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 September 30, 2017

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 October 27, 2017:  Common stock (no par value) 15,516,049 shares.

CAMDEN NATIONAL CORPORATION

FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 2017

TABLE OF CONTENTS OF INFORMATION REQUIRED IN REPORT

		PAGE
PART I.  FINANCIAL INFORMATION
ITEM 1.	FINANCIAL STATEMENTS
	Consolidated Statements of Condition - September 30, 2017 and December 31, 2016	3
	Consolidated Statements of Income - Three and Nine Months Ended September 30, 2017 and 2016	4
	Consolidated Statements of Comprehensive Income - Three and Nine Months Ended September 30, 2017 and 2016	5
	Consolidated Statements of Changes in Shareholders’ Equity - Nine Months Ended September 30, 2017 and 2016	6
	Consolidated Statements of Cash Flows - Nine Months Ended September 30, 2017 and 2016	7
	Notes to the Unaudited Consolidated Financial Statements	8
ITEM 2.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	45
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK	63
ITEM 4.	CONTROLS AND PROCEDURES	65
PART II. OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS	66
ITEM 1A.	RISK FACTORS	66
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	66
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	66
ITEM 4.	MINE SAFETY DISCLOSURES	66
ITEM 5.	OTHER INFORMATION	66
ITEM 6.	EXHIBITS	67
SIGNATURES		68

2

PART I. FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

CONSOLIDATED STATEMENTS OF CONDITION (unaudited)
(In thousands, except number of shares)	September 30,  2017			December 31,  2016
ASSETS
Cash and due from banks	$	89,435		$	87,707
Investments:
Available-for-sale securities, at fair value	797,251			779,867
Held-to-maturity securities, at amortized cost	94,207			94,609
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	24,560			23,203
Total investments	916,018			897,679
Loans held for sale, at fair value	12,997			14,836
Loans	2,748,290			2,594,564
Less: allowance for loan losses	(24,413		)	(23,116		)
Net loans	2,723,877			2,571,448
Goodwill	94,697			94,697
Other intangible assets	5,347			6,764
Bank-owned life insurance	86,869			78,119
Premises and equipment, net	42,422			42,873
Deferred tax assets	36,344			39,263
Other assets	31,937			30,844
Total assets	$	4,039,943		$	3,864,230
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities
Deposits:
Demand	$	476,386		$	406,934
Interest checking	758,568			701,494
Savings and money market	976,246			979,263
Certificates of deposit	498,965			468,203
Brokered deposits	246,248			272,635
Total deposits	2,956,413			2,828,529
Short-term borrowings	538,997			530,129
Long-term borrowings	10,738			10,791
Subordinated debentures	58,872			58,755
Accrued interest and other liabilities	60,557			44,479
Total liabilities	3,625,577			3,472,683
Commitments and Contingencies
Shareholders’ Equity
Common stock, no par value: authorized 40,000,000 shares, issued and outstanding 15,515,577 and 15,476,379 on September 30, 2017 and December 31, 2016, respectively	156,561			156,041
Retained earnings	270,316			249,415
Accumulated other comprehensive loss:
Net unrealized losses on available-for-sale securities, net of tax	(5,165		)	(6,085		)
Net unrealized losses on cash flow hedging derivative instruments, net of tax	(5,344		)	(5,694		)
Net unrecognized losses on postretirement plans, net of tax	(2,002		)	(2,130		)
Total accumulated other comprehensive loss	(12,511		)	(13,909		)
Total shareholders’ equity	414,366			391,547
Total liabilities and shareholders’ equity	$	4,039,943		$	3,864,230

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

3

CONSOLIDATED STATEMENTS OF INCOME (unaudited)
	Three Months Ended   September 30,				Nine Months Ended   September 30,
(In thousands, except number of shares and per share data)	2017		2016		2017		2016
Interest Income
Interest and fees on loans	$	29,350	$	27,395	$	84,835	$	82,117
Interest on U.S. government and sponsored enterprise obligations	4,177		4,049		12,788		12,055
Interest on state and political subdivision obligations	686		702		2,079		2,127
Interest on federal funds sold and other investments	497		448		1,362		1,051
Total interest income	34,710		32,594		101,064		97,350
Interest Expense
Interest on deposits	3,027		2,204		8,568		6,355
Interest on borrowings	1,665		1,161		4,302		3,610
Interest on subordinated debentures	858		857		2,553		2,557
Total interest expense	5,550		4,222		15,423		12,522
Net interest income	29,160		28,372		85,641		84,828
Provision for credit losses	817		1,279		2,797		5,003
Net interest income after provision for credit losses	28,343		27,093		82,844		79,825
Non-Interest Income
Debit card income	2,061		1,894		5,887		5,650
Service charges on deposit accounts	1,852		1,799		5,632		5,356
Mortgage banking income, net	2,076		2,407		5,566		4,921
Income from fiduciary services	1,229		1,225		3,831		3,736
Bank-owned life insurance	603		585		1,750		1,899
Brokerage and insurance commissions	600		594		1,601		1,569
Other service charges and fees	589		591		1,558		1,494
Net gain on sale of securities	827		—		827		4
Other income	462		1,906		2,107		4,841
Total non-interest income	10,299		11,001		28,759		29,470
Non-Interest Expense
Salaries and employee benefits	12,359		12,044		36,882		35,634
Furniture, equipment and data processing	2,429		2,349		7,204		7,157
Net occupancy costs	1,599		1,685		5,234		5,352
Consulting and professional fees	714		742		2,412		2,609
Debit card expense	662		669		2,034		2,107
Regulatory assessments	574		667		1,607		2,162
Amortization of intangible assets	473		475		1,417		1,427
Other real estate owned and collection costs, net	258		877		558		2,029
Merger and acquisition costs	—		45		—		866
Other expenses	2,757		2,596		8,063		8,045
Total non-interest expense	21,825		22,149		65,411		67,388
Income before income tax expense	16,817		15,945		46,192		41,907
Income tax expense	5,478		5,042		14,543		12,742
Net Income	$	11,339	$	10,903	$	31,649	$	29,165
Per Share Data
Basic earnings per share	$	0.72	$	0.70	$	2.03	$	1.88
Diluted earnings per share	$	0.72	$	0.70	$	2.02	$	1.88
Weighted average number of common shares outstanding	15,515,189		15,425,452		15,505,698		15,410,310
Diluted weighted average number of common shares outstanding	15,589,008		15,507,561		15,580,072		15,483,320

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

4

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited)
	Three Months Ended   September 30,						Nine Months Ended   September 30,
(In thousands)	2017			2016			2017			2016
Net Income	$	11,339		$	10,903		$	31,649		$	29,165
Other comprehensive income (loss):
Net change in unrealized gains (losses) on available-for-sale securities:
Net change in unrealized gains (losses) on available-for-sale securities, net of tax of $142, $405, ($784) and ($5,599), respectively	(262		)	(752		)	1,458			10,399
Net reclassification adjustment for net gains included in net income, net of tax of $289, $0, $289 and $1, respectively(1)	(538		)	—			(538		)	(3		)
Net change in unrealized gains (losses) on available-for-sale securities, net of tax	(800		)	(752		)	920			10,396
Net change in unrealized gains (losses) on cash flow hedging derivatives:
Net change in unrealized gains (losses) on cash flow hedging derivatives, net of tax of $43, ($107), $243 and $1,859, respectively	(80		)	199			(452		)	(3,453		)
Net reclassification adjustment for effective portion of cash flow hedges, net of tax of ($128), ($187), ($432) and ($532), respectively(2)	238			347			802			989
Net change in unrealized gains (losses) on cash flow hedging derivatives, net of tax	158			546			350			(2,464		)
Reclassification of amortization of net unrecognized actuarial loss and prior service cost, net of tax of ($23), ($20), ($69) and ($62), respectively(3)	42			39			128			115
Other comprehensive income (loss)	(600		)	(167		)	1,398			8,047
Comprehensive Income	$	10,739		$	10,736		$	33,047		$	37,212

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

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

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

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(1)		Amount			Retained Earnings
Balance at December 31, 2015	15,330,717		$	153,083		$	222,329		$	(12,222	)	$	363,190
Cumulative effect adjustment(2)	—		72			(72		)	—			—
Cash in-lieu, stock split(3)	(173	)	(5		)	—			—			(5		)
Net income	—		—			29,165			—			29,165
Other comprehensive income, net of tax	—		—			—			8,047			8,047
Stock-based compensation expense	—		1,521			—			—			1,521
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings	104,312		593			—			—			593
Cash dividends declared ($0.60 per share)(1)	—		—			(9,330		)	—			(9,330		)
Balance at September 30, 2016	15,434,856		$	155,264		$	242,092		$	(4,175	)	$	393,181
Balance at December 31, 2016	15,476,379		$	156,041		$	249,415		$	(13,909	)	$	391,547
Net income	—		—			31,649			—			31,649
Other comprehensive income, net of tax	—		—			—			1,398			1,398
Stock-based compensation expense	—		1,135			—			—			1,135
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings	39,198		(615		)	—			—			(615		)
Cash dividends declared ($0.69 per share)	—		—			(10,748		)	—			(10,748		)
Balance at September 30, 2017	15,515,577		$	156,561		$	270,316		$	(12,511	)	$	414,366

(1) Share and per share amounts as of December 31, 2015 have been adjusted to reflect the three-for-two stock split effective September 30, 2016.

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

(3) In the third quarter of 2016, the Company paid shareholders cash in-lieu of fractional shares of common stock in connection with the three-for-two stock split effective September 30, 2016.

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

6

CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited)
	Nine Months Ended   September 30,
(In thousands)	2017			2016
Operating Activities
Net Income	$	31,649		$	29,165
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	2,797			5,003
Depreciation and amortization expense	2,789			3,498
Purchase accounting accretion, net	(2,204		)	(3,792		)
Investment securities amortization and accretion, net	2,350			2,234
Stock-based compensation expense	1,135			1,521
Amortization of intangible assets	1,417			1,427
Net gain on sale of investment securities	(827		)	(4		)
Net increase in other real estate owned valuation allowance and gain on disposition	(60		)	(147		)
Originations of mortgage loans held for sale	(148,661		)	(180,182		)
Proceeds from the sale of mortgage loans	155,086			170,765
Gain on sale of mortgage loans, net of origination costs	(4,323		)	(4,171		)
(Increase) decrease in other assets	(82		)	7,533
Increase in other liabilities	1,325			154
Net cash provided by operating activities	42,391			33,004
Investing Activities
Proceeds from the sale and maturity of available-for-sale securities	124,548			105,863
Purchase of available-for-sale securities	(127,684		)	(130,254		)
Purchase of held-to-maturity securities	—			(10,448		)
Net increase in loans	(153,629		)	(101,732		)
Purchase of bank-owned life insurance, net of death benefit proceeds	(7,000		)	(16,122		)
Purchase of Federal Home Loan Bank and Federal Reserve Bank stock	(8,304		)	(7,341		)
Proceeds from sale of Federal Home Loan Bank stock	6,947			5,652
Proceeds from the sale of other real estate owned	641			672
Recoveries of previously charged-off loans	442			381
Purchase of premises and equipment	(2,378		)	(1,507		)
Proceeds from the sale of premises and equipment	137			90
Net cash used by investing activities	(166,280		)	(154,746		)
Financing Activities
Net increase in deposits	128,131			163,563
Net proceeds from borrowings less than 90 days	33,841			36,846
Repayments on Federal Home Loan Bank long-term advances	(20,000		)	(25,000		)
Repayments of wholesale repurchase agreements	(5,000		)	(25,000		)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings	(615		)	593
Cash dividends paid on common stock	(10,740		)	(9,290		)
Net cash provided by financing activities	125,617			141,712
Net increase in cash and cash equivalents	1,728			19,970
Cash and cash equivalents at beginning of period	87,707			79,488
Cash and cash equivalents at end of period	$	89,435		$	99,458
Supplemental information
Interest paid	$	15,383		$	12,673
Unsettled purchases of investment securities	13,954			—
Income taxes paid	11,559			4,844
Transfer from loans to other real estate owned	—			32
Measurement-period adjustments	—			960

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 September 30, 2017 and December 31, 2016, the consolidated statements of income for the three and nine months ended September 30, 2017 and 2016, the consolidated statements of comprehensive income for the three and nine months ended September 30, 2017 and 2016, the consolidated statements of changes in shareholders' equity for the nine months endedSeptember 30, 2017 and 2016, and the consolidated statements of cash flows for the nine months endedSeptember 30, 2017 and 2016. 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 and nine months ended September 30, 2017 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, 2016 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	GAAP:	Generally accepted accounting principles in the United States
ALCO:	Asset/Liability Committee	HPFC:	Healthcare Professional Funding Corporation, a wholly-owned subsidiary of Camden National Bank
ALL:	Allowance for loan losses	HTM:	Held-to-maturity
AOCI:	Accumulated other comprehensive income (loss)	IRS:	Internal Revenue Service
ASC:	Accounting Standards Codification	LIBOR:	London Interbank Offered Rate
ASU:	Accounting Standards Update	LTIP:	Long-Term Performance Share Plan
Bank:	Camden National Bank, a wholly-owned subsidiary of Camden National Corporation	Management ALCO:	Management Asset/Liability Committee
Board ALCO:	Board of Directors' Asset/Liability Committee	MBS:	Mortgage-backed security
BOLI:	Bank-owned life insurance	MSRs:	Mortgage servicing rights
BSA:	Bank Secrecy Act	MSPP:	Management Stock Purchase Plan
CCTA:	Camden Capital Trust A, an unconsolidated entity formed by Camden National Corporation	OTTI:	Other-than-temporary impairment
CDARS:	Certificate of Deposit Account Registry System	NIM:	Net interest margin on a fully-taxable basis
CDs:	Certificate of deposits	N.M.:	Not meaningful
CMO:	Collateralized mortgage obligation	OCC:	Office of the Comptroller of the Currency
CNWM:	Camden National Wealth Management, a division of Camden National Bank	OCI:	Other comprehensive income (loss)
Company:	Camden National Corporation	OFAC:	Office of Foreign Assets Control
DCRP:	Defined Contribution Retirement Plan	OREO:	Other real estate owned
EPS:	Earnings per share	SERP:	Supplemental executive retirement plans
FASB:	Financial Accounting Standards Board	TDR:	Troubled-debt restructured loan
FDIC:	Federal Deposit Insurance Corporation	UBCT:	Union Bankshares Capital Trust I, an unconsolidated entity formed by Union Bankshares Company that was subsequently acquired by Camden National Corporation
FHLB:	Federal Home Loan Bank	U.S.:	United States of America
FHLBB:	Federal Home Loan Bank of Boston	USD:	United States Dollar
FRB:	Board of Governors of the Federal Reserve System	2003 Plan:	2003 Stock Option and Incentive Plan
FRBB:	Federal Reserve Bank of Boston	2012 Plan:	2012 Equity and Incentive Plan
Freddie Mac:	Federal Home Loan Mortgage Corporation	2013 Repurchase Program:	2013 Common Stock Repurchase Program, approved by the Company's Board of Directors

9

NOTE 2 – 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   September 30,						Nine Months Ended   September 30,
	2017			2016			2017			2016
Net income	$	11,339		$	10,903		$	31,649		$	29,165
Dividends and undistributed earnings allocated to participating securities(1)	(46		)	(54		)	(134		)	(134		)
Net income available to common shareholders	$	11,293		$	10,849		$	31,515		$	29,031
Weighted-average common shares outstanding for basic EPS	15,515,189			15,425,452			15,505,698			15,410,310
Dilutive effect of stock-based awards(2)	73,819			82,109			74,374			73,010
Weighted-average common and potential common shares for diluted EPS	15,589,008			15,507,561			15,580,072			15,483,320
Earnings per common share(1):
Basic EPS	$	0.72		$	0.70		$	2.03		$	1.88
Diluted EPS	$	0.72		$	0.70		$	2.02		$	1.88
Awards excluded from the calculation of diluted EPS(3):
Stock options	—			—			—			18,375

(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.

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

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

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

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

10

NOTE 3 – SECURITIES

The following tables summarize 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
September 30, 2017
AFS Securities:
Obligations of states and political subdivisions	$	7,233	$	132	$	—		$	7,365
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	524,763		961		(4,620		)	521,104
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	267,096		131		(4,837		)	262,390
Subordinated corporate bonds	5,483		168		—			5,651
Total AFS debt securities	804,575		1,392		(9,457		)	796,510
Equity securities	623		118		—			741
Total AFS securities	$	805,198	$	1,510	$	(9,457	)	$	797,251
HTM Securities:
Obligations of states and political subdivisions	$	94,207	$	1,169	$	(282	)	$	95,094
Total HTM securities	$	94,207	$	1,169	$	(282	)	$	95,094
December 31, 2016
AFS Securities:
Obligations of states and political subdivisions	$	8,848	$	153	$	—		$	9,001
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	485,222		2,515		(7,115		)	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	289,046		265		(5,421		)	283,890
Subordinated corporate bonds	5,481		132		—			5,613
Total AFS debt securities	788,597		3,065		(12,536		)	779,126
Equity securities	632		109		—			741
Total AFS securities	$	789,229	$	3,174	$	(12,536	)	$	779,867
HTM Securities:
Obligations of states and political subdivisions	$	94,609	$	618	$	(631	)	$	94,596
Total HTM securities	$	94,609	$	618	$	(631	)	$	94,596

Net unrealized losses on AFS securities at September 30, 2017 included in AOCI amounted to $5.2 million, net of a deferred tax benefit of $2.7 million. Net unrealized losses on AFS securities at December 31, 2016 included in AOCI amounted to $6.1 million, net of a deferred tax benefit of $3.3 million.

During the first nine months of 2017, the Company purchased investment securities totaling $141.6 million, all of which were designated as AFS securities.

During the first nine months of 2016, the Company purchased investment securities totaling $140.7 million. The Company designated $130.3 million as AFS securities and $10.4 million as HTM securities.

Impaired Securities

Management periodically reviews the Company’s investment portfolio to determine the cause, magnitude and duration of declines in the fair value of each security. Thorough evaluations of the causes of the unrealized losses are performed to determine whether the impairment is temporary or other-than-temporary in nature. Considerations such as the ability of the securities to meet cash flow requirements, levels of credit enhancements, risk of curtailment, and recoverability of invested

11

amount over a reasonable period of time, and the length of time the security is in a loss position, for example, are applied in determining OTTI. Once a decline in value is determined to be other-than-temporary, the cost basis of the security is permanently reduced and a corresponding charge to earnings is recognized.

The following table presents the estimated fair values and gross unrealized losses of investment securities that were in a continuous loss position at September 30, 2017 and December 31, 2016, by length of time that individual securities in each category have been in a continuous loss position:  

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
September 30, 2017
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	345,629	$	(3,127	)	$	47,553	$	(1,493	)	$	393,182	$	(4,620	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	134,761		(1,579		)	88,177		(3,258		)	222,938		(4,837		)
Total AFS securities	$	480,390	$	(4,706	)	$	135,730	$	(4,751	)	$	616,120	$	(9,457	)
HTM Securities:
Obligations of states and political subdivisions	$	15,234	$	(193	)	$	2,361	$	(89	)	$	17,595	$	(282	)
Total HTM securities	$	15,234	$	(193	)	$	2,361	$	(89	)	$	17,595	$	(282	)
December 31, 2016
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	348,579	$	(5,780	)	$	29,496	$	(1,335	)	$	378,075	$	(7,115	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	163,412		(2,906		)	74,212		(2,515		)	237,624		(5,421		)
Total AFS securities	$	511,991	$	(8,686	)	$	103,708	$	(3,850	)	$	615,699	$	(12,536	)
HTM Securities:
Obligations of states and political subdivisions	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)
Total HTM securities	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)

At September 30, 2017 and December 31, 2016, the Company held 177 and 209 investment securities with a fair value of $633.7 million and $658.5 million that were in an unrealized loss position totaling $9.7 million and $13.2 million, respectively, that were considered temporary. Of these, MBS and CMOs with a fair value of $135.7 million and $103.7 million were in an unrealized loss position, and have been in an unrealized loss position for 12 months or more, totaling $4.8 million and $3.9 million at September 30, 2017 and December 31, 2016, respectively. The unrealized loss was reflective of current interest rates in excess of the yield received on investments and is not indicative of an overall change in credit quality or other factors with the Company's investment portfolio. At September 30, 2017 and December 31, 2016, gross unrealized losses on the Company's AFS and HTM securities were 1.5% and 2.0%, respectively, of the respective investment securities fair value.

The Company has the intent and ability to retain its investment securities in an unrealized loss position at September 30, 2017 until the decline in value has recovered.

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Sale of Securities

The following table details the Company's sales of AFS securities for the period indicated below:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
Proceeds from sales of securities	$	20,269		$	—	$	20,269		$	84
Gross realized gains	841			—		841			4
Gross realized losses	(14		)	—		(14		)	—

For the three and nine months ended September 30, 2017, the Company sold certain AFS securities with a total amortized cost of $19.4 million and recorded net gains on the sale of AFS securities of $827,000 within non-interest income in the consolidated statements of income. The Company had not previously recorded any OTTI on these securities sold.

For the nine months ended September 30, 2016, the Company sold certain AFS securities with a total amortized cost of $80,000 and recorded net gains on the sale of AFS securities of $4,000 within non-interest income in the consolidated statements of income. The Company had not previously recorded any OTTI on these securities sold.

The cost basis of securities sold is measured on a specific identification basis.

FHLBB and FRB Stock

As of September 30, 2017 and December 31, 2016, the Company's investment in FHLBB stock was $19.2 million and $17.8 million, respectively. As of September 30, 2017 and December 31, 2016, the Company's investment in FRB stock was $5.4 million.

Securities Pledged

At September 30, 2017 and December 31, 2016, securities with an amortized cost of $714.0 million and $597.3 million and estimated fair values of $707.2 million and $589.7 million, respectively, were pledged to secure FHLBB advances, public deposits, and securities sold under agreements to repurchase and for other purposes required or permitted by law.

Contractual Maturities

The amortized cost and estimated fair values of debt securities by contractual maturity at September 30, 2017, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. 

	Amortized Cost		Fair Value
AFS Securities
Due in one year or less	$	1,581	$	1,585
Due after one year through five years	100,951		100,901
Due after five years through ten years	176,090		175,368
Due after ten years	525,953		518,656
	$	804,575	$	796,510
HTM Securities
Due in one year or less	$	754	$	757
Due after one year through five years	4,737		4,798
Due after five years through ten years	7,011		7,121
Due after ten years	81,705		82,418
	$	94,207	$	95,094

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NOTE 4 – LOANS AND ALLOWANCE FOR LOAN LOSSES

The composition of the Company’s loan portfolio, excluding residential loans held for sale, at September 30, 2017 and December 31, 2016 was as follows:   

	September 30, 2017		December 31, 2016
Residential real estate	$	852,851	$	802,494
Commercial real estate	1,131,883		1,050,780
Commercial	369,155		333,639
Home equity	328,328		329,907
Consumer	18,123		17,332
HPFC	47,950		60,412
Total loans	$	2,748,290	$	2,594,564

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

	September 30, 2017			December 31, 2016
Net unamortized fair value mark discount on acquired loans	$	6,782		$	8,810
Net unamortized loan origination costs	(612		)	(66		)
Total	$	6,170		$	8,744

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

The HPFC loan portfolio consists of niche commercial lending to the small business medical field, including dentists, optometrists and veterinarians across the U.S. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the success of the borrower's business. Effective February 19, 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.

Effective January 1, 2017, the Company's internal policy for assessing individual loans for impairment was changed to increase the principal balance threshold for a loan from $250,000 to $500,000. The qualitative factors for assessing a loan individually for impairment in accordance with the Company's internal policy were unchanged, and continue to require the loan to be classified as substandard or doubtful and on non-accrual status. There were no other significant changes in the Company's ALL methodology during the nine months ended September 30, 2017.

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. The Company's Credit Risk Administration and the Credit Risk Policy Committee oversee the systems and procedures to monitor the credit

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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, effective February 19, 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 and nine months ended September 30, 2017 and 2016, and for the year ended December 31, 2016: 

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Three and Nine Months Ended September 30, 2017
ALL for the three months ended:
Beginning balance	$	4,481		$	12,848		$	4,275		$	2,094		$	182		$	514		$	24,394
Loans charged off	(238		)	(69		)	(369		)	(11		)	(28		)	(193		)	(908		)
Recoveries	26			25			59			1			9			5			125
Provision (credit)(1)	273			(8		)	256			93			32			156			802
Ending balance	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
ALL for the nine months ended:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans charged off	(433		)	(81		)	(650		)	(403		)	(90		)	(274		)	(1,931		)
Recoveries	30			138			254			2			13			5			442
Provision(1)	785			585			862			384			91			79			2,786
Ending balance	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
ALL balance attributable to loans:
Individually evaluated for impairment	$	464		$	1,470		$	—		$	—		$	—		$	—		$	1,934
Collectively evaluated for impairment	4,078			11,326			4,221			2,177			195			482			22,479
Total ending ALL	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
Loans:
Individually evaluated for impairment	$	4,792		$	6,373		$	1,842		$	423		$	—		$	—		$	13,430
Collectively evaluated for impairment	848,059			1,125,510			367,313			327,905			18,123			47,950			2,734,860
Total ending loans balance	$	852,851		$	1,131,883		$	369,155		$	328,328		$	18,123		$	47,950		$	2,748,290
For The Three and Nine Months Ended September 30, 2016
ALL for the three months ended:
Beginning balance	$	4,431		$	11,559		$	4,558		$	2,946		$	193		$	30		$	23,717
Loans charged off	—			(32		)	(1,541		)	(44		)	(19		)	(205		)	(1,841		)
Recoveries	1			7			118			—			1			—			127
Provision (credit)(1)	163			1,046			148			(335		)	(13		)	278			1,287
Ending balance	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
ALL for the nine months ended:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	21,166
Loans charged off	(229		)	(273		)	(1,970		)	(229		)	(60		)	(507		)	(3,268		)
Recoveries	72			50			252			2			5			—			381
Provision(1)	207			2,371			1,760			63			24			586			5,011
Ending balance	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
ALL balance attributable to loans:
Individually evaluated for impairment	$	511		$	1,284		$	—		$	88		$	—		$	74		$	1,957
Collectively evaluated for impairment	4,084			11,296			3,283			2,479			162			29			21,333
Total ending ALL	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
Loans:
Individually evaluated for impairment	$	4,551		$	13,286		$	2,243		$	489		$	7		$	106		$	20,682
Collectively evaluated for impairment	792,485			1,041,021			322,179			332,606			17,409			65,627			$	2,571,327
Total ending loans balance	$	797,036		$	1,054,307		$	324,422		$	333,095		$	17,416		$	65,733		$	2,592,009

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	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Year Ended December 31, 2016
ALL:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	21,166
Loans charged off	(356		)	(315		)	(2,218		)	(308		)	(101		)	(507		)	(3,805		)
Recoveries	95			50			332			2			7			—			486
Provision (credit)(1)	(124		)	1,987			2,400			(231		)	82			1,155			5,269
Ending balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
ALL balance attributable to loans:
Individually evaluated for impairment	$	483		$	1,373		$	—		$	86		$	—		$	65		$	2,007
Collectively evaluated for impairment	3,677			10,781			3,755			2,108			181			607			21,109
Total ending ALL	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans:
Individually evaluated for impairment	$	4,348		$	13,317		$	2,028		$	457		$	7		$	97		$	20,254
Collectively evaluated for impairment	798,146			1,037,463			331,611			329,450			17,325			60,315			2,574,310
Total ending loans balance	$	802,494		$	1,050,780		$	333,639		$	329,907		$	17,332		$	60,412		$	2,594,564

(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 September 30, 2017 and 2016, and December 31, 2016, the reserve for unfunded commitments was $22,000, $14,000 and $11,000, respectively.

The following reconciles the three and nine months ended September 30, 2017 and 2016, and year ended December 31, 2016 provision for loan losses to the provision for credit losses as presented on the consolidated statement of income:

	Three Months Ended   September 30,					Nine Months Ended   September 30,					Year Ended December 31, 2016
	2017		2016			2017		2016
Provision for loan losses	$	802	$	1,287		$	2,786	$	5,011		$	5,269
Change in reserve for unfunded commitments	15		(8		)	11		(8		)	(11		)
Provision for credit losses	$	817	$	1,279		$	2,797	$	5,003		$	5,258

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 September 30, 2017, the non-residential building operators' industry exposure was 11% of the Company's total loan portfolio and 27% of the total commercial real estate portfolio. There were no other industry exposures exceeding 10% of the Company's total loan portfolio as of September 30, 2017.

To further identify loans with similar risk profiles, the Company categorizes each portfolio segment into classes by credit risk characteristic and applies a credit quality indicator to each portfolio segment. The indicators for commercial, commercial real estate, 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:

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• 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
September 30, 2017
Pass (Grades 1-6)	$	841,539	$	1,086,856	$	361,343	$	—	$	—	$	45,920	$	2,335,658
Performing	—		—		—		326,702		18,123		—		344,825
Special Mention (Grade 7)	933		16,663		1,770		—		—		209		19,575
Substandard (Grade 8)	10,379		28,364		4,645		—		—		1,821		45,209
Doubtful (Grade 9)	—		—		1,397		—		—		—		1,397
Non-performing	—		—		—		1,626		—		—		1,626
Total	$	852,851	$	1,131,883	$	369,155	$	328,328	$	18,123	$	47,950	$	2,748,290
December 31, 2016
Pass (Grades 1-6)	$	789,554	$	1,003,386	$	321,148	$	—	$	—	$	58,943	$	2,173,031
Performing	—		—		—		328,287		17,328		—		345,615
Special Mention (Grade 7)	2,387		5,724		5,598		—		—		257		13,966
Substandard (Grade 8)	10,553		41,670		5,437		—		—		1,212		58,872
Doubtful (Grade 9)	—		—		1,456		—		—		—		1,456
Non-performing	—		—		—		1,620		4		—		1,624
Total	$	802,494	$	1,050,780	$	333,639	$	329,907	$	17,332	$	60,412	$	2,594,564

The Company closely monitors the performance of its loan portfolio. A loan is placed on non-accrual status when the financial condition of the borrower is deteriorating, payment in full of both principal and interest is not expected as scheduled or principal or interest has been in default for 90 days or more. Exceptions may be made if the asset is well-secured by collateral sufficient to satisfy both the principal and accrued interest in full and collection is reasonably assured. When one loan

18

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
September 30, 2017
Residential real estate	$	3,308	$	157	$	3,393	$	6,858	$	845,993	$	852,851	$	—	$	4,465
Commercial real estate	1,036		1,260		5,761		8,057		1,123,826		1,131,883		—		5,887
Commercial	721		—		1,484		2,205		366,950		369,155		—		1,830
Home equity	1,022		284		1,375		2,681		325,647		328,328		—		1,626
Consumer	29		15		—		44		18,079		18,123		—		—
HPFC	646		834		297		1,777		46,173		47,950		—		838
Total	$	6,762	$	2,550	$	12,310	$	21,622	$	2,726,668	$	2,748,290	$	—	$	14,646
December 31, 2016
Residential real estate	$	1,783	$	924	$	2,904	$	5,611	$	796,883	$	802,494	$	—	$	3,945
Commercial real estate	855		223		12,625		13,703		1,037,077		1,050,780		—		12,849
Commercial	633		218		1,675		2,526		331,113		333,639		—		2,088
Home equity	892		134		1,321		2,347		327,560		329,907		—		1,620
Consumer	38		—		4		42		17,290		17,332		—		4
HPFC	438		688		110		1,236		59,176		60,412		—		207
Total	$	4,639	$	2,187	$	18,639	$	25,465	$	2,569,099	$	2,594,564	$	—	$	20,713

Interest income that would have been recognized if loans on non-accrual status had been current in accordance with their original terms was $187,000, $673,000, $251,000, and $675,000 for the three and nine months ended September 30, 2017 and 2016, 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
	September 30, 2017	December 31, 2016	September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016
Residential real estate	25	21	$	3,728	$	3,221	$	464	$	483
Commercial real estate	3	3	987		1,008		19		—
Commercial	8	10	1,393		1,502		—		—
Home equity	2	1	308		16		—		—
Total	38	35	$	6,416	$	5,747	$	483	$	483

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At September 30, 2017, the Company had performing and non-performing TDRs with a recorded investment balance of $5.2 million and $1.3 million, respectively. At December 31, 2016, the Company had performing and non-performing TDRs with a recorded investment balance of $4.3 million and $1.4 million, respectively.

The following represents loan modifications that qualify as TDRs that occurred for the three and nine months ended September 30, 2017 and 2016:

	Number of Contracts		Pre-Modification Outstanding Recorded Investment				Post-Modification Outstanding Recorded Investment				Specific Reserve
	2017	2016	2017		2016		2017		2016		2017		2016
For the three months ended
Commercial:
Maturity concession	—	6	$	—	$	1,344	$	—	$	1,652	$	—	$	—
Residential real estate:
Interest rate concession	1	—	134		—		145		—		—		—
Maturity concession	1	—	147		—		147		—		—		—
Interest rate and maturity concession	1	—	148		—		156		—		29		—
Total	3	6	$	429	$	1,344	$	448	$	1,652	$	29	$	—
For the nine months ended
Commercial:
Maturity concession	—	6	$	—	$	1,344	$	—	$	1,652	$	—	$	—
Residential real estate:
Interest rate concession	1	—	134		—		145		—		—		—
Maturity concession	2	—	298		—		298		—		15		—
Interest rate and maturity concession	1	—	148		—		156		—		29		—
Home equity:
Interest rate and maturity concession	1	—	315		—		315		—		—		—
Total	5	6	$	895	$	1,344	$	914	$	1,652	$	44	$	—

For the three and nine months endedSeptember 30, 2017 and 2016, 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 and nine months ended September 30, 2017 and 2016, and as of and for the year-ended December 31, 2016:

							Three Months Ended					Nine Months Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized(1)			Average Recorded Investment		Interest Income Recognized
September 30, 2017:
With an allowance recorded:
Residential real estate	$	3,262	$	3,262	$	464	$	3,194	$	48		$	3,084	$	103
Commercial real estate	5,589		5,589		1,470		6,590		4			10,048		15
Commercial	—		—		—		82		—			41		—
Home equity	—		—		—		—		—			167		—
Consumer	—		—		—		—		—			—		—
HPFC	—		—		—		—		—			33		—
Ending balance	8,851		8,851		1,934		9,866		52			13,373		118
Without an allowance recorded:
Residential real estate	1,530		1,949		—		1,427		15			1,349		15
Commercial real estate	784		1,032		—		794		15			1,250		22
Commercial	1,842		3,015		—		1,891		(6		)	1,959		8
Home equity	423		482		—		440		1			271		6
Consumer	—		—		—		—		(4		)	3		—
HPFC	—		—		—		—		—			—		—
Ending balance	4,579		6,478		—		4,552		21			4,832		51
Total impaired loans	$	13,430	$	15,329	$	1,934	$	14,418	$	73		$	18,205	$	169
September 30, 2016:
With an allowance recorded:
Residential real estate	$	3,041	$	3,041	$	511	$	3,050	$	56		$	3,108	$	81
Commercial real estate	11,354		11,354		1,284		7,582		—			3,092		—
Commercial	—		—		—		1,782		—			1,016		—
Home equity	302		302		88		303		—			307		—
Consumer	—		—		—		—		—			—		—
HPFC	106		106		74		35		—			97		—
Ending Balance	14,803		14,803		1,957		12,752		56			7,620		81
Without an allowance recorded:
Residential real estate	1,510		1,996		—		1,731		7			2,275		7
Commercial real estate	1,932		2,427		—		2,015		33			2,322		37
Commercial	2,243		4,667		—		1,354		(11		)	2,639		12
Home equity	187		374		—		188		3			181		—
Consumer	7		10		—		7		4			7		—
HPFC	—		—		—		—		—			—		—
Ending Balance	5,879		9,474		—		5,295		36			7,424		56
Total impaired loans	$	20,682	$	24,277	$	1,957	$	18,047	$	92		$	15,044	$	137

(1) Negative interest income represents the re-allocation of income between "with an allowance recorded" and "without an allowance recorded" (or vice versa) during the period.

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							Year Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2016:
With an allowance recorded:
Residential real estate	$	3,019	$	3,019	$	483	$	3,088	$	106
Commercial real estate	11,443		11,443		1,373		5,165		—
Commercial	—		—		—		762		—
Home equity	299		299		86		305		—
Consumer	—		—		—		—		—
HPFC	97		97		65		98		—
Ending Balance	14,858		14,858		2,007		9,418		106
Without an allowance recorded:
Residential real estate	1,329		1,800		—		2,057		9
Commercial real estate	1,874		2,369		—		2,214		51
Commercial	2,028		3,209		—		2,507		16
Home equity	158		368		—		180		—
Consumer	7		10		—		12		—
HPFC	—		—		—		—		—
Ending Balance	5,396		7,756		—		6,970		76
Total impaired loans	$	20,254	$	22,614	$	2,007	$	16,388	$	182

Loan Sales:

For the three and nine months ended September 30, 2017 and 2016, the Company sold $59.9 million, $150.8 million, $71.4 million, and $166.6 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 $1.6 million, $4.3 million, $2.0 million, and $4.2 million, respectively.

At September 30, 2017 and December 31, 2016, the Company had certain residential mortgage loans with a principal balance of $13.0 million and $15.1 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 September 30, 2017 and December 31, 2016, recorded an unrealized loss of $26,000 and $289,000, respectively. For the three and nine months ended September 30, 2017 and 2016, the Company recorded within mortgage banking income, net on its consolidated statements of income the net change in unrealized gains (losses) of $72,000, $263,000, $(55,000), and $99,000, 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 September 30, 2017 and December 31, 2016. The fair value of its forward delivery commitments at September 30, 2017 and December 31, 2016 was $313,000 and $278,000, respectively. For the three months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income was $16,000 and $0, respectively. For the nine months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income was $35,000 and $0, respectively. Refer to Note 12 for further discussion of the Company's forward delivery commitments.

In-Process Foreclosure Proceedings:

At September 30, 2017 and December 31, 2016, the Company had $2.2 million and $1.4 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 September 30, 2017 and December 31, 2016.

Refer to Notes 3 and 10 of the consolidated financial statements for discussion of securities pledged as collateral.

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NOTE 5 – GOODWILL AND OTHER INTANGIBLE ASSETS

The Company has recognized goodwill and certain identifiable intangible assets in connection with certain business combinations in prior years.

Goodwill as of September 30, 2017 and December 31, 2016 for each reporting unit is shown in the table below:

	Goodwill
	Banking		Financial Services			Total
September 30, 2017 and December 31, 2016:
Goodwill, gross	$	90,793	$	7,474		$	98,267
Accumulated impairment losses	—		(3,570		)	(3,570		)
Reported goodwill at September 30, 2017 and December 31, 2016	$	90,793	$	3,904		$	94,697

The changes in core deposit and trust relationship intangible assets for the nine months ended September 30, 2017 are shown in the table below:

	Core Deposit Intangible								Trust Relationship Intangible
	Gross		Accumulated Amortization			Net			Gross		Accumulated Amortization			Net			Total
Balance at December 31, 2016	$	23,908	$	(17,220	)	$	6,688		$	753	$	(677	)	$	76		$	6,764
2017 amortization	—		(1,360		)	(1,360		)	—		(57		)	(57		)	(1,417		)
Balance at September 30, 2017	$	23,908	$	(18,580	)	$	5,328		$	753	$	(734	)	$	19		$	5,347

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

	Core Deposit Intangible		Trust Relationship Intangible		Total
2017	$	375	$	19	$	394
2018	725		—		725
2019	705		—		705
2020	682		—		682
2021	655		—		655
Thereafter	2,186		—		2,186
Total	$	5,328	$	19	$	5,347

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.

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

The Company and Bank's risk-based capital ratios exceeded regulatory guidelines at September 30, 2017 and December 31, 2016, 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 September 30, 2017 that would change the Company or Bank's regulatory capital capitalization. The following table presents the Company and Bank's regulatory capital ratios at the periods indicated:

	September 30, 2017				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions		December 31, 2016				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions
	Amount		Ratio						Amount		Ratio
Camden National Corporation:
Total risk-based capital ratio	$	392,660	14.09	%	9.25	%	N/A		$	368,856	14.04	%	8.63	%	N/A
Tier I risk-based capital ratio	353,225		12.67	%	7.25	%	N/A		330,729		12.59	%	6.63	%	N/A
Common equity Tier I risk-based capital ratio	314,218		11.28	%	5.75	%	N/A		296,120		11.27	%	5.13	%	N/A
Tier I leverage capital ratio	353,225		9.01	%	4.00	%	N/A		330,729		8.83	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	360,174	12.88	%	9.25	%	10.00	%	$	340,908	12.92	%	8.63	%	10.00	%
Tier I risk-based capital ratio	335,739		12.01	%	7.25	%	8.00	%	317,782		12.05	%	6.63	%	8.00	%
Common equity Tier I risk-based capital ratio	335,739		12.01	%	5.75	%	6.50	%	317,782		12.05	%	5.13	%	6.50	%
Tier I leverage capital ratio	335,739		8.60	%	4.00	%	5.00	%	317,782		8.54	%	4.00	%	5.00	%

On October 8, 2015, the Company issued $15.0 million of 10 year subordinated debentures bearing interest at an annual rate of 5.50%. In addition, $43.0 million of junior subordinated debentures were issued in connection with the issuance of trust preferred securities in 2006 and 2008. Although the subordinated debentures and the junior subordinated debentures are recorded as liabilities on the Company's consolidated statements of condition, the Company is permitted, in accordance with regulatory guidelines, to include, subject to certain limits, each within its calculation of risk-based capital. At September 30, 2017 and December 31, 2016, $15.0 million of subordinated debentures were included as Tier II capital and were included in the calculation of the Company's total risk-based capital, and, at September 30, 2017 and December 31, 2016, $43.0 million of the junior subordinated debentures were included in Tier I and total risk-based capital for the Company.

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

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NOTE 7 – INCOME TAXES

The Company's effective income tax rate for the three and nine months ended September 30, 2017 and 2016 was as follows:

	Three Months Ended   September 30,						Nine Months Ended   September 30,
	2017			2016			2017			2016
Income tax expense	$	5,478		$	5,042		$	14,543		$	12,742
Income before income tax expense	$	16,817		$	15,945		$	46,192		$	41,907
Effective tax rate	32.6		%	31.6		%	31.5		%	30.4		%
Discrete period item(s) — impact on effective tax rate:
Windfall tax benefits, net(1)	(0.2		)%	(0.4		)%	(0.4		)%	(1.0		)%
BOLI death benefit income (non-taxable)	—		%	—		%	—		%	(0.3		)%

(1) Represents the net windfall tax benefits generated upon vesting of share-based awards issued and exercise of stock options that were accounted for within income tax expense on the consolidated statements of income as a discrete period item.

During the three months ended September 30, 2017, the IRS completed its examination of the Company's 2013 and 2014 federal income tax returns that resulted in no material changes to the Company's consolidated financial statements.

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 period benefit cost for the periods ended September 30, 2017 and 2016 were as follows:

Supplemental Executive Retirement Plan:

	Three Months Ended   September 30,				Nine Months Ended   September 30,
Net periodic benefit cost	2017		2016		2017		2016
Service cost	$	84	$	77	$	252	$	231
Interest cost	113		108		339		324
Recognized net actuarial loss	61		55		185		165
Recognized prior service cost	—		2		—		6
Net period benefit cost(1)	$	258	$	242	$	776	$	726

(1) Presented within the consolidated statements of income within salaries and employee benefits.

Other Postretirement Benefit Plan:

	Three Months Ended   September 30,						Nine Months Ended   September 30,
Net periodic benefit cost	2017			2016			2017			2016
Service cost	$	13		$	15		$	39		$	45
Interest cost	36			38			108			114
Recognized net actuarial loss	10			8			30			24
Amortization of prior service credit	(6		)	(6		)	(18		)	(18		)
Net period benefit cost(1)	$	53		$	55		$	159		$	165

(1) Presented within the consolidated statements of income within salaries and employee benefits.

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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:

	September 30, 2017		December 31, 2016
Short-Term Borrowings (mature within one year):
Customer repurchase agreements	$	265,627	$	225,605
FHLBB borrowings	270,000		210,000
Overnight borrowings	3,300		89,450
Wholesale repurchase agreements	—		5,007
Capital lease obligation	70		67
Total short-term borrowings	$	538,997	$	530,129
Long-Term Borrowings (maturity greater than one year):
FHLBB borrowings	$	10,000	$	10,000
Capital lease obligation	738		791
Total long-term borrowings	$	10,738	$	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.

27

The table below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings and types of collateral as of September 30, 2017 and December 31, 2016:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
September 30, 2017
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	451	$	—	$	—	$	—	$	451
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	168,103		—		—		—		168,103
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	97,073		—		—		—		97,073
Total Customer Repurchase Agreements	265,627		—		—		—		265,627
Total Wholesale Repurchase Agreements	—		—		—		—		—
Total Repurchase Agreements	$	265,627	$	—	$	—	$	—	$	265,627
December 31, 2016
Customer Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	117,784	$	—	$	—	$	—	$	117,784
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	107,821		—		—		—		107,821
Total Customer Repurchase Agreements	225,605		—		—		—		225,605
Wholesale Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	—		—		3,715		—		3,715
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	—		—		1,292		—		1,292
Total Wholesale Repurchase Agreements	—		—		5,007		—		5,007
Total Repurchase Agreements	$	225,605	$	—	$	5,007	$	—	$	230,612

Certain customers held CDs totaling $919,000 and $917,000 with the Bank at September 30, 2017 and December 31, 2016, respectively, that were collateralized by CMO and MBS securities that were overnight repurchase agreements.

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

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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.

Level 2:   Valuation is determined from quoted prices for similar assets or liabilities in active markets, from quoted prices for identical or similar instruments in markets that are not active or by model-based techniques in which all significant inputs are observable in the market.

Level 3:   Valuation is derived from model-based and other techniques in which at least one significant input is unobservable and which may be based on the Company’s own estimates about the assumptions that market participants would use to value the asset or liability.

In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon model-based techniques incorporating various assumptions including interest rates, prepayment speeds and credit losses. Assets and liabilities valued using model-based techniques are classified as either Level 2 or Level 3, depending on the lowest level classification of an input that is considered significant to the overall valuation. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below.

Financial Instruments Recorded at Fair Value on a Recurring Basis

Loans Held For Sale: The fair value of loans held for sale is determined using quoted secondary market prices or executed sales agreements and is classified as Level 2.

AFS Securities:  The fair value of debt AFS securities is reported utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value of debt securities are classified as Level 2.

The fair value of equity AFS securities is reported utilizing market prices based on recent trading activity and dealer quotes. The equity securities are traded on inactive markets and are classified as Level 2.

Derivatives:  The fair value of the Company's interest rate swaps, including its junior subordinated debt interest rate swaps, FHLBB advance interest rate swaps and customer loan swaps, are determined using inputs that are observable in the market place obtained from third parties including yield curves, publicly available volatilities, and floating indexes and, accordingly, are classified as Level 2 inputs. The credit value adjustments associated with derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. As of September30, 2017 and December 31, 2016, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives due to collateral postings.

The fair value of the Company's fixed rate interest rate lock commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, adjusted for the Company's pull-through rate estimate (i.e. estimate of loans within its pipeline that will ultimately complete the origination process and be funded). The Company has classified its fixed rate interest rate lock commitments as Level 2 as the quoted secondary market prices are the

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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 September 30, 2017 and December 31, 2016, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
September 30, 2017
Financial assets:
Loans held for sale	$	12,997	$	—	$	12,997	$	—
AFS securities:
Obligations of states and political subdivisions	7,365		—		7,365		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	521,104		—		521,104		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	262,390		—		262,390		—
Subordinated corporate bonds	5,651		—		5,651		—
Equity securities	741		—		741		—
Customer loan swaps	3,482		—		3,482		—
Fixed-rate interest rate lock commitments	495		—		495		—
Forward delivery commitments	332		—		332		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123		—		8,123		—
FHLBB advance interest rate swaps	98		—		98		—
Customer loan swaps	3,482		—		3,482		—
Fixed-rate interest rate lock commitments	25		—		25		—
Forward delivery commitments	19		—		19		—
December 31, 2016
Financial assets:
Loans held for sale	$	14,836	$	—	$	14,836	$	—
AFS securities:
Obligations of states and political subdivisions	9,001		—		9,001		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	480,622		—		480,622		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	283,890		—		283,890		—
Subordinated corporate bonds	5,613		—		5,613		—
Equity securities	741		—		741		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate interest rate lock commitments	202		—		202		—
Forward delivery commitments	587		—		587		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,372		—		8,372		—
FHLBB advance interest rate swaps	389		—		389		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate interest rate lock commitments	15		—		15		—
Forward delivery commitments	309		—		309		—

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The Company did not have any transfers between Level 1 and Level 2 of the fair value hierarchy during the nine months ended September 30, 2017. The Company’s policy for determining transfers between levels occurs at the end of the reporting period when circumstances in the underlying valuation criteria change and result in transfer between levels.

Financial Instruments Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain financial assets and financial liabilities at fair value on a nonrecurring basis in accordance with GAAP. These include assets that are measured at the lower of cost or 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.

MSRs:  The Company accounts for mortgage servicing assets at cost, subject to impairment testing. When the carrying value of a tranche exceeds fair value, a valuation allowance is established to reduce the carrying cost to fair value. Fair value is based on a valuation model that calculates the present value of estimated net servicing income. The Company obtains a third-party valuation based upon loan level data including note rate, type and term of the underlying loans. The model utilizes two significant unobservable inputs, which are loan prepayment assumptions and the discount rate used, to calculate the fair value of each tranche, and, as such, the Company has classified within Level 3 of the fair value hierarchy.

Non-Financial Assets and Non-Financial Liabilities Recorded at Fair Value on a 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 nine months ended September 30, 2017 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

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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 nine months ended September 30, 2017 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 September 30, 2017 and December 31, 2016.

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
September 30, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,276	$	—	$	—	$	3,276
MSRs(1)	330		—		—		330
Non-financial assets:
OREO	341		—		—		341
December 31, 2016
Financial assets:
Collateral-dependent impaired loans	$	500	$	—	$	—	$	500
MSRs(1)	1,090		—		—		1,090
Non-financial assets:
OREO	922		—		—		922

(1) Represents MSRs deemed to be impaired and a valuation allowance was established to carry at fair value.

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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 September 30, 2017 and December 31, 2016:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
September 30, 2017
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0-50%	(9%)
				Estimated selling costs	0 - 10%	(3%)
Specifically reserved	3,110		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
MSR	330		Discounted cash flow	Prepayment rate	14%	(14%)
				Discount rate	7%	(7%)
OREO	341		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling cost	10%	(10%)
December 31, 2016
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	0 - 10%	(5%)
Specifically reserved	344		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(13%)
				Estimated selling costs	10 - 28%	(12%)
MSR	1,090		Discounted cash flow	Prepayment rate	15%	(15%)
				Discount rate	8%	(8%)
OREO	922		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 73%	(7%)
				Estimated selling costs	10%	(10%)

GAAP requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The following methods and assumptions were used by the Company in estimating the fair values of its other financial instruments.

Cash and Due from Banks:  The carrying amounts reported in the consolidated statements of condition approximate fair value.

HTM securities:  The fair value is estimated utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value is classified as Level 2.

Loans:  For variable rate loans that reprice frequently and have no significant change in credit risk, fair values are based on carrying values. The fair value of other loans is estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities.

Interest Receivable and Payable:  The carrying amounts reported in the consolidated statements of condition approximate fair value.

Deposits:  The fair value of demand, interest checking, savings and money market deposits is determined as the amount payable on demand at the reporting date. The fair value of time deposits is estimated by discounting the estimated future cash flows using market rates offered for deposits of similar remaining maturities.

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Borrowings:  The carrying amounts of short-term borrowings from the FHLBB, securities sold under repurchase agreements, notes payable and other short-term borrowings approximate fair value. The fair values of long-term borrowings and commercial repurchase agreements are based on the discounted cash flows using current rates for advances of similar remaining maturities.

Subordinated Debentures:  The fair values of are based on quoted prices from similar instruments in inactive markets.

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities measured at September 30, 2017: 

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	89,435	$	89,435	$	89,435	$	—	$	—
AFS securities	797,251		797,251		—		797,251		—
HTM securities	94,207		95,094		—		95,094		—
Loans held for sale	12,997		12,997		—		12,997		—
Residential real estate loans(1)	848,309		854,198		—		—		854,198
Commercial real estate loans(1)	1,119,087		1,082,977		—		—		1,082,977
Commercial loans(1)(2)	412,402		409,833		—		—		409,833
Home equity loans(1)	326,151		323,943		—		—		323,943
Consumer loans(1)	17,928		17,465		—		—		17,465
MSRs(3)	1,109		1,740		—		—		1,740
Interest receivable	9,415		9,415		—		9,415		—
Customer loan swaps	3,482		3,482		—		3,482		—
Fixed-rate interest rate lock commitments	495		495		—		495		—
Forward delivery commitments	332		332		—		332		—
Financial liabilities:
Deposits	$	2,956,413	$	2,953,386	$	—	$	2,953,386	$	—
Short-term borrowings	538,997		538,861		—		538,861		—
Long-term borrowings	10,738		10,816		—		10,816		—
Subordinated debentures	58,872		42,090		—		42,090		—
Interest payable	574		574		—		574		—
Junior subordinated debt interest rate swaps	8,123		8,123		—		8,123		—
FHLBB advance interest rate swaps	98		98		—		98		—
Customer loan swaps	3,482		3,482		—		3,482		—
Fixed-rate interest rate lock commitments	25		25		—		25		—
Forward delivery commitments	19		19		—		19		—

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

(2) Includes the HPFC loan portfolio.

(3) Reported fair value represents all MSRs currently being serviced by the Company.

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The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities measured at December 31, 2016:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	87,707	$	87,707	$	87,707	$	—	$	—
AFS securities	779,867		779,867		—		779,867		—
HTM securities	94,609		94,596		—		94,596		—
Loans held for sale	14,836		14,836		—		14,836		—
Residential real estate loans(1)	798,334		800,122		—		—		800,122
Commercial real estate loans(1)	1,038,626		1,006,249		—		—		1,006,249
Commercial loans(1)(2)	389,624		391,493		—		—		391,493
Home equity loans(1)	327,713		327,292		—		—		327,292
Consumer loans(1)	17,151		16,845		—		—		16,845
MSRs(3)	1,210		1,701		—		—		1,701
Interest receivable	8,654		8,654		—		8,654		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate interest rate lock commitments	202		202		—		202		—
Forward delivery commitments	587		587		—		587		—
Financial liabilities:
Deposits	$	2,828,529	$	2,826,484	$	—	$	2,826,484	$	—
Short-term borrowings	530,129		530,435		—		530,435		—
Long-term borrowings	10,791		10,836		—		10,836		—
Subordinated debentures	58,755		41,660		—		41,660		—
Interest payable	534		534		—		534		—
Junior subordinated debt interest rate swaps	8,372		8,372		—		8,372		—
FHLBB advance interest rate swaps	389		389		—		389		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate interest rate lock commitments	15		15		—		15		—
Forward delivery commitments	309		309		—		309		—

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

(2) Includes the HPFC loan portfolio.

(3) Reported fair value represents all MSRs currently being serviced by the Company.

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.

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

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As of September 30, 2017 and December 31, 2016, 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:

	September 30, 2017		December 31,   2016
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	461,731	$	454,225
Commercial and commercial real estate	75,972		83,103
Residential	39,128		17,795
Letters of credit	3,054		2,580
Other commitments	394		432
Derivative Financial Instruments:
Customer loan swaps	$	592,090	$	532,526
FHLBB advance interest rate swaps	50,000		50,000
Junior subordinated debt interest rate swaps	43,000		43,000
Interest rate lock commitments	26,182		15,249
Forward delivery commitments	13,023		15,125

Lending-Related Instruments

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

Derivative Financial Instruments

The Company uses derivative financial instruments for risk management purposes (primarily interest rate risk) and not for trading or speculative purposes. The Company controls the credit risk of these instruments through collateral, credit approvals and monitoring procedures. Additionally, as part of Company's normal mortgage origination process, it provides the borrower with the option to lock their interest rate based on current market prices. During the period from commitment date to the loan closing date, the Company is subject to the risk of interest rate change. In an effort to mitigate such risk, the Company may enter into forward delivery sales commitments, typically on a "best 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 OCI, net of tax. Quarterly, in conjunction with financial reporting, the Company assesses each cash flow

37

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 OCI 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.

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 September 30, 2017, the Company had $9.1 million of cash posted as collateral to the counterparty. The collateral posted by the Company was not readily available and has been presented within cash and due from banks on the consolidated statements of condition.

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

						September 30, 2017			December 31,   2016
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)			Fair Value(1)
$	10,000	3/18/2009	6/30/2021	3-Month USD LIBOR	5.09%	$	(670	)	$	(806	)
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	(2,268		)	(2,321		)
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	(2,253		)	(2,290		)
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	5.75%	(1,198		)	(1,211		)
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	5.56%	(1,734		)	(1,744		)
$	43,000					$	(8,123	)	$	(8,372	)

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

For the three and nine months endedSeptember 30, 2017 and 2016, 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 nine months endedSeptember 30, 2017 and 2016 were $981,000 and $1.2 million, respectively, and were classified as cash flows from operating activities in the Company's consolidated statements of cash flows.

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FHLBB Advance Interest Rate Swaps:

The Bank has two interest rate swap arrangements with a counterparty on two tranches of 30-day FHLBB advances with a total notional amount of $50.0 million. Each derivative arrangement commenced on February 25, 2016, with one contract set to expire on February 25, 2018 and the other 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 and nine months endedSeptember 30, 2017 and 2016, 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 September 30, 2017, the Bank had $1.2 million of cash held at a correspondent bank as collateral on its FHLBB advance interest rate swap and customer loan swap contracts.

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

						September 30, 2017			December 31,   2016
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%	$	(24	)	$	(152	)
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	(74		)	(237		)
$	50,000					$	(98	)	$	(389	)

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

Net payments to the counterparty for the nine months endedSeptember 30, 2017 and 2016 were $241,000 and $351,000, respectively, and were classified as cash flows from operating activities in the consolidated statements of cash flows.

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

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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:

		September 30, 2017						December 31, 2016
	Balance Sheet Location	Number of Positions	Notional		Fair Value			Number of Positions	Notional		Fair Value
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	29	$	145,292	$	(3,482	)	50	$	266,263	$	(1,945	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	30	150,753		2,618			—	—		—
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	59	296,045		864			50	266,263		1,945
Total		118	$	592,090	$	—		100	$	532,526	$	—

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

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. Our pipeline of mortgage loans with fixed-rate interest rate lock commitments were as follows for the periods indicated:

		September 30, 2017					December 31, 2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other Assets	$	23,052	$	495		$	12,310	$	202
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	3,130		(25		)	2,939		(15		)
Total		$	26,182	$	470		$	15,249	$	187

For the three months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's mortgage interest rate locks reported within mortgage banking income, net, on the consolidated statements of income were $60,000 and $226,000, respectively. For the nine months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's mortgage interest rate locks were $283,000 and $610,000, respectively.

Forward Delivery Commitments:

The Company typically enters into a forward delivery commitment with a secondary market investor, which has been approved by the Company within its normal governance process, at the onset of the loan origination process. The Company may enter into these arrangements with the secondary market investors on a "best effort" or "mandatory delivery" basis. The Company's normal practice 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

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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:

		September 30, 2017					December 31, 2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best effort")	Other Assets	$	11,348	$	332		$	14,250	$	587
Forward delivery commitments ("best effort")	Accrued interest and other liabilities	1,675		(19		)	875		(309		)
Total		$	13,023	$	313		$	15,125	$	278

For the three months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income were $16,000 and $0, respectively. For the nine months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income were $35,000 and $0, respectively.

The table below presents the effect of the Company’s derivative financial instruments included in OCI and current earnings for the periods indicated:

	For The Three Months Ended September 30,					For The Nine Months Ended September 30,
	2017			2016		2017			2016
Derivatives designated as cash flow hedges:
Effective portion of unrealized gains (losses) recognized within AOCI during the period, net of tax	$	(80	)	$	199	$	(452	)	$	(3,453	)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	366		$	534	$	1,234		$	1,521

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

The Company expects approximately $1.2 million (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 September 30, 2017.

NOTE 13 – RECENT ACCOUNTING PRONOUNCEMENTS

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

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

The scope of ASU 2014-09 specifically excludes financial instruments and other contractual rights or obligations within the scope of ASC 310, Receivables; ASC 320, Investments - Debit and Equity Securities; ASC 815, Derivatives and Hedging; and certain other ASC topics. As such, many significant revenue streams of the Company, including interest income, fair value adjustments, gains and losses on sale of financial instruments, and loan origination fees, are not within the scope of ASU 2014-09. Additionally, the FASB's Transition Resource Group for Revenue Recognition put forth a white paper specific to scoping considerations for financial institutions that concluded that servicing arrangements that are within the scope of ASC

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860, Transfers and Servicing, are not within the scope of ASU 2014-09. The FASB's Transition Resource Group also concluded that deposit-related fees are within the scope of ASU 2014-09.

The Company is currently performing an overall assessment of its revenue streams and has identified those potentially affected by ASU 2014-09, including (i) deposit-related fees; (ii) interchange income; and (iii) asset management, brokerage and trust fees. In evaluating the revenue streams and contracts, the Company does not expect the adoption of ASU 2014-09 to have a material impact on the timing or recognition of its revenue streams determined to be within scope.

In combination with the overall assessment of the Company's revenue streams within the scope of ASU 2014-09, it is assessing the need to present the identified revenue streams on a gross or net basis (i.e. principal versus agent) in accordance with ASU 2014-09 and as clarified by ASU No. 2016-08, Principal versus Agent Considerations (Reporting Revenue Gross versus Net).

In January 2016, the FASB issued ASU No. 2016-01, Income Statement - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Liabilities ("ASU 2016-01"). ASU 2016-01 was issued to enhance the reporting model for financial instruments to provide the users of financial statements with more useful information for decisions. ASU 2016-01 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company will adopt ASU 2016-01 through a cumulative-effect adjustment to the balance sheet upon adoption.

The Company will adopt ASU 2016-01 effective January 1, 2018. Upon adoption, the Company will be required to recognize unrealized gains and losses on its equity securities directly through the Company's consolidated statements of income, whereas these equity securities currently are designated as AFS and unrealized gains and losses are recognized within AOCI. The Company does not anticipate this portion of ASU 2016-01 will materially impact the Company's financial position upon adoption.

ASU 2016-01 also requires Companies to utilize an "exit price" fair value methodology for purposes of disclosing the fair value of financial assets and liabilities not measured and reported at fair value on a recurring or non-recurring basis. The Company currently discloses the fair value of its loan portfolio segments using an "entry price" fair value methodology (as disclosed within Note 11).

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

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

During the three months ended June 30, 2017, the Company elected to early adopt ASU 2017-09, effective as of January 1, 2017. The Company has not had any modifications to its share-based awards for the nine months ended September 30, 2017.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). ASU 2016-02 was issued to increase transparency and comparability among organizations by recognizing lease assets and liabilities (including operating leases) on the balance sheet and disclosing key information about leasing arrangements. Current lease accounting does not

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require the inclusion of operating leases in the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, early application is permitted. The Company will adopt under a modified-retrospective approach.

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

In March 2017, the FASB issued ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities ("ASU 2017-08"). ASU 2017-08 was issued to shorten the amortization period for certain callable debt securities purchased and carried at a premium, by requiring the premium to be amortized to the earliest call date of the debt security. ASU 2017-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The Company will adopt on a modified retrospective basis with any necessary adjustments to retained earnings as a cumulative-effect adjustment. While the Company continues to assess the impact of ASU 2017-08, it does not expect the ASU will have a material impact to its financial statements upon adoption.

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

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

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

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

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

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

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

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

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

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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 Part II, Item 1A. “Risk Factors” of this Form 10-Q and in our Annual Report on Form 10-K for the year ended December 31, 2016, 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	GAAP:	Generally accepted accounting principles in the United States
ALCO:	Asset/Liability Committee	HPFC:	Healthcare Professional Funding Corporation, a wholly-owned subsidiary of Camden National Bank
ALL:	Allowance for loan losses	HTM:	Held-to-maturity
AOCI:	Accumulated other comprehensive income (loss)	IRS:	Internal Revenue Service
ASC:	Accounting Standards Codification	LIBOR:	London Interbank Offered Rate
ASU:	Accounting Standards Update	LTIP:	Long-Term Performance Share Plan
Bank:	Camden National Bank, a wholly-owned subsidiary of Camden National Corporation	Management ALCO:	Management Asset/Liability Committee
Board ALCO:	Board of Directors' Asset/Liability Committee	MBS:	Mortgage-backed security
BOLI:	Bank-owned life insurance	MSRs:	Mortgage servicing rights
BSA:	Bank Secrecy Act	MSPP:	Management Stock Purchase Plan
CCTA:	Camden Capital Trust A, an unconsolidated entity formed by Camden National Corporation	OTTI:	Other-than-temporary impairment
CDARS:	Certificate of Deposit Account Registry System	NIM:	Net interest margin on a fully-taxable basis
CDs:	Certificate of deposits	N.M.:	Not meaningful
CMO:	Collateralized mortgage obligation	OCC:	Office of the Comptroller of the Currency
CNWM:	Camden National Wealth Management, a division of Camden National Bank	OCI:	Other comprehensive income (loss)
Company:	Camden National Corporation	OFAC:	Office of Foreign Assets Control
DCRP:	Defined Contribution Retirement Plan	OREO:	Other real estate owned
EPS:	Earnings per share	SERP:	Supplemental executive retirement plans
FASB:	Financial Accounting Standards Board	TDR:	Troubled-debt restructured loan
FDIC:	Federal Deposit Insurance Corporation	UBCT:	Union Bankshares Capital Trust I, an unconsolidated entity formed by Union Bankshares Company that was subsequently acquired by Camden National Corporation
FHLB:	Federal Home Loan Bank	U.S.:	United States of America
FHLBB:	Federal Home Loan Bank of Boston	USD:	United States Dollar
FRB:	Board of Governors of the Federal Reserve System	2003 Plan:	2003 Stock Option and Incentive Plan
FRBB:	Federal Reserve Bank of Boston	2012 Plan:	2012 Equity and Incentive Plan
Freddie Mac:	Federal Home Loan Mortgage Corporation	2013 Repurchase Program:	2013 Common Stock Repurchase Program, approved by the Company's Board of Directors

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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; (iv) accounting for postretirement plans; and (v) income taxes.

Effective January 1, 2017, the Company's internal policy for assessing individual loans for impairment was changed to increase the principal balance threshold for a loan from $250,000 to $500,000. The qualitative factors for assessing a loan individually for impairment in accordance with the Company's internal policy were unchanged, and continue to require the loan to be classified as substandard or doubtful and on non-accrual status.

There have been no other material changes to our critical accounting policies as disclosed within our Annual Report on Form 10-K for the year ended December 31, 2016. Refer to the Annual Report on Form 10-K for the year ended December 31, 2016 for discussion of the Company's critical accounting policies.

Refer to Note 13 of the consolidated financial statements for recently issued accounting pronouncements.

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.

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

	Three Months Ended   September 30,						Nine Months Ended   September 30,
	2017			2016			2017			2016
Non-interest expense, as presented	$	21,825		$	22,149		$	65,411		$	67,388
Less: merger and acquisition costs	—			(45		)	—			(866		)
Adjusted non-interest expense	$	21,825		$	22,104		$	65,411		$	66,522
Net interest income, as presented	$	29,160		$	28,372		$	85,641		$	84,828
Add: effect of tax-exempt income	535			533			1,580			1,588
Non-interest income, as presented	10,299			11,001			28,759			29,470
Less: net gain on sale of securities	(827		)	—			(827		)	(4		)
Adjusted net interest income plus non-interest income	$	39,167		$	39,906		$	115,153		$	115,882
Non-GAAP efficiency ratio	55.72		%	55.39		%	56.80		%	57.40		%
GAAP efficiency ratio	55.31		%	56.25		%	57.18		%	58.96		%

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

	Three Months Ended   September 30,				Nine Months Ended   September 30,
	2017		2016		2017		2016
Net interest income, as presented	$	29,160	$	28,372	$	85,641	$	84,828
Add: effect of tax-exempt income	535		533		1,580		1,588
Net interest income, tax equivalent	$	29,695	$	28,905	$	87,221	$	86,416

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.

	September 30, 2017			December 31, 2016
Tangible Book Value Per Share
Shareholders’ equity, as presented	$	414,366		$	391,547
Less: goodwill and other intangibles	(100,044		)	(101,461		)
Tangible shareholders’ equity	$	314,322		$	290,086
Shares outstanding at period end	15,515,577			15,476,379
Tangible book value per share	$	20.26		$	18.74
Book value per share	$	26.71		$	25.30
Tangible Common Equity Ratio
Total assets	$	4,039,943		$	3,864,230
Less: goodwill and other intangibles	(100,044		)	(101,461		)
Tangible assets	$	3,939,899		$	3,762,769
Tangible common equity ratio	7.98		%	7.71		%
Shareholders' equity to total assets	10.26		%	10.13		%

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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   September 30,						Nine Months Ended   September 30,
	2017			2016			2017			2016
Net income, as presented	$	11,339		$	10,903		$	31,649		$	29,165
Amortization of intangible assets, net of tax(1)	307			309			921			928
Net income, adjusted for amortization of intangible assets	$	11,646		$	11,212		$	32,570		$	30,093
Average shareholders' equity	$	411,497		$	387,972		$	403,195		$	378,647
Less: average goodwill and other intangible assets	(100,273		)	(102,168		)	(100,746		)	(103,054		)
Average tangible equity	$	311,224		$	285,804		$	302,449		$	275,593
Return on average tangible equity	14.85		%	15.61		%	14.40		%	14.59		%
Return on average shareholders' equity	10.93		%	11.18		%	10.49		%	10.29		%

(1) Assumed a 35% tax rate.

EXECUTIVE OVERVIEW

Operating Results

Net income for the three and nine months ended September 30, 2017 was $11.3 million and $31.6 million, respectively, representing increases over the same periods last year of 4% and 9%. Diluted EPS for the three and nine months ended September 30, 2017 was $0.72 per share and $2.02 per share, representing increases of 3% and 7%, respectively, over the same periods last year. Our return on average assets for the three and nine months ended September 30, 2017 was 1.12% and 1.07%, respectively, while our return on average equity over the same periods was 10.93% and 10.49%.

Financial Condition

As of September 30, 2017 total assets increased $175.7 million, or 5%, since year end to $4.0 billion. Our asset growth for the nine months ended September 30, 2017 was driven by loan growth of $153.7 million, or 6%, and investment securities increased $18.3 million, or 2%.

Total deposits at September 30, 2017 increased $127.9 million, or 5%, since year-end to $3.0 billion, while total borrowings increased $8.9 million, or 1%, to $608.6 million over the same period.

Asset quality at September 30, 2017 improved compared to year-end driven by the resolution of a large commercial real estate relationship in the third quarter of 2017. Non-performing loans and assets to total loans and assets at September 30, 2017 were 0.72% and 0.50%, respectively, compared to 0.97% and 0.67% at year-end.

The Company and Bank, maintain risk-based capital ratios in excess of the regulatory levels required for an institution to be considered “well capitalized.” At September 30, 2017, the Company’s total risk-based capital ratio and Tier I leverage capital ratio were 14.09% and 9.01%, respectively.

Tangible book value per share at September 30, 2017 increased 8% since year-end to $20.26 per share, while the tangible common equity ratio increased to 7.98% from 7.71% at December 31, 2016.

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 75% and 74% of total revenues (net interest income and non-interest income) for the nine months ended September 30, 2017 and 2016, 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.

49

Net Interest Income - Three months ended September 30, 2017 and 2016. Net interest income on a tax equivalent basis was $29.7 million for the third quarter of 2017 compared to $28.9 million for the third quarter of 2016, representing an increase of $790,000, or 3%. The increase was driven by average loan growth of 6% for the third quarter of 2017 over the third quarter of 2016, partially offset by a decrease in our NIM for the third quarter of 2017 of 5 basis points to 3.19% over the same period, which was driven by a decrease in fair value mark accretion income and income from collection on previously charged-off loans of $434,000. Excluding the fair value mark accretion income and income from collections on previously charged-off acquired loans, our NIM was 3.11% and 3.10% for the third quarter of 2017 and 2016, respectively.

During the first nine months of 2017, the Federal Open Market Committee ("FOMC") raised the federal funds rate twice, 25 basis points each, for a total of 50 basis points. Excluding the loan fair value mark accretion income and income from collections on previously charged-off acquired loans recognized for the third quarter of 2017 and 2016 of $722,000 and $1.0 million, respectively, our loan yield, as adjusted, for the third quarter of 2017 was 4.12% compared to 4.01% for the third quarter of 2016. The increase in our yield, as adjusted, was primarily the result of repricing variable rate loans linked to prime rate and LIBOR. However, as a result of the rate hike in the first half of 2017, our cost of funds has also increased. Excluding the fair value mark accretion recognized on CDs for the third quarter of 2017 and 2016 of $82,000 and $220,000, respectively, our cost of funds for the third quarter of 2017 and was 0.63% compared to 0.51% for the third quarter of 2016. The increase in our cost of funds was driven by the increased rates for FHLBB overnight borrowings and brokered deposits that were utilized to supplement funding of loan growth.

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 NIM for the three months ended September 30, 2017 and 2016:

50

Quarterly Average Balance, Interest and Yield/Rate Analysis
	For The Three Months Ended
	September 30, 2017								September 30, 2016
(In thousands)	Average Balance			Interest			Yield/Rate		Average Balance			Interest			Yield/Rate
Assets
Interest-earning assets:
Securities - taxable	$	819,778		$	4,674		2.28	%	$	810,747		$	4,497		2.22	%
Securities - nontaxable(1)	101,507			1,055			4.16	%	103,657			1,081			4.17	%
Loans(2)(3):
Residential real estate	851,828			8,717			4.09	%	824,985			8,664			4.20	%
Commercial real estate	1,136,851			11,836			4.07	%	1,031,674			10,394			3.94	%
Commercial(1)	347,469			3,712			4.18	%	307,184			3,052			3.89	%
Municipal(1)	24,847			203			3.24	%	24,628			165			2.66	%
Consumer	345,533			3,986			4.58	%	355,144			3,854			4.32	%
HPFC	49,619			1,062			8.38	%	68,334			1,420			8.13	%
Total loans	2,756,147			29,516			4.23	%	2,611,949			27,549			4.17	%
Total interest-earning assets	3,677,432			35,245			3.79	%	3,526,353			33,127			3.72	%
Cash and due from banks	85,931								97,755
Other assets	291,319								314,062
Less: ALL	(24,539		)						(23,984		)
Total assets	$	4,030,143							$	3,914,186
Liabilities & Shareholders' Equity
Deposits:
Demand	$	450,350		$	—		—	%	$	415,558		$	—		—	%
Interest checking	727,959			352			0.19	%	721,459			255			0.14	%
Savings	493,447			82			0.07	%	466,113			71			0.06	%
Money market	469,458			627			0.53	%	488,793			528			0.43	%
Certificates of deposit(3)	454,013			952			0.83	%	486,698			971			0.79	%
Total deposits	2,595,227			2,013			0.31	%	2,578,621			1,825			0.28	%
Borrowings:
Brokered deposits	310,207			1,014			1.30	%	239,975			379			0.63	%
Customer repurchase agreements	222,386			285			0.51	%	189,539			140			0.29	%
Junior subordinated debentures	58,853			858			5.78	%	58,697			857			5.81	%
Other borrowings	386,643			1,380			1.42	%	396,828			1,021			1.02	%
Total borrowings	978,089			3,537			1.43	%	885,039			2,397			1.08	%
Total funding liabilities	3,573,316			5,550			0.62	%	3,463,660			4,222			0.49	%
Other liabilities	45,330								62,554
Shareholders' equity	411,497								387,972
Total liabilities & shareholders' equity	$	4,030,143							$	3,914,186
Net interest income (fully-taxable equivalent)				29,695								28,905
Less: fully-taxable equivalent adjustment				(535		)						(533		)
Net interest income				$	29,160							$	28,372
Net interest rate spread (fully-taxable equivalent)							3.17	%							3.23	%
Net interest margin (fully-taxable equivalent)							3.19	%							3.24	%
Net interest margin (fully-taxable equivalent), excluding fair value mark accretion and collection of previously charged-off acquired loans(3)							3.11	%							3.10	%

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

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

(3) Excludes the impact of the fair value mark accretion on loans and CDs generated in purchase accounting and collection of previously charged-off acquired loans for the three months ended September 30, 2017 and 2016 totaling $804,000 and $1.2 million, respectively.

51

Net Interest Income - Nine months ended September 30, 2017 and 2016. Net interest income on a tax equivalent basis of $87.2 million for the nine months ended September 30, 2017 increased $805,000, or 1% compared to the same period last year. The increase was driven by average loan growth of 5% for the nine months ended September 30, 2017 over the same period last year, partially offset by a decrease in our NIM of 12 basis points to 3.19% over the same period, which was driven by a decrease in fair value mark accretion income and income from collection on previously charged-off loans of $2.7 million. Excluding the fair value mark accretion income and income from collections on previously charged-off acquired loans, our NIM was 3.10% for the nine months ended September 30, 2017 compared to 3.11% for the same period last year.

Excluding the loan fair value mark accretion income and income from collections on previously charged-off acquired loans recognized for the nine months ended September 30, 2017 and 2016 of $2.2 million and $4.4 million, respectively, our loan yield, as adjusted, for the nine months of 2017 was 4.09% compared to 4.04% for the same period last year. The increase in our yield, as adjusted, was primarily the result of repricing variable rate loans linked to prime rate and LIBOR. However, as a result of the rate hike in the first half of 2017, our cost of funds has also increased. Excluding the fair value mark accretion recognized on CDs for the nine months ended September 30, 2017 and 2016 of $247,000 and $717,000, respectively, our cost of funds for the nine months ended September 30, 2017 and was 0.59% compared to 0.52% for the same period last year. The increase in our cost of funds was driven by the increased rates for FHLBB overnight borrowings and brokered deposits that were utilized to supplement funding of loan growth.

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 NIM for the nine months ended September 30, 2017 and 2016:

52

Year-To-Date Average Balance, Interest and Yield/Rate Analysis
	For The Nine Months Ended
	September 30, 2017								September 30, 2016
(In thousands)	Average Balance			Interest			Yield/Rate		Average Balance			Interest			Yield/Rate
Assets
Interest-earning assets:
Securities - taxable	$	832,054		$	14,150		2.27	%	$	798,054		$	13,106		2.19	%
Securities - nontaxable(1)	102,075			3,198			4.18	%	102,812			3,273			4.24	%
Loans(2)(3):
Residential real estate	831,072			25,580			4.10	%	825,660			25,915			4.18	%
Commercial real estate	1,109,386			33,833			4.02	%	988,329			30,690			4.08	%
Commercial(1)	334,247			10,560			4.17	%	290,459			9,318			4.21	%
Municipal(1)	19,761			493			3.34	%	18,655			419			3.00	%
Consumer	343,294			11,358			4.42	%	361,085			11,399			4.22	%
HPFC	53,873			3,472			8.50	%	72,380			4,818			8.75	%
Total loans	2,691,633			85,296			4.20	%	2,556,568			82,559			4.27	%
Total interest-earning assets	3,625,762			102,644			3.76	%	3,457,434			98,938			3.79	%
Cash and due from banks	82,548								87,248
Other assets	287,255								305,890
Less: ALL	(23,976		)						(22,446		)
Total assets	$	3,971,589							$	3,828,126
Liabilities & Shareholders' Equity
Deposits:
Demand	$	411,818		$	—		—	%	$	372,131		$	—		—	%
Interest checking	725,705			952			0.18	%	722,764			649			0.12	%
Savings	490,648			229			0.06	%	455,134			204			0.06	%
Money market	476,983			1,753			0.49	%	485,611			1,532			0.42	%
Certificates of deposit(3)	458,208			3,014			0.88	%	492,892			2,835			0.77	%
Total deposits	2,563,362			5,948			0.31	%	2,528,532			5,220			0.28	%
Borrowings:
Brokered deposits	322,860			2,620			1.09	%	216,589			1,135			0.70	%
Customer repurchase agreements	225,426			747			0.44	%	188,124			387			0.27	%
Junior subordinated debentures	58,814			2,553			5.80	%	58,712			2,557			5.82	%
Other borrowings	354,443			3,555			1.34	%	402,121			3,223			1.07	%
Total borrowings	961,543			9,475			1.32	%	865,546			7,302			1.13	%
Total funding liabilities	3,524,905			15,423			0.58	%	3,394,078			12,522			0.49	%
Other liabilities	43,489								55,401
Shareholders' equity	403,195								378,647
Total liabilities & shareholders' equity	$	3,971,589							$	3,828,126
Net interest income (fully-taxable equivalent)				87,221								86,416
Less:  fully-taxable equivalent adjustment				(1,580		)						(1,588		)
Net interest income				$	85,641							$	84,828
Net interest rate spread (fully-taxable equivalent)							3.18	%							3.30	%
Net interest margin (fully-taxable equivalent)							3.19	%							3.31	%
Net interest margin (fully-taxable equivalent), excluding fair value mark accretion and collection of previously charged-off acquired loans(3)							3.10	%							3.11	%

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

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

(3) Excludes the impact of the fair value mark accretion on loans and CDs generated in purchase accounting and collection of previously charged-off acquired loans for the nine months ended September 30, 2017 and 2016 totaling $2.5 million and $5.2 million, respectively.

53

Provision for Credit Losses

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

The provision for loan losses, which makes up the vast majority of the provision for credit losses, is a recorded expense determined by management that adjusts the ALL to a level that, in management’s best estimate, is necessary to absorb probable losses within the existing loan portfolio. The provision for loan losses reflects loan quality trends, including, among other factors, the levels of and trends related to non-accrual loans, past due loans, potential problem loans, criticized loans, net charge-offs or recoveries and growth in the loan portfolio. Accordingly, the amount of the provision for loan losses reflects both the necessary increases in the ALL related to newly identified criticized loans, as well as the actions taken related to other loans including, among other things, any necessary increases or decreases in required allowances for specific loans or loan pools. The provision for loan losses for the third quarter of 2017 was $802,000, or 0.12% of average loans (annualized), compared to $1.3 million, or 0.20% of average loans (annualized), for the third quarter of 2016. The provision for loan losses for the nine months ended September 30, 2017 was $2.8 million, or 0.14% of average loans (annualized), compared to $5.0 million, or 0.26% of average loans (annualized), for the same period last year.

The provision for unfunded commitments represents management's estimate of the amount required to reflect the probable inherent losses on outstanding letters and unused lines of credit. The reserve for unfunded commitments 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 and nine months ended September 30, 2017 and 2016:

	Three Months Ended   September 30,						Change					Nine Months Ended   September 30,						Change
	2017			2016			$			%		2017			2016			$			%
Debit card income	$	2,061		$	1,894		$	167		9	%	$	5,887		$	5,650		$	237		4	%
Service charges on deposit accounts	1,852			1,799			53			3	%	5,632			5,356			276			5	%
Mortgage banking income, net	2,076			2,407			(331		)	(14	)%	5,566			4,921			645			13	%
Income from fiduciary services	1,229			1,225			4			—	%	3,831			3,736			95			3	%
Bank-owned life insurance	603			585			18			3	%	1,750			1,899			(149		)	(8	)%
Brokerage and insurance commissions	600			594			6			1	%	1,601			1,569			32			2	%
Other service charges and fees	589			591			(2		)	—	%	1,558			1,494			64			4	%
Net gain on sale of securities	827			—			827			(100	)%	827			4			823			N.M.
Other income	462			1,906			(1,444		)	(76	)%	2,107			4,841			(2,734		)	(56	)%
Total non-interest income	$	10,299		$	11,001		$	(702	)	(6	)%	$	28,759		$	29,470		$	(711	)	(2	)%
Non-interest income as a percentage of total revenues(1)	26		%	28		%						25		%	26		%

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

Non-Interest Income - Three Months Ended September 30, 2017 and 2016. The significant changes in non-interest income for the three months ended September 30, 2017 compared to the three months ended September 30, 2016 included:

• A decrease in other income driven by (i) one-time legal proceeds of $638,000 in the third quarter of 2016; (ii) a decrease in fees from customer loan swaps of $426,000; and (iii) exiting a sub-servicing contract effective December 31, 2016 that decreased sub-servicing income $336,000.

• An increase in net gain on sale of securities of $827,000 primarily due to the sale of several small lot investment positions with a total amortized cost of $19.4 million.

• A decrease in mortgage banking income of $331,000 due to a decrease in mortgage sales of $11.5 million to $59.9 million for the third quarter of 2017, compared to the third quarter of 2016.

54

Non-Interest Income - Nine Months Ended September 30, 2017 and 2016. The significant changes in non-interest income for the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016 included:

• A decrease in other income driven by (i) exiting a sub-servicing contract effective December 31, 2016 that decreased sub-servicing income $1.0 million; (ii) a decrease in fees from customer loan swaps of $965,000; and (iii) one-time legal proceeds of $638,000 for the nine months ended September 30, 2016.

• An increase in net gain on sale of securities of $827,000 primarily due to the sale of several small lot investment positions with a total amortized cost of $19.4 million.

• An increase in mortgage banking income driven by an increase in net gains on mortgage sales of $104,000, a decrease in amortization of our MSR loan portfolio, and recovery of a temporary impairment of our MSR portfolio.

Non-Interest Expense

The following table presents the components of non-interest expense for the three and nine months ended September 30, 2017 and 2016:

	Three Months Ended   September 30,						Change					Nine Months Ended   September 30,						Change
	2017			2016			$			%		2017			2016			$			%
Salaries and employee benefits	$	12,359		$	12,044		$	315		3	%	$	36,882		$	35,634		$	1,248		4	%
Furniture, equipment and data processing	2,429			2,349			80			3	%	7,204			7,157			47			1	%
Net occupancy costs	1,599			1,685			(86		)	(5	)%	5,234			5,352			(118		)	(2	)%
Consulting and professional fees	714			742			(28		)	(4	)%	2,412			2,609			(197		)	(8	)%
Debit card expense	662			669			(7		)	(1	)%	2,034			2,107			(73		)	(3	)%
Regulatory assessments	574			667			(93		)	(14	)%	1,607			2,162			(555		)	(26	)%
Amortization of intangible assets	473			475			(2		)	—	%	1,417			1,427			(10		)	(1	)%
Other real estate owned and collection costs, net	258			877			(619		)	(71	)%	558			2,029			(1,471		)	(72	)%
Merger and acquisition costs	—			45			(45		)	(100	)%	—			866			(866		)	(100	)%
Other expenses	2,757			2,596			161			6	%	8,063			8,045			18			—	%
Total non-interest expense	$	21,825		$	22,149		$	(324	)	(1	)%	$	65,411		$	67,388		$	(1,977	)	(3	)%
Non-GAAP efficiency ratio	55.72		%	55.39		%						56.80		%	57.40		%

Non-Interest Expense - Three Months Ended September 30, 2017 and 2016. The significant changes in non-interest expense for the three months ended September 30, 2017 compared to the three months ended September 30, 2016:

• A decrease in other real estate owned and collection costs was primarily due to a decrease in sub-servicing costs of $569,000 upon exiting a sub-servicing contract effective December 31, 2016.

• An increase in salaries and employee benefits costs of 3% driven by normal annual merit increases and higher health and benefits costs.

• A decrease in regulatory assessments costs driven by the change in the FDIC fee structure that went into effect for the third quarter of 2016 that reduced the assessment rate.

Non-Interest Expense - Nine Months Ended September 30, 2017 and 2016. The significant changes in non-interest expense for the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016:

• A decrease in other real estate owned and collection costs was primarily due to a decrease in sub-servicing costs of $1.2 million upon exiting a sub-servicing contract effective December 31, 2016.

• An increase in salaries and employee benefits costs of 4% driven by normal annual merit increases and higher health and benefits costs.

• A decrease in merger and acquisition costs as they did not reoccur in 2017.

• A decrease in regulatory assessments costs driven by the change in the FDIC fee structure that went into effect for the third quarter of 2016 that reduced the assessment rate.

55

Income Tax Expense

Our effective income tax rate for the three months ended September 30, 2017 and 2016 was 32.6% and 31.6%, respectively, and for the nine months ended September 30, 2017 and 2016 was 31.5% and 30.4%, respectively. The increase in our effective tax rate for the three and nine months ended September 30, 2017 over the same period last year was driven by (i) a change in our estimated annual effective tax rate for calendar year 2017 due to a change in our estimate of tax-exempt income as a percentage of total pre-tax income; (ii) a change in our state apportionment percentages as our income continues to grow outside the state of Maine; and (iii) certain discrete period items that are further described in Note 7 of the consolidated financial statements.

At September 30, 2017 and December 31, 2016, net deferred tax assets totaled $36.3 million and $39.3 million, respectively, that are determined and reported utilizing a deferred tax rate of 35.0% based on current enacted tax rates. Should a change in the federal and/or state enacted tax rate occur, we would be required to record our net deferred tax assets at the newly issued enacted tax rate at that time, and a corresponding immediate charge (assuming a decrease in tax rates) to income tax expenses would be recorded.

At September 30, 2017 and December 31, 2016, we did not carry any valuation allowances on our deferred tax assets.

FINANCIAL CONDITION

Investment Securities

We purchase and hold investment securities including municipal bonds, MBS (pass through securities and CMOs), subordinated corporate bonds and FHLB and FRB stock to diversify our revenues, interest rate and credit risk, and to provide for liquidity and funding needs. At September 30, 2017, our total investment securities holdings were $916.0 million, an increase of $18.3 million since December 31, 2016. For the nine months endedSeptember 30, 2017, we purchased $141.6 million of debt securities and had sales with an amortized cost of $19.4 million; we had maturities, calls and principal pay-downs of $101.1 million and net amortization of $2.3 million.

During the nine months ended September 30, 2017, the $141.6 million of securities purchased were a combination of MBS and CMOs. All of these investments have been categorized as AFS securities and are carried at fair value on the consolidated statements of condition with the associated unrealized gains or losses recorded in AOCI, net of tax. At September 30, 2017, we had a $5.2 million net unrealized loss on our AFS securities, net of tax, compared to a $6.1 million net unrealized loss, net of tax, at December 31, 2016. The fluctuation in the fair value of our MBS and CMO investment securities is highly dependent on interest rates as of the end of the reporting period and is not reflective of an overall credit deterioration within our portfolio.

The duration of our investment securities portfolio decreased to 3.8 years at September 30, 2017 from 4.3 years at December 31, 2016. This decrease was due to the purchase of shorter duration MBS and CMOs and a reduction in long term rates since year-end. MBS and CMO investments have a shorter weighted-average life than the municipal bonds. We generally purchase MBS and CMO investments with an average life of no longer than six years to limit prepayment risk compared to fifteen years for a municipal bond.

We completed our quarterly OTTI assessment for our investment portfolio as of September 30, 2017, which included assessment of our Texas municipal bonds due to the impact of Hurricane Harvey. Texas municipal bonds represent 10% of our total municipal bond portfolio. Through our assessment, we identified that we did not have any municipal bonds in Houston or any of its immediately surrounding districts. We concluded that no OTTI existed across our investment portfolio, including our Texas municipal bonds as of September 30, 2017. Our process and methodology for analyzing our investments portfolio for OTTI has not changed since last disclosed within our Annual Report on Form 10-K for the year ended December 31, 2016. Refer to the Annual Report on Form 10-K for the year ended December 31, 2016 for further discussion of the Company's process and methodology.

FHLBB and FRB Bank Stock

We are required to maintain a level of investment in FHLBB stock based on the Bank's level of FHLBB advances. For the nine months ended September 30, 2017, the Bank had net purchases of $1.4 million of FHLBB stock. Our investment balance at September 30, 2017 and December 31, 2016 was $19.2 million and $17.8 million, respectively. No market exists for shares of FHLBB stock.

We are required to maintain a level of investment in FRBB stock based on the Company's shareholders' equity position. We did not purchase or sell any FRBB stock for the nine months ended September 30, 2017. Our investment balance at September 30, 2017 and December 31, 2016 was $5.4 million. No market exists for shares of FRBB stock.

56

Loans

We provide loans primarily to customers located within our geographic market area. Our primary market continues to be in Maine, making up 83% of our loan portfolio at September 30, 2017, followed by Massachusetts and New Hampshire, making up 7% and 5%, respectively.

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

	September 30, 2017			December 31, 2016			Change
							($)			(%)
Residential real estate	$	852,851		$	802,494		$	50,357		6	%
Commercial real estate	1,131,883			1,050,780			81,103			8	%
Commercial	369,155			333,639			35,516			11	%
Home equity	328,328			329,907			(1,579		)	—	%
Consumer	18,123			17,332			791			5	%
HPFC	47,950			60,412			(12,462		)	(21	)%
Total loans	$	2,748,290		$	2,594,564		$	153,726		6	%
Commercial Loan Portfolio	$	1,548,988		$	1,444,831		$	104,157		7	%
Retail Loan Portfolio	$	1,199,302		$	1,149,733		$	49,569		4	%
Commercial Portfolio Mix	56		%	56		%
Retail Portfolio Mix	44		%	44		%

For the nine months ended September 30, 2017, we originated $302.2 million of residential mortgages and sold 51% of our production (including loans designated as held for sale at September 30, 2017).

The decrease in the HPFC loan portfolio of $12.5 million, or 21%, for the nine months ended September 30, 2017 was due to the natural run-off of loan balances as we are no longer originating loans out of this loan segment.

At September 30, 2017, the principal balance of loans held for sale totaled $13.0 million, for which an unrealized loss of $26,000 was reported to carry it at fair value on our consolidated statements of condition. At December 31, 2016, the principal balance of loans held for sale totaled $15.1 million, for which an unrealized loss of $289,000 was reported to carry it at fair value on our consolidated statements of condition.

BOLI

In the third quarter of 2017 the Company made an additional BOLI investment of $7.0 million. Our BOLI investment at September 30, 2017 and December 31, 2016 was $86.9 million and $78.1 million, respectively.    

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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: 

	September 30, 2017			December 31, 2016
Non-accrual loans:
Residential real estate	$	4,465		$	3,945
Commercial real estate	5,887			12,849
Commercial	1,830			2,088
Consumer and home equity loans	1,626			1,624
HPFC	838			207
Total non-accrual loans	14,646			20,713
Accruing loans past due 90 days	—			—
Accruing TDRs not included above	5,154			4,338
Total non-performing loans	19,800			25,051
Other real estate owned	341			922
Total non-performing assets	$	20,141		$	25,973
Non-accrual loans to total loans	0.53		%	0.80		%
Non-performing loans to total loans	0.72		%	0.97		%
ALL to non-performing loans	123.30		%	92.28		%
Non-performing assets to total assets	0.50		%	0.67		%
ALL to non-performing assets	121.21		%	89.00		%

Our non-accrual loans to total loans ratio decreased 27 basis points to 0.53% at September 30, 2017 since year-end, and our non-performing assets to total assets ratio decreased 17 basis points to 0.50% over the same period. The majority of the decrease in non-accrual loans and non-performing assets within commercial real estate of $7.0 million was driven by one $10.0 million relationship that resolved in the third quarter of 2017.

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 September 30, 2017, potential problem loans amounted to $2.4 million, or 0.09% of total loans and 0.15% 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:

	September 30, 2017			December 31, 2016
Accruing loans 30-89 days past due:
Residential real estate	$	3,169		$	2,470
Commercial real estate	2,297			971
Commercial	712			851
Consumer and home equity loans	1,256			1,018
HPFC	938			1,029
Total accruing loans 30-89 days past due	$	8,372		$	6,339
Accruing loans 30-89 days past due to total loans	0.30		%	0.24		%

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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 September 30,						At or For The Nine Months Ended September 30,						At or For The Year Ended December 31, 2016
	2017			2016			2017			2016
ALL at the beginning of the period	$	24,394		$	23,717		$	23,116		$	21,166		$	21,166
Provision for loan losses	802			1,287			2,786			5,011			5,269
Charge-offs:
Residential real estate	238			—			433			229			356
Commercial real estate	69			32			81			273			315
Commercial	369			1,541			650			1,970			2,218
Consumer and home equity	39			63			493			289			409
HPFC	193			205			274			507			507
Total charge-offs	908			1,841			1,931			3,268			3,805
Recoveries:
Residential real estate	26			1			30			72			95
Commercial real estate	25			7			138			50			50
Commercial	59			118			254			252			332
Consumer and home equity	10			1			15			7			9
HPFC	5			—			5			—			—
Total recoveries	125			127			442			381			486
Net charge-offs	783			1,714			1,489			2,887			3,319
ALL at the end of the period	$	24,413		$	23,290		$	24,413		$	23,290		$	23,116
Components of allowance for credit losses:
Allowance for loan losses	$	24,413		$	23,290		$	24,413		$	23,290		$	23,116
Liability for unfunded credit commitments	22			14			22			14			11
Balance of allowance for credit losses at end of the period	$	24,435		$	23,304		$	24,435		$	23,304		$	23,127
Net charge-offs (annualized) to average loans	0.11		%	0.26		%	0.07		%	0.15		%	0.13		%
Provision for loan losses (annualized) to average loans	0.12		%	0.20		%	0.14		%	0.26		%	0.21		%
ALL to total loans	0.89		%	0.90		%	0.89		%	0.90		%	0.89		%
ALL to net charge-offs (annualized)	779.47		%	339.70		%	1,229.67		%	605.04		%	696.47		%

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 increase in the ALL of $1.3 million, or 6%, since year-end to $24.4 million at September 30, 2017 was driven by loan growth of 6% and net charge-offs of $1.8 million over the same period.

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Due to the recent weather events of Hurricanes Harvey and Irma in Texas and Florida, respectively, we assessed our exposure to the areas impacted by the hurricanes. As of September 30, 2017, our total residential and commercial loan exposure was $8.9 million and we did not have any unfunded commitments on these loans or other relationships secured by property in the affected areas. Of this amount, borrowers with $3.5 million of loan balances accepted our offering of 90 day deferment for payment. As of September 30, 2017, we did not identify any impaired loans as a result of the hurricanes.

We believe the ALL of $24.4 million, or 0.89% of total loans and 123.30% of total non-performing loans, at September 30, 2017 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. Core deposits (demand, interest checking, savings and money market) at September 30, 2017 increased $123.5 million, or 6%, since year-end to $2.2 billion driven by an increase in demand and interest checking of $69.5 million, or 17%, and $57.1 million, or 8%, respectively. CDs increased $30.8 million, or 7%, to $499.0 million at September 30, 2017 since year-end, primarily due to one large municipal relationship transferring its deposits from interest checking to CDs. Over the same period, brokered deposits decreased $26.4 million, or 10%, to $246.3 million, while total borrowings increased $8.9 million, or 1%, to $608.6 million over the same period.

Shareholders' Equity. Total shareholders' equity at September 30, 2017 increased $22.8 million, or 6%, to $414.4 million, since year-end. The increase was primarily due to net income for the nine months ended September 30, 2017 of $31.6 million, partially offset by dividends declared for the nine months ended September 30, 2017 of $10.7 million (or $0.69 per share).

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

	At or For The Three Months Ended   September 30,						At or For The Nine Months Ended September 30,						At or For The Year Ended December 31, 2016
	2017			2016			2017			2016
Return on average assets	1.12		%	1.11		%	1.07		%	1.02		%	1.04		%
Return on average equity	10.93		%	11.18		%	10.49		%	10.29		%	10.47		%
Average equity to average assets	10.21		%	9.91		%	10.15		%	9.89		%	9.97		%
Dividend payout ratio	31.59		%	28.44		%	33.96		%	31.99		%	32.22		%
Book value per share	$	26.71		$	25.47		$	26.71		$	25.47		$	25.30
Tangible book value per share	$	20.26		$	18.87		$	20.26		$	18.87		$	18.74
Dividends declared per share	$	0.23		$	0.20		$	0.69		$	0.60		$	0.83

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 September 30, 2017 and December 31, 2016, our level of liquidity exceeded target levels. We believe that we currently have appropriate liquidity available to respond to liquidity demands. Sources of funds that we utilize consist of deposits; borrowings from the FHLBB and other sources; cash flows from operations; prepayments and maturities of outstanding loans, investments and mortgage-backed securities; and the sale of mortgage loans.

Deposits continue to represent our primary source of funds. For the nine months ended September 30, 2017, average deposits (excluding brokered deposits) of $2.6 billion increased $34.8 million, or 1%, compared to the same period last year. Average core deposits (demand, interest checking, savings and money market) of $2.1 billion for the nine months ended September 30, 2017 increased $69.5 million, or 3%, compared to the same period a year ago. Included within our money

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market deposits at September 30, 2017 were $66.9 million of deposits from CNWM which represents client funds. These deposits fluctuate with changes in the portfolios of the clients of CNWM.

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 nine months ended September 30, 2017 average total borrowings (including brokered deposits) increased $96.0 million to $961.5 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 $98.9 million as of September 30, 2017. We had no outstanding balances on these lines of credit at September 30, 2017. Long-term borrowings represent securities sold under repurchase agreements with major brokerage firms. Both wholesale and 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, 2017. We had no outstanding balance on these lines of credit at September 30, 2017.

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

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 $414.4 million and $391.5 million at September 30, 2017 and December 31, 2016, respectively, which amounted to 10% of total assets for all of the respective dates. Refer to "— Financial Condition — Liabilities and Shareholders' Equity" for discussion regarding changes in shareholders' equity since December 31, 2016.

Our principal cash requirement is the payment of dividends on our common stock, as and when declared by the Board of Directors. We declared dividends to shareholders in the aggregate amount of $10.7 million and $9.3 million for the nine months ended September 30, 2017 and 2016, respectively. The Company's Board of Directors approved a $0.03 per share, or 15%, increase in the fourth quarter 2016 dividend to $0.23 per share. For the nine months ended September 30, 2017, the Company's Board of Directors approved a dividend of $0.23 each quarter, which drove the increase in dividends declared for the nine months ended September 30, 2017 of $1.4 million compared to the same period for 2016. 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 our subsidiaries to service our commitments. We, as the sole shareholder of our subsidiaries, are entitled to dividends, when and as declared by each subsidiary’s Board of Directors from legally available funds. The Bank declared dividends to the Company in the aggregate amount of $16.8 million and $10.9 million for the nine months ended September 30, 2017 and 2016, 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 capital regulatory requirements. At September 30, 2017 and December 31, 2016, the Company and Bank met all regulatory capital requirements and the Bank continues to be classified as "well capitalized" under the prompt correction action provisions.

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CONTRACTUAL OBLIGATIONS AND 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. At September 30, 2017, we had the following levels of commitments to extend credit:

	Total Amount		Commitment Expires in:
	Committed		<1 Year		1 – 3 Years		4 – 5 Years		>5 Years
Home equity line of credit commitments	$	461,731	$	178,340	$	48,162	$	6,705	$	228,524
Commercial commitment letters	75,972		75,972		—		—		—
Residential loan origination	39,128		39,128		—		—		—
Letters of credit	3,054		3,054		—		—		—
Other commitments to extend credit	394		394		—		—		—
Total	$	580,279	$	296,888	$	48,162	$	6,705	$	228,524

We are a party to several off-balance sheet contractual obligations through lease agreements on a number of branch facilities. Additionally, we enter into agreements routinely as part of our normal business to manage deposits and borrowings. At September 30, 2017, we had an obligation and commitment to make future payments under each of these contracts as follows:

	Total Amount		Payments Due per Period
(Dollars in Thousands)	of Obligations		<1 Year		1 – 3 Years		4 – 5 Years		>5 Years
Operating leases	$	5,526	$	1,225	$	1,964	$	823	$	1,514
Capital leases	1,096		126		253		260		457
FHLBB borrowings - overnight	3,300		3,300		—		—		—
FHLBB borrowings less than 90 days	270,000		270,000		—		—		—
FHLBB borrowings - other	10,000		—		10,000		—		—
Retail repurchase agreements	265,627		265,627		—		—		—
Junior subordinated debentures	44,305		—		—		—		44,305
Subordinated debentures	14,566		—		—		—		14,566
Total	$	614,420	$	540,278	$	12,217	$	1,083	$	60,842

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.

Derivatives

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. For additional details refer to Note 12 of the consolidated financial statements.

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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 September 30, 2017 and 2016, our net interest income sensitivity analysis reflected the following changes to net interest income assuming no balance sheet growth and a parallel shift in interest rates. All rate changes were “ramped” over the first 12-month period and then maintained at those levels over the remainder of the ALCO simulation horizon.

	Estimated Changes In  Net Interest Income
Rate Change from Year 1 — Base	September 30, 2017		September 30, 2016
Year 1
+200 basis points	0.30	%	(0.75	)%
-100 basis points	(2.69	)%	(1.76	)%
Year 2
+200 basis points	7.00	%	(3.51	)%
-100 basis points	(8.11	)%	(9.76	)%

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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 September 30, 2017, we had $43.0 million notional principal amount of interest rate swap agreements related to the junior subordinated debentures, $50.0 million notional principal amount of interest swap agreements related to our FHLBB 30-day funding and $592.1 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.

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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. 

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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, 2016.

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.

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ITEM 6.  EXHIBITS

Exhibit No.	Definition
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 September 30, 2017, formatted in XBRL: (i) Consolidated Statements of Condition - September 30, 2017 and December 31, 2016; (ii) Consolidated Statements of Income - Three and Nine Months Ended September 30, 2017 and 2016; (iii) Consolidated Statements of Comprehensive Income - Three and Nine Months Ended September 30, 2017 and 2016; (iv) Consolidated Statements of Changes in Shareholders’ Equity - Nine Months Ended September 30, 2017 and 2016; (v) Consolidated Statements of Cash Flows - Nine Months Ended September 30, 2017 and 2016; and (vi) Notes to the Unaudited Consolidated Financial Statements.
*	Filed herewith.
**	Furnished herewith.

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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	November 3, 2017
Gregory A. Dufour	Date
President and Chief Executive Officer (Principal Executive Officer)
/s/ Deborah A. Jordan	November 3, 2017
Deborah A. Jordan	Date
Chief Operating Officer, Chief Financial Officer and
Principal Financial & Accounting Officer

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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: November 3, 2017

/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: November 3, 2017

/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 September 30, 2017 to which this certification is being furnished as an exhibit (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.  This certification is provided pursuant to 18 U.S.C. Section 1350 and Item 601(b)(32) of Regulation S-K (“Item 601(b)(32)”) promulgated under the Securities Act of 1933, as amended (the “Securities Act”), and the Exchange Act.  In accordance with clause (ii) of Item 601(b)(32), this certification (a) shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to liability of 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	November 3, 2017
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 September 30, 2017 to which this certification is being furnished as an exhibit (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.  This certification is provided pursuant to 18 U.S.C. Section 1350 and Item 601(b)(32) of Regulation S-K (“Item 601(b)(32)”) promulgated under the Securities Act of 1933, as amended (the “Securities Act”), and the Exchange Act.  In accordance with clause (ii) of Item 601(b)(32), this certification (a) shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to liability of 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	November 3, 2017
Deborah A. Jordan	Date
Chief Operating Officer, Chief Financial Officer and
Principal Financial & Accounting Officer

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 27, 2017
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
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		15,516,049

XML

CONSOLIDATED STATEMENTS OF CONDITION (CURRENT PERIOD UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 89,435	$ 87,707
Investments:
Available-for-sale securities, at fair value	797,251	779,867
Held-to-maturity securities, at amortized cost	94,207	94,609
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	24,560	23,203
Total investments	916,018	897,679
Loans held for sale, at fair value	12,997	14,836
Loans	2,748,290	2,594,564
Less: allowance for loan losses	(24,413)	(23,116)
Net loans	2,723,877	2,571,448
Goodwill	94,697	94,697
Other intangible assets	5,347	6,764
Bank-owned life insurance	86,869	78,119
Premises and equipment, net	42,422	42,873
Deferred tax assets	36,344	39,263
Other assets	31,937	30,844
Total assets	4,039,943	3,864,230
Deposits:
Demand	476,386	406,934
Interest checking	758,568	701,494
Savings and money market	976,246	979,263
Certificates of deposit	498,965	468,203
Brokered deposits	246,248	272,635
Total deposits	2,956,413	2,828,529
Short-term borrowings	538,997	530,129
Long-term borrowings	10,738	10,791
Subordinated debentures	58,872	58,755
Accrued interest and other liabilities	60,557	44,479
Total liabilities	3,625,577	3,472,683
Commitments and Contingencies
Shareholders’ Equity
Common stock, no par value: authorized 40,000,000 shares, issued and outstanding 15,515,577 and 15,476,379 on September 30, 2017 and December 31, 2016, respectively	156,561	156,041
Retained earnings	270,316	249,415
Accumulated other comprehensive loss:
Net unrealized losses on available-for-sale securities, net of tax	(5,165)	(6,085)
Net unrealized losses on cash flow hedging derivative instruments, net of tax	(5,344)	(5,694)
Net unrecognized losses on postretirement plans, net of tax	(2,002)	(2,130)
Total accumulated other comprehensive loss	(12,511)	(13,909)
Total shareholders’ equity	414,366	391,547
Total liabilities and shareholders’ equity	$ 4,039,943	$ 3,864,230

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CONSOLIDATED STATEMENTS OF CONDITION (CURRENT PERIOD UNAUDITED) (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
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)	15,515,577	15,476,379
Common stock, outstanding (in shares)	15,515,577	15,476,379

XML

CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest Income
Interest and fees on loans	$ 29,350	$ 27,395	$ 84,835	$ 82,117
Interest on U.S. government and sponsored enterprise obligations	4,177	4,049	12,788	12,055
Interest on state and political subdivision obligations	686	702	2,079	2,127
Interest on federal funds sold and other investments	497	448	1,362	1,051
Total interest income	34,710	32,594	101,064	97,350
Interest Expense
Interest on deposits	3,027	2,204	8,568	6,355
Interest on borrowings	1,665	1,161	4,302	3,610
Interest on subordinated debentures	858	857	2,553	2,557
Total interest expense	5,550	4,222	15,423	12,522
Net interest income	29,160	28,372	85,641	84,828
Provision for credit losses	817	1,279	2,797	5,003
Net interest income after provision for credit losses	28,343	27,093	82,844	79,825
Non-Interest Income
Service charges on deposit accounts	1,852	1,799	5,632	5,356
Mortgage banking income, net	2,076	2,407	5,566	4,921
Debit card income	2,061	1,894	5,887	5,650
Income from fiduciary services	1,229	1,225	3,831	3,736
Bank-owned life insurance	603	585	1,750	1,899
Brokerage and insurance commissions	600	594	1,601	1,569
Other service charges and fees	589	591	1,558	1,494
Net gain on sale of securities	827	0	827	4
Other income	462	1,906	2,107	4,841
Total non-interest income	10,299	11,001	28,759	29,470
Non-Interest Expense
Salaries and employee benefits	12,359	12,044	36,882	35,634
Furniture, equipment and data processing	2,429	2,349	7,204	7,157
Net occupancy costs	1,599	1,685	5,234	5,352
Consulting and professional fees	714	742	2,412	2,609
Debit card expense	662	669	2,034	2,107
Regulatory assessments	574	667	1,607	2,162
Amortization of intangible assets	473	475	1,417	1,427
Other real estate owned and collection costs, net	258	877	558	2,029
Merger and acquisition costs	0	45	0	866
Other expenses	2,757	2,596	8,063	8,045
Total non-interest expense	21,825	22,149	65,411	67,388
Income before income tax expense	16,817	15,945	46,192	41,907
Income tax expense	5,478	5,042	14,543	12,742
Net Income	$ 11,339	$ 10,903	$ 31,649	$ 29,165
Per Share Data
Basic earnings per share (in dollars per share)	$ 0.72	$ 0.70	$ 2.03	$ 1.88
Diluted earnings per share (in dollars per share)	$ 0.72	$ 0.70	$ 2.02	$ 1.88
Weighted average number of common shares outstanding (in shares)	15,515,189	15,425,452	15,505,698	15,410,310
Diluted weighted average number of common shares outstanding (in shares)	15,589,008	15,507,561	15,580,072	15,483,320

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net Income		$ 11,339	$ 10,903	$ 31,649	$ 29,165
Net change in unrealized gains (losses) on available-for-sale securities:
Net change in unrealized gains (losses) on available-for-sale securities, net of tax of $142, $405, ($784) and ($5,599), respectively		(262)	(752)	1,458	10,399
Net reclassification adjustment for net gains included in net income, net of tax of $289, $0, $289 and $1, respectively(1)	[1]	(538)	0	(538)	(3)
Net change in unrealized gains (losses) on available-for-sale securities, net of tax		(800)	(752)	920	10,396
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract]
Net change in unrealized gains (losses) on cash flow hedging derivatives, net of tax of $43, ($107), $243 and $1,859, respectively		(80)	199	(452)	(3,453)
Net reclassification adjustment for effective portion of cash flow hedges, net of tax of ($128), ($187), ($432) and ($532), respectively(2)	[2]	238	347	802	989
Net change in unrealized gains (losses) on cash flow hedging derivatives, net of tax		158	546	350	(2,464)
Reclassification of amortization of net unrecognized actuarial loss and prior service cost, net of tax of ($23), ($20), ($69) and ($62), respectively(3)	[3]	42	39	128	115
Other comprehensive income (loss)		(600)	(167)	1,398	8,047
Comprehensive Income		$ 10,739	$ 10,736	$ 33,047	$ 37,212

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

[2] (2) Reclassified into the consolidated statements of income within interest expense.

[3] (3) Reclassified into the consolidated statements of income in salaries and employee benefits.

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net change in unrealized gains on available-for-sale securities, tax effect	$ 142	$ 405	$ (784)	$ (5,599)
Net reclassification adjustment, tax	289	0	289	1
Net change in unrealized gains (losses) on cash flow hedging derivatives, tax effect	43	(107)	243	1,859
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, tax effect	(128)	(187)	(432)	(532)
Reclassification of amortization of prior service cost included in net periodic cost, tax effect	$ (23)	$ (20)	$ (69)	$ (62)

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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, 2015	[1]		15,330,717
Beginning Balance at Dec. 31, 2015		$ 363,190	$ 153,083	$ 222,329	$ (12,222)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Stock Splits	[2]		(173)
Stockholders' Equity Note, Stock Split, Reduction of Capital	[2]	(5)	$ (5)
Net Income		29,165		29,165
Other comprehensive income, net of tax		8,047			8,047
Stock-based compensation expense		1,521	$ 1,521
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit (shares)	[1]		104,312
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings		593	$ 593
Cash dividends declared ($0.40 and $0.46 per share in six months ended June 30, 2016 and June 30, 2017)	[1]	(9,330)		(9,330)
Ending Balance (in shares) at Sep. 30, 2016	[1]		15,434,856
Ending Balance at Sep. 30, 2016		393,181	$ 155,264	242,092	(4,175)
Beginning Balance (in shares) at Dec. 31, 2015	[1]		15,330,717
Beginning Balance at Dec. 31, 2015		363,190	$ 153,083	222,329	(12,222)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment(2)	[3]	0	$ 72	(72)
Ending Balance (in shares) at Dec. 31, 2016	[1]		15,476,379
Ending Balance at Dec. 31, 2016		391,547	$ 156,041	249,415	(13,909)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		31,649
Other comprehensive income, net of tax		1,398			1,398
Stock-based compensation expense		1,135	$ 1,135
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit (shares)	[1]		39,198
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings		(615)	$ (615)
Cash dividends declared ($0.40 and $0.46 per share in six months ended June 30, 2016 and June 30, 2017)	[1]	(10,748)		(10,748)
Ending Balance (in shares) at Sep. 30, 2017	[1]		15,515,577.000
Ending Balance at Sep. 30, 2017		$ 414,366	$ 156,561	$ 270,316	$ (12,511)

[1] (1) Share and per share amounts as of December 31, 2015 have been adjusted to reflect the three-for-two stock split effective September 30, 2016.

[2] (3)In the third quarter of 2016, the Company paid shareholders cash in-lieu of fractional shares of common stock in connection with the three-for-two stock split effective September 30, 2016.

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

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical)	9 Months Ended
	Sep. 30, 2017 $ / shares	Sep. 30, 2016 $ / shares
Statement of Stockholders' Equity [Abstract]
Cash dividends declared, per share	$ 0.69	$ 0.60
Stock split conversion ratio	1.5

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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Operating Activities
Net Income	$ 11,339	$ 10,903	$ 31,649	$ 29,165
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	817	1,279	2,797	5,003	$ 5,258
Depreciation and amortization expense			2,789	3,498
Purchase accounting accretion, net			(2,204)	(3,792)
Investment securities amortization and accretion, net			2,350	2,234
Stock-based compensation expense			1,135	1,521
Amortization of intangible assets	473	475	1,417	1,427
Net gain on sale of investment securities			(827)	(4)
Net increase in other real estate owned valuation allowance and gain on disposition			60	147
Originations of mortgage loans held for sale			(148,661)	(180,182)
Proceeds from the sale of mortgage loans			155,086	170,765
Gain on sale of mortgage loans, net of origination costs			(4,323)	(4,171)
(Increase) decrease in other assets			(82)	7,533
Increase in other liabilities			1,325	154
Net cash provided by operating activities			42,391	33,004
Investing Activities
Proceeds from the sale and maturity of available-for-sale securities			124,548	105,863
Purchase of available-for-sale securities			(127,684)	(130,254)
Purchase of held-to-maturity securities			0	(10,448)
Net increase in loans			(153,629)	(101,732)
Purchase of bank-owned life insurance, net of death benefit proceeds			(7,000)	(16,122)
Purchase of Federal Home Loan Bank and Federal Reserve Bank stock			(8,304)	(7,341)
Proceeds from sale of Federal Home Loan Bank and Federal Reserve Bank stock			6,947	5,652
Proceeds from the sale of other real estate owned			641	672
Recoveries of previously charged-off loans			442	381
Purchase of premises and equipment			(2,378)	(1,507)
Proceeds from the sale of premises and equipment			137	90
Net cash used by investing activities			(166,280)	(154,746)
Financing Activities
Net increase in deposits			128,131	163,563
Net proceeds from borrowings less than 90 days			33,841	36,846
Repayments on Federal Home Loan Bank long-term advances			(20,000)	(25,000)
Repayments of wholesale repurchase agreements			(5,000)	(25,000)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings			(615)	593
Cash dividends paid on common stock			10,740	9,290
Net cash provided by financing activities			125,617	141,712
Net increase in cash and cash equivalents			1,728	19,970
Cash and cash equivalents at beginning of period			87,707	79,488	79,488
Cash and cash equivalents at end of period	$ 89,435	$ 99,458	89,435	99,458	$ 87,707
Supplemental information
Interest paid			15,383	12,673
Unsettled purchases of investment securities			13,954	0
Income taxes paid			11,559	4,844
Transfer from loans to other real estate owned			0	32
SBM Financial, Inc. acquisition measurement-period adjustments			$ 0	$ 960

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BASIS OF PRESENTATION

9 Months Ended

Sep. 30, 2017

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 September 30, 2017 and December 31, 2016, the consolidated statements of income for the three and nine months ended September 30, 2017 and 2016, the consolidated statements of comprehensive income for the three and nine months ended September 30, 2017 and 2016, the consolidated statements of changes in shareholders' equity for the nine months endedSeptember 30, 2017 and 2016, and the consolidated statements of cash flows for the nine months endedSeptember 30, 2017 and 2016. 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 and nine months ended September 30, 2017 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, 2016 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	GAAP:	Generally accepted accounting principles in the United States
ALCO:	Asset/Liability Committee	HPFC:	Healthcare Professional Funding Corporation, a wholly-owned subsidiary of Camden National Bank
ALL:	Allowance for loan losses	HTM:	Held-to-maturity
AOCI:	Accumulated other comprehensive income (loss)	IRS:	Internal Revenue Service
ASC:	Accounting Standards Codification	LIBOR:	London Interbank Offered Rate
ASU:	Accounting Standards Update	LTIP:	Long-Term Performance Share Plan
Bank:	Camden National Bank, a wholly-owned subsidiary of Camden National Corporation	Management ALCO:	Management Asset/Liability Committee
Board ALCO:	Board of Directors' Asset/Liability Committee	MBS:	Mortgage-backed security
BOLI:	Bank-owned life insurance	MSRs:	Mortgage servicing rights
BSA:	Bank Secrecy Act	MSPP:	Management Stock Purchase Plan
CCTA:	Camden Capital Trust A, an unconsolidated entity formed by Camden National Corporation	OTTI:	Other-than-temporary impairment
CDARS:	Certificate of Deposit Account Registry System	NIM:	Net interest margin on a fully-taxable basis
CDs:	Certificate of deposits	N.M.:	Not meaningful
CMO:	Collateralized mortgage obligation	OCC:	Office of the Comptroller of the Currency
CNWM:	Camden National Wealth Management, a division of Camden National Bank	OCI:	Other comprehensive income (loss)
Company:	Camden National Corporation	OFAC:	Office of Foreign Assets Control
DCRP:	Defined Contribution Retirement Plan	OREO:	Other real estate owned
EPS:	Earnings per share	SERP:	Supplemental executive retirement plans
FASB:	Financial Accounting Standards Board	TDR:	Troubled-debt restructured loan
FDIC:	Federal Deposit Insurance Corporation	UBCT:	Union Bankshares Capital Trust I, an unconsolidated entity formed by Union Bankshares Company that was subsequently acquired by Camden National Corporation
FHLB:	Federal Home Loan Bank	U.S.:	United States of America
FHLBB:	Federal Home Loan Bank of Boston	USD:	United States Dollar
FRB:	Board of Governors of the Federal Reserve System	2003 Plan:	2003 Stock Option and Incentive Plan
FRBB:	Federal Reserve Bank of Boston	2012 Plan:	2012 Equity and Incentive Plan
Freddie Mac:	Federal Home Loan Mortgage Corporation	2013 Repurchase Program:	2013 Common Stock Repurchase Program, approved by the Company's Board of Directors

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EARNINGS PER SHARE

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EPS

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

	Three Months Ended   September 30,						Nine Months Ended   September 30,
	2017			2016			2017			2016
Net income	$	11,339		$	10,903		$	31,649		$	29,165
Dividends and undistributed earnings allocated to participating securities(1)	(46		)	(54		)	(134		)	(134		)
Net income available to common shareholders	$	11,293		$	10,849		$	31,515		$	29,031
Weighted-average common shares outstanding for basic EPS	15,515,189			15,425,452			15,505,698			15,410,310
Dilutive effect of stock-based awards(2)	73,819			82,109			74,374			73,010
Weighted-average common and potential common shares for diluted EPS	15,589,008			15,507,561			15,580,072			15,483,320
Earnings per common share(1):
Basic EPS	$	0.72		$	0.70		$	2.03		$	1.88
Diluted EPS	$	0.72		$	0.70		$	2.02		$	1.88
Awards excluded from the calculation of diluted EPS(3):
Stock options	—			—			—			18,375

(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.

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

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

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

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

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SECURITIES

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

SECURITIES

SECURITIES

The following tables summarize 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
September 30, 2017
AFS Securities:
Obligations of states and political subdivisions	$	7,233	$	132	$	—		$	7,365
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	524,763		961		(4,620		)	521,104
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	267,096		131		(4,837		)	262,390
Subordinated corporate bonds	5,483		168		—			5,651
Total AFS debt securities	804,575		1,392		(9,457		)	796,510
Equity securities	623		118		—			741
Total AFS securities	$	805,198	$	1,510	$	(9,457	)	$	797,251
HTM Securities:
Obligations of states and political subdivisions	$	94,207	$	1,169	$	(282	)	$	95,094
Total HTM securities	$	94,207	$	1,169	$	(282	)	$	95,094
December 31, 2016
AFS Securities:
Obligations of states and political subdivisions	$	8,848	$	153	$	—		$	9,001
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	485,222		2,515		(7,115		)	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	289,046		265		(5,421		)	283,890
Subordinated corporate bonds	5,481		132		—			5,613
Total AFS debt securities	788,597		3,065		(12,536		)	779,126
Equity securities	632		109		—			741
Total AFS securities	$	789,229	$	3,174	$	(12,536	)	$	779,867
HTM Securities:
Obligations of states and political subdivisions	$	94,609	$	618	$	(631	)	$	94,596
Total HTM securities	$	94,609	$	618	$	(631	)	$	94,596

Net unrealized losses on AFS securities at September 30, 2017 included in AOCI amounted to $5.2 million, net of a deferred tax benefit of $2.7 million. Net unrealized losses on AFS securities at December 31, 2016 included in AOCI amounted to $6.1 million, net of a deferred tax benefit of $3.3 million.

During the first nine months of 2017, the Company purchased investment securities totaling $141.6 million, all of which were designated as AFS securities.

During the first nine months of 2016, the Company purchased investment securities totaling $140.7 million. The Company designated $130.3 million as AFS securities and $10.4 million as HTM securities.

Impaired Securities

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

The following table presents the estimated fair values and gross unrealized losses of investment securities that were in a continuous loss position at September 30, 2017 and December 31, 2016, by length of time that individual securities in each category have been in a continuous loss position:  

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
September 30, 2017
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	345,629	$	(3,127	)	$	47,553	$	(1,493	)	$	393,182	$	(4,620	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	134,761		(1,579		)	88,177		(3,258		)	222,938		(4,837		)
Total AFS securities	$	480,390	$	(4,706	)	$	135,730	$	(4,751	)	$	616,120	$	(9,457	)
HTM Securities:
Obligations of states and political subdivisions	$	15,234	$	(193	)	$	2,361	$	(89	)	$	17,595	$	(282	)
Total HTM securities	$	15,234	$	(193	)	$	2,361	$	(89	)	$	17,595	$	(282	)
December 31, 2016
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	348,579	$	(5,780	)	$	29,496	$	(1,335	)	$	378,075	$	(7,115	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	163,412		(2,906		)	74,212		(2,515		)	237,624		(5,421		)
Total AFS securities	$	511,991	$	(8,686	)	$	103,708	$	(3,850	)	$	615,699	$	(12,536	)
HTM Securities:
Obligations of states and political subdivisions	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)
Total HTM securities	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)

At September 30, 2017 and December 31, 2016, the Company held 177 and 209 investment securities with a fair value of $633.7 million and $658.5 million that were in an unrealized loss position totaling $9.7 million and $13.2 million, respectively, that were considered temporary. Of these, MBS and CMOs with a fair value of $135.7 million and $103.7 million were in an unrealized loss position, and have been in an unrealized loss position for 12 months or more, totaling $4.8 million and $3.9 million at September 30, 2017 and December 31, 2016, respectively. The unrealized loss was reflective of current interest rates in excess of the yield received on investments and is not indicative of an overall change in credit quality or other factors with the Company's investment portfolio. At September 30, 2017 and December 31, 2016, gross unrealized losses on the Company's AFS and HTM securities were 1.5% and 2.0%, respectively, of the respective investment securities fair value.

The Company has the intent and ability to retain its investment securities in an unrealized loss position at September 30, 2017 until the decline in value has recovered.

Sale of Securities

The following table details the Company's sales of AFS securities for the period indicated below:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
Proceeds from sales of securities	$	20,269		$	—	$	20,269		$	84
Gross realized gains	841			—		841			4
Gross realized losses	(14		)	—		(14		)	—

For the three and nine months ended September 30, 2017, the Company sold certain AFS securities with a total amortized cost of $19.4 million and recorded net gains on the sale of AFS securities of $827,000 within non-interest income in the consolidated statements of income. The Company had not previously recorded any OTTI on these securities sold.

For the nine months ended September 30, 2016, the Company sold certain AFS securities with a total amortized cost of $80,000 and recorded net gains on the sale of AFS securities of $4,000 within non-interest income in the consolidated statements of income. The Company had not previously recorded any OTTI on these securities sold.

The cost basis of securities sold is measured on a specific identification basis.

FHLBB and FRB Stock

As of September 30, 2017 and December 31, 2016, the Company's investment in FHLBB stock was $19.2 million and $17.8 million, respectively. As of September 30, 2017 and December 31, 2016, the Company's investment in FRB stock was $5.4 million.

Securities Pledged

At September 30, 2017 and December 31, 2016, securities with an amortized cost of $714.0 million and $597.3 million and estimated fair values of $707.2 million and $589.7 million, respectively, were pledged to secure FHLBB advances, public deposits, and securities sold under agreements to repurchase and for other purposes required or permitted by law.

Contractual Maturities

The amortized cost and estimated fair values of debt securities by contractual maturity at September 30, 2017, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. 

	Amortized Cost		Fair Value
AFS Securities
Due in one year or less	$	1,581	$	1,585
Due after one year through five years	100,951		100,901
Due after five years through ten years	176,090		175,368
Due after ten years	525,953		518,656
	$	804,575	$	796,510
HTM Securities
Due in one year or less	$	754	$	757
Due after one year through five years	4,737		4,798
Due after five years through ten years	7,011		7,121
Due after ten years	81,705		82,418
	$	94,207	$	95,094

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LOANS AND ALLOWANCE FOR LOAN LOSSES

9 Months Ended

Sep. 30, 2017

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 September 30, 2017 and December 31, 2016 was as follows:   

	September 30, 2017		December 31, 2016
Residential real estate	$	852,851	$	802,494
Commercial real estate	1,131,883		1,050,780
Commercial	369,155		333,639
Home equity	328,328		329,907
Consumer	18,123		17,332
HPFC	47,950		60,412
Total loans	$	2,748,290	$	2,594,564

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

	September 30, 2017			December 31, 2016
Net unamortized fair value mark discount on acquired loans	$	6,782		$	8,810
Net unamortized loan origination costs	(612		)	(66		)
Total	$	6,170		$	8,744

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

The HPFC loan portfolio consists of niche commercial lending to the small business medical field, including dentists, optometrists and veterinarians across the U.S. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the success of the borrower's business. Effective February 19, 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.

Effective January 1, 2017, the Company's internal policy for assessing individual loans for impairment was changed to increase the principal balance threshold for a loan from $250,000 to $500,000. The qualitative factors for assessing a loan individually for impairment in accordance with the Company's internal policy were unchanged, and continue to require the loan to be classified as substandard or doubtful and on non-accrual status. There were no other significant changes in the Company's ALL methodology during the nine months ended September 30, 2017.

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. The Company's Credit Risk Administration and the Credit Risk Policy Committee oversee the 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, effective February 19, 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 and nine months ended September 30, 2017 and 2016, and for the year ended December 31, 2016: 

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Three and Nine Months Ended September 30, 2017
ALL for the three months ended:
Beginning balance	$	4,481		$	12,848		$	4,275		$	2,094		$	182		$	514		$	24,394
Loans charged off	(238		)	(69		)	(369		)	(11		)	(28		)	(193		)	(908		)
Recoveries	26			25			59			1			9			5			125
Provision (credit)(1)	273			(8		)	256			93			32			156			802
Ending balance	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
ALL for the nine months ended:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans charged off	(433		)	(81		)	(650		)	(403		)	(90		)	(274		)	(1,931		)
Recoveries	30			138			254			2			13			5			442
Provision(1)	785			585			862			384			91			79			2,786
Ending balance	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
ALL balance attributable to loans:
Individually evaluated for impairment	$	464		$	1,470		$	—		$	—		$	—		$	—		$	1,934
Collectively evaluated for impairment	4,078			11,326			4,221			2,177			195			482			22,479
Total ending ALL	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
Loans:
Individually evaluated for impairment	$	4,792		$	6,373		$	1,842		$	423		$	—		$	—		$	13,430
Collectively evaluated for impairment	848,059			1,125,510			367,313			327,905			18,123			47,950			2,734,860
Total ending loans balance	$	852,851		$	1,131,883		$	369,155		$	328,328		$	18,123		$	47,950		$	2,748,290
For The Three and Nine Months Ended September 30, 2016
ALL for the three months ended:
Beginning balance	$	4,431		$	11,559		$	4,558		$	2,946		$	193		$	30		$	23,717
Loans charged off	—			(32		)	(1,541		)	(44		)	(19		)	(205		)	(1,841		)
Recoveries	1			7			118			—			1			—			127
Provision (credit)(1)	163			1,046			148			(335		)	(13		)	278			1,287
Ending balance	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
ALL for the nine months ended:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	21,166
Loans charged off	(229		)	(273		)	(1,970		)	(229		)	(60		)	(507		)	(3,268		)
Recoveries	72			50			252			2			5			—			381
Provision(1)	207			2,371			1,760			63			24			586			5,011
Ending balance	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
ALL balance attributable to loans:
Individually evaluated for impairment	$	511		$	1,284		$	—		$	88		$	—		$	74		$	1,957
Collectively evaluated for impairment	4,084			11,296			3,283			2,479			162			29			21,333
Total ending ALL	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
Loans:
Individually evaluated for impairment	$	4,551		$	13,286		$	2,243		$	489		$	7		$	106		$	20,682
Collectively evaluated for impairment	792,485			1,041,021			322,179			332,606			17,409			65,627			$	2,571,327
Total ending loans balance	$	797,036		$	1,054,307		$	324,422		$	333,095		$	17,416		$	65,733		$	2,592,009

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Year Ended December 31, 2016
ALL:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	21,166
Loans charged off	(356		)	(315		)	(2,218		)	(308		)	(101		)	(507		)	(3,805		)
Recoveries	95			50			332			2			7			—			486
Provision (credit)(1)	(124		)	1,987			2,400			(231		)	82			1,155			5,269
Ending balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
ALL balance attributable to loans:
Individually evaluated for impairment	$	483		$	1,373		$	—		$	86		$	—		$	65		$	2,007
Collectively evaluated for impairment	3,677			10,781			3,755			2,108			181			607			21,109
Total ending ALL	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans:
Individually evaluated for impairment	$	4,348		$	13,317		$	2,028		$	457		$	7		$	97		$	20,254
Collectively evaluated for impairment	798,146			1,037,463			331,611			329,450			17,325			60,315			2,574,310
Total ending loans balance	$	802,494		$	1,050,780		$	333,639		$	329,907		$	17,332		$	60,412		$	2,594,564

(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 September 30, 2017 and 2016, and December 31, 2016, the reserve for unfunded commitments was $22,000, $14,000 and $11,000, respectively.

The following reconciles the three and nine months ended September 30, 2017 and 2016, and year ended December 31, 2016 provision for loan losses to the provision for credit losses as presented on the consolidated statement of income:

	Three Months Ended   September 30,					Nine Months Ended   September 30,					Year Ended December 31, 2016
	2017		2016			2017		2016
Provision for loan losses	$	802	$	1,287		$	2,786	$	5,011		$	5,269
Change in reserve for unfunded commitments	15		(8		)	11		(8		)	(11		)
Provision for credit losses	$	817	$	1,279		$	2,797	$	5,003		$	5,258

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 September 30, 2017, the non-residential building operators' industry exposure was 11% of the Company's total loan portfolio and 27% of the total commercial real estate portfolio. There were no other industry exposures exceeding 10% of the Company's total loan portfolio as of September 30, 2017.

To further identify loans with similar risk profiles, the Company categorizes each portfolio segment into classes by credit risk characteristic and applies a credit quality indicator to each portfolio segment. The indicators for commercial, commercial real estate, 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
September 30, 2017
Pass (Grades 1-6)	$	841,539	$	1,086,856	$	361,343	$	—	$	—	$	45,920	$	2,335,658
Performing	—		—		—		326,702		18,123		—		344,825
Special Mention (Grade 7)	933		16,663		1,770		—		—		209		19,575
Substandard (Grade 8)	10,379		28,364		4,645		—		—		1,821		45,209
Doubtful (Grade 9)	—		—		1,397		—		—		—		1,397
Non-performing	—		—		—		1,626		—		—		1,626
Total	$	852,851	$	1,131,883	$	369,155	$	328,328	$	18,123	$	47,950	$	2,748,290
December 31, 2016
Pass (Grades 1-6)	$	789,554	$	1,003,386	$	321,148	$	—	$	—	$	58,943	$	2,173,031
Performing	—		—		—		328,287		17,328		—		345,615
Special Mention (Grade 7)	2,387		5,724		5,598		—		—		257		13,966
Substandard (Grade 8)	10,553		41,670		5,437		—		—		1,212		58,872
Doubtful (Grade 9)	—		—		1,456		—		—		—		1,456
Non-performing	—		—		—		1,620		4		—		1,624
Total	$	802,494	$	1,050,780	$	333,639	$	329,907	$	17,332	$	60,412	$	2,594,564

The Company closely monitors the performance of its loan portfolio. A loan is placed on non-accrual status when the financial condition of the borrower is deteriorating, payment in full of both principal and interest is not expected as scheduled or principal or interest has been in default for 90 days or more. Exceptions may be made if the asset is well-secured by collateral sufficient to satisfy both the principal and accrued interest in full and collection is reasonably assured. When one loan to a borrower is placed on non-accrual status, all other loans to the borrower are re-evaluated to determine if they should also be placed on non-accrual status. All previously accrued and unpaid interest is reversed at this time. A loan 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
September 30, 2017
Residential real estate	$	3,308	$	157	$	3,393	$	6,858	$	845,993	$	852,851	$	—	$	4,465
Commercial real estate	1,036		1,260		5,761		8,057		1,123,826		1,131,883		—		5,887
Commercial	721		—		1,484		2,205		366,950		369,155		—		1,830
Home equity	1,022		284		1,375		2,681		325,647		328,328		—		1,626
Consumer	29		15		—		44		18,079		18,123		—		—
HPFC	646		834		297		1,777		46,173		47,950		—		838
Total	$	6,762	$	2,550	$	12,310	$	21,622	$	2,726,668	$	2,748,290	$	—	$	14,646
December 31, 2016
Residential real estate	$	1,783	$	924	$	2,904	$	5,611	$	796,883	$	802,494	$	—	$	3,945
Commercial real estate	855		223		12,625		13,703		1,037,077		1,050,780		—		12,849
Commercial	633		218		1,675		2,526		331,113		333,639		—		2,088
Home equity	892		134		1,321		2,347		327,560		329,907		—		1,620
Consumer	38		—		4		42		17,290		17,332		—		4
HPFC	438		688		110		1,236		59,176		60,412		—		207
Total	$	4,639	$	2,187	$	18,639	$	25,465	$	2,569,099	$	2,594,564	$	—	$	20,713

Interest income that would have been recognized if loans on non-accrual status had been current in accordance with their original terms was $187,000, $673,000, $251,000, and $675,000 for the three and nine months ended September 30, 2017 and 2016, 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
	September 30, 2017	December 31, 2016	September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016
Residential real estate	25	21	$	3,728	$	3,221	$	464	$	483
Commercial real estate	3	3	987		1,008		19		—
Commercial	8	10	1,393		1,502		—		—
Home equity	2	1	308		16		—		—
Total	38	35	$	6,416	$	5,747	$	483	$	483

At September 30, 2017, the Company had performing and non-performing TDRs with a recorded investment balance of $5.2 million and $1.3 million, respectively. At December 31, 2016, the Company had performing and non-performing TDRs with a recorded investment balance of $4.3 million and $1.4 million, respectively.

The following represents loan modifications that qualify as TDRs that occurred for the three and nine months ended September 30, 2017 and 2016:

	Number of Contracts		Pre-Modification Outstanding Recorded Investment				Post-Modification Outstanding Recorded Investment				Specific Reserve
	2017	2016	2017		2016		2017		2016		2017		2016
For the three months ended
Commercial:
Maturity concession	—	6	$	—	$	1,344	$	—	$	1,652	$	—	$	—
Residential real estate:
Interest rate concession	1	—	134		—		145		—		—		—
Maturity concession	1	—	147		—		147		—		—		—
Interest rate and maturity concession	1	—	148		—		156		—		29		—
Total	3	6	$	429	$	1,344	$	448	$	1,652	$	29	$	—
For the nine months ended
Commercial:
Maturity concession	—	6	$	—	$	1,344	$	—	$	1,652	$	—	$	—
Residential real estate:
Interest rate concession	1	—	134		—		145		—		—		—
Maturity concession	2	—	298		—		298		—		15		—
Interest rate and maturity concession	1	—	148		—		156		—		29		—
Home equity:
Interest rate and maturity concession	1	—	315		—		315		—		—		—
Total	5	6	$	895	$	1,344	$	914	$	1,652	$	44	$	—

For the three and nine months endedSeptember 30, 2017 and 2016, 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 and nine months ended September 30, 2017 and 2016, and as of and for the year-ended December 31, 2016:

							Three Months Ended					Nine Months Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized(1)			Average Recorded Investment		Interest Income Recognized
September 30, 2017:
With an allowance recorded:
Residential real estate	$	3,262	$	3,262	$	464	$	3,194	$	48		$	3,084	$	103
Commercial real estate	5,589		5,589		1,470		6,590		4			10,048		15
Commercial	—		—		—		82		—			41		—
Home equity	—		—		—		—		—			167		—
Consumer	—		—		—		—		—			—		—
HPFC	—		—		—		—		—			33		—
Ending balance	8,851		8,851		1,934		9,866		52			13,373		118
Without an allowance recorded:
Residential real estate	1,530		1,949		—		1,427		15			1,349		15
Commercial real estate	784		1,032		—		794		15			1,250		22
Commercial	1,842		3,015		—		1,891		(6		)	1,959		8
Home equity	423		482		—		440		1			271		6
Consumer	—		—		—		—		(4		)	3		—
HPFC	—		—		—		—		—			—		—
Ending balance	4,579		6,478		—		4,552		21			4,832		51
Total impaired loans	$	13,430	$	15,329	$	1,934	$	14,418	$	73		$	18,205	$	169
September 30, 2016:
With an allowance recorded:
Residential real estate	$	3,041	$	3,041	$	511	$	3,050	$	56		$	3,108	$	81
Commercial real estate	11,354		11,354		1,284		7,582		—			3,092		—
Commercial	—		—		—		1,782		—			1,016		—
Home equity	302		302		88		303		—			307		—
Consumer	—		—		—		—		—			—		—
HPFC	106		106		74		35		—			97		—
Ending Balance	14,803		14,803		1,957		12,752		56			7,620		81
Without an allowance recorded:
Residential real estate	1,510		1,996		—		1,731		7			2,275		7
Commercial real estate	1,932		2,427		—		2,015		33			2,322		37
Commercial	2,243		4,667		—		1,354		(11		)	2,639		12
Home equity	187		374		—		188		3			181		—
Consumer	7		10		—		7		4			7		—
HPFC	—		—		—		—		—			—		—
Ending Balance	5,879		9,474		—		5,295		36			7,424		56
Total impaired loans	$	20,682	$	24,277	$	1,957	$	18,047	$	92		$	15,044	$	137

(1) Negative interest income represents the re-allocation of income between "with an allowance recorded" and "without an allowance recorded" (or vice versa) during the period.

							Year Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2016:
With an allowance recorded:
Residential real estate	$	3,019	$	3,019	$	483	$	3,088	$	106
Commercial real estate	11,443		11,443		1,373		5,165		—
Commercial	—		—		—		762		—
Home equity	299		299		86		305		—
Consumer	—		—		—		—		—
HPFC	97		97		65		98		—
Ending Balance	14,858		14,858		2,007		9,418		106
Without an allowance recorded:
Residential real estate	1,329		1,800		—		2,057		9
Commercial real estate	1,874		2,369		—		2,214		51
Commercial	2,028		3,209		—		2,507		16
Home equity	158		368		—		180		—
Consumer	7		10		—		12		—
HPFC	—		—		—		—		—
Ending Balance	5,396		7,756		—		6,970		76
Total impaired loans	$	20,254	$	22,614	$	2,007	$	16,388	$	182

Loan Sales:

For the three and nine months ended September 30, 2017 and 2016, the Company sold $59.9 million, $150.8 million, $71.4 million, and $166.6 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 $1.6 million, $4.3 million, $2.0 million, and $4.2 million, respectively.

At September 30, 2017 and December 31, 2016, the Company had certain residential mortgage loans with a principal balance of $13.0 million and $15.1 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 September 30, 2017 and December 31, 2016, recorded an unrealized loss of $26,000 and $289,000, respectively. For the three and nine months ended September 30, 2017 and 2016, the Company recorded within mortgage banking income, net on its consolidated statements of income the net change in unrealized gains (losses) of $72,000, $263,000, $(55,000), and $99,000, 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 September 30, 2017 and December 31, 2016. The fair value of its forward delivery commitments at September 30, 2017 and December 31, 2016 was $313,000 and $278,000, respectively. For the three months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income was $16,000 and $0, respectively. For the nine months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income was $35,000 and $0, respectively. Refer to Note 12 for further discussion of the Company's forward delivery commitments.

In-Process Foreclosure Proceedings:

At September 30, 2017 and December 31, 2016, the Company had $2.2 million and $1.4 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 September 30, 2017 and December 31, 2016.

Refer to Notes 3 and 10 of the consolidated financial statements for discussion of securities pledged as collateral.

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GOODWILL AND OTHER INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND OTHER INTANGIBLE ASSETS

GOODWILL AND OTHER INTANGIBLE ASSETS

The Company has recognized goodwill and certain identifiable intangible assets in connection with certain business combinations in prior years.

Goodwill as of September 30, 2017 and December 31, 2016 for each reporting unit is shown in the table below:

	Goodwill
	Banking		Financial Services			Total
September 30, 2017 and December 31, 2016:
Goodwill, gross	$	90,793	$	7,474		$	98,267
Accumulated impairment losses	—		(3,570		)	(3,570		)
Reported goodwill at September 30, 2017 and December 31, 2016	$	90,793	$	3,904		$	94,697

The changes in core deposit and trust relationship intangible assets for the nine months ended September 30, 2017 are shown in the table below:

	Core Deposit Intangible								Trust Relationship Intangible
	Gross		Accumulated Amortization			Net			Gross		Accumulated Amortization			Net			Total
Balance at December 31, 2016	$	23,908	$	(17,220	)	$	6,688		$	753	$	(677	)	$	76		$	6,764
2017 amortization	—		(1,360		)	(1,360		)	—		(57		)	(57		)	(1,417		)
Balance at September 30, 2017	$	23,908	$	(18,580	)	$	5,328		$	753	$	(734	)	$	19		$	5,347

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

	Core Deposit Intangible		Trust Relationship Intangible		Total
2017	$	375	$	19	$	394
2018	725		—		725
2019	705		—		705
2020	682		—		682
2021	655		—		655
Thereafter	2,186		—		2,186
Total	$	5,328	$	19	$	5,347

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REGULATORY CAPITAL REQUIREMENTS

9 Months Ended

Sep. 30, 2017

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, 2017, the Company and Bank were required to establish a capital conservation buffer of 1.25%, increasing the minimum required total risk-based capital, Tier I risk-based and common equity Tier I capital to risk-weighted assets they must maintain to avoid limits on capital distributions and certain bonus payments to executive officers and similar employees.

The Company and Bank's risk-based capital ratios exceeded regulatory guidelines at September 30, 2017 and December 31, 2016, 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 September 30, 2017 that would change the Company or Bank's regulatory capital capitalization. The following table presents the Company and Bank's regulatory capital ratios at the periods indicated:

	September 30, 2017				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions		December 31, 2016				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions
	Amount		Ratio						Amount		Ratio
Camden National Corporation:
Total risk-based capital ratio	$	392,660	14.09	%	9.25	%	N/A		$	368,856	14.04	%	8.63	%	N/A
Tier I risk-based capital ratio	353,225		12.67	%	7.25	%	N/A		330,729		12.59	%	6.63	%	N/A
Common equity Tier I risk-based capital ratio	314,218		11.28	%	5.75	%	N/A		296,120		11.27	%	5.13	%	N/A
Tier I leverage capital ratio	353,225		9.01	%	4.00	%	N/A		330,729		8.83	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	360,174	12.88	%	9.25	%	10.00	%	$	340,908	12.92	%	8.63	%	10.00	%
Tier I risk-based capital ratio	335,739		12.01	%	7.25	%	8.00	%	317,782		12.05	%	6.63	%	8.00	%
Common equity Tier I risk-based capital ratio	335,739		12.01	%	5.75	%	6.50	%	317,782		12.05	%	5.13	%	6.50	%
Tier I leverage capital ratio	335,739		8.60	%	4.00	%	5.00	%	317,782		8.54	%	4.00	%	5.00	%

On October 8, 2015, the Company issued $15.0 million of 10 year subordinated debentures bearing interest at an annual rate of 5.50%. In addition, $43.0 million of junior subordinated debentures were issued in connection with the issuance of trust preferred securities in 2006 and 2008. Although the subordinated debentures and the junior subordinated debentures are recorded as liabilities on the Company's consolidated statements of condition, the Company is permitted, in accordance with regulatory guidelines, to include, subject to certain limits, each within its calculation of risk-based capital. At September 30, 2017 and December 31, 2016, $15.0 million of subordinated debentures were included as Tier II capital and were included in the calculation of the Company's total risk-based capital, and, at September 30, 2017 and December 31, 2016, $43.0 million of the junior subordinated debentures were included in Tier I and total risk-based capital for the Company.

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

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INCOME TAXES

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The Company's effective income tax rate for the three and nine months ended September 30, 2017 and 2016 was as follows:

	Three Months Ended   September 30,						Nine Months Ended   September 30,
	2017			2016			2017			2016
Income tax expense	$	5,478		$	5,042		$	14,543		$	12,742
Income before income tax expense	$	16,817		$	15,945		$	46,192		$	41,907
Effective tax rate	32.6		%	31.6		%	31.5		%	30.4		%
Discrete period item(s) — impact on effective tax rate:
Windfall tax benefits, net(1)	(0.2		)%	(0.4		)%	(0.4		)%	(1.0		)%
BOLI death benefit income (non-taxable)	—		%	—		%	—		%	(0.3		)%

(1) Represents the net windfall tax benefits generated upon vesting of share-based awards issued and exercise of stock options that were accounted for within income tax expense on the consolidated statements of income as a discrete period item.

During the three months ended September 30, 2017, the IRS completed its examination of the Company's 2013 and 2014 federal income tax returns that resulted in no material changes to the Company's consolidated financial statements.

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EMPLOYEE BENEFIT PLANS

9 Months Ended

Sep. 30, 2017

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 period benefit cost for the periods ended September 30, 2017 and 2016 were as follows:

Supplemental Executive Retirement Plan:

	Three Months Ended   September 30,				Nine Months Ended   September 30,
Net periodic benefit cost	2017		2016		2017		2016
Service cost	$	84	$	77	$	252	$	231
Interest cost	113		108		339		324
Recognized net actuarial loss	61		55		185		165
Recognized prior service cost	—		2		—		6
Net period benefit cost(1)	$	258	$	242	$	776	$	726

(1) Presented within the consolidated statements of income within salaries and employee benefits.

Other Postretirement Benefit Plan:

	Three Months Ended   September 30,						Nine Months Ended   September 30,
Net periodic benefit cost	2017			2016			2017			2016
Service cost	$	13		$	15		$	39		$	45
Interest cost	36			38			108			114
Recognized net actuarial loss	10			8			30			24
Amortization of prior service credit	(6		)	(6		)	(18		)	(18		)
Net period benefit cost(1)	$	53		$	55		$	159		$	165

(1) Presented within the consolidated statements of income within salaries and employee benefits.

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BORROWINGS

9 Months Ended

Sep. 30, 2017

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:

	September 30, 2017		December 31, 2016
Short-Term Borrowings (mature within one year):
Customer repurchase agreements	$	265,627	$	225,605
FHLBB borrowings	270,000		210,000
Overnight borrowings	3,300		89,450
Wholesale repurchase agreements	—		5,007
Capital lease obligation	70		67
Total short-term borrowings	$	538,997	$	530,129
Long-Term Borrowings (maturity greater than one year):
FHLBB borrowings	$	10,000	$	10,000
Capital lease obligation	738		791
Total long-term borrowings	$	10,738	$	10,791

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REPURCHASE AGREEMENTS

9 Months Ended

Sep. 30, 2017

Banking and Thrift [Abstract]

REPURCHASE AGREEMENTS

REPURCHASE AGREEMENTS

The Company can raise additional liquidity by entering into repurchase agreements at its discretion. In a security repurchase agreement transaction, the Company will generally sell a security, agreeing to repurchase either the same or substantially identical security on a specified later date, at a greater price than the original sales price. The difference between the sale price and purchase price is the cost of the proceeds, which is recorded as interest expense on the consolidated statement of income. The securities underlying the agreements are delivered to counterparties as security for the repurchase obligations. 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 September 30, 2017 and December 31, 2016:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
September 30, 2017
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	451	$	—	$	—	$	—	$	451
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	168,103		—		—		—		168,103
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	97,073		—		—		—		97,073
Total Customer Repurchase Agreements	265,627		—		—		—		265,627
Total Wholesale Repurchase Agreements	—		—		—		—		—
Total Repurchase Agreements	$	265,627	$	—	$	—	$	—	$	265,627
December 31, 2016
Customer Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	117,784	$	—	$	—	$	—	$	117,784
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	107,821		—		—		—		107,821
Total Customer Repurchase Agreements	225,605		—		—		—		225,605
Wholesale Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	—		—		3,715		—		3,715
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	—		—		1,292		—		1,292
Total Wholesale Repurchase Agreements	—		—		5,007		—		5,007
Total Repurchase Agreements	$	225,605	$	—	$	5,007	$	—	$	230,612

Certain customers held CDs totaling $919,000 and $917,000 with the Bank at September 30, 2017 and December 31, 2016, respectively, that were collateralized by CMO and MBS securities that were overnight repurchase agreements.

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

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FAIR VALUE MEASUREMENT AND DISCLOSURE

9 Months Ended

Sep. 30, 2017

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.

AFS Securities:  The fair value of debt AFS securities is reported utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value of debt securities are classified as Level 2.

The fair value of equity AFS securities is reported utilizing market prices based on recent trading activity and dealer quotes. The equity securities are traded on inactive markets and are classified as Level 2.

Derivatives:  The fair value of the Company's interest rate swaps, including its junior subordinated debt interest rate swaps, FHLBB advance interest rate swaps and customer loan swaps, are determined using inputs that are observable in the market place obtained from third parties including yield curves, publicly available volatilities, and floating indexes and, accordingly, are classified as Level 2 inputs. The credit value adjustments associated with derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. As of September30, 2017 and December 31, 2016, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives due to collateral postings.

The fair value of the Company's fixed rate interest rate lock commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, adjusted for the Company's pull-through rate estimate (i.e. estimate of loans within its pipeline that will ultimately complete the origination process and be funded). The Company has classified its fixed rate interest rate lock commitments as Level 2 as the quoted secondary market prices are the more significant input, and while the Company's internal pull-through rate estimate is a Level 3 estimate it is not as critical to the ultimate valuation.

The fair value of the Company's forward delivery commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, and the locked and agreed to price with the secondary market investor. The Company has classified its fixed rate interest rate lock commitments as Level 2.

The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
September 30, 2017
Financial assets:
Loans held for sale	$	12,997	$	—	$	12,997	$	—
AFS securities:
Obligations of states and political subdivisions	7,365		—		7,365		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	521,104		—		521,104		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	262,390		—		262,390		—
Subordinated corporate bonds	5,651		—		5,651		—
Equity securities	741		—		741		—
Customer loan swaps	3,482		—		3,482		—
Fixed-rate interest rate lock commitments	495		—		495		—
Forward delivery commitments	332		—		332		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123		—		8,123		—
FHLBB advance interest rate swaps	98		—		98		—
Customer loan swaps	3,482		—		3,482		—
Fixed-rate interest rate lock commitments	25		—		25		—
Forward delivery commitments	19		—		19		—
December 31, 2016
Financial assets:
Loans held for sale	$	14,836	$	—	$	14,836	$	—
AFS securities:
Obligations of states and political subdivisions	9,001		—		9,001		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	480,622		—		480,622		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	283,890		—		283,890		—
Subordinated corporate bonds	5,613		—		5,613		—
Equity securities	741		—		741		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate interest rate lock commitments	202		—		202		—
Forward delivery commitments	587		—		587		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,372		—		8,372		—
FHLBB advance interest rate swaps	389		—		389		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate interest rate lock commitments	15		—		15		—
Forward delivery commitments	309		—		309		—

The Company did not have any transfers between Level 1 and Level 2 of the fair value hierarchy during the nine months ended September 30, 2017. The Company’s policy for determining transfers between levels occurs at the end of the reporting period when circumstances in the underlying valuation criteria change and result in transfer between levels.

Financial Instruments Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain financial assets and financial liabilities at fair value on a nonrecurring basis in accordance with GAAP. These include assets that are measured at the lower of cost or 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.

MSRs:  The Company accounts for mortgage servicing assets at cost, subject to impairment testing. When the carrying value of a tranche exceeds fair value, a valuation allowance is established to reduce the carrying cost to fair value. Fair value is based on a valuation model that calculates the present value of estimated net servicing income. The Company obtains a third-party valuation based upon loan level data including note rate, type and term of the underlying loans. The model utilizes two significant unobservable inputs, which are loan prepayment assumptions and the discount rate used, to calculate the fair value of each tranche, and, as such, the Company has classified within Level 3 of the fair value hierarchy.

Non-Financial Assets and Non-Financial Liabilities Recorded at Fair Value on a 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 nine months ended September 30, 2017 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 nine months ended September 30, 2017 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 September 30, 2017 and December 31, 2016.

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
September 30, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,276	$	—	$	—	$	3,276
MSRs(1)	330		—		—		330
Non-financial assets:
OREO	341		—		—		341
December 31, 2016
Financial assets:
Collateral-dependent impaired loans	$	500	$	—	$	—	$	500
MSRs(1)	1,090		—		—		1,090
Non-financial assets:
OREO	922		—		—		922

(1) Represents MSRs deemed to be impaired and a valuation allowance was established to carry at fair value.

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a non-recurring basis at September 30, 2017 and December 31, 2016:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
September 30, 2017
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0-50%	(9%)
				Estimated selling costs	0 - 10%	(3%)
Specifically reserved	3,110		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
MSR	330		Discounted cash flow	Prepayment rate	14%	(14%)
				Discount rate	7%	(7%)
OREO	341		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling cost	10%	(10%)
December 31, 2016
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	0 - 10%	(5%)
Specifically reserved	344		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(13%)
				Estimated selling costs	10 - 28%	(12%)
MSR	1,090		Discounted cash flow	Prepayment rate	15%	(15%)
				Discount rate	8%	(8%)
OREO	922		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 73%	(7%)
				Estimated selling costs	10%	(10%)

GAAP requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The following methods and assumptions were used by the Company in estimating the fair values of its other financial instruments.

Cash and Due from Banks:  The carrying amounts reported in the consolidated statements of condition approximate fair value.

HTM securities:  The fair value is estimated utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value is classified as Level 2.

Loans:  For variable rate loans that reprice frequently and have no significant change in credit risk, fair values are based on carrying values. The fair value of other loans is estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities.

Interest Receivable and Payable:  The carrying amounts reported in the consolidated statements of condition approximate fair value.

Deposits:  The fair value of demand, interest checking, savings and money market deposits is determined as the amount payable on demand at the reporting date. The fair value of time deposits is estimated by discounting the estimated future cash flows using market rates offered for deposits of similar remaining maturities.

Borrowings:  The carrying amounts of short-term borrowings from the FHLBB, securities sold under repurchase agreements, notes payable and other short-term borrowings approximate fair value. The fair values of long-term borrowings and commercial repurchase agreements are based on the discounted cash flows using current rates for advances of similar remaining maturities.

Subordinated Debentures:  The fair values of are based on quoted prices from similar instruments in inactive markets.

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities measured at September 30, 2017: 

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	89,435	$	89,435	$	89,435	$	—	$	—
AFS securities	797,251		797,251		—		797,251		—
HTM securities	94,207		95,094		—		95,094		—
Loans held for sale	12,997		12,997		—		12,997		—
Residential real estate loans(1)	848,309		854,198		—		—		854,198
Commercial real estate loans(1)	1,119,087		1,082,977		—		—		1,082,977
Commercial loans(1)(2)	412,402		409,833		—		—		409,833
Home equity loans(1)	326,151		323,943		—		—		323,943
Consumer loans(1)	17,928		17,465		—		—		17,465
MSRs(3)	1,109		1,740		—		—		1,740
Interest receivable	9,415		9,415		—		9,415		—
Customer loan swaps	3,482		3,482		—		3,482		—
Fixed-rate interest rate lock commitments	495		495		—		495		—
Forward delivery commitments	332		332		—		332		—
Financial liabilities:
Deposits	$	2,956,413	$	2,953,386	$	—	$	2,953,386	$	—
Short-term borrowings	538,997		538,861		—		538,861		—
Long-term borrowings	10,738		10,816		—		10,816		—
Subordinated debentures	58,872		42,090		—		42,090		—
Interest payable	574		574		—		574		—
Junior subordinated debt interest rate swaps	8,123		8,123		—		8,123		—
FHLBB advance interest rate swaps	98		98		—		98		—
Customer loan swaps	3,482		3,482		—		3,482		—
Fixed-rate interest rate lock commitments	25		25		—		25		—
Forward delivery commitments	19		19		—		19		—

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

(2) Includes the HPFC loan portfolio.

(3) Reported fair value represents all MSRs currently being serviced by the Company.

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities measured at December 31, 2016:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	87,707	$	87,707	$	87,707	$	—	$	—
AFS securities	779,867		779,867		—		779,867		—
HTM securities	94,609		94,596		—		94,596		—
Loans held for sale	14,836		14,836		—		14,836		—
Residential real estate loans(1)	798,334		800,122		—		—		800,122
Commercial real estate loans(1)	1,038,626		1,006,249		—		—		1,006,249
Commercial loans(1)(2)	389,624		391,493		—		—		391,493
Home equity loans(1)	327,713		327,292		—		—		327,292
Consumer loans(1)	17,151		16,845		—		—		16,845
MSRs(3)	1,210		1,701		—		—		1,701
Interest receivable	8,654		8,654		—		8,654		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate interest rate lock commitments	202		202		—		202		—
Forward delivery commitments	587		587		—		587		—
Financial liabilities:
Deposits	$	2,828,529	$	2,826,484	$	—	$	2,826,484	$	—
Short-term borrowings	530,129		530,435		—		530,435		—
Long-term borrowings	10,791		10,836		—		10,836		—
Subordinated debentures	58,755		41,660		—		41,660		—
Interest payable	534		534		—		534		—
Junior subordinated debt interest rate swaps	8,372		8,372		—		8,372		—
FHLBB advance interest rate swaps	389		389		—		389		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate interest rate lock commitments	15		15		—		15		—
Forward delivery commitments	309		309		—		309		—

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

(2) Includes the HPFC loan portfolio.

(3) Reported fair value represents all MSRs currently being serviced by the Company.

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COMMITMENTS, CONTINGENCIES AND DERIVATIVES

9 Months Ended

Sep. 30, 2017

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 September 30, 2017 and December 31, 2016, 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:

	September 30, 2017		December 31,   2016
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	461,731	$	454,225
Commercial and commercial real estate	75,972		83,103
Residential	39,128		17,795
Letters of credit	3,054		2,580
Other commitments	394		432
Derivative Financial Instruments:
Customer loan swaps	$	592,090	$	532,526
FHLBB advance interest rate swaps	50,000		50,000
Junior subordinated debt interest rate swaps	43,000		43,000
Interest rate lock commitments	26,182		15,249
Forward delivery commitments	13,023		15,125

Lending-Related Instruments

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

Derivative Financial Instruments

The Company uses derivative financial instruments for risk management purposes (primarily interest rate risk) and not for trading or speculative purposes. The Company controls the credit risk of these instruments through collateral, credit approvals and monitoring procedures. Additionally, as part of Company's normal mortgage origination process, it provides the borrower with the option to lock their interest rate based on current market prices. During the period from commitment date to the loan closing date, the Company is subject to the risk of interest rate change. In an effort to mitigate such risk, the Company may enter into forward delivery sales commitments, typically on a "best 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 OCI, 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 OCI 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.

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 September 30, 2017, the Company had $9.1 million of cash posted as collateral to the counterparty. The collateral posted by the Company was not readily available and has been presented within cash and due from banks on the consolidated statements of condition.

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

						September 30, 2017			December 31,   2016
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)			Fair Value(1)
$	10,000	3/18/2009	6/30/2021	3-Month USD LIBOR	5.09%	$	(670	)	$	(806	)
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	(2,268		)	(2,321		)
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	(2,253		)	(2,290		)
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	5.75%	(1,198		)	(1,211		)
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	5.56%	(1,734		)	(1,744		)
$	43,000					$	(8,123	)	$	(8,372	)

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

For the three and nine months endedSeptember 30, 2017 and 2016, 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 nine months endedSeptember 30, 2017 and 2016 were $981,000 and $1.2 million, respectively, and were classified as cash flows from operating activities in the Company's consolidated statements of cash flows.

FHLBB Advance Interest Rate Swaps:

The Bank has two interest rate swap arrangements with a counterparty on two tranches of 30-day FHLBB advances with a total notional amount of $50.0 million. Each derivative arrangement commenced on February 25, 2016, with one contract set to expire on February 25, 2018 and the other 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 and nine months endedSeptember 30, 2017 and 2016, 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 September 30, 2017, the Bank had $1.2 million of cash held at a correspondent bank as collateral on its FHLBB advance interest rate swap and customer loan swap contracts.

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

						September 30, 2017			December 31,   2016
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%	$	(24	)	$	(152	)
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	(74		)	(237		)
$	50,000					$	(98	)	$	(389	)

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

Net payments to the counterparty for the nine months endedSeptember 30, 2017 and 2016 were $241,000 and $351,000, respectively, and were classified as cash flows from operating activities in the consolidated statements of cash flows.

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:

		September 30, 2017						December 31, 2016
	Balance Sheet Location	Number of Positions	Notional		Fair Value			Number of Positions	Notional		Fair Value
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	29	$	145,292	$	(3,482	)	50	$	266,263	$	(1,945	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	30	150,753		2,618			—	—		—
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	59	296,045		864			50	266,263		1,945
Total		118	$	592,090	$	—		100	$	532,526	$	—

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

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. Our pipeline of mortgage loans with fixed-rate interest rate lock commitments were as follows for the periods indicated:

		September 30, 2017					December 31, 2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other Assets	$	23,052	$	495		$	12,310	$	202
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	3,130		(25		)	2,939		(15		)
Total		$	26,182	$	470		$	15,249	$	187

For the three months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's mortgage interest rate locks reported within mortgage banking income, net, on the consolidated statements of income were $60,000 and $226,000, respectively. For the nine months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's mortgage interest rate locks were $283,000 and $610,000, respectively.

Forward Delivery Commitments:

The Company typically enters into a forward delivery commitment with a secondary market investor, which has been approved by the Company within its normal governance process, at the onset of the loan origination process. The Company may enter into these arrangements with the secondary market investors on a "best effort" or "mandatory delivery" basis. The Company's normal practice 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:

		September 30, 2017					December 31, 2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best effort")	Other Assets	$	11,348	$	332		$	14,250	$	587
Forward delivery commitments ("best effort")	Accrued interest and other liabilities	1,675		(19		)	875		(309		)
Total		$	13,023	$	313		$	15,125	$	278

For the three months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income were $16,000 and $0, respectively. For the nine months ended September 30, 2017 and 2016, the net unrealized gain from the change in fair value on the Company's forward delivery commitments reported within mortgage banking income, net on the consolidated statements of income were $35,000 and $0, respectively.

The table below presents the effect of the Company’s derivative financial instruments included in OCI and current earnings for the periods indicated:

	For The Three Months Ended September 30,					For The Nine Months Ended September 30,
	2017			2016		2017			2016
Derivatives designated as cash flow hedges:
Effective portion of unrealized gains (losses) recognized within AOCI during the period, net of tax	$	(80	)	$	199	$	(452	)	$	(3,453	)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	366		$	534	$	1,234		$	1,521

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

The Company expects approximately $1.2 million (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 September 30, 2017.

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RECENT ACCOUNTING PRONOUNCEMENTS

9 Months Ended

Sep. 30, 2017

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

RECENT ACCOUNTING PRONOUNCEMENTS

RECENT ACCOUNTING PRONOUNCEMENTS

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

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

The scope of ASU 2014-09 specifically excludes financial instruments and other contractual rights or obligations within the scope of ASC 310, Receivables; ASC 320, Investments - Debit and Equity Securities; ASC 815, Derivatives and Hedging; and certain other ASC topics. As such, many significant revenue streams of the Company, including interest income, fair value adjustments, gains and losses on sale of financial instruments, and loan origination fees, are not within the scope of ASU 2014-09. Additionally, the FASB's Transition Resource Group for Revenue Recognition put forth a white paper specific to scoping considerations for financial institutions that concluded that servicing arrangements that are within the scope of ASC 860, Transfers and Servicing, are not within the scope of ASU 2014-09. The FASB's Transition Resource Group also concluded that deposit-related fees are within the scope of ASU 2014-09.

The Company is currently performing an overall assessment of its revenue streams and has identified those potentially affected by ASU 2014-09, including (i) deposit-related fees; (ii) interchange income; and (iii) asset management, brokerage and trust fees. In evaluating the revenue streams and contracts, the Company does not expect the adoption of ASU 2014-09 to have a material impact on the timing or recognition of its revenue streams determined to be within scope.

In combination with the overall assessment of the Company's revenue streams within the scope of ASU 2014-09, it is assessing the need to present the identified revenue streams on a gross or net basis (i.e. principal versus agent) in accordance with ASU 2014-09 and as clarified by ASU No. 2016-08, Principal versus Agent Considerations (Reporting Revenue Gross versus Net).

In January 2016, the FASB issued ASU No. 2016-01, Income Statement - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Liabilities ("ASU 2016-01"). ASU 2016-01 was issued to enhance the reporting model for financial instruments to provide the users of financial statements with more useful information for decisions. ASU 2016-01 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company will adopt ASU 2016-01 through a cumulative-effect adjustment to the balance sheet upon adoption.

The Company will adopt ASU 2016-01 effective January 1, 2018. Upon adoption, the Company will be required to recognize unrealized gains and losses on its equity securities directly through the Company's consolidated statements of income, whereas these equity securities currently are designated as AFS and unrealized gains and losses are recognized within AOCI. The Company does not anticipate this portion of ASU 2016-01 will materially impact the Company's financial position upon adoption.

ASU 2016-01 also requires Companies to utilize an "exit price" fair value methodology for purposes of disclosing the fair value of financial assets and liabilities not measured and reported at fair value on a recurring or non-recurring basis. The Company currently discloses the fair value of its loan portfolio segments using an "entry price" fair value methodology (as disclosed within Note 11).

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

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

During the three months ended June 30, 2017, the Company elected to early adopt ASU 2017-09, effective as of January 1, 2017. The Company has not had any modifications to its share-based awards for the nine months ended September 30, 2017.

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

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

In March 2017, the FASB issued ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities ("ASU 2017-08"). ASU 2017-08 was issued to shorten the amortization period for certain callable debt securities purchased and carried at a premium, by requiring the premium to be amortized to the earliest call date of the debt security. ASU 2017-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The Company will adopt on a modified retrospective basis with any necessary adjustments to retained earnings as a cumulative-effect adjustment. While the Company continues to assess the impact of ASU 2017-08, it does not expect the ASU will have a material impact to its financial statements upon adoption.

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

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

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

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

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

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

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

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

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

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EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2017

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   September 30,						Nine Months Ended   September 30,
	2017			2016			2017			2016
Net income	$	11,339		$	10,903		$	31,649		$	29,165
Dividends and undistributed earnings allocated to participating securities(1)	(46		)	(54		)	(134		)	(134		)
Net income available to common shareholders	$	11,293		$	10,849		$	31,515		$	29,031
Weighted-average common shares outstanding for basic EPS	15,515,189			15,425,452			15,505,698			15,410,310
Dilutive effect of stock-based awards(2)	73,819			82,109			74,374			73,010
Weighted-average common and potential common shares for diluted EPS	15,589,008			15,507,561			15,580,072			15,483,320
Earnings per common share(1):
Basic EPS	$	0.72		$	0.70		$	2.03		$	1.88
Diluted EPS	$	0.72		$	0.70		$	2.02		$	1.88
Awards excluded from the calculation of diluted EPS(3):
Stock options	—			—			—			18,375

(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.

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

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SECURITIES (Tables)

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

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

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

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
September 30, 2017
AFS Securities:
Obligations of states and political subdivisions	$	7,233	$	132	$	—		$	7,365
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	524,763		961		(4,620		)	521,104
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	267,096		131		(4,837		)	262,390
Subordinated corporate bonds	5,483		168		—			5,651
Total AFS debt securities	804,575		1,392		(9,457		)	796,510
Equity securities	623		118		—			741
Total AFS securities	$	805,198	$	1,510	$	(9,457	)	$	797,251
HTM Securities:
Obligations of states and political subdivisions	$	94,207	$	1,169	$	(282	)	$	95,094
Total HTM securities	$	94,207	$	1,169	$	(282	)	$	95,094
December 31, 2016
AFS Securities:
Obligations of states and political subdivisions	$	8,848	$	153	$	—		$	9,001
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	485,222		2,515		(7,115		)	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	289,046		265		(5,421		)	283,890
Subordinated corporate bonds	5,481		132		—			5,613
Total AFS debt securities	788,597		3,065		(12,536		)	779,126
Equity securities	632		109		—			741
Total AFS securities	$	789,229	$	3,174	$	(12,536	)	$	779,867
HTM Securities:
Obligations of states and political subdivisions	$	94,609	$	618	$	(631	)	$	94,596
Total HTM securities	$	94,609	$	618	$	(631	)	$	94,596

Unrealized Gross Losses and Estimated Fair Values of Investment Securities by Length of Time that Individual Securities in Each Category in Continuous Loss Position

The following table presents the estimated fair values and gross unrealized losses of investment securities that were in a continuous loss position at September 30, 2017 and December 31, 2016, by length of time that individual securities in each category have been in a continuous loss position:  

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
September 30, 2017
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	345,629	$	(3,127	)	$	47,553	$	(1,493	)	$	393,182	$	(4,620	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	134,761		(1,579		)	88,177		(3,258		)	222,938		(4,837		)
Total AFS securities	$	480,390	$	(4,706	)	$	135,730	$	(4,751	)	$	616,120	$	(9,457	)
HTM Securities:
Obligations of states and political subdivisions	$	15,234	$	(193	)	$	2,361	$	(89	)	$	17,595	$	(282	)
Total HTM securities	$	15,234	$	(193	)	$	2,361	$	(89	)	$	17,595	$	(282	)
December 31, 2016
AFS Securities:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	348,579	$	(5,780	)	$	29,496	$	(1,335	)	$	378,075	$	(7,115	)
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	163,412		(2,906		)	74,212		(2,515		)	237,624		(5,421		)
Total AFS securities	$	511,991	$	(8,686	)	$	103,708	$	(3,850	)	$	615,699	$	(12,536	)
HTM Securities:
Obligations of states and political subdivisions	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)
Total HTM securities	$	42,805	$	(631	)	$	—	$	—		$	42,805	$	(631	)

Gain (Loss) on Investments

Sale of Securities

The following table details the Company's sales of AFS securities for the period indicated below:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
Proceeds from sales of securities	$	20,269		$	—	$	20,269		$	84
Gross realized gains	841			—		841			4
Gross realized losses	(14		)	—		(14		)	—

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

The amortized cost and estimated fair values of debt securities by contractual maturity at September 30, 2017, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. 

	Amortized Cost		Fair Value
AFS Securities
Due in one year or less	$	1,581	$	1,585
Due after one year through five years	100,951		100,901
Due after five years through ten years	176,090		175,368
Due after ten years	525,953		518,656
	$	804,575	$	796,510
HTM Securities
Due in one year or less	$	754	$	757
Due after one year through five years	4,737		4,798
Due after five years through ten years	7,011		7,121
Due after ten years	81,705		82,418
	$	94,207	$	95,094

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)

9 Months Ended

Sep. 30, 2017

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 September 30, 2017 and December 31, 2016 was as follows:   

	September 30, 2017		December 31, 2016
Residential real estate	$	852,851	$	802,494
Commercial real estate	1,131,883		1,050,780
Commercial	369,155		333,639
Home equity	328,328		329,907
Consumer	18,123		17,332
HPFC	47,950		60,412
Total loans	$	2,748,290	$	2,594,564

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:

	September 30, 2017			December 31, 2016
Net unamortized fair value mark discount on acquired loans	$	6,782		$	8,810
Net unamortized loan origination costs	(612		)	(66		)
Total	$	6,170		$	8,744

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 and nine months ended September 30, 2017 and 2016, and for the year ended December 31, 2016: 

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Three and Nine Months Ended September 30, 2017
ALL for the three months ended:
Beginning balance	$	4,481		$	12,848		$	4,275		$	2,094		$	182		$	514		$	24,394
Loans charged off	(238		)	(69		)	(369		)	(11		)	(28		)	(193		)	(908		)
Recoveries	26			25			59			1			9			5			125
Provision (credit)(1)	273			(8		)	256			93			32			156			802
Ending balance	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
ALL for the nine months ended:
Beginning balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans charged off	(433		)	(81		)	(650		)	(403		)	(90		)	(274		)	(1,931		)
Recoveries	30			138			254			2			13			5			442
Provision(1)	785			585			862			384			91			79			2,786
Ending balance	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
ALL balance attributable to loans:
Individually evaluated for impairment	$	464		$	1,470		$	—		$	—		$	—		$	—		$	1,934
Collectively evaluated for impairment	4,078			11,326			4,221			2,177			195			482			22,479
Total ending ALL	$	4,542		$	12,796		$	4,221		$	2,177		$	195		$	482		$	24,413
Loans:
Individually evaluated for impairment	$	4,792		$	6,373		$	1,842		$	423		$	—		$	—		$	13,430
Collectively evaluated for impairment	848,059			1,125,510			367,313			327,905			18,123			47,950			2,734,860
Total ending loans balance	$	852,851		$	1,131,883		$	369,155		$	328,328		$	18,123		$	47,950		$	2,748,290
For The Three and Nine Months Ended September 30, 2016
ALL for the three months ended:
Beginning balance	$	4,431		$	11,559		$	4,558		$	2,946		$	193		$	30		$	23,717
Loans charged off	—			(32		)	(1,541		)	(44		)	(19		)	(205		)	(1,841		)
Recoveries	1			7			118			—			1			—			127
Provision (credit)(1)	163			1,046			148			(335		)	(13		)	278			1,287
Ending balance	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
ALL for the nine months ended:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	21,166
Loans charged off	(229		)	(273		)	(1,970		)	(229		)	(60		)	(507		)	(3,268		)
Recoveries	72			50			252			2			5			—			381
Provision(1)	207			2,371			1,760			63			24			586			5,011
Ending balance	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
ALL balance attributable to loans:
Individually evaluated for impairment	$	511		$	1,284		$	—		$	88		$	—		$	74		$	1,957
Collectively evaluated for impairment	4,084			11,296			3,283			2,479			162			29			21,333
Total ending ALL	$	4,595		$	12,580		$	3,283		$	2,567		$	162		$	103		$	23,290
Loans:
Individually evaluated for impairment	$	4,551		$	13,286		$	2,243		$	489		$	7		$	106		$	20,682
Collectively evaluated for impairment	792,485			1,041,021			322,179			332,606			17,409			65,627			$	2,571,327
Total ending loans balance	$	797,036		$	1,054,307		$	324,422		$	333,095		$	17,416		$	65,733		$	2,592,009

	Residential Real Estate			Commercial Real Estate			Commercial			Home Equity			Consumer			HPFC			Total
For The Year Ended December 31, 2016
ALL:
Beginning balance	$	4,545		$	10,432		$	3,241		$	2,731		$	193		$	24		$	21,166
Loans charged off	(356		)	(315		)	(2,218		)	(308		)	(101		)	(507		)	(3,805		)
Recoveries	95			50			332			2			7			—			486
Provision (credit)(1)	(124		)	1,987			2,400			(231		)	82			1,155			5,269
Ending balance	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
ALL balance attributable to loans:
Individually evaluated for impairment	$	483		$	1,373		$	—		$	86		$	—		$	65		$	2,007
Collectively evaluated for impairment	3,677			10,781			3,755			2,108			181			607			21,109
Total ending ALL	$	4,160		$	12,154		$	3,755		$	2,194		$	181		$	672		$	23,116
Loans:
Individually evaluated for impairment	$	4,348		$	13,317		$	2,028		$	457		$	7		$	97		$	20,254
Collectively evaluated for impairment	798,146			1,037,463			331,611			329,450			17,325			60,315			2,574,310
Total ending loans balance	$	802,494		$	1,050,780		$	333,639		$	329,907		$	17,332		$	60,412		$	2,594,564

(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 September 30, 2017 and 2016, and December 31, 2016, the reserve for unfunded commitments was $22,000, $14,000 and $11,000, respectively.

Schedule of Provision for Credit Losses

The following reconciles the three and nine months ended September 30, 2017 and 2016, and year ended December 31, 2016 provision for loan losses to the provision for credit losses as presented on the consolidated statement of income:

	Three Months Ended   September 30,					Nine Months Ended   September 30,					Year Ended December 31, 2016
	2017		2016			2017		2016
Provision for loan losses	$	802	$	1,287		$	2,786	$	5,011		$	5,269
Change in reserve for unfunded commitments	15		(8		)	11		(8		)	(11		)
Provision for credit losses	$	817	$	1,279		$	2,797	$	5,003		$	5,258

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
September 30, 2017
Pass (Grades 1-6)	$	841,539	$	1,086,856	$	361,343	$	—	$	—	$	45,920	$	2,335,658
Performing	—		—		—		326,702		18,123		—		344,825
Special Mention (Grade 7)	933		16,663		1,770		—		—		209		19,575
Substandard (Grade 8)	10,379		28,364		4,645		—		—		1,821		45,209
Doubtful (Grade 9)	—		—		1,397		—		—		—		1,397
Non-performing	—		—		—		1,626		—		—		1,626
Total	$	852,851	$	1,131,883	$	369,155	$	328,328	$	18,123	$	47,950	$	2,748,290
December 31, 2016
Pass (Grades 1-6)	$	789,554	$	1,003,386	$	321,148	$	—	$	—	$	58,943	$	2,173,031
Performing	—		—		—		328,287		17,328		—		345,615
Special Mention (Grade 7)	2,387		5,724		5,598		—		—		257		13,966
Substandard (Grade 8)	10,553		41,670		5,437		—		—		1,212		58,872
Doubtful (Grade 9)	—		—		1,456		—		—		—		1,456
Non-performing	—		—		—		1,620		4		—		1,624
Total	$	802,494	$	1,050,780	$	333,639	$	329,907	$	17,332	$	60,412	$	2,594,564

Loan Aging Analysis by Portfolio Segment

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
September 30, 2017
Residential real estate	$	3,308	$	157	$	3,393	$	6,858	$	845,993	$	852,851	$	—	$	4,465
Commercial real estate	1,036		1,260		5,761		8,057		1,123,826		1,131,883		—		5,887
Commercial	721		—		1,484		2,205		366,950		369,155		—		1,830
Home equity	1,022		284		1,375		2,681		325,647		328,328		—		1,626
Consumer	29		15		—		44		18,079		18,123		—		—
HPFC	646		834		297		1,777		46,173		47,950		—		838
Total	$	6,762	$	2,550	$	12,310	$	21,622	$	2,726,668	$	2,748,290	$	—	$	14,646
December 31, 2016
Residential real estate	$	1,783	$	924	$	2,904	$	5,611	$	796,883	$	802,494	$	—	$	3,945
Commercial real estate	855		223		12,625		13,703		1,037,077		1,050,780		—		12,849
Commercial	633		218		1,675		2,526		331,113		333,639		—		2,088
Home equity	892		134		1,321		2,347		327,560		329,907		—		1,620
Consumer	38		—		4		42		17,290		17,332		—		4
HPFC	438		688		110		1,236		59,176		60,412		—		207
Total	$	4,639	$	2,187	$	18,639	$	25,465	$	2,569,099	$	2,594,564	$	—	$	20,713

Troubled Debt Restructuring and Specific Reserve Related to TDRs

The following is a summary of TDRs, by portfolio segment, and the associated specific reserve included within the ALL as of the periods indicated:

	Number of Contracts		Recorded Investment				Specific Reserve
	September 30, 2017	December 31, 2016	September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016
Residential real estate	25	21	$	3,728	$	3,221	$	464	$	483
Commercial real estate	3	3	987		1,008		19		—
Commercial	8	10	1,393		1,502		—		—
Home equity	2	1	308		16		—		—
Total	38	35	$	6,416	$	5,747	$	483	$	483

Schedule of Loan Modifications

The following represents loan modifications that qualify as TDRs that occurred for the three and nine months ended September 30, 2017 and 2016:

	Number of Contracts		Pre-Modification Outstanding Recorded Investment				Post-Modification Outstanding Recorded Investment				Specific Reserve
	2017	2016	2017		2016		2017		2016		2017		2016
For the three months ended
Commercial:
Maturity concession	—	6	$	—	$	1,344	$	—	$	1,652	$	—	$	—
Residential real estate:
Interest rate concession	1	—	134		—		145		—		—		—
Maturity concession	1	—	147		—		147		—		—		—
Interest rate and maturity concession	1	—	148		—		156		—		29		—
Total	3	6	$	429	$	1,344	$	448	$	1,652	$	29	$	—
For the nine months ended
Commercial:
Maturity concession	—	6	$	—	$	1,344	$	—	$	1,652	$	—	$	—
Residential real estate:
Interest rate concession	1	—	134		—		145		—		—		—
Maturity concession	2	—	298		—		298		—		15		—
Interest rate and maturity concession	1	—	148		—		156		—		29		—
Home equity:
Interest rate and maturity concession	1	—	315		—		315		—		—		—
Total	5	6	$	895	$	1,344	$	914	$	1,652	$	44	$	—

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 and nine months ended September 30, 2017 and 2016, and as of and for the year-ended December 31, 2016:

							Three Months Ended					Nine Months Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized(1)			Average Recorded Investment		Interest Income Recognized
September 30, 2017:
With an allowance recorded:
Residential real estate	$	3,262	$	3,262	$	464	$	3,194	$	48		$	3,084	$	103
Commercial real estate	5,589		5,589		1,470		6,590		4			10,048		15
Commercial	—		—		—		82		—			41		—
Home equity	—		—		—		—		—			167		—
Consumer	—		—		—		—		—			—		—
HPFC	—		—		—		—		—			33		—
Ending balance	8,851		8,851		1,934		9,866		52			13,373		118
Without an allowance recorded:
Residential real estate	1,530		1,949		—		1,427		15			1,349		15
Commercial real estate	784		1,032		—		794		15			1,250		22
Commercial	1,842		3,015		—		1,891		(6		)	1,959		8
Home equity	423		482		—		440		1			271		6
Consumer	—		—		—		—		(4		)	3		—
HPFC	—		—		—		—		—			—		—
Ending balance	4,579		6,478		—		4,552		21			4,832		51
Total impaired loans	$	13,430	$	15,329	$	1,934	$	14,418	$	73		$	18,205	$	169
September 30, 2016:
With an allowance recorded:
Residential real estate	$	3,041	$	3,041	$	511	$	3,050	$	56		$	3,108	$	81
Commercial real estate	11,354		11,354		1,284		7,582		—			3,092		—
Commercial	—		—		—		1,782		—			1,016		—
Home equity	302		302		88		303		—			307		—
Consumer	—		—		—		—		—			—		—
HPFC	106		106		74		35		—			97		—
Ending Balance	14,803		14,803		1,957		12,752		56			7,620		81
Without an allowance recorded:
Residential real estate	1,510		1,996		—		1,731		7			2,275		7
Commercial real estate	1,932		2,427		—		2,015		33			2,322		37
Commercial	2,243		4,667		—		1,354		(11		)	2,639		12
Home equity	187		374		—		188		3			181		—
Consumer	7		10		—		7		4			7		—
HPFC	—		—		—		—		—			—		—
Ending Balance	5,879		9,474		—		5,295		36			7,424		56
Total impaired loans	$	20,682	$	24,277	$	1,957	$	18,047	$	92		$	15,044	$	137

(1) Negative interest income represents the re-allocation of income between "with an allowance recorded" and "without an allowance recorded" (or vice versa) during the period.

							Year Ended
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
December 31, 2016:
With an allowance recorded:
Residential real estate	$	3,019	$	3,019	$	483	$	3,088	$	106
Commercial real estate	11,443		11,443		1,373		5,165		—
Commercial	—		—		—		762		—
Home equity	299		299		86		305		—
Consumer	—		—		—		—		—
HPFC	97		97		65		98		—
Ending Balance	14,858		14,858		2,007		9,418		106
Without an allowance recorded:
Residential real estate	1,329		1,800		—		2,057		9
Commercial real estate	1,874		2,369		—		2,214		51
Commercial	2,028		3,209		—		2,507		16
Home equity	158		368		—		180		—
Consumer	7		10		—		12		—
HPFC	—		—		—		—		—
Ending Balance	5,396		7,756		—		6,970		76
Total impaired loans	$	20,254	$	22,614	$	2,007	$	16,388	$	182

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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Goodwill

Goodwill as of September 30, 2017 and December 31, 2016 for each reporting unit is shown in the table below:

	Goodwill
	Banking		Financial Services			Total
September 30, 2017 and December 31, 2016:
Goodwill, gross	$	90,793	$	7,474		$	98,267
Accumulated impairment losses	—		(3,570		)	(3,570		)
Reported goodwill at September 30, 2017 and December 31, 2016	$	90,793	$	3,904		$	94,697

Changes in Core Deposit Intangible and Trust Relationship Intangible

The changes in core deposit and trust relationship intangible assets for the nine months ended September 30, 2017 are shown in the table below:

	Core Deposit Intangible								Trust Relationship Intangible
	Gross		Accumulated Amortization			Net			Gross		Accumulated Amortization			Net			Total
Balance at December 31, 2016	$	23,908	$	(17,220	)	$	6,688		$	753	$	(677	)	$	76		$	6,764
2017 amortization	—		(1,360		)	(1,360		)	—		(57		)	(57		)	(1,417		)
Balance at September 30, 2017	$	23,908	$	(18,580	)	$	5,328		$	753	$	(734	)	$	19		$	5,347

Expected Amortization Schedule for Intangible Assets

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

	Core Deposit Intangible		Trust Relationship Intangible		Total
2017	$	375	$	19	$	394
2018	725		—		725
2019	705		—		705
2020	682		—		682
2021	655		—		655
Thereafter	2,186		—		2,186
Total	$	5,328	$	19	$	5,347

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REGULATORY CAPITAL REQUIREMENTS (Tables)

9 Months Ended

Sep. 30, 2017

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:

	September 30, 2017				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions		December 31, 2016				Minimum Regulatory Capital Required for Capital Adequacy plus Capital Conservation Buffer		Minimum Regulatory Provision To Be "Well Capitalized" Under Prompt Corrective Action Provisions
	Amount		Ratio						Amount		Ratio
Camden National Corporation:
Total risk-based capital ratio	$	392,660	14.09	%	9.25	%	N/A		$	368,856	14.04	%	8.63	%	N/A
Tier I risk-based capital ratio	353,225		12.67	%	7.25	%	N/A		330,729		12.59	%	6.63	%	N/A
Common equity Tier I risk-based capital ratio	314,218		11.28	%	5.75	%	N/A		296,120		11.27	%	5.13	%	N/A
Tier I leverage capital ratio	353,225		9.01	%	4.00	%	N/A		330,729		8.83	%	4.00	%	N/A
Camden National Bank:
Total risk-based capital ratio	$	360,174	12.88	%	9.25	%	10.00	%	$	340,908	12.92	%	8.63	%	10.00	%
Tier I risk-based capital ratio	335,739		12.01	%	7.25	%	8.00	%	317,782		12.05	%	6.63	%	8.00	%
Common equity Tier I risk-based capital ratio	335,739		12.01	%	5.75	%	6.50	%	317,782		12.05	%	5.13	%	6.50	%
Tier I leverage capital ratio	335,739		8.60	%	4.00	%	5.00	%	317,782		8.54	%	4.00	%	5.00	%

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INCOME TAXES (Tables)

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The Company's effective income tax rate for the three and nine months ended September 30, 2017 and 2016 was as follows:

	Three Months Ended   September 30,						Nine Months Ended   September 30,
	2017			2016			2017			2016
Income tax expense	$	5,478		$	5,042		$	14,543		$	12,742
Income before income tax expense	$	16,817		$	15,945		$	46,192		$	41,907
Effective tax rate	32.6		%	31.6		%	31.5		%	30.4		%
Discrete period item(s) — impact on effective tax rate:
Windfall tax benefits, net(1)	(0.2		)%	(0.4		)%	(0.4		)%	(1.0		)%
BOLI death benefit income (non-taxable)	—		%	—		%	—		%	(0.3		)%

(1) Represents the net windfall tax benefits generated upon vesting of share-based awards issued and exercise of stock options that were accounted for within income tax expense on the consolidated statements of income as a discrete period item.

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EMPLOYEE BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2017

Compensation and Retirement Disclosure [Abstract]

Components of Net Period Benefit Cost

The components of net period benefit cost for the periods ended September 30, 2017 and 2016 were as follows:

Supplemental Executive Retirement Plan:

	Three Months Ended   September 30,				Nine Months Ended   September 30,
Net periodic benefit cost	2017		2016		2017		2016
Service cost	$	84	$	77	$	252	$	231
Interest cost	113		108		339		324
Recognized net actuarial loss	61		55		185		165
Recognized prior service cost	—		2		—		6
Net period benefit cost(1)	$	258	$	242	$	776	$	726

(1) Presented within the consolidated statements of income within salaries and employee benefits.

Other Postretirement Benefit Plan:

	Three Months Ended   September 30,						Nine Months Ended   September 30,
Net periodic benefit cost	2017			2016			2017			2016
Service cost	$	13		$	15		$	39		$	45
Interest cost	36			38			108			114
Recognized net actuarial loss	10			8			30			24
Amortization of prior service credit	(6		)	(6		)	(18		)	(18		)
Net period benefit cost(1)	$	53		$	55		$	159		$	165

(1) Presented within the consolidated statements of income within salaries and employee benefits.

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BORROWINGS (Tables)

9 Months Ended

Sep. 30, 2017

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:

	September 30, 2017		December 31, 2016
Short-Term Borrowings (mature within one year):
Customer repurchase agreements	$	265,627	$	225,605
FHLBB borrowings	270,000		210,000
Overnight borrowings	3,300		89,450
Wholesale repurchase agreements	—		5,007
Capital lease obligation	70		67
Total short-term borrowings	$	538,997	$	530,129
Long-Term Borrowings (maturity greater than one year):
FHLBB borrowings	$	10,000	$	10,000
Capital lease obligation	738		791
Total long-term borrowings	$	10,738	$	10,791

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REPURCHASE AGREEMENTS (Tables)

9 Months Ended

Sep. 30, 2017

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 September 30, 2017 and December 31, 2016:

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
September 30, 2017
Customer Repurchase Agreements:
Obligations of states and political subdivisions	$	451	$	—	$	—	$	—	$	451
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	168,103		—		—		—		168,103
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	97,073		—		—		—		97,073
Total Customer Repurchase Agreements	265,627		—		—		—		265,627
Total Wholesale Repurchase Agreements	—		—		—		—		—
Total Repurchase Agreements	$	265,627	$	—	$	—	$	—	$	265,627
December 31, 2016
Customer Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	$	117,784	$	—	$	—	$	—	$	117,784
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	107,821		—		—		—		107,821
Total Customer Repurchase Agreements	225,605		—		—		—		225,605
Wholesale Repurchase Agreements:
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	—		—		3,715		—		3,715
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	—		—		1,292		—		1,292
Total Wholesale Repurchase Agreements	—		—		5,007		—		5,007
Total Repurchase Agreements	$	225,605	$	—	$	5,007	$	—	$	230,612

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FAIR VALUE MEASUREMENT AND DISCLOSURE (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
September 30, 2017
Financial assets:
Loans held for sale	$	12,997	$	—	$	12,997	$	—
AFS securities:
Obligations of states and political subdivisions	7,365		—		7,365		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	521,104		—		521,104		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	262,390		—		262,390		—
Subordinated corporate bonds	5,651		—		5,651		—
Equity securities	741		—		741		—
Customer loan swaps	3,482		—		3,482		—
Fixed-rate interest rate lock commitments	495		—		495		—
Forward delivery commitments	332		—		332		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123		—		8,123		—
FHLBB advance interest rate swaps	98		—		98		—
Customer loan swaps	3,482		—		3,482		—
Fixed-rate interest rate lock commitments	25		—		25		—
Forward delivery commitments	19		—		19		—
December 31, 2016
Financial assets:
Loans held for sale	$	14,836	$	—	$	14,836	$	—
AFS securities:
Obligations of states and political subdivisions	9,001		—		9,001		—
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises	480,622		—		480,622		—
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises	283,890		—		283,890		—
Subordinated corporate bonds	5,613		—		5,613		—
Equity securities	741		—		741		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate interest rate lock commitments	202		—		202		—
Forward delivery commitments	587		—		587		—
Financial liabilities:
Junior subordinated debt interest rate swaps	8,372		—		8,372		—
FHLBB advance interest rate swaps	389		—		389		—
Customer loan swaps	1,945		—		1,945		—
Fixed-rate interest rate lock commitments	15		—		15		—
Forward delivery commitments	309		—		309		—

Summary of Assets Measured at Fair Value on Non Recurring Basis

The table below highlights financial and non-financial assets measured and recorded at fair value on a non-recurring basis as of September 30, 2017 and December 31, 2016.

	Fair Value		Readily Available Market Prices (Level 1)		Observable Market Data (Level 2)		Company Determined Fair Value (Level 3)
September 30, 2017
Financial assets:
Collateral-dependent impaired loans	$	3,276	$	—	$	—	$	3,276
MSRs(1)	330		—		—		330
Non-financial assets:
OREO	341		—		—		341
December 31, 2016
Financial assets:
Collateral-dependent impaired loans	$	500	$	—	$	—	$	500
MSRs(1)	1,090		—		—		1,090
Non-financial assets:
OREO	922		—		—		922

(1) Represents MSRs deemed to be impaired and a valuation allowance was established to carry at fair value.

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 September 30, 2017 and December 31, 2016:

	Fair Value		Valuation Methodology	Unobservable input	Discount Range (Weighted-Average)
September 30, 2017
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0-50%	(9%)
				Estimated selling costs	0 - 10%	(3%)
Specifically reserved	3,110		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	10%	(10%)
MSR	330		Discounted cash flow	Prepayment rate	14%	(14%)
				Discount rate	7%	(7%)
OREO	341		Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling cost	10%	(10%)
December 31, 2016
Collateral-dependent impaired loans:
Partially charged-off	$	166	Market approach appraisal of collateral	Management adjustment of appraisal	0%	(0%)
				Estimated selling costs	0 - 10%	(5%)
Specifically reserved	344		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 50%	(13%)
				Estimated selling costs	10 - 28%	(12%)
MSR	1,090		Discounted cash flow	Prepayment rate	15%	(15%)
				Discount rate	8%	(8%)
OREO	922		Market approach appraisal of collateral	Management adjustment of appraisal	0 - 73%	(7%)
				Estimated selling costs	10%	(10%)

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

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities measured at September 30, 2017: 

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	89,435	$	89,435	$	89,435	$	—	$	—
AFS securities	797,251		797,251		—		797,251		—
HTM securities	94,207		95,094		—		95,094		—
Loans held for sale	12,997		12,997		—		12,997		—
Residential real estate loans(1)	848,309		854,198		—		—		854,198
Commercial real estate loans(1)	1,119,087		1,082,977		—		—		1,082,977
Commercial loans(1)(2)	412,402		409,833		—		—		409,833
Home equity loans(1)	326,151		323,943		—		—		323,943
Consumer loans(1)	17,928		17,465		—		—		17,465
MSRs(3)	1,109		1,740		—		—		1,740
Interest receivable	9,415		9,415		—		9,415		—
Customer loan swaps	3,482		3,482		—		3,482		—
Fixed-rate interest rate lock commitments	495		495		—		495		—
Forward delivery commitments	332		332		—		332		—
Financial liabilities:
Deposits	$	2,956,413	$	2,953,386	$	—	$	2,953,386	$	—
Short-term borrowings	538,997		538,861		—		538,861		—
Long-term borrowings	10,738		10,816		—		10,816		—
Subordinated debentures	58,872		42,090		—		42,090		—
Interest payable	574		574		—		574		—
Junior subordinated debt interest rate swaps	8,123		8,123		—		8,123		—
FHLBB advance interest rate swaps	98		98		—		98		—
Customer loan swaps	3,482		3,482		—		3,482		—
Fixed-rate interest rate lock commitments	25		25		—		25		—
Forward delivery commitments	19		19		—		19		—

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

(2) Includes the HPFC loan portfolio.

(3) Reported fair value represents all MSRs currently being serviced by the Company.

The following table presents the carrying amounts and estimated fair value for financial instrument assets and liabilities measured at December 31, 2016:

	Carrying Amount		Fair Value		Readily Available Market Prices (Level 1)		Observable Market Prices (Level 2)		Company Determined Market Prices (Level 3)
Financial assets:
Cash and due from banks	$	87,707	$	87,707	$	87,707	$	—	$	—
AFS securities	779,867		779,867		—		779,867		—
HTM securities	94,609		94,596		—		94,596		—
Loans held for sale	14,836		14,836		—		14,836		—
Residential real estate loans(1)	798,334		800,122		—		—		800,122
Commercial real estate loans(1)	1,038,626		1,006,249		—		—		1,006,249
Commercial loans(1)(2)	389,624		391,493		—		—		391,493
Home equity loans(1)	327,713		327,292		—		—		327,292
Consumer loans(1)	17,151		16,845		—		—		16,845
MSRs(3)	1,210		1,701		—		—		1,701
Interest receivable	8,654		8,654		—		8,654		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate interest rate lock commitments	202		202		—		202		—
Forward delivery commitments	587		587		—		587		—
Financial liabilities:
Deposits	$	2,828,529	$	2,826,484	$	—	$	2,826,484	$	—
Short-term borrowings	530,129		530,435		—		530,435		—
Long-term borrowings	10,791		10,836		—		10,836		—
Subordinated debentures	58,755		41,660		—		41,660		—
Interest payable	534		534		—		534		—
Junior subordinated debt interest rate swaps	8,372		8,372		—		8,372		—
FHLBB advance interest rate swaps	389		389		—		389		—
Customer loan swaps	1,945		1,945		—		1,945		—
Fixed-rate interest rate lock commitments	15		15		—		15		—
Forward delivery commitments	309		309		—		309		—

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

(2) Includes the HPFC loan portfolio.

(3) Reported fair value represents all MSRs currently being serviced by the Company.

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COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Tables)

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Summary of Contractual and Notional Amounts of Financial Instruments

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

	September 30, 2017		December 31,   2016
Lending-Related Instruments:
Loan origination commitments and unadvanced lines of credit:
Home equity	$	461,731	$	454,225
Commercial and commercial real estate	75,972		83,103
Residential	39,128		17,795
Letters of credit	3,054		2,580
Other commitments	394		432
Derivative Financial Instruments:
Customer loan swaps	$	592,090	$	532,526
FHLBB advance interest rate swaps	50,000		50,000
Junior subordinated debt interest rate swaps	43,000		43,000
Interest rate lock commitments	26,182		15,249
Forward delivery commitments	13,023		15,125

Summary of Derivative Financial Instruments

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:

		September 30, 2017						December 31, 2016
	Balance Sheet Location	Number of Positions	Notional		Fair Value			Number of Positions	Notional		Fair Value
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	29	$	145,292	$	(3,482	)	50	$	266,263	$	(1,945	)
Receive fixed, pay variable	Other assets / (accrued interest and other liabilities)	30	150,753		2,618			—	—		—
Pay fixed, receive variable	Other assets / (accrued interest and other liabilities)	59	296,045		864			50	266,263		1,945
Total		118	$	592,090	$	—		100	$	532,526	$	—

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

						September 30, 2017			December 31,   2016
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%	$	(24	)	$	(152	)
25,000		2/25/2015	2/25/2019	1-Month USD LIBOR	1.74%	(74		)	(237		)
$	50,000					$	(98	)	$	(389	)

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

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

						September 30, 2017			December 31,   2016
Notional Amount		Trade Date	Maturity Date	Variable Index Received	Fixed Rate Paid	Fair Value(1)			Fair Value(1)
$	10,000	3/18/2009	6/30/2021	3-Month USD LIBOR	5.09%	$	(670	)	$	(806	)
10,000		7/8/2009	6/30/2029	3-Month USD LIBOR	5.84%	(2,268		)	(2,321		)
10,000		5/6/2010	6/30/2030	3-Month USD LIBOR	5.71%	(2,253		)	(2,290		)
5,000		3/14/2011	3/30/2031	3-Month USD LIBOR	5.75%	(1,198		)	(1,211		)
8,000		5/4/2011	7/7/2031	3-Month USD LIBOR	5.56%	(1,734		)	(1,744		)
$	43,000					$	(8,123	)	$	(8,372	)

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

Schedule of Interest Rate Derivatives

Our pipeline of mortgage loans with fixed-rate interest rate lock commitments were as follows for the periods indicated:

		September 30, 2017					December 31, 2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Fixed-rate mortgage interest rate locks	Other Assets	$	23,052	$	495		$	12,310	$	202
Fixed-rate mortgage interest rate locks	Accrued interest and other liabilities	3,130		(25		)	2,939		(15		)
Total		$	26,182	$	470		$	15,249	$	187

Forward Delivery Commitments

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

		September 30, 2017					December 31, 2016
	Balance Sheet Location	Notional		Fair Value			Notional		Fair Value
Forward delivery commitments ("best effort")	Other Assets	$	11,348	$	332		$	14,250	$	587
Forward delivery commitments ("best effort")	Accrued interest and other liabilities	1,675		(19		)	875		(309		)
Total		$	13,023	$	313		$	15,125	$	278

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 September 30,					For The Nine Months Ended September 30,
	2017			2016		2017			2016
Derivatives designated as cash flow hedges:
Effective portion of unrealized gains (losses) recognized within AOCI during the period, net of tax	$	(80	)	$	199	$	(452	)	$	(3,453	)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross(1)	$	366		$	534	$	1,234		$	1,521

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

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EARNINGS PER SHARE (Computation of Basic and Diluted Earnings Per Share) (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) $ / shares shares	Sep. 30, 2016 USD ($) $ / shares shares	Sep. 30, 2017 USD ($) $ / shares shares	Sep. 30, 2016 USD ($) $ / shares shares
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income | $	$ 11,339	$ 10,903	$ 31,649	$ 29,165
Dividends and undistributed earnings allocated to participating securities | $	(46)	(54)	(134)	(134)
Net income available to common shareholders | $	$ 11,293	$ 10,849	$ 31,515	$ 29,031
Weighted-average common shares outstanding for basic EPS	15,515,189	15,425,452	15,505,698	15,410,310
Dilutive effect of stock-based awards (shares)	73,819	82,109	74,374	73,010
Weighted-average common and potential common shares for diluted EPS (shares)	15,589,008	15,507,561	15,580,072	15,483,320
Basic EPS (in dollars per share) | $ / shares	$ 0.72	$ 0.70	$ 2.03	$ 1.88
Diluted EPS (in dollars per share) | $ / shares	$ 0.72	$ 0.70	$ 2.02	$ 1.88
Stock split conversion ratio		1.5	1.5
Employee Stock Option
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Stock options (shares)	0	0	0	18,375

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SECURITIES (Summary of Amortized Costs and Estimated Fair Values of Available-For-Sale Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	$ 805,198	$ 789,229
Available-for-sale, Unrealized Gains	1,510	3,174
Available-for-sale, Unrealized Losses	(9,457)	(12,536)
Available-for-sale securities, at fair value	797,251	779,867
Held-to-maturity securities, at amortized cost	94,207	94,609
Held-to-maturity securities, Unrealized Gains	1,169	618
Held-to-maturity securities, Unrealized Losses	(282)	(631)
Held-to-maturity Securities, Fair Value	95,094	94,596
Obligations of states and political subdivisions
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	7,233	8,848
Available-for-sale, Unrealized Gains	132	153
Available-for-sale, Unrealized Losses	0	0
Available-for-sale securities, at fair value	7,365	9,001
Held-to-maturity securities, at amortized cost	94,207	94,609
Held-to-maturity securities, Unrealized Gains	1,169	618
Held-to-maturity securities, Unrealized Losses	(282)	(631)
Held-to-maturity Securities, Fair Value	95,094	94,596
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	524,763	485,222
Available-for-sale, Unrealized Gains	961	2,515
Available-for-sale, Unrealized Losses	(4,620)	(7,115)
Available-for-sale securities, at fair value	521,104	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	267,096	289,046
Available-for-sale, Unrealized Gains	131	265
Available-for-sale, Unrealized Losses	(4,837)	(5,421)
Available-for-sale securities, at fair value	262,390	283,890
Corporate Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	5,483	5,481
Available-for-sale, Unrealized Gains	168	132
Available-for-sale, Unrealized Losses	0	0
Available-for-sale securities, at fair value	5,651	5,613
Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	804,575	788,597
Available-for-sale, Unrealized Gains	1,392	3,065
Available-for-sale, Unrealized Losses	(9,457)	(12,536)
Available-for-sale securities, at fair value	796,510	779,126
Equity Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Amortized Cost	623	632
Available-for-sale, Unrealized Gains	118	109
Available-for-sale, Unrealized Losses	0	0
Available-for-sale securities, at fair value	$ 741	$ 741

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SECURITIES (Schedule of Unrealized Gross Losses and Estimated Fair values of Investment Securities) (Details) $ in Thousands	Sep. 30, 2017 USD ($) security	Dec. 31, 2016 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security	177	209
Fair Value - Less Than 12 Months	$ 480,390	$ 511,991
Unrealized Losses - Less Than 12 Months	(4,706)	(8,686)
Fair Value - 12 Months of More	135,730	103,708
Unrealized Losses - 12 Months or More	(4,751)	(3,850)
Fair Value	616,120	615,699
Unrealized losses	(9,457)	(12,536)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	15,234	42,805
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(193)	(631)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,361	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(89)	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	17,595	42,805
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(282)	(631)
AFS and HTM securities in Continuous Unrealized Loss Position	$ 633,700	$ 658,500
Unrealized Loss as a Percent of Fair Value	1.50%	2.00%
AFS and HTM Securities Unrealized Loss Accumulated in Investments	$ 9,700	$ 13,200
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	4,800	3,900
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	345,629	348,579
Unrealized Losses - Less Than 12 Months	(3,127)	(5,780)
Fair Value - 12 Months of More	47,553	29,496
Unrealized Losses - 12 Months or More	(1,493)	(1,335)
Fair Value	393,182	378,075
Unrealized losses	(4,620)	(7,115)
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	134,761	163,412
Unrealized Losses - Less Than 12 Months	(1,579)	(2,906)
Fair Value - 12 Months of More	88,177	74,212
Unrealized Losses - 12 Months or More	(3,258)	(2,515)
Fair Value	222,938	237,624
Unrealized losses	(4,837)	(5,421)
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	15,234	42,805
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(193)	(631)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,361	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(89)	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	17,595	42,805
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (282)	$ (631)

XML

SECURITIES (Schedule of Company's Sales of Securities) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Proceeds from Sale of Available-for-sale Securities	$ 20,269,000	$ 0	$ 20,269,000	$ 84,000
Available-for-sale Securities, Gross Realized Gains	841,000	0	841,000	4,000
Gain (Loss) on Investments	(14,000)	0	(14,000)	0
Investment Securities Sold, Carrying Amount	19,400,000		19,400,000	80,000
Net gain on sale of securities	$ 827,000	$ 0	$ 827,000	$ 4,000

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SECURITIES (Schedule of Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Available-for-sale, Amortized Cost
Due in one year or less	$ 1,581
Due after one year through five years	100,951
Due after five years through ten years	176,090
Due after ten years	525,953
Amortized cost, total	804,575
Available-for-sale, Fair Value
Due in one year or less	1,585
Due after one year through five years	100,901
Due after five years through ten years	175,368
Due after ten years	518,656
Fair value, total	796,510
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Due in one year or less	754
Due after one year through five years	4,737
Due after five years through ten years	7,011
Due after ten years	81,705
Held-to-maturity securities, at amortized cost	94,207	$ 94,609
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value [Abstract]
Due in one year or less	757
Due after one year through five years	4,798
Due after five years through ten years	7,121
Due after ten years	82,418
Held-to-maturity Securities, Fair Value	$ 95,094	$ 94,596

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SECURITIES (Narrative) (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) security	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) security	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) security
Schedule of Investments [Line Items]
Net unrealized gains (losses) on available-for-sale securities, net of tax	$ (5,165,000)		$ (5,165,000)		$ (6,085,000)
Deferred tax assets, unrealized losses on available for sale securities	$ 2,700,000		2,700,000		$ 3,300,000
Payments to acquire investments			$ 141,600,000	$ 140,700,000
AFS securities in unrealized loss positions, number of positions | security	177		177		209
AFS and HTM securities in Continuous Unrealized Loss Position	$ 633,700,000		$ 633,700,000		$ 658,500,000
AFS and HTM Securities Unrealized Loss Accumulated in Investments	9,700,000		9,700,000		13,200,000
Fair Value - 12 Months of More	$ 135,730,000		$ 135,730,000		$ 103,708,000
Unrealized Loss as a Percent of Fair Value	1.50%		1.50%		2.00%
Proceeds from Sale of Available-for-sale Securities	$ 20,269,000	$ 0	$ 20,269,000	84,000
Net gain on sale of securities	827,000	$ 0	827,000	4,000
Investment securities sold, carrying amount	19,400,000		19,400,000	80,000
Federal Home Loan Bank Stock	19,200,000		19,200,000		$ 17,800,000
Federal Reserve Bank Stock	5,400,000		5,400,000		5,400,000
Security pledged as collateral, amortized cost	714,000,000		714,000,000		597,300,000
Security pledged as collateral, fair value	707,200,000		707,200,000		589,700,000
Residential Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Fair Value - 12 Months of More	135,700,000		135,700,000
Collateralized Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Fair Value - 12 Months of More	103,700,000		103,700,000
Mortgage Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Investments [Line Items]
AFS and HTM Securities Unrealized Loss Accumulated in Investments	4,800,000		4,800,000		3,900,000
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
Fair Value - 12 Months of More	47,553,000		47,553,000		29,496,000
Collateralized Mortgage Obligations [Member]
Schedule of Investments [Line Items]
Fair Value - 12 Months of More	$ 88,177,000		$ 88,177,000		$ 74,212,000
Available-for-sale Securities
Schedule of Investments [Line Items]
Payments to acquire investments				130,300,000
Held-to-maturity Securities
Schedule of Investments [Line Items]
Payments to acquire investments				$ 10,400,000

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES (Composition of Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net unamortized loan origination costs	$ (612)	$ (66)
Loans	2,748,290	2,594,564	$ 2,592,009
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	852,851	802,494
Loans	852,851	802,494	797,036
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,131,883	1,050,780
Loans	1,131,883	1,050,780	1,054,307
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	369,155	333,639
Loans	369,155	333,639	324,422
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	328,328	329,907
Loans	328,328	329,907	333,095
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,123	17,332
Loans	18,123	17,332	17,416
HPFC Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	47,950	60,412
Loans	$ 47,950	$ 60,412	$ 65,733

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 USD ($) loan	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 USD ($) loan	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	$ 14,646,000		$ 14,646,000			$ 20,713,000
Other industry exposures			0
Interest lost on nonaccrual loans	$ 187,000	$ 251,000	$ 673,000	$ 675,000
Number of TDRs | loan	3	6	5	6
Loans modified | loan	0	0	0	0
Financing Receivable, Individually Evaluated for Impairment	$ 13,430,000	$ 20,682,000	$ 13,430,000	$ 20,682,000		20,254,000
Proceeds from the sale of mortgage loans			155,086,000	170,765,000
Gain on sale of mortgage loans			4,323,000	4,171,000
Loans held for sale, at fair value	12,997,000		12,997,000			14,836,000
Financing Receivable, Allowance for Credit Losses	24,413,000	23,290,000	24,413,000	23,290,000	$ 24,394,000	23,116,000	$ 23,717,000	$ 21,166,000
FHLB advances, general debt obligations, pledged collateral	1,100,000,000		1,100,000,000			1,100,000,000
Derivative, Fair Value, Net	313,000		313,000			278,000
Unrealized Gain (Loss) on Derivatives	60,000	226,000	283,000	610,000
Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans restructured due to credit difficulties that are now performing	5,200,000		5,200,000			4,300,000
Financing receivables impaired TDR non-performing	1,300,000		1,300,000			1,400,000
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	4,465,000		4,465,000			3,945,000
Financing Receivable, Individually Evaluated for Impairment	4,792,000	4,551,000	4,792,000	4,551,000		4,348,000
Mortgage Loans in Process of Foreclosure, Amount	2,200,000		2,200,000			1,400,000
Financing Receivable, Allowance for Credit Losses	4,542,000	4,595,000	4,542,000	4,595,000	4,481,000	4,160,000	4,431,000	4,545,000
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	5,887,000		5,887,000			12,849,000
Financing Receivable, Individually Evaluated for Impairment	6,373,000	13,286,000	6,373,000	13,286,000		13,317,000
Financing Receivable, Allowance for Credit Losses	12,796,000	12,580,000	12,796,000	12,580,000	12,848,000	12,154,000	11,559,000	10,432,000
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	1,830,000		1,830,000			2,088,000
Financing Receivable, Individually Evaluated for Impairment	1,842,000	2,243,000	1,842,000	2,243,000		2,028,000
Financing Receivable, Allowance for Credit Losses	4,221,000	3,283,000	4,221,000	3,283,000	4,275,000	3,755,000	4,558,000	3,241,000
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	1,626,000		1,626,000			1,620,000
Financing Receivable, Individually Evaluated for Impairment	423,000	489,000	423,000	489,000		457,000
Financing Receivable, Allowance for Credit Losses	2,177,000	2,567,000	2,177,000	2,567,000	2,094,000	2,194,000	2,946,000	2,731,000
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	0		0			4,000
Financing Receivable, Individually Evaluated for Impairment	0	7,000	0	7,000		7,000
Financing Receivable, Allowance for Credit Losses	195,000	162,000	195,000	162,000	182,000	181,000	193,000	193,000
HPFC Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accrual Loans	838,000		838,000			207,000
Financing Receivable, Individually Evaluated for Impairment	0	106,000	0	106,000		97,000
Financing Receivable, Allowance for Credit Losses	482,000	103,000	482,000	103,000	$ 514,000	672,000	$ 30,000	$ 24,000
Fixed Rate Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from the sale of mortgage loans	59,900,000	71,400,000	150,800,000	166,600,000
Gain on sale of mortgage loans	1,600,000	2,000,000	4,300,000	4,200,000
Loans held for sale, at fair value	13,000,000		13,000,000			15,100,000
Nonoperating Income (Expense) | Fixed Rate Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gain on sale of mortgage loans	$ 72,000	(55,000)	263,000	99,000
Unrealized gain (loss) on loans held for sale			$ 26,000	289,000
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment						250,000
Number of Months	18		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		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)			27.00%
Substandard (Grade 8) | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 500,000		$ 500,000
Forward Contracts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Derivative, Fair Value, Net	313,000		313,000			$ 278,000
Unrealized Gain (Loss) on Derivatives	$ 16,000	$ 0	$ 35,000	$ 0

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES (Activity in Allowance for Loan Losses by Portfolio Segment) (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Reserve for unfunded commitments	$ 22,000	$ 14,000	$ 22,000	$ 14,000	$ 11,000
Activity in ALL:
Beginning balance	24,394,000	23,717,000	23,116,000	21,166,000	21,166,000
Loans charged off	(908,000)	(1,841,000)	(1,931,000)	(3,268,000)	(3,805,000)
Recoveries	125,000	127,000	442,000	381,000	486,000
Provision (credit)(1)	802,000	1,287,000	2,786,000	5,011,000	5,269,000
Ending balance	24,413,000	23,290,000	24,413,000	23,290,000	23,116,000
Ending Balance: Individually evaluated for impairment	1,934,000	1,957,000	1,934,000	1,957,000	2,007,000
Ending Balance: Collectively evaluated for impairment	22,479,000	21,333,000	22,479,000	21,333,000	21,109,000
Ending Balance: Individually evaluated for impairment	13,430,000	20,682,000	13,430,000	20,682,000	20,254,000
Ending Balance: Collectively evaluated for impairment	2,734,860,000	2,571,327,000	2,734,860,000	2,571,327,000	2,574,310,000
Total Loans Outstanding	2,748,290,000	2,592,009,000	2,748,290,000	2,592,009,000	2,594,564,000
Residential Real Estate
Activity in ALL:
Beginning balance	4,481,000	4,431,000	4,160,000	4,545,000	4,545,000
Loans charged off	(238,000)	0	(433,000)	(229,000)	(356,000)
Recoveries	26,000	1,000	30,000	72,000	95,000
Provision (credit)(1)	273,000	163,000	785,000	207,000	(124,000)
Ending balance	4,542,000	4,595,000	4,542,000	4,595,000	4,160,000
Ending Balance: Individually evaluated for impairment	464,000	511,000	464,000	511,000	483,000
Ending Balance: Collectively evaluated for impairment	4,078,000	4,084,000	4,078,000	4,084,000	3,677,000
Ending Balance: Individually evaluated for impairment	4,792,000	4,551,000	4,792,000	4,551,000	4,348,000
Ending Balance: Collectively evaluated for impairment	848,059,000	792,485,000	848,059,000	792,485,000	798,146,000
Total Loans Outstanding	852,851,000	797,036,000	852,851,000	797,036,000	802,494,000
Commercial Real Estate
Activity in ALL:
Beginning balance	12,848,000	11,559,000	12,154,000	10,432,000	10,432,000
Loans charged off	(69,000)	(32,000)	(81,000)	(273,000)	(315,000)
Recoveries	25,000	7,000	138,000	50,000	50,000
Provision (credit)(1)	(8,000)	1,046,000	585,000	2,371,000	1,987,000
Ending balance	12,796,000	12,580,000	12,796,000	12,580,000	12,154,000
Ending Balance: Individually evaluated for impairment	1,470,000	1,284,000	1,470,000	1,284,000	1,373,000
Ending Balance: Collectively evaluated for impairment	11,326,000	11,296,000	11,326,000	11,296,000	10,781,000
Ending Balance: Individually evaluated for impairment	6,373,000	13,286,000	6,373,000	13,286,000	13,317,000
Ending Balance: Collectively evaluated for impairment	1,125,510,000	1,041,021,000	1,125,510,000	1,041,021,000	1,037,463,000
Total Loans Outstanding	1,131,883,000	1,054,307,000	1,131,883,000	1,054,307,000	1,050,780,000
Commercial
Activity in ALL:
Beginning balance	4,275,000	4,558,000	3,755,000	3,241,000	3,241,000
Loans charged off	(369,000)	(1,541,000)	(650,000)	(1,970,000)	(2,218,000)
Recoveries	59,000	118,000	254,000	252,000	332,000
Provision (credit)(1)	256,000	148,000	862,000	1,760,000	2,400,000
Ending balance	4,221,000	3,283,000	4,221,000	3,283,000	3,755,000
Ending Balance: Individually evaluated for impairment	0	0	0	0
Ending Balance: Collectively evaluated for impairment	4,221,000	3,283,000	4,221,000	3,283,000	3,755,000
Ending Balance: Individually evaluated for impairment	1,842,000	2,243,000	1,842,000	2,243,000	2,028,000
Ending Balance: Collectively evaluated for impairment	367,313,000	322,179,000	367,313,000	322,179,000	331,611,000
Total Loans Outstanding	369,155,000	324,422,000	369,155,000	324,422,000	333,639,000
Home Equity
Activity in ALL:
Beginning balance	2,094,000	2,946,000	2,194,000	2,731,000	2,731,000
Loans charged off	(11,000)	(44,000)	(403,000)	(229,000)	(308,000)
Recoveries	1,000	0	2,000	2,000	2,000
Provision (credit)(1)	93,000	(335,000)	384,000	63,000	(231,000)
Ending balance	2,177,000	2,567,000	2,177,000	2,567,000	2,194,000
Ending Balance: Individually evaluated for impairment	0	88,000	0	88,000	86,000
Ending Balance: Collectively evaluated for impairment	2,177,000	2,479,000	2,177,000	2,479,000	2,108,000
Ending Balance: Individually evaluated for impairment	423,000	489,000	423,000	489,000	457,000
Ending Balance: Collectively evaluated for impairment	327,905,000	332,606,000	327,905,000	332,606,000	329,450,000
Total Loans Outstanding	328,328,000	333,095,000	328,328,000	333,095,000	329,907,000
Consumer
Activity in ALL:
Beginning balance	182,000	193,000	181,000	193,000	193,000
Loans charged off	(28,000)	(19,000)	(90,000)	(60,000)	(101,000)
Recoveries	9,000	1,000	13,000	5,000	7,000
Provision (credit)(1)	32,000	(13,000)	91,000	24,000	82,000
Ending balance	195,000	162,000	195,000	162,000	181,000
Ending Balance: Individually evaluated for impairment	0	0	0	0
Ending Balance: Collectively evaluated for impairment	195,000	162,000	195,000	162,000	181,000
Ending Balance: Individually evaluated for impairment	0	7,000	0	7,000	7,000
Ending Balance: Collectively evaluated for impairment	18,123,000	17,409,000	18,123,000	17,409,000	17,325,000
Total Loans Outstanding	18,123,000	17,416,000	18,123,000	17,416,000	17,332,000
HPFC Portfolio Segment
Activity in ALL:
Beginning balance	514,000	30,000	672,000	24,000	24,000
Loans charged off	(193,000)	(205,000)	(274,000)	(507,000)	(507,000)
Recoveries	5,000	0	5,000	0
Provision (credit)(1)	156,000	278,000	79,000	586,000	1,155,000
Ending balance	482,000	103,000	482,000	103,000	672,000
Ending Balance: Individually evaluated for impairment	0	74,000	0	74,000	65,000
Ending Balance: Collectively evaluated for impairment	482,000	29,000	482,000	29,000	607,000
Ending Balance: Individually evaluated for impairment	0	106,000	0	106,000	97,000
Ending Balance: Collectively evaluated for impairment	47,950,000	65,627,000	47,950,000	65,627,000	60,315,000
Total Loans Outstanding	$ 47,950,000	$ 65,733,000	$ 47,950,000	$ 65,733,000	$ 60,412,000

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Provision for Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
LOANS AND ALLOWANCE FOR LOAN LOSSES [Abstract]
Provision (credit)(1)	$ 802	$ 1,287	$ 2,786	$ 5,011	$ 5,269
Change in reserve for unfunded commitments	15	(8)	11	(8)	(11)
Provision for credit losses	$ 817	$ 1,279	$ 2,797	$ 5,003	$ 5,258

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES (Credit Risk Exposure Indicators by Portfolio Segment) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 2,748,290	$ 2,594,564	$ 2,592,009
Pass (Grades 1-6)
Financing Receivable, Recorded Investment [Line Items]
Loans	2,335,658	2,173,031
Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	344,825	345,615
Special Mention (Grade 7)
Financing Receivable, Recorded Investment [Line Items]
Loans	19,575	13,966
Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	45,209	58,872
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,397	1,456
Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans	1,626	1,624
Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans	852,851	802,494	797,036
Residential Real Estate | Pass (Grades 1-6)
Financing Receivable, Recorded Investment [Line Items]
Loans	841,539	789,554
Residential Real Estate | Special Mention (Grade 7)
Financing Receivable, Recorded Investment [Line Items]
Loans	933	2,387
Residential Real Estate | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	10,379	10,553
Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans	1,131,883	1,050,780	1,054,307
Commercial Real Estate | Pass (Grades 1-6)
Financing Receivable, Recorded Investment [Line Items]
Loans	1,086,856	1,003,386
Commercial Real Estate | Special Mention (Grade 7)
Financing Receivable, Recorded Investment [Line Items]
Loans	16,663	5,724
Commercial Real Estate | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	28,364	41,670
Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	369,155	333,639	324,422
Commercial | Pass (Grades 1-6)
Financing Receivable, Recorded Investment [Line Items]
Loans	361,343	321,148
Commercial | Special Mention (Grade 7)
Financing Receivable, Recorded Investment [Line Items]
Loans	1,770	5,598
Commercial | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	4,645	5,437
Commercial | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,397	1,456
Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans	328,328	329,907	333,095
Home Equity | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	326,702	328,287
Home Equity | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans	1,626	1,620
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	18,123	17,332	17,416
Consumer | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	18,123	17,328
Consumer | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans		4
HPFC Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Loans	47,950	60,412	$ 65,733
HPFC Portfolio Segment | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	45,920	58,943
HPFC Portfolio Segment | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Loans	209	257
HPFC Portfolio Segment | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 1,821	$ 1,212

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loan Aging Analysis by Portfolio Segment) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 USD ($) loan	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 USD ($) loan	Dec. 31, 2016 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of TDRs | loan	3	6	5	6
Total Past Due	$ 21,622,000		$ 21,622,000		$ 25,465,000
Current	2,726,668,000		2,726,668,000		2,569,099,000
Total Loans Outstanding	2,748,290,000	$ 2,592,009,000	2,748,290,000	$ 2,592,009,000	2,594,564,000
Loans 90 Days Past Due and Accruing	0		0		0
Non-Accrual Loans	14,646,000		14,646,000		20,713,000
Financing Receivable, Modifications, Pre-Modification Recorded Investment	429,000	1,344,000	895,000	1,344,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	448,000	1,652,000	914,000	1,652,000
Allowance Related to Troubled Debt Restructurings assigned during period	29,000	0	44,000	0
Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,858,000		6,858,000		5,611,000
Current	845,993,000		845,993,000		796,883,000
Total Loans Outstanding	852,851,000	797,036,000	852,851,000	797,036,000	802,494,000
Loans 90 Days Past Due and Accruing	0		0		0
Non-Accrual Loans	4,465,000		4,465,000		3,945,000
Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,057,000		8,057,000		13,703,000
Current	1,123,826,000		1,123,826,000		1,037,077,000
Total Loans Outstanding	1,131,883,000	1,054,307,000	1,131,883,000	1,054,307,000	1,050,780,000
Loans 90 Days Past Due and Accruing	0		0		0
Non-Accrual Loans	5,887,000		5,887,000		12,849,000
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,205,000		2,205,000		2,526,000
Current	366,950,000		366,950,000		331,113,000
Total Loans Outstanding	369,155,000	324,422,000	369,155,000	324,422,000	333,639,000
Loans 90 Days Past Due and Accruing	0		0		0
Non-Accrual Loans	1,830,000		1,830,000		2,088,000
Home Equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,681,000		2,681,000		2,347,000
Current	325,647,000		325,647,000		327,560,000
Total Loans Outstanding	328,328,000	333,095,000	328,328,000	333,095,000	329,907,000
Loans 90 Days Past Due and Accruing	0		0		0
Non-Accrual Loans	1,626,000		1,626,000		1,620,000
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	44,000		44,000		42,000
Current	18,079,000		18,079,000		17,290,000
Total Loans Outstanding	18,123,000	17,416,000	18,123,000	17,416,000	17,332,000
Loans 90 Days Past Due and Accruing	0		0		0
Non-Accrual Loans	0		0		4,000
HPFC Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,777,000		1,777,000		1,236,000
Current	46,173,000		46,173,000		59,176,000
Total Loans Outstanding	47,950,000	$ 65,733,000	47,950,000	$ 65,733,000	60,412,000
Loans 90 Days Past Due and Accruing	0		0		0
Non-Accrual Loans	838,000		838,000		207,000
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,762,000		6,762,000		4,639,000
30-59 Days Past Due | Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,308,000		3,308,000		1,783,000
30-59 Days Past Due | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,036,000		1,036,000		855,000
30-59 Days Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	721,000		721,000		633,000
30-59 Days Past Due | Home Equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,022,000		1,022,000		892,000
30-59 Days Past Due | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	29,000		29,000		38,000
30-59 Days Past Due | HPFC Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	646,000		646,000		438,000
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,550,000		2,550,000		2,187,000
60-89 Days Past Due | Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	157,000		157,000		924,000
60-89 Days Past Due | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,260,000		1,260,000		223,000
60-89 Days Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0		0		218,000
60-89 Days Past Due | Home Equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	284,000		284,000		134,000
60-89 Days Past Due | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	15,000		15,000		0
60-89 Days Past Due | HPFC Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	834,000		834,000		688,000
Greater than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,310,000		12,310,000		18,639,000
Greater than 90 Days | Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,393,000		3,393,000		2,904,000
Greater than 90 Days | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,761,000		5,761,000		12,625,000
Greater than 90 Days | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,484,000		1,484,000		1,675,000
Greater than 90 Days | Home Equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,375,000		1,375,000		1,321,000
Greater than 90 Days | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0		0		4,000
Greater than 90 Days | HPFC Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 297,000		$ 297,000		$ 110,000
Commercial | Extended Maturity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of TDRs | loan	0	6	0	6
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 1,344,000	$ 0	$ 1,344,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	1,652,000	0	1,652,000
Allowance Related to Troubled Debt Restructurings assigned during period	$ 0	$ 0	$ 0	$ 0

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring Loans) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 loan	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 loan	Dec. 31, 2016 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	38		38		35
Recorded Investment	$ 6,416		$ 6,416		$ 5,747
Specific Reserve	$ 483		$ 483		$ 483
Number of Contracts | loan	3	6	5	6
Residential Real Estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	25		25		21
Recorded Investment	$ 3,728		$ 3,728		$ 3,221
Specific Reserve	$ 464		$ 464		$ 483
Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	3		3		3
Recorded Investment	$ 987		$ 987		$ 1,008
Specific Reserve	$ 19		$ 19		$ 0
Commercial
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	8		8		10
Recorded Investment	$ 1,393		$ 1,393		$ 1,502
Specific Reserve	$ 0		$ 0		$ 0
Consumer
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	2		2		1
Recorded Investment	$ 308		$ 308		$ 16
Specific Reserve	$ 0		$ 0		$ 0

XML

LOANS AND ALLOWANCE FOR LOAN LOSSES, Troubled Debt Restructuring by Portfolio Segment (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 USD ($) loan	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of TDRs | loan	3	6	5	6
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 429,000	$ 1,344,000	$ 895,000	$ 1,344,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	448,000	1,652,000	914,000	1,652,000
Allowance Related to Troubled Debt Restructurings assigned during period	$ 29,000	$ 0	$ 44,000	$ 0
Home Equity Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of TDRs | loan			1	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 315,000	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment			315,000	0
Allowance Related to Troubled Debt Restructurings assigned during period			$ 0	$ 0
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of TDRs | loan	1	0	1	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 148,000	$ 0	$ 148,000	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	156,000	0	156,000	0
Allowance Related to Troubled Debt Restructurings assigned during period	$ 29,000	$ 0	$ 29,000	$ 0
Residential Real Estate [Member] | Contractual Interest Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Number of TDRs | loan	1	0	1	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 134,000	$ 0	$ 134,000	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	145,000	0	145,000	0
Allowance Related to Troubled Debt Restructurings assigned during period	$ 0	$ 0	$ 0	$ 0
Residential Real Estate [Member] | Extended Maturity [Member]
Financing Receivable, Modifications [Line Items]
Number of TDRs | loan	1	0	2	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 147,000	$ 0	$ 298,000	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	147,000	0	298,000	0
Allowance Related to Troubled Debt Restructurings assigned during period	$ 0	$ 0	$ 15,000	$ 0
Commercial | Extended Maturity [Member]
Financing Receivable, Modifications [Line Items]
Number of TDRs | loan	0	6	0	6
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 1,344,000	$ 0	$ 1,344,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	1,652,000	0	1,652,000
Allowance Related to Troubled Debt Restructurings assigned during period	$ 0	$ 0	$ 0	$ 0

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		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	$ 8,851	$ 14,803	$ 8,851	$ 14,803	$ 14,858
Unpaid Principal Balance - with an allowance recorded	8,851	14,803	8,851	14,803	14,858
Related Allowance	1,934	1,957	1,934	1,957	2,007
Average Recorded Investment - with an allowance recorded	9,866	12,752	13,373	7,620	9,418
Interest Income Recognized - with an allowance recorded	52	56	118	81	106
Recorded Investment - without allowance recorded	4,579	5,879	4,579	5,879	5,396
Unpaid Principal Balance - without allowance recorded	6,478	9,474	6,478	9,474	7,756
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0	0	0
Average Recorded Investment - without allowance recorded	4,552	5,295	4,832	7,424	6,970
Interest Income Recognized - without allowance recorded	21	36	51	56	76
Impaired Financing Receivable, Recorded Investment	13,430	20,682	13,430	20,682	20,254
Impaired financing receivable, unpaid principal balance	15,329	24,277	15,329	24,277	22,614
Impaired Financing Receivable, Average Recorded Investment	14,418	18,047	18,205	15,044	16,388
Impaired Financing Receivable, Interest Income, Accrual Method	73	92	169	137	182
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	3,262	3,041	3,262	3,041	3,019
Unpaid Principal Balance - with an allowance recorded	3,262	3,041	3,262	3,041	3,019
Related Allowance	464	511	464	511	483
Average Recorded Investment - with an allowance recorded	3,194	3,050	3,084	3,108	3,088
Interest Income Recognized - with an allowance recorded	48	56	103	81	106
Recorded Investment - without allowance recorded	1,530	1,510	1,530	1,510	1,329
Unpaid Principal Balance - without allowance recorded	1,949	1,996	1,949	1,996	1,800
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0	0	0
Average Recorded Investment - without allowance recorded	1,427	1,731	1,349	2,275	2,057
Interest Income Recognized - without allowance recorded	15	7	15	7	9
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	5,589	11,354	5,589	11,354	11,443
Unpaid Principal Balance - with an allowance recorded	5,589	11,354	5,589	11,354	11,443
Related Allowance	1,470	1,284	1,470	1,284	1,373
Average Recorded Investment - with an allowance recorded	6,590	7,582	10,048	3,092	5,165
Interest Income Recognized - with an allowance recorded	4		15
Recorded Investment - without allowance recorded	784	1,932	784	1,932	1,874
Unpaid Principal Balance - without allowance recorded	1,032	2,427	1,032	2,427	2,369
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0	0	0
Average Recorded Investment - without allowance recorded	794	2,015	1,250	2,322	2,214
Interest Income Recognized - without allowance recorded	15	33	22	37	51
Commercial
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0	0	0	0	0
Unpaid Principal Balance - with an allowance recorded	0	0	0	0	0
Related Allowance	0	0	0	0	0
Average Recorded Investment - with an allowance recorded	82	1,782	41	1,016	762
Recorded Investment - without allowance recorded	1,842	2,243	1,842	2,243	2,028
Unpaid Principal Balance - without allowance recorded	3,015	4,667	3,015	4,667	3,209
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0	0	0
Average Recorded Investment - without allowance recorded	1,891	1,354	1,959	2,639	2,507
Interest Income Recognized - without allowance recorded	(6)	(11)	8	12	16
Home Equity
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0	302	0	302	299
Unpaid Principal Balance - with an allowance recorded	0	302	0	302	299
Related Allowance	0	88	0	88	86
Average Recorded Investment - with an allowance recorded		303	167	307	305
Recorded Investment - without allowance recorded	423	187	423	187	158
Unpaid Principal Balance - without allowance recorded	482	374	482	374	368
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0	0	0
Average Recorded Investment - without allowance recorded	440	188	271	181	180
Interest Income Recognized - without allowance recorded	1	3	6
Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0	0	0	0	0
Unpaid Principal Balance - with an allowance recorded	0	0	0	0	0
Related Allowance	0	0	0	0	0
Average Recorded Investment - with an allowance recorded					0
Recorded Investment - without allowance recorded	0	7	0	7	7
Unpaid Principal Balance - without allowance recorded	0	10	0	10	10
Impaired Financing Receivable With No Related Allowance Related Allowance	0	0	0	0
Average Recorded Investment - without allowance recorded		7	3	7	12
Interest Income Recognized - without allowance recorded	(4)	4
HPFC Portfolio Segment
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0	106	0	106	97
Unpaid Principal Balance - with an allowance recorded	0	106	0	106	97
Related Allowance	0	74	0	74	65
Average Recorded Investment - with an allowance recorded		35	33	97	98
Recorded Investment - without allowance recorded	0	0	0	0	0
Unpaid Principal Balance - without allowance recorded	0	0	0	0	0
Impaired Financing Receivable With No Related Allowance Related Allowance	$ 0	$ 0	$ 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	Sep. 30, 2017	Dec. 31, 2016
Receivables [Abstract]
Net Unamortized fair Value Mark (Discount) on Loans	$ 6,782	$ 8,810
Loans and Leases Receivable, Deferred Income	(612)	(66)
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	$ 6,170	$ 8,744

XML

GOODWILL AND OTHER INTANGIBLE ASSETS (Schedule of Changes in Goodwill) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill, gross	$ 98,267	$ 98,267
Accumulated impairment losses	(3,570)	(3,570)
Reported goodwill	94,697	94,697
Banking
Goodwill [Line Items]
Goodwill, gross	90,793	90,793
Accumulated impairment losses	0	0
Financial Services
Goodwill [Line Items]
Goodwill, gross	7,474	7,474
Accumulated impairment losses	(3,570)	(3,570)
Banking
Goodwill [Line Items]
Reported goodwill	90,793	90,793
Financial Services
Goodwill [Line Items]
Reported goodwill	$ 3,904	$ 3,904

XML

GOODWILL AND OTHER INTANGIBLE ASSETS (Schedule of Changes in Core Deposit Intangible and Trust Relationship Intangibles) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accumulated Amortization
2017 amortization	$ (473)	$ (475)	$ (1,417)	$ (1,427)
Net
Beginning Balance			6,764
2017 amortization	(473)	$ (475)	(1,417)	$ (1,427)
Ending Balance	5,347		5,347
Core Deposit Intangible
Total
Beginning Balance			23,908
Ending Balance	23,908		23,908
Accumulated Amortization
Beginning Balance			(17,220)
2017 amortization			(1,360)
Ending Balance	(18,580)		(18,580)
Net
Beginning Balance			6,688
2017 amortization			(1,360)
Ending Balance	5,328		5,328
Trust Relationship Intangible
Total
Beginning Balance			753
Ending Balance	753		753
Accumulated Amortization
Beginning Balance			(677)
2017 amortization			(57)
Ending Balance	(734)		(734)
Net
Beginning Balance			76
2017 amortization			(57)
Ending Balance	$ 19		$ 19

XML

GOODWILL AND OTHER INTANGIBLE ASSETS (Schedule of Expected Amortization of Intangible Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 394
2016	725
2017	705
Finite-Lived Intangible Assets, Amortization Expense, Year Four	682
Finite-Lived Intangible Assets, Amortization Expense, Year Five	655
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	2,186
Total	5,347	$ 6,764
Core Deposit Intangible
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	375
2016	725
2017	705
Finite-Lived Intangible Assets, Amortization Expense, Year Four	682
Finite-Lived Intangible Assets, Amortization Expense, Year Five	655
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	2,186
Total	5,328	6,688
Trust Relationship Intangible
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	19
2016	0
2017	0
Finite-Lived Intangible Assets, Amortization Expense, Year Four	0
Finite-Lived Intangible Assets, Amortization Expense, Year Five	0
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	0
Total	$ 19	$ 76

XML

REGULATORY CAPITAL REQUIREMENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Oct. 08, 2015
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Subordinated debentures	$ 58,872	$ 58,755	$ 15,000
Capital	$ 392,660	$ 368,856
Capital to Risk Weighted Assets	14.09%	14.04%
Capital Required for Capital Adequacy to Risk Weighted Assets	9.25%	8.63%
Tier One Risk Based Capital	$ 353,225	$ 330,729
Tier One Risk Based Capital to Risk Weighted Assets	12.67%	12.59%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	7.25%	6.63%
Common equity tier I capital	$ 314,218	$ 296,120
Common Equity Tier I Risk Based Capital Ratio	11.28%	11.27%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	5.75%	5.13%
Tier One Leverage Capital	$ 353,225	$ 330,729
Excess Tier One Leverage Capital to Average Assets	9.01%	8.83%
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	$ 360,174	$ 340,908
Capital to Risk Weighted Assets	12.88%	12.92%
Capital Required for Capital Adequacy to Risk Weighted Assets	9.25%	8.63%
Tier One Risk Based Capital	$ 335,739	$ 317,782
Capital Required to be Well Capitalized to Risk Weighted Assets	10.00%	10.00%
Tier One Risk Based Capital to Risk Weighted Assets	12.01%	12.05%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	7.25%	6.63%
Common equity tier I capital	$ 335,739	$ 317,782
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	12.01%	12.05%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	5.75%	5.13%
Tier One Leverage Capital	$ 335,739	$ 317,782
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	8.60%	8.54%
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	Oct. 08, 2015	Sep. 30, 2017	Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital Required for Capital Adequacy to Risk Weighted Assets		9.25%	8.63%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		7.25%	6.63%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		5.75%	5.13%
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	$ 15,000	$ 58,872	58,755
Debt Instrument, Term	10 years
Debt Instrument, Interest Rate, Stated Percentage	5.50%
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		1.25%
Tier II Capital [Domain]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Subordinated Debt		$ 15,000	$ 15,000

XML

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income tax expense	$ 5,478	$ 5,042	$ 14,543	$ 12,742
Income before income tax expense	$ 16,817	$ 15,945	$ 46,192	$ 41,907
Effective tax rate	32.60%	31.60%	31.50%	30.40%
Windfall tax benefits, net(1)	(0.20%)	(0.40%)	(0.40%)	(1.00%)
BOLI death benefit income (non-taxable)	(0.00%)	(0.00%)	(0.00%)	(0.30%)

XML

EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Supplemental Employee Retirement Plan [Member]
Net periodic benefit cost
Service cost	$ 84	$ 77	$ 252	$ 231
Interest cost	113	108	339	324
Recognized net actuarial loss	61	55	185	165
Recognized prior service cost		2		6
Net period benefit cost	258	242	776	726
Other Postretirement Benefit Plan
Net periodic benefit cost
Service cost	13	15	39	45
Interest cost	36	38	108	114
Recognized net actuarial loss	10	8	30	24
Recognized prior service cost	(6)	(6)	(18)	(18)
Net period benefit cost	$ 53	$ 55	$ 159	$ 165

XML

BORROWINGS (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Repurchase Agreements	$ 265,627	$ 230,612
Total short-term borrowings	538,997	530,129
Long-term Federal Home Loan Bank Advances	10,000	10,000
Total long-term borrowings	10,738	10,791
Short-term Debt [Member]
Debt Instrument [Line Items]
Repurchase Agreements	265,627	225,605
FHLBB advances less than 90 days	270,000	210,000
FHLBB and correspondent bank overnight borrowings	3,300	89,450
Capital lease obligation	70	67
Long-term Debt [Member]
Debt Instrument [Line Items]
Capital lease obligation	738	791
Commercial and Industrial Sector [Member] | Short-term Debt [Member]
Debt Instrument [Line Items]
Repurchase Agreements	$ 0	$ 5,007

XML

REPURCHASE AGREEMENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets Sold under Agreements to Repurchase [Line Items]
Certificates of Deposit, at Carrying Value	$ 919	$ 917
Repurchase Agreements	265,627	230,612
Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	265,627	225,605
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	5,007
Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Wholesale Customer
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	5,007
Wholesale Customer | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Wholesale Customer | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Wholesale Customer | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	5,007
Wholesale Customer | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0	0
Wholesale Customer | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements		3,715
Wholesale Customer | 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		0
Wholesale Customer | 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
Wholesale Customer | 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		3,715
Wholesale Customer | 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
Wholesale Customer | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements		1,292
Wholesale Customer | 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		0
Wholesale Customer | 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
Wholesale Customer | 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		1,292
Wholesale Customer | 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
Retail Customers
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	265,627	225,605
Retail Customers | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	265,627	225,605
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	451
Retail Customers | Obligations of states and political subdivisions | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	451
Retail Customers | Obligations of states and political subdivisions | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0
Retail Customers | Obligations of states and political subdivisions | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	0
Retail Customers | Obligations of states and political subdivisions | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	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	168,103	117,784
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	168,103	117,784
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	97,073	107,821
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	97,073	107,821
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	Sep. 30, 2017	Dec. 31, 2016
Financial assets:
Loans held for sale	$ 12,997	$ 14,836
Available-for-sale Securities	797,251	779,867
Customer loan swaps	3,482	1,945
Financial liabilities:
Customer loan swaps		1,945
Obligations of states and political subdivisions
Financial assets:
Available-for-sale Securities	7,365	9,001
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	521,104	480,622
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	262,390	283,890
Equity Securities [Member]
Financial assets:
Available-for-sale Securities	741	741
Fair Value, Measurements, Recurring
Financial assets:
Loans held for sale	12,997	14,836
Customer loan swaps	3,482
Financial liabilities:
Junior subordinated debt interest rate swaps		8,372
Customer loan swaps	19
Fair Value, Measurements, Recurring | Obligations of states and political subdivisions
Financial assets:
Available-for-sale Securities	7,365	9,001
Fair Value, Measurements, Recurring | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	521,104	480,622
Fair Value, Measurements, Recurring | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial assets:
Available-for-sale Securities	262,390	283,890
Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]
Financial assets:
Available-for-sale Securities	5,651	5,613
Fair Value, Measurements, Recurring | Equity Securities [Member]
Financial assets:
Available-for-sale Securities	741	741
Readily Available Market Prices (Level 1)
Financial assets:
Loans held for sale	0	0
Available-for-sale Securities	0	0
Customer loan swaps	0	0
Financial liabilities:
Customer loan swaps		0
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)
Financial assets:
Loans held for sale	12,997	14,836
Available-for-sale Securities	797,251	779,867
Customer loan swaps	3,482	1,945
Financial liabilities:
Customer loan swaps		1,945
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial assets:
Loans held for sale	12,997	14,836
Customer loan swaps	3,482
Financial liabilities:
Junior subordinated debt interest rate swaps		8,372
Customer loan swaps	19
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Obligations of states and political subdivisions
Financial assets:
Available-for-sale Securities	7,365	9,001
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	521,104	480,622
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	262,390	283,890
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]
Financial assets:
Available-for-sale Securities	5,651	5,613
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Equity Securities [Member]
Financial assets:
Available-for-sale Securities	741	741
Company Determined Fair Value (Level 3)
Financial assets:
Loans held for sale	0	0
Available-for-sale Securities	0	0
Customer loan swaps	0	0
Financial liabilities:
Customer loan swaps		0
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]
Financial assets:
Customer loan swaps		202
Financial liabilities:
Customer loan swaps	25	15
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps	495	202
Financial liabilities:
Customer loan swaps	25	15
Interest Rate Lock Commitments [Member] | Readily Available Market Prices (Level 1)
Financial assets:
Customer loan swaps		0
Financial liabilities:
Customer loan swaps	0	0
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2)
Financial assets:
Customer loan swaps		202
Financial liabilities:
Customer loan swaps	25	15
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps	495	202
Financial liabilities:
Customer loan swaps	25	15
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3)
Financial assets:
Customer loan swaps		0
Financial liabilities:
Customer loan swaps	0	0
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]
Financial assets:
Customer loan swaps	332	587
Financial liabilities:
Customer loan swaps	19	309
Forward Contracts [Member] | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps	332	587
Financial liabilities:
Customer loan swaps		309
Forward Contracts [Member] | Readily Available Market Prices (Level 1)
Financial assets:
Customer loan swaps	0	0
Financial liabilities:
Customer loan swaps	0	0
Forward Contracts [Member] | Observable Market Data (Level 2)
Financial assets:
Customer loan swaps	332	587
Financial liabilities:
Customer loan swaps	19	309
Forward Contracts [Member] | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps	332	587
Financial liabilities:
Customer loan swaps		309
Forward Contracts [Member] | Company Determined Fair Value (Level 3)
Financial assets:
Customer loan swaps	0	0
Financial liabilities:
Customer loan swaps	0	0
Interest rate swaps
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123	8,372
Interest rate swaps | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps		1,945
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123
Customer loan swaps		1,945
Interest rate swaps | Readily Available Market Prices (Level 1)
Financial liabilities:
Junior subordinated debt interest rate swaps	0	0
Interest rate swaps | Observable Market Data (Level 2)
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123	8,372
Interest rate swaps | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial assets:
Customer loan swaps		1,945
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123
Customer loan swaps		1,945
Interest rate swaps | Company Determined Fair Value (Level 3)
Financial liabilities:
Junior subordinated debt interest rate swaps	0	0
Forward-Starting Interest Rate Swap
Financial liabilities:
Junior subordinated debt interest rate swaps	98	389
Forward-Starting Interest Rate Swap | Fair Value, Measurements, Recurring
Financial liabilities:
Junior subordinated debt interest rate swaps	98	389
Forward-Starting Interest Rate Swap | Readily Available Market Prices (Level 1)
Financial liabilities:
Junior subordinated debt interest rate swaps	0	0
Forward-Starting Interest Rate Swap | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring
Financial liabilities:
Junior subordinated debt interest rate swaps	0
Forward-Starting Interest Rate Swap | Observable Market Data (Level 2)
Financial liabilities:
Junior subordinated debt interest rate swaps	98	389
Forward-Starting Interest Rate Swap | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial liabilities:
Junior subordinated debt interest rate swaps	98	389
Forward-Starting Interest Rate Swap | Company Determined Fair Value (Level 3)
Financial liabilities:
Junior subordinated debt interest rate swaps	0	$ 0
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
Financial liabilities:
Customer loan swaps	3,482
Customer Loan Swaps | Fair Value, Measurements, Recurring
Financial liabilities:
Customer loan swaps	3,482
Customer Loan Swaps | Readily Available Market Prices (Level 1)
Financial liabilities:
Customer loan swaps	0
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)
Financial liabilities:
Customer loan swaps	3,482
Customer Loan Swaps | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring
Financial liabilities:
Customer loan swaps	3,482
Customer Loan Swaps | Company Determined Fair Value (Level 3)
Financial liabilities:
Customer loan swaps	0
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	Sep. 30, 2017	Dec. 31, 2016
Collateral-dependent impaired loans | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	$ 3,276	$ 500
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	3,276	500
Servicing Contracts [Member] | Company Determined Fair Value (Level 3)
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	330	1,090
Servicing Contracts [Member] | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	330	1,090
Servicing Contracts [Member] | Fair Value, Measurements, Nonrecurring | Company Determined Fair Value (Level 3)
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	330	1,090
Other real estate owned | Company Determined Fair Value (Level 3)
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	341	922
Other real estate owned | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair Value	341	922
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	$ 341	$ 922

XML

FAIR VALUE MEASUREMENT AND DISCLOSURE (Schedule of Valuation Methodology and Unobservable Inputs) (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Impaired Loans Partially Charged Off
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 166	$ 166
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	0.00%	0.00%
Impaired Loans Partially Charged Off | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	50.00%	0.00%
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	9.00%	0.00%
Estimated selling cost	3.00%	5.00%
Impaired Loans Specifically Reserved
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 3,110	$ 344
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	10.00%	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%	50.00%
Estimated selling cost	10.00%	28.00%
Impaired Loans Specifically Reserved | Market Approach Valuation Technique | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	13.00%
Estimated selling cost	10.00%	12.00%
Servicing Contracts [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 330	$ 1,090
Servicing Contracts [Member] | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	7.00%	8.00%
Fair Value Inputs, Prepayment Rate	14.00%	15.00%
Servicing Contracts [Member] | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	7.00%	8.00%
Fair Value Inputs, Prepayment Rate	14.00%	15.00%
Servicing Contracts [Member] | Market Approach Valuation Technique | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	7.00%	8.00%
Fair Value Inputs, Prepayment Rate	14.00%	15.00%
Other real estate owned
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 341	$ 922
Other real estate owned | 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%	10.00%
Other real estate owned | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	73.00%
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	0.00%	7.00%
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	Sep. 30, 2017	Dec. 31, 2016
Financial assets:
Cash and due from banks	$ 89,435	$ 87,707
Available-for-sale Securities	797,251	779,867
Held-to-maturity securities, at amortized cost	94,207	94,609
Held-to-maturity Securities, Fair Value	95,094	94,596
Loans held for sale	12,997	14,836
Mortgage servicing rights	1,740	1,701
Interest receivable	9,415	8,654
Customer loan swaps	3,482	1,945
Derivative Asset	495
Financial liabilities:
Deposits	2,953,386	2,826,484
Short-term Debt, Fair Value	538,861	530,435
Long-term Debt, Fair Value	10,816	10,836
Subordinated debentures	42,090	41,660
Interest payable	574	534
Customer loan swaps		1,945
Residential Real Estate
Financial assets:
Loans receivable, net of allowance	854,198	800,122
Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,082,977	1,006,249
Commercial
Financial assets:
Loans receivable, net of allowance	409,833	391,493
Home Equity
Financial assets:
Loans receivable, net of allowance	323,943	327,292
Consumer
Financial assets:
Loans receivable, net of allowance	17,465	16,845
Readily Available Market Prices (Level 1)
Financial assets:
Cash and due from banks	89,435	87,707
Available-for-sale Securities	0	0
Held-to-maturity Securities, Fair Value	0	0
Loans held for sale	0	0
Mortgage servicing rights	0	0
Interest receivable	0	0
Customer loan swaps	0	0
Derivative Asset	0
Financial liabilities:
Deposits	0	0
Short-term Debt, Fair Value	0	0
Long-term Debt, Fair Value	0	0
Subordinated debentures	0	0
Interest payable	0	0
Customer loan swaps		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:
Cash and due from banks	0	0
Available-for-sale Securities	797,251	779,867
Held-to-maturity Securities, Fair Value	95,094	94,596
Loans held for sale	12,997	14,836
Mortgage servicing rights	0	0
Interest receivable	9,415	8,654
Customer loan swaps	3,482	1,945
Derivative Asset	495
Financial liabilities:
Deposits	2,953,386	2,826,484
Short-term Debt, Fair Value	538,861	530,435
Long-term Debt, Fair Value	10,816	10,836
Subordinated debentures	42,090	41,660
Interest payable	574	534
Customer loan swaps		1,945
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:
Cash and due from banks	0	0
Available-for-sale Securities	0	0
Held-to-maturity Securities, Fair Value	0	0
Loans held for sale	0	0
Mortgage servicing rights	1,740	1,701
Interest receivable	0	0
Customer loan swaps	0	0
Derivative Asset	0
Financial liabilities:
Deposits	0	0
Short-term Debt, Fair Value	0	0
Long-term Debt, Fair Value	0	0
Subordinated debentures	0	0
Interest payable	0	0
Customer loan swaps		0
Company Determined Fair Value (Level 3) | Residential Real Estate
Financial assets:
Loans receivable, net of allowance	854,198	800,122
Company Determined Fair Value (Level 3) | Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,082,977	1,006,249
Company Determined Fair Value (Level 3) | Commercial
Financial assets:
Loans receivable, net of allowance	409,833	391,493
Company Determined Fair Value (Level 3) | Home Equity
Financial assets:
Loans receivable, net of allowance	323,943	327,292
Company Determined Fair Value (Level 3) | Consumer
Financial assets:
Loans receivable, net of allowance	17,465	16,845
Carrying Amount
Financial assets:
Cash and due from banks	89,435	87,707
Available-for-sale Securities	797,251	779,867
Held-to-maturity securities, at amortized cost	94,207	94,609
Loans held for sale	12,997	14,836
Mortgage servicing rights	1,109	1,210
Interest receivable	9,415	8,654
Customer loan swaps	3,482	1,945
Derivative Asset	495
Financial liabilities:
Deposits	2,956,413	2,828,529
Short-term Debt, Fair Value	538,997	530,129
Long-term Debt, Fair Value	10,738	10,791
Subordinated debentures	58,872	58,755
Interest payable	574	534
Customer loan swaps		1,945
Carrying Amount | Residential Real Estate
Financial assets:
Loans receivable, net of allowance	848,309	798,334
Carrying Amount | Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,119,087	1,038,626
Carrying Amount | Commercial
Financial assets:
Loans receivable, net of allowance	412,402	389,624
Carrying Amount | Home Equity
Financial assets:
Loans receivable, net of allowance	326,151	327,713
Carrying Amount | Consumer
Financial assets:
Loans receivable, net of allowance	17,928	17,151
Interest Rate Lock Commitments [Member]
Financial assets:
Customer loan swaps		202
Financial liabilities:
Customer loan swaps	25	15
Interest Rate Lock Commitments [Member] | Readily Available Market Prices (Level 1)
Financial assets:
Customer loan swaps		0
Financial liabilities:
Customer loan swaps	0	0
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2)
Financial assets:
Customer loan swaps		202
Financial liabilities:
Customer loan swaps	25	15
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3)
Financial assets:
Customer loan swaps		0
Financial liabilities:
Customer loan swaps	0	0
Interest Rate Lock Commitments [Member] | Carrying Amount
Financial assets:
Customer loan swaps		202
Financial liabilities:
Customer loan swaps	25	15
Forward Contracts [Member]
Financial assets:
Customer loan swaps	332	587
Financial liabilities:
Customer loan swaps	19	309
Forward Contracts [Member] | Readily Available Market Prices (Level 1)
Financial assets:
Customer loan swaps	0	0
Financial liabilities:
Customer loan swaps	0	0
Forward Contracts [Member] | Observable Market Data (Level 2)
Financial assets:
Customer loan swaps	332	587
Financial liabilities:
Customer loan swaps	19	309
Forward Contracts [Member] | Company Determined Fair Value (Level 3)
Financial assets:
Customer loan swaps	0	0
Financial liabilities:
Customer loan swaps	0	0
Forward Contracts [Member] | Carrying Amount
Financial assets:
Customer loan swaps	332	587
Financial liabilities:
Customer loan swaps	19	309
Interest rate swaps
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123	8,372
Interest rate swaps | Readily Available Market Prices (Level 1)
Financial liabilities:
Junior subordinated debt interest rate swaps	0	0
Interest rate swaps | Observable Market Data (Level 2)
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123	8,372
Interest rate swaps | Company Determined Fair Value (Level 3)
Financial liabilities:
Junior subordinated debt interest rate swaps	0	0
Interest rate swaps | Carrying Amount
Financial liabilities:
Junior subordinated debt interest rate swaps	8,123	8,372
Forward-Starting Interest Rate Swap
Financial liabilities:
Junior subordinated debt interest rate swaps	98	389
Forward-Starting Interest Rate Swap | Readily Available Market Prices (Level 1)
Financial liabilities:
Junior subordinated debt interest rate swaps	0	0
Forward-Starting Interest Rate Swap | Observable Market Data (Level 2)
Financial liabilities:
Junior subordinated debt interest rate swaps	98	389
Forward-Starting Interest Rate Swap | Company Determined Fair Value (Level 3)
Financial liabilities:
Junior subordinated debt interest rate swaps	0	0
Forward-Starting Interest Rate Swap | Carrying Amount
Financial liabilities:
Junior subordinated debt interest rate swaps	98	$ 389
Customer Loan Swaps
Financial liabilities:
Customer loan swaps	3,482
Customer Loan Swaps | Readily Available Market Prices (Level 1)
Financial liabilities:
Customer loan swaps	0
Customer Loan Swaps | Observable Market Data (Level 2)
Financial liabilities:
Customer loan swaps	3,482
Customer Loan Swaps | Company Determined Fair Value (Level 3)
Financial liabilities:
Customer loan swaps	0
Customer Loan Swaps | Carrying Amount
Financial liabilities:
Customer loan swaps	$ 3,482

XML

FAIR VALUE MEASUREMENT AND DISCLOSURE (Narrative) (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 13,430,000	$ 20,254,000	$ 20,682,000
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		9 Months Ended		12 Months Ended
	Sep. 30, 2017 USD ($) derivative	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) derivative swap	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) derivative
Other Commitments [Line Items]
Loss Contingency Accrual	$ 0		$ 0		$ 0
Loss on Cash Flow Hedge Ineffectiveness	$ 0		$ 0		0
Number of interest rate swap agreements | swap			2
Derivative, Number of Instruments Held | derivative	2		2
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred			$ 1,200,000
Unrealized Gain (Loss) on Derivatives	$ 60,000	$ 226,000	283,000	$ 610,000
Interest rate swaps
Other Commitments [Line Items]
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges			981,000	1,200,000
Notional amount of derivative	43,000,000		43,000,000		43,000,000
Cash held as collateral	9,100,000		9,100,000
Forward-Starting Interest Rate Swap
Other Commitments [Line Items]
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges			241,000	351,000
Notional amount of derivative	50,000,000		50,000,000		50,000,000
Cash held as collateral	1,200,000		1,200,000
Forward Contracts [Member]
Other Commitments [Line Items]
Notional amount of derivative	13,023,000		13,023,000		$ 15,125,000
Unrealized Gain (Loss) on Derivatives	$ 16,000	$ 0	$ 35,000	$ 0
Federal home loan bank 30-day | Interest rate swaps
Other Commitments [Line Items]
Derivative, Number of Instruments Held | derivative	30		30		0
Notional amount of derivative	$ 150,753,000		$ 150,753,000		$ 0
Commercial and Industrial Sector [Member] | Interest rate swaps
Other Commitments [Line Items]
Derivative, Number of Instruments Held | derivative	59		59		50
Notional amount of derivative	$ 296,045,000		$ 296,045,000		$ 266,263,000
Contract One [Member] | Interest rate swaps
Other Commitments [Line Items]
Notional amount of derivative	10,000,000		$ 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		$ 25,000,000

XML

COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Summary of Contractual and Notional Amounts of Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Customer Loan Swaps
Financial Instruments [Line Items]
Notional amount of derivative	$ 592,090	$ 532,526
Forward-Starting Interest Rate Swap
Financial Instruments [Line Items]
Notional amount of derivative	50,000	50,000
Interest rate swaps
Financial Instruments [Line Items]
Notional amount of derivative	43,000	43,000
Interest rate lock commitments
Financial Instruments [Line Items]
Notional amount of derivative	26,182	15,249
Forward Contracts [Member]
Financial Instruments [Line Items]
Notional amount of derivative	13,023	15,125
Other Commitments
Financial Instruments [Line Items]
Notional amount of derivative	394	432
Letters of Credit
Financial Instruments [Line Items]
Notional amount of derivative	3,054	2,580
Home Equity
Financial Instruments [Line Items]
Notional amount of derivative	461,731	454,225
Commercial and commercial real estate
Financial Instruments [Line Items]
Notional amount of derivative	75,972	83,103
Residential
Financial Instruments [Line Items]
Notional amount of derivative	$ 39,128	$ 17,795

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	9 Months Ended	12 Months Ended
		Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016
Derivative [Line Items]
Derivative, fair value		$ 313,000	$ 313,000	$ 278,000
Loss on Cash Flow Hedge Ineffectiveness		0	0	0
Interest rate swaps
Derivative [Line Items]
Notional Amount		43,000,000	43,000,000	43,000,000
Derivative, fair value	[1]	(8,123,000)	(8,123,000)	(8,372,000)
Interest rate swaps | Contract, One
Derivative [Line Items]
Notional Amount		$ 10,000,000	$ 10,000,000
Trade Date			Mar. 18, 2009
Maturity Date			Jun. 30, 2021
Variable Index Received			3 months
Fixed Rate Paid		5.09%	5.09%
Derivative, fair value	[1]	$ (670,000)	$ (670,000)	(806,000)
Interest rate swaps | Contract, Two
Derivative [Line Items]
Notional Amount		$ 10,000,000	$ 10,000,000
Trade Date			Jul. 08, 2009
Maturity Date			Jun. 30, 2029
Variable Index Received			3 months
Fixed Rate Paid		5.84%	5.84%
Derivative, fair value	[1]	$ (2,268,000)	$ (2,268,000)	(2,321,000)
Interest rate swaps | Contract, Three
Derivative [Line Items]
Notional Amount		$ 10,000,000	$ 10,000,000
Trade Date			May 06, 2010
Maturity Date			Jun. 30, 2030
Variable Index Received			3 months
Fixed Rate Paid		5.71%	5.71%
Derivative, fair value	[1]	$ (2,253,000)	$ (2,253,000)	(2,290,000)
Interest rate swaps | Contract, Four
Derivative [Line Items]
Notional Amount		$ 5,000,000	$ 5,000,000
Trade Date			Mar. 14, 2011
Maturity Date			Mar. 30, 2031
Variable Index Received			3 months
Fixed Rate Paid		5.75%	5.75%
Derivative, fair value	[1]	$ (1,198,000)	$ (1,198,000)	(1,211,000)
Interest rate swaps | Contract, Five
Derivative [Line Items]
Notional Amount		$ 8,000,000	$ 8,000,000
Trade Date			May 04, 2011
Maturity Date			Jul. 07, 2031
Variable Index Received			3 months
Fixed Rate Paid		5.56%	5.56%
Derivative, fair value	[1]	$ (1,734,000)	$ (1,734,000)	(1,744,000)
Forward-Starting Interest Rate Swap
Derivative [Line Items]
Notional Amount		50,000,000	50,000,000	50,000,000
Derivative, fair value	[2]	(98,000)	(98,000)	(389,000)
Forward-Starting Interest Rate Swap | Contract, One
Derivative [Line Items]
Notional Amount		$ 25,000,000	$ 25,000,000
Trade Date			Feb. 25, 2015
Maturity Date			Feb. 25, 2018
Variable Index Received			1 month
Fixed Rate Paid		1.54%	1.54%
Derivative, fair value	[2]	$ (24,000)	$ (24,000)	(152,000)
Forward-Starting Interest Rate Swap | Contract, Two
Derivative [Line Items]
Notional Amount		$ 25,000,000	$ 25,000,000
Trade Date			Feb. 25, 2015
Maturity Date			Feb. 25, 2019
Variable Index Received			1 month
Fixed Rate Paid		1.74%	1.74%
Derivative, fair value	[2]	$ (74,000)	$ (74,000)	$ (237,000)

[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 AND CONTINGENCIES Schedule of customer loan swaps (Details)		Sep. 30, 2017 USD ($) derivative	Dec. 31, 2016 USD ($) derivative
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		2
Derivative, fair value		$ 313,000	$ 278,000
Interest rate swaps
Derivative [Line Items]
Notional amount of derivative		43,000,000	43,000,000
Derivative, fair value	[1]	$ (8,123,000)	$ (8,372,000)
Interest rate swaps | Federal home loan bank 30-day
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		30	0
Notional amount of derivative		$ 150,753,000	$ 0
Derivative, fair value		2,618,000	0
Forward-Starting Interest Rate Swap
Derivative [Line Items]
Notional amount of derivative		50,000,000	50,000,000
Derivative, fair value	[2]	$ (98,000)	$ (389,000)
Commercial and Industrial Sector [Member] | Interest rate swaps
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		59	50
Notional amount of derivative		$ 296,045,000	$ 266,263,000
Derivative, fair value		$ 864,000	$ 1,945,000
Loans [Member] | Interest rate swaps
Derivative [Line Items]
Derivative, Number of Instruments Held | derivative		118	100
Notional amount of derivative		$ 592,090,000	$ 532,526,000
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		29	50
Notional amount of derivative		$ 145,292,000	$ 266,263,000
Derivative, fair value		$ (3,482,000)	$ (1,945,000)

[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 AND CONTINGENCIES Schedule of interest rate lock commitments (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Derivative, Fair Value, Net	$ 313,000	$ 278,000
Interest Rate Lock Commitments
Other Commitments [Line Items]
Notional amount of derivative	26,182,000	15,249,000
Derivative Asset, Fair Value, Gross Asset	495,000	202,000
Derivative Liability, Fair Value, Gross Liability	(25,000)	(15,000)
Derivative, Fair Value, Net	470,000	187,000
Other Assets [Member] | Interest Rate Lock Commitments
Other Commitments [Line Items]
Notional amount of derivative	23,052,000	12,310,000
Other Liabilities [Member] | Interest Rate Lock Commitments
Other Commitments [Line Items]
Notional amount of derivative	$ 3,130,000	$ 2,939,000

XML

COMMITMENTS AND CONTINGENCIES Schedule of Derivatives Effects on OCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross	$ 366	$ 534	$ 1,234	$ 1,521

XML

COMMITMENTS, CONTINGENCIES AND DERIVATIVES Schedule of forward loan sale commitments (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Derivative, Fair Value, Net	$ 313,000	$ 278,000
Forward Contracts [Member]
Other Commitments [Line Items]
Notional amount of derivative	13,023,000	15,125,000
Derivative Asset, Fair Value, Gross Asset	332,000	587,000
Derivative Liability, Fair Value, Gross Liability	(19,000)	(309,000)
Derivative, Fair Value, Net	313,000	278,000
Forward Contracts [Member] | Other Assets [Member]
Other Commitments [Line Items]
Notional amount of derivative	11,348,000	14,250,000
Forward Contracts [Member] | Other Liabilities [Member]
Other Commitments [Line Items]
Notional amount of derivative	1,675,000	875,000
Interest Rate Lock Commitments [Member]
Other Commitments [Line Items]
Notional amount of derivative	26,182,000	15,249,000
Derivative Asset, Fair Value, Gross Asset	495,000	202,000
Derivative Liability, Fair Value, Gross Liability	(25,000)	(15,000)
Derivative, Fair Value, Net	470,000	187,000
Interest Rate Lock Commitments [Member] | Other Assets [Member]
Other Commitments [Line Items]
Notional amount of derivative	23,052,000	12,310,000
Interest Rate Lock Commitments [Member] | Other Liabilities [Member]
Other Commitments [Line Items]
Notional amount of derivative	$ 3,130,000	$ 2,939,000

XML

COMMITMENTS, CONTINGENCIES AND DERIVATIVES Schedule of Derivatives Effect on OCI and Current Earnings (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ (80)	$ 199	$ (452)	$ (3,453)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 366	$ 534	$ 1,234	$ 1,521

XML

RECENT ACCOUNTING PRONOUNCEMENTS (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) $ / shares	Sep. 30, 2016 USD ($) $ / shares	Sep. 30, 2017 USD ($) $ / shares	Sep. 30, 2016 USD ($) $ / shares
Accounting Changes and Error Corrections [Abstract]
Net income | $	$ 11,339	$ 10,903	$ 31,649	$ 29,165
Basic earnings per share (in dollars per share)	$ 0.72	$ 0.70	$ 2.03	$ 1.88
Diluted earnings per share (in dollars per share)	$ 0.72	$ 0.70	$ 2.02	$ 1.88
Stock split conversion ratio		1.5	1.5

XML

RECENT ACCOUNTING PRONOUNCEMENTS NEW ACCOUNTING PRONOUNCEMENTS (Narrative) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Available-for-sale Securities	$ 797,251	$ 779,867
Available-for-sale Securities, Amortized Cost Basis	805,198	789,229
Equity Securities [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Available-for-sale Securities	741	741
Available-for-sale Securities, Amortized Cost Basis	$ 623	$ 632