Northfield Bancorp, Inc. (NFBK) 10-Q 9 Nov 20 2020 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2020	Oct. 31, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-35791
Entity Registrant Name	Northfield Bancorp, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	80-0882592
Entity Address, Address Line One	581 Main Street,
Entity Address, City or Town	Woodbridge,
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07095
City Area Code	732
Local Phone Number	499-7200
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	NFBK
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (shares)		53,122,550
Entity Central Index Key	0001493225
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
ASSETS:
Cash and due from banks	$ 18,273	$ 15,409
Interest-bearing deposits in other financial institutions	332,566	132,409
Total cash and cash equivalents	350,839	147,818
Trading securities	10,993	11,222
Debt securities available-for-sale, at estimated fair value	1,171,430	1,138,352
Debt securities held-to-maturity, at amortized cost, (estimated fair value of $8,475 at September 30, 2020, and $8,886 at December 31, 2019)	8,106	8,762
Equity securities	4,502	3,341
Originated loans held-for-investment, net	3,215,509	2,987,067
Loans acquired	497,640	432,653
Purchased credit-impaired (“PCI”) loans held-for-investment	18,468	17,365
Loans held-for-investment, net	3,731,617	3,437,085
Allowance for loan losses	(38,716)	(28,707)
Net loans held-for-investment	3,692,901	3,408,378
Accrued interest receivable	14,061	14,609
Bank owned life insurance	161,806	153,459
Federal Home Loan Bank of New York stock, at cost	29,766	39,575
Premises and equipment, net	27,980	25,659
Goodwill	41,594	38,411
Operating lease right-of-use assets	43,600	39,504
Other assets	31,262	26,212
Total assets	5,588,840	5,055,302
LIABILITIES:
Deposits	4,121,164	3,408,233
Securities sold under agreements to repurchase	75,000	75,000
Other borrowings	541,905	782,004
Operating lease liabilities	48,090	44,069
Advance payments by borrowers for taxes and insurance	17,329	20,045
Accrued expenses and other liabilities	27,954	30,098
Total liabilities	4,831,442	4,359,449
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, 64,796,453 shares issued at September 30, 2020 and December 31, 2019, 53,124,898 and 49,175,347 outstanding at September 30, 2020, and December 31, 2019, respectively	648	609
Additional paid-in-capital	590,316	548,486
Unallocated common stock held by employee stock ownership plan	(18,993)	(19,740)
Retained earnings	330,602	322,581
Accumulated other comprehensive income	14,407	4,699
Treasury stock at cost: 11,671,555 and 11,758,360 shares at September 30, 2020, and December 31, 2019, respectively	(159,582)	(160,782)
Total stockholders’ equity	757,398	695,853
Total liabilities and stockholders’ equity	$ 5,588,840	$ 5,055,302

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Debt securities held-to-maturity	$ 8,475	$ 8,886
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)	64,796,453	64,796,453
Common stock, shares outstanding (shares)	53,124,898	49,175,347
Treasury stock, shares (shares)	11,671,555	11,758,360

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest income:
Loans	$ 37,025	$ 35,285	$ 107,705	$ 101,183
Mortgage-backed securities	3,422	5,409	13,348	14,082
Other securities	541	1,511	2,342	5,075
Federal Home Loan Bank of New York dividends	410	396	1,443	1,138
Deposits in other financial institutions	59	246	262	1,028
Total interest income	41,457	42,847	125,100	122,506
Interest expense:
Deposits	5,643	10,516	22,395	31,312
Borrowings	3,206	3,511	9,934	7,885
Total interest expense	8,849	14,027	32,329	39,197
Net interest income	32,608	28,820	92,771	83,309
Provision (credit) for loan losses	165	(1,300)	10,269	(750)
Net interest income after provision for loan losses	32,443	30,120	82,502	84,059
Non-interest income:
Fees and service charges for customer services	1,009	1,286	2,795	3,633
Income on bank owned life insurance	894	3,268	2,635	5,071
Gains on available-for-sale debt securities, net	45	123	105	337
Gains on trading securities, net	763	28	397	1,457
Gains on sale of loans	0	0	665	0
Other	311	28	772	115
Total non-interest income	3,022	4,733	7,369	10,613
Non-interest expense:
Compensation and employee benefits	13,306	9,033	31,039	29,890
Occupancy	3,540	3,084	9,618	9,486
Furniture and equipment	425	280	1,107	804
Data processing	3,058	1,517	6,130	4,217
Professional fees	1,216	938	3,370	2,496
Advertising	424	746	1,585	2,841
FDIC insurance	360	5	576	537
Other	1,459	1,266	3,901	4,552
Total non-interest expense	23,788	16,869	57,326	54,823
Income before income tax expense	11,677	17,984	32,545	39,849
Income tax expense	3,095	4,845	8,619	9,735
Net income	$ 8,582	$ 13,139	$ 23,926	$ 30,114
Net income per common share:
Basic (usd per share)	$ 0.17	$ 0.28	$ 0.50	$ 0.64
Diluted (usd per share)	$ 0.17	$ 0.28	$ 0.50	$ 0.64
Unrealized gains on debt securities available-for-sale:
Net unrealized holding (losses) gains	$ (328)	$ 1,549	$ 13,585	$ 20,242
Less: reclassification adjustment for net gains included in net income	(45)	(123)	(105)	(337)
Net unrealized (losses) gains	(373)	1,426	13,480	19,905
Income tax benefit (expense) related to net unrealized holding (losses) gains on debt securities available-for-sale	92	(434)	(3,802)	(5,666)
Income tax expense related to reclassification adjustment for gains included in net income	13	34	30	94
Other comprehensive (loss) income, net of tax	(268)	1,026	9,708	14,333
Comprehensive income	$ 8,314	$ 14,165	$ 33,634	$ 44,447

Consolidated Statements of Chan

Consolidated Statements of Changes In Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Unallocated Common Stock Held by the Employee Stock Ownership Plan	Retained Earnings	Accumulated Other Comprehensive Income (loss) Net of tax	Treasury Stock
Beginning Balance (shares) at Dec. 31, 2018		49,635,673
Beginning Balance at Dec. 31, 2018	$ 666,439	$ 609	$ 546,219	$ (20,992)	$ 302,544	$ (9,147)	$ (152,794)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	30,114				30,114
Other comprehensive income (loss), net of tax	14,333					14,333
ESOP shares allocated or committed to be released	1,379		623	756
Stock compensation expense	2,865		2,865
Forfeitures of restricted stock (in shares)		(8,000)
Forfeitures of restricted stock	0		118				(118)
Exercise of stock options, net (shares)		555,805
Exercise of stock options, net	5,575		(1,990)				7,565
Cash dividends declared and paid	(15,066)				(15,066)
Repurchase of treasury stock (in shares)		(1,028,600)
Repurchase of treasury stock	(15,699)						(15,699)
Ending Balance (shares) at Sep. 30, 2019		49,154,878
Ending Balance at Sep. 30, 2019	689,940	$ 609	547,835	(20,236)	317,592	5,186	(161,046)
Beginning Balance (shares) at Jun. 30, 2019		49,112,139
Beginning Balance at Jun. 30, 2019	681,093	$ 609	548,197	(20,491)	309,594	4,160	(160,976)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,139				13,139
Other comprehensive income (loss), net of tax	1,026					1,026
ESOP shares allocated or committed to be released	486		231	255
Stock compensation expense	425		425
Exercise of stock options, net (shares)		407,844
Exercise of stock options, net	4,546		(1,018)				5,564
Cash dividends declared and paid	(5,141)				(5,141)
Repurchase of treasury stock (in shares)		(365,105)
Repurchase of treasury stock	(5,634)						(5,634)
Ending Balance (shares) at Sep. 30, 2019		49,154,878
Ending Balance at Sep. 30, 2019	689,940	$ 609	547,835	(20,236)	317,592	5,186	(161,046)
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	23,926				23,926
Other comprehensive income (loss), net of tax	9,708					9,708
ESOP shares allocated or committed to be released	1,074		327	747
Stock compensation expense	1,227		1,227
Issuance of restricted stock (in shares)		83,744
Issuance of restricted stock	0		(1,145)				1,145
Forfeitures of restricted stock (in shares)		(1,225)
Forfeitures of restricted stock			17				(17)
Exercise of stock options, net (shares)	13,000	13,000
Exercise of stock options, net	$ 175		(4)				179
Cash dividends declared and paid	(15,905)				(15,905)
Repurchase of treasury stock (in shares)		(8,714)
Repurchase of treasury stock	(107)						(107)
Issuance of stock VSB Bancorp, Inc. acquisition (in shares)		3,862,746
Issuance of stock for VSB Bancorp, Inc. acquisition	41,447	$ 39	41,408
Ending Balance (shares) at Sep. 30, 2020		53,124,898
Ending Balance at Sep. 30, 2020	757,398	$ 648	590,316	(18,993)	330,602	14,407	(159,582)
Beginning Balance (shares) at Jun. 30, 2020		49,263,377
Beginning Balance at Jun. 30, 2020	712,576	$ 609	548,495	(19,244)	327,606	14,675	(159,565)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,582				8,582
Other comprehensive income (loss), net of tax	(268)					(268)
ESOP shares allocated or committed to be released	301		50	251
Stock compensation expense	346		346
Forfeitures of restricted stock (in shares)		(1,225)
Forfeitures of restricted stock	0		17				(17)
Cash dividends declared and paid	(5,586)				(5,586)
Issuance of stock VSB Bancorp, Inc. acquisition (in shares)		3,862,746
Issuance of stock for VSB Bancorp, Inc. acquisition	41,447	$ 39	41,408
Ending Balance (shares) at Sep. 30, 2020		53,124,898
Ending Balance at Sep. 30, 2020	$ 757,398	$ 648	$ 590,316	$ (18,993)	$ 330,602	$ 14,407	$ (159,582)

Consolidated Statements of Ch_2

Consolidated Statements of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (usd per share)	$ 0.11	$ 0.11	$ 0.33	$ 0.33
Dividends paid per share (usd per share)	$ 0.11	0.11	0.33	0.33
Treasury stock repurchased cost per share (usd per share)		$ 15.31	$ 12.24	$ 15.23

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Statement of Cash Flows [Abstract]
Net income	$ 23,926	$ 30,114
Adjustments to reconcile net income to net cash provided by operating activities:
Provision (credit) for loan losses	10,269	(750)
ESOP and stock compensation expense	2,301	4,244
Depreciation	2,603	2,316
Amortization of premiums, and deferred loan costs, net of (accretion) of discounts, and deferred loan fees	3,450	3,118
Amortization of intangible assets	165	201
Amortization of operating lease right-of-use assets	3,665	3,345
Income on bank owned life insurance	(2,635)	(5,071)
Net gain on sale of loans held-for-sale	(665)	0
Proceeds from sale of loans held-for-sale	48,165	0
Origination of loans held-for-sale	(47,500)	0
Gains on available-for-sale debt securities, net	(105)	(337)
Gains on trading securities, net	(397)	(1,457)
Net sales of trading securities	626	50
Decrease (increase) in accrued interest receivable	1,963	(859)
(Increase) decrease in other assets	(6,632)	1,633
Decrease in accrued expenses and other liabilities	(9,117)	(2,630)
Net cash provided by operating activities	30,082	33,917
Cash flows from investing activities:
Net increase in loans receivable	(114,884)	(64,950)
Purchases of loans	0	(44,918)
Purchases of Federal Home Loan Bank of New York stock	(10,497)	(25,901)
Redemptions of Federal Home Loan Bank of New York stock	20,610	16,313
Purchases of debt securities available-for-sale	(302,378)	(456,535)
Purchases of equity securities	(4,276)	(1,008)
Principal payments and maturities on debt securities available-for-sale	389,799	168,931
Principal payments and maturities on debt securities held-to-maturity	627	658
Proceeds from sale of debt securities available-for-sale	17,121	54,438
Proceeds from sale of equity securities	3,115	0
Proceeds from bank owned life insurance	2,716	5,002
Purchases and improvements of premises and equipment	(1,576)	(2,678)
Net cash acquired in business combination	72,875	0
Net cash provided by (used in) investing activities	73,252	(350,648)
Cash flows from financing activities:
Net increase in deposits	358,339	50,797
Dividends paid	(15,905)	(15,066)
Exercise of stock options	175	5,575
Purchase of treasury stock	(107)	(15,699)
(Decrease) increase in advance payments by borrowers for taxes and insurance	(2,716)	744
Repayments under capital lease obligations	0	(44)
Proceeds from securities sold under agreements to repurchase and other borrowings	370,901	685,816
Repayments related to securities sold under agreements to repurchase and other borrowings	(611,000)	(403,502)
Net cash provided by financing activities	99,687	308,621
Net (increase) decrease in cash and cash equivalents	203,021	(8,110)
Cash and cash equivalents at beginning of period	147,818	77,762
Cash and cash equivalents at end of period	350,839	69,652
Cash paid during the period for:
Interest	33,468	39,588
Income taxes	11,910	6,973
Non-cash transactions:
Loan charge-offs (recoveries), net	260	(1,319)
Initial recognition of operating lease right-of use assets	0	43,560
Initial recognition of operating lease liabilities	0	47,328
Right-of-use assets obtained in exchange for new operating lease liabilities	3,028	1,013
Transfer of originated loans held-for-investment to loans held-for-sale at fair value	47,500	0
Non-cash assets acquired, at fair value:
Debt securities available for sale	126,931	0
Loans	180,431	0
Accrued interest receivable	1,415	0
Bank-owned life insurance	5,714	0
Premises and equipment	7,789	0
Goodwill	3,183	0
Other assets	4,702	0
Total non-cash assets acquired	330,165	0
Non-cash liabilities assumed at fair value:
Deposits	354,592	0
Other liabilities	7,001	0
Total non-cash liabilities assumed	361,593	0
Net non-cash liabilities assumed	(31,428)	0
Net cash and cash equivalents acquired	72,875	0
Common stock issued in acquisition	$ 41,447	$ 0

Consolidated Financial Statemen

Consolidated Financial Statements	9 Months Ended
	Sep. 30, 2020
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 and nine months ended September 30, 2020 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2020 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-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, 2019, as filed with the SEC. COVID-19 On March 13, 2020, the Coronavirus Disease (COVID-19) pandemic was declared a national emergency by the President of 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 difficult time and has adapted to the changing environment. The Company has implemented temporary relief assistance to customers, including the consideration of various loan payment deferral and fee waiver options. The bank branches are currently fully open with additional health, social distancing, and limited capacity measures put in place to meet safety requirements. We continue to provide secure and efficient remote work options for our 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 Federal Reserve Board (“FRB”) and other federal banking agencies have implemented or may implement. Under the CARES Act, financial institutions are permitted to delay the adoption of the Financial Accounting Standards Board's (“FASB”) Accounting Standard Update (“ASU”) No. 2016-13, Financial Instruments - Credit Losses (Topic 326) (“CECL”) until the earlier of the termination date of the national emergency declaration or December 31, 2020. The Company has elected to defer the adoption of CECL, with an effective retrospective implementation date of January 1, 2020. The CARES Act also includes a provision that permits a financial institution to elect to suspend temporarily troubled debt restructuring (“TDR”) accounting under ASC Subtopic 310-40. 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 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. The Company implemented a short-term loan modification program in late March 2020 to provide temporary payment relief to borrowers impacted by COVID-19. The program allows for a deferral of payments typically for 90 days, which may be extended for an additional 90 days, for a maximum of 180 days on a cumulative basis. 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 September 30, 2020, the Company had originated over 1,000 PPP loans to new and existing customers, totaling approximately $118.5 million, with an additional 395 PPP loans totaling approximately $30.0 million acquired as part of our acquisition of VSB Bancorp, Inc. on July 1, 2020. PPP provides for lender processing fees that range from 1% to 5% of the final disbursement made to individual borrowers. As of September 30, 2020, we have received loan processing fees of $5.3 million, of which $818,000 has been recognized in earnings through September 30, 2020, and the remainder will be recognized in earnings over the remaining life 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 September 30, 2020, 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. While the Company has not incurred any significant disruption to its business activities as a result of COVID-19, the full impact of the pandemic is unknown and rapidly evolving. The outbreak is having a significant adverse impact on certain industries the Company serves, including retail, accommodations, and restaurants and food services. While most states have re-opened, it is under limited capacities and under other social-distancing restrictions, which has resulted in lower commercial activity and consumer spending. This decrease in commercial activity may result in our customers' inability to meet their loan obligations to us. In addition, the economic pressures and uncertainties related to the COVID-19 pandemic have resulted in changes in consumer spending behaviors, which may negatively impact the demand for loans and other services we offer. Because of the significant uncertainties related to the ultimate duration of the COVID-19 pandemic and its effects on our customers and prospects, and on the local and national economy, there can be no assurances as to how the crisis may ultimately affect the Company's loan portfolio, and business as a whole. The extent of such impact will depend on future developments, which are highly uncertain, including when the coronavirus can be controlled and abated and whether the gradual reopening of businesses will result in a meaningful increase in economic activity. As such, the Company could be subject to certain risks, any of which could have a material, adverse effect on our business, financial condition, liquidity, and results of operations.

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2020
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 $403.0 million to total assets, including $180.4 million to loans, and $354.6 million to deposits, and six branch offices in Staten Island, New York. Under the terms of the merger agreement, each share of Victory common stock was exchanged for 2.0463 shares of Northfield common stock with fractional shares paid out in cash. The transaction was accounted for under the acquisition method of accounting. Under this method of accounting, the purchase price has been allocated to the respective assets acquired and liabilities assumed based upon their estimated fair values, net of tax, as of July 1, 2020, and results of operations have been included in the Company's consolidated statements of income from that date forward. The excess of consideration paid over the fair value of the net assets acquired has been recorded as goodwill. Direct costs related to the acquisition were expensed as incurred. During the three and nine months ended September 30, 2020, the Company incurred $3.9 million and $4.3 million, respectively, of merger-related expenses, pre-tax, which are included in non-interest expense in the Company's consolidated statements of income. The following table summarizes the estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition for Victory (in thousands): At July 1, 2020 Fair Value Total Purchase Price $ 41,447 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 $ 3,183 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 01, 2020 Contractually required principal and interest $ 7,557 Contractual cash flows not expected to be collected (non-accretable discount) 3,213 Expected cash flows to be collected at acquisition 4,344 Interest component of expected cash flows (accretable yield) (572) Fair value of acquired loans $ 3,772

Debt Securities Available-for-S

Debt Securities Available-for-Sale	9 Months Ended
	Sep. 30, 2020
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 September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government Agency Securities $ 3,168 $ 2 $ — $ 3,170 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises (GSE) 300,937 11,297 183 312,051 Real estate mortgage investment conduits (REMICs): GSE 746,540 7,685 270 753,955 Non-GSE 6 — — 6 1,047,483 18,982 453 1,066,012 Other debt securities: Municipal bonds 228 1 — 229 Corporate bonds 99,855 1,337 17 101,175 Asset-backed securities 834 10 — 844 100,917 1,348 17 102,248 Total debt securities available-for-sale $ 1,151,568 $ 20,332 $ 470 $ 1,171,430 December 31, 2019 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: GSE $ 324,080 $ 6,081 $ 754 $ 329,407 REMICs: GSE 643,816 2,076 2,225 643,667 Non-GSE 53 — — 53 967,949 8,157 2,979 973,127 Other debt securities: Municipal bonds 296 3 — 299 Corporate bonds 163,725 1,214 13 164,926 164,021 1,217 13 165,225 Total debt securities available-for-sale $ 1,131,970 $ 9,374 $ 2,992 $ 1,138,352 The following is a summary of the expected maturity distribution of debt securities available-for-sale, other than mortgage-backed securities, at September 30, 2020 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 37,140 $ 37,313 Due after one year through five years 62,943 64,091 Due after five years through ten years 3,168 3,170 Due after ten years 834 844 $ 104,085 $ 105,418 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 September 30, 2020, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $537.0 million. For the three months ended September 30, 2020, the Company had gross proceeds of $4.5 million on sales and calls of debt securities available-for-sale, with gross realized gains of $48,000 related to sales of securities and gross realized losses of $3,000 related to calls of securities. For the nine months ended September 30, 2020, the Company had gross proceeds of $17.1 million on sales and calls of debt securities available-for-sale, with gross realized gains of $122,000 related to sales of securities and gross realized losses of $17,000 related to calls of securities. For the three and nine months ended September 30, 2019, the Company had gross proceeds of $20.0 million and $54.4 million, respectively, on sales of debt securities available-for-sale, with gross realized gains of $123,000 and $337,000, respectively, and no gross realized losses. The Company recognized net gains of $763,000 and $397,000 on its trading securities portfolio during the three and nine months ended September 30, 2020, respectively, and net gains of $28,000 and $1.5 million, during the three and nine months ended September 30, 2019, respectively. 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 September 30, 2020, and December 31, 2019, were as follows (in thousands): September 30, 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 Mortgage-backed securities: Pass-through certificates: GSE $ 172 $ 33,945 $ 11 $ 428 $ 183 $ 34,373 REMICs: GSE 268 79,194 2 2,326 270 81,520 Other debt securities: Corporate bonds 17 4,267 — — 17 4,267 Total $ 457 $ 117,406 $ 13 $ 2,754 $ 470 $ 120,160 December 31, 2019 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value Mortgage-backed securities: Pass-through certificates: GSE $ 25 $ 3,404 $ 729 $ 55,184 $ 754 $ 58,588 REMICs: GSE 950 197,634 1,275 54,555 2,225 252,189 Non-GSE — — — 53 — 53 Other debt securities: Corporate bonds — — 13 15,586 13 15,586 Total $ 975 $ 201,038 $ 2,017 $ 125,378 $ 2,992 $ 326,416 The Company held 11 pass-through mortgage-backed securities issued or guaranteed by GSEs and one REMIC mortgage-backed security issued or guaranteed by GSEs that were in a continuous unrealized loss position of twelve months or greater at September 30, 2020. There were 19 pass-through mortgage-backed securities issued or guaranteed by GSEs, 57 REMIC mortgage-backed securities issued or guaranteed by GSEs, and one corporate bond that were in an unrealized loss position of less than twelve months at September 30, 2020. All securities referred to above were rated investment grade at September 30, 2020. Management evaluated these securities and concluded that the declines in fair value relate to the general interest rate environment and are considered temporary. The securities cannot be prepaid in a manner that would result in the Company not receiving substantially all of its amortized cost. The Company neither has an intent to sell, nor is it more likely than not that the Company will be required to sell, the securities before the recovery of their amortized cost basis or, if necessary, maturity.

Debt Securities Held-to-Maturit

Debt Securities Held-to-Maturity	9 Months Ended
	Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Debt Securities Held-to-Maturity	Debt Securities Held-to-Maturity The following is a summary of debt securities held-to-maturity at September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 8,106 $ 369 $ — $ 8,475 Total securities held-to-maturity $ 8,106 $ 369 $ — $ 8,475 December 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 8,762 $ 129 $ 5 $ 8,886 Total securities held-to-maturity $ 8,762 $ 129 $ 5 $ 8,886 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 nine months ended September 30, 2020, or September 30, 2019. At September 30, 2020, debt securities held-to-maturity with a carrying value of $6.8 million were pledged to secure borrowings and deposits. At September 30, 2020, there were no debt securities held-to-maturity in an unrealized loss position. Gross unrealized losses on mortgage-backed securities held-to-maturity, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2019, were as follows (in thousands): December 31, 2019 Less than 12 months 12 months or more Total Unrealized losses Estimated fair value Unrealized losses Estimated fair value Unrealized losses Estimated fair value Mortgage-backed securities: Pass-through certificates: GSEs $ — $ — $ 5 $ 378 $ 5 $ 378 Total securities held-to-maturity $ — $ — $ 5 $ 378 $ 5 $ 378 The fair values of our debt securities held-to-maturity could decline in the future if the underlying performance of the collateral for the collateralized mortgage obligations or other securities deteriorates and our credit enhancement levels do not provide sufficient protections to our contractual principal and interest. As a result, there is a risk that significant other-than-temporary impairments may occur in the future given the current economic environment. The Company did not recognize any other-than-temporary impairment charges in earnings on securities held-to-maturity during the three and nine months ended September 30, 2020, or September 30, 2019.

Equity Securities

Equity Securities	9 Months Ended
	Sep. 30, 2020
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 September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government Agency Securities $ 3,168 $ 2 $ — $ 3,170 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises (GSE) 300,937 11,297 183 312,051 Real estate mortgage investment conduits (REMICs): GSE 746,540 7,685 270 753,955 Non-GSE 6 — — 6 1,047,483 18,982 453 1,066,012 Other debt securities: Municipal bonds 228 1 — 229 Corporate bonds 99,855 1,337 17 101,175 Asset-backed securities 834 10 — 844 100,917 1,348 17 102,248 Total debt securities available-for-sale $ 1,151,568 $ 20,332 $ 470 $ 1,171,430 December 31, 2019 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: GSE $ 324,080 $ 6,081 $ 754 $ 329,407 REMICs: GSE 643,816 2,076 2,225 643,667 Non-GSE 53 — — 53 967,949 8,157 2,979 973,127 Other debt securities: Municipal bonds 296 3 — 299 Corporate bonds 163,725 1,214 13 164,926 164,021 1,217 13 165,225 Total debt securities available-for-sale $ 1,131,970 $ 9,374 $ 2,992 $ 1,138,352 The following is a summary of the expected maturity distribution of debt securities available-for-sale, other than mortgage-backed securities, at September 30, 2020 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 37,140 $ 37,313 Due after one year through five years 62,943 64,091 Due after five years through ten years 3,168 3,170 Due after ten years 834 844 $ 104,085 $ 105,418 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 September 30, 2020, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $537.0 million. For the three months ended September 30, 2020, the Company had gross proceeds of $4.5 million on sales and calls of debt securities available-for-sale, with gross realized gains of $48,000 related to sales of securities and gross realized losses of $3,000 related to calls of securities. For the nine months ended September 30, 2020, the Company had gross proceeds of $17.1 million on sales and calls of debt securities available-for-sale, with gross realized gains of $122,000 related to sales of securities and gross realized losses of $17,000 related to calls of securities. For the three and nine months ended September 30, 2019, the Company had gross proceeds of $20.0 million and $54.4 million, respectively, on sales of debt securities available-for-sale, with gross realized gains of $123,000 and $337,000, respectively, and no gross realized losses. The Company recognized net gains of $763,000 and $397,000 on its trading securities portfolio during the three and nine months ended September 30, 2020, respectively, and net gains of $28,000 and $1.5 million, during the three and nine months ended September 30, 2019, respectively. 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 September 30, 2020, and December 31, 2019, were as follows (in thousands): September 30, 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 Mortgage-backed securities: Pass-through certificates: GSE $ 172 $ 33,945 $ 11 $ 428 $ 183 $ 34,373 REMICs: GSE 268 79,194 2 2,326 270 81,520 Other debt securities: Corporate bonds 17 4,267 — — 17 4,267 Total $ 457 $ 117,406 $ 13 $ 2,754 $ 470 $ 120,160 December 31, 2019 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value Mortgage-backed securities: Pass-through certificates: GSE $ 25 $ 3,404 $ 729 $ 55,184 $ 754 $ 58,588 REMICs: GSE 950 197,634 1,275 54,555 2,225 252,189 Non-GSE — — — 53 — 53 Other debt securities: Corporate bonds — — 13 15,586 13 15,586 Total $ 975 $ 201,038 $ 2,017 $ 125,378 $ 2,992 $ 326,416 The Company held 11 pass-through mortgage-backed securities issued or guaranteed by GSEs and one REMIC mortgage-backed security issued or guaranteed by GSEs that were in a continuous unrealized loss position of twelve months or greater at September 30, 2020. There were 19 pass-through mortgage-backed securities issued or guaranteed by GSEs, 57 REMIC mortgage-backed securities issued or guaranteed by GSEs, and one corporate bond that were in an unrealized loss position of less than twelve months at September 30, 2020. All securities referred to above were rated investment grade at September 30, 2020. Management evaluated these securities and concluded that the declines in fair value relate to the general interest rate environment and are considered temporary. The securities cannot be prepaid in a manner that would result in the Company not receiving substantially all of its amortized cost. The Company neither has an intent to sell, nor is it more likely than not that the Company will be required to sell, the securities before the recovery of their amortized cost basis or, if necessary, maturity.

Loans

Loans	9 Months Ended
	Sep. 30, 2020
Receivables [Abstract]
Loans	Loans Net loans held-for-investment are as follows (in thousands): September 30, December 31, 2020 2019 Real estate loans: Multifamily $ 2,285,074 $ 2,196,407 Commercial mortgage 545,826 528,681 One-to-four family residential mortgage 74,912 83,742 Home equity and lines of credit 86,855 84,928 Construction and land 55,069 38,284 Total real estate loans 3,047,736 2,932,042 Commercial and industrial loans (1) 162,530 45,328 Other loans 1,770 2,083 Total commercial and industrial and other loans 164,300 47,411 Deferred loan cost, net 3,473 7,614 Originated loans held-for-investment, net 3,215,509 2,987,067 PCI Loans 18,468 17,365 Loans acquired: One-to-four family residential mortgage 146,218 187,975 Multifamily 90,927 108,417 Commercial mortgage 175,522 113,027 Home equity and lines of credit 9,690 12,008 Construction and land 23,843 2,537 Total acquired real estate loans 446,200 423,964 Commercial and industrial loans (1) 51,117 8,689 Other loans 323 — Total loans acquired, net 497,640 432,653 Loans held-for-investment, net 3,731,617 3,437,085 Allowance for loan losses (38,716) (28,707) Net loans held-for-investment $ 3,692,901 $ 3,408,378 (1) Included in originated and acquired commercial and industrial loans at September 30, 2020, are PPP loans totaling $115.2 million and $30.0 million, respectively. There were no PPP loans at December 31, 2019. There were no loans held-for-sale at September 30, 2020, or December 31, 2019. PCI loans totaled $18.5 million at September 30, 2020, as compared to $17.4 million at December 31, 2019. The majority of the PCI loan balance was attributable to those loans acquired as part of a Federal Deposit Insurance Corporation-assisted transaction. The Company accounts for PCI loans utilizing U.S. GAAP applicable to loans acquired with deteriorated credit quality. At September 30, 2020, PCI loans consisted of approximately 23% commercial real estate loans and 41% commercial and industrial loans, with the remaining balance in residential and home equity loans. At December 31, 2019, PCI loans consisted of approximately 29% commercial real estate loans and 42% commercial and industrial loans, with the remaining balance in residential and home equity loans. The following table details the accretion of interest income for PCI loans for the three and nine months ended September 30, 2020 and September 30, 2019 (in thousands): At or for the three months ended September 30, At or for the nine months ended September 30, 2020 2019 2020 2019 Balance at the beginning of period $ 15,566 $ 19,794 $ 17,086 $ 21,846 Acquisition 572 — 572 — Accretion into interest income (648) (1,059) (2,168) (3,111) Balance at end of period $ 15,490 $ 18,735 $ 15,490 $ 18,735 The following tables set forth activity in our allowance for loan losses, by loan type, as of and for the three and nine months ended September 30, 2020, and September 30, 2019 (in thousands): Three Months Ended September 30, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Beginning balance $ 6,509 $ 272 $ 937 $ 27,243 $ 558 $ 1,846 $ 176 $ 37,541 $ 789 $ 190 $ 38,520 Charge-offs (7) — — — — — — (7) — (5) (12) Recoveries 13 — — — 26 1 — 40 — 3 43 Provisions (credit) 892 (50) 198 (596) (157) (73) (47) 167 — (2) 165 Ending balance $ 7,407 $ 222 $ 1,135 $ 26,647 $ 427 $ 1,774 $ 129 $ 37,741 $ 789 $ 186 $ 38,716 Three Months Ended September 30, 2019 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Beginning balance $ 5,331 $ 234 $ 584 $ 18,384 $ 417 $ 1,591 $ 146 $ 26,687 $ 1,010 $ 135 $ 27,832 Charge-offs (514) — — — — — — (514) — — (514) Recoveries 60 — — 1,818 — 17 — 1,895 — 153 2,048 Provisions (credit) (8) (17) (192) (799) (103) (9) (19) (1,147) — (153) (1,300) Ending balance $ 4,869 $ 217 $ 392 $ 19,403 $ 314 $ 1,599 $ 127 $ 26,921 $ 1,010 $ 135 $ 28,066 Nine Months Ended September 30, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Beginning balance $ 4,756 $ 180 $ 536 $ 20,203 $ 317 $ 1,640 $ 151 $ 27,783 $ 789 $ 135 $ 28,707 Charge-offs (171) — — — — (94) — (265) — (438) (703) Recoveries 396 26 — — — 6 — 428 — 15 443 Provisions (credit) 2,426 16 599 6,444 110 222 (22) 9,795 — 474 10,269 Ending balance $ 7,407 $ 222 $ 1,135 $ 26,647 $ 427 $ 1,774 $ 129 $ 37,741 $ 789 $ 186 $ 38,716 Nine Months Ended September 30, 2019 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Beginning balance $ 5,630 $ 342 $ 463 $ 18,084 $ 291 $ 1,569 $ 108 $ 26,487 $ 1,010 $ — $ 27,497 Charge-offs (520) — — — — (83) (123) (726) — (112) (838) Recoveries 85 72 — 1,818 — 17 1 1,993 — 164 2,157 Provisions (credit) (326) (197) (71) (499) 23 96 141 (833) — 83 (750) Ending balance $ 4,869 $ 217 $ 392 $ 19,403 $ 314 $ 1,599 $ 127 $ 26,921 $ 1,010 $ 135 $ 28,066 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 September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Ending balance: individually evaluated for impairment $ 116 $ — $ — $ — $ 3 $ 3 $ — $ 122 $ — $ 186 $ 308 Ending balance: collectively evaluated for impairment $ 7,291 $ 222 $ 1,135 $ 26,647 $ 424 $ 1,771 $ 129 $ 37,619 $ 789 $ — $ 38,408 Loans, net: Ending balance $ 546,421 $ 76,361 $ 55,098 $ 2,288,402 $ 88,859 $ 158,598 $ 1,770 $ 3,215,509 $ 18,468 $ 497,640 $ 3,731,617 Ending balance: individually evaluated for impairment $ 11,523 $ 1,423 $ — $ 629 $ 49 $ 54 $ — $ 13,678 $ — $ 5,810 $ 19,488 PPP loans not evaluated for impairment (1) $ — $ — $ — $ — $ — $ 115,157 $ — $ 115,157 $ — $ 29,995 $ 145,152 Ending balance: collectively evaluated for impairment $ 534,898 $ 74,938 $ 55,098 $ 2,287,773 $ 88,810 $ 43,387 $ 1,770 $ 3,086,674 $ 18,468 $ 461,835 $ 3,566,977 (1) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for loan losses December 31, 2019 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Ending balance: individually evaluated for impairment $ — $ — $ — $ — $ 3 $ 4 $ — $ 7 $ — $ 135 $ 142 Ending balance: collectively evaluated for impairment $ 4,756 $ 180 $ 536 $ 20,203 $ 314 $ 1,636 $ 151 $ 27,776 $ 789 $ — $ 28,565 Loans, net: Ending balance $ 529,287 $ 85,355 $ 38,303 $ 2,199,734 $ 86,848 $ 45,456 $ 2,084 $ 2,987,067 $ 17,365 $ 432,653 $ 3,437,085 Ending balance: individually evaluated for impairment $ 13,226 $ 1,841 $ — $ 997 $ 55 $ 58 $ — $ 16,177 $ — $ 4,780 $ 20,957 Ending balance: collectively evaluated for impairment $ 516,061 $ 83,514 $ 38,303 $ 2,198,737 $ 86,793 $ 45,398 $ 2,084 $ 2,970,890 $ 17,365 $ 427,873 $ 3,416,128 “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). In calculating the provision for loan losses, based on past loan loss experience, management has determined that commercial real estate loans and multifamily loans having loan-to-value ratios, as described above, of less than 35%, and one-to-four family loans having loan-to-value ratios, as calculated above, of less than 60%, require less of a loss factor than those with higher loan to value ratios. 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 tables detail the recorded investment of originated loans held-for-investment, net of deferred fees and costs, by loan type and credit quality indicator at September 30, 2020, and December 31, 2019 (in thousands): At September 30, 2020 Real Estate Multifamily Commercial One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total < 35% LTV => 35% LTV < 35% LTV => 35% LTV < 60% LTV => 60% LTV Internal Risk Rating Pass $ 247,764 $ 2,031,541 $ 88,443 $ 428,828 $ 52,496 $ 21,528 $ 55,098 $ 88,507 $ 157,856 $ 1,770 $ 3,173,831 Special Mention — 756 77 5,104 605 — — 71 631 — 7,244 Substandard 579 7,762 4,470 19,499 1,709 23 — 281 111 — 34,434 Originated loans held-for-investment, net $ 248,343 $ 2,040,059 $ 92,990 $ 453,431 $ 54,810 $ 21,551 $ 55,098 $ 88,859 $ 158,598 $ 1,770 $ 3,215,509 At December 31, 2019 Real Estate Multifamily Commercial One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total < 35% LTV => 35% LTV < 35% LTV => 35% LTV < 60% LTV => 60% LTV Internal Risk Rating Pass $ 232,950 $ 1,960,984 $ 79,485 $ 440,065 $ 52,886 $ 29,967 $ 38,303 $ 86,547 $ 45,075 $ 2,084 $ 2,968,346 Special Mention — 296 370 1,092 777 — — 14 301 — 2,850 Substandard 301 5,203 — 8,275 1,397 328 — 287 80 — 15,871 Originated loans held-for-investment, net $ 233,251 $ 1,966,483 $ 79,855 $ 449,432 $ 55,060 $ 30,295 $ 38,303 $ 86,848 $ 45,456 $ 2,084 $ 2,987,067 Included in loans receivable are loans for which the accrual of interest income has been discontinued due to deterioration in the financial condition of the borrowers. The recorded investment of these non-accrual loans was $8.9 million and $9.4 million at September 30, 2020, and December 31, 2019, 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. The non-accrual amounts included loans deemed to be impaired of $6.5 million and $6.8 million at September 30, 2020, and December 31, 2019, respectively. Loans on non-accrual status with principal balances less than $500,000, and therefore not meeting the Company’s definition of an impaired loan, amounted to $2.3 million at September 30, 2020, and $2.6 million at December 31, 2019. There were no non-accrual loans held-for-sale at both September 30, 2020, and December 31, 2019. Loans past due 90 days or more and still accruing interest were $2.1 million at September 30, 2020, and $518,000 at December 31, 2019, and consisted of loans that are considered well-secured and in the process of collection. September 30, 2020 Total Non-Performing Loans Non-Accruing Loans 0-29 Days Past Due 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 LTV => 35% Substandard $ — $ — $ 937 $ 937 — $ 937 Total commercial — — 937 937 — 937 One-to-four family residential LTV < 60% Substandard 398 — 77 475 398 873 Total 398 — 77 475 398 873 LTV => 60% Substandard 23 — — 23 — 23 Total one-to-four family residential 421 — 77 498 398 896 Multifamily LTV < 35% Substandard — 288 — 288 — 288 LTV => 35% Substandard 1 — — 1 485 486 Total multifamily 1 288 — 289 485 774 Home equity and lines of credit Substandard 61 89 — 150 — 150 Total home equity and lines of credit 61 89 — 150 — 150 Total non-performing loans held-for-investment, originated 483 377 1,014 1,874 883 2,757 Loans acquired: Real estate loans: Commercial LTV < 35% Pass — — — — 267 267 Substandard — 79 187 266 — 266 LTV => 35% Substandard 2,762 568 2,520 5,850 134 5,984 Total commercial 2,762 647 2,707 6,116 401 6,517 One-to-four family residential LTV < 60% Pass — — — — 536 536 Special Mention — — — — 220 220 Substandard — — 328 328 6 334 LTV => 60% Substandard — — 93 93 — 93 Total one-to-four family residential — — 421 421 762 1,183 Multifamily LTV < 35% Substandard 39 — — 39 — 39 LTV => 35% Substandard — — 389 389 — 389 Total multifamily 39 — 389 428 — 428 Home equity and lines of credit - Substandard — — 28 28 14 42 Total home equity and lines of credit — — 28 28 14 42 Commercial and industrial loans Substandard — — — — 3 3 Total commercial and industrial loans — — — — 3 3 Total non-performing loans acquired 2,801 647 3,545 6,993 1,180 8,173 Total non-performing loans $ 3,284 $ 1,024 $ 4,559 $ 8,867 $ 2,063 $ 10,930 December 31, 2019 Total Non-Performing Loans Non-Accruing Loans 0-29 Days Past Due 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 LTV < 35% Substandard $ — $ — $ 2,416 $ 2,416 $ — $ 2,416 Total commercial — — 2,416 2,416 — 2,416 One-to-four family residential LTV < 60% Substandard — — 493 493 114 607 LTV => 60% Substandard — 29 — 29 — 29 Total one-to-four family residential — 29 493 522 114 636 Home equity and lines of credit Substandard — 67 89 156 — 156 Total home equity and lines of credit — 67 89 156 — 156 Total non-performing loans held-for-investment, originated — 96 2,998 3,094 114 3,208 Loans acquired: Real estate loans: Commercial LTV < 35% Substandard 79 — 188 267 66 333 LTV => 35% Substandard 3,530 — 1,709 5,239 187 5,426 Total commercial 3,609 — 1,897 5,506 253 5,759 One-to-four family residential LTV < 60% Substandard 190 — 85 275 151 426 LTV => 60% Substandard — — 93 93 — 93 Total one-to-four family residential 190 — 178 368 151 519 Multifamily LTV < 35% Substandard 40 — — 40 — 40 LTV => 35% Substandard — 397 — 397 — 397 Total multifamily 40 397 — 437 — 437 Home equity and lines of credit Substandard — — 28 28 — 28 Total home equity and lines of credit — — 28 28 — 28 Total non-performing loans acquired 3,839 397 2,103 6,339 404 6,743 Total non-performing loans $ 3,839 $ 493 $ 5,101 $ 9,433 $ 518 $ 9,951 The following tables set forth the detail and delinquency status of originated and acquired loans held-for-investment, net of deferred fees and costs, by performing and non-performing loans at September 30, 2020, and December 31, 2019 (in thousands): September 30, 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 LTV < 35% Pass $ 88,443 $ — $ 88,443 $ — $ 88,443 Special Mention — 77 77 — 77 Substandard 4,470 — 4,470 — 4,470 Total 92,913 77 92,990 — 92,990 LTV => 35% Pass 428,828 — 428,828 — 428,828 Special Mention 4,587 517 5,104 — 5,104 Substandard 13,594 4,968 18,562 937 19,499 Total 447,009 5,485 452,494 937 453,431 Total commercial 539,922 5,562 545,484 937 546,421 One-to-four family residential LTV < 60% Pass 52,496 — 52,496 — 52,496 Special Mention 100 505 605 — 605 Substandard 836 — 836 873 1,709 Total 53,432 505 53,937 873 54,810 LTV => 60% Pass 21,528 — 21,528 — 21,528 Substandard — — — 23 23 Total 21,528 — 21,528 23 21,551 Total one-to-four family residential 74,960 505 75,465 896 76,361 Construction and land Pass 55,098 — 55,098 — 55,098 Total construction and land 55,098 — 55,098 — 55,098 Multifamily LTV < 35% Pass 247,764 — 247,764 — 247,764 Substandard 291 — 291 288 579 Total 248,055 — 248,055 288 248,343 LTV => 35% Pass 2,031,542 — 2,031,542 — 2,031,542 Special Mention 465 291 756 — 756 Substandard 6,666 610 7,276 485 7,761 Total 2,038,673 901 2,039,574 485 2,040,059 Total multifamily 2,286,728 901 2,287,629 773 2,288,402 Home equity and lines of credit Pass 88,502 5 88,507 — 88,507 Special Mention 71 — 71 — 71 Substandard 131 — 131 150 281 Total home equity and lines of credit 88,704 5 88,709 150 88,859 Commercial and industrial Pass 157,540 316 157,856 — 157,856 Special Mention 231 400 631 — 631 Substandard 30 81 111 — 111 Total commercial and industrial 157,801 797 158,598 — 158,598 September 30, 2020 Performing (Accruing) Loans (Continued) 0-29 Days Past Due 30-89 Days Past Due Total Non-Performing Loans Total Loans Receivable, net Other loans - Pass 1,764 6 1,770 — 1,770 Total originated loans held-for-investment 3,204,977 7,776 3,212,753 2,756 3,215,509 Acquired loans: Real estate loans: One-to-four family residential LTV < 60% Pass 122,901 26 122,927 537 123,464 Special Mention 1,528 374 1,902 220 2,122 Substandard — — — 333 333 Total 124,429 400 124,829 1,090 125,919 LTV => 60% Pass 20,206 — 20,206 — 20,206 Substandard — — — 93 93 Total 20,206 — 20,206 93 20,299 Total one-to-four family residential 144,635 400 145,035 1,183 146,218 Commercial LTV < 35% Pass 52,941 500 53,441 267 53,708 Special Mention 5,076 — 5,076 — 5,076 Substandard 580 — 580 266 846 Total 58,597 500 59,097 533 59,630 LTV => 35% Pass 95,981 936 96,917 — 96,917 Special Mention 7,776 — 7,776 — 7,776 Substandard 3,767 1,448 5,215 5,984 11,199 Total 107,524 2,384 109,908 5,984 115,892 Total commercial 166,121 2,884 169,005 6,517 175,522 Construction and land Pass 23,843 — 23,843 — 23,843 Total construction and land 23,843 — 23,843 — 23,843 Multifamily LTV < 35% Pass 86,948 — 86,948 — 86,948 Substandard — — — 39 39 Total 86,948 — 86,948 39 86,987 LTV => 35% Pass 3,551 — 3,551 — 3,551 Substandard — — — 389 389 Total 3,551 — 3,551 389 3,940 Total multifamily 90,499 — 90,499 428 90,927 Home equity and lines of credit Pass 9,054 220 9,274 — 9,274 Special Mention $ 46 $ 202 $ 248 $ — $ 248 Substandard 125 — 125 43 168 Total home equity and lines of credit 9,225 422 9,647 43 9,690 Commercial and industrial Pass 50,635 189 50,824 — 50,824 Special Mention 190 — 190 — 190 Substandard 66 37 103 — 103 Total commercial and industrial 50,891 226 51,117 — 51,117 Other loans - Pass 315 4 319 4 323 Total loans acquired 485,529 3,936 489,465 8,175 497,640 $ 3,690,506 $ 11,712 $ 3,702,218 $ 10,931 $ 3,713,149 December 31, 2019 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 LTV < 35% Pass $ 79,383 $ 102 $ 79,485 — $ 79,485 Special Mention 370 — 370 — 370 Total 79,753 102 79,855 — 79,855 LTV => 35% Pass 439,253 812 440,065 — 440,065 Special Mention 1,092 — 1,092 — 1,092 Substandard 5,228 631 5,859 2,416 8,275 Total 445,573 1,443 447,016 2,416 449,432 Total commercial 525,326 1,545 526,871 2,416 529,287 One-to-four family residential LTV < 60% Pass 52,757 129 52,886 — 52,886 Special Mention — 777 777 — 777 Substandard 790 — 790 607 1,397 Total 53,547 906 54,453 607 55,060 LTV => 60% Pass 29,741 226 29,967 — 29,967 Substandard 299 — 299 29 328 Total 30,040 226 30,266 29 30,295 Total one-to-four family residential 83,587 1,132 84,719 636 85,355 Construction and land Pass 38,156 147 38,303 — 38,303 Total construction and land 38,156 147 38,303 — 38,303 Multifamily LTV < 35% Pass 232,658 292 232,950 — 232,950 Substandard 301 — 301 — 301 Total 232,959 292 233,251 — 233,251 LTV => 35% Pass 1,960,729 255 1,960,984 — 1,960,984 Special Mention 296 — 296 — 296 Substandard 5,203 — 5,203 — 5,203 Total 1,966,228 255 1,966,483 — 1,966,483 Total multifamily 2,199,187 547 2,199,734 — 2,199,734 Home equity and lines of credit Pass 86,380 167 86,547 — 86,547 Special Mention 14 — 14 — 14 Substandard 131 — 131 156 287 Total home equity and lines of credit 86,525 167 86,692 156 86,848 Commercial and industrial loans Pass 44,886 189 45,075 — 45,075 Special Mention 301 — 301 — 301 Substandard 80 — 80 — 80 Total commercial and industrial loans 45,267 189 45,456 — 45,456 Other loans - Pass 2,058 26 2,084 — 2,084 Total originated loans held-for-investment 2,980,106 3,753 2,983,859 3,208 2,987,067 December 31, 2019 Performing (Accruing) Loans 0-29 Days Past Due 30-89 Days Past Due Total Non-Performing Loans Total Loans Receivable, net Loans Acquired Real estate loans: One-to-four family residential LTV < 60% Pass 172,882 73 172,955 — 172,955 Special Mention — 385 385 — 385 Substandard — — — 426 426 Total 172,882 458 173,340 426 173,766 LTV => 60% Pass 14,116 — 14,116 — 14,116 Substandard — — — 93 93 Total 14,116 — 14,116 93 14,209 Total one-to-four family residential 186,998 458 187,456 519 187,975 Commercial LTV < 35% Pass 35,173 287 35,460 — 35,460 Special Mention 994 194 1,188 — 1,188 Substandard 369 — 369 334 703 Total 36,536 481 37,017 334 37,351 LTV => 35% Pass 60,311 — 60,311 — 60,311 Special Mention 134 464 598 — 598 Substandard 6,382 2,960 9,342 5,425 14,767 Total 66,827 3,424 70,251 5,425 75,676 Total commercial 103,363 3,905 107,268 5,759 113,027 Construction and land Pass 2,537 — 2,537 — 2,537 Total construction and land 2,537 — 2,537 — 2,537 Multifamily LTV < 35% Pass 105,327 — 105,327 — 105,327 Substandard — — — 40 40 Total 105,327 — 105,327 40 105,367 LTV => 35% Pass 2,653 — 2,653 — 2,653 Substandard — — — 397 397 Total 2,653 — 2,653 397 3,050 Total multifamily 107,980 — 107,980 437 108,417 Home equity and lines of credit Pass 11,842 50 11,892 — 11,892 Substandard 88 — 88 28 116 Total home equity and lines of credit 11,930 50 11,980 28 12,008 Commercial and industrial loans Pass 8,649 40 8,689 — 8,689 Total commercial and industrial loans 8,649 40 8,689 — 8,689 Other — — — — — Total loans acquired 421,457 4,453 425,910 6,743 432,653 $ 3,401,563 $ 8,206 $ 3,409,769 $ 9,951 $ 3,419,720 The following table summarizes originated and acquired impaired loans as of September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 December 31, 2019 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance Related Allowance With No Allowance Recorded: Real estate loans: Commercial LTV < 35% Substandard $ 79 $ 218 $ — $ — $ 139 $ — LTV => 35% Pass 3,585 4,334 — 5,582 6,468 — Special Mention 502 639 — — — — Substandard 8,431 8,638 — 10,438 11,002 — One-to-four family residential LTV < 60% Pass 801 892 — 1,379 1,463 — Special Mention 374 374 — 385 385 — Substandard 729 729 — 564 564 — LTV => 60% Pass 116 152 — 122 154 — Substandard 23 23 — 29 29 — Multifamily LTV < 35% Substandard 39 39 — 40 40 — LTV => 35% Pass — — — 26 496 — Special Mention 19 490 — — — — Substandard 610 610 — 972 972 — Home equity and lines of credit Pass 17 17 — 22 22 — Commercial and industrial loans Substandard 37 37 — 39 39 — With a Related Allowance Real estate loans: Commercial LTV => 35% Pass 1,296 1,296 (18) — — — Substandard 2,781 3,401 (284) 1,307 1,307 (135) One-to-four family residential LTV < 60% Substandard — — — — — — Home equity and lines of credit Substandard 32 32 (3) 33 33 (3) Commercial and industrial loans Special Mention 17 17 (3) 19 19 (4) Total: Real estate loans Commercial 16,674 18,526 (302) 17,327 18,916 (135) One-to-four family residential 2,043 2,170 — 2,479 2,595 — Multifamily 668 1,139 — 1,038 1,508 — Home equity and lines of credit 49 49 (3) 55 55 (3) Commercial and industrial loans 54 54 (3) 58 58 (4) $ 19,488 $ 21,938 $ (308) $ 20,957 $ 23,132 $ (142) Included in the above tables at September 30, 2020, are impaired loans with carrying balances of $13.1 million that were not written down by charge-offs or for which there are no specific reserves in our allowance for loan losses. Included in impaired loans at December 31, 2019, are loans with carrying balances of $15.9 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 September 30, 2020, and December 31, 2019, 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 originated and acquired impaired loans (excluding PCI loans) and interest recognized on impaired loans as of, and for, the three and nine months ended September 30, 2020, and September 30, 2019 (in thousands): Three Months Ended Nine Months Ended September 30, 2020 September 30, 2019 September 30, 2020 September 30, 2019 Average Recorded Investment Interest Income Average Recorded Investment Interest Income Average Recorded Investment Interest Income Average Recorded Investment Interest Income With No Allowance Recorded: Real estate loans: Commercial LTV < 35% Substandard $ 79 $ — $ — $ 40 $ 2 $ — LTV => 35% Pass 3,607 37 5,714 78 4,572 145 5,801 236 Special Mention 507 10 — 253 30 — — Substandard 8,440 3 10,707 54 9,550 159 11,156 183 Construction and Land One-to-four family residential LTV < 60% Pass 929 9 1,599 16 1,150 38 1,638 49 Special Mention 376 5 195 6 380 16 97 17 Substandard 474 8 233 4 517 27 236 8 LTV => 60% Pass 117 1 124 1 119 3 126 3 Substandard 24 — 62 1 26 1 101 7 Multifamily LTV < 35% Substandard 40 — 41 — 40 1 71 1 LTV => 35% Pass — — 30 4 12 — 34 12 Special Mention 21 4 — 10 11 — — Substandard 611 6 974 13 791 28 1,101 48 Home equity and lines of credit Pass 18 1 24 — 19 1 26 1 Commercial and industrial loans Substandard 37 — 44 38 — 47 — With a Related Allowance Recorded: Real estate loans: Commercial LTV => 35% Pass 1,307 16 — 654 49 — — Substandard 2,790 10 1,566 — 1,860 34 912 17 One-to-four family residential LTV < 60% Substandard 261 — 342 5 131 — 422 14 LTV => 60% Multifamily LTV => 35% Home equity and lines of credit Substandard 32 — 33 32 1 33 1 Commercial and industrial loans Special Mention 17 — 20 17 — 20 1 Total: Real estate loans Commercial 16,730 76 17,987 132 16,929 419 17,869 436 One-to-four family residential 2,181 23 2,555 33 2,323 85 2,620 98 Multifamily 672 10 1,045 17 853 40 1,206 61 Home equity and lines of credit 50 1 57 — 51 2 59 2 Commercial and industrial loans 54 — 64 — 55 — 67 1 $ 19,687 $ 110 $ 21,708 $ 182 $ 20,211 $ 546 $ 21,821 $ 598 There were no loans modified in a troubled debt restructurings (TDR) during the three months ended September 30, 2020 or 2019. The following tables summarizes loans that were modified in a TDR during the nine months ended September 30, 2020 or 20 19: Nine Months Ended September 30, 2020 Number of Relationships Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (1) (in thousands) Troubled Debt Restructurings Residential 1 $ 187 $ 187 Commercial real estate 2 544 544 Total Troubled Debt Restructurings 3 $ 731 $ 731 (1) Amounts are at time of modification Nine Months Ended September 30, 2019 Number of Relationships Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (1) (in thousands) Troubled Debt Restructurings Consumer 1 $ 2 $ 2 Commercial real estate 1 2,834 2,834 Total Troubled Debt Restructurings 2 $ 2,836 $ 2,836 (1) Amounts are at time of modification There were four loans (to three borrowers) in the first table above, that requested relief due to circumstances related to COVID-19 and were modified as troubled debt restructurings (TDRs) during the nine months ended September 30, 2020, all of which were modified to restructure payment terms. All four of the loans were delinquent and on non-accrual status prior to the implementation of our COVID-19 customer relief program (discussed further below) and were therefore considered to be TDRs. 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 a deferral of payments for 90 days, which may extend for an additional 90 days, with modifications in the form of payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment. As of September 30, 2020, the Company had 85 loan modifications (excluding PCI loans) with principal and/or interest payment deferrals on outstanding loan balances of $105.6 million. Of these 85 payment deferrals, 19 were principal deferrals totaling $40.8 million, and 66 were principal and interest deferrals totaling $64.8 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 September 30, 2020, and December 31, 2019, we had TDRs of $17.4 million and $18.5 million, respectively.

Deposits

Deposits	9 Months Ended
	Sep. 30, 2020
Deposits [Abstract]
Deposits	Deposits Deposits account balances are summarized as follows (in thousands): September 30, 2020 December 31, 2019 Non-interest-bearing checking $ 706,072 $ 387,409 Negotiable orders of withdrawal (NOW) and interest-bearing checking 897,575 573,927 Savings and money market 1,734,916 1,398,345 Certificates of deposit 782,601 1,048,552 Total deposits $ 4,121,164 $ 3,408,233 Interest expense on deposit accounts is summarized for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 NOW and interest-bearing checking, savings, and money market $ 2,023 $ 5,281 $ 8,990 $ 15,452 Certificates of deposit 3,620 5,235 13,405 15,860 Total interest expense on deposit accounts $ 5,643 $ 10,516 $ 22,395 $ 31,312

Equity Incentive Plans

Equity Incentive Plans	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Equity Incentive Plans	Equity Incentive Plans On May 22, 2019, the Northfield Bancorp, Inc. 2019 Equity Incentive Plan (the “2019 EIP”) was approved by stockholders of the Company. Under the 2019 EIP, the maximum number of shares of stock that may be delivered to participants in the form of stock options, stock appreciation rights (“SARs”), restricted stock awards, or restricted stock units is 6,000,000. To the extent an equity award is issued in the form of a restricted stock grant or restricted stock unit, the number of stock options/SARs that can be granted is reduced by 4.5. The maximum number of shares of stock that may be delivered to participants in the form of restricted stock awards and restricted stock units is 1,333,333 shares. Prior to May 22, 2019, the Company also maintained the Northfield Bancorp, Inc. 2014 Equity Incentive Plan (the “2014 EIP”). Upon approval of the 2019 EIP, the 2014 EIP was frozen and equity awards that would otherwise have been available for issuance are no longer available for grant. No stock options have been granted under the 2019 EIP. The following table is a summary of the Company’s stock options outstanding as of September 30, 2020, and changes therein during the nine 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, 2019 2,227,193 $ 4.01 $ 13.93 4.96 Exercised (13,000) 3.93 13.38 — Outstanding - September 30, 2020 2,214,193 4.01 13.94 4.21 Exercisable - September 30, 2020 2,189,114 4.00 13.91 4.20 Expected future stock option expense related to the non-vested options outstanding as of September 30, 2020, is $46,000 over a weighted average period of 1.1 years. On February 17, 2020, the Company granted to directors and employees, under the 2019 EIP, 83,744 restricted stock units with a total grant-date fair value of $1.3 million. Of these grants, 28,460 vest one year from the date of grant and 55,284 vest in equal installments over a five-year period beginning one year from the date of grant. The Company also issued 19,837 performance-based restricted stock units to its executive officers with a total grant date fair value of $313,623. Vesting of the performance-based restricted stock units will be based on achievement of certain levels of Core Return on Average Assets and will cliff-vest after a three-year measurement period ended December 31, 2022, 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 September 30, 2020, and changes therein during the nine months then ended. Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2019 71,102 $ 15.36 Granted 103,581 15.81 Vested (63,100) 14.97 Forfeited (1,225) 15.81 Non-vested at September 30, 2020 110,358 16.00 Expected future stock award expense related to the non-vested restricted share awards as of September 30, 2020, is $1.3 million over a weighted average period of 4.4 years. During the three months ended September 30, 2020 and September 30, 2019, the Company recorded $217,000 and $425,000, respectively, of stock-based compensation related to the above plans. During the nine months ended September 30, 2020, and September 30, 2019, the Company recorded $1.1 million and $2.9 million, respectively, of stock-based compensation related to the above plans.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2020
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 September 30, 2020, and December 31, 2019, by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification ( “ ASC ” ). Financial assets and liabilities are classified in their entirety based on the level of input that is significant to the fair value measurement. The fair value hierarchy is as follows: • Level 1 Inputs – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. • Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (for example, interest rates, volatilities, prepayment speeds, loss severities, credit risks and default rates) or inputs that are derived principally from or corroborated by observable market data by correlations or other means. • Level 3 Inputs – Significant unobservable inputs that reflect the Company’s own assumptions that market participants would use in pricing the assets or liabilities. The methods of determining the fair value of assets and liabilities presented in this note are consistent with our methodologies disclosed in Note 14 to the Consolidated Financial Statements of the Company’s 2019 Annual Report on Form 10-K. Fair Value Measurements at September 30, 2020 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 $ 3,170 $ — $ 3,170 $ — Mortgage-backed securities: Pass-through certificates: GSE $ 312,051 $ — $ 312,051 $ — REMICs: GSE 753,955 — 753,955 — Non-GSE 6 — 6 — 1,069,182 — 1,069,182 — Other debt securities Municipal bonds 229 — 229 — Corporate bonds 101,175 — 101,175 — Asset-backed securities 844 — 844 — 102,248 — 102,248 — Total debt securities available-for-sale 1,171,430 — 1,171,430 — Trading securities 10,993 10,993 — — Equity securities 4,502 4,502 — — Total $ 1,186,925 $ 15,495 $ 1,171,430 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 6,052 $ — $ — $ 6,052 Multifamily 19 — — 19 Home equity and lines of credit 29 — — 29 Total impaired real estate loans 6,100 — — 6,100 Commercial and industrial loans 13 — — 13 Total $ 6,113 $ — $ — $ 6,113 Fair Value Measurements at December 31, 2019 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: Mortgage-backed securities: Pass-through certificates: GSE $ 329,407 $ — $ 329,407 $ — REMICs: GSE 643,667 — 643,667 — Non-GSE 53 — 53 — 973,127 — 973,127 — Other debt securities Municipal bonds 299 — 299 — Corporate bonds 164,926 — 164,926 — 165,225 — 165,225 — Total debt securities available-for-sale 1,138,352 — 1,138,352 — Trading securities 11,222 11,222 — — Equity securities 250 250 — — Total $ 1,149,824 $ 11,472 $ 1,138,352 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 4,871 $ — $ — $ 4,871 Multifamily 26 — — 26 Home equity and lines of credit 30 — — 30 Total impaired real estate loans 4,927 — — 4,927 Commercial and industrial loans 15 — — 15 Total $ 4,942 $ — $ — $ 4,942 The following table presents qualitative information for Level 3 assets measured at fair value on a non-recurring basis at September 30, 2020, and December 31, 2019 (dollars in thousands): Fair Value Valuation Methodology Unobservable Inputs Range of Inputs September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019 Impaired loans $ 6,113 $ 4,942 Appraisals Discount for costs to sell 7.0% 7.0% Discount for quick sale 10.0% 10.0% Discounted cash flows Interest rates 4.13% to 6.25% 4.13% to 6.25% 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 September 30, 2020, and December 31, 2019. 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 nine months ended September 30, 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. Impaired Loans: At September 30, 2020 , and December 31, 2019, the Company had impaired loans held-for-investment (excluding PCI loans) with outstanding principal balances of $8.6 million and $7.0 million, respectively, which were recorded at their estimated fair value of $6.1 million and $4.9 million, respectively. The Company recorded a net increase in the specific reserve for impaired loans of $166,000 and $117,000 for the nine months ended September 30, 2020, and September 30, 2019, respectively. Net charge-offs of $260,000 and net recoveries of $1.3 million were recorded for the nine months ended September 30, 2020, and September 30, 2019, 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 troubled debt restructurings. 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 (FHLB) 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 September 30, 2020, and December 31, 2019, is presented in the following tables (in thousands): September 30, 2020 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 350,839 $ 350,839 $ — $ — $ 350,839 Trading securities 10,993 10,993 — — 10,993 Debt securities available-for-sale 1,171,430 — 1,171,430 — 1,171,430 Debt securities held-to-maturity 8,106 — 8,475 — 8,475 Equity securities 4,502 4,502 — — 4,502 Federal Home Loan Bank of New York stock, at cost 29,766 — 29,766 — 29,766 Net loans held-for-investment 3,692,901 — — 3,748,211 3,748,211 Derivative assets 1,863 — 1,863 — 1,863 Financial liabilities: Deposits $ 4,121,164 $ — $ 4,128,474 $ — $ 4,128,474 Borrowed funds 616,905 — 637,760 — 637,760 Advance payments by borrowers for taxes and insurance 17,329 — 17,329 — 17,329 Derivative liabilities 1,868 — 1,868 — 1,868 December 31, 2019 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 147,818 $ 147,818 $ — $ — $ 147,818 Trading securities 11,222 11,222 — — 11,222 Debt securities available-for-sale 1,138,352 — 1,138,352 — 1,138,352 Debt securities held-to-maturity 8,762 — 8,886 — 8,886 Equity securities (1) 250 250 — 250 Federal Home Loan Bank of New York stock, at cost 39,575 — 39,575 — 39,575 Net loans held-for-investment 3,408,378 — — 3,482,804 3,482,804 Derivative assets 79 — 79 — 79 Financial liabilities: Deposits $ 3,408,233 $ — $ 3,412,414 $ — $ 3,412,414 Borrowed funds 857,004 — 862,980 — 862,980 Advance payments by borrowers for taxes and insurance 44,069 — 44,069 — 44,069 Derivative liabilities 79 — 79 — 79 (1) Excludes investments measured at net asset value in the amount of $3.1 million at December 31, 2019, which has not been classified in the fair value hierarchy. Limitations Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected losses, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on-and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2020
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 September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Net income available to common stockholders $ 8,582 $ 13,139 $ 23,926 $ 30,114 Weighted average shares outstanding-basic 50,707,691 46,631,008 48,131,005 46,808,188 Effect of non-vested restricted stock and stock options outstanding 12,112 348,206 79,276 370,502 Weighted average shares outstanding-diluted 50,719,803 46,979,214 48,210,281 47,178,690 Earnings per share-basic $ 0.17 $ 0.28 $ 0.50 $ 0.64 Earnings per share-diluted $ 0.17 $ 0.28 $ 0.50 $ 0.64 Anti-dilutive shares 2,287,010 176,944 1,868,511 700,512

Leases

Leases	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Leases	Leases The Company’s leases primarily relate to real estate property for branches and office space with terms extending from six months up to 35 years. At September 30, 2020, 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 in the consolidated balance sheets. Right-of-use assets represent the right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recorded at the present value of lease payments over the lease term. As the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate, at lease inception, over a similar term in determining the present value of lease payments. Certain leases include options to renew, with one or more renewal terms ranging from five At September 30, 2020, the Company’s operating lease right-of-use assets and operating lease liabilities included in the consolidated balance sheet were $43.6 million and $48.1 million, respectively. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are recognized as incurred. Variable lease payments include common area maintenance charges, real estate taxes, repairs and maintenance costs and utilities. Operating and variable lease expenses are recorded in occupancy expense in the consolidated statements of comprehensive income. Supplemental lease information at or for the nine months ended September 30, 2020, and September 30, 2019 is as follows (dollars in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Operating lease cost $ 2,073 $ 1,551 $ 4,935 $ 4,568 Variable lease cost 878 663 2,378 2,152 Net lease cost $ 2,951 $ 2,214 $ 7,313 $ 6,720 Cash paid for amounts included in measurement of operating lease liabilities $ 2,111 $ 1,528 $ 5,180 $ 4,368 Right-of-use assets obtained in exchange for new operating lease liabilities $ — $ — $ 3,028 $ 1,013 Weighted average remaining lease term 12.39 years 12.68 years Weighted average discount rate 3.55 % 3.61 % 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 2020 $ 1,700 2021 6,555 2022 5,959 2023 5,942 2024 5,562 Thereafter 35,873 Total lease payments 61,591 Less: imputed interest 13,501 Present value of lease liabilities $ 48,090

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2020
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. Other income primarily includes rental income from subleasing one of the Company's branches to a third party, which is recognized at the time the transaction occurs. The following table summarizes non-interest income for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Fees and service charges for customer services: Service charges $ 565 $ 864 $ 1,674 $ 2,458 ATM and card interchange fees 351 343 930 983 Investment fees 93 79 191 192 Total fees and service charges for customer services 1,009 1,286 2,795 3,633 Income on bank owned life insurance (1) 894 3,268 2,635 5,071 Gains on available-for-sale debt securities, net (1) 45 123 105 337 Gains (losses) on trading securities, net (1) 763 28 397 1,457 Gains on sale of loans (1) — — 665 — Swap income (1) 307 — 691 — Other 4 28 81 115 Total non-interest income $ 3,022 $ 4,733 $ 7,369 $ 10,613 (1) Not in scope of Topic 606

Derivatives

Derivatives	9 Months Ended
	Sep. 30, 2020
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.     During the fourth quarter of 2019, the Company entered into its first derivative transaction. At September 30, 2020, the Company had six interest rate swaps with a notional amount of $34.4 million, and the fair value of the asset and liability derivative was $1.9 million. At December 31, 2019, the Company had one interest rate swap with a notional amount of $12.0 million, and the fair value of the asset and liability derivative was $79,000. The derivative asset is included in other assets on the balance sheet and the derivative liability is included in accrued expenses and other liabilities on the balance sheet. For the three and nine months ended September 30, 2020, the Company recorded net fee income of approximately $307,000 and $691,000, respectively.

Recent Accounting Pronouncement

Recent Accounting Pronouncements Adopted	9 Months Ended
	Sep. 30, 2020
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recent Accounting Pronouncements Adopted	Recent Accounting Pronouncements Adopted ASU No. 2018-15. In August 2018, the FASB issued ASU No. 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract.” This guidance aligns the accounting for implementation costs related to a hosting arrangement that is a service contract with the guidance on capitalizing costs associated with developing or obtaining internal-use software. Specifically, where a cloud computing arrangement includes a license to internal-use software, the software license is accounted for by the customer in accordance with Subtopic 350-40, “Intangibles - Goodwill and Other-Internal-Use Software”. ASU No. 2018-15 is effective for fiscal years beginning after December 15, 2019, with early adoption permitted. The Company adopted ASU No. 2018-15 on January 1, 2020, and it did not have an impact on the Company's financial condition or results of operation. ASU No. 2018-13. In August 2018, the FASB issued ASU No. 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement.” This ASU updates the disclosure requirements on Fair Value measurements by 1) removing: the disclosures for transfers between Level 1 and Level 2 of the fair value hierarchy, the policy for timing of transfers between levels, and the valuation processes for Level 3 fair value measurements; 2) modifying: disclosures for timing of liquidation of an investee’s assets and disclosures for uncertainty in measurement as of reporting date; and 3) adding: disclosures for changes in unrealized gains and losses included in other comprehensive income for recurring level 3 fair value measurements and disclosures for the range and weighted average of the significant unobservable inputs used to develop Level 3 fair value measurements. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019. With the exception of the following, which should be applied prospectively, disclosures relating to changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the disclosures for uncertainty measurement, all other changes should be applied retrospectively to all periods presented upon the effective date. The Company adopted ASU No. 2018-13 on January 1, 2020, and it did not have an impact on the Company's financial condition or results of operation. ASU No 2017-04. In January 2017, the FASB issued ASU No. 2017-04, “Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” The ASU eliminates Step 2 from the goodwill impairment test and also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The ASU is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. The Company adopted ASU No. 2017-04 on January 1, 2020, and it did not have an impact on the Company's financial condition or results of operation. During the nine months ended September 30, 2020, the Company qualitatively assessed the current economic environment, including the estimated impact of the COVID-19 pandemic on macroeconomic variables and economic forecasts, and on the Company's stock price which has experienced a decline in value, and how these might impact the fair value of its reporting unit. After consideration of the items above, the results for the nine months ended September 30, 2020, as well as the results of the annual 2019 impairment test which resulted in an excess of reporting unit fair value over book value of approximately 27%, the Company determined that it was more-likely-than-not that the fair value of its reporting unit was above its book value as of September 30, 2020. For additional information regarding the Company's goodwill impairment testing process, see Note 1 to the consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019.

Consolidated Financial Statem_2

Consolidated Financial Statements (Policies)	9 Months Ended
	Sep. 30, 2020
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 and nine months ended September 30, 2020 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2020 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-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 ”
Fair Value Measurements	The following tables present the assets reported on the consolidated balance sheets at their estimated fair value as of September 30, 2020, and December 31, 2019, by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification ( “ ASC ” ). Financial assets and liabilities are classified in their entirety based on the level of input that is significant to the fair value measurement. The fair value hierarchy is as follows: • Level 1 Inputs – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. • Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (for example, interest rates, volatilities, prepayment speeds, loss severities, credit risks and default rates) or inputs that are derived principally from or corroborated by observable market data by correlations or other means. • Level 3 Inputs – Significant unobservable inputs that reflect the Company’s own assumptions that market participants would use in pricing the assets or liabilities.
Fair Value of Financial Instruments	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 (FHLB) 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	Recent Accounting Pronouncements Adopted ASU No. 2018-15. In August 2018, the FASB issued ASU No. 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract.” This guidance aligns the accounting for implementation costs related to a hosting arrangement that is a service contract with the guidance on capitalizing costs associated with developing or obtaining internal-use software. Specifically, where a cloud computing arrangement includes a license to internal-use software, the software license is accounted for by the customer in accordance with Subtopic 350-40, “Intangibles - Goodwill and Other-Internal-Use Software”. ASU No. 2018-15 is effective for fiscal years beginning after December 15, 2019, with early adoption permitted. The Company adopted ASU No. 2018-15 on January 1, 2020, and it did not have an impact on the Company's financial condition or results of operation. ASU No. 2018-13. In August 2018, the FASB issued ASU No. 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement.” This ASU updates the disclosure requirements on Fair Value measurements by 1) removing: the disclosures for transfers between Level 1 and Level 2 of the fair value hierarchy, the policy for timing of transfers between levels, and the valuation processes for Level 3 fair value measurements; 2) modifying: disclosures for timing of liquidation of an investee’s assets and disclosures for uncertainty in measurement as of reporting date; and 3) adding: disclosures for changes in unrealized gains and losses included in other comprehensive income for recurring level 3 fair value measurements and disclosures for the range and weighted average of the significant unobservable inputs used to develop Level 3 fair value measurements. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019. With the exception of the following, which should be applied prospectively, disclosures relating to changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the disclosures for uncertainty measurement, all other changes should be applied retrospectively to all periods presented upon the effective date. The Company adopted ASU No. 2018-13 on January 1, 2020, and it did not have an impact on the Company's financial condition or results of operation. ASU No 2017-04. In January 2017, the FASB issued ASU No. 2017-04, “Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” The ASU eliminates Step 2 from the goodwill impairment test and also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The ASU is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. The Company adopted ASU No. 2017-04 on January 1, 2020, and it did not have an impact on the Company's financial condition or results of operation. During the nine months ended September 30, 2020, the Company qualitatively assessed the current economic environment, including the estimated impact of the COVID-19 pandemic on macroeconomic variables and economic forecasts, and on the Company's stock price which has experienced a decline in value, and how these might impact the fair value of its reporting unit. After consideration of the items above, the results for the nine months ended September 30, 2020, as well as the results of the annual 2019 impairment test which resulted in an excess of reporting unit fair value over book value of approximately 27%, the Company determined that it was more-likely-than-not that the fair value of its reporting unit was above its book value as of September 30, 2020. For additional information regarding the Company's goodwill impairment testing process, see Note 1 to the consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019.

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2020
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 $ 41,447 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 $ 3,183
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 01, 2020 Contractually required principal and interest $ 7,557 Contractual cash flows not expected to be collected (non-accretable discount) 3,213 Expected cash flows to be collected at acquisition 4,344 Interest component of expected cash flows (accretable yield) (572) Fair value of acquired loans $ 3,772

Debt Securities Available-for_2

Debt Securities Available-for-Sale (Tables)	9 Months Ended
	Sep. 30, 2020
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 September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value U.S. Government Agency Securities $ 3,168 $ 2 $ — $ 3,170 Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises (GSE) 300,937 11,297 183 312,051 Real estate mortgage investment conduits (REMICs): GSE 746,540 7,685 270 753,955 Non-GSE 6 — — 6 1,047,483 18,982 453 1,066,012 Other debt securities: Municipal bonds 228 1 — 229 Corporate bonds 99,855 1,337 17 101,175 Asset-backed securities 834 10 — 844 100,917 1,348 17 102,248 Total debt securities available-for-sale $ 1,151,568 $ 20,332 $ 470 $ 1,171,430 December 31, 2019 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: GSE $ 324,080 $ 6,081 $ 754 $ 329,407 REMICs: GSE 643,816 2,076 2,225 643,667 Non-GSE 53 — — 53 967,949 8,157 2,979 973,127 Other debt securities: Municipal bonds 296 3 — 299 Corporate bonds 163,725 1,214 13 164,926 164,021 1,217 13 165,225 Total debt securities available-for-sale $ 1,131,970 $ 9,374 $ 2,992 $ 1,138,352
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 September 30, 2020 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 37,140 $ 37,313 Due after one year through five years 62,943 64,091 Due after five years through ten years 3,168 3,170 Due after ten years 834 844 $ 104,085 $ 105,418
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 September 30, 2020, and December 31, 2019, were as follows (in thousands): September 30, 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 Mortgage-backed securities: Pass-through certificates: GSE $ 172 $ 33,945 $ 11 $ 428 $ 183 $ 34,373 REMICs: GSE 268 79,194 2 2,326 270 81,520 Other debt securities: Corporate bonds 17 4,267 — — 17 4,267 Total $ 457 $ 117,406 $ 13 $ 2,754 $ 470 $ 120,160 December 31, 2019 Less than 12 months 12 months or more Total Unrealized Estimated Unrealized Estimated Unrealized Estimated losses fair value losses fair value losses fair value Mortgage-backed securities: Pass-through certificates: GSE $ 25 $ 3,404 $ 729 $ 55,184 $ 754 $ 58,588 REMICs: GSE 950 197,634 1,275 54,555 2,225 252,189 Non-GSE — — — 53 — 53 Other debt securities: Corporate bonds — — 13 15,586 13 15,586 Total $ 975 $ 201,038 $ 2,017 $ 125,378 $ 2,992 $ 326,416

Debt Securities Held-to-Matur_2

Debt Securities Held-to-Maturity (Tables)	9 Months Ended
	Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Securities Held-to-Maturity	The following is a summary of debt securities held-to-maturity at September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 8,106 $ 369 $ — $ 8,475 Total securities held-to-maturity $ 8,106 $ 369 $ — $ 8,475 December 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 8,762 $ 129 $ 5 $ 8,886 Total securities held-to-maturity $ 8,762 $ 129 $ 5 $ 8,886
Held-to-maturity Securities	Gross unrealized losses on mortgage-backed securities held-to-maturity, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2019, were as follows (in thousands): December 31, 2019 Less than 12 months 12 months or more Total Unrealized losses Estimated fair value Unrealized losses Estimated fair value Unrealized losses Estimated fair value Mortgage-backed securities: Pass-through certificates: GSEs $ — $ — $ 5 $ 378 $ 5 $ 378 Total securities held-to-maturity $ — $ — $ 5 $ 378 $ 5 $ 378

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2020
Receivables [Abstract]
Net Loans Held-for-Investment	Net loans held-for-investment are as follows (in thousands): September 30, December 31, 2020 2019 Real estate loans: Multifamily $ 2,285,074 $ 2,196,407 Commercial mortgage 545,826 528,681 One-to-four family residential mortgage 74,912 83,742 Home equity and lines of credit 86,855 84,928 Construction and land 55,069 38,284 Total real estate loans 3,047,736 2,932,042 Commercial and industrial loans (1) 162,530 45,328 Other loans 1,770 2,083 Total commercial and industrial and other loans 164,300 47,411 Deferred loan cost, net 3,473 7,614 Originated loans held-for-investment, net 3,215,509 2,987,067 PCI Loans 18,468 17,365 Loans acquired: One-to-four family residential mortgage 146,218 187,975 Multifamily 90,927 108,417 Commercial mortgage 175,522 113,027 Home equity and lines of credit 9,690 12,008 Construction and land 23,843 2,537 Total acquired real estate loans 446,200 423,964 Commercial and industrial loans (1) 51,117 8,689 Other loans 323 — Total loans acquired, net 497,640 432,653 Loans held-for-investment, net 3,731,617 3,437,085 Allowance for loan losses (38,716) (28,707) Net loans held-for-investment $ 3,692,901 $ 3,408,378 (1) Included in originated and acquired commercial and industrial loans at September 30, 2020, are PPP loans totaling $115.2 million and $30.0 million, respectively. There were no PPP loans at December 31, 2019.
Summary of Accretable Yield	The following table details the accretion of interest income for PCI loans for the three and nine months ended September 30, 2020 and September 30, 2019 (in thousands): At or for the three months ended September 30, At or for the nine months ended September 30, 2020 2019 2020 2019 Balance at the beginning of period $ 15,566 $ 19,794 $ 17,086 $ 21,846 Acquisition 572 — 572 — Accretion into interest income (648) (1,059) (2,168) (3,111) Balance at end of period $ 15,490 $ 18,735 $ 15,490 $ 18,735
Allowance For Loan Losses And Loans Receivable By Portfolio Segment Table	The following tables set forth activity in our allowance for loan losses, by loan type, as of and for the three and nine months ended September 30, 2020, and September 30, 2019 (in thousands): Three Months Ended September 30, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Beginning balance $ 6,509 $ 272 $ 937 $ 27,243 $ 558 $ 1,846 $ 176 $ 37,541 $ 789 $ 190 $ 38,520 Charge-offs (7) — — — — — — (7) — (5) (12) Recoveries 13 — — — 26 1 — 40 — 3 43 Provisions (credit) 892 (50) 198 (596) (157) (73) (47) 167 — (2) 165 Ending balance $ 7,407 $ 222 $ 1,135 $ 26,647 $ 427 $ 1,774 $ 129 $ 37,741 $ 789 $ 186 $ 38,716 Three Months Ended September 30, 2019 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Beginning balance $ 5,331 $ 234 $ 584 $ 18,384 $ 417 $ 1,591 $ 146 $ 26,687 $ 1,010 $ 135 $ 27,832 Charge-offs (514) — — — — — — (514) — — (514) Recoveries 60 — — 1,818 — 17 — 1,895 — 153 2,048 Provisions (credit) (8) (17) (192) (799) (103) (9) (19) (1,147) — (153) (1,300) Ending balance $ 4,869 $ 217 $ 392 $ 19,403 $ 314 $ 1,599 $ 127 $ 26,921 $ 1,010 $ 135 $ 28,066 Nine Months Ended September 30, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Beginning balance $ 4,756 $ 180 $ 536 $ 20,203 $ 317 $ 1,640 $ 151 $ 27,783 $ 789 $ 135 $ 28,707 Charge-offs (171) — — — — (94) — (265) — (438) (703) Recoveries 396 26 — — — 6 — 428 — 15 443 Provisions (credit) 2,426 16 599 6,444 110 222 (22) 9,795 — 474 10,269 Ending balance $ 7,407 $ 222 $ 1,135 $ 26,647 $ 427 $ 1,774 $ 129 $ 37,741 $ 789 $ 186 $ 38,716 Nine Months Ended September 30, 2019 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Beginning balance $ 5,630 $ 342 $ 463 $ 18,084 $ 291 $ 1,569 $ 108 $ 26,487 $ 1,010 $ — $ 27,497 Charge-offs (520) — — — — (83) (123) (726) — (112) (838) Recoveries 85 72 — 1,818 — 17 1 1,993 — 164 2,157 Provisions (credit) (326) (197) (71) (499) 23 96 141 (833) — 83 (750) Ending balance $ 4,869 $ 217 $ 392 $ 19,403 $ 314 $ 1,599 $ 127 $ 26,921 $ 1,010 $ 135 $ 28,066 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 September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Ending balance: individually evaluated for impairment $ 116 $ — $ — $ — $ 3 $ 3 $ — $ 122 $ — $ 186 $ 308 Ending balance: collectively evaluated for impairment $ 7,291 $ 222 $ 1,135 $ 26,647 $ 424 $ 1,771 $ 129 $ 37,619 $ 789 $ — $ 38,408 Loans, net: Ending balance $ 546,421 $ 76,361 $ 55,098 $ 2,288,402 $ 88,859 $ 158,598 $ 1,770 $ 3,215,509 $ 18,468 $ 497,640 $ 3,731,617 Ending balance: individually evaluated for impairment $ 11,523 $ 1,423 $ — $ 629 $ 49 $ 54 $ — $ 13,678 $ — $ 5,810 $ 19,488 PPP loans not evaluated for impairment (1) $ — $ — $ — $ — $ — $ 115,157 $ — $ 115,157 $ — $ 29,995 $ 145,152 Ending balance: collectively evaluated for impairment $ 534,898 $ 74,938 $ 55,098 $ 2,287,773 $ 88,810 $ 43,387 $ 1,770 $ 3,086,674 $ 18,468 $ 461,835 $ 3,566,977 (1) PPP loans are guaranteed by the SBA and therefore excluded from the allowance for loan losses December 31, 2019 Real Estate Commercial One-to-Four Family Construction and Land Multifamily Home Equity and Lines of Credit Commercial and Industrial Other Originated Loans Total Purchased Credit-Impaired Acquired Loans Total Allowance for loan losses: Ending balance: individually evaluated for impairment $ — $ — $ — $ — $ 3 $ 4 $ — $ 7 $ — $ 135 $ 142 Ending balance: collectively evaluated for impairment $ 4,756 $ 180 $ 536 $ 20,203 $ 314 $ 1,636 $ 151 $ 27,776 $ 789 $ — $ 28,565 Loans, net: Ending balance $ 529,287 $ 85,355 $ 38,303 $ 2,199,734 $ 86,848 $ 45,456 $ 2,084 $ 2,987,067 $ 17,365 $ 432,653 $ 3,437,085 Ending balance: individually evaluated for impairment $ 13,226 $ 1,841 $ — $ 997 $ 55 $ 58 $ — $ 16,177 $ — $ 4,780 $ 20,957 Ending balance: collectively evaluated for impairment $ 516,061 $ 83,514 $ 38,303 $ 2,198,737 $ 86,793 $ 45,398 $ 2,084 $ 2,970,890 $ 17,365 $ 427,873 $ 3,416,128
Investment of Originated Loans Held-for-Investment, Net of Deferred Fees and Costs, by Loan Type and Credit Quality Indicator	The following tables detail the recorded investment of originated loans held-for-investment, net of deferred fees and costs, by loan type and credit quality indicator at September 30, 2020, and December 31, 2019 (in thousands): At September 30, 2020 Real Estate Multifamily Commercial One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total < 35% LTV => 35% LTV < 35% LTV => 35% LTV < 60% LTV => 60% LTV Internal Risk Rating Pass $ 247,764 $ 2,031,541 $ 88,443 $ 428,828 $ 52,496 $ 21,528 $ 55,098 $ 88,507 $ 157,856 $ 1,770 $ 3,173,831 Special Mention — 756 77 5,104 605 — — 71 631 — 7,244 Substandard 579 7,762 4,470 19,499 1,709 23 — 281 111 — 34,434 Originated loans held-for-investment, net $ 248,343 $ 2,040,059 $ 92,990 $ 453,431 $ 54,810 $ 21,551 $ 55,098 $ 88,859 $ 158,598 $ 1,770 $ 3,215,509 At December 31, 2019 Real Estate Multifamily Commercial One-to-Four Family Construction and Land Home Equity and Lines of Credit Commercial and Industrial Other Total < 35% LTV => 35% LTV < 35% LTV => 35% LTV < 60% LTV => 60% LTV Internal Risk Rating Pass $ 232,950 $ 1,960,984 $ 79,485 $ 440,065 $ 52,886 $ 29,967 $ 38,303 $ 86,547 $ 45,075 $ 2,084 $ 2,968,346 Special Mention — 296 370 1,092 777 — — 14 301 — 2,850 Substandard 301 5,203 — 8,275 1,397 328 — 287 80 — 15,871 Originated loans held-for-investment, net $ 233,251 $ 1,966,483 $ 79,855 $ 449,432 $ 55,060 $ 30,295 $ 38,303 $ 86,848 $ 45,456 $ 2,084 $ 2,987,067
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 September 30, 2020, and December 31, 2019, excluding PCI loans which have been segregated into pools. For PCI loans, each loan pool is accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows (in thousands): September 30, 2020 Total Non-Performing Loans Non-Accruing Loans 0-29 Days Past Due 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 LTV => 35% Substandard $ — $ — $ 937 $ 937 — $ 937 Total commercial — — 937 937 — 937 One-to-four family residential LTV < 60% Substandard 398 — 77 475 398 873 Total 398 — 77 475 398 873 LTV => 60% Substandard 23 — — 23 — 23 Total one-to-four family residential 421 — 77 498 398 896 Multifamily LTV < 35% Substandard — 288 — 288 — 288 LTV => 35% Substandard 1 — — 1 485 486 Total multifamily 1 288 — 289 485 774 Home equity and lines of credit Substandard 61 89 — 150 — 150 Total home equity and lines of credit 61 89 — 150 — 150 Total non-performing loans held-for-investment, originated 483 377 1,014 1,874 883 2,757 Loans acquired: Real estate loans: Commercial LTV < 35% Pass — — — — 267 267 Substandard — 79 187 266 — 266 LTV => 35% Substandard 2,762 568 2,520 5,850 134 5,984 Total commercial 2,762 647 2,707 6,116 401 6,517 One-to-four family residential LTV < 60% Pass — — — — 536 536 Special Mention — — — — 220 220 Substandard — — 328 328 6 334 LTV => 60% Substandard — — 93 93 — 93 Total one-to-four family residential — — 421 421 762 1,183 Multifamily LTV < 35% Substandard 39 — — 39 — 39 LTV => 35% Substandard — — 389 389 — 389 Total multifamily 39 — 389 428 — 428 Home equity and lines of credit - Substandard — — 28 28 14 42 Total home equity and lines of credit — — 28 28 14 42 Commercial and industrial loans Substandard — — — — 3 3 Total commercial and industrial loans — — — — 3 3 Total non-performing loans acquired 2,801 647 3,545 6,993 1,180 8,173 Total non-performing loans $ 3,284 $ 1,024 $ 4,559 $ 8,867 $ 2,063 $ 10,930 December 31, 2019 Total Non-Performing Loans Non-Accruing Loans 0-29 Days Past Due 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 LTV < 35% Substandard $ — $ — $ 2,416 $ 2,416 $ — $ 2,416 Total commercial — — 2,416 2,416 — 2,416 One-to-four family residential LTV < 60% Substandard — — 493 493 114 607 LTV => 60% Substandard — 29 — 29 — 29 Total one-to-four family residential — 29 493 522 114 636 Home equity and lines of credit Substandard — 67 89 156 — 156 Total home equity and lines of credit — 67 89 156 — 156 Total non-performing loans held-for-investment, originated — 96 2,998 3,094 114 3,208 Loans acquired: Real estate loans: Commercial LTV < 35% Substandard 79 — 188 267 66 333 LTV => 35% Substandard 3,530 — 1,709 5,239 187 5,426 Total commercial 3,609 — 1,897 5,506 253 5,759 One-to-four family residential LTV < 60% Substandard 190 — 85 275 151 426 LTV => 60% Substandard — — 93 93 — 93 Total one-to-four family residential 190 — 178 368 151 519 Multifamily LTV < 35% Substandard 40 — — 40 — 40 LTV => 35% Substandard — 397 — 397 — 397 Total multifamily 40 397 — 437 — 437 Home equity and lines of credit Substandard — — 28 28 — 28 Total home equity and lines of credit — — 28 28 — 28 Total non-performing loans acquired 3,839 397 2,103 6,339 404 6,743 Total non-performing loans $ 3,839 $ 493 $ 5,101 $ 9,433 $ 518 $ 9,951
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 originated and acquired loans held-for-investment, net of deferred fees and costs, by performing and non-performing loans at September 30, 2020, and December 31, 2019 (in thousands): September 30, 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 LTV < 35% Pass $ 88,443 $ — $ 88,443 $ — $ 88,443 Special Mention — 77 77 — 77 Substandard 4,470 — 4,470 — 4,470 Total 92,913 77 92,990 — 92,990 LTV => 35% Pass 428,828 — 428,828 — 428,828 Special Mention 4,587 517 5,104 — 5,104 Substandard 13,594 4,968 18,562 937 19,499 Total 447,009 5,485 452,494 937 453,431 Total commercial 539,922 5,562 545,484 937 546,421 One-to-four family residential LTV < 60% Pass 52,496 — 52,496 — 52,496 Special Mention 100 505 605 — 605 Substandard 836 — 836 873 1,709 Total 53,432 505 53,937 873 54,810 LTV => 60% Pass 21,528 — 21,528 — 21,528 Substandard — — — 23 23 Total 21,528 — 21,528 23 21,551 Total one-to-four family residential 74,960 505 75,465 896 76,361 Construction and land Pass 55,098 — 55,098 — 55,098 Total construction and land 55,098 — 55,098 — 55,098 Multifamily LTV < 35% Pass 247,764 — 247,764 — 247,764 Substandard 291 — 291 288 579 Total 248,055 — 248,055 288 248,343 LTV => 35% Pass 2,031,542 — 2,031,542 — 2,031,542 Special Mention 465 291 756 — 756 Substandard 6,666 610 7,276 485 7,761 Total 2,038,673 901 2,039,574 485 2,040,059 Total multifamily 2,286,728 901 2,287,629 773 2,288,402 Home equity and lines of credit Pass 88,502 5 88,507 — 88,507 Special Mention 71 — 71 — 71 Substandard 131 — 131 150 281 Total home equity and lines of credit 88,704 5 88,709 150 88,859 Commercial and industrial Pass 157,540 316 157,856 — 157,856 Special Mention 231 400 631 — 631 Substandard 30 81 111 — 111 Total commercial and industrial 157,801 797 158,598 — 158,598 September 30, 2020 Performing (Accruing) Loans (Continued) 0-29 Days Past Due 30-89 Days Past Due Total Non-Performing Loans Total Loans Receivable, net Other loans - Pass 1,764 6 1,770 — 1,770 Total originated loans held-for-investment 3,204,977 7,776 3,212,753 2,756 3,215,509 Acquired loans: Real estate loans: One-to-four family residential LTV < 60% Pass 122,901 26 122,927 537 123,464 Special Mention 1,528 374 1,902 220 2,122 Substandard — — — 333 333 Total 124,429 400 124,829 1,090 125,919 LTV => 60% Pass 20,206 — 20,206 — 20,206 Substandard — — — 93 93 Total 20,206 — 20,206 93 20,299 Total one-to-four family residential 144,635 400 145,035 1,183 146,218 Commercial LTV < 35% Pass 52,941 500 53,441 267 53,708 Special Mention 5,076 — 5,076 — 5,076 Substandard 580 — 580 266 846 Total 58,597 500 59,097 533 59,630 LTV => 35% Pass 95,981 936 96,917 — 96,917 Special Mention 7,776 — 7,776 — 7,776 Substandard 3,767 1,448 5,215 5,984 11,199 Total 107,524 2,384 109,908 5,984 115,892 Total commercial 166,121 2,884 169,005 6,517 175,522 Construction and land Pass 23,843 — 23,843 — 23,843 Total construction and land 23,843 — 23,843 — 23,843 Multifamily LTV < 35% Pass 86,948 — 86,948 — 86,948 Substandard — — — 39 39 Total 86,948 — 86,948 39 86,987 LTV => 35% Pass 3,551 — 3,551 — 3,551 Substandard — — — 389 389 Total 3,551 — 3,551 389 3,940 Total multifamily 90,499 — 90,499 428 90,927 Home equity and lines of credit Pass 9,054 220 9,274 — 9,274 Special Mention $ 46 $ 202 $ 248 $ — $ 248 Substandard 125 — 125 43 168 Total home equity and lines of credit 9,225 422 9,647 43 9,690 Commercial and industrial Pass 50,635 189 50,824 — 50,824 Special Mention 190 — 190 — 190 Substandard 66 37 103 — 103 Total commercial and industrial 50,891 226 51,117 — 51,117 Other loans - Pass 315 4 319 4 323 Total loans acquired 485,529 3,936 489,465 8,175 497,640 $ 3,690,506 $ 11,712 $ 3,702,218 $ 10,931 $ 3,713,149 December 31, 2019 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 LTV < 35% Pass $ 79,383 $ 102 $ 79,485 — $ 79,485 Special Mention 370 — 370 — 370 Total 79,753 102 79,855 — 79,855 LTV => 35% Pass 439,253 812 440,065 — 440,065 Special Mention 1,092 — 1,092 — 1,092 Substandard 5,228 631 5,859 2,416 8,275 Total 445,573 1,443 447,016 2,416 449,432 Total commercial 525,326 1,545 526,871 2,416 529,287 One-to-four family residential LTV < 60% Pass 52,757 129 52,886 — 52,886 Special Mention — 777 777 — 777 Substandard 790 — 790 607 1,397 Total 53,547 906 54,453 607 55,060 LTV => 60% Pass 29,741 226 29,967 — 29,967 Substandard 299 — 299 29 328 Total 30,040 226 30,266 29 30,295 Total one-to-four family residential 83,587 1,132 84,719 636 85,355 Construction and land Pass 38,156 147 38,303 — 38,303 Total construction and land 38,156 147 38,303 — 38,303 Multifamily LTV < 35% Pass 232,658 292 232,950 — 232,950 Substandard 301 — 301 — 301 Total 232,959 292 233,251 — 233,251 LTV => 35% Pass 1,960,729 255 1,960,984 — 1,960,984 Special Mention 296 — 296 — 296 Substandard 5,203 — 5,203 — 5,203 Total 1,966,228 255 1,966,483 — 1,966,483 Total multifamily 2,199,187 547 2,199,734 — 2,199,734 Home equity and lines of credit Pass 86,380 167 86,547 — 86,547 Special Mention 14 — 14 — 14 Substandard 131 — 131 156 287 Total home equity and lines of credit 86,525 167 86,692 156 86,848 Commercial and industrial loans Pass 44,886 189 45,075 — 45,075 Special Mention 301 — 301 — 301 Substandard 80 — 80 — 80 Total commercial and industrial loans 45,267 189 45,456 — 45,456 Other loans - Pass 2,058 26 2,084 — 2,084 Total originated loans held-for-investment 2,980,106 3,753 2,983,859 3,208 2,987,067 December 31, 2019 Performing (Accruing) Loans 0-29 Days Past Due 30-89 Days Past Due Total Non-Performing Loans Total Loans Receivable, net Loans Acquired Real estate loans: One-to-four family residential LTV < 60% Pass 172,882 73 172,955 — 172,955 Special Mention — 385 385 — 385 Substandard — — — 426 426 Total 172,882 458 173,340 426 173,766 LTV => 60% Pass 14,116 — 14,116 — 14,116 Substandard — — — 93 93 Total 14,116 — 14,116 93 14,209 Total one-to-four family residential 186,998 458 187,456 519 187,975 Commercial LTV < 35% Pass 35,173 287 35,460 — 35,460 Special Mention 994 194 1,188 — 1,188 Substandard 369 — 369 334 703 Total 36,536 481 37,017 334 37,351 LTV => 35% Pass 60,311 — 60,311 — 60,311 Special Mention 134 464 598 — 598 Substandard 6,382 2,960 9,342 5,425 14,767 Total 66,827 3,424 70,251 5,425 75,676 Total commercial 103,363 3,905 107,268 5,759 113,027 Construction and land Pass 2,537 — 2,537 — 2,537 Total construction and land 2,537 — 2,537 — 2,537 Multifamily LTV < 35% Pass 105,327 — 105,327 — 105,327 Substandard — — — 40 40 Total 105,327 — 105,327 40 105,367 LTV => 35% Pass 2,653 — 2,653 — 2,653 Substandard — — — 397 397 Total 2,653 — 2,653 397 3,050 Total multifamily 107,980 — 107,980 437 108,417 Home equity and lines of credit Pass 11,842 50 11,892 — 11,892 Substandard 88 — 88 28 116 Total home equity and lines of credit 11,930 50 11,980 28 12,008 Commercial and industrial loans Pass 8,649 40 8,689 — 8,689 Total commercial and industrial loans 8,649 40 8,689 — 8,689 Other — — — — — Total loans acquired 421,457 4,453 425,910 6,743 432,653 $ 3,401,563 $ 8,206 $ 3,409,769 $ 9,951 $ 3,419,720
Summary of Impaired Loans	The following table summarizes originated and acquired impaired loans as of September 30, 2020, and December 31, 2019 (in thousands): September 30, 2020 December 31, 2019 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance Related Allowance With No Allowance Recorded: Real estate loans: Commercial LTV < 35% Substandard $ 79 $ 218 $ — $ — $ 139 $ — LTV => 35% Pass 3,585 4,334 — 5,582 6,468 — Special Mention 502 639 — — — — Substandard 8,431 8,638 — 10,438 11,002 — One-to-four family residential LTV < 60% Pass 801 892 — 1,379 1,463 — Special Mention 374 374 — 385 385 — Substandard 729 729 — 564 564 — LTV => 60% Pass 116 152 — 122 154 — Substandard 23 23 — 29 29 — Multifamily LTV < 35% Substandard 39 39 — 40 40 — LTV => 35% Pass — — — 26 496 — Special Mention 19 490 — — — — Substandard 610 610 — 972 972 — Home equity and lines of credit Pass 17 17 — 22 22 — Commercial and industrial loans Substandard 37 37 — 39 39 — With a Related Allowance Real estate loans: Commercial LTV => 35% Pass 1,296 1,296 (18) — — — Substandard 2,781 3,401 (284) 1,307 1,307 (135) One-to-four family residential LTV < 60% Substandard — — — — — — Home equity and lines of credit Substandard 32 32 (3) 33 33 (3) Commercial and industrial loans Special Mention 17 17 (3) 19 19 (4) Total: Real estate loans Commercial 16,674 18,526 (302) 17,327 18,916 (135) One-to-four family residential 2,043 2,170 — 2,479 2,595 — Multifamily 668 1,139 — 1,038 1,508 — Home equity and lines of credit 49 49 (3) 55 55 (3) Commercial and industrial loans 54 54 (3) 58 58 (4) $ 19,488 $ 21,938 $ (308) $ 20,957 $ 23,132 $ (142) Three Months Ended Nine Months Ended September 30, 2020 September 30, 2019 September 30, 2020 September 30, 2019 Average Recorded Investment Interest Income Average Recorded Investment Interest Income Average Recorded Investment Interest Income Average Recorded Investment Interest Income With No Allowance Recorded: Real estate loans: Commercial LTV < 35% Substandard $ 79 $ — $ — $ 40 $ 2 $ — LTV => 35% Pass 3,607 37 5,714 78 4,572 145 5,801 236 Special Mention 507 10 — 253 30 — — Substandard 8,440 3 10,707 54 9,550 159 11,156 183 Construction and Land One-to-four family residential LTV < 60% Pass 929 9 1,599 16 1,150 38 1,638 49 Special Mention 376 5 195 6 380 16 97 17 Substandard 474 8 233 4 517 27 236 8 LTV => 60% Pass 117 1 124 1 119 3 126 3 Substandard 24 — 62 1 26 1 101 7 Multifamily LTV < 35% Substandard 40 — 41 — 40 1 71 1 LTV => 35% Pass — — 30 4 12 — 34 12 Special Mention 21 4 — 10 11 — — Substandard 611 6 974 13 791 28 1,101 48 Home equity and lines of credit Pass 18 1 24 — 19 1 26 1 Commercial and industrial loans Substandard 37 — 44 38 — 47 — With a Related Allowance Recorded: Real estate loans: Commercial LTV => 35% Pass 1,307 16 — 654 49 — — Substandard 2,790 10 1,566 — 1,860 34 912 17 One-to-four family residential LTV < 60% Substandard 261 — 342 5 131 — 422 14 LTV => 60% Multifamily LTV => 35% Home equity and lines of credit Substandard 32 — 33 32 1 33 1 Commercial and industrial loans Special Mention 17 — 20 17 — 20 1 Total: Real estate loans Commercial 16,730 76 17,987 132 16,929 419 17,869 436 One-to-four family residential 2,181 23 2,555 33 2,323 85 2,620 98 Multifamily 672 10 1,045 17 853 40 1,206 61 Home equity and lines of credit 50 1 57 — 51 2 59 2 Commercial and industrial loans 54 — 64 — 55 — 67 1 $ 19,687 $ 110 $ 21,708 $ 182 $ 20,211 $ 546 $ 21,821 $ 598
Troubled Debt Restructurings on Financing Receivables	The following tables summarizes loans that were modified in a TDR during the nine months ended September 30, 2020 or 20 19: Nine Months Ended September 30, 2020 Number of Relationships Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (1) (in thousands) Troubled Debt Restructurings Residential 1 $ 187 $ 187 Commercial real estate 2 544 544 Total Troubled Debt Restructurings 3 $ 731 $ 731 (1) Amounts are at time of modification Nine Months Ended September 30, 2019 Number of Relationships Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (1) (in thousands) Troubled Debt Restructurings Consumer 1 $ 2 $ 2 Commercial real estate 1 2,834 2,834 Total Troubled Debt Restructurings 2 $ 2,836 $ 2,836 (1) Amounts are at time of modification

Deposits (Tables)

Deposits (Tables)	9 Months Ended
	Sep. 30, 2020
Deposits [Abstract]
Deposit Account Balances	Deposits account balances are summarized as follows (in thousands): September 30, 2020 December 31, 2019 Non-interest-bearing checking $ 706,072 $ 387,409 Negotiable orders of withdrawal (NOW) and interest-bearing checking 897,575 573,927 Savings and money market 1,734,916 1,398,345 Certificates of deposit 782,601 1,048,552 Total deposits $ 4,121,164 $ 3,408,233
Interest Expense on Deposits	Interest expense on deposit accounts is summarized for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 NOW and interest-bearing checking, savings, and money market $ 2,023 $ 5,281 $ 8,990 $ 15,452 Certificates of deposit 3,620 5,235 13,405 15,860 Total interest expense on deposit accounts $ 5,643 $ 10,516 $ 22,395 $ 31,312

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Stock Options Outstanding	The following table is a summary of the Company’s stock options outstanding as of September 30, 2020, and changes therein during the nine 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, 2019 2,227,193 $ 4.01 $ 13.93 4.96 Exercised (13,000) 3.93 13.38 — Outstanding - September 30, 2020 2,214,193 4.01 13.94 4.21 Exercisable - September 30, 2020 2,189,114 4.00 13.91 4.20
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 September 30, 2020, and changes therein during the nine months then ended. Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2019 71,102 $ 15.36 Granted 103,581 15.81 Vested (63,100) 14.97 Forfeited (1,225) 15.81 Non-vested at September 30, 2020 110,358 16.00

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Significant Fair Value of Assets and Liabilities Measured on Recurring and Non Recurring Basis	Fair Value Measurements at September 30, 2020 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 $ 3,170 $ — $ 3,170 $ — Mortgage-backed securities: Pass-through certificates: GSE $ 312,051 $ — $ 312,051 $ — REMICs: GSE 753,955 — 753,955 — Non-GSE 6 — 6 — 1,069,182 — 1,069,182 — Other debt securities Municipal bonds 229 — 229 — Corporate bonds 101,175 — 101,175 — Asset-backed securities 844 — 844 — 102,248 — 102,248 — Total debt securities available-for-sale 1,171,430 — 1,171,430 — Trading securities 10,993 10,993 — — Equity securities 4,502 4,502 — — Total $ 1,186,925 $ 15,495 $ 1,171,430 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 6,052 $ — $ — $ 6,052 Multifamily 19 — — 19 Home equity and lines of credit 29 — — 29 Total impaired real estate loans 6,100 — — 6,100 Commercial and industrial loans 13 — — 13 Total $ 6,113 $ — $ — $ 6,113 Fair Value Measurements at December 31, 2019 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: Mortgage-backed securities: Pass-through certificates: GSE $ 329,407 $ — $ 329,407 $ — REMICs: GSE 643,667 — 643,667 — Non-GSE 53 — 53 — 973,127 — 973,127 — Other debt securities Municipal bonds 299 — 299 — Corporate bonds 164,926 — 164,926 — 165,225 — 165,225 — Total debt securities available-for-sale 1,138,352 — 1,138,352 — Trading securities 11,222 11,222 — — Equity securities 250 250 — — Total $ 1,149,824 $ 11,472 $ 1,138,352 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 4,871 $ — $ — $ 4,871 Multifamily 26 — — 26 Home equity and lines of credit 30 — — 30 Total impaired real estate loans 4,927 — — 4,927 Commercial and industrial loans 15 — — 15 Total $ 4,942 $ — $ — $ 4,942
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 September 30, 2020, and December 31, 2019 (dollars in thousands): Fair Value Valuation Methodology Unobservable Inputs Range of Inputs September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019 Impaired loans $ 6,113 $ 4,942 Appraisals Discount for costs to sell 7.0% 7.0% Discount for quick sale 10.0% 10.0% Discounted cash flows Interest rates 4.13% to 6.25% 4.13% to 6.25%
Estimated Fair Values of Significant Financial Instruments	The estimated fair value of the Company’s financial instruments at September 30, 2020, and December 31, 2019, is presented in the following tables (in thousands): September 30, 2020 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 350,839 $ 350,839 $ — $ — $ 350,839 Trading securities 10,993 10,993 — — 10,993 Debt securities available-for-sale 1,171,430 — 1,171,430 — 1,171,430 Debt securities held-to-maturity 8,106 — 8,475 — 8,475 Equity securities 4,502 4,502 — — 4,502 Federal Home Loan Bank of New York stock, at cost 29,766 — 29,766 — 29,766 Net loans held-for-investment 3,692,901 — — 3,748,211 3,748,211 Derivative assets 1,863 — 1,863 — 1,863 Financial liabilities: Deposits $ 4,121,164 $ — $ 4,128,474 $ — $ 4,128,474 Borrowed funds 616,905 — 637,760 — 637,760 Advance payments by borrowers for taxes and insurance 17,329 — 17,329 — 17,329 Derivative liabilities 1,868 — 1,868 — 1,868 December 31, 2019 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 147,818 $ 147,818 $ — $ — $ 147,818 Trading securities 11,222 11,222 — — 11,222 Debt securities available-for-sale 1,138,352 — 1,138,352 — 1,138,352 Debt securities held-to-maturity 8,762 — 8,886 — 8,886 Equity securities (1) 250 250 — 250 Federal Home Loan Bank of New York stock, at cost 39,575 — 39,575 — 39,575 Net loans held-for-investment 3,408,378 — — 3,482,804 3,482,804 Derivative assets 79 — 79 — 79 Financial liabilities: Deposits $ 3,408,233 $ — $ 3,412,414 $ — $ 3,412,414 Borrowed funds 857,004 — 862,980 — 862,980 Advance payments by borrowers for taxes and insurance 44,069 — 44,069 — 44,069 Derivative liabilities 79 — 79 — 79 (1) Excludes investments measured at net asset value in the amount of $3.1 million at December 31, 2019, which has not been classified in the fair value hierarchy.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2020
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 September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Net income available to common stockholders $ 8,582 $ 13,139 $ 23,926 $ 30,114 Weighted average shares outstanding-basic 50,707,691 46,631,008 48,131,005 46,808,188 Effect of non-vested restricted stock and stock options outstanding 12,112 348,206 79,276 370,502 Weighted average shares outstanding-diluted 50,719,803 46,979,214 48,210,281 47,178,690 Earnings per share-basic $ 0.17 $ 0.28 $ 0.50 $ 0.64 Earnings per share-diluted $ 0.17 $ 0.28 $ 0.50 $ 0.64 Anti-dilutive shares 2,287,010 176,944 1,868,511 700,512

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Lease, Cost	Supplemental lease information at or for the nine months ended September 30, 2020, and September 30, 2019 is as follows (dollars in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Operating lease cost $ 2,073 $ 1,551 $ 4,935 $ 4,568 Variable lease cost 878 663 2,378 2,152 Net lease cost $ 2,951 $ 2,214 $ 7,313 $ 6,720 Cash paid for amounts included in measurement of operating lease liabilities $ 2,111 $ 1,528 $ 5,180 $ 4,368 Right-of-use assets obtained in exchange for new operating lease liabilities $ — $ — $ 3,028 $ 1,013 Weighted average remaining lease term 12.39 years 12.68 years Weighted average discount rate 3.55 % 3.61 %
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 2020 $ 1,700 2021 6,555 2022 5,959 2023 5,942 2024 5,562 Thereafter 35,873 Total lease payments 61,591 Less: imputed interest 13,501 Present value of lease liabilities $ 48,090

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Sep. 30, 2020
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 September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Fees and service charges for customer services: Service charges $ 565 $ 864 $ 1,674 $ 2,458 ATM and card interchange fees 351 343 930 983 Investment fees 93 79 191 192 Total fees and service charges for customer services 1,009 1,286 2,795 3,633 Income on bank owned life insurance (1) 894 3,268 2,635 5,071 Gains on available-for-sale debt securities, net (1) 45 123 105 337 Gains (losses) on trading securities, net (1) 763 28 397 1,457 Gains on sale of loans (1) — — 665 — Swap income (1) 307 — 691 — Other 4 28 81 115 Total non-interest income $ 3,022 $ 4,733 $ 7,369 $ 10,613 (1) Not in scope of Topic 606

Consolidated Financial Statem_3

Consolidated Financial Statements - Narrative (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020USD ($)loan
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
Loan modification program, cumulative payment deferral period	180 days
Loans	$ 105,600
COVID-19
Unusual or Infrequent Item, or Both [Line Items]
Number of loans approved | loan	1,000
Loans	$ 118,500
Loan processing fee	5,300
Loan processing fee recognized as earnings	$ 818
COVID-19 | Victory
Unusual or Infrequent Item, or Both [Line Items]
Number of loans approved | loan	395
Loans	$ 30,000

Business Combinations - Additio

Business Combinations - Additional Information (Details) $ in Thousands	Jul. 01, 2020USD ($)loanshares	Sep. 30, 2020USD ($)	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Total assets		$ 5,588,840	$ 5,588,840	$ 5,055,302
Net loans held-for-investment		3,692,901	3,692,901	3,408,378
Deposits		4,121,164	4,121,164	$ 3,408,233
Victory
Business Acquisition [Line Items]
Total assets	$ 403,000
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
Merger-related expenses		$ 3,900	$ 4,300

Business Combinations - Fair Va

Business Combinations - Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jul. 01, 2020	Dec. 31, 2019
Liabilities assumed:
Goodwill	$ 41,594		$ 38,411
Victory
Business Acquisition [Line Items]
Total Purchase Price		$ 41,447
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		$ 3,183

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	$ 7,557
Contractual cash flows not expected to be collected (non-accretable discount)	3,213
Expected cash flows to be collected at acquisition	4,344
Interest component of expected cash flows (accretable yield)	(572)
Fair value of acquired loans	$ 3,772

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	Sep. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 1,151,568	$ 1,131,970
Gross unrealized gains	20,332	9,374
Gross unrealized losses	470	2,992
Debt securities available-for-sale	1,171,430	1,138,352
U.S. Government Agency Securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	3,168
Gross unrealized gains	2
Gross unrealized losses	0
Debt securities available-for-sale	3,170
Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	1,047,483	967,949
Gross unrealized gains	18,982	8,157
Gross unrealized losses	453	2,979
Debt securities available-for-sale	1,066,012	973,127
Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	100,917	164,021
Gross unrealized gains	1,348	1,217
Gross unrealized losses	17	13
Debt securities available-for-sale	102,248	165,225
GSE | Pass-through Certificates
Debt Securities, Available-for-sale [Line Items]
Amortized cost	300,937	324,080
Gross unrealized gains	11,297	6,081
Gross unrealized losses	183	754
Debt securities available-for-sale	312,051	329,407
GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	746,540	643,816
Gross unrealized gains	7,685	2,076
Gross unrealized losses	270	2,225
Debt securities available-for-sale	753,955	643,667
Non-GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	6	53
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Debt securities available-for-sale	6	53
Municipal bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	228	296
Gross unrealized gains	1	3
Gross unrealized losses	0	0
Debt securities available-for-sale	229	299
Corporate bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	99,855	163,725
Gross unrealized gains	1,337	1,214
Gross unrealized losses	17	13
Debt securities available-for-sale	101,175	$ 164,926
Asset-backed securities | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	834
Gross unrealized gains	10
Gross unrealized losses	0
Debt securities available-for-sale	$ 844

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	Sep. 30, 2020	Dec. 31, 2019
Amortized cost
Amortized cost	$ 1,151,568	$ 1,131,970
Estimated fair value
Estimated fair value	1,171,430	$ 1,138,352
Other Than Mortgage Backed Securities
Amortized cost
Due in one year or less	37,140
Due after one year through five years	62,943
Due after five years through ten years	3,168
Due after ten years	834
Amortized cost	104,085
Estimated fair value
Due in one year or less	37,313
Due after one year through five years	64,091
Due after five years through ten years	3,170
Due after ten years	844
Estimated fair value	$ 105,418

Debt Securities Available-for_5

Debt Securities Available-for-Sale - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020USD ($)securityloan	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)securityloan	Sep. 30, 2019USD ($)
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, restricted	$ 537,000,000		$ 537,000,000
Proceeds from sales and calls of debt securities available-for-sale	4,500,000	$ 20,000,000	17,121,000	$ 54,438,000
Debt securities, available-for-sale, realized gain	48,000	123,000	122,000	337,000
Debt securities, available-for-sale, realized loss	3,000	0	17,000	0
Debt securities, trading, realized gain (loss)	763,000,000	28,000	397,000	1,500,000
Other-than-temporary impairment loss, debt securities, available for sale, recognized in earnings	$ 0	$ 0	$ 0	$ 0
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	11		11
Number of debt securities, unrealized loss position less than 12 months | security	19		19
Real Estate Mortgage Investment Conduits (REMICs) | GSE | Non Pass Through
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position longer than 12 months | loan	1		1
Number of debt securities, unrealized loss position less than 12 months | security	57		57
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	1		1

Debt Securities Available-for_6

Debt Securities Available-for-Sale - Gross Unrealized Losses on Mortgage-Backed Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	$ 457	$ 975
Estimated fair value, less than 12 months	117,406	201,038
Unrealized losses, 12 months or more	13	2,017
Estimated fair value, 12 months or more	2,754	125,378
Unrealized losses, total	470	2,992
Estimated fair value, total	120,160	326,416
GSE | Pass-through Certificates
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	172	25
Estimated fair value, less than 12 months	33,945	3,404
Unrealized losses, 12 months or more	11	729
Estimated fair value, 12 months or more	428	55,184
Unrealized losses, total	183	754
Estimated fair value, total	34,373	58,588
GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	268	950
Estimated fair value, less than 12 months	79,194	197,634
Unrealized losses, 12 months or more	2	1,275
Estimated fair value, 12 months or more	2,326	54,555
Unrealized losses, total	270	2,225
Estimated fair value, total	81,520	252,189
Non-GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months		0
Estimated fair value, less than 12 months		0
Unrealized losses, 12 months or more		0
Estimated fair value, 12 months or more		53
Unrealized losses, total		0
Estimated fair value, total		53
Corporate bonds | Other debt securities
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	17	0
Estimated fair value, less than 12 months	4,267	0
Unrealized losses, 12 months or more	0	13
Estimated fair value, 12 months or more	0	15,586
Unrealized losses, total	17	13
Estimated fair value, total	$ 4,267	$ 15,586

Debt Securities Held-to-Matur_3

Debt Securities Held-to-Maturity - Mortgage Backed Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 8,106	$ 8,762
Gross Unrealized Gains	369	129
Gross Unrealized Losses	0	5
Estimated Fair Value	8,475	8,886
Mortgage Backed Securities Pass Through Certificates
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	8,106	8,762
Gross Unrealized Gains	369	129
Gross Unrealized Losses	0	5
Estimated Fair Value	$ 8,475	$ 8,886

Debt Securities Held-to-Matur_4

Debt Securities Held-to-Maturity - Held-to-Maturity Securities in a Continuous Unrealized Loss Positions (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020USD ($)security	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)security	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities sold			$ 0	$ 0
Held-to-maturity securities pledged to secure borrowings and deposits	$ 6,800,000		$ 6,800,000
Held-to-maturity securities unrealized loss position | security	0		0
Unrealized losses
Less than 12 months					$ 0
12 months or more					5,000
Total					5,000
Estimated fair value
Less than 12 months					0
12 months or more					378,000
Total					378,000
Other-than-temporary impairment charge recognized in earnings	$ 0	$ 0	$ 0	$ 0
Mortgage Backed Securities Pass Through Certificates
Unrealized losses
Less than 12 months					0
12 months or more					5,000
Total					5,000
Estimated fair value
Less than 12 months					0
12 months or more					378,000
Total					$ 378,000

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	$ 4,502	$ 3,341
Equity securities without readily determinable fair value		3,100
Money Market Funds
Debt and Equity Securities, FV-NI [Line Items]
Equity securities, fair value	$ 4,500	250
SBA Loan Fund
Debt and Equity Securities, FV-NI [Line Items]
Equity securities without readily determinable fair value		$ 3,100

Loans - Net Loans Held-for-Inve

Loans - Net Loans Held-for-Investment (Details) - USD ($)	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Loans held-for-investment, net	$ 3,731,617,000		$ 3,437,085,000
Allowance for loan losses	(38,716,000)	$ (38,520,000)	(28,707,000)	$ (28,066,000)	$ (27,832,000)	$ (27,497,000)
Net loans held-for-investment	3,692,901,000		3,408,378,000
Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	164,300,000		47,411,000
Deferred loan cost, net	3,473,000		7,614,000
Loans held-for-investment, net	3,215,509,000		2,987,067,000
Allowance for loan losses	(37,741,000)	(37,541,000)	(27,783,000)	(26,921,000)	(26,687,000)	(26,487,000)
Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	497,640,000		432,653,000
Loans held-for-investment, net	497,640,000		432,653,000
Allowance for loan losses	(186,000)	(190,000)	(135,000)	(135,000)	(135,000)	0
Purchased Credit-Impaired
Loans and Leases Receivable Disclosure [Line Items]
Loans held-for-investment, net	18,468,000		17,365,000
Allowance for loan losses	(789,000)	(789,000)	(789,000)	(1,010,000)	(1,010,000)	(1,010,000)
Real Estate | Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	3,047,736,000		2,932,042,000
Real Estate | Originated | Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,285,074,000		2,196,407,000
Loans held-for-investment, net	2,288,402,000		2,199,734,000
Allowance for loan losses	(26,647,000)	(27,243,000)	(20,203,000)	(19,403,000)	(18,384,000)	(18,084,000)
Real Estate | Originated | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	545,826,000		528,681,000
Loans held-for-investment, net	546,421,000		529,287,000
Allowance for loan losses	(7,407,000)	(6,509,000)	(4,756,000)	(4,869,000)	(5,331,000)	(5,630,000)
Real Estate | Originated | One-to-Four Family
Loans and Leases Receivable Disclosure [Line Items]
Loans	74,912,000		83,742,000
Loans held-for-investment, net	76,361,000		85,355,000
Allowance for loan losses	(222,000)	(272,000)	(180,000)	(217,000)	(234,000)	(342,000)
Real Estate | Originated | Home equity and lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Loans	86,855,000		84,928,000
Loans held-for-investment, net	88,859,000		86,848,000
Allowance for loan losses	(427,000)	(558,000)	(317,000)	(314,000)	(417,000)	(291,000)
Real Estate | Originated | Construction and Land
Loans and Leases Receivable Disclosure [Line Items]
Loans	55,069,000		38,284,000
Loans held-for-investment, net	55,098,000		38,303,000
Allowance for loan losses	(1,135,000)	(937,000)	(536,000)	(392,000)	(584,000)	(463,000)
Real Estate | Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	446,200,000		423,964,000
Real Estate | Acquired Loans | Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Loans	90,927,000		108,417,000
Real Estate | Acquired Loans | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	175,522,000		113,027,000
Real Estate | Acquired Loans | One-to-Four Family
Loans and Leases Receivable Disclosure [Line Items]
Loans	146,218,000		187,975,000
Real Estate | Acquired Loans | Home equity and lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Loans	9,690,000		12,008,000
Real Estate | Acquired Loans | Construction and Land
Loans and Leases Receivable Disclosure [Line Items]
Loans	23,843,000		2,537,000
Commercial and Industrial | Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	162,530,000		45,328,000
Loans held-for-investment, net	158,598,000		45,456,000
Allowance for loan losses	(1,774,000)	(1,846,000)	(1,640,000)	(1,599,000)	(1,591,000)	(1,569,000)
Commercial and Industrial | Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	51,117,000		8,689,000
Other | Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,770,000		2,083,000
Loans held-for-investment, net	1,770,000		2,084,000
Allowance for loan losses	(129,000)	$ (176,000)	(151,000)	$ (127,000)	$ (146,000)	$ (108,000)
Other | Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	323,000		0
Paycheck Protection Program | Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	115,200,000		$ 0
Paycheck Protection Program | Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 30,000,000

Loans - Narrative, PCI Loans (D

Loans - Narrative, PCI Loans (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable held-for-sale, amount	$ 0	$ 0
PCI loans	$ 3,731,617,000	$ 3,437,085,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	23.00%	29.00%
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	41.00%	42.00%
Purchased Credit-Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	$ 18,468,000	$ 17,365,000

Loans - Summary of Accretable Y

Loans - Summary of Accretable Yield (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accretable Yield Movement Schedule [Roll Forward]
Balance at the beginning of period	$ 15,566	$ 19,794	$ 17,086	$ 21,846
Acquisition	572	0	572	0
Accretion into interest income	(648)	(1,059)	(2,168)	(3,111)
Balance at end of period	$ 15,490	$ 18,735	$ 15,490	$ 18,735

Loans - Amount of Loans Receiva

Loans - Amount of Loans Receivable Held-for-Investment and Related Allowances Per Loan Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Allowance for loan losses:
Beginning Balance	$ 38,520	$ 27,832	$ 28,707	$ 27,497
Charge-offs	(12)	(514)	(703)	(838)
Recoveries	43	2,048	443	2,157
Provisions (credit)	165	(1,300)	10,269	(750)
Ending Balance	38,716	28,066	38,716	28,066
Ending balance: individually evaluated for impairment	308		308		$ 142
Ending balance: collectively evaluated for impairment	38,408		38,408		28,565
Loans, net:
Loans held-for-investment, net	3,731,617		3,731,617		3,437,085
Ending balance: individually evaluated for impairment	19,488		19,488		20,957
PPP loans not evaluated for impairment	145,152		145,152
Ending balance: collectively evaluated for impairment	3,566,977		3,566,977		3,416,128
Originated
Allowance for loan losses:
Beginning Balance	37,541	26,687	27,783	26,487
Charge-offs	(7)	(514)	(265)	(726)
Recoveries	40	1,895	428	1,993
Provisions (credit)	167	(1,147)	9,795	(833)
Ending Balance	37,741	26,921	37,741	26,921
Ending balance: individually evaluated for impairment	122		122		7
Ending balance: collectively evaluated for impairment	37,619		37,619		27,776
Loans, net:
Loans held-for-investment, net	3,215,509		3,215,509		2,987,067
Ending balance: individually evaluated for impairment	13,678		13,678		16,177
PPP loans not evaluated for impairment	115,157		115,157
Ending balance: collectively evaluated for impairment	3,086,674		3,086,674		2,970,890
Purchased Credit-Impaired
Allowance for loan losses:
Beginning Balance	789	1,010	789	1,010
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credit)	0	0	0	0
Ending Balance	789	1,010	789	1,010
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	789		789		789
Loans, net:
Loans held-for-investment, net	18,468		18,468		17,365
Ending balance: individually evaluated for impairment	0		0		0
PPP loans not evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	18,468		18,468		17,365
Acquired Loans
Allowance for loan losses:
Beginning Balance	190	135	135	0
Charge-offs	(5)	0	(438)	(112)
Recoveries	3	153	15	164
Provisions (credit)	(2)	(153)	474	83
Ending Balance	186	135	186	135
Ending balance: individually evaluated for impairment	186		186		135
Ending balance: collectively evaluated for impairment	0		0		0
Loans, net:
Loans held-for-investment, net	497,640		497,640		432,653
Ending balance: individually evaluated for impairment	5,810		5,810		4,780
PPP loans not evaluated for impairment	29,995		29,995
Ending balance: collectively evaluated for impairment	461,835		461,835		427,873
Real Estate | Commercial | Originated
Allowance for loan losses:
Beginning Balance	6,509	5,331	4,756	5,630
Charge-offs	(7)	(514)	(171)	(520)
Recoveries	13	60	396	85
Provisions (credit)	892	(8)	2,426	(326)
Ending Balance	7,407	4,869	7,407	4,869
Ending balance: individually evaluated for impairment	116		116		0
Ending balance: collectively evaluated for impairment	7,291		7,291		4,756
Loans, net:
Loans held-for-investment, net	546,421		546,421		529,287
Ending balance: individually evaluated for impairment	11,523		11,523		13,226
PPP loans not evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	534,898		534,898		516,061
Real Estate | One-to-Four Family | Originated
Allowance for loan losses:
Beginning Balance	272	234	180	342
Charge-offs	0	0	0	0
Recoveries	0	0	26	72
Provisions (credit)	(50)	(17)	16	(197)
Ending Balance	222	217	222	217
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	222		222		180
Loans, net:
Loans held-for-investment, net	76,361		76,361		85,355
Ending balance: individually evaluated for impairment	1,423		1,423		1,841
PPP loans not evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	74,938		74,938		83,514
Real Estate | Construction and Land | Originated
Allowance for loan losses:
Beginning Balance	937	584	536	463
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credit)	198	(192)	599	(71)
Ending Balance	1,135	392	1,135	392
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	1,135		1,135		536
Loans, net:
Loans held-for-investment, net	55,098		55,098		38,303
Ending balance: individually evaluated for impairment	0		0		0
PPP loans not evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	55,098		55,098		38,303
Real Estate | Multifamily | Originated
Allowance for loan losses:
Beginning Balance	27,243	18,384	20,203	18,084
Charge-offs	0	0	0	0
Recoveries	0	1,818	0	1,818
Provisions (credit)	(596)	(799)	6,444	(499)
Ending Balance	26,647	19,403	26,647	19,403
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	26,647		26,647		20,203
Loans, net:
Loans held-for-investment, net	2,288,402		2,288,402		2,199,734
Ending balance: individually evaluated for impairment	629		629		997
PPP loans not evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	2,287,773		2,287,773		2,198,737
Real Estate | Home equity and lines of credit | Originated
Allowance for loan losses:
Beginning Balance	558	417	317	291
Charge-offs	0	0	0	0
Recoveries	26	0	0	0
Provisions (credit)	(157)	(103)	110	23
Ending Balance	427	314	427	314
Ending balance: individually evaluated for impairment	3		3		3
Ending balance: collectively evaluated for impairment	424		424		314
Loans, net:
Loans held-for-investment, net	88,859		88,859		86,848
Ending balance: individually evaluated for impairment	49		49		55
PPP loans not evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	88,810		88,810		86,793
Commercial and Industrial | Originated
Allowance for loan losses:
Beginning Balance	1,846	1,591	1,640	1,569
Charge-offs	0	0	(94)	(83)
Recoveries	1	17	6	17
Provisions (credit)	(73)	(9)	222	96
Ending Balance	1,774	1,599	1,774	1,599
Ending balance: individually evaluated for impairment	3		3		4
Ending balance: collectively evaluated for impairment	1,771		1,771		1,636
Loans, net:
Loans held-for-investment, net	158,598		158,598		45,456
Ending balance: individually evaluated for impairment	54		54		58
PPP loans not evaluated for impairment	115,157		115,157
Ending balance: collectively evaluated for impairment	43,387		43,387		45,398
Other | Originated
Allowance for loan losses:
Beginning Balance	176	146	151	108
Charge-offs	0	0	0	(123)
Recoveries	0	0	0	1
Provisions (credit)	(47)	(19)	(22)	141
Ending Balance	129	$ 127	129	$ 127
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	129		129		151
Loans, net:
Loans held-for-investment, net	1,770		1,770		2,084
Ending balance: individually evaluated for impairment	0		0		0
PPP loans not evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	$ 1,770		$ 1,770		$ 2,084

Loans - Narrative, Loan-to-Valu

Loans - Narrative, Loan-to-Value Ratios (Details)	Sep. 30, 2020
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan to value ratio, less than	35.00%
One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan to value ratio, less than	60.00%

Loans - Investment of Originate

Loans - Investment of Originated Loans Held-for-Investment by Loan Type and Credit Quality Indicator (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	$ 3,215,509	$ 2,987,067
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	3,173,831	2,968,346
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	7,244	2,850
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	34,434	15,871
Real Estate | Multifamily | Less Than 35% LTV
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	248,343	233,251
Real Estate | Multifamily | Less Than 35% LTV | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	247,764	232,950
Real Estate | Multifamily | Less Than 35% LTV | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	0	0
Real Estate | Multifamily | Less Than 35% LTV | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	579	301
Real Estate | Multifamily | Equal to or Greater than 35% LTV
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	2,040,059	1,966,483
Real Estate | Multifamily | Equal to or Greater than 35% LTV | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	2,031,541	1,960,984
Real Estate | Multifamily | Equal to or Greater than 35% LTV | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	756	296
Real Estate | Multifamily | Equal to or Greater than 35% LTV | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	7,762	5,203
Real Estate | Commercial | Less Than 35% LTV
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	92,990	79,855
Real Estate | Commercial | Less Than 35% LTV | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	88,443	79,485
Real Estate | Commercial | Less Than 35% LTV | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	77	370
Real Estate | Commercial | Less Than 35% LTV | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	4,470	0
Real Estate | Commercial | Equal to or Greater than 35% LTV
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	453,431	449,432
Real Estate | Commercial | Equal to or Greater than 35% LTV | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	428,828	440,065
Real Estate | Commercial | Equal to or Greater than 35% LTV | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	5,104	1,092
Real Estate | Commercial | Equal to or Greater than 35% LTV | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	19,499	8,275
Real Estate | One-to-Four Family | Less Than 60% LTV
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	54,810	55,060
Real Estate | One-to-Four Family | Less Than 60% LTV | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	52,496	52,886
Real Estate | One-to-Four Family | Less Than 60% LTV | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	605	777
Real Estate | One-to-Four Family | Less Than 60% LTV | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	1,709	1,397
Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	21,551	30,295
Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	21,528	29,967
Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	0	0
Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	23	328
Real Estate | Construction and Land
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	55,098	38,303
Real Estate | Construction and Land | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	55,098	38,303
Real Estate | Construction and Land | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	0	0
Real Estate | Construction and Land | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	0	0
Real Estate | Home Equity and Lines of Credit
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	88,859	86,848
Real Estate | Home Equity and Lines of Credit | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	88,507	86,547
Real Estate | Home Equity and Lines of Credit | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	71	14
Real Estate | Home Equity and Lines of Credit | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	281	287
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	158,598	45,456
Commercial and Industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	157,856	45,075
Commercial and Industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	631	301
Commercial and Industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	111	80
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	1,770	2,084
Other | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	1,770	2,084
Other | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	0	0
Other | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated loans held-for-investment, net	$ 0	$ 0

Loans - Narrative, Loans (Detai

Loans - Narrative, Loans (Details) - USD ($)	3 Months Ended	9 Months Ended
	Mar. 31, 2020	Sep. 30, 2020	Dec. 31, 2019
Receivables [Abstract]
Investment in non accrual loans		$ 8,900,000	$ 9,400,000
Criteria days for delinquent status	90 days	90 days
Impairment of loans		$ 6,500,000	6,800,000
Principal balance of loans on non accrual status, less then		500,000
Loans on non accrual status with principal balances below threshold definition of an impaired loan		2,300,000	2,600,000
Loans held-for-sale, non-accrual		0	0
90 days or more past due and accruing		2,100,000	518,000
Impaired loans not written down		$ 13,100,000	$ 15,900,000

Loans - PCI Loan Pools (Details

Loans - PCI Loan Pools (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	$ 2,100	$ 518
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,867	9,433
90 Days or More Past Due and Accruing	2,063	518
Total Non-Performing Loans	10,930	9,951
Non-Performing Loans | Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,874	3,094
90 Days or More Past Due and Accruing	883	114
Total Non-Performing Loans	2,757	3,208
Non-Performing Loans | Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	937
90 Days or More Past Due and Accruing	0
Total Non-Performing Loans	937
Non-Performing Loans | Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		2,416
90 Days or More Past Due and Accruing		0
Total Non-Performing Loans		2,416
Non-Performing Loans | Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	475
90 Days or More Past Due and Accruing	398
Total Non-Performing Loans	873
Non-Performing Loans | Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	498	522
90 Days or More Past Due and Accruing	398	114
Total Non-Performing Loans	896	636
Non-Performing Loans | Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	289
90 Days or More Past Due and Accruing	485
Total Non-Performing Loans	774
Non-Performing Loans | Loans Held For Investment | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	150	156
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	150	156
Non-Performing Loans | Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,993	6,339
90 Days or More Past Due and Accruing	1,180	404
Total Non-Performing Loans	8,173	6,743
Non-Performing Loans | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,116	5,506
90 Days or More Past Due and Accruing	401	253
Total Non-Performing Loans	6,517	5,759
Non-Performing Loans | Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	421	368
90 Days or More Past Due and Accruing	762	151
Total Non-Performing Loans	1,183	519
Non-Performing Loans | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	428	437
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	428	437
Non-Performing Loans | Loans acquired | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	28	28
90 Days or More Past Due and Accruing	14	0
Total Non-Performing Loans	42	28
Non-Performing Loans | Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
90 Days or More Past Due and Accruing	3
Total Non-Performing Loans	3
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	937
90 Days or More Past Due and Accruing	0
Total Non-Performing Loans	937
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		2,416
90 Days or More Past Due and Accruing		0
Total Non-Performing Loans		2,416
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	475	493
90 Days or More Past Due and Accruing	398	114
Total Non-Performing Loans	873	607
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	23	29
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	23	29
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1
90 Days or More Past Due and Accruing	485
Total Non-Performing Loans	486
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	288
90 Days or More Past Due and Accruing	0
Total Non-Performing Loans	288
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	150	156
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	150	156
Non-Performing Loans | Substandard | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,850	5,239
90 Days or More Past Due and Accruing	134	187
Total Non-Performing Loans	5,984	5,426
Non-Performing Loans | Substandard | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	266	267
90 Days or More Past Due and Accruing	0	66
Total Non-Performing Loans	266	333
Non-Performing Loans | Substandard | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	328	275
90 Days or More Past Due and Accruing	6	151
Total Non-Performing Loans	334	426
Non-Performing Loans | Substandard | Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	93	93
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	93	93
Non-Performing Loans | Substandard | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	389	397
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	389	397
Non-Performing Loans | Substandard | Loans acquired | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	39	40
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	39	40
Non-Performing Loans | Substandard | Loans acquired | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	28	28
90 Days or More Past Due and Accruing	14	0
Total Non-Performing Loans	42	28
Non-Performing Loans | Substandard | Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
90 Days or More Past Due and Accruing	3
Total Non-Performing Loans	3
Non-Performing Loans | Pass | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
90 Days or More Past Due and Accruing	267
Total Non-Performing Loans	267
Non-Performing Loans | Pass | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
90 Days or More Past Due and Accruing	536
Total Non-Performing Loans	536
Non-Performing Loans | Special Mention | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
90 Days or More Past Due and Accruing	220
Total Non-Performing Loans	220
Non-Performing Loans | 0-29 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,284	3,839
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	483	0
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	398
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	421	0
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	61	0
Non-Performing Loans | 0-29 Days Past Due | Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,801	3,839
Non-Performing Loans | 0-29 Days Past Due | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,762	3,609
Non-Performing Loans | 0-29 Days Past Due | Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	190
Non-Performing Loans | 0-29 Days Past Due | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	39	40
Non-Performing Loans | 0-29 Days Past Due | Loans acquired | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 0-29 Days Past Due | Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	398	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	23	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	61	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,762	3,530
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	79
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	190
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	39	40
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 0-29 Days Past Due | Pass | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 0-29 Days Past Due | Pass | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 0-29 Days Past Due | Special Mention | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,024	493
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	377	96
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	29
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	288
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	89	67
Non-Performing Loans | 30-89 Days Past Due | Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	647	397
Non-Performing Loans | 30-89 Days Past Due | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	647	0
Non-Performing Loans | 30-89 Days Past Due | Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 30-89 Days Past Due | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	397
Non-Performing Loans | 30-89 Days Past Due | Loans acquired | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 30-89 Days Past Due | Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	29
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	288
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	89	67
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	568	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	79	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	397
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due | Pass | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due | Pass | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 30-89 Days Past Due | Special Mention | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,559	5,101
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,014	2,998
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	937
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		2,416
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	77
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	77	493
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	89
Non-Performing Loans | 90 Days or More Past Due | Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,545	2,103
Non-Performing Loans | 90 Days or More Past Due | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,707	1,897
Non-Performing Loans | 90 Days or More Past Due | Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	421	178
Non-Performing Loans | 90 Days or More Past Due | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	389	0
Non-Performing Loans | 90 Days or More Past Due | Loans acquired | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	28	28
Non-Performing Loans | 90 Days or More Past Due | Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	937
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		2,416
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	77	493
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	89
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,520	1,709
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	187	188
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	328	85
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	93	93
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	389	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | Home Equity and Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	28	$ 28
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 90 Days or More Past Due | Pass | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 90 Days or More Past Due | Pass | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Non-Performing Loans | 90 Days or More Past Due | Special Mention | Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 0

Loans - Loans Held-for-Investme

Loans - Loans Held-for-Investment by Performing and Non-Performing Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	$ 3,215,509	$ 2,987,067
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	3,173,831	2,968,346
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	7,244	2,850
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	34,434	15,871
Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	54,810	55,060
Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	21,551	30,295
Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	52,496	52,886
Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	21,528	29,967
Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	605	777
Real Estate | One-to-Four Family | Special Mention | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	0	0
Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	1,709	1,397
Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	23	328
Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	55,098	38,303
Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	55,098	38,303
Real Estate | Construction and Land | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	0	0
Real Estate | Construction and Land | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	0	0
Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	248,343	233,251
Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	2,040,059	1,966,483
Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	247,764	232,950
Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	2,031,541	1,960,984
Real Estate | Multifamily | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	0	0
Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	756	296
Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	579	301
Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	7,762	5,203
Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	88,859	86,848
Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	88,507	86,547
Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	71	14
Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	281	287
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	158,598	45,456
Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	157,856	45,075
Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	631	301
Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	111	80
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	1,770	2,084
Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	1,770	2,084
Other | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	0	0
Other | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	0	0
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	8,867	9,433
Non-Performing Loans	10,930	9,951
Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	3,215,509	2,987,067
Loans Held For Investment | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	546,421	529,287
Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	92,990	79,855
Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	453,431	449,432
Loans Held For Investment | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	88,443	79,485
Loans Held For Investment | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	428,828	440,065
Loans Held For Investment | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	77	370
Loans Held For Investment | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	5,104	1,092
Loans Held For Investment | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	4,470
Loans Held For Investment | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	19,499	8,275
Loans Held For Investment | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	76,361	85,355
Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	54,810	55,060
Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	21,551	30,295
Loans Held For Investment | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	52,496	52,886
Loans Held For Investment | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	21,528	29,967
Loans Held For Investment | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	605	777
Loans Held For Investment | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	1,709	1,397
Loans Held For Investment | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	23	328
Loans Held For Investment | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	55,098	38,303
Loans Held For Investment | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	55,098	38,303
Loans Held For Investment | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	2,288,402	2,199,734
Loans Held For Investment | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	248,343	233,251
Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	2,040,059	1,966,483
Loans Held For Investment | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	247,764	232,950
Loans Held For Investment | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	2,031,542	1,960,984
Loans Held For Investment | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	756	296
Loans Held For Investment | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	579	301
Loans Held For Investment | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	7,761	5,203
Loans Held For Investment | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	88,859	86,848
Loans Held For Investment | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	88,507	86,547
Loans Held For Investment | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	71	14
Loans Held For Investment | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	281	287
Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	158,598	45,456
Loans Held For Investment | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	157,856	45,075
Loans Held For Investment | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	631	301
Loans Held For Investment | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	111	80
Loans Held For Investment | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net		2,084
Loans Held For Investment | Other | Other loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	1,770
Loans Held For Investment | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,212,753	2,983,859
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	545,484	526,871
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	92,990	79,855
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	452,494	447,016
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	88,443	79,485
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	428,828	440,065
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	77	370
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	5,104	1,092
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	4,470
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	18,562	5,859
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	75,465	84,719
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	53,937	54,453
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	21,528	30,266
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	52,496	52,886
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	21,528	29,967
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	605	777
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	836	790
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	299
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	55,098	38,303
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	55,098	38,303
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,287,629	2,199,734
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	248,055	233,251
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,039,574	1,966,483
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	247,764	232,950
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,031,542	1,960,984
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	756	296
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	291	301
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	7,276	5,203
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	88,709	86,692
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	88,507	86,547
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	71	14
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	131	131
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	158,598	45,456
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	157,856	45,075
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	631	301
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	111	80
Loans Held For Investment | Performing (Accruing) Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans		2,084
Loans Held For Investment | Performing (Accruing) Loans | Other | Other loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,770
Loans Held For Investment | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	2,756	3,208
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	937	2,416
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	937	2,416
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	937	2,416
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	896	636
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	873	607
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	23	29
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	873	607
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	23	29
Loans Held For Investment | Non-Performing Loans | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	773	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	288	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	485	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	288	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	485	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	150	156
Loans Held For Investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	150	156
Loans Held For Investment | Non-Performing Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans Held For Investment | Non-Performing Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans		0
Loans Held For Investment | Non-Performing Loans | Other | Other loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0
Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	497,640	432,653
Loans acquired | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	175,522	113,027
Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	59,630	37,351
Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	115,892	75,676
Loans acquired | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	53,708	35,460
Loans acquired | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	96,917	60,311
Loans acquired | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	5,076	1,188
Loans acquired | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	7,776	598
Loans acquired | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	846	703
Loans acquired | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	11,199	14,767
Loans acquired | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	146,218	187,975
Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	125,919	173,766
Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	20,299	14,209
Loans acquired | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	123,464	172,955
Loans acquired | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	20,206	14,116
Loans acquired | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	2,122	385
Loans acquired | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	333	426
Loans acquired | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	93	93
Loans acquired | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	23,843	2,537
Loans acquired | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	23,843	2,537
Loans acquired | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	90,927	108,417
Loans acquired | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	86,987	105,367
Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	3,940	3,050
Loans acquired | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	86,948	105,327
Loans acquired | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	3,551	2,653
Loans acquired | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	39	40
Loans acquired | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	389	397
Loans acquired | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	9,690	12,008
Loans acquired | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	9,274	11,892
Loans acquired | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	248
Loans acquired | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	168	116
Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	51,117	8,689
Loans acquired | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	50,824	8,689
Loans acquired | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	190
Loans acquired | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	103
Loans acquired | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net		0
Loans acquired | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	323
Loans acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	489,465	425,910
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	169,005	107,268
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	59,097	37,017
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	109,908	70,251
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	53,441	35,460
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	96,917	60,311
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	5,076	1,188
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	7,776	598
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	580	369
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	5,215	9,342
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	145,035	187,456
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	124,829	173,340
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	20,206	14,116
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	122,927	172,955
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	20,206	14,116
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,902	385
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	23,843	2,537
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	23,843	2,537
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	90,499	107,980
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	86,948	105,327
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,551	2,653
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	86,948	105,327
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,551	2,653
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	9,647	11,980
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	9,274	11,892
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	248
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	125	88
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	51,117	8,689
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	50,824	8,689
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	190
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	103
Loans acquired | Performing (Accruing) Loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans		0
Loans acquired | Performing (Accruing) Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	319
Loans acquired | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	8,175	6,743
Loans acquired | Non-Performing Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	6,517	5,759
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	533	334
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	5,984	5,425
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	267	0
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	266	334
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	5,984	5,425
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	1,183	519
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	1,090	426
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	93	93
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	537	0
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	220	0
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	333	426
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	93	93
Loans acquired | Non-Performing Loans | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	428	437
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	39	40
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	389	397
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	39	40
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	389	397
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	43	28
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	43	28
Loans acquired | Non-Performing Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired | Non-Performing Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0
Loans acquired | Non-Performing Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0
Loans acquired | Non-Performing Loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans		0
Loans acquired | Non-Performing Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	4
Total Loans Include Loans Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable, net	3,713,149	3,419,720
Total Loans Include Loans Acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,702,218	3,409,769
Total Loans Include Loans Acquired | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	10,931	9,951
0-29 Days Past Due | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,284	3,839
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,204,977	2,980,106
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	539,922	525,326
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	92,913	79,753
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	447,009	445,573
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	88,443	79,383
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	428,828	439,253
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	370
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	4,587	1,092
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	4,470
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	13,594	5,228
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	74,960	83,587
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	53,432	53,547
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	21,528	30,040
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	52,496	52,757
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	21,528	29,741
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	100	0
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	836	790
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	299
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	55,098	38,156
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	55,098	38,156
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,286,728	2,199,187
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	248,055	232,959
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,038,673	1,966,228
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	247,764	232,658
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,031,542	1,960,729
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	465	296
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	291	301
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	6,666	5,203
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	88,704	86,525
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	88,502	86,380
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	71	14
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	131	131
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	157,801	45,267
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	157,540	44,886
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	231	301
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	30	80
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans		2,058
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Other | Other loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,764
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	485,529	421,457
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	166,121	103,363
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	58,597	36,536
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	107,524	66,827
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	52,941	35,173
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	95,981	60,311
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	5,076	994
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	7,776	134
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	580	369
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,767	6,382
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	144,635	186,998
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	124,429	172,882
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	20,206	14,116
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	122,901	172,882
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	20,206	14,116
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,528	0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	23,843	2,537
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	23,843	2,537
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	90,499	107,980
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	86,948	105,327
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,551	2,653
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	86,948	105,327
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,551	2,653
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	9,225	11,930
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	9,054	11,842
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	46
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	125	88
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	50,891	8,649
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	50,635	8,649
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	190
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	66
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans		0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	315
0-29 Days Past Due | Total Loans Include Loans Acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,690,506	3,401,563
30-89 Days Past Due | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,024	493
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	7,776	3,753
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	5,562	1,545
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	77	102
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	5,485	1,443
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	102
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	812
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	77	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	517	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	4,968	631
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	505	1,132
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	505	906
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	226
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	129
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	226
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	505	777
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	147
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	147
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	901	547
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	292
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	901	255
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	292
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	255
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	291	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	610	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	5	167
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	5	167
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	797	189
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	316	189
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	400	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	81	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans		26
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Other | Other loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	6
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,936	4,453
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,884	3,905
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	500	481
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,384	3,424
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	500	287
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	936	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	194
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	464
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,448	2,960
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	400	458
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	400	458
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	26	73
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	374	385
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	422	50
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	220	50
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	202
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	226	40
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	189	40
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	37
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans		0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	4
30-89 Days Past Due | Total Loans Include Loans Acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	$ 11,712	$ 8,206

Loans - Summary of Impaired Loa

Loans - Summary of Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Recorded Investment
With No Allowance Recorded	$ 13,100	$ 15,900
Total	19,488	20,957
Unpaid Principal Balance
Total	21,938	23,132
Related Allowance	(308)	(142)
Real Estate | Commercial
Recorded Investment
Total	16,674	17,327
Unpaid Principal Balance
Total	18,526	18,916
Related Allowance	(302)	(135)
Real Estate | One-to-Four Family
Recorded Investment
Total	2,043	2,479
Unpaid Principal Balance
Total	2,170	2,595
Related Allowance	0	0
Real Estate | Multifamily
Recorded Investment
Total	668	1,038
Unpaid Principal Balance
Total	1,139	1,508
Related Allowance	0	0
Real Estate | Home Equity and Lines of Credit
Recorded Investment
Total	49	55
Unpaid Principal Balance
Total	49	55
Related Allowance	(3)	(3)
Real Estate | Home Equity and Lines of Credit | Substandard
Recorded Investment
With a Related Allowance Recorded	32	33
Unpaid Principal Balance
With a Related Allowance Recorded	32	33
Related Allowance	(3)	(3)
Real Estate | Home Equity and Lines of Credit | Pass
Recorded Investment
With No Allowance Recorded	17	22
Unpaid Principal Balance
With No Allowance Recorded	17	22
Commercial and Industrial
Recorded Investment
Total	54	58
Unpaid Principal Balance
Total	54	58
Related Allowance	(3)	(4)
Commercial and Industrial | Substandard
Recorded Investment
With No Allowance Recorded	37	39
Unpaid Principal Balance
With No Allowance Recorded	37	39
Commercial and Industrial | Special Mention
Recorded Investment
With a Related Allowance Recorded	17	19
Unpaid Principal Balance
With a Related Allowance Recorded	17	19
Related Allowance	(3)	(4)
Less Than 35% LTV | Real Estate | Commercial | Substandard
Recorded Investment
With No Allowance Recorded	79	0
Unpaid Principal Balance
With No Allowance Recorded	218	139
Less Than 35% LTV | Real Estate | Multifamily | Substandard
Recorded Investment
With No Allowance Recorded	39	40
Unpaid Principal Balance
With No Allowance Recorded	39	40
Equal to or Greater than 35% LTV | Real Estate | Commercial | Substandard
Recorded Investment
With No Allowance Recorded	8,431	10,438
With a Related Allowance Recorded	2,781	1,307
Unpaid Principal Balance
With No Allowance Recorded	8,638	11,002
With a Related Allowance Recorded	3,401	1,307
Related Allowance	(284)	(135)
Equal to or Greater than 35% LTV | Real Estate | Commercial | Pass
Recorded Investment
With No Allowance Recorded	3,585	5,582
With a Related Allowance Recorded	1,296	0
Unpaid Principal Balance
With No Allowance Recorded	4,334	6,468
With a Related Allowance Recorded	1,296	0
Related Allowance	(18)	0
Equal to or Greater than 35% LTV | Real Estate | Commercial | Special Mention
Recorded Investment
With No Allowance Recorded	502	0
Unpaid Principal Balance
With No Allowance Recorded	639	0
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Substandard
Recorded Investment
With No Allowance Recorded	610	972
Unpaid Principal Balance
With No Allowance Recorded	610	972
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Pass
Recorded Investment
With No Allowance Recorded	0	26
Unpaid Principal Balance
With No Allowance Recorded	0	496
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Special Mention
Recorded Investment
With No Allowance Recorded	19	0
Unpaid Principal Balance
With No Allowance Recorded	490	0
Less Than 60% LTV | Real Estate | One-to-Four Family | Substandard
Recorded Investment
With No Allowance Recorded	729	564
With a Related Allowance Recorded	0	0
Unpaid Principal Balance
With No Allowance Recorded	729	564
With a Related Allowance Recorded	0	0
Related Allowance	0	0
Less Than 60% LTV | Real Estate | One-to-Four Family | Pass
Recorded Investment
With No Allowance Recorded	801	1,379
Unpaid Principal Balance
With No Allowance Recorded	892	1,463
Less Than 60% LTV | Real Estate | One-to-Four Family | Special Mention
Recorded Investment
With No Allowance Recorded	374	385
Unpaid Principal Balance
With No Allowance Recorded	374	385
Equal to or Greater than 60% LTV | Real Estate | One-to-Four Family | Substandard
Recorded Investment
With No Allowance Recorded	23	29
Unpaid Principal Balance
With No Allowance Recorded	23	29
Equal to or Greater than 60% LTV | Real Estate | One-to-Four Family | Pass
Recorded Investment
With No Allowance Recorded	116	122
Unpaid Principal Balance
With No Allowance Recorded	$ 152	$ 154

Loans - Average Recorded Invest

Loans - Average Recorded Investment and Interest Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Average Recorded Investment
Total	$ 19,687	$ 21,708	$ 20,211	$ 21,821
Interest Income
Total	110	182	546	598
Real Estate | Commercial
Average Recorded Investment
Total	16,730	17,987	16,929	17,869
Interest Income
Total	76	132	419	436
Real Estate | One-to-Four Family
Average Recorded Investment
Total	2,181	2,555	2,323	2,620
Interest Income
Total	23	33	85	98
Real Estate | Multifamily
Average Recorded Investment
Total	672	1,045	853	1,206
Interest Income
Total	10	17	40	61
Real Estate | Home equity and lines of credit
Average Recorded Investment
Total	50	57	51	59
Interest Income
Total	1	0	2	2
Real Estate | Home equity and lines of credit | Substandard
Average Recorded Investment
With a Related Allowance Recorded	32	33	32	33
Interest Income
With a Related Allowance Recorded	0		1	1
Real Estate | Home equity and lines of credit | Pass
Average Recorded Investment
With No Allowance Recorded	18	24	19	26
Interest Income
With No Allowance Recorded	1	0	1	1
Commercial and Industrial
Average Recorded Investment
Total	54	64	55	67
Interest Income
Total	0	0	0	1
Commercial and Industrial | Substandard
Average Recorded Investment
With No Allowance Recorded	37	44	38	47
Interest Income
With No Allowance Recorded	0		0	0
Commercial and Industrial | Special Mention
Average Recorded Investment
With a Related Allowance Recorded	17	20	17	20
Interest Income
With a Related Allowance Recorded	0		0	1
Less Than 35% LTV | Real Estate | Commercial | Substandard
Average Recorded Investment
With No Allowance Recorded	79	0	40	0
Interest Income
With No Allowance Recorded	0		2
Less Than 35% LTV | Real Estate | Multifamily | Substandard
Average Recorded Investment
With No Allowance Recorded	40	41	40	71
Interest Income
With No Allowance Recorded	0	0	1	1
Equal to or Greater than 35% LTV | Real Estate | Commercial | Substandard
Average Recorded Investment
With No Allowance Recorded	8,440	10,707	9,550	11,156
With a Related Allowance Recorded	2,790	1,566	1,860	912
Interest Income
With No Allowance Recorded	3	54	159	183
With a Related Allowance Recorded	10	0	34	17
Equal to or Greater than 35% LTV | Real Estate | Commercial | Pass
Average Recorded Investment
With No Allowance Recorded	3,607	5,714	4,572	5,801
With a Related Allowance Recorded	1,307	0	654	0
Interest Income
With No Allowance Recorded	37	78	145	236
With a Related Allowance Recorded	16		49	0
Equal to or Greater than 35% LTV | Real Estate | Commercial | Special Mention
Average Recorded Investment
With No Allowance Recorded	507	0	253	0
Interest Income
With No Allowance Recorded	10		30	0
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Substandard
Average Recorded Investment
With No Allowance Recorded	611	974	791	1,101
Interest Income
With No Allowance Recorded	6	13	28	48
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Pass
Average Recorded Investment
With No Allowance Recorded	0	30	12	34
Interest Income
With No Allowance Recorded	0	4	0	12
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Special Mention
Average Recorded Investment
With No Allowance Recorded	21	0	10	0
Interest Income
With No Allowance Recorded	4		11	0
Less Than 60% LTV | Real Estate | One-to-Four Family | Substandard
Average Recorded Investment
With No Allowance Recorded	474	233	517	236
With a Related Allowance Recorded	261	342	131	422
Interest Income
With No Allowance Recorded	8	4	27	8
With a Related Allowance Recorded	0	5	0	14
Less Than 60% LTV | Real Estate | One-to-Four Family | Pass
Average Recorded Investment
With No Allowance Recorded	929	1,599	1,150	1,638
Interest Income
With No Allowance Recorded	9	16	38	49
Less Than 60% LTV | Real Estate | One-to-Four Family | Special Mention
Average Recorded Investment
With No Allowance Recorded	376	195	380	97
Interest Income
With No Allowance Recorded	5	6	16	17
Equal to or Greater than 60% LTV | Real Estate | One-to-Four Family | Substandard
Average Recorded Investment
With No Allowance Recorded	24	62	26	101
Interest Income
With No Allowance Recorded	0	1	1	7
Equal to or Greater than 60% LTV | Real Estate | One-to-Four Family | Pass
Average Recorded Investment
With No Allowance Recorded	117	124	119	126
Interest Income
With No Allowance Recorded	$ 1	$ 1	$ 3	$ 3

Loans - Narrative, Troubled Deb

Loans - Narrative, Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020USD ($)numberOfBorrowersloan	Sep. 30, 2019loan	Sep. 30, 2020USD ($)loannumberOfBorrowerscontract	Sep. 30, 2019USD ($)contract	Dec. 31, 2019USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract)	0	0	3	2
Pre-Modification Outstanding Recorded Investment			$ 731	$ 2,836
Post-Modification Outstanding Recorded Investment			$ 731	$ 2,836
Number of borrowers | numberOfBorrowers	3		3
Troubled debt restructurings	$ 17,400		$ 17,400		$ 18,500
Number of TDR loans restructured that subsequently defaulted (contract) | contract			0	0
COVID-19
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract) | contract			4
Non-TDR loan restructuring modifications (contracts) | loan			85
Loans	105,600		$ 105,600
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			19
Loans	40,800		$ 40,800
COVID-19 | Deferrable notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-TDR loan restructuring modifications (contracts) | loan			66
Loans	$ 64,800		$ 64,800
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract) | loan			1
Pre-Modification Outstanding Recorded Investment			$ 187
Post-Modification Outstanding Recorded Investment			$ 187
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract) | contract				1
Pre-Modification Outstanding Recorded Investment				$ 2
Post-Modification Outstanding Recorded Investment				$ 2
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract)			2	1
Pre-Modification Outstanding Recorded Investment			$ 544	$ 2,834
Post-Modification Outstanding Recorded Investment			$ 544	$ 2,834

Deposits - Deposit Account Bala

Deposits - Deposit Account Balances (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Deposits [Abstract]
Non-interest-bearing checking	$ 706,072	$ 387,409
Negotiable orders of withdrawal (NOW) and interest-bearing checking	897,575	573,927
Savings and money market	1,734,916	1,398,345
Certificates of deposit	782,601	1,048,552
Total deposits	$ 4,121,164	$ 3,408,233

Deposits - Interest Expense On

Deposits - Interest Expense On Deposits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Deposits [Abstract]
NOW and interest-bearing checking, savings, and money market	$ 2,023	$ 5,281	$ 8,990	$ 15,452
Certificates of deposit	3,620	5,235	13,405	15,860
Total interest expense on deposit accounts	$ 5,643	$ 10,516	$ 22,395	$ 31,312

Equity Incentive Plans - Narrat

Equity Incentive Plans - Narrative (Details)	Feb. 17, 2020USD ($)shares	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)shares	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)shares	May 22, 2019shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)				103,581
Allocated share-based compensation expense | $		$ 217,000	$ 425,000	$ 1,100,000	$ 2,900,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future stock-based compensation expense | $		46,000		$ 46,000		$ 46,000
Average period of expected future stock option expense				1 year 1 month 6 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future stock-based compensation expense | $		$ 1,300,000		$ 1,300,000		$ 1,300,000
Average period of expected future stock option expense				4 years 4 months 24 days
Two Thousand Nineteen Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (shares)							6,000,000
Number of shares authorized, issued in form of restricted stock reduction multiplier							4.5
Stock options granted (shares)						0
Two Thousand Nineteen Equity Incentive Plan | Restricted Stock and Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (shares)							1,333,333
Two Thousand Nineteen Equity Incentive Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	83,744
Grant date value | $	$ 1,300,000
Two Thousand Nineteen Equity Incentive Plan | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	19,837
Grant date value | $	$ 313,623
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)	28,460
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)	55,284
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 - Stock

Equity Incentive Plans - Stock Options Outstanding (Details) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Number of Stock Options
Beginning Balance (shares)	2,227,193
Exercised (shares)	(13,000)
Ending Balance (shares)	2,214,193	2,227,193
Exercisable (shares)	2,189,114
Weighted Average Grant Date Fair Value
Beginning Balance (usd per share)	$ 4.01
Exercised (usd per share)	3.93
Ending Balance (usd per share)	4.01	$ 4.01
Exercisable (usd per share)	4
Weighted Average Exercise Price
Beginning Balance (usd per share)	13.93
Exercised (usd per share)	13.38
Ending Balance (usd per share)	13.94	$ 13.93
Exercisable (usd per share)	$ 13.91
Weighted Average Contractual Life (years)
Outstanding	4 years 2 months 15 days	4 years 11 months 15 days
Exercisable	4 years 2 months 12 days

Equity Incentive Plans - Status

Equity Incentive Plans - Status of the Company's Restricted Share Awards (Details)	9 Months Ended
	Sep. 30, 2020$ / sharesshares
Number of Shares Awarded
Beginning Balance (shares) | shares	71,102
Granted (shares) | shares	103,581
Vested (shares) | shares	(63,100)
Forfeited (shares) | shares	(1,225)
Ending Balance (shares) | shares	110,358
Weighted Average Grant Date Fair Value
Beginning Balance (in dollars per share) | $ / shares	$ 15.36
Granted (in dollars per share) | $ / shares	15.81
Vested (in dollars per share) | $ / shares	14.97
Forfeited (in dollars per share) | $ / shares	15.81
Ending Balance (in dollars per share) | $ / shares	$ 16

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	$ 1,171,430	$ 1,138,352
Trading securities	10,993	11,222
Impaired loans	6,113	4,942
Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	1,171,430	1,138,352
Trading securities	10,993	11,222
Equity securities	4,502	250
Total	1,186,925	1,149,824
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	3,170
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	1,069,182	973,127
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	312,051	329,407
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	753,955	643,667
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	6	53
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	229	299
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	101,175	164,926
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	844
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	102,248	165,225
Measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0	0
Trading securities	10,993	11,222
Equity securities	4,502	250
Total	15,495	11,472
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
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	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
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	1,171,430	1,138,352
Trading securities	0	0
Equity securities	0	0
Total	1,171,430	1,138,352
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	3,170
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	1,069,182	973,127
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	312,051	329,407
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	753,955	643,667
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	6	53
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	229	299
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	101,175	164,926
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	844
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	102,248	165,225
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
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	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
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	6,113	4,942
Measured on a non-recurring basis | Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	6,100	4,927
Measured on a non-recurring basis | Real Estate | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	6,052	4,871
Measured on a non-recurring basis | Real Estate | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	19	26
Measured on a non-recurring basis | Real Estate | Home Equity and Lines of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	29	30
Measured on a non-recurring basis | Commercial and Industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	13	15
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
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real Estate | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real Estate | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Real Estate | Home Equity and Lines of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and Industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real Estate | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real Estate | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Real Estate | Home Equity and Lines of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Significant Other Observable Inputs (Level 2) | Commercial and Industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	6,113	4,942
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	6,100	4,927
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real Estate | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	6,052	4,871
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real Estate | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	19	26
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real Estate | Home Equity and Lines of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	29	30
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Commercial and Industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 13	$ 15

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	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	$ 6,113	$ 4,942
Appraisals | Discount for costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable	0.070	0.070
Appraisals | Discount for quick sale
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable	0.100	0.100
Discounted cash flows | Interest rates | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable	0.0413	0.0413
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	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Impaired loans held-for-investment and held-for-sale with outstanding principal balances	$ 8,600		$ 7,000
Estimated fair value of impaired loans held-for-investment and held-for-sale	6,100		$ 4,900
Increase (decrease) in net impairment charges	166	$ 117
Net recoveries (charge offs)	$ 260	$ 1,300

Fair Value Measurements - Estim

Fair Value Measurements - Estimated Fair Values of the Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financial assets:
Trading securities	$ 10,993	$ 11,222
Debt securities available-for-sale	1,171,430	1,138,352
Debt securities held-to-maturity	8,475	8,886
Financial liabilities:
Equity securities not been classified in the fair value		3,100
Carrying Value
Financial assets:
Cash and cash equivalents	350,839	147,818
Trading securities	10,993	11,222
Debt securities available-for-sale	1,171,430	1,138,352
Debt securities held-to-maturity	8,106	8,762
Equity securities	4,502	250
Federal Home Loan Bank of New York stock, at cost	29,766	39,575
Net loans held-for-investment	3,692,901	3,408,378
Derivative assets	1,863	79
Financial liabilities:
Deposits	4,121,164	3,408,233
Borrowed funds	616,905	857,004
Advance payments by borrowers for taxes and insurance	17,329	44,069
Derivative liabilities	1,868	79
Estimated Fair Value
Financial assets:
Cash and cash equivalents	350,839	147,818
Trading securities	10,993	11,222
Debt securities available-for-sale	1,171,430	1,138,352
Debt securities held-to-maturity	8,475	8,886
Equity securities	4,502	250
Federal Home Loan Bank of New York stock, at cost	29,766	39,575
Net loans held-for-investment	3,748,211	3,482,804
Derivative assets	1,863	79
Financial liabilities:
Deposits	4,128,474	3,412,414
Borrowed funds	637,760	862,980
Advance payments by borrowers for taxes and insurance	17,329	44,069
Derivative liabilities	1,868	79
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	350,839	147,818
Trading securities	10,993	11,222
Debt securities available-for-sale	0	0
Debt securities held-to-maturity	0	0
Equity securities	4,502	250
Federal Home Loan Bank of New York stock, at cost	0	0
Net loans held-for-investment	0	0
Derivative assets	0	0
Financial liabilities:
Deposits	0	0
Borrowed funds	0	0
Advance payments by borrowers for taxes and insurance	0	0
Derivative liabilities	0	0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and cash equivalents	0	0
Trading securities	0	0
Debt securities available-for-sale	1,171,430	1,138,352
Debt securities held-to-maturity	8,475	8,886
Equity securities	0	0
Federal Home Loan Bank of New York stock, at cost	29,766	39,575
Net loans held-for-investment	0	0
Derivative assets	1,863	79
Financial liabilities:
Deposits	4,128,474	3,412,414
Borrowed funds	637,760	862,980
Advance payments by borrowers for taxes and insurance	17,329	44,069
Derivative liabilities	1,868	79
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
Federal Home Loan Bank of New York stock, at cost	0	0
Net loans held-for-investment	3,748,211	3,482,804
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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 8,582	$ 13,139	$ 23,926	$ 30,114
Weighted average shares outstanding-basic (shares)	50,707,691	46,631,008	48,131,005	46,808,188
Effect of non-vested restricted stock and stock options outstanding (shares)	12,112	348,206	79,276	370,502
Weighted average shares outstanding-diluted (shares)	50,719,803	46,979,214	48,210,281	47,178,690
Earnings per share-basic (usd per share)	$ 0.17	$ 0.28	$ 0.50	$ 0.64
Earnings per share-diluted (usd per share)	$ 0.17	$ 0.28	$ 0.50	$ 0.64
Anti-dilutive shares (shares)	2,287,010	176,944	1,868,511	700,512

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 43,600	$ 39,504
Operating lease liabilities	$ 48,090	$ 44,069
Minimum
Lessee, Lease, Description [Line Items]
Term of lease	6 months
Renewal term	5 years
Maximum
Lessee, Lease, Description [Line Items]
Term of lease	35 years
Renewal term	10 years

Leases - Supplemental Lease Inf

Leases - Supplemental Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	$ 2,073	$ 1,551	$ 4,935	$ 4,568
Variable lease cost	878	663	2,378	2,152
Net lease cost	2,951	2,214	7,313	6,720
Cash paid for amounts included in measurement of operating lease liabilities	2,111	1,528	5,180	4,368
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 0	$ 0	$ 3,028	$ 1,013
Weighted average remaining lease term	12 years 4 months 20 days	12 years 8 months 4 days	12 years 4 months 20 days	12 years 8 months 4 days
Weighted average discount rate	3.55%	3.61%	3.55%	3.61%

Leases - Lease Payments Obligat

Leases - Lease Payments Obligations (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
2020	$ 1,700
2021	6,555
2022	5,959
2023	5,942
2024	5,562
Thereafter	35,873
Total lease payments	61,591
Less: imputed interest	13,501
Present value of lease liabilities	$ 48,090	$ 44,069

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	$ 1,009	$ 1,286	$ 2,795	$ 3,633
Income on bank owned life insurance	894	3,268	2,635	5,071
Gains on available-for-sale debt securities, net	45	123	105	337
Gains (losses) on trading securities, net	763	28	397	1,457
Gains on sale of loans	0	0	665	0
Swap income	307	0	691	0
Other	4	28	81	115
Total non-interest income	3,022	4,733	7,369	10,613
Service charges
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	565	864	1,674	2,458
ATM and card interchange fees
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	351	343	930	983
Investment fees
Disaggregation of Revenue [Line Items]
Total fees and service charges for customer services	$ 93	$ 79	$ 191	$ 192

Derivatives (Details)

Derivatives (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020USD ($)instrument	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)instrument	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)instrument
Derivative [Line Items]
Swap income	$ 307,000	$ 0	$ 691,000	$ 0
Interest Rate Swap
Derivative [Line Items]
Number of derivative instruments held | instrument	6		6		1
Derivative, notional amount	$ 34,400,000		$ 34,400,000		$ 12,000,000
Derivative assets (liabilities), at fair value	$ 1,900,000		$ 1,900,000		$ 79,000

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements Adopted (Details)	Sep. 30, 2020
Accounting Standards Update and Change in Accounting Principle [Abstract]
Reporting unit, percentage of fair value in excess of carrying amount	27.00%