Northfield Bancorp, Inc. (NFBK) 10-K 1 Mar 23 2022 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Feb. 24, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-35791
Entity Registrant Name	Northfield Bancorp, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	80-0882592
Entity Address, Address Line One	581 Main Street,
Entity Address, City or Town	Woodbridge,
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07095
City Area Code	732
Local Phone Number	499-7200
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	NFBK
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 583.3
Entity Common Stock, Shares Outstanding		46,846,701
Documents Incorporated by Reference	Certain portions of the registrant’s Definitive Proxy Statement for the 2023 Annual Meeting of the Stockholders to be held May 24, 2023, will be incorporated by reference in Part III. The registrant's 2023 Definitive Proxy Statement will be filed within 120 days of December 31, 2022.
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Central Index Key	0001493225

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2022
Auditor Information [Abstract]
Auditor Name	KPMG, LLP
Auditor Location	Short Hills, New Jersey
Auditor Firm ID	185

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
ASSETS:
Cash and due from banks	$ 14,530	$ 18,191
Interest-bearing deposits in other financial institutions	31,269	72,877
Total cash and cash equivalents	45,799	91,068
Trading securities	10,751	13,461
Debt securities available-for-sale, at estimated fair value (and no allowance for credit losses at December 31, 2022 and December 31, 2021)	952,173	1,208,237
Debt securities held-to-maturity, at amortized cost (estimated fair value of $10,389 at December 31, 2022, and $5,475 at December 31, 2021)	10,760	5,283
Equity securities	10,443	5,342
Total loans held-for-investment, net	4,243,693	3,806,617
Allowance for credit losses	(42,617)	(38,973)
Net loans held-for-investment	4,201,076	3,767,644
Accrued interest receivable	17,426	14,572
Bank-owned life insurance	167,912	164,500
Federal Home Loan Bank (“FHLB”) of New York stock, at cost	30,382	22,336
Operating lease right-of-use assets	34,288	33,943
Premises and equipment, net	24,844	25,937
Goodwill	41,012	41,012
Other assets	54,427	37,207
Total assets	5,601,293	5,430,542
LIABILITIES:
Deposits	4,150,219	4,169,334
Securities sold under agreements to repurchase	25,000	50,000
FHLB advances and other borrowings	558,859	371,755
Subordinated debentures, net of issuance costs	60,996	0
Operating lease liabilities	39,790	39,851
Advance payments by borrowers for taxes and insurance	25,995	24,909
Accrued expenses and other liabilities	39,044	34,810
Total liabilities	4,899,903	4,690,659
STOCKHOLDERS’ EQUITY:
Preferred stock, $0.01 par value; 25,000,000 shares authorized, none issued or outstanding	0	0
Common stock, $0.01 par value; 150,000,000 shares authorized, 64,770,875 shares issued at December 31, 2022 and 2021, respectively, 47,442,488 and 49,266,733 shares outstanding at December 31, 2022 and 2021, respectively	648	648
Additional paid-in-capital	590,249	589,972
Unallocated common stock held by employee stock ownership plan	(15,650)	(17,058)
Retained earnings	418,353	381,361
Accumulated other comprehensive (loss) income	(48,331)	2,063
Treasury stock at cost; 17,328,387 and 15,504,142 shares at December 31, 2022 and 2021, respectively	(243,879)	(217,103)
Total stockholders’ equity	701,390	739,883
Total liabilities and stockholders’ equity	$ 5,601,293	$ 5,430,542

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Debt securities available-for-sale, allowance for credit loss	$ 0	$ 0
Debt securities, held-to-maturity	$ 10,389	$ 5,475
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	25,000,000	25,000,000
Preferred stock, shares issued (shares)	0	0
Preferred stock, shares outstanding (shares)	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	150,000,000	150,000,000
Common stock, shares issued (shares)	64,770,875	64,770,875
Common stock, shares outstanding (shares)	47,442,488	49,266,733
Treasury stock, shares (shares)	17,328,387	15,504,142

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest income:
Loans	$ 160,911	$ 158,217	$ 146,570
Mortgage-backed securities	12,461	10,640	16,572
Other securities	4,325	1,965	2,871
FHLB of New York dividends	1,174	1,279	1,825
Deposits in other financial institutions	817	197	307
Total interest income	179,688	172,298	168,145
Interest expense:
Deposits	10,289	6,207	25,230
Borrowings	9,296	10,442	13,107
Subordinated debt	1,797	0	0
Total interest expense	21,382	16,649	38,337
Net interest income	158,306	155,649	129,808
Provision/(benefit) for credit losses	4,482	(6,184)	12,742
Net interest income after provision/(benefit) for credit losses	153,824	161,833	117,066
Non-interest income:
Fees and service charges for customer services	5,705	5,394	3,967
Income on bank-owned life insurance	3,414	4,103	3,774
Gains on available-for-sale debt securities, net	279	1,495	327
(Losses)/gains on trading securities, net	(2,206)	1,703	1,601
Gains on sale of loans	453	1,401	665
Other	338	357	1,138
Total non-interest income	7,983	14,453	11,472
Non-interest expense:
Compensation and employee benefits	41,961	43,677	41,437
Occupancy	13,241	13,956	15,152
Furniture and equipment	1,730	1,737	1,519
Data processing	7,415	6,784	8,123
Professional fees	3,846	3,596	4,141
Advertising	2,159	2,358	2,088
Federal Deposit Insurance Corporation (FDIC) insurance	1,407	1,365	885
Credit loss (benefit)/expense for off-balance sheet exposures	(1,061)	307	0
Other	6,250	5,379	5,168
Total non-interest expense	76,948	79,159	78,513
Income before income tax expense	84,859	97,127	50,025
Income tax expense	23,740	26,473	13,037
Net income	$ 61,119	$ 70,654	$ 36,988
Net income per common share:
Basic (usd per share)	$ 1.32	$ 1.46	$ 0.76
Diluted (usd per share)	$ 1.32	$ 1.45	$ 0.76
Basic weighted average shares outstanding (in shares)	46,234,122	48,416,495	48,721,504
Diluted weighted average shares outstanding (in shares)	46,438,119	48,754,263	48,785,963
Net income	$ 61,119	$ 70,654	$ 36,988
Unrealized (losses) gains on debt securities available-for-sale:
Net unrealized holding (losses) gains	(69,876)	(13,916)	12,077
Less: reclassification adjustment for net gains included in net income	(279)	(1,495)	(327)
Net unrealized (losses) gains	(70,155)	(15,411)	11,750
Post-retirement benefits adjustment	172	0	0
Other comprehensive (loss) income, before tax	(69,983)	(15,411)	11,750
Income tax benefit (expense) related to net unrealized holding (losses) gains on debt securities available-for-sale	19,558	3,895	(3,380)
Income tax expense related to reclassification adjustment for gains included in net income	79	419	91
Income tax expense related to post-retirement benefits adjustment	(48)	0	0
Other comprehensive (loss) income, net of tax	(50,394)	(11,097)	8,461
Comprehensive income	$ 10,725	$ 59,557	$ 45,449

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Unallocated Common Stock Held by the Employee Stock Ownership Plan	Unallocated Common Stock Held by the Employee Stock Ownership Plan Cumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (loss) Net of tax	Accumulated Other Comprehensive Income (loss) Net of tax Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock	Treasury Stock Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning Balance (in shares) at Dec. 31, 2019				49,175,347
Beginning Balance at Dec. 31, 2019	$ 695,853			$ 609		$ 548,486		$ (19,740)		$ 322,581			$ 4,699		$ (160,782)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13
Net income	$ 36,988									36,988
Other comprehensive income (loss), net of tax	8,461												8,461
ESOP shares allocated or committed to be released	1,780					569		1,211
Stock compensation expense	1,432					1,432
Net issuance of restricted stock (in shares)				83,744
Net issuance of restricted stock	0					(1,145)									1,145
Net forfeitures of restricted stock (in shares)				(3,573)
Net forfeitures of restricted stock	0					34									(34)
Exercise of stock options (in shares)				13,000
Exercise of stock options, net	175					(4)									179
Cash dividends declared	(21,476)									(21,476)
Issuance of stock for VSB Bancorp, Inc. acquisition (in shares)				3,837,168
Issuance of stock for VSB Bancorp, Inc. acquisition	41,173			$ 39		41,134
Treasury stock (in shares)				(895,789)
Treasury stock	(10,405)														(10,405)
Ending Balance (in shares) at Dec. 31, 2020				52,209,897	52,209,897
Ending Balance at Dec. 31, 2020	753,981	$ (3,087)	$ 750,894	$ 648	$ 648	590,506	$ 590,506	(18,529)	$ (18,529)	338,093	$ (3,087)	$ 335,006	13,160	$ 13,160	(169,897)	$ (169,897)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	70,654									70,654
Other comprehensive income (loss), net of tax	(11,097)												(11,097)
ESOP shares allocated or committed to be released	2,649					1,178		1,471
Stock compensation expense	994					994
Net issuance of restricted stock (in shares)				147,315
Net issuance of restricted stock	0					(1,821)									1,821
Net forfeitures of restricted stock (in shares)				(13,280)
Net forfeitures of restricted stock	$ 0					178									(178)
Exercise of stock options (in shares)	394,045			265,501
Exercise of stock options, net	$ 3,409					(1,063)									4,472
Cash dividends declared	(24,299)									(24,299)
Treasury stock (in shares)				(3,342,700)
Treasury stock	$ (53,321)														(53,321)
Ending Balance (in shares) at Dec. 31, 2021	49,266,733			49,266,733
Ending Balance at Dec. 31, 2021	$ 739,883			$ 648		589,972		(17,058)		381,361			2,063		(217,103)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	61,119									61,119
Other comprehensive income (loss), net of tax	(50,394)												(50,394)
ESOP shares allocated or committed to be released	2,375					967		1,408
Stock compensation expense	1,753					1,753
Net issuance of restricted stock (in shares)				157,416
Net issuance of restricted stock	0					(2,484)									2,484
Net forfeitures of restricted stock (in shares)				(20,415)
Net forfeitures of restricted stock	$ 0					293									(293)
Exercise of stock options (in shares)	187,153			130,911
Exercise of stock options, net	$ 1,662					(252)									1,914
Cash dividends declared	(24,127)									(24,127)
Treasury stock (in shares)				(2,092,157)
Treasury stock	$ (30,881)														(30,881)
Ending Balance (in shares) at Dec. 31, 2022	47,442,488			47,442,488
Ending Balance at Dec. 31, 2022	$ 701,390			$ 648		$ 590,249		$ (15,650)		$ 418,353			$ (48,331)		$ (243,879)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Dividends declared (usd per share)	$ 0.52	$ 0.50	$ 0.44
Average cost of treasury stock (usd per share)	$ 14.72	$ 15.91	$ 11.59

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 61,119	$ 70,654	$ 36,988
Adjustments to reconcile net income to net cash provided by operating activities:
Provision/(benefit) for credit losses	4,482	(6,184)	12,742
ESOP and stock compensation expense	4,128	3,643	3,212
Depreciation	3,645	3,889	3,878
Amortization of premiums and deferred loan costs, net of accretion of discounts and deferred loan fees	9,306	2,587	4,073
Amortization of debt issuance costs	112	0	0
Amortization of intangible assets	174	200	229
Amortization of operating lease right-of-use assets	4,626	4,395	4,586
Income on bank-owned life insurance	(3,414)	(4,103)	(3,774)
Net gain on sale of loans held-for-sale	(453)	(1,401)	(665)
Proceeds from loans held-for-sale	3,544	0	0
Origination of loans held-for-sale	(3,364)	0	0
Gains on available-for-sale debt securities, net	(279)	(1,495)	(327)
Losses (gains) on trading securities, net	2,206	(1,703)	(1,601)
Gain on sale of other real estate owned, net	(17)	0	0
Net sales of trading securities	504	533	532
(Increase) decrease in accrued interest receivable	(2,924)	118	1,334
(Increase) decrease in other assets	(3,673)	(14,531)	1,294
Deferred tax (benefit)/provision	(625)	3,159	(3,058)
Increase (decrease) in accrued expenses and other liabilities	4,234	4,998	(4,229)
Net cash used in operating activities	83,331	64,759	55,214
Cash flows from investing activities:
Net increase in loans receivable	(430,849)	(105,455)	(276,616)
Purchase of loans	(10,183)	0	0
Proceeds from sale of loans	2,796	151,559	48,165
Purchase of FHLB of New York stock	(44,564)	(220)	(10,497)
Redemption of FHLB of New York stock	36,518	6,525	21,735
Purchases of debt securities available-for-sale	(168,973)	(746,967)	(572,342)
Purchases of equity securities	(5,046)	(5,089)	(27)
Principal payments and maturities on debt securities available-for-sale	305,027	454,414	556,920
Principal payments and maturities on debt securities held-to-maturity	720	1,879	1,462
Purchases of securities held-to-maturity	(6,237)	0	0
Proceeds from sale of debt securities available-for-sale	41,479	328,966	23,628
Proceeds from sale of equity securities	0	0	3,115
Proceeds from bank-owned life insurance	1,526	1,021	2,716
Proceeds from sale of other real estate owned	125	0	0
Purchases and improvements of premises and equipment	(2,552)	(1,638)	(3,059)
Net cash acquired in business combinations	0	0	72,875
Net cash (used in) provided by investing activities	(280,213)	84,995	(131,925)
Cash flows from financing activities:
Net (decrease) increase in deposits	(19,115)	92,783	313,726
Dividends paid	(24,127)	(24,299)	(21,476)
Exercise of stock options	1,662	3,409	175
Purchase of treasury stock	(30,881)	(53,321)	(10,405)
Increase (decrease) in advance payments by borrowers for taxes and insurance	1,086	5,232	(368)
Proceeds from issuance of subordinated debt, net of issuance costs	60,884	0	0
Proceeds from securities sold under agreements to repurchase and other borrowings	282,104	0	370,785
Repayments related to securities sold under agreements to repurchase and other borrowings	(120,000)	(170,034)	(636,000)
Net cash provided by (used in) financing activities	151,613	(146,230)	16,437
Net (decrease) increase in cash and cash equivalents	(45,269)	3,524	(60,274)
Cash and cash equivalents at beginning of year	91,068	87,544	147,818
Cash and cash equivalents at end of year	45,799	91,068	87,544
Cash paid during the year for:
Interest	19,282	17,451	39,584
Income taxes	22,094	28,476	15,169
Non-cash transactions:
Loans charged-off, net	838	2,803	3,842
Transfers of loans held-for-investment to loans held-for-sale, at fair value	2,523	131,883	67,395
Transfers of loans held-for-sale at fair value to loans held-for-investment	0	1,612	0
Transfers of loans held-for-investment to other real estate owned	0	100	0
Right-of-use assets obtained in exchange for new lease liabilities	4,983	1,596	3,568
Securities available-for-sale	0	0	126,931
Loans	0	0	180,431
Accrued interest receivable	0	0	1,415
Bank-owned life insurance	0	0	5,714
Premises and equipment	0	0	7,789
Goodwill and other intangible assets	0	0	2,909
Other assets	0	0	4,702
Total non-cash assets acquired	0	0	329,891
Deposits	0	0	354,592
Other liabilities	0	0	7,001
Total non-cash liabilities assumed	0	0	361,593
Net non-cash liabilities assumed	0	0	(31,702)
Net cash and cash equivalents acquired	0		72,875
Common stock issued in acquisition	$ 0	$ 0	$ 41,173

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies The following significant accounting and reporting policies of Northfield Bancorp, Inc. and subsidiaries (collectively, the “Company”), conform to U.S. generally accepted accounting principles (“U.S. GAAP”), and are used in preparing and presenting these consolidated financial statements. (a) Basis of Presentation The consolidated financial statements are comprised of the accounts of Northfield Bancorp, Inc. and its wholly owned subsidiaries, Northfield Investment, Inc. and Northfield Bank (the “Bank”), and the Bank’s wholly-owned significant subsidiaries, NSB Services Corp. and NSB Realty Trust. All significant intercompany accounts and transactions have been eliminated in consolidation. 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 balance sheets and revenues and expenses during the reporting periods. Actual results may differ significantly from those estimates and assumptions. A material estimate that is particularly susceptible to significant change in the near term is the allowance for credit losses. In connection with the determination of this allowance, management generally obtains independent appraisals for significant properties. In addition, judgments related to the amount and timing of expected cash flows from purchased credit-deteriorated (“PCD”, or, previously, purchased credit-impaired “PCI”) loans, goodwill, securities valuation and impairment, and deferred income taxes, involve a higher degree of complexity and subjectivity and require estimates and assumptions about uncertain matters. Actual results may differ from the estimates and assumptions. Certain prior year amounts have been reclassified to conform to the current year presentation. (b) Recent Accounting Pronouncements ASU No. 2016-03 In June 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): “Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). This guidance was subsequently amended by ASU No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments”; ASU No. 2019-05, “Financial Instruments-Credit Losses (Topic 326): Targeted Transition Relief”; and ASU No. 2019-11, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses”. ASU No. 2016-13 and its subsequent updates are collectively known as “CECL”. CECL replaces the current incurred loss impairment model that recognizes losses when a probable threshold is met with a requirement to recognize lifetime expected credit losses immediately when a financial asset is originated or purchased. For available-for-sale debt securities where fair value is less than cost, credit-related impairment would be recognized in an allowance for credit losses and adjusted in each subsequent period for changes in credit risk. CECL also expands the disclosure requirements regarding an entity’s assumptions, models, and methods for estimating the allowance for credit losses. The Company adopted ASU 2016-13 and its related amendments on January 1, 2021, using a modified retrospective approach. At adoption, the Company recorded an $11.1 million increase to its allowance for credit losses, including reserves of $10.4 million related to loans and $737,000 related to unfunded credit commitments. Of the $10.4 million increase in loan reserves, $6.8 million represents PCD loan-related reserves which were recognized through a gross-up that increases the amortized cost basis of loans with a corresponding increase to the allowance for credit losses, and therefore results in no impact to shareholders' equity. The non-PCD loan related increase to the allowance for credit losses of $4.3 million, including the reserves for unfunded loan commitments, was offset in shareholders' equity and deferred tax assets. For further details on the adoption of CECL see Note 6 - Loans Note 7 - Allowance for Credit Losses on Loans ASU No. 2019-12. In December 2019, the FASB issued ASU No. 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes.” ASU No. 2019-12 simplifies accounting for income taxes by removing specific technical exceptions in ASC 740 related to the incremental approach for intra-period tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for outside basis differences. ASU No. 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The amendments in this update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. The Company adopted ASU 2019-12 on January 1, 2021, which did not have a material impact on the Company's Consolidated Financial Statements. ASU No. 2020-04 . In March, 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform ("ASC 848"): Facilitation of the Effects of Reference Rate Reform on Financial Reporting”, which provides temporary optional guidance to ease the potential burden in accounting for reference rate reform. The ASU provides optional expedients and exceptions for applying generally accepted accounting principles to contract modifications and hedging relationships, subject to meeting certain criteria, that reference the London Inter-Bank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued. It is intended to help stakeholders during the global market-wide reference rate transition period. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022. However, in December 2022, the FASB issued ASU 2022-06, deferring the sunset date to December 31, 2024. The Company has evaluated the regulatory requirements to cease the use of LIBOR and has put in place systems and capabilities for this purpose. The adoption of this ASU is not expected to have a material impact on the Company's Consolidated Financial Statements. ASU No. 2022-02 . In March 2022, the FASB issued ASU No. 2022-02, “Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures”. The amendments in this ASU were issued to (1) eliminate accounting guidance for TDRs by creditors, while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty; (2) require disclosures of current period gross write-offs by year of origination for financing receivables and net investments in leases. For entities that have adopted the amendments in ASU 2016-13, Measurement of Credit Losses on Financial Instruments, this update will be effective for financial statements issued for fiscal years and interim periods beginning after December 15, 2022. Early adoption is permitted. The amendments in this ASU are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. The adoption of this ASU is not expected to have a material impact on the Company's Consolidated Financial Statements. (c) Business The Company, through its principal subsidiary, the Bank, provides a full range of banking services primarily to individuals and corporate customers in Richmond and Kings counties in New York, and Hunterdon, Mercer, Union and Middlesex counties in New Jersey. The Company is subject to competition from other financial institutions and to the regulations of certain federal and state agencies, and undergoes periodic examinations by those regulatory authorities. (d) Cash Equivalents Cash equivalents consist of cash on hand, due from banks, and interest-bearing deposits in other financial institutions with an original term of three months or less. (e) Securities Securities are classified at the time of purchase, based on management’s intention, as debt securities held-to-maturity, debt securities available-for-sale, trading account securities or equity securities. Debt securities held-to-maturity are those that management has the positive intent and ability to hold until maturity. Debt securities held-to-maturity are carried at amortized cost, adjusted for amortization of premiums and accretion of discounts using the level-yield method over the contractual term of the securities, adjusted for actual prepayments. Debt securities available-for-sale represents all securities not classified as either held-to-maturity, trading, or equity. Debt securities available-for-sale are carried at estimated fair value with unrealized holding gains and losses (net of related tax effects) on such securities excluded from earnings, but included as a separate component of stockholders’ equity, titled “Accumulated other comprehensive income (loss).” The cost of securities sold is determined using the specific-identification method. Security transactions are recorded on a trade-date basis. For securities available for sale, ASU 2016-13 eliminates the concept of other than temporary impairment and instead requires entities to determine if impairment is related to credit loss or non-credit loss. In making the assessment of whether a loss is from credit or other factors, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency and adverse conditions related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows is less than the amortized cost basis, a credit loss exists and an allowance is created, limited by the amount that the fair value is less than the amortized cost basis. Subsequent activity related to the credit loss component in the form of write-offs or recoveries is recognized as part of the allowance for credit losses on securities available for sale. Management measures expected credit losses on held-to-maturity debt securities on a collective basis by major security type. All of the held-to-maturity securities in the Company's portfolio are issued by U.S. government agencies and are either explicitly or implicitly guaranteed by the U.S government and therefore the expectation of nonpayment is zero. Therefore the Company is not required to estimate an allowance for credit losses related to these securities. Prior to the adoption of ASU 2016-13, our evaluation of other-than-temporary impairment considered our assessments of the reason for the decline in value, the duration and severity of the impairment, our intent and ability to hold the securities (as well as the likelihood of a near-term recovery), and our intent to sell the securities and whether it was more likely than not that we would be required to sell the securities before the recovery of their amortized cost basis. If a determination was made that a debt security was other-than-temporarily impaired, the Company would estimate the amount of the unrealized loss that was attributable to credit and all other non-credit related factors. If we intended to hold securities in an unrealized loss position until the loss was recovered, which may be at maturity, the credit related component was recognized as an other-than-temporary impairment charge in non-interest income. The non-credit related component was recorded as an adjustment to accumulated other comprehensive income (loss), net of tax. The estimated fair value of debt securities, including mortgage-backed securities and corporate debt obligations is furnished by an independent third-party pricing service. The third-party pricing service primarily utilizes pricing models and methodologies that incorporate observable market inputs, including among other things, benchmark yields, reported trades, and projected prepayment and default rates. Management reviews the data and assumptions used in pricing the securities by its third-party provider for reasonableness. The Company has made the accounting policy election to exclude accrued interest receivable on securities from the estimate of credit losses. Accrued interest receivable totaled $2.8 million and $2.5 million, respectively, at December 31, 2022 and 2021 and is reported in accrued interest receivable on the consolidated balance sheets. Trading securities are securities that are bought and may be held for the purpose of selling them in the near term. Trading securities are reported at estimated fair value, using quoted prices in active markets, with unrealized holding gains and losses reported as a component of gain (loss) on securities, net in non-interest income. Equity securities with readily determinable fair values are stated at fair value with unrealized gains and losses reported as a component of gain (loss) on securities, net in non-interest income. Equity securities without readily determinable fair values are recorded at net asset value less any impairment, if any. (f) Loans and Allowance for Credit Losses The accounting and reporting for PCD loans and loans classified as held-for-sale differs substantially from those loans classified by the Company as held-for-investment. For purposes of reporting, discussion and analysis, management has classified its loan portfolio into three categories: (1) loans originated by the Company and held-for-sale, which are carried at the lower of aggregate cost or estimated fair value, less costs to sell, and therefore have no associated allowance for loan losses, (2) PCD loans, which are held-for-investment, and initially valued at estimated fair value on the date of acquisition, with no initial related allowance for credit losses, and (3) Loans held-for-investment, which include originated loans carried at amortized cost, and acquired loans, with no evidence of credit deterioration, initially valued at fair value on the date of acquisition, less net charge-offs and the allowance for credit losses. Net loans held-for-investment are stated at unpaid principal balance, adjusted by unamortized premiums and unearned discounts, deferred origination fees and certain direct origination costs, and the allowance for credit losses. Interest income on loans is accrued and credited to income as earned. Net loan origination fees/costs are deferred and accreted/amortized to interest income over the loan’s contractual life using the level-yield method, adjusted for actual prepayments. Generally, loans held-for-sale are designated at time of origination and generally consist of newly originated fixed rate residential loans and are recorded at the lower of aggregate cost or estimated fair value in the aggregate. During 2021 and 2020, the Company transferred from held-for-investment to held-for-sale certain performing and nonperforming loans. Transfers of loans from held-for-investment to held-for-sale are infrequent and occur at fair value less costs to sell, with any charge-off to allowance for credit losses. Gains are recognized on a settlement-date basis and are determined by the difference between the net sales proceeds and the carrying value of the loans, including any net deferred fees or costs. Net loans held-for-investment are deemed impaired when it is probable, based on current information, that the Company will not collect all amounts due in accordance with the contractual terms of the loan agreement. The Company has defined the population of impaired loans to be all non-accrual loans held-for-investment with an outstanding balance of $500,000 or greater and all loans restructured in troubled debt restructurings (“TDRs”). Loan held-for-investment are individually assessed to determine that the loan’s carrying value is not in excess of the expected future cash flows, discounted at the loan's original effective interest rate, or the fair value of the underlying collateral (less estimated costs to sell) if the loan is collateral dependent. Impairments, if any, are recognized through a charge to the allowance for credit losses on loans for the amount that the loan’s carrying value exceeds the discounted cash flow analysis or estimated fair value of collateral (less estimated costs to sell) if the loan is collateral dependent. Such amounts are charged-off when considered appropriate. Allowance for Credit Losses on Loans Under ASU 2016-13 the Company determines the allowance for credit losses on loans based upon a consideration of its historical portfolio loss experience, current borrower-specific risk characteristics, current conditions, forecasts of future economic conditions, reversion period, prepayments, and qualitative adjustments. The allowance is measured on a collective (loan segment) basis when similar risk characteristics exist. Loans that do not share common risk characteristics are evaluated on an individual basis and are excluded from the collective evaluation. Accrued interest on loans is excluded from the calculation of the allowance for credit losses due to the Company's non-accrual policy which results in the reversal of uncollectible accrued interest on non-accrual loans against interest income in a timely manner. Accrued interest receivable on loans held-for-investment totaled $11.7 million and $9.4 million, respectively, at December 31, 2022 and 2021 and is reported in accrued interest receivable on the consolidated balance sheets Allowance for Collectively Evaluated Loans Held-for-Investment . In estimating the quantitative component of the allowance on a collective basis, the Company uses a risk rating migration model which calculates an expected life of loan loss percentage for each loan by generating probability of default and loss given default metrics. These metrics are multiplied by the exposure at default, taking into consideration prepayments, to calculate the quantitative component of the allowance. The metrics are based on the migration of loans from performing to loss by credit risk rating or delinquency categories using historical life-of-loan analysis periods for each loan portfolio pool, and the severity of loss, based on the aggregate net lifetime losses incurred using the Company's own historical loss experience and comparable peer data loss history. The model's expected losses based on loss history are adjusted for qualitative adjustments to address risks that may not be adequately represented in the risk rating migration model. Among other things, these adjustments include and account for differences in: (i) changes in lending policies and procedures; (ii) changes in local, regional, national, and international economic and business conditions and developments that affect the collectability of our portfolio, including the condition of various market segments; (iii) changes in the experience, ability and depth of lending management and other relevant staff; (iv) changes in the quality of our loan review system; (v) the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and (vi) the effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in our existing portfolio. The Company utilizes a two-year reasonable and supportable forecast period after which estimated losses revert to historical loss experience immediately for the remaining life of the loan. In establishing its estimate of expected credit losses, the Company utilizes five externally-sourced forward-looking economic scenarios developed by Moody's Analytics (“Moody's”). Management utilizes five different Moody's scenarios so as to incorporate uncertainties related to the economic environment. These scenarios, which range from more benign to more severe economic outlooks, include a ‘most likely outcome’ (the “Baseline” scenario) and four less likely scenarios referred to as the “Upside” and “Downside” scenarios. Each scenario is assigned a weighting with a majority of the weighting placed on the Baseline scenario and lower weights placed on both the Upside and Downside scenarios. The weighting assigned by management is based on the economic outlook and available information at the reporting date. The model projects economic variables under each scenario based on detailed statistical analyses. The Company has identified and selected key variables that most closely correlated to its historical credit performance, which include: Gross domestic product, unemployment, and three collateral indices: the Commercial Property Price Index, the Commercial Property Price Apartment Index and the Case-Shiller Home Price Index. Allowance for Individually Evaluated Loans. The Company measures specific reserves for individual loans that do not share common risk characteristics with other loans, consisting of all TDRs and non-accrual loans with an outstanding balance of $500,000 or greater. Loans individually evaluated for impairment are assessed to determine that the loan’s carrying value is not in excess of the estimated fair value of the collateral less cost to sell, if the loan is collateral-dependent, or the present value of the expected future cash flows, if the loan is not collateral-dependent. Management performs an evaluation of each impaired loan and generally obtains updated appraisals as part of the evaluation. In addition, management adjusts estimated fair values down to appropriately consider recent market conditions, our willingness to accept a lower sales price to effect a quick sale, and costs to dispose of any supporting collateral. Determining the estimated fair value of underlying collateral (and related costs to sell) can be difficult in illiquid real estate markets and is subject to significant assumptions and estimates. Management employs an independent third-party management firm that specializes in appraisal preparation and review to ascertain the reasonableness of updated appraisals. Projecting the expected cash flows under troubled debt restructurings which are not collateral-dependent is inherently subjective and requires, among other things, an evaluation of the borrower’s current and projected financial condition. Individually impaired loans that have no impairment losses are not considered for collective allowances described above. The Company elected to exclude accrued interest on loans from the amortized cost of loans held for investment. The accrued interest is reported in accrued interest receivable on the consolidated balance shee t and totaled $11.7 million and $9.4 million, respectively, at December 31, 2022 and 2021. PCD Loans The Company adopted CECL using the prospective transition approach for PCD loans that were previously classified as PCI loans and accounted for under Accounting Standards Codification (“ASC”) Subtopic 310-30, “Loans and Debt Securities Acquired with Deteriorated Credit Quality.” In accordance with the standard, management did not reassess whether PCI loans met the criteria of PCD loans as of the date of adoption. On January 1, 2021, the amortized cost basis of the PCD assets was adjusted to reflect the addition of the $6.8 million of the allowance for credit losses. The remaining noncredit discount (based on the adjusted amortized cost basis) will be accreted into interest income at the effective interest rate as of January 1, 2021. Upon adoption of CECL, the Company elected to maintain pools of loans that were previously accounted for under ASC Subtopic 310-30 and will continue to account for these pools as a unit of account. Loans are only removed from existing pools if they are written off, paid off, or sold. Upon adoption of CECL, the allowance for credit losses was determined for each pool and added to the pool's carrying amount to establish a new amortized cost basis. The difference between the unpaid principal balance of the pool and the new amortized cost basis is the noncredit premium or discount which will be amortized into interest income over the remaining life of the pool. Changes to the allowance for credit losses after adoption are recorded through provision expense. The Company also maintains a reserve for estimated losses on off-balance sheet credit risks related to loan commitments and stand-by letters of credit. The reserve for off-balance sheet exposures is determined using the CECL reserve factor in the related funded loan segment, adjusted for an average historical funding rate. The allowance for credit losses for off-balance sheet credit exposures is recorded in other liabilities on the consolidated balance sheets and the corresponding provision is included in other non-interest expense. While management uses available information to estimate credit losses on loans, future additions may be necessary based on changes in conditions, including changes in economic conditions and forecasts, particularly in Richmond and Kings counties in New York, and Hunterdon, Mercer, Union and Middlesex counties in New Jersey and to a lesser extent eastern Pennsylvania. Accordingly, as with most financial institutions in the market area, the ultimate collectability of a substantial portion of the Company’s loan portfolio is susceptible to changes in conditions in the Company’s marketplace. In addition, future changes in laws and regulations could make it more difficult for the Company to collect all contractual amounts due on its loans and mortgage-backed securities. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses. Such agencies may require the Company to recognize additions to the allowance based on their judgments about information available to them at the time of their examination. TDRs are loans where terms have been modified because of deterioration in the financial condition of the borrower. Modifications could include extension of the repayment terms of the loan, reduced interest rates, or forgiveness of accrued interest and/or principal. Once an obligation has been restructured because of such credit problems, it continues to be considered restructured until paid in full or, if the obligation yields a market rate (a rate equal to the rate the Company was willing to accept at the time of the restructuring for a new loan with comparable risk), until the year subsequent to the year in which the restructuring takes place, provided the borrower has performed under the modified terms for a consecutive six-month period. The Company records an impairment charge equal to the difference between the present value of estimated future cash flows under the restructured terms discounted at the original loan’s effective interest rate, or the underlying collateral value, less estimated costs to sell, if the loan is collateral dependent. Changes in present values attributable to the passage of time are recorded as a component of the provision for loan losses. The Company introduced a short-term modification program in March 2020 that provided temporary payment relief to those borrowers directly impacted by COVID-19. The program allowed for a deferral of payments typically for 90 days, which could be extended for an additional 90 days, for a maximum of 180 days on a cumulative basis, with modifications in the form of payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment. In accordance with regulatory guidance under the Coronavirus Aid, Relief and Economic Security Act of 2020 (the “CARES Act”), the Consolidated Appropriations Act, and other regulatory guidance, these loan deferrals were not considered TDRs and not reported as past due or non-accrual during the deferral period. At December 31, 2022 and 2021, there were no material deferrals related to the CARES Act. A loan is considered past due when it is not paid in accordance with its contractual terms. The accrual of income on loans, including impaired loans held-for-investment, and other loans in the process of foreclosure, is generally discontinued when a loan becomes 90 days or more delinquent, or sooner when certain factors indicate that the ultimate collection of principal and interest is in doubt. Loans on which the accrual of income has been discontinued are designated as non-accrual loans. All previously accrued interest is reversed against interest income, and income is recognized subsequently only in the period that cash is received, provided no principal payments are due and the remaining principal balance outstanding is deemed collectible. A non-accrual loan is not returned to accrual status until both principal and interest payments are brought current and factors indicating doubtful collection no longer exist, including performance by the borrower under the loan terms for a consecutive six-month period. (g) Federal Home Loan Bank (“FHLB”) Stock The Bank, as a member of the FHLB of New York (“FHLBNY”), is required to hold shares of capital stock in the FHLB as a condition to both becoming a member and engaging in certain transactions with the FHLB. The minimum investment requirement is determined by a “membership” investment component and an “activity-based” investment component. The membership investment component is the greater of 0.125% of the Bank’s mortgage-related assets, as defined by the FHLB, or $1,000. The activity-based investment component is equal to 4.5% of the Bank’s outstanding advances with the FHLB. The activity-based investment component also considers other transactions, including assets originated for or sold to the FHLB, and delivery commitments issued by the FHLB. The Company currently does not enter into these other types of transactions with the FHLB. On at least a quarterly basis, we perform our other-than-temporary impairment analysis of FHLB stock, we evaluate, among other things, (i) its earnings performance, including the significance of any decline in net assets of the FHLB as compared to the regulatory capital amount of the FHLB, (ii) the commitment by the FHLB to continue dividend payments, and (iii) the liquidity position of the FHLB. We did not consider our investment in FHLB stock to be other-than-temporarily impaired at December 31, 2022 and 2021. (h) Operating Leases During the normal course of business, the Company enters into agreements, and at inception it determines if a particular agreement is a lease. The Company's operating lease agreements relate primarily to its corporate offices and bank branch offices. The agreements are recorded as operating lease right-of-use assets and operating lease liabilities on the consolidated balance sheets. Operating lease right of use assets and operating lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term, and represent the right to use an underlying asset for the lease term and the obligation to make lease payments arising from the lease. As the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate in determining the present value of lease payments. The Company's lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the term of the lease. (i) Premises and Equipment, Net Premises and equipment, including leasehold improvements, are carried at cost, less accumulated depreciation and amortization. Depreciation and amortization of premises and equipment, including capital leases, are computed on a straight-line basis over the estimated useful lives of the related assets. The estimated useful lives of significant classes of assets are generally as follows: buildings - forty years; furniture and equipment - five (j) Bank-Owned Life Insurance The Company has purchased bank-owned life insurance contracts to help fund its obligations for certain employee benefit costs. The Company’s investment in such insurance contracts has been reported in the consolidated balance sheets at their cash surrender values. Changes in cash surrender values and death benefit proceeds received in excess of the related cash surrender values are recorded as non-interest income. (k) Goodwill Intangible assets resulting from acquisitions under the purchase method of accounting co

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations On July 1, 2020, the Company completed its acquisition of VSB Bancorp, Inc. (“Victory”), parent company of Victory State Bank, in a stock transaction, which after purchase accounting adjustments added $402.8 million to total assets, including $180.4 million to loans, and $354.6 million to deposits, and six branch offices in Staten Island, New York. Under the terms of the merger agreement, each share of Victory common stock was exchanged for 2.0463 shares of Northfield common stock with fractional shares paid out in cash. The transaction 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, as of July 1, 2020, and results of operations have been included in the Company's consolidated statements of income from that date forward. The excess of consideration paid over the fair value of the net assets acquired has been recorded as goodwill. Direct costs related to the acquisition were expensed as incurred. During the year ended December 31, 2020, the Company incurred $4.3 million, respectively, of merger-related expenses, pre-tax, which are included in non-interest expense in the Company's consolidated statement of income. The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition for Victory (in thousands): At July 1, 2020 Fair Value Total Purchase Price $ 41,173 Assets acquired: Cash and cash equivalents $ 72,875 Debt securities available-for-sale 126,931 Loans 180,431 Accrued interest receivable 1,415 Bank-owned life insurance 5,714 Premises and equipment 7,789 Other assets 5,010 Total assets acquired 400,165 Liabilities assumed: Deposits 354,592 Other liabilities 7,001 Total liabilities assumed 361,593 Net assets acquired $ 38,572 Goodwill recorded in the merger $ 2,601 The calculation of goodwill is subject to change for up to one year after the date of acquisition as additional information that existed as of the acquisition date estimates and uncertainties become available. As of June 30, 2021, the Company finalized its review of the acquired assets and liabilities and recorded an adjustment to the carrying value of goodwill and a corresponding adjustment to deferred tax assets of $304,000. Fair Value Measurement of Assets Assumed and Liabilities Assumed Described below are the methods used to determine the fair value of the significant assets acquired and liabilities assumed in the Victory acquisition. Cash and cash equivalents. The estimated fair values of cash and cash equivalents approximate their stated face amounts, as these financial instruments are either due on demand or have short-term maturities. Debt securities Available-for-Sale. The estimated fair values of the securities were calculated utilizing Level 2 inputs. Prices for the securities were obtained from an independent nationally recognized third-party pricing service. Loans. The acquired loan portfolio was valued based on current guidance which defines fair value as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. Level 3 inputs were utilized to value the portfolio and included the use of present value techniques employing cash flow estimates and the 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, management 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 credit losses; and 2) estimated fair value adjustment for qualitative adjustments. The expected credit losses were calculated using an average of historical losses of the acquired bank and industry bench mark loss rates observed for loans with similar underlying characteristics. The adjustment related to qualitative adjustments was impacted by general economic conditions and the risk related to lack of familiarity with the originator's underwriting process. To calculate the specific credit fair value adjustment, management reviewed the acquired loan portfolio for loans meeting the definition of an impaired loan with deteriorated credit quality. Loans meeting this definition 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. The accretable yield amount will be recognized over the life of the loans on a level yield basis as an adjustment to yield. The following is a summary of the credit impaired loans acquired in the Victory acquisition as of the closing date (in thousands): July 1, 2020 Contractually required principal and interest $ 7,809 Contractual cash flows not expected to be collected (non-accretable discount) 3,315 Expected cash flows to be collected at acquisition 4,494 Interest component of expected cash flows (accretable yield) (599) Fair value of acquired loans $ 3,895 Leases. Five lease obligations were added as part of the acquisition, and the Company recorded a $2.5 million operating lease right-of-use asset and operating lease liability for these lease obligations.

Debt Securities Available-for-S

Debt Securities Available-for-Sale	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities Available-for-Sale	Debt Securities Available-for-Sale The following is a comparative summary of mortgage-backed securities and other debt securities available-for-sale at December 31, 2022 and 2021 (in thousands): December 31, 2022 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 76,150 $ — $ (4,074) $ 72,076 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 472,963 1 (40,346) 432,618 Real estate mortgage investment conduits ("REMICs"): GSE 280,870 — (16,146) 264,724 753,833 1 (56,492) 697,342 Other debt securities: Municipal bonds 21 — — 21 Corporate bonds 189,603 2 (6,871) 182,734 189,624 2 (6,871) 182,755 Total debt securities available-for-sale $ 1,019,607 $ 3 $ (67,437) $ 952,173 December 31, 2021 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 2,344 $ — $ (54) $ 2,290 Mortgage-backed securities: Pass-through certificates: GSE 579,035 5,233 (2,862) 581,406 REMICs: GSE 390,755 2,398 (1,443) 391,710 969,790 7,631 (4,305) 973,116 Other debt securities: Municipal bonds 71 1 — 72 Corporate bonds 233,311 192 (744) 232,759 233,382 193 (744) 232,831 Total debt securities available-for-sale $ 1,205,516 $ 7,824 $ (5,103) $ 1,208,237 The following is a summary of the expected maturity distribution of debt securities available-for-sale other than mortgage-backed securities at December 31, 2022 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 154,157 $ 149,006 Due after one year through five years 110,467 104,807 Due after five years through ten years 1,150 1,018 $ 265,774 $ 254,831 Contractual maturities for mortgage-backed securities are not included above, as expected maturities on mortgage-backed securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without penalties. Certain securities available-for-sale are pledged or encumbered to secure borrowings under Pledge Agreements and Repurchase Agreements and for other purposes required by law. At December 31, 2022, and December 31, 2021, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $591.7 million and $522.1 million, respectively. See Note 10 - “Borrowings” for further discussion regarding securities pledged or encumbered for borrowings. For the year ended December 31, 2022, the Company had gross proceeds of $41.5 million on sales of securities available-for-sale with gross realized gains of $279,000 and no gross realized losses. For the year ended December 31, 2021, the Company had gross proceeds of $329.0 million on sales of securities available-for-sale with gross realized gains of $1.5 million and no gross realized losses. For the year ended December 31, 2020, the Company had gross proceeds of $23.6 million on sales of securities available-for-sale with gross realized gains of $350,000 and gross realized losses of $23,000. The Company recognized net losses of $2.2 million on its trading securities portfolio during the year ended December 31, 2022 and net gains of $1.7 million and $1.6 million during the years ended December 31, 2021 and December 31, 2020, respectively. The Company routinely sells securities when market pricing presents, in management’s assessment, an economic benefit that outweighs holding such security, and when smaller balance securities become cost prohibitive to carry. Gross unrealized losses on mortgage-backed securities and other debt securities available-for-sale, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2022 and 2021, were as follows (in thousands): December 31, 2022 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value U.S. Government agency securities $ (3,942) $ 71,058 $ (132) $ 1,018 $ (4,074) $ 72,076 Mortgage-backed securities: Pass-through certificates: GSE (8,112) 142,605 (32,234) 289,890 (40,346) 432,495 REMICs: GSE (8,303) 180,612 (7,843) 84,112 (16,146) 264,724 Other debt securities: Corporate bonds (842) 35,778 (6,029) 129,174 (6,871) 164,952 Total $ (21,199) $ 430,053 $ (46,238) $ 504,194 $ (67,437) $ 934,247 December 31, 2021 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value U.S. Government agency securities $ — $ — $ (54) $ 2,290 $ (54) $ 2,290 Mortgage-backed securities: Pass-through certificates: GSE (2,543) 417,291 (318) 14,625 (2,861) 431,916 REMICs: GSE (1,350) 125,725 (94) 4,413 (1,444) 130,138 Other debt securities: Corporate bonds (744) 146,853 — — (744) 146,853 Total $ (4,637) $ 689,869 $ (466) $ 21,328 $ (5,103) $ 711,197 The Company held 35 pass-through mortgage-backed securities issued or guaranteed by GSEs, 38 REMIC mortgage-backed securities issued or guaranteed by GSEs, 19 corporate bonds, and one U.S. Government agency security that were in a continuous unrealized loss position of twelve months or greater at December 31, 2022. There were 87 pass-through mortgage-backed securities issued or guaranteed by GSEs, 47 REMIC mortgage-backed securities issued or guaranteed by GSEs, eight corporate bonds, and four U.S. Government agency securities that were in an unrealized loss position of less than twelve months at December 31, 2022. All securities referred to above were rated investment grade at December 31, 2022. Available for sale debt securities in unrealized loss positions are evaluated for impairment related to credit losses on a quarterly basis. In performing an assessment of whether any decline in fair value is due to a credit loss, the Company considers the extent to which the fair value is less than the amortized cost, changes in credit ratings, any adverse economic conditions, as well as all relevant information at the individual security level such as credit deterioration of the issuer or collateral underlying the security. In assessing the impairment, the Company compares the present value of cash flows expected to be collected with the amortized cost basis of the security. If it is determined that the decline in fair value was due to credit losses, an allowance for credit losses is recorded, limited to the amount the fair value is less than amortized cost basis. The Company did not recognize any allowance for credit losses on its available-for-sale debt securities during the years ended December 31, 2022 or 2021. The non-credit related decrease in the fair value, such as a decline due to changes in market interest rates, is recorded in other comprehensive income, net of tax. The Company also assesses its intent to sell the securities (as well as the likelihood of a near-term recovery). If the Company intends to sell an available for sale debt security or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis, the debt security is written down to its fair value and the write down is charged to the debt security’s fair value at the reporting date with any incremental impairment reported in earnings. The Company has made the accounting policy election to exclude accrued interest receivable on available-for-sale securities from the estimate of credit losses. Accrued interest receivable associated with debt securities available-for-sale totaled $2.8 million and $2.5 million, respectively, at December 31, 2022 and December 31, 2021 and was reported in accrued interest receivable on the consolidated balance sheets

Debt Securities Held-to-Maturit

Debt Securities Held-to-Maturity	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities Held-to-Maturity	Debt Securities Held-to-Maturity The following is a summary of mortgage-backed securities held-to-maturity at December 31, 2022 and 2021 (in thousands): December 31, 2022 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 10,760 $ 90 $ (461) $ 10,389 Total securities held-to-maturity $ 10,760 $ 90 $ (461) $ 10,389 December 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 5,283 $ 192 $ — $ 5,475 Total securities held-to-maturity $ 5,283 $ 192 $ — $ 5,475 Contractual maturities for mortgage-backed securities are not presented, as expected maturities on mortgage-backed securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without penalties. There were no sales of held-to-maturity securities for the years ended December 31, 2022, 2021 and 2020. At December 31, 2022, and December 31, 2021, debt securities held-to-maturity with a carrying value of $2.0 million and $2.1 million, respectively, were pledged to secure repurchase agreements and deposits. See Note 10 - “Borrowings” for further discussion regarding securities pledged or encumbered for borrowings. Gross unrealized losses on mortgage-backed securities held-to-maturity, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2022 were as follows (in thousands): December 31, 2022 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value Mortgage-backed securities: Pass-through certificates: GSE $ (461) $ 7,433 $ — $ — $ (461) $ 7,433 Total $ (461) $ 7,433 $ — $ — $ (461) $ 7,433 The Company held nine pass-through mortgage-backed debt securities held-to-maturity issued or guaranteed by GSEs that were in an unrealized loss position of less than twelve months at December 31, 2022 and no held-to-maturity securities in an unrealized loss position of greater than twelve months at December 31, 2022. There were no held-to-maturity securities in an unrealized loss position at December 31, 2021. The Company's held-to-maturity securities are residential mortgage-backed securities issued by Ginnie Mae, Freddie Mac and Fannie Mae, and it is expected that the securities will not be settled at prices less than the amortized cost bases of the securities as such securities are backed by the full faith and credit of and/or guaranteed by the U.S. Government. Accordingly, no allowance for credit losses has been recorded for these securities. The Company has made the accounting policy election to exclude accrued interest receivable on held-to-maturity securities from the estimate of credit losses. Accrued interest receivable associated with held-to-maturity securities totaling $39,000 and $16,000, respectively, at December 31, 2022 and December 31, 2021 was reported in accrued interest receivable on the consolidated balance sheets

Equity Securities

Equity Securities	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Equity Securities	Debt Securities Available-for-Sale The following is a comparative summary of mortgage-backed securities and other debt securities available-for-sale at December 31, 2022 and 2021 (in thousands): December 31, 2022 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 76,150 $ — $ (4,074) $ 72,076 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 472,963 1 (40,346) 432,618 Real estate mortgage investment conduits ("REMICs"): GSE 280,870 — (16,146) 264,724 753,833 1 (56,492) 697,342 Other debt securities: Municipal bonds 21 — — 21 Corporate bonds 189,603 2 (6,871) 182,734 189,624 2 (6,871) 182,755 Total debt securities available-for-sale $ 1,019,607 $ 3 $ (67,437) $ 952,173 December 31, 2021 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 2,344 $ — $ (54) $ 2,290 Mortgage-backed securities: Pass-through certificates: GSE 579,035 5,233 (2,862) 581,406 REMICs: GSE 390,755 2,398 (1,443) 391,710 969,790 7,631 (4,305) 973,116 Other debt securities: Municipal bonds 71 1 — 72 Corporate bonds 233,311 192 (744) 232,759 233,382 193 (744) 232,831 Total debt securities available-for-sale $ 1,205,516 $ 7,824 $ (5,103) $ 1,208,237 The following is a summary of the expected maturity distribution of debt securities available-for-sale other than mortgage-backed securities at December 31, 2022 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 154,157 $ 149,006 Due after one year through five years 110,467 104,807 Due after five years through ten years 1,150 1,018 $ 265,774 $ 254,831 Contractual maturities for mortgage-backed securities are not included above, as expected maturities on mortgage-backed securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without penalties. Certain securities available-for-sale are pledged or encumbered to secure borrowings under Pledge Agreements and Repurchase Agreements and for other purposes required by law. At December 31, 2022, and December 31, 2021, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $591.7 million and $522.1 million, respectively. See Note 10 - “Borrowings” for further discussion regarding securities pledged or encumbered for borrowings. For the year ended December 31, 2022, the Company had gross proceeds of $41.5 million on sales of securities available-for-sale with gross realized gains of $279,000 and no gross realized losses. For the year ended December 31, 2021, the Company had gross proceeds of $329.0 million on sales of securities available-for-sale with gross realized gains of $1.5 million and no gross realized losses. For the year ended December 31, 2020, the Company had gross proceeds of $23.6 million on sales of securities available-for-sale with gross realized gains of $350,000 and gross realized losses of $23,000. The Company recognized net losses of $2.2 million on its trading securities portfolio during the year ended December 31, 2022 and net gains of $1.7 million and $1.6 million during the years ended December 31, 2021 and December 31, 2020, respectively. The Company routinely sells securities when market pricing presents, in management’s assessment, an economic benefit that outweighs holding such security, and when smaller balance securities become cost prohibitive to carry. Gross unrealized losses on mortgage-backed securities and other debt securities available-for-sale, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2022 and 2021, were as follows (in thousands): December 31, 2022 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value U.S. Government agency securities $ (3,942) $ 71,058 $ (132) $ 1,018 $ (4,074) $ 72,076 Mortgage-backed securities: Pass-through certificates: GSE (8,112) 142,605 (32,234) 289,890 (40,346) 432,495 REMICs: GSE (8,303) 180,612 (7,843) 84,112 (16,146) 264,724 Other debt securities: Corporate bonds (842) 35,778 (6,029) 129,174 (6,871) 164,952 Total $ (21,199) $ 430,053 $ (46,238) $ 504,194 $ (67,437) $ 934,247 December 31, 2021 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value U.S. Government agency securities $ — $ — $ (54) $ 2,290 $ (54) $ 2,290 Mortgage-backed securities: Pass-through certificates: GSE (2,543) 417,291 (318) 14,625 (2,861) 431,916 REMICs: GSE (1,350) 125,725 (94) 4,413 (1,444) 130,138 Other debt securities: Corporate bonds (744) 146,853 — — (744) 146,853 Total $ (4,637) $ 689,869 $ (466) $ 21,328 $ (5,103) $ 711,197 The Company held 35 pass-through mortgage-backed securities issued or guaranteed by GSEs, 38 REMIC mortgage-backed securities issued or guaranteed by GSEs, 19 corporate bonds, and one U.S. Government agency security that were in a continuous unrealized loss position of twelve months or greater at December 31, 2022. There were 87 pass-through mortgage-backed securities issued or guaranteed by GSEs, 47 REMIC mortgage-backed securities issued or guaranteed by GSEs, eight corporate bonds, and four U.S. Government agency securities that were in an unrealized loss position of less than twelve months at December 31, 2022. All securities referred to above were rated investment grade at December 31, 2022. Available for sale debt securities in unrealized loss positions are evaluated for impairment related to credit losses on a quarterly basis. In performing an assessment of whether any decline in fair value is due to a credit loss, the Company considers the extent to which the fair value is less than the amortized cost, changes in credit ratings, any adverse economic conditions, as well as all relevant information at the individual security level such as credit deterioration of the issuer or collateral underlying the security. In assessing the impairment, the Company compares the present value of cash flows expected to be collected with the amortized cost basis of the security. If it is determined that the decline in fair value was due to credit losses, an allowance for credit losses is recorded, limited to the amount the fair value is less than amortized cost basis. The Company did not recognize any allowance for credit losses on its available-for-sale debt securities during the years ended December 31, 2022 or 2021. The non-credit related decrease in the fair value, such as a decline due to changes in market interest rates, is recorded in other comprehensive income, net of tax. The Company also assesses its intent to sell the securities (as well as the likelihood of a near-term recovery). If the Company intends to sell an available for sale debt security or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis, the debt security is written down to its fair value and the write down is charged to the debt security’s fair value at the reporting date with any incremental impairment reported in earnings. The Company has made the accounting policy election to exclude accrued interest receivable on available-for-sale securities from the estimate of credit losses. Accrued interest receivable associated with debt securities available-for-sale totaled $2.8 million and $2.5 million, respectively, at December 31, 2022 and December 31, 2021 and was reported in accrued interest receivable on the consolidated balance sheets

Loans

Loans	12 Months Ended
	Dec. 31, 2022
Receivables [Abstract]
Loans	Loans The following table summarizes the Company's loans held-for-investment, net, (in thousands): December 31, 2022 2021 Real estate loans: Multifamily $ 2,824,579 $ 2,518,065 Commercial mortgage 899,249 808,597 One-to-four family residential mortgage 173,946 183,665 Home equity and lines of credit 152,555 109,956 Construction and land 24,932 27,495 Total real estate loans 4,075,261 3,647,778 Commercial and industrial loans (1) 154,700 141,005 Other loans 2,230 2,015 Total commercial and industrial and other loans 156,930 143,020 Loans held-for-investment, net (excluding PCD) 4,232,191 3,790,798 PCD 11,502 15,819 Total loans held-for-investment, net 4,243,693 3,806,617 Allowance for credit losses (42,617) (38,973) Net loans held-for-investment $ 4,201,076 $ 3,767,644 (1) Included in commercial and industrial loans at December 31, 2022 and 2021 are PPP loans totaling $5.1 million and $40.5 million, respectively. The Company had no loans held-for-sale at December 31, 2022 or 2021. In addition to originating loans, the Company may acquire loans through portfolio purchases or acquisitions of other companies. Purchased loans that have evidence of more than insignificant credit deterioration since origination are deemed PCD loans. For PCD loans, each loan pool is accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. PCD loans totaled $11.5 million at December 31, 2022, as compared to $15.8 million at December 31, 2021. The majority of the PCD loan balance was attributable to those loans acquired as part of a FDIC-assisted transaction. At December 31, 2022, PCD loans consisted of approximately 9% one-to-four family residential loans, 28% commercial real estate loans, and 53% commercial and industrial loans, and 10% in home equity loans. At December 31, 2021, PCD loans consisted of approximately 16% one-to-four family residential loans, 25% commercial real estate loans, 48% commercial and industrial loans, and 11% in construction and land and home equity loans. Credit Quality Indicators The Company monitors the credit quality of its loan portfolio on a regular basis. Credit quality is monitored by reviewing certain credit quality indicators. Management has determined that loan-to-value ( “LTV” ) ratios (at period end) and internally assigned credit risk ratings by loan type are the key credit quality indicators that best measure the credit quality of the Company’s loan receivables. LTV used by management in monitoring credit quality are based on current period loan balances and original appraised values at the time of origination (unless a current appraisal has been obtained as a result of the loan being deemed impaired). The Company maintains a credit risk rating system as part of the risk assessment of its loan portfolio. The Company’s lending officers are required to assign a credit risk rating to each loan in their portfolio at origination. This risk rating is reviewed periodically and adjusted if necessary. Monthly, management presents monitored assets to the loan committee. In addition, the Company engages a third-party independent loan reviewer that performs semi-annual reviews of a sample of loans, validating the credit risk ratings assigned to such loans. The credit risk ratings play an important role in the establishment of the provision for credit losses on loans and the allowance for credit losses for loans held-for-investment. After determining the loss factor for each portfolio segment held-for-investment, the collectively evaluated for impairment balance of the held-for-investment portfolio is multiplied by the collectively evaluated for impairment loss factor for the respective portfolio segment in order to determine the allowance for loans collectively evaluated for impairment. When assigning a credit risk rating to a loan, management utilizes the Bank’s internal nine-point credit risk rating system. 1. Strong 2. Good 3. Acceptable 4. Adequate 5. Watch 6. Special Mention 7. Substandard 8. Doubtful 9. Loss Loans rated 1 to 5 are considered pass ratings. An asset is classified substandard if it is inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Substandard assets have well defined weaknesses based on objective evidence, and are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Assets classified as doubtful have all of the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses present make collection or liquidation in full highly questionable and improbable based on current circumstances. Assets classified as loss are those considered uncollectible and of such little value that their continuance as assets is not warranted. Assets which do not currently expose the Company to sufficient risk to warrant classification in one of the aforementioned categories, but possess weaknesses, are required to be designated special mention. The following table presents the Company’s loans held-for-investment, excluding PCD loans, by loan class, credit risk ratings and year of origination, at December 31, 2022 (in thousands): December 31, 2022 2022 2021 2020 2019 2018 Prior Revolving Loans Total Real Estate: Multifamily Pass $ 632,613 $ 676,370 $ 500,069 $ 255,374 $ 204,810 $ 545,335 $ 521 $ 2,815,092 Substandard — — — — 3,525 5,962 — 9,487 Total multifamily 632,613 676,370 500,069 255,374 208,335 551,297 521 2,824,579 Commercial Pass 213,621 147,419 68,215 90,644 72,512 275,606 1,664 869,681 Special mention — — — — — 4,852 — 4,852 Substandard 2,889 10,574 — — — 11,253 — 24,716 Total commercial 216,510 157,993 68,215 90,644 72,512 291,711 1,664 899,249 One-to-four family residential Pass 26,432 12,340 8,623 10,057 7,227 105,787 1,006 171,472 Special mention — — — — — 1,716 — 1,716 Substandard — — — — — 758 — 758 Total one-to-four family residential 26,432 12,340 8,623 10,057 7,227 108,261 1,006 173,946 Home equity and lines of credit Pass 36,513 16,053 8,198 5,948 4,484 11,315 69,539 152,050 Special mention — — — — — 70 — 70 Substandard — — — 92 48 295 — 435 Total home equity and lines of credit 36,513 16,053 8,198 6,040 4,532 11,680 69,539 152,555 Construction and land Pass 8,121 1,145 6,335 1,276 1,427 3,905 653 22,862 Substandard — — — — 2,070 — — 2,070 Total construction and land 8,121 1,145 6,335 1,276 3,497 3,905 653 24,932 Total real estate loans 920,189 863,901 591,440 363,391 296,103 966,854 73,383 4,075,261 Commercial and industrial Pass 16,941 14,805 7,754 3,754 1,460 8,172 98,969 151,855 Special mention — — 48 — — 124 214 386 Substandard 291 482 96 50 200 217 1,123 2,459 Total commercial and industrial 17,232 15,287 7,898 3,804 1,660 8,513 100,306 154,700 Other Pass 2,010 — 114 5 6 21 74 2,230 Total other 2,010 — 114 5 6 21 74 2,230 Total loans held-for-investment, net $ 939,431 $ 879,188 $ 599,452 $ 367,200 $ 297,769 $ 975,388 $ 173,763 $ 4,232,191 The following table presents the Company’s loans held-for-investment, excluding PCD loans, by loan class, credit risk ratings and year of origination, at December 31, 2021 (in thousands): December 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Total Real Estate: Multifamily Pass $ 723,029 $ 525,078 $ 322,067 $ 238,692 $ 231,647 $ 461,834 $ 184 $ 2,502,531 Special mention — — — — — 425 — 425 Substandard — — 1,724 5,401 — 7,984 — 15,109 Total multifamily 723,029 525,078 323,791 244,093 231,647 470,243 184 2,518,065 Commercial Pass 153,803 72,718 97,228 99,165 65,750 274,195 2,589 765,448 Special mention — — 505 — 1,095 8,559 — 10,159 Substandard 10,881 — 7,866 — 2,854 11,389 — 32,990 Total commercial 164,684 72,718 105,599 99,165 69,699 294,143 2,589 808,597 One-to-four family residential Pass 12,095 9,040 11,244 13,299 10,232 120,693 1,004 177,607 Special mention — — 467 — — 2,336 — 2,803 Substandard — — 517 — — 2,738 — 3,255 Total one-to-four family residential 12,095 9,040 12,228 13,299 10,232 125,767 1,004 183,665 Home equity and lines of credit Pass 18,449 12,244 7,347 6,031 2,592 11,162 51,494 109,319 Special mention — — — — — 103 — 103 Substandard — — 96 50 — 388 — 534 Total home equity and lines of credit 18,449 12,244 7,443 6,081 2,592 11,653 51,494 109,956 Construction and land Pass 9,883 5,755 2,039 4,062 1,809 3,467 480 27,495 Total construction and land 9,883 5,755 2,039 4,062 1,809 3,467 480 27,495 Total real estate loans 928,140 624,835 451,100 366,700 315,979 905,273 55,751 3,647,778 Commercial and industrial Pass 45,426 10,087 4,378 2,316 640 9,298 61,728 133,873 Special mention — — 166 — 132 224 50 572 Substandard — 361 154 595 — 726 4,724 6,560 Total commercial and industrial 45,426 10,448 4,698 2,911 772 10,248 66,502 141,005 Other Pass 1,715 156 19 26 — 49 50 2,015 Total other 1,715 156 19 26 — 49 50 2,015 Total loans held-for-investment, net $ 975,281 $ 635,439 $ 455,817 $ 369,637 $ 316,751 $ 915,570 $ 122,303 $ 3,790,798 Past Due and Non-Accrual Loans Included in loans receivable held-for-investment are loans for which the accrual of interest income has been discontinued due to deterioration in the financial condition of the borrowers. The recorded investment of these non-accrual loans was $9.8 million and $7.6 million at December 31, 2022, and December 31, 2021, respectively. Generally, originated loans are placed on non-accrual status when they become 90 days or more delinquent, or sooner if considered appropriate by management, and remain on non-accrual status until they are brought current, have six consecutive months of performance under the loan terms, and factors indicating reasonable doubt about the timely collection of payments no longer exist. Therefore, loans may be current in accordance with their loan terms, or may be less than 90 days delinquent and still be on a non-accruing status. When an individual loan no longer demonstrates the similar credit risk characteristics as other loans within its current segment, the Company evaluates each for expected credit losses on an individual basis. All non-accrual loans $500,000 and above and all loans designated as TDRs are individually evaluated. The non-accrual amounts included in loans individually evaluated for impairment were $5.2 million and $4.2 million at December 31, 2022, and December 31, 2021, respectively. Loans on non-accrual status with principal balances less than $500,000, and therefore not meeting the Company’s definition of an impaired loan, amounted to $4.6 million at December 31, 2022, and $3.4 million at December 31, 2021. Loans past due 90 days or more and still accruing interest were $425,000 and $384,000 at December 31, 2022, and December 31, 2021, respectively, and consisted of loans that are well secured and in the process of collection. The following tables set forth the detail, and delinquency status, of non-performing loans (non-accrual loans and loans past due 90 days or more and still accruing), net of deferred fees and costs, at December 31, 2022, and December 31, 2021, excluding PCD loans (in thousands): December 31, 2022 Total Non-Performing Loans Non-Accruing Loans Current 30-89 Days Past Due 90 Days or More Past Due Total 90 Days or More Past Due and Accruing Total Non-Performing Loans Loans held-for-investment: Real estate loans: Multifamily Substandard $ 1,923 $ — $ 1,362 $ 3,285 $ 233 $ 3,518 Total multifamily 1,923 — 1,362 3,285 233 3,518 Commercial Substandard 2,806 431 1,947 5,184 8 5,192 Total commercial 2,806 431 1,947 5,184 8 5,192 One-to-four family residential Substandard — — 118 118 155 273 Total one-to-four family residential — — 118 118 155 273 Home equity and lines of credit Substandard 186 — 76 262 — 262 Total home equity and lines of credit 186 — 76 262 — 262 Total real estate 4,915 431 3,503 8,849 396 9,245 Commercial and industrial loans Substandard — 26 938 964 24 988 Total commercial and industrial loans — 26 938 964 24 988 Other loans Pass — — — — 5 5 Total other — — — — 5 5 Total non-performing loans $ 4,915 $ 457 $ 4,441 $ 9,813 $ 425 $ 10,238 December 31, 2021 Total Non-Performing Loans Non-Accruing Loans Current 30-89 Days Past Due 90 Days or More Past Due Total 90 Days or More Past Due and Accruing Total Non-Performing Loans Loans held-for-investment: Real estate loans: Multifamily Substandard $ — $ 280 $ 1,602 $ 1,882 $ — $ 1,882 Total multifamily — 280 1,602 1,882 — 1,882 Commercial Special mention — — 280 280 — 280 Substandard 2,944 — 1,893 4,837 147 4,984 Total commercial 2,944 — 2,173 5,117 147 5,264 One-to-four family residential Substandard — — 314 314 165 479 Total one-to-four family residential — — 314 314 165 479 Home equity and lines of credit Substandard — — 281 281 — 281 Total home equity and lines of credit — — 281 281 — 281 Total real estate 2,944 280 4,370 7,594 312 7,906 Commercial and industrial loans Pass — — — — 72 72 Substandard 28 — — 28 — 28 Total commercial and industrial loans 28 — — 28 72 100 Total non-performing loans $ 2,972 $ 280 $ 4,370 $ 7,622 $ 384 $ 8,006 The following tables set forth the detail and delinquency status of loans held-for-investment, excluding PCD loans, net of deferred fees and costs, at December 31, 2022 and December 31, 2021 (in thousands): December 31, 2022 Past Due Loans 30-89 Days Past Due 90 Days or More Past Due 90 Days or More Past Due and Accruing Total Past Due Current Total Loans Receivable, net Loans held-for-investment: Real estate loans: Multifamily Pass $ 189 $ — $ — $ 189 $ 2,814,903 $ 2,815,092 Substandard — 1,362 233 1,595 7,892 9,487 Total multifamily 189 1,362 233 1,784 2,822,795 2,824,579 Commercial Pass 726 — — 726 868,955 869,681 Special mention — — — — 4,852 4,852 Substandard 605 1,947 8 2,560 22,156 24,716 Total commercial 1,331 1,947 8 3,286 895,963 899,249 One-to-four family residential Pass 603 — — 603 170,869 171,472 Special mention 69 — — 69 1,647 1,716 Substandard — 118 155 273 485 758 Total one-to-four family residential 672 118 155 945 173,001 173,946 Home equity and lines of credit Pass 657 — — 657 151,393 152,050 Special mention — — — — 70 70 Substandard 173 76 — 249 186 435 Total home equity and lines of credit 830 76 — 906 151,649 152,555 Construction and land Pass — — — — 22,862 22,862 Substandard — — — — 2,070 2,070 Total construction and land — — — — 24,932 24,932 Total real estate 3,022 3,503 396 6,921 4,068,340 4,075,261 Commercial and industrial Pass 573 — — 573 151,282 151,855 Special mention — — — — 386 386 Substandard 498 938 24 1,460 999 2,459 Total commercial and industrial 1,071 938 24 2,033 152,667 154,700 Other loans Pass 5 — 5 10 2,220 2,230 Total other loans 5 — 5 10 2,220 2,230 Total loans held-for-investment $ 4,098 $ 4,441 $ 425 $ 8,964 $ 4,223,227 $ 4,232,191 December 31, 2021 Past Due Loans 30-89 Days Past Due 90 Days or More Past Due 90 Days or More Past Due and Accruing Total Past Due Current Total Loans Receivable, net Loans held-for-investment: Real estate loans: Multifamily Pass $ — $ — $ — $ — $ 2,502,531 $ 2,502,531 Special mention — — — — 425 425 Substandard 280 1,602 — 1,882 13,227 15,109 Total multifamily 280 1,602 — 1,882 2,516,183 2,518,065 Commercial Pass 77 — — 77 765,371 765,448 Special mention 67 280 — 347 9,812 10,159 Substandard — 1,893 147 2,040 30,950 32,990 Total commercial 144 2,173 147 2,464 806,133 808,597 One-to-four family residential Pass 206 — — 206 177,401 177,607 Special mention 387 — — 387 2,416 2,803 Substandard — 314 165 479 2,776 3,255 Total one-to-four family residential 593 314 165 1,072 182,593 183,665 Home equity and lines of credit Pass 316 — — 316 109,003 109,319 Special mention — — — — 103 103 Substandard 96 281 — 377 157 534 Total home equity and lines of credit 412 281 — 693 109,263 109,956 Construction and land Pass — — — — 27,495 27,495 Total construction and land — — — — 27,495 27,495 Total real estate 1,429 4,370 312 6,111 3,641,667 3,647,778 Commercial and industrial Pass 2 — 72 74 133,799 133,873 Special mention — — — — 572 572 Substandard — — — — 6,560 6,560 Total commercial and industrial 2 — 72 74 140,931 141,005 Other loans Pass 15 — — 15 2,000 2,015 Total other loans 15 — — 15 2,000 2,015 Total loans held-for-investment $ 1,446 $ 4,370 $ 384 $ 6,200 $ 3,784,598 $ 3,790,798 The following tables summarize information on non-accrual loans, excluding PCD loans, at December 31, 2022 and December 31, 2021 (in thousands): December 31, 2022 Recorded Investment Unpaid Principal Balance With No Related Allowance Real estate loans: Multifamily $ 3,285 $ 3,294 $ 2,050 Commercial 5,184 5,639 3,069 One-to-four family residential 118 118 — Home equity and lines of credit 262 512 — Commercial and industrial 964 1,288 67 Total non-accrual loans $ 9,813 $ 10,851 $ 5,186 December 31, 2021 Recorded Investment Unpaid Principal Balance With No Related Allowance Real estate loans: Multifamily $ 1,882 $ 1,891 $ 512 Commercial 5,117 5,627 3,729 One-to-four family residential 314 346 — Home equity and lines of credit 281 530 — Commercial and industrial 28 349 — Total non-accrual loans $ 7,622 $ 8,743 $ 4,241 The following table summarizes interest income on non-accrual loans, excluding PCD loans, during the years ended December 31, 2022 and 2021 (in thousands). Year Ended December 31, 2022 2021 Real estate loans: Multifamily $ 154 $ 70 Commercial 124 85 One-to-four family residential 13 10 Home equity and lines of credit 21 2 Commercial and industrial 31 8 Total interest income on non-accrual loans $ 343 $ 175 Collateral-Dependent Loans Loans for which the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral are considered to be collateral-dependent loans. Collateral can have a significant financial effect in mitigating exposure to credit risk and, where there is sufficient collateral, an allowance for credit losses is not recognized or is minimal. For collateral-dependent loans, the allowance for credit losses is individually assessed based on the fair value of the collateral less estimated costs of sale. The Company's collateral-dependent loans are secured by real estate. Collateral values are generally based on appraisals which are adjusted for changes in market indices. As of both December 31, 2022 and December 31, 2021, the Company had $7.4 million of collateral-dependent impaired loans. The collateral-dependent loans at December 31, 2022 consisted of $5.0 million of commercial real estate loans, $2.0 million of multifamily loans, and $335,000 of one-to-four family residential loans. For the year ended December 31, 2022, there was no significant deterioration or changes in the collateral securing these loans. Troubled Debt Restructured Loans There were no loans modified as a TDR during the year ended December 31, 2022. The following table summarizes loans that were modified in a TDR during the year ended December 31, 2021: Year Ended December 31, 2021 Number of Relationships Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (1) (Dollars in thousands) Troubled Debt Restructurings Commercial and industrial 2 $ 96 $ 96 Total Troubled Debt Restructurings 2 $ 96 $ 96 (1) Amounts are at time of modification. There were four commercial and industrial loans to two borrowers modified as TDRs during the year ended December 31, 2021, which were modified to reduce the interest rate, extend the maturity date, and restructure payment terms of the loans. At December 31, 2022 and 2021, the Company had TDRs of $7.0 million and $9.0 million, respectively. Management classifies all TDRs as loans individually evaluated for impairment. Loans individually evaluated for impairment are assessed to determine that the loan’s carrying value is not in excess of the estimated fair value of the collateral less cost to sell, if the loan is collateral-dependent, or the present value of the expected future cash flows, if the loan is not collateral-dependent. Management performs an evaluation of each impaired loan and generally obtains updated appraisals as part of the evaluation. In addition, management adjusts estimated fair values down to appropriately consider recent market conditions, our willingness to accept a lower sales price to effect a quick sale, and costs to dispose of any supporting collateral. Determining the estimated fair value of underlying collateral (and related costs to sell) can be difficult in illiquid real estate markets and is subject to significant assumptions and estimates. Management employs an independent third-party management firm that specializes in appraisal preparation and review to ascertain the reasonableness of updated appraisals. Projecting the expected cash flows under TDRs which are not collateral-dependent is inherently subjective and requires, among other things, an evaluation of the borrower’s current and projected financial condition. Actual results may be significantly different than our projections and our established allowance for credit losses on these loans, which could have a material effect on our financial results.

Allowance for Credit Losses (_A

Allowance for Credit Losses (“ACL”) on Loans	12 Months Ended
	Dec. 31, 2022
Credit Loss [Abstract]
Allowance for Credit Losses (“ACL”) on Loans	Allowance for Credit Losses ("ACL") on Loans Allowance for Collectively Evaluated Loans Held-for-Investment In estimating the quantitative component of the allowance on a collective basis, the Company uses a risk rating migration model which calculates an expected life of loan loss percentage for each loan by generating probability of default and loss given default metrics. These metrics are multiplied by the exposure at the potential default, taking into consideration estimated prepayments, to calculate the quantitative component of the ACL. The metrics are based on the migration of loans from performing to loss by credit risk rating or delinquency categories using historical life-of-loan analysis periods for each loan portfolio pool, and the severity of loss, based on the aggregate net lifetime losses incurred using the Company's own historical loss experience and comparable peer data loss history. The model's expected losses based on loss history are adjusted for qualitative adjustments to address risks that may not be adequately represented in the risk rating migration model. Among other things, these adjustments include and account for differences in: (i) changes in lending policies and procedures; (ii) changes in local, regional, national, and international economic and business conditions and developments that affect the collectability of our portfolio, including the condition of various market segments; (iii) changes in the experience, ability and depth of lending management and other relevant staff; (iv) changes in the quality of our loan review system; (v) the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and (vi) the effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in our existing portfolio. The Company utilizes a two-year reasonable and supportable forecast period after which estimated losses revert to historical loss experience immediately for the remaining life of the loan. In establishing its estimate of expected credit losses, the Company utilizes five externally-sourced forward-looking economic scenarios developed by Moody's Analytics (“Moody's”). Management utilizes five different Moody's scenarios so as to incorporate uncertainties related to the economic environment arising from the COVID-19 pandemic. These scenarios, which range from more benign to more severe economic outlooks, include a “most likely outcome” (the “Baseline” scenario) and four less likely scenarios referred to as the “Upside” and “Downside” scenarios. Each scenario is assigned a weighting with a majority of the weighting placed on the Baseline scenario and lower weights placed on both the Upside and Downside scenarios. The weighting assigned by management is based on the economic outlook and available information at the reporting date. The model projects economic variables under each scenario based on detailed statistical analyses. The Company has identified and selected key variables that most closely correlated to its historical credit performance, which include: Gross domestic product, unemployment, and three collateral indices: the Commercial Property Price Index, the Commercial Property Price Apartment Index and the Case-Shiller Home Price Index. Allowance for Individually Evaluated Loans The Company measures specific reserves for individual loans that do not share common risk characteristics with other loans, consisting of all TDRs and non-accrual loans with an outstanding balance of $500,000 or greater. Loans individually evaluated for impairment are assessed to determine whether the loan’s carrying value is not in excess of the estimated fair value of the collateral less cost to sell, if the loan is collateral-dependent, or the present value of the expected future cash flows, if the loan is not collateral-dependent. Management performs an evaluation of each impaired loan and generally obtains updated appraisals as part of the evaluation. In addition, management adjusts estimated fair values down to appropriately consider recent market conditions, our willingness to accept a lower sales price to effect a quick sale, and costs to dispose of any supporting collateral. Determining the estimated fair value of underlying collateral (and related costs to sell) can be difficult in illiquid real estate markets and is subject to significant assumptions and estimates. Management employs an independent third-party management firm that specializes in appraisal preparation and review to ascertain the reasonableness of updated appraisals. Projecting the expected cash flows under troubled debt restructurings which are not collateral-dependent is inherently subjective and requires, among other things, an evaluation of the borrower’s current and projected financial condition. Actual results may be significantly different than our projections and our established allowance for credit losses on these loans, which could have a material effect on our financial results. Individually impaired loans that have no impairment losses are not considered for collective allowances described earlier. At December 31, 2022 and December 31, 2021, the ACL for loans individually evaluated for impairment was $38,200 and $30,200, respectively. Allowance for Credit Losses – Off-Balance Sheet Exposures An ACL for off-balance-sheet exposures represents an estimate of expected credit losses arising from off-balance sheet exposures such as loan commitments, standby letters of credit and unused lines of credit (loans on books already). Commitments to fund unused lines of credit are agreements to lend additional funds to customers as long as there have been no violations of any of the conditions established in the agreements (original or restructured). Commitments to originate loans generally have a fixed expiration or other termination clauses, which may require payment of a fee. Since some of these loan commitments are expected to expire without being drawn upon, total commitments do not necessarily represent future cash requirements. The reserve for off-balance sheet exposures is determined using the Current Expected Credit Losses (“CECL”) reserve factor in the related funded loan segment, adjusted for an average historical funding rate. The allowance for credit losses for off-balance sheet credit exposures is recorded in other liabilities on the consolidated balance sheets and the corresponding provision is included in other non-interest expense. The table below summarizes the allowance for credit losses for off-balance sheet credit exposures as of, and for the years ended December 31, 2022 and 2021 (in thousands): Year Ended December 31, 2022 2021 Balance at beginning of year $ 1,852 $ 808 Impact of CECL adoption — 737 Balance at beginning of year 1,852 1,545 (Benefit)/provision for credit losses (1,061) 307 Balance at end of year $ 791 $ 1,852 A summary of changes in the allowance for credit losses for the years ended December 31, 2022, 2021, and 2020 follows (in thousands): December 31, 2022 2021 2020 Balance at beginning of year $ 38,973 $ 37,607 $ 28,707 Impact of CECL adoption — 10,353 — Balance at January 1 38,973 47,960 28,707 Provision/(benefit) for credit losses 4,482 (6,184) 12,742 Recoveries 487 278 465 Charge-offs (1,325) (3,081) (4,307) Balance at end of year $ 42,617 $ 38,973 $ 37,607 The following tables set forth activity in our allowance for credit losses by loan type, as of, and for the years ended, December 31, 2022, and December 31, 2021. The following tables also detail the amount of loans receivable held-for-investment, net of deferred loan fees and costs, that are evaluated, individually and collectively, for impairment, and the related portion of allowance for credit losses that is allocated to each loan portfolio segment (in thousands): December 31, 2022 Real Estate Commercial (1) One-to-Four Family Home Equity and Lines of Credit Construction and Land Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Allowance for credit losses: Beginning balance $ 26,785 $ 3,545 $ 560 $ 169 $ 3,173 $ 9 $ 34,241 $ 4,732 $ 38,973 Charge-offs (278) — — — (446) — (724) (601) (1,325) Recoveries 102 32 19 — 144 12 309 178 487 Provisions (credit) 2,876 359 287 155 1,243 (12) 4,908 (426) 4,482 Ending balance $ 29,485 $ 3,936 $ 866 $ 324 $ 4,114 $ 9 $ 38,734 $ 3,883 $ 42,617 Ending balance: individually evaluated for impairment $ 18 $ — $ 2 $ — $ 18 $ — $ 38 $ — $ 38 Ending balance: collectively evaluated for impairment $ 29,467 $ 3,936 $ 864 $ 324 $ 4,096 $ 9 $ 38,696 $ — $ 38,696 Ending balance: PCD loans evaluated for impairment (2) $ — $ — $ — $ — $ — $ — $ — $ 3,883 $ 3,883 Loans, net: Ending balance $ 3,723,828 $ 173,946 $ 152,555 $ 24,932 $ 154,700 $ 2,230 $ 4,232,191 $ 11,502 $ 4,243,693 Ending balance: individually evaluated for impairment $ 8,152 $ 666 $ 27 $ — $ 94 $ — $ 8,939 $ — $ 8,939 Ending balance: collectively evaluated for impairment $ 3,715,676 $ 173,280 $ 152,528 $ 24,932 $ 149,463 $ 2,230 $ 4,218,109 $ — $ 4,218,109 Ending balance: PCD loans evaluated for impairment (2) $ — $ — $ — $ — $ — $ — $ — $ 11,502 $ 11,502 Paycheck Protection Program (“PPP”) loans not evaluated for impairment (3) $ — $ — $ — $ — $ 5,143 $ — $ 5,143 $ — $ 5,143 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. (2) Upon adoption of CECL, the Company elected to maintain pools of PCD loans that were previously accounted for under ASC 310-30, and will continue to evaluate PCD loans under this guidance. (3) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for credit losses. The allowance for credit losses on loans increased to $42.6 million at December 31, 2022, compared to $39.0 million at December 31, 2021, primarily due to growth in the loan portfolio as well as a declining macroeconomic forecast, partially offset by an improvement in asset quality and lower net charge-offs. The improvement in asset quality is primarily attributable to an improvement in risk ratings as loans previously modified for COVID-19 relief returned to consistent payment status. December 31, 2021 Real Estate Commercial (1) One-to-Four Family Home Equity and Lines of Credit Construction and Land Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Allowance for credit losses: Beginning balance $ 33,005 $ 207 $ 260 $ 1,214 $ 1,842 $ 198 $ 36,726 $ 881 $ 37,607 Impact of CECL adoption (1,949) 5,233 419 (921) 947 (188) 3,541 6,812 10,353 Balance at January 1, 2021 31,056 5,440 679 293 2,789 10 40,267 7,693 47,960 Charge-offs — (21) — — (646) (3) (670) (2,411) (3,081) Recoveries 60 29 26 — 39 5 159 119 278 Provisions (credits) (4,331) (1,903) (145) (124) 991 (3) (5,515) (669) (6,184) Ending balance $ 26,785 $ 3,545 $ 560 $ 169 $ 3,173 $ 9 $ 34,241 $ 4,732 $ 38,973 Ending balance: individually evaluated for impairment $ 25 $ 2 $ 2 $ — $ 1 $ — $ 30 $ — $ 30 Ending balance: collectively evaluated for impairment $ 26,760 $ 3,543 $ 558 $ 169 $ 3,172 $ 9 $ 34,211 $ — $ 34,211 Ending balance: PCD loans evaluated for impairment (2) $ — $ — $ — $ — $ — $ — $ — $ 4,732 $ 4,732 Loans, net: Ending balance $ 3,326,662 $ 183,665 $ 109,956 $ 27,495 $ 141,005 $ 2,015 $ 3,790,798 $ 15,819 $ 3,806,617 Ending balance: individually evaluated for impairment $ 8,352 $ 1,562 $ 38 $ — $ 34 $ — $ 9,986 $ — $ 9,986 Ending balance: collectively evaluated for impairment $ 3,318,310 $ 182,103 $ 109,918 $ 27,495 $ 100,454 $ 2,015 $ 3,740,295 $ — $ 3,740,295 Ending balance: PCD loans evaluated for impairment (2) $ — $ — $ — $ — $ — $ — $ — $ 15,819 $ 15,819 PPP loans not evaluated for impairment (3) $ — $ — $ — $ — $ 40,517 $ — $ 40,517 $ — $ 40,517 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. (2) Upon adoption of CECL, the Company elected to maintain pools of PCD loans that were previously accounted for under ASC 310-30, and will continue to evaluate PCD loans under this guidance. (3) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for credit losses.

Premises and Equipment, Net

Premises and Equipment, Net	12 Months Ended
	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Premises and Equipment, Net	Premises and Equipment, Net At December 31, 2022 and 2021, premises and equipment, less accumulated depreciation and amortization, consists of the following (in thousands): December 31, 2022 2021 At cost: Land $ 5,156 $ 5,156 Buildings and improvements 13,189 13,150 Capital leases 2,600 2,600 Furniture, fixtures, and equipment 32,783 31,269 Leasehold improvements 29,147 28,148 82,875 80,323 Accumulated depreciation and amortization (58,031) (54,386) Premises and equipment, net $ 24,844 $ 25,937

Deposits

Deposits	12 Months Ended
	Dec. 31, 2022
Deposits [Abstract]
Deposits	Deposits Deposit account balances are summarized as follows (dollars in thousands): As of December 31, 2022 2021 Amount Weighted Average Rate Amount Weighted Average Rate Transaction: Negotiable orders of withdrawal and interest-bearing checking $ 1,132,290 0.51 % $ 1,112,292 0.06 % Non-interest bearing checking 852,660 — % 898,490 — % Total transaction 1,984,950 0.29 % 2,010,782 0.03 % Savings: Money market 508,067 0.47 % 609,430 0.07 % Savings 917,180 0.14 % 1,166,761 0.10 % Total savings 1,425,247 0.26 % 1,776,191 0.09 % Certificates of deposit: Under $100,000 525,944 3.06 % 154,320 0.59 % $100,000 or more 214,078 1.17 % 228,041 0.75 % Total certificates of deposit 740,022 2.51 % 382,361 0.69 % Total deposits $ 4,150,219 0.68 % $ 4,169,334 0.12 % The Company had brokered deposits (included in certificates of deposit in the table above) of $390.0 million and $31.0 million at December 31, 2022 and 2021, respectively. Scheduled maturities of certificates of deposit are summarized as follows (in thousands): December 31, 2022 2023 $ 685,323 2024 28,653 2025 14,663 2026 3,968 2027 7,415 Total $ 740,022 Interest expense on deposits is summarized as follows (in thousands): December 31, 2022 2021 2020 Transaction $ 1,759 $ 805 $ 2,372 Savings and money market 1,851 2,226 7,869 Certificates of deposit 6,679 3,176 14,989 $ 10,289 $ 6,207 $ 25,230

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Borrowings	Borrowings Borrowings consisted of FHLB advances, securities sold under agreements to repurchase (repurchase agreements), and floating rate advances and other interest-bearing liabilities (which include cash collateral pledged by derivative counterparties to offset interest-rate exposure) and are summarized as follows (in thousands): December 31, 2022 2021 Repurchase agreements $ 25,000 $ 50,000 Other borrowings: FHLB advances (1) 547,000 365,000 Floating rate advances and other interest-bearing liabilities 11,859 6,755 $ 583,859 $ 421,755 (1) Included within FHLB advances at December 31, 2022 was a $177.0 million overnight line of credit. FHLB advances are secured by a blanket lien on unencumbered securities and the Company’s FHLB capital stock. At December 31, 2022 and 2021, FHLB advances and repurchase agreements had contractual maturities as follows (in thousands): December 31, 2022 FHLB Repurchase Advances Agreements 2023 $ 264,500 $ — 2024 25,000 25,000 2025 112,500 — 2026 20,000 — Thereafter 125,000 — $ 547,000 $ 25,000 December 31, 2021 FHLB Repurchase Advances Agreements 2022 $ 95,000 $ 25,000 2023 87,500 — 2024 25,000 25,000 2025 112,500 — Thereafter 45,000 — $ 365,000 $ 50,000 Further information regarding FHLB advances and repurchase agreements is summarized as follows (in thousands): December 31, 2022 2021 2022 2021 FHLB Advances Repurchase Agreements Average balance during year $ 351,725 $ 434,422 $ 34,795 $ 60,068 Maximum outstanding at any month end $ 547,000 $ 510,000 $ 50,000 $ 75,000 Weighted average interest rate at end of year 3.14 % 2.10 % 2.42 % 2.36 % Weighted average interest rate during year 1.83 % 2.08 % 8.21 % 2.36 % All of the repurchase agreements mature after more than 90 days. The repurchase agreements were secured primarily by mortgage-backed securities with an amortized cost of $35.2 million and a fair value of $33.2 million as of December 31, 2022. At December 31, 2021, the repurchase agreements were secured primarily by mortgage-backed securities with an amortized cost of $52.6 million and a fair value of $53.8 million. The Company has the ability to obtain additional funding from the FHLB and Federal Reserve Bank discount window of approximately $1.93 billion, utilizing unencumbered and unpledged securities of $359.9 million and multifamily loans of $1.57 billion at December 31, 2022. The Company expects to have sufficient funds available to meet current commitments in the normal course of business.

Subordinated Debt

Subordinated Debt	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Subordinated Debt	Subordinated Debt On June 17, 2022, the Company issued $62.0 million in aggregate principal amount of fixed-to-floating subordinated notes (the “Notes”) to certain institutional investors. The Notes mature on June 30, 2032, unless redeemed earlier. The Notes initially bear interest, payable semi-annually in arrears, at a fixed rate of 5.00% per annum until June 30, 2027. Beginning June 30, 2027 and until maturity or redemption, the interest rate applicable to the outstanding principal amount of the Notes due will reset quarterly to an interest rate per annum equal to the then current three-month Secured Overnight Financing Rate plus 200 basis points, payable quarterly in arrears. The Company has the option to redeem the Notes, at par and in whole or in part, beginning on June 30, 2027 and to redeem the Notes at any time in whole upon certain other events. Any redemption of the Notes will be subject to prior regulatory approval to the extent required. Debt issuance costs totaled $1.1 million and are being amortized to maturity. The Company recognized amortization expense of $112,000 for the year ended December 31, 2022. The Company intends to use the net proceeds from the issuance of the Notes for general corporate purposes, including to fund potential repurchases of shares of the Company’s outstanding common stock. On August 17, 2022, the SEC declared effective a Registration Statement on Form S-4 with respect to the exchange of the Notes for publicly registered subordinated notes with the same terms as the Notes. On September 16, 2022, the Company completed the exchange of the Notes for the publicly registered subordinated notes. All of the Notes were exchanged by the holders thereof.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense (benefit) consists of the following (in thousands): December 31, 2022 2021 2020 Federal tax expense (benefit): Current $ 15,784 $ 15,313 $ 11,270 Deferred (233) 3,107 (2,391) 15,551 18,420 8,879 State and local tax expense (benefit): Current 8,581 8,001 4,825 Deferred (392) 52 (667) 8,189 8,053 4,158 Total income tax expense $ 23,740 $ 26,473 $ 13,037 Reconciliation between the amount of reported total income tax expense and the amount computed by multiplying the applicable statutory income tax rate for the years ended December 31, 2022, 2021, and 2020, is as follows (dollars in thousands): December 31, 2022 2021 2020 Tax expense at statutory rate $ 17,820 $ 20,397 $ 10,505 Applicable statutory federal income tax rate 21 % 21 % 21 % Increase (decrease) in taxes resulting from: State tax, net of federal income tax 6,469 6,362 3,285 Bank owned life insurance (717) (862) (793) ESOP fair market value adjustment 69 102 42 Incentive stock options — 6 18 Merger related costs — — 147 Other, net 99 468 (167) Income tax expense $ 23,740 $ 26,473 $ 13,037 New Jersey State Taxation On July 1, 2018, the State of New Jersey enacted legislation which established a 2.5% surtax on businesses that have New Jersey allocated net income in excess of $1.0 million. As originally enacted, the surtax was effective as of January 1, 2018 and continued through 2019, and was scheduled to decrease to 1.5% for 2020 and 2021, and expired beginning on or after January 1, 2022. Legislation enacted on September 29, 2020, extended the surtax rate of 2.5% through December 31, 2023, to be applied retrospectively to January 1, 2020. In addition, effective for taxable years beginning on or after January 1, 2019, banks are required to file combined reports of taxable income including their parent holding company. In May 2019, the State of New Jersey issued a tax technical bulletin, subsequently revised in December 2019, which gives guidance on the treatment of real estate investment trusts in connection with the combined reporting for New Jersey corporate business tax purposes. Real estate investment trusts and investment companies will be excluded from the combined group and will continue to file separate New Jersey tax returns. The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2022 and 2021, are as follows (in thousands): December 31, 2022 2021 Deferred tax assets: Allowance for credit losses $ 12,202 $ 11,057 Capitalized leases Deferred compensation 2,958 3,145 Accrued salaries 1,610 1,338 Postretirement benefits 313 354 Equity awards 2,091 2,051 Straight-line leases adjustment 1,608 1,713 Asset retirement obligation 47 68 Reserve for accrued interest receivable 681 620 Reserve for loan commitments 231 537 Employee Stock Ownership Plan 633 645 Other 323 317 Depreciation 3,552 3,229 Fair value adjustments of acquired loans 1,057 1,440 Fair value adjustments of pension benefit obligations 130 139 Unrealized losses on securities 18,875 — Total gross deferred tax assets 46,311 26,653 Deferred tax liabilities: Unrealized gains on securities – AFS — 761 Unrealized actuarial gains on post retirement benefits 65 15 Fair value adjustments of acquired securities 280 580 Fair value adjustments of deposit liabilities 32 28 Deferred loan fees 2,553 2,010 Other 20 23 Total gross deferred tax liabilities 2,950 3,417 Net deferred tax asset $ 43,361 $ 23,236 Net deferred tax assets are included in other assets on the consolidated balance sheets. On January 1, 2021, the Company recorded $1.2 million of deferred tax assets as a result of the adoption of CECL. The Company has determined that it is not required to establish a valuation reserve for the deferred tax asset since it is “more likely than not” that the deferred tax asset will be realized through future reversals of existing taxable temporary differences. The conclusion that it is “more likely than not” that the deferred tax asset will be realized is based on the history of earnings and the prospects for continued profitability. Management will continue to review the tax criteria related to the recognition of deferred tax assets. As a savings institution, the Bank is subject to a special federal tax provision regarding its frozen tax bad debt reserve. At December 31, 2022 and December 31, 2021, the Bank’s federal tax bad debt base-year reserve was $5.9 million, with a related net deferred tax liability of $2.8 million, which has not been recognized since the Bank does not expect that this reserve will become taxable in the foreseeable future. Events that would result in taxation of this reserve include redemptions of the Bank’s stock or certain excess distributions by the Bank to the Company. A reconciliation of the Company’s uncertain tax positions are as follows (in thousands): December 31, 2022 2021 2020 Beginning balance $ 141 $ 157 $ 190 Settlements based on tax positions related to prior years (31) (125) (33) (Reductions) additions based on tax positions related to prior years (23) 109 — Ending balance $ 87 $ 141 $ 157 The Company recognizes interest and penalties on income taxes in income tax expense. The following years are open for examination or under examination: • Federal tax filings for 2019 through present. • New York State tax filings 2015 through present. The 2015 through 2018 filings are currently under examination. • New York City tax filings 2019 through present. • State of New Jersey 2018 through present.

Retirement Benefits

Retirement Benefits	12 Months Ended
	Dec. 31, 2022
Retirement Benefits [Abstract]
Retirement Benefits	Retirement Benefits The Company has a 401(k) plan for its employees, which grants eligible employees (those salaried employees with at least three months of service) the opportunity to invest from 2% to 100% (subject to certain IRS limitations) of their base compensation in certain investment alternatives. The Company contributes an amount equal to 25% of employee contributions on the first 6% of base compensation contributed by eligible employees for the first three years of participation. Subsequent years of participation in excess of three years will increase the Company matching contribution from 25% to 50% of an employee’s contributions, on the first 6% of base compensation contributed by eligible employees. A member becomes fully vested in the Company’s contributions upon (a) completion of five years of service, or (b) normal retirement, early retirement, permanent disability, or death. The Company’s contribution to this plan amounted to approximately $553,000, $515,000, and $508,000 for the years ended December 31, 2022, 2021, and 2020, respectively. The Company maintains the Northfield Bank ESOP. The ESOP is a tax-qualified plan designed to invest primarily in the Company’s common stock. The ESOP provides employees with the opportunity to receive a funded retirement benefit from the Bank, based primarily on the value of the Company’s common stock. The ESOP purchased 2,463,884 shares of the Company’s common stock in the Company’s initial public offering at a price of $7.13 per share, as adjusted. This purchase was funded with a loan from Northfield Bancorp, Inc. to the ESOP. The outstanding balance at December 31, 2022 and 2021 was $7.6 million and $8.5 million, respectively. The shares of the Company’s common stock purchased in the initial public offering are pledged as collateral for the loan. Shares are released for allocation to participants as loan payments are made. A total of 117,998 and 123,460 shares were released and allocated to participants of the ESOP for the years ended December 31, 2022 and 2021, respectively. Cash dividends on unallocated shares are utilized to satisfy required debt payments. Dividends on allocated shares are utilized to prepay debt which releases additional shares to participants. Upon completion of the Company’s second-step conversion, a second ESOP was established for employees in 2013, which purchased 1,422,357 shares of the Company’s common stock at a price of $10.00 per share. The purchase was funded with a loan from Northfield Bancorp, Inc. to the second ESOP. The outstanding balance at December 31, 2022 and 2021 was $10.2 million and $10.8 million, respectively. The shares of the Company’s common stock purchased in the second-step conversion are pledged as collateral for the loan. Shares are released for allocation to participants as loan payments are made. A total of 56,700 and 59,064 shares were released and allocated to participants of the second ESOP for the years ended December 31, 2022 and 2021, respectively. Cash dividends on unallocated shares are utilized to satisfy required debt payments. Dividends on allocated shares are utilized to prepay debt which releases additional shares to participants. ESOP compensation expense for both plans for the years ended December 31, 2022, 2021, and 2020 was $1.7 million, $1.9 million, and $1.4 million, respectively. The Company maintains a Supplemental Employee Stock Ownership Plan (the "SESOP"), a non-qualified plan, that provides supplemental benefits to certain executives who are prevented from receiving the full benefits contemplated by the ESOP’s benefit formula due to tax law limits for tax-qualified plans. The supplemental payments for the SESOP consist of cash payments representing the value of Company shares that cannot be allocated to participants under the ESOP due to legal limitations imposed on tax-qualified plans. The Company's required contributions to the SESOP plan were $54,000, $41,000, and $57,000 for the years ended December 31, 2022, 2021, and 2020, respectively. The Company provides post-retirement medical and life insurance to a limited number of retired individuals. The Company also provides retiree life insurance benefits to all qualified employees, up to certain limits. The following tables set forth the funded status and components of postretirement benefit costs at December 31 measurement dates (in thousands): 2022 2021 2020 Accumulated postretirement benefit obligation beginning of year $ 979 $ 1,133 $ 1,241 Interest cost 26 22 33 Actuarial gain (109) (77) (44) Benefits paid (81) (99) (97) Accumulated postretirement benefit obligation end of year 815 979 1,133 Accrued liability (included in accrued expenses and other liabilities) $ 815 $ 979 $ 1,133 The following table sets forth the amounts recognized in accumulated other comprehensive income (loss) (in thousands): December 31, 2022 2021 Net (gain) loss $ (98) $ 87 Prior service credit (133) (171) Loss recognized in accumulated other comprehensive income (loss) $ (231) $ (84) The estimated net gain and prior service credit that will be amortized from accumulated other comprehensive income (loss) into net periodic cost in 2023, are $2,000 and $19,000, respectively. The following table sets forth the components of net periodic postretirement benefit costs for the years ended December 31, 2022, 2021, and 2020 (in thousands): December 31, 2022 2021 2020 Interest cost 26 22 33 Amortization of prior service credits (19) (20) (20) Amortization of unrecognized loss — — 1 Net postretirement benefit cost included in compensation and employee benefits $ 7 $ 2 $ 14 The assumed discount rate related to plan obligations reflects the weighted average of published market rates for high-quality corporate bonds with terms similar to those of the plans expected benefit payments, rounded to the nearest quarter percentage point. The Company’s discount rate and rate of compensation increase used in accounting for the plan are as follows: 2022 2021 2020 Assumptions used to determine benefit obligation at period end: Discount rate 5.02 % 2.50 % 2.00 % Rate of increase in compensation (1) N/A N/A N/A Assumptions used to determine net periodic benefit cost for the year: Discount rate 2.50 % 2.00 % 2.75 % Rate of increase in compensation (1) N/A N/A N/A (1) Since the covered population is only retirees, a compensation rate increase assumption was not used. At December 31, 2022, a medical cost trend rate of 8.75% decreasing 0.50% per year thereafter until an ultimate rate of 4.75% is reached, was used in the plan’s valuation. The Company’s healthcare cost trend rates are based, among other things, on the Company’s own experience and third-party analysis of recent and projected healthcare cost trends. A one percentage-point change in assumed healthcare cost trends would have the following effects (in thousands): One Percentage Point Increase One Percentage Point Decrease 2022 2021 2022 2021 Aggregate of service and interest components of net periodic cost (benefit) $ 3 $ 2 $ (2) $ (2) Effect on accumulated postretirement benefit obligation 80 78 (70) (68) Benefit payments of approximately $81,000, $99,000, and $97,000 were made in 2022, 2021, and 2020, respectively. The benefits expected to be paid under the postretirement health benefits plan for the next five years are as follows: $80,000 in 2023; $78,000 in 2024; $76,000 in 2025; $73,000 in 2026; and $70,000 in 2027. The benefit payments expected to be paid in the aggregate for the years 2028 through 2032 are $299,000. The expected benefits are based on the same assumptions used to measure the Company’s benefit obligation at December 31, 2022, and include estimated future employee service.

Equity Incentive Plans

Equity Incentive Plans	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Equity Incentive Plans	Equity Incentive Plans On May 22, 2019, the Northfield Bancorp, Inc. 2019 Equity Incentive Plan (the “2019 EIP”) was approved by stockholders of the Company. Under the 2019 EIP, the maximum number of shares of stock that may be delivered to participants in the form of stock options and stock appreciation rights (“SARs”) is 6,000,000. To the extent an equity award is issued in the form of a restricted stock grant, or restricted stock unit, the number of stock options/SARs that can be granted is reduced by 4.5. The maximum number of shares of stock that may be delivered to participants in the form of restricted stock awards and restricted stock units is 1,333,333 shares. As of December 31, 2022, a total of 4,097,387 stock options, SARs and restricted stock awards or restricted stock units remained available for issuance under the 2019 EIP, of which the maximum number of restricted stock awards and restricted stock units available for issuance was 910,530. Prior to May 22, 2019, the Company also maintained the Northfield Bancorp, Inc. 2014 Equity Incentive Plan (the “2014 EIP”) which allowed the Company to grant common stock or options to purchase common stock at specific prices to directors and employees of the Company. The 2014 EIP provided for the issuance or delivery of up to 4,978,249 shares (1,422,357 restricted shares and 3,555,892 stock options) of Northfield Bancorp, Inc. common stock subject to certain plan limitations. Upon approval of the 2019 EIP, the 2014 EIP was frozen and equity awards that would otherwise have been available for issuance were no longer available for grant, however, options previously granted under the 2014 EIP still remain outstanding and exercisable. There were no stock options granted in 2022, 2021 or 2020. During the years ended December 31, 2022, 2021, and 2020, the Company recorded, $1.8 million, $994,000, and $1.4 million of stock-based compensation, respectively. The following table is a summary of the Company’s stock options as of December 31, 2022, and changes therein during the year then ended: Number of Stock Options Weighted Average Grant Date Fair Value Weighted Average Exercise Price Weighted Average Contractual Life (years) Outstanding- December 31, 2020 2,214,193 $ 4.01 $ 13.94 3.96 Forfeited (50,169) 13.62 Exercised (394,045) 3.96 13.90 — Outstanding- December 31, 2021 1,769,979 4.02 13.95 2.95 Exercised (187,153) 3.92 13.23 — Outstanding- December 31, 2022 1,582,826 4.03 14.04 2.01 Exercisable- December 31, 2022 1,582,826 $ 4.03 $ 14.04 2.01 There was no remaining future stock option expense related to the options outstanding as of December 31, 2022, as all are vested. On January 28, 2022, the Company granted to directors and employees, under the 2019 Equity Incentive Plan, 157,416 restricted stock awards with a total grant-date fair value of $2.5 million. Of these grants, 30,798 vest one year from the date of grant and 126,618 vest in equal installments over a three-year period beginning one year from the date of grant. The Company also issued 24,492 performance-based restricted stock units to its executive officers with a total grant date fair value of $386,484. Vesting of the performance-based restricted stock units will be based on achievement of certain levels of Core Return on Average Assets and will cliff-vest after a three-year measurement period ended January 28, 2025. At the end of the performance period, the number of actual shares to be awarded may vary between 0% and 120% of target amounts. On January 29, 2021, the Company granted to directors and employees, under the 2019 Equity Incentive Plan, 147,315 restricted stock units with a total grant-date fair value of $1.8 million. Of these grants, 32,769 vest one year from the date of grant and 114,546 vest in equal installments over a five-year period beginning one year from the date of grant. The Company also issued 29,615 performance-based restricted stock units to its executive officers with a total grant date fair value of $366,041. Vesting of the performance-based restricted stock units will be based on achievement of certain levels of Core Return on Average Assets and will cliff-vest after a three-year measurement period ended January 29, 2024, based on the Company's performance relative to a peer group as determined by the Compensation Committee of the Board. At the end of the performance period, the number of actual shares to be awarded may vary between 0% and 225% of target amounts. On February 17, 2020, the Company granted to directors and employees, under the 2019 EIP, 83,744 restricted stock units with a total grant-date fair value of $1.3 million. Of these grants, 28,460 vest one year from the date of grant and 55,284 vest in equal installments over a five-year period beginning one year from the date of grant. The Company also issued 19,837 performance-based restricted stock units to its executive officers with a total grant date fair value of $313,623. Vesting of the performance-based restricted stock units will be based on achievement of certain levels of Core Return on Average Assets and will cliff-vest after a three-year measurement period ended February 17, 2023 based on the Company's performance relative to a peer group as determined by the Compensation Committee of the Board. At the end of the performance period, the number of actual shares to be awarded may vary between 0% and 225% of target amounts. The following is a summary of the status of the Company’s restricted shares as of December 31, 2022, and changes therein during the year then ended: Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2020 104,010 $ 15.91 Granted 176,930 12.36 Vested (42,470) 16.06 Forfeited (15,626) 13.80 Non-vested at December 31, 2021 222,844 13.21 Granted 181,908 15.78 Vested (62,836) 12.87 Forfeited (20,415) 14.34 Non-vested at December 31, 2022 321,501 $ 14.66 Expected future stock award expense related to the non-vested restricted awards as of December 31, 2022, is $2.8 million over an average period of 2.30 years. Upon the exercise of stock options, management expects to utilize treasury stock as the source of issuance for these shares.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company, in the normal course of business, is party to commitments that involve, to varying degrees, elements of risk in excess of the amounts recognized in the consolidated financial statements. These commitments include unused lines of credit and commitments to extend credit. At December 31, 2022 and 2021, the following commitment and contingent liabilities existed that are not reflected in the accompanying consolidated financial statements (in thousands): December 31, 2022 2021 Commitments to extend credit $ 37,473 $ 159,403 Unused lines of credit 288,380 245,860 Standby letters of credit 4,432 3,266 The Company’s maximum exposure to credit losses in the event of nonperformance by the other party to these commitments is represented by the contractual amount. The Company uses the same credit policies in granting commitments and conditional obligations as it does for amounts recorded in the consolidated balance sheets. These commitments and obligations do not necessarily represent future cash flow requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s assessment of risk. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third-party. The guarantees generally extend for a term of up to one year and are fully collateralized. For each guarantee issued, if the customer defaults on a payment to the third-party, the Company would have to perform under the guarantee. The unamortized fee on standby letters of credit approximates their fair value; such fees were insignificant at both December 31, 2022 and 2021. The Company maintains an allowance for credit losses on commitments to extend credit in other liabilities. The reserve for off-balance sheet exposures is determined using the CECL reserve factor in the related funded loan segment, adjusted for an average historical funding rate. At December 31, 2022 and 2021, the allowance was $791,000 and $1.9 million, respectively, and is recorded in other liabilities on the consolidated balance sheets. The corresponding provision is included in other non-interest expense. For further details on the allowance for credit losses on off-balance sheet exposures refer to Note 7 - “Allowance for Credit Losses (“ACL”) on Loans.” At December 31, 2022, the Company was obligated under non-cancelable operating leases on property used for banking purposes. Most leases contain escalation clauses and renewal options which provide for increased rentals as well as for increases in certain property costs including real estate taxes, common area maintenance, and insurance. For further details on leases see Note 21 - “Leases.” In the normal course of business, the Company may be a party to various outstanding legal proceedings and claims. In the opinion of management, the consolidated financial statements will not be materially affected by the outcome of such legal proceedings and claims.

Regulatory Requirements

Regulatory Requirements	12 Months Ended
	Dec. 31, 2022
Regulatory Requirements [Abstract]
Regulatory Requirements	Regulatory Requirements Federal regulations require federally insured depository institutions to meet several minimum capital standards: a common equity Tier 1 capital to risk-based assets ratio of 4.5%, a Tier 1 capital to risk-based assets ratio of 6.0%, a total capital to risk-based assets of 8.0%, and a 4.0% Tier 1 capital to total assets leverage ratio. Under prompt corrective action regulations, the OCC is required to take certain supervisory actions (and may take additional discretionary actions) with respect to an undercapitalized institution. Such actions could have a direct material effect on the institution’s financial statements. The regulations establish a framework for the classification of savings institutions into five categories: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized. Generally, an institution is considered well capitalized if it has a leverage (Tier 1) ratio of 5.0% or greater, a common equity Tier 1 ratio of 6.5% or greater, a Tier 1 risk-based capital ratio of 8.0% or greater, and a total risk-based capital ratio of 10.0% or greater. The foregoing capital ratios are based in part on specific quantitative measures of assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. Capital amounts and classifications also are subject to qualitative judgments by the regulators about capital components, risk weighting, and other factors. Under the U.S. Basel III capital framework, both Northfield Bank and the Company must maintain minimum capital requirements which include: (i) a common equity Tier 1 capital to risk-based assets ratio of 4.5%; (ii) a Tier 1 capital to risk-based assets ratio of 6%; (iii) a total capital to risk-based assets of 8%; and (iv) a Tier 1 capital to total assets leverage ratio of 4%. In addition to establishing the minimum regulatory capital requirements, the regulations limit capital distributions and certain discretionary bonus payments to management if the institution does not hold a “capital conservation buffer” consisting of 2.5% of common equity Tier 1 capital to risk-weighted assets in addition to the amount necessary to meet its minimum risk-based capital requirements. As a result of the Economic Growth, Regulatory Relief, and Consumer Protection Act, the federal banking agencies developed a “Community Bank Leverage Ratio” (“CBLR”) (the ratio of a bank’s tangible equity capital to average total consolidated assets) for financial institutions with assets of less than $10 billion. A qualifying community bank that exceeds this ratio will be deemed to be in compliance with all other capital and leverage requirements, including the capital requirements to be considered “well capitalized” under Prompt Corrective Action statutes. The federal banking agencies approved 9% as the minimum capital for the CBLR. Effective March 31, 2020, a financial institution could elect to be subject to this new definition. Northfield Bank and Northfield Bancorp elected to opt into the CBLR framework. The CBLR replaced the risk-based and leverage capital requirements in the generally applicable capital rules. On April 6, 2020, the federal banking regulators, implementing the applicable provisions of the CARES Act, modified the CBLR framework so that the minimum CBLR was 8% beginning in the second quarter and for the remainder of calendar year 2020, 8.5% for calendar year 2021, and 9% thereafter. At December 31, 2022, and 2021, as set forth in the following tables, both Northfield Bank and the Company exceeded all of the regulatory capital requirements to which they were subject at such dates. The following is a summary of Northfield Bank’s regulatory capital amounts and ratios compared to the regulatory requirements as of December 31, 2022 and 2021, for classification as a well-capitalized institution and minimum capital (dollars in thousands): For Well For Capital Capitalized Adequacy Under Prompt Corrective Actual Purposes Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2022: CBLR $ 710,719 12.68 % $ 504,284 9.00 % $ 504,284 9.00 % As of December 31, 2021: CBLR $ 659,522 12.24 % $ 457,872 8.50 % $ 457,872 8.50 % The following is a summary of the Company's regulatory capital amounts and ratios compared to the regulatory requirements as of December 31, 2022 and 2021, for classification as well-capitalized and minimum capital (dollars in thousands). For Well For Capital Capitalized Adequacy Under Prompt Corrective Actual Purposes Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2022: CBLR $ 708,430 12.65 % $ 503,977 9.00 % $ 503,977 9.00 % As of December 31, 2021: CBLR $ 696,368 12.93 % $ 457,751 8.50 % $ 457,751 8.50 %

Fair Value Measurement

Fair Value Measurement	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurement	Fair Value Measurement The following tables present the assets reported on the consolidated balance sheets at their estimated fair value as of December 31, 2022 and 2021, by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification ("ASC"). Financial assets and liabilities are classified in their entirety based on the level of input that is significant to the fair value measurement. 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 the Company’s own assumptions that market participants would use in pricing the assets or liabilities. Fair Value Measurements at December 31, 2022 Using: Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Significant Unobservable (in thousands) Measured on a recurring basis: Assets: Investment securities: Debt securities available-for-sale: U.S. Government agency securities $ 72,076 $ — $ 72,076 $ — Mortgage-backed securities: Pass-through certificates: GSE 432,618 — 432,618 — REMICs: GSE 264,724 — 264,724 — 697,342 — 697,342 — Other debt securities: Municipal bonds 21 — 21 — Corporate bonds 182,734 — 182,734 — 182,755 — 182,755 — Total debt securities available-for-sale 952,173 — 952,173 — Trading securities 10,751 10,751 — — Equity securities (1) 361 361 — — Total $ 963,285 $ 11,112 $ 952,173 $ — Measured on a non-recurring basis: Assets: Loans individually evaluated for impairment: Real estate loans: Commercial real estate $ 2,631 $ — $ — $ 2,631 Multifamily 1,923 — — 1,923 Home equity and lines of credit 24 — — 24 Total individually evaluated real estate loans 4,578 — — 4,578 Commercial and industrial loans 62 — — 62 Total $ 4,640 $ — $ — $ 4,640 (1) Excludes investment measured at net asset value of $10.1 million at December 31, 2022, which has not been classified in the fair value hierarchy. Fair Value Measurements at December 31, 2021 Using: Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Significant Unobservable (in thousands) Measured on a recurring basis: Assets: Investment securities: Debt securities available-for-sale: U.S Government agency securities $ 2,290 $ — $ 2,290 $ — Mortgage-backed securities Pass-through certificate GSE 581,406 — 581,406 — REMICs: GSE 391,710 $ — 391,710 — 973,116 — 973,116 — Other debt securities: Municipal bonds 72 — 72 — Corporate bonds 232,759 — 232,759 — 232,831 — 232,831 — Total debt securities available-for sale 1,208,237 — 1,208,237 — Trading securities 13,461 13,461 — — Equity securities (1) 328 328 — — Total $ 1,222,026 $ 13,789 $ 1,208,237 $ — Measured on a non-recurring basis: Assets: Loans individually evaluated for impairment: Real estate loans: Commercial real estate $ 3,599 $ — $ — $ 3,599 One-to-four family residential mortgage 169 — — 169 Home equity and lines of credit 27 — — 27 Total impaired real estate loans 3,795 — — 3,795 Commercial and industrial loans 12 — — 12 Other real estate owned 100 — — 100 Total $ 3,907 $ — $ — $ 3,907 (1) Excludes investment measured at net asset value of $5.0 million at December 31, 2021, which has not been classified in the fair value hierarchy. The following table presents qualitative information for Level 3 assets measured at fair value on a non-recurring basis at December 31, 2022 (dollars in thousands): Fair Value Valuation Methodology Unobservable Inputs Range of Inputs (in thousands) Individually evaluated loans $ 4,640 Appraisals Discount for costs to sell 7.0% Discount for quick sale 10.0% Discounted cash flows Interest rates 4.88% - 7.50% The following table presents qualitative information for Level 3 assets measured at fair value on a non-recurring basis at December 31, 2021 (dollars in thousands): Fair Value Valuation Methodology Unobservable Inputs Range of Inputs (in thousands) Individually evaluated loans $ 3,807 Appraisals Discount for costs to sell 7.0% Discount for quick sale 10.0% Discounted cash flows Interest rates 4.88% - 6.25% Other real estate owned 100 Appraisals Discount for costs to sell 7.0% The valuation techniques described below were used to measure fair value of financial instruments in the tables below on a recurring basis and a non-recurring basis as of December 31, 2022 and 2021. Debt Securities Available-for-Sale: The estimated fair values for mortgage-backed securities, corporate, and other debt securities are obtained from an independent nationally recognized third-party pricing service. The estimated fair values are derived primarily from cash flow models, which include assumptions for interest rates, credit losses, and prepayment speeds. Broker/dealer quotes are utilized as well, when such quotes are available and deemed representative of the market. The significant inputs utilized in the cash flow models are based on market data obtained from sources independent of the Company (Observable Inputs), and are therefore classified as Level 2 within the fair value hierarchy. There were no transfers of securities between Level 1 and Level 2 during the years ended December 31, 2022 and 2021. Trading Securities: Fair values are derived from quoted market prices in active markets. The assets consist of publicly traded mutual funds. Equity Securities: Fair values of equity securities consisting of publicly traded mutual funds are derived from quoted market prices in active markets. Loans Individually Evaluated for Impairment: At December 31, 2022, and December 31, 2021, the Company had loans individually evaluated for impairment (excluding PCD loans) with outstanding principal balances of $6.7 million and $5.8 million, respectively, which were recorded at their estimated fair value of $4.6 million and $3.8 million, respectively. The Company recorded a net increase in the specific reserve for impaired loans of $8,000, and a net decrease in the specific reserve of $43,000 for the years ended December 31, 2022 and 2021, respectively. The Company recorded net charge-offs of $838,000 for the year ended December 31, 2022, as compared to net charge-offs of $2.8 million for the year ended December 31, 2021, utilizing Level 3 inputs. For purposes of estimating the fair value of impaired loans, management utilizes independent appraisals, if the loan is collateral-dependent, adjusted downward by management, as necessary, for changes in relevant valuation factors subsequent to the appraisal date, or the present value of expected future cash flows for non-collateral-dependent loans and TDRs. Other Real Estate Owned: At December 31, 2022, the Company had no assets acquired through foreclosure. At December 31, 2021, the Company had other real estate owned of approximately $100,000, recorded at estimated fair value, less estimated selling costs when acquired, thus establishing a new cost basis. The property was located in New Jersey and was sold during the second quarter of 2022 for a small gain. Estimated fair value is generally based on independent appraisals. These appraisals include adjustments to comparable assets based on the appraisers’ market knowledge and experience, and are considered Level 3 inputs. When an asset is acquired, the excess of the loan balance over fair value, less estimated selling costs, is charged to the allowance for credit losses. If the estimated fair value of the asset declines, a write-down is recorded through non-interest expense. The valuation of foreclosed assets is subjective in nature and may be adjusted in the future because of changes in the economic conditions. In addition, the Company may be required, from time to time, to measure the fair value of certain other financial assets on a non-recurring basis in accordance with U.S. GAAP. The adjustments to fair value usually result from the application of lower-of-cost-or-market accounting or write downs of individual assets. Fair Value of Financial Instruments The FASB ASC Topic for Financial Instruments requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The following methods and assumptions were used to estimate the fair value of other financial assets and financial liabilities not already discussed above: (a) Cash and Cash Equivalents Cash and cash equivalents are short-term in nature with original maturities of three months or less; the carrying amount approximates fair value. Certificates of deposit having original terms of six-months or less; the carrying value generally approximates fair value. Certificates of deposit with an original maturity of six months or greater; the fair value is derived from discounted cash flows. (b) Debt Securities (Held-to-Maturity) The estimated fair values for substantially all of our securities are obtained from an independent, nationally recognized pricing service. The independent pricing service utilizes market prices of same or similar securities whenever such prices are available. Prices involving distressed sellers are not utilized in determining fair value. Where necessary, the independent third-party pricing service estimates fair value using models employing techniques such as discounted cash flow analysis. The assumptions used in these models typically include assumptions for interest rates, credit losses, and prepayments, utilizing market observable data where available. (c) Investments in Equity Securities at Net Asset Value Per Share The Company uses net asset value as a practical expedient to record its investment in a private SBA Loan Fund since the shares in the fund are not publicly traded, do not have a readily determinable fair value, and the net asset value per share is calculated in a manner consistent with the measurement principles of an investment company. (d) FHLBNY Stock The fair value for FHLBNY stock is its carrying value, since this is the amount for which it could be redeemed and there is no active market for this stock. (e) Loans (Held-for-Investment) Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as originated and purchased, and further segregated by residential mortgage, construction, land, multifamily, commercial and consumer. Each loan category is further segmented into amortizing and non-amortizing and fixed and adjustable rate interest terms and by performing and non-performing categories. The fair value of loans is estimated using a discounted cash flow analysis. The discount rates used to determine fair value use interest rate spreads that reflect factors such as liquidity, credit, and non-performance risk of the loans. (f) Loans (Held-for-Sale) Held-for-sale loans are carried at the lower of aggregate cost or estimated fair value, less costs to sell, and therefore fair value is equal to carrying value. (g) Deposits The fair value of deposits with no stated maturity, such as interest and non-interest-bearing demand deposits, savings, NOW and money market accounts, is equal to the amount payable on demand. The fair value of certificates of deposit 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. (h) Commitments to Extend Credit and Standby Letters of Credit The fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair value of off-balance-sheet commitments is insignificant and therefore not included in the following table. (i) Borrowings The fair value of borrowed funds is estimated by discounting future cash flows based on rates currently available for debt with similar terms and remaining maturity. (j) Advance Payments by Borrowers for Taxes and Insurance Advance payments by borrowers for taxes and insurance have no stated maturity; the fair value is equal to the amount currently payable. (k) Derivatives The fair value of the Company's derivatives is determined using discounted cash flow analysis using observable market-based inputs, which are considered Level 2 inputs. The estimated fair values of the Company’s significant financial instruments at December 31, 2022 and 2021, are presented in the following tables (in thousands): December 31, 2022 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 45,799 $ 45,799 $ — $ — $ 45,799 Trading securities 10,751 10,751 — — 10,751 Debt securities available-for-sale 952,173 — 952,173 — 952,173 Debt securities held-to-maturity 10,760 — 10,389 — 10,389 Equity securities (1) 361 361 — — 361 FHLBNY stock, at cost 30,382 — 30,382 — 30,382 Net loans held-for-investment 4,201,076 — — 4,016,849 4,016,849 Derivative assets 5,321 — 5,321 — 5,321 Financial liabilities: Deposits $ 4,150,219 $ — $ 4,148,938 $ — $ 4,148,938 FHLB advances and other borrowings (including securities sold under agreements to repurchase) 583,859 — 564,588 — 564,588 Subordinated debentures, net of issuance costs 60,996 — 54,393 — 54,393 Advance payments by borrowers for taxes and insurance 25,995 — 25,995 — 25,995 Derivative liabilities 5,321 — 5,321 — 5,321 (1) Excludes investment measured at net asset value of $10.1 million at December 31, 2022, which has not been classified in the fair value hierarchy. December 31, 2021 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 91,068 $ 91,068 $ — $ — $ 91,068 Trading securities 13,461 13,461 — — 13,461 Debt securities available-for-sale 1,208,237 — 1,208,237 — 1,208,237 Debt securities held-to-maturity 5,283 — 5,475 — 5,475 Equity securities (1) 328 328 — — 328 FHLBNY stock, at cost 22,336 — 22,336 — 22,336 Net loans held-for-investment 3,767,644 — — 3,904,026 3,904,026 Derivative assets 923 — 923 — 923 Financial liabilities: Deposits $ 4,169,334 $ — $ 4,172,125 $ — $ 4,172,125 FHLB advances and other borrowings (including securities sold under agreements to repurchase) 421,755 — 426,235 — 426,235 Advance payments by borrowers for taxes and insurance 24,909 — 24,909 — 24,909 Derivative liabilities 925 — 925 — 925 (1) Excludes investment measured at net asset value of $5.0 million at December 31, 2021, which has not been classified in the fair value hierarchy. Limitations Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected losses, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on- and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. 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.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2022
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following is a summary of the Company’s earnings per share calculations and reconciliation of basic to diluted earnings per share for the periods indicated (in thousands, except share and per share data): December 31, 2022 2021 2020 Net income available to common stockholders $ 61,119 $ 70,654 $ 36,988 Weighted average shares outstanding-basic 46,234,122 48,416,495 48,721,504 Effect of non-vested restricted stock and stock options outstanding 203,997 337,768 64,459 Weighted average shares outstanding-diluted 46,438,119 48,754,263 48,785,963 Earnings per share-basic $ 1.32 $ 1.46 $ 0.76 Earnings per share-diluted $ 1.32 $ 1.45 $ 0.76 Anti-dilutive shares 756,765 323,466 1,972,136

Stock Repurchase Program

Stock Repurchase Program	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Stock Repurchase Program	Stock Repurchase Program On March 18, 2021, the Board of Directors of the Company approved a stock repurchase program of $54.2 million which was completed in March 2022 upon reaching the purchase limit. On June 16, 2022, the Board of Directors of the Company approved a new $45.0 million stock repurchase program. Under the stock repurchase programs, the Company is authorized to repurchase shares and anticipates conducting such repurchases in accordance with Rule 10b5-1 of the Securities and Exchange Commission. The timing of the repurchases will depend on certain factors, including but not limited to, market conditions and prices, the Company’s liquidity and capital requirements, and alternative uses of capital. Any repurchased shares will be held as treasury stock and will be available for general corporate purposes. The repurchases may be suspended, terminated or modified at any time for any reason, including market conditions, the cost of repurchasing shares, the availability of alternative investment opportunities, liquidity, and other factors deemed appropriate. These factors may also affect the timing and amount of share repurchases. The Company is not obligated to purchase any particular number of shares. During the year ended December 31, 2022, the Company repurchased 2,092,157 shares of its common stock outstanding at an average price of $14.72 for a total of $30.8 million pursuant to the stock repurchase plan. At December 31, 2022, the maximum dollar value of shares remaining for repurchase under the plan was $22.4 million. During the year ended December 31, 2021, the Company repurchased 3,342,700 shares of its common stock outstanding at an average price of $15.91 for a total of $53.2 million, pursuant to the stock repurchase plan. At December 31, 2021, the maximum dollar value of shares remaining for repurchase under the plan was $8.3 million.

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The Company records revenue from contracts with customers in accordance with ASU 2014-09, Revenue from Contracts with Customers ("Topic 606") . The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Topic 606 does not apply to revenue associated with financial instruments, including revenue from loans and securities, which comprise the majority of the Company’s revenue. The Company’s revenue streams that are within the scope of Topic 606 include service charges on deposit accounts, ATM and card interchange fees, investment services fees, and other miscellaneous income. Fees and service charges for customer services include: (i) service charges on deposit accounts, including account maintenance fees, overdraft fees, insufficient funds fees, wire fees, and other deposit related fees; (ii) ATM and card interchange fees, which include fees generated when a Bank cardholder uses a non-Bank ATM or a non-Bank cardholder uses a Bank ATM, and fees earned whenever the Bank's debit cards are processed through card payment networks such as Visa; and (iii) investment services fees earned through partnering with a third-party investment and brokerage service firm to provide insurance and investment products to customers. The Company's performance obligation for fees and service charges is satisfied and related revenue recognized immediately or in the month of performance of services. For the year ended December 31, 2022, other income primarily included rental income from subleasing one of the Company's branches to a third party and loan servicing fees. In prior years, other income primarily included rental income from subleasing one of the Company's branches to a third party, loan servicing fees, and fee income on interest rate swaps. The following table summarizes non-interest income for the periods indicated (in thousands): December 31, 2022 2021 2020 Fees and service charges for customer services: Service charges $ 3,380 $ 3,075 $ 2,356 ATM and card interchange fees 1,920 1,893 1,326 Investment fees 405 426 285 Total fees and service charges for customer services 5,705 5,394 3,967 Income on bank-owned life insurance (1) 3,414 4,103 3,774 Gains on available-for-sale debt securities, net (1) 279 1,495 327 (Losses)/gains on trading securities, net (1) (2,206) 1,703 1,601 Gains on sale of loans (1) 453 1,401 665 Other (1) 338 357 1,138 Total non-interest income $ 7,983 $ 14,453 $ 11,472 (1) Not within the scope of Topic 606

Leases

Leases	12 Months Ended
	Dec. 31, 2022
Leases [Abstract]
Leases	Leases The Company’s leases primarily relate to real estate property for branches and office space with terms extending from three months up to 32.5 years. At December 31, 2022, all of the Company's leases are classified as operating leases, which are required to be recognized on the consolidated balance sheets as a right-of-use asset and a corresponding lease liability. The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use assets and operating lease liabilities in the consolidated balance sheets. Right-of-use assets represent the right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recorded at the present value of lease payments over the lease term. As the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate, at lease inception, over a similar term in determining the present value of lease payments. Certain leases include options to renew, with one or more renewal terms ranging from five At December 31, 2022, the Company’s operating lease right-of-use assets and operating lease liabilities included in the consolidated balance sheet were $34.3 million and $39.8 million, respectively. At December 31, 2021, the Company’s operating lease right-of-use assets and operating lease liabilities included in the consolidated balance sheet were $33.9 million and $39.9 million, respectively. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are recognized as incurred. Variable lease payments include common area maintenance charges, real estate taxes, repairs and maintenance costs and utilities. Operating and variable lease expenses are recorded in occupancy expense in the consolidated statements of comprehensive income. Supplemental lease information at or for the years ended December 31, 2022 and 2021 is as follows (dollars in thousands): At or for the Year Ended December 31, 2022 December 31, 2021 December 31, 2020 Operating lease cost $ 6,006 $ 5,797 $ 6,160 Variable lease cost 3,621 4,092 3,276 Net lease cost $ 9,627 $ 9,889 $ 9,436 Cash paid for amounts included in measurement of operating lease liabilities $ 6,350 $ 6,538 $ 6,490 Right-of-use assets obtained in exchange for new operating lease liabilities $ 4,983 $ 1,596 $ 3,568 Weighted average remaining lease term (in years) 11.22 years 11.84 years 12.28 years Weighted average discount rate 3.54 % 3.55 % 3.60 % The following table summarizes lease payment obligations for each of the next five years and thereafter in addition to a reconcilement to the Company's current lease liability (dollars in thousands): Year Amount 2023 $ 6,490 2024 6,069 2025 5,729 2026 4,967 2027 4,007 Thereafter 22,557 Total lease payments 49,819 Less: imputed interest (10,029) Present value of lease liabilities $ 39,790 Net rental expense included in occupancy expense was approximately $6.1 million, $5.9 million, and $8.0 million for the years ended December 31, 2022, 2021, and 2020, respectively. Included in rental expense for the year ended December 31, 2020 is approximately $1.8 million of accelerated rental expense related to the branch consolidations. As of December 31, 2022, the Company had not entered into any leases that have not yet commenced.

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives The Company has interest rate derivatives resulting from a service provided to certain qualified borrowers in a loan-related transaction and, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. The interest rate swap agreement which the Company executed with the commercial borrower is collateralized by the borrower’s commercial real estate financed by the Company. The collateral exceeds the maximum potential amount of future payments under the credit derivative. As these interest rate swaps do not meet the hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings. At December 31, 2022, the Company had seven interest rate swaps with a notional amount of $37.0 million. At December 31, 2021, the Company had seven interest rate swaps with a notional amount of $38.1 million. The Company recorded no fee income related to these swaps for the years ended December 31, 2022 and 2021. The table below presents the fair value of derivatives as well as their location on the consolidated balance sheets (in thousands): Fair Value December 31, Balance Sheet Location 2022 2021 Other assets $ 5,321 $ 923 Other liabilities 5,321 925

Parent-only Financial Informati

Parent-only Financial Information	12 Months Ended
	Dec. 31, 2022
Condensed Financial Information Disclosure [Abstract]
Parent-only Financial Information	Parent-only Financial Information The following condensed parent company-only financial information reflects Northfield Bancorp, Inc.’s investment in its wholly-owned consolidated subsidiary, Northfield Bank, using the equity method of accounting. Northfield Bancorp, Inc. Condensed Balance Sheets December 31, 2022 2021 (in thousands) Assets Cash in Northfield Bank $ 39,950 $ 14,411 Investment in Northfield Bank 703,666 703,036 ESOP loan receivable 17,814 19,283 Other assets 1,635 3,412 Total assets $ 763,065 $ 740,142 Liabilities and Stockholders' Equity Subordinated debentures, net of issuance costs $ 60,996 $ — Total liabilities 679 259 Total stockholders' equity 701,390 739,883 Total liabilities and stockholders' equity $ 763,065 $ 740,142 Northfield Bancorp, Inc. Condensed Statements of Comprehensive Income Years Ended December 31, 2022 2021 2020 (in thousands) Interest on ESOP loan $ 627 $ 677 $ 1,043 Interest income on deposits in other financial institutions 4 18 129 Undistributed earnings of Northfield Bank 62,964 70,956 37,544 Total income 63,595 71,651 38,716 Interest expense on subordinated debt 1,797 — — Other expenses 1,020 831 1,647 Income tax expense (341) 166 81 Total expenses 2,476 997 1,728 Net income $ 61,119 $ 70,654 $ 36,988 Comprehensive income: Net income $ 61,119 $ 70,654 $ 36,988 Other comprehensive (loss) income, net of tax (50,394) (11,097) 8,461 Comprehensive income $ 10,725 $ 59,557 $ 45,449 Northfield Bancorp, Inc. Condensed Statements of Cash Flows December 31, 2022 2021 2020 (in thousands) Cash flows from operating activities Net income $ 61,119 $ 70,654 $ 36,988 Adjustments to reconcile net income to net cash used in operating activities: Decrease (increase) in other assets 702 (4,034) (1,008) Amortization of debt issuance costs 112 — — Increase (decrease) in other liabilities 420 12 (1,499) Undistributed earnings of Northfield Bank (62,964) (70,956) (37,544) Net cash used in operating activities (611) (4,324) (3,063) Cash flows from investing activities Cash and cash equivalents acquired in business acquisition — — 5,903 Dividends from Northfield Bank 17,143 69,916 16,174 Net cash provided by investing activities 17,143 69,916 22,077 Cash flows from financing activities Proceeds from issuance of subordinated debt, net of issuance costs 60,884 — — Principal payments on ESOP loan receivable 1,469 1,553 1,061 Purchase of treasury stock (30,881) (53,321) (10,405) Dividends paid (24,127) (24,299) (21,476) Exercise of stock options 1,662 3,409 175 Net cash provided by (used in) financing activities 9,007 (72,658) (30,645) Net increase (decrease) in cash and cash equivalents 25,539 (7,066) (11,631) Cash and cash equivalents at beginning of year 14,411 21,477 33,108 Cash and cash equivalents at end of year $ 39,950 $ 14,411 $ 21,477

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements are comprised of the accounts of Northfield Bancorp, Inc. and its wholly owned subsidiaries, Northfield Investment, Inc. and Northfield Bank (the “Bank”), and the Bank’s wholly-owned significant subsidiaries, NSB Services Corp. and NSB Realty Trust. All significant intercompany accounts and transactions have been eliminated in consolidation. 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 balance sheets and revenues and expenses during the reporting periods. Actual results may differ significantly from those estimates and assumptions. A material estimate that is particularly susceptible to significant change in the near term is the allowance for credit losses. In connection with the determination of this allowance, management generally obtains independent appraisals for significant properties. In addition, judgments related to the amount and timing of expected cash flows from purchased credit-deteriorated (“PCD”, or, previously, purchased credit-impaired “PCI”) loans, goodwill, securities valuation and impairment, and deferred income taxes, involve a higher degree of complexity and subjectivity and require estimates and assumptions about uncertain matters. Actual results may differ from the estimates and assumptions. Certain prior year amounts have been reclassified to conform to the current year presentation.
Recent Accounting Pronouncements	(b) Recent Accounting Pronouncements ASU No. 2016-03 In June 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): “Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). This guidance was subsequently amended by ASU No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments”; ASU No. 2019-05, “Financial Instruments-Credit Losses (Topic 326): Targeted Transition Relief”; and ASU No. 2019-11, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses”. ASU No. 2016-13 and its subsequent updates are collectively known as “CECL”. CECL replaces the current incurred loss impairment model that recognizes losses when a probable threshold is met with a requirement to recognize lifetime expected credit losses immediately when a financial asset is originated or purchased. For available-for-sale debt securities where fair value is less than cost, credit-related impairment would be recognized in an allowance for credit losses and adjusted in each subsequent period for changes in credit risk. CECL also expands the disclosure requirements regarding an entity’s assumptions, models, and methods for estimating the allowance for credit losses. The Company adopted ASU 2016-13 and its related amendments on January 1, 2021, using a modified retrospective approach. At adoption, the Company recorded an $11.1 million increase to its allowance for credit losses, including reserves of $10.4 million related to loans and $737,000 related to unfunded credit commitments. Of the $10.4 million increase in loan reserves, $6.8 million represents PCD loan-related reserves which were recognized through a gross-up that increases the amortized cost basis of loans with a corresponding increase to the allowance for credit losses, and therefore results in no impact to shareholders' equity. The non-PCD loan related increase to the allowance for credit losses of $4.3 million, including the reserves for unfunded loan commitments, was offset in shareholders' equity and deferred tax assets. For further details on the adoption of CECL see Note 6 - Loans Note 7 - Allowance for Credit Losses on Loans ASU No. 2019-12. In December 2019, the FASB issued ASU No. 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes.” ASU No. 2019-12 simplifies accounting for income taxes by removing specific technical exceptions in ASC 740 related to the incremental approach for intra-period tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for outside basis differences. ASU No. 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The amendments in this update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. The Company adopted ASU 2019-12 on January 1, 2021, which did not have a material impact on the Company's Consolidated Financial Statements. ASU No. 2020-04 . In March, 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform ("ASC 848"): Facilitation of the Effects of Reference Rate Reform on Financial Reporting”, which provides temporary optional guidance to ease the potential burden in accounting for reference rate reform. The ASU provides optional expedients and exceptions for applying generally accepted accounting principles to contract modifications and hedging relationships, subject to meeting certain criteria, that reference the London Inter-Bank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued. It is intended to help stakeholders during the global market-wide reference rate transition period. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022. However, in December 2022, the FASB issued ASU 2022-06, deferring the sunset date to December 31, 2024. The Company has evaluated the regulatory requirements to cease the use of LIBOR and has put in place systems and capabilities for this purpose. The adoption of this ASU is not expected to have a material impact on the Company's Consolidated Financial Statements. ASU No. 2022-02 . In March 2022, the FASB issued ASU No. 2022-02, “Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures”. The amendments in this ASU were issued to (1) eliminate accounting guidance for TDRs by creditors, while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty; (2) require disclosures of current period gross write-offs by year of origination for financing receivables and net investments in leases. For entities that have adopted the amendments in ASU 2016-13, Measurement of Credit Losses on Financial Instruments, this update will be effective for financial statements issued for fiscal years and interim periods beginning after December 15, 2022. Early adoption is permitted. The amendments in this ASU are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. The adoption of this ASU is not expected to have a material impact on the Company's Consolidated Financial Statements.
Business	Business The Company, through its principal subsidiary, the Bank, provides a full range of banking services primarily to individuals and corporate customers in Richmond and Kings counties in New York, and Hunterdon, Mercer, Union and Middlesex counties in New Jersey. The Company is subject to competition from other financial institutions and to the regulations of certain federal and state agencies, and undergoes periodic examinations by those regulatory authorities.
Cash Equivalents	Cash Equivalents Cash equivalents consist of cash on hand, due from banks, and interest-bearing deposits in other financial institutions with an original term of three months or less.
Securities	Securities Securities are classified at the time of purchase, based on management’s intention, as debt securities held-to-maturity, debt securities available-for-sale, trading account securities or equity securities. Debt securities held-to-maturity are those that management has the positive intent and ability to hold until maturity. Debt securities held-to-maturity are carried at amortized cost, adjusted for amortization of premiums and accretion of discounts using the level-yield method over the contractual term of the securities, adjusted for actual prepayments. Debt securities available-for-sale represents all securities not classified as either held-to-maturity, trading, or equity. Debt securities available-for-sale are carried at estimated fair value with unrealized holding gains and losses (net of related tax effects) on such securities excluded from earnings, but included as a separate component of stockholders’ equity, titled “Accumulated other comprehensive income (loss).” The cost of securities sold is determined using the specific-identification method. Security transactions are recorded on a trade-date basis. For securities available for sale, ASU 2016-13 eliminates the concept of other than temporary impairment and instead requires entities to determine if impairment is related to credit loss or non-credit loss. In making the assessment of whether a loss is from credit or other factors, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency and adverse conditions related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows is less than the amortized cost basis, a credit loss exists and an allowance is created, limited by the amount that the fair value is less than the amortized cost basis. Subsequent activity related to the credit loss component in the form of write-offs or recoveries is recognized as part of the allowance for credit losses on securities available for sale. Management measures expected credit losses on held-to-maturity debt securities on a collective basis by major security type. All of the held-to-maturity securities in the Company's portfolio are issued by U.S. government agencies and are either explicitly or implicitly guaranteed by the U.S government and therefore the expectation of nonpayment is zero. Therefore the Company is not required to estimate an allowance for credit losses related to these securities. Prior to the adoption of ASU 2016-13, our evaluation of other-than-temporary impairment considered our assessments of the reason for the decline in value, the duration and severity of the impairment, our intent and ability to hold the securities (as well as the likelihood of a near-term recovery), and our intent to sell the securities and whether it was more likely than not that we would be required to sell the securities before the recovery of their amortized cost basis. If a determination was made that a debt security was other-than-temporarily impaired, the Company would estimate the amount of the unrealized loss that was attributable to credit and all other non-credit related factors. If we intended to hold securities in an unrealized loss position until the loss was recovered, which may be at maturity, the credit related component was recognized as an other-than-temporary impairment charge in non-interest income. The non-credit related component was recorded as an adjustment to accumulated other comprehensive income (loss), net of tax. The estimated fair value of debt securities, including mortgage-backed securities and corporate debt obligations is furnished by an independent third-party pricing service. The third-party pricing service primarily utilizes pricing models and methodologies that incorporate observable market inputs, including among other things, benchmark yields, reported trades, and projected prepayment and default rates. Management reviews the data and assumptions used in pricing the securities by its third-party provider for reasonableness. The Company has made the accounting policy election to exclude accrued interest receivable on securities from the estimate of credit losses. Accrued interest receivable totaled $2.8 million and $2.5 million, respectively, at December 31, 2022 and 2021 and is reported in accrued interest receivable on the consolidated balance sheets. Trading securities are securities that are bought and may be held for the purpose of selling them in the near term. Trading securities are reported at estimated fair value, using quoted prices in active markets, with unrealized holding gains and losses reported as a component of gain (loss) on securities, net in non-interest income.
Loans and Allowance for Credit Losses	Loans and Allowance for Credit Losses The accounting and reporting for PCD loans and loans classified as held-for-sale differs substantially from those loans classified by the Company as held-for-investment. For purposes of reporting, discussion and analysis, management has classified its loan portfolio into three categories: (1) loans originated by the Company and held-for-sale, which are carried at the lower of aggregate cost or estimated fair value, less costs to sell, and therefore have no associated allowance for loan losses, (2) PCD loans, which are held-for-investment, and initially valued at estimated fair value on the date of acquisition, with no initial related allowance for credit losses, and (3) Loans held-for-investment, which include originated loans carried at amortized cost, and acquired loans, with no evidence of credit deterioration, initially valued at fair value on the date of acquisition, less net charge-offs and the allowance for credit losses. Net loans held-for-investment are stated at unpaid principal balance, adjusted by unamortized premiums and unearned discounts, deferred origination fees and certain direct origination costs, and the allowance for credit losses. Interest income on loans is accrued and credited to income as earned. Net loan origination fees/costs are deferred and accreted/amortized to interest income over the loan’s contractual life using the level-yield method, adjusted for actual prepayments. Generally, loans held-for-sale are designated at time of origination and generally consist of newly originated fixed rate residential loans and are recorded at the lower of aggregate cost or estimated fair value in the aggregate. During 2021 and 2020, the Company transferred from held-for-investment to held-for-sale certain performing and nonperforming loans. Transfers of loans from held-for-investment to held-for-sale are infrequent and occur at fair value less costs to sell, with any charge-off to allowance for credit losses. Gains are recognized on a settlement-date basis and are determined by the difference between the net sales proceeds and the carrying value of the loans, including any net deferred fees or costs. Net loans held-for-investment are deemed impaired when it is probable, based on current information, that the Company will not collect all amounts due in accordance with the contractual terms of the loan agreement. The Company has defined the population of impaired loans to be all non-accrual loans held-for-investment with an outstanding balance of $500,000 or greater and all loans restructured in troubled debt restructurings (“TDRs”). Loan held-for-investment are individually assessed to determine that the loan’s carrying value is not in excess of the expected future cash flows, discounted at the loan's original effective interest rate, or the fair value of the underlying collateral (less estimated costs to sell) if the loan is collateral dependent. Impairments, if any, are recognized through a charge to the allowance for credit losses on loans for the amount that the loan’s carrying value exceeds the discounted cash flow analysis or estimated fair value of collateral (less estimated costs to sell) if the loan is collateral dependent. Such amounts are charged-off when considered appropriate. Allowance for Credit Losses on Loans Under ASU 2016-13 the Company determines the allowance for credit losses on loans based upon a consideration of its historical portfolio loss experience, current borrower-specific risk characteristics, current conditions, forecasts of future economic conditions, reversion period, prepayments, and qualitative adjustments. The allowance is measured on a collective (loan segment) basis when similar risk characteristics exist. Loans that do not share common risk characteristics are evaluated on an individual basis and are excluded from the collective evaluation. Accrued interest on loans is excluded from the calculation of the allowance for credit losses due to the Company's non-accrual policy which results in the reversal of uncollectible accrued interest on non-accrual loans against interest income in a timely manner. Accrued interest receivable on loans held-for-investment totaled $11.7 million and $9.4 million, respectively, at December 31, 2022 and 2021 and is reported in accrued interest receivable on the consolidated balance sheets Allowance for Collectively Evaluated Loans Held-for-Investment . In estimating the quantitative component of the allowance on a collective basis, the Company uses a risk rating migration model which calculates an expected life of loan loss percentage for each loan by generating probability of default and loss given default metrics. These metrics are multiplied by the exposure at default, taking into consideration prepayments, to calculate the quantitative component of the allowance. The metrics are based on the migration of loans from performing to loss by credit risk rating or delinquency categories using historical life-of-loan analysis periods for each loan portfolio pool, and the severity of loss, based on the aggregate net lifetime losses incurred using the Company's own historical loss experience and comparable peer data loss history. The model's expected losses based on loss history are adjusted for qualitative adjustments to address risks that may not be adequately represented in the risk rating migration model. Among other things, these adjustments include and account for differences in: (i) changes in lending policies and procedures; (ii) changes in local, regional, national, and international economic and business conditions and developments that affect the collectability of our portfolio, including the condition of various market segments; (iii) changes in the experience, ability and depth of lending management and other relevant staff; (iv) changes in the quality of our loan review system; (v) the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and (vi) the effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in our existing portfolio. The Company utilizes a two-year reasonable and supportable forecast period after which estimated losses revert to historical loss experience immediately for the remaining life of the loan. In establishing its estimate of expected credit losses, the Company utilizes five externally-sourced forward-looking economic scenarios developed by Moody's Analytics (“Moody's”). Management utilizes five different Moody's scenarios so as to incorporate uncertainties related to the economic environment. These scenarios, which range from more benign to more severe economic outlooks, include a ‘most likely outcome’ (the “Baseline” scenario) and four less likely scenarios referred to as the “Upside” and “Downside” scenarios. Each scenario is assigned a weighting with a majority of the weighting placed on the Baseline scenario and lower weights placed on both the Upside and Downside scenarios. The weighting assigned by management is based on the economic outlook and available information at the reporting date. The model projects economic variables under each scenario based on detailed statistical analyses. The Company has identified and selected key variables that most closely correlated to its historical credit performance, which include: Gross domestic product, unemployment, and three collateral indices: the Commercial Property Price Index, the Commercial Property Price Apartment Index and the Case-Shiller Home Price Index. Allowance for Individually Evaluated Loans. The Company measures specific reserves for individual loans that do not share common risk characteristics with other loans, consisting of all TDRs and non-accrual loans with an outstanding balance of $500,000 or greater. Loans individually evaluated for impairment are assessed to determine that the loan’s carrying value is not in excess of the estimated fair value of the collateral less cost to sell, if the loan is collateral-dependent, or the present value of the expected future cash flows, if the loan is not collateral-dependent. Management performs an evaluation of each impaired loan and generally obtains updated appraisals as part of the evaluation. In addition, management adjusts estimated fair values down to appropriately consider recent market conditions, our willingness to accept a lower sales price to effect a quick sale, and costs to dispose of any supporting collateral. Determining the estimated fair value of underlying collateral (and related costs to sell) can be difficult in illiquid real estate markets and is subject to significant assumptions and estimates. Management employs an independent third-party management firm that specializes in appraisal preparation and review to ascertain the reasonableness of updated appraisals. Projecting the expected cash flows under troubled debt restructurings which are not collateral-dependent is inherently subjective and requires, among other things, an evaluation of the borrower’s current and projected financial condition. Individually impaired loans that have no impairment losses are not considered for collective allowances described above. The Company elected to exclude accrued interest on loans from the amortized cost of loans held for investment. The accrued interest is reported in accrued interest receivable on the consolidated balance shee t and totaled $11.7 million and $9.4 million, respectively, at December 31, 2022 and 2021. PCD Loans The Company adopted CECL using the prospective transition approach for PCD loans that were previously classified as PCI loans and accounted for under Accounting Standards Codification (“ASC”) Subtopic 310-30, “Loans and Debt Securities Acquired with Deteriorated Credit Quality.” In accordance with the standard, management did not reassess whether PCI loans met the criteria of PCD loans as of the date of adoption. On January 1, 2021, the amortized cost basis of the PCD assets was adjusted to reflect the addition of the $6.8 million of the allowance for credit losses. The remaining noncredit discount (based on the adjusted amortized cost basis) will be accreted into interest income at the effective interest rate as of January 1, 2021. Upon adoption of CECL, the Company elected to maintain pools of loans that were previously accounted for under ASC Subtopic 310-30 and will continue to account for these pools as a unit of account. Loans are only removed from existing pools if they are written off, paid off, or sold. Upon adoption of CECL, the allowance for credit losses was determined for each pool and added to the pool's carrying amount to establish a new amortized cost basis. The difference between the unpaid principal balance of the pool and the new amortized cost basis is the noncredit premium or discount which will be amortized into interest income over the remaining life of the pool. Changes to the allowance for credit losses after adoption are recorded through provision expense. The Company also maintains a reserve for estimated losses on off-balance sheet credit risks related to loan commitments and stand-by letters of credit. The reserve for off-balance sheet exposures is determined using the CECL reserve factor in the related funded loan segment, adjusted for an average historical funding rate. The allowance for credit losses for off-balance sheet credit exposures is recorded in other liabilities on the consolidated balance sheets and the corresponding provision is included in other non-interest expense. While management uses available information to estimate credit losses on loans, future additions may be necessary based on changes in conditions, including changes in economic conditions and forecasts, particularly in Richmond and Kings counties in New York, and Hunterdon, Mercer, Union and Middlesex counties in New Jersey and to a lesser extent eastern Pennsylvania. Accordingly, as with most financial institutions in the market area, the ultimate collectability of a substantial portion of the Company’s loan portfolio is susceptible to changes in conditions in the Company’s marketplace. In addition, future changes in laws and regulations could make it more difficult for the Company to collect all contractual amounts due on its loans and mortgage-backed securities. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses. Such agencies may require the Company to recognize additions to the allowance based on their judgments about information available to them at the time of their examination. TDRs are loans where terms have been modified because of deterioration in the financial condition of the borrower. Modifications could include extension of the repayment terms of the loan, reduced interest rates, or forgiveness of accrued interest and/or principal. Once an obligation has been restructured because of such credit problems, it continues to be considered restructured until paid in full or, if the obligation yields a market rate (a rate equal to the rate the Company was willing to accept at the time of the restructuring for a new loan with comparable risk), until the year subsequent to the year in which the restructuring takes place, provided the borrower has performed under the modified terms for a consecutive six-month period. The Company records an impairment charge equal to the difference between the present value of estimated future cash flows under the restructured terms discounted at the original loan’s effective interest rate, or the underlying collateral value, less estimated costs to sell, if the loan is collateral dependent. Changes in present values attributable to the passage of time are recorded as a component of the provision for loan losses. The Company introduced a short-term modification program in March 2020 that provided temporary payment relief to those borrowers directly impacted by COVID-19. The program allowed for a deferral of payments typically for 90 days, which could be extended for an additional 90 days, for a maximum of 180 days on a cumulative basis, with modifications in the form of payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment. In accordance with regulatory guidance under the Coronavirus Aid, Relief and Economic Security Act of 2020 (the “CARES Act”), the Consolidated Appropriations Act, and other regulatory guidance, these loan deferrals were not considered TDRs and not reported as past due or non-accrual during the deferral period. At December 31, 2022 and 2021, there were no material deferrals related to the CARES Act. A loan is considered past due when it is not paid in accordance with its contractual terms. The accrual of income on loans, including impaired loans held-for-investment, and other loans in the process of foreclosure, is generally discontinued when a loan becomes 90 days or more delinquent, or sooner when certain factors indicate that the ultimate collection of principal and interest is in doubt. Loans on which the accrual of income has been discontinued are designated as non-accrual loans. All previously accrued interest is reversed against interest income, and income is recognized subsequently only in the period that cash is received, provided no principal payments are due and the remaining principal balance outstanding is deemed collectible. A non-accrual loan is not returned to accrual status until both principal and interest payments are brought current and factors indicating doubtful collection no longer exist, including performance by the borrower under the loan terms for a consecutive six-month period.
Federal Home Loan Bank ("FHLB") Stock	Federal Home Loan Bank (“FHLB”) Stock The Bank, as a member of the FHLB of New York (“FHLBNY”), is required to hold shares of capital stock in the FHLB as a condition to both becoming a member and engaging in certain transactions with the FHLB. The minimum investment requirement is determined by a “membership” investment component and an “activity-based” investment component. The membership investment component is the greater of 0.125% of the Bank’s mortgage-related assets, as defined by the FHLB, or $1,000. The activity-based investment component is equal to 4.5% of the Bank’s outstanding advances with the FHLB. The activity-based investment component also considers other transactions, including assets originated for or sold to the FHLB, and delivery commitments issued by the FHLB. The Company currently does not enter into these other types of transactions with the FHLB. On at least a quarterly basis, we perform our other-than-temporary impairment analysis of FHLB stock, we evaluate, among other things, (i) its earnings performance, including the significance of any decline in net assets of the FHLB as compared to the regulatory capital amount of the FHLB, (ii) the commitment by the FHLB to continue dividend payments, and (iii) the liquidity position of the FHLB. We did not consider our investment in FHLB stock to be other-than-temporarily impaired at December 31, 2022 and 2021.
Operating Leases	Operating LeasesDuring the normal course of business, the Company enters into agreements, and at inception it determines if a particular agreement is a lease. The Company's operating lease agreements relate primarily to its corporate offices and bank branch offices. The agreements are recorded as operating lease right-of-use assets and operating lease liabilities on the consolidated balance sheets. Operating lease right of use assets and operating lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term, and represent the right to use an underlying asset for the lease term and the obligation to make lease payments arising from the lease. As the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate in determining the present value of lease payments. The Company's lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the term of the lease.
Premises and Equipment, Net	Premises and Equipment, Net Premises and equipment, including leasehold improvements, are carried at cost, less accumulated depreciation and amortization. Depreciation and amortization of premises and equipment, including capital leases, are computed on a straight-line basis over the estimated useful lives of the related assets. The estimated useful lives of significant classes of assets are generally as follows: buildings - forty years; furniture and equipment - five
Bank Owned Life Insurance	Bank-Owned Life Insurance The Company has purchased bank-owned life insurance contracts to help fund its obligations for certain employee benefit costs. The Company’s investment in such insurance contracts has been reported in the consolidated balance sheets at their cash surrender values. Changes in cash surrender values and death benefit proceeds received in excess of the related cash surrender values are recorded as non-interest income.
Goodwill	Goodwill Intangible assets resulting from acquisitions under the purchase method of accounting consist of goodwill and other intangible assets. Goodwill is not amortized and is subject to an annual assessment for impairment. The goodwill impairment analysis was generally a two-step test. However, on January 1, 2020, we adopted ASU 2017-04, “Simplifying the Test for Goodwill Impairment” which simplifies how an entity is required to test goodwill for impairment. The guidance removed step two of the goodwill impairment test, which had required a hypothetical purchase price allocation. The ASU does not change the optional qualitative assessment which allows companies to assess qualitative factors to determine whether it is more likely than not that the carrying amount of a reporting unit exceeds its fair value, commonly referred to as the qualitative assessment or step 0. Goodwill is allocated to Northfield’s reporting unit at the date goodwill is actually recorded. As of December 31, 2022, the carrying value of goodwill totaled $41.0 million. The Company qualitatively assessed the current economic environment, including macroeconomic conditions, industry and market conditions and overall financial performance of the Company, among others. After consideration of the results of the annual 2022 impairment test and the results for the year ended December 31, 2022, the Company determined that it was more-likely-than-not that the fair value of its reporting unit was above its book value as of December 31, 2022, which did not indicate impairment for our reporting unit, nor was our reporting unit at risk. The Company will test goodwill for impairment between annual test dates if an event occurs or circumstances change that would indicate the fair value of the reporting unit is below its carrying amount. No events have occurred and no circumstances have changed since the annual impairment test date that would indicate the fair value of the reporting unit is below its carrying amount.
Income Taxes	Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply in the year in which those temporary differences are expected to be recovered or settled. When applicable, deferred tax assets are reduced by a valuation allowance for any portions determined not likely to be realized. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Income tax benefits are recognized and measured based upon a two-step model: 1) a tax position must be more-likely-than-not to be sustained based solely on its technical merits in order to be recognized, and 2) the benefit is measured as the largest dollar amount of that position that is more-likely-than-not to be sustained upon settlement. The difference between the benefit recognized and the tax benefit claimed on a tax return is referred to as an unrecognized tax benefit. The Company records income tax-related interest and penalties, if applicable, within income tax expense.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future undiscounted (and without interest) net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less estimated costs to sell.
Securities Sold Under Agreements to Repurchase and Other Borrowings	Securities Sold Under Agreements to Repurchase and Other Borrowings The Company enters into sales of securities under agreements to repurchase (Repurchase Agreements) and collateral pledge agreements (Pledge Agreements) with selected dealers and banks. Such agreements are accounted for as secured financing transactions since the Company maintains effective control over the transferred or pledged securities and the transfer meets the other accounting and recognition criteria as required by the transfer and servicing topic of the FASB Accounting Standards. Obligations under these agreements are reflected as a liability in the consolidated balance sheets. Securities underlying the agreements are maintained at selected dealers and banks as collateral for each transaction executed and may be sold or pledged by the counterparty. Collateral underlying Repurchase Agreements that permit the counterparty to sell or pledge the underlying collateral is disclosed on the consolidated balance sheets as “encumbered.” The Company retains the right under all Repurchase Agreements and Pledge Agreements to substitute acceptable collateral throughout the terms of the agreement.
Comprehensive Income (Loss)	Comprehensive Income (Loss) Comprehensive income (loss) includes net income and the change in unrealized holding gains and losses on debt securities available-for-sale, change in actuarial gains and losses on other post-retirement benefits, and change in service cost on other postretirement benefits, net of taxes. Comprehensive income (loss) and its components is presented in the consolidated statements of comprehensive income.
Benefits	Benefits The Company sponsors a defined postretirement benefit plan that provides for medical and life insurance coverage to a limited number of retirees, as well as life insurance to all qualifying employees of the Company. The estimated cost of postretirement benefits earned is accrued during an individual’s estimated service period to the Company. The Company recognizes in its balance sheet the over-funded or under-funded status of a defined benefit postretirement plan measured as the difference between the fair value of plan assets and the benefit obligation at the end of our calendar year. The actuarial gains and losses and the prior service costs and credits that arise during the period are recognized as a component of other comprehensive income (loss), net of tax. Funds borrowed by the Employee Stock Ownership Plan (the “ESOP”) from the Company to purchase the Company’s common stock are being repaid from the Bank’s contributions over a period of up to 30 years. The Company’s common stock not yet allocated to participants is recorded as a reduction of stockholders’ equity at cost. The Company records compensation expense related to the ESOP at an amount equal to the shares committed to be released by the ESOP multiplied by the average fair value of our common stock during the reporting period. The Company recognizes the grant-date fair value of stock based awards issued to participants' as compensation cost in the consolidated statements of comprehensive income. The fair value of common stock awards is based on the closing price of our common stock as reported on the NASDAQ Stock Market on the grant date. The expense related to stock options is based on the estimated fair value of the options at the date of the grant using the Black-Scholes pricing model. The awards are fixed in nature and compensation cost related to stock based awards is recognized on a straight-line basis over the requisite service periods. The Company accounts for forfeitures as they occur.
Segment Reporting	Segment Reporting As a community-focused financial institution, substantially all of the Company’s operations involve the delivery of loan and deposit products to customers. Management makes operating decisions and assesses performance based on an ongoing review of these community banking operations, which constitute the Company’s only operating segment for financial reporting purposes.
Net Income per Common Share	Net Income per Common Share Net income per common share-basic is computed by dividing the net income available to common stockholders by the weighted average number of common shares outstanding, excluding unallocated ESOP shares and unearned common stock award shares. The weighted average common shares outstanding includes the average number of shares of common stock outstanding, including shares allocated or committed to be released ESOP shares. Net income per common share-diluted is computed using the same method as basic earnings per share, but reflects the potential dilution that could occur if stock options and unvested shares of restricted stock were exercised and converted into common stock.
Other Real Estate Owned	Other Real Estate Owned Assets acquired through loan foreclosure, or deed-in-lieu of, are held for sale and are initially recorded at estimated fair value, less estimated selling costs, when acquired, thus establishing a new cost basis. Costs after acquisition are generally expensed. If the estimated fair value of the asset subsequently declines, a write-down is recorded through other non-interest expense.
Advertising Costs	Advertising CostsAdvertising costs are expensed in the period they are incurred.
Derivatives	DerivativesThe Company records all derivatives on the Consolidated Balance Sheets at fair value. The Company has interest rate derivatives resulting from a service provided to certain qualified borrowers in a loan related transaction and, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. As such, all changes in fair value of the Company’s interest rate derivatives are recognized directly in earnings. The fair value of the Company's derivatives is determined using discounted cash flow analysis using observable market-based inputs, which are considered Level 2 inputs.
Fair Value Measurement	Fair Value Measurement The following tables present the assets reported on the consolidated balance sheets at their estimated fair value as of December 31, 2022 and 2021, by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification ("ASC"). Financial assets and liabilities are classified in their entirety based on the level of input that is significant to the fair value measurement. 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 the Company’s own assumptions that market participants would use in pricing the assets or liabilities.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The FASB ASC Topic for Financial Instruments requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The following methods and assumptions were used to estimate the fair value of other financial assets and financial liabilities not already discussed above: (a) Cash and Cash Equivalents Cash and cash equivalents are short-term in nature with original maturities of three months or less; the carrying amount approximates fair value. Certificates of deposit having original terms of six-months or less; the carrying value generally approximates fair value. Certificates of deposit with an original maturity of six months or greater; the fair value is derived from discounted cash flows. (b) Debt Securities (Held-to-Maturity) The estimated fair values for substantially all of our securities are obtained from an independent, nationally recognized pricing service. The independent pricing service utilizes market prices of same or similar securities whenever such prices are available. Prices involving distressed sellers are not utilized in determining fair value. Where necessary, the independent third-party pricing service estimates fair value using models employing techniques such as discounted cash flow analysis. The assumptions used in these models typically include assumptions for interest rates, credit losses, and prepayments, utilizing market observable data where available. (c) Investments in Equity Securities at Net Asset Value Per Share The Company uses net asset value as a practical expedient to record its investment in a private SBA Loan Fund since the shares in the fund are not publicly traded, do not have a readily determinable fair value, and the net asset value per share is calculated in a manner consistent with the measurement principles of an investment company. (d) FHLBNY Stock The fair value for FHLBNY stock is its carrying value, since this is the amount for which it could be redeemed and there is no active market for this stock. (e) Loans (Held-for-Investment) Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as originated and purchased, and further segregated by residential mortgage, construction, land, multifamily, commercial and consumer. Each loan category is further segmented into amortizing and non-amortizing and fixed and adjustable rate interest terms and by performing and non-performing categories. The fair value of loans is estimated using a discounted cash flow analysis. The discount rates used to determine fair value use interest rate spreads that reflect factors such as liquidity, credit, and non-performance risk of the loans. (f) Loans (Held-for-Sale) Held-for-sale loans are carried at the lower of aggregate cost or estimated fair value, less costs to sell, and therefore fair value is equal to carrying value. (g) Deposits The fair value of deposits with no stated maturity, such as interest and non-interest-bearing demand deposits, savings, NOW and money market accounts, is equal to the amount payable on demand. The fair value of certificates of deposit 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. (h) Commitments to Extend Credit and Standby Letters of Credit The fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair value of off-balance-sheet commitments is insignificant and therefore not included in the following table. (i) Borrowings The fair value of borrowed funds is estimated by discounting future cash flows based on rates currently available for debt with similar terms and remaining maturity. (j) Advance Payments by Borrowers for Taxes and Insurance Advance payments by borrowers for taxes and insurance have no stated maturity; the fair value is equal to the amount currently payable. (k) Derivatives The fair value of the Company's derivatives is determined using discounted cash flow analysis using observable market-based inputs, which are considered Level 2 inputs.

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Schedule of Business Acquisitions, by Acquisition	The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition for Victory (in thousands): At July 1, 2020 Fair Value Total Purchase Price $ 41,173 Assets acquired: Cash and cash equivalents $ 72,875 Debt securities available-for-sale 126,931 Loans 180,431 Accrued interest receivable 1,415 Bank-owned life insurance 5,714 Premises and equipment 7,789 Other assets 5,010 Total assets acquired 400,165 Liabilities assumed: Deposits 354,592 Other liabilities 7,001 Total liabilities assumed 361,593 Net assets acquired $ 38,572 Goodwill recorded in the merger $ 2,601
Schedule of Credit Impaired Loans Acquired in Acquisition	The following is a summary of the credit impaired loans acquired in the Victory acquisition as of the closing date (in thousands): July 1, 2020 Contractually required principal and interest $ 7,809 Contractual cash flows not expected to be collected (non-accretable discount) 3,315 Expected cash flows to be collected at acquisition 4,494 Interest component of expected cash flows (accretable yield) (599) Fair value of acquired loans $ 3,895

Debt Securities Available-for_2

Debt Securities Available-for-Sale (Tables)	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Comparative Summary Of Mortgage-Backed Securities And Other Securities Available-for-Sale	The following is a comparative summary of mortgage-backed securities and other debt securities available-for-sale at December 31, 2022 and 2021 (in thousands): December 31, 2022 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 76,150 $ — $ (4,074) $ 72,076 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 472,963 1 (40,346) 432,618 Real estate mortgage investment conduits ("REMICs"): GSE 280,870 — (16,146) 264,724 753,833 1 (56,492) 697,342 Other debt securities: Municipal bonds 21 — — 21 Corporate bonds 189,603 2 (6,871) 182,734 189,624 2 (6,871) 182,755 Total debt securities available-for-sale $ 1,019,607 $ 3 $ (67,437) $ 952,173 December 31, 2021 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 2,344 $ — $ (54) $ 2,290 Mortgage-backed securities: Pass-through certificates: GSE 579,035 5,233 (2,862) 581,406 REMICs: GSE 390,755 2,398 (1,443) 391,710 969,790 7,631 (4,305) 973,116 Other debt securities: Municipal bonds 71 1 — 72 Corporate bonds 233,311 192 (744) 232,759 233,382 193 (744) 232,831 Total debt securities available-for-sale $ 1,205,516 $ 7,824 $ (5,103) $ 1,208,237
Summary Of Expected Maturity Distribution Of Debt Securities Available-for-Sale, Other Than Mortgage-Backed Securities	The following is a summary of the expected maturity distribution of debt securities available-for-sale other than mortgage-backed securities at December 31, 2022 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 154,157 $ 149,006 Due after one year through five years 110,467 104,807 Due after five years through ten years 1,150 1,018 $ 265,774 $ 254,831
Gross Unrealized Losses On Mortgage-Backed Securities	Gross unrealized losses on mortgage-backed securities and other debt securities available-for-sale, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2022 and 2021, were as follows (in thousands): December 31, 2022 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value U.S. Government agency securities $ (3,942) $ 71,058 $ (132) $ 1,018 $ (4,074) $ 72,076 Mortgage-backed securities: Pass-through certificates: GSE (8,112) 142,605 (32,234) 289,890 (40,346) 432,495 REMICs: GSE (8,303) 180,612 (7,843) 84,112 (16,146) 264,724 Other debt securities: Corporate bonds (842) 35,778 (6,029) 129,174 (6,871) 164,952 Total $ (21,199) $ 430,053 $ (46,238) $ 504,194 $ (67,437) $ 934,247 December 31, 2021 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value U.S. Government agency securities $ — $ — $ (54) $ 2,290 $ (54) $ 2,290 Mortgage-backed securities: Pass-through certificates: GSE (2,543) 417,291 (318) 14,625 (2,861) 431,916 REMICs: GSE (1,350) 125,725 (94) 4,413 (1,444) 130,138 Other debt securities: Corporate bonds (744) 146,853 — — (744) 146,853 Total $ (4,637) $ 689,869 $ (466) $ 21,328 $ (5,103) $ 711,197 Gross unrealized losses on mortgage-backed securities held-to-maturity, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2022 were as follows (in thousands): December 31, 2022 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value Mortgage-backed securities: Pass-through certificates: GSE $ (461) $ 7,433 $ — $ — $ (461) $ 7,433 Total $ (461) $ 7,433 $ — $ — $ (461) $ 7,433

Debt Securities Held-to-Matur_2

Debt Securities Held-to-Maturity (Tables)	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Summary Of Mortgage-Backed Securities Held-to-Maturity	The following is a summary of mortgage-backed securities held-to-maturity at December 31, 2022 and 2021 (in thousands): December 31, 2022 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 10,760 $ 90 $ (461) $ 10,389 Total securities held-to-maturity $ 10,760 $ 90 $ (461) $ 10,389 December 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 5,283 $ 192 $ — $ 5,475 Total securities held-to-maturity $ 5,283 $ 192 $ — $ 5,475
Gross Unrealized Losses On Mortgage-Backed Securities	Gross unrealized losses on mortgage-backed securities and other debt securities available-for-sale, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2022 and 2021, were as follows (in thousands): December 31, 2022 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value U.S. Government agency securities $ (3,942) $ 71,058 $ (132) $ 1,018 $ (4,074) $ 72,076 Mortgage-backed securities: Pass-through certificates: GSE (8,112) 142,605 (32,234) 289,890 (40,346) 432,495 REMICs: GSE (8,303) 180,612 (7,843) 84,112 (16,146) 264,724 Other debt securities: Corporate bonds (842) 35,778 (6,029) 129,174 (6,871) 164,952 Total $ (21,199) $ 430,053 $ (46,238) $ 504,194 $ (67,437) $ 934,247 December 31, 2021 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value U.S. Government agency securities $ — $ — $ (54) $ 2,290 $ (54) $ 2,290 Mortgage-backed securities: Pass-through certificates: GSE (2,543) 417,291 (318) 14,625 (2,861) 431,916 REMICs: GSE (1,350) 125,725 (94) 4,413 (1,444) 130,138 Other debt securities: Corporate bonds (744) 146,853 — — (744) 146,853 Total $ (4,637) $ 689,869 $ (466) $ 21,328 $ (5,103) $ 711,197 Gross unrealized losses on mortgage-backed securities held-to-maturity, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2022 were as follows (in thousands): December 31, 2022 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value Mortgage-backed securities: Pass-through certificates: GSE $ (461) $ 7,433 $ — $ — $ (461) $ 7,433 Total $ (461) $ 7,433 $ — $ — $ (461) $ 7,433

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2022
Receivables [Abstract]
Net Loans Held-For-Investment	The following table summarizes the Company's loans held-for-investment, net, (in thousands): December 31, 2022 2021 Real estate loans: Multifamily $ 2,824,579 $ 2,518,065 Commercial mortgage 899,249 808,597 One-to-four family residential mortgage 173,946 183,665 Home equity and lines of credit 152,555 109,956 Construction and land 24,932 27,495 Total real estate loans 4,075,261 3,647,778 Commercial and industrial loans (1) 154,700 141,005 Other loans 2,230 2,015 Total commercial and industrial and other loans 156,930 143,020 Loans held-for-investment, net (excluding PCD) 4,232,191 3,790,798 PCD 11,502 15,819 Total loans held-for-investment, net 4,243,693 3,806,617 Allowance for credit losses (42,617) (38,973) Net loans held-for-investment $ 4,201,076 $ 3,767,644 (1) Included in commercial and industrial loans at December 31, 2022 and 2021 are PPP loans totaling $5.1 million and $40.5 million, respectively.
Investment Of Originated Loans Held-For-Investment, Net Of Deferred Fees And Costs, By Loan Type And Credit Quality Indicator	The following table presents the Company’s loans held-for-investment, excluding PCD loans, by loan class, credit risk ratings and year of origination, at December 31, 2022 (in thousands): December 31, 2022 2022 2021 2020 2019 2018 Prior Revolving Loans Total Real Estate: Multifamily Pass $ 632,613 $ 676,370 $ 500,069 $ 255,374 $ 204,810 $ 545,335 $ 521 $ 2,815,092 Substandard — — — — 3,525 5,962 — 9,487 Total multifamily 632,613 676,370 500,069 255,374 208,335 551,297 521 2,824,579 Commercial Pass 213,621 147,419 68,215 90,644 72,512 275,606 1,664 869,681 Special mention — — — — — 4,852 — 4,852 Substandard 2,889 10,574 — — — 11,253 — 24,716 Total commercial 216,510 157,993 68,215 90,644 72,512 291,711 1,664 899,249 One-to-four family residential Pass 26,432 12,340 8,623 10,057 7,227 105,787 1,006 171,472 Special mention — — — — — 1,716 — 1,716 Substandard — — — — — 758 — 758 Total one-to-four family residential 26,432 12,340 8,623 10,057 7,227 108,261 1,006 173,946 Home equity and lines of credit Pass 36,513 16,053 8,198 5,948 4,484 11,315 69,539 152,050 Special mention — — — — — 70 — 70 Substandard — — — 92 48 295 — 435 Total home equity and lines of credit 36,513 16,053 8,198 6,040 4,532 11,680 69,539 152,555 Construction and land Pass 8,121 1,145 6,335 1,276 1,427 3,905 653 22,862 Substandard — — — — 2,070 — — 2,070 Total construction and land 8,121 1,145 6,335 1,276 3,497 3,905 653 24,932 Total real estate loans 920,189 863,901 591,440 363,391 296,103 966,854 73,383 4,075,261 Commercial and industrial Pass 16,941 14,805 7,754 3,754 1,460 8,172 98,969 151,855 Special mention — — 48 — — 124 214 386 Substandard 291 482 96 50 200 217 1,123 2,459 Total commercial and industrial 17,232 15,287 7,898 3,804 1,660 8,513 100,306 154,700 Other Pass 2,010 — 114 5 6 21 74 2,230 Total other 2,010 — 114 5 6 21 74 2,230 Total loans held-for-investment, net $ 939,431 $ 879,188 $ 599,452 $ 367,200 $ 297,769 $ 975,388 $ 173,763 $ 4,232,191 The following table presents the Company’s loans held-for-investment, excluding PCD loans, by loan class, credit risk ratings and year of origination, at December 31, 2021 (in thousands): December 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Total Real Estate: Multifamily Pass $ 723,029 $ 525,078 $ 322,067 $ 238,692 $ 231,647 $ 461,834 $ 184 $ 2,502,531 Special mention — — — — — 425 — 425 Substandard — — 1,724 5,401 — 7,984 — 15,109 Total multifamily 723,029 525,078 323,791 244,093 231,647 470,243 184 2,518,065 Commercial Pass 153,803 72,718 97,228 99,165 65,750 274,195 2,589 765,448 Special mention — — 505 — 1,095 8,559 — 10,159 Substandard 10,881 — 7,866 — 2,854 11,389 — 32,990 Total commercial 164,684 72,718 105,599 99,165 69,699 294,143 2,589 808,597 One-to-four family residential Pass 12,095 9,040 11,244 13,299 10,232 120,693 1,004 177,607 Special mention — — 467 — — 2,336 — 2,803 Substandard — — 517 — — 2,738 — 3,255 Total one-to-four family residential 12,095 9,040 12,228 13,299 10,232 125,767 1,004 183,665 Home equity and lines of credit Pass 18,449 12,244 7,347 6,031 2,592 11,162 51,494 109,319 Special mention — — — — — 103 — 103 Substandard — — 96 50 — 388 — 534 Total home equity and lines of credit 18,449 12,244 7,443 6,081 2,592 11,653 51,494 109,956 Construction and land Pass 9,883 5,755 2,039 4,062 1,809 3,467 480 27,495 Total construction and land 9,883 5,755 2,039 4,062 1,809 3,467 480 27,495 Total real estate loans 928,140 624,835 451,100 366,700 315,979 905,273 55,751 3,647,778 Commercial and industrial Pass 45,426 10,087 4,378 2,316 640 9,298 61,728 133,873 Special mention — — 166 — 132 224 50 572 Substandard — 361 154 595 — 726 4,724 6,560 Total commercial and industrial 45,426 10,448 4,698 2,911 772 10,248 66,502 141,005 Other Pass 1,715 156 19 26 — 49 50 2,015 Total other 1,715 156 19 26 — 49 50 2,015 Total loans held-for-investment, net $ 975,281 $ 635,439 $ 455,817 $ 369,637 $ 316,751 $ 915,570 $ 122,303 $ 3,790,798
Estimated Expected Future Cash Flows Of Each PCI Loan Pool	The following tables set forth the detail, and delinquency status, of non-performing loans (non-accrual loans and loans past due 90 days or more and still accruing), net of deferred fees and costs, at December 31, 2022, and December 31, 2021, excluding PCD loans (in thousands): December 31, 2022 Total Non-Performing Loans Non-Accruing Loans Current 30-89 Days Past Due 90 Days or More Past Due Total 90 Days or More Past Due and Accruing Total Non-Performing Loans Loans held-for-investment: Real estate loans: Multifamily Substandard $ 1,923 $ — $ 1,362 $ 3,285 $ 233 $ 3,518 Total multifamily 1,923 — 1,362 3,285 233 3,518 Commercial Substandard 2,806 431 1,947 5,184 8 5,192 Total commercial 2,806 431 1,947 5,184 8 5,192 One-to-four family residential Substandard — — 118 118 155 273 Total one-to-four family residential — — 118 118 155 273 Home equity and lines of credit Substandard 186 — 76 262 — 262 Total home equity and lines of credit 186 — 76 262 — 262 Total real estate 4,915 431 3,503 8,849 396 9,245 Commercial and industrial loans Substandard — 26 938 964 24 988 Total commercial and industrial loans — 26 938 964 24 988 Other loans Pass — — — — 5 5 Total other — — — — 5 5 Total non-performing loans $ 4,915 $ 457 $ 4,441 $ 9,813 $ 425 $ 10,238 December 31, 2021 Total Non-Performing Loans Non-Accruing Loans Current 30-89 Days Past Due 90 Days or More Past Due Total 90 Days or More Past Due and Accruing Total Non-Performing Loans Loans held-for-investment: Real estate loans: Multifamily Substandard $ — $ 280 $ 1,602 $ 1,882 $ — $ 1,882 Total multifamily — 280 1,602 1,882 — 1,882 Commercial Special mention — — 280 280 — 280 Substandard 2,944 — 1,893 4,837 147 4,984 Total commercial 2,944 — 2,173 5,117 147 5,264 One-to-four family residential Substandard — — 314 314 165 479 Total one-to-four family residential — — 314 314 165 479 Home equity and lines of credit Substandard — — 281 281 — 281 Total home equity and lines of credit — — 281 281 — 281 Total real estate 2,944 280 4,370 7,594 312 7,906 Commercial and industrial loans Pass — — — — 72 72 Substandard 28 — — 28 — 28 Total commercial and industrial loans 28 — — 28 72 100 Total non-performing loans $ 2,972 $ 280 $ 4,370 $ 7,622 $ 384 $ 8,006
Detail and Delinquency Status of Originated Loans Held-For-Investment, Net Of Deferred Fees and Costs, By Performing And Non-Performing Loans	The following tables set forth the detail and delinquency status of loans held-for-investment, excluding PCD loans, net of deferred fees and costs, at December 31, 2022 and December 31, 2021 (in thousands): December 31, 2022 Past Due Loans 30-89 Days Past Due 90 Days or More Past Due 90 Days or More Past Due and Accruing Total Past Due Current Total Loans Receivable, net Loans held-for-investment: Real estate loans: Multifamily Pass $ 189 $ — $ — $ 189 $ 2,814,903 $ 2,815,092 Substandard — 1,362 233 1,595 7,892 9,487 Total multifamily 189 1,362 233 1,784 2,822,795 2,824,579 Commercial Pass 726 — — 726 868,955 869,681 Special mention — — — — 4,852 4,852 Substandard 605 1,947 8 2,560 22,156 24,716 Total commercial 1,331 1,947 8 3,286 895,963 899,249 One-to-four family residential Pass 603 — — 603 170,869 171,472 Special mention 69 — — 69 1,647 1,716 Substandard — 118 155 273 485 758 Total one-to-four family residential 672 118 155 945 173,001 173,946 Home equity and lines of credit Pass 657 — — 657 151,393 152,050 Special mention — — — — 70 70 Substandard 173 76 — 249 186 435 Total home equity and lines of credit 830 76 — 906 151,649 152,555 Construction and land Pass — — — — 22,862 22,862 Substandard — — — — 2,070 2,070 Total construction and land — — — — 24,932 24,932 Total real estate 3,022 3,503 396 6,921 4,068,340 4,075,261 Commercial and industrial Pass 573 — — 573 151,282 151,855 Special mention — — — — 386 386 Substandard 498 938 24 1,460 999 2,459 Total commercial and industrial 1,071 938 24 2,033 152,667 154,700 Other loans Pass 5 — 5 10 2,220 2,230 Total other loans 5 — 5 10 2,220 2,230 Total loans held-for-investment $ 4,098 $ 4,441 $ 425 $ 8,964 $ 4,223,227 $ 4,232,191 December 31, 2021 Past Due Loans 30-89 Days Past Due 90 Days or More Past Due 90 Days or More Past Due and Accruing Total Past Due Current Total Loans Receivable, net Loans held-for-investment: Real estate loans: Multifamily Pass $ — $ — $ — $ — $ 2,502,531 $ 2,502,531 Special mention — — — — 425 425 Substandard 280 1,602 — 1,882 13,227 15,109 Total multifamily 280 1,602 — 1,882 2,516,183 2,518,065 Commercial Pass 77 — — 77 765,371 765,448 Special mention 67 280 — 347 9,812 10,159 Substandard — 1,893 147 2,040 30,950 32,990 Total commercial 144 2,173 147 2,464 806,133 808,597 One-to-four family residential Pass 206 — — 206 177,401 177,607 Special mention 387 — — 387 2,416 2,803 Substandard — 314 165 479 2,776 3,255 Total one-to-four family residential 593 314 165 1,072 182,593 183,665 Home equity and lines of credit Pass 316 — — 316 109,003 109,319 Special mention — — — — 103 103 Substandard 96 281 — 377 157 534 Total home equity and lines of credit 412 281 — 693 109,263 109,956 Construction and land Pass — — — — 27,495 27,495 Total construction and land — — — — 27,495 27,495 Total real estate 1,429 4,370 312 6,111 3,641,667 3,647,778 Commercial and industrial Pass 2 — 72 74 133,799 133,873 Special mention — — — — 572 572 Substandard — — — — 6,560 6,560 Total commercial and industrial 2 — 72 74 140,931 141,005 Other loans Pass 15 — — 15 2,000 2,015 Total other loans 15 — — 15 2,000 2,015 Total loans held-for-investment $ 1,446 $ 4,370 $ 384 $ 6,200 $ 3,784,598 $ 3,790,798
Financing Receivable, Nonaccrual	The following tables summarize information on non-accrual loans, excluding PCD loans, at December 31, 2022 and December 31, 2021 (in thousands): December 31, 2022 Recorded Investment Unpaid Principal Balance With No Related Allowance Real estate loans: Multifamily $ 3,285 $ 3,294 $ 2,050 Commercial 5,184 5,639 3,069 One-to-four family residential 118 118 — Home equity and lines of credit 262 512 — Commercial and industrial 964 1,288 67 Total non-accrual loans $ 9,813 $ 10,851 $ 5,186 December 31, 2021 Recorded Investment Unpaid Principal Balance With No Related Allowance Real estate loans: Multifamily $ 1,882 $ 1,891 $ 512 Commercial 5,117 5,627 3,729 One-to-four family residential 314 346 — Home equity and lines of credit 281 530 — Commercial and industrial 28 349 — Total non-accrual loans $ 7,622 $ 8,743 $ 4,241
Summary of Impaired Loans	The following table summarizes interest income on non-accrual loans, excluding PCD loans, during the years ended December 31, 2022 and 2021 (in thousands). Year Ended December 31, 2022 2021 Real estate loans: Multifamily $ 154 $ 70 Commercial 124 85 One-to-four family residential 13 10 Home equity and lines of credit 21 2 Commercial and industrial 31 8 Total interest income on non-accrual loans $ 343 $ 175
Troubled Debt Restructurings on Financing Receivables	The following table summarizes loans that were modified in a TDR during the year ended December 31, 2021: Year Ended December 31, 2021 Number of Relationships Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (1) (Dollars in thousands) Troubled Debt Restructurings Commercial and industrial 2 $ 96 $ 96 Total Troubled Debt Restructurings 2 $ 96 $ 96 (1) Amounts are at time of modification.

Allowance for Credit Losses (_2

Allowance for Credit Losses (“ACL”) on Loans (Tables)	12 Months Ended
	Dec. 31, 2022
Credit Loss [Abstract]
Schedule of Allowance for Credit Losses for Off-Balance Sheet credit Exposures	The table below summarizes the allowance for credit losses for off-balance sheet credit exposures as of, and for the years ended December 31, 2022 and 2021 (in thousands): Year Ended December 31, 2022 2021 Balance at beginning of year $ 1,852 $ 808 Impact of CECL adoption — 737 Balance at beginning of year 1,852 1,545 (Benefit)/provision for credit losses (1,061) 307 Balance at end of year $ 791 $ 1,852 A summary of changes in the allowance for credit losses for the years ended December 31, 2022, 2021, and 2020 follows (in thousands): December 31, 2022 2021 2020 Balance at beginning of year $ 38,973 $ 37,607 $ 28,707 Impact of CECL adoption — 10,353 — Balance at January 1 38,973 47,960 28,707 Provision/(benefit) for credit losses 4,482 (6,184) 12,742 Recoveries 487 278 465 Charge-offs (1,325) (3,081) (4,307) Balance at end of year $ 42,617 $ 38,973 $ 37,607
Activity In Allowance For Loan Losses	The following tables set forth activity in our allowance for credit losses by loan type, as of, and for the years ended, December 31, 2022, and December 31, 2021. The following tables also detail the amount of loans receivable held-for-investment, net of deferred loan fees and costs, that are evaluated, individually and collectively, for impairment, and the related portion of allowance for credit losses that is allocated to each loan portfolio segment (in thousands): December 31, 2022 Real Estate Commercial (1) One-to-Four Family Home Equity and Lines of Credit Construction and Land Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Allowance for credit losses: Beginning balance $ 26,785 $ 3,545 $ 560 $ 169 $ 3,173 $ 9 $ 34,241 $ 4,732 $ 38,973 Charge-offs (278) — — — (446) — (724) (601) (1,325) Recoveries 102 32 19 — 144 12 309 178 487 Provisions (credit) 2,876 359 287 155 1,243 (12) 4,908 (426) 4,482 Ending balance $ 29,485 $ 3,936 $ 866 $ 324 $ 4,114 $ 9 $ 38,734 $ 3,883 $ 42,617 Ending balance: individually evaluated for impairment $ 18 $ — $ 2 $ — $ 18 $ — $ 38 $ — $ 38 Ending balance: collectively evaluated for impairment $ 29,467 $ 3,936 $ 864 $ 324 $ 4,096 $ 9 $ 38,696 $ — $ 38,696 Ending balance: PCD loans evaluated for impairment (2) $ — $ — $ — $ — $ — $ — $ — $ 3,883 $ 3,883 Loans, net: Ending balance $ 3,723,828 $ 173,946 $ 152,555 $ 24,932 $ 154,700 $ 2,230 $ 4,232,191 $ 11,502 $ 4,243,693 Ending balance: individually evaluated for impairment $ 8,152 $ 666 $ 27 $ — $ 94 $ — $ 8,939 $ — $ 8,939 Ending balance: collectively evaluated for impairment $ 3,715,676 $ 173,280 $ 152,528 $ 24,932 $ 149,463 $ 2,230 $ 4,218,109 $ — $ 4,218,109 Ending balance: PCD loans evaluated for impairment (2) $ — $ — $ — $ — $ — $ — $ — $ 11,502 $ 11,502 Paycheck Protection Program (“PPP”) loans not evaluated for impairment (3) $ — $ — $ — $ — $ 5,143 $ — $ 5,143 $ — $ 5,143 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. (2) Upon adoption of CECL, the Company elected to maintain pools of PCD loans that were previously accounted for under ASC 310-30, and will continue to evaluate PCD loans under this guidance. (3) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for credit losses. December 31, 2021 Real Estate Commercial (1) One-to-Four Family Home Equity and Lines of Credit Construction and Land Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Allowance for credit losses: Beginning balance $ 33,005 $ 207 $ 260 $ 1,214 $ 1,842 $ 198 $ 36,726 $ 881 $ 37,607 Impact of CECL adoption (1,949) 5,233 419 (921) 947 (188) 3,541 6,812 10,353 Balance at January 1, 2021 31,056 5,440 679 293 2,789 10 40,267 7,693 47,960 Charge-offs — (21) — — (646) (3) (670) (2,411) (3,081) Recoveries 60 29 26 — 39 5 159 119 278 Provisions (credits) (4,331) (1,903) (145) (124) 991 (3) (5,515) (669) (6,184) Ending balance $ 26,785 $ 3,545 $ 560 $ 169 $ 3,173 $ 9 $ 34,241 $ 4,732 $ 38,973 Ending balance: individually evaluated for impairment $ 25 $ 2 $ 2 $ — $ 1 $ — $ 30 $ — $ 30 Ending balance: collectively evaluated for impairment $ 26,760 $ 3,543 $ 558 $ 169 $ 3,172 $ 9 $ 34,211 $ — $ 34,211 Ending balance: PCD loans evaluated for impairment (2) $ — $ — $ — $ — $ — $ — $ — $ 4,732 $ 4,732 Loans, net: Ending balance $ 3,326,662 $ 183,665 $ 109,956 $ 27,495 $ 141,005 $ 2,015 $ 3,790,798 $ 15,819 $ 3,806,617 Ending balance: individually evaluated for impairment $ 8,352 $ 1,562 $ 38 $ — $ 34 $ — $ 9,986 $ — $ 9,986 Ending balance: collectively evaluated for impairment $ 3,318,310 $ 182,103 $ 109,918 $ 27,495 $ 100,454 $ 2,015 $ 3,740,295 $ — $ 3,740,295 Ending balance: PCD loans evaluated for impairment (2) $ — $ — $ — $ — $ — $ — $ — $ 15,819 $ 15,819 PPP loans not evaluated for impairment (3) $ — $ — $ — $ — $ 40,517 $ — $ 40,517 $ — $ 40,517 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. (2) Upon adoption of CECL, the Company elected to maintain pools of PCD loans that were previously accounted for under ASC 310-30, and will continue to evaluate PCD loans under this guidance. (3) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for credit losses.

Premises and Equipment, Net (Ta

Premises and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Premises And Equipment Less Accumulated Depreciation And Amortization	At December 31, 2022 and 2021, premises and equipment, less accumulated depreciation and amortization, consists of the following (in thousands): December 31, 2022 2021 At cost: Land $ 5,156 $ 5,156 Buildings and improvements 13,189 13,150 Capital leases 2,600 2,600 Furniture, fixtures, and equipment 32,783 31,269 Leasehold improvements 29,147 28,148 82,875 80,323 Accumulated depreciation and amortization (58,031) (54,386) Premises and equipment, net $ 24,844 $ 25,937

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2022
Deposits [Abstract]
Schedule of Deposit Account Balances	Deposit account balances are summarized as follows (dollars in thousands): As of December 31, 2022 2021 Amount Weighted Average Rate Amount Weighted Average Rate Transaction: Negotiable orders of withdrawal and interest-bearing checking $ 1,132,290 0.51 % $ 1,112,292 0.06 % Non-interest bearing checking 852,660 — % 898,490 — % Total transaction 1,984,950 0.29 % 2,010,782 0.03 % Savings: Money market 508,067 0.47 % 609,430 0.07 % Savings 917,180 0.14 % 1,166,761 0.10 % Total savings 1,425,247 0.26 % 1,776,191 0.09 % Certificates of deposit: Under $100,000 525,944 3.06 % 154,320 0.59 % $100,000 or more 214,078 1.17 % 228,041 0.75 % Total certificates of deposit 740,022 2.51 % 382,361 0.69 % Total deposits $ 4,150,219 0.68 % $ 4,169,334 0.12 %
Schedule of Maturities Of Certificates Of Deposit	Scheduled maturities of certificates of deposit are summarized as follows (in thousands): December 31, 2022 2023 $ 685,323 2024 28,653 2025 14,663 2026 3,968 2027 7,415 Total $ 740,022
Schedule of Interest Expense On Deposits	Interest expense on deposits is summarized as follows (in thousands): December 31, 2022 2021 2020 Transaction $ 1,759 $ 805 $ 2,372 Savings and money market 1,851 2,226 7,869 Certificates of deposit 6,679 3,176 14,989 $ 10,289 $ 6,207 $ 25,230

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Summary of Borrowings	Borrowings consisted of FHLB advances, securities sold under agreements to repurchase (repurchase agreements), and floating rate advances and other interest-bearing liabilities (which include cash collateral pledged by derivative counterparties to offset interest-rate exposure) and are summarized as follows (in thousands): December 31, 2022 2021 Repurchase agreements $ 25,000 $ 50,000 Other borrowings: FHLB advances (1) 547,000 365,000 Floating rate advances and other interest-bearing liabilities 11,859 6,755 $ 583,859 $ 421,755 (1)
Contractual Maturities Repurchase Agreements And FHLB Advances	At December 31, 2022 and 2021, FHLB advances and repurchase agreements had contractual maturities as follows (in thousands): December 31, 2022 FHLB Repurchase Advances Agreements 2023 $ 264,500 $ — 2024 25,000 25,000 2025 112,500 — 2026 20,000 — Thereafter 125,000 — $ 547,000 $ 25,000 December 31, 2021 FHLB Repurchase Advances Agreements 2022 $ 95,000 $ 25,000 2023 87,500 — 2024 25,000 25,000 2025 112,500 — Thereafter 45,000 — $ 365,000 $ 50,000 Further information regarding FHLB advances and repurchase agreements is summarized as follows (in thousands): December 31, 2022 2021 2022 2021 FHLB Advances Repurchase Agreements Average balance during year $ 351,725 $ 434,422 $ 34,795 $ 60,068 Maximum outstanding at any month end $ 547,000 $ 510,000 $ 50,000 $ 75,000 Weighted average interest rate at end of year 3.14 % 2.10 % 2.42 % 2.36 % Weighted average interest rate during year 1.83 % 2.08 % 8.21 % 2.36 %

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense (Benefit)	Income tax expense (benefit) consists of the following (in thousands): December 31, 2022 2021 2020 Federal tax expense (benefit): Current $ 15,784 $ 15,313 $ 11,270 Deferred (233) 3,107 (2,391) 15,551 18,420 8,879 State and local tax expense (benefit): Current 8,581 8,001 4,825 Deferred (392) 52 (667) 8,189 8,053 4,158 Total income tax expense $ 23,740 $ 26,473 $ 13,037
Schedule of Reconciliation Between The Amount Of Reported Total Income Tax Expense And The Amount Computed By Multiplying The Applicable Statutory Income Tax Rate	Reconciliation between the amount of reported total income tax expense and the amount computed by multiplying the applicable statutory income tax rate for the years ended December 31, 2022, 2021, and 2020, is as follows (dollars in thousands): December 31, 2022 2021 2020 Tax expense at statutory rate $ 17,820 $ 20,397 $ 10,505 Applicable statutory federal income tax rate 21 % 21 % 21 % Increase (decrease) in taxes resulting from: State tax, net of federal income tax 6,469 6,362 3,285 Bank owned life insurance (717) (862) (793) ESOP fair market value adjustment 69 102 42 Incentive stock options — 6 18 Merger related costs — — 147 Other, net 99 468 (167) Income tax expense $ 23,740 $ 26,473 $ 13,037
Schedule of Tax Effects Of Temporary Differences That Give Rise To Significant Portions Of The Deferred Tax Assets And Deferred Tax Liabilities	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2022 and 2021, are as follows (in thousands): December 31, 2022 2021 Deferred tax assets: Allowance for credit losses $ 12,202 $ 11,057 Capitalized leases Deferred compensation 2,958 3,145 Accrued salaries 1,610 1,338 Postretirement benefits 313 354 Equity awards 2,091 2,051 Straight-line leases adjustment 1,608 1,713 Asset retirement obligation 47 68 Reserve for accrued interest receivable 681 620 Reserve for loan commitments 231 537 Employee Stock Ownership Plan 633 645 Other 323 317 Depreciation 3,552 3,229 Fair value adjustments of acquired loans 1,057 1,440 Fair value adjustments of pension benefit obligations 130 139 Unrealized losses on securities 18,875 — Total gross deferred tax assets 46,311 26,653 Deferred tax liabilities: Unrealized gains on securities – AFS — 761 Unrealized actuarial gains on post retirement benefits 65 15 Fair value adjustments of acquired securities 280 580 Fair value adjustments of deposit liabilities 32 28 Deferred loan fees 2,553 2,010 Other 20 23 Total gross deferred tax liabilities 2,950 3,417 Net deferred tax asset $ 43,361 $ 23,236
Schedule of Unrecognized Tax Benefits Roll Forward	A reconciliation of the Company’s uncertain tax positions are as follows (in thousands): December 31, 2022 2021 2020 Beginning balance $ 141 $ 157 $ 190 Settlements based on tax positions related to prior years (31) (125) (33) (Reductions) additions based on tax positions related to prior years (23) 109 — Ending balance $ 87 $ 141 $ 157

Retirement Benefits (Tables)

Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2022
Retirement Benefits [Abstract]
Funded Status and Components of Postretirement Benefit Costs	The following tables set forth the funded status and components of postretirement benefit costs at December 31 measurement dates (in thousands): 2022 2021 2020 Accumulated postretirement benefit obligation beginning of year $ 979 $ 1,133 $ 1,241 Interest cost 26 22 33 Actuarial gain (109) (77) (44) Benefits paid (81) (99) (97) Accumulated postretirement benefit obligation end of year 815 979 1,133 Accrued liability (included in accrued expenses and other liabilities) $ 815 $ 979 $ 1,133
Amounts Recognized in Accumulated Other Comprehensive Income (Loss)	The following table sets forth the amounts recognized in accumulated other comprehensive income (loss) (in thousands): December 31, 2022 2021 Net (gain) loss $ (98) $ 87 Prior service credit (133) (171) Loss recognized in accumulated other comprehensive income (loss) $ (231) $ (84)
Components of Net Periodic Postretirement Benefit Cost	The following table sets forth the components of net periodic postretirement benefit costs for the years ended December 31, 2022, 2021, and 2020 (in thousands): December 31, 2022 2021 2020 Interest cost 26 22 33 Amortization of prior service credits (19) (20) (20) Amortization of unrecognized loss — — 1 Net postretirement benefit cost included in compensation and employee benefits $ 7 $ 2 $ 14
Assumptions Used in Accounting for the Plan	The Company’s discount rate and rate of compensation increase used in accounting for the plan are as follows: 2022 2021 2020 Assumptions used to determine benefit obligation at period end: Discount rate 5.02 % 2.50 % 2.00 % Rate of increase in compensation (1) N/A N/A N/A Assumptions used to determine net periodic benefit cost for the year: Discount rate 2.50 % 2.00 % 2.75 % Rate of increase in compensation (1) N/A N/A N/A
Schedule of Defined Benefit Plans Disclosures	A one percentage-point change in assumed healthcare cost trends would have the following effects (in thousands): One Percentage Point Increase One Percentage Point Decrease 2022 2021 2022 2021 Aggregate of service and interest components of net periodic cost (benefit) $ 3 $ 2 $ (2) $ (2) Effect on accumulated postretirement benefit obligation 80 78 (70) (68)

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Schedule of Stock Options Outstanding	The following table is a summary of the Company’s stock options as of December 31, 2022, and changes therein during the year then ended: Number of Stock Options Weighted Average Grant Date Fair Value Weighted Average Exercise Price Weighted Average Contractual Life (years) Outstanding- December 31, 2020 2,214,193 $ 4.01 $ 13.94 3.96 Forfeited (50,169) 13.62 Exercised (394,045) 3.96 13.90 — Outstanding- December 31, 2021 1,769,979 4.02 13.95 2.95 Exercised (187,153) 3.92 13.23 — Outstanding- December 31, 2022 1,582,826 4.03 14.04 2.01 Exercisable- December 31, 2022 1,582,826 $ 4.03 $ 14.04 2.01
Schedule of Status of the Company's Restricted Share Awards	The following is a summary of the status of the Company’s restricted shares as of December 31, 2022, and changes therein during the year then ended: Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2020 104,010 $ 15.91 Granted 176,930 12.36 Vested (42,470) 16.06 Forfeited (15,626) 13.80 Non-vested at December 31, 2021 222,844 13.21 Granted 181,908 15.78 Vested (62,836) 12.87 Forfeited (20,415) 14.34 Non-vested at December 31, 2022 321,501 $ 14.66

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Schedule of Commitment And Contingent Liabilities Not Reflected In Consolidated Financial Statements	At December 31, 2022 and 2021, the following commitment and contingent liabilities existed that are not reflected in the accompanying consolidated financial statements (in thousands): December 31, 2022 2021 Commitments to extend credit $ 37,473 $ 159,403 Unused lines of credit 288,380 245,860 Standby letters of credit 4,432 3,266

Regulatory Requirements (Tables

Regulatory Requirements (Tables)	12 Months Ended
	Dec. 31, 2022
Regulatory Requirements [Abstract]
Schedule of Bank's Regulatory Capital Amounts And Ratios Compared To Regulatory Requirements	The following is a summary of Northfield Bank’s regulatory capital amounts and ratios compared to the regulatory requirements as of December 31, 2022 and 2021, for classification as a well-capitalized institution and minimum capital (dollars in thousands): For Well For Capital Capitalized Adequacy Under Prompt Corrective Actual Purposes Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2022: CBLR $ 710,719 12.68 % $ 504,284 9.00 % $ 504,284 9.00 % As of December 31, 2021: CBLR $ 659,522 12.24 % $ 457,872 8.50 % $ 457,872 8.50 % The following is a summary of the Company's regulatory capital amounts and ratios compared to the regulatory requirements as of December 31, 2022 and 2021, for classification as well-capitalized and minimum capital (dollars in thousands). For Well For Capital Capitalized Adequacy Under Prompt Corrective Actual Purposes Action Provisions Amount Ratio Amount Ratio Amount Ratio As of December 31, 2022: CBLR $ 708,430 12.65 % $ 503,977 9.00 % $ 503,977 9.00 % As of December 31, 2021: CBLR $ 696,368 12.93 % $ 457,751 8.50 % $ 457,751 8.50 %

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Schedule of Significant Fair Value of Assets and Liabilities Measured on Recurring and Non Recurring Basis	Fair Value Measurements at December 31, 2022 Using: Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Significant Unobservable (in thousands) Measured on a recurring basis: Assets: Investment securities: Debt securities available-for-sale: U.S. Government agency securities $ 72,076 $ — $ 72,076 $ — Mortgage-backed securities: Pass-through certificates: GSE 432,618 — 432,618 — REMICs: GSE 264,724 — 264,724 — 697,342 — 697,342 — Other debt securities: Municipal bonds 21 — 21 — Corporate bonds 182,734 — 182,734 — 182,755 — 182,755 — Total debt securities available-for-sale 952,173 — 952,173 — Trading securities 10,751 10,751 — — Equity securities (1) 361 361 — — Total $ 963,285 $ 11,112 $ 952,173 $ — Measured on a non-recurring basis: Assets: Loans individually evaluated for impairment: Real estate loans: Commercial real estate $ 2,631 $ — $ — $ 2,631 Multifamily 1,923 — — 1,923 Home equity and lines of credit 24 — — 24 Total individually evaluated real estate loans 4,578 — — 4,578 Commercial and industrial loans 62 — — 62 Total $ 4,640 $ — $ — $ 4,640 (1) Excludes investment measured at net asset value of $10.1 million at December 31, 2022, which has not been classified in the fair value hierarchy. Fair Value Measurements at December 31, 2021 Using: Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Significant Unobservable (in thousands) Measured on a recurring basis: Assets: Investment securities: Debt securities available-for-sale: U.S Government agency securities $ 2,290 $ — $ 2,290 $ — Mortgage-backed securities Pass-through certificate GSE 581,406 — 581,406 — REMICs: GSE 391,710 $ — 391,710 — 973,116 — 973,116 — Other debt securities: Municipal bonds 72 — 72 — Corporate bonds 232,759 — 232,759 — 232,831 — 232,831 — Total debt securities available-for sale 1,208,237 — 1,208,237 — Trading securities 13,461 13,461 — — Equity securities (1) 328 328 — — Total $ 1,222,026 $ 13,789 $ 1,208,237 $ — Measured on a non-recurring basis: Assets: Loans individually evaluated for impairment: Real estate loans: Commercial real estate $ 3,599 $ — $ — $ 3,599 One-to-four family residential mortgage 169 — — 169 Home equity and lines of credit 27 — — 27 Total impaired real estate loans 3,795 — — 3,795 Commercial and industrial loans 12 — — 12 Other real estate owned 100 — — 100 Total $ 3,907 $ — $ — $ 3,907 (1) Excludes investment measured at net asset value of $5.0 million at December 31, 2021, which has not been classified in the fair value hierarchy.
Schedule of Level 3 Assets Measured at Fair Value on a Non-Recurring Basis	The following table presents qualitative information for Level 3 assets measured at fair value on a non-recurring basis at December 31, 2022 (dollars in thousands): Fair Value Valuation Methodology Unobservable Inputs Range of Inputs (in thousands) Individually evaluated loans $ 4,640 Appraisals Discount for costs to sell 7.0% Discount for quick sale 10.0% Discounted cash flows Interest rates 4.88% - 7.50% Fair Value Valuation Methodology Unobservable Inputs Range of Inputs (in thousands) Individually evaluated loans $ 3,807 Appraisals Discount for costs to sell 7.0% Discount for quick sale 10.0% Discounted cash flows Interest rates 4.88% - 6.25% Other real estate owned 100 Appraisals Discount for costs to sell 7.0%
Schedule of Estimated Fair Values of Significant Financial Instruments	The estimated fair values of the Company’s significant financial instruments at December 31, 2022 and 2021, are presented in the following tables (in thousands): December 31, 2022 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 45,799 $ 45,799 $ — $ — $ 45,799 Trading securities 10,751 10,751 — — 10,751 Debt securities available-for-sale 952,173 — 952,173 — 952,173 Debt securities held-to-maturity 10,760 — 10,389 — 10,389 Equity securities (1) 361 361 — — 361 FHLBNY stock, at cost 30,382 — 30,382 — 30,382 Net loans held-for-investment 4,201,076 — — 4,016,849 4,016,849 Derivative assets 5,321 — 5,321 — 5,321 Financial liabilities: Deposits $ 4,150,219 $ — $ 4,148,938 $ — $ 4,148,938 FHLB advances and other borrowings (including securities sold under agreements to repurchase) 583,859 — 564,588 — 564,588 Subordinated debentures, net of issuance costs 60,996 — 54,393 — 54,393 Advance payments by borrowers for taxes and insurance 25,995 — 25,995 — 25,995 Derivative liabilities 5,321 — 5,321 — 5,321 (1) Excludes investment measured at net asset value of $10.1 million at December 31, 2022, which has not been classified in the fair value hierarchy. December 31, 2021 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 91,068 $ 91,068 $ — $ — $ 91,068 Trading securities 13,461 13,461 — — 13,461 Debt securities available-for-sale 1,208,237 — 1,208,237 — 1,208,237 Debt securities held-to-maturity 5,283 — 5,475 — 5,475 Equity securities (1) 328 328 — — 328 FHLBNY stock, at cost 22,336 — 22,336 — 22,336 Net loans held-for-investment 3,767,644 — — 3,904,026 3,904,026 Derivative assets 923 — 923 — 923 Financial liabilities: Deposits $ 4,169,334 $ — $ 4,172,125 $ — $ 4,172,125 FHLB advances and other borrowings (including securities sold under agreements to repurchase) 421,755 — 426,235 — 426,235 Advance payments by borrowers for taxes and insurance 24,909 — 24,909 — 24,909 Derivative liabilities 925 — 925 — 925 (1) Excludes investment measured at net asset value of $5.0 million at December 31, 2021, which has not been classified in the fair value hierarchy.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2022
Earnings Per Share [Abstract]
Schedule of Earnings Per Share Calculations and Reconciliation	The following is a summary of the Company’s earnings per share calculations and reconciliation of basic to diluted earnings per share for the periods indicated (in thousands, except share and per share data): December 31, 2022 2021 2020 Net income available to common stockholders $ 61,119 $ 70,654 $ 36,988 Weighted average shares outstanding-basic 46,234,122 48,416,495 48,721,504 Effect of non-vested restricted stock and stock options outstanding 203,997 337,768 64,459 Weighted average shares outstanding-diluted 46,438,119 48,754,263 48,785,963 Earnings per share-basic $ 1.32 $ 1.46 $ 0.76 Earnings per share-diluted $ 1.32 $ 1.45 $ 0.76 Anti-dilutive shares 756,765 323,466 1,972,136

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Schedule of Non-Interest Income	The following table summarizes non-interest income for the periods indicated (in thousands): December 31, 2022 2021 2020 Fees and service charges for customer services: Service charges $ 3,380 $ 3,075 $ 2,356 ATM and card interchange fees 1,920 1,893 1,326 Investment fees 405 426 285 Total fees and service charges for customer services 5,705 5,394 3,967 Income on bank-owned life insurance (1) 3,414 4,103 3,774 Gains on available-for-sale debt securities, net (1) 279 1,495 327 (Losses)/gains on trading securities, net (1) (2,206) 1,703 1,601 Gains on sale of loans (1) 453 1,401 665 Other (1) 338 357 1,138 Total non-interest income $ 7,983 $ 14,453 $ 11,472 (1) Not within the scope of Topic 606

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2022
Leases [Abstract]
Schedule of Lease, Cost	Supplemental lease information at or for the years ended December 31, 2022 and 2021 is as follows (dollars in thousands): At or for the Year Ended December 31, 2022 December 31, 2021 December 31, 2020 Operating lease cost $ 6,006 $ 5,797 $ 6,160 Variable lease cost 3,621 4,092 3,276 Net lease cost $ 9,627 $ 9,889 $ 9,436 Cash paid for amounts included in measurement of operating lease liabilities $ 6,350 $ 6,538 $ 6,490 Right-of-use assets obtained in exchange for new operating lease liabilities $ 4,983 $ 1,596 $ 3,568 Weighted average remaining lease term (in years) 11.22 years 11.84 years 12.28 years Weighted average discount rate 3.54 % 3.55 % 3.60 %
Schedule of Lessee, Operating Lease, Liability, Maturity	The following table summarizes lease payment obligations for each of the next five years and thereafter in addition to a reconcilement to the Company's current lease liability (dollars in thousands): Year Amount 2023 $ 6,490 2024 6,069 2025 5,729 2026 4,967 2027 4,007 Thereafter 22,557 Total lease payments 49,819 Less: imputed interest (10,029) Present value of lease liabilities $ 39,790

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Liabilities at Fair Value	The table below presents the fair value of derivatives as well as their location on the consolidated balance sheets (in thousands): Fair Value December 31, Balance Sheet Location 2022 2021 Other assets $ 5,321 $ 923 Other liabilities 5,321 925
Schedule of Derivative Assets at Fair Value	The table below presents the fair value of derivatives as well as their location on the consolidated balance sheets (in thousands): Fair Value December 31, Balance Sheet Location 2022 2021 Other assets $ 5,321 $ 923 Other liabilities 5,321 925

Parent-only Financial Informa_2

Parent-only Financial Information (Tables) - Parent Company	12 Months Ended
	Dec. 31, 2022
Schedule of Condensed Balance Sheets	Northfield Bancorp, Inc. Condensed Balance Sheets December 31, 2022 2021 (in thousands) Assets Cash in Northfield Bank $ 39,950 $ 14,411 Investment in Northfield Bank 703,666 703,036 ESOP loan receivable 17,814 19,283 Other assets 1,635 3,412 Total assets $ 763,065 $ 740,142 Liabilities and Stockholders' Equity Subordinated debentures, net of issuance costs $ 60,996 $ — Total liabilities 679 259 Total stockholders' equity 701,390 739,883 Total liabilities and stockholders' equity $ 763,065 $ 740,142
Schedule of Condensed Statements of Comprehensive Income	Northfield Bancorp, Inc. Condensed Statements of Comprehensive Income Years Ended December 31, 2022 2021 2020 (in thousands) Interest on ESOP loan $ 627 $ 677 $ 1,043 Interest income on deposits in other financial institutions 4 18 129 Undistributed earnings of Northfield Bank 62,964 70,956 37,544 Total income 63,595 71,651 38,716 Interest expense on subordinated debt 1,797 — — Other expenses 1,020 831 1,647 Income tax expense (341) 166 81 Total expenses 2,476 997 1,728 Net income $ 61,119 $ 70,654 $ 36,988 Comprehensive income: Net income $ 61,119 $ 70,654 $ 36,988 Other comprehensive (loss) income, net of tax (50,394) (11,097) 8,461 Comprehensive income $ 10,725 $ 59,557 $ 45,449
Schedule of Condensed Statements of Cash Flows	Northfield Bancorp, Inc. Condensed Statements of Cash Flows December 31, 2022 2021 2020 (in thousands) Cash flows from operating activities Net income $ 61,119 $ 70,654 $ 36,988 Adjustments to reconcile net income to net cash used in operating activities: Decrease (increase) in other assets 702 (4,034) (1,008) Amortization of debt issuance costs 112 — — Increase (decrease) in other liabilities 420 12 (1,499) Undistributed earnings of Northfield Bank (62,964) (70,956) (37,544) Net cash used in operating activities (611) (4,324) (3,063) Cash flows from investing activities Cash and cash equivalents acquired in business acquisition — — 5,903 Dividends from Northfield Bank 17,143 69,916 16,174 Net cash provided by investing activities 17,143 69,916 22,077 Cash flows from financing activities Proceeds from issuance of subordinated debt, net of issuance costs 60,884 — — Principal payments on ESOP loan receivable 1,469 1,553 1,061 Purchase of treasury stock (30,881) (53,321) (10,405) Dividends paid (24,127) (24,299) (21,476) Exercise of stock options 1,662 3,409 175 Net cash provided by (used in) financing activities 9,007 (72,658) (30,645) Net increase (decrease) in cash and cash equivalents 25,539 (7,066) (11,631) Cash and cash equivalents at beginning of year 14,411 21,477 33,108 Cash and cash equivalents at end of year $ 39,950 $ 14,411 $ 21,477

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Significant Accounting Policies [Line Items]
Accounting Standards Update [Extensible Enumeration]			Accounting Standards Update 2016-13
Allowance for credit loss	$ 42,617	$ 38,973	$ 37,607	$ 28,707
Unfounded credit commitment	791	1,852	$ 808
Accrued interest receivable associated with debt securities available-for-sale	2,800	2,500
Ending balance: individually evaluated for impairment	8,939	9,986
Financing receivable, accrued interest receivable	$ 11,700	9,400
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable
Threshold of membership investment component, percentage	0.125%
Threshold of membership investment component	$ 1
Activity based investment component as a percentage of outstanding advances	4.50%
Goodwill	$ 41,012	$ 41,012
ESOP repayment period (years)	30 years
Effect of non-vested restricted stock and stock options outstanding (in shares)	203,997	337,768	64,459
Cumulative Effect, Period of Adoption, Adjustment
Schedule Of Significant Accounting Policies [Line Items]
Increase in allowance for credit losses			$ 11,100
Allowance for credit loss		$ 0	10,353	$ 0
Unfounded credit commitment		$ 0	737
PCD loan related reserves			6,800
Non-PCD loan related reserves			$ 4,300
COVID-19
Schedule Of Significant Accounting Policies [Line Items]
Loan modification program, payment deferral period	90 days
Loan modification program, extension for payment deferral period	90 days
Loan modification program, maximum deferral period	180 days
Minimum
Schedule Of Significant Accounting Policies [Line Items]
Ending balance: individually evaluated for impairment	$ 500
Building
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives of significant classes of assets (years)	40 years
Furniture And Equipment | Minimum
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives of significant classes of assets (years)	5 years
Furniture And Equipment | Maximum
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives of significant classes of assets (years)	7 years
Software
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives of significant classes of assets (years)	3 years

Business Combinations - Additio

Business Combinations - Additional Information (Details) $ in Thousands		6 Months Ended	12 Months Ended
	Jul. 01, 2020 USD ($) branch lease_obligation shares	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Total assets				$ 5,601,293	$ 5,430,542
Net loans held-for-investment				4,201,076	3,767,644
Deposits				4,150,219	4,169,334
Operating lease right-of-use assets				34,288	33,943
Operating lease liabilities				$ 39,790	$ 39,851
Victory
Business Acquisition [Line Items]
Total assets	$ 402,800
Net loans held-for-investment	180,400
Deposits	$ 354,600
Number of branches | branch	6
Victory
Business Acquisition [Line Items]
Common stock exchange rate (shares) | shares	2.0463
Merger-related expenses			$ 4,300
Adjustment to the carrying value of goodwill		$ 304
Adjustment to deferred tax assets		$ 304
Number of lease obligations | lease_obligation	5
Operating lease right-of-use assets	$ 2,500
Operating lease liabilities	$ 2,500

Business Combinations - Fair Va

Business Combinations - Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Jul. 01, 2020
Liabilities assumed:
Goodwill recorded in the merger	$ 41,012	$ 41,012
Victory
Business Acquisition [Line Items]
Total Purchase Price			$ 41,173
Assets acquired:
Cash and cash equivalents			72,875
Debt securities available-for-sale			126,931
Loans			180,431
Accrued interest receivable			1,415
Bank-owned life insurance			5,714
Premises and equipment			7,789
Other assets			5,010
Total assets acquired			400,165
Liabilities assumed:
Deposits			354,592
Other liabilities			7,001
Total liabilities assumed			361,593
Net assets acquired			38,572
Goodwill recorded in the merger			$ 2,601

Business Combinations - Summary

Business Combinations - Summary of Credit Impaired Loans Acquired (Details) - Victory $ in Thousands	Jul. 01, 2020 USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required principal and interest	$ 7,809
Contractual cash flows not expected to be collected (non-accretable discount)	3,315
Expected cash flows to be collected at acquisition	4,494
Interest component of expected cash flows (accretable yield)	(599)
Fair value of acquired loans	$ 3,895

Debt Securities Available-for_3

Debt Securities Available-for-Sale - Comparative Summary Of Mortgage-Backed Securities And Other Securities Available-for-Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 1,019,607	$ 1,205,516
Gross unrealized gains	3	7,824
Gross unrealized losses	(67,437)	(5,103)
Estimated fair value	952,173	1,208,237
U.S. Government agency securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	76,150	2,344
Gross unrealized gains	0	0
Gross unrealized losses	(4,074)	(54)
Estimated fair value	72,076	2,290
US Government-Sponsored Enterprises Debt Securities, Pass Through Certificates
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	472,963	579,035
Gross unrealized gains	1	5,233
Gross unrealized losses	(40,346)	(2,862)
Estimated fair value	432,618	581,406
Government-Sponsored Enterprises Debt Securities, Real Estate Mortgage Investments Conduits
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	280,870	390,755
Gross unrealized gains	0	2,398
Gross unrealized losses	(16,146)	(1,443)
Estimated fair value	264,724	391,710
Real estate mortgage investment conduits (REMICs)
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	753,833	969,790
Gross unrealized gains	1	7,631
Gross unrealized losses	(56,492)	(4,305)
Estimated fair value	697,342	973,116
Municipal Bonds, Other Debt Obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	21	71
Gross unrealized gains	0	1
Gross unrealized losses	0	0
Estimated fair value	21	72
Corporate Bond Securities, Other Debt Obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	189,603	233,311
Gross unrealized gains	2	192
Gross unrealized losses	(6,871)	(744)
Estimated fair value	182,734	232,759
Other debt securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	189,624	233,382
Gross unrealized gains	2	193
Gross unrealized losses	(6,871)	(744)
Estimated fair value	$ 182,755	$ 232,831

Debt Securities Available-for_4

Debt Securities Available-for-Sale - Summary Of Expected Maturity Distribution Of Debt Securities Available-For-Sale, Other Than Mortgage-Backed Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Amortized cost
Amortized cost	$ 1,019,607	$ 1,205,516
Estimated fair value
Estimated fair value	952,173	$ 1,208,237
Other Than Mortgage Backed Securities
Amortized cost
Due in one year or less	154,157
Due after one year through five years	110,467
Due after five years through ten years	1,150
Amortized cost	265,774
Estimated fair value
Due in one year or less	149,006
Due after one year through five years	104,807
Due after five years through ten years	1,018
Estimated fair value	$ 254,831

Debt Securities Available-for_5

Debt Securities Available-for-Sale - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 security	Dec. 31, 2022 loan	Dec. 31, 2022 instrument
Schedule of Available-for-sale Securities [Line Items]
Carrying value of securities available-for-sale		$ 522,100		$ 591,700
Gross proceeds on sales of securities	$ 41,479	328,966	$ 23,628
Debt securities, available-for-sale, realized gain	279	1,500	350
Debt securities, available-for-sale, realized loss	0	0	23
Debt securities, trading, realized gain (loss)	$ (2,200)	1,700	$ 1,600
Accrued interest receivable associated with debt securities available-for-sale		$ 2,500		$ 2,800
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable
Continuous Unrealized Loss Position Less Than 12 Months | REMIC | Non-pass through certificates
Schedule of Available-for-sale Securities [Line Items]
Number of debt securities, unrealized loss position less than 12 months | security					87
GSE | REMIC
Schedule of Available-for-sale Securities [Line Items]
Number of debt securities, unrealized loss position less than 12 months | instrument							4
GSE | REMIC | Non-pass through
Schedule of Available-for-sale Securities [Line Items]
Number of debt securities, unrealized loss position less than 12 months | security					47
GSE | Continuous Unrealized Loss Position 12 Months Or Longer | REMIC
Schedule of Available-for-sale Securities [Line Items]
Number of debt securities, unrealized loss position longer than 12 months | security					38
GSE | Continuous Unrealized Loss Position 12 Months Or Longer | REMIC | Pass-through certificates
Schedule of Available-for-sale Securities [Line Items]
Number of debt securities, unrealized loss position longer than 12 months | security					35
Municipal Bonds | REMIC
Schedule of Available-for-sale Securities [Line Items]
Number of debt securities, unrealized loss position longer than 12 months | loan						19
Number of debt securities, unrealized loss position less than 12 months					8		1

Debt Securities Available-for_6

Debt Securities Available-for-Sale - Gross Unrealized Losses On Mortgage-Backed Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses, less than 12 months	$ (21,199)	$ (4,637)
Estimated fair value, less than 12 months	430,053	689,869
Unrealized losses, 12 months or more	(46,238)	(466)
Estimated fair value, 12 months or more	504,194	21,328
Unrealized losses, total	(67,437)	(5,103)
Estimated fair value, total	934,247	711,197
U.S. Government agency securities
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses, less than 12 months	(3,942)	0
Estimated fair value, less than 12 months	71,058	0
Unrealized losses, 12 months or more	(132)	(54)
Estimated fair value, 12 months or more	1,018	2,290
Unrealized losses, total	(4,074)	(54)
Estimated fair value, total	72,076	2,290
Pass-through certificates | GSE
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses, less than 12 months	(8,112)	(2,543)
Estimated fair value, less than 12 months	142,605	417,291
Unrealized losses, 12 months or more	(32,234)	(318)
Estimated fair value, 12 months or more	289,890	14,625
Unrealized losses, total	(40,346)	(2,861)
Estimated fair value, total	432,495	431,916
REMICs | GSE
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses, less than 12 months	(8,303)	(1,350)
Estimated fair value, less than 12 months	180,612	125,725
Unrealized losses, 12 months or more	(7,843)	(94)
Estimated fair value, 12 months or more	84,112	4,413
Unrealized losses, total	(16,146)	(1,444)
Estimated fair value, total	264,724	130,138
Other debt securities | Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses, less than 12 months	(842)	(744)
Estimated fair value, less than 12 months	35,778	146,853
Unrealized losses, 12 months or more	(6,029)	0
Estimated fair value, 12 months or more	129,174	0
Unrealized losses, total	(6,871)	(744)
Estimated fair value, total	$ 164,952	$ 146,853

Debt Securities Held-to-Matur_3

Debt Securities Held-to-Maturity - Summary of Mortgage-Backed Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 10,760	$ 5,283
Gross Unrealized Gains	90	192
Gross Unrealized Losses	(461)	0
Estimated Fair Value	10,389	5,475
Mortgage-Backed Securities, Pass-Through Certificates
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	10,760	5,283
Gross Unrealized Gains	90	192
Gross Unrealized Losses	(461)	0
Estimated Fair Value	$ 10,389	$ 5,475

Debt Securities Held-to-Matur_4

Debt Securities Held-to-Maturity - Additional Information (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) security	Dec. 31, 2021 USD ($) security	Dec. 31, 2020 USD ($)
Schedule of Investments [Abstract]
Held-to-maturity securities sold | $	$ 0	$ 0	$ 0
Held-to-maturity securities pledged to secure borrowings and deposits | $	$ 2,000,000	$ 2,100,000
Held-to-maturity securities unrealized loss position less than twelve months | security	9
Held-to-maturity securities unrealized loss position greater than twelve months | security	0
Held-to-maturity securities unrealized loss position | security		0
Accrued interest receivable associated with held-to-maturity securities | $	$ 39,000	$ 16,000
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable

Debt Securities Held-to-Matur_5

Debt Securities Held-to-Maturity - Held-to-Maturity Securities in a Continuous Unrealized Loss Positions (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Unrealized losses
Less than 12 months	$ (461)
12 months or more	0
Total	(461)
Estimated fair value
Less than 12 months	7,433
12 months or more	0
Total	7,433
Mortgage Backed Securities Pass Through Certificates
Unrealized losses
Less than 12 months	(461)
12 months or more	0
Total	(461)
Estimated fair value
Less than 12 months	7,433
12 months or more	0
Total	$ 7,433

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Trading Securities and Other Trading Assets [Line Items]
Equity securities	$ 10,443	$ 5,342
Money Market Funds
Schedule of Trading Securities and Other Trading Assets [Line Items]
Equity securities, fair value	361	328
SBA Loan Fund
Schedule of Trading Securities and Other Trading Assets [Line Items]
Equity securities without readily determinable fair value	$ 10,100	$ 5,000

Loans - Net Loans Held-for-Inve

Loans - Net Loans Held-for-Investment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Total loans held-for-investment, net	$ 4,243,693	$ 3,806,617
Allowance for credit losses	(42,617)	(38,973)	$ (37,607)	$ (28,707)
Net loans held-for-investment	4,201,076	3,767,644
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Total loans held-for-investment, net	4,232,191	3,790,798
Allowance for credit losses	(38,734)	(34,241)	(36,726)
PCD
Loans and Leases Receivable Disclosure [Line Items]
Total loans held-for-investment, net	11,502	15,819
Allowance for credit losses	(3,883)	(4,732)	(881)
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	4,075,261	3,647,778
Total loans held-for-investment, net	4,075,261	3,647,778
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,824,579	2,518,065
Total loans held-for-investment, net	2,824,579	2,518,065
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Commercial mortgage
Loans and Leases Receivable Disclosure [Line Items]
Loans	899,249	808,597
Total loans held-for-investment, net	899,249	808,597
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | One-to-four family residential mortgage
Loans and Leases Receivable Disclosure [Line Items]
Loans	173,946	183,665
Total loans held-for-investment, net	173,946	183,665
Allowance for credit losses	(3,936)	(3,545)	(207)
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Home equity and lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Loans	152,555	109,956
Total loans held-for-investment, net	152,555	109,956
Allowance for credit losses	(866)	(560)	(260)
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Construction and land
Loans and Leases Receivable Disclosure [Line Items]
Loans	24,932	27,495
Total loans held-for-investment, net	24,932	27,495
Allowance for credit losses	(324)	(169)	(1,214)
Commercial and Industrial and Other Portfolio Segment | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	156,930	143,020
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	154,700	141,005
Total loans held-for-investment, net	154,700	141,005
Allowance for credit losses	(4,114)	(3,173)	(1,842)
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,230	2,015
Total loans held-for-investment, net	2,230	2,015
Allowance for credit losses	(9)	(9)	$ (198)
Paycheck Protection Program | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 5,100	$ 40,500

Loans - Narrative, Net Loans He

Loans - Narrative, Net Loans Held-for-Investment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable held-for-sale, amount	$ 0	$ 0
PCI loans	$ 4,243,693	$ 3,806,617
One-to-four family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit-impaired (PCI) loan percent	9%	16%
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit-impaired (PCI) loan percent	28%	25%
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit-impaired (PCI) loan percent	53%	48%
Home equity loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit-impaired (PCI) loan percent	10%
Construction and land and home equity loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit-impaired (PCI) loan percent		11%
PCD
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	$ 11,502	$ 15,819

Loans - Loans Held-for-Investme

Loans - Loans Held-for-Investment, Excluding PCD Loans, Net of Deferred Fees and Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans held-for-investment, net	$ 4,243,693	$ 3,806,617
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	939,431	975,281
Year Two	879,188	635,439
Year Three	599,452	455,817
Year Four	367,200	369,637
Year Five	297,769	316,751
Prior	975,388	915,570
Revolving Loans	173,763	122,303
Loans held-for-investment, net	4,232,191	3,790,798
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	920,189	928,140
Year Two	863,901	624,835
Year Three	591,440	451,100
Year Four	363,391	366,700
Year Five	296,103	315,979
Prior	966,854	905,273
Revolving Loans	73,383	55,751
Loans held-for-investment, net	4,075,261	3,647,778
Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	632,613	723,029
Year Two	676,370	525,078
Year Three	500,069	323,791
Year Four	255,374	244,093
Year Five	208,335	231,647
Prior	551,297	470,243
Revolving Loans	521	184
Loans held-for-investment, net	2,824,579	2,518,065
Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	632,613	723,029
Year Two	676,370	525,078
Year Three	500,069	322,067
Year Four	255,374	238,692
Year Five	204,810	231,647
Prior	545,335	461,834
Revolving Loans	521	184
Loans held-for-investment, net	2,815,092	2,502,531
Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	1,724
Year Four	0	5,401
Year Five	3,525	0
Prior	5,962	7,984
Revolving Loans	0	0
Loans held-for-investment, net	9,487	15,109
Real estate loans: | Multifamily | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One		0
Year Two		0
Year Three		0
Year Four		0
Year Five		0
Prior		425
Revolving Loans		0
Loans held-for-investment, net		425
Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	216,510	164,684
Year Two	157,993	72,718
Year Three	68,215	105,599
Year Four	90,644	99,165
Year Five	72,512	69,699
Prior	291,711	294,143
Revolving Loans	1,664	2,589
Loans held-for-investment, net	899,249	808,597
Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	213,621	153,803
Year Two	147,419	72,718
Year Three	68,215	97,228
Year Four	90,644	99,165
Year Five	72,512	65,750
Prior	275,606	274,195
Revolving Loans	1,664	2,589
Loans held-for-investment, net	869,681	765,448
Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	2,889	10,881
Year Two	10,574	0
Year Three	0	7,866
Year Four	0	0
Year Five	0	2,854
Prior	11,253	11,389
Revolving Loans	0	0
Loans held-for-investment, net	24,716	32,990
Real estate loans: | Commercial mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	505
Year Four	0	0
Year Five	0	1,095
Prior	4,852	8,559
Revolving Loans	0	0
Loans held-for-investment, net	4,852	10,159
Real estate loans: | One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	26,432	12,095
Year Two	12,340	9,040
Year Three	8,623	12,228
Year Four	10,057	13,299
Year Five	7,227	10,232
Prior	108,261	125,767
Revolving Loans	1,006	1,004
Loans held-for-investment, net	173,946	183,665
Real estate loans: | One-to-four family residential mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	26,432	12,095
Year Two	12,340	9,040
Year Three	8,623	11,244
Year Four	10,057	13,299
Year Five	7,227	10,232
Prior	105,787	120,693
Revolving Loans	1,006	1,004
Loans held-for-investment, net	171,472	177,607
Real estate loans: | One-to-four family residential mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	517
Year Four	0	0
Year Five	0	0
Prior	758	2,738
Revolving Loans	0	0
Loans held-for-investment, net	758	3,255
Real estate loans: | One-to-four family residential mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	467
Year Four	0	0
Year Five	0	0
Prior	1,716	2,336
Revolving Loans	0	0
Loans held-for-investment, net	1,716	2,803
Real estate loans: | Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	36,513	18,449
Year Two	16,053	12,244
Year Three	8,198	7,443
Year Four	6,040	6,081
Year Five	4,532	2,592
Prior	11,680	11,653
Revolving Loans	69,539	51,494
Loans held-for-investment, net	152,555	109,956
Real estate loans: | Home equity and lines of credit | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	36,513	18,449
Year Two	16,053	12,244
Year Three	8,198	7,347
Year Four	5,948	6,031
Year Five	4,484	2,592
Prior	11,315	11,162
Revolving Loans	69,539	51,494
Loans held-for-investment, net	152,050	109,319
Real estate loans: | Home equity and lines of credit | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	96
Year Four	92	50
Year Five	48	0
Prior	295	388
Revolving Loans	0	0
Loans held-for-investment, net	435	534
Real estate loans: | Home equity and lines of credit | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	70	103
Revolving Loans	0	0
Loans held-for-investment, net	70	103
Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	8,121	9,883
Year Two	1,145	5,755
Year Three	6,335	2,039
Year Four	1,276	4,062
Year Five	3,497	1,809
Prior	3,905	3,467
Revolving Loans	653	480
Loans held-for-investment, net	24,932	27,495
Real estate loans: | Construction and land | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	8,121	9,883
Year Two	1,145	5,755
Year Three	6,335	2,039
Year Four	1,276	4,062
Year Five	1,427	1,809
Prior	3,905	3,467
Revolving Loans	653	480
Loans held-for-investment, net	22,862	27,495
Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	0
Year Two	0
Year Three	0
Year Four	0
Year Five	2,070
Prior	0
Revolving Loans	0
Loans held-for-investment, net	2,070
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	17,232	45,426
Year Two	15,287	10,448
Year Three	7,898	4,698
Year Four	3,804	2,911
Year Five	1,660	772
Prior	8,513	10,248
Revolving Loans	100,306	66,502
Loans held-for-investment, net	154,700	141,005
Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	16,941	45,426
Year Two	14,805	10,087
Year Three	7,754	4,378
Year Four	3,754	2,316
Year Five	1,460	640
Prior	8,172	9,298
Revolving Loans	98,969	61,728
Loans held-for-investment, net	151,855	133,873
Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	291	0
Year Two	482	361
Year Three	96	154
Year Four	50	595
Year Five	200	0
Prior	217	726
Revolving Loans	1,123	4,724
Loans held-for-investment, net	2,459	6,560
Commercial and industrial loans | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	0	0
Year Two	0	0
Year Three	48	166
Year Four	0	0
Year Five	0	132
Prior	124	224
Revolving Loans	214	50
Loans held-for-investment, net	386	572
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	2,010	1,715
Year Two	0	156
Year Three	114	19
Year Four	5	26
Year Five	6	0
Prior	21	49
Revolving Loans	74	50
Loans held-for-investment, net	2,230	2,015
Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Losses [Line Items]
Year One	2,010	1,715
Year Two	0	156
Year Three	114	19
Year Four	5	26
Year Five	6	0
Prior	21	49
Revolving Loans	74	50
Loans held-for-investment, net	$ 2,230	$ 2,015

Loans - Narrative, Past Due and

Loans - Narrative, Past Due and Non-Accrual Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Receivables [Abstract]
Non-accrual loans	$ 9,813	$ 7,622
Delinquent status classification term	90 days	90 days
Principal balance of loans on non accrual status	$ 500
Impairment of loans	5,200	$ 4,200
Loans on non accrual status with principal balances below threshold definition of an impaired loan	4,600	3,400
90 days or more past due and accruing	$ 425	$ 384

Loans - Details and Delinquency

Loans - Details and Delinquency Status of Nonperforming Loans (detail, and delinquency status, of non-performing loans (Non-Accrual Loans and Loans Past Due 90 Days or More and Still Accruing) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	$ 4,243,693	$ 3,806,617
Non-Accruing Loans	9,813	7,622
90 Days or More Past Due and Accruing	425	384
Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	3,285	1,882
Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	5,184	5,117
Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	118	314
Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	262	281
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	964	28
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	10,238	8,006
Non-Accruing Loans	9,813	7,622
90 Days or More Past Due and Accruing	425	384
Non-Performing Loans | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	9,245	7,906
Non-Accruing Loans	8,849	7,594
90 Days or More Past Due and Accruing	396	312
Non-Performing Loans | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	3,518	1,882
Non-Accruing Loans	3,285	1,882
90 Days or More Past Due and Accruing	233	0
Non-Performing Loans | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	5,192	5,264
Non-Accruing Loans	5,184	5,117
90 Days or More Past Due and Accruing	8	147
Non-Performing Loans | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	273	479
Non-Accruing Loans	118	314
90 Days or More Past Due and Accruing	155	165
Non-Performing Loans | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	262	281
Non-Accruing Loans	262	281
90 Days or More Past Due and Accruing	0	0
Non-Performing Loans | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	988	100
Non-Accruing Loans	964	28
90 Days or More Past Due and Accruing	24	72
Non-Performing Loans | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	5
Non-Accruing Loans	0
90 Days or More Past Due and Accruing	5
Non-Performing Loans | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	3,518	1,882
Non-Accruing Loans	3,285	1,882
90 Days or More Past Due and Accruing	233	0
Non-Performing Loans | Substandard | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	5,192	4,984
Non-Accruing Loans	5,184	4,837
90 Days or More Past Due and Accruing	8	147
Non-Performing Loans | Substandard | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	273	479
Non-Accruing Loans	118	314
90 Days or More Past Due and Accruing	155	165
Non-Performing Loans | Substandard | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	262	281
Non-Accruing Loans	262	281
90 Days or More Past Due and Accruing	0	0
Non-Performing Loans | Substandard | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	988	28
Non-Accruing Loans	964	28
90 Days or More Past Due and Accruing	24	0
Non-Performing Loans | Pass | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		72
Non-Accruing Loans		0
90 Days or More Past Due and Accruing		72
Non-Performing Loans | Pass | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	5
Non-Accruing Loans	0
90 Days or More Past Due and Accruing	5
Non-Performing Loans | Special mention | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		280
Non-Accruing Loans		280
90 Days or More Past Due and Accruing		0
Non-Performing Loans | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,915	2,972
Non-Performing Loans | Current | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,915	2,944
Non-Performing Loans | Current | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,923	0
Non-Performing Loans | Current | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,806	2,944
Non-Performing Loans | Current | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Non-Performing Loans | Current | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	186	0
Non-Performing Loans | Current | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	28
Non-Performing Loans | Current | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0
Non-Performing Loans | Current | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,923	0
Non-Performing Loans | Current | Substandard | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,806	2,944
Non-Performing Loans | Current | Substandard | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Non-Performing Loans | Current | Substandard | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	186	0
Non-Performing Loans | Current | Substandard | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	28
Non-Performing Loans | Current | Pass | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		0
Non-Performing Loans | Current | Pass | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0
Non-Performing Loans | Current | Special mention | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		0
Non-Performing Loans | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	457	280
Non-Performing Loans | 30-89 Days Past Due | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	431	280
Non-Performing Loans | 30-89 Days Past Due | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	280
Non-Performing Loans | 30-89 Days Past Due | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	431	0
Non-Performing Loans | 30-89 Days Past Due | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Non-Performing Loans | 30-89 Days Past Due | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Non-Performing Loans | 30-89 Days Past Due | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	26	0
Non-Performing Loans | 30-89 Days Past Due | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	280
Non-Performing Loans | 30-89 Days Past Due | Substandard | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	431	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	26	0
Non-Performing Loans | 30-89 Days Past Due | Pass | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		0
Non-Performing Loans | 30-89 Days Past Due | Pass | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0
Non-Performing Loans | 30-89 Days Past Due | Special mention | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		0
Non-Performing Loans | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,441	4,370
Non-Performing Loans | 90 Days or More Past Due | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	3,503	4,370
Non-Performing Loans | 90 Days or More Past Due | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,362	1,602
Non-Performing Loans | 90 Days or More Past Due | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,947	2,173
Non-Performing Loans | 90 Days or More Past Due | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	118	314
Non-Performing Loans | 90 Days or More Past Due | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	76	281
Non-Performing Loans | 90 Days or More Past Due | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	938	0
Non-Performing Loans | 90 Days or More Past Due | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,362	1,602
Non-Performing Loans | 90 Days or More Past Due | Substandard | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,947	1,893
Non-Performing Loans | 90 Days or More Past Due | Substandard | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	118	314
Non-Performing Loans | 90 Days or More Past Due | Substandard | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	76	281
Non-Performing Loans | 90 Days or More Past Due | Substandard | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	938	0
Non-Performing Loans | 90 Days or More Past Due | Pass | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		0
Non-Performing Loans | 90 Days or More Past Due | Pass | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	$ 0
Non-Performing Loans | 90 Days or More Past Due | Special mention | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		$ 280

Loans - Detail and Delinquency

Loans - Detail and Delinquency Status of Loans Held-for-Investment, Excluding PCD Loans, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	$ 4,243,693	$ 3,806,617
90 Days or More Past Due and Accruing	425	384
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,232,191	3,790,798
90 Days or More Past Due and Accruing	425	384
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,075,261	3,647,778
90 Days or More Past Due and Accruing	396	312
Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,824,579	2,518,065
90 Days or More Past Due and Accruing	233	0
Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,815,092	2,502,531
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	9,487	15,109
90 Days or More Past Due and Accruing	233	0
Real estate loans: | Multifamily | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		425
90 Days or More Past Due and Accruing		0
Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	899,249	808,597
90 Days or More Past Due and Accruing	8	147
Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	869,681	765,448
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	24,716	32,990
90 Days or More Past Due and Accruing	8	147
Real estate loans: | Commercial mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,852	10,159
90 Days or More Past Due and Accruing	0	0
Real estate loans: | One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	173,946	183,665
90 Days or More Past Due and Accruing	155	165
Real estate loans: | One-to-four family residential mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	171,472	177,607
90 Days or More Past Due and Accruing	0	0
Real estate loans: | One-to-four family residential mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	758	3,255
90 Days or More Past Due and Accruing	155	165
Real estate loans: | One-to-four family residential mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,716	2,803
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	152,555	109,956
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Home equity and lines of credit | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	152,050	109,319
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Home equity and lines of credit | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	435	534
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Home equity and lines of credit | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	70	103
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	24,932	27,495
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Construction and land | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	22,862	27,495
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,070
90 Days or More Past Due and Accruing	0
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	154,700	141,005
90 Days or More Past Due and Accruing	24	72
Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	151,855	133,873
90 Days or More Past Due and Accruing	0	72
Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,459	6,560
90 Days or More Past Due and Accruing	24	0
Commercial and industrial loans | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	386	572
90 Days or More Past Due and Accruing	0	0
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,230	2,015
90 Days or More Past Due and Accruing	5	0
Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,230	2,015
90 Days or More Past Due and Accruing	5	0
30-89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,098	1,446
30-89 Days Past Due | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	3,022	1,429
30-89 Days Past Due | Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	189	280
30-89 Days Past Due | Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	189	0
30-89 Days Past Due | Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	280
30-89 Days Past Due | Real estate loans: | Multifamily | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		0
30-89 Days Past Due | Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,331	144
30-89 Days Past Due | Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	726	77
30-89 Days Past Due | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	605	0
30-89 Days Past Due | Real estate loans: | Commercial mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	67
30-89 Days Past Due | Real estate loans: | One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	672	593
30-89 Days Past Due | Real estate loans: | One-to-four family residential mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	603	206
30-89 Days Past Due | Real estate loans: | One-to-four family residential mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
30-89 Days Past Due | Real estate loans: | One-to-four family residential mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	69	387
30-89 Days Past Due | Real estate loans: | Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	830	412
30-89 Days Past Due | Real estate loans: | Home equity and lines of credit | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	657	316
30-89 Days Past Due | Real estate loans: | Home equity and lines of credit | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	173	96
30-89 Days Past Due | Real estate loans: | Home equity and lines of credit | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
30-89 Days Past Due | Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
30-89 Days Past Due | Real estate loans: | Construction and land | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
30-89 Days Past Due | Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0
30-89 Days Past Due | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,071	2
30-89 Days Past Due | Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	573	2
30-89 Days Past Due | Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	498	0
30-89 Days Past Due | Commercial and industrial loans | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
30-89 Days Past Due | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	5	15
30-89 Days Past Due | Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	5	15
90 Days or More Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,441	4,370
90 Days or More Past Due | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	3,503	4,370
90 Days or More Past Due | Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,362	1,602
90 Days or More Past Due | Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,362	1,602
90 Days or More Past Due | Real estate loans: | Multifamily | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		0
90 Days or More Past Due | Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,947	2,173
90 Days or More Past Due | Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,947	1,893
90 Days or More Past Due | Real estate loans: | Commercial mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	280
90 Days or More Past Due | Real estate loans: | One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	118	314
90 Days or More Past Due | Real estate loans: | One-to-four family residential mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Real estate loans: | One-to-four family residential mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	118	314
90 Days or More Past Due | Real estate loans: | One-to-four family residential mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Real estate loans: | Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	76	281
90 Days or More Past Due | Real estate loans: | Home equity and lines of credit | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Real estate loans: | Home equity and lines of credit | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	76	281
90 Days or More Past Due | Real estate loans: | Home equity and lines of credit | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Real estate loans: | Construction and land | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0
90 Days or More Past Due | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	938	0
90 Days or More Past Due | Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	938	0
90 Days or More Past Due | Commercial and industrial loans | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
90 Days or More Past Due | Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Total Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	8,964	6,200
Total Past Due | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	6,921	6,111
Total Past Due | Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,784	1,882
Total Past Due | Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	189	0
Total Past Due | Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,595	1,882
Total Past Due | Real estate loans: | Multifamily | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		0
Total Past Due | Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	3,286	2,464
Total Past Due | Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	726	77
Total Past Due | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,560	2,040
Total Past Due | Real estate loans: | Commercial mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	347
Total Past Due | Real estate loans: | One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	945	1,072
Total Past Due | Real estate loans: | One-to-four family residential mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	603	206
Total Past Due | Real estate loans: | One-to-four family residential mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	273	479
Total Past Due | Real estate loans: | One-to-four family residential mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	69	387
Total Past Due | Real estate loans: | Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	906	693
Total Past Due | Real estate loans: | Home equity and lines of credit | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	657	316
Total Past Due | Real estate loans: | Home equity and lines of credit | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	249	377
Total Past Due | Real estate loans: | Home equity and lines of credit | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Total Past Due | Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Total Past Due | Real estate loans: | Construction and land | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Total Past Due | Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0
Total Past Due | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,033	74
Total Past Due | Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	573	74
Total Past Due | Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,460	0
Total Past Due | Commercial and industrial loans | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Total Past Due | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	10	15
Total Past Due | Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	10	15
Current | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,223,227	3,784,598
Current | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,068,340	3,641,667
Current | Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,822,795	2,516,183
Current | Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,814,903	2,502,531
Current | Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	7,892	13,227
Current | Real estate loans: | Multifamily | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net		425
Current | Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	895,963	806,133
Current | Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	868,955	765,371
Current | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	22,156	30,950
Current | Real estate loans: | Commercial mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,852	9,812
Current | Real estate loans: | One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	173,001	182,593
Current | Real estate loans: | One-to-four family residential mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	170,869	177,401
Current | Real estate loans: | One-to-four family residential mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	485	2,776
Current | Real estate loans: | One-to-four family residential mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,647	2,416
Current | Real estate loans: | Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	151,649	109,263
Current | Real estate loans: | Home equity and lines of credit | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	151,393	109,003
Current | Real estate loans: | Home equity and lines of credit | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	186	157
Current | Real estate loans: | Home equity and lines of credit | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	70	103
Current | Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	24,932	27,495
Current | Real estate loans: | Construction and land | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	22,862	27,495
Current | Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,070
Current | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	152,667	140,931
Current | Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	151,282	133,799
Current | Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	999	6,560
Current | Commercial and industrial loans | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	386	572
Current | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,220	2,000
Current | Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	$ 2,220	$ 2,000

Loans - Non-Accrual Loans, Excl

Loans - Non-Accrual Loans, Excluding PCD Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded Investment	$ 9,813	$ 7,622
Unpaid Principal Balance	10,851	8,743
With No Related Allowance	5,186	4,241
Real estate loans: | Multifamily
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded Investment	3,285	1,882
Unpaid Principal Balance	3,294	1,891
With No Related Allowance	2,050	512
Real estate loans: | Commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded Investment	5,184	5,117
Unpaid Principal Balance	5,639	5,627
With No Related Allowance	3,069	3,729
Real estate loans: | One-to-four family residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded Investment	118	314
Unpaid Principal Balance	118	346
With No Related Allowance	0	0
Real estate loans: | Home equity and lines of credit
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded Investment	262	281
Unpaid Principal Balance	512	530
With No Related Allowance	0	0
Commercial and industrial loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded Investment	964	28
Unpaid Principal Balance	1,288	349
With No Related Allowance	$ 67	$ 0

Loans - Interest Income on Non-

Loans - Interest Income on Non-Accrual Loans, Excluding PCD Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	$ 343	$ 175
Real estate loans: | Multifamily
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	154	70
Real estate loans: | Commercial mortgage
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	124	85
Real estate loans: | One-to-four family residential
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	13	10
Real estate loans: | Home equity and lines of credit
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	21	2
Commercial and industrial loans
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	$ 31	$ 8

Loans - Narrative, Collateral-D

Loans - Narrative, Collateral-Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Collateral-dependent impaired loans	$ 7,400	$ 7,400
Real estate loans: | Commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Collateral-dependent impaired loans	5,000
Real estate loans: | Multifamily
Financing Receivable, Allowance for Credit Losses [Line Items]
Collateral-dependent impaired loans	2,000
Real estate loans: | One-to-four family residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Collateral-dependent impaired loans	$ 335

Loans - Narrative, Troubled Deb

Loans - Narrative, Troubled Debt Restructuring Loans (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) contract	Dec. 31, 2021 USD ($) contract loan borrower
Financing Receivable, Modifications [Line Items]
Number of Relationships | borrower		2
Pre-Modification Outstanding Recorded Investment		$ 96
Post-Modification Outstanding Recorded Investment		96
Troubled debt restructurings	$ 7,000	$ 9,000
Number of loans modified as TDR that subsequently defaulted | contract	0	0
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of contracts | loan		4
Number of Relationships | borrower		2
Pre-Modification Outstanding Recorded Investment		$ 96
Post-Modification Outstanding Recorded Investment		$ 96
COVID-19
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	0

Allowance for Credit Losses (_3

Allowance for Credit Losses (“ACL”) on Loans - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment threshold	$ 500,000
Individually evaluated for impairment	38,200	$ 30,200
Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Losses [Line Items]
Increase in allowance for credit loss	$ 42,600,000	$ 39,000,000

Allowance for Credit Losses (_4

Allowance for Credit Losses (“ACL”) on Loans - Allowance for Credit Losses for Off-Balance Sheet Credit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	$ 1,852	$ 808
(Benefit)/provision for credit losses	(1,061)	307	$ 0
Ending balance	791	1,852	808
Cumulative Effect, Period of Adoption, Adjustment
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	0	737
Ending balance		0	737
Cumulative Effect, Period of Adoption, Adjusted Balance
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	$ 1,852	1,545
Ending balance		$ 1,852	$ 1,545

Allowance for Credit Losses (_5

Allowance for Credit Losses (“ACL”) on Loans - Changes in Allowance For Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 38,973	$ 37,607	$ 28,707
Provision/(benefit) for credit losses	4,482	(6,184)	12,742
Recoveries	487	278	465
Charge-offs	(1,325)	(3,081)	(4,307)
Ending balance	42,617	38,973	37,607
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	10,353	0
Ending balance		0	10,353
Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 38,973	47,960	28,707
Ending balance		$ 38,973	$ 47,960

Allowance for Credit Losses (_6

Allowance for Credit Losses (“ACL”) on Loans - Amount of Loans Receivable Held-for-Investment and Related Allowances Per Loan Portfolio Segment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 38,973,000	$ 37,607,000	$ 28,707,000
Charge-offs	(1,325,000)	(3,081,000)	(4,307,000)
Recoveries	487,000	278,000	465,000
Provisions (credit)	4,482,000	(6,184,000)	12,742,000
Ending balance	42,617,000	38,973,000	37,607,000
Originated Loans Net
Ending balance: individually evaluated for impairment	38,200	30,200
Ending balance: collectively evaluated for impairment	38,696,000	34,211,000
Ending balance: PCD loans evaluated for impairment	3,883,000	4,732,000
Loans held-for-investment, net	4,243,693,000	3,806,617,000
Ending balance: individually evaluated for impairment	8,939,000	9,986,000
Ending balance: collectively evaluated for impairment	4,218,109,000	3,740,295,000
Ending balance: PCD loans evaluated for impairment	11,502,000	15,819,000
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	5,143,000	40,517,000
Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0	10,353,000	0
Ending balance		0	10,353,000
Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	38,973,000	47,960,000	28,707,000
Ending balance		38,973,000	47,960,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	34,241,000	36,726,000
Charge-offs	(724,000)	(670,000)
Recoveries	309,000	159,000
Provisions (credit)	4,908,000	(5,515,000)
Ending balance	38,734,000	34,241,000	36,726,000
Originated Loans Net
Ending balance: individually evaluated for impairment	38,000	30,000
Ending balance: collectively evaluated for impairment	38,696,000	34,211,000
Ending balance: PCD loans evaluated for impairment	0	0
Loans held-for-investment, net	4,232,191,000	3,790,798,000
Ending balance: individually evaluated for impairment	8,939,000	9,986,000
Ending balance: collectively evaluated for impairment	4,218,109,000	3,740,295,000
Ending balance: PCD loans evaluated for impairment	0	0
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	5,143,000	40,517,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Real estate loans:
Originated Loans Net
Loans held-for-investment, net	4,075,261,000	3,647,778,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Commercial and industrial loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,173,000	1,842,000
Charge-offs	(446,000)	(646,000)
Recoveries	144,000	39,000
Provisions (credit)	1,243,000	991,000
Ending balance	4,114,000	3,173,000	1,842,000
Originated Loans Net
Ending balance: individually evaluated for impairment	18,000	1,000
Ending balance: collectively evaluated for impairment	4,096,000	3,172,000
Ending balance: PCD loans evaluated for impairment	0	0
Loans held-for-investment, net	154,700,000	141,005,000
Ending balance: individually evaluated for impairment	94,000	34,000
Ending balance: collectively evaluated for impairment	149,463,000	100,454,000
Ending balance: PCD loans evaluated for impairment	0	0
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	5,143,000	40,517,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Other loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	9,000	198,000
Charge-offs	0	(3,000)
Recoveries	12,000	5,000
Provisions (credit)	(12,000)	(3,000)
Ending balance	9,000	9,000	198,000
Originated Loans Net
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	9,000	9,000
Ending balance: PCD loans evaluated for impairment	0	0
Loans held-for-investment, net	2,230,000	2,015,000
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	2,230,000	2,015,000
Ending balance: PCD loans evaluated for impairment	0	0
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	0	0
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		3,541,000
Ending balance			3,541,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjustment | Commercial and industrial loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		947,000
Ending balance			947,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjustment | Other loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		(188,000)
Ending balance			(188,000)
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		40,267,000
Ending balance			40,267,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjusted Balance | Commercial and industrial loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		2,789,000
Ending balance			2,789,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjusted Balance | Other loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		10,000
Ending balance			10,000
PCD
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,732,000	881,000
Charge-offs	(601,000)	(2,411,000)
Recoveries	178,000	119,000
Provisions (credit)	(426,000)	(669,000)
Ending balance	3,883,000	4,732,000	881,000
Originated Loans Net
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	0	0
Ending balance: PCD loans evaluated for impairment	3,883,000	4,732,000
Loans held-for-investment, net	11,502,000	15,819,000
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	0	0
Ending balance: PCD loans evaluated for impairment	11,502,000	15,819,000
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	0	0
PCD | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		6,812,000
Ending balance			6,812,000
PCD | Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		7,693,000
Ending balance			7,693,000
Commercial and multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	26,785,000	33,005,000
Charge-offs	(278,000)	0
Recoveries	102,000	60,000
Provisions (credit)	2,876,000	(4,331,000)
Ending balance	29,485,000	26,785,000	33,005,000
Originated Loans Net
Ending balance: individually evaluated for impairment	18,000	25,000
Ending balance: collectively evaluated for impairment	29,467,000	26,760,000
Ending balance: PCD loans evaluated for impairment	0	0
Loans held-for-investment, net	3,723,828,000	3,326,662,000
Ending balance: individually evaluated for impairment	8,152,000	8,352,000
Ending balance: collectively evaluated for impairment	3,715,676,000	3,318,310,000
Ending balance: PCD loans evaluated for impairment	0	0
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	0	0
Commercial and multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjustment | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		(1,949,000)
Ending balance			(1,949,000)
Commercial and multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjusted Balance | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		31,056,000
Ending balance			31,056,000
One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,545,000	207,000
Charge-offs	0	(21,000)
Recoveries	32,000	29,000
Provisions (credit)	359,000	(1,903,000)
Ending balance	3,936,000	3,545,000	207,000
Originated Loans Net
Ending balance: individually evaluated for impairment	0	2,000
Ending balance: collectively evaluated for impairment	3,936,000	3,543,000
Ending balance: PCD loans evaluated for impairment	0	0
Loans held-for-investment, net	173,946,000	183,665,000
Ending balance: individually evaluated for impairment	666,000	1,562,000
Ending balance: collectively evaluated for impairment	173,280,000	182,103,000
Ending balance: PCD loans evaluated for impairment	0	0
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	0	0
One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjustment | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		5,233,000
Ending balance			5,233,000
One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjusted Balance | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		5,440,000
Ending balance			5,440,000
Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	560,000	260,000
Charge-offs	0	0
Recoveries	19,000	26,000
Provisions (credit)	287,000	(145,000)
Ending balance	866,000	560,000	260,000
Originated Loans Net
Ending balance: individually evaluated for impairment	2,000	2,000
Ending balance: collectively evaluated for impairment	864,000	558,000
Ending balance: PCD loans evaluated for impairment	0	0
Loans held-for-investment, net	152,555,000	109,956,000
Ending balance: individually evaluated for impairment	27,000	38,000
Ending balance: collectively evaluated for impairment	152,528,000	109,918,000
Ending balance: PCD loans evaluated for impairment	0	0
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	0	0
Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjustment | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		419,000
Ending balance			419,000
Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjusted Balance | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		679,000
Ending balance			679,000
Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	169,000	1,214,000
Charge-offs	0	0
Recoveries	0	0
Provisions (credit)	155,000	(124,000)
Ending balance	324,000	169,000	1,214,000
Originated Loans Net
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	324,000	169,000
Ending balance: PCD loans evaluated for impairment	0	0
Loans held-for-investment, net	24,932,000	27,495,000
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	24,932,000	27,495,000
Ending balance: PCD loans evaluated for impairment	0	0
Paycheck Protection Program (“PPP”) loans not evaluated for impairment	$ 0	0
Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjustment | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		(921,000)
Ending balance			(921,000)
Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Cumulative Effect, Period of Adoption, Adjusted Balance | Real estate loans:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		$ 293,000
Ending balance			$ 293,000

Premises and Equipment, Net - P

Premises and Equipment, Net - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 82,875	$ 80,323
Accumulated depreciation and amortization	(58,031)	(54,386)
Premises and equipment, net	24,844	25,937
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	5,156	5,156
Buildings and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	13,189	13,150
Capital leases
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	2,600	2,600
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	32,783	31,269
Leasehold improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 29,147	$ 28,148

Premises and Equipment, Net - N

Premises and Equipment, Net - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 3,600	$ 3,900	$ 3,900
Sales of premises and equipment	$ 0	$ 0	$ 0
ImpairmentLongLivedAssetHeldForUseStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag			impairment charges on leasehold assets
Capital leases
Property, Plant and Equipment [Line Items]
Impairment on finite-lived intangible assets			$ 303

Deposits - Deposit Account Bala

Deposits - Deposit Account Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Amount
Negotiable orders of withdrawal and interest-bearing checking	$ 1,132,290	$ 1,112,292
Non-interest bearing checking	852,660	898,490
Total transaction	1,984,950	2,010,782
Money market	508,067	609,430
Savings	917,180	1,166,761
Total savings	1,425,247	1,776,191
Under $100,000	525,944	154,320
$100,000 or more	214,078	228,041
Total certificates of deposit	740,022	382,361
Total deposits	$ 4,150,219	$ 4,169,334
Weighted Average Rate
Negotiable orders of withdrawal and interest-bearing checking	0.51%	0.06%
Total transaction	0.29%	0.03%
Money market	0.47%	0.07%
Savings	0.14%	0.10%
Total savings	0.26%	0.09%
Under $100,000	3.06%	0.59%
$100,000 or more	1.17%	0.75%
Total certificates of deposit	2.51%	0.69%
Total deposits	0.68%	0.12%

Deposits - Narrative (Details)

Deposits - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Certificates of Deposit
Deposit Liability [Line Items]
Brokered deposits	$ 390	$ 31

Deposits - Maturities Of Certif

Deposits - Maturities Of Certificates Of Deposit (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deposits [Abstract]
2023	$ 685,323
2024	28,653
2025	14,663
2026	3,968
2027	7,415
Total certificates of deposit	$ 740,022	$ 382,361

Deposits - Interest Expense On

Deposits - Interest Expense On Deposits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Transaction	$ 1,759	$ 805	$ 2,372
Savings and money market	1,851	2,226	7,869
Certificates of deposit	6,679	3,176	14,989
Total interest expense on deposits	$ 10,289	$ 6,207	$ 25,230

Borrowings - Summary of Borrowi

Borrowings - Summary of Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
Repurchase agreements	$ 25,000	$ 50,000
Other borrowings:
FHLB advances	547,000	365,000
Floating rate advances and other interest-bearing liabilities	11,859	6,755
Total long term debt	583,859	$ 421,755
Overnight line of credit	$ 177,000

Borrowings - Contractual Maturi

Borrowings - Contractual Maturities Repurchase Agreements and FHLB Advances for 2022 (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Long Term Debt Maturities Repayments Of Principal [Line Items]
Total long term debt	$ 583,859	$ 421,755
Repurchase Agreements
Long Term Debt Maturities Repayments Of Principal [Line Items]
2023	0	25,000
2024	25,000	0
2025	0	25,000
2026	0	0
Thereafter	0	0
Total long term debt	25,000	50,000
FHLB Advances
Long Term Debt Maturities Repayments Of Principal [Line Items]
2023	264,500	95,000
2024	25,000	87,500
2025	112,500	25,000
2026	20,000	112,500
Thereafter	125,000	45,000
Total long term debt	$ 547,000	$ 365,000

Borrowings - Contractual Matu_2

Borrowings - Contractual Maturities Repurchase Agreements and FHLB Advances for 2021 (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Long Term Debt Maturities Repayments Of Principal [Line Items]
Total long term debt	$ 583,859	$ 421,755
Repurchase Agreements
Long Term Debt Maturities Repayments Of Principal [Line Items]
2022	0	25,000
2023	25,000	0
2024	0	25,000
2025	0	0
Thereafter	0	0
Total long term debt	25,000	50,000
FHLB Advances
Long Term Debt Maturities Repayments Of Principal [Line Items]
2022	264,500	95,000
2023	25,000	87,500
2024	112,500	25,000
2025	20,000	112,500
Thereafter	125,000	45,000
Total long term debt	$ 547,000	$ 365,000

Borrowings - Summary of FHLB an

Borrowings - Summary of FHLB and Repurchase Agreements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
FHLB Advances
Short-term Debt [Line Items]
Average balance during year	$ 351,725	$ 434,422
Maximum outstanding at any month end	$ 547,000	$ 510,000
Weighted average interest rate at end of year	3.14%	2.10%
Weighted average interest rate during year	1.83%	2.08%
Repurchase Agreements
Short-term Debt [Line Items]
Average balance during year	$ 34,795	$ 60,068
Maximum outstanding at any month end	$ 50,000	$ 75,000
Weighted average interest rate at end of year	2.42%	2.36%
Weighted average interest rate during year	8.21%	2.36%

Borrowings - Narrative (Details

Borrowings - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Short Term And Long Term Debt [Line Items]
FHLB advances	$ 1,930
Unencumbered securities	359.9
Multifamily loans held as collateral	1,570
Repurchase Agreements | Mortgage-backed securities
Schedule Of Short Term And Long Term Debt [Line Items]
Mortgage-backed securities amortized cost	35.2	$ 52.6
Mortgage-backed securities held for sale fair value	$ 33.2	$ 53.8

Subordinated Debt (Details)

Subordinated Debt (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 17, 2022	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Subordinated debentures, net of issuance costs	$ 62,000	$ 60,996	$ 0
Subordinated notes interest rate		5%
Debt issuance costs	$ 1,100
Amortization expense		$ 112
Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis points	2%

Income Taxes - Income Tax Expen

Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Federal tax expense (benefit):
Current	$ 15,784	$ 15,313	$ 11,270
Deferred	(233)	3,107	(2,391)
Federal tax expense (benefit)	15,551	18,420	8,879
State and local tax expense (benefit):
Current	8,581	8,001	4,825
Deferred	(392)	52	(667)
State and local tax expense (benefit)	8,189	8,053	4,158
Income tax expense	$ 23,740	$ 26,473	$ 13,037

Income Taxes - Reconciliation B

Income Taxes - Reconciliation Between The Amount Of Reported Total Income Tax Expense And The Amount Computed By Multiplying The Applicable Statutory Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Tax expense at statutory rate	$ 17,820	$ 20,397	$ 10,505
Applicable statutory federal income tax rate	21%	21%	21%
Increase (decrease) in taxes resulting from:
State tax, net of federal income tax	$ 6,469	$ 6,362	$ 3,285
Bank owned life insurance	(717)	(862)	(793)
ESOP fair market value adjustment	69	102	42
Incentive stock options	0	6	18
Merger related costs	0	0	147
Other, net	99	468	(167)
Income tax expense	$ 23,740	$ 26,473	$ 13,037

Income Taxes - Tax Effects Of T

Income Taxes - Tax Effects Of Temporary Differences That Give Rise To Significant Portions Of The Deferred Tax Assets And Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Allowance for credit losses	$ 12,202	$ 11,057
Capitalized leases
Deferred compensation	2,958	3,145
Accrued salaries	1,610	1,338
Postretirement benefits	313	354
Equity awards	2,091	2,051
Straight-line leases adjustment	1,608	1,713
Asset retirement obligation	47	68
Reserve for accrued interest receivable	681	620
Reserve for loan commitments	231	537
Employee Stock Ownership Plan	633	645
Other	323	317
Depreciation	3,552	3,229
Fair value adjustments of acquired loans	1,057	1,440
Fair value adjustments of pension benefit obligations	130	139
Unrealized losses on securities	18,875	0
Total gross deferred tax assets	46,311	26,653
Deferred tax liabilities:
Unrealized gains on securities – AFS	0	761
Unrealized actuarial gains on post retirement benefits	65	15
Fair value adjustments of acquired securities	280	580
Fair value adjustments of deposit liabilities	32	28
Deferred loan fees	2,553	2,010
Other	20	23
Total gross deferred tax liabilities	2,950	3,417
Net deferred tax asset	$ 43,361	$ 23,236

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Bad debt base year reserve	$ 5.9	$ 5.9
Federal tax bad debt deferred tax liability	$ 2.8	2.8
Accounting Standards Update 2016-13
Operating Loss Carryforwards [Line Items]
Deferred tax assets		$ 1.2

Income Taxes - Reconciliation O

Income Taxes - Reconciliation Of Uncertain Tax Position (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 141	$ 157	$ 190
Settlements based on tax positions related to prior years	(31)	(125)	(33)
(Reductions) additions based on tax positions related to prior years	(23)
(Reductions) additions based on tax positions related to prior years		109	0
Ending balance	$ 87	$ 141	$ 157

Retirement Benefits - Narrative

Retirement Benefits - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Requisite service period for employees to be eligible for 401(k) plan	3 months
Percent of employer match on employee contributions	25%
Percent of base compensation contributed by eligible employees	6%
Contribution plan participation period (years)	3 years
Contribution plan subsequent participation period (years)	3 years
Requisite service period for members to become fully vested	5 years
Company contribution amount	$ 553	$ 515	$ 508
ESOP compensation expense	1,700	1,900	1,400
Estimated gain that will be amortized from accumulated other comprehensive income (loss) into net periodic cost	2
Prior service credit that will be amortized from accumulated other comprehensive income (loss) into net periodic cost	$ (19)
Medical cost trend rate	8.75%
Medical cost trend rate reduction percent per year	0.50%
Medical cost trend rate ultimate rate	4.75%
Benefits paid	$ 81	99	97
Benefits expected to be paid under the postretirement health benefits plan in 2023	80
Benefits expected to be paid under the postretirement health benefits plan in 2024	78
Benefits expected to be paid under the postretirement health benefits plan in 2025	76
Benefits expected to be paid under the postretirement health benefits plan in 2026	73
Benefits expected to be paid under the postretirement health benefits plan in 2027	70
Benefits expected to be paid under the postretirement health benefits plan in 2027 through 2031	299
Supplemental Employee Retirement Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	13,500	16,500
Net gain (loss) in postretirement benefit cost included in compensation and employee benefits	$ (2,200)	1,700	1,600
Minimum
Defined Benefit Plan Disclosure [Line Items]
Percent of compensation employees can invest in 401(k) plan	2%
Matching contribution percent	25%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Percent of compensation employees can invest in 401(k) plan	100%
Matching contribution percent	50%
First ESOP
Defined Benefit Plan Disclosure [Line Items]
Employee stock ownership plan, shares authorized and purchased (in shares)	2,463,884
Initial public offering price (usd per share)	$ 7.13
Outstanding loan balance	$ 7,600	$ 8,500
Shares released and allocated to participants (in shares)	117,998	123,460
Second ESOP
Defined Benefit Plan Disclosure [Line Items]
Employee stock ownership plan, shares authorized and purchased (in shares)	1,422,357
Initial public offering price (usd per share)	$ 10
Outstanding loan balance	$ 10,200	$ 10,800
Shares released and allocated to participants (in shares)	56,700	59,064
Supplemental ESOP
Defined Benefit Plan Disclosure [Line Items]
Company contribution to SESOP plan	$ 54	$ 41	$ 57

Retirement Benefits - Funded St

Retirement Benefits - Funded Status And Components Of Post Retirement Benefit Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefits paid	$ (81)	$ (99)	$ (97)
Other Pension Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Accumulated postretirement benefit obligation beginning of year	979	1,133	1,241
Interest cost	26	22	33
Actuarial gain	(109)	(77)	(44)
Benefits paid	(81)	(99)	(97)
Accumulated postretirement benefit obligation end of year	815	979	1,133
Accrued liability (included in accrued expenses and other liabilities)	$ 815	$ 979	$ 1,133

Retirement Benefits - Amounts R

Retirement Benefits - Amounts Recognized In Accumulated Other Comprehensive Income (Loss) (Details) - Other Pension Plans, Defined Benefit - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Net (gain) loss	$ (98)	$ 87
Prior service credit	(133)	(171)
Loss recognized in accumulated other comprehensive income (loss)	$ (231)	$ (84)

Retirement Benefits - Component

Retirement Benefits - Components Of Net Periodic Post Retirement Benefit Cost (Details) - Other Pension Plans, Defined Benefit - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 26	$ 22	$ 33
Amortization of prior service credits	(19)	(20)	(20)
Amortization of unrecognized loss	0	0	1
Net postretirement benefit cost included in compensation and employee benefits	$ 7	$ 2	$ 14

Retirement Benefits - Defined B

Retirement Benefits - Defined Benefit Plan, Assumptions Used In Accounting For The Plan (Details) - Other Pension Plans, Defined Benefit	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assumptions used to determine benefit obligation at period end:
Discount rate	5.02%	2.50%	2%
Assumptions used to determine net periodic benefit cost for the year:
Discount rate	2.50%	2%	2.75%

Retirement Benefits - Summary O

Retirement Benefits - Summary Of Percentage Point Change In Assumed Health Care Cost Trends (Details) - Other Pension Plans, Defined Benefit - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Aggregate of service and interest components of net periodic cost (benefit), one percentage point increase	$ 3	$ 2
Aggregate of service and interest components of net periodic cost (benefit), one percentage point decrease	(2)	(2)
Effect on accumulated postretirement benefit obligation, one percentage point increase	80	78
Effect on accumulated postretirement benefit obligation, one percentage point decrease	$ (70)	$ (68)

Equity Incentive Plans - Narrat

Equity Incentive Plans - Narrative (Details)				12 Months Ended
	Jan. 28, 2022 USD ($) shares	Jan. 29, 2021 USD ($) shares	Feb. 17, 2020 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	May 22, 2019 shares	Feb. 22, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)				0	0	0
Allocated stock-based compensation expense | $				$ 1,800,000	$ 994,000	$ 1,400,000
Granted (in shares)				181,908	176,930
2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under equity incentive plan (in shares)				4,097,387				6,000,000
Number of shares authorized, issued in form of restricted stock reduction multiplier							4.5
2014 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under equity incentive plan (in shares)				4,978,249
Restricted Stock And Restricted Stock Units (RSUs) | 2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under equity incentive plan (in shares)				910,530			1,333,333
Grant date value | $			$ 1,300,000
Restricted Stock And Restricted Stock Units (RSUs) | 2019 Equity Incentive Plan | Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			28,460
Vesting period (years)			1 year
Restricted Stock And Restricted Stock Units (RSUs) | 2019 Equity Incentive Plan | Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			55,284
Period after grant date to begin vesting period			1 year
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future stock-based compensation expense | $				$ 2,800,000
Average period of expected future stock option expense				2 years 3 months 18 days
Restricted Stock | 2014 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under equity incentive plan (in shares)				1,422,357
Stock Options | 2014 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under equity incentive plan (in shares)				3,555,892
Restricted Stock Units (RSUs) | 2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	157,416	147,315	83,744
Grant date value | $	$ 2,500,000	$ 1,800,000
Restricted Stock Units (RSUs) | 2019 Equity Incentive Plan | Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	30,798	32,769
Vesting period (years)	1 year	1 year
Restricted Stock Units (RSUs) | 2019 Equity Incentive Plan | Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	126,618	114,546
Vesting period (years)	3 years	5 years	5 years
Period after grant date to begin vesting period	1 year
Beginning of vesting period (years)		1 year
Performance Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares issuable based on threshold performance	0%	0%	0%
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares issuable based on threshold performance	120%	225%	225%
Performance Shares | 2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	24,492	29,615	19,837
Grant date value | $	$ 386,484	$ 366,041	$ 313,623
Vesting period (years)	3 years	3 years	3 years

Equity Incentive Plans - Stock

Equity Incentive Plans - Stock Options Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Number of Stock Options
Outstanding - Beginning Balance (in shares)	1,769,979	2,214,193
Forfeited (in shares)		(50,169)
Exercised (in shares)	(187,153)	(394,045)
Outstanding - Ending Balance (in shares)	1,582,826	1,769,979	2,214,193
Exercisable (in shares)	1,582,826
Weighted Average Grant Date Fair Value
Outstanding (usd per share) - Beginning Balance	$ 4.02	$ 4.01
Forfeited (usd per share)
Exercised (usd per share)	3.92	3.96
Outstanding (usd per share) - Ending Balance	4.03	4.02	$ 4.01
Exercisable (usd per share)	4.03
Weighted Average Exercise Price
Outstanding (usd per share) - Beginning Balance	13.95	13.94
Forfeited (usd per share)		13.62
Exercised (usd per share)	13.23	13.90
Outstanding (usd per share) - Ending Balance	14.04	$ 13.95	$ 13.94
Exercisable (usd per share)	$ 14.04
Outstanding, weighted average contractual life (years)	2 years 3 days	2 years 11 months 12 days	3 years 11 months 15 days
Exercisable, weighted average contractual life (years)	2 years 3 days

Equity Incentive Plans - Status

Equity Incentive Plans - Status Of The Company's Restricted Share Awards (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Number of Shares Awarded
Non-vested (shares) - Beginning Balance	222,844	104,010
Granted (in shares)	181,908	176,930
Vested (shares)	(62,836)	(42,470)
Forfeited (shares)	(20,415)	(15,626)
Non-vested (shares) - Ending Balance	321,501	222,844
Weighted Average Grant Date Fair Value
Non-vested (usd per share) - Beginning Balance	$ 13.21	$ 15.91
Granted (usd per share)	15.78	12.36
Vested (usd per share)	12.87	16.06
Forfeited (usd per share)	14.34	13.80
Non-vested (usd per share) - Ending Balance	$ 14.66	$ 13.21

Commitments and Contingencies -

Commitments and Contingencies - Commitment and Contingent Liabilities Not Reflected in Consolidated Financial Statements (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Commitments to extend credit
Commitments and contingent liabilities	$ 37,473	$ 159,403
Unused lines of credit
Commitments and contingent liabilities	288,380	245,860
Standby letters of credit
Commitments and contingent liabilities	$ 4,432	$ 3,266

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Guarantees extend term period (years)	1 year
Allowance for estimated losses	$ 791	$ 1,900
Agreements term (years)	3 years

Regulatory Requirements - Narra

Regulatory Requirements - Narrative (Details)	Dec. 31, 2022	Dec. 31, 2021
Regulatory Requirements [Abstract]
Common equity Tier 1 capital (to risk-weighted assets), for capital adequacy purposes ratio	4.50%	8.50%
Tier 1 capital (to risk-weighted assets), for capital adequacy purposes ratio	0.06
Total capital (to risk-weighted assets), for capital adequacy purposes ratio	0.080
Tier 1 capital (core) (to adjusted total assets), for capital adequacy purposes ratio	0.04
Tier 1 capital (core) (to adjusted total assets), for well capitalized under prompt corrective action provisions ratio	0.050
Common equity Tier 1 capital (to risk-weighted assets), for well capitalized under prompt corrective action provisions ratio	6.50%	8.50%
Tier 1 risk-based capital ratio	0.080
Total capital (to risk-weighted assets), for well capitalized under prompt corrective action provisions ratio	0.100
Tier 1 risk-based capital required for capital adequacy to risk-weighted assets, higher risk weight	2.50%

Regulatory Requirements - Regul

Regulatory Requirements - Regulatory Capital Amounts And Ratios Compared To Regulatory Requirements (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CBLR, amount	$ 708,430
CBLR, ratio	12.65%
CBLR, for capital adequacy purposes amount	$ 503,977
CBLR, for capital adequacy purposes ratio	9%
CBLR, for well capitalized under prompt corrective action provisions amount	$ 503,977
CBLR, for well capitalized under prompt corrective action provisions ratio	9%
Common Equity Tier 1 Capital (to risk-weighted assets), amount		$ 696,368
Common Equity Tier 1 Capital (to risk-weighted assets), ratio		12.93%
Common Equity Tier 1 Capital (to risk-weighted assets), for capital adequacy purposes amount		$ 457,751
Common Equity Tier 1 Capital (to risk-weighted assets), for capital adequacy purposes ratio	4.50%	8.50%
Common Equity Tier 1 Capital (to risk-weighted assets), for well capitalized under prompt corrective action provisions amount		$ 457,751
Common Equity Tier 1 Capital (to risk-weighted assets), for well capitalized under prompt corrective action provisions ratio	6.50%	8.50%
Subsidiaries
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CBLR, amount	$ 710,719
CBLR, ratio	12.68%
CBLR, for capital adequacy purposes amount	$ 504,284
CBLR, for capital adequacy purposes ratio	9%
CBLR, for well capitalized under prompt corrective action provisions amount	$ 504,284
CBLR, for well capitalized under prompt corrective action provisions ratio	9%
Common Equity Tier 1 Capital (to risk-weighted assets), amount		$ 659,522
Common Equity Tier 1 Capital (to risk-weighted assets), ratio		12.24%
Common Equity Tier 1 Capital (to risk-weighted assets), for capital adequacy purposes amount		$ 457,872
Common Equity Tier 1 Capital (to risk-weighted assets), for capital adequacy purposes ratio		8.50%
Common Equity Tier 1 Capital (to risk-weighted assets), for well capitalized under prompt corrective action provisions amount		$ 457,872
Common Equity Tier 1 Capital (to risk-weighted assets), for well capitalized under prompt corrective action provisions ratio		8.50%

Fair Value Measurement - Fair V

Fair Value Measurement - Fair Value, Assets And Liabilities Measured On Recurring And Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	$ 952,173	$ 1,208,237
Individually evaluated loans	4,640	3,807
Other real estate owned		100
Investment measured at fair value	10,100	5,000
U.S. Government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	72,076	2,290
Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	182,755	232,831
Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	952,173	1,208,237
Trading securities	10,751	13,461
Equity securities	361	328
Total	963,285	1,222,026
Measured on a recurring basis | U.S. Government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	72,076	2,290
Measured on a recurring basis | Mortgage-backed securities:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	697,342	973,116
Measured on a recurring basis | Mortgage-backed securities, Pass-through certificates, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	432,618	581,406
Measured on a recurring basis | Mortgage-backed securities, REMICs, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	264,724	391,710
Measured on a recurring basis | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	21	72
Measured on a recurring basis | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	182,734	232,759
Measured on a recurring basis | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	182,755	232,831
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Trading securities	10,751	13,461
Equity securities	361	328
Total	11,112	13,789
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities, Pass-through certificates, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities, REMICs, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	952,173	1,208,237
Trading securities	0	0
Equity securities	0	0
Total	952,173	1,208,237
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | U.S. Government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	72,076	2,290
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	697,342	973,116
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities, Pass-through certificates, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	432,618	581,406
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities, REMICs, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	264,724	391,710
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	21	72
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	182,734	232,759
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	182,755	232,831
Measured on a recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Trading securities	0	0
Equity securities	0	0
Total	0	0
Measured on a recurring basis | Significant Unobservable Inputs (Level 3) | U.S. Government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities, Pass-through certificates, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities, REMICs, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	4,640	3,907
Measured on a non-recurring basis | Real estate loans:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	4,578	3,795
Measured on a non-recurring basis | Real estate loans: | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	2,631	3,599
Measured on a non-recurring basis | Real estate loans: | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	1,923
Measured on a non-recurring basis | Real estate loans: | Home equity and lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	24	27
Measured on a non-recurring basis | Real estate loans: | One-to-four family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans		169
Measured on a non-recurring basis | Commercial and industrial loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	62	12
Measured on a non-recurring basis | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned		100
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans: | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans: | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans: | Home equity and lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans: | One-to-four family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans		0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and industrial loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned		0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real estate loans:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real estate loans: | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real estate loans: | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real estate loans: | Home equity and lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real estate loans: | One-to-four family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans		0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Commercial and industrial loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned		0
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	4,640	3,907
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	4,578	3,795
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans: | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	2,631	3,599
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans: | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	1,923
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans: | Home equity and lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	24	27
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans: | One-to-four family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans		169
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Commercial and industrial loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	$ 62	12
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned		$ 100

Fair Value Measurement - Qualit

Fair Value Measurement - Qualitative Information For Level 3 Assets Measured At Fair Value On A Non-Recurring Basis (Details) $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Individually evaluated loans	$ 4,640	$ 3,807
Other real estate owned		$ 100
Appraisals | Discount for costs to sell
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans receivable	0.070	0.070
Appraisals | Discount for quick sale
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans receivable	0.100	0.100
Discounted cash flows | Interest rates | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans receivable	0.0488	0.0488
Discounted cash flows | Interest rates | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans receivable	0.0750	0.0625

Fair Value Measurement - Narrat

Fair Value Measurement - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Impaired loans held-for-investment and held-for-sale with outstanding principal balances	$ 6,700	$ 5,800
Estimated fair value of impaired loans held-for-investment and held-for-sale	4,600	3,800
Decrease in reserve for impaired loans	8	43
Net impairment charge-offs	838	2,800
Assets acquired through foreclosure	$ 0	$ 100

Fair Value Measurement - Estima

Fair Value Measurement - Estimated Fair Values Of The Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2022	Jun. 17, 2022
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag	Derivative assets
Derivative Liability Statement Of Financial Position Extensible Enumeration Not Disclosed Flag	Derivative liabilities
Financial assets:
Debt securities available-for-sale	$ 1,208,237	$ 952,173
Debt securities held-to-maturity	5,475	10,389
Financial liabilities:
Subordinated debentures, net of issuance costs	0	60,996	$ 62,000
Investment measured at fair value	5,000	10,100
Carrying Value
Financial assets:
Cash and cash equivalents	91,068	45,799
Trading securities	13,461	10,751
Debt securities available-for-sale	1,208,237	952,173
Debt securities held-to-maturity	5,283	10,760
Equity securities	328	361
FHLBNY stock, at cost	22,336	30,382
Net loans held-for-investment	3,767,644	4,201,076
Derivative assets	923	5,321
Financial liabilities:
Deposits	4,169,334	4,150,219
FHLB advances and other borrowings (including securities sold under agreements to repurchase)	421,755	583,859
Subordinated debentures, net of issuance costs		60,996
Advance payments by borrowers for taxes and insurance	24,909	25,995
Derivative liabilities	925	5,321
Estimated Fair Value
Financial assets:
Cash and cash equivalents	91,068	45,799
Trading securities	13,461	10,751
Debt securities available-for-sale	1,208,237	952,173
Debt securities held-to-maturity	5,475	10,389
Equity securities	328	361
FHLBNY stock, at cost	22,336	30,382
Net loans held-for-investment	3,904,026	4,016,849
Derivative assets	923	5,321
Financial liabilities:
Deposits	4,172,125	4,148,938
FHLB advances and other borrowings (including securities sold under agreements to repurchase)	426,235	564,588
Subordinated debentures, net of issuance costs		54,393
Advance payments by borrowers for taxes and insurance	24,909	25,995
Derivative liabilities	925	5,321
Estimated Fair Value | Level 1
Financial assets:
Cash and cash equivalents	91,068	45,799
Trading securities	13,461	10,751
Debt securities available-for-sale	0	0
Debt securities held-to-maturity	0	0
Equity securities	328	361
FHLBNY stock, at cost	0	0
Net loans held-for-investment	0	0
Derivative assets	0	0
Financial liabilities:
Deposits	0	0
FHLB advances and other borrowings (including securities sold under agreements to repurchase)	0	0
Subordinated debentures, net of issuance costs		0
Advance payments by borrowers for taxes and insurance	0	0
Derivative liabilities	0	0
Estimated Fair Value | Level 2
Financial assets:
Cash and cash equivalents	0	0
Trading securities	0	0
Debt securities available-for-sale	1,208,237	952,173
Debt securities held-to-maturity	5,475	10,389
Equity securities	0	0
FHLBNY stock, at cost	22,336	30,382
Net loans held-for-investment	0	0
Derivative assets	923	5,321
Financial liabilities:
Deposits	4,172,125	4,148,938
FHLB advances and other borrowings (including securities sold under agreements to repurchase)	426,235	564,588
Subordinated debentures, net of issuance costs		54,393
Advance payments by borrowers for taxes and insurance	24,909	25,995
Derivative liabilities	925	5,321
Estimated Fair Value | Level 3
Financial assets:
Cash and cash equivalents	0	0
Trading securities	0	0
Debt securities available-for-sale	0	0
Debt securities held-to-maturity	0	0
Equity securities	0	0
FHLBNY stock, at cost	0	0
Net loans held-for-investment	3,904,026	4,016,849
Derivative assets	0	0
Financial liabilities:
Deposits	0	0
FHLB advances and other borrowings (including securities sold under agreements to repurchase)	0	0
Subordinated debentures, net of issuance costs		0
Advance payments by borrowers for taxes and insurance	0	0
Derivative liabilities	$ 0	$ 0

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 61,119	$ 70,654	$ 36,988
Weighted average shares outstanding-basic (in shares)	46,234,122	48,416,495	48,721,504
Effect of non-vested restricted stock and stock options outstanding (in shares)	203,997	337,768	64,459
Weighted average shares outstanding-diluted (in shares)	46,438,119	48,754,263	48,785,963
Earnings per share-basic (usd per share)	$ 1.32	$ 1.46	$ 0.76
Earnings per share-diluted (usd per share)	$ 1.32	$ 1.45	$ 0.76
Anti-dilutive shares (in shares)	756,765	323,466	1,972,136

Stock Repurchase Program (Detai

Stock Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jun. 16, 2022	Mar. 18, 2021
Equity, Class of Treasury Stock [Line Items]
Average cost of treasury stock (usd per share)	$ 14.72	$ 15.91	$ 11.59
Treasury stock acquired	$ 30,881	$ 53,321	$ 10,405
March 2021 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount				$ 45,000	$ 54,200
Repurchased common stock acquired (in shares)	2,092,157	3,342,700
Average cost of treasury stock (usd per share)	$ 14.72	$ 15.91
Treasury stock acquired	$ 30,800	$ 53,200
Maximum value of shares remaining for repurchases	$ 22,400	$ 8,300

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	$ 5,705	$ 5,394	$ 3,967
Income on bank owned life insurance	3,414	4,103	3,774
Gains on available-for-sale debt securities, net	279	1,495	327
(Losses)/gains on trading securities, net	(2,206)	1,703	1,601
Gains on sale of loans	453	1,401	665
Other	338	357	1,138
Total non-interest income	7,983	14,453	11,472
Service charges
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	3,380	3,075	2,356
ATM and card interchange fees
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	1,920	1,893	1,326
Investment fees
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	$ 405	$ 426	$ 285

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 34,288	$ 33,943
Operating lease liabilities	39,790	39,851
Operating lease, rent expense	$ 6,100	$ 5,900	$ 8,000
Operating lease, accelerated rent expense			$ 1,800
Minimum
Lessee, Lease, Description [Line Items]
Term of lease	3 months
Renewal term	5 years
Maximum
Lessee, Lease, Description [Line Items]
Term of lease	32 years 6 months
Renewal term	10 years

Leases - Supplemental Lease Inf

Leases - Supplemental Lease Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 6,006	$ 5,797	$ 6,160
Variable lease cost	3,621	4,092	3,276
Net lease cost	9,627	9,889	9,436
Cash paid for amounts included in measurement of operating lease liabilities	6,350	6,538	6,490
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 4,983	$ 1,596	$ 3,568
Weighted average remaining lease term (in years)	11 years 2 months 19 days	11 years 10 months 2 days	12 years 3 months 10 days
Weighted average discount rate	3.54%	3.55%	3.60%

Leases - Lease Payments Obligat

Leases - Lease Payments Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
2023	$ 6,490
2024	6,069
2025	5,729
2026	4,967
2027	4,007
Thereafter	22,557
Total lease payments	49,819
Less: imputed interest	(10,029)
Present value of lease liabilities	$ 39,790	$ 39,851

Derivatives - Additional Inform

Derivatives - Additional Information (Details) - Interest Rate Swap	12 Months Ended
	Dec. 31, 2022 USD ($) instrument	Dec. 31, 2021 USD ($) instrument
Derivative [Line Items]
Number of derivative instruments held | instrument	7	7
Derivative, notional amount	$ 37,000,000	$ 38,100,000
Fee income	$ 0	$ 0

Derivatives - Fair Value of Der

Derivatives - Fair Value of Derivatives (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other assets
Derivative [Line Items]
Fair value of derivative asset	$ 5,321	$ 923
Other liabilities
Derivative [Line Items]
Fair value of derivative liability	$ 5,321	$ 925

Parent-only Financial Informa_3

Parent-only Financial Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jun. 17, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Other assets	$ 54,427		$ 37,207
Total assets	5,601,293		5,430,542
Liabilities and Stockholders' Equity
Subordinated debentures, net of issuance costs	60,996	$ 62,000	0
Total liabilities	4,899,903		4,690,659
Total stockholders' equity	701,390		739,883	$ 753,981	$ 695,853
Total liabilities and stockholders’ equity	5,601,293		5,430,542
Parent Company
Assets
Cash in Northfield Bank	39,950		14,411
Investment in Northfield Bank	703,666		703,036
ESOP loan receivable	17,814		19,283
Other assets	1,635		3,412
Total assets	763,065		740,142
Liabilities and Stockholders' Equity
Subordinated debentures, net of issuance costs	60,996		0
Total liabilities	679		259
Total stockholders' equity	701,390		739,883
Total liabilities and stockholders’ equity	$ 763,065		$ 740,142

Parent-only Financial Informa_4

Parent-only Financial Information - Condensed Statements of Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest expense on subordinated debt	$ 1,797	$ 0	$ 0
Income tax expense	23,740	26,473	13,037
Net income	61,119	70,654	36,988
Other comprehensive (loss) income, net of tax	(50,394)	(11,097)	8,461
Comprehensive income	10,725	59,557	45,449
Parent Company
Interest on ESOP loan	627	677	1,043
Interest income on deposits in other financial institutions	4	18	129
Undistributed earnings of Northfield Bank	62,964	70,956	37,544
Total income	63,595	71,651	38,716
Interest expense on subordinated debt	1,797	0	0
Other expenses	1,020	831	1,647
Income tax expense	(341)	166	81
Total expenses	2,476	997	1,728
Net income	61,119	70,654	36,988
Other comprehensive (loss) income, net of tax	(50,394)	(11,097)	8,461
Comprehensive income	$ 10,725	$ 59,557	$ 45,449

Parent-only Financial Informa_5

Parent-only Financial Information - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net income	$ 61,119	$ 70,654	$ 36,988
Adjustments to reconcile net income to net cash used in operating activities:
Decrease (increase) in other assets	(3,673)	(14,531)	1,294
Amortization of debt issuance costs	112	0	0
Net cash used in operating activities	83,331	64,759	55,214
Cash flows from investing activities
Proceeds from issuance of subordinated debt, net of issuance costs	60,884	0	0
Cash and cash equivalents acquired in business acquisition	0	0	72,875
Net cash (used in) provided by investing activities	(280,213)	84,995	(131,925)
Cash flows from financing activities
Exercise of stock options	1,662	3,409	175
Net cash provided by (used in) financing activities	151,613	(146,230)	16,437
Net increase (decrease) in cash and cash equivalents	(45,269)	3,524	(60,274)
Cash and cash equivalents at beginning of year	91,068	87,544	147,818
Cash and cash equivalents at end of year	45,799	91,068	87,544
Parent Company
Cash flows from operating activities
Net income	61,119	70,654	36,988
Adjustments to reconcile net income to net cash used in operating activities:
Decrease (increase) in other assets	702	(4,034)	(1,008)
Increase (decrease) in other liabilities	420	12	(1,499)
Undistributed earnings of Northfield Bank	(62,964)	(70,956)	(37,544)
Net cash used in operating activities	(611)	(4,324)	(3,063)
Cash flows from investing activities
Proceeds from issuance of subordinated debt, net of issuance costs	60,884	0	0
Cash and cash equivalents acquired in business acquisition	0	0	5,903
Dividends from Northfield Bank	17,143	69,916	16,174
Net cash (used in) provided by investing activities	17,143	69,916	22,077
Cash flows from financing activities
Principal payments on ESOP loan receivable	1,469	1,553	1,061
Purchase of treasury stock	(30,881)	(53,321)	(10,405)
Dividends paid	(24,127)	(24,299)	(21,476)
Exercise of stock options	1,662	3,409	175
Net cash provided by (used in) financing activities	9,007	(72,658)	(30,645)
Net increase (decrease) in cash and cash equivalents	25,539	(7,066)	(11,631)
Cash and cash equivalents at beginning of year	14,411	21,477	33,108
Cash and cash equivalents at end of year	$ 39,950	$ 14,411	$ 21,477