Provident Financial Services (PFS) 10-Q 9 Aug 21 2021 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Aug. 02, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-31566
Entity Registrant Name	PROVIDENT FINANCIAL SERVICES, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	42-1547151
Entity Address, Address Line One	239 Washington Street
Entity Address, City or Town	Jersey City
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07302
City Area Code	732
Local Phone Number	590-9200
Title of 12(b) Security	Common
Trading Symbol	PFS
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		77,998,689
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001178970
Current Fiscal Year End Date	--12-31

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 530,663	$ 404,355
Short-term investments	179,490	127,998
Total cash and cash equivalents	710,153	532,353
Available for sale debt securities, at fair value	1,556,613	1,105,489
Held to maturity debt securities	437,704	450,965
Equity securities, at fair value	1,094	971
Federal Home Loan Bank stock	37,415	59,489
Loans	9,539,862	9,822,890
Less allowance for credit losses	80,959	101,466
Net loans	9,458,903	9,721,424
Foreclosed assets, net	2,350	4,475
Banking premises and equipment, net	76,800	75,946
Accrued interest receivable	42,219	46,450
Intangible assets	464,490	466,212
Bank-owned life insurance	236,632	234,607
Other assets	192,582	221,360
Total assets	13,216,955	12,919,741
Deposits:
Demand deposits	8,329,578	7,395,508
Savings deposits	1,418,354	1,348,147
Certificates of deposit of $100,000 or more	421,179	717,216
Other time deposits	420,873	376,958
Total deposits	10,589,984	9,837,829
Mortgage escrow deposits	39,780	34,298
Borrowed funds	693,337	1,175,972
Subordinated debentures	25,211	25,135
Other liabilities	191,009	226,710
Total liabilities	11,539,321	11,299,944
Stockholders’ Equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, none issued	0	0
Common stock, $0.01 par value, 200,000,000 shares authorized, 83,209,012 shares issued and 77,841,528 shares outstanding at June 30, 2021 and 77,611,107 outstanding at December 31, 2020	832	832
Additional paid-in capital	965,470	962,453
Retained earnings	775,235	718,090
Accumulated other comprehensive income	14,082	17,655
Treasury stock	(59,307)	(59,018)
Unallocated common stock held by the Employee Stock Ownership Plan	(18,678)	(20,215)
Common stock acquired by the Directors' Deferred Fee Plan	(4,213)	(4,549)
Deferred Compensation - Directors' Deferred Fee Plan	4,213	4,549
Total stockholders’ equity	1,677,634	1,619,797
Total liabilities and stockholders’ equity	$ 13,216,955	$ 12,919,741

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Held to maturity debt securities	$ 454,241	$ 472,529
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	83,209,012	83,209,012
Common stock, shares outstanding (in shares)	77,841,528	77,611,107

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest income:
Real estate secured loans	$ 62,877	$ 49,297	$ 124,893	$ 103,738
Commercial loans	25,173	18,944	51,316	37,616
Consumer loans	3,412	3,547	6,904	7,719
Available for sale debt securities, equity securities and Federal Home Loan Bank stock	5,722	6,279	11,334	13,348
Held to maturity debt securities	2,700	2,885	5,484	5,825
Deposits, Federal funds sold and other short-term investments	660	585	1,144	1,460
Total interest income	100,544	81,537	201,075	169,706
Interest expense:
Deposits	6,782	7,641	14,199	18,599
Borrowed funds	2,553	4,068	5,362	9,258
Subordinated debt	304	0	609	0
Total interest expense	9,639	11,709	20,170	27,857
Net interest income	90,905	69,828	180,905	141,849
Provision for credit losses	(10,704)	10,900	(25,705)	25,617
Net interest income after provision for credit losses	101,609	58,928	206,610	116,232
Non-interest income:
Fees	8,467	4,914	15,659	11,443
Wealth management income	7,859	5,977	14,993	12,228
Insurance agency income	2,849	0	5,576	0
Bank-owned life insurance	1,523	1,859	4,090	2,646
Net gains on securities transactions	34	44	231	55
Other income	424	1,571	2,244	4,984
Total non-interest income	21,156	14,365	42,793	31,356
Non-interest expense:
Compensation and employee benefits	34,871	29,200	70,183	60,395
Net occupancy expense	7,907	6,166	17,208	12,369
Data processing expense	5,409	4,983	9,802	9,413
FDIC insurance	1,570	768	3,340	768
Amortization of intangibles	918	711	1,890	1,455
Advertising and promotion expense	927	632	1,804	2,001
Credit loss expense for off-balance sheet credit exposures	2,050	5,289	1,175	6,289
Other operating expenses	9,046	7,518	19,149	16,684
Total non-interest expense	62,698	55,267	124,551	109,374
Income before income tax expense	60,067	18,026	124,852	38,214
Income tax expense	15,278	3,715	31,504	8,972
Net income	$ 44,789	$ 14,311	$ 93,348	$ 29,242
Basic earnings per share (usd per share)	$ 0.58	$ 0.22	$ 1.22	$ 0.45
Weighted average basic shares outstanding (in shares)	76,643,546	64,315,547	76,580,364	64,350,790
Diluted earnings per share (usd per share)	$ 0.58	$ 0.22	$ 1.22	$ 0.45
Weighted average diluted shares outstanding (in shares)	76,753,442	64,400,548	76,667,471	64,428,854

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 44,789	$ 14,311	$ 93,348	$ 29,242
Unrealized gains and losses on available for sale debt securities:
Net unrealized gains (losses) arising during the period	2,440	(930)	(6,579)	15,816
Reclassification adjustment for gains included in net income	0	0	(171)	0
Total	2,440	(930)	(6,750)	15,816
Unrealized (losses) gains on derivatives	(1,224)	(1,284)	3,397	(6,997)
Amortization related to post-retirement obligations	(111)	70	(220)	154
Total other comprehensive income (loss)	1,105	(2,144)	(3,573)	8,973
Total comprehensive income	$ 45,894	$ 12,167	$ 89,775	$ 38,215

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	RETAINED EARNINGS	RETAINED EARNINGSCumulative Effect, Period of Adoption, Adjustment	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	TREASURYSTOCK	UNALLOCATED ESOP SHARES	COMMON STOCK ACQUIRED BY DEFERRED COMP PLANS	DEFERRED COMPENSATION PLANS
Beginning Balance at Dec. 31, 2019	$ 1,413,840	$ (8,311)	$ 832	$ 1,007,303	$ 695,273	$ (8,311)	$ 3,821	$ (268,504)	$ (24,885)	$ (3,833)	$ 3,833
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,242				29,242
Other comprehensive loss, net of tax	8,973						8,973
Cash dividends paid	(30,695)				(30,695)
Distributions from DDFP	52			52						335	(335)
Purchases of treasury stock	(6,295)							(6,295)
Purchase of employee restricted shares to fund statutory tax withholding	(961)							(961)
Shares issued dividend reinvestment plan	451			50				401
Allocation of ESOP shares	1,522			(16)					1,538
Allocation of SAP shares	2,495			2,495
Allocation of stock options	94			94
Ending Balance at Jun. 30, 2020	1,410,407		832	1,009,978	685,509		12,794	(275,359)	(23,347)	(3,498)	3,498
Beginning Balance at Mar. 31, 2020	1,412,589		832	1,008,582	686,397		14,938	(274,044)	(24,116)	(3,666)	3,666
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,311				14,311
Other comprehensive loss, net of tax	(2,144)						(2,144)
Cash dividends paid	(15,199)				(15,199)
Distributions from DDFP	15			15						168	(168)
Purchases of treasury stock	(1,310)							(1,310)
Purchase of employee restricted shares to fund statutory tax withholding	(5)							(5)
Allocation of ESOP shares	601			(168)					769
Allocation of SAP shares	1,502			1,502
Allocation of stock options	47			47
Ending Balance at Jun. 30, 2020	1,410,407		832	1,009,978	685,509		12,794	(275,359)	(23,347)	(3,498)	3,498
Beginning Balance at Dec. 31, 2020	1,619,797		832	962,453	718,090		17,655	(59,018)	(20,215)	(4,549)	4,549
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	93,348				93,348
Other comprehensive loss, net of tax	(3,573)						(3,573)
Cash dividends paid	(36,203)				(36,203)
Distributions from DDFP	69			69						336	(336)
Purchases of treasury stock	(48)							(48)
Purchase of employee restricted shares to fund statutory tax withholding	(961)							(961)
Shares issued dividend reinvestment plan	0			0				0
Stock option exercises	638			(82)				720
Allocation of ESOP shares	1,999			462					1,537
Allocation of SAP shares	2,466			2,466
Allocation of stock options	102			102
Ending Balance at Jun. 30, 2021	1,677,634		832	965,470	775,235		14,082	(59,307)	(18,678)	(4,213)	4,213
Beginning Balance at Mar. 31, 2021	1,647,231		832	963,556	748,574		12,977	(59,261)	(19,447)	(4,381)	4,381
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	44,789				44,789
Other comprehensive loss, net of tax	1,105						1,105
Cash dividends paid	(18,128)				(18,128)
Distributions from DDFP	41			41						168	(168)
Purchase of employee restricted shares to fund statutory tax withholding	(46)							(46)
Allocation of ESOP shares	1,086			317					769
Allocation of SAP shares	1,507			1,507
Allocation of stock options	49			49
Ending Balance at Jun. 30, 2021	$ 1,677,634		$ 832	$ 965,470	$ 775,235		$ 14,082	$ (59,307)	$ (18,678)	$ (4,213)	$ 4,213

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income	$ 93,348	$ 29,242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles	6,422	4,910
Provision (benefit) charge for credit losses on loans and securities	(25,705)	25,617
Credit loss expense for off-balance sheet credit exposure	1,175	6,289
Deferred tax expense (benefit)	6,211	(7,531)
Amortization of operating lease right-of-use assets	5,142	4,262
Income on Bank-owned life insurance	(4,090)	(2,646)
Net amortization of premiums and discounts on securities	6,613	4,016
Accretion of net deferred loan fees	(3,436)	(3,709)
Amortization of premiums on purchased loans, net	418	475
Net increase in loans originated for sale	(21,781)	(6,382)
Proceeds from sales of loans originated for sale	22,730	6,938
Proceeds from sales and paydowns of foreclosed assets	1,368	1,843
ESOP expense	1,999	1,552
Allocation of stock award shares	2,466	2,495
Allocation of stock options	102	94
Net gain on sale of loans	(949)	(556)
Net gain on securities transactions	(231)	(55)
Net gain on sale of premises and equipment	(35)	(647)
Net gain on sale of foreclosed assets	(199)	(582)
Increase in accrued interest receivable	(4,231)	(4,778)
Decrease (increase) in other assets	36,729	(93,832)
(Decrease) increase in other liabilities	(35,701)	96,638
Net cash provided by operating activities	88,365	63,653
Cash flows from investing activities:
Proceeds from maturities, calls and paydowns of held to maturity debt securities	29,046	30,713
Purchases of held to maturity debt securities	(16,630)	(17,523)
Proceeds from sales of securities	9,442	0
Proceeds from maturities and paydowns of available for sale debt securities	181,327	148,324
Purchases of available for sale debt securities	(656,314)	(101,619)
Proceeds from redemption of Federal Home Loan Bank stock	24,379	52,959
Purchases of Federal Home Loan Bank stock	(2,305)	(53,541)
BOLI claim benefits received	2,080	4,734
Purchases of loans	(1,500)	0
Net decrease (increase) in loans	287,111	(432,788)
Proceeds from sales of premises and equipment	35	1,412
Purchases of premises and equipment	(5,664)	(3,565)
Net cash used in investing activities	(148,993)	(370,894)
Cash flows from financing activities:
Net increase in deposits	752,155	557,457
Increase in mortgage escrow deposits	5,482	4,156
Cash dividends paid to stockholders	(36,203)	(30,695)
Shares issued dividend reinvestment plan	0	451
Purchase of treasury stock	(48)	(6,295)
Purchase of employee restricted shares to fund statutory tax withholding	(961)	(961)
Stock options exercised	638	0
Proceeds from long-term borrowings	550,000	1,172,553
Payments on long-term borrowings	(1,027,265)	(860,214)
Net decrease in short-term borrowings	(5,370)	(262,196)
Net cash provided by financing activities	238,428	574,256
Net increase in cash and cash equivalents	177,800	267,015
Cash and cash equivalents at beginning of period	532,353	186,748
Cash and cash equivalents at end of period	710,153	453,763
Cash paid during the period for:
Interest on deposits and borrowings	19,962	27,631
Income taxes	18,210	4,835
Non-cash investing activities:
Transfer of loans receivable to foreclosed assets	$ 434	$ 2,516

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies A. Basis of Financial Statement Presentation The accompanying unaudited consolidated financial statements include the accounts of Provident Financial Services, Inc. and its wholly owned subsidiary, Provident Bank (the “Bank,” together with Provident Financial Services, Inc., the “Company”). In preparing the interim unaudited consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated statements of financial condition and the consolidated statements of income for the periods presented. Actual results could differ from these estimates. The allowance for credit losses and the valuation of deferred tax assets are material estimates that are particularly susceptible to near-term change. The interim unaudited consolidated financial statements reflect all normal and recurring adjustments, which are, in the opinion of management, considered necessary for a fair presentation of the financial condition and results of operations for the periods presented. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results of operations that may be expected for all of 2021. Certain information and note disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. These unaudited consolidated financial statements should be read in conjunction with the December 31, 2020 Annual Report to Stockholders on Form 10-K. B. Earnings Per Share The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share calculations for the three and six months ended June 30, 2021 and 2020 (dollars in thousands, except per share amounts): Three months ended June 30, 2021 2020 Net Weighted Per Net Weighted Per Net income $ 44,789 $ 14,311 Basic earnings per share: Income available to common stockholders $ 44,789 76,643,546 $ 0.58 $ 14,311 64,315,547 $ 0.22 Dilutive shares 109,896 85,001 Diluted earnings per share: Income available to common stockholders $ 44,789 76,753,442 $ 0.58 $ 14,311 64,400,548 $ 0.22 Six months ended June 30, 2021 2020 Net Weighted Per Net Weighted Per Net income $ 93,348 $ 29,242 Basic earnings per share: Income available to common stockholders $ 93,348 76,580,364 $ 1.22 $ 29,242 64,350,790 $ 0.45 Dilutive shares 87,107 78,064 Diluted earnings per share: Income available to common stockholders $ 93,348 76,667,471 $ 1.22 $ 29,242 64,428,854 $ 0.45 Anti-dilutive stock options and awards at June 30, 2021 and 2020, totaling 1.0 million shares and 1.2 million shares, respectively, were excluded from the earnings per share calculations. C. Loans Receivable and Allowance for Credit Losses On January 1, 2020, the Company adopted ASU 2016-13, "Measurement of Credit Losses on Financial Instruments,” which replaced the incurred loss methodology with the current expected credit loss methodology (“CECL”). The Company used the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet credit exposures. Results for reporting periods beginning after January 1, 2020 are presented under CECL. Going forward, the impact of utilizing the CECL approach to calculate the allowance for credit losses on loans will be significantly influenced by the composition, characteristics and quality of the Company’s loan portfolio, as well as the prevailing economic conditions and forecast utilized. Material changes to these and other relevant factors may result in greater volatility to the allowance for credit losses, and therefore, greater volatility to the Company’s reported earnings. For the three and six months ended June 30, 2021, the improved economic outlook and the resulting lower allowance requirements led to reductions to the provisions for credit losses and off-balance sheet credit exposures. See Note 4 to the Consolidated Financial Statements for more information on the allowance for credit losses on loans.

Business Combinations

Business Combinations	6 Months Ended
	Jun. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations SB One Bancorp Acquisition On July 31, 2020, the Company completed its acquisition of SB One Bancorp ("SB One"), which added $2.20 billion to total assets, $1.77 billion to total loans and $1.76 billion to total deposits, and 18 full-service banking offices in New Jersey and New York. As part of the acquisition, the addition of SB One Insurance Agency expanded the Company's product offerings to its customers to include an array of commercial and personal insurance products. Under the merger agreement, each share of outstanding SB One common stock was exchanged for 1.357 shares of the Company's common stock. The Company issued 12.8 million shares of common stock from treasury stock, plus cash in lieu of fractional shares in the acquisition of SB One. The total consideration paid for the acquisition of SB One was $180.8 million. In connection with the acquisition, SB One Bank, a wholly owned subsidiary of SB One, was merged with and into Provident Bank, a wholly owned subsidiary of the Company. The acquisition was accounted for under the acquisition method of accounting. Under this method of accounting, the purchase price has been allocated to the respective assets acquired and liabilities assumed based upon their estimated fair values, net of tax. The excess of consideration paid over the estimated fair value of the net assets acquired totaled $22.4 million and was recorded as goodwill. The calculation of goodwill is subject to change for up to one year after the closing date of the transaction as additional information relative to closing date estimates and uncertainties becomes available. It is not anticipated that any material adjustment to the recorded carrying values will be made. The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition from SB One, net of cash consideration paid (in thousands): At July 31, 2020 Assets acquired: Cash and cash equivalents, net $ 78,089 Available for sale debt securities 231,645 Held to maturity debt securities 12,381 Federal Home Loan Bank stock 11,216 Loans 1,766,115 Allowance for credit losses on PCD loans (13,586) Loans, net 1,752,529 Bank-owned life insurance 37,237 Banking premises and equipment 16,620 Accrued interest receivable 8,947 Goodwill 22,439 Other intangibles assets 9,965 Foreclosed assets, net 2,441 Other assets 12,199 Total assets acquired $ 2,195,708 Liabilities assumed: Deposits 1,757,777 Borrowed funds 201,582 Subordinated debentures 25,074 Other liabilities 30,447 Total liabilities assumed $ 2,014,880 Net assets acquired $ 180,828 Fair Value Measurement of Assets Assumed and Liabilities Assumed The methods used to determine the fair value of the assets acquired and liabilities assumed in the SB One acquisition were as follows: Securities Available for Sale The estimated fair values of the available for sale debt securities, primarily comprised of U.S. Government agency mortgage-backed securities and U.S. government agencies and municipal bonds carried on SB One's balance sheet was confirmed using open market pricing provided by multiple independent securities brokers. Management reviewed the open market quotes used in pricing the securities and a fair value adjustment was not recorded on the investments. Held to Maturity Debt Securities The estimated fair values of the held to maturity debt securities, primarily comprised of municipal bonds, were determined using open market pricing provided by multiple independent securities brokers. Management reviewed the open market quotes used in pricing the securities. A fair value premium of $133,000 was recorded on the investments. Loans Loans acquired in the SB One acquisition were recorded at fair value, and there was no carryover related allowance for loan and lease losses. The fair values of loans acquired from SB One were estimated using the discounted cash flow method based on the remaining maturity and repricing terms. Cash flows were adjusted for expected losses and prepayments. Projected cash flows were then discounted to present value based on: the relative risk of the cash flows, taking into account the loan type, liquidity risk, the maturity of the loans, servicing costs, and a required return on capital; and monthly principal and interest cash flows were discounted to present value and summed to arrive at the calculated value of the loans. The fair value of the acquired loans receivable had a gross amortized cost basis of $1.77 billion. For loans acquired without evidence of more-than-insignificant deterioration in credit quality since origination, the Company prepared the interest rate loan fair value and credit fair value adjustments. Loans were grouped into pools based on similar characteristics, such as loan type, fixed or adjustable interest rates, payment type, index rate and caps/floors, and non-accrual status. The loans were valued at the sub-pool level and were pooled at the summary level based on loan type. Market rates for similar loans were obtained from various internal and external data sources and reviewed by management for reasonableness. The average of these market rates was used as the fair value interest rate that a market participant would utilize. A present value approach was utilized to calculate the interest rate fair value premium of $8.4 million. Loans acquired that have experienced more-than-insignificant deterioration in credit quality since origination are considered purchased credit deteriorated (“PCD”) loans. The Company evaluated acquired loans for deterioration in credit quality based on any of, but not limited to, the following: (1) non-accrual status; (2) troubled debt restructured designation; (3) risk ratings of special mention, substandard or doubtful; (4) watchlist credits; and (5) delinquency status, including loans that are current on acquisition date, but had been previously delinquent. At the acquisition date, an estimate of expected credit losses is made for groups of PCD loans with similar risk characteristics and individual PCD loans without similar risk characteristics. Additionally for PCD loans, an allowance for credit losses was calculated using management's best estimate of projected losses over the remaining life of the loans in accordance with ASC 326-20. This represents the portion of the loan balances that has been deemed uncollectible based on the Company’s expectations of future cash flows for each respective PCD loan pool, given the outlook and forecasts inclusive of the impact of the COVID-19 pandemic and related fiscal and regulatory interventions. The expected lifetime losses were calculated using historical losses observed at the Bank, SB One and peer banks. A $13.6 million allowance for credit losses was recorded on PCD loans. The interest rate fair value adjustment related to PCD loans will be substantially recognized as interest income on a level yield amortization or straight line method over the expected life of the loans. Subsequent to the acquisition date, the initial allowance for credit losses on PCD loans will increase or decrease based on future evaluations, with changes recognized in the provision for credit losses. The table below illustrates the fair value adjustments made to the amortized cost basis in order to present a fair value of the loans acquired (in thousands): Gross amortized cost basis at July 31, 2020 $ 1,787,057 Interest rate fair value adjustment on all loans 455 Credit fair value adjustment on non-PCD loans (21,397) Fair value of acquired loans at July 31, 2020 1,766,115 Allowance for credit losses on PCD loans (13,586) Fair value of acquired loans at July 31, 2020 $ 1,752,529 The table below is a summary of the PCD loans accounted for in accordance with ASC 310-26 that were acquired in the SB One acquisition as of the closing date (in thousands): Gross amortized cost basis at July 31, 2020 $ 315,784 Interest component of expected cash flows (accretable difference) (7,988) Allowance for credit losses on PCD loans (13,586) Net PCD loans $ 294,210 Banking Premises and Equipment The Company acquired 18 branches from SB One, eight of which were owned premises. The fair value of properties acquired was derived by valuations prepared by an independent third party utilizing the sales comparison approach to value the property as improved. Core Deposit Intangible and Customer Relationship Intangible The fair value of the core deposit intangible was determined based on a discounted cash flow analysis using a discount rate commensurate with market participants. To calculate cash flows, deposit account servicing costs (net of deposit fee income) and interest expense on deposits were compared to the cost of alternative funding sources available through national brokered CD offering rates. The projected cash flows were developed using projected deposit attrition rates. The fair value of the customer relationship intangible was determined based on a discounted cash flow analysis using the excess of the future cash inflows (i.e., revenue from existing customer relationships) over the related cash outflows (i.e., operating costs) generated over the useful life of the acquired customer base. These cash flows were discounted to present value using an asset-specific risk-adjusted discount rate. The projected cash flows were developed using projected customer revenue retention rates. The core deposit intangible totaled $3.2 million and is being amortized over its estimated useful life of approximately 10 years based on dollar weighted deposit runoff on an annualized basis. The insurance agency customer relationship intangible totaled $6.8 million and is being amortized over its estimated useful life of approximately 13 years based on customer revenue attrition on an annualized basis. Goodwill The calculation of goodwill is subject to change for up to one year after the date of acquisition as additional information relative to the closing date estimates and uncertainties become available. It is not anticipated that any material adjustment to the recorded carrying values will be made. The goodwill will be evaluated annually for impairment. The goodwill is not deductible for tax purpose. Bank Owned Life Insurance ("BOLI") SB One's BOLI cash surrender value was $37.2 million with no fair value adjustment. Time Deposits The fair value adjustment for time deposits represents a discount from the value of the contractual repayments of fixed-maturity deposits using prevailing market interest rates for similar-term time deposits. The time deposit discount of approximately $4.3 million is being amortized into income on a level yield amortization method over the contractual life of the deposits. Borrowings The fair value of Federal Home Loan Bank of New York ("FHLBNY") advances was determined based on a discounted cash flow analysis using a discount rate commensurate with FHLBNY rates as of July 31, 2020. The cash flows of the advances were projected based on the scheduled payments of the fixed rate of each advance. Subordinated Debentures At the valuation date, SB One had one outstanding Trust Preferred and one subordinated debt issuance with an aggregate balance of $27.5 million . The fair value of Trust Preferred and subordinated debt issuances was determined based on a discounted cash flow analysis using a discount rate commensurate with yields and terms of comparable issuances. The cash flows were projected through the remaining contractual term of the Trust Preferred issuance and based on the call date for the subordinated debt issuance.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities At June 30, 2021, the Company had $1.56 billion and $437.7 million in available for sale debt securities and held to maturity debt securities, respectively. Many factors, including lack of liquidity in the secondary market for certain securities, variations in pricing information, regulatory actions, changes in the business environment or any changes in the competitive marketplace could have an adverse effect on the Company’s investment portfolio. The total number of available for sale and held to maturity debt securities in an unrealized loss position at June 30, 2021 totaled 100, compared with 49 at December 31, 2020. The increase in the number of securities in an unrealized loss position at June 30, 2021 was due to higher current market interest rates compared to rates at December 31, 2020. On January 1, 2020, the Company adopted CECL which replaces the incurred loss methodology with an expected loss methodology. The Company did not record an allowance for credit losses on available for sale debt securities as this portfolio consisted primarily of debt securities explicitly or implicitly backed by the U.S. Government for which credit risk is deemed immaterial. The impact going forward will depend on the composition, characteristics, and credit quality of the securities portfolio as well as the economic conditions at future reporting periods. The Company recorded a $70,000 increase to the allowance for credit losses on held to maturity debt securities with a corresponding cumulative effect adjustment to decrease retained earnings by $52,000, net of income taxes. (See Adoption of CECL table below for additional detail.) Management measures expected credit losses on held to maturity debt securities on a collective basis by security type. Management classifies the held to maturity debt securities portfolio into the following security types: • Agency obligations; • Mortgage-backed securities; • State and municipal obligations; and • Corporate obligations. All of the agency obligations held by the Company are issued by U.S. government entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. The majority of the state and municipal, and corporate obligations carry no lower than A ratings from the rating agencies at June 30, 2021 and the Company had two securities rated with a triple-B by Moody’s Investors Service. The Company adopted CECL using the prospective transition approach for debt securities for which other-than-temporary impairment had been recognized prior to January 1, 2020. As a result, the amortized cost basis remains the same before and after the effective date of CECL. Available for Sale Debt Securities The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the fair value for available for sale debt securities at June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 Amortized Gross Gross Fair U.S. Treasury obligations $ 99,437 532 — 99,969 Mortgage-backed securities 1,280,375 23,063 (4,470) 1,298,968 Asset-backed securities 46,653 1,897 — 48,550 State and municipal obligations 69,197 1,198 (32) 70,363 Corporate obligations 38,128 713 (78) 38,763 $ 1,533,790 27,403 (4,580) 1,556,613 December 31, 2020 Amortized Gross Gross Fair Agency obligations $ 1,001 8 — 1,009 Mortgage-backed securities 910,393 28,872 (852) 938,413 Asset-backed securities 52,295 1,535 — 53,830 State and municipal obligations 69,687 1,666 (95) 71,258 Corporate obligations 40,194 809 (24) 40,979 $ 1,073,570 32,890 (971) 1,105,489 The amortized cost and fair value of available for sale debt securities at June 30, 2021, by contractual maturity, are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer. June 30, 2021 Amortized Fair Due in one year or less $ — — Due after one year through five years 56,535 56,813 Due after five years through ten years 84,509 85,494 Due after ten years 65,718 66,788 $ 206,762 209,095 Investments which pay principal on a periodic basis totaling $1.33 billion at amortized cost and $1.35 billion at fair value are excluded from the table above as their expected lives are likely to be shorter than the contractual maturity date due to principal prepayments. For the three months ended June 30, 2021, no securities were sold or called from the available for sale debt securities portfolio. For the six months ended June 30, 2021, proceeds from sales on securities in the available for sale debt securities portfolio totaled $9.4 million, with gains of $230,000 and no loss recognized. For the three and six months ended June 30, 2020, no securities were sold or called from the available for sale debt securities portfolio. The following tables present the fair values and gross unrealized losses for available for sale debt securities in an unrealized loss position at June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 Less than 12 months 12 months or longer Total Fair Gross Fair Gross Fair Gross Mortgage-backed securities $ 480,614 (4,443) 7,268 (27) 487,882 (4,470) State and municipal obligations 11,600 (32) — — 11,600 (32) Corporate obligations 6,795 (78) — — 6,795 (78) $ 499,009 (4,553) 7,268 (27) 506,277 (4,580) December 31, 2020 Less than 12 months 12 months or longer Total Fair value Gross Fair value Gross Fair Gross Mortgage-backed securities $ 127,600 (824) 8,007 (28) 135,607 (852) State and municipal obligations 5,275 (95) — — 5,275 (95) Corporate obligations — — 2,000 (24) 2,000 (24) $ 132,875 (919) 10,007 (52) 142,882 (971) The number of available for sale debt securities in an unrealized loss position at June 30, 2021 totaled 62, compared with 42 at December 31, 2020. The increase in the number of securities in an unrealized loss position at June 30, 2021 was due to higher current market interest rates compared to rates at December 31, 2020. At June 30, 2021, there was one private label mortgage-backed security in an unrealized loss position, with an amortized cost of $17,357 and an unrealized loss of $660. This private-label mortgage-backed security was investment grade at June 30, 2021. Held to Maturity Debt Securities The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the estimated fair value for held to maturity debt securities at June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 Amortized Gross Gross Fair Agency obligations $ 10,198 — (55) 10,143 Mortgage-backed securities 38 1 — 39 State and municipal obligations 417,794 16,824 (302) 434,316 Corporate obligations 9,747 54 (58) 9,743 $ 437,777 16,879 (415) 454,241 At June 30, 2021, the allowance for credit losses on held to maturity debt securities totaled $73,000. December 31, 2020 Amortized Gross Gross Fair Agency obligations $ 7,600 6 (5) 7,601 Mortgage-backed securities 62 2 — 64 State and municipal obligations 433,655 21,442 (58) 455,039 Corporate obligations 9,726 101 (2) 9,825 $ 451,043 21,551 (65) 472,529 At December 31, 2020, the allowance for credit losses on held to maturity debt securities totaled $78,000. The Company generally purchases securities for long-term investment purposes, and differences between amortized cost and fair value may fluctuate during the investment period. There were no sales of securities from the held to maturity debt securities portfolio for the three and six months ended June 30, 2021 and 2020. For the three and six months ended June 30, 2021, proceeds from calls on securities in the held to maturity debt securities portfolio totaled $6.1 million and $12.9 million, respectively. As to these calls of securities, for the three months ended June 30, 2021, there were gross gains of $33,500 and no gross losses, and for the six months ended June 30, 2021, there were gross gains of $1,000 and no gross losses. For the three and six months ended June 30, 2020, proceeds from calls of securities in the held to maturity debt securities portfolio totaled $12.6 million and $25.9 million, respectively. As to these calls of securities, there were gross gains of $44,000 and no gross losses for the three and six months ended June 30, 2020. The amortized cost and fair value of investment securities in the held to maturity debt securities portfolio at June 30, 2021 by contractual maturity are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer. June 30, 2021 Amortized Fair Due in one year or less $ — — Due after one year through five years 154,182 157,762 Due after five years through ten years 213,637 224,366 Due after ten years 69,920 72,074 $ 437,739 454,202 Mortgage-backed securities totaling $38,000 at amortized cost and $39,000 at fair value are excluded from the table above as their expected lives are likely to be shorter than the contractual maturity date due to principal prepayments. Additionally, the allowance for credit losses totaling $73,000 is excluded from the table above. The following table illustrates the impact of the January 1, 2020 adoption of CECL on held to maturity debt securities (in thousands): January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Held to Maturity Debt Securities Allowance for credit losses on corporate securities $ 6 — 6 Allowance for credit losses on municipal securities 64 — 64 Allowance for credit losses on held to maturity debt securities $ 70 — 70 The following tables present the fair values and gross unrealized losses for held to maturity debt securities in an unrealized loss position at June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 Unrealized Losses Less than 12 months 12 months or longer Total Fair Gross Fair Gross Fair Gross Agency obligations $ 7,843 (55) — — 7,843 (55) State and municipal obligations 20,602 (287) 406 (15) 21,008 (302) Corporate obligations 5,773 (58) — — 5,773 (58) $ 34,218 (400) 406 (15) 34,624 (415) December 31, 2020 Unrealized Losses Less than 12 months 12 months or longer Total Fair Gross Fair Gross Fair Gross Agency obligations $ 1,995 (5) — — 1,995 (5) State and municipal obligations 4,846 (41) 406 (17) 5,252 (58) Corporate obligations 786 (2) — — 786 (2) $ 7,627 (48) 406 (17) 8,033 (65) The number of held to maturity debt securities in an unrealized loss position at June 30, 2021 totaled 38, compared with 7 at December 31, 2020. The increase in the number of securities in an unrealized loss position at June 30, 2021, was due to higher current market interest rates compared to rates at December 31, 2020. Credit Quality Indicators. The following table provides the amortized cost of held to maturity debt securities by credit rating as of June 30, 2021 (in thousands): June 30, 2021 Total Portfolio AAA AA A BBB Not Rated Total Agency obligations $ 10,198 — — — — 10,198 Mortgage-backed securities 38 — — — — 38 State and municipal obligations 59,101 306,168 49,426 1,115 1,984 417,794 Corporate obligations — 2,334 7,088 300 25 9,747 $ 69,337 308,502 56,514 1,415 2,009 437,777 December 31, 2020 Total Portfolio AAA AA A BBB Not Rated Total Agency obligations $ 7,600 — — — — 7,600 Mortgage-backed securities 62 — — — — 62 State and municipal obligations 57,830 311,155 53,302 1,115 10,253 433,655 Corporate obligations — 3,255 6,446 — 25 9,726 $ 65,492 314,410 59,748 1,115 10,278 451,043 Credit quality indicators are metrics that provide information regarding the relative credit risk of debt securities. At June 30, 2021, the held to maturity debt securities portfolio was comprised of 16% rated AAA, 70% rated AA, 13% rated A, and less than 1% either below an A rating or not rated by Moody’s Investors Service or Standard and Poor’s. Securities not explicitly rated were grouped where possible under the credit rating of the issuer of the security. At June 30, 2021, the allowance for credit losses on held to maturity debt securities was $73,000, a decrease from $78,000 at December 31, 2020.

Loans Receivable and Allowance

Loans Receivable and Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2021
Receivables [Abstract]
Loans Receivable and Allowance for Credit Losses	Loans Receivable and Allowance for Credit Losses On January 1, 2020, the Company adopted CECL, which replaced the incurred loss methodology with an expected loss methodology. The adoption of the new standard resulted in the Company recording a $7.9 million increase to the allowance for credit losses on loans with a corresponding cumulative effect adjustment to decrease retained earnings by $5.9 million, net of income taxes. (See Adoption of CECL table below for additional detail.) Loans receivable at June 30, 2021 and December 31, 2020 are summarized as follows (in thousands): June 30, 2021 December 31, 2020 Mortgage loans: Residential $ 1,253,824 1,294,702 Commercial 3,571,416 3,458,666 Multi-family 1,361,164 1,484,515 Construction 665,884 541,939 Total mortgage loans 6,852,288 6,779,822 Commercial loans 2,354,199 2,567,470 Consumer loans 348,485 492,566 Total gross loans 9,554,972 9,839,858 Premiums on purchased loans 1,257 1,566 Unearned discounts (6) (12) Net deferred fees (16,361) (18,522) Total loans $ 9,539,862 9,822,890 In the first quarter of 2021, $101.7 million of loans acquired in the SB One transaction that were previously classified as consumer loans were classified as commercial mortgage loans, following further analysis of the underwriting documents and operational intent of the borrower. These loans are comprised of term loans and lines of credit secured by 1-4 family residential properties that are held by borrowers to generate rental income. The following tables summarize the aging of loans receivable by portfolio segment and class of loans (in thousands): June 30, 2021 30-59 Days 60-89 Days Non-accrual Recorded Total Past Current Total Loans Non-accrual loans with no related allowance Mortgage loans: Residential $ 5,410 4,455 6,875 — 16,740 1,237,084 1,253,824 6,875 Commercial 2,109 — 36,312 — 38,421 3,532,995 3,571,416 22,473 Multi-family — — — — — 1,361,164 1,361,164 — Construction — — 2,967 — 2,967 662,917 665,884 2,967 Total mortgage loans 7,519 4,455 46,154 — 58,128 6,794,160 6,852,288 32,315 Commercial loans 660 175 32,023 — 32,858 2,321,341 2,354,199 27,101 Consumer loans 458 1,272 1,883 — 3,613 344,872 348,485 1,639 Total gross loans $ 8,637 5,902 80,060 — 94,599 9,460,373 9,554,972 61,055 December 31, 2020 30-59 Days 60-89 Days Non-accrual Recorded Total Past Current Total Loans Receivable Non-accrual loans with no related allowance Mortgage loans: Residential $ 15,789 8,852 9,315 — 33,956 1,260,746 1,294,702 9,315 Commercial 761 113 31,982 — 32,856 3,425,810 3,458,666 20,482 Multi-family 206 585 — — 791 1,483,724 1,484,515 — Construction — — 1,392 — 1,392 540,547 541,939 1,392 Total mortgage loans 16,756 9,550 42,689 — 68,995 6,710,827 6,779,822 31,189 Commercial loans 1,658 1,179 42,118 — 44,955 2,522,515 2,567,470 15,541 Consumer loans 4,348 4,519 2,283 — 11,150 481,416 492,566 2,283 Total gross loans $ 22,762 15,248 87,090 — 125,100 9,714,758 9,839,858 49,013 Included in loans receivable are loans for which the accrual of interest income has been discontinued due to deterioration in the financial condition of the borrowers. The principal amounts of these non-accrual loans were $80.1 million and $87.1 million at June 30, 2021 and December 31, 2020, respectively. Included in non-accrual loans were $49.1 million and $35.3 million of loans which were less than 90 days past due at June 30, 2021 and December 31, 2020, respectively. There were no loans 90 days or greater past due and still accruing interest at June 30, 2021 and December 31, 2020. Management has elected to measure an allowance for credit losses for accrued interest receivables specifically related to any loan that has been deferred as a result of COVID-19. Generally, accrued interest is written off by reversing interest income during the quarter the loan is moved from an accrual to a non-accrual status. The Company defines an impaired loan as a non-homogeneous loan greater than $1.0 million, for which, based on current information, the Bank does not expect to collect all amounts due under the contractual terms of the loan agreement. Impaired loans also include all loans modified as troubled debt restructurings (“TDRs”). An allowance for collateral-dependent impaired loans that have been modified in a TDR is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s observable market price, or the estimated fair value of the collateral, less any selling costs. The Company uses third-party appraisals to determine the fair value of the underlying collateral in its analysis of collateral-dependent loans. A third-party appraisal is generally ordered as soon as a loan is designated as a collateral-dependent loan and updated annually, or more frequently if required. A financial asset is considered collateral-dependent when the debtor is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. For all classes of loans deemed collateral-dependent, the Company estimates expected credit losses based on the fair value of the collateral less any selling costs. A specific allocation of the allowance for credit losses is established for each collateral-dependent loan with a carrying balance greater than the collateral’s fair value, less estimated selling costs. In most cases, the Company records a partial charge-off to reduce the loan’s carrying value to the collateral’s fair value less estimated selling costs. At each fiscal quarter end, if a loan is designated as collateral-dependent and the third-party appraisal has not yet been received, an evaluation of all available collateral is made using the best information available at the time, including rent rolls, borrower financial statements and tax returns, prior appraisals, management’s knowledge of the market and collateral, and internally prepared collateral valuations based upon market assumptions regarding vacancy and capitalization rates, each as and where applicable. Once the appraisal is received and reviewed, the specific reserves are adjusted to reflect the appraised value and evaluated for charge offs. The Company believes there have been no significant time lapses resulting from this process. At June 30, 2021, there were 168 impaired loans totaling $82.0 million. Included in this total were 113 TDRs related to 109 borrowers totaling $22.0 million that were performing in accordance with their restructured terms and which continued to accrue interest at June 30, 2021. At December 31, 2020, there were 169 impaired loans totaling $86.0 million, of which 135 loans totaling $39.6 million were TDRs. Included in this total were 112 TDRs to 110 borrowers totaling $23.1 million that were performing in accordance with their restructured terms and which continued to accrue interest at December 31, 2020. At June 30, 2021 and December 31, 2020, the Company had $21.7 million and $26.3 million related to the fair value of underlying collateral-dependent impaired loans, respectively. These collateral-dependent impaired loans at June 30, 2021 consisted of $20.0 million in commercial loans, $1.6 million in residential real estate loans, and $81,000 in consumer loans. The collateral for these impaired loans was primarily real estate. The activity in the allowance for credit losses by portfolio segment for the three and six months ended June 30, 2021 and 2020 was as follows (in thousands): Three months ended June 30, Mortgage loans Commercial loans Consumer loans Total 2021 Balance at beginning of period $ 54,198 26,302 5,091 85,591 Provision (benefit) charge to operations 1,080 (10,814) (966) (10,700) Recoveries of loans previously charged-off 191 5,790 198 6,179 Loans charged-off — (16) (95) (111) Balance at end of period $ 55,469 21,262 4,228 80,959 2020 Balance at beginning of period $ 47,500 22,841 4,802 75,143 Provision charge to operations 7,355 2,285 1,260 10,900 Recoveries of loans previously charged-off 16 605 103 724 Loans charged-off — (447) (61) (508) Balance at end of period $ 54,871 25,284 6,104 86,259 Six months ended June 30, Mortgage loans Commercial loans Consumer loans Total 2021 Balance at beginning of period $ 68,307 27,084 6,075 101,466 Provision benefit to operations (12,387) (11,281) (2,032) (25,700) Recoveries of loans previously charged-off 467 6,317 501 7,285 Loans charged-off (918) (858) (316) (2,092) Balance at end of period $ 55,469 21,262 4,228 80,959 2020 Balance at beginning of period $ 25,511 28,263 1,751 55,525 Provision charge to operations 15,066 9,904 630 25,600 Recoveries of loans previously charged-off 108 918 226 1,252 Increase (decrease) due to initial CECL adoption - retained earnings 14,188 (9,974) 3,706 7,920 Loans charged-off (2) (3,827) (209) (4,038) Balance at end of period $ 54,871 25,284 6,104 86,259 As a result of the January 1, 2020 adoption of CECL, the Company recorded a $7.9 million increase to the allowance for credit losses on loans. For the three and six months ended June 30, 2021, the Company recorded negative provisions for credit losses on loans of $10.7 million and $25.7 million, respectively. The decrease in the provision for credit losses for the quarter and six months ended June 30, 2021 was the result of an improved current economic forecast and the resultant favorable impact on expected credit losses, compared with a provision for credit losses for the prior year, which was based upon a weak economic forecast and uncertain outlook attributable to COVID-19. The following table illustrates the impact of the January 1, 2020 adoption of CECL on the allowance for credit losses for the loan portfolio (in thousands): January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Loans Residential $ 8,950 3,414 5,536 Commercial 17,118 12,831 4,287 Multi-family 9,519 3,374 6,145 Construction 4,152 5,892 (1,740) Total mortgage loans 39,739 25,511 14,228 Commercial loans 18,254 28,263 (10,009) Consumer loans 5,452 1,751 3,701 Allowance for credit losses on loans $ 63,445 55,525 7,920 The following tables summarize loans receivable by portfolio segment and impairment method (in thousands): June 30, 2021 Mortgage Commercial Consumer Total Portfolio Individually evaluated for impairment $ 55,390 25,292 1,317 81,999 Collectively evaluated for impairment 6,796,898 2,328,907 347,168 9,472,973 Total gross loans $ 6,852,288 2,354,199 348,485 9,554,972 December 31, 2020 Mortgage Commercial Consumer Total Portfolio Individually evaluated for impairment $ 48,783 35,832 1,431 86,046 Collectively evaluated for impairment 6,731,039 2,531,638 491,135 9,753,812 Total gross loans $ 6,779,822 2,567,470 492,566 9,839,858 The allowance for credit losses is summarized by portfolio segment and impairment classification as follows (in thousands): June 30, 2021 Mortgage Commercial loans Consumer loans Total Individually evaluated for impairment $ 3,433 4,145 35 7,613 Collectively evaluated for impairment 52,036 17,117 4,193 73,346 Total gross loans $ 55,469 21,262 4,228 80,959 December 31, 2020 Mortgage Commercial loans Consumer Total Individually evaluated for impairment $ 4,220 4,715 39 8,974 Collectively evaluated for impairment 64,087 22,369 6,036 92,492 Total gross loans $ 68,307 27,084 6,075 101,466 Loan modifications to borrowers experiencing financial difficulties that are considered TDRs primarily involve lowering the monthly payments on such loans through either a reduction in interest rate below a market rate, an extension of the term of the loan without a corresponding adjustment to the risk premium reflected in the interest rate, or a combination of these two methods. These modifications generally do not result in the forgiveness of principal or accrued interest. In addition, management attempts to obtain additional collateral or guarantor support when modifying such loans. If the borrower has demonstrated performance under the previous terms and our underwriting process shows the borrower has the capacity to continue to perform under the restructured terms, the loan will continue to accrue interest. Non-accruing restructured loans may be returned to accrual status when there has been a sustained period of repayment performance (generally six consecutive months of payments) and both principal and interest are deemed collectible. The following tables present the number of loans modified as TDRs during the three and six months ended June 30, 2021 and 2020, along with their balances immediately prior to the modification date and post-modification as of June 30, 2021 and 2020 (in thousands): For the three months ended June 30, 2021 June 30, 2020 Troubled Debt Restructurings Number of Pre-Modification Post-Modification Number of Pre-Modification Post-Modification Mortgage loans: Residential 1 $ 171 $ 170 1 $ 342 $ 283 Total mortgage loans 1 171 170 1 342 283 Commercial loans 1 1,580 1,089 2 736 714 Total restructured loans 2 $ 1,751 $ 1,259 3 $ 1,078 $ 997 For the six months ended June 30, 2021 June 30, 2020 Troubled Debt Restructurings Number of Pre-Modification Post-Modification Number of Pre-Modification Post-Modification Mortgage loans: Residential 1 $ 171 $ 170 1 $ 342 $ 283 Total mortgage loans 1 171 170 1 342 283 Commercial loans 4 2,940 2,363 4 1,483 1,429 Total restructured loans 5 $ 3,111 $ 2,533 5 $ 1,825 $ 1,712 All TDRs are impaired loans, which are individually evaluated for impairment. During the three months ended June 30, 2021, no charge-offs were recorded on collateral-dependent impaired loans, while $1.5 million of charge-offs were recorded on collateral-dependent impaired loans for the six months ended June 30, 2021. During the three and six months ended June 30, 2020, $447,000 and $3.2 million of charge-offs were recorded on collateral-dependent impaired loans, respectively. For the three and six months ended June 30, 2021, the allowance for credit losses associated with the TDRs presented in the preceding tables totaled $14,000, and was included in the allowance for credit losses for loans individually evaluated for impairment. (See page 26 for further discussion related to COVID-19 loan modifications) For the three and six months ended June 30, 2021, the TDRs presented in the preceding tables had a weighted average modified interest rate of 4.37% and 4.52%, respectively, compared to a weighted average rate of 4.59% and 4.62% prior to modification, for the three and six months ended June 30, 2021, respectively. There were no loans which had a payment default (90 days or more past due) for loans modified as TDRs within the 12 month periods ending June 30, 2021 and June 30, 2020. For TDRs that subsequently default, the Company determines the amount of the allowance for the respective loans in accordance with the accounting policy for the allowance for credit losses on loans individually evaluated for impairment. As allowed by CECL, the Company elected to maintain pools of loans accounted for under ASC 310-30. At December 31, 2020, purchased credit impaired (“PCI”) loans totaled $746,000. In accordance with the CECL standard, management did not reassess whether modifications of individually acquired financial assets accounted for in pools were TDRs as of the date of adoption. Loans considered to be PCI prior to January 1, 2020 were converted to PCD loans on that date. Any additional loans acquired by the Company after January 1, 2020, that experience more-than-insignificant deterioration in credit quality after origination, will be classified as PCD loans. The table below is a summary of the PCD loans accounted for in accordance with ASC 310-26 that were acquired in the SB One acquisition as of the July 31, 2020 closing date (in thousands): Gross amortized cost basis at July 31, 2020 $ 315,784 Interest component of expected cash flows (accretable difference) (7,988) Fair value of PCD loans 307,796 Allowance for credit losses on PCD loans (13,586) Net PCD loans $ 294,210 At June 30, 2021, the balance of PCD loans totaled $264.8 million with a related allowance for credit losses of $11.0 million. The balance of PCD loans at December 31, 2020 was $296.6 million with a related allowance for credit losses of $13.1 million. The following table presents loans individually evaluated for impairment by class and loan category (in thousands): June 30, 2021 December 31, 2020 Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Loans with no related allowance Mortgage loans: Residential $ 12,489 9,832 — 9,923 226 13,981 11,380 — 11,587 511 Commercial 20,500 19,752 — 19,774 48 17,414 17,414 — 16,026 60 Multi-family — — — — — — — — — — Construction 2,200 2,190 — 2,127 23 — — — — — Total 35,189 31,774 — 31,824 297 31,395 28,794 — 27,613 571 Commercial loans 23,131 17,677 — 17,976 11 15,895 14,009 — 12,791 46 Consumer loans 1,433 907 — 918 51 1,382 880 — 7 50 Total impaired loans $ 59,753 50,358 — 50,718 359 48,672 43,683 — 40,411 667 Loans with an allowance recorded Mortgage loans: Residential $ 8,059 7,725 861 7,773 137 7,950 7,506 806 7,604 307 Commercial 18,305 14,727 2,272 15,284 24 14,993 12,483 3,414 123 570 Multi-family 1,164 1,164 300 1,168 32 — — — — — Total 27,528 23,616 3,433 24,225 193 22,943 19,989 4,220 7,727 877 Commercial loans 8,344 7,615 4,145 11,084 218 24,947 21,823 4,715 18,620 311 Consumer loans 416 410 35 413 11 565 551 39 5 20 Total impaired loans $ 36,288 31,641 7,613 35,722 422 48,455 42,363 8,974 26,352 1,208 Total impaired loans Mortgage loans: Residential $ 20,548 17,557 861 17,696 363 21,931 18,886 806 19,191 818 Commercial 38,805 34,479 2,272 35,058 72 32,407 29,897 3,414 16,149 630 Multi-family 1,164 1,164 300 1,168 32 — — — — — Construction 2,200 2,190 — 2,127 23 — — — — — Total 62,717 55,390 3,433 56,049 490 54,338 48,783 4,220 35,340 1,448 Commercial loans 31,475 25,292 4,145 29,060 229 40,842 35,832 4,715 31,411 357 Consumer loans 1,849 1,317 35 1,331 62 1,947 1,431 39 12 70 Total impaired loans $ 96,041 81,999 7,613 86,440 781 97,127 86,046 8,974 66,763 1,875 Specific allocations of the allowance for credit losses attributable to impaired loans totaled $7.6 million at June 30, 2021 and $9.0 million at December 31, 2020. At June 30, 2021 and December 31, 2020, impaired loans for which there was no related allowance for credit losses totaled $50.4 million and $43.7 million, respectively. The average balance of impaired loans for the six months ended June 30, 2021 and December 31, 2020 was $86.4 million and $66.8 million, respectively. Management utilizes an internal nine-point risk rating system to summarize its loan portfolio into categories with similar risk characteristics. Loans deemed to be “acceptable quality” are rated 1 through 4, with a rating of 1 established for loans with minimal risk. Loans that are deemed to be of “questionable quality” are rated 5 (watch) or 6 (special mention). Loans with adverse classifications (substandard, doubtful or loss) are rated 7, 8 or 9, respectively. Commercial mortgage, commercial, multi-family and construction loans are rated individually, and each lending officer is responsible for risk rating loans in their portfolio. These risk ratings are then reviewed by the department manager and/or the Chief Lending Officer and by the Credit Department. The risk ratings are also confirmed through periodic loan review examinations which are currently performed by an independent third-party. Reports by the independent third-party are presented directly to the Audit Committee of the Board of Directors. In response to COVID-19 and its adverse economic impact on both our commercial and retail borrowers, the Company implemented a modification program to defer principal or principal and interest payments for borrowers directly impacted by the pandemic and who were not more than 30 days past due as of December 31, 2019, all in accordance with the Coronavirus Aid, Relief, and Economic Security ("CARES") Act. Loans granted COVID-19 related deferrals or modifications have decreased from a peak level of $1.31 billion, or 16.8% of loans, to $7.3 million of loans as of July 16, 2021, all of which are performing loans. The $7.3 million of loans in deferral consists of $300,000 in a second 90-day deferral period and $7.0 million in a third deferral period. Included in the $7.3 million of total loans in deferral, $3.9 million are secured by hotels, $2.1 million are secured by restaurants, $463,000 is secured by a special-purpose property, $431,000 are secured by retail properties, and $359,000 are secured by residential mortgages. Of the $6.9 million in commercial loans on deferral, all are under principal only deferral and are paying interest. In accordance with the CARES Act, the Company has elected to not apply troubled debt restructuring classification to any COVID-19 related loan modifications that were performed after March 1, 2020 to borrowers who were current as of December 31, 2019. Accordingly, these modifications are not classified as TDRs. In addition, the Company participated in the Paycheck Protection Program (“PPP”) through the United States Department of the Treasury and Small Business Administration ("SBA"). As of June 30, 2021, the Company secured 2,066 PPP loans for its customers totaling $681.9 million, which includes both the initial round and the second round of PPP. As of June 30, 2021, 1,082 PPP loans totaling $372.5 million were forgiven. The balance at June 30, 2021 for PPP loans was $309.4 million. The PPP loans are fully guaranteed by the SBA and may be eligible for forgiveness by the SBA to the extent that the proceeds are used to cover eligible payroll costs, interest costs, rent, and utility costs over a period of up to 24 weeks after the loan was made as long as certain conditions are met regarding employee retention and compensation levels. PPP loans deemed eligible for forgiveness by the SBA will be repaid by the SBA to the Company. PPP loans are included in the commercial loan portfolio. The following table summarizes the Company's gross loans held for investment by year of origination and internally assigned credit grades (in thousands): At June 30, 2021 Total portfolio Residential Commercial mortgage Multi-family Construction Total Commercial Consumer Total Loans (1) Special mention $ 4,000 112,331 8,825 26,034 151,190 101,830 1,223 254,243 Substandard 14,461 91,640 2,598 2,967 111,666 121,959 1,914 235,539 Doubtful — 335 — — 335 5 — 340 Loss — — — — — — — — Total criticized and classified 18,461 204,306 11,423 29,001 263,191 223,794 3,137 490,122 Pass/Watch 1,235,363 3,367,110 1,349,741 636,883 6,589,097 2,130,405 345,348 9,064,850 Total $ 1,253,824 3,571,416 1,361,164 665,884 6,852,288 2,354,199 348,485 9,554,972 2021 Special mention $ — — — — — — — — Substandard (2) — — — — — 8,598 — 8,598 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified — — — — — 8,598 — 8,598 Pass/Watch 155,340 219,812 51,777 44,724 471,653 397,753 23,799 893,205 Total gross loans $ 155,340 219,812 51,777 44,724 471,653 406,351 23,799 901,803 2020 Special mention $ — — — 1,980 1,980 313 — 2,293 Substandard — — — — — 2,127 — 2,127 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified — — — 1,980 1,980 2,440 — 4,420 Pass/Watch 252,991 635,144 294,274 144,186 1,326,595 398,800 36,515 1,761,910 Total gross loans $ 252,991 635,144 294,274 146,166 1,328,575 401,240 36,515 1,766,330 2019 Special mention $ 658 28,711 676 16,819 46,864 6,195 — 53,059 Substandard 479 515 1,164 — 2,158 11,001 91 13,250 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 1,137 29,226 1,840 16,819 49,022 17,196 91 66,309 Pass/Watch 134,657 622,561 176,107 288,843 1,222,168 225,881 41,893 1,489,942 Total gross loans $ 135,794 651,787 177,947 305,662 1,271,190 243,077 41,984 1,556,251 2018 Special mention $ — 8,866 — — 8,866 2,996 175 12,037 Substandard 1,700 27,787 — 2,967 32,454 8,741 — 41,195 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 1,700 36,653 — 2,967 41,320 11,737 175 53,232 Pass/Watch 75,279 379,166 193,344 139,215 787,004 216,999 38,375 1,042,378 Total gross loans $ 76,979 415,819 193,344 142,182 828,324 228,736 38,550 1,095,610 2017 and prior Special mention $ 3,342 74,754 8,149 7,235 93,480 92,326 1,047 186,853 Substandard 12,282 63,338 1,434 — 77,054 91,492 1,824 170,370 Doubtful — 335 — — 335 5 — 340 Loss — — — — — — — — Total criticized and classified 15,624 138,427 9,583 7,235 170,869 183,823 2,871 357,563 Pass/Watch 617,096 1,510,427 634,239 19,915 2,781,677 890,972 204,766 3,877,415 Total gross loans $ 632,720 1,648,854 643,822 27,150 2,952,546 1,074,795 207,637 4,234,978 At December 31, 2020 Residential Commercial mortgage Multi-family Construction Total Commercial Consumer Total loans Special mention $ 2,882 124,631 29,781 24,376 181,670 157,080 1,867 340,617 Substandard 26,651 98,313 1,568 4,924 131,456 127,092 6,746 265,294 Doubtful — — — — — 52 — 52 Loss — — — — — — — — Total criticized and classified 29,533 222,944 31,349 29,300 313,126 284,224 8,613 605,963 Pass/Watch 1,265,169 3,235,722 1,453,166 512,639 6,466,696 2,283,246 483,953 9,233,895 Total $ 1,294,702 3,458,666 1,484,515 541,939 6,779,822 2,567,470 492,566 9,839,858 (1) Contained within criticized and classified loans at June 30, 2021 are loans that were granted payment deferrals related to COVID-19 totaling $7.3 million. (2) Includes an $8.5 million restructured loan, initially originated in 2015, which is classified as substandard pending the borrower’s ability to demonstrate a sustained period of payment performance (generally six

Deposits

Deposits	6 Months Ended
	Jun. 30, 2021
Banking and Thrift, Other Disclosures [Abstract]
Deposits	Deposits Deposits at June 30, 2021 and December 31, 2020 are summarized as follows (in thousands): June 30, 2021 December 31, 2020 Savings $ 1,418,354 1,348,147 Money market 2,413,046 2,245,412 NOW 3,386,064 2,808,637 Non-interest bearing 2,530,468 2,341,459 Certificates of deposit 842,052 1,094,174 Total deposits $ 10,589,984 9,837,829

Components of Net Periodic Bene

Components of Net Periodic Benefit Cost	6 Months Ended
	Jun. 30, 2021
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost	Components of Net Periodic Benefit Cost The Bank has a noncontributory defined benefit pension plan covering its full-time employees who had attained age 21 with at least one year of service as of April 1, 2003. The pension plan was frozen on April 1, 2003. All participants in the Plan are 100% vested. The pension plan’s assets are invested in investment funds and group annuity contracts currently managed by the Principal Financial Group and Allmerica Financial. In addition to pension benefits, certain health care and life insurance benefits are currently made available to certain of the Bank’s retired employees. The costs of such benefits are accrued based on actuarial assumptions from the date of hire to the date the employee is fully eligible to receive the benefits. Effective January 1, 2003, eligibility for retiree health care benefits was frozen as to new entrants, and benefits were eliminated for employees with less than ten years of service as of December 31, 2002. Effective January 1, 2007, eligibility for retiree life insurance benefits was frozen as to new entrants and retiree life insurance benefits were eliminated for employees with less than ten years of service as of December 31, 2006. Net periodic (benefit) increase cost for pension benefits and other post-retirement benefits for the three and six months ended June 30, 2021 and 2020 includes the following components (in thousands): Three months ended June 30, Six months ended June 30, Pension benefits Other post-retirement benefits Pension benefits Other post-retirement benefits 2021 2020 2021 2020 2021 2020 2021 2020 Service cost $ — — 9 20 $ — — 18 40 Interest cost 198 250 106 178 396 500 212 356 Expected return on plan assets (807) (737) — — (1,614) (1,474) — — Amortization of prior service cost — — — — — — — — Amortization of the net loss (gain) 118 174 (268) (62) 236 348 (536) (124) Net periodic (decrease) increase in benefit cost $ (491) (313) (153) 136 $ (982) (626) (306) 272 In its consolidated financial statements for the year ended December 31, 2020, the Company previously disclosed that it does not expect to contribute to the pension plan in 2021. As of June 30, 2021, no contributions have been made to the pension plan.

Impact of Recent Accounting Pro

Impact of Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2021
Accounting Changes and Error Corrections [Abstract]
Impact of Recent Accounting Pronouncements	Impact of Recent Accounting Pronouncements Accounting Pronouncements Not Yet Adopted ASU 2020-04, "Reference Rate Reform (Topic 848)" ("ASU 2020-04") provides optional expedients and exceptions for applying GAAP to loan and lease agreements, derivative contracts, and other transactions affected by the anticipated transition away from LIBOR toward new interest rate benchmarks. For transactions that are modified because of reference rate reform and that meet certain scope guidance (i) modifications of loan agreements should be accounted for by prospectively adjusting the effective interest rate and the modification will be considered "minor" so that any existing unamortized origination fees/costs would carry forward and continue to be amortized and (ii) modifications of lease agreements should be accounted for as a continuation of the existing agreement with no reassessments of the lease classification and the discount rate or re-measurements of lease payments that otherwise would be required for modifications not accounted for as separate contracts. ASU 2020-04 also provides numerous optional expedients for derivative accounting. ASU 2020-04 is effective March 12, 2020 through December 31, 2022. An entity may elect to apply ASU 2020-04 for contract modifications as of January 1, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. Once elected for a Topic or an Industry Subtopic within the Codification, the amendments in this ASU must be applied prospectively for all eligible contract modifications for that Topic or Industry Subtopic. The Company anticipates this ASU will simplify any modifications we execute between the selected start date (yet to be determined) and December 31, 2022 that are directly related to LIBOR transition by allowing prospective recognition of the continuation of the contract, rather than the extinguishment of the old contract resulting in writing off unamortized fees/costs. The Company is evaluating the impacts of this ASU and have not yet determined whether LIBOR transition and this ASU will have a material effect on the Company's business operations and consolidated financial statements.

Allowance for Credit Losses on

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures	6 Months Ended
	Jun. 30, 2021
Credit Loss [Abstract]
Allowance for Credit Losses on Off-Balance Sheet Credit Exposures	Allowance for Credit Losses on Off-Balance Sheet Credit Exposures On January 1, 2020, the Company adopted CECL, which replaced the incurred loss methodology with an expected loss methodology. This new methodology applies to off-balance sheet credit exposures, including loan commitments and lines of credit. The adoption of this new standard resulted in the Company recording a $3.2 million increase to the allowance for credit losses on off-balance sheet credit exposures with a corresponding cumulative effect adjustment to decrease retained earnings $2.4 million, net of income taxes. Management analyzes the Company's exposure to credit losses for both on-balance sheet and off-balance sheet activity using a consistent methodology for the quantitative framework as well as the qualitative framework. For purposes of estimating the allowance for credit losses for off-balance sheet credit exposures, the exposure at default includes an estimated drawdown of unused credit based on historical credit utilization factors and current loss factors, resulting in a proportionate amount of expected credit losses. The following table illustrates the impact of the January 1, 2020 adoption of CECL on off-balance sheet credit exposures: January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Liabilities Allowance for credit losses on off-balance sheet credit exposure $ 3,206 — 3,206 For the three and six months ended June 30, 2021, the Company recorded a $2.1 million and $1.2 million provision for credit losses for off-balance sheet credit exposures, respectively. The provision for credit losses on off-balance sheet credit exposures for the three and six months ended June 30, 2020 totaled $5.3 million and $6.3 million, respectively. The decrease was primarily a function of an improved economic forecast resulting in a decline in projected loss factors, partially offset by an increase in the pipeline of loans that have been approved and awaiting closing. The allowance for credit losses for off-balance sheet credit exposures was $6.2 million and $5.0 million at June 30, 2021 and December 31, 2020, respectively, and are included in other liabilities on the Consolidated Statements of Financial Condition.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The determination of fair values of financial instruments often requires the use of estimates. Where quoted market values in an active market are not readily available, Management utilizes various valuation techniques to estimate fair value. Fair value is an estimate of the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. However, in many instances fair value estimates may not be substantiated by comparison to independent markets and may not be realized in an immediate sale of the financial instrument. GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are as follows: Level 1: Unadjusted quoted market prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2: Quoted prices in markets that are not active, or inputs that are observable either directly or indirectly, for substantially the full term of the asset or liability; and Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The valuation techniques are based upon the unpaid principal balance only, and exclude any accrued interest or dividends at the measurement date. Interest income and expense and dividend income are recorded within the consolidated statements of income depending on the nature of the instrument using the effective interest method based on acquired discount or premium. Assets and Liabilities Measured at Fair Value on a Recurring Basis The valuation techniques described below were used to measure fair value of financial instruments in the table below on a recurring basis as of June 30, 2021 and December 31, 2020. Available for Sale Debt Securities, at Fair Value For available for sale debt securities, fair value was estimated using a market approach. The majority of the Company’s securities are fixed income instruments that are not quoted on an exchange, but are traded in active markets. Prices for these instruments are obtained through third-party data service providers or dealer market participants with whom the Company has historically transacted both purchases and sales of securities. Prices obtained from these sources include market quotations and matrix pricing. Matrix pricing, a Level 2 input, is a mathematical technique used principally to value certain securities to benchmark to comparable securities. The Company evaluates the quality of Level 2 matrix pricing through comparison to similar assets with greater liquidity and evaluation of projected cash flows. As Management is responsible for the determination of fair value, it performs quarterly analyses on the prices received from the pricing service to determine whether the prices are reasonable estimates of fair value. Specifically, Management compares the prices received from the pricing service to a secondary pricing source. Additionally, Management compares changes in the reported market values and returns to relevant market indices to test the reasonableness of the reported prices. The Company’s internal price verification procedures and review of fair value methodology documentation provided by independent pricing services has generally not resulted in an adjustment in the prices obtained from the pricing service. Equity Securities, at Fair Value The Company holds equity securities that are traded in active markets with readily accessible quoted market prices that are considered Level 1 inputs. Derivatives The Company records all derivatives on the statements of financial condition at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. The Company has interest rate derivatives resulting from a service provided to certain qualified borrowers in a loan related transaction which, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. As such, all changes in fair value of the Company’s derivatives are recognized directly in earnings. The Company also uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges, and which satisfy hedge accounting requirements, involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. These derivatives were used to hedge the variable cash outflows associated with FHLBNY borrowings and brokered demand deposits. The change in the fair value of these derivatives is recorded in accumulated other comprehensive income, and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The fair value of the Company's derivatives is determined using discounted cash flow analysis using observable market-based inputs, which are considered Level 2 inputs. Assets Measured at Fair Value on a Non-Recurring Basis The valuation techniques described below were used to estimate fair value of financial instruments measured on a non-recurring basis as of June 30, 2021 and December 31, 2020. Collateral-Dependent Impaired Loans For loans measured for impairment based on the fair value of the underlying collateral, fair value was estimated using a market approach. The Company measures the fair value of collateral underlying impaired loans primarily through obtaining independent appraisals that rely upon quoted market prices for similar assets in active markets. These appraisals include adjustments, on an individual case-by-case basis, to comparable assets based on the appraisers’ market knowledge and experience, as well as adjustments for estimated costs to sell between 5% and 10%. Management classifies these loans as Level 3 within the fair value hierarchy. Foreclosed Assets Assets acquired through foreclosure or deed in lieu of foreclosure are carried at fair value, less estimated selling costs, which range between 5% and 10%. Fair value is generally based on independent appraisals that rely upon quoted market prices for similar assets in active markets. These appraisals include adjustments, on an individual case basis, to comparable assets based on the appraisers’ market knowledge and experience, and are classified as Level 3. When an asset is acquired, the excess of the loan balance over fair value less estimated selling costs is charged to the allowance for credit losses. A reserve for foreclosed assets may be established to provide for possible write-downs and selling costs that occur subsequent to foreclosure. Foreclosed assets are carried net of the related reserve. Operating results from real estate owned, including rental income, operating expenses, and gains and losses realized from the sales of real estate owned, are recorded as incurred. There were no changes to the valuation techniques for fair value measurements as of June 30, 2021 and December 31, 2020. The following tables present the assets and liabilities reported on the consolidated statements of financial condition at their fair values as of June 30, 2021 and December 31, 2020, by level within the fair value hierarchy (in thousands): Fair Value Measurements at Reporting Date Using: June 30, 2021 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Measured on a recurring basis: Available for sale debt securities: U.S. Treasury obligations $ 99,969 99,969 — — Mortgage-backed securities 1,298,968 — 1,298,968 — Asset-backed securities 48,550 — 48,550 — State and municipal obligations 70,363 — 70,363 — Corporate obligations 38,763 — 38,763 — Total available for sale debt securities 1,556,613 99,969 1,456,644 — Equity securities 1,094 1,094 — — Derivative assets 81,459 — 81,459 — $ 1,639,166 101,063 1,538,103 — Derivative liabilities $ 84,827 — 84,827 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 21,706 — — 21,706 Foreclosed assets 2,350 — — 2,350 $ 24,056 — — 24,056 Fair Value Measurements at Reporting Date Using: December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Measured on a recurring basis: Available for sale debt securities: Agency obligations $ 1,009 1,009 — — Mortgage-backed securities 938,413 — 938,413 — Asset-backed securities 53,830 — 53,830 — State and municipal obligations 71,258 — 71,258 — Corporate obligations 40,979 — 40,979 — Total available for sale debt securities 1,105,489 1,009 1,104,480 — Equity Securities 971 971 — — Derivative assets 101,079 — 101,079 — $ 1,207,539 1,980 1,205,559 — Derivative liabilities $ 109,148 — 109,148 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 26,250 — — 26,250 Foreclosed assets 4,475 — — 4,475 $ 30,725 — — 30,725 There were no transfers between Level 1, Level 2 and Level 3 during the three and six months ended June 30, 2021. Other Fair Value Disclosures The Company is required to disclose estimated fair value of financial instruments, both assets and liabilities on and off the balance sheet, for which it is practicable to estimate fair value. The following is a description of valuation methodologies used for those assets and liabilities. Cash and Cash Equivalents For cash and due from banks, federal funds sold and short-term investments, the carrying amount approximates fair value. Included in cash and cash equivalents at June 30, 2021 and December 31, 2020 was $58.4 million and $114.3 million, respectively, representing cash collateral pledged to secure loan level swaps and reserves required by banking regulations. Held to Maturity Debt Securities For held to maturity debt securities, fair value was estimated using a market approach. The majority of the Company’s securities are fixed income instruments that are not quoted on an exchange, but are traded in active markets. Prices for these instruments are obtained through third party data service providers or dealer market participants with whom the Company has historically transacted both purchases and sales of securities. Prices obtained from these sources include market quotations and matrix pricing. Matrix pricing, a Level 2 input, is a mathematical technique used principally to value certain securities to benchmark to comparable securities. Management evaluates the quality of Level 2 matrix pricing through comparison to similar assets with greater liquidity and evaluation of projected cash flows. As management is responsible for the determination of fair value, it performs quarterly analyses on the prices received from the pricing service to determine whether the prices are reasonable estimates of fair value. Specifically, management compares the prices received from the pricing service to a secondary pricing source. Additionally, management compares changes in the reported market values and returns to relevant market indices to test the reasonableness of the reported prices. The Company’s internal price verification procedures and review of fair value methodology documentation provided by independent pricing services has generally not resulted in adjustment in the prices obtained from the pricing service. The Company also holds debt instruments issued by the U.S. government and U.S. government agencies that are traded in active markets with readily accessible quoted market prices that are considered Level 1 within the fair value hierarchy. Federal Home Loan Bank of New York ("FHLBNY") Stock The carrying value of FHLBNY stock is its cost. The fair value of FHLBNY stock is based on redemption at par value. The Company classifies the estimated fair value as Level 1 within the fair value hierarchy. Loans Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as commercial mortgage, residential mortgage, commercial, construction and consumer. Each loan category is further segmented into fixed and adjustable rate interest terms and into performing and non-performing categories. The fair value of performing loans was estimated using a combination of techniques, including a discounted cash flow model that utilizes a discount rate that reflects the Company’s current pricing for loans with similar characteristics and remaining maturity, adjusted by an amount for estimated credit losses inherent in the portfolio at the balance sheet date (i.e. exit pricing). The rates take into account the expected yield curve, as well as an adjustment for prepayment risk, when applicable. The Company classifies the estimated fair value of its loan portfolio as Level 3. The fair value for significant non-performing loans was based on recent external appraisals of collateral securing such loans, adjusted for the timing of anticipated cash flows. The Company classifies the estimated fair value of its non-performing loan portfolio as Level 3. Deposits The fair value of deposits with no stated maturity, such as non-interest bearing demand deposits and savings deposits, was equal to the amount payable on demand and classified as Level 1. The estimated fair value of certificates of deposit was based on the discounted value of contractual cash flows. The discount rate was estimated using the Company’s current rates offered for deposits with similar remaining maturities. The Company classifies the estimated fair value of its certificates of deposit portfolio as Level 2. Borrowed Funds The fair value of borrowed funds was estimated by discounting future cash flows using rates available for debt with similar terms and maturities and is classified by the Company as Level 2 within the fair value hierarchy. Commitments to Extend Credit and Letters of Credit The fair value of commitments to extend credit and letters of credit was estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. Limitations Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on- and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Significant assets and liabilities that are not considered financial assets or liabilities include goodwill and other intangibles, deferred tax assets and premises and equipment. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates. The following tables present the Company’s financial instruments at their carrying and fair values as of June 30, 2021 and December 31, 2020. Fair values are presented by level within the fair value hierarchy. Fair Value Measurements at June 30, 2021 Using: (Dollars in thousands) Carrying value Fair value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 710,153 710,153 710,153 — — Available for sale debt securities: U.S. Treasury obligations 99,969 99,969 99,969 — — Agency obligations — — — — — Mortgage-backed securities 1,298,968 1,298,968 — 1,298,968 — Asset-backed securities 48,550 48,550 48,550 State and municipal obligations 70,363 70,363 — 70,363 — Corporate obligations 38,763 38,763 — 38,763 — Total available for sale debt securities $ 1,556,613 1,556,613 99,969 1,456,644 — Held to maturity debt securities, net of allowance for credit losses: Agency obligations 10,198 10,143 10,143 — — Mortgage-backed securities 38 39 — 39 — State and municipal obligations 417,739 434,316 — 434,316 — Corporate obligations 9,729 9,743 — 9,743 — Total held to maturity debt securities, net of allowance for credit losses $ 437,704 454,241 10,143 444,098 — FHLBNY stock 37,415 37,415 37,415 — — Equity Securities 1,094 1,094 1,094 — — Loans, net of allowance for credit losses 9,458,903 9,623,991 — — 9,623,991 Derivative assets 81,459 81,459 — 81,459 — Financial liabilities: Deposits other than certificates of deposits $ 9,747,932 9,747,932 9,747,932 — — Certificates of deposit 842,052 845,410 — 845,410 — Total deposits $ 10,589,984 10,593,342 9,747,932 845,410 — Borrowings 693,337 697,982 — 697,982 — Subordinated debentures 25,211 30,088 — 30,088 — Derivative liabilities 84,827 84,827 — 84,827 — Fair Value Measurements at December 31, 2020 Using: (Dollars in thousands) Carrying value Fair value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 532,353 532,353 532,353 — — Available for sale debt securities: U.S. Treasury obligations — — — — Agency obligations 1,009 1,009 1,009 — — Mortgage-backed securities 938,413 938,413 — 938,413 — Asset-backed securities 53,830 53,830 53,830 State and municipal obligations 71,258 71,258 — 71,258 — Corporate obligations 40,979 40,979 — 40,979 — Total available for sale debt securities $ 1,105,489 1,105,489 1,009 1,104,480 — Held to maturity debt securities: Agency obligations $ 7,600 7,601 7,601 — — Mortgage-backed securities 62 64 — 64 — State and municipal obligations 433,589 455,039 — 455,039 — Corporate obligations 9,714 9,825 — 9,825 — Total held to maturity debt securities $ 450,965 472,529 7,601 464,928 — FHLBNY stock 59,489 59,489 59,489 — — Equity Securities 971 971 971 — — Loans, net of allowance for credit losses 9,721,424 9,969,330 — — 9,969,330 Derivative assets 101,079 101,079 — 101,079 — Financial liabilities: Deposits other than certificates of deposits $ 8,743,655 8,743,655 8,743,655 — — Certificates of deposit 1,094,174 1,097,993 — 1,097,993 — Total deposits $ 9,837,829 9,841,648 8,743,655 1,097,993 — Borrowings 1,175,972 1,193,024 — 1,193,024 — Subordinated Debt 25,135 24,375 — 24,375 — Derivative liabilities 109,148 109,148 — 109,148 —

Other Comprehensive Income

Other Comprehensive Income	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
Other Comprehensive Income	Other Comprehensive Income The following table presents the components of other comprehensive income, both gross and net of tax, for the three and six months ended June 30, 2021 and 2020 (in thousands): Three months ended June 30, 2021 2020 Before Tax After Before Tax After Components of Other Comprehensive Income: Unrealized gains and losses on available for sale debt securities: Net unrealized (losses) gains arising during the period $ 3,288 (848) 2,440 (1,252) 322 (930) Reclassification adjustment for gains included in net income — — — — — — Total 3,288 (848) 2,440 (1,252) 322 (930) Unrealized losses on derivatives (cash flow hedges) (1,649) 425 (1,224) (1,730) 446 (1,284) Amortization related to post-retirement obligations (150) 39 (111) 95 (25) 70 Total other comprehensive income (loss) $ 1,489 (384) 1,105 (2,887) 743 (2,144) Six months ended June 30, 2021 2020 Before Tax After Before Tax After Components of Other Comprehensive Income: Unrealized gains and losses on available for sale debt securities: Net unrealized (losses) gains arising during the period $ (8,865) 2,286 (6,579) 21,310 (5,494) 15,816 Reclassification adjustment for gains included in net income (230) 59 (171) — — — Total (9,095) 2,345 (6,750) 21,310 (5,494) 15,816 Unrealized gains ( losses) on derivatives (cash flow hedges) 4,577 (1,180) 3,397 (9,427) 2,430 (6,997) Amortization related to post-retirement obligations (300) 80 (220) 207 (53) 154 Total other comprehensive (loss) income $ (4,818) 1,245 (3,573) 12,090 (3,117) 8,973 The following tables present the changes in the components of accumulated other comprehensive income, net of tax, for the three and six months ended June 30, 2021 and 2020 (in thousands): Changes in Accumulated Other Comprehensive Income (Loss) by Component, net of tax 2021 2020 Unrealized Post- Retirement Unrealized (Losses) Gains on Derivatives (cash flow hedges) Accumulated Unrealized Gains on Post- Retirement Unrealized Gains (Losses) on Derivatives (cash flow hedges) Accumulated Balance at $ 14,500 (1,190) (333) 12,977 25,492 (5,156) (5,398) 14,938 Current - period other comprehensive income (loss) 2,440 (111) (1,224) 1,105 (930) 70 (1,284) (2,144) Balance at $ 16,940 (1,301) (1,557) 14,082 24,562 (5,086) (6,682) 12,794 Changes in Accumulated Other Comprehensive Income (Loss) by Component, net of tax 2021 2020 Unrealized Post- Retirement Unrealized (Losses) Gains on Derivatives (cash flow hedges) Accumulated Unrealized Gains (Losses) on Post- Retirement Unrealized Gains (Losses) on Derivatives (cash flow hedges) Accumulated Balance at December 31, $ 23,690 (1,081) (4,954) 17,655 8,746 (5,240) 315 3,821 Current - period other comprehensive (loss) income (6,750) (220) 3,397 (3,573) 15,816 154 (6,997) 8,973 Balance at $ 16,940 (1,301) (1,557) 14,082 24,562 (5,086) (6,682) 12,794 The following tables summarize the reclassifications from accumulated other comprehensive income (loss) to the consolidated statements of income for the three and six months ended June 30, 2021 and 2020 (in thousands): Reclassifications From Accumulated Other Comprehensive Amount reclassified from AOCI for the three months ended June 30, Affected line item in the Consolidated 2021 2020 Details of AOCI: Post-retirement obligations: Amortization of actuarial (losses) gains $ (150) 112 Compensation and employee benefits (1) 39 (29) Income tax expense Total reclassification $ (111) 83 Net of tax Reclassifications From Accumulated Other Comprehensive Amount reclassified from AOCI for the six months ended June 30, Affected line item in the Consolidated 2021 2020 Details of AOCI: Available for sale debt securities: Realized net gains on the sale of securities available for sale $ (230) — Net gain on securities transactions 59 — Income tax expense (171) — Net of tax Post-retirement obligations: Amortization of actuarial (losses) gains $ (300) 224 Compensation and employee benefits (1) 80 (58) Income tax expense Total reclassification $ (220) 166 Net of tax (1) This item is included in the computation of net periodic benefit cost. See Note 6. Components of Net Periodic Benefit Cost.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative and Hedging Activities	Derivative and Hedging Activities The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through the management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of its assets and liabilities. Non-designated Hedges. Derivatives not designated in qualifying hedging relationships are not speculative and result from a service the Company provides to certain qualified commercial borrowers in loan related transactions which, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. The Company may execute interest rate swaps with qualified commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting interest rate swaps that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. The interest rate swap agreement which the Company executes with the commercial borrower is collateralized by the borrower's commercial real estate financed by the Company. As the Company has not elected to apply hedge accounting and these interest rate swaps do not meet the hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings. At June 30, 2021 and December 31, 2020, the Company had 170 and 172 loan related interest rate swaps, respectively, with aggregate notional amounts of $2.55 billion and $2.63 billion, respectively. The Company periodically enters into risk participation agreements ("RPAs"), with the Company functioning as either the lead institution, or as a participant when another company is the lead institution on a commercial loan. These RPAs are entered into to manage the credit exposure on interest rate contracts associated with these loan participation agreements. Under the RPAs, the Company will either receive or make a payment in the event the borrower defaults on the related interest rate contract. The Company has minimum collateral posting thresholds with certain of its risk participation counterparties, and has posted collateral of $650,000 against the potential risk of default by the borrower under these agreements. At June 30, 2021 and December 31, 2020, the Company had 13 credit derivatives, with aggregate notional amounts of $136.4 million and $121.7 million, respectively, from participations in interest rate swaps as part of these loan participation arrangements. At June 30, 2021 and December 31, 2020, the fair value of these credit derivatives were $131,000 and $97,000, respectively. Cash Flow Hedges of Interest Rate Risk. The Company’s objective in using interest rate derivatives is to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable payment amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Changes in the fair value of derivatives designated and that qualify as cash flow hedges of interest rate risk are recorded in accumulated other comprehensive income and are subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. During the three and six months ended June 30, 2021 and 2020, such derivatives were used to hedge the variable cash outflows associated with borrowings and brokered demand deposits. Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s borrowings or demand deposits. During the next twelve months, the Company estimates that $3.5 million will be reclassified as an increase to interest expense. As of June 30, 2021, the Company had 14 outstanding interest rate derivatives with an aggregate notional amount of $600.0 million that were each designated as a cash flow hedge of interest rate risk. The tables below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statements of Financial Condition at June 30, 2021 and December 31, 2020 (in thousands): At June 30, 2021 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Consolidated Statements of Financial Condition Fair Derivatives not designated as a hedging instrument: Interest rate products Other assets $ 76,310 Other liabilities 77,716 Credit contracts Other assets 131 Other liabilities — Total derivatives not designated as a hedging instrument $ 76,441 77,716 Derivatives designated as a hedging instrument: Interest rate products Other assets $ 5,018 Other liabilities 7,111 Total derivatives designated as a hedging instrument $ 5,018 7,111 At December 31, 2020 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Consolidated Statements of Financial Condition Fair Derivatives not designated as a hedging instrument: Interest rate products Other assets $ 107,652 Other liabilities 109,148 Credit contracts Other assets 97 Other liabilities — Total derivatives not designated as a hedging instrument $ 107,749 109,148 Derivatives designated as a hedging instrument: Interest rate products Other assets $ (6,671) Other liabilities — Total derivatives designated as a hedging instrument $ (6,671) — The tables below present the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income during the three and six months ended June 30, 2021 and 2020 (in thousands). Gain (loss) recognized in income on derivatives for the three months ended Consolidated Statements of Income June 30, 2021 June 30, 2020 Derivatives not designated as a hedging instrument: Interest rate products Other income $ (323) (229) Credit contracts Other income 24 — Total $ (299) (229) Derivatives designated as a hedging instrument: Interest rate products Interest expense $ 947 126 Total $ 947 126 Gain (loss) recognized in income on derivatives for the six months ended Consolidated Statements of Income June 30, 2021 June 30, 2020 Derivatives not designated as a hedging instrument: Interest rate products Other income $ 77 (1,049) Credit contracts Other income 47 (1) Total $ 124 (1,050) Derivatives designated as a hedging instrument: Interest rate products Interest expense $ 1,826 21 Total $ 1,826 21 The Company has agreements with certain of its dealer counterparties which contain a provision that if the Company defaults on any of its indebtedness, including a default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be deemed in default on its derivative obligations. In addition, the Company has agreements with certain of its dealer counterparties which contain a provision that if the Company fails to maintain its status as a well or adequately capitalized institution, then the counterparty could terminate the derivative positions and the Company would be required to settle its obligations under the agreements. At June 30, 2021, the Company had four dealer counterparties. The Company had a net liability position with respect to all four of the counterparties. The termination value for this net liability position, which includes accrued interest, was $59.5 million at June 30, 2021. The Company has minimum collateral posting thresholds with certain of its derivative counterparties, and has posted collateral of $57.8 million against its obligations under these agreements. If the Company had breached any of these provisions at June 30, 2021, it could have been required to settle its obligations under the agreements at the termination value.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The Company generates revenue from several business channels. The guidance in ASU 2014-09, Revenue from Contracts with Customers (Topic 606) does not apply to revenue associated with financial instruments, including interest income on loans and investments, which comprise the majority of the Company's revenue. For the three months and six months ended June 30, 2021, the out-of-scope revenue related to financial instruments was 82.6% and 82.5% of the Company's total revenue, respectively, compared to 85.0% and 84.4% for the three and six months ended June 30, 2020, respectively. Revenue-generating activities that are within the scope of Topic 606, are components of non-interest income. These revenue streams are generally classified into three categories: wealth management revenue, insurance agency income and banking service charges and other fees. The following table presents non-interest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the three and six months ended June 30, 2021 and 2020 (in thousands): Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Non-interest income In-scope of Topic 606: Wealth management fees $ 7,859 5,977 14,993 12,228 Insurance agency income 2,849 — 5,576 — Banking service charges and other fees: Service charges on deposit accounts 2,555 2,071 5,054 5,047 Debit card and ATM fees 2,098 1,265 3,876 2,475 Total banking service charges and other fees 4,653 3,336 8,930 7,522 Total in-scope non-interest income 15,361 9,313 29,499 19,750 Total out-of-scope non-interest income 5,795 5,052 13,294 11,606 Total non-interest income $ 21,156 14,365 42,793 31,356 Wealth management fee income represents fees earned from customers as consideration for asset management, investment advisory and trust services. The Company’s performance obligation is generally satisfied monthly and the resulting fees are recognized monthly. The fee is generally based upon the average market value of the assets under management ("AUM") for the month and the applicable fee rate. The monthly accrual of wealth management fees is recorded in other assets on the Company's Consolidated Statements of Financial Condition. Fees are received from the customer on a monthly basis. The Company does not earn performance-based incentives. To a lesser extent, optional services such as tax return preparation and estate settlement are also available to existing customers. The Company’s performance obligation for these transaction-based services are generally satisfied, and related revenue recognized, at either a point in time when the service is completed, or in the case of estate settlement, over a relatively short period of time, as each service component is completed. Insurance agency income, consisting of commissions and fees, is generally recognized as of the effective date of the insurance policy. Commission revenues related to installment billings are recognized on the invoice date. Subsequent commission adjustments are recognized upon the receipt of notification from insurance companies concerning matters necessitating such adjustments. Profit-sharing contingent commissions are recognized when determinable, which is generally when such commissions are received from insurance companies, or when the Company receives formal notification of the amount of such payments. Service charges on deposit accounts include overdraft service fees, account analysis fees and other deposit related fees. These fees are generally transaction-based, or time-based services. The Company's performance obligation for these services are generally satisfied, and revenue recognized, at the time the transaction is completed, or the service rendered. Fees for these services are generally received from the customer either at the time of transaction, or monthly. Debit card and ATM fees are generally transaction-based. Debit card revenue is primarily comprised of interchange fees earned when a customer's Company card is processed through a card payment network. ATM fees are largely generated when a Company cardholder uses a non-Company ATM, or a non-Company cardholder uses a Company ATM. The Company's performance obligation for these services is satisfied when the service is rendered. Payment is generally received at the time of transaction or monthly. Out-of-scope non-interest income primarily consists of Bank-owned life insurance and net fees on loan level interest rate swaps, along with gains and losses on the sale of loans and foreclosed real estate, loan prepayment fees and loan servicing fees. None of these revenue streams are subject to the requirements of Topic 606.

Leases

Leases	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Leases	LeasesThe following table represents the consolidated statements of financial condition classification of the Company’s right-of use-assets and lease liabilities at June 30, 2021 and December 31, 2020 (in thousands): Classification June 30, 2021 December 31, 2020 Lease Right-of-Use Assets: Operating lease right-of-use assets Other assets $ 40,372 $ 41,142 Lease Liabilities: Operating lease liabilities Other liabilities $ 41,523 $ 42,042 The calculated amount of the right-of-use assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the right-of-use asset and lease liability. Generally, the Company considers the first renewal option to be reasonably certain and includes it in the calculation of the right-of use asset and lease liability. Regarding the discount rate, Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception based upon the term of the lease. For operating leases existing prior to January 1, 2019, the rate for the remaining lease term as of January 1, 2019 was applied. All of the leases in which the Company is the lessee are classified as operating leases and are primarily comprised of real estate properties for branches and administrative offices with terms extending through 2040. At June 30, 2021, the weighted-average remaining lease term and the weighted-average discount rate for the Company's operating leases were 8.8 years and 3.09%, respectively. The following tables represent lease costs and other lease information for the Company's operating leases. The variable lease cost primarily represents variable payments such as common area maintenance and utilities (in thousands): Three months ended June 30, 2021 Three months ended June 30, 2020 Lease Costs Operating lease cost $ 2,330 $ 2,132 Variable lease cost 717 724 Total lease cost $ 3,047 $ 2,856 Six months ended June 30, 2021 Six months ended June 30, 2020 Lease Costs Operating lease cost $ 5,142 $ 4,262 Variable lease cost 1,519 1,330 Total lease cost $ 6,661 $ 5,592 Cash paid for amounts included in the measurement of lease liabilities: Six months ended June 30, 2021 Six months ended June 30, 2020 Operating cash flows from operating leases $ 4,575 $ 4,247 Future minimum payments for operating leases with initial or remaining terms of one year or more as of June 30, 2021, were as follows (in thousands): Operating leases Twelve months ended: Remainder of 2021 $ 4,347 2022 6,613 2023 6,102 2024 5,700 2025 5,114 Thereafter 20,120 Total future minimum lease payments 47,996 Amounts representing interest 6,473 Present value of net future minimum lease payments $ 41,523
Leases	LeasesThe following table represents the consolidated statements of financial condition classification of the Company’s right-of use-assets and lease liabilities at June 30, 2021 and December 31, 2020 (in thousands): Classification June 30, 2021 December 31, 2020 Lease Right-of-Use Assets: Operating lease right-of-use assets Other assets $ 40,372 $ 41,142 Lease Liabilities: Operating lease liabilities Other liabilities $ 41,523 $ 42,042 The calculated amount of the right-of-use assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the right-of-use asset and lease liability. Generally, the Company considers the first renewal option to be reasonably certain and includes it in the calculation of the right-of use asset and lease liability. Regarding the discount rate, Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception based upon the term of the lease. For operating leases existing prior to January 1, 2019, the rate for the remaining lease term as of January 1, 2019 was applied. All of the leases in which the Company is the lessee are classified as operating leases and are primarily comprised of real estate properties for branches and administrative offices with terms extending through 2040. At June 30, 2021, the weighted-average remaining lease term and the weighted-average discount rate for the Company's operating leases were 8.8 years and 3.09%, respectively. The following tables represent lease costs and other lease information for the Company's operating leases. The variable lease cost primarily represents variable payments such as common area maintenance and utilities (in thousands): Three months ended June 30, 2021 Three months ended June 30, 2020 Lease Costs Operating lease cost $ 2,330 $ 2,132 Variable lease cost 717 724 Total lease cost $ 3,047 $ 2,856 Six months ended June 30, 2021 Six months ended June 30, 2020 Lease Costs Operating lease cost $ 5,142 $ 4,262 Variable lease cost 1,519 1,330 Total lease cost $ 6,661 $ 5,592 Cash paid for amounts included in the measurement of lease liabilities: Six months ended June 30, 2021 Six months ended June 30, 2020 Operating cash flows from operating leases $ 4,575 $ 4,247 Future minimum payments for operating leases with initial or remaining terms of one year or more as of June 30, 2021, were as follows (in thousands): Operating leases Twelve months ended: Remainder of 2021 $ 4,347 2022 6,613 2023 6,102 2024 5,700 2025 5,114 Thereafter 20,120 Total future minimum lease payments 47,996 Amounts representing interest 6,473 Present value of net future minimum lease payments $ 41,523

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Basis of Financial Statement Presentation	Basis of Financial Statement Presentation The accompanying unaudited consolidated financial statements include the accounts of Provident Financial Services, Inc. and its wholly owned subsidiary, Provident Bank (the “Bank,” together with Provident Financial Services, Inc., the “Company”). In preparing the interim unaudited consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated statements of financial condition and the consolidated statements of income for the periods presented. Actual results could differ from these estimates. The allowance for credit losses and the valuation of deferred tax assets are material estimates that are particularly susceptible to near-term change. The interim unaudited consolidated financial statements reflect all normal and recurring adjustments, which are, in the opinion of management, considered necessary for a fair presentation of the financial condition and results of operations for the periods presented. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results of operations that may be expected for all of 2021.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share Calculations	The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share calculations for the three and six months ended June 30, 2021 and 2020 (dollars in thousands, except per share amounts): Three months ended June 30, 2021 2020 Net Weighted Per Net Weighted Per Net income $ 44,789 $ 14,311 Basic earnings per share: Income available to common stockholders $ 44,789 76,643,546 $ 0.58 $ 14,311 64,315,547 $ 0.22 Dilutive shares 109,896 85,001 Diluted earnings per share: Income available to common stockholders $ 44,789 76,753,442 $ 0.58 $ 14,311 64,400,548 $ 0.22 Six months ended June 30, 2021 2020 Net Weighted Per Net Weighted Per Net income $ 93,348 $ 29,242 Basic earnings per share: Income available to common stockholders $ 93,348 76,580,364 $ 1.22 $ 29,242 64,350,790 $ 0.45 Dilutive shares 87,107 78,064 Diluted earnings per share: Income available to common stockholders $ 93,348 76,667,471 $ 1.22 $ 29,242 64,428,854 $ 0.45

Business Combinations (Tables)

Business Combinations (Tables)	6 Months Ended
	Jun. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Schedule of Estimated Fair Vales of Assets and Liabilities Assumed	The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition from SB One, net of cash consideration paid (in thousands): At July 31, 2020 Assets acquired: Cash and cash equivalents, net $ 78,089 Available for sale debt securities 231,645 Held to maturity debt securities 12,381 Federal Home Loan Bank stock 11,216 Loans 1,766,115 Allowance for credit losses on PCD loans (13,586) Loans, net 1,752,529 Bank-owned life insurance 37,237 Banking premises and equipment 16,620 Accrued interest receivable 8,947 Goodwill 22,439 Other intangibles assets 9,965 Foreclosed assets, net 2,441 Other assets 12,199 Total assets acquired $ 2,195,708 Liabilities assumed: Deposits 1,757,777 Borrowed funds 201,582 Subordinated debentures 25,074 Other liabilities 30,447 Total liabilities assumed $ 2,014,880 Net assets acquired $ 180,828
Schedule of Fair Value of Loans Acquired in Acquisition	The table below illustrates the fair value adjustments made to the amortized cost basis in order to present a fair value of the loans acquired (in thousands): Gross amortized cost basis at July 31, 2020 $ 1,787,057 Interest rate fair value adjustment on all loans 455 Credit fair value adjustment on non-PCD loans (21,397) Fair value of acquired loans at July 31, 2020 1,766,115 Allowance for credit losses on PCD loans (13,586) Fair value of acquired loans at July 31, 2020 $ 1,752,529 The table below is a summary of the PCD loans accounted for in accordance with ASC 310-26 that were acquired in the SB One acquisition as of the closing date (in thousands): Gross amortized cost basis at July 31, 2020 $ 315,784 Interest component of expected cash flows (accretable difference) (7,988) Allowance for credit losses on PCD loans (13,586) Net PCD loans $ 294,210 The table below is a summary of the PCD loans accounted for in accordance with ASC 310-26 that were acquired in the SB One acquisition as of the July 31, 2020 closing date (in thousands): Gross amortized cost basis at July 31, 2020 $ 315,784 Interest component of expected cash flows (accretable difference) (7,988) Fair value of PCD loans 307,796 Allowance for credit losses on PCD loans (13,586) Net PCD loans $ 294,210

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2021
Fair Value, Option, Quantitative Disclosures [Line Items]
Securities Available for Sale	The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the fair value for available for sale debt securities at June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 Amortized Gross Gross Fair U.S. Treasury obligations $ 99,437 532 — 99,969 Mortgage-backed securities 1,280,375 23,063 (4,470) 1,298,968 Asset-backed securities 46,653 1,897 — 48,550 State and municipal obligations 69,197 1,198 (32) 70,363 Corporate obligations 38,128 713 (78) 38,763 $ 1,533,790 27,403 (4,580) 1,556,613 December 31, 2020 Amortized Gross Gross Fair Agency obligations $ 1,001 8 — 1,009 Mortgage-backed securities 910,393 28,872 (852) 938,413 Asset-backed securities 52,295 1,535 — 53,830 State and municipal obligations 69,687 1,666 (95) 71,258 Corporate obligations 40,194 809 (24) 40,979 $ 1,073,570 32,890 (971) 1,105,489
Available for sale Debt Securities with Temporary Impairment	The following tables present the fair values and gross unrealized losses for available for sale debt securities in an unrealized loss position at June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 Less than 12 months 12 months or longer Total Fair Gross Fair Gross Fair Gross Mortgage-backed securities $ 480,614 (4,443) 7,268 (27) 487,882 (4,470) State and municipal obligations 11,600 (32) — — 11,600 (32) Corporate obligations 6,795 (78) — — 6,795 (78) $ 499,009 (4,553) 7,268 (27) 506,277 (4,580) December 31, 2020 Less than 12 months 12 months or longer Total Fair value Gross Fair value Gross Fair Gross Mortgage-backed securities $ 127,600 (824) 8,007 (28) 135,607 (852) State and municipal obligations 5,275 (95) — — 5,275 (95) Corporate obligations — — 2,000 (24) 2,000 (24) $ 132,875 (919) 10,007 (52) 142,882 (971)
Investment Securities Held to Maturity	The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the estimated fair value for held to maturity debt securities at June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 Amortized Gross Gross Fair Agency obligations $ 10,198 — (55) 10,143 Mortgage-backed securities 38 1 — 39 State and municipal obligations 417,794 16,824 (302) 434,316 Corporate obligations 9,747 54 (58) 9,743 $ 437,777 16,879 (415) 454,241 At June 30, 2021, the allowance for credit losses on held to maturity debt securities totaled $73,000. December 31, 2020 Amortized Gross Gross Fair Agency obligations $ 7,600 6 (5) 7,601 Mortgage-backed securities 62 2 — 64 State and municipal obligations 433,655 21,442 (58) 455,039 Corporate obligations 9,726 101 (2) 9,825 $ 451,043 21,551 (65) 472,529
Schedule of Impact of ASC 326	The following table illustrates the impact of the January 1, 2020 adoption of CECL on held to maturity debt securities (in thousands): January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Held to Maturity Debt Securities Allowance for credit losses on corporate securities $ 6 — 6 Allowance for credit losses on municipal securities 64 — 64 Allowance for credit losses on held to maturity debt securities $ 70 — 70 The following table illustrates the impact of the January 1, 2020 adoption of CECL on the allowance for credit losses for the loan portfolio (in thousands): January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Loans Residential $ 8,950 3,414 5,536 Commercial 17,118 12,831 4,287 Multi-family 9,519 3,374 6,145 Construction 4,152 5,892 (1,740) Total mortgage loans 39,739 25,511 14,228 Commercial loans 18,254 28,263 (10,009) Consumer loans 5,452 1,751 3,701 Allowance for credit losses on loans $ 63,445 55,525 7,920 The following table illustrates the impact of the January 1, 2020 adoption of CECL on off-balance sheet credit exposures: January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Liabilities Allowance for credit losses on off-balance sheet credit exposure $ 3,206 — 3,206
Schedule of Unrealized Loss on Investments	The following tables present the fair values and gross unrealized losses for held to maturity debt securities in an unrealized loss position at June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 Unrealized Losses Less than 12 months 12 months or longer Total Fair Gross Fair Gross Fair Gross Agency obligations $ 7,843 (55) — — 7,843 (55) State and municipal obligations 20,602 (287) 406 (15) 21,008 (302) Corporate obligations 5,773 (58) — — 5,773 (58) $ 34,218 (400) 406 (15) 34,624 (415) December 31, 2020 Unrealized Losses Less than 12 months 12 months or longer Total Fair Gross Fair Gross Fair Gross Agency obligations $ 1,995 (5) — — 1,995 (5) State and municipal obligations 4,846 (41) 406 (17) 5,252 (58) Corporate obligations 786 (2) — — 786 (2) $ 7,627 (48) 406 (17) 8,033 (65)
Amortized Cost of held To Maturity Debt Securities by Year of Originations and Credit Rating	Credit Quality Indicators. The following table provides the amortized cost of held to maturity debt securities by credit rating as of June 30, 2021 (in thousands): June 30, 2021 Total Portfolio AAA AA A BBB Not Rated Total Agency obligations $ 10,198 — — — — 10,198 Mortgage-backed securities 38 — — — — 38 State and municipal obligations 59,101 306,168 49,426 1,115 1,984 417,794 Corporate obligations — 2,334 7,088 300 25 9,747 $ 69,337 308,502 56,514 1,415 2,009 437,777 December 31, 2020 Total Portfolio AAA AA A BBB Not Rated Total Agency obligations $ 7,600 — — — — 7,600 Mortgage-backed securities 62 — — — — 62 State and municipal obligations 57,830 311,155 53,302 1,115 10,253 433,655 Corporate obligations — 3,255 6,446 — 25 9,726 $ 65,492 314,410 59,748 1,115 10,278 451,043
Available-for-sale Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Investment Securities Classified by Contractual Maturity	The amortized cost and fair value of available for sale debt securities at June 30, 2021, by contractual maturity, are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer. June 30, 2021 Amortized Fair Due in one year or less $ — — Due after one year through five years 56,535 56,813 Due after five years through ten years 84,509 85,494 Due after ten years 65,718 66,788 $ 206,762 209,095
Held-to-maturity Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Investment Securities Classified by Contractual Maturity	The amortized cost and fair value of investment securities in the held to maturity debt securities portfolio at June 30, 2021 by contractual maturity are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer. June 30, 2021 Amortized Fair Due in one year or less $ — — Due after one year through five years 154,182 157,762 Due after five years through ten years 213,637 224,366 Due after ten years 69,920 72,074 $ 437,739 454,202

Loans Receivable and Allowanc_2

Loans Receivable and Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2021
Receivables [Abstract]
Schedule of Summarized Loans Receivable	Loans receivable at June 30, 2021 and December 31, 2020 are summarized as follows (in thousands): June 30, 2021 December 31, 2020 Mortgage loans: Residential $ 1,253,824 1,294,702 Commercial 3,571,416 3,458,666 Multi-family 1,361,164 1,484,515 Construction 665,884 541,939 Total mortgage loans 6,852,288 6,779,822 Commercial loans 2,354,199 2,567,470 Consumer loans 348,485 492,566 Total gross loans 9,554,972 9,839,858 Premiums on purchased loans 1,257 1,566 Unearned discounts (6) (12) Net deferred fees (16,361) (18,522) Total loans $ 9,539,862 9,822,890
Summary of Aging Loans Receivable by Portfolio Segment and Class	The following tables summarize the aging of loans receivable by portfolio segment and class of loans (in thousands): June 30, 2021 30-59 Days 60-89 Days Non-accrual Recorded Total Past Current Total Loans Non-accrual loans with no related allowance Mortgage loans: Residential $ 5,410 4,455 6,875 — 16,740 1,237,084 1,253,824 6,875 Commercial 2,109 — 36,312 — 38,421 3,532,995 3,571,416 22,473 Multi-family — — — — — 1,361,164 1,361,164 — Construction — — 2,967 — 2,967 662,917 665,884 2,967 Total mortgage loans 7,519 4,455 46,154 — 58,128 6,794,160 6,852,288 32,315 Commercial loans 660 175 32,023 — 32,858 2,321,341 2,354,199 27,101 Consumer loans 458 1,272 1,883 — 3,613 344,872 348,485 1,639 Total gross loans $ 8,637 5,902 80,060 — 94,599 9,460,373 9,554,972 61,055 December 31, 2020 30-59 Days 60-89 Days Non-accrual Recorded Total Past Current Total Loans Receivable Non-accrual loans with no related allowance Mortgage loans: Residential $ 15,789 8,852 9,315 — 33,956 1,260,746 1,294,702 9,315 Commercial 761 113 31,982 — 32,856 3,425,810 3,458,666 20,482 Multi-family 206 585 — — 791 1,483,724 1,484,515 — Construction — — 1,392 — 1,392 540,547 541,939 1,392 Total mortgage loans 16,756 9,550 42,689 — 68,995 6,710,827 6,779,822 31,189 Commercial loans 1,658 1,179 42,118 — 44,955 2,522,515 2,567,470 15,541 Consumer loans 4,348 4,519 2,283 — 11,150 481,416 492,566 2,283 Total gross loans $ 22,762 15,248 87,090 — 125,100 9,714,758 9,839,858 49,013
Summary of Allowance for Loan Losses by Portfolio Segment and Impairment Classification	The activity in the allowance for credit losses by portfolio segment for the three and six months ended June 30, 2021 and 2020 was as follows (in thousands): Three months ended June 30, Mortgage loans Commercial loans Consumer loans Total 2021 Balance at beginning of period $ 54,198 26,302 5,091 85,591 Provision (benefit) charge to operations 1,080 (10,814) (966) (10,700) Recoveries of loans previously charged-off 191 5,790 198 6,179 Loans charged-off — (16) (95) (111) Balance at end of period $ 55,469 21,262 4,228 80,959 2020 Balance at beginning of period $ 47,500 22,841 4,802 75,143 Provision charge to operations 7,355 2,285 1,260 10,900 Recoveries of loans previously charged-off 16 605 103 724 Loans charged-off — (447) (61) (508) Balance at end of period $ 54,871 25,284 6,104 86,259 Six months ended June 30, Mortgage loans Commercial loans Consumer loans Total 2021 Balance at beginning of period $ 68,307 27,084 6,075 101,466 Provision benefit to operations (12,387) (11,281) (2,032) (25,700) Recoveries of loans previously charged-off 467 6,317 501 7,285 Loans charged-off (918) (858) (316) (2,092) Balance at end of period $ 55,469 21,262 4,228 80,959 2020 Balance at beginning of period $ 25,511 28,263 1,751 55,525 Provision charge to operations 15,066 9,904 630 25,600 Recoveries of loans previously charged-off 108 918 226 1,252 Increase (decrease) due to initial CECL adoption - retained earnings 14,188 (9,974) 3,706 7,920 Loans charged-off (2) (3,827) (209) (4,038) Balance at end of period $ 54,871 25,284 6,104 86,259 The allowance for credit losses is summarized by portfolio segment and impairment classification as follows (in thousands): June 30, 2021 Mortgage Commercial loans Consumer loans Total Individually evaluated for impairment $ 3,433 4,145 35 7,613 Collectively evaluated for impairment 52,036 17,117 4,193 73,346 Total gross loans $ 55,469 21,262 4,228 80,959 December 31, 2020 Mortgage Commercial loans Consumer Total Individually evaluated for impairment $ 4,220 4,715 39 8,974 Collectively evaluated for impairment 64,087 22,369 6,036 92,492 Total gross loans $ 68,307 27,084 6,075 101,466
Schedule of Impact of ASC 326	The following table illustrates the impact of the January 1, 2020 adoption of CECL on held to maturity debt securities (in thousands): January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Held to Maturity Debt Securities Allowance for credit losses on corporate securities $ 6 — 6 Allowance for credit losses on municipal securities 64 — 64 Allowance for credit losses on held to maturity debt securities $ 70 — 70 The following table illustrates the impact of the January 1, 2020 adoption of CECL on the allowance for credit losses for the loan portfolio (in thousands): January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Loans Residential $ 8,950 3,414 5,536 Commercial 17,118 12,831 4,287 Multi-family 9,519 3,374 6,145 Construction 4,152 5,892 (1,740) Total mortgage loans 39,739 25,511 14,228 Commercial loans 18,254 28,263 (10,009) Consumer loans 5,452 1,751 3,701 Allowance for credit losses on loans $ 63,445 55,525 7,920 The following table illustrates the impact of the January 1, 2020 adoption of CECL on off-balance sheet credit exposures: January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Liabilities Allowance for credit losses on off-balance sheet credit exposure $ 3,206 — 3,206
Summary of Loans Receivable by Portfolio Segment and Impairment Method	The following tables summarize loans receivable by portfolio segment and impairment method (in thousands): June 30, 2021 Mortgage Commercial Consumer Total Portfolio Individually evaluated for impairment $ 55,390 25,292 1,317 81,999 Collectively evaluated for impairment 6,796,898 2,328,907 347,168 9,472,973 Total gross loans $ 6,852,288 2,354,199 348,485 9,554,972 December 31, 2020 Mortgage Commercial Consumer Total Portfolio Individually evaluated for impairment $ 48,783 35,832 1,431 86,046 Collectively evaluated for impairment 6,731,039 2,531,638 491,135 9,753,812 Total gross loans $ 6,779,822 2,567,470 492,566 9,839,858
Schedule of Troubled Debt Restructuring	The following tables present the number of loans modified as TDRs during the three and six months ended June 30, 2021 and 2020, along with their balances immediately prior to the modification date and post-modification as of June 30, 2021 and 2020 (in thousands): For the three months ended June 30, 2021 June 30, 2020 Troubled Debt Restructurings Number of Pre-Modification Post-Modification Number of Pre-Modification Post-Modification Mortgage loans: Residential 1 $ 171 $ 170 1 $ 342 $ 283 Total mortgage loans 1 171 170 1 342 283 Commercial loans 1 1,580 1,089 2 736 714 Total restructured loans 2 $ 1,751 $ 1,259 3 $ 1,078 $ 997 For the six months ended June 30, 2021 June 30, 2020 Troubled Debt Restructurings Number of Pre-Modification Post-Modification Number of Pre-Modification Post-Modification Mortgage loans: Residential 1 $ 171 $ 170 1 $ 342 $ 283 Total mortgage loans 1 171 170 1 342 283 Commercial loans 4 2,940 2,363 4 1,483 1,429 Total restructured loans 5 $ 3,111 $ 2,533 5 $ 1,825 $ 1,712
Schedule of Fair Value of Loans Acquired in Acquisition	The table below illustrates the fair value adjustments made to the amortized cost basis in order to present a fair value of the loans acquired (in thousands): Gross amortized cost basis at July 31, 2020 $ 1,787,057 Interest rate fair value adjustment on all loans 455 Credit fair value adjustment on non-PCD loans (21,397) Fair value of acquired loans at July 31, 2020 1,766,115 Allowance for credit losses on PCD loans (13,586) Fair value of acquired loans at July 31, 2020 $ 1,752,529 The table below is a summary of the PCD loans accounted for in accordance with ASC 310-26 that were acquired in the SB One acquisition as of the closing date (in thousands): Gross amortized cost basis at July 31, 2020 $ 315,784 Interest component of expected cash flows (accretable difference) (7,988) Allowance for credit losses on PCD loans (13,586) Net PCD loans $ 294,210 The table below is a summary of the PCD loans accounted for in accordance with ASC 310-26 that were acquired in the SB One acquisition as of the July 31, 2020 closing date (in thousands): Gross amortized cost basis at July 31, 2020 $ 315,784 Interest component of expected cash flows (accretable difference) (7,988) Fair value of PCD loans 307,796 Allowance for credit losses on PCD loans (13,586) Net PCD loans $ 294,210
Summary of Impaired Loans Receivable by Class	The following table presents loans individually evaluated for impairment by class and loan category (in thousands): June 30, 2021 December 31, 2020 Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Loans with no related allowance Mortgage loans: Residential $ 12,489 9,832 — 9,923 226 13,981 11,380 — 11,587 511 Commercial 20,500 19,752 — 19,774 48 17,414 17,414 — 16,026 60 Multi-family — — — — — — — — — — Construction 2,200 2,190 — 2,127 23 — — — — — Total 35,189 31,774 — 31,824 297 31,395 28,794 — 27,613 571 Commercial loans 23,131 17,677 — 17,976 11 15,895 14,009 — 12,791 46 Consumer loans 1,433 907 — 918 51 1,382 880 — 7 50 Total impaired loans $ 59,753 50,358 — 50,718 359 48,672 43,683 — 40,411 667 Loans with an allowance recorded Mortgage loans: Residential $ 8,059 7,725 861 7,773 137 7,950 7,506 806 7,604 307 Commercial 18,305 14,727 2,272 15,284 24 14,993 12,483 3,414 123 570 Multi-family 1,164 1,164 300 1,168 32 — — — — — Total 27,528 23,616 3,433 24,225 193 22,943 19,989 4,220 7,727 877 Commercial loans 8,344 7,615 4,145 11,084 218 24,947 21,823 4,715 18,620 311 Consumer loans 416 410 35 413 11 565 551 39 5 20 Total impaired loans $ 36,288 31,641 7,613 35,722 422 48,455 42,363 8,974 26,352 1,208 Total impaired loans Mortgage loans: Residential $ 20,548 17,557 861 17,696 363 21,931 18,886 806 19,191 818 Commercial 38,805 34,479 2,272 35,058 72 32,407 29,897 3,414 16,149 630 Multi-family 1,164 1,164 300 1,168 32 — — — — — Construction 2,200 2,190 — 2,127 23 — — — — — Total 62,717 55,390 3,433 56,049 490 54,338 48,783 4,220 35,340 1,448 Commercial loans 31,475 25,292 4,145 29,060 229 40,842 35,832 4,715 31,411 357 Consumer loans 1,849 1,317 35 1,331 62 1,947 1,431 39 12 70 Total impaired loans $ 96,041 81,999 7,613 86,440 781 97,127 86,046 8,974 66,763 1,875
Summary of Loans Receivable by Credit Quality Risk Rating Indicator	The following table summarizes the Company's gross loans held for investment by year of origination and internally assigned credit grades (in thousands): At June 30, 2021 Total portfolio Residential Commercial mortgage Multi-family Construction Total Commercial Consumer Total Loans (1) Special mention $ 4,000 112,331 8,825 26,034 151,190 101,830 1,223 254,243 Substandard 14,461 91,640 2,598 2,967 111,666 121,959 1,914 235,539 Doubtful — 335 — — 335 5 — 340 Loss — — — — — — — — Total criticized and classified 18,461 204,306 11,423 29,001 263,191 223,794 3,137 490,122 Pass/Watch 1,235,363 3,367,110 1,349,741 636,883 6,589,097 2,130,405 345,348 9,064,850 Total $ 1,253,824 3,571,416 1,361,164 665,884 6,852,288 2,354,199 348,485 9,554,972 2021 Special mention $ — — — — — — — — Substandard (2) — — — — — 8,598 — 8,598 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified — — — — — 8,598 — 8,598 Pass/Watch 155,340 219,812 51,777 44,724 471,653 397,753 23,799 893,205 Total gross loans $ 155,340 219,812 51,777 44,724 471,653 406,351 23,799 901,803 2020 Special mention $ — — — 1,980 1,980 313 — 2,293 Substandard — — — — — 2,127 — 2,127 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified — — — 1,980 1,980 2,440 — 4,420 Pass/Watch 252,991 635,144 294,274 144,186 1,326,595 398,800 36,515 1,761,910 Total gross loans $ 252,991 635,144 294,274 146,166 1,328,575 401,240 36,515 1,766,330 2019 Special mention $ 658 28,711 676 16,819 46,864 6,195 — 53,059 Substandard 479 515 1,164 — 2,158 11,001 91 13,250 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 1,137 29,226 1,840 16,819 49,022 17,196 91 66,309 Pass/Watch 134,657 622,561 176,107 288,843 1,222,168 225,881 41,893 1,489,942 Total gross loans $ 135,794 651,787 177,947 305,662 1,271,190 243,077 41,984 1,556,251 2018 Special mention $ — 8,866 — — 8,866 2,996 175 12,037 Substandard 1,700 27,787 — 2,967 32,454 8,741 — 41,195 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 1,700 36,653 — 2,967 41,320 11,737 175 53,232 Pass/Watch 75,279 379,166 193,344 139,215 787,004 216,999 38,375 1,042,378 Total gross loans $ 76,979 415,819 193,344 142,182 828,324 228,736 38,550 1,095,610 2017 and prior Special mention $ 3,342 74,754 8,149 7,235 93,480 92,326 1,047 186,853 Substandard 12,282 63,338 1,434 — 77,054 91,492 1,824 170,370 Doubtful — 335 — — 335 5 — 340 Loss — — — — — — — — Total criticized and classified 15,624 138,427 9,583 7,235 170,869 183,823 2,871 357,563 Pass/Watch 617,096 1,510,427 634,239 19,915 2,781,677 890,972 204,766 3,877,415 Total gross loans $ 632,720 1,648,854 643,822 27,150 2,952,546 1,074,795 207,637 4,234,978 At December 31, 2020 Residential Commercial mortgage Multi-family Construction Total Commercial Consumer Total loans Special mention $ 2,882 124,631 29,781 24,376 181,670 157,080 1,867 340,617 Substandard 26,651 98,313 1,568 4,924 131,456 127,092 6,746 265,294 Doubtful — — — — — 52 — 52 Loss — — — — — — — — Total criticized and classified 29,533 222,944 31,349 29,300 313,126 284,224 8,613 605,963 Pass/Watch 1,265,169 3,235,722 1,453,166 512,639 6,466,696 2,283,246 483,953 9,233,895 Total $ 1,294,702 3,458,666 1,484,515 541,939 6,779,822 2,567,470 492,566 9,839,858 (1) Contained within criticized and classified loans at June 30, 2021 are loans that were granted payment deferrals related to COVID-19 totaling $7.3 million. (2) Includes an $8.5 million restructured loan, initially originated in 2015, which is classified as substandard pending the borrower’s ability to demonstrate a sustained period of payment performance (generally six

Deposits (Tables)

Deposits (Tables)	6 Months Ended
	Jun. 30, 2021
Banking and Thrift, Other Disclosures [Abstract]
Schedule of Deposits	Deposits at June 30, 2021 and December 31, 2020 are summarized as follows (in thousands): June 30, 2021 December 31, 2020 Savings $ 1,418,354 1,348,147 Money market 2,413,046 2,245,412 NOW 3,386,064 2,808,637 Non-interest bearing 2,530,468 2,341,459 Certificates of deposit 842,052 1,094,174 Total deposits $ 10,589,984 9,837,829

Components of Net Periodic Be_2

Components of Net Periodic Benefit Cost (Tables)	6 Months Ended
	Jun. 30, 2021
Retirement Benefits [Abstract]
Net Periodic Benefit Cost (Increase)	Net periodic (benefit) increase cost for pension benefits and other post-retirement benefits for the three and six months ended June 30, 2021 and 2020 includes the following components (in thousands): Three months ended June 30, Six months ended June 30, Pension benefits Other post-retirement benefits Pension benefits Other post-retirement benefits 2021 2020 2021 2020 2021 2020 2021 2020 Service cost $ — — 9 20 $ — — 18 40 Interest cost 198 250 106 178 396 500 212 356 Expected return on plan assets (807) (737) — — (1,614) (1,474) — — Amortization of prior service cost — — — — — — — — Amortization of the net loss (gain) 118 174 (268) (62) 236 348 (536) (124) Net periodic (decrease) increase in benefit cost $ (491) (313) (153) 136 $ (982) (626) (306) 272

Allowance for Credit Losses o_2

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures (Tables)	6 Months Ended
	Jun. 30, 2021
Credit Loss [Abstract]
Schedule of Impact of ASC 326	The following table illustrates the impact of the January 1, 2020 adoption of CECL on held to maturity debt securities (in thousands): January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Held to Maturity Debt Securities Allowance for credit losses on corporate securities $ 6 — 6 Allowance for credit losses on municipal securities 64 — 64 Allowance for credit losses on held to maturity debt securities $ 70 — 70 The following table illustrates the impact of the January 1, 2020 adoption of CECL on the allowance for credit losses for the loan portfolio (in thousands): January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Loans Residential $ 8,950 3,414 5,536 Commercial 17,118 12,831 4,287 Multi-family 9,519 3,374 6,145 Construction 4,152 5,892 (1,740) Total mortgage loans 39,739 25,511 14,228 Commercial loans 18,254 28,263 (10,009) Consumer loans 5,452 1,751 3,701 Allowance for credit losses on loans $ 63,445 55,525 7,920 The following table illustrates the impact of the January 1, 2020 adoption of CECL on off-balance sheet credit exposures: January 1, 2020 As reported under CECL Prior to CECL Impact of CECL adoption Liabilities Allowance for credit losses on off-balance sheet credit exposure $ 3,206 — 3,206

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Assets and Liabilities Reported on Consolidated Statements of Financial Condition at Fair Values	The following tables present the assets and liabilities reported on the consolidated statements of financial condition at their fair values as of June 30, 2021 and December 31, 2020, by level within the fair value hierarchy (in thousands): Fair Value Measurements at Reporting Date Using: June 30, 2021 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Measured on a recurring basis: Available for sale debt securities: U.S. Treasury obligations $ 99,969 99,969 — — Mortgage-backed securities 1,298,968 — 1,298,968 — Asset-backed securities 48,550 — 48,550 — State and municipal obligations 70,363 — 70,363 — Corporate obligations 38,763 — 38,763 — Total available for sale debt securities 1,556,613 99,969 1,456,644 — Equity securities 1,094 1,094 — — Derivative assets 81,459 — 81,459 — $ 1,639,166 101,063 1,538,103 — Derivative liabilities $ 84,827 — 84,827 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 21,706 — — 21,706 Foreclosed assets 2,350 — — 2,350 $ 24,056 — — 24,056 Fair Value Measurements at Reporting Date Using: December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Measured on a recurring basis: Available for sale debt securities: Agency obligations $ 1,009 1,009 — — Mortgage-backed securities 938,413 — 938,413 — Asset-backed securities 53,830 — 53,830 — State and municipal obligations 71,258 — 71,258 — Corporate obligations 40,979 — 40,979 — Total available for sale debt securities 1,105,489 1,009 1,104,480 — Equity Securities 971 971 — — Derivative assets 101,079 — 101,079 — $ 1,207,539 1,980 1,205,559 — Derivative liabilities $ 109,148 — 109,148 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 26,250 — — 26,250 Foreclosed assets 4,475 — — 4,475 $ 30,725 — — 30,725
Schedule of Financial Instruments at Carrying and Fair Values	The following tables present the Company’s financial instruments at their carrying and fair values as of June 30, 2021 and December 31, 2020. Fair values are presented by level within the fair value hierarchy. Fair Value Measurements at June 30, 2021 Using: (Dollars in thousands) Carrying value Fair value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 710,153 710,153 710,153 — — Available for sale debt securities: U.S. Treasury obligations 99,969 99,969 99,969 — — Agency obligations — — — — — Mortgage-backed securities 1,298,968 1,298,968 — 1,298,968 — Asset-backed securities 48,550 48,550 48,550 State and municipal obligations 70,363 70,363 — 70,363 — Corporate obligations 38,763 38,763 — 38,763 — Total available for sale debt securities $ 1,556,613 1,556,613 99,969 1,456,644 — Held to maturity debt securities, net of allowance for credit losses: Agency obligations 10,198 10,143 10,143 — — Mortgage-backed securities 38 39 — 39 — State and municipal obligations 417,739 434,316 — 434,316 — Corporate obligations 9,729 9,743 — 9,743 — Total held to maturity debt securities, net of allowance for credit losses $ 437,704 454,241 10,143 444,098 — FHLBNY stock 37,415 37,415 37,415 — — Equity Securities 1,094 1,094 1,094 — — Loans, net of allowance for credit losses 9,458,903 9,623,991 — — 9,623,991 Derivative assets 81,459 81,459 — 81,459 — Financial liabilities: Deposits other than certificates of deposits $ 9,747,932 9,747,932 9,747,932 — — Certificates of deposit 842,052 845,410 — 845,410 — Total deposits $ 10,589,984 10,593,342 9,747,932 845,410 — Borrowings 693,337 697,982 — 697,982 — Subordinated debentures 25,211 30,088 — 30,088 — Derivative liabilities 84,827 84,827 — 84,827 — Fair Value Measurements at December 31, 2020 Using: (Dollars in thousands) Carrying value Fair value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 532,353 532,353 532,353 — — Available for sale debt securities: U.S. Treasury obligations — — — — Agency obligations 1,009 1,009 1,009 — — Mortgage-backed securities 938,413 938,413 — 938,413 — Asset-backed securities 53,830 53,830 53,830 State and municipal obligations 71,258 71,258 — 71,258 — Corporate obligations 40,979 40,979 — 40,979 — Total available for sale debt securities $ 1,105,489 1,105,489 1,009 1,104,480 — Held to maturity debt securities: Agency obligations $ 7,600 7,601 7,601 — — Mortgage-backed securities 62 64 — 64 — State and municipal obligations 433,589 455,039 — 455,039 — Corporate obligations 9,714 9,825 — 9,825 — Total held to maturity debt securities $ 450,965 472,529 7,601 464,928 — FHLBNY stock 59,489 59,489 59,489 — — Equity Securities 971 971 971 — — Loans, net of allowance for credit losses 9,721,424 9,969,330 — — 9,969,330 Derivative assets 101,079 101,079 — 101,079 — Financial liabilities: Deposits other than certificates of deposits $ 8,743,655 8,743,655 8,743,655 — — Certificates of deposit 1,094,174 1,097,993 — 1,097,993 — Total deposits $ 9,837,829 9,841,648 8,743,655 1,097,993 — Borrowings 1,175,972 1,193,024 — 1,193,024 — Subordinated Debt 25,135 24,375 — 24,375 — Derivative liabilities 109,148 109,148 — 109,148 —

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
Components of Other Comprehensive Income (Loss)	The following table presents the components of other comprehensive income, both gross and net of tax, for the three and six months ended June 30, 2021 and 2020 (in thousands): Three months ended June 30, 2021 2020 Before Tax After Before Tax After Components of Other Comprehensive Income: Unrealized gains and losses on available for sale debt securities: Net unrealized (losses) gains arising during the period $ 3,288 (848) 2,440 (1,252) 322 (930) Reclassification adjustment for gains included in net income — — — — — — Total 3,288 (848) 2,440 (1,252) 322 (930) Unrealized losses on derivatives (cash flow hedges) (1,649) 425 (1,224) (1,730) 446 (1,284) Amortization related to post-retirement obligations (150) 39 (111) 95 (25) 70 Total other comprehensive income (loss) $ 1,489 (384) 1,105 (2,887) 743 (2,144) Six months ended June 30, 2021 2020 Before Tax After Before Tax After Components of Other Comprehensive Income: Unrealized gains and losses on available for sale debt securities: Net unrealized (losses) gains arising during the period $ (8,865) 2,286 (6,579) 21,310 (5,494) 15,816 Reclassification adjustment for gains included in net income (230) 59 (171) — — — Total (9,095) 2,345 (6,750) 21,310 (5,494) 15,816 Unrealized gains ( losses) on derivatives (cash flow hedges) 4,577 (1,180) 3,397 (9,427) 2,430 (6,997) Amortization related to post-retirement obligations (300) 80 (220) 207 (53) 154 Total other comprehensive (loss) income $ (4,818) 1,245 (3,573) 12,090 (3,117) 8,973
Components of Accumulated Other Comprehensive Income, Net of Tax	The following tables present the changes in the components of accumulated other comprehensive income, net of tax, for the three and six months ended June 30, 2021 and 2020 (in thousands): Changes in Accumulated Other Comprehensive Income (Loss) by Component, net of tax 2021 2020 Unrealized Post- Retirement Unrealized (Losses) Gains on Derivatives (cash flow hedges) Accumulated Unrealized Gains on Post- Retirement Unrealized Gains (Losses) on Derivatives (cash flow hedges) Accumulated Balance at $ 14,500 (1,190) (333) 12,977 25,492 (5,156) (5,398) 14,938 Current - period other comprehensive income (loss) 2,440 (111) (1,224) 1,105 (930) 70 (1,284) (2,144) Balance at $ 16,940 (1,301) (1,557) 14,082 24,562 (5,086) (6,682) 12,794 Changes in Accumulated Other Comprehensive Income (Loss) by Component, net of tax 2021 2020 Unrealized Post- Retirement Unrealized (Losses) Gains on Derivatives (cash flow hedges) Accumulated Unrealized Gains (Losses) on Post- Retirement Unrealized Gains (Losses) on Derivatives (cash flow hedges) Accumulated Balance at December 31, $ 23,690 (1,081) (4,954) 17,655 8,746 (5,240) 315 3,821 Current - period other comprehensive (loss) income (6,750) (220) 3,397 (3,573) 15,816 154 (6,997) 8,973 Balance at $ 16,940 (1,301) (1,557) 14,082 24,562 (5,086) (6,682) 12,794
Summary of Reclassifications Out of Accumulated Other Comprehensive Income	The following tables summarize the reclassifications from accumulated other comprehensive income (loss) to the consolidated statements of income for the three and six months ended June 30, 2021 and 2020 (in thousands): Reclassifications From Accumulated Other Comprehensive Amount reclassified from AOCI for the three months ended June 30, Affected line item in the Consolidated 2021 2020 Details of AOCI: Post-retirement obligations: Amortization of actuarial (losses) gains $ (150) 112 Compensation and employee benefits (1) 39 (29) Income tax expense Total reclassification $ (111) 83 Net of tax Reclassifications From Accumulated Other Comprehensive Amount reclassified from AOCI for the six months ended June 30, Affected line item in the Consolidated 2021 2020 Details of AOCI: Available for sale debt securities: Realized net gains on the sale of securities available for sale $ (230) — Net gain on securities transactions 59 — Income tax expense (171) — Net of tax Post-retirement obligations: Amortization of actuarial (losses) gains $ (300) 224 Compensation and employee benefits (1) 80 (58) Income tax expense Total reclassification $ (220) 166 Net of tax (1) This item is included in the computation of net periodic benefit cost. See Note 6. Components of Net Periodic Benefit Cost.

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value of Derivative Financial Instruments	The tables below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statements of Financial Condition at June 30, 2021 and December 31, 2020 (in thousands): At June 30, 2021 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Consolidated Statements of Financial Condition Fair Derivatives not designated as a hedging instrument: Interest rate products Other assets $ 76,310 Other liabilities 77,716 Credit contracts Other assets 131 Other liabilities — Total derivatives not designated as a hedging instrument $ 76,441 77,716 Derivatives designated as a hedging instrument: Interest rate products Other assets $ 5,018 Other liabilities 7,111 Total derivatives designated as a hedging instrument $ 5,018 7,111 At December 31, 2020 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Consolidated Statements of Financial Condition Fair Derivatives not designated as a hedging instrument: Interest rate products Other assets $ 107,652 Other liabilities 109,148 Credit contracts Other assets 97 Other liabilities — Total derivatives not designated as a hedging instrument $ 107,749 109,148 Derivatives designated as a hedging instrument: Interest rate products Other assets $ (6,671) Other liabilities — Total derivatives designated as a hedging instrument $ (6,671) —
Effect of the derivative financial instruments on the Income Statement	The tables below present the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income during the three and six months ended June 30, 2021 and 2020 (in thousands). Gain (loss) recognized in income on derivatives for the three months ended Consolidated Statements of Income June 30, 2021 June 30, 2020 Derivatives not designated as a hedging instrument: Interest rate products Other income $ (323) (229) Credit contracts Other income 24 — Total $ (299) (229) Derivatives designated as a hedging instrument: Interest rate products Interest expense $ 947 126 Total $ 947 126 Gain (loss) recognized in income on derivatives for the six months ended Consolidated Statements of Income June 30, 2021 June 30, 2020 Derivatives not designated as a hedging instrument: Interest rate products Other income $ 77 (1,049) Credit contracts Other income 47 (1) Total $ 124 (1,050) Derivatives designated as a hedging instrument: Interest rate products Interest expense $ 1,826 21 Total $ 1,826 21

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Summary of Non-interest Income	The following table presents non-interest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the three and six months ended June 30, 2021 and 2020 (in thousands): Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Non-interest income In-scope of Topic 606: Wealth management fees $ 7,859 5,977 14,993 12,228 Insurance agency income 2,849 — 5,576 — Banking service charges and other fees: Service charges on deposit accounts 2,555 2,071 5,054 5,047 Debit card and ATM fees 2,098 1,265 3,876 2,475 Total banking service charges and other fees 4,653 3,336 8,930 7,522 Total in-scope non-interest income 15,361 9,313 29,499 19,750 Total out-of-scope non-interest income 5,795 5,052 13,294 11,606 Total non-interest income $ 21,156 14,365 42,793 31,356

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Supplemental Balance Sheet Information	The following table represents the consolidated statements of financial condition classification of the Company’s right-of use-assets and lease liabilities at June 30, 2021 and December 31, 2020 (in thousands): Classification June 30, 2021 December 31, 2020 Lease Right-of-Use Assets: Operating lease right-of-use assets Other assets $ 40,372 $ 41,142 Lease Liabilities: Operating lease liabilities Other liabilities $ 41,523 $ 42,042
Schedule of Supplemental Cash Flow and Other information Related to Leases	The following tables represent lease costs and other lease information for the Company's operating leases. The variable lease cost primarily represents variable payments such as common area maintenance and utilities (in thousands): Three months ended June 30, 2021 Three months ended June 30, 2020 Lease Costs Operating lease cost $ 2,330 $ 2,132 Variable lease cost 717 724 Total lease cost $ 3,047 $ 2,856 Six months ended June 30, 2021 Six months ended June 30, 2020 Lease Costs Operating lease cost $ 5,142 $ 4,262 Variable lease cost 1,519 1,330 Total lease cost $ 6,661 $ 5,592 Cash paid for amounts included in the measurement of lease liabilities: Six months ended June 30, 2021 Six months ended June 30, 2020 Operating cash flows from operating leases $ 4,575 $ 4,247
Schedule of Future Minimum Payments	Future minimum payments for operating leases with initial or remaining terms of one year or more as of June 30, 2021, were as follows (in thousands): Operating leases Twelve months ended: Remainder of 2021 $ 4,347 2022 6,613 2023 6,102 2024 5,700 2025 5,114 Thereafter 20,120 Total future minimum lease payments 47,996 Amounts representing interest 6,473 Present value of net future minimum lease payments $ 41,523

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accounting Policies [Abstract]
Net income	$ 44,789	$ 14,311	$ 93,348	$ 29,242
Basic earnings per share:
Income available to common stockholders, basic	$ 44,789	$ 14,311	$ 93,348	$ 29,242
Weighted average common shares outstanding, basic (in shares)	76,643,546	64,315,547	76,580,364	64,350,790
Income available to common stockholders, per share amount, basic (usd per share)	$ 0.58	$ 0.22	$ 1.22	$ 0.45
Dilutive shares (in shares)	109,896	85,001	87,107	78,064
Diluted earnings per share:
Income available to common stockholders, diluted	$ 44,789	$ 14,311	$ 93,348	$ 29,242
Weighted average common shares outstanding, diluted (in shares)	76,753,442	64,400,548	76,667,471	64,428,854
Income available to common stockholders, per share amount, diluted (usd per share)	$ 0.58	$ 0.22	$ 1.22	$ 0.45

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Narrative) (Details) - shares	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Accounting Policies [Abstract]
Anti-dilutive stock options and awards excluded from computation of earnings per share (in shares)	1,000,000	1,200,000

Business Combinations - SB One

Business Combinations - SB One Bancorp Acquisition (Details) $ in Thousands	Jul. 31, 2020USD ($)numberOfBankingOfficesshares	Jun. 30, 2021USD ($)branch	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Jan. 01, 2020USD ($)	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Fair value of acquired loans at July 31, 2020	$ 1,766,115
Excess of consideration paid recorded as goodwill	22,400
Fair value premium	8,400
Allowance for credit losses		$ 80,959	$ 85,591	$ 101,466	$ 86,259	$ 75,143	$ 55,525	$ 55,525
Number of branches acquired | branch		18
Number of branches owned | branch		8
Subordinated debentures		$ 25,211		$ 25,135
SB One Bancorp
Business Acquisition [Line Items]
Business combination assets acquired	$ 2,195,708
Number of banking offices | numberOfBankingOffices	18
Common stock portion, number of SB One Bancorp stock for each share of company common stock converted | shares	1.357
Common stock, total amount of company stock | shares	12,800,000
Total cost of acquisition	$ 180,800
Fair value premium		133
Allowance for credit losses	13,600
Bank-owned life insurance	37,200
Time deposit discount		4,300
Subordinated debentures		27,500
SB One Bancorp | Core Deposits
Business Acquisition [Line Items]
Intangible asset		$ 3,200
Estimated useful life		10 years
SB One Bancorp | Customer Relationships
Business Acquisition [Line Items]
Intangible asset		$ 6,800
Estimated useful life		13 years
SB One Bancorp | Loans
Business Acquisition [Line Items]
Fair value of acquired loans at July 31, 2020	1,770,000
SB One Bancorp | Deposits
Business Acquisition [Line Items]
Fair value of acquired loans at July 31, 2020	$ 1,760,000

Business Combinations - Estimat

Business Combinations - Estimated Fair Values of the Assets Acquired and the Liabilities Assumed (Details) - SB One Bancorp $ in Thousands	Jul. 31, 2020USD ($)
Assets acquired
Cash and cash equivalents, net	$ 78,089
Available for sale debt securities	231,645
Held to maturity debt securities	12,381
Federal Home Loan Bank stock	11,216
Loans	1,766,115
Allowance for credit losses on PCD loans	(13,586)
Loans, net	1,752,529
Bank-owned life insurance	37,237
Banking premises and equipment	16,620
Accrued interest receivable	8,947
Goodwill	22,439
Other intangibles assets	9,965
Foreclosed assets, net	2,441
Other assets	12,199
Total assets acquired	2,195,708
Liabilities assumed
Deposits	1,757,777
Borrowed funds	201,582
Subordinated debentures	25,074
Other liabilities	30,447
Total liabilities assumed	2,014,880
Net assets acquired	$ 180,828

Business Combinations - Fair Va

Business Combinations - Fair Value Adjustments Made to the Amortized Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jul. 31, 2020
Business Acquisition [Line Items]
Gross amortized cost basis at July 31, 2020		$ 1,787,057
Interest rate fair value adjustment on all loans		455
Credit fair value adjustment on non-PCD loans		(21,397)
Fair value of acquired loans at July 31, 2020		1,766,115
Allowance for credit losses on PCD loans		$ (13,586)
Loans, net	$ 1,752,529

Business Combinations - Summary

Business Combinations - Summary of PCD Loans (Details) - SB One Bancorp $ in Thousands	Jul. 31, 2020USD ($)
Business Acquisition [Line Items]
Gross amortized cost basis at July 31, 2020	$ 315,784
Interest component of expected cash flows (accretable difference)	(7,988)
Allowance for credit losses on PCD loans	(13,586)
Net PCD loans	$ 294,210

Investment Securities (Narrativ

Investment Securities (Narrative) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)securityposition	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)securityposition	Jun. 30, 2020USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)securityposition	Mar. 31, 2020USD ($)	Jan. 01, 2020USD ($)	Dec. 31, 2019USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Available for sale debt securities, at fair value	$ 1,556,613,000		$ 1,556,613,000			$ 1,105,489,000
Securities held to maturity, at fair value	$ 437,704,000		$ 437,704,000			$ 450,965,000
Total number of all held to maturity and available for sale securities in an unrealized loss position | security	100		100			49
Allowance for credit losses	$ (73,000)		$ (73,000)			$ 78,000			$ 0
Retained earnings	775,235,000		775,235,000			718,090,000
Securities available for sale, amortized cost	1,533,790,000		1,533,790,000			$ 1,073,570,000
Proceeds from sales of securities	$ 0	$ 0	9,442,000	$ 0
Gain recognized on sale of securities			230,000
Loss recognized on sale of securities			$ 0
Securities available for sale, number of securities in an unrealized loss position | position	62		62			42
Unrealized loss	$ 4,580,000		$ 4,580,000			$ 971,000
Held to maturity securities, proceeds from calls	6,100,000	12,600,000	12,900,000	25,900,000
Held to maturity securities, recognized gain on calls	33,500	44,000	1,000
Held to maturity securities, recognized loss on calls	0		0	0
Investment securities held to maturity, fair value	454,241,000		454,241,000			472,529,000
Allowance for credit losses	$ 80,959,000	$ 86,259,000	$ 80,959,000	$ 86,259,000	$ 85,591,000	$ 101,466,000	$ 75,143,000	$ 55,525,000	$ 55,525,000
Number of securities in an unrealized loss position | security	38		38			7
AAA
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, at fair value	$ 69,337,000		$ 69,337,000			$ 65,492,000
Amount of total portfolio			16.00%
AA
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, at fair value	308,502,000		$ 308,502,000			314,410,000
Amount of total portfolio			70.00%
A
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, at fair value	56,514,000		$ 56,514,000			59,748,000
Amount of total portfolio			13.00%
A rated or not rated
Schedule of Held-to-maturity Securities [Line Items]
Amount of total portfolio			1.00%
Private Label Mortgage-Backed Securities
Schedule of Held-to-maturity Securities [Line Items]
Securities available for sale, amortized cost	$ 17,357,000		$ 17,357,000
Securities available for sale, number of securities in an unrealized loss position | position	1		1
Unrealized loss	$ 660,000		$ 660,000
Accounting Standards Update 2016-13
Schedule of Held-to-maturity Securities [Line Items]
Allowance for credit losses								70,000
Allowance for credit losses								7,900,000
Accounting Standards Update 2016-13, Effect On Debt Securities
Schedule of Held-to-maturity Securities [Line Items]
Retained earnings								$ 52,000
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Available for sale debt securities, at fair value	1,298,968,000		1,298,968,000			938,413,000
Allowance for credit losses	73,000		73,000
Securities available for sale, amortized cost	1,280,375,000		1,280,375,000			910,393,000
Unrealized loss	4,470,000		4,470,000			852,000
Held-to-maturity securities, amortized cost	38,000		38,000
Investment securities held to maturity, fair value	39,000		39,000			64,000
Mortgage-backed securities | AAA
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, at fair value	38,000		38,000			62,000
Mortgage-backed securities | AA
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, at fair value	0		0			0
Mortgage-backed securities | A
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, at fair value	0		0			$ 0
Investments
Schedule of Held-to-maturity Securities [Line Items]
Available for sale debt securities, at fair value	1,350,000,000		1,350,000,000
Securities available for sale, amortized cost	$ 1,330,000,000		$ 1,330,000,000

Investment Securities (Securiti

Investment Securities (Securities Available for Sale) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 1,533,790	$ 1,073,570
Gross unrealized gains	27,403	32,890
Gross unrealized losses	(4,580)	(971)
Available for sale debt securities, at fair value	1,556,613	1,105,489
Agency obligations
Debt Securities, Available-for-sale [Line Items]
Amortized cost		1,001
Gross unrealized gains		8
Gross unrealized losses		0
Available for sale debt securities, at fair value		1,009
U.S. Treasury obligations
Debt Securities, Available-for-sale [Line Items]
Amortized cost	99,437
Gross unrealized gains	532
Gross unrealized losses	0
Available for sale debt securities, at fair value	99,969
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	1,280,375	910,393
Gross unrealized gains	23,063	28,872
Gross unrealized losses	(4,470)	(852)
Available for sale debt securities, at fair value	1,298,968	938,413
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	46,653	52,295
Gross unrealized gains	1,897	1,535
Gross unrealized losses	0	0
Available for sale debt securities, at fair value	48,550	53,830
State and municipal obligations
Debt Securities, Available-for-sale [Line Items]
Amortized cost	69,197	69,687
Gross unrealized gains	1,198	1,666
Gross unrealized losses	(32)	(95)
Available for sale debt securities, at fair value	70,363	71,258
Corporate obligations
Debt Securities, Available-for-sale [Line Items]
Amortized cost	38,128	40,194
Gross unrealized gains	713	809
Gross unrealized losses	(78)	(24)
Available for sale debt securities, at fair value	$ 38,763	$ 40,979

Investment Securities (Availabl

Investment Securities (Available for Sale by Contractual Maturity) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 1,533,790	$ 1,073,570
Fair value	1,556,613	$ 1,105,489
Available-for-sale Securities
Debt Securities, Available-for-sale [Line Items]
Due in one year or less, amortized cost	0
Due after one year through five years, amortized cost	56,535
Due after five years through ten years, amortized cost	84,509
Due after ten years, amortized cost	65,718
Amortized cost	206,762
Due in one year or less, fair value	0
Due after one year through five years, fair value	56,813
Due after five years through ten years, fair value	85,494
Due after ten years, fair value	66,788
Fair value	$ 209,095

Investment Securities (Disclosu

Investment Securities (Disclosure Regarding Length of Time on Securities Available for Sale with Temporary Impairment) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 499,009	$ 132,875
Less than 12 months, gross unrealized losses	(4,553)	(919)
12 months or longer, fair value	7,268	10,007
12 months or longer, gross unrealized losses	(27)	(52)
Total, fair value	506,277	142,882
Total, gross unrealized losses	(4,580)	(971)
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	480,614	127,600
Less than 12 months, gross unrealized losses	(4,443)	(824)
12 months or longer, fair value	7,268	8,007
12 months or longer, gross unrealized losses	(27)	(28)
Total, fair value	487,882	135,607
Total, gross unrealized losses	(4,470)	(852)
State and municipal obligations
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	11,600	5,275
Less than 12 months, gross unrealized losses	(32)	(95)
12 months or longer, fair value	0	0
12 months or longer, gross unrealized losses	0	0
Total, fair value	11,600	5,275
Total, gross unrealized losses	(32)	(95)
Corporate obligations
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	6,795	0
Less than 12 months, gross unrealized losses	(78)	0
12 months or longer, fair value	0	2,000
12 months or longer, gross unrealized losses	0	(24)
Total, fair value	6,795	2,000
Total, gross unrealized losses	$ (78)	$ (24)

Investment Securities (Held to

Investment Securities (Held to Maturity) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 437,777	$ 451,043
Gross unrealized gains	16,879	21,551
Gross unrealized losses	(415)	(65)
Allowance for credit losses	(73)	78	$ 0
Held to maturity debt securities	454,241	472,529
Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	10,198	7,600
Gross unrealized gains	0	6
Gross unrealized losses	(55)	(5)
Held to maturity debt securities	10,143	7,601
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	38	62
Gross unrealized gains	1	2
Gross unrealized losses	0	0
Allowance for credit losses	73
Held to maturity debt securities	39	64
State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	417,794	433,655
Gross unrealized gains	16,824	21,442
Gross unrealized losses	(302)	(58)
Held to maturity debt securities	434,316	455,039
Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	9,747	9,726
Gross unrealized gains	54	101
Gross unrealized losses	(58)	(2)
Allowance for credit losses			$ 0
Held to maturity debt securities	$ 9,743	$ 9,825

Investment Securities (Securi_2

Investment Securities (Securities Held to Maturity by Contractual Maturity) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 437,704	$ 450,965
Fair value	454,241	$ 472,529
Held-to-maturity Securities
Schedule of Held-to-maturity Securities [Line Items]
Due in one year or less, amortized cost	0
Due after one year through five years, amortized cost	154,182
Due after five years through ten years, amortized cost	213,637
Due after ten years, amortized cost	69,920
Amortized cost	437,739
Due in one year or less, fair value	0
Due after one year through five years, fair value	157,762
Due after five years through ten years, fair value	224,366
Due after ten years, fair value	72,074
Fair value	$ 454,202

Investment Securities - (ASU 20

Investment Securities - (ASU 2016-13 Adoption Impact) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses	$ (73)	$ 78		$ 0
Cumulative Effect, Period of Adoption, Adjusted Balance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses			$ 70
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses			70
Corporate obligations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses				0
Corporate obligations | Cumulative Effect, Period of Adoption, Adjusted Balance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses			6
Corporate obligations | Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses			6
Municipal Notes
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses				$ 0
Municipal Notes | Cumulative Effect, Period of Adoption, Adjusted Balance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses			64
Municipal Notes | Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses			$ 64

Investment Securities (Disclo_2

Investment Securities (Disclosure Regarding Length of Time on Investment Securities with Temporary Impairment) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	$ 34,218	$ 7,627
Less than 12 months, gross unrealized losses	(400)	(48)
12 months or longer, fair value	406	406
12 months or longer, gross unrealized losses	(15)	(17)
Total, fair value	34,624	8,033
Total, gross unrealized losses	(415)	(65)
Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	7,843	1,995
Less than 12 months, gross unrealized losses	(55)	(5)
12 months or longer, fair value	0	0
12 months or longer, gross unrealized losses	0	0
Total, fair value	7,843	1,995
Total, gross unrealized losses	(55)	(5)
State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	20,602	4,846
Less than 12 months, gross unrealized losses	(287)	(41)
12 months or longer, fair value	406	406
12 months or longer, gross unrealized losses	(15)	(17)
Total, fair value	21,008	5,252
Total, gross unrealized losses	(302)	(58)
Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	5,773	786
Less than 12 months, gross unrealized losses	(58)	(2)
12 months or longer, fair value	0	0
12 months or longer, gross unrealized losses	0	0
Total, fair value	5,773	786
Total, gross unrealized losses	$ (58)	$ (2)

Investment Securities (Amortize

Investment Securities (Amortized Cost of held to Maturity Debt Securities by Year of Originations and Credit Rating) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 437,704	$ 450,965
Total	437,777	451,043
Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Total	10,198	7,600
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Total	38	62
State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Total	417,794	433,655
Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Total	9,747	9,726
AAA
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	69,337	65,492
AAA | Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	10,198	7,600
AAA | Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	38	62
AAA | State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	59,101	57,830
AAA | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
AA
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	308,502	314,410
AA | Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
AA | Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
AA | State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	306,168	311,155
AA | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	2,334	3,255
A
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	56,514	59,748
A | Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
A | Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
A | State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	49,426	53,302
A | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	7,088	6,446
BBB
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	1,415	1,115
BBB | Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
BBB | Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
BBB | State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	1,115	1,115
BBB | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	300	0
Not Rated
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	2,009	10,278
Not Rated | Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
Not Rated | Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
Not Rated | State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	1,984	10,253
Not Rated | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 25	$ 25

Loans Receivable and Allowanc_3

Loans Receivable and Allowance for Credit Losses (Narrative) (Detail)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021USD ($)counterpartySecurityLoan	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)SecurityLoancounterpartyborrowertroubled_debt_restructuring	Jun. 30, 2020USD ($)SecurityLoan	Dec. 31, 2020USD ($)troubled_debt_restructuringSecurityLoanborrower	Jul. 16, 2021USD ($)	Mar. 31, 2021USD ($)	Jul. 31, 2020USD ($)	Mar. 31, 2020USD ($)	Jan. 01, 2020USD ($)	Dec. 31, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Less allowance for credit losses	$ 80,959,000	$ 86,259,000	$ 80,959,000	$ 86,259,000	$ 101,466,000		$ 85,591,000		$ 75,143,000	$ 55,525,000	$ 55,525,000
Retained earnings	775,235,000		775,235,000		718,090,000
Total gross loans	9,554,972,000		9,554,972,000		9,839,858,000
Principal amount of nonaccrual loans	80,100,000		80,100,000		87,100,000
Loans less than 90 days past due	$ 49,100,000		$ 49,100,000		$ 35,300,000
Number of loans 90 days past due and still accruing | SecurityLoan	0		0		0
Impaired loan defined floor limit (greater than)	$ 1,000,000		$ 1,000,000
Impaired loans number | SecurityLoan			168		169
Impaired loans	81,999,000		$ 81,999,000		$ 86,046,000
Number of troubled debt restructurings | troubled_debt_restructuring			113		135
Number of borrowers | borrower			109		110
Loans and leases receivable, impaired, nonperforming, accrual of interest	22,000,000		$ 22,000,000		$ 23,100,000
Collateral-dependent impaired loans	21,700,000		21,700,000		26,300,000
Provision for credit losses	(10,704,000)	10,900,000	(25,705,000)	25,617,000
Charge off, impaired loan	$ 0	447,000,000	$ 1,500,000	$ 3,200,000
Weighted average modified interest rate	4.37%		4.52%
Weighted average prior modification rate	4.59%		4.62%
Number of payment defaults for loans modified as TDRs | SecurityLoan			0	0
Purchased credit-impaired loans					746,000
Allowances for loan losses	$ 7,613,000		$ 7,613,000		8,974,000
Impaired financing receivable with no related allowance	50,400,000		50,400,000		43,700,000
Average balance of impaired loans			86,440,000		66,763,000
Total gross loans	$ 9,539,862,000		$ 9,539,862,000		9,822,890,000
Number of PPP loans | counterparty	2,066		2,066
Paycheck protection program	$ 681,900,000		$ 681,900,000
Number of loans forgiven | SecurityLoan	1,082		1,082
Paycheck protection program, amount forgiven	$ 372,500,000		$ 372,500,000
Paycheck protection program, amount outstanding	309,400,000		309,400,000
Hotel | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						$ 3,900,000
Restaurants | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						2,100,000
Suburban Office Space | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						463,000
Retail Properties | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						431,000
Residential | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						359,000
Purchased credit-impaired (PCI) loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Less allowance for credit losses	11,000,000		11,000,000		13,100,000
Total gross loans	264,800,000		264,800,000		$ 296,600,000
Second 90-Day Deferral Period, Expected To Be Granted | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						300,000
Third Deferral Period | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						7,000,000
SB One Bancorp
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Less allowance for credit losses								$ 13,600,000
Maximum | Payment Deferral | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						$ 1,310,000,000
Percentage of total loans						16.80%
Minimum | Payment Deferral | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						$ 7,300,000
Consumer Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	81,000		81,000
Commercial Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	20,000,000		20,000,000
Residential Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	1,600,000		1,600,000
Impaired Loans Troubled Debt Restructurings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans number | SecurityLoan					112
Loans and leases receivable, impaired, nonperforming, accrual of interest					$ 39,600,000
Allowances for loan losses	14,000		14,000
Commercial Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Less allowance for credit losses	21,262,000	$ 25,284,000	21,262,000	$ 25,284,000	27,084,000		26,302,000		$ 22,841,000	28,263,000	$ 28,263,000
Total gross loans	2,354,199,000		2,354,199,000		2,567,470,000
Impaired loans	25,292,000		25,292,000		35,832,000
Allowances for loan losses	$ 4,145,000		4,145,000		4,715,000
Average balance of impaired loans			$ 29,060,000		$ 31,411,000
Commercial Loans | SB One Bancorp
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans							$ 101,700,000
Commercial Loans | Minimum | Payment Deferral | Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gross loans						$ 6,900,000
Accounting Standards Update 2016-13
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Less allowance for credit losses										7,900,000
Accounting Standards Update 2016-13, Effect On Loans Receivable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Retained earnings										$ 5,900,000

Loans Receivable and Allowanc_4

Loans Receivable and Allowance for Credit Losses (Schedule of Summarized Loans Receivable) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	$ 9,554,972	$ 9,839,858
Premiums on purchased loans	1,257	1,566
Unearned discounts	(6)	(12)
Net deferred fees	(16,361)	(18,522)
Total loans	9,539,862	9,822,890
Loans, excluding purchased credit-impaired loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	9,554,972	9,839,858
Purchased credit-impaired (PCI) loans
Servicing Liability at Amortized Cost [Line Items]
Total loans	264,800	296,600
Mortgage Portfolio Segment
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	6,852,288	6,779,822
Mortgage Portfolio Segment | Loans, excluding purchased credit-impaired loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	6,852,288	6,779,822
Mortgage Portfolio Segment | Residential
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	1,253,824	1,294,702
Mortgage Portfolio Segment | Residential | Loans, excluding purchased credit-impaired loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	1,253,824	1,294,702
Mortgage Portfolio Segment | Commercial
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	3,571,416	3,458,666
Mortgage Portfolio Segment | Commercial | Loans, excluding purchased credit-impaired loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	3,571,416	3,458,666
Mortgage Portfolio Segment | Multi-Family
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	1,361,164	1,484,515
Mortgage Portfolio Segment | Multi-Family | Loans, excluding purchased credit-impaired loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	1,361,164	1,484,515
Mortgage Portfolio Segment | Construction
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	665,884	541,939
Mortgage Portfolio Segment | Construction | Loans, excluding purchased credit-impaired loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	665,884	541,939
Commercial Loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	2,354,199	2,567,470
Commercial Loans | Loans, excluding purchased credit-impaired loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	2,354,199	2,567,470
Consumer Loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	348,485	492,566
Consumer Loans | Loans, excluding purchased credit-impaired loans
Servicing Liability at Amortized Cost [Line Items]
Total gross loans	$ 348,485	$ 492,566

Loans Receivable and Allowanc_5

Loans Receivable and Allowance for Credit Losses (Summary of Aging Loans Receivable by Portfolio Segment and Class) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	$ 9,554,972	$ 9,839,858
Non-accrual	80,060	87,090
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	94,599	125,100
Non-accrual loans with no related allowance	61,055	49,013
Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	8,637	22,762
Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	5,902	15,248
Financial Asset, Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	9,460,373	9,714,758
Mortgage Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	6,852,288	6,779,822
Non-accrual	46,154	42,689
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	58,128	68,995
Non-accrual loans with no related allowance	32,315	31,189
Mortgage Portfolio Segment | Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	1,253,824	1,294,702
Non-accrual	6,875	9,315
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	16,740	33,956
Non-accrual loans with no related allowance	6,875	9,315
Mortgage Portfolio Segment | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	3,571,416	3,458,666
Non-accrual	36,312	31,982
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	38,421	32,856
Non-accrual loans with no related allowance	22,473	20,482
Mortgage Portfolio Segment | Multi-Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	1,361,164	1,484,515
Non-accrual	0	0
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	0	791
Non-accrual loans with no related allowance	0	0
Mortgage Portfolio Segment | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	665,884	541,939
Non-accrual	2,967	1,392
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	2,967	1,392
Non-accrual loans with no related allowance	2,967	1,392
Mortgage Portfolio Segment | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	7,519	16,756
Mortgage Portfolio Segment | Financing Receivables, 30 to 59 Days Past Due | Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	5,410	15,789
Mortgage Portfolio Segment | Financing Receivables, 30 to 59 Days Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	2,109	761
Mortgage Portfolio Segment | Financing Receivables, 30 to 59 Days Past Due | Multi-Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	0	206
Mortgage Portfolio Segment | Financing Receivables, 30 to 59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	0	0
Mortgage Portfolio Segment | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	4,455	9,550
Mortgage Portfolio Segment | Financing Receivables, 60 to 89 Days Past Due | Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	4,455	8,852
Mortgage Portfolio Segment | Financing Receivables, 60 to 89 Days Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	0	113
Mortgage Portfolio Segment | Financing Receivables, 60 to 89 Days Past Due | Multi-Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	0	585
Mortgage Portfolio Segment | Financing Receivables, 60 to 89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	0	0
Mortgage Portfolio Segment | Financial Asset, Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	6,794,160	6,710,827
Mortgage Portfolio Segment | Financial Asset, Not Past Due | Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	1,237,084	1,260,746
Mortgage Portfolio Segment | Financial Asset, Not Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	3,532,995	3,425,810
Mortgage Portfolio Segment | Financial Asset, Not Past Due | Multi-Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	1,361,164	1,483,724
Mortgage Portfolio Segment | Financial Asset, Not Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	662,917	540,547
Commercial Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	2,354,199	2,567,470
Non-accrual	32,023	42,118
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	32,858	44,955
Non-accrual loans with no related allowance	27,101	15,541
Commercial Loans | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	660	1,658
Commercial Loans | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	175	1,179
Commercial Loans | Financial Asset, Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	2,321,341	2,522,515
Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	348,485	492,566
Non-accrual	1,883	2,283
Recorded Investment greater than 90 days accruing	0	0
Total Past Due	3,613	11,150
Non-accrual loans with no related allowance	1,639	2,283
Consumer Loans | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	458	4,348
Consumer Loans | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	1,272	4,519
Consumer Loans | Financial Asset, Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total gross loans	$ 344,872	$ 481,416

Loans Receivable and Allowanc_6

Loans Receivable and Allowance for Credit Losses (Schedule of Allowance for Loan Losses by Portfolio Segment) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 85,591	$ 75,143	$ 101,466	$ 55,525
Increase (decrease) due to the initial adoption of CECL - Retained earnings				7,920
Provision (benefit) charge to operations	(10,700)	10,900	(25,700)	25,600
Recoveries of loans previously charged-off	6,179	724	7,285	1,252
Loans charged-off	(111)	(508)	(2,092)	(4,038)
Balance at end of period	80,959	86,259	80,959	86,259
Mortgage Portfolio Segment
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	54,198	47,500	68,307	25,511
Increase (decrease) due to the initial adoption of CECL - Retained earnings				14,188
Provision (benefit) charge to operations	1,080	7,355	(12,387)	15,066
Recoveries of loans previously charged-off	191	16	467	108
Loans charged-off	0	0	(918)	(2)
Balance at end of period	55,469	54,871	55,469	54,871
Commercial Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	26,302	22,841	27,084	28,263
Increase (decrease) due to the initial adoption of CECL - Retained earnings				(9,974)
Provision (benefit) charge to operations	(10,814)	2,285	(11,281)	9,904
Recoveries of loans previously charged-off	5,790	605	6,317	918
Loans charged-off	(16)	(447)	(858)	(3,827)
Balance at end of period	21,262	25,284	21,262	25,284
Consumer Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	5,091	4,802	6,075	1,751
Increase (decrease) due to the initial adoption of CECL - Retained earnings				3,706
Provision (benefit) charge to operations	(966)	1,260	(2,032)	630
Recoveries of loans previously charged-off	198	103	501	226
Loans charged-off	(95)	(61)	(316)	(209)
Balance at end of period	$ 4,228	$ 6,104	$ 4,228	$ 6,104

Loans Receivable and Allowanc_7

Loans Receivable and Allowance for Credit Losses (Impact of ASC 326 Adoption) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses	$ 80,959	$ 85,591	$ 101,466	$ 86,259	$ 75,143	$ 55,525	$ 55,525
Mortgage Portfolio
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						25,511
Mortgage Portfolio | Residential
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						3,414
Mortgage Portfolio | Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						12,831
Mortgage Portfolio | Multifamily
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						3,374
Mortgage Portfolio | Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						5,892
Commercial Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses	21,262	26,302	27,084	25,284	22,841	28,263	28,263
Consumer Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses	$ 4,228	$ 5,091	$ 6,075	$ 6,104	$ 4,802	1,751	$ 1,751
Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						63,445
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						39,739
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio | Residential
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						8,950
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio | Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						17,118
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio | Multifamily
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						9,519
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio | Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						4,152
Cumulative Effect, Period of Adoption, Adjusted Balance | Commercial Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						18,254
Cumulative Effect, Period of Adoption, Adjusted Balance | Consumer Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						5,452
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						7,920
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						14,228
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio | Residential
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						5,536
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio | Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						4,287
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio | Multifamily
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						6,145
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio | Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						(1,740)
Cumulative Effect, Period of Adoption, Adjustment | Commercial Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						(10,009)
Cumulative Effect, Period of Adoption, Adjustment | Consumer Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses						$ 3,701

Loans Receivable and Allowanc_8

Loans Receivable and Allowance for Credit Losses (Summary of Loans Receivable by Portfolio Segment and Impairment Method) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 81,999	$ 86,046
Collectively evaluated for impairment	9,472,973	9,753,812
Total gross loans	9,554,972	9,839,858
Mortgage Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	55,390	48,783
Collectively evaluated for impairment	6,796,898	6,731,039
Total gross loans	6,852,288	6,779,822
Commercial Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	25,292	35,832
Collectively evaluated for impairment	2,328,907	2,531,638
Total gross loans	2,354,199	2,567,470
Consumer Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	1,317	1,431
Collectively evaluated for impairment	347,168	491,135
Total gross loans	$ 348,485	$ 492,566

Loans Receivable and Allowanc_9

Loans Receivable and Allowance for Credit Losses (Summary of Allowance for Loan Losses by Portfolio Segment and Impairment Classification) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 7,613		$ 8,974
Collectively evaluated for impairment	73,346		92,492
Total gross loans	80,959	$ 85,591	101,466	$ 86,259	$ 75,143	$ 55,525	$ 55,525
Mortgage Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	3,433		4,220
Collectively evaluated for impairment	52,036		64,087
Total gross loans	55,469	54,198	68,307	54,871	47,500		25,511
Commercial Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	4,145		4,715
Collectively evaluated for impairment	17,117		22,369
Total gross loans	21,262	26,302	27,084	25,284	22,841	28,263	28,263
Consumer Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	35		39
Collectively evaluated for impairment	4,193		6,036
Total gross loans	$ 4,228	$ 5,091	$ 6,075	$ 6,104	$ 4,802	$ 1,751	$ 1,751

Loans Receivable and Allowan_10

Loans Receivable and Allowance for Credit Losses (Schedule of Troubled Debt Restructurings) (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)counterparty	Jun. 30, 2020USD ($)counterparty	Jun. 30, 2021USD ($)counterparty	Jun. 30, 2020USD ($)counterparty
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | counterparty	2	3	5	5
Pre-Modification Outstanding Recorded  Investment	$ 1,751	$ 1,078	$ 3,111	$ 1,825
Post-Modification Outstanding Recorded Investment	$ 1,259	$ 997	$ 2,533	$ 1,712
Mortgage Portfolio
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | counterparty	1	1	1	1
Pre-Modification Outstanding Recorded  Investment	$ 171	$ 342	$ 171	$ 342
Post-Modification Outstanding Recorded Investment	$ 170	$ 283	$ 170	$ 283
Mortgage Portfolio | Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | counterparty	1	1	1	1
Pre-Modification Outstanding Recorded  Investment	$ 171	$ 342	$ 171	$ 342
Post-Modification Outstanding Recorded Investment	$ 170	$ 283	$ 170	$ 283
Commercial Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | counterparty	1	2	4	4
Pre-Modification Outstanding Recorded  Investment	$ 1,580	$ 736	$ 2,940	$ 1,483
Post-Modification Outstanding Recorded Investment	$ 1,089	$ 714	$ 2,363	$ 1,429

Loans Receivable and Allowan_11

Loans Receivable and Allowance for Credit Losses (Schedule of Trouble Debt Restructuring Subsequently Defaulted) (Detail) - SecurityLoan	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of payment defaults for loans modified as TDRs	0	0

Loans Receivable and Allowan_12

Loans Receivable and Allowance for Credit Losses (Summary of PCD Loans) (Detail) - SB One Bancorp $ in Thousands	Jul. 31, 2020USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross amortized cost basis at July 31, 2020	$ 315,784
Interest component of expected cash flows (accretable difference)	7,988
Fair value of PCD loans	307,796
Allowance for credit losses on PCD loans	(13,586)
Net PCD loans	$ 294,210

Loans Receivable and Allowan_13

Loans Receivable and Allowance for Credit Losses (Summary of Impaired Loans Receivable by Class) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Loans with no related allowance
Loans with no related allowance, Unpaid Principal Balance	$ 59,753	$ 48,672
Loans with no related allowance, Recorded Investment	50,358	43,683
Loans with no related allowance, Average Recorded Investment	50,718	40,411
Loans with no related allowance, Interest Income Recognized	359	667
Loans with an allowance recorded
Loans with an allowance recorded, Unpaid Principal Balance	36,288	48,455
Loans with an allowance recorded, Recorded Investment	31,641	42,363
Loans with an allowance recorded, Average Recorded Investment	35,722	26,352
Loans with an allowance recorded, Interest Income Recognized	422	1,208
Total impaired loans
Unpaid Principal Balance	96,041	97,127
Recorded Investment	81,999	86,046
Related Allowance	7,613	8,974
Average Recorded Investment	86,440	66,763
Interest Income Recognized	781	1,875
Mortgage Portfolio Segment
Loans with no related allowance
Loans with no related allowance, Unpaid Principal Balance	35,189	31,395
Loans with no related allowance, Recorded Investment	31,774	28,794
Loans with no related allowance, Average Recorded Investment	31,824	27,613
Loans with no related allowance, Interest Income Recognized	297	571
Loans with an allowance recorded
Loans with an allowance recorded, Unpaid Principal Balance	27,528	22,943
Loans with an allowance recorded, Recorded Investment	23,616	19,989
Loans with an allowance recorded, Average Recorded Investment	24,225	7,727
Loans with an allowance recorded, Interest Income Recognized	193	877
Total impaired loans
Unpaid Principal Balance	62,717	54,338
Recorded Investment	55,390	48,783
Related Allowance	3,433	4,220
Average Recorded Investment	56,049	35,340
Interest Income Recognized	490	1,448
Mortgage Portfolio Segment | Residential
Loans with no related allowance
Loans with no related allowance, Unpaid Principal Balance	12,489	13,981
Loans with no related allowance, Recorded Investment	9,832	11,380
Loans with no related allowance, Average Recorded Investment	9,923	11,587
Loans with no related allowance, Interest Income Recognized	226	511
Loans with an allowance recorded
Loans with an allowance recorded, Unpaid Principal Balance	8,059	7,950
Loans with an allowance recorded, Recorded Investment	7,725	7,506
Loans with an allowance recorded, Average Recorded Investment	7,773	7,604
Loans with an allowance recorded, Interest Income Recognized	137	307
Total impaired loans
Unpaid Principal Balance	20,548	21,931
Recorded Investment	17,557	18,886
Related Allowance	861	806
Average Recorded Investment	17,696	19,191
Interest Income Recognized	363	818
Mortgage Portfolio Segment | Commercial
Loans with no related allowance
Loans with no related allowance, Unpaid Principal Balance	20,500	17,414
Loans with no related allowance, Recorded Investment	19,752	17,414
Loans with no related allowance, Average Recorded Investment	19,774	16,026
Loans with no related allowance, Interest Income Recognized	48	60
Loans with an allowance recorded
Loans with an allowance recorded, Unpaid Principal Balance	18,305	14,993
Loans with an allowance recorded, Recorded Investment	14,727	12,483
Loans with an allowance recorded, Average Recorded Investment	15,284	123
Loans with an allowance recorded, Interest Income Recognized	24	570
Total impaired loans
Unpaid Principal Balance	38,805	32,407
Recorded Investment	34,479	29,897
Related Allowance	2,272	3,414
Average Recorded Investment	35,058	16,149
Interest Income Recognized	72	630
Mortgage Portfolio Segment | Multifamily
Loans with no related allowance
Loans with no related allowance, Unpaid Principal Balance	0	0
Loans with no related allowance, Recorded Investment	0	0
Loans with no related allowance, Average Recorded Investment	0	0
Loans with no related allowance, Interest Income Recognized	0	0
Loans with an allowance recorded
Loans with an allowance recorded, Unpaid Principal Balance	1,164	0
Loans with an allowance recorded, Recorded Investment	1,164	0
Loans with an allowance recorded, Average Recorded Investment	1,168	0
Loans with an allowance recorded, Interest Income Recognized	32	0
Total impaired loans
Unpaid Principal Balance	1,164	0
Recorded Investment	1,164	0
Related Allowance	300	0
Average Recorded Investment	1,168	0
Interest Income Recognized	32	0
Mortgage Portfolio Segment | Construction
Loans with no related allowance
Loans with no related allowance, Unpaid Principal Balance	2,200	0
Loans with no related allowance, Recorded Investment	2,190	0
Loans with no related allowance, Average Recorded Investment	2,127	0
Loans with no related allowance, Interest Income Recognized	23	0
Total impaired loans
Unpaid Principal Balance	2,200	0
Recorded Investment	2,190	0
Related Allowance	0	0
Average Recorded Investment	2,127	0
Interest Income Recognized	23	0
Commercial Loans
Loans with no related allowance
Loans with no related allowance, Unpaid Principal Balance	23,131	15,895
Loans with no related allowance, Recorded Investment	17,677	14,009
Loans with no related allowance, Average Recorded Investment	17,976	12,791
Loans with no related allowance, Interest Income Recognized	11	46
Loans with an allowance recorded
Loans with an allowance recorded, Unpaid Principal Balance	8,344	24,947
Loans with an allowance recorded, Recorded Investment	7,615	21,823
Loans with an allowance recorded, Average Recorded Investment	11,084	18,620
Loans with an allowance recorded, Interest Income Recognized	218	311
Total impaired loans
Unpaid Principal Balance	31,475	40,842
Recorded Investment	25,292	35,832
Related Allowance	4,145	4,715
Average Recorded Investment	29,060	31,411
Interest Income Recognized	229	357
Consumer Loans
Loans with no related allowance
Loans with no related allowance, Unpaid Principal Balance	1,433	1,382
Loans with no related allowance, Recorded Investment	907	880
Loans with no related allowance, Average Recorded Investment	918	7
Loans with no related allowance, Interest Income Recognized	51	50
Loans with an allowance recorded
Loans with an allowance recorded, Unpaid Principal Balance	416	565
Loans with an allowance recorded, Recorded Investment	410	551
Loans with an allowance recorded, Average Recorded Investment	413	5
Loans with an allowance recorded, Interest Income Recognized	11	20
Total impaired loans
Unpaid Principal Balance	1,849	1,947
Recorded Investment	1,317	1,431
Related Allowance	35	39
Average Recorded Investment	1,331	12
Interest Income Recognized	$ 62	$ 70

Loans Receivable and Allowan_14

Loans Receivable and Allowance for Credit Losses (Summary of Loans Receivable by Credit Quality Risk Rating Indicator) (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 9,554,972	$ 9,839,858
2021	901,803
2020	1,766,330
2019	1,556,251
2018	1,095,610
2017 and prior	$ 4,234,978
Period of payment performance	6 months
Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 490,122	605,963
2021	8,598
2020	4,420
2019	66,309
2018	53,232
2017 and prior	357,563
Criticized and classified loans, gross	7,300
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	254,243	340,617
2021	0
2020	2,293
2019	53,059
2018	12,037
2017 and prior	186,853
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	235,539	265,294
2021	8,598
2020	2,127
2019	13,250
2018	41,195
2017 and prior	170,370
Restructured loan	8,500
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	340	52
2021	0
2020	0
2019	0
2018	0
2017 and prior	340
Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	9,064,850	9,233,895
2021	893,205
2020	1,761,910
2019	1,489,942
2018	1,042,378
2017 and prior	3,877,415
Mortgage Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	6,852,288	6,779,822
2021	471,653
2020	1,328,575
2019	1,271,190
2018	828,324
2017 and prior	2,952,546
Mortgage Portfolio Segment | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	263,191	313,126
2021	0
2020	1,980
2019	49,022
2018	41,320
2017 and prior	170,869
Mortgage Portfolio Segment | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	151,190	181,670
2021	0
2020	1,980
2019	46,864
2018	8,866
2017 and prior	93,480
Mortgage Portfolio Segment | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	111,666	131,456
2021	0
2020	0
2019	2,158
2018	32,454
2017 and prior	77,054
Mortgage Portfolio Segment | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	335	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	335
Mortgage Portfolio Segment | Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Mortgage Portfolio Segment | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	6,589,097	6,466,696
2021	471,653
2020	1,326,595
2019	1,222,168
2018	787,004
2017 and prior	2,781,677
Mortgage Portfolio Segment | Residential
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,253,824	1,294,702
2021	155,340
2020	252,991
2019	135,794
2018	76,979
2017 and prior	632,720
Mortgage Portfolio Segment | Residential | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	18,461	29,533
2021	0
2020	0
2019	1,137
2018	1,700
2017 and prior	15,624
Mortgage Portfolio Segment | Residential | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	4,000	2,882
2021	0
2020	0
2019	658
2018	0
2017 and prior	3,342
Mortgage Portfolio Segment | Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	14,461	26,651
2021	0
2020	0
2019	479
2018	1,700
2017 and prior	12,282
Mortgage Portfolio Segment | Residential | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Mortgage Portfolio Segment | Residential | Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Mortgage Portfolio Segment | Residential | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,235,363	1,265,169
2021	155,340
2020	252,991
2019	134,657
2018	75,279
2017 and prior	617,096
Mortgage Portfolio Segment | Commercial
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	3,571,416	3,458,666
2021	219,812
2020	635,144
2019	651,787
2018	415,819
2017 and prior	1,648,854
Mortgage Portfolio Segment | Commercial | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	204,306	222,944
2021	0
2020	0
2019	29,226
2018	36,653
2017 and prior	138,427
Mortgage Portfolio Segment | Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	112,331	124,631
2021	0
2020	0
2019	28,711
2018	8,866
2017 and prior	74,754
Mortgage Portfolio Segment | Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	91,640	98,313
2021	0
2020	0
2019	515
2018	27,787
2017 and prior	63,338
Mortgage Portfolio Segment | Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	335	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	335
Mortgage Portfolio Segment | Commercial | Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Mortgage Portfolio Segment | Commercial | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	3,367,110	3,235,722
2021	219,812
2020	635,144
2019	622,561
2018	379,166
2017 and prior	1,510,427
Mortgage Portfolio Segment | Multi-Family
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,361,164	1,484,515
2021	51,777
2020	294,274
2019	177,947
2018	193,344
2017 and prior	643,822
Mortgage Portfolio Segment | Multi-Family | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	11,423	31,349
2021	0
2020	0
2019	1,840
2018	0
2017 and prior	9,583
Mortgage Portfolio Segment | Multi-Family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	8,825	29,781
2021	0
2020	0
2019	676
2018	0
2017 and prior	8,149
Mortgage Portfolio Segment | Multi-Family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2,598	1,568
2021	0
2020	0
2019	1,164
2018	0
2017 and prior	1,434
Mortgage Portfolio Segment | Multi-Family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Mortgage Portfolio Segment | Multi-Family | Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Mortgage Portfolio Segment | Multi-Family | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,349,741	1,453,166
2021	51,777
2020	294,274
2019	176,107
2018	193,344
2017 and prior	634,239
Mortgage Portfolio Segment | Construction
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	665,884	541,939
2021	44,724
2020	146,166
2019	305,662
2018	142,182
2017 and prior	27,150
Mortgage Portfolio Segment | Construction | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	29,001	29,300
2021	0
2020	1,980
2019	16,819
2018	2,967
2017 and prior	7,235
Mortgage Portfolio Segment | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	26,034	24,376
2021	0
2020	1,980
2019	16,819
2018	0
2017 and prior	7,235
Mortgage Portfolio Segment | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2,967	4,924
2021	0
2020	0
2019	0
2018	2,967
2017 and prior	0
Mortgage Portfolio Segment | Construction | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Mortgage Portfolio Segment | Construction | Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Mortgage Portfolio Segment | Construction | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	636,883	512,639
2021	44,724
2020	144,186
2019	288,843
2018	139,215
2017 and prior	19,915
Commercial Loans
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2,354,199	2,567,470
2021	406,351
2020	401,240
2019	243,077
2018	228,736
2017 and prior	1,074,795
Commercial Loans | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	223,794	284,224
2021	8,598
2020	2,440
2019	17,196
2018	11,737
2017 and prior	183,823
Commercial Loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	101,830	157,080
2021	0
2020	313
2019	6,195
2018	2,996
2017 and prior	92,326
Commercial Loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	121,959	127,092
2021	8,598
2020	2,127
2019	11,001
2018	8,741
2017 and prior	91,492
Commercial Loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	5	52
2021	0
2020	0
2019	0
2018	0
2017 and prior	5
Commercial Loans | Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Commercial Loans | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2,130,405	2,283,246
2021	397,753
2020	398,800
2019	225,881
2018	216,999
2017 and prior	890,972
Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	348,485	492,566
2021	23,799
2020	36,515
2019	41,984
2018	38,550
2017 and prior	207,637
Consumer Loans | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	3,137	8,613
2021	0
2020	0
2019	91
2018	175
2017 and prior	2,871
Consumer Loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,223	1,867
2021	0
2020	0
2019	0
2018	175
2017 and prior	1,047
Consumer Loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,914	6,746
2021	0
2020	0
2019	91
2018	0
2017 and prior	1,824
Consumer Loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Consumer Loans | Loss
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
2021	0
2020	0
2019	0
2018	0
2017 and prior	0
Consumer Loans | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	345,348	$ 483,953
2021	23,799
2020	36,515
2019	41,893
2018	38,375
2017 and prior	$ 204,766

Deposits (Detail)

Deposits (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Banking and Thrift, Other Disclosures [Abstract]
Savings	$ 1,418,354	$ 1,348,147
Money market	2,413,046	2,245,412
NOW	3,386,064	2,808,637
Non-interest bearing	2,530,468	2,341,459
Certificates of deposit	842,052	1,094,174
Total deposits	$ 10,589,984	$ 9,837,829

Components of Net Periodic Be_3

Components of Net Periodic Benefit Cost (Narrative) (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2006	Dec. 31, 2002
Retirement Benefits [Abstract]
Service period for employees of coverage age, years (at least)	1 year
Defined benefit plan, percentage vested	100.00%
Retiree benefits eliminated if less than service period, years (less than)		10 years	10 years
Defined benefit plan, contributions by employer	$ 0

Components of Net Periodic Be_4

Components of Net Periodic Benefit Cost (Benefit Cost (Increase) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Pension benefits
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	198	250	396	500
Expected return on plan assets	(807)	(737)	(1,614)	(1,474)
Amortization of prior service cost	0	0	0	0
Amortization of the net loss (gain)	118	174	236	348
Net periodic (decrease) increase in benefit cost	(491)	(313)	(982)	(626)
Other post-retirement benefits
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Service cost	9	20	18	40
Interest cost	106	178	212	356
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	0	0	0	0
Amortization of the net loss (gain)	(268)	(62)	(536)	(124)
Net periodic (decrease) increase in benefit cost	$ (153)	$ 136	$ (306)	$ 272

Allowance for Credit Losses o_3

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Jan. 01, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Provision for credit losses for off-balance sheet credit exposure	$ 6,200		$ 6,200		$ 5,000	$ 0
Retained earnings	775,235		775,235		$ 718,090
Credit loss expense for off-balance sheet credit exposures	$ 2,050	$ 5,289	$ 1,175	$ 6,289
Cumulative Effect, Period of Adoption, Adjusted Balance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Provision for credit losses for off-balance sheet credit exposure						3,206
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Provision for credit losses for off-balance sheet credit exposure						3,206
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Provision for credit losses for off-balance sheet credit exposure						3,200
Accounting Standards Update 2016-13, Effect On Off-Balance Sheet Items
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings						$ 2,400

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Detail) $ in Millions	Jun. 30, 2021USD ($)security	Dec. 31, 2020USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted cash | $	$ 58.4	$ 114.3
Minimum | Measurement Input, Cost to Sell | Valuation, Market Approach
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans, measurement input	0.05
Foreclosed assets, measurement input	0.05
Maximum | Measurement Input, Cost to Sell | Valuation, Market Approach
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans, measurement input	0.10
Foreclosed assets, measurement input	0.10

Fair Value Measurements (Assets

Fair Value Measurements (Assets and Liabilities) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	$ 1,556,613	$ 1,105,489
Equity securities	1,094	971
Derivative liabilities	59,500
Foreclosed assets	2,350	4,475
Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	99,969	1,009
Equity securities	1,094	971
Derivative assets	0	0
Derivative liabilities	0	0
Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	1,456,644	1,104,480
Equity securities	0	0
Derivative assets	81,459	101,079
Derivative liabilities	84,827	109,148
Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Equity securities	0	0
Derivative assets	0	0
Derivative liabilities	0	0
U.S. Treasury obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	99,969
Agency Obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	1,009
Agency Obligations | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Agency Obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	1,298,968	938,413
Mortgage-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Mortgage-backed securities | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	1,298,968	938,413
Mortgage-backed securities | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	48,550	53,830
Asset-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:
Asset-backed securities | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	48,550	53,830
Asset-backed securities | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:
State and municipal obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	70,363	71,258
State and municipal obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
State and municipal obligations | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	70,363	71,258
State and municipal obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Corporate obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	38,763	40,979
Corporate obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Corporate obligations | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	38,763	40,979
Corporate obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Recurring Basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	1,556,613	1,105,489
Equity securities	1,094	971
Derivative assets	81,459	101,079
Total assets acquired	1,639,166	1,207,539
Derivative liabilities	84,827	109,148
Measured on a Recurring Basis | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	99,969	1,009
Equity securities	1,094	971
Derivative assets	0	0
Total assets acquired	101,063	1,980
Derivative liabilities	0	0
Measured on a Recurring Basis | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	1,456,644	1,104,480
Equity securities	0	0
Derivative assets	81,459	101,079
Total assets acquired	1,538,103	1,205,559
Derivative liabilities	84,827	109,148
Measured on a Recurring Basis | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Equity securities	0	0
Derivative assets	0	0
Total assets acquired	0	0
Derivative liabilities	0	0
Measured on a Recurring Basis | U.S. Treasury obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	99,969
Measured on a Recurring Basis | U.S. Treasury obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	99,969
Measured on a Recurring Basis | U.S. Treasury obligations | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0
Measured on a Recurring Basis | U.S. Treasury obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0
Measured on a Recurring Basis | Agency Obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:		1,009
Measured on a Recurring Basis | Agency Obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:		1,009
Measured on a Recurring Basis | Agency Obligations | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:		0
Measured on a Recurring Basis | Agency Obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:		0
Measured on a Recurring Basis | Mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	1,298,968	938,413
Measured on a Recurring Basis | Mortgage-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Recurring Basis | Mortgage-backed securities | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	1,298,968	938,413
Measured on a Recurring Basis | Mortgage-backed securities | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Recurring Basis | Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	48,550	53,830
Measured on a Recurring Basis | Asset-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Recurring Basis | Asset-backed securities | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	48,550	53,830
Measured on a Recurring Basis | Asset-backed securities | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Recurring Basis | State and municipal obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	70,363	71,258
Measured on a Recurring Basis | State and municipal obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Recurring Basis | State and municipal obligations | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	70,363	71,258
Measured on a Recurring Basis | State and municipal obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Recurring Basis | Corporate obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	38,763	40,979
Measured on a Recurring Basis | Corporate obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Recurring Basis | Corporate obligations | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	38,763	40,979
Measured on a Recurring Basis | Corporate obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities:	0	0
Measured on a Non-Recurring Basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets acquired	24,056	30,725
Loans measured for impairment based on the fair value of the underlying collateral	21,706	26,250
Foreclosed assets	2,350	4,475
Measured on a Non-Recurring Basis | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets acquired	0	0
Loans measured for impairment based on the fair value of the underlying collateral	0	0
Foreclosed assets	0	0
Measured on a Non-Recurring Basis | Significant Other Observable  Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets acquired	0	0
Loans measured for impairment based on the fair value of the underlying collateral	0	0
Foreclosed assets	0	0
Measured on a Non-Recurring Basis | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets acquired	24,056	30,725
Loans measured for impairment based on the fair value of the underlying collateral	21,706	26,250
Foreclosed assets	$ 2,350	$ 4,475

Fair Value Measurements (Financ

Fair Value Measurements (Financial Instruments) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financial assets:
Cash and cash equivalents	$ 710,153	$ 532,353
Available for sale debt securities, at fair value	1,556,613	1,105,489
Investment securities held to maturity, fair value	454,241	472,529
Federal Home Loan Bank stock	37,415	59,489
Equity securities	1,094	971
Loans, net of allowance for credit losses	9,458,903	9,721,424
Financial liabilities:
Certificates of deposit	842,052	1,094,174
Total deposits	10,589,984	9,837,829
Borrowed funds	693,337	1,175,972
Subordinated debentures	25,211	25,135
Derivative liabilities	59,500
Quoted Prices in Active  Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	710,153	532,353
Available for sale debt securities, at fair value	99,969	1,009
Investment securities held to maturity, fair value	10,143	7,601
Federal Home Loan Bank stock	37,415	59,489
Equity securities	1,094	971
Loans, net of allowance for credit losses	0	0
Derivative assets	0	0
Financial liabilities:
Deposits other than certificates of deposits	9,747,932	8,743,655
Certificates of deposit	0	0
Total deposits	9,747,932	8,743,655
Borrowed funds	0	0
Subordinated debentures	0	0
Derivative liabilities	0	0
Significant Other Observable  Inputs (Level 2)
Financial assets:
Cash and cash equivalents	0	0
Available for sale debt securities, at fair value	1,456,644	1,104,480
Investment securities held to maturity, fair value	444,098	464,928
Federal Home Loan Bank stock	0	0
Equity securities	0	0
Loans, net of allowance for credit losses	0	0
Derivative assets	81,459	101,079
Financial liabilities:
Deposits other than certificates of deposits	0	0
Certificates of deposit	845,410	1,097,993
Total deposits	845,410	1,097,993
Borrowed funds	697,982	1,193,024
Subordinated debentures	30,088	24,375
Derivative liabilities	84,827	109,148
Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	0	0
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
Federal Home Loan Bank stock	0	0
Equity securities	0	0
Loans, net of allowance for credit losses	9,623,991	9,969,330
Derivative assets	0	0
Financial liabilities:
Deposits other than certificates of deposits	0	0
Certificates of deposit	0	0
Total deposits	0	0
Borrowed funds	0	0
Subordinated debentures	0	0
Derivative liabilities	0	0
U.S. Treasury obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Financial assets:
Available for sale debt securities, at fair value	99,969	0
U.S. Treasury obligations | Significant Other Observable  Inputs (Level 2)
Financial assets:
Available for sale debt securities, at fair value	0	0
U.S. Treasury obligations | Significant Unobservable Inputs (Level 3)
Financial assets:
Available for sale debt securities, at fair value	0	0
Agency Obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Financial assets:
Available for sale debt securities, at fair value	0	1,009
Investment securities held to maturity, fair value	10,143	7,601
Agency Obligations | Significant Other Observable  Inputs (Level 2)
Financial assets:
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
Agency Obligations | Significant Unobservable Inputs (Level 3)
Financial assets:
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
Mortgage-backed securities
Financial assets:
Available for sale debt securities, at fair value	1,298,968	938,413
Investment securities held to maturity, fair value	39	64
Mortgage-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Financial assets:
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
Mortgage-backed securities | Significant Other Observable  Inputs (Level 2)
Financial assets:
Available for sale debt securities, at fair value	1,298,968	938,413
Investment securities held to maturity, fair value	39	64
Mortgage-backed securities | Significant Unobservable Inputs (Level 3)
Financial assets:
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
Asset-backed securities
Financial assets:
Available for sale debt securities, at fair value	48,550	53,830
Asset-backed securities | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Financial assets:
Available for sale debt securities, at fair value
Asset-backed securities | Significant Other Observable  Inputs (Level 2)
Financial assets:
Available for sale debt securities, at fair value	48,550	53,830
Asset-backed securities | Significant Unobservable Inputs (Level 3)
Financial assets:
Available for sale debt securities, at fair value
State and municipal obligations
Financial assets:
Available for sale debt securities, at fair value	70,363	71,258
Investment securities held to maturity, fair value	434,316	455,039
State and municipal obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Financial assets:
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
State and municipal obligations | Significant Other Observable  Inputs (Level 2)
Financial assets:
Available for sale debt securities, at fair value	70,363	71,258
Investment securities held to maturity, fair value	434,316	455,039
State and municipal obligations | Significant Unobservable Inputs (Level 3)
Financial assets:
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
Corporate obligations
Financial assets:
Available for sale debt securities, at fair value	38,763	40,979
Investment securities held to maturity, fair value	9,743	9,825
Corporate obligations | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Financial assets:
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
Corporate obligations | Significant Other Observable  Inputs (Level 2)
Financial assets:
Available for sale debt securities, at fair value	38,763	40,979
Investment securities held to maturity, fair value	9,743	9,825
Corporate obligations | Significant Unobservable Inputs (Level 3)
Financial assets:
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity, fair value	0	0
Carrying Value
Financial assets:
Cash and cash equivalents	710,153	532,353
Available for sale debt securities, at fair value	1,556,613	1,105,489
Investment securities held to maturity, fair value	437,704	450,965
Federal Home Loan Bank stock	37,415	59,489
Equity securities	1,094	971
Loans, net of allowance for credit losses	9,458,903	9,721,424
Derivative assets	81,459	101,079
Financial liabilities:
Deposits other than certificates of deposits	9,747,932	8,743,655
Certificates of deposit	842,052	1,094,174
Total deposits	10,589,984	9,837,829
Borrowed funds	693,337	1,175,972
Subordinated debentures	25,211	25,135
Derivative liabilities	84,827	109,148
Carrying Value | U.S. Treasury obligations
Financial assets:
Available for sale debt securities, at fair value	99,969
Carrying Value | Agency Obligations
Financial assets:
Available for sale debt securities, at fair value	0	1,009
Investment securities held to maturity, fair value	10,198	7,600
Carrying Value | Mortgage-backed securities
Financial assets:
Available for sale debt securities, at fair value	1,298,968	938,413
Investment securities held to maturity, fair value	38	62
Carrying Value | Asset-backed securities
Financial assets:
Available for sale debt securities, at fair value	48,550	53,830
Carrying Value | State and municipal obligations
Financial assets:
Available for sale debt securities, at fair value	70,363	71,258
Investment securities held to maturity, fair value	417,739	433,589
Carrying Value | Corporate obligations
Financial assets:
Available for sale debt securities, at fair value	38,763	40,979
Investment securities held to maturity, fair value	9,729	9,714
Fair Value
Financial assets:
Cash and cash equivalents	710,153	532,353
Available for sale debt securities, at fair value	1,556,613	1,105,489
Investment securities held to maturity, fair value	454,241	472,529
Federal Home Loan Bank stock	37,415	59,489
Equity securities	1,094	971
Loans, net of allowance for credit losses	9,623,991	9,969,330
Derivative assets	81,459	101,079
Financial liabilities:
Deposits other than certificates of deposits	9,747,932	8,743,655
Certificates of deposit	845,410	1,097,993
Total deposits	10,593,342	9,841,648
Borrowed funds	697,982	1,193,024
Subordinated debentures	30,088	24,375
Derivative liabilities	84,827	109,148
Fair Value | U.S. Treasury obligations
Financial assets:
Available for sale debt securities, at fair value	99,969	0
Fair Value | Agency Obligations
Financial assets:
Available for sale debt securities, at fair value	0	1,009
Investment securities held to maturity, fair value	10,143	7,601
Fair Value | Mortgage-backed securities
Financial assets:
Available for sale debt securities, at fair value	1,298,968	938,413
Investment securities held to maturity, fair value	39	64
Fair Value | Asset-backed securities
Financial assets:
Available for sale debt securities, at fair value	48,550	53,830
Fair Value | State and municipal obligations
Financial assets:
Available for sale debt securities, at fair value	70,363	71,258
Investment securities held to maturity, fair value	434,316	455,039
Fair Value | Corporate obligations
Financial assets:
Available for sale debt securities, at fair value	38,763	40,979
Investment securities held to maturity, fair value	$ 9,743	$ 9,825

Other Comprehensive Income (Com

Other Comprehensive Income (Components of OCI) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Unrealized gains and losses on available for sale debt securities:
Net unrealized (losses) gains arising during the period	$ 3,288	$ (1,252)	$ (8,865)	$ 21,310
Reclassification adjustment for gains included in net income	0	0	(230)	0
Total	3,288	(1,252)	(9,095)	21,310
Unrealized gains (losses) on derivatives (cash flow hedges)	(1,649)	(1,730)	4,577	(9,427)
Amortization related to post-retirement obligations	(150)	95	(300)	207
Total other comprehensive (loss) income	1,489	(2,887)	(4,818)	12,090
Unrealized gains and losses on available for sale debt securities:
Net unrealized (losses) gains arising during the period	(848)	322	2,286	(5,494)
Reclassification adjustment for gains included in net income	0	0	59	0
Total	(848)	322	2,345	(5,494)
Unrealized gains (losses) on derivatives (cash flow hedges)	425	446	(1,180)	2,430
Amortization related to post-retirement obligations	39	(25)	80	(53)
Total other comprehensive (loss) income	(384)	743	1,245	(3,117)
Unrealized gains and losses on available for sale debt securities:
Net unrealized (losses) gains arising during the period	2,440	(930)	(6,579)	15,816
Reclassification adjustment for gains included in net income	0	0	(171)	0
Total	2,440	(930)	(6,750)	15,816
Unrealized gains (losses) on derivatives (cash flow hedges)	(1,224)	(1,284)	3,397	(6,997)
Amortization related to post-retirement obligations	(111)	70	(220)	154
Total other comprehensive (loss) income	$ 1,105	$ (2,144)	$ (3,573)	$ 8,973

Other Comprehensive Income (C_2

Other Comprehensive Income (Components of AOCI) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 1,647,231	$ 1,412,589	$ 1,619,797	$ 1,413,840
Current - period other comprehensive (loss) income	1,105	(2,144)	(3,573)	8,973
Ending Balance	1,677,634	1,410,407	1,677,634	1,410,407
Unrealized Gains (Losses) on Available for Sale Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	14,500	25,492	23,690	8,746
Current - period other comprehensive (loss) income	2,440	(930)	(6,750)	15,816
Ending Balance	16,940	24,562	16,940	24,562
Post- Retirement Obligations
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(1,190)	(5,156)	(1,081)	(5,240)
Current - period other comprehensive (loss) income	(111)	70	(220)	154
Ending Balance	(1,301)	(5,086)	(1,301)	(5,086)
Unrealized (Losses) Gains on Derivatives (cash flow hedges)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(333)	(5,398)	(4,954)	315
Current - period other comprehensive (loss) income	(1,224)	(1,284)	3,397	(6,997)
Ending Balance	(1,557)	(6,682)	(1,557)	(6,682)
Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	12,977	14,938	17,655	3,821
Current - period other comprehensive (loss) income	1,105	(2,144)	(3,573)	8,973
Ending Balance	$ 14,082	$ 12,794	$ 14,082	$ 12,794

Other Comprehensive Income (Rec

Other Comprehensive Income (Reclassifications Out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net gain on securities transactions	$ (34)	$ (44)	$ (231)	$ (55)
Income tax expense	15,278	3,715	31,504	8,972
Total reclassification	(44,789)	(14,311)	(93,348)	(29,242)
Compensation and employee benefits	34,871	29,200	70,183	60,395
Unrealized Gains (Losses) on Available for Sale Debt Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net gain on securities transactions	(150)	112	(230)	0
Income tax expense	39	(29)	59	0
Total reclassification	$ (111)	$ 83	(171)	0
Reclassification adjustment | Post-retirement obligations
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income tax expense			80	(58)
Total reclassification			(220)	166
Compensation and employee benefits			$ (300)	$ 224

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities (Narrative) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021USD ($)instrumentcounterparty	Dec. 31, 2020USD ($)instrument
Derivative [Line Items]
Derivative instruments in accumulated other comprehensive income reclassified to interest expense	$ 3,500
Derivative liability, notional amount	$ 600,000
Number of counterparties | counterparty	4
Counterparty in liability position | counterparty	4
Derivative liabilities	$ 59,500
Collateral against obligations	57,800
Derivatives Not Designated as a Hedging Instruments
Derivative [Line Items]
Credit derivatives, fair value	$ 131	$ 97
Derivatives Not Designated as a Hedging Instruments | Interest rate products
Derivative [Line Items]
Number of derivative instruments held (in instrument) | instrument	170	172
Derivative notional amount	$ 2,550,000	$ 2,630,000
Derivatives Not Designated as a Hedging Instruments | Credit contracts
Derivative [Line Items]
Number of derivative instruments held (in instrument) | instrument	13
Derivative notional amount	$ 136,400	$ 121,700
Amount of collateral	$ 650
Designated as Hedging Instrument
Derivative [Line Items]
Number of outstanding derivatives | instrument	14

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities (Fair Value) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivatives Not Designated as a Hedging Instruments
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 76,441	$ 107,749
Liability derivatives	77,716	109,148
Derivatives Not Designated as a Hedging Instruments | Other Assets | Interest rate products
Derivatives, Fair Value [Line Items]
Asset derivatives	76,310	107,652
Derivatives Not Designated as a Hedging Instruments | Other Assets | Credit contracts
Derivatives, Fair Value [Line Items]
Asset derivatives	131	97
Derivatives Not Designated as a Hedging Instruments | Other Liabilities | Interest rate products
Derivatives, Fair Value [Line Items]
Liability derivatives	77,716	109,148
Derivatives Not Designated as a Hedging Instruments | Other Liabilities | Credit contracts
Derivatives, Fair Value [Line Items]
Liability derivatives	0	0
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset derivatives	5,018	(6,671)
Liability derivatives	7,111	0
Designated as Hedging Instrument | Other Assets | Interest rate products
Derivatives, Fair Value [Line Items]
Asset derivatives	5,018	(6,671)
Designated as Hedging Instrument | Other Liabilities | Interest rate products
Derivatives, Fair Value [Line Items]
Liability derivatives	$ 7,111	$ 0

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities (Gains and Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivatives Not Designated as a Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ (299)	$ (229)	$ 124	$ (1,050)
Derivatives Not Designated as a Hedging Instruments | Interest rate products | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	(323)	(229)	77	(1,049)
Derivatives Not Designated as a Hedging Instruments | Credit contracts | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	24	0	47	(1)
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	947	126	1,826	21
Designated as Hedging Instrument | Interest rate products | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ 947	$ 126	$ 1,826	$ 21

Revenue Recognition (Summary of

Revenue Recognition (Summary of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Percentage of total revenue excluded from adoption of 606	82.60%	85.00%	82.50%	84.40%
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 15,361	$ 9,313	$ 29,499	$ 19,750
Total out-of-scope non-interest income	5,795	5,052	13,294	11,606
Total non-interest income	21,156	14,365	42,793	31,356
Wealth management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	7,859	5,977	14,993	12,228
Insurance agency income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2,849	0	5,576	0
Banking service charges and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	4,653	3,336	8,930	7,522
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2,555	2,071	5,054	5,047
Debit card and ATM fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 2,098	$ 1,265	$ 3,876	$ 2,475

Leases (Additional Information)

Leases (Additional Information) (Detail)	Jun. 30, 2021
Leases [Abstract]
Weighted-average remaining lease term	8 years 9 months 18 days
Weighted-average discount rate	3.09%

Leases (Supplemental Balance Sh

Leases (Supplemental Balance Sheet Information) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease, right-of-use asset, statement of financial position [Extensible List]	Other assets	Other assets
Operating lease, liability, statement of financial position [Extensible List]	Other liabilities	Other liabilities
Operating lease right-of-use assets	$ 40,372	$ 41,142
Operating lease liabilities	$ 41,523	$ 42,042

Leases (Supplemental Cash Flow

Leases (Supplemental Cash Flow and Lease Cost Information) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash Flow, Operating Activities, Lessee [Abstract]
Operating lease cost	$ 2,330	$ 2,132	$ 5,142	$ 4,262
Variable lease cost	717	724	1,519	1,330
Total lease cost	$ 3,047	$ 2,856	6,661	5,592
Operating cash flows from operating leases			$ 4,575	$ 4,247

Leases (Future Minimum Payments

Leases (Future Minimum Payments) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Remainder of 2021	$ 4,347
2022	6,613
2023	6,102
2024	5,700
2025	5,114
Thereafter	20,120
Total future minimum lease payments	47,996
Amounts representing interest	6,473
Present value of net future minimum lease payments	$ 41,523	$ 42,042

Uncategorized Items - pfs-20210

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]