Provident Financial Services (PFS) 10-K 1 Mar 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Feb. 01, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-31566
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 Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		77,789,018
Entity Public Float			$ 1,060
Documents Incorporated by Reference	Proxy Statement for the 2021 Annual Meeting of Stockholders of the Registrant (Part III).
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0001178970

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 404,355	$ 131,555
Short-term investments	127,998	55,193
Total cash and cash equivalents	532,353	186,748
Available for sale debt securities, at fair value	1,105,489	976,919
Held to maturity debt securities, net (fair value of $472,451 and $467,966 at December 31, 2020 and December 31, 2019, respectively).	450,965	453,629
Equity securities, at fair value	971	825
Federal Home Loan Bank Stock	59,489	57,298
Loans	9,822,890	7,332,885
Less allowance for credit losses	101,466	55,525
Net loans	9,721,424	7,277,360
Foreclosed assets, net	4,475	2,715
Banking premises and equipment, net	75,946	55,210
Accrued interest receivable	46,450	29,031
Intangible assets	466,212	437,019
Bank-owned life insurance	234,607	195,533
Other assets	221,360	136,291
Total assets	12,919,741	9,808,578
Deposits:
Demand deposits	7,395,508	5,384,868
Savings deposits	1,348,147	983,714
Certificates of deposit of $100 thousand or more	717,216	438,551
Other time deposits	376,958	295,476
Total deposits	9,837,829	7,102,609
Mortgage escrow deposits	34,298	26,804
Borrowed funds	1,175,972	1,125,146
Other liabilities	226,710	140,179
Total liabilities	11,299,944	8,394,738
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 77,611,107 shares outstanding at December 31, 2020, and 83,209,283 shares issued and 65,787,900 shares outstanding at December 31, 2019, respectively.	832	832
Additional paid-in capital	962,453	1,007,303
Retained earnings	718,090	695,273
Accumulated other comprehensive income	17,655	3,821
Treasury stock	(59,018)	(268,504)
Unallocated common stock held by the Employee Stock Ownership Plan	(20,215)	(24,885)
Common stock acquired by deferred compensation plans	(4,549)	(3,833)
Deferred compensation plans	4,549	3,833
Total stockholders’ equity	1,619,797	1,413,840
Total liabilities and stockholders’ equity	$ 12,919,741	$ 9,808,578

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Investment securities held to maturity, fair value	$ 472,451	$ 467,966
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	83,209,283
Common stock, shares outstanding (in shares)	77,611,107	65,787,900

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest income:
Real estate secured loans	$ 224,925	$ 223,361	$ 215,231
Commercial loans	82,157	82,540	79,371
Consumer loans	16,922	18,579	19,906
Available for sale debt securities and Federal Home Loan Bank Stock	25,446	31,842	30,981
Held to maturity debt securities	11,461	12,424	12,606
Deposits, federal funds sold and other short-term investments	2,398	2,724	1,734
Total interest income	363,309	371,470	359,829
Interest expense:
Deposits	33,589	45,494	30,693
Borrowed funds	16,638	28,003	28,460
Subordinated debentures	512	0	0
Total interest expense	50,739	73,497	59,153
Net interest income	312,570	297,973	300,676
Provision for credit losses	29,719	13,100	23,700
Net interest income after provision for credit losses	282,851	284,873	276,976
Non-interest income:
Fees	23,847	28,321	28,084
Wealth management income	25,733	22,503	17,957
Insurance agency income	3,513
Bank-owned life insurance	6,491	6,297	5,514
Net gain on securities transactions	81	72	2,221
Other income	12,766	6,601	4,900
Total non-interest income	72,431	63,794	58,676
Non-interest expense:
Compensation and employee benefits	130,868	116,849	111,496
Net occupancy expense	27,142	25,895	25,056
Data processing expense	20,767	16,836	14,664
FDIC Insurance	3,116	1,316	3,482
Advertising and promotion expense	4,400	4,115	3,836
Provision for credit loss for off-balance sheet credit exposure	1,814	0	0
Amortization of intangibles	3,425	2,740	2,127
Other operating expenses	36,196	33,828	31,074
Total non-interest expenses	227,728	201,579	191,735
Income before income tax expense	127,554	147,088	143,917
Income tax expense	30,603	34,455	25,530
Net income	$ 96,951	$ 112,633	$ 118,387
Basic earnings per share (in dollars per share)	$ 1.39	$ 1.74	$ 1.82
Average basic shares outstanding (in shares)	69,548,499	64,604,224	64,942,886
Diluted earnings per share (in dollars per share)	$ 1.39	$ 1.74	$ 1.82
Average diluted shares outstanding (in shares)	69,625,958	64,734,591	65,103,097

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 96,951	$ 112,633	$ 118,387
Unrealized gains and losses on available for sale debt securities:
Net unrealized gains (losses) arising during the period	14,944	18,351	(6,129)
Reclassification adjustment for gains (losses) included in net income	0	0	0
Total	14,944	18,351	(6,129)
Unrealized (losses) gains on derivatives (cash flow hedges)	(5,269)	(579)
Unrealized (losses) gains on derivatives (cash flow hedges)			221
Amortization related to post-retirement obligations	4,159	(1,615)	1,221
Total other comprehensive income (loss)	13,834	16,157	(4,687)
Total comprehensive income	$ 110,785	$ 128,790	$ 113,700

Consolidated Statement of Chang

Consolidated Statement 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 Loss	Accumulated Other Comprehensive LossCumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Unallocated ESOP Shares	Common Stock Acquired By DDFP	Deferred Compensation DDFP
Balance at the beginning of the period at Dec. 31, 2017	$ 1,298,661	$ 0	$ 832	$ 1,012,908	$ 586,132	$ 184	$ (7,465)	$ (184)	$ (259,907)	$ (33,839)	$ (5,175)	$ 5,175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	118,387				118,387
Other comprehensive loss, net of tax	(4,687)						(4,687)
Cash dividends paid	(53,604)				(53,604)
Distributions from DDFP	156			156							671	(671)
Purchases of treasury stock	(13,172)								(13,172)
Purchase of employee restricted shares to fund statutory tax withholding	(1,896)								(1,896)
Shares issued dividend reinvestment plan	1,709			577					1,132
Option exercises	1,007			(366)					1,373
Allocation of ESOP shares	6,183			2,022						4,161
Allocation of SAP shares	6,046			6,046
Allocation of stock options	190			190
Balance at the end of the period at Dec. 31, 2018	$ 1,358,980	4,350	832	1,021,533	651,099	4,350	(12,336)	$ 0	(272,470)	(29,678)	(4,504)	4,504
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201802Member
Net income	$ 112,633				112,633
Other comprehensive loss, net of tax	16,157						16,157
Cash dividends paid	(72,809)				(72,809)
Distributions from DDFP	164			164							671	(671)
Purchases of treasury stock	(19,867)								(19,867)
Purchase of employee restricted shares to fund statutory tax withholding	(1,985)								(1,985)
Shares issued dividend reinvestment plan	2,230			671					1,559
Option exercises	139			(96)					235
Allocation of ESOP shares	6,996			2,203						4,793
Allocation of SAP shares	6,671			6,671
Allocation of stock options	181			181
Reclass of stock award shares	0			(24,024)					24,024
Balance at the end of the period 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]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201601Member
Net income	$ 96,951				96,951
Other comprehensive loss, net of tax	13,834						13,834
Cash dividends paid	(65,823)				(65,823)
Distributions from DDFP	84			84							620	(620)
Purchases of treasury stock	(21,161)								(21,161)
Purchase of employee restricted shares to fund statutory tax withholding	(969)								(969)
Shares issued dividend reinvestment plan	451			50					401
Allocation of ESOP shares	4,554			(116)						4,670
Allocation of SAP shares	5,330			5,330
Allocation of stock options	189			189
Acquisition of deferred compensation plan	0										(1,336)	1,336
Balance at the end of the period 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]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Cash dividends paid (in dollars per share)	$ 0.92	$ 1.12	$ 0.82

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 96,951	$ 112,633	$ 118,387
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles	11,012	10,395	10,101
Provision for credit losses	29,719	13,100	23,700
Provision for credit loss for off-balance sheet credit exposure	1,814	0	0
Deferred tax expense (benefit)	(7,929)	1,674	(18,541)
Amortization of operating lease right-of-use assets	9,012	8,433	0
Income on Bank-owned life insurance	(6,491)	(6,297)	(5,514)
Net amortization of premiums and discounts on securities	10,058	7,789	8,540
Accretion of net deferred loan fees	(9,492)	(5,643)	(5,773)
Amortization of premiums on purchased loans, net	1,032	845	894
Net increase in loans originated for sale	(87,413)	(16,212)	(36,043)
Proceeds from sales of loans originated for sale	89,126	17,202	37,386
Proceeds from sales and paydowns of foreclosed assets	3,610	1,354	7,963
ESOP expense	2,401	4,533	4,516
Allocation of stock award shares	5,330	6,671	6,046
Allocation of stock options	189	181	190
Net gain on sale of loans	(1,713)	(990)	(1,343)
Net gain on securities transactions	(81)	(72)	(2,221)
Net gain on sale of premises and equipment	(947)	0	(25)
Net gain on sale of foreclosed assets	(821)	(190)	(798)
Decrease (increase) in accrued interest receivable	8,472	2,444	(1,829)
(Increase) decrease in other assets	(106,811)	(46,237)	5,266
Increase in other liabilities	59,883	25,312	4,817
Net cash provided by operating activities	106,911	136,925	155,719
Cash flows from investing activities:
Proceeds from maturities, calls and paydowns of held to maturity debt securities	62,051	42,696	39,534
Purchases of held to maturity debt securities	(49,228)	(20,303)	(43,887)
Proceeds from sales of available for sale debt securities	13,905	0	2,212
Proceeds from maturities, calls and paydowns of available for sale debt securities	350,335	223,806	196,690
Purchases of available for sale debt securities	(248,863)	(117,022)	(237,076)
Proceeds from redemption of Federal Home Loan Bank stock	115,630	172,293	145,191
Purchases of Federal Home Loan Bank stock	(106,605)	(160,778)	(132,820)
BOLI claim benefits received	6,527	1,891	1,954
Cash received, net of cash consideration paid for acquisition	78,089	(15,022)	0
Purchases of loans	0	0	(1,344)
Net (increase) decrease in loans	(717,947)	(79,812)	79,388
Proceeds from sales of premises and equipment	947	0	25
Purchases of premises and equipment	(12,825)	(4,882)	(3,162)
Net cash provided by (used in) investing activities	(507,984)	42,867	46,705
Cash flows from financing activities:
Net increase in deposits	977,442	272,487	115,956
Increase (decrease) in mortgage escrow deposits	7,494	1,236	(365)
Purchase of treasury stock	(21,161)	(19,867)	(13,172)
Purchase of employee restricted shares to fund statutory tax withholding	(969)	(1,985)	(1,896)
Cash dividends paid to stockholders	(65,823)	(72,809)	(53,604)
Shares issued to dividend reinvestment plan	451	2,230	1,709
Stock options exercised	0	139	1,007
Proceeds from long-term borrowings	2,429,999	1,243,000	695,000
Payments on long-term borrowings	(2,286,722)	(1,549,551)	(804,375)
Net (decrease) increase in short-term borrowings	(294,033)	(10,585)	(190,857)
Net cash (used in) provided by financing activities	746,678	(135,705)	(250,597)
Net increase (decrease) in cash and cash equivalents	345,605	44,087	(48,173)
Cash and cash equivalents at beginning of period	186,748	142,661	190,834
Cash and cash equivalents at end of period	532,353	186,748	142,661
Cash paid during the period for:
Interest on deposits and borrowings	49,419	73,664	58,959
Income taxes	36,514	34,494	15,259
Non cash investing activities:
Initial recognition of operating lease right-of-use assets	0	44,946
Initial recognition of operating lease liabilities	0	46,050
Transfer of loans receivable to foreclosed assets	2,516	2,314	1,965
Non-cash assets acquired at fair value:
Investment securities	255,242	0	0
Loans, net	1,752,529	0	0
Bank-owned life insurance	37,237	0	0
Goodwill and other intangible assets, net	32,404	21,562	0
Bank premises and equipment	16,620	0	0
Other assets	23,587	71	0
Total non-cash assets acquired at fair value	2,117,619	$ 21,633	0
Liabilities assumed:
Deposits	1,757,777
Borrowings and subordinated debt	$ 226,656
Other Liabilities			30,447
Total liabilities assumed			2,014,880
Common stock issued for acquisitions			$ 180,828

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Principles of Consolidation The consolidated financial statements include the accounts of Provident Financial Services, Inc. (the “Company”), Provident Bank (the “Bank”) and their wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Certain reclassifications have been made in the consolidated financial statements to conform with current year classifications. Business The Company, through the Bank, provides a full range of banking services to individual and business customers through branch offices in New Jersey, Queens County, New York and eastern Pennsylvania. The Bank is subject to competition from other financial institutions and to the regulations of certain federal and state agencies, and undergoes periodic examinations by those regulatory authorities. Basis of Financial Statement Presentation The consolidated financial statements of the Company have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). In preparing the consolidated financial statements, management is required to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the reported amounts of assets and liabilities and disclosures about contingent assets and liabilities as of the dates of the consolidated statements of financial condition, and revenues and expenses for the periods then ended. Such estimates are used in connection with the determination of the allowance for credit losses, evaluation of goodwill for impairment, evaluation of the need for valuation allowances on deferred tax assets, and determination of liabilities related to retirement and other post-retirement benefits, among others. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the currently forecasted economic environment, which management believes to be reasonable under the circumstances. Such estimates and assumptions are adjusted when facts and circumstances dictate. Illiquid credit markets, volatile securities markets, and declines in the housing market and the economy generally have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash and due from banks, Federal funds sold and commercial paper with original maturity dates less than 90 days. Securities Securities include held to maturity debt securities and available for sale debt securities. The available for sale debt securities portfolio is carried at estimated fair value, with any unrealized gains or losses, net of taxes, reported as accumulated other comprehensive income or loss in Stockholders’ Equity. Estimated fair values are based on market quotations or matrix pricing. Securities which the Company has the positive intent and ability to hold to maturity are classified as held to maturity debt securities and carried at amortized cost. On January 1, 2020, the Company adopted CECL which replaces the incurred loss methodology with an expected loss methodology. 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 December 31, 2020 and the Company had one security rated with a triple-B by Moody’s Investors Service. Premiums on securities are amortized to income using a method that approximates the interest method over the remaining period to the earliest call date or contractual maturity, adjusted for anticipated prepayments. Discounts on securities are accreted to income over the remaining period to the contractual maturity, adjusted for anticipated prepayments.. Dividend and interest income are recognized when earned. Realized gains and losses are recognized when securities are sold or called based on the specific identification method. Fair Value of Financial Instruments 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). 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. Federal Home Loan Bank of New York Stock The Bank, as a member of the Federal Home Loan Bank of New York (“FHLBNY”), is required to hold shares of capital stock of the FHLBNY at cost based on a specified formula. The Bank carries this investment at cost, which approximates fair value. Loans Loans receivable are carried at unpaid principal balances plus unamortized premiums, purchase accounting mark-to-market adjustments, certain deferred direct loan origination costs and deferred loan origination fees and discounts, less the allowance for credit losses. The Bank defers loan origination fees and certain direct loan origination costs and accretes or amortizes such amounts as an adjustment to the yield over the expected lives of the related loans using the interest method. Premiums and discounts on loans purchased are amortized or accreted as an adjustment of yield over the contractual lives of the related loans, adjusted for prepayments when applicable, using methodologies which approximate the interest method. Loans are generally placed on non-accrual status when they are past due 90 days or more as to contractual obligations or when other circumstances indicate that collection is questionable. When a loan is placed on non-accrual status, any interest accrued but not received is reversed against interest income. Payments received on a non-accrual loan are either applied to the outstanding principal balance or recorded as interest income, depending on an assessment of the ability to collect the loan. A non-accrual loan is restored to accrual status when principal and interest payments become less than 90 days past due and its future collectability is reasonably assured. An impaired loan is defined as a loan for which it is probable, based on current information, that the Bank will not collect all amounts due under the contractual terms of the loan agreement. Impaired loans are individually assessed to determine that each loan’s carrying value is not in excess of the fair value of the related collateral or the present value of the expected future cash flows. Residential mortgage and consumer loans are deemed smaller balance homogeneous loans which are evaluated collectively for impairment and are therefore excluded from the population of impaired loans. Purchased credit deteriorated (“PCD”) loans are loans acquired that have experienced more-than-insignificant deterioration in credit quality since origination. The Company evaluates 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. 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. Allowance for Credit Losses on Loans The allowance for credit losses is a valuation account that reflects management’s evaluation of the current expected credit losses in the loan portfolio. The Company maintains the allowance for credit losses through provisions for credit losses that are charged to income. Charge-offs against the allowance for credit losses are taken on loans where management determines that the collection of loan principal and interest is unlikely. Recoveries made on loans that have been charged-off are credited to the allowance for credit losses. On January 1, 2020, the Company adopted ASU 2016-13, "Measurement of Credit Losses on Financial Instruments,” which replaces the incurred loss methodology with an expected loss methodology that is referred to as the current expected credit loss (“CECL”) methodology. It also applies to off-balance sheet credit exposures, including loan commitments and lines of credit. The adoption of the new standard resulted in the Company recording a $7.9 million increase to the allowance for credit losses and a $3.2 million liability for off-balance sheet credit exposures. The adoption of the standard did not result in a change to the Company's results of operations upon adoption as it was recorded as an $8.3 million cumulative effect adjustment, net of income taxes, to retained earnings. The allowance for credit losses is a valuation account that reflects management’s evaluation of the current expected credit losses in the loan portfolio. The Company maintains the allowance for credit losses through provisions for credit losses that are charged to income. Charge-offs against the allowance for credit losses are taken on loans where management determines that the collection of loan principal and interest is unlikely. Recoveries made on loans that have been charged-off are credited to the allowance for credit losses. The calculation of the allowance for credit losses is a critical accounting policy of the Company. Management estimates the allowance balance using relevant available information, from internal and external sources, related to past events, current conditions, and a reasonable and supportable forecast. Historical credit loss experience for both the Company and peers provides the basis for the estimation of expected credit losses, where observed credit losses are converted to probability of default rate (“PDR”) curves through the use of segment-specific loss given default (“LGD”) risk factors that convert default rates to loss severity based on industry-level, observed relationships between the two variables for each segment, primarily due to the nature of the underlying collateral. These risk factors were assessed for reasonableness against the Company’s own loss experience and adjusted in certain cases when the relationship between the Company’s historical default and loss severity deviate from that of the wider industry. The historical PDR curves, together with corresponding economic conditions, establish a quantitative relationship between economic conditions and loan performance through an economic cycle. Using the historical relationship between economic conditions and loan performance, management’s expectation of future loan performance is incorporated using an externally developed economic forecast. This forecast is applied over a period that management has determined to be reasonable and supportable. Beyond the period over which management can develop or source a reasonable and supportable forecast, the model will revert to long-term average economic conditions using a straight-line, time-based methodology. The Company's current forecast period is six quarters, with a four quarter reversion period to historical average macroeconomic factors. The Company's economic forecast is approved by the Company's Asset-Liability Committee. The allowance for credit losses is measured on a collective (pool) basis, with both a quantitative and qualitative analysis that is applied on a quarterly basis, when similar risk characteristics exist. The respective quantitative allowance for each segment is measured using an econometric, discounted PD/LGD modeling methodology in which distinct, segment-specific multi-variate regression models are applied to an external economic forecast. Under the discounted cash flows methodology, expected credit losses are estimated over the effective life of the loans by measuring the difference between the net present value of modeled cash flows and amortized cost basis. Contractual cash flows over the contractual life of the loans are the basis for modeled cash flows, adjusted for modeled defaults and expected prepayments and discounted at the loan-level effective interest rate. The contractual term excludes expected extensions, renewals, and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a troubled debt restructuring (“TDR”) will be executed with an individual borrower or the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company. After quantitative considerations, management applies additional qualitative adjustments so that the allowance for credit loss is reflective of the estimate of lifetime losses that exist in the loan portfolio at the balance sheet date. Qualitative considerations include limitations inherent in the quantitative model; portfolio concentrations that may affect loss experience across one or more components of the portfolio; changes in industry conditions; changes in the Company’s loan review process; changes in the Company's loan policies and procedures, economic forecast uncertainty and model imprecision. Portfolio segment is defined as the level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses. Management developed segments for estimating loss based on type of borrower and collateral which is generally based upon federal call report segmentation and have been combined or sub-segmented as needed to ensure loans of similar risk profiles are appropriately pooled. As of December 31, 2020, the portfolio and class segments for the Company’s loan portfolio were: • Mortgage Loans – Residential, Commercial Real Estate, Multi-Family and Construction • Commercial Loans – Commercial Owner Occupied and Commercial Non-Owner Occupied • Consumer Loans – First Lien Home Equity and Other Consumer The allowance for credit losses on loans individually evaluated for impairment is based upon loans that have been identified through the Company’s normal loan monitoring process. This process includes the review of delinquent and problem loans at the Company’s Delinquency, Credit, Credit Risk Management and Allowance Committees; or which may be identified through the Company’s loan review process. Generally, the Company only evaluates loans individually for impairment if the loan is non-accrual, non-homogeneous and the balance is at least $1.0 million, or if the loan was modified in a Troubled Debt Restructuring (“TDR”). When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate. If the loan is not collateral dependent, the allowance for credit losses related to individually assessed loans is based on discounted expected cash flows using the loan’s initial effective interest rate. A loan for which the terms have been modified resulting in a concession by the Company, and for which the borrower is experiencing financial difficulties is considered to be a TDR. The allowance for credit losses on a TDR is measured using the same method as all other impaired loans, except that the original interest rate is used to discount the expected cash flows, not the rate specified within the restructuring. As previously noted, in accordance with the CARES Act, the Company elected to not apply troubled debt restructuring classification to any COVID-19 related loan modifications that occurred after March 1, 2020 to borrowers who were current as of December 31, 2019. Accordingly, these modifications were not classified as TDRs. In addition, for loans modified in response to the COVID-19 pandemic that did not meet the above criteria (e.g., current payment status at December 31, 2019), the Company applied the guidance included in an interagency statement issued by the bank regulatory agencies. This guidance states that loan modifications performed in light of the COVID-19 pandemic, including loan payment deferrals that are up to six months in duration, that were granted to borrowers who were current as of the implementation date of a loan modification program or modifications granted under government mandated modification programs, are not TDRs. For loans acquired that have experienced more-than-insignificant deterioration in credit quality since origination are considered PCD loans. The Company evaluates 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. 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. Management believes the primary risks inherent in the portfolio are a general decline in the economy, a decline in real estate market values, rising unemployment or a protracted period of elevated unemployment, increasing vacancy rates in commercial investment properties and possible increases in interest rates in the absence of economic improvement. As the impact of the COVID-19 pandemic continues to unfold, the effectiveness of medical advances, government programs, and the resulting impact on consumer behavior and employment conditions will have a material bearing on future credit conditions. Any one or a combination of these events may adversely affect borrowers’ ability to repay the loans, resulting in increased delinquencies, credit losses and higher levels of provisions. Management considers it important to maintain the ratio of the allowance for credit losses to total loans at an acceptable level given current and forecasted economic conditions, interest rates and the composition of the portfolio. Although management believes that the Company has established and maintained the allowance for credit losses at appropriate levels, additions may be necessary if future economic and other conditions differ substantially from the current operating environment and economic forecast. Management evaluates its estimates and assumptions on an ongoing basis giving consideration to forecasted economic factors, historical loss experience and other factors. Such estimates and assumptions are adjusted when facts and circumstances dictate. In addition to the ongoing impact of the COVID-19 pandemic, illiquid credit markets, volatile securities markets, and declines in the housing and commercial real estate markets and the economy in general may increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. In addition, various regulatory agencies periodically review the adequacy of the Company’s allowance for credit losses as an integral part of their examination process. Such agencies may require the Company to recognize additions to the allowance or additional write-downs based on their judgments about information available to them at the time of their examination. Although management uses the best information available, the level of the allowance for credit losses remains an estimate that is subject to significant judgment and short-term change. 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 year ended, December 31, 2020, changing economic forecasts attributable to the COVID-19 pandemic and projected economic recovery led to provisions for credit losses and off-balance sheet credit exposures. See Note 7 to the Consolidated Financial Statements for more information on the allowance for credit losses on loans Allowance for Loan Losses - Incurred Loss Method Prior to the adoption of CECL on January 1, 2020, the Company calculated the allowance for loan losses using the incurred loss method. Using this method, the allowance represented management's best estimate of probably incurred losses inherent in the current loan portfolio. While management used information to recognize losses on loans, additions and reductions of the allowance for loan losses may fluctuate from one reporting period to another based on changes in economic conditions or changes in the values of properties securing loans in the process of foreclosure. The evaluation of the various components of the allowance for loan losses required considerable judgement in order to estimate inherent loss exposures. Each quarter, the lending group prepared individual Credit Risk Management Reports for the Credit Administration Department. These reports review all commercial loans and commercial mortgage loans that have been determined to involve above-average risk (risk rating of 5 or worse). The Credit Risk Management Reports contain the reason for the risk rating assigned to each loan, status of the loan and any current developments. These reports are submitted to a committee chaired by the Chief Credit Officer. Each loan officer reviews the loan and the corresponding Credit Risk Management Report with the committee and the risk rating is evaluated for appropriateness. Management estimated the amount of loan losses for groups of loans by applying quantitative loss factors to loan segments at the risk rating level, and applying qualitative adjustments to each loan segment at the portfolio level. Quantitative loss factors give consideration to historical loss experience by loan type based upon an appropriate look-back period and adjusted for a loss emergence period; these factors are evaluated at least annually. Qualitative adjustments give consideration to other qualitative or environmental factors such as: a. levels of and trends in delinquencies and impaired loans; b. levels of and trends in charge-offs and recoveries; c. trends in volume and terms of loans; d. effects of any changes in lending policies, procedures and practices; e. changes in the quality or results of the Bank’s loan review system; f. experience, ability, and depth of lending management and other relevant staff; g. national and local economic trends and conditions; h. industry conditions; i. effects of changes in credit concentration; and j. changes in collateral values. Qualitative adjustments reflect risks in the loan portfolio not captured by the quantitative loss factors and, as such, are evaluated from a risk level perspective relative to the risk levels present over the look-back period. Qualitative adjustments are recalibrated at least annually and evaluated at least quarterly. The reserves resulting from the application of both of these sets of loss factors are combined to arrive at the general allowance for loan losses. The reserve factors applied to each loan risk rating are inherently subjective in nature. Reserve factors are assigned to each of the risk rating categories. This methodology permits adjustments to the allowance for loan losses in the event that, in management’s judgment, significant conditions impacting the credit quality and collectability of the loan portfolio as of the evaluation date are not otherwise adequately reflected in the analysis. The provision for loan losses is established after considering the allowance for loan loss analysis, the amount of the allowance for loan losses in relation to the total loan balance, loan portfolio growth, loan portfolio composition, loan delinquency and non-performing loan trends and peer group analysis. Foreclosed Assets Assets acquired through foreclosure or deed in lieu of foreclosure are carried at the lower of the outstanding loan balance at the time of foreclosure or fair value, less estimated costs to sell. Fair value is generally based on recent appraisals. When an asset is acquired, the excess of the loan balance over fair value, less estimated costs to sell, 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. Banking Premises and Equipment Land is carried at cost. Banking premises, furniture, fixtures and equipment are carried at cost, less accumulated depreciation, computed using the straight-line method based on their estimated useful lives. Leasehold improvements, carried at cost, net of accumulated depreciation, are amortized over the terms of the leases or the estimated useful lives of the assets, whichever are shorter, using the straight-line method. Maintenance and repairs are charged to expense as incurred. Income Taxes The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in tax expense in the period that includes the enactment date. Deferred tax assets and liabilities are reported as a component of other assets on the Consolidated Statements of Financial Condition. The determination of whether deferred tax assets will be realizable is predicated on estimates of future taxable income. Such estimates are subject to management’s judgment. A valuation reserve is established when management is unable to conclude that it is more likely than not that it will realize deferred tax assets based on the nature and timing of these items. The Company recognizes, when applicable, interest and penalties related to unrecognized tax benefits in the provision for income taxes. Trust Assets Trust assets consisting of securities and other property (other than cash on deposit held by the Bank in fiduciary or agency capacities for customers of the Bank’s wholly owned subsidiary, Beacon) are not included in the accompanying consolidated statements of financial condition because such properties are not assets of the Bank. Intangible Assets Intangible assets of the Bank consist of goodwill, core deposit premiums, customer relationship premium and mortgage servicing rights. Goodwill represents the excess of the purchase price over the estimated fair value of identifiable net assets acquired through purchase acquisitions. Goodwill is an intangible asset with an indefinite useful life and, in accordance with GAAP, is not amortized, but is evaluated for impairment on an annual basis, or more frequently if events or changes in circumstances indicate potential impairment between annual measurement dates. Goodwill is analyzed for impairment each year at September 30. As permitted by GAAP, the Company prepares a qualitative assessment in determining whether goodwill may be impaired. The factors considered in the assessment include macroeconomic conditions, industry and market conditions and overall financial performance of the Company, among others. The Company completed its annual goodwill impairment test as of September 30, 2020. Based upon its qualitative assessment of goodwill, the Company concluded that goodwill was not impaired and no further quantitative analysis was warranted. Core deposit premiums represent the intangible value of depositor relationships assumed in previous purchase acquisitions and are amortized on an accelerated basis over 8.8 years, while the core deposit premium related to SB One is amortized over its estimated useful life of 10.0 years. Customer relationship premiums represent the intangible value of customer relationships assumed in the purchase acquisitions of Beacon Trust Company ("Beacon"), The MDE Group, Inc. ("MDE"), Tirschwell & Loewy, Inc. ("T&L"), and SB One Bank and are amortized on an accelerated basis over 12.0 years, 10.4 years, 10.0 years, and 13.0 years respectively. Mortgage servicing rights are recorded when purchased or when originated mortgage loans are sold, with servicing rights retained. Mortgage servicing rights are amortized on an accelerated method based upon the estimated lives of the related loans, adjusted for prepayments. Mortgage servicing rights are carried at the lower of amortized cost or fair value. Bank-owned Life Insurance Bank-owned life insurance is accounted for using the cash surrender value method and is recorded at its realizable value. Employee Benefit Plans The Bank maintains a pension plan which covers full-time employees hired prior to April 1, 2003, the date on which the pension plan was frozen. The Bank’s policy is to fund at least the minimum contribution required by the Employee Retirement Income Security Act of 1974. GAAP requires an employer to: (a) recognize in its statement of financial position the over-funded or under-funded status of a defined benefit postretirement plan measured as the difference between the fair value of plan assets and the benefit obligation; (b) measure a plan’s assets and its obligations that determine its funded status at the end of the employer’s fiscal year (with limited exceptions); and (c) recognize as a component of other comprehensive income, net of tax, the actuarial gains and losses and the prior service costs and credits that arise during the period. The Bank has a 401(k) plan covering substantially all employees of the Bank. The Bank may match a percentage of the first 6% contributed by participants. The Bank’s matching contribution, if any, is determined by the Board of Directors in its sole discretion. The Bank has an Employee Stock Ownership Plan (“ESOP”). The funds borrowed by the ESOP from the Company to purchase the Company’s common stock are being repaid from the Bank’s contributions and dividends paid on unallocated ESOP shares over a period of up to 30 years. The Company’s common stock not allocated to participants is recorded as a reduction of stockholders’ equity at cost. Compensation expense for the ESOP is based on the average price of the Company’s stock during each quarter and

Stockholders_ Equity

Stockholders’ Equity	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Stockholders’ Equity	Stockholders’ Equity On January 15, 2003, the Bank completed its plan of conversion, and the Bank became a wholly owned subsidiary of the Company. The Company sold 59.6 million shares of common stock (par value $0.01 per share) at $10.00 per share. The Company received net proceeds in the amount of $567.2 million. In connection with the Bank’s commitment to its community, the plan of conversion provided for the establishment of a charitable foundation. Provident donated $4.8 million in cash and 1.92 million of authorized but unissued shares of common stock to the foundation, which amounted to $24.0 million in aggregate. The Company recognized an expense, net of income tax benefit, equal to the cash and fair value of the stock during 2003. Conversion costs were deferred and deducted from the proceeds of the shares sold in the offering. Upon completion of the plan of conversion, a “liquidation account” was established in an amount equal to the total equity of the Bank as of the latest practicable date prior to the conversion. The liquidation account was established to provide a limited priority claim to the assets of the Bank to “eligible account holders” and “supplemental eligible account holders” as defined in

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2020
Business Combinations [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, which included PCD loans totaling $294.2 million, and $1.76 billion to total deposits, and added 18 full-service banking offices in New Jersey and New York. As part of the acquisition, the addition of SB One Insurance Agency allows the Company to expand its products offerings to its customers to include an array of commercial and personal insurance products. Under the merger agreement, each share of 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 in 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 respective assets acquired and liabilities assumed were recorded at their estimated fair value. 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. As the Company finalizes its analysis of these assets and liabilities, there may be adjustments to the recorded carrying values. The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition from SB One (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 Mortgage escrow deposits — 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 credit 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 was $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 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 were 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 forecast 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, net 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. Leases As part of the SB One acquisition the Company added ten lease obligations. The Company recorded a $3.8 million right-of-use asset and lease liability for these lease obligations. 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 the 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. As the Company finalizes its review of the acquired assets and liabilities, certain adjustments to the recorded carrying values may be required. The goodwill will be evaluated annually for impairment. The goodwill is not deductible for tax purposes. 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. Merger-Related Expenses Merger-related expenses, which are recorded in other operating expenses on the Consolidated Statements of Income, totaled $6.3 million for the year ended December 31, 2020, respectively, and primarily consisted of consulting and legal expenses. Acquisition of Tirschwell & Loewy, Inc. On April 1, 2019, Beacon Trust Company ("Beacon") completed its acquisition of certain assets of Tirschwell & Loewy, Inc. ("T&L"), a New York City-based independent registered investment adviser. Beacon is a wholly owned subsidiary of Provident Bank. This acquisition expanded the Company’s wealth management business by $822.4 million of assets under management at the time of acquisition. The acquisition was accounted for under the acquisition method of accounting. The Company recorded goodwill of $8.2 million, a customer relationship intangible of $12.6 million and $800,000 of other identifiable intangibles related to the acquisition. In addition, the Company recorded a contingent consideration liability at its fair value of $6.6 million. The contingent consideration arrangement requires the Company to pay additional cash consideration to T&L's former stakeholders over a three

Restrictions on Cash and Due fr

Restrictions on Cash and Due from Banks	12 Months Ended
	Dec. 31, 2020
Cash and Cash Equivalents [Abstract]
Restrictions on Cash and Due from Banks	Restrictions on Cash and Due from BanksIncluded in cash on hand and due from banks at December 31, 2020 and 2019 was $114.3 million and $77.0 million, respectively, representing cash collateral pledged to secure loan level swaps and reserves required by banking regulations.

Held to Maturity Debt Securitie

Held to Maturity Debt Securities	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Held to Maturity Debt Securities	Held to Maturity Debt Securities On January 1, 2020, the Company adopted CECL which replaces the incurred loss methodology with an expected loss methodology. 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 December 31, 2020 and the Company had one security 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. Held to maturity debt securities at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 Amortized cost Gross unrealized gains Gross unrealized losses Allowance for credit losses Fair value Agency obligations $ 7,600 6 (5) — 7,601 Mortgage-backed securities 62 2 — — 64 State and municipal obligations 433,655 21,442 (58) (66) 454,973 Corporate obligations 9,726 101 (2) (12) 9,813 $ 451,043 21,551 (65) (78) 472,451 At December 31, 2020, total amortized cost, net of allowance for credit losses totaled $451.0 million. 2019 Amortized cost Gross unrealized gains Gross unrealized losses Allowance for credit losses Fair value Agency obligations $ 6,599 11 (9) — 6,601 Mortgage-backed securities 118 4 — — 122 State and municipal obligations 437,074 14,394 (115) — 451,353 Corporate obligations 9,838 58 (6) — 9,890 $ 453,629 14,467 (130) — 467,966 The Company generally purchases securities for long-term investment purposes, and differences between carrying and fair values may fluctuate during the investment period. Held to maturity debt securities having a carrying value of $416.1 million and $428.0 million at December 31, 2020 and 2019, respectively, were pledged to secure municipal deposits. The amortized cost and fair value of held to maturity debt securities at December 31, 2020 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. 2020 Amortized cost Fair value Due in one year or less $ 21,623 21,736 Due after one year through five years 133,869 137,978 Due after five years through ten years 216,671 229,902 Due after ten years 78,818 82,849 $ 450,981 472,465 Mortgage-backed securities totaling $62,000 at amortized cost and $64,000 at fair value are excluded from the table above as their expected lives are anticipated to be shorter than the contractual maturity date due to principal prepayments. Additionally, the allowance for credit losses totaling $78,000 is excluded from the table above. During 2020, the Company recognized gains of $81,000 and no losses related to calls on securities in the held to maturity debt securities portfolio, with total proceeds from the calls totaling $49.3 million. There were no sales of securities from the held to maturity debt securities portfolio for the year ended December 31, 2020. For 2019, the Company recognized gains of $72,000 and no losses related to calls on securities in the held to maturity debt securities portfolio, with total proceeds from the calls totaling $33.9 million. There were no sales of securities from the held to maturity debt securities portfolio for the year ended December 31, 2019. For the 2018 period, the Company recognized gains of $10,000 and losses of $1,000 related to calls on certain securities in the held to maturity debt securities portfolio, with total proceeds from the calls totaling $32.0 million. There were no sales of securities from the held to maturity debt securities portfolio for the year ended December 31, 2018. 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 represent the Company's disclosure on held to maturity debt securities in an unrealized loss position (in thousands): December 31, 2020 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses 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) December 31, 2019 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Agency obligations $ 3,601 (9) — — 3,601 (9) State and municipal obligations 7,675 (42) 2,093 (73) 9,768 (115) Corporate obligations 3,254 (6) — — 3,254 (6) $ 14,530 (57) 2,093 (73) 16,623 (130) The number of securities in an unrealized loss position as of December 31, 2020 totaled 7, compared with 35 at December 31, 2019. The decrease in the number of securities in an unrealized loss position at December 31, 2020 was due to lower current market interest rates compared to rates at December 31, 2019. Credit Quality Indicators. The following table provides the amortized cost of held to maturity debt securities by credit rating as of December 31, 2020 (in thousands): 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 December 31, 2019 Total Portfolio AAA AA A BBB Not Rated Total Agency obligations $ 6,599 — — — — 6,599 Mortgage-backed securities 118 — — — — 118 State and municipal obligations 49,316 330,322 56,317 1,119 — 437,074 Corporate obligations — 3,128 6,335 350 25 9,838 $ 56,033 333,450 62,652 1,469 25 453,629 Credit quality indicators are metrics that provide information regarding the relative credit risk of debt securities. At December 31, 2020, the held to maturity debt securities portfolio was comprised of 15% rated AAA, 70% rated AA, 13% rated A, and less than 2% 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 December 31, 2020, the allowance for credit losses on held to maturity debt securities was $78,000, an increase from $70,000 at January 1, 2020, when the Company adopted CECL.

Available for Sale Debt Securit

Available for Sale Debt Securities	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Available for Sale Debt Securities	Available for Sale Debt Securities 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 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 at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 Amortized cost Gross unrealized gains Gross unrealized losses Fair value 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 2019 Amortized cost Gross unrealized gains Gross unrealized losses Fair value Mortgage-backed securities $ 936,196 12,367 (1,133) 947,430 State and municipal obligations 3,907 172 — 4,079 Corporate obligations 25,032 393 (15) 25,410 $ 965,135 12,932 (1,148) 976,919 Available for sale debt securities having a carrying value of $618.0 million and $536.4 million at December 31, 2020 and 2019, respectively, are pledged to secure securities sold under repurchase agreements and municipal deposits. The amortized cost and fair value of available for sale debt securities at December 31, 2020, 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. 2020 Amortized cost Fair value Due after one year through five years $ 5,676 5,791 Due after five years through ten years 38,046 38,780 Due after ten years 66,159 67,666 $ 109,881 112,237 Investments which pay principal on a periodic basis totaling $963.7 million at amortized cost and $993.3 million 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. During 2020, proceeds from calls on securities in the available for sale debt securities portfolio totaled $13.9 million, with no gain or loss recognized. For 2019, there were no sales or calls of securities from the available for sale debt securities. The following tables represent the Company's disclosure on available for sale debt securities in an unrealized loss position (in thousands): December 31, 2020 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses 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) December 31, 2019 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Mortgage-backed securities $ 136,270 (629) 46,819 (504) 183,089 (1,133) Corporate obligations 2,013 (15) — — 2,013 (15) $ 138,283 (644) 46,819 (504) 185,102 (1,148)

Loans Receivable and Allowance

Loans Receivable and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Loans Receivable and Allowance for Loan 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 December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 2019 Mortgage loans: Residential $ 1,294,702 1,077,689 Commercial 3,458,666 2,578,393 Multi-family 1,484,515 1,225,551 Construction 541,939 429,812 Total mortgage loans 6,779,822 5,311,445 Commercial loans 2,567,470 1,634,759 Consumer loans 492,566 391,360 Total gross loans 9,839,858 7,337,564 PCI loans prior to CECL — 746 Premiums on purchased loans 1,566 2,474 Unearned discounts (12) (26) Net deferred fees (18,522) (7,873) Total loans $ 9,822,890 7,332,885 Premiums and discounts on purchased loans are amortized over the lives of the loans as an adjustment to yield. Required reductions due to loan prepayments are charged against interest income. For the years ended December 31, 2020, 2019 and 2018, $1.0 million, $845,000 and $894,000 decreased interest income, respectively, as a result of prepayments and normal amortization. The following tables summarize the aging of loans receivable by portfolio segment and class of loans (in thousands). The December 31, 2020 balances include PCD loans, while the December 31, 2019 balances exclude PCI loans (in accordance with ASC 310, prior to the adoption of ASU 2016-13 on January 1, 2020): At December 31, 2020 30-59 Days 60-89 Days Non-accrual 90 days or more past due and accruing Total Past Due 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 At December 31, 2019 30-59 Days 60-89 Days Non-accrual 90 days or more past due and Total Past Due Current Total Loans Receivable Non-accrual loans with no related allowance Mortgage loans: Residential $ 5,905 2,579 8,543 — 17,027 1,060,662 1,077,689 2,989 Commercial — — 5,270 — 5,270 2,573,123 2,578,393 — Multi-family — — — — — 1,225,551 1,225,551 — Construction — — — — — 429,812 429,812 — Total mortgage loans 5,905 2,579 13,813 — 22,297 5,289,148 5,311,445 2,989 Commercial loans 2,383 95 25,160 — 27,638 1,607,121 1,634,759 3,238 Consumer loans 1,276 337 1,221 — 2,834 388,526 391,360 569 Total gross loans $ 9,564 3,011 40,194 — 52,769 7,284,795 7,337,564 6,796 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 amount of these nonaccrual loans was $87.1 million and $40.2 million at December 31, 2020 and 2019, respectively. There were no loans 90-days or greater past due and still accruing interest at December 31, 2020 and 2019. The increase in non-performing loans in 2020 reflects the effects of the protracted duration of the pandemic and related government response, and the attendant increased uncertainty of affected borrowers’ ability to repay all contractually due principal and interest. 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. If the non-accrual loans had performed in accordance with their original terms, interest income would have increased by $3.2 million, $1.7 million and $1.4 million, for the years ended December 31, 2020, 2019 and 2018, respectively. The amount of cash basis interest income that was recognized on impaired loans during the years ended December 31, 2020, 2019 and 2018 was $1.9 million, $2.1 million and $2.0 million respectively. 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 collateral’s fair value 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 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 related 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 December 31, 2019, there were 158 impaired loans totaling $70.6 million, of which 147 loans totaling $48.3 million were TDRs. Included in this total were 133 TDRs related to 128 borrowers totaling $42.7 million that were performing in accordance with their restructured terms and which continued to accrue interest at December 31, 2019. At December 31, 2020 and December 31, 2019, the Company had $26.3 million and $20.4 million of collateral-dependent impaired loans, respectively. The collateral-dependent impaired loans at December 31, 2020 consisted of $13.4 million in residential real estate loans, $12.8 million in commercial loans and $9,000 in consumer loans. The collateral for these impaired loans was primarily real estate. The activity in the allowance for credit losses for the years ended December 31, 2020, 2019 and 2018 is as follows (in thousands): Years Ended December 31, 2020 2019 2018 Balance at beginning of period $ 55,525 55,562 60,195 Provision charged to operations 29,712 13,100 23,700 Increase due to the initial adoption of CECL 7,920 — — Initial allowance related to PCD loans 13,586 — — Recoveries of loans previously charged off 2,636 1,895 1,685 Loans charged off (7,913) (15,032) (30,018) Balance at end of period $ 101,466 55,525 55,562 The activity in the allowance for credit losses by portfolio segment for the years ended December 31, 2020 and 2019 are as follows (in thousands): For the Year Ended December 31, 2020 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Balance at beginning of period $ 25,511 28,263 1,751 55,525 Provision charged to operations 18,945 10,199 568 29,712 Increase (decrease) due to the initial adoption of CECL 14,188 (9,974) 3,706 7,920 Initial allowance related to PCD loans 11,984 1,582 20 13,586 Recoveries of loans previously charged off 396 1,776 464 2,636 Loans charged off (2,717) (4,762) (434) (7,913) Balance at end of period $ 68,307 27,084 6,075 101,466 For the Year Ended December 31, 2019 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Balance at beginning of period $ 27,678 25,693 2,191 55,562 Provision charged to operations (2,323) 15,928 (505) 13,100 Recoveries of loans previously charged off 422 665 808 1,895 Loans charged off (266) (14,023) (743) (15,032) Balance at end of period $ 25,511 28,263 1,751 55,525 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 year ended December 31, 2020, the Company recorded a $29.7 million provision for credit losses on loans. The increase in the provision for credit losses for the year ended December 31, 2020 reflects management’s best estimate of projected losses over the life of loans in the portfolio in accordance with the CECL approach, given the economic outlook and forecast related to the COVID-19 pandemic, as well as the impact of unprecedented fiscal, monetary and regulatory interventions. The largest increase in the provision for credit losses on loans for the year ended December 31, 2020 was in the commercial real estate portfolio. The following table illustrates the impact of the January 1, 2020 adoption of CECL on the allowance for credit losses related to 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): At December 31, 2020 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments 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 At December 31, 2019 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 39,910 28,357 2,374 70,641 Collectively evaluated for impairment 5,271,535 1,606,402 388,986 7,266,923 Total gross loans $ 5,311,445 1,634,759 391,360 7,337,564 The allowance for credit losses is summarized by portfolio segment and impairment classification as follows (in thousands): At December 31, 2020 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 4,220 4,715 39 8,974 Collectively evaluated for impairment 64,087 22,369 6,036 92,492 Total allowance for credit losses $ 68,307 27,084 6,075 101,466 At December 31, 2019 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 1,580 3,462 25 5,067 Collectively evaluated for impairment 23,931 24,801 1,726 50,458 Total allowance for credit losses $ 25,511 28,263 1,751 55,525 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 years ended December 31, 2020 and 2019 and their balances immediately prior to the modification date and post-modification as of December 31, 2020 and 2019. Year Ended December 31, 2020 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment ($ in thousands) Mortgage loans: Residential 2 $ 434 360 Total mortgage loans 2 434 360 Commercial loans 4 2,715 2,646 Total restructured loans 6 $ 3,149 3,006 Year Ended December 31, 2019 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment ($ in thousands) Mortgage loans: Residential 3 $ 1,617 1,584 Commercial 1 $ 14,010 14,010 Total mortgage loans 4 15,627 15,594 Commercial loans 6 1,996 1,888 Consumer loans 4 421 402 Total restructured loans 14 $ 18,044 17,884 All TDRs are impaired loans, which are individually evaluated for impairment, as previously discussed. Estimated collateral values of collateral dependent impaired loans modified during the years ended December 31, 2020 and 2019 exceeded the carrying amounts of such loans. During the year ended December 31, 2020, there were $7.3 million of charge-offs recorded on collateral dependent impaired loans. There were $11.6 million of charge-offs recorded on collateral dependent impaired loans for the year ended December 31, 2019. The allowance for credit losses associated with the TDRs presented in the preceding tables totaled $362,000 and $177,130 at December 31, 2020 and 2019, respectively, and were included in the allowance for credit losses for loans individually evaluated for impairment. (See page 109 for further discussion related to COVID-19 loan modifications) The TDRs presented in the preceding tables had a weighted average modified interest rate of approximately 5.43% and 3.83%, compared to a yield of 5.44% and 3.82% prior to modification for the years ended December 31, 2020 and 2019, respectively. The following table presents loans modified as TDRs within the previous 12 months from December 31, 2020 and 2019, and for which there was a payment default (90 days or more past due) at the quarter ended December 31, 2020 and 2019. December 31, 2020 December 31, 2019 Troubled Debt Restructurings Subsequently Defaulted Number of Loans Outstanding Number of Loans Outstanding Recorded Investment ($ in thousands) ($ in thousands) Mortgage loans: Residential — $ — 1 $ 578 Total mortgage loans — — 1 578 Total restructured loans — $ — 1 $ 578 No loans which were modified as TDRs within the 12 month period ending December 31, 2020 had a payment default (90 days or more past due). There was one payment default (90 days or more past due) for loans modified as TDRs within the 12 month period ending December 31, 2019. As allowed by CECL, the Company elected to maintain pools of loans accounted for under ASC 310-30. At December 31, 2019, 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. Loans acquired by the Company after January 1, 2020, that experience more-than-insignificant deterioration in credit quality after origination are 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 at 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 The following table presents loans individually evaluated for impairment by class and loan category (in thousands): At December 31, 2020 At December 31, 2019 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 $ 13,981 11,380 — 11,587 511 $ 13,478 10,739 — 10,910 533 Commercial 17,414 17,414 — 16,026 60 — — — — — Multi-family — — — — — — — — — — Construction — — — — — — — — — — Total 31,395 28,794 — 27,613 571 13,478 10,739 — 10,910 533 Commercial loans 15,895 14,009 — 12,791 46 3,927 3,696 — 4,015 17 Consumer loans 1,382 880 — 7 50 2,086 1,517 — 1,491 86 Total loans $ 48,672 43,683 — 40,411 667 $ 19,491 15,952 — 16,416 636 Loans with an allowance recorded Mortgage loans: Residential $ 7,950 7,506 806 7,604 307 $ 10,860 10,326 829 10,454 428 Commercial 14,993 12,483 3414 123 570 18,845 18,845 751 18,862 569 Multi-family — — — — — — — — — — Construction — — — — — — — — — — Total 22,943 19,989 4,220 7,727 877 29,705 29,171 1,580 29,316 997 Commercial loans 24,947 21,823 4,715 18,620 311 27,762 24,661 3462 27,527 444 Consumer loans 565 551 39 5 20 868 857 25 878 46 Total loans $ 48,455 42,363 8,974 26,352 1,208 $ 58,335 54,689 5,067 57,721 1,487 Total Mortgage loans: Residential $ 21,931 18,886 806 19,191 818 $ 24,338 21,065 829 21,364 961 Commercial 32,407 29,897 3,414 16,149 630 18,845 18,845 751 18,862 569 Multi-family — — — — — — — — — — Construction — — — — — — — — — — Total 54,338 48,783 4,220 35,340 1,448 43,183 39,910 1,580 40,226 1,530 Commercial loans 40,842 35,832 4,715 31,411 357 31,689 28,357 3462 31,542 461 Consumer loans 1,947 1,431 39 12 70 2,954 2,374 25 2,369 132 Total loans $ 97,127 86,046 8,974 66,763 1,875 $ 77,826 70,641 5,067 74,137 2,123 At December 31, 2020, impaired loans consisted of 169 residential, commercial and commercial mortgage loans totaling $86.0 million, of which 55 loans totaling $61.4 million were included in nonaccrual loans. At December 31, 2019, impaired loans consisted of 158 residential, commercial and commercial mortgage loans totaling $70.6 million, of which 25 loans totaling $27.9 million were included in nonaccrual loans. Specific allocations of the allowance for credit losses attributable to impaired loans totaled $9.0 million and $5.1 million at December 31, 2020 and 2019, respectively. At December 31, 2020 and 2019, impaired loans for which there was no related allowance for credit losses totaled $43.7 million and $16.0 million, respectively. The average balances of impaired loans during the years ended December 31, 2020 and 2019 were $66.8 million and $74.1 million, respectively. In the normal course of conducting its business, the Bank extends credit to meet the financing needs of its customers through commitments. Commitments and contingent liabilities, such as commitments to extend credit (including loan commitments of $1.99 billion and $1.26 billion at December 31, 2020 and 2019, respectively, and undisbursed home equity and personal credit lines of $241.2 million and $212.4 million, at December 31, 2020 and 2019, respectively, are not reflected in the accompanying consolidated financial statements. These instruments involve elements of credit and interest rate risk in excess of the amount recognized in the consolidated financial statements. The Bank uses the same credit policies and collateral requirements in making commitments and conditional obligations as it does for on-balance sheet loans. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Bank evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Bank upon extension of credit, is based on management’s credit evaluation of the borrower. The Bank grants residential real estate loans on single- and multi-family dwellings to borrowers primarily in New Jersey. Its borrowers’ abilities to repay their obligations are dependent upon various factors, including the borrowers’ income and net worth, cash flows generated by the underlying collateral, value of the underlying collateral, and priority of the Bank’s lien on the property. Such factors are dependent upon various economic conditions and individual circumstances beyond the Bank’s control; the Bank is therefore subject to risk of loss. The Bank believes that its lending policies and procedures adequately minimize the potential exposure to such risks and that adequate provisions for loan losses are provided for all known and inherent risks. Collateral and/or guarantees are required for virtually all loans. 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 the COVID-19 pandemic 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. 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 December 31, 2020, the Company secured 1,287 PPP loans for its customers totaling $473.2 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 December 31, 2020 Total portfolio Residential Commercial mortgage Multi-family Construction Total Commercial Consumer Total Loans (1) 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 2020 Special mention $ — — — 1,991 1,991 1,474 — 3,465 Substandard 164 — — — 164 726 25 915 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 164 — — 1,991 2,155 2,200 25 4,380 Pass/Watch 271,858 653,276 293,188 93,124 1,311,446 785,665 62,716 2,159,827 Total gross loans $ 272,022 653,276 293,188 95,115 1,313,601 787,865 62,741 2,164,207 2019 Special mention $ — 30,313 682 14,508 45,503 7,080 3 52,586 Substandard 3,375 1,905 — — 5,280 9,320 365 14,965 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 3,375 32,218 682 14,508 50,783 16,400 368 67,551 Pass/Watch 152,117 612,694 180,316 236,021 1,181,148 275,410 69,703 1,526,261 Total gross loans $ 155,492 644,912 180,998 250,529 1,231,931 291,810 70,071 1,593,812 2018 Special mention $ — 33,446 20,125 7,877 61,448 6,544 276 68,268 Substandard 1,669 3,687 — 4,309 9,665 6,066 110 15,841 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 1,669 37,133 20,125 12,186 71,113 12,610 386 84,109 Pass/Watch 93,588 396,487 188,892 138,190 817,157 233,246 64,151 1,114,554 Total gross loans $ 95,257 433,620 209,017 150,376 888,270 245,856 64,537 1,198,663 2017 Special mention $ — 22,838 3,117 — 25,955 27,251 70 53,276 Substandard 2,221 21,095 — 615 23,931 16,159 — 40,090 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 2,221 43,933 3,117 615 49,886 43,410 70 93,366 Pass/Watch 101,943 436,963 170,268 43,224 752,398 200,484 55,768 1,008,650 Total gross loans $ 104,164 480,896 173,385 43,839 802,284 243,894 55,838 1,102,016 2016 and prior Special mention $ 2,882 38,034 5,857 — 46,773 114,731 1,518 163,022 Substandard 19,222 71,626 1,568 — 92,416 94,821 6,246 193,483 Doubtful — — — — — 52 — 52 Loss — — — — — — — — Total criticized and classified 22,104 109,660 7,425 — 139,189 209,604 7,764 356,557 Pass/Watch 667,767 1,245,962 627,927 2,080 2,543,736 998,045 239,379 3,781,160 Total gross loans $ 689,871 1,355,622 635,352 2,080 2,682,925 1,207,649 247,143 4,137,717 At December 31, 2019 Residential Commercial mortgage Multi-family Construction Total Commercial Consumer Total loans Special mention $ 2,402 46,758 — — 49,160 79,248 286 128,694 Substandard 10,204 13,458 — 6,181 29,843 57,015 1,668 88,526 Doubtful — — — — — 836 — 836 Loss — — — — — — — — Total criticized and classified 12,606 60,216 — 6,181 79,003 137,099 1,954 218,056 Pass/Watch 1,065,083 2,518,177 1,225,551 423,631 5,232,442 1,497,660 389,406 7,119,508 Total $ 1,077,689 2,578,393 1,225,551 429,812 5,311,445 1,634,759 391,360 7,337,564 (1) Contained within criticized and classified loans at December 31, 2020 are loans that were granted payment deferrals related to COVID-19 totaling $207.4 million.

Banking Premises and Equipment

Banking Premises and Equipment	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Banking Premises and Equipment	Banking Premises and Equipment A summary of banking premises and equipment at December 31, 2020 and 2019 is as follows (in thousands): 2020 2019 Land $ 13,631 12,440 Banking premises 72,362 59,708 Furniture, fixtures and equipment 52,128 45,660 Leasehold improvements 37,756 35,749 Construction in progress 9,669 3,270 185,546 156,827 Less accumulated depreciation and amortization 109,600 101,617 Total banking premises and equipment $ 75,946 55,210 Depreciation expense for the years ended December 31, 2020, 2019 and 2018 amounted to $7.6 million, $7.7 million and $8.0 million, respectively.

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets Intangible assets at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 2019 Goodwill $ 443,001 420,562 Core deposit premiums 1,112 1,753 Customer relationship and other intangibles 21,466 14,142 Mortgage servicing rights 633 562 Total intangible assets $ 466,212 437,019 Amortization expense of intangible assets for the years ended December 31, 2020, 2019 and 2018 is as follows (in thousands): 2020 2019 2018 Core deposit premiums $ 824 786 931 Customer relationship and other intangibles 2,457 1,869 1,073 Mortgage servicing rights 144 85 123 Total amortization expense of intangible assets $ 3,425 2,740 2,127 Scheduled amortization of core deposit premiums and customer relationship and other intangibles for each of the next five years is as follows (in thousands): Year ended December 31, Scheduled Amortization 2021 $ 3,513 2022 3,143 2023 2,771 2024 2,432 2025 2,206

Deposits

Deposits	12 Months Ended
	Dec. 31, 2020
Other Liabilities [Abstract]
Deposits	Deposits Deposits at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 Weighted average interest rate 2019 Weighted average interest rate Savings deposits $ 1,348,147 0.11 % $ 983,714 0.14 % Money market accounts 2,245,412 0.45 1,738,202 0.79 NOW accounts 2,808,637 0.42 2,092,413 0.79 Non-interest bearing deposits 2,341,459 — 1,554,253 — Certificates of deposit 1,094,174 0.89 734,027 1.72 Total deposits $ 9,837,829 $ 7,102,609 Scheduled maturities of certificates of deposit accounts at December 31, 2020 and 2019 are as follows (in thousands): 2020 2019 Within one year $ 886,018 606,870 One to three years 153,114 81,987 Three to five years 54,544 44,243 Five years and thereafter 498 927 $ 1,094,174 734,027 Interest expense on deposits for the years ended December 31, 2020, 2019 and 2018 is summarized as follows (in thousands): Years ended December 31, 2020 2019 2018 Savings deposits $ 1,689 1,681 1,923 NOW and money market accounts 22,762 29,542 20,450 Certificates of deposits 9,138 14,271 8,320 $ 33,589 45,494 30,693

Borrowed Funds

Borrowed Funds	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Borrowed Funds	Borrowed Funds Borrowed funds at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 2019 Securities sold under repurchase agreements $ 99,936 60,737 FHLB line of credit 25,000 298,000 FHLB advances 1,051,036 766,409 Total borrowed funds $ 1,175,972 1,125,146 At December 31, 2020, FHLB advances were at fixed rates and mature between January 2020 and May 2022, and at December 31, 2019, FHLB advances were at fixed rates and mature between January 2019 and April 2022. These advances are secured by loans receivable under a blanket collateral agreement. Scheduled maturities of FHLB advances at December 31, 2020 are as follows (in thousands): 2020 Due in one year or less $ 754,481 Due after one year through two years 168,686 Due after two years through three years 58,650 Due after three years through four years 19,219 Thereafter — Total FHLB advances $ 1,051,036 Scheduled maturities of securities sold under repurchase agreements at December 31, 2020 are as follows (in thousands): 2020 Due in one year or less $ 99,936 Due after one year through two years — Due after two years through three years — Due after three years through four years — Due after four years through five years — Thereafter — Total securities sold under repurchase agreements $ 99,936 The following tables set forth certain information as to borrowed funds for the years ended December 31, 2020 and 2019 (in thousands): Maximum balance Average balance Weighted average interest rate 2020 Securities sold under repurchase agreements $ 115,233 86,194 0.28 % FHLB line of credit 422,000 97,853 1.09 FHLB advances 1,177,083 1,045,282 1.49 2019 Securities sold under repurchase agreements $ 96,914 71,234 .49 % FHLB line of credit 451,000 325,481 2.40 FHLB advances 1,190,006 939,916 2.11 Securities sold under repurchase agreements include arrangements with deposit customers of the Bank to sweep funds into short-term borrowings. The Bank uses available for sale debt securities to pledge as collateral for the repurchase agreements. At December 31, 2020 and December 31, 2019, available for sale debt securities pledged as collateral for repurchase agreements totaled $105.1 million and $56.5 million, respectively. Interest expense on borrowings for the years ended December 31, 2020, 2019 and 2018 amounted to $16.6 million, $28.0 million and $28.5 million, respectively.

Subordinated Debentures

Subordinated Debentures	12 Months Ended
	Dec. 31, 2020
Brokers and Dealers [Abstract]
Subordinated Debentures	Subordinated Debentures As part of the July 31, 2020 acquisition of SB One, the Company assumed subordinated debentures with a total outstanding balance of $27.9 million and a net fair value of $25.1 million. The outstanding balance consisted of $12.9 million of subordinated deferrable interest debentures sold by the former SB One Bancorp to Sussex Capital Trust II (the “Trust”) and $15 million of private placement of fixed to-floating rate subordinated notes to an institutional investor. Sussex Capital Trust II, a non-consolidated subsidiary of the Company acquired as part of the SB One acquisition and a Delaware statutory business trust established on June 28, 2007, issued $12.5 million of variable rate capital trust pass-through securities to investors. Concurrently, the Trust purchased $12.9 million of variable rate subordinated deferrable interest debentures from the former SB One Bancorp and issued $387,000 of Common Securities in consideration for payment of the assets of the Trust in the same amount. The subordinated debentures are the sole asset of the Trust and their terms are the same as the terms of the capital securities. The Company has also fully and unconditionally guaranteed the obligations of the Trust under the capital securities. The interest rate is based on the three-month LIBOR plus 144 basis points and adjusts quarterly. The rate at December 31, 2020 was 1.66%. The capital trust pass-through securities are currently redeemable by the Company at par in whole or in part. These capital trust pass-through securities must be redeemed upon final maturity on September 15, 2037. The proceeds of these trust preferred securities, which have been contributed to the Bank, are included in the Bank’s capital ratio calculations and treated as Tier I capital. In accordance with FASB ASC 810, Consolidation, Sussex Capital Trust II, is not included in our consolidated financial statements. For regulatory reporting purposes, capital trust pass-through securities qualify as Tier I capital subject to specified limitations. As part of the acquisition of SB One, the Company assumed a $15.0 million private placement of fixed to-floating rate subordinated notes to an institutional investor on December 22, 2016. The subordinated notes have a maturity date of December 22, 2026 and bear interest at the rate of 5.75% per annum, payable quarterly, for the first five years of the term, and then at a variable rate that will reset quarterly to a level equal to the then current 3-month LIBOR plus 350 basis points over the remainder of the term. Subordinated debentures at December 31, 2020 totaled 25.1 million, while interest expense on these subordinated debentures for the year ended December 31, 2020 totaled $512,000.

Benefit Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Benefit Plans	Benefit Plans Pension and Post-retirement Benefits The Bank has a noncontributory defined benefit pension plan covering its full-time employees who had attained age 21 with at least one 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 ten The following table sets forth information regarding the pension plan and post-retirement healthcare and life insurance plans (in thousands): Pension Post-retirement 2020 2019 2018 2020 2019 2018 Change in benefit obligation: Benefit obligation at beginning of year $ 33,058 28,878 31,970 23,323 20,028 22,757 Service cost — — — 78 80 115 Interest cost 1,000 1,198 1,094 712 837 786 Actuarial loss 381 63 — (169) — 18 Benefits paid (1,630) (1,493) (1,401) (627) (600) (590) Change in actuarial assumptions 2,361 4,412 (2,785) (4,512) 2,978 (3,058) Benefit obligation at end of year $ 35,170 33,058 28,878 18,805 23,323 20,028 Change in plan assets: Fair value of plan assets at beginning of year $ 49,932 43,449 46,870 — — — Actual return on plan assets 6,315 7,976 (2,020) — — — Employer contributions — — — 627 600 590 Benefits paid (1,630) (1,493) (1,401) (627) (600) (590) Fair value of plan assets at end of year 54,617 49,932 43,449 — — — Funded status at end of year $ 19,447 16,874 14,571 (18,805) (23,323) (20,028) For the years ended December 31, 2020 and 2019, the Company, in the measurement of its pension plan and post-retirement obligations updated its mortality assumptions to the RP 2014 mortality table with the fully generational projection scale MP 2020 and MP 2019 issued by The Society of Actuaries ("SOA") in October 2020 and 2019, respectively. The prepaid pension benefits of $19.4 million and the unfunded post-retirement healthcare and life insurance benefits of $18.8 million at December 31, 2020 are included in other assets and other liabilities, respectively, in the Consolidated Statements of Financial Condition. The components of accumulated other comprehensive loss (gain) related to the pension plan and other post-retirement benefits, on a pre-tax basis, at December 31, 2020 and 2019 are summarized in the following table (in thousands): Pension Post-retirement 2020 2019 2020 2019 Unrecognized prior service cost $ — — — — Unrecognized net actuarial loss (gain) 9,026 10,346 (8,055) (3,621) Total accumulated other comprehensive loss (gain) $ 9,026 10,346 (8,055) (3,621) Net periodic (benefit) increase cost for the years ending December 31, 2020, 2019 and 2018, included the following components (in thousands): Pension Post-retirement 2020 2019 2018 2020 2019 2018 Service cost $ — — — 78 80 115 Interest cost 1,000 1,198 1,094 712 837 786 Return on plan assets (2,949) (2,562) (2,769) — — — Amortization of: Net loss (gain) 696 1,015 795 (248) (825) (396) Unrecognized prior service cost — — — — — — Net periodic (benefit) increase cost $ (1,253) (349) (880) 542 92 505 The weighted average actuarial assumptions used in the plan determinations at December 31, 2020, 2019 and 2018 were as follows: Pension Post-retirement 2020 2019 2018 2020 2019 2018 Discount rate 2.30 % 3.10 % 4.25 % 2.30 % 3.10 % 4.25 % Rate of compensation increase — — — — — — Expected return on plan assets 6.00 6.00 6.00 — — — Medical and life insurance benefits cost rate of increase — — — 6.00 6.00 6.00 The Company provides its actuary with certain rate assumptions used in measuring the benefit obligation. The most significant of these is the discount rate used to calculate the period-end present value of the benefit obligations, and the expense to be included in the following year’s financial statements. A lower discount rate will result in a higher benefit obligation and expense, while a higher discount rate will result in a lower benefit obligation and expense. The discount rate assumption was determined based on a cash flow-yield curve model specific to the Company’s pension and post-retirement plans. The Company compares this rate to certain market indices, such as long-term treasury bonds, or the Citigroup pension liability indices, for reasonableness. A discount rate of 2.30% was selected for the December 31, 2020 measurement date. Assumed health care cost trend rates have a significant effect on the amounts reported for health care plans. A 1% change in the assumed health care cost trend rate would have had the following effects on post-retirement benefits at December 31, 2020 (in thousands): 1% increase 1% decrease Effect on total service cost and interest cost $ 140 110 Effect on post-retirement benefits obligation $ 3,900 3,100 Estimated future benefit payments, which reflect expected future service, as appropriate for the next five years, are as follows (in thousands): Pension Post-retirement 2021 $ 1,721 780 2022 1,740 789 2023 1,774 821 2024 1,779 822 2025 1,772 850 The weighted-average asset allocation of pension plan assets at December 31, 2020 and 2019 were as follows: Asset Category 2020 2019 Domestic equities 39 % 37 % Foreign equities 12 % 11 % Fixed income 47 % 50 % Real estate 2 % 2 % Cash — % — % Total 100 % 100 % The Company’s expected return on pension plan assets assumption is based on historical investment return experience and evaluation of input from the Plan's Investment Consultant and the Company's Benefits Committee which manages the pension plan’s assets. The expected return on pension plan assets is also impacted by the target allocation of assets, which is based on the Company’s goal of earning the highest rate of return while maintaining risk at acceptable levels. Management strives to have pension plan assets sufficiently diversified so that adverse or unexpected results from one security class will not have a significant detrimental impact on the entire portfolio. The target allocation of assets and acceptable ranges around the targets are as follows: Asset Category Target Allowable Range Domestic equities 37 % 30-41% Foreign equities 11 % 5-13% Fixed income 50 % 40-65% Real estate 2 % 0-4% Cash 0 % 0% Total 100 % The Company anticipates that the long-term asset allocation on average will approximate the targeted allocation. Actual asset allocations are the result of investment decisions by a third-party investment manager. The following tables present the assets that are measured at fair value on a recurring basis by level within the U.S. GAAP fair value hierarchy as reported on the statements of net assets available for Plan benefits at December 31, 2020 and 2019, respectively. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Fair value measurements at December 31, 2020 (in thousands) Total (Level 1) (Level 2) (Level 3) Group annuity contracts $ 64 — 64 — Mutual funds: Fixed income 25,418 25,418 — — International equity 6,581 6,581 — — Large U.S. equity 1,677 1,677 — — Small/Mid U.S. equity 1,225 1,225 — — Total mutual funds 34,901 34,901 — — Pooled separate accounts 19,652 — 19,652 — Total Plan assets $ 54,617 34,901 19,716 — Fair value measurements at December 31, 2019 (in thousands) Total (Level 1) (Level 2) (Level 3) Group annuity contracts $ 81 — 81 — Mutual funds: Fixed income 16,609 16,609 — — International equity 5,535 5,535 — — Large U.S. equity 1,496 1,496 — — Small/Mid U.S. equity 996 996 — — Total mutual funds 24,636 24,636 — — Pooled separate accounts 25,215 — 25,215 — Total Plan assets $ 49,932 24,636 25,296 — 401(k) Plan The Bank has a 401(k) plan covering substantially all employees of the Bank. For 2020, 2019 and 2018, the Bank matched 25% of the first 6% contributed by the participants. The contribution percentage is determined by the Board of Directors in its sole discretion. The Bank’s aggregate contributions to the 401(k) Plan for 2020, 2019 and 2018 were $1.0 million, $981,000 and $973,000, respectively. Supplemental Executive Retirement Plan The Bank maintains a non-qualified supplemental retirement plan for certain senior officers of the Bank. This unfunded plan, which was frozen as of April 1, 2003 provides benefits in excess of the benefits permitted to be paid by the pension plan under provisions of the tax law. Amounts expensed under this supplemental retirement plan amounted to $80,000, $85,000 and $82,000 for the years 2020, 2019 and 2018, respectively. At December 31, 2020 and 2019, $1.8 million and $1.9 million, respectively, were recorded in other liabilities on the Consolidated Statements of Financial Condition for this supplemental retirement plan. In connection with this supplemental retirement plan, an increase of $89,000, an increase of $187,000, and a decrease of $119,000, net of tax, were recorded in other comprehensive (loss) income for 2020, 2019 and 2018, respectively. Retirement Plan for the Board of Directors of Provident Bank The Bank maintains a Retirement Plan for the Board of Directors of the Bank, a non-qualified plan that provides cash payments for up to 10 years to eligible retired board members based on age and length of service requirements. The maximum payment under this plan to a board member, who terminates service on or after the age of 72 with at least ten ten The plan further provides that, in the event of a change in control (as defined in the plan), the undistributed balance of a director’s accrued benefit will be distributed to him or her within 60 days of the change in control. The Bank paid $10,000, $15,000, and $10,000 to former board members under this plan for each of the years ended December 31, 2020, 2019 and 2018, respectively. At December 31, 2020 and 2019, $127,000 and $130,000, respectively, were recorded in other liabilities on the Consolidated Statements of Financial Condition for this retirement plan. An increase of $6,334, an increase of $730, and an increase of $3,000, net of tax, were recorded in other comprehensive (loss) income for 2020, 2019 and 2018, respectively, in connection with this plan. Employee Stock Ownership Plan The ESOP is a tax-qualified plan designed to invest primarily in the Company’s common stock that provides employees with the opportunity to receive a funded retirement benefit from the Bank, based primarily on the value of the Company’s common stock. The ESOP purchased 4,769,464 shares of the Company’s common stock at an average price of $17.09 per share with the proceeds of a loan from the Company to the ESOP. The outstanding loan principal at December 31, 2020, was $25.6 million. Shares of the Company’s common stock pledged as collateral for the loan are released from the pledge for allocation to participants as loan payments are made. For the years ending December 31, 2020 and 2019, 273,307 shares and 280,522 shares from the ESOP were released, respectively. Unallocated ESOP shares held in suspense totaled 1,183,180 at December 31, 2020, and had a fair value of $21.3 million. ESOP compensation expense for the years ended December 31, 2020, 2019 and 2018 was $2.4 million, $4.5 million and $4.5 million, respectively. Non-Qualified Supplemental Defined Contribution Plan (“the Supplemental Employee Stock Ownership Plan”) Effective January 1, 2004, the Bank established a deferred compensation plan for executive management and key employees of the Bank, known as Provident Bank Non-Qualified Supplemental Employee Stock Ownership Plan (the “Supplemental ESOP”). The Supplemental ESOP was amended and restated as the Non-Qualified Supplemental Defined Contribution Plan (the “Supplemental DC Plan”), effective January 1, 2010. The Supplemental DC Plan is a non-qualified plan that provides additional benefits to certain executives whose benefits under the 401(k) Plan and ESOP are limited by tax law limitations applicable to tax-qualified plans. The Supplemental DC Plan requires a contribution by the Bank for each participant who also participates in the 401(k) Plan and ESOP equal to the amount that would have been contributed under the terms of the 401(k) Plan and ESOP but for the tax law limitations, less the amount actually contributed under the 401(k) Plan and ESOP. The Supplemental DC Plan provides for a phantom stock allocation for qualified contributions that may not be accrued in the qualified ESOP and for matching contributions that may not be accrued in the qualified 401(k) Plan due to tax law limitations. Under the Supplemental 401(k) provision, the estimated expense for the years ending December 31, 2020, 2019 and 2018 was $25,000, $22,000 and $18,000, respectively, and included the matching contributions plus interest credited at an annual rate equal to the ten-year bond-equivalent yield on U.S. Treasury securities. Under the Supplemental ESOP provision, the estimated expense for the years ending December 31, 2020, 2019 and 2018 was $180,000, $140,000 and $121,000, respectively. The phantom equity is treated as equity awards (expensed at the time of allocation) and not liability awards which would require periodic adjustment to market, as participants do not have an option to take their distribution in cash. 2019 Long-Term Equity Incentive Plan Upon stockholders’ approval of the 2019 Long-Term Equity Incentive Plan on April 25, 2019, shares available for stock awards and stock options under the Amended and Restated Long-Term Incentive Plan were reserved for issuance under the new 2019 Long-Term Equity Incentive Plan. No additional grants of stock awards and stock options will be made under the Amended and Restated Long-Term Incentive Plan. The new plan authorized the issuance of up to 1,350,000 shares of Company common stock to be issued as stock awards. Shares previously awarded under prior equity incentive plans that are subsequently forfeited or expire may also be issued under this new plan. Stock Awards As a general rule, restricted stock grants are held in escrow for the benefit of the award recipient until vested. Awards outstanding generally vest in three three A summary status of the granted but unvested stock awards as of December 31, and changes during the year, is presented below: Restricted Stock Awards 2020 2019 2018 Outstanding at beginning of year 668,826 651,099 660,783 Granted 429,122 291,034 296,411 Forfeited (59,938) (46,914) (56,296) Vested (252,829) (226,393) (249,799) Outstanding at the end of year 785,181 668,826 651,099 As of December 31, 2020, unrecognized compensation cost relating to unvested restricted stock totaled $6.4 million. This amount will be recognized over a remaining weighted average period of 1.7 years. Stock Options Each stock option granted entitles the holder to purchase one share of the Company’s common stock at an exercise price not less than the fair value of a share of the Company’s common stock at the date of grant. Options generally vest over a five three A summary of the status of the granted but unexercised stock options as of December 31, 2020, 2019 and 2018, and changes during the year is presented below: 2020 2019 2018 Number of stock options Weighted average exercise price Number of stock options Weighted average exercise price Number of stock options Weighted average exercise price Outstanding at beginning of year 499,201 $ 19.32 470,979 $ 18.36 507,656 $ 16.84 Granted 107,240 20.62 41,685 27.25 43,124 25.58 Exercised — — (13,463) 10.35 (79,801) 12.61 Forfeited (10,000) 14.68 — — — — Expired — — — — — — Outstanding at the end of year 596,441 $ 17.96 499,201 $ 19.32 470,979 $ 18.36 The total fair value of options vesting during 2020, 2019 and 2018 was $185,000, $193,000 and $189,000, respectively. Compensation expense of approximately $139,000, $76,000 and $11,000 is projected for 2021, 2022 and 2023, respectively, on stock options outstanding at December 31, 2020. The following table summarizes information about stock options outstanding at December 31, 2020: Options Outstanding Options Exercisable Range of exercise prices Number of options outstanding Average remaining contractual life Weighted average exercise price Number of options exercisable Weighted average exercise price $14.50-15.23 138,475 1.1 $ 14.89 138,475 $ 14.89 $16.38-27.25 457,966 6.1 $ 20.83 279,901 $ 19.50 The stock options outstanding and stock options exercisable at December 31, 2020 have an aggregate intrinsic value of $553,000. The expense related to stock options is based on the fair value of the options at the date of the grant and is recognized ratably over the vesting period of the options. Compensation expense related to the Company’s stock option plan totaled $190,000, $181,000 and $190,000 for 2020, 2019 and 2018, respectively. The estimated fair values were determined on the dates of grant using the Black-Scholes Option pricing model. The fair value of the Company’ stock option awards are expensed on a straight-line basis over the vesting period of the stock option. The risk-free rate is based on the implied yield on a U.S. Treasury bond with a term approximating the expected term of the option. The expected volatility computation is based on historical volatility over a period approximating the expected term of the option. The dividend yield is based on the annual dividend payment per share, divided by the grant date stock price. The expected option term is a function of the option life and the vesting period. The fair value of the option grants was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions: For the year ended December 31, 2020 2019 2018 Expected dividend yield 4.46 % 3.38 % 3.13 % Expected volatility 20.33 % 22.01 % 20.65 % Risk-free interest rate 0.75 % 2.53 % 2.65 % Expected option life 8 years 8 years 8 years The weighted average fair value of options granted during 2020, 2019 and 2018 was $1.83, $4.57 and $4.29 per option, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesThe Tax Cuts and Jobs Act ("Tax Act") was signed into law on December 22, 2017. Included as part of the law, was a permanent reduction in the federal corporate income tax rate from 35% to 21% effective January 1, 2018. Based upon the change in the tax rate, the Company revalued its net deferred tax asset at December 31, 2017. The current and deferred amounts of income tax expense (benefit) for the years ended December 31, 2020, 2019 and 2018 are as follows (in thousands): Years ended December 31, 2020 2019 2018 Current: Federal $ 27,143 22,427 41,578 State 11,389 10,354 2,493 Total current 38,532 32,781 44,071 Deferred: Federal (5,908) 1,650 (17,302) State (2,021) 24 (1,239) Total deferred (7,929) 1,674 (18,541) $ 30,603 34,455 25,530 The Company recorded a deferred tax expense (benefit) of $5.2 million, $6.6 million and ($2.4) million during 2020, 2019 and 2018, respectively, related to the unrealized gains (losses) on available for sale debt securities, which is reported in accumulated other comprehensive income (loss), net of tax. Additionally, the Company recorded a deferred tax expense (benefit) of $1.4 million, ($463,000) and $379,000 in 2020, 2019 and 2018, respectively, related to the amortization of post-retirement benefit obligations, which is reported in accumulated other comprehensive income (loss), net of tax. A reconciliation between the amount of reported total income tax expense and the amount computed by multiplying the applicable statutory income tax rate is as follows (in thousands): Years ended December 31, 2020 2019 2018 Tax expense at statutory rates $ 26,786 30,889 30,223 Increase (decrease) in taxes resulting from: State tax, net of federal income tax benefit 7,400 8,197 1,002 Tax-exempt interest income (2,609) (3,082) (2,839) Bank-owned life insurance (1,363) (1,322) (1,158) Other, net 389 (227) (1,698) $ 30,603 34,455 25,530 The net deferred tax asset is included in other assets in the Consolidated Statements of Financial Condition. The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2020 and 2019 are as follows (in thousands): 2020 2019 Deferred tax assets: Allowance for credit losses on loans $ 26,156 14,313 Allowance for credit loss OBS 1,295 — Post-retirement benefit 6,924 6,946 Deferred compensation 839 1,175 Contingent Consideration 714 — Purchase accounting adjustments 3,099 1,629 Depreciation 331 750 SERP 733 688 ESOP 1,377 1,606 Stock-based compensation 4,481 4,747 Payroll Protection Program fees 2,268 — Non-accrual interest 225 417 Federal Net Operating Loss ("NOL") 280 321 Net unrealized loss on hedging activities 1,717 — Pension liability adjustments 376 1,821 Other 925 1,223 Total gross deferred tax assets 51,740 35,636 Deferred tax liabilities: Pension expense 7,340 7,017 Deferred loan costs 4,532 5,064 Investment securities, principally due to accretion of discounts 79 70 Intangibles 1,723 1,393 Originated mortgage servicing rights 160 140 Unrealized gain on available for sale debt securities 7,802 3,038 Net unrealized gain on hedging activities — 114 Total gross deferred tax liabilities 21,636 16,836 Net deferred tax asset $ 30,104 18,800 Retained earnings at December 31, 2020 includes approximately $51.8 million for which no provision for income tax has been made. This amount represents an allocation of income to bad debt deductions for tax purposes only. Events that would result in taxation of these reserves include the failure to qualify as a bank for tax purposes, distributions in complete or partial liquidation, stock redemptions and excess distributions to stockholders. At December 31, 2020, the Company had an unrecognized tax liability of $13.4 million with respect to this reserve. As a result of the Beacon acquisition in 2011, the Company acquired federal net operating loss carryforwards. There are approximately $1.3 million of NOL carryforwards available to offset future taxable income as of December 31, 2020. If not utilized, these carryforwards will expire in 2031. Pursuant to the Tax Act, NOLs created after December 31, 2017 may be carried forward indefinitely and utilization is subject to 80% of taxable income. The federal NOLs are subject to a combined annual Code Section 382 limitation in the amount of approximately $197,000. Management has determined that it is more likely than not that it will realize the net deferred tax asset based upon the nature and timing of the items listed above. In order to fully realize the net deferred tax asset, the Company will need to generate future taxable income. Management has projected that the Company will generate sufficient taxable income to utilize the net deferred tax asset; however, there can be no assurance that such levels of taxable income will be generated. The Company’s policy is to report interest and penalties, if any, related to unrecognized tax benefits in income tax expense. The Company did not have any liabilities for uncertain tax positions or any known unrecognized tax benefits at December 31, 2020 and 2019. The Company and its subsidiaries file a consolidated U.S. Federal income tax return. For tax periods prior to December 31, 2018, New Jersey tax law does not and has not allowed for a taxpayer to file a tax return on a combined or consolidated basis with another member of the affiliated group where there is common ownership . As a result of this enacted legislation that New Jersey effectuated on July 1, 2018, beginning in 2019, the Company and its subsidiaries is required to file a combined New Jersey state income tax return on apportioned and allocated income. Also, the Company and its subsidiaries file a combined New York State income tax return on apportioned and allocated income. The Company, through its bank subsidiary, files a Pennsylvania Mutual Thrift Institution Tax return. The Company's Federal and New York State income tax returns are open for examination from 2017, the New Jersey State income tax returns are open for examination from 2016, and the Pennsylvania Mutual Thrift Institutions return is open from 2017. During the fourth quarter of 2017, the Internal Revenue Service completed its examination of the Company's 2014 Federal tax return. Th

Commitments, Contingencies and

Commitments, Contingencies and Concentrations of Credit Risk	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies and Concentrations of Credit Risk	Commitments, Contingencies and Concentrations of Credit Risk In the normal course of business, various commitments and contingent liabilities are outstanding which are not reflected in the accompanying consolidated financial statements. In the opinion of management, the consolidated financial position of the Company will not be materially affected by the outcome of such commitments or contingent liabilities. The Company is involved in various legal actions and claims arising in the normal course of its business. In the opinion of management, these legal actions and claims are not expected to have a material adverse impact on the Company’s financial condition or results of operations. A substantial portion of the Bank’s loans are to borrowers operating in or, are secured by real estate located in New Jersey, our primary market area. Accordingly, the collectability of a substantial portion of the Bank’s loan portfolio may be susceptible to changes in local real estate market conditions and the regional business environment.

Regulatory Capital Requirements

Regulatory Capital Requirements	12 Months Ended
	Dec. 31, 2020
Regulatory Assets and Liabilities Disclosure [Abstract]
Regulatory Capital Requirements	Regulatory Capital Requirements FDIC regulations require banks to maintain minimum levels of regulatory capital. Under the regulations in effect at December 31, 2020, the Bank is required to maintain: (1) a Tier 1 capital to total assets leverage ratio of 4.0%; (2) a common equity Tier 1 capital to risk-based assets ratio of 4.5%; (3) a Tier 1 capital to risk-based assets ratio of 6.0%; and (4) a total capital to risk-based assets ratio of 8.0%. In addition to establishing the minimum regulatory capital requirements, the regulations limit capital distributions and certain discretionary bonus payments to management if the institution does not hold a “capital conservation buffer” consisting of 2.5% of common equity Tier 1 capital to risk-weighted asset above the amount necessary to meet its minimum risk-based capital requirements. Under its prompt corrective action regulations, the FDIC is required to take certain supervisory actions (and may take additional discretionary actions) with respect to an undercapitalized institution. Such actions could have a direct material effect on an institution’s financial statements. The regulations establish a framework for the classification of savings institutions into five categories: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized. Generally, an institution is considered well capitalized if it has: a leverage (Tier 1) capital ratio of at least 5.00%; a common equity Tier 1 risk-based capital ratio of 6.50%; a Tier 1 risk-based capital ratio of at least 8.00%; and a total risk-based capital ratio of at least 10.00%. In the first quarter of 2020, U.S. federal regulatory authorities issued an interim final rule providing banking institutions that adopt CECL during the 2020 calendar year with the option to delay for two years the estimated impact of CECL on regulatory capital, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during the initial two-year delay (i.e., a five year transition in total). In connection with its adoption of CECL on January 1, 2020, the Company elected to utilize the five-year CECL transition. The foregoing capital ratios are based in part on specific quantitative measures of assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by the FDIC about capital components, risk weightings and other factors. As of December 31, 2020 and 2019, the Bank exceeded all minimum capital adequacy requirements to which it is subject. Further, the most recent FDIC notification categorized the Bank as a well-capitalized institution under the prompt corrective action regulations. There have been no conditions or events since that notification that management believes have changed the Bank’s capital classification. The Company is regulated as a bank holding company, and as such, is subject to examination, regulation and periodic reporting under the Bank Holding Company Act, as administered by the Federal Reserve Board (“FRB”). The FRB has adopted capital adequacy guidelines for bank holding companies on a consolidated basis substantially similar to those of the FDIC for the Bank. As of December 31, 2020 and 2019, the Company was “well capitalized” under FRB guidelines. Regulations of the FRB provide that a bank holding company must serve as a source of strength to any of its subsidiary banks and must not conduct its activities in an unsafe or unsound manner. Under the prompt corrective action provisions discussed above, a bank holding company parent of an undercapitalized subsidiary bank would be directed to guarantee, within limitations, the capital restoration plan that is required of such an undercapitalized bank. If the undercapitalized bank fails to file an acceptable capital restoration plan or fails to implement an accepted plan, the FRB may prohibit the bank holding company parent of the undercapitalized bank from paying any dividend or making any other form of capital distribution without the prior approval of the FRB. The following table shows the Company’s actual capital amounts and ratios as of December 31, 2020 and 2019, compared to the FRB minimum capital adequacy requirements and the FRB requirements for classification as a well-capitalized institution (dollars in thousands). Actual capital FRB minimum capital FRB minimum capital adequacy requirements with capital conservation buffer To be well-capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 Tier 1 leverage capital $ 1,157,505 9.30 % $ 497,794 4.00 % $ 497,794 4.00 % $ 622,243 5.00 % Common equity Tier 1 risk-based capital 1,144,618 10.46 492,359 4.50 765,892 7.00 711,185 6.50 Tier 1 risk-based capital 1,157,505 10.58 656,478 6.00 930,011 8.50 875,305 8.00 Total risk-based capital 1,306,494 11.94 875,305 8.00 1,148,837 10.50 1,094,131 10.00 Actual capital FRB minimum capital adequacy requirements FRB minimum capital To be well-capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of December 31, 2019 Tier 1 leverage capital $ 973,214 10.34 % $ 376,484 4.00 % $ 376,484 4.00 % $ 470,605 5.00 % Common equity Tier 1 risk-based capital 973,214 12.74 343,756 4.50 534,732 7.00 496,537 6.50 Tier 1 risk-based capital 973,214 12.74 458,342 6.00 649,317 8.50 611,122 8.00 Total risk-based capital 1,028,879 13.47 611,122 8.00 802,098 10.50 763,903 10.00 The following table shows the Bank’s actual capital amounts and ratios as of December 31, 2020 and 2019, compared to the FDIC minimum capital adequacy requirements and the FDIC requirements for classification as a well-capitalized institution (dollars in thousands). Actual capital FDIC minimum capital FDIC minimum capital adequacy requirements with capital conservation buffer To be well-capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 Tier 1 leverage capital $ 1,086,589 8.75 % $ 496,908 4.00 % $ 496,908 4.00 % $ 621,135 5.00 % Common equity Tier 1 risk-based capital 1,086,589 9.96 491,135 4.50 763,988 7.00 709,417 6.50 Tier 1 risk-based capital 1,086,589 9.96 654,847 6.00 927,700 8.50 873,129 8.00 Total risk-based capital 1,223,469 11.21 873,129 8.00 1,145,982 10.50 1,091,411 10.00 Actual capital FDIC minimum capital adequacy requirements FRB minimum capital To be well-capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of December 31, 2019 Tier 1 leverage capital $ 923,471 9.81 % $ 376,449 4.00 % $ 376,449 4.00 % $ 470,562 5.00 % Common equity Tier 1 risk-based capital 923,471 12.09 343,716 4.50 534,670 7.00 496,479 6.50 Tier 1 risk-based capital 923,471 12.09 458,288 6.00 649,242 8.50 611,051 8.00 Total risk-based capital 979,136 12.82 611,051 8.00 802,004 10.50 763,814 10.00

Allowance for Credit Losses on

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures	12 Months Ended
	Dec. 31, 2020
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 (dollars in thousands): 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 The provision for credit losses for off-balance sheet credit exposures totaled 1.8 million for the year ended December 31, 2020. The allowance for credit losses for off-balance sheet credit exposures was $5.0 million at December 31, 2020, included in other liabilities on the Consolidated Statements of Financial Condition.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
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, the Company 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 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 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 December 31, 2020 and December 31, 2019. 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. 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 December 31, 2020 and 2019. 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 during the years ended December 31, 2020 and 2019. The following tables present the assets and liabilities reported on the consolidated statements of financial condition at their fair value as of December 31, 2020 and 2019, by level within the fair value hierarchy (in thousands). 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 Fair Value Measurements at Reporting Date Using: December 31, 2019 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: Mortgage-backed securities $ 947,430 — 947,430 — State and municipal obligations 4,079 — 4,079 — Corporate obligations 25,410 — 25,410 — Total available for sale debt securities $ 976,919 — 976,919 — Equity Securities 825 825 — — Derivative assets 39,305 — 39,305 — $ 1,017,049 825 1,016,224 — Derivative liabilities $ 39,356 — 39,356 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 20,403 — — 20,403 Foreclosed assets 2,715 — — 2,715 $ 23,118 — — 23,118 There were no transfers between Level 1, Level 2 and Level 3 during the years ended December 31, 2020 and 2019. 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 December 31, 2020 and December 31, 2019 was $114.3 million and $77.0 million, respectively, representing cash collateral pledged to secure loan level swaps and reserves required by banking regulations. Held to Maturity Debt Securities, Net of Allowance for Credit Losses 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. 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 December 31, 2020 and December 31, 2019. Fair values are presented by level within the fair value hierarchy. 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: 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, net of allowance for credit losses: Agency obligations $ 7,600 7,601 7,601 — — Mortgage-backed securities 62 64 — 64 — State and municipal obligations 433,589 454,973 — 454,973 — Corporate obligations 9,714 9,813 — 9,813 — Total held to maturity debt securities, net of allowance for credit losses $ 450,965 472,451 7,601 464,850 — 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 Debentures 25,135 24,375 — 24,375 — Derivative liabilities 109,148 109,148 — 109,148 — Fair Value Measurements at December 31, 2019 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 $ 186,748 186,748 186,748 — — Available for sale debt securities: Mortgage-backed securities 947,430 947,430 — 947,430 — State and municipal obligations 4,079 4,079 — 4,079 — Corporate obligations 25,410 25,410 — 25,410 — Total available for sale debt securities $ 976,919 976,919 — 976,919 — Held to maturity debt securities: Agency obligations $ 6,599 6,601 6,601 — — Mortgage-backed securities 118 122 — 122 — State and municipal obligations 437,074 451,353 — 451,353 — Corporate obligations 9,838 9,890 — 9,890 — Total held to maturity debt securities $ 453,629 467,966 6,601 461,365 — FHLBNY stock 57,298 57,298 57,298 — — Equity Securities 825 825 825 — — Loans, net of allowance for credit losses 7,277,360 7,296,744 — — 7,296,744 Derivative assets 39,305 39,305 — 39,305 — Financial liabilities: Deposits other than certificates of deposits $ 6,368,582 6,368,582 6,368,582 — — Certificates of deposit 734,027 734,047 — 734,047 — Total deposits $ 7,102,609 7,102,629 6,368,582 734,047 — Borrowings 1,125,146 1,127,569 — 1,127,569 — Derivative liabilities 39,356 39,356 — 39,356 —

Selected Quarterly Financial Da

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data (Unaudited)	Selected Quarterly Financial Data (Unaudited) The following tables are a summary of certain quarterly financial data for the years ended December 31, 2020 and 2019. 2020 Quarters Ended March 31 June 30 September 30 December 31 (In thousands, except per share data) Interest income $ 88,169 81,537 93,453 100,150 Interest expense 16,148 11,709 11,468 11,412 Net interest income 72,021 69,828 81,985 88,738 Provision for credit losses 14,717 10,900 6,400 (2,298) Net interest income after provision for loan losses 57,304 58,928 75,585 91,036 Non-interest income 16,991 14,365 20,626 20,448 Non-interest expense 54,107 55,267 59,783 58,571 Income before income tax expense 20,188 18,026 36,428 52,913 Income tax expense 5,257 3,715 9,285 12,346 Net income $ 14,931 14,311 27,143 40,567 Basic earnings per share $ 0.23 0.22 0.37 0.53 Diluted earnings per share 0.23 0.22 0.37 0.53 2019 Quarters Ended March 31 June 30 September 30 December 31 (In thousands, except per share data) Interest income $ 92,411 95,648 93,026 90,385 Interest expense 17,404 19,093 19,498 17,502 Net interest income 75,007 76,555 73,528 72,883 Provision for credit losses 200 9,500 500 2,900 Net interest income after provision for loan losses 74,807 67,055 73,028 69,983 Non-interest income 12,188 15,834 18,047 17,725 Non-interest expense 48,416 49,694 49,738 53,731 Income before income tax expense 38,579 33,195 41,337 33,977 Income tax expense 7,689 8,802 9,938 8,026 Net income $ 30,890 24,393 31,399 25,951 Basic earnings per share $ 0.48 0.38 0.49 0.40 Diluted earnings per share 0.48 0.38 0.49 0.40

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following is a reconciliation of the outstanding shares used in the basic and diluted earnings per share calculations. For the Year Ended December 31, 2020 2019 2018 (In thousands, except per share data) Net income $ 96,951 112,633 118,387 Basic weighted average common shares outstanding 69,548,499 64,604,224 64,942,886 Plus: Dilutive shares 77,459 130,367 160,211 Diluted weighted average common shares outstanding 69,625,958 64,734,591 65,103,097 Earnings per share: Basic $ 1.39 1.74 1.82 Diluted $ 1.39 1.74 1.82 Anti-dilutive stock options and awards totaling 999,718 shares, 646,457 shares and 443,748 shares at December 31, 2020, 2019 and 2018, respectively, were excluded from the earnings per share calculations.

Parent-only Financial Informati

Parent-only Financial Information	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Parent-only Financial Information	Parent-only Financial Information The condensed financial statements of Provident Financial Services, Inc. (parent company only) are presented below: Condensed Statements of Financial Condition (Dollars in Thousands) December 31, 2020 December 31, 2019 Assets Cash and due from banks $ 10,634 29,723 Available for sale debt securities, at fair value 971 825 Investment in subsidiary 1,561,769 1,364,097 ESOP loan 25,555 31,113 Other assets (622) 37 Total assets $ 1,640,654 1,425,795 Liabilities and Stockholders’ Equity Due to subsidiary—SAP $ — 11,741 Other liabilities (4,279) 214 Subordinated Debentures 25,135 — Total stockholders’ equity 1,619,798 1,413,840 Total liabilities and stockholders’ equity $ 1,640,654 1,425,795 Condensed Statements of Operations (Dollars in Thousands) For the Years Ended December 31, 2020 2019 2018 Dividends from subsidiary $ 65,823 72,809 53,604 Interest income 1,245 1,470 1,657 Investment gain 147 162 2294 Total income 67,215 74,441 57,555 Subordinated debentures 512 — — Non-interest expense 1,196 1,192 1,049 Total expense 1,708 1,192 1,049 Income before income tax expense 65,507 73,249 56,506 Income tax expense — 127 692 Income before undistributed net income of subsidiary 65,507 73,122 55,814 Earnings in excess of dividends (equity in undistributed net income) of subsidiary 31,444 39,511 62,573 Net income $ 96,951 112,633 118,387 Condensed Statements of Cash Flows (Dollars in Thousands) For the Years Ended December 31, 2020 2019 2018 Cash flows from operating activities: Net income $ 96,951 112,633 118,387 Adjustments to reconcile net income to net cash provided by operating activities Earnings in excess of dividends (equity in undistributed net income) of subsidiary (31,444) (39,511) (62,573) ESOP allocation 2,401 4,533 4,516 SAP allocation 5,433 6,671 6,046 Stock option allocation 190 181 190 Increase in due to subsidiary—SAP 54,088 3,745 3,577 Decrease (increase) in other assets (138,360) 21,285 (18,598) (Decrease) increase in other liabilities (4,493) (734) 396 Net cash (used in) provided by operating activities (15,234) 108,803 51,941 Cash flows from investing activities: Cash received, net of cash consideration paid for acquisition 78,089 — — Net decrease in ESOP loan 5,558 5,643 4,663 Net cash provided by investing activities 83,647 5,643 4,663 Cash flows from financing activities: Purchases of treasury stock (21,161) (19,867) (13,172) Purchase of employee restricted shares to fund statutory tax withholding (969) (1,985) (1,896) Cash dividends paid (65,823) (72,809) (53,604) Shares issued dividend reinvestment plan 451 2,230 1,709 Stock options exercised — 139 1,007 Net cash used in financing activities (87,502) (92,292) (65,956) Net increase (decrease) in cash and cash equivalents (19,089) 22,154 (9,352) Cash and cash equivalents at beginning of period 29,723 7,569 16,921 Cash and cash equivalents at end of period $ 10,634 29,723 7,569

Other Comprehensive Income (Los

Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Other Comprehensive Income (Loss)	Other Comprehensive Income (Loss) The following table presents the components of other comprehensive income (loss) both gross and net of tax, for the years ended December 31, 2020, 2019 and 2018 (in thousands): For the Years Ended December 31, 2020 2019 2018 Before Tax Tax Effect After Tax Before Tax Tax Effect After Tax Before Tax Tax Effect After Tax Components of Other Comprehensive Income ( Loss): Unrealized losses on available for sale debt securities: Net gains (losses) arising during the period $ 20,134 (5,190) 14,944 24,987 (6,636) 18,351 (8,425) 2,296 (6,129) Reclassification adjustment for gains included in net income — — — — — — — — — Total 20,134 (5,190) 14,944 24,987 (6,636) 18,351 (8,425) 2,296 (6,129) Unrealized (losses) gains on derivatives (cash flow hedges) (7,099) 1,830 (5,269) (780) 201 (579) 304 (83) 221 Amortization related to post-retirement obligations 5,604 (1,445) 4,159 (2,176) 561 (1,615) 1,678 (457) 1,221 Total other comprehensive income (loss) $ 18,639 (4,805) 13,834 22,031 (5,874) 16,157 (6,443) 1,756 (4,687) The following table presents the changes in the components of accumulated other comprehensive loss, net of tax, for the years ended December 31, 2020 and 2019 (in thousands): Changes in Accumulated Other Comprehensive Income by Component, net of tax For the Years Ended December 31, 2020 2019 Unrealized Gains on Available for Sale Debt Securities Post-Retirement Unrealized Gains (Losses) on Derivatives (cash flow hedges) Accumulated Unrealized Gains (Losses) on Available for Sale Debt Securities Post-Retirement Unrealized Gains (Losses) on Derivatives (cash flow hedges) Accumulated Balance at the beginning of the period $ 8,746 (5,240) 315 3,821 (9,605) (3,625) 894 (12,336) Current period change in other comprehensive income (loss) 14,944 4,159 (5,269) 13,834 18,351 (1,615) (579) 16,157 Balance at the end of the period $ 23,690 (1,081) (4,954) 17,655 8,746 (5,240) 315 3,821 The following table summarizes the reclassifications out of accumulated other comprehensive (loss) income for the years ended December 31, 2020, 2019 and 2018 (in thousands): Reclassifications Out of Accumulated Other Comprehensive Amount reclassified from AOCI for the years ended December 31, Affected line item in the Consolidated 2020 2019 2018 Details of AOCI: Available for sale debt securities: Realized net gains on the sale of securities available for sale $ — — — Net gain on securities transactions — — — Income tax expense — — — Net of tax Post-retirement obligations: Amortization of actuarial losses 448 189 399 Compensation and employee benefits (1) (115) (49) (109) Income tax expense 333 140 290 Net of tax Total reclassifications $ 333 140 290 Net of tax (1) This item is included in the computation of net periodic benefit cost. See Note 13. Benefit Plans

Derivative and Hedging Activiti

Derivative and Hedging Activities	12 Months Ended
	Dec. 31, 2020
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 executes 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 December 31, 2020 and 2019, the Company had 172 and 92 interest rate swaps with an aggregate notional amount of $2.63 billion and $1.61 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 December 31, 2020 and 2019, the Company had 13 credit derivatives, respectively, with aggregate notional amounts of $121.7 million and $106.0 million, respectively, from participations in interest rate swaps as part of these loan participation arrangements. At December 31, 2020 and December 31, 2019, the fair value of these credit derivatives were $97,000 and $47,323, 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 years ended December 31, 2020, 2019 and 2018, such derivatives were used to hedge the variable cash outflows associated with Federal Home Loan Bank borrowings. 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. During the next twelve months, the Company estimates that $3.7 million will be reclassified as an increase to interest expense. As of December 31, 2020, the Company had 14 outstanding interest rate derivatives with an aggregate notional amount of $600.0 million that was designated as a cash flow hedge of interest rate risk. The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statements of Financial Condition as of December 31, 2020 and 2019 (in thousands): At December 31, 2020 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Value Consolidated Statements of Financial Condition Fair Value Derivatives not designated as hedging instruments: Interest rate products Other assets $ 107,652 Other liabilities $ 109,148 Credit contracts Other assets 97 Other liabilities — Total derivatives not designated as hedging instruments $ 107,749 $ 109,148 Derivatives designated as hedging instruments: Interest rate products Other assets $ (6,671) Other liabilities $ — Total derivatives designated as hedging instruments $ (6,671) $ — At December 31, 2019 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Value Consolidated Statements of Financial Condition Fair Value Derivatives not designated as hedging instruments: Interest rate products Other assets $ 38,830 Other liabilities $ 39,356 Credit contracts Other assets 47 Other liabilities — Total derivatives not designated as hedging instruments $ 38,877 $ 39,356 Derivatives designated as hedging instruments: Interest rate products Other assets $ 428 Other liabilities $ — Total derivatives designated as hedging instruments $ 428 $ — The table below presents the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income for the years ended December 31, 2020, 2019 and 2018 (in thousands). Gain (loss) recognized in Income on derivatives For the Year Ended December 31, Consolidated Statements of Income 2020 2019 2018 Derivatives not designated as a hedging instruments: Interest rate products Other income $ (950) (64) (414) Credit contracts Other income 30 (53) 63 Total derivatives not designated as hedging instruments $ (920) (117) (351) Derivatives designated as a hedging instruments: Loss (gain) recognized in Expense on derivatives Interest rate products Interest expense $ 1,741 (624) 312 Total derivatives designated as a hedging instruments $ 1,741 (624) 312 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. As of December 31, 2020, 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 $116.2 million at December 31, 2020. The Company has minimum collateral posting thresholds with certain of its derivative counterparties, and has posted collateral of $113.6 million against its obligations under these agreements. If the Company had breached any of these provisions at December 31, 2020, it could have been required to settle its obligations under the agreements at the termination value.

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 31, 2020
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 years ended December 31, 2020, 2019 and 2018 the out-of-scope revenue related to financial instruments were 83%, 85% and 86% of the Company's total revenue, respectively. Revenue-generating activities that are within the scope of Topic 606, are components of non-interest income. These revenue streams can generally be classified into 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 years ended December 31, 2020, 2019 and 2018: December 31, (in-thousands) 2020 2019 2018 Non-interest income In-scope of Topic 606: Wealth management fees $ 25,733 22,503 17,957 Insurance agency income 3,513 — — Banking service charges and other fees: Service charges on deposit accounts 10,312 13,117 13,330 Debit card and ATM fees 5,974 5,734 5,997 Total banking service charges and other fees 16,286 18,851 19,327 Total in-scope non-interest income 45,532 41,354 37,284 Total out-of-scope non-interest income 26,899 22,440 21,392 Total non-interest income $ 72,431 63,794 58,676 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 time of transaction or monthly.

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Leases On January 1, 2019, the Company adopted ASU 2016-02, "Leases" (Topic 842) and all subsequent ASU's that modified Topic 842. For the Company, Topic 842 primarily affected the accounting treatment for operating lease agreements in which the Company is the lessee. The Company elected the modified retrospective transition option effective with the period of adoption, elected not to recast comparative periods presented when transitioning to the new leasing standard and adjustments, if required, are made at the beginning of the period through a cumulative-effect adjustment to opening retained earnings. The Company also elected practical expedients, which allowed the Company to forego a reassessment of: (1) whether any expired or existing contracts are or contain leases; (2) the lease classification for any expired or existing leases; and (3) the initial direct costs for any existing leases. The adoption of the new standard resulted in the Company recording a right-of-use asset and an operating lease liability of $44.9 million and $46.1 million, respectively, based on the present value of the expected remaining lease payments at January 1, 2019. Also, on January 1, 2019, the Company had $5.9 million of net deferred gains associated with several sale and leaseback transactions executed prior to the adoption of ASU 2016-02. In accordance with the guidance, these net deferred gains were adjusted, net of tax, as a cumulative-effect adjustment to opening retained earnings. All of the leases in which the Company is the lessee are classified as operating leases and are primarily comprised of real estate property for branches and administrative offices with terms extending through 2040. The following table represents the consolidated statements of financial condition classification of the Company’s right-of use-assets and lease liabilities at December 31, 2020 (in thousands): Classification December 31, 2020 Lease Right-of-Use Assets: Operating lease right-of-use assets Other assets $ 41,142 Lease Liabilities: Operating lease liabilities Other liabilities $ 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. At December 31, 2020, the weighted-average remaining lease term and the weighted-average discount rate for the Company's operating leases were 9.2 years and 3.22%, respectively. The following table represents 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): Year ended December 31, 2020 Year ended December 31, 2019 Lease Costs Operating lease cost $ 9,012 8,433 Variable lease cost 2,756 2,765 Total Lease Cost $ 11,768 11,198 Cash paid for amounts included in the measurement of lease liabilities (in thousands): Year ended December 31, 2020 Year ended December 31, 2019 Operating cash flows from operating leases $ 8,863 8,304 For the year ended December 31, 2020, the Company added nine lease obligations related to the SB One acquisition. The Company recorded a $3.8 million right-of-use asset and lease liability for these lease obligations. Future minimum payments for operating leases with initial or remaining terms of one year or more as of December 31, 2020 were as follows (in thousands): Operating Leases Years ended: 2020 $ 7,165 2021 6,227 2022 5,712 2023 5,309 2024 4,722 Thereafter 20,001 Total future minimum lease payments 49,136 Amounts representing interest 7,094 Present value of net future minimum lease payments $ 42,042
Leases	Leases On January 1, 2019, the Company adopted ASU 2016-02, "Leases" (Topic 842) and all subsequent ASU's that modified Topic 842. For the Company, Topic 842 primarily affected the accounting treatment for operating lease agreements in which the Company is the lessee. The Company elected the modified retrospective transition option effective with the period of adoption, elected not to recast comparative periods presented when transitioning to the new leasing standard and adjustments, if required, are made at the beginning of the period through a cumulative-effect adjustment to opening retained earnings. The Company also elected practical expedients, which allowed the Company to forego a reassessment of: (1) whether any expired or existing contracts are or contain leases; (2) the lease classification for any expired or existing leases; and (3) the initial direct costs for any existing leases. The adoption of the new standard resulted in the Company recording a right-of-use asset and an operating lease liability of $44.9 million and $46.1 million, respectively, based on the present value of the expected remaining lease payments at January 1, 2019. Also, on January 1, 2019, the Company had $5.9 million of net deferred gains associated with several sale and leaseback transactions executed prior to the adoption of ASU 2016-02. In accordance with the guidance, these net deferred gains were adjusted, net of tax, as a cumulative-effect adjustment to opening retained earnings. All of the leases in which the Company is the lessee are classified as operating leases and are primarily comprised of real estate property for branches and administrative offices with terms extending through 2040. The following table represents the consolidated statements of financial condition classification of the Company’s right-of use-assets and lease liabilities at December 31, 2020 (in thousands): Classification December 31, 2020 Lease Right-of-Use Assets: Operating lease right-of-use assets Other assets $ 41,142 Lease Liabilities: Operating lease liabilities Other liabilities $ 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. At December 31, 2020, the weighted-average remaining lease term and the weighted-average discount rate for the Company's operating leases were 9.2 years and 3.22%, respectively. The following table represents 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): Year ended December 31, 2020 Year ended December 31, 2019 Lease Costs Operating lease cost $ 9,012 8,433 Variable lease cost 2,756 2,765 Total Lease Cost $ 11,768 11,198 Cash paid for amounts included in the measurement of lease liabilities (in thousands): Year ended December 31, 2020 Year ended December 31, 2019 Operating cash flows from operating leases $ 8,863 8,304 For the year ended December 31, 2020, the Company added nine lease obligations related to the SB One acquisition. The Company recorded a $3.8 million right-of-use asset and lease liability for these lease obligations. Future minimum payments for operating leases with initial or remaining terms of one year or more as of December 31, 2020 were as follows (in thousands): Operating Leases Years ended: 2020 $ 7,165 2021 6,227 2022 5,712 2023 5,309 2024 4,722 Thereafter 20,001 Total future minimum lease payments 49,136 Amounts representing interest 7,094 Present value of net future minimum lease payments $ 42,042

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Principles of Consolidation	Principles of ConsolidationThe consolidated financial statements include the accounts of Provident Financial Services, Inc. (the “Company”), Provident Bank (the “Bank”) and their wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Certain reclassifications have been made in the consolidated financial statements to conform with current year classifications.
Business	Business The Company, through the Bank, provides a full range of banking services to individual and business customers through branch offices in New Jersey, Queens County, New York and eastern Pennsylvania. The Bank is subject to competition from other financial institutions and to the regulations of certain federal and state agencies, and undergoes periodic examinations by those regulatory authorities.
Basis of Financial Statement Presentation	Basis of Financial Statement Presentation The consolidated financial statements of the Company have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). In preparing the consolidated financial statements, management is required to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the reported amounts of assets and liabilities and disclosures about contingent assets and liabilities as of the dates of the consolidated statements of financial condition, and revenues and expenses for the periods then ended. Such estimates are used in connection with the determination of the allowance for credit losses, evaluation of goodwill for impairment, evaluation of the need for valuation allowances on deferred tax assets, and determination of liabilities related to retirement and other post-retirement benefits, among others. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the currently forecasted economic environment, which management believes to be reasonable under the circumstances. Such estimates and assumptions are adjusted when facts and circumstances dictate. Illiquid credit markets, volatile securities markets, and declines in the housing market and the economy generally have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash and due from banks, Federal funds sold and commercial paper with original maturity dates less than 90 days.
Securities	Securities Securities include held to maturity debt securities and available for sale debt securities. The available for sale debt securities portfolio is carried at estimated fair value, with any unrealized gains or losses, net of taxes, reported as accumulated other comprehensive income or loss in Stockholders’ Equity. Estimated fair values are based on market quotations or matrix pricing. Securities which the Company has the positive intent and ability to hold to maturity are classified as held to maturity debt securities and carried at amortized cost. On January 1, 2020, the Company adopted CECL which replaces the incurred loss methodology with an expected loss methodology. 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 December 31, 2020 and the Company had one security rated with a triple-B by Moody’s Investors Service. Premiums on securities are amortized to income using a method that approximates the interest method over the remaining period to the earliest call date or contractual maturity, adjusted for anticipated prepayments. Discounts on securities are accreted to income over the remaining period to the contractual maturity, adjusted for anticipated prepayments.. Dividend and interest income are recognized when earned. Realized gains and losses are recognized when securities are sold or called based on the specific identification method.
Fair Value of Financial Instruments	Fair Value of Financial Instruments 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). 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.
Federal Home Loan Bank of New York Stock	Federal Home Loan Bank of New York Stock The Bank, as a member of the Federal Home Loan Bank of New York (“FHLBNY”), is required to hold shares of capital stock of the FHLBNY at cost based on a specified formula. The Bank carries this investment at cost, which approximates fair value.
Loans	Loans Loans receivable are carried at unpaid principal balances plus unamortized premiums, purchase accounting mark-to-market adjustments, certain deferred direct loan origination costs and deferred loan origination fees and discounts, less the allowance for credit losses. The Bank defers loan origination fees and certain direct loan origination costs and accretes or amortizes such amounts as an adjustment to the yield over the expected lives of the related loans using the interest method. Premiums and discounts on loans purchased are amortized or accreted as an adjustment of yield over the contractual lives of the related loans, adjusted for prepayments when applicable, using methodologies which approximate the interest method. Loans are generally placed on non-accrual status when they are past due 90 days or more as to contractual obligations or when other circumstances indicate that collection is questionable. When a loan is placed on non-accrual status, any interest accrued but not received is reversed against interest income. Payments received on a non-accrual loan are either applied to the outstanding principal balance or recorded as interest income, depending on an assessment of the ability to collect the loan. A non-accrual loan is restored to accrual status when principal and interest payments become less than 90 days past due and its future collectability is reasonably assured. An impaired loan is defined as a loan for which it is probable, based on current information, that the Bank will not collect all amounts due under the contractual terms of the loan agreement. Impaired loans are individually assessed to determine that each loan’s carrying value is not in excess of the fair value of the related collateral or the present value of the expected future cash flows. Residential mortgage and consumer loans are deemed smaller balance homogeneous loans which are evaluated collectively for impairment and are therefore excluded from the population of impaired loans. Purchased credit deteriorated (“PCD”) loans are loans acquired that have experienced more-than-insignificant deterioration in credit quality since origination. The Company evaluates 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. 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.
Allowance for Loan Losses	Allowance for Credit Losses on Loans The allowance for credit losses is a valuation account that reflects management’s evaluation of the current expected credit losses in the loan portfolio. The Company maintains the allowance for credit losses through provisions for credit losses that are charged to income. Charge-offs against the allowance for credit losses are taken on loans where management determines that the collection of loan principal and interest is unlikely. Recoveries made on loans that have been charged-off are credited to the allowance for credit losses. On January 1, 2020, the Company adopted ASU 2016-13, "Measurement of Credit Losses on Financial Instruments,” which replaces the incurred loss methodology with an expected loss methodology that is referred to as the current expected credit loss (“CECL”) methodology. It also applies to off-balance sheet credit exposures, including loan commitments and lines of credit. The adoption of the new standard resulted in the Company recording a $7.9 million increase to the allowance for credit losses and a $3.2 million liability for off-balance sheet credit exposures. The adoption of the standard did not result in a change to the Company's results of operations upon adoption as it was recorded as an $8.3 million cumulative effect adjustment, net of income taxes, to retained earnings. The allowance for credit losses is a valuation account that reflects management’s evaluation of the current expected credit losses in the loan portfolio. The Company maintains the allowance for credit losses through provisions for credit losses that are charged to income. Charge-offs against the allowance for credit losses are taken on loans where management determines that the collection of loan principal and interest is unlikely. Recoveries made on loans that have been charged-off are credited to the allowance for credit losses. The calculation of the allowance for credit losses is a critical accounting policy of the Company. Management estimates the allowance balance using relevant available information, from internal and external sources, related to past events, current conditions, and a reasonable and supportable forecast. Historical credit loss experience for both the Company and peers provides the basis for the estimation of expected credit losses, where observed credit losses are converted to probability of default rate (“PDR”) curves through the use of segment-specific loss given default (“LGD”) risk factors that convert default rates to loss severity based on industry-level, observed relationships between the two variables for each segment, primarily due to the nature of the underlying collateral. These risk factors were assessed for reasonableness against the Company’s own loss experience and adjusted in certain cases when the relationship between the Company’s historical default and loss severity deviate from that of the wider industry. The historical PDR curves, together with corresponding economic conditions, establish a quantitative relationship between economic conditions and loan performance through an economic cycle. Using the historical relationship between economic conditions and loan performance, management’s expectation of future loan performance is incorporated using an externally developed economic forecast. This forecast is applied over a period that management has determined to be reasonable and supportable. Beyond the period over which management can develop or source a reasonable and supportable forecast, the model will revert to long-term average economic conditions using a straight-line, time-based methodology. The Company's current forecast period is six quarters, with a four quarter reversion period to historical average macroeconomic factors. The Company's economic forecast is approved by the Company's Asset-Liability Committee. The allowance for credit losses is measured on a collective (pool) basis, with both a quantitative and qualitative analysis that is applied on a quarterly basis, when similar risk characteristics exist. The respective quantitative allowance for each segment is measured using an econometric, discounted PD/LGD modeling methodology in which distinct, segment-specific multi-variate regression models are applied to an external economic forecast. Under the discounted cash flows methodology, expected credit losses are estimated over the effective life of the loans by measuring the difference between the net present value of modeled cash flows and amortized cost basis. Contractual cash flows over the contractual life of the loans are the basis for modeled cash flows, adjusted for modeled defaults and expected prepayments and discounted at the loan-level effective interest rate. The contractual term excludes expected extensions, renewals, and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a troubled debt restructuring (“TDR”) will be executed with an individual borrower or the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company. After quantitative considerations, management applies additional qualitative adjustments so that the allowance for credit loss is reflective of the estimate of lifetime losses that exist in the loan portfolio at the balance sheet date. Qualitative considerations include limitations inherent in the quantitative model; portfolio concentrations that may affect loss experience across one or more components of the portfolio; changes in industry conditions; changes in the Company’s loan review process; changes in the Company's loan policies and procedures, economic forecast uncertainty and model imprecision. Portfolio segment is defined as the level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses. Management developed segments for estimating loss based on type of borrower and collateral which is generally based upon federal call report segmentation and have been combined or sub-segmented as needed to ensure loans of similar risk profiles are appropriately pooled. As of December 31, 2020, the portfolio and class segments for the Company’s loan portfolio were: • Mortgage Loans – Residential, Commercial Real Estate, Multi-Family and Construction • Commercial Loans – Commercial Owner Occupied and Commercial Non-Owner Occupied • Consumer Loans – First Lien Home Equity and Other Consumer The allowance for credit losses on loans individually evaluated for impairment is based upon loans that have been identified through the Company’s normal loan monitoring process. This process includes the review of delinquent and problem loans at the Company’s Delinquency, Credit, Credit Risk Management and Allowance Committees; or which may be identified through the Company’s loan review process. Generally, the Company only evaluates loans individually for impairment if the loan is non-accrual, non-homogeneous and the balance is at least $1.0 million, or if the loan was modified in a Troubled Debt Restructuring (“TDR”). When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate. If the loan is not collateral dependent, the allowance for credit losses related to individually assessed loans is based on discounted expected cash flows using the loan’s initial effective interest rate. A loan for which the terms have been modified resulting in a concession by the Company, and for which the borrower is experiencing financial difficulties is considered to be a TDR. The allowance for credit losses on a TDR is measured using the same method as all other impaired loans, except that the original interest rate is used to discount the expected cash flows, not the rate specified within the restructuring. As previously noted, in accordance with the CARES Act, the Company elected to not apply troubled debt restructuring classification to any COVID-19 related loan modifications that occurred after March 1, 2020 to borrowers who were current as of December 31, 2019. Accordingly, these modifications were not classified as TDRs. In addition, for loans modified in response to the COVID-19 pandemic that did not meet the above criteria (e.g., current payment status at December 31, 2019), the Company applied the guidance included in an interagency statement issued by the bank regulatory agencies. This guidance states that loan modifications performed in light of the COVID-19 pandemic, including loan payment deferrals that are up to six months in duration, that were granted to borrowers who were current as of the implementation date of a loan modification program or modifications granted under government mandated modification programs, are not TDRs. For loans acquired that have experienced more-than-insignificant deterioration in credit quality since origination are considered PCD loans. The Company evaluates 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. 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. Management believes the primary risks inherent in the portfolio are a general decline in the economy, a decline in real estate market values, rising unemployment or a protracted period of elevated unemployment, increasing vacancy rates in commercial investment properties and possible increases in interest rates in the absence of economic improvement. As the impact of the COVID-19 pandemic continues to unfold, the effectiveness of medical advances, government programs, and the resulting impact on consumer behavior and employment conditions will have a material bearing on future credit conditions. Any one or a combination of these events may adversely affect borrowers’ ability to repay the loans, resulting in increased delinquencies, credit losses and higher levels of provisions. Management considers it important to maintain the ratio of the allowance for credit losses to total loans at an acceptable level given current and forecasted economic conditions, interest rates and the composition of the portfolio. Although management believes that the Company has established and maintained the allowance for credit losses at appropriate levels, additions may be necessary if future economic and other conditions differ substantially from the current operating environment and economic forecast. Management evaluates its estimates and assumptions on an ongoing basis giving consideration to forecasted economic factors, historical loss experience and other factors. Such estimates and assumptions are adjusted when facts and circumstances dictate. In addition to the ongoing impact of the COVID-19 pandemic, illiquid credit markets, volatile securities markets, and declines in the housing and commercial real estate markets and the economy in general may increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. In addition, various regulatory agencies periodically review the adequacy of the Company’s allowance for credit losses as an integral part of their examination process. Such agencies may require the Company to recognize additions to the allowance or additional write-downs based on their judgments about information available to them at the time of their examination. Although management uses the best information available, the level of the allowance for credit losses remains an estimate that is subject to significant judgment and short-term change. 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 year ended, December 31, 2020, changing economic forecasts attributable to the COVID-19 pandemic and projected economic recovery led to provisions for credit losses and off-balance sheet credit exposures. See Note 7 to the Consolidated Financial Statements for more information on the allowance for credit losses on loans Allowance for Loan Losses - Incurred Loss Method Prior to the adoption of CECL on January 1, 2020, the Company calculated the allowance for loan losses using the incurred loss method. Using this method, the allowance represented management's best estimate of probably incurred losses inherent in the current loan portfolio. While management used information to recognize losses on loans, additions and reductions of the allowance for loan losses may fluctuate from one reporting period to another based on changes in economic conditions or changes in the values of properties securing loans in the process of foreclosure. The evaluation of the various components of the allowance for loan losses required considerable judgement in order to estimate inherent loss exposures. Each quarter, the lending group prepared individual Credit Risk Management Reports for the Credit Administration Department. These reports review all commercial loans and commercial mortgage loans that have been determined to involve above-average risk (risk rating of 5 or worse). The Credit Risk Management Reports contain the reason for the risk rating assigned to each loan, status of the loan and any current developments. These reports are submitted to a committee chaired by the Chief Credit Officer. Each loan officer reviews the loan and the corresponding Credit Risk Management Report with the committee and the risk rating is evaluated for appropriateness. Management estimated the amount of loan losses for groups of loans by applying quantitative loss factors to loan segments at the risk rating level, and applying qualitative adjustments to each loan segment at the portfolio level. Quantitative loss factors give consideration to historical loss experience by loan type based upon an appropriate look-back period and adjusted for a loss emergence period; these factors are evaluated at least annually. Qualitative adjustments give consideration to other qualitative or environmental factors such as: a. levels of and trends in delinquencies and impaired loans; b. levels of and trends in charge-offs and recoveries; c. trends in volume and terms of loans; d. effects of any changes in lending policies, procedures and practices; e. changes in the quality or results of the Bank’s loan review system; f. experience, ability, and depth of lending management and other relevant staff; g. national and local economic trends and conditions; h. industry conditions; i. effects of changes in credit concentration; and j. changes in collateral values. Qualitative adjustments reflect risks in the loan portfolio not captured by the quantitative loss factors and, as such, are evaluated from a risk level perspective relative to the risk levels present over the look-back period. Qualitative adjustments are recalibrated at least annually and evaluated at least quarterly. The reserves resulting from the application of both of these sets of loss factors are combined to arrive at the general allowance for loan losses. The reserve factors applied to each loan risk rating are inherently subjective in nature. Reserve factors are assigned to each of the risk rating categories. This methodology permits adjustments to the allowance for loan losses in the event that, in management’s judgment, significant conditions impacting the credit quality and collectability of the loan portfolio as of the evaluation date are not otherwise adequately reflected in the analysis.
Foreclosed Assets	Foreclosed Assets Assets acquired through foreclosure or deed in lieu of foreclosure are carried at the lower of the outstanding loan balance at the time of foreclosure or fair value, less estimated costs to sell. Fair value is generally based on recent appraisals. When an asset is acquired, the excess of the loan balance over fair value, less estimated costs to sell, 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.
Banking Premises and Equipment	Banking Premises and Equipment Land is carried at cost. Banking premises, furniture, fixtures and equipment are carried at cost, less accumulated depreciation, computed using the straight-line method based on their estimated useful lives. Leasehold improvements, carried at cost, net of accumulated depreciation, are amortized over the terms of the leases or the estimated useful lives of the assets, whichever are shorter, using the straight-line method. Maintenance and repairs are charged to expense as incurred.
Income Taxes	Income Taxes The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in tax expense in the period that includes the enactment date. Deferred tax assets and liabilities are reported as a component of other assets on the Consolidated Statements of Financial Condition. The determination of whether deferred tax assets will be realizable is predicated on estimates of future taxable income. Such estimates are subject to management’s judgment. A valuation reserve is established when management is unable to conclude that it is more likely than not that it will realize deferred tax assets based on the nature and timing of these items. The Company recognizes, when applicable, interest and penalties related to unrecognized tax benefits in the provision for income taxes.
Trust Assets	Trust Assets Trust assets consisting of securities and other property (other than cash on deposit held by the Bank in fiduciary or agency capacities for customers of the Bank’s wholly owned subsidiary, Beacon) are not included in the accompanying consolidated statements of financial condition because such properties are not assets of the Bank.
Intangible Assets	Intangible Assets Intangible assets of the Bank consist of goodwill, core deposit premiums, customer relationship premium and mortgage servicing rights. Goodwill represents the excess of the purchase price over the estimated fair value of identifiable net assets acquired through purchase acquisitions. Goodwill is an intangible asset with an indefinite useful life and, in accordance with GAAP, is not amortized, but is evaluated for impairment on an annual basis, or more frequently if events or changes in circumstances indicate potential impairment between annual measurement dates. Goodwill is analyzed for impairment each year at September 30. As permitted by GAAP, the Company prepares a qualitative assessment in determining whether goodwill may be impaired. The factors considered in the assessment include macroeconomic conditions, industry and market conditions and overall financial performance of the Company, among others. The Company completed its annual goodwill impairment test as of September 30, 2020. Based upon its qualitative assessment of goodwill, the Company concluded that goodwill was not impaired and no further quantitative analysis was warranted. Core deposit premiums represent the intangible value of depositor relationships assumed in previous purchase acquisitions and are amortized on an accelerated basis over 8.8 years, while the core deposit premium related to SB One is amortized over its estimated useful life of 10.0 years. Customer relationship premiums represent the intangible value of customer relationships assumed in the purchase acquisitions of Beacon Trust Company ("Beacon"), The MDE Group, Inc. ("MDE"), Tirschwell & Loewy, Inc. ("T&L"), and SB One Bank and are amortized on an accelerated basis over 12.0 years, 10.4 years, 10.0 years, and 13.0 years respectively. Mortgage servicing rights are recorded when purchased or when originated mortgage loans are sold, with servicing rights retained. Mortgage servicing rights are amortized on an accelerated method based upon the estimated lives of the related loans, adjusted for prepayments. Mortgage servicing rights are carried at the lower of amortized cost or fair value.
Bank-owned Life Insurance	Bank-owned Life Insurance Bank-owned life insurance is accounted for using the cash surrender value method and is recorded at its realizable value.
Employee Benefit Plans	Employee Benefit Plans The Bank maintains a pension plan which covers full-time employees hired prior to April 1, 2003, the date on which the pension plan was frozen. The Bank’s policy is to fund at least the minimum contribution required by the Employee Retirement Income Security Act of 1974. GAAP requires an employer to: (a) recognize in its statement of financial position the over-funded or under-funded status of a defined benefit postretirement plan measured as the difference between the fair value of plan assets and the benefit obligation; (b) measure a plan’s assets and its obligations that determine its funded status at the end of the employer’s fiscal year (with limited exceptions); and (c) recognize as a component of other comprehensive income, net of tax, the actuarial gains and losses and the prior service costs and credits that arise during the period. The Bank has a 401(k) plan covering substantially all employees of the Bank. The Bank may match a percentage of the first 6% contributed by participants. The Bank’s matching contribution, if any, is determined by the Board of Directors in its sole discretion. The Bank has an Employee Stock Ownership Plan (“ESOP”). The funds borrowed by the ESOP from the Company to purchase the Company’s common stock are being repaid from the Bank’s contributions and dividends paid on unallocated ESOP shares over a period of up to 30 years. The Company’s common stock not allocated to participants is recorded as a reduction of stockholders’ equity at cost. Compensation expense for the ESOP is based on the average price of the Company’s stock during each quarter and the amount of shares allocated during the quarter. The Bank has an Equity Plan designed to provide competitive compensation for demonstrated performance and to align the interests of participants directly to increases in shareholder value. The Equity Plan provides for performance-vesting grants as well as time-vesting grants. Time-vesting stock awards, stock options and performance vesting stock awards that are based on a performance condition, such as return on average assets, are valued on the closing stock price on the date of grant. Performance-vesting stock awards and options that are based on a market condition, such as total shareholder return, would be valued using a generally accepted statistical technique to simulate future stock prices for Provident and the components of the peer group which Provident would be measured against. Expense related to time-vesting stock awards and stock options is based on the fair value of the common stock on the date of the grant and on the fair value of the stock options on the date of the grant, respectively, and is recognized ratably over the vesting period of the awards. Performance vesting stock awards and stock options are either dependent upon a market condition or a performance condition. A market condition performance metric is tied to a stock price, either on an absolute basis, or a relative basis against peers, while a performance-condition is based on internal operations, such as earnings per share. The expense related to a market condition performance-vesting stock award or stock option requires an initial Monte Carlo simulation to determine grant date fair value, which will be recognized as a compensation expense regardless of actual payout, assuming that the executive is still employed at the end of the requisite service period. If pre-vesting termination (forfeiture) occurs, then any expense recognized to date can be reversed. The grant date fair value is recognized ratably over the performance period. The expense related to a performance condition stock award or stock option is based on the fair value of the award on the date of grant, adjusted periodically based upon the number of awards or options expected to be earned, recognized over the performance period. In connection with the First Sentinel acquisition in July 2004, the Company assumed the First Savings Bank Directors’ Deferred Fee Plan (the “DDFP”). The DDFP was frozen prior to the acquisition. The Company recorded a deferred compensation equity instrument and corresponding contra-equity account for the value of the shares held by the DDFP at the July 14, 2004 acquisition date. These accounts will be liquidated as shares are distributed from the DDFP in accordance with the plan document. At December 31, 2020, there were 180,897 shares held by the DDFP. The Bank maintains a non-qualified plan that provides supplemental benefits to certain executives who are prevented from receiving the full benefits contemplated by the 401(k) Plan’s and the ESOP’s benefit formulas under tax law limits for tax-qualified plans.
Post-retirement Benefits Other Than Pensions	Post-retirement Benefits Other Than Pensions The Bank provides post-retirement health care and life insurance plans to certain of its employees. The life insurance coverage is noncontributory to the participant. Participants contribute to the cost of medical coverage based on the employee’s length of service with the Bank. 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. On December 31, 2002, the Bank eliminated postretirement healthcare benefits for employees with less than 10 years of service. GAAP requires an employer to: (a) recognize in its statement of financial position the over-funded or under-funded status of a defined benefit post-retirement plan measured as the difference between the fair value of plan assets and the benefit obligation; (b) measure a plan’s assets and its obligations that determine its funded status as of the end of the employer’s fiscal year (with limited exceptions); and (c) recognize as a component of other comprehensive income, net of tax, the actuarial gains and losses and the prior service costs and credits that arise during the period.
Derivatives	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 and, 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 interest rate derivatives not used to manage interest rate risk 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 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. 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. These derivatives were used to hedge the variable cash outflows associated with Federal Home Loan Bank borrowings. 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.
Comprehensive Income	Comprehensive Income Comprehensive income is divided into net income and other comprehensive income (loss). Other comprehensive income (loss) includes items previously recorded directly to equity, such as unrealized gains and losses on available for sale debt securities, unrealized gains and losses on derivatives and amortization related to post-retirement obligations. Comprehensive income is presented in a separate Consolidated Statement of Comprehensive Income.
Segment Reporting	Segment Reporting The Company’s operations are solely in the financial services industry and include providing traditional banking and other financial services to its customers. The Company operates primarily in the geographical regions of northern and central New Jersey, Queens County, New York and eastern Pennsylvania. Management makes operating decisions and assesses performance based on an ongoing review of the Bank’s consolidated financial results. Therefore, the Company has a single operating segment for financial reporting purposes.
Earnings Per Share	Earnings Per Share Basic earnings per share is computed by dividing income available to common stockholders by the weighted average number of shares outstanding for the period. Diluted earnings per share reflects the potential dilution that could occur if securities or other contracts to issue common stock (such as stock options) were exercised or resulted in the issuance of common stock. These potentially dilutive shares would then be included in the weighted average number of shares outstanding for the period using the treasury stock method. Shares issued and shares reacquired during the period are weighted for the portion of the period that they were outstanding.
Impact of Recent Accounting Pronouncements	Impact of Recent Accounting Pronouncements Accounting Pronouncements Adopted in 2020 In May 2019, the Financial Accounting Standards Board ("FASB") issued ASU No. 2019-05, “Financial Instruments - Credit Losses (Topic 326); Targeted Transition Relief.” This ASU allows entities to irrevocably elect, upon adoption of ASU 2016-13, the fair value option on financial instruments that (1) were previously recorded at amortized cost and (2) are within the scope of ASC 326-20 if the instruments are eligible for the fair value option under ASC 825-10. The fair value option election does not apply to held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. ASU 2019-05 had the same effective date as ASU 2016-13 (i.e., the first quarter of 2020). The adoption of this guidance had no impact on the Company’s consolidated financial statements. In April 2019, the FASB issued ASU No. 2019-04, "Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments" which clarifies and improves areas of guidance related to the recently issued standards on credit losses, hedging, recognition and measurement. The most significant provisions of this ASU relate to how companies will estimate expected credit losses under Topic 326 by incorporating (1) expected recoveries of financial assets, including recoveries of amounts expected to be written off and those previously written off, and (2) clarifying that contractual extensions or renewal options that are not unconditionally cancellable by the lender are considered when determining the contractual term over which expected credit losses are measured. ASU No. 2019-04 is effective for reporting periods beginning January 1, 2020. The adoption of this guidance had no impact related to Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments on the Company’s consolidated financial statements. At January 1, 2020, a $1.3 million allowance for credit losses for off-balance sheet credit exposures was recorded related to extensions on construction loans and is reflected below in the ASU 2016-13 calculation. In August 2018, the FASB issued ASU No. 2018-13, “Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement.” This ASU eliminates, adds and modifies certain disclosure requirements for fair value measurements. Among the changes, entities will no longer be required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, but will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. ASU No. 2018-13 was effective for interim and annual reporting periods beginning after December 15, 2019; early adoption was permitted. Entities are also allowed to elect early adoption of the eliminated or modified disclosure requirements and delay adoption of the new disclosure requirements until their effective date. The adoption of this guidance had no impact on the Company’s consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments.” The main objective of this ASU is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments by a reporting entity at each reporting date. The amendments in this ASU require financial assets measured at amortized cost to be presented at the net amount expected to be collected. The allowance for credit losses would represent a valuation account that would be deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. The income statement would reflect the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The measurement of expected credit losses would be based on relevant information about past events, including historical experience, current conditions, and a reasonable and supportable forecast that affect the collectability of the reported amount. An entity will be required to use judgment in determining the relevant information and estimation methods that are appropriate in its circumstances. Furthermore, ASU 2016-13 will necessitate establishing an allowance for expected credit losses on held to maturity debt securities. This also applies to off-balance sheet credit exposures, which includes loan commitments, unused lines of credit and other similar instruments. The amendments in ASU 2016-13 are effective for fiscal years, including interim periods, beginning after December 15, 2019. Early adoption of this ASU was permitted for fiscal years beginning after December 15, 2018. The adoption of ASU 2016-13 involves changing from an "incurred loss" model, which encompasses allowances for current known and inherent losses within the portfolio, to an "expected loss" model (“CECL”), which encompasses allowances for losses expected to be incurred over the life of the portfolio. The Company adopted CECL on January 1, 2020 using the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet ("OBS") credit exposures. Results for reporting periods beginning after January 1, 2020 are presented under ASC 326 while prior period amounts continue to be recorded with previously applicable GAAP. The Company recorded a $7.9 million increase to the allowance for credit losses and a $3.2 million liability for off-balance sheet credit exposures, which resulted in an $8.3 million cumulative effect adjustment decrease, net of tax, to retained earnings. With regard to regulatory capital, the Company has elected to utilize the five-year CECL transition, which gives the option to delay for two years the estimated impact of CECL on regulatory capital, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during the initial two-year delay. Accounting Pronouncements Not Yet Adopted

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2020
Business Combinations [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 (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 Mortgage escrow deposits — 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, net 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 at 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

Held to Maturity Debt Securit_2

Held to Maturity Debt Securities (Tables)	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investment Securities Held to Maturity	Held to maturity debt securities at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 Amortized cost Gross unrealized gains Gross unrealized losses Allowance for credit losses Fair value Agency obligations $ 7,600 6 (5) — 7,601 Mortgage-backed securities 62 2 — — 64 State and municipal obligations 433,655 21,442 (58) (66) 454,973 Corporate obligations 9,726 101 (2) (12) 9,813 $ 451,043 21,551 (65) (78) 472,451 At December 31, 2020, total amortized cost, net of allowance for credit losses totaled $451.0 million. 2019 Amortized cost Gross unrealized gains Gross unrealized losses Allowance for credit losses Fair value Agency obligations $ 6,599 11 (9) — 6,601 Mortgage-backed securities 118 4 — — 122 State and municipal obligations 437,074 14,394 (115) — 451,353 Corporate obligations 9,838 58 (6) — 9,890 $ 453,629 14,467 (130) — 467,966
Securities Held to Maturity by Contractual Maturity	The amortized cost and fair value of held to maturity debt securities at December 31, 2020 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. 2020 Amortized cost Fair value Due in one year or less $ 21,623 21,736 Due after one year through five years 133,869 137,978 Due after five years through ten years 216,671 229,902 Due after ten years 78,818 82,849 $ 450,981 472,465
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 related to 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 (dollars in thousands): 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
Disclosure Regarding Length of Time on Investment Securities with Temporary Impairment	(in thousands): December 31, 2020 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses 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) December 31, 2019 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Agency obligations $ 3,601 (9) — — 3,601 (9) State and municipal obligations 7,675 (42) 2,093 (73) 9,768 (115) Corporate obligations 3,254 (6) — — 3,254 (6) $ 14,530 (57) 2,093 (73) 16,623 (130)
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 December 31, 2020 (in thousands): 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 December 31, 2019 Total Portfolio AAA AA A BBB Not Rated Total Agency obligations $ 6,599 — — — — 6,599 Mortgage-backed securities 118 — — — — 118 State and municipal obligations 49,316 330,322 56,317 1,119 — 437,074 Corporate obligations — 3,128 6,335 350 25 9,838 $ 56,033 333,450 62,652 1,469 25 453,629

Available for Sale Debt Secur_2

Available for Sale Debt Securities (Tables)	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Securities Available for Sale	Available for sale debt securities at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 Amortized cost Gross unrealized gains Gross unrealized losses Fair value 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 2019 Amortized cost Gross unrealized gains Gross unrealized losses Fair value Mortgage-backed securities $ 936,196 12,367 (1,133) 947,430 State and municipal obligations 3,907 172 — 4,079 Corporate obligations 25,032 393 (15) 25,410 $ 965,135 12,932 (1,148) 976,919
Securities Available for Sale by Contractual Maturity	The amortized cost and fair value of available for sale debt securities at December 31, 2020, 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. 2020 Amortized cost Fair value Due after one year through five years $ 5,676 5,791 Due after five years through ten years 38,046 38,780 Due after ten years 66,159 67,666 $ 109,881 112,237
Disclosure on Securities Available for Sale with Temporary Impairment	(in thousands): December 31, 2020 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses 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) December 31, 2019 Unrealized Losses Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses Mortgage-backed securities $ 136,270 (629) 46,819 (504) 183,089 (1,133) Corporate obligations 2,013 (15) — — 2,013 (15) $ 138,283 (644) 46,819 (504) 185,102 (1,148)

Loans Receivable and Allowanc_2

Loans Receivable and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Schedule of Summarized Loans Receivable	Loans receivable at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 2019 Mortgage loans: Residential $ 1,294,702 1,077,689 Commercial 3,458,666 2,578,393 Multi-family 1,484,515 1,225,551 Construction 541,939 429,812 Total mortgage loans 6,779,822 5,311,445 Commercial loans 2,567,470 1,634,759 Consumer loans 492,566 391,360 Total gross loans 9,839,858 7,337,564 PCI loans prior to CECL — 746 Premiums on purchased loans 1,566 2,474 Unearned discounts (12) (26) Net deferred fees (18,522) (7,873) Total loans $ 9,822,890 7,332,885
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). The December 31, 2020 balances include PCD loans, while the December 31, 2019 balances exclude PCI loans (in accordance with ASC 310, prior to the adoption of ASU 2016-13 on January 1, 2020): At December 31, 2020 30-59 Days 60-89 Days Non-accrual 90 days or more past due and accruing Total Past Due 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 At December 31, 2019 30-59 Days 60-89 Days Non-accrual 90 days or more past due and Total Past Due Current Total Loans Receivable Non-accrual loans with no related allowance Mortgage loans: Residential $ 5,905 2,579 8,543 — 17,027 1,060,662 1,077,689 2,989 Commercial — — 5,270 — 5,270 2,573,123 2,578,393 — Multi-family — — — — — 1,225,551 1,225,551 — Construction — — — — — 429,812 429,812 — Total mortgage loans 5,905 2,579 13,813 — 22,297 5,289,148 5,311,445 2,989 Commercial loans 2,383 95 25,160 — 27,638 1,607,121 1,634,759 3,238 Consumer loans 1,276 337 1,221 — 2,834 388,526 391,360 569 Total gross loans $ 9,564 3,011 40,194 — 52,769 7,284,795 7,337,564 6,796
Summary of Allowance for Loan Losses by Portfolio Segment and Impairment Classification	The activity in the allowance for credit losses for the years ended December 31, 2020, 2019 and 2018 is as follows (in thousands): Years Ended December 31, 2020 2019 2018 Balance at beginning of period $ 55,525 55,562 60,195 Provision charged to operations 29,712 13,100 23,700 Increase due to the initial adoption of CECL 7,920 — — Initial allowance related to PCD loans 13,586 — — Recoveries of loans previously charged off 2,636 1,895 1,685 Loans charged off (7,913) (15,032) (30,018) Balance at end of period $ 101,466 55,525 55,562 The activity in the allowance for credit losses by portfolio segment for the years ended December 31, 2020 and 2019 are as follows (in thousands): For the Year Ended December 31, 2020 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Balance at beginning of period $ 25,511 28,263 1,751 55,525 Provision charged to operations 18,945 10,199 568 29,712 Increase (decrease) due to the initial adoption of CECL 14,188 (9,974) 3,706 7,920 Initial allowance related to PCD loans 11,984 1,582 20 13,586 Recoveries of loans previously charged off 396 1,776 464 2,636 Loans charged off (2,717) (4,762) (434) (7,913) Balance at end of period $ 68,307 27,084 6,075 101,466 For the Year Ended December 31, 2019 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Balance at beginning of period $ 27,678 25,693 2,191 55,562 Provision charged to operations (2,323) 15,928 (505) 13,100 Recoveries of loans previously charged off 422 665 808 1,895 Loans charged off (266) (14,023) (743) (15,032) Balance at end of period $ 25,511 28,263 1,751 55,525 The allowance for credit losses is summarized by portfolio segment and impairment classification as follows (in thousands): At December 31, 2020 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 4,220 4,715 39 8,974 Collectively evaluated for impairment 64,087 22,369 6,036 92,492 Total allowance for credit losses $ 68,307 27,084 6,075 101,466 At December 31, 2019 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 1,580 3,462 25 5,067 Collectively evaluated for impairment 23,931 24,801 1,726 50,458 Total allowance for credit losses $ 25,511 28,263 1,751 55,525
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 related to 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 (dollars in thousands): 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): At December 31, 2020 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments 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 At December 31, 2019 Mortgage loans Commercial loans Consumer loans Total Portfolio Segments Individually evaluated for impairment $ 39,910 28,357 2,374 70,641 Collectively evaluated for impairment 5,271,535 1,606,402 388,986 7,266,923 Total gross loans $ 5,311,445 1,634,759 391,360 7,337,564
Schedule of Troubled Debt Restructuring	The following tables present the number of loans modified as TDRs during the years ended December 31, 2020 and 2019 and their balances immediately prior to the modification date and post-modification as of December 31, 2020 and 2019. Year Ended December 31, 2020 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment ($ in thousands) Mortgage loans: Residential 2 $ 434 360 Total mortgage loans 2 434 360 Commercial loans 4 2,715 2,646 Total restructured loans 6 $ 3,149 3,006 Year Ended December 31, 2019 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment ($ in thousands) Mortgage loans: Residential 3 $ 1,617 1,584 Commercial 1 $ 14,010 14,010 Total mortgage loans 4 15,627 15,594 Commercial loans 6 1,996 1,888 Consumer loans 4 421 402 Total restructured loans 14 $ 18,044 17,884
Schedule Of Troubled Debt Restructuring Subsequently Defaulted	The following table presents loans modified as TDRs within the previous 12 months from December 31, 2020 and 2019, and for which there was a payment default (90 days or more past due) at the quarter ended December 31, 2020 and 2019. December 31, 2020 December 31, 2019 Troubled Debt Restructurings Subsequently Defaulted Number of Loans Outstanding Number of Loans Outstanding Recorded Investment ($ in thousands) ($ in thousands) Mortgage loans: Residential — $ — 1 $ 578 Total mortgage loans — — 1 578 Total restructured loans — $ — 1 $ 578
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, net 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 at 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): At December 31, 2020 At December 31, 2019 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 $ 13,981 11,380 — 11,587 511 $ 13,478 10,739 — 10,910 533 Commercial 17,414 17,414 — 16,026 60 — — — — — Multi-family — — — — — — — — — — Construction — — — — — — — — — — Total 31,395 28,794 — 27,613 571 13,478 10,739 — 10,910 533 Commercial loans 15,895 14,009 — 12,791 46 3,927 3,696 — 4,015 17 Consumer loans 1,382 880 — 7 50 2,086 1,517 — 1,491 86 Total loans $ 48,672 43,683 — 40,411 667 $ 19,491 15,952 — 16,416 636 Loans with an allowance recorded Mortgage loans: Residential $ 7,950 7,506 806 7,604 307 $ 10,860 10,326 829 10,454 428 Commercial 14,993 12,483 3414 123 570 18,845 18,845 751 18,862 569 Multi-family — — — — — — — — — — Construction — — — — — — — — — — Total 22,943 19,989 4,220 7,727 877 29,705 29,171 1,580 29,316 997 Commercial loans 24,947 21,823 4,715 18,620 311 27,762 24,661 3462 27,527 444 Consumer loans 565 551 39 5 20 868 857 25 878 46 Total loans $ 48,455 42,363 8,974 26,352 1,208 $ 58,335 54,689 5,067 57,721 1,487 Total Mortgage loans: Residential $ 21,931 18,886 806 19,191 818 $ 24,338 21,065 829 21,364 961 Commercial 32,407 29,897 3,414 16,149 630 18,845 18,845 751 18,862 569 Multi-family — — — — — — — — — — Construction — — — — — — — — — — Total 54,338 48,783 4,220 35,340 1,448 43,183 39,910 1,580 40,226 1,530 Commercial loans 40,842 35,832 4,715 31,411 357 31,689 28,357 3462 31,542 461 Consumer loans 1,947 1,431 39 12 70 2,954 2,374 25 2,369 132 Total loans $ 97,127 86,046 8,974 66,763 1,875 $ 77,826 70,641 5,067 74,137 2,123
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 December 31, 2020 Total portfolio Residential Commercial mortgage Multi-family Construction Total Commercial Consumer Total Loans (1) 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 2020 Special mention $ — — — 1,991 1,991 1,474 — 3,465 Substandard 164 — — — 164 726 25 915 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 164 — — 1,991 2,155 2,200 25 4,380 Pass/Watch 271,858 653,276 293,188 93,124 1,311,446 785,665 62,716 2,159,827 Total gross loans $ 272,022 653,276 293,188 95,115 1,313,601 787,865 62,741 2,164,207 2019 Special mention $ — 30,313 682 14,508 45,503 7,080 3 52,586 Substandard 3,375 1,905 — — 5,280 9,320 365 14,965 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 3,375 32,218 682 14,508 50,783 16,400 368 67,551 Pass/Watch 152,117 612,694 180,316 236,021 1,181,148 275,410 69,703 1,526,261 Total gross loans $ 155,492 644,912 180,998 250,529 1,231,931 291,810 70,071 1,593,812 2018 Special mention $ — 33,446 20,125 7,877 61,448 6,544 276 68,268 Substandard 1,669 3,687 — 4,309 9,665 6,066 110 15,841 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 1,669 37,133 20,125 12,186 71,113 12,610 386 84,109 Pass/Watch 93,588 396,487 188,892 138,190 817,157 233,246 64,151 1,114,554 Total gross loans $ 95,257 433,620 209,017 150,376 888,270 245,856 64,537 1,198,663 2017 Special mention $ — 22,838 3,117 — 25,955 27,251 70 53,276 Substandard 2,221 21,095 — 615 23,931 16,159 — 40,090 Doubtful — — — — — — — — Loss — — — — — — — — Total criticized and classified 2,221 43,933 3,117 615 49,886 43,410 70 93,366 Pass/Watch 101,943 436,963 170,268 43,224 752,398 200,484 55,768 1,008,650 Total gross loans $ 104,164 480,896 173,385 43,839 802,284 243,894 55,838 1,102,016 2016 and prior Special mention $ 2,882 38,034 5,857 — 46,773 114,731 1,518 163,022 Substandard 19,222 71,626 1,568 — 92,416 94,821 6,246 193,483 Doubtful — — — — — 52 — 52 Loss — — — — — — — — Total criticized and classified 22,104 109,660 7,425 — 139,189 209,604 7,764 356,557 Pass/Watch 667,767 1,245,962 627,927 2,080 2,543,736 998,045 239,379 3,781,160 Total gross loans $ 689,871 1,355,622 635,352 2,080 2,682,925 1,207,649 247,143 4,137,717 At December 31, 2019 Residential Commercial mortgage Multi-family Construction Total Commercial Consumer Total loans Special mention $ 2,402 46,758 — — 49,160 79,248 286 128,694 Substandard 10,204 13,458 — 6,181 29,843 57,015 1,668 88,526 Doubtful — — — — — 836 — 836 Loss — — — — — — — — Total criticized and classified 12,606 60,216 — 6,181 79,003 137,099 1,954 218,056 Pass/Watch 1,065,083 2,518,177 1,225,551 423,631 5,232,442 1,497,660 389,406 7,119,508 Total $ 1,077,689 2,578,393 1,225,551 429,812 5,311,445 1,634,759 391,360 7,337,564 (1) Contained within criticized and classified loans at December 31, 2020 are loans that were granted payment deferrals related to COVID-19 totaling $207.4 million.

Banking Premises and Equipment

Banking Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Banking Premises and Equipment	A summary of banking premises and equipment at December 31, 2020 and 2019 is as follows (in thousands): 2020 2019 Land $ 13,631 12,440 Banking premises 72,362 59,708 Furniture, fixtures and equipment 52,128 45,660 Leasehold improvements 37,756 35,749 Construction in progress 9,669 3,270 185,546 156,827 Less accumulated depreciation and amortization 109,600 101,617 Total banking premises and equipment $ 75,946 55,210

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible assets at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 2019 Goodwill $ 443,001 420,562 Core deposit premiums 1,112 1,753 Customer relationship and other intangibles 21,466 14,142 Mortgage servicing rights 633 562 Total intangible assets $ 466,212 437,019
Amortization Expense of Intangible Assets	Amortization expense of intangible assets for the years ended December 31, 2020, 2019 and 2018 is as follows (in thousands): 2020 2019 2018 Core deposit premiums $ 824 786 931 Customer relationship and other intangibles 2,457 1,869 1,073 Mortgage servicing rights 144 85 123 Total amortization expense of intangible assets $ 3,425 2,740 2,127
Scheduled Amortization of Core Deposit Intangibles	Scheduled amortization of core deposit premiums and customer relationship and other intangibles for each of the next five years is as follows (in thousands): Year ended December 31, Scheduled Amortization 2021 $ 3,513 2022 3,143 2023 2,771 2024 2,432 2025 2,206

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2020
Other Liabilities [Abstract]
Schedule of Deposits	Deposits at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 Weighted average interest rate 2019 Weighted average interest rate Savings deposits $ 1,348,147 0.11 % $ 983,714 0.14 % Money market accounts 2,245,412 0.45 1,738,202 0.79 NOW accounts 2,808,637 0.42 2,092,413 0.79 Non-interest bearing deposits 2,341,459 — 1,554,253 — Certificates of deposit 1,094,174 0.89 734,027 1.72 Total deposits $ 9,837,829 $ 7,102,609
Scheduled Maturities of Certificates of Deposit	Scheduled maturities of certificates of deposit accounts at December 31, 2020 and 2019 are as follows (in thousands): 2020 2019 Within one year $ 886,018 606,870 One to three years 153,114 81,987 Three to five years 54,544 44,243 Five years and thereafter 498 927 $ 1,094,174 734,027
Interest Expense on Deposits	Interest expense on deposits for the years ended December 31, 2020, 2019 and 2018 is summarized as follows (in thousands): Years ended December 31, 2020 2019 2018 Savings deposits $ 1,689 1,681 1,923 NOW and money market accounts 22,762 29,542 20,450 Certificates of deposits 9,138 14,271 8,320 $ 33,589 45,494 30,693

Borrowed Funds (Tables)

Borrowed Funds (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule of Borrowed Funds	Borrowed funds at December 31, 2020 and 2019 are summarized as follows (in thousands): 2020 2019 Securities sold under repurchase agreements $ 99,936 60,737 FHLB line of credit 25,000 298,000 FHLB advances 1,051,036 766,409 Total borrowed funds $ 1,175,972 1,125,146
Scheduled Maturities of FHLB Advances	Scheduled maturities of FHLB advances at December 31, 2020 are as follows (in thousands): 2020 Due in one year or less $ 754,481 Due after one year through two years 168,686 Due after two years through three years 58,650 Due after three years through four years 19,219 Thereafter — Total FHLB advances $ 1,051,036
Scheduled Maturities of Securities Sold Under Repurchase Agreements	Scheduled maturities of securities sold under repurchase agreements at December 31, 2020 are as follows (in thousands): 2020 Due in one year or less $ 99,936 Due after one year through two years — Due after two years through three years — Due after three years through four years — Due after four years through five years — Thereafter — Total securities sold under repurchase agreements $ 99,936
Debt Disclosure by Year	The following tables set forth certain information as to borrowed funds for the years ended December 31, 2020 and 2019 (in thousands): Maximum balance Average balance Weighted average interest rate 2020 Securities sold under repurchase agreements $ 115,233 86,194 0.28 % FHLB line of credit 422,000 97,853 1.09 FHLB advances 1,177,083 1,045,282 1.49 2019 Securities sold under repurchase agreements $ 96,914 71,234 .49 % FHLB line of credit 451,000 325,481 2.40 FHLB advances 1,190,006 939,916 2.11

Benefit Plans (Tables)

Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Pension Plan and Post-Retirement Healthcare and Life Insurance Plans	The following table sets forth information regarding the pension plan and post-retirement healthcare and life insurance plans (in thousands): Pension Post-retirement 2020 2019 2018 2020 2019 2018 Change in benefit obligation: Benefit obligation at beginning of year $ 33,058 28,878 31,970 23,323 20,028 22,757 Service cost — — — 78 80 115 Interest cost 1,000 1,198 1,094 712 837 786 Actuarial loss 381 63 — (169) — 18 Benefits paid (1,630) (1,493) (1,401) (627) (600) (590) Change in actuarial assumptions 2,361 4,412 (2,785) (4,512) 2,978 (3,058) Benefit obligation at end of year $ 35,170 33,058 28,878 18,805 23,323 20,028 Change in plan assets: Fair value of plan assets at beginning of year $ 49,932 43,449 46,870 — — — Actual return on plan assets 6,315 7,976 (2,020) — — — Employer contributions — — — 627 600 590 Benefits paid (1,630) (1,493) (1,401) (627) (600) (590) Fair value of plan assets at end of year 54,617 49,932 43,449 — — — Funded status at end of year $ 19,447 16,874 14,571 (18,805) (23,323) (20,028)
Components of Accumulated Other Comprehensive Loss (Gain) related to Pension Plan and Other Post-retirement Benefits	The components of accumulated other comprehensive loss (gain) related to the pension plan and other post-retirement benefits, on a pre-tax basis, at December 31, 2020 and 2019 are summarized in the following table (in thousands): Pension Post-retirement 2020 2019 2020 2019 Unrecognized prior service cost $ — — — — Unrecognized net actuarial loss (gain) 9,026 10,346 (8,055) (3,621) Total accumulated other comprehensive loss (gain) $ 9,026 10,346 (8,055) (3,621)
Net Periodic Benefit Cost (Increase)	Net periodic (benefit) increase cost for the years ending December 31, 2020, 2019 and 2018, included the following components (in thousands): Pension Post-retirement 2020 2019 2018 2020 2019 2018 Service cost $ — — — 78 80 115 Interest cost 1,000 1,198 1,094 712 837 786 Return on plan assets (2,949) (2,562) (2,769) — — — Amortization of: Net loss (gain) 696 1,015 795 (248) (825) (396) Unrecognized prior service cost — — — — — — Net periodic (benefit) increase cost $ (1,253) (349) (880) 542 92 505
Weighted Average Actuarial Assumptions Used	The weighted average actuarial assumptions used in the plan determinations at December 31, 2020, 2019 and 2018 were as follows: Pension Post-retirement 2020 2019 2018 2020 2019 2018 Discount rate 2.30 % 3.10 % 4.25 % 2.30 % 3.10 % 4.25 % Rate of compensation increase — — — — — — Expected return on plan assets 6.00 6.00 6.00 — — — Medical and life insurance benefits cost rate of increase — — — 6.00 6.00 6.00
Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rate	A 1% change in the assumed health care cost trend rate would have had the following effects on post-retirement benefits at December 31, 2020 (in thousands): 1% increase 1% decrease Effect on total service cost and interest cost $ 140 110 Effect on post-retirement benefits obligation $ 3,900 3,100
Estimated Future Benefit Payments	Estimated future benefit payments, which reflect expected future service, as appropriate for the next five years, are as follows (in thousands): Pension Post-retirement 2021 $ 1,721 780 2022 1,740 789 2023 1,774 821 2024 1,779 822 2025 1,772 850
Weighted-Average Asset Allocation of Pension Plan Assets	The weighted-average asset allocation of pension plan assets at December 31, 2020 and 2019 were as follows: Asset Category 2020 2019 Domestic equities 39 % 37 % Foreign equities 12 % 11 % Fixed income 47 % 50 % Real estate 2 % 2 % Cash — % — % Total 100 % 100 %
Target Allocation of Assets and Acceptable Ranges	The target allocation of assets and acceptable ranges around the targets are as follows: Asset Category Target Allowable Range Domestic equities 37 % 30-41% Foreign equities 11 % 5-13% Fixed income 50 % 40-65% Real estate 2 % 0-4% Cash 0 % 0% Total 100 %
Assets Measured at Fair Value on Recurring Basis	The following tables present the assets that are measured at fair value on a recurring basis by level within the U.S. GAAP fair value hierarchy as reported on the statements of net assets available for Plan benefits at December 31, 2020 and 2019, respectively. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Fair value measurements at December 31, 2020 (in thousands) Total (Level 1) (Level 2) (Level 3) Group annuity contracts $ 64 — 64 — Mutual funds: Fixed income 25,418 25,418 — — International equity 6,581 6,581 — — Large U.S. equity 1,677 1,677 — — Small/Mid U.S. equity 1,225 1,225 — — Total mutual funds 34,901 34,901 — — Pooled separate accounts 19,652 — 19,652 — Total Plan assets $ 54,617 34,901 19,716 — Fair value measurements at December 31, 2019 (in thousands) Total (Level 1) (Level 2) (Level 3) Group annuity contracts $ 81 — 81 — Mutual funds: Fixed income 16,609 16,609 — — International equity 5,535 5,535 — — Large U.S. equity 1,496 1,496 — — Small/Mid U.S. equity 996 996 — — Total mutual funds 24,636 24,636 — — Pooled separate accounts 25,215 — 25,215 — Total Plan assets $ 49,932 24,636 25,296 —
Status of Unvested Stock Awards	A summary status of the granted but unvested stock awards as of December 31, and changes during the year, is presented below: Restricted Stock Awards 2020 2019 2018 Outstanding at beginning of year 668,826 651,099 660,783 Granted 429,122 291,034 296,411 Forfeited (59,938) (46,914) (56,296) Vested (252,829) (226,393) (249,799) Outstanding at the end of year 785,181 668,826 651,099
Status of Unexercised Stock Options	A summary of the status of the granted but unexercised stock options as of December 31, 2020, 2019 and 2018, and changes during the year is presented below: 2020 2019 2018 Number of stock options Weighted average exercise price Number of stock options Weighted average exercise price Number of stock options Weighted average exercise price Outstanding at beginning of year 499,201 $ 19.32 470,979 $ 18.36 507,656 $ 16.84 Granted 107,240 20.62 41,685 27.25 43,124 25.58 Exercised — — (13,463) 10.35 (79,801) 12.61 Forfeited (10,000) 14.68 — — — — Expired — — — — — — Outstanding at the end of year 596,441 $ 17.96 499,201 $ 19.32 470,979 $ 18.36
Stock Options Outstanding	The following table summarizes information about stock options outstanding at December 31, 2020: Options Outstanding Options Exercisable Range of exercise prices Number of options outstanding Average remaining contractual life Weighted average exercise price Number of options exercisable Weighted average exercise price $14.50-15.23 138,475 1.1 $ 14.89 138,475 $ 14.89 $16.38-27.25 457,966 6.1 $ 20.83 279,901 $ 19.50
Weighted Average Assumptions of Fair Value Option Grants	The fair value of the option grants was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions: For the year ended December 31, 2020 2019 2018 Expected dividend yield 4.46 % 3.38 % 3.13 % Expected volatility 20.33 % 22.01 % 20.65 % Risk-free interest rate 0.75 % 2.53 % 2.65 % Expected option life 8 years 8 years 8 years

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Current and Deferred Amounts of Income Tax Expense (Benefit)	The current and deferred amounts of income tax expense (benefit) for the years ended December 31, 2020, 2019 and 2018 are as follows (in thousands): Years ended December 31, 2020 2019 2018 Current: Federal $ 27,143 22,427 41,578 State 11,389 10,354 2,493 Total current 38,532 32,781 44,071 Deferred: Federal (5,908) 1,650 (17,302) State (2,021) 24 (1,239) Total deferred (7,929) 1,674 (18,541) $ 30,603 34,455 25,530
Reconciliation between Amount Reported and Amount Computed for Income Tax Expense and Income Tax Rate	A reconciliation between the amount of reported total income tax expense and the amount computed by multiplying the applicable statutory income tax rate is as follows (in thousands): Years ended December 31, 2020 2019 2018 Tax expense at statutory rates $ 26,786 30,889 30,223 Increase (decrease) in taxes resulting from: State tax, net of federal income tax benefit 7,400 8,197 1,002 Tax-exempt interest income (2,609) (3,082) (2,839) Bank-owned life insurance (1,363) (1,322) (1,158) Other, net 389 (227) (1,698) $ 30,603 34,455 25,530
Deferred Tax Assets and Liabilities	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2020 and 2019 are as follows (in thousands): 2020 2019 Deferred tax assets: Allowance for credit losses on loans $ 26,156 14,313 Allowance for credit loss OBS 1,295 — Post-retirement benefit 6,924 6,946 Deferred compensation 839 1,175 Contingent Consideration 714 — Purchase accounting adjustments 3,099 1,629 Depreciation 331 750 SERP 733 688 ESOP 1,377 1,606 Stock-based compensation 4,481 4,747 Payroll Protection Program fees 2,268 — Non-accrual interest 225 417 Federal Net Operating Loss ("NOL") 280 321 Net unrealized loss on hedging activities 1,717 — Pension liability adjustments 376 1,821 Other 925 1,223 Total gross deferred tax assets 51,740 35,636 Deferred tax liabilities: Pension expense 7,340 7,017 Deferred loan costs 4,532 5,064 Investment securities, principally due to accretion of discounts 79 70 Intangibles 1,723 1,393 Originated mortgage servicing rights 160 140 Unrealized gain on available for sale debt securities 7,802 3,038 Net unrealized gain on hedging activities — 114 Total gross deferred tax liabilities 21,636 16,836 Net deferred tax asset $ 30,104 18,800

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	12 Months Ended
	Dec. 31, 2020
Regulatory Assets and Liabilities Disclosure [Abstract]
Actual Capital Amounts and Ratios	The following table shows the Company’s actual capital amounts and ratios as of December 31, 2020 and 2019, compared to the FRB minimum capital adequacy requirements and the FRB requirements for classification as a well-capitalized institution (dollars in thousands). Actual capital FRB minimum capital FRB minimum capital adequacy requirements with capital conservation buffer To be well-capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 Tier 1 leverage capital $ 1,157,505 9.30 % $ 497,794 4.00 % $ 497,794 4.00 % $ 622,243 5.00 % Common equity Tier 1 risk-based capital 1,144,618 10.46 492,359 4.50 765,892 7.00 711,185 6.50 Tier 1 risk-based capital 1,157,505 10.58 656,478 6.00 930,011 8.50 875,305 8.00 Total risk-based capital 1,306,494 11.94 875,305 8.00 1,148,837 10.50 1,094,131 10.00 Actual capital FRB minimum capital adequacy requirements FRB minimum capital To be well-capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of December 31, 2019 Tier 1 leverage capital $ 973,214 10.34 % $ 376,484 4.00 % $ 376,484 4.00 % $ 470,605 5.00 % Common equity Tier 1 risk-based capital 973,214 12.74 343,756 4.50 534,732 7.00 496,537 6.50 Tier 1 risk-based capital 973,214 12.74 458,342 6.00 649,317 8.50 611,122 8.00 Total risk-based capital 1,028,879 13.47 611,122 8.00 802,098 10.50 763,903 10.00
FDIC Minimum Capital Adequacy Requirements	The following table shows the Bank’s actual capital amounts and ratios as of December 31, 2020 and 2019, compared to the FDIC minimum capital adequacy requirements and the FDIC requirements for classification as a well-capitalized institution (dollars in thousands). Actual capital FDIC minimum capital FDIC minimum capital adequacy requirements with capital conservation buffer To be well-capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 Tier 1 leverage capital $ 1,086,589 8.75 % $ 496,908 4.00 % $ 496,908 4.00 % $ 621,135 5.00 % Common equity Tier 1 risk-based capital 1,086,589 9.96 491,135 4.50 763,988 7.00 709,417 6.50 Tier 1 risk-based capital 1,086,589 9.96 654,847 6.00 927,700 8.50 873,129 8.00 Total risk-based capital 1,223,469 11.21 873,129 8.00 1,145,982 10.50 1,091,411 10.00 Actual capital FDIC minimum capital adequacy requirements FRB minimum capital To be well-capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of December 31, 2019 Tier 1 leverage capital $ 923,471 9.81 % $ 376,449 4.00 % $ 376,449 4.00 % $ 470,562 5.00 % Common equity Tier 1 risk-based capital 923,471 12.09 343,716 4.50 534,670 7.00 496,479 6.50 Tier 1 risk-based capital 923,471 12.09 458,288 6.00 649,242 8.50 611,051 8.00 Total risk-based capital 979,136 12.82 611,051 8.00 802,004 10.50 763,814 10.00

Allowance for Credit Losses o_2

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures (Tables)	12 Months Ended
	Dec. 31, 2020
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 related to 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 (dollars in thousands): 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)	12 Months Ended
	Dec. 31, 2020
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 value as of December 31, 2020 and 2019, by level within the fair value hierarchy (in thousands). 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 Fair Value Measurements at Reporting Date Using: December 31, 2019 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: Mortgage-backed securities $ 947,430 — 947,430 — State and municipal obligations 4,079 — 4,079 — Corporate obligations 25,410 — 25,410 — Total available for sale debt securities $ 976,919 — 976,919 — Equity Securities 825 825 — — Derivative assets 39,305 — 39,305 — $ 1,017,049 825 1,016,224 — Derivative liabilities $ 39,356 — 39,356 — Measured on a non-recurring basis: Loans measured for impairment based on the fair value of the underlying collateral $ 20,403 — — 20,403 Foreclosed assets 2,715 — — 2,715 $ 23,118 — — 23,118
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 December 31, 2020 and December 31, 2019. Fair values are presented by level within the fair value hierarchy. 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: 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, net of allowance for credit losses: Agency obligations $ 7,600 7,601 7,601 — — Mortgage-backed securities 62 64 — 64 — State and municipal obligations 433,589 454,973 — 454,973 — Corporate obligations 9,714 9,813 — 9,813 — Total held to maturity debt securities, net of allowance for credit losses $ 450,965 472,451 7,601 464,850 — 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 Debentures 25,135 24,375 — 24,375 — Derivative liabilities 109,148 109,148 — 109,148 — Fair Value Measurements at December 31, 2019 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 $ 186,748 186,748 186,748 — — Available for sale debt securities: Mortgage-backed securities 947,430 947,430 — 947,430 — State and municipal obligations 4,079 4,079 — 4,079 — Corporate obligations 25,410 25,410 — 25,410 — Total available for sale debt securities $ 976,919 976,919 — 976,919 — Held to maturity debt securities: Agency obligations $ 6,599 6,601 6,601 — — Mortgage-backed securities 118 122 — 122 — State and municipal obligations 437,074 451,353 — 451,353 — Corporate obligations 9,838 9,890 — 9,890 — Total held to maturity debt securities $ 453,629 467,966 6,601 461,365 — FHLBNY stock 57,298 57,298 57,298 — — Equity Securities 825 825 825 — — Loans, net of allowance for credit losses 7,277,360 7,296,744 — — 7,296,744 Derivative assets 39,305 39,305 — 39,305 — Financial liabilities: Deposits other than certificates of deposits $ 6,368,582 6,368,582 6,368,582 — — Certificates of deposit 734,027 734,047 — 734,047 — Total deposits $ 7,102,609 7,102,629 6,368,582 734,047 — Borrowings 1,125,146 1,127,569 — 1,127,569 — Derivative liabilities 39,356 39,356 — 39,356 —

Selected Quarterly Financial _2

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data (Unaudited)	The following tables are a summary of certain quarterly financial data for the years ended December 31, 2020 and 2019. 2020 Quarters Ended March 31 June 30 September 30 December 31 (In thousands, except per share data) Interest income $ 88,169 81,537 93,453 100,150 Interest expense 16,148 11,709 11,468 11,412 Net interest income 72,021 69,828 81,985 88,738 Provision for credit losses 14,717 10,900 6,400 (2,298) Net interest income after provision for loan losses 57,304 58,928 75,585 91,036 Non-interest income 16,991 14,365 20,626 20,448 Non-interest expense 54,107 55,267 59,783 58,571 Income before income tax expense 20,188 18,026 36,428 52,913 Income tax expense 5,257 3,715 9,285 12,346 Net income $ 14,931 14,311 27,143 40,567 Basic earnings per share $ 0.23 0.22 0.37 0.53 Diluted earnings per share 0.23 0.22 0.37 0.53 2019 Quarters Ended March 31 June 30 September 30 December 31 (In thousands, except per share data) Interest income $ 92,411 95,648 93,026 90,385 Interest expense 17,404 19,093 19,498 17,502 Net interest income 75,007 76,555 73,528 72,883 Provision for credit losses 200 9,500 500 2,900 Net interest income after provision for loan losses 74,807 67,055 73,028 69,983 Non-interest income 12,188 15,834 18,047 17,725 Non-interest expense 48,416 49,694 49,738 53,731 Income before income tax expense 38,579 33,195 41,337 33,977 Income tax expense 7,689 8,802 9,938 8,026 Net income $ 30,890 24,393 31,399 25,951 Basic earnings per share $ 0.48 0.38 0.49 0.40 Diluted earnings per share 0.48 0.38 0.49 0.40

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Basic and Diluted Earnings (Loss) Per Share	The following is a reconciliation of the outstanding shares used in the basic and diluted earnings per share calculations. For the Year Ended December 31, 2020 2019 2018 (In thousands, except per share data) Net income $ 96,951 112,633 118,387 Basic weighted average common shares outstanding 69,548,499 64,604,224 64,942,886 Plus: Dilutive shares 77,459 130,367 160,211 Diluted weighted average common shares outstanding 69,625,958 64,734,591 65,103,097 Earnings per share: Basic $ 1.39 1.74 1.82 Diluted $ 1.39 1.74 1.82

Parent-only Financial Informa_2

Parent-only Financial Information (Tables)	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Condensed Statements of Financial Condition	The condensed financial statements of Provident Financial Services, Inc. (parent company only) are presented below: Condensed Statements of Financial Condition (Dollars in Thousands) December 31, 2020 December 31, 2019 Assets Cash and due from banks $ 10,634 29,723 Available for sale debt securities, at fair value 971 825 Investment in subsidiary 1,561,769 1,364,097 ESOP loan 25,555 31,113 Other assets (622) 37 Total assets $ 1,640,654 1,425,795 Liabilities and Stockholders’ Equity Due to subsidiary—SAP $ — 11,741 Other liabilities (4,279) 214 Subordinated Debentures 25,135 — Total stockholders’ equity 1,619,798 1,413,840 Total liabilities and stockholders’ equity $ 1,640,654 1,425,795
Condensed Statements of Operations	Condensed Statements of Operations (Dollars in Thousands) For the Years Ended December 31, 2020 2019 2018 Dividends from subsidiary $ 65,823 72,809 53,604 Interest income 1,245 1,470 1,657 Investment gain 147 162 2294 Total income 67,215 74,441 57,555 Subordinated debentures 512 — — Non-interest expense 1,196 1,192 1,049 Total expense 1,708 1,192 1,049 Income before income tax expense 65,507 73,249 56,506 Income tax expense — 127 692 Income before undistributed net income of subsidiary 65,507 73,122 55,814 Earnings in excess of dividends (equity in undistributed net income) of subsidiary 31,444 39,511 62,573 Net income $ 96,951 112,633 118,387
Condensed Statements of Cash Flows	Condensed Statements of Cash Flows (Dollars in Thousands) For the Years Ended December 31, 2020 2019 2018 Cash flows from operating activities: Net income $ 96,951 112,633 118,387 Adjustments to reconcile net income to net cash provided by operating activities Earnings in excess of dividends (equity in undistributed net income) of subsidiary (31,444) (39,511) (62,573) ESOP allocation 2,401 4,533 4,516 SAP allocation 5,433 6,671 6,046 Stock option allocation 190 181 190 Increase in due to subsidiary—SAP 54,088 3,745 3,577 Decrease (increase) in other assets (138,360) 21,285 (18,598) (Decrease) increase in other liabilities (4,493) (734) 396 Net cash (used in) provided by operating activities (15,234) 108,803 51,941 Cash flows from investing activities: Cash received, net of cash consideration paid for acquisition 78,089 — — Net decrease in ESOP loan 5,558 5,643 4,663 Net cash provided by investing activities 83,647 5,643 4,663 Cash flows from financing activities: Purchases of treasury stock (21,161) (19,867) (13,172) Purchase of employee restricted shares to fund statutory tax withholding (969) (1,985) (1,896) Cash dividends paid (65,823) (72,809) (53,604) Shares issued dividend reinvestment plan 451 2,230 1,709 Stock options exercised — 139 1,007 Net cash used in financing activities (87,502) (92,292) (65,956) Net increase (decrease) in cash and cash equivalents (19,089) 22,154 (9,352) Cash and cash equivalents at beginning of period 29,723 7,569 16,921 Cash and cash equivalents at end of period $ 10,634 29,723 7,569

Other Comprehensive Income (L_2

Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Components of Other Comprehensive Loss	The following table presents the components of other comprehensive income (loss) both gross and net of tax, for the years ended December 31, 2020, 2019 and 2018 (in thousands): For the Years Ended December 31, 2020 2019 2018 Before Tax Tax Effect After Tax Before Tax Tax Effect After Tax Before Tax Tax Effect After Tax Components of Other Comprehensive Income ( Loss): Unrealized losses on available for sale debt securities: Net gains (losses) arising during the period $ 20,134 (5,190) 14,944 24,987 (6,636) 18,351 (8,425) 2,296 (6,129) Reclassification adjustment for gains included in net income — — — — — — — — — Total 20,134 (5,190) 14,944 24,987 (6,636) 18,351 (8,425) 2,296 (6,129) Unrealized (losses) gains on derivatives (cash flow hedges) (7,099) 1,830 (5,269) (780) 201 (579) 304 (83) 221 Amortization related to post-retirement obligations 5,604 (1,445) 4,159 (2,176) 561 (1,615) 1,678 (457) 1,221 Total other comprehensive income (loss) $ 18,639 (4,805) 13,834 22,031 (5,874) 16,157 (6,443) 1,756 (4,687)
Changes in Accumulated Other Comprehensive Income by Component, net of tax	The following table presents the changes in the components of accumulated other comprehensive loss, net of tax, for the years ended December 31, 2020 and 2019 (in thousands): Changes in Accumulated Other Comprehensive Income by Component, net of tax For the Years Ended December 31, 2020 2019 Unrealized Gains on Available for Sale Debt Securities Post-Retirement Unrealized Gains (Losses) on Derivatives (cash flow hedges) Accumulated Unrealized Gains (Losses) on Available for Sale Debt Securities Post-Retirement Unrealized Gains (Losses) on Derivatives (cash flow hedges) Accumulated Balance at the beginning of the period $ 8,746 (5,240) 315 3,821 (9,605) (3,625) 894 (12,336) Current period change in other comprehensive income (loss) 14,944 4,159 (5,269) 13,834 18,351 (1,615) (579) 16,157 Balance at the end of the period $ 23,690 (1,081) (4,954) 17,655 8,746 (5,240) 315 3,821
Reclassification Out of Accumulated Other Comprehensive Income	The following table summarizes the reclassifications out of accumulated other comprehensive (loss) income for the years ended December 31, 2020, 2019 and 2018 (in thousands): Reclassifications Out of Accumulated Other Comprehensive Amount reclassified from AOCI for the years ended December 31, Affected line item in the Consolidated 2020 2019 2018 Details of AOCI: Available for sale debt securities: Realized net gains on the sale of securities available for sale $ — — — Net gain on securities transactions — — — Income tax expense — — — Net of tax Post-retirement obligations: Amortization of actuarial losses 448 189 399 Compensation and employee benefits (1) (115) (49) (109) Income tax expense 333 140 290 Net of tax Total reclassifications $ 333 140 290 Net of tax (1) This item is included in the computation of net periodic benefit cost. See Note 13. Benefit Plans

Derivative and Hedging Activi_2

Derivative and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statements of Financial Condition as of December 31, 2020 and 2019 (in thousands): At December 31, 2020 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Value Consolidated Statements of Financial Condition Fair Value Derivatives not designated as hedging instruments: Interest rate products Other assets $ 107,652 Other liabilities $ 109,148 Credit contracts Other assets 97 Other liabilities — Total derivatives not designated as hedging instruments $ 107,749 $ 109,148 Derivatives designated as hedging instruments: Interest rate products Other assets $ (6,671) Other liabilities $ — Total derivatives designated as hedging instruments $ (6,671) $ — At December 31, 2019 Asset Derivatives Liability Derivatives Consolidated Statements of Financial Condition Fair Value Consolidated Statements of Financial Condition Fair Value Derivatives not designated as hedging instruments: Interest rate products Other assets $ 38,830 Other liabilities $ 39,356 Credit contracts Other assets 47 Other liabilities — Total derivatives not designated as hedging instruments $ 38,877 $ 39,356 Derivatives designated as hedging instruments: Interest rate products Other assets $ 428 Other liabilities $ — Total derivatives designated as hedging instruments $ 428 $ —
Derivative Instruments, Gain (Loss)	The table below presents the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income for the years ended December 31, 2020, 2019 and 2018 (in thousands). Gain (loss) recognized in Income on derivatives For the Year Ended December 31, Consolidated Statements of Income 2020 2019 2018 Derivatives not designated as a hedging instruments: Interest rate products Other income $ (950) (64) (414) Credit contracts Other income 30 (53) 63 Total derivatives not designated as hedging instruments $ (920) (117) (351) Derivatives designated as a hedging instruments: Loss (gain) recognized in Expense on derivatives Interest rate products Interest expense $ 1,741 (624) 312 Total derivatives designated as a hedging instruments $ 1,741 (624) 312

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2020
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 years ended December 31, 2020, 2019 and 2018: December 31, (in-thousands) 2020 2019 2018 Non-interest income In-scope of Topic 606: Wealth management fees $ 25,733 22,503 17,957 Insurance agency income 3,513 — — Banking service charges and other fees: Service charges on deposit accounts 10,312 13,117 13,330 Debit card and ATM fees 5,974 5,734 5,997 Total banking service charges and other fees 16,286 18,851 19,327 Total in-scope non-interest income 45,532 41,354 37,284 Total out-of-scope non-interest income 26,899 22,440 21,392 Total non-interest income $ 72,431 63,794 58,676

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
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 December 31, 2020 (in thousands): Classification December 31, 2020 Lease Right-of-Use Assets: Operating lease right-of-use assets Other assets $ 41,142 Lease Liabilities: Operating lease liabilities Other liabilities $ 42,042
Schedule of Supplemental Cash Flow and Other Information Related to Leases	The following table represents 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): Year ended December 31, 2020 Year ended December 31, 2019 Lease Costs Operating lease cost $ 9,012 8,433 Variable lease cost 2,756 2,765 Total Lease Cost $ 11,768 11,198 Cash paid for amounts included in the measurement of lease liabilities (in thousands): Year ended December 31, 2020 Year ended December 31, 2019 Operating cash flows from operating leases $ 8,863 8,304
Schedule of Future Minimum Payments	Future minimum payments for operating leases with initial or remaining terms of one year or more as of December 31, 2020 were as follows (in thousands): Operating Leases Years ended: 2020 $ 7,165 2021 6,227 2022 5,712 2023 5,309 2024 4,722 Thereafter 20,001 Total future minimum lease payments 49,136 Amounts representing interest 7,094 Present value of net future minimum lease payments $ 42,042

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	Jan. 01, 2020	Dec. 31, 2002	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Cash and cash equivalents maturity period, days			90 days
Allowance for credit losses			$ 101,466	$ 55,525	$ 55,562	$ 60,195
Credit loss expense for off-balance sheet credit exposures			29,700
Retained earnings			718,090	695,273
Individually evaluated for impairment			$ 8,974	$ 5,067
Percentage of participants matched contribution			6.00%
Dividends paid on unallocated ESOP shares over period			30 years
Shares held by the DDFP			180,897
Dividends paid on unallocated ESOP shares over period		10 years
Cumulative Effect, Period of Adoption, Adjustment
Property, Plant and Equipment [Line Items]
Allowance for credit losses	$ 7,920
Retained earnings	8,300
Accounting Standards Update 2016-13
Property, Plant and Equipment [Line Items]
Allowance for credit losses	7,900
Credit loss expense for off-balance sheet credit exposures	3,200
Retained earnings	8,300
Accounting Standards Update 2016-13 | Construction
Property, Plant and Equipment [Line Items]
Allowance for credit losses	$ 1,300
Depositor Relationships
Property, Plant and Equipment [Line Items]
Amortized accelerated basis period			8 years 9 months 18 days
Estimated useful life of core deposits			10 years
Minimum
Property, Plant and Equipment [Line Items]
Individual loans evaluated for impairment, minimum balance			$ 1,000
Beacon Trust | Customer Relationships
Property, Plant and Equipment [Line Items]
Amortized accelerated basis period			12 years
The MDE Group | Customer Relationships
Property, Plant and Equipment [Line Items]
Amortized accelerated basis period			10 years 4 months 24 days
Tirschwell & Loewy, Inc. | Customer Relationships
Property, Plant and Equipment [Line Items]
Amortized accelerated basis period			10 years
SB One Bancorp
Property, Plant and Equipment [Line Items]
Allowance for credit losses			$ 13,600
SB One Bancorp | Customer Relationships
Property, Plant and Equipment [Line Items]
Amortized accelerated basis period			13 years

Stockholders_ Equity (Details)

Stockholders’ Equity (Details) - USD ($) $ / shares in Units, $ in Millions	Jan. 15, 2003	Dec. 31, 2020	Dec. 31, 2019
Equity [Abstract]
Common stock, shares issued (in shares)	59,600,000	83,209,012	83,209,283
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common stock, per share (in dollars per share)	$ 10
Proceeds from issuance of common stock	$ 567.2
Cash donated	$ 4.8
Number of shares donated	1,920,000
Value of shares donated	$ 24
Liquidation account balance		$ 8.8

Business Combinations - SB One

Business Combinations - SB One Bancorp Acquisition (Details) $ in Thousands	Jul. 31, 2020USD ($)numberOfBankingOfficesshares	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Apr. 01, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Business Acquisition [Line Items]
Gross amortized cost basis at July 31, 2020				$ 822,400
Excess of consideration paid recorded as goodwill	$ 22,400
Fair value premium		$ 8,400
Less allowance for credit losses		101,466	$ 55,525		$ 55,562	$ 60,195
Subordinated debentures		25,135	$ 0
SB One Bancorp
Business Acquisition [Line Items]
Assets added during acquisition	2,195,708
Gross amortized cost basis at July 31, 2020	$ 315,784
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
Merger-related expenses		6,300
Fair value premium		133
Less 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]
Gross amortized cost basis at July 31, 2020	1,770,000
SB One Bancorp | PCD Loans
Business Acquisition [Line Items]
Gross amortized cost basis at July 31, 2020	294,200
SB One Bancorp | Deposits
Business Acquisition [Line Items]
Gross amortized cost basis at July 31, 2020	$ 1,760,000

Business Combinations - Estimat

Business Combinations - Estimated Fair Values of the Assets Acquired and the Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jul. 31, 2020	Dec. 31, 2019
Assets acquired
Goodwill	$ 443,001		$ 420,562
SB One Bancorp
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
Identifiable intangible assets acquired		9,965
Foreclosed assets, net		2,441
Other assets		12,199
Total assets acquired		2,195,708
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Mortgage Escrow Deposits		0
Liabilities assumed
Deposits		1,757,777
Borrowed funds		201,582
Subordinated debentures		25,074
Borrowed funds		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	Jul. 31, 2020	Apr. 01, 2019
Business Acquisition [Line Items]
Gross amortized cost basis at July 31, 2020	$ 1,787,057
Interest component of expected cash flows (accretable difference)	455
Credit fair value adjustment on non-PCD loans	(21,397)
Allowance for credit losses on PCD loans	(13,586)
Gross amortized cost basis at July 31, 2020		$ 822,400
SB One Bancorp
Business Acquisition [Line Items]
Interest component of expected cash flows (accretable difference)	(7,988)
Allowance for credit losses on PCD loans	(13,586)
Gross amortized cost basis at July 31, 2020	$ 315,784

Business Combinations - Tirschw

Business Combinations - Tirschwell & Loewy, Inc Acquisition (Details) - USD ($) $ in Thousands	Apr. 01, 2019	Dec. 31, 2019	Dec. 31, 2020
Business Acquisition [Line Items]
Assets under management	$ 822,400
Tirschwell & Loewy Acquisition
Business Acquisition [Line Items]
Goodwill recorded as result of acquisition	8,200
Contingent consideration liability at fair value	$ 6,600		$ 9,400
Additional cash consideration to former stakeholders	3 years
Contingent consideration limit	$ 11,000		$ 11,000
Total cost of acquisition	21,600
Cash consideration	15,000
Increase in estimated fair value of contingent consideration liability		$ 2,800
Tirschwell & Loewy Acquisition | Customer Relationships
Business Acquisition [Line Items]
Identifiable intangible assets acquired	12,600
Tirschwell & Loewy Acquisition | Other Intangible Assets
Business Acquisition [Line Items]
Identifiable intangible assets acquired	$ 800

Restrictions on Cash and Due _2

Restrictions on Cash and Due from Banks (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Cash and due from banks	$ 404,355	$ 131,555
Cash Reserves Required by Banking Regulations
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Cash and due from banks	$ 114,300	$ 77,000

Held to Maturity Debt Securit_3

Held to Maturity Debt Securities - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)security	Dec. 31, 2019USD ($)security	Dec. 31, 2018USD ($)	Jan. 01, 2020USD ($)	Dec. 31, 2017USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Allowance for credit losses	$ (78)	$ 0		$ 70
Retained earnings	718,090	695,273
Held to maturity securities at carrying value	416,100	428,000
Investment securities held to maturity	450,965	453,629
Fair value	472,451	467,966
Allowance for credit losses	101,466	55,525	$ 55,562		$ 60,195
Proceeds from maturities, calls and paydowns of held to maturity debt securities	$ 62,051	$ 42,696	39,534
Number of securities in an unrealized loss position | security	7	35
AAA
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	$ 65,492	$ 56,033
Amount of total portfolio	15.00%
AA
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	$ 314,410	333,450
Amount of total portfolio	70.00%
A
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	$ 59,748	62,652
Amount of total portfolio	13.00%
Fitch, A Rating Or Not Rated
Schedule of Held-to-maturity Securities [Line Items]
Amount of total portfolio	2.00%
Held-to-maturity Securities
Schedule of Held-to-maturity Securities [Line Items]
Recognized gain on calls of securities held to maturity portfolio	$ 81	72	10
Recognized loss on calls of securities held to maturity portfolio	0	0	1
Proceeds from maturities, calls and paydowns of held to maturity debt securities	49,300	33,900	$ 32,000
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Allowance for credit losses	0	0
Investment securities held to maturity	62
Fair value	64	122
Allowance for credit losses	78
Mortgage-backed securities | AAA
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	62	118
Mortgage-backed securities | AA
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	0	0
Mortgage-backed securities | A
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	$ 0	$ 0
Accounting Standards Update 2016-13
Schedule of Held-to-maturity Securities [Line Items]
Allowance for credit losses				70
Retained earnings				8,300
Allowance for credit losses				7,900
Accounting Standards Update 2016-13, Effect On Debt Securities
Schedule of Held-to-maturity Securities [Line Items]
Retained earnings				$ 52

Held to Maturity Debt Securit_4

Held to Maturity Debt Securities - Held to Maturity (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 451,043		$ 453,629
Gross unrealized gains	21,551		14,467
Gross unrealized losses	(65)		(130)
Allowance for credit losses	(78)	$ 70	0
Fair value	472,451		467,966
Investment securities held to maturity	450,965		453,629
Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	7,600		6,599
Gross unrealized gains	6		11
Gross unrealized losses	(5)		(9)
Allowance for credit losses	0		0
Fair value	7,601		6,601
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	62		118
Gross unrealized gains	2		4
Gross unrealized losses	0		0
Allowance for credit losses	0		0
Fair value	64		122
Investment securities held to maturity	62
State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	433,655		437,074
Gross unrealized gains	21,442		14,394
Gross unrealized losses	(58)		(115)
Allowance for credit losses	(66)		0
Fair value	454,973		451,353
Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	9,726		9,838
Gross unrealized gains	101		58
Gross unrealized losses	(2)		(6)
Allowance for credit losses	(12)		0
Fair value	$ 9,813		$ 9,890

Held to Maturity Debt Securit_5

Held to Maturity Debt Securities - Securities Held to Maturity by Contractual Maturity (Detail) $ in Thousands	Dec. 31, 2020USD ($)
Investments, Debt and Equity Securities [Abstract]
Due in one year or less, amortized cost	$ 21,623
Due after one year through five years, amortized cost	133,869
Due after five years through ten years, amortized cost	216,671
Due after ten years, amortized cost	78,818
Total Amortized cost	450,981
Due in one year or less, fair value	21,736
Due after one year through five years, fair value	137,978
Due after five years through ten years, fair value	229,902
Due after ten years, fair value	82,849
Total Fair value	$ 472,465

Held to Maturity Debt Securit_6

Held to Maturity Debt Securities - ASU 2016-13 Adoption Impact (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses	$ (78)	$ 70	$ 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	$ (12)		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

Held to Maturity Debt Securit_7

Held to Maturity Debt Securities - Disclosure Regarding Length of Time on Investment Securities with Temporary Impairment (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	$ 7,627	$ 14,530
Less than 12 months, gross unrealized losses	(48)	(57)
12 months or longer, Fair value	406	2,093
12 months or longer, gross unrealized losses	(17)	(73)
Total, fair value	8,033	16,623
Total, gross unrealized losses	(65)	(130)
Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	1,995	3,601
Less than 12 months, gross unrealized losses	(5)	(9)
12 months or longer, Fair value	0	0
12 months or longer, gross unrealized losses	0	0
Total, fair value	1,995	3,601
Total, gross unrealized losses	(5)	(9)
State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	4,846	7,675
Less than 12 months, gross unrealized losses	(41)	(42)
12 months or longer, Fair value	406	2,093
12 months or longer, gross unrealized losses	(17)	(73)
Total, fair value	5,252	9,768
Total, gross unrealized losses	(58)	(115)
Corporate Obligations
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	786	3,254
Less than 12 months, gross unrealized losses	(2)	(6)
12 months or longer, Fair value	0	0
12 months or longer, gross unrealized losses	0	0
Total, fair value	786	3,254
Total, gross unrealized losses	$ (2)	$ (6)

Held to Maturity Debt Securit_8

Held to Maturity Debt Securities - Amortized Cost of held to Maturity Debt Securities by Year of Originations and Credit Rating (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 450,965	$ 453,629
Total	451,043	453,629
Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Total	7,600	6,599
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	62
Total	62	118
State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Total	433,655	437,074
Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Total	9,726	9,838
AAA
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	65,492	56,033
AAA | Agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	7,600	6,599
AAA | Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	62	118
AAA | State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	57,830	49,316
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	314,410	333,450
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	311,155	330,322
AA | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	3,255	3,128
A
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	59,748	62,652
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	53,302	56,317
A | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	6,446	6,335
BBB
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	1,115	1,469
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	1,119
BBB | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	350
Not Rated
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	10,278	25
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	10,253	0
Not Rated | Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 25	$ 25

Available for Sale Debt Secur_3

Available for Sale Debt Securities - Securities Available for Sale (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	$ 1,073,570	$ 965,135
Gross unrealized gains	32,890	12,932
Gross unrealized losses	(971)	(1,148)
Fair value	1,105,489	976,919
Agency obligations
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	1,001
Gross unrealized gains	8
Gross unrealized losses	0
Fair value	1,009
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	910,393	936,196
Gross unrealized gains	28,872	12,367
Gross unrealized losses	(852)	(1,133)
Fair value	938,413	947,430
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	52,295
Gross unrealized gains	1,535
Gross unrealized losses
Fair value	53,830
State and municipal obligations
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	69,687	3,907
Gross unrealized gains	1,666	172
Gross unrealized losses	(95)	0
Fair value	71,258	4,079
Corporate obligations
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	40,194	25,032
Gross unrealized gains	809	393
Gross unrealized losses	(24)	(15)
Fair value	$ 40,979	$ 25,410

Available for Sale Debt Secur_4

Available for Sale Debt Securities - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020USD ($)security	Dec. 31, 2019USD ($)security	Dec. 31, 2018USD ($)
Debt Securities, Available-for-sale [Line Items]
Securities available for sale at carrying value	$ 618,000,000	$ 536,400,000
Amortized cost	1,073,570,000	965,135,000
Fair value	1,105,489,000	976,919,000
Proceeds from sales of available for sale debt securities	$ 13,905,000	$ 0	$ 2,212,000
Number of securities in an unrealized loss position | security	42	50
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 910,393,000	$ 936,196,000
Fair value	938,413,000	$ 947,430,000
Private Label Mortgage-Backed Securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 17,445
Number of securities in an unrealized loss position | security	1
Unrealized losses	$ (1,300)
Agency Obligations, Collateralized Mortgage Backed Securities And Asset-Backed Securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	963,700,000
Fair value	993,300,000
Available-for-sale Securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	109,881,000
Fair value	112,237,000
Proceeds from sales of available for sale debt securities	$ 13,900,000

Available for Sale Debt Secur_5

Available for Sale Debt Securities - Securities Available for Sale by Contractual Maturity (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	$ 1,073,570	$ 965,135
Securities available for sale, at fair value	1,105,489	$ 976,919
Available-for-sale Securities
Debt Securities, Available-for-sale [Line Items]
Due after one year through five years, amortized cost	5,676
Due after five years through ten years, amortized cost	38,046
Due after ten years, amortized cost	66,159
Securities available for sale, amortized cost	109,881
Due after one year through five years, fair value	5,791
Due after five years through ten years, fair value	38,780
Due after ten years, fair value	67,666
Securities available for sale, at fair value	$ 112,237

Available for Sale Debt Secur_6

Available for Sale Debt Securities - Disclosure on Securities Available for Sale with Temporary Impairment (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 132,875	$ 138,283
Less than 12 months, gross unrealized losses	(919)	(644)
12 months or longer, fair value	10,007	46,819
12 months or longer, gross unrealized losses	(52)	(504)
Total, fair value	142,882	185,102
Total, gross unrealized losses	(971)	(1,148)
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	127,600	136,270
Less than 12 months, gross unrealized losses	(824)	(629)
12 months or longer, fair value	8,007	46,819
12 months or longer, gross unrealized losses	(28)	(504)
Total, fair value	135,607	183,089
Total, gross unrealized losses	(852)	(1,133)
State and municipal obligations
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	5,275
Less than 12 months, gross unrealized losses	(95)
12 months or longer, fair value	0
12 months or longer, gross unrealized losses	0
Total, fair value	5,275
Total, gross unrealized losses	(95)
Corporate obligations
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	0	2,013
Less than 12 months, gross unrealized losses	0	(15)
12 months or longer, fair value	2,000	0
12 months or longer, gross unrealized losses	(24)	0
Total, fair value	2,000	2,013
Total, gross unrealized losses	$ (24)	$ (15)

Loans Receivable and Allowanc_3

Loans Receivable and Allowance for Loan Losses - Additional Information (Detail)	Jan. 01, 2020USD ($)	Dec. 31, 2020USD ($)SecurityLoancounterpartyContractborrower	Dec. 31, 2019USD ($)borrowerContractSecurityLoan	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Less allowance for credit losses		$ 101,466,000	$ 55,525,000	$ 55,562,000	$ 60,195,000
Retained earnings		718,090,000	695,273,000
Decreased interest income		1,000,000	845,000	894,000
Principal amount of nonaccrual loans		$ 87,100,000	$ 40,200,000
Number of loans 90 days past due and still accruing | Contract		0	0
Increase in interest income		$ 3,200,000	$ 1,700,000	1,400,000
Interest income, cash basis		1,875,000	$ 2,123,000	$ 2,000,000
Impaired loan defined floor limit (greater than)		$ 1,000,000
Impaired loans number | SecurityLoan		169	158
Impaired loans		$ 86,046,000	$ 70,641,000
Number of borrowers | borrower		110	128
Collateral-dependent impaired loans		$ 26,300,000	$ 20,400,000
Credit loss expense for off-balance sheet credit exposures		29,700,000
Allowances for loan losses		$ 8,974,000	$ 5,067,000
Yield percentage rate		5.44%	3.82%
Weighted average modified interest rate		5.43%	3.83%
Number of payment defaults for loans modified as TDRs | SecurityLoan		0	1
Purchased credit-impaired loans		$ 0	$ 746,000
Average balances of impaired loans		66,800,000	74,100,000
Loan commitments		1,990,000,000	1,260,000,000
Undisbursed home equity and personal credit lines		241,200,000	212,400,000
Loans		$ 9,822,890,000	$ 7,332,885,000
Number of PPP loans | counterparty		1,287
Paycheck protection program		$ 473,200,000
SB One Bancorp
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Less allowance for credit losses		$ 13,600,000
Impaired Loans Troubled Debt Restructurings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans number | SecurityLoan		135	147
Impaired loans		$ 39,600,000	$ 48,300,000
Number of troubled debt restructurings | SecurityLoan		112	133
Loans and leases receivable, impaired, nonperforming, accrual of interest		$ 23,100,000	$ 42,700,000
Charge-offs		7,300,000	11,600,000
Allowances for loan losses		362,000	177,130
No Allowance For Loan Losses Required
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired financing receivable with no related allowance		43,700,000	$ 16,000,000
Consumer Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans		$ 9,000
Commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans number | SecurityLoan		169	158
Impaired loans		$ 86,000,000	$ 70,600,000
Commercial | Non Accrual
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans number | SecurityLoan		55	25
Impaired loans		$ 61,400,000	$ 27,900,000
Commercial Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans		12,800,000
Residential Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans		$ 13,400,000
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
Retained earnings	8,300,000
Credit loss expense for off-balance sheet credit exposures	3,200,000
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 Loan Losses - Schedule of Summarized Loans Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 9,839,858	$ 7,337,564
PCI loans prior to CECL	0	(746)
Premiums on purchased loans	1,566	2,474
Unearned discounts	(12)	(26)
Net deferred fees	(18,522)	(7,873)
Total loans	9,822,890	7,332,885
Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	6,779,822	5,311,445
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	2,567,470	1,634,759
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	492,566	391,360
Residential Real Estate | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	1,294,702	1,077,689
Commercial Real Estate | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	3,458,666	2,578,393
Multifamily | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	1,484,515	1,225,551
Construction | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 541,939	$ 429,812

Loans Receivable and Allowanc_5

Loans Receivable and Allowance for Loan Losses - Summary of Aging Loans Receivable by Portfolio Segment and Class (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	$ 87,090	$ 40,194
90 days or more past due and accruing	0	0
Total  Past Due	125,100	52,769
Current	9,714,758	7,284,795
Total gross loans	9,839,858	7,337,564
Non-accrual loans with no related allowance	49,013	6,796
Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	22,762	9,564
Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	15,248	3,011
Mortgage loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	42,689	13,813
90 days or more past due and accruing	0	0
Total  Past Due	68,995	22,297
Current	6,710,827	5,289,148
Total gross loans	6,779,822	5,311,445
Non-accrual loans with no related allowance	31,189	2,989
Mortgage loans | Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	9,315	8,543
90 days or more past due and accruing	0	0
Total  Past Due	33,956	17,027
Current	1,260,746	1,060,662
Total gross loans	1,294,702	1,077,689
Non-accrual loans with no related allowance	9,315	2,989
Mortgage loans | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	31,982	5,270
90 days or more past due and accruing	0	0
Total  Past Due	32,856	5,270
Current	3,425,810	2,573,123
Total gross loans	3,458,666	2,578,393
Non-accrual loans with no related allowance	20,482	0
Mortgage loans | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	0	0
90 days or more past due and accruing	0	0
Total  Past Due	791	0
Current	1,483,724	1,225,551
Total gross loans	1,484,515	1,225,551
Non-accrual loans with no related allowance	0	0
Mortgage loans | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	1,392	0
90 days or more past due and accruing	0	0
Total  Past Due	1,392	0
Current	540,547	429,812
Total gross loans	541,939	429,812
Non-accrual loans with no related allowance	1,392	0
Mortgage loans | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	16,756	5,905
Mortgage loans | Financing Receivables, 30 to 59 Days Past Due | Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	15,789	5,905
Mortgage loans | Financing Receivables, 30 to 59 Days Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	761	0
Mortgage loans | Financing Receivables, 30 to 59 Days Past Due | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	206	0
Mortgage loans | Financing Receivables, 30 to 59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	0	0
Mortgage loans | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	9,550	2,579
Mortgage loans | Financing Receivables, 60 to 89 Days Past Due | Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	8,852	2,579
Mortgage loans | Financing Receivables, 60 to 89 Days Past Due | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	113	0
Mortgage loans | Financing Receivables, 60 to 89 Days Past Due | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	585	0
Mortgage loans | Financing Receivables, 60 to 89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	0	0
Commercial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	42,118	25,160
90 days or more past due and accruing	0	0
Total  Past Due	44,955	27,638
Current	2,522,515	1,607,121
Total gross loans	2,567,470	1,634,759
Non-accrual loans with no related allowance	15,541	3,238
Commercial loans | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	1,658	2,383
Commercial loans | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	1,179	95
Consumer loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	2,283	1,221
90 days or more past due and accruing	0	0
Total  Past Due	11,150	2,834
Current	481,416	388,526
Total gross loans	492,566	391,360
Non-accrual loans with no related allowance	2,283	569
Consumer loans | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	4,348	1,276
Consumer loans | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable past due	$ 4,519	$ 337

Loans Receivable and Allowanc_6

Loans Receivable and Allowance for Loan Losses - Schedule of Allowance for Loan Losses by Portfolio Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 55,525	$ 55,562	$ 60,195
Provision charged to operations	29,712	13,100	23,700
Increase due to the initial adoption of CECL	7,920	0	0
Initial allowance related to PCD loans	13,586	0	0
Recoveries of loans previously charged off	2,636	1,895	1,685
Loans charged off	(7,913)	(15,032)	(30,018)
Balance at end of period	101,466	55,525	55,562
Mortgage loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	25,511	27,678
Provision charged to operations	18,945	(2,323)
Increase due to the initial adoption of CECL	14,188
Initial allowance related to PCD loans	11,984
Recoveries of loans previously charged off	396	422
Loans charged off	(2,717)	(266)
Balance at end of period	68,307	25,511	27,678
Commercial loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	28,263	25,693
Provision charged to operations	10,199	15,928
Increase due to the initial adoption of CECL	(9,974)
Initial allowance related to PCD loans	1,582
Recoveries of loans previously charged off	1,776	665
Loans charged off	(4,762)	(14,023)
Balance at end of period	27,084	28,263	25,693
Consumer loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	1,751	2,191
Provision charged to operations	568	(505)
Increase due to the initial adoption of CECL	3,706
Initial allowance related to PCD loans	20
Recoveries of loans previously charged off	464	808
Loans charged off	(434)	(743)
Balance at end of period	$ 6,075	$ 1,751	$ 2,191

Loans Receivable and Allowanc_7

Loans Receivable and Allowance for Loan Losses - Impact of ASC 326 Adoption (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses	$ 101,466		$ 55,525	$ 55,562	$ 60,195
Mortgage Portfolio
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses	25,511
Mortgage Portfolio | Residential
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses	3,414
Mortgage Portfolio | Commercial
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses	12,831
Mortgage Portfolio | Multifamily
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses	3,374
Mortgage Portfolio | Construction
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses	5,892
Commercial loans
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses	27,084		28,263	25,693
Consumer loans
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses	$ 6,075		$ 1,751	$ 2,191
Cumulative Effect, Period of Adoption, Adjusted Balance
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		$ 63,445
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		39,739
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio | Residential
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		8,950
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio | Commercial
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		17,118
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio | Multifamily
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		9,519
Cumulative Effect, Period of Adoption, Adjusted Balance | Mortgage Portfolio | Construction
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		4,152
Cumulative Effect, Period of Adoption, Adjusted Balance | Commercial loans
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		18,254
Cumulative Effect, Period of Adoption, Adjusted Balance | Consumer loans
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		5,452
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		7,920
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		14,228
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio | Residential
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		5,536
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio | Commercial
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		4,287
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio | Multifamily
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		6,145
Cumulative Effect, Period of Adoption, Adjustment | Mortgage Portfolio | Construction
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		(1,740)
Cumulative Effect, Period of Adoption, Adjustment | Commercial loans
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		(10,009)
Cumulative Effect, Period of Adoption, Adjustment | Consumer loans
New Accounting Pronouncement, Early Adoption [Line Items]
Allowance for credit losses		$ 3,701

Loans Receivable and Allowanc_8

Loans Receivable and Allowance for Loan Losses - Summary of Loans Receivable by Portfolio Segment and Impairment Method (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 86,046	$ 70,641
Collectively evaluated for impairment	9,753,812	7,266,923
Total gross loans	9,839,858	7,337,564
Mortgage loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	48,783	39,910
Collectively evaluated for impairment	6,731,039	5,271,535
Total gross loans	6,779,822	5,311,445
Commercial loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	35,832	28,357
Collectively evaluated for impairment	2,531,638	1,606,402
Total gross loans	2,567,470	1,634,759
Consumer loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	1,431	2,374
Collectively evaluated for impairment	491,135	388,986
Total gross loans	$ 492,566	$ 391,360

Loans Receivable and Allowanc_9

Loans Receivable and Allowance for Loan Losses - Summary of Allowance for Loan Losses by Portfolio Segment and Impairment Classification (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 8,974	$ 5,067
Collectively evaluated for impairment	92,492	50,458
Total	101,466	55,525
Mortgage loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	4,220	1,580
Collectively evaluated for impairment	64,087	23,931
Total	68,307	25,511
Commercial loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	4,715	3,462
Collectively evaluated for impairment	22,369	24,801
Total	27,084	28,263
Consumer loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	39	25
Collectively evaluated for impairment	6,036	1,726
Total	$ 6,075	$ 1,751

Loans Receivable and Allowan_10

Loans Receivable and Allowance for Loan Losses - Schedule of Troubled Debt Restructurings (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)SecurityLoan	Dec. 31, 2019USD ($)SecurityLoan
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan	6	14
Pre-Modification Outstanding Recorded Investment	$ 3,149	$ 18,044
Post-Modification Outstanding Recorded Investment	$ 3,006	$ 17,884
Mortgage loans
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan	2	4
Pre-Modification Outstanding Recorded Investment	$ 434	$ 15,627
Post-Modification Outstanding Recorded Investment	$ 360	$ 15,594
Mortgage loans | Residential
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan	2	3
Pre-Modification Outstanding Recorded Investment	$ 434	$ 1,617
Post-Modification Outstanding Recorded Investment	$ 360	$ 1,584
Mortgage loans | Commercial
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan		1
Pre-Modification Outstanding Recorded Investment		$ 14,010
Post-Modification Outstanding Recorded Investment		$ 14,010
Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan	4	6
Pre-Modification Outstanding Recorded Investment	$ 2,715	$ 1,996
Post-Modification Outstanding Recorded Investment	$ 2,646	$ 1,888
Consumer loans
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | SecurityLoan		4
Pre-Modification Outstanding Recorded Investment		$ 421
Post-Modification Outstanding Recorded Investment		$ 402

Loans Receivable and Allowan_11

Loans Receivable and Allowance for Loan Losses - Schedule of Trouble Debt Restructuring Subsequently Defaulted (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)SecurityLoan	Dec. 31, 2019USD ($)SecurityLoan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | SecurityLoan	0	1
Outstanding Recorded  Investment | $	$ 0	$ 578
Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | SecurityLoan	0	1
Outstanding Recorded  Investment | $	$ 0	$ 578

Loans Receivable and Allowan_12

Loans Receivable and Allowance for Loan Losses - Summary of PCD Loans (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Apr. 01, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross amortized cost basis at July 31, 2020					$ 822,400
Interest component of expected cash flows (accretable difference)	$ 455
Fair value of acquired loans at July 31, 2020	1,766,115
Allowance for credit losses on PCD loans	(13,586)
Net PCD loans		$ 1,752,529	$ 0	$ 0
SB One Bancorp
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 acquired loans at July 31, 2020	307,796
Allowance for credit losses on PCD loans	(13,586)
Net PCD loans	$ 294,210	$ 294,210

Loans Receivable and Allowan_13

Loans Receivable and Allowance for Loan Losses - Summary of Impaired Loans Receivable by Class (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, Unpaid Principal Balance	$ 48,672	$ 19,491
Loans with no related allowance, Recorded Investment	43,683	15,952
Loans with no related allowance, Related Allowance	0	0
Loans with no related allowance, Average Recorded Investment	40,411	16,416
Loans with no related allowance, Interest Income Recognized	667	636
Loans with an allowance recorded, Unpaid Principal Balance	48,455	58,335
Loans with an allowance recorded, Recorded Investment	42,363	54,689
Loans with an allowance recorded, Related Allowance	8,974	5,067
Loans with an allowance recorded, Average Recorded Investment	26,352	57,721
Loans with an allowance recorded, Interest Income Recognized	1,208	1,487
Total, Unpaid Principal Balance	97,127	77,826
Total, Recorded Investment	86,046	70,641
Total, Related Allowance	8,974	5,067
Total, Average Recorded Investment	66,763	74,137
Total, Interest Income Recognized	1,875	2,123	$ 2,000
Mortgage loans
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, Unpaid Principal Balance	31,395	13,478
Loans with no related allowance, Recorded Investment	28,794	10,739
Loans with no related allowance, Related Allowance	0	0
Loans with no related allowance, Average Recorded Investment	27,613	10,910
Loans with no related allowance, Interest Income Recognized	571	533
Loans with an allowance recorded, Unpaid Principal Balance	22,943	29,705
Loans with an allowance recorded, Recorded Investment	19,989	29,171
Loans with an allowance recorded, Related Allowance	4,220	1,580
Loans with an allowance recorded, Average Recorded Investment	7,727	29,316
Loans with an allowance recorded, Interest Income Recognized	877	997
Total, Unpaid Principal Balance	54,338	43,183
Total, Recorded Investment	48,783	39,910
Total, Related Allowance	4,220	1,580
Total, Average Recorded Investment	35,340	40,226
Total, Interest Income Recognized	1,448	1,530
Mortgage loans | Residential Real Estate
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, Unpaid Principal Balance	13,981	13,478
Loans with no related allowance, Recorded Investment	11,380	10,739
Loans with no related allowance, Related Allowance	0	0
Loans with no related allowance, Average Recorded Investment	11,587	10,910
Loans with no related allowance, Interest Income Recognized	511	533
Loans with an allowance recorded, Unpaid Principal Balance	7,950	10,860
Loans with an allowance recorded, Recorded Investment	7,506	10,326
Loans with an allowance recorded, Related Allowance	806	829
Loans with an allowance recorded, Average Recorded Investment	7,604	10,454
Loans with an allowance recorded, Interest Income Recognized	307	428
Total, Unpaid Principal Balance	21,931	24,338
Total, Recorded Investment	18,886	21,065
Total, Related Allowance	806	829
Total, Average Recorded Investment	19,191	21,364
Total, Interest Income Recognized	818	961
Mortgage loans | Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, Unpaid Principal Balance	17,414	0
Loans with no related allowance, Recorded Investment	17,414	0
Loans with no related allowance, Related Allowance	0	0
Loans with no related allowance, Average Recorded Investment	16,026	0
Loans with no related allowance, Interest Income Recognized	60	0
Loans with an allowance recorded, Unpaid Principal Balance	14,993	18,845
Loans with an allowance recorded, Recorded Investment	12,483	18,845
Loans with an allowance recorded, Related Allowance	3,414	751
Loans with an allowance recorded, Average Recorded Investment	123	18,862
Loans with an allowance recorded, Interest Income Recognized	570	569
Total, Unpaid Principal Balance	32,407	18,845
Total, Recorded Investment	29,897	18,845
Total, Related Allowance	3,414	751
Total, Average Recorded Investment	16,149	18,862
Total, Interest Income Recognized	630	569
Mortgage loans | Multifamily
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, Unpaid Principal Balance	0	0
Loans with no related allowance, Recorded Investment	0	0
Loans with no related allowance, Related Allowance	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, Unpaid Principal Balance	0	0
Loans with an allowance recorded, Recorded Investment	0	0
Loans with an allowance recorded, Related Allowance	0	0
Loans with an allowance recorded, Average Recorded Investment	0	0
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Unpaid Principal Balance	0	0
Total, Recorded Investment	0	0
Total, Related Allowance	0	0
Total, Average Recorded Investment	0	0
Total, Interest Income Recognized	0	0
Mortgage loans | Construction
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, Unpaid Principal Balance	0	0
Loans with no related allowance, Recorded Investment	0	0
Loans with no related allowance, Related Allowance	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, Unpaid Principal Balance	0	0
Loans with an allowance recorded, Recorded Investment	0	0
Loans with an allowance recorded, Related Allowance	0	0
Loans with an allowance recorded, Average Recorded Investment	0	0
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Unpaid Principal Balance	0	0
Total, Recorded Investment	0	0
Total, Related Allowance	0	0
Total, Average Recorded Investment	0	0
Total, Interest Income Recognized	0	0
Commercial loans
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, Unpaid Principal Balance	15,895	3,927
Loans with no related allowance, Recorded Investment	14,009	3,696
Loans with no related allowance, Related Allowance	0	0
Loans with no related allowance, Average Recorded Investment	12,791	4,015
Loans with no related allowance, Interest Income Recognized	46	17
Loans with an allowance recorded, Unpaid Principal Balance	24,947	27,762
Loans with an allowance recorded, Recorded Investment	21,823	24,661
Loans with an allowance recorded, Related Allowance	4,715	3,462
Loans with an allowance recorded, Average Recorded Investment	18,620	27,527
Loans with an allowance recorded, Interest Income Recognized	311	444
Total, Unpaid Principal Balance	40,842	31,689
Total, Recorded Investment	35,832	28,357
Total, Related Allowance	4,715	3,462
Total, Average Recorded Investment	31,411	31,542
Total, Interest Income Recognized	357	461
Consumer loans
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, Unpaid Principal Balance	1,382	2,086
Loans with no related allowance, Recorded Investment	880	1,517
Loans with no related allowance, Related Allowance	0	0
Loans with no related allowance, Average Recorded Investment	7	1,491
Loans with no related allowance, Interest Income Recognized	50	86
Loans with an allowance recorded, Unpaid Principal Balance	565	868
Loans with an allowance recorded, Recorded Investment	551	857
Loans with an allowance recorded, Related Allowance	39	25
Loans with an allowance recorded, Average Recorded Investment	5	878
Loans with an allowance recorded, Interest Income Recognized	20	46
Total, Unpaid Principal Balance	1,947	2,954
Total, Recorded Investment	1,431	2,374
Total, Related Allowance	39	25
Total, Average Recorded Investment	12	2,369
Total, Interest Income Recognized	$ 70	$ 132

Loans Receivable and Allowan_14

Loans Receivable and Allowance for Loan Losses - Summary of Loans Receivable by Credit Quality Risk Rating Indicator (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 9,822,890	$ 7,332,885
Total gross loans	9,839,858	7,337,564
Total gross loans	9,839,858
2020	2,164,207
2019	1,593,812
2018	1,198,663
2017	1,102,016
2016 and prior	4,137,717
Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total loans	605,963	218,056
2020	4,380
2019	67,551
2018	84,109
2017	93,366
2016 and prior	356,557
Criticized and classified loans, gross	207,400
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	340,617	128,694
2020	3,465
2019	52,586
2018	68,268
2017	53,276
2016 and prior	163,022
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	265,294	88,526
2020	915
2019	14,965
2018	15,841
2017	40,090
2016 and prior	193,483
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	52	836
2020	0
2019	0
2018	0
2017	0
2016 and prior	52
Loss
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,233,895	7,119,508
2020	2,159,827
2019	1,526,261
2018	1,114,554
2017	1,008,650
2016 and prior	3,781,160
Mortgage loans
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	6,779,822	5,311,445
Total gross loans	6,779,822	5,311,445
2020	1,313,601
2019	1,231,931
2018	888,270
2017	802,284
2016 and prior	2,682,925
Mortgage loans | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total loans	313,126	79,003
2020	2,155
2019	50,783
2018	71,113
2017	49,886
2016 and prior	139,189
Mortgage loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	181,670	49,160
2020	1,991
2019	45,503
2018	61,448
2017	25,955
2016 and prior	46,773
Mortgage loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	131,456	29,843
2020	164
2019	5,280
2018	9,665
2017	23,931
2016 and prior	92,416
Mortgage loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Loss
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,466,696	5,232,442
2020	1,311,446
2019	1,181,148
2018	817,157
2017	752,398
2016 and prior	2,543,736
Mortgage loans | Residential
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,294,702	1,077,689
Total gross loans	1,294,702
2020	272,022
2019	155,492
2018	95,257
2017	104,164
2016 and prior	689,871
Mortgage loans | Residential | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total loans	29,533	12,606
2020	164
2019	3,375
2018	1,669
2017	2,221
2016 and prior	22,104
Mortgage loans | Residential | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,882	2,402
2020	0
2019	0
2018	0
2017	0
2016 and prior	2,882
Mortgage loans | Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	26,651	10,204
2020	164
2019	3,375
2018	1,669
2017	2,221
2016 and prior	19,222
Mortgage loans | Residential | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Residential | Loss
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Residential | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,265,169	1,065,083
2020	271,858
2019	152,117
2018	93,588
2017	101,943
2016 and prior	667,767
Mortgage loans | Commercial
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	3,458,666	2,578,393
Total gross loans	3,458,666
2020	653,276
2019	644,912
2018	433,620
2017	480,896
2016 and prior	1,355,622
Mortgage loans | Commercial | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total loans	222,944	60,216
2020	0
2019	32,218
2018	37,133
2017	43,933
2016 and prior	109,660
Mortgage loans | Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	124,631	46,758
2020	0
2019	30,313
2018	33,446
2017	22,838
2016 and prior	38,034
Mortgage loans | Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	98,313	13,458
2020	0
2019	1,905
2018	3,687
2017	21,095
2016 and prior	71,626
Mortgage loans | Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Commercial | Loss
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Commercial | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,235,722	2,518,177
2020	653,276
2019	612,694
2018	396,487
2017	436,963
2016 and prior	1,245,962
Mortgage loans | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,484,515	1,225,551
Total gross loans	1,484,515
2020	293,188
2019	180,998
2018	209,017
2017	173,385
2016 and prior	635,352
Mortgage loans | Multi-family | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total loans	31,349	0
2020	0
2019	682
2018	20,125
2017	3,117
2016 and prior	7,425
Mortgage loans | Multi-family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	29,781	0
2020	0
2019	682
2018	20,125
2017	3,117
2016 and prior	5,857
Mortgage loans | Multi-family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,568	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	1,568
Mortgage loans | Multi-family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Multi-family | Loss
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Multi-family | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,453,166	1,225,551
2020	293,188
2019	180,316
2018	188,892
2017	170,268
2016 and prior	627,927
Mortgage loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	541,939	429,812
Total gross loans	541,939
2020	95,115
2019	250,529
2018	150,376
2017	43,839
2016 and prior	2,080
Mortgage loans | Construction | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total loans	29,300	6,181
2020	1,991
2019	14,508
2018	12,186
2017	615
2016 and prior	0
Mortgage loans | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	24,376	0
2020	1,991
2019	14,508
2018	7,877
2017	0
2016 and prior	0
Mortgage loans | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,924	6,181
2020	0
2019	0
2018	4,309
2017	615
2016 and prior	0
Mortgage loans | Construction | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Construction | Loss
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Mortgage loans | Construction | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total loans	512,639	423,631
2020	93,124
2019	236,021
2018	138,190
2017	43,224
2016 and prior	2,080
Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2,567,470	1,634,759
Total gross loans	2,567,470	1,634,759
2020	787,865
2019	291,810
2018	245,856
2017	243,894
2016 and prior	1,207,649
Commercial loans | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total loans	284,224	137,099
2020	2,200
2019	16,400
2018	12,610
2017	43,410
2016 and prior	209,604
Commercial loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	157,080	79,248
2020	1,474
2019	7,080
2018	6,544
2017	27,251
2016 and prior	114,731
Commercial loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	127,092	57,015
2020	726
2019	9,320
2018	6,066
2017	16,159
2016 and prior	94,821
Commercial loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	52	836
2020	0
2019	0
2018	0
2017	0
2016 and prior	52
Commercial loans | Loss
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Commercial loans | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,283,246	1,497,660
2020	785,665
2019	275,410
2018	233,246
2017	200,484
2016 and prior	998,045
Consumer loans
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	492,566	391,360
Total gross loans	492,566
2020	62,741
2019	70,071
2018	64,537
2017	55,838
2016 and prior	247,143
Consumer loans | Total classified and criticized
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,613	1,954
2020	25
2019	368
2018	386
2017	70
2016 and prior	7,764
Consumer loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,867	286
2020	0
2019	3
2018	276
2017	70
2016 and prior	1,518
Consumer loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,746	1,668
2020	25
2019	365
2018	110
2017	0
2016 and prior	6,246
Consumer loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Consumer loans | Loss
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
2020	0
2019	0
2018	0
2017	0
2016 and prior	0
Consumer loans | Pass/Watch
Financing Receivable, Recorded Investment [Line Items]
Total loans	483,953	$ 389,406
2020	62,716
2019	69,703
2018	64,151
2017	55,768
2016 and prior	$ 239,379

Banking Premises and Equipmen_2

Banking Premises and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Land	$ 13,631	$ 12,440
Banking premises	72,362	59,708
Furniture, fixtures and equipment	52,128	45,660
Leasehold improvements	37,756	35,749
Construction in progress	9,669	3,270
Banking premises and equipment, gross	185,546	156,827
Less accumulated depreciation and amortization	109,600	101,617
Banking premises and equipment, net	75,946	55,210
Depreciation expense	$ 7,600	$ 7,700	$ 8,000

Intangible Assets - Schedule of

Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 443,001	$ 420,562
Core deposit premiums	1,112	1,753
Customer relationship and other intangibles	21,466	14,142
Mortgage servicing rights	633	562
Total intangible assets	$ 466,212	$ 437,019

Intangible Assets - Amortizatio

Intangible Assets - Amortization Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Core deposit premiums	$ 824	$ 786	$ 931
Customer relationship and other intangibles	2,457	1,869	1,073
Mortgage servicing rights	144	85	123
Total amortization expense of intangible assets	$ 3,425	$ 2,740	$ 2,127

Intangible Assets - Scheduled o

Intangible Assets - Scheduled of Future Amortization (Detail) $ in Thousands	Dec. 31, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2021	$ 3,513
2022	3,143
2023	2,771
2024	2,432
2025	$ 2,206

Deposits - Schedule of Deposits

Deposits - Schedule of Deposits (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Liabilities [Abstract]
Savings deposits	$ 1,348,147	$ 983,714
Money market accounts	2,245,412	1,738,202
NOW accounts	2,808,637	2,092,413
Non-interest bearing deposits	2,341,459	1,554,253
Certificates of deposit	1,094,174	734,027
Total deposits	$ 9,837,829	$ 7,102,609
Weighted average interest rate, savings deposits	0.11%	0.14%
Weighted average interest rate, money market accounts	0.45%	0.79%
Weighted average interest rate, NOW accounts	0.42%	0.79%
Weighted average interest rate, non-interest bearing deposits	0.00%	0.00%
Weighted average interest rate, certificates of deposit	0.89%	1.72%

Deposits - Scheduled Maturities

Deposits - Scheduled Maturities of Certificates of Deposit (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Liabilities [Abstract]
Within one year	$ 886,018	$ 606,870
One to three years	153,114	81,987
Three to five years	54,544	44,243
Five years and thereafter	498	927
Certificates of deposit	$ 1,094,174	$ 734,027

Deposits - Interest Expense on

Deposits - Interest Expense on Deposits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Liabilities [Abstract]
Savings deposits	$ 1,689	$ 1,681	$ 1,923
NOW and money market accounts	22,762	29,542	20,450
Certificates of deposits	9,138	14,271	8,320
Total interest expense on deposits	$ 33,589	$ 45,494	$ 30,693

Borrowed Funds - Schedule of Bo

Borrowed Funds - Schedule of Borrowed Funds (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Securities sold under repurchase agreements	$ 99,936	$ 60,737
FHLB line of credit	25,000	298,000
FHLB advances	1,051,036	766,409
Borrowed funds	$ 1,175,972	$ 1,125,146

Borrowed Funds - Scheduled FHLB

Borrowed Funds - Scheduled FHLB Advances (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Due in one year or less	$ 754,481
Due after one year through two years	168,686
Due after two years through three years	58,650
Due after three years through four years	19,219
Thereafter	0
Total FHLB advances	$ 1,051,036	$ 766,409

Borrowed Funds - Scheduled Secu

Borrowed Funds - Scheduled Securities Sold Under Repurchase Agreements (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Due after three years through four years	$ 0
Due after four years through five years	0
Securities sold under repurchase agreements	99,936	$ 60,737
Securities Sold Under Repurchase Agreements
Debt Instrument [Line Items]
Due in one year or less	99,936
Due after one year through two years	0
Due after two years through three years	0
Thereafter	0
Securities sold under repurchase agreements	$ 99,936

Borrowed Funds - Debt Disclosur

Borrowed Funds - Debt Disclosure by Year (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Securities sold under repurchase agreements, maximum balance	$ 115,233,000	$ 96,914,000
FHLB line of credit, maximum balance	422,000,000	451,000,000
FHLB advances, maximum balance	1,177,083,000	1,190,006,000
Securities sold under repurchase agreements, average balance	86,194,000	71,234,000
FHLB line of credit, average balance	97,853,000	325,481,000
FHLB advances, average balance	$ 1,045,282,000	$ 939,916,000
Securities sold under repurchase agreements, weighted average interest rate	0.28%	0.49%
FHLB line of credit, weighted average interest rate	1.09%	2.40%
FHLB advances, weighted average interest rate	1.49%	2.11%

Borrowed Funds - Additional Inf

Borrowed Funds - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Borrowed funds	$ 16.6	$ 28	$ 28.5
Available-for-sale Securities
Debt Instrument [Line Items]
Securities sold under repurchase agreements	$ 105.1	$ 56.5

Subordinated Debentures (Detail

Subordinated Debentures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jul. 31, 2020	Jun. 28, 2007
Debt Instrument [Line Items]
Basis spread on variable rate	350.00%
Interest rate	5.75%
Subordinated debentures	$ 25,135	$ 0
Interest expense on subordinated debentures	512	$ 0	$ 0
SB One Bancorp
Debt Instrument [Line Items]
Subordinated debentures	$ 27,500
SB One Bancorp | Unsecured Debt
Debt Instrument [Line Items]
Interest rate	1.66%
SB One Bancorp | Unsecured Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate					144.00%
SB One Bancorp | Subordinated Debt
Debt Instrument [Line Items]
Outstanding balance				$ 27,900
Net fair value					$ 25,100
SB One Bancorp | Variable Rate Capital Trust Pass-Through Securities | Unsecured Debt
Debt Instrument [Line Items]
Outstanding balance					12,500
SB One Bancorp | Fixed-To-Floating Rate Subordinated Notes | Unsecured Debt
Debt Instrument [Line Items]
Outstanding balance					15,000
SB One Bancorp | Variable Rate Subordinated Deferrable Interest Debentures | Unsecured Debt
Debt Instrument [Line Items]
Outstanding balance					12,900
Variable rate subordinated deferrable interest debentures					12,900
SB One Bancorp | Common Securities In Consideration For Payment | Unsecured Debt
Debt Instrument [Line Items]
Outstanding balance					$ 387

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Detail)	Dec. 31, 2006	Dec. 31, 2002	Dec. 31, 2020USD ($)retirement_payment$ / sharesshares	Dec. 31, 2019USD ($)$ / sharesshares	Dec. 31, 2018USD ($)$ / shares
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan age attained for coverage			21 years
Service period for employees of coverage age, years			1 year
Vesting percentage of participants in pension plan			100.00%
Expected future employer contributions next year			$ 0
Requisite service period for deferred compensation arrangement	10 years	10 years	10 years
Discount rate			2.30%
Decrease (increase) in other comprehensive income from retirement plans			$ 6,334	$ 730	$ 3,000
Retirement plan for the board of directors to get maximum payments minimum age			72 years
Number of quarterly payments made to Board of Directors from Retirement Plan | retirement_payment			40
Benefit plans compensation expense			$ 1,250
Period in which undistributed balance of accrued benefit will be distributed			60 days
Shares purchased under ESOP | shares			4,769,464
Average price per share purchased under ESOP (in dollars per share) | $ / shares			$ 17.09
Outstanding loan principal			$ 25,600,000
Number of shares released under ESOP | shares			273,307	280,522
Unallocated ESOP shares held in suspense | shares			1,183,180
Fair market value of ESOP shares			$ 21,300,000
ESOP compensation expenses			2,400,000	$ 4,500,000	4,500,000
Estimated expense under the supplemental ESOP provision			$ 180,000	140,000	121,000
Number of shares authorized for issuance under stock award plan | shares			1,350,000
Unrecognized compensation cost relating go unvested restricted stock			$ 6,400,000
Weighted average period in which unrecognized compensation cost recognized years			1 year 8 months 12 days
Fair value of options vesting			$ 185,000	$ 193,000	$ 189,000
Projected share based compensation expense, 2019			139,000
Projected share based compensation expense, 2020			76,000
Projected share based compensation expense, 2021			11,000
Aggregate intrinsic value of stock options outstanding			$ 553,000
Weighted average fair value of options granted (in dollars per share) | $ / shares			$ 1.83	$ 4.57	$ 4.29
Restricted Stock
Defined Benefit Plan Disclosure [Line Items]
Share based payment award vesting period in years			3 years
Outstanding Stock Awards
Defined Benefit Plan Disclosure [Line Items]
Share based payment award compensation expense			$ 5,400,000	$ 6,700,000	$ 6,000,000
Outstanding Stock Awards | Share-based Compensation Award, Tranche Two
Defined Benefit Plan Disclosure [Line Items]
Share based payment award vesting period in years			3 years
Stock Options
Defined Benefit Plan Disclosure [Line Items]
Share based payment award vesting period in years			5 years
Share based payment award compensation expense			$ 190,000	181,000	190,000
Share based payment award expiration period in years			10 years
Performance Shares
Defined Benefit Plan Disclosure [Line Items]
Share based payment award vesting period in years			3 years
Board of Directors
Defined Benefit Plan Disclosure [Line Items]
Benefit plans compensation expense			$ 10,000	15,000	10,000
Other Liabilities
Defined Benefit Plan Disclosure [Line Items]
Retirement plan liabilities			1,800,000	1,900,000
Other Liabilities | Board of Directors
Defined Benefit Plan Disclosure [Line Items]
Retirement plan liabilities			127,000	130,000
Supplemental Executive Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Aggregate contributions to the benefit plan			80,000	85,000	82,000
Decrease (increase) in other comprehensive income from retirement plans			$ (89,000)	$ 187,000	$ 119,000
401(k) Plan
Defined Benefit Plan Disclosure [Line Items]
Percentage of matching contribution			25.00%	25.00%	25.00%
Percentage of contribution made by the participants in benefit plans			6.00%	6.00%	6.00%
Contribution to the Plan			$ 1,000,000	$ 981,000	$ 973,000
Estimated expense of supplemental ESOP provision			25,000	22,000	18,000
Pension
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, funded (unfunded) status of plan			$ 19,447,000	$ 16,874,000	$ 14,571,000
Discount rate			2.30%	3.10%	4.25%
Contribution to the Plan			$ 0	$ 0	$ 0
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, funded (unfunded) status of plan			$ (18,805,000)	$ (23,323,000)	$ (20,028,000)
Discount rate			2.30%	3.10%	4.25%
Contribution to the Plan			$ 627,000	$ 600,000	$ 590,000

Benefit Plans - Benefit Obligat

Benefit Plans - Benefit Obligation and Plan Asset Rollforward (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pension
Change in benefit obligation:
Benefit obligation at beginning of year	$ 33,058	$ 28,878	$ 31,970
Service cost	0	0	0
Interest cost	1,000	1,198	1,094
Actuarial loss	381	63	0
Benefits paid	(1,630)	(1,493)	(1,401)
Change in actuarial assumptions	2,361	4,412	(2,785)
Benefit obligation at end of year	35,170	33,058	28,878
Change in plan assets:
Fair value of plan assets at beginning of year	49,932	43,449	46,870
Actual return on plan assets	6,315	7,976	(2,020)
Employer contributions	0	0	0
Benefits paid	(1,630)	(1,493)	(1,401)
Fair value of plan assets at end of year	54,617	49,932	43,449
Funded status at end of year	19,447	16,874	14,571
Post-retirement
Change in benefit obligation:
Benefit obligation at beginning of year	23,323	20,028	22,757
Service cost	78	80	115
Interest cost	712	837	786
Actuarial loss	(169)	0	18
Benefits paid	(627)	(600)	(590)
Change in actuarial assumptions	(4,512)	2,978	(3,058)
Benefit obligation at end of year	18,805	23,323	20,028
Change in plan assets:
Fair value of plan assets at beginning of year	0	0	0
Actual return on plan assets	0	0	0
Employer contributions	627	600	590
Benefits paid	(627)	(600)	(590)
Fair value of plan assets at end of year	0	0	0
Funded status at end of year	$ (18,805)	$ (23,323)	$ (20,028)

Benefit Plans - Components of A

Benefit Plans - Components of Accumulated Other Comprehensive Loss (Gain) (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Pension
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service cost	$ 0	$ 0
Unrecognized net actuarial loss (gain)	9,026	10,346
Total accumulated other comprehensive loss (gain)	9,026	10,346
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service cost	0	0
Unrecognized net actuarial loss (gain)	(8,055)	(3,621)
Total accumulated other comprehensive loss (gain)	$ (8,055)	$ (3,621)

Benefit Plans - Net Periodic Be

Benefit Plans - Net Periodic Benefit Cost (Increase) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0
Interest cost	1,000	1,198	1,094
Return on plan assets	(2,949)	(2,562)	(2,769)
Amortization of net loss (gain)	696	1,015	795
Amortization of unrecognized prior service cost	0	0	0
Net periodic (benefit) increase cost	(1,253)	(349)	(880)
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Service cost	78	80	115
Interest cost	712	837	786
Return on plan assets	0	0	0
Amortization of net loss (gain)	(248)	(825)	(396)
Amortization of unrecognized prior service cost	0	0	0
Net periodic (benefit) increase cost	$ 542	$ 92	$ 505

Benefit Plans - Actuarial Assum

Benefit Plans - Actuarial Assumptions Used (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.30%
Pension
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.30%	3.10%	4.25%
Rate of compensation increase	0.00%	0.00%	0.00%
Expected return on plan assets	6.00%	6.00%	6.00%
Medical and life insurance benefits cost rate of increase	0.00%	0.00%	0.00%
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.30%	3.10%	4.25%
Rate of compensation increase	0.00%	0.00%	0.00%
Expected return on plan assets	0.00%	0.00%	0.00%
Medical and life insurance benefits cost rate of increase	6.00%	6.00%	6.00%

Benefit Plans - Effect of One-P

Benefit Plans - Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rate (Detail) - Post-retirement $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Defined Benefit Plan Disclosure [Line Items]
Effect on total service cost and interest cost, 1% increase	$ 140
Effect on post-retirement benefits obligation, 1% increase	3,900
Effect on total service cost and interest cost, 1% decrease	110
Effect on post-retirement benefits obligation, 1% decrease	$ 3,100

Benefit Plans - Estimated Futur

Benefit Plans - Estimated Future Benefit Payments (Detail) $ in Thousands	Dec. 31, 2020USD ($)
Pension
Defined Benefit Plan Disclosure [Line Items]
2021	$ 1,721
2022	1,740
2023	1,774
2024	1,779
2025	1,772
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
2021	780
2022	789
2023	821
2024	822
2025	$ 850

Benefit Plans - Weighted-Averag

Benefit Plans - Weighted-Average Asset Allocation of Pension Plan Assets (Detail) - Pension	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Equities	100.00%	100.00%
Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Equities	39.00%	37.00%
Foreign equities
Defined Benefit Plan Disclosure [Line Items]
Equities	12.00%	11.00%
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Equities	47.00%	50.00%
Real estate
Defined Benefit Plan Disclosure [Line Items]
Equities	2.00%	2.00%
Cash
Defined Benefit Plan Disclosure [Line Items]
Equities	0.00%	0.00%

Benefit Plans - Target Allocati

Benefit Plans - Target Allocation of Assets and Acceptable Ranges (Detail) - Pension	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Target allocation of assets	100.00%
Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of assets	37.00%
Domestic equities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Allowable range of assets	30.00%
Domestic equities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Allowable range of assets	41.00%
Foreign equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of assets	11.00%
Foreign equities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Allowable range of assets	5.00%
Foreign equities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Allowable range of assets	13.00%
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Target allocation of assets	50.00%
Fixed income | Minimum
Defined Benefit Plan Disclosure [Line Items]
Allowable range of assets	40.00%
Fixed income | Maximum
Defined Benefit Plan Disclosure [Line Items]
Allowable range of assets	65.00%
Real estate
Defined Benefit Plan Disclosure [Line Items]
Target allocation of assets	2.00%
Real estate | Minimum
Defined Benefit Plan Disclosure [Line Items]
Allowable range of assets	0.00%
Real estate | Maximum
Defined Benefit Plan Disclosure [Line Items]
Allowable range of assets	4.00%
Cash
Defined Benefit Plan Disclosure [Line Items]
Target allocation of assets	0.00%
Allowable range of assets	0.00%

Benefit Plans - Assets Measured

Benefit Plans - Assets Measured at Fair Value on Recurring Basis (Detail) - Pension - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Total investments	$ 54,617	$ 49,932	$ 43,449	$ 46,870
Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments	34,901	24,636
Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments	19,716	25,296
Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Group annuity contracts
Defined Benefit Plan Disclosure [Line Items]
Total investments	64	81
Group annuity contracts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Group annuity contracts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments	64	81
Group annuity contracts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Total investments	34,901	24,636
Mutual funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments	34,901	24,636
Mutual funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Mutual funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total investments	25,418	16,609
Fixed income | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments	25,418	16,609
Fixed income | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Fixed income | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
International equity
Defined Benefit Plan Disclosure [Line Items]
Total investments	6,581	5,535
International equity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments	6,581	5,535
International equity | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
International equity | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Large US equity
Defined Benefit Plan Disclosure [Line Items]
Total investments	1,677	1,496
Large US equity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments	1,677	1,496
Large US equity | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Large US equity | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Small/Mid U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Total investments	1,225	996
Small/Mid U.S. equity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments	1,225	996
Small/Mid U.S. equity | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Small/Mid U.S. equity | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Pooled Separate Accounts
Defined Benefit Plan Disclosure [Line Items]
Total investments	19,652	25,215
Pooled Separate Accounts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments	0	0
Pooled Separate Accounts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments	19,652	25,215
Pooled Separate Accounts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments	$ 0	$ 0

Benefit Plans - Status of Unves

Benefit Plans - Status of Unvested Stock Awards (Detail) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock awards, outstanding at beginning of year (in shares)	668,826	651,099	660,783
Granted (in shares)	429,122	291,034	296,411
Forfeited (in shares)	(59,938)	(46,914)	(56,296)
Vested (in shares)	(252,829)	(226,393)	(249,799)
Restricted stock awards, outstanding at the end of year (in shares)	785,181	668,826	651,099

Benefit Plans - Status of Unexe

Benefit Plans - Status of Unexercised Stock Options (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of stock options, outstanding at beginning of year (in shares)	499,201	470,979	507,656
Number of stock options, granted (in shares)	107,240	41,685	43,124
Number of stock options, exercised (in shares)	0	(13,463)	(79,801)
Number of stock options, forfeited (in shares)	(10,000)	0	0
Number of stock options, expired (in shares)	0	0	0
Number of stock options, outstanding at the end of year (in shares)	596,441	499,201	470,979
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted average exercise price, outstanding at beginning of year (in dollars per share)	$ 19.32	$ 18.36	$ 16.84
Weighted average exercise price, granted (in dollars per share)	20.62	27.25	25.58
Weighted average exercise price, exercised (in dollars per share)	0	10.35	12.61
Weighted average exercise price, forfeited (in dollars per share)	14.68	0	0
Weighted average exercise price, expired (in dollars per share)	0	0	0
Weighted average exercise price, outstanding at the end of year (in dollars per share)	$ 17.96	$ 19.32	$ 18.36

Benefit Plans - Stock Options O

Benefit Plans - Stock Options Outstanding (Detail)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
$14.50-15.23
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares) | shares	138,475
Average remaining contractual life	1 year 1 month 6 days
Options Outstanding, weighted average exercise price (in dollars per share)	$ 14.89
Number of options exercisable (in shares) | shares	138,475
Options exercisable, weighted average exercise price (in dollars per share)	$ 14.89
$14.50-15.23 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options exercisable, weighted average exercise price (in dollars per share)	14.50
$14.50-15.23 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options exercisable, weighted average exercise price (in dollars per share)	$ 15.23
$16.38-27.25
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding (in shares) | shares	457,966
Average remaining contractual life	6 years 1 month 6 days
Options Outstanding, weighted average exercise price (in dollars per share)	$ 20.83
Number of options exercisable (in shares) | shares	279,901
Options exercisable, weighted average exercise price (in dollars per share)	$ 19.50
$16.38-27.25 | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options exercisable, weighted average exercise price (in dollars per share)	16.38
$16.38-27.25 | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options exercisable, weighted average exercise price (in dollars per share)	$ 27.25

Benefit Plans - Weighted Averag

Benefit Plans - Weighted Average Assumptions of Fair Value Option Grants (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Expected dividend yield	4.46%	3.38%	3.13%
Expected volatility	20.33%	22.01%	20.65%
Risk-free interest rate	0.75%	2.53%	2.65%
Expected option life	8 years	8 years	8 years

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
Accumulated other comprehensive income, deferred tax (benefit) expense	$ 5,200	$ 6,600	$ (2,400)
Accumulated other comprehensive income, a deferred tax expense (benefit)	1,400	$ (463)	$ 379
Retained earnings amount for which no provision for income tax has been made	51,800
Unrecognized tax liability	13,400
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards, limitations on use	197
Beacon Trust
Operating Loss Carryforwards [Line Items]
Unused capital loss carryforwards	$ 1,300

Income Taxes - Current and Defe

Income Taxes - Current and Deferred Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal									$ 27,143	$ 22,427	$ 41,578
State									11,389	10,354	2,493
Total current									38,532	32,781	44,071
Deferred:
Federal									(5,908)	1,650	(17,302)
State									(2,021)	24	(1,239)
Total deferred									(7,929)	1,674	(18,541)
Income tax expense (benefit)	$ 12,346	$ 9,285	$ 3,715	$ 5,257	$ 8,026	$ 9,938	$ 8,802	$ 7,689	$ 30,603	$ 34,455	$ 25,530

Income Taxes - Reconciliation F

Income Taxes - Reconciliation From Statutory Rate to Effective Tax (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Tax expense at statutory rates									$ 26,786	$ 30,889	$ 30,223
Increase (decrease) in taxes resulting from:
State tax, net of federal income tax benefit									7,400	8,197	1,002
Tax-exempt interest income									(2,609)	(3,082)	(2,839)
Bank-owned life insurance									(1,363)	(1,322)	(1,158)
Other, net									389	(227)	(1,698)
Income tax expense (benefit)	$ 12,346	$ 9,285	$ 3,715	$ 5,257	$ 8,026	$ 9,938	$ 8,802	$ 7,689	$ 30,603	$ 34,455	$ 25,530

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Allowance for credit losses on loans	$ 26,156	$ 14,313
Allowance for credit loss OBS	1,295	0
Post-retirement benefit	6,924	6,946
Deferred compensation	839	1,175
Contingent Consideration	714	0
Purchase accounting adjustments	3,099	1,629
Depreciation	331	750
SERP	733	688
ESOP	1,377	1,606
Stock-based compensation	4,481	4,747
Payroll Protection Program fees	2,268	0
Non-accrual interest	225	417
Federal Net Operating Loss ("NOL")	280	321
Net unrealized loss on hedging activities	1,717	0
Pension liability adjustments	376	1,821
Other	925	1,223
Total gross deferred tax assets	51,740	35,636
Deferred tax liabilities:
Pension expense	7,340	7,017
Deferred loan costs	4,532	5,064
Investment securities, principally due to accretion of discounts	79	70
Intangibles	1,723	1,393
Originated mortgage servicing rights	160	140
Unrealized gain on available for sale debt securities	7,802	3,038
Net unrealized gain on hedging activities	0	114
Total gross deferred tax liabilities	21,636	16,836
Net deferred tax asset	$ 30,104	$ 18,800

Regulatory Capital Requiremen_3

Regulatory Capital Requirements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer, percentage of common equity Tier 1 capital to risk-weighted assets	2.50%
FDIC
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage capital, minimum capital adequacy requirements, Ratio	0.0400	0.0400
Common equity Tier 1 capital to risk-based assets ratio	4.50%	4.50%
Tier 1 risk-based capital, minimum capital adequacy requirements, Ratio	0.060	0.0600
Total risk-based capital, minimum capital adequacy requirements, Ratio	0.0800	0.0800
Tier 1 leverage capital, To be well-capitalized under prompt corrective action provisions, Ratio	0.0500	0.0500
Common equity Tier 1 risk-based capital ratio	6.50%	6.50%
Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Ratio	0.0800	0.0800
Total risk-based capital, to be well-capitalized under prompt corrective action provisions, Ratio	0.1000	0.1000

Regulatory Capital Requiremen_4

Regulatory Capital Requirements - Actual Capital Amounts and Ratios and FDIC Minimum Capital Adequacy Requirements (Detail) $ in Thousands	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
FRB
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage capital, Actual Amount	$ 1,157,505	$ 973,214
Tier 1 leverage capital, Actual Ratio	0.0930	0.1034
Tier 1 leverage capital, minimum capital adequacy requirements, Amount	$ 497,794	$ 376,484
Tier 1 leverage capital, minimum capital adequacy requirements, Ratio	0.0400	0.0400
Tier 1 leverage capital, minimum capital adequacy requirements with capital conservation buffer, Amount	$ 497,794	$ 376,484
Tier 1 leverage capital, minimum capital adequacy requirements with capital conservation buffer, Ratio	4.00%	4.00%
Tier 1 leverage capital, To be well-capitalized under prompt corrective action provisions, Amount	$ 622,243	$ 470,605
Tier 1 leverage capital, To be well-capitalized under prompt corrective action provisions, Ratio	0.0500	0.0500
Common equity Tier 1 risk-based capital, Actual Amount	$ 1,144,618	$ 973,214
Common equity Tier 1 risk-based capital, Actual Ratio	10.46%	12.74%
Common equity Tier 1 risk-based capital, minimum capital adequacy requirement, Amount	$ 492,359	$ 343,756
Common equity Tier 1 risk-based capital, minimum capital adequacy requirement, Ratio	4.50%	4.50%
Common equity Tier 1 risk-based capital, minimum capital adequacy requirement with capital conversation buffer, Amount	$ 765,892	$ 534,732
Common equity Tier 1 risk-based capital, minimum capital adequacy requirement with capital conversation buffer, Ratio	7.00%	7.00%
Common equity Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Amount	$ 711,185	$ 496,537
Common equity Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Ratio	6.50%	6.50%
Tier 1 risk-based capital, Actual Amount	$ 1,157,505	$ 973,214
Tier 1 risk-based capital, Actual Ratio	0.1058	0.1274
Tier 1 risk-based capital, minimum capital adequacy requirements, Amount	$ 656,478	$ 458,342
Tier 1 risk-based capital, minimum capital adequacy requirements, Ratio	0.0600	0.0600
Tier 1 risk-based capital, minimum capital adequacy requirements with capital conversation buffer, Amount	$ 930,011	$ 649,317
Tier 1 risk-based capital, minimum capital adequacy requirements with capital conversation buffer, Ratio	8.50%	8.50%
Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Amount	$ 875,305	$ 611,122
Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Ratio	0.0800	0.0800
Total risk-based capital, Actual Amount	$ 1,306,494	$ 1,028,879
Total risk-based capital, Actual Ratio	0.1194	0.1347
Total risk-based capital, minimum capital adequacy requirements, Amount	$ 875,305	$ 611,122
Total risk-based capital, minimum capital adequacy requirements, Ratio	0.0800	0.0800
Total risk-based capital, minimum capital adequacy requirements with capital conversation buffer, Amount	$ 1,148,837	$ 802,098
Total risk-based capital, minimum capital adequacy requirements with capital conversation buffer, Ratio	10.50%	10.50%
Total risk-based capital, to be well-capitalized under prompt corrective action provisions, Amount	$ 1,094,131	$ 763,903
Total risk-based capital, to be well-capitalized under prompt corrective action provisions, Ratio	0.1000	0.1000
FDIC
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage capital, Actual Amount	$ 1,086,589	$ 923,471
Tier 1 leverage capital, Actual Ratio	0.0875	0.0981
Tier 1 leverage capital, minimum capital adequacy requirements, Amount	$ 496,908	$ 376,449
Tier 1 leverage capital, minimum capital adequacy requirements, Ratio	0.0400	0.0400
Tier 1 leverage capital, minimum capital adequacy requirements with capital conservation buffer, Amount	$ 496,908	$ 376,449
Tier 1 leverage capital, minimum capital adequacy requirements with capital conservation buffer, Ratio	4.00%	4.00%
Tier 1 leverage capital, To be well-capitalized under prompt corrective action provisions, Amount	$ 621,135	$ 470,562
Tier 1 leverage capital, To be well-capitalized under prompt corrective action provisions, Ratio	0.0500	0.0500
Common equity Tier 1 risk-based capital, Actual Amount	$ 1,086,589	$ 923,471
Common equity Tier 1 risk-based capital, Actual Ratio	9.96%	12.09%
Common equity Tier 1 risk-based capital, minimum capital adequacy requirement, Amount	$ 491,135	$ 343,716
Common equity Tier 1 risk-based capital, minimum capital adequacy requirement, Ratio	4.50%	4.50%
Common equity Tier 1 risk-based capital, minimum capital adequacy requirement with capital conversation buffer, Amount	$ 763,988	$ 534,670
Common equity Tier 1 risk-based capital, minimum capital adequacy requirement with capital conversation buffer, Ratio	7.00%	7.00%
Common equity Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Amount	$ 709,417	$ 496,479
Common equity Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Ratio	6.50%	6.50%
Tier 1 risk-based capital, Actual Amount	$ 1,086,589	$ 923,471
Tier 1 risk-based capital, Actual Ratio	0.0996	0.1209
Tier 1 risk-based capital, minimum capital adequacy requirements, Amount	$ 654,847	$ 458,288
Tier 1 risk-based capital, minimum capital adequacy requirements, Ratio	0.060	0.0600
Tier 1 risk-based capital, minimum capital adequacy requirements with capital conversation buffer, Amount	$ 927,700	$ 649,242
Tier 1 risk-based capital, minimum capital adequacy requirements with capital conversation buffer, Ratio	8.50%	8.50%
Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Amount	$ 873,129	$ 611,051
Tier 1 risk-based capital, To be well-capitalized under prompt corrective action provisions, Ratio	0.0800	0.0800
Total risk-based capital, Actual Amount	$ 1,223,469	$ 979,136
Total risk-based capital, Actual Ratio	0.1121	0.1282
Total risk-based capital, minimum capital adequacy requirements, Amount	$ 873,129	$ 611,051
Total risk-based capital, minimum capital adequacy requirements, Ratio	0.0800	0.0800
Total risk-based capital, minimum capital adequacy requirements with capital conversation buffer, Amount	$ 1,145,982	$ 802,004
Total risk-based capital, minimum capital adequacy requirements with capital conversation buffer, Ratio	10.50%	10.50%
Total risk-based capital, to be well-capitalized under prompt corrective action provisions, Amount	$ 1,091,411	$ 763,814
Total risk-based capital, to be well-capitalized under prompt corrective action provisions, Ratio	0.1000	0.1000

Allowance for Credit Losses o_3

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Dec. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Provision for credit losses for off-balance sheet credit exposure	$ 0	$ 5,000
Retained earnings		718,090	$ 695,273
Credit loss expense for off-balance sheet credit exposures		$ 29,700
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
Retained earnings	8,300
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
Retained earnings	8,300
Credit loss expense for off-balance sheet credit exposures	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 - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Cash and due from banks	$ 404,355	$ 131,555
Cash Reserves Required by Banking Regulations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Cash and due from banks	$ 114,300	$ 77,000
Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated costs	5.00%
Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated costs	10.00%

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities at Fair Values (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 1,105,489	$ 976,919
Equity securities, at fair value	971	825
Foreclosed assets	4,475	2,715
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, at fair value	971
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, at fair value	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, at fair value	0
Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,105,489	976,919
Equity securities, at fair value	971	825
Derivative assets	101,079	39,305
Assets, fair value disclosure	1,207,539	1,017,049
Derivative liabilities	109,148	39,356
Measured on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,009	0
Equity securities, at fair value	971	825
Derivative assets	0	0
Assets, fair value disclosure	1,980	825
Derivative liabilities	0	0
Measured on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,104,480	976,919
Equity securities, at fair value	0	0
Derivative assets	101,079	39,305
Assets, fair value disclosure	1,205,559	1,016,224
Derivative liabilities	109,148	39,356
Measured on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Equity securities, at fair value	0	0
Derivative assets		0
Assets, fair value disclosure	0	0
Derivative liabilities	0	0
Measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	30,725	23,118
Loans measured for impairment based on the fair value of the underlying collateral	26,250	20,403
Foreclosed assets	4,475	2,715
Measured on a non-recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	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 | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	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 | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	30,725	23,118
Loans measured for impairment based on the fair value of the underlying collateral	26,250	20,403
Foreclosed assets	4,475	2,715
Agency obligations | Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,009
Agency obligations | Measured on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,009
Agency obligations | Measured on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0
Agency obligations | Measured on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	938,413	947,430
Mortgage-backed securities | Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	938,413	947,430
Mortgage-backed securities | Measured on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Mortgage-backed securities | Measured on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	938,413	947,430
Mortgage-backed securities | Measured on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	53,830
Asset-backed securities | Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	53,830
Asset-backed securities | Measured on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	53,830
State and municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	71,258	4,079
State and municipal obligations | Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	71,258	4,079
State and municipal obligations | Measured on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
State and municipal obligations | Measured on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	71,258	4,079
State and municipal obligations | Measured on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	40,979	25,410
Corporate obligations | Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	40,979	25,410
Corporate obligations | Measured on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Corporate obligations | Measured on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	40,979	25,410
Corporate obligations | Measured on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 0	$ 0

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Financial Instruments, Carrying and Fair Values (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	$ 1,105,489	$ 976,919
Investment securities held to maturity	450,965	453,629
FHLBNY stock	59,489	57,298
Equity securities, at fair value	971	825
Loans, net of allowance for credit losses	9,721,424	7,277,360
Certificates of deposit	1,094,174	734,027
Total deposits	9,837,829	7,102,609
Borrowings	1,175,972	1,125,146
Subordinated debentures	25,135	0
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
FHLBNY stock		57,298
Equity securities, at fair value	971
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
FHLBNY stock		0
Equity securities, at fair value	0
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
FHLBNY stock		0
Equity securities, at fair value	0
Mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	938,413	947,430
Investment securities held to maturity	62
Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	53,830
State and municipal obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	71,258	4,079
Corporate obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	40,979	25,410
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	532,353	186,748
Available for sale debt securities, at fair value	1,105,489	976,919
Investment securities held to maturity	450,965	453,629
FHLBNY stock	59,489	57,298
Equity securities, at fair value	971	825
Loans, net of allowance for credit losses	9,721,424	7,277,360
Derivative assets	101,079	39,305
Deposits other than certificates of deposits	8,743,655	6,368,582
Certificates of deposit	1,094,174	734,027
Total deposits	9,837,829	7,102,609
Borrowings	1,175,972	1,125,146
Subordinated debentures	25,135
Derivative liabilities	109,148	39,356
Carrying Value | Agency obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	1,009
Investment securities held to maturity	7,600	6,599
Carrying Value | Mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	938,413	947,430
Investment securities held to maturity	62	118
Carrying Value | Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	53,830
Carrying Value | State and municipal obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	71,258	4,079
Investment securities held to maturity	433,589	437,074
Carrying Value | Corporate obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	40,979	25,410
Investment securities held to maturity	9,714	9,838
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	532,353	186,748
Available for sale debt securities, at fair value	1,105,489	976,919
Investment securities held to maturity	472,451	467,966
FHLBNY stock	59,489	57,298
Equity securities, at fair value	971	825
Loans, net of allowance for credit losses	9,969,330	7,296,744
Derivative assets	101,079	39,305
Deposits other than certificates of deposits	8,743,655	6,368,582
Certificates of deposit	1,097,993	734,047
Total deposits	9,841,648	7,102,629
Borrowings	1,193,024	1,127,569
Subordinated debentures	24,375
Derivative liabilities	109,148	39,356
Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	532,353	186,748
Available for sale debt securities, at fair value	1,009	0
Investment securities held to maturity	7,601	6,601
FHLBNY stock	59,489
Equity securities, at fair value		825
Loans, net of allowance for credit losses	0	0
Derivative assets	0	0
Deposits other than certificates of deposits	8,743,655	6,368,582
Certificates of deposit	0	0
Total deposits	8,743,655	6,368,582
Borrowings	0	0
Derivative liabilities	0	0
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0	0
Available for sale debt securities, at fair value	1,104,480	976,919
Investment securities held to maturity	464,850	461,365
FHLBNY stock	0
Equity securities, at fair value		0
Loans, net of allowance for credit losses	0	0
Derivative assets	101,079	39,305
Deposits other than certificates of deposits	0	0
Certificates of deposit	1,097,993	734,047
Total deposits	1,097,993	734,047
Borrowings	1,193,024	1,127,569
Subordinated debentures	24,375
Derivative liabilities	109,148	39,356
Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0	0
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity	0	0
FHLBNY stock	0
Equity securities, at fair value		0
Loans, net of allowance for credit losses	9,969,330	7,296,744
Derivative assets	0	0
Deposits other than certificates of deposits	0	0
Certificates of deposit	0	0
Total deposits	0	0
Borrowings	0	0
Derivative liabilities	0	0
Fair Value | Agency obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	1,009
Investment securities held to maturity	7,601	6,601
Fair Value | Agency obligations | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	1,009
Investment securities held to maturity	7,601	6,601
Fair Value | Agency obligations | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	0
Investment securities held to maturity	0	0
Fair Value | Agency obligations | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	0
Investment securities held to maturity	0	0
Fair Value | Mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	938,413	947,430
Investment securities held to maturity	64	122
Fair Value | Mortgage-backed securities | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity	0	0
Fair Value | Mortgage-backed securities | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	938,413	947,430
Investment securities held to maturity	64	122
Fair Value | Mortgage-backed securities | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity	0	0
Fair Value | Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	53,830
Fair Value | Asset-backed securities | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	53,830
Fair Value | State and municipal obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	71,258	4,079
Investment securities held to maturity	454,973	451,353
Fair Value | State and municipal obligations | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity	0	0
Fair Value | State and municipal obligations | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	71,258	4,079
Investment securities held to maturity	454,973	451,353
Fair Value | State and municipal obligations | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity	0	0
Fair Value | Corporate obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	40,979	25,410
Investment securities held to maturity	9,813	9,890
Fair Value | Corporate obligations | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity	0	0
Fair Value | Corporate obligations | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	40,979	25,410
Investment securities held to maturity	9,813	9,890
Fair Value | Corporate obligations | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale debt securities, at fair value	0	0
Investment securities held to maturity	$ 0	$ 0

Selected Quarterly Financial _3

Selected Quarterly Financial Data (Unaudited) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 100,150	$ 93,453	$ 81,537	$ 88,169	$ 90,385	$ 93,026	$ 95,648	$ 92,411	$ 363,309	$ 371,470	$ 359,829
Interest expense	11,412	11,468	11,709	16,148	17,502	19,498	19,093	17,404	50,739	73,497	59,153
Net interest income	88,738	81,985	69,828	72,021	72,883	73,528	76,555	75,007	312,570	297,973	300,676
Provision for credit losses	(2,298)	6,400	10,900	14,717	2,900	500	9,500	200	29,719	13,100	23,700
Net interest income after provision for credit losses	91,036	75,585	58,928	57,304	69,983	73,028	67,055	74,807	282,851	284,873	276,976
Non-interest income	20,448	20,626	14,365	16,991	17,725	18,047	15,834	12,188	72,431	63,794	58,676
Non-interest expense	58,571	59,783	55,267	54,107	53,731	49,738	49,694	48,416	227,728	201,579	191,735
Income before income tax expense	52,913	36,428	18,026	20,188	33,977	41,337	33,195	38,579	127,554	147,088	143,917
Income tax expense	12,346	9,285	3,715	5,257	8,026	9,938	8,802	7,689	30,603	34,455	25,530
Net income	$ 40,567	$ 27,143	$ 14,311	$ 14,931	$ 25,951	$ 31,399	$ 24,393	$ 30,890	$ 96,951	$ 112,633	$ 118,387
Basic earnings per share (in dollars per share)	$ 0.53	$ 0.37	$ 0.22	$ 0.23	$ 0.40	$ 0.49	$ 0.38	$ 0.48	$ 1.39	$ 1.74	$ 1.82
Diluted earnings per share (in dollars per share)	$ 0.53	$ 0.37	$ 0.22	$ 0.23	$ 0.40	$ 0.49	$ 0.38	$ 0.48	$ 1.39	$ 1.74	$ 1.82

Earnings Per Share (Detail)

Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net income	$ 40,567	$ 27,143	$ 14,311	$ 14,931	$ 25,951	$ 31,399	$ 24,393	$ 30,890	$ 96,951	$ 112,633	$ 118,387
Basic weighted average common shares outstanding (in shares)									69,548,499	64,604,224	64,942,886
Dilutive shares (in shares)									77,459	130,367	160,211
Diluted weighted average common shares outstanding (in shares)									69,625,958	64,734,591	65,103,097
Earnings per share:
Basic (in dollars per share)	$ 0.53	$ 0.37	$ 0.22	$ 0.23	$ 0.40	$ 0.49	$ 0.38	$ 0.48	$ 1.39	$ 1.74	$ 1.82
Diluted (in dollars per share)	$ 0.53	$ 0.37	$ 0.22	$ 0.23	$ 0.40	$ 0.49	$ 0.38	$ 0.48	$ 1.39	$ 1.74	$ 1.82
Anti-dilutive stock options and awards excluded from computation of earnings per share (in shares)									999,718	646,457	443,748

Parent-only Financial Informa_3

Parent-only Financial Information - Financial Condition (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 404,355	$ 131,555
Available for sale debt securities, at fair value	1,105,489	976,919
Other assets	221,360	136,291
Total assets	12,919,741	9,808,578
Liabilities and Stockholders’ Equity
Other liabilities	226,710	140,179
Subordinated debentures	25,135	0
Total stockholders’ equity	1,619,797	1,413,840	$ 1,358,980	$ 1,298,661
Total liabilities and stockholders’ equity	12,919,741	9,808,578
Provident Financial Services, Inc.
Assets
Cash and due from banks	10,634	29,723
Available for sale debt securities, at fair value	971	825
Investment in subsidiary	1,561,769	1,364,097
ESOP loan	25,555	31,113
Other assets	(622)	37
Total assets	1,640,654	1,425,795
Liabilities and Stockholders’ Equity
Due to subsidiary—SAP	0	11,741
Other liabilities	(4,279)	214
Subordinated debentures	25,135	0
Total stockholders’ equity	1,619,798	1,413,840
Total liabilities and stockholders’ equity	$ 1,640,654	$ 1,425,795

Parent-only Financial Informa_4

Parent-only Financial Information - Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Total interest income	$ 100,150	$ 93,453	$ 81,537	$ 88,169	$ 90,385	$ 93,026	$ 95,648	$ 92,411	$ 363,309	$ 371,470	$ 359,829
Subordinated debentures									512	0	0
Non-interest expense	58,571	59,783	55,267	54,107	53,731	49,738	49,694	48,416	227,728	201,579	191,735
Income tax expense	12,346	9,285	3,715	5,257	8,026	9,938	8,802	7,689	30,603	34,455	25,530
Net income	$ 40,567	$ 27,143	$ 14,311	$ 14,931	$ 25,951	$ 31,399	$ 24,393	$ 30,890	96,951	112,633	118,387
Provident Financial Services, Inc.
Condensed Financial Statements, Captions [Line Items]
Dividends from subsidiary									65,823	72,809	53,604
Interest income									1,245	1,470	1,657
Investment gain									147	162	2,294
Total interest income									67,215	74,441	57,555
Subordinated debentures									512	0	0
Non-interest expense									1,196	1,192	1,049
Total expense									1,708	1,192	1,049
Income before income tax expense									65,507	73,249	56,506
Income tax expense									0	127	692
Income before undistributed net income of subsidiary									65,507	73,122	55,814
Earnings in excess of dividends (equity in undistributed net income) of subsidiary									31,444	39,511	62,573
Net income									$ 96,951	$ 112,633	$ 118,387

Parent-only Financial Informa_5

Parent-only Financial Information - Statements of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 40,567	$ 27,143	$ 14,311	$ 14,931	$ 25,951	$ 31,399	$ 24,393	$ 30,890	$ 96,951	$ 112,633	$ 118,387
Adjustments to reconcile net income to net cash provided by operating activities
ESOP expense									2,401	4,533	4,516
SAP allocation									5,330	6,671	6,046
Stock option allocation									189	181	190
Decrease (increase) in other assets									(106,811)	(46,237)	5,266
(Decrease) increase in other liabilities									59,883	25,312	4,817
Net cash provided by operating activities									106,911	136,925	155,719
Cash flows from investing activities:
Net cash provided by (used in) investing activities									(507,984)	42,867	46,705
Cash flows from financing activities:
Purchases of treasury stock									(21,161)	(19,867)	(13,172)
Purchase of employee restricted shares to fund statutory tax withholding									(969)	(1,985)	(1,896)
Cash dividends paid									(65,823)	(72,809)	(53,604)
Shares issued dividend reinvestment plan									451	2,230	1,709
Stock options exercised									0	139	1,007
Net cash (used in) provided by financing activities									746,678	(135,705)	(250,597)
Net increase (decrease) in cash and cash equivalents									345,605	44,087	(48,173)
Cash and cash equivalents at beginning of period				186,748				142,661	186,748	142,661	190,834
Cash and cash equivalents at end of period	532,353				186,748				532,353	186,748	142,661
Provident Financial Services, Inc.
Cash flows from operating activities:
Net income									96,951	112,633	118,387
Adjustments to reconcile net income to net cash provided by operating activities
Earnings in excess of dividends (equity in undistributed net income) of subsidiary									(31,444)	(39,511)	(62,573)
ESOP expense									2,401	4,533	4,516
SAP allocation									5,433	6,671	6,046
Stock option allocation									190	181	190
Increase in due to subsidiary—SAP									54,088	3,745	3,577
Decrease (increase) in other assets									(138,360)	21,285	(18,598)
(Decrease) increase in other liabilities									(4,493)	(734)	396
Net cash provided by operating activities									(15,234)	108,803	51,941
Cash flows from investing activities:
Cash received, net of cash consideration paid for acquisition									78,089	0	0
Net decrease in ESOP loan									5,558	5,643	4,663
Net cash provided by (used in) investing activities									83,647	5,643	4,663
Cash flows from financing activities:
Purchases of treasury stock									(21,161)	(19,867)	(13,172)
Purchase of employee restricted shares to fund statutory tax withholding									(969)	(1,985)	(1,896)
Cash dividends paid									(65,823)	(72,809)	(53,604)
Shares issued dividend reinvestment plan									451	2,230	1,709
Stock options exercised									0	139	1,007
Net cash (used in) provided by financing activities									(87,502)	(92,292)	(65,956)
Net increase (decrease) in cash and cash equivalents									(19,089)	22,154	(9,352)
Cash and cash equivalents at beginning of period				$ 29,723				$ 7,569	29,723	7,569	16,921
Cash and cash equivalents at end of period	$ 10,634				$ 29,723				$ 10,634	$ 29,723	$ 7,569

Other Comprehensive Income (L_3

Other Comprehensive Income (Loss) - Schedule of Components of OCI (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Unrealized losses on available for sale debt securities:
Net gains (losses) arising during the period	$ 20,134	$ 24,987	$ (8,425)
Reclassification adjustment for gains included in net income	0	0	0
Total	20,134	24,987	(8,425)
Unrealized (losses) gains on derivatives (cash flow hedges)	(7,099)	(780)
Unrealized (losses) gains on derivatives (cash flow hedges)			304
Amortization related to post-retirement obligations	5,604	(2,176)	1,678
Total other comprehensive income (loss)	18,639	22,031	(6,443)
Unrealized losses on available for sale debt securities:
Net gains (losses) arising during the period	(5,190)	(6,636)	2,296
Reclassification adjustment for gains included in net income	0	0	0
Total	(5,190)	(6,636)	2,296
Unrealized (losses) gains on derivatives (cash flow hedges)	1,830	201
Unrealized (losses) gains on derivatives (cash flow hedges)			(83)
Amortization related to post-retirement obligations	(1,445)	561	(457)
Total other comprehensive income (loss)	(4,805)	(5,874)	1,756
Unrealized losses on available for sale debt securities:
Net gains (losses) arising during the period	14,944	18,351	(6,129)
Reclassification adjustment for gains included in net income	0	0	0
Total	14,944	18,351	(6,129)
Unrealized (losses) gains on derivatives (cash flow hedges)	(5,269)	(579)
Unrealized (losses) gains on derivatives (cash flow hedges)			221
Amortization related to post-retirement obligations	4,159	(1,615)	1,221
Total other comprehensive income (loss)	$ 13,834	$ 16,157	$ (4,687)

Other Comprehensive Income (L_4

Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance at the beginning of the period	$ 1,413,840	$ 1,358,980	$ 1,298,661
Current period change in other comprehensive income (loss)	13,834	16,157	(4,687)
Balance at the end of the period	1,619,797	1,413,840	1,358,980
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance at the beginning of the period	(8,311)	4,350	0
Balance at the end of the period		(8,311)	4,350
Unrealized Losses on Available for Sale Debt Securities
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance at the beginning of the period	8,746	(9,605)
Current period change in other comprehensive income (loss)	14,944	18,351
Balance at the end of the period	23,690	8,746	(9,605)
Post-Retirement Obligations
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance at the beginning of the period	(5,240)	(3,625)
Current period change in other comprehensive income (loss)	4,159	(1,615)
Balance at the end of the period	(1,081)	(5,240)	(3,625)
Unrealized gains (losses) on Derivatives (cash flow hedges)
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance at the beginning of the period	315	894
Current period change in other comprehensive income (loss)	(5,269)	(579)
Balance at the end of the period	(4,954)	315	894
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance at the beginning of the period	3,821	(12,336)	(7,465)
Current period change in other comprehensive income (loss)	13,834	16,157	(4,687)
Balance at the end of the period	$ 17,655	3,821	(12,336)
Accumulated Other Comprehensive Loss | Cumulative Effect, Period of Adoption, Adjustment
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance at the beginning of the period		$ 0	(184)
Balance at the end of the period			$ 0

Other Comprehensive Income (L_5

Other Comprehensive Income (Loss) - Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net gain on securities transactions									$ 81	$ 72	$ 2,221
Income tax expense	$ 12,346	$ 9,285	$ 3,715	$ 5,257	$ 8,026	$ 9,938	$ 8,802	$ 7,689	30,603	34,455	25,530
Net of tax	$ (40,567)	$ (27,143)	$ (14,311)	$ (14,931)	$ (25,951)	$ (31,399)	$ (24,393)	$ (30,890)	(96,951)	(112,633)	(118,387)
Compensation and employee benefits									130,868	116,849	111,496
Securities available for sale
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net gain on securities transactions									0	0	0
Income tax expense									0	0	0
Net of tax									0	0	0
Post-retirement obligations - Amortization of actuarial losses | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income tax expense									(115)	(49)	(109)
Net of tax									333	140	290
Compensation and employee benefits									$ 448	$ 189	$ 399

Derivative and Hedging Activi_3

Derivative and Hedging Activities - Fair Value of Derivatives (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Derivatives Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 107,749	$ 38,877
Liability Derivatives	109,148	39,356
Derivatives Not Designated as Hedging Instrument | Other Assets | Interest Rate Products
Derivatives, Fair Value [Line Items]
Asset Derivatives	107,652	38,830
Derivatives Not Designated as Hedging Instrument | Other Assets | Credit Risk Contract
Derivatives, Fair Value [Line Items]
Asset Derivatives	97	47
Derivatives Not Designated as Hedging Instrument | Other Liabilities | Interest Rate Products
Derivatives, Fair Value [Line Items]
Liability Derivatives	109,148	39,356
Derivatives Not Designated as Hedging Instrument | Other Liabilities | Credit Risk Contract
Derivatives, Fair Value [Line Items]
Liability Derivatives	0	0
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives	(6,671)	428
Liability Derivatives	0	0
Designated as Hedging Instrument | Other Assets | Interest Rate Products
Derivatives, Fair Value [Line Items]
Asset Derivatives	(6,671)	428
Designated as Hedging Instrument | Other Liabilities | Interest Rate Products
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 0	$ 0

Derivative and Hedging Activi_4

Derivative and Hedging Activities - Gains and Losses on Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivatives Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ (920)	$ (117)	$ (351)
Derivatives Not Designated as Hedging Instrument | Interest Rate Products | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	(950)	(64)	(414)
Derivatives Not Designated as Hedging Instrument | Credit Risk Contract | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	30	(53)	63
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	1,741	(624)	312
Designated as Hedging Instrument | Interest Rate Products | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ 1,741	$ (624)	$ 312

Derivative and Hedging Activi_5

Derivative and Hedging Activities - Additional Information (Details)	12 Months Ended
	Dec. 31, 2020USD ($)counterpartyinstrument	Dec. 31, 2019USD ($)instrument
Derivative [Line Items]
Amounts reclassified from AOCI to Income	$ 3,700,000
Number of counterparties | counterparty	4
Derivatives Not Designated as Hedging Instrument
Derivative [Line Items]
Credit derivatives, fair value	$ 97,000	$ 47,323
Derivative liabilities	116,200,000
Collateral against obligations	$ 113,600,000
Designated as Hedging Instrument
Derivative [Line Items]
Number of derivative liability instruments held | instrument	14
Aggregate notional amount for derivative liability	$ 600,000,000
Interest Rate Products | Derivatives Not Designated as Hedging Instrument
Derivative [Line Items]
Number of derivative instruments held | instrument	172	92
Aggregate notional amount	$ 2,630,000,000	$ 1,610,000,000
Credit Risk Contract | Derivatives Not Designated as Hedging Instrument
Derivative [Line Items]
Number of derivative instruments held | instrument	13
Aggregate notional amount	$ 121,700,000	$ 106,000,000
Amount of collateral	$ 650,000

Revenue Recognition (Summary of

Revenue Recognition (Summary of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Percentage of total revenue excluded from adoption of 606									83.00%	85.00%	86.00%
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									$ 45,532	$ 41,354	$ 37,284
Other income									26,899	22,440	21,392
Total non-interest income	$ 20,448	$ 20,626	$ 14,365	$ 16,991	$ 17,725	$ 18,047	$ 15,834	$ 12,188	72,431	63,794	58,676
Wealth management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									25,733	22,503	17,957
Insurance agency income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									3,513	0	0
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									10,312	13,117	13,330
Debit card and ATM fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									5,974	5,734	5,997
Banking service charges and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									$ 16,286	$ 18,851	$ 19,327

Leases - Additional Information

Leases - Additional Information (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Present value of net future minimum lease payments		$ 42,042
Deferred gain associated with sales leaseback transactions	$ 5,900
Weighted average remaining lease term		9 years 2 months 12 days
Weighted average discount rate		3.22%
Operating lease, right-of-use asset		$ 41,142
ASU 2016-02
Lessee, Lease, Description [Line Items]
Present value of net future minimum lease payments	46,100
Operating lease, right-of-use asset	$ 44,900
T&L
Lessee, Lease, Description [Line Items]
Operating lease, right-of-use asset		$ 3,800

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease, right-of-use asset	$ 41,142
Operating lease liabilities	$ 42,042
Operating lease, liability, statement of financial position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating lease, right-of-use asset, statement of financial position [Extensible List]	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow and Lease Cost Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 9,012	$ 8,433
Variable lease cost	2,756	2,765
Total Lease Cost	11,768	11,198
Operating cash flows from operating leases	$ 8,863	$ 8,304

Leases - Schedule of Minimum Pa

Leases - Schedule of Minimum Payments (Details) $ in Thousands	Dec. 31, 2020USD ($)
Leases [Abstract]
2020	$ 7,165
2021	6,227
2022	5,712
2023	5,309
2024	4,722
Thereafter	20,001
Total future minimum lease payments	49,136
Amounts representing interest	7,094
Present value of net future minimum lease payments	$ 42,042

Uncategorized Items - pfs-20201

Label	Element	Value
Stock Issued During Period, Value, Treasury Stock Reissued	us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued	$ 180,828,000
Additional Paid-in Capital [Member]
Stock Issued During Period, Value, Treasury Stock Reissued	us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued	(50,387,000)
Treasury Stock [Member]
Stock Issued During Period, Value, Treasury Stock Reissued	us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued	$ 231,215,000