Berkshire Hills Bancorp (BHLB) 10-Q 10 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 07, 2019
Document and Entity Information
Entity Registrant Name	BERKSHIRE HILLS BANCORP INC
Entity Central Index Key	0001108134
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding (in shares)		45,468,952
Entity Emerging Growth Company	false
Entity Small Business	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 98,689	$ 100,972
Short-term investments	68,930	82,217
Total cash and cash equivalents	167,619	183,189
Trading security, at fair value	11,164	11,212
Marketable equity securities, at fair value	59,121	56,638
Securities available for sale, at fair value	1,386,768	1,399,647
Securities held to maturity (fair values of $375,980 and $371,224)	369,331	373,763
Federal Home Loan Bank stock and other restricted securities	54,624	77,344
Total securities	1,881,008	1,918,604
Loans held for sale, at fair value	4,773	2,183
Commercial real estate loans	3,388,139	3,400,221
Commercial and industrial loans	1,957,339	1,980,046
Residential mortgages	2,544,824	2,566,424
Consumer loans	1,057,193	1,096,562
Total loans	8,947,495	9,043,253
Less: Allowance for loan losses	(62,038)	(61,469)
Net loans	8,885,457	8,981,784
Premises and equipment, net	105,651	106,500
Goodwill	518,325	518,325
Other intangible assets	32,219	33,418
Cash surrender value of bank-owned life insurance policies	191,768	190,609
Deferred tax assets, net	38,783	42,434
Other assets	182,720	120,926
Assets from discontinued operations	165,078	114,259
Total assets	12,173,401	12,212,231
Liabilities
Demand deposits	1,526,584	1,603,019
NOW and other deposits	820,177	1,122,321
Money market deposits	2,743,448	2,245,195
Savings deposits	731,711	724,129
Time deposits	3,344,495	3,287,717
Total deposits	9,166,415	8,982,381
Short-term debt	861,349	1,118,832
Long-term Federal Home Loan Bank advances	258,840	309,466
Subordinated borrowings	89,562	89,518
Total borrowings	1,209,751	1,517,816
Other liabilities	204,725	149,519
Liabilities from discontinued operations	15,505	9,597
Total liabilities	10,596,396	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 46,211,894 shares issued and 45,521,962 shares outstanding in 2019; 100,000,000 shares authorized, 46,211,894 shares issued and 45,416,855 shares outstanding in 2018)	460	460
Additional paid-in capital - common stock	1,244,975	1,245,013
Unearned compensation	(8,825)	(6,594)
Retained earnings	321,759	308,839
Accumulated other comprehensive (loss)	(2,906)	(13,470)
Treasury stock, at cost (689,932 shares in 2019 and 795,039 shares in 2018)	(19,091)	(21,963)
Total shareholders’ equity	1,577,005	1,552,918
Total liabilities and shareholders’ equity	$ 12,173,401	$ 12,212,231

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value	$ 375,980	$ 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)	46,211,894	46,211,894
Common stock, shares outstanding (in shares)	45,521,962	45,416,855
Treasury stock (in shares)	689,932	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
	Mar. 31, 2019	Mar. 31, 2018
Interest and dividend income from continuing operations
Loans	$ 105,651	$ 91,741
Securities and other	15,458	14,405
Total interest and dividend income	121,109	106,146
Interest expense from continuing operations
Deposits	26,622	15,325
Borrowings	9,028	6,064
Total interest expense	35,650	21,389
Net interest income from continuing operations	85,459	84,757
Non-interest income from continuing operations
Other, net	970	1,268
Gain/(loss) on securities, net	2,551	(1,502)
Gain on sale of business operations and other assets, net	0	481
Total non-interest income	21,722	18,892
Total net revenue from continuing operations	107,181	103,649
Provision for loan losses	4,001	5,575
Non-interest expense from continuing operations
Compensation and benefits	33,500	33,847
Occupancy and equipment	9,446	9,192
Technology and communications	6,257	6,484
Marketing and promotion	1,267	1,222
Professional services	2,275	1,696
FDIC premiums and assessments	1,639	1,195
Other real estate owned and foreclosures	2	67
Amortization of intangible assets	1,200	1,268
Acquisition, restructuring, and other expenses	7,015	5,093
Other	9,390	5,302
Total non-interest expense	71,991	65,366
Income from continuing operations before income taxes	31,189	32,708
Income tax expense	6,917	7,337
Net income from continuing operations	24,272	25,371
(Loss) from discontinued operations before income taxes	(854)	(162)
Income tax (benefit)	(217)	(39)
Net (loss) from discontinued operations	(637)	(123)
Net income	23,635	25,248
Preferred stock dividend	240	230
Income available to common shareholders	$ 23,395	$ 25,018
Basic earnings per common share:
Continuing operations (in dollars per share)	$ 0.52	$ 0.55
Discontinued operations (in dollars per share)	(0.01)	0
Total (in dollars per share)	0.51	0.55
Diluted earnings per common share:
Continuing operations (in dollars per share)	0.52	0.55
Discontinued operations (in dollars per share)	(0.01)	0
Total (in dollars per share)	$ 0.51	$ 0.55
Weighted average shares outstanding:
Basic (in shares)	46,113	45,966
Diluted (in shares)	46,261	46,200
Mortgage banking originations
Non-interest income from continuing operations
Total non-interest income	$ 46	$ 138
Loan related income
Non-interest income from continuing operations
Total non-interest income	6,003	4,819
Deposit related fees
Non-interest income from continuing operations
Total non-interest income	6,858	8,066
Insurance commissions and fees
Non-interest income from continuing operations
Total non-interest income	2,853	3,025
Wealth management fees
Non-interest income from continuing operations
Total non-interest income	2,441	2,597
Total fee income
Non-interest income from continuing operations
Total non-interest income	$ 18,201	$ 18,645

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income from continuing operations	$ 23,635	$ 25,248
Other comprehensive income, before tax:
Changes in unrealized loss on debt securities available-for-sale	14,215	(19,162)
Income taxes related to other comprehensive income:
Changes in unrealized loss on debt securities available-for-sale	(3,651)	4,931
Total other comprehensive income/(loss)	10,564	(14,231)
Total comprehensive income	$ 34,199	$ 11,017

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	25,248					25,248
Other comprehensive income (loss)	(14,231)						(14,231)
Total comprehensive income	11,017					25,248	(14,231)
Cash dividends declared on common shares	(9,982)					(9,982)
Cash dividends declared on preferred shares	(230)					(230)
Forfeited shares (in shares)			(4)
Forfeited shares				31	125			(156)
Exercise of stock options (in shares)			5
Exercise of stock options	76					(73)		149
Restricted stock grants (in shares)			92
Restricted stock grants				1,056	(3,452)			2,396
Stock-based compensation	1,382				1,382
Other, net (in shares)			(23)
Other, net	(870)			16				(886)
Balance (in shares) at Mar. 31, 2018		522	45,360
Balance at end of period at Mar. 31, 2018	1,497,657	$ 40,633	$ 460	1,243,590	(8,476)	259,499	(15,427)	(22,622)
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	23,635					23,635
Other comprehensive income (loss)	10,564						10,564
Total comprehensive income	34,199					23,635	10,564
Cash dividends declared on common shares	(10,475)					(10,475)
Cash dividends declared on preferred shares	(240)					(240)
Forfeited shares (in shares)			(13)
Forfeited shares				(41)	444			(403)
Restricted stock grants (in shares)			131
Restricted stock grants				3	(3,664)			3,661
Stock-based compensation	989				989
Other, net (in shares)			(13)
Other, net	(386)							(386)
Balance (in shares) at Mar. 31, 2019		522	45,522
Balance at end of period at Mar. 31, 2019	$ 1,577,005	$ 40,633	$ 460	$ 1,244,975	$ (8,825)	$ 321,759	$ (2,906)	$ (19,091)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Common stock, cash dividends declared (in dollars per share)	$ 0.23	$ 0.22
Preferred stock, cash dividends declared (in dollars per share)	$ 0.46	$ 0.44

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 23,635,000	$ 25,248,000
Net (loss) from discontinued operations	(637,000)	(123,000)
Net income from continuing operations	24,272,000	25,371,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	4,001,000	5,575,000
Net amortization of securities	624,000	743,000
Change in unamortized net loan costs and premiums	2,161,000	(577,000)
Premises and equipment depreciation and amortization expense	2,184,000	2,520,000
Stock-based compensation expense	989,000	1,382,000
Accretion of purchase accounting entries, net	(1,338,000)	(3,838,000)
Amortization of other intangibles	1,200,000	1,268,000
Income from cash surrender value of bank-owned life insurance policies	(1,160,000)	(1,158,000)
Securities (gains) losses, net	(2,551,000)	1,502,000
Net (decrease) in loans held-for-sale	(2,590,000)	(1,158,000)
Change in right-of-use lease assets	3,815,000
Change in lease liabilities	(3,981,000)
Loss on disposition of assets	1,615,000	0
Amortization of interest in tax-advantaged projects	579,000	506,000
Net change in other	(5,158,000)	(1,193,000)
Net cash provided by operating activities of continuing operations	24,662,000	30,943,000
Net cash (used) provided by operating activities of discontinued operations	(44,911,000)	53,535,000
Net cash (used) provided by operating activities	(20,249,000)	84,478,000
Cash flows from investing activities:
Net decrease in trading security	174,000	165,000
Purchases of marketable equity securities	(11,900,000)	(12,688,000)
Proceeds from sales of marketable equity securities	11,896,000	26,096,000
Purchases of securities available for sale	(15,180,000)	(116,423,000)
Proceeds from sales of securities available for sale	2,587,000	0
Proceeds from maturities, calls, and prepayments of securities available for sale	39,542,000	44,069,000
Purchases of securities held to maturity	(159,000)	(1,618,000)
Proceeds from maturities, calls, and prepayments of securities held to maturity	4,111,000	2,885,000
Net change in loans	87,553,000	(148,619,000)
Purchase of Federal Home Loan Bank stock	(15,930,000)	(17,614,000)
Proceeds from sale of Federal Home Loan Bank stock	38,650,000	16,661,000
Net investment in limited partnership tax credits	505,000	0
Purchase of premises and equipment, net	(2,382,000)	(4,376,000)
Net cash provided (used) by investing activities	139,467,000	(211,462,000)
Cash flows from financing activities:
Net increase in deposits	184,034,000	(65,870,000)
Proceeds from Federal Home Loan Bank advances and other borrowings	1,292,517,000	1,235,892,000
Repayments of Federal Home Loan Bank advances and other borrowings	(1,600,624,000)	(1,157,778,000)
Exercise of stock options	0	76,000
Common and preferred stock cash dividends paid	(10,715,000)	(10,212,000)
Net cash (provided) used by financing activities	(134,788,000)	2,108,000
Net change in cash and cash equivalents	(15,570,000)	(124,876,000)
Cash and cash equivalents at beginning of period	183,189,000	248,763,000
Cash and cash equivalents at end of period	167,619,000	123,887,000
Supplemental cash flow information:
Interest paid on deposits	26,118,000	15,345,000
Interest paid on borrowed funds	10,656,000	6,725,000
Income taxes paid, net	794,000	1,065,000
Other non-cash changes:
Other net comprehensive income	10,564,000	(14,231,000)
Real estate owned acquired in settlement of loans	$ 0	$ 0

BASIS OF PRESENTATION

BASIS OF PRESENTATION	3 Months Ended
	Mar. 31, 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 10 - 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. 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 10 - 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. 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 transition guidance. 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. 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 negative adjustment to retained earnings. 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.

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS	3 Months Ended
	Mar. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
DISCONTINUED OPERATIONS	DISCONTINUED OPERATIONS During the period ended March 31, 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 March 31, 2019 and December 31, 2018: (in thousands) March 31, 2019 December 31, 2018 Assets Loans held for sale, at fair value 136,821 94,050 Premises and equipment, net 1,858 1,867 Other assets 26,399 18,342 Total assets 165,078 114,259 Liabilities Other liabilities 15,505 9,597 Total liabilities 15,505 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 months ended March 31, 2019 and March 31, 2018: Three Months Ended March 31, (in thousands) 2019 2018 Interest income 1,044 1,094 Interest expense 584 381 Net interest income 460 713 Non-interest income 8,813 10,628 Total net revenue 9,273 11,341 Non-interest expense 10,127 11,503 Loss from discontinued operations before income taxes (854 ) (162 ) Income tax (benefit) (217 ) (39 ) Net loss from discontinued operations (637 ) (123 ) 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	3 Months Ended
	Mar. 31, 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 $9.9 million and $10.1 million , and a fair value of $11.2 million and $11.2 million , at March 31, 2019 and December 31, 2018 , respectively. As discussed further in Note 9 - 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 March 31, 2019 .

SECURITIES AVAILABLE FOR SALE,

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES	3 Months Ended
	Mar. 31, 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 March 31, 2019 Securities available for sale Municipal bonds and obligations $ 113,521 $ 4,088 $ (142 ) $ 117,467 Agency collateralized mortgage obligations 913,263 1,964 (7,313 ) 907,914 Agency mortgage-backed securities 168,914 78 (2,876 ) 166,116 Agency commercial mortgage-backed securities 61,914 — (2,536 ) 59,378 Corporate bonds 119,893 434 (1,060 ) 119,267 Trust preferred securities 8,319 283 — 8,602 Other bonds and obligations 8,016 30 (22 ) 8,024 Total securities available for sale 1,393,840 6,877 (13,949 ) 1,386,768 Securities held to maturity Municipal bonds and obligations 260,968 7,149 (136 ) 267,981 Agency collateralized mortgage obligations 71,226 1,445 (346 ) 72,325 Agency mortgage-backed securities 7,074 — (174 ) 6,900 Agency commercial mortgage-backed securities 10,401 — (199 ) 10,202 Tax advantaged economic development bonds 19,363 95 (1,185 ) 18,273 Other bonds and obligations 299 — — 299 Total securities held to maturity 369,331 8,689 (2,040 ) 375,980 Marketable equity securities 55,409 5,217 (1,505 ) 59,121 Total $ 1,818,580 $ 20,783 $ (17,494 ) $ 1,821,869 (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 March 31, 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 $ 7,747 $ 7,759 $ 2,614 $ 2,614 Over 1 year to 5 years 26,687 26,837 14,799 14,865 Over 5 years to 10 years 82,660 83,351 13,494 13,577 Over 10 years 132,655 135,413 249,723 255,497 Total bonds and obligations 249,749 253,360 280,630 286,553 Mortgage-backed securities 1,144,091 1,133,408 88,701 89,427 Total $ 1,393,840 $ 1,386,768 $ 369,331 $ 375,980 During the three months ended March 31, 2019, purchases of AFS securities totaled $15.2 million and the proceeds from the sale of AFS securities totaled $2.6 million . During the three months ended March 31, 2019, gross gains on sale of AFS securities totaled $6 thousand and there were no gross losses. These gains are included in Gain/(loss) on securities, net on the consolidated statements of income. During the three months ended March 31, 2018, purchases of AFS securities totaled $116.4 million . There were no sales of AFS securities during the three months ended March 31, 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 March 31, 2019 Securities available for sale Municipal bonds and obligations $ 7 $ 323 $ 135 $ 8,971 $ 142 $ 9,294 Agency collateralized mortgage obligations 121 67,340 7,192 612,951 7,313 680,291 Agency mortgage-backed securities 27 10,306 2,849 146,416 2,876 156,722 Agency commercial mortgage-backed securities 30 4,002 2,506 55,375 2,536 59,377 Corporate bonds 1,040 76,670 20 980 1,060 77,650 Other bonds and obligations — — 22 3,039 22 3,039 Total securities available for sale 1,225 158,641 12,724 827,732 13,949 986,373 Securities held to maturity Municipal bonds and obligations — — 136 13,308 136 13,308 Agency collateralized mortgage obligations — — 346 10,858 346 10,858 Agency mortgage-backed securities — — 174 6,900 174 6,900 Agency commercial mortgage-backed securities — — 199 10,202 199 10,202 Tax advantaged economic development bonds — — 1,185 6,884 1,185 6,884 Total securities held to maturity — — 2,040 48,152 2,040 48,152 Total $ 1,225 $ 158,641 $ 14,764 $ 875,884 $ 15,989 $ 1,034,525 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 March 31, 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 March 31, 2019 : AFS municipal bonds and obligations At March 31, 2019, 7 out of the total 311 securities in the Company’s portfolio of AFS municipal bonds and obligations were in unrealized loss positions. Aggregate unrealized losses represented 1.5% 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 March 31, 2019 , 198 out of the total 268 securities in the Company’s portfolio of AFS collateralized mortgage obligations were in unrealized loss positions. Aggregate unrealized losses represented 1.1% 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 March 31, 2019 , 78 out of the total 136 securities in the Company’s portfolio of AFS mortgage-backed securities were in unrealized loss positions. Aggregate unrealized losses represented 2.4% 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 March 31, 2019 , 14 out of the total 24 securities in the Company’s portfolio of AFS corporate bonds were in unrealized loss positions. Aggregate unrealized losses represents 1.4% of the amortized cost of bonds in unrealized loss positions. The Company reviews the financial strength of all of these bonds and has concluded that the amortized cost remains supported by the expected future cash flows of these securities. AFS other bonds and obligations At March 31, 2019 , 6 out of the total 12 securities in the Company’s portfolio of other bonds and obligations were in unrealized loss positions. Aggregate unrealized losses represented 0.7% of the amortized cost of securities in unrealized loss positions. The securities are all investment grade rated, and there were no material underlying credit downgrades during the quarter. All securities are performing. HTM Municipal bonds and obligations At March 31, 2019 , 13 out of the total 220 securities in the Company’s portfolio of HTM municipal bonds and obligations were in unrealized loss positions. Aggregate unrealized losses represented 1.0% of the amortized cost of securities in unrealized loss positions. The Company continually monitors the municipal bond sector of the market carefully and periodically evaluates the appropriate level of exposure to the market. At this time, the Company feels the bonds in this portfolio carry minimal risk of default and the Company is appropriately compensated for that risk. There were no material underlying credit downgrades during the quarter. All securities are performing. HTM collateralized mortgage obligations At March 31, 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 2.5% 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 March 31, 2019 , 2 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 2.1% 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 March 31, 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 14.7% 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	3 Months Ended
	Mar. 31, 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. The following is a summary of total loans: March 31, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ 302,258 $ 25,515 $ 327,773 $ 327,792 $ 25,220 $ 353,012 Other commercial real estate 2,302,554 757,812 3,060,366 2,260,919 786,290 3,047,209 Total commercial real estate 2,604,812 783,327 3,388,139 2,588,711 811,510 3,400,221 Commercial and industrial loans: 1,540,985 416,354 1,957,339 1,513,538 466,508 1,980,046 Total commercial loans 4,145,797 1,199,681 5,345,478 4,102,249 1,278,018 5,380,267 Residential mortgages: 1-4 family 2,300,406 233,036 2,533,442 2,317,716 238,952 2,556,668 Construction 11,228 154 11,382 9,582 174 9,756 Total residential mortgages 2,311,634 233,190 2,544,824 2,327,298 239,126 2,566,424 Consumer loans: Home equity 281,568 83,760 365,328 289,961 86,719 376,680 Auto and other 627,360 64,505 691,865 647,236 72,646 719,882 Total consumer loans 908,928 148,265 1,057,193 937,197 159,365 1,096,562 Total loans $ 7,366,359 $ 1,581,136 $ 8,947,495 $ 7,366,744 $ 1,676,509 $ 9,043,253 The carrying amount of the acquired loans at March 31, 2019 totaled $1.6 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 $46.1 million (and a note balance of $120.9 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 $1.5 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 March 31, (In thousands) 2019 2018 Balance at beginning of period $ 2,840 $ 11,561 Accretion (1,320 ) (3,433 ) Net reclassifications from (to) nonaccretable difference 665 2,533 Payments received, net (55 ) (188 ) Reclassification to TDR 9 — Disposals — (81 ) Balance at end of period $ 2,139 $ 10,392 The following is a summary of past due loans at March 31, 2019 and December 31, 2018: Business Activities Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Current Total Loans Past Due > March 31, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ 302,258 $ 302,258 $ — Other commercial real estate 670 749 16,535 17,954 2,284,600 2,302,554 119 Total 670 749 16,535 17,954 2,586,858 2,604,812 119 Commercial and industrial loans: Total 2,458 540 4,586 7,584 1,533,401 1,540,985 56 Residential mortgages: 1-4 family 1,214 531 1,857 3,602 2,296,804 2,300,406 461 Construction — — — — 11,228 11,228 — Total 1,214 531 1,857 3,602 2,308,032 2,311,634 461 Consumer loans: Home equity 161 4 917 1,082 280,486 281,568 — Auto and other 2,310 582 1,962 4,854 622,506 627,360 44 Total 2,471 586 2,879 5,936 902,992 908,928 44 Total $ 6,813 $ 2,406 $ 25,857 $ 35,076 $ 7,331,283 $ 7,366,359 $ 680 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 > March 31, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ — $ 25,515 $ — Other commercial real estate 3,935 460 4,110 8,505 10,972 757,812 2,013 Total 3,935 460 4,110 8,505 10,972 783,327 2,013 Commercial and industrial loans: Total 507 33 1,227 1,767 29,394 416,354 144 Residential mortgages: 1-4 family 610 442 1,020 2,072 4,890 233,036 75 Construction — — — — — 154 — Total 610 442 1,020 2,072 4,890 233,190 75 Consumer loans: Home equity 287 — 1,052 1,339 546 83,760 158 Auto and other 193 66 405 664 294 64,505 97 Total 480 66 1,457 2,003 840 148,265 255 Total $ 5,532 $ 1,001 $ 7,814 $ 14,347 $ 46,096 $ 1,581,136 $ 2,487 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 March 31, 2019 and December 31, 2018: March 31, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ — $ — $ — $ — $ — $ — Other commercial real estate 16,416 2,097 18,513 17,840 2,531 20,371 Total 16,416 2,097 18,513 17,840 2,531 20,371 Commercial and industrial loans: Total 4,530 1,083 5,613 4,632 1,371 6,003 Residential mortgages: 1-4 family 1,396 945 2,341 1,374 843 2,217 Construction — — — — — — Total 1,396 945 2,341 1,374 843 2,217 Consumer loans: Home equity 917 894 1,811 933 751 1,684 Auto and other 1,918 308 2,226 1,699 451 2,150 Total 2,835 1,202 4,037 2,632 1,202 3,834 Total non-accrual loans $ 25,177 $ 5,327 $ 30,504 $ 26,478 $ 5,947 $ 32,425 Loans evaluated for impairment as of March 31, 2019 and December 31, 2018 were as follows: Business Activities Loans (In thousands) Commercial Commercial and Residential Consumer Total March 31, 2019 Loans receivable: Balance at end of period Individually evaluated for impairment $ 21,036 $ 2,989 $ 2,061 $ 335 $ 26,421 Collectively evaluated for impairment 2,583,776 1,537,996 2,309,573 908,593 7,339,938 Total $ 2,604,812 $ 1,540,985 $ 2,311,634 $ 908,928 $ 7,366,359 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 March 31, 2019 Loans receivable: Balance at end of Period Individually evaluated for impairment $ 3,538 $ 686 $ 358 $ 775 $ 5,357 Purchased credit-impaired loans 10,972 29,394 4,890 840 46,096 Collectively evaluated for impairment 768,817 386,274 227,942 146,650 1,529,683 Total $ 783,327 $ 416,354 $ 233,190 $ 148,265 $ 1,581,136 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 March 31, 2019 and December 31, 2018: Business Activities Loans March 31, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 20,446 $ 29,916 $ — Commercial and industrial loans 1,279 2,268 — Residential mortgages - 1-4 family 440 438 — Consumer - home equity 228 241 — Consumer - other — — — With an allowance recorded: Other commercial real estate loans $ 540 $ 548 $ 7 Commercial and industrial loans 1,724 1,718 52 Residential mortgages - 1-4 family 1,637 1,759 120 Consumer - home equity 96 103 8 Consumer - other 12 12 1 Total Commercial real estate $ 20,986 $ 30,464 $ 7 Commercial and industrial loans 3,003 3,986 52 Residential mortgages 2,077 2,197 120 Consumer 336 356 9 Total impaired loans $ 26,402 $ 37,003 $ 188 (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 March 31, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 2,531 $ 5,694 $ — Commercial and industrial loans 494 612 — Residential mortgages - 1-4 family 270 323 — Consumer - home equity 532 1,326 — Consumer - other — — — With an allowance recorded: Other commercial real estate loans $ 910 $ 916 $ 48 Commercial and industrial loans 195 207 4 Residential mortgages - 1-4 family 91 115 36 Consumer - home equity 202 195 37 Consumer - other 42 39 7 Total x Commercial real estate $ 3,441 $ 6,610 $ 48 Commercial and industrial loans 689 819 4 Residential mortgages 361 438 36 Consumer 776 1,560 44 Total impaired loans $ 5,267 $ 9,427 $ 132 (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 March 31, 2019 and 2018: Business Activities Loans Three Months Ended Three Months Ended (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 21,221 $ 64 $ 20,272 $ 91 Commercial and industrial loans 1,389 26 2,625 62 Residential mortgages - 1-4 family 441 6 807 14 Consumer - home equity 228 1 1,730 2 Consumer - other — — — — With an allowance recorded: Other commercial real estate loans $ 616 $ 6 $ 13,198 $ 169 Commercial and industrial loans 1,757 40 3,933 64 Residential mortgages - 1-4 family 1,645 19 1,484 17 Consumer - home equity 97 1 46 1 Consumer - other 12 — 17 — Total Commercial real estate $ 21,837 $ 70 $ 33,470 $ 260 Commercial and industrial loans 3,146 66 6,558 126 Residential mortgages 2,086 25 2,291 31 Consumer loans 337 2 1,793 3 Total impaired loans $ 27,406 $ 163 $ 44,112 $ 420 Acquired Loans Three Months Ended March 31, 2019 Three Months Ended March 31, 2018 (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 2,511 $ 37 $ 2,348 $ 46 Commercial and industrial loans 512 12 425 9 Residential mortgages - 1-4 family 270 2 700 4 Consumer - home equity 601 1 953 — Consumer - other — — 19 1 With an allowance recorded: Other commercial real estate loans $ 917 $ 16 $ 2,876 $ 37 Commercial and industrial loans 221 9 61 2 Residential mortgages - 1-4 family 92 2 1,520 1 Consumer - home equity 203 3 324 4 Consumer - other 43 — — — Total Commercial real estate $ 3,428 $ 53 $ 5,224 $ 83 Commercial and industrial loans 733 21 486 11 Residential mortgages 362 4 2,220 5 Consumer loans 847 4 1,296 5 Total impaired loans $ 5,370 $ 82 $ 9,226 $ 104 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 months ended March 31, 2019 and March 31, 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 months ended March 31, 2019 and 2018 were attributable to interest rate concessions, principal concessions, maturity date extensions, modified payment terms, reamortization, and accelerated maturity. Three Months Ended March 31, 2019 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate 2 $ 145 $ 145 Commercial and industrial 1 193 193 Residential - 1-4 Family — — — Total 3 $ 338 $ 338 Three Months Ended March 31, 2018 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate — $ — $ — Commercial and industrial 4 1,995 1,924 Residential - 1-4 Family 1 118 118 Total 5 $ 2,113 $ 2,042 There were no TDRs that defaulted within 12 months of modifications during the three months ended March 31, 2019 and 2018. The following table presents the Company’s TDR activity for the three months ended March 31, 2019 and 2018: Three Months Ended March 31, (In thousands) 2019 2018 Balance at beginning of the period $ 27,415 $ 41,990 Principal payments (1,413 ) (639 ) TDR status change (1) — — Other reductions (2) (1,155 ) (288 ) Newly identified TDRs 338 2,042 Balance at end of the period $ 25,185 $ 43,105 _________________________________ (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 March 31, 2019 , the Company maintained no foreclosed residential real estate property. Additionally, residential mortgage loans collateralized by real estate property that are in the process of foreclosure as of March 31, 2019 and December 31, 2018 totaled $4.0 million and $3.2 million , respectively.

LOAN LOSS ALLOWANCE

LOAN LOSS ALLOWANCE	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
LOAN LOSS ALLOWANCE	LOAN LOSS ALLOWANCE Activity in the allowance for loan losses for the three months ended March 31, 2019 and 2018 was as follows: At or for the three months ended March 31, 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 1,256 1,676 42 919 3,893 Recoveries on charged-off loans 208 307 15 54 584 Provision/(releases) for loan losses 1,837 3,112 (1,299 ) (268 ) 3,382 Balance at end of period $ 22,521 $ 18,247 $ 9,209 $ 6,235 $ 56,212 At or for the three months ended March 31, 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 106 890 — 940 1,936 Recoveries on charged-off loans 23 44 — 74 141 Provision/(releases) for loan losses 1,081 225 (822 ) 2,668 3,152 Balance at end of period $ 17,841 $ 13,229 $ 8,598 $ 7,609 $ 47,277 At or for the three months ended March 31, 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 180 262 73 171 686 Recoveries on charged-off loans 476 51 5 31 563 Provision/(releases) for loan losses 461 26 60 72 619 Balance at end of period $ 3,910 $ 879 $ 622 $ 415 $ 5,826 At or for the three months ended March 31, 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 740 155 431 529 1,855 Recoveries on charged-off loans 6 29 25 40 100 Provision/(releases) for loan losses 873 244 854 452 2,423 Balance at end of period $ 3,995 $ 1,243 $ 1,046 $ 298 $ 6,582 The following tables present a summary of the allowance for loan losses as of March 31, 2019 and December 31, 2018: At March 31, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 7 52 120 9 188 Collectively evaluated for impairment 22,514 18,195 9,089 6,226 56,024 Total $ 22,521 $ 18,247 $ 9,209 $ 6,235 $ 56,212 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 March 31, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 48 4 36 44 132 Collectively evaluated for impairment 3,862 875 586 371 5,694 Total $ 3,910 $ 879 $ 622 $ 415 $ 5,826 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 March 31, 2019 , the allowance for loan losses related to acquired loans under ASC 310-30 and ASC 310-20 was $5.8 million using the above mentioned criteria. The following tables present the Company’s loans by risk rating at March 31, 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) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Grade: Pass $ 302,258 $ 327,792 $ 2,235,544 $ 2,198,129 $ 2,537,802 $ 2,525,921 Special mention — — 8,946 9,805 8,946 9,805 Substandard — — 58,064 52,985 58,064 52,985 Total $ 302,258 $ 327,792 $ 2,302,554 $ 2,260,919 $ 2,604,812 $ 2,588,711 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total comm. and industrial loans (In thousands) March 31, 2019 December 31, 2018 Grade: Pass $ 1,475,485 $ 1,469,139 Special mention 26,086 14,279 Substandard 38,492 29,176 Doubtful 922 944 Total $ 1,540,985 $ 1,513,538 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Grade: Pass $ 2,298,018 $ 2,314,657 $ 11,228 $ 9,582 $ 2,309,246 $ 2,324,239 Special mention 531 1,619 — — 531 1,619 Substandard 1,857 1,440 — — 1,857 1,440 Total $ 2,300,406 $ 2,317,716 $ 11,228 $ 9,582 $ 2,311,634 $ 2,327,298 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Performing $ 280,651 $ 289,028 $ 625,442 $ 645,537 $ 906,093 $ 934,565 Nonperforming 917 933 1,918 1,699 2,835 2,632 Total $ 281,568 $ 289,961 $ 627,360 $ 647,236 $ 908,928 $ 937,197 Acquired Loans Commercial Real Estate Credit Risk Profile by Creditworthiness Category Construction Real Estate Total commercial real estate (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Grade: Pass $ 24,813 $ 24,519 $ 724,738 $ 743,684 $ 749,551 $ 768,203 Special mention — — 426 9,086 426 9,086 Substandard 702 701 32,648 33,520 33,350 34,221 Total $ 25,515 $ 25,220 $ 757,812 $ 786,290 $ 783,327 $ 811,510 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total comm. and industrial loans (In thousands) March 31, 2019 December 31, 2018 Grade: Pass $ 387,162 $ 439,602 Special mention 12,362 11,374 Substandard 16,830 15,532 Total $ 416,354 $ 466,508 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Grade: Pass $ 228,759 $ 235,173 $ 154 $ 174 $ 228,913 $ 235,347 Special mention 503 144 — — 503 144 Substandard 3,774 3,635 — — 3,774 3,635 Total $ 233,036 $ 238,952 $ 154 $ 174 $ 233,190 $ 239,126 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Performing $ 82,866 $ 85,968 $ 64,196 $ 72,195 $ 147,062 $ 158,163 Nonperforming 894 751 309 451 1,203 1,202 Total $ 83,760 $ 86,719 $ 64,505 $ 72,646 $ 148,265 $ 159,365 The following table summarizes information about total loans rated Special Mention or lower as of March 31, 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. March 31, 2019 December 31, 2018 (In thousands) Business Acquired Loans Total Business Acquired Loans Total Non-Accrual $ 25,177 $ 5,327 $ 30,504 $ 26,478 $ 5,947 $ 32,425 Substandard Accruing 77,037 50,154 127,191 60,698 48,792 109,490 Total Classified 102,214 55,481 157,695 87,176 54,739 141,915 Special Mention 36,149 13,357 49,506 26,333 20,833 47,166 Total Criticized $ 138,363 $ 68,838 $ 207,201 $ 113,509 $ 75,572 $ 189,081

DEPOSITS

DEPOSITS	3 Months Ended
	Mar. 31, 2019
Deposits [Abstract]
DEPOSITS	DEPOSITS A summary of time deposits is as follows: (In thousands) March 31, December 31, Time less than $100,000 $ 712,774 $ 719,689 Time $100,000 through $250,000 2,102,587 2,060,500 Time more than $250,000 529,134 507,528 Total time deposits $ 3,344,495 $ 3,287,717 Included in total deposits are brokered deposits of $1.5 billion and $1.4 billion at March 31, 2019 and December 31, 2018 , respectively. Included in total deposits are reciprocal deposits of $93.2 million and $84.4 million at March 31, 2019 and December 31, 2018 , respectively.

BORROWED FUNDS

BORROWED FUNDS	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
BORROWED FUNDS	BORROWED FUNDS Borrowed funds at March 31, 2019 and December 31, 2018 are summarized, as follows: March 31, 2019 December 31, 2018 Weighted Weighted Average Average (Dollars in thousands) Principal Rate Principal Rate Short-term borrowings: Advances from the FHLB $ 861,349 2.67 % $ 1,118,832 2.58 % Total short-term borrowings: 861,349 2.67 1,118,832 2.58 Long-term borrowings: Advances from the FHLB and other borrowings 258,840 2.29 309,466 2.17 Subordinated borrowings 74,098 7.00 74,054 7.00 Junior subordinated borrowings 15,464 4.50 15,464 4.50 Total long-term borrowings: 348,402 3.39 398,984 3.16 Total $ 1,209,751 2.88 % $ 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 March 31, 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 March 31, 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 March 31, 2019 include no callable advances and amortizing advances totaling $1.7 million . The advances outstanding at December 31, 2018 include no callable advances and amortizing advances totaling $1.7 million . All FHLB borrowings, including the line of credit, are secured by a blanket security agreement on certain qualified collateral, principally all residential first mortgage loans and certain securities. A summary of maturities of FHLB advances as of March 31, 2019 is as follows: March 31, 2019 Weighted Average (In thousands, except rates) Principal Rate Fixed rate advances maturing: 2019 $ 961,424 2.57 % 2020 152,262 2.69 2021 202 2.50 2022 32 2.00 2023 and beyond 6,269 2.51 Total FHLB advances $ 1,120,189 2.58 % The Company did not have variable-rate FHLB advances for the periods ended March 31, 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 $430 thousand and $461 thousand for unamortized debt issuance costs as of March 31, 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 4.50% and 4.50% at March 31, 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.

DERIVATIVE INSTRUMENTS AND HEDG

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES	DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES As of March 31, 2019 , the Company held derivatives with a total notional amount of $3.7 billion . The Company had economic hedges and non-hedging derivatives totaling $3.4 billion and $0.3 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 $2.8 billion , risk participation agreements with dealer banks of $0.3 billion , and $0.3 billion in forward commitment contracts. Forward sale commitments and commitments to lend are included in discontinued operations. See Note 2 - 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 March 31, 2019 . The Company pledged collateral to derivative counterparties in the form of cash totaling $46.7 million and securities with an amortized cost of $12.4 million and a fair value of $12.3 million as of March 31, 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 March 31, 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 9,917 10.7 2.86 % 5.09 % (1,361 ) Interest rate swaps on loans with commercial loan customers 1,405,661 6.6 4.10 % 4.52 % (33,941 ) Reverse interest rate swaps on loans with commercial loan customers 1,405,661 6.6 4.52 % 4.10 % 33,294 Risk participation agreements with dealer banks 265,305 8.1 362 Forward sale commitments (1) 348,011 0.2 (1,252 ) Total economic hedges 3,434,555 (2,898 ) Non-hedging derivatives: Commitments to lend (1) 299,638 0.2 6,318 Total non-hedging derivatives 299,638 6,318 Total $ 3,734,193 $ 3,420 (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 4.04 % 4.53 % (11,953 ) Reverse interest rate swaps on loans with commercial loan customers 1,346,894 6.7 4.53 % 4.04 % 11,443 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 March 31, 2019 , the Company has an interest rate swap with a $9.9 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 $137 thousand as of March 31, 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 2 - 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 2 - 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 March 31, (In thousands) 2019 2018 Economic hedges Interest rate swap on industrial revenue bond: Unrealized (loss)/gain recognized in other non-interest income $ (121 ) $ 311 Interest rate swaps on loans with commercial loan customers: Unrealized (loss)/gain recognized in other non-interest income (21,988 ) 14,669 Reverse interest rate swaps on loans with commercial loan customers: Unrealized gain/(loss) recognized in other non-interest income 21,988 (14,669 ) (Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income (137 ) 237 Risk participation agreements: Unrealized gain recognized in other non-interest income 125 16 Forward commitments: Unrealized (loss) recognized in discontinued operations (518 ) (909 ) Realized gain in discontinued operations (1,715 ) 3,922 Non-hedging derivatives Commitments to lend Unrealized gain recognized in discontinued operations $ 2,391 $ 6,531 Realized gain in discontinued operations 9,432 603 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 March 31, 2019 and December 31, 2018 , respectively. The Company had net asset positions with its commercial banking counterparties totaling $37.4 million and $21.2 million as of March 31, 2019 and December 31, 2018 , respectively. The Company had net liability positions with its financial institution counterparties totaling $35.4 million and $18.8 million as of March 31, 2019 and December 31, 2018 , respectively. The Company had net liability positions with its commercial banking counterparties totaling $4.1 million and $9.7 million as of March 31, 2019 and December 31, 2018 . The collateral posted by the Company that covered liability positions was $46.7 million and $25.4 million as of March 31, 2019 and December 31, 2018 , respectively. The following table presents the assets and liabilities subject to an enforceable master netting arrangement as of March 31, 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 March 31, 2019 Interest Rate Swap Agreements: Institutional counterparties $ 478 $ (11 ) $ 467 $ — $ — $ 467 Commercial counterparties 37,512 (101 ) 37,411 — — 37,411 Total $ 37,990 $ (112 ) $ 37,878 $ — $ — $ 37,878 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 March 31, 2019 Interest Rate Swap Agreements: Institutional counterparties $ (39,746 ) $ 4,339 $ (35,407 ) $ — $ 46,749 $ 11,342 Commercial counterparties (4,116 ) — (4,116 ) — — (4,116 ) Total $ (43,862 ) $ 4,339 $ (39,523 ) $ — $ 46,749 $ 7,226 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	3 Months Ended
	Mar. 31, 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 March 31, 2019 was 3.39% 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 March 31, 2019 lease expiration dates ranged from 1 month to 19 years . The weighted average remaining lease term for operating and finance leases at March 31, 2019 was 10.4 years and 15.6 years , respectively. The following table represents the Consolidated Balance Sheets classification of the Company’s ROU assets and lease liabilities: (In thousands) March 31, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets 75,212 Finance lease right-of-use assets Premises and equipment, net 8,128 Total Lease Right-of-Use Assets 83,340 Lease Liabilities Operating lease liabilities (1) Other liabilities 78,297 Finance lease liabilities Other liabilities 11,228 Total Lease Liabilities 89,525 (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 months ended March 31, 2019 was $3.4 million . Supplemental cash flow information related to leases was as follows: Three Months Ended (In thousands) March 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) 3,498 Operating cash flows from finance leases 159 Financing cash flows from finance leases 98 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 79,589 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 March 31, 2019: (In thousands) Operating Leases Finance Leases 2019 9,803 752 2020 12,118 1,031 2021 10,986 1,031 2022 9,945 1,031 2023 8,070 1,037 Thereafter 42,363 11,296 Total undiscounted lease payments (1) 93,285 16,178 Less amounts representing interest (1) (14,988 ) (4,950 ) Lease liability (1) 78,297 11,228
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 March 31, 2019 was 3.39% 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 March 31, 2019 lease expiration dates ranged from 1 month to 19 years . The weighted average remaining lease term for operating and finance leases at March 31, 2019 was 10.4 years and 15.6 years , respectively. The following table represents the Consolidated Balance Sheets classification of the Company’s ROU assets and lease liabilities: (In thousands) March 31, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets 75,212 Finance lease right-of-use assets Premises and equipment, net 8,128 Total Lease Right-of-Use Assets 83,340 Lease Liabilities Operating lease liabilities (1) Other liabilities 78,297 Finance lease liabilities Other liabilities 11,228 Total Lease Liabilities 89,525 (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 months ended March 31, 2019 was $3.4 million . Supplemental cash flow information related to leases was as follows: Three Months Ended (In thousands) March 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) 3,498 Operating cash flows from finance leases 159 Financing cash flows from finance leases 98 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 79,589 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 March 31, 2019: (In thousands) Operating Leases Finance Leases 2019 9,803 752 2020 12,118 1,031 2021 10,986 1,031 2022 9,945 1,031 2023 8,070 1,037 Thereafter 42,363 11,296 Total undiscounted lease payments (1) 93,285 16,178 Less amounts representing interest (1) (14,988 ) (4,950 ) Lease liability (1) 78,297 11,228

CAPITAL RATIOS AND SHAREHOLDERS

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY	3 Months Ended
	Mar. 31, 2019
Stockholders' Equity Note [Abstract]
CAPITAL RATIOS AND SHAREHOLDERS' EQUITY	CAPITAL RATIOS AND SHAREHOLDERS’ EQUITY The actual and required capital ratios were as follows: March 31, Regulatory December 31, Regulatory Company (consolidated) Total capital to risk weighted assets 13.1 % N/A 13.0 % N/A Common equity tier 1 capital to risk weighted assets 11.5 N/A 11.4 N/A Tier 1 capital to risk weighted assets 11.7 N/A 11.6 N/A Tier 1 capital to average assets 9.0 N/A 9.0 N/A Bank Total capital to risk weighted assets 12.2 % 8.0 % 12.2 % 8.0 % Common equity tier 1 capital to risk weighted assets 11.6 4.5 11.6 4.5 Tier 1 capital to risk weighted assets 11.6 6.0 11.6 6.0 Tier 1 capital to average assets 9.0 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 March 31, 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 March 31, 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) March 31, December 31, Other accumulated comprehensive income, before tax: Net unrealized holding (loss)/gain on AFS securities $ (1,052 ) $ (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 benefit on AFS securities 163 3,814 Net unrealized tax benefit on pension plans 736 736 Accumulated other comprehensive (loss) $ (2,906 ) $ (13,470 ) The following table presents the components of other comprehensive income for the three months ended March 31, 2019 and 2018 : (In thousands) Before Tax Tax Effect Net of Tax Three Months Ended March 31, 2019 Net unrealized holding loss on AFS securities: x Net unrealized gains arising during the period $ 14,221 $ (3,653 ) $ 10,568 Less: reclassification adjustment for gains realized in net income 6 (2 ) 4 Net unrealized holding gain on AFS securities 14,215 (3,651 ) 10,564 Other comprehensive income $ 14,215 $ (3,651 ) $ 10,564 Three Months Ended March 31, 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (19,162 ) $ 4,931 $ (14,231 ) Less: reclassification adjustment for losses realized in net income — — — Net unrealized holding (loss) on AFS securities (19,162 ) 4,931 (14,231 ) Other comprehensive (loss) $ (19,162 ) $ 4,931 $ (14,231 ) 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) (27,541 ) 7,953 (19,588 ) The following table presents the changes in each component of accumulated other comprehensive (loss) income, for the three months ended March 31, 2019 and 2018 : (In thousands) Net unrealized holding loss on AFS Securities Net unrealized holding loss on pension plans Total Three Months Ended March 31, 2019 Balance at Beginning of Period $ (11,453 ) $ (2,017 ) $ (13,470 ) Other comprehensive income before reclassifications 10,568 — 10,568 Less: amounts reclassified from accumulated other comprehensive income (loss) 4 — 4 Total other comprehensive income 10,564 — 10,564 Balance at End of Period $ (889 ) $ (2,017 ) $ (2,906 ) Three Months Ended March 31, 2018 Balance at Beginning of Period $ 6,008 $ (1,847 ) $ 4,161 Other comprehensive (loss) before reclassifications (14,231 ) — (14,231 ) Less: amounts reclassified from accumulated other comprehensive income (loss) — — — Total other comprehensive (loss) (14,231 ) — (14,231 ) 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 $ (13,182 ) $ (2,245 ) $ (15,427 ) The following table presents the amounts reclassified out of each component of accumulated other comprehensive (loss) income for the three months ended March 31, 2019 and 2018 : Affected Line Item in the Three Months Ended March 31, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ 6 $ — Non-interest income (2 ) — Tax expense 4 — Net of tax Total reclassifications for the period $ 4 $ — Net of tax

EARNINGS PER SHARE

EARNINGS PER SHARE	3 Months Ended
	Mar. 31, 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 March 31, (In thousands, except per share data) 2019 2018 Income from continuing operations $ 24,272 $ 25,371 (Loss) from discontinued operations (637 ) (123 ) Net income $ 23,635 $ 25,248 Average number of common shares issued 46,212 46,212 Less: average number of treasury shares 717 869 Less: average number of unvested stock award shares 425 420 Plus: average participating preferred shares 1,043 1,043 Average number of basic shares outstanding 46,113 45,966 Plus: dilutive effect of unvested stock award shares 135 202 Plus: dilutive effect of stock options outstanding 13 32 Average number of diluted shares outstanding 46,261 46,200 Basic earnings per common share: Continuing operations $ 0.52 $ 0.55 Discontinued operations $ (0.01 ) $ — Total $ 0.51 $ 0.55 Diluted earnings per common share: Continuing operations $ 0.52 $ 0.55 Discontinued operations (0.01 ) — Total 0.51 0.55 For the three months ended March 31, 2019 , 291 thousand shares of restricted stock and 13 thousand options were anti-dilutive and therefore excluded from the earnings per share calculations. For the three months ended March 31, 2018 , 219 thousand shares of restricted stock and 36 thousand options were anti-dilutive and therefore excluded from the earnings per share calculations.

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [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 three months ended March 31, 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 — — Stock options exercised — — — — Stock awards vested (65 ) 31.46 — — Forfeited (13 ) 33.86 — — Expired — — — — March 31, 2019 424 $ 32.72 31 $ 11.97 Exercisable options at March 31, 2019 31 $ 11.97 There were no options exercised during the three months ended March 31, 2019. During the three months ended March 31, 2018, proceeds from stock option exercises totaled $76 thousand . During the three months ended March 31, 2019 and March 31, 2018, there were 65 thousand and 87 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 March 31, 2019 and 2018 , respectively. Stock-based compensation expense is recognized over the requisite service period for all awards.t

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	3 Months Ended
	Mar. 31, 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 2 - 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 March 31, 2019 and December 31, 2018 , segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. March 31, 2019 Level 1 Level 2 Level 3 Total (In thousands) Inputs Inputs Inputs Fair Value Trading security $ — $ — $ 11,164 $ 11,164 Securities available for sale: Municipal bonds and obligations — 117,467 — 117,467 Agency collateralized mortgage obligations — 907,914 — 907,914 Agency residential mortgage-backed securities — 166,116 — 166,116 Agency commercial mortgage-backed securities — 59,378 — 59,378 Corporate bonds — 119,267 — 119,267 Trust preferred securities — 8,602 — 8,602 Other bonds and obligations — 8,024 — 8,024 Marketable equity securities 58,557 564 — 59,121 Loans held for sale (1) — 141,594 — 141,594 Derivative assets (1) — 41,787 6,318 48,105 Capitalized servicing rights (1) — — 11,351 11,351 Derivative liabilities (1) 1,252 43,434 — 44,686 (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 March 31, 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 March 31, 2019 Aggregate Aggregate Less Aggregate (In thousands) Fair Value Unpaid Principal Unpaid Principal Loans held for sale - continuing operations $ 4,773 $ 4,670 $ 103 Loans held for sale - discontinued operations 136,821 132,463 4,358 Total loans held for sale $ 141,594 $ 137,133 $ 4,461 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 March 31, 2019 , were gains of $60 thousand from continuing operations and $1.2 million from discontinued operations. The changes in fair value of loans held for sale for the three months ended March 31, 2018, were losses of $20 thousand from continuing operations and $2.4 million from discontinued operations. During the three months ended March 31, 2019, originations of loans held for sale from continuing operations totaled $11.5 million and sales of loans originated for sale from continuing operations totaled $9.0 million . During the three months ended March 31, 2018, originations of loans held for sale from continuing operations totaled $12.4 million and sales of loans originated for sale from continuing operations totaled $10.8 million . Loans held for sale includes $136.8 million and $94.1 million of discontinued operations as March 31, 2019 and December 31, 2018, respectively. 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 March 31, 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 2 - 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 2 - 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. These capitalized servicing rights are included in discontinued operarations on the consolidated balance sheet. Capitalized servicing rights held at fair value are included in discontinued operations. See Note 2 - 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 months ended March 31, 2019 and 2018 . Assets (Liabilities) Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended March 31, 2019 December 31, 2018 $ 11,212 $ 3,927 $ — $ 11,485 Unrealized gain/(loss), net recognized in other non-interest income 126 — — — Unrealized gain/(loss), net recognized in discontinued operations — 11,221 — (1,142 ) Paydown of trading security (174 ) — — — Transfers to held for sale loans — (8,830 ) — — Additions to servicing rights — — — 1,008 March 31, 2019 $ 11,164 $ 6,318 $ — $ 11,351 Unrealized gains relating to instruments still held at March 31, 2019 $ 1,248 $ 6,318 $ — — Three Months Ended March 31, 2018 December 31, 2017 $ 12,277 $ 5,259 $ 19 $ 3,834 Unrealized (loss) gain, net recognized in other non-interest income (317 ) — — — Unrealized gain/(loss), net recognized in discontinued operations — 12,213 (19 ) 465 Paydown of trading security (165 ) — — — Transfers to held for sale loans — (10,941 ) — — Additions to servicing rights $ — $ — $ — $ 1,406 March 31, 2018 $ 11,795 $ 6,531 $ — $ 5,705 Unrealized gains relating to instruments still held at March 31, 2018 $ 1,205 $ 6,531 $ — $ — (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) March 31, 2019 Valuation Techniques Unobservable Inputs Value Assets (Liabilities) Trading security $ 11,164 Discounted Cash Flow Discount Rate 2.77 % Commitments to lend (1) 6,318 Historical Trend Closing Ratio 82.18 % Pricing Model Origination Costs, per loan $ 3,137 Forward commitments (1) — Historical Trend Closing Ratio 82.18 % Pricing Model Origination Costs, per loan $ 3,137 Capitalized servicing rights (1) 11,351 Discounted cash flow Constant Prepayment Rate (CPR) 11.11 % Discount Rate 10.00 % Total $ 28,833 (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 Forward commitments (1) — 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. March 31, 2019 December 31, 2018 Fair Value Measurement Date as of March 31, 2019 Level 3 Level 3 Level 3 (In thousands) Inputs Inputs Inputs Assets Impaired loans $ 5,129 $ 4,892 March 2019 Capitalized servicing rights 11,894 11,891 March 2019 Total $ 17,023 $ 16,783 Quantitative information about the significant unobservable inputs within Level 3 non-recurring assets is as follows: Fair Value (In thousands) March 31, 2019 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets Impaired Loans $ 5,129 Fair Value of Collateral Discounted Cash Flow - Loss Severity 52.38% to 0.67% (4.74%) Appraised Value $0.3 to $826 ($331.7) Capitalized servicing rights 11,894 Discounted Cash Flow Constant Prepayment Rate (CPR) 7.76% to 11.77% (10.55%) Discount Rate 10.00% to 13.76% (11.94%) Total $ 17,023 (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 March 31, 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 2 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. March 31, 2019 Carrying Fair (In thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 167,619 $ 167,619 $ 167,619 $ — $ — Trading security 11,164 11,164 — — 11,164 Marketable equity securities 59,121 59,121 58,557 564 — Securities available for sale 1,386,768 1,386,768 — 1,386,768 — Securities held to maturity 369,331 375,980 — 357,707 18,273 FHLB bank stock and restricted securities 54,624 N/A N/A N/A N/A Net loans 8,885,457 9,067,915 — — 9,067,915 Loans held for sale (1) 141,594 141,594 — 141,594 — Accrued interest receivable 37,901 37,901 — 37,901 — Cash surrender value of bank-owned life insurance policies 191,768 191,768 — 191,768 — Derivative assets (1) 48,105 48,105 — 41,787 6,318 Financial Liabilities Total deposits $ 9,166,415 $ 9,153,374 $ — $ 9,153,374 $ — Short-term debt 861,349 861,335 — 861,335 — Long-term Federal Home Loan Bank advances 258,840 258,583 — 258,583 — Subordinated borrowings 89,562 92,897 — 92,897 — Derivative liabilities (1) 44,686 44,686 1,252 43,434 — (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	3 Months Ended
	Mar. 31, 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 months ended March 31, 2019 and 2018, respectively. Three Months Ended March 31, (In thousands) 2019 2018 Net interest income from continuing operations $ 85,459 $ 84,757 Provision for loan losses 4,001 5,575 Net interest income from continuing operations after provision for loan losses $ 81,458 $ 79,182

PENDING ACQUISITION

PENDING ACQUISITION	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
PENDING ACQUISITION	PENDING ACQUISITION On December 11, 2018, the Company entered into an agreement and plan of merger with SI Financial Group, Inc. ("SI Financial"). Under the agreement, SI Financial will merge with and into the Company in a transaction to be accounted for a business combination. Immediately following the merger, SI Financial's wholly-owned subsidiary, Savings Institute Bank and Trust Company, will merge with and into Berkshire Bank. Headquartered in Willimantic, Conn., SI Financial had $1.6 billion in assets as of December 31, 2018 and operates 23 banking offices providing a range of banking services in Eastern Connecticut and Rhode Island. If the merger is completed, each outstanding share of SI Financial common stock will be converted into the right to receive 0.48 shares of the Company's common stock. The transaction is subject to closing conditions, including the receipt of regulatory approvals and approval by the shareholders of SI Financial. The merger is currently expected to be completed in the second quarter of 2019. If the merger is not consummated under specified circumstances, SI Financial has agreed to pay the Company a termination fee of $7.4 million . This agreement and plan of merger had no significant effect on the Company’s financial statements for the periods presented. Expenses related to the proposed merger of $1.6 million are included in the financial statement line item Acquisition, Restructuring, and Other Expenses of the Consolidated Statements of Income for the three months ended March 31, 2019.

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	3 Months Ended
	Mar. 31, 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 10 - 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. 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 10 - 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. 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 transition guidance. 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. 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 negative adjustment to retained earnings. 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.

DISCONTINUED OPERATIONS (Tables

DISCONTINUED OPERATIONS (Tables)	3 Months Ended
	Mar. 31, 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 months ended March 31, 2019 and March 31, 2018: Three Months Ended March 31, (in thousands) 2019 2018 Interest income 1,044 1,094 Interest expense 584 381 Net interest income 460 713 Non-interest income 8,813 10,628 Total net revenue 9,273 11,341 Non-interest expense 10,127 11,503 Loss from discontinued operations before income taxes (854 ) (162 ) Income tax (benefit) (217 ) (39 ) Net loss from discontinued operations (637 ) (123 ) The following is a summary of the assets and liabilities of the discontinued operations of FCLS at March 31, 2019 and December 31, 2018: (in thousands) March 31, 2019 December 31, 2018 Assets Loans held for sale, at fair value 136,821 94,050 Premises and equipment, net 1,858 1,867 Other assets 26,399 18,342 Total assets 165,078 114,259 Liabilities Other liabilities 15,505 9,597 Total liabilities 15,505 9,597

SECURITIES AVAILABLE FOR SALE_2

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES (Tables)	3 Months Ended
	Mar. 31, 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 March 31, 2019 Securities available for sale Municipal bonds and obligations $ 113,521 $ 4,088 $ (142 ) $ 117,467 Agency collateralized mortgage obligations 913,263 1,964 (7,313 ) 907,914 Agency mortgage-backed securities 168,914 78 (2,876 ) 166,116 Agency commercial mortgage-backed securities 61,914 — (2,536 ) 59,378 Corporate bonds 119,893 434 (1,060 ) 119,267 Trust preferred securities 8,319 283 — 8,602 Other bonds and obligations 8,016 30 (22 ) 8,024 Total securities available for sale 1,393,840 6,877 (13,949 ) 1,386,768 Securities held to maturity Municipal bonds and obligations 260,968 7,149 (136 ) 267,981 Agency collateralized mortgage obligations 71,226 1,445 (346 ) 72,325 Agency mortgage-backed securities 7,074 — (174 ) 6,900 Agency commercial mortgage-backed securities 10,401 — (199 ) 10,202 Tax advantaged economic development bonds 19,363 95 (1,185 ) 18,273 Other bonds and obligations 299 — — 299 Total securities held to maturity 369,331 8,689 (2,040 ) 375,980 Marketable equity securities 55,409 5,217 (1,505 ) 59,121 Total $ 1,818,580 $ 20,783 $ (17,494 ) $ 1,821,869 (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 March 31, 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 $ 7,747 $ 7,759 $ 2,614 $ 2,614 Over 1 year to 5 years 26,687 26,837 14,799 14,865 Over 5 years to 10 years 82,660 83,351 13,494 13,577 Over 10 years 132,655 135,413 249,723 255,497 Total bonds and obligations 249,749 253,360 280,630 286,553 Mortgage-backed securities 1,144,091 1,133,408 88,701 89,427 Total $ 1,393,840 $ 1,386,768 $ 369,331 $ 375,980
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 March 31, 2019 Securities available for sale Municipal bonds and obligations $ 7 $ 323 $ 135 $ 8,971 $ 142 $ 9,294 Agency collateralized mortgage obligations 121 67,340 7,192 612,951 7,313 680,291 Agency mortgage-backed securities 27 10,306 2,849 146,416 2,876 156,722 Agency commercial mortgage-backed securities 30 4,002 2,506 55,375 2,536 59,377 Corporate bonds 1,040 76,670 20 980 1,060 77,650 Other bonds and obligations — — 22 3,039 22 3,039 Total securities available for sale 1,225 158,641 12,724 827,732 13,949 986,373 Securities held to maturity Municipal bonds and obligations — — 136 13,308 136 13,308 Agency collateralized mortgage obligations — — 346 10,858 346 10,858 Agency mortgage-backed securities — — 174 6,900 174 6,900 Agency commercial mortgage-backed securities — — 199 10,202 199 10,202 Tax advantaged economic development bonds — — 1,185 6,884 1,185 6,884 Total securities held to maturity — — 2,040 48,152 2,040 48,152 Total $ 1,225 $ 158,641 $ 14,764 $ 875,884 $ 15,989 $ 1,034,525 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)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Schedule of Loans	The following is a summary of total loans: March 31, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ 302,258 $ 25,515 $ 327,773 $ 327,792 $ 25,220 $ 353,012 Other commercial real estate 2,302,554 757,812 3,060,366 2,260,919 786,290 3,047,209 Total commercial real estate 2,604,812 783,327 3,388,139 2,588,711 811,510 3,400,221 Commercial and industrial loans: 1,540,985 416,354 1,957,339 1,513,538 466,508 1,980,046 Total commercial loans 4,145,797 1,199,681 5,345,478 4,102,249 1,278,018 5,380,267 Residential mortgages: 1-4 family 2,300,406 233,036 2,533,442 2,317,716 238,952 2,556,668 Construction 11,228 154 11,382 9,582 174 9,756 Total residential mortgages 2,311,634 233,190 2,544,824 2,327,298 239,126 2,566,424 Consumer loans: Home equity 281,568 83,760 365,328 289,961 86,719 376,680 Auto and other 627,360 64,505 691,865 647,236 72,646 719,882 Total consumer loans 908,928 148,265 1,057,193 937,197 159,365 1,096,562 Total loans $ 7,366,359 $ 1,581,136 $ 8,947,495 $ 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 March 31, (In thousands) 2019 2018 Balance at beginning of period $ 2,840 $ 11,561 Accretion (1,320 ) (3,433 ) Net reclassifications from (to) nonaccretable difference 665 2,533 Payments received, net (55 ) (188 ) Reclassification to TDR 9 — Disposals — (81 ) Balance at end of period $ 2,139 $ 10,392
Summary of Past Due Loans	The following is a summary of past due loans at March 31, 2019 and December 31, 2018: Business Activities Loans (In thousands) 30-59 Days 60-89 Days 90 Total Past Current Total Loans Past Due > March 31, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ 302,258 $ 302,258 $ — Other commercial real estate 670 749 16,535 17,954 2,284,600 2,302,554 119 Total 670 749 16,535 17,954 2,586,858 2,604,812 119 Commercial and industrial loans: Total 2,458 540 4,586 7,584 1,533,401 1,540,985 56 Residential mortgages: 1-4 family 1,214 531 1,857 3,602 2,296,804 2,300,406 461 Construction — — — — 11,228 11,228 — Total 1,214 531 1,857 3,602 2,308,032 2,311,634 461 Consumer loans: Home equity 161 4 917 1,082 280,486 281,568 — Auto and other 2,310 582 1,962 4,854 622,506 627,360 44 Total 2,471 586 2,879 5,936 902,992 908,928 44 Total $ 6,813 $ 2,406 $ 25,857 $ 35,076 $ 7,331,283 $ 7,366,359 $ 680 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 > March 31, 2019 Commercial real estate: Construction $ — $ — $ — $ — $ — $ 25,515 $ — Other commercial real estate 3,935 460 4,110 8,505 10,972 757,812 2,013 Total 3,935 460 4,110 8,505 10,972 783,327 2,013 Commercial and industrial loans: Total 507 33 1,227 1,767 29,394 416,354 144 Residential mortgages: 1-4 family 610 442 1,020 2,072 4,890 233,036 75 Construction — — — — — 154 — Total 610 442 1,020 2,072 4,890 233,190 75 Consumer loans: Home equity 287 — 1,052 1,339 546 83,760 158 Auto and other 193 66 405 664 294 64,505 97 Total 480 66 1,457 2,003 840 148,265 255 Total $ 5,532 $ 1,001 $ 7,814 $ 14,347 $ 46,096 $ 1,581,136 $ 2,487 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 March 31, 2019 and December 31, 2018: March 31, 2019 December 31, 2018 (In thousands) Business Acquired Total Business Acquired Total Commercial real estate: Construction $ — $ — $ — $ — $ — $ — Other commercial real estate 16,416 2,097 18,513 17,840 2,531 20,371 Total 16,416 2,097 18,513 17,840 2,531 20,371 Commercial and industrial loans: Total 4,530 1,083 5,613 4,632 1,371 6,003 Residential mortgages: 1-4 family 1,396 945 2,341 1,374 843 2,217 Construction — — — — — — Total 1,396 945 2,341 1,374 843 2,217 Consumer loans: Home equity 917 894 1,811 933 751 1,684 Auto and other 1,918 308 2,226 1,699 451 2,150 Total 2,835 1,202 4,037 2,632 1,202 3,834 Total non-accrual loans $ 25,177 $ 5,327 $ 30,504 $ 26,478 $ 5,947 $ 32,425
Schedule of Loans Evaluated for Impairment	Loans evaluated for impairment as of March 31, 2019 and December 31, 2018 were as follows: Business Activities Loans (In thousands) Commercial Commercial and Residential Consumer Total March 31, 2019 Loans receivable: Balance at end of period Individually evaluated for impairment $ 21,036 $ 2,989 $ 2,061 $ 335 $ 26,421 Collectively evaluated for impairment 2,583,776 1,537,996 2,309,573 908,593 7,339,938 Total $ 2,604,812 $ 1,540,985 $ 2,311,634 $ 908,928 $ 7,366,359 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 March 31, 2019 Loans receivable: Balance at end of Period Individually evaluated for impairment $ 3,538 $ 686 $ 358 $ 775 $ 5,357 Purchased credit-impaired loans 10,972 29,394 4,890 840 46,096 Collectively evaluated for impairment 768,817 386,274 227,942 146,650 1,529,683 Total $ 783,327 $ 416,354 $ 233,190 $ 148,265 $ 1,581,136 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 March 31, 2019 and December 31, 2018: Business Activities Loans March 31, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 20,446 $ 29,916 $ — Commercial and industrial loans 1,279 2,268 — Residential mortgages - 1-4 family 440 438 — Consumer - home equity 228 241 — Consumer - other — — — With an allowance recorded: Other commercial real estate loans $ 540 $ 548 $ 7 Commercial and industrial loans 1,724 1,718 52 Residential mortgages - 1-4 family 1,637 1,759 120 Consumer - home equity 96 103 8 Consumer - other 12 12 1 Total Commercial real estate $ 20,986 $ 30,464 $ 7 Commercial and industrial loans 3,003 3,986 52 Residential mortgages 2,077 2,197 120 Consumer 336 356 9 Total impaired loans $ 26,402 $ 37,003 $ 188 (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 March 31, 2019 (In thousands) Recorded Investment (1) Unpaid Principal Related Allowance With no related allowance: Other commercial real estate loans $ 2,531 $ 5,694 $ — Commercial and industrial loans 494 612 — Residential mortgages - 1-4 family 270 323 — Consumer - home equity 532 1,326 — Consumer - other — — — With an allowance recorded: Other commercial real estate loans $ 910 $ 916 $ 48 Commercial and industrial loans 195 207 4 Residential mortgages - 1-4 family 91 115 36 Consumer - home equity 202 195 37 Consumer - other 42 39 7 Total x Commercial real estate $ 3,441 $ 6,610 $ 48 Commercial and industrial loans 689 819 4 Residential mortgages 361 438 36 Consumer 776 1,560 44 Total impaired loans $ 5,267 $ 9,427 $ 132 (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 March 31, 2019 and 2018: Business Activities Loans Three Months Ended Three Months Ended (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 21,221 $ 64 $ 20,272 $ 91 Commercial and industrial loans 1,389 26 2,625 62 Residential mortgages - 1-4 family 441 6 807 14 Consumer - home equity 228 1 1,730 2 Consumer - other — — — — With an allowance recorded: Other commercial real estate loans $ 616 $ 6 $ 13,198 $ 169 Commercial and industrial loans 1,757 40 3,933 64 Residential mortgages - 1-4 family 1,645 19 1,484 17 Consumer - home equity 97 1 46 1 Consumer - other 12 — 17 — Total Commercial real estate $ 21,837 $ 70 $ 33,470 $ 260 Commercial and industrial loans 3,146 66 6,558 126 Residential mortgages 2,086 25 2,291 31 Consumer loans 337 2 1,793 3 Total impaired loans $ 27,406 $ 163 $ 44,112 $ 420 Acquired Loans Three Months Ended March 31, 2019 Three Months Ended March 31, 2018 (In thousands) Average Cash Basis Average Cash Basis With no related allowance: Other commercial real estate loans $ 2,511 $ 37 $ 2,348 $ 46 Commercial and industrial loans 512 12 425 9 Residential mortgages - 1-4 family 270 2 700 4 Consumer - home equity 601 1 953 — Consumer - other — — 19 1 With an allowance recorded: Other commercial real estate loans $ 917 $ 16 $ 2,876 $ 37 Commercial and industrial loans 221 9 61 2 Residential mortgages - 1-4 family 92 2 1,520 1 Consumer - home equity 203 3 324 4 Consumer - other 43 — — — Total Commercial real estate $ 3,428 $ 53 $ 5,224 $ 83 Commercial and industrial loans 733 21 486 11 Residential mortgages 362 4 2,220 5 Consumer loans 847 4 1,296 5 Total impaired loans $ 5,370 $ 82 $ 9,226 $ 104
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 months ended March 31, 2019 and March 31, 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 months ended March 31, 2019 and 2018 were attributable to interest rate concessions, principal concessions, maturity date extensions, modified payment terms, reamortization, and accelerated maturity. Three Months Ended March 31, 2019 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate 2 $ 145 $ 145 Commercial and industrial 1 193 193 Residential - 1-4 Family — — — Total 3 $ 338 $ 338 Three Months Ended March 31, 2018 (Dollars in thousands) Number of Pre-Modification Post-Modification Troubled Debt Restructurings Commercial real estate — $ — $ — Commercial and industrial 4 1,995 1,924 Residential - 1-4 Family 1 118 118 Total 5 $ 2,113 $ 2,042 There were no TDRs that defaulted within 12 months of modifications during the three months ended March 31, 2019 and 2018.
Schedule of TDR Activity	The following table presents the Company’s TDR activity for the three months ended March 31, 2019 and 2018: Three Months Ended March 31, (In thousands) 2019 2018 Balance at beginning of the period $ 27,415 $ 41,990 Principal payments (1,413 ) (639 ) TDR status change (1) — — Other reductions (2) (1,155 ) (288 ) Newly identified TDRs 338 2,042 Balance at end of the period $ 25,185 $ 43,105 _________________________________ (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)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Schedule of Activity in the Allowance for Loan Losses	Activity in the allowance for loan losses for the three months ended March 31, 2019 and 2018 was as follows: At or for the three months ended March 31, 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 1,256 1,676 42 919 3,893 Recoveries on charged-off loans 208 307 15 54 584 Provision/(releases) for loan losses 1,837 3,112 (1,299 ) (268 ) 3,382 Balance at end of period $ 22,521 $ 18,247 $ 9,209 $ 6,235 $ 56,212 At or for the three months ended March 31, 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 106 890 — 940 1,936 Recoveries on charged-off loans 23 44 — 74 141 Provision/(releases) for loan losses 1,081 225 (822 ) 2,668 3,152 Balance at end of period $ 17,841 $ 13,229 $ 8,598 $ 7,609 $ 47,277 At or for the three months ended March 31, 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 180 262 73 171 686 Recoveries on charged-off loans 476 51 5 31 563 Provision/(releases) for loan losses 461 26 60 72 619 Balance at end of period $ 3,910 $ 879 $ 622 $ 415 $ 5,826 At or for the three months ended March 31, 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 740 155 431 529 1,855 Recoveries on charged-off loans 6 29 25 40 100 Provision/(releases) for loan losses 873 244 854 452 2,423 Balance at end of period $ 3,995 $ 1,243 $ 1,046 $ 298 $ 6,582 The following tables present a summary of the allowance for loan losses as of March 31, 2019 and December 31, 2018: At March 31, 2019 Business Activities Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 7 52 120 9 188 Collectively evaluated for impairment 22,514 18,195 9,089 6,226 56,024 Total $ 22,521 $ 18,247 $ 9,209 $ 6,235 $ 56,212 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 March 31, 2019 Acquired Loans (In thousands) Commercial real estate Commercial and industrial loans Residential mortgages Consumer Total Individually evaluated for impairment 48 4 36 44 132 Collectively evaluated for impairment 3,862 875 586 371 5,694 Total $ 3,910 $ 879 $ 622 $ 415 $ 5,826 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 March 31, 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) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Grade: Pass $ 302,258 $ 327,792 $ 2,235,544 $ 2,198,129 $ 2,537,802 $ 2,525,921 Special mention — — 8,946 9,805 8,946 9,805 Substandard — — 58,064 52,985 58,064 52,985 Total $ 302,258 $ 327,792 $ 2,302,554 $ 2,260,919 $ 2,604,812 $ 2,588,711 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total comm. and industrial loans (In thousands) March 31, 2019 December 31, 2018 Grade: Pass $ 1,475,485 $ 1,469,139 Special mention 26,086 14,279 Substandard 38,492 29,176 Doubtful 922 944 Total $ 1,540,985 $ 1,513,538 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Grade: Pass $ 2,298,018 $ 2,314,657 $ 11,228 $ 9,582 $ 2,309,246 $ 2,324,239 Special mention 531 1,619 — — 531 1,619 Substandard 1,857 1,440 — — 1,857 1,440 Total $ 2,300,406 $ 2,317,716 $ 11,228 $ 9,582 $ 2,311,634 $ 2,327,298 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Performing $ 280,651 $ 289,028 $ 625,442 $ 645,537 $ 906,093 $ 934,565 Nonperforming 917 933 1,918 1,699 2,835 2,632 Total $ 281,568 $ 289,961 $ 627,360 $ 647,236 $ 908,928 $ 937,197 Acquired Loans Commercial Real Estate Credit Risk Profile by Creditworthiness Category Construction Real Estate Total commercial real estate (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Grade: Pass $ 24,813 $ 24,519 $ 724,738 $ 743,684 $ 749,551 $ 768,203 Special mention — — 426 9,086 426 9,086 Substandard 702 701 32,648 33,520 33,350 34,221 Total $ 25,515 $ 25,220 $ 757,812 $ 786,290 $ 783,327 $ 811,510 Commercial and Industrial Loans Credit Risk Profile by Creditworthiness Category Total comm. and industrial loans (In thousands) March 31, 2019 December 31, 2018 Grade: Pass $ 387,162 $ 439,602 Special mention 12,362 11,374 Substandard 16,830 15,532 Total $ 416,354 $ 466,508 Residential Mortgages Credit Risk Profile by Internally Assigned Grade 1-4 family Construction Total residential mortgages (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Grade: Pass $ 228,759 $ 235,173 $ 154 $ 174 $ 228,913 $ 235,347 Special mention 503 144 — — 503 144 Substandard 3,774 3,635 — — 3,774 3,635 Total $ 233,036 $ 238,952 $ 154 $ 174 $ 233,190 $ 239,126 Consumer Loans Credit Risk Profile Based on Payment Activity Home equity Auto and other Total consumer loans (In thousands) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Performing $ 82,866 $ 85,968 $ 64,196 $ 72,195 $ 147,062 $ 158,163 Nonperforming 894 751 309 451 1,203 1,202 Total $ 83,760 $ 86,719 $ 64,505 $ 72,646 $ 148,265 $ 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 March 31, 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. March 31, 2019 December 31, 2018 (In thousands) Business Acquired Loans Total Business Acquired Loans Total Non-Accrual $ 25,177 $ 5,327 $ 30,504 $ 26,478 $ 5,947 $ 32,425 Substandard Accruing 77,037 50,154 127,191 60,698 48,792 109,490 Total Classified 102,214 55,481 157,695 87,176 54,739 141,915 Special Mention 36,149 13,357 49,506 26,333 20,833 47,166 Total Criticized $ 138,363 $ 68,838 $ 207,201 $ 113,509 $ 75,572 $ 189,081

DEPOSITS (Tables)

DEPOSITS (Tables)	3 Months Ended
	Mar. 31, 2019
Deposits [Abstract]
Summary of Time Deposits	A summary of time deposits is as follows: (In thousands) March 31, December 31, Time less than $100,000 $ 712,774 $ 719,689 Time $100,000 through $250,000 2,102,587 2,060,500 Time more than $250,000 529,134 507,528 Total time deposits $ 3,344,495 $ 3,287,717

BORROWED FUNDS (Tables)

BORROWED FUNDS (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Schedule of Borrowed Funds	Borrowed funds at March 31, 2019 and December 31, 2018 are summarized, as follows: March 31, 2019 December 31, 2018 Weighted Weighted Average Average (Dollars in thousands) Principal Rate Principal Rate Short-term borrowings: Advances from the FHLB $ 861,349 2.67 % $ 1,118,832 2.58 % Total short-term borrowings: 861,349 2.67 1,118,832 2.58 Long-term borrowings: Advances from the FHLB and other borrowings 258,840 2.29 309,466 2.17 Subordinated borrowings 74,098 7.00 74,054 7.00 Junior subordinated borrowings 15,464 4.50 15,464 4.50 Total long-term borrowings: 348,402 3.39 398,984 3.16 Total $ 1,209,751 2.88 % $ 1,517,816 2.73 %
Summary of Maturities of FHLBB Advances	A summary of maturities of FHLB advances as of March 31, 2019 is as follows: March 31, 2019 Weighted Average (In thousands, except rates) Principal Rate Fixed rate advances maturing: 2019 $ 961,424 2.57 % 2020 152,262 2.69 2021 202 2.50 2022 32 2.00 2023 and beyond 6,269 2.51 Total FHLB advances $ 1,120,189 2.58 %

DERIVATIVE INSTRUMENTS AND HE_2

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables)	3 Months Ended
	Mar. 31, 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 March 31, 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 9,917 10.7 2.86 % 5.09 % (1,361 ) Interest rate swaps on loans with commercial loan customers 1,405,661 6.6 4.10 % 4.52 % (33,941 ) Reverse interest rate swaps on loans with commercial loan customers 1,405,661 6.6 4.52 % 4.10 % 33,294 Risk participation agreements with dealer banks 265,305 8.1 362 Forward sale commitments (1) 348,011 0.2 (1,252 ) Total economic hedges 3,434,555 (2,898 ) Non-hedging derivatives: Commitments to lend (1) 299,638 0.2 6,318 Total non-hedging derivatives 299,638 6,318 Total $ 3,734,193 $ 3,420 (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 4.04 % 4.53 % (11,953 ) Reverse interest rate swaps on loans with commercial loan customers 1,346,894 6.7 4.53 % 4.04 % 11,443 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 March 31, (In thousands) 2019 2018 Economic hedges Interest rate swap on industrial revenue bond: Unrealized (loss)/gain recognized in other non-interest income $ (121 ) $ 311 Interest rate swaps on loans with commercial loan customers: Unrealized (loss)/gain recognized in other non-interest income (21,988 ) 14,669 Reverse interest rate swaps on loans with commercial loan customers: Unrealized gain/(loss) recognized in other non-interest income 21,988 (14,669 ) (Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income (137 ) 237 Risk participation agreements: Unrealized gain recognized in other non-interest income 125 16 Forward commitments: Unrealized (loss) recognized in discontinued operations (518 ) (909 ) Realized gain in discontinued operations (1,715 ) 3,922 Non-hedging derivatives Commitments to lend Unrealized gain recognized in discontinued operations $ 2,391 $ 6,531 Realized gain in discontinued operations 9,432 603
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 March 31, 2019 Interest Rate Swap Agreements: Institutional counterparties $ 478 $ (11 ) $ 467 $ — $ — $ 467 Commercial counterparties 37,512 (101 ) 37,411 — — 37,411 Total $ 37,990 $ (112 ) $ 37,878 $ — $ — $ 37,878
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 March 31, 2019 Interest Rate Swap Agreements: Institutional counterparties $ (39,746 ) $ 4,339 $ (35,407 ) $ — $ 46,749 $ 11,342 Commercial counterparties (4,116 ) — (4,116 ) — — (4,116 ) Total $ (43,862 ) $ 4,339 $ (39,523 ) $ — $ 46,749 $ 7,226 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 (Tables)

LEASES (Tables)	3 Months Ended
	Mar. 31, 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) March 31, 2019 Lease Right-of-Use Assets Classification Operating lease right-of-use assets (1) Other assets 75,212 Finance lease right-of-use assets Premises and equipment, net 8,128 Total Lease Right-of-Use Assets 83,340 Lease Liabilities Operating lease liabilities (1) Other liabilities 78,297 Finance lease liabilities Other liabilities 11,228 Total Lease Liabilities 89,525 (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 (In thousands) March 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases (1) 3,498 Operating cash flows from finance leases 159 Financing cash flows from finance leases 98 Right-of-use assets obtained in exchange for lease obligations: Operating leases (1) 79,589 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 March 31, 2019: (In thousands) Operating Leases Finance Leases 2019 9,803 752 2020 12,118 1,031 2021 10,986 1,031 2022 9,945 1,031 2023 8,070 1,037 Thereafter 42,363 11,296 Total undiscounted lease payments (1) 93,285 16,178 Less amounts representing interest (1) (14,988 ) (4,950 ) Lease liability (1) 78,297 11,228
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 March 31, 2019: (In thousands) Operating Leases Finance Leases 2019 9,803 752 2020 12,118 1,031 2021 10,986 1,031 2022 9,945 1,031 2023 8,070 1,037 Thereafter 42,363 11,296 Total undiscounted lease payments (1) 93,285 16,178 Less amounts representing interest (1) (14,988 ) (4,950 ) Lease liability (1) 78,297 11,228

CAPITAL RATIOS AND SHAREHOLDE_2

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY (Tables)	3 Months Ended
	Mar. 31, 2019
Stockholders' Equity Note [Abstract]
Schedule of Actual and Required Capital Ratios	The actual and required capital ratios were as follows: March 31, Regulatory December 31, Regulatory Company (consolidated) Total capital to risk weighted assets 13.1 % N/A 13.0 % N/A Common equity tier 1 capital to risk weighted assets 11.5 N/A 11.4 N/A Tier 1 capital to risk weighted assets 11.7 N/A 11.6 N/A Tier 1 capital to average assets 9.0 N/A 9.0 N/A Bank Total capital to risk weighted assets 12.2 % 8.0 % 12.2 % 8.0 % Common equity tier 1 capital to risk weighted assets 11.6 4.5 11.6 4.5 Tier 1 capital to risk weighted assets 11.6 6.0 11.6 6.0 Tier 1 capital to average assets 9.0 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) March 31, December 31, Other accumulated comprehensive income, before tax: Net unrealized holding (loss)/gain on AFS securities $ (1,052 ) $ (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 benefit on AFS securities 163 3,814 Net unrealized tax benefit on pension plans 736 736 Accumulated other comprehensive (loss) $ (2,906 ) $ (13,470 )
Schedule of Components of Other Comprehensive Income	The following table presents the components of other comprehensive income for the three months ended March 31, 2019 and 2018 : (In thousands) Before Tax Tax Effect Net of Tax Three Months Ended March 31, 2019 Net unrealized holding loss on AFS securities: x Net unrealized gains arising during the period $ 14,221 $ (3,653 ) $ 10,568 Less: reclassification adjustment for gains realized in net income 6 (2 ) 4 Net unrealized holding gain on AFS securities 14,215 (3,651 ) 10,564 Other comprehensive income $ 14,215 $ (3,651 ) $ 10,564 Three Months Ended March 31, 2018 Net unrealized holding (loss) on AFS securities: Net unrealized (losses) arising during the period $ (19,162 ) $ 4,931 $ (14,231 ) Less: reclassification adjustment for losses realized in net income — — — Net unrealized holding (loss) on AFS securities (19,162 ) 4,931 (14,231 ) Other comprehensive (loss) $ (19,162 ) $ 4,931 $ (14,231 ) 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) (27,541 ) 7,953 (19,588 )
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 months ended March 31, 2019 and 2018 : (In thousands) Net unrealized holding loss on AFS Securities Net unrealized holding loss on pension plans Total Three Months Ended March 31, 2019 Balance at Beginning of Period $ (11,453 ) $ (2,017 ) $ (13,470 ) Other comprehensive income before reclassifications 10,568 — 10,568 Less: amounts reclassified from accumulated other comprehensive income (loss) 4 — 4 Total other comprehensive income 10,564 — 10,564 Balance at End of Period $ (889 ) $ (2,017 ) $ (2,906 ) Three Months Ended March 31, 2018 Balance at Beginning of Period $ 6,008 $ (1,847 ) $ 4,161 Other comprehensive (loss) before reclassifications (14,231 ) — (14,231 ) Less: amounts reclassified from accumulated other comprehensive income (loss) — — — Total other comprehensive (loss) (14,231 ) — (14,231 ) 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 $ (13,182 ) $ (2,245 ) $ (15,427 )
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 months ended March 31, 2019 and 2018 : Affected Line Item in the Three Months Ended March 31, Statement where Net Income (In thousands) 2019 2018 is Presented Realized gains on AFS securities: $ 6 $ — Non-interest income (2 ) — Tax expense 4 — Net of tax Total reclassifications for the period $ 4 $ — Net of tax

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	3 Months Ended
	Mar. 31, 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 March 31, (In thousands, except per share data) 2019 2018 Income from continuing operations $ 24,272 $ 25,371 (Loss) from discontinued operations (637 ) (123 ) Net income $ 23,635 $ 25,248 Average number of common shares issued 46,212 46,212 Less: average number of treasury shares 717 869 Less: average number of unvested stock award shares 425 420 Plus: average participating preferred shares 1,043 1,043 Average number of basic shares outstanding 46,113 45,966 Plus: dilutive effect of unvested stock award shares 135 202 Plus: dilutive effect of stock options outstanding 13 32 Average number of diluted shares outstanding 46,261 46,200 Basic earnings per common share: Continuing operations $ 0.52 $ 0.55 Discontinued operations $ (0.01 ) $ — Total $ 0.51 $ 0.55 Diluted earnings per common share: Continuing operations $ 0.52 $ 0.55 Discontinued operations (0.01 ) — Total 0.51 0.55

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS (Tables)	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [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 three months ended March 31, 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 — — Stock options exercised — — — — Stock awards vested (65 ) 31.46 — — Forfeited (13 ) 33.86 — — Expired — — — — March 31, 2019 424 $ 32.72 31 $ 11.97 Exercisable options at March 31, 2019 31 $ 11.97

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	3 Months Ended
	Mar. 31, 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 March 31, 2019 and December 31, 2018 , segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. March 31, 2019 Level 1 Level 2 Level 3 Total (In thousands) Inputs Inputs Inputs Fair Value Trading security $ — $ — $ 11,164 $ 11,164 Securities available for sale: Municipal bonds and obligations — 117,467 — 117,467 Agency collateralized mortgage obligations — 907,914 — 907,914 Agency residential mortgage-backed securities — 166,116 — 166,116 Agency commercial mortgage-backed securities — 59,378 — 59,378 Corporate bonds — 119,267 — 119,267 Trust preferred securities — 8,602 — 8,602 Other bonds and obligations — 8,024 — 8,024 Marketable equity securities 58,557 564 — 59,121 Loans held for sale (1) — 141,594 — 141,594 Derivative assets (1) — 41,787 6,318 48,105 Capitalized servicing rights (1) — — 11,351 11,351 Derivative liabilities (1) 1,252 43,434 — 44,686 (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 March 31, 2019 Aggregate Aggregate Less Aggregate (In thousands) Fair Value Unpaid Principal Unpaid Principal Loans held for sale - continuing operations $ 4,773 $ 4,670 $ 103 Loans held for sale - discontinued operations 136,821 132,463 4,358 Total loans held for sale $ 141,594 $ 137,133 $ 4,461 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 months ended March 31, 2019 and 2018 . Assets (Liabilities) Capitalized Trading Commitments Forward Servicing (In thousands) Security to Lend (1) Commitments (1) Rights (1) Three Months Ended March 31, 2019 December 31, 2018 $ 11,212 $ 3,927 $ — $ 11,485 Unrealized gain/(loss), net recognized in other non-interest income 126 — — — Unrealized gain/(loss), net recognized in discontinued operations — 11,221 — (1,142 ) Paydown of trading security (174 ) — — — Transfers to held for sale loans — (8,830 ) — — Additions to servicing rights — — — 1,008 March 31, 2019 $ 11,164 $ 6,318 $ — $ 11,351 Unrealized gains relating to instruments still held at March 31, 2019 $ 1,248 $ 6,318 $ — — Three Months Ended March 31, 2018 December 31, 2017 $ 12,277 $ 5,259 $ 19 $ 3,834 Unrealized (loss) gain, net recognized in other non-interest income (317 ) — — — Unrealized gain/(loss), net recognized in discontinued operations — 12,213 (19 ) 465 Paydown of trading security (165 ) — — — Transfers to held for sale loans — (10,941 ) — — Additions to servicing rights $ — $ — $ — $ 1,406 March 31, 2018 $ 11,795 $ 6,531 $ — $ 5,705 Unrealized gains relating to instruments still held at March 31, 2018 $ 1,205 $ 6,531 $ — $ — (1) Classified as assets from discontinued operations on the consolidated balance sheets.
Schedule of Quantitative Information About the Significant Unobservable Inputs Within Level 3	The following is a summary of applicable non-recurring fair value measurements. There are no liabilities measured at fair value on a non-recurring basis. March 31, 2019 December 31, 2018 Fair Value Measurement Date as of March 31, 2019 Level 3 Level 3 Level 3 (In thousands) Inputs Inputs Inputs Assets Impaired loans $ 5,129 $ 4,892 March 2019 Capitalized servicing rights 11,894 11,891 March 2019 Total $ 17,023 $ 16,783 Quantitative information about the significant unobservable inputs within Level 3 recurring assets and liabilities is as follows: Fair Value Significant Unobservable Input (In thousands) March 31, 2019 Valuation Techniques Unobservable Inputs Value Assets (Liabilities) Trading security $ 11,164 Discounted Cash Flow Discount Rate 2.77 % Commitments to lend (1) 6,318 Historical Trend Closing Ratio 82.18 % Pricing Model Origination Costs, per loan $ 3,137 Forward commitments (1) — Historical Trend Closing Ratio 82.18 % Pricing Model Origination Costs, per loan $ 3,137 Capitalized servicing rights (1) 11,351 Discounted cash flow Constant Prepayment Rate (CPR) 11.11 % Discount Rate 10.00 % Total $ 28,833 (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 Forward commitments (1) — Historical Trend Closing Ratio 82.36 % Pricing Model Origination Costs, per loan $ 3,063 Capitalized servicing rights (1) 11,485 Discounted Cash Flow Constant Prepayment Rate (CPR) 9.30 % Discount Rate 10.00 % Total $ 26,624 (1) Classified as assets from discontinued operations on the consolidated balance sheets.
Summary of Applicable Non-Recurring Fair Value Measurements	Quantitative information about the significant unobservable inputs within Level 3 non-recurring assets is as follows: Fair Value (In thousands) March 31, 2019 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets Impaired Loans $ 5,129 Fair Value of Collateral Discounted Cash Flow - Loss Severity 52.38% to 0.67% (4.74%) Appraised Value $0.3 to $826 ($331.7) Capitalized servicing rights 11,894 Discounted Cash Flow Constant Prepayment Rate (CPR) 7.76% to 11.77% (10.55%) Discount Rate 10.00% to 13.76% (11.94%) Total $ 17,023 (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 2 - Discontinued Operations for more information on assets and liabilities classified as discontinued operations. March 31, 2019 Carrying Fair (In thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 167,619 $ 167,619 $ 167,619 $ — $ — Trading security 11,164 11,164 — — 11,164 Marketable equity securities 59,121 59,121 58,557 564 — Securities available for sale 1,386,768 1,386,768 — 1,386,768 — Securities held to maturity 369,331 375,980 — 357,707 18,273 FHLB bank stock and restricted securities 54,624 N/A N/A N/A N/A Net loans 8,885,457 9,067,915 — — 9,067,915 Loans held for sale (1) 141,594 141,594 — 141,594 — Accrued interest receivable 37,901 37,901 — 37,901 — Cash surrender value of bank-owned life insurance policies 191,768 191,768 — 191,768 — Derivative assets (1) 48,105 48,105 — 41,787 6,318 Financial Liabilities Total deposits $ 9,166,415 $ 9,153,374 $ — $ 9,153,374 $ — Short-term debt 861,349 861,335 — 861,335 — Long-term Federal Home Loan Bank advances 258,840 258,583 — 258,583 — Subordinated borrowings 89,562 92,897 — 92,897 — Derivative liabilities (1) 44,686 44,686 1,252 43,434 — (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)	3 Months Ended
	Mar. 31, 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 months ended March 31, 2019 and 2018, respectively. Three Months Ended March 31, (In thousands) 2019 2018 Net interest income from continuing operations $ 85,459 $ 84,757 Provision for loan losses 4,001 5,575 Net interest income from continuing operations after provision for loan losses $ 81,458 $ 79,182

BASIS OF PRESENTATION - Additio

BASIS OF PRESENTATION - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease, right-of-use asset	$ 83,340
Lease, liability	$ 89,525
ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease, right-of-use asset		$ 79,600
Lease, liability		$ 82,800

DISCONTINUED OPERATIONS - Narra

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

DISCONTINUED OPERATIONS - Asset

DISCONTINUED OPERATIONS - Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets
Total assets	$ 165,078	$ 114,259
Liabilities
Total liabilities	15,505	9,597
First Choice Loan Services, Inc. [Member] | Discontinued Operations, Held-for-sale [Member]
Assets
Loans held for sale, at fair value	136,821	94,050
Premises and equipment, net	1,858	1,867
Other assets	26,399	18,342
Total assets	165,078	114,259
Liabilities
Other liabilities	15,505	9,597
Total liabilities	$ 15,505	$ 9,597

DISCONTINUED OPERATIONS - Resul

DISCONTINUED OPERATIONS - Results of Discontinued Operation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations before income taxes	$ (854)	$ (162)
Income tax (benefit)	(217)	(39)
Net (loss) from discontinued operations	(637)	(123)
First Choice Loan Services, Inc. [Member] | Discontinued Operations, Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest income	1,044	1,094
Interest expense	584	381
Net interest income	460	713
Non-interest income	8,813	10,628
Total net revenue	9,273	11,341
Non-interest expense	10,127	11,503
Loss from discontinued operations before income taxes	(854)	(162)
Income tax (benefit)	(217)	(39)
Net (loss) from discontinued operations	$ (637)	$ (123)

TRADING SECURITY (Details)

TRADING SECURITY (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Amortized cost	$ 9,900	$ 10,100
Trading security, at fair value	$ 11,164	$ 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	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Securities available for sale
Amortized Cost	$ 1,393,840	$ 1,421,273
Gross Unrealized Gains	6,877	4,065
Gross Unrealized Losses	(13,949)	(25,691)
Fair Value	1,386,768	1,399,647
Securities held to maturity
Amortized Cost	369,331	373,763
Gross Unrealized Gains	8,689	4,124
Gross Unrealized Losses	(2,040)	(6,663)
Fair Value	375,980	371,224
Marketable equity securities, amortized cost	55,409	55,471
Marketable equity securities, gross unrealized gains	5,217	4,370
Marketable equity securities, gross unrealized losses	(1,505)	(3,203)
Marketable equity securities, fair value	59,121	56,638
Total, amortized cost basis	1,818,580	1,850,507
Total, gross unrealized gain	20,783	12,559
Total, gross unrealized loss	(17,494)	(35,557)
Total, fair value	1,821,869	1,827,509
Municipal bonds and obligations
Securities available for sale
Amortized Cost	113,521	109,648
Gross Unrealized Gains	4,088	2,272
Gross Unrealized Losses	(142)	(713)
Fair Value	117,467	111,207
Securities held to maturity
Amortized Cost	260,968	264,524
Gross Unrealized Gains	7,149	3,569
Gross Unrealized Losses	(136)	(3,601)
Fair Value	267,981	264,492
Agency collateralized mortgage obligations
Securities available for sale
Amortized Cost	913,263	944,946
Gross Unrealized Gains	1,964	1,130
Gross Unrealized Losses	(7,313)	(15,192)
Fair Value	907,914	930,884
Securities held to maturity
Amortized Cost	71,226	71,637
Gross Unrealized Gains	1,445	533
Gross Unrealized Losses	(346)	(778)
Fair Value	72,325	71,392
Agency mortgage-backed securities
Securities available for sale
Amortized Cost	168,914	175,406
Gross Unrealized Gains	78	36
Gross Unrealized Losses	(2,876)	(5,121)
Fair Value	166,116	170,321
Securities held to maturity
Amortized Cost	7,074	7,219
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(174)	(297)
Fair Value	6,900	6,922
Agency commercial mortgage-backed securities
Securities available for sale
Amortized Cost	61,914	62,200
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(2,536)	(3,275)
Fair Value	59,378	58,925
Securities held to maturity
Amortized Cost	10,401	10,417
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(199)	(289)
Fair Value	10,202	10,128
Corporate bonds
Securities available for sale
Amortized Cost	119,893	112,404
Gross Unrealized Gains	434	342
Gross Unrealized Losses	(1,060)	(1,256)
Fair Value	119,267	111,490
Trust preferred securities
Securities available for sale
Amortized Cost	8,319	8,314
Gross Unrealized Gains	283	251
Gross Unrealized Losses	0	(99)
Fair Value	8,602	8,466
Other bonds and obligations
Securities available for sale
Amortized Cost	8,016	8,355
Gross Unrealized Gains	30	34
Gross Unrealized Losses	(22)	(35)
Fair Value	8,024	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	19,363	19,718
Gross Unrealized Gains	95	22
Gross Unrealized Losses	(1,185)	(1,698)
Fair Value	$ 18,273	$ 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	Mar. 31, 2019	Dec. 31, 2018
Available for sale, Amortized Cost
Within 1 year	$ 7,747
Over 1 year to 5 years	26,687
Over 5 years to 10 years	82,660
Over 10 years	132,655
Total bonds and obligations	249,749
Mortgage-backed securities	1,144,091
Amortized Cost	1,393,840	$ 1,421,273
Available for sale, Fair Value
Within 1 year	7,759
Over 1 year to 5 years	26,837
Over 5 years to 10 years	83,351
Over 10 years	135,413
Total bonds and obligations	253,360
Mortgage-backed securities	1,133,408
Fair Value	1,386,768	1,399,647
Held to maturity, Amortized Cost
Within 1 year	2,614
Over 1 year to 5 years	14,799
Over 5 years to 10 years	13,494
Over 10 years	249,723
Total bonds and obligations	280,630
Mortgage-backed securities	88,701
Amortized Cost	369,331	373,763
Held to maturity, Fair Value
Within 1 year	2,614
Over 1 year to 5 years	14,865
Over 5 years to 10 years	13,577
Over 10 years	255,497
Total bonds and obligations	286,553
Mortgage-backed securities	89,427
Fair Value	$ 375,980	$ 371,224

SECURITIES AVAILABLE FOR SALE_5

SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND MARKETABLE EQUITY SECURITIES - Narrative (Details)	3 Months Ended
	Mar. 31, 2019USD ($)security	Mar. 31, 2018USD ($)
Investment Holdings [Line Items]
Purchases of securities available for sale | $	$ 15,180,000	$ 116,423,000
Proceeds from sale of available-for-sale securities | $	2,587,000	$ 0
Debt securities, available-for-sale, realized gain | $	6,000
Debt securities, available-for-sale, realized loss | $	$ 0
Municipal bonds and obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	7
Available for sale securities portfolio, number of securities	311
Available for sale securities, continuous unrealized loss position, aggregate losses	1.50%
Held-to-maturity, securities in unrealized loss positions	13
Held-to-maturity securities portfolio, number of securities	220
Held to maturity securities, continuous unrealized loss position, aggregate losses	1.00%
Agency collateralized mortgage obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	198
Available for sale securities portfolio, number of securities	268
Available for sale securities, continuous unrealized loss position, aggregate losses	1.10%
Held-to-maturity, securities in unrealized loss positions	1
Held-to-maturity securities portfolio, number of securities	9
Held to maturity securities, continuous unrealized loss position, aggregate losses	2.50%
Mortgage-backed securities
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	78
Available for sale securities portfolio, number of securities	136
Available for sale securities, continuous unrealized loss position, aggregate losses	2.40%
Held-to-maturity, securities in unrealized loss positions	2
Held-to-maturity securities portfolio, number of securities	2
Held to maturity securities, continuous unrealized loss position, aggregate losses	2.10%
Corporate bonds
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	14
Available for sale securities portfolio, number of securities	24
Available for sale securities, continuous unrealized loss position, aggregate losses	1.40%
Other bonds and obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	6
Available for sale securities portfolio, number of securities	12
Available for sale securities, continuous unrealized loss position, aggregate losses	0.70%
Tax advantaged economic development bonds
Investment Holdings [Line Items]
Held-to-maturity, securities in unrealized loss positions	1
Held-to-maturity securities portfolio, number of securities	5
Held to maturity securities, continuous unrealized loss position, aggregate losses	14.70%

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	Mar. 31, 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	$ 1,225	$ 1,576
Available for sale securities, over twelve months, gross unrealized losses	12,724	24,115
Available for sale securities, continuous unrealized loss position, accumulated loss	13,949	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	158,641	130,805
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	827,732	992,767
Available for sale securities, continuous unrealized loss position, fair value	986,373	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	2,040	6,471
Held to maturity securities, accumulated unrecognized holding loss	2,040	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	48,152	170,459
Held to maturity securities, accumulated unrecognized holding loss, fair value	48,152	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	1,225	1,768
Held to maturity and available for sale securities continuous unrealized loss position, less than twelve months, fair value	158,641	156,479
Held to maturity and available for sale securities continuous unrealized loss position, over twelve months, aggregate losses	14,764	30,586
Held to maturity and available for sale securities continuous unrealized loss position, over twelve months, fair value	875,884	1,163,226
Held to maturity and available for sale securities continuous unrealized loss position, aggregate losses	15,989	32,354
Held to maturity and available for sale securities continuous unrealized loss position, fair value	1,034,525	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	7	55
Available for sale securities, over twelve months, gross unrealized losses	135	658
Available for sale securities, continuous unrealized loss position, accumulated loss	142	713
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value	323	3,186
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	8,971	11,787
Available for sale securities, continuous unrealized loss position, fair value	9,294	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	0	127
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	136	3,474
Held to maturity securities, accumulated unrecognized holding loss	136	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	0	17,596
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	13,308	103,759
Held to maturity securities, accumulated unrecognized holding loss, fair value	13,308	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	121	76
Available for sale securities, over twelve months, gross unrealized losses	7,192	15,116
Available for sale securities, continuous unrealized loss position, accumulated loss	7,313	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	67,340	39,114
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	612,951	755,528
Available for sale securities, continuous unrealized loss position, fair value	680,291	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	346	778
Held to maturity securities, accumulated unrecognized holding loss	346	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	10,858	43,138
Held to maturity securities, accumulated unrecognized holding loss, fair value	10,858	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	27	53
Available for sale securities, over twelve months, gross unrealized losses	2,849	5,068
Available for sale securities, continuous unrealized loss position, accumulated loss	2,876	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	10,306	5,500
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	146,416	162,439
Available for sale securities, continuous unrealized loss position, fair value	156,722	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	174	297
Held to maturity securities, accumulated unrecognized holding loss	174	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	6,900	6,922
Held to maturity securities, accumulated unrecognized holding loss, fair value	6,900	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	30	44
Available for sale securities, over twelve months, gross unrealized losses	2,506	3,231
Available for sale securities, continuous unrealized loss position, accumulated loss	2,536	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	4,002	1,503
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	55,375	57,422
Available for sale securities, continuous unrealized loss position, fair value	59,377	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	0
Held-to-maturity securities, continuous unrealized loss position, over twelve months, gross unrealized losses	199	289
Held to maturity securities, accumulated unrecognized holding loss	199	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	0
Held to maturity securities, accumulated unrecognized holding loss, over twelve months, fair value	10,202	10,128
Held to maturity securities, accumulated unrecognized holding loss, fair value	10,202	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	1,040	1,249
Available for sale securities, over twelve months, gross unrealized losses	20	7
Available for sale securities, continuous unrealized loss position, accumulated loss	1,060	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	76,670	74,434
Available for sale securities, continuous unrealized loss position, over twelve months, fair value	980	2,561
Available for sale securities, continuous unrealized loss position, fair value	77,650	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		99
Available for sale securities, over twelve months, gross unrealized losses		0
Available for sale securities, continuous unrealized loss position, accumulated loss		99
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Available for sale securities, continuous unrealized loss position, less than twelve months, fair value		7,068
Available for sale securities, continuous unrealized loss position, over twelve months, fair value		0
Available for sale securities, continuous unrealized loss position, fair value		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	22	35
Available for sale securities, continuous unrealized loss position, accumulated loss	22	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	3,039	3,030
Available for sale securities, continuous unrealized loss position, fair value	3,039	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	1,185	1,633
Held to maturity securities, accumulated unrecognized holding loss	1,185	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	6,884	6,512
Held to maturity securities, accumulated unrecognized holding loss, fair value	$ 6,884	$ 14,590

LOANS - Summary of Total Loans

LOANS - Summary of Total Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 8,947,495	$ 9,043,253
Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	7,366,359	7,366,744
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,581,136	1,676,509
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	5,345,478	5,380,267
Commercial loans | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	4,145,797	4,102,249
Commercial loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,199,681	1,278,018
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	3,388,139	3,400,221
Commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,604,812	2,588,711
Commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	783,327	811,510
Commercial real estate | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	327,773	353,012
Commercial real estate | Construction | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	302,258	327,792
Commercial real estate | Construction | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	25,515	25,220
Commercial real estate | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	3,060,366	3,047,209
Commercial real estate | Other commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,302,554	2,260,919
Commercial real estate | Other commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	757,812	786,290
Commercial and industrial loans | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,540,985	1,513,538
Commercial and industrial loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	416,354	466,508
Commercial and industrial loans | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,957,339	1,980,046
Commercial and industrial loans | Other commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,540,985	1,513,538
Commercial and industrial loans | Other commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	416,354	466,508
Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,544,824	2,566,424
Residential mortgages | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,311,634	2,327,298
Residential mortgages | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	233,190	239,126
Residential mortgages | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	11,382	9,756
Residential mortgages | Construction | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	11,228	9,582
Residential mortgages | Construction | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	154	174
Residential mortgages | 1-4 family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,533,442	2,556,668
Residential mortgages | 1-4 family | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,300,406	2,317,716
Residential mortgages | 1-4 family | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	233,036	238,952
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,057,193	1,096,562
Consumer | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	908,928	937,197
Consumer | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	148,265	159,365
Consumer | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	365,328	376,680
Consumer | Home equity | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	281,568	289,961
Consumer | Home equity | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	83,760	86,719
Consumer | Auto and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	691,865	719,882
Consumer | Auto and other | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	627,360	647,236
Consumer | Auto and other | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 64,505	$ 72,646

LOANS - Narrative (Details)

LOANS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 8,947,495	$ 9,043,253
Borrower's sustained repayment performance period	6 months
Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,544,824	2,566,424
Residential mortgages | Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Process of foreclosure	4,000	3,200
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,581,136	1,676,509
Acquired credit impaired	46,096	47,288
Certain loans acquired in transfer not accounted for as debt securities, note balance, net	120,900	124,000
Financing receivable not considered impaired at time of acquisition	1,500,000	1,600,000
Acquired Loans | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	233,190	239,126
Acquired credit impaired	$ 4,890	$ 4,888

LOANS - Accretable Yield Activi

LOANS - Accretable Yield Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 2,840	$ 11,561
Accretion	(1,320)	(3,433)
Net reclassifications from (to) nonaccretable difference	665	2,533
Payments received, net	(55)	(188)
Reclassification to TDR	9	0
Disposals	0	(81)
Balance at end of period	$ 2,139	$ 10,392

LOANS - Summary of Past Due Loa

LOANS - Summary of Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	$ 8,947,495	$ 9,043,253
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	3,388,139	3,400,221
Commercial real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	327,773	353,012
Commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	3,060,366	3,047,209
Commercial and industrial loans | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,957,339	1,980,046
Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	2,544,824	2,566,424
Residential mortgages | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	11,382	9,756
Residential mortgages | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	2,533,442	2,556,668
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,057,193	1,096,562
Consumer | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	365,328	376,680
Consumer | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	691,865	719,882
Business Activities Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	35,076	42,440
Current	7,331,283	7,324,304
Total loans	7,366,359	7,366,744
Past Due 90 days and Accruing	680	1,063
Business Activities Loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,813	11,399
Business Activities Loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,406	3,500
Business Activities Loans | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	25,857	27,541
Business Activities Loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	17,954	20,022
Current	2,586,858	2,568,689
Total loans	2,604,812	2,588,711
Past Due 90 days and Accruing	119	993
Business Activities Loans | Commercial real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	302,258	327,792
Total loans	302,258	327,792
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	17,954	20,022
Current	2,284,600	2,240,897
Total loans	2,302,554	2,260,919
Past Due 90 days and Accruing	119	993
Business Activities Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	670	913
Business Activities Loans | Commercial real estate | 30-59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial real estate | 30-59 Days Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	670	913
Business Activities Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	749	276
Business Activities Loans | Commercial real estate | 60-89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial real estate | 60-89 Days Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	749	276
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	16,535	18,833
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial real estate | 90 Days or Greater Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	16,535	18,833
Business Activities Loans | Commercial and industrial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,584	10,305
Current	1,533,401	1,503,233
Total loans	1,540,985	1,513,538
Past Due 90 days and Accruing	56	4
Business Activities Loans | Commercial and industrial loans | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,540,985	1,513,538
Business Activities Loans | Commercial and industrial loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,458	4,694
Business Activities Loans | Commercial and industrial loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	540	975
Business Activities Loans | Commercial and industrial loans | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,586	4,636
Business Activities Loans | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,602	4,690
Current	2,308,032	2,322,608
Total loans	2,311,634	2,327,298
Past Due 90 days and Accruing	461	66
Business Activities Loans | Residential mortgages | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	11,228	9,582
Total loans	11,228	9,582
Past Due 90 days and Accruing	0	0
Business Activities Loans | Residential mortgages | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,602	4,690
Current	2,296,804	2,313,026
Total loans	2,300,406	2,317,716
Past Due 90 days and Accruing	461	66
Business Activities Loans | Residential mortgages | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,214	1,631
Business Activities Loans | Residential mortgages | 30-59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Residential mortgages | 30-59 Days Past Due | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,214	1,631
Business Activities Loans | Residential mortgages | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	531	1,619
Business Activities Loans | Residential mortgages | 60-89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Residential mortgages | 60-89 Days Past Due | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	531	1,619
Business Activities Loans | Residential mortgages | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,857	1,440
Business Activities Loans | Residential mortgages | 90 Days or Greater Past Due | Construction
Financing Receivable, Recorded Investment, 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, Recorded Investment, Past Due [Line Items]
Total Past Due	1,857	1,440
Business Activities Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,936	7,423
Current	902,992	929,774
Total loans	908,928	937,197
Past Due 90 days and Accruing	44	0
Business Activities Loans | Consumer | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,082	1,566
Current	280,486	288,395
Total loans	281,568	289,961
Past Due 90 days and Accruing	0	0
Business Activities Loans | Consumer | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,854	5,857
Current	622,506	641,379
Total loans	627,360	647,236
Past Due 90 days and Accruing	44	0
Business Activities Loans | Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,471	4,161
Business Activities Loans | Consumer | 30-59 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	161	618
Business Activities Loans | Consumer | 30-59 Days Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,310	3,543
Business Activities Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	586	630
Business Activities Loans | Consumer | 60-89 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4	15
Business Activities Loans | Consumer | 60-89 Days Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	582	615
Business Activities Loans | Consumer | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,879	2,632
Business Activities Loans | Consumer | 90 Days or Greater Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	917	933
Business Activities Loans | Consumer | 90 Days or Greater Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,962	1,699
Acquired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	14,347	14,227
Acquired Credit Impaired	46,096	47,288
Total loans	1,581,136	1,676,509
Past Due 90 days and Accruing	2,487	1,967
Acquired Loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,532	4,685
Acquired Loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,001	1,628
Acquired Loans | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,814	7,914
Acquired Loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,505	7,913
Acquired Credit Impaired	10,972	11,994
Total loans	783,327	811,510
Past Due 90 days and Accruing	2,013	1,652
Acquired Loans | Commercial real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Credit Impaired	0	0
Total loans	25,515	25,220
Past Due 90 days and Accruing	0	0
Acquired Loans | Commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,505	7,913
Acquired Credit Impaired	10,972	11,994
Total loans	757,812	786,290
Past Due 90 days and Accruing	2,013	1,652
Acquired Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,935	2,603
Acquired Loans | Commercial real estate | 30-59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate | 30-59 Days Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,935	2,603
Acquired Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	460	1,127
Acquired Loans | Commercial real estate | 60-89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate | 60-89 Days Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	460	1,127
Acquired Loans | Commercial real estate | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,110	4,183
Acquired Loans | Commercial real estate | 90 Days or Greater Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate | 90 Days or Greater Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,110	4,183
Acquired Loans | Commercial and industrial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,767	1,879
Acquired Credit Impaired	29,394	29,539
Total loans	416,354	466,508
Past Due 90 days and Accruing	144	144
Acquired Loans | Commercial and industrial loans | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	416,354	466,508
Acquired Loans | Commercial and industrial loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	507	217
Acquired Loans | Commercial and industrial loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	33	147
Acquired Loans | Commercial and industrial loans | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,227	1,515
Acquired Loans | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,072	2,444
Acquired Credit Impaired	4,890	4,888
Total loans	233,190	239,126
Past Due 90 days and Accruing	75	75
Acquired Loans | Residential mortgages | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Credit Impaired	0	0
Total loans	154	174
Past Due 90 days and Accruing	0	0
Acquired Loans | Residential mortgages | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,072	2,444
Acquired Credit Impaired	4,890	4,888
Total loans	233,036	238,952
Past Due 90 days and Accruing	75	75
Acquired Loans | Residential mortgages | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	610	1,382
Acquired Loans | Residential mortgages | 30-59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Residential mortgages | 30-59 Days Past Due | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	610	1,382
Acquired Loans | Residential mortgages | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	442	144
Acquired Loans | Residential mortgages | 60-89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Residential mortgages | 60-89 Days Past Due | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	442	144
Acquired Loans | Residential mortgages | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,020	918
Acquired Loans | Residential mortgages | 90 Days or Greater Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Residential mortgages | 90 Days or Greater Past Due | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,020	918
Acquired Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,003	1,991
Acquired Credit Impaired	840	867
Total loans	148,265	159,365
Past Due 90 days and Accruing	255	96
Acquired Loans | Consumer | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,339	1,189
Acquired Credit Impaired	546	553
Total loans	83,760	86,719
Past Due 90 days and Accruing	158	0
Acquired Loans | Consumer | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	664	802
Acquired Credit Impaired	294	314
Total loans	64,505	72,646
Past Due 90 days and Accruing	97	96
Acquired Loans | Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	480	483
Acquired Loans | Consumer | 30-59 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	287	290
Acquired Loans | Consumer | 30-59 Days Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	193	193
Acquired Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	66	210
Acquired Loans | Consumer | 60-89 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	148
Acquired Loans | Consumer | 60-89 Days Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	66	62
Acquired Loans | Consumer | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,457	1,298
Acquired Loans | Consumer | 90 Days or Greater Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,052	751
Acquired Loans | Consumer | 90 Days or Greater Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 405	$ 547

LOANS - Summary Information Per

LOANS - Summary Information Pertaining to Non-accrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Non-accrual loans
Non-accrual loans	$ 30,504	$ 32,425
Business Activities Loans
Non-accrual loans
Non-accrual loans	25,177	26,478
Acquired Loans
Non-accrual loans
Non-accrual loans	5,327	5,947
Commercial real estate
Non-accrual loans
Non-accrual loans	18,513	20,371
Commercial real estate | Business Activities Loans
Non-accrual loans
Non-accrual loans	16,416	17,840
Commercial real estate | Acquired Loans
Non-accrual loans
Non-accrual loans	2,097	2,531
Commercial real estate | Construction
Non-accrual loans
Non-accrual loans	0	0
Commercial real estate | Construction | Business Activities Loans
Non-accrual loans
Non-accrual loans	0	0
Commercial real estate | Construction | Acquired Loans
Non-accrual loans
Non-accrual loans	0	0
Commercial real estate | Other commercial real estate
Non-accrual loans
Non-accrual loans	18,513	20,371
Commercial real estate | Other commercial real estate | Business Activities Loans
Non-accrual loans
Non-accrual loans	16,416	17,840
Commercial real estate | Other commercial real estate | Acquired Loans
Non-accrual loans
Non-accrual loans	2,097	2,531
Commercial and industrial loans
Non-accrual loans
Non-accrual loans	5,613	6,003
Commercial and industrial loans | Business Activities Loans
Non-accrual loans
Non-accrual loans	4,530	4,632
Commercial and industrial loans | Acquired Loans
Non-accrual loans
Non-accrual loans	1,083	1,371
Residential mortgages
Non-accrual loans
Non-accrual loans	2,341	2,217
Residential mortgages | Business Activities Loans
Non-accrual loans
Non-accrual loans	1,396	1,374
Residential mortgages | Acquired Loans
Non-accrual loans
Non-accrual loans	945	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	2,341	2,217
Residential mortgages | 1-4 family | Business Activities Loans
Non-accrual loans
Non-accrual loans	1,396	1,374
Residential mortgages | 1-4 family | Acquired Loans
Non-accrual loans
Non-accrual loans	945	843
Consumer
Non-accrual loans
Non-accrual loans	4,037	3,834
Consumer | Business Activities Loans
Non-accrual loans
Non-accrual loans	2,835	2,632
Consumer | Acquired Loans
Non-accrual loans
Non-accrual loans	1,202	1,202
Consumer | Home equity
Non-accrual loans
Non-accrual loans	1,811	1,684
Consumer | Home equity | Business Activities Loans
Non-accrual loans
Non-accrual loans	917	933
Consumer | Home equity | Acquired Loans
Non-accrual loans
Non-accrual loans	894	751
Consumer | Auto and other
Non-accrual loans
Non-accrual loans	2,226	2,150
Consumer | Auto and other | Business Activities Loans
Non-accrual loans
Non-accrual loans	1,918	1,699
Consumer | Auto and other | Acquired Loans
Non-accrual loans
Non-accrual loans	$ 308	$ 451

LOANS - Loans Evaluated for Imp

LOANS - Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Loans receivable: balance at end of period
Total loans	$ 8,947,495	$ 9,043,253
Commercial real estate
Loans receivable: balance at end of period
Total loans	3,388,139	3,400,221
Residential mortgages
Loans receivable: balance at end of period
Total loans	2,544,824	2,566,424
Consumer
Loans receivable: balance at end of period
Total loans	1,057,193	1,096,562
Business Activities Loans
Loans receivable: balance at end of period
Individually evaluated for impairment	26,421	28,601
Collectively evaluated for impairment	7,339,938	7,338,143
Total loans	7,366,359	7,366,744
Business Activities Loans | Commercial real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	21,036	23,345
Collectively evaluated for impairment	2,583,776	2,565,366
Total loans	2,604,812	2,588,711
Business Activities Loans | Commercial and industrial loans
Loans receivable: balance at end of period
Individually evaluated for impairment	2,989	2,825
Collectively evaluated for impairment	1,537,996	1,510,713
Total loans	1,540,985	1,513,538
Business Activities Loans | Residential mortgages
Loans receivable: balance at end of period
Individually evaluated for impairment	2,061	2,089
Collectively evaluated for impairment	2,309,573	2,325,209
Total loans	2,311,634	2,327,298
Business Activities Loans | Consumer
Loans receivable: balance at end of period
Individually evaluated for impairment	335	342
Collectively evaluated for impairment	908,593	936,855
Total loans	908,928	937,197
Acquired Loans
Loans receivable: balance at end of period
Individually evaluated for impairment	5,357	5,751
Purchased credit-impaired loans	46,096	47,288
Collectively evaluated for impairment	1,529,683	1,623,470
Total loans	1,581,136	1,676,509
Acquired Loans | Commercial real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	3,538	3,980
Purchased credit-impaired loans	10,972	11,994
Collectively evaluated for impairment	768,817	795,536
Total loans	783,327	811,510
Acquired Loans | Commercial and industrial loans
Loans receivable: balance at end of period
Individually evaluated for impairment	686	763
Purchased credit-impaired loans	29,394	29,539
Collectively evaluated for impairment	386,274	436,206
Total loans	416,354	466,508
Acquired Loans | Residential mortgages
Loans receivable: balance at end of period
Individually evaluated for impairment	358	362
Purchased credit-impaired loans	4,890	4,888
Collectively evaluated for impairment	227,942	233,876
Total loans	233,190	239,126
Acquired Loans | Consumer
Loans receivable: balance at end of period
Individually evaluated for impairment	775	646
Purchased credit-impaired loans	840	867
Collectively evaluated for impairment	146,650	157,852
Total loans	$ 148,265	$ 159,365

LOANS - Summary of Impaired Loa

LOANS - Summary of Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Business Activities Loans
Recorded Investment
Total	$ 26,402	$ 28,556
Unpaid Principal Balance
Total	37,003	38,090
Related Allowance
With an allowance recorded	188	197
Business Activities Loans | Commercial real estate
Recorded Investment
Total	20,986	23,272
Unpaid Principal Balance
Total	30,464	31,708
Related Allowance
With an allowance recorded	7	9
Business Activities Loans | Commercial real estate | Other
Recorded Investment
With no related allowance	20,446	22,606
With an allowance recorded	540	666
Unpaid Principal Balance
With no related allowance	29,916	31,038
With an allowance recorded	548	670
Related Allowance
With an allowance recorded	7	9
Business Activities Loans | Commercial and industrial loans
Recorded Investment
With no related allowance	1,279	1,584
With an allowance recorded	1,724	1,251
Total	3,003	2,835
Unpaid Principal Balance
With no related allowance	2,268	2,566
With an allowance recorded	1,718	1,235
Total	3,986	3,801
Related Allowance
With an allowance recorded	52	49
Business Activities Loans | Residential mortgages
Recorded Investment
Total	2,077	2,106
Unpaid Principal Balance
Total	2,197	2,220
Related Allowance
With an allowance recorded	120	128
Business Activities Loans | Residential mortgages | 1-4 Family
Recorded Investment
With no related allowance	440	443
With an allowance recorded	1,637	1,663
Unpaid Principal Balance
With no related allowance	438	441
With an allowance recorded	1,759	1,779
Related Allowance
With an allowance recorded	120	128
Business Activities Loans | Consumer
Recorded Investment
Total	336	343
Unpaid Principal Balance
Total	356	361
Related Allowance
With an allowance recorded	9	11
Business Activities Loans | Consumer | Other
Recorded Investment
With no related allowance	0	0
With an allowance recorded	12	13
Unpaid Principal Balance
With no related allowance	0	0
With an allowance recorded	12	13
Related Allowance
With an allowance recorded	1	1
Business Activities Loans | Consumer | Home equity
Recorded Investment
With no related allowance	228	230
With an allowance recorded	96	100
Unpaid Principal Balance
With no related allowance	241	242
With an allowance recorded	103	106
Related Allowance
With an allowance recorded	8	10
Acquired Loans
Recorded Investment
Total	5,267	5,758
Unpaid Principal Balance
Total	9,427	9,523
Related Allowance
With an allowance recorded	132	97
Acquired Loans | Commercial real estate
Recorded Investment
Total	3,441	3,980
Unpaid Principal Balance
Total	6,610	6,906
Related Allowance
With an allowance recorded	48	9
Acquired Loans | Commercial real estate | Other
Recorded Investment
With no related allowance	2,531	3,055
With an allowance recorded	910	925
Unpaid Principal Balance
With no related allowance	5,694	5,959
With an allowance recorded	916	947
Related Allowance
With an allowance recorded	48	9
Acquired Loans | Commercial and industrial loans
Recorded Investment
With no related allowance	494	538
With an allowance recorded	195	228
Total	689	766
Unpaid Principal Balance
With no related allowance	612	644
With an allowance recorded	207	232
Total	819	876
Related Allowance
With an allowance recorded	4	4
Acquired Loans | Residential mortgages
Recorded Investment
Total	361	365
Unpaid Principal Balance
Total	438	441
Related Allowance
With an allowance recorded	36	36
Acquired Loans | Residential mortgages | 1-4 Family
Recorded Investment
With no related allowance	270	271
With an allowance recorded	91	94
Unpaid Principal Balance
With no related allowance	323	324
With an allowance recorded	115	117
Related Allowance
With an allowance recorded	36	36
Acquired Loans | Consumer
Recorded Investment
Total	776	647
Unpaid Principal Balance
Total	1,560	1,300
Related Allowance
With an allowance recorded	44	48
Acquired Loans | Consumer | Other
Recorded Investment
With no related allowance	0	0
With an allowance recorded	42	43
Unpaid Principal Balance
With no related allowance	0	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	532	399
With an allowance recorded	202	205
Unpaid Principal Balance
With no related allowance	1,326	1,053
With an allowance recorded	195	196
Related Allowance
With an allowance recorded	$ 37	$ 41

LOANS - Average Recorded Invest

LOANS - Average Recorded Investment and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	$ 27,406	$ 44,112
Cash Basis Interest Income Recognized	163	420
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	5,370	9,226
Cash Basis Interest Income Recognized	82	104
Commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	21,837	33,470
Cash Basis Interest Income Recognized	70	260
Commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	3,428	5,224
Cash Basis Interest Income Recognized	53	83
Commercial real estate | Other commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	21,221	20,272
Cash basis interest income recognized, with no related allowance	64	91
Average recorded investment with related allowance	616	13,198
Cash basis interest income recognized, with related allowance	6	169
Commercial real estate | Other commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	2,511	2,348
Cash basis interest income recognized, with no related allowance	37	46
Average recorded investment with related allowance	917	2,876
Cash basis interest income recognized, with related allowance	16	37
Commercial and industrial loans | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	1,389	2,625
Cash basis interest income recognized, with no related allowance	26	62
Average recorded investment with related allowance	1,757	3,933
Cash basis interest income recognized, with related allowance	40	64
Average Recorded Investment	3,146	6,558
Cash Basis Interest Income Recognized	66	126
Commercial and industrial loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	512	425
Cash basis interest income recognized, with no related allowance	12	9
Average recorded investment with related allowance	221	61
Cash basis interest income recognized, with related allowance	9	2
Average Recorded Investment	733	486
Cash Basis Interest Income Recognized	21	11
Residential mortgages | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	2,086	2,291
Cash Basis Interest Income Recognized	25	31
Residential mortgages | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	362	2,220
Cash Basis Interest Income Recognized	4	5
Residential mortgages | 1-4 Family | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	441	807
Cash basis interest income recognized, with no related allowance	6	14
Average recorded investment with related allowance	1,645	1,484
Cash basis interest income recognized, with related allowance	19	17
Residential mortgages | 1-4 Family | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	270	700
Cash basis interest income recognized, with no related allowance	2	4
Average recorded investment with related allowance	92	1,520
Cash basis interest income recognized, with related allowance	2	1
Consumer | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	337	1,793
Cash Basis Interest Income Recognized	2	3
Consumer | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	847	1,296
Cash Basis Interest Income Recognized	4	5
Consumer | Other commercial real estate | 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	17
Cash basis interest income recognized, with related allowance	0	0
Consumer | Other commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	0	19
Cash basis interest income recognized, with no related allowance	0	1
Average recorded investment with related allowance	43	0
Cash basis interest income recognized, with related allowance	0	0
Consumer | Home equity | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	228	1,730
Cash basis interest income recognized, with no related allowance	1	2
Average recorded investment with related allowance	97	46
Cash basis interest income recognized, with related allowance	1	1
Consumer | Home equity | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment, with no related allowance	601	953
Cash basis interest income recognized, with no related allowance	1	0
Average recorded investment with related allowance	203	324
Cash basis interest income recognized, with related allowance	$ 3	$ 4

LOANS - Recorded Investment and

LOANS - Recorded Investment and Number of Modifications (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)modification	Mar. 31, 2018USD ($)modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | modification	3	5
Pre-Modification Outstanding Recorded Investment	$ 338	$ 2,113
Post-Modification Outstanding Recorded Investment	$ 338	$ 2,042
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | modification	2	0
Pre-Modification Outstanding Recorded Investment	$ 145	$ 0
Post-Modification Outstanding Recorded Investment	$ 145	$ 0
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications | modification	1	4
Pre-Modification Outstanding Recorded Investment	$ 193	$ 1,995
Post-Modification Outstanding Recorded Investment	$ 193	$ 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 - Troubled Debt Restructu

LOANS - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Trouble Debt Restructuring on Financing Receivables [Roll Forward]
Balance at beginning of the period	$ 27,415	$ 41,990
Principal payments	(1,413)	(639)
TDR status change	0	0
Other reductions	(1,155)	(288)
Newly identified TDRs	338	2,042
Balance at end of the period	$ 25,185	$ 43,105

LOAN LOSS ALLOWANCE - Allowance

LOAN LOSS ALLOWANCE - Allowance Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2018
Activity in the allowance for loan losses
Balance at beginning of period	$ 61,469
Provision/(releases) for loan losses	4,001	$ 5,575
Balance at end of period	62,038
Total	61,469		$ 62,038	$ 61,469
Business Activities Loans
Activity in the allowance for loan losses
Balance at beginning of period	56,139	45,920
Charged-off loans	3,893	1,936
Recoveries on charged-off loans	584	141
Provision/(releases) for loan losses	3,382	3,152
Balance at end of period	56,212	47,277
Individually evaluated for impairment			188	197
Collectively evaluated for impairment			56,024	55,942
Total	56,139	45,920	56,212	56,139
Business Activities Loans | Commercial real estate
Activity in the allowance for loan losses
Balance at beginning of period	21,732	16,843
Charged-off loans	1,256	106
Recoveries on charged-off loans	208	23
Provision/(releases) for loan losses	1,837	1,081
Balance at end of period	22,521	17,841
Individually evaluated for impairment			7	9
Collectively evaluated for impairment			22,514	21,723
Total	21,732	16,843	22,521	21,732
Business Activities Loans | Commercial and industrial loans
Activity in the allowance for loan losses
Balance at beginning of period	16,504	13,850
Charged-off loans	1,676	890
Recoveries on charged-off loans	307	44
Provision/(releases) for loan losses	3,112	225
Balance at end of period	18,247	13,229
Individually evaluated for impairment			52	49
Collectively evaluated for impairment			18,195	16,455
Total	16,504	13,850	18,247	16,504
Business Activities Loans | Residential mortgages
Activity in the allowance for loan losses
Balance at beginning of period	10,535	9,420
Charged-off loans	42	0
Recoveries on charged-off loans	15	0
Provision/(releases) for loan losses	(1,299)	(822)
Balance at end of period	9,209	8,598
Individually evaluated for impairment			120	128
Collectively evaluated for impairment			9,089	10,407
Total	10,535	9,420	9,209	10,535
Business Activities Loans | Consumer
Activity in the allowance for loan losses
Balance at beginning of period	7,368	5,807
Charged-off loans	919	940
Recoveries on charged-off loans	54	74
Provision/(releases) for loan losses	(268)	2,668
Balance at end of period	6,235	7,609
Individually evaluated for impairment			9	11
Collectively evaluated for impairment			6,226	7,357
Total	7,368	5,807	6,235	7,368
Acquired Loans
Activity in the allowance for loan losses
Balance at beginning of period	5,330	5,914
Charged-off loans	686	1,855
Recoveries on charged-off loans	563	100
Provision/(releases) for loan losses	619	2,423
Balance at end of period	5,826	6,582
Individually evaluated for impairment			132	97
Collectively evaluated for impairment			5,694	5,233
Total	5,330	5,914	5,826	5,330
Acquired Loans | Commercial real estate
Activity in the allowance for loan losses
Balance at beginning of period	3,153	3,856
Charged-off loans	180	740
Recoveries on charged-off loans	476	6
Provision/(releases) for loan losses	461	873
Balance at end of period	3,910	3,995
Individually evaluated for impairment			48	9
Collectively evaluated for impairment			3,862	3,144
Total	3,153	3,856	3,910	3,153
Acquired Loans | Commercial and industrial loans
Activity in the allowance for loan losses
Balance at beginning of period	1,064	1,125
Charged-off loans	262	155
Recoveries on charged-off loans	51	29
Provision/(releases) for loan losses	26	244
Balance at end of period	879	1,243
Individually evaluated for impairment			4	4
Collectively evaluated for impairment			875	1,060
Total	1,064	1,125	879	1,064
Acquired Loans | Residential mortgages
Activity in the allowance for loan losses
Balance at beginning of period	630	598
Charged-off loans	73	431
Recoveries on charged-off loans	5	25
Provision/(releases) for loan losses	60	854
Balance at end of period	622	1,046
Individually evaluated for impairment			36	36
Collectively evaluated for impairment			586	594
Total	630	598	622	630
Acquired Loans | Consumer
Activity in the allowance for loan losses
Balance at beginning of period	483	335
Charged-off loans	171	529
Recoveries on charged-off loans	31	40
Provision/(releases) for loan losses	72	452
Balance at end of period	415	298
Individually evaluated for impairment			44	48
Collectively evaluated for impairment			371	435
Total	$ 483	$ 335	$ 415	$ 483

LOAN LOSS ALLOWANCE - Narrative

LOAN LOSS ALLOWANCE - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)grade
Credit quality information
Allowance for losses on acquired loans under Subtopic ASC 310-30 | $	$ 5.8
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 commercial real estate
Credit quality information
Number of grades in internal loan rating system (grade)	2
Consumer | Business Activities Loans | Performing | Maximum | Other commercial real estate
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 commercial real estate
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	Mar. 31, 2019	Dec. 31, 2018
Credit quality information
Total Loans	$ 8,947,495	$ 9,043,253
Special mention
Credit quality information
Total Loans	49,506	47,166
Substandard
Credit quality information
Total Loans	127,191	109,490
Non-Accrual
Credit quality information
Total Loans	30,504	32,425
Classified
Credit quality information
Total Loans	157,695	141,915
Criticized
Credit quality information
Total Loans	207,201	189,081
Commercial real estate
Credit quality information
Total Loans	3,388,139	3,400,221
Commercial real estate | Construction
Credit quality information
Total Loans	327,773	353,012
Residential mortgages
Credit quality information
Total Loans	2,544,824	2,566,424
Residential mortgages | Construction
Credit quality information
Total Loans	11,382	9,756
Residential mortgages | 1-4 family
Credit quality information
Total Loans	2,533,442	2,556,668
Consumer
Credit quality information
Total Loans	1,057,193	1,096,562
Consumer | Home equity
Credit quality information
Total Loans	365,328	376,680
Consumer | Auto and other
Credit quality information
Total Loans	691,865	719,882
Business Activities Loans
Credit quality information
Total Loans	7,366,359	7,366,744
Business Activities Loans | Special mention
Credit quality information
Total Loans	36,149	26,333
Business Activities Loans | Substandard
Credit quality information
Total Loans	77,037	60,698
Business Activities Loans | Non-Accrual
Credit quality information
Total Loans	25,177	26,478
Business Activities Loans | Classified
Credit quality information
Total Loans	102,214	87,176
Business Activities Loans | Criticized
Credit quality information
Total Loans	138,363	113,509
Business Activities Loans | Commercial real estate
Credit quality information
Total Loans	2,604,812	2,588,711
Business Activities Loans | Commercial real estate | Pass
Credit quality information
Total Loans	2,537,802	2,525,921
Business Activities Loans | Commercial real estate | Special mention
Credit quality information
Total Loans	8,946	9,805
Business Activities Loans | Commercial real estate | Substandard
Credit quality information
Total Loans	58,064	52,985
Business Activities Loans | Commercial real estate | Construction
Credit quality information
Total Loans	302,258	327,792
Business Activities Loans | Commercial real estate | Construction | Pass
Credit quality information
Total Loans	302,258	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	2,302,554	2,260,919
Business Activities Loans | Commercial real estate | Real Estate | Pass
Credit quality information
Total Loans	2,235,544	2,198,129
Business Activities Loans | Commercial real estate | Real Estate | Special mention
Credit quality information
Total Loans	8,946	9,805
Business Activities Loans | Commercial real estate | Real Estate | Substandard
Credit quality information
Total Loans	58,064	52,985
Business Activities Loans | Commercial and industrial loans
Credit quality information
Total Loans	1,540,985	1,513,538
Business Activities Loans | Commercial and industrial loans | Pass
Credit quality information
Total Loans	1,475,485	1,469,139
Business Activities Loans | Commercial and industrial loans | Special mention
Credit quality information
Total Loans	26,086	14,279
Business Activities Loans | Commercial and industrial loans | Substandard
Credit quality information
Total Loans	38,492	29,176
Business Activities Loans | Commercial and industrial loans | Doubtful
Credit quality information
Total Loans	922	944
Business Activities Loans | Residential mortgages
Credit quality information
Total Loans	2,311,634	2,327,298
Business Activities Loans | Residential mortgages | Pass
Credit quality information
Total Loans	2,309,246	2,324,239
Business Activities Loans | Residential mortgages | Special mention
Credit quality information
Total Loans	531	1,619
Business Activities Loans | Residential mortgages | Substandard
Credit quality information
Total Loans	1,857	1,440
Business Activities Loans | Residential mortgages | Construction
Credit quality information
Total Loans	11,228	9,582
Business Activities Loans | Residential mortgages | Construction | Pass
Credit quality information
Total Loans	11,228	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	2,300,406	2,317,716
Business Activities Loans | Residential mortgages | 1-4 family | Pass
Credit quality information
Total Loans	2,298,018	2,314,657
Business Activities Loans | Residential mortgages | 1-4 family | Special mention
Credit quality information
Total Loans	531	1,619
Business Activities Loans | Residential mortgages | 1-4 family | Substandard
Credit quality information
Total Loans	1,857	1,440
Business Activities Loans | Consumer
Credit quality information
Total Loans	908,928	937,197
Business Activities Loans | Consumer | Performing
Credit quality information
Total Loans	906,093	934,565
Business Activities Loans | Consumer | Nonperforming
Credit quality information
Total Loans	2,835	2,632
Business Activities Loans | Consumer | Home equity
Credit quality information
Total Loans	281,568	289,961
Business Activities Loans | Consumer | Home equity | Performing
Credit quality information
Total Loans	280,651	289,028
Business Activities Loans | Consumer | Home equity | Nonperforming
Credit quality information
Total Loans	917	933
Business Activities Loans | Consumer | Auto and other
Credit quality information
Total Loans	627,360	647,236
Business Activities Loans | Consumer | Auto and other | Performing
Credit quality information
Total Loans	625,442	645,537
Business Activities Loans | Consumer | Auto and other | Nonperforming
Credit quality information
Total Loans	1,918	1,699
Acquired Loans
Credit quality information
Total Loans	1,581,136	1,676,509
Acquired Loans | Special mention
Credit quality information
Total Loans	13,357	20,833
Acquired Loans | Substandard
Credit quality information
Total Loans	50,154	48,792
Acquired Loans | Non-Accrual
Credit quality information
Total Loans	5,327	5,947
Acquired Loans | Classified
Credit quality information
Total Loans	55,481	54,739
Acquired Loans | Criticized
Credit quality information
Total Loans	68,838	75,572
Acquired Loans | Commercial real estate
Credit quality information
Total Loans	783,327	811,510
Acquired Loans | Commercial real estate | Pass
Credit quality information
Total Loans	749,551	768,203
Acquired Loans | Commercial real estate | Special mention
Credit quality information
Total Loans	426	9,086
Acquired Loans | Commercial real estate | Substandard
Credit quality information
Total Loans	33,350	34,221
Acquired Loans | Commercial real estate | Construction
Credit quality information
Total Loans	25,515	25,220
Acquired Loans | Commercial real estate | Construction | Pass
Credit quality information
Total Loans	24,813	24,519
Acquired Loans | Commercial real estate | Construction | Special mention
Credit quality information
Total Loans	0	0
Acquired Loans | Commercial real estate | Construction | Substandard
Credit quality information
Total Loans	702	701
Acquired Loans | Commercial real estate | Real Estate
Credit quality information
Total Loans	757,812	786,290
Acquired Loans | Commercial real estate | Real Estate | Pass
Credit quality information
Total Loans	724,738	743,684
Acquired Loans | Commercial real estate | Real Estate | Special mention
Credit quality information
Total Loans	426	9,086
Acquired Loans | Commercial real estate | Real Estate | Substandard
Credit quality information
Total Loans	32,648	33,520
Acquired Loans | Commercial and industrial loans
Credit quality information
Total Loans	416,354	466,508
Acquired Loans | Commercial and industrial loans | Pass
Credit quality information
Total Loans	387,162	439,602
Acquired Loans | Commercial and industrial loans | Special mention
Credit quality information
Total Loans	12,362	11,374
Acquired Loans | Commercial and industrial loans | Substandard
Credit quality information
Total Loans	16,830	15,532
Acquired Loans | Residential mortgages
Credit quality information
Total Loans	233,190	239,126
Acquired Loans | Residential mortgages | Pass
Credit quality information
Total Loans	228,913	235,347
Acquired Loans | Residential mortgages | Special mention
Credit quality information
Total Loans	503	144
Acquired Loans | Residential mortgages | Substandard
Credit quality information
Total Loans	3,774	3,635
Acquired Loans | Residential mortgages | Construction
Credit quality information
Total Loans	154	174
Acquired Loans | Residential mortgages | Construction | Pass
Credit quality information
Total Loans	154	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	233,036	238,952
Acquired Loans | Residential mortgages | 1-4 family | Pass
Credit quality information
Total Loans	228,759	235,173
Acquired Loans | Residential mortgages | 1-4 family | Special mention
Credit quality information
Total Loans	503	144
Acquired Loans | Residential mortgages | 1-4 family | Substandard
Credit quality information
Total Loans	3,774	3,635
Acquired Loans | Consumer
Credit quality information
Total Loans	148,265	159,365
Acquired Loans | Consumer | Performing
Credit quality information
Total Loans	147,062	158,163
Acquired Loans | Consumer | Nonperforming
Credit quality information
Total Loans	1,203	1,202
Acquired Loans | Consumer | Home equity
Credit quality information
Total Loans	83,760	86,719
Acquired Loans | Consumer | Home equity | Performing
Credit quality information
Total Loans	82,866	85,968
Acquired Loans | Consumer | Home equity | Nonperforming
Credit quality information
Total Loans	894	751
Acquired Loans | Consumer | Auto and other
Credit quality information
Total Loans	64,505	72,646
Acquired Loans | Consumer | Auto and other | Performing
Credit quality information
Total Loans	64,196	72,195
Acquired Loans | Consumer | Auto and other | Nonperforming
Credit quality information
Total Loans	$ 309	$ 451

DEPOSITS (Details)

DEPOSITS (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Deposits [Abstract]
Time less than $100,000	$ 712,774	$ 719,689
Time $100,000 through $250,000	2,102,587	2,060,500
Time more than $250,000	529,134	507,528
Total time deposits	3,344,495	3,287,717
Brokered time deposits	1,500,000	1,400,000
Reciprocal deposits	$ 93,200	$ 84,400

BORROWED FUNDS - Summary of Bor

BORROWED FUNDS - Summary of Borrowed Funds (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Short-term borrowings	$ 861,349	$ 1,118,832
Long-term borrowings	348,402	398,984
Total borrowings	$ 1,209,751	$ 1,517,816
Weighted average rate on short-term borrowings	2.67%	2.58%
Weighted average rate on long-term borrowings	3.39%	3.16%
Weighted average rate	2.88%	2.73%
Advances from the FHLB
Debt Instrument [Line Items]
Short-term borrowings	$ 861,349	$ 1,118,832
Long-term borrowings	$ 258,840	$ 309,466
Weighted average rate on short-term borrowings	2.67%	2.58%
Weighted average rate on long-term borrowings	2.29%	2.17%
Subordinated borrowings
Debt Instrument [Line Items]
Long-term borrowings	$ 74,098	$ 74,054
Weighted average rate on long-term borrowings	7.00%	7.00%
Junior subordinated borrowings
Debt Instrument [Line Items]
Long-term borrowings	$ 15,464	$ 15,464
Weighted average rate on long-term borrowings	4.50%	4.50%

BORROWED FUNDS - Narrative (Det

BORROWED FUNDS - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended
	Sep. 30, 2012	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Line of credit, current		$ 3,000,000
Short-term debt		861,349,000	$ 1,118,832,000
Long-term borrowings		348,402,000	398,984,000
Advances from the FHLB
Debt Instrument [Line Items]
Long-term line of credit		0	0
Short-term debt		861,349,000	1,118,832,000
Long-term borrowings		258,840,000	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 Amortizing Advances
Debt Instrument [Line Items]
Long-term borrowings		1,700,000	1,700,000
Subordinated borrowings
Debt Instrument [Line Items]
Long-term borrowings		74,098,000	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 | Three-month LIBOR rate
Debt Instrument [Line Items]
Interest rate margin	5.113%
Unamortized debt issuance expense		430,000	461,000
Junior subordinated borrowings
Debt Instrument [Line Items]
Long-term borrowings		$ 15,464,000	$ 15,464,000
Junior subordinated borrowings | 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		4.50%	4.50%
Period up to which interest payments can be deferred		5 years
Junior subordinated borrowings | LIBOR | Trust I
Debt Instrument [Line Items]
Interest rate margin		1.85%

BORROWED FUNDS - Summary of Mat

BORROWED FUNDS - Summary of Maturities of FHLB (Details) - Fixed rate advances $ in Thousands	Mar. 31, 2019USD ($)
Principal
2019	$ 961,424
2020	152,262
2021	202
2022	32
2023 and beyond	6,269
Total FHLB advances	$ 1,120,189
Weighted Average
Weighted Average Rate
2019	2.57%
2020	2.69%
2021	2.50%
2022	2.00%
2023 and beyond	2.51%
Total FHLB advances	2.58%

DERIVATIVE INSTRUMENTS AND HE_3

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Derivative [Line Items]
Notional amount	$ 3,734,193		$ 3,303,570
Cash collateral pledged	46,700
Amortized cost of securities pledged as collateral to derivative counterparties	12,400
Fair value of securities as pledged collateral to derivative counterparties	12,300
Interest expense	35,650	$ 21,389
Commercial counterparties
Derivative [Line Items]
Net asset position	500		5,900
Interest rate swaps
Derivative [Line Items]
Notional amount	9,900
Cash collateral pledged	46,749		25,412
Derivative liability	39,523		28,593
Amount of collateral posted for the net liability positions	46,700		25,400
Interest rate swaps | Commercial counterparties
Derivative [Line Items]
Cash collateral pledged	0		0
Net asset position	37,400		21,200
Derivative liability	4,116		9,745
Interest rate swaps | Institutional counterparties
Derivative [Line Items]
Cash collateral pledged	46,749		25,412
Derivative liability	35,407		18,848
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	299,638		$ 165,079
Economic hedges
Derivative [Line Items]
Notional amount	3,400,000
Credit valuation adjustments	$ 137
Economic hedges | Tax advantaged economic development bonds
Derivative [Line Items]
Fixed rate of interest	5.09%
Maturity period	21 years
Economic hedges | Interest rate swaps
Derivative [Line Items]
Notional amount	$ 2,800,000
Economic hedges | Risk participation agreements with dealer banks
Derivative [Line Items]
Notional amount	300,000
Economic hedges | Forward sale commitments
Derivative [Line Items]
Notional amount	$ 300,000

DERIVATIVE INSTRUMENTS AND HE_4

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 3,734,193	$ 3,303,570
Estimated fair value asset (liability)	3,420	1,680
Interest rate swaps
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	9,900
Total economic hedges
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	3,400,000
Total economic hedges | Interest rate swaps
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	2,800,000
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	300,000
Designated as Hedging Instrument | Total economic hedges
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	3,434,555	3,138,491
Estimated fair value asset (liability)	(2,898)	(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	$ 9,917	$ 10,090
Weighted average maturity	10 years 8 months	10 years 11 months
Weighted average rate, received	2.86%	2.72%
Weighted average rate, contract pay rate	5.09%	5.09%
Estimated fair value asset (liability)	$ (1,361)	$ (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	$ 1,405,661	$ 1,346,894
Weighted average maturity	6 years 7 months	6 years 8 months
Weighted average rate, received	4.10%	4.04%
Weighted average rate, contract pay rate	4.52%	4.53%
Estimated fair value asset (liability)	$ (33,941)	$ (11,953)
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	$ 1,405,661	$ 1,346,894
Weighted average maturity	6 years 7 months	6 years 8 months
Weighted average rate, received	4.52%	4.53%
Weighted average rate, contract pay rate	4.10%	4.04%
Estimated fair value asset (liability)	$ 33,294	$ 11,443
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	$ 265,305	$ 243,806
Weighted average maturity	8 years 1 month	5 years 8 months
Estimated fair value asset (liability)	$ 362	$ 237
Designated as Hedging Instrument | Total economic hedges | Forward sale commitments
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 348,011	$ 190,807
Weighted average maturity	2 months	2 months 12 days
Estimated fair value asset (liability)	$ (1,252)	$ (734)
Not Designated as Hedging Instrument
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	299,638	165,079
Estimated fair value asset (liability)	6,318	3,927
Not Designated as Hedging Instrument | Commitments to lend
Interest rate swap agreements and non-hedging derivative assets and liabilities
Notional amount	$ 299,638	$ 165,079
Weighted average maturity	2 months	2 months 12 days
Estimated fair value asset (liability)	$ 6,318	$ 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
	Mar. 31, 2019	Mar. 31, 2018
Interest rate swaps | Economic hedges | Industrial revenue bond
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	$ (121)	$ 311
Interest rate swaps | Economic hedges | Loans with commercial loan customers
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	(21,988)	14,669
Reverse interest rate swaps | Economic hedges | Loans with commercial loan customers
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	21,988	(14,669)
(Unfavorable)/Favorable change in credit valuation adjustment recognized in other non-interest income	(137)	237
Risk participation agreements with dealer banks | Economic hedges
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	125	16
Forward sale commitments | Economic hedges
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	(518)	(909)
Realized gain in discontinued operations	(1,715)	3,922
Commitments to lend | Non-hedging derivatives
Derivative [Line Items]
Unrealized (loss)/gain recognized in other non-interest income	2,391	6,531
Realized gain in discontinued operations	$ 9,432	$ 603

DERIVATIVE INSTRUMENTS AND HE_6

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Offsetting of Financial Assets and Derivative Assets (Details) - Interest rate swaps - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	$ 37,990	$ 30,830
Gross amounts offset in the Statements of Condition	(112)	(3,749)
Net amounts of assets presented in the Statements of Condition	37,878	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	37,878	27,081
Institutional counterparties
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	478	9,485
Gross amounts offset in the Statements of Condition	(11)	(3,592)
Net amounts of assets presented in the Statements of Condition	467	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	467	5,893
Commercial counterparties
Offsetting of Financial Assets and Derivative Assets
Gross amounts of recognized assets	37,512	21,345
Gross amounts offset in the Statements of Condition	(101)	(157)
Net amounts of assets presented in the Statements of Condition	37,411	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	$ 37,411	$ 21,188

DERIVATIVE INSTRUMENTS AND HE_7

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Offsetting Financial Liabilities and Derivative Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts not offset in the Statements of Condition, cash collateral pledged	$ 46,700
Interest rate swaps
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(43,862)	$ (29,881)
Gross amounts offset in the Statements of Condition	4,339	1,288
Net amounts of liabilities presented in the Statements of Condition	(39,523)	(28,593)
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	46,749	25,412
Net amount	7,226	(3,181)
Interest rate swaps | Institutional counterparties
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(39,746)	(19,949)
Gross amounts offset in the Statements of Condition	4,339	1,101
Net amounts of liabilities presented in the Statements of Condition	(35,407)	(18,848)
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	46,749	25,412
Net amount	11,342	6,564
Interest rate swaps | Commercial counterparties
Offsetting of Financial Liabilities and Derivative Liabilities
Gross amounts of recognized liabilities	(4,116)	(9,932)
Gross amounts offset in the Statements of Condition	0	187
Net amounts of liabilities presented in the Statements of Condition	(4,116)	(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	$ (4,116)	$ (9,745)

LEASES - Narrative (Details)

LEASES - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Lessee, Lease, Description [Line Items]
Operating lease, weighted average discount rate, percent	3.39%
Finance lease, weighted average discount rate, percent	5.00%
Operating lease, weighted average remaining lease term	10 years 4 months 24 days
Finance lease, weighted average remaining lease term	15 years 7 months 6 days
Operating lease expense	$ 3.4
Minimum
Lessee, Lease, Description [Line Items]
Lessee, lease, remaining lease term	1 month
Maximum
Lessee, Lease, Description [Line Items]
Lessee, lease, remaining lease term	19 years

LEASES - Assets and Liabilities

LEASES - Assets and Liabilities (Details) $ in Thousands	Mar. 31, 2019USD ($)
Lease Right-of-Use Assets
Operating lease right-of-use assets	$ 75,212
Finance lease right-of-use assets	8,128
Total Lease Right-of-Use Assets	83,340
Lease Liabilities
Operating lease liabilities	78,297
Finance lease liabilities	11,228
Total Lease Liabilities	$ 89,525

LEASES - Supplemental Cash Flow

LEASES - Supplemental Cash Flow Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 3,498
Operating cash flows from finance leases	159
Financing cash flows from finance leases	98
Right-of-use assets obtained in exchange for lease obligations - operating leases	79,589
Right-of-use assets obtained in exchange for lease obligations - finance leases	$ 0

LEASES - Maturity Analysis of L

LEASES - Maturity Analysis of Lease Liability (Details) $ in Thousands	Mar. 31, 2019USD ($)
Operating Lease Liabilities, Payments Due [Abstract]
2019	$ 9,803
2020	12,118
2021	10,986
2022	9,945
2023	8,070
Thereafter	42,363
Total undiscounted lease payments	93,285
Less amounts representing interest	(14,988)
Lease liability	78,297
Finance Lease Liabilities, Payments, Due [Abstract]
2019	752
2020	1,031
2021	1,031
2022	1,031
2023	1,037
Thereafter	11,296
Total undiscounted lease payments (1)	16,178
Less amounts representing interest (1)	(4,950)
Lease liability (1)	$ 11,228

CAPITAL RATIOS AND SHAREHOLDE_3

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Actual and Required Capital Ratios (Details)	Mar. 31, 2019	Dec. 31, 2018
Tier 1 capital to risk-weighted assets
Total capital to risk weighted assets	13.10%	13.00%
Common equity tier 1 capital to risk weighted assets	11.50%	11.40%
Tier 1 capital to risk weighted assets	11.70%	11.60%
Tier 1 capital to average assets	9.00%	9.00%
Bank
Tier 1 capital to risk-weighted assets
Total capital to risk weighted assets	12.20%	12.20%
Common equity tier 1 capital to risk weighted assets	11.60%	11.60%
Tier 1 capital to risk weighted assets	11.60%	11.60%
Tier 1 capital to average assets	9.00%	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	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Total shareholders’ equity	$ 1,577,005	$ 1,552,918	$ 1,497,657	$ 1,496,264
Accumulated other comprehensive (loss)
Total shareholders’ equity	(2,906)	(13,470)	(15,427)	4,161
Net unrealized holding gain (loss) on AFS securities
Other accumulated comprehensive income (loss), before tax	(1,052)	(15,267)
Income taxes related to items of accumulated other comprehensive income	163	3,814
Total shareholders’ equity	(889)	(11,453)	(13,182)	6,008
Net unrealized holding (loss) on pension plans
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)	$ (2,245)	$ (1,847)

CAPITAL RATIOS AND SHAREHOLDE_5

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Components of OCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net unrealized holding gain (loss)
Net of Tax	$ 10,568	$ (14,231)
Less: reclassification adjustment for gains (losses) realized in net income
Net of Tax	4	0
Other comprehensive income (loss)
Before Tax	14,215	(19,162)
Tax Effect	(3,651)	4,931
Total other comprehensive income/(loss)	10,564	(14,231)
Total change to accumulated other comprehensive (loss)
Before Tax		(27,541)
Tax Effect		7,953
Net of Tax		(19,588)
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	14,221	(19,162)
Tax Effect	(3,653)	4,931
Net of Tax	10,568	(14,231)
Less: reclassification adjustment for gains (losses) realized in net income
Before Tax	6	0
Tax Effect	(2)	0
Net of Tax	4	0
Other comprehensive income (loss)
Before Tax	14,215	(19,162)
Tax Effect	(3,651)	4,931
Total other comprehensive income/(loss)	$ 10,564	$ (14,231)

CAPITAL RATIOS AND SHAREHOLDE_6

CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Changes in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ 1,552,918	$ 1,496,264
Other comprehensive (loss) before reclassifications	10,568	(14,231)
Less: amounts reclassified from accumulated other comprehensive income (loss)	4	0
Total other comprehensive income/(loss)	10,564	(14,231)
Balance at end of period	1,577,005	1,497,657
Net unrealized holding gain (loss) on AFS securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(11,453)	6,008
Other comprehensive (loss) before reclassifications	10,568	(14,231)
Less: amounts reclassified from accumulated other comprehensive income (loss)	4	0
Total other comprehensive income/(loss)	10,564	(14,231)
Balance at end of period	(889)	(13,182)
Net unrealized holding (loss) on pension plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(2,017)	(1,847)
Other comprehensive (loss) before reclassifications	0	0
Less: amounts reclassified from accumulated other comprehensive income (loss)	0	0
Total other comprehensive income/(loss)	0	0
Balance at end of period	(2,017)	(2,245)
Accumulated other comprehensive (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(13,470)	4,161
Total other comprehensive income/(loss)	10,564	(14,231)
Balance at end of period	$ (2,906)	(15,427)
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
	Mar. 31, 2019	Mar. 31, 2018
Amounts reclassified out of each component of accumulated other comprehensive income
Non-interest income	$ 21,722	$ 18,892
Tax (expense) benefit	(6,917)	(7,337)
Income available to common shareholders	23,395	25,018
Amount Reclassified From Accumulated Other Comprehensive Income (loss)
Amounts reclassified out of each component of accumulated other comprehensive income
Income available to common shareholders	4	0
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	6	0
Tax (expense) benefit	(2)	0
Income available to common shareholders	$ 4	$ 0

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
	Mar. 31, 2019	Mar. 31, 2018
Earnings per share
Income from continuing operations	$ 24,272	$ 25,371
(Loss) from discontinued operations	(637)	(123)
Net income	$ 23,635	$ 25,248
Average number of common shares issued (in shares)	46,212	46,212
Less: average number of treasury shares (in shares)	717	869
Less: average number of unvested stock award shares (in shares)	425	420
Plus: average participating preferred shares (in shares)	1,043	1,043
Average number of basic common shares outstanding (in shares)	46,113	45,966
Average number of diluted common shares outstanding (in shares)	46,261	46,200
Basic earnings per common share:
Continuing operations (in dollars per share)	$ 0.52	$ 0.55
Discontinued operations (in dollars per share)	(0.01)	0
Total (in dollars per share)	0.51	0.55
Diluted earnings per common share:
Continuing operations (in dollars per share)	0.52	0.55
Discontinued operations (in dollars per share)	(0.01)	0
Total (in dollars per share)	$ 0.51	$ 0.55
Unvested stock award shares
Earnings per share
Plus: dilutive effect of share-based payment arrangements (in shares)	135	202
Stock options
Earnings per share
Plus: dilutive effect of share-based payment arrangements (in shares)	13	32

EARNINGS PER SHARE - Narrative

EARNINGS PER SHARE - Narrative (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Unvested stock award shares
Anti-dilutive securities
Securities excluded from the earnings per share calculations (in shares)	291	219
Stock options
Anti-dilutive securities
Securities excluded from the earnings per share calculations (in shares)	13	36

STOCK-BASED COMPENSATION PLAN_2

STOCK-BASED COMPENSATION PLANS (Details) - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 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)	(65)	(87)
Forfeited (in shares)	(13)
Balance at the end of the period (in shares)	424
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)	31.46
Forfeited (in dollars per share)	33.86
Balance at the end of the period (in dollars per share)	$ 32.72
Stock Options Outstanding
Stock Options Outstanding, Number of Shares
Balance at the beginning of the period (in shares)	31
Granted (in shares)	0
Stock options exercised (in shares)	0
Expired (in shares)	0
Balance at the end of the period (in shares)	31
Exercisable options at the end of the period (in shares)	31
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
Stock options exercised (in dollars per share)	0
Expired (in dollars per share)	0
Balance at the end of the period (in dollars per share)	11.97
Exercisable options at the end of the period (in dollars per share)	$ 11.97

STOCK-BASED COMPENSATION PLAN_3

STOCK-BASED COMPENSATION PLANS - Narrative (Details) - USD ($) shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options	$ 0	$ 76,000
Total compensation cost	1,000,000	1,400,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options	$ 0	$ 76,000
Non-Vested Stock Awards Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vested (in shares)	65	87

FAIR VALUE MEASUREMENTS - Measu

FAIR VALUE MEASUREMENTS - Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 1,386,768	$ 1,399,647
Marketable equity securities	59,121	56,638
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,164	11,212
Securities available for sale	1,386,768	1,399,647
Marketable equity securities	59,121	56,638
Loans held for sale	141,594	96,233
Derivative assets	48,105	35,654
Derivative liabilities	44,686	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	58,557	56,074
Loans held for sale	0	0
Derivative assets	0	0
Derivative liabilities	1,252	734
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	0	0
Securities available for sale	1,386,768	1,399,647
Marketable equity securities	564	564
Loans held for sale	141,594	96,233
Derivative assets	41,787	31,727
Derivative liabilities	43,434	33,239
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,164	11,212
Securities available for sale	0	0
Marketable equity securities	0	0
Loans held for sale	0	0
Derivative assets	6,318	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	11,164	11,212
Loans held for sale	141,594	96,233
Derivative assets	48,105	35,654
Capitalized servicing rights	11,351	11,485
Derivative liabilities	44,686	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	117,467	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	907,914	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	166,116	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	59,378	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	119,267	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	8,602	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	8,024	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	59,121	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	1,252	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	58,557	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	141,594	96,233
Derivative assets	41,787	31,727
Capitalized servicing rights	0	0
Derivative liabilities	43,434	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	117,467	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	907,914	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	166,116	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	59,378	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	119,267	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	8,602	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	8,024	8,354
Recurring | Level 2 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable equity securities	564	564
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading security	11,164	11,212
Loans held for sale	0	0
Derivative assets	6,318	3,927
Capitalized servicing rights	11,351	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
	Mar. 31, 2019USD ($)security	Mar. 31, 2018USD ($)	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	$ 141,594		$ 96,233
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	141,594		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	141,594		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	11,500	$ 12,400
Proceeds from sale and collection of loans held-for-sale	9,000	10,800
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	60	(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	4,773		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	1,200	$ (2,400)
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	$ 136,821		$ 94,050

FAIR VALUE MEASUREMENTS - Loans

FAIR VALUE MEASUREMENTS - Loans Held for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Loans Held for Sale
Assets from discontinued operations	$ 165,078	$ 114,259
Level 2
Loans Held for Sale
Aggregate Fair Value	141,594	96,233
Recurring | Level 2
Loans Held for Sale
Aggregate Fair Value	141,594	96,233
Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	141,594	96,233
Assets from discontinued operations	137,133	93,019
Aggregate Fair Value Less Aggregate Unpaid Principal	4,461	3,214
Continuing Operations | Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	4,773	2,183
Assets from discontinued operations	4,670	2,140
Aggregate Fair Value Less Aggregate Unpaid Principal	103	43
Discontinued Operations | Recurring | Loans Held for Sale | Level 2
Loans Held for Sale
Aggregate Fair Value	136,821	94,050
Assets from discontinued operations	132,463	90,879
Aggregate Fair Value Less Aggregate Unpaid Principal	$ 4,358	$ 3,171

FAIR VALUE MEASUREMENTS - Chang

FAIR VALUE MEASUREMENTS - Changes in Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 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	$ 6,318	$ 6,531
Derivative Asset (Liability)
Beginning balance	3,927	5,259
Unrealized gain/(loss), net recognized in other non-interest income	0	0
Transfers to held for sale loans	(8,830)	(10,941)
Ending balance	6,318	6,531
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
Derivative Asset (Liability)
Beginning balance	0	19
Unrealized gain/(loss), net recognized in other non-interest income	0	0
Ending balance	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	11,212	12,277
Unrealized gain/(loss), net recognized in other non-interest income	126	(317)
Paydown of trading security	(174)	(165)
Balance at the end of the period	11,164	11,795
Unrealized gains (losses) relating to instruments still held at the end of the period	1,248	1,205
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	11,485	3,834
Unrealized gain/(loss), net recognized in other non-interest income	0	0
Additions to servicing rights	1,008	1,406
Balance at the end of the period	11,351	5,705
Unrealized gains (losses) relating to instruments still held at the end of the period	0	0
Discontinued Operations | Commitments to lend
Derivative Asset (Liability)
Unrealized gain/(loss), net recognized in other non-interest income	11,221	12,213
Discontinued Operations | Forward commitments
Derivative Asset (Liability)
Unrealized gain/(loss), net recognized in other non-interest income	0	(19)
Discontinued Operations | Trading Security
Changes in Level 3 assets that were measured at fair value on a recurring basis
Unrealized gain/(loss), net recognized in other non-interest income	0	0
Discontinued Operations | Capitalized servicing rights
Changes in Level 3 assets that were measured at fair value on a recurring basis
Unrealized gain/(loss), net recognized in other non-interest income	$ (1,142)	$ 465

FAIR VALUE MEASUREMENTS - Unobs

FAIR VALUE MEASUREMENTS - Unobservable Inputs Recurring (Details) $ in Thousands	Mar. 31, 2019USD ($)$ / contract	Dec. 31, 2018USD ($)$ / contract
Quantitative information about the significant unobservable inputs within Level 3
Trading security	$ 11,164	$ 11,212
Level 3 | Recurring
Quantitative information about the significant unobservable inputs within Level 3
Trading security	11,164	11,212
Total	$ 28,833	$ 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	0.0277	0.0307
Level 3 | Recurring | Commitments to lend
Quantitative information about the significant unobservable inputs within Level 3
Derivative asset	$ 6,318	$ 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	0.8218	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 | Forward commitments
Quantitative information about the significant unobservable inputs within Level 3
Derivative asset	$ 0	$ 0
Level 3 | Recurring | Forward commitments | Historical Trend | Closing Ratio
Quantitative information about the significant unobservable inputs within Level 3
Derivative asset, significant unobservable input value	0.8218	0.8236
Level 3 | Recurring | Forward commitments | 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	$ 11,351	$ 11,485
Level 3 | Recurring | Capitalized servicing rights | Discounted Cash Flow | Discount rate
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1000	0.1000
Level 3 | Recurring | Capitalized servicing rights | Discounted Cash Flow | Constant prepayment rate (CPR)
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1111	0.0930

FAIR VALUE MEASUREMENTS - Mea_2

FAIR VALUE MEASUREMENTS - Measured on Non-recurring Basis (Details) - Non-recurring - Level 3 - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	$ 5,129	$ 4,892
Capitalized servicing rights	11,894	11,891
Total	$ 17,023	$ 16,783

FAIR VALUE MEASUREMENTS - Uno_2

FAIR VALUE MEASUREMENTS - Unobservable Inputs Non-recurring (Details) - Non-recurring - Level 3 $ in Thousands	Mar. 31, 2019USD ($)$ / contract	Dec. 31, 2018USD ($)$ / contract
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	$ 5,129	$ 4,892
Capitalized servicing rights	11,894	11,891
Total	17,023	16,783
Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans	$ 5,129	$ 4,892
Minimum | Loss severity | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.0067	0
Minimum | Appraised value | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	300	300
Maximum | Loss severity | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.5238	0.5116
Maximum | Appraised value | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	826,000	877,000
Weighted Average | Loss severity | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value	0.0474	0.0675
Weighted Average | Appraised value | Fair Value of Collateral
Quantitative information about the significant unobservable inputs within Level 3
Impaired loans, significant unobservable input value | $ / contract	33,200	363,000
Capitalized servicing rights | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Capitalized servicing rights	$ 11,894	$ 11,891
Capitalized servicing rights | Minimum | Constant prepayment rate (CPR) | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.0776	0.0774
Capitalized servicing rights | Minimum | Discount rate | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1000	0.1000
Capitalized servicing rights | Maximum | Constant prepayment rate (CPR) | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1177	0.1129
Capitalized servicing rights | Maximum | Discount rate | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1376	0.1413
Capitalized servicing rights | Weighted Average | Constant prepayment rate (CPR) | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1055	0.0974
Capitalized servicing rights | Weighted Average | Discount rate | Discounted Cash Flow
Quantitative information about the significant unobservable inputs within Level 3
Servicing asset, significant unobservable input value	0.1194	0.1199

FAIR VALUE MEASUREMENTS - Fair

FAIR VALUE MEASUREMENTS - Fair Values and Carrying Amounts (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial Assets
Marketable equity securities	$ 59,121	$ 56,638
Securities available for sale	1,386,768	1,399,647
Securities held to maturity	375,980	371,224
FHLB bank stock and restricted securities	54,624	77,344
Level 1
Financial Assets
Cash and cash equivalents	167,619	183,189
Trading security	0	0
Marketable equity securities	58,557	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	1,252	734
Level 2
Financial Assets
Cash and cash equivalents	0	0
Trading security	0	0
Marketable equity securities	564	564
Securities available for sale	1,386,768	1,399,647
Securities held to maturity	357,707	353,182
Net loans	0	0
Loans held for sale	141,594	96,233
Accrued interest receivable	37,901	36,879
Cash surrender value of bank-owned life insurance policies	191,768
Derivative assets	41,787	31,727
Financial Liabilities
Total deposits	9,153,374	8,970,321
Short-term debt	861,335	1,118,820
Long-term Federal Home Loan Bank advances	258,583	308,336
Subordinated borrowings	92,897	97,376
Derivative liabilities	43,434	33,239
Level 3
Financial Assets
Cash and cash equivalents	0	0
Trading security	11,164	11,212
Marketable equity securities	0	0
Securities available for sale	0	0
Securities held to maturity	18,273	18,042
Net loans	9,067,915	9,026,442
Loans held for sale	0	0
Accrued interest receivable	0	0
Cash surrender value of bank-owned life insurance policies	0
Derivative assets	6,318	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	167,619	183,189
Trading security	11,164	11,212
Marketable equity securities	59,121	56,638
Securities available for sale	1,386,768	1,399,647
Securities held to maturity	369,331	373,763
FHLB bank stock and restricted securities	54,624	77,344
Net loans	8,885,457	8,981,784
Loans held for sale	141,594	96,233
Accrued interest receivable	37,901	36,879
Cash surrender value of bank-owned life insurance policies	191,768
Derivative assets	48,105	35,654
Financial Liabilities
Total deposits	9,166,415	8,982,381
Short-term debt	861,349	1,118,832
Long-term Federal Home Loan Bank advances	258,840	309,466
Subordinated borrowings	89,562	89,518
Derivative liabilities	44,686	33,973
Fair Value
Financial Assets
Cash and cash equivalents	167,619	183,189
Trading security	11,164	11,212
Marketable equity securities	59,121	56,638
Securities available for sale	1,386,768	1,399,647
Securities held to maturity	375,980	371,224
Net loans	9,067,915	9,026,442
Loans held for sale	141,594	96,233
Accrued interest receivable	37,901	36,879
Cash surrender value of bank-owned life insurance policies	191,768
Derivative assets	48,105	35,654
Financial Liabilities
Total deposits	9,153,374	8,970,321
Short-term debt	861,335	1,118,820
Long-term Federal Home Loan Bank advances	258,583	308,336
Subordinated borrowings	92,897	97,376
Derivative liabilities	$ 44,686	$ 33,973

NET INTEREST INCOME AFTER PRO_3

NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Banking and Thrift, Interest [Abstract]
Net interest income from continuing operations	$ 85,459	$ 84,757
Provision for loan losses	4,001	5,575
Net interest income from continuing operations after provision for loan losses	$ 81,458	$ 79,182

PENDING ACQUISITION (Details)

PENDING ACQUISITION (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2018USD ($)branch
Business Acquisition [Line Items]
Acquisition, restructuring, and other expenses		$ 7,015	$ 5,093
SI Financial Group, Inc.
Business Acquisition [Line Items]
Assets				$ 1,600,000
Number of branch banking offices | branch				23
Acquisition, restructuring, and other expenses		$ 1,600
Scenario, Forecast | SI Financial Group, Inc.
Business Acquisition [Line Items]
Share exchange ratio (in shares)	0.48
Termination fee	$ 7,400

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