Northfield Bancorp, Inc. (NFBK) 10-Q 10 May 22 2022 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2022	Apr. 30, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		48,898,255
Entity Central Index Key	0001493225
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
ASSETS:
Cash and due from banks	$ 16,053	$ 18,191
Interest-bearing deposits in other financial institutions	119,461	72,877
Total cash and cash equivalents	135,514	91,068
Trading securities	12,156	13,461
Debt securities available-for-sale	1,154,277	1,208,237
Debt securities held-to-maturity, at amortized cost (estimated fair value of $5,182 at March 31, 2022, and $5,475 at December 31, 2021, and no allowance for credit losses at March 31, 2022 and December 31, 2021)	5,243	5,283
Equity securities	7,883	5,342
Total loans held-for-investment, net	3,898,581	3,806,617
Less: allowance for credit losses	(39,274)	(38,973)
Net loans held-for-investment	3,859,307	3,767,644
Accrued interest receivable	14,591	14,572
Bank-owned life insurance	165,336	164,500
Federal Home Loan Bank (“FHLB”) of New York stock, at cost	21,211	22,336
Operating lease right-of-use assets	32,813	33,943
Premises and equipment, net	25,356	25,937
Goodwill	41,012	41,012
Other assets	41,591	37,207
Total assets	5,516,290	5,430,542
LIABILITIES:
Deposits	4,302,866	4,169,334
Securities sold under agreements to repurchase	50,000	50,000
FHLB advances and other borrowings	347,877	371,755
Operating lease liabilities	38,610	39,851
Advance payments by borrowers for taxes and insurance	30,032	24,909
Accrued expenses and other liabilities	31,507	34,810
Total liabilities	4,800,892	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 March 31, 2022 and December 31, 2021, 48,910,192 and 49,266,733 outstanding at March 31, 2022 and December 31, 2021, respectively	648	648
Additional paid-in-capital	588,131	589,972
Unallocated common stock held by employee stock ownership plan	(16,822)	(17,058)
Retained earnings	389,387	381,361
Accumulated other comprehensive (loss) income	(23,289)	2,063
Treasury stock at cost: 15,860,683 and 15,504,142 shares at March 31, 2022 and December 31, 2021, respectively	(222,657)	(217,103)
Total stockholders’ equity	715,398	739,883
Total liabilities and stockholders’ equity	$ 5,516,290	$ 5,430,542

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 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	5,182	5,475
Debt securities held-to-maturity, allowance for credit loss	$ 0	$ 0
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)	48,910,192	49,266,733
Treasury stock, shares (shares)	15,860,683	15,504,142

Consolidated Statements of Comp

Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest income:
Loans	$ 36,721	$ 41,277
Mortgage-backed securities	2,475	2,959
Other securities	695	424
FHLB of New York dividends	245	370
Deposits in other financial institutions	58	37
Total interest income	40,194	45,067
Interest expense:
Deposits	1,159	1,870
Borrowings	2,166	3,021
Total interest expense	3,325	4,891
Net interest income	36,869	40,176
Provision/(benefit) for credit losses	403	(2,374)
Net interest income after provision/(benefit) for credit losses	36,466	42,550
Non-interest income:
Fees and service charges for customer services	1,331	1,197
Income on bank-owned life insurance	839	848
Gains on available-for-sale debt securities, net	264	97
(Losses)/gains on trading securities, net	(802)	364
Other	81	130
Total non-interest income	1,713	2,636
Non-interest expense:
Compensation and employee benefits	9,507	10,532
Occupancy	3,408	3,701
Furniture and equipment	426	437
Data processing	1,713	1,632
Professional fees	908	906
Advertising	433	465
Federal Deposit Insurance Corporation insurance	357	375
Other	1,957	1,515
Total non-interest expense	18,709	19,563
Income before income tax expense	19,470	25,623
Income tax expense	5,343	6,946
Net income	$ 14,127	$ 18,677
Net income per common share:
Basic (usd per share)	$ 0.30	$ 0.38
Diluted (usd per share)	$ 0.30	$ 0.38
Unrealized losses on debt securities available-for-sale:
Net unrealized holding losses	$ (34,894)	$ (1,144)
Less: reclassification adjustment for net gains included in net income	(264)	(97)
Net unrealized losses	(35,158)	(1,241)
Post-retirement benefits adjustment	(48)	0
Other comprehensive loss, before tax	(35,206)	(1,241)
Income tax benefit related to net unrealized holding losses on debt securities available-for-sale	9,767	321
Income tax expense related to reclassification adjustment for gains included in net income	74	27
Income tax expense related to post retirement benefit adjustment	13	0
Other comprehensive loss, net of tax	(25,352)	(893)
Comprehensive (loss) income	$ (11,225)	$ 17,784

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 StockCumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-in Capital	Additional Paid-in CapitalCumulative 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 PlanCumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings	Retained EarningsCumulative Effect, Period of Adoption, Adjustment	Retained EarningsCumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (loss) Net of tax	Accumulated Other Comprehensive Income (loss) Net of taxCumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock	Treasury StockCumulative Effect, Period of Adoption, Adjusted Balance
Beginning Balance (in shares) at Dec. 31, 2020				52,209,897	52,209,897
Beginning 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	18,677									18,677
Other comprehensive income (loss), net of tax	(893)												(893)
ESOP shares allocated or committed to be released	412					169		243
Stock compensation expense	244					244
Restricted stock issuance (in shares)				147,307
Restricted stock issuance	0					(1,821)									1,821
Restricted stock forfeitures (in shares)				(1,674)
Restricted stock forfeitures	0					26									(26)
Exercise of stock options, net (in shares)				54,990
Exercise of stock options, net	808					64									744
Cash dividends declared and paid	(5,447)									(5,447)
Repurchase of treasury stock (in shares)				(742,323)
Repurchase of treasury stock	(10,130)														(10,130)
Ending Balance (in shares) at Mar. 31, 2021				51,668,197
Ending Balance at Mar. 31, 2021	754,565			$ 648		589,188		(18,286)		348,236			12,267		(177,488)
Beginning Balance (in shares) at Dec. 31, 2021				49,266,733
Beginning 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	14,127									14,127
Other comprehensive income (loss), net of tax	(25,352)												(25,352)
ESOP shares allocated or committed to be released	451					215		236
Stock compensation expense	396					396
Restricted stock issuance (in shares)				157,416
Restricted stock issuance	0					(2,484)									2,484
Restricted stock forfeitures (in shares)				(2,875)
Restricted stock forfeitures	$ 0					40									(40)
Exercise of stock options, net (in shares)	17,040			17,040
Exercise of stock options, net	$ 231					(8)									239
Cash dividends declared and paid	(6,101)									(6,101)
Repurchase of treasury stock (in shares)				(528,122)
Repurchase of treasury stock	(8,237)														(8,237)
Ending Balance (in shares) at Mar. 31, 2022				48,910,192
Ending Balance at Mar. 31, 2022	$ 715,398			$ 648		$ 588,131		$ (16,822)		$ 389,387			$ (23,289)		$ (222,657)

Consolidated Statements of Ch_2

Consolidated Statements of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (usd per share)	$ 0.13	$ 0.11
Dividends paid per share (usd per share)	0.13	0.11
Treasury stock repurchased cost per share (usd per share)	$ 15.60	$ 13.64

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Cash Flows [Abstract]
Net income	$ 14,127	$ 18,677
Adjustments to reconcile net income to net cash provided by operating activities:
Provision/(benefit) for credit losses	403	(2,374)
ESOP and stock compensation expense	847	656
Depreciation	946	972
Amortization of premiums, and deferred loan costs, net of (accretion) discounts, and deferred loan fees	2,608	564
Amortization of intangible assets	53	50
Amortization of operating lease right-of-use assets	1,130	1,079
Income on bank-owned life insurance	(839)	(848)
Net gain on sale of loans held-for-sale	0	(39)
Gains on available-for-sale debt securities, net	(264)	(97)
Losses (gains) on trading securities, net	802	(364)
Net sales of trading securities	503	513
Increase in accrued interest receivable	(19)	(63)
Decrease in other assets	2,604	2,905
Decrease in accrued expenses and other liabilities	(3,303)	(1,433)
Net cash provided by operating activities	19,598	20,198
Cash flows from investing activities:
Net increase in loans receivable	(91,853)	(107,720)
Proceeds from sale of loans held-for-sale	0	23,537
Redemptions of FHLB of New York stock	1,125	0
Purchases of debt securities available-for-sale	(138,982)	(103,743)
Purchases of equity securities	(2,541)	(220)
Principal payments and maturities on debt securities available-for-sale	113,767	152,892
Principal payments and maturities on debt securities held-to-maturity	37	306
Proceeds from sale of debt securities available-for-sale	41,464	5,942
Proceeds from bank-owned life insurance	1,526	0
Purchases and improvements of premises and equipment	(365)	(293)
Net cash used in investing activities	(75,822)	(29,299)
Cash flows from financing activities:
Net increase in deposits	133,532	59,165
Dividends paid	(6,101)	(5,447)
Exercise of stock options	231	808
Purchase of treasury stock	(8,237)	(10,130)
Increase in advance payments by borrowers for taxes and insurance	5,123	4,350
Proceeds from securities sold under agreements to repurchase and other borrowings	1,122	381
Repayments related to securities sold under agreements to repurchase and other borrowings	(25,000)	0
Net cash provided by financing activities	100,670	49,127
Net increase in cash and cash equivalents	44,446	40,026
Cash and cash equivalents at beginning of period	91,068	87,544
Cash and cash equivalents at end of period	135,514	127,570
Cash paid during the period for:
Interest	3,418	5,042
Income taxes	827	496
Non-cash transactions:
Loan charge-offs, net	102	2,389
Transfer of loans held-for-investment to loans held-for-sale at fair value	0	5,215
Transfer of loans held-for-sale at fair value to loans held-for-investment	0	1,612
Transfer of loans held-for-investment to other real estate owned	$ 0	$ 100

Consolidated Financial Statemen

Consolidated Financial Statements	3 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidated Financial Statements	Consolidated Financial Statements Basis of Presentation The consolidated financial statements are comprised of the accounts of Northfield Bancorp, Inc. and its wholly owned subsidiaries, Northfield Investments, Inc. and Northfield Bank (the “Bank”), and the Bank’s wholly-owned subsidiaries, NSB Services Corp. and NSB Realty Trust (collectively the “Company”). All significant intercompany accounts and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting solely of normal and recurring adjustments) necessary for the fair presentation of the consolidated balance sheets and the consolidated statements of comprehensive income for the unaudited periods presented have been included. The results of operations and other data presented for the three months ended March 31, 2022 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2022 or for any other period. Whenever necessary, certain prior year amounts are reclassified to conform to the current year presentation. In preparing the unaudited consolidated financial statements in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”), management has made estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated balance sheets and for the periods indicated in the consolidated statements of comprehensive income. Material estimates that are particularly susceptible to change are: the allowance for credit losses, estimated cash flows of our purchased credit-deteriorated (“PCD”, or, previously, purchased credit-impaired “PCI”) loans and the valuation allowance against deferred tax assets. Estimates and assumptions are reviewed periodically and the effects of revisions are reflected in the consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual amounts or results could differ significantly from those estimates.

Debt Securities Available-for-S

Debt Securities Available-for-Sale	3 Months Ended
	Mar. 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 March 31, 2022, and December 31, 2021 (in thousands): March 31, 2022 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 76,572 $ — $ (952) $ 75,620 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 584,788 1,339 (21,737) 564,390 Real estate mortgage investment conduits ("REMICs"): GSE 317,373 100 (6,370) 311,103 902,161 1,439 (28,107) 875,493 Other debt securities: Municipal bonds 52 — — 52 Corporate bonds 207,929 75 (4,892) 203,112 207,981 75 (4,892) 203,164 Total debt securities available-for-sale $ 1,186,714 $ 1,514 $ (33,951) $ 1,154,277 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 March 31, 2022 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 118,900 $ 117,947 Due after one year through five years 164,080 159,377 Due after five years through ten years 1,573 1,460 $ 284,553 $ 278,784 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 debt 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 March 31, 2022 and December 31, 2021, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $546.4 million and $522.1 million, respectively. For the three months ended March 31, 2022, the Company had gross proceeds of $41.5 million on sales and calls of debt securities available-for-sale, with gross realized gains of $264,000 related to the sales of securities and no gross realized losses. For the three months ended March 31, 2021, the Company had gross proceeds of $5.9 million on sales and calls of debt securities available-for-sale, with gross realized gains of $97,000 related to sales of securities and no gross realized losses. The Company recognized net losses of $802,000 on its trading securities portfolio during the three months ended March 31, 2022, and net gains of $364,000 during the three months ended March 31, 2021. 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 March 31, 2022 and December 31, 2021, were as follows (in thousands): March 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 $ (839) $ 74,161 $ (113) $ 1,459 $ (952) $ 75,620 Mortgage-backed securities: Pass-through certificates: GSE (21,102) 456,299 (635) 12,716 (21,737) 469,015 REMICs: GSE (3,531) 211,385 (2,839) 66,845 (6,370) 278,230 Other debt securities: Corporate bonds (3,738) 158,396 (1,154) 13,856 (4,892) 172,252 Total $ (29,210) $ 900,241 $ (4,741) $ 94,876 $ (33,951) $ 995,117 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 17 pass-through mortgage-backed securities issued or guaranteed by GSEs, 29 REMIC mortgage-backed securities issued or guaranteed by GSEs, two corporate bonds, and one U.S. Government agency security that were in a continuous unrealized loss position of twelve months or greater at March 31, 2022. There were 58 pass-through mortgage-backed securities issued or guaranteed by GSEs, 53 REMIC mortgage-backed securities issued or guaranteed by GSEs, 25 corporate bonds and four U.S. Government agency securities that were in an unrealized loss position of less than twelve months at March 31, 2022. All securities referred to above were rated investment grade at March 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 as of March 31, 2022 or December 31, 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 the 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.

Debt Securities Held-to-Maturit

Debt Securities Held-to-Maturity	3 Months Ended
	Mar. 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 March 31, 2022 and December 31, 2021 (in thousands): March 31, 2022 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSE $ 5,243 $ 14 $ (75) $ 5,182 Total securities held-to-maturity $ 5,243 $ 14 $ (75) $ 5,182 December 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSE $ 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 three months ended March 31, 2022 or March 31, 2021. At both March 31, 2022 and December 31, 2021, debt securities held-to-maturity with a carrying value of $2.1 million were pledged to secure borrowings and deposits. 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 March 31, 2022 were as follows (in thousands): March 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 $ (75) $ 3,814 $ — $ — $ (75) $ 3,814 Total $ (75) $ 3,814 $ — $ — $ (75) $ 3,814 The Company held five 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 March 31, 2022 and no held-to-maturity securities in an unrealized loss position of greater than twelve months at March 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 $16,000 at both March 31, 2022 and December 31, 2021 was reported in accrued interest receivable on the consolidated balance sheet.

Equity Securities

Equity Securities	3 Months Ended
	Mar. 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 March 31, 2022, and December 31, 2021 (in thousands): March 31, 2022 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 76,572 $ — $ (952) $ 75,620 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 584,788 1,339 (21,737) 564,390 Real estate mortgage investment conduits ("REMICs"): GSE 317,373 100 (6,370) 311,103 902,161 1,439 (28,107) 875,493 Other debt securities: Municipal bonds 52 — — 52 Corporate bonds 207,929 75 (4,892) 203,112 207,981 75 (4,892) 203,164 Total debt securities available-for-sale $ 1,186,714 $ 1,514 $ (33,951) $ 1,154,277 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 March 31, 2022 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 118,900 $ 117,947 Due after one year through five years 164,080 159,377 Due after five years through ten years 1,573 1,460 $ 284,553 $ 278,784 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 debt 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 March 31, 2022 and December 31, 2021, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $546.4 million and $522.1 million, respectively. For the three months ended March 31, 2022, the Company had gross proceeds of $41.5 million on sales and calls of debt securities available-for-sale, with gross realized gains of $264,000 related to the sales of securities and no gross realized losses. For the three months ended March 31, 2021, the Company had gross proceeds of $5.9 million on sales and calls of debt securities available-for-sale, with gross realized gains of $97,000 related to sales of securities and no gross realized losses. The Company recognized net losses of $802,000 on its trading securities portfolio during the three months ended March 31, 2022, and net gains of $364,000 during the three months ended March 31, 2021. 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 March 31, 2022 and December 31, 2021, were as follows (in thousands): March 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 $ (839) $ 74,161 $ (113) $ 1,459 $ (952) $ 75,620 Mortgage-backed securities: Pass-through certificates: GSE (21,102) 456,299 (635) 12,716 (21,737) 469,015 REMICs: GSE (3,531) 211,385 (2,839) 66,845 (6,370) 278,230 Other debt securities: Corporate bonds (3,738) 158,396 (1,154) 13,856 (4,892) 172,252 Total $ (29,210) $ 900,241 $ (4,741) $ 94,876 $ (33,951) $ 995,117 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 17 pass-through mortgage-backed securities issued or guaranteed by GSEs, 29 REMIC mortgage-backed securities issued or guaranteed by GSEs, two corporate bonds, and one U.S. Government agency security that were in a continuous unrealized loss position of twelve months or greater at March 31, 2022. There were 58 pass-through mortgage-backed securities issued or guaranteed by GSEs, 53 REMIC mortgage-backed securities issued or guaranteed by GSEs, 25 corporate bonds and four U.S. Government agency securities that were in an unrealized loss position of less than twelve months at March 31, 2022. All securities referred to above were rated investment grade at March 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 as of March 31, 2022 or December 31, 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 the 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.

Loans

Loans	3 Months Ended
	Mar. 31, 2022
Receivables [Abstract]
Loans	Loans The following table summarizes the Company’s loans held-for-investment (in thousands): March 31, December 31, 2022 2021 Real estate loans: Multifamily $ 2,568,784 $ 2,518,065 Commercial mortgage 852,803 808,597 One-to-four family residential mortgage 186,007 183,665 Home equity and lines of credit 125,156 109,956 Construction and land 17,579 27,495 Total real estate loans 3,750,329 3,647,778 Commercial and industrial loans (1) 132,250 141,005 Other loans 1,938 2,015 Total commercial and industrial and other loans 134,188 143,020 Loans held-for-investment, net (excluding PCD) 3,884,517 3,790,798 PCD loans 14,064 15,819 Total loans held-for-investment, net 3,898,581 3,806,617 Allowance for credit losses (39,274) (38,973) Net loans held-for-investment $ 3,859,307 $ 3,767,644 (1) Included in commercial and industrial loans at March 31, 2022 and December 31, 2021 are Payment Protection Program ("PPP") loans totaling $24.3 million and $40.5 million, respectively. The Company had no loans held-for-sale at March 31, 2022 or December 31, 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 $14.1 million at March 31, 2022, as compared to $15.8 million at December 31, 2021. The majority of the PCD loan balance is attributable to those loans acquired as part of a Federal Deposit Insurance Corporation-assisted transaction. At March 31, 2022, PCD loans consisted of approximately 13% home equity loans, 24% commercial real estate loans, 53% commercial and industrial loans, and 10% in one-to-four family residential 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 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. Loan-to-value ( “LTV” ) ratios 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 March 31, 2022 (in thousands): March 31, 2022 2022 2021 2020 2019 2018 Prior Revolving Loans Total Real Estate: Multifamily Pass $ 140,478 $ 707,895 $ 522,329 $ 304,873 $ 232,859 $ 646,767 $ 290 $ 2,555,491 Special mention — — — — — 420 — 420 Substandard — — — 1,716 3,806 7,351 — 12,873 Total multifamily 140,478 707,895 522,329 306,589 236,665 654,538 290 2,568,784 Commercial Pass 72,580 152,133 69,665 96,502 96,635 323,475 2,537 813,527 Special mention — — — — — 8,536 — 8,536 Substandard — 10,804 — 5,000 — 14,936 — 30,740 Total commercial 72,580 162,937 69,665 101,502 96,635 346,947 2,537 852,803 One-to-four family residential Pass 13,915 12,038 8,852 10,103 10,274 123,818 1,030 180,030 Special mention — — — 467 — 2,304 — 2,771 Substandard — — — 509 — 2,697 — 3,206 Total one-to-four family residential 13,915 12,038 8,852 11,079 10,274 128,819 1,030 186,007 Construction and land Pass 1,252 2,209 3,884 2,019 1,971 4,174 — 15,509 Special mention — — — — 2,070 — — 2,070 Total construction and land 1,252 2,209 3,884 2,019 4,041 4,174 — 17,579 Home equity and lines of credit Pass 10,049 17,485 11,660 6,750 5,468 12,542 60,451 124,405 Special mention — 60 — — — 100 — 160 Substandard — — — 95 49 447 — 591 Total home equity and lines of credit 10,049 17,545 11,660 6,845 5,517 13,089 60,451 125,156 Total real estate loans 238,274 902,624 616,390 428,034 353,132 1,147,567 64,308 3,750,329 Commercial and industrial Pass 3,437 30,670 8,372 4,149 1,990 9,511 71,275 129,404 Special mention — — — 160 — 361 50 571 Substandard — — 333 59 199 326 1,358 2,275 Total commercial and industrial 3,437 30,670 8,705 4,368 2,189 10,198 72,683 132,250 Other Pass 1,657 — 147 15 20 39 60 1,938 Total other 1,657 — 147 15 20 39 60 1,938 Total loans held-for-investment, net $ 243,368 $ 933,294 $ 625,242 $ 432,417 $ 355,341 $ 1,157,804 $ 137,051 $ 3,884,517 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 $8.1 million and $7.6 million at March 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 $4.2 million at each of March 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 $3.9 million at March 31, 2022, and $3.4 million at December 31, 2021. Loans past due 90 days or more and still accruing interest were $59,000 and $384,000 at March 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 March 31, 2022, and December 31, 2021, excluding PCD loans (in thousands): March 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 $ — $ 279 $ 1,574 $ 1,853 $ — $ 1,853 Total multifamily — 279 1,574 1,853 — 1,853 Commercial Substandard 2,859 71 2,450 5,380 37 5,417 Total commercial 2,859 71 2,450 5,380 37 5,417 One-to-four family residential Substandard — — 312 312 6 318 Total one-to-four family residential — — 312 312 6 318 Home equity and lines of credit Substandard — — 279 279 — 279 Total home equity and lines of credit — — 279 279 — 279 Total real estate 2,859 350 4,615 7,824 43 7,867 Commercial and industrial loans Substandard — — 278 278 16 294 Total commercial and industrial loans — — 278 278 16 294 Total non-performing loans $ 2,859 $ 350 $ 4,893 $ 8,102 $ 59 $ 8,161 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 March 31, 2022, and December 31, 2021 (in thousands): March 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 $ — $ — $ — $ — $ 2,555,491 $ 2,555,491 Special mention — — — — 420 420 Substandard 3,083 1,574 — 4,657 8,216 12,873 Total multifamily 3,083 1,574 — 4,657 2,564,127 2,568,784 Commercial Pass — — — — 813,527 813,527 Special mention 66 — — 66 8,470 8,536 Substandard 309 2,450 37 2,796 27,944 30,740 Total commercial 375 2,450 37 2,862 849,941 852,803 One-to-four family residential Pass 325 — — 325 179,705 180,030 Special mention 73 — — 73 2,698 2,771 Substandard 156 312 6 474 2,732 3,206 Total one-to-four family residential 554 312 6 872 185,135 186,007 Home equity and lines of credit Pass 110 — — 110 124,295 124,405 Special mention 60 — — 60 100 160 Substandard 95 279 — 374 217 591 Total home equity and lines of credit 265 279 — 544 124,612 125,156 Construction and land Pass — — — — 15,509 15,509 Special mention — — — — 2,070 2,070 Total construction and land — — — — 17,579 17,579 Total real estate 4,277 4,615 43 8,935 3,741,394 3,750,329 Commercial and industrial Pass 129 — — 129 129,275 129,404 Special mention 12 — — 12 559 571 Substandard — 278 16 294 1,981 2,275 Total commercial and industrial 141 278 16 435 131,815 132,250 Other loans Pass 16 — — 16 1,922 1,938 Total other loans 16 — — 16 1,922 1,938 Total loans held-for-investment $ 4,434 $ 4,893 $ 59 $ 9,386 $ 3,875,131 $ 3,884,517 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, as of March 31, 2022 and December 31, 2021 (in thousands): March 31, 2022 Recorded Investment Unpaid Principal Balance With No Related Allowance Real estate loans: Multifamily $ 1,853 $ 1,862 $ 500 Commercial 5,380 7,577 3,702 One-to-four family residential 312 343 — Home equity and lines of credit 279 529 — Commercial and industrial 278 667 — Total non-accrual loans $ 8,102 $ 10,978 $ 4,202 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 three months ended March 31, 2022 and March 31, 2021. Three Months Ended March 31, 2022 2021 Real estate loans: Multifamily $ 24 $ 14 Commercial 12 25 One-to-four family residential 3 6 Home equity and lines of credit — 2 Commercial and industrial 1 2 Total interest income on non-accrual loans $ 40 $ 49 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 March 31, 2022 and December 31, 2021, the Company had $7.3 million and $7.4 million of collateral-dependent impaired loans, respectively. The collateral-dependent loans at March 31, 2022 consisted of $5.8 million of commercial real estate loans, $1.1 million of multifamily loans, and $357,000 of one-to-four family residential loans. For the three months ended March 31, 2022, there was no significant deterioration or changes in the collateral securing these loans. Troubled Debt Restructured Loan There were no loans modified as a TDR during the three months ended March 31, 2022 or 2021. In response to the COVID-19 pandemic and its economic impact to customers, a short-term modification program that complied with Section 4013 of the CARES Act and the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus was implemented to provide temporary payment relief to those borrowers directly impacted by COVID-19. The program allows for deferral of payments for 90 days, which may extend for an additional 90 day period, with modifications in the form of payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment. As of March 31, 2022, substantially all of the borrowers who had requested relief have returned to contractual payments. Loans in deferment status (“COVID-19 Modified Loans”) have continued to accrue interest during the deferment period unless otherwise classified as non-performing. COVID-19 Modified Loans are required to make escrow payments for real estate taxes and insurance, if applicable. The COVID-19 Modified Loan agreements also require loans to be brought back to their fully contractual terms within 12 to 18 months and include covenants that prohibit distributions, bonuses, or payments of management fees to related entities until all deferred payments are made. Consistent with industry regulatory guidance, borrowers who were otherwise current on loan payments and were granted COVID-19 related financial hardship payment deferrals will continue to be reported as current loans throughout the agreed upon deferral period. Borrowers who were delinquent in their payments to the Bank prior to requesting a COVID-19 related financial hardship payment deferral are reviewed on a case by case basis for TDR classification and non-performing loan status. At March 31, 2022 and December 31, 2021, the Company had TDRs of $8.6 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	3 Months Ended
	Mar. 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 March 31, 2022 and December 31, 2021, the ACL for loans individually evaluated for impairment was $46,200 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 (in thousands): Three Months Ended Balance at beginning of period $ 1,852 Provision for credit losses 279 Balance at end of period $ 2,131 The following tables set forth activity in our allowance for credit losses on loans, by loan type, as of, and for the three months ended March 31, 2022, and March 31, 2021 (in thousands): Three Months Ended March 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 — — — — (185) — (185) — (185) Recoveries 78 — — — 5 — 83 — 83 Provisions (credit) 384 44 119 (3) (39) — 505 (102) 403 Ending balance $ 27,247 $ 3,589 $ 679 $ 166 $ 2,954 $ 9 $ 34,644 $ 4,630 $ 39,274 Three Months Ended March 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) — — — — — (21) (2,411) (2,432) Recoveries 19 1 — — 21 2 43 — 43 Provisions (credit) (2,172) (269) (36) (24) 130 (3) (2,374) — (2,374) Ending balance $ 28,882 $ 5,172 $ 643 $ 269 $ 2,940 $ 9 $ 37,915 $ 5,282 $ 43,197 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. The following tables 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 the allowance for credit losses that is allocated to each loan portfolio segment, at March 31, 2022 and December 31, 2021 (in thousands): March 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: Ending balance: individually evaluated for impairment $ 25 $ — $ 3 $ — $ 18 $ — $ 46 $ — $ 46 Ending balance: collectively evaluated for impairment 27,222 3,589 676 166 2,936 9 34,598 — 34,598 Ending balance: PCD loans evaluated for impairment (2) — — — — — — — 4,630 4,630 Loans, net: Ending balance $ 3,421,587 $ 186,007 $ 125,156 $ 17,579 $ 132,250 $ 1,938 $ 3,884,517 $ 14,064 $ 3,898,581 Ending balance: individually evaluated for impairment 8,094 1,369 35 — 101 9,599 — 9,599 Ending balance: collectively evaluated for impairment 3,413,493 184,638 125,121 17,579 107,800 1,938 3,850,569 — 3,850,569 Ending balance: PCD loans evaluated for impairment (2) — — — — — — — 14,064 14,064 PPP loans not evaluated for impairment (3) — — — — 24,349 — 24,349 — 24,349 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: 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.

Deposits

Deposits	3 Months Ended
	Mar. 31, 2022
Deposits [Abstract]
Deposits	Deposits Deposit account balances are summarized as follows (in thousands): March 31, 2022 December 31, 2021 Non-interest-bearing checking $ 944,096 $ 898,490 Negotiable orders of withdrawal ("NOW") and interest-bearing checking 1,231,377 1,112,292 Savings and money market 1,768,629 1,776,191 Certificates of deposit 358,764 382,361 Total deposits $ 4,302,866 $ 4,169,334 Interest expense on deposit accounts is summarized for the periods indicated (in thousands): Three Months Ended March 31, 2022 2021 NOW and interest-bearing checking, savings, and money market $ 571 $ 932 Certificates of deposit 588 938 Total interest expense on deposit accounts $ 1,159 $ 1,870

Equity Incentive Plans

Equity Incentive Plans	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Equity Incentive Plans	Equity Incentive Plans The following table is a summary of the Company’s stock options outstanding as of March 31, 2022, and changes therein during the three months then ended. Number of Stock Options Weighted Average Grant Date Fair Value Weighted Average Exercise Price Weighted Average Contractual Life (years) Outstanding - December 31, 2021 1,769,979 $ 4.02 $ 13.95 2.95 Exercised (17,040) 3.95 13.54 — Outstanding - March 31, 2022 1,752,939 4.02 13.96 2.71 Exercisable - March 31, 2022 1,752,939 4.02 13.96 2.71 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 December 31, 2024. At the end of the performance period, the number of actual shares to be awarded may vary between 0% and 120% of target amounts. The following is a summary of the status of the Company’s restricted stock awards at March 31, 2022, and changes therein during the three months then ended. Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2021 222,844 $ 13.21 Granted 181,908 15.78 Vested (62,836) 12.87 Forfeited (2,875) 14.00 Non-vested at March 31, 2022 339,041 14.65 Expected future stock award expense related to the non-vested restricted share awards as of March 31, 2022, is $4.4 million over a weighted average period of 2.8 years. During the three months ended March 31, 2022 and March 31, 2021, the Company recorded $396,000 and $243,000, respectively, of stock-based compensation related to the above plan.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The following tables present the assets reported on the consolidated balance sheets at their estimated fair value as of March 31, 2022, and December 31, 2021, by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the FASB 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. The methods of determining the fair value of assets and liabilities presented in this note are consistent with our methodologies disclosed in Note 16 to the Consolidated Financial Statements of the Company’s 2021 Annual Report on Form 10-K. Fair Value Measurements at March 31, 2022 Using: Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (in thousands) Measured on a recurring basis: Assets: Investment securities: Debt securities available-for-sale: U.S. Government agency $ 75,620 $ — $ 75,620 $ — Mortgage-backed securities: Pass-through certificates: GSE 564,390 — 564,390 — REMICs: GSE 311,103 — 311,103 — 875,493 — 875,493 — Other debt securities: Municipal bonds 52 — 52 — Corporate bonds 203,112 — 203,112 — 203,164 — 203,164 — Total debt securities available-for-sale 1,154,277 — 1,154,277 — Trading securities 12,156 12,156 — — Equity securities (1) 368 368 — — Total $ 1,166,801 $ 12,524 $ 1,154,277 $ — Measured on a non-recurring basis: Assets: Loans individually evaluated for impairment: Real estate loans: Commercial real estate $ 3,401 $ — $ — $ 3,401 Home equity and lines of credit 26 — — 26 Total individually evaluated real estate loans 3,427 — — 3,427 Commercial and industrial loans 64 — — 64 Other real estate owned 100 — — 100 Total $ 3,591 $ — $ — $ 3,591 (1) Excludes investment measured at net asset value of $7.5 million at March 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 Inputs (Level 2) Significant Unobservable Inputs (Level 3) (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 certificates: 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 March 31, 2022 and December 31, 2021 (dollars in thousands): Fair Value Valuation Methodology Unobservable Range of Inputs March 31, 2022 December 31, 2021 March 31, 2022 December 31, 2021 Individually evaluated loans $ 3,491 $ 3,807 Appraisals Discount for costs to sell 7.0% 7.0% Discount for quick sale 10.0% 10.0% Discounted cash flows Interest rates 4.88% to 7.50% 4.88% to 6.25% Other real estate owned 100 100 Appraisals Discount for costs to sell 7.0% 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 at March 31, 2022, and December 31, 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 three months ended March 31, 2022 or March 31, 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 March 31, 2022 and December 31, 2021, the Company had loans individually evaluated for impairment (excluding PCD loans) with outstanding principal balances of $5.5 million and $5.8 million, respectively, which were recorded at their estimated fair value of $3.5 million and $3.8 million, respectively. The Company recorded a net increase in the specific reserve for impaired loans of $16,000 and $3,000 for the three months ended March 31, 2022 and March 31, 2021, respectively. Net charge-offs of $102,000 and $2.4 million were recorded for the three months ended March 31, 2022 and March 31, 2021, respectively, 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 March 31, 2022, the Company had assets acquired through foreclosure of approximately $100,000, recorded at estimated fair value, less estimated selling costs when acquired, thus establishing a new cost basis. 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 nonrecurring 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) Federal Home Loan Bank of New York Stock The fair value for Federal Home Loan Bank of New York ("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 March 31, 2022 and December 31, 2021, are presented in the following tables (in thousands): March 31, 2022 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 135,514 $ 135,514 $ — $ — $ 135,514 Trading securities 12,156 12,156 — — 12,156 Debt securities available-for-sale 1,154,277 — 1,154,277 — 1,154,277 Debt securities held-to-maturity 5,243 — 5,182 — 5,182 Equity securities (1) 368 368 — — 368 FHLBNY stock, at cost 21,211 — 21,211 — 21,211 Net loans held-for-investment 3,859,307 — — 3,838,452 3,838,452 Derivative assets 2,643 — 2,643 — 2,643 Financial liabilities: Deposits $ 4,302,866 $ — $ 4,305,018 $ — $ 4,305,018 Borrowed funds 397,877 — 391,323 — 391,323 Advance payments by borrowers for taxes and insurance 30,032 — 30,032 — 30,032 Derivative liabilities 2,645 — 2,645 — 2,645 (1) Excludes investment measured at net asset value of $7.5 million at March 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 Borrowed funds 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	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share is computed by dividing net income available to common stockholders by the weighted average number of shares outstanding during the period. For purposes of calculating basic earnings per share, weighted average common shares outstanding excludes unallocated employee stock ownership plan (“ESOP”) shares that have not been committed for release and unvested restricted stock. Diluted earnings per share is computed using the same method as basic earnings per share, but reflects the potential dilution that could occur if stock options were exercised and converted into common stock and unvested shares of restricted stock vested. These potentially dilutive shares are then included in the weighted average number of shares outstanding for the period using the treasury stock method. When applying the treasury stock method we added the assumed proceeds from option exercises and the average unamortized compensation costs related to unvested shares of restricted stock and stock options. We then divided this sum by our average stock price for the period to calculate assumed shares repurchased. The excess of the number of shares issuable over the number of shares assumed to be repurchased is added to basic weighted average common shares to calculate diluted 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 per share data): Three Months Ended March 31, 2022 2021 Net income available to common stockholders $ 14,127 $ 18,677 Weighted average shares outstanding-basic 46,811,331 49,528,419 Effect of non-vested restricted stock and stock options outstanding 277,044 105,225 Weighted average shares outstanding-diluted 47,088,375 49,633,644 Earnings per share-basic $ 0.30 $ 0.38 Earnings per share-diluted $ 0.30 $ 0.38 Anti-dilutive shares 273,469 1,002,377

Leases

Leases	3 Months Ended
	Mar. 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 33.25 years. At March 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 on 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 March 31, 2022, the Company’s operating lease right-of-use assets and operating lease liabilities included on the consolidated balance sheet were $32.8 million and $38.6 million, respectively. At December 31, 2021, the Company’s operating lease right-of-use assets and operating lease liabilities included on 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 on the consolidated statements of comprehensive income. Supplemental lease information at or for the three months ended March 31, 2022, and March 31, 2021 is as follows (dollars in thousands): Three Months Ended March 31, 2022 2021 Operating lease cost $ 1,469 $ 1,455 Variable lease cost 965 1,235 Net lease cost $ 2,434 $ 2,690 Cash paid for amounts included in measurement of operating lease liabilities $ 1,564 $ 1,708 Right-of-use assets obtained in exchange for new operating lease liabilities $ — $ — Weighted average remaining lease term 11.81 years 12.26 years Weighted average discount rate 3.56 % 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 (in thousands): Year Amount 2022 $ 4,318 2023 5,802 2024 5,372 2025 5,024 2026 4,253 Thereafter 24,128 Total lease payments 48,897 Less: imputed interest 10,287 Present value of lease liabilities $ 38,610 As of March 31, 2022, the Company had entered into two lease agreements that have not yet commenced. The leases are related to two branches that are being relocated. Each lease has an original term of 10 years with undiscounted cash payments of approximately $4.2 million.

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The Company records revenue from contracts with customers in accordance with Accounting Standards Update 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 three months ended March 31, 2022, other income primarily included rental income from subleasing one of the Company's branches to a third party and loan servicing fees. For the three months ended March 31, 2021, other income primarily included rental income from subleasing one of the Company's branches to a third party and gains on the sale or payoff of loans. The following table summarizes non-interest income for the periods indicated (in thousands): Three Months Ended March 31, 2022 2021 Fees and service charges for customer services: Service charges $ 760 $ 720 ATM and card interchange fees 455 399 Investment fees 116 78 Total fees and service charges for customer services 1,331 1,197 Income on bank-owned life insurance (1) 839 848 Gains on available-for-sale debt securities, net (1) 264 97 (Losses)/gains on trading securities, net (1) (802) 364 Other 81 130 Total non-interest income $ 1,713 $ 2,636 (1) Not in scope of Topic 606

Derivatives

Derivatives	3 Months Ended
	Mar. 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 executes 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 March 31, 2022, the Company had seven interest rate swaps with a notional amount of $37.8 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 three months ended March 31, 2022 and 2021. The table below presents the fair value of the derivatives as well as their location on the consolidated balance sheets (in thousands): Fair Value Balance Sheet Location March 31, 2022 December 31, 2021 Other assets $ 2,643 $ 923 Other liabilities 2,645 925

Consolidated Financial Statem_2

Consolidated Financial Statements (Policies)	3 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The consolidated financial statements are comprised of the accounts of Northfield Bancorp, Inc. and its wholly owned subsidiaries, Northfield Investments, Inc. and Northfield Bank (the “Bank”), and the Bank’s wholly-owned subsidiaries, NSB Services Corp. and NSB Realty Trust (collectively the “Company”). All significant intercompany accounts and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting solely of normal and recurring adjustments) necessary for the fair presentation of the consolidated balance sheets and the consolidated statements of comprehensive income for the unaudited periods presented have been included. The results of operations and other data presented for the three months ended March 31, 2022 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2022 or for any other period. Whenever necessary, certain prior year amounts are reclassified to conform to the current year presentation. In preparing the unaudited consolidated financial statements in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”), management has made estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated balance sheets and for the periods indicated in the consolidated statements of comprehensive income. Material estimates that are particularly susceptible to change are: the allowance for credit losses, estimated cash flows of our purchased credit-deteriorated (“PCD”, or, previously, purchased credit-impaired “PCI”) loans and the valuation allowance against deferred tax assets. Estimates and assumptions are reviewed periodically and the effects of revisions are reflected in the consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual amounts or results could differ significantly from those estimates.
Fair Value Measurements	The following tables present the assets reported on the consolidated balance sheets at their estimated fair value as of March 31, 2022, and December 31, 2021, by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the FASB 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	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) Federal Home Loan Bank of New York Stock The fair value for Federal Home Loan Bank of New York ("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.
Earnings Per Share	Basic earnings per share is computed by dividing net income available to common stockholders by the weighted average number of shares outstanding during the period. For purposes of calculating basic earnings per share, weighted average common shares outstanding excludes unallocated employee stock ownership plan (“ESOP”) shares that have not been committed for release and unvested restricted stock.Diluted earnings per share is computed using the same method as basic earnings per share, but reflects the potential dilution that could occur if stock options were exercised and converted into common stock and unvested shares of restricted stock vested. These potentially dilutive shares are then included in the weighted average number of shares outstanding for the period using the treasury stock method. When applying the treasury stock method we added the assumed proceeds from option exercises and the average unamortized compensation costs related to unvested shares of restricted stock and stock options. We then divided this sum by our average stock price for the period to calculate assumed shares repurchased. The excess of the number of shares issuable over the number of shares assumed to be repurchased is added to basic weighted average common shares to calculate diluted earnings per share.

Debt Securities Available-for_2

Debt Securities Available-for-Sale (Tables)	3 Months Ended
	Mar. 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 March 31, 2022, and December 31, 2021 (in thousands): March 31, 2022 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 76,572 $ — $ (952) $ 75,620 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 584,788 1,339 (21,737) 564,390 Real estate mortgage investment conduits ("REMICs"): GSE 317,373 100 (6,370) 311,103 902,161 1,439 (28,107) 875,493 Other debt securities: Municipal bonds 52 — — 52 Corporate bonds 207,929 75 (4,892) 203,112 207,981 75 (4,892) 203,164 Total debt securities available-for-sale $ 1,186,714 $ 1,514 $ (33,951) $ 1,154,277 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 March 31, 2022 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 118,900 $ 117,947 Due after one year through five years 164,080 159,377 Due after five years through ten years 1,573 1,460 $ 284,553 $ 278,784
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 March 31, 2022 and December 31, 2021, were as follows (in thousands): March 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 $ (839) $ 74,161 $ (113) $ 1,459 $ (952) $ 75,620 Mortgage-backed securities: Pass-through certificates: GSE (21,102) 456,299 (635) 12,716 (21,737) 469,015 REMICs: GSE (3,531) 211,385 (2,839) 66,845 (6,370) 278,230 Other debt securities: Corporate bonds (3,738) 158,396 (1,154) 13,856 (4,892) 172,252 Total $ (29,210) $ 900,241 $ (4,741) $ 94,876 $ (33,951) $ 995,117 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 March 31, 2022 were as follows (in thousands): March 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 $ (75) $ 3,814 $ — $ — $ (75) $ 3,814 Total $ (75) $ 3,814 $ — $ — $ (75) $ 3,814

Debt Securities Held-to-Matur_2

Debt Securities Held-to-Maturity (Tables)	3 Months Ended
	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Securities Held-to-Maturity	The following is a summary of mortgage-backed securities held-to-maturity at March 31, 2022 and December 31, 2021 (in thousands): March 31, 2022 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSE $ 5,243 $ 14 $ (75) $ 5,182 Total securities held-to-maturity $ 5,243 $ 14 $ (75) $ 5,182 December 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSE $ 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 March 31, 2022 and December 31, 2021, were as follows (in thousands): March 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 $ (839) $ 74,161 $ (113) $ 1,459 $ (952) $ 75,620 Mortgage-backed securities: Pass-through certificates: GSE (21,102) 456,299 (635) 12,716 (21,737) 469,015 REMICs: GSE (3,531) 211,385 (2,839) 66,845 (6,370) 278,230 Other debt securities: Corporate bonds (3,738) 158,396 (1,154) 13,856 (4,892) 172,252 Total $ (29,210) $ 900,241 $ (4,741) $ 94,876 $ (33,951) $ 995,117 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 March 31, 2022 were as follows (in thousands): March 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 $ (75) $ 3,814 $ — $ — $ (75) $ 3,814 Total $ (75) $ 3,814 $ — $ — $ (75) $ 3,814

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2022
Receivables [Abstract]
Net Loans Held-for-Investment	The following table summarizes the Company’s loans held-for-investment (in thousands): March 31, December 31, 2022 2021 Real estate loans: Multifamily $ 2,568,784 $ 2,518,065 Commercial mortgage 852,803 808,597 One-to-four family residential mortgage 186,007 183,665 Home equity and lines of credit 125,156 109,956 Construction and land 17,579 27,495 Total real estate loans 3,750,329 3,647,778 Commercial and industrial loans (1) 132,250 141,005 Other loans 1,938 2,015 Total commercial and industrial and other loans 134,188 143,020 Loans held-for-investment, net (excluding PCD) 3,884,517 3,790,798 PCD loans 14,064 15,819 Total loans held-for-investment, net 3,898,581 3,806,617 Allowance for credit losses (39,274) (38,973) Net loans held-for-investment $ 3,859,307 $ 3,767,644 (1) Included in commercial and industrial loans at March 31, 2022 and December 31, 2021 are Payment Protection Program ("PPP") loans totaling $24.3 million and $40.5 million, respectively.
Schedule of Loans Held-for-Investment, Excluding PCD Loans, Net of Deferred Fees and Costs	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 March 31, 2022 (in thousands): March 31, 2022 2022 2021 2020 2019 2018 Prior Revolving Loans Total Real Estate: Multifamily Pass $ 140,478 $ 707,895 $ 522,329 $ 304,873 $ 232,859 $ 646,767 $ 290 $ 2,555,491 Special mention — — — — — 420 — 420 Substandard — — — 1,716 3,806 7,351 — 12,873 Total multifamily 140,478 707,895 522,329 306,589 236,665 654,538 290 2,568,784 Commercial Pass 72,580 152,133 69,665 96,502 96,635 323,475 2,537 813,527 Special mention — — — — — 8,536 — 8,536 Substandard — 10,804 — 5,000 — 14,936 — 30,740 Total commercial 72,580 162,937 69,665 101,502 96,635 346,947 2,537 852,803 One-to-four family residential Pass 13,915 12,038 8,852 10,103 10,274 123,818 1,030 180,030 Special mention — — — 467 — 2,304 — 2,771 Substandard — — — 509 — 2,697 — 3,206 Total one-to-four family residential 13,915 12,038 8,852 11,079 10,274 128,819 1,030 186,007 Construction and land Pass 1,252 2,209 3,884 2,019 1,971 4,174 — 15,509 Special mention — — — — 2,070 — — 2,070 Total construction and land 1,252 2,209 3,884 2,019 4,041 4,174 — 17,579 Home equity and lines of credit Pass 10,049 17,485 11,660 6,750 5,468 12,542 60,451 124,405 Special mention — 60 — — — 100 — 160 Substandard — — — 95 49 447 — 591 Total home equity and lines of credit 10,049 17,545 11,660 6,845 5,517 13,089 60,451 125,156 Total real estate loans 238,274 902,624 616,390 428,034 353,132 1,147,567 64,308 3,750,329 Commercial and industrial Pass 3,437 30,670 8,372 4,149 1,990 9,511 71,275 129,404 Special mention — — — 160 — 361 50 571 Substandard — — 333 59 199 326 1,358 2,275 Total commercial and industrial 3,437 30,670 8,705 4,368 2,189 10,198 72,683 132,250 Other Pass 1,657 — 147 15 20 39 60 1,938 Total other 1,657 — 147 15 20 39 60 1,938 Total loans held-for-investment, net $ 243,368 $ 933,294 $ 625,242 $ 432,417 $ 355,341 $ 1,157,804 $ 137,051 $ 3,884,517 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 March 31, 2022, and December 31, 2021, excluding PCD loans (in thousands): March 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 $ — $ 279 $ 1,574 $ 1,853 $ — $ 1,853 Total multifamily — 279 1,574 1,853 — 1,853 Commercial Substandard 2,859 71 2,450 5,380 37 5,417 Total commercial 2,859 71 2,450 5,380 37 5,417 One-to-four family residential Substandard — — 312 312 6 318 Total one-to-four family residential — — 312 312 6 318 Home equity and lines of credit Substandard — — 279 279 — 279 Total home equity and lines of credit — — 279 279 — 279 Total real estate 2,859 350 4,615 7,824 43 7,867 Commercial and industrial loans Substandard — — 278 278 16 294 Total commercial and industrial loans — — 278 278 16 294 Total non-performing loans $ 2,859 $ 350 $ 4,893 $ 8,102 $ 59 $ 8,161 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 March 31, 2022, and December 31, 2021 (in thousands): March 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 $ — $ — $ — $ — $ 2,555,491 $ 2,555,491 Special mention — — — — 420 420 Substandard 3,083 1,574 — 4,657 8,216 12,873 Total multifamily 3,083 1,574 — 4,657 2,564,127 2,568,784 Commercial Pass — — — — 813,527 813,527 Special mention 66 — — 66 8,470 8,536 Substandard 309 2,450 37 2,796 27,944 30,740 Total commercial 375 2,450 37 2,862 849,941 852,803 One-to-four family residential Pass 325 — — 325 179,705 180,030 Special mention 73 — — 73 2,698 2,771 Substandard 156 312 6 474 2,732 3,206 Total one-to-four family residential 554 312 6 872 185,135 186,007 Home equity and lines of credit Pass 110 — — 110 124,295 124,405 Special mention 60 — — 60 100 160 Substandard 95 279 — 374 217 591 Total home equity and lines of credit 265 279 — 544 124,612 125,156 Construction and land Pass — — — — 15,509 15,509 Special mention — — — — 2,070 2,070 Total construction and land — — — — 17,579 17,579 Total real estate 4,277 4,615 43 8,935 3,741,394 3,750,329 Commercial and industrial Pass 129 — — 129 129,275 129,404 Special mention 12 — — 12 559 571 Substandard — 278 16 294 1,981 2,275 Total commercial and industrial 141 278 16 435 131,815 132,250 Other loans Pass 16 — — 16 1,922 1,938 Total other loans 16 — — 16 1,922 1,938 Total loans held-for-investment $ 4,434 $ 4,893 $ 59 $ 9,386 $ 3,875,131 $ 3,884,517 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
Schedule of Non-accrual Loans, Excluding PCD Loans	The following tables summarize information on non-accrual loans, excluding PCD loans, as of March 31, 2022 and December 31, 2021 (in thousands): March 31, 2022 Recorded Investment Unpaid Principal Balance With No Related Allowance Real estate loans: Multifamily $ 1,853 $ 1,862 $ 500 Commercial 5,380 7,577 3,702 One-to-four family residential 312 343 — Home equity and lines of credit 279 529 — Commercial and industrial 278 667 — Total non-accrual loans $ 8,102 $ 10,978 $ 4,202 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 three months ended March 31, 2022 and March 31, 2021. Three Months Ended March 31, 2022 2021 Real estate loans: Multifamily $ 24 $ 14 Commercial 12 25 One-to-four family residential 3 6 Home equity and lines of credit — 2 Commercial and industrial 1 2 Total interest income on non-accrual loans $ 40 $ 49

Allowance for Credit Losses (_2

Allowance for Credit Losses (“ACL”) on Loans (Tables)	3 Months Ended
	Mar. 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 (in thousands): Three Months Ended Balance at beginning of period $ 1,852 Provision for credit losses 279 Balance at end of period $ 2,131
Allowance For Loan Losses And Loans Receivable By Portfolio Segment Table	The following tables set forth activity in our allowance for credit losses on loans, by loan type, as of, and for the three months ended March 31, 2022, and March 31, 2021 (in thousands): Three Months Ended March 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 — — — — (185) — (185) — (185) Recoveries 78 — — — 5 — 83 — 83 Provisions (credit) 384 44 119 (3) (39) — 505 (102) 403 Ending balance $ 27,247 $ 3,589 $ 679 $ 166 $ 2,954 $ 9 $ 34,644 $ 4,630 $ 39,274 Three Months Ended March 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) — — — — — (21) (2,411) (2,432) Recoveries 19 1 — — 21 2 43 — 43 Provisions (credit) (2,172) (269) (36) (24) 130 (3) (2,374) — (2,374) Ending balance $ 28,882 $ 5,172 $ 643 $ 269 $ 2,940 $ 9 $ 37,915 $ 5,282 $ 43,197 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. The following tables 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 the allowance for credit losses that is allocated to each loan portfolio segment, at March 31, 2022 and December 31, 2021 (in thousands): March 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: Ending balance: individually evaluated for impairment $ 25 $ — $ 3 $ — $ 18 $ — $ 46 $ — $ 46 Ending balance: collectively evaluated for impairment 27,222 3,589 676 166 2,936 9 34,598 — 34,598 Ending balance: PCD loans evaluated for impairment (2) — — — — — — — 4,630 4,630 Loans, net: Ending balance $ 3,421,587 $ 186,007 $ 125,156 $ 17,579 $ 132,250 $ 1,938 $ 3,884,517 $ 14,064 $ 3,898,581 Ending balance: individually evaluated for impairment 8,094 1,369 35 — 101 9,599 — 9,599 Ending balance: collectively evaluated for impairment 3,413,493 184,638 125,121 17,579 107,800 1,938 3,850,569 — 3,850,569 Ending balance: PCD loans evaluated for impairment (2) — — — — — — — 14,064 14,064 PPP loans not evaluated for impairment (3) — — — — 24,349 — 24,349 — 24,349 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: 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.

Deposits (Tables)

Deposits (Tables)	3 Months Ended
	Mar. 31, 2022
Deposits [Abstract]
Deposit Account Balances	Deposit account balances are summarized as follows (in thousands): March 31, 2022 December 31, 2021 Non-interest-bearing checking $ 944,096 $ 898,490 Negotiable orders of withdrawal ("NOW") and interest-bearing checking 1,231,377 1,112,292 Savings and money market 1,768,629 1,776,191 Certificates of deposit 358,764 382,361 Total deposits $ 4,302,866 $ 4,169,334
Interest Expense on Deposits	Interest expense on deposit accounts is summarized for the periods indicated (in thousands): Three Months Ended March 31, 2022 2021 NOW and interest-bearing checking, savings, and money market $ 571 $ 932 Certificates of deposit 588 938 Total interest expense on deposit accounts $ 1,159 $ 1,870

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Stock Options Outstanding	The following table is a summary of the Company’s stock options outstanding as of March 31, 2022, and changes therein during the three months then ended. Number of Stock Options Weighted Average Grant Date Fair Value Weighted Average Exercise Price Weighted Average Contractual Life (years) Outstanding - December 31, 2021 1,769,979 $ 4.02 $ 13.95 2.95 Exercised (17,040) 3.95 13.54 — Outstanding - March 31, 2022 1,752,939 4.02 13.96 2.71 Exercisable - March 31, 2022 1,752,939 4.02 13.96 2.71
Status of the Company's Restricted Share Awards	The following is a summary of the status of the Company’s restricted stock awards at March 31, 2022, and changes therein during the three months then ended. Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2021 222,844 $ 13.21 Granted 181,908 15.78 Vested (62,836) 12.87 Forfeited (2,875) 14.00 Non-vested at March 31, 2022 339,041 14.65

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Significant Fair Value of Assets and Liabilities Measured on Recurring and Non Recurring Basis	Fair Value Measurements at March 31, 2022 Using: Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (in thousands) Measured on a recurring basis: Assets: Investment securities: Debt securities available-for-sale: U.S. Government agency $ 75,620 $ — $ 75,620 $ — Mortgage-backed securities: Pass-through certificates: GSE 564,390 — 564,390 — REMICs: GSE 311,103 — 311,103 — 875,493 — 875,493 — Other debt securities: Municipal bonds 52 — 52 — Corporate bonds 203,112 — 203,112 — 203,164 — 203,164 — Total debt securities available-for-sale 1,154,277 — 1,154,277 — Trading securities 12,156 12,156 — — Equity securities (1) 368 368 — — Total $ 1,166,801 $ 12,524 $ 1,154,277 $ — Measured on a non-recurring basis: Assets: Loans individually evaluated for impairment: Real estate loans: Commercial real estate $ 3,401 $ — $ — $ 3,401 Home equity and lines of credit 26 — — 26 Total individually evaluated real estate loans 3,427 — — 3,427 Commercial and industrial loans 64 — — 64 Other real estate owned 100 — — 100 Total $ 3,591 $ — $ — $ 3,591 (1) Excludes investment measured at net asset value of $7.5 million at March 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 Inputs (Level 2) Significant Unobservable Inputs (Level 3) (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 certificates: 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.
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 March 31, 2022 and December 31, 2021 (dollars in thousands): Fair Value Valuation Methodology Unobservable Range of Inputs March 31, 2022 December 31, 2021 March 31, 2022 December 31, 2021 Individually evaluated loans $ 3,491 $ 3,807 Appraisals Discount for costs to sell 7.0% 7.0% Discount for quick sale 10.0% 10.0% Discounted cash flows Interest rates 4.88% to 7.50% 4.88% to 6.25% Other real estate owned 100 100 Appraisals Discount for costs to sell 7.0% 7.0%
Estimated Fair Values of Significant Financial Instruments	The estimated fair values of the Company’s significant financial instruments at March 31, 2022 and December 31, 2021, are presented in the following tables (in thousands): March 31, 2022 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 135,514 $ 135,514 $ — $ — $ 135,514 Trading securities 12,156 12,156 — — 12,156 Debt securities available-for-sale 1,154,277 — 1,154,277 — 1,154,277 Debt securities held-to-maturity 5,243 — 5,182 — 5,182 Equity securities (1) 368 368 — — 368 FHLBNY stock, at cost 21,211 — 21,211 — 21,211 Net loans held-for-investment 3,859,307 — — 3,838,452 3,838,452 Derivative assets 2,643 — 2,643 — 2,643 Financial liabilities: Deposits $ 4,302,866 $ — $ 4,305,018 $ — $ 4,305,018 Borrowed funds 397,877 — 391,323 — 391,323 Advance payments by borrowers for taxes and insurance 30,032 — 30,032 — 30,032 Derivative liabilities 2,645 — 2,645 — 2,645 (1) Excludes investment measured at net asset value of $7.5 million at March 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 Borrowed funds 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)	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
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 per share data): Three Months Ended March 31, 2022 2021 Net income available to common stockholders $ 14,127 $ 18,677 Weighted average shares outstanding-basic 46,811,331 49,528,419 Effect of non-vested restricted stock and stock options outstanding 277,044 105,225 Weighted average shares outstanding-diluted 47,088,375 49,633,644 Earnings per share-basic $ 0.30 $ 0.38 Earnings per share-diluted $ 0.30 $ 0.38 Anti-dilutive shares 273,469 1,002,377

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2022
Leases [Abstract]
Lease, Cost	Supplemental lease information at or for the three months ended March 31, 2022, and March 31, 2021 is as follows (dollars in thousands): Three Months Ended March 31, 2022 2021 Operating lease cost $ 1,469 $ 1,455 Variable lease cost 965 1,235 Net lease cost $ 2,434 $ 2,690 Cash paid for amounts included in measurement of operating lease liabilities $ 1,564 $ 1,708 Right-of-use assets obtained in exchange for new operating lease liabilities $ — $ — Weighted average remaining lease term 11.81 years 12.26 years Weighted average discount rate 3.56 % 3.60 %
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 (in thousands): Year Amount 2022 $ 4,318 2023 5,802 2024 5,372 2025 5,024 2026 4,253 Thereafter 24,128 Total lease payments 48,897 Less: imputed interest 10,287 Present value of lease liabilities $ 38,610

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 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): Three Months Ended March 31, 2022 2021 Fees and service charges for customer services: Service charges $ 760 $ 720 ATM and card interchange fees 455 399 Investment fees 116 78 Total fees and service charges for customer services 1,331 1,197 Income on bank-owned life insurance (1) 839 848 Gains on available-for-sale debt securities, net (1) 264 97 (Losses)/gains on trading securities, net (1) (802) 364 Other 81 130 Total non-interest income $ 1,713 $ 2,636 (1) Not in scope of Topic 606

Derivatives (Tables)

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Liabilities at Fair Value	The table below presents the fair value of the derivatives as well as their location on the consolidated balance sheets (in thousands): Fair Value Balance Sheet Location March 31, 2022 December 31, 2021 Other assets $ 2,643 $ 923 Other liabilities 2,645 925
Schedule of Derivative Assets at Fair Value	The table below presents the fair value of the derivatives as well as their location on the consolidated balance sheets (in thousands): Fair Value Balance Sheet Location March 31, 2022 December 31, 2021 Other assets $ 2,643 $ 923 Other liabilities 2,645 925

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	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 1,186,714	$ 1,205,516
Gross unrealized gains	1,514	7,824
Gross unrealized losses	(33,951)	(5,103)
Estimated fair value	1,154,277	1,208,237
U.S. Government agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	76,572	2,344
Gross unrealized gains	0	0
Gross unrealized losses	(952)	(54)
Estimated fair value	75,620	2,290
Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	902,161	969,790
Gross unrealized gains	1,439	7,631
Gross unrealized losses	(28,107)	(4,305)
Estimated fair value	875,493	973,116
Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	207,981	233,382
Gross unrealized gains	75	193
Gross unrealized losses	(4,892)	(744)
Estimated fair value	203,164	232,831
GSE | Pass-through Certificates
Debt Securities, Available-for-sale [Line Items]
Amortized cost	584,788	579,035
Gross unrealized gains	1,339	5,233
Gross unrealized losses	(21,737)	(2,862)
Estimated fair value	564,390	581,406
GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	317,373	390,755
Gross unrealized gains	100	2,398
Gross unrealized losses	(6,370)	(1,443)
Estimated fair value	311,103	391,710
Municipal bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	52	71
Gross unrealized gains	0	1
Gross unrealized losses	0	0
Estimated fair value	52	72
Corporate bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	207,929	233,311
Gross unrealized gains	75	192
Gross unrealized losses	(4,892)	(744)
Estimated fair value	$ 203,112	$ 232,759

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	Mar. 31, 2022	Dec. 31, 2021
Amortized cost
Amortized cost	$ 1,186,714	$ 1,205,516
Estimated fair value
Estimated fair value	1,154,277	$ 1,208,237
Other Than Mortgage Backed Securities
Amortized cost
Due in one year or less	118,900
Due after one year through five years	164,080
Due after five years through ten years	1,573
Amortized cost	284,553
Estimated fair value
Due in one year or less	117,947
Due after one year through five years	159,377
Due after five years through ten years	1,460
Estimated fair value	$ 278,784

Debt Securities Available-for_5

Debt Securities Available-for-Sale - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)loansecurity	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, restricted	$ 546,400		$ 522,100
Proceeds from sales and calls of debt securities available-for-sale	41,464	$ 5,942
Debt securities, available-for-sale, realized gain	264	97
Debt securities, available-for-sale, realized loss	0	0
Debt securities, trading, realized gain (loss)	(802)	$ 364
Debt securities available-for-sale, allowance for credit loss	0		0
Accrued interest receivable associated with debt securities available-for-sale	$ 2,300		$ 2,500
Real Estate Mortgage Investment Conduits (REMICs) | GSE
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position longer than 12 months | loan	1
Number of debt securities, unrealized loss position less than 12 months | security	4
Real Estate Mortgage Investment Conduits (REMICs) | GSE | Pass Through
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position longer than 12 months | security	17
Number of debt securities, unrealized loss position less than 12 months | security	58
Real Estate Mortgage Investment Conduits (REMICs) | GSE | Non Pass Through
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position longer than 12 months | loan	29
Number of debt securities, unrealized loss position less than 12 months | security	53
Real Estate Mortgage Investment Conduits (REMICs) | Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position longer than 12 months | loan	2
Number of debt securities, unrealized loss position less than 12 months | security	25

Debt Securities Available-for_6

Debt Securities Available-for-Sale - Gross Unrealized Losses on Mortgage-Backed Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	$ (29,210)	$ (4,637)
Estimated fair value, less than 12 months	900,241	689,869
Unrealized losses, 12 months or more	(4,741)	(466)
Estimated fair value, 12 months or more	94,876	21,328
Unrealized losses, total	(33,951)	(5,103)
Estimated fair value, total	995,117	711,197
U.S. Government agency securities
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	(839)	0
Estimated fair value, less than 12 months	74,161	0
Unrealized losses, 12 months or more	(113)	(54)
Estimated fair value, 12 months or more	1,459	2,290
Unrealized losses, total	(952)	(54)
Estimated fair value, total	75,620	2,290
GSE | Pass-through Certificates
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	(21,102)	(2,543)
Estimated fair value, less than 12 months	456,299	417,291
Unrealized losses, 12 months or more	(635)	(318)
Estimated fair value, 12 months or more	12,716	14,625
Unrealized losses, total	(21,737)	(2,861)
Estimated fair value, total	469,015	431,916
GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	(3,531)	(1,350)
Estimated fair value, less than 12 months	211,385	125,725
Unrealized losses, 12 months or more	(2,839)	(94)
Estimated fair value, 12 months or more	66,845	4,413
Unrealized losses, total	(6,370)	(1,444)
Estimated fair value, total	278,230	130,138
Corporate bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	(3,738)	(744)
Estimated fair value, less than 12 months	158,396	146,853
Unrealized losses, 12 months or more	(1,154)	0
Estimated fair value, 12 months or more	13,856	0
Unrealized losses, total	(4,892)	(744)
Estimated fair value, total	$ 172,252	$ 146,853

Debt Securities Held-to-Matur_3

Debt Securities Held-to-Maturity - Mortgage Backed Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 5,243	$ 5,283
Gross Unrealized Gains	14	192
Gross Unrealized Losses	(75)	0
Estimated Fair Value	5,182	5,475
Mortgage Backed Securities Pass Through Certificates
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,243	5,283
Gross Unrealized Gains	14	192
Gross Unrealized Losses	(75)	0
Estimated Fair Value	$ 5,182	$ 5,475

Debt Securities Held-to-Matur_4

Debt Securities Held-to-Maturity - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)security	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)security
Investments, Debt and Equity Securities [Abstract]
Held-to-maturity securities sold	$ 0	$ 0
Held-to-maturity securities pledged to secure borrowings and deposits			$ 2,100
Allowance for credit losses	0
Accrued interest receivable associated with held-to-maturity securities	$ 16		$ 16
Held-to-maturity securities unrealized loss position less than twelve months | security	5
Held-to-maturity securities unrealized loss position greater than twelve months | security	0
Held-to-maturity securities unrealized loss position | security			0

Debt Securities Held-to-Matur_5

Debt Securities Held-to-Maturity - Held-to-Maturity Securities in a Continuous Unrealized Loss Positions (Details) $ in Thousands	Mar. 31, 2022USD ($)
Unrealized losses
Less than 12 months	$ (75)
12 months or more	0
Total	(75)
Estimated fair value
Less than 12 months	3,814
12 months or more	0
Total	3,814
Mortgage Backed Securities Pass Through Certificates
Unrealized losses
Less than 12 months	(75)
12 months or more	0
Total	(75)
Estimated fair value
Less than 12 months	3,814
12 months or more	0
Total	$ 3,814

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	$ 7,883	$ 5,342
Money Market Funds
Debt and Equity Securities, FV-NI [Line Items]
Equity securities, fair value	368	328
Small Business Administration Loan Fund
Debt and Equity Securities, FV-NI [Line Items]
Equity securities not been classified in the fair value	$ 7,500	$ 5,000

Loans - Net Loans Held-for-Inve

Loans - Net Loans Held-for-Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Total loans held-for-investment, net	$ 3,898,581	$ 3,806,617
Less: allowance for credit losses	(39,274)	(38,973)	$ (43,197)	$ (37,607)
Net loans held-for-investment	3,859,307	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	3,884,517	3,790,798
Less: allowance for credit losses	(34,644)	(34,241)	(37,915)	(36,726)
PCD loans
Loans and Leases Receivable Disclosure [Line Items]
Total loans held-for-investment, net	14,064	15,819
Less: allowance for credit losses	(4,630)	(4,732)	(5,282)	(881)
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	3,750,329	3,647,778
Total loans held-for-investment, net	3,750,329	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	2,568,784	2,518,065
Total loans held-for-investment, net	2,568,784	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	852,803	808,597
Total loans held-for-investment, net	852,803	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	186,007	183,665
Total loans held-for-investment, net	186,007	183,665
Less: allowance for credit losses	(3,589)	(3,545)	(5,172)	(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	125,156	109,956
Total loans held-for-investment, net	125,156	109,956
Less: allowance for credit losses	(679)	(560)	(643)	(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	17,579	27,495
Total loans held-for-investment, net	17,579	27,495
Less: allowance for credit losses	(166)	(169)	(269)	(1,214)
Commercial and industrial and other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	134,188	143,020
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	132,250	141,005
Total loans held-for-investment, net	132,250	141,005
Less: allowance for credit losses	(2,954)	(3,173)	(2,940)	(1,842)
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,938	2,015
Total loans held-for-investment, net	1,938	2,015
Less: allowance for credit losses	(9)	(9)	$ (9)	$ (198)
Paycheck Protection Program | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 24,300	$ 40,500

Loans - Narrative, Loans Held-f

Loans - Narrative, Loans Held-for-Investment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-sale	$ 0	$ 0
PCI loans	$ 3,898,581	$ 3,806,617
Home equity loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	13.00%
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	24.00%	25.00%
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	53.00%	48.00%
One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	10.00%	16.00%
Construction and land and home equity loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans		11.00%
PCD loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	$ 14,064	$ 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	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held-for-investment, net	$ 3,898,581	$ 3,806,617
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	243,368	975,281
Year Two	933,294	635,439
Year Three	625,242	455,817
Year Four	432,417	369,637
Year Five	355,341	316,751
Prior	1,157,804	915,570
Revolving Loans	137,051	122,303
Loans held-for-investment, net	3,884,517	3,790,798
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	238,274	928,140
Year Two	902,624	624,835
Year Three	616,390	451,100
Year Four	428,034	366,700
Year Five	353,132	315,979
Prior	1,147,567	905,273
Revolving Loans	64,308	55,751
Loans held-for-investment, net	3,750,329	3,647,778
Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	140,478	723,029
Year Two	707,895	525,078
Year Three	522,329	323,791
Year Four	306,589	244,093
Year Five	236,665	231,647
Prior	654,538	470,243
Revolving Loans	290	184
Loans held-for-investment, net	2,568,784	2,518,065
Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	140,478	723,029
Year Two	707,895	525,078
Year Three	522,329	322,067
Year Four	304,873	238,692
Year Five	232,859	231,647
Prior	646,767	461,834
Revolving Loans	290	184
Loans held-for-investment, net	2,555,491	2,502,531
Real estate loans: | Multifamily | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	420	425
Revolving Loans	0	0
Loans held-for-investment, net	420	425
Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	0	0
Year Two	0	0
Year Three	0	1,724
Year Four	1,716	5,401
Year Five	3,806	0
Prior	7,351	7,984
Revolving Loans	0	0
Loans held-for-investment, net	12,873	15,109
Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	72,580	164,684
Year Two	162,937	72,718
Year Three	69,665	105,599
Year Four	101,502	99,165
Year Five	96,635	69,699
Prior	346,947	294,143
Revolving Loans	2,537	2,589
Loans held-for-investment, net	852,803	808,597
Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	72,580	153,803
Year Two	152,133	72,718
Year Three	69,665	97,228
Year Four	96,502	99,165
Year Five	96,635	65,750
Prior	323,475	274,195
Revolving Loans	2,537	2,589
Loans held-for-investment, net	813,527	765,448
Real estate loans: | Commercial mortgage | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	0	0
Year Two	0	0
Year Three	0	505
Year Four	0	0
Year Five	0	1,095
Prior	8,536	8,559
Revolving Loans	0	0
Loans held-for-investment, net	8,536	10,159
Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	0	10,881
Year Two	10,804	0
Year Three	0	7,866
Year Four	5,000	0
Year Five	0	2,854
Prior	14,936	11,389
Revolving Loans	0	0
Loans held-for-investment, net	30,740	32,990
Real estate loans: | One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	13,915	12,095
Year Two	12,038	9,040
Year Three	8,852	12,228
Year Four	11,079	13,299
Year Five	10,274	10,232
Prior	128,819	125,767
Revolving Loans	1,030	1,004
Loans held-for-investment, net	186,007	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 Loss [Line Items]
Current Fiscal Year	13,915	12,095
Year Two	12,038	9,040
Year Three	8,852	11,244
Year Four	10,103	13,299
Year Five	10,274	10,232
Prior	123,818	120,693
Revolving Loans	1,030	1,004
Loans held-for-investment, net	180,030	177,607
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 Loss [Line Items]
Current Fiscal Year	0	0
Year Two	0	0
Year Three	0	467
Year Four	467	0
Year Five	0	0
Prior	2,304	2,336
Revolving Loans	0	0
Loans held-for-investment, net	2,771	2,803
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 Loss [Line Items]
Current Fiscal Year	0	0
Year Two	0	0
Year Three	0	517
Year Four	509	0
Year Five	0	0
Prior	2,697	2,738
Revolving Loans	0	0
Loans held-for-investment, net	3,206	3,255
Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	1,252	9,883
Year Two	2,209	5,755
Year Three	3,884	2,039
Year Four	2,019	4,062
Year Five	4,041	1,809
Prior	4,174	3,467
Revolving Loans	0	480
Loans held-for-investment, net	17,579	27,495
Real estate loans: | Construction and land | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	1,252	9,883
Year Two	2,209	5,755
Year Three	3,884	2,039
Year Four	2,019	4,062
Year Five	1,971	1,809
Prior	4,174	3,467
Revolving Loans	0	480
Loans held-for-investment, net	15,509	27,495
Real estate loans: | Construction and land | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	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
Real estate loans: | Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	10,049	18,449
Year Two	17,545	12,244
Year Three	11,660	7,443
Year Four	6,845	6,081
Year Five	5,517	2,592
Prior	13,089	11,653
Revolving Loans	60,451	51,494
Loans held-for-investment, net	125,156	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 Loss [Line Items]
Current Fiscal Year	10,049	18,449
Year Two	17,485	12,244
Year Three	11,660	7,347
Year Four	6,750	6,031
Year Five	5,468	2,592
Prior	12,542	11,162
Revolving Loans	60,451	51,494
Loans held-for-investment, net	124,405	109,319
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 Loss [Line Items]
Current Fiscal Year	0	0
Year Two	60	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	100	103
Revolving Loans	0	0
Loans held-for-investment, net	160	103
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 Loss [Line Items]
Current Fiscal Year	0	0
Year Two	0	0
Year Three	0	96
Year Four	95	50
Year Five	49	0
Prior	447	388
Revolving Loans	0	0
Loans held-for-investment, net	591	534
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	3,437	45,426
Year Two	30,670	10,448
Year Three	8,705	4,698
Year Four	4,368	2,911
Year Five	2,189	772
Prior	10,198	10,248
Revolving Loans	72,683	66,502
Loans held-for-investment, net	132,250	141,005
Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	3,437	45,426
Year Two	30,670	10,087
Year Three	8,372	4,378
Year Four	4,149	2,316
Year Five	1,990	640
Prior	9,511	9,298
Revolving Loans	71,275	61,728
Loans held-for-investment, net	129,404	133,873
Commercial and industrial loans | Special mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	0	0
Year Two	0	0
Year Three	0	166
Year Four	160	0
Year Five	0	132
Prior	361	224
Revolving Loans	50	50
Loans held-for-investment, net	571	572
Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	0	0
Year Two	0	361
Year Three	333	154
Year Four	59	595
Year Five	199	0
Prior	326	726
Revolving Loans	1,358	4,724
Loans held-for-investment, net	2,275	6,560
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	1,657	1,715
Year Two	0	156
Year Three	147	19
Year Four	15	26
Year Five	20	0
Prior	39	49
Revolving Loans	60	50
Loans held-for-investment, net	1,938	2,015
Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Current Fiscal Year	1,657	1,715
Year Two	0	156
Year Three	147	19
Year Four	15	26
Year Five	20	0
Prior	39	49
Revolving Loans	60	50
Loans held-for-investment, net	$ 1,938	$ 2,015

Loans - Narrative, Past Due and

Loans - Narrative, Past Due and Non-Accrual Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2022	Jun. 30, 2021	Dec. 31, 2021
Receivables [Abstract]
Non-accrual loans	$ 8,102		$ 7,622
Criteria days for delinquent status	90 days	90 days	90 days
Principal balance of loans on non accrual status, less then	$ 500
Impairment of loans	4,200		$ 4,200
Loans on non accrual status with principal balances below threshold definition of an impaired loan	3,900		3,400
90 days or more past due and accruing	$ 59		$ 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	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	$ 3,898,581	$ 3,806,617
Non-accrual loans	8,102	7,622
90 Days or More Past Due and Accruing	59	384
Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	1,853	1,882
Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	5,380	5,117
Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	312	314
Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	279	281
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	278	28
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	8,161	8,006
Non-accrual loans	8,102	7,622
90 Days or More Past Due and Accruing	59	384
Non-Performing Loans | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	7,867	7,906
Non-accrual loans	7,824	7,594
90 Days or More Past Due and Accruing	43	312
Non-Performing Loans | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,853	1,882
Non-accrual loans	1,853	1,882
90 Days or More Past Due and Accruing	0	0
Non-Performing Loans | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	5,417	5,264
Non-accrual loans	5,380	5,117
90 Days or More Past Due and Accruing	37	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	318	479
Non-accrual loans	312	314
90 Days or More Past Due and Accruing	6	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	279	281
Non-accrual loans	279	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	294	100
Non-accrual loans	278	28
90 Days or More Past Due and Accruing	16	72
Non-Performing Loans | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	1,853	1,882
Non-accrual loans	1,853	1,882
90 Days or More Past Due and Accruing	0	0
Non-Performing Loans | Substandard | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	5,417	4,984
Non-accrual loans	5,380	4,837
90 Days or More Past Due and Accruing	37	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	318	479
Non-accrual loans	312	314
90 Days or More Past Due and Accruing	6	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	279	281
Non-accrual loans	279	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	294	28
Non-accrual loans	278	28
90 Days or More Past Due and Accruing	16	0
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-accrual loans		280
90 Days or More Past Due and Accruing		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-accrual loans		0
90 Days or More Past Due and Accruing		72
Non-Performing Loans | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,859	2,972
Non-Performing Loans | Current | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,859	2,944
Non-Performing Loans | Current | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	0
Non-Performing Loans | Current | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	2,859	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	0	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 | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	0	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	2,859	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	0	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 | 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 | Current | 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
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	350	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	350	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	279	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	71	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	0	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	279	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	71	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	0	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 | 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 | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	4,893	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	4,615	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	1,574	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	2,450	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	312	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	279	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	278	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	1,574	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	2,450	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	312	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	279	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	$ 278	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
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

Loans - Detail and Delinquency

Loans - Detail and Delinquency Status of Loans Held-for-Investment, Excluding PCD/PCI Loans, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-investment, net	$ 3,898,581	$ 3,806,617
90 Days or More Past Due and Accruing	59	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	3,884,517	3,790,798
90 Days or More Past Due and Accruing	59	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	3,750,329	3,647,778
90 Days or More Past Due and Accruing	43	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	2,568,784	2,518,065
90 Days or More Past Due and Accruing	0	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	2,555,491	2,502,531
90 Days or More Past Due and Accruing	0	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	420	425
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	12,873	15,109
90 Days or More Past Due and Accruing	0	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	852,803	808,597
90 Days or More Past Due and Accruing	37	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	813,527	765,448
90 Days or More Past Due and Accruing	0	0
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	8,536	10,159
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	30,740	32,990
90 Days or More Past Due and Accruing	37	147
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	186,007	183,665
90 Days or More Past Due and Accruing	6	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	180,030	177,607
90 Days or More Past Due and Accruing	0	0
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	2,771	2,803
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	3,206	3,255
90 Days or More Past Due and Accruing	6	165
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	125,156	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	124,405	109,319
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	160	103
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	591	534
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	17,579	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	15,509	27,495
90 Days or More Past Due and Accruing	0	0
Real estate loans: | Construction and land | 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	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	132,250	141,005
90 Days or More Past Due and Accruing	16	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	129,404	133,873
90 Days or More Past Due and Accruing	0	72
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	571	572
90 Days or More Past Due and Accruing	0	0
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	2,275	6,560
90 Days or More Past Due and Accruing	16	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	1,938	2,015
90 Days or More Past Due and Accruing	0	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	1,938	2,015
90 Days or More Past Due and Accruing	0	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	4,434	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	4,277	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	3,083	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	0	0
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	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	3,083	280
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	375	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	0	77
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	66	67
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	309	0
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	554	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	325	206
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	73	387
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	156	0
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	265	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	110	316
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	60	0
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	95	96
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 | 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 | 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	141	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	129	2
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	12	0
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	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	16	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	16	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	4,893	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	4,615	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	1,574	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 | 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: | 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	1,574	1,602
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	2,450	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 | 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: | 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	2,450	1,893
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	312	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 | 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: | 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	312	314
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	279	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 | 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 | 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	279	281
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 | 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 | 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	278	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 | 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 | 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	278	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	9,386	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	8,935	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	4,657	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	0	0
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	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	4,657	1,882
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	2,862	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	0	77
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	66	347
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	2,796	2,040
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	872	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	325	206
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	73	387
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	474	479
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	544	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	110	316
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	60	0
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	374	377
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 | 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 | 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	435	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	129	74
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	12	0
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	294	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	16	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	16	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	3,875,131	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	3,741,394	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	2,564,127	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	2,555,491	2,502,531
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	420	425
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	8,216	13,227
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	849,941	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	813,527	765,371
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	8,470	9,812
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	27,944	30,950
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	185,135	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	179,705	177,401
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	2,698	2,416
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	2,732	2,776
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	124,612	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	124,295	109,003
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	100	103
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	217	157
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	17,579	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	15,509	27,495
Current | Real estate loans: | Construction and land | 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	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	131,815	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	129,275	133,799
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	559	572
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	1,981	6,560
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	1,922	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	$ 1,922	$ 2,000

Loans - Non-Accrual Loans, Excl

Loans - Non-Accrual Loans, Excluding PCD Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	$ 8,102	$ 7,622
Unpaid Principal Balance	10,978	8,743
With No Related Allowance	4,202	4,241
Real estate loans: | Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	1,853	1,882
Unpaid Principal Balance	1,862	1,891
With No Related Allowance	500	512
Real estate loans: | Commercial mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	5,380	5,117
Unpaid Principal Balance	7,577	5,627
With No Related Allowance	3,702	3,729
Real estate loans: | One-to-four family residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	312	314
Unpaid Principal Balance	343	346
With No Related Allowance	0	0
Real estate loans: | Home equity and lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	279	281
Unpaid Principal Balance	529	530
With No Related Allowance	0	0
Commercial and industrial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	278	28
Unpaid Principal Balance	667	349
With No Related Allowance	$ 0	$ 0

Loans - Interest Income on Non-

Loans - Interest Income on Non-Accrual Loans, Excluding PCD Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	$ 40	$ 49
Real estate loans: | Multifamily
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	24	14
Real estate loans: | Commercial mortgage
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	12	25
Real estate loans: | One-to-four family residential mortgage
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	3	6
Real estate loans: | Home equity and lines of credit
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	0	2
Commercial and industrial loans
Financing Receivable, Impaired [Line Items]
Total interest income on non-accrual loans	$ 1	$ 2

Loans - Narrative, Collateral-D

Loans - Narrative, Collateral-Dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	$ 7,300	$ 7,400
Real estate loans: | Commercial mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	5,800
Real estate loans: | Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	1,100
Real estate loans: | One-to-four family residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	$ 357

Loans - Narrative, Troubled Deb

Loans - Narrative, Troubled Debt Restructurings (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)contract	Mar. 31, 2021contract	Dec. 31, 2021USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings | $	$ 8.6		$ 9
Number of TDR loans restructured that subsequently defaulted (contract)	0	0
COVID-19
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts		0
Loan modification program, payment deferral period	90 days
Loan modification program, extension for payment deferral period	90 days

Allowance for Credit Losses (_3

Allowance for Credit Losses (“ACL”) on Loans - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment threshold	$ 500,000
Individually evaluated for impairment	46,200	$ 30,200
Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Line Items]
Increase in allowance for credit loss	$ 39,300,000	$ 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) $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	$ 1,852
Provision for credit losses	279
Ending balance	$ 2,131

Allowance for Credit Losses (_5

Allowance for Credit Losses (“ACL”) on Loans - Amount of Loans Receivable Held-for-Investment and Related Allowances Per Loan Portfolio Segment (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 38,973,000	$ 37,607,000
Charge-offs	(185,000)	(2,432,000)
Recoveries	83,000	43,000
Provisions (credit)	403,000	(2,374,000)
Ending balance	39,274,000	43,197,000
Originated Loans Net
Ending balance: individually evaluated for impairment	46,200		$ 30,200
Ending balance: collectively evaluated for impairment	34,598,000		34,211,000
Ending balance: PCD loans evaluated for impairment	4,630,000		4,732,000
Loans held-for-investment, net	3,898,581,000		3,806,617,000
Ending balance: individually evaluated for impairment	9,599,000		9,986,000
Ending balance: collectively evaluated for impairment	3,850,569,000		3,740,295,000
Ending balance: PCD loans evaluated for impairment	14,064,000		15,819,000
PPP loans not evaluated for impairment	24,349,000		40,517,000
Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		10,353,000
Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		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	(185,000)	(21,000)
Recoveries	83,000	43,000
Provisions (credit)	505,000	(2,374,000)
Ending balance	34,644,000	37,915,000
Originated Loans Net
Ending balance: individually evaluated for impairment	46,000		30,000
Ending balance: collectively evaluated for impairment	34,598,000		34,211,000
Ending balance: PCD loans evaluated for impairment	0		0
Loans held-for-investment, net	3,884,517,000		3,790,798,000
Ending balance: individually evaluated for impairment	9,599,000		9,986,000
Ending balance: collectively evaluated for impairment	3,850,569,000		3,740,295,000
Ending balance: PCD loans evaluated for impairment	0		0
PPP loans not evaluated for impairment	24,349,000		40,517,000
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Real estate loans:
Originated Loans Net
Loans held-for-investment, net	3,750,329,000		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	(185,000)	0
Recoveries	5,000	21,000
Provisions (credit)	(39,000)	130,000
Ending balance	2,954,000	2,940,000
Originated Loans Net
Ending balance: individually evaluated for impairment	18,000		1,000
Ending balance: collectively evaluated for impairment	2,936,000		3,172,000
Ending balance: PCD loans evaluated for impairment	0		0
Loans held-for-investment, net	132,250,000		141,005,000
Ending balance: individually evaluated for impairment	101,000		34,000
Ending balance: collectively evaluated for impairment	107,800,000		100,454,000
Ending balance: PCD loans evaluated for impairment	0		0
PPP loans not evaluated for impairment	24,349,000		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	0
Recoveries	0	2,000
Provisions (credit)	0	(3,000)
Ending balance	9,000	9,000
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	1,938,000		2,015,000
Ending balance: individually evaluated for impairment			0
Ending balance: collectively evaluated for impairment	1,938,000		2,015,000
Ending balance: PCD loans evaluated for impairment	0		0
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
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
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)
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
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
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
PCD loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,732,000	881,000
Charge-offs	0	(2,411,000)
Recoveries	0	0
Provisions (credit)	(102,000)	0
Ending balance	4,630,000	5,282,000
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	4,630,000		4,732,000
Loans held-for-investment, net	14,064,000		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	14,064,000		15,819,000
PPP loans not evaluated for impairment	0		0
PCD loans | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		6,812,000
PCD loans | Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning 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	0	(21,000)
Recoveries	78,000	19,000
Provisions (credit)	384,000	(2,172,000)
Ending balance	27,247,000	28,882,000
Originated Loans Net
Ending balance: individually evaluated for impairment	25,000		25,000
Ending balance: collectively evaluated for impairment	27,222,000		26,760,000
Ending balance: PCD loans evaluated for impairment	0		0
Loans held-for-investment, net	3,421,587,000		3,326,662,000
Ending balance: individually evaluated for impairment	8,094,000		8,352,000
Ending balance: collectively evaluated for impairment	3,413,493,000		3,318,310,000
Ending balance: PCD loans evaluated for impairment	0		0
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)
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
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	0
Recoveries	0	1,000
Provisions (credit)	44,000	(269,000)
Ending balance	3,589,000	5,172,000
Originated Loans Net
Ending balance: individually evaluated for impairment	0		2,000
Ending balance: collectively evaluated for impairment	3,589,000		3,543,000
Ending balance: PCD loans evaluated for impairment	0		0
Loans held-for-investment, net	186,007,000		183,665,000
Ending balance: individually evaluated for impairment	1,369,000		1,562,000
Ending balance: collectively evaluated for impairment	184,638,000		182,103,000
Ending balance: PCD loans evaluated for impairment	0		0
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
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
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	0	0
Provisions (credit)	119,000	(36,000)
Ending balance	679,000	643,000
Originated Loans Net
Ending balance: individually evaluated for impairment	3,000		2,000
Ending balance: collectively evaluated for impairment	676,000		558,000
Ending balance: PCD loans evaluated for impairment	0		0
Loans held-for-investment, net	125,156,000		109,956,000
Ending balance: individually evaluated for impairment	35,000		38,000
Ending balance: collectively evaluated for impairment	125,121,000		109,918,000
Ending balance: PCD loans evaluated for impairment	0		0
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
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
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)	(3,000)	(24,000)
Ending balance	166,000	269,000
Originated Loans Net
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	166,000		169,000
Ending balance: PCD loans evaluated for impairment	0		0
Loans held-for-investment, net	17,579,000		27,495,000
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	17,579,000		27,495,000
Ending balance: PCD loans evaluated for impairment	0		0
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)
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

Deposits - Deposit Account Bala

Deposits - Deposit Account Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Deposits [Abstract]
Non-interest-bearing checking	$ 944,096	$ 898,490
Negotiable orders of withdrawal ("NOW") and interest-bearing checking	1,231,377	1,112,292
Savings and money market	1,768,629	1,776,191
Certificates of deposit	358,764	382,361
Total deposits	$ 4,302,866	$ 4,169,334

Deposits - Interest Expense On

Deposits - Interest Expense On Deposits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Deposits [Abstract]
NOW and interest-bearing checking, savings, and money market	$ 571	$ 932
Certificates of deposit	588	938
Total interest expense on deposit accounts	$ 1,159	$ 1,870

Equity Incentive Plans - Stock

Equity Incentive Plans - Stock Options Outstanding (Details) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Number of Stock Options
Beginning Balance (shares)	1,769,979
Exercised (in shares)	(17,040)
Ending Balance (shares)	1,752,939	1,769,979
Exercisable (shares)	1,752,939
Weighted Average Grant Date Fair Value
Beginning Balance (usd per share)	$ 4.02
Exercised (usd per share)	3.95
Ending Balance (usd per share)	4.02	$ 4.02
Exercisable (usd per share)	4.02
Weighted Average Exercise Price
Beginning Balance (usd per share)	13.95
Exercised (usd per share)	13.54
Ending Balance (usd per share)	13.96	$ 13.95
Exercisable (usd per share)	$ 13.96
Weighted Average Contractual Life (years)
Outstanding	2 years 8 months 15 days	2 years 11 months 12 days
Exercisable	2 years 8 months 15 days

Equity Incentive Plans - Narrat

Equity Incentive Plans - Narrative (Details) - USD ($)	Jan. 28, 2022	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)		181,908
Allocated share-based compensation expense		$ 396,000	$ 243,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future stock-based compensation expense		$ 4,400,000
Average period of expected future stock option expense		2 years 9 months 18 days
Two Thousand Nineteen Equity Incentive Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	157,416
Grant date value	$ 2,500,000
Two Thousand Nineteen Equity Incentive Plan | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	24,492
Grant date value	$ 386,484
Award vesting period	3 years
Vesting Period One | Two Thousand Nineteen Equity Incentive Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	30,798
Award vesting period	1 year
Vesting Period Two | Two Thousand Nineteen Equity Incentive Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	126,618
Award vesting period	3 years
Period after grant date to begin vesting period	1 year
Minimum | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares issuable based on threshold performance	0.00%
Maximum | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares issuable based on threshold performance	120.00%

Equity Incentive Plans - Status

Equity Incentive Plans - Status of the Company's Restricted Share Awards (Details)	3 Months Ended
	Mar. 31, 2022$ / sharesshares
Number of Shares Awarded
Beginning Balance (shares) | shares	222,844
Granted (shares) | shares	181,908
Vested (shares) | shares	(62,836)
Forfeited (shares) | shares	(2,875)
Ending Balance (shares) | shares	339,041
Weighted Average Grant Date Fair Value
Beginning Balance (in dollars per share) | $ / shares	$ 13.21
Granted (in dollars per share) | $ / shares	15.78
Vested (in dollars per share) | $ / shares	12.87
Forfeited (in dollars per share) | $ / shares	14
Ending Balance (in dollars per share) | $ / shares	$ 14.65

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	$ 1,154,277	$ 1,208,237
Trading securities	12,156	13,461
Individually evaluated loans	3,491	3,807
Investment measured at fair value	7,500	5,000
Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	1,154,277	1,208,237
Trading securities	12,156	13,461
Equity securities	368	328
Total	1,166,801	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	75,620	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	875,493	973,116
Measured on a recurring basis | Pass-through certificates, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	564,390	581,406
Measured on a recurring basis | REMICs, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	311,103	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	52	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	203,112	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	203,164	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	12,156	13,461
Equity securities	368	328
Total	12,524	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) | 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) | 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	1,154,277	1,208,237
Trading securities	0	0
Equity securities	0	0
Total	1,154,277	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	75,620	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	875,493	973,116
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Pass-through certificates, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	564,390	581,406
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | REMICs, GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	311,103	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	52	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	203,112	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	203,164	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) | 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) | 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	3,591	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	3,427	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	3,401	3,599
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	26	27
Measured on a non-recurring basis | Real estate loans: | One-to-four family residential mortgage
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	64	12
Measured on a non-recurring basis | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	100	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: | 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 mortgage
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]
Individually evaluated loans	0	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: | 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 mortgage
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]
Individually evaluated loans	0	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	3,591	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	3,427	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	3,401	3,599
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	26	27
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans: | One-to-four family residential mortgage
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	64	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]
Individually evaluated loans	$ 100	$ 100

Fair Value Measurements - Quali

Fair Value Measurements - Qualitative Information for Level 3 Assets Measured at Fair Value on a Non-Recurring Basis (Details) $ in Thousands	Mar. 31, 2022USD ($)	Dec. 31, 2021USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans	$ 3,491	$ 3,807
Other real estate owned	$ 100	$ 100
Appraisals | Discount for costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable	0.070	0.070
Other real estate owned inputs	0.070	0.070
Appraisals | Discount for quick sale
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable	0.100	0.100
Discounted cash flows | Interest rates | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable	0.0488	0.0488
Discounted cash flows | Interest rates | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable	0.0750	0.0625

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Impaired loans held-for-investment and held-for-sale with outstanding principal balances	$ 5,500		$ 5,800
Estimated fair value of impaired loans held-for-investment and held-for-sale	3,500		$ 3,800
Increase (decrease) in net impairment charges	16	$ 3
Net recoveries (charge offs)	102	$ 2,400
Assets acquired through foreclosure	$ 100

Fair Value Measurements - Estim

Fair Value Measurements - Estimated Fair Values of the Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financial assets:
Trading securities	$ 12,156	$ 13,461
Debt securities available-for-sale	1,154,277	1,208,237
Debt securities held-to-maturity	5,182	5,475
Financial liabilities:
Investment measured at fair value	7,500	5,000
Carrying Value
Financial assets:
Cash and cash equivalents	135,514	91,068
Trading securities	12,156	13,461
Debt securities available-for-sale	1,154,277	1,208,237
Debt securities held-to-maturity	5,243	5,283
Equity securities	368	328
FHLBNY stock, at cost	21,211	22,336
Net loans held-for-investment	3,859,307	3,767,644
Derivative assets	2,643	923
Financial liabilities:
Deposits	4,302,866	4,169,334
Borrowed funds	397,877	421,755
Advance payments by borrowers for taxes and insurance	30,032	24,909
Derivative liabilities	2,645	925
Estimated Fair Value
Financial assets:
Cash and cash equivalents	135,514	91,068
Trading securities	12,156	13,461
Debt securities available-for-sale	1,154,277	1,208,237
Debt securities held-to-maturity	5,182	5,475
Equity securities	368	328
FHLBNY stock, at cost	21,211	22,336
Net loans held-for-investment	3,838,452	3,904,026
Derivative assets	2,643	923
Financial liabilities:
Deposits	4,305,018	4,172,125
Borrowed funds	391,323	426,235
Advance payments by borrowers for taxes and insurance	30,032	24,909
Derivative liabilities	2,645	925
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	135,514	91,068
Trading securities	12,156	13,461
Debt securities available-for-sale	0	0
Debt securities held-to-maturity	0	0
Equity securities	368	328
FHLBNY stock, at cost	0	0
Net loans held-for-investment	0	0
Derivative assets	0	0
Financial liabilities:
Deposits	0	0
Borrowed funds	0	0
Advance payments by borrowers for taxes and insurance	0	0
Derivative liabilities	0	0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and cash equivalents	0	0
Trading securities	0	0
Debt securities available-for-sale	1,154,277	1,208,237
Debt securities held-to-maturity	5,182	5,475
Equity securities	0	0
FHLBNY stock, at cost	21,211	22,336
Net loans held-for-investment	0	0
Derivative assets	2,643	923
Financial liabilities:
Deposits	4,305,018	4,172,125
Borrowed funds	391,323	426,235
Advance payments by borrowers for taxes and insurance	30,032	24,909
Derivative liabilities	2,645	925
Estimated Fair Value | Significant Unobservable Inputs (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	3,838,452	3,904,026
Derivative assets	0	0
Financial liabilities:
Deposits	0	0
Borrowed funds	0	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	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 14,127	$ 18,677
Weighted average shares outstanding-basic (shares)	46,811,331	49,528,419
Effect of non-vested restricted stock and stock options outstanding (shares)	277,044	105,225
Weighted average shares outstanding-diluted (shares)	47,088,375	49,633,644
Earnings per share-basic (usd per share)	$ 0.30	$ 0.38
Earnings per share-diluted (usd per share)	$ 0.30	$ 0.38
Anti-dilutive shares (shares)	273,469	1,002,377

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Thousands	Mar. 31, 2022USD ($)lease_obligation	Dec. 31, 2021USD ($)
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 32,813	$ 33,943
Operating lease liabilities	$ 38,610	$ 39,851
Lease agreements | lease_obligation	2
Lease term not yet commenced	10 years
Undiscounted cash payments of lease not yet commenced	$ 4,200
Minimum
Lessee, Lease, Description [Line Items]
Term of lease	3 months
Renewal term	5 years
Maximum
Lessee, Lease, Description [Line Items]
Term of lease	33 years 3 months
Renewal term	10 years

Leases - Supplemental Lease Inf

Leases - Supplemental Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Operating lease cost	$ 1,469	$ 1,455
Variable lease cost	965	1,235
Net lease cost	2,434	2,690
Cash paid for amounts included in measurement of operating lease liabilities	1,564	1,708
Right-of-use assets obtained in exchange for new lease liabilities	$ 0	$ 0
Weighted average remaining lease term	11 years 9 months 21 days	12 years 3 months 3 days
Weighted average discount rate	3.56%	3.60%

Leases - Lease Payments Obligat

Leases - Lease Payments Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Leases [Abstract]
2022	$ 4,318
2023	5,802
2024	5,372
2025	5,024
2026	4,253
Thereafter	24,128
Total lease payments	48,897
Less: imputed interest	10,287
Present value of lease liabilities	$ 38,610	$ 39,851

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	$ 1,331	$ 1,197
Income on bank-owned life insurance	839	848
Gains on available-for-sale debt securities, net	264	97
(Losses)/gains on trading securities, net	(802)	364
Other	81	130
Total non-interest income	1,713	2,636
Service charges
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	760	720
ATM and card interchange fees
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	455	399
Investment fees
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	$ 116	$ 78

Derivatives - Additional Inform

Derivatives - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)instrument	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)instrument
Derivative [Line Items]
Swap income	$ 0	$ 0
Interest Rate Swap
Derivative [Line Items]
Number of derivative instruments held | instrument	7		7
Derivative, notional amount	$ 37,800		$ 38,100

Derivatives - Fair Value of Der

Derivatives - Fair Value of Derivatives (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other assets
Derivative [Line Items]
Fair value of derivative asset	$ 2,643	$ 923
Other liabilities
Derivative [Line Items]
Fair value of derivative liability	$ 2,645	$ 925

Uncategorized Items - nfbk-2022

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