10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION 

Washington, D.C. 20549

FORM 10-Q

x       QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2018

OR

¨       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	(I.R.S. Employer
incorporation or organization)	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

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 ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes x          No ¨

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 the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

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

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 accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ¨          No x

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practical date:

Outstanding at April 27, 2018:  Common stock (no par value) 15,566,603 shares.

CAMDEN NATIONAL CORPORATION

FORM 10-Q FOR THE QUARTER ENDED MARCH 31, 2018

TABLE OF CONTENTS OF INFORMATION REQUIRED IN REPORT

		PAGE
PART I.  FINANCIAL INFORMATION
ITEM 1.	FINANCIAL STATEMENTS
	Consolidated Statements of Condition - March 31, 2018 and December 31, 2017	3
	Consolidated Statements of Income - Three Months Ended March 31, 2018 and 2017	4
	Consolidated Statements of Comprehensive Income - Three Months Ended March 31, 2018 and 2017	5
	Consolidated Statements of Changes in Shareholders’ Equity - Three Months Ended March 31, 2018 and 2017	6
	Consolidated Statements of Cash Flows - Three Months Ended March 31, 2018 and 2017	7
	Notes to the Unaudited Consolidated Financial Statements	8
ITEM 2.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	43
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK	61
ITEM 4.	CONTROLS AND PROCEDURES	63
PART II. OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS	64
ITEM 1A.	RISK FACTORS	64
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	64
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	64
ITEM 4.	MINE SAFETY DISCLOSURES	64
ITEM 5.	OTHER INFORMATION	64
ITEM 6.	EXHIBITS	65
SIGNATURES		66

2

PART I. FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

CONSOLIDATED STATEMENTS OF CONDITION (unaudited)
(In thousands, except number of shares)	March 31,  2018			December 31,  2017
ASSETS
Cash and due from banks	$	48,159		$	44,057
Interest-bearing deposits in other banks	76,950			58,914
Total cash, cash equivalents and restricted cash	125,109			102,971
Investments:
Available-for-sale securities, at fair value	796,687			789,899
Held-to-maturity securities, at amortized cost (fair value of $91.9 million and $94.9 million, respectively)	93,192			94,073
Other investments	23,774			23,670
Total investments	913,653			907,642
Loans held for sale, at fair value	9,548			8,103
Loans	2,789,148			2,782,439
Less: allowance for loan losses	(22,990		)	(24,171		)
Net loans	2,766,158			2,758,268
Goodwill	94,697			94,697
Other intangible assets	4,774			4,955
Bank-owned life insurance	88,097			87,489
Premises and equipment, net	41,545			41,891
Deferred tax assets	23,181			22,776
Other assets	46,423			36,606
Total assets	$	4,113,185		$	4,065,398
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities
Deposits:
Demand	$	463,496		$	478,643
Interest checking	840,054			855,570
Savings and money market	1,005,329			985,508
Certificates of deposit	471,155			475,010
Brokered deposits	245,546			205,760
Total deposits	3,025,580			3,000,491
Short-term borrowings	552,624			541,796
Long-term borrowings	10,773			10,791
Subordinated debentures	58,950			58,911
Accrued interest and other liabilities	61,203			49,996
Total liabilities	3,709,130			3,661,985
Commitments and Contingencies
Shareholders’ Equity
Common stock, no par value: authorized 40,000,000 shares, issued and outstanding 15,565,868 and 15,524,704 on March 31, 2018 and December 31, 2017, respectively	156,860			156,904
Retained earnings	275,841			266,723
Accumulated other comprehensive loss:
Net unrealized losses on available-for-sale debt securities, net of tax	(20,227		)	(10,300		)
Net unrealized losses on cash flow hedging derivative instruments, net of tax	(4,547		)	(5,926		)
Net unrecognized losses on postretirement plans, net of tax	(3,872		)	(3,988		)
Total accumulated other comprehensive loss	(28,646		)	(20,214		)
Total shareholders’ equity	404,055			403,413
Total liabilities and shareholders’ equity	$	4,113,185		$	4,065,398

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

3

CONSOLIDATED STATEMENTS OF INCOME (unaudited)
	Three Months Ended   March 31,
(In thousands, except number of shares and per share data)	2018			2017
Interest Income
Interest and fees on loans	$	29,834		$	27,062
Interest on U.S. government and sponsored enterprise obligations (taxable)	4,225			4,256
Interest on state and political subdivision obligations (nontaxable)	672			702
Interest on deposits in other banks and other investments	547			394
Total interest income	35,278			32,414
Interest Expense
Interest on deposits	3,749			2,554
Interest on borrowings	1,780			1,161
Interest on subordinated debentures	847			844
Total interest expense	6,376			4,559
Net interest income	28,902			27,855
(Credit) provision for credit losses	(497		)	579
Net interest income after (credit) provision for credit losses	29,399			27,276
Non-Interest Income
Debit card income	1,929			1,834
Service charges on deposit accounts	1,836			1,823
Mortgage banking income, net	1,391			1,553
Income from fiduciary services	1,283			1,247
Brokerage and insurance commissions	650			453
Bank-owned life insurance	608			577
Other service charges and fees	462			468
Other income	645			617
Total non-interest income	8,804			8,572
Non-Interest Expense
Salaries and employee benefits	12,562			11,933
Furniture, equipment and data processing	2,586			2,325
Net occupancy costs	1,873			1,946
Consulting and professional fees	804			845
Debit card expense	730			660
Regulatory assessments	499			545
Amortization of intangible assets	181			472
Other real estate owned and collection costs (recoveries), net	75			(44		)
Other expenses	2,994			2,746
Total non-interest expense	22,304			21,428
Income before income tax expense	15,899			14,420
Income tax expense	3,079			4,344
Net Income	$	12,820		$	10,076
Per Share Data
Basic earnings per share	$	0.82		$	0.65
Diluted earnings per share	$	0.82		$	0.64
Weighted average number of common shares outstanding	15,541,975			15,488,848
Diluted weighted average number of common shares outstanding	15,603,380			15,568,639
Cash dividends declared per share	$	0.25		$	0.23

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

4

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited)
	Three Months Ended   March 31,
(In thousands)	2018			2017
Net Income	$	12,820		$	10,076
Other comprehensive loss:
Net change in unrealized losses on available-for-sale securities, net of tax of $2,666 and $247, respectively	(9,729		)	(458		)
Net change in unrealized losses on cash flow hedging derivatives:
Net change in unrealized losses on cash flow hedging derivatives, net of tax of ($355) and ($48) respectively	1,328			90
Net reclassification adjustment for effective portion of cash flow hedges, net of tax of ($13) and ($159), respectively(1)	51			296
Net change in unrealized losses on cash flow hedging derivatives, net of tax	1,379			386
Reclassification of amortization of net unrecognized actuarial loss and prior service cost, net of tax of ($31) and ($23), respectively(2)	116			43
Other comprehensive loss	(8,234		)	(29		)
Comprehensive Income	$	4,586		$	10,047

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

(2) Reclassified into the consolidated statements of income within salaries and employee benefits and other expenses.

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

5

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (unaudited)
	Common Stock							Accumulated Other Comprehensive Loss			Total Shareholders’ Equity
(In thousands, except number of shares and per share data)	Shares Outstanding	Amount			Retained Earnings
Balance at December 31, 2016	15,476,379	$	156,041		$	249,415		$	(13,909	)	$	391,547
Net income	—	—			10,076			—			10,076
Other comprehensive income, net of tax	—	—			—			(29		)	(29		)
Stock-based compensation expense	—	366			—			—			366
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings	31,646	(552		)	—			—			(552		)
Cash dividends declared ($0.23 per share)	—	—			(3,581		)	—			(3,581		)
Balance at March 31, 2017	15,508,025	$	155,855		$	255,910		$	(13,938	)	$	397,827
Balance at December 31, 2017	15,524,704	$	156,904		$	266,723		$	(20,214	)	$	403,413
Cumulative-effect adjustment (Note 2)	—	—			198			(198		)	—
Net income	—	—			12,820			—			12,820
Other comprehensive income, net of tax	—	—			—			(8,234		)	(8,234		)
Stock-based compensation expense	—	431			—			—			431
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings	41,164	(475		)	—			—			(475		)
Cash dividends declared ($0.25 per share)	—	—			(3,900		)	—			(3,900		)
Balance at March 31, 2018	15,565,868	$	156,860		$	275,841		$	(28,646	)	$	404,055

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

6

CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited)
	Three Months Ended   March 31,
(In thousands)	2018			2017
Operating Activities
Net Income	$	12,820		$	10,076
Adjustments to reconcile net income to net cash provided by operating activities:
(Credit) provision for credit losses	(497		)	579
Depreciation and amortization expense	940			916
Purchase accounting accretion, net	(514		)	(748		)
Investment securities amortization and accretion, net	763			786
Stock-based compensation expense	431			366
Amortization of intangible assets	181			472
Net increase in other real estate owned valuation allowance and gain on disposition	—			(27		)
Originations of mortgage loans held for sale	(46,641		)	(33,629		)
Proceeds from the sale of mortgage loans	46,426			44,320
Gain on sale of mortgage loans, net of origination costs	(1,220		)	(1,280		)
(Increase) decrease in other assets	(2,850		)	3,283
Increase (decrease) in other liabilities	7,218			(20		)
Net cash provided by operating activities	17,057			25,094
Investing Activities
Proceeds from maturities of held-to-maturity securities	750			—
Proceeds from the sale and maturity of available-for-sale securities	29,531			32,557
Purchase of available-for-sale securities	(50,152		)	(77,286		)
Net increase in loans	(7,008		)	(50,049		)
Purchase of Federal Home Loan Bank stock	(2,815		)	(2,143		)
Proceeds from sale of Federal Home Loan Bank stock	3,472			—
Proceeds from the sale of other real estate owned	—			329
Recoveries of previously charged-off loans	122			183
Proceeds from the liquidation of equity investment	205			—
Purchase of premises and equipment	(595		)	(264		)
Proceeds from the sale of premises and equipment	—			137
Net cash used by investing activities	(26,490		)	(96,536		)
Financing Activities
Net increase in deposits	25,126			108,736
Net proceeds from (repayments of ) borrowings less than 90 days	10,816			(37,779		)
Repayments of wholesale repurchase agreements	—			(5,000		)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings	(475		)	(552		)
Cash dividends paid on common stock	(3,896		)	(3,575		)
Net cash provided by financing activities	31,571			61,830
Net increase (decrease) in cash, cash equivalents and restricted cash	22,138			(9,612		)
Cash, cash equivalents, and restricted cash at beginning of period	102,971			87,707
Cash, cash equivalents and restricted cash at end of period	$	125,109		$	78,095
Supplemental information
Interest paid	$	6,384		$	4,549
Income taxes paid	69			57

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

7

NOTES TO THE UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollar amounts in tables expressed in thousands, except per share data)

NOTE 1 – BASIS OF PRESENTATION

The accompanying unaudited consolidated interim financial statements were prepared in accordance with instructions for Form 10-Q and, therefore, do not include all disclosures required by accounting principles generally accepted in the United States of America for complete presentation of financial statements. In the opinion of management, the consolidated financial statements contain all adjustments (consisting only of normal recurring accruals) necessary to present fairly the consolidated statements of condition of Camden National Corporation as of March 31, 2018 and December 31, 2017, the consolidated statements of income for the three months ended March 31, 2018 and 2017, the consolidated statements of comprehensive income for the three months ended March 31, 2018 and 2017, the consolidated statements of changes in shareholders' equity for the three months endedMarch 31, 2018 and 2017, and the consolidated statements of cash flows for the three months endedMarch 31, 2018 and 2017. All significant intercompany transactions and balances are eliminated in consolidation. Certain items from the prior period were reclassified to conform to the current period presentation. The income reported for the three months ended March 31, 2018 is not necessarily indicative of the results that may be expected for the full year. The information in this report should be read in conjunction with the consolidated financial statements and accompanying notes included in the year ended December 31, 2017 Annual Report on Form 10-K.

8

The acronyms and abbreviations identified below are used throughout this Form 10-Q, including Part I. "Financial Information." The following was provided to aid the reader and provide a reference page when reviewing this section of the Form 10-Q.

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

9

NOTE 2 – RECENT ACCOUNTING PRONOUNCEMENTS

Accounting Standards Adopted

The Company adopted the following new accounting standards in the first quarter of 2018 and such standards have been accounted for and presented within the accompanying consolidated financial statements for the three months ended March 31, 2018 as follows:

ASU 2014-09, Revenue from Contracts with Customers (Topic 606) ("ASU 2014-09") and ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date ("ASU 2015-14"): In May 2014, the FASB issued ASU 2014-09 followed by the issuance of ASU 2015-14 in August 2015, to defer the effective date of ASU 2014-09 by one year. ASU 2014-09 was issued to clarify the principles for recognizing revenue and to develop a common revenue standard. Effective January 1, 2018, the Company adopted ASU 2014-09 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; (iii) income from fiduciary services and (iv) investment program income. Through the Company's assessment, it was determined that there will be no cumulative-effect adjustment to beginning shareholders' equity under the modified-retrospective transition method within the consolidated financial statements as there was no change in revenue recognition upon adoption of ASU 2014-09.

The details of the revenue streams within the scope of ASU 2014-09 are as follows:

• Service charges on deposit accounts: Deposit-related fees, include, but are not limited to, overdraft income, service charge income, and other fees generated by the depositor relationship with the Bank. For each depositor relationship, an agreement and related disclosures outline the terms of the contract between the depositor and the Bank, including the assessment of fees and fee structure for its various products. The contract is day-to-day and can be closed by the customer or the Bank at any time. As such, the Company recognizes revenue at the time of the transaction as the performance obligation has been met.

The Company presents its revenues earned on service charges on deposit accounts within (i) service charges on deposit accounts and (ii) other service charges and fees on the consolidated statements of income.

• Debit card interchange income: The Bank has separate contracts with intermediaries and earns interchange revenue and incurs related expenses on debit card transactions of its deposit customers. Income earned and expenses incurred by the Bank are dependent on its depositors' debit card usage, including depositor spend, transaction type and merchant. The rates earned are determined by the intermediaries. The Company determined that while the contract for which revenues are directly earned is with the intermediary rather than the depositor, that the underlying contract with each depositor is required for the generation of debit card interchange income and it is the depositors' debit card usage that drives the revenues earned and related expenses incurred. The contract with the depositor is day-to-day and can be closed by the customer or the Bank at any time. As such, the Company recognized revenue at the time of the transaction as the performance obligation has been met.

The Company's debit card interchange revenue and related expenses are presented on a gross basis in accordance with ASU 2014-09 as clarified by ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations ("ASU 2016-08"), as it has control of the specified service prior to transfer to the depositor through the extension of credit.

The Bank pays to certain depositors cash rewards for debit card usage to promote usage and increase interchange revenue. As the consideration paid to its depositors is not for any separate or distinct service these costs are accounted for and presented as a reduction of debit card income upon adoption for periods beginning on January 1, 2018. The Company did not revise prior period presentation on its consolidated statements of income as the modified-retrospective transition method was used.

The Company presents its revenues earned on debit card income within debit card income and related expenses on debit card transactions within debit card expense on the consolidated statements of income.

10

• Fiduciary services income: The Company, through the Bank's wealth management and trust services department, doing business as Camden National Wealth Management, earns fees for its investment management and related services for its clients. Fees earned for its services are largely dependent on assets under management as of the last day of the month and do not contain performance clauses. Should the contract be terminated by either party, fees for services are earned up to the effective date of contract termination. As such, fiduciary services income is earned and recognized daily.

The Company presents its revenues earned on fiduciary services within income from fiduciary services on the consolidated statements of income.

• Investment program income: Under an investment program offered by the Bank, doing business as Camden Financial Consultant (“Program”), its clients are provided access to brokerage, advisory and insurance products offered through an unaffiliated third party, LPL Financial LLC¹ ("LPL Financial"). Certain Bank employees are registered securities representatives and/or registered investment advisor representatives of LPL Financial who operate in such capacity under Camden Financial Consultants to provide clients with brokerage, investment advisory and insurance related services. The Bank receives a portion of the commissions and fees received by LPL Financial from the sale of investment products and investment advisory services in accordance with the terms of the contract between the two parties.

The revenues earned by the Bank are net of administrative expenses and the portion retained by LPL Financial. The Bank does not have control of the specified services provided to its clients under the Program by LPL Financial. Revenues earned from Program-related services are presented on the consolidated statements of income on a net basis in accordance with ASU 2014-09 as clarified by ASU 2016-08.

The Company presents its revenues earned from Program-related services within brokerage and insurance commissions on the consolidated statements of income.

ASU No. 2016-01, Income Statement - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Liabilities ("ASU 2016-01"): In January 2016, the FASB issued ASU 2016-01 to enhance the reporting model for financial instruments to provide the users of financial statements with more useful information for decisions. Effective January 1, 2018, the Company adopted ASU 2016-01 and applied the provisions of the standard within its consolidated financial statements for the three months ended March 31, 2018, which included:

• The Company's equity investments are no longer designated and accounted for as AFS securities, with the change in fair value recognized within AOCI, net of tax. Instead, the change in fair value of equity investments with a readily determinable fair value are to be recognized within net income. For the three months ended March 31, 2018, the Company recognized an unrealized loss of $35,000 for the change in fair value of its equity investments within other income on the Company's consolidated statements of income. The recognition for the change in fair value within net income was applied prospectively, and the Company recorded a cumulative-effect adjustment as of January 1, 2018 for its equity investments to reclassify the unrealized gain, net of tax, of $198,000 previously recognized within AOCI to retained earnings.

• The Company used the "exit price" notion when measuring the fair value of financial instruments for disclosure purposes only. The Company previously used the "entry price" notion for purposes of measuring its loans held for investment for disclosure purposes only. The change in valuation methodology has been applied prospectively as it does not have a material effect on the comparability of the disclosure.

• The Company no longer discloses the method or significant assumptions used to estimate the fair value for its financial instruments measured at amortized cost on its consolidated statements of condition for which fair value is provided for disclosure purposes only.

______________________________________________________________________________________________________

1 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.

11

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"): In March 2017, the FASB issued ASU 2017-07 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. Prior to adoption, the Company presented all components of net periodic benefit costs within the salaries and employee benefits on the Company's consolidated statements of income. Upon adoption, the Company now presents the service cost component of net periodic benefit cost in the salaries and employee benefits line and all other components of net periodic cost within other expenses on its consolidated statements of income. The change in presentation has been applied retrospectively to prior periods represented on the Company's consolidated statements of income using the amounts previously disclosed within its prior year financial statements as a practical expedient.

ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"): In August 2016, the FASB issued ASU 2016-15 to address eight specific cash flow presentation matters within the statement of cash flows and reduce diversity of presentation across companies. Of the eight specific cash flow presentation matters addressed by the standard, it is noted that one matter addressed is of relevance to the Company based on its current and past operations: proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies. The standard states that cash proceeds received from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies, should be classified as cash inflows from investing activities within statement of cash flows.

The Company adopted the standard for financial reporting periods beginning after December 15, 2017 and it has been applied within the accompanying consolidated statement of cash flows using a retrospective transition method.

ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash ("ASU 2016-18"):In November 2017, the FASB issued ASU 2016-18 to reduce the diversity in practice for the classification and presentation of changes in restricted cash on the statement of cash flows. The standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents. As such, the statement of cash flows should consider the changes in amounts generally described as restricted cash or restricted cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown in the statements of cash flows.

The Company adopted the standard for financial reporting periods beginning after December 15, 2017 and it has been applied within the accompanying consolidated statement of cash flows using a retrospective transition method.

Accounting Standards Issued

The following are recently issued accounting pronouncements that have yet to be adopted by the Company:

ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"): In February 2016, the FASB issued ASU 2016-02 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.

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ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities ("ASU 2017-08"): In March 2017, the FASB issued ASU 2017-08 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.

ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12"): In August 2017, the FASB issued ASU 2017-12 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.

ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"): In June 2016, the FASB issued ASU 2016-13 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.

Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"): In January 2017, the FASB issued ASU 2017-04 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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NOTE 3 – EPS

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

	Three Months Ended   March 31,
	2018			2017
Net income	$	12,820		$	10,076
Dividends and undistributed earnings allocated to participating securities(1)	(40		)	(45		)
Net income available to common shareholders	$	12,780		$	10,031
Weighted-average common shares outstanding for basic EPS	15,541,975			15,488,848
Dilutive effect of stock-based awards(2)	61,405			79,791
Weighted-average common and potential common shares for diluted EPS	15,603,380			15,568,639
Earnings per common share(1):
Basic EPS	$	0.82		$	0.65
Diluted EPS	$	0.82		$	0.64

(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, vesting of restricted shares and vesting of restricted stock units utilizing the treasury stock method. Not included are the unvested LTIP awards as they have not met the performance criteria for the periods presented.

For the three months ended March 31, 2018 and 2017, there are no anti-dilutive stock based awards that have been excluded from the computation of potential common shares for purposes of calculating diluted EPS as the average market price of the Company's common stock is greater than the exercise prices.

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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NOTE 4 – INVESTMENTS

AFS and HTM Investments

The following table summarizes the amortized cost and estimated fair values of AFS and HTM securities, as of the dates indicated: 

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
March 31, 2018
AFS Investments (carried at fair value):
Obligations of states and political subdivisions	$	5,776	$	55	$	(4	)	$	5,827
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	517,823		490		(15,317		)	502,996
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	293,371		6		(11,098		)	282,279
Subordinated corporate bonds	5,485		119		(19		)	5,585
Total AFS investments	$	822,455	$	670	$	(26,438	)	$	796,687
HTM Investments (carried at amortized cost):
Obligations of states and political subdivisions	$	93,192	$	130	$	(1,448	)	$	91,874
Total HTM investments	$	93,192	$	130	$	(1,448	)	$	91,874
December 31, 2017
AFS Investments (carried at fair value):
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
Equity investments(1)	554		252		—			806
Total AFS investments	$	803,021	$	1,139	$	(14,261	)	$	789,899
HTM Investments (carried at amortized cost):
Obligations of states and political subdivisions	$	94,073	$	1,077	$	(237	)	$	94,913
Total HTM investments	$	94,073	$	1,077	$	(237	)	$	94,913

(1) As of December 31, 2017, equity investments were classified as AFS investments. Effective January 1, 2018, these investments were reclassified to other investments on the consolidated statements of condition as they are no longer eligible to be classified as AFS upon adoption of ASU 2016-01. Refer to Note 2 for further details.

Net unrealized losses on AFS investments at March 31, 2018 included in AOCI amounted to $20.2 million, net of a deferred tax benefit of $5.5 million. Net unrealized losses on AFS investments at December 31, 2017 included in AOCI amounted to $10.3 million, net of a deferred tax benefit of $2.8 million.

For the three months ended March 31, 2018 and 2017, the Company purchased debt investments of $50.1 million and $77.3 million, respectively, all of which were designated as AFS debt investments.

Impaired AFS and HTM Investments:

Management periodically reviews the Company’s AFS and HTM investments 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

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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 on AFS and HTM investments that were in a continuous loss position at March 31, 2018 and December 31, 2017, by length of time that an individual security in each category has 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
March 31, 2018
AFS Investments:
Obligations of states and political subdivisions	$	1,516	$	(4	)	$	—	$	—		$	1,516	$	(4	)
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	236,851		(5,661		)	233,957		(9,656		)	470,808		(15,317		)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	122,669		(2,308		)	154,622		(8,790		)	277,291		(11,098		)
Subordinated corporate bonds	965		(19		)	—		—			965		(19		)
Total AFS investments	$	362,001	$	(7,992	)	$	388,579	$	(18,446	)	$	750,580	$	(26,438	)
HTM Investments:
Obligations of states and political subdivisions	$	62,815	$	(958	)	$	10,225	$	(490	)	$	73,040	$	(1,448	)
Total HTM investments	$	62,815	$	(958	)	$	10,225	$	(490	)	$	73,040	$	(1,448	)
December 31, 2017
AFS Investments:
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 investments	$	324,078	$	(3,089	)	$	398,360	$	(11,172	)	$	722,438	$	(14,261	)
HTM Investments:
Obligations of states and political subdivisions	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
Total HTM investments	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)

At March 31, 2018 and December 31, 2017, the Company held 328 and 209 debt investments classified as AFS and HTM with a fair value of $823.6 million and $741.2 million that were in an unrealized loss position totaling $27.9 million and $14.5 million, respectively, that were considered temporary. Of these, MBS and CMOs with a fair value of $388.6 million and $398.4 million were in an unrealized loss position, and have been in an unrealized loss position for 12 months or more, totaling $18.4 million and $11.2 million at March 31, 2018 and December 31, 2017, respectively. The unrealized loss was reflective of current interest rates in excess of the yield received on debt investments and is not indicative of an overall change in credit quality or other factors with the Company's AFS and HTM investment portfolio. At March 31, 2018 and December 31, 2017, gross unrealized losses on the Company's AFS and HTM investments were 3.0% and 2.0%, respectively, of its respective fair value.

The Company has the intent and ability to retain its debt investments in an unrealized loss position at March 31, 2018 until the decline in value has recovered.

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Sale of AFS Investments:

For the three months ended March 31, 2018 and 2017, the Company did not sell any AFS investments.

AFS and HTM Investments Pledged:

At March 31, 2018 and December 31, 2017, AFS and HTM investments with an amortized cost of $684.3 million and $702.5 million and estimated fair values of $661.9 million and $691.2 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 the Company's AFS and HTM investments by contractual maturity at March 31, 2018, 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 Investments
Due in one year or less	$	5,307	$	5,302
Due after one year through five years	112,412		110,253
Due after five years through ten years	213,112		206,368
Due after ten years	491,624		474,764
	$	822,455	$	796,687
HTM Investments
Due in one year or less	$	1,418	$	1,418
Due after one year through five years	3,783		3,796
Due after five years through ten years	13,035		12,954
Due after ten years	74,956		73,706
	$	93,192	$	91,874

Other Investments

The following table summarizes the cost and estimated fair values of the Company's investment in equity securities, FHLBB stock and FRBB stock as presented within other investments on the consolidated statements of condition, as of the dates indicated: 

	Cost		Unrealized Gains		Unrealized Losses		Fair Value
March 31, 2018
Equity securities - bank stock (carried at fair value)(1)	$	544	$	217	$	—	$	761
FHLBB (carried at cost)	17,639		—		—		17,639
FRB (carried at cost)	5,374		—		—		5,374
Total other investments	$	23,557	$	217	$	—	$	23,774
December 31, 2017
FHLBB (carried at cost)	$	18,296	$	—	$	—	$	18,296
FRB (carried at cost)	5,374		—		—		5,374
Total other investments	$	23,670	$	—	$	—	$	23,670

(1) Effective January 1, 2018, these investments were reclassified to other investments on the consolidated statements of condition as they are no longer eligible for AFS classification upon adoption of ASU 2016-01. Refer to Note 2 for further details.

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For thethree months ended March 31, 2018, the Company recognized an unrealized loss of $35,000 due to the change in fair value of its bank stock equity securities, and has been presented within other income on the consolidated statements of income. In addition, the Company's investment in a reinsurance program liquidated during the three months ended March 31, 2018, and a gain of $195,000 was recognized within other income on the Company's 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. For the three months ended March 31, 2018 and 2017, the Company did not record any other-than-temporary impairment on its FHLBB and FRB stock.

NOTE 5 – LOANS AND ALLOWANCE FOR LOAN LOSSES

The composition of the Company’s loan portfolio, excluding residential loans held for sale, at March 31, 2018 and December 31, 2017 was as follows:   

	March 31, 2018		December 31, 2017
Residential real estate	$	860,533	$	858,369
Commercial real estate	1,169,533		1,164,023
Commercial	378,015		373,400
Home equity	320,642		323,378
Consumer	18,011		18,149
HPFC	42,414		45,120
Total loans	$	2,789,148	$	2,782,439

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:

	March 31, 2018			December 31, 2017
Net unamortized fair value mark discount on acquired loans	$	5,703		$	6,207
Net unamortized loan origination costs	(958		)	(963		)
Total	$	4,745		$	5,244

The Bank’s lending activities are primarily conducted in Maine, but also include a mortgage loan production office in Massachusetts and two commercial loan production offices 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.

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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.

There were no significant changes in the Company's ALL methodology during the three months ended March 31, 2018.

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.

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 & equipment, 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.

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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 presents the activity in the ALL and select loan information by portfolio segment for the three months ended March 31, 2018 and 2017, and for the year ended December 31, 2017: 

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Three Months Ended March 31, 2018
ALL for the three months ended:
Beginning balance	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	24,171
Loans charged off	(31		)	(426		)	(171		)	(149		)	(26		)	—			(803		)
Recoveries	—			13			63			43			3			—			122
Provision (credit)(1)	442			(1,164		)	63			166			20			(27		)	(500		)
Ending balance	$	5,497		$	10,286		$	4,126		$	2,427		$	230		$	424		$	22,990
ALL balance attributable to loans:
Individually evaluated for impairment	$	553		$	368		$	—		$	112		$	—		$	—		$	1,033
Collectively evaluated for impairment	4,944			9,918			4,126			2,315			230			424			21,957
Total ending ALL	$	5,497		$	10,286		$	4,126		$	2,427		$	230		$	424		$	22,990
Loans:
Individually evaluated for impairment	$	5,059		$	3,961		$	1,714		$	491		$	—		$	—		$	11,225
Collectively evaluated for impairment	855,474			1,165,572			376,301			320,151			18,011			42,414			2,777,923
Total ending loans balance	$	860,533		$	1,169,533		$	378,015		$	320,642		$	18,011		$	42,414		$	2,789,148
For The Three Months Ended March 31, 2017
ALL for the three months ended:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans charged off	(5		)	(3		)	(136		)	(1		)	(14		)	—			(159		)
Recoveries	—			103			77			1			2			—			183
Provision (credit)(1)	116			472			119			(87		)	6			(45		)	581
Ending balance	$	4,271		$	12,726		$	3,815		$	2,107		$	175		$	627		$	23,721
ALL balance attributable to loans:
Individually evaluated for impairment	$	485		$	1,100		$	—		$	83		$	—		$	66		$	1,734
Collectively evaluated for impairment	3,786			11,626			3,815			2,024			175			561			21,987
Total ending ALL	$	4,271		$	12,726		$	3,815		$	2,107		$	175		$	627		$	23,721
Loans:
Individually evaluated for impairment	$	4,408		$	13,191		$	1,994		$	430		$	7		$	98		$	20,128
Collectively evaluated for impairment	815,231			1,083,284			331,613			322,396			16,662			55,825			$	2,625,011
Total ending loans balance	$	819,639		$	1,096,475		$	333,607		$	322,826		$	16,669		$	55,923		$	2,645,139

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	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			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 to 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 ending loans balance	$	858,369		$	1,164,023		$	373,400		$	323,378		$	18,149		$	45,120		$	2,782,439

(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 March 31, 2018 and 2017, and December 31, 2017, the reserve for unfunded commitments was $23,000, $9,000 and $20,000, respectively.

The following reconciles the three months ended March 31, 2018 and 2017, and year ended December 31, 2017 (credit) provision for loan losses to the (credit) provision for credit losses as presented on the consolidated statement of income:

	Three Months Ended   March 31,						Year Ended December 31, 2017
	2018			2017
(Credit) provision for loan losses	$	(500	)	$	581		$	3,026
Change in reserve for unfunded commitments	3			(2		)	9
(Credit) provision for credit losses	$	(497	)	$	579		$	3,035

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 March 31, 2018, the non-residential building operators' industry exposure was 11% of the Company's total loan portfolio and 26% of the total commercial real estate portfolio. There were no other industry exposures exceeding 10% of the Company's total loan portfolio as of March 31, 2018.

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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, residential real estate, and HPFC 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.

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The following 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
March 31, 2018
Pass (Grades 1-6)	$	847,822	$	1,146,947	$	361,377	$	—	$	—	$	40,768	$	2,396,914
Performing	—		—		—		319,178		18,011		—		337,189
Special Mention (Grade 7)	662		8,510		12,437		—		—		174		21,783
Substandard (Grade 8)	12,049		14,076		4,201		—		—		1,472		31,798
Non-performing	—		—		—		1,464		—		—		1,464
Total	$	860,533	$	1,169,533	$	378,015	$	320,642	$	18,011	$	42,414	$	2,789,148
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

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 may 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
March 31, 2018
Residential real estate	$	2,969	$	533	$	4,762	$	8,264	$	852,269	$	860,533	$	—	$	6,185
Commercial real estate	1,455		72		4,167		5,694		1,163,839		1,169,533		—		4,603
Commercial	144		103		1,532		1,779		376,236		378,015		—		1,991
Home equity	1,121		101		1,083		2,305		318,337		320,642		—		1,464
Consumer	14		9		—		23		17,988		18,011		—		—
HPFC	109		419		655		1,183		41,231		42,414		—		655
Total	$	5,812	$	1,237	$	12,199	$	19,248	$	2,769,900	$	2,789,148	$	—	$	14,898
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

Interest income that would have been recognized if loans on non-accrual status had been current in accordance with their original terms was $162,000 and $210,000 for the three months ended March 31, 2018 and 2017, respectively.

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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. TDRs 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 the periods indicated:

	Number of Contracts		Recorded Investment				Specific Reserve
	March 31, 2018	December 31, 2017	March 31, 2018		December 31, 2017		March 31, 2018		December 31, 2017
Residential real estate	24	24	$	3,581	$	3,604	$	410	$	452
Commercial real estate	2	3	354		976		20		16
Commercial	7	7	1,339		1,345		—		—
Home equity	2	2	306		307		—		—
Total	35	36	$	5,580	$	6,232	$	430	$	468

At March 31, 2018, the Company had performing and non-performing TDRs with a recorded investment balance of $4.4 million and $1.2 million, respectively. 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.

The following represents loan modifications that qualify as TDRs that occurred for the three months ended March 31, 2018 and 2017:

	Number of Contracts		Pre-Modification Outstanding Recorded Investment				Post-Modification Outstanding Recorded Investment				Specific Reserve
	2018	2017	2018		2017		2018		2017		2018		2017
Residential real estate:
Maturity concession	—	1	$	—	$	151	$	—	$	151	$	—	$	15
Total	—	1	$	—	$	151	$	—	$	151	$	—	$	15

For the three months endedMarch 31, 2018 and 2017, no loans were modified as TDRs within the previous 12 months for which the borrower subsequently defaulted.

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Impaired Loans:

Impaired loans consist of non-accrual loans and TDRs 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 three months ended March 31, 2018 and 2017, and as of and for the year-ended December 31, 2017:

							For the Three Months Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
March 31, 2018:
With an allowance recorded:
Residential real estate	$	3,544	$	3,544	$	553	$	3,745	$	30
Commercial real estate	3,591		3,591		368		4,275		1
Commercial	—		—		—		—		—
Home equity	147		147		112		49		—
Consumer	—		—		—		—		—
HPFC	—		—		—		—		—
Ending balance	7,282		7,282		1,033		8,069		31
Without an allowance recorded:
Residential real estate	1,515		1,791		—		1,350		7
Commercial real estate	370		677		—		637		3
Commercial	1,714		2,923		—		1,740		2
Home equity	344		468		—		396		2
Consumer	—		—		—		—		—
HPFC	—		—		—		—		—
Ending balance	3,943		5,859		—		4,123		14
Total impaired loans	$	11,225	$	13,141	$	1,033	$	12,192	$	45
March 31, 2017:
With an allowance recorded:
Residential real estate	$	3,048	$	3,048	$	485	$	3,025	$	26
Commercial real estate	11,791		11,791		1,100		11,654		—
Commercial	1		1		—		—		—
Home equity	297		297		83		298		—
Consumer	—		—		—		—		—
HPFC	98		98		66		98		—
Ending Balance	15,235		15,235		1,734		15,075		26
Without an allowance recorded:
Residential real estate	1,360		1,740		—		1,292		2
Commercial real estate	1,400		1,707		—		1,704		10
Commercial	1,993		3,167		—		2,024		3
Home equity	133		269		—		139		—
Consumer	7		10		—		7		—
HPFC	—		—		—		—		—
Ending Balance	4,893		6,893		—		5,166		15
Total impaired loans	$	20,128	$	22,128	$	1,734	$	20,241	$	41

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							For the Year Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2017:
With an 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 an 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

Loan Sales:

For the three months ended March 31, 2018 and 2017, the Company sold $45.2 million and $43.0 million, respectively, of fixed rate residential mortgage loans on the secondary market that resulted in gains on the sale of loans (net of costs) of $1.2 million and $1.3 million, respectively.

At March 31, 2018 and December 31, 2017, the Company had certain residential mortgage loans with a principal balance of $9.5 million and $8.1 million, respectively, designated as held for sale. The Company has elected the fair value option of accounting for its loans held for sale, and at March 31, 2018 and December 31, 2017, recorded an unrealized gain of $47,000 and $37,000, respectively. For the three months ended March 31, 2018 and 2017, the Company recorded within mortgage banking income, net on its consolidated statements of income the net change in unrealized gains of $9,000 and $254,000, respectively, on its loans held for sale.

The Company has forward delivery commitments with a secondary market investor on each of its loans held for sale at March 31, 2018 and December 31, 2017. The fair value of its forward delivery commitments at March 31, 2018 and December 31, 2017 was $123,000 and $142,000, respectively. For the three months ended March 31, 2018 and 2017, the net unrealized loss 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 $19,000 and $118,000, respectively. Refer to Note 12 for further discussion of the Company's forward delivery commitments.

In-Process Foreclosure Proceedings:

At March 31, 2018 and December 31, 2017, the Company had $2.0 million and $1.9 million, respectively, 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.

FHLB Advances:

FHLB advances are those borrowings from the FHLBB greater than 90 days. FHLB advances are collateralized by a blanket lien on qualified collateral consisting primarily of loans with first mortgages secured by one- to four-family properties,

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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 March 31, 2018 and December 31, 2017.

Refer to Notes 4 and 10 of the consolidated financial statements for discussion of securities pledged as collateral.

NOTE 6 – 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 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 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 the Company and Bank 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 the 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, 2018, the Company and Bank were required to establish a capital conservation buffer of 1.875%, 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 March 31, 2018 and December 31, 2017, and specifically the Bank was "well capitalized" under prompt corrective action provisions for each period. There were no new conditions or events that occurred subsequent to March 31, 2018 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:

	March 31, 2018				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, 2017				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	$	403,941	14.32	%	9.88	%	N/A		$	396,451	14.14	%	9.25	%	N/A
Tier I risk-based capital ratio	365,930		12.98	%	7.88	%	N/A		357,261		12.74	%	7.25	%	N/A
Common equity Tier I risk-based capital ratio	322,930		11.45	%	6.38	%	N/A		316,677		11.30	%	5.75	%	N/A
Tier I leverage capital ratio	365,930		9.23	%	4.00	%	N/A		357,261		9.07	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	375,434	13.31	%	9.88	%	10.00	%	$	369,540	13.18	%	9.25	%	10.00	%
Tier I risk-based capital ratio	352,422		12.49	%	7.88	%	8.00	%	345,350		12.32	%	7.25	%	8.00	%
Common equity Tier I risk-based capital ratio	352,422		12.49	%	6.38	%	6.50	%	345,350		12.32	%	5.75	%	6.50	%
Tier I leverage capital ratio	352,422		8.92	%	4.00	%	5.00	%	345,350		8.80	%	4.00	%	5.00	%

In 2015, the Company issued $15.0 million of subordinated debentures, and in 2006 and 2008, it issued $43.0 million of junior subordinated debentures in connection with the issuance of trust preferred securities. 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 March 31, 2018 and December 31, 2017, $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 March 31,

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2018 and December 31, 2017, $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.

NOTE 7 – INCOME TAXES

The Company's effective income tax rate for the three months ended March 31, 2018 and 2017 was as follows:

	Three Months Ended   March 31,
	2018			2017
Income tax expense	$	3,079		$	4,344
Income before income tax expense	$	15,899		$	14,420
Effective tax rate(1)	19.4		%	30.1		%

(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%, effective January 1, 2018.

NOTE 8 – EMPLOYEE BENEFIT PLANS

The Company sponsors unfunded, non-qualified SERPs for certain officers and provides medical and life insurance to certain eligible retired employees. 

The components of net periodic benefit cost for the periods ended March 31, 2018 and 2017 were as follows:

Supplemental Executive Retirement Plan:

		Three Months Ended   March 31,
Net periodic pension cost	Income Statement Presentation	2018		2017
Service cost	Salaries and employee benefits	$	112	$	84
Interest cost	Other expenses	122		112
Recognized net actuarial loss	Other expenses	140		62
Total		$	374	$	258

Other Postretirement Benefit Plan:

		Three Months Ended   March 31,
Net periodic postretirement benefit cost	Income Statement Presentation	2018	2017
Service cost	Salaries and employee benefits	$12	$13
Interest cost	Other expenses	33	36
Recognized net actuarial loss	Other expenses	13	10
Amortization of prior service credit	Other expenses	(6)	(6)
Total		$52	$53

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NOTE 9 – BORROWINGS

The following summarizes the Company's short-term and long-term borrowed funds as presented on the consolidated statements of condition at:

	March 31, 2018		December 31, 2017
Short-Term Borrowings (mature within one year):
Customer repurchase agreements	$	256,274	$	244,646
FHLBB borrowings	135,000		250,000
Overnight borrowings	161,350		47,150
Total short-term borrowings	$	552,624	$	541,796
Long-Term Borrowings (maturity greater than one year):
FHLBB borrowings	$	10,000	$	10,000
Capital lease obligation	773		791
Total long-term borrowings	$	10,773	$	10,791

NOTE 10 – 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. Because the securities are treated as collateral and the agreement does not qualify for a full transfer of effective control, the transaction 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 table below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings and types of collateral as of March 31, 2018 and December 31, 2017:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
March 31, 2018
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	1,125	$	—	$	—	$	—	$	1,125
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	90,903		—		—		—		90,903
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	164,246		—		—		—		164,246
Total Customer Repurchase Agreements	256,274		—		—		—		256,274
Total Repurchase Agreements	$	256,274	$	—	$	—	$	—	$	256,274
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	$	244,646	$	—	$	—	$	—	$	244,646

Certain customers held CDs totaling $920,000 with the Bank at March 31, 2018 and December 31, 2017, 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.

NOTE 11 – FAIR VALUE MEASUREMENT AND DISCLOSURE

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 eligible financial instruments and other items at fair value. The Company has 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.

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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.

Debt Securities:  The fair value of investments in debt 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.

Equity Securities: The fair value of investments in equity 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 March 31, 2018 and December 31, 2017, 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.

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The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of March 31, 2018 and December 31, 2017, 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)
March 31, 2018
Financial assets:
Loans held for sale	$	9,548	$	—	$	9,548	$	—
AFS investments:
Obligations of states and political subdivisions	5,827		—		5,827		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	502,996		—		502,996		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	282,279		—		282,279		—
Subordinated corporate bonds	5,585		—		5,585		—
Equity securities - bank stock	761		—		761		—
Customer loan swaps	10,707		—		10,707		—
Fixed-rate mortgage interest rate lock commitments	308		—		308		—
Forward delivery commitments	145		—		145		—
FHLBB advance interest rate swaps	85		—		85		—
Financial liabilities:
Junior subordinated debt interest rate swaps	5,877		—		5,877		—
Customer loan swaps	10,707		—		10,707		—
Fixed-rate mortgage interest rate lock commitments	35		—		35		—
Forward delivery commitments	22		—		22		—
December 31, 2017
Financial assets:
Loans held for sale	$	8,103	$	—	$	8,103	$	—
AFS investments:
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 investments	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		—

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The Company did not have any transfers between Level 1 and Level 2 of the fair value hierarchy during the three months ended March 31, 2018. 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 market 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. At March 31, 2018 and December 31, 2017, the mortgage servicing assets were not carried at fair value.

Non-Financial Instruments Recorded at Fair Value on a Non-Recurring 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 and other intangible assets. 

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 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 have been no indications or triggering events during for the three months ended March 31, 2018 for which management believes that it is more likely than not that goodwill is impaired.

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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, then an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. There were no events or changes in circumstances for the three months ended March 31, 2018 that indicated 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 March 31, 2018 and December 31, 2017:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
March 31, 2018
Financial assets:
Collateral-dependent impaired loans	$	3,600	$	—	$	—	$	3,600
Non-financial assets:
OREO	130		—		—		130
December 31, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,696	$	—	$	—	$	3,696
Non-financial assets:
OREO	130		—		—		130

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The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a non-recurring basis at March 31, 2018 and December 31, 2017:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
March 31, 2018
Collateral-dependent impaired loans:
Partially charged-off	$	18	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
Specifically reserved	3,582		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 cost	10%	(10%)
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%)

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The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the periods indicated:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
March 31, 2018
Financial assets:
HTM securities	$	93,192	$	91,874	$	—	$	91,874	$	—
Residential real estate loans(1)	855,036		842,132		—		—		842,132
Commercial real estate loans(1)	1,159,247		1,119,406		—		—		1,119,406
Commercial loans(1)(2)	415,879		404,925		—		—		404,925
Home equity loans(1)	318,215		311,142		—		—		311,142
Consumer loans(1)	17,781		16,880		—		—		16,880
Servicing assets	972		1,840		—		—		1,840
Financial liabilities:
Time deposits	$	538,957	$	532,244	$	—	$	532,244	$	—
Short-term borrowings	552,624		552,289		—		552,289		—
Long-term borrowings	10,773		10,658		—		10,658		—
Subordinated debentures	58,950		45,588		—		45,588		—
December 31, 2017
Financial assets:
HTM securities	$	94,073	$	94,913	$	—	$	94,913	$	—
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
Financial liabilities:
Time deposits	$	517,032	$	512,483	$	—	$	512,483	$	—
Short-term borrowings	541,796		541,605		—		541,605		—
Long-term borrowings	10,791		10,777		—		10,777		—
Subordinated debentures	58,911		44,333		—		44,333		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

Excluded from the summary are financial instruments measured at fair value on a recurring and nonrecurring basis, as previously described.

The Company considers its financial instruments' current use to be the highest and best use of the instruments.

NOTE 12 – COMMITMENTS, CONTINGENCIESAND DERIVATIVES

Legal Contingencies 

In the normal course of business, the Company and its subsidiary 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.

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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 March 31, 2018 and December 31, 2017, the Company did not have any material loss contingencies for which accruals were provided for and/or disclosure was deemed 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:

	March 31, 2018		December 31,   2017
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	501,127	$	477,401
Residential	36,352		41,368
Commercial and commercial real estate	31,667		49,482
Letters of credit	3,426		2,848
Other commitments	1,151		523
Derivative Financial Instruments:
Customer loan swaps	$	708,316	$	703,336
Junior subordinated debt interest rate swaps	43,000		43,000
FHLBB advance interest rate swaps	25,000		50,000
Interest rate lock commitments	24,753		21,746
Forward delivery commitments	9,502		8,065

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 effort" 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.

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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 AOCI, net of tax. Quarterly, in conjunction with financial reporting, the Company assesses each cash flow hedge for ineffectiveness. To the extent any significant 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 AOCI into interest 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 Company's customer loans swaps with its commercial customers and the corresponding interest rate swap agreements with counterparty for the periods indicated:

		March 31, 2018						December 31, 2017
	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)	63	$	334,395	$	(10,707	)	42	$	226,884	$	(5,036	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	6	19,763		402			23	124,784		1,799
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	69	354,158		10,305			65	351,668		3,237
Total		138	$	708,316	$	—		130	$	703,336	$	—

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 collateral for contracts in a net asset position as requested.

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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 March 31, 2018, the Company posted $6.0 million of cash as collateral to the counterparty and was presented within other assets on the consolidated statements of financial condition.

The details of the junior subordinated debt interest rate swaps for the periods indicated were as follows: 

						March 31, 2018		December 31,   2017
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%	$	343	$	527
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	1,695		2,133
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	1,671		2,129
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	4.35%	899		1,137
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	4.14%	1,269		1,645
$	43,000					$	5,877	$	7,571

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

For the three months endedMarch 31, 2018 and 2017, 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 three months endedMarch 31, 2018 and 2017 were $275,000 and $346,000, respectively, and were classified as cash flows from operating activities in the Company's consolidated statements of cash flows.

FHLBB Advance Interest Rate Swaps:

On February 25, 2015, the Bank entered into two$25.0 million one year forward-starting interest rate swap arrangements with a counterparty to mitigate short-term interest rate risk. One contract matured on February 25, 2018 and the other is scheduled 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 three months endedMarch 31, 2018 and 2017, the Company did not record any ineffectiveness 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 Bank (or counterparty) is not readily available and is presented within cash and due from banks on the Company's consolidated statements of condition. At March 31, 2018, the counterparty posted to the Bank $10.4 million of cash as collateral on its FHLBB advance interest rate swap and customer loan swap contracts. The collateral posted by the counterparty to the Bank is not readily available and has been designated as restricted cash and was presented within total cash, cash equivalents and restricted cash on the consolidated statements of condition.

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

						March 31, 2018		December 31,   2017
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)		Fair Value(1)
$	25,000	2/25/2015	2/25/2018	1-Month USD LIBOR	1.54%	$	—	$	20
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	85		1
						$	85	$	21

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

Net payments to the counterparty for the three months endedMarch 31, 2018 and 2017 were $9,000 and $109,000, respectively, and were classified as cash flows from operating activities in the consolidated statements of cash flows.

Interest Rate Locks Commitments:

As part of the origination process of a residential loan, the Company may enter into rate lock agreements with its borrower, which is considered an 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. The Company's pipeline of mortgage loans with fixed-rate interest rate lock commitments for which the Company intends to sell the loan upon origination were as follows for the periods indicated:

		March 31, 2018					December 31, 2017
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other Assets	$	20,374	$	308		$	19,886	$	307
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	4,379		(35		)	1,860		(22		)
Total		$	24,753	$	273		$	21,746	$	285

For the three months ended March 31, 2018 and 2017, the net unrealized loss from the change in fair value on the Company's fixed-rate mortgage rate locks reported within mortgage banking income, net, on the consolidated statements of income were $12,000 for each period.

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 is to typically 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:

		March 31, 2018					December 31, 2017
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best effort")	Other Assets	$	8,155	$	145		$	6,692	$	158
Forward delivery commitments ("best effort")	Accrued interest and other liabilities	1,347		(22		)	1,373		(16		)
Total		$	9,502	$	123		$	8,065	$	142

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For the three months ended March 31, 2018 and 2017, the net unrealized loss 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 $19,000 and $118,000, 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 Three Months Ended March 31
	2018		2017
Derivatives designated as cash flow hedges:
Effective portion of unrealized gains recognized within AOCI during the period, net of tax	$	1,328	$	90
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	64	$	455

(1) Reclassified into the consolidated statements of income within interest expense.

The Company expects approximately $693,000 (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 March 31, 2018.

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ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION

AND RESULTS OF OPERATIONS

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

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 and other operational risks, including cybersecurity, 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 our Annual Report on Form 10-K for the year ended December 31, 2017, as updated by the Company's quarterly reports on Form 10-Q, including this report, and other filings with the Securities and Exchange Commission. 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 undertake no obligation to update any forward-looking statements to reflect changes in underlying assumptions or factors, new information, future events or other changes, except to the extent required by applicable law or regulation.  

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Acronyms and Abbreviations

The acronyms and abbreviations identified below are used throughout this Form 10-Q, including Part II. "Management's Discussion and Analysis of Financial Conditions and Results of Operations." The following was provided to aid the reader and provide a reference page when reviewing this section of the Form 10-Q.

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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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.

There have been no material changes to our critical accounting policies as disclosed within our Annual Report on Form 10-K for the year ended December 31, 2017. Refer to the Annual Report on Form 10-K for the year ended December 31, 2017 for discussion of the Company's critical accounting policies.

Refer to Note 2 of the consolidated financial statements for discussion of accounting pronouncements adopted during the three months ended March 31, 2018 and the impact to our consolidated financial statements, as well as the status of issued accounting pronouncements yet to be adopted and implemented.

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 the efficiency ratio; tax equivalent net interest income; tangible book value per share; tangible common equity ratio; and return on average tangible equity. 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.

Return on Average Tangible Equity: Return on average tangible equity is the ratio of (i) net income, adjusted for tax effected amortization of intangible assets and goodwill impairment (the numerator) to (ii) average shareholders' equity, adjusted for average goodwill and other intangible assets. This adjusted financial ratio reflects a shareholders' return on tangible capital deployed in our business and is a common measure within our industry.

	Three Months Ended   March 31,
	2018			2017
Net income, as presented	$	12,820		$	10,076
Amortization of intangible assets, net of tax(1)	143			307
Net income, adjusted for amortization of intangible assets	$	12,963		$	10,383
Average shareholders' equity	$	402,626		$	394,276
Less: average goodwill and other intangible assets	(99,568		)	(101,229		)
Average tangible equity	$	303,058		$	293,047
Return on average tangible equity	17.35		%	14.37		%
Return on average shareholders' equity	12.91		%	10.36		%

(1) Reported on a tax-equivalent basis using the corporate federal income tax rate in effect for the period.

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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, as necessary to (ii) net interest income on a tax equivalent basis plus total non-interest income, adjusted for certain other income items, as necessary.

	Three Months Ended   March 31,
	2018			2017
Non-interest expense, as presented	$	22,304		$	21,428
Net interest income, as presented	$	28,902		$	27,855
Add: effect of tax-exempt income(1)	254			520
Non-interest income, as presented	8,804			8,572
Adjusted net interest income plus non-interest income	$	37,960		$	36,947
Non-GAAP efficiency ratio	58.76		%	58.00		%
GAAP efficiency ratio	59.15		%	58.82		%

(1) Reported on a tax-equivalent basis using the corporate federal income tax rate in effect for the period.

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. This number attempts to enhance the comparability of the performance of assets that have different tax liabilities.

	Three Months Ended   March 31,
	2018		2017
Net interest income, as presented	$	28,902	$	27,855
Add: effect of tax-exempt income(1)	254		520
Net interest income, tax equivalent	$	29,156	$	28,375

(1) Reported on a tax-equivalent basis using the corporate federal income tax rate in effect for the period.

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Tangible Book Value per Share. 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 Ratio. 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.

	March 31, 2018			December 31, 2017
Tangible Book Value Per Share
Shareholders’ equity, as presented	$	404,055		$	403,413
Less: goodwill and other intangibles	(99,471		)	(99,652		)
Tangible shareholders’ equity	$	304,584		$	303,761
Shares outstanding at period end	15,565,868			15,524,704
Tangible book value per share	$	19.57		$	19.57
Book value per share	$	25.96		$	25.99
Tangible Common Equity Ratio
Total assets	$	4,113,185		$	4,065,398
Less: goodwill and other intangibles	(99,471		)	(99,652		)
Tangible assets	$	4,013,714		$	3,965,746
Tangible common equity ratio	7.59		%	7.66		%
Shareholders' equity to total assets	9.82		%	9.92		%

EXECUTIVE OVERVIEW

Operating Results

Net income and diluted EPS for the three months ended March 31, 2018 was $12.8 million and $0.82 per share, respectively, , representing increases over the same period of 2017 of 27% and 28%. Net income growth for the three months ended March 31, 2018 over the same period last year was due to the following factors:

• A decrease in our effective tax rate as the federal corporate income tax rate was lowered from 35% to 21%, as tax reform was passed in December 2017 and went into effect on January 1, 2018. Our effective tax rate for the three months ended March 31, 2018 was 19.4%, compared to 30.1% for the three months ended March 31, 2017. As a result, the estimated benefit for the Company for the three months ended was $1.9 million in lower income tax expense, or $0.12 per diluted share.

• Total revenue (sum of net interest income and non-interest income) grew $1.3 million, or 4%, driven by net interest income growth of $1.0 million, or 4%. Our net interest income growth for the three months ended March 31, 2018 over the same period last year was due to average loan growth of $156.4 million, or 6%, and average demand deposit and interest checking growth of $177.4 million, or 16%. The importance of low-cost deposit growth can't be understated as borrowing rates have risen, highlighted by an increase in our average borrowing rate of 50 basis points to 1.68% for the three months ended March 31, 2018 over the same period last year.

• Negative (or credit) provision expense for the three months ended March 31, 2018 of $497,000, compared to an expense of $579,000 for three months ended March 31, 2017. The negative provision expense for three months ended March 31, 2018 was driven by strong asset quality across our loan portfolio and the favorable resolution of one large non-accruing commercial real estate loan, for which we were able release the specific reserve.

• Non-interest expense for the three months ended March 31, 2018 increased $876,000, or 4%, over the same period last year partially offsetting the income increases outlined above. Our efficiency ratio¹ for the three months ended March 31, 2018 was 58.76%, compared to 58.00% for the three months ended March 31, 2017.

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Our key profitability measures for the three months ended March 31, 2018 and 2017 were as follows:

	For the Three Months Ended
	March 31, 2018		March 31, 2017		Increase (Decrease)
Return on average assets	1.28	%	1.05	%	0.23	%
Return on average equity	12.91	%	10.36	%	2.55	%
Return on average tangible equity(1)	17.35	%	14.37	%	2.98	%

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

Financial Condition

As of March 31, 2018, total assets increased 1% to $4.1 billion since December 31, 2017. Total loans for the first three months of 2018 grew $6.7 million to $2.8 billion, while total investments grew $6.0 million to $913.7 million over the same period. At March 31, 2018 and 2017, total investments were 22% of total assets.

Total deposits at March 31, 2018 increased $25.1 million, or 1%, to $3.0 billion since December 31, 2017 and over the same period, total borrowings increased $10.8 million, or 2%, to $622.3 million. At March 31, 2018 and December 31, 2017, our loan-to-deposit ratio was 92% and 93%, respectively.

Asset quality remained strong across our loan portfolio throughout the first three months of 2018, highlighted by our non-performing assets to total assets ratio of 0.47% and a loans 30-89 days past due to total loans ratio of 0.21% at March 31, 2018. Non-performing loans decreased $1.1 million in the first three months of 2018 to $19.3 million, or 0.69% of total loans at March 31, 2018. The decrease in non-performing assets in the first three months of 2018 was driven by the favorable resolution of one large commercial real estate loan. Upon resolution, the associated loan reserve was released driving a negative provision expense for the first quarter of 2018 of $497,000 and a decrease in the allowance for loan losses to total loans ratio of 5 basis points to 0.82% at March 31, 2018 since December 31, 2017.

Our capital position remained strong at March 31, 2018, highlighted by a total risk-based capital ratio of 14.32%, well in excess of regulatory requirements, and a tangible common equity ratio¹ of 7.59%.

RESULTS OF OPERATIONS

Net Interest Income

Net interest income is the interest earned on loans, securities, and other interest-earning assets, plus net loan fees, origination costs, and accretion or amortization of fair value marks on loans and/or CDs created in purchase accounting, less the interest paid on interest-bearing deposits and borrowings. Net interest income, which is our largest source of revenue and accounted for 77% and 76% of total revenues (net interest income and non-interest income) for the three months ended March 31, 2018 and 2017, respectively, is affected by factors including, but not limited to, changes in interest rates, loan and deposit pricing strategies and competitive conditions, the volume and mix of interest-earning assets and liabilities, and the level of non-performing assets.

Our net interest margin on a fully-taxable basis, which is calculated as annualized net interest income on a fully-taxable basis over total average interest-earning assets, for the three months ended March 31, 2018 and 2017 was 3.10% and 3.15%, respectively.

Net Interest Income — Three months ended March 31, 2018 and 2017. Net interest income on a fully-taxable basis for the three months ended March 31, 2018 was $29.0 million compared to $28.4 million for the three months ended March 31, 2017. The increase in net interest income on a fully-taxable basis over this period of $781,000, or 3%, was primarily driven by average loan growth of $156.4 million, or 6%, and demand deposit and interest checking growth of $177.4 million, or 16%. This was partially offset by a decrease in our net interest margin on a fully-taxable basis of 5 basis points to 3.10% for the three months ended March 31, 2018, compared to the same period last year. The decrease in our net interest margin on a fully-taxable basis were driven by the following factors:

• For the three months ended March 31, 2018, loan and deposit fair value mark accretion income and income from collection on previously charged-off loans was $558,000, representing a decrease of $246,000, or 3 basis points, compared to the same period last year.

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• For the three months ended March 31, 2018, tax-equivalent interest income was $254,000, representing a decrease of $266,000, or 3 basis points, compared to the same period last year. Tax-equivalent interest income decreased primarily due to the decrease in the federal corporate income tax rate, effective for 2018.

The following table presents average balances, interest income, interest expense, and the corresponding average yields earned and cost of funds, as well as net interest income, net interest rate spread and net interest margin on a fully-taxable basis for the three months ended March 31, 2018 and 2017:

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Quarterly Average Balance, Interest and Yield/Rate Analysis
	For The Three Months Ended
	March 31, 2018								March 31, 2017
(In thousands)	Average Balance			Interest			Yield/Rate		Average Balance			Interest			Yield/Rate
Assets
Interest-earning assets:
Interest-bearing deposits in other banks(1)	$	52,510		$	184		1.40	%	$	34,529		$	60		0.69	%
Securities - taxable	826,529			4,588			2.22	%	833,162			4,590			2.20	%
Securities - nontaxable(2)	99,560			851			3.42	%	102,928			1,080			4.20	%
Loans(3)(4):
Residential real estate	860,783			8,859			4.12	%	814,626			8,357			4.10	%
Commercial real estate	1,171,598			12,297			4.20	%	1,076,788			10,574			3.93	%
Commercial(2)	349,963			3,737			4.27	%	319,556			3,266			4.09	%
Municipal(2)	17,277			142			3.33	%	16,071			134			3.39	%
Consumer	341,078			4,000			4.76	%	342,775			3,658			4.33	%
HPFC	43,757			874			7.99	%	58,252			1,215			8.34	%
Total loans	2,784,456			29,909			4.30	%	2,628,068			27,204			4.15	%
Total interest-earning assets(1)	3,763,055			35,532			3.78	%	3,598,687			32,934			3.67	%
Cash and due from banks	41,935								42,707
Other assets	274,582								285,695
Less: ALL	(24,205		)						(23,247		)
Total assets	$	4,055,367							$	3,903,842
Liabilities & Shareholders' Equity
Deposits:
Demand	$	452,629		$	—		—	%	$	391,671		$	—		—	%
Interest checking	833,410			775			0.38	%	716,940			269			0.15	%
Savings	493,660			77			0.06	%	489,041			73			0.06	%
Money market	487,685			790			0.66	%	483,914			540			0.45	%
Certificates of deposit(4)	472,213			1,169			1.00	%	463,786			1,008			0.88	%
Total deposits	2,739,597			2,811			0.42	%	2,545,352			1,890			0.30	%
Borrowings:
Brokered deposits	238,870			938			1.59	%	308,594			664			0.87	%
Customer repurchase agreements	237,056			424			0.72	%	221,590			176			0.32	%
Junior subordinated debentures	58,930			847			5.83	%	58,775			844			5.83	%
Other borrowings	328,141			1,356			1.68	%	330,918			985			1.21	%
Total borrowings	862,997			3,565			1.68	%	919,877			2,669			1.18	%
Total funding liabilities	3,602,594			6,376			0.72	%	3,465,229			4,559			0.53	%
Other liabilities	50,147								44,337
Shareholders' equity	402,626								394,276
Total liabilities & shareholders' equity	$	4,055,367							$	3,903,842
Net interest income (fully-taxable equivalent)				29,156								28,375
Less: fully-taxable equivalent adjustment				(254		)						(520		)
Net interest income				$	28,902							$	27,855
Net interest rate spread (fully-taxable equivalent)(1)							3.06	%							3.14	%
Net interest margin (fully-taxable equivalent)(1)							3.10	%							3.15	%
Net interest margin (fully-taxable equivalent), excluding fair value mark accretion and collection of previously charged-off acquired loans(1)(4)							3.04	%							3.06	%

(1) Prior period was revised to include average interest-bearing deposits in other banks in total average interest-earning assets. Previously, average interest-bearing deposits in other banks was presented in cash and due from banks.

(2) Reported on tax-equivalent basis calculated using the federal corporate income tax rate of 21% and 35% for the three months ended March 31, 2018 and 2017, respectively, including certain commercial loans.

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

(4) 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 three months ended March 31, 2018 and 2017 totaling $558,000 and $804,000, respectively.

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(Credit) Provision for Credit Losses

The (credit) provision for credit losses is comprised of the (credit) provision for loan losses and the (credit) provision for unfunded commitments.

The (credit) provision for loan losses, which makes up the vast majority of the (credit) provision for credit losses, is a recorded (credit) 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 (credit) 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 (credit) 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 (credit) provision for loan losses for the three months ended was ($500,000), compared to $581,000 for the three months ended March 31, 2017. The Company maintained strong asset quality across its loan portfolio throughout the first quarter of 2018 with non-performing loans to total loans of 0.69% at March 31, 2018, compared to 0.99% at March 31, 2017. Asset quality improvement over the past year led to a decrease in provision for credit losses of $1.1 million for the three months ended March 31, 2018 compared to the same period last year.

The (credit) 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 was presented within accrued interest and other liabilities on the consolidated statement of condition.

Please refer to “—Financial Condition—Asset Quality” below for additional discussion regarding the ALL and overall asset quality.

Non-Interest Income

The following table presents the components of non-interest income for the three months ended March 31, 2018 and 2017:

	Three Months Ended   March 31,						Change
	2018			2017			$			%
Debit card income	$	1,929		$	1,834		$	95		5	%
Service charges on deposit accounts	1,836			1,823			13			1	%
Mortgage banking income, net	1,391			1,553			(162		)	(10	)%
Income from fiduciary services	1,283			1,247			36			3	%
Brokerage and insurance commissions	650			453			197			43	%
Bank-owned life insurance	608			577			31			5	%
Other service charges and fees	462			468			(6		)	(1	)%
Other income	645			617			28			5	%
Total non-interest income	$	8,804		$	8,572		$	232		3	%
Non-interest income as a percentage of total revenues(1)	23		%	24		%

(1) Revenue is defined as the sum of net interest income and non-interest income.

Non-Interest Income — Three Months Ended March 31, 2018 and 2017. The significant changes in non-interest income for the three months ended March 31, 2018 compared to the three months ended March 31, 2017 included:

• A decrease in mortgage banking income primarily due to an unrealized loss of $146,000 due to the change in fair value on loans held for sale and related mortgage banking derivatives.

• An increase in brokerage and insurance commissions was driven by strong production and assets under management growth of 8% to $418.9 million at March 31, 2018 over the last year.

• An increase in other income was in part due to a one-time gain of $195,000 recognized upon the mandatory liquidation of our investment in a reinsurance program, partially offset by a decrease in fees from customer loan swaps of $153,000.

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Non-Interest Expense

The following table presents the components of non-interest expense for the three months ended March 31, 2018 and 2017:

	Three Months Ended   March 31,						Change
	2018			2017			$			%
Salaries and employee benefits	$	12,562		$	11,933		$	629		5	%
Furniture, equipment and data processing	2,586			2,325			261			11	%
Net occupancy costs	1,873			1,946			(73		)	(4	)%
Consulting and professional fees	804			845			(41		)	(5	)%
Debit card expense	730			660			70			11	%
Regulatory assessments	499			545			(46		)	(8	)%
Amortization of intangible assets	181			472			(291		)	(62	)%
Other real estate owned and collection costs, net	75			(44		)	119			270	%
Other expenses	2,994			2,746			248			9	%
Total non-interest expense	$	22,304		$	21,428		$	876		4	%
Non-GAAP efficiency ratio	58.76		%	58.00		%

Non-Interest Expense — Three Months Ended March 31, 2018 and 2017. The significant changes in non-interest expense for the three months ended March 31, 2018 compared to the three months ended March 31, 2017 included:

• An increase in salaries and employee benefits of 5% primarily driven by an increase salary costs and accrued bonuses due to normal annual merit increases, increased headcount and continued wage inflation.

• An increase in furniture, equipment and data processing costs primarily driven by an increase in technology investments and advancement costs of $264,000, or 15%, over the past year.

• A decrease in amortization of intangible assets as its trust relationship intangible assets were fully amortized as of December 31, 2017.

• An increase in other expenses primarily driven by an increase in external recruiting fees of $124,000, an increase in donations and marketing expenses of $73,000, and an increase in pension and postretirement benefit (excluding the service cost component, which was presented within salaries and employee benefits) of $48,000.

Income Tax Expense

For the three months ended March 31, 2018, we recorded income tax expense of $3.1 million on pre-tax income of $15.9 million, or an effective tax rate for the period of 19.4%, compared to $4.3 million of income tax expense on pre-tax income of $14.4 million, or an effective tax rate of 30.1%, for the three months ended March 31, 2017. The decrease in our effective tax rate was due to the decrease in the federal corporate income tax rate from 35% to 21%, effective for periods beginning on January 1, 2018, as the Tax Act was passed in December 2017. We estimate that the net income benefit due to the lower federal income tax rate for the three months ended March 31, 2018 was approximately $1.9 million. Our current estimated annual effective tax rate for 2018, excluding any discrete period items, is 19.9%.

At March 31, 2018 and December 31, 2017, net deferred tax assets totaled $23.2 million and $22.8 million, respectively, and we did not carry any valuation allowances on our deferred tax assets as of those dates. We continue monitor and assess the need for a valuation allowance on our deferred tax assets quarterly in conjunction with our financial reporting.

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 99% of our total investment securities portfolio at March 31, 2018 and December 31, 2017, 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.

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With the exception of our municipal bonds portfolio, we have historically designated our debt 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 March 31, 2018 and December 31, 2017, the fair value of debt securities designated as AFS was $796.7 million and $789.1 million, respectively, whereas the carrying value of our municipal bonds designated as HTM was $93.2 million and $94.1 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 continued to be accounted for and 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 March 31, 2018 and December 31, 2017, our investment in FHLBB stock totaled $17.6 million and $18.3 million, respectively, and our investment in FRB stock was $5.4 million.

At March 31, 2018 and December 31, 2017, our investment portfolio was 22% of total assets.

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

	Debt									Equity
	AFS			HTM			Total			Bank Stock(1)			FHLBB and FRB Stock			Other			Total			Total
Carrying value at December 31, 2017	$	789,093		$	94,073		$	883,166		$	796		$	23,670		$	10		$	24,476		$	907,642
Purchases	50,152			—			50,152			—			2,815			—			2,815			52,967
Sales, carrying value	—			—			—			—			(3,472		)	(10		)	(3,482		)	(3,482		)
Principal repayments, maturities and calls	(29,531		)	(750		)	(30,281		)	—			—			—			—			(30,281		)
Amortization, net	(632		)	(131		)	(763		)	—			—			—			—			(763		)
Change in unrealized losses	(12,395		)	—			(12,395		)	(35		)	—			—			(35		)	(12,430		)
Carrying value at March 31, 2018	$	796,687		$	93,192		$	889,879		$	761		$	23,013		$	—		$	23,774		$	913,653

(1) Effective January 1, 2018, upon adoption of ASU 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities ("ASU 2016-01"), equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) are to be measured at fair value with changes in fair value recognized in net income. The change in unrealized losses for the three months ended March 31, 2018 of $35,000 was presented within other income on the consolidated statements of income.

For the three months ended March 31, 2018 and 2017, we did not have net gains or (losses) on sale of investments. However, for the three months ended March 31, 2018, we recognized a gain of $195,000 within other income on the consolidated statements of income upon mandatory liquidation of a reinsurance program investment.

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 March 31, 2018 compared to December 31, 2017 remains relatively unchanged and well positioned to provide a stable source of cash flow. The duration of our debt investment securities portfolio, adjusting for calls when appropriate and consensus prepayment speeds, at March 31, 2018 was 4.1 years as compared to December 31, 2017 of 3.8 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 March 31, 2018, the amount of net premiums on our investment securities to be recognized in future periods totaled $11.7 million, which equated to a weighted-average premium above par of approximately 1%.

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Subsequent changes to the interest rate environment will continue to impact our investment yield and earned net interest income.

We review our investments 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 March 31, 2018 and December 31, 2017, we held debt securities that were in an unrealized loss position totaling $27.9 million and $14.5 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 4 of the consolidated financial statementsfor 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 March 31, 2018, followed by Massachusetts and New Hampshire, making up 8% and 5%, respectively.

The following table sets forth the composition of our loan portfolio as of the dates indicated:

	March 31, 2018			December 31, 2017			Change
							($)			(%)
Residential real estate	$	860,533		$	858,369		$	2,164		—	%
Commercial real estate	1,169,533			1,164,023			5,510			—	%
Commercial	378,015			373,400			4,615			1	%
Consumer and home equity	338,653			341,527			(2,874		)	(1	)%
HPFC	42,414			45,120			(2,706		)	(6	)%
Total loans	$	2,789,148		$	2,782,439		$	6,709		—	%
Commercial Loan Portfolio	$	1,589,962		$	1,582,543		$	7,419		—	%
Retail Loan Portfolio	$	1,199,186		$	1,199,896		$	(710	)	—	%
Commercial Portfolio Mix	57		%	57		%
Retail Portfolio Mix	43		%	43		%

For the three months ended March 31, 2018, we originated $85.5 million of residential mortgages and sold 55% of our production (including loans designated as held for sale at March 31, 2018).

At March 31, 2018, the principal balance of loans held for sale totaled $9.5 million, for which an unrealized gain of $47,000 was reported to carry it at fair value on our consolidated statements of condition. At December 31, 2017, the principal balance of loans held for sale totaled $8.1 million, for which an unrealized loss of $37,000 was reported to carry it at fair value on our consolidated statements of condition.

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Asset Quality

Non-Performing Assets.  Non-performing assets include non-accrual loans, accruing loans 90 days or more past due, accruing TDRs, and property acquired through foreclosure or repossession. The following table sets forth the make-up and amount of our non-performing assets as of the dates indicated: 

	March 31, 2018			December 31, 2017
Non-accrual loans:
Residential real estate	$	6,185		$	4,979
Commercial real estate	4,603			5,642
Commercial	1,991			2,000
Consumer and home equity loans	1,464			1,650
HPFC	655			1,043
Total non-accrual loans	14,898			15,314
Accruing loans past due 90 days	—			—
Accruing TDRs not included above	4,361			5,012
Total non-performing loans	19,259			20,326
Other real estate owned	130			130
Total non-performing assets	$	19,389		$	20,456
Non-accrual loans to total loans	0.53		%	0.55		%
Non-performing loans to total loans	0.69		%	0.73		%
ALL to non-performing loans	119.37		%	118.92		%
Non-performing assets to total assets	0.47		%	0.50		%
ALL to non-performing assets	118.57		%	118.16		%

Our asset quality for the first three months remained strong with non-performing loans to total loans of 0.69% and non-performing assets to total assets of 0.47% at March 31, 2018, compared to 0.73% and 0.50% at December 31, 2017, respectively.

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 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 a loss. These loans are not included in the above analysis of non-accrual loans. At March 31, 2018, potential problem loans amounted to $534,000, or 0.02% of total loans and 0.03% of our commercial loan portfolio.

Past Due Loans.  Past due loans consist of accruing loans that were between 30 and 89 days past due. The following table sets forth information concerning the past due loans at the date indicated:

	March 31, 2018			December 31, 2017
Accruing loans 30-89 days past due:
Residential real estate	$	2,777		$	5,277
Commercial real estate	1,121			1,135
Commercial	243			518
Consumer and home equity loans	1,190			1,197
HPFC	528			887
Total accruing loans 30-89 days past due	$	5,859		$	9,014
Accruing loans 30-89 days past due to total loans	0.21		%	0.32		%

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Allowance for Loan Losses.  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 ALL is increased by provisions charged to earnings and by recoveries of amounts previously charged-off, and is reduced by charge-offs on loans.

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

	At or For The Three Months Ended March 31,						At or For The Year Ended December 31, 2017
	2018			2017
ALL at the beginning of the period	$	24,171		$	23,116		$	23,116
(Credit) provision for loan losses	(500		)	581			3,026
Charge-offs:
Residential real estate	31			5			482
Commercial real estate	426			3			124
Commercial	171			136			1,014
Consumer and home equity	175			15			558
HPFC	—			—			290
Total charge-offs	803			159			2,468
Recoveries:
Residential real estate	1			—			30
Commercial real estate	13			103			141
Commercial	62			77			301
Consumer and home equity	46			3			19
HPFC	—			—			6
Total recoveries	122			183			497
Net charge-offs (recoveries)	681			(24		)	1,971
ALL at the end of the period	$	22,990		$	23,721		$	24,171
Components of allowance for credit losses:
Allowance for loan losses	$	22,990		$	23,721		$	24,171
Liability for unfunded credit commitments	23			9			20
Balance of allowance for credit losses at end of the period	$	23,013		$	23,730		$	24,191
Net charge-offs (annualized) to average loans	0.10		%	—		%	0.07		%
Provision for loan losses (annualized) to average loans	N.M.			0.09		%	0.11		%
ALL to total loans	0.82		%	0.90		%	0.87		%
ALL to net charge-offs (annualized)	843.98		%	N.M.			1,226.33		%

The determination of an appropriate level of ALL, and subsequent provision for loan losses which affects earnings, is based on our analysis of various economic factors and review of the loan portfolio. During our analysis and review, many factors are considered including, but not limited to, loan growth, payoffs of lower quality loans, recoveries on previously charged-off loans, improvement in the financial condition of the borrowers, risk rating downgrades/upgrades and charge-offs. We utilize a comprehensive approach toward determining the ALL, which includes an expanded risk rating system to assist us in identifying the risks being undertaken.

The decrease in the ALL of $1.2 million, or 5%, since December 31, 2017 to $23.0 million at March 31, 2018 was driven by continued asset quality improvement across our loan portfolio and the favorable resolution of one large commercial real estate loan that was on non-accrual for which the specific loan reserve was released driving a negative credit loss provision for the first quarter of 2018 of $497,000. In the first quarter of 2018, credit quality across our loan portfolio improved since year-end requiring less ALL at March 31, 2018. At March 31, 2018 and 2017, and December 31, 2017, loans designated as passing and performing were 98%, 97% and 98% of our total loans, respectively.

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We believe the ALL of $23.0 million, or 0.82% of total loans and 119.37% of total non-performing loans, at March 31, 2018 is appropriate given the current economic conditions in our service area and the condition of the loan portfolio. However, if conditions deteriorate the provision will likely increase.

Liabilities and Shareholders’ Equity

Deposits and Borrowings. Total deposits at March 31, 2018 increased $25.1 million to $3.0 billion since December 31, 2017, primarily due to brokered deposits growth of $39.8 million and savings and money market growth of $19.8 million, partially offset by a decrease in demand and interest checking balances of $30.7 million, which was driven by the seasonality in our deposit flows within our markets. Our loan-to-deposit ratio at March 31, 2018 and December 31, 2017 was 92% and 93%, respectively.

Total borrowings at March 31, 2018 were $622.3 million, representing an increase of $10.8 million, or 2% since December 31, 2018. The increase was due to an increase in customer repurchase agreements of $11.6 million.

Shareholders' Equity. Total shareholders' equity at March 31, 2018 increased $642,000 to $404.1 million since December 31, 2017. The increase was primarily due to net income for the three months ended March 31, 2018 of $12.8 million, partially offset by a change in AOCI of $8.2 million and dividends declared of $3.9 million, or $0.25 per share for the three months ended March 31, 2018.

The following table presents certain information regarding shareholders’ equity as of or for the periods indicated:

	At or For The Three Months Ended   March 31,						At or For The Year Ended December 31, 2017
	2018			2017
Return on average assets	1.28		%	1.05		%	0.71		%
Return on average equity	12.91		%	10.36		%	7.00		%
Average equity to average assets	9.93		%	10.10		%	10.19		%
Dividend payout ratio	30.40		%	35.54		%	51.43		%
Book value per share	$	25.96		$	25.65		$	25.99
Dividends declared per share	$	0.25		$	0.23		$	0.94

Refer to "Capital Resources" and Note 6 of the consolidated financial statements further discussion of the Company and Bank's capital resources and regulatory capital requirements.

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 requirements. We monitor liquidity in accordance with internal guidelines and all applicable regulatory requirements. As of March 31, 2018 and December 31, 2017, 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 three months ended March 31, 2018, average deposits (excluding brokered deposits) of $2.7 billion increased $194.2 million, or 8%, compared to the same period last year. Average core deposits (demand, interest checking, savings and money market) of $2.3 billion for the three months ended March 31, 2018 increased $185.8 million, or 9%, compared to the same period a year ago. Included within our money market deposits at March 31, 2018 were $53.0 million of deposits from Camden National Wealth Management, our wealth management and trust department, which represents client funds. These deposits fluctuate with changes in the portfolios of its clients.

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 three

57

months ended March 31, 2018 average total borrowings (including brokered deposits) decreased $56.9 million to $863.0 million compared to the same period last year. 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 $101.7 million as of March 31, 2018. We had no outstanding balances on these lines of credit at March 31, 2018. Customer repurchase agreements are secured by mortgage-backed securities and government-sponsored enterprises. The Company also has a $10.0 million line of credit with a maturity date of December 20, 2018. We had no outstanding balance on these lines of credit at March 31, 2018.

We believe our investment 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. 

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 $404.1 million and $403.4 million at March 31, 2018 and December 31, 2017, respectively, which amounted to 10% of total assets. Refer to "— Financial Condition — Liabilities and Shareholders' Equity" above for discussion regarding changes in shareholders' equity for the three months ended March 31, 2018.

Our principal cash requirement is the payment of dividends on our common stock, as and when declared by the Board of Directors. We declared dividends to shareholders in the aggregate amount of $3.9 million and $3.6 million for the three months ended March 31, 2018 and 2017, respectively. For the three months ended March 31, 2018, the Company's Board of Directors approved a dividend of $0.25 per share, compared to a dividend of $0.23 per share for the same period last year, which drove an increase in dividends declared of $319,000 over the period. Our 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 have been and 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 are entitled to dividends, when and as declared by the Bank's Board of Directors from legally available funds. The Bank declared dividends to the Company in the aggregate amount of $6.0 million and $5.1 million for the three months ended March 31, 2018 and 2017, 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 6 of the consolidated financial statements for discussion and details of the Company and Bank's regulatory capital requirements. At March 31, 2018 and December 31, 2017, the Company and Bank exceeded all regulatory capital requirements, and the Bank continues to be classified as "well capitalized" under the prompt correction action provisions.

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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 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 12 of the consolidated financial statements for additional details.

At March 31, 2018, we had the following levels of off-balance sheet financial instruments:

	Total Amount		Commitment Expires in:
Off-Balance Sheet Financial Instruments	Committed		<1 Year		1 – 3 Years		4 – 5 Years		>5 Years
Home equity line of credit commitments	$	501,127	$	196,452	$	70,610	$	5,503	$	228,562
Commercial commitment letters	31,667		31,667		—		—		—
Residential loan origination	36,352		36,352		—		—		—
Letters of credit	3,426		3,426		—		—		—
Other commitments to extend credit	1,151		1,151		—		—		—
Customer loan swaps - notional value	708,316		—		18,656		161,447		528,213
FHLBB advance interest rate swaps - notional value	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	24,753		24,753		—		—		—
Forward delivery commitments - notional value	9,502		9,502		—		—		—
Total	$	1,384,294	$	328,303	$	89,266	$	176,950	$	789,775

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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.

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

At March 31, 2018, we had an obligation and commitment to make future payments under each of these contracts as follows:

	Total Amount		Payments Due per Period
Contractual obligations and commitments	of Obligations		<1 Year		1 – 3 Years		4 – 5 Years		>5 Years
Operating leases	$	6,039	$	1,429	$	2,097	$	1,086	$	1,427
Capital leases	1,032		126		384		262		260
FHLBB borrowings - overnight	161,350		161,350		—		—		—
FHLBB advances less than 90 days	135,000		135,000		—		—		—
FHLBB advances - other	10,000		—		10,000		—		—
Retail repurchase agreements	256,274		256,274		—		—
Junior subordinated debentures	44,357		—		—		—		44,357
Subordinated debentures	14,593		—		—		—		14,593
Other contractual obligations	2,215		2,215		—		—		—
Total	$	630,860	$	556,394	$	12,481	$	1,348	$	60,637

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.

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ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

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%.

As of March 31, 2018 and 2017, 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	March 31, 2018		March 31, 2017
Year 1
+200 basis points	0.23	%	(1.31	)%
-100 basis points	(2.16	)%	(1.75	)%
Year 2
+200 basis points	8.85	%	2.96	%
-100 basis points	(5.43	)%	(8.35	)%

61

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 increase slightly as loan rates reprice up to current rates and the cost of funds remains relatively unchanged. 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 become limited. If rates increase 200 basis points, net interest income is projected to increase slightly in the first year due to the repricing of assets outpacing that of liabilities. In the second year, net interest income is projected to continue 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 March 31, 2018, we had $43.0 million notional principal amount of interest rate swap agreements related to the junior subordinated debentures, $25.0 million notional principal amount of interest swap agreements related to our FHLBB 30-day funding and $354.2 million notional principal amount of interest rate swap agreements related to our commercial loan level derivative program. The Board and Management ALCO monitor derivative activities relative to their expectations and our hedging policies.

62

ITEM 4.  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 Financial Officer (Principal Financial & Accounting Officer), regarding the effectiveness of the Company’s disclosure controls and procedures, as of the end of the last fiscal quarter covered by this report.  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 Financial Officer (Principal Financial & 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 Securities and Exchange Commission’s rules and forms.

There was no change in the internal control over financial reporting that occurred during the period covered by this Quarterly Report on Form 10-Q that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting. 

63

PART II.  OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

 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 position as a whole.

ITEM 1A.  RISK FACTORS

There have been no material changes to the Company's Risk Factors described in Item 1A. of the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

ITEM 2.   UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

(a) None.

(b) None.

(c) None.

ITEM 3.  DEFAULTS UPON SENIOR SECURITIES

 None.

ITEM 4.  MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5.  OTHER INFORMATION

None.

64

ITEM 6.  EXHIBITS

Exhibit No.	Definition
10.1*+	Form of Restricted Stock Award Agreement under the Camden National Corporation Management Stock Purchase Plan.
10.2*+	Form of Restricted Stock Unit Award Agreement for Company Employees under the Camden National Corporation 2012 Equity and Incentive Plan.
10.3*+	Form of Restricted Stock Award Agreement under the Camden National Corporation 2012 Equity and Incentive Plan.
10.4*+	Form of Incentive Stock Option Agreement under the Camden National Corporation 2012 Equity and Incentive Plan.
10.5+	Camden National Corporation 2018-2020 Amended and Restated Long-Term Performance Share Plan (incorporated herein by reference to Exhibit 10.1 to the Company's Form 8-K filed with the Commission on April 27, 2018).
10.6+	Third Amendment to Camden National Corporation 2012 Equity and Incentive Plan, dated as of April 24, 2018 (incorporated herein by reference to Exhibit 10.2 to the Company's Form 8-K filed on April 27, 2018.
10.7+	Camden National Corporation Amended and Restated Management Stock Purchase Plan, under the Camden National Corporation 2012 Equity and Incentive Plan dated as of April 24, 2018 (incorporated herein by reference to Exhibit 10.3 to the Company's Form 8-K filed on April 27, 2018.
31.1*	Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934.
31.2*	Certification of Chief Financial Officer, Principal Financial & Accounting Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934.
32.1**	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**	Certification of Chief Financial Officer, Principal Financial & Accounting Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	XBRL (Extensible Business Reporting Language). The following materials from Camden National Corporation’s Quarterly Report on Form 10-Q for the period ended March 31, 2018, formatted in XBRL: (i) Consolidated Statements of Condition - March 31, 2018 and December 31, 2017; (ii) Consolidated Statements of Income - Three Months Ended March 31, 2018 and 2017; (iii) Consolidated Statements of Comprehensive Income - Three Months Ended March 31, 2018 and 2017; (iv) Consolidated Statements of Changes in Shareholders’ Equity - Three Months Ended March 31, 2018 and 2017; (v) Consolidated Statements of Cash Flows - Three Months Ended March 31, 2018 and 2017; and (vi) Notes to the Unaudited Consolidated Financial Statements.
*	Filed herewith.
**	Furnished herewith.
+	Management contract or a compensatory plan or arrangement.

65

SIGNATURES

Pursuant to the requirements 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.

CAMDEN NATIONAL CORPORATION
(Registrant)
/s/ Gregory A. Dufour	May 4, 2018
Gregory A. Dufour	Date
President and Chief Executive Officer (Principal Executive Officer)
/s/ Deborah A. Jordan	May 4, 2018
Deborah A. Jordan	Date
Chief Operating Officer, Chief Financial Officer and
Principal Financial & Accounting Officer

66

EX-10.1

RESTRICTED STOCK AWARD AGREEMENT 

UNDER THE CAMDEN NATIONAL CORPORATION

AMENDED AND RESTATED MANAGEMENT STOCK PURCHASE PLAN

Name of Grantee:

No. of Shares:

Grant Date:

Pursuant to the Camden National Corporation Amended and Restated Management Stock Purchase Plan (the “MSPP”), a component of the 2012 Equity and Incentive Plan, as amended through the date hereof (the “Plan”), Camden National Corporation (the “Company”) hereby grants a Restricted Stock Award (an “Award”) in lieu of a portion of their incentive payment to the Grantee named above. Upon acceptance of this Award, the Grantee shall purchase the number of shares of Common Stock, no par value per share (the “Restricted Stock”) at a price per share equal to two-thirds of the Fair Market Value of the Stock on the date of grant (the “Cost”), of the Company specified above subject to the restrictions and conditions set forth herein and in the Plan.

1.          Acceptance of Award. The Grantee shall have no rights with respect to this Award unless he or she shall have accepted this Award by signing and delivering to the Company a copy of this Award Agreement. Thereupon, the shares of Restricted Stock shall be issued in the name of the Grantee and the Grantee’s name shall be entered as the stockholder of record on the books of the Company. The Grantee shall have all the rights of a shareholder with respect to such Restricted Stock, subject, however, to the restrictions and conditions set forth in this Award Agreement and in the Plan.

2.          Certificates, Legend, Etc. Upon acceptance of this Award by the Grantee, certificates evidencing the shares of Restricted Stock granted herein shall be issued or evidence of book entry shall be made in the records of the Company in the name of the Grantee. Such certificates or notations on any book entry shall bear an appropriate legend, as determined by the Committee (as defined in Section 2 of the Plan) in its sole discretion, to the effect that such shares of Restricted Stock are subject to restrictions as set forth herein and in the Plan. Unless the Committee otherwise determines, any such certificates (if applicable) shall remain in the possession of the Company until the shares are vested as set forth herein and the Grantee shall deliver to the Company a stock power endorsed in blank.

3.          Voting/Dividends. Dividends on Restricted Stock shall be paid currently to the participant, and, unless the participant makes a Section 83(b) election, such dividends are treated as ordinary income (i.e., added to W-2, Box 1 earnings) until such Restricted Stock becomes vested and distributed. If the participant makes a Section 83(b) election with respect to the Restricted Stock, any dividends paid on such shares will be taxed as dividends. Upon the issuance of the shares of Restricted Stock hereunder, the Grantee shall have the rights of a stockholder of the Company with respect to voting the shares of Restricted Stock.

4.          Tender Offers and Merger Elections. The Grantee shall have the right to respond, or to direct the response, with respect to the related shares of Restricted Stock, to any tender offer, exchange offer, cash/stock merger consideration election or other offer made to, or elections made by, the holders of shares of Common Stock of the Company.

5.          Vesting.

(a)     Vesting of Restricted Stock. The restrictions and conditions in this Agreement shall lapse on the second anniversary of the Grant Date (the “Vesting Date”). Subsequent to the Vesting Date, the shares of Common Stock on which all restrictions and conditions have lapsed shall no longer be deemed Restricted Stock. The Committee may at any time accelerate the vesting schedule specified in this Paragraph 5.

(b)    Settlement Prior to Vesting. If the Grantee’s employment with the Company terminates for any reason other than Retirement prior to the Vesting Date, except as otherwise provided in the Grantee’s employment agreement, if any, the Grantee’s unvested Restricted Stock shall be forfeited back to the Company and he or she shall receive a cash payment equal to the lesser of (a) the Cost of such Restricted Stock or (b) an amount equal to the number of shares such Restricted Stock multiplied by the Fair Market Value of a share of Stock on the date of the Grantee’s termination of employment.

 (c)     Special Provision. As soon as the Grantee reaches age sixty-five (65) with at least five (5) years of consecutive service, any unvested Restricted Stock will accelerate and vest immediately (and

constitute a taxable event unless the Grantee made a timely Section 83(b) election under the Internal Revenue Code of 1986, as amended).

6.          Incorporation of Plan. Notwithstanding anything herein to the contrary, this Award Agreement shall be subject to and governed by all the terms and conditions of the MSPP and the Plan, copies of which the Grantee acknowledges having received, including the powers of the Committee set forth in Section 2(b) of the Plan. Capitalized terms in this Award Agreement shall have the meaning specified in the MSPP and the Plan, unless a different meaning is specified herein.

7.          Transferability. This Award Agreement is personal to the Grantee, is non-assignable and is not transferable in any manner, by operation of law or otherwise, other than by will or the laws of descent and distribution.

8.          Tax Withholding. Notwithstanding any provision of any applicable award agreement between the Company and the Grantee, and except as expressly elected by the Grantee, the Grantee’s required minimum tax withholding obligation shall be satisfied as follows: With respect to any Award of Restricted Stock, the Grantee shall transfer to the Company such number of shares of Common Stock of the Company with an aggregate Fair Market Value that would satisfy the withholding amount due, in each case, not later than the day as of which the applicable award becomes a taxable event for Federal income tax purposes.

9.          Data Privacy Consent. In order to administer the Plan and this Agreement and to implement or structure future equity grants, the Company, its subsidiaries and affiliates and certain agents thereof (together, the “Relevant Companies”) may process any and all personal or professional data, including but not limited to Social Security or other identification number, home address and telephone number, date of birth and other information that is necessary or desirable for the administration of the Plan and/or this Agreement (the “Relevant Information”). By entering into this Agreement, the Grantee (i) authorizes the Company to collect, process, register and transfer to the Relevant Companies all Relevant Information; (ii) waives any privacy rights the Grantee may have with respect to the Relevant Information; (iii) authorizes the Relevant Companies to store and transmit such information in electronic form; and (iv) authorizes the transfer of the Relevant Information to any jurisdiction in which the Relevant Companies consider appropriate. The Grantee shall have access to, and the right to change, the Relevant Information. Relevant Information will only be used in accordance with applicable law.

10.    Miscellaneous.

(a)          This Award Agreement and the Plan contain the entire agreement of the parties relating to the subject matter hereof and supersede any prior agreements or understandings with respect thereto.

(b)          Notice hereunder shall be given to the Company at its principal place of business, and shall be given to the Grantee at the address set forth below, or in either case at such other address as one party may subsequently furnish to the other party in writing.

(c)          This Award Agreement does not confer upon the Grantee any rights with respect to continuation of employment by the Company or any Subsidiary or with respect to any future Awards.

CAMDEN NATIONAL CORPORATION

By:

The foregoing Award Agreement is hereby accepted and the terms and conditions thereof hereby agreed to by the undersigned.

Dated:
	Grantee’s Signature
	Grantee’s name and address:
	NAME:
	ADDRESS:

EX-10.2

RESTRICTED STOCK UNIT AWARD AGREEMENT

FOR COMPANY EMPLOYEES

UNDER the Camden National corporation

2012 Equity AND INCENTIVE PLAN

Name of Grantee:            GRANTEE NAME

No. of Restricted Stock Units:    # UNITS

Grant Date:            GRANT DATE

Pursuant to the Camden National Corporation 2012 Equity and Incentive Plan as amended through the date hereof (the “Plan”), Camden National Corporation (the “Company”) hereby grants an award of the number of Restricted Stock Units listed above (an “Award”) to the Grantee named above. Each Restricted Stock Unit shall relate to one share of Common Stock, no par value per share (the “Stock”) of the Company.

1.Restrictions on Transfer of Award. This Award may not be sold, transferred, pledged, assigned or otherwise encumbered or disposed of by the Grantee, and any shares of Stock issuable with respect to the Award may not be sold, transferred, pledged, assigned or otherwise encumbered or disposed of until (i) the Restricted Stock Units have vested as provided in Paragraph 2 of this Agreement and (ii) shares of Stock have been issued to the Grantee in accordance with the terms of the Plan and this Agreement.

2.Vesting of Restricted Stock Units. The restrictions and conditions of Paragraph 1 of this Agreement shall lapse on the Vesting Date or Dates specified in the following schedule so long as the Grantee remains an employee of the Company or a Subsidiary on such Dates. If a series of Vesting Dates is specified, then the restrictions and conditions in Paragraph 1 shall lapse only with respect to the incremental number of Restricted Stock Units specified as vested on such date.

Incremental Number (Cumulative Number) of Restricted Stock Units Vested	Vesting Date
()
()
()
()
()

The Committee may at any time accelerate the vesting schedule specified in this Paragraph 2.

3.Termination of Employment. If the Grantee’s employment with the Company and its Subsidiaries terminates for any reason (including death or disability) prior to the satisfaction of the vesting conditions set forth in Paragraph 2 above, any Restricted Stock Units that have not vested as of such date shall automatically and without notice terminate and be forfeited, and neither the Grantee nor any of his or her successors, heirs, assigns, or personal representatives will thereafter have any further rights or interests in such unvested Restricted Stock Units.

4.Issuance of Shares of Stock. As soon as practicable following each Vesting Date (but in no event later than two and one-half months after the end of the year in which the Vesting Date occurs), the Company shall issue to the Grantee the number of shares of Stock equal to the aggregate number of Restricted Stock Units that have vested pursuant to Paragraph 2 of this Agreement on such date and the Grantee shall thereafter have all the rights of a shareholder of the Company with respect to such shares.

5.Incorporation of Plan. Notwithstanding anything herein to the contrary, this Agreement shall be subject to and governed by all the terms and conditions of the Plan, a copy of which the Grantee acknowledges having received, including the powers of the Committee set forth in Section 2(b) of the Plan. Capitalized terms in this Agreement shall have the meaning specified in the Plan, unless a different meaning is specified herein.

6.Tax Withholding. The Grantee shall, no later than the date as of which the value of the Award first becomes includable in the gross income of the Grantee for Federal income tax purposes, pay to the Company, or make arrangements

satisfactory to the Committee regarding payment of, any Federal, state, or local taxes of any kind required by law to be withheld by the Company with respect to such income. Unless otherwise elected by the Grantee and approved by the Committee, subject to the Company’s insider trading policy, as in effect from time to time, the Company’s minimum required tax withholding obligation shall be satisfied in full by the Company withholding from the vested Award a number of shares with an aggregate Fair Market Value (as of the date the withholding is effected) that would satisfy the withholding amount due.

7.Section 409A of the Code. This Agreement shall be interpreted in such a manner that all provisions relating to the settlement of the Award are exempt from the requirements of Section 409A of the Code as “short-term deferrals” as described in Section 409A of the Code.

8.Data Privacy Consent. In order to administer the Plan and this Agreement and to implement or structure future equity grants, the Company, its subsidiaries and affiliates and certain agents thereof (together, the “Relevant Companies”) may process any and all personal or professional data, including but not limited to Social Security or other identification number, home address and telephone number, date of birth and other information that is necessary or desirable for the administration of the Plan and/or this Agreement (the “Relevant Information”). By entering into this Agreement, the Grantee (i) authorizes the Company to collect, process, register and transfer to the Relevant Companies all Relevant Information; (ii) waives any privacy rights the Grantee may have with respect to the Relevant Information; (iii) authorizes the Relevant Companies to store and transmit such information in electronic form; and (iv) authorizes the transfer of the Relevant Information to any jurisdiction in which the Relevant Companies consider appropriate. The Grantee shall have access to, and the right to change, the Relevant Information. Relevant Information will only be used in accordance with applicable law.

9.Miscellaneous.

(a)This Agreement and the Plan contain the entire agreement of the parties relating to the subject matter hereof and supersede any prior agreements or understandings with respect thereto.

(b)Notices hereunder shall be given to the Company at its principal place of business and shall be given to the Grantee at the address set forth below, or, in either case, at such other address as one party may subsequently furnish to the other party in writing.

(c)This Agreement does not confer upon the Grantee any rights with respect to continuation of employment by the Company or any Subsidiary.

CAMDEN NATIONAL CORPORATION
By:
	Title:

The foregoing Award Agreement is hereby accepted and the terms and conditions thereof hereby agreed to by the undersigned.

Dated:
	Grantee’s Signature
	Grantee’s name and address:
	NAME:
	ADDRESS:

EX-10.3

 RESTRICTED STOCK AWARD AGREEMENT

UNDER THE CAMDEN NATIONAL CORPORATION

2012 EQUITY AND INCENTIVE PLAN

Name of Grantee:

No. of Shares:

Grant Date:

Pursuant to the Camden National Corporation 2012 Equity and Incentive Plan, as amended through the date hereof (the “Plan”), Camden National Corporation (the “Company”) hereby grants a Restricted Stock Award (an “Award”) to the Grantee named above. Upon acceptance of this Award, the Grantee shall receive the number of shares of Common Stock, no par value per share (the “Restricted Stock”) of the Company specified above, subject to the restrictions and conditions set forth herein and in the Plan. 

1.          Acceptance of Award. The Grantee shall have no rights with respect to this Award unless he or she shall have accepted this Award by signing and delivering to the Company a copy of this Award Agreement. Thereupon, the shares of Restricted Stock shall be issued in the name of the Grantee and the Grantee’s name shall be entered as the stockholder of record on the books of the Company. The Grantee shall have all the rights of a shareholder with respect to such Restricted Stock, subject, however, to the restrictions and conditions set forth in this Award Agreement and in the Plan. 

2.          Certificates, Legend, Etc. Upon acceptance of this Award by the Grantee, certificates evidencing the shares of Restricted Stock granted herein shall be issued in the name of the Grantee. Such certificates shall bear an appropriate legend, as determined by the Committee (as defined in Section 2 of the Plan) in its sole discretion, to the effect that such shares of Restricted Stock are subject to restrictions as set forth herein and in the Plan. Unless the Committee otherwise determines, such certificates shall remain in the possession of the Company until the shares are vested as set forth herein and the Grantee shall deliver to the Company a stock power endorsed in blank. 

3.          Voting/Dividends. Upon the issuance of the shares of Restricted Stock hereunder, the Grantee shall have the rights of a stockholder of the Company with respect to voting the shares of Restricted Stock and to be paid currently on all dividends declared and issued in respect of such shares. 

4.          Tender Offers and Merger Elections. The Grantee shall have the right to respond, or to direct the response, with respect to the related shares of Restricted Stock, to any tender offer, exchange offer, cash/stock merger consideration election or other offer made to, or elections made by, the holders of shares of Common Stock of the Company.

 5.          Vesting of Restricted Stock. The restrictions and conditions in this Agreement shall lapse on the Vesting Date or Dates specified in the following schedule. If a series of Vesting Dates is specified, then the restrictions and conditions shall lapse only with respect to the incremental number of shares of Restricted Stock specified as vested on such date.

Incremental Number (Cumulative Number) of Shares of Restricted Stock Vested	Vesting Date
#                     #	DATE
#                     #	DATE
#                     #	DATE

Subsequent to such Vesting Date or Dates, the shares of Common Stock on which all restrictions and conditions have lapsed shall no longer be deemed Restricted Stock. The Committee may at any time accelerate the vesting schedule specified in this Paragraph 6. 

6.          Termination of Service. The Grantee’s rights in any shares of Restricted Stock that have not vested shall, upon the termination of the Grantee’s Service to the Company and any Subsidiary, (i) in the event of termination for Cause, expire

and be forfeited; (ii) in the event of (A) the death or Disability of the Grantee, (B) a Change of Control, or (C) the Retirement of the Grantee provided that the Grantee is at least sixty-five (65) years old and has provided Services to the Company or a Subsidiary for at least five (5) consecutive years, accelerate and become fully vested as of the date of termination of Service; or (iii) in all other cases, terminate upon the grantee’s termination of Service with the Company and its Subsidiaries and such shares shall be subject to a right of repurchase by the Company from the Grantee or his or her legal representative at the original purchase price. The Company must exercise such right of forfeiture by written notice to the Grantee or the Grantee’s legal representative not later than sixty (60) days following such termination of Service. 

7.          Incorporation of Plan. Notwithstanding anything herein to the contrary, this Award Agreement shall be subject to and governed by all the terms and conditions of the Plan, a copy of which the Grantee acknowledges having received, including the powers of the Committee set forth in Section 2(b) of the Plan. Capitalized terms in this Award Agreement shall have the meaning specified in the Plan, unless a different meaning is specified herein. 

8.          Transferability. This Award Agreement is personal to the Grantee, is non-assignable and is not transferable in any manner, by operation of law or otherwise, other than by will or the laws of descent and distribution. 

9.          Tax Withholding. Notwithstanding any provision of any applicable award agreement between the Company and the Grantee, and except as expressly elected by the Grantee, the Grantee’s required minimum tax withholding obligation shall be satisfied as follows: With respect to any Award of Restricted Stock, the Grantee shall transfer to the Company such number of shares of Common Stock of the Company with an aggregate Fair Market Value that would satisfy the withholding amount due, in each case, not later than the day as of which the applicable award becomes a taxable event for Federal income tax purposes. 

10.          Miscellaneous.

 (a)          This Award Agreement and the Plan contain the entire agreement of the parties relating to the subject matter hereof and supersede any prior agreements or understandings with respect thereto.

 (b)          Notice hereunder shall be given to the Company at its principal place of business, and shall be given to the Grantee at the address set forth below, or in either case at such other address as one party may subsequently furnish to the other party in writing.

 (c)          This Award Agreement does not confer upon the Grantee any rights with respect to continuation of employment by the Company or any Subsidiary or with respect to any future Awards.

	CAMDEN NATIONAL CORPORATION
`
	By:
		Title:

The foregoing Award Agreement is hereby accepted and the terms and conditions thereof hereby agreed to by the undersigned.

Dated:
	Grantee’s Signature
	Grantee’s name and address:
	NAME:
	ADDRESS:

EX-10.4

INCENTIVE STOCK OPTION AGREEMENT

UNDER THE CAMDEN NATIONAL CORPORATION

2012 EQUITY AND INCENTIVE PLAN

Name of Optionee:
No. of Option Shares:
Option Exercise Price per Share:	$
Grant Date:
Expiration Date:

Pursuant to the Camden National Corporation 2012 Equity and Incentive Plan, as amended through the date hereof (the “Plan”), Camden National Corporation (the “Company”) hereby grants to the Optionee named above a stock option (the “Stock Option”) to purchase, on or prior to the Expiration Date specified above, all or part of the number of shares of Common Stock, no par value (the “Stock”), of the Company specified above at the Option Exercise Price per share specified above, subject to the terms and conditions set forth herein and in the Plan. 

1.          Exercisability Schedule. No portion of this Stock Option may be exercised until such portion shall have become exercisable. Except as set forth below, and subject to the discretion of the Committee (as defined in Section 2 of the Plan) to accelerate the exercisability schedule hereunder, this Stock Option shall be exercisable with respect to the following number of Option Shares on the dates indicated: 

Incremental (Aggregate) Number of Option Shares Exercisable	Exercisability Date
#                                                   #	DATE
#                                                   #	DATE
#                                                   #	DATE
#                                                   #	DATE
#                                                   #	DATE

 Once exercisable, this Stock Option shall continue to be exercisable at any time or times prior to the close of business on the Expiration Date, subject to the provisions hereof and of the Plan. 

2.          Manner of Exercise. 

(a)          The Optionee may exercise this Stock Option only in the following manner: from time to time on or prior to the Expiration Date of this Stock Option, the Optionee may give written notice to the Committee of his or her election to purchase some or all of the Option Shares purchasable at the time of such notice. This notice shall specify the number of Option Shares to be purchased.  

Unless otherwise elected by the Optionee and approved by the Committee, payment of the purchase price for the Option Shares shall be made by the Optionee delivering to the Company a properly executed exercise notice together with irrevocable instructions to a broker to promptly deliver to the Company cash or a check payable and acceptable to the Company to pay the option purchase price, provided that in the event the Optionee chooses to pay the option purchase price as so provided, the Optionee and the broker shall comply with such procedures and enter into such agreements of indemnity and other agreements as the Committee shall prescribe as a condition of such payment procedure. 

If elected by the Optionee and approved by the Committee, whole or partial payment may be made by one or more of the following methods: (A) in cash, by certified or bank check or other instrument acceptable to the Committee; (B) through the delivery (or attestation to the ownership) of shares of Stock that have been purchased by the Optionee on the open market or

that have been beneficially owned by the Optionee for at least six (6) months and are not then subject to any restrictions under any Company plan. Payment instruments will be received subject to collection. 

The delivery of certificates representing the Option Shares will be contingent upon the Company’s receipt from the Optionee of full payment for the Option Shares, as set forth above and any agreement, statement or other evidence that the Company may require to satisfy itself that the issuance of Stock to be purchased pursuant to the exercise of Stock Option under the Plan and any subsequent resale of the shares of Stock will be in compliance with applicable laws and regulations. In the event the Optionee chooses to pay the purchase price by previously-owned shares of Stock through the attestation method, the number of shares of Stock transferred to the Optionee upon the exercise of the Stock Option shall be net of the shares attested to.

(b)          Certificates for the shares of Stock purchased upon exercise of this Stock Option shall be issued and delivered to the Optionee upon compliance to the satisfaction of the Committee with all requirements under applicable laws or regulations in connection with such issuance and with the requirements hereof and of the Plan. The determination of the Committee as to such compliance shall be final and binding on the Optionee. The Optionee shall not be deemed to be the holder of, or to have any of the rights of a holder with respect to, any shares of Stock subject to this Stock Option unless and until this Stock Option shall have been exercised pursuant to the terms hereof, the Company shall have issued and delivered the shares to the Optionee, and the Optionee’s name shall have been entered as the stockholder of record on the books of the Company. Thereupon, the Optionee shall have full voting, dividend and other ownership rights with respect to such shares of Stock.

(c)          The minimum number of shares with respect to which this Stock Option may be exercised at any one time shall be 100 shares, unless the number of shares with respect to which this Stock Option is being exercised is the total number of shares subject to exercise under this Stock Option at the time.  

(d)          Notwithstanding any other provision hereof or of the Plan, no portion of this Stock Option shall be exercisable after the Expiration Date hereof. 

(3)         Termination of Employment. If the Optionee’s employment by the Company or a Subsidiary (as defined in the Plan) is terminated, the period within which to exercise the Stock Option may be subject to earlier termination as set forth below.

(a)          Termination Due to Death. If the Optionee’s employment terminates by reason of death, any Stock Option held by the Optionee shall become fully exercisable and may thereafter be exercised by the Optionee’s legal representative or legatee for a period of twelve (12) months from the date of death or until the Expiration Date, if earlier. 

(b)          Termination Due to Disability. If the Optionee’s employment terminates by reason of Disability (as defined in the Plan), any Stock Option held by the Optionee shall become fully exercisable and may thereafter be exercised by the Optionee for a period of twelve (12) months from the date of termination or until the Expiration Date, if earlier. The death of the Optionee during the 12-month period provided in this Section 3(b) shall extend such period for another twelve (12) months from the date of death or until the Expiration Date, if earlier. 

(c)          Termination for Cause. If the Optionee’s employment terminates for Cause (as defined in the Plan), any Stock Option held by the Optionee shall terminate immediately and be of no further force and effect. 

(d)          Termination Due to Retirement. If the Optionee’s employment terminates due to Retirement (as defined in the Plan) from the Company, and on the date of Retirement the Optionee is at least sixty-five (65) years old and has been employed by the Company for at least five (5) consecutive years, then any Stock Option held by the Optionee shall become fully exercisable and may thereafter be exercised by the Optionee for a period of twelve (12) months from the date of Retirement or until the Expiration Date, if earlier. 

(e)     Other Termination. If the Optionee’s employment terminates for any reason other than as set forth in subsections (a), (b), (c) and (d) above, and unless otherwise determined by the Committee, any Stock Option held by the Optionee may be exercised, only to the extent immediately exercisable on the date of termination, for a period of three (3) months from the date of termination or until the Expiration Date, if earlier. Any Stock Option that is not exercisable at such time shall terminate immediately and be of no further force or effect. 

The Committee’s determination of the reason for termination of the Optionee’s employment shall be conclusive and binding on the Optionee and his or her representatives or legatees.

4.          Incorporation of Plan. Notwithstanding anything herein to the contrary, this Stock Option shall be subject to and governed by all the terms and conditions of the Plan, a copy of which the Optionee acknowledges having received, including the powers of the Committee set forth in Section 2(b) of the Plan. Capitalized terms in this Agreement shall have the meaning specified in the Plan, unless a different meaning is specified herein.  

5.           Transferability. This Agreement is personal to the Optionee, is non-assignable and is not transferable in any manner, by operation of law or otherwise, other than by will or the laws of descent and distribution. This Stock Option is exercisable, during the Optionee’s lifetime, only by the Optionee, and thereafter, only by the Optionee’s legal representative or legatee. 

6.           Status of the Stock Option. This Stock Option is intended to qualify as an “incentive stock option” under Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”), but the Company does not represent or warrant that this Stock Option qualifies as such. The Optionee should consult with his or her own tax advisors regarding the tax effects of this Stock Option and the requirements necessary to obtain favorable income tax treatment under Section 422 of the Code, including, but not limited to, holding period requirements. If the Optionee intends to dispose or does dispose (whether by sale, gift, transfer or otherwise) of any Option Shares within the one-year period beginning on the date after the transfer of such shares to him or her, or within the two-year period beginning on the day after the grant of this Stock Option, he or she will notify the Company within thirty (30) days after such disposition. 

7.           Tax Withholding.

(a)          Payment in Stock. Unless otherwise elected by the grantee and approved by the Committee, subject to the Company’s insider trading policy, as in effect from time to time, the minimum required tax withholding obligation shall be satisfied in full by the grantee authorizing the Company to withhold from shares of Stock to be issued pursuant to any Award a number of shares with an aggregate Fair Market Value (as of the date the withholding is effected) that would satisfy the withholding amount due.

(b)          Payment by Grantee. If the grantee elects and the Committee approves a form of payment other that provided in Section 13(a), above, each grantee shall, no later than the date as of which the value of an Award or of any Stock or other amounts received thereunder first becomes includable in the gross income of the grantee for Federal income tax purposes, pay to the Company, or make arrangements satisfactory to the Committee regarding payment of, any Federal, state, or local taxes of any kind required by law to be withheld with respect to such income. Such arrangements may include payment, in whole or in part by the grantee transferring to the Company shares of Stock owned by the grantee with an aggregate Fair Market Value (as of the date the withholding is effected) that would satisfy the withholding amount due. The Company and its Subsidiaries shall, to the extent permitted by law, have the right to deduct any such taxes from any payment of any kind otherwise due to the grantee. The Company’s obligation to deliver stock certificates to any grantee is subject to and conditioned on tax obligations being satisfied by the grantee.  

8.           Miscellaneous. 

(a)          This Option Award and the Plan contain the entire agreement of the parties relating to the subject matter hereof and supersede any prior agreements or understandings with respect hereto. 

(b)          Notice hereunder shall be given to the Company at its principal place of business, and shall be given to the Optionee at the address set forth below, or in either case at such other address as one party may subsequently furnish to the other party in writing. 

(c)          This Stock Option does not confer upon the Optionee any rights with respect to continuance of employment by the Company or any Subsidiary or with respect to any future Awards.

CAMDEN NATIONAL CORPORATION

By:

Title:

The foregoing Agreement is hereby accepted and the terms and conditions thereof hereby agreed to by the undersigned.

Dated:
	Optionee’s Signature
	Optionee’s name and address:
	NAME
	ADDRESS

EX-31.1

Exhibit #31.1

CERTIFICATION

I, Gregory A. Dufour, certify that:

I have reviewed this quarterly report on Form 10-Q 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 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 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: May 4, 2018

/s/ Gregory A. Dufour

Gregory A. Dufour

President and Chief Executive Officer

EX-31.2

Exhibit #31.2

CERTIFICATION

I, Deborah A. Jordan, certify that: 

I have reviewed this quarterly report on Form 10-Q 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 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 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: May 4, 2018

/s/ Deborah A. Jordan

Deborah A. Jordan

Chief Operating Officer, Chief Financial Officer and

Principal Financial & Accounting Officer

EX-32.1

Exhibit #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 quarterly report on Form 10-Q for the period ended March 31, 2018 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 this 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.

/s/ Gregory A. Dufour	May 4, 2018
Gregory A. Dufour	Date
President and Chief Executive Officer

EX-32.2

Exhibit #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 quarterly report on Form 10-Q for the period ended March 31, 2018 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 this 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.

/s/ Deborah A. Jordan	May 4, 2018
Deborah A. Jordan	Date
Chief Operating Officer, Chief Financial Officer and
Principal Financial & Accounting Officer

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 27, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
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		15,566,603

XML

CONSOLIDATED STATEMENTS OF CONDITION (CURRENT PERIOD UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 48,159	$ 44,057
Interest-bearing deposits in other banks	76,950	58,914
Cash	125,109	102,971
Investments:
Available-for-sale securities, at fair value	796,687	789,899
Held-to-maturity securities, at amortized cost (fair value of $91.9 million and $94.9 million, respectively)	93,192	94,073
Other investments	23,774	23,670
Total investments	913,653	907,642
Loans held for sale, at fair value	9,548	8,103
Loans	2,789,148	2,782,439
Less: allowance for loan losses	(22,990)	(24,171)
Net loans	2,766,158	2,758,268
Goodwill	94,697	94,697
Other intangible assets	4,774	4,955
Bank-owned life insurance	88,097	87,489
Premises and equipment, net	41,545	41,891
Deferred tax assets	23,181	22,776
Other assets	46,423	36,606
Total assets	4,113,185	4,065,398
Deposits:
Demand	463,496	478,643
Interest checking	840,054	855,570
Savings and money market	1,005,329	985,508
Certificates of deposit	471,155	475,010
Brokered deposits	245,546	205,760
Total deposits	3,025,580	3,000,491
Short-term borrowings	552,624	541,796
Long-term borrowings	10,773	10,791
Subordinated debentures	58,950	58,911
Accrued interest and other liabilities	61,203	49,996
Total liabilities	3,709,130	3,661,985
Commitments and Contingencies
Shareholders’ Equity
Common stock, no par value: authorized 40,000,000 shares, issued and outstanding 15,565,868 and 15,524,704 on March 31, 2018 and December 31, 2017, respectively	156,860	156,904
Retained earnings	275,841	266,723
Accumulated other comprehensive loss:
Net unrealized losses on available-for-sale debt securities, net of tax	(20,227)	(10,300)
Net unrealized losses on cash flow hedging derivative instruments, net of tax	(4,547)	(5,926)
Net unrecognized losses on postretirement plans, net of tax	(3,872)	(3,988)
Total accumulated other comprehensive loss	(28,646)	(20,214)
Total shareholders’ equity	404,055	403,413
Total liabilities and shareholders’ equity	$ 4,113,185	$ 4,065,398

XML

CONSOLIDATED STATEMENTS OF CONDITION (CURRENT PERIOD UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Held-to-maturity Securities, Fair Value	$ 91,874	$ 94,913
Common stock, no par value (dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	40,000,000	40,000,000
Common stock, issued (in shares)	15,565,868	15,524,704
Common stock, outstanding (in shares)	15,565,868	15,524,704

XML

CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Interest Income
Interest and fees on loans	$ 29,834	$ 27,062
Interest on U.S. government and sponsored enterprise obligations (taxable)	4,225	4,256
Interest on state and political subdivision obligations (nontaxable)	672	702
Interest on deposits in other banks and other investments	547	394
Total interest income	35,278	32,414
Interest Expense
Interest on deposits	3,749	2,554
Interest on borrowings	1,780	1,161
Interest on subordinated debentures	847	844
Total interest expense	6,376	4,559
Net interest income	28,902	27,855
(Credit) provision for credit losses	(497)	579
Net interest income after (credit) provision for credit losses	29,399	27,276
Non-Interest Income
Service charges on deposit accounts	1,836	1,823
Mortgage banking income, net	1,391	1,553
Debit card income	1,929	1,834
Income from fiduciary services	1,283	1,247
Bank-owned life insurance	608	577
Brokerage and insurance commissions	650	453
Other service charges and fees	462	468
Other income	645	617
Total non-interest income	8,804	8,572
Non-Interest Expense
Salaries and employee benefits	12,562	11,933
Furniture, equipment and data processing	2,586	2,325
Net occupancy costs	1,873	1,946
Consulting and professional fees	804	845
Debit card expense	730	660
Regulatory assessments	499	545
Amortization of intangible assets	181	472
Other real estate owned and collection costs (recoveries), net	75	(44)
Other expenses	2,994	2,746
Total non-interest expense	22,304	21,428
Income before income tax expense	15,899	14,420
Income tax expense	3,079	4,344
Net Income	$ 12,820	$ 10,076
Per Share Data
Basic earnings per share (in dollars per share)	$ 0.82	$ 0.65
Diluted earnings per share (in dollars per share)	$ 0.82	$ 0.64
Weighted average number of common shares outstanding (in shares)	15,541,975	15,488,848
Diluted weighted average number of common shares outstanding (in shares)	15,603,380	15,568,639
Dividends, Common Stock, Cash	$ 0.25	$ 0.23

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Income		$ 12,820	$ 10,076
Net change in unrealized gains (losses) on available-for-sale securities:
Net change in unrealized losses on available-for-sale securities, net of tax of $2,666 and $247, respectively		(9,729)	(458)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract]
Net change in unrealized losses on cash flow hedging derivatives, net of tax of ($355) and ($48) respectively		1,328	90
Net reclassification adjustment for effective portion of cash flow hedges, net of tax of ($13) and ($159), respectively(1)	[1]	51	296
Net change in unrealized losses on cash flow hedging derivatives, net of tax		1,379	386
Reclassification of amortization of net unrecognized actuarial loss and prior service cost, net of tax of ($31) and ($23), respectively(2)	[2]	116	43
Other comprehensive loss		(8,234)	(29)
Comprehensive Income		$ 4,586	$ 10,047

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

[2] (2) Reclassified into the consolidated statements of income within salaries and employee benefits and other expenses.

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net change in unrealized gains on available-for-sale securities, tax effect	$ 2,666	$ 247
Net change in unrealized gains (losses) on cash flow hedging derivatives, tax effect	355	48
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, tax effect	(13)	(159)
Reclassification of amortization of prior service cost included in net periodic cost, tax effect	$ (31)	$ (23)

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2016		15,476,379
Beginning Balance at Dec. 31, 2016	$ 391,547	$ 156,041	$ 249,415	$ (13,909)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	10,076		10,076
Other comprehensive income, net of tax	(29)			(29)
Stock-based compensation expense	366	$ 366
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit (shares)		31,646
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings	(552)	$ (552)
Cash dividends declared ($0.23 and $0.25 per share	(3,581)		(3,581)
Ending Balance (in shares) at Mar. 31, 2017		15,508,025
Ending Balance at Mar. 31, 2017	397,827	$ 155,855	255,910	(13,938)
Beginning Balance (in shares) at Dec. 31, 2017		15,524,704
Beginning Balance at Dec. 31, 2017	403,413	$ 156,904	266,723	(20,214)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	12,820
Other comprehensive income, net of tax	(8,234)			(8,234)
Stock-based compensation expense	431	$ 431
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit (shares)		41,164
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings	(475)	$ (475)
Cash dividends declared ($0.23 and $0.25 per share	(3,900)		(3,900)
Ending Balance (in shares) at Mar. 31, 2018		15,565,868.000
Ending Balance at Mar. 31, 2018	$ 404,055	$ 156,860	275,841	(28,646)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative-effect adjustment (Note 2)			$ 198	$ (198)

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Stockholders' Equity [Abstract]
Cash dividends declared, per share	$ 0.25	$ 0.23

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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Operating Activities
Net Income	$ 12,820	$ 10,076
Adjustments to reconcile net income to net cash provided by operating activities:
(Credit) provision for credit losses	(497)	579	$ 3,035
Depreciation and amortization expense	940	916
Purchase accounting accretion, net	(514)	(748)
Investment securities amortization and accretion, net	763	786
Stock-based compensation expense	431	366
Amortization of intangible assets	181	472
Net increase in other real estate owned valuation allowance and gain on disposition	0	27
Originations of mortgage loans held for sale	(46,641)	(33,629)
Proceeds from the sale of mortgage loans	46,426	44,320
Gain on sale of mortgage loans, net of origination costs	(1,220)	(1,280)
(Increase) decrease in other assets	(2,850)	3,283
Increase (decrease) in other liabilities	7,218	(20)
Net cash provided by operating activities	17,057	25,094
Investing Activities
Proceeds from maturities of held-to-maturity securities	750	0
Proceeds from the sale and maturity of available-for-sale securities	29,531	32,557
Purchase of available-for-sale securities	(50,152)	(77,286)
Net increase in loans	(7,008)	(50,049)
Purchase of Federal Home Loan Bank stock	(2,815)	(2,143)
Proceeds from sale of Federal Home Loan Bank and Federal Reserve Bank stock	3,472	0
Proceeds from the sale of other real estate owned	0	329
Recoveries of previously charged-off loans	122	183
Proceeds from the liquidation of equity investment	205	0
Purchase of premises and equipment	(595)	(264)
Proceeds from the sale of premises and equipment	0	137
Net cash used by investing activities	(26,490)	(96,536)
Financing Activities
Net increase in deposits	25,126	108,736
Net proceeds from (repayments of ) borrowings less than 90 days	10,816	(37,779)
Repayments of wholesale repurchase agreements	0	(5,000)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings	(475)	(552)
Cash dividends paid on common stock	3,896	3,575
Net cash provided by financing activities	31,571	61,830
Net increase (decrease) in cash, cash equivalents and restricted cash	22,138	(9,612)
Cash, cash equivalents, and restricted cash at beginning of period	102,971	87,707	87,707
Cash, cash equivalents and restricted cash at end of period	125,109	78,095	$ 102,971
Supplemental information
Interest paid	6,384	4,549
Income taxes paid	$ 69	$ 57

XML

BASIS OF PRESENTATION

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BASIS OF PRESENTATION

BASIS OF PRESENTATION

The accompanying unaudited consolidated interim financial statements were prepared in accordance with instructions for Form 10-Q and, therefore, do not include all disclosures required by accounting principles generally accepted in the United States of America for complete presentation of financial statements. In the opinion of management, the consolidated financial statements contain all adjustments (consisting only of normal recurring accruals) necessary to present fairly the consolidated statements of condition of Camden National Corporation as of March 31, 2018 and December 31, 2017, the consolidated statements of income for the three months ended March 31, 2018 and 2017, the consolidated statements of comprehensive income for the three months ended March 31, 2018 and 2017, the consolidated statements of changes in shareholders' equity for the three months endedMarch 31, 2018 and 2017, and the consolidated statements of cash flows for the three months endedMarch 31, 2018 and 2017. All significant intercompany transactions and balances are eliminated in consolidation. Certain items from the prior period were reclassified to conform to the current period presentation. The income reported for the three months ended March 31, 2018 is not necessarily indicative of the results that may be expected for the full year. The information in this report should be read in conjunction with the consolidated financial statements and accompanying notes included in the year ended December 31, 2017 Annual Report on Form 10-K.

The acronyms and abbreviations identified below are used throughout this Form 10-Q, including Part I. "Financial Information." The following was provided to aid the reader and provide a reference page when reviewing this section of the Form 10-Q.

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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RECENT ACCOUNTING PRONOUNCEMENTS

3 Months Ended

Mar. 31, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

RECENT ACCOUNTING PRONOUNCEMENTS

RECENT ACCOUNTING PRONOUNCEMENTS

Accounting Standards Adopted

The Company adopted the following new accounting standards in the first quarter of 2018 and such standards have been accounted for and presented within the accompanying consolidated financial statements for the three months ended March 31, 2018 as follows:

ASU 2014-09, Revenue from Contracts with Customers (Topic 606) ("ASU 2014-09") and ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date ("ASU 2015-14"): In May 2014, the FASB issued ASU 2014-09 followed by the issuance of ASU 2015-14 in August 2015, to defer the effective date of ASU 2014-09 by one year. ASU 2014-09 was issued to clarify the principles for recognizing revenue and to develop a common revenue standard. Effective January 1, 2018, the Company adopted ASU 2014-09 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; (iii) income from fiduciary services and (iv) investment program income. Through the Company's assessment, it was determined that there will be no cumulative-effect adjustment to beginning shareholders' equity under the modified-retrospective transition method within the consolidated financial statements as there was no change in revenue recognition upon adoption of ASU 2014-09.

The details of the revenue streams within the scope of ASU 2014-09 are as follows:

• Service charges on deposit accounts: Deposit-related fees, include, but are not limited to, overdraft income, service charge income, and other fees generated by the depositor relationship with the Bank. For each depositor relationship, an agreement and related disclosures outline the terms of the contract between the depositor and the Bank, including the assessment of fees and fee structure for its various products. The contract is day-to-day and can be closed by the customer or the Bank at any time. As such, the Company recognizes revenue at the time of the transaction as the performance obligation has been met.

The Company presents its revenues earned on service charges on deposit accounts within (i) service charges on deposit accounts and (ii) other service charges and fees on the consolidated statements of income.

• Debit card interchange income: The Bank has separate contracts with intermediaries and earns interchange revenue and incurs related expenses on debit card transactions of its deposit customers. Income earned and expenses incurred by the Bank are dependent on its depositors' debit card usage, including depositor spend, transaction type and merchant. The rates earned are determined by the intermediaries. The Company determined that while the contract for which revenues are directly earned is with the intermediary rather than the depositor, that the underlying contract with each depositor is required for the generation of debit card interchange income and it is the depositors' debit card usage that drives the revenues earned and related expenses incurred. The contract with the depositor is day-to-day and can be closed by the customer or the Bank at any time. As such, the Company recognized revenue at the time of the transaction as the performance obligation has been met.

The Company's debit card interchange revenue and related expenses are presented on a gross basis in accordance with ASU 2014-09 as clarified by ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations ("ASU 2016-08"), as it has control of the specified service prior to transfer to the depositor through the extension of credit.

The Bank pays to certain depositors cash rewards for debit card usage to promote usage and increase interchange revenue. As the consideration paid to its depositors is not for any separate or distinct service these costs are accounted for and presented as a reduction of debit card income upon adoption for periods beginning on January 1, 2018. The Company did not revise prior period presentation on its consolidated statements of income as the modified-retrospective transition method was used.

The Company presents its revenues earned on debit card income within debit card income and related expenses on debit card transactions within debit card expense on the consolidated statements of income.

• Fiduciary services income: The Company, through the Bank's wealth management and trust services department, doing business as Camden National Wealth Management, earns fees for its investment management and related services for its clients. Fees earned for its services are largely dependent on assets under management as of the last day of the month and do not contain performance clauses. Should the contract be terminated by either party, fees for services are earned up to the effective date of contract termination. As such, fiduciary services income is earned and recognized daily.

The Company presents its revenues earned on fiduciary services within income from fiduciary services on the consolidated statements of income.

• Investment program income: Under an investment program offered by the Bank, doing business as Camden Financial Consultant (“Program”), its clients are provided access to brokerage, advisory and insurance products offered through an unaffiliated third party, LPL Financial LLC¹ ("LPL Financial"). Certain Bank employees are registered securities representatives and/or registered investment advisor representatives of LPL Financial who operate in such capacity under Camden Financial Consultants to provide clients with brokerage, investment advisory and insurance related services. The Bank receives a portion of the commissions and fees received by LPL Financial from the sale of investment products and investment advisory services in accordance with the terms of the contract between the two parties.

The revenues earned by the Bank are net of administrative expenses and the portion retained by LPL Financial. The Bank does not have control of the specified services provided to its clients under the Program by LPL Financial. Revenues earned from Program-related services are presented on the consolidated statements of income on a net basis in accordance with ASU 2014-09 as clarified by ASU 2016-08.

The Company presents its revenues earned from Program-related services within brokerage and insurance commissions on the consolidated statements of income.

ASU No. 2016-01, Income Statement - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Liabilities ("ASU 2016-01"): In January 2016, the FASB issued ASU 2016-01 to enhance the reporting model for financial instruments to provide the users of financial statements with more useful information for decisions. Effective January 1, 2018, the Company adopted ASU 2016-01 and applied the provisions of the standard within its consolidated financial statements for the three months ended March 31, 2018, which included:

• The Company's equity investments are no longer designated and accounted for as AFS securities, with the change in fair value recognized within AOCI, net of tax. Instead, the change in fair value of equity investments with a readily determinable fair value are to be recognized within net income. For the three months ended March 31, 2018, the Company recognized an unrealized loss of $35,000 for the change in fair value of its equity investments within other income on the Company's consolidated statements of income. The recognition for the change in fair value within net income was applied prospectively, and the Company recorded a cumulative-effect adjustment as of January 1, 2018 for its equity investments to reclassify the unrealized gain, net of tax, of $198,000 previously recognized within AOCI to retained earnings.

• The Company used the "exit price" notion when measuring the fair value of financial instruments for disclosure purposes only. The Company previously used the "entry price" notion for purposes of measuring its loans held for investment for disclosure purposes only. The change in valuation methodology has been applied prospectively as it does not have a material effect on the comparability of the disclosure.

• The Company no longer discloses the method or significant assumptions used to estimate the fair value for its financial instruments measured at amortized cost on its consolidated statements of condition for which fair value is provided for disclosure purposes only.

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1 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.

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"): In March 2017, the FASB issued ASU 2017-07 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. Prior to adoption, the Company presented all components of net periodic benefit costs within the salaries and employee benefits on the Company's consolidated statements of income. Upon adoption, the Company now presents the service cost component of net periodic benefit cost in the salaries and employee benefits line and all other components of net periodic cost within other expenses on its consolidated statements of income. The change in presentation has been applied retrospectively to prior periods represented on the Company's consolidated statements of income using the amounts previously disclosed within its prior year financial statements as a practical expedient.

ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"): In August 2016, the FASB issued ASU 2016-15 to address eight specific cash flow presentation matters within the statement of cash flows and reduce diversity of presentation across companies. Of the eight specific cash flow presentation matters addressed by the standard, it is noted that one matter addressed is of relevance to the Company based on its current and past operations: proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies. The standard states that cash proceeds received from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies, should be classified as cash inflows from investing activities within statement of cash flows.

The Company adopted the standard for financial reporting periods beginning after December 15, 2017 and it has been applied within the accompanying consolidated statement of cash flows using a retrospective transition method.

ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash ("ASU 2016-18"):In November 2017, the FASB issued ASU 2016-18 to reduce the diversity in practice for the classification and presentation of changes in restricted cash on the statement of cash flows. The standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents. As such, the statement of cash flows should consider the changes in amounts generally described as restricted cash or restricted cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown in the statements of cash flows.

The Company adopted the standard for financial reporting periods beginning after December 15, 2017 and it has been applied within the accompanying consolidated statement of cash flows using a retrospective transition method.

Accounting Standards Issued

The following are recently issued accounting pronouncements that have yet to be adopted by the Company:

ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"): In February 2016, the FASB issued ASU 2016-02 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.

ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities ("ASU 2017-08"): In March 2017, the FASB issued ASU 2017-08 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.

ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12"): In August 2017, the FASB issued ASU 2017-12 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.

ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"): In June 2016, the FASB issued ASU 2016-13 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.

Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"): In January 2017, the FASB issued ASU 2017-04 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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EARNINGS PER SHARE

3 Months Ended

Mar. 31, 2018

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:

	Three Months Ended   March 31,
	2018			2017
Net income	$	12,820		$	10,076
Dividends and undistributed earnings allocated to participating securities(1)	(40		)	(45		)
Net income available to common shareholders	$	12,780		$	10,031
Weighted-average common shares outstanding for basic EPS	15,541,975			15,488,848
Dilutive effect of stock-based awards(2)	61,405			79,791
Weighted-average common and potential common shares for diluted EPS	15,603,380			15,568,639
Earnings per common share(1):
Basic EPS	$	0.82		$	0.65
Diluted EPS	$	0.82		$	0.64

(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, vesting of restricted shares and vesting of restricted stock units utilizing the treasury stock method. Not included are the unvested LTIP awards as they have not met the performance criteria for the periods presented.

For the three months ended March 31, 2018 and 2017, there are no anti-dilutive stock based awards that have been excluded from the computation of potential common shares for purposes of calculating diluted EPS as the average market price of the Company's common stock is greater than the exercise prices.

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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INVESTMENTS

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

INVESTMENTS

INVESTMENTS

AFS and HTM Investments

The following table summarizes the amortized cost and estimated fair values of AFS and HTM securities, as of the dates indicated: 

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
March 31, 2018
AFS Investments (carried at fair value):
Obligations of states and political subdivisions	$	5,776	$	55	$	(4	)	$	5,827
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	517,823		490		(15,317		)	502,996
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	293,371		6		(11,098		)	282,279
Subordinated corporate bonds	5,485		119		(19		)	5,585
Total AFS investments	$	822,455	$	670	$	(26,438	)	$	796,687
HTM Investments (carried at amortized cost):
Obligations of states and political subdivisions	$	93,192	$	130	$	(1,448	)	$	91,874
Total HTM investments	$	93,192	$	130	$	(1,448	)	$	91,874
December 31, 2017
AFS Investments (carried at fair value):
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
Equity investments(1)	554		252		—			806
Total AFS investments	$	803,021	$	1,139	$	(14,261	)	$	789,899
HTM Investments (carried at amortized cost):
Obligations of states and political subdivisions	$	94,073	$	1,077	$	(237	)	$	94,913
Total HTM investments	$	94,073	$	1,077	$	(237	)	$	94,913

(1) As of December 31, 2017, equity investments were classified as AFS investments. Effective January 1, 2018, these investments were reclassified to other investments on the consolidated statements of condition as they are no longer eligible to be classified as AFS upon adoption of ASU 2016-01. Refer to Note 2 for further details.

Net unrealized losses on AFS investments at March 31, 2018 included in AOCI amounted to $20.2 million, net of a deferred tax benefit of $5.5 million. Net unrealized losses on AFS investments at December 31, 2017 included in AOCI amounted to $10.3 million, net of a deferred tax benefit of $2.8 million.

For the three months ended March 31, 2018 and 2017, the Company purchased debt investments of $50.1 million and $77.3 million, respectively, all of which were designated as AFS debt investments.

Impaired AFS and HTM Investments:

Management periodically reviews the Company’s AFS and HTM investments 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 on AFS and HTM investments that were in a continuous loss position at March 31, 2018 and December 31, 2017, by length of time that an individual security in each category has 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
March 31, 2018
AFS Investments:
Obligations of states and political subdivisions	$	1,516	$	(4	)	$	—	$	—		$	1,516	$	(4	)
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	236,851		(5,661		)	233,957		(9,656		)	470,808		(15,317		)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	122,669		(2,308		)	154,622		(8,790		)	277,291		(11,098		)
Subordinated corporate bonds	965		(19		)	—		—			965		(19		)
Total AFS investments	$	362,001	$	(7,992	)	$	388,579	$	(18,446	)	$	750,580	$	(26,438	)
HTM Investments:
Obligations of states and political subdivisions	$	62,815	$	(958	)	$	10,225	$	(490	)	$	73,040	$	(1,448	)
Total HTM investments	$	62,815	$	(958	)	$	10,225	$	(490	)	$	73,040	$	(1,448	)
December 31, 2017
AFS Investments:
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 investments	$	324,078	$	(3,089	)	$	398,360	$	(11,172	)	$	722,438	$	(14,261	)
HTM Investments:
Obligations of states and political subdivisions	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
Total HTM investments	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)

At March 31, 2018 and December 31, 2017, the Company held 328 and 209 debt investments classified as AFS and HTM with a fair value of $823.6 million and $741.2 million that were in an unrealized loss position totaling $27.9 million and $14.5 million, respectively, that were considered temporary. Of these, MBS and CMOs with a fair value of $388.6 million and $398.4 million were in an unrealized loss position, and have been in an unrealized loss position for 12 months or more, totaling $18.4 million and $11.2 million at March 31, 2018 and December 31, 2017, respectively. The unrealized loss was reflective of current interest rates in excess of the yield received on debt investments and is not indicative of an overall change in credit quality or other factors with the Company's AFS and HTM investment portfolio. At March 31, 2018 and December 31, 2017, gross unrealized losses on the Company's AFS and HTM investments were 3.0% and 2.0%, respectively, of its respective fair value.

The Company has the intent and ability to retain its debt investments in an unrealized loss position at March 31, 2018 until the decline in value has recovered.

Sale of AFS Investments:

For the three months ended March 31, 2018 and 2017, the Company did not sell any AFS investments.

AFS and HTM Investments Pledged:

At March 31, 2018 and December 31, 2017, AFS and HTM investments with an amortized cost of $684.3 million and $702.5 million and estimated fair values of $661.9 million and $691.2 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 the Company's AFS and HTM investments by contractual maturity at March 31, 2018, 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 Investments
Due in one year or less	$	5,307	$	5,302
Due after one year through five years	112,412		110,253
Due after five years through ten years	213,112		206,368
Due after ten years	491,624		474,764
	$	822,455	$	796,687
HTM Investments
Due in one year or less	$	1,418	$	1,418
Due after one year through five years	3,783		3,796
Due after five years through ten years	13,035		12,954
Due after ten years	74,956		73,706
	$	93,192	$	91,874

Other Investments

The following table summarizes the cost and estimated fair values of the Company's investment in equity securities, FHLBB stock and FRBB stock as presented within other investments on the consolidated statements of condition, as of the dates indicated: 

	Cost		Unrealized Gains		Unrealized Losses		Fair Value
March 31, 2018
Equity securities - bank stock (carried at fair value)(1)	$	544	$	217	$	—	$	761
FHLBB (carried at cost)	17,639		—		—		17,639
FRB (carried at cost)	5,374		—		—		5,374
Total other investments	$	23,557	$	217	$	—	$	23,774
December 31, 2017
FHLBB (carried at cost)	$	18,296	$	—	$	—	$	18,296
FRB (carried at cost)	5,374		—		—		5,374
Total other investments	$	23,670	$	—	$	—	$	23,670

(1) Effective January 1, 2018, these investments were reclassified to other investments on the consolidated statements of condition as they are no longer eligible for AFS classification upon adoption of ASU 2016-01. Refer to Note 2 for further details.

For thethree months ended March 31, 2018, the Company recognized an unrealized loss of $35,000 due to the change in fair value of its bank stock equity securities, and has been presented within other income on the consolidated statements of income. In addition, the Company's investment in a reinsurance program liquidated during the three months ended March 31, 2018, and a gain of $195,000 was recognized within other income on the Company's 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. For the three months ended March 31, 2018 and 2017, the Company did not record any other-than-temporary impairment on its FHLBB and FRB stock.

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LOANS AND ALLOWANCE FOR LOAN LOSSES

3 Months Ended

Mar. 31, 2018

Loans and Leases Receivable Disclosure [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 March 31, 2018 and December 31, 2017 was as follows:   

	March 31, 2018		December 31, 2017
Residential real estate	$	860,533	$	858,369
Commercial real estate	1,169,533		1,164,023
Commercial	378,015		373,400
Home equity	320,642		323,378
Consumer	18,011		18,149
HPFC	42,414		45,120
Total loans	$	2,789,148	$	2,782,439

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:

	March 31, 2018			December 31, 2017
Net unamortized fair value mark discount on acquired loans	$	5,703		$	6,207
Net unamortized loan origination costs	(958		)	(963		)
Total	$	4,745		$	5,244

The Bank’s lending activities are primarily conducted in Maine, but also include a mortgage loan production office in Massachusetts and two commercial loan production offices 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 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.

There were no significant changes in the Company's ALL methodology during the three months ended March 31, 2018.

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.

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 & equipment, 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 presents the activity in the ALL and select loan information by portfolio segment for the three months ended March 31, 2018 and 2017, and for the year ended December 31, 2017: 

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Three Months Ended March 31, 2018
ALL for the three months ended:
Beginning balance	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	24,171
Loans charged off	(31		)	(426		)	(171		)	(149		)	(26		)	—			(803		)
Recoveries	—			13			63			43			3			—			122
Provision (credit)(1)	442			(1,164		)	63			166			20			(27		)	(500		)
Ending balance	$	5,497		$	10,286		$	4,126		$	2,427		$	230		$	424		$	22,990
ALL balance attributable to loans:
Individually evaluated for impairment	$	553		$	368		$	—		$	112		$	—		$	—		$	1,033
Collectively evaluated for impairment	4,944			9,918			4,126			2,315			230			424			21,957
Total ending ALL	$	5,497		$	10,286		$	4,126		$	2,427		$	230		$	424		$	22,990
Loans:
Individually evaluated for impairment	$	5,059		$	3,961		$	1,714		$	491		$	—		$	—		$	11,225
Collectively evaluated for impairment	855,474			1,165,572			376,301			320,151			18,011			42,414			2,777,923
Total ending loans balance	$	860,533		$	1,169,533		$	378,015		$	320,642		$	18,011		$	42,414		$	2,789,148
For The Three Months Ended March 31, 2017
ALL for the three months ended:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans charged off	(5		)	(3		)	(136		)	(1		)	(14		)	—			(159		)
Recoveries	—			103			77			1			2			—			183
Provision (credit)(1)	116			472			119			(87		)	6			(45		)	581
Ending balance	$	4,271		$	12,726		$	3,815		$	2,107		$	175		$	627		$	23,721
ALL balance attributable to loans:
Individually evaluated for impairment	$	485		$	1,100		$	—		$	83		$	—		$	66		$	1,734
Collectively evaluated for impairment	3,786			11,626			3,815			2,024			175			561			21,987
Total ending ALL	$	4,271		$	12,726		$	3,815		$	2,107		$	175		$	627		$	23,721
Loans:
Individually evaluated for impairment	$	4,408		$	13,191		$	1,994		$	430		$	7		$	98		$	20,128
Collectively evaluated for impairment	815,231			1,083,284			331,613			322,396			16,662			55,825			$	2,625,011
Total ending loans balance	$	819,639		$	1,096,475		$	333,607		$	322,826		$	16,669		$	55,923		$	2,645,139

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			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 to 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 ending loans balance	$	858,369		$	1,164,023		$	373,400		$	323,378		$	18,149		$	45,120		$	2,782,439

(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 March 31, 2018 and 2017, and December 31, 2017, the reserve for unfunded commitments was $23,000, $9,000 and $20,000, respectively.

The following reconciles the three months ended March 31, 2018 and 2017, and year ended December 31, 2017 (credit) provision for loan losses to the (credit) provision for credit losses as presented on the consolidated statement of income:

	Three Months Ended   March 31,						Year Ended December 31, 2017
	2018			2017
(Credit) provision for loan losses	$	(500	)	$	581		$	3,026
Change in reserve for unfunded commitments	3			(2		)	9
(Credit) provision for credit losses	$	(497	)	$	579		$	3,035

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 March 31, 2018, the non-residential building operators' industry exposure was 11% of the Company's total loan portfolio and 26% of the total commercial real estate portfolio. There were no other industry exposures exceeding 10% of the Company's total loan portfolio as of March 31, 2018.

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, residential real estate, and HPFC 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 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
March 31, 2018
Pass (Grades 1-6)	$	847,822	$	1,146,947	$	361,377	$	—	$	—	$	40,768	$	2,396,914
Performing	—		—		—		319,178		18,011		—		337,189
Special Mention (Grade 7)	662		8,510		12,437		—		—		174		21,783
Substandard (Grade 8)	12,049		14,076		4,201		—		—		1,472		31,798
Non-performing	—		—		—		1,464		—		—		1,464
Total	$	860,533	$	1,169,533	$	378,015	$	320,642	$	18,011	$	42,414	$	2,789,148
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

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 may 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
March 31, 2018
Residential real estate	$	2,969	$	533	$	4,762	$	8,264	$	852,269	$	860,533	$	—	$	6,185
Commercial real estate	1,455		72		4,167		5,694		1,163,839		1,169,533		—		4,603
Commercial	144		103		1,532		1,779		376,236		378,015		—		1,991
Home equity	1,121		101		1,083		2,305		318,337		320,642		—		1,464
Consumer	14		9		—		23		17,988		18,011		—		—
HPFC	109		419		655		1,183		41,231		42,414		—		655
Total	$	5,812	$	1,237	$	12,199	$	19,248	$	2,769,900	$	2,789,148	$	—	$	14,898
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

Interest income that would have been recognized if loans on non-accrual status had been current in accordance with their original terms was $162,000 and $210,000 for the three months ended March 31, 2018 and 2017, 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. TDRs 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 the periods indicated:

	Number of Contracts		Recorded Investment				Specific Reserve
	March 31, 2018	December 31, 2017	March 31, 2018		December 31, 2017		March 31, 2018		December 31, 2017
Residential real estate	24	24	$	3,581	$	3,604	$	410	$	452
Commercial real estate	2	3	354		976		20		16
Commercial	7	7	1,339		1,345		—		—
Home equity	2	2	306		307		—		—
Total	35	36	$	5,580	$	6,232	$	430	$	468

At March 31, 2018, the Company had performing and non-performing TDRs with a recorded investment balance of $4.4 million and $1.2 million, respectively. 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.

The following represents loan modifications that qualify as TDRs that occurred for the three months ended March 31, 2018 and 2017:

	Number of Contracts		Pre-Modification Outstanding Recorded Investment				Post-Modification Outstanding Recorded Investment				Specific Reserve
	2018	2017	2018		2017		2018		2017		2018		2017
Residential real estate:
Maturity concession	—	1	$	—	$	151	$	—	$	151	$	—	$	15
Total	—	1	$	—	$	151	$	—	$	151	$	—	$	15

For the three months endedMarch 31, 2018 and 2017, no loans were modified as TDRs within the previous 12 months for which the borrower subsequently defaulted.

Impaired Loans:

Impaired loans consist of non-accrual loans and TDRs 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 three months ended March 31, 2018 and 2017, and as of and for the year-ended December 31, 2017:

							For the Three Months Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
March 31, 2018:
With an allowance recorded:
Residential real estate	$	3,544	$	3,544	$	553	$	3,745	$	30
Commercial real estate	3,591		3,591		368		4,275		1
Commercial	—		—		—		—		—
Home equity	147		147		112		49		—
Consumer	—		—		—		—		—
HPFC	—		—		—		—		—
Ending balance	7,282		7,282		1,033		8,069		31
Without an allowance recorded:
Residential real estate	1,515		1,791		—		1,350		7
Commercial real estate	370		677		—		637		3
Commercial	1,714		2,923		—		1,740		2
Home equity	344		468		—		396		2
Consumer	—		—		—		—		—
HPFC	—		—		—		—		—
Ending balance	3,943		5,859		—		4,123		14
Total impaired loans	$	11,225	$	13,141	$	1,033	$	12,192	$	45
March 31, 2017:
With an allowance recorded:
Residential real estate	$	3,048	$	3,048	$	485	$	3,025	$	26
Commercial real estate	11,791		11,791		1,100		11,654		—
Commercial	1		1		—		—		—
Home equity	297		297		83		298		—
Consumer	—		—		—		—		—
HPFC	98		98		66		98		—
Ending Balance	15,235		15,235		1,734		15,075		26
Without an allowance recorded:
Residential real estate	1,360		1,740		—		1,292		2
Commercial real estate	1,400		1,707		—		1,704		10
Commercial	1,993		3,167		—		2,024		3
Home equity	133		269		—		139		—
Consumer	7		10		—		7		—
HPFC	—		—		—		—		—
Ending Balance	4,893		6,893		—		5,166		15
Total impaired loans	$	20,128	$	22,128	$	1,734	$	20,241	$	41

							For the Year Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2017:
With an 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 an 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

Loan Sales:

For the three months ended March 31, 2018 and 2017, the Company sold $45.2 million and $43.0 million, respectively, of fixed rate residential mortgage loans on the secondary market that resulted in gains on the sale of loans (net of costs) of $1.2 million and $1.3 million, respectively.

At March 31, 2018 and December 31, 2017, the Company had certain residential mortgage loans with a principal balance of $9.5 million and $8.1 million, respectively, designated as held for sale. The Company has elected the fair value option of accounting for its loans held for sale, and at March 31, 2018 and December 31, 2017, recorded an unrealized gain of $47,000 and $37,000, respectively. For the three months ended March 31, 2018 and 2017, the Company recorded within mortgage banking income, net on its consolidated statements of income the net change in unrealized gains of $9,000 and $254,000, respectively, on its loans held for sale.

The Company has forward delivery commitments with a secondary market investor on each of its loans held for sale at March 31, 2018 and December 31, 2017. The fair value of its forward delivery commitments at March 31, 2018 and December 31, 2017 was $123,000 and $142,000, respectively. For the three months ended March 31, 2018 and 2017, the net unrealized loss 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 $19,000 and $118,000, respectively. Refer to Note 12 for further discussion of the Company's forward delivery commitments.

In-Process Foreclosure Proceedings:

At March 31, 2018 and December 31, 2017, the Company had $2.0 million and $1.9 million, respectively, 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.

FHLB Advances:

FHLB advances are those borrowings from the FHLBB greater than 90 days. FHLB advances 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 March 31, 2018 and December 31, 2017.

Refer to Notes 4 and 10 of the consolidated financial statements for discussion of securities pledged as collateral.

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REGULATORY CAPITAL REQUIREMENTS

3 Months Ended

Mar. 31, 2018

Regulatory Capital Requirements [Abstract]

REGULATORY CAPITAL REQUIREMENTS

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 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 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 the Company and Bank 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 the 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, 2018, the Company and Bank were required to establish a capital conservation buffer of 1.875%, 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 March 31, 2018 and December 31, 2017, and specifically the Bank was "well capitalized" under prompt corrective action provisions for each period. There were no new conditions or events that occurred subsequent to March 31, 2018 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:

	March 31, 2018				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, 2017				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	$	403,941	14.32	%	9.88	%	N/A		$	396,451	14.14	%	9.25	%	N/A
Tier I risk-based capital ratio	365,930		12.98	%	7.88	%	N/A		357,261		12.74	%	7.25	%	N/A
Common equity Tier I risk-based capital ratio	322,930		11.45	%	6.38	%	N/A		316,677		11.30	%	5.75	%	N/A
Tier I leverage capital ratio	365,930		9.23	%	4.00	%	N/A		357,261		9.07	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	375,434	13.31	%	9.88	%	10.00	%	$	369,540	13.18	%	9.25	%	10.00	%
Tier I risk-based capital ratio	352,422		12.49	%	7.88	%	8.00	%	345,350		12.32	%	7.25	%	8.00	%
Common equity Tier I risk-based capital ratio	352,422		12.49	%	6.38	%	6.50	%	345,350		12.32	%	5.75	%	6.50	%
Tier I leverage capital ratio	352,422		8.92	%	4.00	%	5.00	%	345,350		8.80	%	4.00	%	5.00	%

In 2015, the Company issued $15.0 million of subordinated debentures, and in 2006 and 2008, it issued $43.0 million of junior subordinated debentures in connection with the issuance of trust preferred securities. 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 March 31, 2018 and December 31, 2017, $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 March 31, 2018 and December 31, 2017, $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.

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INCOME TAXES

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The Company's effective income tax rate for the three months ended March 31, 2018 and 2017 was as follows:

	Three Months Ended   March 31,
	2018			2017
Income tax expense	$	3,079		$	4,344
Income before income tax expense	$	15,899		$	14,420
Effective tax rate(1)	19.4		%	30.1		%

(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%, effective January 1, 2018.

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EMPLOYEE BENEFIT PLANS

3 Months Ended

Mar. 31, 2018

Compensation and Retirement Disclosure [Abstract]

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANS

The Company sponsors unfunded, non-qualified SERPs for certain officers and provides medical and life insurance to certain eligible retired employees. 

The components of net periodic benefit cost for the periods ended March 31, 2018 and 2017 were as follows:

Supplemental Executive Retirement Plan:

		Three Months Ended   March 31,
Net periodic pension cost	Income Statement Presentation	2018		2017
Service cost	Salaries and employee benefits	$	112	$	84
Interest cost	Other expenses	122		112
Recognized net actuarial loss	Other expenses	140		62
Total		$	374	$	258

Other Postretirement Benefit Plan:

		Three Months Ended   March 31,
Net periodic postretirement benefit cost	Income Statement Presentation	2018	2017
Service cost	Salaries and employee benefits	$12	$13
Interest cost	Other expenses	33	36
Recognized net actuarial loss	Other expenses	13	10
Amortization of prior service credit	Other expenses	(6)	(6)
Total		$52	$53

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BORROWINGS

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

BORROWINGS

BORROWINGS

The following summarizes the Company's short-term and long-term borrowed funds as presented on the consolidated statements of condition at:

	March 31, 2018		December 31, 2017
Short-Term Borrowings (mature within one year):
Customer repurchase agreements	$	256,274	$	244,646
FHLBB borrowings	135,000		250,000
Overnight borrowings	161,350		47,150
Total short-term borrowings	$	552,624	$	541,796
Long-Term Borrowings (maturity greater than one year):
FHLBB borrowings	$	10,000	$	10,000
Capital lease obligation	773		791
Total long-term borrowings	$	10,773	$	10,791

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REPURCHASE AGREEMENTS

3 Months Ended

Mar. 31, 2018

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. Because the securities are treated as collateral and the agreement does not qualify for a full transfer of effective control, the transaction 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 table below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings and types of collateral as of March 31, 2018 and December 31, 2017:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
March 31, 2018
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	1,125	$	—	$	—	$	—	$	1,125
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	90,903		—		—		—		90,903
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	164,246		—		—		—		164,246
Total Customer Repurchase Agreements	256,274		—		—		—		256,274
Total Repurchase Agreements	$	256,274	$	—	$	—	$	—	$	256,274
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	$	244,646	$	—	$	—	$	—	$	244,646

Certain customers held CDs totaling $920,000 with the Bank at March 31, 2018 and December 31, 2017, 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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FAIR VALUE MEASUREMENT AND DISCLOSURE

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENT AND DISCLOSURE

FAIR VALUE MEASUREMENT AND DISCLOSURE

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 eligible financial instruments and other items at fair value. The Company has 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.

Debt Securities:  The fair value of investments in debt 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.

Equity Securities: The fair value of investments in equity 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 March 31, 2018 and December 31, 2017, 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 March 31, 2018 and December 31, 2017, 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)
March 31, 2018
Financial assets:
Loans held for sale	$	9,548	$	—	$	9,548	$	—
AFS investments:
Obligations of states and political subdivisions	5,827		—		5,827		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	502,996		—		502,996		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	282,279		—		282,279		—
Subordinated corporate bonds	5,585		—		5,585		—
Equity securities - bank stock	761		—		761		—
Customer loan swaps	10,707		—		10,707		—
Fixed-rate mortgage interest rate lock commitments	308		—		308		—
Forward delivery commitments	145		—		145		—
FHLBB advance interest rate swaps	85		—		85		—
Financial liabilities:
Junior subordinated debt interest rate swaps	5,877		—		5,877		—
Customer loan swaps	10,707		—		10,707		—
Fixed-rate mortgage interest rate lock commitments	35		—		35		—
Forward delivery commitments	22		—		22		—
December 31, 2017
Financial assets:
Loans held for sale	$	8,103	$	—	$	8,103	$	—
AFS investments:
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 investments	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		—

The Company did not have any transfers between Level 1 and Level 2 of the fair value hierarchy during the three months ended March 31, 2018. 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 market 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. At March 31, 2018 and December 31, 2017, the mortgage servicing assets were not carried at fair value.

Non-Financial Instruments Recorded at Fair Value on a Non-Recurring 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 and other intangible assets. 

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 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 have been no indications or triggering events during for the three months ended March 31, 2018 for which management believes that it is 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, then an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. There were no events or changes in circumstances for the three months ended March 31, 2018 that indicated 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 March 31, 2018 and December 31, 2017:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
March 31, 2018
Financial assets:
Collateral-dependent impaired loans	$	3,600	$	—	$	—	$	3,600
Non-financial assets:
OREO	130		—		—		130
December 31, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,696	$	—	$	—	$	3,696
Non-financial assets:
OREO	130		—		—		130

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a non-recurring basis at March 31, 2018 and December 31, 2017:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
March 31, 2018
Collateral-dependent impaired loans:
Partially charged-off	$	18	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
Specifically reserved	3,582		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 cost	10%	(10%)
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%)

The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the periods indicated:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
March 31, 2018
Financial assets:
HTM securities	$	93,192	$	91,874	$	—	$	91,874	$	—
Residential real estate loans(1)	855,036		842,132		—		—		842,132
Commercial real estate loans(1)	1,159,247		1,119,406		—		—		1,119,406
Commercial loans(1)(2)	415,879		404,925		—		—		404,925
Home equity loans(1)	318,215		311,142		—		—		311,142
Consumer loans(1)	17,781		16,880		—		—		16,880
Servicing assets	972		1,840		—		—		1,840
Financial liabilities:
Time deposits	$	538,957	$	532,244	$	—	$	532,244	$	—
Short-term borrowings	552,624		552,289		—		552,289		—
Long-term borrowings	10,773		10,658		—		10,658		—
Subordinated debentures	58,950		45,588		—		45,588		—
December 31, 2017
Financial assets:
HTM securities	$	94,073	$	94,913	$	—	$	94,913	$	—
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
Financial liabilities:
Time deposits	$	517,032	$	512,483	$	—	$	512,483	$	—
Short-term borrowings	541,796		541,605		—		541,605		—
Long-term borrowings	10,791		10,777		—		10,777		—
Subordinated debentures	58,911		44,333		—		44,333		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

Excluded from the summary are financial instruments measured at fair value on a recurring and nonrecurring basis, as previously described.

The Company considers its financial instruments' current use to be the highest and best use of the instruments.

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COMMITMENTS, CONTINGENCIES AND DERIVATIVES

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS, CONTINGENCIES AND DERIVATIVES

COMMITMENTS, CONTINGENCIESAND DERIVATIVES

Legal Contingencies 

In the normal course of business, the Company and its subsidiary 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 March 31, 2018 and December 31, 2017, the Company did not have any material loss contingencies for which accruals were provided for and/or disclosure was deemed 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:

	March 31, 2018		December 31,   2017
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	501,127	$	477,401
Residential	36,352		41,368
Commercial and commercial real estate	31,667		49,482
Letters of credit	3,426		2,848
Other commitments	1,151		523
Derivative Financial Instruments:
Customer loan swaps	$	708,316	$	703,336
Junior subordinated debt interest rate swaps	43,000		43,000
FHLBB advance interest rate swaps	25,000		50,000
Interest rate lock commitments	24,753		21,746
Forward delivery commitments	9,502		8,065

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 effort" 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 AOCI, net of tax. Quarterly, in conjunction with financial reporting, the Company assesses each cash flow hedge for ineffectiveness. To the extent any significant 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 AOCI into interest 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 Company's customer loans swaps with its commercial customers and the corresponding interest rate swap agreements with counterparty for the periods indicated:

		March 31, 2018						December 31, 2017
	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)	63	$	334,395	$	(10,707	)	42	$	226,884	$	(5,036	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	6	19,763		402			23	124,784		1,799
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	69	354,158		10,305			65	351,668		3,237
Total		138	$	708,316	$	—		130	$	703,336	$	—

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 collateral for contracts in a net asset position as requested.

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 March 31, 2018, the Company posted $6.0 million of cash as collateral to the counterparty and was presented within other assets on the consolidated statements of financial condition.

The details of the junior subordinated debt interest rate swaps for the periods indicated were as follows: 

						March 31, 2018		December 31,   2017
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%	$	343	$	527
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	1,695		2,133
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	1,671		2,129
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	4.35%	899		1,137
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	4.14%	1,269		1,645
$	43,000					$	5,877	$	7,571

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

For the three months endedMarch 31, 2018 and 2017, 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 three months endedMarch 31, 2018 and 2017 were $275,000 and $346,000, respectively, and were classified as cash flows from operating activities in the Company's consolidated statements of cash flows.

FHLBB Advance Interest Rate Swaps:

On February 25, 2015, the Bank entered into two$25.0 million one year forward-starting interest rate swap arrangements with a counterparty to mitigate short-term interest rate risk. One contract matured on February 25, 2018 and the other is scheduled 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 three months endedMarch 31, 2018 and 2017, the Company did not record any ineffectiveness 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 Bank (or counterparty) is not readily available and is presented within cash and due from banks on the Company's consolidated statements of condition. At March 31, 2018, the counterparty posted to the Bank $10.4 million of cash as collateral on its FHLBB advance interest rate swap and customer loan swap contracts. The collateral posted by the counterparty to the Bank is not readily available and has been designated as restricted cash and was presented within total cash, cash equivalents and restricted cash on the consolidated statements of condition.

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

						March 31, 2018		December 31,   2017
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)		Fair Value(1)
$	25,000	2/25/2015	2/25/2018	1-Month USD LIBOR	1.54%	$	—	$	20
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	85		1
						$	85	$	21

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

Net payments to the counterparty for the three months endedMarch 31, 2018 and 2017 were $9,000 and $109,000, respectively, and were classified as cash flows from operating activities in the consolidated statements of cash flows.

Interest Rate Locks Commitments:

As part of the origination process of a residential loan, the Company may enter into rate lock agreements with its borrower, which is considered an 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. The Company's pipeline of mortgage loans with fixed-rate interest rate lock commitments for which the Company intends to sell the loan upon origination were as follows for the periods indicated:

		March 31, 2018					December 31, 2017
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other Assets	$	20,374	$	308		$	19,886	$	307
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	4,379		(35		)	1,860		(22		)
Total		$	24,753	$	273		$	21,746	$	285

For the three months ended March 31, 2018 and 2017, the net unrealized loss from the change in fair value on the Company's fixed-rate mortgage rate locks reported within mortgage banking income, net, on the consolidated statements of income were $12,000 for each period.

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 is to typically 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:

		March 31, 2018					December 31, 2017
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best effort")	Other Assets	$	8,155	$	145		$	6,692	$	158
Forward delivery commitments ("best effort")	Accrued interest and other liabilities	1,347		(22		)	1,373		(16		)
Total		$	9,502	$	123		$	8,065	$	142

For the three months ended March 31, 2018 and 2017, the net unrealized loss 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 $19,000 and $118,000, 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 Three Months Ended March 31
	2018		2017
Derivatives designated as cash flow hedges:
Effective portion of unrealized gains recognized within AOCI during the period, net of tax	$	1,328	$	90
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	64	$	455

(1) Reclassified into the consolidated statements of income within interest expense.

The Company expects approximately $693,000 (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 March 31, 2018.

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EARNINGS PER SHARE (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Analysis 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:

	Three Months Ended   March 31,
	2018			2017
Net income	$	12,820		$	10,076
Dividends and undistributed earnings allocated to participating securities(1)	(40		)	(45		)
Net income available to common shareholders	$	12,780		$	10,031
Weighted-average common shares outstanding for basic EPS	15,541,975			15,488,848
Dilutive effect of stock-based awards(2)	61,405			79,791
Weighted-average common and potential common shares for diluted EPS	15,603,380			15,568,639
Earnings per common share(1):
Basic EPS	$	0.82		$	0.65
Diluted EPS	$	0.82		$	0.64

(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, vesting of restricted shares and vesting of restricted stock units utilizing the treasury stock method. Not included are the unvested LTIP awards as they have not met the performance criteria for the periods presented.

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INVESTMENTS (Tables)

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Summary of Amortized Costs and Estimated Fair Values of Available-For-Sale Securities

The following table summarizes the amortized cost and estimated fair values of AFS and HTM securities, as of the dates indicated: 

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
March 31, 2018
AFS Investments (carried at fair value):
Obligations of states and political subdivisions	$	5,776	$	55	$	(4	)	$	5,827
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	517,823		490		(15,317		)	502,996
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	293,371		6		(11,098		)	282,279
Subordinated corporate bonds	5,485		119		(19		)	5,585
Total AFS investments	$	822,455	$	670	$	(26,438	)	$	796,687
HTM Investments (carried at amortized cost):
Obligations of states and political subdivisions	$	93,192	$	130	$	(1,448	)	$	91,874
Total HTM investments	$	93,192	$	130	$	(1,448	)	$	91,874
December 31, 2017
AFS Investments (carried at fair value):
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
Equity investments(1)	554		252		—			806
Total AFS investments	$	803,021	$	1,139	$	(14,261	)	$	789,899
HTM Investments (carried at amortized cost):
Obligations of states and political subdivisions	$	94,073	$	1,077	$	(237	)	$	94,913
Total HTM investments	$	94,073	$	1,077	$	(237	)	$	94,913

The following table summarizes the cost and estimated fair values of the Company's investment in equity securities, FHLBB stock and FRBB stock as presented within other investments on the consolidated statements of condition, as of the dates indicated: 

	Cost		Unrealized Gains		Unrealized Losses		Fair Value
March 31, 2018
Equity securities - bank stock (carried at fair value)(1)	$	544	$	217	$	—	$	761
FHLBB (carried at cost)	17,639		—		—		17,639
FRB (carried at cost)	5,374		—		—		5,374
Total other investments	$	23,557	$	217	$	—	$	23,774
December 31, 2017
FHLBB (carried at cost)	$	18,296	$	—	$	—	$	18,296
FRB (carried at cost)	5,374		—		—		5,374
Total other investments	$	23,670	$	—	$	—	$	23,670

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 on AFS and HTM investments that were in a continuous loss position at March 31, 2018 and December 31, 2017, by length of time that an individual security in each category has 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
March 31, 2018
AFS Investments:
Obligations of states and political subdivisions	$	1,516	$	(4	)	$	—	$	—		$	1,516	$	(4	)
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	236,851		(5,661		)	233,957		(9,656		)	470,808		(15,317		)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	122,669		(2,308		)	154,622		(8,790		)	277,291		(11,098		)
Subordinated corporate bonds	965		(19		)	—		—			965		(19		)
Total AFS investments	$	362,001	$	(7,992	)	$	388,579	$	(18,446	)	$	750,580	$	(26,438	)
HTM Investments:
Obligations of states and political subdivisions	$	62,815	$	(958	)	$	10,225	$	(490	)	$	73,040	$	(1,448	)
Total HTM investments	$	62,815	$	(958	)	$	10,225	$	(490	)	$	73,040	$	(1,448	)
December 31, 2017
AFS Investments:
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 investments	$	324,078	$	(3,089	)	$	398,360	$	(11,172	)	$	722,438	$	(14,261	)
HTM Investments:
Obligations of states and political subdivisions	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)
Total HTM investments	$	9,317	$	(57	)	$	9,436	$	(180	)	$	18,753	$	(237	)

Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity

The amortized cost and estimated fair values of the Company's AFS and HTM investments by contractual maturity at March 31, 2018, 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 Investments
Due in one year or less	$	5,307	$	5,302
Due after one year through five years	112,412		110,253
Due after five years through ten years	213,112		206,368
Due after ten years	491,624		474,764
	$	822,455	$	796,687
HTM Investments
Due in one year or less	$	1,418	$	1,418
Due after one year through five years	3,783		3,796
Due after five years through ten years	13,035		12,954
Due after ten years	74,956		73,706
	$	93,192	$	91,874

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)

3 Months Ended

Mar. 31, 2018

Loans and Leases Receivable Disclosure [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 March 31, 2018 and December 31, 2017 was as follows:   

	March 31, 2018		December 31, 2017
Residential real estate	$	860,533	$	858,369
Commercial real estate	1,169,533		1,164,023
Commercial	378,015		373,400
Home equity	320,642		323,378
Consumer	18,011		18,149
HPFC	42,414		45,120
Total loans	$	2,789,148	$	2,782,439

Schedule of Loan Balances by 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:

	March 31, 2018			December 31, 2017
Net unamortized fair value mark discount on acquired loans	$	5,703		$	6,207
Net unamortized loan origination costs	(958		)	(963		)
Total	$	4,745		$	5,244

Summary of Activity in Allowance for Loan Losses

The following presents the activity in the ALL and select loan information by portfolio segment for the three months ended March 31, 2018 and 2017, and for the year ended December 31, 2017: 

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Three Months Ended March 31, 2018
ALL for the three months ended:
Beginning balance	$	5,086		$	11,863		$	4,171		$	2,367		$	233		$	451		$	24,171
Loans charged off	(31		)	(426		)	(171		)	(149		)	(26		)	—			(803		)
Recoveries	—			13			63			43			3			—			122
Provision (credit)(1)	442			(1,164		)	63			166			20			(27		)	(500		)
Ending balance	$	5,497		$	10,286		$	4,126		$	2,427		$	230		$	424		$	22,990
ALL balance attributable to loans:
Individually evaluated for impairment	$	553		$	368		$	—		$	112		$	—		$	—		$	1,033
Collectively evaluated for impairment	4,944			9,918			4,126			2,315			230			424			21,957
Total ending ALL	$	5,497		$	10,286		$	4,126		$	2,427		$	230		$	424		$	22,990
Loans:
Individually evaluated for impairment	$	5,059		$	3,961		$	1,714		$	491		$	—		$	—		$	11,225
Collectively evaluated for impairment	855,474			1,165,572			376,301			320,151			18,011			42,414			2,777,923
Total ending loans balance	$	860,533		$	1,169,533		$	378,015		$	320,642		$	18,011		$	42,414		$	2,789,148
For The Three Months Ended March 31, 2017
ALL for the three months ended:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans charged off	(5		)	(3		)	(136		)	(1		)	(14		)	—			(159		)
Recoveries	—			103			77			1			2			—			183
Provision (credit)(1)	116			472			119			(87		)	6			(45		)	581
Ending balance	$	4,271		$	12,726		$	3,815		$	2,107		$	175		$	627		$	23,721
ALL balance attributable to loans:
Individually evaluated for impairment	$	485		$	1,100		$	—		$	83		$	—		$	66		$	1,734
Collectively evaluated for impairment	3,786			11,626			3,815			2,024			175			561			21,987
Total ending ALL	$	4,271		$	12,726		$	3,815		$	2,107		$	175		$	627		$	23,721
Loans:
Individually evaluated for impairment	$	4,408		$	13,191		$	1,994		$	430		$	7		$	98		$	20,128
Collectively evaluated for impairment	815,231			1,083,284			331,613			322,396			16,662			55,825			$	2,625,011
Total ending loans balance	$	819,639		$	1,096,475		$	333,607		$	322,826		$	16,669		$	55,923		$	2,645,139

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			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 to 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 ending loans balance	$	858,369		$	1,164,023		$	373,400		$	323,378		$	18,149		$	45,120		$	2,782,439

(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 March 31, 2018 and 2017, and December 31, 2017, the reserve for unfunded commitments was $23,000, $9,000 and $20,000, respectively.

Schedule of Provision for Credit Losses

The following reconciles the three months ended March 31, 2018 and 2017, and year ended December 31, 2017 (credit) provision for loan losses to the (credit) provision for credit losses as presented on the consolidated statement of income:

	Three Months Ended   March 31,						Year Ended December 31, 2017
	2018			2017
(Credit) provision for loan losses	$	(500	)	$	581		$	3,026
Change in reserve for unfunded commitments	3			(2		)	9
(Credit) provision for credit losses	$	(497	)	$	579		$	3,035

Credit Risk Exposure Indicators by Portfolio Segment

The following 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
March 31, 2018
Pass (Grades 1-6)	$	847,822	$	1,146,947	$	361,377	$	—	$	—	$	40,768	$	2,396,914
Performing	—		—		—		319,178		18,011		—		337,189
Special Mention (Grade 7)	662		8,510		12,437		—		—		174		21,783
Substandard (Grade 8)	12,049		14,076		4,201		—		—		1,472		31,798
Non-performing	—		—		—		1,464		—		—		1,464
Total	$	860,533	$	1,169,533	$	378,015	$	320,642	$	18,011	$	42,414	$	2,789,148
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

Loan Aging Analysis by Portfolio Segment

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
March 31, 2018
Residential real estate	$	2,969	$	533	$	4,762	$	8,264	$	852,269	$	860,533	$	—	$	6,185
Commercial real estate	1,455		72		4,167		5,694		1,163,839		1,169,533		—		4,603
Commercial	144		103		1,532		1,779		376,236		378,015		—		1,991
Home equity	1,121		101		1,083		2,305		318,337		320,642		—		1,464
Consumer	14		9		—		23		17,988		18,011		—		—
HPFC	109		419		655		1,183		41,231		42,414		—		655
Total	$	5,812	$	1,237	$	12,199	$	19,248	$	2,769,900	$	2,789,148	$	—	$	14,898
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

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 the periods indicated:

	Number of Contracts		Recorded Investment				Specific Reserve
	March 31, 2018	December 31, 2017	March 31, 2018		December 31, 2017		March 31, 2018		December 31, 2017
Residential real estate	24	24	$	3,581	$	3,604	$	410	$	452
Commercial real estate	2	3	354		976		20		16
Commercial	7	7	1,339		1,345		—		—
Home equity	2	2	306		307		—		—
Total	35	36	$	5,580	$	6,232	$	430	$	468

Schedule of Loan Modifications

The following represents loan modifications that qualify as TDRs that occurred for the three months ended March 31, 2018 and 2017:

	Number of Contracts		Pre-Modification Outstanding Recorded Investment				Post-Modification Outstanding Recorded Investment				Specific Reserve
	2018	2017	2018		2017		2018		2017		2018		2017
Residential real estate:
Maturity concession	—	1	$	—	$	151	$	—	$	151	$	—	$	15
Total	—	1	$	—	$	151	$	—	$	151	$	—	$	15

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 three months ended March 31, 2018 and 2017, and as of and for the year-ended December 31, 2017:

							For the Three Months Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
March 31, 2018:
With an allowance recorded:
Residential real estate	$	3,544	$	3,544	$	553	$	3,745	$	30
Commercial real estate	3,591		3,591		368		4,275		1
Commercial	—		—		—		—		—
Home equity	147		147		112		49		—
Consumer	—		—		—		—		—
HPFC	—		—		—		—		—
Ending balance	7,282		7,282		1,033		8,069		31
Without an allowance recorded:
Residential real estate	1,515		1,791		—		1,350		7
Commercial real estate	370		677		—		637		3
Commercial	1,714		2,923		—		1,740		2
Home equity	344		468		—		396		2
Consumer	—		—		—		—		—
HPFC	—		—		—		—		—
Ending balance	3,943		5,859		—		4,123		14
Total impaired loans	$	11,225	$	13,141	$	1,033	$	12,192	$	45
March 31, 2017:
With an allowance recorded:
Residential real estate	$	3,048	$	3,048	$	485	$	3,025	$	26
Commercial real estate	11,791		11,791		1,100		11,654		—
Commercial	1		1		—		—		—
Home equity	297		297		83		298		—
Consumer	—		—		—		—		—
HPFC	98		98		66		98		—
Ending Balance	15,235		15,235		1,734		15,075		26
Without an allowance recorded:
Residential real estate	1,360		1,740		—		1,292		2
Commercial real estate	1,400		1,707		—		1,704		10
Commercial	1,993		3,167		—		2,024		3
Home equity	133		269		—		139		—
Consumer	7		10		—		7		—
HPFC	—		—		—		—		—
Ending Balance	4,893		6,893		—		5,166		15
Total impaired loans	$	20,128	$	22,128	$	1,734	$	20,241	$	41

							For the Year Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2017:
With an 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 an 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

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REGULATORY CAPITAL REQUIREMENTS (Tables)

3 Months Ended

Mar. 31, 2018

Regulatory Capital Requirements [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The following table presents the Company and Bank's regulatory capital ratios at the periods indicated:

	March 31, 2018				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, 2017				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	$	403,941	14.32	%	9.88	%	N/A		$	396,451	14.14	%	9.25	%	N/A
Tier I risk-based capital ratio	365,930		12.98	%	7.88	%	N/A		357,261		12.74	%	7.25	%	N/A
Common equity Tier I risk-based capital ratio	322,930		11.45	%	6.38	%	N/A		316,677		11.30	%	5.75	%	N/A
Tier I leverage capital ratio	365,930		9.23	%	4.00	%	N/A		357,261		9.07	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	375,434	13.31	%	9.88	%	10.00	%	$	369,540	13.18	%	9.25	%	10.00	%
Tier I risk-based capital ratio	352,422		12.49	%	7.88	%	8.00	%	345,350		12.32	%	7.25	%	8.00	%
Common equity Tier I risk-based capital ratio	352,422		12.49	%	6.38	%	6.50	%	345,350		12.32	%	5.75	%	6.50	%
Tier I leverage capital ratio	352,422		8.92	%	4.00	%	5.00	%	345,350		8.80	%	4.00	%	5.00	%

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INCOME TAXES (Tables)

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The Company's effective income tax rate for the three months ended March 31, 2018 and 2017 was as follows:

	Three Months Ended   March 31,
	2018			2017
Income tax expense	$	3,079		$	4,344
Income before income tax expense	$	15,899		$	14,420
Effective tax rate(1)	19.4		%	30.1		%

(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%, effective January 1, 2018.

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EMPLOYEE BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2018

Compensation and Retirement Disclosure [Abstract]

Components of Net Period Benefit Cost

The components of net periodic benefit cost for the periods ended March 31, 2018 and 2017 were as follows:

Supplemental Executive Retirement Plan:

		Three Months Ended   March 31,
Net periodic pension cost	Income Statement Presentation	2018		2017
Service cost	Salaries and employee benefits	$	112	$	84
Interest cost	Other expenses	122		112
Recognized net actuarial loss	Other expenses	140		62
Total		$	374	$	258

Other Postretirement Benefit Plan:

		Three Months Ended   March 31,
Net periodic postretirement benefit cost	Income Statement Presentation	2018	2017
Service cost	Salaries and employee benefits	$12	$13
Interest cost	Other expenses	33	36
Recognized net actuarial loss	Other expenses	13	10
Amortization of prior service credit	Other expenses	(6)	(6)
Total		$52	$53

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BORROWINGS (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Schedule of Borrowed Funds Outstanding

The following summarizes the Company's short-term and long-term borrowed funds as presented on the consolidated statements of condition at:

	March 31, 2018		December 31, 2017
Short-Term Borrowings (mature within one year):
Customer repurchase agreements	$	256,274	$	244,646
FHLBB borrowings	135,000		250,000
Overnight borrowings	161,350		47,150
Total short-term borrowings	$	552,624	$	541,796
Long-Term Borrowings (maturity greater than one year):
FHLBB borrowings	$	10,000	$	10,000
Capital lease obligation	773		791
Total long-term borrowings	$	10,773	$	10,791

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REPURCHASE AGREEMENTS (Tables)

3 Months Ended

Mar. 31, 2018

Banking and Thrift [Abstract]

Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets

The table below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings and types of collateral as of March 31, 2018 and December 31, 2017:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
March 31, 2018
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	1,125	$	—	$	—	$	—	$	1,125
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	90,903		—		—		—		90,903
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	164,246		—		—		—		164,246
Total Customer Repurchase Agreements	256,274		—		—		—		256,274
Total Repurchase Agreements	$	256,274	$	—	$	—	$	—	$	256,274
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	$	244,646	$	—	$	—	$	—	$	244,646

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FAIR VALUE MEASUREMENT AND DISCLOSURE (Tables)

3 Months Ended

Mar. 31, 2018

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 March 31, 2018 and December 31, 2017, 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)
March 31, 2018
Financial assets:
Loans held for sale	$	9,548	$	—	$	9,548	$	—
AFS investments:
Obligations of states and political subdivisions	5,827		—		5,827		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	502,996		—		502,996		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	282,279		—		282,279		—
Subordinated corporate bonds	5,585		—		5,585		—
Equity securities - bank stock	761		—		761		—
Customer loan swaps	10,707		—		10,707		—
Fixed-rate mortgage interest rate lock commitments	308		—		308		—
Forward delivery commitments	145		—		145		—
FHLBB advance interest rate swaps	85		—		85		—
Financial liabilities:
Junior subordinated debt interest rate swaps	5,877		—		5,877		—
Customer loan swaps	10,707		—		10,707		—
Fixed-rate mortgage interest rate lock commitments	35		—		35		—
Forward delivery commitments	22		—		22		—
December 31, 2017
Financial assets:
Loans held for sale	$	8,103	$	—	$	8,103	$	—
AFS investments:
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 investments	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		—

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 March 31, 2018 and December 31, 2017:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
March 31, 2018
Financial assets:
Collateral-dependent impaired loans	$	3,600	$	—	$	—	$	3,600
Non-financial assets:
OREO	130		—		—		130
December 31, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,696	$	—	$	—	$	3,696
Non-financial assets:
OREO	130		—		—		130

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 March 31, 2018 and December 31, 2017:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
March 31, 2018
Collateral-dependent impaired loans:
Partially charged-off	$	18	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
Specifically reserved	3,582		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 cost	10%	(10%)
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%)

Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities

The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the periods indicated:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
March 31, 2018
Financial assets:
HTM securities	$	93,192	$	91,874	$	—	$	91,874	$	—
Residential real estate loans(1)	855,036		842,132		—		—		842,132
Commercial real estate loans(1)	1,159,247		1,119,406		—		—		1,119,406
Commercial loans(1)(2)	415,879		404,925		—		—		404,925
Home equity loans(1)	318,215		311,142		—		—		311,142
Consumer loans(1)	17,781		16,880		—		—		16,880
Servicing assets	972		1,840		—		—		1,840
Financial liabilities:
Time deposits	$	538,957	$	532,244	$	—	$	532,244	$	—
Short-term borrowings	552,624		552,289		—		552,289		—
Long-term borrowings	10,773		10,658		—		10,658		—
Subordinated debentures	58,950		45,588		—		45,588		—
December 31, 2017
Financial assets:
HTM securities	$	94,073	$	94,913	$	—	$	94,913	$	—
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
Financial liabilities:
Time deposits	$	517,032	$	512,483	$	—	$	512,483	$	—
Short-term borrowings	541,796		541,605		—		541,605		—
Long-term borrowings	10,791		10,777		—		10,777		—
Subordinated debentures	58,911		44,333		—		44,333		—

(1) The presented carrying amount is net of the allocated ALL.

(2) Includes the HPFC loan portfolio.

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COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Tables)

3 Months Ended

Mar. 31, 2018

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:

	March 31, 2018		December 31,   2017
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	501,127	$	477,401
Residential	36,352		41,368
Commercial and commercial real estate	31,667		49,482
Letters of credit	3,426		2,848
Other commitments	1,151		523
Derivative Financial Instruments:
Customer loan swaps	$	708,316	$	703,336
Junior subordinated debt interest rate swaps	43,000		43,000
FHLBB advance interest rate swaps	25,000		50,000
Interest rate lock commitments	24,753		21,746
Forward delivery commitments	9,502		8,065

Summary of Derivative Financial Instruments

The details of the junior subordinated debt interest rate swaps for the periods indicated were as follows: 

						March 31, 2018		December 31,   2017
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%	$	343	$	527
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	1,695		2,133
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	1,671		2,129
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	4.35%	899		1,137
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	4.14%	1,269		1,645
$	43,000					$	5,877	$	7,571

(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:

						March 31, 2018		December 31,   2017
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)		Fair Value(1)
$	25,000	2/25/2015	2/25/2018	1-Month USD LIBOR	1.54%	$	—	$	20
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	85		1
						$	85	$	21

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

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

		March 31, 2018						December 31, 2017
	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)	63	$	334,395	$	(10,707	)	42	$	226,884	$	(5,036	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	6	19,763		402			23	124,784		1,799
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	69	354,158		10,305			65	351,668		3,237
Total		138	$	708,316	$	—		130	$	703,336	$	—

Schedule of Interest Rate Derivatives

The Company's pipeline of mortgage loans with fixed-rate interest rate lock commitments for which the Company intends to sell the loan upon origination were as follows for the periods indicated:

		March 31, 2018					December 31, 2017
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other Assets	$	20,374	$	308		$	19,886	$	307
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	4,379		(35		)	1,860		(22		)
Total		$	24,753	$	273		$	21,746	$	285

Forward Delivery Commitments

The Company's forward delivery commitments on loans held for sale was as follows for the periods indicated:

		March 31, 2018					December 31, 2017
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best effort")	Other Assets	$	8,155	$	145		$	6,692	$	158
Forward delivery commitments ("best effort")	Accrued interest and other liabilities	1,347		(22		)	1,373		(16		)
Total		$	9,502	$	123		$	8,065	$	142

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 Three Months Ended March 31
	2018		2017
Derivatives designated as cash flow hedges:
Effective portion of unrealized gains recognized within AOCI during the period, net of tax	$	1,328	$	90
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	64	$	455

(1) Reclassified into the consolidated statements of income within interest expense.

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RECENT ACCOUNTING PRONOUNCEMENTS NEW ACCOUNTING PRONOUNCEMENTS (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity investments gain (loss)	$ (35)
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment	$ 198
Accounting Standards Update 2016-01 | AOCI
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment		$ (198)
Accounting Standards Update 2016-01 | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment		$ 198

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EARNINGS PER SHARE (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net income	$ 12,820	$ 10,076
Dividends and undistributed earnings allocated to participating securities	(40)	(45)
Net income available to common shareholders	$ 12,780	$ 10,031
Weighted-average common shares outstanding for basic EPS	15,541,975	15,488,848
Dilutive effect of stock-based awards (shares)	61,405	79,791
Weighted-average common and potential common shares for diluted EPS (shares)	15,603,380	15,568,639
Basic EPS (in dollars per share)	$ 0.82	$ 0.65
Diluted EPS (in dollars per share)	$ 0.82	$ 0.64
Antidilutive Stock options (shares)	0	0

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INVESTMENTS (Summary of Amortized Costs and Estimated Fair Values of Available-For-Sale Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule of Investments [Line Items]
Available-for-sale securities, at fair value	$ 796,687	$ 789,899
Held-to-maturity securities, at amortized cost	93,192	94,073
Held-to-maturity securities, Unrealized Gains	130	1,077
Held-to-maturity securities, Unrealized Losses	(1,448)	(237)
Held-to-maturity Securities, Fair Value	91,874	94,913
Obligations of states and political subdivisions
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	5,776	7,232
Available-for-sale, Unrealized Gains	55	103
Available-for-sale, Unrealized Losses	(4)	0
Available-for-sale securities, at fair value	5,827	7,335
Held-to-maturity securities, at amortized cost	93,192	94,073
Held-to-maturity securities, Unrealized Gains	130	1,077
Held-to-maturity securities, Unrealized Losses	(1,448)	(237)
Held-to-maturity Securities, Fair Value	91,874	94,913
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	517,823	510,176
Available-for-sale, Unrealized Gains	490	597
Available-for-sale, Unrealized Losses	(15,317)	(7,471)
Available-for-sale securities, at fair value	502,996	503,302
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	293,371	279,575
Available-for-sale, Unrealized Gains	6	14
Available-for-sale, Unrealized Losses	(11,098)	(6,790)
Available-for-sale securities, at fair value	282,279	272,799
Corporate Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	5,485	5,484
Available-for-sale, Unrealized Gains	119	173
Available-for-sale, Unrealized Losses	(19)	0
Available-for-sale securities, at fair value	5,585	5,657
Equity Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost		554
Available-for-sale, Unrealized Gains		252
Available-for-sale, Unrealized Losses		0
Available-for-sale securities, at fair value		806
Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	822,455	803,021
Available-for-sale, Unrealized Gains	670	1,139
Available-for-sale, Unrealized Losses	(26,438)	(14,261)
Available-for-sale securities, at fair value	$ 796,687	$ 789,899

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INVESTMENTS (Schedule of Unrealized Gross Losses and Estimated Fair values of Investment Securities) (Details) $ in Thousands	Mar. 31, 2018 USD ($) security	Dec. 31, 2017 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security	328	209
Fair Value - Less Than 12 Months	$ 362,001	$ 324,078
Unrealized Losses - Less Than 12 Months	(7,992)	(3,089)
Fair Value - 12 Months of More	388,579	398,360
Unrealized Losses - 12 Months or More	(18,446)	(11,172)
Fair Value	750,580	722,438
Unrealized losses	(26,438)	(14,261)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	62,815	9,317
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(958)	(57)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	10,225	9,436
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(490)	(180)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	73,040	18,753
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,448)	(237)
AFS and HTM securities in Continuous Unrealized Loss Position	$ 823,600	$ 741,200
Unrealized Loss as a Percent of Fair Value	3.00%	2.00%
AFS and HTM Securities Unrealized Loss Accumulated in Investments	$ 27,900	$ 14,500
Mortgage Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
AFS and HTM Securities Unrealized Loss Accumulated in Investments	18,400	11,200
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Available-for-sale Securities [Line Items]
Fair Value - Less Than 12 Months	236,851	221,466
Unrealized Losses - Less Than 12 Months	(5,661)	(2,393)
Fair Value - 12 Months of More	233,957	233,971
Unrealized Losses - 12 Months or More	(9,656)	(5,078)
Fair Value	470,808	455,437
Unrealized losses	(15,317)	(7,471)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Available-for-sale Securities [Line Items]
Fair Value - Less Than 12 Months	122,669	102,612
Unrealized Losses - Less Than 12 Months	(2,308)	(696)
Fair Value - 12 Months of More	154,622	164,389
Unrealized Losses - 12 Months or More	(8,790)	(6,094)
Fair Value	277,291	267,001
Unrealized losses	(11,098)	(6,790)
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value - Less Than 12 Months	965
Unrealized Losses - Less Than 12 Months	(19)
Fair Value - 12 Months of More	0
Unrealized Losses - 12 Months or More	0
Fair Value	965
Unrealized losses	(19)
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Fair Value - Less Than 12 Months	1,516
Unrealized Losses - Less Than 12 Months	(4)
Fair Value - 12 Months of More	0
Unrealized Losses - 12 Months or More	0
Fair Value	1,516
Unrealized losses	(4)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	62,815	9,317
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(958)	(57)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	10,225	9,436
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(490)	(180)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	73,040	18,753
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (1,448)	$ (237)

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INVESTMENTS (Schedule of Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available-for-sale, Amortized Cost
Due in one year or less	$ 5,307
Due after one year through five years	112,412
Due after five years through ten years	213,112
Due after ten years	491,624
Amortized cost, total	822,455
Available-for-sale, Fair Value
Due in one year or less	5,302
Due after one year through five years	110,253
Due after five years through ten years	206,368
Due after ten years	474,764
Fair value, total	796,687
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Due in one year or less	1,418
Due after one year through five years	3,783
Due after five years through ten years	13,035
Due after ten years	74,956
Held-to-maturity securities, at amortized cost	93,192	$ 94,073
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value [Abstract]
Due in one year or less	1,418
Due after one year through five years	3,796
Due after five years through ten years	12,954
Due after ten years	73,706
Held-to-maturity Securities, Fair Value	$ 91,874	$ 94,913

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INVESTMENTS (Narrative) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) security	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($) security
Schedule of Investments [Line Items]
Net unrealized gains (losses) on available-for-sale securities, net of tax	$ (20,227)		$ (10,300)
Deferred tax assets, unrealized losses on available for sale securities	5,500		$ 2,800
Payments to acquire investments	$ 50,100	$ 77,300
AFS securities in unrealized loss positions, number of positions | security	328		209
AFS and HTM securities in Continuous Unrealized Loss Position	$ 823,600		$ 741,200
AFS and HTM Securities Unrealized Loss Accumulated in Investments	27,900		14,500
Fair Value - 12 Months of More	$ 388,579		$ 398,360
Unrealized Loss as a Percent of Fair Value	3.00%		2.00%
Investment securities sold, carrying amount	$ 19,400
Federal Home Loan Bank Stock	17,639		$ 18,296
Federal Reserve Bank Stock	5,374		5,374
Security pledged as collateral, amortized cost	684,300		702,500
Security pledged as collateral, fair value	661,900		691,200
Unrealized loss, change in fair value of bank stock equity securities	35
Gain on sale of other investment	195
Residential Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Fair Value - 12 Months of More	388,600
Collateralized Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Fair Value - 12 Months of More	398,400
Mortgage Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Investments [Line Items]
AFS and HTM Securities Unrealized Loss Accumulated in Investments	18,400		11,200
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
Fair Value - 12 Months of More	233,957		233,971
Collateralized Mortgage Obligations [Member]
Schedule of Investments [Line Items]
Fair Value - 12 Months of More	$ 154,622		$ 164,389

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INVESTMENTS (Schedule of Amortized Cost and Fair Value of Other Investments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Equity securities - bank stock, Amortized Cost	$ 544
Equity securities - bank stock, Unrealized Gains	217
Equity securities - bank stock, Unrealized Losses	0
Equity securities - bank stock, Fair Value	761
FHLBB (carried at cost)	17,639		$ 18,296
FRB (carried at cost)	5,374		5,374
Other Investments, Amortized Cost	23,557		23,670
Other Investments, Unrealized Gain	217	$ 0
Other Investments, Unrealized Loss	0	$ 0
Other Investments, Fair Value	$ 23,774		$ 23,670

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Composition of Loan Portfolio) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net unamortized loan origination costs	$ (958)	$ (963)
Loans	2,789,148	2,782,439	$ 2,645,139
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	860,533	858,369
Loans	860,533	858,369	819,639
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,169,533	1,164,023
Loans	1,169,533	1,164,023	1,096,475
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	378,015	373,400
Loans	378,015	373,400	333,607
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	320,642	323,378
Loans	320,642	323,378	322,826
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,011	18,149
Loans	18,011	18,149	16,669
HPFC Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	42,414	45,120
Loans	$ 42,414	$ 45,120	$ 55,923

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Narrative) (Details)	3 Months Ended
	Mar. 31, 2018 USD ($) loan	Mar. 31, 2017 USD ($) loan	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	$ 14,898,000		$ 15,314,000
Other industry exposures	0
Interest lost on nonaccrual loans	$ 162,000	$ 210,000
Number of TDRs | loan	0	1
Loans modified | loan	0	0
Financing Receivable, Individually Evaluated for Impairment	$ 11,225,000	$ 20,128,000	13,590,000
Proceeds from the sale of mortgage loans	46,426,000	44,320,000
Gain on sale of mortgage loans	1,220,000	1,280,000
Loans held for sale, at fair value	9,548,000		8,103,000
Financing Receivable, Allowance for Credit Losses	22,990,000	23,721,000	24,171,000	$ 23,116,000
FHLB advances, general debt obligations, pledged collateral	1,100,000,000		1,100,000,000
Derivative, Fair Value, Net	123,000		142,000
Unrealized Gain (Loss) on Derivatives	(12,000)	(12,000)
Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans restructured due to credit difficulties that are now performing	4,400,000		5,000,000
Financing receivables impaired TDR non-performing	1,200,000		1,200,000
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	6,185,000		4,979,000
Financing Receivable, Individually Evaluated for Impairment	5,059,000	4,408,000	5,171,000
Mortgage Loans in Process of Foreclosure, Amount	2,000,000		1,900,000
Financing Receivable, Allowance for Credit Losses	5,497,000	4,271,000	5,086,000	4,160,000
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	4,603,000		5,642,000
Financing Receivable, Individually Evaluated for Impairment	3,961,000	13,191,000	6,199,000
Financing Receivable, Allowance for Credit Losses	10,286,000	12,726,000	11,863,000	12,154,000
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	1,991,000		2,000,000
Financing Receivable, Individually Evaluated for Impairment	1,714,000	1,994,000	1,791,000
Financing Receivable, Allowance for Credit Losses	4,126,000	3,815,000	4,171,000	3,755,000
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	1,464,000		1,650,000
Financing Receivable, Individually Evaluated for Impairment	491,000	430,000	429,000
Financing Receivable, Allowance for Credit Losses	2,427,000	2,107,000	2,367,000	2,194,000
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	0		0
Financing Receivable, Individually Evaluated for Impairment	0	7,000
Financing Receivable, Allowance for Credit Losses	230,000	175,000	233,000	181,000
HPFC Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	655,000		1,043,000
Financing Receivable, Individually Evaluated for Impairment	0	98,000
Financing Receivable, Allowance for Credit Losses	424,000	627,000	451,000	$ 672,000
Fixed Rate Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from the sale of mortgage loans	45,200,000	43,000,000
Gain on sale of mortgage loans	1,200,000	1,300,000
Loans held for sale, at fair value	9,500,000		8,100,000
Nonoperating Income (Expense) | Fixed Rate Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gain on sale of mortgage loans	9,000	254,000
Unrealized gain (loss) on loans held for sale	$ 47,000	37,000
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment			250,000
Number of Months	18
Minimum | HPFC Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term to maturity	7 years
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Months	24
Maximum | HPFC Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term to maturity	10 years
Non-Residential Building Operators Industry Sector | Loan Concentration Risk | Total Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk (percentage)	11.00%
Non-Residential Building Operators Industry Sector | Loan Concentration Risk | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk (percentage)	26.00%
Substandard (Grade 8) | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 500,000
Forward Contracts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Derivative, Fair Value, Net	123,000		$ 142,000
Unrealized Gain (Loss) on Derivatives	$ 19,000	$ 118,000

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Activity in Allowance for Loan Losses by Portfolio Segment) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Reserve for unfunded commitments	$ 23,000	$ 9,000	$ 20,000
Activity in ALL:
Beginning balance	24,171,000	23,116,000	23,116,000
Loans charged off	(803,000)	(159,000)	(2,468,000)
Recoveries	122,000	183,000	497,000
Provision (credit)(1)	(500,000)	581,000	3,026,000
Ending balance	22,990,000	23,721,000	24,171,000
Ending Balance: Individually evaluated for impairment	1,033,000	1,734,000	2,009,000
Ending Balance: Collectively evaluated for impairment	21,957,000	21,987,000	22,162,000
Ending Balance: Individually evaluated for impairment	11,225,000	20,128,000	13,590,000
Ending Balance: Collectively evaluated for impairment	2,777,923,000	2,625,011,000	2,768,849,000
Total Loans Outstanding	2,789,148,000	2,645,139,000	2,782,439,000
Residential Real Estate
Activity in ALL:
Beginning balance	5,086,000	4,160,000	4,160,000
Loans charged off	(31,000)	(5,000)	(482,000)
Recoveries	0	0	30,000
Provision (credit)(1)	442,000	116,000	1,378,000
Ending balance	5,497,000	4,271,000	5,086,000
Ending Balance: Individually evaluated for impairment	553,000	485,000	568,000
Ending Balance: Collectively evaluated for impairment	4,944,000	3,786,000	4,518,000
Ending Balance: Individually evaluated for impairment	5,059,000	4,408,000	5,171,000
Ending Balance: Collectively evaluated for impairment	855,474,000	815,231,000	853,198,000
Total Loans Outstanding	860,533,000	819,639,000	858,369,000
Commercial Real Estate
Activity in ALL:
Beginning balance	11,863,000	12,154,000	12,154,000
Loans charged off	(426,000)	(3,000)	(124,000)
Recoveries	13,000	103,000	141,000
Provision (credit)(1)	(1,164,000)	472,000	(308,000)
Ending balance	10,286,000	12,726,000	11,863,000
Ending Balance: Individually evaluated for impairment	368,000	1,100,000	1,441,000
Ending Balance: Collectively evaluated for impairment	9,918,000	11,626,000	10,422,000
Ending Balance: Individually evaluated for impairment	3,961,000	13,191,000	6,199,000
Ending Balance: Collectively evaluated for impairment	1,165,572,000	1,083,284,000	1,157,824,000
Total Loans Outstanding	1,169,533,000	1,096,475,000	1,164,023,000
Commercial
Activity in ALL:
Beginning balance	4,171,000	3,755,000	3,755,000
Loans charged off	(171,000)	(136,000)	(1,014,000)
Recoveries	63,000	77,000	301,000
Provision (credit)(1)	63,000	119,000	1,129,000
Ending balance	4,126,000	3,815,000	4,171,000
Ending Balance: Individually evaluated for impairment	0	0
Ending Balance: Collectively evaluated for impairment	4,126,000	3,815,000	4,171,000
Ending Balance: Individually evaluated for impairment	1,714,000	1,994,000	1,791,000
Ending Balance: Collectively evaluated for impairment	376,301,000	331,613,000	371,609,000
Total Loans Outstanding	378,015,000	333,607,000	373,400,000
Home Equity
Activity in ALL:
Beginning balance	2,367,000	2,194,000	2,194,000
Loans charged off	(149,000)	(1,000)	(434,000)
Recoveries	43,000	1,000	2,000
Provision (credit)(1)	166,000	(87,000)	605,000
Ending balance	2,427,000	2,107,000	2,367,000
Ending Balance: Individually evaluated for impairment	112,000	83,000
Ending Balance: Collectively evaluated for impairment	2,315,000	2,024,000	2,367,000
Ending Balance: Individually evaluated for impairment	491,000	430,000	429,000
Ending Balance: Collectively evaluated for impairment	320,151,000	322,396,000	322,949,000
Total Loans Outstanding	320,642,000	322,826,000	323,378,000
Consumer
Activity in ALL:
Beginning balance	233,000	181,000	181,000
Loans charged off	(26,000)	(14,000)	(124,000)
Recoveries	3,000	2,000	17,000
Provision (credit)(1)	20,000	6,000	159,000
Ending balance	230,000	175,000	233,000
Ending Balance: Individually evaluated for impairment	0	0
Ending Balance: Collectively evaluated for impairment	230,000	175,000	233,000
Ending Balance: Individually evaluated for impairment	0	7,000
Ending Balance: Collectively evaluated for impairment	18,011,000	16,662,000	18,149,000
Total Loans Outstanding	18,011,000	16,669,000	18,149,000
HPFC Portfolio Segment
Activity in ALL:
Beginning balance	451,000	672,000	672,000
Loans charged off	0	0	(290,000)
Recoveries	0	0	6,000
Provision (credit)(1)	(27,000)	(45,000)	63,000
Ending balance	424,000	627,000	451,000
Ending Balance: Individually evaluated for impairment	0	66,000
Ending Balance: Collectively evaluated for impairment	424,000	561,000	451,000
Ending Balance: Individually evaluated for impairment	0	98,000
Ending Balance: Collectively evaluated for impairment	42,414,000	55,825,000	45,120,000
Total Loans Outstanding	$ 42,414,000	$ 55,923,000	$ 45,120,000

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Provision for Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
LOANS AND ALLOWANCE FOR LOAN LOSSES [Abstract]
Provision (credit)(1)	$ (500)	$ 581	$ 3,026
Change in reserve for unfunded commitments	3	(2)	9
(Credit) provision for credit losses	$ (497)	$ 579	$ 3,035

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES (Credit Risk Exposure Indicators by Portfolio Segment) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 2,789,148	$ 2,782,439	$ 2,645,139
Pass (Grades 1-6)
Financing Receivable, Recorded Investment [Line Items]
Loans	2,396,914	2,374,582
Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	337,189	339,876
Special Mention (Grade 7)
Financing Receivable, Recorded Investment [Line Items]
Loans	21,783	22,784
Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	31,798	43,546
Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans	1,464	1,651
Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans	860,533	858,369	819,639
Residential Real Estate | Pass (Grades 1-6)
Financing Receivable, Recorded Investment [Line Items]
Loans	847,822	846,394
Residential Real Estate | Special Mention (Grade 7)
Financing Receivable, Recorded Investment [Line Items]
Loans	662	922
Residential Real Estate | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	12,049	11,053
Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans	1,169,533	1,164,023	1,096,475
Commercial Real Estate | Pass (Grades 1-6)
Financing Receivable, Recorded Investment [Line Items]
Loans	1,146,947	1,130,235
Commercial Real Estate | Special Mention (Grade 7)
Financing Receivable, Recorded Investment [Line Items]
Loans	8,510	9,154
Commercial Real Estate | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	14,076	24,634
Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	378,015	373,400	333,607
Commercial | Pass (Grades 1-6)
Financing Receivable, Recorded Investment [Line Items]
Loans	361,377	354,904
Commercial | Special Mention (Grade 7)
Financing Receivable, Recorded Investment [Line Items]
Loans	12,437	12,517
Commercial | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	4,201	5,979
Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans	320,642	323,378	322,826
Home Equity | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	319,178	321,727
Home Equity | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans	1,464	1,651
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	18,011	18,149	16,669
Consumer | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	18,011	18,149
HPFC Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Loans	42,414	45,120	$ 55,923
HPFC Portfolio Segment | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	40,768	43,049
HPFC Portfolio Segment | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	174	191
HPFC Portfolio Segment | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 1,472	$ 1,880

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Loan Aging Analysis by Portfolio Segment) (Details)	3 Months Ended
	Mar. 31, 2018 USD ($) loan	Mar. 31, 2017 USD ($) loan	Dec. 31, 2017 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of TDRs | loan	0	1
Total Past Due	$ 19,248,000		$ 22,945,000
Current	2,769,900,000		2,759,494,000
Total Loans Outstanding	2,789,148,000	$ 2,645,139,000	2,782,439,000
Loans 90 Days Past Due and Accruing	0		0
Non-Accrual Loans	14,898,000		15,314,000
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0	151,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	151,000
Allowance Related to Troubled Debt Restructurings assigned during period	0	15,000
Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,264,000		9,477,000
Current	852,269,000		848,892,000
Total Loans Outstanding	860,533,000	819,639,000	858,369,000
Loans 90 Days Past Due and Accruing	0		0
Non-Accrual Loans	6,185,000		4,979,000
Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,694,000		6,700,000
Current	1,163,839,000		1,157,323,000
Total Loans Outstanding	1,169,533,000	1,096,475,000	1,164,023,000
Loans 90 Days Past Due and Accruing	0		0
Non-Accrual Loans	4,603,000		5,642,000
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,779,000		2,223,000
Current	376,236,000		371,177,000
Total Loans Outstanding	378,015,000	333,607,000	373,400,000
Loans 90 Days Past Due and Accruing	0		0
Non-Accrual Loans	1,991,000		2,000,000
Home Equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,305,000		2,548,000
Current	318,337,000		320,830,000
Total Loans Outstanding	320,642,000	322,826,000	323,378,000
Loans 90 Days Past Due and Accruing	0		0
Non-Accrual Loans	1,464,000		1,650,000
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	23,000		67,000
Current	17,988,000		18,082,000
Total Loans Outstanding	18,011,000	16,669,000	18,149,000
Loans 90 Days Past Due and Accruing	0		0
Non-Accrual Loans	0		0
HPFC Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,183,000		1,930,000
Current	41,231,000		43,190,000
Total Loans Outstanding	42,414,000	$ 55,923,000	45,120,000
Loans 90 Days Past Due and Accruing	0		0
Non-Accrual Loans	655,000		1,043,000
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,812,000		6,291,000
30-59 Days Past Due | Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,969,000		3,871,000
30-59 Days Past Due | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,455,000		849,000
30-59 Days Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	144,000		329,000
30-59 Days Past Due | Home Equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,121,000		1,046,000
30-59 Days Past Due | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	14,000		57,000
30-59 Days Past Due | HPFC Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	109,000		139,000
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,237,000		3,822,000
60-89 Days Past Due | Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	533,000		1,585,000
60-89 Days Past Due | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	72,000		323,000
60-89 Days Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	103,000		359,000
60-89 Days Past Due | Home Equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	101,000		173,000
60-89 Days Past Due | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,000		10,000
60-89 Days Past Due | HPFC Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	419,000		1,372,000
Greater than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,199,000		12,832,000
Greater than 90 Days | Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,762,000		4,021,000
Greater than 90 Days | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,167,000		5,528,000
Greater than 90 Days | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,532,000		1,535,000
Greater than 90 Days | Home Equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,083,000		1,329,000
Greater than 90 Days | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0		0
Greater than 90 Days | HPFC Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 655,000		$ 419,000

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring Loans) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) loan	Mar. 31, 2017 loan	Dec. 31, 2017 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	35		36
Recorded Investment	$ 5,580		$ 6,232
Specific Reserve	$ 430		$ 468
Number of Contracts | loan	0	1
Residential Real Estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	24		24
Recorded Investment	$ 3,581		$ 3,604
Specific Reserve	$ 410		$ 452
Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	2		3
Recorded Investment	$ 354		$ 976
Specific Reserve	$ 20		$ 16
Commercial
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	7		7
Recorded Investment	$ 1,339		$ 1,345
Specific Reserve	$ 0		$ 0
Consumer
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	2		2
Recorded Investment	$ 306		$ 307
Specific Reserve	$ 0		$ 0

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LOANS AND ALLOWANCE FOR LOAN LOSSES, Troubled Debt Restructuring by Portfolio Segment (Details)	3 Months Ended
	Mar. 31, 2018 USD ($) loan	Mar. 31, 2017 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of TDRs | loan	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 151,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	151,000
Allowance Related to Troubled Debt Restructurings assigned during period	$ 0	$ 15,000
Residential Real Estate [Member] | Extended Maturity [Member]
Financing Receivable, Modifications [Line Items]
Number of TDRs | loan	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 151,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	151,000
Allowance Related to Troubled Debt Restructurings assigned during period	$ 0	$ 15,000

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Impaired Loan Balances and Associated Allowance by Portfolio Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	$ 7,282	$ 15,235	$ 9,280
Unpaid Principal Balance - with an allowance recorded	7,282	15,235	9,280
Related Allowance	1,033	1,734	2,009
Average Recorded Investment - with an allowance recorded	8,069	15,075	12,257
Interest Income Recognized - with an allowance recorded	31	26	153
Recorded Investment - without allowance recorded	3,943	4,893	4,310
Unpaid Principal Balance - without allowance recorded	5,859	6,893	6,216
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average Recorded Investment - without allowance recorded	4,123	5,166	4,709
Interest Income Recognized - without allowance recorded	14	15	62
Impaired Financing Receivable, Recorded Investment	11,225	20,128	13,590
Impaired financing receivable, unpaid principal balance	13,141	22,128	15,496
Impaired Financing Receivable, Average Recorded Investment	12,192	20,241	16,966
Impaired Financing Receivable, Interest Income, Accrual Method	45	41	215
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	3,544	3,048	3,858
Unpaid Principal Balance - with an allowance recorded	3,544	3,048	3,858
Related Allowance	553	485	568
Average Recorded Investment - with an allowance recorded	3,745	3,025	3,177
Interest Income Recognized - with an allowance recorded	30	26	131
Recorded Investment - without allowance recorded	1,515	1,360	1,313
Unpaid Principal Balance - without allowance recorded	1,791	1,740	1,673
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average Recorded Investment - without allowance recorded	1,350	1,292	1,345
Interest Income Recognized - without allowance recorded	7	2	15
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	3,591	11,791	5,422
Unpaid Principal Balance - with an allowance recorded	3,591	11,791	5,422
Related Allowance	368	1,100	1,441
Average Recorded Investment - with an allowance recorded	4,275	11,654	8,900
Interest Income Recognized - with an allowance recorded	1		22
Recorded Investment - without allowance recorded	370	1,400	777
Unpaid Principal Balance - without allowance recorded	677	1,707	1,084
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average Recorded Investment - without allowance recorded	637	1,704	1,132
Interest Income Recognized - without allowance recorded	3	10	29
Commercial
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0	1	0
Unpaid Principal Balance - with an allowance recorded	0	1	0
Related Allowance	0	0	0
Average Recorded Investment - with an allowance recorded			31
Recorded Investment - without allowance recorded	1,714	1,993	1,791
Unpaid Principal Balance - without allowance recorded	2,923	3,167	2,964
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average Recorded Investment - without allowance recorded	1,740	2,024	1,920
Interest Income Recognized - without allowance recorded	2	3	10
Home Equity
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	147	297	0
Unpaid Principal Balance - with an allowance recorded	147	297	0
Related Allowance	112	83	0
Average Recorded Investment - with an allowance recorded	49	298	125
Recorded Investment - without allowance recorded	344	133	429
Unpaid Principal Balance - without allowance recorded	468	269	495
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average Recorded Investment - without allowance recorded	396	139	310
Interest Income Recognized - without allowance recorded	2		8
Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0	0	0
Unpaid Principal Balance - with an allowance recorded	0	0	0
Related Allowance	0	0	0
Average Recorded Investment - with an allowance recorded			0
Recorded Investment - without allowance recorded	0	7	0
Unpaid Principal Balance - without allowance recorded	0	10	0
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0
Average Recorded Investment - without allowance recorded		7	2
HPFC Portfolio Segment
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0	98	0
Unpaid Principal Balance - with an allowance recorded	0	98	0
Related Allowance	0	66	0
Average Recorded Investment - with an allowance recorded		98	24
Recorded Investment - without allowance recorded	0	0	0
Unpaid Principal Balance - without allowance recorded	0	0	0
Impaired Financing Receivable With No Related Allowance Related Allowance	$ 0	$ 0
Average Recorded Investment - without allowance recorded			$ 0

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES (Unamortized fair value mark and costs) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Receivables [Abstract]
Net Unamortized fair Value Mark (Discount) on Loans	$ 5,703	$ 6,207
Loans and Leases Receivable, Deferred Income	(958)	(963)
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	$ 4,745	$ 5,244

XML

REGULATORY CAPITAL REQUIREMENTS (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Oct. 08, 2015
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Subordinated debentures	$ 58,950	$ 58,911	$ 15,000
Capital	$ 403,941	$ 396,451
Capital to Risk Weighted Assets	14.32%	14.14%
Capital Required for Capital Adequacy to Risk Weighted Assets	9.875%	9.25%
Tier One Risk Based Capital	$ 365,930	$ 357,261
Tier One Risk Based Capital to Risk Weighted Assets	12.98%	12.74%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	7.875%	7.25%
Common equity tier I capital	$ 322,930	$ 316,677
Common Equity Tier I Risk Based Capital Ratio	11.45%	11.30%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	6.375%	5.75%
Tier One Leverage Capital	$ 365,930	$ 357,261
Excess Tier One Leverage Capital to Average Assets	9.23%	9.07%
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Subsidiaries
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital	$ 375,434	$ 369,540
Capital to Risk Weighted Assets	13.31%	13.18%
Capital Required for Capital Adequacy to Risk Weighted Assets	9.875%	9.25%
Tier One Risk Based Capital	$ 352,422	$ 345,350
Capital Required to be Well Capitalized to Risk Weighted Assets	10.00%	10.00%
Tier One Risk Based Capital to Risk Weighted Assets	12.49%	12.32%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	7.875%	7.25%
Common equity tier I capital	$ 352,422	$ 345,350
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	8.00%	8.00%
Common Equity Tier I Risk Based Capital Ratio	12.49%	12.32%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	6.375%	5.75%
Tier One Leverage Capital	$ 352,422	$ 345,350
Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.50%	6.50%
Excess Tier One Leverage Capital to Average Assets	8.92%	8.80%
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	5.00%	5.00%

XML

REGULATORY CAPITAL REQUIREMENTS Regulatory Capital Requirements (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Oct. 08, 2015
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital Required for Capital Adequacy to Risk Weighted Assets	9.875%	9.25%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	7.875%	7.25%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	6.375%	5.75%
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Capital Conservation Buffer	2.50%
Value Of Trust Preferred Securities Included In Tier One Capital	$ 43,000	$ 43,000
Subordinated Debt	$ 58,950	58,911	$ 15,000
Minimum
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital Required for Capital Adequacy to Risk Weighted Assets	8.00%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	6.00%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.50%
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%
Capital Conservation Buffer	1.875%
Tier II Capital [Domain]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Subordinated Debt	$ 15,000	$ 15,000

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INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense	$ 3,079	$ 4,344
Income before income tax expense	$ 15,899	$ 14,420
Effective tax rate(1)	19.40%	30.10%

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EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Supplemental Employee Retirement Plan [Member]
Net periodic pension cost
Service cost	$ 112	$ 84
Interest cost	122	112
Recognized net actuarial loss	140	62
Net period benefit cost	374	258
Other Postretirement Benefit Plan
Net periodic pension cost
Service cost	12	13
Interest cost	33	36
Recognized net actuarial loss	13	10
Recognized prior service cost	(6)	(6)
Net period benefit cost	$ 52	$ 53

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BORROWINGS (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Repurchase Agreements	$ 256,274	$ 244,646
Total short-term borrowings	552,624	541,796
Long-term Federal Home Loan Bank Advances	10,000	10,000
Total long-term borrowings	10,773	10,791
Short-term Debt [Member]
Debt Instrument [Line Items]
Repurchase Agreements	256,274	244,646
FHLBB advances less than 90 days	135,000	250,000
FHLBB and correspondent bank overnight borrowings	161,350	47,150
Long-term Debt [Member]
Debt Instrument [Line Items]
Capital lease obligation	$ 773	$ 791

XML

REPURCHASE AGREEMENTS (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets Sold under Agreements to Repurchase [Line Items]
Certificates of Deposit, at Carrying Value	$ 920	$ 920,000
Repurchase Agreements	256,274	244,646
Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	256,274	244,646
Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	256,274	244,646
Retail Customers | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	256,274	244,646
Retail Customers | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Obligations of states and political subdivisions
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	1,125	630
Retail Customers | Obligations of states and political subdivisions | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	1,125	630
Retail Customers | Obligations of states and political subdivisions | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Obligations of states and political subdivisions | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Obligations of states and political subdivisions | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	90,903	98,460
Retail Customers | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	90,903	98,460
Retail Customers | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	164,246	145,556
Retail Customers | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	164,246	145,556
Retail Customers | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Retail Customers | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 0	$ 0

XML

FAIR VALUE MEASUREMENT AND DISCLOSURE (Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financial assets:
Available-for-sale Securities	$ 796,687	$ 789,899
Obligations of states and political subdivisions
Financial assets:
Available-for-sale Securities	5,827	7,335
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	502,996	503,302
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	282,279	272,799
Equity Securities [Member]
Financial assets:
Available-for-sale Securities		806
Fair Value, Measurements, Recurring
Financial assets:
Loans held for sale	9,548	8,103
Customer loan swaps	10,707
Financial liabilities:
Junior subordinated debt interest rate swaps		7,571
Customer loan swaps	22
Fair Value, Measurements, Recurring | Obligations of states and political subdivisions
Financial assets:
Available-for-sale Securities	5,827	7,335
Fair Value, Measurements, Recurring | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	502,996	503,302
Fair Value, Measurements, Recurring | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	282,279	272,799
Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]
Financial assets:
Available-for-sale Securities	5,585	5,657
Fair Value, Measurements, Recurring | Equity Securities [Member]
Financial assets:
Available-for-sale Securities	761	806
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring
Financial assets:
Loans held for sale	0	0
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]
Financial assets:
Available-for-sale Securities	0	0
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring | Equity Securities [Member]
Financial assets:
Available-for-sale Securities	0	0
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial assets:
Loans held for sale	9,548	8,103
Customer loan swaps	10,707
Financial liabilities:
Junior subordinated debt interest rate swaps		7,571
Customer loan swaps	22
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Obligations of states and political subdivisions
Financial assets:
Available-for-sale Securities	5,827	7,335
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	502,996	503,302
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	282,279	272,799
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]
Financial assets:
Available-for-sale Securities	5,585	5,657
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Equity Securities [Member]
Financial assets:
Available-for-sale Securities	761	806
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring
Financial assets:
Loans held for sale	0	0
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]
Financial assets:
Available-for-sale Securities	0	0
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring | Equity Securities [Member]
Financial assets:
Available-for-sale Securities	0	0
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps	308	307
Financial liabilities:
Customer loan swaps	35	22
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps	308	307
Financial liabilities:
Customer loan swaps	35	22
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring
Financial liabilities:
Customer loan swaps	0	0
Forward Contracts [Member] | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps	145	158
Financial liabilities:
Customer loan swaps		16
Forward Contracts [Member] | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps	145	158
Financial liabilities:
Customer loan swaps		16
Interest rate swaps | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps		5,036
Financial liabilities:
Junior subordinated debt interest rate swaps	5,877
Customer loan swaps		5,036
Interest rate swaps | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps		5,036
Financial liabilities:
Junior subordinated debt interest rate swaps	5,877
Customer loan swaps		5,036
Forward-Starting Interest Rate Swap | Fair Value, Measurements, Recurring
Financial liabilities:
Junior subordinated debt interest rate swaps	85	21
Forward-Starting Interest Rate Swap | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring
Financial liabilities:
Junior subordinated debt interest rate swaps	0	0
Forward-Starting Interest Rate Swap | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial liabilities:
Junior subordinated debt interest rate swaps	85	$ 21
Forward-Starting Interest Rate Swap | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring
Financial liabilities:
Junior subordinated debt interest rate swaps	0
Customer Loan Swaps | Fair Value, Measurements, Recurring
Financial liabilities:
Customer loan swaps	10,707
Customer Loan Swaps | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring
Financial liabilities:
Customer loan swaps	0
Customer Loan Swaps | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial liabilities:
Customer loan swaps	10,707
Customer Loan Swaps | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring
Financial liabilities:
Customer loan swaps	$ 0

XML

FAIR VALUE MEASUREMENT AND DISCLOSURE (Summary of Assets Measured at Fair Value on Non Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Collateral-dependent impaired loans | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	$ 3,600	$ 3,696
Collateral-dependent impaired loans | Fair Value, Measurements, Nonrecurring | Company Determined Fair Value (Level 3)
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	3,600	3,696
Other real estate owned | Company Determined Fair Value (Level 3)
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	130	130
Other real estate owned | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	130	130
Other real estate owned | Fair Value, Measurements, Nonrecurring | Company Determined Fair Value (Level 3)
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	$ 130	$ 130

XML

FAIR VALUE MEASUREMENT AND DISCLOSURE (Schedule of Valuation Methodology and Unobservable Inputs) (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Impaired Loans Partially Charged Off
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 18	$ 86
Impaired Loans Partially Charged Off | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	0.00%
Estimated selling cost	10.00%	0.00%
Impaired Loans Partially Charged Off | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	50.00%
Estimated selling cost	10.00%	10.00%
Impaired Loans Partially Charged Off | Market Approach Valuation Technique | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	18.00%
Estimated selling cost	10.00%	6.00%
Impaired Loans Specifically Reserved
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 3,582	$ 3,610
Impaired Loans Specifically Reserved | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	0.00%
Estimated selling cost	0.00%	10.00%
Impaired Loans Specifically Reserved | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	0.00%
Estimated selling cost	0.00%	10.00%
Impaired Loans Specifically Reserved | Market Approach Valuation Technique | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	0.00%
Estimated selling cost	0.00%	10.00%
Other real estate owned
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 130	$ 130
Other real estate owned | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	20.00%	20.00%
Estimated selling cost	10.00%	10.00%
Other real estate owned | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	20.00%	20.00%
Estimated selling cost	10.00%	10.00%
Other real estate owned | Market Approach Valuation Technique | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	20.00%	20.00%
Estimated selling cost	10.00%	10.00%

XML

FAIR VALUE MEASUREMENT AND DISCLOSURE (Schedule of Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financial assets:
Available-for-sale Securities	$ 796,687	$ 789,899
Held-to-maturity securities, at amortized cost	93,192	94,073
Held-to-maturity Securities, Fair Value	91,874	94,913
Mortgage servicing rights	1,840	1,766
Financial liabilities:
Time deposits	532,244	512,483
Short-term Debt, Fair Value	552,289	541,605
Long-term Debt, Fair Value	10,658	10,777
Subordinated debentures	45,588	44,333
Residential Real Estate
Financial assets:
Loans receivable, net of allowance	842,132	853,056
Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,119,406	1,115,618
Commercial
Financial assets:
Loans receivable, net of allowance	404,925	401,902
Home Equity
Financial assets:
Loans receivable, net of allowance	311,142	318,230
Consumer
Financial assets:
Loans receivable, net of allowance	16,880	17,335
Readily Available Market Prices (Level 1)
Financial assets:
Held-to-maturity Securities, Fair Value	0	0
Mortgage servicing rights	0	0
Financial liabilities:
Time deposits	0	0
Short-term Debt, Fair Value	0	0
Long-term Debt, Fair Value	0	0
Subordinated debentures	0	0
Readily Available Market Prices (Level 1) | Residential Real Estate
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) | Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) | Commercial
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) | Home Equity
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) | Consumer
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2)
Financial assets:
Held-to-maturity Securities, Fair Value	91,874	94,913
Mortgage servicing rights	0	0
Financial liabilities:
Time deposits	532,244	512,483
Short-term Debt, Fair Value	552,289	541,605
Long-term Debt, Fair Value	10,658	10,777
Subordinated debentures	45,588	44,333
Observable Market Data (Level 2) | Residential Real Estate
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) | Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) | Commercial
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) | Home Equity
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) | Consumer
Financial assets:
Loans receivable, net of allowance	0	0
Company Determined Fair Value (Level 3)
Financial assets:
Held-to-maturity Securities, Fair Value	0	0
Mortgage servicing rights	1,840	1,766
Financial liabilities:
Time deposits	0	0
Short-term Debt, Fair Value	0	0
Long-term Debt, Fair Value	0	0
Subordinated debentures	0	0
Company Determined Fair Value (Level 3) | Residential Real Estate
Financial assets:
Loans receivable, net of allowance	842,132	853,056
Company Determined Fair Value (Level 3) | Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,119,406	1,115,618
Company Determined Fair Value (Level 3) | Commercial
Financial assets:
Loans receivable, net of allowance	404,925	401,902
Company Determined Fair Value (Level 3) | Home Equity
Financial assets:
Loans receivable, net of allowance	311,142	318,230
Company Determined Fair Value (Level 3) | Consumer
Financial assets:
Loans receivable, net of allowance	16,880	17,335
Carrying Amount
Financial assets:
Held-to-maturity securities, at amortized cost	93,192	94,073
Mortgage servicing rights	972	1,025
Financial liabilities:
Time deposits	538,957	517,032
Short-term Debt, Fair Value	552,624	541,796
Long-term Debt, Fair Value	10,773	10,791
Subordinated debentures	58,950	58,911
Carrying Amount | Residential Real Estate
Financial assets:
Loans receivable, net of allowance	855,036	853,283
Carrying Amount | Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,159,247	1,152,160
Carrying Amount | Commercial
Financial assets:
Loans receivable, net of allowance	415,879	413,898
Carrying Amount | Home Equity
Financial assets:
Loans receivable, net of allowance	318,215	321,011
Carrying Amount | Consumer
Financial assets:
Loans receivable, net of allowance	$ 17,781	$ 17,916

XML

FAIR VALUE MEASUREMENT AND DISCLOSURE (Narrative) (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 11,225,000	$ 13,590,000	$ 20,128,000
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, Individually Evaluated for Impairment		$ 250,000
Substandard [Member] | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 500,000

XML

COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Narrative) (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2018 USD ($) derivative swap	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($) derivative
Other Commitments [Line Items]
Loss Contingency Accrual	$ 0		$ 0
Loss on Cash Flow Hedge Ineffectiveness	$ 0		0
Derivative, Number of Instruments Held | derivative	2
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	$ 693,000
Unrealized Gain (Loss) on Derivatives	(12,000)	$ (12,000)
Interest rate swaps
Other Commitments [Line Items]
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges	275,000	346,000
Notional amount of derivative	43,000,000		43,000,000
Cash held as collateral	6,000,000
Forward-Starting Interest Rate Swap
Other Commitments [Line Items]
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges	9,000	109,000
Notional amount of derivative	25,000,000		50,000,000
Cash held as collateral	10,400,000
Forward Contracts [Member]
Other Commitments [Line Items]
Notional amount of derivative	9,502,000		$ 8,065,000
Unrealized Gain (Loss) on Derivatives	$ 19,000	$ 118,000
Federal home loan bank 30-day | Interest rate swaps
Other Commitments [Line Items]
Derivative, Number of Instruments Held | derivative	6		23
Notional amount of derivative	$ 19,763,000		$ 124,784,000
Commercial and Industrial Sector [Member] | Interest rate swaps
Other Commitments [Line Items]
Derivative, Number of Instruments Held | derivative	69		65
Notional amount of derivative	$ 354,158,000		$ 351,668,000
Contract One [Member] | Interest rate swaps
Other Commitments [Line Items]
Notional amount of derivative	$ 10,000,000
Contract One [Member] | Forward-Starting Interest Rate Swap
Other Commitments [Line Items]
Number of interest rate swap agreements | swap	1
Notional amount of derivative	$ 25,000,000

XML

COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Summary of Contractual and Notional Amounts of Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Customer Loan Swaps
Financial Instruments [Line Items]
Notional amount of derivative	$ 708,316	$ 703,336
Forward-Starting Interest Rate Swap
Financial Instruments [Line Items]
Notional amount of derivative	25,000	50,000
Interest rate swaps
Financial Instruments [Line Items]
Notional amount of derivative	43,000	43,000
Interest rate lock commitments
Financial Instruments [Line Items]
Notional amount of derivative	24,753	21,746
Forward Contracts [Member]
Financial Instruments [Line Items]
Notional amount of derivative	9,502	8,065
Other Commitments
Financial Instruments [Line Items]
Notional amount of derivative	1,151	523
Letters of Credit
Financial Instruments [Line Items]
Notional amount of derivative	3,426	2,848
Home Equity
Financial Instruments [Line Items]
Notional amount of derivative	501,127	477,401
Commercial and commercial real estate
Financial Instruments [Line Items]
Notional amount of derivative	31,667	49,482
Residential
Financial Instruments [Line Items]
Notional amount of derivative	$ 36,352	$ 41,368

XML

COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Schedule of Swapped Variable Cost for Fixed Cost and Terms of Interest Rate Swap Agreements) (Details) - USD ($)		3 Months Ended	12 Months Ended
		Mar. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Derivative, fair value		$ 123,000	$ 142,000
Loss on Cash Flow Hedge Ineffectiveness		0	0
Interest rate swaps
Derivative [Line Items]
Notional Amount		43,000,000	43,000,000
Derivative, fair value	[1]	5,877,000	7,571,000
Interest rate swaps | Contract, One
Derivative [Line Items]
Notional Amount		$ 10,000,000
Trade Date		Mar. 18, 2009
Maturity Date		Jun. 30, 2021
Variable Index Received		3 months
Fixed Rate Paid		5.09%
Derivative, fair value	[1]	$ 343,000	527,000
Interest rate swaps | Contract, Two
Derivative [Line Items]
Notional Amount		$ 10,000,000
Trade Date		Jul. 08, 2009
Maturity Date		Jun. 30, 2029
Variable Index Received		3 months
Fixed Rate Paid		5.84%
Derivative, fair value	[1]	$ 1,695,000	2,133,000
Interest rate swaps | Contract, Three
Derivative [Line Items]
Notional Amount		$ 10,000,000
Trade Date		May 06, 2010
Maturity Date		Jun. 30, 2030
Variable Index Received		3 months
Fixed Rate Paid		5.71%
Derivative, fair value	[1]	$ 1,671,000	2,129,000
Interest rate swaps | Contract, Four
Derivative [Line Items]
Notional Amount		$ 5,000,000
Trade Date		Mar. 14, 2011
Maturity Date		Mar. 30, 2031
Variable Index Received		3 months
Fixed Rate Paid		4.35%
Derivative, fair value	[1]	$ 899,000	1,137,000
Interest rate swaps | Contract, Five
Derivative [Line Items]
Notional Amount		$ 8,000,000
Trade Date		May 04, 2011
Maturity Date		Jul. 07, 2031
Variable Index Received		3 months
Fixed Rate Paid		4.14%
Derivative, fair value	[1]	$ 1,269,000	1,645,000
Forward-Starting Interest Rate Swap
Derivative [Line Items]
Notional Amount		25,000,000	50,000,000
Derivative, fair value	[2]	85,000	21,000
Forward-Starting Interest Rate Swap | Contract, One
Derivative [Line Items]
Notional Amount		$ 25,000,000
Trade Date		Feb. 25, 2015
Maturity Date		Feb. 25, 2018
Variable Index Received		1 month
Fixed Rate Paid		1.54%
Derivative, fair value	[2]	$ 0	20,000
Forward-Starting Interest Rate Swap | Contract, Two
Derivative [Line Items]
Notional Amount		$ 25,000,000
Trade Date		Feb. 25, 2015
Maturity Date		Feb. 25, 2019
Variable Index Received		1 month
Fixed Rate Paid		1.74%
Derivative, fair value	[2]	$ 85,000	$ 1,000

[1] Presented within accrued interest and other liabilities on the consolidated statements of condition.

[2] Presented within accrued interest and other liabilities on the consolidated statements of condition.

XML

COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Schedule of customer loan swaps) (Details) $ in Thousands		Mar. 31, 2018 USD ($) derivative	Dec. 31, 2017 USD ($) derivative
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		2
Derivative, fair value		$ 123	$ 142
Interest rate swaps
Derivative [Line Items]
Notional amount of derivative		43,000	43,000
Derivative, fair value	[1]	$ 5,877	$ 7,571
Interest rate swaps | Federal home loan bank 30-day
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		6	23
Notional amount of derivative		$ 19,763	$ 124,784
Derivative, fair value		402	1,799
Forward-Starting Interest Rate Swap
Derivative [Line Items]
Notional amount of derivative		25,000	50,000
Derivative, fair value	[2]	$ 85	$ 21
Commercial and Industrial Sector [Member] | Interest rate swaps
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		69	65
Notional amount of derivative		$ 354,158	$ 351,668
Derivative, fair value		$ 10,305	$ 3,237
Loans [Member] | Interest rate swaps
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		138	130
Notional amount of derivative		$ 708,316	$ 703,336
Derivative, fair value		$ 0	$ 0
Other Liabilities [Member] | Interest rate swaps | Federal home loan bank 30-day
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		63	42
Notional amount of derivative		$ 334,395	$ 226,884
Derivative, fair value		$ (10,707)	$ (5,036)

[1] Presented within accrued interest and other liabilities on the consolidated statements of condition.

[2] Presented within accrued interest and other liabilities on the consolidated statements of condition.

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COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Schedule of interest rate lock commitments) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Other Commitments [Line Items]
Derivative, Fair Value, Net	$ 123	$ 142
Interest Rate Lock Commitments
Other Commitments [Line Items]
Notional amount of derivative	24,753	21,746
Derivative Asset, Fair Value, Gross Asset	308	307
Derivative Liability, Fair Value, Gross Liability	(35)	(22)
Derivative, Fair Value, Net	273	285
Other Assets [Member] | Interest Rate Lock Commitments
Other Commitments [Line Items]
Notional amount of derivative	20,374	19,886
Other Liabilities [Member] | Interest Rate Lock Commitments
Other Commitments [Line Items]
Notional amount of derivative	$ 4,379	$ 1,860

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COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Schedule of Derivatives Effects on OCI) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross	$ 64	$ 455

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COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Schedule of forward loan sale commitments) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Other Commitments [Line Items]
Derivative, Fair Value, Net	$ 123	$ 142
Forward Contracts [Member]
Other Commitments [Line Items]
Notional amount of derivative	9,502	8,065
Derivative Asset, Fair Value, Gross Asset	145	158
Derivative Liability, Fair Value, Gross Liability	(22)	(16)
Derivative, Fair Value, Net	123	142
Forward Contracts [Member] | Other Assets [Member]
Other Commitments [Line Items]
Notional amount of derivative	8,155	6,692
Forward Contracts [Member] | Other Liabilities [Member]
Other Commitments [Line Items]
Notional amount of derivative	1,347	1,373
Interest Rate Lock Commitments [Member]
Other Commitments [Line Items]
Notional amount of derivative	24,753	21,746
Derivative Asset, Fair Value, Gross Asset	308	307
Derivative Liability, Fair Value, Gross Liability	(35)	(22)
Derivative, Fair Value, Net	273	285
Interest Rate Lock Commitments [Member] | Other Assets [Member]
Other Commitments [Line Items]
Notional amount of derivative	20,374	19,886
Interest Rate Lock Commitments [Member] | Other Liabilities [Member]
Other Commitments [Line Items]
Notional amount of derivative	$ 4,379	$ 1,860

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COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Schedule of Derivatives Effect on OCI and Current Earnings) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ 1,328	$ 90
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 64	$ 455