Berkshire Hills Bancorp (BHLB) 10-Q 9 Aug 19 2019 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2019	Aug. 07, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 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)		50,906,027
Entity Central Index Key	0001108134
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 100,588	$ 100,972
Short-term investments	128,718	82,217
Total cash and cash equivalents	229,306	183,189
Trading security, at fair value	11,210	11,212
Marketable equity securities, at fair value	59,578	56,638
Securities available for sale, at fair value	1,410,078	1,399,647
Securities held to maturity (fair values of $377,056 and $371,224)	364,463	373,763
Federal Home Loan Bank stock and other restricted securities	59,356	77,344
Total securities	1,904,685	1,918,604
Loans held for sale	184,810	2,183
Total loans	9,941,828	9,043,253
Less: Allowance for loan losses	(62,156)	(61,469)
Net loans	9,879,672	8,981,784
Premises and equipment, net	121,619	106,500
Other real estate owned	154	0
Goodwill	554,703	518,325
Other intangible assets	48,724	33,418
Cash surrender value of bank-owned life insurance policies	227,458	190,609
Deferred tax assets, net	51,118	42,434
Other assets	238,951	120,926
Assets from discontinued operations	212,745	114,259
Total assets	13,653,945	12,212,231
Liabilities
Demand deposits	1,827,016	1,603,019
NOW and other deposits	997,685	1,122,321
Money market deposits	2,811,158	2,245,195
Savings deposits	848,699	724,129
Time deposits	4,081,398	3,287,717
Total deposits	10,565,956	8,982,381
Short-term debt	608,928	1,118,832
Long-term Federal Home Loan Bank advances	295,886	309,466
Subordinated borrowings	96,927	89,518
Total borrowings	1,001,741	1,517,816
Other liabilities	280,155	149,519
Liabilities from discontinued operations	26,256	9,597
Total liabilities	11,874,108	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 51,045,173 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	1,421,461	1,245,013
Unearned compensation	(6,555)	(6,594)
Retained earnings	336,542	308,839
Accumulated other comprehensive income (loss)	11,301	(13,470)
Treasury stock, at cost (858,017 shares in 2019 and 795,039 shares in 2018)	(24,062)	(21,963)
Total shareholders’ equity	1,779,837	1,552,918
Total liabilities and shareholders’ equity	13,653,945	12,212,231
Commercial real estate
Assets
Total loans	4,005,347	3,400,221
Commercial and industrial loans
Assets
Total loans	1,987,297	1,980,046
Residential mortgages
Assets
Total loans	2,882,380	2,566,424
Consumer
Assets
Total loans	$ 1,066,804	$ 1,096,562

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value	$ 377,056	$ 371,224
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	50,000,000
Common stock, shares issued (in shares)	51,903,190	46,211,894
Common stock, shares outstanding (in shares)	51,045,173	45,416,855
Treasury stock (in shares)	858,017	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	1,000,000
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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest and dividend income from continuing operations
Loans	$ 113,990	$ 100,254	$ 219,641	$ 191,995
Securities and other	15,248	15,230	30,706	29,635
Total interest and dividend income	129,238	115,484	250,347	221,630
Interest expense from continuing operations
Deposits	28,273	17,768	54,895	33,093
Borrowings	9,370	7,424	18,398	13,488
Total interest expense	37,643	25,192	73,293	46,581
Net interest income from continuing operations	91,595	90,292	177,054	175,049
Non-interest income from continuing operations
Other, net	(216)	155	754	1,423
Gain/(loss) on securities, net	17	718	2,568	(784)
(Loss)/gain on sale of business operations and other assets, net	0	(21)	0	460
Total non-interest income	17,512	19,623	39,234	38,515
Total net revenue from continuing operations	109,107	109,915	216,288	213,564
Provision for loan losses	3,467	6,532	7,468	12,107
Non-interest expense from continuing operations
Compensation and benefits	34,779	33,499	68,279	67,346
Occupancy and equipment	9,449	9,224	18,895	18,416
Technology and communications	6,715	7,053	12,972	13,537
Marketing and promotion	1,155	1,084	2,422	2,306
Professional services	3,953	864	6,228	2,560
FDIC premiums and assessments	1,751	1,411	3,390	2,606
Other real estate owned and foreclosures	(2)	1	0	68
Amortization of intangible assets	1,475	1,246	2,675	2,514
Acquisition, restructuring, and other expenses	11,155	847	18,170	5,940
Other	6,138	6,298	15,528	11,600
Total non-interest expense	76,568	61,527	148,559	126,893
Income from continuing operations before income taxes	29,072	41,856	60,261	74,564
Income tax expense	5,118	8,145	12,035	15,482
Net income from continuing operations	23,954	33,711	48,226	59,082
Income from discontinued operations before income taxes	2,082	426	1,228	264
Income tax expense	588	106	371	67
Net income from discontinued operations	1,494	320	857	197
Net income	25,448	34,031	49,083	59,279
Preferred stock dividend	240	229	480	459
Income available to common shareholders	$ 25,208	$ 33,802	$ 48,603	$ 58,820
Basic earnings per common share:
Continuing operations (in dollars per share)	$ 0.49	$ 0.73	$ 1.01	$ 1.29
Discontinued operations (in dollars per share)	0.03	0.01	0.02	0
Total (in dollars per share)	0.52	0.74	1.03	1.29
Diluted earnings per common share:
Continuing operations (in dollars per share)	0.49	0.73	1.01	1.28
Discontinued operations (in dollars per share)	0.03	0.01	0.02	0
Total (in dollars per share)	$ 0.52	$ 0.74	$ 1.03	$ 1.28
Weighted average shares outstanding:
Basic (in shares)	48,961	46,032	47,550	45,999
Diluted (in shares)	49,114	46,215	47,700	46,206
Mortgage banking originations
Non-interest income from continuing operations
Total non-interest income	$ 278	$ 334	$ 324	$ 472
Loan related income
Non-interest income from continuing operations
Total non-interest income	4,822	6,003	10,825	10,822
Deposit related fees
Non-interest income from continuing operations
Total non-interest income	7,525	7,605	14,383	15,671
Insurance commissions and fees
Non-interest income from continuing operations
Total non-interest income	2,738	2,549	5,591	5,574
Wealth management fees
Non-interest income from continuing operations
Total non-interest income	2,348	2,280	4,789	4,877
Total fee income
Non-interest income from continuing operations
Total non-interest income	$ 17,711	$ 18,771	$ 35,912	$ 37,416

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income from continuing operations	$ 25,448	$ 34,031	$ 49,083	$ 59,279
Other comprehensive income, before tax:
Changes in unrealized gain on debt securities available-for-sale	19,108	(7,840)	33,323	(27,002)
Income taxes related to other comprehensive income:
Changes in unrealized gain on debt securities available-for-sale	(4,901)	2,001	(8,552)	6,932
Total other comprehensive income/(loss)	14,207	(5,839)	24,771	(20,070)
Total comprehensive income	$ 39,655	$ 28,192	$ 73,854	$ 39,209

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 (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	59,279					59,279
Other comprehensive income (loss)	(20,070)						(20,070)
Total comprehensive income	39,209					59,279	(20,070)
Cash dividends declared on common shares	(19,977)					(19,977)
Cash dividends declared on preferred shares	(459)					(459)
Forfeited shares (in shares)			(15)
Forfeited shares				88	478			(566)
Exercise of stock options (in shares)			8
Exercise of stock options	101					(123)		224
Restricted stock grants (in shares)			181
Restricted stock grants				2,100	(6,841)			4,741
Stock-based compensation	2,798				2,798
Other, net (in shares)			(44)
Other, net	(1,695)			16				(1,711)
Balance (in shares) at Jun. 30, 2018		522	45,420
Balance at end of period at Jun. 30, 2018	1,516,241	$ 40,633	$ 460	1,244,691	(10,096)	283,256	(21,266)	(21,437)
Balance (in shares) at Mar. 31, 2018		522	45,360
Balance at beginning of period at Mar. 31, 2018	1,497,657	$ 40,633	$ 460	1,243,590	(8,476)	259,499	(15,427)	(22,622)
Comprehensive income:
Net income	34,031					34,031
Other comprehensive income (loss)	(5,839)						(5,839)
Total comprehensive income	28,192					34,031	(5,839)
Cash dividends declared on common shares	(9,995)					(9,995)
Cash dividends declared on preferred shares	(229)					(229)
Forfeited shares (in shares)			(11)
Forfeited shares				57	353			(410)
Exercise of stock options (in shares)			3
Exercise of stock options	25					(50)		75
Restricted stock grants (in shares)			89
Restricted stock grants				1,044	(3,389)			2,345
Stock-based compensation	1,416				1,416
Other, net (in shares)			(21)
Other, net	(825)							(825)
Balance (in shares) at Jun. 30, 2018		522	45,420
Balance at end of period at Jun. 30, 2018	1,516,241	$ 40,633	$ 460	1,244,691	(10,096)	283,256	(21,266)	(21,437)
Balance (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	49,083					49,083
Other comprehensive income (loss)	24,771						24,771
Total comprehensive income	73,854					49,083	24,771
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	(20,944)					(20,944)
Cash dividends declared on preferred shares	(480)					(480)
Treasury stock repurchased (in shares)			(110)
Treasury stock repurchased	(3,326)							(3,326)
Forfeited shares (in shares)			(51)
Forfeited shares				(209)	1,699			(1,490)
Exercise of stock options (in shares)			1
Exercise of stock options	14					$ (15)		29
Restricted stock grants (in shares)			131
Restricted stock grants				3	(3,664)			3,661
Stock-based compensation	2,004				2,004
Other, net (in shares)			(34)			59
Other, net	(914)							(973)
Balance (in shares) at Jun. 30, 2019		522	51,045
Balance at end of period at Jun. 30, 2019	1,779,837	$ 40,633	$ 517	1,421,461	(6,555)	$ 336,542	11,301	(24,062)
Balance (in shares) at Mar. 31, 2019		522	45,522
Balance at beginning of period at Mar. 31, 2019	1,577,005	$ 40,633	$ 460	1,244,975	(8,825)	321,759	(2,906)	(19,091)
Comprehensive income:
Net income	25,448					25,448
Other comprehensive income (loss)	14,207						14,207
Total comprehensive income	39,655					25,448	14,207
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	(10,469)					(10,469)
Cash dividends declared on preferred shares	(240)					(240)
Treasury stock repurchased (in shares)			(110)
Treasury stock repurchased	(3,326)							(3,326)
Forfeited shares (in shares)			(38)
Forfeited shares				(168)	1,255			(1,087)
Exercise of stock options (in shares)			1
Exercise of stock options	14					(15)		29
Stock-based compensation	1,015				1,015
Other, net (in shares)			(21)
Other, net	(528)					59		(587)
Balance (in shares) at Jun. 30, 2019		522	51,045
Balance at end of period at Jun. 30, 2019	$ 1,779,837	$ 40,633	$ 517	$ 1,421,461	$ (6,555)	$ 336,542	$ 11,301	$ (24,062)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Stockholders' Equity [Abstract]
Common stock, cash dividends declared (in dollars per share)	$ 0.23	$ 0.22	$ 0.46	$ 0.44
Preferred stock, cash dividends declared (in dollars per share)	$ 0.46	$ 0.44	$ 0.92	$ 0.88

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income from continuing operations	$ 48,226	$ 59,082
Net income from discontinued operations	857	197
Net income	49,083	59,279
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	7,468	12,107
Net amortization of securities	1,228	1,460
Change in unamortized net loan costs and premiums	5,693	(1,520)
Premises and equipment depreciation and amortization expense	4,952	5,056
Stock-based compensation expense	2,004	2,798
Accretion of purchase accounting entries, net	(4,642)	(11,114)
Amortization of other intangibles	2,675	2,514
Income from cash surrender value of bank-owned life insurance policies	(2,463)	(2,359)
Securities (gains) losses, net	(2,568)	784
Net (decrease) in loans held-for-sale	(5,478)	(1,843)
Change in right-of-use lease assets	6,488
Change in lease liabilities	(6,638)
Loss on disposition of assets	1,615	0
Amortization of interest in tax-advantaged projects	2,517	2,100
Net change in other	(5,320)	357
Net cash provided by operating activities of continuing operations	55,757	69,422
Net cash (used) provided by operating activities of discontinued operations	(81,825)	1,461
Net cash (used) provided by operating activities	(26,068)	70,883
Cash flows from investing activities:
Net decrease in trading security	347	328
Purchases of marketable equity securities	(12,393)	(12,688)
Proceeds from sales of marketable equity securities	11,896	26,096
Purchases of securities available for sale	(15,180)	(165,312)
Proceeds from sales of securities available for sale	82,978	0
Proceeds from maturities, calls, and prepayments of securities available for sale	89,766	93,049
Purchases of securities held to maturity	(459)	(7,781)
Proceeds from maturities, calls, and prepayments of securities held to maturity	9,287	23,981
Net change in loans	219,395	(413,717)
Proceeds from surrender of bank-owned life insurance	0	459
Purchase of Federal Home Loan Bank stock	(52,212)	(41,118)
Proceeds from sale of Federal Home Loan Bank stock	78,121	28,673
Net investment in limited partnership tax credits	(1,815)	(2,464)
Purchase of premises and equipment, net	(4,111)	(7,958)
Acquisitions, net of cash (paid) acquired	110,774	0
Proceeds from sale of other real estate	0	1,600
Net investing cash flows from discontinued operations	(2)	0
Net cash provided (used) by investing activities	516,392	(476,852)
Cash flows from financing activities:
Net increase in deposits	249,777	90,009
Proceeds from Federal Home Loan Bank advances and other borrowings	2,242,517	2,287,896
Repayments of Federal Home Loan Bank advances and other borrowings	(2,911,765)	(2,061,307)
Purchase of treasury stock	(3,326)	0
Exercise of stock options	14	101
Common and preferred stock cash dividends paid	(21,424)	(20,436)
Net cash (used) provided by financing activities	(444,207)	296,263
Net change in cash and cash equivalents	46,117	(109,706)
Cash and cash equivalents at beginning of period	183,189	248,763
Cash and cash equivalents at end of period	229,306	139,057
Supplemental cash flow information:
Interest paid on deposits	54,291	32,160
Interest paid on borrowed funds	20,318	14,202
Income taxes paid (refunded), net	3,752	(2,446)
Acquisition of non-cash assets and liabilities:
Assets acquired	1,595,054	0
Liabilities assumed	(1,530,010)	0
Other non-cash changes:
Other net comprehensive income	24,771	(20,070)
Reclass of aircraft loan portfolio to held-for-sale	176,144	0
Real estate owned acquired in settlement of loans	$ 0	$ 1,600

BASIS OF PRESENTATION

BASIS OF PRESENTATION	6 Months Ended
	Jun. 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. Management is working through its implementation plan which includes assessment and documentation of processes and internal controls; model development and documentation; and system configuration. This is in preparation for performing a full end to end parallel run. 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 its 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	6 Months Ended
	Jun. 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 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. 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 $11.3 million during the six months ending June 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 six months ended June 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, except earnings per share: Pro Forma (unaudited) Six Months Ended June 30, 2019 2018 Net interest income $ 195,624 $ 202,709 Non-interest income 43,732 44,228 Income available to common shareholders 60,357 67,666

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS	6 Months Ended
	Jun. 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 June 30, 2019 and December 31, 2018: (in thousands) June 30, 2019 December 31, 2018 Assets Loans held for sale, at fair value $ 182,882 $ 94,050 Premises and equipment, net 1,710 1,867 Other assets 28,153 18,342 Total assets $ 212,745 $ 114,259 Liabilities Other liabilities $ 26,256 $ 9,597 Total liabilities $ 26,256 $ 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 six months ended June 30, 2019 and June 30, 2018: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2019 2018 2019 2018 Interest income $ 1,818 $ 1,395 $ 2,862 $ 2,489 Interest expense 1,062 566 1,646 947 Net interest income 756 829 1,216 1,542 Non-interest income 13,246 10,407 22,059 21,035 Total net revenue 14,002 11,236 23,275 22,577 Non-interest expense 11,920 10,810 22,047 22,313 Income from discontinued operations before income taxes 2,082 426 1,228 264 Income tax expense 588 106 371 67 Net income from discontinued operations $ 1,494 $ 320 $ 857 $ 197 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	6 Months Ended
	Jun. 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 $9.7 million and $10.1 million , and a fair value of $11.2 million and $11.2 million , at June 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 June 30, 2019 .

SECURITIES AVAILABLE FOR SALE,

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES	6 Months Ended
	Jun. 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 June 30, 2019 Securities available for sale Municipal bonds and obligations $ 114,401 $ 5,477 $ (5 ) $ 119,873 Agency collateralized mortgage obligations 882,124 7,419 (581 ) 888,962 Agency mortgage-backed securities 182,598 739 (1,079 ) 182,258 Agency commercial mortgage-backed securities 61,275 465 (1,089 ) 60,651 Corporate bonds 119,917 880 (1,054 ) 119,743 Trust preferred securities 8,323 231 (4 ) 8,550 Other bonds and obligations 29,084 963 (6 ) 30,041 Total securities available for sale 1,397,722 16,174 (3,818 ) 1,410,078 Securities held to maturity Municipal bonds and obligations 257,232 10,835 — 268,067 Agency collateralized mortgage obligations 70,726 2,975 (115 ) 73,586 Agency mortgage-backed securities 6,758 — (57 ) 6,701 Agency commercial mortgage-backed securities 10,385 46 — 10,431 Tax advantaged economic development bonds 19,063 172 (1,263 ) 17,972 Other bonds and obligations 299 — — 299 Total securities held to maturity 364,463 14,028 (1,435 ) 377,056 Marketable equity securities 55,831 4,820 (1,073 ) 59,578 Total $ 1,818,016 $ 35,022 $ (6,326 ) $ 1,846,712 (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 112,404 342 (1,256 ) 111,490 Trust preferred securities 8,314 251 (99 ) 8,466 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 June 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 $ 15,204 $ 15,245 $ 2,875 $ 2,875 Over 1 year to 5 years 31,179 31,213 14,729 14,844 Over 5 years to 10 years 71,721 72,831 15,086 15,180 Over 10 years 153,621 158,918 243,904 253,439 Total bonds and obligations 271,725 278,207 276,594 286,338 Mortgage-backed securities 1,125,997 1,131,871 87,869 90,718 Total $ 1,397,722 $ 1,410,078 $ 364,463 $ 377,056 During the three and six months ended June 30, 2019 , the proceeds from the sale of AFS securities totaled $80.4 million and $83.0 million , respectively. During the three months ended June 30,2019, gross gains on AFS securities totaled $5 thousand and gross losses totaled $7 thousand . During the six months ended June 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. There were no sales of AFS securities during the three and six months ended June 30, 2018. 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 June 30, 2019 Securities available for sale Municipal bonds and obligations $ — $ — $ 5 $ 1,319 $ 5 $ 1,319 Agency collateralized mortgage obligations 72 43,755 509 103,929 581 147,684 Agency mortgage-backed securities 5 2,191 1,074 93,990 1,079 96,181 Agency commercial mortgage-backed securities — — 1,089 55,319 1,089 55,319 Corporate bonds 434 37,147 620 30,036 1,054 67,183 Trust preferred securities 4 7,163 — — 4 7,163 Other bonds and obligations — — 6 3,052 6 3,052 Total securities available for sale 515 90,256 3,303 287,645 3,818 377,901 Securities held to maturity Agency collateralized mortgage obligations — — 115 10,648 115 10,648 Agency mortgage-backed securities — — 57 6,701 57 6,701 Tax advantaged economic development bonds — — 1,263 6,729 1,263 6,729 Total securities held to maturity — — 1,435 24,078 1,435 24,078 Total $ 515 $ 90,256 $ 4,738 $ 311,723 $ 5,253 $ 401,979 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 1,249 74,434 7 2,561 1,256 76,995 Trust preferred securities 99 7,068 — — 99 7,068 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 June 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 June 30, 2019 : AFS municipal bonds and obligations At June 30, 2019, 2 out of the total 246 securities in the Company’s portfolio of AFS municipal bonds and obligations were in unrealized loss positions. 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. AFS collateralized mortgage obligations At June 30, 2019 , 59 out of the total 253 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 June 30, 2019 , 45 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 1.4% 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 June 30, 2019 , 11 out of the total 23 securities in the Company’s portfolio of AFS corporate bonds were in unrealized loss positions. Aggregate unrealized losses represents 1.5% 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 trust preferred securities At June 30, 2019, 1 out of the total 2 securities in the Company’s portfolio of AFS trust preferred securities were in an unrealized loss position. Aggregate unrealized losses represented 0.1% of the amortized cost of these securities in an unrealized loss position. The Company’s evaluation of the present value of expected cash flows on these securities supports its conclusions about the recoverability of these securities’ amortized cost basis. These securities are investment grade rated. The Company reviews the financial strength of all of the single issue trust issuers and has concluded that the amortized cost remains supported by the market value of these securities and they are performing. AFS other bonds and obligations At June 30, 2019 , 6 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 0.2% 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 collateralized mortgage obligations At June 30, 2019 , 1 out of the total 9 securities in the Company’s portfolio of HTM collateralized mortgage obligations 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 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 commercial and residential mortgage-backed securities At June 30, 2019 , 1 out of the total 2 securities in the Company’s portfolio of HTM 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 the Company’s residential mortgage-backed securities. 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 June 30, 2019, 1 out of the total 5 securities in the Company’s portfolio of tax-advantaged economic development bonds were in unrealized loss positions. Aggregate unrealized losses represented 15.8% 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	6 Months Ended
	Jun. 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 period ended June 30, 2019, the Company reclassified $176 million of aircraft loans from commercial and industrial to held-for-sale, reflecting its intent to sell the portfolio. These loans are not contained in the balances below. The following is a summary of total loans: June 30, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ 300,996 $ 58,497 $ 359,493 $ 327,792 $ 25,220 $ 353,012 Other commercial real estate 2,358,502 1,287,352 3,645,854 2,260,919 786,290 3,047,209 Total commercial real estate 2,659,498 1,345,849 4,005,347 2,588,711 811,510 3,400,221 Commercial and industrial loans: 1,471,766 515,531 1,987,297 1,513,538 466,508 1,980,046 Total commercial loans 4,131,264 1,861,380 5,992,644 4,102,249 1,278,018 5,380,267 Residential mortgages: 1-4 family 2,268,445 596,607 2,865,052 2,317,716 238,952 2,556,668 Construction 9,170 8,158 17,328 9,582 174 9,756 Total residential mortgages 2,277,615 604,765 2,882,380 2,327,298 239,126 2,566,424 Consumer loans: Home equity 281,254 122,576 403,830 289,961 86,719 376,680 Auto and other 604,272 58,702 662,974 647,236 72,646 719,882 Total consumer loans 885,526 181,278 1,066,804 937,197 159,365 1,096,562 Total loans $ 7,294,405 $ 2,647,423 $ 9,941,828 $ 7,366,744 $ 1,676,509 $ 9,043,253 The carrying amount of the acquired loans at June 30, 2019 totaled $2.6 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 $74.1 million (and a note balance of $169.9 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 $2.6 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 June 30, (In thousands) 2019 2018 Balance at beginning of period $ 2,139 $ 10,392 Acquisitions 4,200 — Accretion (2,278 ) (6,881 ) Net reclassifications from (to) nonaccretable difference 1,464 4,517 Payments received, net (105 ) (1,724 ) Balance at end of period $ 5,420 $ 6,304 Six Months Ended June 30, (In thousands) 2019 2018 Balance at beginning of period $ 2,840 $ 11,561 Acquisitions 4,200 — Accretion (3,598 ) (10,313 ) Net reclassifications from (to) nonaccretable difference 2,129 7,049 Payments received, net (160 ) (1,912 ) Reclassification to TDR 9 — Disposals — (81 ) Balance at end of period $ 5,420 $ 6,304 The following is a summary of past due loans at June 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 > June 30, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ 300,996 $ 300,996 $ — Other commercial real estate 388 478 17,375 18,241 2,340,261 2,358,502 — Total 388 478 17,375 18,241 2,641,257 2,659,498 — Commercial and industrial loans: Total 2,071 784 9,889 12,744 1,459,022 1,471,766 1,422 Residential mortgages: 1-4 family 867 543 3,504 4,914 2,263,531 2,268,445 1,258 Construction — — — — 9,170 9,170 — Total 867 543 3,504 4,914 2,272,701 2,277,615 1,258 Consumer loans: — Home equity 191 582 979 1,752 279,502 281,254 165 Auto and other 3,498 663 1,802 5,963 598,309 604,272 — Total 3,689 1,245 2,781 7,715 877,811 885,526 165 Total $ 7,015 $ 3,050 $ 33,549 $ 43,614 $ 7,250,791 $ 7,294,405 $ 2,845 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 > June 30, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ 1,411 $ 58,497 $ — Other commercial real estate 998 695 4,432 6,125 28,212 1,287,352 2,441 Total 998 695 4,432 6,125 29,623 1,345,849 2,441 Commercial and industrial loans: Total 1,055 62 1,003 2,120 31,456 515,531 214 Residential mortgages: 1-4 family 970 488 1,408 2,866 12,050 596,607 75 Construction — — — — — 8,158 — Total 970 488 1,408 2,866 12,050 604,765 75 Consumer loans: Home equity 379 — 727 1,106 700 122,576 82 Auto and other 168 41 309 518 263 58,702 — Total 547 41 1,036 1,624 963 181,278 82 Total $ 3,570 $ 1,286 $ 7,879 $ 12,735 $ 74,092 $ 2,647,423 $ 2,812 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 June 30, 2019 and December 31, 2018: June 30, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ — $ — $ — $ — $ — $ — Other commercial real estate 17,375 1,991 19,366 17,840 2,531 20,371 Total 17,375 1,991 19,366 17,840 2,531 20,371 Commercial and industrial loans: Total 8,467 789 9,256 4,632 1,371 6,003 Residential mortgages: 1-4 family 2,246 1,333 3,579 1,374 843 2,217 Construction — — — — — — Total 2,246 1,333 3,579 1,374 843 2,217 Consumer loans: Home equity 814 645 1,459 933 751 1,684 Auto and other 1,802 309 2,111 1,699 451 2,150 Total 2,616 954 3,570 2,632 1,202 3,834 Total non-accrual loans $ 30,704 $ 5,067 $ 35,771 $ 26,478 $ 5,947 $ 32,425 Loans evaluated for impairment as of June 30, 2019 and December 31, 2018 were as follows: Business Activities Loans (In thousands) Commercial Commercial and Residential Consumer Total June 30, 2019 Loans receivable: Balance at end of period Individually evaluated for impairment $ 22,035 $ 6,753 $ 2,841 $ 138 $ 31,767 Collectively evaluated for impairment 2,637,463 1,465,013 2,274,774 885,388 7,262,638 Total $ 2,659,498 $ 1,471,766 $ 2,277,615 $ 885,526 $ 7,294,405 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 June 30, 2019 Loans receivable: Balance at end of Period Individually evaluated for impairment $ 3,709 $ 372 $ 740 $ 349 $ 5,170 Purchased credit-impaired loans 29,623 31,456 12,050 963 74,092 Collectively evaluated for impairment 1,312,517 483,703 591,975 179,966 2,568,161 Total $ 1,345,849 $ 515,531 $ 604,765 $ 181,278 $ 2,647,423 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 June 30, 2019 and December 31, 2018: Business Activities Loans June 30, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate $ 21,538 $ 33,028 $ — Commercial and industrial loans 5,319 10,807 — Residential mortgages - 1-4 family 1,244 1,407 — Consumer - home equity 35 240 — Consumer - other — — — With an allowance recorded: Other commercial real estate $ 513 $ 525 $ 7 Commercial and industrial loans 1,343 1,349 42 Residential mortgages - 1-4 family 1,613 1,739 78 Consumer - home equity 92 101 7 Consumer - other 11 11 — Total Commercial real estate $ 22,051 $ 33,553 $ 7 Commercial and industrial loans 6,662 12,156 42 Residential mortgages 2,857 3,146 78 Consumer 138 352 7 Total impaired loans $ 31,708 $ 49,207 $ 134 (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 June 30, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 2,664 $ 5,544 $ — Commercial and industrial loans 343 594 — Residential mortgages - 1-4 family 658 656 — Consumer - home equity 243 1,448 — Consumer - other 16 14 — With an allowance recorded: Other commercial real estate loans $ 1,066 $ 1,071 $ 84 Commercial and industrial loans 29 30 — Residential mortgages - 1-4 family 88 113 8 Consumer - home equity 50 50 — Consumer - other 41 39 7 Total x Commercial real estate $ 3,730 $ 6,615 $ 84 Commercial and industrial loans 372 624 — Residential mortgages 746 769 8 Consumer 350 1,551 7 Total impaired loans $ 5,198 $ 9,559 $ 99 (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 June 30, 2019 and 2018: Business Activities Loans Six Months Ended Six Months Ended (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 20,877 $ 213 $ 29,092 $ 326 Commercial and industrial loans 1,775 304 4,467 201 Residential mortgages - 1-4 family 574 23 942 26 Consumer - home equity 196 1 1,754 4 Consumer - other — — — — With an allowance recorded: Other commercial real estate loans $ 569 $ 12 $ 1,786 $ 47 Commercial and industrial loans 1,468 64 1,279 83 Residential mortgages - 1-4 family 1,633 37 1,409 32 Consumer - home equity 95 3 45 1 Consumer - other 12 — 16 — Total Commercial real estate $ 21,446 $ 225 $ 30,878 $ 373 Commercial and industrial loans 3,243 368 5,746 284 Residential mortgages 2,207 60 2,351 58 Consumer loans 303 4 1,815 5 Total impaired loans $ 27,199 $ 657 $ 40,790 $ 720 Acquired Loans Six Months Ended June 30, 2019 Six Months Ended June 30, 2018 (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 2,607 $ 82 $ 2,306 $ 111 Commercial and industrial loans 522 32 349 27 Residential mortgages - 1-4 family 362 12 1,505 6 Consumer - home equity 557 5 760 — Consumer - other 5 — 17 1 With an allowance recorded: Other commercial real estate loans $ 965 $ 33 $ 3,020 $ 89 Commercial and industrial loans 30 1 287 17 Residential mortgages - 1-4 family 90 4 77 2 Consumer - home equity 50 1 320 5 Consumer - other 42 1 — — Total Commercial real estate $ 3,572 $ 115 $ 5,326 $ 200 Commercial and industrial loans 552 33 636 44 Residential mortgages 452 16 1,582 8 Consumer loans 654 7 1,097 6 Total impaired loans $ 5,230 $ 171 $ 8,641 $ 258 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 six months ended June 30, 2019 and June 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 six months ended June 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 June 30, 2019 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate — $ — $ — Commercial and industrial 2 282 279 Total 2 $ 282 $ 279 Six Months Ended June 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 Total 5 $ 620 $ 617 Three Months Ended June 30, 2018 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial and industrial — $ — $ — Residential - 1-4 Family — — — Total — $ — $ — Six Months Ended June 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 1 118 118 Total 5 $ 2,113 $ 2,042 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. There were no TDRs that defaulted within 12 months of modifications during the three and six months ended June 30, 2019. For the three and six months ended June 30, 2018, there were two loans that were restructured that had subsequently defaulted during the period. Modifications that Subsequently Defaulted Three Months Ended June 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 Modifications that Subsequently Defaulted Six Months Ended June 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 six months ended June 30, 2019 and 2018: Three Months Ended June 30, (In thousands) 2019 2018 Balance at beginning of the period $ 25,185 $ 43,105 Principal payments (375 ) (2,511 ) TDR status change (1) — — Other reductions (2) — (7,088 ) Newly identified TDRs 279 — Balance at end of the period $ 25,089 $ 33,506 Six Months Ended June 30, (In thousands) 2019 2018 Balance at beginning of the period $ 27,415 $ 41,990 Principal payments (1,788 ) (3,150 ) TDR status change (1) — — Other reductions (2) (1,155 ) (7,376 ) Newly identified TDRs 617 2,042 Balance at end of the period $ 25,089 $ 33,506 _________________________________ (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 June 30, 2019 , the Company maintained foreclosed residential real estate property with a fair value of $154 thousand . Additionally, residential mortgage loans collateralized by real estate property that are in the process of foreclosure as of June 30, 2019 and December 31, 2018 totaled $5.4 million and $3.2 million

LOAN LOSS ALLOWANCE

LOAN LOSS ALLOWANCE	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
LOAN LOSS ALLOWANCE	LOAN LOSS ALLOWANCE Activity in the allowance for loan losses for the three and six months ended June 30, 2019 and 2018 was as follows: At or for the three months ended June 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 22,521 $ 18,247 $ 9,209 $ 6,235 $ 56,212 Charged-off loans 702 1,180 206 857 2,945 Recoveries on charged-off loans 67 119 43 79 308 Provision/(releases) for loan losses 522 1,663 (212 ) (116 ) 1,857 Balance at end of period $ 22,408 $ 18,849 $ 8,834 $ 5,341 $ 55,432 At or for the six months ended June 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 1,958 2,856 248 1,776 6,838 Recoveries on charged-off loans 275 426 58 133 892 Provision/(releases) for loan losses 2,359 4,775 (1,511 ) (384 ) 5,239 Balance at end of period $ 22,408 $ 18,849 $ 8,834 $ 5,341 $ 55,432 At or for the three months ended June 30, 2018 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 17,841 $ 13,229 $ 8,598 $ 7,609 $ 47,277 Charged-off loans 1,392 1,706 27 837 3,962 Recoveries on charged-off loans 26 447 6 135 614 Provision/(releases) for loan losses 2,676 2,685 853 171 6,385 Balance at end of period $ 19,151 $ 14,655 $ 9,430 $ 7,078 $ 50,314 At or for the six months ended June 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 1,498 2,596 27 1,777 5,898 Recoveries on charged-off loans 49 491 6 209 755 Provision/(releases) for loan losses 3,757 2,910 31 2,839 9,537 Balance at end of period $ 19,151 $ 14,655 $ 9,430 $ 7,078 $ 50,314 At or for the three months ended June 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,910 $ 879 $ 622 $ 415 $ 5,826 Charged-off loans 624 109 31 257 1,021 Recoveries on charged-off loans 24 175 55 55 309 Provision/(releases) for loan losses 1,252 (75 ) 236 197 1,610 Balance at end of period $ 4,562 $ 870 $ 882 $ 410 $ 6,724 At or for the six months ended June 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 804 371 104 428 1,707 Recoveries on charged-off loans 500 226 60 86 872 Provision/(releases) for loan losses 1,713 (49 ) 296 269 2,229 Balance at end of period $ 4,562 $ 870 $ 882 $ 410 $ 6,724 At or for the three months ended June 30, 2018 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,995 $ 1,243 $ 1,046 $ 298 $ 6,582 Charged-off loans 972 — 622 164 1,758 Recoveries on charged-off loans 259 66 11 304 640 Provision/(releases) for loan losses 100 (182 ) 183 46 147 Balance at end of period $ 3,382 $ 1,127 $ 618 $ 484 $ 5,611 At or for the six months ended June 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 1,712 155 1,053 693 3,613 Recoveries on charged-off loans 265 95 36 344 740 Provision/(releases) for loan losses 973 62 1,037 498 2,570 Balance at end of period $ 3,382 $ 1,127 $ 618 $ 484 $ 5,611 The following tables present a summary of the allowance for loan losses as of June 30, 2019 and December 31, 2018: At June 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 7 42 78 7 134 Collectively evaluated for impairment 22,401 18,807 8,756 5,334 55,298 Total $ 22,408 $ 18,849 $ 8,834 $ 5,341 $ 55,432 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 June 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 84 — 8 7 99 Collectively evaluated for impairment 4,478 870 874 403 6,625 Total $ 4,562 $ 870 $ 882 $ 410 $ 6,724 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 June 30, 2019 , the allowance for loan losses related to acquired loans under ASC 310-30 and ASC 310-20 was $6.7 million using the above mentioned criteria. The following tables present the Company’s loans by risk rating at June 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) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Grade: Pass $ 300,996 $ 327,792 $ 2,283,244 $ 2,198,129 $ 2,584,240 $ 2,525,921 Special mention — — 24,154 9,805 24,154 9,805 Substandard — — 51,104 52,985 51,104 52,985 Total $ 300,996 $ 327,792 $ 2,358,502 $ 2,260,919 $ 2,659,498 $ 2,588,711 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total comm. and industrial loans (In thousands) June 30, 2019 December 31, 2018 Grade: Pass $ 1,385,702 $ 1,469,139 Special mention 53,543 14,279 Substandard 31,617 29,176 Doubtful 904 944 Total $ 1,471,766 $ 1,513,538 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Grade: Pass $ 2,264,398 $ 2,314,657 $ 9,170 $ 9,582 $ 2,273,568 $ 2,324,239 Special mention 543 1,619 — — 543 1,619 Substandard 3,504 1,440 — — 3,504 1,440 Total $ 2,268,445 $ 2,317,716 $ 9,170 $ 9,582 $ 2,277,615 $ 2,327,298 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Performing $ 280,440 $ 289,028 $ 602,469 $ 645,537 $ 882,909 $ 934,565 Nonperforming 814 933 1,803 1,699 2,617 2,632 Total $ 281,254 $ 289,961 $ 604,272 $ 647,236 $ 885,526 $ 937,197 Acquired Loans Commercial Real Estate Credit Risk Profile by Creditworthiness Category Construction Real Estate Total commercial real estate (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Grade: Pass $ 56,384 $ 24,519 $ 1,231,162 $ 743,684 $ 1,287,546 $ 768,203 Special mention 1,411 — 14,147 9,086 15,558 9,086 Substandard 702 701 42,043 33,520 42,745 34,221 Total $ 58,497 $ 25,220 $ 1,287,352 $ 786,290 $ 1,345,849 $ 811,510 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total comm. and industrial loans (In thousands) June 30, 2019 December 31, 2018 Grade: Pass $ 483,151 $ 439,602 Special mention 12,893 11,374 Substandard 19,487 15,532 Total $ 515,531 $ 466,508 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Grade: Pass $ 590,578 $ 235,173 $ 8,158 $ 174 $ 598,736 $ 235,347 Special mention 696 144 — — 696 144 Substandard 5,333 3,635 — — 5,333 3,635 Total $ 596,607 $ 238,952 $ 8,158 $ 174 $ 604,765 $ 239,126 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Performing $ 121,931 $ 85,968 $ 58,393 $ 72,195 $ 180,324 $ 158,163 Nonperforming 645 751 309 451 954 1,202 Total $ 122,576 $ 86,719 $ 58,702 $ 72,646 $ 181,278 $ 159,365 The following table summarizes information about total loans rated Special Mention or lower as of June 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. June 30, 2019 December 31, 2018 (In thousands) Business Acquired Loans Total Business Acquired Loans Total Non-Accrual $ 30,704 $ 5,067 $ 35,771 $ 26,478 $ 5,947 $ 32,425 Substandard Accruing 59,206 63,606 122,812 60,698 48,792 109,490 Total Classified 89,910 68,673 158,583 87,176 54,739 141,915 Special Mention 79,484 29,187 108,671 26,333 20,833 47,166 Total Criticized $ 169,394 $ 97,860 $ 267,254 $ 113,509 $ 75,572 $ 189,081

DEPOSITS

DEPOSITS	6 Months Ended
	Jun. 30, 2019
Deposits [Abstract]
DEPOSITS	DEPOSITS A summary of time deposits is as follows: (In thousands) June 30, December 31, Time less than $100,000 $ 888,791 $ 719,689 Time $100,000 through $250,000 2,221,209 2,060,500 Time more than $250,000 971,398 507,528 Total time deposits $ 4,081,398 $ 3,287,717 Included in total deposits are brokered deposits of $1.6 billion and $1.4 billion at June 30, 2019 and December 31, 2018 , respectively. Included in total deposits are reciprocal deposits of $94.6 million and $84.4 million at June 30, 2019 and December 31, 2018 , respectively.

BORROWED FUNDS

BORROWED FUNDS	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
BORROWED FUNDS	BORROWED FUNDS Borrowed funds at June 30, 2019 and December 31, 2018 are summarized, as follows: June 30, 2019 December 31, 2018 Weighted Weighted Average Average (Dollars in thousands) Principal Rate Principal Rate Short-term borrowings: Advances from the FHLB $ 608,928 2.65 % $ 1,118,832 2.58 % Total short-term borrowings: 608,928 2.65 1,118,832 2.58 Long-term borrowings: Advances from the FHLB and other borrowings 295,886 2.36 309,466 2.17 Subordinated borrowings 74,143 7.00 74,054 7.00 Junior subordinated borrowing - Trust I 15,464 4.37 15,464 4.50 Junior subordinated borrowing - Trust II 7,320 4.11 — — Total long-term borrowings: 392,813 3.34 398,984 3.16 Total $ 1,001,741 2.92 % $ 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 June 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 June 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 June 30, 2019 include callable advances totaling $10 million and amortizing advances totaling $4.5 million . The advances outstanding at December 31, 2018 include no callable advances and amortizing advances totaling $1.4 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 June 30, 2019 is as follows: June 30, 2019 Weighted Average (In thousands, except rates) Principal Rate Fixed rate advances maturing: 2019 $ 640,219 2.59 % 2020 195,603 2.51 2021 31,476 2.49 2022 17,770 2.24 2023 and beyond 19,746 2.13 Total FHLB advances $ 904,814 2.55 % The Company did not have variable-rate FHLB advances for the periods ended June 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 $399 thousand and $461 thousand for unamortized debt issuance costs as of June 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 4.37% and 4.50% at June 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 4.11% at June 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	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES	DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES As of June 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 $0.5 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 $3.1 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 June 30, 2019 . The Company pledged collateral to derivative counterparties in the form of cash totaling $78.9 million and securities with an amortized cost of $12.0 million and a fair value of $12.0 million as of June 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 June 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 $ 9,744 10.4 2.81 % 5.09 % $ (1,583 ) Interest rate swaps on loans with commercial loan customers 1,546,563 6.7 4.47 % 3.89 % 75,114 Reverse interest rate swaps on loans with commercial loan customers 1,546,563 6.7 3.89 % 4.47 % (76,909 ) Risk participation agreements with dealer banks 303,793 7.5 343 Forward sale commitments (1) 544,475 0.2 (1,144 ) Total economic hedges 3,951,138 (4,179 ) Non-hedging derivatives: Commitments to lend (1) 471,456 0.2 9,005 Total non-hedging derivatives 471,456 9,005 Total $ 4,422,594 $ 4,826 (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 June 30, 2019 , the Company has an interest rate swap with a $10.7 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 $1.3 million as of June 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 June 30, Six Months Ended June 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 $ (222 ) $ 163 $ (343 ) $ 474 Interest rate swaps on loans with commercial loan customers: Unrealized (loss)/gain recognized in other non-interest income 42,967 (5,270 ) 64,956 (19,939 ) (Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income (1,146 ) 95 (1,283 ) 332 Reverse interest rate swaps on loans with commercial loan customers: Unrealized gain/(loss) recognized in other non-interest income (42,967 ) 5,270 (64,956 ) 19,939 Risk participation agreements: Unrealized gain recognized in other non-interest income (19 ) 7 106 23 Forward commitments: Unrealized (loss) recognized in discontinued operations 108 (658 ) (410 ) (1,567 ) Realized gain in discontinued operations (4,083 ) 1,077 (5,798 ) 4,999 Non-hedging derivatives Commitments to lend Unrealized gain recognized in discontinued operations $ 2,687 $ 7,285 $ 5,078 $ 13,816 Realized gain in discontinued operations 16,281 2,491 25,713 3,094 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 $0.5 million and $5.9 million as of June 30, 2019 and December 31, 2018 , respectively. The Company had net asset positions with its commercial banking counterparties totaling $75.9 million and $21.2 million as of June 30, 2019 and December 31, 2018 , respectively. The Company had net liability positions with its financial institution counterparties totaling $78.8 million and $18.8 million as of June 30, 2019 and December 31, 2018 , respectively. The Company had net liability positions with its commercial banking counterparties totaling $0.7 million and $9.7 million as of June 30, 2019 and December 31, 2018 . The collateral posted by the Company that covered liability positions was $78.9 million and $25.4 million as of June 30, 2019 and December 31, 2018 , respectively. The following table presents the assets and liabilities subject to an enforceable master netting arrangement as of June 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 June 30, 2019 Interest Rate Swap Agreements: Institutional counterparties $ 543 $ (14 ) $ 529 $ — $ — $ 529 Commercial counterparties 75,883 (33 ) 75,850 — — 75,850 Total $ 76,426 $ (47 ) $ 76,379 $ — $ — $ 76,379 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 June 30, 2019 Interest Rate Swap Agreements: Institutional counterparties $ (79,767 ) $ 996 $ (78,771 ) $ 11,992 $ 78,896 $ 12,117 Commercial counterparties (740 ) 5 (735 ) — — (735 ) Total $ (80,507 ) $ 1,001 $ (79,506 ) $ 11,992 $ 78,896 $ 11,382 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	6 Months Ended
	Jun. 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 June 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 June 30, 2019 lease expiration dates ranged from 1 month to 21 years . The weighted average remaining lease term for operating and finance leases at June 30, 2019 was 10.6 years and 15.5 years , respectively. The following table represents the Consolidated Balance Sheets classification of the Company’s ROU assets and lease liabilities: (In thousands) June 30, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets $ 80,591 Finance lease right-of-use assets Premises and equipment, net 7,981 Total Lease Right-of-Use Assets $ 88,572 Lease Liabilities Operating lease liabilities (1) Other liabilities $ 85,045 Finance lease liabilities Other liabilities 11,123 Total Lease Liabilities $ 96,168 (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 six months ended June 30, 2019 was $3.6 million and $7.0 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 Six Months Ended (In thousands) June 30, 2019 June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) $ 3,657 $ 7,155 Operating cash flows from finance leases 159 318 Financing cash flows from finance leases 98 196 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 8,052 87,641 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 June 30, 2019: (In thousands) Operating Leases Finance Leases 2019 $ 7,130 $ 508 2020 13,403 1,031 2021 12,157 1,031 2022 10,981 1,031 2023 9,048 1,037 Thereafter 48,570 11,296 Total undiscounted lease payments (1) 101,289 15,934 Less amounts representing interest (1) (16,244 ) (4,811 ) Lease liability (1) $ 85,045 $ 11,123
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 June 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 June 30, 2019 lease expiration dates ranged from 1 month to 21 years . The weighted average remaining lease term for operating and finance leases at June 30, 2019 was 10.6 years and 15.5 years , respectively. The following table represents the Consolidated Balance Sheets classification of the Company’s ROU assets and lease liabilities: (In thousands) June 30, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets $ 80,591 Finance lease right-of-use assets Premises and equipment, net 7,981 Total Lease Right-of-Use Assets $ 88,572 Lease Liabilities Operating lease liabilities (1) Other liabilities $ 85,045 Finance lease liabilities Other liabilities 11,123 Total Lease Liabilities $ 96,168 (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 six months ended June 30, 2019 was $3.6 million and $7.0 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 Six Months Ended (In thousands) June 30, 2019 June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) $ 3,657 $ 7,155 Operating cash flows from finance leases 159 318 Financing cash flows from finance leases 98 196 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 8,052 87,641 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 June 30, 2019: (In thousands) Operating Leases Finance Leases 2019 $ 7,130 $ 508 2020 13,403 1,031 2021 12,157 1,031 2022 10,981 1,031 2023 9,048 1,037 Thereafter 48,570 11,296 Total undiscounted lease payments (1) 101,289 15,934 Less amounts representing interest (1) (16,244 ) (4,811 ) Lease liability (1) $ 85,045 $ 11,123

CAPITAL RATIOS AND SHAREHOLDERS

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY	6 Months Ended
	Jun. 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: June 30, Regulatory December 31, Regulatory Company (consolidated) Total capital to risk weighted assets 12.9 % N/A 13.0 % N/A Common equity tier 1 capital to risk weighted assets 11.4 N/A 11.4 N/A Tier 1 capital to risk weighted assets 11.6 N/A 11.6 N/A Tier 1 capital to average assets 9.7 N/A 9.0 N/A Bank Total capital to risk weighted assets 12.1 % 8.0 % 12.2 % 8.0 % Common equity tier 1 capital to risk weighted assets 11.5 4.5 11.6 4.5 Tier 1 capital to risk weighted assets 11.5 6.0 11.6 6.0 Tier 1 capital to average assets 9.7 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 June 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 June 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 is as follows: (In thousands) June 30, December 31, Other accumulated comprehensive income, before tax: Net unrealized holding gain/(loss) on AFS securities $ 18,056 $ (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 (4,738 ) 3,814 Net unrealized tax benefit on pension plans 736 736 Accumulated other comprehensive income/(loss) $ 11,301 $ (13,470 ) The following table presents the components of other comprehensive income for the three months ended June 30, 2019 and 2018 : (In thousands) Before Tax Tax Effect Net of Tax Three Months Ended June 30 , 2019 Net unrealized holding gain on AFS securities: x Net unrealized gains arising during the period $ 19,106 $ (4,900 ) $ 14,206 Less: reclassification adjustment for (losses) realized in net income (2 ) 1 (1 ) Net unrealized holding gain on AFS securities 19,108 (4,901 ) 14,207 Other comprehensive income $ 19,108 $ (4,901 ) $ 14,207 Three Months Ended June 30 , 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (7,839 ) $ 2,001 $ (5,838 ) Less: reclassification adjustment for losses realized in net income 1 — 1 Net unrealized holding (loss) on AFS securities (7,840 ) 2,001 (5,839 ) Other comprehensive (loss) $ (7,840 ) $ 2,001 $ (5,839 ) (In thousands) Before Tax Tax Effect Net of Tax Six Months Ended June 30, 2019 Net unrealized holding gain on AFS securities: x Net unrealized gains arising during the period $ 33,327 $ (8,553 ) $ 24,774 Less: reclassification adjustment for gains realized in net income 4 (1 ) 3 Net unrealized holding gain on AFS securities 33,323 (8,552 ) 24,771 Other comprehensive income $ 33,323 $ (8,552 ) $ 24,771 Six Months Ended June 30, 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (27,001 ) $ 6,932 $ (20,069 ) Less: reclassification adjustment for losses realized in net income 1 — 1 Net unrealized holding (loss) on AFS securities (27,002 ) 6,932 (20,070 ) Other comprehensive (loss) $ (27,002 ) $ 6,932 $ (20,070 ) 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) (35,381 ) 9,954 (25,427 ) The following table presents the changes in each component of accumulated other comprehensive (loss) income, for the three and six months ended June 30, 2019 and 2018 : (In thousands) Net unrealized holding loss on AFS Securities Net unrealized holding loss on pension plans Total Three Months Ended June 30, 2019 Balance at Beginning of Period $ (889 ) $ (2,017 ) $ (2,906 ) Other comprehensive income before reclassifications 14,206 — 14,206 Less: amounts reclassified from accumulated other comprehensive income (loss) (1 ) — (1 ) Total other comprehensive income 14,207 — 14,207 Balance at End of Period $ 13,318 $ (2,017 ) $ 11,301 Three Months Ended June 30, 2018 Balance at Beginning of Period $ (13,182 ) $ (2,245 ) $ (15,427 ) Other comprehensive (loss) before reclassifications (5,838 ) — (5,838 ) Less: amounts reclassified from accumulated other comprehensive income (loss) 1 — 1 Total other comprehensive (loss) (5,839 ) — (5,839 ) Balance at End of Period $ (19,021 ) $ (2,245 ) $ (21,266 ) Six Months Ended June 30, 2019 Balance at Beginning of Period $ (11,453 ) $ (2,017 ) $ (13,470 ) Other comprehensive income before reclassifications 24,774 — 24,774 Less: amounts reclassified from accumulated other comprehensive income 3 — 3 Total other comprehensive (loss) 24,771 — 24,771 Balance at End of Period $ 13,318 $ (2,017 ) $ 11,301 Six Months Ended June 30, 2018 Balance at Beginning of Period $ 6,008 $ (1,847 ) $ 4,161 Other comprehensive gain (loss) before reclassifications (20,069 ) — (20,069 ) Less: amounts reclassified from accumulated other comprehensive income 1 — 1 Total other comprehensive (loss) income (20,070 ) — (20,070 ) 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 $ (19,021 ) $ (2,245 ) $ (21,266 ) The following table presents the amounts reclassified out of each component of accumulated other comprehensive (loss) income for the three and six months ended June 30, 2019 and 2018 : Affected Line Item in the Three Months Ended June 30, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ (2 ) $ 1 Non-interest income 1 — Tax expense (1 ) 1 Net of tax Total reclassifications for the period $ (1 ) $ 1 Net of tax Affected Line Item in the Six Months Ended June 30, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ 4 $ 1 Non-interest income (1 ) — Tax expense 3 1 Net of tax Total reclassifications for the period $ 3 $ 1 Net of tax

EARNINGS PER SHARE

EARNINGS PER SHARE	6 Months Ended
	Jun. 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 June 30, Six Months Ended June 30, (In thousands, except per share data) 2019 2018 2019 2018 Income from continuing operations $ 23,954 $ 33,711 $ 48,226 $ 59,082 Income from discontinued operations 1,494 320 857 197 Net income $ 25,448 $ 34,031 $ 49,083 $ 59,279 Average number of common shares issued 49,026 46,212 47,627 46,212 Less: average number of treasury shares 754 788 736 828 Less: average number of unvested stock award shares 354 435 384 428 Plus: average participating preferred shares 1,043 1,043 1,043 1,043 Average number of basic shares outstanding 48,961 46,032 47,550 45,999 Plus: dilutive effect of unvested stock award shares 107 152 120 176 Plus: dilutive effect of stock options outstanding 46 31 30 31 Average number of diluted shares outstanding 49,114 46,215 47,700 46,206 Basic earnings per common share: Continuing operations $ 0.49 $ 0.73 $ 1.01 $ 1.29 Discontinued operations 0.03 0.01 0.02 — Total $ 0.52 $ 0.74 $ 1.03 $ 1.29 Diluted earnings per common share: Continuing operations $ 0.49 $ 0.73 $ 1.01 $ 1.28 Discontinued operations 0.03 0.01 0.02 — Total $ 0.52 $ 0.74 $ 1.03 $ 1.28 For the six months ended June 30, 2019 , 269 thousand shares of restricted stock and 46 thousand options were anti-dilutive and therefore excluded from the earnings per share calculations. For the six months ended June 30, 2018 , 252 thousand shares of restricted stock and 33 thousand options were anti-dilutive and therefore excluded from the earnings per share calculations.

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS	6 Months Ended
	Jun. 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 six months ended June 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 131 27.91 — — Acquired — — 133 23.99 Stock options exercised — — (1 ) 13.70 Stock awards vested (127 ) 31.73 — — Forfeited (51 ) 33.22 — — Expired — — — — June 30, 2019 324 $ 32.76 163 $ 21.15 Exercisable options at June 30, 2019 163 $ 21.15 During the three and six months ended June 30, 2019, proceeds from stock option exercises totaled $15 thousand . During the three and six months ended June 30, 2018 proceeds from stock option exercises totaled $101 thousand . During the three and six months ended June 30, 2019 , there were 62 thousand and 127 thousand shares issued in connection with vested stock awards, respectively. During the three and six months ended June 30, 2018, there were 63 thousand and 150 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 $1.0 million and $1.4 million during the three months ended June 30, 2019 and 2018 , respectively. Stock-based compensation expense totaled $2.0 million and $2.8 million during the six months ended June 30, 2019 and 2018. Stock-based compensation expense is recognized over the requisite service period for all awards.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jun. 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 June 30, 2019 and December 31, 2018 , segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. June 30, 2019 Level 1 Level 2 Level 3 Total (In thousands) Inputs Inputs Inputs Fair Value Trading security $ — $ — $ 11,210 $ 11,210 Securities available for sale: Municipal bonds and obligations — 119,873 — 119,873 Agency collateralized mortgage obligations — 888,962 — 888,962 Agency residential mortgage-backed securities — 182,258 — 182,258 Agency commercial mortgage-backed securities — 60,651 — 60,651 Corporate bonds — 119,743 — 119,743 Trust preferred securities — 8,550 — 8,550 Other bonds and obligations — 30,041 — 30,041 Marketable equity securities 58,521 1,057 — 59,578 Loans held for sale (1) — 191,548 — 191,548 Derivative assets (1) — 76,764 9,005 85,769 Capitalized servicing rights (1) — — 11,206 11,206 Derivative liabilities (1) 1,144 79,731 — 80,875 (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 — 111,490 — 111,490 Trust preferred securities — 8,466 — 8,466 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 June 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 June 30, 2019 Aggregate Aggregate Less Aggregate (In thousands) Fair Value Unpaid Principal Unpaid Principal Loans held for sale - continuing operations $ 8,666 $ 8,533 $ 133 Loans held for sale - discontinued operations 182,882 177,114 5,768 Total loans held for sale $ 191,548 $ 185,647 $ 5,901 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 June 30, 2019 , were gains of $31 thousand from continuing operations and $1.4 million from discontinued operations. The changes in fair value of loans held for sale for the six months ended June 30, 2019, were gains of $91 thousand from continuing operations and $2.6 million from discontinued operations. There were no changes in fair value of loans held for sale from continuing operations for the three months ended June 30, 2018. The changes in fair value of loans held for sale from discontinued operations for the three months ended June 30, 2018 were gains of $1.3 million . The changes in fair value of loans held for sale for the six months ended June 30, 2018, were losses of $20 thousand from continuing operations and $1.1 million from discontinued operations. During the three months ended June 30, 2019, originations of loans held for sale from continuing operations totaled $17.4 million and sales of loans originated for sale from continuing operations totaled $14.5 million . During the three months ended June 30, 2018, originations of loans held for sale from continuing operations totaled $12.9 million and sales of loans originated for sale from continuing operations totaled $12.3 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 June 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 six months ended June 30, 2019 and 2018 . Assets (Liabilities) Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended June 30, 2019 March 31, 2019 $ 11,164 $ 6,318 $ — $ 11,351 Unrealized gain/(loss), net recognized in other non-interest income 219 — — — Unrealized gain/(loss), net recognized in discontinued operations — 17,117 — (1,972 ) Paydown of trading security (173 ) — — — Transfers to held for sale loans — (14,430 ) — — Additions to servicing rights — — — 1,827 June 30, 2019 $ 11,210 $ 9,005 $ — $ 11,206 Six Months Ended June 30, 2019 December 31, 2018 $ 11,212 $ 3,927 $ — $ 11,485 Unrealized gain, net recognized in other non-interest income 345 — — — Unrealized gain/(loss), net recognized in discontinued operations — 28,338 — (3,114 ) Paydown of trading security (347 ) — — — Transfers to held for sale loans — (23,260 ) — — Additions to servicing rights — — — 2,835 June 30, 2019 $ 11,210 $ 9,005 $ — $ 11,206 Unrealized gains relating to instruments still held at June 30, 2019 $ 1,466 $ 9,005 $ — — Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended June 30, 2018 March 31, 2018 $ 11,795 $ 6,531 $ — $ 5,705 Unrealized gain/(loss), net recognized in other non-interest income (148 ) — — — Unrealized gain/(loss), net recognized in discontinued operations — 12,787 — 339 Paydown of trading security (164 ) — — — Transfers to held for sale loans — (12,033 ) — — Additions to servicing rights — — — 1,795 June 30, 2018 $ 11,483 $ 7,285 $ — $ 7,839 Six Months Ended June 30, 2018 December 31, 2017 $ 12,277 $ 5,259 $ 19 $ 3,834 Unrealized gain, net recognized in other non-interest income (465 ) — (19 ) — Unrealized gain/(loss), net recognized in discontinued operations — 25,000 — 804 Paydown of trading security (329 ) — — — Transfers to held for sale loans — (22,974 ) — Additions to servicing rights — — — 3,201 June 30, 2018 $ 11,483 $ 7,285 $ — $ 7,839 Unrealized gains relating to instruments still held at June 30, 2018 $ 1,056 $ 7,285 $ — — (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) June 30, 2019 Valuation Techniques Unobservable Inputs Value Assets (Liabilities) Trading security $ 11,210 Discounted Cash Flow Discount Rate 2.28 % Commitments to lend (1) 9,005 Historical Trend Closing Ratio 72.48 % Pricing Model Origination Costs, per loan $ 3,137 Capitalized servicing rights (1) 11,206 Discounted cash flow Constant Prepayment Rate (CPR) 12.74 % Discount Rate 9.99 % Total $ 31,421 (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. June 30, 2019 December 31, 2018 Fair Value Measurement Date as of June 30, 2019 Level 3 Level 3 Level 3 (In thousands) Inputs Inputs Inputs Assets Impaired loans $ 4,614 $ 4,892 June 2019 Capitalized servicing rights 14,221 11,891 June 2019 Other real estate owned 154 — June 2019 Total $ 18,989 $ 16,783 Quantitative information about the significant unobservable inputs within Level 3 non-recurring assets is as follows: Fair Value (In thousands) June 30, 2019 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets Impaired Loans $ 4,614 Fair Value of Collateral Discounted Cash Flow - Loss Severity 25.66% to 0.11% (3.44%) Appraised Value $0.3 to $731 ($316.8) Capitalized servicing rights 14,221 Discounted Cash Flow Constant Prepayment Rate (CPR) 8.40% to 12.73% (11.50%) Discount Rate 10.00% to 12.73% (11.30%) Other Real Estate Owned 154 Fair Value of Collateral Appraised Value $49 to $105 ($87) Total $ 18,989 (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 51.16% to 0.00% (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 June 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. June 30, 2019 Carrying Fair (In thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 229,306 $ 229,306 $ 229,306 $ — $ — Trading security 11,210 11,210 — — 11,210 Marketable equity securities 59,578 59,578 58,521 1,057 — Securities available for sale 1,410,078 1,410,078 — 1,410,078 — Securities held to maturity 364,463 377,056 — 359,084 17,972 FHLB bank stock and restricted securities 59,356 N/A N/A N/A N/A Net loans 9,879,672 10,151,656 — — 10,151,656 Loans held for sale (1) 367,692 370,114 — 191,548 178,566 Accrued interest receivable 41,864 41,864 — 41,864 — Cash surrender value of bank-owned life insurance policies 227,458 227,458 — 227,458 — Derivative assets (1) 85,769 85,769 — 76,764 9,005 Financial Liabilities Total deposits $ 10,565,956 $ 10,576,006 $ — $ 10,576,006 $ — Short-term debt 608,928 608,946 — 608,946 — Long-term Federal Home Loan Bank advances 295,886 297,184 — 297,184 — Subordinated borrowings 96,927 100,924 — 100,924 — Derivative liabilities (1) 80,875 80,875 1,144 79,731 — (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	6 Months Ended
	Jun. 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 six months ended June 30, 2019 and 2018, respectively. Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Net interest income from continuing operations $ 91,595 $ 90,292 $ 177,054 $ 175,049 Provision for loan losses 3,467 6,532 7,468 12,107 Net interest income from continuing operations after provision for loan losses $ 88,128 $ 83,760 $ 169,586 $ 162,942

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	6 Months Ended
	Jun. 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	Reclassifications Certain items in prior financial statements have been reclassified to conform to the current presentation.
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. Management is working through its implementation plan which includes assessment and documentation of processes and internal controls; model development and documentation; and system configuration. This is in preparation for performing a full end to end parallel run. 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 its 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)	6 Months Ended
	Jun. 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, except earnings per share: Pro Forma (unaudited) Six Months Ended June 30, 2019 2018 Net interest income $ 195,624 $ 202,709 Non-interest income 43,732 44,228 Income available to common shareholders 60,357 67,666

DISCONTINUED OPERATIONS (Tables

DISCONTINUED OPERATIONS (Tables)	6 Months Ended
	Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Summary of Discontinued Operations	The following presents operating results of the discontinued operations of FCLS for the three and six months ended June 30, 2019 and June 30, 2018: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2019 2018 2019 2018 Interest income $ 1,818 $ 1,395 $ 2,862 $ 2,489 Interest expense 1,062 566 1,646 947 Net interest income 756 829 1,216 1,542 Non-interest income 13,246 10,407 22,059 21,035 Total net revenue 14,002 11,236 23,275 22,577 Non-interest expense 11,920 10,810 22,047 22,313 Income from discontinued operations before income taxes 2,082 426 1,228 264 Income tax expense 588 106 371 67 Net income from discontinued operations $ 1,494 $ 320 $ 857 $ 197 The following is a summary of the assets and liabilities of the discontinued operations of FCLS at June 30, 2019 and December 31, 2018: (in thousands) June 30, 2019 December 31, 2018 Assets Loans held for sale, at fair value $ 182,882 $ 94,050 Premises and equipment, net 1,710 1,867 Other assets 28,153 18,342 Total assets $ 212,745 $ 114,259 Liabilities Other liabilities $ 26,256 $ 9,597 Total liabilities $ 26,256 $ 9,597

SECURITIES AVAILABLE FOR SALE_2

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES (Tables)	6 Months Ended
	Jun. 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 June 30, 2019 Securities available for sale Municipal bonds and obligations $ 114,401 $ 5,477 $ (5 ) $ 119,873 Agency collateralized mortgage obligations 882,124 7,419 (581 ) 888,962 Agency mortgage-backed securities 182,598 739 (1,079 ) 182,258 Agency commercial mortgage-backed securities 61,275 465 (1,089 ) 60,651 Corporate bonds 119,917 880 (1,054 ) 119,743 Trust preferred securities 8,323 231 (4 ) 8,550 Other bonds and obligations 29,084 963 (6 ) 30,041 Total securities available for sale 1,397,722 16,174 (3,818 ) 1,410,078 Securities held to maturity Municipal bonds and obligations 257,232 10,835 — 268,067 Agency collateralized mortgage obligations 70,726 2,975 (115 ) 73,586 Agency mortgage-backed securities 6,758 — (57 ) 6,701 Agency commercial mortgage-backed securities 10,385 46 — 10,431 Tax advantaged economic development bonds 19,063 172 (1,263 ) 17,972 Other bonds and obligations 299 — — 299 Total securities held to maturity 364,463 14,028 (1,435 ) 377,056 Marketable equity securities 55,831 4,820 (1,073 ) 59,578 Total $ 1,818,016 $ 35,022 $ (6,326 ) $ 1,846,712 (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 112,404 342 (1,256 ) 111,490 Trust preferred securities 8,314 251 (99 ) 8,466 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 June 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 $ 15,204 $ 15,245 $ 2,875 $ 2,875 Over 1 year to 5 years 31,179 31,213 14,729 14,844 Over 5 years to 10 years 71,721 72,831 15,086 15,180 Over 10 years 153,621 158,918 243,904 253,439 Total bonds and obligations 271,725 278,207 276,594 286,338 Mortgage-backed securities 1,125,997 1,131,871 87,869 90,718 Total $ 1,397,722 $ 1,410,078 $ 364,463 $ 377,056
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 June 30, 2019 Securities available for sale Municipal bonds and obligations $ — $ — $ 5 $ 1,319 $ 5 $ 1,319 Agency collateralized mortgage obligations 72 43,755 509 103,929 581 147,684 Agency mortgage-backed securities 5 2,191 1,074 93,990 1,079 96,181 Agency commercial mortgage-backed securities — — 1,089 55,319 1,089 55,319 Corporate bonds 434 37,147 620 30,036 1,054 67,183 Trust preferred securities 4 7,163 — — 4 7,163 Other bonds and obligations — — 6 3,052 6 3,052 Total securities available for sale 515 90,256 3,303 287,645 3,818 377,901 Securities held to maturity Agency collateralized mortgage obligations — — 115 10,648 115 10,648 Agency mortgage-backed securities — — 57 6,701 57 6,701 Tax advantaged economic development bonds — — 1,263 6,729 1,263 6,729 Total securities held to maturity — — 1,435 24,078 1,435 24,078 Total $ 515 $ 90,256 $ 4,738 $ 311,723 $ 5,253 $ 401,979 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 1,249 74,434 7 2,561 1,256 76,995 Trust preferred securities 99 7,068 — — 99 7,068 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)	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Schedule of Loans	The following is a summary of total loans: June 30, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ 300,996 $ 58,497 $ 359,493 $ 327,792 $ 25,220 $ 353,012 Other commercial real estate 2,358,502 1,287,352 3,645,854 2,260,919 786,290 3,047,209 Total commercial real estate 2,659,498 1,345,849 4,005,347 2,588,711 811,510 3,400,221 Commercial and industrial loans: 1,471,766 515,531 1,987,297 1,513,538 466,508 1,980,046 Total commercial loans 4,131,264 1,861,380 5,992,644 4,102,249 1,278,018 5,380,267 Residential mortgages: 1-4 family 2,268,445 596,607 2,865,052 2,317,716 238,952 2,556,668 Construction 9,170 8,158 17,328 9,582 174 9,756 Total residential mortgages 2,277,615 604,765 2,882,380 2,327,298 239,126 2,566,424 Consumer loans: Home equity 281,254 122,576 403,830 289,961 86,719 376,680 Auto and other 604,272 58,702 662,974 647,236 72,646 719,882 Total consumer loans 885,526 181,278 1,066,804 937,197 159,365 1,096,562 Total loans $ 7,294,405 $ 2,647,423 $ 9,941,828 $ 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 June 30, (In thousands) 2019 2018 Balance at beginning of period $ 2,139 $ 10,392 Acquisitions 4,200 — Accretion (2,278 ) (6,881 ) Net reclassifications from (to) nonaccretable difference 1,464 4,517 Payments received, net (105 ) (1,724 ) Balance at end of period $ 5,420 $ 6,304 Six Months Ended June 30, (In thousands) 2019 2018 Balance at beginning of period $ 2,840 $ 11,561 Acquisitions 4,200 — Accretion (3,598 ) (10,313 ) Net reclassifications from (to) nonaccretable difference 2,129 7,049 Payments received, net (160 ) (1,912 ) Reclassification to TDR 9 — Disposals — (81 ) Balance at end of period $ 5,420 $ 6,304
Summary of Past Due Loans	The following is a summary of past due loans at June 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 > June 30, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ 300,996 $ 300,996 $ — Other commercial real estate 388 478 17,375 18,241 2,340,261 2,358,502 — Total 388 478 17,375 18,241 2,641,257 2,659,498 — Commercial and industrial loans: Total 2,071 784 9,889 12,744 1,459,022 1,471,766 1,422 Residential mortgages: 1-4 family 867 543 3,504 4,914 2,263,531 2,268,445 1,258 Construction — — — — 9,170 9,170 — Total 867 543 3,504 4,914 2,272,701 2,277,615 1,258 Consumer loans: — Home equity 191 582 979 1,752 279,502 281,254 165 Auto and other 3,498 663 1,802 5,963 598,309 604,272 — Total 3,689 1,245 2,781 7,715 877,811 885,526 165 Total $ 7,015 $ 3,050 $ 33,549 $ 43,614 $ 7,250,791 $ 7,294,405 $ 2,845 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 > June 30, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ 1,411 $ 58,497 $ — Other commercial real estate 998 695 4,432 6,125 28,212 1,287,352 2,441 Total 998 695 4,432 6,125 29,623 1,345,849 2,441 Commercial and industrial loans: Total 1,055 62 1,003 2,120 31,456 515,531 214 Residential mortgages: 1-4 family 970 488 1,408 2,866 12,050 596,607 75 Construction — — — — — 8,158 — Total 970 488 1,408 2,866 12,050 604,765 75 Consumer loans: Home equity 379 — 727 1,106 700 122,576 82 Auto and other 168 41 309 518 263 58,702 — Total 547 41 1,036 1,624 963 181,278 82 Total $ 3,570 $ 1,286 $ 7,879 $ 12,735 $ 74,092 $ 2,647,423 $ 2,812 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 June 30, 2019 and December 31, 2018: June 30, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ — $ — $ — $ — $ — $ — Other commercial real estate 17,375 1,991 19,366 17,840 2,531 20,371 Total 17,375 1,991 19,366 17,840 2,531 20,371 Commercial and industrial loans: Total 8,467 789 9,256 4,632 1,371 6,003 Residential mortgages: 1-4 family 2,246 1,333 3,579 1,374 843 2,217 Construction — — — — — — Total 2,246 1,333 3,579 1,374 843 2,217 Consumer loans: Home equity 814 645 1,459 933 751 1,684 Auto and other 1,802 309 2,111 1,699 451 2,150 Total 2,616 954 3,570 2,632 1,202 3,834 Total non-accrual loans $ 30,704 $ 5,067 $ 35,771 $ 26,478 $ 5,947 $ 32,425
Schedule of Loans Evaluated for Impairment	Loans evaluated for impairment as of June 30, 2019 and December 31, 2018 were as follows: Business Activities Loans (In thousands) Commercial Commercial and Residential Consumer Total June 30, 2019 Loans receivable: Balance at end of period Individually evaluated for impairment $ 22,035 $ 6,753 $ 2,841 $ 138 $ 31,767 Collectively evaluated for impairment 2,637,463 1,465,013 2,274,774 885,388 7,262,638 Total $ 2,659,498 $ 1,471,766 $ 2,277,615 $ 885,526 $ 7,294,405 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 June 30, 2019 Loans receivable: Balance at end of Period Individually evaluated for impairment $ 3,709 $ 372 $ 740 $ 349 $ 5,170 Purchased credit-impaired loans 29,623 31,456 12,050 963 74,092 Collectively evaluated for impairment 1,312,517 483,703 591,975 179,966 2,568,161 Total $ 1,345,849 $ 515,531 $ 604,765 $ 181,278 $ 2,647,423 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 June 30, 2019 and December 31, 2018: Business Activities Loans June 30, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate $ 21,538 $ 33,028 $ — Commercial and industrial loans 5,319 10,807 — Residential mortgages - 1-4 family 1,244 1,407 — Consumer - home equity 35 240 — Consumer - other — — — With an allowance recorded: Other commercial real estate $ 513 $ 525 $ 7 Commercial and industrial loans 1,343 1,349 42 Residential mortgages - 1-4 family 1,613 1,739 78 Consumer - home equity 92 101 7 Consumer - other 11 11 — Total Commercial real estate $ 22,051 $ 33,553 $ 7 Commercial and industrial loans 6,662 12,156 42 Residential mortgages 2,857 3,146 78 Consumer 138 352 7 Total impaired loans $ 31,708 $ 49,207 $ 134 (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 June 30, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 2,664 $ 5,544 $ — Commercial and industrial loans 343 594 — Residential mortgages - 1-4 family 658 656 — Consumer - home equity 243 1,448 — Consumer - other 16 14 — With an allowance recorded: Other commercial real estate loans $ 1,066 $ 1,071 $ 84 Commercial and industrial loans 29 30 — Residential mortgages - 1-4 family 88 113 8 Consumer - home equity 50 50 — Consumer - other 41 39 7 Total x Commercial real estate $ 3,730 $ 6,615 $ 84 Commercial and industrial loans 372 624 — Residential mortgages 746 769 8 Consumer 350 1,551 7 Total impaired loans $ 5,198 $ 9,559 $ 99 (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 June 30, 2019 and 2018: Business Activities Loans Six Months Ended Six Months Ended (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 20,877 $ 213 $ 29,092 $ 326 Commercial and industrial loans 1,775 304 4,467 201 Residential mortgages - 1-4 family 574 23 942 26 Consumer - home equity 196 1 1,754 4 Consumer - other — — — — With an allowance recorded: Other commercial real estate loans $ 569 $ 12 $ 1,786 $ 47 Commercial and industrial loans 1,468 64 1,279 83 Residential mortgages - 1-4 family 1,633 37 1,409 32 Consumer - home equity 95 3 45 1 Consumer - other 12 — 16 — Total Commercial real estate $ 21,446 $ 225 $ 30,878 $ 373 Commercial and industrial loans 3,243 368 5,746 284 Residential mortgages 2,207 60 2,351 58 Consumer loans 303 4 1,815 5 Total impaired loans $ 27,199 $ 657 $ 40,790 $ 720 Acquired Loans Six Months Ended June 30, 2019 Six Months Ended June 30, 2018 (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 2,607 $ 82 $ 2,306 $ 111 Commercial and industrial loans 522 32 349 27 Residential mortgages - 1-4 family 362 12 1,505 6 Consumer - home equity 557 5 760 — Consumer - other 5 — 17 1 With an allowance recorded: Other commercial real estate loans $ 965 $ 33 $ 3,020 $ 89 Commercial and industrial loans 30 1 287 17 Residential mortgages - 1-4 family 90 4 77 2 Consumer - home equity 50 1 320 5 Consumer - other 42 1 — — Total Commercial real estate $ 3,572 $ 115 $ 5,326 $ 200 Commercial and industrial loans 552 33 636 44 Residential mortgages 452 16 1,582 8 Consumer loans 654 7 1,097 6 Total impaired loans $ 5,230 $ 171 $ 8,641 $ 258
Schedule of Recorded Investment and Number of Modifications for TDRs Identified During the Period	The following tables include the recorded investment and number of modifications identified during the three and six months ended June 30, 2019 and June 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 six months ended June 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 June 30, 2019 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate — $ — $ — Commercial and industrial 2 282 279 Total 2 $ 282 $ 279 Six Months Ended June 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 Total 5 $ 620 $ 617 Three Months Ended June 30, 2018 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial and industrial — $ — $ — Residential - 1-4 Family — — — Total — $ — $ — Six Months Ended June 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 1 118 118 Total 5 $ 2,113 $ 2,042 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. There were no TDRs that defaulted within 12 months of modifications during the three and six months ended June 30, 2019. For the three and six months ended June 30, 2018, there were two loans that were restructured that had subsequently defaulted during the period. Modifications that Subsequently Defaulted Three Months Ended June 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 Modifications that Subsequently Defaulted Six Months Ended June 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
Schedule of TDR Activity	The following table presents the Company’s TDR activity for the three and six months ended June 30, 2019 and 2018: Three Months Ended June 30, (In thousands) 2019 2018 Balance at beginning of the period $ 25,185 $ 43,105 Principal payments (375 ) (2,511 ) TDR status change (1) — — Other reductions (2) — (7,088 ) Newly identified TDRs 279 — Balance at end of the period $ 25,089 $ 33,506 Six Months Ended June 30, (In thousands) 2019 2018 Balance at beginning of the period $ 27,415 $ 41,990 Principal payments (1,788 ) (3,150 ) TDR status change (1) — — Other reductions (2) (1,155 ) (7,376 ) Newly identified TDRs 617 2,042 Balance at end of the period $ 25,089 $ 33,506 _________________________________ (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)	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Schedule of Activity in the Allowance for Loan Losses	Activity in the allowance for loan losses for the three and six months ended June 30, 2019 and 2018 was as follows: At or for the three months ended June 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 22,521 $ 18,247 $ 9,209 $ 6,235 $ 56,212 Charged-off loans 702 1,180 206 857 2,945 Recoveries on charged-off loans 67 119 43 79 308 Provision/(releases) for loan losses 522 1,663 (212 ) (116 ) 1,857 Balance at end of period $ 22,408 $ 18,849 $ 8,834 $ 5,341 $ 55,432 At or for the six months ended June 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 1,958 2,856 248 1,776 6,838 Recoveries on charged-off loans 275 426 58 133 892 Provision/(releases) for loan losses 2,359 4,775 (1,511 ) (384 ) 5,239 Balance at end of period $ 22,408 $ 18,849 $ 8,834 $ 5,341 $ 55,432 At or for the three months ended June 30, 2018 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 17,841 $ 13,229 $ 8,598 $ 7,609 $ 47,277 Charged-off loans 1,392 1,706 27 837 3,962 Recoveries on charged-off loans 26 447 6 135 614 Provision/(releases) for loan losses 2,676 2,685 853 171 6,385 Balance at end of period $ 19,151 $ 14,655 $ 9,430 $ 7,078 $ 50,314 At or for the six months ended June 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 1,498 2,596 27 1,777 5,898 Recoveries on charged-off loans 49 491 6 209 755 Provision/(releases) for loan losses 3,757 2,910 31 2,839 9,537 Balance at end of period $ 19,151 $ 14,655 $ 9,430 $ 7,078 $ 50,314 At or for the three months ended June 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,910 $ 879 $ 622 $ 415 $ 5,826 Charged-off loans 624 109 31 257 1,021 Recoveries on charged-off loans 24 175 55 55 309 Provision/(releases) for loan losses 1,252 (75 ) 236 197 1,610 Balance at end of period $ 4,562 $ 870 $ 882 $ 410 $ 6,724 At or for the six months ended June 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 804 371 104 428 1,707 Recoveries on charged-off loans 500 226 60 86 872 Provision/(releases) for loan losses 1,713 (49 ) 296 269 2,229 Balance at end of period $ 4,562 $ 870 $ 882 $ 410 $ 6,724 At or for the three months ended June 30, 2018 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Balance at beginning of period $ 3,995 $ 1,243 $ 1,046 $ 298 $ 6,582 Charged-off loans 972 — 622 164 1,758 Recoveries on charged-off loans 259 66 11 304 640 Provision/(releases) for loan losses 100 (182 ) 183 46 147 Balance at end of period $ 3,382 $ 1,127 $ 618 $ 484 $ 5,611 At or for the six months ended June 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 1,712 155 1,053 693 3,613 Recoveries on charged-off loans 265 95 36 344 740 Provision/(releases) for loan losses 973 62 1,037 498 2,570 Balance at end of period $ 3,382 $ 1,127 $ 618 $ 484 $ 5,611 The following tables present a summary of the allowance for loan losses as of June 30, 2019 and December 31, 2018: At June 30, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 7 42 78 7 134 Collectively evaluated for impairment 22,401 18,807 8,756 5,334 55,298 Total $ 22,408 $ 18,849 $ 8,834 $ 5,341 $ 55,432 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 June 30, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 84 — 8 7 99 Collectively evaluated for impairment 4,478 870 874 403 6,625 Total $ 4,562 $ 870 $ 882 $ 410 $ 6,724 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 June 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) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Grade: Pass $ 300,996 $ 327,792 $ 2,283,244 $ 2,198,129 $ 2,584,240 $ 2,525,921 Special mention — — 24,154 9,805 24,154 9,805 Substandard — — 51,104 52,985 51,104 52,985 Total $ 300,996 $ 327,792 $ 2,358,502 $ 2,260,919 $ 2,659,498 $ 2,588,711 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total comm. and industrial loans (In thousands) June 30, 2019 December 31, 2018 Grade: Pass $ 1,385,702 $ 1,469,139 Special mention 53,543 14,279 Substandard 31,617 29,176 Doubtful 904 944 Total $ 1,471,766 $ 1,513,538 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Grade: Pass $ 2,264,398 $ 2,314,657 $ 9,170 $ 9,582 $ 2,273,568 $ 2,324,239 Special mention 543 1,619 — — 543 1,619 Substandard 3,504 1,440 — — 3,504 1,440 Total $ 2,268,445 $ 2,317,716 $ 9,170 $ 9,582 $ 2,277,615 $ 2,327,298 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Performing $ 280,440 $ 289,028 $ 602,469 $ 645,537 $ 882,909 $ 934,565 Nonperforming 814 933 1,803 1,699 2,617 2,632 Total $ 281,254 $ 289,961 $ 604,272 $ 647,236 $ 885,526 $ 937,197 Acquired Loans Commercial Real Estate Credit Risk Profile by Creditworthiness Category Construction Real Estate Total commercial real estate (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Grade: Pass $ 56,384 $ 24,519 $ 1,231,162 $ 743,684 $ 1,287,546 $ 768,203 Special mention 1,411 — 14,147 9,086 15,558 9,086 Substandard 702 701 42,043 33,520 42,745 34,221 Total $ 58,497 $ 25,220 $ 1,287,352 $ 786,290 $ 1,345,849 $ 811,510 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total comm. and industrial loans (In thousands) June 30, 2019 December 31, 2018 Grade: Pass $ 483,151 $ 439,602 Special mention 12,893 11,374 Substandard 19,487 15,532 Total $ 515,531 $ 466,508 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Grade: Pass $ 590,578 $ 235,173 $ 8,158 $ 174 $ 598,736 $ 235,347 Special mention 696 144 — — 696 144 Substandard 5,333 3,635 — — 5,333 3,635 Total $ 596,607 $ 238,952 $ 8,158 $ 174 $ 604,765 $ 239,126 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Performing $ 121,931 $ 85,968 $ 58,393 $ 72,195 $ 180,324 $ 158,163 Nonperforming 645 751 309 451 954 1,202 Total $ 122,576 $ 86,719 $ 58,702 $ 72,646 $ 181,278 $ 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 June 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. June 30, 2019 December 31, 2018 (In thousands) Business Acquired Loans Total Business Acquired Loans Total Non-Accrual $ 30,704 $ 5,067 $ 35,771 $ 26,478 $ 5,947 $ 32,425 Substandard Accruing 59,206 63,606 122,812 60,698 48,792 109,490 Total Classified 89,910 68,673 158,583 87,176 54,739 141,915 Special Mention 79,484 29,187 108,671 26,333 20,833 47,166 Total Criticized $ 169,394 $ 97,860 $ 267,254 $ 113,509 $ 75,572 $ 189,081

DEPOSITS (Tables)

DEPOSITS (Tables)	6 Months Ended
	Jun. 30, 2019
Deposits [Abstract]
Summary of Time Deposits	A summary of time deposits is as follows: (In thousands) June 30, December 31, Time less than $100,000 $ 888,791 $ 719,689 Time $100,000 through $250,000 2,221,209 2,060,500 Time more than $250,000 971,398 507,528 Total time deposits $ 4,081,398 $ 3,287,717

BORROWED FUNDS (Tables)

BORROWED FUNDS (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Schedule of Borrowed Funds	Borrowed funds at June 30, 2019 and December 31, 2018 are summarized, as follows: June 30, 2019 December 31, 2018 Weighted Weighted Average Average (Dollars in thousands) Principal Rate Principal Rate Short-term borrowings: Advances from the FHLB $ 608,928 2.65 % $ 1,118,832 2.58 % Total short-term borrowings: 608,928 2.65 1,118,832 2.58 Long-term borrowings: Advances from the FHLB and other borrowings 295,886 2.36 309,466 2.17 Subordinated borrowings 74,143 7.00 74,054 7.00 Junior subordinated borrowing - Trust I 15,464 4.37 15,464 4.50 Junior subordinated borrowing - Trust II 7,320 4.11 — — Total long-term borrowings: 392,813 3.34 398,984 3.16 Total $ 1,001,741 2.92 % $ 1,517,816 2.73 %
Summary of Maturities of FHLBB Advances	A summary of maturities of FHLB advances as of June 30, 2019 is as follows: June 30, 2019 Weighted Average (In thousands, except rates) Principal Rate Fixed rate advances maturing: 2019 $ 640,219 2.59 % 2020 195,603 2.51 2021 31,476 2.49 2022 17,770 2.24 2023 and beyond 19,746 2.13 Total FHLB advances $ 904,814 2.55 %

DERIVATIVE INSTRUMENTS AND HE_2

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables)	6 Months Ended
	Jun. 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 June 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 $ 9,744 10.4 2.81 % 5.09 % $ (1,583 ) Interest rate swaps on loans with commercial loan customers 1,546,563 6.7 4.47 % 3.89 % 75,114 Reverse interest rate swaps on loans with commercial loan customers 1,546,563 6.7 3.89 % 4.47 % (76,909 ) Risk participation agreements with dealer banks 303,793 7.5 343 Forward sale commitments (1) 544,475 0.2 (1,144 ) Total economic hedges 3,951,138 (4,179 ) Non-hedging derivatives: Commitments to lend (1) 471,456 0.2 9,005 Total non-hedging derivatives 471,456 9,005 Total $ 4,422,594 $ 4,826 (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 June 30, Six Months Ended June 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 $ (222 ) $ 163 $ (343 ) $ 474 Interest rate swaps on loans with commercial loan customers: Unrealized (loss)/gain recognized in other non-interest income 42,967 (5,270 ) 64,956 (19,939 ) (Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income (1,146 ) 95 (1,283 ) 332 Reverse interest rate swaps on loans with commercial loan customers: Unrealized gain/(loss) recognized in other non-interest income (42,967 ) 5,270 (64,956 ) 19,939 Risk participation agreements: Unrealized gain recognized in other non-interest income (19 ) 7 106 23 Forward commitments: Unrealized (loss) recognized in discontinued operations 108 (658 ) (410 ) (1,567 ) Realized gain in discontinued operations (4,083 ) 1,077 (5,798 ) 4,999 Non-hedging derivatives Commitments to lend Unrealized gain recognized in discontinued operations $ 2,687 $ 7,285 $ 5,078 $ 13,816 Realized gain in discontinued operations 16,281 2,491 25,713 3,094
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 June 30, 2019 Interest Rate Swap Agreements: Institutional counterparties $ 543 $ (14 ) $ 529 $ — $ — $ 529 Commercial counterparties 75,883 (33 ) 75,850 — — 75,850 Total $ 76,426 $ (47 ) $ 76,379 $ — $ — $ 76,379
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 June 30, 2019 Interest Rate Swap Agreements: Institutional counterparties $ (79,767 ) $ 996 $ (78,771 ) $ 11,992 $ 78,896 $ 12,117 Commercial counterparties (740 ) 5 (735 ) — — (735 ) Total $ (80,507 ) $ 1,001 $ (79,506 ) $ 11,992 $ 78,896 $ 11,382

LEASES (Tables)

LEASES (Tables)	6 Months Ended
	Jun. 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) June 30, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets $ 80,591 Finance lease right-of-use assets Premises and equipment, net 7,981 Total Lease Right-of-Use Assets $ 88,572 Lease Liabilities Operating lease liabilities (1) Other liabilities $ 85,045 Finance lease liabilities Other liabilities 11,123 Total Lease Liabilities $ 96,168 (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 Six Months Ended (In thousands) June 30, 2019 June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) $ 3,657 $ 7,155 Operating cash flows from finance leases 159 318 Financing cash flows from finance leases 98 196 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 8,052 87,641 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 June 30, 2019: (In thousands) Operating Leases Finance Leases 2019 $ 7,130 $ 508 2020 13,403 1,031 2021 12,157 1,031 2022 10,981 1,031 2023 9,048 1,037 Thereafter 48,570 11,296 Total undiscounted lease payments (1) 101,289 15,934 Less amounts representing interest (1) (16,244 ) (4,811 ) Lease liability (1) $ 85,045 $ 11,123 (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 June 30, 2019: (In thousands) Operating Leases Finance Leases 2019 $ 7,130 $ 508 2020 13,403 1,031 2021 12,157 1,031 2022 10,981 1,031 2023 9,048 1,037 Thereafter 48,570 11,296 Total undiscounted lease payments (1) 101,289 15,934 Less amounts representing interest (1) (16,244 ) (4,811 ) Lease liability (1) $ 85,045 $ 11,123 (1) Includes discontinued operations.

CAPITAL RATIOS AND SHAREHOLDE_2

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY (Tables)	6 Months Ended
	Jun. 30, 2019
Stockholders' Equity Note [Abstract]
Schedule of Actual and Required Capital Ratios	The actual and required capital ratios were as follows: June 30, Regulatory December 31, Regulatory Company (consolidated) Total capital to risk weighted assets 12.9 % N/A 13.0 % N/A Common equity tier 1 capital to risk weighted assets 11.4 N/A 11.4 N/A Tier 1 capital to risk weighted assets 11.6 N/A 11.6 N/A Tier 1 capital to average assets 9.7 N/A 9.0 N/A Bank Total capital to risk weighted assets 12.1 % 8.0 % 12.2 % 8.0 % Common equity tier 1 capital to risk weighted assets 11.5 4.5 11.6 4.5 Tier 1 capital to risk weighted assets 11.5 6.0 11.6 6.0 Tier 1 capital to average assets 9.7 4.0 9.0 4.0
Schedule of Components of Accumulated Other Comprehensive Income	Components of accumulated other comprehensive income is as follows: (In thousands) June 30, December 31, Other accumulated comprehensive income, before tax: Net unrealized holding gain/(loss) on AFS securities $ 18,056 $ (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 (4,738 ) 3,814 Net unrealized tax benefit on pension plans 736 736 Accumulated other comprehensive income/(loss) $ 11,301 $ (13,470 )
Schedule of Components of Other Comprehensive Income	The following table presents the components of other comprehensive income for the three months ended June 30, 2019 and 2018 : (In thousands) Before Tax Tax Effect Net of Tax Three Months Ended June 30 , 2019 Net unrealized holding gain on AFS securities: x Net unrealized gains arising during the period $ 19,106 $ (4,900 ) $ 14,206 Less: reclassification adjustment for (losses) realized in net income (2 ) 1 (1 ) Net unrealized holding gain on AFS securities 19,108 (4,901 ) 14,207 Other comprehensive income $ 19,108 $ (4,901 ) $ 14,207 Three Months Ended June 30 , 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (7,839 ) $ 2,001 $ (5,838 ) Less: reclassification adjustment for losses realized in net income 1 — 1 Net unrealized holding (loss) on AFS securities (7,840 ) 2,001 (5,839 ) Other comprehensive (loss) $ (7,840 ) $ 2,001 $ (5,839 ) (In thousands) Before Tax Tax Effect Net of Tax Six Months Ended June 30, 2019 Net unrealized holding gain on AFS securities: x Net unrealized gains arising during the period $ 33,327 $ (8,553 ) $ 24,774 Less: reclassification adjustment for gains realized in net income 4 (1 ) 3 Net unrealized holding gain on AFS securities 33,323 (8,552 ) 24,771 Other comprehensive income $ 33,323 $ (8,552 ) $ 24,771 Six Months Ended June 30, 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (27,001 ) $ 6,932 $ (20,069 ) Less: reclassification adjustment for losses realized in net income 1 — 1 Net unrealized holding (loss) on AFS securities (27,002 ) 6,932 (20,070 ) Other comprehensive (loss) $ (27,002 ) $ 6,932 $ (20,070 ) 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) (35,381 ) 9,954 (25,427 )
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 (loss) income, for the three and six months ended June 30, 2019 and 2018 : (In thousands) Net unrealized holding loss on AFS Securities Net unrealized holding loss on pension plans Total Three Months Ended June 30, 2019 Balance at Beginning of Period $ (889 ) $ (2,017 ) $ (2,906 ) Other comprehensive income before reclassifications 14,206 — 14,206 Less: amounts reclassified from accumulated other comprehensive income (loss) (1 ) — (1 ) Total other comprehensive income 14,207 — 14,207 Balance at End of Period $ 13,318 $ (2,017 ) $ 11,301 Three Months Ended June 30, 2018 Balance at Beginning of Period $ (13,182 ) $ (2,245 ) $ (15,427 ) Other comprehensive (loss) before reclassifications (5,838 ) — (5,838 ) Less: amounts reclassified from accumulated other comprehensive income (loss) 1 — 1 Total other comprehensive (loss) (5,839 ) — (5,839 ) Balance at End of Period $ (19,021 ) $ (2,245 ) $ (21,266 ) Six Months Ended June 30, 2019 Balance at Beginning of Period $ (11,453 ) $ (2,017 ) $ (13,470 ) Other comprehensive income before reclassifications 24,774 — 24,774 Less: amounts reclassified from accumulated other comprehensive income 3 — 3 Total other comprehensive (loss) 24,771 — 24,771 Balance at End of Period $ 13,318 $ (2,017 ) $ 11,301 Six Months Ended June 30, 2018 Balance at Beginning of Period $ 6,008 $ (1,847 ) $ 4,161 Other comprehensive gain (loss) before reclassifications (20,069 ) — (20,069 ) Less: amounts reclassified from accumulated other comprehensive income 1 — 1 Total other comprehensive (loss) income (20,070 ) — (20,070 ) 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 $ (19,021 ) $ (2,245 ) $ (21,266 )
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 (loss) income for the three and six months ended June 30, 2019 and 2018 : Affected Line Item in the Three Months Ended June 30, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ (2 ) $ 1 Non-interest income 1 — Tax expense (1 ) 1 Net of tax Total reclassifications for the period $ (1 ) $ 1 Net of tax Affected Line Item in the Six Months Ended June 30, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ 4 $ 1 Non-interest income (1 ) — Tax expense 3 1 Net of tax Total reclassifications for the period $ 3 $ 1 Net of tax

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	6 Months Ended
	Jun. 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 June 30, Six Months Ended June 30, (In thousands, except per share data) 2019 2018 2019 2018 Income from continuing operations $ 23,954 $ 33,711 $ 48,226 $ 59,082 Income from discontinued operations 1,494 320 857 197 Net income $ 25,448 $ 34,031 $ 49,083 $ 59,279 Average number of common shares issued 49,026 46,212 47,627 46,212 Less: average number of treasury shares 754 788 736 828 Less: average number of unvested stock award shares 354 435 384 428 Plus: average participating preferred shares 1,043 1,043 1,043 1,043 Average number of basic shares outstanding 48,961 46,032 47,550 45,999 Plus: dilutive effect of unvested stock award shares 107 152 120 176 Plus: dilutive effect of stock options outstanding 46 31 30 31 Average number of diluted shares outstanding 49,114 46,215 47,700 46,206 Basic earnings per common share: Continuing operations $ 0.49 $ 0.73 $ 1.01 $ 1.29 Discontinued operations 0.03 0.01 0.02 — Total $ 0.52 $ 0.74 $ 1.03 $ 1.29 Diluted earnings per common share: Continuing operations $ 0.49 $ 0.73 $ 1.01 $ 1.28 Discontinued operations 0.03 0.01 0.02 — Total $ 0.52 $ 0.74 $ 1.03 $ 1.28

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS (Tables)	6 Months Ended
	Jun. 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 six months ended June 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 131 27.91 — — Acquired — — 133 23.99 Stock options exercised — — (1 ) 13.70 Stock awards vested (127 ) 31.73 — — Forfeited (51 ) 33.22 — — Expired — — — — June 30, 2019 324 $ 32.76 163 $ 21.15 Exercisable options at June 30, 2019 163 $ 21.15

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jun. 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 June 30, 2019 and December 31, 2018 , segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. June 30, 2019 Level 1 Level 2 Level 3 Total (In thousands) Inputs Inputs Inputs Fair Value Trading security $ — $ — $ 11,210 $ 11,210 Securities available for sale: Municipal bonds and obligations — 119,873 — 119,873 Agency collateralized mortgage obligations — 888,962 — 888,962 Agency residential mortgage-backed securities — 182,258 — 182,258 Agency commercial mortgage-backed securities — 60,651 — 60,651 Corporate bonds — 119,743 — 119,743 Trust preferred securities — 8,550 — 8,550 Other bonds and obligations — 30,041 — 30,041 Marketable equity securities 58,521 1,057 — 59,578 Loans held for sale (1) — 191,548 — 191,548 Derivative assets (1) — 76,764 9,005 85,769 Capitalized servicing rights (1) — — 11,206 11,206 Derivative liabilities (1) 1,144 79,731 — 80,875 (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 — 111,490 — 111,490 Trust preferred securities — 8,466 — 8,466 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 June 30, 2019 Aggregate Aggregate Less Aggregate (In thousands) Fair Value Unpaid Principal Unpaid Principal Loans held for sale - continuing operations $ 8,666 $ 8,533 $ 133 Loans held for sale - discontinued operations 182,882 177,114 5,768 Total loans held for sale $ 191,548 $ 185,647 $ 5,901 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 six months ended June 30, 2019 and 2018 . Assets (Liabilities) Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended June 30, 2019 March 31, 2019 $ 11,164 $ 6,318 $ — $ 11,351 Unrealized gain/(loss), net recognized in other non-interest income 219 — — — Unrealized gain/(loss), net recognized in discontinued operations — 17,117 — (1,972 ) Paydown of trading security (173 ) — — — Transfers to held for sale loans — (14,430 ) — — Additions to servicing rights — — — 1,827 June 30, 2019 $ 11,210 $ 9,005 $ — $ 11,206 Six Months Ended June 30, 2019 December 31, 2018 $ 11,212 $ 3,927 $ — $ 11,485 Unrealized gain, net recognized in other non-interest income 345 — — — Unrealized gain/(loss), net recognized in discontinued operations — 28,338 — (3,114 ) Paydown of trading security (347 ) — — — Transfers to held for sale loans — (23,260 ) — — Additions to servicing rights — — — 2,835 June 30, 2019 $ 11,210 $ 9,005 $ — $ 11,206 Unrealized gains relating to instruments still held at June 30, 2019 $ 1,466 $ 9,005 $ — — Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended June 30, 2018 March 31, 2018 $ 11,795 $ 6,531 $ — $ 5,705 Unrealized gain/(loss), net recognized in other non-interest income (148 ) — — — Unrealized gain/(loss), net recognized in discontinued operations — 12,787 — 339 Paydown of trading security (164 ) — — — Transfers to held for sale loans — (12,033 ) — — Additions to servicing rights — — — 1,795 June 30, 2018 $ 11,483 $ 7,285 $ — $ 7,839 Six Months Ended June 30, 2018 December 31, 2017 $ 12,277 $ 5,259 $ 19 $ 3,834 Unrealized gain, net recognized in other non-interest income (465 ) — (19 ) — Unrealized gain/(loss), net recognized in discontinued operations — 25,000 — 804 Paydown of trading security (329 ) — — — Transfers to held for sale loans — (22,974 ) — Additions to servicing rights — — — 3,201 June 30, 2018 $ 11,483 $ 7,285 $ — $ 7,839 Unrealized gains relating to instruments still held at June 30, 2018 $ 1,056 $ 7,285 $ — — (1) Classified as assets from discontinued operations on the consolidated balance sheets.
Schedule of Quantitative Information About the Significant Unobservable Inputs Within Level 3	Quantitative information about the significant unobservable inputs within Level 3 recurring assets and liabilities is as follows: Fair Value Significant Unobservable Input (In thousands) June 30, 2019 Valuation Techniques Unobservable Inputs Value Assets (Liabilities) Trading security $ 11,210 Discounted Cash Flow Discount Rate 2.28 % Commitments to lend (1) 9,005 Historical Trend Closing Ratio 72.48 % Pricing Model Origination Costs, per loan $ 3,137 Capitalized servicing rights (1) 11,206 Discounted cash flow Constant Prepayment Rate (CPR) 12.74 % Discount Rate 9.99 % Total $ 31,421 (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. June 30, 2019 December 31, 2018 Fair Value Measurement Date as of June 30, 2019 Level 3 Level 3 Level 3 (In thousands) Inputs Inputs Inputs Assets Impaired loans $ 4,614 $ 4,892 June 2019 Capitalized servicing rights 14,221 11,891 June 2019 Other real estate owned 154 — June 2019 Total $ 18,989 $ 16,783
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) June 30, 2019 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets Impaired Loans $ 4,614 Fair Value of Collateral Discounted Cash Flow - Loss Severity 25.66% to 0.11% (3.44%) Appraised Value $0.3 to $731 ($316.8) Capitalized servicing rights 14,221 Discounted Cash Flow Constant Prepayment Rate (CPR) 8.40% to 12.73% (11.50%) Discount Rate 10.00% to 12.73% (11.30%) Other Real Estate Owned 154 Fair Value of Collateral Appraised Value $49 to $105 ($87) Total $ 18,989 (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 51.16% to 0.00% (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. June 30, 2019 Carrying Fair (In thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 229,306 $ 229,306 $ 229,306 $ — $ — Trading security 11,210 11,210 — — 11,210 Marketable equity securities 59,578 59,578 58,521 1,057 — Securities available for sale 1,410,078 1,410,078 — 1,410,078 — Securities held to maturity 364,463 377,056 — 359,084 17,972 FHLB bank stock and restricted securities 59,356 N/A N/A N/A N/A Net loans 9,879,672 10,151,656 — — 10,151,656 Loans held for sale (1) 367,692 370,114 — 191,548 178,566 Accrued interest receivable 41,864 41,864 — 41,864 — Cash surrender value of bank-owned life insurance policies 227,458 227,458 — 227,458 — Derivative assets (1) 85,769 85,769 — 76,764 9,005 Financial Liabilities Total deposits $ 10,565,956 $ 10,576,006 $ — $ 10,576,006 $ — Short-term debt 608,928 608,946 — 608,946 — Long-term Federal Home Loan Bank advances 295,886 297,184 — 297,184 — Subordinated borrowings 96,927 100,924 — 100,924 — Derivative liabilities (1) 80,875 80,875 1,144 79,731 — (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)	6 Months Ended
	Jun. 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 six months ended June 30, 2019 and 2018, respectively. Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Net interest income from continuing operations $ 91,595 $ 90,292 $ 177,054 $ 175,049 Provision for loan losses 3,467 6,532 7,468 12,107 Net interest income from continuing operations after provision for loan losses $ 88,128 $ 83,760 $ 169,586 $ 162,942

BASIS OF PRESENTATION - Additio

BASIS OF PRESENTATION - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease, right-of-use asset	$ 88,572
Lease, liability	$ 96,168
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. $ / shares in Units, shares in Thousands	May 17, 2019USD ($)branch$ / sharesshares	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)
Business Acquisition [Line Items]
Equity interest issued or issuable, shares converted (in shares) | shares	11,858
Equity interest issued or issuable, share exchange ratio	0.48
Equity interest issued or issuable, shares issued (in shares) | shares	5,691
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 | $		$ 11,300,000	$ 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
	Jun. 30, 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	Dec. 31, 2018
Recognized amounts of identifiable assets acquired and (liabilities) assumed, at fair value:
Goodwill		$ 554,703	$ 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
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	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
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	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	Jun. 30, 2019	Dec. 31, 2018
Assets
Total assets	$ 212,745	$ 114,259
Liabilities
Total liabilities	26,256	9,597
First Choice Loan Services, Inc. | Discontinued Operations, Held-for-sale
Assets
Loans held for sale, at fair value	182,882	94,050
Premises and equipment, net	1,710	1,867
Other assets	28,153	18,342
Total assets	212,745	114,259
Liabilities
Other liabilities	26,256	9,597
Total liabilities	$ 26,256	$ 9,597

ACQUISITIONS - Provisional Info

ACQUISITIONS - Provisional Information about the Savings Institute Acquired Loan Portfolio (Details) - USD ($) $ in Thousands	May 17, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Interest component of expected cash flows (accretable discount)		$ (2,278)	$ (6,881)	$ (3,598)	$ (10,313)
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
Interest component of expected cash flows (accretable discount)	(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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes	$ 2,082	$ 426	$ 1,228	$ 264
Income tax expense	588	106	371	67
Net income from discontinued operations	1,494	320	857	197
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	1,818	1,395	2,862	2,489
Interest expense	1,062	566	1,646	947
Net interest income	756	829	1,216	1,542
Non-interest income	13,246	10,407	22,059	21,035
Total net revenue	14,002	11,236	23,275	22,577
Non-interest expense	11,920	10,810	22,047	22,313
Income from discontinued operations before income taxes	2,082	426	1,228	264
Income tax expense	588	106	371	67
Net income from discontinued operations	$ 1,494	$ 320	$ 857	$ 197

ACQUISITIONS - Pro Forma Inform

ACQUISITIONS - Pro Forma Information (Details) - SI Financial Group, Inc. - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Net interest income	$ 195,624	$ 202,709
Non-interest income	43,732	44,228
Income available to common shareholders	$ 60,357	$ 67,666

TRADING SECURITY (Details)

TRADING SECURITY (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Amortized cost	$ 9,700	$ 10,100
Trading security, at fair value	$ 11,210	$ 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	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Securities available for sale
Amortized Cost	$ 1,397,722	$ 1,421,273
Gross Unrealized Gains	16,174	4,065
Gross Unrealized Losses	(3,818)	(25,691)
Fair Value	1,410,078	1,399,647
Securities held to maturity
Amortized Cost	364,463	373,763
Gross Unrealized Gains	14,028	4,124
Gross Unrealized Losses	(1,435)	(6,663)
Fair Value	377,056	371,224
Marketable equity securities, amortized cost	55,831	55,471
Marketable equity securities, gross unrealized gains	4,820	4,370
Marketable equity securities, gross unrealized losses	(1,073)	(3,203)
Marketable equity securities, fair value	59,578	56,638
Total, amortized cost basis	1,818,016	1,850,507
Total, gross unrealized gain	35,022	12,559
Total, gross unrealized loss	(6,326)	(35,557)
Total, fair value	1,846,712	1,827,509
Municipal bonds and obligations
Securities available for sale
Amortized Cost	114,401	109,648
Gross Unrealized Gains	5,477	2,272
Gross Unrealized Losses	(5)	(713)
Fair Value	119,873	111,207
Securities held to maturity
Amortized Cost	257,232	264,524
Gross Unrealized Gains	10,835	3,569
Gross Unrealized Losses	0	(3,601)
Fair Value	268,067	264,492
Agency collateralized mortgage obligations
Securities available for sale
Amortized Cost	882,124	944,946
Gross Unrealized Gains	7,419	1,130
Gross Unrealized Losses	(581)	(15,192)
Fair Value	888,962	930,884
Securities held to maturity
Amortized Cost	70,726	71,637
Gross Unrealized Gains	2,975	533
Gross Unrealized Losses	(115)	(778)
Fair Value	73,586	71,392
Agency mortgage-backed securities
Securities available for sale
Amortized Cost	182,598	175,406
Gross Unrealized Gains	739	36
Gross Unrealized Losses	(1,079)	(5,121)
Fair Value	182,258	170,321
Securities held to maturity
Amortized Cost	6,758	7,219
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(57)	(297)
Fair Value	6,701	6,922
Agency commercial mortgage-backed securities
Securities available for sale
Amortized Cost	61,275	62,200
Gross Unrealized Gains	465	0
Gross Unrealized Losses	(1,089)	(3,275)
Fair Value	60,651	58,925
Securities held to maturity
Amortized Cost	10,385	10,417
Gross Unrealized Gains	46	0
Gross Unrealized Losses	0	(289)
Fair Value	10,431	10,128
Corporate bonds
Securities available for sale
Amortized Cost	119,917	112,404
Gross Unrealized Gains	880	342
Gross Unrealized Losses	(1,054)	(1,256)
Fair Value	119,743	111,490
Trust preferred securities
Securities available for sale
Amortized Cost	8,323	8,314
Gross Unrealized Gains	231	251
Gross Unrealized Losses	(4)	(99)
Fair Value	8,550	8,466
Other bonds and obligations
Securities available for sale
Amortized Cost	29,084	8,355
Gross Unrealized Gains	963	34
Gross Unrealized Losses	(6)	(35)
Fair Value	30,041	8,354
Securities held to maturity
Amortized Cost	299	248
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	299	248
Tax advantaged economic development bonds
Securities held to maturity
Amortized Cost	19,063	19,718
Gross Unrealized Gains	172	22
Gross Unrealized Losses	(1,263)	(1,698)
Fair Value	$ 17,972	$ 18,042

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	Jun. 30, 2019	Dec. 31, 2018
Available for sale, Amortized Cost
Within 1 year	$ 15,204
Over 1 year to 5 years	31,179
Over 5 years to 10 years	71,721
Over 10 years	153,621
Total bonds and obligations	271,725
Mortgage-backed securities	1,125,997
Amortized Cost	1,397,722	$ 1,421,273
Available for sale, Fair Value
Within 1 year	15,245
Over 1 year to 5 years	31,213
Over 5 years to 10 years	72,831
Over 10 years	158,918
Total bonds and obligations	278,207
Mortgage-backed securities	1,131,871
Fair Value	1,410,078	1,399,647
Held to maturity, Amortized Cost
Within 1 year	2,875
Over 1 year to 5 years	14,729
Over 5 years to 10 years	15,086
Over 10 years	243,904
Total bonds and obligations	276,594
Mortgage-backed securities	87,869
Amortized Cost	364,463	373,763
Held to maturity, Fair Value
Within 1 year	2,875
Over 1 year to 5 years	14,844
Over 5 years to 10 years	15,180
Over 10 years	253,439
Total bonds and obligations	286,338
Mortgage-backed securities	90,718
Fair Value	$ 377,056	$ 371,224

SECURITIES AVAILABLE FOR SALE_5

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES - Narrative (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)security	Jun. 30, 2019USD ($)security	Jun. 30, 2018USD ($)
Investment Holdings [Line Items]
Purchases of securities available for sale | $		$ 15,180	$ 165,312
Proceeds from sale of available-for-sale securities | $	$ 80,400	82,978	$ 0
Debt securities, available-for-sale, realized gain | $	5	11
Debt securities, available-for-sale, realized loss | $	$ 7	$ 7
Municipal bonds and obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	2	2
Available for sale securities portfolio, number of securities		246
Available for sale securities, continuous unrealized loss position, aggregate losses		0.40%
Agency collateralized mortgage obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	59	59
Available for sale securities portfolio, number of securities		253
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		0.80%
Mortgage-backed securities
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	45	45
Available for sale securities portfolio, number of securities		97
Available for sale securities, continuous unrealized loss position, aggregate losses		1.40%
Held-to-maturity, securities in unrealized loss positions	1	1
Held-to-maturity securities portfolio, number of securities	2	2
Held to maturity securities, continuous unrealized loss position, aggregate losses		0.80%
Corporate bonds
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	11	11
Available for sale securities portfolio, number of securities		23
Available for sale securities, continuous unrealized loss position, aggregate losses		1.50%
Trust preferred securities
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	1	1
Available for sale securities portfolio, number of securities		2
Available for sale securities, continuous unrealized loss position, aggregate losses		0.10%
Other bonds and obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	6	6
Available for sale securities portfolio, number of securities		10
Available for sale securities, continuous unrealized loss position, aggregate losses		0.20%
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		15.80%

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	Jun. 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	$ 515	$ 1,576
Available for sale securities, over twelve months, gross unrealized losses	3,303	24,115
Available for sale securities, continuous unrealized loss position, accumulated loss	3,818	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	90,256	130,805
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	287,645	992,767
Available for sale securities, continuous unrealized loss position, fair value	377,901	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	0	192
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	1,435	6,471
Held to maturity securities, accumulated unrecognized holding loss	1,435	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	0	25,674
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	24,078	170,459
Held to maturity securities, accumulated unrecognized holding loss, fair value	24,078	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	515	1,768
Held to maturity and available for sale securities continuous unrealized loss position, less than twelve months, fair value	90,256	156,479
Held to maturity and available for sale securities continuous unrealized loss position, over twelve months, aggregate losses	4,738	30,586
Held to maturity and available for sale securities continuous unrealized loss position, over twelve months, fair value	311,723	1,163,226
Held to maturity and available for sale securities continuous unrealized loss position, aggregate losses	5,253	32,354
Held to maturity and available for sale securities continuous unrealized loss position, fair value	401,979	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	5	658
Available for sale securities, continuous unrealized loss position, accumulated loss	5	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	1,319	11,787
Available for sale securities, continuous unrealized loss position, fair value	1,319	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		127
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses		3,474
Held to maturity securities, accumulated unrecognized holding loss		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		17,596
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value		103,759
Held to maturity securities, accumulated unrecognized holding loss, fair value		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	72	76
Available for sale securities, over twelve months, gross unrealized losses	509	15,116
Available for sale securities, continuous unrealized loss position, accumulated loss	581	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	43,755	39,114
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	103,929	755,528
Available for sale securities, continuous unrealized loss position, fair value	147,684	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	0	0
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	115	778
Held to maturity securities, accumulated unrecognized holding loss	115	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	0	0
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	10,648	43,138
Held to maturity securities, accumulated unrecognized holding loss, fair value	10,648	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	5	53
Available for sale securities, over twelve months, gross unrealized losses	1,074	5,068
Available for sale securities, continuous unrealized loss position, accumulated loss	1,079	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	2,191	5,500
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	93,990	162,439
Available for sale securities, continuous unrealized loss position, fair value	96,181	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	57	297
Held to maturity securities, accumulated unrecognized holding loss	57	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	6,701	6,922
Held to maturity securities, accumulated unrecognized holding loss, fair value	6,701	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	0	44
Available for sale securities, over twelve months, gross unrealized losses	1,089	3,231
Available for sale securities, continuous unrealized loss position, accumulated loss	1,089	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	0	1,503
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	55,319	57,422
Available for sale securities, continuous unrealized loss position, fair value	55,319	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	434	1,249
Available for sale securities, over twelve months, gross unrealized losses	620	7
Available for sale securities, continuous unrealized loss position, accumulated loss	1,054	1,256
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	37,147	74,434
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	30,036	2,561
Available for sale securities, continuous unrealized loss position, fair value	67,183	76,995
Trust preferred securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, less than twelve months, gross unrealized losses	4	99
Available for sale securities, over twelve months, gross unrealized losses	0	0
Available for sale securities, continuous unrealized loss position, accumulated loss	4	99
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	7,163	7,068
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	0	0
Available for sale securities, continuous unrealized loss position, fair value	7,163	7,068
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	0	0
Available for sale securities, over twelve months, gross unrealized losses	6	35
Available for sale securities, continuous unrealized loss position, accumulated loss	6	35
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	0	0
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	3,052	3,030
Available for sale securities, continuous unrealized loss position, fair value	3,052	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	1,263	1,633
Held to maturity securities, accumulated unrecognized holding loss	1,263	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	6,729	6,512
Held to maturity securities, accumulated unrecognized holding loss, fair value	$ 6,729	$ 14,590

LOANS - Narrative (Details)

LOANS - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reclass of aircraft loan portfolio to held-for-sale	$ 176,144	$ 0
Total loans	$ 9,941,828		$ 9,043,253
Borrower's sustained repayment performance period	6 months
Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,882,380		2,566,424
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,647,423		1,676,509
Acquired credit impaired loans	74,092		47,288
Certain loans acquired in transfer not accounted for as debt securities, note balance, net	169,900		124,000
Financing receivable not considered impaired at time of acquisition	2,600,000		1,600,000
Acquired Loans | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	604,765		239,126
Acquired credit impaired loans	12,050		4,888
Real Estate | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Process of foreclosure	154
Mortgages | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Process of foreclosure	$ 5,400		$ 3,200

LOANS - Summary of Total Loans

LOANS - Summary of Total Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 9,941,828	$ 9,043,253
Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	7,294,405	7,366,744
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,647,423	1,676,509
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	5,992,644	5,380,267
Commercial loans | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	4,131,264	4,102,249
Commercial loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,861,380	1,278,018
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	4,005,347	3,400,221
Commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,659,498	2,588,711
Commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,345,849	811,510
Commercial real estate | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	359,493	353,012
Commercial real estate | Construction | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	300,996	327,792
Commercial real estate | Construction | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	58,497	25,220
Commercial real estate | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	3,645,854	3,047,209
Commercial real estate | Other commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,358,502	2,260,919
Commercial real estate | Other commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,287,352	786,290
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,987,297	1,980,046
Commercial and industrial loans | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,471,766	1,513,538
Commercial and industrial loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	515,531	466,508
Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,882,380	2,566,424
Residential mortgages | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,277,615	2,327,298
Residential mortgages | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	604,765	239,126
Residential mortgages | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	17,328	9,756
Residential mortgages | Construction | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	9,170	9,582
Residential mortgages | Construction | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	8,158	174
Residential mortgages | 1-4 family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,865,052	2,556,668
Residential mortgages | 1-4 family | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,268,445	2,317,716
Residential mortgages | 1-4 family | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	596,607	238,952
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,066,804	1,096,562
Consumer | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	885,526	937,197
Consumer | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	181,278	159,365
Consumer | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	403,830	376,680
Consumer | Home equity | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	281,254	289,961
Consumer | Home equity | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	122,576	86,719
Consumer | Auto and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	662,974	719,882
Consumer | Auto and other | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	604,272	647,236
Consumer | Auto and other | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 58,702	$ 72,646

LOANS - Accretable Yield Activi

LOANS - Accretable Yield Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 2,139	$ 10,392	$ 2,840	$ 11,561
Acquisitions	4,200	0	4,200	0
Interest component of expected cash flows (accretable discount)	(2,278)	(6,881)	(3,598)	(10,313)
Net reclassifications from (to) nonaccretable difference	1,464	4,517	2,129	7,049
Payments received, net	(105)	(1,724)	(160)	(1,912)
Reclassification to TDR			9	0
Disposals			0	(81)
Balance at end of period	$ 5,420	$ 6,304	$ 5,420	$ 6,304

LOANS - Summary of Past Due Loa

LOANS - Summary of Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Total loans	$ 9,941,828	$ 9,043,253
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total loans	4,005,347	3,400,221
Commercial real estate | Construction
Financing Receivable, Past Due [Line Items]
Total loans	359,493	353,012
Commercial real estate | Other
Financing Receivable, Past Due [Line Items]
Total loans	3,645,854	3,047,209
Commercial and industrial loans
Financing Receivable, Past Due [Line Items]
Total loans	1,987,297	1,980,046
Residential mortgages
Financing Receivable, Past Due [Line Items]
Total loans	2,882,380	2,566,424
Residential mortgages | Construction
Financing Receivable, Past Due [Line Items]
Total loans	17,328	9,756
Residential mortgages | 1-4 family
Financing Receivable, Past Due [Line Items]
Total loans	2,865,052	2,556,668
Consumer
Financing Receivable, Past Due [Line Items]
Total loans	1,066,804	1,096,562
Consumer | Home equity
Financing Receivable, Past Due [Line Items]
Total loans	403,830	376,680
Consumer | Auto and other
Financing Receivable, Past Due [Line Items]
Total loans	662,974	719,882
Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total Past Due	43,614	42,440
Current	7,250,791	7,324,304
Total loans	7,294,405	7,366,744
Past Due 90 days and Accruing	2,845	1,063
Business Activities Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	7,015	11,399
Business Activities Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,050	3,500
Business Activities Loans | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	33,549	27,541
Business Activities Loans | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	18,241	20,022
Current	2,641,257	2,568,689
Total loans	2,659,498	2,588,711
Past Due 90 days and Accruing	0	993
Business Activities Loans | Commercial real estate | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	300,996	327,792
Total loans	300,996	327,792
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial real estate | Other
Financing Receivable, Past Due [Line Items]
Total Past Due	18,241	20,022
Current	2,340,261	2,240,897
Total loans	2,358,502	2,260,919
Past Due 90 days and Accruing	0	993
Business Activities Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	388	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
Financing Receivable, Past Due [Line Items]
Total Past Due	388	913
Business Activities Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	478	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
Financing Receivable, Past Due [Line Items]
Total Past Due	478	276
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	17,375	18,833
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due | Other
Financing Receivable, Past Due [Line Items]
Total Past Due	17,375	18,833
Business Activities Loans | Commercial and industrial loans
Financing Receivable, Past Due [Line Items]
Total Past Due	12,744	10,305
Current	1,459,022	1,503,233
Total loans	1,471,766	1,513,538
Past Due 90 days and Accruing	1,422	4
Business Activities Loans | Commercial and industrial loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,071	4,694
Business Activities Loans | Commercial and industrial loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	784	975
Business Activities Loans | Commercial and industrial loans | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	9,889	4,636
Business Activities Loans | Residential mortgages
Financing Receivable, Past Due [Line Items]
Total Past Due	4,914	4,690
Current	2,272,701	2,322,608
Total loans	2,277,615	2,327,298
Past Due 90 days and Accruing	1,258	66
Business Activities Loans | Residential mortgages | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	9,170	9,582
Total loans	9,170	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	4,914	4,690
Current	2,263,531	2,313,026
Total loans	2,268,445	2,317,716
Past Due 90 days and Accruing	1,258	66
Business Activities Loans | Residential mortgages | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	867	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	867	1,631
Business Activities Loans | Residential mortgages | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	543	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	543	1,619
Business Activities Loans | Residential mortgages | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,504	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	3,504	1,440
Business Activities Loans | Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	7,715	7,423
Current	877,811	929,774
Total loans	885,526	937,197
Past Due 90 days and Accruing	165	0
Business Activities Loans | Consumer | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	1,752	1,566
Current	279,502	288,395
Total loans	281,254	289,961
Past Due 90 days and Accruing	165	0
Business Activities Loans | Consumer | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	5,963	5,857
Current	598,309	641,379
Total loans	604,272	647,236
Past Due 90 days and Accruing	0	0
Business Activities Loans | Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,689	4,161
Business Activities Loans | Consumer | 30-59 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	191	618
Business Activities Loans | Consumer | 30-59 Days Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	3,498	3,543
Business Activities Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,245	630
Business Activities Loans | Consumer | 60-89 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	582	15
Business Activities Loans | Consumer | 60-89 Days Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	663	615
Business Activities Loans | Consumer | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,781	2,632
Business Activities Loans | Consumer | 90 Days or Greater Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	979	933
Business Activities Loans | Consumer | 90 Days or Greater Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	1,802	1,699
Acquired Loans
Financing Receivable, Past Due [Line Items]
Total Past Due	12,735	14,227
Acquired Credit Impaired	74,092	47,288
Total loans	2,647,423	1,676,509
Past Due 90 days and Accruing	2,812	1,967
Acquired Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,570	4,685
Acquired Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,286	1,628
Acquired Loans | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	7,879	7,914
Acquired Loans | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	6,125	7,913
Acquired Credit Impaired	29,623	11,994
Total loans	1,345,849	811,510
Past Due 90 days and Accruing	2,441	1,652
Acquired Loans | Commercial real estate | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Credit Impaired	1,411	0
Total loans	58,497	25,220
Past Due 90 days and Accruing	0	0
Acquired Loans | Commercial real estate | Other
Financing Receivable, Past Due [Line Items]
Total Past Due	6,125	7,913
Acquired Credit Impaired	28,212	11,994
Total loans	1,287,352	786,290
Past Due 90 days and Accruing	2,441	1,652
Acquired Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	998	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
Financing Receivable, Past Due [Line Items]
Total Past Due	998	2,603
Acquired Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	695	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
Financing Receivable, Past Due [Line Items]
Total Past Due	695	1,127
Acquired Loans | Commercial real estate | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4,432	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
Financing Receivable, Past Due [Line Items]
Total Past Due	4,432	4,183
Acquired Loans | Commercial and industrial loans
Financing Receivable, Past Due [Line Items]
Total Past Due	2,120	1,879
Acquired Credit Impaired	31,456	29,539
Total loans	515,531	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	1,055	217
Acquired Loans | Commercial and industrial loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	62	147
Acquired Loans | Commercial and industrial loans | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,003	1,515
Acquired Loans | Residential mortgages
Financing Receivable, Past Due [Line Items]
Total Past Due	2,866	2,444
Acquired Credit Impaired	12,050	4,888
Total loans	604,765	239,126
Past Due 90 days and Accruing	75	75
Acquired Loans | Residential mortgages | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Credit Impaired	0	0
Total loans	8,158	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	2,866	2,444
Acquired Credit Impaired	12,050	4,888
Total loans	596,607	238,952
Past Due 90 days and Accruing	75	75
Acquired Loans | Residential mortgages | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	970	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	970	1,382
Acquired Loans | Residential mortgages | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	488	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	488	144
Acquired Loans | Residential mortgages | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,408	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	1,408	918
Acquired Loans | Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	1,624	1,991
Acquired Credit Impaired	963	867
Total loans	181,278	159,365
Past Due 90 days and Accruing	82	96
Acquired Loans | Consumer | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	1,106	1,189
Acquired Credit Impaired	700	553
Total loans	122,576	86,719
Past Due 90 days and Accruing	82	0
Acquired Loans | Consumer | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	518	802
Acquired Credit Impaired	263	314
Total loans	58,702	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	547	483
Acquired Loans | Consumer | 30-59 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	379	290
Acquired Loans | Consumer | 30-59 Days Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	168	193
Acquired Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	41	210
Acquired Loans | Consumer | 60-89 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	0	148
Acquired Loans | Consumer | 60-89 Days Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	41	62
Acquired Loans | Consumer | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,036	1,298
Acquired Loans | Consumer | 90 Days or Greater Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Total Past Due	727	751
Acquired Loans | Consumer | 90 Days or Greater Past Due | Auto and other
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 309	$ 547

LOANS - Summary Information Per

LOANS - Summary Information Pertaining to Non-accrual Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Non-accrual loans
Non-accrual loans	$ 35,771	$ 32,425
Business Activities Loans
Non-accrual loans
Non-accrual loans	30,704	26,478
Acquired Loans
Non-accrual loans
Non-accrual loans	5,067	5,947
Commercial real estate
Non-accrual loans
Non-accrual loans	19,366	20,371
Commercial real estate | Business Activities Loans
Non-accrual loans
Non-accrual loans	17,375	17,840
Commercial real estate | Acquired Loans
Non-accrual loans
Non-accrual loans	1,991	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
Non-accrual loans
Non-accrual loans	19,366	20,371
Commercial real estate | Other | Business Activities Loans
Non-accrual loans
Non-accrual loans	17,375	17,840
Commercial real estate | Other | Acquired Loans
Non-accrual loans
Non-accrual loans	1,991	2,531
Commercial and industrial loans
Non-accrual loans
Non-accrual loans	9,256	6,003
Commercial and industrial loans | Business Activities Loans
Non-accrual loans
Non-accrual loans	8,467	4,632
Commercial and industrial loans | Acquired Loans
Non-accrual loans
Non-accrual loans	789	1,371
Residential mortgages
Non-accrual loans
Non-accrual loans	3,579	2,217
Residential mortgages | Business Activities Loans
Non-accrual loans
Non-accrual loans	2,246	1,374
Residential mortgages | Acquired Loans
Non-accrual loans
Non-accrual loans	1,333	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	3,579	2,217
Residential mortgages | 1-4 family | Business Activities Loans
Non-accrual loans
Non-accrual loans	2,246	1,374
Residential mortgages | 1-4 family | Acquired Loans
Non-accrual loans
Non-accrual loans	1,333	843
Consumer
Non-accrual loans
Non-accrual loans	3,570	3,834
Consumer | Business Activities Loans
Non-accrual loans
Non-accrual loans	2,616	2,632
Consumer | Acquired Loans
Non-accrual loans
Non-accrual loans	954	1,202
Consumer | Home equity
Non-accrual loans
Non-accrual loans	1,459	1,684
Consumer | Home equity | Business Activities Loans
Non-accrual loans
Non-accrual loans	814	933
Consumer | Home equity | Acquired Loans
Non-accrual loans
Non-accrual loans	645	751
Consumer | Auto and other
Non-accrual loans
Non-accrual loans	2,111	2,150
Consumer | Auto and other | Business Activities Loans
Non-accrual loans
Non-accrual loans	1,802	1,699
Consumer | Auto and other | Acquired Loans
Non-accrual loans
Non-accrual loans	$ 309	$ 451

LOANS - Loans Evaluated for Imp

LOANS - Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Loans receivable: balance at end of period
Total loans	$ 9,941,828	$ 9,043,253
Commercial real estate
Loans receivable: balance at end of period
Total loans	4,005,347	3,400,221
Commercial and industrial loans
Loans receivable: balance at end of period
Total loans	1,987,297	1,980,046
Residential mortgages
Loans receivable: balance at end of period
Total loans	2,882,380	2,566,424
Consumer
Loans receivable: balance at end of period
Total loans	1,066,804	1,096,562
Business Activities Loans
Loans receivable: balance at end of period
Individually evaluated for impairment	31,767	28,601
Collectively evaluated for impairment	7,262,638	7,338,143
Total loans	7,294,405	7,366,744
Business Activities Loans | Commercial real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	22,035	23,345
Collectively evaluated for impairment	2,637,463	2,565,366
Total loans	2,659,498	2,588,711
Business Activities Loans | Commercial and industrial loans
Loans receivable: balance at end of period
Individually evaluated for impairment	6,753	2,825
Collectively evaluated for impairment	1,465,013	1,510,713
Total loans	1,471,766	1,513,538
Business Activities Loans | Residential mortgages
Loans receivable: balance at end of period
Individually evaluated for impairment	2,841	2,089
Collectively evaluated for impairment	2,274,774	2,325,209
Total loans	2,277,615	2,327,298
Business Activities Loans | Consumer
Loans receivable: balance at end of period
Individually evaluated for impairment	138	342
Collectively evaluated for impairment	885,388	936,855
Total loans	885,526	937,197
Acquired Loans
Loans receivable: balance at end of period
Individually evaluated for impairment	5,170	5,751
Purchased credit-impaired loans	74,092	47,288
Collectively evaluated for impairment	2,568,161	1,623,470
Total loans	2,647,423	1,676,509
Acquired Loans | Commercial real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	3,709	3,980
Purchased credit-impaired loans	29,623	11,994
Collectively evaluated for impairment	1,312,517	795,536
Total loans	1,345,849	811,510
Acquired Loans | Commercial and industrial loans
Loans receivable: balance at end of period
Individually evaluated for impairment	372	763
Purchased credit-impaired loans	31,456	29,539
Collectively evaluated for impairment	483,703	436,206
Total loans	515,531	466,508
Acquired Loans | Residential mortgages
Loans receivable: balance at end of period
Individually evaluated for impairment	740	362
Purchased credit-impaired loans	12,050	4,888
Collectively evaluated for impairment	591,975	233,876
Total loans	604,765	239,126
Acquired Loans | Consumer
Loans receivable: balance at end of period
Individually evaluated for impairment	349	646
Purchased credit-impaired loans	963	867
Collectively evaluated for impairment	179,966	157,852
Total loans	$ 181,278	$ 159,365

LOANS - Summary of Impaired Loa

LOANS - Summary of Impaired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Business Activities Loans
Recorded Investment
Total	$ 31,708	$ 28,556
Unpaid Principal Balance
Total	49,207	38,090
Related Allowance
With an allowance recorded	134	197
Business Activities Loans | Commercial real estate
Recorded Investment
Total	22,051	23,272
Unpaid Principal Balance
Total	33,553	31,708
Related Allowance
With an allowance recorded	7	9
Business Activities Loans | Commercial real estate | Other
Recorded Investment
With no related allowance	21,538	22,606
With an allowance recorded	513	666
Unpaid Principal Balance
With no related allowance	33,028	31,038
With an allowance recorded	525	670
Related Allowance
With an allowance recorded	7	9
Business Activities Loans | Commercial and industrial loans
Recorded Investment
With no related allowance	5,319	1,584
With an allowance recorded	1,343	1,251
Total	6,662	2,835
Unpaid Principal Balance
With no related allowance	10,807	2,566
With an allowance recorded	1,349	1,235
Total	12,156	3,801
Related Allowance
With an allowance recorded	42	49
Business Activities Loans | Residential mortgages
Recorded Investment
Total	2,857	2,106
Unpaid Principal Balance
Total	3,146	2,220
Related Allowance
With an allowance recorded	78	128
Business Activities Loans | Residential mortgages | 1-4 Family
Recorded Investment
With no related allowance	1,244	443
With an allowance recorded	1,613	1,663
Unpaid Principal Balance
With no related allowance	1,407	441
With an allowance recorded	1,739	1,779
Related Allowance
With an allowance recorded	78	128
Business Activities Loans | Consumer
Recorded Investment
Total	138	343
Unpaid Principal Balance
Total	352	361
Related Allowance
With an allowance recorded	7	11
Business Activities Loans | Consumer | Other
Recorded Investment
With no related allowance	0	0
With an allowance recorded	11	13
Unpaid Principal Balance
With no related allowance	0	0
With an allowance recorded	11	13
Related Allowance
With an allowance recorded	0	1
Business Activities Loans | Consumer | Home equity
Recorded Investment
With no related allowance	35	230
With an allowance recorded	92	100
Unpaid Principal Balance
With no related allowance	240	242
With an allowance recorded	101	106
Related Allowance
With an allowance recorded	7	10
Acquired Loans
Recorded Investment
Total	5,198	5,758
Unpaid Principal Balance
Total	9,559	9,523
Related Allowance
With an allowance recorded	99	97
Acquired Loans | Commercial real estate
Recorded Investment
Total	3,730	3,980
Unpaid Principal Balance
Total	6,615	6,906
Related Allowance
With an allowance recorded	84	9
Acquired Loans | Commercial real estate | Other
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	343	538
With an allowance recorded	29	228
Total	372	766
Unpaid Principal Balance
With no related allowance	594	644
With an allowance recorded	30	232
Total	624	876
Related Allowance
With an allowance recorded	0	4
Acquired Loans | Commercial and industrial loans | Other
Recorded Investment
With no related allowance	2,664
With an allowance recorded	1,066
Unpaid Principal Balance
With no related allowance	5,544
With an allowance recorded	1,071
Related Allowance
With an allowance recorded	84
Acquired Loans | Residential mortgages
Recorded Investment
Total	746	365
Unpaid Principal Balance
Total	769	441
Related Allowance
With an allowance recorded	8	36
Acquired Loans | Residential mortgages | 1-4 Family
Recorded Investment
With no related allowance	658	271
With an allowance recorded	88	94
Unpaid Principal Balance
With no related allowance	656	324
With an allowance recorded	113	117
Related Allowance
With an allowance recorded	8	36
Acquired Loans | Consumer
Recorded Investment
Total	350	647
Unpaid Principal Balance
Total	1,551	1,300
Related Allowance
With an allowance recorded	7	48
Acquired Loans | Consumer | Other
Recorded Investment
With no related allowance	16	0
With an allowance recorded	41	43
Unpaid Principal Balance
With no related allowance	14	11
With an allowance recorded	39	40
Related Allowance
With an allowance recorded	7	7
Acquired Loans | Consumer | Home equity
Recorded Investment
With no related allowance	243	399
With an allowance recorded	50	205
Unpaid Principal Balance
With no related allowance	1,448	1,053
With an allowance recorded	50	196
Related Allowance
With an allowance recorded	$ 0	$ 41

LOANS - Average Recorded Invest

LOANS - Average Recorded Investment and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	$ 27,199	$ 40,790
Cash Basis Interest Income Recognized	657	720
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	5,230	8,641
Cash Basis Interest Income Recognized	171	258
Commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	21,446	30,878
Cash Basis Interest Income Recognized	225	373
Commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	3,572	5,326
Cash Basis Interest Income Recognized	115	200
Commercial real estate | Other | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	20,877	29,092
Cash basis interest income recognized, with no related allowance	213	326
Average recorded investment with related allowance	569	1,786
Cash basis interest income recognized, with related allowance	12	47
Commercial real estate | Other | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	2,607	2,306
Cash basis interest income recognized, with no related allowance	82	111
Average recorded investment with related allowance	965	3,020
Cash basis interest income recognized, with related allowance	33	89
Commercial and industrial loans | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	1,775	4,467
Cash basis interest income recognized, with no related allowance	304	201
Average recorded investment with related allowance	1,468	1,279
Cash basis interest income recognized, with related allowance	64	83
Average Recorded Investment	3,243	5,746
Cash Basis Interest Income Recognized	368	284
Commercial and industrial loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	522	349
Cash basis interest income recognized, with no related allowance	32	27
Average recorded investment with related allowance	30	287
Cash basis interest income recognized, with related allowance	1	17
Average Recorded Investment	552	636
Cash Basis Interest Income Recognized	33	44
Residential mortgages | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	2,207	2,351
Cash Basis Interest Income Recognized	60	58
Residential mortgages | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	452	1,582
Cash Basis Interest Income Recognized	16	8
Residential mortgages | 1-4 Family | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	574	942
Cash basis interest income recognized, with no related allowance	23	26
Average recorded investment with related allowance	1,633	1,409
Cash basis interest income recognized, with related allowance	37	32
Residential mortgages | 1-4 Family | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	362	1,505
Cash basis interest income recognized, with no related allowance	12	6
Average recorded investment with related allowance	90	77
Cash basis interest income recognized, with related allowance	4	2
Consumer | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	303	1,815
Cash Basis Interest Income Recognized	4	5
Consumer | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	654	1,097
Cash Basis Interest Income Recognized	7	6
Consumer | Other | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
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	12	16
Cash basis interest income recognized, with related allowance	0	0
Consumer | Other | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	5	17
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
Consumer | Home equity | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	196	1,754
Cash basis interest income recognized, with no related allowance	1	4
Average recorded investment with related allowance	95	45
Cash basis interest income recognized, with related allowance	3	1
Consumer | Home equity | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	557	760
Cash basis interest income recognized, with no related allowance	5	0
Average recorded investment with related allowance	50	320
Cash basis interest income recognized, with related allowance	$ 1	$ 5

LOANS - Recorded Investment and

LOANS - Recorded Investment and Number of Modifications (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)modification	Jun. 30, 2018USD ($)modification	Jun. 30, 2019USD ($)modification	Jun. 30, 2018USD ($)modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | modification	2	0	5	5
Pre-Modification Outstanding Recorded Investment	$ 282	$ 0	$ 620	$ 2,113
Post-Modification Outstanding Recorded Investment	$ 279	$ 0	$ 617	$ 2,042
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | modification	0		2
Pre-Modification Outstanding Recorded Investment	$ 0		$ 145
Post-Modification Outstanding Recorded Investment	$ 0		$ 145
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | modification	2	0	3	4
Pre-Modification Outstanding Recorded Investment	$ 282	$ 0	$ 475	$ 1,995
Post-Modification Outstanding Recorded Investment	$ 279	$ 0	$ 472	$ 1,924
Residential mortgages | 1-4 family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | modification		0		1
Pre-Modification Outstanding Recorded Investment		$ 0		$ 118
Post-Modification Outstanding Recorded Investment		$ 0		$ 118

LOANS - Modifications that Subs

LOANS - Modifications that Subsequently Defaulted (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019contract	Jun. 30, 2018USD ($)contract	Jun. 30, 2019contract	Jun. 30, 2018USD ($)contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modifications that subsequently defaulted, number of contracts (contract)	0	2	0	2
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modifications that subsequently defaulted, number of contracts (contract)		1,000		1,000
Modifications that subsequently defaulted, recorded investment | $		$ 5,992		$ 5,992
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modifications that subsequently defaulted, number of contracts (contract)		1,000		1,000
Modifications that subsequently defaulted, recorded investment | $		$ 1,065		$ 1,065

LOANS - Troubled Debt Restructu

LOANS - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Trouble Debt Restructuring on Financing Receivables [Roll Forward]
Balance at beginning of the period	$ 25,185	$ 43,105	$ 27,415	$ 41,990
Principal payments	(375)	(2,511)	(1,788)	(3,150)
TDR status change	0	0	0	0
Other reductions	0	(7,088)	(1,155)	(7,376)
Newly identified TDRs	279	0	617	2,042
Balance at end of the period	$ 25,089	$ 33,506	$ 25,089	$ 33,506

LOAN LOSS ALLOWANCE - Allowance

LOAN LOSS ALLOWANCE - Allowance Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Dec. 31, 2018
Activity in the allowance for loan losses
Balance at beginning of period			$ 61,469
Provision/(releases) for loan losses	$ 3,467	$ 6,532	7,468	$ 12,107
Balance at end of period	62,156		62,156
Total	62,156		62,156		$ 62,156	$ 61,469
Business Activities Loans
Activity in the allowance for loan losses
Balance at beginning of period	56,212	47,277	56,139	45,920
Charged-off loans	2,945	3,962	6,838	5,898
Recoveries on charged-off loans	308	614	892	755
Provision/(releases) for loan losses	1,857	6,385	5,239	9,537
Balance at end of period	55,432	50,314	55,432	50,314
Individually evaluated for impairment					134	197
Collectively evaluated for impairment					55,298	55,942
Total	56,212	47,277	55,432	50,314	55,432	56,139
Business Activities Loans | Commercial real estate
Activity in the allowance for loan losses
Balance at beginning of period	22,521	17,841	21,732	16,843
Charged-off loans	702	1,392	1,958	1,498
Recoveries on charged-off loans	67	26	275	49
Provision/(releases) for loan losses	522	2,676	2,359	3,757
Balance at end of period	22,408	19,151	22,408	19,151
Individually evaluated for impairment					7	9
Collectively evaluated for impairment					22,401	21,723
Total	22,521	17,841	22,408	19,151	22,408	21,732
Business Activities Loans | Commercial and industrial loans
Activity in the allowance for loan losses
Balance at beginning of period	18,247	13,229	16,504	13,850
Charged-off loans	1,180	1,706	2,856	2,596
Recoveries on charged-off loans	119	447	426	491
Provision/(releases) for loan losses	1,663	2,685	4,775	2,910
Balance at end of period	18,849	14,655	18,849	14,655
Individually evaluated for impairment					42	49
Collectively evaluated for impairment					18,807	16,455
Total	18,247	13,229	18,849	14,655	18,849	16,504
Business Activities Loans | Residential mortgages
Activity in the allowance for loan losses
Balance at beginning of period	9,209	8,598	10,535	9,420
Charged-off loans	206	27	248	27
Recoveries on charged-off loans	43	6	58	6
Provision/(releases) for loan losses	(212)	853	(1,511)	31
Balance at end of period	8,834	9,430	8,834	9,430
Individually evaluated for impairment					78	128
Collectively evaluated for impairment					8,756	10,407
Total	9,209	8,598	10,535	9,430	8,834	10,535
Business Activities Loans | Consumer
Activity in the allowance for loan losses
Balance at beginning of period	6,235	7,609	7,368	5,807
Charged-off loans	857	837	1,776	1,777
Recoveries on charged-off loans	79	135	133	209
Provision/(releases) for loan losses	(116)	171	(384)	2,839
Balance at end of period	5,341	7,078	5,341	7,078
Individually evaluated for impairment					7	11
Collectively evaluated for impairment					5,334	7,357
Total	6,235	7,609	5,341	7,078	5,341	7,368
Acquired Loans
Activity in the allowance for loan losses
Balance at beginning of period	5,826	6,582	5,330	5,914
Charged-off loans	1,021	1,758	1,707	3,613
Recoveries on charged-off loans	309	640	872	740
Provision/(releases) for loan losses	1,610	147	2,229	2,570
Balance at end of period	6,724	5,611	6,724	5,611
Individually evaluated for impairment					99	97
Collectively evaluated for impairment					6,625	5,233
Total	5,826	6,582	5,330	5,611	6,724	5,330
Acquired Loans | Commercial real estate
Activity in the allowance for loan losses
Balance at beginning of period	3,910	3,995	3,153	3,856
Charged-off loans	624	972	804	1,712
Recoveries on charged-off loans	24	259	500	265
Provision/(releases) for loan losses	1,252	100	1,713	973
Balance at end of period	4,562	3,382	4,562	3,382
Individually evaluated for impairment					84	9
Collectively evaluated for impairment					4,478	3,144
Total	3,910	3,995	4,562	3,856	4,562	3,153
Acquired Loans | Commercial and industrial loans
Activity in the allowance for loan losses
Balance at beginning of period	879	1,243	1,064	1,125
Charged-off loans	109	0	371	155
Recoveries on charged-off loans	175	66	226	95
Provision/(releases) for loan losses	(75)	(182)	(49)	62
Balance at end of period	870	1,127	870	1,127
Individually evaluated for impairment					0	4
Collectively evaluated for impairment					870	1,060
Total	879	1,243	1,064	1,127	870	1,064
Acquired Loans | Residential mortgages
Activity in the allowance for loan losses
Balance at beginning of period	622	1,046	630	598
Charged-off loans	31	622	104	1,053
Recoveries on charged-off loans	55	11	60	36
Provision/(releases) for loan losses	236	183	296	1,037
Balance at end of period	882	618	882	618
Individually evaluated for impairment					8	36
Collectively evaluated for impairment					874	594
Total	622	1,046	630	598	882	630
Acquired Loans | Consumer
Activity in the allowance for loan losses
Balance at beginning of period	415	298	483	335
Charged-off loans	257	164	428	693
Recoveries on charged-off loans	55	304	86	344
Provision/(releases) for loan losses	197	46	269	498
Balance at end of period	410	484	410	484
Individually evaluated for impairment					7	48
Collectively evaluated for impairment					403	435
Total	$ 415	$ 298	$ 483	$ 335	$ 410	$ 483

LOAN LOSS ALLOWANCE - Narrative

LOAN LOSS ALLOWANCE - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)grade
Credit quality information
Allowance for losses on acquired loans under Subtopic ASC 310-30 | $	$ 6.7
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	Jun. 30, 2019	Dec. 31, 2018
Credit quality information
Total loans	$ 9,941,828	$ 9,043,253
Special mention
Credit quality information
Total loans	108,671	47,166
Substandard
Credit quality information
Total loans	122,812	109,490
Non-Accrual
Credit quality information
Total loans	35,771	32,425
Classified
Credit quality information
Total loans	158,583	141,915
Criticized
Credit quality information
Total loans	267,254	189,081
Commercial real estate
Credit quality information
Total loans	4,005,347	3,400,221
Commercial real estate | Construction
Credit quality information
Total loans	359,493	353,012
Commercial and industrial loans
Credit quality information
Total loans	1,987,297	1,980,046
Residential mortgages
Credit quality information
Total loans	2,882,380	2,566,424
Residential mortgages | Construction
Credit quality information
Total loans	17,328	9,756
Residential mortgages | 1-4 family
Credit quality information
Total loans	2,865,052	2,556,668
Consumer
Credit quality information
Total loans	1,066,804	1,096,562
Consumer | Home equity
Credit quality information
Total loans	403,830	376,680
Consumer | Auto and other
Credit quality information
Total loans	662,974	719,882
Business Activities Loans
Credit quality information
Total loans	7,294,405	7,366,744
Business Activities Loans | Special mention
Credit quality information
Total loans	79,484	26,333
Business Activities Loans | Substandard
Credit quality information
Total loans	59,206	60,698
Business Activities Loans | Non-Accrual
Credit quality information
Total loans	30,704	26,478
Business Activities Loans | Classified
Credit quality information
Total loans	89,910	87,176
Business Activities Loans | Criticized
Credit quality information
Total loans	169,394	113,509
Business Activities Loans | Commercial real estate
Credit quality information
Total loans	2,659,498	2,588,711
Business Activities Loans | Commercial real estate | Pass
Credit quality information
Total loans	2,584,240	2,525,921
Business Activities Loans | Commercial real estate | Special mention
Credit quality information
Total loans	24,154	9,805
Business Activities Loans | Commercial real estate | Substandard
Credit quality information
Total loans	51,104	52,985
Business Activities Loans | Commercial real estate | Construction
Credit quality information
Total loans	300,996	327,792
Business Activities Loans | Commercial real estate | Construction | Pass
Credit quality information
Total loans	300,996	327,792
Business Activities Loans | Commercial real estate | Construction | Special mention
Credit quality information
Total loans	0	0
Business Activities Loans | Commercial real estate | Construction | Substandard
Credit quality information
Total loans	0	0
Business Activities Loans | Commercial real estate | Real Estate
Credit quality information
Total loans	2,358,502	2,260,919
Business Activities Loans | Commercial real estate | Real Estate | Pass
Credit quality information
Total loans	2,283,244	2,198,129
Business Activities Loans | Commercial real estate | Real Estate | Special mention
Credit quality information
Total loans	24,154	9,805
Business Activities Loans | Commercial real estate | Real Estate | Substandard
Credit quality information
Total loans	51,104	52,985
Business Activities Loans | Commercial and industrial loans
Credit quality information
Total loans	1,471,766	1,513,538
Business Activities Loans | Commercial and industrial loans | Pass
Credit quality information
Total loans	1,385,702	1,469,139
Business Activities Loans | Commercial and industrial loans | Special mention
Credit quality information
Total loans	53,543	14,279
Business Activities Loans | Commercial and industrial loans | Substandard
Credit quality information
Total loans	31,617	29,176
Business Activities Loans | Commercial and industrial loans | Doubtful
Credit quality information
Total loans	904	944
Business Activities Loans | Residential mortgages
Credit quality information
Total loans	2,277,615	2,327,298
Business Activities Loans | Residential mortgages | Pass
Credit quality information
Total loans	2,273,568	2,324,239
Business Activities Loans | Residential mortgages | Special mention
Credit quality information
Total loans	543	1,619
Business Activities Loans | Residential mortgages | Substandard
Credit quality information
Total loans	3,504	1,440
Business Activities Loans | Residential mortgages | Construction
Credit quality information
Total loans	9,170	9,582
Business Activities Loans | Residential mortgages | Construction | Pass
Credit quality information
Total loans	9,170	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	2,268,445	2,317,716
Business Activities Loans | Residential mortgages | 1-4 family | Pass
Credit quality information
Total loans	2,264,398	2,314,657
Business Activities Loans | Residential mortgages | 1-4 family | Special mention
Credit quality information
Total loans	543	1,619
Business Activities Loans | Residential mortgages | 1-4 family | Substandard
Credit quality information
Total loans	3,504	1,440
Business Activities Loans | Consumer
Credit quality information
Total loans	885,526	937,197
Business Activities Loans | Consumer | Performing
Credit quality information
Total loans	882,909	934,565
Business Activities Loans | Consumer | Nonperforming
Credit quality information
Total loans	2,617	2,632
Business Activities Loans | Consumer | Home equity
Credit quality information
Total loans	281,254	289,961
Business Activities Loans | Consumer | Home equity | Performing
Credit quality information
Total loans	280,440	289,028
Business Activities Loans | Consumer | Home equity | Nonperforming
Credit quality information
Total loans	814	933
Business Activities Loans | Consumer | Auto and other
Credit quality information
Total loans	604,272	647,236
Business Activities Loans | Consumer | Auto and other | Performing
Credit quality information
Total loans	602,469	645,537
Business Activities Loans | Consumer | Auto and other | Nonperforming
Credit quality information
Total loans	1,803	1,699
Acquired Loans
Credit quality information
Total loans	2,647,423	1,676,509
Acquired Loans | Special mention
Credit quality information
Total loans	29,187	20,833
Acquired Loans | Substandard
Credit quality information
Total loans	63,606	48,792
Acquired Loans | Non-Accrual
Credit quality information
Total loans	5,067	5,947
Acquired Loans | Classified
Credit quality information
Total loans	68,673	54,739
Acquired Loans | Criticized
Credit quality information
Total loans	97,860	75,572
Acquired Loans | Commercial real estate
Credit quality information
Total loans	1,345,849	811,510
Acquired Loans | Commercial real estate | Pass
Credit quality information
Total loans	1,287,546	768,203
Acquired Loans | Commercial real estate | Special mention
Credit quality information
Total loans	15,558	9,086
Acquired Loans | Commercial real estate | Substandard
Credit quality information
Total loans	42,745	34,221
Acquired Loans | Commercial real estate | Construction
Credit quality information
Total loans	58,497	25,220
Acquired Loans | Commercial real estate | Construction | Pass
Credit quality information
Total loans	56,384	24,519
Acquired Loans | Commercial real estate | Construction | Special mention
Credit quality information
Total loans	1,411	0
Acquired Loans | Commercial real estate | Construction | Substandard
Credit quality information
Total loans	702	701
Acquired Loans | Commercial real estate | Real Estate
Credit quality information
Total loans	1,287,352	786,290
Acquired Loans | Commercial real estate | Real Estate | Pass
Credit quality information
Total loans	1,231,162	743,684
Acquired Loans | Commercial real estate | Real Estate | Special mention
Credit quality information
Total loans	14,147	9,086
Acquired Loans | Commercial real estate | Real Estate | Substandard
Credit quality information
Total loans	42,043	33,520
Acquired Loans | Commercial and industrial loans
Credit quality information
Total loans	515,531	466,508
Acquired Loans | Commercial and industrial loans | Pass
Credit quality information
Total loans	483,151	439,602
Acquired Loans | Commercial and industrial loans | Special mention
Credit quality information
Total loans	12,893	11,374
Acquired Loans | Commercial and industrial loans | Substandard
Credit quality information
Total loans	19,487	15,532
Acquired Loans | Residential mortgages
Credit quality information
Total loans	604,765	239,126
Acquired Loans | Residential mortgages | Pass
Credit quality information
Total loans	598,736	235,347
Acquired Loans | Residential mortgages | Special mention
Credit quality information
Total loans	696	144
Acquired Loans | Residential mortgages | Substandard
Credit quality information
Total loans	5,333	3,635
Acquired Loans | Residential mortgages | Construction
Credit quality information
Total loans	8,158	174
Acquired Loans | Residential mortgages | Construction | Pass
Credit quality information
Total loans	8,158	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	596,607	238,952
Acquired Loans | Residential mortgages | 1-4 family | Pass
Credit quality information
Total loans	590,578	235,173
Acquired Loans | Residential mortgages | 1-4 family | Special mention
Credit quality information
Total loans	696	144
Acquired Loans | Residential mortgages | 1-4 family | Substandard
Credit quality information
Total loans	5,333	3,635
Acquired Loans | Consumer
Credit quality information
Total loans	181,278	159,365
Acquired Loans | Consumer | Performing
Credit quality information
Total loans	180,324	158,163
Acquired Loans | Consumer | Nonperforming
Credit quality information
Total loans	954	1,202
Acquired Loans | Consumer | Home equity
Credit quality information
Total loans	122,576	86,719
Acquired Loans | Consumer | Home equity | Performing
Credit quality information
Total loans	121,931	85,968
Acquired Loans | Consumer | Home equity | Nonperforming
Credit quality information
Total loans	645	751
Acquired Loans | Consumer | Auto and other
Credit quality information
Total loans	58,702	72,646
Acquired Loans | Consumer | Auto and other | Performing
Credit quality information
Total loans	58,393	72,195
Acquired Loans | Consumer | Auto and other | Nonperforming
Credit quality information
Total loans	$ 309	$ 451

DEPOSITS (Details)

DEPOSITS (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Deposits [Abstract]
Time less than $100,000	$ 888,791	$ 719,689
Time $100,000 through $250,000	2,221,209	2,060,500
Time more than $250,000	971,398	507,528
Total time deposits	4,081,398	3,287,717
Brokered time deposits	1,600,000	1,400,000
Reciprocal deposits	$ 94,600	$ 84,400

BORROWED FUNDS - Summary of Bor

BORROWED FUNDS - Summary of Borrowed Funds (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Short-term borrowings	$ 608,928	$ 1,118,832
Long-term borrowings	392,813	398,984
Total borrowings	$ 1,001,741	$ 1,517,816
Weighted average rate on short-term borrowings	2.65%	2.58%
Weighted average rate on long-term borrowings	3.34%	3.16%
Weighted average rate	2.92%	2.73%
Advances from the FHLB
Debt Instrument [Line Items]
Short-term borrowings	$ 608,928	$ 1,118,832
Long-term borrowings	$ 295,886	$ 309,466
Weighted average rate on short-term borrowings	2.65%	2.58%
Weighted average rate on long-term borrowings	2.36%	2.17%
Subordinated borrowings
Debt Instrument [Line Items]
Long-term borrowings	$ 74,143	$ 74,054
Weighted average rate on long-term borrowings	7.00%	7.00%
Trust I
Debt Instrument [Line Items]
Long-term borrowings	$ 15,464	$ 15,464
Weighted average rate on long-term borrowings	4.37%	4.50%
Trust II
Debt Instrument [Line Items]
Long-term borrowings	$ 7,320	$ 0
Weighted average rate on long-term borrowings	4.11%	0.00%

BORROWED FUNDS - Narrative (Det

BORROWED FUNDS - Narrative (Details) - USD ($)	1 Months Ended	6 Months Ended
	Sep. 30, 2012	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Line of credit, current		$ 3,000,000
Short-term debt		608,928,000	$ 1,118,832,000
Long-term borrowings		392,813,000	398,984,000
Advances from the FHLB
Debt Instrument [Line Items]
Long-term line of credit		0	0
Short-term debt		608,928,000	1,118,832,000
Long-term borrowings		295,886,000	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		4,500,000	1,400,000
Subordinated borrowings
Debt Instrument [Line Items]
Long-term borrowings		74,143,000	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		$ 399,000	$ 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		4.37%	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		4.11%
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	Jun. 30, 2019USD ($)
Principal
2019	$ 640,219
2020	195,603
2021	31,476
2022	17,770
2023 and beyond	19,746
Total FHLB advances	$ 904,814
Weighted Average Rate
Weighted Average Rate
2019	2.59%
2020	2.51%
2021	2.49%
2022	2.24%
2023 and beyond	2.13%
Total FHLB advances	2.55%

DERIVATIVE INSTRUMENTS AND HE_3

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Derivative [Line Items]
Notional amount	$ 4,422,594		$ 4,422,594		$ 3,303,570
Cash collateral pledged	78,900		78,900
Amortized cost of securities pledged as collateral to derivative counterparties	12,000		12,000
Fair value of securities as pledged collateral to derivative counterparties	12,000		12,000
Interest expense	37,643	$ 25,192	73,293	$ 46,581
Commercial counterparties
Derivative [Line Items]
Net asset position	500		500		5,900
Interest rate swaps
Derivative [Line Items]
Notional amount	10,700		10,700
Cash collateral pledged	78,896		78,896		25,412
Derivative liability	79,506		79,506		28,593
Amount of collateral posted for the net liability positions	78,900		78,900		25,400
Interest rate swaps | Commercial counterparties
Derivative [Line Items]
Cash collateral pledged	0		0		0
Net asset position	75,900		75,900		21,200
Derivative liability	735		735		9,745
Interest rate swaps | Institutional counterparties
Derivative [Line Items]
Cash collateral pledged	78,896		78,896		25,412
Derivative liability	78,771		78,771		18,848
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	471,456		471,456		$ 165,079
Economic hedges
Derivative [Line Items]
Notional amount	4,000,000		4,000,000
Credit valuation adjustments	$ 1,300		$ 1,300
Economic hedges | Tax advantaged economic development bonds
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	$ 3,100,000		$ 3,100,000
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	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 4,422,594	$ 3,303,570
Estimated fair value asset (liability)	4,826	1,680
Interest rate swaps
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	10,700
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	3,100,000
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	3,951,138	3,138,491
Estimated fair value asset (liability)	(4,179)	(2,247)
Designated as Hedging Instrument | Total economic hedges | Interest rate swaps | Tax advantaged economic development bonds
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 9,744	$ 10,090
Weighted average maturity	10 years 4 months 24 days	10 years 10 months 24 days
Weighted average rate, received	2.81%	2.72%
Weighted average rate, contract pay rate	5.09%	5.09%
Estimated fair value asset (liability)	$ (1,583)	$ (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	$ 1,546,563	$ 1,346,894
Weighted average maturity	6 years 8 months 12 days	6 years 8 months 12 days
Weighted average rate, received	4.47%	4.53%
Weighted average rate, contract pay rate	3.89%	4.04%
Estimated fair value asset (liability)	$ 75,114	$ 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	$ 1,546,563	$ 1,346,894
Weighted average maturity	6 years 8 months 12 days	6 years 8 months 12 days
Weighted average rate, received	3.89%	4.04%
Weighted average rate, contract pay rate	4.47%	4.53%
Estimated fair value asset (liability)	$ (76,909)	$ (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	$ 303,793	$ 243,806
Weighted average maturity	7 years 6 months	5 years 8 months 12 days
Estimated fair value asset (liability)	$ 343	$ 237
Designated as Hedging Instrument | Total economic hedges | Forward sale commitments
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 544,475	$ 190,807
Weighted average maturity	6 days	6 days
Estimated fair value asset (liability)	$ (1,144)	$ (734)
Not Designated as Hedging Instrument
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	471,456	165,079
Estimated fair value asset (liability)	9,005	3,927
Not Designated as Hedging Instrument | Commitments to lend
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 471,456	$ 165,079
Weighted average maturity	6 days	6 days
Estimated fair value asset (liability)	$ 9,005	$ 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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest rate swaps | Economic hedges | Industrial revenue bond
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	$ (222)	$ 163	$ (343)	$ 474
Interest rate swaps | Economic hedges | Loans with commercial loan customers
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	42,967	(5,270)	64,956	(19,939)
(Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income	(1,146)	95	(1,283)	332
Reverse interest rate swaps | Economic hedges | Loans with commercial loan customers
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	(42,967)	5,270	(64,956)	19,939
Risk participation agreements with dealer banks | Economic hedges
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	(19)	7	106	23
Forward sale commitments | Economic hedges
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	108	(658)	(410)	(1,567)
Realized gain in discontinued operations	(4,083)	1,077	(5,798)	4,999
Commitments to lend | Non-hedging derivatives
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	2,687	7,285	5,078	13,816
Realized gain in discontinued operations	$ 16,281	$ 2,491	$ 25,713	$ 3,094

DERIVATIVE INSTRUMENTS AND HE_6

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Offsetting of Financial Assets and Derivative Assets (Details) - Interest rate swaps - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	$ 76,426	$ 30,830
Gross amounts offset in the Statements of Condition	(47)	(3,749)
Net amounts of assets presented in the Statements of Condition	76,379	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	76,379	27,081
Institutional counterparties
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	543	9,485
Gross amounts offset in the Statements of Condition	(14)	(3,592)
Net amounts of assets presented in the Statements of Condition	529	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	529	5,893
Commercial counterparties
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	75,883	21,345
Gross amounts offset in the Statements of Condition	(33)	(157)
Net amounts of assets presented in the Statements of Condition	75,850	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	$ 75,850	$ 21,188

DERIVATIVE INSTRUMENTS AND HE_7

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Offsetting Financial Liabilities and Derivative Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts not offset in the Statements of Condition, cash collateral pledged	$ 78,900
Interest rate swaps
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(80,507)	$ (29,881)
Gross amounts offset in the Statements of Condition	1,001	1,288
Net amounts of liabilities presented in the Statements of Condition	(79,506)	(28,593)
Gross amounts not offset in the Statements of Condition, financial instruments	11,992	0
Gross amounts not offset in the Statements of Condition, cash collateral pledged	78,896	25,412
Net amount	11,382	(3,181)
Interest rate swaps | Institutional counterparties
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(79,767)	(19,949)
Gross amounts offset in the Statements of Condition	996	1,101
Net amounts of liabilities presented in the Statements of Condition	(78,771)	(18,848)
Gross amounts not offset in the Statements of Condition, financial instruments	11,992	0
Gross amounts not offset in the Statements of Condition, cash collateral pledged	78,896	25,412
Net amount	12,117	6,564
Interest rate swaps | Commercial counterparties
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(740)	(9,932)
Gross amounts offset in the Statements of Condition	5	187
Net amounts of liabilities presented in the Statements of Condition	(735)	(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	$ (735)	$ (9,745)

LEASES - Narrative (Details)

LEASES - Narrative (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)
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 7 months 6 days	10 years 7 months 6 days
Finance lease, weighted average remaining lease term	15 years 6 months	15 years 6 months
Operating lease expense	$ 3.6	$ 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	Jun. 30, 2019USD ($)
Lease Right-of-Use Assets
Operating lease right-of-use assets	$ 80,591
Finance lease right-of-use assets	7,981
Total Lease Right-of-Use Assets	88,572
Lease Liabilities
Operating lease liabilities	85,045
Finance lease liabilities	11,123
Total Lease Liabilities	$ 96,168

LEASES - Supplemental Cash Flow

LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 3,657	$ 7,155
Operating cash flows from finance leases	159	318
Financing cash flows from finance leases	98	196
Right-of-use assets obtained in exchange for lease obligations - operating leases	8,052	87,641
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	Jun. 30, 2019USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2019	$ 7,130
2020	13,403
2021	12,157
2022	10,981
2023	9,048
Thereafter	48,570
Total undiscounted lease payments	101,289
Less amounts representing interest	(16,244)
Lease liability	85,045
Finance Lease, Liability, Payment, Due [Abstract]
2019	508
2020	1,031
2021	1,031
2022	1,031
2023	1,037
Thereafter	11,296
Total undiscounted lease payments	15,934
Less amounts representing interest	(4,811)
Lease liability	$ 11,123

CAPITAL RATIOS AND SHAREHOLDE_3

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Actual and Required Capital Ratios (Details)	Jun. 30, 2019	Dec. 31, 2018
Tier 1 capital to risk-weighted assets
Total capital to risk weighted assets	12.90%	13.00%
Common equity tier 1 capital to risk weighted assets	11.40%	11.40%
Tier 1 capital to risk weighted assets	11.60%	11.60%
Tier 1 capital to average assets	9.70%	9.00%
Bank
Tier 1 capital to risk-weighted assets
Total capital to risk weighted assets	12.10%	12.20%
Common equity tier 1 capital to risk weighted assets	11.50%	11.60%
Tier 1 capital to risk weighted assets	11.50%	11.60%
Tier 1 capital to average assets	9.70%	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	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total shareholders’ equity	$ 1,779,837	$ 1,577,005	$ 1,552,918	$ 1,516,241	$ 1,497,657	$ 1,496,264
Accumulated other comprehensive income/(loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total shareholders’ equity	11,301	(2,906)	(13,470)	(21,266)	(15,427)	4,161
Net unrealized holding gain (loss) on AFS securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other accumulated comprehensive income (loss), before tax	18,056		(15,267)
Income taxes related to items of accumulated other comprehensive income	(4,738)		3,814
Total shareholders’ equity	13,318	(889)	(11,453)	(19,021)	(13,182)	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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net unrealized holding gain (loss)
Net of Tax	$ 14,206	$ (5,838)	$ 24,774	$ (20,069)
Less: reclassification adjustment for gains (losses) realized in net income
Net of Tax	(1)	1	3	1
Other comprehensive income (loss)
Before Tax	19,108	(7,840)	33,323	(27,002)
Tax Effect	(4,901)	2,001	(8,552)	6,932
Total other comprehensive income/(loss)	14,207	(5,839)	24,771	(20,070)
Total change to accumulated other comprehensive (loss)
Before Tax				(35,381)
Tax Effect				9,954
Net of Tax				(25,427)
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 holding gain (loss)
Before Tax	19,106	(7,839)	33,327	(27,001)
Tax Effect	(4,900)	2,001	(8,553)	6,932
Net of Tax	14,206	(5,838)	24,774	(20,069)
Less: reclassification adjustment for gains (losses) realized in net income
Before Tax	(2)	1	4	1
Tax Effect	1	0	(1)	0
Net of Tax	(1)	1	3	1
Other comprehensive income (loss)
Before Tax	19,108	(7,840)	33,323	(27,002)
Tax Effect	(4,901)	2,001	(8,552)	6,932
Total other comprehensive income/(loss)	$ 14,207	$ (5,839)	$ 24,771	$ (20,070)

CAPITAL RATIOS AND SHAREHOLDE_6

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Changes in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ 1,577,005	$ 1,497,657	$ 1,552,918	$ 1,496,264
Other comprehensive (loss) before reclassifications	14,206	(5,838)	24,774	(20,069)
Less: amounts reclassified from accumulated other comprehensive income (loss)	(1)	1	3	1
Total other comprehensive income/(loss)	14,207	(5,839)	24,771	(20,070)
Balance at end of period	1,779,837	1,516,241	1,779,837	1,516,241
Net unrealized holding gain (loss) on AFS securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(889)	(13,182)	(11,453)	6,008
Other comprehensive (loss) before reclassifications	14,206	(5,838)	24,774	(20,069)
Less: amounts reclassified from accumulated other comprehensive income (loss)	(1)	1	3	1
Total other comprehensive income/(loss)	14,207	(5,839)	24,771	(20,070)
Balance at end of period	13,318	(19,021)	13,318	(19,021)
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 (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)
Accumulated other comprehensive income/(loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(2,906)	(15,427)	(13,470)	4,161
Total other comprehensive income/(loss)	14,207	(5,839)	24,771	(20,070)
Balance at end of period	$ 11,301	$ (21,266)	$ 11,301	(21,266)
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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Amounts reclassified out of each component of accumulated other comprehensive income
Non-interest income	$ 17,512	$ 19,623	$ 39,234	$ 38,515
Tax expense	(5,118)	(8,145)	(12,035)	(15,482)
Income available to common shareholders	25,208	33,802	48,603	58,820
Amount Reclassified From Accumulated Other Comprehensive Income (loss)
Amounts reclassified out of each component of accumulated other comprehensive income
Income available to common shareholders	(1)	1	3	1
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	(2)	1	4	1
Tax expense	1	0	(1)	0
Income available to common shareholders	$ (1)	$ 1	$ 3	$ 1

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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings per share
Income from continuing operations	$ 23,954	$ 33,711	$ 48,226	$ 59,082
Income from discontinued operations	1,494	320	857	197
Net income	$ 25,448	$ 34,031	$ 49,083	$ 59,279
Average number of common shares issued (in shares)	49,026	46,212	47,627	46,212
Less: average number of treasury shares (in shares)	754	788	736	828
Less: average number of unvested stock award shares (in shares)	354	435	384	428
Plus: average participating preferred shares (in shares)	1,043	1,043	1,043	1,043
Average number of basic common shares outstanding (in shares)	48,961	46,032	47,550	45,999
Average number of diluted common shares outstanding (in shares)	49,114	46,215	47,700	46,206
Basic earnings per common share:
Continuing operations (in dollars per share)	$ 0.49	$ 0.73	$ 1.01	$ 1.29
Discontinued operations (in dollars per share)	0.03	0.01	0.02	0
Total (in dollars per share)	0.52	0.74	1.03	1.29
Diluted earnings per common share:
Continuing operations (in dollars per share)	0.49	0.73	1.01	1.28
Discontinued operations (in dollars per share)	0.03	0.01	0.02	0
Total (in dollars per share)	$ 0.52	$ 0.74	$ 1.03	$ 1.28
Unvested stock award shares
Earnings per share
Plus: dilutive effect of share-based payment arrangements (in shares)	107	152	120	176
Stock options
Earnings per share
Plus: dilutive effect of share-based payment arrangements (in shares)	46	31	30	31

EARNINGS PER SHARE - Narrative

EARNINGS PER SHARE - Narrative (Details) - shares shares in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Unvested stock award shares
Anti-dilutive securities
Securities excluded from the earnings per share calculations (in shares)	269	252
Stock options
Anti-dilutive securities
Securities excluded from the earnings per share calculations (in shares)	46	33

STOCK-BASED COMPENSATION PLAN_2

STOCK-BASED COMPENSATION PLANS (Details) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 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)			131
Stock awards vested (in shares)	(62)	(63)	(127)	(150)
Forfeited (in shares)			(51)
Balance at the end of the period (in shares)	324		324
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)			27.91
Stock awards vested (in dollars per share)			31.73
Forfeited (in dollars per share)			33.22
Balance at the end of the period (in dollars per share)	$ 32.76		$ 32.76
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)			(1)
Expired (in shares)			0
Balance at the end of the period (in shares)	163		163
Exercisable options at the end of the period (in shares)	163		163
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)			13.70
Expired (in dollars per share)			0
Balance at the end of the period (in dollars per share)	$ 21.15		21.15
Exercisable options at the end of the period (in dollars per share)	$ 21.15		$ 21.15

STOCK-BASED COMPENSATION PLAN_3

STOCK-BASED COMPENSATION PLANS - Narrative (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options			$ 14	$ 101
Total compensation cost	$ 1,000	$ 1,400	2,000	2,800
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options	$ 101	$ 15	$ 15	$ 101
Non-Vested Stock Awards Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vested (in shares)	62	63	127	150

FAIR VALUE MEASUREMENTS - Measu

FAIR VALUE MEASUREMENTS - Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 1,410,078	$ 1,399,647
Marketable equity securities	59,578	56,638
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,210	11,212
Securities available for sale	1,410,078	1,399,647
Marketable equity securities	59,578	56,638
Loans held for sale	370,114	96,233
Derivative assets	85,769	35,654
Derivative liabilities	80,875	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	58,521	56,074
Loans held for sale	0	0
Derivative assets	0	0
Derivative liabilities	1,144	734
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	0	0
Securities available for sale	1,410,078	1,399,647
Marketable equity securities	1,057	564
Loans held for sale	191,548	96,233
Derivative assets	76,764	31,727
Derivative liabilities	79,731	33,239
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,210	11,212
Securities available for sale	0	0
Marketable equity securities	0	0
Loans held for sale	178,566	0
Derivative assets	9,005	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	11,210	11,212
Loans held for sale	191,548	96,233
Derivative assets	85,769	35,654
Capitalized servicing rights	11,206	11,485
Derivative liabilities	80,875	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	119,873	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	888,962	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	182,258	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	60,651	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	119,743	111,490
Recurring | Total Fair Value | Debt securities | Trust preferred securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	8,550	8,466
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	30,041	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	59,578	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	1,144	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 | Trust preferred 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 | 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	58,521	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	191,548	96,233
Derivative assets	76,764	31,727
Capitalized servicing rights	0	0
Derivative liabilities	79,731	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	119,873	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	888,962	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	182,258	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	60,651	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	119,743	111,490
Recurring | Level 2 | Debt securities | Trust preferred securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	8,550	8,466
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	30,041	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	11,210	11,212
Loans held for sale	0	0
Derivative assets	9,005	3,927
Capitalized servicing rights	11,206	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 | Trust preferred 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 | 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) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)security	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of trading securities in the portfolio | security		1
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 191,548	$ 191,548		$ 96,233
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	191,548	191,548		96,233
Recurring | Level 2 | Loans Held for Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	191,548	191,548		96,233
Continuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payments for origination of mortgage loans held-for-sale		17,400	$ 12,900
Proceeds from sale and collection of loans held-for-sale		14,500	12,300
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	31	91	20
Continuing Operations | Recurring | Level 2 | Loans Held for Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	8,666	8,666		2,183
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	1,400	2,600	$ 1,100
Discontinued Operations | Recurring | Level 2 | Loans Held for Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 182,882	$ 182,882		$ 94,050

FAIR VALUE MEASUREMENTS - Loans

FAIR VALUE MEASUREMENTS - Loans Held for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Loans Held for Sale
Assets from discontinued operations	$ 212,745	$ 114,259
Level 2
Loans Held for Sale
Aggregate Fair Value	191,548	96,233
Recurring | Level 2
Loans Held for Sale
Aggregate Fair Value	191,548	96,233
Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	191,548	96,233
Assets from discontinued operations	185,647	93,019
Aggregate Fair Value Less Aggregate Unpaid Principal	5,901	3,214
Continuing Operations | Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	8,666	2,183
Assets from discontinued operations	8,533	2,140
Aggregate Fair Value Less Aggregate Unpaid Principal	133	43
Discontinued Operations | Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	182,882	94,050
Assets from discontinued operations	177,114	90,879
Aggregate Fair Value Less Aggregate Unpaid Principal	$ 5,768	$ 3,171

FAIR VALUE MEASUREMENTS - Chang

FAIR VALUE MEASUREMENTS - Changes in Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 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	$ 9,005	$ 7,285	$ 9,005	$ 7,285
Derivative Asset (Liability)
Beginning balance	6,318	6,531	3,927	5,259
Unrealized gain/(loss), net recognized in other non-interest income		0		0
Transfers to held for sale loans	(14,430)	(12,033)	(23,260)	(22,974)
Ending balance	9,005	7,285	9,005	7,285
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		(19)
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	11,164	11,795	11,212	12,277
Unrealized gain/(loss), net recognized in other non-interest income	219	(148)	345	(465)
Paydown of trading security	(173)	(164)	(347)	(329)
Balance at the end of the period	11,210	11,483	11,210	11,483
Unrealized gains (losses) relating to instruments still held at the end of the period	1,466	1,056	1,466	1,056
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	11,351	5,705	11,485	3,834
Unrealized gain/(loss), net recognized in other non-interest income		0		0
Additions to servicing rights	1,827	1,795	2,835	3,201
Balance at the end of the period	11,206	7,839	11,206	7,839
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	17,117	12,787	28,338	25,000
Discontinued Operations | Forward commitments
Derivative Asset (Liability)
Unrealized gain/(loss), net recognized in other non-interest income		0		0
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	$ (1,972)	$ 339	$ (3,114)	$ 804

FAIR VALUE MEASUREMENTS - Unobs

FAIR VALUE MEASUREMENTS - Unobservable Inputs Recurring (Details) $ in Thousands	Jun. 30, 2019USD ($)$ / contract	Dec. 31, 2018USD ($)$ / contract
Quantitative information about the significant unobservable inputs within Level 3
Trading security	$ 11,210	$ 11,212
Level 3 | Recurring
Quantitative information about the significant unobservable inputs within Level 3
Trading security	11,210	11,212
Total	$ 31,421	$ 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	0.0228	0.0307
Level 3 | Recurring | Commitments to lend
Quantitative information about the significant unobservable inputs within Level 3
Derivative asset	$ 9,005	$ 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	0.7248	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	$ 11,206	$ 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	0.0999	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	0.1274	0.0930

FAIR VALUE MEASUREMENTS - Mea_2

FAIR VALUE MEASUREMENTS - Measured on Non-recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Quantitative information about the significant unobservable inputs within Level 3
Other real estate owned	$ 154	$ 0
Non-recurring | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	4,614	4,892
Capitalized servicing rights	14,221	11,891
Other real estate owned	154	0
Total	$ 18,989	$ 16,783

FAIR VALUE MEASUREMENTS - Uno_2

FAIR VALUE MEASUREMENTS - Unobservable Inputs Non-recurring (Details) $ in Thousands	Jun. 30, 2019USD ($)$ / contract	Dec. 31, 2018USD ($)$ / contract
Quantitative information about the significant unobservable inputs within Level 3
Other real estate owned	$ 154	$ 0
Non-recurring | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	4,614	4,892
Capitalized servicing rights	14,221	11,891
Other real estate owned	154	0
Total	18,989	16,783
Non-recurring | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	$ 4,614	$ 4,892
Non-recurring | Minimum | Loss severity | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.0011	0
Non-recurring | Minimum | Appraised value | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	300	300
Non-recurring | Maximum | Loss severity | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.2566	0.5116
Non-recurring | Maximum | Appraised value | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	731,000	877,000
Non-recurring | Weighted Average | Loss severity | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.0344	0.0675
Non-recurring | Weighted Average | Appraised value | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	316,800	363,000
Non-recurring | Capitalized servicing rights | Discounted Cash Flow | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Capitalized servicing rights	$ 14,221	$ 11,891
Non-recurring | Capitalized servicing rights | Minimum | Constant prepayment rate (CPR) | Discounted Cash Flow | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.0840	0.0774
Non-recurring | Capitalized servicing rights | Minimum | Discount rate | Discounted Cash Flow | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1000	0.1000
Non-recurring | Capitalized servicing rights | Maximum | Constant prepayment rate (CPR) | Discounted Cash Flow | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1273	0.1129
Non-recurring | Capitalized servicing rights | Maximum | Discount rate | Discounted Cash Flow | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1273	0.1413
Non-recurring | Capitalized servicing rights | Weighted Average | Constant prepayment rate (CPR) | Discounted Cash Flow | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1150	0.0974
Non-recurring | Capitalized servicing rights | Weighted Average | Discount rate | Discounted Cash Flow | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1130	0.1199
Other Real Estate Owned | Non-recurring | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Other real estate owned	$ 154
Other Real Estate Owned | Non-recurring | Minimum | Appraised value | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	49,000
Other Real Estate Owned | Non-recurring | Maximum | Appraised value | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	105,000
Other Real Estate Owned | Non-recurring | Weighted Average | Appraised value | Fair Value of Collateral | Level 3
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	87,000

FAIR VALUE MEASUREMENTS - Fair

FAIR VALUE MEASUREMENTS - Fair Values and Carrying Amounts (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financial Assets
Marketable equity securities	$ 59,578	$ 56,638
Securities available for sale	1,410,078	1,399,647
Securities held to maturity	377,056	371,224
FHLB bank stock and restricted securities	59,356	77,344
Level 1
Financial Assets
Cash and cash equivalents	229,306	183,189
Trading security	0	0
Marketable equity securities	58,521	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
Cash surrender value of bank-owned life insurance policies	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	1,144	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	1,410,078	1,399,647
Securities held to maturity	359,084	353,182
Net loans	0	0
Loans held for sale	191,548	96,233
Accrued interest receivable	41,864	36,879
Cash surrender value of bank-owned life insurance policies	227,458
Derivative assets	76,764	31,727
Financial Liabilities
Total deposits	10,576,006	8,970,321
Short-term debt	608,946	1,118,820
Long-term Federal Home Loan Bank advances	297,184	308,336
Subordinated borrowings	100,924	97,376
Derivative liabilities	79,731	33,239
Level 3
Financial Assets
Cash and cash equivalents	0	0
Trading security	11,210	11,212
Marketable equity securities	0	0
Securities available for sale	0	0
Securities held to maturity	17,972	18,042
Net loans	10,151,656	9,026,442
Loans held for sale	178,566	0
Accrued interest receivable	0	0
Cash surrender value of bank-owned life insurance policies	0
Derivative assets	9,005	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	229,306	183,189
Trading security	11,210	11,212
Marketable equity securities	59,578	56,638
Securities available for sale	1,410,078	1,399,647
Securities held to maturity	364,463	373,763
FHLB bank stock and restricted securities	59,356	77,344
Net loans	9,879,672	8,981,784
Loans held for sale	367,692	96,233
Accrued interest receivable	41,864	36,879
Cash surrender value of bank-owned life insurance policies	227,458
Derivative assets	85,769	35,654
Financial Liabilities
Total deposits	10,565,956	8,982,381
Short-term debt	608,928	1,118,832
Long-term Federal Home Loan Bank advances	295,886	309,466
Subordinated borrowings	96,927	89,518
Derivative liabilities	80,875	33,973
Fair Value
Financial Assets
Cash and cash equivalents	229,306	183,189
Trading security	11,210	11,212
Marketable equity securities	59,578	56,638
Securities available for sale	1,410,078	1,399,647
Securities held to maturity	377,056	371,224
Net loans	10,151,656	9,026,442
Loans held for sale	370,114	96,233
Accrued interest receivable	41,864	36,879
Cash surrender value of bank-owned life insurance policies	227,458
Derivative assets	85,769	35,654
Financial Liabilities
Total deposits	10,576,006	8,970,321
Short-term debt	608,946	1,118,820
Long-term Federal Home Loan Bank advances	297,184	308,336
Subordinated borrowings	100,924	97,376
Derivative liabilities	$ 80,875	$ 33,973

NET INTEREST INCOME AFTER PRO_3

NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Banking and Thrift, Interest [Abstract]
Net interest income from continuing operations	$ 91,595	$ 90,292	$ 177,054	$ 175,049
Provision for loan losses	3,467	6,532	7,468	12,107
Net interest income from continuing operations after provision for loan losses	$ 88,128	$ 83,760	$ 169,586	$ 162,942

Uncategorized Items - bhlb-2019

Label	Element	Value
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 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 2018-01 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(896,000)
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