OceanFirst Financial (OCFC) 10-Q 6 May 21 2021 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2021	May 03, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-11713
Entity Registrant Name	OceanFirst Financial Corp
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	22-3412577
Entity Address, Address Line One	110 West Front Street,
Entity Address, City or Town	Red Bank,
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07701
City Area Code	732
Local Phone Number	240-4500
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		60,332,307
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001004702
Current Fiscal Year End Date	--12-31
Common stock, $0.01 par value per share
Entity Information [Line Items]
Title of 12(b) Security	Common stock, $0.01 par value per share
Trading Symbol	OCFC
Security Exchange Name	NASDAQ
Depositary Shares (each representing a 1/40th interest in a share of 7.0% Series A Non-Cumulative, perpetual preferred stock)
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares (each representing a 1/40th interest in a share of 7.0% Series A Non-Cumulative, perpetual preferred stock)
Trading Symbol	OCFCP
Security Exchange Name	NASDAQ

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 1,173,665	$ 1,272,134
Debt securities available-for-sale, at estimated fair value	268,511	183,302
Debt securities held-to-maturity, net of allowance for securities credit losses of $1,717 at March 31, 2021 and $1,715 at December 31, 2020 (estimated fair value of $1,099,745 at March 31, 2021 and $968,466 at December 31, 2020)	1,082,326	937,253
Equity investments, at estimated fair value	50,159	107,079
Restricted equity investments, at cost	52,199	51,705
Loans receivable, net of allowance for loan credit losses of $59,976 at March 31, 2021 and $60,735 at December 31, 2020	7,820,590	7,704,857
Loans held-for-sale	43,175	45,524
Interest and dividends receivable	32,819	35,269
Other real estate owned	106	106
Premises and equipment, net	110,093	107,094
Bank owned life insurance	264,548	265,253
Assets held for sale	5,340	5,782
Goodwill	500,319	500,319
Core deposit intangible	22,273	23,668
Other assets	151,349	208,968
Total assets	11,577,472	11,448,313
Liabilities and Stockholders’ Equity
Deposits	9,502,812	9,427,616
Securities sold under agreements to repurchase with retail customers	134,465	128,454
Other borrowings	228,176	235,471
Advances by borrowers for taxes and insurance	20,980	17,296
Other liabilities	192,320	155,346
Total liabilities	10,078,753	9,964,183
Stockholders’ equity:
Preferred stock, $0.01 par value, $1,000 liquidation preference, 5,000,000 shares authorized, and 57,370 shares issued at both March 31, 2021 and December 31, 2020	1	1
Common stock, $0.01 par value, 150,000,000 shares authorized, 61,478,355 and 61,040,894 shares issued at March 31, 2021 and December 31, 2020, respectively; and 60,329,504 and 60,392,043 shares outstanding at March 31, 2021 and December 31, 2020, respectively	610	609
Additional paid-in capital	1,142,290	1,137,715
Retained earnings	398,280	378,268
Accumulated other comprehensive income	312	621
Less: Unallocated common stock held by Employee Stock Ownership Plan ("ESOP")	(7,129)	(7,433)
Treasury stock, 1,148,851 and 648,851 shares at March 31, 2021 and December 31, 2020, respectively	(35,645)	(25,651)
Total stockholders’ equity	1,498,719	1,484,130
Total liabilities and stockholders’ equity	$ 11,577,472	$ 11,448,313

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Securities held-to-maturity, net estimated fair value	$ 1,717	$ 1,715
Securities held-to-maturity, net encumbered	1,099,745	968,466
Loan receivable, allowance for credit losses	$ 59,976	$ 60,735
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred Stock, Liquidation Preference, Value	$ 1	$ 1
Preferred stock, shares authorized (shares)	5,000,000	5,000,000
Preferred stock, shares issued (shares)	57,370	57,370
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	150,000,000	150,000,000
Common stock, shares issued (shares)	61,478,355	61,040,894
Common stock, shares outstanding (shares)	60,329,504	60,392,043
Treasury stock, shares (shares)	648,851	1,148,851

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest income:
Loans	$ 77,908	$ 89,944
Debt securities	5,355	6,772
Equity investments and other	1,611	1,491
Total interest income	84,874	98,207
Interest expense:
Deposits	8,496	13,936
Borrowed funds	2,774	4,626
Total interest expense	11,270	18,562
Net interest income	73,604	79,645
Credit loss (benefit) expense	(620)	9,969
Net interest income after credit loss (benefit) expense	74,224	69,676
Other income:
Bankcard services revenue	3,052	2,481
Net gain on sales of loans	1,916	173
Net gain on equity investments	8,287	155
Net loss from other real estate operations	(8)	(150)
Income from bank owned life insurance	1,415	1,575
Commercial loan swap income	1,111	4,050
Other	726	25
Total other income	20,835	13,697
Operating expenses:
Compensation and employee benefits	28,366	29,885
Occupancy	5,061	5,276
Equipment	1,578	1,943
Marketing	434	769
Federal deposit insurance and regulatory assessments	1,864	667
Data processing	4,031	4,177
Check card processing	1,372	1,276
Professional fees	2,837	2,302
Other operating expense	3,353	3,802
Amortization of core deposit intangible	1,395	1,578
Branch consolidation expense	1,011	2,594
Merger related expenses	381	8,527
Total operating expenses	51,683	62,796
Income before provision for income taxes	43,376	20,577
Provision for income taxes	10,679	4,044
Net income	32,697	16,533
Dividends on preferred shares	1,004	0
Net income available to common stockholders	$ 31,693	$ 16,533
Basic earnings per share (in dollars per share)	$ 0.53	$ 0.28
Diluted earnings per share (in dollars per share)	$ 0.53	$ 0.27
Average basic shares outstanding (in shares)	59,840	59,876
Average diluted shares outstanding (in shares)	60,101	60,479
Trust and asset management revenue
Other income:
Other income	$ 599	$ 515
Fees and service charges
Other income:
Other income	$ 3,737	$ 4,873

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 32,697	$ 16,533
Other comprehensive (loss) income:
Unrealized (loss) gain on debt securities (net of tax benefit of $112 in 2021 and net tax expense of $586 in 2020)	(416)	2,149
Accretion of unrealized loss on debt securities reclassified to held-to-maturity (net of tax expense of $73 in 2021 and $84 in 2020)	107	115
Reclassification adjustment for gains included in net income (net of tax benefit of $173 in 2020)	0	(547)
Total other comprehensive (loss) income	(309)	1,717
Total comprehensive income	32,388	18,250
Less: Dividends on preferred shares	1,004	0
Comprehensive income available to common stockholders	$ 31,384	$ 18,250

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Unrealized gain on securities, tax expense (benefit)	$ (112)	$ 586
Accretion of fair value adjustment on held to maturity securities tax	$ 73	84
Reclassification adjustment for gains included in net income, tax expense (benefit)		$ (173)

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Two River Bancorp Inc.	Country Bank Holding Company, Inc	Cumulative Effect, Period Of Adoption, Adjustment	Employee Stock Ownership Plan	Preferred Stock	Common Stock	Common StockTwo River Bancorp Inc.	Common StockCountry Bank Holding Company, Inc	Additional Paid-In Capital	Additional Paid-In CapitalTwo River Bancorp Inc.	Additional Paid-In CapitalCountry Bank Holding Company, Inc	Retained Earnings	Retained EarningsCumulative Effect, Period Of Adoption, Adjustment	Accumulated Other Comprehensive (Loss) Income	Treasury Stock	Treasury StockTwo River Bancorp Inc.
Beginning Balance at Dec. 31, 2019	$ 1,153,119			$ (4)	$ (8,648)	$ 0	$ 519			$ 840,691			$ 358,668	$ (4)	$ (1,208)	$ (36,903)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	16,533												16,533
Other comprehensive income, net of tax	1,717														1,717
Stock compensation	1,108						2			1,106
Allocation of ESOP stock	347				304					43
Cash dividend per share	(10,274)												(10,274)
Exercise of stock options	657						2			1,305			(650)
Purchase of shares of common stock	(14,814)															(14,814)
Acquisition, value		$ 148,609	$ 112,836					$ 42	$ 44		$ 122,501	$ 112,792					$ 26,066
Ending Balance at Mar. 31, 2020	1,409,834				(8,344)	0	609			1,078,438			364,273		509	(25,651)
Beginning Balance at Dec. 31, 2020	1,484,130				(7,433)	1	609			1,137,715			378,268		621	(25,651)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	32,697												32,697
Other comprehensive income, net of tax	(309)														(309)
Stock compensation	1,237									1,237
Allocation of ESOP stock	352				304					48
Cash dividend per share	(10,152)												(10,152)
Exercise of stock options	1,762						1			3,290			(1,529)
Purchase of shares of common stock	(9,994)															(9,994)
Preferred stock dividend	(1,004)												(1,004)
Ending Balance at Mar. 31, 2021	$ 1,498,719				$ (7,129)	$ 1	$ 610			$ 1,142,290			$ 398,280		$ 312	$ (35,645)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividend per share (in dollars per share)	$ 0.17	$ 0.17
Purchase of common stock (in shares)	500,000	648,851

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income	$ 32,697	$ 16,533
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of premises and equipment	2,064	2,126
Allocation of ESOP stock	352	347
Stock compensation	1,237	1,108
Net excess tax expense (benefit) on stock compensation	90	(299)
Amortization of servicing asset	25	12
Net premium amortization in excess of discount accretion on securities	1,467	842
Net amortization of deferred costs on borrowings	212	63
Amortization of core deposit intangible	1,395	1,578
Net accretion of purchase accounting adjustments	(3,804)	(5,637)
Net amortization of deferred costs and discounts on loans	437	40
(Benefit) provision for credit losses	(620)	9,969
Net gain on sale and write-down of other real estate owned	0	(2)
Net write down of fixed assets held-for-sale to net realizable value	427	0
Net gain on equity securities	(8,287)	(155)
Net gain on sales of loans	(1,916)	(173)
Proceeds from sales of residential loans held for sale	69,416	7,673
Mortgage loans originated for sale	(65,151)	(25,282)
Increase in value of bank owned life insurance	(1,415)	(1,575)
Net loss on sale of assets held for sale	22	0
Decrease (increase) in interest and dividends receivable	2,450	(2,095)
Deferred tax (benefit) provision	(57)	245
Decrease in other assets	27,442	10,877
(Decrease) increase in other liabilities	(21,610)	47,501
Total adjustments	4,176	47,163
Net cash provided by operating activities	36,873	63,696
Cash flows from investing activities:
Net increase in loans receivable	(111,302)	(160,211)
Proceeds from sale of loans	0	9,313
Purchase of debt securities available-for-sale	(100,921)	(9,980)
Purchase of debt securities held-to-maturity	(178,316)	0
Purchase of equity investments	(10,575)	(36)
Proceeds from sale of equity investments	99,060	0
Proceeds from maturities and calls of debt securities available-for-sale	22,850	10,223
Proceeds from maturities and calls of debt securities held-to-maturity	6,565	13,001
Proceeds from sales of debt securities available-for-sale	0	5,869
Principal repayments on debt securities available-for-sale	46	0
Proceeds from bank owned life insurance	2,120	155
Proceeds from the redemption of restricted equity investments	344	36,581
Purchases of restricted equity investments	(485)	(47,216)
Proceeds from sales of other real estate owned	0	89
Proceeds from sales of assets held-for-sale	420	0
Purchases of premises and equipment	(5,336)	(1,798)
Net cash consideration received for acquisition	0	23,460
Net cash used in investing activities	(223,159)	(85,149)
Cash flows from financing activities:
Increase (decrease) in deposits	75,694	(29,963)
Increase (decrease) in short-term borrowings	6,011	(50,297)
Proceeds from Federal Home Loan Bank advances	0	460,000
Repayments of Federal Home Loan Bank advances	0	(162,700)
Repayments of other borrowings	(7,529)	(27)
Increase in advances by borrowers for taxes and insurance	3,684	4,832
Exercise of stock options	1,762	657
Payment of employee taxes withheld from stock awards	(1,094)	(1,972)
Purchase of treasury stock	(9,994)	(14,814)
Dividends paid	(11,156)	(10,274)
Net cash provided by financing activities	57,378	195,442
Net (decrease) increase in cash and due from banks and restricted cash	(128,908)	173,989
Supplemental Disclosure of Cash Flow Information:
Cash and due from banks and restricted cash at beginning of period	1,318,661	133,226
Cash and due from banks at beginning of period	1,272,134	120,544
Restricted cash at beginning of period	46,527	12,682
Cash and due from banks at end of period	1,173,665	256,470
Restricted cash at end of period	16,088	50,745
Cash and due from banks and restricted cash at end of period	1,189,753	307,215
Cash paid during the period for:
Interest	10,376	19,293
Income taxes	568	0
Non-cash activities:
Accretion of unrealized loss on securities reclassified to held-to-maturity	180	199
Net loan (recoveries) charge-offs	(280)	1,154
Transfer of loans receivable to other real estate owned	0	106
Non-cash assets acquired:
Securities	0	208,880
Restricted equity investments	0	5,334
Loans	0	1,559,497
Premises and equipment	0	9,744
Accrued interest receivable	0	4,161
Bank owned life insurance	0	22,440
Deferred tax asset	0	(800)
Other assets	0	10,077
Goodwill and other intangible assets, net	0	139,275
Total non-cash assets acquired	0	1,958,608
Liabilities assumed:
Deposits	0	1,594,403
Borrowings	0	92,618
Other liabilities	0	33,602
Total liabilities assumed	0	1,720,623
Mortgage-backed Securities Held-to-Maturity
Cash flows from investing activities:
Principal repayments on debt securities held-to-maturity	$ 52,371	$ 35,401

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements include the accounts of OceanFirst Financial Corp. (the “Company”) and its wholly-owned subsidiaries, OceanFirst Bank N.A. (the “Bank”) and OceanFirst Risk Management, Inc., and the Bank’s direct and indirect wholly-owned subsidiaries, OceanFirst REIT Holdings, Inc., OceanFirst Management Corp., OceanFirst Realty Corp. Casaba Real Estate Holdings Corporation, CBNJ Investments Corp., Country Property Holdings, Inc., and TRCB Investment Corp. Certain other subsidiaries were dissolved in 2020 and are included in the consolidated financial statements for previous periods. All significant intercompany accounts and transactions have been eliminated in consolidation. Certain amounts previously reported have been reclassified to conform to the current year’s presentation. The interim consolidated financial statements reflect all normal and recurring adjustments which are, in the opinion of management, considered necessary for a fair presentation of the financial condition and results of operations for the periods presented. The results of operations for the three months ended March 31, 2021 are not necessarily indicative of the results of operations that may be expected for the full year 2021 or any other period. In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the statements of financial condition and the results of operations for the period. Actual results could differ from these estimates. Certain information and note disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2021
Business Combinations [Abstract]
Business Combinations	Business Combinations Two River Bancorp Acquisition On January 1, 2020, the Company completed its acquisition of Two River Bancorp (“Two River”), which after purchase accounting adjustments added $1.11 billion to assets, $940.1 million to loans, and $941.8 million to deposits. Total consideration paid for Two River was $197.1 million, including cash consideration of $48.4 million. Two River was merged with and into the Company on the date of acquisition. The acquisition was accounted for under the acquisition method of accounting. Under this method of accounting, the purchase price has been allocated to the respective assets acquired and liabilities assumed based upon their estimated fair values, net of tax. The excess of consideration paid over the estimated fair value of the net assets acquired has been recorded as goodwill. The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of the acquisition for Two River, net of total consideration paid (in thousands): At January 1, 2020 Estimated Total purchase price: $ 197,050 Assets acquired: Cash and cash equivalents $ 51,102 Securities 64,381 Loans 940,072 Accrued interest receivable 2,382 Bank owned life insurance 22,440 Deferred tax asset 3,158 Other assets 15,956 Core deposit intangible 12,130 Total assets acquired 1,111,621 Liabilities assumed: Deposits (941,750) Other liabilities (59,026) Total liabilities assumed (1,000,776) Net assets acquired $ 110,845 Goodwill recorded in the merger $ 86,205 The calculation of goodwill is subject to change for up to one year after the date of acquisition as additional information relative to the estimates and uncertainties used to determine fair value as of the closing date become available. As of January 1, 2021, the Company finalized its review of the acquired assets and liabilities and will not be recording any further adjustments to the carrying value. Country Bank Holding Company, Inc. Acquisition On January 1, 2020, the Company completed its acquisition of Country Bank Holding Company, Inc. (“Country Bank”), which after purchase accounting adjustments added $793.7 million to assets, $618.4 million to loans, and $652.7 million to deposits. Total consideration paid for Country Bank was $112.8 million. Country Bank was merged with and into the Company on the date of acquisition. The acquisition was accounted for under the acquisition method of accounting. Under this method of accounting, the purchase price has been allocated to the respective assets acquired and liabilities assumed based upon their estimated fair values, net of tax. The excess of consideration paid over the estimated fair value of the net assets acquired has been recorded as goodwill. The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of the acquisition for Country Bank, net of total consideration paid (in thousands): At January 1, 2020 Estimated Total purchase price: $ 112,836 Assets acquired: Cash and cash equivalents $ 20,799 Securities 144,499 Loans 618,408 Accrued interest receivable 1,779 Deferred tax asset (3,117) Other assets 9,195 Core deposit intangible 2,117 Total assets acquired 793,680 Liabilities assumed: Deposits (652,653) Other liabilities (67,240) Total liabilities assumed (719,893) Net assets acquired $ 73,787 Goodwill recorded in the merger $ 39,049 The calculation of goodwill is subject to change for up to one year after the date of acquisition as additional information relative to the estimates and uncertainties used to determine fair value as of the closing date become available. As of January 1, 2021, the Company finalized its review of the acquired assets and liabilities and will not be recording any further adjustments to the carrying value. 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 Two River and Country Bank acquisitions were as follows. Refer to Note 7, Fair Value Measurements, for a discussion of the fair value hierarchy. Securities The estimated fair values of the securities were calculated utilizing Level 2 inputs. The securities acquired are bought and sold in active markets. Prices for these instruments were obtained through security industry sources that actively participate in the buying and selling of securities. Loans The acquired loan portfolio was valued utilizing Level 3 inputs and included the use of present value techniques employing cash flow estimates and incorporated assumptions that marketplace participants would use in estimating fair values. In instances where reliable market information was not available, the Company used its own assumptions in an effort to determine reasonable fair value. Specifically, the Company utilized three separate fair value analyses which a market participant would employ in estimating the total fair value adjustment. The three separate fair valuation methodologies used were: 1) interest rate loan fair value analysis; 2) general credit fair value adjustment; and 3) specific credit fair value adjustment. To prepare the interest rate fair value analysis, loans were grouped by characteristics such as loan type, term, collateral and rate. Market rates for similar loans were obtained from various external data sources and reviewed by Company management for reasonableness. The average of these rates was used as the fair value interest rate a market participant would utilize. A present value approach was utilized to calculate the interest rate fair value adjustment. The general credit fair value adjustment was calculated using a two part general credit fair value analysis: 1) expected lifetime losses and 2) estimated fair value adjustment for qualitative factors. The expected lifetime losses were calculated using an average of historical losses of the acquired bank or historical loss experiences of peer groups where deemed appropriate. The adjustment related to qualitative factors was impacted by general economic conditions and the risk related to lack of experience with the originator’s underwriting process. To calculate the specific credit fair value adjustment, subsequent to January 1, 2020, the Company identified loans that have experienced more-than-insignificant deterioration in credit quality since origination. Loans meeting this criteria were reviewed by comparing the contractual cash flows to expected collectible cash flows. The aggregate expected cash flows less the acquisition date fair value resulted in an accretable yield amount which will be recognized over the life of the loans on a level yield basis as an adjustment to yield. Premises and Equipment Fair values are based upon appraisals from independent third parties. In addition to owned properties, Two River operated 14 properties and Country Bank operated five properties, subject to lease agreements. Deposits and Core Deposit Premium Core deposit premium represents the value assigned to non-interest-bearing demand deposits, interest-bearing checking, money market and saving accounts acquired as part of the acquisition. The core deposit premium value represents the future economic benefit, including the present value of future tax benefits, of the potential cost saving from acquiring the core deposits as part of an acquisition compared to the cost of alternative funding sources and is valued utilizing Level 2 inputs. The core deposit premium totaled $12.1 million, and $2.1 million, for the acquisitions of Two River and Country Bank, respectively, and is being amortized over its estimated useful life of approximately 10 years using an accelerated method. Time deposits are not considered to be core deposits as they are assumed to have a low expected average life upon acquisition. The fair value of time deposits represents the present value of the expected contractual payments discounted by market rates for similar time deposits and is valued utilizing Level 2 inputs. Borrowings Fair value estimates are based on discounting contractual cash flows using rates which approximate the rates offered for borrowings of similar remaining maturities.

Earnings per Share

Earnings per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share The following reconciles shares outstanding for basic and diluted earnings per share for the three months ended March 31, 2021 and March 31, 2020 (in thousands): Three Months Ended 2021 2020 Weighted average shares outstanding 60,300 60,362 Less: Unallocated ESOP shares (386) (460) Unallocated incentive award shares (74) (26) Average basic shares outstanding 59,840 59,876 Add: Effect of dilutive securities: Incentive awards 261 603 Average diluted shares outstanding 60,101 60,479

Securities

Securities	3 Months Ended
	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The amortized cost, estimated fair value, and allowance for securities credit losses of debt securities available-for-sale and held-to-maturity at March 31, 2021 and December 31, 2020 are as follows (in thousands): Amortized Gross Gross Estimated Allowance for Credit Losses At March 31, 2021 Debt securities available-for-sale: U.S. government and agency obligations $ 169,337 $ 2,570 $ (8) $ 171,899 $ — Collateralized loan obligations (“CLOs”) 96,410 96 (40) 96,466 — Mortgage-backed securities - FNMA 144 2 — 146 — Total debt securities available-for-sale $ 265,891 $ 2,668 $ (48) $ 268,511 $ — Debt securities held-to-maturity: State, municipal and sovereign debt obligations 278,179 7,043 (1,106) 284,116 (90) Corporate debt securities 72,821 1,542 (1,912) 72,451 (1,511) Mortgage-backed securities: FHLMC 303,539 4,256 (3,178) 304,617 — FNMA 335,307 5,978 (2,481) 338,804 — GNMA 59,904 1,614 (23) 61,495 — SBA 5,190 — (58) 5,132 — Other 32,269 861 — 33,130 (116) Total mortgage-backed securities 736,209 12,709 (5,740) 743,178 (116) Total debt securities held-to-maturity $ 1,087,209 $ 21,294 $ (8,758) $ 1,099,745 $ (1,717) Total debt securities $ 1,353,100 $ 23,962 $ (8,806) $ 1,368,256 $ (1,717) Amortized Gross Gross Estimated Allowance for Credit Losses At December 31, 2020 Debt securities available-for-sale: U.S. government and agency obligations $ 173,790 $ 3,152 $ (2) $ 176,940 $ — CLOs 6,174 — (4) 6,170 — Mortgage-backed securities - FNMA 190 2 — 192 — Total debt securities available-for-sale $ 180,154 $ 3,154 $ (6) $ 183,302 $ — Debt securities held-to-maturity: State and municipal obligations 238,405 11,500 (231) 249,674 (48) Corporate debt securities 72,305 1,615 (2,652) 71,268 (1,550) Mortgage-backed securities: FHLMC 232,942 5,383 (124) 238,201 FNMA 293,615 7,640 (147) 301,108 GNMA 67,334 2,014 (12) 69,336 SBA 5,392 — (60) 5,332 Other 32,321 1,226 — 33,547 (117) Total mortgage-backed securities 631,604 16,263 (343) 647,524 (117) Total debt securities held-to-maturity $ 942,314 $ 29,378 $ (3,226) $ 968,466 $ (1,715) Total debt securities $ 1,122,468 $ 32,532 $ (3,232) $ 1,151,768 $ (1,715) There was no allowance for securities credit losses on debt securities available-for-sale at March 31, 2021 and December 31, 2020. The following table presents the activity in the allowance for credit losses for debt securities held-to-maturity for the three months ended March 31, 2021 and March 31, 2020 (in thousands): Three Months Ended March 31, 2021 2020 Allowance for credit losses Beginning balance $ (1,715) $ — Impact of CECL adoption — (1,268) Provision for credit loss expense (2) (1,261) Total ending allowance balance $ (1,717) $ (2,529) During 2013, the Bank transferred $536.0 million of previously designated available-for-sale securities to a held-to-maturity designation at estimated fair value. The securities transferred had an unrealized net loss of $13.3 million at the time of transfer, which continues to be reflected in accumulated other comprehensive income on the consolidated statement of financial condition, net of subsequent amortization, which is being recognized over the life of the securities. The carrying value of the debt securities held-to-maturity at March 31, 2021 and December 31, 2020 is as follows (in thousands): March 31, 2021 December 31, 2020 Amortized cost $ 1,087,209 $ 942,314 Net loss on date of transfer from available-for-sale (13,347) (13,347) Allowance for securities credit loss (1,717) (1,715) Accretion of net unrealized loss on securities reclassified as held-to-maturity 10,181 10,001 Carrying value $ 1,082,326 $ 937,253 There were no realized gains or losses on debt securities for the three months ended March 31, 2021 and 2020. The amortized cost and estimated fair value of debt securities at March 31, 2021 by contractual maturity are shown below (in thousands). Actual maturities may differ from contractual maturities in instances where issuers have the right to call or prepay obligations with or without call or prepayment penalties. At March 31, 2021, corporate debt securities with an amortized cost of $54.3 million, and estimated fair value of $54.0 million, and CLOs with an amortized cost of $96.4 million, and estimated fair value of $96.5 million, were callable prior to the maturity date. March 31, 2021 Amortized Estimated Less than one year $ 105,213 $ 105,784 Due after one year through five years 189,783 194,363 Due after five years through ten years 164,010 162,249 Due after ten years 157,741 162,536 $ 616,747 $ 624,932 Mortgage-backed securities are excluded from the above table since their effective lives are expected to be shorter than the contractual maturity date due to principal prepayments. The estimated fair value of securities pledged as required security for deposits and for other purposes required by law amounted to $533.0 million and $435.9 million at March 31, 2021 and December 31, 2020, respectively, which includes $147.0 million and $152.7 million at March 31, 2021 and December 31, 2020, respectively, pledged as collateral for securities sold under agreements to repurchase. At March 31, 2021, there were no holdings of securities of any one issuer, other than the US government and its agencies and government-sponsored enterprises, in an amount greater than 10% of stockholders’ equity. The estimated fair value and unrealized losses for debt securities available-for-sale and held-to-maturity at March 31, 2021 and December 31, 2020, segregated by the duration of the unrealized losses, are as follows (in thousands): At March 31, 2021 Less than 12 months 12 months or longer Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Debt securities available-for-sale: U.S. government and agency obligations $ 10,139 $ (8) $ — $ — $ 10,139 $ (8) CLOs 47,053 (40) — — 47,053 (40) Total debt securities available-for-sale 57,192 (48) — — 57,192 (48) Debt securities held-to-maturity: State, municipal and sovereign debt obligations $ 50,696 $ (890) $ 5,748 $ (216) $ 56,444 $ (1,106) Corporate debt securities 39,041 (1,774) 3,818 (138) 42,859 (1,912) Mortgage-backed securities: FHLMC 158,632 (3,178) — — 158,632 (3,178) FNMA 163,103 (2,478) 293 (3) 163,396 (2,481) GNMA 6,104 (23) — — 6,104 (23) SBA 2,015 (48) 3,116 (10) 5,131 (58) Total mortgage-backed securities 329,854 (5,727) 3,409 (13) 333,263 (5,740) Total debt securities held-to-maturity 419,591 (8,391) 12,975 (367) 432,566 (8,758) Total debt securities $ 476,783 $ (8,439) $ 12,975 $ (367) $ 489,758 $ (8,806) At December 31, 2020 Less than 12 months 12 months or longer Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Debt securities available-for-sale: U.S. government and agency obligations $ 17,029 $ (2) $ — $ — $ 17,029 $ (2) CLOs 4,766 (4) — — 4,766 (4) Total debt securities available-for-sale 21,795 (6) — — 21,795 (6) Debt securities held-to-maturity: State and municipal obligations 2,823 (23) 7,509 (208) 10,332 (231) Corporate debt securities 10,192 (255) 35,935 (2,397) 46,127 (2,652) Mortgage-backed securities: FHLMC 24,661 (117) 669 (7) 25,330 (124) FNMA 39,365 (128) 939 (19) 40,304 (147) GNMA 5,856 (11) 207 (1) 6,063 (12) SBA 3,626 (12) 1,706 (48) 5,332 (60) Total mortgage-backed securities 73,508 (268) 3,521 (75) 77,029 (343) Total debt securities held-to-maturity 86,523 (546) 46,965 (2,680) 133,488 (3,226) Total debt securities $ 108,318 $ (552) $ 46,965 $ (2,680) $ 155,283 $ (3,232) The Company concluded that the corporate debt securities were not impaired at March 31, 2021 and the Company considered several factors in its analysis. The Company noted that each issuer made all the contractually due payments when required. There were no defaults on principal or interest payments and no interest payments were deferred. Based on management’s analysis of each individual security, the issuers appear to have the ability to meet debt service requirements over the life of the security. Furthermore, the Company does not intend to sell these corporate debt securities and it is more likely than not that the Company will not be required to sell the securities. Historically, the Company has not utilized securities sales as a source of liquidity. The Company’s long range liquidity plans indicate adequate sources of liquidity outside the securities portfolio. The mortgage-backed securities are issued and guaranteed by either FHLMC, FNMA, GNMA, or SBA, corporations which are chartered by the United States Government and whose debt obligations are rated AA+/Aaa by S&P and Moody’s, respectively. Additionally, there are private label commercial mortgage-backed securities with credit ratings ranging between Aaa and Aa2. The Company considers the unrealized losses to be the result of changes in interest rates, and not credit quality, which over time can have both a positive and negative impact on the estimated fair value of the mortgage-backed securities. The Company does not intend to sell these securities and it is more likely than not that the Company will not be required to sell the securities before recovery of their amortized cost. As a result, the Company concluded that these securities were not impaired at March 31, 2021. State, municipal, and sovereign debt obligations are securities issued by state, local and national governments for various purposes. The Company is not aware of any information subsequent to the purchase of any state, municipal, and sovereign debt obligations that indicates an inability on the part of an issuer to meet all of its financial commitments. The weighted average credit rating of these securities is Aa/AA with no credit rating below Baa2/BBB. The Company has the ability and stated intention to hold these securities to maturity at which time the Company expects to receive full repayment. Current unrealized losses are considered to be the result of changes in interest rates which over time can have both a positive and negative impact on the estimated fair value of the securities. As a result, the Company concluded that these securities were not impaired as of March 31, 2021. The Company monitors the credit quality of debt securities held-to-maturity on a quarterly basis through the use of internal credit analysis supplemented by external credit ratings. The following table summarized the amortized cost of debt securities held-to-maturity at March 31, 2021, aggregated by credit quality indicator (in thousands): AAA AA A BBB BB Total As of March 31, 2021 State, municipal and sovereign debt obligations $ 33,421 $ 138,734 $ 72,959 $ 33,065 $ — $ 278,179 Corporate debt securities — 497 11,995 48,995 11,334 72,821 Mortgage-backed securities - Other 11,111 21,158 — — — 32,269 Total debt securities held-to-maturity $ 44,532 $ 160,389 $ 84,954 $ 82,060 $ 11,334 $ 383,269 Equity investments At March 31, 2021 and December 31, 2020, the Company held equity investments at an estimated fair value of $50.2 million and $107.1 million, respectively. The equity investments primarily comprised of select financial services institutions’ common and preferred stocks paying attractive dividends. The realized and unrealized gains or losses on equity securities for the three months ended March 31, 2021 and March 31, 2020 are shown in the table below (in thousands): Three Months Ended March 31, 2021 2020 Net gain on equity investments $ 8,287 $ 155 Less: Net gains recognized on equity securities sold 8,123 — Unrealized gain recognized on equity securities still held $ 164 $ 155

Loans Receivable, Net

Loans Receivable, Net	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Loans Receivable, Net	Loans Receivable, Net Loans receivable, net at March 31, 2021 and December 31, 2020 consisted of the following (in thousands): March 31, 2021 December 31, 2020 Commercial: Commercial and industrial (1) $ 498,245 $ 470,656 Commercial real estate – owner occupied 1,066,351 1,145,065 Commercial real estate – investor 3,804,351 3,491,464 Total commercial 5,368,947 5,107,185 Consumer: Residential real estate 2,189,348 2,309,459 Home equity loans and lines 267,591 285,016 Other consumer 46,651 54,446 Total consumer 2,503,590 2,648,921 Total loans receivable 7,872,537 7,756,106 Deferred origination costs, net 8,029 9,486 Allowance for loan credit losses (59,976) (60,735) Total loans receivable, net $ 7,820,590 $ 7,704,857 (1) The commercial and industrial loans balance at March 31, 2021 and December 31, 2020 includes Paycheck Protection Program (“PPP”) loans of $109.7 million and $95.4 million, respectively. The Company categorizes all loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, and current economic trends, among other factors. Generally, risk ratings for loans on forbearance pursuant to the Coronavirus Aid, Relief and Economic Security (“CARES”) Act are not re-evaluated until the initial 90-day forbearance period ends. At that time, risk ratings are updated with an emphasis on industries that were heavily impacted by the pandemic, as well as individual borrower liquidity, and other measures of resiliency as described below. The Company evaluates risk ratings on an ongoing basis and as such, adversely rated loans will be re-evaluated as government restrictions end and businesses resume normal operations. The Company uses the following definitions for risk ratings: Pass : Loans classified as Pass are well protected by the paying capacity and net worth of the borrower. Special Mention : Loans classified as Special Mention have a potential weakness that deserves management’s close attention. This includes borrowers that have been negatively affected by the pandemic but demonstrate some degree of liquidity. This liquidity may or may not be adequate to resume operations. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the Bank’s credit position at some future date. Substandard : Loans classified as Substandard are inadequately protected by the current net worth and paying capacity of the borrower or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. This includes borrowers whose operations were negatively affected by the pandemic and whom, in our assessment, do not have adequate liquidity available to resume operations at levels sufficient to service their current debt levels. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful : Loans classified as Doubtful have all the weaknesses inherent in those classified as Substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The following tables summarize total loans by year of origination, internally assigned credit grades and risk characteristics (in thousands): 2021 2020 2019 2018 2017 2016 and prior Revolving lines of credit Total March 31, 2021 Commercial and industrial Pass $ 68,908 $ 85,402 $ 35,616 $ 25,960 $ 13,952 $ 88,010 $ 161,358 $ 479,206 Special Mention — 334 1,866 776 1,328 706 2,029 7,039 Substandard — 567 1,279 881 754 2,033 6,486 12,000 Total commercial and industrial 68,908 86,303 38,761 27,617 16,034 90,749 169,873 498,245 Commercial real estate - owner occupied Pass 20,780 72,657 120,065 122,007 115,902 496,736 10,127 958,274 Special Mention — — 3,488 6,556 1,973 32,144 278 44,439 Substandard — — 14,377 8,926 2,874 36,912 549 63,638 Total commercial real estate - owner occupied 20,780 72,657 137,930 137,489 120,749 565,792 10,954 1,066,351 Commercial real estate - investor Pass 399,267 656,812 603,104 306,120 420,926 997,722 214,003 3,597,954 Special Mention — — 25,847 17,113 14,086 41,043 — 98,089 Substandard — 4,311 29,576 1,962 18,244 47,845 6,370 108,308 Total commercial real estate - investor 399,267 661,123 658,527 325,195 453,256 1,086,610 220,373 3,804,351 Residential real estate (1) Pass 122,744 553,741 387,283 188,276 145,840 789,192 — 2,187,076 Special Mention — — 198 — — 335 — 533 Substandard — — — — 221 1,518 — 1,739 Total residential real estate 122,744 553,741 387,481 188,276 146,061 791,045 — 2,189,348 Consumer (1) Pass 5,331 23,648 24,022 72,429 23,595 159,762 2,038 310,825 Special Mention — — 54 18 — 49 — 121 Substandard — — — 17 — 3,279 — 3,296 Total consumer 5,331 23,648 24,076 72,464 23,595 163,090 2,038 314,242 Total loans $ 617,030 $ 1,397,472 $ 1,246,775 $ 751,041 $ 759,695 $ 2,697,286 $ 403,238 $ 7,872,537 (1) For residential real estate and consumer loans, the Company evaluates credit quality based on the aging status of the loan and by payment activity. 2020 2019 2018 2017 2016 2015 and prior Revolving lines of credit Total December 31, 2020 Commercial and industrial Pass $ 137,262 $ 40,737 $ 27,967 $ 18,845 $ 33,568 $ 59,339 $ 134,140 $ 451,858 Special Mention 150 583 826 1,422 907 118 1,429 5,435 Substandard 581 1,284 1,243 809 439 1,706 7,301 13,363 Total commercial and industrial 137,993 42,604 30,036 21,076 34,914 61,163 142,870 470,656 Commercial real estate - owner occupied Pass 96,888 114,506 122,962 124,050 104,264 428,423 18,932 1,010,025 Special Mention — 3,512 8,240 1,023 17,115 17,811 439 48,140 Substandard — 34,670 9,001 3,404 3,677 35,509 639 86,900 Total commercial real estate - owner occupied 96,888 152,688 140,203 128,477 125,056 481,743 20,010 1,145,065 Commercial real estate - investor Pass 635,930 628,435 317,104 426,268 281,876 812,062 194,913 3,296,588 Special Mention — 15,979 17,113 15,225 4,234 55,872 149 108,572 Substandard 4,311 9,217 1,931 17,222 11,474 36,326 5,823 86,304 Total commercial real estate - investor 640,241 653,631 336,148 458,715 297,584 904,260 200,885 3,491,464 Residential real estate (1) Pass 595,982 437,593 226,435 166,773 146,237 729,037 — 2,302,057 Special Mention — 532 — — 446 2,186 — 3,164 Substandard 570 — 1,489 221 — 1,958 — 4,238 Total residential real estate 596,552 438,125 227,924 166,994 146,683 733,181 — 2,309,459 Consumer (1) Pass 24,954 26,659 83,296 25,469 16,565 156,276 2,145 335,364 Special Mention — — — — 150 382 — 532 Substandard — — — — — 3,566 — 3,566 Total consumer 24,954 26,659 83,296 25,469 16,715 160,224 2,145 339,462 Total loans $ 1,496,628 $ 1,313,707 $ 817,607 $ 800,731 $ 620,952 $ 2,340,571 $ 365,910 $ 7,756,106 (1) For residential real estate and consumer loans, the Company evaluates credit quality based on the aging status of the loan and by payment activity. An analysis of the allowance for credit losses on loans for the three months ended March 31, 2021 and March 31, 2020 is as follows (in thousands): Commercial Commercial Commercial Residential Consumer Unallocated Total For the three months ended Allowance for credit losses on loans Balance at beginning of period $ 5,390 $ 15,054 $ 26,703 $ 11,818 $ 1,770 $ — $ 60,735 Credit loss (benefit) expense (2,875) (7,257) 10,149 (335) (721) — (1,039) Charge-offs — — (34) (242) (80) — (356) Recoveries 26 30 104 39 437 — 636 Balance at end of period $ 2,541 $ 7,827 $ 36,922 $ 11,280 $ 1,406 $ — $ 59,976 For the three months ended Allowance for credit losses on loans Balance at beginning of period $ 1,458 $ 2,893 $ 9,883 $ 2,002 $ 591 $ 25 $ 16,852 Impact of CECL adoption 2,416 (1,109) (5,395) 3,833 2,981 (25) 2,701 Credit loss expense (benefit) 1,529 1,286 2,377 3,585 (180) — 8,597 Initial allowance for credit losses on PCD loans 1,221 26 260 109 1,023 — 2,639 Charge-offs — — — (1,275) (109) — (1,384) Recoveries 25 — 34 163 8 — 230 Balance at end of period $ 6,649 $ 3,096 $ 7,159 $ 8,417 $ 4,314 $ — $ 29,635 A loan is considered collateral dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. At March 31, 2021 and December 31, 2020, the Company had collateral dependent loans with an amortized cost balance as follows: commercial and industrial of $1.6 million and $1.9 million, respectively, commercial real estate - owner occupied of $12.3 million and $13.8 million, respectively, and commercial real estate - investor of $18.5 million and $18.3 million, respectively. In addition, the Company had residential and consumer loans collateralized by residential real estate, which are in the process of foreclosure, with an amortized cost balance of $1.3 million and $1.4 million at March 31, 2021 and December 31, 2020, respectively. At March 31, 2021 and December 31, 2020, the amount of foreclosed residential real estate property held by the Company were $106,000 and $106,000, respectively. The following table presents the recorded investment in non-accrual loans by loan portfolio segment as of March 31, 2021 and December 31, 2020 (in thousands): March 31, 2021 December 31, 2020 Commercial and industrial $ 1,689 $ 1,908 Commercial real estate – owner occupied 12,345 13,751 Commercial real estate – investor 18,520 18,287 Residential real estate 6,422 8,671 Consumer 3,782 4,246 $ 42,758 $ 46,863 At March 31, 2021, the non-accrual loans were included in the allowance for credit loss calculation and the Company did not recognize or accrue interest income on these loans. At March 31, 2021 and December 31, 2020, there were no loans that were 90 days or greater past due and still accruing interest. The following table presents the aging of the recorded investment in past due loans as of March 31, 2021 and December 31, 2020 by loan portfolio segment (in thousands): 30-59 60-89 90 Days or Greater Past Due Total Loans Not Total March 31, 2021 Commercial and industrial $ 169 $ 669 $ 394 $ 1,232 $ 497,013 $ 498,245 Commercial real estate – owner occupied 649 — 7,719 8,368 1,057,983 1,066,351 Commercial real estate – investor 3,377 — 9,047 12,424 3,791,927 3,804,351 Residential real estate 11,031 533 1,739 13,303 2,176,045 2,189,348 Consumer 1,873 120 3,298 5,291 308,951 314,242 $ 17,099 $ 1,322 $ 22,197 $ 40,618 $ 7,831,919 $ 7,872,537 December 31, 2020 Commercial and industrial $ 3,050 $ 628 $ 327 $ 4,005 $ 466,651 $ 470,656 Commercial real estate – owner occupied 1,015 — 7,871 8,886 1,136,179 1,145,065 Commercial real estate – investor 8,897 3,233 11,122 23,252 3,468,212 3,491,464 Residential real estate 15,156 3,164 4,238 22,558 2,286,901 2,309,459 Consumer 978 533 3,568 5,079 334,383 339,462 $ 29,096 $ 7,558 $ 27,126 $ 63,780 $ 7,692,326 $ 7,756,106 The Company classifies certain loans as troubled debt restructured (“TDR”) loans when credit terms to a borrower in financial difficulty are modified. The modifications may include a reduction in rate, an extension in term, the capitalization of past due amounts and/or the restructuring of scheduled principal payments. Residential real estate and consumer loans where the borrower’s debt is discharged in a bankruptcy filing are also considered TDR loans. For these loans, the Bank retains its security interest in the real estate collateral. At March 31, 2021 and December 31, 2020, TDR loans totaled $16.6 million and $17.5 million, respectively. Included in the non-accrual loan total at March 31, 2021 and December 31, 2020 were $5.1 million and $5.5 million, respectively, of TDR loans. At March 31, 2021 and December 31, 2020, the Company had no specific reserves allocated to loans that are classified as TDR loans. Non-accrual loans which become TDR loans are generally returned to accrual status after six months of performance. In addition to the TDR loans included in non-accrual loans, the Company also has loans classified as accruing TDR loans at March 31, 2021 and December 31, 2020, which totaled $11.5 million and $12.0 million, respectively. The following table presents information about TDR loans which occurred during the three months ended March 31, 2021 and March 31, 2020 (dollars in thousands): Number of Loans Pre-modification Post-modification Three months ended March 31, 2021 Troubled debt restructurings: Consumer 2 $ 26 $ 33 Number of Loans Pre-modification Post-modification Three Months Ended March 31, 2020 Troubled debt restructurings: Consumer 4 $ 159 $ 177 Residential real estate 2 226 234 There were no TDR loans that defaulted during the three months ended March 31, 2021 and March 31, 2020 which were modified within the preceding year. In response to the COVID-19 pandemic and its economic impact on customers, short-term modification programs that comply with the CARES Act were implemented to provide temporary payment relief to those borrowers directly impacted by COVID-19. The Commercial Borrower Relief Program allowed for the deferral of principal and interest or principal only. For principal and interest deferrals as well as principal only deferrals, all payments received will first be applied to all accrued and

Deposits

Deposits	3 Months Ended
	Mar. 31, 2021
Banking and Thrift, Other Disclosures [Abstract]
Deposits	Deposits The major types of deposits at March 31, 2021 and December 31, 2020 were as follows (in thousands): Type of Account March 31, 2021 December 31, 2020 Non-interest-bearing $ 2,417,935 $ 2,133,195 Interest-bearing checking 3,623,132 3,646,866 Money market deposit 782,459 783,521 Savings 1,568,528 1,491,251 Time deposits 1,110,758 1,372,783 Total deposits $ 9,502,812 $ 9,427,616 Included in time deposits at March 31, 2021 and December 31, 2020, was $172.1 million and $409.5 million, respectively, in deposits of $250,000 and over.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. A fair value measurement assumes that the transaction to sell the asset or transfer the liability occurs in the principal market for the asset or liability or in the absence of a principal market, the most advantageous market for the asset or liability. The price in the principal (or most advantageous) market used to measure the fair value of the asset or liability shall not be adjusted for transaction costs. An orderly transaction is a transaction that assumes exposure to the market for a period prior to the measurement date to allow for marketing activities that are usual and customary for transactions involving such assets and liabilities; it is not a forced transaction. Market participants are buyers and sellers in the principal market that are (i) independent, (ii) knowledgeable, (iii) able to transact and (iv) willing to transact. The Company uses valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets and liabilities. The income approach uses valuation techniques to convert future amounts, such as cash flows or earnings, to a single present amount on a discounted basis. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement costs). Valuation techniques should be consistently applied. Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability. Inputs may be observable, meaning those that reflect the assumptions market participants would use in pricing the asset or liability and developed based on market data obtained from independent sources, or unobservable, meaning those that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability and developed based on the best information available in the circumstances. In that regard, a fair value hierarchy has been established for valuation inputs that gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: Level 1 Inputs – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (for example, interest rates, volatilities, prepayment speeds, loss severities, credit risks and default rates) or inputs that are derived principally from or corroborated by observable market data by correlations or other means. Level 3 Inputs – Significant unobservable inputs that reflect an entity’s own assumptions that market participants would use in pricing the assets or liabilities. Assets and Liabilities Measured at Fair Value A description of the valuation methodologies used for assets and liabilities measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. Certain financial assets and financial liabilities are measured at fair value on a non-recurring basis, that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). Debt Securities Available-for-Sale Debt securities classified as available-for-sale are reported at fair value. Fair value for these debt securities is determined using inputs other than quoted prices that are based on market observable information (Level 2). Level 2 debt securities are priced through third-party pricing services or security industry sources that actively participate in the buying and selling of securities. Prices obtained from these sources include market quotations and matrix pricing. Matrix pricing is a mathematical technique used principally to value certain debt securities without relying exclusively on quoted prices for the specific securities, but comparing the debt securities to benchmark or comparable debt securities. Equity Investments Equity investments are reported at fair value. Fair value for these investments is primarily determined using a quoted price in an active market or exchange (Level 1) or using inputs other than quoted prices that are based on market observable information (Level 2). Fair value for certain securities, including convertible preferred stock, was determined using broker or dealer quotes with limited levels of activity and price transparency (Level 3). Equity securities without readily determinable fair values are carried at cost less impairment, if any, plus or minus adjustments resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. Interest Rate Swaps The Company’s interest rate swaps are reported at fair value utilizing discounted cash flow models provided by an independent, third-party and observable market data (Level 2). When entering into an interest rate swap agreement, the Company is exposed to fair value changes due to interest rate movements, and also the potential nonperformance of our contract counterparty. Other Real Estate Owned and Loans Individually Measured for Impairment Other real estate owned and loans measured for impairment based on the fair value of the underlying collateral are recorded at estimated fair value, less estimated selling costs. Fair value is based on independent appraisals (“Level 3”).. The following table summarizes financial assets and financial liabilities measured at fair value as of March 31, 2021 and December 31, 2020, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (in thousands): Fair Value Measurements at Reporting Date Using: Total Fair Level 1 Level 2 Level 3 March 31, 2021 Items measured on a recurring basis: Debt securities available-for-sale $ 268,511 $ — $ 268,511 $ — Equity investments 50,159 13,693 28,528 7,938 Interest rate swap asset 27,084 — 27,084 — Interest rate swap liability (27,160) — (27,160) — Items measured on a non-recurring basis: Other real estate owned 106 — — 106 Loans measured for impairment based on the fair value of the underlying collateral 33,747 — — 33,747 December 31, 2020 Items measured on a recurring basis: Debt securities available-for-sale $ 183,302 $ — $ 183,302 $ — Equity investments 107,079 104,539 — 2,540 Interest rate swap asset 45,289 — 45,289 — Interest rate swap liability (45,429) — (45,429) — Items measured on a non-recurring basis: Other real estate owned 106 — — 106 Loans measured for impairment based on the fair value of the underlying collateral 35,366 — — 35,366 The Company recognizes transfers between levels of the valuation hierarchy at the end of the applicable reporting periods. There were no transfers of assets between Level 1 and Level 2 during the three months ended March 31, 2021 and December 31, 2020. The following table reconciles, for the three months ended March 31, 2021, the beginning and ending balances for equity investments that are recognized at fair value on a recurring basis, in the consolidated statements of financial condition, using significant unobservable inputs (in thousands): Three Months Ended March 31, 2021 Beginning Balance $ 2,540 Total gains (losses) included in earnings 398 Purchases 5,000 Transfers into Level 3 — Transfers out of Level 3 — Ending Balance $ 7,938 There were no changes in Level 3 assets or liabilities in the fair value hierarchy for the three months ended March 31, 2020. The Company purchased $5.0 million of a minority, non-controlling equity investment in Auxilior Capital Partners classified as Level 3 at March 31, 2021 as the security was carried at cost with no observable price changes noted since purchased. Assets and Liabilities Disclosed at Fair Value A description of the valuation methodologies used for assets and liabilities disclosed at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy is set forth below. Cash and Due from Banks For cash and due from banks, the carrying amount approximates fair value. Debt Securities Held-to-Maturity Debt securities classified as held-to-maturity are carried at amortized cost, as the Company has the positive intent and ability to hold these debt securities to maturity. The Company determines the fair value of the debt securities utilizing Level 2 and, infrequently, Level 3 inputs. Most of the Company’s investment and mortgage-backed securities are fixed income instruments that are not quoted on an exchange, but are bought and sold in active markets. Prices for these instruments are obtained through third-party pricing vendors or security industry sources that actively participate in the buying and selling of debt securities. Prices obtained from these sources include market quotations and matrix pricing. Matrix pricing is a mathematical technique used principally to value certain debt securities without relying exclusively on quoted prices for the specific debt securities, but comparing the debt securities to benchmark or comparable debt securities. Management’s policy is to obtain and review all available documentation from the third-party pricing service relating to their fair value determinations, including their methodology and summary of inputs. Management reviews this documentation, makes inquiries of the third-party pricing service and decides as to the level of the valuation inputs. Based on the Company’s review of the available documentation from the third-party pricing service, management concluded that Level 2 inputs were utilized for all securities except for certain state and municipal obligations (known as Bond Anticipation Notes (“BANs”)) as well as certain debt securities where management utilized Level 3 inputs, such as broker or dealer quotes with limited levels of activity and price transparency. Restricted Equity Investments The fair value for Federal Home Loan Bank of New York and Federal Reserve Bank stock is its carrying value since this is the amount for which it could be redeemed. There is no active market for this stock and the Company is required to maintain a minimum investment as stipulated by the respective agencies. Loans Receivable and Loans Held-for-Sale Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as residential real estate, consumer and commercial. Each loan category is further segmented into fixed and adjustable rate interest terms. Fair value of performing and non-performing loans was estimated by discounting the future cash flows, net of estimated prepayments, at a rate for which similar loans would be originated to new borrowers with similar terms. In accordance with the prospective adoption of ASU 2016-01, the fair value of loans was measured using the exit price notion. Deposits Other than Time Deposits The fair value of deposits with no stated maturity, such as non-interest-bearing demand deposits, savings, and interest-bearing checking accounts and money market accounts is, by definition, equal to the amount payable on demand. The related insensitivity of the majority of these deposits to interest rate changes creates a significant inherent value which is not reflected in the fair value reported. Time Deposits The fair value of time deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. Securities Sold Under Agreements to Repurchase with Retail Customers Fair value approximates the carrying amount as these borrowings are payable on demand and the interest rate adjusts monthly. Borrowed Funds Fair value estimates are based on discounting contractual cash flows using rates which approximate the rates offered for borrowings of similar remaining maturities. The book value and estimated fair value of the Bank’s significant financial instruments not recorded at fair value as of March 31, 2021 and December 31, 2020 are presented in the following tables (in thousands): Fair Value Measurements at Reporting Date Using: Book Level 1 Level 2 Level 3 March 31, 2021 Financial Assets: Cash and due from banks $ 1,173,665 $ 1,173,665 $ — $ — Debt securities held-to-maturity 1,082,326 — 1,081,590 18,155 Restricted equity investments 52,199 — — 52,199 Loans receivable, net and loans held-for-sale 7,863,765 — — 7,822,353 Financial Liabilities: Deposits other than time deposits 8,392,054 — 8,392,054 — Time deposits 1,110,758 — 1,118,867 — Other borrowings 228,176 — 241,122 — Securities sold under agreements to repurchase with retail customers 134,465 134,465 — — December 31, 2020 Financial Assets: Cash and due from banks $ 1,272,134 $ 1,272,134 $ — $ — Debt securities held-to-maturity 937,253 — 952,365 16,101 Restricted equity investments 51,705 — — 51,705 Loans receivable, net and loans held-for-sale 7,750,381 — — 7,806,743 Financial Liabilities: Deposits other than time deposits 8,054,833 — 8,054,833 — Time deposits 1,372,783 — 1,383,173 — FHLB advances and other borrowings 235,471 — 251,798 — Securities sold under agreements to repurchase with retail customers 128,454 128,454 — — 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 a limited 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 significant unobservable inputs. 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 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 premises and equipment, bank owned life insurance, deferred tax assets and goodwill. 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.

Derivatives, Hedging Activities

Derivatives, Hedging Activities, and Other Financial Instruments	3 Months Ended
	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives, Hedging Activities, and Other Financial Instruments	Derivatives, Hedging Activities and Other Financial Instruments The Company enters into derivative financial instruments which involve, to varying degrees, interest rate, market and credit risk. The Company manages these risks as part of its asset and liability management process and through credit policies and procedures, seeking to minimize counterparty credit risk by establishing credit limits and collateral agreements. The Company utilizes certain derivative financial instruments to enhance its ability to manage interest rate risk that exists as part of its ongoing business operations. The derivative financial instruments entered into by the Company are an economic hedge of a derivative offering to Bank customers. The Company does not use derivative financial instruments for trading purposes. Customer Derivatives – Interest Rate Swaps The Company enters into interest rate swaps that allow commercial loan customers to effectively convert a variable-rate commercial loan agreement to a fixed-rate commercial loan agreement. Under these agreements, the Company enters into a variable-rate loan agreement with a customer in addition to an interest rate swap agreement, which serves to effectively swap the customer’s variable-rate loan into a fixed-rate loan. The Company then enters into a corresponding swap agreement with a third party in order to economically hedge its exposure through the customer agreement. The interest rate swaps with both the customers and third parties are not designated as hedges under FASB Accounting Standards Codification (“ASC”) Topic 815, Derivatives and Hedging, and are marked to market through earnings. As the interest rate swaps are structured to offset each other, changes to the underlying benchmark interest rates considered in the valuation of these instruments do not result in an impact to earnings; however, there may be fair value adjustments related to credit quality variations between counterparties, which may impact earnings as required by FASB ASC Topic 820, Fair Value Measurements. For the three months ended March 31, 2021 and March 31, 2020, the Company recognized a gain of $64,000 and $303,000, respectively, in other income resulting from fair value adjustments. The notional amount of derivatives not designated as hedging instruments was $815.3 million and $725.9 million at March 31, 2021 and December 31, 2020, respectively. The table below presents the fair value of derivatives not designated as hedging instruments as well as their location on the consolidated statements of financial condition (in thousands): Fair Value Balance Sheet Location March 31, 2021 December 31, 2020 Other assets $ 27,084 $ 45,289 Other liabilities 27,160 45,429 Credit Risk-Related Contingent Features

Leases

Leases	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Leases	LeasesA lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. The Company’s leases are comprised of real estate property for branches, automated teller machine locations and office space with terms extending through 2050. The Company has one existing finance lease, which has a lease term through 2029. The following table represents the classification of the Company’s right-of-use (“ROU”) assets and lease liabilities on the consolidated statements of financial condition (in thousands): March 31, 2021 December 31, 2020 Lease ROU Assets Classification Operating lease ROU asset Other assets $ 21,616 $ 22,555 Finance lease ROU asset Premises and equipment, net 1,644 1,694 Total lease ROU asset $ 23,260 $ 24,249 Lease Liabilities Operating lease liability Other liabilities $ 22,090 $ 22,990 Finance lease liability Other borrowings 2,052 2,100 Total lease liability $ 24,142 $ 25,090 The calculated amount of the ROU assets and lease liabilities are impacted by the lease term and the discount rate used to calculate the present value of the minimum lease payments. Lease agreements often include one or more options to renew the lease at the Company’s discretion. If the exercise of a renewal option is considered to be reasonably certain, the Company includes the extended term in the calculation of the ROU asset and lease liability. For the discount rate, Leases (Topic 842) requires the Company to use the rate implicit in the lease, provided the rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate, at lease inception, over a similar term. For operating leases existing prior to January 1, 2019, the Company used the incremental borrowing rate for the remaining lease term as of January 1, 2019. For the finance lease, the Company utilized its incremental borrowing rate at lease inception. March 31, 2021 December 31, 2020 Weighted-Average Remaining Lease Term Operating leases 7.72 years 7.77 years Finance lease 8.35 years 8.59 years Weighted-Average Discount Rate Operating leases 3.00 % 3.01 % Finance lease 5.63 % 5.63 % The following table represents lease expenses and other lease information (in thousands): Three Months Ended March 31, 2021 March 31, 2020 Lease Expense Operating lease expense $ 1,490 $ 1,723 Finance lease expense: Amortization of ROU assets 50 40 Interest on lease liabilities (1) 29 27 Total $ 1,569 $ 1,790 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,450 $ 1,648 Operating cash flows from finance leases 29 27 Financing cash flows from finance leases 48 47 (1) Included in borrowed funds interest expense on the consolidated statements of income. All other costs are included in occupancy expense. Future minimum payments for the finance lease and operating leases with initial or remaining terms of one year or more as of March 31, 2021 were as follows (in thousands): Finance Lease Operating Leases For the Twelve Months Ended March 31, 2022 $ 307 $ 5,836 2023 307 4,292 2024 307 3,190 2025 307 2,739 2026 307 2,154 Thereafter 1,028 7,164 Total $ 2,563 $ 25,375 Less: Imputed interest (511) (3,285) Total lease liabilities $ 2,052 $ 22,090
Leases	LeasesA lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. The Company’s leases are comprised of real estate property for branches, automated teller machine locations and office space with terms extending through 2050. The Company has one existing finance lease, which has a lease term through 2029. The following table represents the classification of the Company’s right-of-use (“ROU”) assets and lease liabilities on the consolidated statements of financial condition (in thousands): March 31, 2021 December 31, 2020 Lease ROU Assets Classification Operating lease ROU asset Other assets $ 21,616 $ 22,555 Finance lease ROU asset Premises and equipment, net 1,644 1,694 Total lease ROU asset $ 23,260 $ 24,249 Lease Liabilities Operating lease liability Other liabilities $ 22,090 $ 22,990 Finance lease liability Other borrowings 2,052 2,100 Total lease liability $ 24,142 $ 25,090 The calculated amount of the ROU assets and lease liabilities are impacted by the lease term and the discount rate used to calculate the present value of the minimum lease payments. Lease agreements often include one or more options to renew the lease at the Company’s discretion. If the exercise of a renewal option is considered to be reasonably certain, the Company includes the extended term in the calculation of the ROU asset and lease liability. For the discount rate, Leases (Topic 842) requires the Company to use the rate implicit in the lease, provided the rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate, at lease inception, over a similar term. For operating leases existing prior to January 1, 2019, the Company used the incremental borrowing rate for the remaining lease term as of January 1, 2019. For the finance lease, the Company utilized its incremental borrowing rate at lease inception. March 31, 2021 December 31, 2020 Weighted-Average Remaining Lease Term Operating leases 7.72 years 7.77 years Finance lease 8.35 years 8.59 years Weighted-Average Discount Rate Operating leases 3.00 % 3.01 % Finance lease 5.63 % 5.63 % The following table represents lease expenses and other lease information (in thousands): Three Months Ended March 31, 2021 March 31, 2020 Lease Expense Operating lease expense $ 1,490 $ 1,723 Finance lease expense: Amortization of ROU assets 50 40 Interest on lease liabilities (1) 29 27 Total $ 1,569 $ 1,790 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,450 $ 1,648 Operating cash flows from finance leases 29 27 Financing cash flows from finance leases 48 47 (1) Included in borrowed funds interest expense on the consolidated statements of income. All other costs are included in occupancy expense. Future minimum payments for the finance lease and operating leases with initial or remaining terms of one year or more as of March 31, 2021 were as follows (in thousands): Finance Lease Operating Leases For the Twelve Months Ended March 31, 2022 $ 307 $ 5,836 2023 307 4,292 2024 307 3,190 2025 307 2,739 2026 307 2,154 Thereafter 1,028 7,164 Total $ 2,563 $ 25,375 Less: Imputed interest (511) (3,285) Total lease liabilities $ 2,052 $ 22,090

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation	The consolidated financial statements include the accounts of OceanFirst Financial Corp. (the “Company”) and its wholly-owned subsidiaries, OceanFirst Bank N.A. (the “Bank”) and OceanFirst Risk Management, Inc., and the Bank’s direct and indirect wholly-owned subsidiaries, OceanFirst REIT Holdings, Inc., OceanFirst Management Corp., OceanFirst Realty Corp. Casaba Real Estate Holdings Corporation, CBNJ Investments Corp., Country Property Holdings, Inc., and TRCB Investment Corp. Certain other subsidiaries were dissolved in 2020 and are included in the consolidated financial statements for previous periods. All significant intercompany accounts and transactions have been eliminated in consolidation. Certain amounts previously reported have been reclassified to conform to the current year’s presentation.

Business Combinations (Tables)

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2021
Business Combinations [Abstract]
Summary of Assets Acquired and Liabilities Assumed and Their Initial Fair Value Estimates	The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of the acquisition for Two River, net of total consideration paid (in thousands): At January 1, 2020 Estimated Total purchase price: $ 197,050 Assets acquired: Cash and cash equivalents $ 51,102 Securities 64,381 Loans 940,072 Accrued interest receivable 2,382 Bank owned life insurance 22,440 Deferred tax asset 3,158 Other assets 15,956 Core deposit intangible 12,130 Total assets acquired 1,111,621 Liabilities assumed: Deposits (941,750) Other liabilities (59,026) Total liabilities assumed (1,000,776) Net assets acquired $ 110,845 Goodwill recorded in the merger $ 86,205 The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of the acquisition for Country Bank, net of total consideration paid (in thousands): At January 1, 2020 Estimated Total purchase price: $ 112,836 Assets acquired: Cash and cash equivalents $ 20,799 Securities 144,499 Loans 618,408 Accrued interest receivable 1,779 Deferred tax asset (3,117) Other assets 9,195 Core deposit intangible 2,117 Total assets acquired 793,680 Liabilities assumed: Deposits (652,653) Other liabilities (67,240) Total liabilities assumed (719,893) Net assets acquired $ 73,787 Goodwill recorded in the merger $ 39,049

Earnings per Share (Tables)

Earnings per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Reconciliation of Shares Outstanding for Basic and Diluted Earnings per Share	The following reconciles shares outstanding for basic and diluted earnings per share for the three months ended March 31, 2021 and March 31, 2020 (in thousands): Three Months Ended 2021 2020 Weighted average shares outstanding 60,300 60,362 Less: Unallocated ESOP shares (386) (460) Unallocated incentive award shares (74) (26) Average basic shares outstanding 59,840 59,876 Add: Effect of dilutive securities: Incentive awards 261 603 Average diluted shares outstanding 60,101 60,479

Securities (Tables)

Securities (Tables)	3 Months Ended
	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Schedule of Debt Securities, Available-for-sale	The amortized cost, estimated fair value, and allowance for securities credit losses of debt securities available-for-sale and held-to-maturity at March 31, 2021 and December 31, 2020 are as follows (in thousands): Amortized Gross Gross Estimated Allowance for Credit Losses At March 31, 2021 Debt securities available-for-sale: U.S. government and agency obligations $ 169,337 $ 2,570 $ (8) $ 171,899 $ — Collateralized loan obligations (“CLOs”) 96,410 96 (40) 96,466 — Mortgage-backed securities - FNMA 144 2 — 146 — Total debt securities available-for-sale $ 265,891 $ 2,668 $ (48) $ 268,511 $ — Debt securities held-to-maturity: State, municipal and sovereign debt obligations 278,179 7,043 (1,106) 284,116 (90) Corporate debt securities 72,821 1,542 (1,912) 72,451 (1,511) Mortgage-backed securities: FHLMC 303,539 4,256 (3,178) 304,617 — FNMA 335,307 5,978 (2,481) 338,804 — GNMA 59,904 1,614 (23) 61,495 — SBA 5,190 — (58) 5,132 — Other 32,269 861 — 33,130 (116) Total mortgage-backed securities 736,209 12,709 (5,740) 743,178 (116) Total debt securities held-to-maturity $ 1,087,209 $ 21,294 $ (8,758) $ 1,099,745 $ (1,717) Total debt securities $ 1,353,100 $ 23,962 $ (8,806) $ 1,368,256 $ (1,717) Amortized Gross Gross Estimated Allowance for Credit Losses At December 31, 2020 Debt securities available-for-sale: U.S. government and agency obligations $ 173,790 $ 3,152 $ (2) $ 176,940 $ — CLOs 6,174 — (4) 6,170 — Mortgage-backed securities - FNMA 190 2 — 192 — Total debt securities available-for-sale $ 180,154 $ 3,154 $ (6) $ 183,302 $ — Debt securities held-to-maturity: State and municipal obligations 238,405 11,500 (231) 249,674 (48) Corporate debt securities 72,305 1,615 (2,652) 71,268 (1,550) Mortgage-backed securities: FHLMC 232,942 5,383 (124) 238,201 FNMA 293,615 7,640 (147) 301,108 GNMA 67,334 2,014 (12) 69,336 SBA 5,392 — (60) 5,332 Other 32,321 1,226 — 33,547 (117) Total mortgage-backed securities 631,604 16,263 (343) 647,524 (117) Total debt securities held-to-maturity $ 942,314 $ 29,378 $ (3,226) $ 968,466 $ (1,715) Total debt securities $ 1,122,468 $ 32,532 $ (3,232) $ 1,151,768 $ (1,715)
Schedule of Debt Securities, Held-to-maturity, Allowance for Credit Loss	The following table presents the activity in the allowance for credit losses for debt securities held-to-maturity for the three months ended March 31, 2021 and March 31, 2020 (in thousands): Three Months Ended March 31, 2021 2020 Allowance for credit losses Beginning balance $ (1,715) $ — Impact of CECL adoption — (1,268) Provision for credit loss expense (2) (1,261) Total ending allowance balance $ (1,717) $ (2,529)
Schedule of Carrying Value of Held-to-Maturity Investment Securities	The carrying value of the debt securities held-to-maturity at March 31, 2021 and December 31, 2020 is as follows (in thousands): March 31, 2021 December 31, 2020 Amortized cost $ 1,087,209 $ 942,314 Net loss on date of transfer from available-for-sale (13,347) (13,347) Allowance for securities credit loss (1,717) (1,715) Accretion of net unrealized loss on securities reclassified as held-to-maturity 10,181 10,001 Carrying value $ 1,082,326 $ 937,253 The realized and unrealized gains or losses on equity securities for the three months ended March 31, 2021 and March 31, 2020 are shown in the table below (in thousands): Three Months Ended March 31, 2021 2020 Net gain on equity investments $ 8,287 $ 155 Less: Net gains recognized on equity securities sold 8,123 — Unrealized gain recognized on equity securities still held $ 164 $ 155
Schedule of Amortized Cost and Estimated Fair Value of Investment Securities by Contractual Maturity	The amortized cost and estimated fair value of debt securities at March 31, 2021 by contractual maturity are shown below (in thousands). Actual maturities may differ from contractual maturities in instances where issuers have the right to call or prepay obligations with or without call or prepayment penalties. At March 31, 2021, corporate debt securities with an amortized cost of $54.3 million, and estimated fair value of $54.0 million, and CLOs with an amortized cost of $96.4 million, and estimated fair value of $96.5 million, were callable prior to the maturity date. March 31, 2021 Amortized Estimated Less than one year $ 105,213 $ 105,784 Due after one year through five years 189,783 194,363 Due after five years through ten years 164,010 162,249 Due after ten years 157,741 162,536 $ 616,747 $ 624,932
Summary of Estimated Fair Value and Unrealized Loss for Securities Available-for-Sale and Held-to-Maturity	The estimated fair value and unrealized losses for debt securities available-for-sale and held-to-maturity at March 31, 2021 and December 31, 2020, segregated by the duration of the unrealized losses, are as follows (in thousands): At March 31, 2021 Less than 12 months 12 months or longer Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Debt securities available-for-sale: U.S. government and agency obligations $ 10,139 $ (8) $ — $ — $ 10,139 $ (8) CLOs 47,053 (40) — — 47,053 (40) Total debt securities available-for-sale 57,192 (48) — — 57,192 (48) Debt securities held-to-maturity: State, municipal and sovereign debt obligations $ 50,696 $ (890) $ 5,748 $ (216) $ 56,444 $ (1,106) Corporate debt securities 39,041 (1,774) 3,818 (138) 42,859 (1,912) Mortgage-backed securities: FHLMC 158,632 (3,178) — — 158,632 (3,178) FNMA 163,103 (2,478) 293 (3) 163,396 (2,481) GNMA 6,104 (23) — — 6,104 (23) SBA 2,015 (48) 3,116 (10) 5,131 (58) Total mortgage-backed securities 329,854 (5,727) 3,409 (13) 333,263 (5,740) Total debt securities held-to-maturity 419,591 (8,391) 12,975 (367) 432,566 (8,758) Total debt securities $ 476,783 $ (8,439) $ 12,975 $ (367) $ 489,758 $ (8,806) At December 31, 2020 Less than 12 months 12 months or longer Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Debt securities available-for-sale: U.S. government and agency obligations $ 17,029 $ (2) $ — $ — $ 17,029 $ (2) CLOs 4,766 (4) — — 4,766 (4) Total debt securities available-for-sale 21,795 (6) — — 21,795 (6) Debt securities held-to-maturity: State and municipal obligations 2,823 (23) 7,509 (208) 10,332 (231) Corporate debt securities 10,192 (255) 35,935 (2,397) 46,127 (2,652) Mortgage-backed securities: FHLMC 24,661 (117) 669 (7) 25,330 (124) FNMA 39,365 (128) 939 (19) 40,304 (147) GNMA 5,856 (11) 207 (1) 6,063 (12) SBA 3,626 (12) 1,706 (48) 5,332 (60) Total mortgage-backed securities 73,508 (268) 3,521 (75) 77,029 (343) Total debt securities held-to-maturity 86,523 (546) 46,965 (2,680) 133,488 (3,226) Total debt securities $ 108,318 $ (552) $ 46,965 $ (2,680) $ 155,283 $ (3,232)
Schedule of Debt Securities, Held-to-maturity, Credit Quality Indicator	The following table summarized the amortized cost of debt securities held-to-maturity at March 31, 2021, aggregated by credit quality indicator (in thousands): AAA AA A BBB BB Total As of March 31, 2021 State, municipal and sovereign debt obligations $ 33,421 $ 138,734 $ 72,959 $ 33,065 $ — $ 278,179 Corporate debt securities — 497 11,995 48,995 11,334 72,821 Mortgage-backed securities - Other 11,111 21,158 — — — 32,269 Total debt securities held-to-maturity $ 44,532 $ 160,389 $ 84,954 $ 82,060 $ 11,334 $ 383,269

Loans Receivable, Net (Tables)

Loans Receivable, Net (Tables)	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Summary of Loans Receivable, Net	Loans receivable, net at March 31, 2021 and December 31, 2020 consisted of the following (in thousands): March 31, 2021 December 31, 2020 Commercial: Commercial and industrial (1) $ 498,245 $ 470,656 Commercial real estate – owner occupied 1,066,351 1,145,065 Commercial real estate – investor 3,804,351 3,491,464 Total commercial 5,368,947 5,107,185 Consumer: Residential real estate 2,189,348 2,309,459 Home equity loans and lines 267,591 285,016 Other consumer 46,651 54,446 Total consumer 2,503,590 2,648,921 Total loans receivable 7,872,537 7,756,106 Deferred origination costs, net 8,029 9,486 Allowance for loan credit losses (59,976) (60,735) Total loans receivable, net $ 7,820,590 $ 7,704,857
Summary of Risk Category of Loans by Loan Portfolio Segment Excluding PCI Loans	The following tables summarize total loans by year of origination, internally assigned credit grades and risk characteristics (in thousands): 2021 2020 2019 2018 2017 2016 and prior Revolving lines of credit Total March 31, 2021 Commercial and industrial Pass $ 68,908 $ 85,402 $ 35,616 $ 25,960 $ 13,952 $ 88,010 $ 161,358 $ 479,206 Special Mention — 334 1,866 776 1,328 706 2,029 7,039 Substandard — 567 1,279 881 754 2,033 6,486 12,000 Total commercial and industrial 68,908 86,303 38,761 27,617 16,034 90,749 169,873 498,245 Commercial real estate - owner occupied Pass 20,780 72,657 120,065 122,007 115,902 496,736 10,127 958,274 Special Mention — — 3,488 6,556 1,973 32,144 278 44,439 Substandard — — 14,377 8,926 2,874 36,912 549 63,638 Total commercial real estate - owner occupied 20,780 72,657 137,930 137,489 120,749 565,792 10,954 1,066,351 Commercial real estate - investor Pass 399,267 656,812 603,104 306,120 420,926 997,722 214,003 3,597,954 Special Mention — — 25,847 17,113 14,086 41,043 — 98,089 Substandard — 4,311 29,576 1,962 18,244 47,845 6,370 108,308 Total commercial real estate - investor 399,267 661,123 658,527 325,195 453,256 1,086,610 220,373 3,804,351 Residential real estate (1) Pass 122,744 553,741 387,283 188,276 145,840 789,192 — 2,187,076 Special Mention — — 198 — — 335 — 533 Substandard — — — — 221 1,518 — 1,739 Total residential real estate 122,744 553,741 387,481 188,276 146,061 791,045 — 2,189,348 Consumer (1) Pass 5,331 23,648 24,022 72,429 23,595 159,762 2,038 310,825 Special Mention — — 54 18 — 49 — 121 Substandard — — — 17 — 3,279 — 3,296 Total consumer 5,331 23,648 24,076 72,464 23,595 163,090 2,038 314,242 Total loans $ 617,030 $ 1,397,472 $ 1,246,775 $ 751,041 $ 759,695 $ 2,697,286 $ 403,238 $ 7,872,537 (1) For residential real estate and consumer loans, the Company evaluates credit quality based on the aging status of the loan and by payment activity. 2020 2019 2018 2017 2016 2015 and prior Revolving lines of credit Total December 31, 2020 Commercial and industrial Pass $ 137,262 $ 40,737 $ 27,967 $ 18,845 $ 33,568 $ 59,339 $ 134,140 $ 451,858 Special Mention 150 583 826 1,422 907 118 1,429 5,435 Substandard 581 1,284 1,243 809 439 1,706 7,301 13,363 Total commercial and industrial 137,993 42,604 30,036 21,076 34,914 61,163 142,870 470,656 Commercial real estate - owner occupied Pass 96,888 114,506 122,962 124,050 104,264 428,423 18,932 1,010,025 Special Mention — 3,512 8,240 1,023 17,115 17,811 439 48,140 Substandard — 34,670 9,001 3,404 3,677 35,509 639 86,900 Total commercial real estate - owner occupied 96,888 152,688 140,203 128,477 125,056 481,743 20,010 1,145,065 Commercial real estate - investor Pass 635,930 628,435 317,104 426,268 281,876 812,062 194,913 3,296,588 Special Mention — 15,979 17,113 15,225 4,234 55,872 149 108,572 Substandard 4,311 9,217 1,931 17,222 11,474 36,326 5,823 86,304 Total commercial real estate - investor 640,241 653,631 336,148 458,715 297,584 904,260 200,885 3,491,464 Residential real estate (1) Pass 595,982 437,593 226,435 166,773 146,237 729,037 — 2,302,057 Special Mention — 532 — — 446 2,186 — 3,164 Substandard 570 — 1,489 221 — 1,958 — 4,238 Total residential real estate 596,552 438,125 227,924 166,994 146,683 733,181 — 2,309,459 Consumer (1) Pass 24,954 26,659 83,296 25,469 16,565 156,276 2,145 335,364 Special Mention — — — — 150 382 — 532 Substandard — — — — — 3,566 — 3,566 Total consumer 24,954 26,659 83,296 25,469 16,715 160,224 2,145 339,462 Total loans $ 1,496,628 $ 1,313,707 $ 817,607 $ 800,731 $ 620,952 $ 2,340,571 $ 365,910 $ 7,756,106
Analysis of Allowance for Loan Losses	An analysis of the allowance for credit losses on loans for the three months ended March 31, 2021 and March 31, 2020 is as follows (in thousands): Commercial Commercial Commercial Residential Consumer Unallocated Total For the three months ended Allowance for credit losses on loans Balance at beginning of period $ 5,390 $ 15,054 $ 26,703 $ 11,818 $ 1,770 $ — $ 60,735 Credit loss (benefit) expense (2,875) (7,257) 10,149 (335) (721) — (1,039) Charge-offs — — (34) (242) (80) — (356) Recoveries 26 30 104 39 437 — 636 Balance at end of period $ 2,541 $ 7,827 $ 36,922 $ 11,280 $ 1,406 $ — $ 59,976 For the three months ended Allowance for credit losses on loans Balance at beginning of period $ 1,458 $ 2,893 $ 9,883 $ 2,002 $ 591 $ 25 $ 16,852 Impact of CECL adoption 2,416 (1,109) (5,395) 3,833 2,981 (25) 2,701 Credit loss expense (benefit) 1,529 1,286 2,377 3,585 (180) — 8,597 Initial allowance for credit losses on PCD loans 1,221 26 260 109 1,023 — 2,639 Charge-offs — — — (1,275) (109) — (1,384) Recoveries 25 — 34 163 8 — 230 Balance at end of period $ 6,649 $ 3,096 $ 7,159 $ 8,417 $ 4,314 $ — $ 29,635
Recorded Investment in Non-Accrual Loans by Loan Portfolio Segment Excluding PCI Loans	The following table presents the recorded investment in non-accrual loans by loan portfolio segment as of March 31, 2021 and December 31, 2020 (in thousands): March 31, 2021 December 31, 2020 Commercial and industrial $ 1,689 $ 1,908 Commercial real estate – owner occupied 12,345 13,751 Commercial real estate – investor 18,520 18,287 Residential real estate 6,422 8,671 Consumer 3,782 4,246 $ 42,758 $ 46,863
Aging of Recorded Investment in Past Due Loans Excluding PCI Loans	The following table presents the aging of the recorded investment in past due loans as of March 31, 2021 and December 31, 2020 by loan portfolio segment (in thousands): 30-59 60-89 90 Days or Greater Past Due Total Loans Not Total March 31, 2021 Commercial and industrial $ 169 $ 669 $ 394 $ 1,232 $ 497,013 $ 498,245 Commercial real estate – owner occupied 649 — 7,719 8,368 1,057,983 1,066,351 Commercial real estate – investor 3,377 — 9,047 12,424 3,791,927 3,804,351 Residential real estate 11,031 533 1,739 13,303 2,176,045 2,189,348 Consumer 1,873 120 3,298 5,291 308,951 314,242 $ 17,099 $ 1,322 $ 22,197 $ 40,618 $ 7,831,919 $ 7,872,537 December 31, 2020 Commercial and industrial $ 3,050 $ 628 $ 327 $ 4,005 $ 466,651 $ 470,656 Commercial real estate – owner occupied 1,015 — 7,871 8,886 1,136,179 1,145,065 Commercial real estate – investor 8,897 3,233 11,122 23,252 3,468,212 3,491,464 Residential real estate 15,156 3,164 4,238 22,558 2,286,901 2,309,459 Consumer 978 533 3,568 5,079 334,383 339,462 $ 29,096 $ 7,558 $ 27,126 $ 63,780 $ 7,692,326 $ 7,756,106
Troubled Debt Restructurings	The following table presents information about TDR loans which occurred during the three months ended March 31, 2021 and March 31, 2020 (dollars in thousands): Number of Loans Pre-modification Post-modification Three months ended March 31, 2021 Troubled debt restructurings: Consumer 2 $ 26 $ 33 Number of Loans Pre-modification Post-modification Three Months Ended March 31, 2020 Troubled debt restructurings: Consumer 4 $ 159 $ 177 Residential real estate 2 226 234 There were no TDR loans that defaulted during the three months ended March 31, 2021 and March 31, 2020 which were modified within the preceding year.

Deposits (Tables)

Deposits (Tables)	3 Months Ended
	Mar. 31, 2021
Banking and Thrift, Other Disclosures [Abstract]
Summary of Major Types of Deposits	The major types of deposits at March 31, 2021 and December 31, 2020 were as follows (in thousands): Type of Account March 31, 2021 December 31, 2020 Non-interest-bearing $ 2,417,935 $ 2,133,195 Interest-bearing checking 3,623,132 3,646,866 Money market deposit 782,459 783,521 Savings 1,568,528 1,491,251 Time deposits 1,110,758 1,372,783 Total deposits $ 9,502,812 $ 9,427,616

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Summary of Financial Assets and Financial Liabilities Measured at Fair Value	The following table summarizes financial assets and financial liabilities measured at fair value as of March 31, 2021 and December 31, 2020, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (in thousands): Fair Value Measurements at Reporting Date Using: Total Fair Level 1 Level 2 Level 3 March 31, 2021 Items measured on a recurring basis: Debt securities available-for-sale $ 268,511 $ — $ 268,511 $ — Equity investments 50,159 13,693 28,528 7,938 Interest rate swap asset 27,084 — 27,084 — Interest rate swap liability (27,160) — (27,160) — Items measured on a non-recurring basis: Other real estate owned 106 — — 106 Loans measured for impairment based on the fair value of the underlying collateral 33,747 — — 33,747 December 31, 2020 Items measured on a recurring basis: Debt securities available-for-sale $ 183,302 $ — $ 183,302 $ — Equity investments 107,079 104,539 — 2,540 Interest rate swap asset 45,289 — 45,289 — Interest rate swap liability (45,429) — (45,429) — Items measured on a non-recurring basis: Other real estate owned 106 — — 106 Loans measured for impairment based on the fair value of the underlying collateral 35,366 — — 35,366
Summary of Debt Securities, Available-for-sale	The following table reconciles, for the three months ended March 31, 2021, the beginning and ending balances for equity investments that are recognized at fair value on a recurring basis, in the consolidated statements of financial condition, using significant unobservable inputs (in thousands): Three Months Ended March 31, 2021 Beginning Balance $ 2,540 Total gains (losses) included in earnings 398 Purchases 5,000 Transfers into Level 3 — Transfers out of Level 3 — Ending Balance $ 7,938
Summary of Book Value and Estimated Fair Value of Bank's Significant Financial Instruments Not Recorded at Fair Value	The book value and estimated fair value of the Bank’s significant financial instruments not recorded at fair value as of March 31, 2021 and December 31, 2020 are presented in the following tables (in thousands): Fair Value Measurements at Reporting Date Using: Book Level 1 Level 2 Level 3 March 31, 2021 Financial Assets: Cash and due from banks $ 1,173,665 $ 1,173,665 $ — $ — Debt securities held-to-maturity 1,082,326 — 1,081,590 18,155 Restricted equity investments 52,199 — — 52,199 Loans receivable, net and loans held-for-sale 7,863,765 — — 7,822,353 Financial Liabilities: Deposits other than time deposits 8,392,054 — 8,392,054 — Time deposits 1,110,758 — 1,118,867 — Other borrowings 228,176 — 241,122 — Securities sold under agreements to repurchase with retail customers 134,465 134,465 — — December 31, 2020 Financial Assets: Cash and due from banks $ 1,272,134 $ 1,272,134 $ — $ — Debt securities held-to-maturity 937,253 — 952,365 16,101 Restricted equity investments 51,705 — — 51,705 Loans receivable, net and loans held-for-sale 7,750,381 — — 7,806,743 Financial Liabilities: Deposits other than time deposits 8,054,833 — 8,054,833 — Time deposits 1,372,783 — 1,383,173 — FHLB advances and other borrowings 235,471 — 251,798 — Securities sold under agreements to repurchase with retail customers 128,454 128,454 — —

Derivatives, Hedging Activiti_2

Derivatives, Hedging Activities, and Other Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts and Fair Value of Outstanding Derivative Positions	The table below presents the fair value of derivatives not designated as hedging instruments as well as their location on the consolidated statements of financial condition (in thousands): Fair Value Balance Sheet Location March 31, 2021 December 31, 2020 Other assets $ 27,084 $ 45,289 Other liabilities 27,160 45,429

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Schedule of Right-of-Use Assets and Lease Liabilities	The following table represents the classification of the Company’s right-of-use (“ROU”) assets and lease liabilities on the consolidated statements of financial condition (in thousands): March 31, 2021 December 31, 2020 Lease ROU Assets Classification Operating lease ROU asset Other assets $ 21,616 $ 22,555 Finance lease ROU asset Premises and equipment, net 1,644 1,694 Total lease ROU asset $ 23,260 $ 24,249 Lease Liabilities Operating lease liability Other liabilities $ 22,090 $ 22,990 Finance lease liability Other borrowings 2,052 2,100 Total lease liability $ 24,142 $ 25,090
Schedule of Weighted Average Remaining Lease Term and Discount Rate	March 31, 2021 December 31, 2020 Weighted-Average Remaining Lease Term Operating leases 7.72 years 7.77 years Finance lease 8.35 years 8.59 years Weighted-Average Discount Rate Operating leases 3.00 % 3.01 % Finance lease 5.63 % 5.63 %
Schedule of Lease Costs and Other Lease Information	The following table represents lease expenses and other lease information (in thousands): Three Months Ended March 31, 2021 March 31, 2020 Lease Expense Operating lease expense $ 1,490 $ 1,723 Finance lease expense: Amortization of ROU assets 50 40 Interest on lease liabilities (1) 29 27 Total $ 1,569 $ 1,790 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,450 $ 1,648 Operating cash flows from finance leases 29 27 Financing cash flows from finance leases 48 47 (1) Included in borrowed funds interest expense on the consolidated statements of income. All other costs are included in occupancy expense.
Schedule of Future Minimum Payments for Finance Leases	Future minimum payments for the finance lease and operating leases with initial or remaining terms of one year or more as of March 31, 2021 were as follows (in thousands): Finance Lease Operating Leases For the Twelve Months Ended March 31, 2022 $ 307 $ 5,836 2023 307 4,292 2024 307 3,190 2025 307 2,739 2026 307 2,154 Thereafter 1,028 7,164 Total $ 2,563 $ 25,375 Less: Imputed interest (511) (3,285) Total lease liabilities $ 2,052 $ 22,090
Schedule of Future Minimum Payments for Operating Leases	Future minimum payments for the finance lease and operating leases with initial or remaining terms of one year or more as of March 31, 2021 were as follows (in thousands): Finance Lease Operating Leases For the Twelve Months Ended March 31, 2022 $ 307 $ 5,836 2023 307 4,292 2024 307 3,190 2025 307 2,739 2026 307 2,154 Thereafter 1,028 7,164 Total $ 2,563 $ 25,375 Less: Imputed interest (511) (3,285) Total lease liabilities $ 2,052 $ 22,090

Business Combinations - Additio

Business Combinations - Additional Information (Details) $ in Thousands	Jan. 01, 2020USD ($)	Mar. 31, 2021USD ($)property
Core Deposits
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life		10 years
Two River Bancorp Inc.
Business Acquisition [Line Items]
Purchase accounting adjustments, assets	$ 1,111,621
Purchase accounting adjustments, loans	940,072
Purchase accounting adjustments, deposits	941,750
Total consideration paid	197,050
Cash consideration	48,400
Number of properties subject to lease agreement | property		14
Core deposit intangible	12,130	$ 12,100
Country Bank Holding Company, Inc
Business Acquisition [Line Items]
Purchase accounting adjustments, assets	793,680
Purchase accounting adjustments, loans	618,408
Purchase accounting adjustments, deposits	652,653
Total consideration paid	112,836
Number of properties subject to lease agreement | property		5
Core deposit intangible	$ 2,117	$ 2,100

Business Combinations - Summary

Business Combinations - Summary of Assets Acquired and Liabilities Assumed and Their Initial Fair Value Estimates (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Mar. 31, 2021	Dec. 31, 2020
Assets acquired:
Bank owned life insurance		$ 264,548	$ 265,253
Liabilities assumed:
Goodwill recorded in the merger		500,319	$ 500,319
Two River Bancorp Inc.
Estimated Fair Value
Total purchase price:	$ 197,050
Assets acquired:
Cash and cash equivalents	51,102
Securities	64,381
Loans	940,072
Accrued interest receivable	2,382
Bank owned life insurance	22,440
Deferred tax asset	3,158
Other assets	15,956
Core deposit intangible	12,130	12,100
Total assets acquired	1,111,621
Liabilities assumed:
Deposits	(941,750)
Other liabilities	(59,026)
Total liabilities assumed	(1,000,776)
Net assets acquired	110,845
Goodwill recorded in the merger	86,205
Country Bank Holding Company, Inc
Estimated Fair Value
Total purchase price:	112,836
Assets acquired:
Cash and cash equivalents	20,799
Securities	144,499
Loans	618,408
Accrued interest receivable	1,779
Deferred tax asset	(3,117)
Other assets	9,195
Core deposit intangible	2,117	$ 2,100
Total assets acquired	793,680
Liabilities assumed:
Deposits	(652,653)
Other liabilities	(67,240)
Total liabilities assumed	(719,893)
Net assets acquired	73,787
Goodwill recorded in the merger	$ 39,049

Earnings per Share - Reconcilia

Earnings per Share - Reconciliation of Shares Outstanding for Basic and Diluted Earnings per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Weighted average shares outstanding (in shares)	60,300	60,362
Less: Unallocated ESOP shares (in shares)	(386)	(460)
Unallocated incentive award shares (in shares)	(74)	(26)
Average basic shares outstanding (in shares)	59,840	59,876
Add: Effect of dilutive securities:
Incentive awards (in shares)	261	603
Average diluted shares outstanding (in shares)	60,101	60,479

Earnings per Share - Additional

Earnings per Share - Additional Information (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Antidilutive stock options excluded from earnings per share calculations (shares)	1,672	1,033

Securities - Amortized Cost and

Securities - Amortized Cost and Estimated Fair Value of Securities Available-for-Sale and Held-to-Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	$ 265,891	$ 180,154
Available-for-sale, gross unrealized gains	2,668	3,154
Available-for-sale, gross unrealized losses	(48)	(6)
Available-for-sale, estimated fair value	268,511	183,302
Allowance for Credit Losses	0	0
Held-to-maturity, amortized cost	1,087,209	942,314
Held-to-maturity, gross unrealized gains	21,294	29,378
Held-to-maturity, gross unrealized losses	(8,758)	(3,226)
Securities held-to-maturity, net encumbered	1,099,745	968,466
Allowance for Credit Losses	(1,717)	(1,715)
Total, amortized cost	1,353,100	1,122,468
Total, gross unrealized gains	23,962	32,532
Total, gross unrealized losses	(8,806)	(3,232)
Total, estimated fair value	1,368,256	1,151,768
Other
Securities Financing Transaction [Line Items]
Held-to-maturity, amortized cost	32,269
U.S. government and agency obligations | Securities investment
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	169,337	173,790
Available-for-sale, gross unrealized gains	2,570	3,152
Available-for-sale, gross unrealized losses	(8)	(2)
Available-for-sale, estimated fair value	171,899	176,940
Allowance for Credit Losses	0	0
Collateralized loan obligations (“CLOs”) | Securities investment
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	96,410	6,174
Available-for-sale, gross unrealized gains	96	0
Available-for-sale, gross unrealized losses	(40)	(4)
Available-for-sale, estimated fair value	96,466	6,170
Allowance for Credit Losses	0	0
State, municipal and sovereign debt obligations | Securities investment
Securities Financing Transaction [Line Items]
Held-to-maturity, amortized cost	278,179	238,405
Held-to-maturity, gross unrealized gains	7,043	11,500
Held-to-maturity, gross unrealized losses	(1,106)	(231)
Securities held-to-maturity, net encumbered	284,116	249,674
Allowance for Credit Losses	(90)	(48)
Corporate debt securities | Securities investment
Securities Financing Transaction [Line Items]
Held-to-maturity, amortized cost	72,821	72,305
Held-to-maturity, gross unrealized gains	1,542	1,615
Held-to-maturity, gross unrealized losses	(1,912)	(2,652)
Securities held-to-maturity, net encumbered	72,451	71,268
Allowance for Credit Losses	(1,511)	(1,550)
Mortgage-backed securities - FNMA
Securities Financing Transaction [Line Items]
Held-to-maturity, amortized cost	736,209	631,604
Held-to-maturity, gross unrealized gains	12,709	16,263
Held-to-maturity, gross unrealized losses	(5,740)	(343)
Securities held-to-maturity, net encumbered	743,178	647,524
Allowance for Credit Losses	(116)	(117)
Mortgage-backed securities - FNMA | FHLMC
Securities Financing Transaction [Line Items]
Held-to-maturity, amortized cost	303,539	232,942
Held-to-maturity, gross unrealized gains	4,256	5,383
Held-to-maturity, gross unrealized losses	(3,178)	(124)
Securities held-to-maturity, net encumbered	304,617	238,201
Allowance for Credit Losses	0
Mortgage-backed securities - FNMA | FNMA
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	144	190
Available-for-sale, gross unrealized gains	2	2
Available-for-sale, gross unrealized losses	0	0
Available-for-sale, estimated fair value	146	192
Allowance for Credit Losses	0	0
Held-to-maturity, amortized cost	335,307	293,615
Held-to-maturity, gross unrealized gains	5,978	7,640
Held-to-maturity, gross unrealized losses	(2,481)	(147)
Securities held-to-maturity, net encumbered	338,804	301,108
Allowance for Credit Losses	0
Mortgage-backed securities - FNMA | GNMA
Securities Financing Transaction [Line Items]
Held-to-maturity, amortized cost	59,904	67,334
Held-to-maturity, gross unrealized gains	1,614	2,014
Held-to-maturity, gross unrealized losses	(23)	(12)
Securities held-to-maturity, net encumbered	61,495	69,336
Allowance for Credit Losses	0
Mortgage-backed securities - FNMA | SBA
Securities Financing Transaction [Line Items]
Held-to-maturity, amortized cost	5,190	5,392
Held-to-maturity, gross unrealized gains	0	0
Held-to-maturity, gross unrealized losses	(58)	(60)
Securities held-to-maturity, net encumbered	5,132	5,332
Allowance for Credit Losses	0
Mortgage-backed securities - FNMA | Other
Securities Financing Transaction [Line Items]
Held-to-maturity, amortized cost	32,269	32,321
Held-to-maturity, gross unrealized gains	861	1,226
Held-to-maturity, gross unrealized losses	0	0
Securities held-to-maturity, net encumbered	33,130	33,547
Allowance for Credit Losses	$ (116)	$ (117)

Securities - Additional Informa

Securities - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2013	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, allowance for credit loss	$ 0			$ 0
Available-for-sale securities transferred to held-to-maturity securities			$ 536,000,000
Unrealized net loss on securities transferred from available-for-sale to held-to-maturity, gross			$ 13,300,000
Realized gain or losses on the sale of available-for-sale securities	0	$ 0
Corporate debt securities, callable, amortized cost	54,300,000
Corporate debt securities, callable, estimated fair value	54,000,000
Securities pledged for other debt obligations, at fair value	533,000,000			435,900,000
Equity investments, at estimated fair value	50,159,000			107,079,000
Reverse Repurchase Agreement
Debt Securities, Available-for-sale [Line Items]
Securities pledged for repurchase agreements, at fair value	147,000,000			$ 152,700,000
CLOs
Debt Securities, Available-for-sale [Line Items]
Corporate debt securities, callable, amortized cost	96,400,000
Corporate debt securities, callable, estimated fair value	$ 96,500,000

Securities - Allowance for Cred

Securities - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Allowance for credit losses
Beginning balance	$ (1,715)
Total ending allowance balance	(1,717)
Securities investment
Allowance for credit losses
Beginning balance	(1,715)	$ 0
Provision for credit loss expense	(2)	(1,261)
Total ending allowance balance	(1,717)	(2,529)
Cumulative Effect, Period Of Adoption, Adjustment | Securities investment
Allowance for credit losses
Beginning balance	$ 0	$ (1,268)

Securities - Carrying Value of

Securities - Carrying Value of Held-to-Maturity Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Amortized cost	$ 1,087,209	$ 942,314
Net loss on date of transfer from available-for-sale	(13,347)	(13,347)
Allowance for securities credit loss	(1,717)	(1,715)
Accretion of net unrealized loss on securities reclassified as held-to-maturity	10,181	10,001
Carrying value	$ 1,082,326	$ 937,253

Securities - Amortized Cost a_2

Securities - Amortized Cost and Estimated Fair Value of Investment Securities by Contractual Maturity (Details) $ in Thousands	Mar. 31, 2021USD ($)
Amortized Cost
Less than one year	$ 105,213
Due after one year through five years	189,783
Due after five years through ten years	164,010
Due after ten years	157,741
Total amortized cost	616,747
Estimated Fair Value
Less than one year	105,784
Due after one year through five years	194,363
Due after five years through ten years	162,249
Due after ten years	162,536
Total estimated fair value	$ 624,932

Securities - Estimated Fair Val

Securities - Estimated Fair Value and Unrealized Loss for Securities Available-for-Sale and Held-to-Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Available-for-sale, less than 12 months, estimated fair value	$ 57,192	$ 21,795
Available-for-sale, less than 12 months, unrealized losses	(48)	(6)
Available-for-sale, 12 months or longer, estimated fair value	0	0
Available-for-sale, 12 months or longer, unrealized losses	0	0
Available-for-sale, total, estimated fair value	57,192	21,795
Available-for-sale, total, unrealized losses	(48)	(6)
Held-to-maturity, less than 12 months, estimated fair value	419,591	86,523
Held-to-maturity, less than 12 months, unrealized losses	(8,391)	(546)
Held-to-maturity, 12 months or longer, estimated fair value	12,975	46,965
Held-to-maturity, 12 months or longer, unrealized losses	(367)	(2,680)
Held-to-maturity, total, estimated fair value	432,566	133,488
Held-to-maturity, total, unrealized losses	(8,758)	(3,226)
Total securities, less than 12 months, estimated fair value	476,783	108,318
Total securities, less than 12 months, unrealized losses	(8,439)	(552)
Total securities, 12 months or longer, estimated fair value	12,975	46,965
Total securities, 12 months or longer, unrealized losses	(367)	(2,680)
Total securities, estimated fair value	489,758	155,283
Total securities, unrealized losses	(8,806)	(3,232)
U.S. government and agency obligations | Securities investment
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Available-for-sale, less than 12 months, estimated fair value	10,139	17,029
Available-for-sale, less than 12 months, unrealized losses	(8)	(2)
Available-for-sale, 12 months or longer, estimated fair value	0	0
Available-for-sale, 12 months or longer, unrealized losses	0	0
Available-for-sale, total, estimated fair value	10,139	17,029
Available-for-sale, total, unrealized losses	(8)	(2)
CLOs
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Available-for-sale, less than 12 months, estimated fair value		4,766
Available-for-sale, less than 12 months, unrealized losses		(4)
Available-for-sale, 12 months or longer, estimated fair value		0
Available-for-sale, 12 months or longer, unrealized losses		0
Available-for-sale, total, estimated fair value		4,766
Available-for-sale, total, unrealized losses		(4)
CLOs | Securities investment
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Available-for-sale, less than 12 months, estimated fair value	47,053
Available-for-sale, less than 12 months, unrealized losses	(40)
Available-for-sale, 12 months or longer, estimated fair value	0
Available-for-sale, 12 months or longer, unrealized losses	0
Available-for-sale, total, estimated fair value	47,053
Available-for-sale, total, unrealized losses	(40)
State, municipal and sovereign debt obligations | Securities investment
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Held-to-maturity, less than 12 months, estimated fair value	50,696	2,823
Held-to-maturity, less than 12 months, unrealized losses	(890)	(23)
Held-to-maturity, 12 months or longer, estimated fair value	5,748	7,509
Held-to-maturity, 12 months or longer, unrealized losses	(216)	(208)
Held-to-maturity, total, estimated fair value	56,444	10,332
Held-to-maturity, total, unrealized losses	(1,106)	(231)
Corporate debt securities | Securities investment
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Held-to-maturity, less than 12 months, estimated fair value	39,041	10,192
Held-to-maturity, less than 12 months, unrealized losses	(1,774)	(255)
Held-to-maturity, 12 months or longer, estimated fair value	3,818	35,935
Held-to-maturity, 12 months or longer, unrealized losses	(138)	(2,397)
Held-to-maturity, total, estimated fair value	42,859	46,127
Held-to-maturity, total, unrealized losses	(1,912)	(2,652)
Mortgage-backed securities - FNMA
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Held-to-maturity, less than 12 months, estimated fair value	329,854	73,508
Held-to-maturity, less than 12 months, unrealized losses	(5,727)	(268)
Held-to-maturity, 12 months or longer, estimated fair value	3,409	3,521
Held-to-maturity, 12 months or longer, unrealized losses	(13)	(75)
Held-to-maturity, total, estimated fair value	333,263	77,029
Held-to-maturity, total, unrealized losses	(5,740)	(343)
Mortgage-backed securities - FNMA | FHLMC
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Held-to-maturity, less than 12 months, estimated fair value	158,632	24,661
Held-to-maturity, less than 12 months, unrealized losses	(3,178)	(117)
Held-to-maturity, 12 months or longer, estimated fair value	0	669
Held-to-maturity, 12 months or longer, unrealized losses	0	(7)
Held-to-maturity, total, estimated fair value	158,632	25,330
Held-to-maturity, total, unrealized losses	(3,178)	(124)
Mortgage-backed securities - FNMA | FNMA
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Held-to-maturity, less than 12 months, estimated fair value	163,103	39,365
Held-to-maturity, less than 12 months, unrealized losses	(2,478)	(128)
Held-to-maturity, 12 months or longer, estimated fair value	293	939
Held-to-maturity, 12 months or longer, unrealized losses	(3)	(19)
Held-to-maturity, total, estimated fair value	163,396	40,304
Held-to-maturity, total, unrealized losses	(2,481)	(147)
Mortgage-backed securities - FNMA | GNMA
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Held-to-maturity, less than 12 months, estimated fair value	6,104	5,856
Held-to-maturity, less than 12 months, unrealized losses	(23)	(11)
Held-to-maturity, 12 months or longer, estimated fair value	0	207
Held-to-maturity, 12 months or longer, unrealized losses	0	(1)
Held-to-maturity, total, estimated fair value	6,104	6,063
Held-to-maturity, total, unrealized losses	(23)	(12)
Mortgage-backed securities - FNMA | SBA
Schedule Of Available For Sale Securities And Held To Maturity Securities [Line Items]
Held-to-maturity, less than 12 months, estimated fair value	2,015	3,626
Held-to-maturity, less than 12 months, unrealized losses	(48)	(12)
Held-to-maturity, 12 months or longer, estimated fair value	3,116	1,706
Held-to-maturity, 12 months or longer, unrealized losses	(10)	(48)
Held-to-maturity, total, estimated fair value	5,131	5,332
Held-to-maturity, total, unrealized losses	$ (58)	$ (60)

Securities - Credit Quality Ind

Securities - Credit Quality Indicator (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	$ 1,087,209	$ 942,314
Investment And Mortgage-Backed Securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	383,269
Investment And Mortgage-Backed Securities | AAA
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	44,532
Investment And Mortgage-Backed Securities | AA
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	160,389
Investment And Mortgage-Backed Securities | A
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	84,954
Investment And Mortgage-Backed Securities | BBB
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	82,060
Investment And Mortgage-Backed Securities | BB
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	11,334
Securities investment | State, municipal and sovereign debt obligations
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	278,179	238,405
Securities investment | State, municipal and sovereign debt obligations | AAA
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	33,421
Securities investment | State, municipal and sovereign debt obligations | AA
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	138,734
Securities investment | State, municipal and sovereign debt obligations | A
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	72,959
Securities investment | State, municipal and sovereign debt obligations | BBB
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	33,065
Securities investment | State, municipal and sovereign debt obligations | BB
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	0
Securities investment | Corporate debt securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	72,821	$ 72,305
Securities investment | Corporate debt securities | AAA
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	0
Securities investment | Corporate debt securities | AA
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	497
Securities investment | Corporate debt securities | A
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	11,995
Securities investment | Corporate debt securities | BBB
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	48,995
Securities investment | Corporate debt securities | BB
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	11,334
Other
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	32,269
Other | AAA
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	11,111
Other | AA
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	21,158
Other | A
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	0
Other | BBB
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	0
Other | BB
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	$ 0

Securities - Equity Securities

Securities - Equity Securities Realized Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Net gain on equity investments	$ 8,287	$ 155
Less: Net gains recognized on equity securities sold	8,123	0
Unrealized gain recognized on equity securities still held	$ 164	$ 155

Loans Receivable, Net - Compone

Loans Receivable, Net - Components of Loans Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	$ 7,872,537	$ 7,756,106
Deferred origination costs, net	8,029	9,486
Allowance for loan credit losses	(59,976)	(60,735)	$ (29,635)	$ (16,852)
Total loans receivable, net	7,820,590	7,704,857
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	5,368,947	5,107,185
Commercial | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	498,245	470,656
Commercial | Commercial and industrial | Paycheck Protection Program
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	109,700	95,400
Commercial | Commercial real estate – owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	1,066,351	1,145,065
Commercial | Commercial real estate – investor
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	3,804,351	3,491,464
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	2,503,590	2,648,921
Allowance for loan credit losses	(1,406)	(1,770)	$ (4,314)	$ (591)
Consumer | Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	2,189,348	2,309,459
Consumer | Home equity loans and lines
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	267,591	285,016
Consumer | Other consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	$ 46,651	$ 54,446

Loans Receivable, Net - Credit

Loans Receivable, Net - Credit Grades and Risk Characteristics (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 617,030	$ 1,496,628
2020	1,397,472	1,313,707
2019	1,246,775	817,607
2018	751,041	800,731
2017	759,695	620,952
2016 and prior	2,697,286	2,340,571
Revolving lines of credit	403,238	365,910
Total	7,872,537	7,756,106
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	68,908	137,993
2020	86,303	42,604
2019	38,761	30,036
2018	27,617	21,076
2017	16,034	34,914
2016 and prior	90,749	61,163
Revolving lines of credit	169,873	142,870
Total	498,245	470,656
Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	68,908	137,262
2020	85,402	40,737
2019	35,616	27,967
2018	25,960	18,845
2017	13,952	33,568
2016 and prior	88,010	59,339
Revolving lines of credit	161,358	134,140
Total	479,206	451,858
Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	150
2020	334	583
2019	1,866	826
2018	776	1,422
2017	1,328	907
2016 and prior	706	118
Revolving lines of credit	2,029	1,429
Total	7,039	5,435
Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	581
2020	567	1,284
2019	1,279	1,243
2018	881	809
2017	754	439
2016 and prior	2,033	1,706
Revolving lines of credit	6,486	7,301
Total	12,000	13,363
Commercial real estate – owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2021	20,780	96,888
2020	72,657	152,688
2019	137,930	140,203
2018	137,489	128,477
2017	120,749	125,056
2016 and prior	565,792	481,743
Revolving lines of credit	10,954	20,010
Total	1,066,351	1,145,065
Commercial real estate – owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	20,780	96,888
2020	72,657	114,506
2019	120,065	122,962
2018	122,007	124,050
2017	115,902	104,264
2016 and prior	496,736	428,423
Revolving lines of credit	10,127	18,932
Total	958,274	1,010,025
Commercial real estate – owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	3,512
2019	3,488	8,240
2018	6,556	1,023
2017	1,973	17,115
2016 and prior	32,144	17,811
Revolving lines of credit	278	439
Total	44,439	48,140
Commercial real estate – owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	34,670
2019	14,377	9,001
2018	8,926	3,404
2017	2,874	3,677
2016 and prior	36,912	35,509
Revolving lines of credit	549	639
Total	63,638	86,900
Commercial real estate – investor
Financing Receivable, Credit Quality Indicator [Line Items]
2021	399,267	640,241
2020	661,123	653,631
2019	658,527	336,148
2018	325,195	458,715
2017	453,256	297,584
2016 and prior	1,086,610	904,260
Revolving lines of credit	220,373	200,885
Total	3,804,351	3,491,464
Commercial real estate – investor | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	399,267	635,930
2020	656,812	628,435
2019	603,104	317,104
2018	306,120	426,268
2017	420,926	281,876
2016 and prior	997,722	812,062
Revolving lines of credit	214,003	194,913
Total	3,597,954	3,296,588
Commercial real estate – investor | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	15,979
2019	25,847	17,113
2018	17,113	15,225
2017	14,086	4,234
2016 and prior	41,043	55,872
Revolving lines of credit	0	149
Total	98,089	108,572
Commercial real estate – investor | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	4,311
2020	4,311	9,217
2019	29,576	1,931
2018	1,962	17,222
2017	18,244	11,474
2016 and prior	47,845	36,326
Revolving lines of credit	6,370	5,823
Total	108,308	86,304
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,503,590	2,648,921
Consumer | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	122,744	596,552
2020	553,741	438,125
2019	387,481	227,924
2018	188,276	166,994
2017	146,061	146,683
2016 and prior	791,045	733,181
Revolving lines of credit	0	0
Total	2,189,348	2,309,459
Consumer | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	5,331	24,954
2020	23,648	26,659
2019	24,076	83,296
2018	72,464	25,469
2017	23,595	16,715
2016 and prior	163,090	160,224
Revolving lines of credit	2,038	2,145
Total	314,242	339,462
Consumer | Pass | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	122,744	595,982
2020	553,741	437,593
2019	387,283	226,435
2018	188,276	166,773
2017	145,840	146,237
2016 and prior	789,192	729,037
Revolving lines of credit	0	0
Total	2,187,076	2,302,057
Consumer | Pass | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	5,331	24,954
2020	23,648	26,659
2019	24,022	83,296
2018	72,429	25,469
2017	23,595	16,565
2016 and prior	159,762	156,276
Revolving lines of credit	2,038	2,145
Total	310,825	335,364
Consumer | Special Mention | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	532
2019	198	0
2018	0	0
2017	0	446
2016 and prior	335	2,186
Revolving lines of credit	0	0
Total	533	3,164
Consumer | Special Mention | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	54	0
2018	18	0
2017	0	150
2016 and prior	49	382
Revolving lines of credit	0	0
Total	121	532
Consumer | Substandard | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	570
2020	0	0
2019	0	1,489
2018	0	221
2017	221	0
2016 and prior	1,518	1,958
Revolving lines of credit	0	0
Total	1,739	4,238
Consumer | Substandard | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	17	0
2017	0	0
2016 and prior	3,279	3,566
Revolving lines of credit	0	0
Total	$ 3,296	$ 3,566

Loans Receivable, Net - Allowan

Loans Receivable, Net - Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method Excluding PCI Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Allowance for credit losses on loans
Balance at beginning of period	$ 60,735	$ 16,852
Credit loss expense (benefit)	(1,039)	8,597
Initial allowance for credit losses on PCD loans		2,639
Charge-offs	(356)	(1,384)
Recoveries	636	230
Balance at end of period	59,976	29,635
Cumulative Effect, Period Of Adoption, Adjustment
Allowance for credit losses on loans
Balance at beginning of period		2,701
Commercial and industrial
Allowance for credit losses on loans
Balance at beginning of period	5,390	1,458
Credit loss expense (benefit)	(2,875)	1,529
Initial allowance for credit losses on PCD loans		1,221
Charge-offs	0	0
Recoveries	26	25
Balance at end of period	2,541	6,649
Commercial and industrial | Cumulative Effect, Period Of Adoption, Adjustment
Allowance for credit losses on loans
Balance at beginning of period		2,416
Commercial real estate – owner occupied
Allowance for credit losses on loans
Balance at beginning of period	15,054	2,893
Credit loss expense (benefit)	(7,257)	1,286
Initial allowance for credit losses on PCD loans		26
Charge-offs	0	0
Recoveries	30	0
Balance at end of period	7,827	3,096
Commercial real estate – owner occupied | Cumulative Effect, Period Of Adoption, Adjustment
Allowance for credit losses on loans
Balance at beginning of period		(1,109)
Commercial Real Estate – Investor
Allowance for credit losses on loans
Balance at beginning of period	26,703	9,883
Credit loss expense (benefit)	10,149	2,377
Initial allowance for credit losses on PCD loans		260
Charge-offs	(34)	0
Recoveries	104	34
Balance at end of period	36,922	7,159
Commercial Real Estate – Investor | Cumulative Effect, Period Of Adoption, Adjustment
Allowance for credit losses on loans
Balance at beginning of period		(5,395)
Residential Real Estate
Allowance for credit losses on loans
Balance at beginning of period	11,818	2,002
Credit loss expense (benefit)	(335)	3,585
Initial allowance for credit losses on PCD loans		109
Charge-offs	(242)	(1,275)
Recoveries	39	163
Balance at end of period	11,280	8,417
Residential Real Estate | Cumulative Effect, Period Of Adoption, Adjustment
Allowance for credit losses on loans
Balance at beginning of period		3,833
Consumer
Allowance for credit losses on loans
Balance at beginning of period	1,770	591
Credit loss expense (benefit)	(721)	(180)
Initial allowance for credit losses on PCD loans		1,023
Charge-offs	(80)	(109)
Recoveries	437	8
Balance at end of period	1,406	4,314
Consumer | Cumulative Effect, Period Of Adoption, Adjustment
Allowance for credit losses on loans
Balance at beginning of period		2,981
Unallocated
Allowance for credit losses on loans
Balance at beginning of period	0	25
Credit loss expense (benefit)	0	0
Initial allowance for credit losses on PCD loans		0
Charge-offs	0	0
Recoveries	0	0
Balance at end of period	$ 0	0
Unallocated | Cumulative Effect, Period Of Adoption, Adjustment
Allowance for credit losses on loans
Balance at beginning of period		$ (25)

Loans Receivable, Net - Additio

Loans Receivable, Net - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables 90 days past due and still accruing	$ 0	$ 0
Troubled debt restructured loans	16,600,000	17,500,000
Non-accrual loan total troubled debt restructurings	5,100,000	5,500,000
Specific reserves to loans accruing troubled debt restructurings	0	0
Troubled debt restructured loans with accrual interest	11,500,000	12,000,000
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in mortgage and consumer loans collateralized, foreclosure amount	1,600,000	1,900,000
Commercial real estate – owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in mortgage and consumer loans collateralized, foreclosure amount	12,300,000	13,800,000
Commercial Real Estate – Investor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in mortgage and consumer loans collateralized, foreclosure amount	18,500,000	18,300,000
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in mortgage and consumer loans collateralized, foreclosure amount	1,300,000	1,400,000
Foreclosed property held	$ 106,000	$ 106,000

Loans Receivable, Net - Recorde

Loans Receivable, Net - Recorded Investment in Non-Accrual Loans by Loan Portfolio Segment Excluding PCI Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Loans with non-accrual of interest	$ 42,758	$ 46,863
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans with non-accrual of interest	1,689	1,908
Commercial real estate – owner occupied
Financing Receivable, Past Due [Line Items]
Loans with non-accrual of interest	12,345	13,751
Commercial real estate – investor
Financing Receivable, Past Due [Line Items]
Loans with non-accrual of interest	18,520	18,287
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans with non-accrual of interest	6,422	8,671
Consumer
Financing Receivable, Past Due [Line Items]
Loans with non-accrual of interest	$ 3,782	$ 4,246

Loans Receivable, Net - Aging o

Loans Receivable, Net - Aging of Recorded Investment in Past Due Loans Excluding PCI Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 40,618	$ 63,780
90 Days or Greater Past Due	22,197	27,126
Loans Not Past Due	7,831,919	7,692,326
Total	7,872,537	7,756,106
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	17,099	29,096
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,322	7,558
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Past Due	1,232	4,005
90 Days or Greater Past Due	394	327
Loans Not Past Due	497,013	466,651
Total	498,245	470,656
Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	169	3,050
Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	669	628
Commercial real estate – owner occupied
Financing Receivable, Past Due [Line Items]
Total Past Due	8,368	8,886
90 Days or Greater Past Due	7,719	7,871
Loans Not Past Due	1,057,983	1,136,179
Total	1,066,351	1,145,065
Commercial real estate – owner occupied | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	649	1,015
Commercial real estate – owner occupied | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial real estate – investor
Financing Receivable, Past Due [Line Items]
Total Past Due	12,424	23,252
90 Days or Greater Past Due	9,047	11,122
Loans Not Past Due	3,791,927	3,468,212
Total	3,804,351	3,491,464
Commercial real estate – investor | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,377	8,897
Commercial real estate – investor | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	3,233
Residential real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	13,303	22,558
90 Days or Greater Past Due	1,739	4,238
Loans Not Past Due	2,176,045	2,286,901
Total	2,189,348	2,309,459
Residential real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	11,031	15,156
Residential real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	533	3,164
Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	5,291	5,079
90 Days or Greater Past Due	3,298	3,568
Loans Not Past Due	308,951	334,383
Total	314,242	339,462
Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,873	978
Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 120	$ 533

Loans Receivable, Net - Trouble

Loans Receivable, Net - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)loan	Mar. 31, 2020USD ($)loan
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2	4
Pre-modification Recorded Investment	$ 26	$ 159
Post-modification Recorded Investment	$ 33	$ 177
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan		2
Pre-modification Recorded Investment		$ 226
Post-modification Recorded Investment		$ 234

Deposits - Summary of Major Typ

Deposits - Summary of Major Types of Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Banking and Thrift, Other Disclosures [Abstract]
Non-interest-bearing	$ 2,417,935	$ 2,133,195
Interest-bearing checking	3,623,132	3,646,866
Money market deposit	782,459	783,521
Savings	1,568,528	1,491,251
Time deposits	1,110,758	1,372,783
Total deposits	$ 9,502,812	$ 9,427,616

Deposits - Additional Informati

Deposits - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Banking and Thrift, Other Disclosures [Abstract]
Time deposits, $250,000 and over	$ 172.1	$ 409.5

Fair Value Measurements - Finan

Fair Value Measurements - Financial Assets and Financial Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	$ 268,511	$ 183,302
Equity investments	50,159	107,079
Interest rate swap liability	27,200	45,400
Other real estate owned	106	106
Items measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	268,511	183,302
Equity investments	50,159	107,079
Interest rate swap asset	27,084	45,289
Interest rate swap liability	(27,160)	(45,429)
Items measured on a recurring basis | Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Equity investments	13,693	104,539
Interest rate swap asset	0	0
Interest rate swap liability	0	0
Items measured on a recurring basis | Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	268,511	183,302
Equity investments	28,528	0
Interest rate swap asset	27,084	45,289
Interest rate swap liability	(27,160)	(45,429)
Items measured on a recurring basis | Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Equity investments	7,938	2,540
Interest rate swap asset	0	0
Interest rate swap liability	0	0
Items measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	106	106
Items measured on a non-recurring basis | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans measured for impairment based on the fair value of the underlying collateral	33,747	35,366
Items measured on a non-recurring basis | Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0	0
Items measured on a non-recurring basis | Level 1 Inputs | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans measured for impairment based on the fair value of the underlying collateral	0	0
Items measured on a non-recurring basis | Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0	0
Items measured on a non-recurring basis | Level 2 Inputs | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans measured for impairment based on the fair value of the underlying collateral	0	0
Items measured on a non-recurring basis | Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	106	106
Items measured on a non-recurring basis | Level 3 Inputs | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans measured for impairment based on the fair value of the underlying collateral	$ 33,747	$ 35,366

Fair Value Measurements - Debt

Fair Value Measurements - Debt Securities Available for Sale Reconciliation (Details) - Items measured on a recurring basis - Level 3 Inputs $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Debt Securities, Available For Sale, Fair Value [Roll Forward]
Beginning Balance	$ 2,540
Total gains (losses) included in earnings	398
Purchases	5,000
Transfers into Level 3	0
Transfers out of Level 3	0
Ending Balance	$ 7,938

Fair Value Measurements - Book

Fair Value Measurements - Book Value and Estimated Fair Value of Bank's Significant Financial Instruments Not Recorded at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financial Assets:
Debt securities held-to-maturity	$ 1,099,745	$ 968,466
Restricted equity investments	52,199	51,705
Financial Liabilities:
Time deposits	1,110,758	1,372,783
Securities sold under agreements to repurchase with retail customers	134,465	128,454
Book Value
Financial Assets:
Cash and due from banks	1,173,665	1,272,134
Debt securities held-to-maturity	1,082,326	937,253
Restricted equity investments	52,199	51,705
Loans receivable, net and loans held-for-sale	7,863,765	7,750,381
Financial Liabilities:
Deposits other than time deposits	8,392,054	8,054,833
Time deposits	1,110,758	1,372,783
Other borrowings	228,176	235,471
Securities sold under agreements to repurchase with retail customers	134,465	128,454
Level 1 Inputs
Financial Assets:
Cash and due from banks	1,173,665	1,272,134
Debt securities held-to-maturity	0	0
Restricted equity investments	0	0
Loans receivable, net and loans held-for-sale	0	0
Financial Liabilities:
Deposits other than time deposits	0	0
Time deposits	0	0
Other borrowings	0	0
Securities sold under agreements to repurchase with retail customers	134,465	128,454
Level 2 Inputs
Financial Assets:
Cash and due from banks	0	0
Debt securities held-to-maturity	1,081,590	952,365
Restricted equity investments	0	0
Loans receivable, net and loans held-for-sale	0	0
Financial Liabilities:
Deposits other than time deposits	8,392,054	8,054,833
Time deposits	1,118,867	1,383,173
Other borrowings	241,122	251,798
Securities sold under agreements to repurchase with retail customers	0	0
Level 3 Inputs
Financial Assets:
Cash and due from banks	0	0
Debt securities held-to-maturity	18,155	16,101
Restricted equity investments	52,199	51,705
Loans receivable, net and loans held-for-sale	7,822,353	7,806,743
Financial Liabilities:
Deposits other than time deposits	0	0
Time deposits	0	0
Other borrowings	0	0
Securities sold under agreements to repurchase with retail customers	$ 0	$ 0

Derivatives, Hedging Activiti_3

Derivatives, Hedging Activities, and Other Financial Instruments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Derivative [Line Items]
Collateral already posted, fair value	$ 16,100		$ 46,500
Derivative liability	27,200		45,400
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	815,300		$ 725,900
Interest Rate Swap
Derivative [Line Items]
Income (expense) in fair value adjustments	$ 64	$ 303

Derivatives, Hedging Activiti_4

Derivatives, Hedging Activities, and Other Financial Instruments - Notional and Fair Value of Derivatives Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Other assets
Derivative [Line Items]
Credit risk derivative asset, fair value	$ 27,084	$ 45,289
Other liabilities
Derivative [Line Items]
Credit risk derivative liability, fair value	$ 27,160	$ 45,429

Leases - Narrative (Details)

Leases - Narrative (Details)	3 Months Ended
	Mar. 31, 2021lease
Leases [Abstract]
Number of finance leases	1

Leases - Schedule of Right-of-U

Leases - Schedule of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease ROU asset	$ 21,616	$ 22,555
Finance lease ROU asset	1,644	1,694
Total lease ROU asset	23,260	24,249
Operating lease liability	22,090	22,990
Finance lease liability	2,052	2,100
Total lease liability	$ 24,142	$ 25,090
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Premises and equipment, net	Premises and equipment, net
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Finance Lease, Liability, Statement of Financial Position [Extensible List]	Other borrowings	Other borrowings

Leases - Schedule of Weighted A

Leases - Schedule of Weighted Average Remaining Lease Term and Discount Rate (Details)	Mar. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease, weighted average remaining lease term (years)	7 years 8 months 19 days	7 years 9 months 7 days
Finance lease, weighted average remaining lease term (years)	8 years 4 months 6 days	8 years 7 months 2 days
Operating lease, weighted average discount rate (percent)	3.00%	3.01%
Finance lease, weighted average discount rate (percent)	5.63%	5.63%

Leases - Schedule of Lease Cost

Leases - Schedule of Lease Costs and Other Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Lease Expense
Operating lease expense	$ 1,490	$ 1,723
Finance lease expense:
Amortization of ROU assets	50	40
Interest on lease liabilities	29	27
Total	1,569	1,790
Operating cash flows from operating leases	1,450	1,648
Operating cash flows from finance leases	29	27
Financing cash flows from finance leases	$ 48	$ 47

Leases - Future Minimum Payment

Leases - Future Minimum Payments for Operating and Financing Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Finance Lease
2022	$ 307
2023	307
2024	307
2025	307
2026	307
Thereafter	1,028
Total	2,563
Less: Imputed interest	(511)
Total lease liabilities	2,052	$ 2,100
Operating Leases
2022	5,836
2023	4,292
2024	3,190
2025	2,739
2026	2,154
Thereafter	7,164
Total	25,375
Less: Imputed interest	(3,285)
Total lease liabilities	$ 22,090	$ 22,990

Uncategorized Items - ocfc-2021

Label	Element	Value
Accounting Standards Update [Extensible List]	us-gaap_AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member