10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Fiscal Year Ended December 31, 2017

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File No. 0-28190

CAMDEN NATIONAL CORPORATION

(Exact Name of Registrant As Specified in Its Charter)

Maine	01-0413282
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
2 Elm Street, Camden, ME	04843
(Address of Principal Executive Offices)	(Zip Code)

Registrant’s Telephone Number, Including Area Code: (207) 236-8821

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Name of Exchange on Which Registered
Common Stock, without par value	The NASDAQ Stock Market LLC

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes o No x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o No x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter periods that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	o		Accelerated filer	x
Non-accelerated filer	o	(Do not check if a smaller reporting company)	Smaller reporting company	o
			Emerging growth company	o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial account standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x

The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the Registrant’s most recently completed second fiscal quarter: $652,073,793. Shares of the Registrant’s common stock held by each executive officer, director and person who beneficially own 5% or more of the Registrant’s outstanding common stock have been excluded, in that such persons may be deemed to be affiliates. This determination of affiliate status is not necessarily a conclusive determination for other purposes.

The number of shares outstanding of each of the registrant’s classes of common stock as of February 23, 2018 was 15,536,923.

Certain information required in response to Items 10, 11, 12, 13 and 14 of Part III of this Form 10-K is incorporated by reference from Camden National Corporation’s Definitive Proxy Statement for the 2018 Annual Meeting of Shareholders pursuant to Regulation 14A of the General Rules and Regulations of the Commission.

CAMDEN NATIONAL CORPORATION

2017 FORM 10-K ANNUAL REPORT

TABLE OF CONTENTS

		Page
PART I
Item 1.	Business	2
Item 1A.	Risk Factors	13
Item 1B.	Unresolved Staff Comments	21
Item 2.	Properties	21
Item 3.	Legal Proceedings	21
Item 4.	Mine Safety Disclosures	21
PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	22
Item 6.	Selected Financial Data	24
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	25
Item 7A.	Quantitative and Qualitative Disclosures about Market Risk	62
Item 8.	Financial Statements and Supplementary Data	63
Item 9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	133
Item 9A.	Controls and Procedures	133
Item 9B.	Other Information	134
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	135
Item 11.	Executive Compensation	135
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	135
Item 13.	Certain Relationships, Related Transactions and Director Independence	135
Item 14.	Principal Accounting Fees and Services	135
PART IV
Item 15.	Exhibits and Financial Statement Schedules	136
Item 16.	Form 10-K Summary	138
	Signatures	139

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FORWARD-LOOKING STATEMENTS

The discussions set forth below and in the documents we incorporate by reference herein contain certain statements that may be considered forward-looking statements under the Private Securities Litigation Reform Act of 1995, including certain plans, exceptions, goals, projections, and statements, which are subject to numerous risks, assumptions, and uncertainties. Forward-looking statements can be identified by the use of the words “believe,” “expect,” “anticipate,” “intend,” “estimate,” “assume,” “plan,” “target,” or “goal” or future or conditional verbs such as “will,” “may,” “might,” “should,” “could” and other expressions which predict or indicate future events or trends and which do not relate to historical matters. Forward-looking statements should not be relied on, because they involve known and unknown risks, uncertainties and other factors, some of which are beyond the control of the Company. These risks, uncertainties and other factors may cause the actual results, performance or achievements of the Company to be materially different from the anticipated future results, performance or achievements expressed or implied by the forward-looking statements.

The following factors, among others, could cause the Company’s financial performance to differ materially from the Company’s goals, plans, objectives, intentions, expectations and other forward-looking statements:

• weakness in the United States economy in general and the regional and local economies within the New England region and Maine, which could result in a deterioration of credit quality, an increase in the allowance for loan losses or a reduced demand for the Company’s credit or fee-based products and services;

• changes in trade, monetary, and fiscal policies and laws, including interest rate policies of the Board of Governors of the Federal Reserve System;

• inflation, interest rate, market, and monetary fluctuations;

• competitive pressures, including continued industry consolidation and the increased financial services provided by non-banks;

• volatility in the securities markets that could adversely affect the value or credit quality of the Company’s assets, impairment of goodwill, the availability and terms of funding necessary to meet the Company’s liquidity needs, and could lead to impairment in the value of securities in the Company's investment portfolio;

• changes in information technology that require increased capital spending;

• changes in consumer spending and savings habits;

• changes in tax, banking, securities and insurance laws and regulations; and

• changes in accounting policies, practices and standards, as may be adopted by the regulatory agencies as well as the Financial Accounting Standards Board ("FASB"), and other accounting standard setters.

You should carefully review all of these factors, and be aware that there may be other factors that could cause differences, including the risk factors listed in Part I, Item 1A, “Risk Factors,” beginning on page 13. Readers should carefully review the risk factors described therein and should not place undue reliance on our forward-looking statements.

These forward-looking statements were based on information, plans and estimates at the date of this report, and we do not promise to update any forward-looking statements to reflect changes in underlying assumptions or factors, new information, future events or other changes.

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PART I

Item 1. Business

Overview. Camden National Corporation (hereafter referred to as “we,” “our,” “us,” or the “Company”) is a publicly-held bank holding company, with $4.1 billion in assets at December 31, 2017, incorporated under the laws of the State of Maine and headquartered in Camden, Maine. Camden National Bank (the "Bank"), a wholly-owned subsidiary of the Company, was founded in 1875. The Company was founded in 1984, went public in 1997 and is now registered with NASDAQ Global Market (“NASDAQ”) under the ticker symbol "CAC."

The Company, as a diversified financial services provider, pursues the objective of achieving long-term sustainable growth by balancing growth opportunities against profit, while mitigating risks inherent in the financial services industry. The primary business of the Company and its subsidiary, Camden National Bank (the "Bank"), is to attract deposits from, and to extend loans to, consumer, institutional, municipal, non-profit and commercial customers. The Company, through the Bank, offers commercial and consumer banking products and services as well as investment management and fiduciary services. In addition, Camden Financial Consultants, a division of the Bank, offers brokerage and insurance services. For the year ended December 31, 2017, 2016 and 2015, net interest income was our primary revenue stream making up 75%, 74% and 76%, respectively, of our total revenues (sum of net interest income and non-interest income). Net interest income is the interest earned on our lending activities, investment securities and other interest-earning assets, less the interest paid on interest-bearing deposits and borrowings.

On October 16, 2015, the Company acquired SBM Financial, Inc. ("SBM"), the parent company of The Bank of Maine. This represented the largest acquisition in the Company's long history with total acquired assets of $816.3 million, including loans of $628.0 million, and liabilities of $729.5 million, including deposits and borrowings of $721.2 million.

The consolidated financial statements of the Company accompanying this Form 10-K include the accounts of the Company, the Bank and its subsidiaries and divisions. All inter-company accounts and transactions have been eliminated in consolidation. On September 30, 2016, the Company completed a three-for-two split of its common stock for shareholders of record as of September 15, 2016. Per share information presented in this Form 10-K has been adjusted to reflect the stock split.

The Company is committed to the philosophy of serving the financial needs of customers in our communities, as described in its core purpose: Through each interaction, we will enrich the lives of people, help businesses succeed and vitalize communities.

The Company has achieved a five-year compounded annual asset growth rate of 10%, resulting in $4.1 billion in total assets at December 31, 2017. The following is a chronological time-line of significant events and factors contributing to the Company's asset growth over the past five years:

2013 — The divestiture of our five Franklin County branches, including $46.0 million in loans and $85.9 million in deposits and borrowings, in October 2013.

2014 — The Company achieved loan growth of $192.2 million, primarily within the commercial real estate and commercial loan portfolios. Also, in 2014, we expanded our franchise outside of Maine by opening a commercial loan office in Manchester, New Hampshire, providing us with a wider reach across northern New England.

2015 — The Company completed the acquisition of SBM on October 16, 2015. SBM was approximately one-third the size of the Company pre-acquisition with total assets of $840.1 million, total loans of $615.2 million and total deposits of $687.0 million. The acquisition provided the Company with an expanded presence in Southern and Central Maine, significant low cost deposits, and strengthened its mortgage banking platform, including an additional lending office in Braintree, Massachusetts. In addition, the Company achieved organic loan growth of $102.4 million.

2016 — The Company achieved loan growth of $104.4 million, primarily within the commercial real estate and commercial loan portfolios. In 2016, the Company originated approximately $370.0 million of residential mortgages and sold approximately 65% of its production. This resulted in gains from loan sales of $6.2 million, compared to $1.3 million for 2015.

2017 — The Company achieved loan growth of $187.9 million, or 7%, driven by commercial real estate loan growth of 11%, followed by residential loan growth of 7% and commercial loan growth of 6%. Deposits grew $172.0 million, or 6%, in 2017, driven by low-cost deposits growth of 11%.

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The financial services industry continues to experience consolidations through mergers that could create opportunities for the Company to promote its value proposition to customers. The Company continues to evaluate the possibility of expansion into new markets through both de novo expansion and acquisitions. In addition, the Company is focused on maximizing the potential for growth in existing markets, especially in markets where the Company has less of a presence. Further details on the Company's financial information can be found within the consolidated financial statements within Item 8. Financial Statements and Supplementary Data of this report.

Camden National Bank. The Bank is a national banking association chartered under the laws of the United States headquartered in Camden, Maine. Originally founded in 1875, the Bank became a direct, wholly-owned subsidiary of the Company as a result of a corporate reorganization in 1984. The Bank provides a broad array of banking and other financial services to consumer, commercial, non-profit and municipal customers. As of December 31, 2017, the Bank had 60 branches spread across 13 of Maine's 16 counties, 75 ATMs and two additional lending offices, including a residential mortgage lending office in Braintree, Massachusetts and a commercial lending office in Manchester, New Hampshire. In the first quarter of 2018, the Bank opened an office in Portsmouth, New Hampshire that will provide commercial and residential mortgage lending.

Through Camden National Wealth Management, a department of the Bank, and Camden Financial Consultants, a division of the Bank, the Bank provides comprehensive wealth management, and investment, insurance and financial planning services.

• Camden National Wealth Management provides a broad range of fiduciary and asset management services to both individual and institutional clients. The wealth management services provided by Camden National Wealth Management complement the services provided by the Bank, offering high net worth individuals and families, businesses and not-for profit customers investment management, financial planning and trustee services.

• Camden Financial Consultants is in the business of helping clients meet all of their financial needs. Camden Financial Consultants provides full-service brokerage and insurance and its financial offerings include college, retirement, and estate planning, mutual funds, strategic asset management accounts, and variable and fixed annuities.

Securities are offered through LPL Financial, Member FINRA/SIPC. Camden Financial Consultants and the Bank are not registered broker/dealers and are not affiliated with LPL Financial. The investment products sold through LPL Financial are not insured by Bank deposits and are not insured by the Federal Deposit Insurance Corporation ("FDIC"). These products are not obligations of the Bank and are not endorsed, recommended or guaranteed by the Bank or any government agency. The value of the investment may fluctuate, the return on the investment is not guaranteed, and loss of principal is possible.

Customers may also access the Bank’s products and services using other channels, including on-line at CamdenNational.com.

Healthcare Professional Funding Corporation. Healthcare Professional Funding Corporation ("HPFC") is a wholly-owned subsidiary of the Bank and, prior to the closing of ongoing operations on February 19, 2016, it provided specialized lending to dentists, optometrists and veterinarians across the U.S. HPFC was acquired in connection with the acquisition of SBM. HPFC's website address is www.camdennational.com/healthprofunding.

The Company’s Investor Relations information can be obtained through the Bank’s internet address, CamdenNational.com. The Company makes available on or through its Investor Relations page, without charge, its annual reports on Form 10-K, quarterly reports on Form 10-Q, and current reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, as soon as reasonably practicable after such reports are electronically filed with, or furnished to, the SEC. The Company’s reports filed with, or furnished to, the SEC are also available at the SEC’s website at www.sec.gov. In addition, the Company makes available, free of charge, its press releases and Code of Ethics through the Company’s Investor Relations page. Information on our website is not incorporated by reference into this document and should not be considered part of this report.

Competition. The Company competes throughout Maine, New Hampshire and Massachusetts with our primary markets within Maine. We operate and manage the Bank's business within Maine's various regions, including Mid Coast, Southern, Central, Bangor and Downeast. Many of these markets that we operate in are characterized as rural areas. Major competitors in the Company’s primary market area include local branches of large regional and national banking organizations and brokerage houses, as well as local independent banks, financial advisors, thrift institutions and credit unions. Other competitors for deposits and loans within the Bank’s primary market area include insurance companies, money market funds, consumer finance companies and financing affiliates of consumer durable goods manufacturers.

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The Company and the Bank generally have effectively competed with other financial institutions by emphasizing customer service, highlighted by local decision-making, establishing long-term customer relationships, building customer loyalty and providing products and services designed to meet the needs of customers. The Company, through Camden National Wealth Management and Camden Financial Consultants, competes for trust, trust-related, investment management, individual retirement, foundation and endowment management services and brokerage services with local banks and non-banks, which may now, or in the future, offer a similar range of services, as well as with a number of brokerage firms and investment advisors with offices in the Company’s market area. In addition, most of these services are widely available to the Company’s customers by telephone and over the internet through firms located outside the Company’s market area.

Executive Officers of the Registrant. The following table sets forth certain information regarding the executive officers of the Company, as defined by Rule 3b-7 of the Securities and Exchange Act of 1934, as amended, as of December 31, 2017:

Executive Officer	Age	Position
Gregory A. Dufour	57	President and Chief Executive Officer
Deborah A. Jordan	52	Executive Vice President, Chief Operating and Financial Officer
Joanne T. Campbell	55	Executive Vice President, Risk Management Officer
Edmund M. Hayden III	62	Executive Vice President, Chief Credit Officer
Timothy P. Nightingale	60	Executive Vice President, Senior Loan Officer
Patricia A. Rose	54	Executive Vice President, Retail and Mortgage Banking Officer

Gregory A. Dufour has served as President and Chief Executive Officer ("CEO") of the Company since January 2009. Mr. Dufour joined the Company in April 2001 as Senior Vice President of Finance. In August of 2002, he assumed additional responsibility for Operations and Technology until December 2003. In January 2004, Mr. Dufour was named Chief Banking Officer for the Company and President and Chief Operating Officer for Camden National Bank, and in January 2006, he became President and CEO for Camden National Bank. He also serves on the Board of Directors of Camden National Bank. Prior to joining the Company, Mr. Dufour was Managing Director of Finance and a member of the Executive Operating Group for IBEX Capital Markets in Boston, Massachusetts. In addition to his experience at IBEX, Mr. Dufour held various financial management positions with FleetBoston Corporation and its affiliates, including Vice President and Controller of Debt Capital Markets, Controller of Investment Banking and Banking Group Controller. Mr. Dufour's extensive business and finance background, demonstrated ability to effectively manage growth, strong regulatory expertise and leadership capability contributes to his active support of the Board in his director capacity. Mr. Dufour has served in various volunteer capacities on numerous community-related organizations and currently serves as trustee of Coastal Healthcare Alliance system in Rockport, Maine and as trustee and vice chair of the board of Maine Health in Portland, Maine.

Deborah A. Jordan joined the Company in September 2008 as Senior Vice President, Chief Financial Officer ("CFO"), and Principal Financial and Accounting Officer and was promoted to Executive Vice President ("EVP") in January 2011. Effective January 1, 2015, Ms. Jordan was promoted to Chief Operating Officer ("COO"), and continues to serve as CFO, and Principal Financial and Accounting Officer. Ms. Jordan was previously EVP and CFO of Merrill Merchants Bancshares, Inc. in Bangor, Maine, from January 1993 to August 2008. Ms. Jordan worked at Arthur Andersen & Co. from 1987 to 1992. Ms. Jordan currently serves on the Board of Seven Islands Land Management Company.

Joanne T. Campbell joined the Company in 1996 as Vice President, Manager of Residential Real Estate. She was promoted to Senior Vice President, Compliance, Audit & CRA in 2002, and then to Senior Vice President, Risk Management in 2005 and to EVP in January 2011. Ms. Campbell currently serves as a member of the ABA Risk Management Conference Advisory Board.

Edmund M. Hayden III joined Camden National Bank as Executive Vice President and Chief Credit Officer upon completion of the merger of Camden National Corporation and SBM Financial, Inc. on October 16, 2015. Prior to joining Camden National Bank, Mr. Hayden served as the Chief Risk Officer and Chief Credit Officer of The Bank of Maine since 2011. Previously he was the Executive Vice President and Executive Credit Officer for TD Bank, NA (“TD”) covering the New England and Long Island markets. Mr. Hayden worked for TD (formerly TD Banknorth, NA) for 18 years (1992-2010) primarily in commercial banking. Prior to TD, Mr. Hayden worked for three years as the Senior Lending Officer for Martha’s Vineyard National Bank, and prior to that Mr. Hayden held a variety of positions primarily in commercial lending at Bank of Boston (formerly Bank of Vermont) from 1980 to 1989.

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Timothy P. Nightingale joined the Company in March 2000 as Regional Vice President of UnitedKingfield Bank. In 2001, Mr. Nightingale was named Senior Lending Officer at UnitedKingfield Bank and was promoted to Senior Vice President in 2003. In September 2006, the Company merged UnitedKingfield Bank into Camden National Bank, at which time Mr. Nightingale was named Senior Vice President, Senior Lending Officer for Camden National Bank. In January 2011, he was promoted to EVP. Mr. Nightingale is a member of the board of directors for the Finance Authority of Maine.

Patricia A. Rose joined Camden National Bank in September 2017 as Executive Vice President of Retail & Mortgage Banking. Ms. Rose came to the Company from Citizens Bank where she served for two years as Head of Strategic Onboarding & Orientation, and, prior to that, Director level roles in Retail Network Sales & Strategy at Santander Bank for six years. Ms. Rose began her career in banking at Fleet Bank and Sovereign Bank where she held a variety of leadership roles and served as Market President of Retail Banking in Eastern Massachusetts and New Hampshire.

All of the executive officers will hold office at the discretion of the Company’s Board of Directors. There are no arrangements or understandings between any of the directors, officers or any other persons pursuant to which any of the officers have been selected as officers. There are no “family relationships” among the directors and executive officers, as the Securities and Exchange Commission defines that term.

Employees. The Company employed636 people on a full- or part-time basis as of December 31, 2017.

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Supervision and Regulation

The following discussion addresses elements of the regulatory framework applicable to bank holding companies and their subsidiaries. This regulatory framework is intended primarily for the maintenance of the safety and soundness of depository institutions, the federal deposit insurance system, and depositors, rather than the protection of shareholders of a bank holding company such as the Company.

As a bank holding company, the Company is subject to regulation, supervision and examination by the Board of Governors of the Federal Reserve System (the “FRB”) under the Bank Holding Company Act of 1956, as amended (the “BHCA”). As a national bank, the Bank is subject to regulation, supervision and examination by the Office of the Comptroller of the Currency (the “OCC”).

The following is a summary of certain aspects of various statutes and regulations applicable to the Company and its direct and indirect subsidiaries. This summary is not a comprehensive analysis of all applicable law, however, and you should refer to the applicable statutes and regulations for more information.

Regulation of the Company

The Company is subject to regulation, supervision and examination by the FRB, which has the authority, among other things, to order bank holding companies to cease and desist from unsafe or unsound banking practices; to assess civil money penalties; and to order termination of non-banking activities or termination of ownership and control of a non-banking subsidiary by a bank holding company.

Source of Strength. Under the BHCA, as amended by the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”), the Company is required to serve as a source of financial strength for the Bank. This support may be required at times when the bank holding company may not have the resources to provide support to the Bank. In the event of a bank holding company’s bankruptcy, any commitment by the bank holding company to a federal bank regulatory agency to maintain the capital of a bank subsidiary will be assumed by the bankruptcy trustee and entitled to a priority of payment.

Acquisitions and Activities. The BHCA prohibits a bank holding company, without prior approval of the FRB, from acquiring all or substantially all the assets of a bank, acquiring control of a bank, merging or consolidating with another bank holding company, or acquiring direct or indirect ownership or control of any voting shares of another bank or bank holding company if, after such acquisition, the acquiring bank holding company would control more than 5% of any class of the voting shares of such other bank or bank holding company. The BHCA also prohibits a bank holding company from engaging directly or indirectly in activities other than those of banking, managing or controlling banks or furnishing services to its subsidiary banks. However, a bank holding company may engage in and may own shares of companies engaged in certain activities that the FRB has determined to be closely related to banking or managing and controlling banks as of November 11, 1999.

Limitations on Acquisitions of Company Common Stock. The Change in Bank Control Act prohibits a person or group of persons from acquiring “control” of a bank holding company unless the FRB has been notified and has not objected to the transaction. Under a rebuttable presumption established by the FRB, the acquisition of 10% or more of a class of voting securities of a bank holding company with a class of securities registered under Section 12 of the Exchange Act would constitute the acquisition of control of a bank holding company. In addition, the BHCA prohibits any company from acquiring control of a bank or bank holding company without first having obtained the approval of the FRB. Among other circumstances, under the BHCA, a company has control of a bank or bank holding company if the company owns, controls or holds with power to vote 25% or more of a class of voting securities of the bank or bank holding company, controls in any manner the election of a majority of directors or trustees of the bank or bank holding company, or the FRB has determined, after notice and opportunity for hearing, that the company has the power to exercise a controlling influence over the management or policies of the bank or bank holding company.

Regulation of the Bank

The Bank is subject to regulation, supervision, and examination by the OCC. Additionally, the Federal Deposit Insurance Corporation (the “FDIC”) has secondary supervisory authority as the insurer of the Bank’s deposits. The Bank is also subject to regulations issued by the Consumer Financial Protection Bureau, as enforced by the OCC. Pursuant to the Dodd-Frank Act, the FRB may directly examine the subsidiaries of the Company, including the Bank. The enforcement powers available to the federal banking regulators include, among other things, the ability to issue cease and desist or removal orders; to terminate insurance of deposits; to assess civil money penalties; to issue directives to increase capital; to place the Bank into receivership; and to initiate injunctive actions against banking organizations and institution-affiliated parties.

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Deposit Insurance. The deposit obligations of the Bank are insured by the FDIC’s Deposit Insurance Fund (“DIF”) up to $250,000 per depositor for deposits held in the same right and capacity and are subject to deposit insurance assessments to maintain the DIF. The Federal Deposit Insurance Act (the “FDIA”), as amended by the Federal Deposit Insurance Reform Act and the Dodd-Frank Act, requires the FDIC to take steps as may be necessary to cause the ratio of deposit insurance reserves to estimated insured deposits - the designated reserve ratio - to reach 1.35% by September 30, 2020, and it mandates that the reserve ratio designated by the FDIC for any year may not be less than 1.35%. Further, the Dodd-Frank Act required that, in setting assessments, the FDIC offset the effect of the increase in the minimum reserve ratio from 1.15% to 1.35% on banks with less than $10 billion in assets.

To satisfy these requirements, on March 15, 2016, the FDIC’s Board of Directors approved a final rule to increase the DIF’s reserve ratio to the statutorily required minimum ratio of 1.35% of estimated insured deposits. The final rule imposes on large banks a surcharge of 4.5 basis points of their assessment base, after making certain adjustments. Large banks will pay quarterly surcharges in addition to their regular risk-based assessments. Overall regular risk-based assessment rates will decline once the reserve ratio reaches 1.15%. Small banks, such as the Bank, will receive credits to offset the portion of their assessments that help to raise the reserve ratio from 1.15% to 1.35%. After the reserve ratio reaches 1.38%, the FDIC will automatically apply a small bank’s credits to reduce its regular assessment up to the entire amount of the assessment. The revised deposit insurance assessment pricing became effective on July 1, 2016.

Deposit premiums are based on assets. To determine its deposit insurance premium, the Bank computes the base amount of its average consolidated assets less its average tangible equity (defined as the amount of Tier 1 capital) and the applicable assessment rate. On April 26, 2016, the FDIC’s Board of Directors adopted a final rule that changed the manner in which deposit insurance assessment rates are calculated for established small banks, generally those banks with less than $10 billion of assets that have been insured for at least five years. The rule utilizes the CAMELS rating system, which is a supervisory rating system designed to take into account and reflect all financial and operational risks that a bank may face, including capital adequacy, asset quality, management capability, earnings, liquidity and sensitivity to market risk. Under the final rule, each of seven financial ratios and a weighted average of CAMELS component ratings is multiplied by a corresponding pricing multiplier. The sum of these products is added to a uniform amount, with the resulting sum being an institution’s initial base assessment rate (subject to minimum or maximum assessment rates based on a bank’s CAMELS composite rating). This method takes into account various measures, including an institution’s leverage ratio, brokered deposit ratio, one year asset growth, the ratio of net income before taxes to total assets and considerations related to asset quality. Assessments for established small banks with a CAMELS rating of 1 or 2 range from 1.5 to 16 basis points, after adjustments. Assessment rates for established small banks with a CAMELS rating of 3 range from 3 to 30 basis points, after adjustments. Assessment rates for established small banks with a CAMELS composite rating of 4 or 5 range from 11 to 30 basis points, after adjustments.

The FDIC has the power to adjust deposit insurance assessment rates at any time. In addition, under the FDIA, the FDIC may terminate deposit insurance upon a finding that the institution has engaged in unsafe and unsound practices, is in an unsafe or unsound condition to continue operations, or has violated any applicable law, regulation, rule, order or condition imposed by the FDIC. The Bank’s FDIC insurance expense for the year ended December 31, 2017 was $1.4 million.

Acquisitions and Branching. The Bank must seek prior regulatory approval from the OCC to acquire another bank or establish a new branch office. Well capitalized and well managed banks may acquire other banks in any state, subject to certain deposit concentration limits and other conditions, pursuant to the Riegle-Neal Interstate Banking and Branching Efficiency Act of 1994, as amended by the Dodd-Frank Act. In addition, the Dodd-Frank Act authorizes a state-chartered bank, such as the Bank, to establish new branches on an interstate basis to the same extent a bank chartered by the host state may establish branches.

Activities and Investments of National Banking Associations. National banking associations must comply with the National Bank Act and the regulations promulgated thereunder by the OCC, which limit the activities of national banking associations to those that are deemed to be part of, or incidental to, the “business of banking.” Activities that are part of, or incidental to, the business of banking include taking deposits, borrowing and lending money and discounting or negotiating promissory notes, drafts, bills of exchange, and other evidences of debt. Subsidiaries of national banking associations generally may only engage in activities permissible for the parent national bank. The Dodd-Frank Act bars the Bank from engaging in proprietary trading and from sponsoring and investing in hedge funds and private equity funds, except as permitted under certain limited circumstances.

Lending Restrictions. Federal law limits a bank’s authority to extend credit to its directors, executive officers and 10% shareholders, as well as to entities controlled by such persons. Among other things, extensions of credit to insiders are required to be made on terms that are substantially the same as, and follow credit underwriting procedures that are not less stringent than, those prevailing for comparable transactions with unaffiliated persons. Also, the terms of such extensions of credit may

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not involve more than the normal risk of repayment or present other unfavorable features and may not exceed certain limitations on the amount of credit extended to such persons, individually and in the aggregate, which limits are based, in part, on the amount of the bank’s capital. The Dodd-Frank Act explicitly provides that an extension of credit to an insider includes credit exposure arising from a derivatives transaction, repurchase agreement, reverse repurchase agreement, securities lending transaction or securities borrowing transaction. Additionally, the Dodd-Frank Act requires that asset sale transactions with insiders must be on market terms, and if the transaction represents more than 10% of the capital and surplus of the Bank, be approved by a majority of the disinterested directors of the Bank.

Brokered Deposits. Section 29 of the FDIA and FDIC regulations generally limit the ability of an insured depository institution to accept, renew or roll over any brokered deposit unless the institution’s capital category is “well capitalized” or, with the FDIC’s approval, “adequately capitalized.” Depository institutions that have brokered deposits in excess of 10% of total assets will be subject to increased FDIC deposit insurance premium assessments. However, for institutions that are well capitalized and have a CAMELS composite rating of 1 or 2, reciprocal deposits are deducted from brokered deposits.

Community Reinvestment Act. The Community Reinvestment Act (the “CRA”) requires the OCC to evaluate the Bank’s performance in helping to meet the credit needs of the entire communities it serves, including low and moderate-income neighborhoods, consistent with its safe and sound banking operations, and to take this record into consideration when evaluating certain applications. The OCC’s CRA regulations are generally based upon objective criteria of the performance of institutions under three key assessment tests: (i) a lending test, to evaluate the institution’s record of making loans in its service areas; (ii) an investment test, to evaluate the institution’s record of investing in community development projects, affordable housing, and programs benefiting low or moderate income individuals and businesses; and (iii) a service test, to evaluate the institution’s delivery of services through its branches, ATMs, and other offices. Failure of an institution to receive at least a “Satisfactory” rating could inhibit the Bank or the Company from undertaking certain activities, including engaging in activities permitted as a financial holding company under the Gramm-Leach-Bliley Act of 1999 (the “GLBA”) and acquisitions of other financial institutions. The Bank currently has an “Outstanding” CRA rating.

Capital Adequacy and Safety and Soundness

Regulatory Capital Requirements. The FRB and the OCC have issued substantially similar risk-based and leverage capital guidelines applicable to United States banking organizations. These rules are intended to reflect the relationship between the banking organization’s capital and the degree of risk associated with its operations based on transactions recorded on-balance sheet as well as off-balance sheet items. The FRB and the OCC may from time to time require that a banking organization maintain capital above the minimum levels discussed below, due to the banking organization’s financial condition or actual or anticipated growth.

The capital adequacy rules define qualifying capital instruments and specify minimum amounts of capital as a percentage of assets that banking organizations are required to maintain. Common equity Tier I capital generally includes common stock and related surplus, retained earnings and, in certain cases and subject to certain limitations, minority interest in consolidated subsidiaries, less goodwill, other non-qualifying intangible assets and certain other deductions. Tier I capital for banks and bank holding companies generally consists of the sum of common equity Tier I capital, non-cumulative perpetual preferred stock, and related surplus and, in certain cases and subject to limitations, minority interest in consolidated subsidiaries that does not qualify as common equity Tier I capital, less certain deductions. Tier II capital generally consists of hybrid capital instruments, perpetual debt and mandatory convertible debt securities, cumulative perpetual preferred stock, term subordinated debt and intermediate-term preferred stock, and, subject to limitations, allowances for loan losses. The sum of Tier I and Tier II capital less certain required deductions represents qualifying total risk-based capital. Prior to the effectiveness of certain provisions of the Dodd-Frank Act, bank holding companies were permitted to include trust preferred securities and cumulative perpetual preferred stock in Tier I capital, subject to limitations. However, the FRB’s capital rule applicable to bank holding companies permanently grandfathers non-qualifying capital instruments, including trust preferred securities, issued before May 19, 2010 by depository institution holding companies with less than $15 billion in total assets as of December 31, 2009, subject to a limit of 25% of Tier I capital. In addition, under rules that became effective January 1, 2015, accumulated other comprehensive income (positive or negative) must be reflected in Tier I capital; however, the Company was permitted to make a one-time, permanent election to continue to exclude accumulated other comprehensive income from capital. The Company has made this election.

Under the capital rules, risk-based capital ratios are calculated by dividing common equity Tier I, Tier I and total risk-based capital, respectively, by risk-weighted assets. Assets and off-balance sheet credit equivalents are assigned a risk weight based primarily on relative credit risk.

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Under the FRB's capital rules applicable to the Company and the OCC's capital rules applicable to the Bank, the Company and the Bank are each required to maintain a minimum common equity Tier I capital to risk-weighted assets ratio of 4.5%, a minimum Tier I capital to risk-weighted assets ratio of 6%, a minimum total capital to risk-weighted assets ratio of 8% and a minimum leverage ratio of 4%. Additionally, subject to a transition schedule, these rules require an institution to establish a capital conservation buffer of common equity Tier I capital in an amount above the minimum risk-based capital requirements for “adequately capitalized” institutions equal to 2.5% of total risk weighted assets, or face restrictions on the ability to pay dividends, pay discretionary bonuses, and to engage in share repurchases.

Under the FRB's rules, a bank holding company, such as the Company, is considered “well capitalized” if the bank holding company (i) has a total risk based capital ratio of at least 10%, (ii) has a Tier I risk-based capital ratio of at least 6%, and (iii) is not subject to any written agreement order, capital directive or prompt corrective action directive to meet and maintain a specific capital level for any capital measure. Under the OCC’s rules, an OCC supervised institution is considered “well capitalized” if it (i) has a total risk-based capital ratio of 10.0% or greater; (ii) a Tier I risk-based capital ratio of 8.0% or greater; (iii) a common Tier I equity ratio of at least 6.5% or greater, (iv) a leverage capital ratio of 5.0% or greater; and (v) is not subject to any written agreement, order, capital directive, or prompt corrective action directive to meet and maintain a specific capital level for any capital measure.

Generally, a bank, upon receiving notice that it is not adequately capitalized (i.e., that it is “undercapitalized”), becomes subject to the prompt corrective action provisions of Section 38 of FDIA that, for example, (i) restrict payment of capital distributions and management fees, (ii) require that is federal bank regulator monitor the condition of the institution and its efforts to restore its capital, (iii) require submission of a capital restoration plan, (iv) restrict the growth of the institution’s assets and (v) require prior regulatory approval of certain expansion proposals. A bank that is required to submit a capital restoration plan must concurrently submit a performance guarantee by each company that controls the bank. A bank that is “critically undercapitalized” (i.e., has a ratio of tangible equity to total assets that is equal to or less than 2.0%) will be subject to further restrictions, and generally will be placed in conservatorship or receivership within 90 days.

Information concerning the Company and the Bank with respect to capital requirements is incorporated by reference

from Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Capital

Resources and Note 13, Shareholders' Equity within Item 8. Financial Statements and Supplementary Data.

The Bank is considered “well capitalized” under all regulatory definitions and the Company is considered "well capitalized" under the FRB's rules applicable to bank holding companies.

Safety and Soundness Standards. The FDIA requires the federal bank regulatory agencies to prescribe standards, by regulations or guidelines, relating to internal controls, information systems and internal audit systems, loan documentation, credit underwriting, interest rate risk exposure, asset growth, asset quality, earnings, stock valuation and compensation, fees and benefits, and such other operational and managerial standards as the agencies deem appropriate. Guidelines adopted by the federal bank regulatory agencies establish general standards relating to internal controls and information systems, internal audit systems, loan documentation, credit underwriting, interest rate exposure, asset growth, asset quality, earnings and compensation, fees and benefits. In general, these guidelines require, among other things, appropriate systems and practices to identify and manage the risk and exposures specified in the guidelines. The guidelines prohibit excessive compensation as an unsafe and unsound practice and describe compensation as excessive when the amounts paid are unreasonable or disproportionate to the services performed by an executive officer, employee, director or principal stockholder. In addition, the federal banking agencies adopted regulations that authorize, but do not require, an agency to order an institution that has been given notice by an agency that it is not satisfying any of such safety and soundness standards to submit a compliance plan. If, after being so notified, an institution fails to submit an acceptable compliance plan or fails in any material respect to implement an acceptable compliance plan, the agency must issue an order directing action to correct the deficiency and may issue an order restricting asset growth, requiring an institution to increase its ratio of tangible equity to assets or directing other actions of the types to which an undercapitalized institution is subject under the “prompt corrective action” provisions of the FDIA. See “— Regulatory Capital Requirements” above. If an institution fails to comply with such an order, the agency may seek to enforce such order in judicial proceedings and to impose civil money penalties.

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Dividend Restrictions

The Company is a legal entity separate and distinct from its subsidiaries. The revenue of the Company (on a parent-only basis) is derived primarily from interest and dividends paid to it by the Bank. The right of the Company, and consequently the right of shareholders of the Company, to participate in any distribution of the assets or earnings of the Bank through the payment of such dividends or otherwise is necessarily subject to the prior claims of creditors of the Bank (including depositors), except to the extent that certain claims of the Company in a creditor capacity may be recognized.

Restrictions on Bank Holding Company Dividends. The FRB has the authority to prohibit bank holding companies from paying dividends if such payment is deemed to be an unsafe or unsound practice. The FRB has indicated generally that it may be an unsafe or unsound practice for bank holding companies to pay dividends unless the bank holding company’s net income over the preceding year is sufficient to fund the dividends and the expected rate of earnings retention is consistent with the organization’s capital needs, asset quality and overall financial condition. Further, the Company’s ability to pay dividends is restricted if it does not maintain the capital conservation buffer. See “—Capital Adequacy and Safety and Soundness—Regulatory Capital Requirements” above.

Under Maine law, a corporation’s Board of Directors may declare, and the corporation may pay, dividends on its outstanding shares, in cash or other property, generally only out of the corporation’s unreserved and unrestricted earned surplus, or out of the unreserved and unrestricted net earnings of the current fiscal year and the next preceding fiscal year taken as a single period, except under certain circumstances, including when the corporation is insolvent, or when the payment of the dividend would render the corporation insolvent or when the declaration would be contrary to the corporation’s charter.

Restrictions on Bank Dividends. National banks generally may not declare a dividend in excess of the bank’s undivided profits and, absent OCC approval, if the total amount of dividends declared by the national bank in any calendar year exceeds the total of the national bank’s retained net income of that year to date combined with its retained net income for the preceding two years. National banks also are prohibited from declaring or paying any dividend if, after making the dividend, the national bank would be considered “undercapitalized” (as defined by reference to other OCC regulations). The OCC has the authority to use its enforcement powers to prohibit a national bank, such as the Bank, from paying dividends if, in its opinion, the payment of dividends would constitute an unsafe or unsound practice.

Certain Transactions by Bank Holding Companies with their Affiliates

There are various statutory restrictions on the extent to which bank holding companies and their non-bank subsidiaries may borrow, obtain credit from or otherwise engage in “covered transactions” with their insured depository institution subsidiaries. The Dodd-Frank Act amended the definition of affiliate to include an investment fund for which the depository institution or one of its affiliates is an investment adviser. An insured depository institution (and its subsidiaries) may not lend money to, or engage in covered transactions with, its non-depository institution affiliates if the aggregate amount of covered transactions outstanding involving the bank, plus the proposed transaction exceeds the following limits: (i) in the case of any one such affiliate, the aggregate amount of covered transactions of the insured depository institution and its subsidiaries cannot exceed 10% of the capital stock and surplus of the insured depository institution; and (ii) in the case of all affiliates, the aggregate amount of covered transactions of the insured depository institution and its subsidiaries cannot exceed 20% of the capital stock and surplus of the insured depository institution. For this purpose, “covered transactions” are defined by statute to include a loan or extension of credit to an affiliate, a purchase of or investment in securities issued by an affiliate, a purchase of assets from an affiliate unless exempted by the FRB, the acceptance of securities issued by an affiliate as collateral for a loan or extension of credit to any person or company, the issuance of a guarantee, acceptance or letter of credit on behalf of an affiliate, securities borrowing or lending transactions with an affiliate that creates a credit exposure to such affiliate, or a derivatives transaction with an affiliate that creates a credit exposure to such affiliate. Covered transactions are also subject to certain collateral security requirements. Covered transactions as well as other types of transactions between a bank and a bank holding company must be on market terms and not otherwise unduly favorable to the holding company or an affiliate of the holding company. Moreover, the Bank Holding Company Act Amendments of 1970 provide that, to further competition, a bank holding company and its subsidiaries are prohibited from engaging in certain tying arrangements in connection with any extension of credit, lease or sale of property of any kind, or furnishing of any service.

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Consumer Protection Regulation

The Company and the Bank are subject to federal and state laws designed to protect consumers and prohibit unfair or deceptive business practices, including the Equal Credit Opportunity Act, the Fair Housing Act, the Home Ownership Protection Act, the Fair Credit Reporting Act, as amended by the Fair and Accurate Credit Transactions Act of 2003 (the “FACT Act”), the GLBA, the Truth in Lending Act, the CRA, the Home Mortgage Disclosure Act, the Real Estate Settlement Procedures Act, the National Flood Insurance Act and various state law counterparts. These laws and regulations mandate certain disclosure requirements and regulate the manner in which financial institutions must interact with customers when taking deposits, making loans, collecting loans and providing other services. Further, the Dodd-Frank Act established the CFPB, which has the responsibility for making rules and regulations under the federal consumer protection laws relating to financial products and services. The CFPB also has a broad mandate to prohibit unfair, deceptive or abusive acts and practices and is specifically empowered to require certain disclosures to consumers and draft model disclosure forms. Failure to comply with consumer protection laws and regulations can subject financial institutions to enforcement actions, fines and other penalties. The OCC examines the Bank for compliance with CFPB rules and enforces CFPB rules with respect to the Bank.

Mortgage Reform. The Dodd-Frank Act prescribes certain standards that mortgage lenders must consider before making a residential mortgage loan, including verifying a borrower’s ability to repay such mortgage loan, and allows borrowers to assert violations of certain provisions of the Truth in Lending Act as a defense to foreclosure proceedings. Under the Dodd-Frank Act, prepayment penalties are prohibited for certain mortgage transactions and creditors are prohibited from financing insurance policies in connection with a residential mortgage loan or home equity line of credit. In addition, the Dodd-Frank Act prohibits mortgage originators from receiving compensation based on the terms of residential mortgage loans and generally limits the ability of a mortgage originator to be compensated by others if compensation is received from a consumer. The Dodd-Frank Act requires mortgage lenders to make additional disclosures prior to the extension of credit, in each billing statement and for negative amortization loans and hybrid adjustable rate mortgages.

Privacy and Customer Information Security. The GLBA requires financial institutions to implement policies and procedures regarding the disclosure of nonpublic personal information about consumers to nonaffiliated third parties. In general, the Bank must provide its customers with an initial and annual disclosure that explains its policies and procedures regarding the disclosure of such nonpublic personal information, and, except as otherwise required or permitted by law, the Bank is prohibited from disclosing such information except as provided in such policies and procedures. However, an annual disclosure is not required to be provided by a financial institution if the financial institution only discloses information under exceptions from GLBA that do not require an opt out to be provided and if there has been no change in its privacy policies and practices since its most recent disclosure provided to consumers. The GLBA also requires that the Bank develop, implement and maintain a comprehensive written information security program designed to ensure the security and confidentiality of customer information (as defined under GLBA), to protect against anticipated threats or hazards to the security or integrity of such information; and to protect against unauthorized access to or use of such information that could result in substantial harm or inconvenience to any customer. The Bank is also required to send a notice to customers whose sensitive information has been compromised if unauthorized use of this information is reasonably possible. Most states, including the states where the Bank operates, have enacted legislation concerning breaches of data security and Congress is considering federal legislation that would require consumer notice of data security breaches. Pursuant to the FACT Act, the Bank must develop and implement a written identity theft prevention program to detect, prevent, and mitigate identity theft in connection with the opening of certain accounts or certain existing accounts. Additionally, the FACT Act amends the Fair Credit Reporting Act to generally prohibit a person from using information received from an affiliate to make a solicitation for marketing purposes to a consumer, unless the consumer is given notice and a reasonable opportunity and a reasonable and simple method to opt out of the making of such solicitations.

Anti-Money Laundering

The Bank Secrecy Act. Under the Bank Secrecy Act (“BSA”), a financial institution, is required to have systems in place to detect certain transactions, based on the size and nature of the transaction. Financial institutions are generally required to report to the United States Treasury any cash transactions involving more than $10,000. In addition, financial institutions are required to file suspicious activity reports for any transaction or series of transactions that involve more than $5,000 and which the financial institution knows, suspects or has reason to suspect involves illegal funds, is designed to evade the requirements of the BSA or has no lawful purpose. The Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (the “USA PATRIOT Act”), which amended the BSA, together with the implementing regulations of various federal regulatory agencies, has caused financial institutions, such as the Bank, to adopt and implement additional policies or amend existing policies and procedures with respect to, among other things, anti-money laundering compliance, suspicious activity, currency transaction reporting, customer identity verification and customer risk analysis. In evaluating an application under Section 3 of the BHCA to acquire a bank or an application under the Bank Merger Act to merge

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banks or affect a purchase of assets and assumption of deposits and other liabilities, the applicable federal banking regulator must consider the anti-money laundering compliance record of both the applicant and the target. In addition, under the USA PATRIOT Act financial institutions are required to take steps to monitor their correspondent banking and private banking relationships as well as, if applicable, their relationships with “shell banks.”

OFAC. The U.S. has imposed economic sanctions that affect transactions with designated foreign countries, nationals and others. These sanctions, which are administered by the U.S. Treasury’s Office of Foreign Assets Control (“OFAC”), take many different forms. Generally, however, they contain one or more of the following elements: (i) restrictions on trade with or investment in a sanctioned country, including prohibitions against direct or indirect imports from and exports to a sanctioned country and prohibitions on “U.S. persons” engaging in financial or other transactions relating to a sanctioned country or with certain designated persons and entities; (ii) a blocking of assets in which the government or specially designated nationals of the sanctioned country have an interest, by prohibiting transfers of property subject to U.S. jurisdiction (including property in the possession or control of U.S. persons); and (iii) restrictions on transactions with or involving certain persons or entities. Blocked assets (for example, property and bank deposits) cannot be paid out, withdrawn, set off or transferred in any manner without a license from OFAC. Failure to comply with these sanctions could have serious legal and reputational consequences for the Company.

Regulation of Other Activities

Volcker Rule Restrictions on Proprietary Trading and Sponsorship of Hedge Funds and Private Equity Funds. The Dodd-Frank Act bars banking organizations, such as the Company and the Bank, from engaging in proprietary trading and from sponsoring and investing in hedge funds and private equity funds, except as permitted under certain circumstances, in a provision commonly referred to as the “Volcker Rule.” Under the Dodd-Frank Act, proprietary trading generally means trading by a banking entity or its affiliate for its trading account. Hedge funds and private equity funds are described by the Dodd-Frank Act as funds that would be registered under the 1940 Act but for certain enumerated exemptions. The Volcker Rule restrictions apply to the Company, the Bank and all of their subsidiaries and affiliates.

Legal Contingencies

In the normal course of business, the Company and its subsidiaries are subject to pending and threatened legal actions. Although the Company is not able to predict the outcome of such actions, after reviewing pending and threatened actions with counsel, management believes that based on the information currently available the outcome of such actions, individually or in the aggregate, will not have a material adverse effect on the Company’s consolidated financial statements.

Reserves are established for legal claims only when losses associated with the claims are judged to be probable, and the loss can be reasonably estimated. In many lawsuits and arbitrations, it is not possible to determine whether a liability has been incurred or to estimate the ultimate or minimum amount of that liability until the case is close to resolution, in which case a reserve will not be recognized until that time.

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Item 1A. Risk Factors

Our loans are concentrated in certain areas of Maine and adverse conditions in those markets could adversely affect our operations.

We primarily serve individuals and businesses located in Maine, as 81% of our loan portfolio is concentrated among borrowers in Maine, with higher concentrations of exposure in Cumberland, Hancock, Kennebec, Knox, Penobscot and York counties. Further, because a substantial portion of the loan portfolio is secured by real estate in this area, the value of the associated collateral is also subject to regional real estate market conditions. Adverse economic, political or business developments or natural hazards may affect these areas and the ability of property owners in these areas to make payments of principal and interest on the underlying mortgages. If these regions experience adverse economic, political or business conditions, we would likely experience higher rates of loss and delinquency on these loans than if the loans were more geographically diverse.

We experience strong competition within our markets, which may impact our profitability.

Competition in the banking and financial services industry is strong. In our market areas, we compete for loans, deposits and other financial products and services with large financial companies, local independent banks, thrift institutions, savings institutions, mortgage brokerage firms, credit unions, finance companies, mutual funds, insurance companies and brokerage and investment banking firms operating locally as well as nationally. Some of these competitors have substantially greater resources and lending limits than those of the Bank and may offer services that the Bank does not or cannot provide. There is also increased competition by out-of-market competitors through the internet. Our long-term success depends on the ability of our subsidiaries to compete successfully with other financial institutions in their service areas. Because we maintain a smaller staff and have fewer financial and other resources than larger institutions with which we compete, we may be limited in our ability to attract customers. If we are unable to attract and retain customers, we may be unable to achieve growth in the loan and core deposit portfolios, and our results of operations and financial condition may be negatively impacted.

Our loan portfolio includes commercial real estate and commercial loans, which are generally riskier than other types of loans.

At December 31, 2017, our commercial real estate and commercial loan portfolios comprised 57% of our total loan balances. Commercial loans generally carry larger loan balances and involve a higher risk of nonpayment or late payment than residential mortgage loans. These loans may lack standardized terms and may include a balloon payment feature. The ability of a borrower to make or refinance a balloon payment may be affected by a number of factors, including the financial condition of the borrower, prevailing economic conditions and prevailing interest rates. Repayment of these loans is generally more dependent on the economy and the successful operation of a business. Because of the risks associated with commercial loans, we may experience higher rates of default than if the portfolio were more heavily weighted toward residential mortgage loans. Higher rates of default could have an adverse effect on our financial condition and results of operations.

As of December 31, 2017, the most significant industry concentration within our loan portfolio was non-residential building operators (operators of commercial and industrial buildings, retail establishments, theaters, banks and insurance buildings), which was 11% of our total loans and 27% of our total commercial real estate portfolio. As of December 31, 2017, we had no other industry concentrations in excess of 10% of total loans.

If our allowance for loan losses is not adequate to cover actual loan losses, our earnings could decrease.

We make various assumptions and judgments about the collectability of our loan portfolio and provide an allowance for probable loan losses based on a number of factors. On a monthly basis, management reviews the allowance for loan losses to assess recent asset quality trends and impact on the Company's financial condition. On a quarterly basis, the allowance for loan losses is reviewed and approved at the Bank's Board of Directors meeting. If our assumptions are incorrect, the allowance for loan losses may not be sufficient to cover the losses we could experience, which would have an adverse effect on operating results, and may also cause us to increase the allowance for loan losses in the future. In addition, bank regulators periodically review our allowance for loan losses and may require us to increase our provisions for credit losses or recognize further loan charge-offs. Any increase in our allowance for loan losses or loan charge-offs as required by regulatory authorities could have a material adverse effect on our consolidated results of operations and financial condition. If additional amounts are provided to the allowance for loan losses, our earnings could decrease.

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Interest rate volatility may reduce our profitability.

Our profitability depends to a large extent upon our net interest income, which is the difference between interest income on interest-earning assets, such as loans and investments, and interest expense related to interest-bearing liabilities, such as deposits and borrowed funds. Net interest income can be affected significantly by changes in market interest rates. In particular, changes in relative interest rates may reduce our net interest income as the difference between interest income and interest expense decreases. As a result, we have adopted asset and liability management policies to minimize the potential adverse effects of changes in interest rates on net interest income, primarily by altering the mix and maturity of loans, investments and funding sources. However, there can be no assurance that a change in interest rates will not negatively impact our results of operations or financial condition. Because market interest rates may change by differing magnitudes and at different times, significant changes in interest rates over an extended period of time could reduce overall net interest income. An increase in interest rates could also have a negative impact on our results of operations by reducing the ability of borrowers to repay their current loan obligations, which could not only result in increased loan defaults, foreclosures and write-offs, but also necessitate further increases to our allowance for loan losses.

Our cost of funds for banking operations may increase as a result of loss of deposits or a change in deposit mix.

Deposits are a low cost and stable source of funding. We compete with banks and other financial institutions for deposits. Funding costs may increase if we lose deposits and are forced to replace them with more expensive sources of funding, if clients shift their deposits into higher cost products or if we need to raise interest rates to avoid losing deposits. Higher funding costs reduce our net interest margin, net interest income and net income.

Potential downgrades of U.S. government securities by one or more of the credit ratings agencies could have a material adverse effect on our financial results.

A possible future downgrade of the sovereign credit ratings of the U.S. government and a decline in the perceived creditworthiness of U.S. government-related obligations could impact our ability to obtain funding that is collateralized by affected instruments, as well as affect the pricing of that funding when it is available. A downgrade may also adversely affect the market value of such instruments. We cannot predict if, when or how any changes to the credit ratings or perceived creditworthiness of these organizations will affect economic conditions. Such ratings actions could result in a significant adverse impact on us. Among other things, a further downgrade in the U.S. government’s credit rating could adversely impact the value of our securities portfolio and may trigger requirements that we post additional collateral for trades relative to these securities. A downgrade of the sovereign credit ratings of the U.S. government or the credit ratings of related institutions, agencies or instruments would significantly exacerbate the other risks to which we are subject and any related adverse effects on the business, financial condition and results of operations.

Wholesale funding sources may prove insufficient to replace deposits at maturity and support our operations and future growth.

We and our bank subsidiary must maintain sufficient funds to respond to the needs of depositors and borrowers. To manage liquidity, we draw upon a number of funding sources in addition to core deposit growth and repayments and maturities of loans and investments. These sources include Federal Home Loan Bank advances, proceeds from the sale of investments and loans, and liquidity resources at the holding company. Our ability to manage liquidity will be severely constrained if we are unable to maintain access to funding or if adequate financing is not available to accommodate future growth at acceptable costs. In addition, if we are required to rely more heavily on more expensive funding sources to support future growth, our revenues may not increase proportionately to cover our costs. In this case, operating margins and profitability would be adversely affected. Turbulence in the capital and credit markets may adversely affect our liquidity and financial condition and the willingness of certain counterparties and customers to do business with us.

We have credit and counterparty risk inherent in our securities portfolio and the soundness of other financial institutions that could adversely affect us.

Our ability to engage in routine funding transactions could be adversely affected by the actions and commercial soundness of other financial institutions. Financial services institutions are interrelated as a result of trading, clearing, counterparty and other relationships. We maintain a diversified securities portfolio and have exposure to many different counterparties, and we routinely execute transactions with counterparties in the financial industry, including brokers and dealers, other commercial banks, investment banks, mutual and hedge funds, and other financial institutions. As a result, defaults by, or even rumors or questions about, one or more financial services institutions, or the financial services industry generally, could lead to market-wide liquidity problems and losses or defaults by us or by other institutions and organizations. Many of these transactions

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expose us to credit risk in the event of default of our counterparty or client. Furthermore, our credit risk may be exacerbated when the collateral held by us cannot be liquidated or is liquidated at prices not sufficient to recover the full amount of the financial instrument exposure due to us. There is no assurance that any such losses would not materially and adversely affect our results of operations.

We believe that we have adequately reviewed our investment securities for impairment and we did not recognize any other-than-temporary impairments on our investment securities portfolio in 2017. However, over time, the economic and market environment may provide additional insight regarding the fair value of certain securities, which could change our judgment regarding impairment. In addition, if the counter-party should default, become insolvent, declare bankruptcy, or otherwise cease to exist, the value of our investment may be impaired. This could result in realized losses relating to other-than-temporary declines being charged against future income. Given the significant judgments involved, there is risk that material other-than-temporary impairments may be charged to income in future periods, resulting in realized losses.

Market changes may adversely affect demand for our services and impact results of operations.

Channels for servicing our customers are evolving rapidly, with less reliance on traditional branches, more use of online and mobile banking, and increased demand for universal bankers and other relationship managers who can service multiples product lines. We compete with larger providers that are rapidly evolving their service offerings and escalating the costs of evolving the Bank’s efforts to keep pace. We have a process for evaluating the profitability of our branches and other office and operational facilities. The identification of unprofitable operations and facilities can lead to restructuring charges and introduce the risk of disruptions to revenues and customer relationships.

Our financial condition and results of operations have been adversely affected, and may continue to be adversely affected, by the U.S. and international financial market and economic conditions.

We have been, and continue to be, impacted by general business and economic conditions in the United States and, to a lesser extent, abroad. These conditions include short-term and long-term interest rates, inflation, money supply, political issues, legislative and regulatory changes, fluctuations in both debt and equity capital markets, broad trends in industry and finance, unemployment and investor confidence, all of which are beyond our control. While in recent years there has been gradual improvement in the U.S. economy, deterioration in any of these conditions could result in increases in loan delinquencies and non-performing assets, decreases in loan collateral values, the value of our investment portfolio and demand for our products and services. Furthermore, while the U.S. economy is improving, the recovery has been slow and there continues to be some uncertainty regarding the sustainability.

Prepayments of loans may negatively impact our business.

Generally, our customers may prepay the principal amount of their outstanding loans at any time. The speeds at which such prepayments occur, as well as the size of such prepayments, are within our customers’ discretion. Fluctuations in interest rates, in certain circumstances, may also lead to high levels of loan prepayments, which may also have an adverse impact on our net interest income. If customers prepay the principal amount of their loans, and we are unable to lend those funds to other borrowers or invest the funds at the same or higher interest rates, our interest income will be reduced. A significant reduction in interest income could have a negative impact on our results of operations and financial condition.

Our banking business is highly regulated, and we may be adversely affected by changes in law and regulation.

We are subject to regulation and supervision by the FRB, and the Bank is subject to regulation and supervision by the OCC and the FDIC. Federal laws and regulations govern numerous matters affecting us, including changes in the ownership or control of banks and bank holding companies, maintenance of adequate capital and the financial condition of a financial institution, permissible types, amounts and terms of extensions of credit and investments, permissible nonbanking activities, the level of reserves against deposits and restrictions on dividend payments. The OCC possesses the power to issue cease and desist orders to prevent or remedy unsafe or unsound practices or violations of law by banks subject to their regulation, and the FRB possesses similar powers with respect to bank holding companies. These and other restrictions limit the manner in which we may conduct business and obtain financing.

Our business is highly regulated and the laws, rules, regulations, and supervisory guidance and policies applicable to us are subject to regular modification and change. These changes could adversely and materially impact us. The Dodd-Frank Act instituted major changes to the banking and financial institutions regulatory regimes in light of the performance of and government intervention in the financial services sector. Other changes to statutes, regulations, or regulatory policies, including changes in interpretation or implementation of statutes, regulations, or policies, could subject us to additional costs, limit the

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types of financial services and products we may offer, and/or increase the ability of non-banks to offer competing financial services and products, among other things. Failure to comply with laws, regulations, policies or supervisory guidance could result in enforcement and other legal actions by federal or state authorities, including criminal and civil penalties, the loss of FDIC insurance, revocation of a banking charter, other sanctions by regulatory agencies, civil money penalties, and/or reputational damage, which could have a material adverse effect on our business, financial condition, and results of operations. See Item 1. “Business-Supervision and Regulation.”

We are subject to capital and liquidity standards that require banks and bank holding companies to maintain more and higher quality capital and greater liquidity that has historically been the case.

We became subject to new capital requirements in 2015. These new standards, which now apply and will be fully phased-in by 2018, force bank holding companies and their bank subsidiaries to maintain substantially higher levels of capital as a percentage of their assets, with a greater emphasis on common equity as opposed to other components of capital. The need to maintain more and higher quality capital, as well as greater liquidity, and generally increased regulatory scrutiny with respect to capital levels, may at some point limit our business activities, including lending, and our ability to expand. It could also result in our being required to take steps to increase our regulatory capital and may dilute shareholder value or limit our ability to pay dividends or otherwise return capital to our investors through stock repurchases. Pursuant to the Dodd-Frank Act, we were permitted to make a one-time, permanent election to continue to exclude accumulated other comprehensive income from capital. We made this election.

We face significant legal risks.

From time to time, we are named as a defendant or are otherwise involved in various legal proceedings, including class actions and other litigation or disputes with third parties. There is no assurance that litigation with private parties will not increase in the future. Future actions against us may result in judgments, settlements, fines, penalties or other results adverse to us, which could materially adversely affect our business, financial condition or results of operations, or cause serious reputational harm to us. As a participant in the financial services industry, we are exposed to a high level of potential litigation related to our businesses and operations. Although we maintain insurance, the scope of this coverage may not provide us with full, or even partial, coverage in any particular case. As a result, a judgment against us in any such litigation could have a material adverse effect on our financial condition and results of operation.

We may incur fines, penalties and other negative consequences from regulatory violations, possibly even inadvertent or unintentional violations.

The financial services industry is subject to intense scrutiny from bank supervisors in the examination process and aggressive enforcement of federal and state regulations, particularly with respect to mortgage-related practices and other consumer compliance matters, and compliance with anti-money laundering, Bank Secrecy Act and Office of Foreign Assets Control regulations, and economic sanctions against certain foreign countries and nationals. Enforcement actions may be initiated for violations of laws and regulations and unsafe or unsound practices. We maintain systems and procedures designed to ensure that we comply with applicable laws and regulations; however, some legal/regulatory frameworks provide for the imposition of fines or penalties for noncompliance even though the noncompliance was inadvertent or unintentional and even though there were systems and procedures designed to ensure compliance in place at the time. Failure to comply with these and other regulations, and supervisory expectations related thereto, may result in fines, penalties, lawsuits, regulatory sanctions, reputation damage, or restrictions on our business.

We are subject to numerous laws designed to protect consumers, including the Community Reinvestment Act and fair lending laws, and failure to comply with these laws could lead to a wide variety of sanctions.

The Community Reinvestment Act, the Equal Credit Opportunity Act, the Fair Housing Act and other fair lending laws and regulations impose community investment and nondiscriminatory lending requirements on financial institutions. The Consumer Financial Protection Bureau, the Department of Justice and other federal agencies are responsible for enforcing these laws and regulations. A successful regulatory challenge to an institution’s performance under the Community Reinvestment Act, the Equal Credit Opportunity Act, the Fair Housing Act or other fair lending laws and regulations could result in a wide variety of sanctions, including damages and civil money penalties, injunctive relief, restrictions on mergers and acquisitions, restrictions on expansion and restrictions on entering new business lines. Private parties may also have the ability to challenge an institution’s performance under fair lending laws in private class action litigation. Such actions could have a material adverse effect on our business, financial condition and results of operations.

16

We are subject to reputational risk.

We are dependent on our reputation within our market area, as a trusted and responsible financial company, for all aspects of our relationships with customers, employees, vendors, third-party service providers, and others, with whom we conduct business or potential future business. Our actual or perceived failure to (a) identify and address potential conflicts of interest, ethical issues, money-laundering, or privacy issues; (b) meet legal and regulatory requirements applicable to the Bank and to the Company; (c) maintain the privacy of customer and accompanying personal information; (d) maintain adequate record keeping; (e) engage in proper sales and trading practices; and (f) identify the legal, reputational, credit, liquidity and market risks inherent in our products could give rise to reputational risk that could cause harm to the Bank and our business prospects. If we fail to address any of these issues in an appropriate manner, we could be subject to additional legal risks, which, in turn, could increase the size and number of litigation claims and damages asserted or subject us to enforcement actions, fines and penalties and cause us to incur related costs and expenses. Our ability to attract and retain customers and employees could be adversely affected to the extent our reputation is damaged.

We may incur significant losses as a result of ineffective risk management processes and strategies.

We seek to monitor and control our risk exposure through a risk and control framework encompassing a variety of separate but complementary financial, credit, operational, compliance and legal reporting systems, internal controls, management review processes and other mechanisms. While we employ a broad and diversified set of risk monitoring and risk mitigation techniques, those techniques and the judgments that accompany their application may not be effective and may not anticipate every economic and financial outcome in all market environments or the specifics and timing of such outcomes. Market conditions over the last several years have involved unprecedented dislocations and highlight the limitations inherent in using historical data to manage risk.

We may be unable to attract and retain key personnel.

Our success depends, in large part, on our ability to attract and retain key personnel. Competition for qualified personnel in the financial services industry can be intense and we may not be able to hire or retain the key personnel that we depend upon for success. The unexpected loss of services of one or more of our key personnel could have a material adverse impact on our business because of their skills, knowledge of the markets in which we operate, years of industry experience and the difficulty of promptly finding qualified replacement personnel.

We could be held responsible for environmental liabilities of properties we acquired through foreclosure.

In the course of business, we may acquire, through foreclosure, properties securing loans originated or purchased that are in default. Particularly in commercial real estate lending, there is a risk that material environmental violations could be discovered on these properties. In this event, we might be required to remedy these violations at the affected properties at our sole cost and expense. The cost of remedial action could substantially exceed the value of affected properties. We may not have adequate remedies against the prior owner or other responsible parties and could find it difficult or impossible to sell the affected properties. These events could have an adverse effect on our financial condition and results of operations.

We may be required to write down goodwill and other identifiable intangible assets.

When we acquire a business, a portion of the purchase price of the acquisition may be allocated to goodwill and other identifiable intangible assets. The excess of the purchase price over the fair value of the net identifiable tangible and intangible assets acquired determines the amount of the purchase price that is allocated to goodwill acquired. At December 31, 2017, our goodwill and other identifiable intangible assets totaled $99.7 million, which included goodwill and core deposit intangible assets created in connection with the SBM acquisition on October 16, 2015 of $49.9 million and $6.6 million, respectively. Under current accounting standards, if we determine goodwill or intangible assets are impaired, we would be required to write down the value of these assets to fair value. We conduct an annual review, or more frequently if events or circumstances warrant such, to determine whether goodwill is impaired. We recently completed our goodwill impairment analysis as of November 30, 2017 and concluded goodwill was not impaired. We conduct a review of our other intangible assets for impairment should events or circumstances warrant such. There were no triggers for such review for impairment for other intangible assets for the year ended December 31, 2017. We cannot provide assurance that we will not be required to take an impairment charge in the future. Any impairment charge would have a negative effect on our shareholders’ equity and financial results and may cause a decline in our stock price.

17

Systems failures, interruptions or breaches of security concerning ourinformation base, including the information we maintain relating to our customers, could have an adverse effect on our financial condition and results of operations.

In the ordinary course of business, we rely on electronic communications and information systems to conduct our business and to store sensitive data, including financial information regarding customers. We are subject to certain operational risks, including, but not limited to, data processing system failures and errors, inadequate or failed internal processes, customer or employee fraud, cyberattacks, hacking, identity theft and catastrophic failures resulting from terrorist acts or natural disasters. We depend upon data processing, software, communication, and information exchange on a variety of computing platforms and networks and over the internet, and we rely on the services of a variety of vendors to meet our data processing and communication needs. Despite instituted safeguards, we cannot be certain that all of our systems are entirely free from vulnerability to attack or other technological difficulties or failures. Information security risks have increased significantly due to the use of online, telephone and mobile banking channels by customers and the increased sophistication and activities of organized crime, hackers, terrorists and other external parties. Our technologies, systems, networks and our customers’ devices may be the target of, cyber-attacks, computer viruses, malicious code, phishing attacks or information security breaches that could result in the unauthorized release, gathering, monitoring, misuse, loss or destruction of our or our customers’ confidential, proprietary and other information, the theft of customer assets through fraudulent transactions or disruption of our or our customers’ or other third parties’ business operations. If information security is breached or other technology difficulties or failures occur, information may be lost or misappropriated, services and operations may be interrupted and we could be exposed to claims from customers. While we maintain a system of internal controls and procedures, any of these results could have a material adverse effect on our business, financial condition, results of operations or liquidity.

We regularly assess and test our security systems and disaster preparedness, including back-up systems, but the risks are substantially escalating. As a result, cybersecurity and the continued enhancement of our controls and processes to protect our systems, data and networks from attacks, unauthorized access or significant damage remain a priority. We may be required to expend significant additional resources to modify our protective measures or to investigate and remediate vulnerabilities or other exposures in our computer systems and networks, and we may be subject to litigation and financial losses that are either not insured against or not fully covered through insurance maintained by us. Any such losses, which may be difficult to detect, could adversely affect our financial condition or results of operations. In addition, the occurrence of such a loss could expose the Company and the Bank to reputational risk, the loss of customer business and additional regulatory scrutiny.

We must adapt to information technology changes in the financial services industry, which could present operational issues, require significant capital spending, or impact our reputation.

The financial services industry is constantly undergoing technological changes, with frequent introductions of new technology-driven products and services. We invest significant resources in information technology system enhancements in order to provide functionality and security at an appropriate level. The effective use of technology increases efficiency and enables financial institutions to better serve customers and reduce costs. Our future success will depend, in part, upon our ability to address the needs of our customers by using technology to provide products and services that will satisfy customer demands for convenience, as well as to create additional efficiencies in our operations. We may not be able to effectively implement new technology-driven products and services or be successful in marketing these products and services to our customers. Failure to successfully implement and integrate future system enhancements could adversely impact the ability to provide timely and accurate financial information in compliance with legal and regulatory requirements, which could result in sanctions from regulatory authorities. Such sanctions could include fines and suspension of trading in our stock, among others. In addition, future system enhancements could have higher than expected costs and/or result in operating inefficiencies, which could increase the costs associated with the implementation as well as ongoing operations.

Failure to properly utilize system enhancements that are implemented in the future could result in impairment charges that adversely impact our financial condition and results of operations and could result in significant costs to remediate or replace the defective components. In addition, we may incur significant training, licensing, maintenance, consulting and amortization expenses during and after systems implementations, and any such costs may continue for an extended period of time.

We rely on other companies to provide key components of our business infrastructure.

Third party vendors provide key components of our business infrastructure such as internet connections, network access and core application processing. While we have selected these third party vendors carefully, we do not control their actions. Any problems caused by these third parties, including as a result of their not providing us their services for any reason or their performing their services poorly, could adversely affect our ability to deliver products and services to our customers or otherwise conduct our business efficiently and effectively. Replacing these third party vendors could also entail significant delay and expense.

18

Natural disasters, acts of terrorism and other external events could harm our business.

Natural disasters can disrupt our operations, result in damage to our properties, reduce or destroy the value of the collateral for our loans and negatively affect the economies in which we operate, which could have a material adverse effect on our results of operations and financial condition. A significant natural disaster, such as a tornado, hurricane, earthquake, fire or flood, could have a material adverse impact on our ability to conduct business, and our insurance coverage may be insufficient to compensate for losses that may occur. Acts of terrorism, war, civil unrest, violence or human error could cause disruptions to our business or the economy as a whole. While we have established and regularly test disaster recovery procedures, the occurrence of any such event could have a material adverse effect on our business, operations and financial condition.

Camden National Wealth Management may be negatively affected by changes in economic and market conditions.

A substantial portion of income from fiduciary services is dependent on the market value of wealth management assets under administration, which are primarily marketable securities. Changes in domestic and foreign economic conditions, volatility in financial markets, and general trends in business and finance, all of which are beyond our control, could adversely impact the market value of these assets and the fee revenues derived from the management of these assets.

Due to strong competition, Camden National Wealth Management may not be able to attract and retain clients at current levels. Competition is strong as there are numerous well-established and successful investment management and wealth advisory firms including commercial banks and trust companies, investment advisory firms, mutual fund companies, stock brokerage firms, and other financial companies. Our ability to attract and retain wealth management clients is dependent upon our ability to compete with competitors’ investment products, level of investment performance, client services, and marketing and distribution capabilities. If we are not successful, our results of operations and financial condition may be negatively impacted.

If we do not maintain net income growth, the market price of our common stock could be adversely affected.

Our return on shareholders’ equity and other measures of profitability, which affect the market price of our common stock, depend in part on our continued growth and expansion. Our growth strategy has two principal components: internal growth and external growth. Our ability to generate internal growth is affected by the competitive factors described below as well as by the primarily rural characteristics and related demographic features of the markets we serve. Our ability to continue to identify and invest in suitable acquisition candidates on acceptable terms is an important component of our external growth strategy. In pursuing acquisition opportunities, we may be in competition with other companies having similar growth strategies. As a result, we may not be able to identify or acquire promising acquisition candidates on acceptable terms. Competition for these acquisitions could result in increased acquisition prices and a diminished pool of acquisition opportunities. An inability to find suitable acquisition candidates at reasonable prices could slow our growth rate and have a negative effect on the market price of our common stock.

We are a holding company and dependent upon our subsidiary for dividends, distributions and other payments.

We are a legal entity separate and distinct from our direct and indirect subsidiaries. Our revenue (on a parent-only basis) is derived primarily from interest and dividends paid to us by the Bank. Our right, and consequently the right of our shareholders, to participate in any distribution of the assets or earnings of the Bank through the payment of such dividends or otherwise is necessarily subject to the prior claims of creditors of the Bank (including depositors), except to the extent that certain claims of us in a creditor capacity may be recognized.

Holders of our common stock are entitled to receive dividends only when, and if declared by our Board of Directors. Although we have historically declared cash dividends on our common stock, we are not required to do so and our Board of Directors may reduce or eliminate our common stock dividend in the future. The FRB has authority to prohibit bank holding companies from paying dividends if such payment is deemed to be an unsafe or unsound practice. Additionally, the OCC has the authority to use its enforcement powers to prohibit a bank from paying dividends if, in its opinion, the payment of dividends would constitute an unsafe or unsound practice. Further, our ability to pay dividends would be restricted under current regulatory capital rules if we do not maintain a capital conservation buffer. A reduction or elimination of dividends could adversely affect the market price of our common stock. See Part I, Item 1. “Business-Supervision and Regulation-Dividend Restrictions” and “Business-Supervision and Regulation-Regulatory Capital Requirements.”

Changes in accounting standards can be difficult to predict and can materially impact how we record and report our financial condition and results of operations.

19

Our accounting policies and methods are fundamental to how we record and report our financial condition and results of operations. From time to time, the FASB changes the financial accounting and reporting standards that govern the preparation of our financial statements. These changes can be hard to anticipate and implement and can materially impact how we record and report our financial condition and results of operations. For example, the FASB’s recently issued financial instruments standard will, among other things, significantly change how loan loss provisions are determined once effective from an incurred loss model to an expected loss model.

Changes in tax laws and regulations and differences in interpretation of tax laws and regulations may adversely impact our financial statements.

Local, state or federal tax authorities may interpret tax laws and regulations differently than we do and challenge tax positions that we have taken on tax returns. This may result in differences in the treatment of revenues, deductions, credits and/or differences in the timing of these items. The differences in treatment may result in payment of additional taxes, interest or penalties that could have a material adverse effect on our results.

In December 2017, we recognized a write-down of $14.3 million to our net deferred tax assets in connection with the adoption of the Tax Cuts and Jobs Act.

Our financial statements are based in part on assumptions and estimates, which, if wrong, could cause unexpected losses in the future.

Pursuant to U.S. generally accepted accounting principles, we are required to use certain assumptions and estimates in preparing our financial statements, including in determining credit loss reserves, reserves related to litigation and the fair value of certain assets and liabilities, among other items. If assumptions or estimates underlying our financial statements are incorrect, we may experience material losses. For additional information, see Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies.

Continued market volatility may impact our business and the value of our common stock.

Our business performance and the trading price of shares of our common stock may be affected by many factors affecting financial institutions, including volatility in the credit, mortgage and housing markets, the markets for securities relating to mortgages or housing, and the value of debt and mortgage-backed and other securities that we hold in our investment portfolio. Government action and legislation may also impact us and the value of our common stock. We cannot predict what impact, if any, volatility will have on our business or share price and for these and other reasons our shares of common stock may trade at a price lower than that at which they were purchased.

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Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

At December 31, 2017, the Company owns or leases a total of 64 facilities, excluding any properties designated as other real estate owned. All facilities are fully utilized and considered suitable and adequate for the purposes intended. The Company owns 42 of its facilities, none of which are subject to a mortgage, and the remaining branches and loan offices are leased by the Company. The Company has 60 branches located throughout Maine, and two loan production offices located in New Hampshire and Massachusetts.

The following table presents the Company's materially important locations and properties as of December 31, 2017:

Facility Name	Location	General Character of the Physical Property	Primary Business Segment	Property Status	Property Square Feet(1)
Main Office	Camden, Maine	3 story building	Branch and principal executive office	Owned	15,500
Canal Plaza	Portland, Maine	2 floors	Branch and executive office	Leased	16,355
Hanley Center	Rockport, Maine	2 story building	Service center	Owned	32,360
Gardiner	Gardiner, Maine	3 story building	Branch and service center	Owned	17,497
Kennebunk	Kennebunk, Maine	2 story building	Branch and service center	Owned	9,982
Auburn	Auburn, Maine	3 story building	Branch	Owned	13,000
Bangor	Bangor, Maine	1 floor	Branch	Leased	17,432
Ellsworth	Ellsworth, Maine	3 story building	Branch	Owned	44,000	(2)
Rockland	Rockland, Maine	3 story building	Branch	Owned	21,600
Waterville	Waterville, Maine	3 story building	Branch	Owned	17,099

(1) Total square footage for leased locations represents the amount of space the Company occupies.

(2) Includes space leased to third parties.

For additional information regarding the Company's premises and equipment and lease obligations see Note 7, Premises and Equipment, within Item 8. Financial Statements and Supplementary Data.

Item 3. Legal Proceedings

Various legal claims arise from time to time in the normal course of the Company’s business, which in our opinion, are not expected to have a material effect on our consolidated financial statements.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

The Company’s common stock is currently traded on the NASDAQ Global Market (“NASDAQ”) under the ticker symbol “CAC.” The Company has paid quarterly dividends since its foundation in 1984. The high and low closing sales prices (as quoted by NASDAQ for 2017 and 2016) and cash dividends declared per share of the Company’s common stock, by calendar quarter for the past two years, were as follows:

	2017						2016
	Market Price				Dividends Declared per Share		Market Price				Dividends Declared per Share
	High		Low				High		Low
First Quarter	$	44.82	$	40.14	$	0.23	$	28.87	$	25.09	$	0.20
Second Quarter	$	44.12	$	40.20	$	0.23	$	29.17	$	26.97	$	0.20
Third Quarter	$	44.40	$	37.33	$	0.23	$	32.32	$	27.91	$	0.20
Fourth Quarter	$	47.00	$	41.70	$	0.25	$	45.24	$	29.70	$	0.23

As of February 23, 2018, there were 15,536,923 shares of the Company’s common stock outstanding by approximately 1,200 shareholders, as obtained through our transfer agent. Such number of shareholders does not reflect the number of persons or entities holding stock in nominee name through banks, brokerage firms and other nominees.

Although the Company has historically paid quarterly dividends on its common stock, the Company’s ability to pay such dividends depends on a number of factors, including restrictions under federal laws and regulations on the Company’s ability to pay dividends, and as a result, there can be no assurance that dividends will be paid in the future. For further information on dividend restrictions, refer to Item 1. Business—Supervision and Regulation and Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Capital Resources.

The following graph illustrates the annual percentage change in the cumulative total shareholder return of the Company’s common stock for the period December 31, 2012 through December 31, 2017. For purposes of comparison, the graph illustrates comparable shareholder returns of the SNL $1B – $5B Bank Index and the Russell 2000 Stock Index. The graph assumes a $100 investment on December 31, 2012 in each case and measures the amount by which the market value, assuming reinvestment of dividends, has changed as of December 31, 2017.

Stock Performance Graph

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On September 24, 2013, the Board of Directors authorized a common stock repurchase program (the "2013 Repurchase Plan"). The 2013 Repurchase Plan allows for the repurchase of up to 375,000 shares of the Company’s outstanding common stock. This program is expected to continue until the authorized number of shares is repurchased, or the Company’s Board of Directors terminates the program. There is no specified expiration date of the 2013 Repurchase Plan. As of December 31, 2017, the Company had repurchased 374,250 shares at an average price of $26.55, or 99.8% of the program’s total allotment and 2.4% of total outstanding shares. The Company did not repurchase any shares of Company common stock for the year ended December 31, 2017.

Issuer's Purchases of Equity Securities
Period	Total number of shares (or units) purchased	Average price paid per share (or unit)		Total number of shares (or units) purchased as part of publicly announced plans or programs	Maximum number (or appropriate dollar value) of shares (or units) that may yet be purchased under the plans or programs
01/01/2017 to 12/31/2017	—	—		—	750
Total	—	$	—	—	750

Other information required by this item is incorporated by reference to Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

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Item 6. Selected Financial Data

The selected consolidated financial and other data of the Company set forth below does not purport to be complete and should be read in conjunction with, and is qualified in its entirety by, the more detailed information, including the consolidated financial statements and related notes, appearing elsewhere herein.

	At or For The Year Ended December 31,
(In Thousands, Except per Share Data)	2017(1)			2016			2015(2)			2014			2013
Financial Condition Data
Investments	$	907,642		$	897,679		$	855,995		$	803,633		$	828,201
Loans and loans held for sale	2,790,542			2,609,400			2,501,164			1,772,610			1,580,402
Allowance for loan losses	(24,171		)	(23,116		)	(21,166		)	(21,116		)	(21,590		)
Total assets	4,065,398			3,864,230			3,709,344			2,789,853			2,603,829
Deposits	3,000,491			2,828,529			2,726,379			1,932,097			1,813,824
Borrowings	611,498			599,675			572,362			577,002			530,092
Shareholders’ equity	403,413			391,547			363,190			245,109			231,096
Operating Data
Net interest income	$	115,300		$	113,072		$	86,452		$	76,257		$	75,441
Provision for credit losses	3,035			5,258			1,936			2,220			2,028
Non-interest income	38,599			39,621			27,482			24,370			27,835
Non-interest expense	88,510			89,896			81,139			62,397			66,333
Income before income taxes	62,354			57,539			30,859			36,010			34,915
Income taxes	33,878			17,472			9,907			11,440			12,132
Net income	$	28,476		$	40,067		$	20,952		$	24,570		$	22,783
Ratios
Return on average assets	0.71		%	1.04		%	0.70		%	0.92		%	0.88		%
Return on average equity	7.00		%	10.47		%	7.54		%	10.37		%	9.74		%
Net interest margin (fully-taxable equivalent)	3.23		%	3.32		%	3.19		%	3.11		%	3.20		%
Tier I leverage capital ratio	9.07		%	8.83		%	8.74		%	9.26		%	9.43		%
Total risk-based capital ratio	14.14		%	14.04		%	12.98		%	15.16		%	16.45		%
Non-performing assets to total assets	0.50		%	0.67		%	0.66		%	0.82		%	1.18		%
Dividend payout ratio	51.43		%	32.22		%	50.60		%	33.73		%	36.30		%
Per common share data
Basic earnings per share	$	1.83		$	2.59		$	1.73		$	2.19		$	1.98
Diluted earnings per share	1.82			2.57			1.73			2.19			1.98
Dividends declared per share	0.94			0.83			0.80			0.74			0.72
Book value per share	25.99			25.30			23.69			22.00			20.33
Non-GAAP measures(3)
Adjusted net income	$	42,739		$	40,630		$	28,189		$	24,570		$	24,074
Adjusted diluted earnings per share	2.73			2.61			2.33			2.19			2.09
Tangible book value per share	19.57			18.74			16.89			17.68			15.99
Efficiency ratio	57.05		%	57.53		%	61.13		%	61.58		%	62.78		%
Adjusted return on average assets	1.07		%	1.06		%	0.94		%	0.92		%	0.94		%
Return on average tangible equity	9.69		%	14.76		%	9.91		%	13.46		%	14.55		%
Adjusted return on average tangible equity	14.35		%	14.95		%	13.20		%	13.30		%	13.42		%
Tangible common equity ratio	7.66		%	7.71		%	7.18		%	7.18		%	7.12		%

(1) In December 2017, the Tax Cuts and Jobs Act of 2017 was enacted, and the Company recognized a $14.3 million write-down of its deferred tax assets and liabilities upon revaluation using the lower federal corporate income tax rate of 21.0%.

(2) On October 16, 2015, the Company completed its acquisition of SBM. The impact of the acquisition is included within the presented financial data and results as of and for the year ended December 31, 2015.

(3) Refer to Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations—Non-GAAP Financial Measures and Reconciliation to GAAP for discussion and reconciliations of non-GAAP measures.

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The discussion below focuses on the factors affecting our consolidated results of operations for the year ended

December 31, 2017, 2016 and 2015 and financial condition at December 31, 2017 and 2016 and, where appropriate, factors that may affect our future financial performance, unless stated otherwise. The dollar amounts within the tables are presented in thousands, except per share data. This discussion should be read in conjunction with the consolidated financial statements, notes to the consolidated financial statements and selected consolidated financial data.

Acronyms and Abbreviations

The acronyms and abbreviations identified below are used throughout Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations. The following is provided to aid the reader and provide a reference page when reviewing this section of the Form 10-K.

AFS:	Available-for-sale	HPFC:	Healthcare Professional Funding Corporation, a wholly-owned subsidiary of Camden National Bank
ALCO:	Asset/Liability Committee	HTM:	Held-to-maturity
ALL:	Allowance for loan losses	IRS:	Internal Revenue Service
AOCI:	Accumulated other comprehensive income (loss)	LIBOR:	London Interbank Offered Rate
ASC:	Accounting Standards Codification	LTIP:	Long-Term Performance Share Plan
ASU:	Accounting Standards Update	Management ALCO:	Management Asset/Liability Committee
Bank:	Camden National Bank, a wholly-owned subsidiary of Camden National Corporation	MBS:	Mortgage-backed security
BOLI:	Bank-owned life insurance	MSPP:	Management Stock Purchase Plan
Board ALCO:	Board of Directors' Asset/Liability Committee	N.M.:	Not meaningful
CCTA:	Camden Capital Trust A, an unconsolidated entity formed by Camden National Corporation	OCC:	Office of the Comptroller of the Currency
CDs:	Certificate of deposits	OCI:	Other comprehensive income (loss)
Company:	Camden National Corporation	OREO:	Other real estate owned
CMO:	Collateralized mortgage obligation	OTTI:	Other-than-temporary impairment
DCRP:	Defined Contribution Retirement Plan	SBM:	SBM Financial, Inc., the parent company of The Bank of Maine
EPS:	Earnings per share	SERP:	Supplemental executive retirement plans
FASB:	Financial Accounting Standards Board	Tax Act:	Tax Cuts and Jobs Act of 2017, enacted on December 22, 2017
FDIC:	Federal Deposit Insurance Corporation	TDR:	Troubled-debt restructured loan
FHLB:	Federal Home Loan Bank	UBCT:	Union Bankshares Capital Trust I, an unconsolidated entity formed by Union Bankshares Company that was subsequently acquired by Camden National Corporation
FHLBB:	Federal Home Loan Bank of Boston	U.S.:	United States of America
FRB:	Federal Reserve System Board of Governors	2003 Plan:	2003 Stock Option and Incentive Plan
FRBB:	Federal Reserve Bank of Boston	2012 Plan:	2012 Equity and Incentive Plan
GAAP:	Generally accepted accounting principles in the United States

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Executive Overview

For the year ended December 31, 2017, we reported net income of $28.5 million and diluted EPS of $1.82 per share, compared to $40.1 million and $2.57 per share, respectively, for the year ended December 31, 2016. In the fourth quarter of 2017, the Tax Act was enacted, and we recognized $14.3 million of additional income tax expense upon the revaluation of our deferred tax assets and liabilities. For the year ended December 31, 2017, our adjusted net income¹, which excludes the effect of the Tax Act, was $42.7 million and adjusted diluted EPS¹ was $2.73 per share, representing an increase over 2016 of 5%.

Our strong financial performance in 2017 was driven by:

• Loan Growth of 7%— Our loan portfolio grew 7% to $2.8 billion at December 31, 2017, led by commercial real estate loan growth of 11%, followed by residential mortgage growth of 7% and commercial loan growth of 6%.

• Low Cost Deposit Growth of 11% — Our total deposit base grew 6% to $3.0 billion at December 31, 2017, led by low cost deposits (demand, interest checking, savings and money market) growth of 11%.

• Strong Asset Quality — Strong asset quality metrics resulted in a 42% decrease in our provision for credit losses to $3.0 million for 2017. Our non-performing assets to total assets ratio decreased to 0.50% at December 31, 2017, compared to 0.67% at December 31, 2016, while our net charge-offs to average loans ratio for 2017 of 0.07%, compared to 0.13% for 2016.

In the fourth quarter of 2017, we increased our quarterly cash dividend 9% to $0.25 per share, which was paid to our shareholders on January 31, 2018. For 2017, we declared cash dividends to our shareholders of $0.94 per share, compared to $0.83 per share in 2016. The increase in our fourth quarter 2017 dividend rate to shareholders reflects our strong financial performance in 2017 and the overall financial strength, which includes exceeding all regulatory capital standards and a tangible common equity ratio¹ of 7.66% at December 31, 2017.

Our 2016 reported financial results included the full year benefit of the acquisition of SBM that was completed on October 16, 2015, driving a 44% increase in adjusted net income¹ and 12% increase in adjusted diluted EPS¹, compared to 2015.

______________________________________________________________________________________________________

1 The following was not calculated in accordance with GAAP. Refer to the "— Non-GAAP Financial Measures and Reconciliation to GAAP" within Item 7.

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Operating Results

Net income for the year ended December 31, 2017 was $28.5 million, representing a decrease of $11.6 million, or 29%, compared to last year. The decrease was driven by additional income tax expense of $14.3 million upon enactment of the Tax Act on December 22, 2017 as a result of revaluing our deferred tax assets and liabilities using the lower federal corporate tax rate. Adjusted net income¹, which excludes certain non-recurring transactions, including the impact of the Tax Act, for the year ended December 31, 2017 was $42.7 million, representing an increase of $2.1 million, or 5%.

______________________________________________________________________________________________________

1 The following was not calculated in accordance with GAAP. Refer to the "— Non-GAAP Financial Measures and Reconciliation to GAAP" within Item 7.

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Diluted EPS for the year ended December 31, 2017 was $1.82 per share, representing a decrease of $0.75 per share, or 29%, compared last year. Adjusted diluted EPS¹ for the year ended December 31, 2017 was $2.73 per share, representing an increase of $0.12 per share, or 5% over 2016.

For the year ended December 31, 2017, our efficiency ratio¹ was 57.05%, adjusted return on average assets¹ was 1.07%, and our adjusted return on average tangible equity¹ was 14.35%.

Net income for the year ended December 31, 2016 was $40.1 million and diluted EPS was $2.57 per share, representing an increase of 91% and 49%, respectively. Adjusted net income¹ and adjusted diluted EPS¹ of $40.6 million and $2.61 increased 44% and 12%, respectively, over 2015. The increase highlights the benefits of the acquisition of SBM and our successful execution of our merger strategies, including an efficiency ratio¹ of 57.53%, an adjusted return on average assets¹ of 1.06%, and an adjusted return on average tangible equity¹ of 14.96% for 2016.

FINANCIAL CONDITION

Total assets at December 31, 2017 of $4.1 billion increased $201.2 million, or 5%, since December 31, 2016 driven by loan growth of $187.9 million, or 7%, for the year.

______________________________________________________________________________________________________

1 The following was not calculated in accordance with GAAP. Refer to the "— Non-GAAP Financial Measures and Reconciliation to GAAP" within Item 7.

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For 2017, our loan growth was driven by commercial real estate with growth of $113.2 million, or 11%, followed by residential real estate of $55.9 million, or 7%, and commercial of $39.8 million, or 12%.

At December 31, 2017, our commercial loan portfolio (includes commercial real estate and commercial loans) totaled $1.6 billion and represented 57% of total loans, whereas our retail loan portfolio (includes residential real estate, consumer and home equity) totaled $1.2 billion and represented 43% of total loans. In comparison, at December 31, 2016, our commercial loan portfolio represented 56% of total loans, while our retail loan portfolio represented 44% of total loans.

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Total deposits at December 31, 2017 grew $172.0 million, or 6%, over last year to $3.0 billion. The increase in deposits was driven by low cost deposits growth (including demand, interest checking, saving and money market) of $232.0 million, or 11% to $2.3 billion.

At December 31, 2017, low cost deposits as a percentage of total funding was 64%, compared to 61% at December 31, 2016 and our loan-to-deposit ratio was 93% at December 31, 2017, compared to 92% at December 31, 2016.

Critical Accounting Policies

Critical accounting policies are defined as those that are reflective of significant judgments and uncertainties, and could potentially result in materially different results under different assumptions and conditions. In preparing the Company’s consolidated financial statements, management is required to make significant estimates and assumptions that affect assets, liabilities, revenues, and expenses reported. Actual results could materially differ from our current estimates, as a result of changing conditions and future events. Several estimates are particularly critical and are susceptible to significant near-term change, including (i) the allowance for loan losses; (ii) accounting for acquisitions and the subsequent review of goodwill and core deposit intangible assets generated in an acquisition for impairment; (iii) OTTI of investments; and (iv) income taxes.

Allowance for Loan Losses. Management is committed to maintaining an ALL that is appropriate to absorb likely loss exposure in the loan portfolio. Evaluating the appropriateness of the ALL is a key management function and one that requires the most significant amount of management estimates and assumptions. The ALL, which is established through a charge to the provision for credit losses, consists of two components: (i) a reduction to total gross loans in the asset section of the consolidated statements of condition, and (ii) the reserve for unfunded commitments included in other liabilities on the consolidated statements of condition. We regularly evaluate the ALL for adequacy by taking into consideration, among other factors, historical trends in charge-offs and delinquencies, overall risk characteristics and size of the portfolios, ongoing review of significant individual loans, trends in levels of watched or criticized assets, business and economic conditions, local industry trends, regulatory guidance, and other relevant factors.

In determining the appropriate level of ALL, we use a methodology to systematically measure the amount of estimated loan loss exposure inherent in the loan portfolio. The methodology focuses on three key elements: (i) identification of loss allocations for specific loans, (ii) loss allocation factors for certain loan types based on credit grade and loss experience, and (iii) general loss allocations for other qualitative and environmental factors.

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Loans for which a specific loss allocation may be required are identified and assessed at least quarterly by reviewing individual loans with a principal balance of $500,000 or more that are risk rated as substandard or doubtful and are on non-accrual status in accordance with the Bank's policy. We believe loans that meet the above criteria most often demonstrate the qualities and characteristics of an impaired loan and are individually significant enough to the Company to warrant individual assessment. Prior to January 1, 2017, we individually identified and evaluated specific impaired loans that had a loan principal balance of $250,000 or more that were risk rated as substandard or doubtful and are on non-accrual status in accordance with the Bank's policy. An allowance is established for each of these loans to reduce the net carrying value when the estimated value of the impaired loan is lower than the recorded investment of the loan. The estimated value of the impaired loans is determined using one of three methods: (i) calculating the present value of expected future cash flows discounted at the loan's effective interest rate (i.e. discounted cash flow method); (ii) the loan's observable market price; or (iii) the fair value of the collateral if the loan is collateral dependent and repayment of the loan is expected to be provided solely by the underlying collateral.

The remaining loan portfolio is separated into risk pools by portfolio segment and subject to a general reserve factor. At least annually, we reassess and revise the loss allocation factor used in constructing the reserve for each risk pool. The factors we consider in constructing each risk pool include: (i) risk rating; (ii) historical losses; (iii) market conditions; and (iv) other environmental factors.

In assessing the risk rating of a particular loan, we consider, among other factors, the obligor’s debt capacity, financial condition, the level of the obligor’s earnings, the amount and sources of repayment, the performance with respect to loan terms, the adequacy of collateral, the level and nature of contingent liabilities, management strength, and the industry in which the obligor operates. These factors are based on an evaluation of historical information, as well as a subjective assessment and interpretation of current conditions. Emphasizing one factor over another, or considering additional factors that may be relevant in determining the risk rating of a particular loan but which are not currently an explicit part of our methodology, could impact the risk rating assigned to that loan.

Three times a year, management conducts a thorough review of adversely risk rated commercial and commercial real estate exposures exceeding certain thresholds to re-evaluate the risk rating and identify impaired loans. This extensive review takes into account the obligor’s repayment history and financial condition, collateral value, guarantor support, local economic and industry trends, and other factors relevant to the particular loan relationship.

Because the methodology is based upon historical experience and trends as well as management’s judgment, factors may arise that result in different estimations. Significant factors that could give rise to changes in these estimates may include, but are not limited to, changes in economic conditions in our market area, concentration of risk, declines in local property values, and the results of regulatory examinations. While management’s evaluation of the ALL as of December 31, 2017 determined it to be appropriate, under adversely different conditions or assumptions, we may need to increase the ALL. Monthly, management reviews the ALL to assess recent asset quality trends and impact on the Company's financial condition. Quarterly, the ALL is reviewed and approved at the Bank's Board of Directors meeting.

The adequacy of the reserve for unfunded commitments is determined in a similar manner as the ALL, with the exception that management must also estimate the likelihood of these commitments being funded and becoming loans. This is accomplished by evaluating the historical utilization of each type of unfunded commitment and estimating the likelihood that the historical utilization rates could change in the future.

Purchase Price Allocation and Impairment of Goodwill and Identifiable Intangible Assets. We record all acquired assets and liabilities at fair value, which is an estimate determined by the use of internal valuation techniques. We also may engage external valuation services to assist with the valuation of material assets and liabilities acquired, including, but not limited to, loans, core deposit intangibles and/or other intangible assets, real estate and time deposits. As part of purchase accounting, we typically acquire goodwill and other intangible assets as part of the purchase price. These assets are subject to ongoing periodic impairment tests under differing accounting models. We did not acquire any other company or assets for the year ended December 31, 2017 or 2016.

Goodwill impairment evaluations are required to be performed at least annually, but may be required more frequently if certain conditions indicate a potential impairment may exist. Our policy is to perform the goodwill impairment analysis annually as of November 30^th, or more frequently as warranted. The goodwill impairment evaluation is required to be performed at the reporting unit level and is performed using the two-step process outlined in ASC 350-20, Goodwill ("ASC 350-20"). The Company's reporting units are banking and financial services. The banking reporting unit is representative of our core banking business line, while the financial services reporting unit is representative of our wealth management and trust services business line.

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For the year ended December 31, 2017, we performed the annual impairment tests for each reporting unit as of November 30, 2017. For the banking reporting unit, we used the qualitative analysis (i.e. "step zero") outlined in ASC 350-20 to test the reporting unit's goodwill for impairment, and considered such factors as the macroeconomic environment; overall industry environment and performance; company specific factors, including, but not limited to, competition, performance and personnel. Through completion of our analysis, we concluded it was not more-likely-than-not that the banking reporting unit's carrying value exceeded its fair value. For the financial services reporting unit, we used the quantitative analysis (i.e. "step one") outlined in ASC 350-20 to test the reporting unit's goodwill for impairment. In doing so, we concluded that the estimated fair value of the financial services reporting unit exceeded its carrying value and goodwill was not impaired as of November 30, 2017. Furthermore, we are not aware of any indications and/or triggers subsequent to our goodwill impairment analysis performed as of November 30, 2017 that would lead us to believe there may be subsequent impairment of goodwill.

For the year ended December 31, 2016, we performed the annual impairment tests for each reporting unit as of November 30, 2016 using quantitative analysis, and concluded that neither reporting unit's goodwill was impaired.

Core deposit intangible assets have a finite life and are amortized over their estimated useful lives. Core deposit intangible assets are subject to impairment tests if events or circumstances indicate a possible inability to realize the carrying amount. Core deposit intangible assets are measured for impairment utilizing a cost recovery model. We did not identify any events or circumstances that occurred for the year ended December 31, 2017 or 2016 that would indicate that our core deposit intangible assets may be impaired and should be evaluated for such.

OTTI of Investments. We record an investment impairment charge at the point we believe an investment has experienced a decline in value that is other-than-temporary. In determining whether an OTTI has occurred, we review information about the underlying investment that is publicly available, analysts’ reports, applicable industry data and other pertinent information, and assess our intent and ability to hold the security for the foreseeable future until recovered. The investment is written down to its current fair value at the time the impairment is deemed to have occurred. Future adverse changes in market conditions, continued poor operating results of underlying investments or other factors could result in further losses that may not be reflected in an investment’s current carrying value, possibly requiring an additional impairment charge in the future.

Income Taxes. We account for income taxes by deferring income taxes based on the estimated future tax effects of differences between the book and tax bases of assets and liabilities considering the provisions of enacted tax laws. These differences result in deferred tax assets and liabilities, which are included in the consolidated statements of condition. We must also assess the likelihood that any deferred tax assets will be recovered from future taxable income and establish a valuation allowance for those assets determined not likely to be recoverable. Judgment is required in determining the amount and timing of recognition of the resulting deferred tax assets and liabilities, including projections of future taxable income. Although we have determined a valuation allowance is not required for our deferred tax assets, there is no guarantee that these assets will be realized.

On December 22, 2017, the Tax Act was enacted reducing the federal corporate income tax rate from 35.0% to 21.0%, effective January 1, 2018. In accordance with ASC 740, Income Taxes, we revalued our deferred tax assets and liabilities as of the enactment date, and, as a result, we recorded additional income tax expense for the year ended December 31, 2017 of $14.3 million. Refer to "—Results of Operations—Income Tax Expense" for further discussion.

As of December 31, 2017, our federal income tax returns for the year ended December 31, 2016 and 2015 were open to audit by federal authorities, and our state income tax returns for the year ended December 31, 2016, 2015 and 2014 were open to audit by various state authorities. If, as a result of an audit, we were assessed interest and penalties, the amounts would be recorded through other non-interest expense on the consolidated statements of income.

In 2017, the IRS completed its examination of our 2014 and 2013 federal income tax returns, which resulted in no material changes to the Company's consolidated financial statements.

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Non-GAAP Financial Measures and Reconciliation to GAAP

In addition to evaluating the Company’s results of operations in accordance with GAAP, management supplements this evaluation with an analysis of certain non-GAAP financial measures, such as adjusted net income, adjusted diluted EPS, adjusted return on average assets, adjusted return on average equity and average tangible equity; the efficiency ratio; tax equivalent net interest income; tangible book value per share; and tangible common equity ratio. We utilize these non-GAAP financial measures for purposes of measuring our performance against our peer group and other financial institutions and analyzing our internal performance. We also believe these non-GAAP financial measures help investors better understand the Company’s operating performance and trends and allow for better performance comparisons to other banks. In addition, these non-GAAP financial measures remove the impact of unusual items that may obscure trends in the Company’s underlying performance. These disclosures should not be viewed as a substitute for GAAP operating results, nor are they necessarily comparable to non-GAAP performance measures that may be presented by other financial institutions.

Adjusted Net Income, Adjusted Diluted EPS and Adjusted Return on Average Assets. The following tables provide a reconciliation of net income, diluted EPS, and return on average assets to adjusted net income, adjusted diluted EPS and adjusted return on average assets. Certain transactions have been excluded to calculate adjusted net income, adjusted diluted EPS and adjusted return on average assets. We believe the following adjusted financial metrics assist users of our financial statements with their financial analysis period-over-period as it adjusts for certain non-recurring items.

	For The Year Ended December 31,
	2017			2016			2015			2014			2013
Adjusted Net Income:
Net income, as presented	$	28,476		$	40,067		$	20,952		$	24,570		$	22,783
Add: impact of the Tax Act	14,263			—			—			—			—
Add: merger and acquisition costs and divestiture costs, net of tax(1)	—			563			7,237			—			243
Add: goodwill impairment(1)	—			—			—			—			2,830
Less: gain on branch divestiture and sale(1)	—			—			—			—			(1,782		)
Adjusted net income	$	42,739		$	40,630		$	28,189		$	24,570		$	24,074
Adjusted Diluted EPS:
Diluted EPS, as presented	$	1.82		$	2.57		$	1.73		$	2.19		$	1.98
Impact of adjustments to arrive at adjusted net income	0.91			0.04			0.60			—			0.11
Adjusted diluted EPS	$	2.73		$	2.61		$	2.33		$	2.19		$	2.09
Adjusted Return on Average Assets:
Return on average assets, as presented	0.71		%	1.04		%	0.70		%	0.92		%	0.88		%
Impact of adjustments to arrive at adjusted net income	0.36		%	0.02		%	0.24		%	—		%	0.06		%
Adjusted return on average assets	1.07		%	1.06		%	0.94		%	0.92		%	0.94		%

(1) Assumed a 35% tax rate for deductible expenses, with the exception of goodwill impairment as this was a non-taxable event.

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Adjusted Return on Average Equity and Average Tangible Equity. The following tables provide a reconciliation of net return on average equity to adjusted return on average equity and average tangible equity. Certain transactions have been excluded to calculate adjusted return on average equity and tangible equity. We believe the following adjusted financial metrics assist users of our financial statements with their financial analysis period-over-period as it adjusts for certain non-recurring items.

	For The Year Ended December 31,
	2017			2016			2015			2014			2013
Net income, as presented	$	28,476		$	40,067		$	20,952		$	24,570		$	22,783
Add: impact of the Tax Act	14,263			—			—			—			—
Add: merger and acquisition costs and divestiture costs, net of tax(1)	—			563			7,237			—			243
Add: goodwill impairment(1)	—			—			—			—			2,830
Less: gain on branch divestiture and sale(1)	—			—			—			—			(1,782		)
Adjusted net income	$	42,739		$	40,630		$	28,189		$	24,570		$	24,074
Add: amortization of intangible assets, net of tax(1)	1,176			1,237			849			746			747
Add: goodwill impairment(1)	—			—			—			—			2,830
Adjusted tangible net income	43,915			41,867			29,038			25,316			27,651
Average equity	$	406,628		$	382,507		$	277,716		$	236,849		$	233,888
Less: average goodwill and other intangible assets	(100,513		)	(102,711		)	(57,833		)	(48,735		)	(52,708		)
Average tangible equity	$	306,115		$	279,796		$	219,883		$	188,114		$	181,180
Adjusted return on average tangible equity	14.35		%	14.96		%	13.21		%	13.46		%	15.26		%
Adjusted return on average equity	10.51		%	10.62		%	10.15		%	10.37		%	10.29		%
Return on average equity	7.00		%	10.47		%	7.54		%	10.37		%	9.74		%

(1) Assumed a 35.0% tax rate for deductible expenses, with the exception of goodwill impairment as this was a non-taxable event.

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Efficiency Ratio. The efficiency ratio represents an approximate measure of the cost required for the Company to generate a dollar of revenue. This is a common measure within our industry and is a key ratio for evaluating Company performance. The efficiency ratio is calculated as the ratio of (i) total non-interest expense, adjusted for certain operating expenses to (ii) net interest income on a tax equivalent basis (assumed 35% tax rate) plus total non-interest income, adjusted for certain other income items.

	For The Year Ended December 31,
	2017			2016			2015			2014			2013
Non-interest expense, as presented	$	88,510		$	89,896		$	81,139		$	62,397		$	66,333
Less: merger and acquisition costs, and divestiture cost	—			(866		)	(10,415		)	—			(374		)
Less: goodwill impairment	—			—			—			—			(2,830		)
Adjusted non-interest expense	$	88,510		$	89,030		$	70,724		$	62,397		$	63,129
Net interest income, as presented	$	115,300		$	113,072		$	86,452		$	76,257		$	75,441
Add: effect of tax-exempt income	2,105			2,121			1,763			1,157			808
Non-interest income	38,599			39,621			27,482			24,370			27,835
Less: net gains on sale of securities, net of OTTI	(855		)	(51		)	(4		)	(451		)	(785		)
Less: gain on branch divestiture and sale	—			—			—			—			(2,742		)
Adjusted net interest income plus non-interest income	$	155,149		$	154,763		$	115,693		$	101,333		$	100,557
Efficiency ratio	57.05		%	57.53		%	61.13		%	61.58		%	62.78		%
Non-interest expense, as presented, to total revenues(1)	57.51		%	58.87		%	71.22		%	62.01		%	64.23		%

(1) Revenue is defined as net interest income plus non-interest income.

Tax Equivalent Net Interest Income. Tax-equivalent net interest income is net interest income plus the taxes that would have been paid had tax-exempt securities been taxable (assuming a 35% tax rate). This number attempts to enhance the comparability of the performance of assets that have different tax liabilities.

	For The Year Ended December 31,
	2017		2016		2015		2014		2013
Net interest income, as presented	$	115,300	$	113,072	$	86,452	$	76,257	$	75,441
Effect of tax-exempt income	2,105		2,121		1,763		1,157		808
Net interest income, tax equivalent	$	117,405	$	115,193	$	88,215	$	77,414	$	76,249

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Tangible Book Value per Share and Tangible Common Equity Ratio. Tangible book value per share is the ratio of (i) shareholders’ equity less goodwill, premium on deposits and other acquisition-related intangibles (the numerator) to (ii) total common shares outstanding at period end. The following table reconciles tangible book value per share to book value per share. Tangible book value per share is a common measure within our industry when assessing the value of a Company as it removes goodwill and other intangible assets generated within purchase accounting upon a business combination.

Tangible common equity is the ratio of (i) shareholders’ equity less goodwill and other intangible assets (the numerator) to (ii) total assets less goodwill and other intangible assets. This ratio is a measure used within our industry to assess whether or not a company is highly leveraged.

	December 31,
	2017			2016			2015			2014			2013
Tangible Book Value Per Share:
Shareholders' equity, as presented	$	403,413		$	391,547		$	363,190		$	245,109		$	231,096
Less: goodwill and other intangible assets	(99,652		)	(101,461		)	(104,324		)	(48,171		)	(49,319		)
Tangible equity	$	303,761		$	290,086		$	258,866		$	196,938		$	181,777
Shares outstanding at period end	15,524,704			15,476,379			15,330,717			11,139,333			11,369,870
Tangible book value per share	$	19.57		$	18.74		$	16.89		$	17.68		$	15.99
Book value per share	$	25.99		$	25.30		$	23.69		$	22.00		$	20.33
Tangible Common Equity Ratio:
Total assets	$	4,065,398		$	3,864,230		$	3,709,344		$	2,789,853		$	2,603,829
Less: goodwill and other intangibles	(99,652		)	(101,461		)	(104,324		)	(48,171		)	(49,319		)
Tangible assets	$	3,965,746		$	3,762,769		$	3,605,020		$	2,741,682		$	2,554,510
Tangible common equity ratio	7.66		%	7.71		%	7.18		%	7.18		%	7.12		%
Shareholders' equity to total assets	9.92		%	10.13		%	9.79		%	8.79		%	8.88		%

Results of Operations

For the year ended December 31, 2017, we reported net income of $28.5 million compared to $40.1 million for the year ended December 31, 2016 and $21.0 million for the year ended December 31, 2015. Diluted EPS for each of these years was $1.82 per share, $2.57 per share, and $1.73 per share, respectively. The major components of these results, which include net interest income, provision for credit losses, non-interest income, non-interest expense, and income tax expense, are discussed below.

Net Interest Income

Net interest income is interest earned on loans, securities, and other interest-earning assets, plus net loan fees, origination costs and fair value marks on loans and/or time deposits created in purchase accounting, less the interest paid on interest-bearing deposits and borrowings. Net interest income, which is our largest source of revenue, accounted for 75%, 74% and 76% of total revenues (sum of net interest income and non-interest income) for the year end December 31, 2017, 2016 and 2015, respectively. Net interest income is affected by factors including, but not limited to, changes in interest rates, loan and deposit pricing strategies and competitive conditions, loan prepayment speeds, the volume and mix of interest-earning assets and interest-bearing liabilities, and the level of non-performing assets. Net interest margin is calculated as net interest income, on a fully-taxable equivalent basis, as a percentage of average interest-earning assets. Our net interest margin on a fully-taxable equivalent basis for the year ended December 31, 2017, 2016, and 2015 was 3.23%, 3.32%, and 3.19%.

2017 vs. 2016 Net Interest Income. For the year ended December 31, 2017, net interest income on a fully-taxable equivalent basis was $117.4 million, compared to $115.2 million for the year ended December 31, 2016, representing an increase of $2.2 million, or 2%. For the year ended December 31, 2017, we recognized (i) accretion income on our acquired loans and deposits and (ii) recoveries on previously charged-off acquired loans totaling $3.2 million compared to $6.2 million in 2016. Excluding these net interest income items:

• Net interest income on a fully-taxable equivalent basis for the year ended December 31, 2017 was $114.2 million, representing an increase of $5.2 million, or 5% over 2016.

• Net interest margin for the year ended December 31, 2017 decreased 1 basis point to 3.14% compared to 2016.

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Interest income on a fully-taxable equivalent basis for the year ended December 31, 2017 was $138.2 million, representing an increase over 2016 of $6.5 million, or 5%. Our interest income growth in 2017 was primarily driven by an increase in average interest-earning assets of $173.0 million, or 5%, over last year to $3.6 billion. The factors impacting average interest-earnings assets for 2017 compared to 2016 included:

• Commercial real estate and commercial loan growth of $116.4 million, or 12%, and $44.0 million, or 15%, respectively.

• The retail loan portfolio (including residential real estate, consumer and home equity loans) increased less than 1%.

• HPFC loans continue to wind-down after our announcement in 2016 that HPFC is no longer originating loans, and, for 2017, average loan balances decreased $18.2 million to $52.0 million.

• Average investment securities balances increased $29.0 million, or 3%, to $928.6 million.

Our yield on interest-earning assets for the year ended December 31, 2017 and 2016 was 3.80%. Excluding (i) accretion income on our acquired loans and (ii) recoveries on previously charged-off acquired loans, our yield on interest-earning assets for the year ended December 31, 2017 was 3.72% compared to 3.65% for 2016. The increase in our yield on interest-earning assets reflects an improved loan yield of 7 basis points to 4.14% compared to 2016, when adjusted for the above interest income items. The higher loan yield was driven by repricing of our existing loan portfolio as benchmark interest rates increased in 2017.

Interest expense for the year ended December 31, 2017 was $20.8 million, representing an increase of $4.3 million, or 26%, compared to 2016. The increase was primarily driven by higher short-term borrowing rates as the Federal Open Market Committee raised the Federal Funds Rate 75 basis points throughout 2017, driving an increase in cost of funds of 10 basis points to 0.59% for 2017 compared to 2016. We continue to focus on low-cost deposits growth (including demand, interest checking, savings and money market) for which we saw solid momentum in the second half of 2017 with average low-cost deposits increasing $91.5 million. Total average borrowings increased $69.8 million in 2017.

2016 vs. 2015 Net Interest Income. Net interest income was $115.2 million on a fully-taxable equivalent basis for 2016, compared to $88.2 million for 2015, representing an increase of $27.0 million, or 31%.

Interest income on a fully-taxable equivalent basis for 2016 was $131.7 million, representing an increase over 2015 of $30.8 million, or 31%. Our interest income growth for 2016 was primarily driven by an increase in average interest-earning assets of $702.0 million, or 25%, over last year. We also benefited from a higher yield on interest-earning assets of 15 basis points in 2016 compared to last year.

Average interest-earning assets totaled $3.5 billion for 2016, and our growth of 25% over last year was fueled by higher average loan balance of $618.5 million, or 32%. The increase in average loan balances was due to the SBM acquisition in the fourth quarter of 2015, in which we acquired $615.4 million of loan balances, as well 4% organic loan growth during 2016.

Our yield on interest-earning assets for 2016 was 3.80% compared to 3.65% last year. The increase reflects that benefits of the acquisition of SBM as our loan yield increased 8 basis points in 2016 over last year. As part of the acquisition of SBM, we acquired HPFC and it earned an average yield of 8.82% for 2016. However, effective February 19, 2016, we ceased HPFC's operations and loans are no longer being originated by HPFC and expect this loan portfolio to run off over the next several years. Also, due to the SBM acquisition, we benefited from higher loan and CD net fair value mark accretion of $4.3 million compared to last year and one-time recoveries on previously charged-off acquired SBM loans of $1.1 million for 2016. Our commercial real estate loan yield decreased 34 basis points in 2016 compared to 2015 due to the combination of (i) the competitive landscape across northern New England for strong credit commercial real estate loans, (ii) our strategy over the past two years to utilize back-to-back customer loan swaps on originated commercial real estate loans to protect us in a rising rate environment, and (iii) the low interest rate environment.

For 2016, our average deposits (excluding brokered deposits) totaled $2.6 billion, representing an increase of $656.4 million, or 35%, over last year. Our average core deposits (demand, interest checking, savings and money market) for 2016 were $2.1 billion, representing an increase of $525.4 million, or 34%, over last year. The increase in average deposits (excluding brokered deposits) was primarily due to the SBM acquisition in the fourth quarter of 2015, in which we acquired $687.0 million of deposit balances. Our cost of funds of 0.49% for 2016 increased 2 basis points over last year, which was driven by higher deposit and overnight borrowings costs and $15.0 million of subordinated debentures we issued in the fourth quarter of 2015 at a fixed interest rate of 5.50% per annum.

37

Our net interest margin on a fully-taxable equivalent basis for 2016 was 3.32%, representing an increase of 13 basis points over 2015. Our adjusted net interest margin for 2016, excluding fair value mark accretion generated in purchase accounting and one-time recoveries on previously charged-off acquired loans, was 3.15%, representing a decrease of 1 basis point compared to last year.

The following table presents, for the years noted, average balances, interest income, interest expense, and the corresponding average yields earned and rates paid, as well as net interest income, net interest rate spread and net interest margin:

38

	Average Balance, Interest and Yield/Rate Analysis
	For The Year Ended December 31,
	2017								2016								2015
	Average Balance			Interest			Yield/Rate		Average Balance			Interest			Yield/Rate		Average Balance			Interest			Yield/Rate
ASSETS
Interest-earning assets:
Securities – taxable	$	826,749		$	18,777		2.27	%	$	796,423		$	17,566		2.21	%	$	739,168		$	15,715		2.13	%
Securities – nontaxable(1)	101,898			4,253			4.17	%	103,086			4,363			4.23	%	76,779			3,397			4.42	%
Loans(2):
Residential real estate	838,781			34,517			4.12	%	822,690			34,366			4.18	%	636,516			26,505			4.16	%
Commercial real estate(3)	1,120,591			46,080			4.11	%	1,004,169			41,228			4.11	%	716,112			31,859			4.45	%
Commercial(1)	336,685			14,180			4.21	%	292,709			12,350			4.22	%	254,514			9,726			3.82	%
Municipal(1)	19,428			667			3.43	%	19,238			572			2.97	%	13,698			471			3.44	%
Consumer	343,457			15,294			4.45	%	358,098			15,111			4.22	%	310,664			12,053			3.88	%
HPFC	52,031			4,441			8.53	%	70,188			6,191			8.82	%	17,117			1,181			6.90	%
Total loans	2,710,973			115,179			4.25	%	2,567,092			109,818			4.28	%	1,948,621			81,795			4.20	%
Total interest-earning assets	3,639,620			138,209			3.80	%	3,466,601			131,747			3.80	%	2,764,568			100,907			3.65	%
Cash and due from banks	85,289								87,319								55,256
Other assets	287,765								305,440								200,857
Less: ALL	(24,068		)						(22,663		)						(21,281		)
Total assets	$	3,988,606							$	3,836,697							$	2,999,400
LIABILITIES & SHAREHOLDERS’ EQUITY
Deposits:
Demand	$	430,706		$	—		—	%	$	386,189		$	—		—	%	$	292,776		$	—		—	%
Interest checking	750,543			1,541			0.21	%	724,222			921			0.13	%	543,330			427			0.08	%
Savings	492,483			310			0.06	%	461,794			278			0.06	%	306,536			180			0.06	%
Money market	480,119			2,475			0.52	%	490,155			2,053			0.42	%	394,367			1,283			0.33	%
Certificates of deposit	466,418			4,124			0.88	%	489,040			3,793			0.78	%	357,972			3,126			0.87	%
Total deposits	2,620,269			8,450			0.32	%	2,551,400			7,045			0.28	%	1,894,981			5,016			0.26	%
Borrowings:
Brokered deposits	296,261			3,361			1.13	%	231,610			1,588			0.69	%	229,079			1,495			0.65	%
Retail repurchase agreements	232,762			1,070			0.46	%	198,403			555			0.28	%	153,101			304			0.20	%
Subordinated debentures	58,834			3,408			5.79	%	58,718			3,415			5.82	%	47,569			2,724			5.73	%
Other borrowings	329,988			4,515			1.37	%	359,281			3,951			1.10	%	358,531			3,153			0.88	%
Total borrowings	917,845			12,354			1.35	%	848,012			9,509			1.12	%	788,280			7,676			0.97	%
Total funding liabilities	3,538,114			20,804			0.59	%	3,399,412			16,554			0.49	%	2,683,261			12,692			0.47	%
Other liabilities	43,864								54,778								38,423
Shareholders’ equity	406,628								382,507								277,716
Total liabilities and shareholders’ equity	$	3,988,606							$	3,836,697							$	2,999,400
Net interest income (fully-taxable equivalent)				117,405								115,193								88,215
Less: fully-taxable equivalent adjustment				(2,105		)						(2,121		)						(1,763		)
Net interest income				$	115,300							$	113,072							$	86,452
Net interest rate spread (fully-taxable equivalent)							3.21	%							3.31	%							3.18	%
Net interest margin (fully-taxable equivalent)							3.23	%							3.32	%							3.19	%
Net interest margin (fully-taxable equivalent), excluding fair value mark accretion and collection of previously charged-off acquired loans							3.14	%							3.15	%							3.16	%

(1) Reported on a tax-equivalent basis calculated using a tax rate of 35%, including certain commercial loans.

(2) Non-accrual loans and loans held for sale are included in total average loans.

(3) Excludes the impact of the fair value mark accretion on loans and CDs generated in purchase accounting and collection of previously charged-off acquired loans for the year ended December 31, 2017, 2016 and 2015 totaling $3.2 million, $6.2 million and $864,000, respectively.

39

The following table presents certain information on a fully-taxable equivalent basis regarding changes in interest income and interest expense for the periods indicated. For each category of interest-earning assets and interest-bearing liabilities, information is provided with respect to changes attributable to rate and volume. The changes in volume (change in volume multiplied by prior year's rate), (b) changes in rates (change in rate multiplied prior year's volume), and (c) changes in rate/volume (change in rate multiplied by the change in volume), which is allocated to the change due to rate column.

	December 31, 2017 vs. 2016 Increase (Decrease) Due to:									December 31, 2016 vs. 2015 Increase (Decrease) Due to:
	Volume			Rate			Net			Volume		Rate			Net
Interest-earning assets:
Securities – taxable	$	670		$	541		$	1,211		$	1,220	$	631		$	1,851
Securities – nontaxable	(50		)	(60		)	(110		)	1,163		(197		)	966
Residential real estate	673			(522		)	151			7,745		116			7,861
Commercial real estate	4,785			67			4,852			12,819		(3,450		)	9,369
Commercial	1,856			(26		)	1,830			1,459		1,165			2,624
Municipal	6			89			95			191		(90		)	101
Consumer	(618		)	801			183			1,840		1,218			3,058
HPFC	(1,601		)	(149		)	(1,750		)	3,662		1,348			5,010
Total interest income	5,721			741			6,462			30,099		741			30,840
Interest-bearing liabilities:
Interest checking	34			586			620			145		349			494
Savings	18			14			32			93		5			98
Money market	(42		)	464			422			316		454			770
Certificates of deposit	(176		)	507			331			1,140		(473		)	667
Brokered deposits	446			1,327			1,773			16		77			93
Customer repurchase agreements	96			419			515			91		160			251
Subordinated debentures	7			(14		)	(7		)	639		52			691
Other borrowings	(322		)	886			564			7		791			798
Total interest expense	61			4,189			4,250			2,447		1,415			3,862
Net interest income (fully-taxable equivalent)	$	5,660		$	(3,448	)	$	2,212		$	27,652	$	(674	)	$	26,978

For the period indicated, we recognized within net interest income the following:

	Income Statement Location	For The Year Ended December 31,
		2017			2016			2015
Loan fees (cost)	Interest income	$	(209	)	$	(394	)	$	735
Net fair value mark accretion from purchase accounting	Interest income and Interest expense	2,837			5,082			812
Recoveries on previously charged-off acquired loans	Interest income	320			1,078			52
Total		$	2,948		$	5,766		$	1,599

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Provision for Credit Losses

The provision for credit losses is made up of our provision for loan losses and the provision for unfunded commitments.

The provision for loan losses, which makes up the vast majority of the provision for credit losses, is a recorded expense determined by management that adjusts the ALL to a level that, in management’s best estimate, is necessary to absorb probable losses within the existing loan portfolio. The provision for loan losses reflects loan quality trends, including, among other factors, the levels of and trends related to non-accrual loans, past due loans, potential problem loans, criticized loans, net charge-offs or recoveries and growth in the loan portfolio. Accordingly, the amount of the provision for loan losses reflects both the necessary increases in the ALL related to newly identified criticized loans, as well as the actions taken related to other loans including, among other things, any necessary increases or decreases in required allowances for specific loans or loan pools. The provision for loan losses for the year ended December 31, 2017 was $3.0 million, or 0.11% of average loans, compared to $5.3 million, or 0.21% of average loans, and $1.9 million, or 0.10% of average loans, for the year ended December 31, 2016 and 2015, respectively.

The factors driving a decrease in the provision for loan losses of $2.2 million for the year ended December 31, 2017 compared to 2016 were:

• A decrease in net charge-offs of $1.3 million, highlighted by a net charge-offs to average loans ratio for 2017 of 0.07% compared to 0.13% for 2016.

• Overall asset quality improvement, highlighted by a decrease in non-performing loans of $4.7 million to $20.3 million, or 0.73% of total loans, compared to 0.97% of total loans at December 31, 2016.

The factors driving an increase in the provision for loan losses of $3.3 million for the year ended December 31, 2016 compared to 2015 were:

• Credit deterioration of two large loan relationships: (i) a syndication relationship we acquired as part of the acquisition of SBM that resulted in incremental provision expense in 2016 of $1.4 million; and (ii) a large commercial real estate loan that was downgraded from passing to substandard in 2016 that resulted in incremental provision expense for 2016 of $1.3 million. Our net charge-offs to average loans ratio for the year ended December 31, 2016 increased to 0.13% compared to 0.10% for 2015.

• Organic loan growth of $104.4 million.

The provision for unfunded commitments represents management's estimate of the amount required to reflect the probable inherent losses on outstanding letters and unused lines of credit. The reserve for unfunded commitments is presented within accrued interest and other liabilities on the consolidated statement of condition.

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Non-Interest Income

The following table presents the components of non-interest income for the year ended December 31, 2017, 2016, and 2015:

	For The Year Ended December 31,
	2017			2016			Change from					2015			Change from
							2017 to 2016								2016 to 2015
							$			%					$		%
Debit card income	$	8,079		$	7,578		$	501		7	%	$	5,277		$	2,301	44	%
Service charges on deposit accounts	7,529			7,210			319			4	%	6,423			787		12	%
Mortgage banking income, net	7,363			6,258			1,105			18	%	2,031			4,227		208	%
Income from fiduciary services	5,108			4,960			148			3	%	4,918			42		1	%
Bank-owned life insurance	2,370			2,594			(224		)	(9	)%	1,680			914		54	%
Brokerage and insurance commissions	2,147			2,074			73			4	%	1,699			375		22	%
Other service charges and fees	2,029			1,962			67			3	%	1,573			389		25	%
Net gain on sale of securities	855			51			804			1,576	%	4			47		1,175	%
Other income	3,119			6,934			(3,815		)	(55	)%	3,877			3,057		79	%
Total non-interest income	$	38,599		$	39,621		$	(1,022	)	(3	)%	$	27,482		$	12,139	44	%
Non-interest income as a percentage of total revenues(1)	25		%	26		%						24		%

(1) Revenue is defined as net interest income plus non-interest income.

2017 vs. 2016 Non-Interest Income. The significant changes in non-interest income for the year ended December 31, 2017 compared to the same period of 2016 include:

• An increase in mortgage banking income, net of $1.1 million due to lower amortization costs on our servicing assets of $754,000 and a recognized unrealized gain of $384,000 on the change in valuation of our loans held for sale and forward commitments to investors on those loans, and fixed-rate mortgage interest rate lock commitments.

• An increase in net gain on sale of securities of $804,000 primarily due to the sale of several small lot investment positions with a total amortized cost of $19.4 million.

• A decrease in other income of $3.8 million was driven by: (i) non-recurring transactions in 2016 that resulted in income of $1.2 million from a legal settlement and liquidation of a mortgage insurance exchange; (ii) a decrease in loan sub-servicing income of $1.7 million upon exiting of a significant sub-servicer relationship; and (iii) a decrease in fees from customer loans swap of $530,000.

2016 vs. 2015 Non-Interest Income. The significant changes in non-interest income for the year ended December 31, 2016 compared to the same period of 2015 include:

• An increase in mortgage banking income of $4.2 million from the sale of $232.0 million of residential mortgages in 2016 that generated net gains on sale of $6.2 million compared to $61.2 million of residential mortgage sales in 2015 that generated net gains on sale of $1.3 million. The increase reflects our shift in our retail loan strategy and build-out of our mortgage banking team after the acquisition of SBM in the fourth quarter of 2015.

• An increase in other income of $3.1 million was driven by legal settlement proceeds of $638,000 related to a previously charged-off acquired loan, higher income on customer loan swaps of $590,000, one-time proceeds of $577,000 upon liquidation of a mortgage insurance exchange, and an increase in third party loan servicing income of $514,000.

• An increase in debit card income of $2.3 million, and an increase in service charges on deposit accounts of $787,000 and other service charges and fees of $389,000 was primarily due to the addition of new customer accounts in connection with the acquisition of SBM in the fourth quarter of 2015.

• An increase in BOLI income due an additional investment of $16.7 million made during 2016 and income from death benefits received of $507,000.

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Non-Interest Expenses

The following table presents the components of non-interest expense for the year ended December 31, 2017, 2016, and 2015:

	For The Year Ended December 31,
	2017			2016			Change from					2015			Change from
							2017 to 2016								2016 to 2015
							$			%					$			%
Salaries and employee benefits	$	49,965		$	48,072		$	1,893		4	%	$	37,220		$	10,852		29	%
Furniture, equipment and data processing	9,894			9,557			337			4	%	8,057			1,500			19	%
Net occupancy	6,884			7,088			(204		)	(3	)%	5,695			1,393			24	%
Consulting and professional fees	3,118			3,234			(116		)	(4	)%	2,625			609			23	%
Debit card expense	2,755			2,584			171			7	%	1,936			648			33	%
Regulatory assessments	2,166			2,777			(611		)	(22	)%	2,184			593			27	%
Amortization of intangible assets	1,810			1,903			(93		)	(5	)%	1,306			597			46	%
OREO and collection costs	971			3,128			(2,157		)	(69	)%	2,491			637			26	%
Merger and acquisition costs	—			866			(866		)	(100	)%	10,415			(9,549		)	N.M.
Other expenses	10,947			10,687			260			2	%	9,210			1,477			16	%
Total non-interest expenses	$	88,510		$	89,896		$	(1,386	)	(2	)%	$	81,139		$	8,757		11	%
Efficiency ratio (non-GAAP)(1)	57.05		%	57.53		%						61.13		%

(1) Refer to "—Non-GAAP Financial Measures and Reconciliation to GAAP" for details of calculation.

2017 vs. 2016 Non-Interest Expense.The significant changes in non-interest expense for the year ended December 31, 2017 compared to the same period of 2016 include:

• An increase in salary and employee benefits costs of $1.9 million, or 4%, driven by normal merit increases, higher bonus and incentive costs of $446,000 based on the Company's 2017 financial performance and a special cash bonus to all non-executive employees, and rising health insurance and related benefit premiums of $757,000.

• A decrease in OREO and collection costs of $2.2 million driven by lower sub-servicer costs of $1.9 million as a result of exiting a significant sub-servicer relationship, effective December 31, 2016.

• A decrease in regulatory assessments fees of $611,000 driven by the change in the FDIC fee structure that went into effect in the second half of 2016 that reduced our assessment rate.

• A decrease in merger and acquisition costs of $866,000.

2016 vs. 2015 Non-Interest Expense.The significant changes in non-interest expense for the year ended December 31, 2016 compared to the same period of 2015 was primarily due to the incremental costs associated with operating a larger organization upon completion of the acquisition of SBM in the fourth quarter of 2015, including, but not limited to, higher salary and employee costs due to an increase in headcount; higher costs associated with furniture, equipment and data processing as well as net occupancy costs due to the addition of over 20 new locations and facilities; higher regulatory fees due to an increase in average assets; and incremental intangible amortization as we capitalized $6.6 million of core deposit intangible assets through purchase accounting. In addition, we make note of the following changes in non-interest expenses in 2016 compared to 2015:

• A decrease in merger and acquisition costs associated with the acquisition of SBM of $9.5 million as the acquisition occurred in the fourth quarter of 2015.

• An increase in OREO and collections costs due to an increase in third party servicing costs and collection-related costs of $1.1 million, partially offset by lower OREO-related costs of $446,000 as our inventory of OREO properties decreased from nine at December 31, 2015 to six at December 31, 2016.

• An increase in bonuses and incentives of $931,000 due to the successful integration of SBM, and a strong financial performance for 2016.

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Income Tax Expense

Income tax expense for the year ended December 31, 2017, 2016 and 2015 was $33.9 million, $17.5 million and $9.9 million, respectively. Our effective income tax rate was 54.3%, 30.4% and 32.1% in each of the past three years, respectively.

On December 22, 2017, the Tax Act passed reducing the federal corporate tax rate from 35.0% to 21.0%, effective January 1, 2018. ASC Topic 740, Accounting for Income Taxes (“ASC 740”), requires companies to recognize the effect of tax law changes in the period of enactment even though the effective date for most provisions of the Tax Act was January 1, 2018. As of December 31, 2017, the Company has completed its accounting for the tax effects of the Tax Act, which resulted in a reduction to net deferred tax assets and a corresponding charge to income tax expense of $14.3 million. At December 31, 2017 and 2016, the Company had net deferred tax assets of $22.8 million and $39.3 million, respectively, that are determined and reported utilizing a deferred tax rate of 21.5% and 35.0%, respectively.

Our 2017 effective income tax rate differs from our marginal tax rate of 35.7% (federal income tax rate and state income tax rate, net of federal tax benefit) primarily due to the Tax Act in 2017. Our effective income tax rates for 2017, 2016 and 2015 also differ from the marginal tax rate due to our non-taxable interest income from our municipal bonds and certain qualifying loans, non-taxable life insurance income, tax credits received, and, effective January 1, 2016, the benefit (or detriment) from windfall tax benefits (or shortfall) upon vesting of restricted stock awards and exercise of non-qualified stock options.

For 2018, we anticipate a lower effective tax rate due to the aforementioned decrease in the federal corporate income tax rate.

In connection with the SBM acquisition, we acquired certain net operating losses and tax credit carryforwards as of the acquisition date, including federal net operating losses of $71.2 million and State of Maine net operating losses of $213,000. We determined we would not be able to utilize $6.8 million of the acquired federal net operating losses by the expiration date and wrote-off this amount within purchase accounting. Due to Internal Revenue Code Section 382(g) limitations, our use of the federal net operating losses acquired is limited to $3.9 million annually (and $803,000 for fiscal year 2015), which was determined using the applicable federal rate and the fair value of consideration paid for the acquisition at the acquisition date. The acquired federal net operating losses will expire between 2030 and 2034. We continuously monitor and assess the need for a valuation allowance on the acquired federal net operating losses and, at December 31, 2017, we determined that no valuation allowance was necessary.

Refer to Note 12, Income Taxes, within Item 8. Financial Statements and Supplementary Data for further discussion of income taxes.

Impact of Inflation and Changing Prices

The consolidated financial statements and the notes to the consolidated financial statements presented in Item 8. “Financial Statements and Supplementary Data,” have been prepared in accordance with GAAP, which require the measurement of the financial position and operating results in terms of historical dollars and, in some case, current fair values without considering changes in the relative purchasing power of money over time due to inflation. Unlike many industrial companies, substantially all of our assets and virtually all of our liabilities are monetary in nature. As a result, interest rates have a more significant impact on our performance than the general level of inflation. Over short periods of time, interest rates and the yield curve may not necessarily move in the same direction or in the same magnitude as inflation.

Financial Condition

Investment Securities

We purchase and hold investment securities to diversify our revenues, interest rate and credit risk, and provide for liquidity and funding needs. Our investment securities portfolio is primarily made up of MBS (pass through securities and CMOs), which accounted for 98% of our total investment securities portfolio at December 31, 2017 and 2016, followed by municipal bonds, subordinated corporate bonds, and a minority (less than 5%) equity position in certain bank stocks. Additionally, the Bank is a member of the FHLBB and FRBB and is required to hold a certain amount of FHLBB and FRBB common stock.

44

With the exception of our municipal bonds portfolio, we have historically designated our investment securities as AFS to provide us greater flexibility in managing our liquidity and funding needs in conjunction with our overall asset/liability management program. At December 31, 2017 and 2016, the fair value of investment securities designated as AFS was $789.9 million and $779.9 million, respectively, whereas the carrying value of our municipal bonds designated as HTM was $94.1 million and $94.6 million, respectively. AFS securities are carried at fair value on the consolidated statements of condition with the associated unrealized gains or losses recorded in AOCI, net of tax. HTM securities are carried at amortized cost.

Our investments in FHLBB and FRB common stock are carried at cost. We are required to maintain a level of investment in FHLBB stock based on our level of FHLBB advances, and maintain a level of investment in FRB common stock based on the Bank's capital levels. As of December 31, 2017 and 2016, our investment in FHLBB stock totaled $18.3 million and $17.8 million, respectively, and our investment in FRB stock was $5.4 million.

At December 31, 2017 and 2016, our investment securities portfolio was 22% and 23% of our total assets, respectively.

The following table presents the activity within our investment securities portfolio for the period indicated:

	Debt									Equity
	AFS			HTM			Total			AFS			Cost			Total			Total
Carrying value at January 1, 2017	$	779,126		$	94,609		$	873,735		$	741		$	23,203		$	23,944		$	897,679
Purchases	170,495			—			170,495			—			12,290			12,290			182,785
Sales, carrying value	(19,433		)	—			(19,433		)	(78		)	(11,823		)	(11,901		)	(31,334		)
Principal repayments, maturities and calls	(134,607		)	—			(134,607		)	—			—			—			(134,607		)
Amortization, net	(2,586		)	(536		)	(3,122		)	—			—			—			(3,122		)
Change in unrealized gains (losses)	(3,902		)	—			(3,902		)	143			—			143			(3,759		)
Carrying value at December 31, 2017	$	789,093		$	94,073		$	883,166		$	806		$	23,670		$	24,476		$	907,642

For the year ended December 31, 2017, 2016 and 2015, we recognized net gains on the sale of investment securities of $855,000, $51,000 and $4,000 respectively.

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The following table sets forth the carrying value of AFS securities and HTM securities along with the percentage distribution:

	December 31,
	2017				2016				2015
	Carrying Value		Percent of Reported Balance		Carrying Value		Percent of Reported Balance		Carrying Value		Percent of Reported Balance
AFS Securities:
Obligations of U.S. government sponsored enterprises	$	—	—	%	$	—	—	%	$	5,040	1	%
Obligations of states and political subdivisions	7,335		1	%	9,001		1	%	17,694		2	%
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	503,302		64	%	480,622		62	%	419,046		56	%
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	272,799		34	%	283,890		36	%	306,857		41	%
Subordinated corporate bonds	5,657		1	%	5,613		1	%	996		—	%
Total AFS debt securities	789,093		100	%	779,126		100	%	749,633		100	%
Equity securities	806		—	%	741		—	%	705		—	%
Total AFS securities	789,899		100	%	779,867		100	%	750,338		100	%
HTM Securities:
Obligations of states and political subdivisions	94,073		100	%	94,609		100	%	84,144		100	%
Total HTM securities	94,073		100	%	94,609		100	%	84,144		100	%
Total	$	883,972			$	874,476			$	834,482

We continuously monitor and evaluate our investment securities portfolio to identify and assess risks within our portfolio, including, but not limited to, the impact of the current rate environment and the related prepayment risk, and review credit ratings. The overall mix of debt securities at December 31, 2017 compared to December 31, 2016 remains relatively unchanged and well positioned to provide a stable source of cash flow. The duration of our debt investment securities portfolio at December 31, 2017 was 3.71 years as compared to last year of 4.08 years. We continue to invest in debt securities with a short period until maturity or call option to limit prepayment risk.

MBS securities are directly impacted by the interest rate environment and the yield curve. A low interest rate environment directly affects the interest income earned on these investments by accelerating prepayments and, consequently, the acceleration of our premium amortization. Additionally, a low rate environment and a flatter yield curve will decrease the yield earned upon reinvestment of the prepayment proceeds back into other MBS securities, impacting our net interest income and margin. As of December 31, 2017, the amount of net premiums on our investment securities to be recognized in future periods totaled $12.1 million, which equated to a weighted-average premium above par of approximately 1%. Subsequent changes to the interest rate environment will continue to impact our investment yield and earned net interest income.

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The following table presents the book value (i.e. amortized cost) and fully-taxable equivalent weighted-average yields of debt securities by contractual maturity for the periods indicated. Actual maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

													December 31,
													2017			2016			2015
	Due in 1 year or less			Due in 1 – 5 years			Due in 5 – 10 years			Due in over 10 years			Book Value			Book Value			Book Value
Debt securities:
Obligations of U.S. government sponsored enterprises	$	—		$	—		$	—		$	—		$	—		$	—		$	4,971
Obligations of states and political subdivisions	2,301			8,605			10,369			80,030			101,305			103,457			101,499
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	16			61,966			151,332			296,862			510,176			485,222			419,429
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	3,420			38,428			55,734			181,993			279,575			289,046			312,719
Private issue collateralized mortgage obligations	—			—			—			—			—			—			—
Subordinated corporate bonds	—			—			5,484			—			5,484			5,481			1,000
Total debt securities	$	5,737		$	108,999		$	222,919		$	558,885		$	896,540		$	883,206		$	839,618
Weighted-average yield on debt securities	3.16		%	2.22		%	2.24		%	2.43		%	2.36		%	2.33		%	2.36		%

We review our investment securities portfolio quarterly for impairment in accordance with our internal policy. Our assessment includes, but is not limited to, reviewing available financial data, assessing credit rating changes, if any, and consideration of our intent and ability to hold temporarily impaired investment securities until we expect them to recover. At December 31, 2017 and 2016, we held investment securities that were in an unrealized loss position totaling $14.5 million and $13.2 million, respectively, that we concluded were temporarily impaired and we have the intent and ability to hold these securities until they recover. The decline in the fair value of the debt securities was reflective of current interest rates in excess of the yield received on investments and was not indicative of an overall credit deterioration or other factors within our investment securities portfolio. Refer to Note 3, Securities, within Item 8. Financial Statements and Supplementary Data for further discussion.

Loans

We provide loans primarily to customers located within our geographic market area. Our primary market continues to be in Maine, making up 81% of our loan portfolio at December 31, 2017, followed by Massachusetts and New Hampshire, making up 7% and 5%, respectively. Our distribution channels include 60 branches within Maine, one residential mortgage lending office in Braintree, Massachusetts, one commercial lending office in Manchester, New Hampshire, and an on-line loan platform for residential mortgage loans. In the first quarter of 2018, we opened a loan office in Portsmouth, New Hampshire, that will provide commercial and residential mortgage lending.

Our total residential mortgage production in 2017 totaled $414.7 million, an increase of 12% over 2016 residential real estate originations of $370.0 million. We sold to the secondary market 53% and 65% of our production in 2017 and 2016, respectively.

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The following table sets forth the composition of our loan portfolio at the dates indicated.

	December 31,
	2017				2016				2015				2014				2013
Residential real estate	$	858,369	31	%	$	802,494	31	%	$	820,617	33	%	$	585,468	33	%	$	569,819	36	%
Commercial real estate	1,164,023		42	%	1,050,780		41	%	927,951		37	%	640,661		36	%	541,099		34	%
Commercial	373,400		13	%	333,639		13	%	297,721		12	%	257,515		15	%	179,203		11	%
Consumer and home equity	341,527		12	%	347,239		13	%	366,587		15	%	288,966		16	%	290,281		19	%
HPFC	45,120		2	%	60,412		2	%	77,330		3	%	—		—	%	—		—	%
Total loans	$	2,782,439	100	%	$	2,594,564	100	%	$	2,490,206	100	%	$	1,772,610	100	%	$	1,580,402	100	%
Loan portfolio mix:
Retail	1,199,896		43	%	1,149,733		44	%	1,187,204		48	%	874,434		49	%	860,100		55	%
Commercial	1,582,543		57	%	1,444,831		56	%	1,303,002		52	%	898,176		51	%	720,302		45	%

On October 16, 2015, we completed our acquisition of SBM. The following table presents the composition of the acquired loan portfolio as of the acquisition date (at fair value) and the calculated organic loan growth in 2015:

	December 31,				Change				SBM Acquisition		Year Ended December 31, 2015 Organic Growth
	2015		2014		($)		(%)
Residential	$	820,617	$	585,468	$	235,149	40	%	$	234,619	$	530		—	%
Commercial real estate	927,951		640,661		287,290		45	%	193,883		93,407			15	%
Commercial	297,721		257,515		40,206		16	%	35,417		4,789			2	%
Home equity	348,634		271,709		76,925		28	%	71,005		5,920			2	%
Consumer	17,953		17,257		696		4	%	2,526		(1,830		)	(11	)%
HPFC	77,330		—		77,330		N.M.		77,773		(443		)	N.M.
Total loans	$	2,490,206	$	1,772,610	$	717,596	40	%	$	615,223	$	102,373		6	%

Residential Real Estate Loans. Residential real estate loans consist of loans secured by one-to four-family residences. We generally retain in our portfolio adjustable rate mortgages and fixed rate mortgages with original terms of 30 years or less. At December 31, 2017, our residential real estate loans totaled $858.4 million, representing an increase of $55.9 million, or 7%, since December 31, 2016.

Commercial Real Estate Loans. Commercial real estate loans consist of loans secured by income and non-income producing commercial real estate. We focus on lending to financially sound business customers primarily within our geographic marketplace, as well as offering loans for the acquisition, development and construction of commercial real estate. At December 31, 2017, our commercial real estate loans totaled $1.2 billion, representing an increase of $113.2 million, or 11%, over last year.

The most significant industry concentration within our commercial real estate loan portfolio at December 31, 2017 was the non-residential building operators industry (operators of commercial and industrial buildings, retail establishments, theaters, banks and insurance buildings). At December 31, 2017, the non-residential building operators' industry concentration was 27% of our total commercial real estate portfolio and 11% of our total loan portfolio. There were no other industry concentrations within our loan portfolio at December 31, 2017 that exceeded 10% of total loans.

Commercial Loans. Commercial loans consist of loans secured by various corporate assets, as well as loans to provide working capital in the form of lines of credit, which may be secured or unsecured. Municipal loans primarily consist of short-term tax anticipation notes made to municipalities for fixed asset or construction-related purposes and are included in commercial loans. We focus on lending to financially sound business customers and municipalities within our geographic marketplace. At December 31, 2017, our commercial loans totaled $373.4 million, representing an increase of $39.8 million, or 12%, over last year.

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Consumer Loans and Home Equity Loans. Consumer loans and home equity loans are originated for a wide variety of purposes designed to meet the needs of our customers. Consumer loans include overdraft protection, automobile, boat, recreational vehicle, and mobile home loans, home equity loans and lines, and secured and unsecured personal loans. At December 31, 2017, our consumer and home equity loans totaled $341.5 million, representing a decrease of $5.7 million, or 2%, since December 31, 2016.

HPFC. HPFC is a wholly-owned subsidiary of the Bank that provided commercial lending to dentists, optometrists and veterinarians, many of which are start-up companies. HPFC's loan portfolio consists of term loan obligations extended for the purpose of financing working capital and/or purchase of equipment. Collateral may consist of pledges of business assets including, but not limited to, accounts receivable, inventory, and/or equipment. These loans are primarily paid by the operating cash flow of the borrower and the terms range from seven to ten years. At December 31, 2017, our HPFC commercial loan portfolio totaled $45.1 million, representing a decrease of $15.3 million, or 25%, since December 31, 2016. The HPFC loan portfolio will continue to decrease until all loans have matured as we ceased operations of HPFC, effective February 2016.

Asset Quality

The Bank's Board of Directors monitors credit risk through the Directors’ Loan Review Committee, which reviews large credit exposures, monitors the external loan review reports, reviews the lending authority for individual loan officers when required, and has approval authority and responsibility for all matters regarding the loan policy and other credit-related policies, including reviewing and monitoring asset quality trends, concentration levels, and the ALL methodology. Credit Risk Administration and the Credit Risk Policy Committee oversee management’s systems and procedures to monitor the credit quality of the loan portfolio, conduct a loan review program, maintain the integrity of the loan rating system, determine the adequacy of the ALL, and support the oversight efforts of the Directors' Loan Review Committee and the Board of Directors. Our practice is to proactively manage the portfolio such that management can identify problem credits early, assess and implement effective work-out strategies, and take charge-offs as promptly as practical. In addition, management continuously reassesses its underwriting standards in response to credit risk posed by changes in economic conditions.

Non-Performing Assets. Non-performing assets include non-accrual loans, accruing loans 90 days or more past due, accruing renegotiated loans, and OREO. The level of our non-performing assets over the past five years is shown in the table below.

	December 31,
	2017			2016			2015			2014			2013
Non-accrual loans:
Residential real estate loans	$	4,979		$	3,945		$	7,253		$	6,056		$	10,520
Commercial real estate	5,642			12,849			4,529			7,043			7,799
Commercial loans	2,000			2,088			4,489			1,529			2,146
Consumer and home equity loans	1,650			1,624			2,051			2,011			2,012
HPFC	1,043			207			—			—			—
Non-accrual loans	15,314			20,713			18,322			16,639			22,477
Accruing loans past due 90 days	—			—			—			—			455
Accruing TDRs (not included above)	5,012			4,338			4,861			4,539			5,468
Total non-performing loans	20,326			25,051			23,183			21,178			28,400
Other real estate owned	130			922			1,304			1,587			2,195
Total non-performing assets	$	20,456		$	25,973		$	24,487		$	22,765		$	30,595
Non-accrual loans to total loans	0.55		%	0.80		%	0.74		%	0.94		%	1.44		%
Non-performing loans to total loans	0.73		%	0.97		%	0.93		%	1.19		%	1.82		%
Allowance for loan losses to non-performing loans	118.92		%	92.28		%	91.30		%	99.71		%	76.02		%
Non-performing assets to total assets	0.50		%	0.67		%	0.66		%	0.82		%	1.18		%
Allowance for loan losses to non-performing assets	118.16		%	89.00		%	86.44		%	92.76		%	70.57		%

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Generally, a loan is classified as non-accrual when interest and/or principal payments are 90 days past due or when management believes collecting all principal and interest owed is in doubt. All previously accrued but unpaid interest on non-accrual loans is reversed from interest income in the current period. Interest payments received on non-accrual loans (including impaired loans) are applied as a reduction of principal. A loan remains on non-accrual status until all principal and interest amounts contractually due are brought current, all future principal and interest payments are reasonably assured, and a consistent repayment record, generally six consecutive payments, has been demonstrated. At this time, we may reclassify the loan to performing. For loans that qualify as TDRs, we will classify the interest collected as interest income once the aforementioned criteria for non-accrual loans is met and demonstrated. However, loans classified as TDRs remain classified as such for the life of the loan, except in limited circumstances, when it is determined that the borrower is performing under the modified terms and the loan is subsequently restructured and re-written in a new agreement at an (i) interest rate greater than or equal to an acceptable market rate for a comparable new loan at the time of the restructuring, and (ii) there has been no principal forgiveness.

At December 31, 2017, non-accrual loans were $15.3 million, representing a decrease of $5.4 million, or 26%, since December 31, 2016. The decrease was driven by the resolution of one significant loan within commercial real estate that had a recorded investment balance at December 31, 2016 of $11.3 million. Otherwise, non-accrual loans within commercial real estate, residential real estate and HPFC all increased; however, we do not believe this is indicative of overall credit deterioration across these loan portfolios. At December 31, 2017, our asset quality remained strong with non-performing assets to total assets of 0.50% and non-performing loans to total loans of 0.73%, compared to 0.67% and 0.97% at December 31, 2016, respectively.

The following table highlights the interest income that would have been recognized if loans on non-accrual status had been current in accordance with their original terms ("foregone interest income") and the interest income recognized on non-performing loans and performing TDRs for the periods indicated.

	For The Year Ended December 31,
	2017		2016		2015
Foregone interest income	$	843	$	888	$	586
Interest income recognized on non-performing loans and performing TDRs	215		182		204

Potential Problem Loans. Potential problem loans consist of classified accruing commercial and commercial real estate loans that were between 30 and 89 days past due. Such loans are characterized by weaknesses in the financial condition of our borrowers or collateral deficiencies. Based on historical experience, the credit quality of some of these loans may improve due to changes in collateral values or the financial condition of the borrowers, while the credit quality of other loans may deteriorate, resulting in some amount of loss. These loans are not included in the above analysis of non-accrual loans. At December 31, 2017 potential problem loans amounted to $838,000, or 0.03% of total loans.

Past Due Loans. Past due loans consist of accruing loans that were between 30 and 89 days past due. The following table presents the recorded investment of past due loans at the dates indicated:

	December 31,
	2017			2016
Loans 30 – 89 days past due:
Residential real estate loans	$	5,277		$	2,470
Commercial real estate loans	1,135			971
Commercial loans	518			851
Consumer and home equity loans	1,197			1,018
HPFC	887			1,029
Total loans 30 – 89 days past due	$	9,014		$	6,339
Loans 30 – 89 days past due to total loans	0.32		%	0.24		%

ALL. We use a methodology to systematically measure the amount of estimated loan loss exposure inherent in the loan portfolio for purposes of establishing a sufficient ALL. The ALL is management’s best estimate of the probable loan losses as of the balance sheet date. The allowance is increased by provisions charged to earnings and by recoveries of amounts previously charged-off, and is reduced by charge-offs on loans.

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As part of normal course, we continuously monitor, and, at least annually, update our factors used to determine the general allowance for each loan portfolio segment. To derive our general allowance loss factors we utilize: (i) our historical loss data for each respective loan portfolio segment; (ii) identify other inherent risks within each portfolio segment, including, but not limited to, concentration risks, loans approved by the Company's Board of Directors that are an exception to our internal loan policy, and construction loans; and (iii) consider certain qualitative factors that may influence a borrower's ability to repay their loan.

Effective January 1, 2017, our internal policy for assessing individual loans for impairment was changed to increase the principal balance threshold for a loan from $250,000 to $500,000. The qualitative factors for assessing a loan individually for impairment in accordance with the Company's internal policy were unchanged, and continue to require the loan to be classified as substandard or doubtful and on non-accrual status. There were no other significant changes in the Company's ALL methodology during the year ended December 31, 2017. Loans are deemed impaired if it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Loans that are individually-evaluated for impairment in accordance with our policy are excluded from allocation of any general loss factor.

In conjunction with the annual review of our ALL policy in the fourth quarter of 2017, we revised our methodology for calculating the ALL on construction and development loans before reaching permanent financing. This change in ALL methodology did not have a material impact on the Company's reported ALL as of December 31, 2017.

Reserve for Unfunded Commitments. The reserve for unfunded commitments is based on management’s estimate of the amount required to reflect the probable inherent losses on outstanding letters and unused loan credit lines. Adequacy of the reserve is determined using a methodology similar to the one that analyzes the allowance for loan losses. Additionally, management must also estimate the likelihood that these commitments would be funded and become loans.

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The following table sets forth information concerning the activity in our ALL during the periods indicated:

	At or For the Year Ended December 31,
	2017			2016			2015			2014			2013
ALL at the beginning of period	$	23,116		$	21,166		$	21,116		$	21,590		$	23,044
Provision for loan losses	3,026			5,269			1,938			2,224			2,052
Charge-offs:
Residential real estate	482			356			801			785			1,059
Commercial real estate	124			315			481			361			952
Commercial	1,014			2,218			655			1,544			1,426
Consumer and home equity	558			409			679			754			837
HPFC	290			507			—			—			—
Total loan charge-offs	2,468			3,805			2,616			3,444			4,274
Recoveries:
Residential real estate	30			95			55			165			35
Commercial real estate	141			50			74			135			121
Commercial	301			332			389			395			495
Consumer and home equity	19			9			210			51			117
HPFC	6			—			—			—			—
Total loan recoveries	497			486			728			746			768
Net charge-offs	1,971			3,319			1,888			2,698			3,506
ALL at the end of the period	$	24,171		$	23,116		$	21,166		$	21,116		$	21,590
Components of allowance for credit losses:
ALL	$	24,171		$	23,116		$	21,166		$	21,116		$	21,590
Liability for unfunded credit commitments	20			11			22			17			21
Balance of allowance for credit losses at end of the period	$	24,191		$	23,127		$	21,188		$	21,133		$	21,611
Net charge-offs to average loans outstanding	0.07		%	0.13		%	0.10		%	0.16		%	0.22		%
Provision for loan losses to average loans outstanding	0.11		%	0.21		%	0.10		%	0.13		%	0.13		%
ALL to total loans	0.87		%	0.89		%	0.85		%	1.19		%	1.38		%
ALL to net charge-offs	1,226.33		%	696.47		%	1,121.08		%	782.65		%	615.80		%

For further discussion of the ALL, please refer to “—Critical Accounting Policies”, as well as Note 1, Business and Summary of Significant Accounting Policies, and Note 4, Loans and Allowance for Loan Losses, within Item 8. Financial Statements and Supplementary Data.

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The following table sets forth information concerning the allocation of the ALL by loan categories at the dates indicated:

	December 31,
	2017				2016				2015				2014				2013
	Amount		Percent of Loans in Each Category to Total Loans		Amount		Percent of Loans in Each Category to Total Loans		Amount		Percent of Loans in Each Category to Total Loans		Amount		Percent of Loans in Each Category to Total Loans		Amount		Percent of Loans in Each Category to Total Loans
Residential real estate loans	$	5,086	31	%	$	4,160	31	%	$	4,545	33	%	$	4,899	33	%	$	5,603	36	%
Commercial real estate loans	11,863		42	%	12,154		41	%	10,432		37	%	7,951		36	%	4,374		34	%
Commercial loans	4,171		13	%	3,755		13	%	3,241		12	%	3,354		15	%	6,220		11	%
Consumer and home equity loans	2,600		12	%	2,375		13	%	2,924		15	%	2,528		16	%	2,722		19	%
HPFC	451		2	%	672		2	%	24		3	%	—		—	%	—		—	%
Unallocated	—		—	%	—		—	%	—		—	%	2,384		—	%	2,671		—	%
	$	24,171	100	%	$	23,116	100	%	$	21,166	100	%	$	21,116	100	%	$	21,590	100	%

Refer to Note 4, Loans and Allowance for Loan Losses, within Item 8. Financial Statements and Supplementary Data of for discussion of the risk characteristics for each portfolio segment considered when evaluating the ALL.

Investment in BOLI

Our BOLI asset totaled $87.5 million and $78.1 million at December 31, 2017 and 2016, respectively. The increase year-over-year reflects additional purchases in 2017 of $7.0 million. BOLI provides a means to mitigate increasing employee benefit costs. We expect to benefit from the BOLI contracts as a result of the tax-free growth in cash surrender value and death benefits that are expected to be generated over time. The largest risk to the BOLI program is credit risk of the insurance carriers. To mitigate this risk, annual financial condition reviews are completed on all carriers. BOLI is invested in the “general account” of quality insurance companies or in separate account products. Each insurance carrier had an A.M. Best rating of "A-" or better at December 31, 2017. BOLI is included in the consolidated statements of condition at its cash surrender value. Increases in BOLI’s cash surrender value are reported as a component of non-interest income in the consolidated statements of income.

Deposits

The Company, through the Bank, receives checking, savings and time deposits primarily from customers located within its geographic market area. Other forms of deposits include brokered deposits and deposits with the Certificate of Deposit Account Registry System. Total deposits at December 31, 2017 were $3.0 billion, which included brokered deposits of $205.8 million. Total deposits at December 31, 2017 increased $172.0 million, or 6%, over December 31, 2016.

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The following table presents certain deposit information for the periods indicated.

	For the Year Ended December 31,
	2017				2016				2015
	Average Balance		Average Rate Paid		Average Balance		Average Rate Paid		Average Balance		Average Rate Paid
Deposits:
Demand	$	430,706	—	%	$	386,189	—	%	$	292,776	—	%
Interest checking	750,543		0.21	%	724,222		0.13	%	543,330		0.08	%
Savings	492,483		0.06	%	461,794		0.06	%	306,536		0.06	%
Money market	480,119		0.52	%	490,155		0.42	%	394,367		0.33	%
Total core deposits	2,153,851		0.20	%	2,062,360		0.16	%	1,537,009		0.12	%
Certificates of deposit	466,418		0.88	%	489,040		0.78	%	357,972		0.87	%
Total deposits	2,620,269		0.32	%	2,551,400		0.28	%	1,894,981		0.26	%
Brokered deposits	296,261		1.13	%	231,610		0.69	%	229,079		0.65	%
Total deposits, including brokered deposits	$	2,916,530	0.40	%	$	2,783,010	0.31	%	$	2,124,060	0.31	%

Borrowings and Advances

We utilize a variety of funding sources to manage our borrowings, including, but not limited to, FHLBB and correspondent bank overnight borrowings, FHLBB advances due in less than 90 days and more than 90 days, customer and wholesale repurchase agreements, and subordinated debentures. We pro-actively monitor our borrowings through Management and Board ALCO as part of prudent balance sheet, earnings, and liquidity management. We manage and designate our borrowings internally, and manage to such, through use of short-term borrowings and long-term borrowings. Short-term borrowings include, but are not limited to, FHLBB and correspondent bank overnight borrowings, FHLBB advances due in less than 90 days, and customer repurchase agreements. Long-term borrowings include, but are not limited to, FHLBB advances greater than 90 days, wholesale repurchase agreements, and subordinated debentures.

At December 31, 2017, our total borrowings were $611.5 million, representing an increase since December 31, 2016 of $11.8 million. Our borrowing strategy has been primarily to remain short given our current interest rate risk position. We continue to assess the need to extend funding advances based on the likelihood and timing of interest rates rising as part of Management and Board ALCO.

We issued $15.0 million of subordinated debt on October 8, 2015, which qualifies as Tier II regulatory capital. The interest rate on the subordinated debt was 5.50% per annum, fixed for the ten-year term and payable semi-annually on April 15 and October 15 each year. We may redeem the subordinated debt at par starting on October 15, 2020 plus accrued and unpaid interest, or earlier if (i) they no longer qualify as Tier II capital for regulatory capital purposes; (ii) a change in law that prevents us from deducting interest payable for U.S. federal income tax purposes, or (iii) we are required to register as an investment company pursuant to the Investment Company Act of 1940. The subordinated debt is schedule to mature on October 15, 2025.

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The following table below provides certain information on our short-term borrowings (as described for managing borrowings) at and for the period ended:

	December 31,
	2017			2016			2015
FHLBB and correspondent bank overnight borrowings:
Balance outstanding at end of year	$	47,150		$	89,450		$	12,800
Average daily balance outstanding	73,487			36,492			18,229
Maximum balance outstanding at any month end	135,550			157,197			70,000
Weighted average interest rate for the year	1.19		%	0.57		%	0.35		%
Weighted average interest rate at end of year	1.59		%	0.80		%	0.51		%
FHLBB advances less than 90 days:
Balance outstanding at end of year	$	250,000		$	190,000		$	230,000
Average daily balance outstanding	233,305			258,713			253,679
Maximum balance outstanding at any month end	330,000			370,000			285,000
Weighted average interest rate for the year	1.23		%	0.71		%	0.25		%
Weighted average interest rate at end of year	1.53		%	0.76		%	0.46		%
Customer repurchase agreements:
Balance outstanding at end of year	$	244,646		$	225,605		$	184,989
Average daily balance outstanding	232,762			198,403			153,101
Maximum balance outstanding at any month end	265,627			239,862			194,625
Weighted average interest rate for the year	0.46		%	0.28		%	0.20		%
Weighted average interest rate at end of year	0.56		%	0.31		%	0.24		%

FHLBB short-term and long-term borrowings are collateralized by a blanket lien on qualified collateral consisting primarily of loans with first mortgages secured by one- to four-family properties, certain commercial real estate loans, certain pledged investment securities and other qualified assets. The carrying value of residential real estate and commercial loans pledged as collateral was $1.1 billion at December 31, 2017 and 2016. The carrying value of securities pledged as collateral at the FHLBB was $215,000 and $400,000 at December 31, 2017 and 2016, respectively.

Shareholders’ Equity

Total shareholders’ equity at December 31, 2017 was $403.4 million, which was an increase of $11.9 million, or 3%, since December 31, 2016. The increase in our shareholders' equity was driven by normal operating activity, including, but not limited to, net income of $28.5 million for the year ended December 31, 2017, partially offset by dividends declared to our shareholders of $14.6 million.

The Company's Board of Directors declared cash dividends for the year ended December 31, 2017 of $0.94 per share, compared to $0.83 per share for 2016 and $0.80 per share for 2015. The increase in cash dividends paid to its shareholders highlights the strong capital position of the Company. At December 31, 2017 and 2016, the Company and the Bank exceeded all regulatory capital guidelines, and, specifically, the Bank was "well capitalized" under prompt correct action provisions for each period. There were no conditions or events that occurred subsequent to December 31, 2017 that would change the Company or Bank's regulatory capital categorization.

Refer to "—Capital Resources" and Note 13, Shareholders' Equity, within Item 8. Financial Statements and Supplementary Data of for further discussion of the Company's capital position.

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The following table presents certain information regarding shareholders’ equity for the year ended:

	December 31,
	2017			2016			2015
Return on average assets	0.71		%	1.04		%	0.70		%
Adjusted return on average assets(1)	1.07		%	1.06		%	0.94		%
Return on average equity	7.00		%	10.47		%	7.54		%
Adjusted return on average equity(1)	10.51		%	10.62		%	10.15		%
Adjusted return on average tangible equity(1)	14.35		%	14.96		%	13.21		%
Average equity to average assets	10.19		%	9.97		%	9.26		%
Dividend payout ratio	51.43		%	32.22		%	50.60		%
Book value per share	$	25.99		$	25.30		$	23.69
Tangible book value per share(1)	$	19.57		$	18.74		$	16.89
Dividends declared per share	$	0.94		$	0.83		$	0.80

(1) The following was not calculated in accordance with GAAP. Refer to the "— Non-GAAP Financial Measures and Reconciliation to GAAP" within Item 7.

Liquidity

Our liquidity needs require the availability of cash to meet the withdrawal demands of depositors and credit commitments to borrowers. Liquidity is defined as our ability to maintain availability of funds to meet customer needs, as well as to support our asset base. The primary objective of liquidity management is to maintain a balance between sources and uses of funds to meet our cash flow needs in the most economical and expedient manner. Due to the potential for unexpected fluctuations in both deposits and loans, active management of liquidity is necessary. We maintain various sources of funding and levels of liquid assets in excess of regulatory guidelines in order to satisfy their varied liquidity demands. We monitor liquidity in accordance with internal guidelines and all applicable regulatory requirements. At December 31, 2017 and 2016, our level of liquidity exceeded target levels. We believe that we currently have appropriate liquidity available to respond to liquidity demands. Sources of funds that we utilize consist of deposits, borrowings from the FHLBB and other sources, cash flows from operations, prepayments and maturities of outstanding loans, investments and mortgage-backed securities and the sale of mortgage loans.

Deposits continue to represent our primary source of funds. For the year ended December 31, 2017, average deposits (excluding brokered deposits) of $2.6 billion increased $68.9 million, or 3%, compared to the same period of 2016. The increase in average deposit balances (excluding brokered deposits) reflects organic deposit growth during 2017. Included within our money market deposits at December 31, 2017 and 2016 were $57.1 million and $72.1 million, respectively, of deposits from Camden National Wealth Management, the Bank's wealth management department, which represent client funds. These deposits fluctuate with changes in the portfolios of the clients of Camden National Wealth Management.

Borrowings are used to supplement deposits as a source of liquidity. In addition to borrowings and advances from the FHLBB, we utilize brokered deposits, purchase federal funds, and sell securities under agreements to repurchase. For the year ended December 31, 2017 and 2016, average total borrowings (including brokered deposits) were $917.8 million and $848.0 million, respectively. The increase in average borrowings was driven by an increase in loan activity. We secure borrowings from the FHLBB, whose advances remain the largest non-deposit-related funding source, with qualified residential real estate loans, certain investment securities and certain other assets available to be pledged. Through the Bank, we have available lines of credit with the FHLBB of $9.9 million, with PNC Bank of $50.0 million, and with the FRB Discount Window of $99.8 million at December 31, 2017. There were no outstanding balances on these lines of credit at December 31, 2017. The Company also has a $10.0 million line of credit with a maturity date of December 20, 2018. There was no outstanding balance on this line of credit at December 31, 2017. From time to time, we will enter into wholesale repurchase agreements with major brokerage firms as another source of funding. At December 31, 2016, we had $5.0 million of wholesale repurchase agreements that matured during 2017. We had no outstanding wholesale repurchase agreements at December 31, 2017.

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We believe the investment portfolio and residential loan portfolio provide a significant amount of contingent liquidity that could be accessed in a reasonable time period through sales of those portfolios. We also believe that we have additional untapped access to the brokered deposit market, wholesale reverse repurchase transaction market and the FRB discount window. These sources are considered as liquidity alternatives in our contingent liquidity plan. We believe that the level of liquidity is sufficient to meet current and future funding requirements; however, changes in economic conditions, including consumer saving habits and the availability or access to the national brokered deposit and wholesale repurchase markets, could significantly impact our liquidity position.

The maturity dates of CDs, including brokered CDs, in denominations of $100,000 or more as of December 31, 2017 are set forth in the following table. We did not hold any other time deposits in denominations of $100,000 or more at December 31, 2017. These deposits are generally considered to be more interest rate sensitive than other deposits and, therefore, more likely to be withdrawn to obtain higher yields elsewhere if available.

Time remaining until maturity:	December 31, 2017
Less than 3 months	$	21,924
3 months through 6 months	35,812
6 months through 12 months	65,671
Over 12 months	126,311
Total	$	249,718

Loan demand also affects our liquidity position. As of December 31, 2017, 58% of our total loan portfolio consisted of variable rate loans. The following table presents the maturities of loans at December 31, 2017:

	< 1 Year		1 - 5 Years		More than 5 Years		Total
Maturity Distribution:
Fixed Rate:
Residential real estate	$	482	$	5,224	$	512,166	$	517,872
Commercial real estate	7,857		106,939		106,786		221,582
Commercial	6,038		59,400		87,710		153,148
Consumer and home equity	1,831		13,222		265,045		280,098
Total fixed rate	16,208		184,785		971,707		1,172,700
Variable Rate:
Residential real estate	2,403		1,517		336,577		340,497
Commercial real estate	13,383		77,294		851,764		942,441
Commercial	60,135		105,408		99,827		265,370
Consumer and home equity	26		10,784		50,618		61,428
Total variable rate	75,947		195,003		1,338,786		1,609,736
Total loans	$	92,155	$	379,788	$	2,310,493	$	2,782,436

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Capital Resources

As part of our goal to operate a safe, sound and profitable financial organization, we are committed to maintaining a strong capital base. Shareholders’ equity totaled $403.4 million and $391.5 million at December 31, 2017 and December 31, 2016, respectively, which amounted to 10% of total assets as of the respective dates. Refer to "— Financial Condition — Liabilities and Shareholders' Equity" for discussion regarding changes in shareholders' equity since December 31, 2016.

Our principal cash requirement is the payment of dividends on our common stock, as and when declared by the Company's Board of Directors. We paid dividends to shareholders in the aggregate amount of $14.6 million, $12.9 million and $10.6 million for the year ended December 31, 2017, 2016 and 2015, respectively. The Company's Board of Directors approves cash dividends on a quarterly basis after careful analysis and consideration of various factors, including the following: (i) capital position relative to total assets, (ii) risk-based assets, (iii) total classified assets, (iv) economic conditions, (v) growth rates for total assets and total liabilities, (vi) earnings performance and projections and (vii) strategic initiatives and related capital requirements. All dividends declared and distributed by the Company will be in compliance with applicable state corporate law and regulatory requirements.

We are primarily dependent upon the payment of cash dividends by the Bank, our wholly-owned subsidiary, to service our commitments. We, as the sole shareholder of the Bank, are entitled to dividends, when and as declared by the Bank's Board of Directors from legally available funds. For the year ended December 31, 2017, 2016, and 2015, the Bank declared dividends payable to the Company in the amount of $16.8 million, $16.0 million, and $39.2 million which included a $30.0 million special dividend that was paid in connection with the acquisition of SBM, respectively. Under regulations prescribed by the OCC, without prior OCC approval, the Bank may not declare dividends in any year in excess of the Bank’s (i) net income for the current year, (ii) plus its retained net income for the prior two years. If we are required to use dividends from the Bank to service unforeseen commitments in the future, we may be required to reduce the dividends paid to our shareholders going forward.

Please refer to Note 13, Shareholders' Equity, within Item 8. Financial Statements and Supplementary Data for discussion and details of the Company and Bank's capital regulatory requirements. At December 31, 2017 and 2016, the Company and Bank met all regulatory capital requirements and the Bank continues to be classified as "well capitalized" under the prompt correction action provisions.

Contractual Obligations and Off-Balance Sheet Commitments

Off-Balance Sheet Financial Instruments

Credit Commitments.In the normal course of business, we are a party to credit related financial instruments with off-balance sheet risk, which are not reflected in the consolidated statements of condition. These financial instruments include lending commitments and letters of credit. Those instruments involve varying degrees of credit risk in excess of the amount recognized in the consolidated statements of condition. We follow the same credit policies in making commitments to extend credit and conditional obligations as we do for on-balance sheet instruments, including requiring similar collateral or other security to support financial instruments with credit risk. Our exposure to credit loss in the event of nonperformance by the customer is represented by the contractual amount of those instruments. Since many of the commitments are expected to expire without being drawn upon, the total amount does not necessarily represent future cash requirements.

Derivatives.We use derivative financial instruments for risk management purposes (primarily interest rate risk) and not for trading or speculative purposes. We control the credit risk of these instruments through collateral, credit approvals and monitoring procedures. Additionally, as part of our normal mortgage origination process, we provide the borrower with the option to lock their interest rate based on current market prices. During the period from commitment date to the loan closing date, we are subject to the risk of interest rate change. In an effort to mitigate such risk, we may enter into forward delivery sales commitments, typically on a best-efforts basis, with certain approved investors. We account for its interest rate lock commitments on loans within the normal origination process for which we intend to sell as a derivative instrument. Furthermore, we record a derivative for our best-effort forward delivery commitments upon origination of a loan identified as held for sale. Should we enter into a forward delivery commitment on a mandatory delivery arrangement with an investor it accounts for the forward delivery commitment upon execution of the contract.

Hedge Instruments.From time to time, we may enter into derivative instruments as partial hedges against large fluctuations in interest rates. We may also enter into fixed-rate interest rate swaps and floor instruments to partially hedge against potentially lower yields on the variable prime rate loan category in a declining rate environment. If interest rates were to decline, resulting in reduced income on the adjustable rate loans, there would be an increased income flow from the interest

58

rate swap and floor instrument. We may also enter into variable rate interest rate swaps and cap instruments to partially hedge against increases in short-term borrowing rates. If interest rates were to rise, resulting in an increased interest cost, there would be an increased income flow from the interest rate swaps and cap instruments. These financial instruments are factored into our overall interest rate risk position. We regularly review the credit quality of the counterparty from which the instruments have been purchased.

Refer to Note 18, Commitments, Contingencies and Derivatives, within Item 8. Financial Statements and Supplementary Data for further discussion of our derivatives and hedge instruments.

At December 31, 2017, we had the following levels of off-balance sheet financial instruments:

	Total Amount Committed		Commitment Expires in:
Off-Balance Sheet Financial Instruments			< 1 Year		1 – 3 Years		4 – 5 Years		> 5 Years
Home equity line of credit commitments	$	477,401	$	176,021	$	66,946	$	6,228	$	228,206
Commercial commitment letters	49,482		49,482		—		—		—
Residential loan origination	41,368		41,368		—		—		—
Letters of credit	2,848		2,848		—		—		—
Other commitments to extend credit	523		523		—		—		—
Customer loan swaps - notional value	703,336		—		18,793		153,808		530,735
FHLBB advance interest rate swaps - notional value	50,000		25,000		25,000		—		—
Junior subordinated debt interest rate swaps - notional value	43,000		—		—		10,000		33,000
Fixed-rate mortgage interest rate lock commitments -notional value	21,746		21,746		—		—		—
Forward delivery commitments - notional value	8,065		8,065		—		—		—
Total	$	1,397,769	$	325,053	$	110,739	$	170,036	$	791,941

Contractual Obligations and Commitments

We are a party to several contractual obligations through lease agreements on a number of branches. Our operating leases represent off-balance sheet arrangements, while our one capital lease is reflected on our consolidated statements of condition. Refer to Note 7, Premises and Equipment, within Item 8. Financial Statements and Supplementary Data for additional details.

We enter into agreements routinely as part of our normal business to manage deposits and borrowings.

At December 31, 2017, we had an obligation and commitment to make future payments under each of these contracts as follows:

	Total Amount Committed		Payments Due Per Period
Contractual obligations and commitments			< 1 Year		1 – 3 Years		4 – 5 Years		> 5 Years
Operating leases	$	6,397	$	1,429	$	2,282	$	1,155	$	1,531
Capital leases	1,064		126		252		261		425
FHLBB borrowings – overnight	47,150		47,150		—		—		—
FHLBB advances less than 90 days	250,000		250,000		—		—		—
FHLBB advances – other	10,000		—		10,000		—		—
Retail repurchase agreements	244,646		244,646		—		—		—
Junior subordinated debentures	44,331		—		—		—		44,331
Subordinated debentures	14,580		—		—		—		14,580
Other contractual obligations	1,230		1,230		—		—		—
Total	$	619,398	$	544,581	$	12,534	$	1,416	$	60,867

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Borrowings from the FHLBB consist of short- and long-term fixed and variable rate borrowings that are collateralized by all stock in the FHLBB and a blanket lien on qualified collateral consisting primarily of loans with first mortgages secured by one-to four-family properties, certain pledged investment securities and other qualified assets.

We have an obligation and commitment to repay all short- and long-term borrowings. These commitments and borrowings and the related payments are made during the normal course of business.

Loan Servicing

At December 31, 2017 and 2016, as sub-servicer, we serviced loans for other third party investors totaling $349.7 million and $938.8 million, respectively. At December 31, 2017 and 2016, custodial escrow balances maintained in connection with the loans serviced totaled $4.2 million and $11.9 million, respectively. Effective close of business on December 31, 2016, we exited a significant sub-servicer relationship driving the decrease in total sub-serviced loans and escrow balances.

The servicing agreements with our third party investors, generally, provide broad rights for them. For example, each investor typically claims the right to demand that we repurchase loans that breach the seller’s representations and warranties made in connection with the initial sale of the loans. In addition, as the servicer of the loans, the servicer guides impose certain time-lines for resolving delinquent loans through workout efforts or liquidation and impose compensatory fees on us if those deadlines are not satisfied other than for reasons beyond our control. The investors also have a contractual right to demand indemnification or loan repurchase for certain servicing breaches. For example, we would be required to indemnify them for or against failures by us to perform our servicing obligations or acts or omissions that involve willful malfeasance, bad faith or gross negligence in the performance of, or reckless disregard of, our duties. We record expenses for servicing-related claims and loan repurchases when it is probable that such claims or repurchases will be made and the amounts are reasonably estimable.

Market Risk

Market risk is the risk of loss in a financial instrument arising from adverse changes in market rates/prices, such as interest rates, foreign currency exchange rates, commodity prices and equity prices. Our primary market risk exposure is interest rate risk. The ongoing monitoring and management of this risk is an important component of our asset and liability management process, which is governed by policies established by the Bank’s Board of Directors that are reviewed and approved annually. The Board ALCO delegates responsibility for carrying out the asset/liability management policies to Management ALCO. In this capacity, Management ALCO develops guidelines and strategies impacting our asset/liability management-related activities based upon estimated market risk sensitivity, policy limits and overall market interest rate levels/trends. Management ALCO and Board ALCO jointly meet on a quarterly basis to review strategies, policies, economic conditions and various activities as part of the management of these risks.

Interest Rate Risk

Interest rate risk represents the sensitivity of earnings to changes in market interest rates. As interest rates change, the interest income and expense streams associated with our financial instruments also change, thereby impacting net interest income, the primary component of our earnings. Board ALCO and Management ALCO utilize the results of a detailed and dynamic simulation model to quantify the estimated exposure of net interest income to sustained interest rate changes. While Board ALCO and Management ALCO routinely monitor simulated net interest income sensitivity over a rolling two-year horizon, they also utilize additional tools to monitor potential longer-term interest rate risk.

The simulation model captures the impact of changing interest rates on the interest income received and interest expense paid on all interest-earning assets and interest-bearing liabilities reflected on our consolidated statements of condition, as well as for derivative financial instruments. This sensitivity analysis is compared to ALCO policy limits, which specify a maximum tolerance level for net interest income exposure over a one- and two-year horizon, assuming no balance sheet growth, given a 200 basis point upward and downward shift in interest rates. Although our policy specifies a downward shift of 200 basis points, this would results in negative rates as many deposit and funding rates are now below 2.00%. Our current downward shift is 100 basis points. A parallel and pro rata shift in rates over a 12-month period is assumed. Using this approach, we are able to produce simulation results that illustrate the effect that both a gradual change of rates and a “rate shock” have on earnings expectations. In the down 100 basis points scenario, Federal Funds and Treasury yields are floored at 0.01% while Prime is floored at 3.00%. All other market rates are floored at 0.25%.

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For the year ended December 31, 2017 and 2016, our net interest income sensitivity analysis reflected the following changes to net interest income assuming no balance sheet growth and a parallel shift in interest rates. All rate changes were “ramped” over the first 12-month period and then maintained at those levels over the remainder of the ALCO simulation horizon.

	Estimated Changes in Net Interest Income
Rate Change from Year 1 – Base	2017		2016
Year 1
+200 basis points	(0.22	)%	(0.93	)%
-100 basis points	(3.06	)%	(1.45	)%
Year 2
+200 basis points	6.86	%	3.63	%
-100 basis points	(8.08	)%	(7.73	)%

The preceding sensitivity analysis does not represent a forecast and should not be relied upon as being indicative of expected operating results. These hypothetical estimates are based upon numerous assumptions including, among others, the nature and timing of interest rate levels, yield curve shape, prepayments on loans and securities, deposit decay rates, pricing decisions on loans and deposits and reinvestment/replacement of asset and liability cash flows. While assumptions are developed based upon current economic and local market conditions, we cannot make any assurances as to the predictive nature of these assumptions, including how customer preferences or competitor influences might change.

If rates remain at or near current levels, net interest income is projected to trend slightly upward as assets continue to settle into marginally higher rates while funding costs remain relatively stable. Beyond the first year, net interest income increases slightly. If rates decrease 100 basis points, net interest income is projected to decrease as loans reprice into lower yields and funding costs have limited capacity to reduce the cost of funds in the first year. In the second year, net interest income is projected to continue to decrease as loans and investment cash flow reprice into lower yields as prepayments increase while reduction in the cost of funds becomes limited. If rates increase 200 basis points, net interest income is projected to decrease slightly in the first year due to the repricing of short-term funding. In the second year, net interest income is projected to increase as loan and investment yields continue to reprice/reset into higher yields and the cost of funds lags.

Periodically, if deemed appropriate, we use interest rate swaps, floors and caps, which are common derivative financial instruments, to hedge our interest rate risk position. The Board of Directors has approved hedging policy statements governing the use of these instruments. As of December 31, 2017, we had interest rate swap agreements with a total notional of $43.0 million related to the junior subordinated debentures, $50.0 million of notional on FHLBB interest swap agreements related to our short-term funding and $226.9 million of notional interest rate swap agreements related to our commercial loan level derivative program with both our commercial customers and a corresponding swap dealer. The Board and Management ALCO monitor derivative activities relative to their expectations and our hedging policies.

Other Market Risk(s)

We are also subject to other market risks, including but not limited to, operational risks, actions of government agencies, solvency of counter-parties, changes in investment markets, and changes in consumer demand. For further descriptions of these additional market risks, refer to Item 1A. Risk Factors.

Recent Accounting Pronouncements

See Note 1, Business and Summary of Significant Accounting Policies, within Item 8. Financial Statements and Supplemental Data for details of recently issued accounting pronouncements and their expected impact on our financial statements.

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Related Party Transactions

The Bank is permitted, in its normal course of business, to make loans to certain officers and directors of the Company and its subsidiaries under terms that are consistent with the Bank’s lending policies and regulatory requirements. In addition to extending loans to certain officers and directors of the Company and its subsidiaries on terms consistent with the Bank’s lending policies, federal banking regulations also require training, audit and examination of the adherence to this policy by representatives of the federal and national regulators (also known as “Regulation O” requirements). Note 4, Loans and Allowance for Loan Losses, and Note 9, Deposits, within Item 8. Financial Statements and Supplemental Data provide related party lending and deposit information, respectively. We have not entered into significant non-lending related party transactions.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

The information contained in the Market Risk section of Item 7. "Management’s Discussion and Analysis of Financial Condition and Results of Operations" is incorporated herein by reference.

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Item 8. Financial Statements and Supplementary Data

CONSOLIDATED STATEMENTS OF CONDITION

	December 31,
(In thousands, except number of shares)	2017			2016
ASSETS
Cash and due from banks	$	48,107		$	52,168
Interest-bearing deposits in other banks	54,864			35,539
Total cash and cash equivalents	102,971			87,707
Investments:
Available-for-sale securities, at fair value	789,899			779,867
Held-to-maturity securities, at amortized cost (fair value of $94,913 and $94,596, respectively)	94,073			94,609
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	23,670			23,203
Total investments	907,642			897,679
Loans held for sale, at fair value	8,103			14,836
Loans:	2,782,439			2,594,564
Less: allowance for loan losses	(24,171		)	(23,116		)
Net loans	2,758,268			2,571,448
Goodwill	94,697			94,697
Other intangible assets	4,955			6,764
Bank-owned life insurance	87,489			78,119
Premises and equipment, net	41,891			42,873
Deferred tax assets	22,776			39,263
Other assets	36,606			30,844
Total assets	$	4,065,398		$	3,864,230
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities
Deposits:
Demand	$	478,643		$	406,934
Interest checking	855,570			701,494
Savings and money market	985,508			979,263
Retail certificates of deposit	475,010			468,203
Brokered deposits	205,760			272,635
Total deposits	3,000,491			2,828,529
Short-term borrowings	541,867			530,129
Long-term borrowings	10,720			10,791
Subordinated debentures	58,911			58,755
Accrued interest and other liabilities	49,996			44,479
Total liabilities	3,661,985			3,472,683
Commitments and contingencies
Shareholders’ Equity
Common stock, no par value: authorized 40,000,000 shares, issued and outstanding 15,524,704 and 15,476,379 on December 31, 2017 and 2016, respectively	156,904			156,041
Retained earnings	266,723			249,415
Accumulated other comprehensive loss:
Net unrealized losses on available-for-sale securities, net of tax	(10,300		)	(6,085		)
Net unrealized losses on cash flow hedging derivative instruments, net of tax	(5,926		)	(5,694		)
Net unrecognized losses on postretirement plans, net of tax	(3,988		)	(2,130		)
Total accumulated other comprehensive loss	(20,214		)	(13,909		)
Total shareholders’ equity	403,413			391,547
Total liabilities and shareholders’ equity	$	4,065,398		$	3,864,230

The accompanying notes are an integral part of these consolidated financial statements.

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CONSOLIDATED STATEMENTS OF INCOME

	For The Year Ended December 31,
(In thousands, except number of shares and per share data)	2017		2016		2015
Interest Income
Interest and fees on loans	$	114,563	$	109,224	$	81,221
Interest on U.S. government and sponsored enterprise obligations (taxable)	16,879		16,082		15,091
Interest on state and political subdivision obligations (nontaxable)	2,764		2,836		2,208
Interest on other investments	1,898		1,484		624
Total interest income	136,104		129,626		99,144
Interest Expense
Interest on deposits	11,811		8,633		6,511
Interest on borrowings	5,585		4,506		3,457
Interest on subordinated debentures	3,408		3,415		2,724
Total interest expense	20,804		16,554		12,692
Net interest income	115,300		113,072		86,452
Provision for credit losses	3,035		5,258		1,936
Net interest income after provision for credit losses	112,265		107,814		84,516
Non-Interest Income
Debit card income	8,079		7,578		5,277
Service charges on deposit accounts	7,529		7,210		6,423
Mortgage banking income, net	7,363		6,258		2,031
Income from fiduciary services	5,108		4,960		4,918
Bank-owned life insurance	2,370		2,594		1,680
Brokerage and insurance commissions	2,147		2,074		1,699
Other service charges and fees	2,029		1,962		1,573
Net gain on sale of securities	855		51		4
Other income	3,119		6,934		3,877
Total non-interest income	38,599		39,621		27,482
Non-Interest Expense
Salaries and employee benefits	49,965		48,072		37,220
Furniture, equipment and data processing	9,894		9,557		8,057
Net occupancy costs	6,884		7,088		5,695
Consulting and professional fees	3,118		3,234		2,625
Debit card expense	2,755		2,584		1,936
Regulatory assessments	2,166		2,777		2,184
Amortization of intangible assets	1,809		1,903		1,306
Other real estate owned and collection costs, net	971		3,128		2,491
Merger and acquisition costs	—		866		10,415
Other expenses	10,948		10,687		9,210
Total non-interest expense	88,510		89,896		81,139
Income before income tax expense	62,354		57,539		30,859
Income Tax Expense	33,878		17,472		9,907
Net income	$	28,476	$	40,067	$	20,952
Per Share Data:
Basic earnings per share	$	1.83	$	2.59	$	1.73
Diluted earnings per share	$	1.82	$	2.57	$	1.73
Weighted average number of common shares outstanding	15,509,665		15,422,160		12,031,294
Diluted weighted average number of common shares outstanding	15,588,347		15,504,239		12,074,579

The accompanying notes are an integral part of these consolidated financial statements.

64

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	For The Year Ended December 31,
(In thousands)	2017			2016			2015
Net income	$	28,476		$	40,067		$	20,952
Other comprehensive loss:
Net change in unrealized losses on available-for-sale securities:
Net change in unrealized losses on available-for-sale securities, net of tax of $1,017, $1,212, and $1,873, respectively	(1,888		)	(2,251		)	(3,479		)
Net reclassification adjustment for net gains included in net income, net of tax of $299, $18, and $1, respectively(1)	(556		)	(33		)	(3		)
Net change in unrealized losses on available-for-sale securities, net of tax	(2,444		)	(2,284		)	(3,482		)
Net change in unrealized gains (losses) on cash flow hedging derivatives:
Net change in unrealized losses on cash flow hedging derivatives, net of tax of $134, $343, and $825, respectively	(248		)	(637		)	(1,533		)
Net reclassification adjustment for effective portion of cash flow hedges, net of tax of ($557), ($709), and ($593), respectively(2)	1,035			1,317			1,102
Net change in unrealized gains (losses) on cash flow hedging derivatives, net of tax	787			680			(431		)
Postretirement plans:
Net actuarial loss, net of tax of $723, $127, and $21, respectively	(1,342		)	(235		)	(39		)
Reclassification of amortization of net unrecognized actuarial loss and of net prior service cost included in net periodic cost, net of tax of ($92), ($83), and ($84), respectively(3)	170			152			155
Net gain (loss) on postretirement plans, net of tax	(1,172		)	(83		)	116
Other comprehensive loss	(2,829		)	(1,687		)	(3,797		)
Comprehensive income	$	25,647		$	38,380		$	17,155

(1) Reclassified into the consolidated statements of income within net gain on sale of securities.

(2) Reclassified into the consolidated statements of income within interest on borrowings and subordinated debentures.

(3) Reclassified into the consolidated statements of income within salaries and employee benefits.

The accompanying notes are an integral part of these consolidated financial statements.

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

	Common Stock					Retained Earnings			Accumulated Other Comprehensive Loss			Total Shareholders’ Equity
(In thousands, except number of shares and per share data)	Shares Outstanding		Amount
Balance at December 31, 2014	11,139,333		$	41,555		$	211,979		$	(8,425	)	$	245,109
Net income	—		—			20,952			—			20,952
Other comprehensive loss, net of tax	—		—			—			(3,797		)	(3,797		)
Stock-based compensation expense	—		836			—			—			836
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings	66,741		753			—			—			753
Equity issuance costs incurred for the SBM Financial, Inc. acquisition	—		(612		)	—			—			(612		)
Common stock issued for the SBM Financial, Inc. acquisition	4,124,643		108,561			—			—			108,561
Non-qualified stock option awards issued for the SBM Financial, Inc. acquisition	—		1,990			—			—			1,990
Cash dividends declared ($0.80 per share)	—		—			(10,602		)	—			(10,602		)
Balance at December 31, 2015	15,330,717		153,083			222,329			(12,222		)	363,190
Cumulative effect adjustment(1)	—		72			(72		)	—			—
Cash in lieu for fractional shares paid due to the stock split (Note 14)	(173	)	(5		)	—			—			(5		)
Net income	—		—			40,067			—			40,067
Other comprehensive loss, net of tax	—		—			—			(1,687		)	(1,687		)
Stock-based compensation expense	—		1,997			—			—			1,997
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit	145,835		894			—			—			894
Cash dividends declared ($0.83 per share)	—		—			(12,909		)	—			(12,909		)
Balance at December 31, 2016	15,476,379		156,041			249,415			(13,909		)	391,547
Net income	—		—			28,476			—			28,476
Reclassification of certain income tax effects from AOCI(2)	—		—			3,476			(3,476		)	—
Other comprehensive loss, net of tax	—		—			—			(2,829		)	(2,829		)
Stock-based compensation expense	—		1,469			—			—			1,469
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit	48,325		(606		)	—			—			(606		)
Cash dividends declared ($0.94 per share)	—		—			(14,644		)	—			(14,644		)
Balance at December 31, 2017	15,524,704		$	156,904		$	266,723		$	(20,214	)	$	403,413

(1) In the second quarter of 2016, the Company adopted ASU 2016-09, effective January 1, 2016. The Company made a policy election to not estimate the forfeiture rate in the accounting for share-based compensation on its unvested share-based awards. The change in policy was accounted for on a modified-retrospective basis and represents the cumulative effect adjustment to shareholders' equity.

(2) In December of 2017, the Company early adopted ASU 2018-02, as a result, the Company made a policy election to release income tax effects, as a result of the Tax Act, from AOCI to retained earnings.

The accompanying notes are an integral part of these consolidated financial statements.

66

CONSOLIDATED STATEMENTS OF CASH FLOWS

	For The Year Ended December 31,
(In thousands)	2017			2016			2015
Operating Activities
Net income	$	28,476		$	40,067		$	20,952
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	3,035			5,258			1,936
Depreciation and amortization expense	3,761			4,426			3,614
Purchase accounting accretion, net	(2,834		)	(5,048		)	(367		)
Investment securities amortization and accretion, net	3,122			3,135			2,244
Stock-based compensation expense	1,469			1,997			836
Amortization of intangible assets	1,809			1,903			1,306
Net gains on sale of investment securities	(855		)	(51		)	(4		)
Net increase in other real estate owned valuation allowance and (gain) loss on disposition	(15		)	35			362
Originations of mortgage loans held for sale	(211,568		)	(236,450		)	(72,032		)
Proceeds from the sale of mortgage loans	224,883			238,351			62,485
Gain on sale of mortgage loans, net of origination costs	(6,256		)	(6,201		)	(1,278		)
Cost of fixed assets disposals associated with the SBM Financial, Inc. acquisition	—			—			1,130
Income from bank-owned life insurance death benefits	—			(507		)	—
Proceeds from bank-owned life insurance death benefits	—			1,092			—
(Increase) decrease in other assets	12,060			11,836			(7,062		)
Increase (decrease) in other liabilities	1,247			(1,333		)	1,796
Net cash provided by operating activities	58,334			58,510			15,918
Investing Activities
Cash received in the SBM Financial, Inc. acquisition, net of cash paid	—			—			59,917
Proceeds from sales and maturities of available-for-sale securities	154,973			184,564			156,434
Purchase of available-for-sale securities	(170,495		)	(220,169		)	(111,170		)
Purchase of securities held-to-maturity	—			(10,986		)	(64,355		)
Net increase in loans	(187,740		)	(103,699		)	(94,811		)
Proceeds from the sale of premises and equipment	137			90			—
Purchase of premises and equipment	(2,844		)	(1,671		)	(3,189		)
Purchase of Federal Home Loan Bank and Federal Reserve Bank stock	(12,290		)	(7,342		)	(1,594		)
Proceeds from sale of Federal Home Loan Bank and Federal Reserve Bank stock	11,823			5,652			471
Proceeds from sale of other real estate owned	808			730			2,825
Recoveries of previously charged-off loans	497			486			728
Purchase of bank-owned life insurance	(7,000		)	(16,700		)	—
Net cash used in investing activities	(212,131		)	(169,045		)	(54,744		)
Financing Activities
Net increase in deposits	172,291			103,027			71,825
Net proceeds from (repayments of) borrowings less than 90 days	36,699			77,227			(18,105		)
Repayments on Federal Home Loan Bank long-term advances	(20,000		)	(25,000		)	(11,039		)
Proceeds from Federal Home Loan Bank long-term advances	—			—			10,000
Repayments of wholesale repurchase agreements	(5,000		)	(25,000		)	—
Issuance of subordinated debt, net of costs	—			—			14,464
Equity issuance costs	—			—			(612		)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings	(606		)	894			753
Cash dividends paid on common stock and cash in lieu for fractional shares paid due to stock split	(14,323		)	(12,394		)	(9,785		)
Net cash provided by financing activities	169,061			118,754			57,501
Net increase in cash and cash equivalents	15,264			8,219			18,675
Cash and cash equivalents at beginning of year	87,707			79,488			60,813
Cash and cash equivalents at end of year	$	102,971		$	87,707		$	79,488

The accompanying notes are an integral part of these consolidated financial statements.

67

CONSOLIDATED STATEMENTS OF CASH FLOWS

(CONTINUED)

	For The Year Ended December 31,
(In thousands)	2017		2016		2015
Supplemental information
Interest paid	$	20,774	$	16,661	$	12,588
Income taxes paid	16,841		10,647		12,205
Transfer of loans and premises to other real estate owned	—		383		2,175
Measurement-period adjustments (Note 2)	—		960		—
Assets acquired in the acquisition of SBM Financial, Inc., excluding net cash received (not adjusted for measurement-period adjustments)	—		—		729,283
Liabilities assumed in the acquisition of SBM Financial Inc. (not adjusted for measurement-period adjustments)	—		—		729,500
Common stock and stock options issued in connection with the SBM Financial, Inc. acquisition	—		—		110,551

The accompanying notes are an integral part of these consolidated financial statements.

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CAMDEN NATIONAL CORPORATION

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Dollar Amounts in Tables Expressed in Thousands, Except Per Share Data)

1. Business and Summary of Significant Accounting Policies

Acronyms and Abbreviations.The acronyms and abbreviations identified below are used in the notes to the consolidated financial statements. The following is provided to aid the reader and provide a reference page when reviewing these notes to the consolidated financial statements.

AFS:	Available-for-sale	HPFC:	Healthcare Professional Funding Corporation, a wholly-owned subsidiary of Camden National Bank
ALCO:	Asset/Liability Committee	HTM:	Held-to-maturity
ALL:	Allowance for loan losses	IRS:	Internal Revenue Service
AOCI:	Accumulated other comprehensive income (loss)	LIBOR:	London Interbank Offered Rate
ASC:	Accounting Standards Codification	LTIP:	Long-Term Performance Share Plan
ASU:	Accounting Standards Update	Management ALCO:	Management Asset/Liability Committee
Bank:	Camden National Bank, a wholly-owned subsidiary of Camden National Corporation	MBS:	Mortgage-backed security
BOLI:	Bank-owned life insurance	MSPP:	Management Stock Purchase Plan
Board ALCO:	Board of Directors' Asset/Liability Committee	N.M.:	Not meaningful
CCTA:	Camden Capital Trust A, an unconsolidated entity formed by Camden National Corporation	OCC:	Office of the Comptroller of the Currency
CDs:	Certificate of deposits	OCI:	Other comprehensive income (loss)
Company:	Camden National Corporation	OREO:	Other real estate owned
CMO:	Collateralized mortgage obligation	OTTI:	Other-than-temporary impairment
DCRP:	Defined Contribution Retirement Plan	SBM:	SBM Financial, Inc., the parent company of The Bank of Maine
EPS:	Earnings per share	SERP:	Supplemental executive retirement plans
FASB:	Financial Accounting Standards Board	Tax Act:	Tax Cuts and Jobs Act of 2017, enacted on December 22, 2017
FDIC:	Federal Deposit Insurance Corporation	TDR:	Troubled-debt restructured loan
FHLB:	Federal Home Loan Bank	UBCT:	Union Bankshares Capital Trust I, an unconsolidated entity formed by Union Bankshares Company that was subsequently acquired by Camden National Corporation
FHLBB:	Federal Home Loan Bank of Boston	U.S.:	United States of America
FRB:	Federal Reserve System Board of Governors	2003 Plan:	2003 Stock Option and Incentive Plan
FRBB:	Federal Reserve Bank of Boston	2012 Plan:	2012 Equity and Incentive Plan
GAAP:	Generally accepted accounting principles in the United States

69

General Business.Camden National Corporation, a Maine corporation (the "Company"), is the bank holding company for Camden National Bank (the "Bank") and is headquartered in Camden, Maine. The primary business of the Company is to attract deposits from, and to extend loans to, consumer, institutional, municipal, non-profit and commercial customers. The Company, through the Bank, offers commercial and consumer banking products and services, and through Camden Financial Consultants, a division of the Bank, and Camden National Wealth Management, a department of the Bank, offers brokerage and insurance services as well as investment management and fiduciary services. The Bank's deposits are insured by the FDIC, subject to regulatory limits.

Principles of Consolidation.  The accompanying consolidated financial statements include the accounts of the Company and the Bank (which includes the consolidated accounts of HPFC, Property A, Inc. and Property P, Inc.). All intercompany accounts and transactions have been eliminated in consolidation. Assets held by the Bank in a fiduciary capacity, through Camden National Wealth Management, are not assets of the Company and, therefore, are not included in the consolidated statements of condition. The Company also owns 100% of the common stock of CCTA and UBCT. These entities are unconsolidated subsidiaries of the Company.

Reclassifications.  Certain reclassifications have been made to prior year amounts to conform to the current year's presentation.

Use of Estimates. The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could vary from these estimates. Several estimates are particularly critical and are susceptible to significant near-term change, including the ALL, the accounting for business combinations including subsequent impairment analyses for goodwill and other intangible assets, accounting for income taxes, postretirement benefits and asset impairment judgments, including OTTI of investment securities.

Subsequent Events. The Company has evaluated events and transactions subsequent to December 31, 2017 for potential recognition or disclosure as required by GAAP.

Significant Concentration of Credit Risk.The Bank grants loans primarily to customers in Maine. Although the Bank has a diversified loan portfolio, a large portion of the Bank's loans are secured by commercial or residential real estate located in Maine and is subject to volatility within Maine's real estate market. Furthermore, the debtors' ability to honor their contracts is highly dependent upon other economic factors throughout Maine. The Bank does not generally engage in non-recourse lending and typically will require the principals of any commercial borrower to obligate themselves personally on the loan.

Cash and Cash Equivalents. For the purposes of reporting cash flows, cash and cash equivalents consist of cash on hand and amounts due from banks. The Bank is required by the FRB to maintain cash reserves equal to a percentage of deposits. The Company maintains the reserve balances in cash on hand or at the FRB.

Investment Securities. Investment securities are classified at the time of purchase as AFS, HTM, or trading. The classification of investment securities are constantly re-evaluated for consistency with corporate goals and objectives.

Trading securities are carried at fair value on the consolidated statements of condition with subsequent changes to fair value recorded in earnings. At December 31, 2017 and 2016, the Company did not have any investment securities classified as trading securities on its consolidated statements of condition.

Debt securities for which the Company has the positive intent and ability to hold to maturity are classified as HTM and recorded at amortized cost on the consolidated statements of condition. At December 31, 2017 and 2016, the Company had investment securities of $94.1 million and $94.6 million, respectively, classified as HTM and carried at amortized cost on its consolidated statements of condition.

Investment securities that are not classified as HTM or trading securities are classified as AFS and are carried at fair value on the Company's consolidated statements of condition with subsequent changes to fair value recorded within AOCI, net of tax. At December 31, 2017 and 2016, the Company had investment securities of $789.9 million and $779.9 million, respectively, classified as AFS and carried at fair value on its consolidated statements of condition.

Purchase premiums and discounts are recognized in interest income on the consolidated statements of income using the interest method over the period to maturity (or issuer call option date, if earlier) and are recorded on the trade date.

70

Upon sale of an investment security designated as AFS, the unrealized gain or loss recorded within AOCI, net of tax, is reversed. Gains and losses on the sale of investment securities are recognized within non-interest income on the consolidated statements of income and are recorded on the trade date using the specific identification method.

Management conducts a quarterly review and evaluation of its debt and equity securities portfolio to determine if the decline in fair value of any security appears to be other-than-temporary. The factors considered by management in its review include, but are not limited to: the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, the credit ratings of the security or issuer, whether the decline in fair value appears to be issuer specific or, alternatively, a reflection of general market or industry conditions, and the Company’s intent and ability to hold the security for a period of time sufficient to allow for a recovery in fair value.

Should the Company determine that the decline in the fair value of an equity security was other-than-temporary, the Company recognizes the impairment on the equity security within non-interest income on the consolidated statements of income when identified. For debt securities where the Company does not intend to sell the security and it is not more-likely-than-not that the Company will be required to sell the security before recovery of its amortized cost basis, the other-than-temporary decline in the fair value of the debt security related to: (i) credit loss is recognized in non-interest income on the consolidated statements of income; and (ii) other factors is recognized in AOCI, net of tax. For debt securities where the Company intends to sell the security or more-likely-than-not will be required to sell the security before recovery of its amortized cost, the Company recognizes the OTTI equal to the entire difference between the security’s cost basis and its fair value within non-interest income on the consolidated statements of income.

The Bank is a member of the FHLBB and FRBB, and as a member, the Bank is required to hold a certain amount of FHLBB and FRB common stock. This stock is a non-marketable equity security and is reported at cost. The Company evaluates its FHLBB and FRB common stock for impairment based on the ultimate recoverability of the par value rather than by recognizing temporary declines in value.

Loans Held for Sale. The Company has elected the fair value option for loans classified as held for sale on the consolidated statements of condition. Designation of loans as held for sale is determined based on the Company's intent and is, typically, completed as the loans are underwritten. The fair value for loans held for sale is determined using quoted secondary market prices or executed sales agreements. Management constantly evaluates its loan portfolio, in conjunction with asset/liability management practices, and will opt to sell certain loans, typically new 30-year residential mortgages, to manage the Company's interest rate exposure and for other business purposes, including generating fee income through mortgage sale gains. At December 31, 2017 and 2016, the fair value of loans designated as held for sale on its consolidated statements of condition were $8.1 million and $14.8 million, respectively.

Originated Loans and Acquired Loans. Loans are reported at amortized cost, or fair value in the case of acquired loans, adjusted for any partial charge-offs and net of any deferred loan fees or costs. For originated loans, interest income is accrued based upon the daily principal amount outstanding except for loans on non-accrual status. For acquired loans, interest income is also accrued based upon the daily principal amount outstanding and is then further adjusted by the accretion of any discount or amortization of any premium associated with the loan.

For originated loans, loan fees and certain direct origination costs are deferred and amortized into interest income over the contractual term of the loan using the level-yield method. When a loan is paid off, the unamortized portion is recognized in interest income.

A loan is classified as non-accrual generally when it becomes 90 days past due as to interest or principal payments, or sooner if management considers such action to be prudent. All previously accrued but unpaid interest on non-accrual loans is reversed from interest income in the period in which the loan is considered delinquent and the amortization of any unamortized net deferred origination loan fees/costs stops. Interest payments received on non-accrual loans, including impaired loans, are applied as a reduction of principal. A loan remains on non-accrual status until all principal and interest amounts contractually due are brought current and future payments are reasonably assured. Should a loan transition from non-accrual status back to accrual status, the unrecognized interest earned during the period the loan was on non-accrual status and unamortized deferred origination fees and costs are recognized over the remaining contractual life of the loan using the level-yield method.

ALL. The ALL is established through provisions for loan losses charged to income. Losses on loans, including impaired loans, are charged to the ALL when all or a portion of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the ALL when realized.

71

In determining the appropriate level of ALL, the Company uses a methodology to systematically measure the amount of estimated loan loss exposure inherent in the loan portfolio. The methodology includes three elements: (1) identification of loss allocations for certain specific loans, (2) loss allocation factors for certain loan types based on credit risk and loss experience, and (3) general loss allocations for other qualitative and environmental factors.

The allocations for specific loans is determined based on loans that have a principal balance of $500,000 or more that are classified as substandard or doubtful and are on non-accrual status. Effective January 1, 2017, the Company's internal policy for assessing specific loans for impairment was increased from $250,000 to $500,000. The qualitative factors for assessing a loan individually for impairment in accordance with the Company's internal policy were unchanged, and continue to require the loan to be classified as substandard or doubtful and on non-accrual status. For such loans that are also classified as impaired, an allowance is established when the discounted expected future cash flows (or collateral value or observable market price) of the impaired loan is lower than the recorded investment of that loan. Loans that do not meet the above criteria are separated into risk pools by portfolio segment and risk ratings. The Company then evaluates each risk pool collectively for impairment through loss allocation factors.

The Company uses a risk rating system for certain loan segments to determine the credit quality of these loan pools and applies the related loss allocation factors. In assessing the risk rating of a particular loan, the Company considers, among other factors, the obligor’s debt capacity, financial condition, the level of the obligor’s earnings, the amount and sources of repayment, the performance with respect to loan terms, the adequacy of collateral, the level and nature of contingent liabilities, management strength, and the industry in which the obligor operates. These factors are based on an evaluation of historical information, as well as subjective assessment and interpretation of current conditions. Emphasizing one factor over another, or considering additional factors that may be relevant in determining the risk rating of a particular loan but which are not currently an explicit part of the Company's methodology, could impact the risk rating assigned to that loan.

The Company at least annually, and more frequently as deemed prudent by management, reassesses and revises the loss allocation factors used in the assignment of loss exposure to appropriately reflect the analysis of loss experience. Portfolios of more homogeneous populations of loans including home equity and consumer loans are analyzed as groups taking into account delinquency rates and other economic conditions which may affect the ability of borrowers to meet debt service requirements, including interest rates and energy costs. The Company also considers regulatory guidance, historical loss ranges, portfolio composition, and other changes in the portfolio. An additional allocation is determined based on a judgmental process whereby management considers qualitative and quantitative assessments of other environmental factors.

Since the methodology is based upon historical experience and trends, as well as management’s judgment, factors may arise that result in different estimations. Significant factors that could give rise to changes in these estimates may include, but are not limited to, changes in economic conditions in the Company’s market areas, concentration of risk, declines in local property values, and regulatory guidance.

Loans past due 30 days or more are considered delinquent. In general, secured loans that are delinquent for 90 consecutive days are placed on non-accrual status, and are subject to impairment and/or loss assessment in accordance with established internal policy. In general, unsecured loans that are delinquent for 90 consecutive days are charged off.

In cases where a borrower experiences financial difficulties and the Company makes certain concessionary modifications to contractual terms, the loan is classified as a TDR. Modifications may include adjustments to interest rates, extensions of maturity, and other actions intended to minimize economic loss and avoid foreclosure or repossession of collateral. An allowance is established on a loan classified as a TDR if the present value of expected future cash flows (or, alternatively, the observable market price of the loan or the fair value of the collateral if the loan is collateral-dependent) is less than the recorded investment of the loan. Non-accrual loans that are restructured as TDRs remain on non-accrual status for a period of at least six months to demonstrate that the borrower can meet the restructured terms. If the restructured loan is on accrual status prior to being modified, it is reviewed to determine if the modified loan should remain on accrual status. If the borrower’s ability to meet the revised payment schedule is not reasonably assured, the loan is classified as a non-accrual loan. Loans classified as TDRs remain classified as such for the life of the loan, except in limited circumstances, when it is determined that the borrower is performing under the modified terms and the restructuring agreement specified an interest rate greater than or equal to an acceptable market rate for a comparable new loan at the time of the restructuring.

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Goodwill and Core Deposit Intangible Assets. Goodwill represents the excess cost of an acquisition over the fair value of the net assets acquired. Goodwill is not subject to amortization but rather is evaluated at least annually for impairment, or as events and circumstances dictate, at the reporting unit level. The Company's two reporting unit levels are (i) banking and (ii) financial services. The banking reporting unit is representative of the Company's core banking business line, while the financial services reporting unit is representative of the Company's wealth management and trust services business line. Any impairment is charged to non-interest expense on the consolidated statements of income.

Goodwill is evaluated for impairment annually as of November 30^th, or more frequently should external and/or internal factors warrant such. The Company may utilize a qualitative analysis (commonly referred to as "step zero") and/or a quantitative analysis to evaluate its reporting units' goodwill for impairment. The Company may utilize the qualitative analysis for an individual reporting unit or for both reporting units any given year. Furthermore, the Company has the option to by-pass the qualitative analysis for any given year and perform the quantitative analysis.

Using a qualitative analysis to assess a reporting unit's goodwill for impairment, the Company will consider various factors to determine if it is more-likely-than-not that a reporting unit's carrying value exceeds its fair value. These factors include, but are not limited to, the overall macro-economic environment; industry economic and regulatory environment; and company specific factors, including, but not limited to, performance, Company common stock share price, competition and/or significant changes in senior management. Should the Company determine it is more-likely-than-not that the carrying value of a reporting unit exceeds its fair value, then the Company would perform then perform the next step of the goodwill impairment test, which is a quantitative analysis. If the Company were to determine it is not more-likely-than-not that the carrying value of a reporting unit exceeds its fair value, the Company would have completed its goodwill impairment evaluation and concluded the reporting unit's goodwill was not impaired.

After performing the qualitative analysis and determining it's more-likely-than-not that the carrying value of a reporting unit exceeds its fair value or if the Company by-passed the qualitative analysis, it would perform a quantitative analysis to determine if the carrying value of a reporting unit exceeds its fair value. The Company may use various valuation techniques such as a discounted cash flow model, a comparative market transaction multiple approach and/or other valuation methods, to determine the reporting unit's fair value. If the fair value of the reporting unit is greater than its carrying value, then the reporting unit is not deemed to be impaired and no further assessment is required. However, if the fair value of the reporting unit is less than its carrying value, the Company would then be required to fair value the tangible and identifiable intangible assets, and liabilities of the reporting unit, to derive an implied fair value of goodwill for the reporting unit. If the implied fair value of goodwill for the reporting unit is greater than its carrying value, then the reporting unit’s goodwill is not impaired. However, if the reporting unit’s implied fair value of goodwill is less than its carrying value, an impairment charge is then recorded to carry goodwill at its calculated implied fair value.

The Company completed its annual goodwill impairment testing as of November 30, 2017, 2016 and 2015 for each reporting unit and goodwill was not impaired.

Core deposit intangible assets represents the estimated value of acquired customer relationships and is amortized on a straight-line basis over the estimated life of those relationships (5 to 10 years from the acquisition dates). Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If necessary, management will test the core deposit intangibles for impairment by comparing its carrying value to the expected undiscounted cash flows of the assets. If the undiscounted cash flows of the intangible assets exceed its carrying value then the intangible assets are deemed to be fully recoverable and not impaired. However, if the undiscounted cash flows of the intangible assets are less than its carrying value then management must compare the fair value of the intangible assets to its carrying value. If the fair value of the intangible assets exceeds its carrying value then the intangible assets are not impaired. If the fair value of the intangible assets is less than its carrying value then an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. For the year ended December 31, 2017, 2016 or 2015, there were no events or changes in circumstances that indicated the carrying amount may not be recoverable.

BOLI. BOLI represents the cash surrender value of life insurance policies on the lives of certain active and retired employees where the Company is the beneficiary and is recorded as an asset on the Company's consolidated statements of condition. Increases in the cash surrender values of the policies, as well as death benefits received, net of any cash surrender value, are recorded in non-interest income on the consolidated statements of income, and are not subject to income taxes. The Company reviews the financial strength of the insurance carriers prior to the purchase of life insurance policies and no less than annually thereafter. A life insurance policy with any individual carrier is limited to 15% of Tier I capital (as defined for regulatory purposes) and the total cash surrender value of life insurance policies is limited to 25% of Tier I capital.

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Premises and Equipment. Premises and equipment are stated at cost less accumulated depreciation. Acquired premises and equipment (through the acquisition of a company or branch acquisition) are stated at their estimated fair values as of the acquisition date less accumulated depreciation that occurred subsequent to the acquisition date. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the related assets. Leasehold improvements are amortized over the lesser of the term of the respective lease or the estimated life of the improvement. Land is carried at cost.

Software costs are stated at cost less accumulated depreciation within other assets on the consolidated statements of condition. Amortization expense is calculated using the straight-line method over the estimated useful lives of the related assets.

OREO. OREO properties acquired through foreclosure or deed-in-lieu of foreclosure are recorded initially at estimated fair value less estimated costs to sell. Any write-down of the recorded investment in the related loan is charged to the ALL upon transfer to OREO. Upon acquisition of a property, a current appraisal is used or an internal valuation is prepared to substantiate fair value of the property. Any subsequent declines in the fair value of a property are recorded as a valuation allowance on the asset. Any subsequent increases in the fair value of a property are recorded as reductions of the valuation allowance, but not below zero. Upon a sale of an OREO property, any excess of the carrying value over the sale proceeds is recognized as a loss on sale. Any excess of sale proceeds over the carrying value of the OREO property is first applied as a recovery to the valuation allowance, if any, with the remainder being recognized as a gain on sale. Operating expenses, including legal and other direct expenses, and changes in the valuation allowance relating to foreclosed assets are included in other non-interest expense on the consolidated statements of income.

Mortgage Banking. Residential real estate mortgages are originated by the Company both for its portfolio and for sale into the secondary market. The transfer of these financial assets is accounted for as a sale when control over the asset has been surrendered. Control is deemed to be surrendered when (i) the asset has been isolated from the Company, (ii) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred asset, and (iii) the Company does not maintain effective control over the transferred asset through an agreement to repurchase them before their maturity. The Company records the gain on sale of the financial asset within mortgage banking income, net on its consolidated statements of income, net of direct and indirect costs incurred to originate the loan.

Servicing assets are recognized as separate assets when servicing rights are acquired through the sale of residential mortgage loans with servicing rights retained. Capitalized servicing rights, which are reported in other assets on the consolidated statements of condition, are initially recorded at fair value and are amortized in proportion to, and over the period of, the estimated future servicing of the underlying mortgages (typically, the contractual life of the mortgage). The amortization of mortgage servicing rights is recorded as a reduction of loan servicing fee income within non-interest income on the consolidated statements of income.

Servicing assets are evaluated for impairment quarterly based upon the fair value of the rights as compared to amortized cost. Impairment is determined by stratifying rights by predominant characteristics, such as interest rates and terms. Fair value is determined using prices for similar assets with similar characteristics, when available, or based upon discounted cash flows using market-based assumptions. Impairment of the servicing assets is recognized through a valuation allowance to the extent that fair value is less than the capitalized amount. If it is later determined that all or a portion of the impairment no longer exists, a reduction of the allowance may be recorded increasing income, but not below zero.

Servicing fee income is recorded for fees earned for servicing loans for investors. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income within non-interest income on the consolidated statements of income when earned.

Short-Term and Long-Term Borrowings. Short-term borrowings consist of borrowings maturing within one year of the consolidated statement of condition date, while long-term borrowings consist of borrowings maturing in one or more years. The Company's borrowings include retail and wholesale repurchase agreements, FHLBB overnight and short-term borrowings, federal funds purchased, a capital lease, and line of credit advances. The Company is required to post collateral for certain borrowings, for which it, generally, posts loans and/or investment securities as collateral.

Income Taxes. Income taxes are accounted for using the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax implications attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. If current information suggests that it is not more likely than not that the Company will be able to realize the deferred tax assets, a valuation allowance is established. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those

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temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

The Company assesses quarterly whether or not a valuation allowance on its deferred tax assets is necessary. If it is more likely than not that the Company will not be able to realize the benefit of the deferred tax assets then a valuation allowance is established on the deferred tax asset not expected to be realized. At December 31, 2017 and 2016, the Company did not carry a valuation allowance on its deferred tax assets.

Effective January 1, 2016, the Company accounted for its windfall tax benefits and shortfalls, which are generated upon exercise of a non-qualified stock option or a disqualifying incentive stock option, within income tax expense on the consolidated statements of income as a discrete period item in the quarter generated.

EPS. Basic EPS excludes dilution and is computed by dividing net income applicable to common stock by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if certain securities or other contracts to issue common stock (such as stock options) were exercised or converted into additional common shares that would then share in the earnings of the Company. Diluted EPS is computed by dividing net income applicable to common stock by the weighted-average number of common shares outstanding for the period, plus an incremental number of common-equivalent shares computed using the treasury stock method.

Unvested share-based payment awards which include the right to receive non-forfeitable dividends are considered to participate with common stock in undistributed earnings for purposes of computing EPS. Restricted share grants and management stock purchase grants are considered participating securities for this purpose. Accordingly, the Company is required to calculate basic and diluted EPS using the two-class method. The calculation of EPS using the two-class method (i) excludes any dividends paid or owed on participating securities and any undistributed earnings considered to be attributable to participating securities from the numerator and (ii) excludes the dilutive impact of the participating securities from the denominator.

Effective September 30, 2016, the Company completed a three-for-two split of its common stock for shareholders of record as of September 15, 2016. As a result, the Company has adjusted its weighted-average shares outstanding, and basic and diluted EPS for the year ended December 31, 2015 as presented within Note 14 of the consolidated financial statements to account for the stock split. Refer to Note 13 of the consolidated financial statements for further details of the three-for-two stock split.

Postretirement Plans. The Company sponsors various retirement plans for current and former employees, including a SERP for certain officers of the Company and a postretirement health care and life insurance plan to certain eligible retired employees. The SERP and postretirement benefit plans are unfunded and have no plan assets, and the Company has recorded a liability on its consolidated statements of condition.

For the SERP, benefit obligations are estimated using the projected unit credit method. Under this method, each participant's benefits are attributed to years of service, taking into consideration future salary increases and the SERP's benefit allocation formula. Thus, the estimated total pension to which each participant is expected to become entitled to at retirement is broken down into units, each associated with a year of past or future credited service. For the SERP, an individual's estimated attributed benefit for valuation purposes related to a particular separation date is the benefit described under the SERP based on credited service as of the measurement date, but determined using the projected salary that would be used in the calculation estimate of the benefit on the expected separation date.

The Company has obligations with various active and retired employees related to certain postretirement benefits. The obligations are based on the employee's date of hire and years of service through retirement, with the associated cost recognized over the requisite service period. Under the plan, the postretirement benefits the amount the Company will pay for any given year for an individual is capped. Furthermore, the Company's obligation exists until the participant qualifies for Medicare. The accrual methodology results in an accrued amount at the full eligibility date equal to the then present value of all of the future benefits expected to be paid.

Net periodic benefits cost (credit) includes service costs and interest costs based on the assumed discount rate, amortization of prior service costs due to plan amendments and/or amortization of actuarial gains or losses. As prior service costs and actuarial gains or losses are amortized, they are reclassified from AOCI on the consolidated statements of condition into salaries and employee benefits on the consolidated statements of income. The amortization of actuarial gains and losses is determined using the 10% corridor minimum amortization approach and is taken over the average remaining future working lifetime of the plan participants.

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Stock-Based Compensation. The fair value of restricted stock awards, restricted stock units and stock options is determined on the grant date. For restricted stock awards and units, compensation is recognized ratably over the requisite service period equal to the fair value of the award. For stock option awards, the fair value is determined using the Black-Scholes option-pricing model. Compensation expense for stock option awards is recognized ratably over the requisite service period equal to the fair value of the award. For performance-based share awards, the Company estimates the degree to which performance conditions will be met to determine the number of shares that will vest and the related compensation expense. Compensation expense is adjusted in the period such estimates change.

The Company does not assume an estimated forfeiture rate on its nonvested share-based awards in its reporting of share-based compensation expense. Should a share-based award be forfeited, the Company would reverse all associated compensation expense previously recorded on the nonvested shares.

Off-Balance Sheet Credit Related Financial Instruments. In the ordinary course of business, the Company enters into commitments to extend credit, including commercial letters of credit and standby letters of credit. Such financial instruments are recorded as loans when they are funded.

Derivative Financial Instruments Designated as Hedges. The Company recognizes all derivatives in the consolidated statements of condition at fair value. On the date the Company enters into the derivative contract, the Company designates the derivative as a hedge of either a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”), a hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (“fair value hedge”), or a held for trading instrument (“trading instrument”). The Company formally documents relationships between hedging instruments and hedged items, as well as its risk management objectives and strategy for undertaking various hedge transactions. The Company also assesses, both at the hedge’s inception and on an ongoing basis, whether the derivatives that are used in hedging transactions are effective in offsetting changes in cash flows or fair values of hedged items. Changes in fair value of a derivative that is effective and that qualifies as a cash flow hedge are recorded in OCI and are reclassified into earnings when the forecasted transaction or related cash flows affect earnings. Changes in fair value of a derivative that qualifies as a fair value hedge and the change in fair value of the hedged item are both recorded in earnings and offset each other when the transaction is effective. Those derivatives that are classified as trading instruments are recorded at fair value with changes in fair value recorded in earnings. The Company discontinues hedge accounting when it determines that the derivative is no longer effective in offsetting changes in the cash flows of the hedged item, that it is unlikely that the forecasted transaction will occur, or that the designation of the derivative as a hedging instrument is no longer appropriate.

Segment Reporting. The Company, through its bank subsidiary, provides a broad range of financial services to individuals and companies primarily in Maine. These services include lending, checking, savings and time deposits, cash management, brokerage, wealth management and trust services. Substantially all of the Company's revenues, profits, and assets are derived by the Bank from banking products and services. The Company did not have any reportable segments for the year ended December 31, 2017, 2016 or 2015.

Recent Accounting Pronouncements.(The following recently issued accounting pronouncements are presented in chronological order of required adoption date for the Company. Should the Company have early adopted a recently issued accounting pronouncement it has been presented in the year of adoption.)

In February 2018, the FASB issued ASU No. 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulate Other Comprehensive Income ("ASU 2018-02"). ASU 2018-02 was issued to allow a reclassification from AOCI to retained earnings for stranded tax effects resulting from the Tax Act. The Company made a policy election to adopt ASU 2018-02 effective for its year ended December 31, 2017 consolidated financial statements, the period in which the effects of the change in the U.S. federal corporate income tax due to the Tax Act were recognized. The adoption of ASU 2018-02 resulted in a $3.5 million income reclassification from AOCI to retained earnings within its consolidated statements of condition and consolidated statements of shareholders' equity for the year ended December 31, 2017.

In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date ("ASU 2015-14"). ASU 2015-14 was issued to defer the effective date of ASU 2014-09, Revenue from Contracts with Customers (Topic 606) ("ASU 2014-09"), for all entities by one year. ASU 2014-09 was issued to clarify the principles for recognizing revenue and to develop a common revenue standard. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period.

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The Company adopted ASU 2014-09 effective January 1, 2018 using the modified-retrospective transition method. As part of its assessment, the Company concluded that the following material revenue streams were within the scope of ASU 2014-09: (i) service charges on deposit accounts; (ii) debit card interchange income; and (iii) income from fiduciary services and brokerage fees. Through the Company's assessment, it was determined that the impact of the adoption of ASU 2014-09 is not material to its financial statements. There will be no cumulative-effect adjustment to beginning shareholders' equity under the modified-retrospective transition method within the Company's first quarter 2018 financial reporting on Form 10-Q as there was no change in revenue recognition upon adoption of ASU 2014-09.

In January 2016, the FASB issued ASU No. 2016-01, Income Statement - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Liabilities ("ASU 2016-01"). ASU 2016-01 was issued to enhance the reporting model for financial instruments to provide the users of financial statements with more useful information for decisions. The Company adopted ASU 2016-01 effective January 1, 2018. Upon adoption, the Company will recognize unrealized gains and losses on its equity securities directly through the Company's consolidated statements of income, instead of reporting unrealized gains and losses on equity investments designated as AFS within AOCI. A cumulative-effect adjustment will occur to the Company's beginning shareholders' equity within its first quarter 2018 financial reporting on Form 10-Q to reclassify the unrealized gain reporting within AOCI at December 31, 2017 to retained earnings. The reclassification is immaterial to the Company's financial statements.

In addition, ASU 2016-01 also requires companies to utilize an "exit price" fair value methodology for purposes of disclosing the fair value of financial assets and liabilities not measured and reported at fair value on a recurring or non-recurring basis. The Company does not anticipate ASU 2016-01 will materially impact the Company's financial disclosures.

In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost ("ASU 2017-07"). ASU 2017-07 was issued to improve the presentation of net periodic pension cost and net periodic postretirement by companies to disaggregate the service cost component from the other components of net benefit cost, as well as provide other guidance to improve consistency, transparency and usefulness. Upon adoption in the first quarter of 2018, the Company will present and disclose the service cost component in the salaries and employee benefits line on its consolidated statements of income and the other components of net periodic benefit cost within other expenses on its consolidated statements of income. Upon adoption, the change in presentation will be applied retrospectively. The Company will use the amounts previously disclosed within its prior year financial statements as a practical expedient for retrospective presentation within its consolidated statements of income. The other provisions of ASU 2017-07 are not applicable to the Company. ASU 2017-07 will not have a material impact to its financial statements upon adoption.

In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting ("ASU 2017-09"). ASU 2017-09 was issued to provide clarification about which changes to the terms or conditions of a share-based payment award would require application of modification accounting in Topic 718. ASU 2017-09 is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in an interim period. ASU 2017-09 is to be applied prospectively effective as of the adoption date.

During the year ended December 31, 2017, the Company elected to early adopt ASU 2017-09, effective as of January 1, 2017. The Company has not had any modifications to its share-based awards for the year ended December 31, 2017.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). ASU 2016-02 was issued to increase transparency and comparability among organizations by recognizing lease assets and liabilities (including operating leases) on the balance sheet and disclosing key information about leasing arrangements. Current lease accounting does not require the inclusion of operating leases in the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, early application is permitted. The Company will adopt under a modified-retrospective approach.

Upon adoption, ASU 2016-02 will increase the Company's total assets and liabilities on its consolidated statements of condition as its operating leases will be accounted for as a right-of-use asset and a lease liability; however, the Company does not anticipate that upon adoption the ASU will have a material effect on its consolidated financial statements. The Company continues to evaluate the impact of adoption of this standard.

In March 2017, the FASB issued ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities ("ASU 2017-08"). ASU 2017-08 was issued to shorten the amortization period for certain callable debt securities purchased and carried at a premium, by requiring the premium to be

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amortized to the earliest call date of the debt security. ASU 2017-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The Company will adopt on a modified retrospective basis with any necessary adjustments to retained earnings as a cumulative-effect adjustment. While the Company continues to assess the impact of ASU 2017-08, it does not expect the ASU will have a material impact to its financial statements upon adoption.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12"). ASU 2017-12 was issued to make certain specific improvements to hedge accounting to better align hedge accounting with risk management activities, eliminate the separate measurement and recording of hedge ineffectiveness, improve presentation and disclosure, and other simplifications. ASU 2017-12 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. All transition requirements and elections are to be applied to existing hedging relationships upon adoption. While the Company continues to assess the impact of ASU 2017-12, it does not believe it will have a material impact on the Company's consolidated financial statements upon adoption.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). ASU 2016-13 was issued to require timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years, for public companies. Early adoption is permitted for annual periods beginning after December 15, 2018, including interim periods within that fiscal year. The Company will adopt the guidance under a modified-retrospective approach, whereby a cumulative-effect adjustment will be made to retained earnings upon adoption. The Company will use a prospective transition approach for debt securities for which an OTTI had been recognized before the effective date, as applicable.

While the Company continues to prepare for the adoption of ASU 2016-13 on January 1, 2020, it recognizes the changes to its consolidated financial statements upon adoption are imminent as the ASU requires:

• A change in the Company's assessment of its ALL and allowance on unused commitments as it will transition from an incurred loss model to an expected loss model, which may result in an increase in the ALL upon adoption and may negatively impact the Company and Bank's regulatory capital ratios.

• May reduce the carrying value of the Company's HTM investment securities as it will require an allowance on the expected losses over the life of these securities to be recorded upon adoption.

• Changes to the considerations when assessing AFS debt securities for OTTI, including (i) no longer considering the amount of time a security has been in an unrealized loss position and (ii) no longer considering the historical and implied volatility of a security and recoveries or declines in the fair value after the balance sheet date, as well as the presentation of OTTI as an allowance rather than a permanent write-down of the debt security.

• Changes to the disclosure requirements to reflect the transition from an incurred loss methodology to an expected credit loss methodology, as well as certain disclosures of credit quality indicators in relation to the amortized cost of financing receivables disaggregated by year of origination (or vintage).

The Company continues to assess the overall impact to its financial statements, and, at this time, it does not have an estimated impact to its financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"). ASU 2017-04 was issued to reduce the cost and complexity of the goodwill impairment test. To simplify the subsequent measurement of goodwill, step two of the goodwill impairment test was eliminated. Instead, in accordance with ASU 2017-04, a Company will recognize an impairment of goodwill should the carrying value of a reporting unit exceed its fair value (i.e. step one). ASU 2017-04 will be effective for the Company on January 1, 2020 and will be applied prospectively.

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2. Mergers and Acquisitions

Acadia Trust, N.A. — November 30, 2016

On November 30, 2016, the Company completed its merger of Acadia Trust, N.A., the Company's wholly-owned subsidiary, into the Bank, also the Company's wholly-owned subsidiary, and created a new wealth management and trust department of the Bank, Camden National Wealth Management. The merger did not qualify as a business combination and did not have any effect on the Company's consolidated financial condition.

Acquisition of SBM Financial, Inc. — October 16, 2015

On October 16, 2015, the Company completed its acquisition of 100% of SBM's common stock, through the completion of a two-step merger of Camden National Corporation, SBM and Atlantic Acquisitions, LLC, a wholly-owned subsidiary of Camden National Corporation (the "Merger"). The Merger qualified as a tax-free reorganization for federal income tax purposes and, pursuant to the terms and merger agreement, dated as of March 29, 2015, by and among Camden National Corporation, SBM and Atlantic Acquisitions, LLC ("Merger Agreement"), each share of SBM's common stock outstanding at the effective time of the acquisition was converted into the right to receive, at the election of the stockholder and subject to the allocation and proration procedures described in the Merger Agreement, either: (1) $206.00 in cash, without interest or (2) 8.132 shares of common stock of the Company; provided that 80% of the SBM shares outstanding immediately prior to the effective time of the acquisition were converted into the right to receive common stock of the Company and the remaining SBM shares were converted into the right to receive cash. The total consideration paid by the Company was $136.7 million, consisting of (i) $26.1 million in cash; (ii) 4,124,643 shares of Camden common stock valued at $108.6 million, based on the October 16, 2015 closing price of the Company's common stock of $26.32 per share; and (iii) the fair value of 139,032 non-qualified stock options issued under the 2012 Plan of $2.0 million. Pursuant to the Merger Agreement, all unexercised non-qualified stock options held by SBM option holders immediately vested upon completion of the acquisition and were to roll into the Company's non-qualified stock options using the 8.132 share conversion ratio (rounded down to the nearest whole share). The non-qualified stock options issued under the Company's 2012 Plan maintained the same terms and conditions as previously held under SBM's equity plan. The fair value of the non-qualified stock options approximated the intrinsic value of the non-qualified stock options at acquisition date.

The Merger complemented the Company's existing footprint within Maine, while expanding its presence in the higher growth Southern Maine market and into Massachusetts. In addition to providing incremental market share and increasing its presence within Southern Maine, the acquisition improved the Company's interest rate risk exposure in a rising rate environment through a larger mix of variable rate loans as percentage of total loans and additional core deposits (non-interest checking, interest checking, savings and money market accounts).

The Company accounted for the Merger using the acquisition method. The acquisition method requires the acquirer to recognize the assets acquired and the liabilities assumed at their fair values as of the acquisition date (with limited exceptions), and does not provide for acquisition expenses to be capitalized as part of the transaction.

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The Company incurred acquisition-related costs for the periods indicated as detailed below:

	For The Year Ended December 31,
	2017		2016		2015
Salaries and employee benefits(1)	$	—	$	8	$	3,240
Furniture, equipment and data processing	—		279		1,531
Net occupancy	—		439		1,237
Consulting and professional fees(2)	—		80		2,453
Other expenses(3)	—		60		1,954
Total merger and acquisition costs	$	—	$	866	$	10,415

(1) Includes the costs associated with pre-existing change-in-control agreements in place at the time of the Merger and employee termination costs, including severance.

(2) Includes the cost of a negotiated non-compete arrangement entered into in connection with the Merger of $400,000 in 2015.

(3) Other expenses include marketing and insurance costs, certain contract termination costs, various printing and mailing costs associated with various customer communications, and travel-related costs associated with the integration of the two companies in 2015.

Also in connection with the Merger, the Company incurred certain equity issuance costs totaling $612,000 related to the registration of additional shares of the Company's common stock. These costs have been accounted for as a reduction to shareholders' equity and have been presented as such within the Company's consolidated statements of changes in shareholders' equity for the year ended December 31, 2015.

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The following table summarizes the estimated fair value of the assets acquired and liabilities assumed as of the date of the acquisition:

	As Acquired		Fair Value Adjustments (Previously Reported)			Measurement-Period Adjustments		As Recorded at Acquisition
Consideration Paid:
Cash								$	26,125
Company common stock (4,124,643 shares at $26.32 per share)								108,561
Non-qualified stock options								1,990
Total consideration paid								136,676
Recognized identifiable assets acquired and liabilities assumed, at fair value:
Loans and loans held for sale	$	639,390	$	(11,497	)	$	137	628,030
Cash and due from banks	86,042		—			—		86,042
Investments	39,716		26			—		39,742
Deferred tax assets	26,293		(1,177		)	666		25,782
Premises and equipment	16,851		7,093			—		23,944
OREO	2,530		(1,801		)	—		729
Core deposit intangible assets	—		6,608			—		6,608
Other assets	5,421		(170		)	157		5,408
Deposits and borrowings	719,640		1,546			—		721,186
Other liabilities	8,512		(198		)	—		8,314
Total identified assets acquired and liabilities assumed, at fair value	$	88,091	$	(2,266	)	$	960	86,785
Goodwill								$	49,891

The Company completed its purchase accounting for the Merger by June 30, 2016. In connection with completion of its accounting for the acquisition, the Company made certain measurement-period adjustments that decreased goodwill reported at December 31, 2015 by $960,000. The measurement-period adjustments did not have a material effect on current year's net income nor will it have a material effect on future years' net income. The Company accounted for the measurement period adjustment prospectively in 2016 in accordance with ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments. Upon completion of purchase accounting, the Company recorded $49.9 million of goodwill in connection with the Merger, which was allocated to the Company's banking reporting unit. The goodwill generated represents the synergies expected from combining operations of the two organizations, including, but not limited to, systems conversion, consolidation of bank locations and operation centers, and reduced headcount across operation teams. The goodwill generated from the transaction is not deductible for tax purposes.

Fair value adjustments to assets acquired and liabilities assumed are generally amortized using an effective yield, straight-line basis, or other reasonable method consistent with the expected benefit over periods consistent with the estimated useful life or contractual term of the related assets and liabilities.

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3. Securities

The following tables summarize the amortized costs and estimated fair values of AFS and HTM securities, as of the dates indicated:

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
December 31, 2017:
AFS Securities:
Obligations of states and political subdivisions	$	7,232	$	103	$	—		$	7,335
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	510,176		597		(7,471		)	503,302
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	279,575		14		(6,790		)	272,799
Subordinated corporate bonds	5,484		173		—			5,657
Total AFS debt securities	802,467		887		(14,261		)	789,093
Equity securities	554		252		—			806
Total AFS securities	$	803,021	$	1,139	$	(14,261	)	$	789,899
HTM Securities:
Obligations of states and political subdivisions	$	94,073	$	1,077	$	(237	)	$	94,913
Total HTM securities	$	94,073	$	1,077	$	(237	)	$	94,913
December 31, 2016:
AFS Securities:
Obligations of states and political subdivisions	$	8,848	$	153	$	—		$	9,001
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	485,222		2,515		(7,115		)	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	289,046		265		(5,421		)	283,890
Subordinated corporate bonds	5,481		132		—			5,613
Total AFS debt securities	788,597		3,065		(12,536		)	779,126
Equity securities	632		109		—			741
Total AFS securities	$	789,229	$	3,174	$	(12,536	)	$	779,867
HTM Securities:
Obligations of states and political subdivisions	$	94,609	$	618	$	(631	)	$	94,596
Total HTM securities	$	94,609	$	618	$	(631	)	$	94,596

At December 31, 2017 and 2016, net unrealized losses on AFS securities included in AOCI amounted to $10.3 million, net of a deferred tax benefit of $2.8 million, and $6.1 million, net of a deferred tax benefit of $3.3 million, respectively.

Impaired Investment Securities

Management periodically reviews the Company’s investment portfolio to determine the cause, magnitude and duration of declines in the fair value of each security. Thorough evaluations of the causes of the unrealized losses are performed to determine whether the impairment is temporary or other-than-temporary in nature. Considerations such as the ability of the securities to meet cash flow requirements, levels of credit enhancements, risk of curtailment, and recoverability of invested amount over a reasonable period of time, and the length of time the security is in a loss position, for example, are applied in determining OTTI. Once a decline in value is determined to be other-than-temporary, the cost basis of the security is permanently reduced and a corresponding charge to earnings is recognized.

82

The following table presents the estimated fair values and gross unrealized losses of investment securities that were in a continuous loss position at December 31, 2017 and 2016, by length of time that individual securities in each category have been in a continuous loss position:

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2017:
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	221,466	$	(2,393	)	$	233,971	$	(5,078	)	$	455,437	$	(7,471	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	102,612		(696		)	164,389		(6,094		)	267,001		(6,790		)
Total AFS securities	$	324,078	$	(3,089	)	$	398,360	$	(11,172	)	$	722,438	$	(14,261	)
HTM Securities:
Obligations of states and political subdivisions	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
Total HTM securities	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
December 31, 2016:
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	348,579	$	(5,780	)	$	29,496	$	(1,335	)	$	378,075	$	(7,115	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	163,412		(2,906		)	74,212		(2,515		)	237,624		(5,421		)
Total AFS securities	$	511,991	$	(8,686	)	$	103,708	$	(3,850	)	$	615,699	$	(12,536	)
HTM Securities:
Obligations of states and political subdivisions	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)
Total HTM securities	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)

At December 31, 2017 and 2016, the Company held 209 investment securities with a fair value of $741.2 million and $658.5 million that were in an unrealized loss position totaling $14.5 million and $13.2 million, respectively, that are considered temporary. Of these, MBS and CMOs with a fair value of $398.4 million and $103.7 million were in an unrealized loss position, and have been in an unrealized loss position for 12 months or more totaling $11.2 million and $3.9 million at December 31, 2017 and 2016, respectively. The decline in the fair value of the debt securities is reflective of current interest rates in excess of the yield received on investments and was not indicative of an overall credit deterioration or other factors with the Company's investment portfolio. At December 31, 2017 and 2016, gross unrealized losses on the Company's AFS and HTM securities were 2% of the respective investment securities fair value.

The Company has the intent and ability to retain its investment securities in an unrealized loss position at December 31, 2017 until the decline in value has recovered.

83

Security Gains and Losses and OTTI of Securities

The following table details the Company’s sales of AFS investment securities, the gross realized gains and losses, and OTTI of securities:

	For The Year Ended December 31,
	2017			2016			2015
Proceeds from sales of securities	$	20,366		$	28,850		$	12,426
Gross realized gains	869			125			221
Gross realized losses	(14		)	(74		)	(217		)
Previously recorded OTTI	—			—			204

For the year ended December 31, 2017, 2016, and 2015, the Company sold certain AFS investment securities with a total carrying value of $19.5 million, $28.8 million, and $12.4 million, respectively, and recorded net gains on the sale of AFS securities of $855,000, $51,000, and $4,000, respectively, within non-interest income in the consolidated statements of income.

FHLBB and FRB Stock

As of December 31, 2017 and 2016, the Company's investment in FHLBB stock was $18.3 million and $17.8 million, respectively. At December 31, 2017 and 2016, the Company's investment in FRB stock was $5.4 million. At December 31, 2017 and 2016, there were no indications of impairment of the Company's investment in FHLBB or FRB stock.

For the year ended December 31, 2017, 2016 and 2015, the Company recorded dividend income from its investment in FHLBB and FRB stock of $1.1 million, $1.0 million and $579,000, respectively.

Securities Pledged

At December 31, 2017 and 2016, securities with an amortized cost of $702.5 million and $597.3 million, respectively, and estimated fair values of $691.2 million and $589.7 million, respectively, were pledged to secure FHLBB advances, public deposits, and securities sold under agreements to repurchase, and for other purposes required or permitted by law.

Contractual Maturities

The amortized cost and estimated fair values of securities by contractual maturity at December 31, 2017 are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Fair Value
AFS Securities
Due in one year or less	$	4,986	$	4,983
Due after one year through five years	104,294		103,572
Due after five years through ten years	212,809		209,663
Due after ten years	480,378		470,875
	$	802,467	$	789,093
HTM Securities
Due in one year or less	$	751	$	751
Due after one year through five years	4,705		4,721
Due after five years through ten years	10,110		10,192
Due after ten years	78,507		79,249
	$	94,073	$	94,913

84

4. Loans and Allowance for Loan Losses

The composition of the Company’s loan portfolio, excluding residential loans held for sale, at December 31, 2017 and 2016 was as follows:

	December 31,
	2017		2016
Residential real estate loans	$	858,369	$	802,494
Commercial real estate loans	1,164,023		1,050,780
Commercial loans	373,400		333,639
Home equity loans	323,378		329,907
Consumer loans	18,149		17,332
HPFC	45,120		60,412
Total loans	$	2,782,439	$	2,594,564

The loan balances for each portfolio segment presented above are net of their respective unamortized fair value mark discount on acquired loans and net of unamortized loan origination costs totaling:

	December 31,
	2017			2016
Net unamortized fair value mark discount on acquired loans	$	6,207		$	8,810
Net unamortized loan origination costs	(963		)	(66		)
Total	$	5,244		$	8,744

The Bank’s lending activities are primarily conducted in Maine, but also include a mortgage loan production office in Massachusetts and a commercial loan production office in New Hampshire. The Company originates single family and multi-family residential loans, commercial real estate loans, business loans, municipal loans and a variety of consumer loans. In addition, the Company makes loans for the construction of residential homes, multi-family properties and commercial real estate properties. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the level of overall economic activity within the geographic area and the general economy.

The HPFC loan portfolio consists of niche commercial lending to the small business medical field, including dentists, optometrists and veterinarians across the U.S. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the success of the borrower's business. In 2016, the Company closed HPFC's operations and is no longer originating loans.

The Bank, in the normal course of business, has made loans to certain officers, directors and their associated companies, under terms that are consistent with the Company’s lending policies and regulatory requirements. Loans, including any unused lines of credit, to related parties were as follows:

	December 31,
	2017			2016
Balance at beginning of year	$	15,942		$	16,628
Loans made/advanced and additions	230			434
Repayments and reductions	(3,032		)	(1,120		)
Balance at end of year	$	13,140		$	15,942

The ALL is management’s best estimate of the inherent risk of loss in the Company’s loan portfolio as of the consolidated statement of condition date. Management makes various assumptions and judgments about the collectability of the loan portfolio and provides an allowance for potential losses based on a number of factors including historical losses. If those assumptions are incorrect, the ALL may not be sufficient to cover losses and may cause an increase in the allowance in the future. Among the factors that could affect the Company’s ability to collect loans and require an increase to the allowance in the future are: (i) financial condition of borrowers; (ii) real estate market changes; (iii) state, regional, and national economic conditions; and (iv) a requirement by federal and state regulators to increase the provision for loan losses or recognize additional charge-offs.

85

The Board of Directors monitors credit risk through the Directors' Loan Review Committee, which reviews large credit exposures, monitors the external loan review reports, reviews the lending authority for individual loan officers when required, and has approval authority and responsibility for all matters regarding the loan policy and other credit-related policies, including reviewing and monitoring asset quality trends, concentration levels, and the ALL methodology. Credit Risk Administration and the Credit Risk Policy Committee oversee the Company's systems and procedures to monitor the credit quality of its loan portfolio, conduct a loan review program, maintain the integrity of the loan rating system, determine the adequacy of the ALL and support the oversight efforts of the Directors' Loan Review Committee and the Board of Directors. The Company's practice is to proactively manage the portfolio such that management can identify problem credits early, assess and implement effective work-out strategies, and take charge-offs as promptly as practical. In addition, the Company continuously reassesses its underwriting standards in response to credit risk posed by changes in economic conditions.

In conjunction with the Company's annual ALL policy review in the fourth quarter of 2017, the Company revised its methodology for calculating the ALL on construction and development loans before reaching permanent financing. This change in ALL methodology did not have a material impact on the Company's reported ALL as of December 31, 2017.

For purposes of determining the ALL, the Company disaggregates its loans into portfolio segments, which include residential real estate, commercial real estate, commercial, home equity, consumer and HPFC. Each portfolio segment possesses unique risk characteristics that are considered when determining the appropriate level of allowance. These risk characteristics unique to each portfolio segment include:

Residential Real Estate. Residential real estate loans held in the Company's loan portfolio are made to borrowers who demonstrate the ability to make scheduled payments with full consideration to underwriting factors. Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan-to-value ratios within established policy guidelines. Collateral consists of mortgage liens on one- to four-family residential properties.

Commercial Real Estate. Commercial real estate loans consist of mortgage loans to finance investments in real property such as multi-family residential, commercial/retail, office, industrial, hotels, educational, health care facilities and other specific use properties. Commercial real estate loans are typically written with amortizing payment structures. Collateral values are determined based upon appraisals and evaluations in accordance with established policy guidelines. Loan-to-value ratios at origination are governed by established policy and regulatory guidelines. Commercial real estate loans are primarily paid by the cash flow generated from the real property, such as operating leases, rents, or other operating cash flows from the borrower.

Commercial. Commercial loans consist of revolving and term loan obligations extended to business and corporate enterprises for the purpose of financing working capital and/or capital investment. Collateral generally consists of pledges of business assets including, but not limited to, accounts receivable, inventory, plant and equipment, and/or real estate, if applicable. Commercial loans are primarily paid by the operating cash flow of the borrower. Commercial loans may be secured or unsecured.

Home Equity. Home equity loans and lines are made to qualified individuals for legitimate purposes secured by senior or junior mortgage liens on owner-occupied one- to four-family homes, condominiums, or vacation homes. The home equity loan has a fixed rate and is billed as equal payments comprised of principal and interest. The home equity line of credit has a variable rate and is billed as interest-only payments during the draw period. At the end of the draw period, the home equity line of credit is billed as a percentage of the principal balance plus all accrued interest. Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan-to-value ratios within established policy guidelines.

Consumer. Consumer loan products including personal lines of credit and amortizing loans made to qualified individuals for various purposes such as education, auto loans, debt consolidation, personal expenses or overdraft protection. Borrower qualifications include favorable credit history combined with supportive income and collateral requirements within established policy guidelines. Consumer loans may be secured or unsecured.

HPFC. Prior to the Company's closing of HPFC's operations in 2016, it provided commercial lending to dentists, optometrists and veterinarians, many of which were start-up companies. HPFC's loan portfolio consists of term loan obligations extended for the purpose of financing working capital and/or purchase of equipment. Collateral consists of pledges of business assets including, but not limited to, accounts receivable, inventory, and/or equipment. These loans are primarily paid by the operating cash flow of the borrower and the terms range from seven to ten years.

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The following table presents the activity in the ALL and select loan information by portfolio segment for the year ended December 31, 2017, 2016, and 2015:

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Unallocated		Total
For The Year Ended   December 31, 2017:
ALL:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
Loans charged off	(482		)	(124		)	(1,014		)	(434		)	(124		)	(290		)	—		(2,468		)
Recoveries	30			141			301			2			17			6			—		497
Provision (credit)(1)	1,378			(308		)	1,129			605			159			63			—		3,026
Ending balance	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	—	$	24,171
ALL balance attributable loans:
Individually evaluated for impairment	$	568		$	1,441		$	—		$	—		$	—		$	—		$	—	$	2,009
Collectively evaluated for impairment	4,518			10,422			4,171			2,367			233			451			—		22,162
Total ending ALL	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	—	$	24,171
Loans:
Individually evaluated for impairment	$	5,171		$	6,199		$	1,791		$	429		$	—		$	—		$	—	$	13,590
Collectively evaluated for impairment	853,198			1,157,824			371,609			322,949			18,149			45,120			—		2,768,849
Total loan balances	$	858,369		$	1,164,023		$	373,400		$	323,378		$	18,149		$	45,120		$	—	$	2,782,439
For The Year Ended   December 31, 2016:
ALL:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	—	$	21,166
Loans charged off	(356		)	(315		)	(2,218		)	(308		)	(101		)	(507		)	—		(3,805		)
Recoveries	95			50			332			2			7			—			—		486
Provision (credit)(1)	(124		)	1,987			2,400			(231		)	82			1,155			—		5,269
Ending balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
ALL balance attributable loans:
Individually evaluated for impairment	$	483		$	1,373		$	—		$	86		$	—		$	65		$	—	$	2,007
Collectively evaluated for impairment	3,677			10,781			3,755			2,108			181			607			—		21,109
Total ending ALL	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
Loans:
Individually evaluated for impairment	$	4,348		$	13,317		$	2,028		$	457		$	7		$	97		$	—	$	20,254
Collectively evaluated for impairment	798,146			1,037,463			331,611			329,450			17,325			60,315			—		2,574,310
Total loan balances	$	802,494		$	1,050,780		$	333,639		$	329,907		$	17,332		$	60,412		$	—	$	2,594,564

87

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC		Unallocated			Total
For The Year Ended December 31, 2015:
ALL:
Beginning balance	$	4,899		$	7,951		$	3,354		$	2,247		$	281		$	—	$	2,384		$	21,116
Loans charged off	(801		)	(481		)	(655		)	(525		)	(154		)	—		—			(2,616		)
Recoveries	55			74			389			188			22			—		—			728
Provision (credit)(1)	392			2,888			153			821			44			24		(2,384		)	1,938
Ending balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24	$	—		$	21,166
ALL balance attributable loans:
Individually evaluated for impairment	$	544		$	644		$	92		$	89		$	—		$	—	$	—		$	1,369
Collectively evaluated for impairment	4,001			9,788			3,149			2,642			193			24		—			19,797
Total ending ALL	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24	$	—		$	21,166
Loans:
Individually evaluated for impairment	$	6,026		$	4,610		$	3,937		$	588		$	74		$	—	$	—		$	15,235
Collectively evaluated for impairment	814,591			923,341			293,784			348,046			17,879			77,330		—			2,474,971
Total loan balances	$	820,617		$	927,951		$	297,721		$	348,634		$	17,953		$	77,330	$	—		$	2,490,206

(1) The provision (credit) for loan losses excludes any impact for the change in the reserve for unfunded commitments, which represents management's estimate of the amount required to reflect the probable inherent losses on outstanding letters of credit and unused lines of credit. The reserve for unfunded commitments is presented within accrued interest and other liabilities on the consolidated statements of condition. At December 31, 2017, 2016, and 2015, the reserve for unfunded commitments was $20,000, $11,000 and $22,000, respectively.

The following table reconciles the year ended December 31, 2017, 2016, and 2015 provision for loan losses to the provision for credit losses as presented on the consolidated statement of income:

	For the Year Ended December 31,
	2017		2016			2015
Provision for loan losses	$	3,026	$	5,269		$	1,938
Change in reserve for unfunded commitments	9		(11		)	(2		)
Provision for credit losses	$	3,035	$	5,258		$	1,936

The Company focuses on maintaining a well-balanced and diversified loan portfolio. Despite such efforts, it is recognized that credit concentrations may occasionally emerge as a result of economic conditions, changes in local demand, natural loan growth and runoff. To ensure that credit concentrations can be effectively identified, all commercial and commercial real estate loans are assigned Standard Industrial Classification codes, North American Industry Classification System codes, and state and county codes. Shifts in portfolio concentrations are monitored by the Company's Credit Risk Administration. As of December 31, 2017, the non-residential building operators' industry concentration was 11% of the Company's total loan portfolio and 27% of the total commercial real estate portfolio. There were no other industry concentrations exceeding 10% of the Company's total loan portfolio as of December 31, 2017.

88

 To further identify loans with similar risk profiles, the Company categorizes each portfolio segment into classes by credit risk characteristic and applies a credit quality indicator to each portfolio segment. The indicators for commercial, commercial real estate and residential real estate loans are represented by Grades 1 through 10 as outlined below. In general, risk ratings are adjusted periodically throughout the year as updated analysis and review warrants. This process may include, but is not limited to, annual credit and loan reviews, periodic reviews of loan performance metrics, such as delinquency rates, and quarterly reviews of adversely risk rated loans. The Company uses the following definitions when assessing grades for the purpose of evaluating the risk and adequacy of the ALL:

• Grade 1 through 6 — Grades 1 through 6 represent groups of loans that are not subject to adverse criticism as defined in regulatory guidance. Loans in these groups exhibit characteristics that represent low to moderate risks, which is measured using a variety of credit risk criteria, such as cash flow coverage, debt service coverage, balance sheet leverage, liquidity, management experience, industry position, prevailing economic conditions, support from secondary sources of repayment and other credit factors that may be relevant to a specific loan. In general, these loans are supported by properly margined collateral and guarantees of principal parties.

• Grade 7 — Loans with potential weakness (Special Mention). Loans in this category are currently protected based on collateral and repayment capacity and do not constitute undesirable credit risk, but have potential weakness that may result in deterioration of the repayment process at some future date. This classification is used if a negative trend is evident in the obligor’s financial situation. Special mention loans do not sufficiently expose the Company to warrant adverse classification.

• Grade 8 — Loans with definite weakness (Substandard). Loans classified as substandard are inadequately protected by the current sound worth and paying capacity of the obligor or by collateral pledged. Borrowers experience difficulty in meeting debt repayment requirements. Deterioration is sufficient to cause the Company to look to the sale of collateral.

• Grade 9 — Loans with potential loss (Doubtful). Loans classified as doubtful have all the weaknesses inherent in the substandard grade with the added characteristic that the weaknesses make collection or liquidation of the loan in full highly questionable and improbable. The possibility of some loss is extremely high, but because of specific pending factors that may work to the advantage and strengthening of the asset, its classification as an estimated loss is deferred until its more exact status may be determined.

• Grade 10 — Loans with definite loss (Loss). Loans classified as loss are considered uncollectible. The loss classification does not mean that the asset has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off the asset because recovery and collection time may be protracted.

Asset quality indicators are periodically reassessed to appropriately reflect the risk composition of the Company’s loan portfolio. Home equity and consumer loans are not individually risk rated, but rather analyzed as groups taking into account delinquency rates and other economic conditions which may affect the ability of borrowers to meet debt service requirements, including interest rates and energy costs. Performing loans include loans that are current and loans that are past due less than 90 days. Loans that are past due over 90 days and non-accrual loans, including TDRs, are considered non-performing.

89

The following table summarizes credit risk exposure indicators by portfolio segment as of the following dates:

	Residential Real Estate		Commercial Real Estate		Commercial		Home Equity		Consumer		HPFC		Total
December 31, 2017:
Pass (Grades 1 – 6)	$	846,394	$	1,130,235	$	354,904	$	—	$	—	$	43,049	$	2,374,582
Performing	—		—		—		321,727		18,149		—		339,876
Special Mention (Grade 7)	922		9,154		12,517		—		—		191		22,784
Substandard (Grade 8)	11,053		24,634		5,979		—		—		1,880		43,546
Non-performing	—		—		—		1,651		—		—		1,651
Total	$	858,369	$	1,164,023	$	373,400	$	323,378	$	18,149	$	45,120	$	2,782,439
December 31, 2016:
Pass (Grades 1 – 6)	$	789,554	$	1,003,386	$	321,148	$	—	$	—	$	58,943	$	2,173,031
Performing	—		—		—		328,287		17,328		—		345,615
Special Mention (Grade 7)	2,387		5,724		5,598		—		—		257		13,966
Substandard (Grade 8)	10,553		41,670		5,437		—		—		1,212		58,872
Doubtful (Grade 9)	—		—		1,456		—		—		—		1,456
Non-performing	—		—		—		1,620		4		—		1,624
Total	$	802,494	$	1,050,780	$	333,639	$	329,907	$	17,332	$	60,412	$	2,594,564

The Company closely monitors the performance of its loan portfolio. A loan is placed on non-accrual status when the financial condition of the borrower is deteriorating, payment in full of both principal and interest is not expected as scheduled or principal or interest has been in default for 90 days or more. Exceptions may be made if the asset is well-secured by collateral sufficient to satisfy both the principal and accrued interest in full and collection is reasonably assured. When one loan to a borrower is placed on non-accrual status, all other loans to the borrower are re-evaluated to determine if they should also be placed on non-accrual status. All previously accrued and unpaid interest is reversed at this time. A loan will return to accrual status when collection of principal and interest is assured and the borrower has demonstrated timely payments of principal and interest for a reasonable period. Unsecured loans, however, are not normally placed on non-accrual status because they are charged-off once their collectability is in doubt.

The following is a loan aging analysis by portfolio segment (including loans past due over 90 days and non-accrual loans) and a summary of non-accrual loans, which include TDRs, and loans past due over 90 days and accruing as of the following dates:

	30 –  59 Days Past Due		60 – 89 Days Past Due		Greater Than 90 Days		Total Past Due		Current		Total Loans Outstanding		Loans > 90 Days Past Due and Accruing		Non-Accrual Loans
December 31, 2017:
Residential real estate	$	3,871	$	1,585	$	4,021	$	9,477	$	848,892	$	858,369	$	—	$	4,979
Commercial real estate	849		323		5,528		6,700		1,157,323		1,164,023		—		5,642
Commercial	329		359		1,535		2,223		371,177		373,400		—		2,000
Home equity	1,046		173		1,329		2,548		320,830		323,378		—		1,650
Consumer	57		10		—		67		18,082		18,149		—		—
HPFC	139		1,372		419		1,930		43,190		45,120		—		1,043
Total	$	6,291	$	3,822	$	12,832	$	22,945	$	2,759,494	$	2,782,439	$	—	$	15,314
December 31, 2016:
Residential real estate	$	1,783	$	924	$	2,904	$	5,611	$	796,883	$	802,494	$	—	$	3,945
Commercial real estate	855		223		12,625		13,703		1,037,077		1,050,780		—		12,849
Commercial	633		218		1,675		2,526		331,113		333,639		—		2,088
Home equity	892		134		1,321		2,347		327,560		329,907		—		1,620
Consumer	38		—		4		42		17,290		17,332		—		4
HPFC	438		688		110		1,236		59,176		60,412		—		207
Total	$	4,639	$	2,187	$	18,639	$	25,465	$	2,569,099	$	2,594,564	$	—	$	20,713

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Interest income that would have been recognized if loans on non-accrual status had been current in accordance with their original terms for the year ended December 31, 2017, 2016, and 2015 was $843,000, $888,000, and $586,000, respectively.

TDRs:

The Company takes a conservative approach with credit risk management and remains focused on community lending and reinvesting. The Company works closely with borrowers experiencing credit problems to assist in loan repayment or term modifications. TDR loans consist of loans where the Company, for economic or legal reasons related to the borrower’s financial difficulties, granted a concession to the borrower that it would not otherwise consider. TDRs, typically, involve term modifications or a reduction of either interest or principal. Once such an obligation has been restructured, it will remain a TDR until paid in full, or until the loan is again restructured at current market rates and no concessions are granted.

The specific reserve allowance was determined by discounting the total expected future cash flows from the borrower at the original loan interest rate, or if the loan is currently collateral-dependent, using the net realizable value, which was obtained through independent appraisals and internal evaluations. The following is a summary of TDRs, by portfolio segment, and the associated specific reserve included within the ALL as of December 31:

	Number of Contracts		Recorded Investment				Specific Reserve
	2017	2016	2017		2016		2017		2016
Residential real estate	24	21	$	3,604	$	3,221	$	452	$	483
Commercial real estate	3	3	976		1,008		16		—
Commercial	7	10	1,345		1,502		—		—
Consumer and home equity	2	1	307		16		—		—
Total	36	35	$	6,232	$	5,747	$	468	$	483

At December 31, 2017, the Company had performing and non-performing TDRs with a recorded investment balance of $5.0 million and $1.2 million, respectively. At December 31, 2016, the Company had performing and non-performing TDRs with a recorded investment balance of $4.3 million and $1.4 million, respectively.

The following represents loan modifications that occurred for the year ended December 31, 2017, 2016 and 2015 that qualify as TDRs and the type of loan modification made by portfolio segment at December 31:

	Number of Contracts			Pre-Modification Outstanding Recorded Investment						Post-Modification Outstanding Recorded Investment						Specific Reserve
	2017	2016	2015	2017		2016		2015		2017		2016		2015		2017		2016		2015
Residential real estate:
Maturity concession	2	—	—	$	298	$	—	$	—	$	298	$	—	$	—	$	15	$	—	$	—
Court ordered	—	—	1	—		—		74		—		—		78		—		—		27
Interest rate concession	1	—	—	134		—		—		145		—		—		—		—		—
Interest rate and maturity concession	1	—	—	148		—		—		156		—		—		30		—		—
Commercial:
Maturity concession	—	6	—	—		2,973		—		—		2,973		—		—		1,400		—
Home equity:
Interest rate and maturity concession	1	—	—	315		—		—		315		—		—		—		—		—
Total	5	6	1	$	895	$	2,973	$	74	$	914	$	2,973	$	78	$	45	$	1,400	$	27

In 2016, the Company completed the restructure of one commercial relationship, which included six individual commercial loans, and recorded a specific reserve of $1.4 million at the time of the restructure. In 2016, subsequent to the loan modification, the $1.4 million specific reserve established on the relationship was fully charged-off and, at December 31, 2017 and 2016, the Company did not carry a specific reserve on this relationship. As part of the restructure, the Company committed to lend additional funds of up to $280,000. At December 31, 2017 and 2016, the Company had loaned $22,000 and $47,000, respectively, on its commitment. The Company did not have any other commitments to lend additional funds to borrowers with loans classified as TDRs as of December 31, 2017.

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For the year ended December 31, 2017, 2016 and 2015, the Company did not have any loans that had been modified as a TDR within the previous 12 months and for which the borrower subsequently defaulted for the periods indicated.

Impaired Loans:

Impaired loans consist of non-accrual and TDR loans that are individually evaluated for impairment in accordance with the Company's policy. The following is a summary of impaired loan balances and the associated allowance by portfolio segment as of and for the year ended December 31, 2017, 2016 and 2015:

	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2017:
With related allowance recorded:
Residential real estate	$	3,858	$	3,858	$	568	$	3,177	$	131
Commercial real estate	5,422		5,422		1,441		8,900		22
Commercial	—		—		—		31		—
Home equity	—		—		—		125		—
Consumer	—		—		—		—		—
HPFC	—		—		—		24		—
Ending balance	9,280		9,280		2,009		12,257		153
Without related allowance recorded:
Residential real estate	1,313		1,673		—		1,345		15
Commercial real estate	777		1,084		—		1,132		29
Commercial	1,791		2,964		—		1,920		10
Home equity	429		495		—		310		8
Consumer	—		—		—		2		—
HPFC	—		—		—		—		—
Ending balance	4,310		6,216		—		4,709		62
Total impaired loans	$	13,590	$	15,496	$	2,009	$	16,966	$	215
December 31, 2016:
With related allowance recorded:
Residential real estate	$	3,019	$	3,019	$	483	$	3,088	$	106
Commercial real estate	11,443		11,443		1,373		5,165		—
Commercial	—		—		—		762		—
Home equity	299		299		86		305		—
Consumer	—		—		—		—		—
HPFC	97		97		65		98		—
Ending balance	14,858		14,858		2,007		9,418		106
Without related allowance recorded:
Residential real estate	1,329		1,800		—		2,057		9
Commercial real estate	1,874		2,369		—		2,214		51
Commercial	2,028		3,209		—		2,507		16
Home equity	158		368		—		180		—
Consumer	7		10		—		12		—
HPFC	—		—		—		—		—
Ending balance	5,396		7,756		—		6,970		76
Total impaired loans	$	20,254	$	22,614	$	2,007	$	16,388	$	182

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	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2015:
With related allowance recorded:
Residential real estate	$	3,191	$	3,191	$	544	$	6,064	$	112
Commercial real estate	1,825		1,857		644		1,753		—
Commercial	156		156		92		945		2
Home equity	303		303		89		900		—
Consumer	—		—		—		195		—
HPFC	—		—		—		—		—
Ending balance	5,475		5,507		1,369		9,857		114
Without related allowance recorded:
Residential real estate	2,835		4,353		—		2,175		8
Commercial real estate	2,785		3,426		—		2,719		65
Commercial	3,781		4,325		—		1,412		17
Home equity	285		688		—		369		—
Consumer	74		150		—		20		—
HPFC	—		—		—		—		—
Ending balance	9,760		12,942		—		6,695		90
Total impaired loans	$	15,235	$	18,449	$	1,369	$	16,552	$	204

In-Process Foreclosure Proceedings:

At December 31, 2017 and 2016, the Company had $1.9 million and $1.4 million of consumer mortgage loans secured by residential real estate properties for which foreclosure proceedings were in process. The Company continues to be focused on working these consumer mortgage loans through the foreclosure process to resolution; however, the foreclosure process, typically, will take 18 to 24 months due to the State of Maine foreclosure laws.

5. Goodwill

The changes in goodwill for the year ended December 31, 2017 and 2016 for each reporting unit are shown in the table below:

	Banking			Financial Services			Total
Balance as of January 1, 2016:
Goodwill	$	91,753		$	7,474		$	99,227
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	91,753			3,904			95,657
Measurement-period adjustment (Note 2)	(960		)	—			(960		)
Balance as of December 31, 2016:
Goodwill	90,793			7,474			98,267
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	$	90,793		$	3,904		$	94,697
Balance as of January 1 and December 31, 2017:
Goodwill	$	90,793		$	7,474		$	98,267
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	$	90,793		$	3,904		$	94,697

The Company performs its annual goodwill impairment assessment as of November 30^th, and at interim periods if indicators of potential impairment exist. The Company completed its annual goodwill impairment test as of November 30, 2017, 2016 and 2015 for each reporting unit and determined there was no goodwill impairment.

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6. Other Intangible Assets

The gross carrying amount and accumulated amortization of other intangible assets were as follows at the periods indicated:

	December 31,
	2017							2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core deposit intangible	$	23,908	$	(18,953	)	$	4,955	$	23,908	$	(17,220	)	$	6,688
Trust relationship intangible	753		(753		)	—		753		(677		)	76
Total	$	24,661	$	(19,706	)	$	4,955	$	24,661	$	(17,897	)	$	6,764

For the year ended December 31, 2017, 2016 and 2015, the Company recorded amortization expense of $1.8 million, $1.9 million and $1.3 million, respectively.

The following table reflects the expected amortization schedule for other intangible assets over the period of estimated economic benefit (assuming no additional intangible assets are created or impaired):

	Core Deposit Intangible
2018	$	725
2019	705
2020	682
2021	655
2022	625
Thereafter	1,563
Total	$	4,955

7. Premises and Equipment

Details of premises and equipment, at cost, for the periods indicated, were as follows:

	2017			2016
Land and land improvements	$	2,985		$	3,012
Buildings and leasehold improvements	37,054			36,958
Furniture, fixtures and equipment	36,053			34,043
Total cost	76,092			74,013
Accumulated depreciation and amortization	(34,201		)	(31,140		)
Net premises and equipment	$	41,891		$	42,873

Depreciation and amortization expense for the periods indicated were as follows:

		For The Year Ended December 31,
Fixed Asset Type	Income Statement Line Item	2017		2016		2015
Equipment and data	Furniture, equipment and data processing	$	1,874	$	1,942	$	1,620
Premises	Net occupancy costs	1,643		1,757		1,140
Software	Furniture, equipment and data processing	244		275		337
Equipment, data and premises	Merger and acquisition costs	—		452		517
Total		$	3,761	$	4,426	$	3,614

At December 31, 2017 and 2016, the Company has capitalized software costs of $3.8 million and $3.6 million, respectively, and related accumulated depreciation expense of $3.5 million and $3.2 million, respectively, and was presented within other assets on the consolidated statements of condition.

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Included in merger and acquisition costs on the consolidated statements of income for the year ended December 31, 2015 was $1.1 million of fixed asset disposal costs incurred as a result of the acquisition of SBM.

The Company did not have any material gains or losses from the sale of premises and equipment for the year ended December 31, 2017, 2016 or 2015.

The Company enters into noncancellable lease arrangements primarily for its office buildings and branches. Certain lease arrangements contain clauses requiring increasing rental payments over the lease term, which may be indexed to an index (commonly the Consumer Price Index) or the increases may be contractually stipulated. Furthermore, many of these lease arrangements provide the Company with the option to renew the lease arrangement after the initial lease term. The Company incurred expenses of $1.5 million, $1.8 million and $1.7 million for the year ended December 31, 2017, 2016 and 2015, respectively, associated with its operating lease arrangements.

The Company has one capital lease for a branch with payments that extend until 2026 at an interest rate of 9.75% per year. The capital lease, recorded in premises and equipment, has a cost basis of $855,000 at December 31, 2017 and 2016 and accumulated depreciation of $502,000 and $459,000 at December 31, 2017 and 2016, respectively. The associated depreciation expense was reported within net occupancy costs on the consolidated statements of income.

In connection with the SBM acquisition, the Company assumed a lease arrangement between SBM wholly-owned subsidiary, The Bank of Maine, and two of its employees. The lease is for a period of five years with an expiration date of December 1, 2019 with two consecutive five year extension periods available at the option of the Company. The lease arrangement contains certain termination clauses whereby the Company has the right to terminate the lease arrangement should the employees be terminated and/or certain mortgage loan production metrics not be met over a consecutive 12 month period.

At December 31, 2017, under current operating and capital lease contracts, the Company had the following schedule of future minimum lease payments:

	Operating		Capital
2018	$	1,429	$	126
2019	1,394		126
2020	888		126
2021	671		130
2022	484		131
Thereafter	1,531		425
Total minimum lease payments	$	6,397	1,064
Less: amount representing interest(1)			273
Present value of net minimum lease payments(2)			$	791

(1) Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate at lease inception.

(2) Reflects the liability reported within short- and long-term borrowings on the consolidated statements of condition. At December 31, 2017 and 2016, the capital lease liability was $791,000 and $858,000, respectively.

8. Mortgage Banking

Loans Sold

For the year ended December 31, 2017, 2016 and 2015, the Company sold $218.6 million, $232.2 million and $61.2 million, respectively, of residential mortgage loans on the secondary market, which resulted in a net gain on sale of loans (net of costs, including direct and indirect origination costs) of $6.3 million, $6.2 million, and $1.3 million, respectively.

Loans Held for Sale

At December 31, 2017 and 2016, the Company had identified and designated loans with an unpaid principal balance of $8.1 million and $15.1 million, respectively, as held for sale. The Company has elected the fair value option for its loans designated as held for sale, and, at December 31, 2017 and 2016, the unrealized gain (loss) recorded was $37,000 and ($289,000), respectively. The unrealized gain or loss on its loans held for sale portfolio was driven by changes in market

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interest rates and not due to deteriorated credit quality as this risk is mitigated by the short duration between the time of the loan closed and transfer of the financial assets to the secondary market investor. Included within the Company's mortgage banking income, net on its consolidated statements of income for the year ended December 31, 2017, 2016 and 2015 was the change in unrealized gains (losses) on loans held for sale of $326,000, $(422,000) and $133,000, respectively.

The Company mitigates its interest rate exposure on its loans designated as held for sale through forward delivery commitments with certain approved secondary market investors at the onset of the mortgage origination process, typically on a best-efforts basis. For the year ended December 31, 2017, 2016 and 2015, the Company recorded gains (losses) on its forward delivery commitments of ($136,000), $278,000, and $0, respectively. Refer to Note 18 for further discussion of the Company's forward delivery commitments.

Servicing Assets

At December 31, 2017 and 2016, the Company's unpaid principal balances on its servicing assets were $275.2 million and $332.7 million, respectively.

For the year ended December 31, 2017, 2016 and 2015, the Company recorded servicing fee income for its servicing assets of $1.0 million, $1.1 million and $597,000, respectively, and was presented in mortgage banking income, net on the consolidated statements of income.

The Company's servicing assets, net of a valuation allowance, included in other assets on the consolidated statements of condition at December 31, 2017 and 2016 was $1.0 million and $1.2 million, respectively.

The Company obtains third party valuations of its servicing assets portfolio quarterly. The servicing assets valuation is based on loan level data stratified by note rate of the underlying loans to determine its amortization and fair value. A discounted cash flow model is used to value each servicing asset strata and it incorporates current market assumption commonly used by buyers of these types of mortgage production in U.S. servicing markets. The calculated valuation using the discounted cash flow method is then compared to recent servicing trades on portfolios with similar characteristics in the U.S. The valuation model utilizes a variety of assumptions, the most significant of which are loan prepayment assumptions and the discount rate used to discount future cash flows. At December 31, 2017 and 2016, the prepayment assumption used within the valuation model was 14.0% and 14.6%, respectively, and the discount rate was 11.2% and 7.8%. The estimated effect of a 10% and 20% increase to the prepayment assumption at December 31, 2017 was a decrease of $76,000 and $148,000, respectively, while a 100 and 200 basis points increase to the discount rate assumption was a decrease of $54,000 and $105,000. Other assumptions include, but are not limited to, delinquency rates, foreclosure rates, and loan servicing cost.

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The following summarizes servicing assets capitalized and amortized, along with the activity in the related valuation allowance:

	As of and For The Year Ended December 31,
	2017			2016			2015
Servicing Assets:
Balance at beginning of year	$	1,210		$	2,161		$	493
Capitalized servicing right fees upon sale(1)	22			9			294
Acquired in connection with acquisition of SBM, at fair value	—			—			1,608
Amortization charged against mortgage servicing fee income(1)	(430		)	(734		)	(231		)
Valuation adjustment	223			(226		)	(3		)
Balance at end of year	$	1,025		$	1,210		$	2,161
Valuation Allowance:
Balance at beginning of year	$	(230	)	$	(4	)	$	(1	)
(Increase) decrease in impairment reserve(1)	223			(226		)	(3		)
Balance at end of year	$	(7	)	$	(230	)	$	(4	)
Fair value, beginning of year	$	1,701		$	2,947		$	1,447
Fair value, end of year	$	1,766		$	1,701		$	2,947

(1) Reported within mortgage banking income, net on the Company's consolidated statements of income.

Sub-Serviced Loans

Mortgage loans serviced for third party investors, for which the Company acts in a sub-servicer capacity and, therefore, does not have a corresponding servicing asset, are not reported as assets of the Company on its consolidated statements of condition. The unpaid principal balance on mortgage loans serviced for investors at December 31, 2017 and 2016 was $349.7 million and $930.8 million, respectively. Custodial escrow balances maintained in connection with the foregoing loan servicing for investors, and included in demand deposits on the Company's consolidated statements of condition, were $4.2 million and $11.9 million at December 31, 2017 and 2016, respectively. The Company recognized sub-servicing fee income, including related loan fees, for the years ended December 31, 2017, 2016 and 2015 of $12,000, $1.7 million, and $1.2 million. Effective close of business on December 31, 2016, the Company exited a significant sub-servicer relationship.

As part of its agreement to service loans for investors and its own loan portfolio, the Company is required to ensure the good-standing and priority lien position of the collateral for its mortgage loans. In doing so, the Company will advance borrower escrows and incur certain costs that are reimbursable by the borrowers, investors or other means, including mortgage insurance companies and governmental-backed agencies. At December 31, 2017 and 2016, the Company advanced escrow balances of $194,000 and $2.0 million, respectively, and had a receivable of $58,000 and $2.7 million, respectively, for the aforementioned services. At December 31, 2017 and 2016, the Company carried an allowance on the aforementioned receivable of $0 and $829,000, respectively. The Company estimated the allowance on its receivable utilizing historical claim and reimbursement information, as well as information through ongoing negotiations with its investors. The Company has presented its advanced escrows and aforementioned net receivable within other assets on the Company's consolidated statements of condition.

In addition to fees earned for servicing the portfolios of investors, servicer guides impose certain time-lines for resolving delinquent loans through workout efforts or liquidation and impose compensatory fees on the Company if those deadlines are not satisfied other than for reasons beyond our control. The investors also have a contractual right to demand indemnification or loan repurchase for certain servicing breaches. For example, the Company would be required to indemnify the investors for or against failures by the Company to perform its servicing obligations or acts or omissions that involve willful malfeasance, bad faith or gross negligence in the performance of, or reckless disregard of, its duties. The Company records expenses for servicing-related claims and loan repurchases when it is probable that such claims or repurchases will be made and the amounts are reasonably estimable.

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Servicer and Sub-Servicer Net Worth and Liquidity Requirements

The Bank, as a servicer and sub-servicer of loans, must maintain certain net worth and liquidity requirements for certain secondary market investors, including the U.S. Department of Housing and Urban Development ("HUD"), the Federal National Mortgage Association ("FNMA") and the Federal Home Loan Mortgage Corporation ("FHLMC").

The Bank is required to maintain a minimum net worth of $1.0 million plus 1.0% of total Federal Housing Authority ("FHA") loans exceeding $25.0 million ("minimum net worth required") and maintain liquid assets equal to at least 20.0% of its minimum net worth required.

The Bank is required to maintain a minimum net worth of $2.5 million plus 25 basis points of the unpaid principal balance of serviced loans and must meet the minimum regulatory capital requirement to be classified as "well capitalized" by both FNMA and FHLMC.

Should the Bank fail to maintain the net worth and liquidity requirements above, the secondary market investor may take remedial action and the Company may lose the right to service the loans, which may result in an impairment of its servicing assets and/or loss of revenue but would not materially affect the Company's consolidated financial statements.

At December 31, 2017 and 2016, the Bank met all of the aforementioned minimum net worth, regulatory capital, and liquidity requirements. Refer to Note 13 for further details of the Company and Bank's regulatory capital requirements at December 31, 2017 and 2016.

9. Deposits

The following is a summary of scheduled maturities of CDs as of December 31, 2017:

	Retail		Brokered		Total
2018	$	239,936	$	—	$	239,936
2019	110,867		—		110,867
2020	62,944		7,000		69,944
2021	32,208		—		32,208
2022	19,816		—		19,816
Thereafter	9,239		—		9,239
Total	$	475,010	$	7,000	$	482,010

CDs issued in amounts that meet or exceed the FDIC insurance limit of $250,000 totaled $137.1 million and $104.5 million at December 31, 2017 and 2016, respectively.

At December 31, 2017 and 2016, the Company, in the normal course of business, had deposits from certain officers, directors, and their associated companies totaling $14.9 million and $14.4 million, respectively.

The Company has pledged assets as collateral covering certain deposits in the amount of $434.6 million and $377.9 million at December 31, 2017 and 2016, respectively.

The amount of overdraft deposits that were reclassified as loans at December 31, 2017 and 2016 was $897,000 and $986,000, respectively.

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10. Borrowings

The following table summarizes the Company's short term and long term borrowings, and subordinated debentures as presented on the consolidated statements of condition for the periods indicated:

	December 31, 2017				Contractual Maturity												December 31, 2016
	Outstanding Balance		Weighted Average Rate		2018		2019		2020		2021		2022		Thereafter		Outstanding Balance		Weighted Average Rate
Short-Term Borrowings:
FHLBB borrowings	$	250,000			$	250,000	$	—	$	—	$	—	$	—	$	—	$	210,000
Customer repurchase agreements	244,646				244,646		—		—		—		—		—		225,605
FHLBB and correspondent bank overnight borrowings	47,150				47,150		—		—		—		—		—		89,450
Wholesale repurchase agreements	—				—		—		—		—		—		—		5,007
Capital lease obligation	71				71		—		—		—		—		—		67
Total short-term borrowings	$	541,867	1.10	%	$	541,867	$	—	$	—	$	—	$	—	$	—	$	530,129	0.74	%
Long-Term Borrowings:
FHLBB borrowings	$	10,000	1.87	%	$	—	$	—	$	10,000	$	—	$	—	$	—	$	10,000	1.87	%
Capital lease obligation	720		4.18	%	—		76		81		90		98		375		791		4.31	%
Total long-term borrowings	$	10,720	2.03	%	$	—	$	76	$	10,081	$	90	$	98	$	375	$	10,791	2.05	%
Subordinated Debentures:
Subordinated debentures(1)	$	14,580	5.50	%	$	—	$	—	$	—	$	—	$	—	$	14,580	$	14,526	5.50	%
CCTA	36,083		5.48	%	—		—		—		—		—		36,083		36,083		5.50	%
UBCT	8,248		6.75	%	—		—		—		—		—		8,248		8,146		6.85	%
Total subordinated debentures	$	58,911	5.66	%	$	—	$	—	$	—	$	—	$	—	$	58,911	$	58,755	5.69	%

(1) Presented net of debt issuance costs of $420,000 and $474,000 at December 31, 2017 and 2016, respectively.

Short-Term Borrowings

Short-term borrowings consist of customer repurchase agreements, FHLBB advances due in less than 90 days, FHLBB and correspondent bank overnight borrowings, and other short-term borrowings due within one year. The Bank had an available line of credit with the FHLBB of $9.9 million at December 31, 2017 and 2016. This line of credit serves as overdraft protection should the Company overdraw its account with the FHLBB. The interest rate for this line of credit is set daily by the FHLBB. The Company had no outstanding balance on the line of credit with the FHLBB at December 31, 2017 or 2016.

Long-Term Borrowings

Long-term borrowings represent securities sold under repurchase agreements with major brokerage firms and notes payable with maturity dates over one year. Both wholesale and retail repurchase agreements are secured by mortgage-backed securities and securities of government sponsored enterprises.

At December 31, 2017, the Company has the following lines of credit available to it, for which it had no outstanding balances:

• The Company has an unsecured $10.0 million line of credit with PNC Bank that has a maturity date of December 20, 2018 for which the interest rate is LIBOR-based and is set daily by PNC Bank.

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• The Company, through the Bank, has an unsecured $50.0 million line of credit with PNC Bank for which the interest rate is set daily by PNC Bank.

• The Company, through the Bank, has a secured line of credit of $99.8 million through the FRB's Discount Window for which the interest rate is set by the FRB daily. At December 31, 2017, the Bank pledged commercial loans with a carrying value of $144.4 million and investment securities of $31,000.

FHLBB Borrowings

At December 31, 2017, the terms of the Company's outstanding FHLBB borrowings were as follows:

Balance Sheet Classification	Outstanding Balance		Maturity Date	Interest Rate Range	Next Call Date	Call Amount
Short-Term Borrowings	$	200,000	January 2018	1.45% - 1.63%	N/A	$	—
Short-Term Borrowings	$	50,000	February 2018	1.54%	N/A	$	—
Long-Term Borrowings	$	10,000	April 2020	1.87%	N/A	$	—

FHLBB borrowings are collateralized by a blanket lien on qualified collateral consisting primarily of loans with first mortgages secured by one- to four-family properties, certain commercial real estate loans, certain pledged investment securities and other qualified assets. The carrying value of residential real estate and commercial loans pledged as collateral was $1.1 billion at December 31, 2017 and 2016. The carrying value of securities pledged as collateral at the FHLBB was $215,000 and $400,000 at December 31, 2017 and 2016, respectively.

Subordinated Debentures

The Company issued $15.0 million of subordinated debt on October 8, 2015, which qualifies as Tier II regulatory capital. The interest rate on the subordinated debt is 5.50% per annum, fixed for the ten-year term and payable semi-annually on April 15 and October 15 each year. The Company can redeem the subordinated debt at par starting on October 15, 2020 plus accrued and unpaid interest, or earlier if (i) they no longer qualify as Tier II capital for regulatory capital purposes; (ii) a change in law that prevents the Company from deducting interest payable for U.S. federal income tax purposes, or (iii) the Company is required to register as an investment company pursuant to the Investment Company Act of 1940. The subordinated debt is schedule to mature on October 15, 2025.

The Company incurred issuance costs of $536,000 associated with this debt issuance. The Company capitalized these costs and they have been presented within subordinated debentures on the consolidated statements of condition. The Company will amortize the issuance costs over the ten-year term of the subordinated debt. The amortization costs incurred for the year ended December 31, 2017 and 2016 associated with the debt issuance was $54,000, and was recognized as an increase to interest expense within the consolidated statements of income.

In April 2006, the Company formed CCTA, which issued and sold trust preferred securities to the public. The Company received $36.1 million from the issuance of the trust preferred securities in return for junior subordinated debentures issued by the Company to CCTA. The Company owns all of the $1.1 million of outstanding common securities of CCTA. The interest rate of the trust preferred securities was fixed at 6.71% through June 2011 and now floats at the 3 month LIBOR plus 140 basis points. The proceeds from the offering were used to repurchase Company common stock under the tender offer completed in May 2006. The trust preferred securities, which pay interest quarterly at the same rate as the junior subordinated debentures held by CCTA, are mandatorily redeemable on June 30, 2036, or may be redeemed by CCTA at par any time on or after June 30, 2011.

In connection with the acquisition of Union Bankshares Company in 2008, the Company assumed $8.0 million of trust preferred securities, held through a Delaware trust affiliate, UBCT. In 2006, Union Bankshares Company issued an aggregate principal amount of $8.2 million of 30-year junior subordinated deferrable interest debt securities to UBCT. The Company owns all of the $248,000 of outstanding common securities of UBCT. The debt securities obligate the Company to pay interest on their principal sum quarterly in arrears on January 7, April 7, July 7, and October 7 of each year. The interest rate of the trust preferred securities until April 7, 2011 was a blended rate equal to the sum of (1) the product of 50% times the average three-month LIBOR plus 1.42%, plus (2) the product of 50% times 6.4725%. The rate is now the average three-month LIBOR plus 1.42%. The debt securities mature on April 7, 2036, but may be redeemed by the Company, in whole or in part, beginning on

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April 7, 2011, on any interest payment date. The debt securities may also be redeemed by the Company in whole or in part, within 90 days of the occurrence of certain special redemption events as defined in the Indenture.

CCTA and UBCT are Delaware statutory trusts created for the sole purpose of issuing trust preferred securities and investing the proceeds in junior subordinated debentures of the Company. The junior subordinated debentures are the sole assets of the trusts. The Company is the owner of all of the common securities of CCTA and UBCT and fully and unconditionally guarantees each trust’s securities obligations. In accordance with GAAP, CCTA and UBCT are treated as unconsolidated subsidiaries. The common stock investment in the statutory trusts is included in other assets on the consolidated statements of condition. At December 31, 2017, $43.0 million of the trust preferred securities were included in the Company’s total Tier I capital and amounted to 12.0% of Tier I capital of the Company.

The Company has a notional amount of $43.0 million in interest rate swap agreements on its junior subordinated debentures. Further discussion on the terms and accounting for the interest rate swap agreements is included within Note 18 of the consolidated financial statements.

Interest expense on the subordinated debentures, including the effective portion of the associated interest rate swaps on these debt instruments reclassified from OCI into earnings, totaled $3.4 million, $3.4 million and $2.7 million for the year ended December 31, 2017, 2016 and 2015, respectively. Refer to Note 18 of the consolidated financial statements for information pertaining to the reclassification of OCI into earnings on the interest rate swaps.

11. Repurchase Agreements

The Company can raise additional liquidity by entering into repurchase agreements at its discretion. In a security repurchase agreement transaction, the Company will generally sell a security, agreeing to repurchase either the same or substantially identical security on a specified later date, at a greater price than the original sales price. The difference between the sale price and purchase price is the cost of the proceeds, which is recorded as interest expense on the consolidated statement of income. The securities underlying the agreements are delivered to counterparties as security for the repurchase obligations. Since the securities are treated as collateral and the agreement does not qualify for a full transfer of effective control, the transactions does not meet the criteria to be classified as a sale, and is therefore considered a secured borrowing transaction for accounting purposes. Payments on such borrowings are interest only until the scheduled repurchase date. In a repurchase agreement the Company is subject to the risk that the purchaser may default at maturity and not return the securities underlying the agreements. In order to minimize this potential risk, the Company either deals with established firms when entering into these transactions or with customers whose agreements stipulate that the securities underlying the agreement are not delivered to the customer and instead are held in segregated safekeeping accounts by the Company's safekeeping agents.

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The tables below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings and types of collateral at December 31, 2017 and 2016:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
December 31, 2017
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	630	$	—	$	—	$	—	$	630
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	98,460		—		—		—		98,460
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	145,556		—		—		—		145,556
Total Customer Repurchase Agreements	244,646		—		—		—		244,646
Total Repurchase Agreements(1)	$	244,646	$	—	$	—	$	—	$	244,646
December 31, 2016
Customer Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	117,784	$	—	$	—	$	—	$	117,784
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	107,821		—		—		—		107,821
Total Customer Repurchase Agreements	225,605		—		—		—		225,605
Wholesale Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	—		—		3,715		—		3,715
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	—		—		1,292		—		1,292
Total Wholesale Repurchase Agreements	—		—		5,007		—		5,007
Total Repurchase Agreements(1)	$	225,605	$	—	$	5,007	$	—	$	230,612

(1) Presented within short-term borrowings on the consolidated statements of condition.

Certain customers held CDs totaling $920,000 and $917,000 with the Bank at December 31, 2017 and 2016, respectively, that were collateralized by CMO and MBS securities that were overnight repurchase agreements.

Certain counterparties monitor collateral, and may request additional collateral to be posted from time to time.

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12. Income Taxes

The current and deferred components of income tax expense on the consolidated statements of income were as follows:

	For The Year Ended December 31,
	2017			2016			2015
Current:
Federal	$	14,529		$	17,854		$	7,956
State	1,289			930			71
	15,818			18,784			8,027
Deferred:
Change in federal corporate income tax rate(1)	14,263			—			—
Federal	4,117			(1,258		)	1,356
State	(320		)	(54		)	524
	18,060			(1,312		)	1,880
Income tax expense	$	33,878		$	17,472		$	9,907

(1) On December 22, 2017, the Tax Act was enacted, reducing the U.S. federal corporate income tax rate from 35.0% to 21.0%. ASC Topic 740, Accounting for Income Taxes (“ASC 740”), requires companies to recognize the effect of tax law changes in the period of enactment even though the effective date for most provisions of the Tax Act was January 1, 2018. As of December 31, 2017, the Company has completed its accounting for the tax effects of the Tax Act, which resulted in a reduction to net deferred tax assets and a corresponding charge to income tax expense of $14.3 million.

The income tax expense differs from the amount computed by applying the statutory federal income tax rate as a result of the following:

	For The Year Ended December 31,
	2017			2016			2015
Computed tax expense	$	21,824		$	20,139		$	10,801
Increase (reduction) in income taxes resulting from:
Change in federal corporate income tax rate	14,263			—			—
Tax exempt income	(1,291		)	(1,312		)	(1,092		)
Income from life insurance	(829		)	(908		)	(588		)
State taxes, net of federal benefit	630			565			373
Share-based awards(1)	(390		)	(701		)	—
Low income housing credits	(366		)	(376		)	(359		)
Non-deductible acquisition-related costs	—			—			467
Other	37			65			305
Income tax expense	$	33,878		$	17,472		$	9,907
Income before income taxes	$	62,354		$	57,539		$	30,859
Effective tax rate	54.3		%	30.4		%	32.1		%

(1) The Company adopted the provisions of ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, in calendar year 2016. Prior to adoption, it accounted for its windfall tax benefits or shortfalls generated upon exercise of a non-qualified stock option or a disqualifying incentive stock option, or upon vesting of its restricted shares through shareholders' equity (or as income tax expense to the extent the Company did not have a windfall tax benefit surplus). Upon adoption, the Company now accounts for its windfall tax benefits and shortfalls generated within income tax expense on the consolidated statements of income as a discrete period item in the quarter generated.

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Temporary differences between the financial statements carrying amounts and the tax bases of assets and liabilities gave rise to the following deferred tax assets and liabilities:

	December 31,
	2017(1)					2016(2)
	Asset		Liability			Asset		Liability
Net operating loss and tax credit carryforward	$	12,078	$	—		$	20,977	$	—
Allowance for loan losses	5,201		—			8,094		—
Pension and other benefits	3,363		—			5,141		—
Net unrealized losses on AFS securities	2,821		—			3,227		—
Net unrealized losses on derivative instruments	1,623		—			3,066		—
Deferred compensation and benefits	1,199		—			1,791		—
Net unrealized losses on postretirement plans	1,092		—			1,147		—
Purchase accounting and deposit premium	461		—			1,430		—
Depreciation	—		(2,857		)	—		(4,520		)
Deferred loan origination fees	—		(1,510		)	—		(2,046		)
Other	—		(695		)	956		—
	27,838		(5,062		)	45,829		(6,566		)
Valuation allowance on deferred tax assets			—					—
Net deferred tax assets			$	22,776				$	39,263

(1) At December 31, 2017, the Company's deferred tax assets and liabilities were calculated using a 21.5% deferred tax rate.

(2) At December 31, 2016, the Company's deferred tax assets and liabilities were calculated using a 35.0% deferred tax rate.

In connection with the acquisition of SBM on October 16, 2016, the Company acquired certain net operating losses and tax credit carryforwards as of the acquisition date, including federal net operating losses of $71.2 million and State of Maine net operating losses of $213,000. The Company determined it would not be able to utilize $6.8 million of the acquired federal net operating losses and wrote-off this amount within purchase accounting. Due to Internal Revenue Code of 1986, as amended, Section 382(g) limitations, the Company's use of the federal net operating losses acquired is limited to $3.9 million annually (and $803,000 for fiscal year 2015), which was determined using the applicable federal rate and the fair value of consideration paid for the acquisition at the acquisition date. The acquired federal net operating losses will expire between 2030 and 2034. The Company has assessed the need for a valuation allowance on the acquired federal net operating losses and determined that there was a high likelihood that it will be able to utilize all of the acquired allowable federal net operating losses prior to expiration as the Company has a history of generating taxable income well in excess of the limitation. As such, no valuation allowance has been established on its acquired federal net operating losses or tax credit carryforwards as of December 31, 2017 or 2016.

As of December 31, 2017, the Company's federal income tax returns for the year ended December 31, 2016 and 2015 were open to audit by federal authorities and state income tax returns for the year ended December 31, 2016, 2015 and 2014 were open to audit by state authorities. During the year ended December 31, 2017, the IRS completed its examination of the Company's 2013 and 2014 federal income tax returns, which resulted in no material changes to the Company's consolidated financial statements.

13. Shareholders’ Equity

Regulatory Capital Requirements

The Company and Bank are subject to various regulatory capital requirements administered by the FRB and the OCC. Failure to meet minimum capital requirements can result in mandatory and possible additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements.

The Company and the Bank are required to maintain certain levels of capital based on risk-adjusted assets. These capital requirements represent quantitative measures of their assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The Company and the Bank's capital classification is also subject to qualitative judgments by our regulators about components, risk weightings and other factors. The quantitative measures established to ensure capital adequacy require us to maintain minimum amounts and ratios of total, Tier I capital, and common equity Tier I to risk-weighted assets, and of Tier I capital to average assets, or leverage ratio. These guidelines apply to the Company on a consolidated basis.

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Under the current guidelines, banking organizations must have a minimum total risk-based capital ratio of 8.0%, a minimum Tier I risk-based capital ratio of 6.0%, a minimum common equity Tier I risk-based capital ratio of 4.5%, and a minimum leverage ratio of 4.0% in order to be "adequately capitalized." In addition to these requirements, banking organizations must maintain a 2.5% capital conservation buffer consisting of common Tier I equity, subject to a transition schedule with a full phase-in by 2019. Effective January 1, 2017, the Company and the Bank were required to establish a capital conservation buffer of 1.25%, increasing the minimum required total risk-based capital, Tier I risk-based and common equity Tier I capital to risk-weighted assets they must maintain to avoid limits on capital distributions and certain bonus payments to executive officers and similar employees.

The Company and Bank's risk-based capital ratios exceeded regulatory guidelines at December 31, 2017 and 2016, and, specifically, the Bank was "well capitalized" under prompt correct action provisions for each period. There were no conditions or events that occurred subsequent to December 31, 2017 that would change the Company or Bank's regulatory capital categorization. The following table presents the Company and Bank's regulatory capital ratios at the periods indicated:

	December 31, 2017				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions		December 31, 2016				Minimum Regulatory Capital Required For Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions
	Amount		Ratio						Amount		Ratio
Camden National Corporation:
Total risk-based capital ratio	$	396,451	14.14	%	9.25	%	N/A		$	368,856	14.04	%	8.63	%	N/A
Tier I risk-based capital ratio	357,261		12.74	%	7.25	%	N/A		330,729		12.59	%	6.63	%	N/A
Common equity Tier I risk-based capital ratio	316,677		11.30	%	5.75	%	N/A		296,120		11.27	%	5.13	%	N/A
Tier I leverage capital ratio	357,261		9.07	%	4.00	%	N/A		330,729		8.83	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	369,540	13.18	%	9.25	%	10.00	%	$	340,908	12.92	%	8.63	%	10.00	%
Tier I risk-based capital ratio	345,350		12.32	%	7.25	%	8.00	%	317,782		12.05	%	6.63	%	8.00	%
Common equity Tier I risk-based capital ratio	345,350		12.32	%	5.75	%	6.50	%	317,782		12.05	%	5.13	%	6.50	%
Tier I leverage capital ratio	345,350		8.80	%	4.00	%	5.00	%	317,782		8.54	%	4.00	%	5.00	%

On October 8, 2015, the Company issued $15.0 million of 10 year subordinated debentures bearing interest at an annual rate of 5.50%. In addition, $43.0 million of junior subordinated debentures were issued in connection with the issuance of trust preferred securities in 2006 and 2008. Although the subordinated debentures and the junior subordinated debentures are recorded as liabilities on the Company's consolidated statements of condition, the Company is permitted, in accordance with regulatory guidelines, to include, subject to certain limits, each within its calculation of risk-based capital. At December 31, 2017 and 2016, $15.0 million of subordinated debentures were included as Tier II capital and were included in the calculation of the Company's total risk-based capital, and, at December 31, 2017 and December 31, 2016, $43.0 million of the junior subordinated debentures were included in Tier I and total risk-based capital for the Company.

The Company and Bank's regulatory capital and risk-weighted assets fluctuate due to normal business, including profits and losses generated by the Company and Bank as well as changes to their asset mix. Of particular significance are changes within the Company and Bank's loan portfolio mix due to the difference in regulatory risk-weighting differences between retail and commercial loans. Furthermore, the Company and Bank's regulatory capital and risk-weighted assets are subject to change due to changes in GAAP and regulatory capital standards. The Company and Bank proactively monitor their regulatory capital and risk-weighted assets, and the impact of changes to their asset mix, and impact of proposed and pending changes as a result of new and/or amended GAAP standards and regulatory changes.

Dividends

The primary source of funds available to the Company for the payment of dividends to its shareholders is dividends paid to the Company by its subsidiary, the Bank. The Bank is subject to certain requirements imposed by federal banking laws and regulations. These requirements, among other things, establish minimum levels of capital and restrict the amount of dividends that a bank subsidiary may distribute. Under regulations prescribed by the OCC, without prior OCC approval, a bank subsidiary

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may not declare dividends in any year in excess of the bank’s (i) net income for the current year, (ii) plus its retained net income for the prior two years.

For the year ended December 31, 2017, 2016, and 2015, the Bank declared dividends for payment to the Company in the amount of $16.8 million, $16.0 million, and $39.2 million which included a $30.0 million special dividend that was paid in connection with the acquisition of SBM, respectively. For the year ended December 31, 2017, 2016 and 2015, the Company declared $14.6 million, $12.9 million and $10.6 million, respectively, in dividends payable to its shareholders.

Common Stock Split

On August 30, 2016, the Company's Board of Directors declared a three-for-two stock split, effected in the form of a stock dividend, on the Company's common stock. Each shareholder of record on September 15, 2016, received one additional share of common stock for every two shares of common stock owned. The stock was issued September 30, 2016.

The Company paid shareholders cash in lieu of fractional shares of common stock in connection with the split, at a price of $31.75 per share, the closing price of the Company’s common stock on September 14, 2016. The total cash paid for fractional shares was $5,000, and was accounted for as a reduction of capital stock.

Common Stock Repurchase

On September 24, 2013, the Company's Board of Directors authorized the 2013 Repurchase Plan. The 2013 Repurchase Plan allows for the repurchase of up to 375,000 shares of the Company’s outstanding common stock. This program is expected to continue until the authorized number of shares is repurchased, or the Company’s Board of Directors terminates the program. As of December 31, 2017, the Company had repurchased 374,250 shares at a weighted-average price of $26.55, or 99.8% of the program’s total allotment. The Company did not repurchase any of its outstanding common stock for the year ended December 31, 2017.

14. EPS

The following is an analysis of basic and diluted EPS, reflecting the application of the two-class method, as described below:

	For The Year Ended December 31,
	2017			2016			2015
Net income	$	28,476		$	40,067		$	20,952
Dividends and undistributed earnings allocated to participating securities(1)	(118		)	(189		)	(59		)
Net income available to common shareholders	$	28,358		$	39,878		$	20,893
Weighted-average common shares outstanding for basic EPS	15,509,665			15,422,160			12,031,294
Dilutive effect of stock-based awards(2)	78,682			82,079			43,285
Weighted-average common and potential common shares for diluted EPS	15,588,347			15,504,239			12,074,579
Earnings per common share:
Basic EPS	$	1.83		$	2.59		$	1.73
Diluted EPS	$	1.82		$	2.57		$	1.73
Awards excluded from the calculation of diluted EPS(3):
Stock options	—			—			19,875

(1) Represents dividends paid and undistributed earnings allocated to nonvested stock-based awards that contain non-forfeitable rights to dividends.

(2) Represents the effect of the assumed exercise of stock options, and vesting of restricted shares and restricted stock units, and issuance of LTIP awards that have met the performance criteria, utilizing the treasury stock method.

(3) Represents stock-based awards not included in the computation of potential common shares for purposes of calculating diluted EPS as the exercise prices were greater than the average market price of the Company's common stock, and, therefore, are considered anti-dilutive.

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Nonvested stock-based payment awards that contain non-forfeitable rights to dividends are participating securities and are included in the computation of EPS pursuant to the two-class method. The two-class method is an earnings allocation formula that determines EPS for each class of common stock and participating security according to dividends declared (or accumulated) and participation rights in undistributed earnings. Certain of the Company’s nonvested stock-based awards qualify as participating securities.

Net income is allocated between the common stock and participating securities pursuant to the two-class method. Basic EPS is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period, excluding participating nonvested stock-based awards.

Diluted EPS is computed in a similar manner, except that the denominator includes the number of additional common shares that would have been outstanding if potentially dilutive common shares were issued using the treasury stock method.

15. Stock-Based Compensation Plans

Stock-Based Compensation

On April 29, 2003 and May 1, 2012, the shareholders of the Company approved the 2003 Plan and 2012 Plan, respectively. The maximum number of shares of stock reserved and available for issuance under each the 2003 Plan and 2012 Plan is 1.2 million shares. As shares or units are vested or options are exercised, new shares are issued out of either the 2003 or 2012 Plan. Awards may be granted in the form of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, performance shares and dividend equivalent rights, or any combination of the preceding, and the exercise price shall not be less than 100% of the fair market value on the date of grant in the case of incentive stock options, or 85% of the fair market value on the date of grant in the case of non-qualified stock options. No stock option is exercisable more than ten years after the date the stock option is granted. The exercise price of all options granted equaled the market price of the Company's stock on the date of grant, except for the non-qualified stock options issued in conjunction with the acquisition of SBM. Refer to Note 2 for additional details.

The amount of cash used to settle stock-based compensation transactions for the year ended December 31, 2017, 2016 and 2015 was $902,000, $373,000 and $157,000, respectively.

Stock Option Awards

Stock options granted under the 2003 Plan and the 2012 Plan have been both incentive stock options and non-qualified stock options. All incentive stock options and non-qualified stock options granted vest pro rata over a five year period and have a contractual life of ten years.

On the date of each grant, the fair value of each award is derived using the Black-Scholes option pricing model based on assumptions made by the Company as follows:

• Dividend yield is based on the dividend rate of the Company’s stock at the date of grant.

• Risk-free interest rate is based on the U.S. Treasury bond rate with a term equaling the expected life of the granted options.

• Expected volatility is based on the historical volatility of the Company’s stock price calculated over the expected life of the option.

• Expected life represents the period of time that granted options are expected to be outstanding based on historical trends.

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For the year ended December 31, 2017, 2016 and 2015, the Company issued stock options with a grant-date fair value of $0, $16,000 and $22,000, respectively. The following table presents the option pricing assumptions and the estimated fair value of the options using these assumptions for grants made for the year ended:

	December 31,
	2017			2016			2015
Weighted-average dividend yield	—		%	3.12		%	3.01		%
Weighted-average risk-free interest rate	—		%	1.52		%	1.50		%
Weighted-average expected volatility	—		%	29.64		%	31.85		%
Weighted-average expected life (in years)	0.0			5.3			5.3
Weighted-average fair value of options granted	$	—		$	5.17		$	5.87

Compensation expense is recognized on a straight-line basis over the option vesting period. For the year ended December 31, 2017, 2016 and 2015, the compensation expense recognized for stock options was $20,000, $30,000 and $51,000, respectively. The Company does not receive any tax benefit on its issuance of incentive stock options, unless upon exercise a disqualifying disposition is made. The total tax benefit to the Company upon exercise of incentive stock options for the year ended December 31, 2017, 2016 and 2015 was $21,000, $36,000, and $59,000, respectively. Additionally, for the year ended December 31, 2017, 2016 and 2015, the Company received a tax benefit upon the exercise of non-qualified stock options that were issued as consideration in the acquisition of SBM, of $21,000, $378,000 and $0, respectively.

Unrecognized compensation expense for nonvested stock options totaled $41,000 at December 31, 2017 and is expected to be recognized over the remaining weighted-average vesting period of 2.3 years. The total intrinsic value of options exercised for the year ended December 31, 2017, 2016 and 2015 was $268,000, $2.5 million, and $573,000, respectively.

Stock option activity for the year ended December 31, 2017 was as follows:

	Number of Options		Weighted-Average Exercise Price per Option		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Options outstanding at January 1, 2017	58,743		$	20.38
Granted	—		—
Exercised	(11,841	)	17.50
Forfeited	(2,400	)	26.23
Expired	(1,425	)	23.11
Options outstanding at December 31, 2017	43,077		$	21.00	3.45	$	910
Options exercisable at December 31, 2017	39,627		$	20.58	3.11	$	854

A summary of the status of the Company’s nonvested stock options as of December 31, 2017 and changes during the year then ended was as follows:

	Options		Weighted-Average Grant Date Fair Value per Option
Nonvested at January 1, 2017	9,450		$	6.59
Granted	—		—
Vested	(3,600	)	7.80
Forfeited	(2,400	)	5.48
Nonvested at December 31, 2017	3,450		$	6.11

For the year ended December 31, 2017, 2016 and 2015 the Company received cash from the exercise of stock options of $98,000, $1.3 million and $736,000 respectively.

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Restricted Stock Units

For the year ended December 31, 2017, 2016 and 2015, the Company issued restricted stock units with a grant-date fair value of $808,000, $0 and $0, respectively, to certain employees. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted. Restricted stock units vest pro-rata over the requisite service period, which is typically three to five years, and may contain certain performance-based conditions. Restricted stock units issued do not participate in dividends and recipients are not entitled to vote these restricted units until they vest.

Compensation expense and the related income tax benefit recognized in connection with the restricted stock units was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	124	$	—	$	—
Income tax benefit	27		—		—
Fair value of grants vested	—		—		—

Restricted stock unit activity for the year ended December 31, 2017 was as follows:

	Number of Units		Weighted-Average Grant Date Fair Value per Unit		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	—		$	—
Granted	18,762		43.05
Vested	—		—
Forfeited	(1,285	)	43.11
Nonvested at December 31, 2017	17,477		$	43.04	4.6	$	736	$	620

Restricted Stock Awards

For the year ended December 31, 2017, 2016 and 2015, the Company issued restricted stock awards with a grant-date fair value of $686,000, $925,000 and $1.0 million, respectively, to certain directors and employees. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted. Restricted stock awards vest pro-rata over the requisite service period, which is typically three to five years, with the exception of awards issued to Company directors that typically vest immediately, and may contain certain performance-based conditions. Nonvested restricted stock awards participate in dividends and recipients are entitled to vote these restricted shares during the vesting period.

Compensation expense and the related income tax benefit recognized in connection with the restricted stock awards was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	762	$	703	$	327
Income tax benefit	164		246		114
Fair value of grants vested	702		603		341

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Restricted stock award activity for the year ended December 31, 2017 is as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	47,518		$	28.16
Granted	16,185		42.39
Vested	(22,553	)	31.14
Forfeited	(4,825	)	28.93
Nonvested at December 31, 2017	36,325		$	32.56	2.2	$	1,530	$	787

MSPP

For the year ended December 31, 2017, 2016 and 2015, the Company issued MSPP awards with a grant-date fair value of $111,000, $128,000 and $108,000, respectively, to certain employees. The Company offers the MSPP to provide an opportunity for certain employees to receive restricted shares of the Company’s common stock in lieu of their annual incentive bonus. Restricted shares issued under the MSPP are granted at a discount of one-third of the fair market value of the stock on the date of grant and cliff vests two years after the grant date. Should an employee forfeit his or her nonvested MSPP awards, the Company will return the lesser of the strike price paid by the employee or the fair value of the nonvested awards as of the date forfeited. Restricted stock issued under the MSPP to certain employees participate in dividends and are entitled to vote these restricted shares during the vesting period.

Compensation expense and the related income tax benefit recognized in connection with the MSPP awards was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	97	$	102	$	66
Income tax benefit	21		36		23
Fair value of grants vested	91		57		92

MSPP award activity for the year ended December 31, 2017 was as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	26,699		$	7.85
Granted	8,088		13.73
Vested	(11,777	)	7.73
Forfeited	(2,791	)	11.49
Nonvested at December 31, 2017	20,219		$	9.77	1.0	$	431	$	54

For the year ended December 31, 2017, 2016 and 2015 the Company received cash from the issuance of restricted shares under the MSPP of $180,000, $241,000 and $220,000 respectively. At December 31, 2017 and 2016, $421,000 and $454,000 of the MSPP cash received was included in accrued interest and other liabilities in the consolidated statements of condition.

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LTIP

The LTIP is intended to attract and retain executives who will contribute to the Company’s future success. The long-term performance period is a period of three consecutive years beginning on January 1 of the first year and ending on December 31 of the third year. Awards are based upon either: (i) the attainment of certain performance targets on specific performance measures selected by the Compensation Committee and approved by the Board of Directors; or (ii) 50% weighted on the attainment of certain performance targets on specific performance measures selected by the Compensation Committee and approved by the Board of Directors and 50% weighted on meeting the requisite service period. The performance-based share units granted will vest only if specific performance measures, as defined under the LTIP, are achieved. Failure to achieve the specific performance measures will result in all or a portion of the shares being forfeited. The service-based share units granted vest annually pro-rata over the three year period. For the year ended December 31, 2017, 2016 and 2015, the Company issued restricted stock awards as part of the LTIP to certain executives with a grant-date fair value of $697,000, $502,000 and $0, respectively. For the year ended December 31, 2017, 2016 and 2015, the Company issued performance-based stock awards with a grant-date fair value of $697,000, $502,000 and $963,000, respectively. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted.

Compensation expense recognized for the LTIP's restricted stock awards was presented within "—Restricted Stock Awards^" above. Compensation expense for the LTIP's performance-based awards was presented in the following table:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense(1)	$	370	$	1,080	$	330
Related income tax benefit	80		378		116
Fair value of grants vested	843		725		412

LTIP restricted stock award activity for the year ended December 31, 207 was presented within "—Restricted Stock Awards^" above. LTIP performance-based award activity for the year ended December 31, 2017 was as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	52,737		$	27.01
Granted	16,830		41.39
Vested	(32,323	)	26.09
Forfeited	(5,621	)	26.97
Nonvested at December 31, 2017	31,623		$	35.60	1.7	$	1,332	$	291

DCRP

The DCRP is an unfunded deferred compensation plan for the benefit of certain Company executives. The Company’s Compensation Committee determines eligibility in the DCRP and annually, participants will receive a credit to an account administered by the Company of 10% of each participant’s annual base salary and bonus for the prior performance period. Annual credits to a participant’s account will be denominated in deferred stock awards (the right to receive a share of common stock of the Company upon the satisfaction of certain restrictions) based on the fair market value of the common stock of the Company on the date of grant. Vesting occurs ratably from the date of participation until the participant reaches the age of 65, at which time the participant is 100% vested. Subsequent to December 31, 2017, the DCRP was amended providing the ability to tailor vesting terms for new participants. Upon retirement or termination of employment, the participant will receive shares of common stock equal to the Deferred Stock Awards in the account multiplied by the vested percentage, reduced by the amount to be withheld for income taxes; unvested awards will be forfeited. For the year ended December 31, 2017, 2016 and 2015, the Company issued DCRP awards with a grant-date fair value of $118,000, $111,000 and $93,000, respectively. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted.

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Compensation expense recognized in connection with the DCRP was presented in the following table:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	97	$	81	$	62
Related income tax benefit	21		28		22
Fair value of grants vested	90		75		59

DCRP award activity for the year ended December 31, 2017 was as follows:

	Number of Deferred Stock Awards		Weighted-Average Grant Date Fair Value per Award		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	14,244		$	23.65
Granted	2,772		42.66
Vested	(2,776	)	32.50
Forfeited	(4,192	)	25.88
Nonvested at December 31, 2017	10,048		$	25.52	9.2	$	423	$	229

16. Employee Benefit Plans

401(k)/Profit Sharing Plan

The Company has a 401(k)/profit sharing plan and the majority of employees participate in the plan. Employees may contribute pre-tax contributions to the 401(k)/profit sharing plan up to the maximum amount allowed by federal tax laws. The Company makes matching contributions of up to 4% of an employee’s eligible compensation. The Company, at its discretion, may make additional matching and profit sharing contributions. For the year ended December 31, 2017, 2016 and 2015, these additional contributions totaled 3% of employee eligible compensation. For the year ended December 31, 2017, 2016 and 2015, expenses under the 401(k)/profit sharing plan were $2.3 million, $2.2 million, and $1.5 million, respectively. The increase in expense for the year ended December 31, 2017 compared to the year ended December 31, 2016 was due to an increase in employee eligible compensation, while the expense increase for the year ended December 31, 2016 compared to the year ended December 31, 2015 was driven by the SBM acquisition in the fourth quarter of 2015.

SERP and Other Postretirement Benefit Plan

The Company sponsors unfunded, non-qualified SERPs for certain officers. These agreements are designed to make up the shortfall (when compared to a non-highly compensated employee) in replacing income at retirement due to IRS compensation and benefit limits under the 401(k) plan and Social Security. With a SERP in place, participants should be able to replace 65 –75% of their final average compensation. For those eligible for benefits, the SERP provides for a minimum 15-year guaranteed benefit for all vested participants. In addition, the Company provides medical and life insurance to certain eligible retired employees under the other postretirement benefit plan.

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The following table summarizes changes in the benefit obligation and plan assets for (i) SERP and (ii) the other postretirement benefit plan as of December 31, 2017 and 2016:

	SERP						Other Postretirement Benefits
	2017			2016			2017			2016
Benefit obligations:
Beginning of year	$	11,523		$	11,052		$	3,635		$	3,447
Service cost	335			308			53			59
Interest cost	452			432			144			151
Actuarial loss	1,955			219			110			143
Benefits paid	(475		)	(488		)	(151		)	(165		)
End of year	13,790			11,523			3,791			3,635
Fair value of plan assets:
Beginning of year	—			—			—			—
Employer contributions	475			488			151			165
Benefits paid	(475		)	(488		)	(151		)	(165		)
End of year	—			—			—			—
Unfunded status at end of year(1)	$	13,790		$	11,523		$	3,791		$	3,635
Amounts recognized in AOCI, net of tax:
Net actuarial loss	$	3,504		$	1,791		$	654		$	495
Prior service credit	—			—			(170		)	(156		)
Total	$	3,504		$	1,791		$	484		$	339

(1) Presented within other liabilities on the consolidated statements of condition.

The accumulated benefit obligation for the SERP at December 31, 2017 and 2016 was $12.3 million and $10.7 million, respectively.

For the year ending December 31, 2018, the estimated actuarial loss on the SERP that will be amortized from AOCI into net periodic benefit cost is $561,000. All prior service costs have been fully amortized.

For the year ending December 31, 2018, the estimated actuarial loss and prior service credit on other postretirement benefits that will be amortized from AOCI into net periodic benefit cost is $53,000 and $24,000, respectively.

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The components of net periodic benefit cost and other amounts recognized in OCI, before taxes, were as follows:

	SERP									Other Postretirement Benefits
	2017			2016			2015			2017			2016			2015
Net periodic benefit cost:
Service cost	$	335		$	308		$	307		$	53		$	59		$	62
Interest cost	452			432			424			144			151			117
Recognized net actuarial loss	246			220			218			41			30			24
Amortization of prior service cost (credit)	—			7			19			(24		)	(22		)	(22		)
Net periodic benefit cost	1,033			967			968			214			218			181
Changes in funded status recognized in OCI, before taxes:
Net actuarial (gain) loss arising during period	1,955			219			(32		)	110			143			92
Reclassifications to net period benefit cost:
Amortization of net unrecognized actuarial loss	(246		)	(220		)	(218		)	(41		)	(30		)	(24		)
Amortization of prior service (cost) credit	—			(7		)	(19		)	24			22			22
Total recognized in OCI, before taxes	1,709			(8		)	(269		)	93			135			90
Total recognized in net periodic benefit cost and OCI, before taxes	$	2,742		$	959		$	699		$	307		$	353		$	271

The following assumptions were used in determining benefit obligations and net period benefit costs:

	SERP						Other Postretirement Benefits
	2017		2016		2015		2017		2016		2015
Weighted-average assumptions as of end of year:
Discount rate for benefit obligation	3.60	%	4.00	%	4.00	%	3.55	%	4.00	%	4.50	%
Discount rate for net periodic benefit cost	4.00	%	4.00	%	4.00	%	4.00	%	4.50	%	4.00	%
Rate of compensation increase for benefit obligation	5.00	%	4.00	%	4.00	%	—		—		—
Rate of compensation increase for net periodic benefit cost	5.00	%	4.00	%	4.00	%	—		—		—
Health care cost trend rate assumed for future years	—		—		—		6.50	%	7.00	%	7.00	%

A 1.0% increase or decrease in the assumed health care cost trend rate would not materially increase or decrease the Company's accumulated postretirement benefit obligation and the related service and interest cost as of December 31, 2017. The postretirement plan has a built-in cap on annual benefits to participants and, thus, the accumulated postretirement benefit obligation and the assumed health care cost trend are relatively stable each period.

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For the year ending December 31, 2018, the expected contribution is $473,000 for the SERP and $156,000 for the other postretirement benefits plan. The expected benefit payments for the next ten years are presented in the following table:

	SERP	Other Postretirement Benefits
2018	473	156
2019	477	168
2020	486	173
2021	536	175
2022	566	187
2023-2027	2,246	1,061

17. Other Non-Interest Income and Expenses

Detail of other income included in the consolidated statements of income is as follows:

	For The Year Ended  December 31,
Other income	2017		2016		2015
Customer loan swap fee income(1)	$	1,574	$	2,104	$	1,514
Other income	1,545		4,830		2,363
Total	$	3,119	$	6,934	$	3,877

(1) Fee income recognized upon completion of customer loan swaps. Refer to Note 18 for further discussion.

Detail of other expenses included in the consolidated statements of income is as follows:

	For The Year Ended  December 31,
Other expenses	2017		2016		2015
Donations and marketing	$	1,852	$	1,660	$	1,841
Employee-related costs(1)	1,710		1,616		1,437
Postage, freight, and courier	1,655		1,754		1,430
Other expenses	5,731		5,657		4,502
Total	$	10,948	$	10,687	$	9,210

(1) Employee-related costs include hiring, training, education, meeting and business travel costs.

18. Commitments, Contingencies and Derivatives

Legal Contingencies

In the normal course of business, the Company and its subsidiaries are subject to pending and threatened legal actions. Although the Company is not able to predict the outcome of such actions, after reviewing pending and threatened actions with counsel, management believes that based on the information currently available the outcome of such actions, individually or in the aggregate, will not have a material adverse effect on the Company’s consolidated financial statements.

Reserves are established for legal claims only when losses associated with the claims are judged to be probable, and the loss can be reasonably estimated. In many lawsuits and arbitrations, it is not possible to determine whether a liability has been incurred or to estimate the ultimate or minimum amount of that liability until the case is close to resolution, in which case a reserve will not be recognized until that time.

As of December 31, 2017 and 2016, the Company did not have any material loss contingencies that were provided for and/or disclosure was necessary.

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Financial Instruments

In the normal course of business, the Company is a party to both on- and off-balance sheet financial instruments involving, to varying degrees, elements of credit risk and interest rate risk in addition to the amounts recognized in the consolidated statements of condition.

The following is a summary of the contractual and notional amounts of the Company’s financial instruments:

	December 31,
	2017		2016
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	477,401	$	454,225
Commercial and commercial real estate	49,482		83,103
Residential	41,368		17,795
Letters of credit	2,848		2,580
Other commitments	523		432
Derivative Financial Instruments:
Customer loan swaps	$	703,336	$	532,526
FHLBB advance interest rate swaps	50,000		50,000
Junior subordinated debt interest rate swaps	43,000		43,000
Fixed-rate mortgage interest rate lock commitments	21,746		15,249
Forward delivery commitments	8,065		15,125

Lending-Related Instruments

The contractual amounts of the Company’s lending-related financial instruments do not necessarily represent future cash requirements since certain of these instruments may expire without being funded and others may not be fully drawn upon. These instruments are subject to the Company’s credit approval process, including an evaluation of the customer’s creditworthiness and related collateral requirements. Commitments generally have fixed expiration dates or other termination clauses.

Derivative Financial Instruments

The Company uses derivative financial instruments for risk management purposes (primarily interest rate risk) and not for trading or speculative purposes. The Company controls the credit risk of these instruments through collateral, credit approvals and monitoring procedures. Additionally, as part of Company's normal mortgage origination process, it provides the borrower with the option to lock their interest rate based on current market prices. During the period from commitment date to the loan closing date, the Company is subject to the risk of interest rate change. In an effort to mitigate such risk the Company may enter into forward delivery sales commitments, typically on a best-efforts basis, with certain approved investors. The Company accounts for its interest rate lock commitments on loans within the normal origination process for which it intends to sell as a derivative instrument. Furthermore, the Company records a derivative for its best-effort forward delivery commitments upon origination of a loan identified as held for sale. Should the Company enter into a forward delivery commitment on a mandatory delivery arrangement with an investor it accounts for the forward delivery commitment upon execution of the contract.

Derivative instruments are carried at fair value in the Company’s financial statements. The accounting for changes in the fair value of a derivative instrument is dependent upon whether or not it qualifies and has been designated as a hedge for accounting purposes, and further, by the type of hedging relationship.

The Company has designated its interest rate swaps on its junior subordinated debentures and its interest rate swaps on forecasted 30-day FHLBB borrowings as cash flow hedges. The change in the fair value of the Company's cash flow hedges is accounted for within OCI, net of tax. Quarterly, in conjunction with financial reporting, the Company assesses each cash flow hedge for ineffectiveness. To the extent ineffectiveness is identified, this amount is recorded within the consolidated statements of income. Furthermore, the Company will reclassify the gain or loss on the effective portion of the cash flow hedge from OCI into interest expense within the consolidated statements of income in the period the hedged transaction affects earnings.

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The change in fair value of the Company's other derivative instruments, not designated and qualifying as hedges, are accounted for within the consolidated statements of income.

Customer Loan Swaps:

The Bank will enter into interest rate swaps with its commercial customers, from time to time, to provide them with a means to lock into a long-term fixed rate, while simultaneously the Bank enters into an arrangement with a counterparty to swap the fixed rate to a variable rate to allow it to effectively manage its interest rate exposure.

The Bank's customer loan level derivative program is not designated as a hedge for accounting purposes. As the interest rate swap agreements have substantially equivalent and offsetting terms, they do not materially change the Bank's interest rate risk or present any material exposure to the Company's consolidated statements of income. The Company records its customer loan swaps at fair value and presents such on a gross basis within other assets and accrued interest and other liabilities on the consolidated statements of condition.

The following table presents the total positions, notional and fair value of the Bank's customer loans swaps with its commercial customers and the corresponding interest rate swap agreements with counterparty for the periods indicated:

		December 31,
		2017						2016
	Balance Sheet Location	Number of Positions	Notional		Fair Value			Number of Positions	Notional		Fair Value
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	42	$	226,884	$	(5,036	)	50	$	266,263	$	(1,945	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	23	124,784		1,799			—	—		—
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	65	351,668		3,237			50	266,263		1,945
Total		130	$	703,336	$	—		100	$	532,526	$	—

The Bank seeks to mitigate its customer counterparty credit risk exposure through its loan policy and underwriting process, which includes credit approval limits, monitoring procedures, and obtaining collateral, where appropriate. The Bank seeks to mitigate its institutional counterparty credit risk exposure by limiting the institutions for which it will enter into interest swap arrangements through an approved listing by the Company's Board of Directors. The Company has entered into a master netting arrangement with its counterparty and settles payments with the counterparty quarterly on a net basis. The Bank's arrangement with its institutional counterparty requires it to post cash or other assets as collateral for its FHLBB advance interest rate swap and customer loan swap contracts in a net liability position based on their fair values and the Bank's credit rating or receive cash collateral for contracts in a net asset position as requested.

FHLBB Advance Interest Rate Swaps:

On February 25, 2015, the Bank entered into two one-year forward-starting interest rate swap arrangements with a counterparty on two tranches of 30-day FHLBB advances with a total notional amount of $50.0 million. Each derivative arrangement commenced on February 25, 2016, with one contract that matured on February 25, 2018 and the other set to mature on February 25, 2019. The Bank entered into these interest rate swaps to mitigate its interest rate exposure on borrowings in a rising interest rate environment. The Bank has designated each arrangement as a cash flow hedge in accordance with GAAP, and, therefore, the change in unrealized gains or losses on the derivative instruments is recorded within AOCI, net of tax. Also, quarterly, in conjunction with financial reporting, the Company assesses each derivative instrument for ineffectiveness. To the extent any significant ineffectiveness is identified this amount would be recorded within the consolidated statements of income. For the year ended December 31, 2017, 2016 and 2015, the Company did not record any ineffectiveness on these cash flow hedges within the consolidated statements of income.

The Bank's arrangement with the counterparty requires it to post cash collateral for its FHLBB advance interest rate swap and customer loan swap contracts in a net liability position based on their fair values and the Bank's credit rating. If the interest

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rate swaps are in a net asset position based on their fair value, the counterparty will post collateral to the Bank as requested. The collateral posted by the Company (or counterparty) is not readily available and is presented within cash and due from banks on the consolidated statements of condition. At December 31, 2017, the Bank did not hold any cash at a correspondent bank as collateral on its FHLBB advance interest rate swap and customer loan swap contracts.

The details of the FHLBB advance interest rate swaps for the periods indicated were as follows:

						December 31,
						2017		2016
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)		Fair Value(2)
$	25,000	2/25/2015	2/25/2018	1-Month USD LIBOR	1.54%	$	20	$	(152	)
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	1		(237		)
$	50,000					$	21	$	(389	)

(1) Presented within other assets on the consolidated statements of condition.

(2) Presented within accrued interest and other liabilities on the consolidated statements of condition.

Net payments to the counterparty for the year ended December 31, 2017 and 2016 were $288,000 and $490,000, respectively, and have been classified as cash flows from operating activities in the consolidated statements of cash flows.

Junior Subordinated Debt Interest Rate Swaps:

The Company, from time to time, will enter into an interest rate swap agreement with a counterparty to manage interest rate risk associated with its variable rate borrowings. The Company has entered into a master netting arrangement with its counterparty and settles payments with the counterparty quarterly on a net basis. The interest rate swap arrangements contain provisions that require the Company to post cash or other assets as collateral with the counterparty for contracts that are in a net liability position based on their fair values and the Company’s credit rating. If the interest rate swaps are in a net asset position based on their fair value, the counterparty will post collateral to the Company as requested. At December 31, 2017, the Company had $8.1 million of cash posted as collateral to the counterparty. The collateral posted by the Company was not readily available and has been presented within cash and due from banks on the consolidated statements of condition.

The details of the junior subordinated debt interest rate swaps for the periods indicated were as follows:

						December 31,
						2017			2016
Notional  Amount		Trade  Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)			Fair Value(1)
$	10,000	3/18/2009	6/30/2021	3-Month USD LIBOR	5.09%	$	(527	)	$	(806	)
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	(2,133		)	(2,321		)
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	(2,129		)	(2,290		)
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	4.35%	(1,137		)	(1,211		)
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	4.14%	(1,645		)	(1,744		)
$	43,000					$	(7,571	)	$	(8,372	)

(1) Presented within accrued interest and other liabilities on the consolidated statements of condition.

For the year ended December 31, 2017, 2016 and 2015, the Company did not record any ineffectiveness on these cash flow hedges within the consolidated statements of income.

Net payments to the counterparty for the year ended December 31, 2017, 2016 and 2015 were $1.3 million, $1.5 million and $1.7 million, respectively, and were classified as cash flows from operating activities in the consolidated statements of cash flows.

118

Fixed-Rate Mortgage Interest Rate Locks Commitments:

As part of the origination process of a residential loan, the Company may enter into a rate lock agreement with its borrower, which is considered a fixed-rate mortgage interest rate lock commitment. If the Company has the intention to sell the loan upon origination, it will account for the interest rate lock commitment as a derivative. Our pipeline of mortgage loans with fixed-rate interest rate lock commitments were as follows for the periods indicated:

		December 31,
		2017					2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other assets	$	19,886	$	307		$	12,310	$	202
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	1,860		(22		)	2,939		(15		)
Total		$	21,746	$	285		$	15,249	$	187

For the year ended December 31, 2017, 2016 and 2015, the net unrealized gain from the change in fair value on the Company's mortgage interest rate locks reported within mortgage banking income, net, on the consolidated statements of income were $98,000, $48,000, and $139,000, respectively.

Forward Delivery Commitments:

The Company typically enters into a forward delivery commitment with a secondary market investor, which has been approved by the Company within its normal governance process, at the onset of the loan origination process. The Company may enter into these arrangements with the secondary market investors on a best effort or mandatory delivery basis. The Company's normal practice has been to enter into these arrangements on a best effort basis. The Company enters into these arrangements with the secondary market investors to manage its interest rate exposure. The Company accounts for the forward delivery commitment as a derivative (but does not designate as a hedge) upon origination of a loan for which it intends to sell. The Company's forward delivery commitments on loans held for sale was as follows for the periods indicated:

		December 31,
		2017					2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best-effort")	Other assets	$	6,692	$	158		$	14,250	$	587
Forward delivery commitments ("best-effort")	Accrued interest and other liabilities	1,373		(16		)	875		(309		)
Total		$	8,065	$	142		$	15,125	$	278

For the year ended December 31, 2017, 2016 and 2015, the net unrealized (loss) gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income were $(136,000), $278,000, and $0, respectively.

The table below presents the effect of the Company’s derivative financial instruments included in OCI and current earnings for the periods indicated:

	For The Year Ended December 31,
	2017			2016			2015
Derivatives designated as cash flow hedges
Effective portion of unrealized losses recognized within AOCI during the period, net of tax	$	(248	)	$	(637	)	$	(1,533	)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	1,592		$	2,026		$	1,695

(1) Reclassified into the consolidated statements of income within interest expense.

119

The Company expects approximately $936,000 (pre-tax) to be reclassified to interest expense from OCI, related to the Company’s cash flow hedges, in the next twelve months. This reclassification is due to anticipated payments that will be made and/or received on the swaps based upon the forward curve as of December 31, 2017.

19. Fair Value

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined using quoted market prices. However, in many instances, quoted market prices are not available. In such instances, fair values are determined using various valuation techniques. Various assumptions and observable inputs must be relied upon in applying these techniques. GAAP establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.

GAAP permits an entity to choose to measure certain eligible financial instruments and other items at fair value. The Company elected the fair value option for its loans held for sale. Electing the fair value option for loans held for sale enables the Company’s financial position to more clearly align with the economic value of the actively traded asset.

The fair value hierarchy for valuation of an asset or liability is as follows:

Level 1: Valuation is based upon unadjusted quoted prices in active markets for identical assets and liabilities that the entity has the ability to access as of the measurement date.

Level 2: Valuation is determined from quoted prices for similar assets or liabilities in active markets, from quoted prices for identical or similar instruments in markets that are not active or by model-based techniques in which all significant inputs are observable in the market.

Level 3: Valuation is derived from model-based and other techniques in which at least one significant input is unobservable and which may be based on the Company’s own estimates about the assumptions that market participants would use to value the asset or liability.

In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon model-based techniques incorporating various assumptions including interest rates, prepayment speeds and credit losses. Assets and liabilities valued using model-based techniques are classified as either Level 2 or Level 3, depending on the lowest level classification of an input that is considered significant to the overall valuation. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below.

Financial Instruments Recorded at Fair Value on a Recurring Basis

Loans Held For Sale: The fair value of loans held for sale is determined using quoted secondary market prices or executed sales agreements and is classified as Level 2.

AFS Securities:  The fair value of debt AFS securities is reported utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value of debt securities are classified as Level 2.

The fair value of equity AFS securities is reported utilizing market prices based on recent trading activity and dealer quotes. The equity securities are traded on inactive markets and are classified as Level 2.

Derivatives:  The fair value of the Company's interest rate swaps, including its junior subordinated debt interest rate swaps, FHLBB advance interest rate swaps and customer loan swaps, are determined using inputs that are observable in the market place obtained from third parties including yield curves, publicly available volatilities, and floating indexes and, accordingly, are classified as Level 2 inputs. The credit value adjustments associated with derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. As of December 31, 2017 and 2016, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives due to collateral postings.

120

The fair value of the Company's fixed rate interest rate lock commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, adjusted for the Company's pull-through rate estimate (i.e. estimate of loans within its pipeline that will ultimately complete the origination process and be funded). The Company has classified its fixed rate interest rate lock commitments as Level 2 as the quoted secondary market prices are the more significant input, and while the Company's internal pull-through rate estimate is a Level 3 estimate it is not as critical to the ultimate valuation.

The fair value of the Company's forward delivery commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, and the locked and agreed to price with the secondary market investor. The Company has classified its fixed rate interest rate lock commitments as Level 2.

The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of December 31, 2017 and 2016, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

121

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
December 31, 2017
Financial assets:
Loans held for sale	$	8,103	$	—	$	8,103	$	—
AFS securities:
Obligations of states and political subdivisions	7,335		—		7,335		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	503,302		—		503,302		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	272,799		—		272,799		—
Subordinated corporate bonds	5,657		—		5,657		—
Equity securities	806		—		806		—
Customer loan swaps	5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	307		—		307		—
Forward delivery commitments	158		—		158		—
FHLBB advance interest rate swaps	21		—		21		—
Financial liabilities:
Junior subordinated debt interest rate swaps	7,571		—		7,571		—
Customer loan swaps	5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	22		—		22		—
Forward delivery commitments	16		—		16		—
December 31, 2016
Financial assets:
Loans held for sale	$	14,836	$	—	$	14,836	$	—
AFS securities:
Obligations of states and political subdivisions	9,001		—		9,001		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	480,622		—		480,622		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	283,890		—		283,890		—
Subordinated corporate bonds	5,613		—		5,613		—
Equity securities	741		—		741		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	202		—		202		—
Forward delivery commitments	587		—		587		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,372		—		8,372		—
FHLBB advance interest rate swaps	389		—		389		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	15		—		15		—
Forward delivery commitments	309		—		309		—

122

The Company did not have any transfers between Level 1 and Level 2 of the fair value hierarchy for the year ended December 31, 2017. The Company’s policy for determining transfers between levels occurs at the end of the reporting period when circumstances in the underlying valuation criteria change and result in transfer between levels.

Financial Instruments Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain financial assets and financial liabilities at fair value on a nonrecurring basis in accordance with GAAP. These include assets that are measured at the lower of cost or fair value that were recognized at fair value below cost at the end of the period.

Collateral-Dependent Impaired Loans:  Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Effective January 1, 2017 the Company's policy is to individually evaluate for impairment loans with a principal balance greater than $500,000 or more and are classified as substandard or doubtful and are on non-accrual status. Prior to January 1, 2017, the Company's policy was to individually evaluate for impairment loans with a principal balance greater than $250,000 or more and was classified as substandard or doubtful and was on non-accrual status. Once the population of loans is identified for individual impairment assessment, the Company measures these loans for impairment by comparing net realizable value, which is the fair value of the collateral, less estimated costs to sell, to the carrying value of the loan. If the net realizable value of the loan is less than the carrying value of the loan, then a loss is recognized as part of the ALL to adjust the loan's carrying value to net realizable value. Accordingly, certain collateral-dependent impaired loans are subject to measurement at fair value on a non-recurring basis. Management has estimated the fair values of these assets using Level 2 inputs, such as the fair value of collateral based on independent third-party market approach appraisals for collateral-dependent loans, and Level 3 inputs where circumstances warrant an adjustment to the appraised value based on the age of the appraisal and/or comparable sales, condition of the collateral, and market conditions.

Servicing Assets:  The Company accounts for mortgage servicing assets at cost, subject to impairment testing. When the carrying value of a tranche exceeds fair value, a valuation allowance is established to reduce the carrying cost to fair value. Fair value is based on a valuation model that calculates the present value of estimated net servicing income. The Company obtains a third-party valuation based upon loan level data including note rate, type and term of the underlying loans. The model utilizes two significant unobservable inputs, which are loan prepayment assumptions and the discount rate used, to calculate the fair value of each tranche, and as such, the Company has classified within Level 3 of the fair value hierarchy.

Non-Financial Assets and Non-Financial Liabilities Recorded at Fair Value on a Nonrecurring Basis

The Company has no non-financial assets or non-financial liabilities measured at fair value on a recurring basis. Non-financial assets measured at fair value on a non-recurring basis consist of OREO and goodwill.

OREO:OREO properties acquired through foreclosure or deed in lieu of foreclosure are recorded at net realizable value, which is the fair value of the real estate, less estimated costs to sell. Any write-down of the recorded investment in the related loan is charged to the ALL upon transfer to OREO. Upon acquisition of a property, a current appraisal is used or an internal valuation is prepared to substantiate fair value of the property. After foreclosure, management periodically, but at least annually, obtains updated valuations of the OREO properties and, if additional impairments are deemed necessary, the subsequent write-downs for declines in value are recorded through a valuation allowance and a provision for losses charged to other non-interest expense within the consolidated statements of income. As management considers appropriate, adjustments are made to the appraisal obtained for the OREO property to account for recent sales activity of comparable properties, changes in the condition of the property, and changes in market conditions. These adjustments are not observable in an active market and are classified as Level 3.

Goodwill and Other Intangible Assets: Goodwill represents the excess cost of an acquisition over the fair value of the net assets acquired. The fair value of goodwill is estimated by utilizing several standard valuation techniques, including discounted cash flow analyses, bank merger multiples, and/or an estimation of the impact of business conditions and investor activities on the long-term value of the goodwill. Should an impairment of either reporting unit's goodwill occur, the associated goodwill is written-down to fair value and the impairment charge is recorded within non-interest expense in the consolidated statements of income. The Company conducts an annual impairment test of goodwill in the fourth quarter each year, or more frequently as necessary. There were no indications or triggering events for the year ended December 31, 2017 or 2016 for which management believed that it was more likely than not that goodwill is impaired.

123

The Company's core deposit intangible assets represent the estimated value of acquired customer relationships and are amortized on a straight-line basis over the estimated life of those relationships. Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If necessary, management will test the core deposit intangibles for impairment by comparing its carrying value to the expected undiscounted cash flows of the assets. If the undiscounted cash flows of the intangible assets exceed its carrying value then the intangible assets are deemed to be fully recoverable and not impaired. However, if the undiscounted cash flows of the intangible assets are less than its carrying value than an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. There were no indications or triggering events for the year ended December 31, 2017 or 2016 for which management believes that the carrying amount may not be recoverable.

The table below highlights financial and non-financial assets measured and recorded at fair value on a non-recurring basis as of December 31, 2017 and 2016:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
December 31, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,696	$	—	$	—	$	3,696
Servicing assets(1)	—		—		—		—
Non-financial assets:
OREO	130		—		—		130
December 31, 2016
Financial assets:
Collateral-dependent impaired loans	$	500	$	—	$	—	$	500
Servicing assets(1)	1,090		—		—		1,090
Non-financial assets:
OREO	922		—		—		922

(1) Represents mortgage serving assets deemed to be impaired and a valuation allowance was established to carry at fair value at December 31, 2017 and 2016.

124

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a non-recurring basis at December 31, 2017 and 2016:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
December 31, 2017
Collateral-dependent impaired loans:
Partially charged-off	$	86	Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(18%)
				Estimated selling costs	0 - 10%	(6%)
Specifically reserved	3,610		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
OREO	130		Market approach appraisal of collateral	Management adjustment of appraisal	20%	(20%)
				Estimated selling costs	10%	(10%)
December 31, 2016
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	0 - 10%	(5%)
Specifically reserved	334		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(13%)
				Estimated selling costs	10%	(10%)
OREO	922		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 73%	(7%)
				Estimated selling costs	10%	(10%)

GAAP requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The following methods and assumptions were used by the Company in estimating the fair values of its other financial instruments.

Cash and Due from Banks:  The carrying amounts reported in the consolidated statements of condition approximate fair value that have original maturities of ninety days or less.

HTM securities:  The fair value is estimated utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value is classified as Level 2.

Loans:  For variable rate loans that reprice frequently and have no significant change in credit risk, fair values are based on carrying values. The fair value of other loans is estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities.

Interest Receivable and Payable:  The carrying amounts reported in the consolidated statements of condition approximate fair value.

Deposits:  The fair value of demand, non-interest checking, savings and money market deposits is determined as the amount payable on demand at the reporting date. The fair value of time deposits is estimated by discounting the estimated future cash flows using market rates offered for deposits of similar remaining maturities.

125

Borrowings:  The carrying amounts of short-term borrowings from the FHLB, securities sold under repurchase agreements, notes payable and other short-term borrowings approximate fair value. The fair values of long-term borrowings and commercial repurchase agreements are based on the discounted cash flows using current rates for advances of similar remaining maturities.

Subordinated Debentures: The fair values of are based on quoted prices from similar instruments in inactive markets.

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities at December 31, 2017:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	102,971	$	102,971	$	102,971	$	—	$	—
AFS securities	789,899		789,899		—		789,899		—
HTM securities	94,073		94,913		—		94,913		—
Loans held for sale	8,103		8,103		—		8,103		—
Residential real estate loans(1)	853,283		853,056		—		—		853,056
Commercial real estate loans(1)	1,152,160		1,115,618		—		—		1,115,618
Commercial loans(1)(2)	413,898		401,902		—		—		401,902
Home equity loans(1)	321,011		318,230		—		—		318,230
Consumer loans(1)	17,916		17,335		—		—		17,335
Servicing assets	1,025		1,766		—		1,766		—
Interest receivable	9,595		9,595		—		9,595		—
Customer loan swaps	5,036		5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	307		307		—		307		—
Forward delivery commitments	158		158		—		158		—
FHLBB advance interest rate swaps	21		21		—		21		—
Financial liabilities:
Deposits	$	3,000,491	$	2,995,269	$	—	$	2,995,269	$	—
Short-term borrowings	541,867		541,683		—		541,683		—
Long-term borrowings	10,720		10,699		—		10,699		—
Subordinated debentures	58,911		44,333		—		44,333		—
Interest payable	564		564		—		564		—
Junior subordinated debt interest rate swaps	7,571		7,571		—		7,571		—
Customer loan swaps	5,036		5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	22		22		—		22		—
Forward delivery commitments	16		16		—		16		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

126

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities at December 31, 2016:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	87,707	$	87,707	$	87,707	$	—	$	—
AFS securities	779,867		779,867		—		779,867		—
HTM securities	94,609		94,596		—		94,596		—
Loans held for sale	14,836		14,836		—		14,836		—
Residential real estate loans(1)	798,334		800,122		—		—		800,122
Commercial real estate loans(1)	1,038,626		1,006,249		—		—		1,006,249
Commercial loans(1)(2)	389,624		391,493		—		—		391,493
Home equity loans(1)	327,713		327,292		—		—		327,292
Consumer loans(1)	17,151		16,845		—		—		16,845
Servicing assets	1,210		1,701		—		1,701		—
Interest receivable	8,654		8,654		—		8,654		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	202		202		—		202		—
Forward delivery commitments	587		587		—		587		—
Financial liabilities:
Deposits	$	2,828,529	$	2,826,484	$	—	$	2,826,484	$	—
Short-term borrowings	530,129		530,435		—		530,435		—
Long-term borrowings	10,791		10,836		—		10,836		—
Subordinated debentures	58,755		41,660		—		41,660		—
Interest payable	534		534		—		534		—
Junior subordinated debt interest rate swaps	8,372		8,372		—		8,372		—
FHLBB advance interest rate swaps	389		389		—		389		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	15		15		—		15		—
Forward delivery commitments	309		309		—		309		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

127

20. Parent Company Financial Statements

Following are the condensed statements of condition, income and cash flows for the Company's parent company:

STATEMENTS OF CONDITION

	December 31,
	2017		2016
ASSETS
Cash	$	29,365	$	29,905
Investment in subsidiary	444,235		429,100
Receivable from subsidiary	107		107
Other assets	14,806		12,420
Total assets	$	488,513	$	471,532
LIABILITIES AND SHAREHOLDERS’ EQUITY
Subordinated debentures	$	58,911	$	58,755
Due to subsidiary	17		37
Other liabilities	26,172		21,193
Shareholders’ equity	403,413		391,547
Total liabilities and shareholders’ equity	$	488,513	$	471,532

STATEMENTS OF INCOME

	For The Year Ended December 31,
	2017			2016		2015
Operating Income
Dividend income from subsidiary	$	16,800		$	16,000	$	39,200
Other income (loss)	145			239		(18		)
Total operating income	16,945			16,239		39,182
Operating Expenses
Interest on borrowings	3,408			3,415		2,734
Fees to Bank	160			160		160
Other operating expenses	592			748		469
Total operating expenses	4,160			4,323		3,363
Income before equity in undistributed earnings of subsidiaries and income taxes	12,785			11,916		35,819
Equity in undistributed income (losses) of subsidiaries	17,405			26,773		(15,999		)
Income before income taxes	30,190			38,689		19,820
Income tax (expense) benefit	(1,714		)	1,378		1,132
Net Income	$	28,476		$	40,067	$	20,952

128

STATEMENTS OF CASH FLOWS

	For The Year Ended December 31,
	2017			2016			2015
Operating Activities
Net income	$	28,476		$	40,067		$	20,952
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed (income) losses of subsidiaries	(17,405		)	(26,655		)	4,573
Gain on sale of investment securities	(32		)	(4		)	—
(Increase) decrease in receivable from subsidiaries	—			1,819			(1,901		)
(Increase) decrease in other assets	(1,930		)	1,213			(2,175		)
Increase (decrease) in due to subsidiaries	(20		)	(1,179		)	1,216
Increase (decrease) in other liabilities	3,721			(2,519		)	320
Net cash provided by operating activities	12,810			12,742			22,985
Investing Activities
Acquisition of SBM, net of cash acquired	—			—			(25,319		)
Proceeds from sale of investment securities	110			84			—
Net cash provided by (used in) investing activities	110			84			(25,319		)
Financing Activities
Issuance of subordinated debt, net of issuance costs	—			—			14,464
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings and tax benefit	(606		)	894			753
Capital contribution from subsidiaries	1,469			1,997			836
Equity issuance costs	—			—			(612		)
Cash dividends paid on common stock and cash in-lieu paid for fractional shares due to stock split	(14,323		)	(12,393		)	(9,785		)
Net cash provided by (used in) financing activities	(13,460		)	(9,502		)	5,656
Net (decrease) increase in cash	(540		)	3,324			3,322
Cash at beginning of year	29,905			26,581			23,259
Cash at end of year	$	29,365		$	29,905		$	26,581

129

21. Quarterly Results of Operations (Unaudited)

The following table presents a summary of the quarterly results of operations for the year ended:

	December 31,
	2017									2016
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter(1)			First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest income	$	32,414	$	33,940	$	34,710	$	35,040		$	31,981	$	32,775	$	32,594	$	32,276
Interest expense	4,559		5,314		5,550		5,381			4,029		4,271		4,222		4,032
Net interest income	27,855		28,626		29,160		29,659			27,952		28,504		28,372		28,244
Provision for credit losses	579		1,401		817		238			872		2,852		1,279		255
Non-interest income	8,572		9,888		10,299		9,840			7,917		10,552		11,001		10,151
Non-interest expense	21,428		22,158		21,825		23,099			22,909		22,330		22,149		22,508
Income before income taxes	14,420		14,955		16,817		16,162			12,088		13,874		15,945		15,632
Income tax expense	4,344		4,721		5,478		19,335			3,442		4,258		5,042		4,730
Net income (loss)	$	10,076	$	10,234	$	11,339	$	(3,173	)	$	8,646	$	9,616	$	10,903	$	10,902
Per common share:
Basic	$	0.65	$	0.66	$	0.72	$	(0.20	)	$	0.56	$	0.62	$	0.70	$	0.70
Diluted	$	0.64	$	0.66	$	0.72	$	(0.20	)	$	0.56	$	0.62	$	0.70	$	0.70

(1) In the fourth quarter of 2017, the Company recognized $14.3 million of additional income tax expense upon the revaluation of its deferred tax assets and liabilities upon enactment of the Tax Act on December 22, 2017, which lowered the federal corporate tax rate from 35.0% to 21.0%, effective January 1, 2018. The impact to fourth quarter 2017 basic and diluted EPS was $0.91 per share.

130

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Directors

Camden National Corporation

Opinion on the Financial Statements

We have audited the accompanying consolidated statements of condition of Camden National Corporation and Subsidiary (the Company) as of December 31, 2017 and 2016, the related consolidated statements of income, comprehensive income, changes in shareholders' equity and cash flows for each of the three years in the period ended December 31, 2017, and the related notes to the consolidated financial statements (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017, in conformity with accounting principles generally accepted in the United States of America. 

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013, and our report dated March 9, 2018 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

We have served as the Company’s auditor since 2014.

/s/ RSM US LLP

New York, New York

March 9, 2018

131

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Directors

Camden National Corporation

Opinion on the Internal Control Over Financial Reporting

We have audited Camden National Corporation and Subsidiary’s (the Company) internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated statements of condition of the Company as of December 31, 2017 and 2016, and the related consolidated statements of income, comprehensive income, changes in shareholders’ equity and cash flows for each of the three years in the period ended December 31, 2017, and our report dated March 9, 2018 expressed an unqualified opinion.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB.Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ RSM US LLP

New York, New York

March 9, 2018

132

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Not applicable.

Item 9A. Controls and Procedures

As required by Rule 13a-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), the Company’s management conducted an evaluation with the participation of the Company’s Chief Executive Officer and Chief Operating Officer and Chief Financial Officer & Principal Financial and Accounting Officer, regarding the effectiveness of the Company’s disclosure controls and procedures, as of the end of the last fiscal year. In designing and evaluating the Company’s disclosure controls and procedures, the Company and its management recognize that any controls and procedures, no matter how well designed and operated, can provide only a reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply its judgment in evaluating and implementing possible controls and procedures. Based upon that evaluation, the Chief Executive Officer and Chief Operating Officer and Chief Financial Officer & Principal Financial and Accounting Officer concluded that they believe the Company’s disclosure controls and procedures are effective to ensure that information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. We intend to continue to review and document our disclosure controls and procedures, including our internal controls and procedures for financial reporting, and we may from time to time make changes to the disclosure controls and procedures to enhance their effectiveness and to ensure that our systems evolve with our business.

There was no change in our internal control over financial reporting that occurred during the period covered by this Annual Report on Form 10-K that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

MANAGEMENT’S ANNUAL REPORT

ON INTERNAL CONTROL OVER FINANCIAL REPORTING

The Management of the Company is responsible for the preparation and fair presentation of the financial statements and other financial information contained in this Form 10-K. Management is also responsible for establishing and maintaining adequate internal control over financial reporting and for identifying the framework used to evaluate its effectiveness. Management has designed processes, internal controls and a business culture that foster financial integrity and accurate reporting. The Company’s comprehensive system of internal control over financial reporting was designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of the consolidated financial statements of the Company in accordance with accounting principles generally accepted in the United States of America. The Company’s accounting policies and internal control over financial reporting, established and maintained by management, is under the general oversight of the Company’s Board of Directors, including the Board of Directors’ Audit Committee.

Management has made a comprehensive review, evaluation, and assessment of the Company’s internal control over financial reporting as of December 31, 2017. The standard measures adopted by management in making its evaluation are the measures in Internal Control — Integrated Framework (2013) published by the Committee of Sponsoring Organizations of the Treadway Commission. Based upon its review and evaluation, management concluded that, as of December 31, 2017, the Company’s internal control over financial reporting was effective and that there were no material weaknesses. However, Management recognizes a control system, no matter how well designed and operated, has inherent limitations and can provide only reasonable, not absolute, assurance that the control system’s objectives will be met and may not prevent or detect all error and fraud. Therefore, even a system determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation.

RSM US LLP, an independent registered public accounting firm, which has audited and reported on the consolidated financial statements contained in this Form 10-K, has issued its written attestation report on management’s assessment of the Company’s internal control over financial reporting which precedes this report.

133

Item 9B. Other Information

None.

134

PART III

Item 10. Directors, Executive Officers and Corporate Governance

Certain information about our executive officers required by Item 401(b) of Regulation S-K as of December 31, 2017 was included within Item 1. Business — Executive Officers. All other information required by this item is incorporated by reference from the material responsive to such item in the Company’s Proxy Statement for the 2018 Annual Meeting of Shareholders to be held on April 24, 2018.

Item 11. Executive Compensation

The information required by this item is incorporated by reference from the material responsive to such item in the Company’s Proxy Statement for the 2018 Annual Meeting of Shareholders to be held on April 24, 2018.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Securities authorized for issuance under equity compensation plans are as follows:

	Number of Securities to Be Issued Upon Exercise of Outstanding Options, Warrants and Rights (a)	Weighted Average Exercise Price of Outstanding Options, Warrants and Rights (b)		Number of Securities Remaining Available for Future Issuance (Excluding Securities in Column (a)) (c)(1)
Equity compensation plans approved by shareholders	173,300	$	6.36	960,473
Equity compensation plans not approved by shareholders	—	—		—
Total	173,300	$	6.36	960,473

(1) Represents the 1.2 million shares available under the 2012 Equity and Incentive Plan less awards granted plus shares added back due to the forfeiture, cancellation or reacquisition by the Company for the settlement of an award to cover the exercise price or tax withholding under the current and previous plans.

Refer to Note 1, Business and Summary of Significant Accounting Policies, and Note 15, Stock-Based Compensation Plans, within Item 8. Financial Statements and Supplementary Data for further information related to the Company’s equity compensation plans.

The information required by this item is incorporated by reference from the material responsive to such item in the Company’s Proxy Statement for the 2018 Annual Meeting of Shareholders to be held on April 24, 2018.

Item 13. Certain Relationships, Related Transactions and Director Independence

The information required by this item is incorporated by reference from the material responsive to such item in the Company’s Proxy Statement for the 2018 Annual Meeting of Shareholders to be held on April 24, 2018.

Item 14. Principal Accounting Fees and Services

The information required by this item is incorporated by reference from the material responsive to such item in the Company’s Proxy Statement for the 2018 Annual Meeting of Shareholders to be held on April 24, 2018.

135

PART IV

Item 15. Exhibits and Financial Statement Schedules

(a) 1. Index to Financial Statements:

The consolidated financial statements of the Company and report of the Company’s independent registered public accounting firm incorporated herein are included in Item 8 of this Report, as follows:

	Page
Consolidated Statements of Condition	63
Consolidated Statements of Income	64
Consolidated Statements of Comprehensive Income	65
Consolidated Statements of Changes in Shareholders’ Equity	66
Consolidated Statements of Cash Flows	67
Notes to Consolidated Financial Statements	69
Report of Independent Registered Public Accounting Firm	131

2. Financial Statement Schedules:

Schedules have been omitted because they are not applicable or are not required under the instructions contained in Regulation S-X or because the information required to be set forth therein are included in the consolidated financial statements or notes thereto.

3. Exhibits:

Exhibit No.	Definition
2.1	Agreement and Plan of Merger dated as of March 29, 2015 by and among Camden National Corporation, Atlantic Acquisitions, LLC, and SBM Financial, Inc. (incorporated herein by reference to Exhibit 2.1 to the Company’s Form 8-K filed with the Commission on March 30, 2015).
3.1	Articles of Incorporation of Camden National Corporation, as amended (incorporated herein by reference to Exhibit 3.i.1 to the Company’s Form 10-K filed with the Commission on March 2, 2011).
3.2	Amendment to the Articles of Incorporation, as amended (incorporated herein by reference to Exhibit 3.1 to the Company's Form 8-K filed with the Commission on April 26, 2017).
3.3	Amended and Restated Bylaws of Camden National Corporation (incorporated herein by reference to Exhibit 3.2 to the Company's Form 8-K/A filed with the Commission on December 23, 2016).
10.1+	Camden National Corporation 2003 Stock Option and Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Form 10-Q filed with the Commission on August 8, 2008).
10.2+	Form of Incentive Stock Option Agreement under the Camden National Corporation 2003 Stock Option and Incentive Plan (incorporated herein by reference to Exhibit 10.4 to the Company’s Form 10-K filed with the Commission on March 2, 2011).
10.3+	Form of Restricted Stock Award Agreement under the Camden National Corporation 2003 Stock Option and Incentive Plan (incorporated herein by reference to Exhibit 10.5 to the Company’s Form 10-K filed with the Commission on March 2, 2011).
10.4+	Camden National Corporation Management Stock Purchase Plan under the Camden National Corporation 2003 Stock Option and Incentive Plan (incorporated herein by reference to Exhibit 10.3 to the Company’s Form 8-K filed with the Commission on May 1, 2008).
10.5+	Camden National Corporation 2012 Equity and Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company’s Form 8-K filed with the Commission on May 8, 2012).

136

Exhibit No.	Definition
10.6+	Amendment to Camden National Corporation 2012 Equity and Incentive Plan, dated as of March 9, 2015 (incorporated herein by reference to Exhibit 10.6 to the Company's Form 10-K filed with the Commission on March 10, 2015).
10.7+	Second Amendment to Camden National Corporation 2012 Equity and Incentive Plan, dated as of March 31, 2015 (incorporated herein by reference to Exhibit 10.1 to the Company’s Form 10-Q filed with the Commission on August 7, 2015).
10.8+	Form of Incentive Stock Option Agreement under the Camden National Corporation 2012 Equity and Incentive Plan (incorporated herein by reference to Exhibit 10.6 to the Company's Form 10-K filed with the Commission on February 28, 2013).
10.9+	Form of Restricted Stock Award Agreement under the Camden National Corporation 2012 Equity and Incentive Plan (incorporated herein by reference to Exhibit 10.7 to the Company's Form 10-K filed with the Commission on February 28, 2013).
10.10+	Camden National Corporation Management Stock Purchase Plan under the Camden National Corporation 2012 Equity and Incentive Plan (incorporated herein by reference to Exhibit 10.8 to the Company's Form 10-K filed with the Commission on February 28, 2013).
10.11*+	Camden National Corporation Defined Contribution Retirement Plan.
10.12+	Form of Confidentiality, Non-Competition and Non-Solicitation Agreement by and between Camden National Corporation and certain executives (incorporated herein by reference to Exhibit 10.11 to the Company’s Form 10-K filed with the Commission on March 10, 2015).
10.13+	Supplemental Executive Retirement Program (incorporated herein by reference to Exhibit 99.1 to the Company’s Form 8-K filed with the Commission on February 4, 2008).
10.14+	Union Trust Company’s Amended and Restated Deferred Compensation Agreement (incorporated herein by reference to Exhibit 10.1 to the Company’s Form 10-Q filed with the Commission on May 12, 2008).
10.15+	Camden National Corporation Executive Deferred Compensation Plan (incorporated herein by reference to Exhibit 10.9 to the Company’s Form 10-K filed with the Commission on March 17, 2008).
10.16+	Amendment to Camden National Corporation Executive Deferred Compensation Plan, dated as of February 26, 2013 (incorporated herein by reference to Exhibit 10.13 to the Company's Form 10-K filed with the Commission on February 28, 2013).
10.17+	Amendment and Restatement of Camden National Corporation Director Deferred Compensation Plan (incorporated herein by reference to Exhibit 10.9 to the Company’s Form 10-K filed with the Commission on March 9, 2007).
10.18+	2007 Amendment to the Camden National Corporation Director Deferred Compensation Plan (incorporated by reference to Exhibit 10.10 to the Company’s Form 10-K filed with the Commission on March 17, 2008).
10.19	Camden National Corporation Audit Committee Complaint Procedures (incorporated herein by reference to Exhibit 10.12 to the Company’s Form 10-K filed with the Commission on March 2, 2011).
10.20+	2010 Executive Incentive Compensation Program (incorporated herein by reference to Exhibit 10.19 to the Company’s Form 10-K filed with the Commission on March 12, 2010).
10.21+	Form of Change in Control Agreement for chief executive officer and other executive officers (incorporated herein by reference to Exhibit 10.21 in the Company’s Form 10-K filed with the Commission on March 10, 2015).
10.22+	Camden National Corporation 2014-2016 Amended and Restated Long-Term Performance Share Plan (incorporated herein by reference to Exhibit 10.24 to the Company's Form 8-K filed with the Commission on March 25, 2014).
10.23+	Camden National Corporation 2015-2017 Amended and Restated Long-Term Performance Share Plan (incorporated herein by reference to Exhibit 10.27 to the Company's Form 8-K filed with the Commission on July 6, 2015).
10.24+	Camden National Corporation 2016-2018 Amended and Restated Long-Term Performance Share Plan (incorporated herein by reference to Exhibit 10.26 to the Company's Form 8-K filed with the Commission on March 29, 2016).
10.25+	Amended and Restated 2017-2019 Long-Term Performance Share Plan (incorporated herein by reference to Exhibit 10.26 to the Company's Form 8-K filed with the Commission on March 28, 2017).

137

Exhibit No.	Definition
11.1	Statement regarding computation of per share earnings (incorporated herein by reference to Note 14 to the Notes to Consolidated Financial Statements in this report.)
14	Camden National Corporation Code of Business Conduct and Ethics (incorporated herein by reference to Exhibit 14 to the Company’s Form 10-K filed with the Commission on March 2, 2011).
21*	Subsidiaries of the Company.
23.1*	Consent of RSM US LLP.
31.1*	Certification of President and Chief Executive Officer required by Section 302 of the Sarbanes- Oxley Act of 2002.
31.2*	Certification of Principal Financial and Accounting Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as required by Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**	Certification of Principal Financial and Accounting Officer pursuant to 18 U.S.C. Section 1350, as required by Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following materials from the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 formatted in XBRL (eXtensible Business Reporting Language): (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Operations, (iii) the Consolidated Statements of Stockholders’ Equity, (iv) the Consolidated Statements of Comprehensive Income (v) the Consolidated Statements of Cash Flows, and (vi) related notes to these financial statements.

* Filed herewith

** Furnished herewith

+ Management contract or a compensatory plan or arrangement.

Item 16. Form 10-K Summary

None.

138

SIGNATURES

Pursuant to the requirement of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: March 9, 2018	CAMDEN NATIONAL CORPORATION
	/s/ Gregory A. Dufour
	Gregory A. Dufour President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the persons on behalf of the Registrant and in the capacities and on the dates indicated.

Name	Position	Date
/s/ Gregory A. Dufour	President, Director and Chief Executive Officer	March 9, 2018
Gregory A. Dufour
/s/ Deborah A. Jordan	Chief Operating Officer, Chief Financial Officer, and Principal Financial and Accounting Officer	March 9, 2018
Deborah A. Jordan
/s/ Lawrence J. Sterrs	Chair and Director	March 9, 2018
Lawrence J. Sterrs
/s/ Ann W. Bresnahan	Director	March 9, 2018
Ann W. Bresnahan
/s/ Craig N. Denekas	Director	March 9, 2018
Craig N. Denekas
/s/ David C. Flanagan	Director	March 9, 2018
David C. Flanagan
/s/ S. Catherine Longley	Director	March 9, 2018
S. Catherine Longley
/s/ David J. Ott	Director	March 9, 2018
David J. Ott
/s/ James H. Page	Director	March 9, 2018
James H. Page
/s/ Carl J. Soderberg	Director	March 9, 2018
Carl J. Soderberg

139

EX-10.11

DEFINED CONTRIBUTION RETIREMENT PLAN

This Camden National Corporation Second Amended and Restated Defined Contribution Retirement Plan (the “Plan”), effective as of January 30, 2018 is an amendment and restatement of the Camden National Corporation Amended and Restated Defined Contribution Retirement Plan, effective as of February 26, 2013 (as that plan was amended on March 9, 2015), which, in turn was an amendment and restatement of the Camden National Corporation Defined Contribution Retirement Plan, originally effective January 1, 2008. The Plan is maintained for the benefit of a select group of management employees of the Company and its participating Subsidiaries, in order to provide such employees with certain deferred compensation benefits. The Plan is an unfunded deferred compensation plan that is intended to qualify for the exemptions provided in sections 201, 301, and 401 of ERISA and is intended to comply with Section 409A of the Internal Revenue Code of 1986, as amended. This Plan is a component plan of the Camden National Corporation 2012 Equity and Incentive Plan (the “2012 Incentive Plan”). Except as specifically provided herein, this Plan shall be subject to and governed by all the terms and conditions of the 2012 Incentive Plan, including the powers of the Committee set forth in Section 2(b) of the 2012 Incentive Plan. Capitalized terms in this Plan shall have the meaning specified in the 2012 Incentive Plan, unless a different meaning is specified herein.

SECTION 1: DEFINITIONS

These words and phrases shall have these meanings unless a different meaning is plainly required by the context:

1.1 “Beneficiary” shall mean the person or persons entitled to receive the balance credited to a Participant’s Account under the Plan upon the death of the Participant, as provided in Section 5.2.

1.2 “Bonus” shall mean the performance-based compensation paid to participants under the Executive Incentive Plan.

1.3 “Change of Control” shall have the meaning provided to such term in the 2012 Incentive Plan.

1.4 “Compensation” shall mean gross salary and Bonus payable before pre-tax deferrals with respect to other benefit plans and deferred compensation arrangements, excluding imputed income and any items of extraordinary compensation determined by the Administrator to be excluded for purposes of this Plan.

1.5 "Disability" shall have the same meaning as provided in the 2012 Incentive Plan for Awards that are determined to be subject to Code Section 409A.

1.6 “Employer” shall mean the Company and each participating Subsidiary. At such times and under such conditions as the Board may direct, one or more other Subsidiary may become participating Subsidiaries or a participating Subsidiary may be withdrawn from the Plan.

1.7 “ERISA” shall mean the Employee Retirement Income Security Act of 1974, as amended. Reference to a specific section of ERISA shall include such section, any valid regulation promulgated thereunder, and any comparable provision of any future legislation amending, supplementing or superseding such section.

1.8 “Participant” shall mean an Employee who has become a Participant in the Plan pursuant to Section 2.1 and has not ceased to be a Participant pursuant to Section 2.2.

1.9 “Participant’s Account” or “Account” shall mean, as to any Participant, the separate account maintained on the books of the Company in order to reflect his or her interest under the Plan.

1.10 “Plan” shall mean the Camden National Corporation Second Amended and Restated Defined Contribution Retirement Plan, as set forth in this instrument and as hereafter amended from time to time.

1.11 “Plan Year” shall mean the calendar year.

1.12 “Termination of Employment” shall mean a reduction in the services provided by the Participant to the Employer to a level that is 20% or less than the level of services so provided for the 36 months immediately preceding such reduction.

SECTION 2: PARTICIPATION

2.1 Participation. Participation in the Plan by an Employee must be approved by the Committee and will begin as of January 1 of the Plan Year following approval by the Committee.

2.2 Termination of Participation. An Employee who has become a Participant shall remain a Participant until his or her entire Vested Amount (as defined below) is distributed or forfeited, as applicable.

SECTION 3: PARTICIPANT’S ACCOUNT

3.1 At the direction of the Committee, there shall be established and maintained an Account on the books of the Company for each Participant.

3.2 Annually, on March 15 (or the closest business day to March 15), beginning during the first year of participation in the Plan, the Committee will credit each Participant’s Account with an amount equal to ten (10) percent of the Participant’s Compensation in the prior calendar year. This date will be referenced as the Grant Date. For Participants that begin employment with the Company on or after January 1, 2017, a pro rata contribution will be made with respect to the Participant’s first year of employment. For example, if the Participant began employment with the Company on July 1, 2017, the Company would make a contribution on March 15, 2018 equaling ten percent of the Participant’s Compensation for the six months of 2017 in which the Participant was employed with the Company.

3.3 Annual credits to a Participant’s Account, based on the amount in Section 3.2, shall be denominated in Deferred Stock Awards (rounded down to the nearest whole share) based on the fair market value of the Company Stock on the Grant Date.

3.4 Each Participant shall be furnished with periodic statements of his or her Account, at least annually, reflecting the status of his or her interest in the Plan.

SECTION 4: VESTING AND FORFEITURE

4.1 The terms of a Participant’s vesting shall be determined by separate agreement with the Participant, provided, however, that for any employee that is an active Participant as of the date this Plan is adopted, vesting shall occur ratably (rounded to the nearest percent) over the period from the first day of participation until the Participant reaches age 65, at which time the Participant is one hundred (100) percent vested. Each Participant will be furnished with a copy of his or her unique vesting schedule upon approval for participation by the Committee, which will show the Vested Percentage for each anniversary.

4.2 Anything to the contrary in this Plan notwithstanding, the balance in the Account will be immediately forfeited, and all rights of the Participant and his or her beneficiaries hereunder shall become null and void, if the Participant’s employment with the Company is terminated for Cause.

SECTION 5: DISTRIBUTIONS

5.1 No distributions shall be made from the Account of a Participant until the Participant Terminates Employment with the Company, except as provided in Section 10 below. The portion of the Account to be distributed will be equal to the Deferred Stock Awards in the Account times the Vested Percentage from Section 4.1, the result being the Vested Amount. The Vested Amount will be reduced by the amount required to be withheld for income taxes, and the net Vested Amount will be distributed in shares of Company Stock. Amounts contributed to Participants’ accounts prior to 2014 shall be distributed in one lump sum distribution within ninety (90) days of the Termination of Employment, except as provided in Section 5.5 below. For amounts contributed to Participants’ accounts in 2014 and thereafter, a Participant may elect to have the amounts distributed in annual installments over 5, 10 or 15 years.  Such election shall be irrevocably made no later than December 31, 2013, except that, with respect to the first year in which an individual becomes a Participant in this Plan, that Participant shall make his or her election, with respect to future compensation only, within 30 days of becoming a Participant. All shares of Company Stock that are distributed to “insiders” (as that term is defined in the Securities and Exchange Act of 1933) shall be subject to the rules and regulations about the purchase and sale of Company Stock.

a. In the event the total amount remaining due under the installment payments described in this Section 5.1 becomes less than the IRS limit under section 402(g) of the Code for the year in which the next installment payment is due, the Company may, in its sole discretion, pay to the Participant the entire amount remaining due in a lump sum on or before the due date of the next installment payment.

5.2 If the Participant terminates employment due to death or Disability, the Account will be one hundred (100) percent vested regardless of the actual years of participation in the Plan. The Participant may designate in writing a Beneficiary to receive any distribution which may become payable as the result of the Participant’s death. If no Beneficiary designation is in effect upon the Participant’s death, the Beneficiary shall be the Participant’s estate.

5.3 Effect of a Change of Control. If there is a Change of Control, then, notwithstanding any     other provision of this Plan, the following shall occur:

• A Participant shall be one hundred (100) percent vested in the Participant’s Account if, the Participant incurs a Termination of Employment either (i) by the Company without Cause (as defined below), or (ii) by the participant with Good Reason (as defined below), in each case, either (x) within two (2) years following a Change of Control or (y) within three (3) months prior to a Change of Control, provided a definitive agreement with respect to such Change of Control has been entered into by the parties thereto as of the date of such Termination of Employment, with such accelerated vesting effective as of the date of such Termination of Employment.

• The Change of Control itself shall not constitute a distributable event, except with respect to a special Plan termination under Section 10.4.

For purposes of this Section 5.3, the following terms shall have the following meanings:

‘Cause’ shall have the meaning provided to such tern in the 2012 Incentive Plan.

‘Good Reason’ shall have the same meaning as in the applicable Participant’s written employment agreement or change of control agreement (or similar agreement). In the absence of such definition, ‘Good Reason’ shall mean (a) a material diminution in the Participant’s annual base salary which shall mean a reduction in the Participant’s salary of at least ten percent (10%); (b) a material diminution in the Participant’s authority, duties, or responsibilities; or (c) any other action or inaction that constitutes a material breach by the Company of the Participant’s employment arrangement. The Participant is required to provide notice to the Company of the condition giving rise to the Good Reason within a period not to exceed ninety (90) days of the initial existence of the condition. The Company shall have thirty (30) days from the date of any notice from the Participant alleging that a Good Reason condition exists, to remedy the Good Reason condition. If the Company fails to remedy the Good Reason condition within thirty (30) days, the Participant may terminate employment for Good Reason, unless the Company disagrees that a Good Reason condition exists.

5.4 If a Participant under the Plan qualifies as a “Specified Employee” as defined in Code Section 409A, and the stock of the Company or any affiliate is publicly traded, no distribution may be made hereunder until six (6) months after the Participant’s separation from service as defined under Code Section 409A (or, if earlier, the date of death of the Participant).

5.5 Notwithstanding any other provision in this Plan to the contrary, no distributions may be made under this Plan prior to the occurrence of a distribution event as defined in Code Section 409A(a)(2), except and to the extent that the Plan may currently allow or hereafter be amended to allow an acceleration of payment under one of the applicable exceptions contained in Treasury Regulation Section 1.409A-3(j)(4).

SECTION 6: BENEFIT CLAIM AND APPEAL PROCEDURES

6.1 Claim for Benefits. The following Claim and Appeal Procedures are intended to satisfy the minimum standards of Section 503 of ERISA pursuant to which individuals or estates may claim Plan benefits and appeal denials of such claims. Any claim for benefits or other rights under the Plan shall be made in writing to the Administrator. If such claim is wholly or partially denied by the Administrator, the Administrator shall, within a reasonable period of time, but not later than sixty (60) days after receipt of the claim, notify the claimant of the denial of the claim. Such notice of denial shall be in writing and shall contain:

a. The specific reason or reasons for the denial of the claim;

b. A reference to the relevant Plan provisions upon which the denial is based;

c. A description of any additional material or information necessary for the claimant to perfect the claim, together with an explanation of why such material or information is necessary; and

d. An explanation of the Plan’s claim review procedure.

6.2 Requests for Review of a Denial of a Claim. Upon the receipt by the claimant of written notice of the denial of a claim, the claimant may within ninety (90) days file a written request to the Administrator requesting a review of the denial of the claim. Such review shall include a hearing if deemed necessary by the Administrator. In connection with the claimant’s appeal of the denial of his or her claim, the claimant may review relevant documents and may submit issues and comments in writing. To provide for fair review and a full record, the claimant must submit in writing all facts, reasons and arguments in support of his or her position within the time allowed for filing a written request for review. All issues and matters not raised for review will be deemed waived by the claimant.

6.3 Decision upon Review of a Denial of a Claim. The Administrator shall render a decision on the claim review promptly, but no more than sixty (60) days after the receipt of the claimant’s request for review, unless special circumstances (such as the need to hold a hearing) require an extension of time, in which case the sixty (60) day period shall be extended to one hundred-twenty (120) days. Such decision shall:

a. Include specific reasons for the decision;

b. Be written in a manner calculated to be understood by the claimant; and

c. Contain specific references to the relevant Plan provisions upon which the decision is based.

The decision of the Administrator shall be final and binding in all respects on the Company, the claimant and any other person claiming an interest in the Plan through or on behalf of the claimant.

6.4    Mediation and Litigation of Disputes.

a. Mediation. If a claimant is not satisfied with the denial of his or her claim under the review procedures of Section 6.3, the claimant and the Company may try to settle the claim in good faith through mediation administered by the American Arbitration Association under its Commercial Mediation Procedures. The parties shall share equally the mediator’s costs and fees, and bear separately their own respective costs of mediation. All mediation shall be conducted at a mutually agreeable convenient location within the State of Maine. Mediation records shall not be admissible in any subsequent litigation and the positions of the parties taken in mediation shall not be binding or taken as any concession, representation or waiver, outside of the mediation process.

b. Litigation. No litigation may be commenced by or on behalf of a claimant with respect to this Plan until after the claim review and mediation process described in this Section 6 has been exhausted. Judicial review of Administrator action shall be limited to whether the Administrator acted in an arbitrary and capricious manner.

SECTION 7: FUNDING

7.1 Unfunded Plan. All amounts credited to a Participant’s Account under the Plan shall continue for all purposes to be a part of the general assets of the Company. The interest of the Participant in his or her Account, including his or her right to distribution thereof, shall be an unsecured claim against the general assets of the Company. Although the Company may choose to invest a portion of its general assets for purposes of enabling it to make distributions under the Plan, nothing contained in the Plan shall give any Participant or beneficiary any interest in or claim against any specific assets of the Company.

SECTION 8: MODIFICATION OR TERMINATION OF PLAN

8.1 Right to Amend or Terminate. The Plan may be amended in whole or in part by a written instrument adopted by the Board (or the Board’s designee) at any time. Notice of any material amendment shall be given in writing to each Participant. No amendment shall retroactively decrease either the balance of a Participant’s Account or a Participant’s interest in his or her Account as existing immediately prior to the later of the effective date or adoption date of such amendment. No amendment shall change the time or form of any payment due hereunder unless such change conforms to the requirements of Code Section 409A.

8.2 Company’s Right to Terminate. The Company reserves the sole right to terminate the Plan, in whole or in part, by action of its Board at any time. In the event of any such termination, each affected Participant shall maintain his or her vesting percentage in his or her Plan Accounts determined as of the Plan termination date, and shall be entitled to receive a distribution upon the occurrence of the first Code Section 409A distributable event thereafter. Consequently, the Account of each affected Participant shall be distributed in the manner provided in Section 5 to the extent such Plan termination may be treated as a distributable event under Code Section 409A. Notwithstanding the foregoing, any distributions upon a Plan termination hereunder shall be made in such time and manner, and subject to such other conditions (if any are applicable), as will comply with the termination rules under Treasury Regulation 1.409A-3(j)(4)(ix).

8.3     Special Termination. Notwithstanding any other provisions of the Plan to the contrary, the Plan shall terminate if:

a. It is determined to the satisfaction of the Committee that the Plan no longer qualifies as a “top hat” plan (that is, an unfunded deferred compensation plan designed solely to benefit a select group of management or highly compensated employees) so as to minimize ERISA regulation; or

b. A Change of Control occurs and any resulting successor to the Company does not assume the Plan.

In such event, the Plan shall terminate as of the date of such Committee determination or Change of Control, in which case the Account of each Participant that has not incurred a Termination of Employment prior to such Change of Control shall be one hundred (100) percent vested immediately prior to such termination of the Plan.

If the Plan termination is due to a Change of Control that qualifies as a distributable event under Code Section 409A, then all Participants’ Accounts shall be distributed upon such Change of Control in accordance with Section 5 above as if the Participant had incurred a Termination of Employment on the date of such Change of Control.

For any other special Plan termination under this Section 8.3, no further credits shall be made under the Plan after the date of such Plan termination, and distribution of each Participant’s Account shall be made as of the earliest possible distributable event applicable thereafter under Section 5, except with respect to any Participant whose Account is assumed by or transferred to another top hat plan established or maintained by the Company or any successor or affiliate of the Company.

Notwithstanding the foregoing, any distributions upon a Plan termination hereunder shall be made only at such time and in such manner, and subject to such other conditions (if any are applicable), as will comply with Code Section 409A and regulations thereunder.

SECTION 9: CONFIDENTIALITY, NON-COMPETITION AND NON-SOLICIATION

9.1 As a condition of this Agreement, the Executive hereby covenants and agrees that he or she will abide by the terms of the separately executed Confidentiality, Non-Competition and Non-Solicitation Agreement (“Non-Competition Agreement”). If the Executive breaches the Non-Competition Agreement in any way, any and all benefits and awards due to the Executive under the terms of this Agreement shall be void and forfeited. Any benefits previously distributed to the Executive under this Agreement (“Prior Payments”) shall be subject to automatic recoupment, and the Executive shall immediately return Prior Payments to the Company.

SECTION 10: GENERAL PROVISIONS

10.1 Inalienability. In no event may either a Participant, a former Participant or his or her beneficiary, spouse or estate sell, transfer, anticipate, assign, hypothecate, or otherwise dispose of any right or interest under the Plan; and such rights and interests shall not at any time be subject to the claims of creditors nor be liable to attachment, execution or other

legal process. Accordingly, for example, a Participant’s interest in the Plan is not transferable pursuant to a domestic relations order.

10.2 Rights and Duties. Neither the Employer nor the Committee shall be subject to any liability or duty under the Plan except as expressly provided in the Plan, or for any action taken, omitted or suffered in good faith.

10.3 No Enlargement of Employment Rights. Neither the establishment or maintenance of the Plan, nor any action of the Employer or the Committee, shall be held or construed to confer upon any individual any right to be continued as an Employee nor, upon dismissal, any right or interest in any specific assets of the Employer other than as provided in the Plan. The Employer expressly reserves the right to discharge any Employee at any time.

10.4 Apportionment of Costs and Duties. All acts required of the Employer under the Plan may be performed by the Company for itself and its Subsidiaries, and the costs of the Plan may be equitably apportioned by the Committee among the Company and the other participating Subsidiaries. Whenever the Employer is permitted or required under the terms of the Plan to do or perform any act, matter or thing, it shall be done and performed by any officer or employee of the Employer who is thereunto duly authorized by the Board.

10.5 Applicable Law. The provisions of the Plan with the laws of the State of Maine, to the extent not preempted by federal law.

10.6 Severability. If any provision of the Plan is held invalid or unenforceable, its invalidity or unenforceability shall not affect any other provisions of the Plan, and in lieu of each provision which is held invalid or unenforceable, there shall be added as part of the Plan a provision that shall be as similar in terms to such invalid or unenforceable provision as may be possible and be valid, legal, and enforceable.

10.7 Captions. The captions contained in, and the table of contents prefixed to, the Plan are inserted only as a matter of convenience and for reference and in no way define, limit, enlarge or describe the scope or intent of the Plan, nor in any way shall affect the construction of any provision of the Plan.

10.8 Compliance with Code Section 409A. This Plan constitutes a so-called non-qualified deferred compensation plan as defined in Code Section 409A and is intended to comply with the requirements of Code Section 409A. Any interpretations or administrative action required under this Plan shall be made in a manner so as to continue the qualification of the Plan under Code Section 409A and the Treasury Regulations thereunder.

EXECUTION

IN WITNESS WHEREOF, this Plan, having been first duly adopted by the Board, is hereby executed below by a duly authorized officer of the Company on this DATE, to take effect as of January 30, 2018.

CAMDEN NATIONAL CORPORATION

Dated: January 30, 2018 By:     /s/ Gregory A. Dufour

President & CEO

SEEN AND AGREED TO:

_________________________________ ____________________________________

Executive Date

EX-21

Camden National Bank, a national banking organization organized under the laws of the United States of America.

Healthcare Professional Funding Corporation, a wholly-owned subsidiary of Camden National Bank

Property A, a wholly-owned subsidiary of Camden National Bank

Property P, a wholly-owned subsidiary of Camden National Bank

EX-23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement (Nos. 333-207544, 333-181726, 333-108214, 333-106403, 333-68598 and 333-95157) on Form S-8 of Camden National Corporation and Subsidiary of our reports dated March 9, 2018, relating to our audits of the consolidated financial statements and internal control over financial reporting, which appear in the Annual Report on Form 10-K of Camden National Corporation and Subsidiary for the year ended December 31, 2017.

/s/ RSM US LLP

RSM US LLP

New York, New York

March 9, 2018

EX-31.1

CERTIFICATION

I, Gregory A. Dufour, certify that:

I have reviewed this annual report on Form 10-K of Camden National Corporation;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 9, 2018	/s/ Gregory A. Dufour
	Gregory A. Dufour
	President and Chief Executive Officer

EX-31.2

CERTIFICATION

I, Deborah A. Jordan, certify that:

I have reviewed this annual report on Form 10-K of Camden National Corporation;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 9, 2018	/s/ Deborah A. Jordan
	Deborah A. Jordan
	Chief Operating Officer, Chief Financial Officer and Principal Financial & Accounting Officer

EX-32.1

Certification of Periodic Financial Report

Pursuant to 18 U.S.C. Section 1350

The undersigned officer of Camden National Corporation (the “Company”) hereby certifies that the Company’s annual report on Form 10-K for the period ended December 31, 2017 to which this certification is being furnished as an exhibit (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. This certification is provided pursuant to 18 U.S.C. Section 1350 and Item 601(b)(32) of Regulation S-K (“Item 601(b)(32)”) promulgated under the Securities Act of 1933, as amended (the “Securities Act”), and the Exchange Act. In accordance with clause (ii) of Item 601(b)(32), this certification (a) shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to liability of that section, and (b) shall not be deemed to be incorporated by reference into any filing under the Securities Act of the Exchange Act, except to the extent that the Company specifically incorporates it by reference.

Date: March 9, 2018	/s/ Gregory A. Dufour
	Gregory A. Dufour
	President and Chief Executive Officer

EX-32.2

Certification of Periodic Financial Report

Pursuant to 18 U.S.C. Section 1350

The undersigned officer of Camden National Corporation (the “Company”) hereby certifies that the Company’s annual report on Form 10-K for the period ended December 31, 2017 to which this certification is being furnished as an exhibit (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. This certification is provided pursuant to 18 U.S.C. Section 1350 and Item 601(b)(32) of Regulation S-K (“Item 601(b)(32)”) promulgated under the Securities Act of 1933, as amended (the “Securities Act”), and the Exchange Act. In accordance with clause (ii) of Item 601(b)(32), this certification (a) shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to liability of that section, and (b) shall not be deemed to be incorporated by reference into any filing under the Securities Act of the Exchange Act, except to the extent that the Company specifically incorporates it by reference.

Date: March 9, 2018	/s/ Deborah A. Jordan
	Deborah A. Jordan
	Chief Operating Officer, Chief Financial Officer and Principal Financial & Accounting Officer

XML

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Feb. 23, 2018	Jun. 30, 2017
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Trading Symbol	CAC
Entity Registrant Name	CAMDEN NATIONAL CORP
Entity Central Index Key	0000750686
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		15,536,923
Entity Public Float			$ 652,073,793
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No

XML

Consolidated Statements Of Condition - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 48,107	$ 52,168
Interest-bearing deposits in other banks	54,864	35,539
Total cash and cash equivalents	102,971	87,707
Securities
Available-for-sale securities, at fair value	789,899	779,867
Held-to-maturity securities, at amortized cost (fair value of $94,913 and $94,596, respectively)	94,073	94,609
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	23,670	23,203
Total investments	907,642	897,679
Loans held for sale, at fair value	8,103	14,836
Loans:	2,782,439	2,594,564
Less: allowance for loan losses	(24,171)	(23,116)
Net loans	2,758,268	2,571,448
Goodwill	94,697	94,697
Other intangible assets	4,955	6,764
Bank-owned life insurance	87,489	78,119
Premises and equipment, net	41,891	42,873
Deferred tax assets	22,776	39,263
Other assets	36,606	30,844
Total assets	4,065,398	3,864,230
Deposits
Demand	478,643	406,934
Interest checking	855,570	701,494
Savings and money market	985,508	979,263
Retail certificates of deposit	475,010	468,203
Brokered deposits	205,760	272,635
Total deposits	3,000,491	2,828,529
Short-term borrowings	541,867	530,129
Long-term borrowings	10,720	10,791
Subordinated Debt	58,911	58,755
Accrued interest and other liabilities	49,996	44,479
Total liabilities	3,661,985	3,472,683
Commitments and contingencies
Shareholders' Equity
Common stock, no par value: authorized 40,000,000 shares, issued and outstanding 15,524,704 and 15,476,379 on December 31, 2017 and 2016, respectively	156,904	156,041
Retained earnings	266,723	249,415
Accumulated other comprehensive income (loss)
Net unrealized losses on available-for-sale securities, net of tax	(10,300)	(6,085)
Net unrealized losses on cash flow hedging derivative instruments, net of tax	(5,926)	(5,694)
Net unrecognized losses on postretirement plans, net of tax	(3,988)	(2,130)
Total accumulated other comprehensive loss	(20,214)	(13,909)
Total shareholders’ equity	403,413	391,547
Total liabilities and shareholders’ equity	$ 4,065,398	$ 3,864,230

XML

Consolidated Statements Of Condition (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Common Stock, no par value (dollars per share)	$ 0	$ 0
Common stock, authorized	40,000,000	40,000,000
Common stock, issued	15,524,704	15,476,379
Common stock, outstanding	15,524,704	15,476,379

XML

Consolidated Statements Of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest Income
Interest and fees on loans	$ 114,563	$ 109,224	$ 81,221
Interest on U.S. government and sponsored enterprise obligations (taxable)	16,879	16,082	15,091
Interest on state and political subdivision obligations (nontaxable)	2,764	2,836	2,208
Interest on other investments	1,898	1,484	624
Total interest income	136,104	129,626	99,144
Interest Expense
Interest on deposits	11,811	8,633	6,511
Interest on borrowings	5,585	4,506	3,457
Interest on subordinated debentures	3,408	3,415	2,724
Total interest expense	20,804	16,554	12,692
Net interest income	115,300	113,072	86,452
Provision for credit losses	3,035	5,258	1,936
Net interest income after provision for credit losses	112,265	107,814	84,516
Non-Interest Income
Debit card income	8,079	7,578	5,277
Service charges on deposit accounts	7,529	7,210	6,423
Mortgage banking income, net	7,363	6,258	2,031
Income from fiduciary services	5,108	4,960	4,918
Bank-owned life insurance	2,370	2,594	1,680
Brokerage and insurance commissions	2,147	2,074	1,699
Other service charges and fees	2,029	1,962	1,573
Net gain on sale of securities	855	51	4
Other income	3,119	6,934	3,877
Total non-interest income	38,599	39,621	27,482
Non-Interest Expenses
Salaries and employee benefits	49,965	48,072	37,220
Furniture, equipment and data processing	9,894	9,557	8,057
Net occupancy costs	6,884	7,088	5,695
Consulting and professional fees	3,118	3,234	2,625
Other real estate owned and collection costs, net	971	3,128	2,491
Regulatory assessments	2,166	2,777	2,184
Debit card expense	2,755	2,584	1,936
Amortization of intangible assets	1,809	1,903	1,306
Merger and acquisition costs	0	866	10,415
Other expenses	10,948	10,687	9,210
Total non-interest expense	88,510	89,896	81,139
Income before income tax expense	62,354	57,539	30,859
Income Tax Expense	33,878	17,472	9,907
Net income	$ 28,476	$ 40,067	$ 20,952
Per Share Data
Basic earnings per share	$ 1.83	$ 2.59	$ 1.73
Diluted earnings per share	$ 1.82	$ 2.57	$ 1.73
Weighted average number of common shares outstanding	15,509,665	15,422,160	12,031,294
Diluted weighted average number of common shares outstanding	15,588,347	15,504,239	12,074,579

XML

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income		$ 28,476	$ 40,067	$ 20,952
Net change in unrealized losses on available-for-sale securities:
Net change in unrealized losses on available-for-sale securities, net of tax of $1,017, $1,212, and $1,873, respectively		(1,888)	(2,251)	(3,479)
Net reclassification adjustment for gains included in net income, net of tax of $18, $1, and $158, respectively	[1]	(556)	(33)	(3)
Net change in unrealized losses on available-for-sale securities, net of tax		(2,444)	(2,284)	(3,482)
Net change in unrealized gains (losses) on cash flow hedging derivatives:
Net change in unrealized losses on cash flow hedging derivatives, net of tax of $134, $343, and $825, respectively		(248)	(637)	(1,533)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, net of tax of ($709), ($593), and ($600), respectively	[2]	1,035	1,317	1,102
Net change in unrealized gains (losses) on cash flow hedging derivatives, net of tax		787	680	(431)
Postretirement plans:
Net actuarial loss, net of tax of $723, $127, and $21, respectively		(1,342)	(235)	(39)
Reclassification of amortization of net unrecognized actuarial loss and of prior service cost included in net periodic cost, net of tax of ($83), ($84), and ($51), respectively	[3]	170	152	155
Net gain (loss) on postretirement plans, net of tax		(1,172)	(83)	116
Other comprehensive loss		(2,829)	(1,687)	(3,797)
Comprehensive income		$ 25,647	$ 38,380	$ 17,155

[1] (1) Reclassified into the consolidated statements of income within net gain on sale of securities.

[2] (2)Reclassified into the consolidated statements of income within interest on borrowings and subordinated debentures.

[3] (3) Reclassified into the consolidated statements of income within salaries and employee benefits.

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Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net change in unrealized gain (loss) on available-for-sale securities, tax effect	$ 1,017	$ 1,212	$ 1,873
Net reclassification adjustment for gains included in net income, tax effect	299	18	1
Net change in unrealized gains (losses) on cash flow hedging derivatives, tax effect	134	343	825
Net reclassification adjustments for effective portion of cash flow hedges included in interest expense, tax effect	(557)	(709)	(593)
Net actuarial (loss) gain, tax effect	723	127	21
Reclassification of amortization of net unrecognized actuarial loss and of prior service cost included in net periodic cost, tax effect	$ (92)	$ (83)	$ (84)

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Consolidated Statements Of Changes In Shareholders' Equity - USD ($)		Total	Common Stock		Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance (in shares) at Dec. 31, 2014			11,139,333
Beginning Balance at Dec. 31, 2014		$ 245,109,000	$ 41,555,000		$ 211,979,000	$ (8,425,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		20,952,000			20,952,000
Other comprehensive loss, net of tax		(3,797,000)				(3,797,000)
Stock-based compensation expense		836,000	$ 836,000
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings and tax benefit (in shares)			66,741
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings		753,000	$ 753,000
Common stock repurchased (in shares)			0
Equity issuance costs incurred for the SBM Financial, Inc. acquisition		(612,000)	$ (612,000)
Cash dividends declared ( $0.74, $0.80 and $0.83 per share in 2016, 2015, and 2014, respectively)	[1]	(10,602,000)			(10,602,000)
Equity issuance costs		(612,000)
SBM acquisition common stock issuance (in shares)			4,124,643
SBM acquisition common stock issuance		108,561,000	$ 108,561,000
SBM acquisition non-qualified stock option awards		1,990,000	$ 1,990,000
Ending Balance (in shares) at Dec. 31, 2015			15,330,717
Ending Balance at Dec. 31, 2015		363,190,000	$ 153,083,000		222,329,000	(12,222,000)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income			$ 72,000	[1]	(72,000)
Stock Issued During Period, Shares, Stock Splits			(173)
Stockholders' Equity Note, Stock Split, Reduction of Capital		(5,000)	$ (5,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		40,067,000			40,067,000
Other comprehensive loss, net of tax		(1,687,000)				(1,687,000)
Stock-based compensation expense		1,997,000	$ 1,997,000
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings and tax benefit (in shares)			145,835
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings		894,000	$ 894,000
Cash dividends declared ( $0.74, $0.80 and $0.83 per share in 2016, 2015, and 2014, respectively)	[1]	(12,909,000)			(12,909,000)
Equity issuance costs		0
Ending Balance (in shares) at Dec. 31, 2016			15,476,379.000
Ending Balance at Dec. 31, 2016		391,547,000	$ 156,041,000		249,415,000	(13,909,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		28,476,000			28,476,000
Reclassification from AOCI, Current Period, Tax	[2]				3,476,000	(3,476,000)
Other comprehensive loss, net of tax		(2,829,000)				(2,829,000)
Stock-based compensation expense		1,469,000	$ 1,469,000
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings and tax benefit (in shares)			48,325
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings		(606,000)	$ (606,000)
Cash dividends declared ( $0.74, $0.80 and $0.83 per share in 2016, 2015, and 2014, respectively)	[1]	(14,644,000)			(14,644,000)
Equity issuance costs		0
Ending Balance (in shares) at Dec. 31, 2017			15,524,704.000
Ending Balance at Dec. 31, 2017		$ 403,413,000	$ 156,904,000		$ 266,723,000	$ (20,214,000)

[1] In the second quarter of 2016, the Company adopted ASU 2016-09, effective January 1, 2016. The Company made a policy election to not estimate the forfeiture rate in the accounting for share-based compensation on its unvested share-based awards. The change in policy was accounted for on a modified-retrospective basis and represents the cumulative effect adjustment to shareholders' equity.

[2] In December of 2017, the Company early adopted ASU 2018-02, as a result, the Company made a policy election to release income tax effects, as a result of the Tax Act, from AOCI to retained earnings.

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Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Stockholders' Equity [Abstract]
Cash dividends declared, per share	$ 0.94	$ 0.83	$ 0.80

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Consolidated Statements Of Cash Flows	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Operating Activities
Net income	$ 28,476,000	$ 40,067,000	$ 20,952,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	3,035,000	5,258,000	1,936,000
Depreciation and amortization expense	3,761,000	4,426,000	3,614,000
Purchase accounting accretion, net	(2,834,000)	(5,048,000)	(367,000)
Investment securities amortization and accretion, net	3,122,000	3,135,000	2,244,000
Stock-based compensation expense	1,469,000	1,997,000	836,000
Amortization of intangible assets	1,809,000	1,903,000	1,306,000
Net gains on sale of investment securities	(855,000)	(51,000)	(4,000)
Net increase in other real estate owned valuation allowance and (gain) loss on disposition	(15,000)	35,000	362,000
Originations of mortgage loans held for sale	(211,568,000)	(236,450,000)	(72,032,000)
Proceeds from the sale of mortgage loans	224,883,000	238,351,000	62,485,000
Gain on sale of mortgage loans, net of origination costs	(6,256,000)	(6,201,000)	(1,278,000)
Cost of fixed assets disposals associated with the SBM Financial, Inc. acquisition	0	0	1,130,000
Proceeds from bank-owned life insurance death benefits	0	(507,000)	0
Proceeds from bank-owned life insurance death benefits	0	1,092,000	0
(Increase) decrease in other assets	12,060,000	11,836,000	(7,062,000)
Increase (decrease) in other liabilities	1,247,000	(1,333,000)	1,796,000
Net cash provided by operating activities	58,334,000	58,510,000	15,918,000
Investing Activities
Cash received in the SBM Financial, Inc. acquisition, net of cash paid	0	0	59,917,000
Proceeds from sales and maturities of available-for-sale securities	154,973,000	184,564,000	156,434,000
Purchase of available-for-sale securities	(170,495,000)	(220,169,000)	(111,170,000)
Purchase of securities held-to-maturity	0	(10,986,000)	(64,355,000)
Net increase in loans	(187,740,000)	(103,699,000)	(94,811,000)
Proceeds from sale of premises and equipment	137,000	90,000	0
Purchase of premises and equipment	(2,844,000)	(1,671,000)	(3,189,000)
Purchase of Federal Home Loan Bank and Federal Reserve Bank stock	(12,290,000)	(7,342,000)	(1,594,000)
Proceeds from sale of other real estate owned	11,823,000	5,652,000	471,000
Proceeds from sale of other real estate owned	808,000	730,000	2,825,000
Recoveries of previously charged-off loans	497,000	486,000	728,000
Purchase of bank-owned life insurance	(7,000,000)	(16,700,000)	0
Net cash used in investing activities	(212,131,000)	(169,045,000)	(54,744,000)
Financing Activities
Net increase in deposits	172,291,000	103,027,000	71,825,000
Net proceeds from (repayments of) borrowings less than 90 days	36,699,000	77,227,000	(18,105,000)
Repayments on Federal Home Loan Bank long-term advances	(20,000,000)	(25,000,000)	(11,039,000)
Proceeds from Federal Home Loan Bank long-term advances	0	0	10,000,000
Repayments of Other Debt	(5,000,000)	(25,000,000)	0
Issuance of subordinated debt, net of costs	0	0	14,464,000
Equity issuance costs	0	0	(612,000)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings	606,000	(894,000)	(753,000)
Cash dividends paid on common stock and cash in lieu for fractional shares paid due to stock split	(14,323,000)	(12,394,000)	(9,785,000)
Net cash provided by financing activities	169,061,000	118,754,000	57,501,000
Net increase in cash and cash equivalents	15,264,000	8,219,000	18,675,000
Cash and cash equivalents at beginning of year	87,707,000	79,488,000	60,813,000
Cash and cash equivalents at end of year	102,971,000	87,707,000	79,488,000
Supplemental information
Interest paid	20,774,000	16,661,000	12,588,000
Income taxes paid	16,841,000	10,647,000	12,205,000
Transfer of loans and premises to other real estate owned	0	383,000	2,175,000
Measurement-period adjustments	0	960,000	0
Assets acquired in the acquisition of SBM Financial, Inc., excluding net cash received (not adjusted for measurement-period adjustments)	0	0	729,283,000
Liabilities assumed in the acquisition of SBM Financial Inc. (not adjusted for measurement-period adjustments)	0	0	729,500,000
Common stock and stock options issued in connection with the SBM Financial, Inc. acquisition	$ 0	$ 0	$ 110,551,000

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Business and Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Business and Summary of Significant Accounting Policies

Business and Summary of Significant Accounting Policies

Acronyms and Abbreviations.The acronyms and abbreviations identified below are used in the notes to the consolidated financial statements. The following is provided to aid the reader and provide a reference page when reviewing these notes to the consolidated financial statements.

AFS:	Available-for-sale	HPFC:	Healthcare Professional Funding Corporation, a wholly-owned subsidiary of Camden National Bank
ALCO:	Asset/Liability Committee	HTM:	Held-to-maturity
ALL:	Allowance for loan losses	IRS:	Internal Revenue Service
AOCI:	Accumulated other comprehensive income (loss)	LIBOR:	London Interbank Offered Rate
ASC:	Accounting Standards Codification	LTIP:	Long-Term Performance Share Plan
ASU:	Accounting Standards Update	Management ALCO:	Management Asset/Liability Committee
Bank:	Camden National Bank, a wholly-owned subsidiary of Camden National Corporation	MBS:	Mortgage-backed security
BOLI:	Bank-owned life insurance	MSPP:	Management Stock Purchase Plan
Board ALCO:	Board of Directors' Asset/Liability Committee	N.M.:	Not meaningful
CCTA:	Camden Capital Trust A, an unconsolidated entity formed by Camden National Corporation	OCC:	Office of the Comptroller of the Currency
CDs:	Certificate of deposits	OCI:	Other comprehensive income (loss)
Company:	Camden National Corporation	OREO:	Other real estate owned
CMO:	Collateralized mortgage obligation	OTTI:	Other-than-temporary impairment
DCRP:	Defined Contribution Retirement Plan	SBM:	SBM Financial, Inc., the parent company of The Bank of Maine
EPS:	Earnings per share	SERP:	Supplemental executive retirement plans
FASB:	Financial Accounting Standards Board	Tax Act:	Tax Cuts and Jobs Act of 2017, enacted on December 22, 2017
FDIC:	Federal Deposit Insurance Corporation	TDR:	Troubled-debt restructured loan
FHLB:	Federal Home Loan Bank	UBCT:	Union Bankshares Capital Trust I, an unconsolidated entity formed by Union Bankshares Company that was subsequently acquired by Camden National Corporation
FHLBB:	Federal Home Loan Bank of Boston	U.S.:	United States of America
FRB:	Federal Reserve System Board of Governors	2003 Plan:	2003 Stock Option and Incentive Plan
FRBB:	Federal Reserve Bank of Boston	2012 Plan:	2012 Equity and Incentive Plan
GAAP:	Generally accepted accounting principles in the United States

General Business.Camden National Corporation, a Maine corporation (the "Company"), is the bank holding company for Camden National Bank (the "Bank") and is headquartered in Camden, Maine. The primary business of the Company is to attract deposits from, and to extend loans to, consumer, institutional, municipal, non-profit and commercial customers. The Company, through the Bank, offers commercial and consumer banking products and services, and through Camden Financial Consultants, a division of the Bank, and Camden National Wealth Management, a department of the Bank, offers brokerage and insurance services as well as investment management and fiduciary services. The Bank's deposits are insured by the FDIC, subject to regulatory limits.

Principles of Consolidation.  The accompanying consolidated financial statements include the accounts of the Company and the Bank (which includes the consolidated accounts of HPFC, Property A, Inc. and Property P, Inc.). All intercompany accounts and transactions have been eliminated in consolidation. Assets held by the Bank in a fiduciary capacity, through Camden National Wealth Management, are not assets of the Company and, therefore, are not included in the consolidated statements of condition. The Company also owns 100% of the common stock of CCTA and UBCT. These entities are unconsolidated subsidiaries of the Company.

Reclassifications.  Certain reclassifications have been made to prior year amounts to conform to the current year's presentation.

Use of Estimates. The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could vary from these estimates. Several estimates are particularly critical and are susceptible to significant near-term change, including the ALL, the accounting for business combinations including subsequent impairment analyses for goodwill and other intangible assets, accounting for income taxes, postretirement benefits and asset impairment judgments, including OTTI of investment securities.

Subsequent Events. The Company has evaluated events and transactions subsequent to December 31, 2017 for potential recognition or disclosure as required by GAAP.

Significant Concentration of Credit Risk.The Bank grants loans primarily to customers in Maine. Although the Bank has a diversified loan portfolio, a large portion of the Bank's loans are secured by commercial or residential real estate located in Maine and is subject to volatility within Maine's real estate market. Furthermore, the debtors' ability to honor their contracts is highly dependent upon other economic factors throughout Maine. The Bank does not generally engage in non-recourse lending and typically will require the principals of any commercial borrower to obligate themselves personally on the loan.

Cash and Cash Equivalents. For the purposes of reporting cash flows, cash and cash equivalents consist of cash on hand and amounts due from banks. The Bank is required by the FRB to maintain cash reserves equal to a percentage of deposits. The Company maintains the reserve balances in cash on hand or at the FRB.

Investment Securities. Investment securities are classified at the time of purchase as AFS, HTM, or trading. The classification of investment securities are constantly re-evaluated for consistency with corporate goals and objectives.

Trading securities are carried at fair value on the consolidated statements of condition with subsequent changes to fair value recorded in earnings. At December 31, 2017 and 2016, the Company did not have any investment securities classified as trading securities on its consolidated statements of condition.

Debt securities for which the Company has the positive intent and ability to hold to maturity are classified as HTM and recorded at amortized cost on the consolidated statements of condition. At December 31, 2017 and 2016, the Company had investment securities of $94.1 million and $94.6 million, respectively, classified as HTM and carried at amortized cost on its consolidated statements of condition.

Investment securities that are not classified as HTM or trading securities are classified as AFS and are carried at fair value on the Company's consolidated statements of condition with subsequent changes to fair value recorded within AOCI, net of tax. At December 31, 2017 and 2016, the Company had investment securities of $789.9 million and $779.9 million, respectively, classified as AFS and carried at fair value on its consolidated statements of condition.

Purchase premiums and discounts are recognized in interest income on the consolidated statements of income using the interest method over the period to maturity (or issuer call option date, if earlier) and are recorded on the trade date.

Upon sale of an investment security designated as AFS, the unrealized gain or loss recorded within AOCI, net of tax, is reversed. Gains and losses on the sale of investment securities are recognized within non-interest income on the consolidated statements of income and are recorded on the trade date using the specific identification method.

Management conducts a quarterly review and evaluation of its debt and equity securities portfolio to determine if the decline in fair value of any security appears to be other-than-temporary. The factors considered by management in its review include, but are not limited to: the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, the credit ratings of the security or issuer, whether the decline in fair value appears to be issuer specific or, alternatively, a reflection of general market or industry conditions, and the Company’s intent and ability to hold the security for a period of time sufficient to allow for a recovery in fair value.

Should the Company determine that the decline in the fair value of an equity security was other-than-temporary, the Company recognizes the impairment on the equity security within non-interest income on the consolidated statements of income when identified. For debt securities where the Company does not intend to sell the security and it is not more-likely-than-not that the Company will be required to sell the security before recovery of its amortized cost basis, the other-than-temporary decline in the fair value of the debt security related to: (i) credit loss is recognized in non-interest income on the consolidated statements of income; and (ii) other factors is recognized in AOCI, net of tax. For debt securities where the Company intends to sell the security or more-likely-than-not will be required to sell the security before recovery of its amortized cost, the Company recognizes the OTTI equal to the entire difference between the security’s cost basis and its fair value within non-interest income on the consolidated statements of income.

The Bank is a member of the FHLBB and FRBB, and as a member, the Bank is required to hold a certain amount of FHLBB and FRB common stock. This stock is a non-marketable equity security and is reported at cost. The Company evaluates its FHLBB and FRB common stock for impairment based on the ultimate recoverability of the par value rather than by recognizing temporary declines in value.

Loans Held for Sale. The Company has elected the fair value option for loans classified as held for sale on the consolidated statements of condition. Designation of loans as held for sale is determined based on the Company's intent and is, typically, completed as the loans are underwritten. The fair value for loans held for sale is determined using quoted secondary market prices or executed sales agreements. Management constantly evaluates its loan portfolio, in conjunction with asset/liability management practices, and will opt to sell certain loans, typically new 30-year residential mortgages, to manage the Company's interest rate exposure and for other business purposes, including generating fee income through mortgage sale gains. At December 31, 2017 and 2016, the fair value of loans designated as held for sale on its consolidated statements of condition were $8.1 million and $14.8 million, respectively.

Originated Loans and Acquired Loans. Loans are reported at amortized cost, or fair value in the case of acquired loans, adjusted for any partial charge-offs and net of any deferred loan fees or costs. For originated loans, interest income is accrued based upon the daily principal amount outstanding except for loans on non-accrual status. For acquired loans, interest income is also accrued based upon the daily principal amount outstanding and is then further adjusted by the accretion of any discount or amortization of any premium associated with the loan.

For originated loans, loan fees and certain direct origination costs are deferred and amortized into interest income over the contractual term of the loan using the level-yield method. When a loan is paid off, the unamortized portion is recognized in interest income.

A loan is classified as non-accrual generally when it becomes 90 days past due as to interest or principal payments, or sooner if management considers such action to be prudent. All previously accrued but unpaid interest on non-accrual loans is reversed from interest income in the period in which the loan is considered delinquent and the amortization of any unamortized net deferred origination loan fees/costs stops. Interest payments received on non-accrual loans, including impaired loans, are applied as a reduction of principal. A loan remains on non-accrual status until all principal and interest amounts contractually due are brought current and future payments are reasonably assured. Should a loan transition from non-accrual status back to accrual status, the unrecognized interest earned during the period the loan was on non-accrual status and unamortized deferred origination fees and costs are recognized over the remaining contractual life of the loan using the level-yield method.

ALL. The ALL is established through provisions for loan losses charged to income. Losses on loans, including impaired loans, are charged to the ALL when all or a portion of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the ALL when realized.

In determining the appropriate level of ALL, the Company uses a methodology to systematically measure the amount of estimated loan loss exposure inherent in the loan portfolio. The methodology includes three elements: (1) identification of loss allocations for certain specific loans, (2) loss allocation factors for certain loan types based on credit risk and loss experience, and (3) general loss allocations for other qualitative and environmental factors.

The allocations for specific loans is determined based on loans that have a principal balance of $500,000 or more that are classified as substandard or doubtful and are on non-accrual status. Effective January 1, 2017, the Company's internal policy for assessing specific loans for impairment was increased from $250,000 to $500,000. The qualitative factors for assessing a loan individually for impairment in accordance with the Company's internal policy were unchanged, and continue to require the loan to be classified as substandard or doubtful and on non-accrual status. For such loans that are also classified as impaired, an allowance is established when the discounted expected future cash flows (or collateral value or observable market price) of the impaired loan is lower than the recorded investment of that loan. Loans that do not meet the above criteria are separated into risk pools by portfolio segment and risk ratings. The Company then evaluates each risk pool collectively for impairment through loss allocation factors.

The Company uses a risk rating system for certain loan segments to determine the credit quality of these loan pools and applies the related loss allocation factors. In assessing the risk rating of a particular loan, the Company considers, among other factors, the obligor’s debt capacity, financial condition, the level of the obligor’s earnings, the amount and sources of repayment, the performance with respect to loan terms, the adequacy of collateral, the level and nature of contingent liabilities, management strength, and the industry in which the obligor operates. These factors are based on an evaluation of historical information, as well as subjective assessment and interpretation of current conditions. Emphasizing one factor over another, or considering additional factors that may be relevant in determining the risk rating of a particular loan but which are not currently an explicit part of the Company's methodology, could impact the risk rating assigned to that loan.

The Company at least annually, and more frequently as deemed prudent by management, reassesses and revises the loss allocation factors used in the assignment of loss exposure to appropriately reflect the analysis of loss experience. Portfolios of more homogeneous populations of loans including home equity and consumer loans are analyzed as groups taking into account delinquency rates and other economic conditions which may affect the ability of borrowers to meet debt service requirements, including interest rates and energy costs. The Company also considers regulatory guidance, historical loss ranges, portfolio composition, and other changes in the portfolio. An additional allocation is determined based on a judgmental process whereby management considers qualitative and quantitative assessments of other environmental factors.

Since the methodology is based upon historical experience and trends, as well as management’s judgment, factors may arise that result in different estimations. Significant factors that could give rise to changes in these estimates may include, but are not limited to, changes in economic conditions in the Company’s market areas, concentration of risk, declines in local property values, and regulatory guidance.

Loans past due 30 days or more are considered delinquent. In general, secured loans that are delinquent for 90 consecutive days are placed on non-accrual status, and are subject to impairment and/or loss assessment in accordance with established internal policy. In general, unsecured loans that are delinquent for 90 consecutive days are charged off.

In cases where a borrower experiences financial difficulties and the Company makes certain concessionary modifications to contractual terms, the loan is classified as a TDR. Modifications may include adjustments to interest rates, extensions of maturity, and other actions intended to minimize economic loss and avoid foreclosure or repossession of collateral. An allowance is established on a loan classified as a TDR if the present value of expected future cash flows (or, alternatively, the observable market price of the loan or the fair value of the collateral if the loan is collateral-dependent) is less than the recorded investment of the loan. Non-accrual loans that are restructured as TDRs remain on non-accrual status for a period of at least six months to demonstrate that the borrower can meet the restructured terms. If the restructured loan is on accrual status prior to being modified, it is reviewed to determine if the modified loan should remain on accrual status. If the borrower’s ability to meet the revised payment schedule is not reasonably assured, the loan is classified as a non-accrual loan. Loans classified as TDRs remain classified as such for the life of the loan, except in limited circumstances, when it is determined that the borrower is performing under the modified terms and the restructuring agreement specified an interest rate greater than or equal to an acceptable market rate for a comparable new loan at the time of the restructuring.

Goodwill and Core Deposit Intangible Assets. Goodwill represents the excess cost of an acquisition over the fair value of the net assets acquired. Goodwill is not subject to amortization but rather is evaluated at least annually for impairment, or as events and circumstances dictate, at the reporting unit level. The Company's two reporting unit levels are (i) banking and (ii) financial services. The banking reporting unit is representative of the Company's core banking business line, while the financial services reporting unit is representative of the Company's wealth management and trust services business line. Any impairment is charged to non-interest expense on the consolidated statements of income.

Goodwill is evaluated for impairment annually as of November 30^th, or more frequently should external and/or internal factors warrant such. The Company may utilize a qualitative analysis (commonly referred to as "step zero") and/or a quantitative analysis to evaluate its reporting units' goodwill for impairment. The Company may utilize the qualitative analysis for an individual reporting unit or for both reporting units any given year. Furthermore, the Company has the option to by-pass the qualitative analysis for any given year and perform the quantitative analysis.

Using a qualitative analysis to assess a reporting unit's goodwill for impairment, the Company will consider various factors to determine if it is more-likely-than-not that a reporting unit's carrying value exceeds its fair value. These factors include, but are not limited to, the overall macro-economic environment; industry economic and regulatory environment; and company specific factors, including, but not limited to, performance, Company common stock share price, competition and/or significant changes in senior management. Should the Company determine it is more-likely-than-not that the carrying value of a reporting unit exceeds its fair value, then the Company would perform then perform the next step of the goodwill impairment test, which is a quantitative analysis. If the Company were to determine it is not more-likely-than-not that the carrying value of a reporting unit exceeds its fair value, the Company would have completed its goodwill impairment evaluation and concluded the reporting unit's goodwill was not impaired.

After performing the qualitative analysis and determining it's more-likely-than-not that the carrying value of a reporting unit exceeds its fair value or if the Company by-passed the qualitative analysis, it would perform a quantitative analysis to determine if the carrying value of a reporting unit exceeds its fair value. The Company may use various valuation techniques such as a discounted cash flow model, a comparative market transaction multiple approach and/or other valuation methods, to determine the reporting unit's fair value. If the fair value of the reporting unit is greater than its carrying value, then the reporting unit is not deemed to be impaired and no further assessment is required. However, if the fair value of the reporting unit is less than its carrying value, the Company would then be required to fair value the tangible and identifiable intangible assets, and liabilities of the reporting unit, to derive an implied fair value of goodwill for the reporting unit. If the implied fair value of goodwill for the reporting unit is greater than its carrying value, then the reporting unit’s goodwill is not impaired. However, if the reporting unit’s implied fair value of goodwill is less than its carrying value, an impairment charge is then recorded to carry goodwill at its calculated implied fair value.

The Company completed its annual goodwill impairment testing as of November 30, 2017, 2016 and 2015 for each reporting unit and goodwill was not impaired.

Core deposit intangible assets represents the estimated value of acquired customer relationships and is amortized on a straight-line basis over the estimated life of those relationships (5 to 10 years from the acquisition dates). Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If necessary, management will test the core deposit intangibles for impairment by comparing its carrying value to the expected undiscounted cash flows of the assets. If the undiscounted cash flows of the intangible assets exceed its carrying value then the intangible assets are deemed to be fully recoverable and not impaired. However, if the undiscounted cash flows of the intangible assets are less than its carrying value then management must compare the fair value of the intangible assets to its carrying value. If the fair value of the intangible assets exceeds its carrying value then the intangible assets are not impaired. If the fair value of the intangible assets is less than its carrying value then an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. For the year ended December 31, 2017, 2016 or 2015, there were no events or changes in circumstances that indicated the carrying amount may not be recoverable.

BOLI. BOLI represents the cash surrender value of life insurance policies on the lives of certain active and retired employees where the Company is the beneficiary and is recorded as an asset on the Company's consolidated statements of condition. Increases in the cash surrender values of the policies, as well as death benefits received, net of any cash surrender value, are recorded in non-interest income on the consolidated statements of income, and are not subject to income taxes. The Company reviews the financial strength of the insurance carriers prior to the purchase of life insurance policies and no less than annually thereafter. A life insurance policy with any individual carrier is limited to 15% of Tier I capital (as defined for regulatory purposes) and the total cash surrender value of life insurance policies is limited to 25% of Tier I capital.

Premises and Equipment. Premises and equipment are stated at cost less accumulated depreciation. Acquired premises and equipment (through the acquisition of a company or branch acquisition) are stated at their estimated fair values as of the acquisition date less accumulated depreciation that occurred subsequent to the acquisition date. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the related assets. Leasehold improvements are amortized over the lesser of the term of the respective lease or the estimated life of the improvement. Land is carried at cost.

Software costs are stated at cost less accumulated depreciation within other assets on the consolidated statements of condition. Amortization expense is calculated using the straight-line method over the estimated useful lives of the related assets.

OREO. OREO properties acquired through foreclosure or deed-in-lieu of foreclosure are recorded initially at estimated fair value less estimated costs to sell. Any write-down of the recorded investment in the related loan is charged to the ALL upon transfer to OREO. Upon acquisition of a property, a current appraisal is used or an internal valuation is prepared to substantiate fair value of the property. Any subsequent declines in the fair value of a property are recorded as a valuation allowance on the asset. Any subsequent increases in the fair value of a property are recorded as reductions of the valuation allowance, but not below zero. Upon a sale of an OREO property, any excess of the carrying value over the sale proceeds is recognized as a loss on sale. Any excess of sale proceeds over the carrying value of the OREO property is first applied as a recovery to the valuation allowance, if any, with the remainder being recognized as a gain on sale. Operating expenses, including legal and other direct expenses, and changes in the valuation allowance relating to foreclosed assets are included in other non-interest expense on the consolidated statements of income.

Mortgage Banking. Residential real estate mortgages are originated by the Company both for its portfolio and for sale into the secondary market. The transfer of these financial assets is accounted for as a sale when control over the asset has been surrendered. Control is deemed to be surrendered when (i) the asset has been isolated from the Company, (ii) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred asset, and (iii) the Company does not maintain effective control over the transferred asset through an agreement to repurchase them before their maturity. The Company records the gain on sale of the financial asset within mortgage banking income, net on its consolidated statements of income, net of direct and indirect costs incurred to originate the loan.

Servicing assets are recognized as separate assets when servicing rights are acquired through the sale of residential mortgage loans with servicing rights retained. Capitalized servicing rights, which are reported in other assets on the consolidated statements of condition, are initially recorded at fair value and are amortized in proportion to, and over the period of, the estimated future servicing of the underlying mortgages (typically, the contractual life of the mortgage). The amortization of mortgage servicing rights is recorded as a reduction of loan servicing fee income within non-interest income on the consolidated statements of income.

Servicing assets are evaluated for impairment quarterly based upon the fair value of the rights as compared to amortized cost. Impairment is determined by stratifying rights by predominant characteristics, such as interest rates and terms. Fair value is determined using prices for similar assets with similar characteristics, when available, or based upon discounted cash flows using market-based assumptions. Impairment of the servicing assets is recognized through a valuation allowance to the extent that fair value is less than the capitalized amount. If it is later determined that all or a portion of the impairment no longer exists, a reduction of the allowance may be recorded increasing income, but not below zero.

Servicing fee income is recorded for fees earned for servicing loans for investors. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income within non-interest income on the consolidated statements of income when earned.

Short-Term and Long-Term Borrowings. Short-term borrowings consist of borrowings maturing within one year of the consolidated statement of condition date, while long-term borrowings consist of borrowings maturing in one or more years. The Company's borrowings include retail and wholesale repurchase agreements, FHLBB overnight and short-term borrowings, federal funds purchased, a capital lease, and line of credit advances. The Company is required to post collateral for certain borrowings, for which it, generally, posts loans and/or investment securities as collateral.

Income Taxes. Income taxes are accounted for using the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax implications attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. If current information suggests that it is not more likely than not that the Company will be able to realize the deferred tax assets, a valuation allowance is established. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

The Company assesses quarterly whether or not a valuation allowance on its deferred tax assets is necessary. If it is more likely than not that the Company will not be able to realize the benefit of the deferred tax assets then a valuation allowance is established on the deferred tax asset not expected to be realized. At December 31, 2017 and 2016, the Company did not carry a valuation allowance on its deferred tax assets.

Effective January 1, 2016, the Company accounted for its windfall tax benefits and shortfalls, which are generated upon exercise of a non-qualified stock option or a disqualifying incentive stock option, within income tax expense on the consolidated statements of income as a discrete period item in the quarter generated.

EPS. Basic EPS excludes dilution and is computed by dividing net income applicable to common stock by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if certain securities or other contracts to issue common stock (such as stock options) were exercised or converted into additional common shares that would then share in the earnings of the Company. Diluted EPS is computed by dividing net income applicable to common stock by the weighted-average number of common shares outstanding for the period, plus an incremental number of common-equivalent shares computed using the treasury stock method.

Unvested share-based payment awards which include the right to receive non-forfeitable dividends are considered to participate with common stock in undistributed earnings for purposes of computing EPS. Restricted share grants and management stock purchase grants are considered participating securities for this purpose. Accordingly, the Company is required to calculate basic and diluted EPS using the two-class method. The calculation of EPS using the two-class method (i) excludes any dividends paid or owed on participating securities and any undistributed earnings considered to be attributable to participating securities from the numerator and (ii) excludes the dilutive impact of the participating securities from the denominator.

Effective September 30, 2016, the Company completed a three-for-two split of its common stock for shareholders of record as of September 15, 2016. As a result, the Company has adjusted its weighted-average shares outstanding, and basic and diluted EPS for the year ended December 31, 2015 as presented within Note 14 of the consolidated financial statements to account for the stock split. Refer to Note 13 of the consolidated financial statements for further details of the three-for-two stock split.

Postretirement Plans. The Company sponsors various retirement plans for current and former employees, including a SERP for certain officers of the Company and a postretirement health care and life insurance plan to certain eligible retired employees. The SERP and postretirement benefit plans are unfunded and have no plan assets, and the Company has recorded a liability on its consolidated statements of condition.

For the SERP, benefit obligations are estimated using the projected unit credit method. Under this method, each participant's benefits are attributed to years of service, taking into consideration future salary increases and the SERP's benefit allocation formula. Thus, the estimated total pension to which each participant is expected to become entitled to at retirement is broken down into units, each associated with a year of past or future credited service. For the SERP, an individual's estimated attributed benefit for valuation purposes related to a particular separation date is the benefit described under the SERP based on credited service as of the measurement date, but determined using the projected salary that would be used in the calculation estimate of the benefit on the expected separation date.

The Company has obligations with various active and retired employees related to certain postretirement benefits. The obligations are based on the employee's date of hire and years of service through retirement, with the associated cost recognized over the requisite service period. Under the plan, the postretirement benefits the amount the Company will pay for any given year for an individual is capped. Furthermore, the Company's obligation exists until the participant qualifies for Medicare. The accrual methodology results in an accrued amount at the full eligibility date equal to the then present value of all of the future benefits expected to be paid.

Net periodic benefits cost (credit) includes service costs and interest costs based on the assumed discount rate, amortization of prior service costs due to plan amendments and/or amortization of actuarial gains or losses. As prior service costs and actuarial gains or losses are amortized, they are reclassified from AOCI on the consolidated statements of condition into salaries and employee benefits on the consolidated statements of income. The amortization of actuarial gains and losses is determined using the 10% corridor minimum amortization approach and is taken over the average remaining future working lifetime of the plan participants.

Stock-Based Compensation. The fair value of restricted stock awards, restricted stock units and stock options is determined on the grant date. For restricted stock awards and units, compensation is recognized ratably over the requisite service period equal to the fair value of the award. For stock option awards, the fair value is determined using the Black-Scholes option-pricing model. Compensation expense for stock option awards is recognized ratably over the requisite service period equal to the fair value of the award. For performance-based share awards, the Company estimates the degree to which performance conditions will be met to determine the number of shares that will vest and the related compensation expense. Compensation expense is adjusted in the period such estimates change.

The Company does not assume an estimated forfeiture rate on its nonvested share-based awards in its reporting of share-based compensation expense. Should a share-based award be forfeited, the Company would reverse all associated compensation expense previously recorded on the nonvested shares.

Off-Balance Sheet Credit Related Financial Instruments. In the ordinary course of business, the Company enters into commitments to extend credit, including commercial letters of credit and standby letters of credit. Such financial instruments are recorded as loans when they are funded.

Derivative Financial Instruments Designated as Hedges. The Company recognizes all derivatives in the consolidated statements of condition at fair value. On the date the Company enters into the derivative contract, the Company designates the derivative as a hedge of either a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”), a hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (“fair value hedge”), or a held for trading instrument (“trading instrument”). The Company formally documents relationships between hedging instruments and hedged items, as well as its risk management objectives and strategy for undertaking various hedge transactions. The Company also assesses, both at the hedge’s inception and on an ongoing basis, whether the derivatives that are used in hedging transactions are effective in offsetting changes in cash flows or fair values of hedged items. Changes in fair value of a derivative that is effective and that qualifies as a cash flow hedge are recorded in OCI and are reclassified into earnings when the forecasted transaction or related cash flows affect earnings. Changes in fair value of a derivative that qualifies as a fair value hedge and the change in fair value of the hedged item are both recorded in earnings and offset each other when the transaction is effective. Those derivatives that are classified as trading instruments are recorded at fair value with changes in fair value recorded in earnings. The Company discontinues hedge accounting when it determines that the derivative is no longer effective in offsetting changes in the cash flows of the hedged item, that it is unlikely that the forecasted transaction will occur, or that the designation of the derivative as a hedging instrument is no longer appropriate.

Segment Reporting. The Company, through its bank subsidiary, provides a broad range of financial services to individuals and companies primarily in Maine. These services include lending, checking, savings and time deposits, cash management, brokerage, wealth management and trust services. Substantially all of the Company's revenues, profits, and assets are derived by the Bank from banking products and services. The Company did not have any reportable segments for the year ended December 31, 2017, 2016 or 2015.

Recent Accounting Pronouncements.(The following recently issued accounting pronouncements are presented in chronological order of required adoption date for the Company. Should the Company have early adopted a recently issued accounting pronouncement it has been presented in the year of adoption.)

In February 2018, the FASB issued ASU No. 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulate Other Comprehensive Income ("ASU 2018-02"). ASU 2018-02 was issued to allow a reclassification from AOCI to retained earnings for stranded tax effects resulting from the Tax Act. The Company made a policy election to adopt ASU 2018-02 effective for its year ended December 31, 2017 consolidated financial statements, the period in which the effects of the change in the U.S. federal corporate income tax due to the Tax Act were recognized. The adoption of ASU 2018-02 resulted in a $3.5 million income reclassification from AOCI to retained earnings within its consolidated statements of condition and consolidated statements of shareholders' equity for the year ended December 31, 2017.

In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date ("ASU 2015-14"). ASU 2015-14 was issued to defer the effective date of ASU 2014-09, Revenue from Contracts with Customers (Topic 606) ("ASU 2014-09"), for all entities by one year. ASU 2014-09 was issued to clarify the principles for recognizing revenue and to develop a common revenue standard. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period.

The Company adopted ASU 2014-09 effective January 1, 2018 using the modified-retrospective transition method. As part of its assessment, the Company concluded that the following material revenue streams were within the scope of ASU 2014-09: (i) service charges on deposit accounts; (ii) debit card interchange income; and (iii) income from fiduciary services and brokerage fees. Through the Company's assessment, it was determined that the impact of the adoption of ASU 2014-09 is not material to its financial statements. There will be no cumulative-effect adjustment to beginning shareholders' equity under the modified-retrospective transition method within the Company's first quarter 2018 financial reporting on Form 10-Q as there was no change in revenue recognition upon adoption of ASU 2014-09.

In January 2016, the FASB issued ASU No. 2016-01, Income Statement - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Liabilities ("ASU 2016-01"). ASU 2016-01 was issued to enhance the reporting model for financial instruments to provide the users of financial statements with more useful information for decisions. The Company adopted ASU 2016-01 effective January 1, 2018. Upon adoption, the Company will recognize unrealized gains and losses on its equity securities directly through the Company's consolidated statements of income, instead of reporting unrealized gains and losses on equity investments designated as AFS within AOCI. A cumulative-effect adjustment will occur to the Company's beginning shareholders' equity within its first quarter 2018 financial reporting on Form 10-Q to reclassify the unrealized gain reporting within AOCI at December 31, 2017 to retained earnings. The reclassification is immaterial to the Company's financial statements.

In addition, ASU 2016-01 also requires companies to utilize an "exit price" fair value methodology for purposes of disclosing the fair value of financial assets and liabilities not measured and reported at fair value on a recurring or non-recurring basis. The Company does not anticipate ASU 2016-01 will materially impact the Company's financial disclosures.

In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost ("ASU 2017-07"). ASU 2017-07 was issued to improve the presentation of net periodic pension cost and net periodic postretirement by companies to disaggregate the service cost component from the other components of net benefit cost, as well as provide other guidance to improve consistency, transparency and usefulness. Upon adoption in the first quarter of 2018, the Company will present and disclose the service cost component in the salaries and employee benefits line on its consolidated statements of income and the other components of net periodic benefit cost within other expenses on its consolidated statements of income. Upon adoption, the change in presentation will be applied retrospectively. The Company will use the amounts previously disclosed within its prior year financial statements as a practical expedient for retrospective presentation within its consolidated statements of income. The other provisions of ASU 2017-07 are not applicable to the Company. ASU 2017-07 will not have a material impact to its financial statements upon adoption.

In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting ("ASU 2017-09"). ASU 2017-09 was issued to provide clarification about which changes to the terms or conditions of a share-based payment award would require application of modification accounting in Topic 718. ASU 2017-09 is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in an interim period. ASU 2017-09 is to be applied prospectively effective as of the adoption date.

During the year ended December 31, 2017, the Company elected to early adopt ASU 2017-09, effective as of January 1, 2017. The Company has not had any modifications to its share-based awards for the year ended December 31, 2017.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). ASU 2016-02 was issued to increase transparency and comparability among organizations by recognizing lease assets and liabilities (including operating leases) on the balance sheet and disclosing key information about leasing arrangements. Current lease accounting does not require the inclusion of operating leases in the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, early application is permitted. The Company will adopt under a modified-retrospective approach.

Upon adoption, ASU 2016-02 will increase the Company's total assets and liabilities on its consolidated statements of condition as its operating leases will be accounted for as a right-of-use asset and a lease liability; however, the Company does not anticipate that upon adoption the ASU will have a material effect on its consolidated financial statements. The Company continues to evaluate the impact of adoption of this standard.

In March 2017, the FASB issued ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities ("ASU 2017-08"). ASU 2017-08 was issued to shorten the amortization period for certain callable debt securities purchased and carried at a premium, by requiring the premium to be amortized to the earliest call date of the debt security. ASU 2017-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The Company will adopt on a modified retrospective basis with any necessary adjustments to retained earnings as a cumulative-effect adjustment. While the Company continues to assess the impact of ASU 2017-08, it does not expect the ASU will have a material impact to its financial statements upon adoption.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12"). ASU 2017-12 was issued to make certain specific improvements to hedge accounting to better align hedge accounting with risk management activities, eliminate the separate measurement and recording of hedge ineffectiveness, improve presentation and disclosure, and other simplifications. ASU 2017-12 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. All transition requirements and elections are to be applied to existing hedging relationships upon adoption. While the Company continues to assess the impact of ASU 2017-12, it does not believe it will have a material impact on the Company's consolidated financial statements upon adoption.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). ASU 2016-13 was issued to require timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years, for public companies. Early adoption is permitted for annual periods beginning after December 15, 2018, including interim periods within that fiscal year. The Company will adopt the guidance under a modified-retrospective approach, whereby a cumulative-effect adjustment will be made to retained earnings upon adoption. The Company will use a prospective transition approach for debt securities for which an OTTI had been recognized before the effective date, as applicable.

While the Company continues to prepare for the adoption of ASU 2016-13 on January 1, 2020, it recognizes the changes to its consolidated financial statements upon adoption are imminent as the ASU requires:

• A change in the Company's assessment of its ALL and allowance on unused commitments as it will transition from an incurred loss model to an expected loss model, which may result in an increase in the ALL upon adoption and may negatively impact the Company and Bank's regulatory capital ratios.

• May reduce the carrying value of the Company's HTM investment securities as it will require an allowance on the expected losses over the life of these securities to be recorded upon adoption.

• Changes to the considerations when assessing AFS debt securities for OTTI, including (i) no longer considering the amount of time a security has been in an unrealized loss position and (ii) no longer considering the historical and implied volatility of a security and recoveries or declines in the fair value after the balance sheet date, as well as the presentation of OTTI as an allowance rather than a permanent write-down of the debt security.

• Changes to the disclosure requirements to reflect the transition from an incurred loss methodology to an expected credit loss methodology, as well as certain disclosures of credit quality indicators in relation to the amortized cost of financing receivables disaggregated by year of origination (or vintage).

The Company continues to assess the overall impact to its financial statements, and, at this time, it does not have an estimated impact to its financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"). ASU 2017-04 was issued to reduce the cost and complexity of the goodwill impairment test. To simplify the subsequent measurement of goodwill, step two of the goodwill impairment test was eliminated. Instead, in accordance with ASU 2017-04, a Company will recognize an impairment of goodwill should the carrying value of a reporting unit exceed its fair value (i.e. step one). ASU 2017-04 will be effective for the Company on January 1, 2020 and will be applied prospectively.

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Mergers and Acquisitions

12 Months Ended

Dec. 31, 2017

Business Combinations [Abstract]

Mergers and Acquisitions

Mergers and Acquisitions

Acadia Trust, N.A. — November 30, 2016

On November 30, 2016, the Company completed its merger of Acadia Trust, N.A., the Company's wholly-owned subsidiary, into the Bank, also the Company's wholly-owned subsidiary, and created a new wealth management and trust department of the Bank, Camden National Wealth Management. The merger did not qualify as a business combination and did not have any effect on the Company's consolidated financial condition.

Acquisition of SBM Financial, Inc. — October 16, 2015

On October 16, 2015, the Company completed its acquisition of 100% of SBM's common stock, through the completion of a two-step merger of Camden National Corporation, SBM and Atlantic Acquisitions, LLC, a wholly-owned subsidiary of Camden National Corporation (the "Merger"). The Merger qualified as a tax-free reorganization for federal income tax purposes and, pursuant to the terms and merger agreement, dated as of March 29, 2015, by and among Camden National Corporation, SBM and Atlantic Acquisitions, LLC ("Merger Agreement"), each share of SBM's common stock outstanding at the effective time of the acquisition was converted into the right to receive, at the election of the stockholder and subject to the allocation and proration procedures described in the Merger Agreement, either: (1) $206.00 in cash, without interest or (2) 8.132 shares of common stock of the Company; provided that 80% of the SBM shares outstanding immediately prior to the effective time of the acquisition were converted into the right to receive common stock of the Company and the remaining SBM shares were converted into the right to receive cash. The total consideration paid by the Company was $136.7 million, consisting of (i) $26.1 million in cash; (ii) 4,124,643 shares of Camden common stock valued at $108.6 million, based on the October 16, 2015 closing price of the Company's common stock of $26.32 per share; and (iii) the fair value of 139,032 non-qualified stock options issued under the 2012 Plan of $2.0 million. Pursuant to the Merger Agreement, all unexercised non-qualified stock options held by SBM option holders immediately vested upon completion of the acquisition and were to roll into the Company's non-qualified stock options using the 8.132 share conversion ratio (rounded down to the nearest whole share). The non-qualified stock options issued under the Company's 2012 Plan maintained the same terms and conditions as previously held under SBM's equity plan. The fair value of the non-qualified stock options approximated the intrinsic value of the non-qualified stock options at acquisition date.

The Merger complemented the Company's existing footprint within Maine, while expanding its presence in the higher growth Southern Maine market and into Massachusetts. In addition to providing incremental market share and increasing its presence within Southern Maine, the acquisition improved the Company's interest rate risk exposure in a rising rate environment through a larger mix of variable rate loans as percentage of total loans and additional core deposits (non-interest checking, interest checking, savings and money market accounts).

The Company accounted for the Merger using the acquisition method. The acquisition method requires the acquirer to recognize the assets acquired and the liabilities assumed at their fair values as of the acquisition date (with limited exceptions), and does not provide for acquisition expenses to be capitalized as part of the transaction.

The Company incurred acquisition-related costs for the periods indicated as detailed below:

	For The Year Ended December 31,
	2017		2016		2015
Salaries and employee benefits(1)	$	—	$	8	$	3,240
Furniture, equipment and data processing	—		279		1,531
Net occupancy	—		439		1,237
Consulting and professional fees(2)	—		80		2,453
Other expenses(3)	—		60		1,954
Total merger and acquisition costs	$	—	$	866	$	10,415

(1) Includes the costs associated with pre-existing change-in-control agreements in place at the time of the Merger and employee termination costs, including severance.

(2) Includes the cost of a negotiated non-compete arrangement entered into in connection with the Merger of $400,000 in 2015.

(3) Other expenses include marketing and insurance costs, certain contract termination costs, various printing and mailing costs associated with various customer communications, and travel-related costs associated with the integration of the two companies in 2015.

Also in connection with the Merger, the Company incurred certain equity issuance costs totaling $612,000 related to the registration of additional shares of the Company's common stock. These costs have been accounted for as a reduction to shareholders' equity and have been presented as such within the Company's consolidated statements of changes in shareholders' equity for the year ended December 31, 2015.

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed as of the date of the acquisition:

	As Acquired		Fair Value Adjustments (Previously Reported)			Measurement-Period Adjustments		As Recorded at Acquisition
Consideration Paid:
Cash								$	26,125
Company common stock (4,124,643 shares at $26.32 per share)								108,561
Non-qualified stock options								1,990
Total consideration paid								136,676
Recognized identifiable assets acquired and liabilities assumed, at fair value:
Loans and loans held for sale	$	639,390	$	(11,497	)	$	137	628,030
Cash and due from banks	86,042		—			—		86,042
Investments	39,716		26			—		39,742
Deferred tax assets	26,293		(1,177		)	666		25,782
Premises and equipment	16,851		7,093			—		23,944
OREO	2,530		(1,801		)	—		729
Core deposit intangible assets	—		6,608			—		6,608
Other assets	5,421		(170		)	157		5,408
Deposits and borrowings	719,640		1,546			—		721,186
Other liabilities	8,512		(198		)	—		8,314
Total identified assets acquired and liabilities assumed, at fair value	$	88,091	$	(2,266	)	$	960	86,785
Goodwill								$	49,891

The Company completed its purchase accounting for the Merger by June 30, 2016. In connection with completion of its accounting for the acquisition, the Company made certain measurement-period adjustments that decreased goodwill reported at December 31, 2015 by $960,000. The measurement-period adjustments did not have a material effect on current year's net income nor will it have a material effect on future years' net income. The Company accounted for the measurement period adjustment prospectively in 2016 in accordance with ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments. Upon completion of purchase accounting, the Company recorded $49.9 million of goodwill in connection with the Merger, which was allocated to the Company's banking reporting unit. The goodwill generated represents the synergies expected from combining operations of the two organizations, including, but not limited to, systems conversion, consolidation of bank locations and operation centers, and reduced headcount across operation teams. The goodwill generated from the transaction is not deductible for tax purposes.

Fair value adjustments to assets acquired and liabilities assumed are generally amortized using an effective yield, straight-line basis, or other reasonable method consistent with the expected benefit over periods consistent with the estimated useful life or contractual term of the related assets and liabilities.

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Securities

12 Months Ended

Dec. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Securities

Securities

The following tables summarize the amortized costs and estimated fair values of AFS and HTM securities, as of the dates indicated:

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
December 31, 2017:
AFS Securities:
Obligations of states and political subdivisions	$	7,232	$	103	$	—		$	7,335
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	510,176		597		(7,471		)	503,302
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	279,575		14		(6,790		)	272,799
Subordinated corporate bonds	5,484		173		—			5,657
Total AFS debt securities	802,467		887		(14,261		)	789,093
Equity securities	554		252		—			806
Total AFS securities	$	803,021	$	1,139	$	(14,261	)	$	789,899
HTM Securities:
Obligations of states and political subdivisions	$	94,073	$	1,077	$	(237	)	$	94,913
Total HTM securities	$	94,073	$	1,077	$	(237	)	$	94,913
December 31, 2016:
AFS Securities:
Obligations of states and political subdivisions	$	8,848	$	153	$	—		$	9,001
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	485,222		2,515		(7,115		)	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	289,046		265		(5,421		)	283,890
Subordinated corporate bonds	5,481		132		—			5,613
Total AFS debt securities	788,597		3,065		(12,536		)	779,126
Equity securities	632		109		—			741
Total AFS securities	$	789,229	$	3,174	$	(12,536	)	$	779,867
HTM Securities:
Obligations of states and political subdivisions	$	94,609	$	618	$	(631	)	$	94,596
Total HTM securities	$	94,609	$	618	$	(631	)	$	94,596

At December 31, 2017 and 2016, net unrealized losses on AFS securities included in AOCI amounted to $10.3 million, net of a deferred tax benefit of $2.8 million, and $6.1 million, net of a deferred tax benefit of $3.3 million, respectively.

Impaired Investment Securities

Management periodically reviews the Company’s investment portfolio to determine the cause, magnitude and duration of declines in the fair value of each security. Thorough evaluations of the causes of the unrealized losses are performed to determine whether the impairment is temporary or other-than-temporary in nature. Considerations such as the ability of the securities to meet cash flow requirements, levels of credit enhancements, risk of curtailment, and recoverability of invested amount over a reasonable period of time, and the length of time the security is in a loss position, for example, are applied in determining OTTI. Once a decline in value is determined to be other-than-temporary, the cost basis of the security is permanently reduced and a corresponding charge to earnings is recognized.

The following table presents the estimated fair values and gross unrealized losses of investment securities that were in a continuous loss position at December 31, 2017 and 2016, by length of time that individual securities in each category have been in a continuous loss position:

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2017:
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	221,466	$	(2,393	)	$	233,971	$	(5,078	)	$	455,437	$	(7,471	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	102,612		(696		)	164,389		(6,094		)	267,001		(6,790		)
Total AFS securities	$	324,078	$	(3,089	)	$	398,360	$	(11,172	)	$	722,438	$	(14,261	)
HTM Securities:
Obligations of states and political subdivisions	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
Total HTM securities	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
December 31, 2016:
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	348,579	$	(5,780	)	$	29,496	$	(1,335	)	$	378,075	$	(7,115	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	163,412		(2,906		)	74,212		(2,515		)	237,624		(5,421		)
Total AFS securities	$	511,991	$	(8,686	)	$	103,708	$	(3,850	)	$	615,699	$	(12,536	)
HTM Securities:
Obligations of states and political subdivisions	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)
Total HTM securities	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)

At December 31, 2017 and 2016, the Company held 209 investment securities with a fair value of $741.2 million and $658.5 million that were in an unrealized loss position totaling $14.5 million and $13.2 million, respectively, that are considered temporary. Of these, MBS and CMOs with a fair value of $398.4 million and $103.7 million were in an unrealized loss position, and have been in an unrealized loss position for 12 months or more totaling $11.2 million and $3.9 million at December 31, 2017 and 2016, respectively. The decline in the fair value of the debt securities is reflective of current interest rates in excess of the yield received on investments and was not indicative of an overall credit deterioration or other factors with the Company's investment portfolio. At December 31, 2017 and 2016, gross unrealized losses on the Company's AFS and HTM securities were 2% of the respective investment securities fair value.

The Company has the intent and ability to retain its investment securities in an unrealized loss position at December 31, 2017 until the decline in value has recovered.

Security Gains and Losses and OTTI of Securities

The following table details the Company’s sales of AFS investment securities, the gross realized gains and losses, and OTTI of securities:

	For The Year Ended December 31,
	2017			2016			2015
Proceeds from sales of securities	$	20,366		$	28,850		$	12,426
Gross realized gains	869			125			221
Gross realized losses	(14		)	(74		)	(217		)
Previously recorded OTTI	—			—			204

For the year ended December 31, 2017, 2016, and 2015, the Company sold certain AFS investment securities with a total carrying value of $19.5 million, $28.8 million, and $12.4 million, respectively, and recorded net gains on the sale of AFS securities of $855,000, $51,000, and $4,000, respectively, within non-interest income in the consolidated statements of income.

FHLBB and FRB Stock

As of December 31, 2017 and 2016, the Company's investment in FHLBB stock was $18.3 million and $17.8 million, respectively. At December 31, 2017 and 2016, the Company's investment in FRB stock was $5.4 million. At December 31, 2017 and 2016, there were no indications of impairment of the Company's investment in FHLBB or FRB stock.

For the year ended December 31, 2017, 2016 and 2015, the Company recorded dividend income from its investment in FHLBB and FRB stock of $1.1 million, $1.0 million and $579,000, respectively.

Securities Pledged

At December 31, 2017 and 2016, securities with an amortized cost of $702.5 million and $597.3 million, respectively, and estimated fair values of $691.2 million and $589.7 million, respectively, were pledged to secure FHLBB advances, public deposits, and securities sold under agreements to repurchase, and for other purposes required or permitted by law.

Contractual Maturities

The amortized cost and estimated fair values of securities by contractual maturity at December 31, 2017 are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Fair Value
AFS Securities
Due in one year or less	$	4,986	$	4,983
Due after one year through five years	104,294		103,572
Due after five years through ten years	212,809		209,663
Due after ten years	480,378		470,875
	$	802,467	$	789,093
HTM Securities
Due in one year or less	$	751	$	751
Due after one year through five years	4,705		4,721
Due after five years through ten years	10,110		10,192
Due after ten years	78,507		79,249
	$	94,073	$	94,913

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Loans and Allowance for Loan Losses

12 Months Ended

Dec. 31, 2017

Receivables [Abstract]

Loans and Allowance for Loan Losses

Loans and Allowance for Loan Losses

The composition of the Company’s loan portfolio, excluding residential loans held for sale, at December 31, 2017 and 2016 was as follows:

	December 31,
	2017		2016
Residential real estate loans	$	858,369	$	802,494
Commercial real estate loans	1,164,023		1,050,780
Commercial loans	373,400		333,639
Home equity loans	323,378		329,907
Consumer loans	18,149		17,332
HPFC	45,120		60,412
Total loans	$	2,782,439	$	2,594,564

The loan balances for each portfolio segment presented above are net of their respective unamortized fair value mark discount on acquired loans and net of unamortized loan origination costs totaling:

	December 31,
	2017			2016
Net unamortized fair value mark discount on acquired loans	$	6,207		$	8,810
Net unamortized loan origination costs	(963		)	(66		)
Total	$	5,244		$	8,744

The Bank’s lending activities are primarily conducted in Maine, but also include a mortgage loan production office in Massachusetts and a commercial loan production office in New Hampshire. The Company originates single family and multi-family residential loans, commercial real estate loans, business loans, municipal loans and a variety of consumer loans. In addition, the Company makes loans for the construction of residential homes, multi-family properties and commercial real estate properties. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the level of overall economic activity within the geographic area and the general economy.

The HPFC loan portfolio consists of niche commercial lending to the small business medical field, including dentists, optometrists and veterinarians across the U.S. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the success of the borrower's business. In 2016, the Company closed HPFC's operations and is no longer originating loans.

The Bank, in the normal course of business, has made loans to certain officers, directors and their associated companies, under terms that are consistent with the Company’s lending policies and regulatory requirements. Loans, including any unused lines of credit, to related parties were as follows:

	December 31,
	2017			2016
Balance at beginning of year	$	15,942		$	16,628
Loans made/advanced and additions	230			434
Repayments and reductions	(3,032		)	(1,120		)
Balance at end of year	$	13,140		$	15,942

The ALL is management’s best estimate of the inherent risk of loss in the Company’s loan portfolio as of the consolidated statement of condition date. Management makes various assumptions and judgments about the collectability of the loan portfolio and provides an allowance for potential losses based on a number of factors including historical losses. If those assumptions are incorrect, the ALL may not be sufficient to cover losses and may cause an increase in the allowance in the future. Among the factors that could affect the Company’s ability to collect loans and require an increase to the allowance in the future are: (i) financial condition of borrowers; (ii) real estate market changes; (iii) state, regional, and national economic conditions; and (iv) a requirement by federal and state regulators to increase the provision for loan losses or recognize additional charge-offs.

The Board of Directors monitors credit risk through the Directors' Loan Review Committee, which reviews large credit exposures, monitors the external loan review reports, reviews the lending authority for individual loan officers when required, and has approval authority and responsibility for all matters regarding the loan policy and other credit-related policies, including reviewing and monitoring asset quality trends, concentration levels, and the ALL methodology. Credit Risk Administration and the Credit Risk Policy Committee oversee the Company's systems and procedures to monitor the credit quality of its loan portfolio, conduct a loan review program, maintain the integrity of the loan rating system, determine the adequacy of the ALL and support the oversight efforts of the Directors' Loan Review Committee and the Board of Directors. The Company's practice is to proactively manage the portfolio such that management can identify problem credits early, assess and implement effective work-out strategies, and take charge-offs as promptly as practical. In addition, the Company continuously reassesses its underwriting standards in response to credit risk posed by changes in economic conditions.

In conjunction with the Company's annual ALL policy review in the fourth quarter of 2017, the Company revised its methodology for calculating the ALL on construction and development loans before reaching permanent financing. This change in ALL methodology did not have a material impact on the Company's reported ALL as of December 31, 2017.

For purposes of determining the ALL, the Company disaggregates its loans into portfolio segments, which include residential real estate, commercial real estate, commercial, home equity, consumer and HPFC. Each portfolio segment possesses unique risk characteristics that are considered when determining the appropriate level of allowance. These risk characteristics unique to each portfolio segment include:

Residential Real Estate. Residential real estate loans held in the Company's loan portfolio are made to borrowers who demonstrate the ability to make scheduled payments with full consideration to underwriting factors. Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan-to-value ratios within established policy guidelines. Collateral consists of mortgage liens on one- to four-family residential properties.

Commercial Real Estate. Commercial real estate loans consist of mortgage loans to finance investments in real property such as multi-family residential, commercial/retail, office, industrial, hotels, educational, health care facilities and other specific use properties. Commercial real estate loans are typically written with amortizing payment structures. Collateral values are determined based upon appraisals and evaluations in accordance with established policy guidelines. Loan-to-value ratios at origination are governed by established policy and regulatory guidelines. Commercial real estate loans are primarily paid by the cash flow generated from the real property, such as operating leases, rents, or other operating cash flows from the borrower.

Commercial. Commercial loans consist of revolving and term loan obligations extended to business and corporate enterprises for the purpose of financing working capital and/or capital investment. Collateral generally consists of pledges of business assets including, but not limited to, accounts receivable, inventory, plant and equipment, and/or real estate, if applicable. Commercial loans are primarily paid by the operating cash flow of the borrower. Commercial loans may be secured or unsecured.

Home Equity. Home equity loans and lines are made to qualified individuals for legitimate purposes secured by senior or junior mortgage liens on owner-occupied one- to four-family homes, condominiums, or vacation homes. The home equity loan has a fixed rate and is billed as equal payments comprised of principal and interest. The home equity line of credit has a variable rate and is billed as interest-only payments during the draw period. At the end of the draw period, the home equity line of credit is billed as a percentage of the principal balance plus all accrued interest. Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan-to-value ratios within established policy guidelines.

Consumer. Consumer loan products including personal lines of credit and amortizing loans made to qualified individuals for various purposes such as education, auto loans, debt consolidation, personal expenses or overdraft protection. Borrower qualifications include favorable credit history combined with supportive income and collateral requirements within established policy guidelines. Consumer loans may be secured or unsecured.

HPFC. Prior to the Company's closing of HPFC's operations in 2016, it provided commercial lending to dentists, optometrists and veterinarians, many of which were start-up companies. HPFC's loan portfolio consists of term loan obligations extended for the purpose of financing working capital and/or purchase of equipment. Collateral consists of pledges of business assets including, but not limited to, accounts receivable, inventory, and/or equipment. These loans are primarily paid by the operating cash flow of the borrower and the terms range from seven to ten years.

The following table presents the activity in the ALL and select loan information by portfolio segment for the year ended December 31, 2017, 2016, and 2015:

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Unallocated		Total
For The Year Ended   December 31, 2017:
ALL:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
Loans charged off	(482		)	(124		)	(1,014		)	(434		)	(124		)	(290		)	—		(2,468		)
Recoveries	30			141			301			2			17			6			—		497
Provision (credit)(1)	1,378			(308		)	1,129			605			159			63			—		3,026
Ending balance	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	—	$	24,171
ALL balance attributable loans:
Individually evaluated for impairment	$	568		$	1,441		$	—		$	—		$	—		$	—		$	—	$	2,009
Collectively evaluated for impairment	4,518			10,422			4,171			2,367			233			451			—		22,162
Total ending ALL	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	—	$	24,171
Loans:
Individually evaluated for impairment	$	5,171		$	6,199		$	1,791		$	429		$	—		$	—		$	—	$	13,590
Collectively evaluated for impairment	853,198			1,157,824			371,609			322,949			18,149			45,120			—		2,768,849
Total loan balances	$	858,369		$	1,164,023		$	373,400		$	323,378		$	18,149		$	45,120		$	—	$	2,782,439
For The Year Ended   December 31, 2016:
ALL:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	—	$	21,166
Loans charged off	(356		)	(315		)	(2,218		)	(308		)	(101		)	(507		)	—		(3,805		)
Recoveries	95			50			332			2			7			—			—		486
Provision (credit)(1)	(124		)	1,987			2,400			(231		)	82			1,155			—		5,269
Ending balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
ALL balance attributable loans:
Individually evaluated for impairment	$	483		$	1,373		$	—		$	86		$	—		$	65		$	—	$	2,007
Collectively evaluated for impairment	3,677			10,781			3,755			2,108			181			607			—		21,109
Total ending ALL	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
Loans:
Individually evaluated for impairment	$	4,348		$	13,317		$	2,028		$	457		$	7		$	97		$	—	$	20,254
Collectively evaluated for impairment	798,146			1,037,463			331,611			329,450			17,325			60,315			—		2,574,310
Total loan balances	$	802,494		$	1,050,780		$	333,639		$	329,907		$	17,332		$	60,412		$	—	$	2,594,564

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC		Unallocated			Total
For The Year Ended December 31, 2015:
ALL:
Beginning balance	$	4,899		$	7,951		$	3,354		$	2,247		$	281		$	—	$	2,384		$	21,116
Loans charged off	(801		)	(481		)	(655		)	(525		)	(154		)	—		—			(2,616		)
Recoveries	55			74			389			188			22			—		—			728
Provision (credit)(1)	392			2,888			153			821			44			24		(2,384		)	1,938
Ending balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24	$	—		$	21,166
ALL balance attributable loans:
Individually evaluated for impairment	$	544		$	644		$	92		$	89		$	—		$	—	$	—		$	1,369
Collectively evaluated for impairment	4,001			9,788			3,149			2,642			193			24		—			19,797
Total ending ALL	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24	$	—		$	21,166
Loans:
Individually evaluated for impairment	$	6,026		$	4,610		$	3,937		$	588		$	74		$	—	$	—		$	15,235
Collectively evaluated for impairment	814,591			923,341			293,784			348,046			17,879			77,330		—			2,474,971
Total loan balances	$	820,617		$	927,951		$	297,721		$	348,634		$	17,953		$	77,330	$	—		$	2,490,206

(1) The provision (credit) for loan losses excludes any impact for the change in the reserve for unfunded commitments, which represents management's estimate of the amount required to reflect the probable inherent losses on outstanding letters of credit and unused lines of credit. The reserve for unfunded commitments is presented within accrued interest and other liabilities on the consolidated statements of condition. At December 31, 2017, 2016, and 2015, the reserve for unfunded commitments was $20,000, $11,000 and $22,000, respectively.

The following table reconciles the year ended December 31, 2017, 2016, and 2015 provision for loan losses to the provision for credit losses as presented on the consolidated statement of income:

	For the Year Ended December 31,
	2017		2016			2015
Provision for loan losses	$	3,026	$	5,269		$	1,938
Change in reserve for unfunded commitments	9		(11		)	(2		)
Provision for credit losses	$	3,035	$	5,258		$	1,936

The Company focuses on maintaining a well-balanced and diversified loan portfolio. Despite such efforts, it is recognized that credit concentrations may occasionally emerge as a result of economic conditions, changes in local demand, natural loan growth and runoff. To ensure that credit concentrations can be effectively identified, all commercial and commercial real estate loans are assigned Standard Industrial Classification codes, North American Industry Classification System codes, and state and county codes. Shifts in portfolio concentrations are monitored by the Company's Credit Risk Administration. As of December 31, 2017, the non-residential building operators' industry concentration was 11% of the Company's total loan portfolio and 27% of the total commercial real estate portfolio. There were no other industry concentrations exceeding 10% of the Company's total loan portfolio as of December 31, 2017.

 To further identify loans with similar risk profiles, the Company categorizes each portfolio segment into classes by credit risk characteristic and applies a credit quality indicator to each portfolio segment. The indicators for commercial, commercial real estate and residential real estate loans are represented by Grades 1 through 10 as outlined below. In general, risk ratings are adjusted periodically throughout the year as updated analysis and review warrants. This process may include, but is not limited to, annual credit and loan reviews, periodic reviews of loan performance metrics, such as delinquency rates, and quarterly reviews of adversely risk rated loans. The Company uses the following definitions when assessing grades for the purpose of evaluating the risk and adequacy of the ALL:

• Grade 1 through 6 — Grades 1 through 6 represent groups of loans that are not subject to adverse criticism as defined in regulatory guidance. Loans in these groups exhibit characteristics that represent low to moderate risks, which is measured using a variety of credit risk criteria, such as cash flow coverage, debt service coverage, balance sheet leverage, liquidity, management experience, industry position, prevailing economic conditions, support from secondary sources of repayment and other credit factors that may be relevant to a specific loan. In general, these loans are supported by properly margined collateral and guarantees of principal parties.

• Grade 7 — Loans with potential weakness (Special Mention). Loans in this category are currently protected based on collateral and repayment capacity and do not constitute undesirable credit risk, but have potential weakness that may result in deterioration of the repayment process at some future date. This classification is used if a negative trend is evident in the obligor’s financial situation. Special mention loans do not sufficiently expose the Company to warrant adverse classification.

• Grade 8 — Loans with definite weakness (Substandard). Loans classified as substandard are inadequately protected by the current sound worth and paying capacity of the obligor or by collateral pledged. Borrowers experience difficulty in meeting debt repayment requirements. Deterioration is sufficient to cause the Company to look to the sale of collateral.

• Grade 9 — Loans with potential loss (Doubtful). Loans classified as doubtful have all the weaknesses inherent in the substandard grade with the added characteristic that the weaknesses make collection or liquidation of the loan in full highly questionable and improbable. The possibility of some loss is extremely high, but because of specific pending factors that may work to the advantage and strengthening of the asset, its classification as an estimated loss is deferred until its more exact status may be determined.

• Grade 10 — Loans with definite loss (Loss). Loans classified as loss are considered uncollectible. The loss classification does not mean that the asset has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off the asset because recovery and collection time may be protracted.

Asset quality indicators are periodically reassessed to appropriately reflect the risk composition of the Company’s loan portfolio. Home equity and consumer loans are not individually risk rated, but rather analyzed as groups taking into account delinquency rates and other economic conditions which may affect the ability of borrowers to meet debt service requirements, including interest rates and energy costs. Performing loans include loans that are current and loans that are past due less than 90 days. Loans that are past due over 90 days and non-accrual loans, including TDRs, are considered non-performing.

The following table summarizes credit risk exposure indicators by portfolio segment as of the following dates:

	Residential Real Estate		Commercial Real Estate		Commercial		Home Equity		Consumer		HPFC		Total
December 31, 2017:
Pass (Grades 1 – 6)	$	846,394	$	1,130,235	$	354,904	$	—	$	—	$	43,049	$	2,374,582
Performing	—		—		—		321,727		18,149		—		339,876
Special Mention (Grade 7)	922		9,154		12,517		—		—		191		22,784
Substandard (Grade 8)	11,053		24,634		5,979		—		—		1,880		43,546
Non-performing	—		—		—		1,651		—		—		1,651
Total	$	858,369	$	1,164,023	$	373,400	$	323,378	$	18,149	$	45,120	$	2,782,439
December 31, 2016:
Pass (Grades 1 – 6)	$	789,554	$	1,003,386	$	321,148	$	—	$	—	$	58,943	$	2,173,031
Performing	—		—		—		328,287		17,328		—		345,615
Special Mention (Grade 7)	2,387		5,724		5,598		—		—		257		13,966
Substandard (Grade 8)	10,553		41,670		5,437		—		—		1,212		58,872
Doubtful (Grade 9)	—		—		1,456		—		—		—		1,456
Non-performing	—		—		—		1,620		4		—		1,624
Total	$	802,494	$	1,050,780	$	333,639	$	329,907	$	17,332	$	60,412	$	2,594,564

The Company closely monitors the performance of its loan portfolio. A loan is placed on non-accrual status when the financial condition of the borrower is deteriorating, payment in full of both principal and interest is not expected as scheduled or principal or interest has been in default for 90 days or more. Exceptions may be made if the asset is well-secured by collateral sufficient to satisfy both the principal and accrued interest in full and collection is reasonably assured. When one loan to a borrower is placed on non-accrual status, all other loans to the borrower are re-evaluated to determine if they should also be placed on non-accrual status. All previously accrued and unpaid interest is reversed at this time. A loan will return to accrual status when collection of principal and interest is assured and the borrower has demonstrated timely payments of principal and interest for a reasonable period. Unsecured loans, however, are not normally placed on non-accrual status because they are charged-off once their collectability is in doubt.

The following is a loan aging analysis by portfolio segment (including loans past due over 90 days and non-accrual loans) and a summary of non-accrual loans, which include TDRs, and loans past due over 90 days and accruing as of the following dates:

	30 –  59 Days Past Due		60 – 89 Days Past Due		Greater Than 90 Days		Total Past Due		Current		Total Loans Outstanding		Loans > 90 Days Past Due and Accruing		Non-Accrual Loans
December 31, 2017:
Residential real estate	$	3,871	$	1,585	$	4,021	$	9,477	$	848,892	$	858,369	$	—	$	4,979
Commercial real estate	849		323		5,528		6,700		1,157,323		1,164,023		—		5,642
Commercial	329		359		1,535		2,223		371,177		373,400		—		2,000
Home equity	1,046		173		1,329		2,548		320,830		323,378		—		1,650
Consumer	57		10		—		67		18,082		18,149		—		—
HPFC	139		1,372		419		1,930		43,190		45,120		—		1,043
Total	$	6,291	$	3,822	$	12,832	$	22,945	$	2,759,494	$	2,782,439	$	—	$	15,314
December 31, 2016:
Residential real estate	$	1,783	$	924	$	2,904	$	5,611	$	796,883	$	802,494	$	—	$	3,945
Commercial real estate	855		223		12,625		13,703		1,037,077		1,050,780		—		12,849
Commercial	633		218		1,675		2,526		331,113		333,639		—		2,088
Home equity	892		134		1,321		2,347		327,560		329,907		—		1,620
Consumer	38		—		4		42		17,290		17,332		—		4
HPFC	438		688		110		1,236		59,176		60,412		—		207
Total	$	4,639	$	2,187	$	18,639	$	25,465	$	2,569,099	$	2,594,564	$	—	$	20,713

Interest income that would have been recognized if loans on non-accrual status had been current in accordance with their original terms for the year ended December 31, 2017, 2016, and 2015 was $843,000, $888,000, and $586,000, respectively.

TDRs:

The Company takes a conservative approach with credit risk management and remains focused on community lending and reinvesting. The Company works closely with borrowers experiencing credit problems to assist in loan repayment or term modifications. TDR loans consist of loans where the Company, for economic or legal reasons related to the borrower’s financial difficulties, granted a concession to the borrower that it would not otherwise consider. TDRs, typically, involve term modifications or a reduction of either interest or principal. Once such an obligation has been restructured, it will remain a TDR until paid in full, or until the loan is again restructured at current market rates and no concessions are granted.

The specific reserve allowance was determined by discounting the total expected future cash flows from the borrower at the original loan interest rate, or if the loan is currently collateral-dependent, using the net realizable value, which was obtained through independent appraisals and internal evaluations. The following is a summary of TDRs, by portfolio segment, and the associated specific reserve included within the ALL as of December 31:

	Number of Contracts		Recorded Investment				Specific Reserve
	2017	2016	2017		2016		2017		2016
Residential real estate	24	21	$	3,604	$	3,221	$	452	$	483
Commercial real estate	3	3	976		1,008		16		—
Commercial	7	10	1,345		1,502		—		—
Consumer and home equity	2	1	307		16		—		—
Total	36	35	$	6,232	$	5,747	$	468	$	483

At December 31, 2017, the Company had performing and non-performing TDRs with a recorded investment balance of $5.0 million and $1.2 million, respectively. At December 31, 2016, the Company had performing and non-performing TDRs with a recorded investment balance of $4.3 million and $1.4 million, respectively.

The following represents loan modifications that occurred for the year ended December 31, 2017, 2016 and 2015 that qualify as TDRs and the type of loan modification made by portfolio segment at December 31:

	Number of Contracts			Pre-Modification Outstanding Recorded Investment						Post-Modification Outstanding Recorded Investment						Specific Reserve
	2017	2016	2015	2017		2016		2015		2017		2016		2015		2017		2016		2015
Residential real estate:
Maturity concession	2	—	—	$	298	$	—	$	—	$	298	$	—	$	—	$	15	$	—	$	—
Court ordered	—	—	1	—		—		74		—		—		78		—		—		27
Interest rate concession	1	—	—	134		—		—		145		—		—		—		—		—
Interest rate and maturity concession	1	—	—	148		—		—		156		—		—		30		—		—
Commercial:
Maturity concession	—	6	—	—		2,973		—		—		2,973		—		—		1,400		—
Home equity:
Interest rate and maturity concession	1	—	—	315		—		—		315		—		—		—		—		—
Total	5	6	1	$	895	$	2,973	$	74	$	914	$	2,973	$	78	$	45	$	1,400	$	27

In 2016, the Company completed the restructure of one commercial relationship, which included six individual commercial loans, and recorded a specific reserve of $1.4 million at the time of the restructure. In 2016, subsequent to the loan modification, the $1.4 million specific reserve established on the relationship was fully charged-off and, at December 31, 2017 and 2016, the Company did not carry a specific reserve on this relationship. As part of the restructure, the Company committed to lend additional funds of up to $280,000. At December 31, 2017 and 2016, the Company had loaned $22,000 and $47,000, respectively, on its commitment. The Company did not have any other commitments to lend additional funds to borrowers with loans classified as TDRs as of December 31, 2017.

For the year ended December 31, 2017, 2016 and 2015, the Company did not have any loans that had been modified as a TDR within the previous 12 months and for which the borrower subsequently defaulted for the periods indicated.

Impaired Loans:

Impaired loans consist of non-accrual and TDR loans that are individually evaluated for impairment in accordance with the Company's policy. The following is a summary of impaired loan balances and the associated allowance by portfolio segment as of and for the year ended December 31, 2017, 2016 and 2015:

	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2017:
With related allowance recorded:
Residential real estate	$	3,858	$	3,858	$	568	$	3,177	$	131
Commercial real estate	5,422		5,422		1,441		8,900		22
Commercial	—		—		—		31		—
Home equity	—		—		—		125		—
Consumer	—		—		—		—		—
HPFC	—		—		—		24		—
Ending balance	9,280		9,280		2,009		12,257		153
Without related allowance recorded:
Residential real estate	1,313		1,673		—		1,345		15
Commercial real estate	777		1,084		—		1,132		29
Commercial	1,791		2,964		—		1,920		10
Home equity	429		495		—		310		8
Consumer	—		—		—		2		—
HPFC	—		—		—		—		—
Ending balance	4,310		6,216		—		4,709		62
Total impaired loans	$	13,590	$	15,496	$	2,009	$	16,966	$	215
December 31, 2016:
With related allowance recorded:
Residential real estate	$	3,019	$	3,019	$	483	$	3,088	$	106
Commercial real estate	11,443		11,443		1,373		5,165		—
Commercial	—		—		—		762		—
Home equity	299		299		86		305		—
Consumer	—		—		—		—		—
HPFC	97		97		65		98		—
Ending balance	14,858		14,858		2,007		9,418		106
Without related allowance recorded:
Residential real estate	1,329		1,800		—		2,057		9
Commercial real estate	1,874		2,369		—		2,214		51
Commercial	2,028		3,209		—		2,507		16
Home equity	158		368		—		180		—
Consumer	7		10		—		12		—
HPFC	—		—		—		—		—
Ending balance	5,396		7,756		—		6,970		76
Total impaired loans	$	20,254	$	22,614	$	2,007	$	16,388	$	182

	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2015:
With related allowance recorded:
Residential real estate	$	3,191	$	3,191	$	544	$	6,064	$	112
Commercial real estate	1,825		1,857		644		1,753		—
Commercial	156		156		92		945		2
Home equity	303		303		89		900		—
Consumer	—		—		—		195		—
HPFC	—		—		—		—		—
Ending balance	5,475		5,507		1,369		9,857		114
Without related allowance recorded:
Residential real estate	2,835		4,353		—		2,175		8
Commercial real estate	2,785		3,426		—		2,719		65
Commercial	3,781		4,325		—		1,412		17
Home equity	285		688		—		369		—
Consumer	74		150		—		20		—
HPFC	—		—		—		—		—
Ending balance	9,760		12,942		—		6,695		90
Total impaired loans	$	15,235	$	18,449	$	1,369	$	16,552	$	204

In-Process Foreclosure Proceedings:

At December 31, 2017 and 2016, the Company had $1.9 million and $1.4 million of consumer mortgage loans secured by residential real estate properties for which foreclosure proceedings were in process. The Company continues to be focused on working these consumer mortgage loans through the foreclosure process to resolution; however, the foreclosure process, typically, will take 18 to 24 months due to the State of Maine foreclosure laws.

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Goodwill

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Goodwill

The changes in goodwill for the year ended December 31, 2017 and 2016 for each reporting unit are shown in the table below:

	Banking			Financial Services			Total
Balance as of January 1, 2016:
Goodwill	$	91,753		$	7,474		$	99,227
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	91,753			3,904			95,657
Measurement-period adjustment (Note 2)	(960		)	—			(960		)
Balance as of December 31, 2016:
Goodwill	90,793			7,474			98,267
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	$	90,793		$	3,904		$	94,697
Balance as of January 1 and December 31, 2017:
Goodwill	$	90,793		$	7,474		$	98,267
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	$	90,793		$	3,904		$	94,697

The Company performs its annual goodwill impairment assessment as of November 30^th, and at interim periods if indicators of potential impairment exist. The Company completed its annual goodwill impairment test as of November 30, 2017, 2016 and 2015 for each reporting unit and determined there was no goodwill impairment.

Other Intangible Assets

The gross carrying amount and accumulated amortization of other intangible assets were as follows at the periods indicated:

	December 31,
	2017							2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core deposit intangible	$	23,908	$	(18,953	)	$	4,955	$	23,908	$	(17,220	)	$	6,688
Trust relationship intangible	753		(753		)	—		753		(677		)	76
Total	$	24,661	$	(19,706	)	$	4,955	$	24,661	$	(17,897	)	$	6,764

For the year ended December 31, 2017, 2016 and 2015, the Company recorded amortization expense of $1.8 million, $1.9 million and $1.3 million, respectively.

The following table reflects the expected amortization schedule for other intangible assets over the period of estimated economic benefit (assuming no additional intangible assets are created or impaired):

	Core Deposit Intangible
2018	$	725
2019	705
2020	682
2021	655
2022	625
Thereafter	1,563
Total	$	4,955

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Other Intangible Assets

12 Months Ended

Dec. 31, 2017

Other Intangible Assets [Abstract]

Other Intangibles Assets

Goodwill

The changes in goodwill for the year ended December 31, 2017 and 2016 for each reporting unit are shown in the table below:

	Banking			Financial Services			Total
Balance as of January 1, 2016:
Goodwill	$	91,753		$	7,474		$	99,227
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	91,753			3,904			95,657
Measurement-period adjustment (Note 2)	(960		)	—			(960		)
Balance as of December 31, 2016:
Goodwill	90,793			7,474			98,267
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	$	90,793		$	3,904		$	94,697
Balance as of January 1 and December 31, 2017:
Goodwill	$	90,793		$	7,474		$	98,267
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	$	90,793		$	3,904		$	94,697

The Company performs its annual goodwill impairment assessment as of November 30^th, and at interim periods if indicators of potential impairment exist. The Company completed its annual goodwill impairment test as of November 30, 2017, 2016 and 2015 for each reporting unit and determined there was no goodwill impairment.

Other Intangible Assets

The gross carrying amount and accumulated amortization of other intangible assets were as follows at the periods indicated:

	December 31,
	2017							2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core deposit intangible	$	23,908	$	(18,953	)	$	4,955	$	23,908	$	(17,220	)	$	6,688
Trust relationship intangible	753		(753		)	—		753		(677		)	76
Total	$	24,661	$	(19,706	)	$	4,955	$	24,661	$	(17,897	)	$	6,764

For the year ended December 31, 2017, 2016 and 2015, the Company recorded amortization expense of $1.8 million, $1.9 million and $1.3 million, respectively.

The following table reflects the expected amortization schedule for other intangible assets over the period of estimated economic benefit (assuming no additional intangible assets are created or impaired):

	Core Deposit Intangible
2018	$	725
2019	705
2020	682
2021	655
2022	625
Thereafter	1,563
Total	$	4,955

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Premises and Equipment

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Premises and Equipment

Premises and Equipment

Details of premises and equipment, at cost, for the periods indicated, were as follows:

	2017			2016
Land and land improvements	$	2,985		$	3,012
Buildings and leasehold improvements	37,054			36,958
Furniture, fixtures and equipment	36,053			34,043
Total cost	76,092			74,013
Accumulated depreciation and amortization	(34,201		)	(31,140		)
Net premises and equipment	$	41,891		$	42,873

Depreciation and amortization expense for the periods indicated were as follows:

		For The Year Ended December 31,
Fixed Asset Type	Income Statement Line Item	2017		2016		2015
Equipment and data	Furniture, equipment and data processing	$	1,874	$	1,942	$	1,620
Premises	Net occupancy costs	1,643		1,757		1,140
Software	Furniture, equipment and data processing	244		275		337
Equipment, data and premises	Merger and acquisition costs	—		452		517
Total		$	3,761	$	4,426	$	3,614

At December 31, 2017 and 2016, the Company has capitalized software costs of $3.8 million and $3.6 million, respectively, and related accumulated depreciation expense of $3.5 million and $3.2 million, respectively, and was presented within other assets on the consolidated statements of condition.

Included in merger and acquisition costs on the consolidated statements of income for the year ended December 31, 2015 was $1.1 million of fixed asset disposal costs incurred as a result of the acquisition of SBM.

The Company did not have any material gains or losses from the sale of premises and equipment for the year ended December 31, 2017, 2016 or 2015.

The Company enters into noncancellable lease arrangements primarily for its office buildings and branches. Certain lease arrangements contain clauses requiring increasing rental payments over the lease term, which may be indexed to an index (commonly the Consumer Price Index) or the increases may be contractually stipulated. Furthermore, many of these lease arrangements provide the Company with the option to renew the lease arrangement after the initial lease term. The Company incurred expenses of $1.5 million, $1.8 million and $1.7 million for the year ended December 31, 2017, 2016 and 2015, respectively, associated with its operating lease arrangements.

The Company has one capital lease for a branch with payments that extend until 2026 at an interest rate of 9.75% per year. The capital lease, recorded in premises and equipment, has a cost basis of $855,000 at December 31, 2017 and 2016 and accumulated depreciation of $502,000 and $459,000 at December 31, 2017 and 2016, respectively. The associated depreciation expense was reported within net occupancy costs on the consolidated statements of income.

In connection with the SBM acquisition, the Company assumed a lease arrangement between SBM wholly-owned subsidiary, The Bank of Maine, and two of its employees. The lease is for a period of five years with an expiration date of December 1, 2019 with two consecutive five year extension periods available at the option of the Company. The lease arrangement contains certain termination clauses whereby the Company has the right to terminate the lease arrangement should the employees be terminated and/or certain mortgage loan production metrics not be met over a consecutive 12 month period.

At December 31, 2017, under current operating and capital lease contracts, the Company had the following schedule of future minimum lease payments:

	Operating		Capital
2018	$	1,429	$	126
2019	1,394		126
2020	888		126
2021	671		130
2022	484		131
Thereafter	1,531		425
Total minimum lease payments	$	6,397	1,064
Less: amount representing interest(1)			273
Present value of net minimum lease payments(2)			$	791

(1) Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate at lease inception.

(2) Reflects the liability reported within short- and long-term borrowings on the consolidated statements of condition. At December 31, 2017 and 2016, the capital lease liability was $791,000 and $858,000, respectively.

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Mortgage Banking

12 Months Ended

Dec. 31, 2017

Transfers and Servicing [Abstract]

Mortgage Banking

Mortgage Banking

Loans Sold

For the year ended December 31, 2017, 2016 and 2015, the Company sold $218.6 million, $232.2 million and $61.2 million, respectively, of residential mortgage loans on the secondary market, which resulted in a net gain on sale of loans (net of costs, including direct and indirect origination costs) of $6.3 million, $6.2 million, and $1.3 million, respectively.

Loans Held for Sale

At December 31, 2017 and 2016, the Company had identified and designated loans with an unpaid principal balance of $8.1 million and $15.1 million, respectively, as held for sale. The Company has elected the fair value option for its loans designated as held for sale, and, at December 31, 2017 and 2016, the unrealized gain (loss) recorded was $37,000 and ($289,000), respectively. The unrealized gain or loss on its loans held for sale portfolio was driven by changes in market interest rates and not due to deteriorated credit quality as this risk is mitigated by the short duration between the time of the loan closed and transfer of the financial assets to the secondary market investor. Included within the Company's mortgage banking income, net on its consolidated statements of income for the year ended December 31, 2017, 2016 and 2015 was the change in unrealized gains (losses) on loans held for sale of $326,000, $(422,000) and $133,000, respectively.

The Company mitigates its interest rate exposure on its loans designated as held for sale through forward delivery commitments with certain approved secondary market investors at the onset of the mortgage origination process, typically on a best-efforts basis. For the year ended December 31, 2017, 2016 and 2015, the Company recorded gains (losses) on its forward delivery commitments of ($136,000), $278,000, and $0, respectively. Refer to Note 18 for further discussion of the Company's forward delivery commitments.

Servicing Assets

At December 31, 2017 and 2016, the Company's unpaid principal balances on its servicing assets were $275.2 million and $332.7 million, respectively.

For the year ended December 31, 2017, 2016 and 2015, the Company recorded servicing fee income for its servicing assets of $1.0 million, $1.1 million and $597,000, respectively, and was presented in mortgage banking income, net on the consolidated statements of income.

The Company's servicing assets, net of a valuation allowance, included in other assets on the consolidated statements of condition at December 31, 2017 and 2016 was $1.0 million and $1.2 million, respectively.

The Company obtains third party valuations of its servicing assets portfolio quarterly. The servicing assets valuation is based on loan level data stratified by note rate of the underlying loans to determine its amortization and fair value. A discounted cash flow model is used to value each servicing asset strata and it incorporates current market assumption commonly used by buyers of these types of mortgage production in U.S. servicing markets. The calculated valuation using the discounted cash flow method is then compared to recent servicing trades on portfolios with similar characteristics in the U.S. The valuation model utilizes a variety of assumptions, the most significant of which are loan prepayment assumptions and the discount rate used to discount future cash flows. At December 31, 2017 and 2016, the prepayment assumption used within the valuation model was 14.0% and 14.6%, respectively, and the discount rate was 11.2% and 7.8%. The estimated effect of a 10% and 20% increase to the prepayment assumption at December 31, 2017 was a decrease of $76,000 and $148,000, respectively, while a 100 and 200 basis points increase to the discount rate assumption was a decrease of $54,000 and $105,000. Other assumptions include, but are not limited to, delinquency rates, foreclosure rates, and loan servicing cost.

The following summarizes servicing assets capitalized and amortized, along with the activity in the related valuation allowance:

	As of and For The Year Ended December 31,
	2017			2016			2015
Servicing Assets:
Balance at beginning of year	$	1,210		$	2,161		$	493
Capitalized servicing right fees upon sale(1)	22			9			294
Acquired in connection with acquisition of SBM, at fair value	—			—			1,608
Amortization charged against mortgage servicing fee income(1)	(430		)	(734		)	(231		)
Valuation adjustment	223			(226		)	(3		)
Balance at end of year	$	1,025		$	1,210		$	2,161
Valuation Allowance:
Balance at beginning of year	$	(230	)	$	(4	)	$	(1	)
(Increase) decrease in impairment reserve(1)	223			(226		)	(3		)
Balance at end of year	$	(7	)	$	(230	)	$	(4	)
Fair value, beginning of year	$	1,701		$	2,947		$	1,447
Fair value, end of year	$	1,766		$	1,701		$	2,947

(1) Reported within mortgage banking income, net on the Company's consolidated statements of income.

Sub-Serviced Loans

Mortgage loans serviced for third party investors, for which the Company acts in a sub-servicer capacity and, therefore, does not have a corresponding servicing asset, are not reported as assets of the Company on its consolidated statements of condition. The unpaid principal balance on mortgage loans serviced for investors at December 31, 2017 and 2016 was $349.7 million and $930.8 million, respectively. Custodial escrow balances maintained in connection with the foregoing loan servicing for investors, and included in demand deposits on the Company's consolidated statements of condition, were $4.2 million and $11.9 million at December 31, 2017 and 2016, respectively. The Company recognized sub-servicing fee income, including related loan fees, for the years ended December 31, 2017, 2016 and 2015 of $12,000, $1.7 million, and $1.2 million. Effective close of business on December 31, 2016, the Company exited a significant sub-servicer relationship.

As part of its agreement to service loans for investors and its own loan portfolio, the Company is required to ensure the good-standing and priority lien position of the collateral for its mortgage loans. In doing so, the Company will advance borrower escrows and incur certain costs that are reimbursable by the borrowers, investors or other means, including mortgage insurance companies and governmental-backed agencies. At December 31, 2017 and 2016, the Company advanced escrow balances of $194,000 and $2.0 million, respectively, and had a receivable of $58,000 and $2.7 million, respectively, for the aforementioned services. At December 31, 2017 and 2016, the Company carried an allowance on the aforementioned receivable of $0 and $829,000, respectively. The Company estimated the allowance on its receivable utilizing historical claim and reimbursement information, as well as information through ongoing negotiations with its investors. The Company has presented its advanced escrows and aforementioned net receivable within other assets on the Company's consolidated statements of condition.

In addition to fees earned for servicing the portfolios of investors, servicer guides impose certain time-lines for resolving delinquent loans through workout efforts or liquidation and impose compensatory fees on the Company if those deadlines are not satisfied other than for reasons beyond our control. The investors also have a contractual right to demand indemnification or loan repurchase for certain servicing breaches. For example, the Company would be required to indemnify the investors for or against failures by the Company to perform its servicing obligations or acts or omissions that involve willful malfeasance, bad faith or gross negligence in the performance of, or reckless disregard of, its duties. The Company records expenses for servicing-related claims and loan repurchases when it is probable that such claims or repurchases will be made and the amounts are reasonably estimable.

Servicer and Sub-Servicer Net Worth and Liquidity Requirements

The Bank, as a servicer and sub-servicer of loans, must maintain certain net worth and liquidity requirements for certain secondary market investors, including the U.S. Department of Housing and Urban Development ("HUD"), the Federal National Mortgage Association ("FNMA") and the Federal Home Loan Mortgage Corporation ("FHLMC").

The Bank is required to maintain a minimum net worth of $1.0 million plus 1.0% of total Federal Housing Authority ("FHA") loans exceeding $25.0 million ("minimum net worth required") and maintain liquid assets equal to at least 20.0% of its minimum net worth required.

The Bank is required to maintain a minimum net worth of $2.5 million plus 25 basis points of the unpaid principal balance of serviced loans and must meet the minimum regulatory capital requirement to be classified as "well capitalized" by both FNMA and FHLMC.

Should the Bank fail to maintain the net worth and liquidity requirements above, the secondary market investor may take remedial action and the Company may lose the right to service the loans, which may result in an impairment of its servicing assets and/or loss of revenue but would not materially affect the Company's consolidated financial statements.

At December 31, 2017 and 2016, the Bank met all of the aforementioned minimum net worth, regulatory capital, and liquidity requirements. Refer to Note 13 for further details of the Company and Bank's regulatory capital requirements at December 31, 2017 and 2016.

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Deposits

12 Months Ended

Dec. 31, 2017

Deposits [Abstract]

Deposits

Deposits

The following is a summary of scheduled maturities of CDs as of December 31, 2017:

	Retail		Brokered		Total
2018	$	239,936	$	—	$	239,936
2019	110,867		—		110,867
2020	62,944		7,000		69,944
2021	32,208		—		32,208
2022	19,816		—		19,816
Thereafter	9,239		—		9,239
Total	$	475,010	$	7,000	$	482,010

CDs issued in amounts that meet or exceed the FDIC insurance limit of $250,000 totaled $137.1 million and $104.5 million at December 31, 2017 and 2016, respectively.

At December 31, 2017 and 2016, the Company, in the normal course of business, had deposits from certain officers, directors, and their associated companies totaling $14.9 million and $14.4 million, respectively.

The Company has pledged assets as collateral covering certain deposits in the amount of $434.6 million and $377.9 million at December 31, 2017 and 2016, respectively.

The amount of overdraft deposits that were reclassified as loans at December 31, 2017 and 2016 was $897,000 and $986,000, respectively.

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Borrowings

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Borrowings

Borrowings

The following table summarizes the Company's short term and long term borrowings, and subordinated debentures as presented on the consolidated statements of condition for the periods indicated:

	December 31, 2017				Contractual Maturity												December 31, 2016
	Outstanding Balance		Weighted Average Rate		2018		2019		2020		2021		2022		Thereafter		Outstanding Balance		Weighted Average Rate
Short-Term Borrowings:
FHLBB borrowings	$	250,000			$	250,000	$	—	$	—	$	—	$	—	$	—	$	210,000
Customer repurchase agreements	244,646				244,646		—		—		—		—		—		225,605
FHLBB and correspondent bank overnight borrowings	47,150				47,150		—		—		—		—		—		89,450
Wholesale repurchase agreements	—				—		—		—		—		—		—		5,007
Capital lease obligation	71				71		—		—		—		—		—		67
Total short-term borrowings	$	541,867	1.10	%	$	541,867	$	—	$	—	$	—	$	—	$	—	$	530,129	0.74	%
Long-Term Borrowings:
FHLBB borrowings	$	10,000	1.87	%	$	—	$	—	$	10,000	$	—	$	—	$	—	$	10,000	1.87	%
Capital lease obligation	720		4.18	%	—		76		81		90		98		375		791		4.31	%
Total long-term borrowings	$	10,720	2.03	%	$	—	$	76	$	10,081	$	90	$	98	$	375	$	10,791	2.05	%
Subordinated Debentures:
Subordinated debentures(1)	$	14,580	5.50	%	$	—	$	—	$	—	$	—	$	—	$	14,580	$	14,526	5.50	%
CCTA	36,083		5.48	%	—		—		—		—		—		36,083		36,083		5.50	%
UBCT	8,248		6.75	%	—		—		—		—		—		8,248		8,146		6.85	%
Total subordinated debentures	$	58,911	5.66	%	$	—	$	—	$	—	$	—	$	—	$	58,911	$	58,755	5.69	%

(1) Presented net of debt issuance costs of $420,000 and $474,000 at December 31, 2017 and 2016, respectively.

Short-Term Borrowings

Short-term borrowings consist of customer repurchase agreements, FHLBB advances due in less than 90 days, FHLBB and correspondent bank overnight borrowings, and other short-term borrowings due within one year. The Bank had an available line of credit with the FHLBB of $9.9 million at December 31, 2017 and 2016. This line of credit serves as overdraft protection should the Company overdraw its account with the FHLBB. The interest rate for this line of credit is set daily by the FHLBB. The Company had no outstanding balance on the line of credit with the FHLBB at December 31, 2017 or 2016.

Long-Term Borrowings

Long-term borrowings represent securities sold under repurchase agreements with major brokerage firms and notes payable with maturity dates over one year. Both wholesale and retail repurchase agreements are secured by mortgage-backed securities and securities of government sponsored enterprises.

At December 31, 2017, the Company has the following lines of credit available to it, for which it had no outstanding balances:

• The Company has an unsecured $10.0 million line of credit with PNC Bank that has a maturity date of December 20, 2018 for which the interest rate is LIBOR-based and is set daily by PNC Bank.

• The Company, through the Bank, has an unsecured $50.0 million line of credit with PNC Bank for which the interest rate is set daily by PNC Bank.

• The Company, through the Bank, has a secured line of credit of $99.8 million through the FRB's Discount Window for which the interest rate is set by the FRB daily. At December 31, 2017, the Bank pledged commercial loans with a carrying value of $144.4 million and investment securities of $31,000.

FHLBB Borrowings

At December 31, 2017, the terms of the Company's outstanding FHLBB borrowings were as follows:

Balance Sheet Classification	Outstanding Balance		Maturity Date	Interest Rate Range	Next Call Date	Call Amount
Short-Term Borrowings	$	200,000	January 2018	1.45% - 1.63%	N/A	$	—
Short-Term Borrowings	$	50,000	February 2018	1.54%	N/A	$	—
Long-Term Borrowings	$	10,000	April 2020	1.87%	N/A	$	—

FHLBB borrowings are collateralized by a blanket lien on qualified collateral consisting primarily of loans with first mortgages secured by one- to four-family properties, certain commercial real estate loans, certain pledged investment securities and other qualified assets. The carrying value of residential real estate and commercial loans pledged as collateral was $1.1 billion at December 31, 2017 and 2016. The carrying value of securities pledged as collateral at the FHLBB was $215,000 and $400,000 at December 31, 2017 and 2016, respectively.

Subordinated Debentures

The Company issued $15.0 million of subordinated debt on October 8, 2015, which qualifies as Tier II regulatory capital. The interest rate on the subordinated debt is 5.50% per annum, fixed for the ten-year term and payable semi-annually on April 15 and October 15 each year. The Company can redeem the subordinated debt at par starting on October 15, 2020 plus accrued and unpaid interest, or earlier if (i) they no longer qualify as Tier II capital for regulatory capital purposes; (ii) a change in law that prevents the Company from deducting interest payable for U.S. federal income tax purposes, or (iii) the Company is required to register as an investment company pursuant to the Investment Company Act of 1940. The subordinated debt is schedule to mature on October 15, 2025.

The Company incurred issuance costs of $536,000 associated with this debt issuance. The Company capitalized these costs and they have been presented within subordinated debentures on the consolidated statements of condition. The Company will amortize the issuance costs over the ten-year term of the subordinated debt. The amortization costs incurred for the year ended December 31, 2017 and 2016 associated with the debt issuance was $54,000, and was recognized as an increase to interest expense within the consolidated statements of income.

In April 2006, the Company formed CCTA, which issued and sold trust preferred securities to the public. The Company received $36.1 million from the issuance of the trust preferred securities in return for junior subordinated debentures issued by the Company to CCTA. The Company owns all of the $1.1 million of outstanding common securities of CCTA. The interest rate of the trust preferred securities was fixed at 6.71% through June 2011 and now floats at the 3 month LIBOR plus 140 basis points. The proceeds from the offering were used to repurchase Company common stock under the tender offer completed in May 2006. The trust preferred securities, which pay interest quarterly at the same rate as the junior subordinated debentures held by CCTA, are mandatorily redeemable on June 30, 2036, or may be redeemed by CCTA at par any time on or after June 30, 2011.

In connection with the acquisition of Union Bankshares Company in 2008, the Company assumed $8.0 million of trust preferred securities, held through a Delaware trust affiliate, UBCT. In 2006, Union Bankshares Company issued an aggregate principal amount of $8.2 million of 30-year junior subordinated deferrable interest debt securities to UBCT. The Company owns all of the $248,000 of outstanding common securities of UBCT. The debt securities obligate the Company to pay interest on their principal sum quarterly in arrears on January 7, April 7, July 7, and October 7 of each year. The interest rate of the trust preferred securities until April 7, 2011 was a blended rate equal to the sum of (1) the product of 50% times the average three-month LIBOR plus 1.42%, plus (2) the product of 50% times 6.4725%. The rate is now the average three-month LIBOR plus 1.42%. The debt securities mature on April 7, 2036, but may be redeemed by the Company, in whole or in part, beginning on April 7, 2011, on any interest payment date. The debt securities may also be redeemed by the Company in whole or in part, within 90 days of the occurrence of certain special redemption events as defined in the Indenture.

CCTA and UBCT are Delaware statutory trusts created for the sole purpose of issuing trust preferred securities and investing the proceeds in junior subordinated debentures of the Company. The junior subordinated debentures are the sole assets of the trusts. The Company is the owner of all of the common securities of CCTA and UBCT and fully and unconditionally guarantees each trust’s securities obligations. In accordance with GAAP, CCTA and UBCT are treated as unconsolidated subsidiaries. The common stock investment in the statutory trusts is included in other assets on the consolidated statements of condition. At December 31, 2017, $43.0 million of the trust preferred securities were included in the Company’s total Tier I capital and amounted to 12.0% of Tier I capital of the Company.

The Company has a notional amount of $43.0 million in interest rate swap agreements on its junior subordinated debentures. Further discussion on the terms and accounting for the interest rate swap agreements is included within Note 18 of the consolidated financial statements.

Interest expense on the subordinated debentures, including the effective portion of the associated interest rate swaps on these debt instruments reclassified from OCI into earnings, totaled $3.4 million, $3.4 million and $2.7 million for the year ended December 31, 2017, 2016 and 2015, respectively. Refer to Note 18 of the consolidated financial statements for information pertaining to the reclassification of OCI into earnings on the interest rate swaps.

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Repurchase Agreements

12 Months Ended

Dec. 31, 2017

Banking and Thrift [Abstract]

Repurchase Agreements

Repurchase Agreements

The Company can raise additional liquidity by entering into repurchase agreements at its discretion. In a security repurchase agreement transaction, the Company will generally sell a security, agreeing to repurchase either the same or substantially identical security on a specified later date, at a greater price than the original sales price. The difference between the sale price and purchase price is the cost of the proceeds, which is recorded as interest expense on the consolidated statement of income. The securities underlying the agreements are delivered to counterparties as security for the repurchase obligations. Since the securities are treated as collateral and the agreement does not qualify for a full transfer of effective control, the transactions does not meet the criteria to be classified as a sale, and is therefore considered a secured borrowing transaction for accounting purposes. Payments on such borrowings are interest only until the scheduled repurchase date. In a repurchase agreement the Company is subject to the risk that the purchaser may default at maturity and not return the securities underlying the agreements. In order to minimize this potential risk, the Company either deals with established firms when entering into these transactions or with customers whose agreements stipulate that the securities underlying the agreement are not delivered to the customer and instead are held in segregated safekeeping accounts by the Company's safekeeping agents.

The tables below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings and types of collateral at December 31, 2017 and 2016:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
December 31, 2017
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	630	$	—	$	—	$	—	$	630
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	98,460		—		—		—		98,460
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	145,556		—		—		—		145,556
Total Customer Repurchase Agreements	244,646		—		—		—		244,646
Total Repurchase Agreements(1)	$	244,646	$	—	$	—	$	—	$	244,646
December 31, 2016
Customer Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	117,784	$	—	$	—	$	—	$	117,784
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	107,821		—		—		—		107,821
Total Customer Repurchase Agreements	225,605		—		—		—		225,605
Wholesale Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	—		—		3,715		—		3,715
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	—		—		1,292		—		1,292
Total Wholesale Repurchase Agreements	—		—		5,007		—		5,007
Total Repurchase Agreements(1)	$	225,605	$	—	$	5,007	$	—	$	230,612

(1) Presented within short-term borrowings on the consolidated statements of condition.

Certain customers held CDs totaling $920,000 and $917,000 with the Bank at December 31, 2017 and 2016, respectively, that were collateralized by CMO and MBS securities that were overnight repurchase agreements.

Certain counterparties monitor collateral, and may request additional collateral to be posted from time to time.

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Income Taxes

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The current and deferred components of income tax expense on the consolidated statements of income were as follows:

	For The Year Ended December 31,
	2017			2016			2015
Current:
Federal	$	14,529		$	17,854		$	7,956
State	1,289			930			71
	15,818			18,784			8,027
Deferred:
Change in federal corporate income tax rate(1)	14,263			—			—
Federal	4,117			(1,258		)	1,356
State	(320		)	(54		)	524
	18,060			(1,312		)	1,880
Income tax expense	$	33,878		$	17,472		$	9,907

(1) On December 22, 2017, the Tax Act was enacted, reducing the U.S. federal corporate income tax rate from 35.0% to 21.0%. ASC Topic 740, Accounting for Income Taxes (“ASC 740”), requires companies to recognize the effect of tax law changes in the period of enactment even though the effective date for most provisions of the Tax Act was January 1, 2018. As of December 31, 2017, the Company has completed its accounting for the tax effects of the Tax Act, which resulted in a reduction to net deferred tax assets and a corresponding charge to income tax expense of $14.3 million.

The income tax expense differs from the amount computed by applying the statutory federal income tax rate as a result of the following:

	For The Year Ended December 31,
	2017			2016			2015
Computed tax expense	$	21,824		$	20,139		$	10,801
Increase (reduction) in income taxes resulting from:
Change in federal corporate income tax rate	14,263			—			—
Tax exempt income	(1,291		)	(1,312		)	(1,092		)
Income from life insurance	(829		)	(908		)	(588		)
State taxes, net of federal benefit	630			565			373
Share-based awards(1)	(390		)	(701		)	—
Low income housing credits	(366		)	(376		)	(359		)
Non-deductible acquisition-related costs	—			—			467
Other	37			65			305
Income tax expense	$	33,878		$	17,472		$	9,907
Income before income taxes	$	62,354		$	57,539		$	30,859
Effective tax rate	54.3		%	30.4		%	32.1		%

(1) The Company adopted the provisions of ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, in calendar year 2016. Prior to adoption, it accounted for its windfall tax benefits or shortfalls generated upon exercise of a non-qualified stock option or a disqualifying incentive stock option, or upon vesting of its restricted shares through shareholders' equity (or as income tax expense to the extent the Company did not have a windfall tax benefit surplus). Upon adoption, the Company now accounts for its windfall tax benefits and shortfalls generated within income tax expense on the consolidated statements of income as a discrete period item in the quarter generated.

Temporary differences between the financial statements carrying amounts and the tax bases of assets and liabilities gave rise to the following deferred tax assets and liabilities:

	December 31,
	2017(1)					2016(2)
	Asset		Liability			Asset		Liability
Net operating loss and tax credit carryforward	$	12,078	$	—		$	20,977	$	—
Allowance for loan losses	5,201		—			8,094		—
Pension and other benefits	3,363		—			5,141		—
Net unrealized losses on AFS securities	2,821		—			3,227		—
Net unrealized losses on derivative instruments	1,623		—			3,066		—
Deferred compensation and benefits	1,199		—			1,791		—
Net unrealized losses on postretirement plans	1,092		—			1,147		—
Purchase accounting and deposit premium	461		—			1,430		—
Depreciation	—		(2,857		)	—		(4,520		)
Deferred loan origination fees	—		(1,510		)	—		(2,046		)
Other	—		(695		)	956		—
	27,838		(5,062		)	45,829		(6,566		)
Valuation allowance on deferred tax assets			—					—
Net deferred tax assets			$	22,776				$	39,263

(1) At December 31, 2017, the Company's deferred tax assets and liabilities were calculated using a 21.5% deferred tax rate.

(2) At December 31, 2016, the Company's deferred tax assets and liabilities were calculated using a 35.0% deferred tax rate.

In connection with the acquisition of SBM on October 16, 2016, the Company acquired certain net operating losses and tax credit carryforwards as of the acquisition date, including federal net operating losses of $71.2 million and State of Maine net operating losses of $213,000. The Company determined it would not be able to utilize $6.8 million of the acquired federal net operating losses and wrote-off this amount within purchase accounting. Due to Internal Revenue Code of 1986, as amended, Section 382(g) limitations, the Company's use of the federal net operating losses acquired is limited to $3.9 million annually (and $803,000 for fiscal year 2015), which was determined using the applicable federal rate and the fair value of consideration paid for the acquisition at the acquisition date. The acquired federal net operating losses will expire between 2030 and 2034. The Company has assessed the need for a valuation allowance on the acquired federal net operating losses and determined that there was a high likelihood that it will be able to utilize all of the acquired allowable federal net operating losses prior to expiration as the Company has a history of generating taxable income well in excess of the limitation. As such, no valuation allowance has been established on its acquired federal net operating losses or tax credit carryforwards as of December 31, 2017 or 2016.

As of December 31, 2017, the Company's federal income tax returns for the year ended December 31, 2016 and 2015 were open to audit by federal authorities and state income tax returns for the year ended December 31, 2016, 2015 and 2014 were open to audit by state authorities. During the year ended December 31, 2017, the IRS completed its examination of the Company's 2013 and 2014 federal income tax returns, which resulted in no material changes to the Company's consolidated financial statements.

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Shareholders' Equity

12 Months Ended

Dec. 31, 2017

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

Regulatory Capital Requirements

The Company and Bank are subject to various regulatory capital requirements administered by the FRB and the OCC. Failure to meet minimum capital requirements can result in mandatory and possible additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements.

The Company and the Bank are required to maintain certain levels of capital based on risk-adjusted assets. These capital requirements represent quantitative measures of their assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The Company and the Bank's capital classification is also subject to qualitative judgments by our regulators about components, risk weightings and other factors. The quantitative measures established to ensure capital adequacy require us to maintain minimum amounts and ratios of total, Tier I capital, and common equity Tier I to risk-weighted assets, and of Tier I capital to average assets, or leverage ratio. These guidelines apply to the Company on a consolidated basis.

Under the current guidelines, banking organizations must have a minimum total risk-based capital ratio of 8.0%, a minimum Tier I risk-based capital ratio of 6.0%, a minimum common equity Tier I risk-based capital ratio of 4.5%, and a minimum leverage ratio of 4.0% in order to be "adequately capitalized." In addition to these requirements, banking organizations must maintain a 2.5% capital conservation buffer consisting of common Tier I equity, subject to a transition schedule with a full phase-in by 2019. Effective January 1, 2017, the Company and the Bank were required to establish a capital conservation buffer of 1.25%, increasing the minimum required total risk-based capital, Tier I risk-based and common equity Tier I capital to risk-weighted assets they must maintain to avoid limits on capital distributions and certain bonus payments to executive officers and similar employees.

The Company and Bank's risk-based capital ratios exceeded regulatory guidelines at December 31, 2017 and 2016, and, specifically, the Bank was "well capitalized" under prompt correct action provisions for each period. There were no conditions or events that occurred subsequent to December 31, 2017 that would change the Company or Bank's regulatory capital categorization. The following table presents the Company and Bank's regulatory capital ratios at the periods indicated:

	December 31, 2017				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions		December 31, 2016				Minimum Regulatory Capital Required For Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions
	Amount		Ratio						Amount		Ratio
Camden National Corporation:
Total risk-based capital ratio	$	396,451	14.14	%	9.25	%	N/A		$	368,856	14.04	%	8.63	%	N/A
Tier I risk-based capital ratio	357,261		12.74	%	7.25	%	N/A		330,729		12.59	%	6.63	%	N/A
Common equity Tier I risk-based capital ratio	316,677		11.30	%	5.75	%	N/A		296,120		11.27	%	5.13	%	N/A
Tier I leverage capital ratio	357,261		9.07	%	4.00	%	N/A		330,729		8.83	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	369,540	13.18	%	9.25	%	10.00	%	$	340,908	12.92	%	8.63	%	10.00	%
Tier I risk-based capital ratio	345,350		12.32	%	7.25	%	8.00	%	317,782		12.05	%	6.63	%	8.00	%
Common equity Tier I risk-based capital ratio	345,350		12.32	%	5.75	%	6.50	%	317,782		12.05	%	5.13	%	6.50	%
Tier I leverage capital ratio	345,350		8.80	%	4.00	%	5.00	%	317,782		8.54	%	4.00	%	5.00	%

On October 8, 2015, the Company issued $15.0 million of 10 year subordinated debentures bearing interest at an annual rate of 5.50%. In addition, $43.0 million of junior subordinated debentures were issued in connection with the issuance of trust preferred securities in 2006 and 2008. Although the subordinated debentures and the junior subordinated debentures are recorded as liabilities on the Company's consolidated statements of condition, the Company is permitted, in accordance with regulatory guidelines, to include, subject to certain limits, each within its calculation of risk-based capital. At December 31, 2017 and 2016, $15.0 million of subordinated debentures were included as Tier II capital and were included in the calculation of the Company's total risk-based capital, and, at December 31, 2017 and December 31, 2016, $43.0 million of the junior subordinated debentures were included in Tier I and total risk-based capital for the Company.

The Company and Bank's regulatory capital and risk-weighted assets fluctuate due to normal business, including profits and losses generated by the Company and Bank as well as changes to their asset mix. Of particular significance are changes within the Company and Bank's loan portfolio mix due to the difference in regulatory risk-weighting differences between retail and commercial loans. Furthermore, the Company and Bank's regulatory capital and risk-weighted assets are subject to change due to changes in GAAP and regulatory capital standards. The Company and Bank proactively monitor their regulatory capital and risk-weighted assets, and the impact of changes to their asset mix, and impact of proposed and pending changes as a result of new and/or amended GAAP standards and regulatory changes.

Dividends

The primary source of funds available to the Company for the payment of dividends to its shareholders is dividends paid to the Company by its subsidiary, the Bank. The Bank is subject to certain requirements imposed by federal banking laws and regulations. These requirements, among other things, establish minimum levels of capital and restrict the amount of dividends that a bank subsidiary may distribute. Under regulations prescribed by the OCC, without prior OCC approval, a bank subsidiary may not declare dividends in any year in excess of the bank’s (i) net income for the current year, (ii) plus its retained net income for the prior two years.

For the year ended December 31, 2017, 2016, and 2015, the Bank declared dividends for payment to the Company in the amount of $16.8 million, $16.0 million, and $39.2 million which included a $30.0 million special dividend that was paid in connection with the acquisition of SBM, respectively. For the year ended December 31, 2017, 2016 and 2015, the Company declared $14.6 million, $12.9 million and $10.6 million, respectively, in dividends payable to its shareholders.

Common Stock Split

On August 30, 2016, the Company's Board of Directors declared a three-for-two stock split, effected in the form of a stock dividend, on the Company's common stock. Each shareholder of record on September 15, 2016, received one additional share of common stock for every two shares of common stock owned. The stock was issued September 30, 2016.

The Company paid shareholders cash in lieu of fractional shares of common stock in connection with the split, at a price of $31.75 per share, the closing price of the Company’s common stock on September 14, 2016. The total cash paid for fractional shares was $5,000, and was accounted for as a reduction of capital stock.

Common Stock Repurchase

On September 24, 2013, the Company's Board of Directors authorized the 2013 Repurchase Plan. The 2013 Repurchase Plan allows for the repurchase of up to 375,000 shares of the Company’s outstanding common stock. This program is expected to continue until the authorized number of shares is repurchased, or the Company’s Board of Directors terminates the program. As of December 31, 2017, the Company had repurchased 374,250 shares at a weighted-average price of $26.55, or 99.8% of the program’s total allotment. The Company did not repurchase any of its outstanding common stock for the year ended December 31, 2017.

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Earnings per Share

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Earnings per Share

EPS

The following is an analysis of basic and diluted EPS, reflecting the application of the two-class method, as described below:

	For The Year Ended December 31,
	2017			2016			2015
Net income	$	28,476		$	40,067		$	20,952
Dividends and undistributed earnings allocated to participating securities(1)	(118		)	(189		)	(59		)
Net income available to common shareholders	$	28,358		$	39,878		$	20,893
Weighted-average common shares outstanding for basic EPS	15,509,665			15,422,160			12,031,294
Dilutive effect of stock-based awards(2)	78,682			82,079			43,285
Weighted-average common and potential common shares for diluted EPS	15,588,347			15,504,239			12,074,579
Earnings per common share:
Basic EPS	$	1.83		$	2.59		$	1.73
Diluted EPS	$	1.82		$	2.57		$	1.73
Awards excluded from the calculation of diluted EPS(3):
Stock options	—			—			19,875

(1) Represents dividends paid and undistributed earnings allocated to nonvested stock-based awards that contain non-forfeitable rights to dividends.

(2) Represents the effect of the assumed exercise of stock options, and vesting of restricted shares and restricted stock units, and issuance of LTIP awards that have met the performance criteria, utilizing the treasury stock method.

(3) Represents stock-based awards not included in the computation of potential common shares for purposes of calculating diluted EPS as the exercise prices were greater than the average market price of the Company's common stock, and, therefore, are considered anti-dilutive.

Nonvested stock-based payment awards that contain non-forfeitable rights to dividends are participating securities and are included in the computation of EPS pursuant to the two-class method. The two-class method is an earnings allocation formula that determines EPS for each class of common stock and participating security according to dividends declared (or accumulated) and participation rights in undistributed earnings. Certain of the Company’s nonvested stock-based awards qualify as participating securities.

Net income is allocated between the common stock and participating securities pursuant to the two-class method. Basic EPS is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period, excluding participating nonvested stock-based awards.

Diluted EPS is computed in a similar manner, except that the denominator includes the number of additional common shares that would have been outstanding if potentially dilutive common shares were issued using the treasury stock method.

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Stock-Based Compensation Plans

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Plans

Stock-Based Compensation Plans

Stock-Based Compensation

On April 29, 2003 and May 1, 2012, the shareholders of the Company approved the 2003 Plan and 2012 Plan, respectively. The maximum number of shares of stock reserved and available for issuance under each the 2003 Plan and 2012 Plan is 1.2 million shares. As shares or units are vested or options are exercised, new shares are issued out of either the 2003 or 2012 Plan. Awards may be granted in the form of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, performance shares and dividend equivalent rights, or any combination of the preceding, and the exercise price shall not be less than 100% of the fair market value on the date of grant in the case of incentive stock options, or 85% of the fair market value on the date of grant in the case of non-qualified stock options. No stock option is exercisable more than ten years after the date the stock option is granted. The exercise price of all options granted equaled the market price of the Company's stock on the date of grant, except for the non-qualified stock options issued in conjunction with the acquisition of SBM. Refer to Note 2 for additional details.

The amount of cash used to settle stock-based compensation transactions for the year ended December 31, 2017, 2016 and 2015 was $902,000, $373,000 and $157,000, respectively.

Stock Option Awards

Stock options granted under the 2003 Plan and the 2012 Plan have been both incentive stock options and non-qualified stock options. All incentive stock options and non-qualified stock options granted vest pro rata over a five year period and have a contractual life of ten years.

On the date of each grant, the fair value of each award is derived using the Black-Scholes option pricing model based on assumptions made by the Company as follows:

• Dividend yield is based on the dividend rate of the Company’s stock at the date of grant.

• Risk-free interest rate is based on the U.S. Treasury bond rate with a term equaling the expected life of the granted options.

• Expected volatility is based on the historical volatility of the Company’s stock price calculated over the expected life of the option.

• Expected life represents the period of time that granted options are expected to be outstanding based on historical trends.

For the year ended December 31, 2017, 2016 and 2015, the Company issued stock options with a grant-date fair value of $0, $16,000 and $22,000, respectively. The following table presents the option pricing assumptions and the estimated fair value of the options using these assumptions for grants made for the year ended:

	December 31,
	2017			2016			2015
Weighted-average dividend yield	—		%	3.12		%	3.01		%
Weighted-average risk-free interest rate	—		%	1.52		%	1.50		%
Weighted-average expected volatility	—		%	29.64		%	31.85		%
Weighted-average expected life (in years)	0.0			5.3			5.3
Weighted-average fair value of options granted	$	—		$	5.17		$	5.87

Compensation expense is recognized on a straight-line basis over the option vesting period. For the year ended December 31, 2017, 2016 and 2015, the compensation expense recognized for stock options was $20,000, $30,000 and $51,000, respectively. The Company does not receive any tax benefit on its issuance of incentive stock options, unless upon exercise a disqualifying disposition is made. The total tax benefit to the Company upon exercise of incentive stock options for the year ended December 31, 2017, 2016 and 2015 was $21,000, $36,000, and $59,000, respectively. Additionally, for the year ended December 31, 2017, 2016 and 2015, the Company received a tax benefit upon the exercise of non-qualified stock options that were issued as consideration in the acquisition of SBM, of $21,000, $378,000 and $0, respectively.

Unrecognized compensation expense for nonvested stock options totaled $41,000 at December 31, 2017 and is expected to be recognized over the remaining weighted-average vesting period of 2.3 years. The total intrinsic value of options exercised for the year ended December 31, 2017, 2016 and 2015 was $268,000, $2.5 million, and $573,000, respectively.

Stock option activity for the year ended December 31, 2017 was as follows:

	Number of Options		Weighted-Average Exercise Price per Option		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Options outstanding at January 1, 2017	58,743		$	20.38
Granted	—		—
Exercised	(11,841	)	17.50
Forfeited	(2,400	)	26.23
Expired	(1,425	)	23.11
Options outstanding at December 31, 2017	43,077		$	21.00	3.45	$	910
Options exercisable at December 31, 2017	39,627		$	20.58	3.11	$	854

A summary of the status of the Company’s nonvested stock options as of December 31, 2017 and changes during the year then ended was as follows:

	Options		Weighted-Average Grant Date Fair Value per Option
Nonvested at January 1, 2017	9,450		$	6.59
Granted	—		—
Vested	(3,600	)	7.80
Forfeited	(2,400	)	5.48
Nonvested at December 31, 2017	3,450		$	6.11

For the year ended December 31, 2017, 2016 and 2015 the Company received cash from the exercise of stock options of $98,000, $1.3 million and $736,000 respectively.

Restricted Stock Units

For the year ended December 31, 2017, 2016 and 2015, the Company issued restricted stock units with a grant-date fair value of $808,000, $0 and $0, respectively, to certain employees. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted. Restricted stock units vest pro-rata over the requisite service period, which is typically three to five years, and may contain certain performance-based conditions. Restricted stock units issued do not participate in dividends and recipients are not entitled to vote these restricted units until they vest.

Compensation expense and the related income tax benefit recognized in connection with the restricted stock units was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	124	$	—	$	—
Income tax benefit	27		—		—
Fair value of grants vested	—		—		—

Restricted stock unit activity for the year ended December 31, 2017 was as follows:

	Number of Units		Weighted-Average Grant Date Fair Value per Unit		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	—		$	—
Granted	18,762		43.05
Vested	—		—
Forfeited	(1,285	)	43.11
Nonvested at December 31, 2017	17,477		$	43.04	4.6	$	736	$	620

Restricted Stock Awards

For the year ended December 31, 2017, 2016 and 2015, the Company issued restricted stock awards with a grant-date fair value of $686,000, $925,000 and $1.0 million, respectively, to certain directors and employees. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted. Restricted stock awards vest pro-rata over the requisite service period, which is typically three to five years, with the exception of awards issued to Company directors that typically vest immediately, and may contain certain performance-based conditions. Nonvested restricted stock awards participate in dividends and recipients are entitled to vote these restricted shares during the vesting period.

Compensation expense and the related income tax benefit recognized in connection with the restricted stock awards was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	762	$	703	$	327
Income tax benefit	164		246		114
Fair value of grants vested	702		603		341

Restricted stock award activity for the year ended December 31, 2017 is as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	47,518		$	28.16
Granted	16,185		42.39
Vested	(22,553	)	31.14
Forfeited	(4,825	)	28.93
Nonvested at December 31, 2017	36,325		$	32.56	2.2	$	1,530	$	787

MSPP

For the year ended December 31, 2017, 2016 and 2015, the Company issued MSPP awards with a grant-date fair value of $111,000, $128,000 and $108,000, respectively, to certain employees. The Company offers the MSPP to provide an opportunity for certain employees to receive restricted shares of the Company’s common stock in lieu of their annual incentive bonus. Restricted shares issued under the MSPP are granted at a discount of one-third of the fair market value of the stock on the date of grant and cliff vests two years after the grant date. Should an employee forfeit his or her nonvested MSPP awards, the Company will return the lesser of the strike price paid by the employee or the fair value of the nonvested awards as of the date forfeited. Restricted stock issued under the MSPP to certain employees participate in dividends and are entitled to vote these restricted shares during the vesting period.

Compensation expense and the related income tax benefit recognized in connection with the MSPP awards was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	97	$	102	$	66
Income tax benefit	21		36		23
Fair value of grants vested	91		57		92

MSPP award activity for the year ended December 31, 2017 was as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	26,699		$	7.85
Granted	8,088		13.73
Vested	(11,777	)	7.73
Forfeited	(2,791	)	11.49
Nonvested at December 31, 2017	20,219		$	9.77	1.0	$	431	$	54

For the year ended December 31, 2017, 2016 and 2015 the Company received cash from the issuance of restricted shares under the MSPP of $180,000, $241,000 and $220,000 respectively. At December 31, 2017 and 2016, $421,000 and $454,000 of the MSPP cash received was included in accrued interest and other liabilities in the consolidated statements of condition.

LTIP

The LTIP is intended to attract and retain executives who will contribute to the Company’s future success. The long-term performance period is a period of three consecutive years beginning on January 1 of the first year and ending on December 31 of the third year. Awards are based upon either: (i) the attainment of certain performance targets on specific performance measures selected by the Compensation Committee and approved by the Board of Directors; or (ii) 50% weighted on the attainment of certain performance targets on specific performance measures selected by the Compensation Committee and approved by the Board of Directors and 50% weighted on meeting the requisite service period. The performance-based share units granted will vest only if specific performance measures, as defined under the LTIP, are achieved. Failure to achieve the specific performance measures will result in all or a portion of the shares being forfeited. The service-based share units granted vest annually pro-rata over the three year period. For the year ended December 31, 2017, 2016 and 2015, the Company issued restricted stock awards as part of the LTIP to certain executives with a grant-date fair value of $697,000, $502,000 and $0, respectively. For the year ended December 31, 2017, 2016 and 2015, the Company issued performance-based stock awards with a grant-date fair value of $697,000, $502,000 and $963,000, respectively. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted.

Compensation expense recognized for the LTIP's restricted stock awards was presented within "—Restricted Stock Awards^" above. Compensation expense for the LTIP's performance-based awards was presented in the following table:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense(1)	$	370	$	1,080	$	330
Related income tax benefit	80		378		116
Fair value of grants vested	843		725		412

LTIP restricted stock award activity for the year ended December 31, 207 was presented within "—Restricted Stock Awards^" above. LTIP performance-based award activity for the year ended December 31, 2017 was as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	52,737		$	27.01
Granted	16,830		41.39
Vested	(32,323	)	26.09
Forfeited	(5,621	)	26.97
Nonvested at December 31, 2017	31,623		$	35.60	1.7	$	1,332	$	291

DCRP

The DCRP is an unfunded deferred compensation plan for the benefit of certain Company executives. The Company’s Compensation Committee determines eligibility in the DCRP and annually, participants will receive a credit to an account administered by the Company of 10% of each participant’s annual base salary and bonus for the prior performance period. Annual credits to a participant’s account will be denominated in deferred stock awards (the right to receive a share of common stock of the Company upon the satisfaction of certain restrictions) based on the fair market value of the common stock of the Company on the date of grant. Vesting occurs ratably from the date of participation until the participant reaches the age of 65, at which time the participant is 100% vested. Subsequent to December 31, 2017, the DCRP was amended providing the ability to tailor vesting terms for new participants. Upon retirement or termination of employment, the participant will receive shares of common stock equal to the Deferred Stock Awards in the account multiplied by the vested percentage, reduced by the amount to be withheld for income taxes; unvested awards will be forfeited. For the year ended December 31, 2017, 2016 and 2015, the Company issued DCRP awards with a grant-date fair value of $118,000, $111,000 and $93,000, respectively. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted.

Compensation expense recognized in connection with the DCRP was presented in the following table:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	97	$	81	$	62
Related income tax benefit	21		28		22
Fair value of grants vested	90		75		59

DCRP award activity for the year ended December 31, 2017 was as follows:

	Number of Deferred Stock Awards		Weighted-Average Grant Date Fair Value per Award		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	14,244		$	23.65
Granted	2,772		42.66
Vested	(2,776	)	32.50
Forfeited	(4,192	)	25.88
Nonvested at December 31, 2017	10,048		$	25.52	9.2	$	423	$	229

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans

Employee Benefit Plans

401(k)/Profit Sharing Plan

The Company has a 401(k)/profit sharing plan and the majority of employees participate in the plan. Employees may contribute pre-tax contributions to the 401(k)/profit sharing plan up to the maximum amount allowed by federal tax laws. The Company makes matching contributions of up to 4% of an employee’s eligible compensation. The Company, at its discretion, may make additional matching and profit sharing contributions. For the year ended December 31, 2017, 2016 and 2015, these additional contributions totaled 3% of employee eligible compensation. For the year ended December 31, 2017, 2016 and 2015, expenses under the 401(k)/profit sharing plan were $2.3 million, $2.2 million, and $1.5 million, respectively. The increase in expense for the year ended December 31, 2017 compared to the year ended December 31, 2016 was due to an increase in employee eligible compensation, while the expense increase for the year ended December 31, 2016 compared to the year ended December 31, 2015 was driven by the SBM acquisition in the fourth quarter of 2015.

SERP and Other Postretirement Benefit Plan

The Company sponsors unfunded, non-qualified SERPs for certain officers. These agreements are designed to make up the shortfall (when compared to a non-highly compensated employee) in replacing income at retirement due to IRS compensation and benefit limits under the 401(k) plan and Social Security. With a SERP in place, participants should be able to replace 65 –75% of their final average compensation. For those eligible for benefits, the SERP provides for a minimum 15-year guaranteed benefit for all vested participants. In addition, the Company provides medical and life insurance to certain eligible retired employees under the other postretirement benefit plan.

The following table summarizes changes in the benefit obligation and plan assets for (i) SERP and (ii) the other postretirement benefit plan as of December 31, 2017 and 2016:

	SERP						Other Postretirement Benefits
	2017			2016			2017			2016
Benefit obligations:
Beginning of year	$	11,523		$	11,052		$	3,635		$	3,447
Service cost	335			308			53			59
Interest cost	452			432			144			151
Actuarial loss	1,955			219			110			143
Benefits paid	(475		)	(488		)	(151		)	(165		)
End of year	13,790			11,523			3,791			3,635
Fair value of plan assets:
Beginning of year	—			—			—			—
Employer contributions	475			488			151			165
Benefits paid	(475		)	(488		)	(151		)	(165		)
End of year	—			—			—			—
Unfunded status at end of year(1)	$	13,790		$	11,523		$	3,791		$	3,635
Amounts recognized in AOCI, net of tax:
Net actuarial loss	$	3,504		$	1,791		$	654		$	495
Prior service credit	—			—			(170		)	(156		)
Total	$	3,504		$	1,791		$	484		$	339

(1) Presented within other liabilities on the consolidated statements of condition.

The accumulated benefit obligation for the SERP at December 31, 2017 and 2016 was $12.3 million and $10.7 million, respectively.

For the year ending December 31, 2018, the estimated actuarial loss on the SERP that will be amortized from AOCI into net periodic benefit cost is $561,000. All prior service costs have been fully amortized.

For the year ending December 31, 2018, the estimated actuarial loss and prior service credit on other postretirement benefits that will be amortized from AOCI into net periodic benefit cost is $53,000 and $24,000, respectively.

The components of net periodic benefit cost and other amounts recognized in OCI, before taxes, were as follows:

	SERP									Other Postretirement Benefits
	2017			2016			2015			2017			2016			2015
Net periodic benefit cost:
Service cost	$	335		$	308		$	307		$	53		$	59		$	62
Interest cost	452			432			424			144			151			117
Recognized net actuarial loss	246			220			218			41			30			24
Amortization of prior service cost (credit)	—			7			19			(24		)	(22		)	(22		)
Net periodic benefit cost	1,033			967			968			214			218			181
Changes in funded status recognized in OCI, before taxes:
Net actuarial (gain) loss arising during period	1,955			219			(32		)	110			143			92
Reclassifications to net period benefit cost:
Amortization of net unrecognized actuarial loss	(246		)	(220		)	(218		)	(41		)	(30		)	(24		)
Amortization of prior service (cost) credit	—			(7		)	(19		)	24			22			22
Total recognized in OCI, before taxes	1,709			(8		)	(269		)	93			135			90
Total recognized in net periodic benefit cost and OCI, before taxes	$	2,742		$	959		$	699		$	307		$	353		$	271

The following assumptions were used in determining benefit obligations and net period benefit costs:

	SERP						Other Postretirement Benefits
	2017		2016		2015		2017		2016		2015
Weighted-average assumptions as of end of year:
Discount rate for benefit obligation	3.60	%	4.00	%	4.00	%	3.55	%	4.00	%	4.50	%
Discount rate for net periodic benefit cost	4.00	%	4.00	%	4.00	%	4.00	%	4.50	%	4.00	%
Rate of compensation increase for benefit obligation	5.00	%	4.00	%	4.00	%	—		—		—
Rate of compensation increase for net periodic benefit cost	5.00	%	4.00	%	4.00	%	—		—		—
Health care cost trend rate assumed for future years	—		—		—		6.50	%	7.00	%	7.00	%

A 1.0% increase or decrease in the assumed health care cost trend rate would not materially increase or decrease the Company's accumulated postretirement benefit obligation and the related service and interest cost as of December 31, 2017. The postretirement plan has a built-in cap on annual benefits to participants and, thus, the accumulated postretirement benefit obligation and the assumed health care cost trend are relatively stable each period.

For the year ending December 31, 2018, the expected contribution is $473,000 for the SERP and $156,000 for the other postretirement benefits plan. The expected benefit payments for the next ten years are presented in the following table:

	SERP	Other Postretirement Benefits
2018	473	156
2019	477	168
2020	486	173
2021	536	175
2022	566	187
2023-2027	2,246	1,061

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Other Non-Interest Income and Expenses

12 Months Ended

Dec. 31, 2017

Other Noninterest Expenses [Abstract]

Other Non-Interest Expenses

Other Non-Interest Income and Expenses

Detail of other income included in the consolidated statements of income is as follows:

	For The Year Ended  December 31,
Other income	2017		2016		2015
Customer loan swap fee income(1)	$	1,574	$	2,104	$	1,514
Other income	1,545		4,830		2,363
Total	$	3,119	$	6,934	$	3,877

(1) Fee income recognized upon completion of customer loan swaps. Refer to Note 18 for further discussion.

Detail of other expenses included in the consolidated statements of income is as follows:

	For The Year Ended  December 31,
Other expenses	2017		2016		2015
Donations and marketing	$	1,852	$	1,660	$	1,841
Employee-related costs(1)	1,710		1,616		1,437
Postage, freight, and courier	1,655		1,754		1,430
Other expenses	5,731		5,657		4,502
Total	$	10,948	$	10,687	$	9,210

(1) Employee-related costs include hiring, training, education, meeting and business travel costs.

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Commitments, Contingencies and Derivatives

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments, Contingencies and Derivatives

Commitments, Contingencies and Derivatives

Legal Contingencies

In the normal course of business, the Company and its subsidiaries are subject to pending and threatened legal actions. Although the Company is not able to predict the outcome of such actions, after reviewing pending and threatened actions with counsel, management believes that based on the information currently available the outcome of such actions, individually or in the aggregate, will not have a material adverse effect on the Company’s consolidated financial statements.

Reserves are established for legal claims only when losses associated with the claims are judged to be probable, and the loss can be reasonably estimated. In many lawsuits and arbitrations, it is not possible to determine whether a liability has been incurred or to estimate the ultimate or minimum amount of that liability until the case is close to resolution, in which case a reserve will not be recognized until that time.

As of December 31, 2017 and 2016, the Company did not have any material loss contingencies that were provided for and/or disclosure was necessary.

Financial Instruments

In the normal course of business, the Company is a party to both on- and off-balance sheet financial instruments involving, to varying degrees, elements of credit risk and interest rate risk in addition to the amounts recognized in the consolidated statements of condition.

The following is a summary of the contractual and notional amounts of the Company’s financial instruments:

	December 31,
	2017		2016
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	477,401	$	454,225
Commercial and commercial real estate	49,482		83,103
Residential	41,368		17,795
Letters of credit	2,848		2,580
Other commitments	523		432
Derivative Financial Instruments:
Customer loan swaps	$	703,336	$	532,526
FHLBB advance interest rate swaps	50,000		50,000
Junior subordinated debt interest rate swaps	43,000		43,000
Fixed-rate mortgage interest rate lock commitments	21,746		15,249
Forward delivery commitments	8,065		15,125

Lending-Related Instruments

The contractual amounts of the Company’s lending-related financial instruments do not necessarily represent future cash requirements since certain of these instruments may expire without being funded and others may not be fully drawn upon. These instruments are subject to the Company’s credit approval process, including an evaluation of the customer’s creditworthiness and related collateral requirements. Commitments generally have fixed expiration dates or other termination clauses.

Derivative Financial Instruments

The Company uses derivative financial instruments for risk management purposes (primarily interest rate risk) and not for trading or speculative purposes. The Company controls the credit risk of these instruments through collateral, credit approvals and monitoring procedures. Additionally, as part of Company's normal mortgage origination process, it provides the borrower with the option to lock their interest rate based on current market prices. During the period from commitment date to the loan closing date, the Company is subject to the risk of interest rate change. In an effort to mitigate such risk the Company may enter into forward delivery sales commitments, typically on a best-efforts basis, with certain approved investors. The Company accounts for its interest rate lock commitments on loans within the normal origination process for which it intends to sell as a derivative instrument. Furthermore, the Company records a derivative for its best-effort forward delivery commitments upon origination of a loan identified as held for sale. Should the Company enter into a forward delivery commitment on a mandatory delivery arrangement with an investor it accounts for the forward delivery commitment upon execution of the contract.

Derivative instruments are carried at fair value in the Company’s financial statements. The accounting for changes in the fair value of a derivative instrument is dependent upon whether or not it qualifies and has been designated as a hedge for accounting purposes, and further, by the type of hedging relationship.

The Company has designated its interest rate swaps on its junior subordinated debentures and its interest rate swaps on forecasted 30-day FHLBB borrowings as cash flow hedges. The change in the fair value of the Company's cash flow hedges is accounted for within OCI, net of tax. Quarterly, in conjunction with financial reporting, the Company assesses each cash flow hedge for ineffectiveness. To the extent ineffectiveness is identified, this amount is recorded within the consolidated statements of income. Furthermore, the Company will reclassify the gain or loss on the effective portion of the cash flow hedge from OCI into interest expense within the consolidated statements of income in the period the hedged transaction affects earnings.

The change in fair value of the Company's other derivative instruments, not designated and qualifying as hedges, are accounted for within the consolidated statements of income.

Customer Loan Swaps:

The Bank will enter into interest rate swaps with its commercial customers, from time to time, to provide them with a means to lock into a long-term fixed rate, while simultaneously the Bank enters into an arrangement with a counterparty to swap the fixed rate to a variable rate to allow it to effectively manage its interest rate exposure.

The Bank's customer loan level derivative program is not designated as a hedge for accounting purposes. As the interest rate swap agreements have substantially equivalent and offsetting terms, they do not materially change the Bank's interest rate risk or present any material exposure to the Company's consolidated statements of income. The Company records its customer loan swaps at fair value and presents such on a gross basis within other assets and accrued interest and other liabilities on the consolidated statements of condition.

The following table presents the total positions, notional and fair value of the Bank's customer loans swaps with its commercial customers and the corresponding interest rate swap agreements with counterparty for the periods indicated:

		December 31,
		2017						2016
	Balance Sheet Location	Number of Positions	Notional		Fair Value			Number of Positions	Notional		Fair Value
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	42	$	226,884	$	(5,036	)	50	$	266,263	$	(1,945	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	23	124,784		1,799			—	—		—
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	65	351,668		3,237			50	266,263		1,945
Total		130	$	703,336	$	—		100	$	532,526	$	—

The Bank seeks to mitigate its customer counterparty credit risk exposure through its loan policy and underwriting process, which includes credit approval limits, monitoring procedures, and obtaining collateral, where appropriate. The Bank seeks to mitigate its institutional counterparty credit risk exposure by limiting the institutions for which it will enter into interest swap arrangements through an approved listing by the Company's Board of Directors. The Company has entered into a master netting arrangement with its counterparty and settles payments with the counterparty quarterly on a net basis. The Bank's arrangement with its institutional counterparty requires it to post cash or other assets as collateral for its FHLBB advance interest rate swap and customer loan swap contracts in a net liability position based on their fair values and the Bank's credit rating or receive cash collateral for contracts in a net asset position as requested.

FHLBB Advance Interest Rate Swaps:

On February 25, 2015, the Bank entered into two one-year forward-starting interest rate swap arrangements with a counterparty on two tranches of 30-day FHLBB advances with a total notional amount of $50.0 million. Each derivative arrangement commenced on February 25, 2016, with one contract that matured on February 25, 2018 and the other set to mature on February 25, 2019. The Bank entered into these interest rate swaps to mitigate its interest rate exposure on borrowings in a rising interest rate environment. The Bank has designated each arrangement as a cash flow hedge in accordance with GAAP, and, therefore, the change in unrealized gains or losses on the derivative instruments is recorded within AOCI, net of tax. Also, quarterly, in conjunction with financial reporting, the Company assesses each derivative instrument for ineffectiveness. To the extent any significant ineffectiveness is identified this amount would be recorded within the consolidated statements of income. For the year ended December 31, 2017, 2016 and 2015, the Company did not record any ineffectiveness on these cash flow hedges within the consolidated statements of income.

The Bank's arrangement with the counterparty requires it to post cash collateral for its FHLBB advance interest rate swap and customer loan swap contracts in a net liability position based on their fair values and the Bank's credit rating. If the interest rate swaps are in a net asset position based on their fair value, the counterparty will post collateral to the Bank as requested. The collateral posted by the Company (or counterparty) is not readily available and is presented within cash and due from banks on the consolidated statements of condition. At December 31, 2017, the Bank did not hold any cash at a correspondent bank as collateral on its FHLBB advance interest rate swap and customer loan swap contracts.

The details of the FHLBB advance interest rate swaps for the periods indicated were as follows:

						December 31,
						2017		2016
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)		Fair Value(2)
$	25,000	2/25/2015	2/25/2018	1-Month USD LIBOR	1.54%	$	20	$	(152	)
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	1		(237		)
$	50,000					$	21	$	(389	)

(1) Presented within other assets on the consolidated statements of condition.

(2) Presented within accrued interest and other liabilities on the consolidated statements of condition.

Net payments to the counterparty for the year ended December 31, 2017 and 2016 were $288,000 and $490,000, respectively, and have been classified as cash flows from operating activities in the consolidated statements of cash flows.

Junior Subordinated Debt Interest Rate Swaps:

The Company, from time to time, will enter into an interest rate swap agreement with a counterparty to manage interest rate risk associated with its variable rate borrowings. The Company has entered into a master netting arrangement with its counterparty and settles payments with the counterparty quarterly on a net basis. The interest rate swap arrangements contain provisions that require the Company to post cash or other assets as collateral with the counterparty for contracts that are in a net liability position based on their fair values and the Company’s credit rating. If the interest rate swaps are in a net asset position based on their fair value, the counterparty will post collateral to the Company as requested. At December 31, 2017, the Company had $8.1 million of cash posted as collateral to the counterparty. The collateral posted by the Company was not readily available and has been presented within cash and due from banks on the consolidated statements of condition.

The details of the junior subordinated debt interest rate swaps for the periods indicated were as follows:

						December 31,
						2017			2016
Notional  Amount		Trade  Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)			Fair Value(1)
$	10,000	3/18/2009	6/30/2021	3-Month USD LIBOR	5.09%	$	(527	)	$	(806	)
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	(2,133		)	(2,321		)
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	(2,129		)	(2,290		)
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	4.35%	(1,137		)	(1,211		)
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	4.14%	(1,645		)	(1,744		)
$	43,000					$	(7,571	)	$	(8,372	)

(1) Presented within accrued interest and other liabilities on the consolidated statements of condition.

For the year ended December 31, 2017, 2016 and 2015, the Company did not record any ineffectiveness on these cash flow hedges within the consolidated statements of income.

Net payments to the counterparty for the year ended December 31, 2017, 2016 and 2015 were $1.3 million, $1.5 million and $1.7 million, respectively, and were classified as cash flows from operating activities in the consolidated statements of cash flows.

Fixed-Rate Mortgage Interest Rate Locks Commitments:

As part of the origination process of a residential loan, the Company may enter into a rate lock agreement with its borrower, which is considered a fixed-rate mortgage interest rate lock commitment. If the Company has the intention to sell the loan upon origination, it will account for the interest rate lock commitment as a derivative. Our pipeline of mortgage loans with fixed-rate interest rate lock commitments were as follows for the periods indicated:

		December 31,
		2017					2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other assets	$	19,886	$	307		$	12,310	$	202
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	1,860		(22		)	2,939		(15		)
Total		$	21,746	$	285		$	15,249	$	187

For the year ended December 31, 2017, 2016 and 2015, the net unrealized gain from the change in fair value on the Company's mortgage interest rate locks reported within mortgage banking income, net, on the consolidated statements of income were $98,000, $48,000, and $139,000, respectively.

Forward Delivery Commitments:

The Company typically enters into a forward delivery commitment with a secondary market investor, which has been approved by the Company within its normal governance process, at the onset of the loan origination process. The Company may enter into these arrangements with the secondary market investors on a best effort or mandatory delivery basis. The Company's normal practice has been to enter into these arrangements on a best effort basis. The Company enters into these arrangements with the secondary market investors to manage its interest rate exposure. The Company accounts for the forward delivery commitment as a derivative (but does not designate as a hedge) upon origination of a loan for which it intends to sell. The Company's forward delivery commitments on loans held for sale was as follows for the periods indicated:

		December 31,
		2017					2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best-effort")	Other assets	$	6,692	$	158		$	14,250	$	587
Forward delivery commitments ("best-effort")	Accrued interest and other liabilities	1,373		(16		)	875		(309		)
Total		$	8,065	$	142		$	15,125	$	278

For the year ended December 31, 2017, 2016 and 2015, the net unrealized (loss) gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income were $(136,000), $278,000, and $0, respectively.

The table below presents the effect of the Company’s derivative financial instruments included in OCI and current earnings for the periods indicated:

	For The Year Ended December 31,
	2017			2016			2015
Derivatives designated as cash flow hedges
Effective portion of unrealized losses recognized within AOCI during the period, net of tax	$	(248	)	$	(637	)	$	(1,533	)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	1,592		$	2,026		$	1,695

(1) Reclassified into the consolidated statements of income within interest expense.

The Company expects approximately $936,000 (pre-tax) to be reclassified to interest expense from OCI, related to the Company’s cash flow hedges, in the next twelve months. This reclassification is due to anticipated payments that will be made and/or received on the swaps based upon the forward curve as of December 31, 2017.

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Fair Value

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value

Fair Value

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined using quoted market prices. However, in many instances, quoted market prices are not available. In such instances, fair values are determined using various valuation techniques. Various assumptions and observable inputs must be relied upon in applying these techniques. GAAP establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.

GAAP permits an entity to choose to measure certain eligible financial instruments and other items at fair value. The Company elected the fair value option for its loans held for sale. Electing the fair value option for loans held for sale enables the Company’s financial position to more clearly align with the economic value of the actively traded asset.

The fair value hierarchy for valuation of an asset or liability is as follows:

Level 1: Valuation is based upon unadjusted quoted prices in active markets for identical assets and liabilities that the entity has the ability to access as of the measurement date.

Level 2: Valuation is determined from quoted prices for similar assets or liabilities in active markets, from quoted prices for identical or similar instruments in markets that are not active or by model-based techniques in which all significant inputs are observable in the market.

Level 3: Valuation is derived from model-based and other techniques in which at least one significant input is unobservable and which may be based on the Company’s own estimates about the assumptions that market participants would use to value the asset or liability.

In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon model-based techniques incorporating various assumptions including interest rates, prepayment speeds and credit losses. Assets and liabilities valued using model-based techniques are classified as either Level 2 or Level 3, depending on the lowest level classification of an input that is considered significant to the overall valuation. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below.

Financial Instruments Recorded at Fair Value on a Recurring Basis

Loans Held For Sale: The fair value of loans held for sale is determined using quoted secondary market prices or executed sales agreements and is classified as Level 2.

AFS Securities:  The fair value of debt AFS securities is reported utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value of debt securities are classified as Level 2.

The fair value of equity AFS securities is reported utilizing market prices based on recent trading activity and dealer quotes. The equity securities are traded on inactive markets and are classified as Level 2.

Derivatives:  The fair value of the Company's interest rate swaps, including its junior subordinated debt interest rate swaps, FHLBB advance interest rate swaps and customer loan swaps, are determined using inputs that are observable in the market place obtained from third parties including yield curves, publicly available volatilities, and floating indexes and, accordingly, are classified as Level 2 inputs. The credit value adjustments associated with derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. As of December 31, 2017 and 2016, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives due to collateral postings.

The fair value of the Company's fixed rate interest rate lock commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, adjusted for the Company's pull-through rate estimate (i.e. estimate of loans within its pipeline that will ultimately complete the origination process and be funded). The Company has classified its fixed rate interest rate lock commitments as Level 2 as the quoted secondary market prices are the more significant input, and while the Company's internal pull-through rate estimate is a Level 3 estimate it is not as critical to the ultimate valuation.

The fair value of the Company's forward delivery commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, and the locked and agreed to price with the secondary market investor. The Company has classified its fixed rate interest rate lock commitments as Level 2.

The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of December 31, 2017 and 2016, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
December 31, 2017
Financial assets:
Loans held for sale	$	8,103	$	—	$	8,103	$	—
AFS securities:
Obligations of states and political subdivisions	7,335		—		7,335		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	503,302		—		503,302		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	272,799		—		272,799		—
Subordinated corporate bonds	5,657		—		5,657		—
Equity securities	806		—		806		—
Customer loan swaps	5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	307		—		307		—
Forward delivery commitments	158		—		158		—
FHLBB advance interest rate swaps	21		—		21		—
Financial liabilities:
Junior subordinated debt interest rate swaps	7,571		—		7,571		—
Customer loan swaps	5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	22		—		22		—
Forward delivery commitments	16		—		16		—
December 31, 2016
Financial assets:
Loans held for sale	$	14,836	$	—	$	14,836	$	—
AFS securities:
Obligations of states and political subdivisions	9,001		—		9,001		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	480,622		—		480,622		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	283,890		—		283,890		—
Subordinated corporate bonds	5,613		—		5,613		—
Equity securities	741		—		741		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	202		—		202		—
Forward delivery commitments	587		—		587		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,372		—		8,372		—
FHLBB advance interest rate swaps	389		—		389		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	15		—		15		—
Forward delivery commitments	309		—		309		—

The Company did not have any transfers between Level 1 and Level 2 of the fair value hierarchy for the year ended December 31, 2017. The Company’s policy for determining transfers between levels occurs at the end of the reporting period when circumstances in the underlying valuation criteria change and result in transfer between levels.

Financial Instruments Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain financial assets and financial liabilities at fair value on a nonrecurring basis in accordance with GAAP. These include assets that are measured at the lower of cost or fair value that were recognized at fair value below cost at the end of the period.

Collateral-Dependent Impaired Loans:  Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Effective January 1, 2017 the Company's policy is to individually evaluate for impairment loans with a principal balance greater than $500,000 or more and are classified as substandard or doubtful and are on non-accrual status. Prior to January 1, 2017, the Company's policy was to individually evaluate for impairment loans with a principal balance greater than $250,000 or more and was classified as substandard or doubtful and was on non-accrual status. Once the population of loans is identified for individual impairment assessment, the Company measures these loans for impairment by comparing net realizable value, which is the fair value of the collateral, less estimated costs to sell, to the carrying value of the loan. If the net realizable value of the loan is less than the carrying value of the loan, then a loss is recognized as part of the ALL to adjust the loan's carrying value to net realizable value. Accordingly, certain collateral-dependent impaired loans are subject to measurement at fair value on a non-recurring basis. Management has estimated the fair values of these assets using Level 2 inputs, such as the fair value of collateral based on independent third-party market approach appraisals for collateral-dependent loans, and Level 3 inputs where circumstances warrant an adjustment to the appraised value based on the age of the appraisal and/or comparable sales, condition of the collateral, and market conditions.

Servicing Assets:  The Company accounts for mortgage servicing assets at cost, subject to impairment testing. When the carrying value of a tranche exceeds fair value, a valuation allowance is established to reduce the carrying cost to fair value. Fair value is based on a valuation model that calculates the present value of estimated net servicing income. The Company obtains a third-party valuation based upon loan level data including note rate, type and term of the underlying loans. The model utilizes two significant unobservable inputs, which are loan prepayment assumptions and the discount rate used, to calculate the fair value of each tranche, and as such, the Company has classified within Level 3 of the fair value hierarchy.

Non-Financial Assets and Non-Financial Liabilities Recorded at Fair Value on a Nonrecurring Basis

The Company has no non-financial assets or non-financial liabilities measured at fair value on a recurring basis. Non-financial assets measured at fair value on a non-recurring basis consist of OREO and goodwill.

OREO:OREO properties acquired through foreclosure or deed in lieu of foreclosure are recorded at net realizable value, which is the fair value of the real estate, less estimated costs to sell. Any write-down of the recorded investment in the related loan is charged to the ALL upon transfer to OREO. Upon acquisition of a property, a current appraisal is used or an internal valuation is prepared to substantiate fair value of the property. After foreclosure, management periodically, but at least annually, obtains updated valuations of the OREO properties and, if additional impairments are deemed necessary, the subsequent write-downs for declines in value are recorded through a valuation allowance and a provision for losses charged to other non-interest expense within the consolidated statements of income. As management considers appropriate, adjustments are made to the appraisal obtained for the OREO property to account for recent sales activity of comparable properties, changes in the condition of the property, and changes in market conditions. These adjustments are not observable in an active market and are classified as Level 3.

Goodwill and Other Intangible Assets: Goodwill represents the excess cost of an acquisition over the fair value of the net assets acquired. The fair value of goodwill is estimated by utilizing several standard valuation techniques, including discounted cash flow analyses, bank merger multiples, and/or an estimation of the impact of business conditions and investor activities on the long-term value of the goodwill. Should an impairment of either reporting unit's goodwill occur, the associated goodwill is written-down to fair value and the impairment charge is recorded within non-interest expense in the consolidated statements of income. The Company conducts an annual impairment test of goodwill in the fourth quarter each year, or more frequently as necessary. There were no indications or triggering events for the year ended December 31, 2017 or 2016 for which management believed that it was more likely than not that goodwill is impaired.

The Company's core deposit intangible assets represent the estimated value of acquired customer relationships and are amortized on a straight-line basis over the estimated life of those relationships. Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If necessary, management will test the core deposit intangibles for impairment by comparing its carrying value to the expected undiscounted cash flows of the assets. If the undiscounted cash flows of the intangible assets exceed its carrying value then the intangible assets are deemed to be fully recoverable and not impaired. However, if the undiscounted cash flows of the intangible assets are less than its carrying value than an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. There were no indications or triggering events for the year ended December 31, 2017 or 2016 for which management believes that the carrying amount may not be recoverable.

The table below highlights financial and non-financial assets measured and recorded at fair value on a non-recurring basis as of December 31, 2017 and 2016:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
December 31, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,696	$	—	$	—	$	3,696
Servicing assets(1)	—		—		—		—
Non-financial assets:
OREO	130		—		—		130
December 31, 2016
Financial assets:
Collateral-dependent impaired loans	$	500	$	—	$	—	$	500
Servicing assets(1)	1,090		—		—		1,090
Non-financial assets:
OREO	922		—		—		922

(1) Represents mortgage serving assets deemed to be impaired and a valuation allowance was established to carry at fair value at December 31, 2017 and 2016.

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a non-recurring basis at December 31, 2017 and 2016:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
December 31, 2017
Collateral-dependent impaired loans:
Partially charged-off	$	86	Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(18%)
				Estimated selling costs	0 - 10%	(6%)
Specifically reserved	3,610		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
OREO	130		Market approach appraisal of collateral	Management adjustment of appraisal	20%	(20%)
				Estimated selling costs	10%	(10%)
December 31, 2016
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	0 - 10%	(5%)
Specifically reserved	334		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(13%)
				Estimated selling costs	10%	(10%)
OREO	922		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 73%	(7%)
				Estimated selling costs	10%	(10%)

GAAP requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The following methods and assumptions were used by the Company in estimating the fair values of its other financial instruments.

Cash and Due from Banks:  The carrying amounts reported in the consolidated statements of condition approximate fair value that have original maturities of ninety days or less.

HTM securities:  The fair value is estimated utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value is classified as Level 2.

Loans:  For variable rate loans that reprice frequently and have no significant change in credit risk, fair values are based on carrying values. The fair value of other loans is estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities.

Interest Receivable and Payable:  The carrying amounts reported in the consolidated statements of condition approximate fair value.

Deposits:  The fair value of demand, non-interest checking, savings and money market deposits is determined as the amount payable on demand at the reporting date. The fair value of time deposits is estimated by discounting the estimated future cash flows using market rates offered for deposits of similar remaining maturities.

Borrowings:  The carrying amounts of short-term borrowings from the FHLB, securities sold under repurchase agreements, notes payable and other short-term borrowings approximate fair value. The fair values of long-term borrowings and commercial repurchase agreements are based on the discounted cash flows using current rates for advances of similar remaining maturities.

Subordinated Debentures: The fair values of are based on quoted prices from similar instruments in inactive markets.

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities at December 31, 2017:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	102,971	$	102,971	$	102,971	$	—	$	—
AFS securities	789,899		789,899		—		789,899		—
HTM securities	94,073		94,913		—		94,913		—
Loans held for sale	8,103		8,103		—		8,103		—
Residential real estate loans(1)	853,283		853,056		—		—		853,056
Commercial real estate loans(1)	1,152,160		1,115,618		—		—		1,115,618
Commercial loans(1)(2)	413,898		401,902		—		—		401,902
Home equity loans(1)	321,011		318,230		—		—		318,230
Consumer loans(1)	17,916		17,335		—		—		17,335
Servicing assets	1,025		1,766		—		1,766		—
Interest receivable	9,595		9,595		—		9,595		—
Customer loan swaps	5,036		5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	307		307		—		307		—
Forward delivery commitments	158		158		—		158		—
FHLBB advance interest rate swaps	21		21		—		21		—
Financial liabilities:
Deposits	$	3,000,491	$	2,995,269	$	—	$	2,995,269	$	—
Short-term borrowings	541,867		541,683		—		541,683		—
Long-term borrowings	10,720		10,699		—		10,699		—
Subordinated debentures	58,911		44,333		—		44,333		—
Interest payable	564		564		—		564		—
Junior subordinated debt interest rate swaps	7,571		7,571		—		7,571		—
Customer loan swaps	5,036		5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	22		22		—		22		—
Forward delivery commitments	16		16		—		16		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities at December 31, 2016:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	87,707	$	87,707	$	87,707	$	—	$	—
AFS securities	779,867		779,867		—		779,867		—
HTM securities	94,609		94,596		—		94,596		—
Loans held for sale	14,836		14,836		—		14,836		—
Residential real estate loans(1)	798,334		800,122		—		—		800,122
Commercial real estate loans(1)	1,038,626		1,006,249		—		—		1,006,249
Commercial loans(1)(2)	389,624		391,493		—		—		391,493
Home equity loans(1)	327,713		327,292		—		—		327,292
Consumer loans(1)	17,151		16,845		—		—		16,845
Servicing assets	1,210		1,701		—		1,701		—
Interest receivable	8,654		8,654		—		8,654		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	202		202		—		202		—
Forward delivery commitments	587		587		—		587		—
Financial liabilities:
Deposits	$	2,828,529	$	2,826,484	$	—	$	2,826,484	$	—
Short-term borrowings	530,129		530,435		—		530,435		—
Long-term borrowings	10,791		10,836		—		10,836		—
Subordinated debentures	58,755		41,660		—		41,660		—
Interest payable	534		534		—		534		—
Junior subordinated debt interest rate swaps	8,372		8,372		—		8,372		—
FHLBB advance interest rate swaps	389		389		—		389		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	15		15		—		15		—
Forward delivery commitments	309		309		—		309		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

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Parent Company Financial Statements

12 Months Ended

Dec. 31, 2017

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Parent Company Financial Statements

Parent Company Financial Statements

Following are the condensed statements of condition, income and cash flows for the Company's parent company:

STATEMENTS OF CONDITION

	December 31,
	2017		2016
ASSETS
Cash	$	29,365	$	29,905
Investment in subsidiary	444,235		429,100
Receivable from subsidiary	107		107
Other assets	14,806		12,420
Total assets	$	488,513	$	471,532
LIABILITIES AND SHAREHOLDERS’ EQUITY
Subordinated debentures	$	58,911	$	58,755
Due to subsidiary	17		37
Other liabilities	26,172		21,193
Shareholders’ equity	403,413		391,547
Total liabilities and shareholders’ equity	$	488,513	$	471,532

STATEMENTS OF INCOME

	For The Year Ended December 31,
	2017			2016		2015
Operating Income
Dividend income from subsidiary	$	16,800		$	16,000	$	39,200
Other income (loss)	145			239		(18		)
Total operating income	16,945			16,239		39,182
Operating Expenses
Interest on borrowings	3,408			3,415		2,734
Fees to Bank	160			160		160
Other operating expenses	592			748		469
Total operating expenses	4,160			4,323		3,363
Income before equity in undistributed earnings of subsidiaries and income taxes	12,785			11,916		35,819
Equity in undistributed income (losses) of subsidiaries	17,405			26,773		(15,999		)
Income before income taxes	30,190			38,689		19,820
Income tax (expense) benefit	(1,714		)	1,378		1,132
Net Income	$	28,476		$	40,067	$	20,952

STATEMENTS OF CASH FLOWS

	For The Year Ended December 31,
	2017			2016			2015
Operating Activities
Net income	$	28,476		$	40,067		$	20,952
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed (income) losses of subsidiaries	(17,405		)	(26,655		)	4,573
Gain on sale of investment securities	(32		)	(4		)	—
(Increase) decrease in receivable from subsidiaries	—			1,819			(1,901		)
(Increase) decrease in other assets	(1,930		)	1,213			(2,175		)
Increase (decrease) in due to subsidiaries	(20		)	(1,179		)	1,216
Increase (decrease) in other liabilities	3,721			(2,519		)	320
Net cash provided by operating activities	12,810			12,742			22,985
Investing Activities
Acquisition of SBM, net of cash acquired	—			—			(25,319		)
Proceeds from sale of investment securities	110			84			—
Net cash provided by (used in) investing activities	110			84			(25,319		)
Financing Activities
Issuance of subordinated debt, net of issuance costs	—			—			14,464
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings and tax benefit	(606		)	894			753
Capital contribution from subsidiaries	1,469			1,997			836
Equity issuance costs	—			—			(612		)
Cash dividends paid on common stock and cash in-lieu paid for fractional shares due to stock split	(14,323		)	(12,393		)	(9,785		)
Net cash provided by (used in) financing activities	(13,460		)	(9,502		)	5,656
Net (decrease) increase in cash	(540		)	3,324			3,322
Cash at beginning of year	29,905			26,581			23,259
Cash at end of year	$	29,365		$	29,905		$	26,581

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Quarterly Results of Operations (Unaudited)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations (Unaudited)

Quarterly Results of Operations (Unaudited)

The following table presents a summary of the quarterly results of operations for the year ended:

	December 31,
	2017									2016
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter(1)			First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest income	$	32,414	$	33,940	$	34,710	$	35,040		$	31,981	$	32,775	$	32,594	$	32,276
Interest expense	4,559		5,314		5,550		5,381			4,029		4,271		4,222		4,032
Net interest income	27,855		28,626		29,160		29,659			27,952		28,504		28,372		28,244
Provision for credit losses	579		1,401		817		238			872		2,852		1,279		255
Non-interest income	8,572		9,888		10,299		9,840			7,917		10,552		11,001		10,151
Non-interest expense	21,428		22,158		21,825		23,099			22,909		22,330		22,149		22,508
Income before income taxes	14,420		14,955		16,817		16,162			12,088		13,874		15,945		15,632
Income tax expense	4,344		4,721		5,478		19,335			3,442		4,258		5,042		4,730
Net income (loss)	$	10,076	$	10,234	$	11,339	$	(3,173	)	$	8,646	$	9,616	$	10,903	$	10,902
Per common share:
Basic	$	0.65	$	0.66	$	0.72	$	(0.20	)	$	0.56	$	0.62	$	0.70	$	0.70
Diluted	$	0.64	$	0.66	$	0.72	$	(0.20	)	$	0.56	$	0.62	$	0.70	$	0.70

(1) In the fourth quarter of 2017, the Company recognized $14.3 million of additional income tax expense upon the revaluation of its deferred tax assets and liabilities upon enactment of the Tax Act on December 22, 2017, which lowered the federal corporate tax rate from 35.0% to 21.0%, effective January 1, 2018. The impact to fourth quarter 2017 basic and diluted EPS was $0.91 per share.

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Business and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Principles of Consolidation

Principles of Consolidation.  The accompanying consolidated financial statements include the accounts of the Company and the Bank (which includes the consolidated accounts of HPFC, Property A, Inc. and Property P, Inc.). All intercompany accounts and transactions have been eliminated in consolidation. Assets held by the Bank in a fiduciary capacity, through Camden National Wealth Management, are not assets of the Company and, therefore, are not included in the consolidated statements of condition. The Company also owns 100% of the common stock of CCTA and UBCT. These entities are unconsolidated subsidiaries of the Company.

Reclassifications

Reclassifications.  Certain reclassifications have been made to prior year amounts to conform to the current year's presentation.

Use of Estimates

Use of Estimates. The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could vary from these estimates. Several estimates are particularly critical and are susceptible to significant near-term change, including the ALL, the accounting for business combinations including subsequent impairment analyses for goodwill and other intangible assets, accounting for income taxes, postretirement benefits and asset impairment judgments, including OTTI of investment securities.

Subsequent Events

Subsequent Events. The Company has evaluated events and transactions subsequent to December 31, 2017 for potential recognition or disclosure as required by GAAP.

Significant Concentration of Credit Risk

Significant Concentration of Credit Risk.The Bank grants loans primarily to customers in Maine. Although the Bank has a diversified loan portfolio, a large portion of the Bank's loans are secured by commercial or residential real estate located in Maine and is subject to volatility within Maine's real estate market. Furthermore, the debtors' ability to honor their contracts is highly dependent upon other economic factors throughout Maine. The Bank does not generally engage in non-recourse lending and typically will require the principals of any commercial borrower to obligate themselves personally on the loan.

Cash and Cash Equivalents

Cash and Cash Equivalents. For the purposes of reporting cash flows, cash and cash equivalents consist of cash on hand and amounts due from banks. The Bank is required by the FRB to maintain cash reserves equal to a percentage of deposits. The Company maintains the reserve balances in cash on hand or at the FRB.

Investment Securities

Investment Securities. Investment securities are classified at the time of purchase as AFS, HTM, or trading. The classification of investment securities are constantly re-evaluated for consistency with corporate goals and objectives.

Trading securities are carried at fair value on the consolidated statements of condition with subsequent changes to fair value recorded in earnings. At December 31, 2017 and 2016, the Company did not have any investment securities classified as trading securities on its consolidated statements of condition.

Debt securities for which the Company has the positive intent and ability to hold to maturity are classified as HTM and recorded at amortized cost on the consolidated statements of condition. At December 31, 2017 and 2016, the Company had investment securities of $94.1 million and $94.6 million, respectively, classified as HTM and carried at amortized cost on its consolidated statements of condition.

Investment securities that are not classified as HTM or trading securities are classified as AFS and are carried at fair value on the Company's consolidated statements of condition with subsequent changes to fair value recorded within AOCI, net of tax. At December 31, 2017 and 2016, the Company had investment securities of $789.9 million and $779.9 million, respectively, classified as AFS and carried at fair value on its consolidated statements of condition.

Purchase premiums and discounts are recognized in interest income on the consolidated statements of income using the interest method over the period to maturity (or issuer call option date, if earlier) and are recorded on the trade date.

Upon sale of an investment security designated as AFS, the unrealized gain or loss recorded within AOCI, net of tax, is reversed. Gains and losses on the sale of investment securities are recognized within non-interest income on the consolidated statements of income and are recorded on the trade date using the specific identification method.

Management conducts a quarterly review and evaluation of its debt and equity securities portfolio to determine if the decline in fair value of any security appears to be other-than-temporary. The factors considered by management in its review include, but are not limited to: the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, the credit ratings of the security or issuer, whether the decline in fair value appears to be issuer specific or, alternatively, a reflection of general market or industry conditions, and the Company’s intent and ability to hold the security for a period of time sufficient to allow for a recovery in fair value.

Should the Company determine that the decline in the fair value of an equity security was other-than-temporary, the Company recognizes the impairment on the equity security within non-interest income on the consolidated statements of income when identified. For debt securities where the Company does not intend to sell the security and it is not more-likely-than-not that the Company will be required to sell the security before recovery of its amortized cost basis, the other-than-temporary decline in the fair value of the debt security related to: (i) credit loss is recognized in non-interest income on the consolidated statements of income; and (ii) other factors is recognized in AOCI, net of tax. For debt securities where the Company intends to sell the security or more-likely-than-not will be required to sell the security before recovery of its amortized cost, the Company recognizes the OTTI equal to the entire difference between the security’s cost basis and its fair value within non-interest income on the consolidated statements of income.

The

Loans Held for Sale

Loans Held for Sale. The Company has elected the fair value option for loans classified as held for sale on the consolidated statements of condition. Designation of loans as held for sale is determined based on the Company's intent and is, typically, completed as the loans are underwritten. The fair value for loans held for sale is determined using quoted secondary market prices or executed sales agreements. Management constantly evaluates its loan portfolio, in conjunction with asset/liability management practices, and will opt to sell certain loans, typically new 30-year residential mortgages, to manage the Company's interest rate exposure and for other business purposes, including generating fee income through mortgage sale gains. At December 31, 2017 and 2016, the fair value of loans designated as held for sale on its consolidated statements of condition were $8.1 million and $14.8 million, respectively.

Interest and Fees on Loans

Originated Loans and Acquired Loans. Loans are reported at amortized cost, or fair value in the case of acquired loans, adjusted for any partial charge-offs and net of any deferred loan fees or costs. For originated loans, interest income is accrued based upon the daily principal amount outstanding except for loans on non-accrual status. For acquired loans, interest income is also accrued based upon the daily principal amount outstanding and is then further adjusted by the accretion of any discount or amortization of any premium associated with the loan.

For originated loans, loan fees and certain direct origination costs are deferred and amortized into interest income over the contractual term of the loan using the level-yield method. When a loan is paid off, the unamortized portion is recognized in interest income.

A loan is classified as non-accrual generally when it becomes 90 days past due as to interest or principal payments, or sooner if management considers such action to be prudent. All previously accrued but unpaid interest on non-accrual loans is reversed from interest income in the period in which the loan is considered delinquent and the amortization of any unamortized net deferred origination loan fees/costs stops. Interest payments received on non-accrual loans, including impaired loans, are applied as a reduction of principal. A loan remains on non-accrual status until all principal and interest amounts contractually due are brought current and future payments are reasonably assured. Should a loan transition from non-accrual status back to accrual status, the unrecognized interest earned during the period the loan was on non-accrual status and unamortized deferred origination fees and costs are recognized over the remaining contractual life of the loan using the level-yield method.

Goodwill and Core Deposit Intangible

Goodwill and Core Deposit Intangible Assets. Goodwill represents the excess cost of an acquisition over the fair value of the net assets acquired. Goodwill is not subject to amortization but rather is evaluated at least annually for impairment, or as events and circumstances dictate, at the reporting unit level. The Company's two reporting unit levels are (i) banking and (ii) financial services. The banking reporting unit is representative of the Company's core banking business line, while the financial services reporting unit is representative of the Company's wealth management and trust services business line. Any impairment is charged to non-interest expense on the consolidated statements of income.

Goodwill is evaluated for impairment annually as of November 30^th, or more frequently should external and/or internal factors warrant such. The Company may utilize a qualitative analysis (commonly referred to as "step zero") and/or a quantitative analysis to evaluate its reporting units' goodwill for impairment. The Company may utilize the qualitative analysis for an individual reporting unit or for both reporting units any given year. Furthermore, the Company has the option to by-pass the qualitative analysis for any given year and perform the quantitative analysis.

Using a qualitative analysis to assess a reporting unit's goodwill for impairment, the Company will consider various factors to determine if it is more-likely-than-not that a reporting unit's carrying value exceeds its fair value. These factors include, but are not limited to, the overall macro-economic environment; industry economic and regulatory environment; and company specific factors, including, but not limited to, performance, Company common stock share price, competition and/or significant changes in senior management. Should the Company determine it is more-likely-than-not that the carrying value of a reporting unit exceeds its fair value, then the Company would perform then perform the next step of the goodwill impairment test, which is a quantitative analysis. If the Company were to determine it is not more-likely-than-not that the carrying value of a reporting unit exceeds its fair value, the Company would have completed its goodwill impairment evaluation and concluded the reporting unit's goodwill was not impaired.

After performing the qualitative analysis and determining it's more-likely-than-not that the carrying value of a reporting unit exceeds its fair value or if the Company by-passed the qualitative analysis, it would perform a quantitative analysis to determine if the carrying value of a reporting unit exceeds its fair value. The Company may use various valuation techniques such as a discounted cash flow model, a comparative market transaction multiple approach and/or other valuation methods, to determine the reporting unit's fair value. If the fair value of the reporting unit is greater than its carrying value, then the reporting unit is not deemed to be impaired and no further assessment is required. However, if the fair value of the reporting unit is less than its carrying value, the Company would then be required to fair value the tangible and identifiable intangible assets, and liabilities of the reporting unit, to derive an implied fair value of goodwill for the reporting unit. If the implied fair value of goodwill for the reporting unit is greater than its carrying value, then the reporting unit’s goodwill is not impaired. However, if the reporting unit’s implied fair value of goodwill is less than its carrying value, an impairment charge is then recorded to carry goodwill at its calculated implied fair value.

The Company completed its annual goodwill impairment testing as of November 30, 2017, 2016 and 2015 for each reporting unit and goodwill was not impaired.

Core deposit intangible assets represents the estimated value of acquired customer relationships and is amortized on a straight-line basis over the estimated life of those relationships (5 to 10 years from the acquisition dates). Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If necessary, management will test the core deposit intangibles for impairment by comparing its carrying value to the expected undiscounted cash flows of the assets. If the undiscounted cash flows of the intangible assets exceed its carrying value then the intangible assets are deemed to be fully recoverable and not impaired. However, if the undiscounted cash flows of the intangible assets are less than its carrying value then management must compare the fair value of the intangible assets to its carrying value. If the fair value of the intangible assets exceeds its carrying value then the intangible assets are not impaired. If the fair value of the intangible assets is less than its carrying value then an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. For the year ended December 31, 2017, 2016 or 2015, there were no events or changes in circumstances that indicated the carrying amount may not be recoverable.

Bank-Owned Life Insurance

BOLI. BOLI represents the cash surrender value of life insurance policies on the lives of certain active and retired employees where the Company is the beneficiary and is recorded as an asset on the Company's consolidated statements of condition. Increases in the cash surrender values of the policies, as well as death benefits received, net of any cash surrender value, are recorded in non-interest income on the consolidated statements of income, and are not subject to income taxes. The Company reviews the financial strength of the insurance carriers prior to the purchase of life insurance policies and no less than annually thereafter. A life insurance policy with any individual carrier is limited to 15% of Tier I capital (as defined for regulatory purposes) and the total cash surrender value of life insurance policies is limited to 25% of Tier I capital.

Premises and Equipment

Premises and Equipment. Premises and equipment are stated at cost less accumulated depreciation. Acquired premises and equipment (through the acquisition of a company or branch acquisition) are stated at their estimated fair values as of the acquisition date less accumulated depreciation that occurred subsequent to the acquisition date. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the related assets. Leasehold improvements are amortized over the lesser of the term of the respective lease or the estimated life of the improvement. Land is carried at cost.

Software costs are stated at cost less accumulated depreciation within other assets on the consolidated statements of condition. Amortization expense is calculated using the straight-line method over the estimated useful lives of the related assets.

OREO

OREO. OREO properties acquired through foreclosure or deed-in-lieu of foreclosure are recorded initially at estimated fair value less estimated costs to sell. Any write-down of the recorded investment in the related loan is charged to the ALL upon transfer to OREO. Upon acquisition of a property, a current appraisal is used or an internal valuation is prepared to substantiate fair value of the property. Any subsequent declines in the fair value of a property are recorded as a valuation allowance on the asset. Any subsequent increases in the fair value of a property are recorded as reductions of the valuation allowance, but not below zero. Upon a sale of an OREO property, any excess of the carrying value over the sale proceeds is recognized as a loss on sale. Any excess of sale proceeds over the carrying value of the OREO property is first applied as a recovery to the valuation allowance, if any, with the remainder being recognized as a gain on sale. Operating expenses, including legal and other direct expenses, and changes in the valuation allowance relating to foreclosed assets are included in other non-interest expense on the consolidated statements of income.

Mortgage Servicing

Mortgage Banking. Residential real estate mortgages are originated by the Company both for its portfolio and for sale into the secondary market. The transfer of these financial assets is accounted for as a sale when control over the asset has been surrendered. Control is deemed to be surrendered when (i) the asset has been isolated from the Company, (ii) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred asset, and (iii) the Company does not maintain effective control over the transferred asset through an agreement to repurchase them before their maturity. The Company records the gain on sale of the financial asset within mortgage banking income, net on its consolidated statements of income, net of direct and indirect costs incurred to originate the loan.

Servicing assets are recognized as separate assets when servicing rights are acquired through the sale of residential mortgage loans with servicing rights retained. Capitalized servicing rights, which are reported in other assets on the consolidated statements of condition, are initially recorded at fair value and are amortized in proportion to, and over the period of, the estimated future servicing of the underlying mortgages (typically, the contractual life of the mortgage). The amortization of mortgage servicing rights is recorded as a reduction of loan servicing fee income within non-interest income on the consolidated statements of income.

Servicing assets are evaluated for impairment quarterly based upon the fair value of the rights as compared to amortized cost. Impairment is determined by stratifying rights by predominant characteristics, such as interest rates and terms. Fair value is determined using prices for similar assets with similar characteristics, when available, or based upon discounted cash flows using market-based assumptions. Impairment of the servicing assets is recognized through a valuation allowance to the extent that fair value is less than the capitalized amount. If it is later determined that all or a portion of the impairment no longer exists, a reduction of the allowance may be recorded increasing income, but not below zero.

Servicing fee income is recorded for fees earned for servicing loans for investors. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income within non-interest income on the consolidated statements of income when earned.

Other Borrowed Funds

. Short-term borrowings consist of borrowings maturing within one year of the consolidated statement of condition date, while long-term borrowings consist of borrowings maturing in one or more years. The Company's borrowings include retail and wholesale repurchase agreements, FHLBB overnight and short-term borrowings, federal funds purchased, a capital lease, and line of credit advances. The Company is required to post collateral for certain borrowings, for which it, generally, posts loans and/or investment securities as collateral.

Income Taxes

Income Taxes. Income taxes are accounted for using the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax implications attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. If current information suggests that it is not more likely than not that the Company will be able to realize the deferred tax assets, a valuation allowance is established. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

The Company assesses quarterly whether or not a valuation allowance on its deferred tax assets is necessary. If it is more likely than not that the Company will not be able to realize the benefit of the deferred tax assets then a valuation allowance is established on the deferred tax asset not expected to be realized. At December 31, 2017 and 2016, the Company did not carry a valuation allowance on its deferred tax assets.

Earnings per Share

EPS. Basic EPS excludes dilution and is computed by dividing net income applicable to common stock by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if certain securities or other contracts to issue common stock (such as stock options) were exercised or converted into additional common shares that would then share in the earnings of the Company. Diluted EPS is computed by dividing net income applicable to common stock by the weighted-average number of common shares outstanding for the period, plus an incremental number of common-equivalent shares computed using the treasury stock method.

Unvested share-based payment awards which include the right to receive non-forfeitable dividends are considered to participate with common stock in undistributed earnings for purposes of computing EPS. Restricted share grants and management stock purchase grants are considered participating securities for this purpose. Accordingly, the Company is required to calculate basic and diluted EPS using the two-class method. The calculation of EPS using the two-class method (i) excludes any dividends paid or owed on participating securities and any undistributed earnings considered to be attributable to participating securities from the numerator and (ii) excludes the dilutive impact of the participating securities from the denominator.

Postretirement and Supplemental Retirement Plans

Postretirement Plans. The Company sponsors various retirement plans for current and former employees, including a SERP for certain officers of the Company and a postretirement health care and life insurance plan to certain eligible retired employees. The SERP and postretirement benefit plans are unfunded and have no plan assets, and the Company has recorded a liability on its consolidated statements of condition.

For the SERP, benefit obligations are estimated using the projected unit credit method. Under this method, each participant's benefits are attributed to years of service, taking into consideration future salary increases and the SERP's benefit allocation formula. Thus, the estimated total pension to which each participant is expected to become entitled to at retirement is broken down into units, each associated with a year of past or future credited service. For the SERP, an individual's estimated attributed benefit for valuation purposes related to a particular separation date is the benefit described under the SERP based on credited service as of the measurement date, but determined using the projected salary that would be used in the calculation estimate of the benefit on the expected separation date.

Stock-Based Compensation

Stock-Based Compensation. The fair value of restricted stock awards, restricted stock units and stock options is determined on the grant date. For restricted stock awards and units, compensation is recognized ratably over the requisite service period equal to the fair value of the award. For stock option awards, the fair value is determined using the Black-Scholes option-pricing model. Compensation expense for stock option awards is recognized ratably over the requisite service period equal to the fair value of the award. For performance-based share awards, the Company estimates the degree to which performance conditions will be met to determine the number of shares that will vest and the related compensation expense. Compensation expense is adjusted in the period such estimates change.

Off-Balance Sheet Credit Related Financial Instruments

Off-Balance Sheet Credit Related Financial Instruments. In the ordinary course of business, the Company enters into commitments to extend credit, including commercial letters of credit and standby letters of credit. Such financial instruments are recorded as loans when they are funded.

Derivative Financial Instruments Designated as Hedges

Derivative Financial Instruments Designated as Hedges. The Company recognizes all derivatives in the consolidated statements of condition at fair value. On the date the Company enters into the derivative contract, the Company designates the derivative as a hedge of either a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”), a hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (“fair value hedge”), or a held for trading instrument (“trading instrument”). The Company formally documents relationships between hedging instruments and hedged items, as well as its risk management objectives and strategy for undertaking various hedge transactions. The Company also assesses, both at the hedge’s inception and on an ongoing basis, whether the derivatives that are used in hedging transactions are effective in offsetting changes in cash flows or fair values of hedged items. Changes in fair value of a derivative that is effective and that qualifies as a cash flow hedge are recorded in OCI and are reclassified into earnings when the forecasted transaction or related cash flows affect earnings. Changes in fair value of a derivative that qualifies as a fair value hedge and the change in fair value of the hedged item are both recorded in earnings and offset each other when the transaction is effective. Those derivatives that are classified as trading instruments are recorded at fair value with changes in fair value recorded in earnings. The Company discontinues hedge accounting when it determines that the derivative is no longer effective in offsetting changes in the cash flows of the hedged item, that it is unlikely that the forecasted transaction will occur, or that the designation of the derivative as a hedging instrument is no longer appropriate.

Segment Reporting

Segment Reporting. The Company, through its bank subsidiary, provides a broad range of financial services to individuals and companies primarily in Maine. These services include lending, checking, savings and time deposits, cash management, brokerage, wealth management and trust services. Substantially all of the Company's revenues, profits, and assets are derived by the Bank from banking products and services. The Company did not have any reportable segments for the year ended December 31, 2017, 2016 or 2015.

Recent Accounting Pronouncements

Recent Accounting Pronouncements.(The following recently issued accounting pronouncements are presented in chronological order of required adoption date for the Company. Should the Company have early adopted a recently issued accounting pronouncement it has been presented in the year of adoption.)

In February 2018, the FASB issued ASU No. 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulate Other Comprehensive Income ("ASU 2018-02"). ASU 2018-02 was issued to allow a reclassification from AOCI to retained earnings for stranded tax effects resulting from the Tax Act. The Company made a policy election to adopt ASU 2018-02 effective for its year ended December 31, 2017 consolidated financial statements, the period in which the effects of the change in the U.S. federal corporate income tax due to the Tax Act were recognized. The adoption of ASU 2018-02 resulted in a $3.5 million income reclassification from AOCI to retained earnings within its consolidated statements of condition and consolidated statements of shareholders' equity for the year ended December 31, 2017.

In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date ("ASU 2015-14"). ASU 2015-14 was issued to defer the effective date of ASU 2014-09, Revenue from Contracts with Customers (Topic 606) ("ASU 2014-09"), for all entities by one year. ASU 2014-09 was issued to clarify the principles for recognizing revenue and to develop a common revenue standard. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period.

The Company adopted ASU 2014-09 effective January 1, 2018 using the modified-retrospective transition method. As part of its assessment, the Company concluded that the following material revenue streams were within the scope of ASU 2014-09: (i) service charges on deposit accounts; (ii) debit card interchange income; and (iii) income from fiduciary services and brokerage fees. Through the Company's assessment, it was determined that the impact of the adoption of ASU 2014-09 is not material to its financial statements. There will be no cumulative-effect adjustment to beginning shareholders' equity under the modified-retrospective transition method within the Company's first quarter 2018 financial reporting on Form 10-Q as there was no change in revenue recognition upon adoption of ASU 2014-09.

In January 2016, the FASB issued ASU No. 2016-01, Income Statement - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Liabilities ("ASU 2016-01"). ASU 2016-01 was issued to enhance the reporting model for financial instruments to provide the users of financial statements with more useful information for decisions. The Company adopted ASU 2016-01 effective January 1, 2018. Upon adoption, the Company will recognize unrealized gains and losses on its equity securities directly through the Company's consolidated statements of income, instead of reporting unrealized gains and losses on equity investments designated as AFS within AOCI. A cumulative-effect adjustment will occur to the Company's beginning shareholders' equity within its first quarter 2018 financial reporting on Form 10-Q to reclassify the unrealized gain reporting within AOCI at December 31, 2017 to retained earnings. The reclassification is immaterial to the Company's financial statements.

In addition, ASU 2016-01 also requires companies to utilize an "exit price" fair value methodology for purposes of disclosing the fair value of financial assets and liabilities not measured and reported at fair value on a recurring or non-recurring basis. The Company does not anticipate ASU 2016-01 will materially impact the Company's financial disclosures.

In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost ("ASU 2017-07"). ASU 2017-07 was issued to improve the presentation of net periodic pension cost and net periodic postretirement by companies to disaggregate the service cost component from the other components of net benefit cost, as well as provide other guidance to improve consistency, transparency and usefulness. Upon adoption in the first quarter of 2018, the Company will present and disclose the service cost component in the salaries and employee benefits line on its consolidated statements of income and the other components of net periodic benefit cost within other expenses on its consolidated statements of income. Upon adoption, the change in presentation will be applied retrospectively. The Company will use the amounts previously disclosed within its prior year financial statements as a practical expedient for retrospective presentation within its consolidated statements of income. The other provisions of ASU 2017-07 are not applicable to the Company. ASU 2017-07 will not have a material impact to its financial statements upon adoption.

In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting ("ASU 2017-09"). ASU 2017-09 was issued to provide clarification about which changes to the terms or conditions of a share-based payment award would require application of modification accounting in Topic 718. ASU 2017-09 is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in an interim period. ASU 2017-09 is to be applied prospectively effective as of the adoption date.

During the year ended December 31, 2017, the Company elected to early adopt ASU 2017-09, effective as of January 1, 2017. The Company has not had any modifications to its share-based awards for the year ended December 31, 2017.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). ASU 2016-02 was issued to increase transparency and comparability among organizations by recognizing lease assets and liabilities (including operating leases) on the balance sheet and disclosing key information about leasing arrangements. Current lease accounting does not require the inclusion of operating leases in the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, early application is permitted. The Company will adopt under a modified-retrospective approach.

Upon adoption, ASU 2016-02 will increase the Company's total assets and liabilities on its consolidated statements of condition as its operating leases will be accounted for as a right-of-use asset and a lease liability; however, the Company does not anticipate that upon adoption the ASU will have a material effect on its consolidated financial statements. The Company continues to evaluate the impact of adoption of this standard.

In March 2017, the FASB issued ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities ("ASU 2017-08"). ASU 2017-08 was issued to shorten the amortization period for certain callable debt securities purchased and carried at a premium, by requiring the premium to be amortized to the earliest call date of the debt security. ASU 2017-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The Company will adopt on a modified retrospective basis with any necessary adjustments to retained earnings as a cumulative-effect adjustment. While the Company continues to assess the impact of ASU 2017-08, it does not expect the ASU will have a material impact to its financial statements upon adoption.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12"). ASU 2017-12 was issued to make certain specific improvements to hedge accounting to better align hedge accounting with risk management activities, eliminate the separate measurement and recording of hedge ineffectiveness, improve presentation and disclosure, and other simplifications. ASU 2017-12 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. All transition requirements and elections are to be applied to existing hedging relationships upon adoption. While the Company continues to assess the impact of ASU 2017-12, it does not believe it will have a material impact on the Company's consolidated financial statements upon adoption.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). ASU 2016-13 was issued to require timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years, for public companies. Early adoption is permitted for annual periods beginning after December 15, 2018, including interim periods within that fiscal year. The Company will adopt the guidance under a modified-retrospective approach, whereby a cumulative-effect adjustment will be made to retained earnings upon adoption. The Company will use a prospective transition approach for debt securities for which an OTTI had been recognized before the effective date, as applicable.

While the Company continues to prepare for the adoption of ASU 2016-13 on January 1, 2020, it recognizes the changes to its consolidated financial statements upon adoption are imminent as the ASU requires:

• A change in the Company's assessment of its ALL and allowance on unused commitments as it will transition from an incurred loss model to an expected loss model, which may result in an increase in the ALL upon adoption and may negatively impact the Company and Bank's regulatory capital ratios.

• May reduce the carrying value of the Company's HTM investment securities as it will require an allowance on the expected losses over the life of these securities to be recorded upon adoption.

• Changes to the considerations when assessing AFS debt securities for OTTI, including (i) no longer considering the amount of time a security has been in an unrealized loss position and (ii) no longer considering the historical and implied volatility of a security and recoveries or declines in the fair value after the balance sheet date, as well as the presentation of OTTI as an allowance rather than a permanent write-down of the debt security.

• Changes to the disclosure requirements to reflect the transition from an incurred loss methodology to an expected credit loss methodology, as well as certain disclosures of credit quality indicators in relation to the amortized cost of financing receivables disaggregated by year of origination (or vintage).

The Company continues to assess the overall impact to its financial statements, and, at this time, it does not have an estimated impact to its financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"). ASU 2017-04 was issued to reduce the cost and complexity of the goodwill impairment test. To simplify the subsequent measurement of goodwill, step two of the goodwill impairment test was eliminated. Instead, in accordance with ASU 2017-04, a Company will recognize an impairment of goodwill should the carrying value of a reporting unit exceed its fair value (i.e. step one). ASU 2017-04 will be effective for the Company on January 1, 2020 and will be applied prospectively.

ALL

ALL. The ALL is established through provisions for loan losses charged to income. Losses on loans, including impaired loans, are charged to the ALL when all or a portion of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the ALL when realized.

In determining the appropriate level of ALL, the Company uses a methodology to systematically measure the amount of estimated loan loss exposure inherent in the loan portfolio. The methodology includes three elements: (1) identification of loss allocations for certain specific loans, (2) loss allocation factors for certain loan types based on credit risk and loss experience, and (3) general loss allocations for other qualitative and environmental factors.

The allocations for specific loans is determined based on loans that have a principal balance of $500,000 or more that are classified as substandard or doubtful and are on non-accrual status. Effective January 1, 2017, the Company's internal policy for assessing specific loans for impairment was increased from $250,000 to $500,000. The qualitative factors for assessing a loan individually for impairment in accordance with the Company's internal policy were unchanged, and continue to require the loan to be classified as substandard or doubtful and on non-accrual status. For such loans that are also classified as impaired, an allowance is established when the discounted expected future cash flows (or collateral value or observable market price) of the impaired loan is lower than the recorded investment of that loan. Loans that do not meet the above criteria are separated into risk pools by portfolio segment and risk ratings. The Company then evaluates each risk pool collectively for impairment through loss allocation factors.

The Company uses a risk rating system for certain loan segments to determine the credit quality of these loan pools and applies the related loss allocation factors. In assessing the risk rating of a particular loan, the Company considers, among other factors, the obligor’s debt capacity, financial condition, the level of the obligor’s earnings, the amount and sources of repayment, the performance with respect to loan terms, the adequacy of collateral, the level and nature of contingent liabilities, management strength, and the industry in which the obligor operates. These factors are based on an evaluation of historical information, as well as subjective assessment and interpretation of current conditions. Emphasizing one factor over another, or considering additional factors that may be relevant in determining the risk rating of a particular loan but which are not currently an explicit part of the Company's methodology, could impact the risk rating assigned to that loan.

The Company at least annually, and more frequently as deemed prudent by management, reassesses and revises the loss allocation factors used in the assignment of loss exposure to appropriately reflect the analysis of loss experience. Portfolios of more homogeneous populations of loans including home equity and consumer loans are analyzed as groups taking into account delinquency rates and other economic conditions which may affect the ability of borrowers to meet debt service requirements, including interest rates and energy costs. The Company also considers regulatory guidance, historical loss ranges, portfolio composition, and other changes in the portfolio. An additional allocation is determined based on a judgmental process whereby management considers qualitative and quantitative assessments of other environmental factors.

Since the methodology is based upon historical experience and trends, as well as management’s judgment, factors may arise that result in different estimations. Significant factors that could give rise to changes in these estimates may include, but are not limited to, changes in economic conditions in the Company’s market areas, concentration of risk, declines in local property values, and regulatory guidance.

Loans past due 30 days or more are considered delinquent. In general, secured loans that are delinquent for 90 consecutive days are placed on non-accrual status, and are subject to impairment and/or loss assessment in accordance with established internal policy. In general, unsecured loans that are delinquent for 90 consecutive days are charged off.

In cases where a borrower experiences financial difficulties and the Company makes certain concessionary modifications to contractual terms, the loan is classified as a TDR. Modifications may include adjustments to interest rates, extensions of maturity, and other actions intended to minimize economic loss and avoid foreclosure or repossession of collateral. An allowance is established on a loan classified as a TDR if the present value of expected future cash flows (or, alternatively, the observable market price of the loan or the fair value of the collateral if the loan is collateral-dependent) is less than the recorded investment of the loan. Non-accrual loans that are restructured as TDRs remain on non-accrual status for a period of at least six months to demonstrate that the borrower can meet the restructured terms. If the restructured loan is on accrual status prior to being modified, it is reviewed to determine if the modified loan should remain on accrual status. If the borrower’s ability to meet the revised payment schedule is not reasonably assured, the loan is classified as a non-accrual loan. Loans classified as TDRs remain classified as such for the life of the loan, except in limited circumstances, when it is determined that the borrower is performing under the modified terms and the restructuring agreement specified an interest rate greater than or equal to an acceptable market rate for a comparable new loan at the time of the restructuring.

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Mergers and Acquisitions (Tables)

12 Months Ended

Dec. 31, 2017

Business Combinations [Abstract]

Acquisition Related Costs

The Company incurred acquisition-related costs for the periods indicated as detailed below:

	For The Year Ended December 31,
	2017		2016		2015
Salaries and employee benefits(1)	$	—	$	8	$	3,240
Furniture, equipment and data processing	—		279		1,531
Net occupancy	—		439		1,237
Consulting and professional fees(2)	—		80		2,453
Other expenses(3)	—		60		1,954
Total merger and acquisition costs	$	—	$	866	$	10,415

(1) Includes the costs associated with pre-existing change-in-control agreements in place at the time of the Merger and employee termination costs, including severance.

(2) Includes the cost of a negotiated non-compete arrangement entered into in connection with the Merger of $400,000 in 2015.

(3) Other expenses include marketing and insurance costs, certain contract termination costs, various printing and mailing costs associated with various customer communications, and travel-related costs associated with the integration of the two companies in 2015.

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed as of the date of the acquisition:

	As Acquired		Fair Value Adjustments (Previously Reported)			Measurement-Period Adjustments		As Recorded at Acquisition
Consideration Paid:
Cash								$	26,125
Company common stock (4,124,643 shares at $26.32 per share)								108,561
Non-qualified stock options								1,990
Total consideration paid								136,676
Recognized identifiable assets acquired and liabilities assumed, at fair value:
Loans and loans held for sale	$	639,390	$	(11,497	)	$	137	628,030
Cash and due from banks	86,042		—			—		86,042
Investments	39,716		26			—		39,742
Deferred tax assets	26,293		(1,177		)	666		25,782
Premises and equipment	16,851		7,093			—		23,944
OREO	2,530		(1,801		)	—		729
Core deposit intangible assets	—		6,608			—		6,608
Other assets	5,421		(170		)	157		5,408
Deposits and borrowings	719,640		1,546			—		721,186
Other liabilities	8,512		(198		)	—		8,314
Total identified assets acquired and liabilities assumed, at fair value	$	88,091	$	(2,266	)	$	960	86,785
Goodwill								$	49,891

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Securities (Tables)

12 Months Ended

Dec. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Summary of Amortized Costs and Estimated Fair Values of Available-For-Sale Securities

The following tables summarize the amortized costs and estimated fair values of AFS and HTM securities, as of the dates indicated:

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
December 31, 2017:
AFS Securities:
Obligations of states and political subdivisions	$	7,232	$	103	$	—		$	7,335
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	510,176		597		(7,471		)	503,302
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	279,575		14		(6,790		)	272,799
Subordinated corporate bonds	5,484		173		—			5,657
Total AFS debt securities	802,467		887		(14,261		)	789,093
Equity securities	554		252		—			806
Total AFS securities	$	803,021	$	1,139	$	(14,261	)	$	789,899
HTM Securities:
Obligations of states and political subdivisions	$	94,073	$	1,077	$	(237	)	$	94,913
Total HTM securities	$	94,073	$	1,077	$	(237	)	$	94,913
December 31, 2016:
AFS Securities:
Obligations of states and political subdivisions	$	8,848	$	153	$	—		$	9,001
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	485,222		2,515		(7,115		)	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	289,046		265		(5,421		)	283,890
Subordinated corporate bonds	5,481		132		—			5,613
Total AFS debt securities	788,597		3,065		(12,536		)	779,126
Equity securities	632		109		—			741
Total AFS securities	$	789,229	$	3,174	$	(12,536	)	$	779,867
HTM Securities:
Obligations of states and political subdivisions	$	94,609	$	618	$	(631	)	$	94,596
Total HTM securities	$	94,609	$	618	$	(631	)	$	94,596

Unrealized Gross Losses and Estimated Fair Values of Investment Securities by Length of Time that Individual Securities in Each Category in Continuous Loss Position

The following table presents the estimated fair values and gross unrealized losses of investment securities that were in a continuous loss position at December 31, 2017 and 2016, by length of time that individual securities in each category have been in a continuous loss position:

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2017:
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	221,466	$	(2,393	)	$	233,971	$	(5,078	)	$	455,437	$	(7,471	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	102,612		(696		)	164,389		(6,094		)	267,001		(6,790		)
Total AFS securities	$	324,078	$	(3,089	)	$	398,360	$	(11,172	)	$	722,438	$	(14,261	)
HTM Securities:
Obligations of states and political subdivisions	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
Total HTM securities	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
December 31, 2016:
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	348,579	$	(5,780	)	$	29,496	$	(1,335	)	$	378,075	$	(7,115	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	163,412		(2,906		)	74,212		(2,515		)	237,624		(5,421		)
Total AFS securities	$	511,991	$	(8,686	)	$	103,708	$	(3,850	)	$	615,699	$	(12,536	)
HTM Securities:
Obligations of states and political subdivisions	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)
Total HTM securities	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)

Company's Sales of Securities

The following table details the Company’s sales of AFS investment securities, the gross realized gains and losses, and OTTI of securities:

	For The Year Ended December 31,
	2017			2016			2015
Proceeds from sales of securities	$	20,366		$	28,850		$	12,426
Gross realized gains	869			125			221
Gross realized losses	(14		)	(74		)	(217		)
Previously recorded OTTI	—			—			204

Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity

The amortized cost and estimated fair values of securities by contractual maturity at December 31, 2017 are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Fair Value
AFS Securities
Due in one year or less	$	4,986	$	4,983
Due after one year through five years	104,294		103,572
Due after five years through ten years	212,809		209,663
Due after ten years	480,378		470,875
	$	802,467	$	789,093
HTM Securities
Due in one year or less	$	751	$	751
Due after one year through five years	4,705		4,721
Due after five years through ten years	10,110		10,192
Due after ten years	78,507		79,249
	$	94,073	$	94,913

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Loans and Allowance for Loan Losses (Tables)

12 Months Ended

Dec. 31, 2017

Receivables [Abstract]

Composition of Loan Portfolio, Excluding Residential Loans Held for Sale

The composition of the Company’s loan portfolio, excluding residential loans held for sale, at December 31, 2017 and 2016 was as follows:

	December 31,
	2017		2016
Residential real estate loans	$	858,369	$	802,494
Commercial real estate loans	1,164,023		1,050,780
Commercial loans	373,400		333,639
Home equity loans	323,378		329,907
Consumer loans	18,149		17,332
HPFC	45,120		60,412
Total loans	$	2,782,439	$	2,594,564

Schedule of Loan Balances for Each Portfolio Segment

The loan balances for each portfolio segment presented above are net of their respective unamortized fair value mark discount on acquired loans and net of unamortized loan origination costs totaling:

	December 31,
	2017			2016
Net unamortized fair value mark discount on acquired loans	$	6,207		$	8,810
Net unamortized loan origination costs	(963		)	(66		)
Total	$	5,244		$	8,744

Schedule of Loans Made to Related Parties

Loans, including any unused lines of credit, to related parties were as follows:

	December 31,
	2017			2016
Balance at beginning of year	$	15,942		$	16,628
Loans made/advanced and additions	230			434
Repayments and reductions	(3,032		)	(1,120		)
Balance at end of year	$	13,140		$	15,942

Activity in Allowance for Loan Losses by Portfolio Segment

The following table presents the activity in the ALL and select loan information by portfolio segment for the year ended December 31, 2017, 2016, and 2015:

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Unallocated		Total
For The Year Ended   December 31, 2017:
ALL:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
Loans charged off	(482		)	(124		)	(1,014		)	(434		)	(124		)	(290		)	—		(2,468		)
Recoveries	30			141			301			2			17			6			—		497
Provision (credit)(1)	1,378			(308		)	1,129			605			159			63			—		3,026
Ending balance	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	—	$	24,171
ALL balance attributable loans:
Individually evaluated for impairment	$	568		$	1,441		$	—		$	—		$	—		$	—		$	—	$	2,009
Collectively evaluated for impairment	4,518			10,422			4,171			2,367			233			451			—		22,162
Total ending ALL	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	—	$	24,171
Loans:
Individually evaluated for impairment	$	5,171		$	6,199		$	1,791		$	429		$	—		$	—		$	—	$	13,590
Collectively evaluated for impairment	853,198			1,157,824			371,609			322,949			18,149			45,120			—		2,768,849
Total loan balances	$	858,369		$	1,164,023		$	373,400		$	323,378		$	18,149		$	45,120		$	—	$	2,782,439
For The Year Ended   December 31, 2016:
ALL:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	—	$	21,166
Loans charged off	(356		)	(315		)	(2,218		)	(308		)	(101		)	(507		)	—		(3,805		)
Recoveries	95			50			332			2			7			—			—		486
Provision (credit)(1)	(124		)	1,987			2,400			(231		)	82			1,155			—		5,269
Ending balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
ALL balance attributable loans:
Individually evaluated for impairment	$	483		$	1,373		$	—		$	86		$	—		$	65		$	—	$	2,007
Collectively evaluated for impairment	3,677			10,781			3,755			2,108			181			607			—		21,109
Total ending ALL	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	—	$	23,116
Loans:
Individually evaluated for impairment	$	4,348		$	13,317		$	2,028		$	457		$	7		$	97		$	—	$	20,254
Collectively evaluated for impairment	798,146			1,037,463			331,611			329,450			17,325			60,315			—		2,574,310
Total loan balances	$	802,494		$	1,050,780		$	333,639		$	329,907		$	17,332		$	60,412		$	—	$	2,594,564

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC		Unallocated			Total
For The Year Ended December 31, 2015:
ALL:
Beginning balance	$	4,899		$	7,951		$	3,354		$	2,247		$	281		$	—	$	2,384		$	21,116
Loans charged off	(801		)	(481		)	(655		)	(525		)	(154		)	—		—			(2,616		)
Recoveries	55			74			389			188			22			—		—			728
Provision (credit)(1)	392			2,888			153			821			44			24		(2,384		)	1,938
Ending balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24	$	—		$	21,166
ALL balance attributable loans:
Individually evaluated for impairment	$	544		$	644		$	92		$	89		$	—		$	—	$	—		$	1,369
Collectively evaluated for impairment	4,001			9,788			3,149			2,642			193			24		—			19,797
Total ending ALL	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24	$	—		$	21,166
Loans:
Individually evaluated for impairment	$	6,026		$	4,610		$	3,937		$	588		$	74		$	—	$	—		$	15,235
Collectively evaluated for impairment	814,591			923,341			293,784			348,046			17,879			77,330		—			2,474,971
Total loan balances	$	820,617		$	927,951		$	297,721		$	348,634		$	17,953		$	77,330	$	—		$	2,490,206

(1) The provision (credit) for loan losses excludes any impact for the change in the reserve for unfunded commitments, which represents management's estimate of the amount required to reflect the probable inherent losses on outstanding letters of credit and unused lines of credit. The reserve for unfunded commitments is presented within accrued interest and other liabilities on the consolidated statements of condition. At December 31, 2017, 2016, and 2015, the reserve for unfunded commitments was $20,000, $11,000 and $22,000, respectively.

Schedule of Provision for Credit Losses

The following table reconciles the year ended December 31, 2017, 2016, and 2015 provision for loan losses to the provision for credit losses as presented on the consolidated statement of income:

	For the Year Ended December 31,
	2017		2016			2015
Provision for loan losses	$	3,026	$	5,269		$	1,938
Change in reserve for unfunded commitments	9		(11		)	(2		)
Provision for credit losses	$	3,035	$	5,258		$	1,936

Credit Risk Exposure Indicators by Portfolio Segment

The following table summarizes credit risk exposure indicators by portfolio segment as of the following dates:

	Residential Real Estate		Commercial Real Estate		Commercial		Home Equity		Consumer		HPFC		Total
December 31, 2017:
Pass (Grades 1 – 6)	$	846,394	$	1,130,235	$	354,904	$	—	$	—	$	43,049	$	2,374,582
Performing	—		—		—		321,727		18,149		—		339,876
Special Mention (Grade 7)	922		9,154		12,517		—		—		191		22,784
Substandard (Grade 8)	11,053		24,634		5,979		—		—		1,880		43,546
Non-performing	—		—		—		1,651		—		—		1,651
Total	$	858,369	$	1,164,023	$	373,400	$	323,378	$	18,149	$	45,120	$	2,782,439
December 31, 2016:
Pass (Grades 1 – 6)	$	789,554	$	1,003,386	$	321,148	$	—	$	—	$	58,943	$	2,173,031
Performing	—		—		—		328,287		17,328		—		345,615
Special Mention (Grade 7)	2,387		5,724		5,598		—		—		257		13,966
Substandard (Grade 8)	10,553		41,670		5,437		—		—		1,212		58,872
Doubtful (Grade 9)	—		—		1,456		—		—		—		1,456
Non-performing	—		—		—		1,620		4		—		1,624
Total	$	802,494	$	1,050,780	$	333,639	$	329,907	$	17,332	$	60,412	$	2,594,564

Loan Aging Analysis by Portfolio Segment (Including Loans Past Due Over Ninety Days and Non Accrual Loans) and Summary of Non Accrual Loans, Which Include Troubled Debt Restructured Loans, and Loans Past Due Over Ninety Days and Accruing

The following is a loan aging analysis by portfolio segment (including loans past due over 90 days and non-accrual loans) and a summary of non-accrual loans, which include TDRs, and loans past due over 90 days and accruing as of the following dates:

	30 –  59 Days Past Due		60 – 89 Days Past Due		Greater Than 90 Days		Total Past Due		Current		Total Loans Outstanding		Loans > 90 Days Past Due and Accruing		Non-Accrual Loans
December 31, 2017:
Residential real estate	$	3,871	$	1,585	$	4,021	$	9,477	$	848,892	$	858,369	$	—	$	4,979
Commercial real estate	849		323		5,528		6,700		1,157,323		1,164,023		—		5,642
Commercial	329		359		1,535		2,223		371,177		373,400		—		2,000
Home equity	1,046		173		1,329		2,548		320,830		323,378		—		1,650
Consumer	57		10		—		67		18,082		18,149		—		—
HPFC	139		1,372		419		1,930		43,190		45,120		—		1,043
Total	$	6,291	$	3,822	$	12,832	$	22,945	$	2,759,494	$	2,782,439	$	—	$	15,314
December 31, 2016:
Residential real estate	$	1,783	$	924	$	2,904	$	5,611	$	796,883	$	802,494	$	—	$	3,945
Commercial real estate	855		223		12,625		13,703		1,037,077		1,050,780		—		12,849
Commercial	633		218		1,675		2,526		331,113		333,639		—		2,088
Home equity	892		134		1,321		2,347		327,560		329,907		—		1,620
Consumer	38		—		4		42		17,290		17,332		—		4
HPFC	438		688		110		1,236		59,176		60,412		—		207
Total	$	4,639	$	2,187	$	18,639	$	25,465	$	2,569,099	$	2,594,564	$	—	$	20,713

Troubled Debt Restructuring and Specific Reserve Related to TDRs

The following is a summary of TDRs, by portfolio segment, and the associated specific reserve included within the ALL as of December 31:

	Number of Contracts		Recorded Investment				Specific Reserve
	2017	2016	2017		2016		2017		2016
Residential real estate	24	21	$	3,604	$	3,221	$	452	$	483
Commercial real estate	3	3	976		1,008		16		—
Commercial	7	10	1,345		1,502		—		—
Consumer and home equity	2	1	307		16		—		—
Total	36	35	$	6,232	$	5,747	$	468	$	483

Summary of All Troubled Debt Restructuring Loans (Accruing and Non Accruing) by Portfolio Segment

The following represents loan modifications that occurred for the year ended December 31, 2017, 2016 and 2015 that qualify as TDRs and the type of loan modification made by portfolio segment at December 31:

	Number of Contracts			Pre-Modification Outstanding Recorded Investment						Post-Modification Outstanding Recorded Investment						Specific Reserve
	2017	2016	2015	2017		2016		2015		2017		2016		2015		2017		2016		2015
Residential real estate:
Maturity concession	2	—	—	$	298	$	—	$	—	$	298	$	—	$	—	$	15	$	—	$	—
Court ordered	—	—	1	—		—		74		—		—		78		—		—		27
Interest rate concession	1	—	—	134		—		—		145		—		—		—		—		—
Interest rate and maturity concession	1	—	—	148		—		—		156		—		—		30		—		—
Commercial:
Maturity concession	—	6	—	—		2,973		—		—		2,973		—		—		1,400		—
Home equity:
Interest rate and maturity concession	1	—	—	315		—		—		315		—		—		—		—		—
Total	5	6	1	$	895	$	2,973	$	74	$	914	$	2,973	$	78	$	45	$	1,400	$	27

Summary of Impaired Loan Balances and Associated Allowance by Portfolio Segment

The following is a summary of impaired loan balances and the associated allowance by portfolio segment as of and for the year ended December 31, 2017, 2016 and 2015:

	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2017:
With related allowance recorded:
Residential real estate	$	3,858	$	3,858	$	568	$	3,177	$	131
Commercial real estate	5,422		5,422		1,441		8,900		22
Commercial	—		—		—		31		—
Home equity	—		—		—		125		—
Consumer	—		—		—		—		—
HPFC	—		—		—		24		—
Ending balance	9,280		9,280		2,009		12,257		153
Without related allowance recorded:
Residential real estate	1,313		1,673		—		1,345		15
Commercial real estate	777		1,084		—		1,132		29
Commercial	1,791		2,964		—		1,920		10
Home equity	429		495		—		310		8
Consumer	—		—		—		2		—
HPFC	—		—		—		—		—
Ending balance	4,310		6,216		—		4,709		62
Total impaired loans	$	13,590	$	15,496	$	2,009	$	16,966	$	215
December 31, 2016:
With related allowance recorded:
Residential real estate	$	3,019	$	3,019	$	483	$	3,088	$	106
Commercial real estate	11,443		11,443		1,373		5,165		—
Commercial	—		—		—		762		—
Home equity	299		299		86		305		—
Consumer	—		—		—		—		—
HPFC	97		97		65		98		—
Ending balance	14,858		14,858		2,007		9,418		106
Without related allowance recorded:
Residential real estate	1,329		1,800		—		2,057		9
Commercial real estate	1,874		2,369		—		2,214		51
Commercial	2,028		3,209		—		2,507		16
Home equity	158		368		—		180		—
Consumer	7		10		—		12		—
HPFC	—		—		—		—		—
Ending balance	5,396		7,756		—		6,970		76
Total impaired loans	$	20,254	$	22,614	$	2,007	$	16,388	$	182

	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2015:
With related allowance recorded:
Residential real estate	$	3,191	$	3,191	$	544	$	6,064	$	112
Commercial real estate	1,825		1,857		644		1,753		—
Commercial	156		156		92		945		2
Home equity	303		303		89		900		—
Consumer	—		—		—		195		—
HPFC	—		—		—		—		—
Ending balance	5,475		5,507		1,369		9,857		114
Without related allowance recorded:
Residential real estate	2,835		4,353		—		2,175		8
Commercial real estate	2,785		3,426		—		2,719		65
Commercial	3,781		4,325		—		1,412		17
Home equity	285		688		—		369		—
Consumer	74		150		—		20		—
HPFC	—		—		—		—		—
Ending balance	9,760		12,942		—		6,695		90
Total impaired loans	$	15,235	$	18,449	$	1,369	$	16,552	$	204

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Goodwill (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in goodwill for the year ended December 31, 2017 and 2016 for each reporting unit are shown in the table below:

	Banking			Financial Services			Total
Balance as of January 1, 2016:
Goodwill	$	91,753		$	7,474		$	99,227
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	91,753			3,904			95,657
Measurement-period adjustment (Note 2)	(960		)	—			(960		)
Balance as of December 31, 2016:
Goodwill	90,793			7,474			98,267
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	$	90,793		$	3,904		$	94,697
Balance as of January 1 and December 31, 2017:
Goodwill	$	90,793		$	7,474		$	98,267
Accumulated impairment losses	—			(3,570		)	(3,570		)
Reported goodwill	$	90,793		$	3,904		$	94,697

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Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Other Intangible Assets [Abstract]

Schedule of Finite-Lived Intangible Assets

The gross carrying amount and accumulated amortization of other intangible assets were as follows at the periods indicated:

	December 31,
	2017							2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core deposit intangible	$	23,908	$	(18,953	)	$	4,955	$	23,908	$	(17,220	)	$	6,688
Trust relationship intangible	753		(753		)	—		753		(677		)	76
Total	$	24,661	$	(19,706	)	$	4,955	$	24,661	$	(17,897	)	$	6,764

Schedule of Expected Amortization Schedule

The following table reflects the expected amortization schedule for other intangible assets over the period of estimated economic benefit (assuming no additional intangible assets are created or impaired):

	Core Deposit Intangible
2018	$	725
2019	705
2020	682
2021	655
2022	625
Thereafter	1,563
Total	$	4,955

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Premises and Equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of Premises and Equipment

Depreciation and amortization expense for the periods indicated were as follows:

		For The Year Ended December 31,
Fixed Asset Type	Income Statement Line Item	2017		2016		2015
Equipment and data	Furniture, equipment and data processing	$	1,874	$	1,942	$	1,620
Premises	Net occupancy costs	1,643		1,757		1,140
Software	Furniture, equipment and data processing	244		275		337
Equipment, data and premises	Merger and acquisition costs	—		452		517
Total		$	3,761	$	4,426	$	3,614

Details of premises and equipment, at cost, for the periods indicated, were as follows:

	2017			2016
Land and land improvements	$	2,985		$	3,012
Buildings and leasehold improvements	37,054			36,958
Furniture, fixtures and equipment	36,053			34,043
Total cost	76,092			74,013
Accumulated depreciation and amortization	(34,201		)	(31,140		)
Net premises and equipment	$	41,891		$	42,873

Schedule of Capital and Operating Lease Obligations

At December 31, 2017, under current operating and capital lease contracts, the Company had the following schedule of future minimum lease payments:

	Operating		Capital
2018	$	1,429	$	126
2019	1,394		126
2020	888		126
2021	671		130
2022	484		131
Thereafter	1,531		425
Total minimum lease payments	$	6,397	1,064
Less: amount representing interest(1)			273
Present value of net minimum lease payments(2)			$	791

(1) Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate at lease inception.

(2) Reflects the liability reported within short- and long-term borrowings on the consolidated statements of condition. At December 31, 2017 and 2016, the capital lease liability was $791,000 and $858,000, respectively.

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Mortgage Banking (Tables)

12 Months Ended

Dec. 31, 2017

Transfers and Servicing [Abstract]

Schedule of Mortgage Servicing Rights Capitalized and Amortized

The following summarizes servicing assets capitalized and amortized, along with the activity in the related valuation allowance:

	As of and For The Year Ended December 31,
	2017			2016			2015
Servicing Assets:
Balance at beginning of year	$	1,210		$	2,161		$	493
Capitalized servicing right fees upon sale(1)	22			9			294
Acquired in connection with acquisition of SBM, at fair value	—			—			1,608
Amortization charged against mortgage servicing fee income(1)	(430		)	(734		)	(231		)
Valuation adjustment	223			(226		)	(3		)
Balance at end of year	$	1,025		$	1,210		$	2,161
Valuation Allowance:
Balance at beginning of year	$	(230	)	$	(4	)	$	(1	)
(Increase) decrease in impairment reserve(1)	223			(226		)	(3		)
Balance at end of year	$	(7	)	$	(230	)	$	(4	)
Fair value, beginning of year	$	1,701		$	2,947		$	1,447
Fair value, end of year	$	1,766		$	1,701		$	2,947

(1) Reported within mortgage banking income, net on the Company's consolidated statements of income.

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Deposits (Tables)

12 Months Ended

Dec. 31, 2017

Deposits [Abstract]

Schedule Of Deposit Maturities

The following is a summary of scheduled maturities of CDs as of December 31, 2017:

	Retail		Brokered		Total
2018	$	239,936	$	—	$	239,936
2019	110,867		—		110,867
2020	62,944		7,000		69,944
2021	32,208		—		32,208
2022	19,816		—		19,816
Thereafter	9,239		—		9,239
Total	$	475,010	$	7,000	$	482,010

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Borrowings (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Summary of Short term and Long term Borrowings and Subordinated Debentures

The following table summarizes the Company's short term and long term borrowings, and subordinated debentures as presented on the consolidated statements of condition for the periods indicated:

	December 31, 2017				Contractual Maturity												December 31, 2016
	Outstanding Balance		Weighted Average Rate		2018		2019		2020		2021		2022		Thereafter		Outstanding Balance		Weighted Average Rate
Short-Term Borrowings:
FHLBB borrowings	$	250,000			$	250,000	$	—	$	—	$	—	$	—	$	—	$	210,000
Customer repurchase agreements	244,646				244,646		—		—		—		—		—		225,605
FHLBB and correspondent bank overnight borrowings	47,150				47,150		—		—		—		—		—		89,450
Wholesale repurchase agreements	—				—		—		—		—		—		—		5,007
Capital lease obligation	71				71		—		—		—		—		—		67
Total short-term borrowings	$	541,867	1.10	%	$	541,867	$	—	$	—	$	—	$	—	$	—	$	530,129	0.74	%
Long-Term Borrowings:
FHLBB borrowings	$	10,000	1.87	%	$	—	$	—	$	10,000	$	—	$	—	$	—	$	10,000	1.87	%
Capital lease obligation	720		4.18	%	—		76		81		90		98		375		791		4.31	%
Total long-term borrowings	$	10,720	2.03	%	$	—	$	76	$	10,081	$	90	$	98	$	375	$	10,791	2.05	%
Subordinated Debentures:
Subordinated debentures(1)	$	14,580	5.50	%	$	—	$	—	$	—	$	—	$	—	$	14,580	$	14,526	5.50	%
CCTA	36,083		5.48	%	—		—		—		—		—		36,083		36,083		5.50	%
UBCT	8,248		6.75	%	—		—		—		—		—		8,248		8,146		6.85	%
Total subordinated debentures	$	58,911	5.66	%	$	—	$	—	$	—	$	—	$	—	$	58,911	$	58,755	5.69	%

(1) Presented net of debt issuance costs of $420,000 and $474,000 at December 31, 2017 and 2016, respectively.

Schedule of Federal Home Loan Bank Advances

At December 31, 2017, the terms of the Company's outstanding FHLBB borrowings were as follows:

Balance Sheet Classification	Outstanding Balance		Maturity Date	Interest Rate Range	Next Call Date	Call Amount
Short-Term Borrowings	$	200,000	January 2018	1.45% - 1.63%	N/A	$	—
Short-Term Borrowings	$	50,000	February 2018	1.54%	N/A	$	—
Long-Term Borrowings	$	10,000	April 2020	1.87%	N/A	$	—

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Repurchase Agreements (Tables)

12 Months Ended

Dec. 31, 2017

Banking and Thrift [Abstract]

Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets

The tables below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings and types of collateral at December 31, 2017 and 2016:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
December 31, 2017
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	630	$	—	$	—	$	—	$	630
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	98,460		—		—		—		98,460
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	145,556		—		—		—		145,556
Total Customer Repurchase Agreements	244,646		—		—		—		244,646
Total Repurchase Agreements(1)	$	244,646	$	—	$	—	$	—	$	244,646
December 31, 2016
Customer Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	117,784	$	—	$	—	$	—	$	117,784
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	107,821		—		—		—		107,821
Total Customer Repurchase Agreements	225,605		—		—		—		225,605
Wholesale Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	—		—		3,715		—		3,715
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	—		—		1,292		—		1,292
Total Wholesale Repurchase Agreements	—		—		5,007		—		5,007
Total Repurchase Agreements(1)	$	225,605	$	—	$	5,007	$	—	$	230,612

(1) Presented within short-term borrowings on the consolidated statements of condition.

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Income Tax Expense

The current and deferred components of income tax expense on the consolidated statements of income were as follows:

	For The Year Ended December 31,
	2017			2016			2015
Current:
Federal	$	14,529		$	17,854		$	7,956
State	1,289			930			71
	15,818			18,784			8,027
Deferred:
Change in federal corporate income tax rate(1)	14,263			—			—
Federal	4,117			(1,258		)	1,356
State	(320		)	(54		)	524
	18,060			(1,312		)	1,880
Income tax expense	$	33,878		$	17,472		$	9,907

Reconciliation of Expected Income Tax Benefit Computed Using Federal Statutory Income Tax Rate

The income tax expense differs from the amount computed by applying the statutory federal income tax rate as a result of the following:

	For The Year Ended December 31,
	2017			2016			2015
Computed tax expense	$	21,824		$	20,139		$	10,801
Increase (reduction) in income taxes resulting from:
Change in federal corporate income tax rate	14,263			—			—
Tax exempt income	(1,291		)	(1,312		)	(1,092		)
Income from life insurance	(829		)	(908		)	(588		)
State taxes, net of federal benefit	630			565			373
Share-based awards(1)	(390		)	(701		)	—
Low income housing credits	(366		)	(376		)	(359		)
Non-deductible acquisition-related costs	—			—			467
Other	37			65			305
Income tax expense	$	33,878		$	17,472		$	9,907
Income before income taxes	$	62,354		$	57,539		$	30,859
Effective tax rate	54.3		%	30.4		%	32.1		%

Schedule of Deferred Tax Assets and Deferred Tax Liabilities

Temporary differences between the financial statements carrying amounts and the tax bases of assets and liabilities gave rise to the following deferred tax assets and liabilities:

	December 31,
	2017(1)					2016(2)
	Asset		Liability			Asset		Liability
Net operating loss and tax credit carryforward	$	12,078	$	—		$	20,977	$	—
Allowance for loan losses	5,201		—			8,094		—
Pension and other benefits	3,363		—			5,141		—
Net unrealized losses on AFS securities	2,821		—			3,227		—
Net unrealized losses on derivative instruments	1,623		—			3,066		—
Deferred compensation and benefits	1,199		—			1,791		—
Net unrealized losses on postretirement plans	1,092		—			1,147		—
Purchase accounting and deposit premium	461		—			1,430		—
Depreciation	—		(2,857		)	—		(4,520		)
Deferred loan origination fees	—		(1,510		)	—		(2,046		)
Other	—		(695		)	956		—
	27,838		(5,062		)	45,829		(6,566		)
Valuation allowance on deferred tax assets			—					—
Net deferred tax assets			$	22,776				$	39,263

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Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2017

Stockholders' Equity Note [Abstract]

Schedule of Compliance with Regulatory Capital Requirements

The following table presents the Company and Bank's regulatory capital ratios at the periods indicated:

	December 31, 2017				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions		December 31, 2016				Minimum Regulatory Capital Required For Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions
	Amount		Ratio						Amount		Ratio
Camden National Corporation:
Total risk-based capital ratio	$	396,451	14.14	%	9.25	%	N/A		$	368,856	14.04	%	8.63	%	N/A
Tier I risk-based capital ratio	357,261		12.74	%	7.25	%	N/A		330,729		12.59	%	6.63	%	N/A
Common equity Tier I risk-based capital ratio	316,677		11.30	%	5.75	%	N/A		296,120		11.27	%	5.13	%	N/A
Tier I leverage capital ratio	357,261		9.07	%	4.00	%	N/A		330,729		8.83	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	369,540	13.18	%	9.25	%	10.00	%	$	340,908	12.92	%	8.63	%	10.00	%
Tier I risk-based capital ratio	345,350		12.32	%	7.25	%	8.00	%	317,782		12.05	%	6.63	%	8.00	%
Common equity Tier I risk-based capital ratio	345,350		12.32	%	5.75	%	6.50	%	317,782		12.05	%	5.13	%	6.50	%
Tier I leverage capital ratio	345,350		8.80	%	4.00	%	5.00	%	317,782		8.54	%	4.00	%	5.00	%

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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

The following is an analysis of basic and diluted EPS, reflecting the application of the two-class method, as described below:

	For The Year Ended December 31,
	2017			2016			2015
Net income	$	28,476		$	40,067		$	20,952
Dividends and undistributed earnings allocated to participating securities(1)	(118		)	(189		)	(59		)
Net income available to common shareholders	$	28,358		$	39,878		$	20,893
Weighted-average common shares outstanding for basic EPS	15,509,665			15,422,160			12,031,294
Dilutive effect of stock-based awards(2)	78,682			82,079			43,285
Weighted-average common and potential common shares for diluted EPS	15,588,347			15,504,239			12,074,579
Earnings per common share:
Basic EPS	$	1.83		$	2.59		$	1.73
Diluted EPS	$	1.82		$	2.57		$	1.73
Awards excluded from the calculation of diluted EPS(3):
Stock options	—			—			19,875

(1) Represents dividends paid and undistributed earnings allocated to nonvested stock-based awards that contain non-forfeitable rights to dividends.

(2) Represents the effect of the assumed exercise of stock options, and vesting of restricted shares and restricted stock units, and issuance of LTIP awards that have met the performance criteria, utilizing the treasury stock method.

(3) Represents stock-based awards not included in the computation of potential common shares for purposes of calculating diluted EPS as the exercise prices were greater than the average market price of the Company's common stock, and, therefore, are considered anti-dilutive.

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Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Option Pricing Assumptions and Estimated Fair Value

The following table presents the option pricing assumptions and the estimated fair value of the options using these assumptions for grants made for the year ended:

	December 31,
	2017			2016			2015
Weighted-average dividend yield	—		%	3.12		%	3.01		%
Weighted-average risk-free interest rate	—		%	1.52		%	1.50		%
Weighted-average expected volatility	—		%	29.64		%	31.85		%
Weighted-average expected life (in years)	0.0			5.3			5.3
Weighted-average fair value of options granted	$	—		$	5.17		$	5.87

Schedule of Stock Option Activity

Stock option activity for the year ended December 31, 2017 was as follows:

	Number of Options		Weighted-Average Exercise Price per Option		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Options outstanding at January 1, 2017	58,743		$	20.38
Granted	—		—
Exercised	(11,841	)	17.50
Forfeited	(2,400	)	26.23
Expired	(1,425	)	23.11
Options outstanding at December 31, 2017	43,077		$	21.00	3.45	$	910
Options exercisable at December 31, 2017	39,627		$	20.58	3.11	$	854

A summary of the status of the Company’s nonvested stock options as of December 31, 2017 and changes during the year then ended was as follows:

	Options		Weighted-Average Grant Date Fair Value per Option
Nonvested at January 1, 2017	9,450		$	6.59
Granted	—		—
Vested	(3,600	)	7.80
Forfeited	(2,400	)	5.48
Nonvested at December 31, 2017	3,450		$	6.11

Schedule of Compensation Expense

Compensation expense and the related income tax benefit recognized in connection with the MSPP awards was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	97	$	102	$	66
Income tax benefit	21		36		23
Fair value of grants vested	91		57		92

Compensation expense and the related income tax benefit recognized in connection with the restricted stock awards was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	762	$	703	$	327
Income tax benefit	164		246		114
Fair value of grants vested	702		603		341

Compensation expense recognized in connection with the DCRP was presented in the following table:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	97	$	81	$	62
Related income tax benefit	21		28		22
Fair value of grants vested	90		75		59

Compensation expense for the LTIP's performance-based awards was presented in the following table:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense(1)	$	370	$	1,080	$	330
Related income tax benefit	80		378		116
Fair value of grants vested	843		725		412

Compensation expense and the related income tax benefit recognized in connection with the restricted stock units was as follows for the periods indicated:

	For The Year Ended December 31,
	2017		2016		2015
Compensation expense	$	124	$	—	$	—
Income tax benefit	27		—		—
Fair value of grants vested	—		—		—

Summary of Nonvested Share Awards Activity

Restricted stock award activity for the year ended December 31, 2017 is as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	47,518		$	28.16
Granted	16,185		42.39
Vested	(22,553	)	31.14
Forfeited	(4,825	)	28.93
Nonvested at December 31, 2017	36,325		$	32.56	2.2	$	1,530	$	787

DCRP award activity for the year ended December 31, 2017 was as follows:

	Number of Deferred Stock Awards		Weighted-Average Grant Date Fair Value per Award		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	14,244		$	23.65
Granted	2,772		42.66
Vested	(2,776	)	32.50
Forfeited	(4,192	)	25.88
Nonvested at December 31, 2017	10,048		$	25.52	9.2	$	423	$	229

MSPP award activity for the year ended December 31, 2017 was as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	26,699		$	7.85
Granted	8,088		13.73
Vested	(11,777	)	7.73
Forfeited	(2,791	)	11.49
Nonvested at December 31, 2017	20,219		$	9.77	1.0	$	431	$	54

LTIP performance-based award activity for the year ended December 31, 2017 was as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	52,737		$	27.01
Granted	16,830		41.39
Vested	(32,323	)	26.09
Forfeited	(5,621	)	26.97
Nonvested at December 31, 2017	31,623		$	35.60	1.7	$	1,332	$	291

Restricted stock unit activity for the year ended December 31, 2017 was as follows:

	Number of Units		Weighted-Average Grant Date Fair Value per Unit		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2017	—		$	—
Granted	18,762		43.05
Vested	—		—
Forfeited	(1,285	)	43.11
Nonvested at December 31, 2017	17,477		$	43.04	4.6	$	736	$	620

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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Schedule of Changes in Benefit Obligation and Plan Assets

The following table summarizes changes in the benefit obligation and plan assets for (i) SERP and (ii) the other postretirement benefit plan as of December 31, 2017 and 2016:

	SERP						Other Postretirement Benefits
	2017			2016			2017			2016
Benefit obligations:
Beginning of year	$	11,523		$	11,052		$	3,635		$	3,447
Service cost	335			308			53			59
Interest cost	452			432			144			151
Actuarial loss	1,955			219			110			143
Benefits paid	(475		)	(488		)	(151		)	(165		)
End of year	13,790			11,523			3,791			3,635
Fair value of plan assets:
Beginning of year	—			—			—			—
Employer contributions	475			488			151			165
Benefits paid	(475		)	(488		)	(151		)	(165		)
End of year	—			—			—			—
Unfunded status at end of year(1)	$	13,790		$	11,523		$	3,791		$	3,635
Amounts recognized in AOCI, net of tax:
Net actuarial loss	$	3,504		$	1,791		$	654		$	495
Prior service credit	—			—			(170		)	(156		)
Total	$	3,504		$	1,791		$	484		$	339

(1) Presented within other liabilities on the consolidated statements of condition.

Schedule of Net Period Benefit Cost and Other Amounts Recognized in Other Comprehensive Income

The components of net periodic benefit cost and other amounts recognized in OCI, before taxes, were as follows:

	SERP									Other Postretirement Benefits
	2017			2016			2015			2017			2016			2015
Net periodic benefit cost:
Service cost	$	335		$	308		$	307		$	53		$	59		$	62
Interest cost	452			432			424			144			151			117
Recognized net actuarial loss	246			220			218			41			30			24
Amortization of prior service cost (credit)	—			7			19			(24		)	(22		)	(22		)
Net periodic benefit cost	1,033			967			968			214			218			181
Changes in funded status recognized in OCI, before taxes:
Net actuarial (gain) loss arising during period	1,955			219			(32		)	110			143			92
Reclassifications to net period benefit cost:
Amortization of net unrecognized actuarial loss	(246		)	(220		)	(218		)	(41		)	(30		)	(24		)
Amortization of prior service (cost) credit	—			(7		)	(19		)	24			22			22
Total recognized in OCI, before taxes	1,709			(8		)	(269		)	93			135			90
Total recognized in net periodic benefit cost and OCI, before taxes	$	2,742		$	959		$	699		$	307		$	353		$	271

Schedule of Assumptions Used in Determining Benefit Obligations and Net Period Benefit Costs

The following assumptions were used in determining benefit obligations and net period benefit costs:

	SERP						Other Postretirement Benefits
	2017		2016		2015		2017		2016		2015
Weighted-average assumptions as of end of year:
Discount rate for benefit obligation	3.60	%	4.00	%	4.00	%	3.55	%	4.00	%	4.50	%
Discount rate for net periodic benefit cost	4.00	%	4.00	%	4.00	%	4.00	%	4.50	%	4.00	%
Rate of compensation increase for benefit obligation	5.00	%	4.00	%	4.00	%	—		—		—
Rate of compensation increase for net periodic benefit cost	5.00	%	4.00	%	4.00	%	—		—		—
Health care cost trend rate assumed for future years	—		—		—		6.50	%	7.00	%	7.00	%

Schedule of Estimated Future Benefit Payments

The expected benefit payments for the next ten years are presented in the following table:

	SERP	Other Postretirement Benefits
2018	473	156
2019	477	168
2020	486	173
2021	536	175
2022	566	187
2023-2027	2,246	1,061

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Other Non-Interest Income and Expenses (Tables)

12 Months Ended

Dec. 31, 2017

Other Noninterest Expenses [Abstract]

Schedule of Other Non-Interest Expenses

Detail of other income included in the consolidated statements of income is as follows:

	For The Year Ended  December 31,
Other income	2017		2016		2015
Customer loan swap fee income(1)	$	1,574	$	2,104	$	1,514
Other income	1,545		4,830		2,363
Total	$	3,119	$	6,934	$	3,877

(1) Fee income recognized upon completion of customer loan swaps. Refer to Note 18 for further discussion.

Detail of other expenses included in the consolidated statements of income is as follows:

	For The Year Ended  December 31,
Other expenses	2017		2016		2015
Donations and marketing	$	1,852	$	1,660	$	1,841
Employee-related costs(1)	1,710		1,616		1,437
Postage, freight, and courier	1,655		1,754		1,430
Other expenses	5,731		5,657		4,502
Total	$	10,948	$	10,687	$	9,210

(1) Employee-related costs include hiring, training, education, meeting and business travel costs.

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Commitments, Contingencies and Derivatives (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Summary of Contractual and Notional Amounts of Financial Instruments

The following is a summary of the contractual and notional amounts of the Company’s financial instruments:

	December 31,
	2017		2016
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	477,401	$	454,225
Commercial and commercial real estate	49,482		83,103
Residential	41,368		17,795
Letters of credit	2,848		2,580
Other commitments	523		432
Derivative Financial Instruments:
Customer loan swaps	$	703,336	$	532,526
FHLBB advance interest rate swaps	50,000		50,000
Junior subordinated debt interest rate swaps	43,000		43,000
Fixed-rate mortgage interest rate lock commitments	21,746		15,249
Forward delivery commitments	8,065		15,125

Schedule of Interest Rate Derivatives

Our pipeline of mortgage loans with fixed-rate interest rate lock commitments were as follows for the periods indicated:

		December 31,
		2017					2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other assets	$	19,886	$	307		$	12,310	$	202
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	1,860		(22		)	2,939		(15		)
Total		$	21,746	$	285		$	15,249	$	187

The following table presents the total positions, notional and fair value of the Bank's customer loans swaps with its commercial customers and the corresponding interest rate swap agreements with counterparty for the periods indicated:

		December 31,
		2017						2016
	Balance Sheet Location	Number of Positions	Notional		Fair Value			Number of Positions	Notional		Fair Value
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	42	$	226,884	$	(5,036	)	50	$	266,263	$	(1,945	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	23	124,784		1,799			—	—		—
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	65	351,668		3,237			50	266,263		1,945
Total		130	$	703,336	$	—		100	$	532,526	$	—

Summary of Contractual and Notional Amounts of Company's Financial Instruments

The Company's forward delivery commitments on loans held for sale was as follows for the periods indicated:

		December 31,
		2017					2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best-effort")	Other assets	$	6,692	$	158		$	14,250	$	587
Forward delivery commitments ("best-effort")	Accrued interest and other liabilities	1,373		(16		)	875		(309		)
Total		$	8,065	$	142		$	15,125	$	278

The details of the junior subordinated debt interest rate swaps for the periods indicated were as follows:

						December 31,
						2017			2016
Notional  Amount		Trade  Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)			Fair Value(1)
$	10,000	3/18/2009	6/30/2021	3-Month USD LIBOR	5.09%	$	(527	)	$	(806	)
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	(2,133		)	(2,321		)
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	(2,129		)	(2,290		)
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	4.35%	(1,137		)	(1,211		)
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	4.14%	(1,645		)	(1,744		)
$	43,000					$	(7,571	)	$	(8,372	)

(1) Presented within accrued interest and other liabilities on the consolidated statements of condition.

The details of the FHLBB advance interest rate swaps for the periods indicated were as follows:

						December 31,
						2017		2016
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)		Fair Value(2)
$	25,000	2/25/2015	2/25/2018	1-Month USD LIBOR	1.54%	$	20	$	(152	)
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	1		(237		)
$	50,000					$	21	$	(389	)

(1) Presented within other assets on the consolidated statements of condition.

(2) Presented within accrued interest and other liabilities on the consolidated statements of condition.

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss)

The table below presents the effect of the Company’s derivative financial instruments included in OCI and current earnings for the periods indicated:

	For The Year Ended December 31,
	2017			2016			2015
Derivatives designated as cash flow hedges
Effective portion of unrealized losses recognized within AOCI during the period, net of tax	$	(248	)	$	(637	)	$	(1,533	)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	1,592		$	2,026		$	1,695

(1) Reclassified into the consolidated statements of income within interest expense.

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Fair Value (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of December 31, 2017 and 2016, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
December 31, 2017
Financial assets:
Loans held for sale	$	8,103	$	—	$	8,103	$	—
AFS securities:
Obligations of states and political subdivisions	7,335		—		7,335		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	503,302		—		503,302		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	272,799		—		272,799		—
Subordinated corporate bonds	5,657		—		5,657		—
Equity securities	806		—		806		—
Customer loan swaps	5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	307		—		307		—
Forward delivery commitments	158		—		158		—
FHLBB advance interest rate swaps	21		—		21		—
Financial liabilities:
Junior subordinated debt interest rate swaps	7,571		—		7,571		—
Customer loan swaps	5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	22		—		22		—
Forward delivery commitments	16		—		16		—
December 31, 2016
Financial assets:
Loans held for sale	$	14,836	$	—	$	14,836	$	—
AFS securities:
Obligations of states and political subdivisions	9,001		—		9,001		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	480,622		—		480,622		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	283,890		—		283,890		—
Subordinated corporate bonds	5,613		—		5,613		—
Equity securities	741		—		741		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	202		—		202		—
Forward delivery commitments	587		—		587		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,372		—		8,372		—
FHLBB advance interest rate swaps	389		—		389		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	15		—		15		—
Forward delivery commitments	309		—		309		—

Summary of Assets Measured at Fair Value on Non Recurring Basis

The table below highlights financial and non-financial assets measured and recorded at fair value on a non-recurring basis as of December 31, 2017 and 2016:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
December 31, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,696	$	—	$	—	$	3,696
Servicing assets(1)	—		—		—		—
Non-financial assets:
OREO	130		—		—		130
December 31, 2016
Financial assets:
Collateral-dependent impaired loans	$	500	$	—	$	—	$	500
Servicing assets(1)	1,090		—		—		1,090
Non-financial assets:
OREO	922		—		—		922

(1) Represents mortgage serving assets deemed to be impaired and a valuation allowance was established to carry at fair value at December 31, 2017 and 2016.

Valuation Methodology and Unobservable Inputs for Level Three Assets Measured at Fair Value on Non Recurring Basis

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a non-recurring basis at December 31, 2017 and 2016:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
December 31, 2017
Collateral-dependent impaired loans:
Partially charged-off	$	86	Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(18%)
				Estimated selling costs	0 - 10%	(6%)
Specifically reserved	3,610		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
OREO	130		Market approach appraisal of collateral	Management adjustment of appraisal	20%	(20%)
				Estimated selling costs	10%	(10%)
December 31, 2016
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	0 - 10%	(5%)
Specifically reserved	334		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(13%)
				Estimated selling costs	10%	(10%)
OREO	922		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 73%	(7%)
				Estimated selling costs	10%	(10%)

Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities at December 31, 2017:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	102,971	$	102,971	$	102,971	$	—	$	—
AFS securities	789,899		789,899		—		789,899		—
HTM securities	94,073		94,913		—		94,913		—
Loans held for sale	8,103		8,103		—		8,103		—
Residential real estate loans(1)	853,283		853,056		—		—		853,056
Commercial real estate loans(1)	1,152,160		1,115,618		—		—		1,115,618
Commercial loans(1)(2)	413,898		401,902		—		—		401,902
Home equity loans(1)	321,011		318,230		—		—		318,230
Consumer loans(1)	17,916		17,335		—		—		17,335
Servicing assets	1,025		1,766		—		1,766		—
Interest receivable	9,595		9,595		—		9,595		—
Customer loan swaps	5,036		5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	307		307		—		307		—
Forward delivery commitments	158		158		—		158		—
FHLBB advance interest rate swaps	21		21		—		21		—
Financial liabilities:
Deposits	$	3,000,491	$	2,995,269	$	—	$	2,995,269	$	—
Short-term borrowings	541,867		541,683		—		541,683		—
Long-term borrowings	10,720		10,699		—		10,699		—
Subordinated debentures	58,911		44,333		—		44,333		—
Interest payable	564		564		—		564		—
Junior subordinated debt interest rate swaps	7,571		7,571		—		7,571		—
Customer loan swaps	5,036		5,036		—		5,036		—
Fixed-rate mortgage interest rate lock commitments	22		22		—		22		—
Forward delivery commitments	16		16		—		16		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities at December 31, 2016:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	87,707	$	87,707	$	87,707	$	—	$	—
AFS securities	779,867		779,867		—		779,867		—
HTM securities	94,609		94,596		—		94,596		—
Loans held for sale	14,836		14,836		—		14,836		—
Residential real estate loans(1)	798,334		800,122		—		—		800,122
Commercial real estate loans(1)	1,038,626		1,006,249		—		—		1,006,249
Commercial loans(1)(2)	389,624		391,493		—		—		391,493
Home equity loans(1)	327,713		327,292		—		—		327,292
Consumer loans(1)	17,151		16,845		—		—		16,845
Servicing assets	1,210		1,701		—		1,701		—
Interest receivable	8,654		8,654		—		8,654		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	202		202		—		202		—
Forward delivery commitments	587		587		—		587		—
Financial liabilities:
Deposits	$	2,828,529	$	2,826,484	$	—	$	2,826,484	$	—
Short-term borrowings	530,129		530,435		—		530,435		—
Long-term borrowings	10,791		10,836		—		10,836		—
Subordinated debentures	58,755		41,660		—		41,660		—
Interest payable	534		534		—		534		—
Junior subordinated debt interest rate swaps	8,372		8,372		—		8,372		—
FHLBB advance interest rate swaps	389		389		—		389		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate mortgage interest rate lock commitments	15		15		—		15		—
Forward delivery commitments	309		309		—		309		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

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Parent Company Financial Statements (Tables)

12 Months Ended

Dec. 31, 2017

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Statements of Condition

Following are the condensed statements of condition, income and cash flows for the Company's parent company:

STATEMENTS OF CONDITION

	December 31,
	2017		2016
ASSETS
Cash	$	29,365	$	29,905
Investment in subsidiary	444,235		429,100
Receivable from subsidiary	107		107
Other assets	14,806		12,420
Total assets	$	488,513	$	471,532
LIABILITIES AND SHAREHOLDERS’ EQUITY
Subordinated debentures	$	58,911	$	58,755
Due to subsidiary	17		37
Other liabilities	26,172		21,193
Shareholders’ equity	403,413		391,547
Total liabilities and shareholders’ equity	$	488,513	$	471,532

Condensed Statements of Income

STATEMENTS OF INCOME

	For The Year Ended December 31,
	2017			2016		2015
Operating Income
Dividend income from subsidiary	$	16,800		$	16,000	$	39,200
Other income (loss)	145			239		(18		)
Total operating income	16,945			16,239		39,182
Operating Expenses
Interest on borrowings	3,408			3,415		2,734
Fees to Bank	160			160		160
Other operating expenses	592			748		469
Total operating expenses	4,160			4,323		3,363
Income before equity in undistributed earnings of subsidiaries and income taxes	12,785			11,916		35,819
Equity in undistributed income (losses) of subsidiaries	17,405			26,773		(15,999		)
Income before income taxes	30,190			38,689		19,820
Income tax (expense) benefit	(1,714		)	1,378		1,132
Net Income	$	28,476		$	40,067	$	20,952

Condensed Statements of Cash Flows

STATEMENTS OF CASH FLOWS

	For The Year Ended December 31,
	2017			2016			2015
Operating Activities
Net income	$	28,476		$	40,067		$	20,952
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed (income) losses of subsidiaries	(17,405		)	(26,655		)	4,573
Gain on sale of investment securities	(32		)	(4		)	—
(Increase) decrease in receivable from subsidiaries	—			1,819			(1,901		)
(Increase) decrease in other assets	(1,930		)	1,213			(2,175		)
Increase (decrease) in due to subsidiaries	(20		)	(1,179		)	1,216
Increase (decrease) in other liabilities	3,721			(2,519		)	320
Net cash provided by operating activities	12,810			12,742			22,985
Investing Activities
Acquisition of SBM, net of cash acquired	—			—			(25,319		)
Proceeds from sale of investment securities	110			84			—
Net cash provided by (used in) investing activities	110			84			(25,319		)
Financing Activities
Issuance of subordinated debt, net of issuance costs	—			—			14,464
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings and tax benefit	(606		)	894			753
Capital contribution from subsidiaries	1,469			1,997			836
Equity issuance costs	—			—			(612		)
Cash dividends paid on common stock and cash in-lieu paid for fractional shares due to stock split	(14,323		)	(12,393		)	(9,785		)
Net cash provided by (used in) financing activities	(13,460		)	(9,502		)	5,656
Net (decrease) increase in cash	(540		)	3,324			3,322
Cash at beginning of year	29,905			26,581			23,259
Cash at end of year	$	29,365		$	29,905		$	26,581

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Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Results of Operations

The following table presents a summary of the quarterly results of operations for the year ended:

	December 31,
	2017									2016
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter(1)			First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest income	$	32,414	$	33,940	$	34,710	$	35,040		$	31,981	$	32,775	$	32,594	$	32,276
Interest expense	4,559		5,314		5,550		5,381			4,029		4,271		4,222		4,032
Net interest income	27,855		28,626		29,160		29,659			27,952		28,504		28,372		28,244
Provision for credit losses	579		1,401		817		238			872		2,852		1,279		255
Non-interest income	8,572		9,888		10,299		9,840			7,917		10,552		11,001		10,151
Non-interest expense	21,428		22,158		21,825		23,099			22,909		22,330		22,149		22,508
Income before income taxes	14,420		14,955		16,817		16,162			12,088		13,874		15,945		15,632
Income tax expense	4,344		4,721		5,478		19,335			3,442		4,258		5,042		4,730
Net income (loss)	$	10,076	$	10,234	$	11,339	$	(3,173	)	$	8,646	$	9,616	$	10,903	$	10,902
Per common share:
Basic	$	0.65	$	0.66	$	0.72	$	(0.20	)	$	0.56	$	0.62	$	0.70	$	0.70
Diluted	$	0.64	$	0.66	$	0.72	$	(0.20	)	$	0.56	$	0.62	$	0.70	$	0.70

(1) In the fourth quarter of 2017, the Company recognized $14.3 million of additional income tax expense upon the revaluation of its deferred tax assets and liabilities upon enactment of the Tax Act on December 22, 2017, which lowered the federal corporate tax rate from 35.0% to 21.0%, effective January 1, 2018. The impact to fourth quarter 2017 basic and diluted EPS was $0.91 per share.

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Business and Summary of Significant Accounting Policies (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2017 USD ($) reporting_unit_level	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Feb. 28, 2018 USD ($)
Accounting Policy [Line Items]
Trading Securities		$ 0	$ 0
Equity Method Investment, Ownership Percentage		100.00%
Loans Held-for-sale		$ 8,103,000	14,836,000
Financing Receivable, Individually Evaluated for Impairment		$ 13,590,000	20,254,000	$ 15,235,000
Number of Reporting Unit Levels | reporting_unit_level		2
Goodwill impairment			0	0
BOLI single carrier percentage of Tier I capital		15.00%
BOLI CSV percentage of Tier I Capital		25.00%
HTM securities		$ 94,073,000	94,609,000
AFS securities		$ 789,899,000	779,867,000
Stockholders' Equity Note, Stock Split, Conversion Ratio	1.5	1.5
Minimum [Member]
Accounting Policy [Line Items]
Financing Receivable, Individually Evaluated for Impairment		$ 500,000	250,000
Finite-lived intangible asset, useful life (years)		5 years
Maximum [Member]
Accounting Policy [Line Items]
Finite-lived intangible asset, useful life (years)		10 years
Residential real estate
Accounting Policy [Line Items]
Term to maturity (years)		30 years
Financing Receivable, Individually Evaluated for Impairment		$ 5,171,000	$ 4,348,000	$ 6,026,000
Accumulated Other Comprehensive Income (Loss) | Subsequent Event [Member] | Accounting Standards Update 2018-02 [Member]
Accounting Policy [Line Items]
Reclassification adjustment					$ (3,500,000)
Retained Earnings [Member] | Subsequent Event [Member] | Accounting Standards Update 2018-02 [Member]
Accounting Policy [Line Items]
Reclassification adjustment					$ 3,500,000

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Mergers and Acquisitions (Details)		12 Months Ended
	Oct. 16, 2015 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($)	Sep. 14, 2016 $ / shares	Oct. 15, 2015
Business Acquisition [Line Items]
Equity interest issued		$ 0	$ 0	$ 110,551,000
Share Price | $ / shares					$ 31.75
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares | shares		3,450	9,450
Merger and acquisition costs		$ 0	$ 866,000	10,415,000
Goodwill		$ 94,697,000	94,697,000	95,657,000
Number of companies in integration		2
Payments of Stock Issuance Costs		$ 0	$ 0	$ 612,000
SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	$ 86,785,000
Business acquisition, percentage of voting interest acquired	100.00%					80.00%
Business Acquisition, Cash Consideration, Per Share Amount | $ / shares	$ 206.00
Business Acquisition, Stock for Stock Consideration, Conversion Ratio	8.132
Total consideration paid	$ 136,676,000
Cash	$ 26,125,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	4,124,643
Equity interest issued	$ 108,561,000
Share Price | $ / shares	$ 26.32
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares | shares	139,032
Non-compete agreement costs		$ 400,000
Goodwill	$ 49,891,000
Loans and loans held for sale	$ 628,030,000
Nonqualified Stock Options [Member] | SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition, Stock for Stock Consideration, Conversion Ratio	8.132
Equity interest issued	$ 1,990,000
Scenario, Adjustment [Member] | SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	960,000
Loans and loans held for sale	$ 137,000

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Mergers and Acquisitions - Estimated Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 16, 2015	Dec. 31, 2017	Dec. 31, 2016	Sep. 14, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Equity interest issued		$ 0	$ 0		$ 110,551
Goodwill		$ 94,697	$ 94,697		$ 95,657
Share Price				$ 31.75
SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Cash	$ 26,125
Equity interest issued	108,561
Total consideration paid	136,676
Loans and loans held for sale	628,030
Cash and due from banks	86,042
Investments	39,742
Deferred tax assets	25,782
Premises and equipment	23,944
OREO	729
Core deposit intangible assets	6,608
Other assets	5,408
Deposits and borrowings	721,186
Other liabilities	8,314
Total identified assets acquired and liabilities assumed, at fair value	86,785
Goodwill	$ 49,891
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	4,124,643
Share Price	$ 26.32
Nonqualified Stock Options [Member] | SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Equity interest issued	$ 1,990
Predecessor [Member] | SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Loans and loans held for sale	639,390
Cash and due from banks	86,042
Investments	39,716
Deferred tax assets	26,293
Premises and equipment	16,851
OREO	2,530
Core deposit intangible assets	0
Other assets	5,421
Deposits and borrowings	719,640
Other liabilities	8,512
Total identified assets acquired and liabilities assumed, at fair value	88,091
Scenario, Adjustment [Member] | SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Loans and loans held for sale	137
Cash and due from banks	0
Investments	0
Deferred tax assets	666
Premises and equipment	0
OREO	0
Core deposit intangible assets	0
Other assets	157
Deposits and borrowings	0
Other liabilities	0
Total identified assets acquired and liabilities assumed, at fair value	960
Estimate of Fair Value Measurement [Member] | Scenario, Adjustment [Member] | SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Loans and loans held for sale	(11,497)
Cash and due from banks	0
Investments	26
Deferred tax assets	(1,177)
Premises and equipment	7,093
OREO	(1,801)
Core deposit intangible assets	6,608
Other assets	(170)
Deposits and borrowings	1,546
Other liabilities	(198)
Total identified assets acquired and liabilities assumed, at fair value	$ (2,266)

XML

Mergers and Acquisitions - Pro Forma Information (Details)	12 Months Ended
	Dec. 31, 2016
SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Effective income tax rate (percent)	35.00%

XML

Mergers and Acquisitions Acquisition Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Labor and Related Expense	$ 49,965	$ 48,072	$ 37,220
Equipment And Software Expense	9,894	9,557	8,057
Occupancy, Net	6,884	7,088	5,695
Professional Fees	3,118	3,234	2,625
Other Noninterest Expense	10,948	10,687	9,210
Business Combination, Acquisition Related Costs	0	866	10,415
SBM Financial, Inc. [Member]
Business Acquisition [Line Items]
Labor and Related Expense	0	8
Equipment And Software Expense	0	279
Occupancy, Net	0	439
Professional Fees	0	80
Other Noninterest Expense	$ 0	$ 60
Business Acquisition One [Member]
Business Acquisition [Line Items]
Labor and Related Expense			3,240
Equipment And Software Expense			1,531
Occupancy, Net			1,237
Professional Fees			2,453
Other Noninterest Expense			$ 1,954

XML

Securities (Additional Information) (Details)	12 Months Ended
	Dec. 31, 2017 USD ($) security	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Schedule of Investments [Line Items]
Unrealized gains on securities available-for-sale included in accumulated other comprehensive income, net of deferred taxes	$ (10,300,000)	$ (6,085,000)
Unrealized gains on securities available-for-sale included in accumulated other comprehensive income, deferred taxes	$ 2,821,000	3,227,000
Number of investment securities which had unrealized losses for twelve months or longer | security	209
AFS and HTM securities in Continues Unrealized Loss Position	$ 741,200,000	658,500,000
AFS and HTM Securities Unrealized Loss Accumulated in Investments	14,500,000	13,200,000
Investment securities with unrealized losses for twelve months or longer	398,360,000	103,708,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	11,172,000	3,850,000
Investment securities with unrealized losses that are considered temporary	722,438,000	615,699,000
Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments	(14,261,000)	(12,536,000)
Other than temporary impairment losses		0
Federal Home Loan Bank Stock	18,300,000	17,800,000
Federal Reserve Bank Stock	5,400,000
Dividend income from subsidiary	1,100,000	1,000,000	$ 579,000
Carrying value of investments sold	19,500,000	28,800,000	12,400,000
Security pledged as collateral, amortized cost	702,500,000	597,300,000
Security pledged as collateral, fair value	$ 691,200,000	$ 589,700,000
Unrealized Loss as a Percent of Amortized Cost	2.00%	2.00%
Gross realized gains	$ 869,000	$ 125,000	221,000
Mortgage Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Investments [Line Items]
Investment securities with unrealized losses for twelve months or longer	398,400,000	103,700,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	11,200,000	3,900,000
Available-for-sale Securities [Member]
Schedule of Investments [Line Items]
Unrealized gains on securities available-for-sale included in accumulated other comprehensive income, deferred taxes	2,800,000	3,300,000
Gross realized gains	$ 855,000	$ 51,000	$ 4,000

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Securities (Summary of Amortized Costs and Estimated Fair Values of Available-For-Sale Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	$ 803,021	$ 789,229
Available-for-sale, Unrealized Gains	1,139	3,174
Available-for-sale, Unrealized Losses	(14,261)	(12,536)
AFS securities	789,899	779,867
Held-to-maturity Securities	94,073	94,609
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	1,077	618
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(237)	(631)
Held-to-maturity Securities, Fair Value	94,913	94,596
US Government Corporations and Agencies Securities [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities	94,073	94,609
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	1,077	618
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(237)	(631)
Held-to-maturity Securities, Fair Value	94,913	94,596
Obligations of states and political subdivisions [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	7,232	8,848
Available-for-sale, Unrealized Gains	103	153
Available-for-sale, Unrealized Losses	0	0
AFS securities	7,335	9,001
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	510,176	485,222
Available-for-sale, Unrealized Gains	597	2,515
Available-for-sale, Unrealized Losses	(7,471)	(7,115)
AFS securities	503,302	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	279,575	289,046
Available-for-sale, Unrealized Gains	14	265
Available-for-sale, Unrealized Losses	(6,790)	(5,421)
AFS securities	272,799	283,890
Corporate Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	5,484	5,481
Available-for-sale, Unrealized Gains	173	132
Available-for-sale, Unrealized Losses	0	0
AFS securities	5,657	5,613
Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	802,467	788,597
Available-for-sale, Unrealized Gains	887	3,065
Available-for-sale, Unrealized Losses	(14,261)	(12,536)
AFS securities	789,093	779,126
Equity Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	554	632
Available-for-sale, Unrealized Gains	252	109
Available-for-sale, Unrealized Losses	0	0
AFS securities	$ 806	$ 741

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Securities (Unrealized Gross Losses and Estimated Fair values of Investment Securities by Length of Time that Individual Securities in Each Category in Continuous Loss Position) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Fair Value - Less Than 12 Months	$ 324,078	$ 511,991
Unrealized Losses - Less Than 12 Months	(3,089)	(8,686)
Fair Value - 12 Months or More	398,360	103,708
Unrealized Losses - 12 Months or More	(11,172)	(3,850)
Fair Value	722,438	615,699
Unrealized Losses	(14,261)	(12,536)
Available-for-sale Securities, Amortized Cost Basis	803,021	789,229
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	1,139	3,174
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	9,317	42,805
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(57)	(631)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9,436	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(180)	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	18,753	42,805
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(237)	(631)
Obligations of U.S. government sponsored enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value - Less Than 12 Months	221,466	348,579
Unrealized Losses - Less Than 12 Months	(2,393)	(5,780)
Fair Value - 12 Months or More	233,971	29,496
Unrealized Losses - 12 Months or More	(5,078)	(1,335)
Fair Value	455,437	378,075
Unrealized Losses	(7,471)	(7,115)
Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Fair Value - Less Than 12 Months	102,612	163,412
Unrealized Losses - Less Than 12 Months	(696)	(2,906)
Fair Value - 12 Months or More	164,389	74,212
Unrealized Losses - 12 Months or More	(6,094)	(2,515)
Fair Value	267,001	237,624
Unrealized Losses	(6,790)	(5,421)
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	5,484	5,481
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	173	132
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	554	632
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	252	109
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	510,176	485,222
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	597	2,515
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	7,232	8,848
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	103	153
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	9,317
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(57)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9,436
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(180)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	18,753
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (237)
US Government Corporations and Agencies Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		42,805
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(631)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value		42,805
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss		$ (631)

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Securities (Company's Sales of Securities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Unrealized Loss as a Percent of Amortized Cost	2.00%	2.00%
Proceeds from sales of securities	$ 20,366	$ 28,850	$ 12,426
Gross realized gains	869	125	221
Gross realized losses	$ (14)	$ (74)	(217)
Previously recorded OTTI			$ (204)

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Securities (Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Available-for-sale, Amortized Cost
Due in one year or less	$ 4,986
Due after one year through five years	104,294
Due after five years through ten years	212,809
Due after ten years	480,378
Total	802,467
Available-for-sale, Fair Value
Due in one year or less	4,983
Due after one year through five years	103,572
Due after five years through ten years	209,663
Due after ten years	470,875
Total	789,093
Due in one year or less	751
Held-to-maturity, Amortized Cost
Due in one year or less	751
Due after one year through five years	4,705
Due after five years through ten years	10,110
Due after ten years	78,507
Held-to-maturity Securities	94,073	$ 94,609
Held-to-maturity, Fair Value
Held-to-maturity Securities, Debt Maturities, Remainder of Fiscal Year, Fair Value	751
Due after one year through five years	4,721
Due after five years through ten years	10,192
Due after ten years	79,249
Held-to-maturity Securities, Fair Value	$ 94,913	$ 94,596

XML

Loans and Allowance for Loan Losses (Additional Information) (Details)	12 Months Ended
	Dec. 31, 2017 USD ($) loan	Dec. 31, 2016 USD ($) loan	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 13,590,000	$ 20,254,000	$ 15,235,000
Financing receivable, allowance for credit losses	24,171,000	23,116,000	21,166,000	$ 21,116,000
Foregone interest	$ 843,000	$ 888,000	$ 586,000
Number of Portfolio Concentration Industries	0
Financing Receivable, Modifications, Number of Contracts	5	6	1
Allowance Related to Troubled Debt Restructurings assigned during period	$ 45,000	$ 1,400,000	$ 27,000
Loans and Leases Receivable, Impaired, Commitment to Lend	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0
HPFC Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment		97,000
Financing receivable, allowance for credit losses	451,000	672,000	24,000
Unallocated Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, allowance for credit losses	0	0	0	2,384,000
Residential real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 5,171,000	4,348,000	6,026,000
Term to maturity (years)	30 years
Financing receivable, allowance for credit losses	$ 5,086,000	4,160,000	4,545,000	4,899,000
Financing Receivable in Process of Foreclosure	1,900,000	1,400,000
Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans restructured due to credit difficulties that are now performing	5,000,000	4,300,000
Financing Receivables Impaired Troubled Debt Restructuring Non-Performing	1,200,000	1,400,000
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment		7,000	74,000
Financing receivable, allowance for credit losses	233,000	181,000	$ 193,000	$ 281,000
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 500,000	250,000
Number of Months	18
Minimum [Member] | HPFC Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term to maturity (years)	7 years
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Months	24
Maximum [Member] | HPFC Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term to maturity (years)	10 years
Total Loan Portfolio [Member] | Loan Concentration Risk [Member] | Non-Residential Building Operators Industry Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	11.00%
Commercial real estate loans | Loan Concentration Risk [Member] | Non-Residential Building Operators Industry Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	27.00%
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans	1
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 280,000
Commercial loans | Extended Maturity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans restructured due to credit difficulties that are now performing	$ 22,000	$ 47,000
Financing Receivable, Modifications, Number of Contracts	0	6	0
Allowance Related to Troubled Debt Restructurings assigned during period	$ 0	$ 1,400,000	$ 0

XML

Loans and Allowance for Loan Losses (Composition of Loan Portfolio, Excluding Residential Loans Held for Sale) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans:	$ 2,782,439	$ 2,594,564	$ 2,490,206
Residential real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	858,369	802,494
Loans:	858,369	802,494	820,617
Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,164,023	1,050,780
Loans:	1,164,023	1,050,780	927,951
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	373,400	333,639
Loans:	373,400	333,639	297,721
Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	323,378	329,907
Loans:	323,378	329,907	348,634
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,149	17,332
Loans:	18,149	17,332	17,953
HPFC Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	45,120	60,412
Loans:	$ 45,120	$ 60,412	$ 77,330

XML

Loans and Allowance for Loan Losses (Schedule of FV mark amortization) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Receivables [Abstract]
Net Unamortized fair Value Mark (Discount) on Loans	$ 6,207	$ 8,810
Loans and Leases Receivable, Deferred Income	(963)	(66)
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	$ 5,244	$ 8,744

XML

Loans and Allowance for Loan Losses (Schedule of Loans Made to Related Parties) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance at beginning of year	$ 15,942	$ 16,628
Loans made/advanced and additions	230	434
Repayments and reductions	(3,032)	(1,120)
Balance at end of year	$ 13,140	$ 15,942

XML

Loans and Allowance for Loan Losses (Activity in Allowance for Loan Losses by Portfolio Segment) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Reserve for unfunded commitments	$ 20,000	$ 11,000	$ 22,000
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	23,116,000	21,166,000	21,116,000
Loans charged off	(2,468,000)	(3,805,000)	(2,616,000)
Recoveries	497,000	486,000	728,000
Provision for Loan and Lease Losses	3,026,000	5,269,000	1,938,000
Ending balance	24,171,000	23,116,000	21,166,000
Ending Balance: Individually evaluated for impairment	2,009,000	2,007,000	1,369,000
Ending Balance: Collectively evaluated for impairment	22,162,000	21,109,000	19,797,000
Ending Balance: Individually evaluated for impairment	13,590,000	20,254,000	15,235,000
Ending Balance: Collectively evaluated for impairment	2,768,849,000	2,574,310,000	2,474,971,000
Total loan balances	2,782,439,000	2,594,564,000	2,490,206,000
Residential real estate loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	4,160,000	4,545,000	4,899,000
Loans charged off	(482,000)	(356,000)	(801,000)
Recoveries	30,000	95,000	55,000
Provision for Loan and Lease Losses	1,378,000	(124,000)	392,000
Ending balance	5,086,000	4,160,000	4,545,000
Ending Balance: Individually evaluated for impairment	568,000	483,000	544,000
Ending Balance: Collectively evaluated for impairment	4,518,000	3,677,000	4,001,000
Ending Balance: Individually evaluated for impairment	5,171,000	4,348,000	6,026,000
Ending Balance: Collectively evaluated for impairment	853,198,000	798,146,000	814,591,000
Total loan balances	858,369,000	802,494,000	820,617,000
Commercial real estate loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	12,154,000	10,432,000	7,951,000
Loans charged off	(124,000)	(315,000)	(481,000)
Recoveries	141,000	50,000	74,000
Provision for Loan and Lease Losses	(308,000)	1,987,000	2,888,000
Ending balance	11,863,000	12,154,000	10,432,000
Ending Balance: Individually evaluated for impairment	1,441,000	1,373,000	644,000
Ending Balance: Collectively evaluated for impairment	10,422,000	10,781,000	9,788,000
Ending Balance: Individually evaluated for impairment	6,199,000	13,317,000	4,610,000
Ending Balance: Collectively evaluated for impairment	1,157,824,000	1,037,463,000	923,341,000
Total loan balances	1,164,023,000	1,050,780,000	927,951,000
Commercial loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	3,755,000	3,241,000	3,354,000
Loans charged off	(1,014,000)	(2,218,000)	(655,000)
Recoveries	301,000	332,000	389,000
Provision for Loan and Lease Losses	1,129,000	2,400,000	153,000
Ending balance	4,171,000	3,755,000	3,241,000
Ending Balance: Individually evaluated for impairment			92,000
Ending Balance: Collectively evaluated for impairment	4,171,000	3,755,000	3,149,000
Ending Balance: Individually evaluated for impairment	1,791,000	2,028,000	3,937,000
Ending Balance: Collectively evaluated for impairment	371,609,000	331,611,000	293,784,000
Total loan balances	373,400,000	333,639,000	297,721,000
Home equity loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	2,194,000	2,731,000	2,247,000
Loans charged off	(434,000)	(308,000)	(525,000)
Recoveries	2,000	2,000	188,000
Provision for Loan and Lease Losses	605,000	(231,000)	821,000
Ending balance	2,367,000	2,194,000	2,731,000
Ending Balance: Individually evaluated for impairment		86,000	89,000
Ending Balance: Collectively evaluated for impairment	2,367,000	2,108,000	2,642,000
Ending Balance: Individually evaluated for impairment	429,000	457,000	588,000
Ending Balance: Collectively evaluated for impairment	322,949,000	329,450,000	348,046,000
Total loan balances	323,378,000	329,907,000	348,634,000
Consumer loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	181,000	193,000	281,000
Loans charged off	(124,000)	(101,000)	(154,000)
Recoveries	17,000	7,000	22,000
Provision for Loan and Lease Losses	159,000	82,000	44,000
Ending balance	233,000	181,000	193,000
Ending Balance: Collectively evaluated for impairment	233,000	181,000	193,000
Ending Balance: Individually evaluated for impairment		7,000	74,000
Ending Balance: Collectively evaluated for impairment	18,149,000	17,325,000	17,879,000
Total loan balances	18,149,000	17,332,000	17,953,000
HPFC Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	672,000	24,000
Loans charged off	(290,000)	(507,000)
Recoveries	6,000
Provision for Loan and Lease Losses	63,000	1,155,000	24,000
Ending balance	451,000	672,000	24,000
Ending Balance: Individually evaluated for impairment		65,000
Ending Balance: Collectively evaluated for impairment	451,000	607,000	24,000
Ending Balance: Individually evaluated for impairment		97,000
Ending Balance: Collectively evaluated for impairment	45,120,000	60,315,000	77,330,000
Total loan balances	45,120,000	60,412,000	77,330,000
Unallocated
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	0	0	2,384,000
Provision for Loan and Lease Losses			(2,384,000)
Ending balance	$ 0	$ 0	$ 0

XML

Loans and Allowance for Loan Losses (Schedule of Provision for Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Provision (credit)									$ 3,026	$ 5,269	$ 1,938
Provision for Other Credit Losses									9	(11)	(2)
Provision for credit losses	$ 238	$ 817	$ 1,401	$ 579	$ 255	$ 1,279	$ 2,852	$ 872	$ 3,035	$ 5,258	$ 1,936

XML

Loans and Allowance for Loan Losses (Credit Risk Exposure Indicators by Portfolio Segment) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans:	$ 2,782,439	$ 2,594,564	$ 2,490,206
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	2,374,582	2,173,031
Performing Financing Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans:	339,876	345,615
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	22,784	13,966
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans:	43,546	58,872
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:		1,456
Nonperforming Financing Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans:	1,651	1,624
Residential real estate loans
Financing Receivable, Recorded Investment [Line Items]
Loans:	858,369	802,494	820,617
Residential real estate loans | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	846,394	789,554
Residential real estate loans | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	922	2,387
Residential real estate loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans:	11,053	10,553
Commercial real estate loans
Financing Receivable, Recorded Investment [Line Items]
Loans:	1,164,023	1,050,780	927,951
Commercial real estate loans | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	1,130,235	1,003,386
Commercial real estate loans | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	9,154	5,724
Commercial real estate loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans:	24,634	41,670
Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Loans:	373,400	333,639	297,721
Commercial loans | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	354,904	321,148
Commercial loans | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	12,517	5,598
Commercial loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans:	5,979	5,437
Commercial loans | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:		1,456
Home equity loans
Financing Receivable, Recorded Investment [Line Items]
Loans:	323,378	329,907	348,634
Home equity loans | Performing Financing Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans:	321,727	328,287
Home equity loans | Nonperforming Financing Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans:	1,651	1,620
Consumer loans
Financing Receivable, Recorded Investment [Line Items]
Loans:	18,149	17,332	17,953
Consumer loans | Performing Financing Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans:	18,149	17,328
Consumer loans | Nonperforming Financing Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans:		4
HPFC Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	45,120	60,412	$ 77,330
HPFC Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	43,049	58,943
HPFC Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans:	191	257
HPFC Portfolio Segment [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans:	$ 1,880	$ 1,212

XML

Loans and Allowance for Loan Losses (Loan Aging Analysis by Portfolio Segment (Including Loans Past Due Over Ninety Days and Non Accrual Loans) and Summary of Non Accrual Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 22,945	$ 25,465
Current	2,759,494	2,569,099
Total loan balances	2,782,439	2,594,564	$ 2,490,206
Non-Accrual Loans	15,314	20,713
Residential real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,477	5,611
Current	848,892	796,883
Total loan balances	858,369	802,494	820,617
Non-Accrual Loans	4,979	3,945
Commercial real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,700	13,703
Current	1,157,323	1,037,077
Total loan balances	1,164,023	1,050,780	927,951
Non-Accrual Loans	5,642	12,849
Commercial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,223	2,526
Current	371,177	331,113
Total loan balances	373,400	333,639	297,721
Non-Accrual Loans	2,000	2,088
Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,548	2,347
Current	320,830	327,560
Total loan balances	323,378	329,907	348,634
Non-Accrual Loans	1,650	1,620
Consumer loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	67	42
Current	18,082	17,290
Total loan balances	18,149	17,332	17,953
Non-Accrual Loans		4
HPFC Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,930	1,236
Current	43,190	59,176
Total loan balances	45,120	60,412	$ 77,330
Non-Accrual Loans	1,043	207
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,291	4,639
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,871	1,783
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	849	855
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	329	633
Financing Receivables, 30 to 59 Days Past Due [Member] | Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,046	892
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	57	38
Financing Receivables, 30 to 59 Days Past Due [Member] | HPFC Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	139	438
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,822	2,187
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,585	924
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	323	223
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	359	218
Financing Receivables, 60 to 89 Days Past Due [Member] | Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	173	134
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10
Financing Receivables, 60 to 89 Days Past Due [Member] | HPFC Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,372	688
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,832	18,639
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,021	2,904
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,528	12,625
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,535	1,675
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,329	1,321
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		4
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | HPFC Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 419	$ 110

XML

Loans and Allowance for Loan Losses (Summary of All Troubled Debt Restructuring Loans (Accruing and Non Accruing) by Portfolio Segment) (Details)	3 Months Ended	12 Months Ended
	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) loan	Dec. 31, 2016 USD ($) loan	Dec. 31, 2015 USD ($) loan
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts Outstanding | loan		36	35
Financing Receivable, Modifications, Recorded Investment		$ 6,232,000	$ 5,747,000
Specific Reserve		$ 468,000	$ 483,000
Number of Contracts		5	6	1
Pre-Modification Outstanding Recorded Investment		$ 895,000	$ 2,973,000	$ 74,000
Post-Modification Outstanding Recorded Investment		914,000	2,973,000	78,000
Specific Reserve		45,000	1,400,000	27,000
Recorded investment of troubled-debt restructurings that subsequently defaulted		$ 0	$ 0	$ 0
Commercial loans
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts Outstanding | loan		7	10
Financing Receivable, Modifications, Recorded Investment		$ 1,345,000	$ 1,502,000
Specific Reserve		$ 0	$ 0
Home equity loans
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts Outstanding | loan		2	1
Financing Receivable, Modifications, Recorded Investment		$ 307,000	$ 16,000
Specific Reserve		$ 0	$ 0
Residential real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts Outstanding | loan		24	21
Financing Receivable, Modifications, Recorded Investment		$ 3,604,000	$ 3,221,000
Specific Reserve		$ 452,000	$ 483,000
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts Outstanding | loan		3	3
Financing Receivable, Modifications, Recorded Investment		$ 976,000	$ 1,008,000
Specific Reserve		$ 16,000	$ 0
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan		1	0	0
Pre-Modification Outstanding Recorded Investment		$ 148,000	$ 0	$ 0
Post-Modification Outstanding Recorded Investment		$ 156,000	0	0
Specific Reserve	$ 30,000		$ 0	$ 0
Home Equity Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan		1	0	0
Pre-Modification Outstanding Recorded Investment		$ 315,000	$ 0	$ 0
Post-Modification Outstanding Recorded Investment		315,000	0	0
Specific Reserve		$ 0	$ 0	$ 0
Extended Maturity [Member] | Residential real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts		2	0	0
Pre-Modification Outstanding Recorded Investment		$ 298,000	$ 0	$ 0
Post-Modification Outstanding Recorded Investment		298,000	0	0
Specific Reserve		$ 15,000	$ 0	$ 0
Extended Maturity [Member] | Commercial loans
Financing Receivable, Modifications [Line Items]
Number of Contracts		0	6	0
Pre-Modification Outstanding Recorded Investment		$ 0	$ 2,973,000	$ 0
Post-Modification Outstanding Recorded Investment		0	2,973,000	0
Specific Reserve		$ 0	$ 1,400,000	$ 0
Court Order [Member] | Residential real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts		0	0	1
Pre-Modification Outstanding Recorded Investment		$ 0	$ 0	$ 74,000
Post-Modification Outstanding Recorded Investment		0	0	78,000
Specific Reserve		$ 0	$ 0	$ 27,000
Contractual Interest Rate Reduction [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan		1	0	0
Pre-Modification Outstanding Recorded Investment		$ 134,000	$ 0	$ 0
Post-Modification Outstanding Recorded Investment		145,000	0	0
Specific Reserve		$ 0	$ 0	$ 0

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Loans and Allowance for Loan Losses (Summary of Impaired Loan Balances and Associated Allowance by Portfolio Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Recorded investment with related allowance recorded	$ 9,280	$ 14,858	$ 5,475
Unpaid principal balance with related allowance recorded	9,280	14,858	5,507
Average recorded investment with related allowance recorded	12,257	9,418	9,857
Interest income recognized with related allowance recorded	153	106	114
Recorded investment without related allowance recorded	4,310	5,396	9,760
Unpaid principal balance without related allowance recorded	6,216	7,756	12,942
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average recorded investment without related allowance recorded	4,709	6,970	6,695
Interest income recognized without related allowance recorded	62	76	90
Recorded investment, total impaired loans	13,590	20,254	15,235
Unpaid principal balance, total impaired loans	15,496	22,614	18,449
Related allowance, total impaired loans	2,009	2,007	1,369
Average recorded investment, total impaired loans	16,966	16,388	16,552
Interest income recognized, total impaired loans	215	182	204
Residential real estate loans
Financing Receivable, Impaired [Line Items]
Recorded investment with related allowance recorded	3,858	3,019	3,191
Unpaid principal balance with related allowance recorded	3,858	3,019	3,191
Average recorded investment with related allowance recorded	3,177	3,088	6,064
Interest income recognized with related allowance recorded	131	106	112
Recorded investment without related allowance recorded	1,313	1,329	2,835
Unpaid principal balance without related allowance recorded	1,673	1,800	4,353
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average recorded investment without related allowance recorded	1,345	2,057	2,175
Interest income recognized without related allowance recorded	15	9	8
Related allowance, total impaired loans	568	483	544
Commercial real estate loans
Financing Receivable, Impaired [Line Items]
Recorded investment with related allowance recorded	5,422	11,443	1,825
Unpaid principal balance with related allowance recorded	5,422	11,443	1,857
Average recorded investment with related allowance recorded	8,900	5,165	1,753
Interest income recognized with related allowance recorded	22
Recorded investment without related allowance recorded	777	1,874	2,785
Unpaid principal balance without related allowance recorded	1,084	2,369	3,426
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average recorded investment without related allowance recorded	1,132	2,214	2,719
Interest income recognized without related allowance recorded	29	51	65
Related allowance, total impaired loans	1,441	1,373	644
Commercial loans
Financing Receivable, Impaired [Line Items]
Recorded investment with related allowance recorded			156
Unpaid principal balance with related allowance recorded			156
Average recorded investment with related allowance recorded	31	762	945
Interest income recognized with related allowance recorded			2
Recorded investment without related allowance recorded	1,791	2,028	3,781
Unpaid principal balance without related allowance recorded	2,964	3,209	4,325
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average recorded investment without related allowance recorded	1,920	2,507	1,412
Interest income recognized without related allowance recorded	10	16	17
Related allowance, total impaired loans	0	0	92
Home equity loans
Financing Receivable, Impaired [Line Items]
Recorded investment with related allowance recorded		299	303
Unpaid principal balance with related allowance recorded		299	303
Average recorded investment with related allowance recorded	125	305	900
Recorded investment without related allowance recorded	429	158	285
Unpaid principal balance without related allowance recorded	495	368	688
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average recorded investment without related allowance recorded	310	180	369
Interest income recognized without related allowance recorded	8
Related allowance, total impaired loans	0	86	89
Consumer loans
Financing Receivable, Impaired [Line Items]
Average recorded investment with related allowance recorded			195
Recorded investment without related allowance recorded		7	74
Unpaid principal balance without related allowance recorded		10	150
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average recorded investment without related allowance recorded	2	12	$ 20
Related allowance, total impaired loans	0	0
HPFC Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment with related allowance recorded		97
Unpaid principal balance with related allowance recorded		97
Average recorded investment with related allowance recorded	24	98
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average recorded investment without related allowance recorded
Related allowance, total impaired loans	$ 0	$ 65

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Goodwill (Changes in Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017
Goodwill [Line Items]
Goodwill	$ 98,267	$ 99,227	$ 98,267
Accumulated impairment losses	(3,570)	(3,570)	(3,570)
Reported goodwill	94,697	95,657	94,697
Activity for the year		960
Banking
Goodwill [Line Items]
Goodwill	90,793	91,753	90,793
Accumulated impairment losses	0	0	0
Reported goodwill	90,793	91,753	90,793
Activity for the year		960
Financial Services
Goodwill [Line Items]
Goodwill	7,474	7,474	7,474
Accumulated impairment losses	(3,570)	(3,570)	(3,570)
Reported goodwill	3,904	$ 3,904	$ 3,904
Activity for the year	$ 0

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Goodwill (Additional Information) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Impairment Loss, Net of Tax	$ 0	$ 0	$ 0

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Other Intangible Assets (Schedule of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Gross Carrying Amount
Total	$ 24,661	$ 24,661
Accumulated Amortization
Total	(19,706)	(17,897)
Net Carrying Amount
Total	4,955	6,764
Amortization of intangible assets	1,809	1,903	$ 1,306
Core Deposits [Member]
Gross Carrying Amount
Total	23,908	23,908
Accumulated Amortization
Total	(18,953)	(17,220)
Net Carrying Amount
Total	4,955	6,688
Trust Relationship [Member]
Gross Carrying Amount
Total	753	753
Accumulated Amortization
Total	(753)	(677)
Net Carrying Amount
Total	$ 0	$ 76

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Other Intangible Assets (Schedule of Expected Future Amortization of Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other Intangible Assets [Abstract]
2018	$ 725
2019	705
2020	682
2021	655
2022	625
Thereafter	1,563
Total	$ 4,955	$ 6,764

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Premises and Equipment (Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 76,092	$ 74,013
Accumulated depreciation and amortization	(34,201)	(31,140)
Premises and equipment, net	41,891	42,873
Gain (Loss) on Disposition of Property Plant Equipment	0	(11)	$ 0
Land and land improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	2,985	3,012
Buildings and leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	37,054	36,958
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	36,053	34,043
Software and Software Development Costs [Member]
Property, Plant and Equipment [Line Items]
Accumulated depreciation and amortization	(3,500)	(3,200)
Capitalized Computer Software, Gross	3,800	3,600
Capital lease obligation
Property, Plant and Equipment [Line Items]
Capital Leased Assets, Gross	$ 855	$ 855
SBM Financial, Inc. [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Disposals			$ 1,100

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Premises and Equipment - Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Depreciation, Depletion and Amortization, Nonproduction	$ 3,761	$ 4,426	$ 3,614
Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation	1,874	1,942	1,620
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Depreciation	1,643	1,757	1,140
Software Development [Member]
Property, Plant and Equipment [Line Items]
Depreciation	244	275	337
SBM Financial, Inc. [Member] | Property, Plant and Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation	$ 0	$ 452	$ 517

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Premises and Equipment (Leases) (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2017 USD ($) property	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Property, Plant and Equipment [Line Items]
Lease expense		$ 1,500	$ 1,800	$ 1,700
Number of properties | property		1
Lessee Leasing Arrangements, Operating Leases, Term of Contract		5 years
number of lease extensions		2
Lessee Leasing Arrangements, Operating Leases, Renewal Term		5 years
Capital Lease Obligations		$ 791	858
Operating Leases
2018		1,429
2019		1,394
2020		888
2021		671
2022		484
Thereafter		1,531
Total		6,397
Capital Leases
2018		126
2019		126
2020		126
2021		130
2022		131
Thereafter		425
Total		1,064
Less: amount representing interest	[1]	273
Present value of net minimum lease payments	[2]	$ 791
Capital lease obligation
Property, Plant and Equipment [Line Items]
Year through which capital lease on branch facility will extend		Mar. 31, 2026
Capital lease interest rate		9.75%
Capital lease for a branch facility		$ 855	855
Accumulated depreciation for a branch facility		$ 502	$ 459
Lease Agreements [Member]
Property, Plant and Equipment [Line Items]
Year through which capital lease on branch facility will extend		Dec. 01, 2019
Officer [Member]
Property, Plant and Equipment [Line Items]
number of related parties		2

[1] Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate at lease inception.

[2] Reflects the liability reported within short- and long-term borrowings on the consolidated statements of condition. At December 31, 2017 and 2016, the capital lease liability was $791,000 and $858,000, respectively.

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Mortgage Banking (Additional Information) (Details) - USD ($)		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Servicing Assets at Fair Value [Line Items]
Gain (Loss) on Sale of Mortgage Loans		$ 6,256,000	$ 6,201,000	$ 1,278,000
Receivables Held-for-sale, Amount		8,100,000	15,100,000
Unrealized Gain (Loss) on Derivatives		37,000	(289,000)
Unrealized gain (loss) on loans held for sale		326,000	(422,000)	133,000
Servicing Asset at Amortized Cost		1,025,000	1,210,000	2,161,000	$ 493,000
Servicing Asset at Amortized Cost		$ 1,025,000	$ 1,210,000	2,161,000	$ 493,000
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed		14.00%	14.60%
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate		11.20%	7.80%
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Prepayment Speed		$ 76,000
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Prepayment Speed		148,000
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Discount Rate		54,000
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Discount Rate		105,000
Advance Payments by Borrowers for Taxes and Insurance		194,000	$ 2,000,000
Capitalized servicing right fees upon sale(1)	[1]	22,000	9,000	294,000
Fixed Rate Residential Mortgage [Member]
Servicing Assets at Fair Value [Line Items]
Mortgage Loans on Real Estate, Cost of Mortgages Sold		218,600,000	232,200,000	61,200,000
Custodial escrow balances		4,200,000	11,900,000
Accounts Receivable, Net		58,000	2,700,000
Allowance for Doubtful Accounts Receivable		0	829,000
SBM Financial, Inc. [Member]
Servicing Assets at Fair Value [Line Items]
Capitalized servicing right fees upon sale(1)		0	0	1,608,000
Forward Contracts [Member]
Servicing Assets at Fair Value [Line Items]
Unrealized Gain (Loss) on Derivatives		(136,000)	278,000	0
Servicing Assets [Member]
Servicing Assets at Fair Value [Line Items]
Mortgage loans serviced during period, value		275,200,000	332,700,000
Fees and Commissions, Mortgage Banking and Servicing		1,000,000	1,100,000	597,000
Sub-Serviced Loans [Member]
Servicing Assets at Fair Value [Line Items]
Mortgage loans serviced during period, value		349,700,000	930,800,000
Fees and Commissions, Mortgage Banking and Servicing		$ 12,000	$ 1,700,000	$ 1,200,000

[1] Reported within mortgage banking income, net on the Company's consolidated statements of income.

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Mortgage Banking (Schedule of Mortgage Servicing) (Details) - USD ($)		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of year		$ 1,210,000	$ 2,161,000	$ 493,000
Capitalized servicing right fees upon sale(1)	[1]	22,000	9,000	294,000
Amortization charged against mortgage servicing fee income(1)	[1]	(430,000)	(734,000)	(231,000)
Valuation adjustment		223,000	226,000	3,000
Balance at end of year		1,025,000	1,210,000	2,161,000
Valuation Allowance:
Balance at beginning of year		(230,000)	(4,000)	(1,000)
(Increase) decrease in impairment reserve(1)	[1]	223,000	(226,000)	(3,000)
Balance at end of year		(7,000)	(230,000)	(4,000)
Fair value, beginning of year		1,701,000	2,947,000	1,447,000
Fair value, end of year		1,766,000	1,701,000	2,947,000
SBM Financial, Inc. [Member]
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Capitalized servicing right fees upon sale(1)		$ 0	$ 0	$ 1,608,000

[1] Reported within mortgage banking income, net on the Company's consolidated statements of income.

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Deposits (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Deposit [Line Items]
2018	$ 239,936,000
2019	110,867,000
2020	69,944,000
2021	32,208,000
2022	19,816,000
Thereafter	9,239,000
Total certificates of deposit	482,010,000
FDIC Insurance Limit	250,000
Time Deposits, $250,000 or more	137,100,000	$ 104,500,000
Deposits from certain officers, directors, and their associated companies	$ 14,900,000	$ 14,400,000
Deposit Liabilities, Collateral Issued, Description	434.6	377.9
Deposit Liabilities Reclassified as Loans Receivable	$ 897,000	$ 986,000
Retail [Member]
Deposit [Line Items]
2018	239,936,000
2019	110,867,000
2020	62,944,000
2021	32,208,000
2022	19,816,000
Thereafter	9,239,000
Total certificates of deposit	475,010,000
Brokered [Member]
Deposit [Line Items]
2020	7,000,000
Total certificates of deposit	$ 7,000,000

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Borrowings (Summary of Short term and Long term Borrowings and Subordinated Debentures) (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Securities Sold under Agreements to Repurchase	[1]	$ 244,646	$ 230,612
FHLBB borrowings
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)		1.87%	1.87%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2018		$ 250,000
2020		10,000
Customer repurchase agreements
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2018		244,646
FHLBB and correspondent bank overnight borrowings
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2018		47,150
Wholesale repurchase agreements
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2018		$ 0
Capital lease obligation
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)		4.18%	4.31%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2018		$ 71
2019		76
2020		81
2021		90
2022		98
Thereafter		$ 375
Long-term Debt
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)		2.03%	2.05%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2019		$ 76
2020		10,081
2021		90
2022		98
Thereafter		375
Total long-term borrowings		$ 10,720	$ 10,791
Subordinated Debt and Junior Subordinated Debt
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)		5.66%	5.69%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
Thereafter		$ 58,911
Total long-term borrowings		$ 58,911	$ 58,755
Subordinated Debt | Subordinated debentures
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)		5.50%	5.50%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
Thereafter		$ 14,580
Total long-term borrowings		14,580	$ 14,526
Debt Issuance Costs, Net		420	474
Short-term Debt
Debt Instrument [Line Items]
Total short-term borrowings		$ 541,867	$ 530,129
Weighted Average Rate (as a percent)		1.10%	0.74%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2018		$ 541,867
Short-term Debt | FHLBB borrowings
Debt Instrument [Line Items]
FHLBB borrowings		250,000	$ 210,000
Short-term Debt | Customer repurchase agreements
Debt Instrument [Line Items]
Securities Sold under Agreements to Repurchase		244,646	225,605
Short-term Debt | FHLBB and correspondent bank overnight borrowings
Debt Instrument [Line Items]
FHLBB and correspondent bank overnight borrowings		47,150	89,450
Short-term Debt | Capital lease obligation
Debt Instrument [Line Items]
Capital lease obligation		71	67
Long-term Debt
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
Long-term Federal Home Loan Bank Advances		10,000
Long-term Debt | FHLBB borrowings
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
Long-term Federal Home Loan Bank Advances		10,000	10,000
Long-term Debt | Capital lease obligation
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
Capital lease obligation		720	791
Commercial and Industrial Sector [Member] | Short-term Debt | Wholesale repurchase agreements
Debt Instrument [Line Items]
Securities Sold under Agreements to Repurchase		$ 0	$ 5,007
Subsidiary One [Member] | Junior Subordinated Debt
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)		5.48%	5.50%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
Thereafter		$ 36,083
Total long-term borrowings		$ 36,083	$ 36,083
Subsidiary Two [Member] | Junior Subordinated Debt
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)		6.75%	6.85%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
Thereafter		$ 8,248
Total long-term borrowings		$ 8,248	$ 8,146

[1] (1) Presented within short-term borrowings on the consolidated statements of condition.

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Borrowings (Additional Information) (Details) - USD ($)		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity		$ 10,000,000.0
Line of credit, amount outstanding		$ 0
Line of credit, expiration date		Dec. 20, 2018
Loans Pledged as Collateral		$ 144,400,000
Available-for-sale Securities Pledged as Collateral		31,000
Securities Sold under Agreements to Repurchase	[1]	244,646,000	$ 230,612,000
Amortization of Debt Issuance Costs		54,000
Federal Home Loan Bank Advances [Member]
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity		9,900,000	9,900,000
Line of credit, amount outstanding		0	$ 0
PNC [Member]
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity		50,000,000
Federal Reserve Bank Advances [Member]
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity		$ 99,800,000
Short Term Borrowing Maturing January 2017 [Member] | Short-term Debt | Minimum [Member]
Short-term Debt [Line Items]
Federal Home Loan Bank Advances Maturities Summary Fixed Interest Rate Within One Year From Balance Sheet Date		1.45%
Short Term Borrowing Maturing January 2017 [Member] | Short-term Debt | Maximum [Member]
Short-term Debt [Line Items]
Federal Home Loan Bank Advances Maturities Summary Fixed Interest Rate Within One Year From Balance Sheet Date		1.63%

[1] (1) Presented within short-term borrowings on the consolidated statements of condition.

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Borrowings (Schedule of Advances to the Federal Home Loan Bank) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
FHLB advances, carrying value of residential real estate and commercial loans pledged as collateral	$ 1,100,000
FHLB advances, securities pledged as collateral	215	$ 400
Long-term Debt
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
Long-term Federal Home Loan Bank Advances	$ 10,000
Long term borrowings interest rate (as a percent)	1.87%
Short Term Borrowing Maturing January 2017 [Member] | Short-term Debt
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
FHLBB borrowings	$ 200,000
Short Term Borrowing Maturing January 2017 [Member] | Short-term Debt | Minimum [Member]
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
Federal Home Loan Bank Advances Maturities Summary Fixed Interest Rate Within One Year From Balance Sheet Date	1.45%
Short Term Borrowing Maturing January 2017 [Member] | Short-term Debt | Maximum [Member]
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
Federal Home Loan Bank Advances Maturities Summary Fixed Interest Rate Within One Year From Balance Sheet Date	1.63%
Federal Home Loan Bank, Advances, Callable Option [Member] | Short-term Debt
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
FHLBB borrowings	$ 50,000
Federal Home Loan Bank Advances Maturities Summary Fixed Interest Rate Within One Year From Balance Sheet Date	1.54%

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Borrowings (Subordinated Debentures) (Details) - USD ($)		1 Months Ended	12 Months Ended
	Oct. 08, 2015	Apr. 30, 2006	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2006	Dec. 31, 2008
Debt Instrument [Line Items]
Subordinated Debt	$ 15,000,000		$ 58,911,000	$ 58,755,000
Subordinated Borrowing, Interest Rate	5.50%
Debt Instrument, Term	10 years		10 years
Debt Instrument, Frequency of Periodic Payment			semi-annually
Debt Instrument, Maturity Date			Oct. 15, 2020
Debt Instrument, Call Date, Earliest			Oct. 15, 2025
Payments of Debt Issuance Costs			$ 536,000
Debt Issuance Cost			54,000
Value of trust preferred securities included in Tier I Capital	$ 43,000,000		43,000,000
Interest Expense, Junior Subordinated Debentures			3,408,000	3,415,000	$ 2,724,000
Junior Subordinated Debt
Debt Instrument [Line Items]
Value of trust preferred securities included in Tier I Capital			$ 43,000,000
Percentage of trust preferred securities included in Tier I Capital ratio			12.00%
Junior Subordinated Debt | Subsidiary One [Member]
Debt Instrument [Line Items]
Proceeds from issuance of trust preferred securities		$ 36,100,000
Value of outstanding common shares of subsidiary owned by company		$ 1,100,000
Debt instrument, interest rate		6.71%
Debt instrument, interest rate terms		now floats at the 3 month LIBOR plus 140 basis points
Debt interest rate, additional rate over three month LIBOR		1.40%
Junior Subordinated Debt | Subsidiary Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Term						30 years
Value of outstanding common shares of subsidiary owned by company						$ 248,000
Debt instrument, interest rate terms						The interest rate of the trust preferred securities until April 7, 2011 was a blended rate equal to the sum of (1) the product of 50% times the average three-month LIBOR plus 1.42%, plus (2) the product of 50% times 6.4725%. The rate is now the average three-month LIBOR plus 1.42%.
Trust preferred securities assumed in acquisition							$ 8,000,000
Debt interest rate, additional rate over three month LIBOR						1.42%
Aggregate amount of junior subordinated debt issued to subsidiary by acquired company, prior to acquisition						$ 8,200,000
Debt instrument fixed rate						6.4725%
interest rate multiplier applied to variable rate						50.00%
interest rate multiplier applied to fixed rate						50.00%
Interest rate swaps
Debt Instrument [Line Items]
Notional amount of derivative			$ 43,000,000	$ 43,000,000

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Repurchase Agreements (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	$ 244,646	$ 230,612
Certificates of Deposit, at Carrying Value		920	917
Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	244,646	225,605
Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	0	0
30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	0	5,007
Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	0	0
Commercial Borrower
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			5,007
Commercial Borrower | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Commercial Borrower | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Commercial Borrower | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			5,007
Commercial Borrower | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			3,715
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			3,715
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			1,292
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			1,292
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase			0
Retail [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		244,646	225,605
Retail [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		244,646	225,605
Retail [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		98,460	117,784
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		98,460	117,784
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		145,556	107,821
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		145,556	107,821
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	$ 0
Retail [Member] | Obligations of states and political subdivisions [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		630
Retail [Member] | Obligations of states and political subdivisions [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		630
Retail [Member] | Obligations of states and political subdivisions [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0
Retail [Member] | Obligations of states and political subdivisions [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0
Retail [Member] | Obligations of states and political subdivisions [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		$ 0

[1] (1) Presented within short-term borrowings on the consolidated statements of condition.

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Income Taxes (Schedule of Income Tax Expense) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
Federal									$ 14,529	$ 17,854	$ 7,956
State									1,289	930	71
Total									15,818	18,784	8,027
Deferred:
Change in federal corporate income tax rate(1)									14,263	0	0
Federal									4,117	(1,258)	1,356
Deferred State and Local Income Tax Expense (Benefit)									(320)	(54)	524
Deferred Income Tax Expense (Benefit)									18,060	(1,312)	1,880
Income tax expense	$ 19,335	$ 5,478	$ 4,721	$ 4,344	$ 4,730	$ 5,042	$ 4,258	$ 3,442	$ 33,878	$ 17,472	$ 9,907

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Income Taxes (Reconciliation of Expected Income Tax Benefit Computed Using Federal Statutory Income Tax Rate) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Computed tax expense										$ 21,824	$ 20,139	$ 10,801
Change in federal corporate income tax rate										14,263	0	0
Tax exempt income										(1,291)	(1,312)	(1,092)
Income from life insurance										(829)	(908)	(588)
State taxes, net of federal benefit										630	565	373
Share-based awards(1)	[1]									(390)	(701)	0
Low income housing credits										(366)	(376)	(359)
Non-deductible acquisition-related costs										0	0	467
Other										37	65	305
Income tax expense		$ 19,335	$ 5,478	$ 4,721	$ 4,344	$ 4,730	$ 5,042	$ 4,258	$ 3,442	33,878	17,472	9,907
Income before income taxes		$ 16,162	$ 16,817	$ 14,955	$ 14,420	$ 15,632	$ 15,945	$ 13,874	$ 12,088	$ 62,354	$ 57,539	$ 30,859
Effective tax rate										54.30%	30.40%	32.10%

[1] (1) The Company adopted the provisions of ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, in calendar year 2016. Prior to adoption, it accounted for its windfall tax benefits or shortfalls generated upon exercise of a non-qualified stock option or a disqualifying incentive stock option, or upon vesting of its restricted shares through shareholders' equity (or as income tax expense to the extent the Company did not have a windfall tax benefit surplus). Upon adoption, the Company now accounts for its windfall tax benefits and shortfalls generated within income tax expense on the consolidated statements of income as a discrete period item in the quarter generated.

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Income Taxes (Schedule of Deferred Tax Assets and Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Asset
Net operating loss and tax credit carryforward	$ 12,078	$ 20,977
Allowance for loan losses	5,201	8,094
Pension and other benefits	3,363	5,141
Net unrealized losses on AFS securities	2,821	3,227
Net unrealized losses on derivative instruments	1,623	3,066
Deferred compensation and benefits	1,199	1,791
Net unrealized losses on postretirement plans	1,092	1,147
Purchase accounting and deposit premium	461	1,430
Total	27,838	45,829
Liability
Depreciation	(2,857)	(4,520)
Deferred loan origination fees	(1,510)	(2,046)
Other		(956)
Deferred Tax Liabilities, Other	695
Total	(5,062)	(6,566)
Income Tax Contingency [Line Items]
Deferred Tax Assets, Net of Valuation Allowance	$ 22,776	$ 39,263

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Income Taxes (Additional Information) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Oct. 16, 2016	Oct. 16, 2015
Income Tax Contingency [Line Items]
Change in federal corporate income tax rate	$ 14,263,000	$ 0	$ 0
Operating Loss Carryforwards		$ 803,000		$ 3,900,000
Domestic Tax Authority [Member]
Income Tax Contingency [Line Items]
Operating Loss Carryforwards				6,800,000
SBM Financial, Inc. [Member] | Domestic Tax Authority [Member]
Income Tax Contingency [Line Items]
Operating Loss Carryforwards				71,200,000
Operating Loss Carryforwards, Valuation Allowance					$ 0
SBM Financial, Inc. [Member] | State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Operating Loss Carryforwards				$ 213,000
Minimum [Member]
Income Tax Contingency [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2030
Maximum [Member]
Income Tax Contingency [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2034

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Shareholders' Equity (Details) - USD ($) $ in Thousands		12 Months Ended
	Oct. 08, 2015	Dec. 31, 2017	Dec. 31, 2016
Total risk-based capital:
Actual Regulatory Capital - Amount		$ 396,451	$ 368,856
Capital To Risk Weighted Assets		14.14%	14.04%
Minimum Requirement for capital Adequacy Including Capital Buffer Total Risk-Based Capital Ratio		9.25%
Minimum Regulatory Capital Required - Ratio		8.00%	8.63%
Tier 1 capital:
Actual Regulatory Capital - Amount		$ 357,261	$ 330,729
Actual Regulatory Capital - Ratio		12.74%	12.59%
Minimum Requirement for capital Adequacy Including Capital Buffer Tier I Risk-Based Capital Ratio		7.25%
Minimum Regulatory Capital Required - Ratio		6.00%	6.63%
Common equity tier I capital		$ 316,677	$ 296,120
Tier 1 leverage capital ratio:
Actual Regulatory Capital - Amount		$ 357,261	$ 330,729
Actual Regulatory Capital - Ratio		9.07%	8.83%
Minimum Regulatory Capital Required - Ratio		4.00%	4.00%
Common Equity Tier I Risk Based Capital Ratio		11.30%	11.27%
Minimum Requirement for capital Adequacy Including Capital Buffer Common Equity Tier I Risk-Based Capital Ratio		5.75%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		4.50%	5.13%
Capital Conservation Buffer		2.50%
Value Of Trust Preferred Securities Included In Tier One Capital	$ 43,000	$ 43,000
Subordinated Debt	$ 15,000	$ 58,911	$ 58,755
Debt Instrument, Term	10 years	10 years
Subordinated Borrowing, Interest Rate	5.50%
Subsidiaries [Member]
Total risk-based capital:
Actual Regulatory Capital - Amount		$ 369,540	$ 340,908
Capital To Risk Weighted Assets		13.18%	12.92%
Minimum Requirement for capital Adequacy Including Capital Buffer Total Risk-Based Capital Ratio		9.25%
Minimum Regulatory Capital Required - Ratio			8.63%
Minimum Regulatory Provision To Be Well Capitalized - Ratio		10.00%	10.00%
Tier 1 capital:
Actual Regulatory Capital - Amount		$ 345,350	$ 317,782
Actual Regulatory Capital - Ratio		12.32%	12.05%
Minimum Requirement for capital Adequacy Including Capital Buffer Tier I Risk-Based Capital Ratio		7.25%
Minimum Regulatory Capital Required - Ratio			6.63%
Minimum Regulatory Provision To Be Well Capitalized - Ratio		8.00%	8.00%
Common equity tier I capital		$ 345,350	$ 317,782
Tier 1 leverage capital ratio:
Actual Regulatory Capital - Amount		$ 345,350	$ 317,782
Actual Regulatory Capital - Ratio		8.80%	8.54%
Minimum Regulatory Capital Required - Ratio		4.00%	4.00%
Minimum Regulatory Provision To Be Well Capitalized - Ratio		5.00%	5.00%
Common Equity Tier I Risk Based Capital Ratio		12.32%	12.05%
Minimum Requirement for capital Adequacy Including Capital Buffer Common Equity Tier I Risk-Based Capital Ratio		5.75%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets			5.13%
Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets		6.50%	6.50%
Tier II Capital [Domain]
Tier 1 leverage capital ratio:
Subordinated Debt		$ 15,000
Minimum [Member]
Tier 1 leverage capital ratio:
Capital Conservation Buffer		1.25%

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Shareholders' Equity (Narrative) (Details)		9 Months Ended	12 Months Ended
	Sep. 14, 2016 USD ($) $ / shares	Sep. 30, 2016	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($)	Oct. 16, 2015 $ / shares	Sep. 24, 2013 shares
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
number of years			2
Dividends declared to shareholders			$ 14,600,000	$ 12,900,000	$ 10,600,000
Stockholders' Equity Note, Stock Split Ratio, Numerator | shares				1
Stockholders' Equity Note, Stock Split Ratio, Denominator | shares				2
Share Price | $ / shares	$ 31.75
Stockholders' Equity Note, Stock Split, Reduction of Capital	$ 5,000			$ (5,000)
Stockholders' Equity Note, Stock Split, Conversion Ratio		1.5	1.5
Acadia Trust [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Dividends declared to shareholders					0
Subsidiaries [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Dividends declared to shareholders			$ 16,800,000	$ 16,000,000	$ 39,200,000
2012 Common Stock Repurchase Program [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Stock repurchase program, shares of common stock approved for repurchase | shares							375,000
Stock repurchased during period, shares | shares			0	374,250
Shares repurchased, average cost per share | $ / shares			$ 26.55
The percentage of the stock repurchase program's allotment repurchased during the period			99.80%
SBM Financial, Inc. [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Share Price | $ / shares						$ 26.32
SBM Financial, Inc. [Member] | Subsidiaries [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Dividends declared to shareholders				$ 30,000,000

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Earnings per Share (Computation of Basic and Diluted Earnings Per Share) (Details) $ / shares in Units, $ in Thousands		3 Months Ended								9 Months Ended	12 Months Ended
		Dec. 31, 2017 USD ($) $ / shares	Sep. 30, 2017 USD ($) $ / shares	Jun. 30, 2017 USD ($) $ / shares	Mar. 31, 2017 USD ($) $ / shares	Dec. 31, 2016 USD ($) $ / shares	Sep. 30, 2016 USD ($) $ / shares	Jun. 30, 2016 USD ($) $ / shares	Mar. 31, 2016 USD ($) $ / shares	Sep. 30, 2016	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Net income | $		$ (3,173)	$ 11,339	$ 10,234	$ 10,076	$ 10,902	$ 10,903	$ 9,616	$ 8,646		$ 28,476	$ 40,067	$ 20,952
Dividends and undistributed earnings allocated to participating securities(1) | $	[1]										(118)	(189)	(59)
Net income available to common shareholders | $											$ 28,358	$ 39,878	$ 20,893
Weighted-average common shares outstanding for basic EPS											15,509,665	15,422,160	12,031,294
Dilutive effect of stock-based awards	[2]										78,682	82,079	43,285
Weighted-average common and potential common shares for diluted EPS											15,588,347	15,504,239	12,074,579
Basic EPS | $ / shares		$ (0.20)	$ 0.72	$ 0.66	$ 0.65	$ 0.70	$ 0.70	$ 0.62	$ 0.56		$ 1.83	$ 2.59	$ 1.73
Diluted EPS | $ / shares		$ (0.20)	$ 0.72	$ 0.66	$ 0.64	$ 0.70	$ 0.70	$ 0.62	$ 0.56		$ 1.82	$ 2.57	$ 1.73
Shares that were not considered in computation of potential common shares for purposes of diluted EPS	[3]										0	0	19,875
Stockholders' Equity Note, Stock Split, Conversion Ratio										1.5	1.5

[1] Represents dividends paid and undistributed earnings allocated to nonvested stock-based awards that contain non-forfeitable rights to dividends.

[2] Represents the effect of the assumed exercise of stock options, and vesting of restricted shares and restricted stock units, and issuance of LTIP awards that have met the performance criteria, utilizing the treasury stock method.

[3] Represents stock-based awards not included in the computation of potential common shares for purposes of calculating diluted EPS as the exercise prices were greater than the average market price of the Company's common stock, and, therefore, are considered anti-dilutive.

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Stock-Based Compensation Plans (Additional Information) (Details) - USD ($)		12 Months Ended
	May 01, 2012	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash used to settle stock based compensation transactions		$ 902,000	$ 373,000	$ 157,000
Cash received from exercise of stock options		$ 98,000	$ 1,300,000	$ 736,000
Performance period		0 years	5 years 3 months 18 days	5 years 3 months 18 days
Percentage of total compensation		4.00%
Stock Option and Incentive Plan 2003 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of stock reserved and available for issuance	1,200,000.0
Stock Option and Incentive Plan 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, option granted, contractual life		10 years
Stock based compensation, vesting period		5 years
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of share based awards		$ 0	$ 16,000	$ 22,000
Share-based compensation		20,000	30,000	51,000
Tax benefit from share based compensation		21,000	36,000	59,000
Unrecognized compensation cost for nonvested stock options		$ 41,000
Unrecognized compensation cost, recognition period		2 years 3 months
Total intrinsic value of options exercised		$ 268,000	2,500,000	573,000
Stock Options [Member] | SBM Financial, Inc. [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit from share based compensation		21,000	378,000	0
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of share based awards		808,000	0	0
Share-based compensation		124,000	0	0
Tax benefit from share based compensation		27,000	0	0
Unrecognized compensation cost related to nonvested shares		$ 620,000
Granted		18,762
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of share based awards		$ 686,000	925,000	1,000,000
Share-based compensation		762,000	703,000	327,000
Tax benefit from share based compensation		164,000	246,000	114,000
Total intrinsic value of options exercised		697,000	502,000	0
Unrecognized compensation cost related to nonvested shares		$ 787,000
Granted		16,185
Management Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price as a percentage of fair market value on the date of grant		0.00%
Stock based compensation, vesting period		2 years
Grant date fair value of share based awards		$ 111,000	128,000	108,000
Share-based compensation		97,000	102,000	66,000
Tax benefit from share based compensation		21,000	36,000	23,000
Cash received from issuance of share based awards		180,000	241,000	220,000
Unrecognized compensation cost related to nonvested shares		$ 54,000
Granted		8,088
Management Stock Purchase Plan [Member] | Interest and Other Liabilities [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received from issuance of share based awards		$ 421,000	454,000
Long-Term Performance Share Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation		370,000	1,080,000	330,000
Tax benefit from share based compensation		80,000	378,000	116,000
Total intrinsic value of options exercised		$ 697,000	502,000	963,000
Performance period		3 years
Unrecognized compensation cost related to nonvested shares		$ 291,000
Granted		16,830
Deferred Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of share based awards		$ 118,000	111,000	93,000
Share-based compensation		97,000	81,000	62,000
Tax benefit from share based compensation		$ 21,000	$ 28,000	$ 22,000
Percentage of total compensation		10.00%
Percentage vested on 65th birthday		100.00%
Qualified Stock Options [Member] | Stock Option and Incentive Plan 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price as a percentage of fair market value on the date of grant	100.00%
Nonqualified Stock Options [Member] | Stock Option and Incentive Plan 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price as a percentage of fair market value on the date of grant	85.00%

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Stock-Based Compensation Plans (Schedule of Option Pricing Assumptions and Estimated Fair Value) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted-average dividend yield	0.00%	3.12%	3.01%
Weighted-average risk-free interest rate	0.00%	1.52%	1.50%
Weighted-average expected volatility	0.00%	29.64%	31.85%
Weighted-average expected life (in years)	0 years	5 years 3 months 18 days	5 years 3 months 18 days
Weighted-average fair value of options granted	$ 0.00	$ 5.17	$ 5.87

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Stock-Based Compensation Plans (Schedule of Stock Option Activity) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) $ / shares shares
Number of Shares
Options outstanding, beginning | shares	58,743
Granted | shares	0
Exercised | shares	(11,841)
Forfeited | shares	(2,400)
Expired | shares	1,425
Options outstanding, ending | shares	43,077
Options exercisable | shares	39,627
Weighted Average Exercise Price Per Share
Options outstanding, beginning | $ / shares	$ 20.38
Granted | $ / shares	0.00
Exercised | $ / shares	17.50
Forfeited | $ / shares	26.23
Expired | $ / shares	23.11
Options outstanding, ending | $ / shares	21.00
Options exercisable | $ / shares	$ 20.58
Weighted- Average Remaining Contractual Term
Options outstanding	3 years 5 months 12 days
Options exercisable	3 years 1 month 8 days
Aggregate Intrinsic Value
Options outstanding | $	$ 910
Options exercisable | $	$ 854

XML

Stock-Based Compensation Plans (Summary of Nonvested Stock Options) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Awards
Nonvested, beginning	9,450
Granted	0
Vested	(3,600)
Forfeited	(2,400)
Nonvested, ending	3,450	9,450
Weighted- Average Grant Date Fair Value
Nonvested, beginning	$ 6.59
Granted	0.00	$ 5.17	$ 5.87
Vested	7.80
Forfeited	5.48
Nonvested, ending	$ 6.11	$ 6.59

XML

Stock-Based Compensation Plans (Schedule of Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	$ 124	$ 0	$ 0
Income tax benefit	27	0	0
Fair value of grants vested	0	0	0
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	762	703	327
Income tax benefit	164	246	114
Fair value of grants vested	702	603	341
Management Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	97	102	66
Income tax benefit	21	36	23
Fair value of grants vested	91	57	92
Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	370	1,080	330
Income tax benefit	80	378	116
Fair value of grants vested	843	725	412
Deferred Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	97	81	62
Income tax benefit	21	28	22
Fair value of grants vested	$ 90	$ 75	$ 59

XML

Stock-Based Compensation Plans (Summary of Activity Related to Share Based Awards) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) $ / shares shares
Restricted Stock Units (RSUs) [Member]
Number of Shares
Nonvested, beginning | shares	0
Granted | shares	18,762
Vested | shares	0
Forfeited | shares	(1,285)
Nonvested, ending | shares	17,477
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 0.00
Granted | $ / shares	43.05
Vested | $ / shares	0.00
Forfeited | $ / shares	43.11
Nonvested, ending | $ / shares	$ 43.04
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	4 years 7 months 6 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 736
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 620
Restricted Stock [Member]
Number of Shares
Nonvested, beginning | shares	47,518
Granted | shares	16,185
Vested | shares	(22,553)
Forfeited | shares	(4,825)
Nonvested, ending | shares	36,325
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 28.16
Granted | $ / shares	42.39
Vested | $ / shares	31.14
Forfeited | $ / shares	28.93
Nonvested, ending | $ / shares	$ 32.56
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	2 years 2 months 12 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 1,530
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 787
Management Stock Purchase Plan [Member]
Number of Shares
Nonvested, beginning | shares	26,699
Granted | shares	8,088
Vested | shares	(11,777)
Forfeited | shares	(2,791)
Nonvested, ending | shares	20,219
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 7.85
Granted | $ / shares	13.73
Vested | $ / shares	7.73
Forfeited | $ / shares	11.49
Nonvested, ending | $ / shares	$ 9.77
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	1 year
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 431
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 54
Performance Shares [Member]
Number of Shares
Nonvested, beginning | shares	52,737
Granted | shares	16,830
Vested | shares	(32,323)
Forfeited | shares	(5,621)
Nonvested, ending | shares	31,623
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 27.01
Granted | $ / shares	41.39
Vested | $ / shares	26.09
Forfeited | $ / shares	26.97
Nonvested, ending | $ / shares	$ 35.60
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	1 year 8 months 12 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 1,332
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 291
DCRP Awards [Member]
Number of Shares
Nonvested, beginning | shares	14,244
Granted | shares	2,772
Vested | shares	(2,776)
Forfeited | shares	(4,192)
Nonvested, ending | shares	10,048
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 23.65
Granted | $ / shares	42.66
Vested | $ / shares	32.50
Forfeited | $ / shares	25.88
Nonvested, ending | $ / shares	$ 25.52
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	9 years 2 months 12 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 423
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 229

XML

Employee Benefit Plans (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
401(k)/Profit Sharing Plan
Contribution match, as a percentage of annual pay	4.00%
Contribution matches, percentage of pre-tax compensation	3.00%	3.00%	3.00%
Expenses under the 401(K)/Profit Sharing plan	$ 2,300	$ 2,200	$ 1,500
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum guaranteed benefit term	15 years
Accumulated benefit obligation	$ 12,300	$ 10,700
Expected amortization of net actuarial loss	$ 561
Supplemental Executive Retirement Plan [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of income replaced	65.00%
Supplemental Executive Retirement Plan [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of income replaced	75.00%
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected amortization of net actuarial loss	$ 53
Expected amortization of prior service cost	$ 24

XML

Employee Benefit Plans (Schedule of Changes in Benefit Obligation and Plan Assets) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Amounts recognized in accumulated other comprehensive loss
Total		$ 3,988	$ 2,130
Supplemental Executive Retirement Plan [Member]
Benefit obligations:
Beginning of year		11,523	11,052
Service cost		335	308	$ 307
Interest cost		452	432	424
Actuarial loss		1,955	219
Benefits paid		(475)	(488)
End of year		13,790	11,523	11,052
Fair value of plan assets:
Beginning of year		0	0
Employer contributions		475	488
Benefits paid		(475)	(488)
End of year		0	0	0
Unfunded status at end of year(1)	[1]	13,790	11,523
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss		3,504	1,791
Total		3,504	1,791
Other Postretirement Benefit Plan [Member]
Benefit obligations:
Beginning of year		3,635	3,447
Service cost		53	59	62
Interest cost		144	151	117
Actuarial loss		110	143
Benefits paid		(151)	(165)
End of year		3,791	3,635	3,447
Fair value of plan assets:
Beginning of year		0	0
Employer contributions		151	165
Benefits paid		(151)	(165)
End of year		0	0	$ 0
Unfunded status at end of year(1)	[1]	3,791	3,635
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss		654	495
Prior service credit		(170)	(156)
Total		$ 484	$ 339

[1] 1)Presented within other liabilities on the consolidated statements of condition.

XML

Employee Benefit Plans (Schedule of Net Period Benefit Cost and Other Amounts Recognized in Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Supplemental Executive Retirement Plan [Member]
Net period benefit cost
Service cost	$ 335	$ 308	$ 307
Interest cost	452	432	424
Recognized net actuarial loss	246	220	218
Amortization of prior service cost (credit)		7	19
Net periodic benefit cost	1,033	967	968
Changes in funded status recognized in other comprehensive loss, before taxes
Net actuarial (gain) loss arising during period	1,955	219	(32)
Amortization of net unrecognized actuarial loss	(246)	(220)	(218)
Amortization of prior service (cost) credit		(7)	(19)
Total recognized in OCI, before taxes	1,709	(8)	(269)
Total recognized in net periodic benefit cost and OCI, before taxes	2,742	959	699
Other Postretirement Benefit Plan [Member]
Net period benefit cost
Service cost	53	59	62
Interest cost	144	151	117
Recognized net actuarial loss	41	30	24
Amortization of prior service cost (credit)	(24)	(22)	(22)
Net periodic benefit cost	214	218	181
Changes in funded status recognized in other comprehensive loss, before taxes
Net actuarial (gain) loss arising during period	110	143	92
Amortization of net unrecognized actuarial loss	(41)	(30)	(24)
Amortization of prior service (cost) credit	24	22	22
Total recognized in OCI, before taxes	93	135	90
Total recognized in net periodic benefit cost and OCI, before taxes	$ 307	$ 353	$ 271

XML

Employee Benefit Plans (Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate for benefit obligation	3.60%	4.00%	4.00%
Discount rate for net periodic benefit cost	4.00%	4.00%	4.00%
Rate of compensation increase for benefit obligation	5.00%	4.00%	4.00%
Rate of compensation increase for net periodic benefit cost	5.00%	4.00%	4.00%
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate for benefit obligation	3.55%	4.00%	4.50%
Discount rate for net periodic benefit cost	4.00%	4.50%	4.00%
Health care cost trend rate assumed for future years	6.50%	7.00%	7.00%

XML

Employee Benefit Plans (Schedule of Estimated Future Benefit Payments) (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Supplemental Executive Retirement Plan [Member]
Expected future benefit payments under the plans:
2017	$ 473
2018	477
2019	486
2020	536
2021	566
2022- 2026	2,246
Other Postretirement Benefit Plan [Member]
Expected future benefit payments under the plans:
2017	156
2018	168
2019	173
2020	175
2021	187
2022- 2026	$ 1,061

XML

Other Non-Interest Income and Expenses (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other non-interest income [Line Items]
Other Income		$ 1,545	$ 4,830	$ 2,363
Other income		3,119	6,934	3,877
Employee-related costs(1)		1,852	1,660	1,841
Travel and Entertainment Expense	[1]	1,710	1,616	1,437
Postage, freight, and courier		1,655	1,754	1,430
Labor and Related Expense		49,965	48,072	37,220
Other expenses		5,731	5,657	4,502
Total		10,948	10,687	9,210
Customer loan swaps
Other non-interest income [Line Items]
Interest and Other Income		$ 1,574	$ 2,104	$ 1,514

[1] Employee-related costs include hiring, training, education, meeting and business travel costs.

XML

Commitments, Contingencies and Derivatives (Additional Information) (Details)	12 Months Ended
	Dec. 31, 2017 USD ($) swap	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Legal Proceedings [Line Items]
Loss Contingency Accrual	$ 0	$ 0
Derivative, Number of Interest Rate Swap Agreements | swap	2
Loss on Cash Flow Hedge Ineffectiveness	$ 0	0	$ 0
Unrealized Gain (Loss) on Derivatives	37,000	(289,000)
Expected reclassification of interest expense	936,000
Interest Rate Swap [Member]
Legal Proceedings [Line Items]
Notional amount of derivative	43,000,000	43,000,000
Net payments to counterparty	1,300,000	1,500,000	1,700,000
Cash held as collateral	8,100,000
Derivative, Fair Value, Net		(7,571,000)	(8,372,000)
Forward-Starting Interest Rate Swap [Member]
Legal Proceedings [Line Items]
Notional amount of derivative	50,000,000	50,000,000
Net payments to counterparty	288,000	490,000
Derivative, Fair Value, Net	21,000	(389,000)
Interest Rate Lock Commitments [Member]
Legal Proceedings [Line Items]
Notional amount of derivative	21,746,000	15,249,000
Derivative, Fair Value, Net	285,000	187,000
Unrealized Gain (Loss) on Derivatives	98,000	48,000	139,000
Forward Contracts [Member]
Legal Proceedings [Line Items]
Notional amount of derivative	8,065,000	15,125,000
Derivative, Fair Value, Net	142,000	278,000
Unrealized Gain (Loss) on Derivatives	(136,000)	278,000	$ 0
Loans [Member] | Interest Rate Swap [Member]
Legal Proceedings [Line Items]
Notional amount of derivative	703,336,000	532,526,000
Derivative, Fair Value, Net	$ 0	$ 0

XML

Commitments, Contingencies and Derivatives (Summary of Contractual and Notional Amounts of Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Home Equity Line of Credit [Member]
Financial Instruments [Line Items]
Contractual amounts of financial instrument	$ 477,401	$ 454,225
Commercial And Commercial Real Estate [Member]
Financial Instruments [Line Items]
Contractual amounts of financial instrument	49,482	83,103
Mortgage Loan Commitments [Member]
Financial Instruments [Line Items]
Contractual amounts of financial instrument	41,368	17,795
Letter of Credit [Member]
Financial Instruments [Line Items]
Contractual amounts of financial instrument	2,848	2,580
Other Commitments [Member]
Financial Instruments [Line Items]
Contractual amounts of financial instrument	523	432
Customer loan swaps
Financial Instruments [Line Items]
Notional amount of derivative	703,336	532,526
Forward-Starting Interest Rate Swap [Member]
Financial Instruments [Line Items]
Notional amount of derivative	50,000	50,000
Interest rate swaps
Financial Instruments [Line Items]
Notional amount of derivative	43,000	43,000
Interest Rate Lock Commitments [Member]
Financial Instruments [Line Items]
Notional amount of derivative	21,746	15,249
Forward Contracts [Member]
Financial Instruments [Line Items]
Notional amount of derivative	$ 8,065	$ 15,125

XML

Commitments, Contingencies and Derivatives (Commercial Loan Swaps) (Detail) - Interest Rate Swap [Member] swap in Thousands, $ in Thousands	Dec. 31, 2017 USD ($) swap	Dec. 31, 2016 USD ($) swap	Dec. 31, 2015 USD ($)
Derivative Asset [Abstract]
Derivative, Fair Value, Net		$ (7,571)	$ (8,372)
Notional Amount	$ 43,000	$ 43,000
federal home loan bank 30-day [Member]
Derivative Liability [Abstract]
Derivative Liability, Number of Instruments Held | swap	42	50
Derivative Liability, Notional Amount	$ 226,884	$ 266,263
Derivative, Net Liability Position, Aggregate Fair Value	$ (5,036)	$ (1,945)
Derivative Asset [Abstract]
Derivative Asset, Number of Instruments Held | swap	23	0
Derivative Asset, Notional Amount	$ 124,784	$ 0
Derivative, Fair Value, Net	$ 1,799	$ 0
Commercial and Industrial Sector [Member]
Derivative Asset [Abstract]
Derivative Asset, Number of Instruments Held | swap	65	50
Derivative Asset, Notional Amount	$ 351,668	$ 266,263
Derivative, Fair Value, Net	3,237	1,945
Loans [Member]
Derivative Asset [Abstract]
Derivative, Fair Value, Net	$ 0	$ 0
Derivative, Number of Instruments Held | swap	130	100
Notional Amount	$ 703,336	$ 532,526

XML

Commitments, Contingencies and Derivatives (Swapped Variable Cost for Fixed Cost and Terms of Interest Rate Swap Agreements) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Forward-Starting Interest Rate Swap [Member]
Derivative [Line Items]
Notional Amount	$ 50,000	$ 50,000
Derivative, Fair Value, Net	21	(389)
Forward-Starting Interest Rate Swap [Member] | Contract, One
Derivative [Line Items]
Notional Amount	$ 25,000
Trade Date	Feb. 25, 2015
Maturity Date	Feb. 25, 2018
Fixed Rate Paid	1.54%
Derivative, Fair Value, Net	$ 20	(152)
Forward-Starting Interest Rate Swap [Member] | Contract, Two
Derivative [Line Items]
Notional Amount	$ 25,000
Trade Date	Feb. 25, 2015
Maturity Date	Feb. 25, 2019
Fixed Rate Paid	1.74%
Derivative, Fair Value, Net	$ 1	(237)
Interest rate swaps
Derivative [Line Items]
Notional Amount	$ 43,000	43,000
Derivative, Fair Value, Net		(7,571)	$ (8,372)
Interest rate swaps | Contract, One
Derivative [Line Items]
Notional Amount		$ 10,000
Trade Date		Mar. 18, 2009
Maturity Date		Jun. 30, 2021
Fixed Rate Paid		5.09%
Derivative, Fair Value, Net		$ (527)	(806)
Interest rate swaps | Contract, Two
Derivative [Line Items]
Notional Amount		$ 10,000
Trade Date		Jul. 08, 2009
Maturity Date		Jun. 30, 2029
Fixed Rate Paid		5.84%
Derivative, Fair Value, Net		$ (2,133)	(2,321)
Interest rate swaps | Contract, Three
Derivative [Line Items]
Notional Amount		$ 10,000
Trade Date		May 06, 2010
Maturity Date		Jun. 30, 2030
Fixed Rate Paid		5.71%
Derivative, Fair Value, Net		$ (2,129)	(2,290)
Interest rate swaps | Contract, Four
Derivative [Line Items]
Notional Amount		$ 5,000
Trade Date		Mar. 14, 2011
Maturity Date		Mar. 30, 2031
Fixed Rate Paid		4.35%
Derivative, Fair Value, Net		$ (1,137)	(1,211)
Interest rate swaps | Contract, Five
Derivative [Line Items]
Notional Amount		$ 8,000
Trade Date		May 04, 2011
Maturity Date		Jul. 07, 2031
Fixed Rate Paid		4.14%
Derivative, Fair Value, Net		$ (1,645)	$ (1,744)

XML

Commitments, Contingencies and Derivatives (Derivatives Effect on Earnings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Effective portion of unrealized losses recognized within AOCI during the period, net of tax	$ (248)	$ (637)	$ (1,533)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$ 1,592	$ 2,026	$ 1,695

XML

Commitments, Contingencies and Derivatives (Interest rate locks) (Details) - Interest Rate Lock Commitments [Member] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Notional Amount	$ 21,746	$ 15,249
Derivative, Fair Value, Net	285	187
Derivative Liability, Fair Value, Gross Liability	(22)	(15)
Derivative Asset, Fair Value, Gross Asset	307	202
Other Liabilities [Member]
Other Commitments [Line Items]
Notional Amount	1,860	2,939
Other Assets [Member]
Other Commitments [Line Items]
Notional Amount	$ 19,886	$ 12,310

XML

Commitments, Contingencies and Derivatives (Forward Contracts) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Interest Rate Lock Commitments [Member]
Other Commitments [Line Items]
Notional Amount	$ 21,746	$ 15,249
Derivative Asset, Fair Value, Gross Asset	307	202
Derivative Liability, Fair Value, Gross Liability	(22)	(15)
Derivative, Fair Value, Net	285	187
Interest Rate Lock Commitments [Member] | Other Assets [Member]
Other Commitments [Line Items]
Notional Amount	19,886	12,310
Interest Rate Lock Commitments [Member] | Other Liabilities [Member]
Other Commitments [Line Items]
Notional Amount	1,860	2,939
Forward Contracts [Member]
Other Commitments [Line Items]
Notional Amount	8,065	15,125
Derivative Asset, Fair Value, Gross Asset	158	587
Derivative Liability, Fair Value, Gross Liability	(16)	(309)
Derivative, Fair Value, Net	142	278
Forward Contracts [Member] | Other Assets [Member]
Other Commitments [Line Items]
Notional Amount	6,692	14,250
Forward Contracts [Member] | Other Liabilities [Member]
Other Commitments [Line Items]
Notional Amount	$ 1,373	$ 875

XML

Fair Value (Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	$ 8,103	$ 14,836
Loans Held-for-sale	8,103	14,836
Financial Assets:
AFS securities	789,899	779,867
Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities	7,335	9,001
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	503,302	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	272,799	283,890
Equity Securities [Member]
Financial Assets:
AFS securities	806	741
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale	8,103	14,836
Financial Liabilities:
Junior subordinated debt interest rate swaps	7,571	8,372
Fair Value, Measurements, Recurring [Member] | Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities	7,335
Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	503,302	9,001
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	272,799	480,622
Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Financial Assets:
AFS securities	5,657	283,890
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Financial Assets:
AFS securities	806	5,613
Readily Available Market Prices (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0	0
Financial Assets:
AFS securities	0	0
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale	0	0
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Financial Assets:
AFS securities	0	0
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Financial Assets:
AFS securities	0	0
Observable Market Data (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	8,103	14,836
Financial Assets:
AFS securities	789,899	779,867
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale	8,103	14,836
Financial Liabilities:
Junior subordinated debt interest rate swaps	7,571	8,372
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities	7,335
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	503,302	9,001
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	272,799	480,622
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Financial Assets:
AFS securities	5,657	283,890
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Financial Assets:
AFS securities	806	5,613
Company Determined Fair Value (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0	0
Financial Assets:
AFS securities	0	0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale	0	0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Financial Assets:
AFS securities	0	0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Financial Assets:
AFS securities	0	0
Interest Rate Swap [Member]
Financial Assets:
Customer interest rate swaps	5,036	1,945
Financial Liabilities:
Junior subordinated debt interest rate swaps	7,571	8,372
Customer interest rate swaps	5,036	1,945
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	5,036	1,945
Financial Liabilities:
Customer interest rate swaps	5,036	1,945
Interest Rate Swap [Member] | Readily Available Market Prices (Level 1) [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Junior subordinated debt interest rate swaps	0	0
Customer interest rate swaps	0	0
Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member]
Financial Assets:
Customer interest rate swaps	5,036	1,945
Financial Liabilities:
Junior subordinated debt interest rate swaps	7,571	8,372
Customer interest rate swaps	5,036	1,945
Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	5,036	1,945
Financial Liabilities:
Customer interest rate swaps	5,036	1,945
Interest Rate Swap [Member] | Company Determined Fair Value (Level 3) [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Junior subordinated debt interest rate swaps	0	0
Customer interest rate swaps	0	0
Interest Rate Lock Commitments [Member]
Financial Assets:
Customer interest rate swaps	307	202
Financial Liabilities:
Customer interest rate swaps	22	15
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	307	202
Financial Liabilities:
Customer interest rate swaps	22	15
Interest Rate Lock Commitments [Member] | Readily Available Market Prices (Level 1) [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Customer interest rate swaps	0	0
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) [Member]
Financial Assets:
Customer interest rate swaps	307	202
Financial Liabilities:
Customer interest rate swaps	22	15
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	307	202
Financial Liabilities:
Customer interest rate swaps	22	15
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Customer interest rate swaps	0	0
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Customer interest rate swaps	0	0
Forward Contracts [Member]
Financial Assets:
Customer interest rate swaps	158	587
Financial Liabilities:
Junior subordinated debt interest rate swaps	21
Customer interest rate swaps	16	309
Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	158	587
Financial Liabilities:
Customer interest rate swaps	16	309
Forward Contracts [Member] | Readily Available Market Prices (Level 1) [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Junior subordinated debt interest rate swaps	0
Customer interest rate swaps	0	0
Forward Contracts [Member] | Observable Market Data (Level 2) [Member]
Financial Assets:
Customer interest rate swaps	158	587
Financial Liabilities:
Junior subordinated debt interest rate swaps	21
Customer interest rate swaps	16	309
Forward Contracts [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	158	587
Financial Liabilities:
Customer interest rate swaps	16	309
Forward Contracts [Member] | Company Determined Fair Value (Level 3) [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Junior subordinated debt interest rate swaps	0
Customer interest rate swaps	0	0
Forward-Starting Interest Rate Swap [Member]
Financial Liabilities:
Junior subordinated debt interest rate swaps		389
Forward-Starting Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Junior subordinated debt interest rate swaps	21	389
Forward-Starting Interest Rate Swap [Member] | Readily Available Market Prices (Level 1) [Member]
Financial Liabilities:
Junior subordinated debt interest rate swaps		0
Forward-Starting Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member]
Financial Liabilities:
Junior subordinated debt interest rate swaps		389
Forward-Starting Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Junior subordinated debt interest rate swaps	$ 21	389
Forward-Starting Interest Rate Swap [Member] | Company Determined Fair Value (Level 3) [Member]
Financial Liabilities:
Junior subordinated debt interest rate swaps		0
Other Assets [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		741
Other Assets [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		$ 741

XML

Fair Value (Summary of Assets Measured at Fair Value on Non Recurring Basis) (Details) - USD ($)		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, Individually Evaluated for Impairment		$ 13,590,000	$ 20,254,000	$ 15,235,000
non-financial assets measured at fair value on recurring basis		0
Impaired Loans Collateral Dependent [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets:
Assets, Fair Value Disclosure		3,696,000	500,000
Impaired Loans Collateral Dependent [Member] | Fair Value, Measurements, Nonrecurring [Member] | Company Determined Fair Value (Level 3) [Member]
Assets:
Assets, Fair Value Disclosure		3,696,000	500,000
Servicing Contracts [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets:
Assets, Fair Value Disclosure	[1]	0	1,090,000
Servicing Contracts [Member] | Fair Value, Measurements, Nonrecurring [Member] | Company Determined Fair Value (Level 3) [Member]
Assets:
Assets, Fair Value Disclosure	[1]		1,090,000
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets:
Assets, Fair Value Disclosure		130,000	922,000
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Company Determined Fair Value (Level 3) [Member]
Assets:
Assets, Fair Value Disclosure		130,000	922,000
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, Individually Evaluated for Impairment		500,000	250,000
Consumer loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, Individually Evaluated for Impairment			7,000	74,000
Commercial loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, Individually Evaluated for Impairment		$ 1,791,000	$ 2,028,000	$ 3,937,000

[1] Represents mortgage serving assets deemed to be impaired and a valuation allowance was established to carry at fair value at December 31, 2017 and 2016.

XML

Fair Value (Valuation Methodology and Unobservable Inputs for Level Three Assets Measured at Fair Value on Non Recurring Basis) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value		$ 130	$ 922
Company Determined Fair Value (Level 3) [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost			10.00%
Company Determined Fair Value (Level 3) [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost			10.00%
Company Determined Fair Value (Level 3) [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost			10.00%
Company Determined Fair Value (Level 3) [Member] | Impaired Loans Partially Charged Off [Member] | Market Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value		$ 86	$ 166
Company Determined Fair Value (Level 3) [Member] | Impaired Loans Partially Charged Off [Member] | Market Approach Valuation Technique [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		0.00%	0.00%
Fair Value Inputs, Discount Rate		0.00%	0.00%
Company Determined Fair Value (Level 3) [Member] | Impaired Loans Partially Charged Off [Member] | Market Approach Valuation Technique [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		10.00%	10.00%
Fair Value Inputs, Discount Rate		50.00%	0.00%
Company Determined Fair Value (Level 3) [Member] | Impaired Loans Partially Charged Off [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		6.00%	5.00%
Fair Value Inputs, Discount Rate		18.00%	0.00%
Company Determined Fair Value (Level 3) [Member] | Impaired Loans Specifically Reserved [Member] | Market Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	[1]	$ 3,610	$ 334
Company Determined Fair Value (Level 3) [Member] | Impaired Loans Specifically Reserved [Member] | Market Approach Valuation Technique [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		10.00%	10.00%
Fair Value Inputs, Discount Rate	[1]	0.00%	0.00%
Company Determined Fair Value (Level 3) [Member] | Impaired Loans Specifically Reserved [Member] | Market Approach Valuation Technique [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		10.00%	10.00%
Fair Value Inputs, Discount Rate	[1]	0.00%	50.00%
Company Determined Fair Value (Level 3) [Member] | Impaired Loans Specifically Reserved [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		10.00%	10.00%
Fair Value Inputs, Discount Rate	[1]	0.00%	13.00%
Company Determined Fair Value (Level 3) [Member] | Other real estate owned [Member] | Market Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value		$ 130	$ 922
Company Determined Fair Value (Level 3) [Member] | Other real estate owned [Member] | Market Approach Valuation Technique [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		10.00%
Fair Value Inputs, Discount Rate		20.00%	0.00%
Company Determined Fair Value (Level 3) [Member] | Other real estate owned [Member] | Market Approach Valuation Technique [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		10.00%
Fair Value Inputs, Discount Rate		20.00%	73.00%
Company Determined Fair Value (Level 3) [Member] | Other real estate owned [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost		10.00%
Fair Value Inputs, Discount Rate		20.00%	7.00%
Company Determined Fair Value (Level 3) [Member] | Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value		$ 130	$ 922

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XML

Fair Value (Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities) (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financial assets:
Cash and due from banks		$ 102,971	$ 87,707
AFS securities		789,899	779,867
HTM securities		94,073	94,609
Held-to-maturity Securities, Fair Value		94,913	94,596
Loans Held-for-sale, Fair Value Disclosure		8,103	14,836
Servicing Asset at Fair Value, Amount		1,766	1,701	$ 2,947	$ 1,447
Interest Receivable Fair Value Disclosure		9,595	8,654
Financial liabilities:
Deposits		2,995,269	2,826,484
Federal Home Loan Bank Borrowings, Fair Value Disclosure		541,683	530,435
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		10,699	10,836
Subordinated debentures		44,333	41,660
Interest payable		564	534
Readily Available Market Prices (Level 1) [Member]
Financial assets:
Cash and due from banks		102,971	87,707
AFS securities		0	0
Held-to-maturity Securities, Fair Value		0	0
Loans Held-for-sale, Fair Value Disclosure		0	0
Servicing Asset at Fair Value, Amount		0	0
Interest Receivable Fair Value Disclosure		0	0
Financial liabilities:
Deposits		0	0
Federal Home Loan Bank Borrowings, Fair Value Disclosure		0	0
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		0	0
Subordinated debentures		0	0
Interest payable		0	0
Observable Market Data (Level 2) [Member]
Financial assets:
Cash and due from banks		0	0
AFS securities		789,899	779,867
Held-to-maturity Securities, Fair Value		94,913	94,596
Loans Held-for-sale, Fair Value Disclosure		8,103	14,836
Servicing Asset at Fair Value, Amount		1,766	1,701
Interest Receivable Fair Value Disclosure		9,595	8,654
Financial liabilities:
Deposits		2,995,269	2,826,484
Federal Home Loan Bank Borrowings, Fair Value Disclosure		541,683	530,435
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		10,699	10,836
Subordinated debentures		44,333	41,660
Interest payable		564	534
Company Determined Fair Value (Level 3) [Member]
Financial assets:
Cash and due from banks		0	0
AFS securities		0	0
Held-to-maturity Securities, Fair Value		0	0
Loans Held-for-sale, Fair Value Disclosure		0	0
Servicing Asset at Fair Value, Amount		0	0
Interest Receivable Fair Value Disclosure		0	0
Financial liabilities:
Deposits		0	0
Federal Home Loan Bank Borrowings, Fair Value Disclosure		0	0
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		0	0
Subordinated debentures		0	0
Interest payable		0	0
Carrying Amount [Member]
Financial assets:
Cash and due from banks		102,971	87,707
AFS securities		789,899	779,867
HTM securities		94,073	94,609
Loans Held-for-sale, Fair Value Disclosure		8,103	14,836
Servicing Asset at Fair Value, Amount		1,025	1,210
Interest Receivable Fair Value Disclosure		9,595	8,654
Financial liabilities:
Deposits		3,000,491	2,828,529
Federal Home Loan Bank Borrowings, Fair Value Disclosure		541,867	530,129
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure		10,720	10,791
Subordinated debentures		58,911	58,755
Interest payable		564	534
Residential real estate loans
Financial assets:
Loans receivable, net of allowance	[1]	853,056	800,122
Residential real estate loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	0	0
Residential real estate loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	0	0
Residential real estate loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	853,056	800,122
Residential real estate loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[1]	853,283	798,334
Commercial real estate loans
Financial assets:
Loans receivable, net of allowance	[1]	1,115,618	1,006,249
Commercial real estate loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	0	0
Commercial real estate loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	0	0
Commercial real estate loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	1,115,618	1,006,249
Commercial real estate loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[1]	1,152,160	1,038,626
Commercial loans
Financial assets:
Loans receivable, net of allowance	[1],[2]	401,902	391,493
Commercial loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[1],[2]	0	0
Commercial loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[1],[2]	0	0
Commercial loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[1],[2]	401,902	391,493
Commercial loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[1],[2]	413,898	389,624
Home equity loans
Financial assets:
Loans receivable, net of allowance	[1]	318,230	327,292
Home equity loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	0	0
Home equity loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	0	0
Home equity loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	318,230	327,292
Home equity loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[1]	321,011	327,713
Consumer loans
Financial assets:
Loans receivable, net of allowance	[1]	17,335	16,845
Consumer loans | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	0	0
Consumer loans | Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	0	0
Consumer loans | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	[1]	17,335	16,845
Consumer loans | Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	[1]	17,916	17,151
Fair Value, Measurements, Recurring [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		7,571	8,372
Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		7,571	8,372
Forward-Starting Interest Rate Swap [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps			389
Forward-Starting Interest Rate Swap [Member] | Readily Available Market Prices (Level 1) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps			0
Forward-Starting Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps			389
Forward-Starting Interest Rate Swap [Member] | Company Determined Fair Value (Level 3) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps			0
Forward-Starting Interest Rate Swap [Member] | Carrying Amount [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps			389
Forward-Starting Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		21	389
Forward-Starting Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial liabilities:
Junior subordinated debt interest rate swaps		21	389
Interest Rate Swap [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		5,036	1,945
Financial liabilities:
Junior subordinated debt interest rate swaps		7,571	8,372
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		5,036	1,945
Interest Rate Swap [Member] | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0	0
Financial liabilities:
Junior subordinated debt interest rate swaps		0	0
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0	0
Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		5,036	1,945
Financial liabilities:
Junior subordinated debt interest rate swaps		7,571	8,372
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		5,036	1,945
Interest Rate Swap [Member] | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0	0
Financial liabilities:
Junior subordinated debt interest rate swaps		0	0
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0	0
Interest Rate Swap [Member] | Carrying Amount [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		5,036	1,945
Financial liabilities:
Junior subordinated debt interest rate swaps		7,571	8,372
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		5,036	1,945
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		5,036	1,945
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		5,036	1,945
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		5,036	1,945
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		5,036	1,945
Interest Rate Lock Commitments [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		307	202
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		22	15
Interest Rate Lock Commitments [Member] | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0	0
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0	0
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		307	202
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		22	15
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0	0
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0	0
Interest Rate Lock Commitments [Member] | Carrying Amount [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		307	202
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		22	15
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		307	202
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		22	15
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		307	202
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		22	15
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member] | Company Determined Fair Value (Level 3) [Member]
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0	0
Forward Contracts [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		158	587
Financial liabilities:
Junior subordinated debt interest rate swaps		21
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		16	309
Forward Contracts [Member] | Readily Available Market Prices (Level 1) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0	0
Financial liabilities:
Junior subordinated debt interest rate swaps		0
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0	0
Forward Contracts [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		158	587
Financial liabilities:
Junior subordinated debt interest rate swaps		21
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		16	309
Forward Contracts [Member] | Company Determined Fair Value (Level 3) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		0	0
Financial liabilities:
Junior subordinated debt interest rate swaps		0
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		0	0
Forward Contracts [Member] | Carrying Amount [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		158	587
Financial liabilities:
Junior subordinated debt interest rate swaps		21
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		16	309
Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		158	587
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		16	309
Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member] | Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value		158	587
Financial liabilities:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value		$ 16	$ 309

[1] (1)The presented carrying amount is net of the allocated ALL.

[2] (2)Includes the HPFC loan portfolio.

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Parent Company Financial Statements (Statements of Condition) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Investment in subsidiaries:
Other assets	$ 36,606	$ 30,844
Total assets	4,065,398	3,864,230
LIABILITIES AND SHAREHOLDERS' EQUITY
Accrued interest and other liabilities	49,996	44,479
Shareholders’ equity	403,413	391,547	$ 363,190	$ 245,109
Total liabilities and shareholders’ equity	4,065,398	3,864,230
Parent Company [Member]
ASSETS
Cash	29,365	29,905
Investment in subsidiaries:
Investment in subsidiary	444,235	429,100
Receivable from subsidiary	107	107
Other assets	14,806	12,420
Total assets	488,513	471,532
LIABILITIES AND SHAREHOLDERS' EQUITY
Subordinated debentures	58,911	58,755
Due to subsidiary	17	37
Accrued interest and other liabilities	26,172	21,193
Shareholders’ equity	403,413	391,547
Total liabilities and shareholders’ equity	$ 488,513	$ 471,532

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Parent Company Financial Statements (Statements of Income) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Dividend income from subsidiary									$ 1,100,000	$ 1,000,000	$ 579,000
Interest on borrowings									5,585,000	4,506,000	3,457,000
Income before income tax expense	$ 16,162,000	$ 16,817,000	$ 14,955,000	$ 14,420,000	$ 15,632,000	$ 15,945,000	$ 13,874,000	$ 12,088,000	62,354,000	57,539,000	30,859,000
Income tax (expense) benefit	(19,335,000)	(5,478,000)	(4,721,000)	(4,344,000)	(4,730,000)	(5,042,000)	(4,258,000)	(3,442,000)	(33,878,000)	(17,472,000)	(9,907,000)
Net income	$ (3,173,000)	$ 11,339,000	$ 10,234,000	$ 10,076,000	$ 10,902,000	$ 10,903,000	$ 9,616,000	$ 8,646,000	28,476,000	40,067,000	20,952,000
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Dividend income from subsidiary									16,800,000	16,000,000	39,200,000
Other income (loss)									145,000	239,000	(18,000)
Total operating income									16,945,000	16,239,000	39,182,000
Interest on borrowings									3,408,000	3,415,000	2,734,000
Fees to Bank									160,000	160,000	160,000
Other operating expenses									592,000	748,000	469,000
Total operating expenses									4,160,000	4,323,000	3,363,000
Income before equity in undistributed earnings of subsidiaries and income taxes									12,785,000	11,916,000	35,819,000
Equity in undistributed income (losses) of subsidiaries									17,405,000	26,773,000	(15,999,000)
Income before income tax expense									30,190,000	38,689,000	19,820,000
Income tax (expense) benefit									(1,714,000)	1,378,000	1,132,000
Net income									$ 28,476,000	$ 40,067,000	$ 20,952,000

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Parent Company Financial Statements (Statements of Cash Flows) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities
Net income	$ (3,173,000)	$ 11,339,000	$ 10,234,000	$ 10,076,000	$ 10,902,000	$ 10,903,000	$ 9,616,000	$ 8,646,000	$ 28,476,000	$ 40,067,000	$ 20,952,000
(Increase) decrease in other assets									12,060,000	11,836,000	(7,062,000)
Net cash provided by operating activities									58,334,000	58,510,000	15,918,000
Investing Activities
Net cash used in investing activities									(212,131,000)	(169,045,000)	(54,744,000)
Financing Activities
Issuance of subordinated debt, net of issuance costs									0	0	14,464,000
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings									606,000	(894,000)	(753,000)
Equity issuance costs									0	0	(612,000)
Cash dividends paid on common stock and cash in lieu for fractional shares paid due to stock split									(14,323,000)	(12,394,000)	(9,785,000)
Net cash provided by financing activities									169,061,000	118,754,000	57,501,000
Net increase in cash and cash equivalents									15,264,000	8,219,000	18,675,000
Cash and cash equivalents at beginning of year				87,707,000				79,488,000	87,707,000	79,488,000	60,813,000
Cash and cash equivalents at end of year	102,971,000				87,707,000				102,971,000	87,707,000	79,488,000
Parent Company [Member]
Operating Activities
Net income									28,476,000	40,067,000	20,952,000
Equity in undistributed (income) losses of subsidiaries									(17,405,000)	(26,655,000)	4,573,000
Gain on sale of investment securities									(32,000)	(4,000)	0
(Increase) decrease in receivable from subsidiaries									0	1,819,000	(1,901,000)
(Increase) decrease in other assets									(1,930,000)	1,213,000	(2,175,000)
Increase (decrease) in due to subsidiaries									(20,000)	(1,179,000)	1,216,000
Increase (decrease) in other liabilities									3,721,000	(2,519,000)	320,000
Net cash provided by operating activities									12,810,000	12,742,000	22,985,000
Investing Activities
Acquisition of SBM, net of cash acquired									0	0	(25,319,000)
Proceeds from Sale of Available-for-sale Securities, Equity									110,000	84,000	0
Net cash used in investing activities									110,000	84,000	(25,319,000)
Financing Activities
Issuance of subordinated debt, net of issuance costs									0	0	14,464,000
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings									606,000	(894,000)	(753,000)
Capital contribution from subsidiaries									1,469,000	1,997,000	836,000
Equity issuance costs									0	0	(612,000)
Cash dividends paid on common stock and cash in lieu for fractional shares paid due to stock split									(14,323,000)	(12,393,000)	(9,785,000)
Net cash provided by financing activities									(13,460,000)	(9,502,000)	5,656,000
Net increase in cash and cash equivalents									(540,000)	3,324,000	3,322,000
Cash and cash equivalents at beginning of year				$ 29,905,000				$ 26,581,000	29,905,000	26,581,000	23,259,000
Cash and cash equivalents at end of year	$ 29,365,000				$ 29,905,000				$ 29,365,000	$ 29,905,000	$ 26,581,000

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Quarterly Results of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 35,040	$ 34,710	$ 33,940	$ 32,414	$ 32,276	$ 32,594	$ 32,775	$ 31,981	$ 136,104	$ 129,626	$ 99,144
Interest expense	5,381	5,550	5,314	4,559	4,032	4,222	4,271	4,029	20,804	16,554	12,692
Net interest income	29,659	29,160	28,626	27,855	28,244	28,372	28,504	27,952	115,300	113,072	86,452
Provision for credit losses	238	817	1,401	579	255	1,279	2,852	872	3,035	5,258	1,936
Non-interest income	9,840	10,299	9,888	8,572	10,151	11,001	10,552	7,917	38,599	39,621	27,482
Non-interest expense	23,099	21,825	22,158	21,428	22,508	22,149	22,330	22,909	88,510	89,896	81,139
Income before income tax expense	16,162	16,817	14,955	14,420	15,632	15,945	13,874	12,088	62,354	57,539	30,859
Income tax expense	19,335	5,478	4,721	4,344	4,730	5,042	4,258	3,442	33,878	17,472	9,907
Net income	$ (3,173)	$ 11,339	$ 10,234	$ 10,076	$ 10,902	$ 10,903	$ 9,616	$ 8,646	$ 28,476	$ 40,067	$ 20,952
Per common share:
Basic earnings per share	$ (0.20)	$ 0.72	$ 0.66	$ 0.65	$ 0.70	$ 0.70	$ 0.62	$ 0.56	$ 1.83	$ 2.59	$ 1.73
Diluted earnings per share	(0.20)	$ 0.72	$ 0.66	$ 0.64	$ 0.70	$ 0.70	$ 0.62	$ 0.56	$ 1.82	$ 2.57	$ 1.73
Change in federal corporate income tax rate									$ 14,263	$ 0	$ 0
Impact of Restatement on Earnings Per Share, Diluted	$ 0.91