Northfield Bancorp, Inc. (NFBK) 10-Q 10 May 21 2021 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2021	Apr. 30, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
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	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		51,303,231
Entity Central Index Key	0001493225
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
ASSETS:
Cash and due from banks	$ 15,920	$ 16,115
Interest-bearing deposits in other financial institutions	111,650	71,429
Total cash and cash equivalents	127,570	87,544
Trading securities	12,142	12,291
Debt securities available-for-sale	1,207,238	1,264,805
Debt securities held-to-maturity, at amortized cost, (estimated fair value of $7,241 at March 31, 2021, and $7,574 at December 31, 2020, and no allowance for credit losses at March 31, 2021)	6,913	7,234
Equity securities	473	253
Loans held-for-sale	0	19,895
Total Loans held-for-investment, net	3,933,015	3,823,238
Less: allowance for loan losses	(43,197)	(37,607)
Net loans held-for-investment	3,889,818	3,785,631
Accrued interest receivable	14,753	14,690
Bank-owned life insurance	162,771	161,924
Federal Home Loan Bank (“FHLB”) of New York stock, at cost	28,641	28,641
Operating lease right-of-use assets	35,662	36,741
Premises and equipment, net	27,509	28,188
Goodwill	41,320	41,320
Other assets	22,114	25,387
Total assets	5,576,924	5,514,544
LIABILITIES:
Deposits	4,135,716	4,076,551
Securities sold under agreements to repurchase	75,000	75,000
FHLB advances and other borrowings	517,170	516,789
Operating lease liabilities	42,067	42,734
Advance payments by borrowers for taxes and insurance	24,027	19,677
Accrued expenses and other liabilities	28,379	29,812
Total liabilities	4,822,359	4,760,563
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, 2021 and December 31, 2020, 51,668,197 and 52,209,897 outstanding at March 31, 2021, and December 31, 2020, respectively	648	648
Additional paid-in-capital	589,188	590,506
Unallocated common stock held by employee stock ownership plan	(18,286)	(18,529)
Retained earnings	348,236	338,093
Accumulated other comprehensive income	12,267	13,160
Treasury stock at cost: 13,102,678 and 12,560,978 shares at March 31, 2021 and December 31, 2020, respectively	(177,488)	(169,897)
Total stockholders’ equity	754,565	753,981
Total liabilities and stockholders’ equity	$ 5,576,924	$ 5,514,544

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Debt securities available-for-sale, allowance for credit loss	$ 0
Debt securities held-to-maturity	7,241	$ 7,574
Debt securities held-to-maturity, allowance for credit loss	$ 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)	51,668,197	52,209,897
Treasury stock, shares (shares)	13,102,678	12,560,978

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest income:
Loans	$ 41,277	$ 35,337
Mortgage-backed securities	2,959	5,622
Other securities	424	1,024
FHLB of New York dividends	370	577
Deposits in other financial institutions	37	172
Total interest income	45,067	42,732
Interest expense:
Deposits	1,870	9,279
Borrowings	3,021	3,520
Total interest expense	4,891	12,799
Net interest income	40,176	29,933
Provision for credit losses	(2,374)	8,183
Net interest income after provision for loan losses	42,550	21,750
Non-interest income:
Fees and service charges for customer services	1,197	1,120
Income on bank-owned life insurance	848	876
Gains (losses) on available-for-sale debt securities, net	97	(13)
Gains (losses) on trading securities, net	364	(1,992)
Other	130	117
Total non-interest income	2,636	108
Non-interest expense:
Compensation and employee benefits	10,532	7,289
Occupancy	3,701	3,060
Furniture and equipment	437	333
Data processing	1,632	1,460
Professional fees	906	1,109
Advertising	465	818
Federal Deposit Insurance Corporation ("FDIC") insurance	375	0
Other	1,515	1,613
Total non-interest expense	19,563	15,682
Income before income tax expense	25,623	6,176
Income tax expense	6,946	1,625
Net income	$ 18,677	$ 4,551
Net income per common share:
Basic (usd per share)	$ 0.38	$ 0.10
Diluted (usd per share)	$ 0.38	$ 0.10
Unrealized (losses) gains on debt securities available-for-sale:
Net unrealized holding (losses) gains	$ (1,144)	$ 8,310
Less: reclassification adjustment for net (gains) losses included in net income	(97)	13
Net unrealized (losses) gains	(1,241)	8,323
Income tax benefit (expense) related to net unrealized holding (losses) gains on debt securities available-for-sale	321	(2,326)
Income tax expense (benefit) related to reclassification adjustment for (gains) losses included in net income	27	(3)
Other comprehensive (loss) income, net of tax	(893)	5,994
Comprehensive income	$ 17,784	$ 10,545

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 (shares) at Dec. 31, 2019				49,175,347
Beginning Balance at Dec. 31, 2019	$ 695,853			$ 609		$ 548,486		$ (19,740)		$ 322,581			$ 4,699		$ (160,782)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,551									4,551
Other comprehensive income (loss), net of tax	5,994												5,994
ESOP shares allocated or committed to be released	446					198		248
Stock compensation expense	448					448
Issuance of restricted stock (in shares)				103,581
Issuance of restricted stock	0					(1,416)									1,416
Exercise of stock options, net (shares)				13,000
Exercise of stock options, net	175					(4)									179
Cash dividends declared and paid	(5,151)									(5,151)
Ending Balance (shares) at Mar. 31, 2020				49,291,928
Ending Balance at Mar. 31, 2020	702,316			$ 609		547,712		(19,492)		321,981			10,693		(159,187)
Beginning Balance (shares) at Dec. 31, 2019				49,175,347
Beginning Balance at Dec. 31, 2019	$ 695,853			$ 609		548,486		(19,740)		322,581			4,699		(160,782)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Ending Balance (shares) at Dec. 31, 2020				52,209,897	52,209,897
Ending Balance at Dec. 31, 2020	$ 753,981	$ (3,087)	$ 750,894	$ 648	$ 648	590,506	$ 590,506	(18,529)	$ (18,529)	338,093	$ (3,087)	$ 335,006	13,160	$ 13,160	(169,897)	$ (169,897)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	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
Issuance of restricted stock (in shares)				147,307
Issuance of restricted stock	0					(1,821)									1,821
Restricted stock forfeitures (in shares)				(1,674)
Restricted stock forfeitures	$ 0					26									(26)
Exercise of stock options, net (shares)	54,990			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 (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)

Consolidated Statements of Ch_2

Consolidated Statements of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (usd per share)	$ 0.11	$ 0.11
Dividends paid per share (usd per share)	0.11	$ 0.11
Treasury stock repurchased cost per share (usd per share)	$ 13.64

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Cash Flows [Abstract]
Net income	$ 18,677	$ 4,551
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(2,374)	8,183
ESOP and stock compensation expense	656	894
Depreciation	972	795
Amortization of premiums, and deferred loan costs, net of (accretion) discounts, and deferred loan fees	564	1,065
Amortization of intangible assets	50	55
Amortization of operating lease right-of-use assets	1,079	1,059
Income on bank-owned life insurance	(848)	(876)
Net gain on sale of loans held-for-sale	(39)	0
(Gains) losses on available-for-sale debt securities, net	(97)	13
(Gains) losses on trading securities, net	(364)	1,992
Net sales of trading securities	513	842
(Increase) decrease in accrued interest receivable	(63)	311
Decrease (increase) in other assets	2,905	(1,023)
Decrease in accrued expenses and other liabilities	(1,433)	(5,912)
Net cash provided by operating activities	20,198	11,949
Cash flows from investing activities:
Net increase in loans receivable	(107,720)	(72,609)
Proceeds from sale of loans held-for-sale	23,537	0
Purchases of FHLB of New York stock	0	(7,515)
Redemptions of FHLB of New York stock	0	17,235
Purchases of debt securities available-for-sale	(103,743)	(26,320)
Purchases of equity securities	(220)	(142)
Principal payments and maturities on debt securities available-for-sale	152,892	110,946
Principal payments and maturities on debt securities held-to-maturity	306	52
Proceeds from sale of debt securities available-for-sale	5,942	0
Proceeds from bank-owned life insurance	0	2
Purchases and improvements of premises and equipment	(293)	(806)
Net cash (used in) provided by investing activities	(29,299)	20,843
Cash flows from financing activities:
Net increase in deposits	59,165	77,313
Dividends paid	(5,447)	(5,151)
Exercise of stock options	808	175
Purchase of treasury stock	(10,130)	0
Increase in advance payments by borrowers for taxes and insurance	4,350	2,399
Proceeds from securities sold under agreements to repurchase and other borrowings	381	220,353
Repayments related to securities sold under agreements to repurchase and other borrowings	0	(361,000)
Net cash provided by (used in) financing activities	49,127	(65,911)
Net increase (decrease) in cash and cash equivalents	40,026	(33,119)
Cash and cash equivalents at beginning of period	87,544	147,818
Cash and cash equivalents at end of period	127,570	114,699
Cash paid during the period for:
Interest	5,042	13,003
Income taxes	496	550
Non-cash transactions:
Loan charge-offs, net	2,389	90
Transfer of loans held-for-investment to loans-held-for-sale at fair value	5,215	0
Transfer of loans held-for-sale at fair value to loans held-for-investment	1,612	0
Transfer of loans held-for-investment to other real estate owned	100	0
Right-of-use assets obtained in exchange for new lease liabilities	$ 0	$ 3,028

Consolidated Financial Statemen

Consolidated Financial Statements	3 Months Ended
	Mar. 31, 2021
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, 2021 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2021 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 the consolidated statements of comprehensive income for the periods indicated. Material estimates that are particularly susceptible to change are: the allowance for loan 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. Certain information and note disclosures usually included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission ( “ SEC ” ) for the preparation of interim financial statements. The consolidated financial statements presented should be read in conjunction with the audited consolidated financial statements and notes to consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2020, as filed with the SEC. Loans and Allowance for Credit Losses On January 1, 2021, the Company adopted ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): “Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”) which replaces the incurred loss methodology with an expected loss methodology that is referred to as the current expected credit loss (“CECL”) methodology. The Company used the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet credit exposures. The adoption of the new standard resulted in the Company recording an increase in the allowance for credit losses of $11.1 million, comprised of $10.4 million and $737,000, respectively, for loans and unfunded commitments, including $6.8 million related to PCD loans. For PCD loans, the allowance for credit losses recorded is recognized through a gross-up that increases the amortized cost basis of loans with a corresponding increase to the allowance for credit losses, and therefore results in no impact to shareholders' equity. The remaining increase to the allowance for credit losses of $4.3 million was offset in stockholders' equity and deferred taxes. As a result of adopting CECL, the Company's prior distinction between the originated loan portfolio and the non-PCD acquired loan portfolio is no longer necessary. Results for reporting periods beginning after January 1, 2021 are presented under CECL, while prior period amounts continue to be recorded with previously applicable U.S. GAAP. Further information regarding the impact of CECL can be found in Note 6 - Loans, Note 7 - Allowance for Loan Losses and Note 15 - Recent Accounting Pronouncements Adopted. COVID-19 On March 13, 2020, the Coronavirus Disease (COVID-19) pandemic was declared a national emergency in the United States. The spread of COVID-19 has negatively impacted the national and local economy, disrupted supply chains and increased unemployment levels. The initial temporary closure and gradual reopening of many businesses and the implementation of social distancing and stay-at-home policies has and will continue to impact many of the Company’s customers. The Company is committed to supporting its customers, employees and communities during this time of recovery and continues to update protocols to adapt to the changing environment. The Company's bank branches offer drive through services without interruption, while lobbies are fully open or accessible to clients via appointment. The Company continues to provide secure and efficient remote and in-person work options for back office employees. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security (“CARES”) Act was signed into law. It contains substantial tax and spending provisions intended to address the impact of the COVID-19 pandemic. The CARES Act includes a range of other provisions designed to support the U.S. economy and mitigate the impact of COVID-19 on financial institutions and their customers, including through the authorization of various relief programs and measures that the U.S. Department of the Treasury, the Small Business Administration, the Board of Governors of the Federal Reserve System, and other federal banking agencies have implemented or may implement. The CARES Act also includes a provision that permits a financial institution to elect to suspend temporarily TDR accounting under current U.S. generally accepted accounting principles (“U.S. GAAP”) in certain circumstances. To be eligible, a loan modification must be: (1) related to COVID-19; (2) executed on a loan that was not more than 30 days past due as of December 31, 2019; and (3) executed between March 1, 2020, and the earlier of (a) 60 days after the date of termination of the national emergency or (b) December 31, 2020. This relief was further extended by the Consolidated Appropriations Act to the earlier of January 1, 2022 or 60 days after the date of termination of the national emergency. The relief provided includes short-term (e.g., up to six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. The banking regulators issued similar guidance, which also clarified that a COVID-19-related modification should not be considered a TDR if the borrower was current on payments at the time the underlying loan modification program was implemented and if the modification is considered to be short-term. In response to the COVID-19 pandemic and its economic impact to customers, the Company introduced a short-term modification program in March 2020 that provided temporary payment relief to those borrowers directly impacted by COVID-19. The program allows for a deferral of payments typically for 90 days, which may be extended for additional 90 day periods. See Note 6 - Loans for additional details of the Company's loan modification program. A provision in the CARES Act provides for a loan guarantee program called the Paycheck Protection Program (“PPP”), which provides 100% federally guaranteed loans for small businesses to cover payroll, utilities, rent and interest. These small business loans are fully guaranteed by the Small Business Administration (“SBA”) and may be forgiven if borrowers maintain their payrolls and satisfy certain other conditions for a period of time during the COVID-19 pandemic. As of March 31, 2021, the Company had originated over 1,757 PPP loans to new and existing customers, totaling approximately $167.9 million. PPP provides for lender processing fees that range from 1% to 5% of the final disbursement made to individual borrowers. As of March 31, 2021, we have received cumulative loan processing fees of $8.8 million, of which $3.1 million has been recognized in earnings through March 31, 2021, including $1.3 million recognized in the quarter ended March 31, 2021. The remaining unearned fees will be recognized in income over the remaining term of the loans. PPP loans are fully guaranteed by the SBA and are therefore excluded from the allowance for loan and lease losses calculation. The Company continues to maintain a strong liquidity and capital position as a buffer to protect against the economic uncertainties presented by the COVID-19 pandemic. As of March 31, 2021, both the Company and the Bank's capital ratios were in excess of regulatory requirements and are both currently classified as well capitalized. The Company maintains access to multiple sources of liquidity and expects to have sufficient funds available to meet current commitments in the normal course of business.

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2021
Business Combinations [Abstract]
Business Combinations	Business Combinations On July 1, 2020, the Company completed its acquisition of VSB Bancorp, Inc. (“Victory”), parent company of Victory State Bank, in a stock transaction, which after purchase accounting adjustments added $402.8 million to total assets, including $180.4 million to loans, and $354.6 million to deposits, and six branch offices in Staten Island, New York. Under the terms of the merger agreement, each share of Victory common stock was exchanged for 2.0463 shares of Northfield common stock with fractional shares paid out in cash. The transaction was accounted for under the acquisition method of accounting. Under this method of accounting, the purchase price has been allocated to the respective assets acquired and liabilities assumed based upon their estimated fair values, net of tax, as of July 1, 2020, and results of operations have been included in the Company's consolidated statements of income from that date forward. The excess of consideration paid over the fair value of the net assets acquired has been recorded as goodwill. The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition for Victory (in thousands): At July 1, 2020 Fair Value Total Purchase Price $ 41,173 Assets acquired: Cash and cash equivalents $ 72,875 Debt securities available for sale 126,931 Loans 180,431 Accrued interest receivable 1,415 Bank-owned life insurance 5,714 Premises and equipment 7,789 Other assets 4,702 Total assets acquired 399,857 Liabilities assumed: Deposits 354,592 Other liabilities 7,001 Total liabilities assumed 361,593 Net assets acquired $ 38,264 Goodwill recorded in the merger $ 2,909 The calculation of goodwill is subject to change for up to one year after the date of acquisition as additional information that existed as of the acquisition date estimates and uncertainties become available. As the Company finalizes its review of the acquired assets and liabilities, certain adjustments to the recorded carrying values may be required. Fair Value Measurement of Assets Assumed and Liabilities Assumed Described below are the methods used to determine the fair value of the significant assets acquired and liabilities assumed in the Victory acquisition. Cash and cash equivalents. The estimated fair values of cash and cash equivalents approximate their stated face amounts, as these financial instruments are either due on demand or have short-term maturities. Debt securities Available-for-Sale. The estimated fair values of the securities were calculated utilizing Level 2 inputs. Prices for the securities were obtained from an independent nationally recognized third-party pricing service. Loans. The acquired loan portfolio was valued based on current guidance which defines fair value as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. Level 3 inputs were utilized to value the portfolio and included the use of present value techniques employing cash flow estimates and the incorporated assumptions that marketplace participants would use in estimating fair values. In instances where reliable market information was not available, the Company used its own assumptions in an effort to determine reasonable fair value. Specifically, management utilized three separate fair value analyses which a market participant would employ in estimating the total fair value adjustment. The three separate fair valuation methodologies used were: 1) interest rate loan fair value analysis; 2) general credit fair value adjustment; and 3) specific credit fair value adjustment. To prepare the interest rate fair value analysis, loans were grouped by characteristics such as loan type, term, collateral and rate. Market rates for similar loans were obtained from various external data sources and reviewed by Company management for reasonableness. The average of these rates was used as the fair value interest rate a market participant would utilize. A present value approach was utilized to calculate the interest rate fair value adjustment. The general credit fair value adjustment was calculated using a two-part general credit fair value analysis: 1) expected credit losses; and 2) estimated fair value adjustment for qualitative factors. The expected credit losses were calculated using an average of historical losses of the acquired bank and industry bench mark loss rates observed for loans with similar underlying characteristics. The adjustment related to qualitative factors was impacted by general economic conditions and the risk related to lack of familiarity with the originator's underwriting process. To calculate the specific credit fair value adjustment, management reviewed the acquired loan portfolio for loans meeting the definition of an impaired loan with deteriorated credit quality. Loans meeting this definition were reviewed by comparing the contractual cash flows to expected collectible cash flows. The aggregate expected cash flows less the acquisition date fair value resulted in an accretable yield amount. The accretable yield amount will be recognized over the life of the loans on a level yield basis as an adjustment to yield. The following is a summary of the credit impaired loans acquired in the Victory acquisition as of the closing date (in thousands): July 1, 2020 Contractually required principal and interest $ 7,809 Contractual cash flows not expected to be collected (non-accretable discount) 3,315 Expected cash flows to be collected at acquisition 4,494 Interest component of expected cash flows (accretable yield) (599) Fair value of acquired loans $ 3,895 Leases. Five lease obligations were added as part of the acquisition, and the Company recorded a $2.5 million operating lease right-of-use asset and operating lease liability for these lease obligations.

Debt Securities Available-for-S

Debt Securities Available-for-Sale	3 Months Ended
	Mar. 31, 2021
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 and other debt securities available-for-sale at March 31, 2021, and December 31, 2020 (in thousands): March 31, 2021 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 2,758 $ — $ (68) $ 2,690 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 244,399 9,522 (358) 253,563 Real estate mortgage investment conduits ("REMICs"): GSE 818,623 7,392 (322) 825,693 1,063,022 16,914 (680) 1,079,256 Other debt securities: Municipal bonds 102 1 — 103 Corporate bonds 123,732 891 (181) 124,442 Asset-backed securities 733 14 — 747 124,567 906 (181) 125,292 Total debt securities available-for-sale $ 1,190,347 $ 17,820 $ (929) $ 1,207,238 December 31, 2020 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 3,168 $ — $ (10) $ 3,158 Mortgage-backed securities: Pass-through certificates: GSE 270,867 10,720 (244) 281,343 REMICs: GSE 884,414 7,027 (476) 890,965 Non-GSE 4 — — 4 1,155,285 17,747 (720) 1,172,312 Other debt securities: Municipal bonds 122 1 — 123 Corporate bonds 87,319 1,099 — 88,418 Asset-backed securities 779 15 — 794 88,220 1,115 — 89,335 Total debt securities available-for-sale $ 1,246,673 $ 18,862 $ (730) $ 1,264,805 The following is a summary of the expected maturity distribution of debt securities available-for-sale, other than mortgage-backed securities, at March 31, 2021 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 25,288 $ 25,872 Due after one year through five years 83,535 83,815 Due after five years through ten years 17,769 17,548 Due after ten years 733 747 $ 127,325 $ 127,982 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, 2021, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $587.2 million. 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 related to sales of securities. For the three months ended March 31, 2020, the Company had no gross proceeds on sales of debt securities available-for-sale, no gross realized gains, and gross realized losses of $13,000 related to calls of securities. The Company recognized net gains of $364,000 on its trading securities portfolio during the three months ended March 31, 2021, and net losses of $2.0 million during the three months ended March 31, 2020. Gross unrealized losses on mortgage-backed 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, 2021, and December 31, 2020, were as follows (in thousands): March 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 $ (68) $ 2,690 $ — $ — $ (68) $ 2,690 Mortgage-backed securities: Pass-through certificates: GSE (353) 33,531 (5) 254 (358) 33,785 REMICs: GSE (322) 57,352 — — (322) 57,352 Other debt securities: Corporate bonds (181) 35,274 — — (181) 35,274 Total $ (924) $ 128,847 $ (5) $ 254 $ (929) $ 129,101 December 31, 2020 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 (10) $ 3,158 $ — $ — $ (10) $ 3,158 Mortgage-backed securities: Pass-through certificates: GSE (233) 28,419 (11) 459 (244) 28,878 REMICs: GSE (476) 210,569 — — (476) 210,569 Total $ (719) $ 242,146 $ (11) $ 459 $ (730) $ 242,605 The Company held six pass-through mortgage-backed securities issued or guaranteed by GSEs that were in a continuous unrealized loss position of twelve months or greater at March 31, 2021. There were 22 pass-through mortgage-backed securities issued or guaranteed by GSEs, 44 REMIC mortgage-backed securities issued or guaranteed by GSEs, five corporate bonds and one U.S. Government agency security that were in an unrealized loss position of less than 12 months at March 31, 2021. All securities referred to above were rated investment grade at March 31, 2021. Available for sale debt securities in unrealized loss positions are evaluated for impairment related to credit losses on a quarterly basis. In performing an assessment of whether any decline in fair value is due to a credit loss, the Company considers the extent to which the fair value is less than the amortized cost, changes in credit ratings, any adverse economic conditions, as well as all relevant information at the individual security level such as credit deterioration of the issuer or collateral underlying the security. In assessing the impairment, the Company compares the present value of cash flows expected to be collected with the amortized cost basis of the security. If it is determined that the decline in fair value was due to credit losses, an allowance for credit losses is recorded, limited to the amount the fair value is less than amortized cost basis. The Company did not recognize any allowance for credit losses on its available-for-sale debt securities during the three months ended March 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. The Company has made the accounting policy election to exclude accrued interest receivable on available-for-sale securities from the estimate of credit losses. Accrued interest receivable associated with debt securities available-for-sale totaling $1.5 million at March 31, 2021, is reported in accrued interest receivable on the consolidated balance sheet.

Debt Securities Held-to-Maturit

Debt Securities Held-to-Maturity	3 Months Ended
	Mar. 31, 2021
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, 2021, and December 31, 2020 (in thousands): March 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSE $ 6,913 $ 328 $ — $ 7,241 Total securities held-to-maturity $ 6,913 $ 328 $ — $ 7,241 December 31, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSE $ 7,234 $ 340 $ — $ 7,574 Total securities held-to-maturity $ 7,234 $ 340 $ — $ 7,574 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, 2021 or March 31, 2020. At March 31, 2021, debt securities held-to-maturity with a carrying value of $5.9 million were pledged to secure borrowings and deposits. At March 31, 2021 and December 31, 2020, there were no debt securities held-to-maturity in an unrealized loss position. 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 $20,800 at March 31, 2021, is reported in accrued interest receivable on the consolidated balance sheet.

Equity Securities

Equity Securities	3 Months Ended
	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Equity Securities	Debt Securities Available-for-Sale The following is a comparative summary of mortgage-backed and other debt securities available-for-sale at March 31, 2021, and December 31, 2020 (in thousands): March 31, 2021 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 2,758 $ — $ (68) $ 2,690 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 244,399 9,522 (358) 253,563 Real estate mortgage investment conduits ("REMICs"): GSE 818,623 7,392 (322) 825,693 1,063,022 16,914 (680) 1,079,256 Other debt securities: Municipal bonds 102 1 — 103 Corporate bonds 123,732 891 (181) 124,442 Asset-backed securities 733 14 — 747 124,567 906 (181) 125,292 Total debt securities available-for-sale $ 1,190,347 $ 17,820 $ (929) $ 1,207,238 December 31, 2020 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 3,168 $ — $ (10) $ 3,158 Mortgage-backed securities: Pass-through certificates: GSE 270,867 10,720 (244) 281,343 REMICs: GSE 884,414 7,027 (476) 890,965 Non-GSE 4 — — 4 1,155,285 17,747 (720) 1,172,312 Other debt securities: Municipal bonds 122 1 — 123 Corporate bonds 87,319 1,099 — 88,418 Asset-backed securities 779 15 — 794 88,220 1,115 — 89,335 Total debt securities available-for-sale $ 1,246,673 $ 18,862 $ (730) $ 1,264,805 The following is a summary of the expected maturity distribution of debt securities available-for-sale, other than mortgage-backed securities, at March 31, 2021 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 25,288 $ 25,872 Due after one year through five years 83,535 83,815 Due after five years through ten years 17,769 17,548 Due after ten years 733 747 $ 127,325 $ 127,982 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, 2021, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $587.2 million. 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 related to sales of securities. For the three months ended March 31, 2020, the Company had no gross proceeds on sales of debt securities available-for-sale, no gross realized gains, and gross realized losses of $13,000 related to calls of securities. The Company recognized net gains of $364,000 on its trading securities portfolio during the three months ended March 31, 2021, and net losses of $2.0 million during the three months ended March 31, 2020. Gross unrealized losses on mortgage-backed 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, 2021, and December 31, 2020, were as follows (in thousands): March 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 $ (68) $ 2,690 $ — $ — $ (68) $ 2,690 Mortgage-backed securities: Pass-through certificates: GSE (353) 33,531 (5) 254 (358) 33,785 REMICs: GSE (322) 57,352 — — (322) 57,352 Other debt securities: Corporate bonds (181) 35,274 — — (181) 35,274 Total $ (924) $ 128,847 $ (5) $ 254 $ (929) $ 129,101 December 31, 2020 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 (10) $ 3,158 $ — $ — $ (10) $ 3,158 Mortgage-backed securities: Pass-through certificates: GSE (233) 28,419 (11) 459 (244) 28,878 REMICs: GSE (476) 210,569 — — (476) 210,569 Total $ (719) $ 242,146 $ (11) $ 459 $ (730) $ 242,605 The Company held six pass-through mortgage-backed securities issued or guaranteed by GSEs that were in a continuous unrealized loss position of twelve months or greater at March 31, 2021. There were 22 pass-through mortgage-backed securities issued or guaranteed by GSEs, 44 REMIC mortgage-backed securities issued or guaranteed by GSEs, five corporate bonds and one U.S. Government agency security that were in an unrealized loss position of less than 12 months at March 31, 2021. All securities referred to above were rated investment grade at March 31, 2021. Available for sale debt securities in unrealized loss positions are evaluated for impairment related to credit losses on a quarterly basis. In performing an assessment of whether any decline in fair value is due to a credit loss, the Company considers the extent to which the fair value is less than the amortized cost, changes in credit ratings, any adverse economic conditions, as well as all relevant information at the individual security level such as credit deterioration of the issuer or collateral underlying the security. In assessing the impairment, the Company compares the present value of cash flows expected to be collected with the amortized cost basis of the security. If it is determined that the decline in fair value was due to credit losses, an allowance for credit losses is recorded, limited to the amount the fair value is less than amortized cost basis. The Company did not recognize any allowance for credit losses on its available-for-sale debt securities during the three months ended March 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. The Company has made the accounting policy election to exclude accrued interest receivable on available-for-sale securities from the estimate of credit losses. Accrued interest receivable associated with debt securities available-for-sale totaling $1.5 million at March 31, 2021, is reported in accrued interest receivable on the consolidated balance sheet.

Loans

Loans	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Loans	Loans On January 1, 2021, the Company adopted the CECL standard for measuring credit losses, which replaced the incurred loss methodology. As a result of adopting CECL, the Company combined it’s originated loan portfolio and the acquired loan portfolio into the respective portfolio segments. Other than to combine the originated and non-PCD acquired loan portfolios, the Company's portfolio segments and loan classes remain unchanged following the adoption of the CECL standard. Prior period disclosures have been revised to conform to current period presentation (by combining originated and acquired portfolio segments), however, the Company did not recast comparative financial information and that is still presented in accordance with previous applicable U.S. GAAP. The following table summarizes the Company’s loans held-for-investment (in thousands): March 31, December 31, 2021 2020 Real estate loans: Multifamily $ 2,571,409 $ 2,509,310 Commercial mortgage 734,113 716,973 One-to-four family residential mortgage 202,948 210,817 Home equity and lines of credit 93,118 91,126 Construction and land 77,206 74,318 Total real estate loans 3,678,794 3,602,544 Commercial and industrial loans (1) 234,518 194,352 Other loans 1,658 3,029 Total commercial and industrial and other loans 236,176 197,381 Deferred origination loan costs, net (1) — 4,795 Loans held-for-investment, net (excluding PCD/PCI) 3,914,970 3,804,720 PCD/PCI loans 18,045 18,518 Total Loans held-for-investment, net 3,933,015 3,823,238 Allowance for loan losses (43,197) (37,607) Net loans held-for-investment $ 3,889,818 $ 3,785,631 (1) Under CECL origination deferred fees, deferred fees on acquired loans, and purchase accounting adjustments in connection with loans acquired are included in loans by respective portfolio. (2) Included in commercial and industrial loans at March 31, 2021 and December 31, 2020 are PPP loans totaling $167.9 million and $126.5 million, respectively. The Company had no loans held-for-sale at March 31, 2021. At December 31, 2020, loans held-for-sale totaled $19.9 million. 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 purchased credit deteriorated (“PCD”) loans. In accordance with ASU 2016-13, with its adoption of the CECL standard, the Company did not reassess whether previously recognized purchased credit impaired (“PCI”) loans accounted for under prior accounting guidance met the criteria of a PCD loan as of the date of adoption and all loans considered to be PCI prior to the adoption of CECL were converted to PCD upon adoption. 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 $18.0 million at March 31, 2021, as compared to $18.5 million of PCI loans at December 31, 2020. 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, 2021, PCD loans consisted of approximately 16% one-to-four family residential loans, 26% commercial real estate loans and 44% commercial and industrial loans, with the remaining balance in construction and home equity loans. At December 31, 2020, PCI loans consisted of approximately 22% one-to-four family residential loans, 23% commercial real estate loans and 40% commercial and industrial loans, with the remaining balance in 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 loan losses and the allowance for loan losses for originated loans held-for-investment. After determining the loss factor for each originated 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 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, as of March 31, 2021 (in thousands): March 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Total Real Estate: Multifamily Pass $ 161,305 $ 562,841 $ 407,309 $ 345,635 $ 283,681 $ 793,689 $ 44 $ 2,554,504 Special Mention — — — — — 450 — 450 Substandard — — 4,691 3,361 — 8,403 — 16,455 Total multifamily 161,305 562,841 412,000 348,996 283,681 802,542 44 2,571,409 Commercial Pass 33,829 72,556 100,207 92,969 66,730 312,858 3,583 682,732 Special Mention — — 1,297 9,046 — 9,506 500 20,349 Substandard — 2,470 9,660 328 4,079 14,495 — 31,032 Total commercial 33,829 75,026 111,164 102,343 70,809 336,859 4,083 734,113 One-to-four family residential Pass 966 9,689 14,189 15,717 13,097 141,652 1,613 196,923 Special Mention — — 467 — — 2,428 — 2,895 Substandard — — 600 — — 2,530 — 3,130 Total one-to-four family residential 966 9,689 15,256 15,717 13,097 146,610 1,613 202,948 Construction and land Pass 6,654 14,328 5,760 36,750 7,515 3,641 1,018 75,666 Special Mention — — — — — — — — Substandard — — 1,150 390 — — — 1,540 Total construction and land 6,654 14,328 6,910 37,140 7,515 3,641 1,018 77,206 Home equity and lines of credit Pass 3,831 14,641 9,894 8,832 3,315 13,848 38,019 92,380 Special Mention — — — — — 306 — 306 Substandard — — 99 88 — 245 — 432 Total home equity and lines of credit 3,831 14,641 9,993 8,920 3,315 14,399 38,019 93,118 Total Real Estate Loans 206,585 676,525 555,323 513,116 378,417 1,304,051 44,777 3,678,794 Commercial and industrial Pass 67,372 113,363 6,407 3,462 1,356 12,961 26,406 231,327 Special Mention — 81 210 42 147 324 — 804 Substandard — 499 360 666 — 862 — 2,387 Total commercial and industrial 67,372 113,943 6,977 4,170 1,503 14,147 26,406 234,518 Other Pass 1,257 191 32 51 — 51 73 1,655 Substandard — — — — — 3 — 3 Total other 1,257 191 32 51 — 54 73 1,658 Total loans held-for-investment, net $ 275,214 $ 790,659 $ 562,332 $ 517,337 $ 379,920 $ 1,318,252 $ 71,256 $ 3,914,970 The following table details the recorded investment of loans held-for-investment, excluding PCI loans, net of deferred fees and costs, by loan type and credit quality indicator at December 31, 2020 (in thousands): At December 31, 2020 Real Estate Multifamily Commercial One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total Internal Risk Rating Pass $ 2,497,556 $ 667,568 $ 207,633 $ 74,351 $ 92,385 $ 189,372 $ 3,026 $ 3,731,891 Special Mention 458 20,422 2,456 — 311 498 — 24,145 Substandard 14,920 29,576 2,133 — 441 1,611 3 48,684 Total loans held-for-investment, net $ 2,512,934 $ 717,566 $ 212,222 $ 74,351 $ 93,137 $ 191,481 $ 3,029 $ 3,804,720 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 $8.4 million and $8.5 million at March 31, 2021, and December 31, 2020, respectively. Generally, 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 troubled debt restructures (“TDRs”) are individually evaluated. The non-accrual amounts included in loans individually evaluated for impairment were $5.4 million and $5.5 million at March 31, 2021, and December 31, 2020, respectively. Loans on non-accrual status with principal balances less than $500,000, and therefore not individually evaluated for impairment, amounted to $3.0 million at March 31, 2021, and $3.0 million at December 31, 2020. Loans past due 90 days or more and still accruing interest were $1.6 million at March 31, 2021, and $1.1 million at December 31, 2020, and consisted of loans that are considered well-secured and in the process of collection. The Company had no loans held-for-sale at March 31, 2021. At December 31, 2020, the Company had $19.9 million in loans held-for-sale. At December 31, 2020, the loans held-for-sale were comprised of commercial real estate and multifamily loans, primarily accommodation (hotel or motel) loans that were modified in the form of interest and/or principal payment deferrals due to COVID-19 related hardships, and had not returned to contractual payments after 180 days of relief. The sale of these loans was completed in March 2021. 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, 2021, and December 31, 2020, excluding PCD/PCI loans (in thousands): March 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: Commercial Substandard $ 2,817 $ 100 $ 2,044 $ 4,961 $ 219 $ 5,180 Total commercial 2,817 100 2,044 4,961 219 5,180 One-to-four family residential Substandard 406 — 399 805 172 977 Total one-to-four family residential 406 — 399 805 172 977 Construction and land Substandard — — 1,150 1,150 — 1,150 Total construction and land — — 1,150 1,150 — 1,150 Multifamily Substandard — — 1,145 1,145 516 1,661 Total multifamily — — 1,145 1,145 516 1,661 Home equity and lines of credit Substandard 58 — 129 187 — 187 Total home equity and lines of credit 58 — 129 187 — 187 Total real estate 3,281 100 4,867 8,248 907 9,155 Commercial and industrial loans Pass — — — — 92 92 Special Mention — — — — 85 85 Substandard 1 36 161 198 561 759 Total commercial and industrial loans 1 36 161 198 738 936 Other loans Pass — — — — 3 3 Total other — — — — 3 3 Total non-performing loans $ 3,282 $ 136 $ 5,028 $ 8,446 $ 1,648 $ 10,094 December 31, 2020 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: Commercial Pass $ — $ — $ — $ — $ 500 $ 500 Substandard 2,829 537 2,863 6,229 — $ 6,229 Total commercial 2,829 537 2,863 6,229 500 6,729 One-to-four family residential Substandard 413 — 493 906 174 1,080 Total one-to-four family residential 413 — 493 906 174 1,080 Multifamily Substandard — — 1,153 1,153 — 1,153 Total multifamily — — 1,153 1,153 — 1,153 Home equity and lines of credit Substandard 60 — 131 191 — 191 Total home equity and lines of credit 60 — 131 191 — 191 Total real estate 3,302 537 4,640 8,479 674 9,153 Commercial and industrial loans Pass — — — — 101 101 Special Mention — — — — 85 85 Substandard — — 37 37 250 287 Total commercial and industrial loans — — 37 37 436 473 Other loans Pass — — — — 3 3 Total other — — — — 3 3 Total non-performing loans $ 3,302 $ 537 $ 4,677 $ 8,516 $ 1,113 $ 9,629 The following tables set forth the detail and delinquency status of loans held-for-investment, excluding PCD/PCI loans, net of deferred fees and costs, at March 31, 2021, and December 31, 2020 (in thousands): March 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: Commercial Pass $ 1,651 $ — $ — $ 1,651 $ 681,081 $ 682,732 Special Mention — — — — 20,349 20,349 Substandard 2,906 2,044 219 5,169 25,863 31,032 Total commercial 4,557 2,044 219 6,820 727,293 734,113 One-to-four family residential Pass 1,827 — — 1,827 195,096 196,923 Special Mention 1,085 — — 1,085 1,810 2,895 Substandard 1,111 399 172 1,682 1,448 3,130 Total one-to-four family residential 4,023 399 172 4,594 198,354 202,948 Construction and land Pass — — — — 75,666 75,666 Substandard 390 1,150 — 1,540 — 1,540 Total construction and land 390 1,150 — 1,540 75,666 77,206 Multifamily Pass 1,256 — — 1,256 2,553,248 2,554,504 Special Mention — — — — 450 450 Substandard 1,163 1,145 516 2,824 13,631 16,455 Total multifamily 2,419 1,145 516 4,080 2,567,329 2,571,409 Home equity and lines of credit Pass 229 — — 229 92,151 92,380 Special Mention 44 — — 44 262 306 Substandard 99 129 — 228 204 432 Total home equity and lines of credit 372 129 — 501 92,617 93,118 Total real estate 11,761 4,867 907 17,535 3,661,259 3,678,794 Commercial and industrial Pass 1,471 — 92 1,563 229,764 231,327 Special Mention 259 — 85 344 460 804 Substandard 785 161 561 1,507 880 2,387 Total commercial and industrial 2,515 161 738 3,414 231,104 234,518 Other loans Pass 7 — — 7 1,648 1,655 Substandard — — 3 3 — 3 Total other loans 7 — 3 10 1,648 1,658 Total loans held-for-investment $ 14,283 $ 5,028 $ 1,648 $ 20,959 $ 3,894,011 $ 3,914,970 December 31, 2020 Performing (Accruing) Loans 0-29 Days Past Due 30-89 Days Past Due Total Non-Performing Loans Total Loans Receivable, net Loans held-for-investment: Real estate loans: Commercial Pass $ 660,996 $ 6,072 $ 667,068 $ 500 $ 667,568 Special Mention 20,350 72 20,422 — 20,422 Substandard 20,699 2,648 23,347 6,229 29,576 Total commercial 702,045 8,792 710,837 6,729 717,566 One-to-four family residential Pass 207,351 282 207,633 — 207,633 Special Mention 1,586 870 2,456 — 2,456 Substandard 1,053 — 1,053 1,080 2,133 Total one-to-four family residential 209,990 1,152 211,142 1,080 212,222 Construction and land Pass 73,357 994 74,351 — 74,351 Total construction and land 73,357 994 74,351 — 74,351 Multifamily Pass 2,496,273 1,283 2,497,556 — 2,497,556 Special Mention 458 — 458 — 458 Substandard 13,157 610 13,767 1,153 14,920 Total multifamily 2,509,888 1,893 2,511,781 1,153 2,512,934 Home equity and lines of credit Pass 92,305 80 92,385 — 92,385 Special Mention 111 200 311 — 311 Substandard 150 100 250 191 441 Total home equity and lines of credit 92,566 380 92,946 191 93,137 Total real estate 3,587,846 13,211 3,601,057 9,153 3,610,210 Commercial and industrial Pass 188,639 632 189,271 101 189,372 Special Mention 352 61 413 85 498 Substandard 1,257 67 1,324 287 1,611 Total commercial and industrial 190,248 760 191,008 473 191,481 Other loans Pass 3,015 11 3,026 — 3,026 Substandard — — — 3 3 Total other loans 3,015 11 3,026 3 3,029 Total loans held-for-investment, net $ 3,781,109 $ 13,982 $ 3,795,091 $ 9,629 $ 3,804,720 The following table summarizes information on non-accrual loans, excluding PCD loans, at March 31, 2021 (in thousands): At or for the Three Months Ended March 31, 2021 Recorded Investment Unpaid Principal Balance With No Related Allowance Interest Income Real estate loans: Commercial $ 4,961 $ 5,471 $ 3,275 $ 25 One-to-four family residential 805 836 228 6 Construction and land 1,150 1,150 1,150 — Multifamily 1,145 1,154 — 14 Home equity and lines of credit 187 436 — 2 Commercial and industrial 198 392 1 2 Total non-accrual loans $ 8,446 $ 9,439 $ 4,654 $ 49 The following table summarizes impaired loans as of December 31, 2020 (in thousands): December 31, 2020 Recorded Investment Unpaid Principal Balance Related Allowance With No Allowance Recorded: Real estate loans: Commercial $ 8,838 $ 10,076 $ — One-to-four family residential 1,903 2,032 — Multifamily 626 1,097 — Home equity and lines of credit 15 15 — Total Real Estate 11,382 13,220 — With a Related Allowance Recorded: Real estate loans: Commercial 1,812 2,244 (66) Home equity and lines of credit 32 32 (3) Total Real Estate 1,844 2,276 (69) Commercial and industrial loans 16 16 (4) Total: Real estate loans Commercial 10,650 12,320 (66) One-to-four family residential 1,903 2,032 — Multifamily 626 1,097 — Home equity and lines of credit 47 47 (3) Commercial and industrial loans 16 16 (4) $ 13,242 $ 15,512 $ (73) Included in the table above at December 31, 2020, are impaired loans with carrying balances of $7.8 million that were not written down by charge-offs or for which there are no specific reserves in our allowance for loan losses. Loans not written down by charge-offs or specific reserves at December 31, 2020, are considered to have sufficient collateral values, less costs to sell, to support the carrying balances of the loans. The following table summarizes the average recorded investment in impaired loans, excluding PCI loans, and interest income recognized as of, and for, the three months March 31, 2020 (in thousands): March 31, 2020 Average Recorded Investment Interest Income With No Allowance Recorded: Real estate loans: Commercial $ 16,198 $ 112 One-to-four family residential 2,464 33 Multifamily 1,036 13 Home equity and lines of credit 21 — Commercial and industrial loans 38 — With a Related Allowance Recorded: Real estate loans: Commercial 930 — Home equity and lines of credit 33 1 Commercial and industrial loans 18 — Total: Real estate loans Commercial 17,128 112 One-to-four family residential 2,464 33 Multifamily 1,036 13 Home equity and lines of credit 54 1 Commercial and industrial loans 56 — $ 20,738 $ 159 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 expected credit losses is not recognized or is minimal. For collateral-dependent loans, the allowance for expected 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, 2021, and December 31, 2020, the Company had $9.8 million and $10.0 million of collateral-dependent impaired loans, respectively. The collateral-dependent loans at March 31, 2021 consisted of $7.6 million in commercial real estate loans, $1.2 million in construction loans, $610,000 in multifamily loans, and $388,000 in one-to-four family residential loans. For the three months ended March 31, 2021, there was no significant deterioration or changes in the collateral securing these loans. Troubled Debt Restructured Loans There were no loans modified in a TDR during the three months ended March 31, 2021 or 2020. 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 periods, with modifications in the form of payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment. As of March 31, 2021, the Company had 24 loan modifications (excluding PCD loans) with principal and/or interest payment deferrals on outstanding loan balances of $28.8 million. Of these 24 payment deferrals, seven were principal deferrals totaling $8.8 million, and 17 were principal and interest deferrals totaling $20.0 million. As these deferrals were current as of December 31, 2019, or the date of modification, these loans are not considered TDRs. Loans in deferment status (“COVID-19 Modified Loans”) will continue to accrue interest during the deferment period unless otherwise classified as nonperforming. COVID-19 Modified Loans are required to make escrow payments for real estate taxes and insurance, if applicable. For loans given relief of interest, the deferred interest is generally to be paid back over a period not to exceed 18 months. Principal deferrals may be brought current or recast into outstanding principal at time of rate reset or repaid at the end of the loan's contractual term. COVID-19 Modified Loan agreements generally also include covenants that prohibit distributions, bonuses, or payments of management fees to related entities until all deferred payments are made. At March 31, 2021 and December 31, 2020, the Company had TDRs of $11.7 million and $12.1 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 loan losses on these loans, which could have a material effect on our financial results.

Allowance for Credit Losses on

Allowance for Credit Losses on Loans (“ACL”)	3 Months Ended
	Mar. 31, 2021
Credit Loss [Abstract]
Allowance for Credit Losses on Loans (“ACL”)	Allowance for Credit Losses on Loans (“ACL”) On January 1, 2021, the Company adopted the CECL standard, which requires the measurement of expected credit losses for financial assets measured at amortized cost, including loans, and certain off-balance-sheet credit exposures. As a result of the adoption of CECL, the Company recorded a $10.4 million increase to its allowance for credit losses on loans, including $6.8 million related to PCD loans. For PCD loans, the allowance for credit losses recorded is recognized through a gross-up that increases the amortized cost basis of loans with a corresponding increase to the allowance for credit losses, and therefore results in no impact to shareholders' equity. Under the CECL standard, the Company determines the ACL on loans based upon a consideration of its historical portfolio loss experience, current borrower-specific risk characteristics, forecasts of future economic conditions, reversion period, prepayments and qualitative adjustments. The allowance is measured on a collective (loan segment) basis when similar risk characteristics exist. Loans that do not share common risk characteristics are evaluated on an individual basis and are excluded from the collective evaluation. Accrued interest on loans is excluded from the calculation of the ACL due to the Company's established non-accrual policy which results in the reversal of uncollectible accrued interest on non-accrual loans against interest income in a timely manner. Accrued interest receivable on loans held-for-investment totaled $13.2 million at March 31, 2021 and is reported in accrued interest receivable on the consolidated balance sheet. The Company’s loan portfolio segmentation includes: multifamily, commercial real estate, one-to-four family residential mortgage, home equity and lines of credit, commercial and industrial, construction and other consumer 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. The metrics are based on the migration of loans from performing to loss by credit quality 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 factors. 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 Moody's scenarios so as to incorporate uncertainties related to the unprecedented economic environment arising from the COVID-19 pandemic. These scenarios, which range from more benign to more severe economic outlooks, represent a ‘most likely outcome’ (the “Baseline” scenario) and four less likely scenarios referred to as the “Upside” scenarios and the “Downside” scenarios. Each scenario is assigned a weighting with a majority of the weighting placed on the Baseline scenario and lower weights placed on both the Upside and Downside scenarios. The weighting assigned by management is based on the economic outlook and available information at the reporting date. The model projects economic variables under each scenario based on detailed statistical analyses. The Company has identified and selected key variables that most closely correlated to its historical credit performance, which include: Gross domestic product, unemployment, and three collateral indices: the Commercial Property Price Index, the Commercial Property Price Apartment Index and the Case-Shiller Home Price Index. Allowance for Individually Evaluated Loans The Company measures specific reserves for individual loans that do not share common risk characteristics with other loans, consisting of all TDRs and non-accrual loans with an outstanding balance of $500,000 or greater. Loans individually evaluated for impairment are assessed to determine that the loan’s carrying value is not in excess of the estimated fair value of the collateral less cost to sell, if the loan is collateral-dependent, or the present value of the expected future cash flows, if the loan is not collateral-dependent. Management performs an evaluation of each impaired loan and generally obtains updated appraisals as part of the evaluation. In addition, management adjusts estimated fair values down to appropriately consider recent market conditions, our willingness to accept a lower sales price to effect a quick sale, and costs to dispose of any supporting collateral. Determining the estimated fair value of underlying collateral (and related costs to sell) can be difficult in illiquid real estate markets and is subject to significant assumptions and estimates. Management employs an independent third-party management firm that specializes in appraisal preparation and review to ascertain the reasonableness of updated appraisals. Projecting the expected cash flows under troubled debt restructurings which are not collateral-dependent is inherently subjective and requires, among other things, an evaluation of the borrower’s current and projected financial condition. 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, 2021 and December 31, 2020, the specific component of the ACL for loans individually evaluated for impairment was $77,000 and $73,000, 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 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 March 31, 2021 Balance at beginning of period $ 808 Impact of CECL adoption 737 Balance at January 1, 2021 1,545 Provision for credit losses 157 Balance at end of period $ 1,702 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, 2021, and March 31, 2020 (in thousands): Three Months Ended March 31, 2021 Real Estate Commercial (1) One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Beginning balance $ 33,005 $ 207 $ 1,214 $ 260 $ 1,842 $ 198 $ 36,726 $ 881 $ 37,607 Impact of CECL adoption (1,949) 5,233 (921) 419 947 (188) 3,541 6,812 10,353 Balance at January 1, 2021 31,056 5,440 293 679 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) (24) (36) 130 (3) (2,374) — (2,374) Ending balance $ 28,882 $ 5,172 $ 269 $ 643 $ 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. Three Months Ended March 31, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCI) PCI Total Allowance for loan losses: Beginning balance $ 4,891 $ 180 $ 536 $ 20,203 $ 317 $ 1,640 $ 151 $ 27,918 $ 789 $ 28,707 Charge-offs (433) — — — — (37) — (470) — (470) Recoveries 375 1 — — 1 2 1 380 — 380 Provisions (credit) 611 131 135 6,686 256 430 (66) 8,183 — 8,183 Ending balance $ 5,444 $ 312 $ 671 $ 26,889 $ 574 $ 2,035 $ 86 $ 36,011 $ 789 $ 36,800 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 loan losses that is allocated to each loan portfolio segment, at March 31, 2021, and December 31, 2020 (in thousands): March 31, 2021 Real Estate Commercial (1) One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Allowance for credit losses on loans: Ending balance: individually evaluated for impairment $ 69 $ 4 $ — $ 2 $ 2 $ — $ 77 $ — $ 77 Ending balance: collectively evaluated for impairment 28,813 5,168 269 641 2,938 9 37,838 5,282 43,120 Loans, net: Ending balance 3,305,522 202,948 77,206 93,118 234,518 1,658 3,914,970 18,045 3,933,015 Ending balance: individually evaluated for impairment 9,839 1,634 1,150 45 16 — 12,684 — 12,684 Ending balance: collectively evaluated for impairment 3,295,683 201,314 76,056 93,073 66,628 1,658 3,734,412 18,045 3,752,457 PPP loans not evaluated for impairment (2) — — — — 167,874 — 167,874 — 167,874 December 31, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCI) PCI Total Allowance for credit losses on loans: Ending balance: individually evaluated for impairment $ 66 $ — $ — $ — $ 3 $ 4 $ — $ 73 $ — $ 73 Ending balance: collectively evaluated for impairment 5,944 207 1,214 26,995 257 1,838 198 36,653 881 37,534 Loans, net: Ending balance 717,566 212,222 74,351 2,512,934 93,137 191,481 3,029 3,804,720 18,518 3,823,238 Ending balance: individually evaluated for impairment 10,650 1,903 — 626 47 16 — 13,242 — 13,242 Ending balance: collectively evaluated for impairment 706,916 210,319 74,351 2,512,308 93,090 64,930 3,029 3,664,943 18,518 3,683,461 PPP loans not evaluated for impairment (2) — — — — — 126,535 — 126,535 — 126,535 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. (2) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for loan losses.

Deposits

Deposits	3 Months Ended
	Mar. 31, 2021
Deposits [Abstract]
Deposits	Deposits Deposit account balances are summarized as follows (in thousands): March 31, 2021 December 31, 2020 Non-interest-bearing checking $ 771,432 $ 695,831 NOW and interest-bearing checking 918,367 905,208 Savings and money market 1,815,727 1,953,885 Certificates of deposit 630,190 521,627 Total deposits $ 4,135,716 $ 4,076,551 Interest expense on deposit accounts is summarized for the periods indicated (in thousands): Three Months Ended March 31, 2021 2020 NOW and interest-bearing checking, savings, and money market $ 932 $ 4,073 Certificates of deposit 938 5,206 Total interest expense on deposit accounts $ 1,870 $ 9,279

Equity Incentive Plans

Equity Incentive Plans	3 Months Ended
	Mar. 31, 2021
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, 2021, 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, 2020 2,214,193 $ 4.01 $ 13.94 3.96 Forfeited (41,090) 3.96 13.62 — Exercised (54,990) 4.06 14.69 — Outstanding - March 31, 2021 2,118,113 4.01 13.92 3.71 Exercisable - March 31, 2021 2,101,034 4.00 13.91 3.70 Expected future stock option expense related to the non-vested options outstanding as of March 31, 2021, is $25,000 over a weighted average period of 0.6 years. On January 29, 2021, the Company granted to directors and employees, under the 2019 EIP, 147,315 restricted stock units with a total grant-date fair value of $1.8 million. Of these grants, 32,769 vest one year from the date of grant and 114,546 vest in equal installments over a five-year period beginning one year from the date of grant. The Company also issued 29,615 performance-based restricted stock units to its executive officers with a total grant date fair value of $366,041. Vesting of the performance-based restricted stock units will be based on achievement of certain levels of Core Return on Average Assets and will cliff-vest after a three-year measurement period ended January 29, 2024, based on the Company's performance relative to a peer group as determined by the Compensation Committee of the Board. At the end of the performance period, the number of actual shares to be awarded may vary between 0% and 225% of target amounts. The following is a summary of the status of the Company’s restricted stock awards as of March 31, 2021, and changes therein during the three months then ended. Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2020 104,010 $ 15.91 Granted 176,930 12.59 Vested (38,470) 15.81 Forfeited (4,022) 15.81 Non-vested at March 31, 2021 238,448 13.46 Expected future stock award expense related to the non-vested restricted share awards as of March 31, 2021, is $2.6 million over a weighted average period of 3.3 years. During the three months ended March 31, 2021, and March 31, 2020, the Company recorded $243,000 and $448,000, respectively, of stock-based compensation related to the above plans.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2021
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, 2021, and December 31, 2020, 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 15 to the Consolidated Financial Statements of the Company’s 2020 Annual Report on Form 10-K. Fair Value Measurements at March 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 $ 2,690 $ — $ 2,690 $ — Mortgage-backed securities: Pass-through certificates: GSE 253,563 — 253,563 — REMICs: GSE 825,693 — 825,693 — 1,079,256 — 1,079,256 — Other debt securities: Municipal bonds 103 — 103 — Corporate bonds 124,442 — 124,442 — Asset-backed securities 747 — 747 — 125,292 — 125,292 — Total debt securities available-for-sale 1,207,238 — 1,207,238 — Trading securities 12,142 12,142 — — Equity securities 473 473 — — Total $ 1,219,853 $ 12,615 $ 1,207,238 $ — Measured on a non-recurring basis: Assets: Loans individually evaluated for impairment: Real estate loans: Commercial real estate $ 3,871 $ — $ — $ 3,871 One-to-four family residential mortgage 540 — — 540 Multifamily 12 — — 12 Home equity and lines of credit 29 — — 29 Total individually evaluated real estate loans 4,452 — — 4,452 Commercial and industrial loans 14 — — 14 Other real estate owned 100 — — 100 Total $ 4,566 $ — $ — $ 4,566 Fair Value Measurements at December 31, 2020 Using: Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (in thousands) Measured on a recurring basis: Assets: Investment securities: Debt securities available-for-sale: U.S. Government agency securities $ 3,158 $ — $ 3,158 $ — Mortgage-backed securities: Pass-through certificates: GSE 281,343 — 281,343 — REMICs: GSE 890,965 — 890,965 — Non-GSE 4 — 4 — 1,172,312 — 1,172,312 — Other debt securities: Municipal bonds 123 — 123 — Corporate bonds 88,418 — 88,418 — Asset-backed securities 794 — 794 — 89,335 — 89,335 — Total debt securities available-for-sale 1,264,805 — 1,264,805 — Trading securities 12,291 12,291 — — Equity securities 253 253 — — Total $ 1,277,349 $ 12,544 $ 1,264,805 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 5,268 $ — $ — $ 5,268 Multifamily 16 — — 16 Home equity and lines of credit 28 — — 28 Total impaired real estate loans 5,312 — — 5,312 Commercial and industrial loans 13 — — 13 Total $ 5,325 $ — $ — $ 5,325 The following table presents qualitative information for Level 3 assets measured at fair value on a non-recurring basis at March 31, 2021, and December 31, 2020 (dollars in thousands): Fair Value Valuation Methodology Unobservable Range of Inputs March 31, 2021 December 31, 2020 March 31, 2021 December 31, 2020 Individually evaluated loans $ 4,466 $ 5,325 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 6.25% 4.88% to 6.25% Other real estate owned 100 — Appraisals Discount for costs to sell 7.0% N/A The valuation techniques described below were used to measure fair value of financial instruments in the tables below on a recurring basis and a non-recurring basis as of March 31, 2021, and December 31, 2020. 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, 2021 or March 31, 2020. 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, 2021, and December 31, 2020, the Company had loans individually evaluated for impairment (excluding PCD/PCI loans) with outstanding principal balances of $6.5 million and $7.4 million, respectively, which were recorded at their estimated fair value of $4.5 million and $5.3 million, respectively. The Company recorded a net increase in the specific reserve for impaired loans of $3,000 for the three months ended March 31, 2021 and a net decrease in the specific reserve for impaired loans of $79,000 for the three months ended March 31, 2020. Net charge-offs of $2.4 million and $90,000 were recorded for the three months ended March 31, 2021 and March 31, 2020, 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, 2021, the Company had assets acquired through foreclosure of $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 loan 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 nonperforming 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 nonperformance 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 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 value of the Company’s financial instruments at March 31, 2021, and December 31, 2020, is presented in the following tables (in thousands): March 31, 2021 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 127,570 $ 127,570 $ — $ — $ 127,570 Trading securities 12,142 12,142 — — 12,142 Debt securities available-for-sale 1,207,238 — 1,207,238 — 1,207,238 Debt securities held-to-maturity 6,913 — 7,241 — 7,241 Equity securities 473 473 — — 473 FHLBNY stock, at cost 28,641 — 28,641 — 28,641 Net loans held-for-investment 3,889,818 — — 3,959,088 3,959,088 Derivative assets 1,219 — 1,219 — 1,219 Financial liabilities: Deposits $ 4,135,716 $ — $ 4,140,621 $ — $ 4,140,621 Borrowed funds 592,170 — 604,460 — 604,460 Advance payments by borrowers for taxes and insurance 24,027 — 24,027 — 24,027 Derivative liabilities 1,220 — 1,220 — 1,220 December 31, 2020 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 87,544 $ 87,544 $ — $ — $ 87,544 Trading securities 12,291 12,291 — — 12,291 Debt securities available-for-sale 1,264,805 — 1,264,805 — 1,264,805 Debt securities held-to-maturity 7,234 — 7,574 — 7,574 Equity securities 253 253 — — 253 FHLBNY stock, at cost 28,641 — 28,641 — 28,641 Loans held-for-sale 19,895 — — 19,895 19,895 Net loans held-for-investment 3,785,631 — — 3,842,054 3,842,054 Derivative assets 1,498 — 1,498 — 1,498 Financial liabilities: Deposits $ 4,076,551 $ — $ 4,082,538 $ — $ 4,082,538 Borrowed funds 591,789 — 609,900 — 609,900 Advance payments by borrowers for taxes and insurance 19,677 — 19,677 — 19,677 Derivative liabilities 1,502 — 1,502 — 1,502 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, 2021
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 and unvested shares of restricted stock were exercised and converted into common stock. These potentially dilutive shares would then be included in the weighted average number of shares outstanding for the period using the treasury stock method. 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, 2021 2020 Net income available to common stockholders $ 18,677 $ 4,551 Weighted average shares outstanding-basic 49,528,419 46,791,768 Effect of non-vested restricted stock and stock options outstanding 105,225 191,698 Weighted average shares outstanding-diluted 49,633,644 46,983,466 Earnings per share-basic $ 0.38 $ 0.10 Earnings per share-diluted $ 0.38 $ 0.10 Anti-dilutive shares 1,002,377 1,001,828

Leases

Leases	3 Months Ended
	Mar. 31, 2021
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 34.3 years. At March 31, 2021, all of the Company's leases are classified as operating leases, which are required to be recognized on the consolidated statements of financial condition 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, 2021, the Company’s operating lease right-of-use assets and operating lease liabilities included on the consolidated balance sheet were $35.7 million and $42.1 million, respectively. At December 31, 2020, the Company’s operating lease right-of-use assets and operating lease liabilities included on the consolidated balance sheet were $36.7 million and $42.7 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, 2021, and March 31, 2020 is as follows (dollars in thousands): Three Months Ended March 31, 2021 2020 Operating lease cost $ 1,455 $ 1,439 Variable lease cost 1,235 544 Net lease cost $ 2,690 $ 1,983 Cash paid for amounts included in measurement of operating lease liabilities $ 1,708 $ 1,545 Right-of-use assets obtained in exchange for new operating lease liabilities $ — $ 3,028 Weighted average remaining lease term 12.26 years 12.71 years Weighted average discount rate 3.60 % 3.59 % 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 2021 $ 4,669 2022 5,550 2023 5,504 2024 5,067 2025 4,710 Thereafter 28,196 Total lease payments 53,696 Less: imputed interest 11,629 Present value of lease liabilities $ 42,067

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The Company records revenue from contracts with customers in accordance with ASU 2014-09, Revenue from Contracts with Customers (“Topic 606”) . The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Topic 606 does not apply to revenue associated with financial instruments, including revenue from loans and securities, which comprise the majority of the Company’s revenue. The Company’s revenue streams that are within the scope of Topic 606 include service charges on deposit accounts, ATM and card interchange fees, investment services fees, and other miscellaneous income. Fees and service charges for customer services include: (i) service charges on deposit accounts, including account maintenance fees, overdraft fees, insufficient funds fees, wire fees, and other deposit related fees; (ii) ATM and card interchange fees, which include fees generated when a Bank cardholder uses a non-Bank ATM or a non-Bank cardholder uses a Bank ATM, and fees earned whenever the Bank's debit cards are processed through card payment networks such as Visa; and (iii) investment services fees earned through partnering with a third party investment and brokerage service firm to provide insurance and investment products to customers. The Company's performance obligation for fees and service charges is satisfied and related revenue recognized immediately or in the month of performance of services. For the three months ended March 31, 2021, other income primarily includes rental income from subleasing one of the Company's branches to a third party and gains on the sale or payoff of loans. For the three months ended March 31, 2020, other income primarily includes rental income from subleasing one of the Company's branches to a third party. Other income is recognized at the time the transaction occurs. The following table summarizes non-interest income for the periods indicated (in thousands): Three Months Ended March 31, 2021 2020 Fees and service charges for customer services: Service charges $ 720 $ 753 ATM and card interchange fees 399 304 Investment fees 78 63 Total fees and service charges for customer services 1,197 1,120 Income on bank-owned life insurance (1) 848 876 Gains (losses) on available-for-sale debt securities, net (1) 97 (13) Gains (losses) on trading securities, net (1) 364 (1,992) Swap income (1) — 76 Other 130 41 Total non-interest income $ 2,636 $ 108 (1) Not in scope of Topic 606

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2021
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, 2021, the Company had seven interest rate swaps with a notional amount of $38.9 million. At December 31, 2020, the Company had seven interest rate swaps with a notional amount of $39.2 million. For the three months ended March 31, 2021 and March 31, 2020, the Company recorded net fee income of $0 and $76,000, respectively. 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, 2021 December 31, 2020 Other assets $ 1,219 $ 1,498 Other liabilities 1,220 1,502

Recent Accounting Pronouncement

Recent Accounting Pronouncements Adopted	3 Months Ended
	Mar. 31, 2021
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recent Accounting Pronouncements Adopted	Recent Accounting Pronouncements Adopted In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): “Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). This guidance was subsequently amended by ASU No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments”; ASU No. 2019-05, “Financial Instruments-Credit Losses (Topic 326): Targeted Transition Relief”; and ASU No. 2019-11, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses”. ASU No. 2016-13 and its subsequent updates are collectively known as “CECL”. CECL replaces the current incurred loss impairment model that recognizes losses when a probable threshold is met with a requirement to recognize lifetime expected credit losses immediately when a financial asset is originated or purchased. For available-for-sale debt securities where fair value is less than cost, credit-related impairment would be recognized in an allowance for credit losses and adjusted in each subsequent period for changes in credit risk. CECL also expands the disclosure requirements regarding an entity’s assumptions, models, and methods for estimating the allowance for credit losses. ASU 2016-13 and its related amendments were initially effective for financial statements for fiscal years and interim periods beginning after December 15, 2019. The Company elected to defer the adoption of the CECL methodology permitted by the CARES Act, signed into law on March 27, 2020, which provided financial institutions with the option to defer adoption of ASU 2016-13 until the earlier of the end of the pandemic or December 31, 2020. This relief was further extended by the Consolidations Appropriations Act enacted on December 27, 2020, to the earlier of the first day of an entity's fiscal year after the date the national emergency terminates or January 1, 2022. The Company adopted ASU 2016-13 and its related amendments on January 1, 2021, using a modified retrospective approach. Our implementation process included: assessment and documentation of governance and reporting processes and related internal controls; model development, documentation and validation; and the incorporation of qualitative adjustments for model limitations, among other things. ASU 2016-13 lists several credit loss methods that are acceptable such as a discounted cash flow method, loss-rate method and probability of default/loss given default (“PD/LGD”) method. The Company utilizes the PD/LGD methodology to estimate its allowance for loan losses. At adoption, the Company recorded an $11.1 million increase to its allowance for credit losses, including reserves of $10.4 million related to loans and $737,000 related to unfunded credit commitments. Of the $10.4 million increase in loan reserves, $6.8 million represents PCD loan-related reserves which were recognized through a gross-up that increases the amortized cost basis of loans with a corresponding increase to the allowance for credit losses, and therefore results in no impact to shareholders' equity. The non-PCD loan related increase to the allowance for credit losses of $4.3 million, including the reserves for unfunded loan commitments, was offset in shareholders' equity and deferred tax assets. For further details on the adoption of CECL see Note 6 - Loans and Note 7 - Allowance for Credit Losses on Loans.

Consolidated Financial Statem_2

Consolidated Financial Statements (Policies)	3 Months Ended
	Mar. 31, 2021
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, 2021 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2021 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 the consolidated statements of comprehensive income for the periods indicated. Material estimates that are particularly susceptible to change are: the allowance for loan 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. Certain information and note disclosures usually included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission ( “ SEC ”
Loans and Allowance for Credit Losses	On January 1, 2021, the Company adopted ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): “Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”) which replaces the incurred loss methodology with an expected loss methodology that is referred to as the current expected credit loss (“CECL”) methodology. The Company used the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet credit exposures. The adoption of the new standard resulted in the Company recording an increase in the allowance for credit losses of $11.1 million, comprised of $10.4 million and $737,000, respectively, for loans and unfunded commitments, including $6.8 million related to PCD loans. For PCD loans, the allowance for credit losses recorded is recognized through a gross-up that increases the amortized cost basis of loans with a corresponding increase to the allowance for credit losses, and therefore results in no impact to shareholders' equity. The remaining increase to the allowance for credit losses of $4.3 million was offset in stockholders' equity and deferred taxes. As a result of adopting CECL, the Company's prior distinction between the originated loan portfolio and the non-PCD acquired loan portfolio is no longer necessary. Results for reporting periods beginning after January 1, 2021 are presented under CECL, while prior period amounts continue to be recorded with previously applicable U.S. GAAP. Further information regarding the impact of CECL can be found in Note 6 - Loans, Note 7 - Allowance for Loan Losses and Note 15 - Recent Accounting Pronouncements Adopted.
Fair Value Measurements	The following tables present the assets reported on the consolidated balance sheets at their estimated fair value as of March 31, 2021, and December 31, 2020, 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 nonperforming 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 nonperformance 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 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 and unvested shares of restricted stock were exercised and converted into common stock. These potentially dilutive shares would then be included in the weighted average number of shares outstanding for the period using the treasury stock method. 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.
Recently Issued and Adopted Accounting Pronouncements	In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): “Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). This guidance was subsequently amended by ASU No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments”; ASU No. 2019-05, “Financial Instruments-Credit Losses (Topic 326): Targeted Transition Relief”; and ASU No. 2019-11, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses”. ASU No. 2016-13 and its subsequent updates are collectively known as “CECL”. CECL replaces the current incurred loss impairment model that recognizes losses when a probable threshold is met with a requirement to recognize lifetime expected credit losses immediately when a financial asset is originated or purchased. For available-for-sale debt securities where fair value is less than cost, credit-related impairment would be recognized in an allowance for credit losses and adjusted in each subsequent period for changes in credit risk. CECL also expands the disclosure requirements regarding an entity’s assumptions, models, and methods for estimating the allowance for credit losses. ASU 2016-13 and its related amendments were initially effective for financial statements for fiscal years and interim periods beginning after December 15, 2019. The Company elected to defer the adoption of the CECL methodology permitted by the CARES Act, signed into law on March 27, 2020, which provided financial institutions with the option to defer adoption of ASU 2016-13 until the earlier of the end of the pandemic or December 31, 2020. This relief was further extended by the Consolidations Appropriations Act enacted on December 27, 2020, to the earlier of the first day of an entity's fiscal year after the date the national emergency terminates or January 1, 2022. The Company adopted ASU 2016-13 and its related amendments on January 1, 2021, using a modified retrospective approach. Our implementation process included: assessment and documentation of governance and reporting processes and related internal controls; model development, documentation and validation; and the incorporation of qualitative adjustments for model limitations, among other things. ASU 2016-13 lists several credit loss methods that are acceptable such as a discounted cash flow method, loss-rate method and probability of default/loss given default (“PD/LGD”) method. The Company utilizes the PD/LGD methodology to estimate its allowance for loan losses. At adoption, the Company recorded an $11.1 million increase to its allowance for credit losses, including reserves of $10.4 million related to loans and $737,000 related to unfunded credit commitments. Of the $10.4 million increase in loan reserves, $6.8 million represents PCD loan-related reserves which were recognized through a gross-up that increases the amortized cost basis of loans with a corresponding increase to the allowance for credit losses, and therefore results in no impact to shareholders' equity. The non-PCD loan related increase to the allowance for credit losses of $4.3 million, including the reserves for unfunded loan commitments, was offset in shareholders' equity and deferred tax assets. For further details on the adoption of CECL see Note 6 - Loans and Note 7 - Allowance for Credit Losses on Loans.

Business Combinations (Tables)

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2021
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition	The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition for Victory (in thousands): At July 1, 2020 Fair Value Total Purchase Price $ 41,173 Assets acquired: Cash and cash equivalents $ 72,875 Debt securities available for sale 126,931 Loans 180,431 Accrued interest receivable 1,415 Bank-owned life insurance 5,714 Premises and equipment 7,789 Other assets 4,702 Total assets acquired 399,857 Liabilities assumed: Deposits 354,592 Other liabilities 7,001 Total liabilities assumed 361,593 Net assets acquired $ 38,264 Goodwill recorded in the merger $ 2,909
Schedule of Credit Impaired Loans Acquired in Acquisition	The following is a summary of the credit impaired loans acquired in the Victory acquisition as of the closing date (in thousands): July 1, 2020 Contractually required principal and interest $ 7,809 Contractual cash flows not expected to be collected (non-accretable discount) 3,315 Expected cash flows to be collected at acquisition 4,494 Interest component of expected cash flows (accretable yield) (599) Fair value of acquired loans $ 3,895

Debt Securities Available-for_2

Debt Securities Available-for-Sale (Tables)	3 Months Ended
	Mar. 31, 2021
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 and other debt securities available-for-sale at March 31, 2021, and December 31, 2020 (in thousands): March 31, 2021 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 2,758 $ — $ (68) $ 2,690 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises ("GSEs") 244,399 9,522 (358) 253,563 Real estate mortgage investment conduits ("REMICs"): GSE 818,623 7,392 (322) 825,693 1,063,022 16,914 (680) 1,079,256 Other debt securities: Municipal bonds 102 1 — 103 Corporate bonds 123,732 891 (181) 124,442 Asset-backed securities 733 14 — 747 124,567 906 (181) 125,292 Total debt securities available-for-sale $ 1,190,347 $ 17,820 $ (929) $ 1,207,238 December 31, 2020 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government agency securities $ 3,168 $ — $ (10) $ 3,158 Mortgage-backed securities: Pass-through certificates: GSE 270,867 10,720 (244) 281,343 REMICs: GSE 884,414 7,027 (476) 890,965 Non-GSE 4 — — 4 1,155,285 17,747 (720) 1,172,312 Other debt securities: Municipal bonds 122 1 — 123 Corporate bonds 87,319 1,099 — 88,418 Asset-backed securities 779 15 — 794 88,220 1,115 — 89,335 Total debt securities available-for-sale $ 1,246,673 $ 18,862 $ (730) $ 1,264,805
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, 2021 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 25,288 $ 25,872 Due after one year through five years 83,535 83,815 Due after five years through ten years 17,769 17,548 Due after ten years 733 747 $ 127,325 $ 127,982
Gross Unrealized Losses on Mortgage-Backed Securities	Gross unrealized losses on mortgage-backed 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, 2021, and December 31, 2020, were as follows (in thousands): March 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 $ (68) $ 2,690 $ — $ — $ (68) $ 2,690 Mortgage-backed securities: Pass-through certificates: GSE (353) 33,531 (5) 254 (358) 33,785 REMICs: GSE (322) 57,352 — — (322) 57,352 Other debt securities: Corporate bonds (181) 35,274 — — (181) 35,274 Total $ (924) $ 128,847 $ (5) $ 254 $ (929) $ 129,101 December 31, 2020 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 (10) $ 3,158 $ — $ — $ (10) $ 3,158 Mortgage-backed securities: Pass-through certificates: GSE (233) 28,419 (11) 459 (244) 28,878 REMICs: GSE (476) 210,569 — — (476) 210,569 Total $ (719) $ 242,146 $ (11) $ 459 $ (730) $ 242,605

Debt Securities Held-to-Matur_2

Debt Securities Held-to-Maturity (Tables)	3 Months Ended
	Mar. 31, 2021
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, 2021, and December 31, 2020 (in thousands): March 31, 2021 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSE $ 6,913 $ 328 $ — $ 7,241 Total securities held-to-maturity $ 6,913 $ 328 $ — $ 7,241 December 31, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSE $ 7,234 $ 340 $ — $ 7,574 Total securities held-to-maturity $ 7,234 $ 340 $ — $ 7,574

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Net Loans Held-for-Investment	The following table summarizes the Company’s loans held-for-investment (in thousands): March 31, December 31, 2021 2020 Real estate loans: Multifamily $ 2,571,409 $ 2,509,310 Commercial mortgage 734,113 716,973 One-to-four family residential mortgage 202,948 210,817 Home equity and lines of credit 93,118 91,126 Construction and land 77,206 74,318 Total real estate loans 3,678,794 3,602,544 Commercial and industrial loans (1) 234,518 194,352 Other loans 1,658 3,029 Total commercial and industrial and other loans 236,176 197,381 Deferred origination loan costs, net (1) — 4,795 Loans held-for-investment, net (excluding PCD/PCI) 3,914,970 3,804,720 PCD/PCI loans 18,045 18,518 Total Loans held-for-investment, net 3,933,015 3,823,238 Allowance for loan losses (43,197) (37,607) Net loans held-for-investment $ 3,889,818 $ 3,785,631 (1) Under CECL origination deferred fees, deferred fees on acquired loans, and purchase accounting adjustments in connection with loans acquired are included in loans by respective portfolio. (2) Included in commercial and industrial loans at March 31, 2021 and December 31, 2020 are PPP loans totaling $167.9 million and $126.5 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, as of March 31, 2021 (in thousands): March 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Total Real Estate: Multifamily Pass $ 161,305 $ 562,841 $ 407,309 $ 345,635 $ 283,681 $ 793,689 $ 44 $ 2,554,504 Special Mention — — — — — 450 — 450 Substandard — — 4,691 3,361 — 8,403 — 16,455 Total multifamily 161,305 562,841 412,000 348,996 283,681 802,542 44 2,571,409 Commercial Pass 33,829 72,556 100,207 92,969 66,730 312,858 3,583 682,732 Special Mention — — 1,297 9,046 — 9,506 500 20,349 Substandard — 2,470 9,660 328 4,079 14,495 — 31,032 Total commercial 33,829 75,026 111,164 102,343 70,809 336,859 4,083 734,113 One-to-four family residential Pass 966 9,689 14,189 15,717 13,097 141,652 1,613 196,923 Special Mention — — 467 — — 2,428 — 2,895 Substandard — — 600 — — 2,530 — 3,130 Total one-to-four family residential 966 9,689 15,256 15,717 13,097 146,610 1,613 202,948 Construction and land Pass 6,654 14,328 5,760 36,750 7,515 3,641 1,018 75,666 Special Mention — — — — — — — — Substandard — — 1,150 390 — — — 1,540 Total construction and land 6,654 14,328 6,910 37,140 7,515 3,641 1,018 77,206 Home equity and lines of credit Pass 3,831 14,641 9,894 8,832 3,315 13,848 38,019 92,380 Special Mention — — — — — 306 — 306 Substandard — — 99 88 — 245 — 432 Total home equity and lines of credit 3,831 14,641 9,993 8,920 3,315 14,399 38,019 93,118 Total Real Estate Loans 206,585 676,525 555,323 513,116 378,417 1,304,051 44,777 3,678,794 Commercial and industrial Pass 67,372 113,363 6,407 3,462 1,356 12,961 26,406 231,327 Special Mention — 81 210 42 147 324 — 804 Substandard — 499 360 666 — 862 — 2,387 Total commercial and industrial 67,372 113,943 6,977 4,170 1,503 14,147 26,406 234,518 Other Pass 1,257 191 32 51 — 51 73 1,655 Substandard — — — — — 3 — 3 Total other 1,257 191 32 51 — 54 73 1,658 Total loans held-for-investment, net $ 275,214 $ 790,659 $ 562,332 $ 517,337 $ 379,920 $ 1,318,252 $ 71,256 $ 3,914,970 The following table details the recorded investment of loans held-for-investment, excluding PCI loans, net of deferred fees and costs, by loan type and credit quality indicator at December 31, 2020 (in thousands): At December 31, 2020 Real Estate Multifamily Commercial One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total Internal Risk Rating Pass $ 2,497,556 $ 667,568 $ 207,633 $ 74,351 $ 92,385 $ 189,372 $ 3,026 $ 3,731,891 Special Mention 458 20,422 2,456 — 311 498 — 24,145 Substandard 14,920 29,576 2,133 — 441 1,611 3 48,684 Total loans held-for-investment, net $ 2,512,934 $ 717,566 $ 212,222 $ 74,351 $ 93,137 $ 191,481 $ 3,029 $ 3,804,720
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, 2021, and March 31, 2020 (in thousands): Three Months Ended March 31, 2021 Real Estate Commercial (1) One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Beginning balance $ 33,005 $ 207 $ 1,214 $ 260 $ 1,842 $ 198 $ 36,726 $ 881 $ 37,607 Impact of CECL adoption (1,949) 5,233 (921) 419 947 (188) 3,541 6,812 10,353 Balance at January 1, 2021 31,056 5,440 293 679 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) (24) (36) 130 (3) (2,374) — (2,374) Ending balance $ 28,882 $ 5,172 $ 269 $ 643 $ 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. Three Months Ended March 31, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCI) PCI Total Allowance for loan losses: Beginning balance $ 4,891 $ 180 $ 536 $ 20,203 $ 317 $ 1,640 $ 151 $ 27,918 $ 789 $ 28,707 Charge-offs (433) — — — — (37) — (470) — (470) Recoveries 375 1 — — 1 2 1 380 — 380 Provisions (credit) 611 131 135 6,686 256 430 (66) 8,183 — 8,183 Ending balance $ 5,444 $ 312 $ 671 $ 26,889 $ 574 $ 2,035 $ 86 $ 36,011 $ 789 $ 36,800 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 loan losses that is allocated to each loan portfolio segment, at March 31, 2021, and December 31, 2020 (in thousands): March 31, 2021 Real Estate Commercial (1) One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Allowance for credit losses on loans: Ending balance: individually evaluated for impairment $ 69 $ 4 $ — $ 2 $ 2 $ — $ 77 $ — $ 77 Ending balance: collectively evaluated for impairment 28,813 5,168 269 641 2,938 9 37,838 5,282 43,120 Loans, net: Ending balance 3,305,522 202,948 77,206 93,118 234,518 1,658 3,914,970 18,045 3,933,015 Ending balance: individually evaluated for impairment 9,839 1,634 1,150 45 16 — 12,684 — 12,684 Ending balance: collectively evaluated for impairment 3,295,683 201,314 76,056 93,073 66,628 1,658 3,734,412 18,045 3,752,457 PPP loans not evaluated for impairment (2) — — — — 167,874 — 167,874 — 167,874 December 31, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCI) PCI Total Allowance for credit losses on loans: Ending balance: individually evaluated for impairment $ 66 $ — $ — $ — $ 3 $ 4 $ — $ 73 $ — $ 73 Ending balance: collectively evaluated for impairment 5,944 207 1,214 26,995 257 1,838 198 36,653 881 37,534 Loans, net: Ending balance 717,566 212,222 74,351 2,512,934 93,137 191,481 3,029 3,804,720 18,518 3,823,238 Ending balance: individually evaluated for impairment 10,650 1,903 — 626 47 16 — 13,242 — 13,242 Ending balance: collectively evaluated for impairment 706,916 210,319 74,351 2,512,308 93,090 64,930 3,029 3,664,943 18,518 3,683,461 PPP loans not evaluated for impairment (2) — — — — — 126,535 — 126,535 — 126,535 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. (2) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for loan losses.
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, 2021, and December 31, 2020, excluding PCD/PCI loans (in thousands): March 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: Commercial Substandard $ 2,817 $ 100 $ 2,044 $ 4,961 $ 219 $ 5,180 Total commercial 2,817 100 2,044 4,961 219 5,180 One-to-four family residential Substandard 406 — 399 805 172 977 Total one-to-four family residential 406 — 399 805 172 977 Construction and land Substandard — — 1,150 1,150 — 1,150 Total construction and land — — 1,150 1,150 — 1,150 Multifamily Substandard — — 1,145 1,145 516 1,661 Total multifamily — — 1,145 1,145 516 1,661 Home equity and lines of credit Substandard 58 — 129 187 — 187 Total home equity and lines of credit 58 — 129 187 — 187 Total real estate 3,281 100 4,867 8,248 907 9,155 Commercial and industrial loans Pass — — — — 92 92 Special Mention — — — — 85 85 Substandard 1 36 161 198 561 759 Total commercial and industrial loans 1 36 161 198 738 936 Other loans Pass — — — — 3 3 Total other — — — — 3 3 Total non-performing loans $ 3,282 $ 136 $ 5,028 $ 8,446 $ 1,648 $ 10,094 December 31, 2020 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: Commercial Pass $ — $ — $ — $ — $ 500 $ 500 Substandard 2,829 537 2,863 6,229 — $ 6,229 Total commercial 2,829 537 2,863 6,229 500 6,729 One-to-four family residential Substandard 413 — 493 906 174 1,080 Total one-to-four family residential 413 — 493 906 174 1,080 Multifamily Substandard — — 1,153 1,153 — 1,153 Total multifamily — — 1,153 1,153 — 1,153 Home equity and lines of credit Substandard 60 — 131 191 — 191 Total home equity and lines of credit 60 — 131 191 — 191 Total real estate 3,302 537 4,640 8,479 674 9,153 Commercial and industrial loans Pass — — — — 101 101 Special Mention — — — — 85 85 Substandard — — 37 37 250 287 Total commercial and industrial loans — — 37 37 436 473 Other loans Pass — — — — 3 3 Total other — — — — 3 3 Total non-performing loans $ 3,302 $ 537 $ 4,677 $ 8,516 $ 1,113 $ 9,629
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/PCI loans, net of deferred fees and costs, at March 31, 2021, and December 31, 2020 (in thousands): March 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: Commercial Pass $ 1,651 $ — $ — $ 1,651 $ 681,081 $ 682,732 Special Mention — — — — 20,349 20,349 Substandard 2,906 2,044 219 5,169 25,863 31,032 Total commercial 4,557 2,044 219 6,820 727,293 734,113 One-to-four family residential Pass 1,827 — — 1,827 195,096 196,923 Special Mention 1,085 — — 1,085 1,810 2,895 Substandard 1,111 399 172 1,682 1,448 3,130 Total one-to-four family residential 4,023 399 172 4,594 198,354 202,948 Construction and land Pass — — — — 75,666 75,666 Substandard 390 1,150 — 1,540 — 1,540 Total construction and land 390 1,150 — 1,540 75,666 77,206 Multifamily Pass 1,256 — — 1,256 2,553,248 2,554,504 Special Mention — — — — 450 450 Substandard 1,163 1,145 516 2,824 13,631 16,455 Total multifamily 2,419 1,145 516 4,080 2,567,329 2,571,409 Home equity and lines of credit Pass 229 — — 229 92,151 92,380 Special Mention 44 — — 44 262 306 Substandard 99 129 — 228 204 432 Total home equity and lines of credit 372 129 — 501 92,617 93,118 Total real estate 11,761 4,867 907 17,535 3,661,259 3,678,794 Commercial and industrial Pass 1,471 — 92 1,563 229,764 231,327 Special Mention 259 — 85 344 460 804 Substandard 785 161 561 1,507 880 2,387 Total commercial and industrial 2,515 161 738 3,414 231,104 234,518 Other loans Pass 7 — — 7 1,648 1,655 Substandard — — 3 3 — 3 Total other loans 7 — 3 10 1,648 1,658 Total loans held-for-investment $ 14,283 $ 5,028 $ 1,648 $ 20,959 $ 3,894,011 $ 3,914,970 December 31, 2020 Performing (Accruing) Loans 0-29 Days Past Due 30-89 Days Past Due Total Non-Performing Loans Total Loans Receivable, net Loans held-for-investment: Real estate loans: Commercial Pass $ 660,996 $ 6,072 $ 667,068 $ 500 $ 667,568 Special Mention 20,350 72 20,422 — 20,422 Substandard 20,699 2,648 23,347 6,229 29,576 Total commercial 702,045 8,792 710,837 6,729 717,566 One-to-four family residential Pass 207,351 282 207,633 — 207,633 Special Mention 1,586 870 2,456 — 2,456 Substandard 1,053 — 1,053 1,080 2,133 Total one-to-four family residential 209,990 1,152 211,142 1,080 212,222 Construction and land Pass 73,357 994 74,351 — 74,351 Total construction and land 73,357 994 74,351 — 74,351 Multifamily Pass 2,496,273 1,283 2,497,556 — 2,497,556 Special Mention 458 — 458 — 458 Substandard 13,157 610 13,767 1,153 14,920 Total multifamily 2,509,888 1,893 2,511,781 1,153 2,512,934 Home equity and lines of credit Pass 92,305 80 92,385 — 92,385 Special Mention 111 200 311 — 311 Substandard 150 100 250 191 441 Total home equity and lines of credit 92,566 380 92,946 191 93,137 Total real estate 3,587,846 13,211 3,601,057 9,153 3,610,210 Commercial and industrial Pass 188,639 632 189,271 101 189,372 Special Mention 352 61 413 85 498 Substandard 1,257 67 1,324 287 1,611 Total commercial and industrial 190,248 760 191,008 473 191,481 Other loans Pass 3,015 11 3,026 — 3,026 Substandard — — — 3 3 Total other loans 3,015 11 3,026 3 3,029 Total loans held-for-investment, net $ 3,781,109 $ 13,982 $ 3,795,091 $ 9,629 $ 3,804,720
Schedule of Non-accrual Loans, Excluding PCD Loans	The following table summarizes information on non-accrual loans, excluding PCD loans, at March 31, 2021 (in thousands): At or for the Three Months Ended March 31, 2021 Recorded Investment Unpaid Principal Balance With No Related Allowance Interest Income Real estate loans: Commercial $ 4,961 $ 5,471 $ 3,275 $ 25 One-to-four family residential 805 836 228 6 Construction and land 1,150 1,150 1,150 — Multifamily 1,145 1,154 — 14 Home equity and lines of credit 187 436 — 2 Commercial and industrial 198 392 1 2 Total non-accrual loans $ 8,446 $ 9,439 $ 4,654 $ 49
Summary of Impaired Loans	The following table summarizes impaired loans as of December 31, 2020 (in thousands): December 31, 2020 Recorded Investment Unpaid Principal Balance Related Allowance With No Allowance Recorded: Real estate loans: Commercial $ 8,838 $ 10,076 $ — One-to-four family residential 1,903 2,032 — Multifamily 626 1,097 — Home equity and lines of credit 15 15 — Total Real Estate 11,382 13,220 — With a Related Allowance Recorded: Real estate loans: Commercial 1,812 2,244 (66) Home equity and lines of credit 32 32 (3) Total Real Estate 1,844 2,276 (69) Commercial and industrial loans 16 16 (4) Total: Real estate loans Commercial 10,650 12,320 (66) One-to-four family residential 1,903 2,032 — Multifamily 626 1,097 — Home equity and lines of credit 47 47 (3) Commercial and industrial loans 16 16 (4) $ 13,242 $ 15,512 $ (73) The following table summarizes the average recorded investment in impaired loans, excluding PCI loans, and interest income recognized as of, and for, the three months March 31, 2020 (in thousands): March 31, 2020 Average Recorded Investment Interest Income With No Allowance Recorded: Real estate loans: Commercial $ 16,198 $ 112 One-to-four family residential 2,464 33 Multifamily 1,036 13 Home equity and lines of credit 21 — Commercial and industrial loans 38 — With a Related Allowance Recorded: Real estate loans: Commercial 930 — Home equity and lines of credit 33 1 Commercial and industrial loans 18 — Total: Real estate loans Commercial 17,128 112 One-to-four family residential 2,464 33 Multifamily 1,036 13 Home equity and lines of credit 54 1 Commercial and industrial loans 56 — $ 20,738 $ 159

Allowance for Credit Losses o_2

Allowance for Credit Losses on Loans (“ACL”) (Tables)	3 Months Ended
	Mar. 31, 2021
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 March 31, 2021 Balance at beginning of period $ 808 Impact of CECL adoption 737 Balance at January 1, 2021 1,545 Provision for credit losses 157 Balance at end of period $ 1,702
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, 2021, and March 31, 2020 (in thousands): Three Months Ended March 31, 2021 Real Estate Commercial (1) One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Beginning balance $ 33,005 $ 207 $ 1,214 $ 260 $ 1,842 $ 198 $ 36,726 $ 881 $ 37,607 Impact of CECL adoption (1,949) 5,233 (921) 419 947 (188) 3,541 6,812 10,353 Balance at January 1, 2021 31,056 5,440 293 679 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) (24) (36) 130 (3) (2,374) — (2,374) Ending balance $ 28,882 $ 5,172 $ 269 $ 643 $ 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. Three Months Ended March 31, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCI) PCI Total Allowance for loan losses: Beginning balance $ 4,891 $ 180 $ 536 $ 20,203 $ 317 $ 1,640 $ 151 $ 27,918 $ 789 $ 28,707 Charge-offs (433) — — — — (37) — (470) — (470) Recoveries 375 1 — — 1 2 1 380 — 380 Provisions (credit) 611 131 135 6,686 256 430 (66) 8,183 — 8,183 Ending balance $ 5,444 $ 312 $ 671 $ 26,889 $ 574 $ 2,035 $ 86 $ 36,011 $ 789 $ 36,800 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 loan losses that is allocated to each loan portfolio segment, at March 31, 2021, and December 31, 2020 (in thousands): March 31, 2021 Real Estate Commercial (1) One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCD) PCD Total Allowance for credit losses on loans: Ending balance: individually evaluated for impairment $ 69 $ 4 $ — $ 2 $ 2 $ — $ 77 $ — $ 77 Ending balance: collectively evaluated for impairment 28,813 5,168 269 641 2,938 9 37,838 5,282 43,120 Loans, net: Ending balance 3,305,522 202,948 77,206 93,118 234,518 1,658 3,914,970 18,045 3,933,015 Ending balance: individually evaluated for impairment 9,839 1,634 1,150 45 16 — 12,684 — 12,684 Ending balance: collectively evaluated for impairment 3,295,683 201,314 76,056 93,073 66,628 1,658 3,734,412 18,045 3,752,457 PPP loans not evaluated for impairment (2) — — — — 167,874 — 167,874 — 167,874 December 31, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Total Loans (excluding PCI) PCI Total Allowance for credit losses on loans: Ending balance: individually evaluated for impairment $ 66 $ — $ — $ — $ 3 $ 4 $ — $ 73 $ — $ 73 Ending balance: collectively evaluated for impairment 5,944 207 1,214 26,995 257 1,838 198 36,653 881 37,534 Loans, net: Ending balance 717,566 212,222 74,351 2,512,934 93,137 191,481 3,029 3,804,720 18,518 3,823,238 Ending balance: individually evaluated for impairment 10,650 1,903 — 626 47 16 — 13,242 — 13,242 Ending balance: collectively evaluated for impairment 706,916 210,319 74,351 2,512,308 93,090 64,930 3,029 3,664,943 18,518 3,683,461 PPP loans not evaluated for impairment (2) — — — — — 126,535 — 126,535 — 126,535 (1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties. (2) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for loan losses.

Deposits (Tables)

Deposits (Tables)	3 Months Ended
	Mar. 31, 2021
Deposits [Abstract]
Deposit Account Balances	Deposit account balances are summarized as follows (in thousands): March 31, 2021 December 31, 2020 Non-interest-bearing checking $ 771,432 $ 695,831 NOW and interest-bearing checking 918,367 905,208 Savings and money market 1,815,727 1,953,885 Certificates of deposit 630,190 521,627 Total deposits $ 4,135,716 $ 4,076,551
Interest Expense on Deposits	Interest expense on deposit accounts is summarized for the periods indicated (in thousands): Three Months Ended March 31, 2021 2020 NOW and interest-bearing checking, savings, and money market $ 932 $ 4,073 Certificates of deposit 938 5,206 Total interest expense on deposit accounts $ 1,870 $ 9,279

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	3 Months Ended
	Mar. 31, 2021
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, 2021, 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, 2020 2,214,193 $ 4.01 $ 13.94 3.96 Forfeited (41,090) 3.96 13.62 — Exercised (54,990) 4.06 14.69 — Outstanding - March 31, 2021 2,118,113 4.01 13.92 3.71 Exercisable - March 31, 2021 2,101,034 4.00 13.91 3.70
Status of the Company's Restricted Share Awards	The following is a summary of the status of the Company’s restricted stock awards as of March 31, 2021, and changes therein during the three months then ended. Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2020 104,010 $ 15.91 Granted 176,930 12.59 Vested (38,470) 15.81 Forfeited (4,022) 15.81 Non-vested at March 31, 2021 238,448 13.46

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Significant Fair Value of Assets and Liabilities Measured on Recurring and Non Recurring Basis	Fair Value Measurements at March 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 $ 2,690 $ — $ 2,690 $ — Mortgage-backed securities: Pass-through certificates: GSE 253,563 — 253,563 — REMICs: GSE 825,693 — 825,693 — 1,079,256 — 1,079,256 — Other debt securities: Municipal bonds 103 — 103 — Corporate bonds 124,442 — 124,442 — Asset-backed securities 747 — 747 — 125,292 — 125,292 — Total debt securities available-for-sale 1,207,238 — 1,207,238 — Trading securities 12,142 12,142 — — Equity securities 473 473 — — Total $ 1,219,853 $ 12,615 $ 1,207,238 $ — Measured on a non-recurring basis: Assets: Loans individually evaluated for impairment: Real estate loans: Commercial real estate $ 3,871 $ — $ — $ 3,871 One-to-four family residential mortgage 540 — — 540 Multifamily 12 — — 12 Home equity and lines of credit 29 — — 29 Total individually evaluated real estate loans 4,452 — — 4,452 Commercial and industrial loans 14 — — 14 Other real estate owned 100 — — 100 Total $ 4,566 $ — $ — $ 4,566 Fair Value Measurements at December 31, 2020 Using: Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (in thousands) Measured on a recurring basis: Assets: Investment securities: Debt securities available-for-sale: U.S. Government agency securities $ 3,158 $ — $ 3,158 $ — Mortgage-backed securities: Pass-through certificates: GSE 281,343 — 281,343 — REMICs: GSE 890,965 — 890,965 — Non-GSE 4 — 4 — 1,172,312 — 1,172,312 — Other debt securities: Municipal bonds 123 — 123 — Corporate bonds 88,418 — 88,418 — Asset-backed securities 794 — 794 — 89,335 — 89,335 — Total debt securities available-for-sale 1,264,805 — 1,264,805 — Trading securities 12,291 12,291 — — Equity securities 253 253 — — Total $ 1,277,349 $ 12,544 $ 1,264,805 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 5,268 $ — $ — $ 5,268 Multifamily 16 — — 16 Home equity and lines of credit 28 — — 28 Total impaired real estate loans 5,312 — — 5,312 Commercial and industrial loans 13 — — 13 Total $ 5,325 $ — $ — $ 5,325
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, 2021, and December 31, 2020 (dollars in thousands): Fair Value Valuation Methodology Unobservable Range of Inputs March 31, 2021 December 31, 2020 March 31, 2021 December 31, 2020 Individually evaluated loans $ 4,466 $ 5,325 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 6.25% 4.88% to 6.25% Other real estate owned 100 — Appraisals Discount for costs to sell 7.0% N/A
Estimated Fair Values of Significant Financial Instruments	The estimated fair value of the Company’s financial instruments at March 31, 2021, and December 31, 2020, is presented in the following tables (in thousands): March 31, 2021 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 127,570 $ 127,570 $ — $ — $ 127,570 Trading securities 12,142 12,142 — — 12,142 Debt securities available-for-sale 1,207,238 — 1,207,238 — 1,207,238 Debt securities held-to-maturity 6,913 — 7,241 — 7,241 Equity securities 473 473 — — 473 FHLBNY stock, at cost 28,641 — 28,641 — 28,641 Net loans held-for-investment 3,889,818 — — 3,959,088 3,959,088 Derivative assets 1,219 — 1,219 — 1,219 Financial liabilities: Deposits $ 4,135,716 $ — $ 4,140,621 $ — $ 4,140,621 Borrowed funds 592,170 — 604,460 — 604,460 Advance payments by borrowers for taxes and insurance 24,027 — 24,027 — 24,027 Derivative liabilities 1,220 — 1,220 — 1,220 December 31, 2020 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 87,544 $ 87,544 $ — $ — $ 87,544 Trading securities 12,291 12,291 — — 12,291 Debt securities available-for-sale 1,264,805 — 1,264,805 — 1,264,805 Debt securities held-to-maturity 7,234 — 7,574 — 7,574 Equity securities 253 253 — — 253 FHLBNY stock, at cost 28,641 — 28,641 — 28,641 Loans held-for-sale 19,895 — — 19,895 19,895 Net loans held-for-investment 3,785,631 — — 3,842,054 3,842,054 Derivative assets 1,498 — 1,498 — 1,498 Financial liabilities: Deposits $ 4,076,551 $ — $ 4,082,538 $ — $ 4,082,538 Borrowed funds 591,789 — 609,900 — 609,900 Advance payments by borrowers for taxes and insurance 19,677 — 19,677 — 19,677 Derivative liabilities 1,502 — 1,502 — 1,502

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2021
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, 2021 2020 Net income available to common stockholders $ 18,677 $ 4,551 Weighted average shares outstanding-basic 49,528,419 46,791,768 Effect of non-vested restricted stock and stock options outstanding 105,225 191,698 Weighted average shares outstanding-diluted 49,633,644 46,983,466 Earnings per share-basic $ 0.38 $ 0.10 Earnings per share-diluted $ 0.38 $ 0.10 Anti-dilutive shares 1,002,377 1,001,828

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Lease, Cost	Supplemental lease information at or for the three months ended March 31, 2021, and March 31, 2020 is as follows (dollars in thousands): Three Months Ended March 31, 2021 2020 Operating lease cost $ 1,455 $ 1,439 Variable lease cost 1,235 544 Net lease cost $ 2,690 $ 1,983 Cash paid for amounts included in measurement of operating lease liabilities $ 1,708 $ 1,545 Right-of-use assets obtained in exchange for new operating lease liabilities $ — $ 3,028 Weighted average remaining lease term 12.26 years 12.71 years Weighted average discount rate 3.60 % 3.59 %
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 2021 $ 4,669 2022 5,550 2023 5,504 2024 5,067 2025 4,710 Thereafter 28,196 Total lease payments 53,696 Less: imputed interest 11,629 Present value of lease liabilities $ 42,067

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2021
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, 2021 2020 Fees and service charges for customer services: Service charges $ 720 $ 753 ATM and card interchange fees 399 304 Investment fees 78 63 Total fees and service charges for customer services 1,197 1,120 Income on bank-owned life insurance (1) 848 876 Gains (losses) on available-for-sale debt securities, net (1) 97 (13) Gains (losses) on trading securities, net (1) 364 (1,992) Swap income (1) — 76 Other 130 41 Total non-interest income $ 2,636 $ 108 (1) Not in scope of Topic 606

Derivatives (Tables)

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2021
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, 2021 December 31, 2020 Other assets $ 1,219 $ 1,498 Other liabilities 1,220 1,502
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, 2021 December 31, 2020 Other assets $ 1,219 $ 1,498 Other liabilities 1,220 1,502

Consolidated Financial Statem_3

Consolidated Financial Statements - Narrative (Details) $ in Thousands	Dec. 31, 2020USD ($)	Mar. 31, 2021USD ($)loan	Mar. 31, 2021USD ($)loan	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Unusual or Infrequent Item, or Both [Line Items]
Allowance for credit loss	$ 37,607	$ 43,197	$ 43,197	$ 36,800	$ 28,707
Unfounded credit commitment	808	1,702	1,702
Net loans held-for-investment	3,785,631	$ 3,889,818	3,889,818
Cumulative Effect, Period of Adoption, Adjustment
Unusual or Infrequent Item, or Both [Line Items]
Increase in allowance for credit losses	11,100
Allowance for credit loss	10,353
Unfounded credit commitment	737
PCD loan related reserves	6,800
Non-PCD loan related reserves	$ 4,300
COVID-19
Unusual or Infrequent Item, or Both [Line Items]
Loan modification program, payment deferral period		90 days
Loan modification program, extension for payment deferral period		90 days
Net loans held-for-investment		$ 28,800	$ 28,800
COVID-19
Unusual or Infrequent Item, or Both [Line Items]
Number of loans approved | loan		1,757	1,757
Net loans held-for-investment		$ 167,900	$ 167,900
Loan processing fee		8,800	8,800
Loan processing fee recognized as earnings		$ 1,300	$ 3,100

Business Combinations - Additio

Business Combinations - Additional Information (Details) $ in Thousands	Jul. 01, 2020USD ($)loanlease_obligationshares	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Business Acquisition [Line Items]
Total assets		$ 5,576,924	$ 5,514,544
Net loans held-for-investment		3,889,818	3,785,631
Deposits		4,135,716	4,076,551
Operating lease liabilities		42,067	42,734
Operating lease right-of-use assets		$ 35,662	$ 36,741
Victory
Business Acquisition [Line Items]
Total assets	$ 402,800
Net loans held-for-investment	180,400
Deposits	$ 354,600
Number of branches | loan	6
Victory
Business Acquisition [Line Items]
Common stock exchange rate (shares) | shares	2.0463
Number of lease obligations | lease_obligation	5
Operating lease liabilities	$ 2,500
Operating lease right-of-use assets	$ 2,500

Business Combinations - Fair Va

Business Combinations - Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Jul. 01, 2020
Liabilities assumed:
Goodwill	$ 41,320	$ 41,320
Victory
Business Acquisition [Line Items]
Total Purchase Price			$ 41,173
Assets acquired:
Cash and cash equivalents			72,875
Debt securities available for sale			126,931
Loans			180,431
Accrued interest receivable			1,415
Bank-owned life insurance			5,714
Premises and equipment			7,789
Other assets			4,702
Total assets acquired			399,857
Liabilities assumed:
Deposits			354,592
Other liabilities			7,001
Total liabilities assumed			361,593
Net assets acquired			38,264
Goodwill			$ 2,909

Business Combinations - Summary

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

Debt Securities Available-for_3

Debt Securities Available-for-Sale - Comparative Summary of Mortgage-Backed Securities and Other Securities Available-for-Sale) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 1,190,347	$ 1,246,673
Gross unrealized gains	17,820	18,862
Gross unrealized losses	(929)	(730)
Estimated fair value	1,207,238	1,264,805
U.S. Government agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	2,758	3,168
Gross unrealized gains	0	0
Gross unrealized losses	(68)	(10)
Estimated fair value	2,690	3,158
Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	1,063,022	1,155,285
Gross unrealized gains	16,914	17,747
Gross unrealized losses	(680)	(720)
Estimated fair value	1,079,256	1,172,312
Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	124,567	88,220
Gross unrealized gains	906	1,115
Gross unrealized losses	(181)	0
Estimated fair value	125,292	89,335
GSE | Pass-through Certificates
Debt Securities, Available-for-sale [Line Items]
Amortized cost	244,399	270,867
Gross unrealized gains	9,522	10,720
Gross unrealized losses	(358)	(244)
Estimated fair value	253,563	281,343
GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	818,623	884,414
Gross unrealized gains	7,392	7,027
Gross unrealized losses	(322)	(476)
Estimated fair value	825,693	890,965
Non-GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost		4
Gross unrealized gains		0
Gross unrealized losses		0
Estimated fair value		4
Municipal bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	102	122
Gross unrealized gains	1	1
Gross unrealized losses	0	0
Estimated fair value	103	123
Corporate bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	123,732	87,319
Gross unrealized gains	891	1,099
Gross unrealized losses	(181)	0
Estimated fair value	124,442	88,418
Asset-backed securities | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	733	779
Gross unrealized gains	14	15
Gross unrealized losses	0	0
Estimated fair value	$ 747	$ 794

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, 2021	Dec. 31, 2020
Amortized cost
Amortized cost	$ 1,190,347	$ 1,246,673
Estimated fair value
Estimated fair value	1,207,238	$ 1,264,805
Other Than Mortgage Backed Securities
Amortized cost
Due in one year or less	25,288
Due after one year through five years	83,535
Due after five years through ten years	17,769
Due after ten years	733
Amortized cost	127,325
Estimated fair value
Due in one year or less	25,872
Due after one year through five years	83,815
Due after five years through ten years	17,548
Due after ten years	747
Estimated fair value	$ 127,982

Debt Securities Available-for_5

Debt Securities Available-for-Sale - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)security	Mar. 31, 2020USD ($)
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, restricted	$ 587,200
Proceeds from sales and calls of debt securities available-for-sale	5,942	$ 0
Debt securities, available-for-sale, realized gain	97	0
Debt securities, available-for-sale, realized loss	0	13
Debt securities, trading, realized gain (loss)	364	$ (2,000)
Accrued interest receivable associated with debt securities available-for-sale	$ 1,500
Real Estate Mortgage Investment Conduits (REMICs) | GSE
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position less than 12 months | security	1
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	6
Number of debt securities, unrealized loss position less than 12 months | security	22
Real Estate Mortgage Investment Conduits (REMICs) | GSE | Non Pass Through
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position less than 12 months | security	44
Real Estate Mortgage Investment Conduits (REMICs) | Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position less than 12 months | security	5

Debt Securities Available-for_6

Debt Securities Available-for-Sale - Gross Unrealized Losses on Mortgage-Backed Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	$ (924)	$ (719)
Estimated fair value, less than 12 months	128,847	242,146
Unrealized losses, 12 months or more	(5)	(11)
Estimated fair value, 12 months or more	254	459
Unrealized losses, total	(929)	(730)
Estimated fair value, total	129,101	242,605
U.S. Government agency securities
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	(68)	(10)
Estimated fair value, less than 12 months	2,690	3,158
Unrealized losses, 12 months or more	0	0
Estimated fair value, 12 months or more	0	0
Unrealized losses, total	(68)	(10)
Estimated fair value, total	2,690	3,158
GSE | Pass-through Certificates
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	(353)	(233)
Estimated fair value, less than 12 months	33,531	28,419
Unrealized losses, 12 months or more	(5)	(11)
Estimated fair value, 12 months or more	254	459
Unrealized losses, total	(358)	(244)
Estimated fair value, total	33,785	28,878
GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	(322)	(476)
Estimated fair value, less than 12 months	57,352	210,569
Unrealized losses, 12 months or more	0	0
Estimated fair value, 12 months or more	0	0
Unrealized losses, total	(322)	(476)
Estimated fair value, total	57,352	$ 210,569
Corporate bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	(181)
Estimated fair value, less than 12 months	35,274
Unrealized losses, 12 months or more	0
Estimated fair value, 12 months or more	0
Unrealized losses, total	(181)
Estimated fair value, total	$ 35,274

Debt Securities Held-to-Matur_3

Debt Securities Held-to-Maturity - Mortgage Backed Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 6,913	$ 7,234
Gross Unrealized Gains	328	340
Gross Unrealized Losses	0	0
Estimated Fair Value	7,241	7,574
Mortgage Backed Securities Pass Through Certificates
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	6,913	7,234
Gross Unrealized Gains	328	340
Gross Unrealized Losses	0	0
Estimated Fair Value	$ 7,241	$ 7,574

Debt Securities Held-to-Matur_4

Debt Securities Held-to-Maturity - Additional Information (Details)	3 Months Ended
	Mar. 31, 2021USD ($)security	Mar. 31, 2020USD ($)	Dec. 31, 2020security
Investments, Debt and Equity Securities [Abstract]
Held-to-maturity securities sold	$ 0	$ 0
Held-to-maturity securities pledged to secure borrowings and deposits	$ 5,900,000
Held-to-maturity securities unrealized loss position | security	0		0
Accrued interest receivable associated with held-to-maturity securities	$ 20,800

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Equity securities	$ 473	$ 253

Loans - Net Loans Held-for-Inve

Loans - Net Loans Held-for-Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans held-for-investment, net	$ 3,933,015	$ 3,823,238
Less: allowance for loan losses	(43,197)	(37,607)	$ (36,800)	$ (28,707)
Net loans held-for-investment	3,889,818	3,785,631
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Deferred origination loan costs, net	0	4,795
Loans held-for-investment, net	3,914,970	3,804,720
Less: allowance for loan losses	(37,915)	(36,726)	(36,011)	(27,918)
PCD/PCI loans
Loans and Leases Receivable Disclosure [Line Items]
Loans held-for-investment, net	18,045	18,518
Less: allowance for loan losses	(5,282)	(881)	(789)	(789)
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	3,678,794	3,602,544
Loans held-for-investment, net	3,678,794	3,610,210
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,571,409	2,509,310
Loans held-for-investment, net	2,571,409	2,512,934
Less: allowance for loan losses			(26,889)	(20,203)
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Commercial mortgage
Loans and Leases Receivable Disclosure [Line Items]
Loans	734,113	716,973
Loans held-for-investment, net	734,113	717,566
Less: allowance for loan losses			(5,444)	(4,891)
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	202,948	210,817
Loans held-for-investment, net	202,948	212,222
Less: allowance for loan losses	(5,172)	(207)	(312)	(180)
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	93,118	91,126
Loans held-for-investment, net	93,118	93,137
Less: allowance for loan losses	(643)	(260)	(574)	(317)
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Construction and land
Loans and Leases Receivable Disclosure [Line Items]
Loans	77,206	74,318
Loans held-for-investment, net	77,206	74,351
Less: allowance for loan losses	(269)	(1,214)	(671)	(536)
Commercial and industrial and other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	236,176	197,381
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	234,518	194,352
Loans held-for-investment, net	234,518	191,481
Less: allowance for loan losses	(2,940)	(1,842)	(2,035)	(1,640)
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,658	3,029
Loans held-for-investment, net	1,658	3,029
Less: allowance for loan losses	(9)	(198)	$ (86)	$ (151)
Paycheck Protection Program | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 167,900	$ 126,500

Loans - Narrative, Loans Held-f

Loans - Narrative, Loans Held-for-Investment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-sale	$ 0	$ 19,895
PCI loans	$ 3,933,015	$ 3,823,238
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	26.00%	23.00%
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	44.00%	40.00%
One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	16.00%	22.00%
PCD/PCI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	$ 18,045	$ 18,518

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, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held-for-investment, net	$ 3,933,015	$ 3,823,238
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	275,214
2020	790,659
2019	562,332
2018	517,337
2017	379,920
Prior	1,318,252
Revolving Loans	71,256
Loans held-for-investment, net	3,914,970	3,804,720
Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held-for-investment, net		3,731,891
Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held-for-investment, net		24,145
Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held-for-investment, net		48,684
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	206,585
2020	676,525
2019	555,323
2018	513,116
2017	378,417
Prior	1,304,051
Revolving Loans	44,777
Loans held-for-investment, net	3,678,794	3,610,210
Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	161,305
2020	562,841
2019	412,000
2018	348,996
2017	283,681
Prior	802,542
Revolving Loans	44
Loans held-for-investment, net	2,571,409	2,512,934
Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	161,305
2020	562,841
2019	407,309
2018	345,635
2017	283,681
Prior	793,689
Revolving Loans	44
Loans held-for-investment, net	2,554,504	2,497,556
Real estate loans: | Multifamily | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	450
Revolving Loans	0
Loans held-for-investment, net	450	458
Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	0
2020	0
2019	4,691
2018	3,361
2017	0
Prior	8,403
Revolving Loans	0
Loans held-for-investment, net	16,455	14,920
Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	33,829
2020	75,026
2019	111,164
2018	102,343
2017	70,809
Prior	336,859
Revolving Loans	4,083
Loans held-for-investment, net	734,113	717,566
Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	33,829
2020	72,556
2019	100,207
2018	92,969
2017	66,730
Prior	312,858
Revolving Loans	3,583
Loans held-for-investment, net	682,732	667,568
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]
2021	0
2020	0
2019	1,297
2018	9,046
2017	0
Prior	9,506
Revolving Loans	500
Loans held-for-investment, net	20,349	20,422
Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	0
2020	2,470
2019	9,660
2018	328
2017	4,079
Prior	14,495
Revolving Loans	0
Loans held-for-investment, net	31,032	29,576
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]
2021	966
2020	9,689
2019	15,256
2018	15,717
2017	13,097
Prior	146,610
Revolving Loans	1,613
Loans held-for-investment, net	202,948	212,222
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]
2021	966
2020	9,689
2019	14,189
2018	15,717
2017	13,097
Prior	141,652
Revolving Loans	1,613
Loans held-for-investment, net	196,923	207,633
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]
2021	0
2020	0
2019	467
2018	0
2017	0
Prior	2,428
Revolving Loans	0
Loans held-for-investment, net	2,895	2,456
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]
2021	0
2020	0
2019	600
2018	0
2017	0
Prior	2,530
Revolving Loans	0
Loans held-for-investment, net	3,130	2,133
Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	6,654
2020	14,328
2019	6,910
2018	37,140
2017	7,515
Prior	3,641
Revolving Loans	1,018
Loans held-for-investment, net	77,206	74,351
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]
2021	6,654
2020	14,328
2019	5,760
2018	36,750
2017	7,515
Prior	3,641
Revolving Loans	1,018
Loans held-for-investment, net	75,666	74,351
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]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Revolving Loans	0
Loans held-for-investment, net	0	0
Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	0
2020	0
2019	1,150
2018	390
2017	0
Prior	0
Revolving Loans	0
Loans held-for-investment, net	1,540	0
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]
2021	3,831
2020	14,641
2019	9,993
2018	8,920
2017	3,315
Prior	14,399
Revolving Loans	38,019
Loans held-for-investment, net	93,118	93,137
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]
2021	3,831
2020	14,641
2019	9,894
2018	8,832
2017	3,315
Prior	13,848
Revolving Loans	38,019
Loans held-for-investment, net	92,380	92,385
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]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	306
Revolving Loans	0
Loans held-for-investment, net	306	311
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]
2021	0
2020	0
2019	99
2018	88
2017	0
Prior	245
Revolving Loans	0
Loans held-for-investment, net	432	441
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	67,372
2020	113,943
2019	6,977
2018	4,170
2017	1,503
Prior	14,147
Revolving Loans	26,406
Loans held-for-investment, net	234,518	191,481
Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	67,372
2020	113,363
2019	6,407
2018	3,462
2017	1,356
Prior	12,961
Revolving Loans	26,406
Loans held-for-investment, net	231,327	189,372
Commercial and industrial loans | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	0
2020	81
2019	210
2018	42
2017	147
Prior	324
Revolving Loans	0
Loans held-for-investment, net	804	498
Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	0
2020	499
2019	360
2018	666
2017	0
Prior	862
Revolving Loans	0
Loans held-for-investment, net	2,387	1,611
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	1,257
2020	191
2019	32
2018	51
2017	0
Prior	54
Revolving Loans	73
Loans held-for-investment, net	1,658	3,029
Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	1,257
2020	191
2019	32
2018	51
2017	0
Prior	51
Revolving Loans	73
Loans held-for-investment, net	1,655	3,026
Other loans | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held-for-investment, net		0
Other loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	3
Revolving Loans	0
Loans held-for-investment, net	$ 3	$ 3

Loans - Investment of Originate

Loans - Investment of Originated Loans Held-for-Investment by Loan Type and Credit Quality Indicator (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	$ 3,933,015	$ 3,823,238
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	3,914,970	3,804,720
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	3,678,794	3,610,210
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	234,518	191,481
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	1,658	3,029
Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net		3,731,891
Pass | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	231,327	189,372
Pass | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	1,655	3,026
Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net		24,145
Special Mention | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	804	498
Special Mention | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net		0
Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net		48,684
Substandard | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	2,387	1,611
Substandard | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	3	3
Multifamily | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	2,571,409	2,512,934
Multifamily | Pass | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	2,554,504	2,497,556
Multifamily | Special Mention | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	450	458
Multifamily | Substandard | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	16,455	14,920
Commercial mortgage | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	734,113	717,566
Commercial mortgage | Pass | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	682,732	667,568
Commercial mortgage | Special Mention | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	20,349	20,422
Commercial mortgage | Substandard | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	31,032	29,576
One-to-Four Family | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	202,948	212,222
One-to-Four Family | Pass | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	196,923	207,633
One-to-Four Family | Special Mention | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	2,895	2,456
One-to-Four Family | Substandard | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	3,130	2,133
Construction and land | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	77,206	74,351
Construction and land | Pass | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	75,666	74,351
Construction and land | Special Mention | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	0	0
Construction and land | Substandard | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	1,540	0
Home equity and lines of credit | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	93,118	93,137
Home equity and lines of credit | Pass | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	92,380	92,385
Home equity and lines of credit | Special Mention | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	306	311
Home equity and lines of credit | Substandard | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans held-for-investment, net	$ 432	$ 441

Loans - Narrative, Past Due and

Loans - Narrative, Past Due and Non-Accrual Loans (Details) - USD ($)	3 Months Ended	9 Months Ended
	Mar. 31, 2021	Sep. 30, 2020	Dec. 31, 2020
Receivables [Abstract]
Non-accrual loans	$ 8,446,000		$ 8,500,000
Criteria days for delinquent status	90 days	90 days
Principal balance of loans on non accrual status, less then	$ 500,000
Impairment of loans	5,400,000		5,500,000
Loans on non accrual status with principal balances below threshold definition of an impaired loan	3,000,000		3,000,000
90 days or more past due and accruing	1,600,000		1,100,000
Loans held-for-sale	$ 0		$ 19,895,000

Loans - Details and Delinquency

Loans - Details and Delinquency Status Of Nonperforming Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	$ 1,600	$ 1,100
Loans held-for-investment, net	3,933,015	3,823,238
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	3,282	3,302
Non-Accruing Loans	8,446	8,516
90 Days or More Past Due and Accruing	1,648	1,113
Loans held-for-investment, net	10,094	9,629
Non-Performing Loans | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	3,281	3,302
Non-Accruing Loans	8,248	8,479
90 Days or More Past Due and Accruing	907	674
Loans held-for-investment, net	9,155	9,153
Non-Performing Loans | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	2,817	2,829
Non-Accruing Loans	4,961	6,229
90 Days or More Past Due and Accruing	219	500
Loans held-for-investment, net	5,180	6,729
Non-Performing Loans | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	406	413
Non-Accruing Loans	805	906
90 Days or More Past Due and Accruing	172	174
Loans held-for-investment, net	977	1,080
Non-Performing Loans | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0
Non-Accruing Loans	1,150
90 Days or More Past Due and Accruing	0
Loans held-for-investment, net	1,150
Non-Performing Loans | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0	0
Non-Accruing Loans	1,145	1,153
90 Days or More Past Due and Accruing	516	0
Loans held-for-investment, net	1,661	1,153
Non-Performing Loans | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	58	60
Non-Accruing Loans	187	191
90 Days or More Past Due and Accruing	0	0
Loans held-for-investment, net	187	191
Non-Performing Loans | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	1	0
Non-Accruing Loans	198	37
90 Days or More Past Due and Accruing	738	436
Loans held-for-investment, net	936	473
Non-Performing Loans | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0	0
Non-Accruing Loans	0	0
90 Days or More Past Due and Accruing	3	3
Loans held-for-investment, net	3	3
Non-Performing Loans | Substandard | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	2,817	2,829
Non-Accruing Loans	4,961	6,229
90 Days or More Past Due and Accruing	219	0
Loans held-for-investment, net	5,180	6,229
Non-Performing Loans | Substandard | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	406	413
Non-Accruing Loans	805	906
90 Days or More Past Due and Accruing	172	174
Loans held-for-investment, net	977	1,080
Non-Performing Loans | Substandard | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0
Non-Accruing Loans	1,150
90 Days or More Past Due and Accruing	0
Loans held-for-investment, net	1,150
Non-Performing Loans | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0	0
Non-Accruing Loans	1,145	1,153
90 Days or More Past Due and Accruing	516	0
Loans held-for-investment, net	1,661	1,153
Non-Performing Loans | Substandard | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	58	60
Non-Accruing Loans	187	191
90 Days or More Past Due and Accruing	0	0
Loans held-for-investment, net	187	191
Non-Performing Loans | Substandard | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	1	0
Non-Accruing Loans	198	37
90 Days or More Past Due and Accruing	561	250
Loans held-for-investment, net	759	287
Non-Performing Loans | Pass | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current		0
Non-Accruing Loans		0
90 Days or More Past Due and Accruing		500
Loans held-for-investment, net		500
Non-Performing Loans | Pass | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0	0
Non-Accruing Loans	0	0
90 Days or More Past Due and Accruing	92	101
Loans held-for-investment, net	92	101
Non-Performing Loans | Pass | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0	0
Non-Accruing Loans	0	0
90 Days or More Past Due and Accruing	3	3
Loans held-for-investment, net	3	3
Non-Performing Loans | Special Mention | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0	0
Non-Accruing Loans	0	0
90 Days or More Past Due and Accruing	85	85
Loans held-for-investment, net	85	85
Non-Performing Loans | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	136	537
Non-Performing Loans | 30-89 Days Past Due | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	100	537
Non-Performing Loans | 30-89 Days Past Due | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	100	537
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]
Non-Accruing Loans	0	0
Non-Performing Loans | 30-89 Days Past Due | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0
Non-Performing Loans | 30-89 Days Past Due | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	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]
Non-Accruing Loans	0	0
Non-Performing Loans | 30-89 Days Past Due | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	36	0
Non-Performing Loans | 30-89 Days Past Due | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	100	537
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]
Non-Accruing Loans	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	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]
Non-Accruing Loans	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	36	0
Non-Performing Loans | 30-89 Days Past Due | Pass | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans		0
Non-Performing Loans | 30-89 Days Past Due | Pass | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0	0
Non-Performing Loans | 30-89 Days Past Due | Pass | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0	0
Non-Performing Loans | 30-89 Days Past Due | Special Mention | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0	0
Non-Performing Loans | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	5,028	4,677
Non-Performing Loans | 90 Days or More Past Due | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	4,867	4,640
Non-Performing Loans | 90 Days or More Past Due | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	2,044	2,863
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]
Non-Accruing Loans	399	493
Non-Performing Loans | 90 Days or More Past Due | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	1,150
Non-Performing Loans | 90 Days or More Past Due | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	1,145	1,153
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]
Non-Accruing Loans	129	131
Non-Performing Loans | 90 Days or More Past Due | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	161	37
Non-Performing Loans | 90 Days or More Past Due | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	2,044	2,863
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]
Non-Accruing Loans	399	493
Non-Performing Loans | 90 Days or More Past Due | Substandard | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	1,150
Non-Performing Loans | 90 Days or More Past Due | Substandard | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	1,145	1,153
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]
Non-Accruing Loans	129	131
Non-Performing Loans | 90 Days or More Past Due | Substandard | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	161	37
Non-Performing Loans | 90 Days or More Past Due | Pass | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans		0
Non-Performing Loans | 90 Days or More Past Due | Pass | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0	0
Non-Performing Loans | 90 Days or More Past Due | Pass | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	0	0
Non-Performing Loans | 90 Days or More Past Due | Special Mention | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Accruing Loans	$ 0	$ 0

Loans - Loans Held-for-Invest_2

Loans - Loans Held-for-Investment by Performing and Non-Performing Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	$ 1,600	$ 1,100
Loans held-for-investment, net	3,933,015	3,823,238
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	1,648
Total Past Due	20,959
Current	3,894,011
Loans held-for-investment, net	3,914,970	3,804,720
Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		3,731,891
Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		24,145
Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		48,684
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	907
Total Past Due	17,535
Current	3,661,259
Loans held-for-investment, net	3,678,794	3,610,210
Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	219
Total Past Due	6,820
Current	727,293
Loans held-for-investment, net	734,113	717,566
Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	0
Total Past Due	1,651
Current	681,081
Loans held-for-investment, net	682,732	667,568
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]
90 Days or More Past Due and Accruing	0
Total Past Due	0
Current	20,349
Loans held-for-investment, net	20,349	20,422
Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	219
Total Past Due	5,169
Current	25,863
Loans held-for-investment, net	31,032	29,576
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]
90 Days or More Past Due and Accruing	172
Total Past Due	4,594
Current	198,354
Loans held-for-investment, net	202,948	212,222
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]
90 Days or More Past Due and Accruing	0
Total Past Due	1,827
Current	195,096
Loans held-for-investment, net	196,923	207,633
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]
90 Days or More Past Due and Accruing	0
Total Past Due	1,085
Current	1,810
Loans held-for-investment, net	2,895	2,456
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]
90 Days or More Past Due and Accruing	172
Total Past Due	1,682
Current	1,448
Loans held-for-investment, net	3,130	2,133
Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	0
Total Past Due	1,540
Current	75,666
Loans held-for-investment, net	77,206	74,351
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]
90 Days or More Past Due and Accruing	0
Total Past Due	0
Current	75,666
Loans held-for-investment, net	75,666	74,351
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]
Loans held-for-investment, net	0	0
Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	0
Total Past Due	1,540
Current	0
Loans held-for-investment, net	1,540	0
Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	516
Total Past Due	4,080
Current	2,567,329
Loans held-for-investment, net	2,571,409	2,512,934
Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	0
Total Past Due	1,256
Current	2,553,248
Loans held-for-investment, net	2,554,504	2,497,556
Real estate loans: | Multifamily | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	0
Total Past Due	0
Current	450
Loans held-for-investment, net	450	458
Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	516
Total Past Due	2,824
Current	13,631
Loans held-for-investment, net	16,455	14,920
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]
90 Days or More Past Due and Accruing	0
Total Past Due	501
Current	92,617
Loans held-for-investment, net	93,118	93,137
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]
90 Days or More Past Due and Accruing	0
Total Past Due	229
Current	92,151
Loans held-for-investment, net	92,380	92,385
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]
90 Days or More Past Due and Accruing	0
Total Past Due	44
Current	262
Loans held-for-investment, net	306	311
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]
90 Days or More Past Due and Accruing	0
Total Past Due	228
Current	204
Loans held-for-investment, net	432	441
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	738
Total Past Due	3,414
Current	231,104
Loans held-for-investment, net	234,518	191,481
Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	92
Total Past Due	1,563
Current	229,764
Loans held-for-investment, net	231,327	189,372
Commercial and industrial loans | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	85
Total Past Due	344
Current	460
Loans held-for-investment, net	804	498
Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	561
Total Past Due	1,507
Current	880
Loans held-for-investment, net	2,387	1,611
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	3
Total Past Due	10
Current	1,648
Loans held-for-investment, net	1,658	3,029
Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	0
Total Past Due	7
Current	1,648
Loans held-for-investment, net	1,655	3,026
Other loans | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		0
Other loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	3
Total Past Due	3
Current	0
Loans held-for-investment, net	3	3
Performing (Accruing) Loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		3,795,091
Performing (Accruing) Loans | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		3,601,057
Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		710,837
Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		667,068
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		20,422
Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		23,347
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		211,142
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		207,633
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		2,456
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		1,053
Performing (Accruing) Loans | Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		74,351
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		74,351
Performing (Accruing) Loans | Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		2,511,781
Performing (Accruing) Loans | Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		2,497,556
Performing (Accruing) Loans | Real estate loans: | Multifamily | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		458
Performing (Accruing) Loans | Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		13,767
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		92,946
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		92,385
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		311
Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		250
Performing (Accruing) Loans | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		191,008
Performing (Accruing) Loans | Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		189,271
Performing (Accruing) Loans | Commercial and industrial loans | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		413
Performing (Accruing) Loans | Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		1,324
Performing (Accruing) Loans | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		3,026
Performing (Accruing) Loans | Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		3,026
Performing (Accruing) Loans | Other loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		0
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	8,446	8,516
90 Days or More Past Due and Accruing	1,648	1,113
Current	3,282	3,302
Loans held-for-investment, net	10,094	9,629
Non-Performing Loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		9,629
Non-Performing Loans | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	8,248	8,479
90 Days or More Past Due and Accruing	907	674
Current	3,281	3,302
Loans held-for-investment, net	9,155	9,153
Non-Performing Loans | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		9,153
Non-Performing Loans | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	4,961	6,229
90 Days or More Past Due and Accruing	219	500
Current	2,817	2,829
Loans held-for-investment, net	5,180	6,729
Non-Performing Loans | Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		6,729
Non-Performing Loans | Real estate loans: | Commercial mortgage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		0
90 Days or More Past Due and Accruing		500
Current		0
Loans held-for-investment, net		500
Non-Performing Loans | Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		500
Non-Performing Loans | 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]
Loans held-for-investment, net		0
Non-Performing Loans | Real estate loans: | Commercial mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	4,961	6,229
90 Days or More Past Due and Accruing	219	0
Current	2,817	2,829
Loans held-for-investment, net	5,180	6,229
Non-Performing Loans | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		6,229
Non-Performing Loans | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	805	906
90 Days or More Past Due and Accruing	172	174
Current	406	413
Loans held-for-investment, net	977	1,080
Non-Performing Loans | 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]
Loans held-for-investment, net		1,080
Non-Performing Loans | 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]
Loans held-for-investment, net		0
Non-Performing Loans | 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]
Loans held-for-investment, net		0
Non-Performing Loans | Real estate loans: | One-to-four family residential mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	805	906
90 Days or More Past Due and Accruing	172	174
Current	406	413
Loans held-for-investment, net	977	1,080
Non-Performing Loans | 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]
Loans held-for-investment, net		1,080
Non-Performing Loans | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,150
90 Days or More Past Due and Accruing	0
Current	0
Loans held-for-investment, net	1,150
Non-Performing Loans | Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		0
Non-Performing Loans | 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]
Loans held-for-investment, net		0
Non-Performing Loans | Real estate loans: | Construction and land | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,150
90 Days or More Past Due and Accruing	0
Current	0
Loans held-for-investment, net	1,150
Non-Performing Loans | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,145	1,153
90 Days or More Past Due and Accruing	516	0
Current	0	0
Loans held-for-investment, net	1,661	1,153
Non-Performing Loans | Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		1,153
Non-Performing Loans | Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		0
Non-Performing Loans | Real estate loans: | Multifamily | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		0
Non-Performing Loans | Real estate loans: | Multifamily | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,145	1,153
90 Days or More Past Due and Accruing	516	0
Current	0	0
Loans held-for-investment, net	1,661	1,153
Non-Performing Loans | Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		1,153
Non-Performing Loans | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	187	191
90 Days or More Past Due and Accruing	0	0
Current	58	60
Loans held-for-investment, net	187	191
Non-Performing Loans | 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]
Loans held-for-investment, net		191
Non-Performing Loans | 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]
Loans held-for-investment, net		0
Non-Performing Loans | 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]
Loans held-for-investment, net		0
Non-Performing Loans | Real estate loans: | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	187	191
90 Days or More Past Due and Accruing	0	0
Current	58	60
Loans held-for-investment, net	187	191
Non-Performing Loans | 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]
Loans held-for-investment, net		191
Non-Performing Loans | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	198	37
90 Days or More Past Due and Accruing	738	436
Current	1	0
Loans held-for-investment, net	936	473
Non-Performing Loans | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		473
Non-Performing Loans | Commercial and industrial loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
90 Days or More Past Due and Accruing	92	101
Current	0	0
Loans held-for-investment, net	92	101
Non-Performing Loans | Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		101
Non-Performing Loans | Commercial and industrial loans | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
90 Days or More Past Due and Accruing	85	85
Current	0	0
Loans held-for-investment, net	85	85
Non-Performing Loans | Commercial and industrial loans | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		85
Non-Performing Loans | Commercial and industrial loans | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	198	37
90 Days or More Past Due and Accruing	561	250
Current	1	0
Loans held-for-investment, net	759	287
Non-Performing Loans | Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		287
Non-Performing Loans | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
90 Days or More Past Due and Accruing	3	3
Current	0	0
Loans held-for-investment, net	3	3
Non-Performing Loans | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		3
Non-Performing Loans | Other loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
90 Days or More Past Due and Accruing	3	3
Current	0	0
Loans held-for-investment, net	3	3
Non-Performing Loans | Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		0
Non-Performing Loans | Other loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-investment, net		3
0-29 Days Past Due | Performing (Accruing) Loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		3,781,109
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		3,587,846
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		702,045
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		660,996
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		20,350
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		20,699
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		209,990
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		207,351
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		1,586
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		1,053
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		73,357
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		73,357
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		2,509,888
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		2,496,273
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Multifamily | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		458
0-29 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		13,157
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		92,566
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		92,305
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		111
0-29 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		150
0-29 Days Past Due | Performing (Accruing) Loans | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		190,248
0-29 Days Past Due | Performing (Accruing) Loans | Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		188,639
0-29 Days Past Due | Performing (Accruing) Loans | Commercial and industrial loans | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		352
0-29 Days Past Due | Performing (Accruing) Loans | Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		1,257
0-29 Days Past Due | Performing (Accruing) Loans | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		3,015
0-29 Days Past Due | Performing (Accruing) Loans | Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		3,015
0-29 Days Past Due | Performing (Accruing) Loans | Other loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		0
30-89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	14,283
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]
Financing Receivable, Past Due	11,761
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]
Financing Receivable, Past Due	4,557
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]
Financing Receivable, Past Due	1,651
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]
Financing Receivable, Past Due	0
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]
Financing Receivable, Past Due	2,906
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]
Financing Receivable, Past Due	4,023
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]
Financing Receivable, Past Due	1,827
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]
Financing Receivable, Past Due	1,085
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]
Financing Receivable, Past Due	1,111
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]
Financing Receivable, Past Due	390
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]
Financing Receivable, Past Due	0
30-89 Days Past Due | Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	390
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]
Financing Receivable, Past Due	2,419
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]
Financing Receivable, Past Due	1,256
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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	1,163
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]
Financing Receivable, Past Due	372
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]
Financing Receivable, Past Due	229
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]
Financing Receivable, Past Due	44
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]
Financing Receivable, Past Due	99
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]
Financing Receivable, Past Due	2,515
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]
Financing Receivable, Past Due	1,471
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]
Financing Receivable, Past Due	259
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]
Financing Receivable, Past Due	785
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]
Financing Receivable, Past Due	7
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]
Financing Receivable, Past Due	7
30-89 Days Past Due | Other loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0
30-89 Days Past Due | Performing (Accruing) Loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		13,982
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		13,211
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		8,792
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		6,072
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		72
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		2,648
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		1,152
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		282
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		870
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		0
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		994
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		994
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		1,893
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Multifamily | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		1,283
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Multifamily | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		0
30-89 Days Past Due | Performing (Accruing) Loans | Real estate loans: | Multifamily | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		610
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		380
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		80
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		200
30-89 Days Past Due | Performing (Accruing) Loans | 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]
Financing Receivable, Past Due		100
30-89 Days Past Due | Performing (Accruing) Loans | Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		760
30-89 Days Past Due | Performing (Accruing) Loans | Commercial and industrial loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		632
30-89 Days Past Due | Performing (Accruing) Loans | Commercial and industrial loans | Special Mention | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		61
30-89 Days Past Due | Performing (Accruing) Loans | Commercial and industrial loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		67
30-89 Days Past Due | Performing (Accruing) Loans | Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		11
30-89 Days Past Due | Performing (Accruing) Loans | Other loans | Pass | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		11
30-89 Days Past Due | Performing (Accruing) Loans | Other loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		0
30-89 Days Past Due | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	136	537
30-89 Days Past Due | Non-Performing Loans | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	100	537
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	100	537
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Commercial mortgage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		0
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Commercial mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	100	537
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | One-to-four family residential mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Construction and land | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Multifamily | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Real estate loans: | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	36	0
30-89 Days Past Due | Non-Performing Loans | Commercial and industrial loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Commercial and industrial loans | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Commercial and industrial loans | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	36	0
30-89 Days Past Due | Non-Performing Loans | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
30-89 Days Past Due | Non-Performing Loans | Other loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
90 Days or More Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	5,028
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]
Financing Receivable, Past Due	4,867
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]
Financing Receivable, Past Due	2,044
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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	0
90 Days or More Past Due | Real estate loans: | Commercial mortgage | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	2,044
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]
Financing Receivable, Past Due	399
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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	399
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]
Financing Receivable, Past Due	1,150
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]
Financing Receivable, Past Due	0
90 Days or More Past Due | Real estate loans: | Construction and land | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,150
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]
Financing Receivable, Past Due	1,145
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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	1,145
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]
Financing Receivable, Past Due	129
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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	129
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]
Financing Receivable, Past Due	161
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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	161
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]
Financing Receivable, Past Due	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]
Financing Receivable, Past Due	0
90 Days or More Past Due | Other loans | Substandard | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0
90 Days or More Past Due | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	5,028	4,677
90 Days or More Past Due | Non-Performing Loans | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	4,867	4,640
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	2,044	2,863
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Commercial mortgage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due		0
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Commercial mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	2,044	2,863
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	399	493
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | One-to-four family residential mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	399	493
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,150
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Construction and land | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,150
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,145	1,153
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Multifamily | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	1,145	1,153
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	129	131
90 Days or More Past Due | Non-Performing Loans | Real estate loans: | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	129	131
90 Days or More Past Due | Non-Performing Loans | Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	161	37
90 Days or More Past Due | Non-Performing Loans | Commercial and industrial loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
90 Days or More Past Due | Non-Performing Loans | Commercial and industrial loans | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
90 Days or More Past Due | Non-Performing Loans | Commercial and industrial loans | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	161	37
90 Days or More Past Due | Non-Performing Loans | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	0	0
90 Days or More Past Due | Non-Performing Loans | Other loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Past Due	$ 0	$ 0

Loans - Non-Accrual Loans, Excl

Loans - Non-Accrual Loans, Excluding PCD Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	$ 8,446	$ 8,500
Unpaid Principal Balance	9,439
With No Related Allowance	4,654
Interest Income	49
Real estate loans: | Commercial mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	4,961
Unpaid Principal Balance	5,471
With No Related Allowance	3,275
Interest Income	25
Real estate loans: | One-to-Four Family
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	805
Unpaid Principal Balance	836
With No Related Allowance	228
Interest Income	6
Real estate loans: | Construction and land
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	1,150
Unpaid Principal Balance	1,150
With No Related Allowance	1,150
Interest Income	0
Real estate loans: | Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	1,145
Unpaid Principal Balance	1,154
With No Related Allowance	0
Interest Income	14
Real estate loans: | Home equity and lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	187
Unpaid Principal Balance	436
With No Related Allowance	0
Interest Income	2
Real estate loans: | Commercial and industrial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	198
Unpaid Principal Balance	392
With No Related Allowance	1
Interest Income	$ 2

Loans - Summary of Impaired Loa

Loans - Summary of Impaired Loans (Details) $ in Thousands	Dec. 31, 2020USD ($)
Recorded Investment
With No Allowance Recorded	$ 7,800
Total	13,242
Unpaid Principal Balance
Total	15,512
Related Allowance	(73)
Real estate loans:
Recorded Investment
With No Allowance Recorded	11,382
With a Related Allowance Recorded	1,844
Unpaid Principal Balance
With No Allowance Recorded	13,220
With a Related Allowance Recorded	2,276
Related Allowance	(69)
Real estate loans: | Commercial mortgage
Recorded Investment
With No Allowance Recorded	8,838
With a Related Allowance Recorded	1,812
Total	10,650
Unpaid Principal Balance
With No Allowance Recorded	10,076
With a Related Allowance Recorded	2,244
Total	12,320
Related Allowance	(66)
Real estate loans: | One-to-four family residential mortgage
Recorded Investment
With No Allowance Recorded	1,903
Total	1,903
Unpaid Principal Balance
With No Allowance Recorded	2,032
Total	2,032
Related Allowance	0
Real estate loans: | Multifamily
Recorded Investment
With No Allowance Recorded	626
Total	626
Unpaid Principal Balance
With No Allowance Recorded	1,097
Total	1,097
Related Allowance	0
Real estate loans: | Home equity and lines of credit
Recorded Investment
With No Allowance Recorded	15
With a Related Allowance Recorded	32
Total	47
Unpaid Principal Balance
With No Allowance Recorded	15
With a Related Allowance Recorded	32
Total	47
Related Allowance	(3)
Commercial and industrial loans
Recorded Investment
With a Related Allowance Recorded	16
Total	16
Unpaid Principal Balance
With a Related Allowance Recorded	16
Total	16
Related Allowance	$ (4)

Loans - Average Recorded Invest

Loans - Average Recorded Investment and Interest Recognized on Impaired Loans (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)
Average Recorded Investment
Total	$ 20,738
Interest Income
Total	159
Real estate loans: | Commercial mortgage
Average Recorded Investment
With No Allowance Recorded	16,198
With a Related Allowance Recorded	930
Total	17,128
Interest Income
With No Allowance Recorded	112
With a Related Allowance Recorded	0
Total	112
Real estate loans: | One-to-four family residential mortgage
Average Recorded Investment
With No Allowance Recorded	2,464
Total	2,464
Interest Income
With No Allowance Recorded	33
Total	33
Real estate loans: | Multifamily
Average Recorded Investment
With No Allowance Recorded	1,036
Total	1,036
Interest Income
With No Allowance Recorded	13
Total	13
Real estate loans: | Home equity and lines of credit
Average Recorded Investment
With No Allowance Recorded	21
With a Related Allowance Recorded	33
Total	54
Interest Income
With No Allowance Recorded	0
With a Related Allowance Recorded	1
Total	1
Commercial and industrial loans
Average Recorded Investment
With No Allowance Recorded	38
With a Related Allowance Recorded	18
Total	56
Interest Income
With No Allowance Recorded	0
With a Related Allowance Recorded	0
Total	$ 0

Loans - Narrative, Collateral-D

Loans - Narrative, Collateral-Dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	$ 9,800	$ 10,000
Real estate loans: | Commercial mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	7,600
Real estate loans: | Construction and land
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	1,200
Real estate loans: | Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	610
Real estate loans: | One-to-Four Family
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	$ 388

Loans - Narrative, Troubled Deb

Loans - Narrative, Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)loancontract	Mar. 31, 2020loancontract	Dec. 31, 2020USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract) | loan	0	0
Net loans held-for-investment	$ 3,889,818		$ 3,785,631
Troubled debt restructurings	$ 11,700		$ 12,100
Number of TDR loans restructured that subsequently defaulted (contract) | contract	0	27,000
COVID-19
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan modification program, extension for payment deferral period	90 days
Loan modification program, payment deferral period	90 days
Non-TDR loan restructuring modifications (contracts) | loan	24
Net loans held-for-investment	$ 28,800
Deferred interest payback period, maximum	18 months
COVID-19 | Principal deferral (interest only)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-TDR loan restructuring modifications (contracts) | loan	7
Net loans held-for-investment	$ 8,800
COVID-19 | Deferrable notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-TDR loan restructuring modifications (contracts) | loan	17
Net loans held-for-investment	$ 20,000

Allowance for Credit Losses o_3

Allowance for Credit Losses on Loans (“ACL”) - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	$ 37,607	$ 43,197	$ 36,800	$ 28,707
Financing receivable, accrued interest receivable		13,200
Individually evaluated for impairment threshold		500
Individually evaluated for impairment	73	$ 77
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	10,353
PCD loan related reserves	$ 6,800

Allowance for Credit Losses o_4

Allowance for Credit Losses on Loans (“ACL”) - Allowance for Credit Losses for Off-Balance Sheet Credit (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	$ 808
Provision for credit losses	157
Ending balance	1,702
Cumulative Effect, Period of Adoption, Adjustment
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	737
Cumulative Effect, Period of Adoption, Adjusted Balance
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	$ 1,545

Allowance for Credit Losses o_5

Allowance for Credit Losses on Loans (“ACL”) - Amount of Loans Receivable Held-for-Investment and Related Allowances Per Loan Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 37,607	$ 28,707
Charge-offs	(2,432)	(470)
Recoveries	43	380
Provisions (credit)	(2,374)	8,183
Ending balance	43,197	36,800
Originated Loans Net
Ending balance: individually evaluated for impairment	77		$ 73
Ending balance: collectively evaluated for impairment	43,120		37,534
Loans held-for-investment, net	3,933,015		3,823,238
Ending balance: individually evaluated for impairment	12,684		13,242
Ending balance: collectively evaluated for impairment	3,752,457
PPP loans not evaluated for impairment	167,874		126,535
Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	10,353
Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	47,960
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	36,726	27,918
Charge-offs	(21)	(470)
Recoveries	43	380
Provisions (credit)	(2,374)	8,183
Ending balance	37,915	36,011
Originated Loans Net
Ending balance: individually evaluated for impairment	77		73
Ending balance: collectively evaluated for impairment	37,838		36,653
Loans held-for-investment, net	3,914,970		3,804,720
Ending balance: individually evaluated for impairment	12,684		13,242
Ending balance: collectively evaluated for impairment	3,734,412
PPP loans not evaluated for impairment	167,874		126,535
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
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
PCD/PCI loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	881	789
Charge-offs	(2,411)	0
Recoveries	0	0
Provisions (credit)	0	0
Ending balance	5,282	789
Originated Loans Net
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	5,282		881
Loans held-for-investment, net	18,045		18,518
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	18,045		18,518
PPP loans not evaluated for impairment	0		0
PCD/PCI loans | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	6,812
PCD/PCI loans | Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	7,693
Real estate loans: | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Originated Loans Net
Loans held-for-investment, net	3,678,794		3,610,210
Real estate loans: | Commercial and multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	33,005
Charge-offs	(21)
Recoveries	19
Provisions (credit)	(2,172)
Ending balance	28,882
Originated Loans Net
Ending balance: individually evaluated for impairment	69
Ending balance: collectively evaluated for impairment	28,813
Loans held-for-investment, net	3,305,522
Ending balance: individually evaluated for impairment	9,839
Ending balance: collectively evaluated for impairment	3,295,683
PPP loans not evaluated for impairment	0
Real estate loans: | Commercial and multifamily | 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	(1,949)
Real estate loans: | Commercial and multifamily | 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	31,056
Real estate loans: | Commercial mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		4,891
Charge-offs		(433)
Recoveries		375
Provisions (credit)		611
Ending balance		5,444
Originated Loans Net
Ending balance: individually evaluated for impairment			66
Ending balance: collectively evaluated for impairment			5,944
Loans held-for-investment, net	734,113		717,566
Ending balance: individually evaluated for impairment			10,650
Ending balance: collectively evaluated for impairment			706,916
PPP loans not evaluated for impairment			0
Real estate loans: | Multifamily | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		20,203
Charge-offs		0
Recoveries		0
Provisions (credit)		6,686
Ending balance		26,889
Originated Loans Net
Ending balance: individually evaluated for impairment			0
Ending balance: collectively evaluated for impairment			26,995
Loans held-for-investment, net	2,571,409		2,512,934
Ending balance: individually evaluated for impairment			626
Ending balance: collectively evaluated for impairment			2,512,308
PPP loans not evaluated for impairment			0
Real estate loans: | One-to-four family residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	207	180
Charge-offs	0	0
Recoveries	1	1
Provisions (credit)	(269)	131
Ending balance	5,172	312
Originated Loans Net
Ending balance: individually evaluated for impairment	4		0
Ending balance: collectively evaluated for impairment	5,168		207
Loans held-for-investment, net	202,948		212,222
Ending balance: individually evaluated for impairment	1,634		1,903
Ending balance: collectively evaluated for impairment	201,314		210,319
PPP loans not evaluated for impairment	0		0
Real estate loans: | One-to-four family residential mortgage | 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	5,233
Real estate loans: | One-to-four family residential mortgage | 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	5,440
Real estate loans: | Construction and land | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,214	536
Charge-offs	0	0
Recoveries	0	0
Provisions (credit)	(24)	135
Ending balance	269	671
Originated Loans Net
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	269		1,214
Loans held-for-investment, net	77,206		74,351
Ending balance: individually evaluated for impairment	1,150		0
Ending balance: collectively evaluated for impairment	76,056		74,351
PPP loans not evaluated for impairment	0		0
Real estate loans: | Construction and land | 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	(921)
Real estate loans: | Construction and land | 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	293
Real estate loans: | Home equity and lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	260	317
Charge-offs	0	0
Recoveries	0	1
Provisions (credit)	(36)	256
Ending balance	643	574
Originated Loans Net
Ending balance: individually evaluated for impairment	2		3
Ending balance: collectively evaluated for impairment	641		257
Loans held-for-investment, net	93,118		93,137
Ending balance: individually evaluated for impairment	45		47
Ending balance: collectively evaluated for impairment	93,073		93,090
PPP loans not evaluated for impairment	0		0
Real estate loans: | Home equity and lines of credit | 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	419
Real estate loans: | Home equity and lines of credit | 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	679
Commercial and industrial loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,842	1,640
Charge-offs	0	(37)
Recoveries	21	2
Provisions (credit)	130	430
Ending balance	2,940	2,035
Originated Loans Net
Ending balance: individually evaluated for impairment	2		4
Ending balance: collectively evaluated for impairment	2,938		1,838
Loans held-for-investment, net	234,518		191,481
Ending balance: individually evaluated for impairment	16
Ending balance: collectively evaluated for impairment	66,628
PPP loans not evaluated for impairment	167,874		126,535
Commercial and industrial loans | 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	947
Commercial and industrial loans | 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	2,789
Other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	198	151
Charge-offs	0	0
Recoveries	2	1
Provisions (credit)	(3)	(66)
Ending balance	9	$ 86
Originated Loans Net
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	9		198
Loans held-for-investment, net	1,658		3,029
Ending balance: individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	1,658		3,029
PPP loans not evaluated for impairment	0		$ 0
Other loans | 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	(188)
Other loans | 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	$ 10

Deposits - Deposit Account Bala

Deposits - Deposit Account Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Non-interest-bearing checking	$ 771,432	$ 695,831
NOW and interest-bearing checking	918,367	905,208
Savings and money market	1,815,727	1,953,885
Certificates of deposit	630,190	521,627
Total deposits	$ 4,135,716	$ 4,076,551

Deposits - Interest Expense On

Deposits - Interest Expense On Deposits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Deposits [Abstract]
NOW and interest-bearing checking, savings, and money market	$ 932	$ 4,073
Certificates of deposit	938	5,206
Total interest expense on deposit accounts	$ 1,870	$ 9,279

Equity Incentive Plans - Stock

Equity Incentive Plans - Stock Options Outstanding (Details) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Number of Stock Options
Beginning Balance (shares)	2,214,193
Forfeited (shares)	(41,090)
Exercised (shares)	(54,990)
Ending Balance (shares)	2,118,113	2,214,193
Exercisable (shares)	2,101,034
Weighted Average Grant Date Fair Value
Beginning Balance (usd per share)	$ 4.01
Forfeited (usd per share)	3.96
Exercised (usd per share)	4.06
Ending Balance (usd per share)	4.01	$ 4.01
Exercisable (usd per share)	4
Weighted Average Exercise Price
Beginning Balance (usd per share)	13.94
Forfeited (usd per share)	13.62
Exercised (usd per share)	14.69
Ending Balance (usd per share)	13.92	$ 13.94
Exercisable (usd per share)	$ 13.91
Weighted Average Contractual Life (years)
Outstanding	3 years 8 months 15 days	3 years 11 months 15 days
Exercisable	3 years 8 months 12 days

Equity Incentive Plans - Narrat

Equity Incentive Plans - Narrative (Details) - USD ($)	Jan. 29, 2021	Mar. 31, 2021	Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)		176,930
Allocated share-based compensation expense		$ 243,000	$ 448,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future stock-based compensation expense		$ 25,000
Average period of expected future stock option expense		7 months 6 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future stock-based compensation expense		$ 2,600,000
Average period of expected future stock option expense		3 years 3 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)	147,315
Grant date value	$ 1,800,000
Two Thousand Nineteen Equity Incentive Plan | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	29,615
Grant date value	$ 366,041
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)	32,769
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)	114,546
Award vesting period	5 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	225.00%

Equity Incentive Plans - Status

Equity Incentive Plans - Status of the Company's Restricted Share Awards (Details)	3 Months Ended
	Mar. 31, 2021$ / sharesshares
Number of Shares Awarded
Beginning Balance (shares) | shares	104,010
Granted (shares) | shares	176,930
Vested (shares) | shares	(38,470)
Forfeited (shares) | shares	(4,022)
Ending Balance (shares) | shares	238,448
Weighted Average Grant Date Fair Value
Beginning Balance (in dollars per share) | $ / shares	$ 15.91
Granted (in dollars per share) | $ / shares	12.59
Vested (in dollars per share) | $ / shares	15.81
Forfeited (in dollars per share) | $ / shares	15.81
Ending Balance (in dollars per share) | $ / shares	$ 13.46

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	$ 1,207,238	$ 1,264,805
Trading securities	12,142	12,291
Individually evaluated loans	4,466	5,325
Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	1,207,238	1,264,805
Trading securities	12,142	12,291
Equity securities	473	253
Total	1,219,853	1,277,349
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	2,690	3,158
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	1,079,256	1,172,312
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	253,563	281,343
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	825,693	890,965
Measured on a recurring basis | Non-GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale		4
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	103	123
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	124,442	88,418
Measured on a recurring basis | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	747	794
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	125,292	89,335
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	12,142	12,291
Equity securities	473	253
Total	12,615	12,544
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) | Non-GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale		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) | Asset-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) | 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	1,207,238	1,264,805
Trading securities	0	0
Equity securities	0	0
Total	1,207,238	1,264,805
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	2,690	3,158
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	1,079,256	1,172,312
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	253,563	281,343
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	825,693	890,965
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Non-GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale		4
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	103	123
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	124,442	88,418
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	747	794
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	125,292	89,335
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) | Non-GSE
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale		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) | Asset-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) | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	4,566	5,325
Measured on a non-recurring basis | Real estate loans:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	4,452	5,312
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	3,871	5,268
Measured on a non-recurring basis | Real estate loans: | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	12	16
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	29	28
Measured on a non-recurring basis | Real estate loans: | One-to-Four Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	540
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	14	13
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
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans: | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans: | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	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
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
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real estate loans:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real estate loans: | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real estate loans: | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0	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
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
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	4,566	5,325
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	4,452	5,312
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	3,871	5,268
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans: | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	12	16
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	29	28
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real estate loans: | One-to-Four Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	540
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	14	$ 13
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

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, 2021USD ($)	Dec. 31, 2020USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans	$ 4,466	$ 5,325
Other real estate owned	$ 100	$ 0
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
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	0.0625	0.0625

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Impaired loans held-for-investment and held-for-sale with outstanding principal balances	$ 6,500		$ 7,400
Estimated fair value of impaired loans held-for-investment and held-for-sale	4,500		$ 5,300
Increase (decrease) in net impairment charges	3	$ (79)
Net recoveries (charge offs)	2,400	90
Assets acquired through foreclosure	$ 100	$ 0

Fair Value Measurements - Estim

Fair Value Measurements - Estimated Fair Values of the Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financial assets:
Trading securities	$ 12,142	$ 12,291
Debt securities available-for-sale	1,207,238	1,264,805
Debt securities held-to-maturity	7,241	7,574
Loans held-for-sale		19,895
Carrying Value
Financial assets:
Cash and cash equivalents	127,570	87,544
Trading securities	12,142	12,291
Debt securities available-for-sale	1,207,238	1,264,805
Debt securities held-to-maturity	6,913	7,234
Equity securities	473	253
FHLBNY stock, at cost	28,641	28,641
Loans held-for-sale		19,895
Net loans held-for-investment	3,889,818	3,785,631
Derivative assets	1,219	1,498
Financial liabilities:
Deposits	4,135,716	4,076,551
Borrowed funds	592,170	591,789
Advance payments by borrowers for taxes and insurance	24,027	19,677
Derivative liabilities	1,220	1,502
Estimated Fair Value
Financial assets:
Cash and cash equivalents	127,570	87,544
Trading securities	12,142	12,291
Debt securities available-for-sale	1,207,238	1,264,805
Debt securities held-to-maturity	7,241	7,574
Equity securities	473	253
FHLBNY stock, at cost	28,641	28,641
Net loans held-for-investment	3,959,088	3,842,054
Derivative assets	1,219	1,498
Financial liabilities:
Deposits	4,140,621	4,082,538
Borrowed funds	604,460	609,900
Advance payments by borrowers for taxes and insurance	24,027	19,677
Derivative liabilities	1,220	1,502
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	127,570	87,544
Trading securities	12,142	12,291
Debt securities available-for-sale	0	0
Debt securities held-to-maturity	0	0
Equity securities	473	253
FHLBNY stock, at cost	0	0
Loans held-for-sale		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	1,207,238	1,264,805
Debt securities held-to-maturity	7,241	7,574
Equity securities	0	0
FHLBNY stock, at cost	28,641	28,641
Loans held-for-sale		0
Net loans held-for-investment	0	0
Derivative assets	1,219	1,498
Financial liabilities:
Deposits	4,140,621	4,082,538
Borrowed funds	604,460	609,900
Advance payments by borrowers for taxes and insurance	24,027	19,677
Derivative liabilities	1,220	1,502
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
Loans held-for-sale		19,895
Net loans held-for-investment	3,959,088	3,842,054
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, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 18,677	$ 4,551
Weighted average shares outstanding-basic (shares)	49,528,419	46,791,768
Effect of non-vested restricted stock and stock options outstanding (shares)	105,225	191,698
Weighted average shares outstanding-diluted (shares)	49,633,644	46,983,466
Earnings per share-basic (usd per share)	$ 0.38	$ 0.10
Earnings per share-diluted (usd per share)	$ 0.38	$ 0.10
Anti-dilutive shares (shares)	1,002,377	1,001,828

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 35,662	$ 36,741
Operating lease liabilities	$ 42,067	$ 42,734
Minimum
Lessee, Lease, Description [Line Items]
Renewal term	5 years
Maximum
Lessee, Lease, Description [Line Items]
Term of lease	34 years 3 months 18 days
Renewal term	10 years

Leases - Supplemental Lease Inf

Leases - Supplemental Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Operating lease cost	$ 1,455	$ 1,439
Variable lease cost	1,235	544
Net lease cost	2,690	1,983
Cash paid for amounts included in measurement of operating lease liabilities	1,708	1,545
Right-of-use assets obtained in exchange for new lease liabilities	$ 0	$ 3,028
Weighted average remaining lease term	12 years 3 months 3 days	12 years 8 months 15 days
Weighted average discount rate	3.60%	3.59%

Leases - Lease Payments Obligat

Leases - Lease Payments Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Leases [Abstract]
2021	$ 4,669
2022	5,550
2023	5,504
2024	5,067
2025	4,710
Thereafter	28,196
Total lease payments	53,696
Less: imputed interest	11,629
Present value of lease liabilities	$ 42,067	$ 42,734

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	$ 1,197	$ 1,120
Income on bank-owned life insurance	848	876
Gains (losses) on available-for-sale debt securities, net	97	(13)
Gains (losses) on trading securities, net	364	(1,992)
Swap income	0	76
Other	130	41
Total non-interest income	2,636	108
Service charges
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	720	753
ATM and card interchange fees
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	399	304
Investment fees
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	$ 78	$ 63

Derivatives - Additional Inform

Derivatives - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)instrument	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)instrument
Derivative [Line Items]
Swap income	$ 0	$ 76
Interest Rate Swap
Derivative [Line Items]
Number of derivative instruments held | instrument	7		7
Derivative, notional amount	$ 38,900		$ 39,200

Derivatives - Fair Value of Der

Derivatives - Fair Value of Derivatives (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Other assets
Derivative [Line Items]
Fair value of derivative asset	$ 1,219	$ 1,498
Other liabilities
Derivative [Line Items]
Fair value of derivative liability	$ 1,220	$ 1,502

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements Adopted (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	$ 37,607	$ 43,197	$ 36,800	$ 28,707
Unfounded credit commitment	808	$ 1,702
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Increase in allowance for credit losses	11,100
Allowance for credit loss	10,353
Unfounded credit commitment	737
PCD loan related reserves	6,800
Non-PCD loan related reserves	$ 4,300