Berkshire Hills Bancorp (BHLB) 10-Q 8 Nov 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2019	Nov. 07, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
Document Transition Report	false
Entity File Number	001-15781
Entity Registrant Name	BERKSHIRE HILLS BANCORP INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	04-3510455
Entity Address, Address Line One	60 State Street
Entity Address, City or Town	Boston
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02109
City Area Code	800
Local Phone Number	773-5601
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	BHLB
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		49,938,176
Entity Central Index Key	0001108134
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 121,629	$ 100,972
Short-term investments	180,466	82,217
Total cash and cash equivalents	302,095	183,189
Trading security, at fair value	11,145	11,212
Marketable equity securities, at fair value	59,596	56,638
Securities available for sale, at fair value	1,369,604	1,399,647
Securities held to maturity (fair values of $381,433 and $371,224)	364,675	373,763
Federal Home Loan Bank stock and other restricted securities	56,049	77,344
Total securities	1,861,069	1,918,604
Loans held for sale	204,900	2,183
Total loans	9,718,641	9,043,253
Less: Allowance for loan losses	(62,230)	(61,469)
Net loans	9,656,411	8,981,784
Premises and equipment, net	123,195	106,500
Goodwill	554,704	518,325
Other intangible assets	47,198	33,418
Cash surrender value of bank-owned life insurance policies	227,085	190,609
Deferred tax assets, net	49,543	42,434
Other assets	263,464	120,926
Assets from discontinued operations	242,279	114,259
Total assets	13,531,943	12,212,231
Liabilities
Demand deposits	1,887,621	1,603,019
NOW and other deposits	1,267,057	1,122,321
Money market deposits	2,478,947	2,245,195
Savings deposits	831,972	724,129
Time deposits	3,957,721	3,287,717
Total deposits	10,423,318	8,982,381
Short-term debt	300,000	1,118,832
Long-term Federal Home Loan Bank advances	604,149	309,466
Subordinated borrowings	96,991	89,518
Total borrowings	1,001,140	1,517,816
Other liabilities	301,647	149,519
Liabilities from discontinued operations	33,614	9,597
Total liabilities	11,759,719	10,659,313
Shareholders’ equity
Preferred Stock (Series B non-voting convertible preferred stock - $0.01 par value; 2,000,000 shares authorized, 521,607 shares issued and outstanding in 2019; 2,000,000 shares authorized, 521,607 shares issued and outstanding in 2018	40,633	40,633
Common stock ($.01 par value; 100,000,000 shares authorized and 51,903,190 shares issued and 50,394,332 shares outstanding in 2019; 100,000,000 shares authorized, 46,211,894 shares issued and 45,416,855 shares outstanding in 2018)	517	460
Additional paid-in capital - common stock	1,422,353	1,245,013
Unearned compensation	(9,469)	(6,594)
Retained earnings	346,971	308,839
Accumulated other comprehensive income (loss)	15,880	(13,470)
Treasury stock, at cost (1,508,858 shares in 2019 and 795,039 shares in 2018)	(44,661)	(21,963)
Total shareholders’ equity	1,772,224	1,552,918
Total liabilities and shareholders’ equity	13,531,943	12,212,231
Commercial real estate
Assets
Total loans	4,028,461	3,400,221
Commercial and industrial loans
Assets
Total loans	1,845,086	1,980,046
Residential mortgages
Assets
Total loans	2,838,657	2,566,424
Consumer loans
Assets
Total loans	$ 1,006,437	$ 1,096,562

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value	$ 381,433	$ 371,224
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	51,903,190	46,211,894
Common stock, shares outstanding (in shares)	50,394,332	45,416,855
Treasury stock (in shares)	1,508,858	795,039
Series B Convertible Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	521,607	521,607
Preferred stock, shares outstanding (in shares)	521,607	521,607

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest and dividend income from continuing operations
Loans	$ 118,371	$ 102,651	$ 338,012	$ 294,646
Securities and other	15,354	14,918	46,060	44,553
Total interest and dividend income	133,725	117,569	384,072	339,199
Interest expense from continuing operations
Deposits	31,501	21,460	86,396	54,553
Borrowings	5,353	7,724	23,751	21,212
Total interest expense	36,854	29,184	110,147	75,765
Net interest income from continuing operations	96,871	88,385	273,925	263,434
Non-interest income from continuing operations
Other, net	609	468	1,363	1,891
Gain/(loss) on securities, net	87	88	2,655	(696)
Gain on sale of business operations and other assets, net	0	0	0	460
Total non-interest income	21,406	20,034	60,640	58,549
Total net revenue from continuing operations	118,277	108,419	334,565	321,983
Provision for loan losses	22,600	6,628	30,068	18,735
Non-interest expense from continuing operations
Compensation and benefits	37,272	31,746	105,551	99,092
Occupancy and equipment	9,893	9,145	28,788	27,561
Technology and communications	6,849	7,507	19,821	21,044
Marketing and promotion	1,006	1,167	3,428	3,473
Professional services	2,282	1,481	8,510	4,041
FDIC premiums and assessments	0	1,640	3,390	4,246
Other real estate owned and foreclosures	150	(1)	150	67
Amortization of intangible assets	1,526	1,218	4,201	3,732
Acquisition, restructuring, and other expenses	4,163	198	22,333	6,138
Other	7,870	5,526	23,398	17,126
Total non-interest expense	71,011	59,627	219,570	186,520
Income from continuing operations before income taxes	24,666	42,164	84,927	116,728
Income tax expense	4,007	9,095	16,042	24,577
Net income from continuing operations	20,659	33,069	68,885	92,151
Income/(loss) from discontinued operations before income taxes	2,747	(1,147)	3,975	(883)
Income tax expense/(benefit)	790	(305)	1,161	(238)
Net income/(loss) from discontinued operations	1,957	(842)	2,814	(645)
Net income	22,616	32,227	71,699	91,506
Preferred stock dividend	240	230	720	689
Income available to common shareholders	$ 22,376	$ 31,997	$ 70,979	$ 90,817
Basic earnings per common share:
Continuing operations (in dollars per share)	$ 0.40	$ 0.72	$ 1.41	$ 2
Discontinued operations (in dollars per share)	0.04	(0.02)	0.06	(0.01)
Total (in dollars per share)	0.44	0.70	1.47	1.99
Diluted earnings per common share:
Continuing operations (in dollars per share)	0.40	0.72	1.40	1.99
Discontinued operations (in dollars per share)	0.04	(0.02)	0.06	(0.01)
Total (in dollars per share)	$ 0.44	$ 0.70	$ 1.46	$ 1.98
Weighted average shares outstanding:
Basic (in shares)	51,422	46,030	48,846	46,009
Diluted (in shares)	51,545	46,263	48,987	46,226
Mortgage banking originations
Non-interest income from continuing operations
Total non-interest income	$ 292	$ 15	$ 616	$ 487
Loan related income
Non-interest income from continuing operations
Total non-interest income	6,493	7,246	17,318	18,068
Deposit related fees
Non-interest income from continuing operations
Total non-interest income	8,705	7,004	23,088	22,675
Insurance commissions and fees
Non-interest income from continuing operations
Total non-interest income	2,895	2,930	8,486	8,504
Wealth management fees
Non-interest income from continuing operations
Total non-interest income	2,325	2,283	7,114	7,160
Total fee income
Non-interest income from continuing operations
Total non-interest income	$ 20,710	$ 19,478	$ 56,622	$ 56,894

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 22,616	$ 32,227	$ 71,699	$ 91,506
Other comprehensive income, before tax:
Changes in unrealized gain on debt securities available-for-sale	6,154	(9,929)	39,477	(36,931)
Income taxes related to other comprehensive income:
Changes in unrealized gain on debt securities available-for-sale	(1,575)	2,548	(10,127)	9,480
Total other comprehensive income/(loss)	4,579	(7,381)	29,350	(27,451)
Total comprehensive income	$ 27,195	$ 24,846	$ 101,049	$ 64,055

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Preferred stock	Common stock	Additional paid-in capital	Unearned compensation	Retained earnings	Accumulated other comprehensive income/(loss)	Treasury stock
Balance at beginning of period (in shares) at Dec. 31, 2017		522	45,290
Balance at beginning of period at Dec. 31, 2017	$ 1,496,264	$ 40,633	$ 460	$ 1,242,487	$ (6,531)	$ 239,179	$ 4,161	$ (24,125)
Comprehensive income:
Net income	91,506					91,506
Other comprehensive income (loss)	(27,451)						(27,451)
Total comprehensive income	64,055					91,506	(27,451)
Cash dividends declared on common shares	(29,972)					(29,972)
Cash dividends declared on preferred shares	(689)					(689)
Forfeited shares (in shares)			(18)
Forfeited shares				88	600			(688)
Exercise of stock options (in shares)			8
Exercise of stock options	102					(122)		224
Restricted stock grants (in shares)			185
Restricted stock grants				2,157	(7,011)			4,854
Stock-based compensation	4,281				4,281
Other, net (in shares)			(45)
Other, net	(1,726)			16				(1,742)
Balance at end of period (in shares) at Sep. 30, 2018		522	45,420
Balance at end of period at Sep. 30, 2018	1,532,315	$ 40,633	$ 460	1,244,748	(8,661)	305,259	(28,647)	(21,477)
Balance at beginning of period (in shares) at Jun. 30, 2018		522	45,420
Balance at beginning of period at Jun. 30, 2018	1,516,241	$ 40,633	$ 460	1,244,691	(10,096)	283,256	(21,266)	(21,437)
Comprehensive income:
Net income	32,227					32,227
Other comprehensive income (loss)	(7,381)						(7,381)
Total comprehensive income	24,846					32,227	(7,381)
Cash dividends declared on common shares	(9,994)					(9,994)
Cash dividends declared on preferred shares	(230)					(230)
Forfeited shares (in shares)			(4)
Forfeited shares				1	122			(123)
Restricted stock grants (in shares)			4
Restricted stock grants				56	(170)			114
Stock-based compensation	1,483				1,483
Other, net	(31)							(31)
Balance at end of period (in shares) at Sep. 30, 2018		522	45,420
Balance at end of period at Sep. 30, 2018	1,532,315	$ 40,633	$ 460	1,244,748	(8,661)	305,259	(28,647)	(21,477)
Balance at beginning of period (in shares) at Dec. 31, 2018		522	45,417
Balance at beginning of period at Dec. 31, 2018	1,552,918	$ 40,633	$ 460	1,245,013	(6,594)	308,839	(13,470)	(21,963)
Comprehensive income:
Net income	71,699					71,699
Other comprehensive income (loss)	29,350						29,350
Total comprehensive income	101,049					71,699	29,350
Acquisition of SI Financial Group, Inc. (in shares)			5,691
Acquisition of SI Financial Group, Inc.	176,711		$ 57	176,654
Cash dividends declared on common shares	(32,756)					(32,756)
Cash dividends declared on preferred shares	(720)					(720)
Treasury shares repurchased (in shares)			(910)
Treasury shares repurchased	(27,651)							(27,651)
Forfeited shares (in shares)			(59)
Forfeited shares				(234)	1,951			(1,717)
Exercise of stock options (in shares)			6
Exercise of stock options	69					$ (89)		158
Restricted stock grants (in shares)			284
Restricted stock grants				869	(8,372)			7,503
Stock-based compensation	3,546				3,546
Other, net (in shares)			(35)			(2)
Other, net	(942)			51				(991)
Balance at end of period (in shares) at Sep. 30, 2019		522	50,394
Balance at end of period at Sep. 30, 2019	1,772,224	$ 40,633	$ 517	1,422,353	(9,469)	$ 346,971	15,880	(44,661)
Balance at beginning of period (in shares) at Jun. 30, 2019		522	51,045
Balance at beginning of period at Jun. 30, 2019	1,779,837	$ 40,633	$ 517	1,421,461	(6,555)	336,542	11,301	(24,062)
Comprehensive income:
Net income	22,616					22,616
Other comprehensive income (loss)	4,579						4,579
Total comprehensive income	27,195					22,616	4,579
Cash dividends declared on common shares	(11,812)					(11,812)
Cash dividends declared on preferred shares	(240)					(240)
Treasury shares repurchased (in shares)			(800)
Treasury shares repurchased	(24,325)							(24,325)
Forfeited shares (in shares)			(8)
Forfeited shares				(25)	252			(227)
Exercise of stock options (in shares)			5
Exercise of stock options	55					(74)		129
Restricted stock grants (in shares)			152
Restricted stock grants				867	(4,709)			3,842
Stock-based compensation	1,543				1,543
Other, net	(29)			50		(61)		(18)
Balance at end of period (in shares) at Sep. 30, 2019		522	50,394
Balance at end of period at Sep. 30, 2019	$ 1,772,224	$ 40,633	$ 517	$ 1,422,353	$ (9,469)	$ 346,971	$ 15,880	$ (44,661)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Stockholders' Equity [Abstract]
Common stock, cash dividends declared (in dollars per share)	$ 0.23	$ 0.22	$ 0.69	$ 0.66
Preferred stock, cash dividends declared (in dollars per share)	$ 0.46	$ 0.44	$ 1.38	$ 1.32

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income from continuing operations	$ 68,885,000	$ 92,151,000
Net income from discontinued operations	2,814,000	(645,000)
Net income	71,699,000	91,506,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	30,068,000	18,735,000
Net amortization of securities	1,811,000	2,166,000
Change in unamortized net loan costs and premiums	8,964,000	(1,963,000)
Premises and equipment depreciation and amortization expense	7,844,000	7,836,000
Stock-based compensation expense	3,546,000	4,281,000
Accretion of purchase accounting entries, net	(9,589,000)	(15,735,000)
Amortization of other intangibles	4,201,000	3,732,000
Income from cash surrender value of bank-owned life insurance policies	(3,546,000)	(3,607,000)
Securities (gains) losses, net	(2,655,000)	696,000
Net (decrease) in loans held-for-sale	(2,920,000)	(889,000)
Change in right-of-use lease assets	10,025,000
Change in lease liabilities	(10,189,000)
Loss on disposition of assets	1,615,000	0
Gain on sale of real estate	5,000	0
Amortization of interest in tax-advantaged projects	4,459,000	3,212,000
Net change in other	(4,803,000)	10,354,000
Net cash provided by operating activities of continuing operations	107,721,000	120,969,000
Net cash (used) provided by operating activities of discontinued operations	(104,001,000)	60,722,000
Net cash (used) provided by operating activities	3,720,000	181,691,000
Cash flows from investing activities:
Net decrease in trading security	522,000	495,000
Purchases of marketable equity securities	(18,150,000)	(18,649,000)
Proceeds from sales of marketable equity securities	17,728,000	32,137,000
Purchases of securities available for sale	(30,032,000)	(223,337,000)
Proceeds from sales of securities available for sale	82,978,000	499,000
Proceeds from maturities, calls, and prepayments of securities available for sale	151,155,000	142,314,000
Purchases of securities held to maturity	(5,692,000)	(12,865,000)
Proceeds from maturities, calls, and prepayments of securities held to maturity	13,822,000	29,069,000
Net change in loans	395,643,000
Net change in loans		(609,637,000)
Proceeds from surrender of bank-owned life insurance	1,457,000	459,000
Purchase of Federal Home Loan Bank stock	(112,208,000)	(62,892,000)
Proceeds from sale of Federal Home Loan Bank stock	141,424,000	49,793,000
Net investment in limited partnership tax credits	(3,997,000)	(3,815,000)
Purchase of premises and equipment, net	(8,518,000)	(9,648,000)
Acquisitions, net of cash (paid) acquired	110,774,000	0
Proceeds from sale of other real estate	150,000	1,600,000
Net investing cash flows from discontinued operations	(2,000)	0
Net cash provided (used) by investing activities	737,054,000	(684,477,000)
Cash flows from financing activities:
Net increase in deposits	109,238,000	17,419,000
Proceeds from Federal Home Loan Bank advances and other borrowings	5,267,520,000	3,673,840,000
Repayments of Federal Home Loan Bank advances and other borrowings	(5,937,568,000)	(3,270,943,000)
Purchase of treasury stock	(27,651,000)	0
Exercise of stock options	69,000	102,000
Common and preferred stock cash dividends paid	(33,476,000)	(30,661,000)
Net cash (used) provided by financing activities	(621,868,000)	389,757,000
Net change in cash and cash equivalents	118,906,000	(113,029,000)
Cash and cash equivalents at beginning of period	183,189,000	248,763,000
Cash and cash equivalents at end of period	302,095,000	135,734,000
Supplemental cash flow information:
Interest paid on deposits	87,499,000	52,539,000
Interest paid on borrowed funds	27,499,000	22,824,000
Income taxes paid, net	8,368,000	758,000
Acquisition of non-cash assets and liabilities:
Assets acquired	1,595,054,000	0
Liabilities assumed	(1,530,010,000)	0
Other non-cash changes:
Other net comprehensive income	29,350,000	(27,451,000)
Reclass of aircraft and HOA loan portfolios to held-for-sale	205,557,000	0
Real estate owned acquired in settlement of loans	$ 0	$ (1,600,000)

BASIS OF PRESENTATION

BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION The Consolidated Financial Statements (the “financial statements”) of Berkshire Hills Bancorp, Inc. and its subsidiaries (the “Company” or “Berkshire”) have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company is a Delaware corporation, headquartered in Boston, Massachusetts, and the holding company for Berkshire Bank (the “Bank”), a Massachusetts-chartered trust company headquartered in Pittsfield, Massachusetts, and Berkshire Insurance Group, Inc. These financial statements include the accounts of the Company, its wholly-owned subsidiaries and the Bank’s consolidated subsidiaries. In consolidation, all significant intercompany accounts and transactions are eliminated. The results of operations of companies or assets acquired are included only from the dates of acquisition. All material wholly-owned and majority-owned subsidiaries are consolidated unless GAAP requires otherwise. The Company has evaluated subsequent events for potential recognition and/or disclosure through the date these consolidated financial statements were issued. These interim financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X, and accordingly, certain information and footnote disclosures normally included in financial statements prepared according to GAAP have been omitted. The results for any interim period are not necessarily indicative of results for the full year. These consolidated financial statements should be read in conjunction with the audited financial statements and note disclosures Berkshire Hills Bancorp, Inc. previously filed with the Securities and Exchange Commission in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. In management’s opinion, all adjustment’s necessary for a fair statement are reflected in the interim periods presented. Reclassifications Certain items in prior financial statements have been reclassified to conform to the current presentation. Recently Adopted Accounting Principles Effective January 1, 2019, the following new accounting guidance was adopted by the Company: • ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities; • ASU No. 2016-02, Leases (Topic 842)(additional information is disclosed in Note 11 - Leases of the Consolidated Financial Statements) In August 2017, the FASB issued ASU No. 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities.” The purpose of this updated guidance is to better align a company’s financial reporting for hedging activities with the economic objectives of those activities. ASU No. 2017-12 is effective for public business entities for fiscal years beginning after December 15, 2018, with early adoption, including adoption in an interim period, permitted. ASU 2017-12 requires a modified retrospective transition method in which the Company will recognize the cumulative effect of the change on the opening balance of each affected component of equity in the Consolidated Balance Sheets as of the date of adoption. In April 2019, the FASB issued ASU No. 2019-04 to clarify certain aspects of accounting for hedging activities addressed by ASU No. 2017-12, among other things (ASU No. 2019-04 amendments and pending adoption to FASB ASC Topics 326 and 825 are described in the section below). ASU No. 2017-12 became effective for the Company on January 1, 2019. The adoption was not material to the financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842)”. The pronouncement affects all entities that are participants to leasing agreements. From a lessee accounting perspective, the ASU requires a lessee to recognize assets and liabilities on the balance sheet for operating leases and changes many key definitions, including the definition of a lease. The ASU includes a short-term lease exception for leases with a term of twelve months or less, in which a lessee can make an accounting policy election not to recognize lease assets and lease liabilities. Lessees will continue to differentiate between finance leases (previously referred to as capital leases) and operating leases, using classification criteria that are substantially similar to the previous guidance. For lessees, the recognition, measurement, and presentation of expenses and cash flows arising from a lease have not significantly changed from previous GAAP. From a lessor accounting perspective, the guidance is largely unchanged, except for targeted improvements to align with new terminology under lessee accounting and with the updated revenue recognition guidance in Topic 606. For sale-leaseback transactions, for a sale to occur the transfer must meet the sale criteria under the new revenue standard, Topic 606. Entities will not be required to reassess transactions previously accounted under then existing guidance. The ASU includes additional quantitative and qualitative disclosures required by lessees and lessors to help users better understand the amount, timing, and uncertainty of cash flows arising from leases. ASU No. 2016-02 is effective for fiscal years beginning after December 31, 2018, and interim periods within those fiscal years. Lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. In July 2018, the FASB issued ASU No. 2018-11, “Leases (Topic 842) - Targeted Improvements” to provide entities with relief from the costs of implementing certain aspects of the new leasing standard. Specifically, under the amendments in ASU No. 2018-11 entities may elect not to recast the comparative periods presented when transitioning to the new leasing standard, and lessors may elect not to separate lease and non-lease components when certain conditions are met. As the Company elected the transition option provided in ASU No. 2018-11, the modified retrospective approach was applied on January 1, 2019 (as opposed to January 1, 2017). The Company also elected certain practical expedients provided under ASU No. 2016-02 whereby we will not reassess (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) initial direct costs for any existing leases. In December 2018, the FASB issued ASU No. 2018-20, “Leases (Topic 842): Narrow-Scope Improvements for Lessors,” which provides targeted improvements and clarification to guidance with FASB ASC Topic 842 specific to lessors. The amendments of ASU No. 2018-20 have the same effective date as ASU 2016-02 and may be applied either retrospectively or prospectively to all new and existing leases. The Company obtained a third-party software application which provides lease accounting under the guidelines of FASB ASC Topic 842. The amendments of ASU No. 2016-02 and subsequently issued ASUs, which provided additional guidance and clarifications to various aspects of FASB ASC Topic 842, became effective for the Company on January 1, 2019. The Company recognized right-of-use lease assets and related lease liabilities totaling $79.6 million and $82.8 million respectively as of January 1, 2019. The right-of-use lease assets and related lease liabilities recognized at January 1, 2019 include right-of-use lease assets and lease liabilities classified as discontinued operations. See Note 11 - Leases for more information. Future Application of Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13 "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This ASU improves financial reporting by requiring timelier recording of credit losses on loans and other financial instruments. The ASU requires companies to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Forward-looking information will now be used in credit loss estimates. The ASU requires enhanced disclosures to provide better understanding surrounding significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of a company’s portfolio. These disclosures include qualitative and quantitative requirements that provide additional information about the amounts recorded in the financial statements. Additionally, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration (“PCD assets”). Most debt instruments will require a cumulative-effect adjustment to retained earnings on the statement of financial position as of the beginning of the first reporting period in which the guidance is adopted (modified retrospective approach). However, there is instrument-specific (such as PCD assets) transition guidance requiring a prospective transition approach. For existing purchased credit-impaired assets, upon adoption, the amortized cost basis will be adjusted to reflect the addition of the allowance for credit losses. This transition relief avoids the need to reassess purchased financial assets that exist as of the date of adoption in order to determine whether they would have met, at acquisition, the new criteria of ‘more than insignificant’ credit deterioration since origination. The transition relief also allows the remaining accretable discount (based on the revised amortized cost basis) to accrete into interest income over the life of the related asset using the interest method. ASU No. 2016-13 is effective for interim and annual periods beginning after December 15, 2019. Early application will be permitted for interim and annual periods beginning after December 15, 2018. The Company is evaluating the provisions of ASU No. 2016-13, and will closely monitor developments and additional guidance to determine the potential impact on the Company's Consolidated Financial Statements. A cross-functional working group has been formed and is comprised of individuals from various functional areas including credit, risk management, finance and information technology, among others. This working group meets periodically to discuss the latest developments and ensure progress is being made. Management is working through its implementation plan which includes assessment and documentation of processes and internal controls; model development and documentation; and system configuration. Management is currently finalizing processes, policies and disclosures in preparation for performing a full end-to-end parallel run. This parallel run will be completed in the fourth quarter of 2019 for the period ended September 30, 2019. Management is also in the process of implementing a third-party vendor solution to assist us in the application of ASU No. 2016-13. The Company expects the primary changes to be the application of the new expected credit loss model from the incurred model. In addition, the Company expects the guidance to change the presentation of credit losses within the available-for-sale fixed maturities portfolio through an allowance method rather than as a direct write-down. The expected credit loss model will require a financial asset to be presented at the net amount expected to be collected. The allowance method for available-for-sale debt securities will allow the Company to record reversals of credit losses if the estimate of credit losses declines. The Company is in the process of identifying and implementing required changes to loan loss estimation models and processes and evaluating the impact of this new accounting guidance, which at the date of adoption is expected to increase the allowance for credit losses with a resulting increase to loans for the non-accretable discount on existing purchased credit-impaired assets and a negative adjustment to retained earnings for the remaining credit losses for financial assets. In January 2017, the FASB issued ASU No. 2017-04, “Intangibles: Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” The ASU simplifies the test for goodwill impairment by eliminating the second step of the current two-step method. Under the new accounting guidance, entities will compare the fair value of a reporting unit with its carrying amount. If the carrying amount exceeds the reporting unit’s fair value, the entity is required to recognize an impairment charge for this amount. Current guidance requires an entity to proceed to a second step, whereby the entity would determine the fair value of its assets and liabilities. The new method applies to all reporting units. The performance of a qualitative assessment is still allowable. This accounting guidance is effective prospectively for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. The Company does not expect adoption to have a material effect on its Consolidated Financial Statements. In August 2018, the FASB issued ASU No. 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement.” This ASU eliminates, adds, and modifies certain disclosure requirements for fair value measurements. Among the changes, entities will no longer be required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, but will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. ASU No. 2018-13 is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. Entities are also allowed to elect early adoption for the eliminated or modified disclosure requirements and delay adoption of the new disclosure requirements until their effective date. As ASU No. 2018-13 only revises disclosure requirements, it will not have a material impact on its Consolidated Financial Statements. In August 2018, the FASB issued ASU No. 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20): Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans.” This ASU amends and modifies the disclosure requirements for employers that sponsor defined benefit pension or other post-retirement plans. The amendments in this update remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. ASU No. 2018-14 is effective for fiscal years ending after December 15, 2020, with early adoption permitted. As ASU No. 2018-14 only revises disclosure requirements, it will not have a material impact on the Consolidated Financial Statements. In August 2018, the FASB issued ASU No. 2018-15, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract.” ASU No. 2018-15 clarifies certain aspects of ASU No. 2015-05, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement,” which was issued in April 2015. Specifically, ASU No. 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). ASU No. 2018-15 does not affect the accounting for the service element of a hosting arrangement that is a service contract. ASU No. 2018-15 is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. The amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. While the Company continues to assess all potential impacts of the standard, we currently do not expect adoption to have a material impact on the Company's Consolidated Financial Statements. As mentioned in the previous section in April 2019 the FASB issued ASU No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments.” With respect to FASB ASC Topic 326, Financial Instruments - Credit Losses, ASU No. 2019-04 clarifies the scope of the credit losses standard and addresses issues related to accrued interest receivable balances, recoveries, variable interest rates and prepayments, among other things. With respect to FASB ASC Topic 825, Financial Instruments, on recognizing and measuring financial instruments, ASU No. 2019-04 addresses the scope of the guidance, the requirement for remeasurement under FASB ASC Topic 820 when using the measurement alternative, certain disclosure requirements and which equity securities have to be remeasured at historical exchange rates. The amendments to FASB ASC Topic 326 have the same effective dates as ASU 2016-13 (i.e., the first quarter of 2020). The Company is currently evaluating the potential impact of FASB ASC Topic 326 amendments on the Company’s Consolidated Financial Statements. The amendments to FASB ASC Topic 825 are effective for interim and annual reporting periods beginning after December 15, 2019 and are not expected to have a material impact on the Company’s Consolidated Financial Statements. In May 2019, the FASB issued ASU No. 2019-05, “Financial Instruments - Credit Losses (Topic 326); Targeted Transition Relief.” ASU No. 2019-05 allows entities to irrevocably elect, upon adoption of ASU No. 2016-13, the fair value option on financial instruments that (1) were previously recorded at amortized cost and (2) are within the scope of ASC 326-20 if the instruments are eligible for the fair value option under ASC 825-10. The fair value option election does not apply to held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. ASU No. 2019-05 has the same effective date as ASU No. 2016-13 (i.e., the first quarter of 2020). The Company is continuing to evaluate the potential impact of ASU No. 2016-13 and the subsequently issued ASUs, which provide additional guidance and clarifications to various aspects of FASB ASC Topic 326.

ACQUISITIONS

ACQUISITIONS	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
ACQUISITIONS	ACQUISITIONS SI Financial Group, Inc. At the close of business on May 17, 2019, the Company completed the acquisition of SI Financial Group, Inc. (“SIFI”), the parent company of Savings Institute Bank and Trust Company (“Savings Institute”). Savings Institute also merged with and into Berkshire Bank. With this acquisition, the Company increased its market presence with 18 branches in Eastern Connecticut and 5 branches in Rhode Island, adding to the Company's existing 9 Connecticut branches. As established by the merger agreement, each of the 11.858 million outstanding shares of SIFI common stock was converted into the right to receive 0.48 shares of the Company's common stock, plus cash in lieu of fractional shares. As of close of business on May 17, 2019, the Company issued 5.691 million common shares as merger consideration, pursuant to the merger agreement. The value of this consideration was measured at $175.8 million for the common stock based on the $30.89 closing price of the Company’s common stock on the issuance date. SIFI had a stock option plan, and as part of the acquisition agreement, Berkshire agreed to continue the vesting schedules of option holders of SIFI stock with corresponding Berkshire stock with a share conversion ratio of 48% . The fair value of the vested portion of the options was $0.9 million , and was included as part of consideration paid for SIFI. The acquisition was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. Accordingly, the Company recognizes amounts for identifiable assets acquired and liabilities assumed at their estimated acquisition date fair value, with any excess of purchase consideration over the net assets being reported as goodwill. Due to the complexity in valuing the assets acquired and liabilities assumed and the significant amount of data inputs required, the valuation of the assets and liabilities acquired is not yet final. Fair value estimates are based on the information available, and are subject to change for up to one year after the closing date of the acquisition as additional information relative to the closing date fair values becomes available. In the third quarter the Company did not recognize a measurement period adjustment. The following table provides a summary of the assets acquired and liabilities assumed and the associated fair value adjustments as recorded by the Company at acquisition: (in thousands) As Acquired Fair Value Adjustments As Recorded by the Company Consideration Paid: Company common stock issued to SIFI common shareholders $ 175,804 Fair value of SIFI stock options converted to Berkshire options 907 Cash in lieu paid to SIFI shareholders 14 Total consideration paid $ 176,725 Recognized amounts of identifiable assets acquired and (liabilities) assumed, at fair value: Cash and short-term investments $ 110,774 $ — $ 110,774 Investment securities 144,629 (1,261 ) (a) 143,368 Loans held for sale 1,005 — 1,005 Loans, net 1,332,127 (29,388 ) (b) 1,302,739 Premises and equipment 19,039 (2,092 ) (c) 16,947 Core deposit intangibles — 17,980 (d) 17,980 Deferred tax assets, net 6,629 10,607 (e) 17,236 Goodwill and other intangibles 16,063 (16,063 ) (f) — Other assets 60,648 (341 ) 60,307 Deposits (1,327,115 ) (7,733 ) (g) (1,334,848 ) Borrowings (154,726 ) 1,717 (h) (153,009 ) Other liabilities (33,987 ) (8,166 ) (i) (42,153 ) Total identifiable net assets $ 175,086 $ (34,740 ) $ 140,346 Goodwill 36,379 _____________________________________ Explanation of Certain Fair Value Adjustments: (a) The adjustment represents the write down of the book value of securities to their estimated fair value at the date of acquisition. (b) The adjustment represents the write-off of $15.6 million in allowance for loan and lease losses and the write down of the book value of loans to their estimated fair value based on interest rates and expected cash flows as of the acquisition date, which includes an estimate of expected loan loss inherent in the portfolio. Loans with evidence of credit deterioration at acquisition are accounted for under ASC 310-30 and had a book value of $55.8 million and had a fair value of $32.1 million , including a $4.2 million fair value adjustment that is accretable in earnings. Non-impaired loans accounted for under ASC 310-20 had a book value of $1.29 billion and have a fair value of $1.27 billion , including a $6.7 million fair value adjustment discount that is amortized over the remaining term of the loans using the effective interest method, or a straight-line method if the loan is a revolving credit facility. (c) The adjustment represents a decreased fair value based on the appraised value of Savings Institute’s owned branches comprised of $1.1 million for land. This is in addition to a $1.0 million reduction of the book value of furniture, fixtures, and equipment, to their estimated fair value and the immediate expensing of equipment not meeting the thresholds for capitalization in accordance with Company policy. The adjustments will be depreciated over the remaining estimated economic lives of the assets. (d) The adjustment represents the value of the core deposit base assumed in the acquisition. The core deposit asset was recorded as an identifiable intangible asset and will be amortized over the estimated useful life of the deposit base ( 10 years ). (e) Represents net deferred tax assets resulting from the fair value adjustments related to the acquired assets and liabilities, identifiable intangibles, and other purchase accounting adjustments. (f) Represents the write-off of goodwill and intangible assets from a prior SIFI acquisition. (g) The adjustment is necessary because the weighted average interest rate of time deposits exceeded the cost of similar funding at the time of acquisition. The amount will be amortized over the estimated useful life of eleven months . (h) Adjusts borrowings by a reduction of $0.8 million to their estimated fair value, which is calculated based on current market rates. This is in addition to a $0.9 million reduction to the estimated fair value for the SI Capital Trust II, which is calculated based on the amount an institution would be willing to purchase the instrument at in the open market. (i) Adjusts the book value of other liabilities to their estimated fair value at the acquisition date. The adjustment consists of a $7.6 million increase to post-retirement liabilities due to change-in-control provisions, a $0.8 million increase in bank-owned life insurance liabilities, offset by a decrease of $0.4 to the unfunded commitment reserve. Except for collateral dependent loans with deteriorated credit quality, the fair values for loans acquired were estimated using cash flow projections based on the remaining maturity and repricing terms. Cash flows were adjusted by estimating future credit losses and the rate of prepayments. Projected monthly cash flows were then discounted to present value using a risk-adjusted market rate for similar loans. For collateral dependent loans with deteriorated credit quality, the Company estimated fair value by analyzing the value of the underlying collateral of the loans, assuming the fair values of the loans were derived from the eventual sale of the collateral. Those values were discounted using market derived rates of return, with consideration given to the period of time and costs associated with the foreclosure and disposition of the collateral. There was no carryover of the seller’s allowance for credit losses associated with the loans acquired, as the loans were initially recorded at fair value. Provisional information about the Savings Institute acquired loan portfolio subject to ASC 310-30 as of May 17, 2019 is as follows (in thousands): ASC 310-30 Loans Gross contractual receivable amounts at acquisition $ 55,754 Contractual cash flows not expected to be collected (nonaccretable discount) (19,427 ) Expected cash flows at acquisition 36,327 Interest component of expected cash flows (accretable discount) (4,200 ) Fair value of acquired loans $ 32,127 Capitalized goodwill, which is not amortized for book purposes, is not deductible for tax purposes. Direct acquisition and integration costs of the Savings Institute acquisition were expensed as incurred, and totaled $15.1 million during the nine months ending September 30, 2019 and there were no ne for the same period of 2018. Pro Forma Information (unaudited) The following table presents selected unaudited pro forma financial information reflecting the acquisition of SIFI assuming the acquisition was completed as of January 1, 2018. The preliminary valuation of the assets and liabilities acquired has been used to prepare pro forma adjustments. The final allocation could differ materially from the preliminary valuation. Fair value estimates are based on the information available, and are subject to change for up to one year after the closing date of the acquisition as additional information relative to the closing date fair values becomes available. The unaudited pro forma financial information includes adjustments for scheduled amortization and accretion of fair value adjustments. These adjustments would have been different if they had been recorded on January 1, 2018, and they do not include the impact of prepayments. The unaudited pro forma financial information is presented for illustrative purposes only and is not necessarily indicative of the combined financial results of the Company and the acquisition had the transaction actually been completed at the beginning of the periods presented, nor does it indicate future results for any other interim or full-year period. The unaudited pro forma information is based on the actual financial statements of Berkshire and the acquired business for the periods shown until the dates of acquisition, at which time the acquired business operations became included in Berkshire’s financial statements. For whole-bank acquisitions, the Company has determined it is impractical to report the amounts of revenue and earnings of each entity since acquisition date. Due to the integration of their operations with those of the organization, the Company does not record revenue and earnings separately. The revenue and earnings of SIFI’s operations are included in the Consolidated Statement of Income. The unaudited pro forma information, for the nine months ended September 30, 2019 and 2018, set forth below reflects adjustments related to (a) amortization and accretion of purchase accounting fair value adjustments; (b) amortization of core deposit and customer relationship intangibles; and (c) an estimated tax rate of 26.83 percent . Direct acquisition expenses incurred by the Company during 2019, as noted above, are reversed for the purposes of this unaudited pro forma information. Furthermore, the unaudited pro forma information does not reflect management’s estimate of any revenue-enhancing or anticipated cost-savings that could occur as a result of the acquisition. Information in the following table is shown in thousands: Pro Forma (unaudited) Nine Months Ended September 30, 2019 2018 Net interest income $ 292,495 $ 305,643 Non-interest income 65,138 67,181 Income available to common shareholders 83,557 105,233

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS	9 Months Ended
	Sep. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
DISCONTINUED OPERATIONS	DISCONTINUED OPERATIONS During the first quarter of 2019, the Company reached the decision to pursue the sale of the national mortgage banking operations of First Choice Loan Services, Inc. (“FCLS”) – a subsidiary of the Bank. The decision was based on a number of strategic priorities and other factors, including the competitiveness of the mortgage industry. FCLS continues to operate and serve its customers as the Company initiates the process of identifying a buyer. The potential transaction is expected to close within 12 months . As a result of these actions, the Company classified the operations of FCLS as discontinued under ASC 205-20. The Consolidated Balance Sheets, Consolidated Statements of Income, and Consolidated Statements of Cash Flows present discontinued operations retrospectively for current and prior periods. The following is a summary of the assets and liabilities of the discontinued operations of FCLS at September 30, 2019 and December 31, 2018: (in thousands) September 30, 2019 December 31, 2018 Assets Loans held for sale, at fair value $ 209,205 $ 94,050 Premises and equipment, net 1,561 1,867 Other assets 31,513 18,342 Total assets $ 242,279 $ 114,259 Liabilities Other liabilities $ 33,614 $ 9,597 Total liabilities $ 33,614 $ 9,597 FCLS funds its lending operations and maintains working capital through an intercompany line-of-credit with the Bank. Although the sale of FCLS will contemplate settlement of these borrowings, debt was not allocated to discontinued operations due to the intercompany nature of the borrowings. When the transaction closes, the Company will reallocate these funds to various purposes, including but not limited to, pay-down of short-term debt with the Federal Home Loan Bank. The following presents operating results of the discontinued operations of FCLS for the three and nine months ended September 30, 2019 and September 30, 2018: Three Months Ended September 30, Nine Months Ended September 30, (in thousands) 2019 2018 2019 2018 Interest income $ 1,765 $ 1,622 $ 4,627 $ 4,111 Interest expense 1,030 666 2,676 1,613 Net interest income 735 956 1,951 2,498 Non-interest income 15,055 9,246 37,114 30,281 Total net revenue 15,790 10,202 39,065 32,779 Non-interest expense 13,043 11,349 35,090 33,662 Income from discontinued operations before income taxes 2,747 (1,147 ) 3,975 (883 ) Income tax expense 790 (305 ) 1,161 (238 ) Net income from discontinued operations $ 1,957 $ (842 ) $ 2,814 $ (645 ) FCLS also originates mortgages designated as held-for-investment. This component of FCLS’s operations was not considered discontinued, since the Company expects to continue to originate mortgages designated as held-for-investment in its footprint on a small scale through processes considered as continuing operations.

TRADING SECURITY

TRADING SECURITY	9 Months Ended
	Sep. 30, 2019
Investments, Debt and Equity Securities [Abstract]
TRADING SECURITY	TRADING SECURITY The Company holds a tax-advantaged economic development bond accounted for at fair value. The security had an amortized cost of $9.6 million and $10.1 million , and a fair value of $11.1 million and $11.2 million , at September 30, 2019 and December 31, 2018 , respectively. As discussed further in Note 10 - Derivative Financial Instruments and Hedging Activities, the Company entered into a swap contract to swap-out the fixed rate of the security in exchange for a variable rate. The Company does not purchase securities with the intent of selling them in the near term, and there were no other securities in the trading portfolio at September 30, 2019 or December 31, 2018.

SECURITIES AVAILABLE FOR SALE,

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES	9 Months Ended
	Sep. 30, 2019
Investments, Debt and Equity Securities [Abstract]
SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES	SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES The Company adopted ASU-2016-01 "Recognition and Measurement of Financial Assets and Financial Liabilities" in the first quarter of 2018. All changes in the fair value of marketable equity securities, including other-than-temporary impairment, are immediately recognized in earnings. The following is a summary of securities available for sale, held to maturity, and marketable equity securities: (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value September 30, 2019 Securities available for sale Municipal bonds and obligations $ 110,482 $ 6,299 $ — $ 116,781 Agency collateralized mortgage obligations 834,532 9,548 (228 ) 843,852 Agency mortgage-backed securities 173,304 1,358 (446 ) 174,216 Agency commercial mortgage-backed securities 60,567 548 (144 ) 60,971 Corporate bonds 128,268 1,585 (832 ) 129,021 Other bonds and obligations 43,612 1,153 (2 ) 44,763 Total securities available for sale 1,350,765 20,491 (1,652 ) 1,369,604 Securities held to maturity Municipal bonds and obligations 258,494 13,838 (3 ) 272,329 Agency collateralized mortgage obligations 70,314 3,620 (36 ) 73,898 Agency mortgage-backed securities 6,439 30 — 6,469 Agency commercial mortgage-backed securities 10,369 179 — 10,548 Tax advantaged economic development bonds 18,760 225 (1,095 ) 17,890 Other bonds and obligations 299 — — 299 Total securities held to maturity 364,675 17,892 (1,134 ) 381,433 Marketable equity securities 55,767 5,149 (1,320 ) 59,596 Total $ 1,771,207 $ 43,532 $ (4,106 ) $ 1,810,633 (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value December 31, 2018 Securities available for sale Municipal bonds and obligations $ 109,648 $ 2,272 $ (713 ) $ 111,207 Agency collateralized mortgage obligations 944,946 1,130 (15,192 ) 930,884 Agency mortgage-backed securities 175,406 36 (5,121 ) 170,321 Agency commercial mortgage-backed securities 62,200 — (3,275 ) 58,925 Corporate bonds 120,718 593 (1,355 ) 119,956 Other bonds and obligations 8,355 34 (35 ) 8,354 Total securities available for sale 1,421,273 4,065 (25,691 ) 1,399,647 Securities held to maturity Municipal bonds and obligations 264,524 3,569 (3,601 ) 264,492 Agency collateralized mortgage obligations 71,637 533 (778 ) 71,392 Agency mortgage-backed securities 7,219 — (297 ) 6,922 Agency commercial mortgage-backed securities 10,417 — (289 ) 10,128 Tax advantaged economic development bonds 19,718 22 (1,698 ) 18,042 Other bonds and obligations 248 — — 248 Total securities held to maturity 373,763 4,124 (6,663 ) 371,224 Marketable equity securities 55,471 4,370 (3,203 ) 56,638 Total $ 1,850,507 $ 12,559 $ (35,557 ) $ 1,827,509 The amortized cost and estimated fair value of available for sale (“AFS”) and held to maturity (“HTM”) securities segregated by contractual maturity at September 30, 2019 are presented below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Mortgage-backed securities are shown in total, as their maturities are highly variable. Available for sale Held to maturity Amortized Fair Amortized Fair (In thousands) Cost Value Cost Value Within 1 year $ 31,922 $ 32,001 $ 7,124 $ 7,124 Over 1 year to 5 years 26,647 26,628 14,213 14,361 Over 5 years to 10 years 77,205 78,590 10,897 10,970 Over 10 years 146,588 153,346 245,319 258,063 Total bonds and obligations 282,362 290,565 277,553 290,518 Mortgage-backed securities 1,068,403 1,079,039 87,122 90,915 Total $ 1,350,765 $ 1,369,604 $ 364,675 $ 381,433 During the three months ended September 30, 2019, there were no securities sold. During the nine months ended September 30, 2019, the proceeds from the sale of AFS securities totaled $83.0 million . During the nine months ended September 30, 2019 gross gains totaled $11 thousand and gross losses totaled $7 thousand . These gains and losses are included in gain/(loss) on securities, net on the consolidated statements of income. During the three and nine months ended September 30, 2018, the proceeds from the sale of AFS securities totaled $0.5 million . During the three and nine months ended September 30, 2018 gross gains totaled $6 thousand and there were no gross losses. Securities available for sale and held to maturity with unrealized losses, segregated by the duration of their continuous unrealized loss positions, are summarized as follows: Less Than Twelve Months Over Twelve Months Total Gross Gross Gross Unrealized Fair Unrealized Fair Unrealized Fair (In thousands) Losses Value Losses Value Losses Value September 30, 2019 Securities available for sale Municipal bonds and obligations $ — $ — $ — $ — $ — $ — Agency collateralized mortgage obligations 128 47,441 100 15,642 228 63,083 Agency mortgage-backed securities 51 18,487 395 31,003 446 49,490 Agency commercial mortgage-backed securities 32 9,459 112 11,450 144 20,909 Corporate bonds 202 28,885 630 37,547 832 66,432 Other bonds and obligations 1 1,333 1 2,044 2 3,377 Total securities available for sale 414 105,605 1,238 97,686 1,652 203,291 Securities held to maturity Municipal bonds and obligations 3 802 — — 3 802 Agency collateralized mortgage obligations 36 10,377 — — 36 10,377 Agency mortgage-backed securities — — — — — — Tax advantaged economic development bonds — — 1,095 6,819 1,095 6,819 Total securities held to maturity 39 11,179 1,095 6,819 1,134 17,998 Total $ 453 $ 116,784 $ 2,333 $ 104,505 $ 2,786 $ 221,289 December 31, 2018 Securities available for sale Municipal bonds and obligations $ 55 $ 3,186 $ 658 $ 11,787 $ 713 $ 14,973 Agency collateralized mortgage obligations 76 39,114 15,116 755,528 15,192 794,642 Agency mortgage-backed securities 53 5,500 5,068 162,439 5,121 167,939 Agency commercial mortgage-backed securities 44 1,503 3,231 57,422 3,275 58,925 Corporate bonds 1,348 81,502 7 2,561 1,355 84,063 Other bonds and obligations — — 35 3,030 35 3,030 Total securities available for sale 1,576 130,805 24,115 992,767 25,691 1,123,572 Securities held to maturity Municipal bonds and obligations 127 17,596 3,474 103,759 3,601 121,355 Agency collateralized mortgage obligations — — 778 43,138 778 43,138 Agency mortgage-backed securities — — 297 6,922 297 6,922 Agency commercial mortgage-backed securities — — 289 10,128 289 10,128 Tax advantaged economic development bonds 65 8,078 1,633 6,512 1,698 14,590 Total securities held to maturity 192 25,674 6,471 170,459 6,663 196,133 Total $ 1,768 $ 156,479 $ 30,586 $ 1,163,226 $ 32,354 $ 1,319,705 Debt Securities The Company expects to recover its amortized cost basis on all debt securities in its AFS and HTM portfolios. Furthermore, the Company does not intend to sell nor does it anticipate that it will be required to sell any of its securities in an unrealized loss position as of September 30, 2019 , prior to this recovery. The Company’s ability and intent to hold these securities until recovery is supported by the Company’s strong capital and liquidity positions as well as its historically low portfolio turnover. The following summarizes, by investment security type, the basis for the conclusion that the debt securities in an unrealized loss position within the Company’s AFS and HTM portfolios were not other-than-temporarily impaired at September 30, 2019 : AFS collateralized mortgage obligations At September 30, 2019 , 33 out of the total 251 securities in the Company’s portfolio of AFS collateralized mortgage obligations were in unrealized loss positions. Aggregate unrealized losses represented 0.4% of the amortized cost of securities in unrealized loss positions. The Federal National Mortgage Association (“FNMA”), Federal Home Loan Mortgage Corporation (“FHLMC”), and Government National Mortgage Association (“GNMA”) guarantee the contractual cash flows of all of the Company’s collateralized mortgage obligations. The securities are investment grade rated and there were no material underlying credit downgrades during the quarter. All securities are performing. AFS commercial and residential mortgage-backed securities At September 30, 2019 , 23 out of the total 97 securities in the Company’s portfolio of AFS mortgage-backed securities were in unrealized loss positions. Aggregate unrealized losses represented 0.8% of the amortized cost of securities in unrealized loss positions. The FNMA, FHLMC, and GNMA guarantee the contractual cash flows of all of the Company’s mortgage-backed securities. The securities are investment grade rated and there were no material underlying credit downgrades during the quarter. All securities are performing. AFS corporate bonds At September 30, 2019 , 10 out of the total 25 securities in the Company’s portfolio of AFS corporate bonds were in unrealized loss positions. Aggregate unrealized losses represents 1.2% of the amortized cost of bonds in unrealized loss positions. The Company reviews the financial strength of all of these bonds and has concluded that the amortized cost remains supported by the expected future cash flows of these securities. AFS other bonds and obligations At September 30, 2019 , 5 out of the total 10 securities in the Company’s portfolio of other bonds and obligations were in unrealized loss positions. Aggregate unrealized losses represented 0.1% of the amortized cost of securities in unrealized loss positions. The securities are all investment grade rated, and there were no material underlying credit downgrades during the quarter. All securities are performing. HTM Municipal bonds and obligations At September 30, 2019, 1 out of the total 209 securities in the Company’s portfolio of HTM municipal bonds and obligations were in an unrealized loss position. Aggregate unrealized losses represented 0.4% of the amortized cost of securities in unrealized loss positions. The Company continually monitors the municipal bond sector of the market carefully and periodically evaluates the appropriate level of exposure to the market. At this time, the Company feels the bonds in this portfolio carry minimal risk of default and the Company is appropriately compensated for that risk. There were no material underlying credit downgrades during the quarter. All securities are performing. HTM collateralized mortgage obligations At September 30, 2019 , 1 out of the total 9 securities in the Company’s portfolio of HTM collateralized mortgage obligations were in an unrealized loss position. Aggregate unrealized losses represented 0.3% of the amortized cost of securities in unrealized loss positions. The FNMA, FHLMC, and GNMA guarantee the contractual cash flows of all of the Company's collateralized residential mortgage obligations. The securities are investment grade rated, and there were no material underlying credit downgrades during the quarter. All securities are performing. HTM tax-advantaged economic development bonds At September 30, 2019, 1 out of the total 5 securities in the Company’s portfolio of tax-advantaged economic development bonds were in an unrealized loss position. Aggregate unrealized losses represented 13.8% of the amortized cost of the security in an unrealized loss position. The above mentioned tax-advantaged economic bond remains a special mention rated asset. The Company believes that more likely than not all the principal outstanding will be collected. All securities are performing.

LOANS

LOANS	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
LOANS	LOANS The Company’s loan portfolio is segregated into the following segments: commercial real estate, commercial and industrial, residential mortgage, and consumer. Commercial real estate loans include construction and other commercial real estate. Residential mortgage loans include classes for 1-4 family owner occupied and construction loans. Consumer loans include home equity, direct and indirect auto, and other. These portfolio segments each have unique risk characteristics that are considered when determining the appropriate level for the allowance for loan losses. A substantial portion of the loan portfolio is secured by real estate in Massachusetts, southern Vermont, northeastern New York, New Jersey, and in the Bank’s other New England lending areas. The ability of many of the Bank’s borrowers to honor their contracts is dependent, among other things, on the specific economy and real estate markets of these areas. Total loans include business activity loans and acquired loans. Acquired loans are those loans acquired from previous mergers and acquisitions. Acquired loans that are refinanced are transferred to business activity loans. Business activity and acquired loans are serviced, managed, and accounted for under the Company's same control environment. During the nine months ended September 30, 2019, the Company reclassified $169 million of aircraft loans and $29 million of homeowners association loans from commercial and industrial to held-for-sale, reflecting its intent to sell these portfolios. These loans are not contained in the balances below and are accounted for at the lower of carrying value or fair market value. The Company reviews these loans at least quarterly for impairment. The following is a summary of total loans: September 30, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ 320,492 $ 59,840 $ 380,332 $ 327,792 $ 25,220 $ 353,012 Other commercial real estate 2,436,759 1,211,370 3,648,129 2,260,919 786,290 3,047,209 Total commercial real estate 2,757,251 1,271,210 4,028,461 2,588,711 811,510 3,400,221 Commercial and industrial loans: 1,383,530 461,556 1,845,086 1,513,538 466,508 1,980,046 Total commercial loans 4,140,781 1,732,766 5,873,547 4,102,249 1,278,018 5,380,267 Residential mortgages: 1-4 family 2,249,158 574,442 2,823,600 2,317,716 238,952 2,556,668 Construction 9,653 5,404 15,057 9,582 174 9,756 Total residential mortgages 2,258,811 579,846 2,838,657 2,327,298 239,126 2,566,424 Consumer loans: Home equity 278,783 115,265 394,048 289,961 86,719 376,680 Auto and other 560,080 52,309 612,389 647,236 72,646 719,882 Total consumer loans 838,863 167,574 1,006,437 937,197 159,365 1,096,562 Total loans $ 7,238,455 $ 2,480,186 $ 9,718,641 $ 7,366,744 $ 1,676,509 $ 9,043,253 The carrying amount of the acquired loans at September 30, 2019 totaled $2.5 billion . A subset of these loans were determined to have evidence of credit deterioration at acquisition date, which is accounted for in accordance with ASC 310-30. These purchased credit-impaired loans presently maintain a carrying value of $69.3 million (and a note balance of $163.9 million ). These loans are evaluated for impairment through the periodic reforecasting of expected cash flows. Loans considered not credit-impaired at acquisition date had a carrying amount of $2.4 billion . At December 31, 2018, acquired loans maintained a carrying value of $1.7 billion and purchased credit-impaired loans totaled $47.3 million (note balance of $124.0 million). Loans considered not credit-impaired at acquisition date had a carrying amount of $1.6 billion . The following table summarizes activity in the accretable yield for the acquired loan portfolio that falls under the purview of ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality : Three Months Ended September 30, (In thousands) 2019 2018 Balance at beginning of period $ 5,420 $ 6,304 Acquisitions — — Accretion (2,872 ) (4,548 ) Net reclassifications from (to) nonaccretable difference 2,066 3,410 Payments received, net (196 ) (543 ) Balance at end of period $ 4,418 $ 4,623 Nine Months Ended September 30, (In thousands) 2019 2018 Balance at beginning of period $ 2,840 $ 11,561 Acquisitions 4,200 — Accretion (6,470 ) (14,862 ) Net reclassifications from (to) nonaccretable difference 4,195 10,460 Payments received, net (356 ) (2,455 ) Reclassification to TDR 9 — Disposals — (81 ) Balance at end of period $ 4,418 $ 4,623 The following is a summary of past due loans at September 30, 2019 and December 31, 2018: Business Activities Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Current Total Loans Past Due > September 30, 2019 Commercial real estate: Construction $ — $ — $ 4,794 $ 4,794 $ 315,698 $ 320,492 $ 4,794 Other commercial real estate 471 1 13,594 14,066 2,422,693 2,436,759 268 Total 471 1 18,388 18,860 2,738,391 2,757,251 5,062 Commercial and industrial loans: Total 1,271 636 11,375 13,282 1,370,248 1,383,530 1 Residential mortgages: 1-4 family 369 1,225 3,056 4,650 2,244,508 2,249,158 873 Construction — — — — 9,653 9,653 — Total 369 1,225 3,056 4,650 2,254,161 2,258,811 873 Consumer loans: — Home equity — 50 1,376 1,426 277,357 278,783 111 Auto and other 3,506 790 2,931 7,227 552,853 560,080 1 Total 3,506 840 4,307 8,653 830,210 838,863 112 Total $ 5,617 $ 2,702 $ 37,126 $ 45,445 $ 7,193,010 $ 7,238,455 $ 6,048 Business Activities Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Current Total Loans Past Due > December 31, 2018 Commercial real estate: Construction $ — $ — $ — $ — $ 327,792 $ 327,792 $ — Other commercial real estate 913 276 18,833 20,022 2,240,897 2,260,919 993 Total 913 276 18,833 20,022 2,568,689 2,588,711 993 Commercial and industrial loans: Total 4,694 975 4,636 10,305 1,503,233 1,513,538 4 Residential mortgages: 1-4 family 1,631 1,619 1,440 4,690 2,313,026 2,317,716 66 Construction — — — — 9,582 9,582 — Total 1,631 1,619 1,440 4,690 2,322,608 2,327,298 66 Consumer loans: Home equity 618 15 933 1,566 288,395 289,961 — Auto and other 3,543 615 1,699 5,857 641,379 647,236 — Total 4,161 630 2,632 7,423 929,774 937,197 — Total $ 11,399 $ 3,500 $ 27,541 $ 42,440 $ 7,324,304 $ 7,366,744 $ 1,063 Acquired Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Acquired Total Loans Past Due > September 30, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ 1,403 $ 59,840 $ — Other commercial real estate 8,649 199 3,149 11,997 26,355 1,211,370 645 Total 8,649 199 3,149 11,997 27,758 1,271,210 645 Commercial and industrial loans: Total 1,152 455 1,064 2,671 29,101 461,556 214 Residential mortgages: 1-4 family 1,662 23 917 2,602 11,654 574,442 38 Construction — — — — — 5,404 — Total 1,662 23 917 2,602 11,654 579,846 38 Consumer loans: Home equity 472 78 760 1,310 559 115,265 22 Auto and other 155 34 258 447 245 52,309 — Total 627 112 1,018 1,757 804 167,574 22 Total $ 12,090 $ 789 $ 6,148 $ 19,027 $ 69,317 $ 2,480,186 $ 919 Acquired Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Acquired Total Loans Past Due > December 31, 2018 Commercial real estate: — Construction $ — $ — $ — $ — $ — $ 25,220 $ — Other commercial real estate 2,603 1,127 4,183 7,913 11,994 786,290 1,652 Total 2,603 1,127 4,183 7,913 11,994 811,510 1,652 Commercial and industrial loans: Total 217 147 1,515 1,879 29,539 466,508 144 Residential mortgages: 1-4 family 1,382 144 918 2,444 4,888 238,952 75 Construction — — — — — 174 — Total 1,382 144 918 2,444 4,888 239,126 75 Consumer loans: Home equity 290 148 751 1,189 553 86,719 — Auto and other 193 62 547 802 314 72,646 96 Total 483 210 1,298 1,991 867 159,365 96 Total $ 4,685 $ 1,628 $ 7,914 $ 14,227 $ 47,288 $ 1,676,509 $ 1,967 The following is summary information pertaining to non-accrual loans at September 30, 2019 and December 31, 2018: September 30, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ — $ — $ — $ — $ — $ — Other commercial real estate 13,326 2,504 15,830 17,840 2,531 20,371 Total 13,326 2,504 15,830 17,840 2,531 20,371 Commercial and industrial loans: Total 11,374 850 12,224 4,632 1,371 6,003 Residential mortgages: 1-4 family 2,183 879 3,062 1,374 843 2,217 Construction — — — — — — Total 2,183 879 3,062 1,374 843 2,217 Consumer loans: Home equity 1,265 738 2,003 933 751 1,684 Auto and other 2,930 258 3,188 1,699 451 2,150 Total 4,195 996 5,191 2,632 1,202 3,834 Total non-accrual loans $ 31,078 $ 5,229 $ 36,307 $ 26,478 $ 5,947 $ 32,425 Loans evaluated for impairment as of September 30, 2019 and December 31, 2018 were as follows: Business Activities Loans (In thousands) Commercial Commercial and Residential Consumer Total September 30, 2019 Loans receivable: Balance at end of period Individually evaluated for impairment $ 18,009 $ 9,370 $ 2,685 $ 642 $ 30,706 Collectively evaluated for impairment 2,739,242 1,374,160 2,256,126 838,221 7,207,749 Total $ 2,757,251 $ 1,383,530 $ 2,258,811 $ 838,863 $ 7,238,455 Business Activities Loans (In thousands) Commercial Commercial and Residential Consumer Total December 31, 2018 Loans receivable: Balance at end of year Individually evaluated for impairment $ 23,345 $ 2,825 $ 2,089 $ 342 $ 28,601 Collectively evaluated for impairment 2,565,366 1,510,713 2,325,209 936,855 7,338,143 Total $ 2,588,711 $ 1,513,538 $ 2,327,298 $ 937,197 $ 7,366,744 Acquired Loans (In thousands) Commercial Commercial and Residential Consumer Total September 30, 2019 Loans receivable: Balance at end of Period Individually evaluated for impairment $ 2,813 $ 336 $ 375 $ 516 $ 4,040 Purchased credit-impaired loans 27,758 29,101 11,654 804 69,317 Collectively evaluated for impairment 1,240,639 432,119 567,817 166,254 2,406,829 Total $ 1,271,210 $ 461,556 $ 579,846 $ 167,574 $ 2,480,186 Acquired Loans (In thousands) Commercial Commercial and Residential Consumer Total December 31, 2018 Loans receivable: Balance at end of year Individually evaluated for impairment $ 3,980 $ 763 $ 362 $ 646 $ 5,751 Purchased credit-impaired loans 11,994 29,539 4,888 867 47,288 Collectively evaluated for impairment 795,536 436,206 233,876 157,852 1,623,470 Total $ 811,510 $ 466,508 $ 239,126 $ 159,365 $ 1,676,509 The following is a summary of impaired loans at September 30, 2019 and December 31, 2018: Business Activities Loans September 30, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate $ 17,542 $ 32,064 $ — Commercial and industrial loans 5,002 10,151 — Residential mortgages - 1-4 family 376 439 — Consumer - home equity 34 239 — Consumer - other — — — With an allowance recorded: Other commercial real estate $ 487 $ 502 $ 7 Commercial and industrial loans 4,314 6,671 88 Residential mortgages - 1-4 family 2,341 2,633 109 Consumer - home equity 604 616 43 Consumer - other 10 10 1 Total Commercial real estate $ 18,029 $ 32,566 $ 7 Commercial and industrial loans 9,316 16,822 88 Residential mortgages 2,717 3,072 109 Consumer 648 865 44 Total impaired loans $ 30,710 $ 53,325 $ 248 (1) The Recorded Investment represents the face amount of the loan increased or decreased by applicable accrued interest, net deferred loan fees and costs, and unamortized premium or discount, and reflects direct charge-offs. These amounts are components of total loans and other assets on the Consolidated Balance Sheet. (2) The Unpaid Principal Balance represents the customer's legal obligation to the Company. Business Activities Loans December 31, 2018 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 22,606 $ 31,038 $ — Commercial and industrial loans 1,584 2,566 — Residential mortgages - 1-4 family 443 441 — Consumer - home equity 230 242 — Consumer - other — — — With an allowance recorded: Other commercial real estate loans $ 666 $ 670 $ 9 Commercial and industrial loans 1,251 1,235 49 Residential mortgages - 1-4 family 1,663 1,779 128 Consumer - home equity 100 106 10 Consumer - other 13 13 1 Total Commercial real estate $ 23,272 $ 31,708 $ 9 Commercial and industrial loans 2,835 3,801 49 Residential mortgages 2,106 2,220 128 Consumer 343 361 11 Total impaired loans $ 28,556 $ 38,090 $ 197 (1) The Recorded Investment represents the face amount of the loan increased or decreased by applicable accrued interest, net deferred loan fees and costs, and unamortized premium or discount, and reflects direct charge-offs. This amount is a component of total loans on the Consolidated Balance Sheet. (2) The Unpaid Principal Balance represents the customer's legal obligation to the Company. Acquired Loans September 30, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 1,453 $ 4,254 $ — Commercial and industrial loans 307 500 — Residential mortgages - 1-4 family 293 294 — Consumer - home equity 426 846 — Consumer - other — — — With an allowance recorded: Other commercial real estate loans $ 1,360 $ 1,372 $ 113 Commercial and industrial loans 28 30 1 Residential mortgages - 1-4 family 86 111 8 Consumer - home equity 50 50 1 Consumer - other 40 38 5 Total x Commercial real estate $ 2,813 $ 5,626 $ 113 Commercial and industrial loans 335 530 1 Residential mortgages 379 405 8 Consumer 516 934 6 Total impaired loans $ 4,043 $ 7,495 $ 128 (1) The Recorded Investment represents the face amount of the loan increased or decreased by applicable accrued interest, net deferred loan fees and costs, and unamortized premium or discount, and reflects direct charge-offs. This amount is a component of total loans on the Consolidated Balance Sheet. (2) The Unpaid Principal Balance represents the customer's legal obligation to the Company. Acquired Loans December 31, 2018 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 3,055 $ 5,959 $ — Other commercial and industrial loans 538 644 — Residential mortgages - 1-4 family 271 324 — Consumer - home equity 399 1,053 — Consumer - other — 11 — With an allowance recorded: Other commercial real estate loans $ 925 $ 947 $ 9 Commercial and industrial loans 228 232 4 Residential mortgages - 1-4 family 94 117 36 Consumer - home equity 205 196 41 Consumer - other 43 40 7 Total Commercial real estate $ 3,980 $ 6,906 $ 9 Commercial and industrial loans 766 876 4 Residential mortgages 365 441 36 Consumer 647 1,300 48 Total impaired loans $ 5,758 $ 9,523 $ 97 (1) The Recorded Investment represents the face amount of the loan increased or decreased by applicable accrued interest, net deferred loan fees and costs, and unamortized premium or discount, and reflects direct charge-offs. This amount is a component of total loans on the Consolidated Balance Sheet. (2) The Unpaid Principal Balance represents the customer's legal obligation to the Company. The following is a summary of the average recorded investment and interest income recognized on impaired loans as of September 30, 2019 and 2018: Business Activities Loans Nine Months Ended Nine Months Ended (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 20,232 $ 289 $ 24,277 $ 277 Commercial and industrial loans 2,842 395 2,451 343 Residential mortgages - 1-4 family 380 15 683 22 Consumer - home equity 164 2 797 10 Consumer - other — — — — With an allowance recorded: Other commercial real estate loans $ 545 $ 17 $ 1,415 $ 60 Commercial and industrial loans 3,053 453 1,395 111 Residential mortgages - 1-4 family 2,035 101 1,401 47 Consumer - home equity 267 24 44 2 Consumer - other 11 — 15 1 Total Commercial real estate $ 20,777 $ 306 $ 25,692 $ 337 Commercial and industrial loans 5,895 848 3,846 454 Residential mortgages 2,415 116 2,084 69 Consumer loans 442 26 856 13 Total impaired loans $ 29,529 $ 1,296 $ 32,478 $ 873 Acquired Loans Nine Months Ended September 30, 2019 Nine Months Ended September 30, 2018 (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 1,295 $ 55 $ 4,354 $ 212 Commercial and industrial loans 465 40 552 40 Residential mortgages - 1-4 family 224 10 572 6 Consumer - home equity 441 13 766 2 Consumer - other — — 16 1 With an allowance recorded: Other commercial real estate loans $ 1,073 $ 46 $ 1,225 $ 53 Commercial and industrial loans 29 2 202 32 Residential mortgages - 1-4 family 89 5 80 6 Consumer - home equity 50 2 148 4 Consumer - other 42 1 — — Total Commercial real estate $ 2,368 $ 101 $ 5,579 $ 265 Commercial and industrial loans 494 42 754 72 Residential mortgages 313 15 652 12 Consumer loans 533 16 930 7 Total impaired loans $ 3,708 $ 174 $ 7,915 $ 356 Troubled Debt Restructuring Loans The Company’s loan portfolio also includes certain loans that have been modified in a Troubled Debt Restructuring (TDR), where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from the Company’s loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance, or other actions. Certain TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally six months . TDRs are evaluated individually for impairment and may result in a specific allowance amount allocated to an individual loan. The following tables include the recorded investment and number of modifications identified during the three and nine ended September 30, 2019 and September 30, 2018. The table includes the recorded investment in the loans prior to a modification and also the recorded investment in the loans after the loans were restructured. The modifications for the three and nine months ended September 30, 2019 and 2018 were attributable to interest rate concessions, principal concessions, maturity date extensions, modified payment terms, reamortization, and accelerated maturity. Three Months Ended September 30, 2019 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate — $ — $ — Commercial and industrial — — — Residential - 1-4 Family 2 65 65 Total 2 $ 65 $ 65 Nine Months Ended September 30, 2019 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate 2 $ 145 $ 145 Commercial and industrial 3 475 472 Residential - 1-4 Family 2 65 65 Total 7 $ 685 $ 682 Three Months Ended September 30, 2018 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial and industrial — $ — $ — Residential - 1-4 Family 1 30 30 Total 1 $ 30 $ 30 Nine Months Ended September 30, 2018 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings 19 Commercial and industrial 4 1,995 1,924 Residential - 1-4 Family 2 148 148 Total 6 $ 2,143 $ 2,072 The following table discloses the recorded investments and numbers of modifications for TDRs where a concession has been made within the previous 12 months, that then defaulted in the respective reporting period. For the three and nine months ended September 30, 2019, there was one loan that were restructured that had subsequently defaulted during the period. There were no TDRs that defaulted within 12 months of modifications during the three months ended September 30, 2018. For the nine months ended September 30, 2018, there were two loans that were restructured that had subsequently defaulted during the period. Modifications that Subsequently Defaulted Three Months Ended September 30, 2019 (Dollars in thousands) Number of Contracts Recorded Investment Troubled Debt Restructurings Commercial real estate — — Commercial and industrial 1 195 Modifications that Subsequently Defaulted Nine Months Ended September 30, 2019 (Dollars in thousands) Number of Contracts Recorded Investment Troubled Debt Restructurings Commercial real estate — — Commercial and industrial 1 195 Modifications that Subsequently Defaulted Three Months Ended September 30, 2018 (Dollars in thousands) Number of Contracts Recorded Investment Troubled Debt Restructurings Commercial real estate — — Commercial and industrial — — Modifications that Subsequently Defaulted Nine Months Ended September 30, 2018 (Dollars in thousands) Number of Contracts Recorded Investment Troubled Debt Restructurings Commercial real estate 1 5,992 Commercial and industrial 1 1,065 The following table presents the Company’s TDR activity for the three and nine months ended September 30, 2019 and 2018: Three Months Ended September 30, (In thousands) 2019 2018 Balance at beginning of the period $ 25,089 $ 33,507 Principal payments (3,876 ) (3,567 ) TDR status change (1) — — Other reductions (2) (1,548 ) (1,206 ) Newly identified TDRs 65 30 Balance at end of the period $ 19,730 $ 28,764 Nine Months Ended September 30, (In thousands) 2019 2018 Balance at beginning of the period $ 27,415 $ 41,990 Principal payments (5,664 ) (6,718 ) TDR status change (1) — — Other reductions (2) (2,703 ) (8,580 ) Newly identified TDRs 682 2,072 Balance at end of the period $ 19,730 $ 28,764 _________________________________ (1) TDR status change classification represents TDR loans with a specified interest rate equal to or greater than the rate that the Company was willing to accept at the time of the restructuring for a new loan with comparable risk and the loan was on current payment status and not impaired based on the terms specified by the restructuring agreement. (2) Other reductions classification consists of transfer to other real estate owned, payoffs, charge-offs, and advances to loans. The evaluation of certain loans individually for specific impairment includes loans that were previously classified as TDRs or continue to be classified as TDRs. As of September 30, 2019 , the Company maintained no foreclosed residential real estate property. Residential mortgage loans collateralized by real estate property that were in the process of foreclosure as of September 30, 2019 and December 31, 2018 totaled $7.1 million and $3.2 million , respectively. As of December 31, 2018, the Company maintained no

LOAN LOSS ALLOWANCE

LOAN LOSS ALLOWANCE	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
LOAN LOSS ALLOWANCE	LOAN LOSS ALLOWANCE Activity in the allowance for loan losses for the three and nine months ended September 30, 2019 and 2018 was as follows: At or for the three months ended September 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 22,408 $ 18,849 $ 8,834 $ 5,341 $ 55,432 Charged-off loans 3,061 19,315 95 760 23,231 Recoveries on charged-off loans 286 469 — 53 808 Provision/(releases) for loan losses 3,815 18,929 23 420 23,187 Balance at end of period $ 23,448 $ 18,932 $ 8,762 $ 5,054 $ 56,196 At or for the nine months ended September 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 21,732 $ 16,504 $ 10,535 $ 7,368 $ 56,139 Charged-off loans 5,019 22,171 343 2,536 30,069 Recoveries on charged-off loans 561 895 58 186 1,700 Provision/(releases) for loan losses 6,174 23,704 (1,488 ) 36 28,426 Balance at end of period $ 23,448 $ 18,932 $ 8,762 $ 5,054 $ 56,196 At or for the three months ended September 30, 2018 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 19,151 $ 14,655 $ 9,430 $ 7,078 $ 50,314 Charged-off loans 2,964 174 35 728 3,901 Recoveries on charged-off loans 1 60 108 47 216 Provision/(releases) for loan losses 4,406 493 587 919 6,405 Balance at end of period $ 20,594 $ 15,034 $ 10,090 $ 7,316 $ 53,034 At or for the nine months ended September 30, 2018 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 16,843 $ 13,850 $ 9,420 $ 5,807 $ 45,920 Charged-off loans 4,462 2,770 62 2,505 9,799 Recoveries on charged-off loans 50 551 114 256 971 Provision/(releases) for loan losses 8,163 3,403 618 3,758 15,942 Balance at end of period $ 20,594 $ 15,034 $ 10,090 $ 7,316 $ 53,034 At or for the three months ended September 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 4,562 $ 870 $ 882 $ 410 $ 6,724 Charged-off loans 20 89 97 87 293 Recoveries on charged-off loans 36 85 52 17 190 Provision/(releases) for loan losses (648 ) 20 7 34 (587 ) Balance at end of period $ 3,930 $ 886 $ 844 $ 374 $ 6,034 At or for the nine months ended September 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,153 $ 1,064 $ 630 $ 483 $ 5,330 Charged-off loans 824 460 201 515 2,000 Recoveries on charged-off loans 536 311 112 103 1,062 Provision/(releases) for loan losses 1,065 (29 ) 303 303 1,642 Balance at end of period $ 3,930 $ 886 $ 844 $ 374 $ 6,034 At or for the three months ended September 30, 2018 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,382 $ 1,127 $ 618 $ 484 $ 5,611 Charged-off loans 119 181 25 245 570 Recoveries on charged-off loans 9 104 14 32 159 Provision/(releases) for loan losses 115 (41 ) (15 ) 164 223 Balance at end of period $ 3,387 $ 1,009 $ 592 $ 435 $ 5,423 At or for the nine months ended September 30, 2018 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,856 $ 1,125 $ 598 $ 335 $ 5,914 Charged-off loans 1,831 336 1,078 938 4,183 Recoveries on charged-off loans 274 199 50 376 899 Provision/(releases) for loan losses 1,088 21 1,022 662 2,793 Balance at end of period $ 3,387 $ 1,009 $ 592 $ 435 $ 5,423 The following tables present a summary of the allowance for loan losses as of September 30, 2019 and December 31, 2018: At September 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 7 88 109 44 248 Collectively evaluated for impairment 23,441 18,844 8,653 5,010 55,948 Total $ 23,448 $ 18,932 $ 8,762 $ 5,054 $ 56,196 At December 31, 2018 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 9 49 128 11 197 Collectively evaluated for impairment 21,723 16,455 10,407 7,357 55,942 Total 21,732 16,504 10,535 7,368 56,139 At September 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 113 1 8 6 128 Collectively evaluated for impairment 3,817 885 836 368 5,906 Total $ 3,930 $ 886 $ 844 $ 374 $ 6,034 At December 31, 2018 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 9 4 36 48 97 Collectively evaluated for impairment 3,144 1,060 594 435 5,233 Total 3,153 1,064 630 483 5,330 Credit Quality Information Business Activities Loans Credit Quality Analysis The Company monitors the credit quality of its portfolio by using internal risk ratings that are based on regulatory guidance. Loans that are given a Pass rating are not considered a problem credit. Loans that are classified as Special Mention loans are considered to have potential weaknesses and are evaluated closely by management. Substandard and non-accruing loans are loans for which a definitive weakness has been identified and which may make full collection of contractual cash flows questionable. Doubtful loans are those with identified weaknesses that make full collection of contractual cash flows, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. For commercial credits, the Company assigns an internal risk rating at origination and reviews the rating annually, semiannually or quarterly depending on the risk rating. The rating is also reassessed at any point in time when management becomes aware of information that may affect the borrower’s ability to fulfill their obligations. The Company risk rates its residential mortgages, including 1-4 family and residential construction loans, based on a three rating system: Pass, Special Mention, and Substandard. Loans that are current within 59 days are rated Pass. Residential mortgages that are 60 - 89 days delinquent are rated Special Mention. Loans delinquent for 90 days or greater are rated Substandard and generally placed on non-accrual status. Home equity loans are risk rated based on the same rating system as the Company’s residential mortgages. Ratings for other consumer loans, including auto loans, are based on a two rating system. Loans that are current within 119 days are rated Performing while loans delinquent for 120 days or more are rated Non-performing. Other consumer loans are placed on non-accrual at such time as they become Non-performing. Acquired Loans Credit Quality Analysis Upon acquiring a loan portfolio, the Company's internal loan review function assigns risk ratings to the acquired loans, utilizing the same methodology as it does with business activities loans. This may differ from the risk rating policy of the predecessor bank. Loans which are rated Substandard or worse according to the rating process outlined below are deemed to be credit impaired loans accounted for under ASC 310-30, regardless of whether they are classified as performing or non-performing. The Bank utilizes an eleven grade internal loan rating system for each of its acquired commercial real estate, construction and commercial loans as outlined in the Credit Quality Information section of this Note. The ratings system is similar to loans originated through business activities. The Company subjects loans that do not meet the ASC 310-30 criteria to ASC 450-20 ( Loss Contingencies ) by collectively evaluating these loans for an allowance for loan loss. The Company applies a methodology similar to the methodology prescribed for business activities loans, which includes the application of environmental factors to each category of loans. The methodology to collectively evaluate the acquired loans outside the scope of ASC 310-30 includes the application of a number of environmental factors that reflect management’s best estimate of the level of incremental credit losses that might be recognized given current conditions. This is reviewed as part of the allowance for loan loss adequacy analysis. As the loan portfolio matures and environmental factors change, the loan portfolio will be reassessed each quarter to determine an appropriate reserve allowance. Additionally, the Company considers the need for a reserve for acquired loans accounted for outside of the scope of ASC 310-30 under ASC 310-20. At acquisition date, the Bank determined a fair value mark with credit and interest rate components. Under the Company’s model, the impairment evaluation process involves comparing the carrying value of acquired loans, including the entire unamortized premium or discount, to the calculated reserve allowance. If necessary, the Company books a reserve to account for shortfalls identified through this calculation. Fair value marks are not bifurcated when evaluating for impairment. A decrease in the expected cash flows in subsequent periods requires the establishment of an allowance for loan losses at that time for ASC 310-30 loans. At September 30, 2019 , the allowance for loan losses related to acquired loans under ASC 310-30 and ASC 310-20 was $6.0 million using the above mentioned criteria. The following tables present the Company’s loans by risk rating at September 30, 2019 and December 31, 2018: Business Activities Loans Commercial Real Estate Credit Risk Profile by Creditworthiness Category Construction Real Estate Total commercial real estate (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Grade: Pass $ 307,085 $ 327,792 $ 2,361,054 $ 2,198,129 $ 2,668,139 $ 2,525,921 Special mention 8,613 — 24,201 9,805 32,814 9,805 Substandard 4,794 — 51,504 52,985 56,298 52,985 Total $ 320,492 $ 327,792 $ 2,436,759 $ 2,260,919 $ 2,757,251 $ 2,588,711 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total commercial and industrial loans (In thousands) September 30, 2019 December 31, 2018 Grade: Pass $ 1,292,835 $ 1,469,139 Special mention 61,327 14,279 Substandard 27,007 29,176 Doubtful 2,361 944 Total $ 1,383,530 $ 1,513,538 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Grade: Pass $ 2,244,878 $ 2,314,657 $ 9,653 $ 9,582 $ 2,254,531 $ 2,324,239 Special mention 1,225 1,619 — — 1,225 1,619 Substandard 3,055 1,440 — — 3,055 1,440 Total $ 2,249,158 $ 2,317,716 $ 9,653 $ 9,582 $ 2,258,811 $ 2,327,298 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Performing $ 277,518 $ 289,028 $ 557,150 $ 645,537 $ 834,668 $ 934,565 Nonperforming 1,265 933 2,930 1,699 4,195 2,632 Total $ 278,783 $ 289,961 $ 560,080 $ 647,236 $ 838,863 $ 937,197 Acquired Loans Commercial Real Estate Credit Risk Profile by Creditworthiness Category Construction Real Estate Total commercial real estate (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Grade: Pass $ 57,734 $ 24,519 $ 1,151,715 $ 743,684 $ 1,209,449 $ 768,203 Special mention — — 5,487 9,086 5,487 9,086 Substandard 2,106 701 54,168 33,520 56,274 34,221 Total $ 59,840 $ 25,220 $ 1,211,370 $ 786,290 $ 1,271,210 $ 811,510 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total commercial and industrial loans (In thousands) September 30, 2019 December 31, 2018 Grade: Pass $ 434,018 $ 439,602 Special mention 6,415 11,374 Substandard 21,123 15,532 Total $ 461,556 $ 466,508 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Grade: Pass $ 569,636 $ 235,173 $ 5,404 $ 174 $ 575,040 $ 235,347 Special mention 76 144 — — 76 144 Substandard 4,730 3,635 — — 4,730 3,635 Total $ 574,442 $ 238,952 $ 5,404 $ 174 $ 579,846 $ 239,126 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Performing $ 114,527 $ 85,968 $ 52,051 $ 72,195 $ 166,578 $ 158,163 Nonperforming 738 751 258 451 996 1,202 Total $ 115,265 $ 86,719 $ 52,309 $ 72,646 $ 167,574 $ 159,365 The following table summarizes information about total loans rated Special Mention or lower as of September 30, 2019 and December 31, 2018. The table below includes consumer loans that are special mention and substandard accruing that are classified in the above table as performing based on payment activity. September 30, 2019 December 31, 2018 (In thousands) Business Acquired Loans Total Business Acquired Loans Total Non-Accrual $ 31,078 $ 5,229 $ 36,307 $ 26,478 $ 5,947 $ 32,425 Substandard Accruing 61,952 77,991 139,943 60,698 48,792 109,490 Total Classified 93,030 83,220 176,250 87,176 54,739 141,915 Special Mention 96,206 12,201 108,407 26,333 20,833 47,166 Total Criticized $ 189,236 $ 95,421 $ 284,657 $ 113,509 $ 75,572 $ 189,081

DEPOSITS

DEPOSITS	9 Months Ended
	Sep. 30, 2019
Deposits [Abstract]
DEPOSITS	DEPOSITS A summary of time deposits is as follows: (In thousands) September 30, December 31, Time less than $100,000 $ 951,233 $ 719,689 Time $100,000 through $250,000 2,335,990 2,060,500 Time more than $250,000 670,498 507,528 Total time deposits $ 3,957,721 $ 3,287,717 Included in total deposits are brokered deposits of $1.5 billion and $1.4 billion at September 30, 2019 and December 31, 2018 , respectively. Included in total deposits are reciprocal deposits of $89.1 million and $84.4 million at September 30, 2019 and December 31, 2018 , respectively.

BORROWED FUNDS

BORROWED FUNDS	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
BORROWED FUNDS	BORROWED FUNDS Borrowed funds at September 30, 2019 and December 31, 2018 are summarized, as follows: September 30, 2019 December 31, 2018 Weighted Weighted Average Average (Dollars in thousands) Principal Rate Principal Rate Short-term borrowings: Advances from the FHLB $ 300,000 2.25 % $ 1,118,832 2.58 % Total short-term borrowings: 300,000 2.25 1,118,832 2.58 Long-term borrowings: Advances from the FHLB and other borrowings 604,149 2.14 309,466 2.17 Subordinated borrowings 74,188 7.00 74,054 7.00 Junior subordinated borrowing - Trust I 15,464 4.00 15,464 4.50 Junior subordinated borrowing - Trust II 7,339 3.82 — — Total long-term borrowings: 701,140 2.72 398,984 3.16 Total $ 1,001,140 2.58 % $ 1,517,816 2.73 % Short-term debt includes Federal Home Loan Bank (“FHLB”) advances with an original maturity of less than one year and a short-term line-of-credit drawdown through a correspondent bank. The Bank also maintains a $3.0 million secured line of credit with the FHLB that bears a daily adjustable rate calculated by the FHLB. There was no outstanding balance on the FHLB line of credit for the periods ended September 30, 2019 and December 31, 2018 . The Bank is approved to borrow on a short-term basis from the Federal Reserve Bank of Boston as a non-member bank. The Bank has pledged certain loans and securities to the Federal Reserve Bank to support this arrangement. No borrowings with the Federal Reserve Bank took place for the periods ended September 30, 2019 and December 31, 2018 . Long-term FHLB advances consist of advances with an original maturity of more than one year and are subject to prepayment penalties. The advances outstanding at September 30, 2019 include callable advances totaling $10 million and amortizing advances totaling $4.3 million . The advances outstanding at December 31, 2018 include no callable advances and amortizing advances totaling $1.7 million . All FHLB borrowings, including the line of credit, are secured by a blanket security agreement on certain qualified collateral, principally all residential first mortgage loans and certain securities. A summary of maturities of FHLB advances as of September 30, 2019 is as follows: September 30, 2019 Weighted Average (In thousands, except rates) Principal Rate Fixed rate advances maturing: 2019 $ 190,329 2.29 % 2020 420,301 2.25 2021 231,476 2.00 2022 42,560 1.98 2023 and beyond 19,483 2.12 Total FHLB advances $ 904,149 2.18 % The Company did not have variable-rate FHLB advances for the periods ended September 30, 2019 and December 31, 2018 . In September 2012, the Company issued fifteen year subordinated notes in the amount of $75.0 million at a discount of 1.15% . The interest rate is fixed at 6.875% for the first ten years . After ten years , the notes become callable and convert to an interest rate of three-month LIBOR rate plus 5.113% . The subordinated note includes reduction to the note principal balance of $368 thousand and $461 thousand for unamortized debt issuance costs as of September 30, 2019 and December 31 2018, respectively. The Company holds 100% of the common stock of Berkshire Hills Capital Trust I (“Trust I”) which is included in other assets with a cost of $0.5 million . The sole asset of Trust I is $15.5 million of the Company’s junior subordinated debentures due in 2035. These debentures bear interest at a variable rate equal to LIBOR plus 1.85% and had a rate of 4.00% and 4.50% at September 30, 2019 and December 31, 2018 , respectively. The Company has the right to defer payments of interest for up to five years on the debentures at any time, or from time to time, with certain limitations, including a restriction on the payment of dividends to shareholders while such interest payments on the debentures have been deferred. The Company has not exercised this right to defer payments. The Company has the right to redeem the debentures at par value. Trust I is considered a variable interest entity for which the Company is not the primary beneficiary. Accordingly, Trust I is not consolidated into the Company’s financial statements. The Company holds 100% of the common stock of SI Capital Trust II (“Trust II”) which is included in other assets with a cost of $0.2 million . The sole asset of Trust II is $8.2 million of the Company’s junior subordinated debentures due in 2036. These debentures bear interest at a variable rate equal to LIBOR plus 1.70% and had a rate of 3.82% at September 30, 2019 . The Company has the right to defer payments of interest for up to five years on the debentures at any time, or from time to time, with certain limitations, including a restriction on the payment of dividends to shareholders while such interest payments on the debentures have been deferred. The Company has not exercised this right to defer payments. The Company has the right to redeem the debentures at par value. Trust II is considered a variable interest entity for which the Company is not the primary beneficiary. Accordingly, Trust II is not consolidated into the Company’s financial statements.

DERIVATIVE INSTRUMENTS AND HEDG

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES	DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES As of September 30, 2019 , the Company held derivatives with a total notional amount of $4.4 billion . The Company had economic hedges and non-hedging derivatives totaling $4.0 billion and $0.4 billion , respectively, which are not designated as hedges for accounting purposes with changes in fair value recorded directly through earnings. Economic hedges included interest rate swaps totaling $3.2 billion , risk participation agreements with dealer banks of $0.3 billion , and $0.5 billion in forward commitment contracts. Forward sale commitments and commitments to lend are included in discontinued operations. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. As part of the Company’s risk management strategy, the Company enters into interest rate swap agreements to mitigate the interest rate risk inherent in certain of the Company’s assets and liabilities. Interest rate swap agreements involve the risk of dealing with both Bank customers and institutional derivative counterparties and their ability to meet contractual terms. The agreements are entered into with counterparties that meet established credit standards and contain master netting and collateral provisions protecting the at-risk party. The derivatives program is overseen by the Risk Management and Capital Committee of the Company’s Board of Directors. Based on adherence to the Company’s credit standards and the presence of the netting and collateral provisions, the Company believes that the credit risk inherent in these contracts was not significant at September 30, 2019 . The Company pledged collateral to derivative counterparties in the form of cash totaling $102.8 million and securities with an amortized cost of $26.4 million and a fair value of $26.5 million as of September 30, 2019 . The Company does not typically require its commercial customers to post cash or securities as collateral on its program of back-to-back economic hedges. However certain language is written into the International Swaps Dealers Association, Inc. (“ISDA”) and loan documents where, in default situations, the Bank is allowed to access collateral supporting the loan relationship to recover any losses suffered on the derivative asset or liability. The Company may need to post additional collateral in the future in proportion to potential increases in unrealized loss positions. Information about derivative assets and liabilities at September 30, 2019 , follows: Weighted Weighted Average Rate Estimated Notional Average Contract Fair Value Amount Maturity Received pay rate Asset (Liability) (In thousands) (In years) (In thousands) Economic hedges: Interest rate swap on tax advantaged economic development bond $ 9,569 10.2 2.40 % 5.09 % $ (1,703 ) Interest rate swaps on loans with commercial loan customers 1,610,888 6.6 4.42 % 3.51 % 101,218 Reverse interest rate swaps on loans with commercial loan customers 1,610,888 6.6 3.51 % 4.42 % (103,884 ) Risk participation agreements with dealer banks 292,645 7.9 411 Forward sale commitments (1) 515,203 0.2 (54 ) Total economic hedges 4,039,193 (4,012 ) Non-hedging derivatives: Commitments to lend (1) 406,271 0.2 7,084 Total non-hedging derivatives 406,271 7,084 Total $ 4,445,464 $ 3,072 (1) Includes the impact of discontinued operations. Information about derivative assets and liabilities at December 31, 2018 , follows: Weighted Weighted Average Rate Estimated Notional Average Contract Fair Value Amount Maturity Received pay rate Asset (Liability) (In thousands) (In years) (In thousands) Economic hedges: Interest rate swap on tax advantaged economic development bond $ 10,090 10.9 2.72 % 5.09 % $ (1,240 ) Interest rate swaps on loans with commercial loan customers 1,346,894 6.7 4.53 % 4.04 % 11,443 Reverse interest rate swaps on loans with commercial loan customers 1,346,894 6.7 4.04 % 4.53 % (11,953 ) Risk participation agreements with dealer banks 243,806 5.7 237 Forward sale commitments (1) 190,807 0.2 (734 ) Total economic hedges 3,138,491 (2,247 ) Non-hedging derivatives: Commitments to lend (1) 165,079 0.2 3,927 Total non-hedging derivatives 165,079 3,927 Total $ 3,303,570 $ 1,680 (1) Includes the impact of discontinued operations. Economic hedges As of September 30, 2019 , the Company has an interest rate swap with a $9.6 million notional amount to swap out the fixed rate of interest on an economic development bond bearing a fixed rate of 5.09% , currently within the Company’s trading portfolio under the fair value option, in exchange for a LIBOR-based floating rate. The intent of the economic hedge is to improve the Company’s asset sensitivity to changing interest rates in anticipation of favorable average floating rates of interest over the 21 -year life of the bond. The fair value changes of the economic development bond are mostly offset by fair value changes of the related interest rate swap. The Company also offers certain derivative products directly to qualified commercial borrowers. The Company economically hedges derivative transactions executed with commercial borrowers by entering into mirror-image, offsetting derivatives with third-party financial institutions. The transaction allows the Company’s customer to convert a variable-rate loan to a fixed rate loan. Because the Company acts as an intermediary for its customer, changes in the fair value of the underlying derivative contracts mostly offset each other in earnings. Credit valuation loss adjustments arising from the difference in credit worthiness of the commercial loan and financial institution counterparties totaled $2.2 million as of September 30, 2019 . The interest income and expense on these mirror image swaps exactly offset each other. The Company has risk participation agreements with dealer banks. Risk participation agreements occur when the Company participates on a loan and a swap where another bank is the lead. The Company gets paid a fee to take on the risk associated with having to make the lead bank whole on Berkshire’s portion of the pro-rated swap should the borrower default. Changes in fair value are recorded in current period earnings. The Company utilizes forward sale commitments to hedge interest rate risk and the associated effects on the fair value of interest rate lock commitments and loans originated for sale. The forward sale commitments are accounted for as derivatives with changes in fair value recorded in current period earnings. Forward sale commitments are included in discontinued operations. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. The Company uses the following types of forward sale commitments contracts: • Best efforts loan sales, • Mandatory delivery loan sales, and • To Be Announced (“TBA”) mortgage-backed securities sales. A best efforts contract refers to a loan sale agreement where the Company commits to deliver an individual mortgage loan of a specified principal amount and quality to an investor if the loan to the underlying borrower closes. The Company may enter into a best efforts contract once the price is known, which is shortly after the potential borrower’s interest rate is locked. A mandatory delivery contract is a loan sale agreement where the Company commits to deliver a certain principal amount of mortgage loans to an investor at a specified price on or before a specified date. Generally, the Company may enter into mandatory delivery contracts shortly after the loan closes with a customer. The Company may sell TBA mortgage-backed securities to hedge the changes in fair value of interest rate lock commitments and held for sale loans, which do not have corresponding best efforts or mandatory delivery contracts. These security sales transactions are closed once mandatory contracts are written. On the closing date the price of the security is locked-in, and the sale is paired-off with a purchase of the same security. Settlement of the security purchase/sale transaction is done with cash on a net-basis. Non-hedging derivatives The Company enters into interest rate lock commitments (“IRLCs”), or commitments to lend, for residential mortgage loans, which commit the Company to lend funds to a potential borrower at a specific interest rate and within a specified period of time. IRLCs that relate to the origination of mortgage loans that will be held for sale are considered derivative financial instruments under applicable accounting guidance. Outstanding IRLCs expose the Company to the risk that the price of the mortgage loans underlying the commitments may decline due to increases in mortgage interest rates from inception of the rate lock to the funding of the loan. The IRLCs are free-standing derivatives which are carried at fair value with changes recorded in discontinued operations in the Company’s consolidated statements of income. Changes in the fair value of IRLCs subsequent to inception are based on changes in the fair value of the underlying loan resulting from the fulfillment of the commitment and changes in the probability that the loan will fund within the terms of the commitment, which is affected primarily by changes in interest rates and the passage of time. Commitments to lend are included in discontinued operations. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. Amounts included in the Consolidated Statements of Income related to economic hedges and non-hedging derivatives were as follows: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2019 2018 2019 2018 Economic hedges Interest rate swap on industrial revenue bond: Unrealized (loss)/gain recognized in other non-interest income $ (120 ) $ 142 $ (463 ) $ 616 Interest rate swaps on loans with commercial loan customers: Unrealized (loss)/gain recognized in other non-interest income 26,975 (4,721 ) 91,931 (24,660 ) (Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income (872 ) 60 (2,156 ) 391 Reverse interest rate swaps on loans with commercial loan customers: Unrealized gain/(loss) recognized in other non-interest income (26,975 ) 4,721 (91,931 ) 24,660 Risk participation agreements: Unrealized gain recognized in other non-interest income 68 67 174 90 Forward commitments: Unrealized (loss) recognized in discontinued operations 1,090 587 680 (980 ) Realized gain in discontinued operations (3,343 ) 115 (9,142 ) 5,114 Non-hedging derivatives Commitments to lend Unrealized gain recognized in discontinued operations $ (1,921 ) $ 4,924 $ 3,157 $ 18,740 Realized gain in discontinued operations 20,476 3,345 46,189 6,439 Assets and Liabilities Subject to Enforceable Master Netting Arrangements Interest Rate Swap Agreements (“Swap Agreements”) The Company enters into swap agreements to facilitate the risk management strategies for commercial banking customers. The Company mitigates this risk by entering into equal and offsetting swap agreements with highly rated third party financial institutions. The swap agreements are free-standing derivatives and are recorded at fair value in the Company’s consolidated statements of condition. The Company is party to master netting arrangements with its financial institution counterparties; however, the Company does not offset assets and liabilities under these arrangements for financial statement presentation purposes. The master netting arrangements provide for a single net settlement of all swap agreements, as well as collateral, in the event of default on, or termination of, any one contract. Collateral generally in the form of marketable securities is received or posted by the counterparty with net liability positions, respectively, in accordance with contract thresholds. The Company had net asset positions with its financial institution counterparties totaling $0.8 million and $5.9 million as of September 30, 2019 and December 31, 2018 , respectively. The Company had net asset positions with its commercial banking counterparties totaling $101.3 million and $21.2 million as of September 30, 2019 and December 31, 2018 , respectively. The Company had net liability positions with its financial institution counterparties totaling $106.0 million and $18.8 million as of September 30, 2019 and December 31, 2018 , respectively. The Company had net liability positions with its commercial banking counterparties totaling $0.1 million and $9.7 million as of September 30, 2019 and December 31, 2018 . The collateral posted by the Company that covered liability positions was $129.3 million and $25.4 million as of September 30, 2019 and December 31, 2018 , respectively. The following table presents the assets and liabilities subject to an enforceable master netting arrangement as of September 30, 2019 and December 31, 2018 : Offsetting of Financial Assets and Derivative Assets Gross Amounts of Gross Amounts Offset in the Net Amounts of Assets Presented in the Gross Amounts Not Offset in the Statements of Condition Recognized Statements of Statements of Financial Cash (In thousands) Assets Condition Condition Instruments Collateral Received Net Amount September 30, 2019 Interest Rate Swap Agreements: Institutional counterparties $ 805 $ (18 ) $ 787 $ — $ — $ 787 Commercial counterparties 101,330 — 101,330 — — 101,330 Total $ 102,135 $ (18 ) $ 102,117 $ — $ — $ 102,117 Offsetting of Financial Liabilities and Derivative Liabilities Gross Amounts of Gross Amounts Offset in the Net Amounts of Liabilities Presented in the Gross Amounts Not Offset in the Statements of Condition Recognized Statements of Statements of Financial Cash (In thousands) Liabilities Condition Condition Instruments Collateral Pledged Net Amount September 30, 2019 Interest Rate Swap Agreements: Institutional counterparties $ (106,232 ) $ 270 $ (105,962 ) $ 26,507 $ 102,837 $ 23,382 Commercial counterparties (112 ) — (112 ) — — (112 ) Total $ (106,344 ) $ 270 $ (106,074 ) $ 26,507 $ 102,837 $ 23,270 Offsetting of Financial Assets and Derivative Assets Gross Amounts of Gross Amounts Offset in the Net Amounts of Assets Presented in the Gross Amounts Not Offset in the Statements of Condition Recognized Statements of Statements of Financial Cash (In thousands) Assets Condition Condition Instruments Collateral Received Net Amount December 31, 2018 Interest Rate Swap Agreements: Institutional counterparties $ 9,485 $ (3,592 ) $ 5,893 $ — $ — $ 5,893 Commercial counterparties 21,345 (157 ) 21,188 — — 21,188 Total $ 30,830 $ (3,749 ) $ 27,081 $ — $ — $ 27,081 Offsetting of Financial Liabilities and Derivative Liabilities Gross Amounts of Gross Amounts Offset in the Net Amounts of Liabilities Presented in the Gross Amounts Not Offset in the Statements of Condition Recognized Statements of Statements of Financial Cash (In thousands) Liabilities Condition Condition Instruments Collateral Pledged Net Amount December 31, 2018 Interest Rate Swap Agreements: Institutional counterparties $ (19,949 ) $ 1,101 $ (18,848 ) $ — $ 25,412 $ 6,564 Commercial counterparties (9,932 ) 187 (9,745 ) — — (9,745 ) Total $ (29,881 ) $ 1,288 $ (28,593 ) $ — $ 25,412 $ (3,181 )

LEASES

LEASES	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
LEASES	LEASES A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. On January 1, 2019, the Company adopted ASU No. 2016-02, “Leases (Topic 842)” and all subsequent ASUs that modified Topic 842. For the Company, Topic 842 primarily affected the accounting treatment for operating lease agreements in which the Company is the lessee. See Note 1 to the Consolidated Financial Statements regarding transition guidance related to the new standard. Substantially all of the leases in which the Company is the lessee are comprised of real estate property for branches, ATM locations, and office space. Most of the Company’s leases are classified as operating leases, and therefore, were previously not recognized on the Company’s Consolidated Balance Sheets. With the adoption of Topic 842, operating lease agreements are required to be recognized on the Consolidated Balance Sheets as a right-of-use (“ROU”) asset and a corresponding lease liability. The Company’s finance leases (previously referred to as a capital lease) was previously required to be recorded on the Company’s Consolidated Balance Sheets. As these leases were previously required to be recorded on the Company’s Consolidated Balance Sheets, Topic 842 did not materially impact the accounting for the leases. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. In determining the present value of lease payments, the Company utilized the implicit lease rate when readily determinable. As most of the Company’s leases do not provide an implicit rate, the Company used our incremental borrowing rate based on the information available at commencement date. The incremental borrowing rate is the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term in an amount equal to the lease payments in a similar economic environment. The weighted average discount rate used to discount operating lease liabilities and finance lease liabilities at September 30, 2019 was 3.36% and 5.00% , respectively. The Company made a policy election to exclude the recognition requirements of Topic 842 to all classes of leases with original terms of 12 months or less. Instead, the short-term lease payments are recognized in profit or loss on a straight-line basis over the lease term. At September 30, 2019 lease expiration dates ranged from 1 month to 21 years . The weighted average remaining lease term for operating and finance leases at September 30, 2019 was 10.4 years and 15.1 years , respectively. The following table represents the Consolidated Balance Sheets classification of the Company’s ROU assets and lease liabilities: (In thousands) September 30, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets $ 78,824 Finance lease right-of-use assets Premises and equipment, net 7,850 Total Lease Right-of-Use Assets $ 86,674 Lease Liabilities Operating lease liabilities (1) Other liabilities $ 83,256 Finance lease liabilities Other liabilities 11,090 Total Lease Liabilities $ 94,346 (1) Includes assets and liabilities classified as discontinued operations. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, non-lease components and other non-components, such as common area maintenance charges, real estate taxes, and insurance are not included in the measurement of the lease liability since they are generally able to be segregated. The Company does not have any material sub-lease agreements. Lease expense for operating leases for the three and nine months ended September 30, 2019 was $3.7 million and $10.7 million , respectively. Variable lease components, such as consumer price index adjustments, are expensed as incurred and not included in ROU assets and operating lease liabilities. Supplemental cash flow information related to leases was as follows: Three Months Ended Nine Months Ended (In thousands) September 30, 2019 September 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) $ 3,829 $ 10,984 Operating cash flows from finance leases 159 478 Financing cash flows from finance leases 119 315 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 1,149 88,790 Finance leases — — (1) Includes cash flows related to discontinued operations. The following table presents a maturity analysis of the Company’s lease liability by lease classification at September 30, 2019: (In thousands) Operating Leases Finance Leases 2019 $ 3,624 $ 336 2020 13,700 1,031 2021 12,425 1,031 2022 11,207 1,031 2023 9,244 1,037 Thereafter 48,701 11,296 Total undiscounted lease payments (1) 98,901 15,762 Less amounts representing interest (1) (15,645 ) (4,672 ) Lease liability (1) $ 83,256 $ 11,090
LEASES	LEASES A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. On January 1, 2019, the Company adopted ASU No. 2016-02, “Leases (Topic 842)” and all subsequent ASUs that modified Topic 842. For the Company, Topic 842 primarily affected the accounting treatment for operating lease agreements in which the Company is the lessee. See Note 1 to the Consolidated Financial Statements regarding transition guidance related to the new standard. Substantially all of the leases in which the Company is the lessee are comprised of real estate property for branches, ATM locations, and office space. Most of the Company’s leases are classified as operating leases, and therefore, were previously not recognized on the Company’s Consolidated Balance Sheets. With the adoption of Topic 842, operating lease agreements are required to be recognized on the Consolidated Balance Sheets as a right-of-use (“ROU”) asset and a corresponding lease liability. The Company’s finance leases (previously referred to as a capital lease) was previously required to be recorded on the Company’s Consolidated Balance Sheets. As these leases were previously required to be recorded on the Company’s Consolidated Balance Sheets, Topic 842 did not materially impact the accounting for the leases. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. In determining the present value of lease payments, the Company utilized the implicit lease rate when readily determinable. As most of the Company’s leases do not provide an implicit rate, the Company used our incremental borrowing rate based on the information available at commencement date. The incremental borrowing rate is the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term in an amount equal to the lease payments in a similar economic environment. The weighted average discount rate used to discount operating lease liabilities and finance lease liabilities at September 30, 2019 was 3.36% and 5.00% , respectively. The Company made a policy election to exclude the recognition requirements of Topic 842 to all classes of leases with original terms of 12 months or less. Instead, the short-term lease payments are recognized in profit or loss on a straight-line basis over the lease term. At September 30, 2019 lease expiration dates ranged from 1 month to 21 years . The weighted average remaining lease term for operating and finance leases at September 30, 2019 was 10.4 years and 15.1 years , respectively. The following table represents the Consolidated Balance Sheets classification of the Company’s ROU assets and lease liabilities: (In thousands) September 30, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets $ 78,824 Finance lease right-of-use assets Premises and equipment, net 7,850 Total Lease Right-of-Use Assets $ 86,674 Lease Liabilities Operating lease liabilities (1) Other liabilities $ 83,256 Finance lease liabilities Other liabilities 11,090 Total Lease Liabilities $ 94,346 (1) Includes assets and liabilities classified as discontinued operations. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, non-lease components and other non-components, such as common area maintenance charges, real estate taxes, and insurance are not included in the measurement of the lease liability since they are generally able to be segregated. The Company does not have any material sub-lease agreements. Lease expense for operating leases for the three and nine months ended September 30, 2019 was $3.7 million and $10.7 million , respectively. Variable lease components, such as consumer price index adjustments, are expensed as incurred and not included in ROU assets and operating lease liabilities. Supplemental cash flow information related to leases was as follows: Three Months Ended Nine Months Ended (In thousands) September 30, 2019 September 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) $ 3,829 $ 10,984 Operating cash flows from finance leases 159 478 Financing cash flows from finance leases 119 315 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 1,149 88,790 Finance leases — — (1) Includes cash flows related to discontinued operations. The following table presents a maturity analysis of the Company’s lease liability by lease classification at September 30, 2019: (In thousands) Operating Leases Finance Leases 2019 $ 3,624 $ 336 2020 13,700 1,031 2021 12,425 1,031 2022 11,207 1,031 2023 9,244 1,037 Thereafter 48,701 11,296 Total undiscounted lease payments (1) 98,901 15,762 Less amounts representing interest (1) (15,645 ) (4,672 ) Lease liability (1) $ 83,256 $ 11,090

CAPITAL RATIOS AND SHAREHOLDERS

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY	9 Months Ended
	Sep. 30, 2019
Stockholders' Equity Note [Abstract]
CAPITAL RATIOS AND SHAREHOLDERS' EQUITY	CAPITAL RATIOS AND SHAREHOLDERS’ EQUITY The actual and required capital ratios were as follows: September 30, Regulatory December 31, Regulatory Company (consolidated) Total capital to risk weighted assets 13.0 % N/A 13.0 % N/A Common equity tier 1 capital to risk weighted assets 11.5 N/A 11.4 N/A Tier 1 capital to risk weighted assets 11.7 N/A 11.6 N/A Tier 1 capital to average assets 9.2 N/A 9.0 N/A Bank Total capital to risk weighted assets 12.2 % 8.0 % 12.2 % 8.0 % Common equity tier 1 capital to risk weighted assets 11.6 4.5 11.6 4.5 Tier 1 capital to risk weighted assets 11.6 6.0 11.6 6.0 Tier 1 capital to average assets 9.1 4.0 9.0 4.0 At each date shown, the Bank met the conditions to be classified as “well capitalized” under the relevant regulatory framework. To be categorized as well capitalized, an institution must maintain minimum total risk-based, Tier 1 risk-based, and Tier 1 leverage ratios as set forth in the table above. Effective January 1, 2015, the Company and the Bank became subject to the Basel III rule that requires the Company and the Bank to assess their Common equity Tier 1 capital to risk weighted assets. The Bank's Common equity Tier 1 capital to risk weighted assets exceeds the minimum to be well capitalized. In addition, the final capital rules added a requirement to maintain a minimum conservation buffer, composed of Common equity Tier 1 capital, of 2.5% of risk-weighted assets, to be phased in over three years and applied to the Common equity Tier 1 risk-based capital ratio, the Tier 1 risk-based capital ratio, and the Total risk-based capital ratio. As of January 1, 2019, banking organizations must maintain a minimum Common equity Tier 1 risk-based capital ratio of 7.0% , a minimum Tier 1 risk-based capital ratio of 8.5% , and a minimum Total risk-based capital ratio of 10.5% . The final capital rules impose restrictions on capital distributions and certain discretionary cash bonus payments if the minimum capital conservation buffer is not met. At September 30, 2019 , the capital levels of both the Company and the Bank exceeded all regulatory capital requirements and the Bank's regulatory capital ratios were above the minimum levels required to be considered well capitalized for regulatory purposes. The capital levels of both the Company and the Bank at September 30, 2019 also exceeded the minimum capital requirements including the currently applicable capital conservation buffer of 2.5% . Accumulated other comprehensive income/(loss) Components of accumulated other comprehensive income/(loss) is as follows: (In thousands) September 30, December 31, Other accumulated comprehensive income, before tax: Net unrealized holding gain/(loss) on AFS securities $ 24,210 $ (15,267 ) Net unrealized holding (loss) on pension plans (2,753 ) (2,753 ) Income taxes related to items of accumulated other comprehensive income: Net unrealized tax (expense)/benefit on AFS securities (6,313 ) 3,814 Net unrealized tax benefit on pension plans 736 736 Accumulated other comprehensive income/(loss) $ 15,880 $ (13,470 ) The following table presents the components of other comprehensive income for the three and nine months ended September 30, 2019 and 2018 : (In thousands) Before Tax Tax Effect Net of Tax Three Months Ended September 30 , 2019 Net unrealized holding gain on AFS securities: x Net unrealized gains arising during the period $ 6,159 $ (1,576 ) $ 4,583 Less: reclassification adjustment for gains realized in net income 5 (1 ) 4 Net unrealized holding gain on AFS securities 6,154 (1,575 ) 4,579 Other comprehensive income $ 6,154 $ (1,575 ) $ 4,579 Three Months Ended September 30 , 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (9,923 ) $ 2,546 $ (7,377 ) Less: reclassification adjustment for gains realized in net income 6 (2 ) 4 Net unrealized holding (loss) on AFS securities (9,929 ) 2,548 (7,381 ) Other comprehensive (loss) $ (9,929 ) $ 2,548 $ (7,381 ) (In thousands) Before Tax Tax Effect Net of Tax Nine Months Ended September 30, 2019 Net unrealized holding gain on AFS securities: x Net unrealized gains arising during the period $ 39,486 $ (10,129 ) $ 29,357 Less: reclassification adjustment for gains realized in net income 9 (2 ) 7 Net unrealized holding gain on AFS securities 39,477 (10,127 ) 29,350 Other comprehensive income $ 39,477 $ (10,127 ) $ 29,350 Nine Months Ended September 30, 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (36,925 ) $ 9,478 $ (27,447 ) Less: reclassification adjustment for gains realized in net income 6 (2 ) 4 Net unrealized holding (loss) on AFS securities (36,931 ) 9,480 (27,451 ) Other comprehensive (loss) $ (36,931 ) $ 9,480 $ (27,451 ) Less: reclassification related to adoption of ASU 2016-01 8,379 (2,126 ) 6,253 Less: reclassification related to adoption of ASU 2018-01 — (896 ) (896 ) Total change to accumulated other comprehensive (loss) 45,310 12,502 (32,808 ) The following table presents the changes in each component of accumulated other comprehensive income/(loss), for the three and nine ended September 30, 2019 and 2018 : (In thousands) Net unrealized holding loss on AFS Securities Net unrealized holding loss on pension plans Total Three Months Ended September 30, 2019 Balance at Beginning of Period $ 13,318 $ (2,017 ) $ 11,301 Other comprehensive income before reclassifications 4,583 — 4,583 Less: amounts reclassified from accumulated other comprehensive income (loss) 4 — 4 Total other comprehensive income 4,579 — 4,579 Balance at End of Period $ 17,897 $ (2,017 ) $ 15,880 Three Months Ended September 30, 2018 Balance at Beginning of Period $ (19,021 ) $ (2,245 ) $ (21,266 ) Other comprehensive (loss) before reclassifications (7,377 ) — (7,377 ) Less: amounts reclassified from accumulated other comprehensive income (loss) 4 — 4 Total other comprehensive (loss) (7,381 ) — (7,381 ) Balance at End of Period $ (26,402 ) $ (2,245 ) $ (28,647 ) Nine Months Ended September 30, 2019 Balance at Beginning of Period $ (11,453 ) $ (2,017 ) $ (13,470 ) Other comprehensive income before reclassifications 29,357 — 29,357 Less: amounts reclassified from accumulated other comprehensive income 7 — 7 Total other comprehensive income 29,350 — 29,350 Balance at End of Period $ 17,897 $ (2,017 ) $ 15,880 Nine Months Ended September 30, 2018 Balance at Beginning of Period $ 6,008 $ (1,847 ) $ 4,161 Other comprehensive (loss) before reclassifications (27,447 ) — (27,447 ) Less: amounts reclassified from accumulated other comprehensive income 4 — 4 Total other comprehensive (loss) (27,451 ) — (27,451 ) Less: amounts reclassified from accumulated other comprehensive income (loss) related to adoption of ASU 2016-01 and ASU 2018-02 4,959 398 5,357 Balance at End of Period $ (26,402 ) $ (2,245 ) $ (28,647 ) The following table presents the amounts reclassified out of each component of accumulated other comprehensive income/(loss) for the three and nine ended September 30, 2019 and 2018 : Affected Line Item in the Three Months Ended September 30, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ 5 $ 6 Non-interest income (1 ) (2 ) Tax expense 4 4 Net of tax Total reclassifications for the period $ 4 $ 4 Net of tax Affected Line Item in the Nine Months Ended September 30, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ 9 $ 6 Non-interest income (2 ) (2 ) Tax expense 7 4 Net of tax Total reclassifications for the period $ 7 $ 4 Net of tax

EARNINGS PER SHARE

EARNINGS PER SHARE	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Earnings per share have been computed based on the following (average diluted shares outstanding are calculated using the treasury stock method): Three Months Ended September 30, Nine Months Ended September 30, (In thousands, except per share data) 2019 2018 2019 2018 Income from continuing operations $ 20,659 $ 33,069 $ 68,885 $ 92,151 Income from discontinued operations 1,957 (842 ) 2,814 (645 ) Net income $ 22,616 $ 32,227 $ 71,699 $ 91,506 Average number of common shares issued 51,903 46,212 49,068 46,212 Less: average number of treasury shares 1,089 790 855 816 Less: average number of unvested stock award shares 435 435 410 430 Plus: average participating preferred shares 1,043 1,043 1,043 1,043 Average number of basic shares outstanding 51,422 46,030 48,846 46,009 Plus: dilutive effect of unvested stock award shares 87 202 109 186 Plus: dilutive effect of stock options outstanding 36 31 32 31 Average number of diluted shares outstanding 51,545 46,263 48,987 46,226 Basic earnings per common share: Continuing operations $ 0.40 $ 0.72 $ 1.41 $ 2.00 Discontinued operations 0.04 (0.02 ) 0.06 (0.01 ) Total $ 0.44 $ 0.70 $ 1.47 $ 1.99 Diluted earnings per common share: Continuing operations $ 0.40 $ 0.72 $ 1.40 $ 1.99 Discontinued operations 0.04 (0.02 ) 0.06 (0.01 ) Total $ 0.44 $ 0.70 $ 1.46 $ 1.98 For the nine months ended September 30, 2019 , 296 thousand shares of restricted stock and 60 thousand options were anti-dilutive and therefore excluded from the earnings per share calculations. For the nine months ended September 30, 2018 , 245 thousand shares of restricted stock and 25 thousand options were anti-dilutive and therefore excluded from the earnings per share calculations.

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS	9 Months Ended
	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
STOCK-BASED COMPENSATION PLANS	STOCK-BASED COMPENSATION PLANS A combined summary of activity in the Company’s stock award and stock option plans for the nine months ended September 30, 2019 is presented in the following table: Non-Vested Stock Awards Outstanding Stock Options Outstanding (Shares in thousands) Number of Shares Weighted-Average Grant Date Fair Value Number of Shares Weighted-Average Exercise Price December 31, 2018 371 $ 33.63 31 $ 10.82 Granted 284 29.51 — — Acquired — — 133 23.99 Stock options exercised — — (6 ) 11.40 Stock awards vested (130 ) 31.76 — — Forfeited (59 ) 33.18 — — Expired — — — — September 30, 2019 466 $ 32.54 158 $ 21.02 Exercisable options at September 30, 2019 158 $ 21.02 During the three and nine months ended September 30, 2019, proceeds from stock option exercises totaled $55 thousand and $69 thousand , respectively. There were no options exercised during the three months ended September 30, 2018. During the nine months ended September 30, 2018 proceeds from stock option exercises totaled $102 thousand . During the three and nine months ended September 30, 2019 , there were 3 thousand and 130 thousand shares issued in connection with vested stock awards, respectively. During the three and nine months ended September 30, 2018, there were 3 thousand and 153 thousand shares issued in connection with vested stock awards, respectively. All of these shares were issued from available treasury stock. Stock-based compensation expense totaled $1.5 million and $1.5 million during the three months ended September 30, 2019 and 2018. Stock-based compensation expense totaled $3.5 million and $4.3 million during the nine months ended September 30, 2019 and 2018 , respectively. Stock-based compensation expense is recognized over the requisite service period for all awards.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS A description of the valuation methodologies used for assets and liabilities measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. These valuation methodologies were applied to all of the Company’s financial assets and financial liabilities that are carried at fair value, including assets classified as discontinued operations on the consolidated balance sheets. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. Recurring Fair Value Measurements The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2019 and December 31, 2018 , segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. September 30, 2019 Level 1 Level 2 Level 3 Total (In thousands) Inputs Inputs Inputs Fair Value Trading security $ — $ — $ 11,145 $ 11,145 Securities available for sale: Municipal bonds and obligations — 116,781 — 116,781 Agency collateralized mortgage obligations — 843,852 — 843,852 Agency residential mortgage-backed securities — 174,216 — 174,216 Agency commercial mortgage-backed securities — 60,971 — 60,971 Corporate bonds — 129,021 — 129,021 Other bonds and obligations — 44,763 — 44,763 Marketable equity securities 58,539 1,057 — 59,596 Loans held for sale (1) — 215,314 — 215,314 Derivative assets (1) — 101,442 7,084 108,526 Capitalized servicing rights (1) — — 16,413 16,413 Derivative liabilities (1) 54 105,400 — 105,454 (1) Includes assets and liabilities classified as discontinued operations. December 31, 2018 Level 1 Level 2 Level 3 Total (In thousands) Inputs Inputs Inputs Fair Value Trading security $ — $ — $ 11,212 $ 11,212 Securities available for sale: Municipal bonds and obligations — 111,207 — 111,207 Agency collateralized mortgage obligations — 930,884 — 930,884 Agency residential mortgage-backed securities — 170,321 — 170,321 Agency commercial mortgage-backed securities — 58,925 — 58,925 Corporate bonds — 119,956 — 119,956 Other bonds and obligations — 8,354 — 8,354 Marketable equity securities 56,074 564 — 56,638 Loans held for sale (1) — 96,233 — 96,233 Derivative assets (1) — 31,727 3,927 35,654 Capitalized servicing rights (1) — — 11,485 11,485 Derivative liabilities (1) 734 33,239 — 33,973 (1) Includes assets and liabilities classified as discontinued operations. There were no transfers between levels during the three months ended September 30, 2019 . Trading Security at Fair Value. The Company holds one security designated as a trading security. It is a tax-advantaged economic development bond issued to the Company by a local nonprofit which provides wellness and health programs. The determination of the fair value for this security is determined based on a discounted cash flow methodology. Certain inputs to the fair value calculation are unobservable and there is little to no market activity in the security; therefore, the security meets the definition of a Level 3 security. The discount rate used in the valuation of the security is sensitive to movements in the 3-month LIBOR rate. Securities Available for Sale and Marketable Equity Securities . Marketable equity securities classified as Level 1 consist of publicly-traded equity securities for which the fair values can be obtained through quoted market prices in active exchange markets. AFS and marketable equity securities classified as Level 2 include most of the Company’s debt securities. The pricing on Level 2 was primarily sourced from third party pricing services, overseen by management, and is based on models that consider standard input factors such as dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information, and the bond’s terms and condition, among other things. Loans Held for Sale. The Company elected the fair value option for all loans held for sale (HFS) originated for sale on or after May 1, 2012. Loans HFS are classified as Level 2 as the fair value is based on input factors such as quoted prices for similar loans in active markets. Aggregate Fair Value September 30, 2019 Aggregate Aggregate Less Aggregate (In thousands) Fair Value Unpaid Principal Unpaid Principal Loans held for sale - continuing operations $ 6,109 $ 6,024 $ 85 Loans held for sale - discontinued operations 209,205 204,335 4,870 Total loans held for sale $ 215,314 $ 210,359 $ 4,955 Aggregate Fair Value December 31, 2018 Aggregate Aggregate Less Aggregate (In thousands) Fair Value Unpaid Principal Unpaid Principal Loans held for sale - continuing operations $ 2,183 $ 2,140 $ 43 Loans held for sale - discontinued operations 94,050 90,879 3,171 Total loans held for sale $ 96,233 $ 93,019 $ 3,214 The changes in fair value of loans held for sale for the three months ended September 30, 2019 , were losses of $49 thousand from continuing operations and $0.9 million from discontinued operations. The changes in fair value of loans held for sale for the nine months ended September 30, 2019, were gains of $42 thousand from continuing operations and $1.7 million from discontinued operations. There were no changes in fair value of loans held for sale from continuing operations for the three months ended September 30, 2018. The changes in fair value of loans held for sale from discontinued operations for the three months ended September 30, 2018 were losses of $1.4 million . The changes in fair value of loans held for sale for the nine months ended September 30, 2018, were losses of $20 thousand from continuing operations and $2.5 million from discontinued operations. During the three months ended September 30, 2019, originations of loans held for sale from continuing operations totaled $22.6 million and sales of loans originated for sale from continuing operations totaled $25.1 million . During the nine months ended September 30, 2019, originations of loans held for sale from continuing operations totaled $51.5 million and sales of loans originated for sale from continuing operations totaled $48.6 million . During the three months ended September 30, 2018, originations of loans held for sale from continuing operations totaled $15.5 million and sales of loans originated for sale from continuing operations totaled $16.1 million . During the nine months ended September 30, 2018, originations of loans held for sale from continuing operations totaled $40.8 million and sales of loans originated for sale from continuing operations totaled $39.2 million . Interest Rate Swaps. The valuation of the Company’s interest rate swaps is obtained from a third-party pricing service and is determined using a discounted cash flow analysis on the expected cash flows of each derivative. The pricing analysis is based on observable inputs for the contractual terms of the derivatives, including the period to maturity and interest rate curves. The Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings. Although the Company has determined that the majority of the inputs used to value its interest rate derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of September 30, 2019 , the Company assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Company determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy. Commitments to Lend. The Company enters into commitments to lend for residential mortgage loans intended for sale, which commit the Company to lend funds to a potential borrower at a specific interest rate and within a specified period of time. The estimated fair value of commitments to originate residential mortgage loans for sale is based on quoted prices for similar loans in active markets. However, this value is adjusted by a factor which considers the likelihood that the loan in a lock position will ultimately close, and by the non-refundable costs of originating the loan. The closing ratio is derived from the Bank’s internal data and is adjusted using significant management judgment. The costs to originate are primarily based on the Company’s internal commission rates that are not observable. As such, these commitments are classified as Level 3 measurements. Commitments to lend are included in discontinued operations. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. Forward Sale Commitments . The Company utilizes forward sale commitments as economic hedges against potential changes in the values of the commitments to lend and loans originated for sale. To Be Announced (“TBA”) mortgage-backed securities forward commitment sales are used as the hedging instrument, are classified as Level 1, and consist of publicly-traded debt securities for which identical fair values can be obtained through quoted market prices in active exchange markets. The fair values of the Company’s best efforts and mandatory delivery loan sale commitments are determined similarly to the commitments to lend using quoted prices in the market place that are observable. However, costs to originate and closing ratios included in the calculation are internally generated and are based on management’s judgment and prior experience, which are considered factors that are not observable. As such, best efforts and mandatory forward commitments are classified as Level 3 measurements. Forward sale commitments are included in discontinued operations. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. Capitalized Servicing Rights. The Company accounts for certain capitalized servicing rights at fair value in its Consolidated Financial Statements, as the Company is permitted to elect the fair value option for each specific instrument. A loan servicing right asset represents the amount by which the present value of the estimated future net cash flows to be received from servicing loans exceed adequate compensation for performing the servicing. The fair value of servicing rights is estimated using a present value cash flow model. The most important assumptions used in the valuation model are the anticipated rate of the loan prepayments and discount rates. Although some assumptions in determining fair value are based on standards used by market participants, some are based on unobservable inputs and therefore are classified in Level 3 of the valuation hierarchy. Capitalized servicing rights held at fair value are included in discontinued operations on the consolidated balance sheet. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. The table below presents the changes in Level 3 assets and liabilities that were measured at fair value on a recurring basis for the three and nine months ended September 30, 2019 and 2018 . Assets (Liabilities) Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended September 30, 2019 June 30, 2019 $ 11,210 $ 9,005 $ — $ 11,206 Unrealized gain/(loss), net recognized in other non-interest income 109 — — — Unrealized gain/(loss), net recognized in discontinued operations — 19,915 — (1,381 ) Paydown of trading security (174 ) — — — Transfers to held for sale loans — (21,836 ) — — Additions to servicing rights — — — 6,588 September 30, 2019 $ 11,145 $ 7,084 $ — $ 16,413 Nine Months Ended September 30, 2019 December 31, 2018 $ 11,212 $ 3,927 $ — $ 11,485 Unrealized gain, net recognized in other non-interest income 454 — — — Unrealized gain/(loss), net recognized in discontinued operations — 48,254 — (4,495 ) Paydown of trading security (521 ) — — — Transfers to held for sale loans — (45,097 ) — — Additions to servicing rights — — — 9,423 September 30, 2019 $ 11,145 $ 7,084 $ — $ 16,413 Unrealized gains relating to instruments still held at September 30, 2019 $ 1,576 $ 7,084 $ — — Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended September 30, 2018 June 30, 2018 $ 11,483 $ 7,285 $ — $ 7,839 Unrealized gain/(loss), net recognized in other non-interest income (138 ) — — — Unrealized gain/(loss), net recognized in discontinued operations — 13,351 — 7 Paydown of trading security (166 ) — — — Transfers to held for sale loans — (15,712 ) — — Additions to servicing rights — — — 2,509 September 30, 2018 $ 11,179 $ 4,924 $ — $ 10,355 Nine Months Ended September 30, 2018 December 31, 2017 $ 12,277 $ 5,259 $ 19 $ 3,834 Unrealized gain, net recognized in other non-interest income (603 ) — — — Unrealized gain/(loss), net recognized in discontinued operations — 22,639 (19 ) 811 Paydown of trading security (495 ) — — — Transfers to held for sale loans — (22,974 ) — Additions to servicing rights — — — 5,710 September 30, 2018 $ 11,179 $ 4,924 $ — $ 10,355 Unrealized gains relating to instruments still held at September 30, 2018 $ 919 $ 4,924 $ — — (1) Classified as assets from discontinued operations on the consolidated balance sheets. Quantitative information about the significant unobservable inputs within Level 3 recurring assets and liabilities is as follows: Fair Value Significant Unobservable Input (In thousands) September 30, 2019 Valuation Techniques Unobservable Inputs Value Assets (Liabilities) Trading security $ 11,145 Discounted Cash Flow Discount Rate 1.96 % Commitments to lend (1) 7,084 Historical Trend Closing Ratio 77.53 % Pricing Model Origination Costs, per loan $ 3,137 Capitalized servicing rights (1) 16,413 Discounted cash flow Constant Prepayment Rate (CPR) 11.80 % Discount Rate 10.00 % Total $ 34,642 (1) Classified as assets from discontinued operations on the consolidated balance sheets. Fair Value Significant Unobservable Input (In thousands) December 31, 2018 Valuation Techniques Unobservable Inputs Value Assets (Liabilities) Trading security $ 11,212 Discounted Cash Flow Discount Rate 3.07 % Commitments to lend (1) 3,927 Historical Trend Closing Ratio 82.36 % Pricing Model Origination Costs, per loan $ 3,063 Capitalized servicing rights (1) 11,485 Discounted Cash Flow Constant Prepayment Rate (CPR) 9.30 % Discount Rate 10.00 % Total $ 26,624 (1) Classified as assets from discontinued operations on the consolidated balance sheets. Non-Recurring Fair Value Measurements The Company is required, on a non-recurring basis, to adjust the carrying value or provide valuation allowances for certain assets using fair value measurements in accordance with GAAP. The following is a summary of applicable non-recurring fair value measurements. There are no liabilities measured at fair value on a non-recurring basis. September 30, 2019 December 31, 2018 Fair Value Measurement Date as of September 30, 2019 Level 3 Level 3 Level 3 (In thousands) Inputs Inputs Inputs Assets Impaired loans $ 8,943 $ 4,892 September 2019 Capitalized servicing rights 14,354 11,891 September 2019 Total $ 23,297 $ 16,783 Quantitative information about the significant unobservable inputs within Level 3 non-recurring assets is as follows: Fair Value (In thousands) September 30, 2019 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets Impaired Loans $ 8,943 Fair Value of Collateral Discounted Cash Flow - Loss Severity 15.90% to 72.16% (1.30%) Appraised Value $3.9 to $1,550 ($761.4) Capitalized servicing rights 14,354 Discounted Cash Flow Constant Prepayment Rate (CPR) 9.28% to 13.55% (12.06%) Discount Rate 10.00% to 13.50% (11.69%) Total $ 23,297 (a) Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individuals properties. Fair Value (In thousands) December 31, 2018 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets Impaired Loans $ 4,892 Fair Value of Collateral Discounted Cash Flow - loss severity 0.00% to 51.16% (6.75%) Appraised Value $0.3 to $877 ($363) Capitalized servicing rights 11,891 Discounted Cash Flow Constant Prepayment Rate (CPR) 7.74% to 11.29% (9.74%) Discount Rate 10.00% to 14.13% (11.99%) Total $ 16,783 (a) Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individuals properties. There were no Level 1 or Level 2 nonrecurring fair value measurements for the periods ended September 30, 2019 and December 31, 2018 . Impaired loans. Loans are generally not recorded at fair value on a recurring basis. Periodically, the Company records non-recurring adjustments to the carrying value of loans based on fair value measurements for partial charge-offs of the uncollectible portions of those loans. Non-recurring adjustments can also include certain impairment amounts for collateral-dependent loans calculated when establishing the allowance for credit losses. Such amounts are generally based on the fair value of the underlying collateral supporting the loan and, as a result, the carrying value of the loan less the calculated valuation amount does not necessarily represent the fair value of the loan. Real estate collateral is typically valued using appraisals or other indications of value based on recent comparable sales of similar properties or assumptions generally observable in the marketplace. However, the choice of observable data is subject to significant judgment, and there are often adjustments based on judgment in order to make observable data comparable and to consider the impact of time, the condition of properties, interest rates, and other market factors on current values. Additionally, commercial real estate appraisals frequently involve discounting of projected cash flows, which relies inherently on unobservable data. Therefore, nonrecurring fair value measurement adjustments that relate to real estate collateral have generally been classified as Level 3. Estimates of fair value for other collateral that supports commercial loans are generally based on assumptions not observable in the marketplace and therefore such valuations have been classified as Level 3. Capitalized loan servicing rights . A loan servicing right asset represents the amount by which the present value of the estimated future net cash flows to be received from servicing loans exceed adequate compensation for performing the servicing. The fair value of servicing rights is estimated using a present value cash flow model. The most important assumptions used in the valuation model are the anticipated rate of the loan prepayments and discount rates. Adjustments are only recorded when the discounted cash flows derived from the valuation model are less than the carrying value of the asset. Although some assumptions in determining fair value are based on standards used by market participants, some are based on unobservable inputs and therefore are classified in Level 3 of the valuation hierarchy. Summary of Estimated Fair Values of Financial Instruments The following tables summarize the estimated fair values (represents exit price), and related carrying amounts, of the Company’s financial instruments. Certain financial instruments and all non-financial instruments are excluded. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company. Certain assets and liabilities in the following disclosures include balances classified as discontinued operations. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. September 30, 2019 Carrying Fair (In thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 302,095 $ 302,095 $ 302,095 $ — $ — Trading security 11,145 11,145 — — 11,145 Marketable equity securities 59,596 59,596 58,539 1,057 — Securities available for sale 1,369,604 1,369,604 — 1,369,604 — Securities held to maturity 364,675 381,433 — 363,542 17,891 FHLB bank stock and restricted securities 56,049 N/A N/A N/A N/A Net loans 9,656,411 9,905,964 — — 9,905,964 Loans held for sale (1) 415,105 417,599 — 215,314 202,285 Accrued interest receivable 39,658 39,658 — 39,658 — Derivative assets (1) 108,526 108,526 — 101,442 7,084 Financial Liabilities Total deposits $ 10,423,318 $ 10,436,406 $ — $ 10,436,406 $ — Short-term debt 300,000 299,970 — 299,970 — Long-term Federal Home Loan Bank advances 604,149 604,540 — 604,540 — Subordinated borrowings 96,991 100,522 — 100,522 — Derivative liabilities (1) 105,454 105,454 54 105,400 — (1) Includes assets and liabilities classified as discontinued operations. December 31, 2018 Carrying Fair (In thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 183,189 $ 183,189 $ 183,189 $ — $ — Trading security 11,212 11,212 — — 11,212 Marketable equity securities 56,638 56,638 56,074 564 — Securities available for sale and other 1,399,647 1,399,647 — 1,399,647 — Securities held to maturity 373,763 371,224 — 353,182 18,042 FHLB bank stock and restricted securities 77,344 N/A N/A N/A N/A Net loans 8,981,784 9,026,442 — — 9,026,442 Loans held for sale (1) 96,233 96,233 — 96,233 — Accrued interest receivable 36,879 36,879 — 36,879 — Derivative assets (1) 35,654 35,654 — 31,727 3,927 Financial Liabilities Total deposits $ 8,982,381 $ 8,970,321 $ — $ 8,970,321 $ — Short-term debt 1,118,832 1,118,820 — 1,118,820 — Long-term Federal Home Loan Bank advances 309,466 308,336 — 308,336 — Subordinated borrowings 89,518 97,376 — 97,376 — Derivative liabilities (1) 33,973 33,973 734 33,239 — (1) Includes assets and liabilities classified as discontinued operations.

NET INTEREST INCOME AFTER PROVI

NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	9 Months Ended
	Sep. 30, 2019
Banking and Thrift, Interest [Abstract]
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES Presented below is net interest income after provision for loan losses for the three and nine months ended September 30, 2019 and 2018, respectively. Three Months Ended September 30, Nine Months Ended September 31, (In thousands) 2019 2018 2019 2018 Net interest income from continuing operations $ 96,871 $ 88,385 $ 273,925 $ 263,434 Provision for loan losses 22,600 6,628 30,068 18,735 Net interest income from continuing operations after provision for loan losses $ 74,271 $ 81,757 $ 243,857 $ 244,699

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	BASIS OF PRESENTATION The Consolidated Financial Statements (the “financial statements”) of Berkshire Hills Bancorp, Inc. and its subsidiaries (the “Company” or “Berkshire”) have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company is a Delaware corporation, headquartered in Boston, Massachusetts, and the holding company for Berkshire Bank (the “Bank”), a Massachusetts-chartered trust company headquartered in Pittsfield, Massachusetts, and Berkshire Insurance Group, Inc. These financial statements include the accounts of the Company, its wholly-owned subsidiaries and the Bank’s consolidated subsidiaries. In consolidation, all significant intercompany accounts and transactions are eliminated. The results of operations of companies or assets acquired are included only from the dates of acquisition. All material wholly-owned and majority-owned subsidiaries are consolidated unless GAAP requires otherwise. The Company has evaluated subsequent events for potential recognition and/or disclosure through the date these consolidated financial statements were issued. These interim financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X, and accordingly, certain information and footnote disclosures normally included in financial statements prepared according to GAAP have been omitted. The results for any interim period are not necessarily indicative of results for the full year. These consolidated financial statements should be read in conjunction with the audited financial statements and note disclosures Berkshire Hills Bancorp, Inc. previously filed with the Securities and Exchange Commission in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. In management’s opinion, all adjustment’s necessary for a fair statement are reflected in the interim periods presented.
Recently Adopted Accounting Principles and Future Application of Accounting Pronouncements	Recently Adopted Accounting Principles Effective January 1, 2019, the following new accounting guidance was adopted by the Company: • ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities; • ASU No. 2016-02, Leases (Topic 842)(additional information is disclosed in Note 11 - Leases of the Consolidated Financial Statements) In August 2017, the FASB issued ASU No. 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities.” The purpose of this updated guidance is to better align a company’s financial reporting for hedging activities with the economic objectives of those activities. ASU No. 2017-12 is effective for public business entities for fiscal years beginning after December 15, 2018, with early adoption, including adoption in an interim period, permitted. ASU 2017-12 requires a modified retrospective transition method in which the Company will recognize the cumulative effect of the change on the opening balance of each affected component of equity in the Consolidated Balance Sheets as of the date of adoption. In April 2019, the FASB issued ASU No. 2019-04 to clarify certain aspects of accounting for hedging activities addressed by ASU No. 2017-12, among other things (ASU No. 2019-04 amendments and pending adoption to FASB ASC Topics 326 and 825 are described in the section below). ASU No. 2017-12 became effective for the Company on January 1, 2019. The adoption was not material to the financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842)”. The pronouncement affects all entities that are participants to leasing agreements. From a lessee accounting perspective, the ASU requires a lessee to recognize assets and liabilities on the balance sheet for operating leases and changes many key definitions, including the definition of a lease. The ASU includes a short-term lease exception for leases with a term of twelve months or less, in which a lessee can make an accounting policy election not to recognize lease assets and lease liabilities. Lessees will continue to differentiate between finance leases (previously referred to as capital leases) and operating leases, using classification criteria that are substantially similar to the previous guidance. For lessees, the recognition, measurement, and presentation of expenses and cash flows arising from a lease have not significantly changed from previous GAAP. From a lessor accounting perspective, the guidance is largely unchanged, except for targeted improvements to align with new terminology under lessee accounting and with the updated revenue recognition guidance in Topic 606. For sale-leaseback transactions, for a sale to occur the transfer must meet the sale criteria under the new revenue standard, Topic 606. Entities will not be required to reassess transactions previously accounted under then existing guidance. The ASU includes additional quantitative and qualitative disclosures required by lessees and lessors to help users better understand the amount, timing, and uncertainty of cash flows arising from leases. ASU No. 2016-02 is effective for fiscal years beginning after December 31, 2018, and interim periods within those fiscal years. Lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. In July 2018, the FASB issued ASU No. 2018-11, “Leases (Topic 842) - Targeted Improvements” to provide entities with relief from the costs of implementing certain aspects of the new leasing standard. Specifically, under the amendments in ASU No. 2018-11 entities may elect not to recast the comparative periods presented when transitioning to the new leasing standard, and lessors may elect not to separate lease and non-lease components when certain conditions are met. As the Company elected the transition option provided in ASU No. 2018-11, the modified retrospective approach was applied on January 1, 2019 (as opposed to January 1, 2017). The Company also elected certain practical expedients provided under ASU No. 2016-02 whereby we will not reassess (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) initial direct costs for any existing leases. In December 2018, the FASB issued ASU No. 2018-20, “Leases (Topic 842): Narrow-Scope Improvements for Lessors,” which provides targeted improvements and clarification to guidance with FASB ASC Topic 842 specific to lessors. The amendments of ASU No. 2018-20 have the same effective date as ASU 2016-02 and may be applied either retrospectively or prospectively to all new and existing leases. The Company obtained a third-party software application which provides lease accounting under the guidelines of FASB ASC Topic 842. The amendments of ASU No. 2016-02 and subsequently issued ASUs, which provided additional guidance and clarifications to various aspects of FASB ASC Topic 842, became effective for the Company on January 1, 2019. The Company recognized right-of-use lease assets and related lease liabilities totaling $79.6 million and $82.8 million respectively as of January 1, 2019. The right-of-use lease assets and related lease liabilities recognized at January 1, 2019 include right-of-use lease assets and lease liabilities classified as discontinued operations. See Note 11 - Leases for more information. Future Application of Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13 "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This ASU improves financial reporting by requiring timelier recording of credit losses on loans and other financial instruments. The ASU requires companies to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Forward-looking information will now be used in credit loss estimates. The ASU requires enhanced disclosures to provide better understanding surrounding significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of a company’s portfolio. These disclosures include qualitative and quantitative requirements that provide additional information about the amounts recorded in the financial statements. Additionally, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration (“PCD assets”). Most debt instruments will require a cumulative-effect adjustment to retained earnings on the statement of financial position as of the beginning of the first reporting period in which the guidance is adopted (modified retrospective approach). However, there is instrument-specific (such as PCD assets) transition guidance requiring a prospective transition approach. For existing purchased credit-impaired assets, upon adoption, the amortized cost basis will be adjusted to reflect the addition of the allowance for credit losses. This transition relief avoids the need to reassess purchased financial assets that exist as of the date of adoption in order to determine whether they would have met, at acquisition, the new criteria of ‘more than insignificant’ credit deterioration since origination. The transition relief also allows the remaining accretable discount (based on the revised amortized cost basis) to accrete into interest income over the life of the related asset using the interest method. ASU No. 2016-13 is effective for interim and annual periods beginning after December 15, 2019. Early application will be permitted for interim and annual periods beginning after December 15, 2018. The Company is evaluating the provisions of ASU No. 2016-13, and will closely monitor developments and additional guidance to determine the potential impact on the Company's Consolidated Financial Statements. A cross-functional working group has been formed and is comprised of individuals from various functional areas including credit, risk management, finance and information technology, among others. This working group meets periodically to discuss the latest developments and ensure progress is being made. Management is working through its implementation plan which includes assessment and documentation of processes and internal controls; model development and documentation; and system configuration. Management is currently finalizing processes, policies and disclosures in preparation for performing a full end-to-end parallel run. This parallel run will be completed in the fourth quarter of 2019 for the period ended September 30, 2019. Management is also in the process of implementing a third-party vendor solution to assist us in the application of ASU No. 2016-13. The Company expects the primary changes to be the application of the new expected credit loss model from the incurred model. In addition, the Company expects the guidance to change the presentation of credit losses within the available-for-sale fixed maturities portfolio through an allowance method rather than as a direct write-down. The expected credit loss model will require a financial asset to be presented at the net amount expected to be collected. The allowance method for available-for-sale debt securities will allow the Company to record reversals of credit losses if the estimate of credit losses declines. The Company is in the process of identifying and implementing required changes to loan loss estimation models and processes and evaluating the impact of this new accounting guidance, which at the date of adoption is expected to increase the allowance for credit losses with a resulting increase to loans for the non-accretable discount on existing purchased credit-impaired assets and a negative adjustment to retained earnings for the remaining credit losses for financial assets. In January 2017, the FASB issued ASU No. 2017-04, “Intangibles: Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” The ASU simplifies the test for goodwill impairment by eliminating the second step of the current two-step method. Under the new accounting guidance, entities will compare the fair value of a reporting unit with its carrying amount. If the carrying amount exceeds the reporting unit’s fair value, the entity is required to recognize an impairment charge for this amount. Current guidance requires an entity to proceed to a second step, whereby the entity would determine the fair value of its assets and liabilities. The new method applies to all reporting units. The performance of a qualitative assessment is still allowable. This accounting guidance is effective prospectively for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. The Company does not expect adoption to have a material effect on its Consolidated Financial Statements. In August 2018, the FASB issued ASU No. 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement.” This ASU eliminates, adds, and modifies certain disclosure requirements for fair value measurements. Among the changes, entities will no longer be required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, but will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. ASU No. 2018-13 is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. Entities are also allowed to elect early adoption for the eliminated or modified disclosure requirements and delay adoption of the new disclosure requirements until their effective date. As ASU No. 2018-13 only revises disclosure requirements, it will not have a material impact on its Consolidated Financial Statements. In August 2018, the FASB issued ASU No. 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20): Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans.” This ASU amends and modifies the disclosure requirements for employers that sponsor defined benefit pension or other post-retirement plans. The amendments in this update remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. ASU No. 2018-14 is effective for fiscal years ending after December 15, 2020, with early adoption permitted. As ASU No. 2018-14 only revises disclosure requirements, it will not have a material impact on the Consolidated Financial Statements. In August 2018, the FASB issued ASU No. 2018-15, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract.” ASU No. 2018-15 clarifies certain aspects of ASU No. 2015-05, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement,” which was issued in April 2015. Specifically, ASU No. 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). ASU No. 2018-15 does not affect the accounting for the service element of a hosting arrangement that is a service contract. ASU No. 2018-15 is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. The amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. While the Company continues to assess all potential impacts of the standard, we currently do not expect adoption to have a material impact on the Company's Consolidated Financial Statements. As mentioned in the previous section in April 2019 the FASB issued ASU No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments.” With respect to FASB ASC Topic 326, Financial Instruments - Credit Losses, ASU No. 2019-04 clarifies the scope of the credit losses standard and addresses issues related to accrued interest receivable balances, recoveries, variable interest rates and prepayments, among other things. With respect to FASB ASC Topic 825, Financial Instruments, on recognizing and measuring financial instruments, ASU No. 2019-04 addresses the scope of the guidance, the requirement for remeasurement under FASB ASC Topic 820 when using the measurement alternative, certain disclosure requirements and which equity securities have to be remeasured at historical exchange rates. The amendments to FASB ASC Topic 326 have the same effective dates as ASU 2016-13 (i.e., the first quarter of 2020). The Company is currently evaluating the potential impact of FASB ASC Topic 326 amendments on the Company’s Consolidated Financial Statements. The amendments to FASB ASC Topic 825 are effective for interim and annual reporting periods beginning after December 15, 2019 and are not expected to have a material impact on the Company’s Consolidated Financial Statements. In May 2019, the FASB issued ASU No. 2019-05, “Financial Instruments - Credit Losses (Topic 326); Targeted Transition Relief.” ASU No. 2019-05 allows entities to irrevocably elect, upon adoption of ASU No. 2016-13, the fair value option on financial instruments that (1) were previously recorded at amortized cost and (2) are within the scope of ASC 326-20 if the instruments are eligible for the fair value option under ASC 825-10. The fair value option election does not apply to held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. ASU No. 2019-05 has the same effective date as ASU No. 2016-13 (i.e., the first quarter of 2020). The Company is continuing to evaluate the potential impact of ASU No. 2016-13 and the subsequently issued ASUs, which provide additional guidance and clarifications to various aspects of FASB ASC Topic 326.

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Summary of Assets Acquired and Liabilities Assumed and Fair Value Adjustments	The following table provides a summary of the assets acquired and liabilities assumed and the associated fair value adjustments as recorded by the Company at acquisition: (in thousands) As Acquired Fair Value Adjustments As Recorded by the Company Consideration Paid: Company common stock issued to SIFI common shareholders $ 175,804 Fair value of SIFI stock options converted to Berkshire options 907 Cash in lieu paid to SIFI shareholders 14 Total consideration paid $ 176,725 Recognized amounts of identifiable assets acquired and (liabilities) assumed, at fair value: Cash and short-term investments $ 110,774 $ — $ 110,774 Investment securities 144,629 (1,261 ) (a) 143,368 Loans held for sale 1,005 — 1,005 Loans, net 1,332,127 (29,388 ) (b) 1,302,739 Premises and equipment 19,039 (2,092 ) (c) 16,947 Core deposit intangibles — 17,980 (d) 17,980 Deferred tax assets, net 6,629 10,607 (e) 17,236 Goodwill and other intangibles 16,063 (16,063 ) (f) — Other assets 60,648 (341 ) 60,307 Deposits (1,327,115 ) (7,733 ) (g) (1,334,848 ) Borrowings (154,726 ) 1,717 (h) (153,009 ) Other liabilities (33,987 ) (8,166 ) (i) (42,153 ) Total identifiable net assets $ 175,086 $ (34,740 ) $ 140,346 Goodwill 36,379 _____________________________________ Explanation of Certain Fair Value Adjustments: (a) The adjustment represents the write down of the book value of securities to their estimated fair value at the date of acquisition. (b) The adjustment represents the write-off of $15.6 million in allowance for loan and lease losses and the write down of the book value of loans to their estimated fair value based on interest rates and expected cash flows as of the acquisition date, which includes an estimate of expected loan loss inherent in the portfolio. Loans with evidence of credit deterioration at acquisition are accounted for under ASC 310-30 and had a book value of $55.8 million and had a fair value of $32.1 million , including a $4.2 million fair value adjustment that is accretable in earnings. Non-impaired loans accounted for under ASC 310-20 had a book value of $1.29 billion and have a fair value of $1.27 billion , including a $6.7 million fair value adjustment discount that is amortized over the remaining term of the loans using the effective interest method, or a straight-line method if the loan is a revolving credit facility. (c) The adjustment represents a decreased fair value based on the appraised value of Savings Institute’s owned branches comprised of $1.1 million for land. This is in addition to a $1.0 million reduction of the book value of furniture, fixtures, and equipment, to their estimated fair value and the immediate expensing of equipment not meeting the thresholds for capitalization in accordance with Company policy. The adjustments will be depreciated over the remaining estimated economic lives of the assets. (d) The adjustment represents the value of the core deposit base assumed in the acquisition. The core deposit asset was recorded as an identifiable intangible asset and will be amortized over the estimated useful life of the deposit base ( 10 years ). (e) Represents net deferred tax assets resulting from the fair value adjustments related to the acquired assets and liabilities, identifiable intangibles, and other purchase accounting adjustments. (f) Represents the write-off of goodwill and intangible assets from a prior SIFI acquisition. (g) The adjustment is necessary because the weighted average interest rate of time deposits exceeded the cost of similar funding at the time of acquisition. The amount will be amortized over the estimated useful life of eleven months . (h) Adjusts borrowings by a reduction of $0.8 million to their estimated fair value, which is calculated based on current market rates. This is in addition to a $0.9 million reduction to the estimated fair value for the SI Capital Trust II, which is calculated based on the amount an institution would be willing to purchase the instrument at in the open market. (i) Adjusts the book value of other liabilities to their estimated fair value at the acquisition date. The adjustment consists of a $7.6 million increase to post-retirement liabilities due to change-in-control provisions, a $0.8 million increase in bank-owned life insurance liabilities, offset by a decrease of $0.4 to the unfunded commitment reserve.
Summary of Provisional Information about the Savings Institute Acquired Loan Portfolio	Provisional information about the Savings Institute acquired loan portfolio subject to ASC 310-30 as of May 17, 2019 is as follows (in thousands): ASC 310-30 Loans Gross contractual receivable amounts at acquisition $ 55,754 Contractual cash flows not expected to be collected (nonaccretable discount) (19,427 ) Expected cash flows at acquisition 36,327 Interest component of expected cash flows (accretable discount) (4,200 ) Fair value of acquired loans $ 32,127
Summary of Pro Forma Information	Information in the following table is shown in thousands: Pro Forma (unaudited) Nine Months Ended September 30, 2019 2018 Net interest income $ 292,495 $ 305,643 Non-interest income 65,138 67,181 Income available to common shareholders 83,557 105,233

DISCONTINUED OPERATIONS (Tables

DISCONTINUED OPERATIONS (Tables)	9 Months Ended
	Sep. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Summary of Discontinued Operations	The following is a summary of the assets and liabilities of the discontinued operations of FCLS at September 30, 2019 and December 31, 2018: (in thousands) September 30, 2019 December 31, 2018 Assets Loans held for sale, at fair value $ 209,205 $ 94,050 Premises and equipment, net 1,561 1,867 Other assets 31,513 18,342 Total assets $ 242,279 $ 114,259 Liabilities Other liabilities $ 33,614 $ 9,597 Total liabilities $ 33,614 $ 9,597 The following presents operating results of the discontinued operations of FCLS for the three and nine months ended September 30, 2019 and September 30, 2018: Three Months Ended September 30, Nine Months Ended September 30, (in thousands) 2019 2018 2019 2018 Interest income $ 1,765 $ 1,622 $ 4,627 $ 4,111 Interest expense 1,030 666 2,676 1,613 Net interest income 735 956 1,951 2,498 Non-interest income 15,055 9,246 37,114 30,281 Total net revenue 15,790 10,202 39,065 32,779 Non-interest expense 13,043 11,349 35,090 33,662 Income from discontinued operations before income taxes 2,747 (1,147 ) 3,975 (883 ) Income tax expense 790 (305 ) 1,161 (238 ) Net income from discontinued operations $ 1,957 $ (842 ) $ 2,814 $ (645 )

SECURITIES AVAILABLE FOR SALE_2

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES (Tables)	9 Months Ended
	Sep. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Summary of Securities Available for Sale, Held to Maturity, and Marketable Equity Securities	The following is a summary of securities available for sale, held to maturity, and marketable equity securities: (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value September 30, 2019 Securities available for sale Municipal bonds and obligations $ 110,482 $ 6,299 $ — $ 116,781 Agency collateralized mortgage obligations 834,532 9,548 (228 ) 843,852 Agency mortgage-backed securities 173,304 1,358 (446 ) 174,216 Agency commercial mortgage-backed securities 60,567 548 (144 ) 60,971 Corporate bonds 128,268 1,585 (832 ) 129,021 Other bonds and obligations 43,612 1,153 (2 ) 44,763 Total securities available for sale 1,350,765 20,491 (1,652 ) 1,369,604 Securities held to maturity Municipal bonds and obligations 258,494 13,838 (3 ) 272,329 Agency collateralized mortgage obligations 70,314 3,620 (36 ) 73,898 Agency mortgage-backed securities 6,439 30 — 6,469 Agency commercial mortgage-backed securities 10,369 179 — 10,548 Tax advantaged economic development bonds 18,760 225 (1,095 ) 17,890 Other bonds and obligations 299 — — 299 Total securities held to maturity 364,675 17,892 (1,134 ) 381,433 Marketable equity securities 55,767 5,149 (1,320 ) 59,596 Total $ 1,771,207 $ 43,532 $ (4,106 ) $ 1,810,633 (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value December 31, 2018 Securities available for sale Municipal bonds and obligations $ 109,648 $ 2,272 $ (713 ) $ 111,207 Agency collateralized mortgage obligations 944,946 1,130 (15,192 ) 930,884 Agency mortgage-backed securities 175,406 36 (5,121 ) 170,321 Agency commercial mortgage-backed securities 62,200 — (3,275 ) 58,925 Corporate bonds 120,718 593 (1,355 ) 119,956 Other bonds and obligations 8,355 34 (35 ) 8,354 Total securities available for sale 1,421,273 4,065 (25,691 ) 1,399,647 Securities held to maturity Municipal bonds and obligations 264,524 3,569 (3,601 ) 264,492 Agency collateralized mortgage obligations 71,637 533 (778 ) 71,392 Agency mortgage-backed securities 7,219 — (297 ) 6,922 Agency commercial mortgage-backed securities 10,417 — (289 ) 10,128 Tax advantaged economic development bonds 19,718 22 (1,698 ) 18,042 Other bonds and obligations 248 — — 248 Total securities held to maturity 373,763 4,124 (6,663 ) 371,224 Marketable equity securities 55,471 4,370 (3,203 ) 56,638 Total $ 1,850,507 $ 12,559 $ (35,557 ) $ 1,827,509
Schedule of Estimated Fair Value of Available for Sale (“AFS”) and Held to Maturity (“HTM”) Securities Segregated by Contractual Maturity	The amortized cost and estimated fair value of available for sale (“AFS”) and held to maturity (“HTM”) securities segregated by contractual maturity at September 30, 2019 are presented below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Mortgage-backed securities are shown in total, as their maturities are highly variable. Available for sale Held to maturity Amortized Fair Amortized Fair (In thousands) Cost Value Cost Value Within 1 year $ 31,922 $ 32,001 $ 7,124 $ 7,124 Over 1 year to 5 years 26,647 26,628 14,213 14,361 Over 5 years to 10 years 77,205 78,590 10,897 10,970 Over 10 years 146,588 153,346 245,319 258,063 Total bonds and obligations 282,362 290,565 277,553 290,518 Mortgage-backed securities 1,068,403 1,079,039 87,122 90,915 Total $ 1,350,765 $ 1,369,604 $ 364,675 $ 381,433
Schedule of Securities Available for Sale and Held to Maturity with Unrealized Losses, Segregated by Duration	Securities available for sale and held to maturity with unrealized losses, segregated by the duration of their continuous unrealized loss positions, are summarized as follows: Less Than Twelve Months Over Twelve Months Total Gross Gross Gross Unrealized Fair Unrealized Fair Unrealized Fair (In thousands) Losses Value Losses Value Losses Value September 30, 2019 Securities available for sale Municipal bonds and obligations $ — $ — $ — $ — $ — $ — Agency collateralized mortgage obligations 128 47,441 100 15,642 228 63,083 Agency mortgage-backed securities 51 18,487 395 31,003 446 49,490 Agency commercial mortgage-backed securities 32 9,459 112 11,450 144 20,909 Corporate bonds 202 28,885 630 37,547 832 66,432 Other bonds and obligations 1 1,333 1 2,044 2 3,377 Total securities available for sale 414 105,605 1,238 97,686 1,652 203,291 Securities held to maturity Municipal bonds and obligations 3 802 — — 3 802 Agency collateralized mortgage obligations 36 10,377 — — 36 10,377 Agency mortgage-backed securities — — — — — — Tax advantaged economic development bonds — — 1,095 6,819 1,095 6,819 Total securities held to maturity 39 11,179 1,095 6,819 1,134 17,998 Total $ 453 $ 116,784 $ 2,333 $ 104,505 $ 2,786 $ 221,289 December 31, 2018 Securities available for sale Municipal bonds and obligations $ 55 $ 3,186 $ 658 $ 11,787 $ 713 $ 14,973 Agency collateralized mortgage obligations 76 39,114 15,116 755,528 15,192 794,642 Agency mortgage-backed securities 53 5,500 5,068 162,439 5,121 167,939 Agency commercial mortgage-backed securities 44 1,503 3,231 57,422 3,275 58,925 Corporate bonds 1,348 81,502 7 2,561 1,355 84,063 Other bonds and obligations — — 35 3,030 35 3,030 Total securities available for sale 1,576 130,805 24,115 992,767 25,691 1,123,572 Securities held to maturity Municipal bonds and obligations 127 17,596 3,474 103,759 3,601 121,355 Agency collateralized mortgage obligations — — 778 43,138 778 43,138 Agency mortgage-backed securities — — 297 6,922 297 6,922 Agency commercial mortgage-backed securities — — 289 10,128 289 10,128 Tax advantaged economic development bonds 65 8,078 1,633 6,512 1,698 14,590 Total securities held to maturity 192 25,674 6,471 170,459 6,663 196,133 Total $ 1,768 $ 156,479 $ 30,586 $ 1,163,226 $ 32,354 $ 1,319,705

LOANS (Tables)

LOANS (Tables)	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Schedule of Loans	The following is a summary of total loans: September 30, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ 320,492 $ 59,840 $ 380,332 $ 327,792 $ 25,220 $ 353,012 Other commercial real estate 2,436,759 1,211,370 3,648,129 2,260,919 786,290 3,047,209 Total commercial real estate 2,757,251 1,271,210 4,028,461 2,588,711 811,510 3,400,221 Commercial and industrial loans: 1,383,530 461,556 1,845,086 1,513,538 466,508 1,980,046 Total commercial loans 4,140,781 1,732,766 5,873,547 4,102,249 1,278,018 5,380,267 Residential mortgages: 1-4 family 2,249,158 574,442 2,823,600 2,317,716 238,952 2,556,668 Construction 9,653 5,404 15,057 9,582 174 9,756 Total residential mortgages 2,258,811 579,846 2,838,657 2,327,298 239,126 2,566,424 Consumer loans: Home equity 278,783 115,265 394,048 289,961 86,719 376,680 Auto and other 560,080 52,309 612,389 647,236 72,646 719,882 Total consumer loans 838,863 167,574 1,006,437 937,197 159,365 1,096,562 Total loans $ 7,238,455 $ 2,480,186 $ 9,718,641 $ 7,366,744 $ 1,676,509 $ 9,043,253
Schedule of Activity in the Accretable Yield for the Acquired Loan Portfolio that Falls Under the Review of ASC 310-30, Accounting for Certain Loans or Debt Securities Acquired in a Transfer	The following table summarizes activity in the accretable yield for the acquired loan portfolio that falls under the purview of ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality : Three Months Ended September 30, (In thousands) 2019 2018 Balance at beginning of period $ 5,420 $ 6,304 Acquisitions — — Accretion (2,872 ) (4,548 ) Net reclassifications from (to) nonaccretable difference 2,066 3,410 Payments received, net (196 ) (543 ) Balance at end of period $ 4,418 $ 4,623 Nine Months Ended September 30, (In thousands) 2019 2018 Balance at beginning of period $ 2,840 $ 11,561 Acquisitions 4,200 — Accretion (6,470 ) (14,862 ) Net reclassifications from (to) nonaccretable difference 4,195 10,460 Payments received, net (356 ) (2,455 ) Reclassification to TDR 9 — Disposals — (81 ) Balance at end of period $ 4,418 $ 4,623
Summary of Past Due Loans	The following is a summary of past due loans at September 30, 2019 and December 31, 2018: Business Activities Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Current Total Loans Past Due > September 30, 2019 Commercial real estate: Construction $ — $ — $ 4,794 $ 4,794 $ 315,698 $ 320,492 $ 4,794 Other commercial real estate 471 1 13,594 14,066 2,422,693 2,436,759 268 Total 471 1 18,388 18,860 2,738,391 2,757,251 5,062 Commercial and industrial loans: Total 1,271 636 11,375 13,282 1,370,248 1,383,530 1 Residential mortgages: 1-4 family 369 1,225 3,056 4,650 2,244,508 2,249,158 873 Construction — — — — 9,653 9,653 — Total 369 1,225 3,056 4,650 2,254,161 2,258,811 873 Consumer loans: — Home equity — 50 1,376 1,426 277,357 278,783 111 Auto and other 3,506 790 2,931 7,227 552,853 560,080 1 Total 3,506 840 4,307 8,653 830,210 838,863 112 Total $ 5,617 $ 2,702 $ 37,126 $ 45,445 $ 7,193,010 $ 7,238,455 $ 6,048 Business Activities Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Current Total Loans Past Due > December 31, 2018 Commercial real estate: Construction $ — $ — $ — $ — $ 327,792 $ 327,792 $ — Other commercial real estate 913 276 18,833 20,022 2,240,897 2,260,919 993 Total 913 276 18,833 20,022 2,568,689 2,588,711 993 Commercial and industrial loans: Total 4,694 975 4,636 10,305 1,503,233 1,513,538 4 Residential mortgages: 1-4 family 1,631 1,619 1,440 4,690 2,313,026 2,317,716 66 Construction — — — — 9,582 9,582 — Total 1,631 1,619 1,440 4,690 2,322,608 2,327,298 66 Consumer loans: Home equity 618 15 933 1,566 288,395 289,961 — Auto and other 3,543 615 1,699 5,857 641,379 647,236 — Total 4,161 630 2,632 7,423 929,774 937,197 — Total $ 11,399 $ 3,500 $ 27,541 $ 42,440 $ 7,324,304 $ 7,366,744 $ 1,063 Acquired Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Acquired Total Loans Past Due > September 30, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ 1,403 $ 59,840 $ — Other commercial real estate 8,649 199 3,149 11,997 26,355 1,211,370 645 Total 8,649 199 3,149 11,997 27,758 1,271,210 645 Commercial and industrial loans: Total 1,152 455 1,064 2,671 29,101 461,556 214 Residential mortgages: 1-4 family 1,662 23 917 2,602 11,654 574,442 38 Construction — — — — — 5,404 — Total 1,662 23 917 2,602 11,654 579,846 38 Consumer loans: Home equity 472 78 760 1,310 559 115,265 22 Auto and other 155 34 258 447 245 52,309 — Total 627 112 1,018 1,757 804 167,574 22 Total $ 12,090 $ 789 $ 6,148 $ 19,027 $ 69,317 $ 2,480,186 $ 919 Acquired Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Acquired Total Loans Past Due > December 31, 2018 Commercial real estate: — Construction $ — $ — $ — $ — $ — $ 25,220 $ — Other commercial real estate 2,603 1,127 4,183 7,913 11,994 786,290 1,652 Total 2,603 1,127 4,183 7,913 11,994 811,510 1,652 Commercial and industrial loans: Total 217 147 1,515 1,879 29,539 466,508 144 Residential mortgages: 1-4 family 1,382 144 918 2,444 4,888 238,952 75 Construction — — — — — 174 — Total 1,382 144 918 2,444 4,888 239,126 75 Consumer loans: Home equity 290 148 751 1,189 553 86,719 — Auto and other 193 62 547 802 314 72,646 96 Total 483 210 1,298 1,991 867 159,365 96 Total $ 4,685 $ 1,628 $ 7,914 $ 14,227 $ 47,288 $ 1,676,509 $ 1,967
Summary of Information Pertaining to Non-Accrual Loans	The following is summary information pertaining to non-accrual loans at September 30, 2019 and December 31, 2018: September 30, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ — $ — $ — $ — $ — $ — Other commercial real estate 13,326 2,504 15,830 17,840 2,531 20,371 Total 13,326 2,504 15,830 17,840 2,531 20,371 Commercial and industrial loans: Total 11,374 850 12,224 4,632 1,371 6,003 Residential mortgages: 1-4 family 2,183 879 3,062 1,374 843 2,217 Construction — — — — — — Total 2,183 879 3,062 1,374 843 2,217 Consumer loans: Home equity 1,265 738 2,003 933 751 1,684 Auto and other 2,930 258 3,188 1,699 451 2,150 Total 4,195 996 5,191 2,632 1,202 3,834 Total non-accrual loans $ 31,078 $ 5,229 $ 36,307 $ 26,478 $ 5,947 $ 32,425
Schedule of Loans Evaluated for Impairment	Loans evaluated for impairment as of September 30, 2019 and December 31, 2018 were as follows: Business Activities Loans (In thousands) Commercial Commercial and Residential Consumer Total September 30, 2019 Loans receivable: Balance at end of period Individually evaluated for impairment $ 18,009 $ 9,370 $ 2,685 $ 642 $ 30,706 Collectively evaluated for impairment 2,739,242 1,374,160 2,256,126 838,221 7,207,749 Total $ 2,757,251 $ 1,383,530 $ 2,258,811 $ 838,863 $ 7,238,455 Business Activities Loans (In thousands) Commercial Commercial and Residential Consumer Total December 31, 2018 Loans receivable: Balance at end of year Individually evaluated for impairment $ 23,345 $ 2,825 $ 2,089 $ 342 $ 28,601 Collectively evaluated for impairment 2,565,366 1,510,713 2,325,209 936,855 7,338,143 Total $ 2,588,711 $ 1,513,538 $ 2,327,298 $ 937,197 $ 7,366,744 Acquired Loans (In thousands) Commercial Commercial and Residential Consumer Total September 30, 2019 Loans receivable: Balance at end of Period Individually evaluated for impairment $ 2,813 $ 336 $ 375 $ 516 $ 4,040 Purchased credit-impaired loans 27,758 29,101 11,654 804 69,317 Collectively evaluated for impairment 1,240,639 432,119 567,817 166,254 2,406,829 Total $ 1,271,210 $ 461,556 $ 579,846 $ 167,574 $ 2,480,186 Acquired Loans (In thousands) Commercial Commercial and Residential Consumer Total December 31, 2018 Loans receivable: Balance at end of year Individually evaluated for impairment $ 3,980 $ 763 $ 362 $ 646 $ 5,751 Purchased credit-impaired loans 11,994 29,539 4,888 867 47,288 Collectively evaluated for impairment 795,536 436,206 233,876 157,852 1,623,470 Total $ 811,510 $ 466,508 $ 239,126 $ 159,365 $ 1,676,509
Summary of Impaired Loans	The following is a summary of impaired loans at September 30, 2019 and December 31, 2018: Business Activities Loans September 30, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate $ 17,542 $ 32,064 $ — Commercial and industrial loans 5,002 10,151 — Residential mortgages - 1-4 family 376 439 — Consumer - home equity 34 239 — Consumer - other — — — With an allowance recorded: Other commercial real estate $ 487 $ 502 $ 7 Commercial and industrial loans 4,314 6,671 88 Residential mortgages - 1-4 family 2,341 2,633 109 Consumer - home equity 604 616 43 Consumer - other 10 10 1 Total Commercial real estate $ 18,029 $ 32,566 $ 7 Commercial and industrial loans 9,316 16,822 88 Residential mortgages 2,717 3,072 109 Consumer 648 865 44 Total impaired loans $ 30,710 $ 53,325 $ 248 (1) The Recorded Investment represents the face amount of the loan increased or decreased by applicable accrued interest, net deferred loan fees and costs, and unamortized premium or discount, and reflects direct charge-offs. These amounts are components of total loans and other assets on the Consolidated Balance Sheet. (2) The Unpaid Principal Balance represents the customer's legal obligation to the Company. Business Activities Loans December 31, 2018 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 22,606 $ 31,038 $ — Commercial and industrial loans 1,584 2,566 — Residential mortgages - 1-4 family 443 441 — Consumer - home equity 230 242 — Consumer - other — — — With an allowance recorded: Other commercial real estate loans $ 666 $ 670 $ 9 Commercial and industrial loans 1,251 1,235 49 Residential mortgages - 1-4 family 1,663 1,779 128 Consumer - home equity 100 106 10 Consumer - other 13 13 1 Total Commercial real estate $ 23,272 $ 31,708 $ 9 Commercial and industrial loans 2,835 3,801 49 Residential mortgages 2,106 2,220 128 Consumer 343 361 11 Total impaired loans $ 28,556 $ 38,090 $ 197 (1) The Recorded Investment represents the face amount of the loan increased or decreased by applicable accrued interest, net deferred loan fees and costs, and unamortized premium or discount, and reflects direct charge-offs. This amount is a component of total loans on the Consolidated Balance Sheet. (2) The Unpaid Principal Balance represents the customer's legal obligation to the Company. Acquired Loans September 30, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 1,453 $ 4,254 $ — Commercial and industrial loans 307 500 — Residential mortgages - 1-4 family 293 294 — Consumer - home equity 426 846 — Consumer - other — — — With an allowance recorded: Other commercial real estate loans $ 1,360 $ 1,372 $ 113 Commercial and industrial loans 28 30 1 Residential mortgages - 1-4 family 86 111 8 Consumer - home equity 50 50 1 Consumer - other 40 38 5 Total x Commercial real estate $ 2,813 $ 5,626 $ 113 Commercial and industrial loans 335 530 1 Residential mortgages 379 405 8 Consumer 516 934 6 Total impaired loans $ 4,043 $ 7,495 $ 128 (1) The Recorded Investment represents the face amount of the loan increased or decreased by applicable accrued interest, net deferred loan fees and costs, and unamortized premium or discount, and reflects direct charge-offs. This amount is a component of total loans on the Consolidated Balance Sheet. (2) The Unpaid Principal Balance represents the customer's legal obligation to the Company. Acquired Loans December 31, 2018 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 3,055 $ 5,959 $ — Other commercial and industrial loans 538 644 — Residential mortgages - 1-4 family 271 324 — Consumer - home equity 399 1,053 — Consumer - other — 11 — With an allowance recorded: Other commercial real estate loans $ 925 $ 947 $ 9 Commercial and industrial loans 228 232 4 Residential mortgages - 1-4 family 94 117 36 Consumer - home equity 205 196 41 Consumer - other 43 40 7 Total Commercial real estate $ 3,980 $ 6,906 $ 9 Commercial and industrial loans 766 876 4 Residential mortgages 365 441 36 Consumer 647 1,300 48 Total impaired loans $ 5,758 $ 9,523 $ 97 (1) The Recorded Investment represents the face amount of the loan increased or decreased by applicable accrued interest, net deferred loan fees and costs, and unamortized premium or discount, and reflects direct charge-offs. This amount is a component of total loans on the Consolidated Balance Sheet. (2) The Unpaid Principal Balance represents the customer's legal obligation to the Company.
Summary of the Average Recorded Investment and Interest Income Recognized on Impaired Loans	The following is a summary of the average recorded investment and interest income recognized on impaired loans as of September 30, 2019 and 2018: Business Activities Loans Nine Months Ended Nine Months Ended (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 20,232 $ 289 $ 24,277 $ 277 Commercial and industrial loans 2,842 395 2,451 343 Residential mortgages - 1-4 family 380 15 683 22 Consumer - home equity 164 2 797 10 Consumer - other — — — — With an allowance recorded: Other commercial real estate loans $ 545 $ 17 $ 1,415 $ 60 Commercial and industrial loans 3,053 453 1,395 111 Residential mortgages - 1-4 family 2,035 101 1,401 47 Consumer - home equity 267 24 44 2 Consumer - other 11 — 15 1 Total Commercial real estate $ 20,777 $ 306 $ 25,692 $ 337 Commercial and industrial loans 5,895 848 3,846 454 Residential mortgages 2,415 116 2,084 69 Consumer loans 442 26 856 13 Total impaired loans $ 29,529 $ 1,296 $ 32,478 $ 873 Acquired Loans Nine Months Ended September 30, 2019 Nine Months Ended September 30, 2018 (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 1,295 $ 55 $ 4,354 $ 212 Commercial and industrial loans 465 40 552 40 Residential mortgages - 1-4 family 224 10 572 6 Consumer - home equity 441 13 766 2 Consumer - other — — 16 1 With an allowance recorded: Other commercial real estate loans $ 1,073 $ 46 $ 1,225 $ 53 Commercial and industrial loans 29 2 202 32 Residential mortgages - 1-4 family 89 5 80 6 Consumer - home equity 50 2 148 4 Consumer - other 42 1 — — Total Commercial real estate $ 2,368 $ 101 $ 5,579 $ 265 Commercial and industrial loans 494 42 754 72 Residential mortgages 313 15 652 12 Consumer loans 533 16 930 7 Total impaired loans $ 3,708 $ 174 $ 7,915 $ 356
Schedule of Recorded Investment and Number of Modifications for TDRs Identified During the Period	The following table discloses the recorded investments and numbers of modifications for TDRs where a concession has been made within the previous 12 months, that then defaulted in the respective reporting period. For the three and nine months ended September 30, 2019, there was one loan that were restructured that had subsequently defaulted during the period. There were no TDRs that defaulted within 12 months of modifications during the three months ended September 30, 2018. For the nine months ended September 30, 2018, there were two loans that were restructured that had subsequently defaulted during the period. Modifications that Subsequently Defaulted Three Months Ended September 30, 2019 (Dollars in thousands) Number of Contracts Recorded Investment Troubled Debt Restructurings Commercial real estate — — Commercial and industrial 1 195 Modifications that Subsequently Defaulted Nine Months Ended September 30, 2019 (Dollars in thousands) Number of Contracts Recorded Investment Troubled Debt Restructurings Commercial real estate — — Commercial and industrial 1 195 Modifications that Subsequently Defaulted Three Months Ended September 30, 2018 (Dollars in thousands) Number of Contracts Recorded Investment Troubled Debt Restructurings Commercial real estate — — Commercial and industrial — — Modifications that Subsequently Defaulted Nine Months Ended September 30, 2018 (Dollars in thousands) Number of Contracts Recorded Investment Troubled Debt Restructurings Commercial real estate 1 5,992 Commercial and industrial 1 1,065 The following tables include the recorded investment and number of modifications identified during the three and nine ended September 30, 2019 and September 30, 2018. The table includes the recorded investment in the loans prior to a modification and also the recorded investment in the loans after the loans were restructured. The modifications for the three and nine months ended September 30, 2019 and 2018 were attributable to interest rate concessions, principal concessions, maturity date extensions, modified payment terms, reamortization, and accelerated maturity. Three Months Ended September 30, 2019 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate — $ — $ — Commercial and industrial — — — Residential - 1-4 Family 2 65 65 Total 2 $ 65 $ 65 Nine Months Ended September 30, 2019 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate 2 $ 145 $ 145 Commercial and industrial 3 475 472 Residential - 1-4 Family 2 65 65 Total 7 $ 685 $ 682 Three Months Ended September 30, 2018 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial and industrial — $ — $ — Residential - 1-4 Family 1 30 30 Total 1 $ 30 $ 30 Nine Months Ended September 30, 2018 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings 19 Commercial and industrial 4 1,995 1,924 Residential - 1-4 Family 2 148 148 Total 6 $ 2,143 $ 2,072
Schedule of TDR Activity	The following table presents the Company’s TDR activity for the three and nine months ended September 30, 2019 and 2018: Three Months Ended September 30, (In thousands) 2019 2018 Balance at beginning of the period $ 25,089 $ 33,507 Principal payments (3,876 ) (3,567 ) TDR status change (1) — — Other reductions (2) (1,548 ) (1,206 ) Newly identified TDRs 65 30 Balance at end of the period $ 19,730 $ 28,764 Nine Months Ended September 30, (In thousands) 2019 2018 Balance at beginning of the period $ 27,415 $ 41,990 Principal payments (5,664 ) (6,718 ) TDR status change (1) — — Other reductions (2) (2,703 ) (8,580 ) Newly identified TDRs 682 2,072 Balance at end of the period $ 19,730 $ 28,764 _________________________________ (1) TDR status change classification represents TDR loans with a specified interest rate equal to or greater than the rate that the Company was willing to accept at the time of the restructuring for a new loan with comparable risk and the loan was on current payment status and not impaired based on the terms specified by the restructuring agreement. (2) Other reductions classification consists of transfer to other real estate owned, payoffs, charge-offs, and advances to loans.

LOAN LOSS ALLOWANCE (Tables)

LOAN LOSS ALLOWANCE (Tables)	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Schedule of Activity in the Allowance for Loan Losses	Activity in the allowance for loan losses for the three and nine months ended September 30, 2019 and 2018 was as follows: At or for the three months ended September 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 22,408 $ 18,849 $ 8,834 $ 5,341 $ 55,432 Charged-off loans 3,061 19,315 95 760 23,231 Recoveries on charged-off loans 286 469 — 53 808 Provision/(releases) for loan losses 3,815 18,929 23 420 23,187 Balance at end of period $ 23,448 $ 18,932 $ 8,762 $ 5,054 $ 56,196 At or for the nine months ended September 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 21,732 $ 16,504 $ 10,535 $ 7,368 $ 56,139 Charged-off loans 5,019 22,171 343 2,536 30,069 Recoveries on charged-off loans 561 895 58 186 1,700 Provision/(releases) for loan losses 6,174 23,704 (1,488 ) 36 28,426 Balance at end of period $ 23,448 $ 18,932 $ 8,762 $ 5,054 $ 56,196 At or for the three months ended September 30, 2018 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 19,151 $ 14,655 $ 9,430 $ 7,078 $ 50,314 Charged-off loans 2,964 174 35 728 3,901 Recoveries on charged-off loans 1 60 108 47 216 Provision/(releases) for loan losses 4,406 493 587 919 6,405 Balance at end of period $ 20,594 $ 15,034 $ 10,090 $ 7,316 $ 53,034 At or for the nine months ended September 30, 2018 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 16,843 $ 13,850 $ 9,420 $ 5,807 $ 45,920 Charged-off loans 4,462 2,770 62 2,505 9,799 Recoveries on charged-off loans 50 551 114 256 971 Provision/(releases) for loan losses 8,163 3,403 618 3,758 15,942 Balance at end of period $ 20,594 $ 15,034 $ 10,090 $ 7,316 $ 53,034 At or for the three months ended September 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 4,562 $ 870 $ 882 $ 410 $ 6,724 Charged-off loans 20 89 97 87 293 Recoveries on charged-off loans 36 85 52 17 190 Provision/(releases) for loan losses (648 ) 20 7 34 (587 ) Balance at end of period $ 3,930 $ 886 $ 844 $ 374 $ 6,034 At or for the nine months ended September 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,153 $ 1,064 $ 630 $ 483 $ 5,330 Charged-off loans 824 460 201 515 2,000 Recoveries on charged-off loans 536 311 112 103 1,062 Provision/(releases) for loan losses 1,065 (29 ) 303 303 1,642 Balance at end of period $ 3,930 $ 886 $ 844 $ 374 $ 6,034 At or for the three months ended September 30, 2018 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,382 $ 1,127 $ 618 $ 484 $ 5,611 Charged-off loans 119 181 25 245 570 Recoveries on charged-off loans 9 104 14 32 159 Provision/(releases) for loan losses 115 (41 ) (15 ) 164 223 Balance at end of period $ 3,387 $ 1,009 $ 592 $ 435 $ 5,423 At or for the nine months ended September 30, 2018 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,856 $ 1,125 $ 598 $ 335 $ 5,914 Charged-off loans 1,831 336 1,078 938 4,183 Recoveries on charged-off loans 274 199 50 376 899 Provision/(releases) for loan losses 1,088 21 1,022 662 2,793 Balance at end of period $ 3,387 $ 1,009 $ 592 $ 435 $ 5,423 The following tables present a summary of the allowance for loan losses as of September 30, 2019 and December 31, 2018: At September 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 7 88 109 44 248 Collectively evaluated for impairment 23,441 18,844 8,653 5,010 55,948 Total $ 23,448 $ 18,932 $ 8,762 $ 5,054 $ 56,196 At December 31, 2018 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 9 49 128 11 197 Collectively evaluated for impairment 21,723 16,455 10,407 7,357 55,942 Total 21,732 16,504 10,535 7,368 56,139 At September 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 113 1 8 6 128 Collectively evaluated for impairment 3,817 885 836 368 5,906 Total $ 3,930 $ 886 $ 844 $ 374 $ 6,034 At December 31, 2018 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 9 4 36 48 97 Collectively evaluated for impairment 3,144 1,060 594 435 5,233 Total 3,153 1,064 630 483 5,330
Schedule of Loans by Risk Rating	The following tables present the Company’s loans by risk rating at September 30, 2019 and December 31, 2018: Business Activities Loans Commercial Real Estate Credit Risk Profile by Creditworthiness Category Construction Real Estate Total commercial real estate (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Grade: Pass $ 307,085 $ 327,792 $ 2,361,054 $ 2,198,129 $ 2,668,139 $ 2,525,921 Special mention 8,613 — 24,201 9,805 32,814 9,805 Substandard 4,794 — 51,504 52,985 56,298 52,985 Total $ 320,492 $ 327,792 $ 2,436,759 $ 2,260,919 $ 2,757,251 $ 2,588,711 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total commercial and industrial loans (In thousands) September 30, 2019 December 31, 2018 Grade: Pass $ 1,292,835 $ 1,469,139 Special mention 61,327 14,279 Substandard 27,007 29,176 Doubtful 2,361 944 Total $ 1,383,530 $ 1,513,538 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Grade: Pass $ 2,244,878 $ 2,314,657 $ 9,653 $ 9,582 $ 2,254,531 $ 2,324,239 Special mention 1,225 1,619 — — 1,225 1,619 Substandard 3,055 1,440 — — 3,055 1,440 Total $ 2,249,158 $ 2,317,716 $ 9,653 $ 9,582 $ 2,258,811 $ 2,327,298 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Performing $ 277,518 $ 289,028 $ 557,150 $ 645,537 $ 834,668 $ 934,565 Nonperforming 1,265 933 2,930 1,699 4,195 2,632 Total $ 278,783 $ 289,961 $ 560,080 $ 647,236 $ 838,863 $ 937,197 Acquired Loans Commercial Real Estate Credit Risk Profile by Creditworthiness Category Construction Real Estate Total commercial real estate (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Grade: Pass $ 57,734 $ 24,519 $ 1,151,715 $ 743,684 $ 1,209,449 $ 768,203 Special mention — — 5,487 9,086 5,487 9,086 Substandard 2,106 701 54,168 33,520 56,274 34,221 Total $ 59,840 $ 25,220 $ 1,211,370 $ 786,290 $ 1,271,210 $ 811,510 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total commercial and industrial loans (In thousands) September 30, 2019 December 31, 2018 Grade: Pass $ 434,018 $ 439,602 Special mention 6,415 11,374 Substandard 21,123 15,532 Total $ 461,556 $ 466,508 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Grade: Pass $ 569,636 $ 235,173 $ 5,404 $ 174 $ 575,040 $ 235,347 Special mention 76 144 — — 76 144 Substandard 4,730 3,635 — — 4,730 3,635 Total $ 574,442 $ 238,952 $ 5,404 $ 174 $ 579,846 $ 239,126 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Performing $ 114,527 $ 85,968 $ 52,051 $ 72,195 $ 166,578 $ 158,163 Nonperforming 738 751 258 451 996 1,202 Total $ 115,265 $ 86,719 $ 52,309 $ 72,646 $ 167,574 $ 159,365
Summary of Information About Total Loans Rated Special Mention or Lower	The following table summarizes information about total loans rated Special Mention or lower as of September 30, 2019 and December 31, 2018. The table below includes consumer loans that are special mention and substandard accruing that are classified in the above table as performing based on payment activity. September 30, 2019 December 31, 2018 (In thousands) Business Acquired Loans Total Business Acquired Loans Total Non-Accrual $ 31,078 $ 5,229 $ 36,307 $ 26,478 $ 5,947 $ 32,425 Substandard Accruing 61,952 77,991 139,943 60,698 48,792 109,490 Total Classified 93,030 83,220 176,250 87,176 54,739 141,915 Special Mention 96,206 12,201 108,407 26,333 20,833 47,166 Total Criticized $ 189,236 $ 95,421 $ 284,657 $ 113,509 $ 75,572 $ 189,081

DEPOSITS (Tables)

DEPOSITS (Tables)	9 Months Ended
	Sep. 30, 2019
Deposits [Abstract]
Summary of Time Deposits	A summary of time deposits is as follows: (In thousands) September 30, December 31, Time less than $100,000 $ 951,233 $ 719,689 Time $100,000 through $250,000 2,335,990 2,060,500 Time more than $250,000 670,498 507,528 Total time deposits $ 3,957,721 $ 3,287,717

BORROWED FUNDS (Tables)

BORROWED FUNDS (Tables)	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Schedule of Borrowed Funds	Borrowed funds at September 30, 2019 and December 31, 2018 are summarized, as follows: September 30, 2019 December 31, 2018 Weighted Weighted Average Average (Dollars in thousands) Principal Rate Principal Rate Short-term borrowings: Advances from the FHLB $ 300,000 2.25 % $ 1,118,832 2.58 % Total short-term borrowings: 300,000 2.25 1,118,832 2.58 Long-term borrowings: Advances from the FHLB and other borrowings 604,149 2.14 309,466 2.17 Subordinated borrowings 74,188 7.00 74,054 7.00 Junior subordinated borrowing - Trust I 15,464 4.00 15,464 4.50 Junior subordinated borrowing - Trust II 7,339 3.82 — — Total long-term borrowings: 701,140 2.72 398,984 3.16 Total $ 1,001,140 2.58 % $ 1,517,816 2.73 %
Summary of Maturities of FHLBB Advances	A summary of maturities of FHLB advances as of September 30, 2019 is as follows: September 30, 2019 Weighted Average (In thousands, except rates) Principal Rate Fixed rate advances maturing: 2019 $ 190,329 2.29 % 2020 420,301 2.25 2021 231,476 2.00 2022 42,560 1.98 2023 and beyond 19,483 2.12 Total FHLB advances $ 904,149 2.18 %

DERIVATIVE INSTRUMENTS AND HE_2

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables)	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Swap Agreements and Non-Hedging Derivative Assets and Liabilities	Information about derivative assets and liabilities at September 30, 2019 , follows: Weighted Weighted Average Rate Estimated Notional Average Contract Fair Value Amount Maturity Received pay rate Asset (Liability) (In thousands) (In years) (In thousands) Economic hedges: Interest rate swap on tax advantaged economic development bond $ 9,569 10.2 2.40 % 5.09 % $ (1,703 ) Interest rate swaps on loans with commercial loan customers 1,610,888 6.6 4.42 % 3.51 % 101,218 Reverse interest rate swaps on loans with commercial loan customers 1,610,888 6.6 3.51 % 4.42 % (103,884 ) Risk participation agreements with dealer banks 292,645 7.9 411 Forward sale commitments (1) 515,203 0.2 (54 ) Total economic hedges 4,039,193 (4,012 ) Non-hedging derivatives: Commitments to lend (1) 406,271 0.2 7,084 Total non-hedging derivatives 406,271 7,084 Total $ 4,445,464 $ 3,072 (1) Includes the impact of discontinued operations. Information about derivative assets and liabilities at December 31, 2018 , follows: Weighted Weighted Average Rate Estimated Notional Average Contract Fair Value Amount Maturity Received pay rate Asset (Liability) (In thousands) (In years) (In thousands) Economic hedges: Interest rate swap on tax advantaged economic development bond $ 10,090 10.9 2.72 % 5.09 % $ (1,240 ) Interest rate swaps on loans with commercial loan customers 1,346,894 6.7 4.53 % 4.04 % 11,443 Reverse interest rate swaps on loans with commercial loan customers 1,346,894 6.7 4.04 % 4.53 % (11,953 ) Risk participation agreements with dealer banks 243,806 5.7 237 Forward sale commitments (1) 190,807 0.2 (734 ) Total economic hedges 3,138,491 (2,247 ) Non-hedging derivatives: Commitments to lend (1) 165,079 0.2 3,927 Total non-hedging derivatives 165,079 3,927 Total $ 3,303,570 $ 1,680
Schedule of Amounts Included in the Consolidated Statements of Income Related to Economic Hedges and Non-Hedging Derivatives	Amounts included in the Consolidated Statements of Income related to economic hedges and non-hedging derivatives were as follows: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2019 2018 2019 2018 Economic hedges Interest rate swap on industrial revenue bond: Unrealized (loss)/gain recognized in other non-interest income $ (120 ) $ 142 $ (463 ) $ 616 Interest rate swaps on loans with commercial loan customers: Unrealized (loss)/gain recognized in other non-interest income 26,975 (4,721 ) 91,931 (24,660 ) (Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income (872 ) 60 (2,156 ) 391 Reverse interest rate swaps on loans with commercial loan customers: Unrealized gain/(loss) recognized in other non-interest income (26,975 ) 4,721 (91,931 ) 24,660 Risk participation agreements: Unrealized gain recognized in other non-interest income 68 67 174 90 Forward commitments: Unrealized (loss) recognized in discontinued operations 1,090 587 680 (980 ) Realized gain in discontinued operations (3,343 ) 115 (9,142 ) 5,114 Non-hedging derivatives Commitments to lend Unrealized gain recognized in discontinued operations $ (1,921 ) $ 4,924 $ 3,157 $ 18,740 Realized gain in discontinued operations 20,476 3,345 46,189 6,439
Schedule of Assets Subject to an Enforceable Master Netting Arrangement	Offsetting of Financial Assets and Derivative Assets Gross Amounts of Gross Amounts Offset in the Net Amounts of Assets Presented in the Gross Amounts Not Offset in the Statements of Condition Recognized Statements of Statements of Financial Cash (In thousands) Assets Condition Condition Instruments Collateral Received Net Amount December 31, 2018 Interest Rate Swap Agreements: Institutional counterparties $ 9,485 $ (3,592 ) $ 5,893 $ — $ — $ 5,893 Commercial counterparties 21,345 (157 ) 21,188 — — 21,188 Total $ 30,830 $ (3,749 ) $ 27,081 $ — $ — $ 27,081 Offsetting of Financial Assets and Derivative Assets Gross Amounts of Gross Amounts Offset in the Net Amounts of Assets Presented in the Gross Amounts Not Offset in the Statements of Condition Recognized Statements of Statements of Financial Cash (In thousands) Assets Condition Condition Instruments Collateral Received Net Amount September 30, 2019 Interest Rate Swap Agreements: Institutional counterparties $ 805 $ (18 ) $ 787 $ — $ — $ 787 Commercial counterparties 101,330 — 101,330 — — 101,330 Total $ 102,135 $ (18 ) $ 102,117 $ — $ — $ 102,117
Schedule of Liabilities Subject to an Enforceable Master Netting Arrangement	Offsetting of Financial Liabilities and Derivative Liabilities Gross Amounts of Gross Amounts Offset in the Net Amounts of Liabilities Presented in the Gross Amounts Not Offset in the Statements of Condition Recognized Statements of Statements of Financial Cash (In thousands) Liabilities Condition Condition Instruments Collateral Pledged Net Amount December 31, 2018 Interest Rate Swap Agreements: Institutional counterparties $ (19,949 ) $ 1,101 $ (18,848 ) $ — $ 25,412 $ 6,564 Commercial counterparties (9,932 ) 187 (9,745 ) — — (9,745 ) Total $ (29,881 ) $ 1,288 $ (28,593 ) $ — $ 25,412 $ (3,181 ) Offsetting of Financial Liabilities and Derivative Liabilities Gross Amounts of Gross Amounts Offset in the Net Amounts of Liabilities Presented in the Gross Amounts Not Offset in the Statements of Condition Recognized Statements of Statements of Financial Cash (In thousands) Liabilities Condition Condition Instruments Collateral Pledged Net Amount September 30, 2019 Interest Rate Swap Agreements: Institutional counterparties $ (106,232 ) $ 270 $ (105,962 ) $ 26,507 $ 102,837 $ 23,382 Commercial counterparties (112 ) — (112 ) — — (112 ) Total $ (106,344 ) $ 270 $ (106,074 ) $ 26,507 $ 102,837 $ 23,270

LEASES (Tables)

LEASES (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Schedule of ROU Assets and Lease Liabilities	The following table represents the Consolidated Balance Sheets classification of the Company’s ROU assets and lease liabilities: (In thousands) September 30, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets $ 78,824 Finance lease right-of-use assets Premises and equipment, net 7,850 Total Lease Right-of-Use Assets $ 86,674 Lease Liabilities Operating lease liabilities (1) Other liabilities $ 83,256 Finance lease liabilities Other liabilities 11,090 Total Lease Liabilities $ 94,346 (1) Includes assets and liabilities classified as discontinued operations.
Summary of Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases was as follows: Three Months Ended Nine Months Ended (In thousands) September 30, 2019 September 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) $ 3,829 $ 10,984 Operating cash flows from finance leases 159 478 Financing cash flows from finance leases 119 315 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 1,149 88,790 Finance leases — — (1) Includes cash flows related to discontinued operations.
Schedule of Maturity Analysis of Operating Lease Liability	The following table presents a maturity analysis of the Company’s lease liability by lease classification at September 30, 2019: (In thousands) Operating Leases Finance Leases 2019 $ 3,624 $ 336 2020 13,700 1,031 2021 12,425 1,031 2022 11,207 1,031 2023 9,244 1,037 Thereafter 48,701 11,296 Total undiscounted lease payments (1) 98,901 15,762 Less amounts representing interest (1) (15,645 ) (4,672 ) Lease liability (1) $ 83,256 $ 11,090 (1) Includes discontinued operations.
Schedule of Maturity Analysis of Finance Lease Liability	The following table presents a maturity analysis of the Company’s lease liability by lease classification at September 30, 2019: (In thousands) Operating Leases Finance Leases 2019 $ 3,624 $ 336 2020 13,700 1,031 2021 12,425 1,031 2022 11,207 1,031 2023 9,244 1,037 Thereafter 48,701 11,296 Total undiscounted lease payments (1) 98,901 15,762 Less amounts representing interest (1) (15,645 ) (4,672 ) Lease liability (1) $ 83,256 $ 11,090 (1) Includes discontinued operations.

CAPITAL RATIOS AND SHAREHOLDE_2

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY (Tables)	9 Months Ended
	Sep. 30, 2019
Stockholders' Equity Note [Abstract]
Schedule of Actual and Required Capital Ratios	The actual and required capital ratios were as follows: September 30, Regulatory December 31, Regulatory Company (consolidated) Total capital to risk weighted assets 13.0 % N/A 13.0 % N/A Common equity tier 1 capital to risk weighted assets 11.5 N/A 11.4 N/A Tier 1 capital to risk weighted assets 11.7 N/A 11.6 N/A Tier 1 capital to average assets 9.2 N/A 9.0 N/A Bank Total capital to risk weighted assets 12.2 % 8.0 % 12.2 % 8.0 % Common equity tier 1 capital to risk weighted assets 11.6 4.5 11.6 4.5 Tier 1 capital to risk weighted assets 11.6 6.0 11.6 6.0 Tier 1 capital to average assets 9.1 4.0 9.0 4.0
Schedule of Components of Accumulated Other Comprehensive Income	Components of accumulated other comprehensive income/(loss) is as follows: (In thousands) September 30, December 31, Other accumulated comprehensive income, before tax: Net unrealized holding gain/(loss) on AFS securities $ 24,210 $ (15,267 ) Net unrealized holding (loss) on pension plans (2,753 ) (2,753 ) Income taxes related to items of accumulated other comprehensive income: Net unrealized tax (expense)/benefit on AFS securities (6,313 ) 3,814 Net unrealized tax benefit on pension plans 736 736 Accumulated other comprehensive income/(loss) $ 15,880 $ (13,470 )
Schedule of Components of Other Comprehensive Income	The following table presents the components of other comprehensive income for the three and nine months ended September 30, 2019 and 2018 : (In thousands) Before Tax Tax Effect Net of Tax Three Months Ended September 30 , 2019 Net unrealized holding gain on AFS securities: x Net unrealized gains arising during the period $ 6,159 $ (1,576 ) $ 4,583 Less: reclassification adjustment for gains realized in net income 5 (1 ) 4 Net unrealized holding gain on AFS securities 6,154 (1,575 ) 4,579 Other comprehensive income $ 6,154 $ (1,575 ) $ 4,579 Three Months Ended September 30 , 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (9,923 ) $ 2,546 $ (7,377 ) Less: reclassification adjustment for gains realized in net income 6 (2 ) 4 Net unrealized holding (loss) on AFS securities (9,929 ) 2,548 (7,381 ) Other comprehensive (loss) $ (9,929 ) $ 2,548 $ (7,381 ) (In thousands) Before Tax Tax Effect Net of Tax Nine Months Ended September 30, 2019 Net unrealized holding gain on AFS securities: x Net unrealized gains arising during the period $ 39,486 $ (10,129 ) $ 29,357 Less: reclassification adjustment for gains realized in net income 9 (2 ) 7 Net unrealized holding gain on AFS securities 39,477 (10,127 ) 29,350 Other comprehensive income $ 39,477 $ (10,127 ) $ 29,350 Nine Months Ended September 30, 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (36,925 ) $ 9,478 $ (27,447 ) Less: reclassification adjustment for gains realized in net income 6 (2 ) 4 Net unrealized holding (loss) on AFS securities (36,931 ) 9,480 (27,451 ) Other comprehensive (loss) $ (36,931 ) $ 9,480 $ (27,451 ) Less: reclassification related to adoption of ASU 2016-01 8,379 (2,126 ) 6,253 Less: reclassification related to adoption of ASU 2018-01 — (896 ) (896 ) Total change to accumulated other comprehensive (loss) 45,310 12,502 (32,808 )
Schedule of Gross Changes in Each Component of Accumulated Other Comprehensive Income	The following table presents the changes in each component of accumulated other comprehensive income/(loss), for the three and nine ended September 30, 2019 and 2018 : (In thousands) Net unrealized holding loss on AFS Securities Net unrealized holding loss on pension plans Total Three Months Ended September 30, 2019 Balance at Beginning of Period $ 13,318 $ (2,017 ) $ 11,301 Other comprehensive income before reclassifications 4,583 — 4,583 Less: amounts reclassified from accumulated other comprehensive income (loss) 4 — 4 Total other comprehensive income 4,579 — 4,579 Balance at End of Period $ 17,897 $ (2,017 ) $ 15,880 Three Months Ended September 30, 2018 Balance at Beginning of Period $ (19,021 ) $ (2,245 ) $ (21,266 ) Other comprehensive (loss) before reclassifications (7,377 ) — (7,377 ) Less: amounts reclassified from accumulated other comprehensive income (loss) 4 — 4 Total other comprehensive (loss) (7,381 ) — (7,381 ) Balance at End of Period $ (26,402 ) $ (2,245 ) $ (28,647 ) Nine Months Ended September 30, 2019 Balance at Beginning of Period $ (11,453 ) $ (2,017 ) $ (13,470 ) Other comprehensive income before reclassifications 29,357 — 29,357 Less: amounts reclassified from accumulated other comprehensive income 7 — 7 Total other comprehensive income 29,350 — 29,350 Balance at End of Period $ 17,897 $ (2,017 ) $ 15,880 Nine Months Ended September 30, 2018 Balance at Beginning of Period $ 6,008 $ (1,847 ) $ 4,161 Other comprehensive (loss) before reclassifications (27,447 ) — (27,447 ) Less: amounts reclassified from accumulated other comprehensive income 4 — 4 Total other comprehensive (loss) (27,451 ) — (27,451 ) Less: amounts reclassified from accumulated other comprehensive income (loss) related to adoption of ASU 2016-01 and ASU 2018-02 4,959 398 5,357 Balance at End of Period $ (26,402 ) $ (2,245 ) $ (28,647 )
Schedule of Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Income	The following table presents the amounts reclassified out of each component of accumulated other comprehensive income/(loss) for the three and nine ended September 30, 2019 and 2018 : Affected Line Item in the Three Months Ended September 30, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ 5 $ 6 Non-interest income (1 ) (2 ) Tax expense 4 4 Net of tax Total reclassifications for the period $ 4 $ 4 Net of tax Affected Line Item in the Nine Months Ended September 30, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ 9 $ 6 Non-interest income (2 ) (2 ) Tax expense 7 4 Net of tax Total reclassifications for the period $ 7 $ 4 Net of tax

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	Earnings per share have been computed based on the following (average diluted shares outstanding are calculated using the treasury stock method): Three Months Ended September 30, Nine Months Ended September 30, (In thousands, except per share data) 2019 2018 2019 2018 Income from continuing operations $ 20,659 $ 33,069 $ 68,885 $ 92,151 Income from discontinued operations 1,957 (842 ) 2,814 (645 ) Net income $ 22,616 $ 32,227 $ 71,699 $ 91,506 Average number of common shares issued 51,903 46,212 49,068 46,212 Less: average number of treasury shares 1,089 790 855 816 Less: average number of unvested stock award shares 435 435 410 430 Plus: average participating preferred shares 1,043 1,043 1,043 1,043 Average number of basic shares outstanding 51,422 46,030 48,846 46,009 Plus: dilutive effect of unvested stock award shares 87 202 109 186 Plus: dilutive effect of stock options outstanding 36 31 32 31 Average number of diluted shares outstanding 51,545 46,263 48,987 46,226 Basic earnings per common share: Continuing operations $ 0.40 $ 0.72 $ 1.41 $ 2.00 Discontinued operations 0.04 (0.02 ) 0.06 (0.01 ) Total $ 0.44 $ 0.70 $ 1.47 $ 1.99 Diluted earnings per common share: Continuing operations $ 0.40 $ 0.72 $ 1.40 $ 1.99 Discontinued operations 0.04 (0.02 ) 0.06 (0.01 ) Total $ 0.44 $ 0.70 $ 1.46 $ 1.98

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS (Tables)	9 Months Ended
	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
Summary of Activity in the Stock Award and Stock Option Plans	A combined summary of activity in the Company’s stock award and stock option plans for the nine months ended September 30, 2019 is presented in the following table: Non-Vested Stock Awards Outstanding Stock Options Outstanding (Shares in thousands) Number of Shares Weighted-Average Grant Date Fair Value Number of Shares Weighted-Average Exercise Price December 31, 2018 371 $ 33.63 31 $ 10.82 Granted 284 29.51 — — Acquired — — 133 23.99 Stock options exercised — — (6 ) 11.40 Stock awards vested (130 ) 31.76 — — Forfeited (59 ) 33.18 — — Expired — — — — September 30, 2019 466 $ 32.54 158 $ 21.02 Exercisable options at September 30, 2019 158 $ 21.02

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Summary of Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis Segregated by the Level of the Valuation Inputs Within the Fair Value Hierarchy Utilized to Measure Fair Value	The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2019 and December 31, 2018 , segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. September 30, 2019 Level 1 Level 2 Level 3 Total (In thousands) Inputs Inputs Inputs Fair Value Trading security $ — $ — $ 11,145 $ 11,145 Securities available for sale: Municipal bonds and obligations — 116,781 — 116,781 Agency collateralized mortgage obligations — 843,852 — 843,852 Agency residential mortgage-backed securities — 174,216 — 174,216 Agency commercial mortgage-backed securities — 60,971 — 60,971 Corporate bonds — 129,021 — 129,021 Other bonds and obligations — 44,763 — 44,763 Marketable equity securities 58,539 1,057 — 59,596 Loans held for sale (1) — 215,314 — 215,314 Derivative assets (1) — 101,442 7,084 108,526 Capitalized servicing rights (1) — — 16,413 16,413 Derivative liabilities (1) 54 105,400 — 105,454 (1) Includes assets and liabilities classified as discontinued operations. December 31, 2018 Level 1 Level 2 Level 3 Total (In thousands) Inputs Inputs Inputs Fair Value Trading security $ — $ — $ 11,212 $ 11,212 Securities available for sale: Municipal bonds and obligations — 111,207 — 111,207 Agency collateralized mortgage obligations — 930,884 — 930,884 Agency residential mortgage-backed securities — 170,321 — 170,321 Agency commercial mortgage-backed securities — 58,925 — 58,925 Corporate bonds — 119,956 — 119,956 Other bonds and obligations — 8,354 — 8,354 Marketable equity securities 56,074 564 — 56,638 Loans held for sale (1) — 96,233 — 96,233 Derivative assets (1) — 31,727 3,927 35,654 Capitalized servicing rights (1) — — 11,485 11,485 Derivative liabilities (1) 734 33,239 — 33,973 (1) Includes assets and liabilities classified as discontinued operations.
Schedule of Loans Held for Sale	Aggregate Fair Value September 30, 2019 Aggregate Aggregate Less Aggregate (In thousands) Fair Value Unpaid Principal Unpaid Principal Loans held for sale - continuing operations $ 6,109 $ 6,024 $ 85 Loans held for sale - discontinued operations 209,205 204,335 4,870 Total loans held for sale $ 215,314 $ 210,359 $ 4,955 Aggregate Fair Value December 31, 2018 Aggregate Aggregate Less Aggregate (In thousands) Fair Value Unpaid Principal Unpaid Principal Loans held for sale - continuing operations $ 2,183 $ 2,140 $ 43 Loans held for sale - discontinued operations 94,050 90,879 3,171 Total loans held for sale $ 96,233 $ 93,019 $ 3,214
Schedule of Changes in Level 3 Assets and Liabilities That Were Measured at Fair Value on a Recurring Basis	The table below presents the changes in Level 3 assets and liabilities that were measured at fair value on a recurring basis for the three and nine months ended September 30, 2019 and 2018 . Assets (Liabilities) Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended September 30, 2019 June 30, 2019 $ 11,210 $ 9,005 $ — $ 11,206 Unrealized gain/(loss), net recognized in other non-interest income 109 — — — Unrealized gain/(loss), net recognized in discontinued operations — 19,915 — (1,381 ) Paydown of trading security (174 ) — — — Transfers to held for sale loans — (21,836 ) — — Additions to servicing rights — — — 6,588 September 30, 2019 $ 11,145 $ 7,084 $ — $ 16,413 Nine Months Ended September 30, 2019 December 31, 2018 $ 11,212 $ 3,927 $ — $ 11,485 Unrealized gain, net recognized in other non-interest income 454 — — — Unrealized gain/(loss), net recognized in discontinued operations — 48,254 — (4,495 ) Paydown of trading security (521 ) — — — Transfers to held for sale loans — (45,097 ) — — Additions to servicing rights — — — 9,423 September 30, 2019 $ 11,145 $ 7,084 $ — $ 16,413 Unrealized gains relating to instruments still held at September 30, 2019 $ 1,576 $ 7,084 $ — — Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended September 30, 2018 June 30, 2018 $ 11,483 $ 7,285 $ — $ 7,839 Unrealized gain/(loss), net recognized in other non-interest income (138 ) — — — Unrealized gain/(loss), net recognized in discontinued operations — 13,351 — 7 Paydown of trading security (166 ) — — — Transfers to held for sale loans — (15,712 ) — — Additions to servicing rights — — — 2,509 September 30, 2018 $ 11,179 $ 4,924 $ — $ 10,355 Nine Months Ended September 30, 2018 December 31, 2017 $ 12,277 $ 5,259 $ 19 $ 3,834 Unrealized gain, net recognized in other non-interest income (603 ) — — — Unrealized gain/(loss), net recognized in discontinued operations — 22,639 (19 ) 811 Paydown of trading security (495 ) — — — Transfers to held for sale loans — (22,974 ) — Additions to servicing rights — — — 5,710 September 30, 2018 $ 11,179 $ 4,924 $ — $ 10,355 Unrealized gains relating to instruments still held at September 30, 2018 $ 919 $ 4,924 $ — — (1) Classified as assets from discontinued operations on the consolidated balance sheets.
Schedule of Quantitative Information About the Significant Unobservable Inputs Within Level 3	The following is a summary of applicable non-recurring fair value measurements. There are no liabilities measured at fair value on a non-recurring basis. September 30, 2019 December 31, 2018 Fair Value Measurement Date as of September 30, 2019 Level 3 Level 3 Level 3 (In thousands) Inputs Inputs Inputs Assets Impaired loans $ 8,943 $ 4,892 September 2019 Capitalized servicing rights 14,354 11,891 September 2019 Total $ 23,297 $ 16,783 Quantitative information about the significant unobservable inputs within Level 3 recurring assets and liabilities is as follows: Fair Value Significant Unobservable Input (In thousands) September 30, 2019 Valuation Techniques Unobservable Inputs Value Assets (Liabilities) Trading security $ 11,145 Discounted Cash Flow Discount Rate 1.96 % Commitments to lend (1) 7,084 Historical Trend Closing Ratio 77.53 % Pricing Model Origination Costs, per loan $ 3,137 Capitalized servicing rights (1) 16,413 Discounted cash flow Constant Prepayment Rate (CPR) 11.80 % Discount Rate 10.00 % Total $ 34,642 (1) Classified as assets from discontinued operations on the consolidated balance sheets. Fair Value Significant Unobservable Input (In thousands) December 31, 2018 Valuation Techniques Unobservable Inputs Value Assets (Liabilities) Trading security $ 11,212 Discounted Cash Flow Discount Rate 3.07 % Commitments to lend (1) 3,927 Historical Trend Closing Ratio 82.36 % Pricing Model Origination Costs, per loan $ 3,063 Capitalized servicing rights (1) 11,485 Discounted Cash Flow Constant Prepayment Rate (CPR) 9.30 % Discount Rate 10.00 % Total $ 26,624 (1) Classified as assets from discontinued operations on the consolidated balance sheets.
Summary of Applicable Non-Recurring Fair Value Measurements	Quantitative information about the significant unobservable inputs within Level 3 non-recurring assets is as follows: Fair Value (In thousands) September 30, 2019 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets Impaired Loans $ 8,943 Fair Value of Collateral Discounted Cash Flow - Loss Severity 15.90% to 72.16% (1.30%) Appraised Value $3.9 to $1,550 ($761.4) Capitalized servicing rights 14,354 Discounted Cash Flow Constant Prepayment Rate (CPR) 9.28% to 13.55% (12.06%) Discount Rate 10.00% to 13.50% (11.69%) Total $ 23,297 (a) Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individuals properties. Fair Value (In thousands) December 31, 2018 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets Impaired Loans $ 4,892 Fair Value of Collateral Discounted Cash Flow - loss severity 0.00% to 51.16% (6.75%) Appraised Value $0.3 to $877 ($363) Capitalized servicing rights 11,891 Discounted Cash Flow Constant Prepayment Rate (CPR) 7.74% to 11.29% (9.74%) Discount Rate 10.00% to 14.13% (11.99%) Total $ 16,783 (a) Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individuals properties.
Summary of Estimated Fair Values, and Related Carrying Amounts, of Financial Instruments	The following tables summarize the estimated fair values (represents exit price), and related carrying amounts, of the Company’s financial instruments. Certain financial instruments and all non-financial instruments are excluded. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company. Certain assets and liabilities in the following disclosures include balances classified as discontinued operations. See Note 3 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. September 30, 2019 Carrying Fair (In thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 302,095 $ 302,095 $ 302,095 $ — $ — Trading security 11,145 11,145 — — 11,145 Marketable equity securities 59,596 59,596 58,539 1,057 — Securities available for sale 1,369,604 1,369,604 — 1,369,604 — Securities held to maturity 364,675 381,433 — 363,542 17,891 FHLB bank stock and restricted securities 56,049 N/A N/A N/A N/A Net loans 9,656,411 9,905,964 — — 9,905,964 Loans held for sale (1) 415,105 417,599 — 215,314 202,285 Accrued interest receivable 39,658 39,658 — 39,658 — Derivative assets (1) 108,526 108,526 — 101,442 7,084 Financial Liabilities Total deposits $ 10,423,318 $ 10,436,406 $ — $ 10,436,406 $ — Short-term debt 300,000 299,970 — 299,970 — Long-term Federal Home Loan Bank advances 604,149 604,540 — 604,540 — Subordinated borrowings 96,991 100,522 — 100,522 — Derivative liabilities (1) 105,454 105,454 54 105,400 — (1) Includes assets and liabilities classified as discontinued operations. December 31, 2018 Carrying Fair (In thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 183,189 $ 183,189 $ 183,189 $ — $ — Trading security 11,212 11,212 — — 11,212 Marketable equity securities 56,638 56,638 56,074 564 — Securities available for sale and other 1,399,647 1,399,647 — 1,399,647 — Securities held to maturity 373,763 371,224 — 353,182 18,042 FHLB bank stock and restricted securities 77,344 N/A N/A N/A N/A Net loans 8,981,784 9,026,442 — — 9,026,442 Loans held for sale (1) 96,233 96,233 — 96,233 — Accrued interest receivable 36,879 36,879 — 36,879 — Derivative assets (1) 35,654 35,654 — 31,727 3,927 Financial Liabilities Total deposits $ 8,982,381 $ 8,970,321 $ — $ 8,970,321 $ — Short-term debt 1,118,832 1,118,820 — 1,118,820 — Long-term Federal Home Loan Bank advances 309,466 308,336 — 308,336 — Subordinated borrowings 89,518 97,376 — 97,376 — Derivative liabilities (1) 33,973 33,973 734 33,239 — (1) Includes assets and liabilities classified as discontinued operations.

NET INTEREST INCOME AFTER PRO_2

NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES (Tables)	9 Months Ended
	Sep. 30, 2019
Banking and Thrift, Interest [Abstract]
Schedule of Net Interest Income After Provision for Loan Losses	Presented below is net interest income after provision for loan losses for the three and nine months ended September 30, 2019 and 2018, respectively. Three Months Ended September 30, Nine Months Ended September 31, (In thousands) 2019 2018 2019 2018 Net interest income from continuing operations $ 96,871 $ 88,385 $ 273,925 $ 263,434 Provision for loan losses 22,600 6,628 30,068 18,735 Net interest income from continuing operations after provision for loan losses $ 74,271 $ 81,757 $ 243,857 $ 244,699

BASIS OF PRESENTATION - Additio

BASIS OF PRESENTATION - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease, right-of-use asset	$ 86,674
Lease, liability	$ 94,346
ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease, right-of-use asset		$ 79,600
Lease, liability		$ 82,800

ACQUISITIONS - Narrative (Detai

ACQUISITIONS - Narrative (Details) - SI Financial Group, Inc.	May 17, 2019USD ($)branch$ / sharesshares	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)
Business Acquisition [Line Items]
Equity interest issued or issuable, shares converted (in shares) | shares	11,858,000
Equity interest issued or issuable, share exchange ratio	0.48
Equity interest issued or issuable, shares issued (in shares) | shares	5,691,000
Company common stock issued to SIFI common shareholders | $	$ 175,804,000
Equity interest issued or issuable, basis for determining value, share price (in dollars per share) | $ / shares	$ 30.89
Fair value of SIFI stock options converted to Berkshire options | $	$ 907,000
Direct acquisition and integration costs | $		$ 15,100,000	$ 0
Pro forma estimated tax rate		26.83%	26.83%
Eastern Connecticut
Business Acquisition [Line Items]
Number of branch banking offices | branch	18
Rhode Island
Business Acquisition [Line Items]
Number of branch banking offices | branch	5
Connecticut
Business Acquisition [Line Items]
Number of branch banking offices | branch	9

DISCONTINUED OPERATIONS - Narra

DISCONTINUED OPERATIONS - Narrative (Details)	3 Months Ended
	Mar. 31, 2019
First Choice Loan Services, Inc. | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Timing of disposal, term	12 months

ACQUISITIONS - Summary of the A

ACQUISITIONS - Summary of the Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	May 17, 2019	Jun. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Recognized amounts of identifiable assets acquired and (liabilities) assumed, at fair value:
Goodwill			$ 554,704	$ 518,325
SI Financial Group, Inc.
Consideration Paid:
Company common stock issued to SIFI common shareholders	$ 175,804
Fair value of SIFI stock options converted to Berkshire options	907
Cash in lieu paid to SIFI shareholders	14
Total consideration paid	176,725
Recognized amounts of identifiable assets acquired and (liabilities) assumed, at fair value:
Cash and short-term investments	110,774
Investment securities	143,368
Loans held for sale	1,005
Loans, net	1,302,739
Premises and equipment	16,947
Core deposit intangibles	17,980
Deferred tax assets, net	17,236
Goodwill and other intangibles	0
Other assets	60,307
Deposits	(1,334,848)
Borrowings	(153,009)
Other liabilities	(42,153)
Total identifiable net assets	140,346
Goodwill	36,379
Fair Value Adjustments
Cash and short-term investments	0
Investment securities	(1,261)
Loans held for sale	0
Loans, net	(29,388)
Premises and equipment	(2,092)
Core deposit intangibles	17,980
Deferred tax assets, net	10,607
Goodwill and other intangibles	(16,063)
Other assets	(341)
Deposits	(7,733)
Borrowings	1,717
Other liabilities	(8,166)
Total identifiable net assets	(34,740)
Fair value adjustments, write-off in allowance for loan and lease losses		$ 15,600
Acquired credit impaired loans	55,754
Impaired loans, fair value	32,100
Fair value adjustments, impaired loans		4,200
Financing receivable not considered impaired at time of acquisition	1,290,000
Financing receivable not considered impaired at time of acquisition, fair value	$ 1,270,000
Fair value adjustments, financing receivable not considered impaired at time of acquisition		6,700
Fair value adjustments, land		1,100
Fair value adjustments, furniture, fixtures, and equipment		1,000
Acquired finite-lived intangible assets, estimated useful life	10 years
Acquired deposits, estimated useful life	11 months
Fair value adjustments, borrowings		800
Fair value adjustments, SI Capital Trust II		900
Fair value adjustments, post-retirement liabilities		7,600
Fair value adjustments, bank-owned life insurance liabilities		800
Fair value adjustments, unfunded commitment reserve		$ 400
As Acquired | SI Financial Group, Inc.
Recognized amounts of identifiable assets acquired and (liabilities) assumed, at fair value:
Cash and short-term investments	$ 110,774
Investment securities	144,629
Loans held for sale	1,005
Loans, net	1,332,127
Premises and equipment	19,039
Core deposit intangibles	0
Deferred tax assets, net	6,629
Goodwill and other intangibles	16,063
Other assets	60,648
Deposits	(1,327,115)
Borrowings	(154,726)
Other liabilities	(33,987)
Total identifiable net assets	$ 175,086

DISCONTINUED OPERATIONS - Asset

DISCONTINUED OPERATIONS - Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets
Total assets	$ 242,279	$ 114,259
Liabilities
Total liabilities	33,614	9,597
First Choice Loan Services, Inc. | Discontinued Operations, Held-for-sale
Assets
Loans held for sale, at fair value	209,205	94,050
Premises and equipment, net	1,561	1,867
Other assets	31,513	18,342
Total assets	242,279	114,259
Liabilities
Other liabilities	33,614	9,597
Total liabilities	$ 33,614	$ 9,597

ACQUISITIONS - Provisional Info

ACQUISITIONS - Provisional Information about the Savings Institute Acquired Loan Portfolio (Details) - USD ($) $ in Thousands	May 17, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Business Acquisition [Line Items]
Accretion		$ (2,872)	$ (4,548)	$ (6,470)	$ (14,862)
SI Financial Group, Inc.
Business Acquisition [Line Items]
Gross contractual receivable amounts at acquisition	$ 55,754
Contractual cash flows not expected to be collected (nonaccretable discount)	(19,427)
Expected cash flows at acquisition	36,327
Accretion	(4,200)
Fair value of acquired loans	$ 32,127

DISCONTINUED OPERATIONS - Resul

DISCONTINUED OPERATIONS - Results of Discontinued Operation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes	$ 2,747	$ (1,147)	$ 3,975	$ (883)
Income tax expense	790	(305)	1,161	(238)
Net income/(loss) from discontinued operations	1,957	(842)	2,814	(645)
First Choice Loan Services, Inc. | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest income	1,765	1,622	4,627	4,111
Interest expense	1,030	666	2,676	1,613
Net interest income	735	956	1,951	2,498
Non-interest income	15,055	9,246	37,114	30,281
Total net revenue	15,790	10,202	39,065	32,779
Non-interest expense	13,043	11,349	35,090	33,662
Income from discontinued operations before income taxes	2,747	(1,147)	3,975	(883)
Income tax expense	790	(305)	1,161	(238)
Net income/(loss) from discontinued operations	$ 1,957	$ (842)	$ 2,814	$ (645)

ACQUISITIONS - Pro Forma Inform

ACQUISITIONS - Pro Forma Information (Details) - SI Financial Group, Inc. - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Business Acquisition [Line Items]
Net interest income	$ 292,495	$ 305,643
Non-interest income	65,138	67,181
Income available to common shareholders	$ 83,557	$ 105,233

TRADING SECURITY (Details)

TRADING SECURITY (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Amortized cost	$ 9,600	$ 10,100
Trading security, at fair value	$ 11,145	$ 11,212

SECURITIES AVAILABLE FOR SALE_3

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES - Summary of Securities Available for Sale and Held to Maturity (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Securities available for sale
Amortized Cost	$ 1,350,765	$ 1,421,273
Gross Unrealized Gains	20,491	4,065
Gross Unrealized Losses	(1,652)	(25,691)
Securities available for sale, at fair value	1,369,604	1,399,647
Securities held to maturity
Amortized Cost	364,675	373,763
Gross Unrealized Gains	17,892	4,124
Gross Unrealized Losses	(1,134)	(6,663)
Fair Value	381,433	371,224
Marketable equity securities, amortized cost	55,767	55,471
Marketable equity securities, gross unrealized gains	5,149	4,370
Marketable equity securities, gross unrealized losses	(1,320)	(3,203)
Marketable equity securities, fair value	59,596	56,638
Total, amortized cost basis	1,771,207	1,850,507
Total, gross unrealized gain	43,532	12,559
Total, gross unrealized loss	(4,106)	(35,557)
Total, fair value	1,810,633	1,827,509
Municipal bonds and obligations
Securities available for sale
Amortized Cost	110,482	109,648
Gross Unrealized Gains	6,299	2,272
Gross Unrealized Losses	0	(713)
Securities available for sale, at fair value	116,781	111,207
Securities held to maturity
Amortized Cost	258,494	264,524
Gross Unrealized Gains	13,838	3,569
Gross Unrealized Losses	(3)	(3,601)
Fair Value	272,329	264,492
Agency collateralized mortgage obligations
Securities available for sale
Amortized Cost	834,532	944,946
Gross Unrealized Gains	9,548	1,130
Gross Unrealized Losses	(228)	(15,192)
Securities available for sale, at fair value	843,852	930,884
Securities held to maturity
Amortized Cost	70,314	71,637
Gross Unrealized Gains	3,620	533
Gross Unrealized Losses	(36)	(778)
Fair Value	73,898	71,392
Agency mortgage-backed securities
Securities available for sale
Amortized Cost	173,304	175,406
Gross Unrealized Gains	1,358	36
Gross Unrealized Losses	(446)	(5,121)
Securities available for sale, at fair value	174,216	170,321
Securities held to maturity
Amortized Cost	6,439	7,219
Gross Unrealized Gains	30	0
Gross Unrealized Losses	0	(297)
Fair Value	6,469	6,922
Agency commercial mortgage-backed securities
Securities available for sale
Amortized Cost	60,567	62,200
Gross Unrealized Gains	548	0
Gross Unrealized Losses	(144)	(3,275)
Securities available for sale, at fair value	60,971	58,925
Securities held to maturity
Amortized Cost	10,369	10,417
Gross Unrealized Gains	179	0
Gross Unrealized Losses	0	(289)
Fair Value	10,548	10,128
Corporate bonds
Securities available for sale
Amortized Cost	128,268	120,718
Gross Unrealized Gains	1,585	593
Gross Unrealized Losses	(832)	(1,355)
Securities available for sale, at fair value	129,021	119,956
Tax advantaged economic development bonds
Securities held to maturity
Amortized Cost	18,760	19,718
Gross Unrealized Gains	225	22
Gross Unrealized Losses	(1,095)	(1,698)
Fair Value	17,890	18,042
Other bonds and obligations
Securities available for sale
Amortized Cost	43,612	8,355
Gross Unrealized Gains	1,153	34
Gross Unrealized Losses	(2)	(35)
Securities available for sale, at fair value	44,763	8,354
Securities held to maturity
Amortized Cost	299	248
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 299	$ 248

SECURITIES AVAILABLE FOR SALE_4

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES - Schedule of Maturity of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Available for sale, Amortized Cost
Within 1 year	$ 31,922
Over 1 year to 5 years	26,647
Over 5 years to 10 years	77,205
Over 10 years	146,588
Total bonds and obligations	282,362
Mortgage-backed securities	1,068,403
Amortized Cost	1,350,765	$ 1,421,273
Available for sale, Fair Value
Within 1 year	32,001
Over 1 year to 5 years	26,628
Over 5 years to 10 years	78,590
Over 10 years	153,346
Total bonds and obligations	290,565
Mortgage-backed securities	1,079,039
Fair Value	1,369,604	1,399,647
Held to maturity, Amortized Cost
Within 1 year	7,124
Over 1 year to 5 years	14,213
Over 5 years to 10 years	10,897
Over 10 years	245,319
Total bonds and obligations	277,553
Mortgage-backed securities	87,122
Amortized Cost	364,675	373,763
Held to maturity, Fair Value
Within 1 year	7,124
Over 1 year to 5 years	14,361
Over 5 years to 10 years	10,970
Over 10 years	258,063
Total bonds and obligations	290,518
Mortgage-backed securities	90,915
Fair Value	$ 381,433	$ 371,224

SECURITIES AVAILABLE FOR SALE_5

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)security	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)security	Sep. 30, 2018USD ($)
Investment Holdings [Line Items]
Proceeds from sale of available-for-sale securities | $	$ 0	$ 500,000	$ 82,978,000	$ 499,000
Debt securities, available-for-sale, realized gain | $		6,000	11,000	6,000
Debt securities, available-for-sale, realized loss | $		$ 0	$ 7,000	$ 0
Agency collateralized mortgage obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	33		33
Available for sale securities portfolio, number of securities			251
Available for sale securities, continuous unrealized loss position, aggregate losses			0.40%
Held-to-maturity, securities in unrealized loss positions	1		1
Held-to-maturity securities portfolio, number of securities	9		9
Held to maturity securities, continuous unrealized loss position, aggregate losses			0.30%
Mortgage-backed securities
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	23		23
Available for sale securities portfolio, number of securities			97
Available for sale securities, continuous unrealized loss position, aggregate losses			0.80%
Corporate bonds
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	10		10
Available for sale securities portfolio, number of securities			25
Available for sale securities, continuous unrealized loss position, aggregate losses			1.20%
Other bonds and obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	5		5
Available for sale securities portfolio, number of securities			10
Available for sale securities, continuous unrealized loss position, aggregate losses			0.10%
Municipal bonds and obligations
Investment Holdings [Line Items]
Held-to-maturity, securities in unrealized loss positions	1		1
Held-to-maturity securities portfolio, number of securities	209		209
Held to maturity securities, continuous unrealized loss position, aggregate losses			0.40%
Tax advantaged economic development bonds
Investment Holdings [Line Items]
Held-to-maturity, securities in unrealized loss positions	1		1
Held-to-maturity securities portfolio, number of securities	5		5
Held to maturity securities, continuous unrealized loss position, aggregate losses			13.80%

SECURITIES AVAILABLE FOR SALE_6

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES - Summary of Securities with Unrealized Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, less than twelve months, gross unrealized losses	$ 414	$ 1,576
Available for sale securities, over twelve months, gross unrealized losses	1,238	24,115
Available for sale securities, continuous unrealized loss position, accumulated loss	1,652	25,691
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	105,605	130,805
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	97,686	992,767
Available for sale securities, continuous unrealized loss position, fair value	203,291	1,123,572
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, accumulated loss	39	192
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	1,095	6,471
Held to maturity securities, accumulated unrecognized holding loss	1,134	6,663
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Held to maturity securities, accumulated unrecognized holding loss, less than twelve months, fair value	11,179	25,674
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	6,819	170,459
Held to maturity securities, accumulated unrecognized holding loss, fair value	17,998	196,133
Securities available for sale and held to maturity
Held to maturity and available for sale securities continuous unrealized loss position, less than twelve months, aggregate losses	453	1,768
Held to maturity and available for sale securities continuous unrealized loss position, less than twelve months, fair value	116,784	156,479
Held to maturity and available for sale securities continuous unrealized loss position, over twelve months, aggregate losses	2,333	30,586
Held to maturity and available for sale securities continuous unrealized loss position, over twelve months, fair value	104,505	1,163,226
Held to maturity and available for sale securities continuous unrealized loss position, aggregate losses	2,786	32,354
Held to maturity and available for sale securities continuous unrealized loss position, fair value	221,289	1,319,705
Municipal bonds and obligations
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, less than twelve months, gross unrealized losses	0	55
Available for sale securities, over twelve months, gross unrealized losses	0	658
Available for sale securities, continuous unrealized loss position, accumulated loss	0	713
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	0	3,186
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	0	11,787
Available for sale securities, continuous unrealized loss position, fair value	0	14,973
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, accumulated loss	3	127
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	0	3,474
Held to maturity securities, accumulated unrecognized holding loss	3	3,601
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Held to maturity securities, accumulated unrecognized holding loss, less than twelve months, fair value	802	17,596
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	0	103,759
Held to maturity securities, accumulated unrecognized holding loss, fair value	802	121,355
Agency collateralized mortgage obligations
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, less than twelve months, gross unrealized losses	128	76
Available for sale securities, over twelve months, gross unrealized losses	100	15,116
Available for sale securities, continuous unrealized loss position, accumulated loss	228	15,192
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	47,441	39,114
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	15,642	755,528
Available for sale securities, continuous unrealized loss position, fair value	63,083	794,642
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, accumulated loss	36	0
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	0	778
Held to maturity securities, accumulated unrecognized holding loss	36	778
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Held to maturity securities, accumulated unrecognized holding loss, less than twelve months, fair value	10,377	0
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	0	43,138
Held to maturity securities, accumulated unrecognized holding loss, fair value	10,377	43,138
Agency mortgage-backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, less than twelve months, gross unrealized losses	51	53
Available for sale securities, over twelve months, gross unrealized losses	395	5,068
Available for sale securities, continuous unrealized loss position, accumulated loss	446	5,121
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	18,487	5,500
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	31,003	162,439
Available for sale securities, continuous unrealized loss position, fair value	49,490	167,939
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, accumulated loss	0	0
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	0	297
Held to maturity securities, accumulated unrecognized holding loss	0	297
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Held to maturity securities, accumulated unrecognized holding loss, less than twelve months, fair value	0	0
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	0	6,922
Held to maturity securities, accumulated unrecognized holding loss, fair value	0	6,922
Agency commercial mortgage-backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, less than twelve months, gross unrealized losses	32	44
Available for sale securities, over twelve months, gross unrealized losses	112	3,231
Available for sale securities, continuous unrealized loss position, accumulated loss	144	3,275
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	9,459	1,503
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	11,450	57,422
Available for sale securities, continuous unrealized loss position, fair value	20,909	58,925
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, accumulated loss		0
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses		289
Held to maturity securities, accumulated unrecognized holding loss		289
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Held to maturity securities, accumulated unrecognized holding loss, less than twelve months, fair value		0
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value		10,128
Held to maturity securities, accumulated unrecognized holding loss, fair value		10,128
Corporate bonds
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, less than twelve months, gross unrealized losses	202	1,348
Available for sale securities, over twelve months, gross unrealized losses	630	7
Available for sale securities, continuous unrealized loss position, accumulated loss	832	1,355
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	28,885	81,502
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	37,547	2,561
Available for sale securities, continuous unrealized loss position, fair value	66,432	84,063
Other bonds and obligations
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, less than twelve months, gross unrealized losses	1	0
Available for sale securities, over twelve months, gross unrealized losses	1	35
Available for sale securities, continuous unrealized loss position, accumulated loss	2	35
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	1,333	0
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	2,044	3,030
Available for sale securities, continuous unrealized loss position, fair value	3,377	3,030
Tax advantaged economic development bonds
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, accumulated loss	0	65
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	1,095	1,633
Held to maturity securities, accumulated unrecognized holding loss	1,095	1,698
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Held to maturity securities, accumulated unrecognized holding loss, less than twelve months, fair value	0	8,078
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	6,819	6,512
Held to maturity securities, accumulated unrecognized holding loss, fair value	$ 6,819	$ 14,590

LOANS - Narrative (Details)

LOANS - Narrative (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019USD ($)contract	Sep. 30, 2018contract	Sep. 30, 2019USD ($)contract	Sep. 30, 2018USD ($)contract	Dec. 31, 2018USD ($)
Modifications that Subsequently Defaulted
Reclass of aircraft and HOA loan portfolios to held-for-sale			$ 205,557,000	$ 0
Total loans	$ 9,718,641,000		$ 9,718,641,000		$ 9,043,253,000
Borrower's sustained repayment performance period			6 months
Number of contracts | contract	1	0	1	2
Process of foreclosure			$ 0		0
Residential mortgages
Modifications that Subsequently Defaulted
Total loans	$ 2,838,657,000		2,838,657,000		2,566,424,000
Aircraft Loans
Modifications that Subsequently Defaulted
Reclass of aircraft and HOA loan portfolios to held-for-sale			169,000,000
Homeowners Association Loans
Modifications that Subsequently Defaulted
Reclass of aircraft and HOA loan portfolios to held-for-sale			29,000,000
Mortgages | Residential mortgages
Modifications that Subsequently Defaulted
Process of foreclosure			7,100,000		3,200,000
Acquired Loans
Modifications that Subsequently Defaulted
Total loans	2,480,186,000		2,480,186,000		1,676,509,000
Acquired credit impaired loans	69,317,000		69,317,000		47,288,000
Certain loans acquired in transfer not accounted for as debt securities, note balance, net	163,900,000		163,900,000		124,000,000
Financing receivable not considered impaired at time of acquisition	2,400,000,000		2,400,000,000		1,600,000,000
Acquired Loans | Residential mortgages
Modifications that Subsequently Defaulted
Total loans	579,846,000		579,846,000		239,126,000
Acquired credit impaired loans	$ 11,654,000		$ 11,654,000		$ 4,888,000

LOANS - Summary of Total Loans

LOANS - Summary of Total Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Modifications that Subsequently Defaulted
Total loans	$ 9,718,641	$ 9,043,253
Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	7,238,455	7,366,744
Acquired Loans
Modifications that Subsequently Defaulted
Total loans	2,480,186	1,676,509
Total commercial loans
Modifications that Subsequently Defaulted
Total loans	5,873,547	5,380,267
Total commercial loans | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	4,140,781	4,102,249
Total commercial loans | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	1,732,766	1,278,018
Commercial real estate
Modifications that Subsequently Defaulted
Total loans	4,028,461	3,400,221
Commercial real estate | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	2,757,251	2,588,711
Commercial real estate | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	1,271,210	811,510
Commercial real estate | Construction
Modifications that Subsequently Defaulted
Total loans	380,332	353,012
Commercial real estate | Construction | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	320,492	327,792
Commercial real estate | Construction | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	59,840	25,220
Commercial real estate | Other commercial real estate
Modifications that Subsequently Defaulted
Total loans	3,648,129	3,047,209
Commercial real estate | Other commercial real estate | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	2,436,759	2,260,919
Commercial real estate | Other commercial real estate | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	1,211,370	786,290
Commercial and industrial loans
Modifications that Subsequently Defaulted
Total loans	1,845,086	1,980,046
Commercial and industrial loans | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	1,383,530	1,513,538
Commercial and industrial loans | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	461,556	466,508
Residential mortgages
Modifications that Subsequently Defaulted
Total loans	2,838,657	2,566,424
Residential mortgages | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	2,258,811	2,327,298
Residential mortgages | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	579,846	239,126
Residential mortgages | Construction
Modifications that Subsequently Defaulted
Total loans	15,057	9,756
Residential mortgages | Construction | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	9,653	9,582
Residential mortgages | Construction | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	5,404	174
Residential mortgages | 1-4 family
Modifications that Subsequently Defaulted
Total loans	2,823,600	2,556,668
Residential mortgages | 1-4 family | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	2,249,158	2,317,716
Residential mortgages | 1-4 family | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	574,442	238,952
Consumer loans
Modifications that Subsequently Defaulted
Total loans	1,006,437	1,096,562
Consumer loans | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	838,863	937,197
Consumer loans | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	167,574	159,365
Consumer loans | Home equity
Modifications that Subsequently Defaulted
Total loans	394,048	376,680
Consumer loans | Home equity | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	278,783	289,961
Consumer loans | Home equity | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	115,265	86,719
Consumer loans | Auto and other
Modifications that Subsequently Defaulted
Total loans	612,389	719,882
Consumer loans | Auto and other | Business Activities Loans
Modifications that Subsequently Defaulted
Total loans	560,080	647,236
Consumer loans | Auto and other | Acquired Loans
Modifications that Subsequently Defaulted
Total loans	$ 52,309	$ 72,646

LOANS - Accretable Yield Activi

LOANS - Accretable Yield Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 5,420	$ 6,304	$ 2,840	$ 11,561
Acquisitions	0	0	4,200	0
Accretion	(2,872)	(4,548)	(6,470)	(14,862)
Net reclassifications from (to) nonaccretable difference	2,066	3,410	4,195	10,460
Payments received, net	(196)	(543)	(356)	(2,455)
Reclassification to TDR			9	0
Disposals			0	(81)
Balance at end of period	$ 4,418	$ 4,623	$ 4,418	$ 4,623

LOANS - Summary of Past Due Loa

LOANS - Summary of Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Total Loans	$ 9,718,641	$ 9,043,253
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Loans	4,028,461	3,400,221
Commercial real estate | Construction
Financing Receivable, Past Due [Line Items]
Total Loans	380,332	353,012
Commercial real estate | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Loans	3,648,129	3,047,209
Commercial and industrial loans
Financing Receivable, Past Due [Line Items]
Total Loans	1,845,086	1,980,046
Residential mortgages
Financing Receivable, Past Due [Line Items]
Total Loans	2,838,657	2,566,424
Residential mortgages | Construction
Financing Receivable, Past Due [Line Items]
Total Loans	15,057	9,756
Residential mortgages | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Loans	2,823,600	2,556,668
Consumer
Financing Receivable, Past Due [Line Items]
Total Loans	1,006,437	1,096,562
Consumer | Home equity
Financing Receivable, Past Due [Line Items]
Total Loans	394,048	376,680
Consumer | Auto and other
Financing Receivable, Past Due [Line Items]
Total Loans	612,389	719,882
Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total Past Due	45,445	42,440
Current	7,193,010	7,324,304
Total Loans	7,238,455	7,366,744
Past Due 90 days and Accruing	6,048	1,063
Business Activities Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	5,617	11,399
Business Activities Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,702	3,500
Business Activities Loans | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	37,126	27,541
Business Activities Loans | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	18,860	20,022
Current	2,738,391	2,568,689
Total Loans	2,757,251	2,588,711
Past Due 90 days and Accruing	5,062	993
Business Activities Loans | Commercial real estate | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	4,794	0
Current	315,698	327,792
Total Loans	320,492	327,792
Past Due 90 days and Accruing	4,794	0
Business Activities Loans | Commercial real estate | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	14,066	20,022
Current	2,422,693	2,240,897
Total Loans	2,436,759	2,260,919
Past Due 90 days and Accruing	268	993
Business Activities Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	471	913
Business Activities Loans | Commercial real estate | 30-59 Days Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial real estate | 30-59 Days Past Due | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	471	913
Business Activities Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1	276
Business Activities Loans | Commercial real estate | 60-89 Days Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial real estate | 60-89 Days Past Due | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	1	276
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	18,388	18,833
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	4,794	0
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	13,594	18,833
Business Activities Loans | Commercial and industrial loans
Financing Receivable, Past Due [Line Items]
Total Past Due	13,282	10,305
Current	1,370,248	1,503,233
Total Loans	1,383,530	1,513,538
Past Due 90 days and Accruing	1	4
Business Activities Loans | Commercial and industrial loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,271	4,694
Business Activities Loans | Commercial and industrial loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	636	975
Business Activities Loans | Commercial and industrial loans | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	11,375	4,636
Business Activities Loans | Residential mortgages
Financing Receivable, Past Due [Line Items]
Total Past Due	4,650	4,690
Current	2,254,161	2,322,608
Total Loans	2,258,811	2,327,298
Past Due 90 days and Accruing	873	66
Business Activities Loans | Residential mortgages | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	9,653	9,582
Total Loans	9,653	9,582
Past Due 90 days and Accruing	0	0
Business Activities Loans | Residential mortgages | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Past Due	4,650	4,690
Current	2,244,508	2,313,026
Total Loans	2,249,158	2,317,716
Past Due 90 days and Accruing	873	66
Business Activities Loans | Residential mortgages | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	369	1,631
Business Activities Loans | Residential mortgages | 30-59 Days Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Residential mortgages | 30-59 Days Past Due | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Past Due	369	1,631
Business Activities Loans | Residential mortgages | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,225	1,619
Business Activities Loans | Residential mortgages | 60-89 Days Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Residential mortgages | 60-89 Days Past Due | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Past Due	1,225	1,619
Business Activities Loans | Residential mortgages | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,056	1,440
Business Activities Loans | Residential mortgages | 90 Days or Greater Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Residential mortgages | 90 Days or Greater Past Due | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Past Due	3,056	1,440
Business Activities Loans | Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	8,653	7,423
Current	830,210	929,774
Total Loans	838,863	937,197
Past Due 90 days and Accruing	112	0
Business Activities Loans | Consumer | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	1,426	1,566
Current	277,357	288,395
Total Loans	278,783	289,961
Past Due 90 days and Accruing	111	0
Business Activities Loans | Consumer | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	7,227	5,857
Current	552,853	641,379
Total Loans	560,080	647,236
Past Due 90 days and Accruing	1	0
Business Activities Loans | Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,506	4,161
Business Activities Loans | Consumer | 30-59 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	0	618
Business Activities Loans | Consumer | 30-59 Days Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	3,506	3,543
Business Activities Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	840	630
Business Activities Loans | Consumer | 60-89 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	50	15
Business Activities Loans | Consumer | 60-89 Days Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	790	615
Business Activities Loans | Consumer | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4,307	2,632
Business Activities Loans | Consumer | 90 Days or Greater Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	1,376	933
Business Activities Loans | Consumer | 90 Days or Greater Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	2,931	1,699
Acquired Loans
Financing Receivable, Past Due [Line Items]
Total Past Due	19,027	14,227
Acquired Credit Impaired	69,317	47,288
Total Loans	2,480,186	1,676,509
Past Due 90 days and Accruing	919	1,967
Acquired Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	12,090	4,685
Acquired Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	789	1,628
Acquired Loans | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	6,148	7,914
Acquired Loans | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	11,997	7,913
Acquired Credit Impaired	27,758	11,994
Total Loans	1,271,210	811,510
Past Due 90 days and Accruing	645	1,652
Acquired Loans | Commercial real estate | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Credit Impaired	1,403	0
Total Loans	59,840	25,220
Past Due 90 days and Accruing	0	0
Acquired Loans | Commercial real estate | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	11,997	7,913
Acquired Credit Impaired	26,355	11,994
Total Loans	1,211,370	786,290
Past Due 90 days and Accruing	645	1,652
Acquired Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	8,649	2,603
Acquired Loans | Commercial real estate | 30-59 Days Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate | 30-59 Days Past Due | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	8,649	2,603
Acquired Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	199	1,127
Acquired Loans | Commercial real estate | 60-89 Days Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate | 60-89 Days Past Due | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	199	1,127
Acquired Loans | Commercial real estate | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,149	4,183
Acquired Loans | Commercial real estate | 90 Days or Greater Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate | 90 Days or Greater Past Due | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	3,149	4,183
Acquired Loans | Commercial and industrial loans
Financing Receivable, Past Due [Line Items]
Total Past Due	2,671	1,879
Acquired Credit Impaired	29,101	29,539
Total Loans	461,556	466,508
Past Due 90 days and Accruing	214	144
Acquired Loans | Commercial and industrial loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,152	217
Acquired Loans | Commercial and industrial loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	455	147
Acquired Loans | Commercial and industrial loans | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,064	1,515
Acquired Loans | Residential mortgages
Financing Receivable, Past Due [Line Items]
Total Past Due	2,602	2,444
Acquired Credit Impaired	11,654	4,888
Total Loans	579,846	239,126
Past Due 90 days and Accruing	38	75
Acquired Loans | Residential mortgages | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Credit Impaired	0	0
Total Loans	5,404	174
Past Due 90 days and Accruing	0	0
Acquired Loans | Residential mortgages | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Past Due	2,602	2,444
Acquired Credit Impaired	11,654	4,888
Total Loans	574,442	238,952
Past Due 90 days and Accruing	38	75
Acquired Loans | Residential mortgages | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,662	1,382
Acquired Loans | Residential mortgages | 30-59 Days Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Residential mortgages | 30-59 Days Past Due | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Past Due	1,662	1,382
Acquired Loans | Residential mortgages | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	23	144
Acquired Loans | Residential mortgages | 60-89 Days Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Residential mortgages | 60-89 Days Past Due | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Past Due	23	144
Acquired Loans | Residential mortgages | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	917	918
Acquired Loans | Residential mortgages | 90 Days or Greater Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Residential mortgages | 90 Days or Greater Past Due | 1-4 family
Financing Receivable, Past Due [Line Items]
Total Past Due	917	918
Acquired Loans | Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	1,757	1,991
Acquired Credit Impaired	804	867
Total Loans	167,574	159,365
Past Due 90 days and Accruing	22	96
Acquired Loans | Consumer | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	1,310	1,189
Acquired Credit Impaired	559	553
Total Loans	115,265	86,719
Past Due 90 days and Accruing	22	0
Acquired Loans | Consumer | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	447	802
Acquired Credit Impaired	245	314
Total Loans	52,309	72,646
Past Due 90 days and Accruing	0	96
Acquired Loans | Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	627	483
Acquired Loans | Consumer | 30-59 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	472	290
Acquired Loans | Consumer | 30-59 Days Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	155	193
Acquired Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	112	210
Acquired Loans | Consumer | 60-89 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	78	148
Acquired Loans | Consumer | 60-89 Days Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	34	62
Acquired Loans | Consumer | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,018	1,298
Acquired Loans | Consumer | 90 Days or Greater Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	760	751
Acquired Loans | Consumer | 90 Days or Greater Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 258	$ 547

LOANS - Summary Information Per

LOANS - Summary Information Pertaining to Non-accrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Non-accrual loans
Non-accrual loans	$ 36,307	$ 32,425
Business Activities Loans
Non-accrual loans
Non-accrual loans	31,078	26,478
Acquired Loans
Non-accrual loans
Non-accrual loans	5,229	5,947
Commercial real estate
Non-accrual loans
Non-accrual loans	15,830	20,371
Commercial real estate | Business Activities Loans
Non-accrual loans
Non-accrual loans	13,326	17,840
Commercial real estate | Acquired Loans
Non-accrual loans
Non-accrual loans	2,504	2,531
Commercial real estate | Construction
Non-accrual loans
Non-accrual loans	0	0
Commercial real estate | Construction | Business Activities Loans
Non-accrual loans
Non-accrual loans	0	0
Commercial real estate | Construction | Acquired Loans
Non-accrual loans
Non-accrual loans	0	0
Commercial real estate | Other commercial real estate
Non-accrual loans
Non-accrual loans	15,830	20,371
Commercial real estate | Other commercial real estate | Business Activities Loans
Non-accrual loans
Non-accrual loans	13,326	17,840
Commercial real estate | Other commercial real estate | Acquired Loans
Non-accrual loans
Non-accrual loans	2,504	2,531
Commercial and industrial loans
Non-accrual loans
Non-accrual loans	12,224	6,003
Commercial and industrial loans | Business Activities Loans
Non-accrual loans
Non-accrual loans	11,374	4,632
Commercial and industrial loans | Acquired Loans
Non-accrual loans
Non-accrual loans	850	1,371
Residential mortgages
Non-accrual loans
Non-accrual loans	3,062	2,217
Residential mortgages | Business Activities Loans
Non-accrual loans
Non-accrual loans	2,183	1,374
Residential mortgages | Acquired Loans
Non-accrual loans
Non-accrual loans	879	843
Residential mortgages | Construction
Non-accrual loans
Non-accrual loans	0	0
Residential mortgages | Construction | Business Activities Loans
Non-accrual loans
Non-accrual loans	0	0
Residential mortgages | Construction | Acquired Loans
Non-accrual loans
Non-accrual loans	0	0
Residential mortgages | 1-4 family
Non-accrual loans
Non-accrual loans	3,062	2,217
Residential mortgages | 1-4 family | Business Activities Loans
Non-accrual loans
Non-accrual loans	2,183	1,374
Residential mortgages | 1-4 family | Acquired Loans
Non-accrual loans
Non-accrual loans	879	843
Consumer
Non-accrual loans
Non-accrual loans	5,191	3,834
Consumer | Business Activities Loans
Non-accrual loans
Non-accrual loans	4,195	2,632
Consumer | Acquired Loans
Non-accrual loans
Non-accrual loans	996	1,202
Consumer | Home equity
Non-accrual loans
Non-accrual loans	2,003	1,684
Consumer | Home equity | Business Activities Loans
Non-accrual loans
Non-accrual loans	1,265	933
Consumer | Home equity | Acquired Loans
Non-accrual loans
Non-accrual loans	738	751
Consumer | Auto and other
Non-accrual loans
Non-accrual loans	3,188	2,150
Consumer | Auto and other | Business Activities Loans
Non-accrual loans
Non-accrual loans	2,930	1,699
Consumer | Auto and other | Acquired Loans
Non-accrual loans
Non-accrual loans	$ 258	$ 451

LOANS - Loans Evaluated for Imp

LOANS - Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans receivable: balance at end of period
Total Loans	$ 9,718,641	$ 9,043,253
Commercial real estate
Loans receivable: balance at end of period
Total Loans	4,028,461	3,400,221
Commercial and industrial loans
Loans receivable: balance at end of period
Total Loans	1,845,086	1,980,046
Residential mortgages
Loans receivable: balance at end of period
Total Loans	2,838,657	2,566,424
Consumer
Loans receivable: balance at end of period
Total Loans	1,006,437	1,096,562
Business Activities Loans
Loans receivable: balance at end of period
Individually evaluated for impairment	30,706	28,601
Collectively evaluated for impairment	7,207,749	7,338,143
Total Loans	7,238,455	7,366,744
Business Activities Loans | Commercial real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	18,009	23,345
Collectively evaluated for impairment	2,739,242	2,565,366
Total Loans	2,757,251	2,588,711
Business Activities Loans | Commercial and industrial loans
Loans receivable: balance at end of period
Individually evaluated for impairment	9,370	2,825
Collectively evaluated for impairment	1,374,160	1,510,713
Total Loans	1,383,530	1,513,538
Business Activities Loans | Residential mortgages
Loans receivable: balance at end of period
Individually evaluated for impairment	2,685	2,089
Collectively evaluated for impairment	2,256,126	2,325,209
Total Loans	2,258,811	2,327,298
Business Activities Loans | Consumer
Loans receivable: balance at end of period
Individually evaluated for impairment	642	342
Collectively evaluated for impairment	838,221	936,855
Total Loans	838,863	937,197
Acquired Loans
Loans receivable: balance at end of period
Individually evaluated for impairment	4,040	5,751
Purchased credit-impaired loans	69,317	47,288
Collectively evaluated for impairment	2,406,829	1,623,470
Total Loans	2,480,186	1,676,509
Acquired Loans | Commercial real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	2,813	3,980
Purchased credit-impaired loans	27,758	11,994
Collectively evaluated for impairment	1,240,639	795,536
Total Loans	1,271,210	811,510
Acquired Loans | Commercial and industrial loans
Loans receivable: balance at end of period
Individually evaluated for impairment	336	763
Purchased credit-impaired loans	29,101	29,539
Collectively evaluated for impairment	432,119	436,206
Total Loans	461,556	466,508
Acquired Loans | Residential mortgages
Loans receivable: balance at end of period
Individually evaluated for impairment	375	362
Purchased credit-impaired loans	11,654	4,888
Collectively evaluated for impairment	567,817	233,876
Total Loans	579,846	239,126
Acquired Loans | Consumer
Loans receivable: balance at end of period
Individually evaluated for impairment	516	646
Purchased credit-impaired loans	804	867
Collectively evaluated for impairment	166,254	157,852
Total Loans	$ 167,574	$ 159,365

LOANS - Summary of Impaired Loa

LOANS - Summary of Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Business Activities Loans
Recorded Investment
Total	$ 30,710	$ 28,556
Unpaid Principal Balance
Total	53,325	38,090
Related Allowance
With an allowance recorded	248	197
Business Activities Loans | Commercial real estate
Recorded Investment
Total	18,029	23,272
Unpaid Principal Balance
Total	32,566	31,708
Related Allowance
With an allowance recorded	7	9
Business Activities Loans | Commercial real estate | Other commercial real estate
Recorded Investment
With no related allowance	17,542	22,606
With an allowance recorded	487	666
Unpaid Principal Balance
With no related allowance	32,064	31,038
With an allowance recorded	502	670
Related Allowance
With an allowance recorded	7	9
Business Activities Loans | Commercial and industrial loans
Recorded Investment
With no related allowance	5,002	1,584
With an allowance recorded	4,314	1,251
Total	9,316	2,835
Unpaid Principal Balance
With no related allowance	10,151	2,566
With an allowance recorded	6,671	1,235
Total	16,822	3,801
Related Allowance
With an allowance recorded	88	49
Business Activities Loans | Residential mortgages
Recorded Investment
Total	2,717	2,106
Unpaid Principal Balance
Total	3,072	2,220
Related Allowance
With an allowance recorded	109	128
Business Activities Loans | Residential mortgages | 1-4 Family
Recorded Investment
With no related allowance	376	443
With an allowance recorded	2,341	1,663
Unpaid Principal Balance
With no related allowance	439	441
With an allowance recorded	2,633	1,779
Related Allowance
With an allowance recorded	109	128
Business Activities Loans | Consumer
Recorded Investment
Total	648	343
Unpaid Principal Balance
Total	865	361
Related Allowance
With an allowance recorded	44	11
Business Activities Loans | Consumer | Other commercial real estate
Recorded Investment
With no related allowance	0	0
With an allowance recorded	10	13
Unpaid Principal Balance
With no related allowance	0	0
With an allowance recorded	10	13
Related Allowance
With an allowance recorded	1	1
Business Activities Loans | Consumer | Home equity
Recorded Investment
With no related allowance	34	230
With an allowance recorded	604	100
Unpaid Principal Balance
With no related allowance	239	242
With an allowance recorded	616	106
Related Allowance
With an allowance recorded	43	10
Acquired Loans
Recorded Investment
Total	4,043	5,758
Unpaid Principal Balance
Total	7,495	9,523
Related Allowance
With an allowance recorded	128	97
Acquired Loans | Commercial real estate
Recorded Investment
Total	2,813	3,980
Unpaid Principal Balance
Total	5,626	6,906
Related Allowance
With an allowance recorded	113	9
Acquired Loans | Commercial real estate | Other commercial real estate
Recorded Investment
With no related allowance		3,055
With an allowance recorded		925
Unpaid Principal Balance
With no related allowance		5,959
With an allowance recorded		947
Related Allowance
With an allowance recorded		9
Acquired Loans | Commercial and industrial loans
Recorded Investment
With no related allowance	307	538
With an allowance recorded	28	228
Total	335	766
Unpaid Principal Balance
With no related allowance	500	644
With an allowance recorded	30	232
Total	530	876
Related Allowance
With an allowance recorded	1	4
Acquired Loans | Commercial and industrial loans | Other commercial real estate
Recorded Investment
With no related allowance	1,453
With an allowance recorded	1,360
Unpaid Principal Balance
With no related allowance	4,254
With an allowance recorded	1,372
Related Allowance
With an allowance recorded	113
Acquired Loans | Residential mortgages
Recorded Investment
Total	379	365
Unpaid Principal Balance
Total	405	441
Related Allowance
With an allowance recorded	8	36
Acquired Loans | Residential mortgages | 1-4 Family
Recorded Investment
With no related allowance	293	271
With an allowance recorded	86	94
Unpaid Principal Balance
With no related allowance	294	324
With an allowance recorded	111	117
Related Allowance
With an allowance recorded	8	36
Acquired Loans | Consumer
Recorded Investment
Total	516	647
Unpaid Principal Balance
Total	934	1,300
Related Allowance
With an allowance recorded	6	48
Acquired Loans | Consumer | Other commercial real estate
Recorded Investment
With no related allowance	0	0
With an allowance recorded	40	43
Unpaid Principal Balance
With no related allowance	0	11
With an allowance recorded	38	40
Related Allowance
With an allowance recorded	5	7
Acquired Loans | Consumer | Home equity
Recorded Investment
With no related allowance	426	399
With an allowance recorded	50	205
Unpaid Principal Balance
With no related allowance	846	1,053
With an allowance recorded	50	196
Related Allowance
With an allowance recorded	$ 1	$ 41

LOANS - Average Recorded Invest

LOANS - Average Recorded Investment and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Business Activities Loans
Modifications that Subsequently Defaulted
Average Recorded Investment	$ 29,529	$ 32,478
Cash Basis Interest Income Recognized	1,296	873
Business Activities Loans | Other commercial real estate loans
Modifications that Subsequently Defaulted
Average Recorded Investment	20,777	25,692
Cash Basis Interest Income Recognized	306	337
Business Activities Loans | Other commercial real estate loans | Other
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	20,232	24,277
Cash basis interest income recognized, with no related allowance	289	277
Average recorded investment with related allowance	545	1,415
Cash basis interest income recognized, with related allowance	17	60
Business Activities Loans | Commercial and industrial loans
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	2,842	2,451
Cash basis interest income recognized, with no related allowance	395	343
Average recorded investment with related allowance	3,053	1,395
Cash basis interest income recognized, with related allowance	453	111
Average Recorded Investment	5,895	3,846
Cash Basis Interest Income Recognized	848	454
Business Activities Loans | Residential mortgages
Modifications that Subsequently Defaulted
Average Recorded Investment	2,415	2,084
Cash Basis Interest Income Recognized	116	69
Business Activities Loans | Residential mortgages | 1-4 Family
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	380	683
Cash basis interest income recognized, with no related allowance	15	22
Average recorded investment with related allowance	2,035	1,401
Cash basis interest income recognized, with related allowance	101	47
Business Activities Loans | Consumer
Modifications that Subsequently Defaulted
Average Recorded Investment	442	856
Cash Basis Interest Income Recognized	26	13
Business Activities Loans | Consumer | Other
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	0	0
Cash basis interest income recognized, with no related allowance	0	0
Average recorded investment with related allowance	11	15
Cash basis interest income recognized, with related allowance	0	1
Business Activities Loans | Consumer | Home equity
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	164	797
Cash basis interest income recognized, with no related allowance	2	10
Average recorded investment with related allowance	267	44
Cash basis interest income recognized, with related allowance	24	2
Acquired Loans
Modifications that Subsequently Defaulted
Average Recorded Investment	3,708	7,915
Cash Basis Interest Income Recognized	174	356
Acquired Loans | Other commercial real estate loans
Modifications that Subsequently Defaulted
Average Recorded Investment	2,368	5,579
Cash Basis Interest Income Recognized	101	265
Acquired Loans | Other commercial real estate loans | Other
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	1,295	4,354
Cash basis interest income recognized, with no related allowance	55	212
Average recorded investment with related allowance	1,073	1,225
Cash basis interest income recognized, with related allowance	46	53
Acquired Loans | Commercial and industrial loans
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	465	552
Cash basis interest income recognized, with no related allowance	40	40
Average recorded investment with related allowance	29	202
Cash basis interest income recognized, with related allowance	2	32
Average Recorded Investment	494	754
Cash Basis Interest Income Recognized	42	72
Acquired Loans | Residential mortgages
Modifications that Subsequently Defaulted
Average Recorded Investment	313	652
Cash Basis Interest Income Recognized	15	12
Acquired Loans | Residential mortgages | 1-4 Family
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	224	572
Cash basis interest income recognized, with no related allowance	10	6
Average recorded investment with related allowance	89	80
Cash basis interest income recognized, with related allowance	5	6
Acquired Loans | Consumer
Modifications that Subsequently Defaulted
Average Recorded Investment	533	930
Cash Basis Interest Income Recognized	16	7
Acquired Loans | Consumer | Other
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	0	16
Cash basis interest income recognized, with no related allowance	0	1
Average recorded investment with related allowance	42	0
Cash basis interest income recognized, with related allowance	1	0
Acquired Loans | Consumer | Home equity
Modifications that Subsequently Defaulted
Average recorded investment, with no related allowance	441	766
Cash basis interest income recognized, with no related allowance	13	2
Average recorded investment with related allowance	50	148
Cash basis interest income recognized, with related allowance	$ 2	$ 4

LOANS - Recorded Investment and

LOANS - Recorded Investment and Number of Modifications (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)modification	Sep. 30, 2018USD ($)modification	Sep. 30, 2019USD ($)modification	Sep. 30, 2018USD ($)modification
Modifications that Subsequently Defaulted
Number of Modifications | modification	2	1	7	6
Pre-Modification Outstanding Recorded Investment	$ 65	$ 30	$ 685	$ 2,143
Post-Modification Outstanding Recorded Investment	$ 65	$ 30	$ 682	$ 2,072
Commercial real estate
Modifications that Subsequently Defaulted
Number of Modifications | modification	0		2
Pre-Modification Outstanding Recorded Investment	$ 0		$ 145
Post-Modification Outstanding Recorded Investment	$ 0		$ 145
Commercial and industrial loans
Modifications that Subsequently Defaulted
Number of Modifications | modification	0	0	3	4
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 475	$ 1,995
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 472	$ 1,924
Residential mortgages | 1-4 family
Modifications that Subsequently Defaulted
Number of Modifications | modification	2	1	2	2
Pre-Modification Outstanding Recorded Investment	$ 65	$ 30	$ 65	$ 148
Post-Modification Outstanding Recorded Investment	$ 65	$ 30	$ 65	$ 148

LOANS - Modifications that Subs

LOANS - Modifications that Subsequently Defaulted (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)contract	Sep. 30, 2018USD ($)contract	Sep. 30, 2019USD ($)contract	Sep. 30, 2018USD ($)contract
Modifications that Subsequently Defaulted
Number of Contracts	1	0	1	2
Commercial real estate
Modifications that Subsequently Defaulted
Number of Contracts	0	0	0	1,000
Recorded Investment | $	$ 0	$ 0	$ 0	$ 5,992
Commercial and industrial loans
Modifications that Subsequently Defaulted
Number of Contracts	1,000	0	1,000	1,000
Recorded Investment | $	$ 195	$ 0	$ 195	$ 1,065

LOANS - Troubled Debt Restructu

LOANS - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Trouble Debt Restructuring on Financing Receivables [Roll Forward]
Balance at beginning of the period	$ 25,089	$ 33,507	$ 27,415	$ 41,990
Principal payments	(3,876)	(3,567)	(5,664)	(6,718)
TDR status change	0	0	0	0
Other reductions	(1,548)	(1,206)	(2,703)	(8,580)
Newly identified TDRs	65	30	682	2,072
Balance at end of the period	$ 19,730	$ 28,764	$ 19,730	$ 28,764

LOAN LOSS ALLOWANCE - Allowance

LOAN LOSS ALLOWANCE - Allowance Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Activity in the allowance for loan losses
Balance at beginning of period			$ 61,469
Provision/(releases) for loan losses	$ 22,600	$ 6,628	30,068	$ 18,735
Balance at end of period	62,230		62,230
Total	62,230		62,230		$ 62,230		$ 61,469
Business Activities Loans
Activity in the allowance for loan losses
Balance at beginning of period			56,139	45,920
Charged-off loans	23,231	3,901	30,069	9,799
Recoveries on charged-off loans	808	216	1,700	971
Provision/(releases) for loan losses	23,187	6,405	28,426	15,942
Balance at end of period	56,196	53,034	56,196	53,034
Individually evaluated for impairment					248		197
Collectively evaluated for impairment					55,948		55,942
Total	56,196	53,034	56,196	53,034	56,196	$ 55,432	56,139	$ 50,314
Business Activities Loans | Commercial real estate
Activity in the allowance for loan losses
Balance at beginning of period			21,732	16,843
Charged-off loans	3,061	2,964	5,019	4,462
Recoveries on charged-off loans	286	1	561	50
Provision/(releases) for loan losses	3,815	4,406	6,174	8,163
Balance at end of period	23,448	20,594	23,448	20,594
Individually evaluated for impairment					7		9
Collectively evaluated for impairment					23,441		21,723
Total	23,448	20,594	21,732	20,594	23,448	22,408	21,732	19,151
Business Activities Loans | Commercial and industrial loans
Activity in the allowance for loan losses
Balance at beginning of period			16,504	13,850
Charged-off loans	19,315	174	22,171	2,770
Recoveries on charged-off loans	469	60	895	551
Provision/(releases) for loan losses	18,929	493	23,704	3,403
Balance at end of period	18,932	15,034	18,932	15,034
Individually evaluated for impairment					88		49
Collectively evaluated for impairment					18,844		16,455
Total	18,932	15,034	18,932	15,034	18,932	18,849	16,504	14,655
Business Activities Loans | Residential mortgages
Activity in the allowance for loan losses
Balance at beginning of period			10,535	9,420
Charged-off loans	95	35	343	62
Recoveries on charged-off loans	0	108	58	114
Provision/(releases) for loan losses	23	587	(1,488)	618
Balance at end of period	8,762	10,090	8,762	10,090
Individually evaluated for impairment					109		128
Collectively evaluated for impairment					8,653		10,407
Total	8,762	10,090	10,535	9,420	8,762	8,834	10,535	9,430
Business Activities Loans | Consumer
Activity in the allowance for loan losses
Balance at beginning of period			7,368	5,807
Charged-off loans	760	728	2,536	2,505
Recoveries on charged-off loans	53	47	186	256
Provision/(releases) for loan losses	420	919	36	3,758
Balance at end of period	5,054	7,316	5,054	7,316
Individually evaluated for impairment					44		11
Collectively evaluated for impairment					5,010		7,357
Total	5,054	7,316	7,368	7,316	5,054	5,341	7,368	7,078
Acquired Loans
Activity in the allowance for loan losses
Balance at beginning of period			5,330	5,914
Charged-off loans	293	570	2,000	4,183
Recoveries on charged-off loans	190	159	1,062	899
Provision/(releases) for loan losses	(587)	223	1,642	2,793
Balance at end of period	6,034	5,423	6,034	5,423
Individually evaluated for impairment					128		97
Collectively evaluated for impairment					5,906		5,233
Total	6,034	5,423	6,034	5,423	6,034	6,724	5,330	5,611
Acquired Loans | Commercial real estate
Activity in the allowance for loan losses
Balance at beginning of period			3,153	3,856
Charged-off loans	20	119	824	1,831
Recoveries on charged-off loans	36	9	536	274
Provision/(releases) for loan losses	(648)	115	1,065	1,088
Balance at end of period	3,930	3,387	3,930	3,387
Individually evaluated for impairment					113		9
Collectively evaluated for impairment					3,817		3,144
Total	3,930	3,387	3,930	3,856	3,930	4,562	3,153	3,382
Acquired Loans | Commercial and industrial loans
Activity in the allowance for loan losses
Balance at beginning of period			1,064	1,125
Charged-off loans	89	181	460	336
Recoveries on charged-off loans	85	104	311	199
Provision/(releases) for loan losses	20	(41)	(29)	21
Balance at end of period	886	1,009	886	1,009
Individually evaluated for impairment					1		4
Collectively evaluated for impairment					885		1,060
Total	886	1,009	1,064	1,125	886	870	1,064	1,127
Acquired Loans | Residential mortgages
Activity in the allowance for loan losses
Balance at beginning of period			630	598
Charged-off loans	97	25	201	1,078
Recoveries on charged-off loans	52	14	112	50
Provision/(releases) for loan losses	7	(15)	303	1,022
Balance at end of period	844	592	844	592
Individually evaluated for impairment					8		36
Collectively evaluated for impairment					836		594
Total	844	592	844	598	844	882	630	618
Acquired Loans | Consumer
Activity in the allowance for loan losses
Balance at beginning of period			483	335
Charged-off loans	87	245	515	938
Recoveries on charged-off loans	17	32	103	376
Provision/(releases) for loan losses	34	164	303	662
Balance at end of period	374	435	374	435
Individually evaluated for impairment					6		48
Collectively evaluated for impairment					368		435
Total	$ 374	$ 435	$ 483	$ 435	$ 374	$ 410	$ 483	$ 484

LOAN LOSS ALLOWANCE - Narrative

LOAN LOSS ALLOWANCE - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2019USD ($)grade
Credit quality information
Allowance for losses on acquired loans under Subtopic ASC 310-30 | $	$ 6
Acquired Loans
Credit quality information
Number of grades in internal loan rating system (grade)	11
Residential mortgages | Business Activities Loans
Credit quality information
Number of grades in internal loan rating system (grade)	3
Residential mortgages | Business Activities Loans | Pass | Maximum
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	59 days
Residential mortgages | Business Activities Loans | Special mention | Minimum
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	60 days
Residential mortgages | Business Activities Loans | Special mention | Maximum
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	89 days
Residential mortgages | Business Activities Loans | Substandard | Minimum
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	90 days
Consumer | Business Activities Loans | Other
Credit quality information
Number of grades in internal loan rating system (grade)	2
Consumer | Business Activities Loans | Performing | Maximum | Other
Credit quality information
Period within which loans are current, based on which risk rating is assigned (in days)	119 days
Consumer | Business Activities Loans | Nonperforming | Minimum | Other
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	120 days

LOAN LOSS ALLOWANCE - Loans by

LOAN LOSS ALLOWANCE - Loans by Credit Risk Rating (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Credit quality information
Total loans	$ 9,718,641	$ 9,043,253
Special mention
Credit quality information
Total loans	108,407	47,166
Substandard
Credit quality information
Total loans	139,943	109,490
Non-Accrual
Credit quality information
Total loans	36,307	32,425
Classified
Credit quality information
Total loans	176,250	141,915
Criticized
Credit quality information
Total loans	284,657	189,081
Commercial real estate
Credit quality information
Total loans	4,028,461	3,400,221
Commercial real estate | Construction
Credit quality information
Total loans	380,332	353,012
Commercial and industrial loans
Credit quality information
Total loans	1,845,086	1,980,046
Residential mortgages
Credit quality information
Total loans	2,838,657	2,566,424
Residential mortgages | Construction
Credit quality information
Total loans	15,057	9,756
Residential mortgages | 1-4 family
Credit quality information
Total loans	2,823,600	2,556,668
Consumer
Credit quality information
Total loans	1,006,437	1,096,562
Consumer | Home equity
Credit quality information
Total loans	394,048	376,680
Consumer | Auto and other
Credit quality information
Total loans	612,389	719,882
Business Activities Loans
Credit quality information
Total loans	7,238,455	7,366,744
Business Activities Loans | Special mention
Credit quality information
Total loans	96,206	26,333
Business Activities Loans | Substandard
Credit quality information
Total loans	61,952	60,698
Business Activities Loans | Non-Accrual
Credit quality information
Total loans	31,078	26,478
Business Activities Loans | Classified
Credit quality information
Total loans	93,030	87,176
Business Activities Loans | Criticized
Credit quality information
Total loans	189,236	113,509
Business Activities Loans | Commercial real estate
Credit quality information
Total loans	2,757,251	2,588,711
Business Activities Loans | Commercial real estate | Pass
Credit quality information
Total loans	2,668,139	2,525,921
Business Activities Loans | Commercial real estate | Special mention
Credit quality information
Total loans	32,814	9,805
Business Activities Loans | Commercial real estate | Substandard
Credit quality information
Total loans	56,298	52,985
Business Activities Loans | Commercial real estate | Construction
Credit quality information
Total loans	320,492	327,792
Business Activities Loans | Commercial real estate | Construction | Pass
Credit quality information
Total loans	307,085	327,792
Business Activities Loans | Commercial real estate | Construction | Special mention
Credit quality information
Total loans	8,613	0
Business Activities Loans | Commercial real estate | Construction | Substandard
Credit quality information
Total loans	4,794	0
Business Activities Loans | Commercial real estate | Real Estate
Credit quality information
Total loans	2,436,759	2,260,919
Business Activities Loans | Commercial real estate | Real Estate | Pass
Credit quality information
Total loans	2,361,054	2,198,129
Business Activities Loans | Commercial real estate | Real Estate | Special mention
Credit quality information
Total loans	24,201	9,805
Business Activities Loans | Commercial real estate | Real Estate | Substandard
Credit quality information
Total loans	51,504	52,985
Business Activities Loans | Commercial and industrial loans
Credit quality information
Total loans	1,383,530	1,513,538
Business Activities Loans | Commercial and industrial loans | Pass
Credit quality information
Total loans	1,292,835	1,469,139
Business Activities Loans | Commercial and industrial loans | Special mention
Credit quality information
Total loans	61,327	14,279
Business Activities Loans | Commercial and industrial loans | Substandard
Credit quality information
Total loans	27,007	29,176
Business Activities Loans | Commercial and industrial loans | Doubtful
Credit quality information
Total loans	2,361	944
Business Activities Loans | Residential mortgages
Credit quality information
Total loans	2,258,811	2,327,298
Business Activities Loans | Residential mortgages | Pass
Credit quality information
Total loans	2,254,531	2,324,239
Business Activities Loans | Residential mortgages | Special mention
Credit quality information
Total loans	1,225	1,619
Business Activities Loans | Residential mortgages | Substandard
Credit quality information
Total loans	3,055	1,440
Business Activities Loans | Residential mortgages | Construction
Credit quality information
Total loans	9,653	9,582
Business Activities Loans | Residential mortgages | Construction | Pass
Credit quality information
Total loans	9,653	9,582
Business Activities Loans | Residential mortgages | Construction | Special mention
Credit quality information
Total loans	0	0
Business Activities Loans | Residential mortgages | Construction | Substandard
Credit quality information
Total loans	0	0
Business Activities Loans | Residential mortgages | 1-4 family
Credit quality information
Total loans	2,249,158	2,317,716
Business Activities Loans | Residential mortgages | 1-4 family | Pass
Credit quality information
Total loans	2,244,878	2,314,657
Business Activities Loans | Residential mortgages | 1-4 family | Special mention
Credit quality information
Total loans	1,225	1,619
Business Activities Loans | Residential mortgages | 1-4 family | Substandard
Credit quality information
Total loans	3,055	1,440
Business Activities Loans | Consumer
Credit quality information
Total loans	838,863	937,197
Business Activities Loans | Consumer | Performing
Credit quality information
Total loans	834,668	934,565
Business Activities Loans | Consumer | Nonperforming
Credit quality information
Total loans	4,195	2,632
Business Activities Loans | Consumer | Home equity
Credit quality information
Total loans	278,783	289,961
Business Activities Loans | Consumer | Home equity | Performing
Credit quality information
Total loans	277,518	289,028
Business Activities Loans | Consumer | Home equity | Nonperforming
Credit quality information
Total loans	1,265	933
Business Activities Loans | Consumer | Auto and other
Credit quality information
Total loans	560,080	647,236
Business Activities Loans | Consumer | Auto and other | Performing
Credit quality information
Total loans	557,150	645,537
Business Activities Loans | Consumer | Auto and other | Nonperforming
Credit quality information
Total loans	2,930	1,699
Acquired Loans
Credit quality information
Total loans	2,480,186	1,676,509
Acquired Loans | Special mention
Credit quality information
Total loans	12,201	20,833
Acquired Loans | Substandard
Credit quality information
Total loans	77,991	48,792
Acquired Loans | Non-Accrual
Credit quality information
Total loans	5,229	5,947
Acquired Loans | Classified
Credit quality information
Total loans	83,220	54,739
Acquired Loans | Criticized
Credit quality information
Total loans	95,421	75,572
Acquired Loans | Commercial real estate
Credit quality information
Total loans	1,271,210	811,510
Acquired Loans | Commercial real estate | Pass
Credit quality information
Total loans	1,209,449	768,203
Acquired Loans | Commercial real estate | Special mention
Credit quality information
Total loans	5,487	9,086
Acquired Loans | Commercial real estate | Substandard
Credit quality information
Total loans	56,274	34,221
Acquired Loans | Commercial real estate | Construction
Credit quality information
Total loans	59,840	25,220
Acquired Loans | Commercial real estate | Construction | Pass
Credit quality information
Total loans	57,734	24,519
Acquired Loans | Commercial real estate | Construction | Special mention
Credit quality information
Total loans	0	0
Acquired Loans | Commercial real estate | Construction | Substandard
Credit quality information
Total loans	2,106	701
Acquired Loans | Commercial real estate | Real Estate
Credit quality information
Total loans	1,211,370	786,290
Acquired Loans | Commercial real estate | Real Estate | Pass
Credit quality information
Total loans	1,151,715	743,684
Acquired Loans | Commercial real estate | Real Estate | Special mention
Credit quality information
Total loans	5,487	9,086
Acquired Loans | Commercial real estate | Real Estate | Substandard
Credit quality information
Total loans	54,168	33,520
Acquired Loans | Commercial and industrial loans
Credit quality information
Total loans	461,556	466,508
Acquired Loans | Commercial and industrial loans | Pass
Credit quality information
Total loans	434,018	439,602
Acquired Loans | Commercial and industrial loans | Special mention
Credit quality information
Total loans	6,415	11,374
Acquired Loans | Commercial and industrial loans | Substandard
Credit quality information
Total loans	21,123	15,532
Acquired Loans | Residential mortgages
Credit quality information
Total loans	579,846	239,126
Acquired Loans | Residential mortgages | Pass
Credit quality information
Total loans	575,040	235,347
Acquired Loans | Residential mortgages | Special mention
Credit quality information
Total loans	76	144
Acquired Loans | Residential mortgages | Substandard
Credit quality information
Total loans	4,730	3,635
Acquired Loans | Residential mortgages | Construction
Credit quality information
Total loans	5,404	174
Acquired Loans | Residential mortgages | Construction | Pass
Credit quality information
Total loans	5,404	174
Acquired Loans | Residential mortgages | Construction | Special mention
Credit quality information
Total loans	0	0
Acquired Loans | Residential mortgages | Construction | Substandard
Credit quality information
Total loans	0	0
Acquired Loans | Residential mortgages | 1-4 family
Credit quality information
Total loans	574,442	238,952
Acquired Loans | Residential mortgages | 1-4 family | Pass
Credit quality information
Total loans	569,636	235,173
Acquired Loans | Residential mortgages | 1-4 family | Special mention
Credit quality information
Total loans	76	144
Acquired Loans | Residential mortgages | 1-4 family | Substandard
Credit quality information
Total loans	4,730	3,635
Acquired Loans | Consumer
Credit quality information
Total loans	167,574	159,365
Acquired Loans | Consumer | Performing
Credit quality information
Total loans	166,578	158,163
Acquired Loans | Consumer | Nonperforming
Credit quality information
Total loans	996	1,202
Acquired Loans | Consumer | Home equity
Credit quality information
Total loans	115,265	86,719
Acquired Loans | Consumer | Home equity | Performing
Credit quality information
Total loans	114,527	85,968
Acquired Loans | Consumer | Home equity | Nonperforming
Credit quality information
Total loans	738	751
Acquired Loans | Consumer | Auto and other
Credit quality information
Total loans	52,309	72,646
Acquired Loans | Consumer | Auto and other | Performing
Credit quality information
Total loans	52,051	72,195
Acquired Loans | Consumer | Auto and other | Nonperforming
Credit quality information
Total loans	$ 258	$ 451

DEPOSITS (Details)

DEPOSITS (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Deposits [Abstract]
Time less than $100,000	$ 951,233	$ 719,689
Time $100,000 through $250,000	2,335,990	2,060,500
Time more than $250,000	670,498	507,528
Total time deposits	3,957,721	3,287,717
Brokered time deposits	1,500,000	1,400,000
Reciprocal deposits	$ 89,100	$ 84,400

BORROWED FUNDS - Summary of Bor

BORROWED FUNDS - Summary of Borrowed Funds (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Principal, Short-term borrowings	$ 300,000	$ 1,118,832
Principal, Long-term borrowings	701,140	398,984
Total borrowings	$ 1,001,140	$ 1,517,816
Weighted average rate on short-term borrowings	2.25%	2.58%
Weighted average rate on long-term borrowings	2.72%	3.16%
Weighted average rate	2.58%	2.73%
Advances from the FHLB
Debt Instrument [Line Items]
Principal, Short-term borrowings	$ 300,000	$ 1,118,832
Principal, Long-term borrowings	$ 604,149	$ 309,466
Weighted average rate on short-term borrowings	2.25%	2.58%
Weighted average rate on long-term borrowings	2.14%	2.17%
Subordinated borrowings
Debt Instrument [Line Items]
Principal, Long-term borrowings	$ 74,188	$ 74,054
Weighted average rate on long-term borrowings	7.00%	7.00%
Junior subordinated borrowing - Trust I
Debt Instrument [Line Items]
Principal, Long-term borrowings	$ 15,464	$ 15,464
Weighted average rate on long-term borrowings	4.00%	4.50%
Junior subordinated borrowing - Trust II
Debt Instrument [Line Items]
Principal, Long-term borrowings	$ 7,339	$ 0
Weighted average rate on long-term borrowings	3.82%	0.00%

BORROWED FUNDS - Narrative (Det

BORROWED FUNDS - Narrative (Details) - USD ($)	1 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Line of credit, current		$ 3,000,000
Short-term debt		300,000,000	$ 1,118,832,000
Long-term borrowings		701,140,000	398,984,000
Advances from the FHLB
Debt Instrument [Line Items]
Long-term line of credit		0	0
Short-term debt		300,000,000	1,118,832,000
Long-term borrowings		604,149,000	309,466,000
Federal Reserve Bank Advances
Debt Instrument [Line Items]
Short-term debt		0	0
Federal Home Loan Bank Certificates And Obligations F H L B Callable Advances
Debt Instrument [Line Items]
Long-term borrowings		10,000,000
Federal Home Loan Bank Certificates And Obligations F H L B Amortizing Advances
Debt Instrument [Line Items]
Long-term borrowings		4,300,000	1,700,000
Subordinated borrowings
Debt Instrument [Line Items]
Long-term borrowings		74,188,000	74,054,000
Maturity period	15 years
Principal amount of debt issued	$ 75,000,000
Discount rate	1.15%
Fixed interest rate	6.875%
Maturity period with fixed interest rate	10 years
Subordinated borrowings | LIBOR
Debt Instrument [Line Items]
Interest rate margin	5.113%
Unamortized debt issuance expense		$ 368,000	$ 461,000
Junior subordinated borrowing | Trust I
Debt Instrument [Line Items]
Common stock of trust		100.00%
Common stock of trust included in other asset		$ 500,000
Sole asset of trust in form of debt		$ 15,500,000
Variable interest rate		4.00%	4.50%
Period up to which interest payments can be deferred		5 years
Junior subordinated borrowing | Trust II
Debt Instrument [Line Items]
Common stock of trust		100.00%
Common stock of trust included in other asset		$ 200,000
Sole asset of trust in form of debt		$ 8,200,000
Variable interest rate		3.82%
Period up to which interest payments can be deferred		5 years
Junior subordinated borrowing | LIBOR | Trust I
Debt Instrument [Line Items]
Interest rate margin		1.85%
Junior subordinated borrowing | LIBOR | Trust II
Debt Instrument [Line Items]
Interest rate margin		1.70%

BORROWED FUNDS - Summary of Mat

BORROWED FUNDS - Summary of Maturities of FHLB (Details) - Fixed rate advances $ in Thousands	Sep. 30, 2019USD ($)
Principal
2019	$ 190,329
2020	420,301
2021	231,476
2022	42,560
2023 and beyond	19,483
Total FHLB advances	$ 904,149
Weighted Average Rate
Weighted Average Rate
2019	2.29%
2020	2.25%
2021	2.00%
2022	1.98%
2023 and beyond	2.12%
Total FHLB advances	2.18%

DERIVATIVE INSTRUMENTS AND HE_3

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Derivative [Line Items]
Notional amount	$ 4,445,464		$ 4,445,464		$ 3,303,570
Cash collateral pledged	102,800		102,800
Amortized cost of securities pledged as collateral to derivative counterparties	26,400		26,400
Fair value of securities as pledged collateral to derivative counterparties	26,500		26,500
Interest expense	36,854	$ 29,184	110,147	$ 75,765
Commercial counterparties
Derivative [Line Items]
Net asset position	800		800		5,900
Interest rate swaps
Derivative [Line Items]
Notional amount	9,600		9,600
Cash collateral pledged	102,837		102,837		25,412
Derivative liability	106,074		106,074		28,593
Amount of collateral posted for the net liability positions	129,300		129,300		25,400
Interest rate swaps | Commercial counterparties
Derivative [Line Items]
Cash collateral pledged	0		0		0
Net asset position	101,300		101,300		21,200
Derivative liability	112		112		9,745
Interest rate swaps | Institutional counterparties
Derivative [Line Items]
Cash collateral pledged	102,837		102,837		25,412
Derivative liability	105,962		105,962		18,848
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	406,271		406,271		$ 165,079
Economic hedges
Derivative [Line Items]
Notional amount	4,000,000		4,000,000
Credit valuation adjustments	$ 2,200		$ 2,200
Economic hedges | Interest rate swap on tax advantaged economic development bond
Derivative [Line Items]
Fixed rate of interest	5.09%		5.09%
Maturity period			21 years
Economic hedges | Interest rate swaps
Derivative [Line Items]
Notional amount	$ 3,200,000		$ 3,200,000
Economic hedges | Risk participation agreements with dealer banks
Derivative [Line Items]
Notional amount	300,000		300,000
Economic hedges | Forward sale commitments
Derivative [Line Items]
Notional amount	$ 500,000		$ 500,000

DERIVATIVE INSTRUMENTS AND HE_4

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 4,445,464	$ 3,303,570
Estimated fair value asset (liability)	3,072	1,680
Interest rate swaps
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	9,600
Total economic hedges
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	4,000,000
Total economic hedges | Interest rate swaps
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	3,200,000
Total economic hedges | Risk participation agreements with dealer banks
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	300,000
Total economic hedges | Forward sale commitments
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	500,000
Designated as Hedging Instrument | Total economic hedges
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	4,039,193	3,138,491
Estimated fair value asset (liability)	(4,012)	(2,247)
Designated as Hedging Instrument | Total economic hedges | Interest rate swaps | Interest rate swap on tax advantaged economic development bond
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 9,569	$ 10,090
Weighted average maturity	10 years 2 months 12 days	10 years 10 months 24 days
Weighted average rate, received	2.40%	2.72%
Weighted average rate, contract pay rate	5.09%	5.09%
Estimated fair value asset (liability)	$ (1,703)	$ (1,240)
Designated as Hedging Instrument | Total economic hedges | Interest rate swaps | Loans with commercial loan customers
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 1,610,888	$ 1,346,894
Weighted average maturity	6 years 7 months 6 days	6 years 8 months 12 days
Weighted average rate, received	4.42%	4.53%
Weighted average rate, contract pay rate	3.51%	4.04%
Estimated fair value asset (liability)	$ 101,218	$ 11,443
Designated as Hedging Instrument | Total economic hedges | Reverse interest rate swaps | Loans with commercial loan customers
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 1,610,888	$ 1,346,894
Weighted average maturity	6 years 7 months 6 days	6 years 8 months 12 days
Weighted average rate, received	3.51%	4.04%
Weighted average rate, contract pay rate	4.42%	4.53%
Estimated fair value asset (liability)	$ (103,884)	$ (11,953)
Designated as Hedging Instrument | Total economic hedges | Risk participation agreements with dealer banks
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 292,645	$ 243,806
Weighted average maturity	7 years 10 months 24 days	5 years 8 months 12 days
Estimated fair value asset (liability)	$ 411	$ 237
Designated as Hedging Instrument | Total economic hedges | Forward sale commitments
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 515,203	$ 190,807
Weighted average maturity	6 days	6 days
Estimated fair value asset (liability)	$ (54)	$ (734)
Not Designated as Hedging Instrument
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	406,271	165,079
Estimated fair value asset (liability)	7,084	3,927
Not Designated as Hedging Instrument | Commitments to lend
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 406,271	$ 165,079
Weighted average maturity	6 days	6 days
Estimated fair value asset (liability)	$ 7,084	$ 3,927

DERIVATIVE INSTRUMENTS AND HE_5

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Economic Hedges and Non-hedging Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest rate swaps | Economic hedges | Industrial revenue bond
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	$ (120)	$ 142	$ (463)	$ 616
Interest rate swaps | Economic hedges | Loans with commercial loan customers
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	26,975	(4,721)	91,931	(24,660)
(Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income	(872)	60	(2,156)	391
Reverse interest rate swaps | Economic hedges | Loans with commercial loan customers
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	(26,975)	4,721	(91,931)	24,660
Risk participation agreements | Economic hedges
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	68	67	174	90
Forward commitments | Economic hedges
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	1,090	587	680	(980)
Realized gain in discontinued operations	(3,343)	115	(9,142)	5,114
Commitments to lend | Non-hedging derivatives
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	(1,921)	4,924	3,157	18,740
Realized gain in discontinued operations	$ 20,476	$ 3,345	$ 46,189	$ 6,439

DERIVATIVE INSTRUMENTS AND HE_6

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Offsetting of Financial Assets and Derivative Assets (Details) - Interest rate swaps - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	$ 102,135	$ 30,830
Gross amounts offset in the Statements of Condition	(18)	(3,749)
Net amounts of assets presented in the Statements of Condition	102,117	27,081
Gross amounts not offset in the Statements of Condition, financial instruments	0	0
Gross amounts not offset in the Statements of Condition, cash collateral received	0	0
Net Amount	102,117	27,081
Institutional counterparties
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	805	9,485
Gross amounts offset in the Statements of Condition	(18)	(3,592)
Net amounts of assets presented in the Statements of Condition	787	5,893
Gross amounts not offset in the Statements of Condition, financial instruments	0	0
Gross amounts not offset in the Statements of Condition, cash collateral received	0	0
Net Amount	787	5,893
Commercial counterparties
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	101,330	21,345
Gross amounts offset in the Statements of Condition	0	(157)
Net amounts of assets presented in the Statements of Condition	101,330	21,188
Gross amounts not offset in the Statements of Condition, financial instruments	0	0
Gross amounts not offset in the Statements of Condition, cash collateral received	0	0
Net Amount	$ 101,330	$ 21,188

DERIVATIVE INSTRUMENTS AND HE_7

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Offsetting Financial Liabilities and Derivative Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts not offset in the Statements of Condition, cash collateral pledged	$ 102,800
Interest rate swaps
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(106,344)	$ (29,881)
Gross amounts offset in the Statements of Condition	270	1,288
Net amounts of liabilities presented in the Statements of Condition	(106,074)	(28,593)
Gross amounts not offset in the Statements of Condition, financial instruments	26,507	0
Gross amounts not offset in the Statements of Condition, cash collateral pledged	102,837	25,412
Net Amount	23,270	(3,181)
Interest rate swaps | Institutional counterparties
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(106,232)	(19,949)
Gross amounts offset in the Statements of Condition	270	1,101
Net amounts of liabilities presented in the Statements of Condition	(105,962)	(18,848)
Gross amounts not offset in the Statements of Condition, financial instruments	26,507	0
Gross amounts not offset in the Statements of Condition, cash collateral pledged	102,837	25,412
Net Amount	23,382	6,564
Interest rate swaps | Commercial counterparties
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(112)	(9,932)
Gross amounts offset in the Statements of Condition	0	187
Net amounts of liabilities presented in the Statements of Condition	(112)	(9,745)
Gross amounts not offset in the Statements of Condition, financial instruments	0	0
Gross amounts not offset in the Statements of Condition, cash collateral pledged	0	0
Net Amount	$ (112)	$ (9,745)

LEASES - Narrative (Details)

LEASES - Narrative (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2019USD ($)
Lessee, Lease, Description [Line Items]
Operating lease, weighted average discount rate, percent	3.36%	3.36%
Finance lease, weighted average discount rate, percent	5.00%	5.00%
Operating lease, weighted average remaining lease term	10 years 4 months 24 days	10 years 4 months 24 days
Finance lease, weighted average remaining lease term	15 years 1 month 6 days	15 years 1 month 6 days
Operating lease expense	$ 3.7	$ 10.7
Minimum
Lessee, Lease, Description [Line Items]
Lessee, lease, remaining lease term		1 month
Maximum
Lessee, Lease, Description [Line Items]
Lessee, lease, remaining lease term		21 years

LEASES - Assets and Liabilities

LEASES - Assets and Liabilities (Details) $ in Thousands	Sep. 30, 2019USD ($)
Lease Right-of-Use Assets
Operating lease right-of-use assets	$ 78,824
Finance lease right-of-use assets	7,850
Total Lease Right-of-Use Assets	86,674
Lease Liabilities
Operating lease liabilities	83,256
Finance lease liabilities	11,090
Total Lease Liabilities	$ 94,346

LEASES - Supplemental Cash Flow

LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 3,829	$ 10,984
Operating cash flows from finance leases	159	478
Financing cash flows from finance leases	119	315
Right-of-use assets obtained in exchange for lease obligations - operating leases	1,149	88,790
Right-of-use assets obtained in exchange for lease obligations - finance leases	$ 0	$ 0

LEASES - Maturity Analysis of L

LEASES - Maturity Analysis of Lease Liability (Details) $ in Thousands	Sep. 30, 2019USD ($)
Operating Leases
2019	$ 3,624
2020	13,700
2021	12,425
2022	11,207
2023	9,244
Thereafter	48,701
Total undiscounted lease payments	98,901
Less amounts representing interest	(15,645)
Lease liability	83,256
Finance Leases
2019	336
2020	1,031
2021	1,031
2022	1,031
2023	1,037
Thereafter	11,296
Total undiscounted lease payments	15,762
Less amounts representing interest	(4,672)
Lease liability	$ 11,090

CAPITAL RATIOS AND SHAREHOLDE_3

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Actual and Required Capital Ratios (Details)	Sep. 30, 2019	Dec. 31, 2018
Tier 1 capital to risk-weighted assets
Total capital to risk weighted assets	13.00%	13.00%
Common equity tier 1 capital to risk weighted assets	11.50%	11.40%
Tier 1 capital to risk weighted assets	11.70%	11.60%
Tier 1 capital to average assets	9.20%	9.00%
Bank
Tier 1 capital to risk-weighted assets
Total capital to risk weighted assets	12.20%	12.20%
Common equity tier 1 capital to risk weighted assets	11.60%	11.60%
Tier 1 capital to risk weighted assets	11.60%	11.60%
Tier 1 capital to average assets	9.10%	9.00%
Regulatory minimum to be well capitalized, Total capital to risk weighted assets	8.00%	8.00%
Regulatory minimum to be well capitalized, Common equity tier 1 capital to risk weighted assets	4.50%	4.50%
Regulatory minimum to be well capitalized, Tier 1 capital to risk weighted assets	6.00%	6.00%
Regulatory minimum to be well capitalized, Tier 1 capital to average assets	4.00%	4.00%

CAPITAL RATIOS AND SHAREHOLDE_4

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Components of AOCI (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total shareholders’ equity	$ 1,772,224	$ 1,779,837	$ 1,552,918	$ 1,532,315	$ 1,516,241	$ 1,496,264
Accumulated other comprehensive income/(loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total shareholders’ equity	15,880	11,301	(13,470)	(28,647)	(21,266)	4,161
Net unrealized holding gain/(loss) on AFS securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other accumulated comprehensive income (loss), before tax	24,210		(15,267)
Income taxes related to items of accumulated other comprehensive income	(6,313)		3,814
Total shareholders’ equity	17,897	13,318	(11,453)	(26,402)	(19,021)	6,008
Net unrealized holding (loss) on pension plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other accumulated comprehensive income (loss), before tax	(2,753)		(2,753)
Income taxes related to items of accumulated other comprehensive income	736		736
Total shareholders’ equity	$ (2,017)	$ (2,017)	$ (2,017)	$ (2,245)	$ (2,245)	$ (1,847)

CAPITAL RATIOS AND SHAREHOLDE_5

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Components of OCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net unrealized gains (losses) arising during the period
Net of Tax	$ 4,583	$ (7,377)	$ 29,357	$ (27,447)
Less: reclassification adjustment for gains realized in net income
Net of Tax	4	4	7	4
Other comprehensive income (loss)
Before Tax	6,154	(9,929)	39,477	(36,931)
Tax Effect	(1,575)	2,548	(10,127)	9,480
Total other comprehensive income/(loss)	4,579	(7,381)	29,350	(27,451)
Total change to accumulated other comprehensive (loss)
Before Tax				45,310
Tax Effect				12,502
Net of Tax				(32,808)
ASU 2016-01
Less: reclassification related to adoption of ASU
Before Tax				8,379
Tax Effect				(2,126)
Net of Tax				6,253
ASU 2018-02
Less: reclassification related to adoption of ASU
Before Tax				0
Tax Effect				(896)
Net of Tax				(896)
Net unrealized holding gain/(loss) on AFS securities
Net unrealized gains (losses) arising during the period
Before Tax	6,159	(9,923)	39,486	(36,925)
Tax Effect	(1,576)	2,546	(10,129)	9,478
Net of Tax	4,583	(7,377)	29,357	(27,447)
Less: reclassification adjustment for gains realized in net income
Before Tax	5	6	9	6
Tax Effect	(1)	(2)	(2)	(2)
Net of Tax	4	4	7	4
Other comprehensive income (loss)
Before Tax	6,154	(9,929)	39,477	(36,931)
Tax Effect	(1,575)	2,548	(10,127)	9,480
Total other comprehensive income/(loss)	$ 4,579	$ (7,381)	$ 29,350	$ (27,451)

CAPITAL RATIOS AND SHAREHOLDE_6

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Changes in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ 1,779,837	$ 1,516,241	$ 1,552,918	$ 1,496,264
Other comprehensive income (loss) before reclassifications	4,583	(7,377)	29,357	(27,447)
Less: amounts reclassified from accumulated other comprehensive income (loss)	4	4	7	4
Total other comprehensive income/(loss)	4,579	(7,381)	29,350	(27,451)
Balance at end of period	1,772,224	1,532,315	1,772,224	1,532,315
Accumulated other comprehensive income/(loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	11,301	(21,266)	(13,470)	4,161
Total other comprehensive income/(loss)	4,579	(7,381)	29,350	(27,451)
Balance at end of period	15,880	(28,647)	15,880	(28,647)
Net unrealized holding gain/(loss) on AFS securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	13,318	(19,021)	(11,453)	6,008
Other comprehensive income (loss) before reclassifications	4,583	(7,377)	29,357	(27,447)
Less: amounts reclassified from accumulated other comprehensive income (loss)	4	4	7	4
Total other comprehensive income/(loss)	4,579	(7,381)	29,350	(27,451)
Balance at end of period	17,897	(26,402)	17,897	(26,402)
Net unrealized holding (loss) on pension plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(2,017)	(2,245)	(2,017)	(1,847)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Less: amounts reclassified from accumulated other comprehensive income (loss)	0	0	0	0
Total other comprehensive income/(loss)	0	0	0	0
Balance at end of period	$ (2,017)	$ (2,245)	$ (2,017)	(2,245)
Accounting Standards Updates 2016-01 and 2018-02
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Less: amounts reclassified from accumulated other comprehensive income (loss) related to adoption of ASU 2016-01 and ASU 2018-02				5,357
Accounting Standards Updates 2016-01 and 2018-02 | Net unrealized holding gain/(loss) on AFS securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Less: amounts reclassified from accumulated other comprehensive income (loss) related to adoption of ASU 2016-01 and ASU 2018-02				4,959
Accounting Standards Updates 2016-01 and 2018-02 | Net unrealized holding (loss) on pension plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Less: amounts reclassified from accumulated other comprehensive income (loss) related to adoption of ASU 2016-01 and ASU 2018-02				$ 398

CAPITAL RATIOS AND SHAREHOLDE_7

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Amounts Reclassified Out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Amounts reclassified out of each component of accumulated other comprehensive income
Non-interest income	$ 21,406	$ 20,034	$ 60,640	$ 58,549
Tax expense	(4,007)	(9,095)	(16,042)	(24,577)
Income available to common shareholders	22,376	31,997	70,979	90,817
Amount Reclassified From Accumulated Other Comprehensive Income (loss)
Amounts reclassified out of each component of accumulated other comprehensive income
Income available to common shareholders	4	4	7	4
Realized gains on AFS securities | Amount Reclassified From Accumulated Other Comprehensive Income (loss)
Amounts reclassified out of each component of accumulated other comprehensive income
Non-interest income	5	6	9	6
Tax expense	(1)	(2)	(2)	(2)
Income available to common shareholders	$ 4	$ 4	$ 7	$ 4

EARNINGS PER SHARE - Schedule o

EARNINGS PER SHARE - Schedule of Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings per share
Income from continuing operations	$ 20,659	$ 33,069	$ 68,885	$ 92,151
Income from discontinued operations	1,957	(842)	2,814	(645)
Net income	$ 22,616	$ 32,227	$ 71,699	$ 91,506
Average number of common shares issued (in shares)	51,903	46,212	49,068	46,212
Less: average number of treasury shares (in shares)	1,089	790	855	816
Less: average number of unvested stock award shares (in shares)	435	435	410	430
Plus: average participating preferred shares (in shares)	1,043	1,043	1,043	1,043
Average number of basic common shares outstanding (in shares)	51,422	46,030	48,846	46,009
Average number of diluted common shares outstanding (in shares)	51,545	46,263	48,987	46,226
Basic earnings per common share:
Continuing operations (in dollars per share)	$ 0.40	$ 0.72	$ 1.41	$ 2
Discontinued operations (in dollars per share)	0.04	(0.02)	0.06	(0.01)
Total (in dollars per share)	0.44	0.70	1.47	1.99
Diluted earnings per common share:
Continuing operations (in dollars per share)	0.40	0.72	1.40	1.99
Discontinued operations (in dollars per share)	0.04	(0.02)	0.06	(0.01)
Total (in dollars per share)	$ 0.44	$ 0.70	$ 1.46	$ 1.98
Unvested stock award shares
Earnings per share
Plus: dilutive effect of share-based payment arrangements (in shares)	87	202	109	186
Stock options
Earnings per share
Plus: dilutive effect of share-based payment arrangements (in shares)	36	31	32	31

EARNINGS PER SHARE - Narrative

EARNINGS PER SHARE - Narrative (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Unvested stock award shares
Anti-dilutive securities
Securities excluded from the earnings per share calculations (in shares)	296	245
Stock options
Anti-dilutive securities
Securities excluded from the earnings per share calculations (in shares)	60	25

STOCK-BASED COMPENSATION PLAN_2

STOCK-BASED COMPENSATION PLANS - Summary of Activity (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Non-Vested Stock Awards Outstanding
Non-vested Stock Awards Outstanding, Number of Shares
Balance at the beginning of the period (in shares)			371
Granted (in shares)			284
Stock awards vested (in shares)	(3)	(3)	(130)	(153)
Forfeited (in shares)			(59)
Balance at the end of the period (in shares)	466		466
Non-vested Stock Awards Outstanding, Weighted-Average Grant Date Fair Value
Balance at the beginning of the period (in dollars per share)			$ 33.63
Granted (in dollars per share)			29.51
Stock awards vested (in dollars per share)			31.76
Forfeited (in dollars per share)			33.18
Balance at the end of the period (in dollars per share)	$ 32.54		$ 32.54
Stock Options Outstanding
Stock Options Outstanding, Number of Shares
Balance at the beginning of the period (in shares)			31
Granted (in shares)			0
Acquired (in shares)			133
Stock options exercised (in shares)			(6)
Expired (in shares)			0
Balance at the end of the period (in shares)	158		158
Exercisable options at the end of the period (in shares)	158		158
Stock Options Outstanding, Weighted-Average Exercise Price
Balance at the beginning of the period (in dollars per share)			$ 10.82
Granted (in dollars per share)			0
Acquired (in dollars per share)			23.99
Stock options exercised (in dollars per share)			11.40
Expired (in dollars per share)			0
Balance at the end of the period (in dollars per share)	$ 21.02		21.02
Exercisable options at the end of the period (in dollars per share)	$ 21.02		$ 21.02

STOCK-BASED COMPENSATION PLAN_3

STOCK-BASED COMPENSATION PLANS - Narrative (Details) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options			$ 69,000	$ 102,000
Total compensation cost	$ 1,500,000	$ 1,500,000	3,500,000	4,300,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options	$ 55,000	$ 0	$ 69,000	$ 102,000
Non-Vested Stock Awards Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vested (in shares)	3	3	130	153

FAIR VALUE MEASUREMENTS - Measu

FAIR VALUE MEASUREMENTS - Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 1,369,604	$ 1,399,647
Marketable equity securities	59,596	56,638
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,145	11,212
Securities available for sale	1,369,604	1,399,647
Marketable equity securities	59,596	56,638
Loans held for sale	417,599	96,233
Derivative assets	108,526	35,654
Derivative liabilities	105,454	33,973
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	0	0
Securities available for sale	0	0
Marketable equity securities	58,539	56,074
Loans held for sale	0	0
Derivative assets	0	0
Derivative liabilities	54	734
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	0	0
Securities available for sale	1,369,604	1,399,647
Marketable equity securities	1,057	564
Loans held for sale	215,314	96,233
Derivative assets	101,442	31,727
Derivative liabilities	105,400	33,239
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,145	11,212
Securities available for sale	0	0
Marketable equity securities	0	0
Loans held for sale	202,285	0
Derivative assets	7,084	3,927
Derivative liabilities	0	0
Recurring | Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,145	11,212
Loans held for sale	215,314	96,233
Derivative assets	108,526	35,654
Capitalized servicing rights	16,413	11,485
Derivative liabilities	105,454	33,973
Recurring | Total Fair Value | Debt securities | Municipal bonds and obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	116,781	111,207
Recurring | Total Fair Value | Debt securities | Agency collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	843,852	930,884
Recurring | Total Fair Value | Debt securities | Agency residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	174,216	170,321
Recurring | Total Fair Value | Debt securities | Agency commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	60,971	58,925
Recurring | Total Fair Value | Debt securities | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	129,021	119,956
Recurring | Total Fair Value | Debt securities | Other bonds and obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	44,763	8,354
Recurring | Total Fair Value | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable equity securities	59,596	56,638
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	0	0
Loans held for sale	0	0
Derivative assets	0	0
Capitalized servicing rights	0	0
Derivative liabilities	54	734
Recurring | Level 1 | Debt securities | Municipal bonds and obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 1 | Debt securities | Agency collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 1 | Debt securities | Agency residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 1 | Debt securities | Agency commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 1 | Debt securities | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 1 | Debt securities | Other bonds and obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 1 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable equity securities	58,539	56,074
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	0	0
Loans held for sale	215,314	96,233
Derivative assets	101,442	31,727
Capitalized servicing rights	0	0
Derivative liabilities	105,400	33,239
Recurring | Level 2 | Debt securities | Municipal bonds and obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	116,781	111,207
Recurring | Level 2 | Debt securities | Agency collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	843,852	930,884
Recurring | Level 2 | Debt securities | Agency residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	174,216	170,321
Recurring | Level 2 | Debt securities | Agency commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	60,971	58,925
Recurring | Level 2 | Debt securities | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	129,021	119,956
Recurring | Level 2 | Debt securities | Other bonds and obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	44,763	8,354
Recurring | Level 2 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable equity securities	1,057	564
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,145	11,212
Loans held for sale	0	0
Derivative assets	7,084	3,927
Capitalized servicing rights	16,413	11,485
Derivative liabilities	0	0
Recurring | Level 3 | Debt securities | Municipal bonds and obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 3 | Debt securities | Agency collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 3 | Debt securities | Agency residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 3 | Debt securities | Agency commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 3 | Debt securities | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 3 | Debt securities | Other bonds and obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Level 3 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable equity securities	$ 0	$ 0

FAIR VALUE MEASUREMENTS - Narra

FAIR VALUE MEASUREMENTS - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)security	Sep. 30, 2018USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of trading securities in the portfolio | security			1
Continuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payments for origination of mortgage loans held-for-sale	$ 22,600,000	$ 15,500,000	$ 51,500,000	$ 40,800,000
Proceeds from sale and collection of loans held-for-sale	25,100,000	16,100,000	48,600,000	39,200,000
Continuing Operations | Loans Held for Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) in fair value of loans held for sale included in earnings	(49,000)	0	42,000	(20,000)
Discontinued Operations | Loans Held for Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) in fair value of loans held for sale included in earnings	$ (900,000)	$ (1,400,000)	$ 1,700,000	$ (2,500,000)

FAIR VALUE MEASUREMENTS - Loans

FAIR VALUE MEASUREMENTS - Loans Held for Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans Held for Sale
Aggregate Unpaid Principal	$ 242,279	$ 114,259
Level 2
Loans Held for Sale
Aggregate Fair Value	215,314	96,233
Recurring | Level 2
Loans Held for Sale
Aggregate Fair Value	215,314	96,233
Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	215,314	96,233
Aggregate Unpaid Principal	210,359	93,019
Aggregate Fair Value Less Aggregate Unpaid Principal	4,955	3,214
Continuing Operations | Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	6,109	2,183
Aggregate Unpaid Principal	6,024	2,140
Aggregate Fair Value Less Aggregate Unpaid Principal	85	43
Discontinued Operations | Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	209,205	94,050
Aggregate Unpaid Principal	204,335	90,879
Aggregate Fair Value Less Aggregate Unpaid Principal	$ 4,870	$ 3,171

FAIR VALUE MEASUREMENTS - Chang

FAIR VALUE MEASUREMENTS - Changes in Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Commitments to lend
Changes in Level 3 assets that were measured at fair value on a recurring basis
Unrealized gains (losses) relating to instruments still held at the end of the period	$ 7,084	$ 4,924	$ 7,084	$ 4,924
Derivative Asset (Liability)
Beginning balance	9,005	7,285	3,927	5,259
Unrealized gain/(loss), net recognized in other non-interest income	0	0	0	0
Transfers to held for sale loans	(21,836)	(15,712)	(45,097)	(22,974)
Ending balance	7,084	4,924	7,084	4,924
Forward commitments
Changes in Level 3 assets that were measured at fair value on a recurring basis
Unrealized gains (losses) relating to instruments still held at the end of the period	0	0	0	0
Derivative Asset (Liability)
Beginning balance	0	0	0	19
Unrealized gain/(loss), net recognized in other non-interest income		0		0
Ending balance	0	0	0	0
Trading Security
Changes in Level 3 assets that were measured at fair value on a recurring basis
Balance at the beginning of the period	11,210	11,483	11,212	12,277
Unrealized gain/(loss), net recognized in other non-interest income	109	(138)	454	(603)
Paydown of trading security	(174)	(166)	(521)	(495)
Balance at the end of the period	11,145	11,179	11,145	11,179
Unrealized gains (losses) relating to instruments still held at the end of the period	1,576	919	1,576	919
Capitalized servicing rights
Changes in Level 3 assets that were measured at fair value on a recurring basis
Balance at the beginning of the period	11,206	7,839	11,485	3,834
Unrealized gain/(loss), net recognized in other non-interest income		0		0
Additions to servicing rights	6,588	2,509	9,423	5,710
Balance at the end of the period	16,413	10,355	16,413	10,355
Unrealized gains (losses) relating to instruments still held at the end of the period	0	0	0	0
Discontinued Operations | Commitments to lend
Derivative Asset (Liability)
Unrealized gain/(loss), net recognized in other non-interest income	19,915	13,351	48,254	22,639
Discontinued Operations | Forward commitments
Derivative Asset (Liability)
Unrealized gain/(loss), net recognized in other non-interest income		0		(19)
Discontinued Operations | Trading Security
Changes in Level 3 assets that were measured at fair value on a recurring basis
Unrealized gain/(loss), net recognized in other non-interest income		0		0
Discontinued Operations | Capitalized servicing rights
Changes in Level 3 assets that were measured at fair value on a recurring basis
Unrealized gain/(loss), net recognized in other non-interest income	$ (1,381)	$ 7	$ (4,495)	$ 811

FAIR VALUE MEASUREMENTS - Unobs

FAIR VALUE MEASUREMENTS - Unobservable Inputs Recurring (Details) $ in Thousands	Sep. 30, 2019USD ($)$ / contract	Dec. 31, 2018USD ($)$ / contract
Quantitative information about the significant unobservable inputs within Level 3
Trading security	$ 11,145	$ 11,212
Level 3 | Recurring
Quantitative information about the significant unobservable inputs within Level 3
Trading security	11,145	11,212
Total	$ 34,642	$ 26,624
Level 3 | Recurring | Discounted Cash Flow | Discount rate
Quantitative information about the significant unobservable inputs within Level 3
Trading security, significant unobservable input value	0.0196	0.0307
Level 3 | Recurring | Commitments to lend
Quantitative information about the significant unobservable inputs within Level 3
Derivative asset	$ 7,084	$ 3,927
Level 3 | Recurring | Commitments to lend | Historical Trend | Closing Ratio
Quantitative information about the significant unobservable inputs within Level 3
Derivative asset, significant unobservable input value	0.7753	0.8236
Level 3 | Recurring | Commitments to lend | Pricing Model | Origination Costs, per loan
Quantitative information about the significant unobservable inputs within Level 3
Derivative asset, significant unobservable input value | $ / contract	3,137	3,063
Level 3 | Recurring | Capitalized servicing rights
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset	$ 16,413	$ 11,485
Level 3 | Recurring | Capitalized servicing rights | Discounted Cash Flow | Discount rate
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1000	0.1000
Level 3 | Recurring | Capitalized servicing rights | Discounted Cash Flow | Constant prepayment rate (CPR)
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1180	0.0930

FAIR VALUE MEASUREMENTS - Mea_2

FAIR VALUE MEASUREMENTS - Measured on Non-recurring Basis (Details) - Non-recurring - Level 3 - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	$ 8,943	$ 4,892
Capitalized servicing rights	14,354	11,891
Total	$ 23,297	$ 16,783

FAIR VALUE MEASUREMENTS - Uno_2

FAIR VALUE MEASUREMENTS - Unobservable Inputs Non-recurring (Details) - Non-recurring - Level 3 $ in Thousands	Sep. 30, 2019USD ($)$ / contract	Dec. 31, 2018USD ($)$ / contract
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	$ 8,943	$ 4,892
Capitalized servicing rights	14,354	11,891
Total	23,297	16,783
Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	$ 8,943	$ 4,892
Minimum | Loss severity | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.1590	0
Minimum | Appraised value | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	3,900	300
Maximum | Loss severity | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.7216	0.5116
Maximum | Appraised value | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	1,550,000	877,000
Weighted Average | Loss severity | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.0130	0.0675
Weighted Average | Appraised value | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	761,400	363,000
Capitalized servicing rights | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Capitalized servicing rights	$ 14,354	$ 11,891
Capitalized servicing rights | Minimum | Constant prepayment rate (CPR) | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.0928	0.0774
Capitalized servicing rights | Minimum | Discount rate | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1000	0.1000
Capitalized servicing rights | Maximum | Constant prepayment rate (CPR) | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1355	0.1129
Capitalized servicing rights | Maximum | Discount rate | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1350	0.1413
Capitalized servicing rights | Weighted Average | Constant prepayment rate (CPR) | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1206	0.0974
Capitalized servicing rights | Weighted Average | Discount rate | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1169	0.1199

FAIR VALUE MEASUREMENTS - Fair

FAIR VALUE MEASUREMENTS - Fair Values and Carrying Amounts (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financial Assets
Marketable equity securities	$ 59,596	$ 56,638
Securities available for sale	1,369,604	1,399,647
Securities held to maturity	381,433	371,224
FHLB bank stock and restricted securities	56,049	77,344
Level 1
Financial Assets
Cash and cash equivalents	302,095	183,189
Trading security	0	0
Marketable equity securities	58,539	56,074
Securities available for sale	0	0
Securities held to maturity	0	0
Net loans	0	0
Loans held for sale	0	0
Accrued interest receivable	0	0
Derivative assets	0	0
Financial Liabilities
Total deposits	0	0
Short-term debt	0	0
Long-term Federal Home Loan Bank advances	0	0
Subordinated borrowings	0	0
Derivative liabilities	54	734
Level 2
Financial Assets
Cash and cash equivalents	0	0
Trading security	0	0
Marketable equity securities	1,057	564
Securities available for sale	1,369,604	1,399,647
Securities held to maturity	363,542	353,182
Net loans	0	0
Loans held for sale	215,314	96,233
Accrued interest receivable	39,658	36,879
Derivative assets	101,442	31,727
Financial Liabilities
Total deposits	10,436,406	8,970,321
Short-term debt	299,970	1,118,820
Long-term Federal Home Loan Bank advances	604,540	308,336
Subordinated borrowings	100,522	97,376
Derivative liabilities	105,400	33,239
Level 3
Financial Assets
Cash and cash equivalents	0	0
Trading security	11,145	11,212
Marketable equity securities	0	0
Securities available for sale	0	0
Securities held to maturity	17,891	18,042
Net loans	9,905,964	9,026,442
Loans held for sale	202,285	0
Accrued interest receivable	0	0
Derivative assets	7,084	3,927
Financial Liabilities
Total deposits	0	0
Short-term debt	0	0
Long-term Federal Home Loan Bank advances	0	0
Subordinated borrowings	0	0
Derivative liabilities	0	0
Carrying Amount
Financial Assets
Cash and cash equivalents	302,095	183,189
Trading security	11,145	11,212
Marketable equity securities	59,596	56,638
Securities available for sale	1,369,604	1,399,647
Securities held to maturity	364,675	373,763
FHLB bank stock and restricted securities	56,049	77,344
Net loans	9,656,411	8,981,784
Loans held for sale	415,105	96,233
Accrued interest receivable	39,658	36,879
Derivative assets	108,526	35,654
Financial Liabilities
Total deposits	10,423,318	8,982,381
Short-term debt	300,000	1,118,832
Long-term Federal Home Loan Bank advances	604,149	309,466
Subordinated borrowings	96,991	89,518
Derivative liabilities	105,454	33,973
Fair Value
Financial Assets
Cash and cash equivalents	302,095	183,189
Trading security	11,145	11,212
Marketable equity securities	59,596	56,638
Securities available for sale	1,369,604	1,399,647
Securities held to maturity	381,433	371,224
Net loans	9,905,964	9,026,442
Loans held for sale	417,599	96,233
Accrued interest receivable	39,658	36,879
Derivative assets	108,526	35,654
Financial Liabilities
Total deposits	10,436,406	8,970,321
Short-term debt	299,970	1,118,820
Long-term Federal Home Loan Bank advances	604,540	308,336
Subordinated borrowings	100,522	97,376
Derivative liabilities	$ 105,454	$ 33,973

NET INTEREST INCOME AFTER PRO_3

NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Banking and Thrift, Interest [Abstract]
Net interest income from continuing operations	$ 96,871	$ 88,385	$ 273,925	$ 263,434
Provision for loan losses	22,600	6,628	30,068	18,735
Net interest income from continuing operations after provision for loan losses	$ 74,271	$ 81,757	$ 243,857	$ 244,699

Uncategorized Items - bhlb-2019

Label	Element	Value
Accounting Standards Update 2016-01 [Member] | AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (6,253,000)
Accounting Standards Update 2016-01 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	6,253,000
Accounting Standards Update 2018-01 [Member] | AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	896,000
Accounting Standards Update 2018-01 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (896,000)