Northfield Bancorp, Inc. (NFBK) 10-Q 9 Aug 19 2019 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2019	Jul. 31, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
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)		49,253,981
Entity Central Index Key	0001493225
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
ASSETS:
Cash and due from banks	$ 14,156	$ 15,147
Interest-bearing deposits in other financial institutions	32,751	62,615
Total cash and cash equivalents	46,907	77,762
Trading securities	10,214	8,968
Debt securities available-for-sale, at estimated fair value	1,049,660	808,031
Debt securities held-to-maturity, at amortized cost	8,872	9,505
Equity securities	2,328	1,280
Originated loans held-for-investment, net	2,800,816	2,678,877
Loans acquired	519,885	546,150
Purchased credit-impaired (“PCI”) loans held-for-investment	18,077	20,143
Loans held-for-investment, net	3,338,778	3,245,170
Allowance for loan losses	(27,832)	(27,497)
Net loans held-for-investment	3,310,946	3,217,673
Accrued interest receivable	14,116	12,959
Bank owned life insurance	155,939	154,135
Federal Home Loan Bank of New York stock, at cost	32,330	22,517
Premises and equipment, net	25,700	25,605
Goodwill	38,411	38,411
Operating lease right-of-use assets	42,377
Other assets	30,482	31,586
Total assets	4,768,282	4,408,432
LIABILITIES:
Deposits	3,300,191	3,286,512
Securities sold under agreements to repurchase	75,000	0
Other borrowings	620,105	408,891
Operating lease liabilities	46,321
Advance payments by borrowers for taxes and insurance	20,817	18,007
Accrued expenses and other liabilities	24,755	28,583
Total liabilities	4,087,189	3,741,993
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, 60,933,707 shares issued at June 30, 2019 and December 31, 2018, 49,112,139 and 49,635,673 outstanding at June 30, 2019, and December 31, 2018, respectively	609	609
Additional paid-in-capital	548,197	546,219
Unallocated common stock held by employee stock ownership plan	(20,491)	(20,992)
Retained earnings	309,594	302,544
Accumulated other comprehensive income (loss)	4,160	(9,147)
Treasury stock at cost; 11,821,568 and 11,298,034 shares at June 30, 2019, and December 31, 2018, respectively	(160,976)	(152,794)
Total stockholders’ equity	681,093	666,439
Total liabilities and stockholders’ equity	$ 4,768,282	$ 4,408,432

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Debt securities held-to-maturity	$ 8,877	$ 9,249
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)	60,933,707	60,933,707
Common stock, shares outstanding (shares)	49,112,139	49,635,673
Treasury stock, shares (shares)	11,821,568	11,298,034

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest income:
Loans	$ 33,308	$ 31,456	$ 65,898	$ 62,243
Mortgage-backed securities	4,599	3,068	8,673	5,794
Other securities	1,699	821	3,564	1,323
Federal Home Loan Bank of New York dividends	340	398	742	812
Deposits in other financial institutions	247	192	782	445
Total interest income	40,193	35,935	79,659	70,617
Interest expense:
Deposits	10,549	6,050	20,796	11,261
Borrowings	2,485	2,115	4,374	4,042
Total interest expense	13,034	8,165	25,170	15,303
Net interest income	27,159	27,770	54,489	55,314
Provision for loan losses	491	670	550	704
Net interest income after provision for loan losses	26,668	27,100	53,939	54,610
Non-interest income:
Fees and service charges for customer services	1,207	1,147	2,347	2,361
Income on bank owned life insurance	907	914	1,804	1,868
Gains on available-for-sale debt securities, net	59	116	214	171
Gains on trading securities, net	343	197	1,429	302
Other	50	71	86	147
Total non-interest income	2,566	2,445	5,880	4,849
Non-interest expense:
Compensation and employee benefits	9,837	9,121	20,857	18,238
Occupancy	3,120	2,950	6,402	6,046
Furniture and equipment	265	252	524	508
Data processing	1,437	1,150	2,700	2,374
Professional fees	811	909	1,558	1,672
Advertising	1,331	643	2,095	1,254
FDIC insurance	255	274	532	571
Other	1,694	1,741	3,286	3,503
Total non-interest expense	18,750	17,040	37,954	34,166
Income before income tax expense	10,484	12,505	21,865	25,293
Income tax expense	2,280	1,893	4,890	4,237
Net income	$ 8,204	$ 10,612	$ 16,975	$ 21,056
Net income per common share:
Basic (usd per share)	$ 0.18	$ 0.23	$ 0.36	$ 0.46
Diluted (usd per share)	$ 0.17	$ 0.23	$ 0.36	$ 0.45
Unrealized gains (losses) on debt securities:
Net unrealized holding gains (losses) on debt securities	$ 9,930	$ (2,290)	$ 18,693	$ (8,443)
Less: reclassification adjustment for net gains included in net income (included in gains on available-for-sale debt securities, net)	(59)	(116)	(214)	(171)
Net unrealized gains (losses)	9,871	(2,406)	18,479	(8,614)
Income tax (expense) benefit related to net unrealized holding gains (losses) on debt securities	(2,779)	640	(5,232)	2,369
Income tax benefit related to reclassification adjustment for gains included in net income	17	33	60	48
Other comprehensive income (loss), net of tax	7,109	(1,733)	13,307	(6,197)
Comprehensive income	$ 15,313	$ 8,879	$ 30,282	$ 14,859

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, 2017		48,803,885
Beginning Balance at Dec. 31, 2017	$ 638,877	$ 609	$ 548,864	$ (22,244)	$ 281,138	$ (5,451)	$ (164,039)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	21,056				21,056
Other comprehensive loss, net of tax	(6,197)					(6,197)
ESOP shares allocated or committed to be released	1,005		498	507
Stock compensation expense	2,717		2,717
Forfeitures of restricted stock (shares)		(1,760)
Forfeitures of restricted stock	0		23				(23)
Exercise of stock options, net (shares)		679,464
Exercise of stock options, net	1,491		(7,698)				9,189
Cash dividends declared	(9,294)				(9,294)
Ending Balance (shares) at Jun. 30, 2018		49,481,589
Ending Balance at Jun. 30, 2018	649,655	$ 609	544,404	(21,737)	292,900	(11,648)	(154,873)
Beginning Balance (shares) at Mar. 31, 2018		49,126,879
Beginning Balance at Mar. 31, 2018	642,818	$ 609	546,844	(21,992)	286,942	(9,915)	(159,670)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	10,612				10,612
Other comprehensive loss, net of tax	(1,733)					(1,733)
ESOP shares allocated or committed to be released	502		247	255
Stock compensation expense	1,344		1,344
Forfeitures of restricted stock (shares)		(1,160)
Forfeitures of restricted stock	0		15				(15)
Exercise of stock options, net (shares)		355,870
Exercise of stock options, net	766		(4,046)				4,812
Cash dividends declared	(4,654)				(4,654)
Ending Balance (shares) at Jun. 30, 2018		49,481,589
Ending Balance at Jun. 30, 2018	649,655	$ 609	544,404	(21,737)	292,900	(11,648)	(154,873)
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	16,975				16,975
Other comprehensive loss, net of tax	13,307					13,307
ESOP shares allocated or committed to be released	893		392	501
Stock compensation expense	2,440		2,440
Forfeitures of restricted stock (shares)		(8,000)
Forfeitures of restricted stock	$ 0		118				(118)
Exercise of stock options, net (shares)	161,332	147,961
Exercise of stock options, net	$ 1,029		(972)				2,001
Cash dividends declared	(9,925)				(9,925)
Treasury stock (shares)		(663,495)
Treasury stock	(10,065)						(10,065)
Ending Balance (shares) at Jun. 30, 2019		49,112,139
Ending Balance at Jun. 30, 2019	681,093	$ 609	548,197	(20,491)	309,594	4,160	(160,976)
Beginning Balance (shares) at Mar. 31, 2019		49,773,796
Beginning Balance at Mar. 31, 2019	679,440	$ 609	546,861	(20,743)	306,588	(2,949)	(150,926)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,204				8,204
Other comprehensive loss, net of tax	7,109					7,109
ESOP shares allocated or committed to be released	457		205	252
Stock compensation expense	1,112		1,112
Forfeitures of restricted stock (shares)		(8,000)
Forfeitures of restricted stock	0		118				(118)
Exercise of stock options, net (shares)		9,838
Exercise of stock options, net	34		(99)				133
Cash dividends declared	(5,198)				(5,198)
Treasury stock (shares)		(663,495)
Treasury stock	(10,065)						(10,065)
Ending Balance (shares) at Jun. 30, 2019		49,112,139
Ending Balance at Jun. 30, 2019	$ 681,093	$ 609	$ 548,197	$ (20,491)	$ 309,594	$ 4,160	$ (160,976)

Consolidated Statements of Ch_2

Consolidated Statements of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (usd per share)	$ 0.11	$ 0.10	$ 0.21	$ 0.20
Dividends paid per share (usd per share)	0.11	$ 0.10	0.21	$ 0.20
Treasury stock acquired, average cost per share (usd per share)	$ 15.16		$ 15.16

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Statement of Cash Flows [Abstract]
Net income	$ 16,975	$ 21,056
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	550	704
ESOP and stock compensation expense	3,333	3,722
Depreciation	1,542	1,529
Amortization of premiums, and deferred loan costs, net of (accretion) of discounts, and deferred loan fees	2,034	1,223
Amortization of intangible assets	136	166
Amortization of operating lease right-of-use assets	2,196
Accretion of operating lease liabilities	820
Income on bank owned life insurance	(1,804)	(1,868)
Gains on available-for-sale debt securities, net	(214)	(171)
Gains on trading securities, net	(1,429)	(302)
Net sales (purchases) of trading securities	183	(268)
Increase in accrued interest receivable	(1,157)	(700)
(Increase) decrease in other assets	(3,277)	1,283
Decrease in accrued expenses and other liabilities	(3,828)	(336)
Net cash provided by operating activities	16,060	26,038
Cash flows from investing activities:
Net increase in loans receivable	(53,140)	(42,409)
Purchase of loans	(41,527)	(37,593)
Purchases of Federal Home Loan Bank of New York stock	(14,291)	(14,045)
Redemptions of Federal Home Loan Bank of New York stock	4,478	11,373
Purchases of debt securities available-for-sale	(366,902)	(206,709)
Purchases of equity securities	(1,048)	0
Principal payments and maturities on debt securities available-for-sale	108,361	56,699
Principal payments and maturities on debt securities held-to-maturity	607	103
Proceeds from sale of debt securities available-for-sale	34,442	29,608
Proceeds from bank owned life insurance	0	174
Purchases and improvements of premises and equipment	(1,637)	(841)
Net cash used in investing activities	(330,657)	(203,640)
Cash flows from financing activities:
Net increase in deposits	13,679	130,302
Dividends paid	(9,925)	(9,294)
Exercise of stock options	1,029	1,491
Purchase of treasury stock	(10,065)	0
Increase in advance payments by borrowers for taxes and insurance	2,810	3,211
Repayments under capital lease obligations	(44)	(124)
Proceeds from securities sold under agreements to repurchase and other borrowings	349,760	415,545
Repayments related to securities sold under agreements to repurchase and other borrowings	(63,502)	(362,635)
Net cash provided by financing activities	283,742	178,496
Net (decrease) increase in cash and cash equivalents	(30,855)	894
Cash and cash equivalents at beginning of period	77,762	57,839
Cash and cash equivalents at end of period	46,907	58,733
Cash paid during the period for:
Interest	24,930	15,222
Income taxes	5,732	4,747
Non-cash transactions:
Loans charge-offs, net	215	$ (18)
Initial recognition of operating lease right-of use assets	43,560
Initial recognition of operating lease liabilities	$ 47,328

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements are comprised of the accounts of Northfield Bancorp, Inc. (the “ Company ” ) and its wholly owned subsidiaries, Northfield Investments, Inc. and Northfield Bank (the “ Bank ” ), and the Bank’s wholly-owned significant subsidiaries, NSB Services Corp. and NSB Realty Trust. All significant intercompany accounts and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting solely of normal and recurring adjustments) necessary for the fair presentation of the consolidated financial condition and the consolidated results of operations for the unaudited periods presented have been included. The results of operations and other data presented for the three and six months ended June 30, 2019 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2019 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 statements of financial condition and results of operations 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 income taxes. 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 Annual Report on Form 10-K for the year ended December 31, 2018

Debt Securities Available-for-S

Debt Securities Available-for-Sale	6 Months Ended
	Jun. 30, 2019
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 June 30, 2019 , and December 31, 2018 (in thousands): June 30, 2019 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises (GSE) $ 379,322 $ 5,749 $ 937 $ 384,134 Real estate mortgage investment conduits (REMICs): GSE 460,990 2,308 2,601 460,697 Non-GSE 56 — 1 55 840,368 8,057 3,539 844,886 Other debt securities: Municipal bonds 270 3 — 273 Corporate bonds 203,313 1,278 90 204,501 203,583 1,281 90 204,774 Total debt securities available-for-sale $ 1,043,951 $ 9,338 $ 3,629 $ 1,049,660 December 31, 2018 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: GSE $ 317,530 $ 800 $ 3,542 $ 314,788 REMICs: GSE 258,050 92 7,979 250,163 Non-GSE 59 — 1 58 575,639 892 11,522 565,009 Other debt securities: Municipal bonds 270 3 — 273 Corporate bonds 244,892 72 2,215 242,749 245,162 75 2,215 243,022 Total debt securities available-for-sale $ 820,801 $ 967 $ 13,737 $ 808,031 The following is a summary of the expected maturity distribution of debt securities available-for-sale, other than mortgage-backed securities, at June 30, 2019 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 59,847 $ 60,136 Due after one year through five years 138,799 139,708 Due after five years through ten years 4,937 4,930 $ 203,583 $ 204,774 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 June 30, 2019 , the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $553.3 million . For the three and six months ended June 30, 2019 , the Company had gross proceeds of $5.2 million and $34.4 million , respectively, on sales of debt securities available-for-sale, with gross realized gains of $59,000 and $214,000 , respectively, and no gross realized losses. For the three months and six months ended June 30, 2018 , the Company had gross proceeds of $10.1 million and $29.6 million , respectively, on sales of debt securities available-for-sale, with gross realized gains of $116,000 and $176,000 , respectively, and gross realized losses of $0 and $5,000 , respectively. The Company recognized net gains of $343,000 and $1.4 million on its trading securities portfolio during the three and six months ended June 30, 2019 , respectively, and net gains of $197,000 and $302,000 , during the three and six months ended June 30, 2018 , 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 June 30, 2019 , and December 31, 2018 , were as follows (in thousands): June 30, 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 $ 7 $ 3,302 $ 930 $ 63,707 $ 937 $ 67,009 REMICs: GSE 32 96,899 2,569 123,353 2,601 220,252 Non-GSE — — 1 55 1 55 Other debt securities: Corporate bonds 30 24,024 60 19,977 90 44,001 Total $ 69 $ 124,225 $ 3,560 $ 207,092 $ 3,629 $ 331,317 December 31, 2018 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 $ 404 $ 82,781 $ 3,138 $ 100,109 $ 3,542 $ 182,890 REMICs: GSE 269 46,921 7,710 181,512 7,979 228,433 Non-GSE — — 1 58 1 58 Other debt securities: Corporate bonds 1,703 173,219 512 25,675 2,215 198,894 Total $ 2,376 $ 302,921 $ 11,361 $ 307,354 $ 13,737 $ 610,275 The Company held 38 pass-through mortgage-backed securities issued or guaranteed by GSEs, 34 REMIC mortgage-backed securities issued or guaranteed by GSEs, one REMIC mortgage-backed security not issued or guaranteed by a GSE, and four corporate bonds that were in a continuous unrealized loss position of twelve months or greater at June 30, 2019 . There were two pass-through mortgage-backed securities issued or guaranteed by GSEs, nine REMIC mortgage-backed security issued or guaranteed by a GSE, and four corporate bonds that were in an unrealized loss position of less than twelve months at June 30, 2019 . All securities referred to above were rated investment grade at June 30, 2019 . 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. The fair values of our debt securities available-for-sale 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, which may result in other-than-temporary impairment in the future. The Company did no t recognize any other-than-temporary impairment charges during the three and six months ended June 30, 2019 , or June 30, 2018 At June 30, 2019 , and December 31, 2018 , equity securities totaled $2.3 million and $1.3 million , respectively. Equity securities consist of money market mutual funds, recorded at fair value of $269,000 and $237,000 , at June 30, 2019 , and December 31, 2018 , respectively, and an investment in a private Small Business Administration (“SBA”) Loan Fund recorded at net asset value of $2.1 million at June 30, 2019 , and $1.0 million at December 31, 2018

Debt Securities Held-to-Maturit

Debt Securities Held-to-Maturity	6 Months Ended
	Jun. 30, 2019
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 June 30, 2019 , and December 31, 2018 (in thousands): June 30, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 8,872 $ 47 $ 42 $ 8,877 Total securities held-to-maturity $ 8,872 $ 47 $ 42 $ 8,877 December 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 9,505 $ — $ 256 $ 9,249 Total securities held-to-maturity $ 9,505 $ — $ 256 $ 9,249 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 six months ended June 30, 2019 , or June 30, 2018 . At June 30, 2019 , debt securities held-to-maturity with a carrying value of $6.1 million were pledged to secure borrowings and deposits. Gross unrealized losses on mortgage-backed securities held-to-maturity, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at June 30, 2019 and December 31, 2018 , were as follows (in thousands): June 30, 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 $ — $ — $ 42 $ 3,746 $ 42 $ 3,746 Total securities held-to-maturity $ — $ — $ 42 $ 3,746 $ 42 $ 3,746 December 31, 2018 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 $ 34 $ 2,133 $ 222 $ 7,116 $ 256 $ 9,249 Total securities held-to-maturity $ 34 $ 2,133 $ 222 $ 7,116 $ 256 $ 9,249 The Company held three pass-through mortgage-backed securities held-to-maturity, issued or guaranteed by GSEs, that were in a continuous unrealized loss position of greater than twelve months at June 30, 2019 . 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. 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 no t recognize any other-than-temporary impairment charges in earnings on securities held-to-maturity during the three and six months ended June 30, 2019 , or June 30, 2018 .

Equity Securities

Equity Securities	6 Months Ended
	Jun. 30, 2019
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 June 30, 2019 , and December 31, 2018 (in thousands): June 30, 2019 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises (GSE) $ 379,322 $ 5,749 $ 937 $ 384,134 Real estate mortgage investment conduits (REMICs): GSE 460,990 2,308 2,601 460,697 Non-GSE 56 — 1 55 840,368 8,057 3,539 844,886 Other debt securities: Municipal bonds 270 3 — 273 Corporate bonds 203,313 1,278 90 204,501 203,583 1,281 90 204,774 Total debt securities available-for-sale $ 1,043,951 $ 9,338 $ 3,629 $ 1,049,660 December 31, 2018 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: GSE $ 317,530 $ 800 $ 3,542 $ 314,788 REMICs: GSE 258,050 92 7,979 250,163 Non-GSE 59 — 1 58 575,639 892 11,522 565,009 Other debt securities: Municipal bonds 270 3 — 273 Corporate bonds 244,892 72 2,215 242,749 245,162 75 2,215 243,022 Total debt securities available-for-sale $ 820,801 $ 967 $ 13,737 $ 808,031 The following is a summary of the expected maturity distribution of debt securities available-for-sale, other than mortgage-backed securities, at June 30, 2019 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 59,847 $ 60,136 Due after one year through five years 138,799 139,708 Due after five years through ten years 4,937 4,930 $ 203,583 $ 204,774 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 June 30, 2019 , the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was $553.3 million . For the three and six months ended June 30, 2019 , the Company had gross proceeds of $5.2 million and $34.4 million , respectively, on sales of debt securities available-for-sale, with gross realized gains of $59,000 and $214,000 , respectively, and no gross realized losses. For the three months and six months ended June 30, 2018 , the Company had gross proceeds of $10.1 million and $29.6 million , respectively, on sales of debt securities available-for-sale, with gross realized gains of $116,000 and $176,000 , respectively, and gross realized losses of $0 and $5,000 , respectively. The Company recognized net gains of $343,000 and $1.4 million on its trading securities portfolio during the three and six months ended June 30, 2019 , respectively, and net gains of $197,000 and $302,000 , during the three and six months ended June 30, 2018 , 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 June 30, 2019 , and December 31, 2018 , were as follows (in thousands): June 30, 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 $ 7 $ 3,302 $ 930 $ 63,707 $ 937 $ 67,009 REMICs: GSE 32 96,899 2,569 123,353 2,601 220,252 Non-GSE — — 1 55 1 55 Other debt securities: Corporate bonds 30 24,024 60 19,977 90 44,001 Total $ 69 $ 124,225 $ 3,560 $ 207,092 $ 3,629 $ 331,317 December 31, 2018 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 $ 404 $ 82,781 $ 3,138 $ 100,109 $ 3,542 $ 182,890 REMICs: GSE 269 46,921 7,710 181,512 7,979 228,433 Non-GSE — — 1 58 1 58 Other debt securities: Corporate bonds 1,703 173,219 512 25,675 2,215 198,894 Total $ 2,376 $ 302,921 $ 11,361 $ 307,354 $ 13,737 $ 610,275 The Company held 38 pass-through mortgage-backed securities issued or guaranteed by GSEs, 34 REMIC mortgage-backed securities issued or guaranteed by GSEs, one REMIC mortgage-backed security not issued or guaranteed by a GSE, and four corporate bonds that were in a continuous unrealized loss position of twelve months or greater at June 30, 2019 . There were two pass-through mortgage-backed securities issued or guaranteed by GSEs, nine REMIC mortgage-backed security issued or guaranteed by a GSE, and four corporate bonds that were in an unrealized loss position of less than twelve months at June 30, 2019 . All securities referred to above were rated investment grade at June 30, 2019 . 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. The fair values of our debt securities available-for-sale 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, which may result in other-than-temporary impairment in the future. The Company did no t recognize any other-than-temporary impairment charges during the three and six months ended June 30, 2019 , or June 30, 2018 At June 30, 2019 , and December 31, 2018 , equity securities totaled $2.3 million and $1.3 million , respectively. Equity securities consist of money market mutual funds, recorded at fair value of $269,000 and $237,000 , at June 30, 2019 , and December 31, 2018 , respectively, and an investment in a private Small Business Administration (“SBA”) Loan Fund recorded at net asset value of $2.1 million at June 30, 2019 , and $1.0 million at December 31, 2018

Loans

Loans	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Loans	Loans Net loans held-for-investment are as follows (in thousands): June 30, December 31, 2019 2018 Real estate loans: Multifamily $ 2,029,205 $ 1,930,535 Commercial mortgage 511,711 499,311 One-to-four family residential mortgage 88,713 91,371 Home equity and lines of credit 85,506 78,593 Construction and land 33,557 26,552 Total real estate loans 2,748,692 2,626,362 Commercial and industrial loans 42,660 44,104 Other loans 2,028 1,519 Total commercial and industrial and other loans 44,688 45,623 Deferred loan cost, net 7,436 6,892 Originated loans held-for-investment, net 2,800,816 2,678,877 PCI Loans 18,077 20,143 Loans acquired: One-to-four family residential mortgage 229,941 225,877 Multifamily 131,628 145,485 Commercial mortgage 125,599 133,263 Home equity and lines of credit 14,390 17,583 Construction and land 8,381 12,003 Total acquired real estate loans 509,939 534,211 Commercial and industrial loans 9,942 11,933 Other loans 4 6 Total loans acquired, net 519,885 546,150 Loans held-for-investment, net 3,338,778 3,245,170 Allowance for loan losses (27,832 ) (27,497 ) Net loans held-for-investment $ 3,310,946 $ 3,217,673 There were no loans held-for-sale at June 30, 2019 , or December 31, 2018 . PCI loans totaled $18.1 million at June 30, 2019 , as compared to $20.1 million at December 31, 2018 . The majority of the PCI loan balance is 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 June 30, 2019 , PCI loans consist of approximately 29% commercial real estate loans and 45% commercial and industrial loans, with the remaining balance in residential and home equity loans. At December 31, 2018 , PCI loans consist of approximately 27% commercial real estate loans and 50% 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 six months ended June 30, 2019 and June 30, 2018 (in thousands): At or for the three months ended June 30, At or for the six months ended June 30, 2019 2018 2019 2018 Balance at the beginning of period $ 20,797 $ 23,412 $ 21,846 $ 24,502 Accretion into interest income (1,003 ) (1,026 ) (2,052 ) (2,116 ) Balance at end of period $ 19,794 $ 22,386 $ 19,794 $ 22,386 The following tables set forth activity in our allowance for loan losses, by loan type, as of and for the three and six months ended June 30, 2019 , and June 30, 2018 (in thousands): Three Months Ended June 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 $ 5,382 $ 370 $ 574 $ 18,346 $ 336 $ 1,376 $ 92 $ 26,476 $ 1,010 $ — $ 27,486 Charge-offs — — — — — (57 ) (123 ) (180 ) — (53 ) (233 ) Recoveries 13 72 — — — — 1 86 — 2 88 Provisions (credit) (64 ) (208 ) 10 38 81 272 176 305 — 186 491 Ending balance $ 5,331 $ 234 $ 584 $ 18,384 $ 417 $ 1,591 $ 146 $ 26,687 $ 1,010 $ 135 $ 27,832 Three Months Ended June 30, 2018 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 $ 5,213 $ 455 $ 463 $ 17,412 $ 225 $ 1,337 $ 113 $ 25,218 $ 951 $ 3 $ 26,172 Charge-offs — — — — — — — — — — — Recoveries 12 — — 26 — — — 38 — 2 40 Provisions (credit) 493 (71 ) (25 ) 165 54 65 (6 ) 675 — (5 ) 670 Ending balance $ 5,718 $ 384 $ 438 $ 17,603 $ 279 $ 1,402 $ 107 $ 25,931 $ 951 $ — $ 26,882 Six Months Ended June 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 (6 ) — — — — (83 ) (123 ) (212 ) — (112 ) (324 ) Recoveries 25 72 — — — — 1 98 — 11 109 Provisions/(credit) (318 ) (180 ) 121 300 126 105 160 314 — 236 550 Ending balance $ 5,331 $ 234 $ 584 $ 18,384 $ 417 $ 1,591 $ 146 $ 26,687 $ 1,010 $ 135 $ 27,832 Six Months Ended June 30, 2018 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 $ 5,196 $ 503 $ 610 $ 17,374 $ 122 $ 1,273 $ 94 $ 25,172 $ 951 $ 37 $ 26,160 Charge-offs (3 ) — — — (60 ) — — (63 ) — (1 ) (64 ) Recoveries 28 — — 26 — 20 — 74 — 8 82 Provisions/(credit) 497 (119 ) (172 ) 203 217 109 13 748 — (44 ) 704 Ending balance $ 5,718 $ 384 $ 438 $ 17,603 $ 279 $ 1,402 $ 107 $ 25,931 $ 951 $ — $ 26,882 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 June 30, 2019 , and December 31, 2018 (in thousands): June 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: Ending balance: individually evaluated for impairment $ 104 $ 1 $ — $ — $ 8 $ 4 $ — $ 117 $ — $ 135 $ 252 Ending balance: collectively evaluated for impairment $ 5,227 $ 233 $ 584 $ 18,384 $ 409 $ 1,587 $ 146 $ 26,570 $ 1,010 $ — $ 27,580 Loans, net: Ending balance $ 512,308 $ 90,232 $ 33,573 $ 2,032,518 $ 87,389 $ 42,768 $ 2,028 $ 2,800,816 $ 18,077 $ 519,885 $ 3,338,778 Ending balance: individually evaluated for impairment $ 14,362 $ 1,854 $ — $ 1,007 $ 58 $ 65 $ — $ 17,346 $ — $ 4,949 $ 22,295 Ending balance: collectively evaluated for impairment $ 497,946 $ 88,378 $ 33,573 $ 2,031,511 $ 87,331 $ 42,703 $ 2,028 $ 2,783,470 $ 18,077 $ 514,936 $ 3,316,483 December 31, 2018 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 $ — $ 18 $ — $ — $ 5 $ 3 $ — $ 26 $ — $ — $ 26 Ending balance: collectively evaluated for impairment $ 5,630 $ 324 $ 463 $ 18,084 $ 286 $ 1,566 $ 108 $ 26,461 $ 1,010 $ — $ 27,471 Loans, net: Ending balance $ 499,860 $ 92,433 $ 26,613 $ 1,933,946 $ 80,315 $ 44,190 $ 1,520 $ 2,678,877 $ 20,143 $ 546,150 $ 3,245,170 Ending balance: individually evaluated for impairment $ 15,252 $ 1,893 $ — $ 1,268 $ 61 $ 73 $ — $ 18,547 $ — $ 3,782 $ 22,329 Ending balance: collectively evaluated for impairment $ 484,608 $ 90,540 $ 26,613 $ 1,932,678 $ 80,254 $ 44,117 $ 1,520 $ 2,660,330 $ 20,143 $ 542,368 $ 3,222,841 The Company monitors the credit quality of its loan portfolio on a regular basis. Credit quality is monitored by reviewing certain credit quality indicators. Management has determined that loan-to-value ratios (at period end) and internally assigned credit risk ratings by loan type are the key credit quality indicators that best measure the credit quality of the Company’s loan receivables. Loan-to-value ( “LTV” ) ratios used by management in monitoring credit quality are based on current period loan balances and original appraised values at 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 described 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 June 30, 2019 , and December 31, 2018 (in thousands): At June 30, 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 $ 204,081 $ 1,822,249 $ 84,114 $ 417,164 $ 54,093 $ 33,994 $ 33,573 $ 87,107 $ 42,301 $ 2,028 $ 2,780,704 Special Mention — 903 387 1,114 732 — — 26 380 — 3,542 Substandard — 5,285 — 9,529 1,079 334 — 256 87 — 16,570 Originated loans held-for-investment, net $ 204,081 $ 1,828,437 $ 84,501 $ 427,807 $ 55,904 $ 34,328 $ 33,573 $ 87,389 $ 42,768 $ 2,028 $ 2,800,816 At December 31, 2018 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 $ 170,832 $ 1,756,882 $ 78,917 $ 409,155 $ 54,912 $ 34,808 $ 26,613 $ 80,077 $ 43,640 $ 1,520 $ 2,657,356 Special Mention — 613 395 1,137 747 — — 27 430 — 3,349 Substandard — 5,619 — 10,256 1,406 560 — 211 120 — 18,172 Originated loans held-for-investment, net $ 170,832 $ 1,763,114 $ 79,312 $ 420,548 $ 57,065 $ 35,368 $ 26,613 $ 80,315 $ 44,190 $ 1,520 $ 2,678,877 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 $10.9 million and $9.2 million at June 30, 2019 , and December 31, 2018 , 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. These non-accrual amounts included loans deemed to be impaired of $7.8 million and $5.9 million at June 30, 2019 , and December 31, 2018 , respectively. Loans on non-accrual status with principal balances less than $500,000 , and therefore not meeting the Company’s definition of an impaired loan, amounted to $3.1 million at June 30, 2019 and $3.2 million at December 31, 2018 . There were no non-accrual loans held-for-sale at both June 30, 2019 and December 31, 2018 . Loans past due 90 days or more and still accruing interest were $26,000 at June 30, 2019 and $33,000 at December 31, 2018 , and consisted of loans that are considered well-secured and in the process of collection. The following tables set forth the detail, and delinquency status, of non-performing loans (non-accrual loans and loans past due 90 days or more and still accruing), net of deferred fees and costs, at June 30, 2019 , and December 31, 2018 , 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): June 30, 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 $ — $ — $ 3,548 $ 3,548 $ — $ 3,548 Total commercial — — 3,548 3,548 — 3,548 One-to-four family residential LTV < 60% Substandard 192 — 308 500 — 500 Total 192 — 308 500 — 500 LTV => 60% Substandard — — 31 31 — 31 Total one-to-four family residential 192 — 339 531 — 531 Home equity and lines of credit Substandard 70 — 52 122 — 122 Total home equity and lines of credit 70 — 52 122 — 122 Total non-performing loans held-for-investment, originated 262 — 3,939 4,201 — 4,201 Loans acquired: Real estate loans: Commercial LTV < 35% Substandard 83 — 191 274 — 274 LTV => 35% Substandard 3,571 1,308 533 5,412 — 5,412 Total commercial 3,654 1,308 724 5,686 — 5,686 One-to-four family residential LTV < 60% Substandard — 194 85 279 6 285 LTV => 60% Substandard 123 — 93 216 — 216 Total one-to-four family residential 123 194 178 495 6 501 Multifamily LTV < 35% Substandard 41 — — 41 — 41 LTV => 35% Substandard — 406 — 406 — 406 Total multifamily 41 406 — 447 — 447 Home equity and lines of credit Substandard — — 28 28 20 48 Total home equity and lines of credit — — 28 28 20 48 Total non-performing loans acquired 3,818 1,908 930 6,656 26 6,682 Total non-performing loans $ 4,080 $ 1,908 $ 4,869 $ 10,857 $ 26 $ 10,883 December 31, 2018 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 $ — $ 287 $ 2,588 $ 2,875 $ — $ 2,875 Total commercial — 287 2,588 2,875 — 2,875 One-to-four family residential LTV < 60% Substandard — 432 77 509 — 509 LTV => 60% Substandard — 32 — 32 — 32 Total one-to-four family residential — 464 77 541 — 541 Home equity and lines of credit Substandard 75 — — 75 — 75 Total home equity and lines of credit 75 — — 75 — 75 Commercial and industrial loans Substandard — — 25 25 — 25 Total commercial and industrial loans — — 25 25 — 25 Total non-performing loans held-for-investment, originated 75 751 2,690 3,516 — 3,516 Loans acquired: Real estate loans: Commercial LTV < 35% Substandard 87 — 194 281 — 281 LTV => 35% Substandard — 764 3,371 4,135 — 4,135 Total commercial 87 764 3,565 4,416 — 4,416 One-to-four family residential LTV < 60% Substandard — 199 169 368 6 374 LTV => 60% Substandard 126 — 93 219 27 246 Total one-to-four family residential 126 199 262 587 33 620 Multifamily LTV < 35% Substandard 152 — — 152 — 152 LTV => 35% Substandard — 414 — 414 — 414 Total multifamily 152 414 — 566 — 566 Home equity and lines of credit Substandard — — 77 77 — 77 Total home equity and lines of credit — — 77 77 — 77 Total non-performing loans acquired 365 1,377 3,904 5,646 33 5,679 Total non-performing loans $ 440 $ 2,128 $ 6,594 $ 9,162 $ 33 $ 9,195 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 June 30, 2019 , and December 31, 2018 (in thousands): June 30, 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 $ 83,891 $ 223 $ 84,114 $ — $ 84,114 Special Mention — 387 387 — 387 Total 83,891 610 84,501 — 84,501 LTV => 35% Pass 417,164 — 417,164 — 417,164 Special Mention 1,114 — 1,114 — 1,114 Substandard 5,981 — 5,981 3,548 9,529 Total 424,259 — 424,259 3,548 427,807 Total commercial 508,150 610 508,760 3,548 512,308 One-to-four family residential LTV < 60% Pass 53,781 312 54,093 — 54,093 Special Mention 85 647 732 — 732 Substandard 579 — 579 500 1,079 Total 54,445 959 55,404 500 55,904 LTV => 60% Pass 33,766 228 33,994 — 33,994 Substandard 303 — 303 31 334 Total 34,069 228 34,297 31 34,328 Total one-to-four family residential 88,514 1,187 89,701 531 90,232 Construction and land Pass 33,573 — 33,573 — 33,573 Total construction and land 33,573 — 33,573 — 33,573 Multifamily LTV < 35% Pass 204,081 — 204,081 — 204,081 Total 204,081 — 204,081 — 204,081 LTV => 35% Pass 1,822,249 — 1,822,249 — 1,822,249 Special Mention 903 — 903 — 903 Substandard 5,285 — 5,285 — 5,285 Total 1,828,437 — 1,828,437 — 1,828,437 Total multifamily 2,032,518 — 2,032,518 — 2,032,518 Home equity and lines of credit Pass 87,107 — 87,107 — 87,107 Special Mention 26 — 26 — 26 Substandard 134 — 134 122 256 Total home equity and lines of credit 87,267 — 87,267 122 87,389 Commercial and industrial Pass 42,096 205 42,301 — 42,301 Special Mention 380 — 380 — 380 Substandard 87 — 87 — 87 Total commercial and industrial 42,563 205 42,768 — 42,768 June 30, 2019 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 2,021 7 2,028 — 2,028 Total originated loans held-for-investment 2,794,606 2,009 2,796,615 4,201 2,800,816 Acquired loans: Real estate loans: One-to-four family residential LTV < 60% Pass 212,479 611 213,090 — 213,090 Special Mention — — — — — Substandard 6 — 6 285 291 Total 212,485 611 213,096 285 213,381 LTV => 60% Pass 16,344 — 16,344 — 16,344 Substandard — — — 216 216 Total 16,344 — 16,344 216 16,560 Total one-to-four family residential 228,829 611 229,440 501 229,941 Commercial LTV < 35% Pass 38,945 106 39,051 — 39,051 Special Mention 1,076 — 1,076 — 1,076 Substandard 1,168 258 1,426 274 1,700 Total 41,189 364 41,553 274 41,827 LTV => 35% Pass 67,605 54 67,659 — 67,659 Special Mention 3,307 125 3,432 — 3,432 Substandard 6,185 1,084 7,269 5,412 12,681 Total 77,097 1,263 78,360 5,412 83,772 Total commercial 118,286 1,627 119,913 5,686 125,599 Construction and land Pass 8,381 — 8,381 — 8,381 Total construction and land 8,381 — 8,381 — 8,381 Multifamily LTV < 35% Pass 127,121 — 127,121 — 127,121 Special Mention 13 — 13 — 13 Substandard — — — 41 41 Total 127,134 — 127,134 41 127,175 LTV => 35% Pass 4,048 — 4,048 — 4,048 Substandard — — — 405 405 Total 4,048 — 4,048 405 4,453 Total multifamily 131,182 — 131,182 446 131,628 Home equity and lines of credit Pass 14,265 — 14,265 — 14,265 Substandard 76 — 76 49 125 Total home equity and lines of credit 14,341 — 14,341 49 14,390 Commercial and industrial Pass 9,899 43 9,942 — 9,942 Total commercial and industrial 9,899 43 9,942 — 9,942 Other loans - Pass 4 — 4 — 4 Total loans acquired 510,922 2,281 513,203 6,682 519,885 $ 3,305,528 $ 4,290 $ 3,309,818 $ 10,883 $ 3,320,701 December 31, 2018 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 $ 78,699 $ 218 $ 78,917 — $ 78,917 Special Mention — 395 395 — 395 Total 78,699 613 79,312 — 79,312 LTV => 35% Pass 408,830 325 409,155 — 409,155 Special Mention 1,137 — 1,137 — 1,137 Substandard 7,381 — 7,381 2,875 10,256 Total 417,348 325 417,673 2,875 420,548 Total commercial 496,047 938 496,985 2,875 499,860 One-to-four family residential LTV < 60% Pass 54,576 336 54,912 — 54,912 Special Mention — 747 747 — 747 Substandard 896 — 896 510 1,406 Total 55,472 1,083 56,555 510 57,065 LTV => 60% Pass 34,576 232 34,808 — 34,808 Substandard 528 — 528 32 560 Total 35,104 232 35,336 32 35,368 Total one-to-four family residential 90,576 1,315 91,891 542 92,433 Construction and land Pass 26,613 — 26,613 — 26,613 Total construction and land 26,613 — 26,613 — 26,613 Multifamily LTV < 35% Pass 170,534 298 170,832 — 170,832 Total 170,534 298 170,832 — 170,832 LTV => 35% Pass 1,756,443 439 1,756,882 — 1,756,882 Special Mention 613 — 613 — 613 Substandard 4,390 1,229 5,619 — 5,619 Total 1,761,446 1,668 1,763,114 — 1,763,114 Total multifamily 1,931,980 1,966 1,933,946 — 1,933,946 Home equity and lines of credit Pass 80,077 — 80,077 — 80,077 Special Mention 27 — 27 — 27 Substandard 137 — 137 74 211 Total home equity and lines of credit 80,241 — 80,241 74 80,315 Commercial and industrial loans Pass 43,640 — 43,640 — 43,640 Special Mention 430 — 430 — 430 Substandard 95 — 95 25 120 Total commercial and industrial loans 44,165 — 44,165 25 44,190 Other loans - Pass 1,518 2 1,520 — 1,520 Total originated loans held-for-investment $ 2,671,140 $ 4,221 $ 2,675,361 $ 3,516 $ 2,678,877 December 31, 2018 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 202,471 2,799 205,270 — 205,270 Special Mention 415 — 415 — 415 Substandard 62 6 68 374 442 Total 202,948 2,805 205,753 374 206,127 LTV => 60% Pass 19,504 — 19,504 — 19,504 Substandard — — — 246 246 Total 19,504 — 19,504 246 19,750 Total one-to-four family residential 222,452 2,805 225,257 620 225,877 Commercial LTV < 35% Pass 41,071 — 41,071 — 41,071 Special Mention 1,079 — 1,079 — 1,079 Substandard 1,185 151 1,336 281 1,617 Total 43,335 151 43,486 281 43,767 LTV => 35% Pass 73,986 749 74,735 — 74,735 Special Mention 4,315 128 4,443 — 4,443 Substandard 5,772 411 6,183 4,135 10,318 Total 84,073 1,288 85,361 4,135 89,496 Total commercial 127,408 1,439 128,847 4,416 133,263 Construction and land Pass 12,003 — 12,003 — 12,003 Total construction and land 12,003 — 12,003 — 12,003 Multifamily LTV < 35% Pass 137,141 — 137,141 — 137,141 Special Mention — 52 52 — 52 Substandard — — — 152 152 Total 137,141 52 137,193 152 137,345 LTV => 35% Pass 7,726 — 7,726 — 7,726 Substandard — — — 414 414 Total 7,726 — 7,726 414 8,140 Total multifamily 144,867 52 144,919 566 145,485 Home equity and lines of credit Pass 17,427 — 17,427 — 17,427 Substandard 79 — 79 77 156 Total home equity and lines of credit 17,506 — 17,506 77 17,583 Commercial and industrial loans Pass 11,888 45 11,933 — 11,933 Total commercial and industrial loans 11,888 45 11,933 — 11,933 Other 6 — 6 — 6 Total loans acquired 536,130 4,341 540,471 5,679 546,150 $ 3,207,270 $ 8,562 $ 3,215,832 $ 9,195 $ 3,225,027 The following table summarizes originated and acquired impaired loans as of June 30, 2019 , and December 31, 2018 (in thousands): June 30, 2019 December 31, 2018 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 $ — $ 139 $ — $ — $ 139 $ — LTV => 35% Pass 5,758 6,644 — 5,931 6,817 — Substandard 10,910 11,727 — 12,160 15,028 — One-to-four family residential LTV < 60% Pass 1,803 1,882 — 1,532 1,606 — Substandard 237 237 — 241 241 — LTV => 60% Pass 125 156 — 129 158 — Substandard 123 275 — 126 278 — Multifamily LTV < 35% Substandard 41 41 — 152 152 — LTV => 35% Pass 32 503 — 38 509 — Substandard 975 975 — 1,229 1,229 — Home equity and lines of credit Pass 25 25 — 28 28 — Commercial and industrial loans Substandard 45 115 — 52 119 — With a Related Allowance Recorded: Real estate loans: Commercial LTV => 35% Substandard 1,824 3,071 (239 ) — — — One-to-four family residential LTV < 60% Substandard 344 344 (1 ) 657 657 (18 ) LTV => 60% Home equity and lines of credit Substandard 33 33 (8 ) 33 33 (5 ) Commercial and industrial loans Special Mention 20 20 (4 ) 21 21 (3 ) Total: Real estate loans Commercial 18,492 21,581 (239 ) 18,091 21,984 — One-to-four family residential 2,632 2,894 (1 ) 2,685 2,940 (18 ) Multifamily 1,048 1,519 — 1,419 1,890 — Home equity and lines of credit 58 58 (8 ) 61 61 (5 ) Commercial and industrial loans 65 135 (4 ) 73 140 (3 ) $ 22,295 $ 26,187 $ (252 ) $ 22,329 $ 27,015 $ (26 ) Included in the above table at June 30, 2019 , are impaired loans with carrying balances of $15.8 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, 2018 , are loans with carrying balances of $16.6 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 June 30, 2019 , and December 31, 2018 , 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 six months ended June 30, 2019 , and June 30, 2018 (in thousands): Three Months Ended Six Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 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% Pass $ 5,801 $ 79 $ 4,664 $ 65 $ 5,844 $ 158 $ 5,197 $ 129 Substandard 10,979 57 9,650 75 11,373 129 9,681 150 One-to-four family residential LTV < 60% Pass 1,812 22 1,374 13 1,719 44 1,312 27 Substandard 238 1 246 4 239 4 248 4 LTV => 60% Pass 126 1 267 1 127 2 223 5 Substandard 124 3 129 — 125 6 131 3 Multifamily LTV < 35% Substandard 45 1 152 1 80 1 152 2 LTV => 35% Pass 34 4 46 4 35 8 467 8 Substandard 1,100 16 1,237 16 1,143 35 825 28 Home equity and lines of credit Pass 26 — 31 — 26 1 32 1 Commercial and industrial loans Substandard 46 131 — 48 — 132 — With a Related Allowance Recorded: Real estate loans: Commercial LTV => 35% Pass — 1,476 20 — — 984 40 Substandard 1,171 17 — — 781 17 — — One-to-four family residential LTV < 60% Pass — 204 2 — — 273 3 Substandard 345 5 674 4 449 10 782 8 LTV => 60% Pass — — — — — 89 — Home equity and lines of credit Substandard 33 35 33 1 35 1 Commercial and industrial loans Special Mention 20 23 — 20 — 23 1 Total: Real estate loans Commercial 17,951 153 15,790 160 17,998 304 15,862 319 One-to-four family residential 2,645 32 2,894 24 2,659 66 3,058 50 Multifamily 1,179 21 1,435 21 1,258 44 1,444 38 Home equity and lines of credit 59 — 66 — 59 2 67 2 Commercial and industrial loans 66 — 154 — 68 — 155 1 $ 21,900 $ 206 $ 20,339 $ 205 $ 22,042 $ 416 $ 20,586 $ 410 There were no loans modified as troubled debt restructurings (TDRs) during the three months ended June 30, 2019. There were two loans modified as TDR's during the six months ended June 30, 2019, both of which were modified to restructure payment terms. The following table summarizes loans that were modified in a TDR during the six months ended June 30, 2019 : Six Months Ended June 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 no loans modified as TDR's during the three and six months ended June 30, 2018 . At June 30, 2019 , and December 31, 2018 , we had TDRs of $19.7 million and $16.9 million , respectively. Management classifies all TDR's as impaired loans. Impaired loans are individually assessed to determine that the loan’s carrying value is not in excess of the estimated fair value of the collateral less cost to sell, if the loan is collateral dependent, or the present value of the expected future cash flows, if the loan is not collateral dependent. Management performs an evaluation of each impaired loan and generally obtains updated appraisals as part of the evaluation. In addition, management adjusts estimated fair values down to appropriately consider recent market conditions, our willingness to accept a lower sales price to effect a quick sale, and costs to dispose of any supporting collateral. Determining the estimated fair value of underlying collateral (and related costs to sell) can be difficult in illiquid real estate markets and is subject to significant assumptions and estimates. Management employs an independent third-party management firm that specializes in appraisal preparation and review to ascertain the reasonableness of updated appraisals. Projecting the expected cash flows under troubled debt restructurings which are not collateral dependent is inherently subjective and requires, among other things, an evaluation of the borrower’s current and projected financial condition. Actual results may be significantly different than our projections and our established allowance for loan losses on these loans, which could have a material effect on our financial results. At June 30, 2019 , and June 30, 2018 , there were no

Deposits

Deposits	6 Months Ended
	Jun. 30, 2019
Banking and Thrift [Abstract]
Deposits	Deposits Deposits account balances are summarized as follows (in thousands): June 30, 2019 December 31, 2018 Non-interest-bearing demand $ 386,784 $ 395,375 Interest-bearing negotiable orders of withdrawal (NOW) 486,529 458,012 Savings and money market 1,422,534 1,336,229 Certificates of deposit 1,004,344 1,096,896 Total deposits $ 3,300,191 $ 3,286,512 Interest expense on deposit accounts is summarized for the periods indicated (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Negotiable orders of withdrawal, savings, and money market $ 5,377 $ 2,312 $ 10,171 $ 4,455 Certificates of deposit 5,172 3,738 10,625 6,806 Total interest expense on deposit accounts $ 10,549 $ 6,050 $ 20,796 $ 11,261

Equity Incentive Plans

Equity Incentive Plans	6 Months Ended
	Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity Incentive Plans	Equity Incentive Plans The following table is a summary of the Company’s stock options outstanding as of June 30, 2019 , and changes therein during the six 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, 2018 3,251,595 $ 3.93 $ 13.51 5.62 Forfeited (15,000 ) 4.07 14.76 — Exercised (161,332 ) 2.61 8.06 — Outstanding - June 30, 2019 3,075,263 4.00 13.79 5.37 Exercisable - June 30, 2019 2,860,092 3.98 13.66 5.29 Expected future stock option expense related to the non-vested options outstanding as of June 30, 2019 , is $580,000 over a weighted average period of 1.08 years. The following is a summary of the status of the Company’s restricted stock awards as of June 30, 2019 , and changes therein during the six months then ended. Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2018 328,962 $ 14.31 Vested (233,360 ) 13.78 Forfeited (8,000 ) 14.76 Non-vested at June 30, 2019 87,602 $ 15.68 Expected future stock award expense related to the non-vested restricted share awards as of June 30, 2019 , is $957,000 over a weighted average period of 1.12 years. During the three months ended June 30, 2019 and 2018, the Company recorded $1.1 million and $1.3 million , respectively, of stock-based compensation related to the above plans. During the six months ended June 30, 2019 and 2018, the Company recorded $2.4 million and $2.7 million , respectively, of stock-based compensation related to the above plans. On May 22, 2019, the Company's 2019 Equity Incentive Plan (the “2019 EIP”) was approved by stockholders of the Company. Under the 2019 EIP, the maximum number of shares of stock that may be delivered to participants in the form of stock options and stock appreciation rights is 6,000,000 and 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. No shares of stock have been granted under the 2019 EIP. Upon approval of the 2019 EIP, the Northfield Bancorp, Inc. 2014 Equity Incentive Plan (the “2014 EIP”) was frozen and equity awards that would otherwise have been available for issuance are no longer available for grant. As of December 31, 2018, 142,154 restricted shares and 348,373 stock options which were available for grant are no longer available.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2019
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 June 30, 2019 , and December 31, 2018 , by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the Financial Accounting Standards Board ( “ 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 15 to the Consolidated Financial Statements of the Company’s 2018 Annual Report on Form 10-K. Fair Value Measurements at June 30, 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 $ 384,134 $ — $ 384,134 $ — REMICs: GSE 460,697 — 460,697 — Non-GSE 55 — 55 — 844,886 — 844,886 — Other debt securities Municipal bonds 273 — 273 — Corporate bonds 204,501 — 204,501 — 204,774 — 204,774 — Total debt securities available-for-sale 1,049,660 — 1,049,660 — Trading securities 10,214 10,214 — — Equity securities 269 269 — — Total $ 1,060,143 $ 10,483 $ 1,049,660 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 5,721 $ — $ — $ 5,721 One-to-four family residential mortgage 466 — — 466 Multifamily 32 — — 32 Home equity and lines of credit 25 — — 25 Total impaired real estate loans 6,244 — — 6,244 Commercial and industrial loans 14 — — 14 Total $ 6,258 $ — $ — $ 6,258 Fair Value Measurements at December 31, 2018 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 $ 314,788 $ — $ 314,788 $ — REMICs: GSE 250,163 — 250,163 — Non-GSE 58 — 58 — 565,009 — 565,009 — Other debt securities Municipal bonds 273 — 273 — Corporate bonds 242,749 — 242,749 — 243,022 — 243,022 — Total debt securities available-for-sale 808,031 — 808,031 — Trading securities 8,968 8,968 — — Equity securities 237 237 — — Total $ 817,236 $ 9,205 $ 808,031 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 4,847 $ — $ — $ 4,847 One-to-four family residential mortgage 765 — — 765 Multifamily 39 — — 39 Home equity and lines of credit 28 — — 28 Total impaired real estate loans 5,679 — — 5,679 Commercial and industrial loans 18 — — 18 Total $ 5,697 $ — $ — $ 5,697 The following table presents qualitative information for Level 3 assets measured at fair value on a non-recurring basis at June 30, 2019 , and December 31, 2018 (dollars in thousands): Fair Value Valuation Methodology Unobservable Inputs Range of Inputs June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Impaired loans $ 6,258 $ 5,697 Appraisals Discount for costs to sell 7.0% 7.0% Discount for quick sale 10% to 15% 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 June 30, 2019 , and December 31, 2018 . 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 six months ended June 30, 2019 . 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 both June 30, 2019 and December 31, 2018 , the Company had impaired loans held-for-investment (excluding PCI loans) with outstanding principal balances of $10.2 million , which were recorded at their estimated fair value of $6.3 million at June 30, 2019 and $5.7 million at December 31, 2018 . The Company recorded a net increase in the specific reserve for impaired loans of $226,000 for the six months ended June 30, 2019 , and a net decrease in the specific reserve for impaired loans of $39,000 for the six months ended June 30, 2018, and net charge-offs of $215,000 for the six months ended June 30, 2019 and net recoveries of $127,000 for the six months ended June 30, 2018 , 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. Other Real Estate Owned (OREO): At June 30, 2019 , and December 31, 2018, the Company had no assets acquired through foreclosure, or deed in lieu of foreclosure. These assets, when held, are recorded at estimated fair value, less estimated selling costs when acquired, establishing a new cost basis. Estimated fair value is generally based on independent appraisals. These appraisals include adjustments to comparable assets based on the appraisers’ market knowledge and experience, and are considered Level 3 inputs. When an asset is acquired, the excess of the loan balance over fair value, less estimated selling costs, is charged to the allowance for loan losses. If the estimated fair value of the asset declines, a write-down is recorded through non-interest expense. The valuation of foreclosed assets is subjective in nature and may be adjusted in the future because of changes in economic conditions. In addition, the Company may be required, from time to time, to measure the fair value of certain other financial assets on a nonrecurring basis in accordance with U.S. GAAP. The adjustments to fair value usually result from the application of lower-of-cost-or-market accounting or write downs of individual assets. Fair Value of Financial Instruments The FASB ASC Topic for Financial Instruments requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The following methods and assumptions were used to estimate the fair value of other financial assets and financial liabilities not already discussed above: (a) Cash and Cash Equivalents Cash and cash equivalents are short-term in nature with original maturities of three months or less; the carrying amount approximates fair value. Certificates of deposit having original terms of six-months or less; the carrying value generally approximates fair value. Certificates of deposit with an original maturity of six months or greater; the fair value is derived from discounted cash flows. (b) Debt Securities (Held to Maturity) The estimated fair values for substantially all of our securities are obtained from an independent nationally recognized pricing service. The independent pricing service utilizes market prices of same or similar securities whenever such prices are available. Prices involving distressed sellers are not utilized in determining fair value. Where necessary, the independent third-party pricing service estimates fair value using models employing techniques such as discounted cash flow analysis. The assumptions used in these models typically include assumptions for interest rates, credit losses, and prepayments, utilizing market observable data where available. (c) Investments in Equity Securities at Net Asset Value Per Share The Company uses net asset value as a practical expedient to record its investment in a private SBA Loan Fund since the shares in the fund are not publicly traded, do not have a readily determinable fair value and the net asset value per share is calculated in a manner consistent with the measurement principles of an investment company. (d) Federal Home Loan Bank of New York Stock The fair value for Federal Home Loan Bank of New York (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. The estimated fair value of the Company’s financial instruments at June 30, 2019 , and December 31, 2018 , is presented in the following tables (in thousands): June 30, 2019 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 46,907 $ 46,907 $ — $ — $ 46,907 Trading securities 10,214 10,214 — — 10,214 Debt securities available-for-sale 1,049,660 — 1,049,660 — 1,049,660 Debt securities held-to-maturity 8,872 — 8,877 — 8,877 Equity securities (1) 269 269 — — 269 Federal Home Loan Bank of New York stock, at cost 32,330 — 32,330 — 32,330 Net loans held-for-investment 3,310,946 — — 3,351,040 3,351,040 Financial liabilities: Deposits $ 3,300,191 $ — $ 3,306,004 $ — $ 3,306,004 Borrowed funds 695,105 — 698,569 — 698,569 Advance payments by borrowers for taxes and insurance 20,817 — 20,817 — 20,817 December 31, 2018 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 77,762 $ 77,762 $ — $ — $ 77,762 Trading securities 8,968 8,968 — — 8,968 Debt securities available-for-sale 808,031 — 808,031 — 808,031 Debt securities held-to-maturity 9,505 — 9,249 — 9,249 Equity securities (1) 237 237 — 237 Federal Home Loan Bank of New York stock, at cost 22,517 — 22,517 — 22,517 Net loans held-for-investment 3,217,673 — — 3,236,136 3,236,136 Financial liabilities: Deposits $ 3,286,512 $ — $ 3,291,085 $ — $ 3,291,085 Borrowed funds 408,891 — 403,476 — 403,476 Advance payments by borrowers for taxes and insurance 18,007 — 18,007 — 18,007 (1) Excludes investments measured at net asset value of $2.1 million at June 30, 2019 and $1.0 million at December 31, 2018 , which have 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	6 Months Ended
	Jun. 30, 2019
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 (dollars in thousands, except per share data): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Net income available to common stockholders $ 8,204 $ 10,612 $ 16,975 $ 21,056 Weighted average shares outstanding-basic 46,855,647 46,184,918 46,897,546 45,983,895 Effect of non-vested restricted stock and stock options outstanding 416,043 925,059 381,650 1,072,404 Weighted average shares outstanding-diluted 47,271,690 47,109,977 47,279,196 47,056,299 Earnings per share-basic $ 0.18 $ 0.23 $ 0.36 $ 0.46 Earnings per share-diluted $ 0.17 $ 0.23 $ 0.36 $ 0.45 Anti-dilutive shares 848,844 858,844 962,296 872,294

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2019
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 includes rental income from subleasing one of the Company's branches to a third party and income and gains or losses, net, related to OREO. For these transactions, revenue is recognized at the time the transaction occurs. The following table summarizes non-interest income for the periods indicated (dollars in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Fees and service charges for customer services: Service charges $ 812 $ 771 $ 1,594 $ 1,612 ATM and card interchange fees 339 313 640 580 Investment fees 56 63 113 169 Total fees and service charges for customer services 1,207 1,147 2,347 2,361 Income on bank owned life insurance (1) 907 914 1,804 1,868 Gains on available-for-sale debt securities, net (1) 59 116 214 171 Gains on trading securities, net (1) 343 197 1,429 302 Other 50 71 86 147 Total non-interest income $ 2,566 $ 2,445 $ 5,880 $ 4,849 (1) Not in scope of Topic 606

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Pronouncements Adopted ASU No. 2016-02. In February 2016, the FASB issued ASU No. 2016-02, Leases ( “ Topic 842 ” ) , which requires all lessees to recognize a lease liability and a right-of-use asset, measured at the present value of the future minimum lease payments, at the lease commencement date for leases classified as operating leases as well as finance leases. Under this guidance, lessor accounting is largely unchanged. This ASU became effective for annual and interim periods for the Company on January 1, 2019. The Company adopted the standard by applying the alternative transition method whereby comparative periods were not restated, and no cumulative effect adjustment to the opening balance of retained earnings was recognized as of January 1, 2019. The Company also elected the ASU’s package of three practical expedients, which allowed the Company to forego a reassessment of (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) the initial direct costs for any existing leases. The Company also elected not to apply the recognition requirements of the ASU to any short-term leases (as defined by related accounting guidance) and will account for lease and non-lease components separately because such amounts are readily determinable under most lease contracts. The adoption of this standard resulted in the Company recognizing operating lease right-of-use assets and related operating lease liabilities totaling $43.6 million and $47.3 million respectively, as of January 1, 2019 . The adoption of this ASU did not have a material impact on the Company’s consolidated results of operations. See Note 10, Leases, for further disclosures. ASU No. 2017-08. In March 2017, the FASB issued ASU No. 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities . The amendments in this update require the premium on callable debt securities to be amortized to the earliest call date rather than the maturity date; however, securities held at a discount continue to be amortized to maturity. The amendments apply only to debt securities purchased at a premium that are callable at fixed prices and on preset dates. The amendments more closely align interest income recorded on debt securities held at a premium or discount with the economics of the underlying instrument. This ASU became effective for the Company on January 1, 2019, and did not have a material impact on the Company's consolidated financial statements. ASU No. 2018-07. In June 2018, the FASB issued ASU No. 2018-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which is intended to align the accounting for share-based payment awards issued to employees and nonemployees. The guidance applies to nonemployee awards issued in exchange for goods or services used or consumed in an entity’s own operations and to awards granted by an investor to employees and nonemployees of an equity method investee for goods or services used or consumed in the investee’s operations. There are no new disclosure requirements. This ASU became effective for the Company on January 1, 2019. Adoption of this ASU did not have an impact on the Company's consolidated financial statements, as share-based payment awards to nonemployee Directors are accounted for in the same manner as share-based payment awards for employees. Accounting Pronouncements Not Yet Adopted ASU 2019-05. In May 2019, the FASB issued ASU No. 2019-05, “Financial Instruments - Credit Losses (Topic 326); Targeted Transition Relief.” This ASU allows entities to irrevocably elect, upon adoption of ASU 2016-13, the fair value option on financial instruments that (1) were previously recorded at amortized cost and (2) are within the scope of ASC 326-20 if the instruments are eligible for the fair value option under ASC 825-10. The fair value option election does not apply to held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. ASU 2019-05 has the same effective date as ASU 2016-13 (January 1, 2020). The Company does not expect to elect the fair value option, and therefore, ASU 2019-05 is not expected to impact the Company’s Consolidated Financial Statements. ASU 2019-04. In April 2019, the FASB issued ASU No. 2019-04, "Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments" , that clarifies and improves areas of guidance related to the recently issued standards on credit losses (ASU 2016-13), hedging (ASU 2017-12), and recognition and measurement of financial instruments (ASU 2016-01). The amendments generally have the same effective dates as their related standards. The Company does not expect the amendments of ASU 2019-04 will have a material impact on its Consolidated Financial Statements. 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 amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. ASU No. 2018-15 is not expected to have a material impact on the Company’s Consolidated Financial Statements. ASU No. 2018-14. In August 2018, the FASB issued ASU No. 2018-14, “Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans.” This ASU makes minor changes to the disclosure requirements for employers that sponsor defined benefit pension and/or other postretirement benefit plans. ASU 2018-14 is effective for fiscal years ending after December 15, 2020; early adoption is permitted. As ASU 2018-14 only revises disclosure requirements, it will not have an impact on the Company’s Consolidated Financial Statements. 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 simplifies the subsequent measurement of goodwill impairment by eliminating the requirement to calculate the implied fair value of goodwill (i.e., the current Step 2 of the goodwill impairment test) to measure a goodwill impairment charge. As amended, the goodwill impairment test will consist of one step comparing the fair value of a reporting unit with its carrying amount. A goodwill impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value. The ASU is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim and annual goodwill impairment testing dates after January 1, 2017. The adoption of this pronouncement is not expected to have an effect on the Company's consolidated financial statements. ASU No. 2016-13. In June 2016, the FASB issued No. ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model (referred to as the current expected credit loss (“CECL”) model. Under this model, entities will estimate credit losses over the entire contractual term of the instrument from the date of initial recognition of that instrument. Current US GAAP is based on an incurred loss model that delays recognition of credit losses until it is probable the loss has been incurred. Accordingly, it is anticipated that credit losses will be recognized earlier under the CECL model than under the incurred loss model. ASU No. 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019; early adoption is permitted for interim and annual reporting periods beginning after December 15, 2018. The Company continues to evaluate the potential effect of adoption of this pronouncement on its consolidated financial statements by identifying key interpretive issues, assessing its processes, portfolio segmentation, model development, and identifying the data and system requirements against the guidance. As part of the evaluation process, the Company has established a CECL cross-function working group that includes individuals from credit, risk management, finance, audit and lending to assess processes and has also contracted with a third-party vendor to implement enhanced modeling techniques that incorporate the loss measurement requirements in these amendments as part of adopting the ASU. We are currently working through our implementation plan which includes assessment and documentation of processes, internal controls and data sources; model development, documentation and validation; and system configuration, among other things. The adoption of ASU No. 2016-13 may result in an increase in the allowance for loan losses as a result of changing from an incurred loss model, which encompasses allowances for current known and inherent losses within the portfolio, to an expected losses model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. However, as the impact of adopting the new guidance is expected to be heavily influenced by an assessment of the composition, characteristics, and credit quality of the Company’s loan portfolio as well as the economic conditions in effect at the adoption date, management is currently unable to reasonably estimate the impact of adopting the new standard.

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases	Leases Effective January 1, 2019, the Company adopted Accounting Standards Update (“ASU”) No. 2016-02, Leases ( “ Topic 842 ” ) and all subsequent ASU's that modified Topic 842, as further explained in Note 12, Recent Accounting Pronouncements. The Company’s leases primarily relate to real estate property for branches and office space with terms extending from 15 months up to 36 years . At June 30, 2019 , all of the Company's leases are classified as operating leases. 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 in determining the present value of lease payments. Certain leases include options to renew, with one or more renewal terms ranging from five to ten years . As these extension options are not generally considered reasonably certain of renewal, they are not included in the lease term. At June 30, 2019 , the Company’s operating lease right-of-use assets and related lease liabilities included in the consolidated balance sheet were $42.4 million and $46.3 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 income. Supplemental lease information at or for the three and six months ended June 30, 2019 is as follows (dollars in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2019 Operating lease cost $ 1,551 $ 3,017 Variable lease cost 711 1,489 Net lease cost $ 2,262 $ 4,506 Cash paid for amounts included in measurement of operating lease liabilities $ 1,513 $ 2,840 Right-of-use assets obtained in exchange for new operating lease liabilities $ — $ 1,013 Weighted average remaining lease term at June 30, 2019 12.95 years Weighted average discount rate at June 30, 2019 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 (dollars in thousands): Year Amount 2019 $ 3,061 2020 6,156 2021 5,729 2022 5,068 2023 4,975 Thereafter 35,288 Total lease payments 60,277 Less: imputed interest 13,956 Present value of lease liabilities $ 46,321 As of June 30, 2019 , the Company had not entered into any leases that have not yet commenced. The following table summarizes projected minimum annual rental payments for operating leases under FASB ASC 840 “Leases” as of December 31, 2018 (dollars in thousands): Rental Payments Operating Leases Year ending December 31: 2019 $ 5,735 2020 5,949 2021 5,512 2022 4,844 2023 4,744 Thereafter 35,260 Total minimum lease payments $ 62,044 Net rental expense included in occupancy expense under FASB ASC 840 was $1.5 million and $2.8 million for the three and six months ended June 30, 2018

Subsequent Event

Subsequent Event	6 Months Ended
	Jun. 30, 2019
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event In July 2019, two loans that had been previously charged-off, one in full and one partly charged-off and had cash payments for interest applied to principal, were repaid in full, resulting in an aggregate recovery of $2.3 million , which will be recognized in the third quarter of 2019 through the provision for loan losses and interest income. Additionally, the Company expects to receive bank owned life insurance proceeds in excess of the cash surrender value of the related policies of approximately $2.4 million , which will also be recognized in the third quarter of 2019, in non-interest income.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting	The consolidated financial statements are comprised of the accounts of Northfield Bancorp, Inc. (the “ Company ” ) and its wholly owned subsidiaries, Northfield Investments, Inc. and Northfield Bank (the “ Bank ” ), and the Bank’s wholly-owned significant subsidiaries, NSB Services Corp. and NSB Realty Trust. All significant intercompany accounts and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting solely of normal and recurring adjustments) necessary for the fair presentation of the consolidated financial condition and the consolidated results of operations for the unaudited periods presented have been included. The results of operations and other data presented for the three and six months ended June 30, 2019 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2019 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 statements of financial condition and results of operations 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 income taxes. 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 Annual Report on Form 10-K for the year ended December 31, 2018
Fair Value Measurements	The following tables present the assets reported on the consolidated balance sheets at their estimated fair value as of June 30, 2019 , and December 31, 2018 , by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the Financial Accounting Standards Board ( “ 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.
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 Accounting Pronouncements Adopted ASU No. 2016-02. In February 2016, the FASB issued ASU No. 2016-02, Leases ( “ Topic 842 ” ) , which requires all lessees to recognize a lease liability and a right-of-use asset, measured at the present value of the future minimum lease payments, at the lease commencement date for leases classified as operating leases as well as finance leases. Under this guidance, lessor accounting is largely unchanged. This ASU became effective for annual and interim periods for the Company on January 1, 2019. The Company adopted the standard by applying the alternative transition method whereby comparative periods were not restated, and no cumulative effect adjustment to the opening balance of retained earnings was recognized as of January 1, 2019. The Company also elected the ASU’s package of three practical expedients, which allowed the Company to forego a reassessment of (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) the initial direct costs for any existing leases. The Company also elected not to apply the recognition requirements of the ASU to any short-term leases (as defined by related accounting guidance) and will account for lease and non-lease components separately because such amounts are readily determinable under most lease contracts. The adoption of this standard resulted in the Company recognizing operating lease right-of-use assets and related operating lease liabilities totaling $43.6 million and $47.3 million respectively, as of January 1, 2019 . The adoption of this ASU did not have a material impact on the Company’s consolidated results of operations. See Note 10, Leases, for further disclosures. ASU No. 2017-08. In March 2017, the FASB issued ASU No. 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities . The amendments in this update require the premium on callable debt securities to be amortized to the earliest call date rather than the maturity date; however, securities held at a discount continue to be amortized to maturity. The amendments apply only to debt securities purchased at a premium that are callable at fixed prices and on preset dates. The amendments more closely align interest income recorded on debt securities held at a premium or discount with the economics of the underlying instrument. This ASU became effective for the Company on January 1, 2019, and did not have a material impact on the Company's consolidated financial statements. ASU No. 2018-07. In June 2018, the FASB issued ASU No. 2018-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which is intended to align the accounting for share-based payment awards issued to employees and nonemployees. The guidance applies to nonemployee awards issued in exchange for goods or services used or consumed in an entity’s own operations and to awards granted by an investor to employees and nonemployees of an equity method investee for goods or services used or consumed in the investee’s operations. There are no new disclosure requirements. This ASU became effective for the Company on January 1, 2019. Adoption of this ASU did not have an impact on the Company's consolidated financial statements, as share-based payment awards to nonemployee Directors are accounted for in the same manner as share-based payment awards for employees. Accounting Pronouncements Not Yet Adopted ASU 2019-05. In May 2019, the FASB issued ASU No. 2019-05, “Financial Instruments - Credit Losses (Topic 326); Targeted Transition Relief.” This ASU allows entities to irrevocably elect, upon adoption of ASU 2016-13, the fair value option on financial instruments that (1) were previously recorded at amortized cost and (2) are within the scope of ASC 326-20 if the instruments are eligible for the fair value option under ASC 825-10. The fair value option election does not apply to held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. ASU 2019-05 has the same effective date as ASU 2016-13 (January 1, 2020). The Company does not expect to elect the fair value option, and therefore, ASU 2019-05 is not expected to impact the Company’s Consolidated Financial Statements. ASU 2019-04. In April 2019, the FASB issued ASU No. 2019-04, "Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments" , that clarifies and improves areas of guidance related to the recently issued standards on credit losses (ASU 2016-13), hedging (ASU 2017-12), and recognition and measurement of financial instruments (ASU 2016-01). The amendments generally have the same effective dates as their related standards. The Company does not expect the amendments of ASU 2019-04 will have a material impact on its Consolidated Financial Statements. 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 amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. ASU No. 2018-15 is not expected to have a material impact on the Company’s Consolidated Financial Statements. ASU No. 2018-14. In August 2018, the FASB issued ASU No. 2018-14, “Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans.” This ASU makes minor changes to the disclosure requirements for employers that sponsor defined benefit pension and/or other postretirement benefit plans. ASU 2018-14 is effective for fiscal years ending after December 15, 2020; early adoption is permitted. As ASU 2018-14 only revises disclosure requirements, it will not have an impact on the Company’s Consolidated Financial Statements. 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 simplifies the subsequent measurement of goodwill impairment by eliminating the requirement to calculate the implied fair value of goodwill (i.e., the current Step 2 of the goodwill impairment test) to measure a goodwill impairment charge. As amended, the goodwill impairment test will consist of one step comparing the fair value of a reporting unit with its carrying amount. A goodwill impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value. The ASU is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim and annual goodwill impairment testing dates after January 1, 2017. The adoption of this pronouncement is not expected to have an effect on the Company's consolidated financial statements. ASU No. 2016-13. In June 2016, the FASB issued No. ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model (referred to as the current expected credit loss (“CECL”) model. Under this model, entities will estimate credit losses over the entire contractual term of the instrument from the date of initial recognition of that instrument. Current US GAAP is based on an incurred loss model that delays recognition of credit losses until it is probable the loss has been incurred. Accordingly, it is anticipated that credit losses will be recognized earlier under the CECL model than under the incurred loss model. ASU No. 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019; early adoption is permitted for interim and annual reporting periods beginning after December 15, 2018. The Company continues to evaluate the potential effect of adoption of this pronouncement on its consolidated financial statements by identifying key interpretive issues, assessing its processes, portfolio segmentation, model development, and identifying the data and system requirements against the guidance. As part of the evaluation process, the Company has established a CECL cross-function working group that includes individuals from credit, risk management, finance, audit and lending to assess processes and has also contracted with a third-party vendor to implement enhanced modeling techniques that incorporate the loss measurement requirements in these amendments as part of adopting the ASU. We are currently working through our implementation plan which includes assessment and documentation of processes, internal controls and data sources; model development, documentation and validation; and system configuration, among other things. The adoption of ASU No. 2016-13 may result in an increase in the allowance for loan losses as a result of changing from an incurred loss model, which encompasses allowances for current known and inherent losses within the portfolio, to an expected losses model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. However, as the impact of adopting the new guidance is expected to be heavily influenced by an assessment of the composition, characteristics, and credit quality of the Company’s loan portfolio as well as the economic conditions in effect at the adoption date, management is currently unable to reasonably estimate the impact of adopting the new standard.

Debt Securities Available-for_2

Debt Securities Available-for-Sale (Tables)	6 Months Ended
	Jun. 30, 2019
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 June 30, 2019 , and December 31, 2018 (in thousands): June 30, 2019 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: Government sponsored enterprises (GSE) $ 379,322 $ 5,749 $ 937 $ 384,134 Real estate mortgage investment conduits (REMICs): GSE 460,990 2,308 2,601 460,697 Non-GSE 56 — 1 55 840,368 8,057 3,539 844,886 Other debt securities: Municipal bonds 270 3 — 273 Corporate bonds 203,313 1,278 90 204,501 203,583 1,281 90 204,774 Total debt securities available-for-sale $ 1,043,951 $ 9,338 $ 3,629 $ 1,049,660 December 31, 2018 Gross Gross Estimated Amortized unrealized unrealized fair cost gains losses value Mortgage-backed securities: Pass-through certificates: GSE $ 317,530 $ 800 $ 3,542 $ 314,788 REMICs: GSE 258,050 92 7,979 250,163 Non-GSE 59 — 1 58 575,639 892 11,522 565,009 Other debt securities: Municipal bonds 270 3 — 273 Corporate bonds 244,892 72 2,215 242,749 245,162 75 2,215 243,022 Total debt securities available-for-sale $ 820,801 $ 967 $ 13,737 $ 808,031
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 June 30, 2019 (in thousands): Available-for-sale Amortized cost Estimated fair value Due in one year or less $ 59,847 $ 60,136 Due after one year through five years 138,799 139,708 Due after five years through ten years 4,937 4,930 $ 203,583 $ 204,774
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 June 30, 2019 , and December 31, 2018 , were as follows (in thousands): June 30, 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 $ 7 $ 3,302 $ 930 $ 63,707 $ 937 $ 67,009 REMICs: GSE 32 96,899 2,569 123,353 2,601 220,252 Non-GSE — — 1 55 1 55 Other debt securities: Corporate bonds 30 24,024 60 19,977 90 44,001 Total $ 69 $ 124,225 $ 3,560 $ 207,092 $ 3,629 $ 331,317 December 31, 2018 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 $ 404 $ 82,781 $ 3,138 $ 100,109 $ 3,542 $ 182,890 REMICs: GSE 269 46,921 7,710 181,512 7,979 228,433 Non-GSE — — 1 58 1 58 Other debt securities: Corporate bonds 1,703 173,219 512 25,675 2,215 198,894 Total $ 2,376 $ 302,921 $ 11,361 $ 307,354 $ 13,737 $ 610,275

Debt Securities Held-to-Matur_2

Debt Securities Held-to-Maturity (Tables)	6 Months Ended
	Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Securities Held-to-Maturity	The following is a summary of debt securities held-to-maturity at June 30, 2019 , and December 31, 2018 (in thousands): June 30, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 8,872 $ 47 $ 42 $ 8,877 Total securities held-to-maturity $ 8,872 $ 47 $ 42 $ 8,877 December 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Mortgage-backed securities: Pass-through certificates: GSEs $ 9,505 $ — $ 256 $ 9,249 Total securities held-to-maturity $ 9,505 $ — $ 256 $ 9,249
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 June 30, 2019 and December 31, 2018 , were as follows (in thousands): June 30, 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 $ — $ — $ 42 $ 3,746 $ 42 $ 3,746 Total securities held-to-maturity $ — $ — $ 42 $ 3,746 $ 42 $ 3,746 December 31, 2018 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 $ 34 $ 2,133 $ 222 $ 7,116 $ 256 $ 9,249 Total securities held-to-maturity $ 34 $ 2,133 $ 222 $ 7,116 $ 256 $ 9,249

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Net Loans Held-for-Investment	Net loans held-for-investment are as follows (in thousands): June 30, December 31, 2019 2018 Real estate loans: Multifamily $ 2,029,205 $ 1,930,535 Commercial mortgage 511,711 499,311 One-to-four family residential mortgage 88,713 91,371 Home equity and lines of credit 85,506 78,593 Construction and land 33,557 26,552 Total real estate loans 2,748,692 2,626,362 Commercial and industrial loans 42,660 44,104 Other loans 2,028 1,519 Total commercial and industrial and other loans 44,688 45,623 Deferred loan cost, net 7,436 6,892 Originated loans held-for-investment, net 2,800,816 2,678,877 PCI Loans 18,077 20,143 Loans acquired: One-to-four family residential mortgage 229,941 225,877 Multifamily 131,628 145,485 Commercial mortgage 125,599 133,263 Home equity and lines of credit 14,390 17,583 Construction and land 8,381 12,003 Total acquired real estate loans 509,939 534,211 Commercial and industrial loans 9,942 11,933 Other loans 4 6 Total loans acquired, net 519,885 546,150 Loans held-for-investment, net 3,338,778 3,245,170 Allowance for loan losses (27,832 ) (27,497 ) Net loans held-for-investment $ 3,310,946 $ 3,217,673
Summary of Accretable Yield	The following table details the accretion of interest income for PCI loans for the three and six months ended June 30, 2019 and June 30, 2018 (in thousands): At or for the three months ended June 30, At or for the six months ended June 30, 2019 2018 2019 2018 Balance at the beginning of period $ 20,797 $ 23,412 $ 21,846 $ 24,502 Accretion into interest income (1,003 ) (1,026 ) (2,052 ) (2,116 ) Balance at end of period $ 19,794 $ 22,386 $ 19,794 $ 22,386
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 six months ended June 30, 2019 , and June 30, 2018 (in thousands): Three Months Ended June 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 $ 5,382 $ 370 $ 574 $ 18,346 $ 336 $ 1,376 $ 92 $ 26,476 $ 1,010 $ — $ 27,486 Charge-offs — — — — — (57 ) (123 ) (180 ) — (53 ) (233 ) Recoveries 13 72 — — — — 1 86 — 2 88 Provisions (credit) (64 ) (208 ) 10 38 81 272 176 305 — 186 491 Ending balance $ 5,331 $ 234 $ 584 $ 18,384 $ 417 $ 1,591 $ 146 $ 26,687 $ 1,010 $ 135 $ 27,832 Three Months Ended June 30, 2018 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 $ 5,213 $ 455 $ 463 $ 17,412 $ 225 $ 1,337 $ 113 $ 25,218 $ 951 $ 3 $ 26,172 Charge-offs — — — — — — — — — — — Recoveries 12 — — 26 — — — 38 — 2 40 Provisions (credit) 493 (71 ) (25 ) 165 54 65 (6 ) 675 — (5 ) 670 Ending balance $ 5,718 $ 384 $ 438 $ 17,603 $ 279 $ 1,402 $ 107 $ 25,931 $ 951 $ — $ 26,882 Six Months Ended June 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 (6 ) — — — — (83 ) (123 ) (212 ) — (112 ) (324 ) Recoveries 25 72 — — — — 1 98 — 11 109 Provisions/(credit) (318 ) (180 ) 121 300 126 105 160 314 — 236 550 Ending balance $ 5,331 $ 234 $ 584 $ 18,384 $ 417 $ 1,591 $ 146 $ 26,687 $ 1,010 $ 135 $ 27,832 Six Months Ended June 30, 2018 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 $ 5,196 $ 503 $ 610 $ 17,374 $ 122 $ 1,273 $ 94 $ 25,172 $ 951 $ 37 $ 26,160 Charge-offs (3 ) — — — (60 ) — — (63 ) — (1 ) (64 ) Recoveries 28 — — 26 — 20 — 74 — 8 82 Provisions/(credit) 497 (119 ) (172 ) 203 217 109 13 748 — (44 ) 704 Ending balance $ 5,718 $ 384 $ 438 $ 17,603 $ 279 $ 1,402 $ 107 $ 25,931 $ 951 $ — $ 26,882 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 June 30, 2019 , and December 31, 2018 (in thousands): June 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: Ending balance: individually evaluated for impairment $ 104 $ 1 $ — $ — $ 8 $ 4 $ — $ 117 $ — $ 135 $ 252 Ending balance: collectively evaluated for impairment $ 5,227 $ 233 $ 584 $ 18,384 $ 409 $ 1,587 $ 146 $ 26,570 $ 1,010 $ — $ 27,580 Loans, net: Ending balance $ 512,308 $ 90,232 $ 33,573 $ 2,032,518 $ 87,389 $ 42,768 $ 2,028 $ 2,800,816 $ 18,077 $ 519,885 $ 3,338,778 Ending balance: individually evaluated for impairment $ 14,362 $ 1,854 $ — $ 1,007 $ 58 $ 65 $ — $ 17,346 $ — $ 4,949 $ 22,295 Ending balance: collectively evaluated for impairment $ 497,946 $ 88,378 $ 33,573 $ 2,031,511 $ 87,331 $ 42,703 $ 2,028 $ 2,783,470 $ 18,077 $ 514,936 $ 3,316,483 December 31, 2018 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 $ — $ 18 $ — $ — $ 5 $ 3 $ — $ 26 $ — $ — $ 26 Ending balance: collectively evaluated for impairment $ 5,630 $ 324 $ 463 $ 18,084 $ 286 $ 1,566 $ 108 $ 26,461 $ 1,010 $ — $ 27,471 Loans, net: Ending balance $ 499,860 $ 92,433 $ 26,613 $ 1,933,946 $ 80,315 $ 44,190 $ 1,520 $ 2,678,877 $ 20,143 $ 546,150 $ 3,245,170 Ending balance: individually evaluated for impairment $ 15,252 $ 1,893 $ — $ 1,268 $ 61 $ 73 $ — $ 18,547 $ — $ 3,782 $ 22,329 Ending balance: collectively evaluated for impairment $ 484,608 $ 90,540 $ 26,613 $ 1,932,678 $ 80,254 $ 44,117 $ 1,520 $ 2,660,330 $ 20,143 $ 542,368 $ 3,222,841
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 June 30, 2019 , and December 31, 2018 (in thousands): At June 30, 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 $ 204,081 $ 1,822,249 $ 84,114 $ 417,164 $ 54,093 $ 33,994 $ 33,573 $ 87,107 $ 42,301 $ 2,028 $ 2,780,704 Special Mention — 903 387 1,114 732 — — 26 380 — 3,542 Substandard — 5,285 — 9,529 1,079 334 — 256 87 — 16,570 Originated loans held-for-investment, net $ 204,081 $ 1,828,437 $ 84,501 $ 427,807 $ 55,904 $ 34,328 $ 33,573 $ 87,389 $ 42,768 $ 2,028 $ 2,800,816 At December 31, 2018 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 $ 170,832 $ 1,756,882 $ 78,917 $ 409,155 $ 54,912 $ 34,808 $ 26,613 $ 80,077 $ 43,640 $ 1,520 $ 2,657,356 Special Mention — 613 395 1,137 747 — — 27 430 — 3,349 Substandard — 5,619 — 10,256 1,406 560 — 211 120 — 18,172 Originated loans held-for-investment, net $ 170,832 $ 1,763,114 $ 79,312 $ 420,548 $ 57,065 $ 35,368 $ 26,613 $ 80,315 $ 44,190 $ 1,520 $ 2,678,877
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 June 30, 2019 , and December 31, 2018 , 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): June 30, 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 $ — $ — $ 3,548 $ 3,548 $ — $ 3,548 Total commercial — — 3,548 3,548 — 3,548 One-to-four family residential LTV < 60% Substandard 192 — 308 500 — 500 Total 192 — 308 500 — 500 LTV => 60% Substandard — — 31 31 — 31 Total one-to-four family residential 192 — 339 531 — 531 Home equity and lines of credit Substandard 70 — 52 122 — 122 Total home equity and lines of credit 70 — 52 122 — 122 Total non-performing loans held-for-investment, originated 262 — 3,939 4,201 — 4,201 Loans acquired: Real estate loans: Commercial LTV < 35% Substandard 83 — 191 274 — 274 LTV => 35% Substandard 3,571 1,308 533 5,412 — 5,412 Total commercial 3,654 1,308 724 5,686 — 5,686 One-to-four family residential LTV < 60% Substandard — 194 85 279 6 285 LTV => 60% Substandard 123 — 93 216 — 216 Total one-to-four family residential 123 194 178 495 6 501 Multifamily LTV < 35% Substandard 41 — — 41 — 41 LTV => 35% Substandard — 406 — 406 — 406 Total multifamily 41 406 — 447 — 447 Home equity and lines of credit Substandard — — 28 28 20 48 Total home equity and lines of credit — — 28 28 20 48 Total non-performing loans acquired 3,818 1,908 930 6,656 26 6,682 Total non-performing loans $ 4,080 $ 1,908 $ 4,869 $ 10,857 $ 26 $ 10,883 December 31, 2018 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 $ — $ 287 $ 2,588 $ 2,875 $ — $ 2,875 Total commercial — 287 2,588 2,875 — 2,875 One-to-four family residential LTV < 60% Substandard — 432 77 509 — 509 LTV => 60% Substandard — 32 — 32 — 32 Total one-to-four family residential — 464 77 541 — 541 Home equity and lines of credit Substandard 75 — — 75 — 75 Total home equity and lines of credit 75 — — 75 — 75 Commercial and industrial loans Substandard — — 25 25 — 25 Total commercial and industrial loans — — 25 25 — 25 Total non-performing loans held-for-investment, originated 75 751 2,690 3,516 — 3,516 Loans acquired: Real estate loans: Commercial LTV < 35% Substandard 87 — 194 281 — 281 LTV => 35% Substandard — 764 3,371 4,135 — 4,135 Total commercial 87 764 3,565 4,416 — 4,416 One-to-four family residential LTV < 60% Substandard — 199 169 368 6 374 LTV => 60% Substandard 126 — 93 219 27 246 Total one-to-four family residential 126 199 262 587 33 620 Multifamily LTV < 35% Substandard 152 — — 152 — 152 LTV => 35% Substandard — 414 — 414 — 414 Total multifamily 152 414 — 566 — 566 Home equity and lines of credit Substandard — — 77 77 — 77 Total home equity and lines of credit — — 77 77 — 77 Total non-performing loans acquired 365 1,377 3,904 5,646 33 5,679 Total non-performing loans $ 440 $ 2,128 $ 6,594 $ 9,162 $ 33 $ 9,195
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 June 30, 2019 , and December 31, 2018 (in thousands): June 30, 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 $ 83,891 $ 223 $ 84,114 $ — $ 84,114 Special Mention — 387 387 — 387 Total 83,891 610 84,501 — 84,501 LTV => 35% Pass 417,164 — 417,164 — 417,164 Special Mention 1,114 — 1,114 — 1,114 Substandard 5,981 — 5,981 3,548 9,529 Total 424,259 — 424,259 3,548 427,807 Total commercial 508,150 610 508,760 3,548 512,308 One-to-four family residential LTV < 60% Pass 53,781 312 54,093 — 54,093 Special Mention 85 647 732 — 732 Substandard 579 — 579 500 1,079 Total 54,445 959 55,404 500 55,904 LTV => 60% Pass 33,766 228 33,994 — 33,994 Substandard 303 — 303 31 334 Total 34,069 228 34,297 31 34,328 Total one-to-four family residential 88,514 1,187 89,701 531 90,232 Construction and land Pass 33,573 — 33,573 — 33,573 Total construction and land 33,573 — 33,573 — 33,573 Multifamily LTV < 35% Pass 204,081 — 204,081 — 204,081 Total 204,081 — 204,081 — 204,081 LTV => 35% Pass 1,822,249 — 1,822,249 — 1,822,249 Special Mention 903 — 903 — 903 Substandard 5,285 — 5,285 — 5,285 Total 1,828,437 — 1,828,437 — 1,828,437 Total multifamily 2,032,518 — 2,032,518 — 2,032,518 Home equity and lines of credit Pass 87,107 — 87,107 — 87,107 Special Mention 26 — 26 — 26 Substandard 134 — 134 122 256 Total home equity and lines of credit 87,267 — 87,267 122 87,389 Commercial and industrial Pass 42,096 205 42,301 — 42,301 Special Mention 380 — 380 — 380 Substandard 87 — 87 — 87 Total commercial and industrial 42,563 205 42,768 — 42,768 June 30, 2019 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 2,021 7 2,028 — 2,028 Total originated loans held-for-investment 2,794,606 2,009 2,796,615 4,201 2,800,816 Acquired loans: Real estate loans: One-to-four family residential LTV < 60% Pass 212,479 611 213,090 — 213,090 Special Mention — — — — — Substandard 6 — 6 285 291 Total 212,485 611 213,096 285 213,381 LTV => 60% Pass 16,344 — 16,344 — 16,344 Substandard — — — 216 216 Total 16,344 — 16,344 216 16,560 Total one-to-four family residential 228,829 611 229,440 501 229,941 Commercial LTV < 35% Pass 38,945 106 39,051 — 39,051 Special Mention 1,076 — 1,076 — 1,076 Substandard 1,168 258 1,426 274 1,700 Total 41,189 364 41,553 274 41,827 LTV => 35% Pass 67,605 54 67,659 — 67,659 Special Mention 3,307 125 3,432 — 3,432 Substandard 6,185 1,084 7,269 5,412 12,681 Total 77,097 1,263 78,360 5,412 83,772 Total commercial 118,286 1,627 119,913 5,686 125,599 Construction and land Pass 8,381 — 8,381 — 8,381 Total construction and land 8,381 — 8,381 — 8,381 Multifamily LTV < 35% Pass 127,121 — 127,121 — 127,121 Special Mention 13 — 13 — 13 Substandard — — — 41 41 Total 127,134 — 127,134 41 127,175 LTV => 35% Pass 4,048 — 4,048 — 4,048 Substandard — — — 405 405 Total 4,048 — 4,048 405 4,453 Total multifamily 131,182 — 131,182 446 131,628 Home equity and lines of credit Pass 14,265 — 14,265 — 14,265 Substandard 76 — 76 49 125 Total home equity and lines of credit 14,341 — 14,341 49 14,390 Commercial and industrial Pass 9,899 43 9,942 — 9,942 Total commercial and industrial 9,899 43 9,942 — 9,942 Other loans - Pass 4 — 4 — 4 Total loans acquired 510,922 2,281 513,203 6,682 519,885 $ 3,305,528 $ 4,290 $ 3,309,818 $ 10,883 $ 3,320,701 December 31, 2018 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 $ 78,699 $ 218 $ 78,917 — $ 78,917 Special Mention — 395 395 — 395 Total 78,699 613 79,312 — 79,312 LTV => 35% Pass 408,830 325 409,155 — 409,155 Special Mention 1,137 — 1,137 — 1,137 Substandard 7,381 — 7,381 2,875 10,256 Total 417,348 325 417,673 2,875 420,548 Total commercial 496,047 938 496,985 2,875 499,860 One-to-four family residential LTV < 60% Pass 54,576 336 54,912 — 54,912 Special Mention — 747 747 — 747 Substandard 896 — 896 510 1,406 Total 55,472 1,083 56,555 510 57,065 LTV => 60% Pass 34,576 232 34,808 — 34,808 Substandard 528 — 528 32 560 Total 35,104 232 35,336 32 35,368 Total one-to-four family residential 90,576 1,315 91,891 542 92,433 Construction and land Pass 26,613 — 26,613 — 26,613 Total construction and land 26,613 — 26,613 — 26,613 Multifamily LTV < 35% Pass 170,534 298 170,832 — 170,832 Total 170,534 298 170,832 — 170,832 LTV => 35% Pass 1,756,443 439 1,756,882 — 1,756,882 Special Mention 613 — 613 — 613 Substandard 4,390 1,229 5,619 — 5,619 Total 1,761,446 1,668 1,763,114 — 1,763,114 Total multifamily 1,931,980 1,966 1,933,946 — 1,933,946 Home equity and lines of credit Pass 80,077 — 80,077 — 80,077 Special Mention 27 — 27 — 27 Substandard 137 — 137 74 211 Total home equity and lines of credit 80,241 — 80,241 74 80,315 Commercial and industrial loans Pass 43,640 — 43,640 — 43,640 Special Mention 430 — 430 — 430 Substandard 95 — 95 25 120 Total commercial and industrial loans 44,165 — 44,165 25 44,190 Other loans - Pass 1,518 2 1,520 — 1,520 Total originated loans held-for-investment $ 2,671,140 $ 4,221 $ 2,675,361 $ 3,516 $ 2,678,877 December 31, 2018 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 202,471 2,799 205,270 — 205,270 Special Mention 415 — 415 — 415 Substandard 62 6 68 374 442 Total 202,948 2,805 205,753 374 206,127 LTV => 60% Pass 19,504 — 19,504 — 19,504 Substandard — — — 246 246 Total 19,504 — 19,504 246 19,750 Total one-to-four family residential 222,452 2,805 225,257 620 225,877 Commercial LTV < 35% Pass 41,071 — 41,071 — 41,071 Special Mention 1,079 — 1,079 — 1,079 Substandard 1,185 151 1,336 281 1,617 Total 43,335 151 43,486 281 43,767 LTV => 35% Pass 73,986 749 74,735 — 74,735 Special Mention 4,315 128 4,443 — 4,443 Substandard 5,772 411 6,183 4,135 10,318 Total 84,073 1,288 85,361 4,135 89,496 Total commercial 127,408 1,439 128,847 4,416 133,263 Construction and land Pass 12,003 — 12,003 — 12,003 Total construction and land 12,003 — 12,003 — 12,003 Multifamily LTV < 35% Pass 137,141 — 137,141 — 137,141 Special Mention — 52 52 — 52 Substandard — — — 152 152 Total 137,141 52 137,193 152 137,345 LTV => 35% Pass 7,726 — 7,726 — 7,726 Substandard — — — 414 414 Total 7,726 — 7,726 414 8,140 Total multifamily 144,867 52 144,919 566 145,485 Home equity and lines of credit Pass 17,427 — 17,427 — 17,427 Substandard 79 — 79 77 156 Total home equity and lines of credit 17,506 — 17,506 77 17,583 Commercial and industrial loans Pass 11,888 45 11,933 — 11,933 Total commercial and industrial loans 11,888 45 11,933 — 11,933 Other 6 — 6 — 6 Total loans acquired 536,130 4,341 540,471 5,679 546,150 $ 3,207,270 $ 8,562 $ 3,215,832 $ 9,195 $ 3,225,027
Summary of Impaired Loans	Three Months Ended Six Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 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% Pass $ 5,801 $ 79 $ 4,664 $ 65 $ 5,844 $ 158 $ 5,197 $ 129 Substandard 10,979 57 9,650 75 11,373 129 9,681 150 One-to-four family residential LTV < 60% Pass 1,812 22 1,374 13 1,719 44 1,312 27 Substandard 238 1 246 4 239 4 248 4 LTV => 60% Pass 126 1 267 1 127 2 223 5 Substandard 124 3 129 — 125 6 131 3 Multifamily LTV < 35% Substandard 45 1 152 1 80 1 152 2 LTV => 35% Pass 34 4 46 4 35 8 467 8 Substandard 1,100 16 1,237 16 1,143 35 825 28 Home equity and lines of credit Pass 26 — 31 — 26 1 32 1 Commercial and industrial loans Substandard 46 131 — 48 — 132 — With a Related Allowance Recorded: Real estate loans: Commercial LTV => 35% Pass — 1,476 20 — — 984 40 Substandard 1,171 17 — — 781 17 — — One-to-four family residential LTV < 60% Pass — 204 2 — — 273 3 Substandard 345 5 674 4 449 10 782 8 LTV => 60% Pass — — — — — 89 — Home equity and lines of credit Substandard 33 35 33 1 35 1 Commercial and industrial loans Special Mention 20 23 — 20 — 23 1 Total: Real estate loans Commercial 17,951 153 15,790 160 17,998 304 15,862 319 One-to-four family residential 2,645 32 2,894 24 2,659 66 3,058 50 Multifamily 1,179 21 1,435 21 1,258 44 1,444 38 Home equity and lines of credit 59 — 66 — 59 2 67 2 Commercial and industrial loans 66 — 154 — 68 — 155 1 $ 21,900 $ 206 $ 20,339 $ 205 $ 22,042 $ 416 $ 20,586 $ 410 The following table summarizes originated and acquired impaired loans as of June 30, 2019 , and December 31, 2018 (in thousands): June 30, 2019 December 31, 2018 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 $ — $ 139 $ — $ — $ 139 $ — LTV => 35% Pass 5,758 6,644 — 5,931 6,817 — Substandard 10,910 11,727 — 12,160 15,028 — One-to-four family residential LTV < 60% Pass 1,803 1,882 — 1,532 1,606 — Substandard 237 237 — 241 241 — LTV => 60% Pass 125 156 — 129 158 — Substandard 123 275 — 126 278 — Multifamily LTV < 35% Substandard 41 41 — 152 152 — LTV => 35% Pass 32 503 — 38 509 — Substandard 975 975 — 1,229 1,229 — Home equity and lines of credit Pass 25 25 — 28 28 — Commercial and industrial loans Substandard 45 115 — 52 119 — With a Related Allowance Recorded: Real estate loans: Commercial LTV => 35% Substandard 1,824 3,071 (239 ) — — — One-to-four family residential LTV < 60% Substandard 344 344 (1 ) 657 657 (18 ) LTV => 60% Home equity and lines of credit Substandard 33 33 (8 ) 33 33 (5 ) Commercial and industrial loans Special Mention 20 20 (4 ) 21 21 (3 ) Total: Real estate loans Commercial 18,492 21,581 (239 ) 18,091 21,984 — One-to-four family residential 2,632 2,894 (1 ) 2,685 2,940 (18 ) Multifamily 1,048 1,519 — 1,419 1,890 — Home equity and lines of credit 58 58 (8 ) 61 61 (5 ) Commercial and industrial loans 65 135 (4 ) 73 140 (3 ) $ 22,295 $ 26,187 $ (252 ) $ 22,329 $ 27,015 $ (26 )
Troubled Debt Restructurings on Financing Receivables	following table summarizes loans that were modified in a TDR during the six months ended June 30, 2019 : Six Months Ended June 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)	6 Months Ended
	Jun. 30, 2019
Banking and Thrift [Abstract]
Deposit Account Balances	Deposits account balances are summarized as follows (in thousands): June 30, 2019 December 31, 2018 Non-interest-bearing demand $ 386,784 $ 395,375 Interest-bearing negotiable orders of withdrawal (NOW) 486,529 458,012 Savings and money market 1,422,534 1,336,229 Certificates of deposit 1,004,344 1,096,896 Total deposits $ 3,300,191 $ 3,286,512
Interest Expense on Deposits	Interest expense on deposit accounts is summarized for the periods indicated (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Negotiable orders of withdrawal, savings, and money market $ 5,377 $ 2,312 $ 10,171 $ 4,455 Certificates of deposit 5,172 3,738 10,625 6,806 Total interest expense on deposit accounts $ 10,549 $ 6,050 $ 20,796 $ 11,261

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	6 Months Ended
	Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Options Outstanding	The following table is a summary of the Company’s stock options outstanding as of June 30, 2019 , and changes therein during the six 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, 2018 3,251,595 $ 3.93 $ 13.51 5.62 Forfeited (15,000 ) 4.07 14.76 — Exercised (161,332 ) 2.61 8.06 — Outstanding - June 30, 2019 3,075,263 4.00 13.79 5.37 Exercisable - June 30, 2019 2,860,092 3.98 13.66 5.29
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 June 30, 2019 , and changes therein during the six months then ended. Number of Shares Awarded Weighted Average Grant Date Fair Value Non-vested at December 31, 2018 328,962 $ 14.31 Vested (233,360 ) 13.78 Forfeited (8,000 ) 14.76 Non-vested at June 30, 2019 87,602 $ 15.68

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Significant Fair Value of Assets and Liabilities Measured on Recurring and Non Recurring Basis	Fair Value Measurements at June 30, 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 $ 384,134 $ — $ 384,134 $ — REMICs: GSE 460,697 — 460,697 — Non-GSE 55 — 55 — 844,886 — 844,886 — Other debt securities Municipal bonds 273 — 273 — Corporate bonds 204,501 — 204,501 — 204,774 — 204,774 — Total debt securities available-for-sale 1,049,660 — 1,049,660 — Trading securities 10,214 10,214 — — Equity securities 269 269 — — Total $ 1,060,143 $ 10,483 $ 1,049,660 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 5,721 $ — $ — $ 5,721 One-to-four family residential mortgage 466 — — 466 Multifamily 32 — — 32 Home equity and lines of credit 25 — — 25 Total impaired real estate loans 6,244 — — 6,244 Commercial and industrial loans 14 — — 14 Total $ 6,258 $ — $ — $ 6,258 Fair Value Measurements at December 31, 2018 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 $ 314,788 $ — $ 314,788 $ — REMICs: GSE 250,163 — 250,163 — Non-GSE 58 — 58 — 565,009 — 565,009 — Other debt securities Municipal bonds 273 — 273 — Corporate bonds 242,749 — 242,749 — 243,022 — 243,022 — Total debt securities available-for-sale 808,031 — 808,031 — Trading securities 8,968 8,968 — — Equity securities 237 237 — — Total $ 817,236 $ 9,205 $ 808,031 $ — Measured on a non-recurring basis: Assets: Impaired loans: Real estate loans: Commercial real estate $ 4,847 $ — $ — $ 4,847 One-to-four family residential mortgage 765 — — 765 Multifamily 39 — — 39 Home equity and lines of credit 28 — — 28 Total impaired real estate loans 5,679 — — 5,679 Commercial and industrial loans 18 — — 18 Total $ 5,697 $ — $ — $ 5,697
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 June 30, 2019 , and December 31, 2018 (dollars in thousands): Fair Value Valuation Methodology Unobservable Inputs Range of Inputs June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Impaired loans $ 6,258 $ 5,697 Appraisals Discount for costs to sell 7.0% 7.0% Discount for quick sale 10% to 15% 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 June 30, 2019 , and December 31, 2018 , is presented in the following tables (in thousands): June 30, 2019 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 46,907 $ 46,907 $ — $ — $ 46,907 Trading securities 10,214 10,214 — — 10,214 Debt securities available-for-sale 1,049,660 — 1,049,660 — 1,049,660 Debt securities held-to-maturity 8,872 — 8,877 — 8,877 Equity securities (1) 269 269 — — 269 Federal Home Loan Bank of New York stock, at cost 32,330 — 32,330 — 32,330 Net loans held-for-investment 3,310,946 — — 3,351,040 3,351,040 Financial liabilities: Deposits $ 3,300,191 $ — $ 3,306,004 $ — $ 3,306,004 Borrowed funds 695,105 — 698,569 — 698,569 Advance payments by borrowers for taxes and insurance 20,817 — 20,817 — 20,817 December 31, 2018 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 77,762 $ 77,762 $ — $ — $ 77,762 Trading securities 8,968 8,968 — — 8,968 Debt securities available-for-sale 808,031 — 808,031 — 808,031 Debt securities held-to-maturity 9,505 — 9,249 — 9,249 Equity securities (1) 237 237 — 237 Federal Home Loan Bank of New York stock, at cost 22,517 — 22,517 — 22,517 Net loans held-for-investment 3,217,673 — — 3,236,136 3,236,136 Financial liabilities: Deposits $ 3,286,512 $ — $ 3,291,085 $ — $ 3,291,085 Borrowed funds 408,891 — 403,476 — 403,476 Advance payments by borrowers for taxes and insurance 18,007 — 18,007 — 18,007 (1) Excludes investments measured at net asset value of $2.1 million at June 30, 2019 and $1.0 million at December 31, 2018 , which have not been classified in the fair value hierarchy.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
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 (dollars in thousands, except per share data): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Net income available to common stockholders $ 8,204 $ 10,612 $ 16,975 $ 21,056 Weighted average shares outstanding-basic 46,855,647 46,184,918 46,897,546 45,983,895 Effect of non-vested restricted stock and stock options outstanding 416,043 925,059 381,650 1,072,404 Weighted average shares outstanding-diluted 47,271,690 47,109,977 47,279,196 47,056,299 Earnings per share-basic $ 0.18 $ 0.23 $ 0.36 $ 0.46 Earnings per share-diluted $ 0.17 $ 0.23 $ 0.36 $ 0.45 Anti-dilutive shares 848,844 858,844 962,296 872,294

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Schedule of Non-Interest Income	The following table summarizes non-interest income for the periods indicated (dollars in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Fees and service charges for customer services: Service charges $ 812 $ 771 $ 1,594 $ 1,612 ATM and card interchange fees 339 313 640 580 Investment fees 56 63 113 169 Total fees and service charges for customer services 1,207 1,147 2,347 2,361 Income on bank owned life insurance (1) 907 914 1,804 1,868 Gains on available-for-sale debt securities, net (1) 59 116 214 171 Gains on trading securities, net (1) 343 197 1,429 302 Other 50 71 86 147 Total non-interest income $ 2,566 $ 2,445 $ 5,880 $ 4,849 (1) Not in scope of Topic 606

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Lease, Cost	Supplemental lease information at or for the three and six months ended June 30, 2019 is as follows (dollars in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2019 Operating lease cost $ 1,551 $ 3,017 Variable lease cost 711 1,489 Net lease cost $ 2,262 $ 4,506 Cash paid for amounts included in measurement of operating lease liabilities $ 1,513 $ 2,840 Right-of-use assets obtained in exchange for new operating lease liabilities $ — $ 1,013 Weighted average remaining lease term at June 30, 2019 12.95 years Weighted average discount rate at June 30, 2019 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 (dollars in thousands): Year Amount 2019 $ 3,061 2020 6,156 2021 5,729 2022 5,068 2023 4,975 Thereafter 35,288 Total lease payments 60,277 Less: imputed interest 13,956 Present value of lease liabilities $ 46,321
Schedule of Future Minimum Rental Payments for Operating Leases	The following table summarizes projected minimum annual rental payments for operating leases under FASB ASC 840 “Leases” as of December 31, 2018 (dollars in thousands): Rental Payments Operating Leases Year ending December 31: 2019 $ 5,735 2020 5,949 2021 5,512 2022 4,844 2023 4,744 Thereafter 35,260 Total minimum lease payments $ 62,044

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	Jun. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 1,043,951	$ 820,801
Gross unrealized gains	9,338	967
Gross unrealized losses	3,629	13,737
Debt securities available-for-sale	1,049,660	808,031
Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	840,368	575,639
Gross unrealized gains	8,057	892
Gross unrealized losses	3,539	11,522
Debt securities available-for-sale	844,886	565,009
Other debt obligations
Debt Securities, Available-for-sale [Line Items]
Amortized cost	203,583	245,162
Gross unrealized gains	1,281	75
Gross unrealized losses	90	2,215
Debt securities available-for-sale	204,774	243,022
GSE | Pass-through Certificates
Debt Securities, Available-for-sale [Line Items]
Amortized cost	379,322	317,530
Gross unrealized gains	5,749	800
Gross unrealized losses	937	3,542
Debt securities available-for-sale	384,134	314,788
GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	460,990	258,050
Gross unrealized gains	2,308	92
Gross unrealized losses	2,601	7,979
Debt securities available-for-sale	460,697	250,163
Non-GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	56	59
Gross unrealized gains	0	0
Gross unrealized losses	1	1
Debt securities available-for-sale	55	58
Municipal bonds | Other debt obligations
Debt Securities, Available-for-sale [Line Items]
Amortized cost	270	270
Gross unrealized gains	3	3
Gross unrealized losses	0	0
Debt securities available-for-sale	273	273
Corporate bonds | Other debt obligations
Debt Securities, Available-for-sale [Line Items]
Amortized cost	203,313	244,892
Gross unrealized gains	1,278	72
Gross unrealized losses	90	2,215
Debt securities available-for-sale	$ 204,501	$ 242,749

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	Jun. 30, 2019	Dec. 31, 2018
Amortized cost
Amortized cost	$ 1,043,951	$ 820,801
Estimated fair value
Estimated fair value	1,049,660	$ 808,031
Other Than Mortgage Backed Securities
Amortized cost
Due in one year or less	59,847
Due after one year through five years	138,799
Due after five years through ten years	4,937
Amortized cost	203,583
Estimated fair value
Due in one year or less	60,136
Due after one year through five years	139,708
Due after one year through five years	4,930
Estimated fair value	$ 204,774

Debt Securities Available-for_5

Debt Securities Available-for-Sale - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)security	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)security	Jun. 30, 2018USD ($)
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, restricted | $	$ 553,300,000		$ 553,300,000
Proceeds from sale of debt securities available-for-sale | $	5,200,000	$ 10,100,000	34,442,000	$ 29,608,000
Debt securities, available-for-sale, realized gain | $	59,000	116,000	214,000	176,000
Debt securities, available-for-sale, realized loss | $	0	0	0	5,000
Debt securities, trading, realized gain (loss) | $	343,000	197,000	1,400,000	302,000
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	38		38
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	34		34
Number of debt securities, unrealized loss position less than 12 months	9		9
Real Estate Mortgage Investment Conduits (REMICs) | Non-GSE
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position longer than 12 months	1		1
Real Estate Mortgage Investment Conduits (REMICs) | Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position longer than 12 months	4		4
Real Estate Mortgage Investment Conduits (REMICs) | Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position less than 12 months	4		4
Pass-through Certificates | GSE | Pass Through
Debt Securities, Available-for-sale [Line Items]
Number of debt securities, unrealized loss position less than 12 months	2		2

Debt Securities Available-for_6

Debt Securities Available-for-Sale - Gross Unrealized Losses on Mortgage-Backed Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	$ 69	$ 2,376
Estimated Fair value, less than 12 months	124,225	302,921
Unrealized losses, 12 months or more	3,560	11,361
Estimated Fair value, 12 months or more	207,092	307,354
Unrealized losses, total	3,629	13,737
Estimated fair value, total	331,317	610,275
GSE | Pass-through Certificates
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	7	404
Estimated Fair value, less than 12 months	3,302	82,781
Unrealized losses, 12 months or more	930	3,138
Estimated Fair value, 12 months or more	63,707	100,109
Unrealized losses, total	937	3,542
Estimated fair value, total	67,009	182,890
GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	32	269
Estimated Fair value, less than 12 months	96,899	46,921
Unrealized losses, 12 months or more	2,569	7,710
Estimated Fair value, 12 months or more	123,353	181,512
Unrealized losses, total	2,601	7,979
Estimated fair value, total	220,252	228,433
Non-GSE | Real estate mortgage investment conduits (REMICs)
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	0	0
Estimated Fair value, less than 12 months	0	0
Unrealized losses, 12 months or more	1	1
Estimated Fair value, 12 months or more	55	58
Unrealized losses, total	1	1
Estimated fair value, total	55	58
Corporate bonds | Other debt obligations
Debt Securities, Available-for-sale [Line Items]
Unrealized losses, less than 12 months	30	1,703
Estimated Fair value, less than 12 months	24,024	173,219
Unrealized losses, 12 months or more	60	512
Estimated Fair value, 12 months or more	19,977	25,675
Unrealized losses, total	90	2,215
Estimated fair value, total	$ 44,001	$ 198,894

Debt Securities Held-to-Matur_3

Debt Securities Held-to-Maturity - Mortgage Backed Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 8,872	$ 9,505
Gross Unrealized Gains	47	0
Gross Unrealized Losses	42	256
Estimated Fair Value	8,877	9,249
Mortgage Backed Securities Pass Through Certificates
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	8,872	9,505
Gross Unrealized Gains	47	0
Gross Unrealized Losses	42	256
Estimated Fair Value	$ 8,877	$ 9,249

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		6 Months Ended
	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)
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	$ 6,100,000		6,100,000
Unrealized losses
Less than 12 months	0		0		$ 34,000
12 months or more	42,000		42,000		222,000
Total	42,000		42,000		256,000
Estimated fair value
Less than 12 months	0		0		2,133,000
12 months or more	3,746,000		3,746,000		7,116,000
Total	3,746,000		3,746,000		9,249,000
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		0		34,000
12 months or more	42,000		42,000		222,000
Total	42,000		42,000		256,000
Estimated fair value
Less than 12 months	0		0		2,133,000
12 months or more	3,746,000		3,746,000		7,116,000
Total	$ 3,746,000		$ 3,746,000		$ 9,249,000
Number of mortgage-backed securities in unrealized loss position, greater than 12 months (loan) | loan	3		3

Equity Securities (Details)

Equity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	$ 2,328	$ 1,280
Equity securities without readily determinable fair value	2,100	1,000
Money Market Funds
Debt and Equity Securities, FV-NI [Line Items]
Equity securities, fair value	269	237
SBA Loan Fund
Debt and Equity Securities, FV-NI [Line Items]
Equity securities without readily determinable fair value	$ 2,100	$ 1,000

Loans - Net Loans Held-for-Inve

Loans - Net Loans Held-for-Investment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Loans held-for-investment, net	$ 3,338,778		$ 3,245,170
Allowance for loan losses	(27,832)	$ (27,486)	(27,497)	$ (26,882)	$ (26,172)	$ (26,160)
Net loans held-for-investment	3,310,946		3,217,673
Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	44,688		45,623
Deferred loan cost, net	7,436		6,892
Loans held-for-investment, net	2,800,816		2,678,877
Allowance for loan losses	(26,687)	(26,476)	(26,487)	(25,931)	(25,218)	(25,172)
Purchased Credit-Impaired
Loans and Leases Receivable Disclosure [Line Items]
Loans held-for-investment, net	18,077		20,143
Allowance for loan losses	(1,010)	(1,010)	(1,010)	(951)	(951)	(951)
Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	519,885		546,150
Loans held-for-investment, net	519,885		546,150
Allowance for loan losses	(135)	0	0	0	(3)	(37)
Real Estate | Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,748,692		2,626,362
Real Estate | Originated | Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,029,205		1,930,535
Loans held-for-investment, net	2,032,518		1,933,946
Allowance for loan losses	(18,384)	(18,346)	(18,084)	(17,603)	(17,412)	(17,374)
Real Estate | Originated | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	511,711		499,311
Loans held-for-investment, net	512,308		499,860
Allowance for loan losses	(5,331)	(5,382)	(5,630)	(5,718)	(5,213)	(5,196)
Real Estate | Originated | One-to-Four Family
Loans and Leases Receivable Disclosure [Line Items]
Loans	88,713		91,371
Loans held-for-investment, net	90,232		92,433
Allowance for loan losses	(234)	(370)	(342)	(384)	(455)	(503)
Real Estate | Originated | Home equity and lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Loans	85,506		78,593
Loans held-for-investment, net	87,389		80,315
Allowance for loan losses	(417)	(336)	(291)	(279)	(225)	(122)
Real Estate | Originated | Construction and Land
Loans and Leases Receivable Disclosure [Line Items]
Loans	33,557		26,552
Loans held-for-investment, net	33,573		26,613
Allowance for loan losses	(584)	(574)	(463)	(438)	(463)	(610)
Real Estate | Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	509,939		534,211
Real Estate | Acquired Loans | Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Loans	131,628		145,485
Real Estate | Acquired Loans | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	125,599		133,263
Real Estate | Acquired Loans | One-to-Four Family
Loans and Leases Receivable Disclosure [Line Items]
Loans	229,941		225,877
Real Estate | Acquired Loans | Home equity and lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Loans	14,390		17,583
Real Estate | Acquired Loans | Construction and Land
Loans and Leases Receivable Disclosure [Line Items]
Loans	8,381		12,003
Commercial and Industrial | Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	42,660		44,104
Loans held-for-investment, net	42,768		44,190
Allowance for loan losses	(1,591)	(1,376)	(1,569)	(1,402)	(1,337)	(1,273)
Commercial and Industrial | Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	9,942		11,933
Other | Originated
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,028		1,519
Loans held-for-investment, net	2,028		1,520
Allowance for loan losses	(146)	$ (92)	(108)	$ (107)	$ (113)	$ (94)
Other | Acquired Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 4		$ 6

Loans - Narrative, PCI Loans (D

Loans - Narrative, PCI Loans (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable held-for-sale, amount	$ 0	$ 0
Loans and Leases Receivable, Net of Deferred Income	$ 3,338,778,000	$ 3,245,170,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	29.00%	27.00%
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of PCI loans	45.00%	50.00%
Purchased Credit-Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 18,077,000	$ 20,143,000

Loans - Summary of Accretable Y

Loans - Summary of Accretable Yield (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accretable Yield Movement Schedule [Roll Forward]
Balance at the beginning of period	$ 20,797	$ 23,412	$ 21,846	$ 24,502
Accretion into interest income	(1,003)	(1,026)	(2,052)	(2,116)
Balance at end of period	$ 19,794	$ 22,386	$ 19,794	$ 22,386

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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Allowance for loan losses:
Beginning Balance	$ 27,486	$ 26,172	$ 27,497	$ 26,160
Charge-offs	(233)	0	(324)	(64)
Recoveries	88	40	109	82
Provisions (credit)	491	670	550	704
Ending balance	27,832	26,882	27,832	26,882
Ending balance: individually evaluated for impairment	252		252		$ 26
Ending balance: collectively evaluated for impairment	27,580		27,580		27,471
Loans, net:
Loans held-for-investment, net	3,338,778		3,338,778		3,245,170
Ending balance: individually evaluated for impairment	22,295		22,295		22,329
Ending balance: collectively evaluated for impairment	3,316,483		3,316,483		3,222,841
Originated
Allowance for loan losses:
Beginning Balance	26,476	25,218	26,487	25,172
Charge-offs	(180)	0	(212)	(63)
Recoveries	86	38	98	74
Provisions (credit)	305	675	314	748
Ending balance	26,687	25,931	26,687	25,931
Ending balance: individually evaluated for impairment	117		117		26
Ending balance: collectively evaluated for impairment	26,570		26,570		26,461
Loans, net:
Loans held-for-investment, net	2,800,816		2,800,816		2,678,877
Ending balance: individually evaluated for impairment	17,346		17,346		18,547
Ending balance: collectively evaluated for impairment	2,783,470		2,783,470		2,660,330
Purchased Credit-Impaired
Allowance for loan losses:
Beginning Balance	1,010	951	1,010	951
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credit)	0	0	0	0
Ending balance	1,010	951	1,010	951
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	1,010		1,010		1,010
Loans, net:
Loans held-for-investment, net	18,077		18,077		20,143
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	18,077		18,077		20,143
Acquired Loans
Allowance for loan losses:
Beginning Balance	0	3	0	37
Charge-offs	(53)	0	(112)	(1)
Recoveries	2	2	11	8
Provisions (credit)	186	(5)	236	(44)
Ending balance	135	0	135	0
Ending balance: individually evaluated for impairment	135		135		0
Ending balance: collectively evaluated for impairment	0		0		0
Loans, net:
Loans held-for-investment, net	519,885		519,885		546,150
Ending balance: individually evaluated for impairment	4,949		4,949		3,782
Ending balance: collectively evaluated for impairment	514,936		514,936		542,368
Real Estate | Commercial | Originated
Allowance for loan losses:
Beginning Balance	5,382	5,213	5,630	5,196
Charge-offs	0	0	(6)	(3)
Recoveries	13	12	25	28
Provisions (credit)	(64)	493	(318)	497
Ending balance	5,331	5,718	5,331	5,718
Ending balance: individually evaluated for impairment	104		104		0
Ending balance: collectively evaluated for impairment	5,227		5,227		5,630
Loans, net:
Loans held-for-investment, net	512,308		512,308		499,860
Ending balance: individually evaluated for impairment	14,362		14,362		15,252
Ending balance: collectively evaluated for impairment	497,946		497,946		484,608
Real Estate | One-to-Four Family | Originated
Allowance for loan losses:
Beginning Balance	370	455	342	503
Charge-offs	0	0	0	0
Recoveries	72	0	72	0
Provisions (credit)	(208)	(71)	(180)	(119)
Ending balance	234	384	234	384
Ending balance: individually evaluated for impairment	1		1		18
Ending balance: collectively evaluated for impairment	233		233		324
Loans, net:
Loans held-for-investment, net	90,232		90,232		92,433
Ending balance: individually evaluated for impairment	1,854		1,854		1,893
Ending balance: collectively evaluated for impairment	88,378		88,378		90,540
Real Estate | Construction and Land | Originated
Allowance for loan losses:
Beginning Balance	574	463	463	610
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credit)	10	(25)	121	(172)
Ending balance	584	438	584	438
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	584		584		463
Loans, net:
Loans held-for-investment, net	33,573		33,573		26,613
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	33,573		33,573		26,613
Real Estate | Multifamily | Originated
Allowance for loan losses:
Beginning Balance	18,346	17,412	18,084	17,374
Charge-offs	0	0	0	0
Recoveries	0	26	0	26
Provisions (credit)	38	165	300	203
Ending balance	18,384	17,603	18,384	17,603
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	18,384		18,384		18,084
Loans, net:
Loans held-for-investment, net	2,032,518		2,032,518		1,933,946
Ending balance: individually evaluated for impairment	1,007		1,007		1,268
Ending balance: collectively evaluated for impairment	2,031,511		2,031,511		1,932,678
Real Estate | Home equity and lines of credit | Originated
Allowance for loan losses:
Beginning Balance	336	225	291	122
Charge-offs	0	0	0	(60)
Recoveries	0	0	0	0
Provisions (credit)	81	54	126	217
Ending balance	417	279	417	279
Ending balance: individually evaluated for impairment	8		8		5
Ending balance: collectively evaluated for impairment	409		409		286
Loans, net:
Loans held-for-investment, net	87,389		87,389		80,315
Ending balance: individually evaluated for impairment	58		58		61
Ending balance: collectively evaluated for impairment	87,331		87,331		80,254
Commercial and Industrial | Originated
Allowance for loan losses:
Beginning Balance	1,376	1,337	1,569	1,273
Charge-offs	(57)	0	(83)	0
Recoveries	0	0	0	20
Provisions (credit)	272	65	105	109
Ending balance	1,591	1,402	1,591	1,402
Ending balance: individually evaluated for impairment	4		4		3
Ending balance: collectively evaluated for impairment	1,587		1,587		1,566
Loans, net:
Loans held-for-investment, net	42,768		42,768		44,190
Ending balance: individually evaluated for impairment	65		65		73
Ending balance: collectively evaluated for impairment	42,703		42,703		44,117
Other | Originated
Allowance for loan losses:
Beginning Balance	92	113	108	94
Charge-offs	(123)	0	(123)	0
Recoveries	1	0	1	0
Provisions (credit)	176	(6)	160	13
Ending balance	146	$ 107	146	$ 107
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	146		146		108
Loans, net:
Loans held-for-investment, net	2,028		2,028		1,520
Ending balance: individually evaluated for impairment	0		0		0
Ending balance: collectively evaluated for impairment	$ 2,028		$ 2,028		$ 1,520

Loans - Narrative, Loan-to-Valu

Loans - Narrative, Loan-to-Value Ratios (Details)	Jun. 30, 2019
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan to value ratio, less than	35.00%
One-to-four family residential mortgage
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	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 2,800,816	$ 2,678,877
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,780,704	2,657,356
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	3,542	3,349
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	16,570	18,172
Real Estate | Multifamily | Less Than 35% LTV
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	204,081	170,832
Real Estate | Multifamily | Less Than 35% LTV | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	204,081	170,832
Real Estate | Multifamily | Less Than 35% LTV | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Real Estate | Multifamily | Less Than 35% LTV | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Real Estate | Multifamily | Equal to or Greater than 35% LTV
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,828,437	1,763,114
Real Estate | Multifamily | Equal to or Greater than 35% LTV | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,822,249	1,756,882
Real Estate | Multifamily | Equal to or Greater than 35% LTV | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	903	613
Real Estate | Multifamily | Equal to or Greater than 35% LTV | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	5,285	5,619
Real Estate | Commercial mortgage | Less Than 35% LTV
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	84,501	79,312
Real Estate | Commercial mortgage | Less Than 35% LTV | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	84,114	78,917
Real Estate | Commercial mortgage | Less Than 35% LTV | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	387	395
Real Estate | Commercial mortgage | Less Than 35% LTV | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	427,807	420,548
Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	417,164	409,155
Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,114	1,137
Real Estate | Commercial mortgage | Equal to or Greater than 35% LTV | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	9,529	10,256
Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	55,904	57,065
Real Estate | One-to-four family residential mortgage | Less Than 60% LTV | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	54,093	54,912
Real Estate | One-to-four family residential mortgage | Less Than 60% LTV | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	732	747
Real Estate | One-to-four family residential mortgage | Less Than 60% LTV | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,079	1,406
Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	34,328	35,368
Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	33,994	34,808
Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	334	560
Real Estate | Construction and land
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	33,573	26,613
Real Estate | Construction and land | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	33,573	26,613
Real Estate | Construction and land | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Real Estate | Construction and land | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Real Estate | Home equity and lines of credit
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	87,389	80,315
Real Estate | Home equity and lines of credit | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	87,107	80,077
Real Estate | Home equity and lines of credit | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	26	27
Real Estate | Home equity and lines of credit | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	256	211
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	42,768	44,190
Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	42,301	43,640
Commercial and Industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	380	430
Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	87	120
Other
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,028	1,520
Other | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,028	1,520
Other | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 0	$ 0

Loans - Narrative, Loans (Detai

Loans - Narrative, Loans (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Receivables [Abstract]
Investment in non accrual loans	$ 10,900,000	$ 9,200,000
Criteria days for delinquent status	90 days
Impairment of loans	$ 7,800,000	5,900,000
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	3,100,000	3,200,000
Loans held-for-sale, non-accrual	0	0
90 days or more past due and accruing	26,000	33,000
Impaired loans not written down	$ 15,800,000	$ 16,600,000

Loans - PCI Loan Pools (Details

Loans - PCI Loan Pools (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
90 Days or More Past Due and Accruing	$ 26	$ 33
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10,857	9,162
90 Days or More Past Due and Accruing	26	33
Total Non-Performing Loans	10,883	9,195
Non-Performing Loans | Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,201	3,516
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	4,201	3,516
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	3,548	2,875
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	3,548	2,875
Non-Performing Loans | Loans Held For Investment | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	531
90 Days or More Past Due and Accruing	0
Total Non-Performing Loans	531
Non-Performing Loans | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	500
90 Days or More Past Due and Accruing	0
Total Non-Performing Loans	500
Non-Performing Loans | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		541
90 Days or More Past Due and Accruing		0
Total Non-Performing Loans		541
Non-Performing Loans | Loans Held For Investment | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	122	75
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	122	75
Non-Performing Loans | Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		25
90 Days or More Past Due and Accruing		0
Total Non-Performing Loans		25
Non-Performing Loans | Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,656	5,646
90 Days or More Past Due and Accruing	26	33
Total Non-Performing Loans	6,682	5,679
Non-Performing Loans | Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,686	4,416
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	5,686	4,416
Non-Performing Loans | Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		587
90 Days or More Past Due and Accruing		33
Total Non-Performing Loans		620
Non-Performing Loans | Loans acquired | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	495
90 Days or More Past Due and Accruing	6
Total Non-Performing Loans	501
Non-Performing Loans | Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	447	566
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	447	566
Non-Performing Loans | Loans acquired | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	28	77
90 Days or More Past Due and Accruing	20	0
Total Non-Performing Loans	48	77
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	3,548	2,875
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	3,548	2,875
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	500	509
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	500	509
Non-Performing Loans | Substandard | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	31	32
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	31	32
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	122	75
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	122	75
Non-Performing Loans | Substandard | Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		25
90 Days or More Past Due and Accruing		0
Total Non-Performing Loans		25
Non-Performing Loans | Substandard | Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	274	281
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	274	281
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	5,412	4,135
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	5,412	4,135
Non-Performing Loans | Substandard | Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	279	368
90 Days or More Past Due and Accruing	6	6
Total Non-Performing Loans	285	374
Non-Performing Loans | Substandard | Loans acquired | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	216	219
90 Days or More Past Due and Accruing	0	27
Total Non-Performing Loans	216	246
Non-Performing Loans | Substandard | Loans acquired | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	41	152
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	41	152
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	406	414
90 Days or More Past Due and Accruing	0	0
Total Non-Performing Loans	406	414
Non-Performing Loans | Substandard | Loans acquired | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	28	77
90 Days or More Past Due and Accruing	20	0
Total Non-Performing Loans	48	77
Non-Performing Loans | 0-29 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,080	440
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	262	75
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	0
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	192
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	192
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% 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 | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	70	75
Non-Performing Loans | 0-29 Days Past Due | Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Non-Performing Loans | 0-29 Days Past Due | Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,818	365
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	3,654	87
Non-Performing Loans | 0-29 Days Past Due | Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		126
Non-Performing Loans | 0-29 Days Past Due | Loans acquired | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	123
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	41	152
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 | 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	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	192	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | 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 Held For Investment | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	70	75
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
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	83	87
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	3,571	0
Non-Performing Loans | 0-29 Days Past Due | Substandard | Loans acquired | Real Estate | One-to-four family residential mortgage | Less 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 | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	123	126
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	41	152
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 | 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
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,908	2,128
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	751
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	287
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment | Real Estate | One-to-four family residential mortgage
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 residential mortgage | 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 residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		464
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	0	0
Non-Performing Loans | 30-89 Days Past Due | Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Non-Performing Loans | 30-89 Days Past Due | Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,908	1,377
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	1,308	764
Non-Performing Loans | 30-89 Days Past Due | Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		199
Non-Performing Loans | 30-89 Days Past Due | Loans acquired | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	194
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	406	414
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 | 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	287
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	432
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	32
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	0	0
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		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	0	0
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	1,308	764
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	194	199
Non-Performing Loans | 30-89 Days Past Due | Substandard | Loans acquired | Real Estate | One-to-four family residential mortgage | 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 | 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 | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	406	414
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 | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,869	6,594
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,939	2,690
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	3,548	2,588
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	339
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	308
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Equal to or Greater 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 | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	52	0
Non-Performing Loans | 90 Days or More Past Due | Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		25
Non-Performing Loans | 90 Days or More Past Due | Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	930	3,904
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	724	3,565
Non-Performing Loans | 90 Days or More Past Due | Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		262
Non-Performing Loans | 90 Days or More Past Due | Loans acquired | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	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	0	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	77
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	3,548	2,588
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	308	77
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	31	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	52	0
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		25
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	191	194
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	533	3,371
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	85	169
Non-Performing Loans | 90 Days or More Past Due | Substandard | Loans acquired | Real Estate | One-to-four family residential mortgage | 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 | 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 | Multifamily | Equal to or Greater 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	$ 77

Loans - Loans Held-for-Investme

Loans - Loans Held-for-Investment by Performing and Non-Performing Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	$ 2,800,816	$ 2,678,877
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	10,857	9,162
Non-Performing Loans	10,883	9,195
Loans Held For Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	2,800,816	2,678,877
Loans Held For Investment | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	512,308	499,860
Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	84,501	79,312
Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	427,807	420,548
Loans Held For Investment | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	84,114	78,917
Loans Held For Investment | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	417,164	409,155
Loans Held For Investment | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	9,529	10,256
Loans Held For Investment | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	387	395
Loans Held For Investment | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	1,114	1,137
Loans Held For Investment | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	90,232	92,433
Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	55,904	57,065
Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	34,328	35,368
Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	54,093	54,912
Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	33,994	34,808
Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	1,079	1,406
Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	334	560
Loans Held For Investment | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	732	747
Loans Held For Investment | Real Estate | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	33,573	26,613
Loans Held For Investment | Real Estate | Construction and land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	33,573	26,613
Loans Held For Investment | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	2,032,518	1,933,946
Loans Held For Investment | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	204,081	170,832
Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	1,828,437	1,763,114
Loans Held For Investment | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	204,081	170,832
Loans Held For Investment | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	1,822,249	1,756,882
Loans Held For Investment | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	5,285	5,619
Loans Held For Investment | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	903	613
Loans Held For Investment | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	87,389	80,315
Loans Held For Investment | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	87,107	80,077
Loans Held For Investment | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	256	211
Loans Held For Investment | Real Estate | Home equity and lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	26	27
Loans Held For Investment | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	42,768	44,190
Loans Held For Investment | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	42,301	43,640
Loans Held For Investment | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	87	120
Loans Held For Investment | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	380	430
Loans Held For Investment | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	2,028	1,520
Loans Held For Investment | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,796,615	2,675,361
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	508,760	496,985
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	84,501	79,312
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	424,259	417,673
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	84,114	78,917
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	417,164	409,155
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	5,981	7,381
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	387	395
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	1,114	1,137
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	89,701	91,891
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	55,404	56,555
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	34,297	35,336
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	54,093	54,912
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	33,994	34,808
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	579	896
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	303	528
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	732	747
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	33,573	26,613
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	33,573	26,613
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,032,518	1,933,946
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	204,081	170,832
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	1,828,437	1,763,114
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	204,081	170,832
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	1,822,249	1,756,882
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	5,285	5,619
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	903	613
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	87,267	80,241
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	87,107	80,077
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	134	137
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	26	27
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	42,768	44,165
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	42,301	43,640
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	87	95
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	380	430
Loans Held For Investment | Performing (Accruing) Loans | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,028	1,520
Loans Held For Investment | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	4,201	3,516
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	3,548	2,875
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	3,548	2,875
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 | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	3,548	2,875
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 | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	531	542
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	500	510
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	31	32
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | 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 residential mortgage | 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 residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	500	510
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	31	32
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | 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 | 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	0	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	0	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	0	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 | Substandard | 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 | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	122	74
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 | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	122	74
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 | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	25
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 | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	25
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 | Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
Loans acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	519,885	546,150
Loans acquired | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	4
Loans acquired | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	125,599	133,263
Loans acquired | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	41,827	43,767
Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	83,772	89,496
Loans acquired | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	39,051	41,071
Loans acquired | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	67,659	74,735
Loans acquired | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	1,700	1,617
Loans acquired | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	12,681	10,318
Loans acquired | Real Estate | Commercial | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	1,076	1,079
Loans acquired | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	3,432	4,443
Loans acquired | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	229,941	225,877
Loans acquired | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	213,381	206,127
Loans acquired | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	16,560	19,750
Loans acquired | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	213,090	205,270
Loans acquired | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	16,344	19,504
Loans acquired | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	291	442
Loans acquired | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	216	246
Loans acquired | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	0	415
Loans acquired | Real Estate | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	8,381	12,003
Loans acquired | Real Estate | Construction and land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	8,381	12,003
Loans acquired | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	131,628	145,485
Loans acquired | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	127,175	137,345
Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	4,453	8,140
Loans acquired | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	127,121	137,141
Loans acquired | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	4,048	7,726
Loans acquired | Real Estate | Multifamily | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	41	152
Loans acquired | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	405	414
Loans acquired | Real Estate | Multifamily | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	13	52
Loans acquired | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	14,390	17,583
Loans acquired | Real Estate | Home equity and lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	14,265	17,427
Loans acquired | Real Estate | Home equity and lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	125	156
Loans acquired | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	9,942	11,933
Loans acquired | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	9,942	11,933
Loans acquired | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net		6
Loans acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	513,203	540,471
Loans acquired | Performing (Accruing) Loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	4
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	119,913	128,847
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	41,553	43,486
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	78,360	85,361
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	39,051	41,071
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	67,659	74,735
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,426	1,336
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	7,269	6,183
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	1,076	1,079
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	3,432	4,443
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	229,440	225,257
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	213,096	205,753
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	16,344	19,504
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	213,090	205,270
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	16,344	19,504
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	6	68
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | 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 | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	415
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	8,381	12,003
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	8,381	12,003
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	131,182	144,919
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	127,134	137,193
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	4,048	7,726
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	127,121	137,141
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	4,048	7,726
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 | Multifamily | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	13	52
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	14,341	17,506
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	14,265	17,427
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	76	79
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	9,942	11,933
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	9,942	11,933
Loans acquired | Performing (Accruing) Loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans		6
Loans acquired | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	6,682	5,679
Loans acquired | Non-Performing Loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0
Loans acquired | Non-Performing Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	5,686	4,416
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	274	281
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	5,412	4,135
Loans acquired | 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 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 | Substandard | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	274	281
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	5,412	4,135
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 | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	501	620
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	285	374
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	216	246
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Pass | Less 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 residential mortgage | 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 residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	285	374
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	216	246
Loans acquired | Non-Performing Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	0	0
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	446	566
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	41	152
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	405	414
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	41	152
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	405	414
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | 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 | Home equity and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	49	77
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 | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	49	77
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 | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans		0
Total Loans Include Loans Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated loans held-for-investment, net	3,320,701	3,225,027
Total Loans Include Loans Acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,309,818	3,215,832
Total Loans Include Loans Acquired | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-Performing Loans	10,883	9,195
0-29 Days Past Due | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	4,080	440
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,794,606	2,671,140
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	508,150	496,047
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	83,891	78,699
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	424,259	417,348
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	83,891	78,699
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	417,164	408,830
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	5,981	7,381
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	0
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	1,114	1,137
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	88,514	90,576
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	54,445	55,472
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	34,069	35,104
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	53,781	54,576
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	33,766	34,576
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	579	896
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	303	528
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	85	0
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	33,573	26,613
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	33,573	26,613
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	2,032,518	1,931,980
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	204,081	170,534
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	1,828,437	1,761,446
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	204,081	170,534
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	1,822,249	1,756,443
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	5,285	4,390
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	903	613
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	87,267	80,241
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	87,107	80,077
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	134	137
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	26	27
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	42,563	44,165
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	42,096	43,640
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	87	95
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	380	430
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	2,021	1,518
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	510,922	536,130
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	4
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	118,286	127,408
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	41,189	43,335
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	77,097	84,073
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	38,945	41,071
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	67,605	73,986
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	1,168	1,185
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	6,185	5,772
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	1,076	1,079
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	3,307	4,315
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	228,829	222,452
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	212,485	202,948
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	16,344	19,504
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	212,479	202,471
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	16,344	19,504
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	6	62
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | 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 | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	415
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	8,381	12,003
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	8,381	12,003
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	131,182	144,867
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	127,134	137,141
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	4,048	7,726
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	127,121	137,141
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	4,048	7,726
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 | Multifamily | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	13	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	14,341	17,506
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	14,265	17,427
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	76	79
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	9,899	11,888
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	9,899	11,888
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans		6
0-29 Days Past Due | Total Loans Include Loans Acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	3,305,528	3,207,270
30-89 Days Past Due | Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,908	2,128
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,009	4,221
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	610	938
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	610	613
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	0	325
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	223	218
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	325
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	0	0
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	387	395
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	0	0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,187	1,315
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	959	1,083
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	228	232
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	312	336
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Pass | Equal to or Greater than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	228	232
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | 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 residential mortgage | 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 | One-to-four family residential mortgage | Special Mention | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	647	747
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	0
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	0
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	0	1,966
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	298
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	0	1,668
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	298
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	439
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	0	1,229
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	0	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	0	0
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	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 | 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 | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	205	0
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	205	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	0	0
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	0	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	7	2
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	2,281	4,341
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	1,627	1,439
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	364	151
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	1,263	1,288
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	106	0
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	54	749
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	258	151
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	1,084	411
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	0
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	125	128
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	611	2,805
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	611	2,805
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | 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 residential mortgage | Pass | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	611	2,799
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | 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 residential mortgage | Substandard | Less Than 60% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	6
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-four family residential mortgage | 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 | One-to-four family residential mortgage | Special Mention | 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 | 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	52
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	52
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 | Multifamily | Special Mention | Less Than 35% LTV
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	0	52
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	0	0
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	0	0
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	43	45
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	43	45
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 | Total Loans Include Loans Acquired | Performing (Accruing) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing (Accruing) Loans	$ 4,290	$ 8,562

Loans - Summary of Impaired Loa

Loans - Summary of Impaired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 15,800	$ 16,600
Recorded investment	22,295	22,329
Unpaid Principal Balance	26,187	27,015
Impaired Financing Receivable, Related Allowance	(252)	(26)
Real Estate | Commercial
Financing Receivable, Impaired [Line Items]
Recorded investment	18,492	18,091
Unpaid Principal Balance	21,581	21,984
Impaired Financing Receivable, Related Allowance	(239)	0
Real Estate | One-to-four family residential mortgage
Financing Receivable, Impaired [Line Items]
Recorded investment	2,632	2,685
Unpaid Principal Balance	2,894	2,940
Impaired Financing Receivable, Related Allowance	(1)	(18)
Real Estate | Multifamily
Financing Receivable, Impaired [Line Items]
Recorded investment	1,048	1,419
Unpaid Principal Balance	1,519	1,890
Impaired Financing Receivable, Related Allowance	0	0
Real Estate | Home equity and lines of credit
Financing Receivable, Impaired [Line Items]
Recorded investment	58	61
Unpaid Principal Balance	58	61
Impaired Financing Receivable, Related Allowance	(8)	(5)
Real Estate | Home equity and lines of credit | Substandard
Financing Receivable, Impaired [Line Items]
Recorded Investment With a Related Allowance Recorded	33	33
Unpaid Principal Balance With a Related Allowance Recorded	33	33
Impaired Financing Receivable, Related Allowance	(8)	(5)
Real Estate | Home equity and lines of credit | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	25	28
Unpaid Principal Balance With No Related Allowance Recorded	25	28
Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded investment	65	73
Unpaid Principal Balance	135	140
Impaired Financing Receivable, Related Allowance	(4)	(3)
Commercial and Industrial | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	45	52
Unpaid Principal Balance With No Related Allowance Recorded	115	119
Commercial and Industrial | Special Mention
Financing Receivable, Impaired [Line Items]
Recorded Investment With a Related Allowance Recorded	20	21
Unpaid Principal Balance With a Related Allowance Recorded	20	21
Impaired Financing Receivable, Related Allowance	(4)	(3)
Less Than 35% LTV | Real Estate | Commercial | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	0
Unpaid Principal Balance With No Related Allowance Recorded	139	139
Less Than 35% LTV | Real Estate | Multifamily | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	41	152
Unpaid Principal Balance With No Related Allowance Recorded	41	152
Equal to or Greater than 35% LTV | Real Estate | Commercial | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	10,910	12,160
Recorded Investment With a Related Allowance Recorded	1,824	0
Unpaid Principal Balance With No Related Allowance Recorded	11,727	15,028
Unpaid Principal Balance With a Related Allowance Recorded	3,071	0
Impaired Financing Receivable, Related Allowance	(239)	0
Equal to or Greater than 35% LTV | Real Estate | Commercial | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	5,758	5,931
Unpaid Principal Balance With No Related Allowance Recorded	6,644	6,817
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	975	1,229
Unpaid Principal Balance With No Related Allowance Recorded	975	1,229
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	32	38
Unpaid Principal Balance With No Related Allowance Recorded	503	509
Less Than 60% LTV | Real Estate | One-to-four family residential mortgage | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	237	241
Recorded Investment With a Related Allowance Recorded	344	657
Unpaid Principal Balance With No Related Allowance Recorded	237	241
Unpaid Principal Balance With a Related Allowance Recorded	344	657
Impaired Financing Receivable, Related Allowance	(1)	(18)
Less Than 60% LTV | Real Estate | One-to-four family residential mortgage | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,803	1,532
Unpaid Principal Balance With No Related Allowance Recorded	1,882	1,606
Equal to or Greater than 60% LTV | Real Estate | One-to-four family residential mortgage | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	123	126
Unpaid Principal Balance With No Related Allowance Recorded	275	278
Equal to or Greater than 60% LTV | Real Estate | One-to-four family residential mortgage | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	125	129
Unpaid Principal Balance With No Related Allowance Recorded	$ 156	$ 158

Loans - Average Recorded Invest

Loans - Average Recorded Investment and Interest Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment	$ 21,900	$ 20,339	$ 22,042	$ 20,586
Impaired Financing Receivable, Interest Income, Cash Basis Method	206	205	416	410
Real Estate | Commercial
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment	17,951	15,790	17,998	15,862
Impaired Financing Receivable, Interest Income, Cash Basis Method	153	160	304	319
Real Estate | One-to-four family residential mortgage
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment	2,645	2,894	2,659	3,058
Impaired Financing Receivable, Interest Income, Cash Basis Method	32	24	66	50
Real Estate | Multifamily
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment	1,179	1,435	1,258	1,444
Impaired Financing Receivable, Interest Income, Cash Basis Method	21	21	44	38
Real Estate | Home equity and lines of credit
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment	59	66	59	67
Impaired Financing Receivable, Interest Income, Cash Basis Method	0	0	2	2
Real Estate | Home equity and lines of credit | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	33	35	33	35
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method			1	1
Real Estate | Home equity and lines of credit | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	26	31	26	32
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	1	1
Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment	66	154	68	155
Impaired Financing Receivable, Interest Income, Cash Basis Method	0	0	0	1
Commercial and Industrial | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	46	131	48	132
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		0	0	0
Commercial and Industrial | Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	20	23	20	23
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		0	0	1
Less Than 35% LTV | Real Estate | Multifamily | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	45	152	80	152
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	1	1	1	2
Equal to or Greater than 35% LTV | Real Estate | Commercial | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	10,979	9,650	11,373	9,681
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	57	75	129	150
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,171	0	781	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	17	0	17	0
Equal to or Greater than 35% LTV | Real Estate | Commercial | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	5,801	4,664	5,844	5,197
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	79	65	158	129
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	1,476	0	984
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		20	0	40
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,100	1,237	1,143	825
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	16	16	35	28
Equal to or Greater than 35% LTV | Real Estate | Multifamily | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	34	46	35	467
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	4	4	8	8
Less Than 60% LTV | Real Estate | One-to-four family residential mortgage | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	238	246	239	248
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	1	4	4	4
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	345	674	449	782
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	5	4	10	8
Less Than 60% LTV | Real Estate | One-to-four family residential mortgage | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,812	1,374	1,719	1,312
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	22	13	44	27
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	204	0	273
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		2	0	3
Equal to or Greater than 60% LTV | Real Estate | One-to-four family residential mortgage | Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	124	129	125	131
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	3	0	6	3
Equal to or Greater than 60% LTV | Real Estate | One-to-four family residential mortgage | Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	126	267	127	223
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	1	1	2	5
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	89
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		$ 0	$ 0	$ 0

Loans - Narrative, Troubled Deb

Loans - Narrative, Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)contract	Jun. 30, 2018contract	Jun. 30, 2019USD ($)contract	Jun. 30, 2018contract	Dec. 31, 2018USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract) | contract	0	0	2	0
Pre-modification balance			$ 2,836
Post-modification balance			2,836
Troubled debt restructurings	$ 19,700		$ 19,700		$ 16,900
Number of TDR loans restructured that subsequently defaulted (contract) | contract			0	0
One-to-Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract) | contract			1
Pre-modification balance			$ 2
Post-modification balance			$ 2
Commercial Mortgage Backed Securities
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of relationships (contract) | contract			1
Pre-modification balance			$ 2,834
Post-modification balance			$ 2,834

Deposits - Deposit Account Bala

Deposits - Deposit Account Balances (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Banking and Thrift [Abstract]
Non-interest-bearing demand	$ 386,784	$ 395,375
Interest-bearing negotiable orders of withdrawal (NOW)	486,529	458,012
Savings and money market	1,422,534	1,336,229
Certificates of deposit	1,004,344	1,096,896
Total deposits	$ 3,300,191	$ 3,286,512

Deposits - Interest Expense On

Deposits - Interest Expense On Deposits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Banking and Thrift [Abstract]
Negotiable orders of withdrawal, savings, and money market	$ 5,377	$ 2,312	$ 10,171	$ 4,455
Certificates of deposit	5,172	3,738	10,625	6,806
Total interest expense on deposit accounts	$ 10,549	$ 6,050	$ 20,796	$ 11,261

Equity Incentive Plans - Stock

Equity Incentive Plans - Stock Options Outstanding (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2019$ / sharesshares	Dec. 31, 2018$ / sharesshares
Number of Stock Options
Beginning Balance (shares) | shares	3,251,595
Forfeited (shares) | shares	(15,000)
Exercised (shares) | shares	(161,332)
Ending Balance (shares) | shares	3,075,263	3,251,595
Exercisable (shares) | shares	2,860,092
Weighted Average Grant Date Fair Value
Beginning Balance (usd per share)	$ 3.93
Forfeited (usd per share)	4.07
Exercised (usd per share)	2.61
Ending Balance (usd per share)	4	$ 3.93
Exercisable (usd per share)	3.98
Weighted Average Exercise Price
Beginning Balance (usd per share)	13.51
Forfeited (usd per share)	14.76
Exercised (usd per share)	8.06
Ending Balance (usd per share)	13.79	$ 13.51
Exercisable (usd per share)	$ 13.66
Weighted Average Contractual Life (years)
Weighted Average Contractual Life, Outstanding	5 years 4 months 13 days	5 years 7 months 13 days
Weighted Average Contractual Life, Exercisable	5 years 3 months 14 days

Equity Incentive Plans - Narrat

Equity Incentive Plans - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	May 22, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense		$ 1,100	$ 1,300	$ 2,400	$ 2,700
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future stock-based compensation expense	$ 580	580		$ 580
Average period of expected future stock option expense				1 year 29 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future stock-based compensation expense	$ 957	$ 957		$ 957
Average period of expected future stock option expense				1 year 1 month 13 days
Two Thousand Nineteen Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants under plan (in shares)	0
Two Thousand Nineteen Equity Incentive Plan | Employee Stock Option And Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (shares)							6,000,000
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 Fourteen Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expirations in period (shares)						348,373
Two Thousand Fourteen Equity Incentive Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, expirations (shares)						142,154

Equity Incentive Plans - Status

Equity Incentive Plans - Status of the Company's Restricted Share Awards (Details)	6 Months Ended
	Jun. 30, 2019$ / sharesshares
Number of Shares Awarded
Beginning Balance (shares) | shares	328,962
Vested (shares) | shares	(233,360)
Forfeitures (shares) | shares	(8,000)
Ending Balance (shares) | shares	87,602
Weighted Average Grant Date Fair Value
Beginning Balance (usd per share) | $ / shares	$ 14.31
Vested (usd per share) | $ / shares	13.78
Forfeitures (usd per share) | $ / shares	14.76
Ending Balance (usd per share) | $ / shares	$ 15.68

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	$ 1,049,660	$ 808,031
Trading securities	10,214	8,968
Impaired loans	6,258	5,697
Measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	1,049,660	808,031
Trading securities	10,214	8,968
Equity securities	269	237
Total	1,060,143	817,236
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	844,886	565,009
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	384,134	314,788
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	460,697	250,163
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	55	58
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	273	273
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	204,501	242,749
Measured on a recurring basis | Other debt obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	204,774	243,022
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	10,214	8,968
Equity securities	269	237
Total	10,483	9,205
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) | Other debt obligations
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	1,049,660	808,031
Trading securities	0	0
Equity securities	0	0
Total	1,049,660	808,031
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	844,886	565,009
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	384,134	314,788
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	460,697	250,163
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	55	58
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	273	273
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	204,501	242,749
Measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Other debt obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	204,774	243,022
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) | 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) | Other debt obligations
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	6,258	5,697
Measured on a non-recurring basis | Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	6,244	5,679
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	5,721	4,847
Measured on a non-recurring basis | Real Estate | One-to-four family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	466	765
Measured on a non-recurring basis | Real Estate | Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	32	39
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	25	28
Measured on a non-recurring basis | Commercial and Industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	14	18
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 | One-to-four family residential mortgage
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 | One-to-four family residential mortgage
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	6,258	5,697
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	6,244	5,679
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	5,721	4,847
Measured on a non-recurring basis | Significant Unobservable Inputs (Level 3) | Real Estate | One-to-four family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	466	765
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	32	39
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	25	28
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	$ 14	$ 18

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	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	$ 6,258	$ 5,697
Appraisals | Discount for costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, input	0.070	0.070
Appraisals | Discount for quick sale
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, input		0.100
Appraisals | Discount for quick sale | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, input	0.10
Appraisals | Discount for quick sale | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, input	0.15
Discounted cash flows | Interest rates | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, input	0.0413	0.0413
Discounted cash flows | Interest rates | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, input	0.0625	0.0625

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Impaired loans held-for-investment and held-for-sale with outstanding principal balances	$ 10,200,000
Estimated fair value of impaired loans held-for-investment and held-for-sale	6,300,000		$ 5,700,000
Increase (decrease) in net impairment charges	226,000	$ 39,000
Net recoveries (charge offs)	(215,000)	$ (127,000)
Assets acquired through foreclosure, or deed in lieu of foreclosure	$ 0		$ 0

Fair Value Measurements - Estim

Fair Value Measurements - Estimated Fair Values of the Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financial assets:
Trading securities	$ 10,214	$ 8,968
Debt securities available-for-sale	1,049,660	808,031
Debt securities held-to-maturity	8,877	9,249
Financial liabilities:
Equity securities not been classified in the fair value	2,100	1,000
Carrying Value
Financial assets:
Cash and cash equivalents	46,907	77,762
Trading securities	10,214	8,968
Debt securities available-for-sale	1,049,660	808,031
Debt securities held-to-maturity	8,872	9,505
Equity securities	269	237
Federal Home Loan Bank of New York stock, at cost	32,330	22,517
Net loans held-for-investment	3,310,946	3,217,673
Financial liabilities:
Deposits	3,300,191	3,286,512
Borrowed funds	695,105	408,891
Advance payments by borrowers for taxes and insurance	20,817	18,007
Estimated Fair Value
Financial assets:
Cash and cash equivalents	46,907	77,762
Trading securities	10,214	8,968
Debt securities available-for-sale	1,049,660	808,031
Debt securities held-to-maturity	8,877	9,249
Equity securities	269	237
Federal Home Loan Bank of New York stock, at cost	32,330	22,517
Net loans held-for-investment	3,351,040	3,236,136
Financial liabilities:
Deposits	3,306,004	3,291,085
Borrowed funds	698,569	403,476
Advance payments by borrowers for taxes and insurance	20,817	18,007
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	46,907	77,762
Trading securities	10,214	8,968
Debt securities available-for-sale	0	0
Debt securities held-to-maturity	0	0
Equity securities	269	237
Federal Home Loan Bank of New York stock, at cost	0	0
Net loans held-for-investment	0	0
Financial liabilities:
Deposits	0	0
Borrowed funds	0	0
Advance payments by borrowers for taxes and insurance	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	1,049,660	808,031
Debt securities held-to-maturity	8,877	9,249
Equity securities	0	0
Federal Home Loan Bank of New York stock, at cost	32,330	22,517
Net loans held-for-investment	0	0
Financial liabilities:
Deposits	3,306,004	3,291,085
Borrowed funds	698,569	403,476
Advance payments by borrowers for taxes and insurance	20,817	18,007
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	3,351,040	3,236,136
Financial liabilities:
Deposits	0	0
Borrowed funds	0	0
Advance payments by borrowers for taxes and insurance	$ 0	$ 0

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 8,204	$ 10,612	$ 16,975	$ 21,056
Weighted average shares outstanding-basic (shares)	46,855,647	46,184,918	46,897,546	45,983,895
Effect of non-vested restricted stock and stock options outstanding (shares)	416,043	925,059	381,650	1,072,404
Weighted average shares outstanding-diluted (shares)	47,271,690	47,109,977	47,279,196	47,056,299
Earnings per share-basic (usd per share)	$ 0.18	$ 0.23	$ 0.36	$ 0.46
Earnings per share-diluted (usd per share)	$ 0.17	$ 0.23	$ 0.36	$ 0.45
Anti-dilutive shares (shares)	848,844	858,844	962,296	872,294

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Fees and service charges for customer services	$ 1,207	$ 1,147	$ 2,347	$ 2,361
Income on bank owned life insurance	907	914	1,804	1,868
Gains on available-for-sale debt securities, net	59	116	214	171
Gains on trading securities, net	343	197	1,429	302
Other	50	71	86	147
Total non-interest income	2,566	2,445	5,880	4,849
Service charges
Disaggregation of Revenue [Line Items]
Fees and service charges for customer services	812	771	1,594	1,612
ATM and card interchange fees
Disaggregation of Revenue [Line Items]
Fees and service charges for customer services	339	313	640	580
Investment fees
Disaggregation of Revenue [Line Items]
Fees and service charges for customer services	$ 56	$ 63	$ 113	$ 169

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 42,377
Operating lease liabilities	$ 46,321
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets		$ 43,600
Operating lease liabilities		$ 47,300

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets			$ 42,377
Operating lease liabilities			$ 46,321
Operating lease, rent expense, net	$ 1,500	$ 2,800
Minimum
Lessee, Lease, Description [Line Items]
Term of lease			15 months
Renewal term			5 years
Maximum
Lessee, Lease, Description [Line Items]
Term of lease			36 years
Renewal term			10 years

Leases - Supplemental Lease Inf

Leases - Supplemental Lease Information (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating lease cost	$ 1,551	$ 3,017
Variable lease cost	711	1,489
Net lease cost	2,262	4,506
Cash paid for amounts included in measurement of operating lease liabilities	1,513	2,840
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 0	$ 1,013
Weighted average remaining lease term at June 30, 2019	12 years 11 months 12 days	12 years 11 months 12 days
Weighted average discount rate at June 30, 2019	3.61%	3.61%

Leases - Lease Payments Obligat

Leases - Lease Payments Obligations (Details) $ in Thousands	Jun. 30, 2019USD ($)
Leases [Abstract]
2019	$ 3,061
2020	6,156
2021	5,729
2022	5,068
2023	4,975
Thereafter	35,288
Total lease payments	60,277
Less: imputed interest	13,956
Present value of lease liabilities	$ 46,321

Leases - Projected Minimum Leas

Leases - Projected Minimum Lease Payments Under Operating Leases (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 5,735
2020	5,949
2021	5,512
2022	4,844
2023	4,744
Thereafter	35,260
Total minimum lease payments	$ 62,044

Subsequent Event (Details)

Subsequent Event (Details) $ in Thousands	1 Months Ended	6 Months Ended
	Jul. 31, 2019USD ($)loan	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)
Subsequent Event [Line Items]
Proceeds from bank owned life insurance		$ 0	$ 174
Subsequent Event
Subsequent Event [Line Items]
Number of loans | loan	2
Proceeds from recoveries of loans previously charged off	$ 2,300
Proceeds from bank owned life insurance	$ 2,400