Banc of California (BANC) 10-Q 9 Aug 19 2019 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2019	Aug. 05, 2019
Document Information [Line Items]
Document Transition Report	false
Document Quarterly Report	true
Document Type	10-Q
Entity File Number	001-35522
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Registrant Name	BANC OF CALIFORNIA, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	04-3639825
Entity Address, Address Line One	3 MacArthur Place
Entity Address, City or Town	Santa Ana
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92707
City Area Code	855
Local Phone Number	361-2262
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Central Index Key	0001169770
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Common Stock
Document Information [Line Items]
Trading Symbol	BANC
Title of 12(b) Security	Common Stock, par value $0.01 per share
Entity Common Stock, Shares Outstanding		50,402,771
Security Exchange Name	NYSE
Series D 7.375% non-cumulative perpetual
Document Information [Line Items]
Trading Symbol	BANC PRD
Title of 12(b) Security	Depositary Shares -- 7.375% non-cumulative perpetual preferred stock, series D
Security Exchange Name	NYSE
Series E 7.00% non-cumulative perpetual
Document Information [Line Items]
Trading Symbol	BANC PRE
Title of 12(b) Security	Depositary Shares -- 7.00% non-cumulative perpetual preferred stock, series E
Security Exchange Name	NYSE
Class B Non-Voting Non-Convertible Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		477,321

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
ASSETS
Cash and due from banks	$ 26,283	$ 21,875
Interest-earning deposits in financial institutions	287,567	369,717
Total cash and cash equivalents	313,850	391,592
Securities available-for-sale, at fair value	1,167,687	1,992,500
Loans held-for-sale, carried at fair value	23,794	7,690
Loans held-for-sale, carried at lower of cost or fair value	573,926	426
Loans receivable	6,719,570	7,700,873
Allowance for loan losses	(59,523)	(62,192)
Loans and leases receivable, net	6,660,047	7,638,681
Federal Home Loan Bank and other bank stock, at cost	76,373	68,094
Premises, equipment, and capital leases, net	129,227	129,394
Bank owned life insurance	108,132	107,027
Operating lease right-of-use assets	24,118
Goodwill	37,144	37,144
Investments in alternative energy partnerships, net	26,633	28,988
Deferred income taxes, net	42,798	49,404
Income tax receivable	2,547	2,695
Other intangible assets, net	5,105	6,346
Other assets	168,550	150,596
Assets of discontinued operations	0	19,490
Total assets	9,359,931	10,630,067
LIABILITIES AND STOCKHOLDERS’ EQUITY
Noninterest-bearing deposits	993,745	1,023,360
Interest-bearing deposits	5,298,545	6,893,284
Total deposits	6,292,290	7,916,644
Advances from Federal Home Loan Bank	1,825,000	1,520,000
Long term debt, net	173,257	173,174
Total Lease Liability	25,457
Accrued expenses and other liabilities	80,383	74,715
Total liabilities	8,396,387	9,684,533
Commitments and contingent liabilities
Preferred stock	231,128	231,128
Additional paid-in capital	627,306	625,834
Retained earnings	146,039	140,952
Treasury stock, at cost (1,583,380 shares at June 30, 2019 and December 31, 2018)	(28,786)	(28,786)
Accumulated other comprehensive loss, net	(12,668)	(24,117)
Total stockholders’ equity	963,544	945,534
Total liabilities and stockholders’ equity	9,359,931	10,630,067
Class A Common Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Common stock	520	518
Class B Common Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Common stock	$ 5	$ 5

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Treasury stock (in shares)	1,583,380	1,583,380
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	446,863,844	446,863,844
Common stock, shares issued (in shares)	51,981,149	51,755,398
Common stock, shares outstanding (in shares)	50,397,769	50,172,018
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	3,136,156	3,136,156
Common stock, shares issued (in shares)	477,321	477,321
Common stock, shares outstanding (in shares)	477,321	477,321

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest and dividend income
Loans, including fees	$ 89,159	$ 90,558	$ 81,307	$ 179,717	$ 156,219
Securities	12,457	17,841	21,455	30,298	43,086
Other interest-earning assets	2,424	2,313	2,423	4,737	4,587
Total interest and dividend income	104,040	110,712	105,185	214,752	203,892
Interest expense
Deposits	28,598	31,443	20,315	60,041	37,110
Federal Home Loan Bank advances	8,289	9,081	9,539	17,370	16,931
Securities sold under repurchase agreements	16	18	211	34	961
Long term debt and other interest-bearing liabilities	2,357	2,362	2,356	4,719	4,688
Total interest expense	39,260	42,904	32,421	82,164	59,690
Net interest income	64,780	67,808	72,764	132,588	144,202
(Reversal of) provision for loan losses	(1,987)	2,512	2,653	525	22,152
Net interest income after provision for loan losses	66,767	65,296	70,111	132,063	122,050
Noninterest income
Customer service fees	1,434	1,515	1,491	2,949	3,083
Loan servicing income	121	118	948	239	3,259
Income from bank owned life insurance	580	525	533	1,105	1,066
Net gain on sale of securities available-for-sale	0	208	278	208	5,519
Net gain on sale of loans	2,826	1,553	821	4,379	780
Net loss on sale of mortgage servicing rights	0	0	(155)	0	(2,450)
Other (loss) income	(7,251)	2,376	4,145	(4,875)	5,386
Total noninterest (loss) income	(2,290)	6,295	8,061	4,005	16,643
Noninterest expense
Salaries and employee benefits	27,506	28,439	29,440	55,945	60,555
Occupancy and equipment	7,955	7,686	7,883	15,641	15,570
Professional fees (reimbursement)	(2,903)	11,041	6,303	8,138	15,480
Outside service fees	489	403	413	892	2,959
Data processing	1,672	1,496	1,678	3,168	3,334
Advertising and promotion	2,048	2,057	2,864	4,105	6,141
Regulatory assessments	2,136	2,482	2,196	4,618	4,288
(Gain) loss on investments in alternative energy partnerships	(355)	1,950	1,808	1,595	1,774
Reversal of provision for loan repurchases	(61)	(116)	(218)	(177)	(2,006)
Amortization of intangible assets	621	620	827	1,241	1,670
Restructuring (reversal) expense	(158)	2,795	3,983	2,637	3,983
All other expense	4,637	2,982	5,362	7,619	8,591
Total noninterest expense	43,587	61,835	62,539	105,422	122,339
Income from continuing operations before income taxes	20,890	9,756	15,633	30,646	16,354
Income tax expense (benefit)	4,308	2,719	1,779	7,027	(4,574)
Income from continuing operations	16,582	7,037	13,854	23,619	20,928
Income from discontinued operations before income taxes (including net gain on disposal of $0, $0 and $272 for the three months ended June 30, 2019, March 31, 2019 and 2018, respectively, and $0 and $1,275 for the six months ended June 30, 2019 and 2018, respectively)	0	0	1,281	0	3,325
Income tax expense	0	0	355	0	915
Income from discontinued operations	0	0	926	0	2,410
Net income	16,582	7,037	14,780	23,619	23,338
Preferred stock dividends	4,308	4,308	5,113	8,616	10,226
Income allocated to participating securities	271	0	86	153	0
Participating securities dividends	94	202	203	295	406
Net income available to common stockholders	$ 11,909	$ 2,527	$ 9,378	$ 14,555	$ 12,706
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.23		$ 0.17	$ 0.29	$ 0.20
Income from discontinued operations (in usd per share)	0		0.02	0	0.05
Net income (in usd per share)	0.23		0.19	0.29	0.25
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.23		0.16	0.29	0.20
Income from discontinued operations (in usd per share)	0		0.02	0	0.05
Net income (in usd per share)	$ 0.23		$ 0.18	$ 0.29	$ 0.25
Class A Common Stock
Noninterest expense
Income from continuing operations	$ 16,426		$ 13,709	$ 23,397	$ 20,713
Income from discontinued operations	0		916	0	2,385
Preferred stock dividends	4,268		5,059	8,535	10,121
Income allocated to participating securities	268		85	152	0
Participating securities dividends	$ 93		$ 201	$ 292	$ 402
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.23	$ 0.05	$ 0.17	$ 0.29	$ 0.20
Income from discontinued operations (in usd per share)	0	0	0.02	0	0.05
Net income (in usd per share)	0.23	0.05	0.19	0.29	0.25
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.23	0.05	0.16	0.29	0.20
Income from discontinued operations (in usd per share)	0	0	0.02	0	0.05
Net income (in usd per share)	$ 0.23	0.05	$ 0.18	$ 0.29	$ 0.25
Class B Common Stock
Noninterest expense
Income from continuing operations	$ 156		$ 145	$ 222	$ 215
Income from discontinued operations	0		10	0	25
Preferred stock dividends	40		54	81	105
Income allocated to participating securities	3		1	1	0
Participating securities dividends	$ 1		$ 2	$ 3	$ 4
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.23	0.05	$ 0.17	$ 0.29	$ 0.20
Income from discontinued operations (in usd per share)	0	0	0.02	0	0.05
Net income (in usd per share)	0.23	0.05	0.19	0.29	0.25
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.23	0.05	0.17	0.29	0.20
Income from discontinued operations (in usd per share)	0	0	0.02	0	0.05
Net income (in usd per share)	$ 0.23	$ 0.05	$ 0.19	$ 0.29	$ 0.25

Consolidated Statements of In_2

Consolidated Statements of Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net gain on disposal	$ 0	$ 0	$ 272	$ 0	$ 1,275

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 16,582	$ 7,037	$ 14,780	$ 23,619	$ 23,338
Unrealized gain (loss) on available-for-sale securities:
Unrealized gain (loss) arising during the period	5,423	6,173	(7,631)	11,596	(21,192)
Reclassification adjustment for gain included in net income	0	(147)	(197)	(147)	(3,901)
Total change in unrealized gain (loss) on available-for-sale securities	5,423	6,026	(7,828)	11,449	(25,093)
Total other comprehensive income (loss)	5,423	6,026	(7,828)	11,449	(25,093)
Comprehensive income (loss)	$ 22,005	$ 13,063	$ 6,952	$ 35,068	$ (1,755)

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common StockClass A Common Stock	Common StockClass B Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2017	$ 1,012,308	$ 269,071	$ 517	$ 5	$ 621,435	$ 144,839	$ (28,786)	$ 5,227
Comprehensive income (loss):
Net income	8,558					8,558
Other comprehensive income (loss), net	(17,265)							(17,265)
Share-based compensation expense	2,087				2,087
Restricted stock surrendered due to employee tax liability	(97)				(97)
Shares purchased under the Dividend Reinvestment Plan	(16)				58	(74)
Stock appreciation right dividend equivalents	(203)					(203)
Dividends declared	(6,503)					(6,503)
Preferred stock dividends	(5,113)					(5,113)
Ending Balance at Mar. 31, 2018	993,756	269,071	517	5	623,483	141,008	(28,786)	(11,542)
Beginning Balance at Dec. 31, 2017	1,012,308	269,071	517	5	621,435	144,839	(28,786)	5,227
Comprehensive income (loss):
Net income	23,338
Other comprehensive income (loss), net	(25,093)
Ending Balance at Jun. 30, 2018	988,688	269,071	517	4	623,372	143,880	(28,786)	(19,370)
Beginning Balance at Mar. 31, 2018	993,756	269,071	517	5	623,483	141,008	(28,786)	(11,542)
Comprehensive income (loss):
Net income	14,780					14,780
Other comprehensive income (loss), net	(7,828)							(7,828)
Share-based compensation expense	1,788				1,788
Issuance of common stock	0		1	(1)	0
Restricted stock surrendered due to employee tax liability	(1,974)		(1)		(1,973)
Shares purchased under the Dividend Reinvestment Plan	6				74	(68)
Stock appreciation right dividend equivalents	(203)					(203)
Dividends declared	(6,524)					(6,524)
Preferred stock dividends	(5,113)					(5,113)
Ending Balance at Jun. 30, 2018	988,688	269,071	517	4	623,372	143,880	(28,786)	(19,370)
Beginning Balance at Dec. 31, 2018	945,534	231,128	518	5	625,834	140,952	(28,786)	(24,117)
Comprehensive income (loss):
Net income	7,037					7,037
Other comprehensive income (loss), net	6,026							6,026
Share-based compensation expense	853				853
Restricted stock surrendered due to employee tax liability	(79)				(79)
Shares purchased under the Dividend Reinvestment Plan	(50)					(50)
Stock appreciation right dividend equivalents	(202)					(202)
Dividends declared	(6,486)					(6,486)
Preferred stock dividends	(4,308)					(4,308)
Ending Balance at Mar. 31, 2019	948,325	231,128	518	5	626,608	136,943	(28,786)	(18,091)
Beginning Balance at Dec. 31, 2018	945,534	231,128	518	5	625,834	140,952	(28,786)	(24,117)
Comprehensive income (loss):
Net income	23,619
Other comprehensive income (loss), net	11,449
Issuance of common stock	0		2		(2)
Ending Balance at Jun. 30, 2019	963,544	231,128	520	5	627,306	146,039	(28,786)	(12,668)
Beginning Balance at Mar. 31, 2019	948,325	231,128	518	5	626,608	136,943	(28,786)	(18,091)
Comprehensive income (loss):
Net income	16,582					16,582
Other comprehensive income (loss), net	5,423							5,423
Share-based compensation expense	1,497				1,497
Restricted stock surrendered due to employee tax liability	(797)				(797)
Shares purchased under the Dividend Reinvestment Plan	(26)					(26)
Stock appreciation right dividend equivalents	(94)					(94)
Dividends declared	(3,058)					(3,058)
Preferred stock dividends	(4,308)					(4,308)
Ending Balance at Jun. 30, 2019	$ 963,544	$ 231,128	$ 520	$ 5	$ 627,306	$ 146,039	$ (28,786)	$ (12,668)

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Dividends declared, per common share (in dollars per share)	$ 0.06	$ 0.13	$ 0.13	$ 0.13

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 23,619	$ 23,338
Adjustments to reconcile net income to net cash provided by operating activities
(Reversal of) provision for loan losses	525	22,152
(Reversal of) provision for unfunded loan commitments	(327)	315
Reversal of provision for loan repurchases	(177)	(2,006)
Depreciation on premises and equipment	5,290	5,212
Amortization of intangible assets	1,241	1,670
Amortization of debt issuance cost	83	76
Net amortization of premium and discount on securities	649	530
Net accretion of deferred loan costs and fees	83	(228)
Accretion of discounts on purchased loans	(125)	(562)
Deferred income tax expense (benefit)	1,841	(852)
Bank owned life insurance income	(1,105)	(1,066)
Share-based compensation expense	2,350	3,875
Loss on interest rate swaps	9,583	0
Loss on investments in alternative energy partnerships	1,595	1,774
Impairment on capitalized software projects	835	498
Net revenue from mortgage banking activities	0	(288)
Net gain on sale of loans	(4,379)	(780)
Net gain on sale of securities available for sale	(208)	(5,519)
Loss from change of fair value of mortgage servicing rights	0	1,241
Loss on sale or disposal of property and equipment	9	61
Loss on sale of mortgage servicing rights	0	2,450
Net gain on disposal of discontinued operations	0	(1,275)
Repurchase of mortgage loans	(699)	(11,091)
Originations of other loans held-for-sale	0	(6,274)
Proceeds from sales of and principal collected on loans held-for-sale from mortgage banking	3,849	15,417
Proceeds from sales of and principal collected on other loans held-for-sale	426	5,751
Change in accrued interest receivable and other assets	(13,403)	5,117
Change in accrued interest payable and other liabilities	(5,341)	(8,678)
Net cash provided by operating activities	26,214	50,858
Cash flows from investing activities:
Proceeds from sales of securities available-for-sale	782,019	392,556
Proceeds from maturities and calls of securities available-for-sale	38,029	220,400
Proceeds from principal repayments of securities available-for-sale	20,538	20,451
Purchases of securities available-for-sale	0	(247,530)
Loan and lease originations and principal collections, net	(149,182)	(602,103)
Redemption of Federal Home Loan Bank stock	(38,039)
Redemption of Federal Home Loan Bank stock		13,642
Purchase of Federal Home Loan Bank and other bank stock	29,760	(13,725)
Proceeds from sale of loans	558,021	211,459
Proceeds from sale of other real estate owned	551	1,484
Proceeds from sale of mortgage servicing rights	0	30,056
Proceeds from sale of premises and equipment	0	19
Purchases of premises and equipment	(5,967)	(5,569)
Payments of capital lease obligations	(259)	(253)
Funding of equity investment	(1,501)	(1,864)
Decrease in investments in alternative energy partnerships	760	1,027
Net cash provided by investing activities	1,234,730	20,050
Cash flows from financing activities:
Net decrease in deposits	(1,624,354)	(157,109)
Net increase (decrease) in short-term Federal Home Loan Bank advances	305,000	(270,000)
Proceeds from long-term Federal Home Loan Bank advances	0	380,000
Purchase of restricted stock surrendered due to employee tax liability	(876)	(2,071)
Dividend equivalents paid on stock appreciation rights	(296)	(404)
Dividends paid on preferred stock	(8,616)	(10,226)
Dividends paid on common stock	(9,544)	(13,106)
Net cash used in financing activities	(1,338,686)	(72,916)
Net change in cash and cash equivalents	(77,742)	(2,008)
Cash and cash equivalents at beginning of period	391,592	387,699
Cash and cash equivalents at end of period	313,850	385,691
Supplemental cash flow information
Interest paid on deposits and borrowed funds	85,733	58,727
Income taxes paid	2,822	2,337
Income taxes refunds received	7	24
Supplemental disclosure of non-cash activities
Transfer from loans to other real estate owned, net	276	434
Transfer of loans held-for-investment to loans held-for-sale	1,127,339	211,824
Equipment acquired under capital leases	40	21
Operating lease right of use assets recognized	27,421
Operating lease liabilities recognized	28,822
Reclassification of stranded tax effects to retained earnings	0	496
Due on unsettled securities purchases	$ 0	$ 132,546

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations: Banc of California, Inc. (collectively, with its consolidated subsidiaries, the Company, we, us and our) is a financial holding company under the Bank Holding Company Act of 1956, as amended, headquartered in Santa Ana, California and incorporated under the laws of Maryland. Banc of California, Inc. is subject to regulation by the Board of Governors of the Federal Reserve System (FRB) and its wholly owned subsidiary, Banc of California, National Association (the Bank), operates under a national bank charter issued by the Office of the Comptroller of the Currency (OCC), the Bank's primary regulator. The Bank is a member of the Federal Home Loan Bank (FHLB) system, and maintains insurance on deposit accounts with the Federal Deposit Insurance Corporation (FDIC). The Bank offers a variety of financial services to meet the banking and financial needs of the communities it serves, with operations conducted through 32 banking offices, serving San Diego, Los Angeles, Santa Barbara, and Orange counties in California as of June 30, 2019 . Basis of Presentation: The accompanying unaudited interim consolidated financial statements have been prepared pursuant to Article 10 of SEC Regulation S-X and other SEC rules and regulations for reporting on the Quarterly Report on Form 10-Q. Accordingly, certain disclosures required by U.S. generally accepted accounting principles (GAAP) are not included herein. These interim statements should be read in conjunction with the consolidated financial statements and notes included in the Annual Report on Form 10-K for the year ended December 31, 2018 filed by the Company with the SEC. The December 31, 2018 consolidated statements of financial condition presented herein has been derived from the audited financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2018 filed with the SEC, but does not include all of the disclosures required by GAAP for complete financial statements. In the opinion of management of the Company, the accompanying unaudited interim consolidated financial statements reflect all of the adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the consolidated financial condition and consolidated results of operations as of the dates and for the periods presented. The results of operations for the three and six months ended June 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019 . Principles of Consolidation: The accompanying unaudited consolidated financial statements include the accounts of the Company and its consolidated subsidiaries as of June 30, 2019 and December 31, 2018 and for the three and six months ended June 30, 2019 and 2018 . Significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, all references to the Company include its then wholly owned subsidiaries. Significant Accounting Policies: The accounting and reporting policies of the Company are based upon GAAP and conform to predominant practices within the banking industry. The Company has not made any significant changes in its critical accounting policies from those disclosed in its Annual Report on Form 10-K for the year ended December 31, 2018 filed with the SEC, except for the accounting for leases as described below. Leases. The Company determines if an arrangement is a lease at inception. The Company’s operating lease agreements are primarily for real estate space and are included within right of use (ROU) assets and lease liabilities on the June 30, 2019 consolidated balance sheet. The ROU asset is based on the operating lease liabilities adjusted for any prepaid or deferred rent. The Company has elected not to recognize on its consolidated balance sheet leases with terms of one-year or less. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, the Company uses its incremental borrowing rate, which is the rate incurred to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment, at lease commencement date in determining the present value of lease payments. Many of the Company’s lessee agreements include options to extend the lease, which the Company does not include in its minimum lease terms unless they are reasonably certain to be exercised. The Company elected the practical expedient to combine its lease and related nonlease components for the Company’s building leases. Rental expense for lease payments related to operating leases is recognized on a straight-line basis over the lease term Use of Estimates in the Preparation of Financial Statements: The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and disclosures provided, and actual results could differ. The allowance for loan losses (ALLL), reserve for loss on repurchased loans, reserve for unfunded loan commitments, realization of deferred tax assets, the valuation of goodwill and other intangible assets, mortgage banking and other derivatives, Hypothetical Liquidation at Book Value (HLBV) of investments in alternative energy partnerships, and the fair value measurement of financial instruments are particularly subject to change and such change could have a material effect on the consolidated financial statements. Discontinued Operations: During the three months ended March 31, 2017, the Company completed the sale of its Banc Home Loans division, which largely represented the Company's Mortgage Banking segment. In accordance with Accounting Standards Codification (ASC) 205-20, the Company determined that the sale of the Banc Home Loans division and certain other mortgage banking related assets and liabilities that would be sold or settled separately within one year met the criteria to be classified as a discontinued operation and the related operating results and financial condition have been presented as discontinued operations on the consolidated financial statements. See Note 2 for additional information. Unless otherwise indicated, information included in these notes to the consolidated financial statements is presented on a consolidated operations basis, which includes results from both continuing and discontinued operations, as of December 31, 2018 and for the three and six months ended June 30, 2018 . There were no material assets, liabilities or operating income as of and for the three and six months ended June 30, 2019 related to discontinued operations. Restructuring Expense: During the three and six months ended June 30, 2019 , the Company continued to implement its strategic objective to de-emphasize the production of low margin loan products through its exit from the third-party mortgage origination ("TPMO") and brokered single family lending business. The Company recognized a reversal of restructuring costs of $(158) thousand and restructuring costs of $2.6 million for the three and six months ended June 30, 2019 , respectively, associated with the exit from the TPMO and brokered single family lending business and CEO transition. Adopted Accounting Pronouncements: During the six months ended June 30, 2019 , the following pronouncements applicable to the Company were adopted: In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (ASU) 2016-02 Topic 842, “Leases” which increases transparency and comparability among organizations by requiring the recognition of right of use (ROU) assets and lease liabilities on the balance sheet. Most prominent among the changes in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases. Under the standard, disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Company adopted Topic 842 and related updates effective January 1, 2019 and used the effective date as the date of initial application, and therefore, periods prior to January 1, 2019 were not restated. The Company elected the package of practical expedients, which permits us not to reassess prior conclusions about lease identifications, lease classification and initial direct costs under the new standard. The Company did not elect to apply the hindsight practical expedient pertaining to using hindsight knowledge as of the effective date when determining lease terms and impairment. The Company also has elected the short-term lease recognition exemption (leases with terms 12 months or less) for all leases that qualify, and thus will not recognize ROU assets or lease liabilities for those leases. In addition, the Company elected the practical expedient to not separate lease and non-lease components for all of our leases. Upon adoption, the Company recognized on its consolidated balance sheet ROU assets of approximately $23.3 million (inclusive of an adjustment to remove the Company's existing deferred rent liability of approximately $1.4 million ) with a corresponding operating lease liability of approximately $24.7 million . The standard did not have an impact on our consolidated statements of income. In addition, the Company's accounting for finance leases remained substantially unchanged.

SALE OF BUSINESS UNIT (DISCONTI

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS)	6 Months Ended
	Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS)	SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) Banc Home Loans Sale On March 30, 2017, the Company completed the sale of specific assets and activities related to its Banc Home Loans division to Caliber Home Loans, Inc. (Caliber). The Banc Home Loans division largely represented the Company's Mortgage Banking segment, the activities of which related to originating, servicing, underwriting, funding and selling single family residential (SFR) mortgage loans. Assets sold to Caliber included mortgage servicing rights (MSRs) on certain conventional agency SFR mortgage loans. The Banc Home Loans division, along with certain other mortgage banking related assets and liabilities that were sold or settled separately within one year, was classified as discontinued operations in the accompanying Consolidated Statements of Financial Condition and Consolidated Statements of Income at December 31, 2018 and for the three and six months ended June 30, 2018 . Certain components of the Company’s Mortgage Banking segment, including MSRs on certain conventional agency SFR mortgage loans that were not sold as part of the Banc Home Loans sale and repurchase reserves related to previously sold loans, have been classified as continuing operations in the consolidated financial statements as they remain part of the Company’s ongoing operations. Refer to Note 2 of the Consolidated Financial Statements in the Company's Annual Report on Form 10-K for the year ended December 31, 2018 for additional information related to this sale. There were no gains related to the disposal during the three and six months ended June 30, 2019 . For the three and six months ended June 30, 2018 , the Company recognized gains related to the disposal of $272 thousand and $1.3 million , respectively. During the three months ended June 30, 2019 and 2018 , the Company recognized earn-out income of $755 thousand and $777 thousand , respectively, related to the sale to Caliber. During the six months ended June 30, 2019 and 2018 , the Company recognized an earn-out of $1.2 million and $1.4 million , respectively. At June 30, 2019 there were no material assets or liabilities associated with discontinued operations. At December 31, 2018 , assets and liabilities of discontinued operations totaled $19.5 million and zero , respectively.

FAIR VALUES OF FINANCIAL INSTRU

FAIR VALUES OF FINANCIAL INSTRUMENTS	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
FAIR VALUES OF FINANCIAL INSTRUMENTS	FAIR VALUES OF FINANCIAL INSTRUMENTS Fair Value Hierarchy ASC 820-10 establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The topic describes three levels of inputs that may be used to measure fair value: • Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. • Level 2: Significant observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. • Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Assets and Liabilities Measured on a Recurring Basis Securities Available-for-Sale: The fair values of securities available-for-sale are generally determined by quoted market prices in active markets, if available (Level 1). If quoted market prices are not available, the Company primarily employs independent pricing services that utilize pricing models to calculate fair value. Such fair value measurements consider observable data such as dealer quotes, market spreads, cash flows, yield curves, live trading levels, trade execution data, market consensus prepayment speeds, credit information, and respective terms and conditions for debt instruments. The Company employs procedures to monitor the pricing service's assumptions and establishes processes to challenge the pricing service's valuations that appear unusual or unexpected. Level 2 securities include U.S. Small Business Administration (SBA) loan pool securities, U.S. government agency and U.S. government sponsored enterprise (GSE) residential mortgage-backed securities, non-agency residential mortgage-backed securities, non-agency commercial mortgage-backed securities, collateralized loan obligations, and corporate debt securities. When a market is illiquid or there is a lack of transparency around the inputs to valuation, including at least one unobservable input, the securities are classified as Level 3 and reliance is placed upon internally developed models, and management judgment and evaluation for valuation. The Company had no securities available-for-sale classified as Level 3 at June 30, 2019 or December 31, 2018 . Loans Held-for-Sale, Carried at Fair Value: The fair value of loans held-for-sale is based on commitments outstanding from investors as well as what secondary market investors are currently offering for portfolios with similar characteristics, except for loans that are repurchased out of GNMA loan pools that become severely delinquent which are valued based on an internal model that estimates the expected loss the Company will incur on these loans. Loans previously sold to GNMA that are delinquent more than 90 days are subject to a repurchase option when that condition exists. These loans are re-recognized at fair value and offset by a secured borrowing, as the loans are still legally owned by GNMA but failed sale accounting treatment under GAAP due to the repurchase option. Loans held-for-sale subject to recurring fair value adjustments are classified as Level 2 or, in the case of loans repurchased, Level 3. The fair value includes the servicing value of the loans as well as any accrued interest. As of June 30, 2019 and December 31, 2018 , there were no loans that were delinquent more than 90 days and eligible to be repurchased out of GNMA loan pools. Derivative Assets and Liabilities : Interest Rate Swaps and Caps. The Company offers interest rate swaps and caps products to certain loan customers to allow them to hedge the risk of rising interest rates on their variable rate loans. The Company originates a variable rate loan and enters into a variable-to-fixed interest rate swap with the customer. The Company also enters into an offsetting swap with a correspondent bank. These back-to-back agreements are intended to offset each other and allow the Company to originate a variable rate loan, while providing a contract for fixed interest payments for the customer. The net cash flow for the Company is equal to the interest income received from a variable rate loan originated with the customer. The fair value of these derivatives is based on a discounted cash flow approach. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of interest rate swaps is classified as Level 2. At June 30, 2019 , derivative liabilities included interest rate swaps related to the pending Freddie Mac multifamily securitization in which we also plan to sell the associated mortgage servicing rights. Foreign Exchange Contracts. The Company offers short-term foreign exchange contracts to its customers to purchase and/or sell foreign currencies at set rates in the future. These products allow customers to hedge the foreign exchange rate risk of their deposits and loans denominated in foreign currencies. In conjunction with these products the Company also enters into offsetting contracts with institutional counterparties to hedge the Company’s foreign exchange rate risk. These back-to-back contracts allow the Company to offer its customers foreign exchange products while minimizing its exposure to foreign exchange rate fluctuations. The fair value of these instruments is determined at each reporting period based on the change in the foreign exchange rate. Given the short-term nature of the contracts, the counterparties’ credit risks are considered nominal and resulted in no adjustments to the valuation of the short-term foreign exchange contracts. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of these contracts is classified as Level 2. The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2019 Assets Securities available-for-sale: SBA loan pools securities $ 853 $ — $ 853 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 429,347 — 429,347 — Non-agency residential mortgage-backed securities 285 — 285 — Collateralized loan obligations 737,202 — 737,202 — Loans held-for-sale, carried at fair value 23,794 — 2,719 21,075 Derivative assets: Interest rate swaps and caps (1) 4,119 — 4,119 — Foreign exchange contracts (1) 30 — 30 — Liabilities Derivative liabilities: Interest rate swaps and caps (2) 14,041 — 14,041 — Foreign exchange contracts (2) 14 — 14 — December 31, 2018 Assets Securities available-for-sale: SBA loan pools securities $ 910 $ — $ 910 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 437,442 — 437,442 — Non-agency residential mortgage-backed securities 427 — 427 — Non-agency commercial mortgage-backed securities 132,199 — 132,199 — Collateralized loan obligations 1,421,522 — 1,421,522 — Loans held-for-sale, carried at fair value (3) 27,180 — 2,140 25,040 Derivative assets: Interest rate swaps and caps (1) 1,534 — 1,534 — Liabilities Derivative liabilities: Interest rate swaps and caps (2) 1,600 — 1,600 — (1) Included in Other Assets in the Consolidated Statements of Financial Condition. (2) Included in Accrued Expenses and Other Liabilities in the Consolidated Statements of Financial Condition. (3) Includes loans held-for-sale carried at fair value of $19.5 million ( $2.1 million at Level 2 and $17.4 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition. The following table presents a reconciliation of assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3), on a consolidated operations basis, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Loans repurchased from GNMA Loan Pools (1) Balance at beginning of period $ 23,069 $ 42,962 $ 25,040 $ 98,940 Total gains or losses (realized/unrealized): Included in earnings—fair value adjustment (6 ) (248 ) (3 ) (254 ) Additions — 2,765 — 27,385 Sales, settlements, and other (1,988 ) (12,245 ) (3,962 ) (92,837 ) Balance at end of period $ 21,075 $ 33,234 $ 21,075 $ 33,234 (1) Includes loans repurchased from GNMA Loan Pools of discontinued operations, which is included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition, of zero and $24.0 million , respectively, for the three months ended June 30, 2019 and 2018 and $17.3 million and $32.3 million for the six months ended June 30, 2019 and 2018 in balance at beginning of period, and zero and $20.9 million , respectively, for both the three and six months ended June 30, 2019 and 2018 in balance at end of period. The significant unobservable inputs used in the fair value measurement of the Company's loans repurchased from GNMA loan pools at June 30, 2019 and December 31, 2018 included an expected loss rate of 1.55 percent for insured loans and 20.00 percent for uninsured loans. There may be inherent weaknesses in any calculation technique, and changes in the underlying assumptions used, including discount rates and estimates of future cash flows, could significantly affect the results. Fair Value Option Loans Held-for-Sale, Carried at Fair Value: The Company elected the fair value option for certain SFR mortgage loans held-for-sale. Electing to measure SFR mortgage loans held-for-sale at fair value reduces certain timing differences and better matches changes in the value of these assets with changes in the value of derivatives used as economic hedges for these assets. The Company also elected to record loans repurchased from GNMA at fair value, as the Company intends to sell them after curing any defects and, accordingly, they are classified as held-for-sale. Loans previously sold to GNMA that are delinquent more than 90 days are subject to a repurchase option when that condition exists. These loans are re-recognized at fair value and offset by a secured borrowing, as the loans are still legally owned by GNMA. The following table presents the fair value and aggregate principal balance of certain assets, on a consolidated operations basis, under the fair value option: June 30, 2019 December 31, 2018 ($ in thousands) Fair Value Unpaid Principal Balance Difference Fair Value Unpaid Principal Balance Difference Loans held-for-sale, carried at fair value in continuing operations: Total loans $ 23,794 $ 24,495 $ (701 ) $ 7,690 $ 7,906 $ (216 ) Non-accrual loans (1) 6,594 6,685 (91 ) 2,427 2,538 (111 ) Loans held-for-sale, carried at fair value in discontinued operations: Total loans $ — $ — $ — $ 19,490 $ 20,027 $ (537 ) Non-accrual loans (2) — — — 8,430 8,496 (66 ) (1) Includes loans guaranteed by the U.S. government of $5.9 million and $1.6 million , respectively, at June 30, 2019 and December 31, 2018 . (2) Includes loans guaranteed by the U.S. government of zero and $7.6 million , respectively, at June 30, 2019 and December 31, 2018 . There were no loans held-for-sale that were 90 days or more past due and still accruing interest as of June 30, 2019 and December 31, 2018 . The assets accounted for under the fair value option are initially measured at fair value. Gains and losses from initial measurement and subsequent changes in fair value are recognized in earnings. The following table presents changes in fair value related to initial measurement and subsequent changes in fair value included in earnings for these assets measured at fair value for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Net gains (losses) from fair value changes Net gain (loss) on sale of loans (continuing operations) $ 59 $ 6 $ 60 $ (20 ) Net revenue on mortgage banking activities (discontinued operations) — (247 ) — (245 ) Changes in fair value due to instrument-specific credit risk were immaterial for the three and six months ended June 30, 2019 and 2018 . Interest income on loans held-for-sale under the fair value option is measured based on the contractual interest rate and reported in interest income on loans, including fees and income from discontinued operations in the consolidated statements of income. Assets and Liabilities Measured on a Non-Recurring Basis Impaired Loans: The fair value of impaired loans with specific allocations of the ALLL based on collateral is generally based on recent real estate appraisals and automated valuation models (AVMs). These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are typically deemed significant unobservable inputs used for determining fair value and result in a Level 3 classification. The following table presents the Company’s financial assets and liabilities measured at fair value on a non-recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2019 Assets Impaired loans: Commercial and industrial $ 486 $ — $ — $ 486 SBA 448 — — 448 December 31, 2018 Assets Impaired loans: SBA $ 226 — — $ 226 The following table presents the losses recognized on assets measured at fair value on a non-recurring basis for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Impaired loans: Single family residential mortgage $ — $ — $ (490 ) $ (115 ) Commercial and industrial — (231 ) — (292 ) SBA — — (46 ) (380 ) Other consumer — — (88 ) (141 ) Estimated Fair Values of Financial Instruments The following table presents the carrying amounts and estimated fair values of financial assets and liabilities, on a consolidated operations basis, as of the dates indicated: Carrying Amount Fair Value Measurement Level ($ in thousands) Level 1 Level 2 Level 3 Total June 30, 2019 Financial assets Cash and cash equivalents $ 313,850 $ 313,850 $ — $ — $ 313,850 Securities available-for-sale 1,167,687 — 1,167,687 — 1,167,687 Federal Home Loan Bank and other bank stock 76,373 — 76,373 — 76,373 Loans held-for-sale, carried at fair value 23,794 — 2,719 21,075 23,794 Loans held-for-sale, carried at lower of cost or fair value 573,926 — — 578,911 573,926 Loans receivable, net of ALLL 6,660,047 — — 6,550,673 6,550,673 Accrued interest receivable 31,908 31,908 — — 31,908 Derivative assets 4,149 — 4,149 — 4,149 Financial liabilities Deposits 6,292,290 — — 6,231,819 6,231,819 Advances from Federal Home Loan Bank 1,825,000 — 1,850,016 — 1,850,016 Long term debt 173,257 — 177,693 — 177,693 Derivative liabilities 14,055 — 14,055 — 14,055 Accrued interest payable 9,681 9,681 — — 9,681 December 31, 2018 Financial assets Cash and cash equivalents $ 391,592 $ 391,592 $ — $ — $ 391,592 Securities available-for-sale 1,992,500 — 1,992,500 — 1,992,500 Federal Home Loan Bank and other bank stock 68,094 — 68,094 — 68,094 Loans held-for-sale (1) 27,606 — 2,566 25,040 27,606 Loans receivable, net of allowance 7,638,681 — — 7,513,910 7,513,910 Accrued interest receivable 38,807 38,807 — — 38,807 Derivative assets 1,534 — 1,534 — 1,534 Financial liabilities Deposits 7,916,644 — — 7,689,324 7,689,324 Advances from Federal Home Loan Bank 1,520,000 — 1,517,761 — 1,517,761 Long-term debt 173,174 — 174,059 — 174,059 Derivative liabilities 1,600 — 1,600 — 1,600 Accrued interest payable 13,253 13,253 — — 13,253 (1) Includes loans held-for-sale carried at fair value of $19.5 million ( $2.1 million at Level 2 and $17.4 million at Level 3) of discontinued operations.

INVESTMENT SECURITIES

INVESTMENT SECURITIES	6 Months Ended
	Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract]
INVESTMENT SECURITIES	INVESTMENT SECURITIES The following table presents the amortized cost and fair value of the investment securities portfolio as of the dates indicated: ($ in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value June 30, 2019 Securities available-for-sale: SBA loan pool securities $ 831 $ 22 $ — $ 853 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 436,049 196 (6,898 ) 429,347 Non-agency residential mortgage-backed securities 275 10 — 285 Collateralized loan obligations 748,502 — (11,300 ) 737,202 Total securities available-for-sale $ 1,185,657 $ 228 $ (18,198 ) $ 1,167,687 December 31, 2018 Securities available-for-sale: SBA loan pool securities $ 911 $ — $ (1 ) $ 910 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 461,987 — (24,545 ) 437,442 Non-agency residential mortgage-backed securities 418 9 — 427 Non-agency commercial mortgage-backed securities 132,199 — — 132,199 Collateralized loan obligations 1,431,171 141 (9,790 ) 1,421,522 Total securities available-for-sale $ 2,026,686 $ 150 $ (34,336 ) $ 1,992,500 As of December 31, 2018 , the Company changed its intent and decided to sell its non-agency commercial mortgage-backed securities in an unrealized loss position due to its strategy to reposition its securities profile and recognized $3.3 million of other-than-temporary impairment (OTTI) losses during the fourth quarter of 2018. During the first quarter of 2019 , the Company completed the sale of all remaining non-agency commercial mortgage-backed securities totaling $132.2 million resulting in a gain of $9 thousand . Additionally, during the three and six months ended June 30, 2019 , the Company sold $279.2 million and $644.5 million , respectively, in collateralized loan obligations resulting in a gain of zero and $143 thousand , respectively. During the first quarter of 2018, the Company completed the sale of all remaining corporate debt securities, totaling $76.8 million resulting in a gain of $4.9 million , to reposition its securities available-for-sale portfolio. At June 30, 2019 , the Company's investment securities portfolio consisted of SBA loan pool securities, mortgage-backed securities, and collateralized loan obligations. The expected maturities of these types of securities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. At June 30, 2019 and December 31, 2018 , there were no holdings of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10 percent of the Company's stockholders’ equity. The following table presents proceeds from sales and calls of securities available-for-sale and the associated gross gains and losses realized through earnings upon the sales and calls of securities available-for-sale for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Gross realized gains on sales and calls of securities available-for-sale $ — $ 278 $ 208 $ 5,519 Gross realized losses on sales and calls of securities available-for-sale — — — — Net realized gains on sales and calls of securities available-for-sale $ — $ 278 $ 208 $ 5,519 Proceeds from sales and calls of securities available-for-sale $ 298,156 $ 325,439 $ 820,048 $ 612,956 Investment securities with carrying values of $106.3 million and $163.0 million as of June 30, 2019 and December 31, 2018 , respectively, were pledged to secure FHLB advances, public deposits and for other purposes as required or permitted by law. The following table summarizes the investment securities with unrealized losses by security type and length of time in a continuous unrealized loss position as of the dates indicated: Less Than 12 Months 12 Months or Longer Total ($ in thousands) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses June 30, 2019 Securities available-for-sale: SBA loan pool securities $ — $ — $ — $ — $ — $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities — — 370,676 (6,898 ) 370,676 (6,898 ) Non-agency residential mortgage-backed securities — — — — — — Collateralized loan obligations 497,963 (6,664 ) 239,239 (4,636 ) 737,202 (11,300 ) Total securities available-for-sale $ 497,963 $ (6,664 ) $ 609,915 $ (11,534 ) $ 1,107,878 $ (18,198 ) December 31, 2018 Securities available-for-sale: SBA loan pool securities $ — $ — $ 910 $ (1 ) $ 910 $ (1 ) U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 13,494 (133 ) 423,916 (24,412 ) 437,410 (24,545 ) Non-agency residential mortgage-backed securities 90 — 16 — 106 — Collateralized loan obligations 1,364,317 (9,480 ) 32,790 (310 ) 1,397,107 (9,790 ) Total securities available-for-sale $ 1,377,901 $ (9,613 ) $ 457,632 $ (24,723 ) $ 1,835,533 $ (34,336 ) The Company did not record OTTI for investment securities for the three and six months ended June 30, 2019 or 2018 . At June 30, 2019 , the Company’s securities available-for-sale portfolio consisted of 82 securities, 64 of which were in an unrealized loss position. At December 31, 2018 , the Company’s securities available-for-sale portfolio consisted of 145 securities, 118 of which were in an unrealized loss position. The Company monitors its securities portfolio to ensure it has adequate credit support. The majority of unrealized losses are related to the Company's mortgage-backed securities issued by U.S government sponsored entities and agencies. The Company also considers the lowest credit rating for identification of potential OTTI for other securities. As of June 30, 2019 , nearly all of the Company's non-agency mortgage-backed securities or collateralized loan obligations investment securities in an unrealized loss position received an investment grade credit rating. The decline in fair value is attributable to changes in interest rates, and not credit quality. The Company believes there was no OTTI as of June 30, 2019 The following table presents the composition and the repricing and yield information of the investment securities portfolio as of June 30, 2019 : One year or less More than One Year through Five Years More than Five Years through Ten Years More than Ten Years Total ($ in thousands) Fair Value Weighted-Average Yield Fair Value Weighted-Average Yield Fair Value Weighted-Average Yield Fair Value Weighted-Average Yield Fair Value Weighted-Average Yield Securities available-for-sale: SBA loan pool securities $ — — % $ — — % $ — — % $ 853 2.08 % $ 853 2.08 % U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 243 2.36 % 3,069 2.67 % — — % 426,035 2.74 % 429,347 2.74 % Non-agency residential mortgage-backed securities 66 3.23 % — — % — — % 219 5.74 % 285 5.16 % Collateralized loan obligations 737,202 3.71 % — — % — — % — — % 737,202 3.71 % Total securities available-for-sale $ 737,511 3.71 % $ 3,069 2.67 % $ — — % $ 427,107 2.74 % $ 1,167,687 3.35 %

LOANS AND ALLOWANCE FOR LOAN LO

LOANS AND ALLOWANCE FOR LOAN LOSSES	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
LOANS AND ALLOWANCE FOR LOAN LOSSES	LOANS AND ALLOWANCE FOR LOAN LOSSES The following table presents the balances in the Company’s loan portfolios as of the dates indicated: ($ in thousands) June 30, December 31, Commercial: Commercial and industrial $ 1,951,707 $ 1,944,142 Commercial real estate 856,497 867,013 Multifamily 1,598,978 2,241,246 SBA 80,929 68,741 Construction 209,029 203,976 Consumer: Single family residential mortgage 1,961,065 2,305,490 Other consumer 61,365 70,265 Total loans (1) $ 6,719,570 $ 7,700,873 Percentage to total loans 100.0 % 100.0 % Allowance for loan losses (59,523 ) (62,192 ) Loans receivable, net $ 6,660,047 $ 7,638,681 (1) Total loans include deferred loan origination costs/(fees) and premiums/(discounts), net of $16.1 million and $17.7 million , respectively, at June 30, 2019 and December 31, 2018 . Non-Traditional Mortgage Loans ("NTM") The following table presents the composition of the NTM portfolio as of the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) Count Amount Percent Count Amount Percent Consumer: Single family residential mortgage: Green Loans (HELOC) - first liens (1) 78 $ 61,439 8.2 % 88 $ 67,729 8.2 % Interest-only - first liens (2) 444 680,361 91.0 % 519 753,061 91.1 % Negative amortization (3) 10 3,219 0.4 % 11 3,528 0.4 % Total NTM - first liens 532 745,019 99.7 % 618 824,318 99.7 % Other consumer: Green Loans (HELOC) - second liens (1) 7 2,247 0.3 % 10 2,413 0.3 % Total NTM - second liens 7 2,247 0.3 % 10 2,413 0.3 % Total NTM loans 539 $ 747,266 100.0 % 628 $ 826,731 100.0 % Total loans receivable $ 6,719,570 $ 7,700,873 % of total NTM loans to total loans receivable 11.1 % 10.7 % Green Loans Green Loans are single family residential first and second mortgage lines of credit with a linked checking account that allows all types of deposits and withdrawals to be performed. These loans are generally interest only for a 15 -year term with a balloon payment due at maturity. At June 30, 2019 and December 31, 2018 , $286 thousand and $0 , respectively, of the Company's Green Loans were non-performing. As a result of their unique payment feature, Green Loans possess higher credit risk; however, management believes the risk is mitigated through the Company’s loan terms and underwriting standards, including its policies on LTV ratios and the Company’s contractual ability to curtail loans when the value of the underlying collateral declines. The Company discontinued origination of Green Loans in 2011. Interest Only Loans Interest only loans are primarily single family residential first mortgage loans with payment features that allow interest only payments in initial periods before converting to a fully amortizing loan. At June 30, 2019 and December 31, 2018 , interest only loans totaled $680.4 million and $753.1 million , respectively. At June 30, 2019 and December 31, 2018 , $827 thousand and $0 , respectively, of the interest only loans were non-performing. Loans with the Potential for Negative Amortization Negative amortization loans totaled $3.2 million and $3.5 million at June 30, 2019 and December 31, 2018 , respectively. The Company discontinued origination of negative amortization loans in 2007. At June 30, 2019 and December 31, 2018 , none of the loans with the potential for negative amortization were non-performing. These loans pose a potentially higher credit risk because of the lack of principal amortization and potential for negative amortization; however, management believes the credit risk associated with these loans is mitigated through the loan terms and underwriting standards, including the Company’s policies on LTV ratios. Allowance for Loan Losses The Company has established credit risk management processes that include regular management review of the loan portfolio to identify problem loans. During the ordinary course of business, management may become aware of borrowers and lessees who may not be able to fulfill the contractual payment requirements of the loan agreements. Such loans are subject to increased monitoring. Consideration is given to placing the loan or lease on non-accrual status, assessing the need for additional ALLL, and partial or full charge off the principal balance. The Company maintains the ALLL at a level that is considered adequate to cover the estimated incurred losses in the loan portfolio. The Company also maintains a separate reserve for unfunded loan commitments at a level that is considered adequate to cover the estimated incurred loss. The estimated funding of the loan commitments and credit risk factors are determined based on outstanding loans that share similar credit risk exposure are used to determine the adequacy of the reserve. At June 30, 2019 and December 31, 2018 , the reserve for unfunded loan commitments was $4.3 million and $4.6 million , respectively, which are included in Accrued Expenses and Other Liabilities on the Consolidated Statements of Financial Condition. The credit risk monitoring system is designed to identify impaired and potential problem loans, and to perform periodic evaluation of impairment and the adequacy of the allowance for credit losses in a timely manner. In addition, the Board of Directors of the Bank has adopted a credit policy that includes a credit review and control system that it believes should be effective in ensuring that the Company maintains an adequate allowance for loan losses. The Board of Directors also provides oversight and guidance for management’s allowance evaluation process. The following table presents a summary of activity in the ALLL for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Balance at beginning of period $ 63,885 $ 54,763 $ 62,192 $ 49,333 Loans charged off (2,451 ) (950 ) (3,514 ) (15,589 ) Recoveries of loans previously charged off 76 212 320 782 Net charge-offs (2,375 ) (738 ) (3,194 ) (14,807 ) (Reversal of) provision for loan losses (1,987 ) 2,653 525 22,152 Balance at end of period $ 59,523 $ 56,678 $ 59,523 $ 56,678 During the three months ended March 31, 2018, the Company recorded a charge-off of $13.9 million , which reflected the outstanding balance under a $15.0 million line of credit that was originated during the three months ended March 31, 2018. Subsequent to the granting of the line of credit, representations from the borrower in applying for the line of credit were determined by the Bank to be false, and third party bank account statements provided by the borrower to secure the line of credit were found to be fraudulent. The line of credit was granted after the borrower appeared to have satisfied a pre-condition that the line of credit be fully cash collateralized and secured by a bank account at a third party financial institution pledged to the Bank. As part of the Bank’s credit review and portfolio management process, the line of credit and disbursements were reviewed subsequent to closing and compliance with the borrower’s covenants was monitored. As part of this process, on March 9, 2018, the Bank received information that caused it to believe the existence of the pledged bank account had been misrepresented by the borrower and that the account had previously been closed. The Bank filed an action in Federal court pursuing the borrower and other parties. That action was voluntarily dismissed by the Bank without prejudice, and a substantially similar action was filed in Los Angeles County Superior Court. The Bank is also considering other available sources of collection and other potential means of mitigating the loss; however, no assurance can be given that it will be successful in this regard. Upon extensive review of the underwriting process for this loan, the Bank determined that this loan was the result of an isolated event of external fraud. The following table presents the activity and balance in the ALLL and the recorded investment, excluding accrued interest, in loans based on the impairment methodology as of or for the three and six months ended June 30, 2019 : ($ in thousands) Commercial and Industrial Commercial Real Estate Multifamily SBA Construction Lease Financing Single Family Residential Mortgage Other Consumer Total ALLL: Balance at March 31, 2019 $ 18,893 $ 6,838 $ 18,898 $ 3,057 $ 3,453 $ — $ 12,142 $ 604 $ 63,885 Charge-offs (2,022 ) — (6 ) 8 — — (425 ) (6 ) (2,451 ) Recoveries 11 — — 60 — 3 — 2 76 Net charge-offs (2,011 ) — (6 ) 68 — 3 (425 ) (4 ) (2,375 ) Provision (reversal) 4,647 39 (6,267 ) (5 ) 262 (3 ) (645 ) (15 ) (1,987 ) Balance at June 30, 2019 $ 21,529 $ 6,877 $ 12,625 $ 3,120 $ 3,715 $ — $ 11,072 $ 585 $ 59,523 Balance at December 31, 2018 $ 18,191 $ 6,674 $ 17,970 $ 1,827 $ 3,461 $ — $ 13,128 $ 941 $ 62,192 Charge-offs (2,115 ) — (6 ) (348 ) — — (951 ) (94 ) (3,514 ) Recoveries 44 — — 101 — 6 150 19 320 Net charge-offs (2,071 ) — (6 ) (247 ) — 6 (801 ) (75 ) (3,194 ) Provision 5,409 203 (5,339 ) 1,540 254 (6 ) (1,255 ) (281 ) 525 Balance at June 30, 2019 $ 21,529 $ 6,877 $ 12,625 $ 3,120 $ 3,715 $ — $ 11,072 $ 585 $ 59,523 Individually evaluated for impairment $ 1,239 $ — $ — $ 1,563 $ — $ — $ — $ 22 $ 2,824 Collectively evaluated for impairment 20,290 6,877 12,625 1,557 3,715 — 11,072 563 56,699 Total ending ALLL balance $ 21,529 $ 6,877 $ 12,625 $ 3,120 $ 3,715 $ — $ 11,072 $ 585 $ 59,523 Loans: Individually evaluated for impairment $ 20,429 $ — $ — $ 3,262 $ 2,519 $ — $ 21,021 $ 1,169 $ 48,400 Collectively evaluated for impairment 1,931,278 856,497 1,598,978 77,667 206,510 — 1,940,044 60,196 6,671,170 Total ending loan balances $ 1,951,707 $ 856,497 $ 1,598,978 $ 80,929 $ 209,029 $ — $ 1,961,065 $ 61,365 $ 6,719,570 The following table presents the activity and balance in the ALLL and the recorded investment, excluding accrued interest, in loans based on the impairment methodology as of or for the three and six months ended June 30, 2018 : ($ in thousands) Commercial and Industrial Commercial Real Estate Multifamily SBA Construction Lease Financing Single Family Residential Mortgage Other Consumer Total ALLL: Balance at March 31, 2018 $ 17,571 $ 5,417 $ 14,219 $ 1,577 $ 3,220 $ — $ 11,969 $ 790 $ 54,763 Charge-offs (276 ) — (8 ) (302 ) — — (364 ) — (950 ) Recoveries 36 — — 167 — 5 — 4 212 Net charge-offs (240 ) — (8 ) (135 ) — 5 (364 ) 4 (738 ) Provision (reversal) (467 ) 315 419 398 199 (5 ) 1,631 163 2,653 Balance at June 30, 2018 $ 16,864 $ 5,732 $ 14,630 $ 1,840 $ 3,419 $ — $ 13,236 $ 957 $ 56,678 Balance at December 31, 2017 $ 14,280 $ 4,971 $ 13,265 $ 1,701 $ 3,318 $ — $ 10,996 $ 802 $ 49,333 Charge-offs (347 ) — (8 ) (683 ) — — (479 ) (14,072 ) (15,589 ) Recoveries 97 — — 232 — 9 436 8 782 Net charge-offs (250 ) — (8 ) (451 ) — 9 (43 ) (14,064 ) (14,807 ) Provision 2,834 761 1,373 590 101 (9 ) 2,283 14,219 22,152 Balance at June 30, 2018 $ 16,864 $ 5,732 $ 14,630 $ 1,840 $ 3,419 $ — $ 13,236 $ 957 $ 56,678 Individually evaluated for impairment $ 595 $ — $ — $ 124 $ — $ — $ 461 $ 8 $ 1,188 Collectively evaluated for impairment 16,269 5,732 14,630 1,716 3,419 — 12,775 949 55,490 Total ending ALLL balance $ 16,864 $ 5,732 $ 14,630 $ 1,840 $ 3,419 $ — $ 13,236 $ 957 $ 56,678 Loans: Individually evaluated for impairment $ 5,829 $ — $ — $ 646 $ — $ — $ 20,140 $ 750 $ 27,365 Collectively evaluated for impairment 1,736,730 793,855 1,959,965 77,446 211,110 — 2,154,043 75,490 7,008,639 Total ending loan balances $ 1,742,559 $ 793,855 $ 1,959,965 $ 78,092 $ 211,110 $ — $ 2,174,183 $ 76,240 $ 7,036,004 The following table presents loans individually evaluated for impairment by class of loans as of the dates indicated. The recorded investment, excluding accrued interest, presents customer balances net of any partial charge-offs recognized on the loans and net of any deferred fees and costs and any purchase premium or discount. June 30, 2019 December 31, 2018 ($ in thousands) Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Unpaid Principal Balance Recorded Investment Allowance for Loan Losses With no related ALLL recorded: Commercial: Commercial and industrial $ 18,434 $ 18,404 $ — $ 5,491 $ 5,455 $ — Commercial real estate — — — — — — SBA 1,320 1,251 — 1,668 1,588 — Construction 2,519 2,519 — — — — Consumer: Single family residential mortgage 20,938 21,021 — 12,115 12,161 — Other consumer 1,167 1,147 — 469 469 — With an ALLL recorded: Commercial: Commercial and industrial 2,025 2,025 1,239 — — — SBA 2,107 2,011 1,563 823 788 562 Consumer: Single family residential mortgage — — — 5,993 6,032 161 Other consumer 22 22 22 468 452 106 Total $ 48,532 $ 48,400 $ 2,824 $ 27,027 $ 26,945 $ 829 The following table presents information on impaired loans, disaggregated by class, for the periods indicated: Three Months Ended Six Months Ended ($ in thousands) Average Recorded Investment Interest Income Recognized Cash Basis Interest Recognized Average Recorded Investment Interest Income Recognized Cash Basis Interest Recognized June 30, 2019 Commercial: Commercial and industrial $ 20,794 $ 255 $ 254 $ 12,921 $ 255 $ 254 Commercial real estate — — — 289 — — SBA 3,297 4 4 3,571 8 8 Construction 2,519 — — 2,519 — — Consumer: Single family residential mortgage 21,092 58 48 20,208 116 97 Other consumer 1,177 4 3 1,011 7 6 Total $ 48,879 $ 321 $ 309 $ 40,519 $ 386 $ 365 June 30, 2018 Commercial: Commercial and industrial $ 5,900 $ 1 $ 1 $ 5,616 $ 4 $ 4 SBA 654 — — 514 — — Consumer: Single family residential mortgage 20,274 58 47 19,994 115 96 Other consumer 760 3 3 755 6 5 Total $ 27,588 $ 62 $ 51 $ 26,879 $ 125 $ 105 Past Due Loans The following table presents the aging of the recorded investment in past due loans, excluding accrued interest receivable (which is not considered to be material), by class of loans as of dates indicated: ($ in thousands) 30 - 59 Days Past Due 60 - 89 Days Past Due Greater than 89 Days Past due Total Past Due Current Total June 30, 2019 NTM loans: Single family residential mortgage $ 19,960 $ — $ 827 $ 20,787 $ 724,232 $ 745,019 Other consumer — — — — 2,247 2,247 Total NTM loans 19,960 — 827 20,787 726,479 747,266 Traditional loans: Commercial: Commercial and industrial 1,063 997 4,017 6,077 1,945,630 1,951,707 Commercial real estate — — — — 856,497 856,497 Multifamily — — — — 1,598,978 1,598,978 SBA 944 73 2,672 3,689 77,240 80,929 Construction — — 2,519 2,519 206,510 209,029 Consumer: Single family residential mortgage 7,447 3,645 6,683 17,775 1,198,271 1,216,046 Other consumer 514 295 554 1,363 57,755 59,118 Total traditional loans 9,968 5,010 16,445 31,423 5,940,881 5,972,304 Total $ 29,928 $ 5,010 $ 17,272 $ 52,210 $ 6,667,360 $ 6,719,570 December 31, 2018 NTM loans: Single family residential mortgage $ 7,430 $ 617 $ — $ 8,047 $ 816,271 $ 824,318 Other consumer — — — — 2,413 2,413 Total NTM loans 7,430 617 — 8,047 818,684 826,731 Traditional loans: Commercial: Commercial and industrial 350 1,596 3,340 5,286 1,938,856 1,944,142 Commercial real estate — 582 — 582 866,431 867,013 Multifamily 356 — — 356 2,240,890 2,241,246 SBA 551 77 862 1,490 67,251 68,741 Construction — 939 — 939 203,037 203,976 Consumer: Single family residential mortgage 7,321 3,160 9,198 19,679 1,461,493 1,481,172 Other consumer 3,132 573 446 4,151 63,701 67,852 Total traditional loans 11,710 6,927 13,846 32,483 6,841,659 6,874,142 Total $ 19,140 $ 7,544 $ 13,846 $ 40,530 $ 7,660,343 $ 7,700,873 Non-accrual Loans The following table presents non-accrual loans as of the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) NTM Loans Traditional Loans Total NTM Loans Traditional Loans Total Non-accrual loans Commercial: Commercial and industrial $ — $ 5,716 $ 5,716 $ — $ 5,455 $ 5,455 Commercial real estate — — — — — — SBA — 3,440 3,440 — 2,574 2,574 Construction — 2,519 2,519 — — — Consumer: Single family residential mortgage 1,113 14,836 15,949 — 12,929 12,929 Other consumer — 875 875 — 627 627 Total non-accrual loans $ 1,113 $ 27,386 $ 28,499 $ — $ 21,585 $ 21,585 At June 30, 2019 and December 31, 2018 , $275 thousand and $470 thousand of loans were past due 90 days or more and still accruing. Loans in Process of Foreclosure At June 30, 2019 and December 31, 2018 , consumer mortgage loans of $8.8 million and $5.1 million , respectively, were secured by residential real estate properties for which formal foreclosure proceedings were in process according to local requirements of the applicable jurisdiction. Troubled Debt Restructurings A modification of a loan constitutes a troubled debt restructuring (TDR) when the Company, for economic or legal reasons related to a borrower’s financial difficulties, grants a concession to the borrower that it would not otherwise consider. The concessions may be granted in various forms, including reduction in the stated interest rate, reduction in the amount of principal amortization, forgiveness of a portion of the loan balance or accrued interest, or extension of the maturity date. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. This evaluation is performed under the Company’s internal underwriting policy. Troubled debt restructured loans consisted of the following as of the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) NTM Loans Traditional Loans Total NTM Loans Traditional Loans Total Commercial: Commercial and industrial $ — $ 16,250 $ 16,250 $ — $ 2,276 $ 2,276 SBA — 1,057 1,057 — 187 187 Consumer: Single family residential mortgage 2,653 2,419 5,072 2,668 2,596 5,264 Other consumer 294 — 294 294 — 294 Total $ 2,947 $ 19,726 $ 22,673 $ 2,962 $ 5,059 $ 8,021 The Company did not have any commitments to lend to customers with outstanding loans that were classified as TDRs as of June 30, 2019 or December 31, 2018 . Accruing TDRs were $20.2 million and non-accrual TDRs were $2.4 million at June 30, 2019 compared to accruing TDRs of $5.7 million and non-accrual TDRs of $2.3 million at December 31, 2018 . The following table summarizes the pre-modification and post-modification balances of the new TDRs for the periods indicated: Three Months Ended Six Months Ended ($ in thousands) Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment June 30, 2019 Commercial: Commercial and industrial 10 $ 17,339 $ 17,020 10 $ 17,339 $ 17,020 SBA 2 3,214 869 2 3,214 869 Consumer: Single family residential mortgage — — — — — — Other consumer — $ — $ — — $ — $ — Total 12 20,553 17,889 12 $ 20,553 $ 17,889 June 30, 2018 Commercial: Commercial and industrial — $ — $ — 2 $ 171 $ 163 Total — $ — $ — 2 $ 171 $ 163 The Company considers a TDR to be in payment default once it becomes 30 days or more past due following a modification. During the six months ended June 30, 2019 and 2018 , there were no loans that were modified as TDRs during the past 12 months that had subsequent payment defaults during the periods. The following table summarizes TDRs by modification type for the periods indicated: Three Months Ended Modification Type Change in Principal Payments and Interest Rates Change in Principal Payments Total ($ in thousands) Count Amount Count Amount Count Amount June 30, 2019 Commercial: Commercial and industrial 10 $ 17,020 — $ — 10 $ 17,020 SBA 2 $ 869 — $ — 2 $ 869 Total 12 $ 17,889 — $ — 12 $ 17,889 June 30, 2018 Total — $ — — $ — — $ — Six Months Ended Modification Type Change in Principal Payments and Interest Rates Change in Principal Payments Total ($ in thousands) Count Amount Count Amount Count Amount June 30, 2019 Commercial: Commercial and industrial 10 $ 17,020 — $ — 10 $ 17,020 SBA 2 $ 869 — $ — 2 $ 869 Total 12 $ 17,889 — $ — 12 $ 17,889 June 30, 2018 Commercial: Commercial and industrial — $ — 2 $ 163 2 $ 163 Total — $ — 2 $ 163 2 $ 163 Credit Quality Indicators The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company performs historical loss analysis that is combined with a comprehensive loan or lease to value analysis to analyze the associated risks in the current loan and lease portfolio. The Company analyzes loans individually by classifying the loans as to credit risk. This analysis includes all loans delinquent over 60 days and non-homogeneous loans such as commercial and commercial real estate loans. The Company uses the following definitions for risk ratings: Pass : Loans classified as pass are in compliance in all respects with the Bank’s credit policy and regulatory requirements, and do not exhibit any potential or defined weakness as defined under “Special Mention”, “Substandard” or “Doubtful”. Special Mention : Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or lease or of the Company’s credit position at some future date. Substandard : Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful : Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The following table presents the risk categories for total loans as of the dates indicated: ($ in thousands) Pass Special Mention Substandard Doubtful Total June 30, 2019 NTM loans: Single family residential mortgage $ 729,845 $ 12,751 $ 2,423 $ — $ 745,019 Other consumer 2,247 — — — 2,247 Total NTM loans 732,092 12,751 2,423 — 747,266 Traditional loans: Commercial: Commercial and industrial 1,844,472 50,702 56,533 — 1,951,707 Commercial real estate 832,173 14,519 9,805 — 856,497 Multifamily 1,581,629 11,488 5,861 — 1,598,978 SBA 66,448 4,074 9,605 802 80,929 Construction 194,842 9,172 5,015 — 209,029 Consumer: Single family residential mortgage 1,193,532 6,017 15,980 517 1,216,046 Other consumer 57,177 471 1,470 — 59,118 Total traditional loans 5,770,273 96,443 104,269 1,319 5,972,304 Total $ 6,502,365 $ 109,194 $ 106,692 $ 1,319 $ 6,719,570 December 31, 2018 NTM loans: Single family residential mortgage $ 811,056 $ 10,966 $ 2,296 $ — $ 824,318 Other consumer 2,413 — — — 2,413 Total NTM loans 813,469 10,966 2,296 — 826,731 Traditional loans: Commercial: Commercial and industrial 1,859,569 41,302 43,271 — 1,944,142 Commercial real estate 851,604 11,376 4,033 — 867,013 Multifamily 2,239,301 — 1,945 — 2,241,246 SBA 53,433 6,114 8,340 854 68,741 Construction 197,851 3,606 2,519 — 203,976 Consumer: Single family residential mortgage 1,461,721 2,602 16,849 — 1,481,172 Other consumer 66,228 979 645 — 67,852 Total traditional loans 6,729,707 65,979 77,602 854 6,874,142 Total $ 7,543,176 $ 76,945 $ 79,898 $ 854 $ 7,700,873 Purchases, Sales, and Transfers From time to time, the Company purchases and sells loans in the secondary market. Certain loans are transferred from held-for-investment to held-for-sale at the lower of cost or fair value and any reductions in value on transfer are reflected as write-downs to allowance for loan losses. The Company had no purchases of loans, excluding loans held-for-sale, for the three and six months ended June 30, 2019 and 2018 . The following table presents loans transferred from (to) loans held-for-sale by portfolio segment for the periods indicated: Three Months Ended Six Months Ended ($ in thousands) Transfers from Held-For-Sale Transfers (to) Held-For-Sale Transfers from Held-For-Sale Transfers (to) Held-For-Sale June 30, 2019 Commercial: Commercial real estate $ — $ (573 ) $ — $ (573 ) Multifamily — (752,087 ) — (752,087 ) Consumer: Single family residential mortgage $ — $ (131,315 ) $ — $ (374,679 ) Total $ — $ (883,975 ) $ — $ (1,127,339 ) June 30, 2018 Commercial: Multifamily $ — $ (71,449 ) $ — $ (71,449 ) Consumer: Single family residential mortgage — (133,829 ) — (136,013 ) Other consumer — — — (4,362 ) Total $ — $ (205,278 ) $ — $ (211,824 ) Included in transfers to loans held for sale is $573.9 million in multifamily loans from loans held-for-investment related to our pending Freddie Mac multifamily securitization which is expected to close during the third quarter of 2019. The loans included in the securitization have a weighted average coupon of 3.79% and a weighted average term to initial reset of 3.5 years . The related mortgage servicing rights will also be sold. In connection with the anticipated securitization, during the second quarter of 2019 , the Company entered into interest rate swap agreements with a combined notional value of $543.4 million to offset variability in fair value of the related loans as a result of changes in market interest rates. During the three months ended June 30, 2019 , the Company recognized a $9.6 million unrealized loss. The $9.6 million unrealized loss on these interest rate swaps was due to a decline in interest rates since their execution and is expected to be primarily offset by the anticipated gain in fair value of the loans sold into the securitization in the third quarter. Subsequent to June 30, 2019, this securitization was completed (refer to Note 20 — Subsequent Events for more information). During the three and six months ended June 30, 2019 , the Company sold $131.5 million and $374.7 million , respectively, in single family residential loans, resulting in a gain of $125 thousand and $1.8 million , respectively. During the three and six months ended June 30, 2019 , the Company sold $178.2 million and $178.2 million , respectively, in multifamily residential loans, resulting in a gain of $2.9 million and $2.9 million , respectively.

LEASES

LEASES	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
LEASES	LEASES The Company has operating leases for corporate offices, branches and loan production offices. The Company’s leases have remaining lease terms of one month to twenty years , some of which include options to extend the leases generally for periods of three years to five years . Our lease agreements do not contain any material residual value guarantees or material restrictive covenants . The components of lease expense were as follows: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2019 Operating Lease Expense $ 1,720 $ 3,496 Variable Lease Expense 89 178 Sublease Income (15 ) (250 ) Total Lease Expense $ 1,794 $ 3,424 Supplemental cash flow information related to leases was as follows: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2019 Cash paid for amounts included in the measurement of lease liabilities for operating leases: Operating cash flows $ 1,738 $ 3,619 ROU assets obtained in the exchange for lease liabilities: ROU assets obtained in exchange for lease liabilities $ 1,055 $ 4,089 ROU assets recognized upon adoption of new lease standard $ — $ 23,332 Supplemental balance sheet information related to leases was as follows: ($ in thousands) June 30, Operating Leases: Operating lease right-of-use assets $ 24,118 Operating lease liabilities 25,457 June 30, 2019 Weighted-average remaining lease term (in years): Operating leases 6.64 years Weighted-average discount rate: Operating leases 2.88 % Maturities of lease liabilities at June 30, 2019 were as follows: ($ in thousands) Operating Leases Remainder of 2019 $ 3,325 2020 6,590 2021 4,827 2022 3,250 2023 2,440 2024 1,568 Thereafter 6,338 Total lease payments 28,338 Less: present value discount (2,881 ) Total Lease Liability $ 25,457

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS, NET	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS, NET	GOODWILL AND OTHER INTANGIBLE ASSETS, NET At June 30, 2019 and December 31, 2018 , the Company had goodwill of $37.1 million . The Company evaluates goodwill impairment as of August 31 each year, and more frequently if events or circumstances indicate that there may be impairment. The Company completed its most recent annual goodwill impairment test (Step 0) as of August 31, 2018 and determined that no goodwill impairment existed. Core deposit intangibles are amortized over their useful lives ranging from four to ten years. As of June 30, 2019 , the weighted average remaining amortization period for core deposit intangibles was approximately 5.1 years . ($ in thousands) Gross Carrying Value Accumulated Amortization Net Carrying Value June 30, 2019 Core deposit intangibles $ 30,904 $ 25,799 $ 5,105 December 31, 2018 Core deposit intangibles $ 30,904 $ 24,558 $ 6,346 Aggregate amortization of intangible assets was $621 thousand and $827 thousand for the three months ended June 30, 2019 and 2018 , respectively and $1.2 million and $1.7 million for the six months ended June 30, 2019 and 2018 , respectively. The following table presents estimated future amortization expenses as of June 30, 2019 : ($ in thousands) Remainder of 2019 2020 2021 2022 2023 2024 and After Total Estimated future amortization expense $ 954 $ 1,518 $ 1,082 $ 799 $ 517 $ 235 $ 5,105

FEDERAL HOME LOAN BANK ADVANCES

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS	6 Months Ended
	Jun. 30, 2019
Banking and Thrift [Abstract]
FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS	FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS The following table presents the Company's advances from the FHLB as of the dates indicated: ($ in thousands) June 30, December 31, Fixed rate: Outstanding balance $ 1,180,000 $ 805,000 Interest rates ranging from 1.61 % 1.61 % Interest rates ranging to 3.32 % 3.32 % Weighted average interest rate 2.51 % 2.58 % Variable rate: Outstanding balance 645,000 715,000 Weighted average interest rate 2.52 % 2.56 % Each advance is payable at its maturity date. Advances paid early are subject to a prepayment penalty. At June 30, 2019 and December 31, 2018 , the Bank’s advances from the FHLB were collateralized by certain real estate loans with an aggregate unpaid principal balance of $3.71 billion and $4.05 billion , respectively. The Bank’s investment in capital stock of the FHLB of San Francisco totaled $49.3 million and $41.0 million at June 30, 2019 and December 31, 2018 , respectively. Based on this collateral and the Bank’s holdings of FHLB stock, the Bank was eligible to borrow an additional $942.6 million at June 30, 2019 . The Bank maintained a line of credit of $21.0 million from the Federal Reserve Discount Window, to which the Bank pledged securities with a carrying value of $28.3 million , with no outstanding borrowings at June 30, 2019 . The Bank maintained available unsecured federal funds lines with correspondent banks totaling $185.0 million , with no outstanding borrowings at June 30, 2019 . The Bank also maintained repurchase agreements and had no outstanding securities sold under agreements to repurchase at June 30, 2019 and December 31, 2018 . Availabilities and terms on repurchase agreements are subject to the counterparties' discretion and the pledging of additional investment securities. On February 14, 2019, the Company entered into a new line of credit for $15.0 million , which bears interest at LIBOR plus 2.00% and has a maturity date of February 13, 2020. At June 30, 2019 , total borrowings under the line of credit were $0 .

LONG-TERM DEBT

LONG-TERM DEBT	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT The following table presents the Company's long-term debt as of the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) Par Value Unamortized Debt Issuance Cost and Discount Par Value Unamortized Debt Issuance Cost and Discount 5.25% senior notes due April 15, 2025 $ 175,000 $ (1,743 ) $ 175,000 $ (1,826 ) Total $ 175,000 $ (1,743 ) $ 175,000 $ (1,826 ) Senior Notes On April 6, 2015, the Company completed the issuance and sale of $175.0 million aggregate principal amount of its 5.25 percent senior notes due April 15, 2025 (the Senior Notes). Net proceeds after discount were approximately $172.8 million . The Senior Notes are the Company’s senior unsecured debt obligations and rank equally with all of the Company’s other present and future unsecured unsubordinated obligations. The Company makes interest payments on the Senior Notes semi-annually in arrears. The Company may, at its option, on or after January 15, 2025 (i.e., 90 days prior to the maturity date of the Senior Notes), redeem the Senior Notes in whole at any time or in part from time to time, in each case on not less than 30 nor more than 60 days’ prior notice. The Senior Notes will be redeemable at a redemption price equal to 100 percent of the principal amount of the Senior Notes to be redeemed plus accrued and unpaid interest to the date of redemption. The Senior Notes were issued under the Senior Debt Securities Indenture, dated as of April 23, 2012 (the Base Indenture), as supplemented by the Second Supplemental Indenture dated as of April 6, 2015 (the Supplemental Indenture and together with the Base Indenture, the Indenture). The Indenture contains several covenants which, among other things, restrict the Company’s ability and the ability of the Company’s subsidiaries to dispose of or incur liens on the voting stock of certain subsidiaries and also contains customary events of default. The Company was in compliance with all covenants under the Indenture at June 30, 2019 .

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES For the three and six months ended June 30, 2019 income tax expense, on a consolidated operations basis, was $4.3 million and $7.0 million , respectively, and the effective tax rate was 20.6% and 22.9% , respectively. For the three and six months ended June 30, 2018 income tax expense (benefit), on a consolidated operations basis, was $2.1 million and $(3.7) million , respectively, and the effective tax rate was 12.6% and (18.6)% , respectively. The Company recognized higher income tax expense for the 2019 periods mainly due to the reduction in the recognition of year-to-date tax credits from the investments in alternative energy partnerships of $1.9 million and $9.2 million for the three and six months ended June 30, 2018 , respectively, compared to $1.7 million and $1.7 million , respectively, of tax credits recognized for the three and six months ended June 30, 2019 , respectively. The Company uses the flow-through income statement method to account for the investment tax credits earned on the solar investments. Under this method, investment tax credits are recognized as a reduction to income tax expense and the initial book-tax difference in the basis of the investments are recognized as additional tax expense in the year they are earned. The Company accounts for income taxes by recognizing deferred tax assets and liabilities based upon temporary differences between the amounts for financial reporting purposes and tax basis of its assets and liabilities. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion, or all, of the deferred tax asset will not be realized. In assessing the realization of deferred tax assets, management will continue to evaluate both positive and negative evidence on a quarterly basis, including the reversal of its taxable temporary differences, the existence of its historical earnings, the amounts of future projected earnings as well as the tax expiration periods of its income tax credits. Based on this analysis, management determined that it was more likely than not that all of the deferred tax assets would be realized; therefore, no valuation allowance was provided against the net deferred tax assets of $42.8 million and $49.4 million at June 30, 2019 and December 31, 2018 , respectively. The overall decrease in net deferred tax assets was primarily due to increases of $1.8 million in deferred tax liabilities resulting from year-to-date temporary book-tax differences and an increase of $4.8 million in deferred tax liabilities from the decrease of unrealized loss on securities available-for-sale. ASC 740-10-25 relates to the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements. ASC 740-10-25 prescribes a threshold and a measurement process for recognizing in the financial statements a tax position taken or expected to be taken in a tax return and also provides guidance on de-recognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. The Company had unrecognized tax benefits of $1.3 million and $1.2 million at June 30, 2019 and December 31, 2018 , respectively. The Company does not expect the total amount of unrecognized tax benefits to significantly change in the next twelve months. As of June 30, 2019 , the total unrecognized tax benefit that, if recognized, would impact the effective tax rate was $1.1 million . At June 30, 2019 and December 31, 2018 , the Company had no accrued interest or penalties. In the event the Company is assessed interest and/or penalties by federal or state tax authorities, such amounts will be classified in the consolidated financial statements as income tax expense. The Company and its subsidiaries are subject to U.S. Federal income tax as well as income tax in multiple state jurisdictions. The Company is no longer subject to the assessment of U.S. federal income tax for years before 2015. The statute of limitations for the assessment of California Franchise taxes has expired for tax years before 2014 (other state income and franchise tax statutes of limitations vary by state).

DERIVATIVE INSTRUMENTS

DERIVATIVE INSTRUMENTS	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE INSTRUMENTS	DERIVATIVE INSTRUMENTS The Company uses derivative instruments and other risk management techniques to reduce its exposure to adverse fluctuations in interest rates in accordance with its risk management policies. Interest Rate Swaps and Caps on Loans: The Company offers interest rate swap and cap products to certain loan customers to allow them to hedge the risk of rising interest rates on their variable rate loans. When such products are issued, the Company also enters into an offsetting swap with institutional counterparties to eliminate the interest rate risk. These back-to-back derivative agreements, which generate fee income for the Company, are intended to offset each other. The Company retains the credit risk of the original loan. The net cash flow for the Company is equal to the interest income received from a variable rate loan originated with the customer plus the fee. These swaps and caps are not designated as hedging instruments and are recorded at fair value in Other Assets and Accrued Expenses and Other Liabilities in the Consolidated Statements of Financial Condition. The changes in fair value are recorded in Other Income in the Consolidated Statements of Income. For the three and six months ended June 30, 2018 , changes in fair value recorded through Other Income in the Consolidated Statements of Income were immaterial. For the three and six months ended June 30, 2019 , other income also includes a $9.6 million unrealized loss on interest rate swaps related to the pending Freddie Mac multifamily securitization in which we planned to sell the associated mortgage servicing rights. The $9.6 million unrealized loss on these interest rate swaps was due to a decline in interest rates since their execution and is expected to be primarily offset by the anticipated gain in fair value of the loans sold into the securitization in the third quarter. Subsequent to June 30, 2019, this securitization was completed (refer to Note 20 — Subsequent Events for more information). Foreign Exchange Contracts: The Company offers short-term foreign exchange contracts to its customers to purchase and/or sell foreign currencies at set rates in the future. These products allow customers to hedge the foreign exchange rate risk of their deposits and loans denominated in foreign currencies. In conjunction with these products the Company also enters into offsetting contracts with institutional counterparties to hedge the Company’s foreign exchange rate risk. These back-to-back contracts allow the Company to offer its customers foreign exchange products while minimizing its exposure to foreign exchange rate fluctuations. These foreign exchange contracts are not designated as hedging instruments and are recorded at fair value in Other Assets and Accrued Expenses and Other Liabilities on the Consolidated Statements of Financial Condition. For the three and six months ended June 30, 2019 and 2018 , changes in fair value recorded through Other Income in the Consolidated Statements of Income were immaterial. The following table presents the notional amount and fair value of derivative instruments included in the Consolidated Statements of Financial Condition as of the dates indicated. June 30, 2019 December 31, 2018 ($ in thousands) Notional Amount Fair Value(1) Notional Amount Fair Value(1) Derivative assets: Interest rate swaps and caps on loans $ 130,121 $ 4,119 $ 103,812 $ 1,534 Foreign exchange contracts 1,209 30 — — Total $ 131,330 $ 4,149 $ 103,812 $ 1,534 Derivative liabilities: Interest rate swaps and caps on loans $ 673,514 $ 14,041 $ 103,812 1,600 Foreign exchange contracts 1,209 14 — — Total $ 674,723 $ 14,055 $ 103,812 $ 1,600 (1) The fair value of derivative assets and derivative liabilities are included in other assets and accrued expenses and other liabilities, respectively, in the accompanying consolidated balance sheets. The Company has entered into agreements with counterparty financial institutions, which include master netting agreements that provide for the net settlement of all contracts with a single counterparty in the event of default. However, the Company elected to account for all derivatives with counterparty institutions on a gross basis. Due to clearinghouse rule changes, variation margin payments are treated as settlements of derivative exposure rather than as collateral.

EMPLOYEE STOCK COMPENSATION

EMPLOYEE STOCK COMPENSATION	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
EMPLOYEE STOCK COMPENSATION	EMPLOYEE STOCK COMPENSATION On May 31, 2018 (the Effective Date), the Company's stockholders approved the Company's 2018 Omnibus Stock Incentive Plan (2018 Omnibus Plan). As of the Effective Date, the Company discontinued granting awards under the Company’s 2013 Omnibus Incentive Plan (2013 Omnibus Plan) or any prior equity incentive plans and future stock-based compensation awards to its directors and employees will be made pursuant to the 2018 Omnibus Plan. The 2018 Omnibus Plan provides that the maximum number of shares that will be available for awards is 4,417,882 , which represents the number of shares that were available for new awards under the 2013 Omnibus Plan immediately prior to the Effective Date. As of June 30, 2019 , 3,644,293 shares were available for future awards. Stock-based Compensation Expense The following table presents stock-based compensation expense and the related tax benefits for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Stock options $ (24 ) $ 80 $ (16 ) $ 113 Restricted stock awards and units 1,521 1,708 2,366 3,762 Total share-based compensation expense $ 1,497 $ 1,788 $ 2,350 $ 3,875 Related tax benefits $ 440 $ 524 $ 691 $ 1,136 The following table presents unrecognized stock-based compensation expense as of June 30, 2019 : ($ in thousands) Unrecognized Expense Weighted-Average Remaining Expected Recognition Period Stock option awards $ 11 1.0 year Restricted stock awards and restricted stock units 12,826 2.5 years Total $ 12,837 2.5 years Stock Options The Company has issued stock options to certain employees, officers and directors. Stock options are issued at the closing market price immediately before the grant date, and generally have a three to five year vesting period and contractual terms of seven to ten years. The Company recognizes an income tax deduction upon exercise of a stock option to the extent taxable income is recognized by the option holder. In the case of a non-qualified stock option, the option holder recognizes taxable income based on the fair market value of the shares acquired at the time of exercise less the exercise price. The following table represents stock option activity for the three months ended June 30, 2019 : Three Months Ended June 30, 2019 ($ in thousands except per share data) Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregated Intrinsic Value Outstanding at beginning of period 170,973 $ 13.56 5.5 years Exercised (1,836 ) $ 10.90 5.1 years Forfeited (33,616 ) $ 13.37 6.0 years Outstanding at end of period 135,521 $ 13.65 5.1 years $ 43 Exercisable at end of period 127,673 $ 13.67 5.0 years $ 38 The following table represents stock option activity for the six months ended June 30, 2019 : Six Months Ended June 30, 2019 ($ in thousands except per share data) Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregated Intrinsic Value Outstanding at beginning of period 186,973 $ 13.54 5.8 years Exercised (1,836 ) $ 10.90 5.1 years Forfeited (49,616 ) $ 13.34 6.1 years Outstanding at end of period 135,521 $ 13.65 5.1 years $ 43 Exercisable at end of period 127,673 $ 13.67 5.0 years $ 38 The following table sets forth information regarding unvested stock options for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Number of Shares Weighted-Average Exercise Price Per Share Number of Shares Weighted-Average Outstanding at beginning of period 47,848 $ 13.30 63,848 $ 13.30 Vested (12,000 ) $ 13.29 (12,000 ) $ 13.29 Forfeited (28,000 ) $ 13.29 (44,000 ) $ 13.29 Outstanding at end of period 7,848 $ 13.35 7,848 $ 13.35 Restricted Stock Awards and Restricted Stock Units The Company also has granted restricted stock awards and restricted stock units to certain employees, officers and directors. The restricted stock awards and units are valued at the closing price of the Company’s stock on the measurement date. The restricted stock awards and units fully vest after a specified period (generally ranging from one to five years ) of continued service from the date of grant plus, in some cases, the satisfaction of performance conditions. These performance targets include conditions relating to the Company’s profitability and regulatory standing. The actual amounts of stock released upon vesting will be determined by the Compensation Committee of the Company's Board of Directors upon the Committee's certification of the satisfaction of the target level of performance. The Company recognizes an income tax deduction in an amount equal to the taxable income reported by the holders of the restricted stock, generally upon vesting or, in the case of restricted stock units, when settled. The following table presents unvested restricted stock awards and restricted stock units activity for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Number of Shares Weighted Average Grant Date Fair Value Per Share Number of Shares Weighted Average Grant Date Fair Value Outstanding at beginning of period 848,644 $ 18.20 833,601 $ 19.02 Granted (1) 587,804 $ 14.23 723,398 $ 14.33 Vested (2) (201,816 ) $ 19.07 (215,257 ) $ 18.94 Forfeited (3) (127,778 ) $ 18.19 (234,888 ) $ 19.19 Outstanding at end of period 1,106,854 $ 15.93 1,106,854 $ 15.93 (1) There were 151,395 performance-based shares/units included in shares granted for the three and six months ended June 30, 2019 . (2) There were 37,572 performance-based shares/units included in vested shares for the three and six months ended June 30, 2019 . (3) The number of forfeited shares includes aggregate performance-based shares/units of 69,966 and 142,533 for the three and six months ended June 30, 2019 , respectively. Stock Appreciation Rights On August 21, 2012, the Company granted to it then-acting chief executive officer, Steven A. Sugarman, a ten-year stock appreciation right (SAR). The following table represents SARs activity and the weighted average exercise price per share as of and for the three months ended June 30, 2019 : Three Months Ended June 30, 2019 ($ in thousands except per share data) Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregated Intrinsic Value Outstanding at beginning of period 1,559,012 $ 11.60 3.4 years $ 3,488 Outstanding at end of period 1,559,012 $ 11.60 3.2 years $ 3,691 Exercisable at end of period 1,559,012 $ 11.60 3.2 years $ 3,691 The following table represents SARs activity and the weighted average exercise price per share as of and for the six months ended June 30, 2019 : Six Months Ended June 30, ($ in thousands except per share data) Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregated Intrinsic Value Outstanding at beginning of period 1,559,012 $ 11.60 3.6 years $ 2,662 Outstanding at end of period 1,559,012 $ 11.60 3.2 years $ 3,691 Exercisable at end of period 1,559,012 $ 11.60 3.2 years $ 3,691

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS’ EQUITY Warrants On November 1, 2010 , the Company issued warrants to COR Advisors LLC (COR Advisors), an entity controlled by Steven A. Sugarman, who became a director of the Company on that date and later became President and Chief Executive Officer of the Company (and resigned from those and all other positions with the Company and the Bank on January 23, 2017). The warrants entitled COR Advisors to purchase up to 1,395,000 shares of non-voting common stock at an exercise price of $11.00 per share, subject to certain adjustments to the number of shares underlying the warrants as well as certain adjustments to the warrant exercise price as applicable. On August 3, 2011, COR Advisors transferred warrants for the right to purchase 960,000 shares of non-voting common stock to COR Capital Holdings LLC (COR Capital Holdings), an entity controlled by Steven A. Sugarman, and transferred warrants for the right to purchase the remaining 435,000 shares of non-voting common stock to Jeffrey T. Seabold, the Company's then- (now former) Executive Vice President and Management Vice-Chair. On August 22, 2012, COR Capital Holdings transferred its warrants for the right to purchase 960,000 shares of non-voting common stock to a living trust for Steven A. Sugarman and his spouse. These warrants vested in tranches, with each tranche being exercisable for 5 years after the tranche's vesting date. With respect to the warrants transferred by COR Capital Holdings to the living trust for Steven A. Sugarman and his spouse, warrants to purchase 50,000 shares vested on October 1, 2011 and the remainder vested in seven equal quarterly installments beginning January 1, 2012 and ending on July 1, 2013. With respect to the warrants transferred by COR Advisors to Mr. Seabold, warrants to purchase 95,000 shares vested on January 1, 2011; warrants to acquire 130,000 shares vested on each of April 1 and July 1, 2011, and warrants to purchase 80,000 shares vested on October 1, 2011. On August 17, 2016, the living trust for Steven A. Sugarman and his spouse transferred warrants to purchase 480,000 shares to Steven A. Sugarman's brother, Jason Sugarman. These transferred warrants were last exercisable on September 30, 2016, December 31, 2016, March 31, 2017, June 30, 2017 and September 30, 2017 for 50,000 , 130,000 , 130,000 , 130,000 , and 40,000 shares, respectively. On August 17, 2016, Jason Sugarman irrevocably elected to fully exercise each tranche of the transferred warrants. Under his irrevocable election, Jason Sugarman directed that each such exercise would occur on the last exercisable date for each tranche using a cashless (net) exercise method and also directed that each exercise be for either non-voting common stock, or, if allowed under the terms of the warrant, for voting common stock. At September 30, 2016, December 31, 2016, March 31, 2017, June 30, 2017 and September 30, 2017, in accordance with Jason Sugarman’s irrevocable election, warrants to purchase 50,000 , 130,000 , 130,000 , 130,000 , and 40,000 shares, respectively, had been exercised, resulting in issuances of 25,051 and 64,962 shares of the Company's voting common stock and 75,875 , 77,376 and 23,237 shares of the Company's non-voting common stock, respectively. Based on automatic adjustments to the original $11.00 exercise price, the exercise price at the time of exercise was $8.80 , $8.72 , $8.66 , $8.61 and $8.55 per share, respectively. As a result of these exercises, Jason Sugarman no longer holds any warrants to purchase shares of the Company’s stock. During the three months ended June 30, 2018, based on additional documentation received from Jason Sugarman, it was determined that Jason Sugarman was eligible to receive voting common stock under the terms of the transferred warrant for the exercises that previously occurred on March 31, 2017, June 30, 2017 and September 30, 2017. Accordingly, on June 6, 2018, an aggregate of 176,488 shares of the Company's non-voting common stock owned by Jason Sugarman were canceled and he was issued 176,488 shares of the Company's voting common stock in lieu thereof. On August 16, 2016, the living trust for Steven A. Sugarman and his spouse irrevocably elected to exercise its warrants to purchase 480,000 shares. Under its irrevocable election, the living trust for Steven A. Sugarman and his spouse directed that each such exercise would occur on the last exercisable date for each tranche of such warrants (September 30, 2017, December 31, 2017, March 31, 2018 and June 30, 2018 with respect to 90,000 , 130,000 , 130,000 , and 130,000 shares, respectively) using a cashless net exercise method and also directed that each exercise be for non-voting common stock. On September 30, 2017, in accordance with its irrevocable election, warrants to purchase 90,000 shares were exercised by the living trust for Steven A. Sugarman and his spouse, resulting in the issuance of 52,284 shares of the Company's non-voting common stock. Based on an automatic adjustment to the original $11.00 exercise price, the exercise price at the time of exercise was $8.55 per share. On each of December 27, 2017, March 30, 2018 and June 29, 2018, the Company was notified that the living trust for Steven A. Sugarman and his spouse purportedly transferred warrants with respect to 130,000 shares, with a last exercisable date of December 31, 2017, 130,000 shares with a last exercisable date of March 31, 2018 and 130,000 shares with a last exercisable date of June 30, 2018, respectively, to a separate entity, Sugarman Family Partners. In accordance with the irrevocable election to exercise previously submitted by the living trust for Steven A. Sugarman and his spouse, the Company considered these transferred warrants to have been exercised with respect to 130,000 shares on December 31, 2017, 130,000 shares on March 31, 2018 and 130,000 shares on June 30, 2018, respectively, resulting in the issuance of 77,413 , 72,159 , and 73,543 shares of the Company's non-voting common stock, respectively, on December 31, 2017, April 2, 2018 and July 2, 2018, respectively. Based on an automatic adjustment to the original $11.00 exercise price, the exercise price at the time of exercise was $8.49 per share, $8.44 per share and $8.38 per share, respectively. As a result of these exercises, none of these warrants remain outstanding. On December 8, 2015, March 9, 2016, June 17, 2016, and September 30, 2016, Mr. Seabold exercised his warrants with respect to 95,000 , 130,000 , 130,000 , and 80,000 shares, respectively, using cashless (net) exercises, resulting in a net number of shares of non-voting common stock issued in the aggregate of 37,355 , 53,711 , 70,775 , and 40,081 , respectively. Based on automatic adjustments to the original $11.00 exercise price, the exercise price at the time of exercise was $9.04 , $8.90 , $8.84 , and $8.80 per share, respectively. As a result of these exercises, Mr. Seabold no longer holds any warrants to purchase shares of the Company's stock. Under the terms of the respective warrants, the warrants were exercisable for voting common stock in lieu of non-voting common stock following a transfer of the warrants under certain circumstances described in the terms of the warrants. The terms and issuance of the foregoing warrants were approved by the Company's stockholders at a special meeting held on October 25, 2010. Preferred Stock The Company is authorized to issue 50,000,000 shares of preferred stock with par value of $0.01 per share. Preferred shares outstanding rank senior to common shares both as to dividends and liquidation preference but generally have no voting rights. All of the Company's outstanding shares of preferred stock have a $1,000 per share liquidation preference. The following table presents the Company's total outstanding preferred stock as of dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) Shares Authorized and Outstanding Liquidation Preference Carrying Value Shares Authorized and Outstanding Liquidation Preference Carrying Value Series C 8.00% non-cumulative perpetual $ — $ — $ — $ — $ — $ — Series D 7.375% non-cumulative perpetual 115,000 115,000 110,873 115,000 115,000 110,873 Series E 7.00% non-cumulative perpetual 125,000 125,000 120,255 125,000 125,000 120,255 Total $ 240,000 $ 240,000 $ 231,128 $ 240,000 $ 240,000 $ 231,128 On September 17, 2018, the Company completed the redemption of all 40,250 outstanding shares of the Company's 8.00 percent Series C Non-Cumulative Perpetual Preferred Stock (Series C Preferred Stock), which resulted in the simultaneous redemption of all 1,610,000 of the outstanding related depositary shares (Series C Depository Shares), each representing a 1/40 th interest in a share of Series C Preferred Stock, at a redemption price of the liquidation amount of $1,000 per share of Series C Preferred Stock (equivalent to $25 per Series C Depository Share). The redemption price represented an aggregate amount of $40.3 million and did not accrue interest from and following the regularly scheduled dividend payment date of September 15, 2018. Deferred stock issuance costs of $2.3 million originally recorded as a reduction to preferred stock upon issuance of the Series C Preferred Stock were reclassified to retained earnings and resulted in a one-time, non-cash reduction to net income allocated to common stockholders. On July 25, 2019, the Company commenced a tender offer for the depositary shares representing shares of its Series D and Series E preferred stock for up to $75 million in aggregate purchase price. Subject to the terms and conditions described in the tender offer materials, the tender offer is expected to close by the end of August 2019. Change in Accumulated Other Comprehensive Income (Loss) The Company’s AOCI includes unrealized gain (loss) on securities available-for-sale. Changes to AOCI are presented net of tax effect as a component of stockholders' equity. Reclassifications from AOCI are recorded on the Consolidated Statements of Income either as a gain or loss. The following table presents changes to AOCI for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Unrealized gain (loss) on securities available-for-sale Balance at beginning of period $ (18,091 ) $ (11,542 ) $ (24,117 ) $ 5,227 Unrealized gain (loss) arising during the period 7,678 (10,796 ) 16,422 (30,478 ) Reclassification adjustment from other comprehensive income — (278 ) (208 ) (5,519 ) Tax effect of current period changes (2,255 ) 3,246 (4,765 ) 10,904 Total changes, net of taxes 5,423 (7,828 ) 11,449 (25,093 ) Reclassification of stranded tax effects to retained earnings — — — 496 Balance at end of period $ (12,668 ) $ (19,370 ) $ (12,668 ) $ (19,370 )

VARIABLE INTEREST ENTITIES

VARIABLE INTEREST ENTITIES	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
VARIABLE INTEREST ENTITIES	VARIABLE INTEREST ENTITIES T he Company holds ownership interests in alternative energy partnerships and qualified affordable housing partnerships. The Company evaluates its interests in these entities to determine whether they meet the definition of a variable interest entity (VIE) and whether the Company is required to consolidate these entities. A VIE is consolidated by its primary beneficiary, which is the party that has both (i) the power to direct the activities that most significantly impact the economic performance of the VIE and (ii) a variable interest that could potentially be significant to the VIE. To determine whether or not a variable interest the Company holds could potentially be significant to the VIE, the Company considers both qualitative and quantitative factors regarding the nature, size and form of the Company's involvement with the VIE. The Company has determined that its interests in these entities meet the definition of a variable interest. Unconsolidated VIEs Alternative Energy Partnerships The Company invests in certain alternative energy partnerships (limited liability companies) formed to provide sustainable energy projects that are designed to generate a return primarily through the realization of federal tax credits (energy tax credits). These entities were formed to invest in either newly installed residential rooftop solar leases and power purchase agreements or newly installed ground mount solar power purchase agreements. As a result of its investments, the Company has the right to certain investment tax credits and tax depreciation benefits (recognized on the flow through and income statement method in accordance with ASC 740), and to a lesser extent, cash flows generated from the installed solar systems leased to customers for a fixed period of time. While the Company's interest in the alternative energy partnerships meets the definition of a VIE in accordance with ASC 810, the Company has determined that the Company is not the primary beneficiary because the Company does not have the power to direct the activities that most significantly impact the economic performance of the entities including operational and credit risk management activities. As the Company is not the primary beneficiary, the Company did not consolidate the entities. The Company uses the Hypothetical Liquidation at Book Value (HLBV) method to account for these investments in energy tax credits as an equity investment under ASC 970-323-25-17. Under the HLBV method, an equity method investor determines its share of an investee's earnings by comparing its claim on the investee's book value at the beginning and end of the period, assuming the investee were to liquidate all assets at their U.S. GAAP amounts and distribute the resulting cash to creditors and investors under their respective priorities. The difference between the calculated liquidation distribution amounts at the beginning and the end of the reporting period, after adjusting for capital contributions and distributions, is the Company’s share of the earnings or losses from the equity investment for the period. To account for the tax credits earned on investments in alternative energy partnerships, the Company uses the flow-through income statement method. Under this method, the tax credits are recognized as a reduction to income tax expense and the initial book-tax differences in the basis of the investments are recognized as additional tax expense in the year they are earned. During the three and six months ended June 30, 2019 and 2018 , the Company funded $235 thousand for its alternative energy partnerships and did not receive any return of capital from its alternative energy partnerships. During the three months ended June 30, 2018 , the Company received a return of capital of $1.0 million and funded $13 thousand , respectively, from and into these partnerships. During the six months ended June 30, 2018, the Company received a return of capital of $1.0 million and funded $30.9 million , respectively, from and into these partnerships. During the three months ended June 30, 2019 and 2018 , the Company recognized a (gain) loss on investment of $(0.4) million and $1.8 million , respectively, through its HLBV application. During the six months ended June 30, 2019 and 2018 , the Company recognized a loss on investment of $1.6 million and $1.8 million , respectively, through its HLBV application. As a result, the balance of these investments was $26.6 million and $44.8 million at June 30, 2019 and 2018 , respectively. From an income tax benefit perspective, the Company recognized investment tax credits of $1.7 million and $1.9 million for the three months ended June 30, 2019 and 2018 , respectively, and $1.7 million and $9.2 million during the six months ended June 30, 2019 and 2018 , respectively, as well as income tax benefits (expense) relating to the recognition of its loss (gain) through its HLBV application during these periods. The following table represents the carrying value of the associated unconsolidated assets and liabilities and the associated maximum loss exposure for alternative energy partnerships as of the dates indicated: ($ in thousands) June 30, December 31, Cash $ 3,610 $ 3,012 Equipment, net of depreciation 252,888 259,464 Other assets 4,842 4,470 Total unconsolidated assets $ 261,340 $ 266,946 Total unconsolidated liabilities $ 6,166 $ 6,269 Maximum loss exposure $ 30,429 $ 28,988 The maximum loss exposure that would be absorbed by the Company in the event that all of the assets in alternative energy partnerships are deemed worthless is $30.4 million , which is the Company's recorded investment amount and remaining unfunded commitment at June 30, 2019 . The Company believes that the loss exposure on its investment is reduced considering that the return on its investment is provided not only by the cash flows of the underlying customer leases and power purchase agreements, but also through the significant tax benefits, including federal tax credits generated from the investments. In addition, the management arrangements include a transition manager to support any transition of the solar company sponsor whose role includes that of the servicer and operation and maintenance provider, in the event the sponsor would be required to be removed from its responsibilities (e.g., bankruptcy, breach of contract, etc.), thereby further limiting the Company’s exposure. Qualified Affordable Housing Partnerships The Company also invests in limited partnerships that operate qualified affordable housing projects. The returns on these investments are generated primarily through allocated Federal tax credits and other tax benefits. In addition, these investments contribute to the Company's compliance with the Community Reinvestment Act. These limited partnerships are considered to be VIEs, because either (i) they do not have sufficient equity investment at risk or (ii) the limited partners with equity at risk do not have substantive kick-out rights through voting rights or substantive participating rights over the general partner. As a limited partner, the Company is not the primary beneficiary because the general partner has the ability to direct the activities of the VIEs that most significantly impact their economic performance. Therefore, the Company does not consolidate these partnerships. At June 30, 2019 and December 31, 2018 , the Company had a total investment in qualified affordable housing projects of $18.8 million and $20.0 million , respectively. During the three and six months ended June 30, 2019 , the Company funded zero and $454 thousand , respectively, and recognized proportional amortization expense of $553 thousand and $1.2 million , respectively. The Company has funded $18.2 million of its $29.3 million aggregated funding commitments and had an unfunded commitment of $11.1 million at June 30, 2019 . During the three and six months ended June 30, 2018 , the Company funded $1.6 million and $1.6 million , respectively, into qualified affordable housing projects and recognized proportional amortization expense of $477 thousand and $974 thousand , respectively. From an income tax benefit perspective, the Company recognized investment tax credits of $554 thousand and $466 thousand , respectively, during the three months ended June 30, 2019 and 2018 and $1.1 million and $941 thousand for the six months ended June 30, 2019 and 2018 , respectively. At June 30, 2019 and December 31, 2018 , the maximum loss exposure that would be absorbed by the Company in the event that all of the assets in this investment are deemed worthless is $18.8 million and $20.0 million , respectively, which is the Company's recorded investment amount. The recorded investment amount is included in Other Assets in the Consolidated Statements of Financial Condition and the proportional amortization expense is recorded in Income Tax Expense (Benefit) in the Consolidated Statements of Income. As the investments in alternative energy partnerships and qualified affordable housing partnerships represent unconsolidated VIEs to the Company, the assets and liabilities of the investments themselves are not recorded on the Company's Statements of Financial Condition.

EARNINGS PER COMMON SHARE

EARNINGS PER COMMON SHARE	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
EARNINGS PER COMMON SHARE	EARNINGS PER COMMON SHARE The following table presents computations of basic and diluted earnings per common share for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 ($ in thousands except per share data) Common Stock Class B Common Stock Total Common Stock Class B Common Stock Total Income from continuing operations $ 16,426 $ 156 $ 16,582 $ 23,397 $ 222 $ 23,619 Less: income allocated to participating securities (268 ) (3 ) (271 ) (152 ) (1 ) (153 ) Less: participating securities dividends (93 ) (1 ) (94 ) (292 ) (3 ) (295 ) Less: preferred stock dividends (4,268 ) (40 ) (4,308 ) (8,535 ) (81 ) (8,616 ) Income from continuing operations allocated to common stockholders 11,797 112 11,909 14,418 137 14,555 Income from discontinued operations — — — — — — Net income allocated to common stockholders $ 11,797 $ 112 $ 11,909 $ 14,418 $ 137 $ 14,555 Weighted average common shares outstanding 50,379,816 477,321 50,857,137 50,290,107 477,321 50,767,428 Dilutive effects of stock units 103,677 — 103,677 119,967 — 119,967 Dilutive effects of stock options 4,142 — 4,142 7,795 — 7,795 Dilutive effects of warrants — — — — — — Average shares and dilutive common shares 50,487,635 477,321 50,964,956 50,417,869 477,321 50,895,190 Basic earnings per common share Income from continuing operations $ 0.23 $ 0.23 $ 0.23 $ 0.29 $ 0.29 $ 0.29 Income from discontinued operations — — — — — — Net income $ 0.23 $ 0.23 $ 0.23 $ 0.29 $ 0.29 $ 0.29 Diluted earnings per common share Income from continuing operations $ 0.23 $ 0.23 $ 0.23 $ 0.29 $ 0.29 $ 0.29 Income from discontinued operations — — — — — — Net income $ 0.23 $ 0.23 $ 0.23 $ 0.29 $ 0.29 $ 0.29 For the three and six months ended June 30, 2019 , there were 517,833 and 484,163 , respectively, of stock units and 58,859 and 33,013 , respectively, of stock options that were not considered in computing diluted earnings per common share, because they were anti-dilutive. The following table presents computations of basic and diluted EPS for the three and six months ended June 30, 2018 : Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 ($ in thousands except per share data) Common Stock Class B Common Stock Total Common Stock Class B Common Stock Total Income from continuing operations $ 13,709 $ 145 $ 13,854 $ 20,713 $ 215 $ 20,928 Less: income allocated to participating securities (85 ) (1 ) (86 ) — — — Less: participating securities dividends (201 ) (2 ) (203 ) (402 ) (4 ) (406 ) Less: preferred stock dividends (5,059 ) (54 ) (5,113 ) (10,121 ) (105 ) (10,226 ) Income from continuing operations allocated to common stockholders 8,364 88 8,452 10,190 106 10,296 Income from discontinued operations 916 10 926 2,385 25 2,410 Net income allocated to common stockholders $ 9,280 $ 98 $ 9,378 $ 12,575 $ 131 $ 12,706 Weighted average common shares outstanding 50,062,442 530,987 50,593,429 50,072,385 519,610 50,591,995 Dilutive effects of stock units 211,380 — 211,380 153,029 — 153,029 Dilutive effects of stock options 40,561 — 40,561 44,082 — 44,082 Dilutive effects of warrants 73,721 — 73,721 111,781 — 111,781 Average shares and dilutive common shares 50,388,104 530,987 50,919,091 50,381,277 519,610 50,900,887 Basic earnings per common share Income from continuing operations $ 0.17 $ 0.17 $ 0.17 $ 0.20 $ 0.20 $ 0.20 Income from discontinued operations 0.02 0.02 0.02 0.05 0.05 0.05 Net income $ 0.19 $ 0.19 $ 0.19 $ 0.25 $ 0.25 $ 0.25 Diluted earnings per common share Income from continuing operations $ 0.16 $ 0.17 $ 0.16 $ 0.20 $ 0.20 $ 0.20 Income from discontinued operations 0.02 0.02 0.02 0.05 0.05 0.05 Net income $ 0.18 $ 0.19 $ 0.18 $ 0.25 $ 0.25 $ 0.25 For the three and six months ended June 30, 2018 , there were 38,836 and 222,431 , respectively, of stock units and 0 and 0 , respectively of stock options that were not considered in computing diluted earnings per common share, because they were anti-dilutive.

LOAN COMMITMENTS AND OTHER RELA

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES	LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES Some financial instruments, such as loan commitments, credit lines, letters of credit, and overdraft protection, are issued to meet customer financing needs. These are agreements to provide credit or to support the credit of others, as long as conditions established in the contract are met, and usually have expiration dates. Commitments may expire without being used. Risk of credit loss exists up to the face amount of these instruments. The same credit policies are used to make such commitments as are used for loans, including obtaining collateral at exercise of the commitment. The contractual amount of financial instruments with off-balance-sheet risk was as follows for the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) Fixed Rate Variable Rate Fixed Rate Variable Rate Commitments to extend credit (1) $ 60 $ 247,435 $ 2,167 $ 288,770 Unused lines of credit 817 904,298 1,514 1,119,158 Letters of credit 1,847 8,402 1,266 8,561 (1) Included no commitments to extend credit related to discontinued operations at December 31, 2018 . Other Commitments During the three months ended March 31, 2017, the Bank entered into certain definitive agreements which grant the Bank the exclusive naming rights to the Banc of California Stadium, a soccer stadium of The Los Angeles Football Club (LAFC), as well as the right to be the official bank of LAFC. In exchange for the Bank’s rights as set forth in the agreements, the Bank agreed to pay LAFC $100.0 million over a period of 15 years , beginning in 2017 and ending in 2032. The advertising benefits of such rights are amortized on a straight-line basis and recorded as advertising and promotion expense beginning in 2018. During the three months ended June 30, 2019 and 2018 , advertising and promotion expense related to the LAFC commitment was $1.7 million . During the six months ended June 30, 2019 and 2018 , advertising and promotion expense related to the LAFC commitment was $3.3 million . As of June 30, 2019 , the Bank has paid $18.0 million of the $100.0 million commitment. The prepaid commitment balance, net of amortization, was $8.0 million as of June 30, 2019 , which was recognized as a prepaid asset and included in Other Assets in the Consolidated Statements of Financial Condition. See Note 18 for additional information. At June 30, 2019 , the Company had unfunded commitments of $11.1 million , $7.6 million , and $501 thousand for affordable housing fund investments, Small Business Investment Company (SBIC) investments, and other investments, respectively.

REVENUE RECOGNITION

REVENUE RECOGNITION	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
REVENUE RECOGNITION	REVENUE RECOGNITION The following presents noninterest (loss) income, segregated by revenue streams in-scope and out-of-scope of Topic 606 - Revenue From Contracts With Customers , for the periods indicated. Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Noninterest income In scope of Topic 606 Deposit service fees $ 575 $ 708 $ 1,242 $ 1,486 Debit card fees 178 177 291 402 Investment commissions 260 619 539 942 Other 109 — 216 155 Noninterest income (in-scope of Topic 606) 1,122 1,504 2,288 2,985 Noninterest (loss) income (out-of-scope of Topic 606) (3,412 ) 6,557 1,717 13,658 Total noninterest (loss) income $ (2,290 ) $ 8,061 $ 4,005 $ 16,643 The Company does not typically enter into long-term revenue contracts with customers. As of June 30, 2019 and December 31, 2018, the Company did not have any significant contract balances. As of June 30, 2019 , the Company did not capitalize any contract acquisition costs.

RELATED-PARTY TRANSACTIONS

RELATED-PARTY TRANSACTIONS	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
RELATED-PARTY TRANSACTIONS	RELATED-PARTY TRANSACTIONS General. Certain of our executive officers and directors, and their related interests, are customers of, or have had transactions with the Bank in the ordinary course of business, including deposits, loans and other financial services related transactions. From time to time, the Bank may make loans to executive officers and directors, and their related interests, in the ordinary course of business and on substantially the same terms and conditions, including interest rates and collateral, as those of comparable transactions with non-insiders prevailing at the time, in accordance with the Bank’s underwriting guidelines, and do not involve more than the normal risk of collectability or present other unfavorable features. As of the date of this filing, no related party loans were categorized as nonaccrual, past due, restructured or potential problem loans. The Bank also has an Employee Loan Program which is available to all employees and offers executive officers, directors and principal stockholders that meet the eligibility requirements the opportunity to participate on the same terms as employees generally, provided that any loan to an executive officer, director or principal stockholder must be approved by the Bank’s Board of Directors. The sole benefit provided under the Employee Loan Program is a reduction in loan fees. Transactions with Current Related Parties The Company and the Bank have engaged in transactions described below with the Company’s directors, executive officers, and beneficial owners of more than 5 percent of the outstanding shares of the Company’s voting common stock and certain persons related to them. Indemnification for Costs of Counsel in Connection with Special Committee Investigation, SEC Investigation and Related Matters. On November 3, 2016, in connection with an investigation by the Special Committee of the Company’s Board of Directors, the Company Board authorized and directed the Company to provide indemnification, advancement and/or reimbursement for the costs of separate independent counsel retained by any then-current officer or director, in their individual capacity, with respect to matters related to the investigation, and to advise them on their rights and obligations with respect to the investigation. At the direction of the Company Board, this indemnification, advancement and/or reimbursement is, to the extent applicable, subject to the indemnification agreement that each officer and director previously entered into with the Company, which includes an undertaking to repay any expenses advanced if it is ultimately determined that the officer or director was not entitled to indemnification under such agreements and applicable law. In addition, the Company is providing indemnification, advancement and/or reimbursement for costs related to (i) a formal order of investigation issued by the SEC on January 4, 2017 directed primarily at certain of the issues that the Special Committee reviewed and (ii) any related civil or administrative proceedings against the Company as well as officers currently or previously associated with the Company (collectively, the “Indemnity Matters”). During the three and six months ended June 30, 2019 , indemnification costs paid by the Company included $2 thousand and $149 thousand , respectively, incurred by the Company's General Counsel Emeritus John Grosvenor, who retired from that position effective April 15, 2019. Indemnification costs were paid on behalf of other executive officers and directors in lesser amounts for the three and six months ended June 30, 2019 . During the three and six months ended June 30, 2018 , indemnification costs paid by the Company included $233 thousand and $272 thousand , respectively, incurred by director Halle J. Benett; $233 thousand and $272 thousand , respectively, incurred by director Jonah F. Schnel; and $233 thousand and $272 thousand , respectively, incurred by director Robert Sznewajs. Indemnification costs were paid on behalf of other executive officers and directors in lesser amounts for the three and six months ended June 30, 2018 . Sabal Loan. On September 5, 2017, John A. Bogler became the Chief Financial Officer of the Company and the Bank. Mr. Bogler is a founding member, and since 2015 and up until his employment with the Company, was a board member and Chief Financial Officer, of Sabal Capital Partners, LLC and Sabal Investment Advisors, LLC. Sabal Capital Partners, LLC is the sole owner of Sabal Opportunities Fund I, LLC, which in turn is the sole owner of Sabal TL1, LLC; Sabal Investment Advisors, LLC is the investment manager of SIA Debt Opportunities Fund, LP. SDOF GP, LLC is the general partner of Sabal Investment Advisors, LLC (together, Sabal). As of September 1, 2018, Mr. Bogler had completely divested his ownership in Sabal, except for an investment in SDOF GP, LLC that represents only a right of Mr. Bogler to receive his pro-rata share of pass through distributions (net of expenses) by SIA Debt Opportunities Fund, LP with respect to underlying investments that were made by the fund. Effective June 26, 2015, the Bank provided a $35.0 million committed revolving repurchase facility, which was increased to $40.0 million effective June 11, 2017, to Sabal TL1, LLC, with a maximum funding amount of $100.0 million in certain situations. On June 6, 2018, the revolving repurchase facility was extended for 90 days beyond its original maturity date of June 10, 2018. The repurchase facility's outstanding balance was $3.5 million before it was completely paid off in August 2018. The extension was not renewed and expired on September 10, 2018. Under the Sabal repurchase facility, commercial mortgage loans originated by Sabal were purchased from Sabal by the Bank, together with a simultaneous agreement by Sabal to repurchase the commercial mortgage loans from the Bank at a future date. The advances under the Sabal repurchase facility were secured by commercial mortgage loans that had a market value in excess of the balance of the advances under the facility. During the year ended December 31, 2018 , the largest aggregate amount of principal outstanding under the Sabal repurchase facility was $32.5 million . The Sabal repurchase facility was paid off during the year ended December 31, 2018 . Interest on the outstanding balance under the Sabal repurchase facility accrued at the six month LIBOR rate plus a margin. $210.4 million in principal and $370 thousand in interest were paid by Sabal on the facility to the Bank during the year ended December 31, 2018. Transactions with Former Related Parties In addition to the transactions described above with the Company’s current directors, executive officers, and 5% or greater stockholders, and related persons, the Company and the Bank have engaged in transactions described below with the Company’s then (now former) directors and executive officers, and certain persons related to them. Indemnification for Costs of Counsel for Former Executive Officers and Former Directors in Connection with the Indemnity Matters. During the three and six months ended June 30, 2019 , indemnification costs paid by the Company in connection with the Indemnity Matters included $4.7 million and $6.9 million , respectively, incurred by the Company’s former Chair, President and Chief Executive Officer Steven A. Sugarman; and $186 thousand and $741 thousand , respectively, jointly incurred by the Company’s former Interim Chief Financial Officer and Chief Strategy Officer J. Francisco A. Turner and the Company’s former Chief Financial Officer James J. McKinney; and $139 thousand and $142 thousand , incurred by the Bank’s former director Cynthia Abercrombie. Indemnification costs were paid on behalf of other former executive officers and other former directors in lesser amounts e for the three and six months ended June 30, 2019 . During the three and six months ended June 30, 2018 , indemnification costs paid by the Company included $1.8 million and $2.0 million , respectively, incurred by the Company’s former Chair, President and Chief Executive Officer Steven A. Sugarman; $64 thousand and $135 thousand , respectively, incurred by the Bank’s former Management Vice Chair Jeffrey T. Seabold; and $173 thousand and $287 thousand , respectively, incurred by the Bank’s former director Cynthia Abercrombie; and $233 thousand and $272 thousand , respectively, incurred by the Company’s former director Jeffrey Karish. Indemnification costs were paid on behalf of other former executive officers and other former directors in lesser amounts for the three and six months ended June 30, 2018 . Settlement Agreement. On September 5, 2017, Jeffrey T. Seabold, the Bank’s former Management Vice Chair, submitted a notice of termination of employment pursuant to his employment agreement with the Bank and, that same day, filed a complaint in the Superior Court of the State of California, County of Los Angeles, against the Company and the Bank and multiple unnamed defendants asserting claims for breach of contract, wrongful termination, retaliation and unfair business practices. On January 19, 2018, the parties reached a settlement in principle through mediation and a final settlement agreement was entered into by the Company, the Bank and Mr. Seabold on February 14, 2018 (the "Settlement Agreement"). Under the Settlement Agreement, which provided for a mutual release of claims and the dismissal of Mr. Seabold’s complaint with prejudice, Mr. Seabold received lump sum cash payments from the Company and the Bank aggregating $4.3 million , less applicable withholdings for the portions of such payments representing employee compensation. Included within this amount were cash payments totaling $576 thousand representing a benefit with respect to Mr. Seabold's unvested stock options and restricted stock awards. Mr. Seabold also received a cash payment of $38 thousand as reimbursement for his premiums for health care coverage for the period October 1, 2017 through March 2019. In addition, in accordance with the Settlement Agreement the Bank paid $650 thousand of attorneys’ fees incurred by Mr. Seabold in connection with his lawsuit and the Settlement Agreement. All the cash payments to Mr. Seabold under the Settlement Agreement were made during the three months ended March 31, 2018. The Settlement Agreement contains certain standstill provisions that, prior to December 31, 2018, generally restricted Mr. Seabold and his affiliates from, among other things, acquiring beneficial ownership of any shares of the Company’s common stock or common stock equivalents to the extent this would result in Mr. Seabold beneficially owning in excess of 4.99 percent of the total number of shares of common stock outstanding, soliciting proxies in opposition to any matter not recommended by the Company’s Board of Directors or in favor of any matter not approved by the Company’s Board of Directors or initiating any stockholder proposal.

LITIGATION

LITIGATION	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
LITIGATION	LITIGATION From time to time we are involved as plaintiff or defendant in various legal actions arising in the normal course of business. In accordance with applicable accounting guidance, the Company establishes an accrued liability when those matters present loss contingencies that are both probable and estimable. The Company continues to monitor the matter for further developments that could affect the amount of the accrued liability that has been previously established. As of June 30, 2019 , the Company accrued $475 thousand for various litigation filed against the Company and the Bank. The Company was named as a defendant in several complaints filed in the United States District Court for the Central District of California in January 2017 alleging violations of sections 10(b) and 20(a) of the Securities Exchange Act of 1934. The complaints were brought as purported class actions on behalf of stockholders who purchased shares of the Company’s common stock between varying dates, inclusive of August 7, 2015 through January 23, 2017. Those actions were consolidated, a lead plaintiff was appointed, and the lead plaintiff filed a Consolidated Amended Complaint on May 31, 2017. The defendants moved to dismiss the Consolidated Amended Complaint. On September 18, 2017, the district court granted in part and denied in part Defendants’ motions to dismiss. Specifically, the court denied the defendants’ motions as to the Company’s April 15, 2016 Proxy Statement which listed the positions held by Steven A. Sugarman (the Company’s then (now former) Chairman, President and Chief Executive Officer) with COR Securities Holdings Inc., COR Clearing LLC, and COR Capital LLC while omitting their alleged connections with Jason Galanis. On May 31, 2018, the court certified a class of shareholders who purchased Company stock between April 15, 2016 and January 20, 2017. Trial is currently set for February 18, 2020. The Company believes that the action is without merit and intends to vigorously contest it.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	6 Months Ended
	Jun. 30, 2019
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS The Company evaluated events from the date of the consolidated financial statements on June 30, 2019 through the issuance of these consolidated financial statements included in this Quarterly Report on Form 10-Q. On July 25, 2019, the Company commenced a tender offer for the depositary shares representing shares of its Series D and Series E preferred stock for up to $75 million in aggregate purchase price. Subject to the terms and conditions described in the tender offer materials, the tender offer is expected to close by the end of August 2019.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation: The accompanying unaudited interim consolidated financial statements have been prepared pursuant to Article 10 of SEC Regulation S-X and other SEC rules and regulations for reporting on the Quarterly Report on Form 10-Q. Accordingly, certain disclosures required by U.S. generally accepted accounting principles (GAAP) are not included herein. These interim statements should be read in conjunction with the consolidated financial statements and notes included in the Annual Report on Form 10-K for the year ended December 31, 2018 filed by the Company with the SEC. The December 31, 2018 consolidated statements of financial condition presented herein has been derived from the audited financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2018 filed with the SEC, but does not include all of the disclosures required by GAAP for complete financial statements.
Reclassification	In the opinion of management of the Company, the accompanying unaudited interim consolidated financial statements reflect all of the adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the consolidated financial condition and consolidated results of operations as of the dates and for the periods presented.
Principles of Consolidation	Principles of Consolidation: The accompanying unaudited consolidated financial statements include the accounts of the Company and its consolidated subsidiaries as of June 30, 2019 and December 31, 2018 and for the three and six months ended June 30, 2019 and 2018 . Significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, all references to the Company include its then wholly owned subsidiaries.
Accounting Pronouncements	Adopted Accounting Pronouncements: During the six months ended June 30, 2019 , the following pronouncements applicable to the Company were adopted: In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (ASU) 2016-02 Topic 842, “Leases” which increases transparency and comparability among organizations by requiring the recognition of right of use (ROU) assets and lease liabilities on the balance sheet. Most prominent among the changes in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases. Under the standard, disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Company adopted Topic 842 and related updates effective January 1, 2019 and used the effective date as the date of initial application, and therefore, periods prior to January 1, 2019 were not restated. The Company elected the package of practical expedients, which permits us not to reassess prior conclusions about lease identifications, lease classification and initial direct costs under the new standard. The Company did not elect to apply the hindsight practical expedient pertaining to using hindsight knowledge as of the effective date when determining lease terms and impairment. The Company also has elected the short-term lease recognition exemption (leases with terms 12 months or less) for all leases that qualify, and thus will not recognize ROU assets or lease liabilities for those leases. In addition, the Company elected the practical expedient to not separate lease and non-lease components for all of our leases. Upon adoption, the Company recognized on its consolidated balance sheet ROU assets of approximately $23.3 million (inclusive of an adjustment to remove the Company's existing deferred rent liability of approximately $1.4 million ) with a corresponding operating lease liability of approximately $24.7 million . The standard did not have an impact on our consolidated statements of income. In addition, the Company's accounting for finance leases remained substantially unchanged. Significant Accounting Policies: The accounting and reporting policies of the Company are based upon GAAP and conform to predominant practices within the banking industry. The Company has not made any significant changes in its critical accounting policies from those disclosed in its Annual Report on Form 10-K for the year ended December 31, 2018 filed with the SEC, except for the accounting for leases as described below. Leases. The Company determines if an arrangement is a lease at inception. The Company’s operating lease agreements are primarily for real estate space and are included within right of use (ROU) assets and lease liabilities on the June 30, 2019 consolidated balance sheet. The ROU asset is based on the operating lease liabilities adjusted for any prepaid or deferred rent. The Company has elected not to recognize on its consolidated balance sheet leases with terms of one-year or less. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, the Company uses its incremental borrowing rate, which is the rate incurred to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment, at lease commencement date in determining the present value of lease payments. Many of the Company’s lessee agreements include options to extend the lease, which the Company does not include in its minimum lease terms unless they are reasonably certain to be exercised. The Company elected the practical expedient to combine its lease and related nonlease components for the Company’s building leases. Rental expense for lease payments related to operating leases is recognized on a straight-line basis over the lease term
Use of Estimates in the Preparation of Financial Statements	Use of Estimates in the Preparation of Financial Statements: The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and disclosures provided, and actual results could differ. The allowance for loan losses (ALLL), reserve for loss on repurchased loans, reserve for unfunded loan commitments, realization of deferred tax assets, the valuation of goodwill and other intangible assets, mortgage banking and other derivatives, Hypothetical Liquidation at Book Value (HLBV) of investments in alternative energy partnerships, and the fair value measurement of financial instruments are particularly subject to change and such change could have a material effect on the consolidated financial statements.
Discontinued Operations	Discontinued Operations: During the three months ended March 31, 2017, the Company completed the sale of its Banc Home Loans division, which largely represented the Company's Mortgage Banking segment. In accordance with Accounting Standards Codification (ASC) 205-20, the Company determined that the sale of the Banc Home Loans division and certain other mortgage banking related assets and liabilities that would be sold or settled separately within one year met the criteria to be classified as a discontinued operation and the related operating results and financial condition have been presented as discontinued operations on the consolidated financial statements. See Note 2 for additional information. Unless otherwise indicated, information included in these notes to the consolidated financial statements is presented on a consolidated operations basis, which includes results from both continuing and discontinued operations, as of December 31, 2018 and for the three and six months ended June 30, 2018
Restructuring Expense	Restructuring Expense: During the three and six months ended June 30, 2019

FAIR VALUES OF FINANCIAL INST_2

FAIR VALUES OF FINANCIAL INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Assets Measured on a Recurring Basis	The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2019 Assets Securities available-for-sale: SBA loan pools securities $ 853 $ — $ 853 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 429,347 — 429,347 — Non-agency residential mortgage-backed securities 285 — 285 — Collateralized loan obligations 737,202 — 737,202 — Loans held-for-sale, carried at fair value 23,794 — 2,719 21,075 Derivative assets: Interest rate swaps and caps (1) 4,119 — 4,119 — Foreign exchange contracts (1) 30 — 30 — Liabilities Derivative liabilities: Interest rate swaps and caps (2) 14,041 — 14,041 — Foreign exchange contracts (2) 14 — 14 — December 31, 2018 Assets Securities available-for-sale: SBA loan pools securities $ 910 $ — $ 910 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 437,442 — 437,442 — Non-agency residential mortgage-backed securities 427 — 427 — Non-agency commercial mortgage-backed securities 132,199 — 132,199 — Collateralized loan obligations 1,421,522 — 1,421,522 — Loans held-for-sale, carried at fair value (3) 27,180 — 2,140 25,040 Derivative assets: Interest rate swaps and caps (1) 1,534 — 1,534 — Liabilities Derivative liabilities: Interest rate swaps and caps (2) 1,600 — 1,600 — (1) Included in Other Assets in the Consolidated Statements of Financial Condition. (2) Included in Accrued Expenses and Other Liabilities in the Consolidated Statements of Financial Condition. (3) Includes loans held-for-sale carried at fair value of $19.5 million ( $2.1 million at Level 2 and $17.4 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition.
Fair Value Liabilities Measured on a Recurring Basis	The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2019 Assets Securities available-for-sale: SBA loan pools securities $ 853 $ — $ 853 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 429,347 — 429,347 — Non-agency residential mortgage-backed securities 285 — 285 — Collateralized loan obligations 737,202 — 737,202 — Loans held-for-sale, carried at fair value 23,794 — 2,719 21,075 Derivative assets: Interest rate swaps and caps (1) 4,119 — 4,119 — Foreign exchange contracts (1) 30 — 30 — Liabilities Derivative liabilities: Interest rate swaps and caps (2) 14,041 — 14,041 — Foreign exchange contracts (2) 14 — 14 — December 31, 2018 Assets Securities available-for-sale: SBA loan pools securities $ 910 $ — $ 910 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 437,442 — 437,442 — Non-agency residential mortgage-backed securities 427 — 427 — Non-agency commercial mortgage-backed securities 132,199 — 132,199 — Collateralized loan obligations 1,421,522 — 1,421,522 — Loans held-for-sale, carried at fair value (3) 27,180 — 2,140 25,040 Derivative assets: Interest rate swaps and caps (1) 1,534 — 1,534 — Liabilities Derivative liabilities: Interest rate swaps and caps (2) 1,600 — 1,600 — (1) Included in Other Assets in the Consolidated Statements of Financial Condition. (2) Included in Accrued Expenses and Other Liabilities in the Consolidated Statements of Financial Condition. (3) Includes loans held-for-sale carried at fair value of $19.5 million ( $2.1 million at Level 2 and $17.4 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition.
Reconciliation of Assets Measured at Fair Value on Recurring Basis	The following table presents a reconciliation of assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3), on a consolidated operations basis, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Loans repurchased from GNMA Loan Pools (1) Balance at beginning of period $ 23,069 $ 42,962 $ 25,040 $ 98,940 Total gains or losses (realized/unrealized): Included in earnings—fair value adjustment (6 ) (248 ) (3 ) (254 ) Additions — 2,765 — 27,385 Sales, settlements, and other (1,988 ) (12,245 ) (3,962 ) (92,837 ) Balance at end of period $ 21,075 $ 33,234 $ 21,075 $ 33,234 (1) Includes loans repurchased from GNMA Loan Pools of discontinued operations, which is included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition, of zero and $24.0 million , respectively, for the three months ended June 30, 2019 and 2018 and $17.3 million and $32.3 million for the six months ended June 30, 2019 and 2018 in balance at beginning of period, and zero and $20.9 million , respectively, for both the three and six months ended June 30, 2019 and 2018 in balance at end of period.
Fair value option of certain assets	The following table presents the fair value and aggregate principal balance of certain assets, on a consolidated operations basis, under the fair value option: June 30, 2019 December 31, 2018 ($ in thousands) Fair Value Unpaid Principal Balance Difference Fair Value Unpaid Principal Balance Difference Loans held-for-sale, carried at fair value in continuing operations: Total loans $ 23,794 $ 24,495 $ (701 ) $ 7,690 $ 7,906 $ (216 ) Non-accrual loans (1) 6,594 6,685 (91 ) 2,427 2,538 (111 ) Loans held-for-sale, carried at fair value in discontinued operations: Total loans $ — $ — $ — $ 19,490 $ 20,027 $ (537 ) Non-accrual loans (2) — — — 8,430 8,496 (66 ) (1) Includes loans guaranteed by the U.S. government of $5.9 million and $1.6 million , respectively, at June 30, 2019 and December 31, 2018 . (2) Includes loans guaranteed by the U.S. government of zero and $7.6 million , respectively, at June 30, 2019 and December 31, 2018 . Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Net gains (losses) from fair value changes Net gain (loss) on sale of loans (continuing operations) $ 59 $ 6 $ 60 $ (20 ) Net revenue on mortgage banking activities (discontinued operations) — (247 ) — (245 )
Schedule of Assets and Liabilities Measured on Non-recurring Basis	The following table presents the Company’s financial assets and liabilities measured at fair value on a non-recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2019 Assets Impaired loans: Commercial and industrial $ 486 $ — $ — $ 486 SBA 448 — — 448 December 31, 2018 Assets Impaired loans: SBA $ 226 — — $ 226
Schedule of Gains and (Losses) Recognized on Assets Measured at Fair Value on Non-recurring Basis	The following table presents the losses recognized on assets measured at fair value on a non-recurring basis for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Impaired loans: Single family residential mortgage $ — $ — $ (490 ) $ (115 ) Commercial and industrial — (231 ) — (292 ) SBA — — (46 ) (380 ) Other consumer — — (88 ) (141 )
Carrying Amounts and Estimated Fair Values of Financial Instruments	nts The following table presents the carrying amounts and estimated fair values of financial assets and liabilities, on a consolidated operations basis, as of the dates indicated: Carrying Amount Fair Value Measurement Level ($ in thousands) Level 1 Level 2 Level 3 Total June 30, 2019 Financial assets Cash and cash equivalents $ 313,850 $ 313,850 $ — $ — $ 313,850 Securities available-for-sale 1,167,687 — 1,167,687 — 1,167,687 Federal Home Loan Bank and other bank stock 76,373 — 76,373 — 76,373 Loans held-for-sale, carried at fair value 23,794 — 2,719 21,075 23,794 Loans held-for-sale, carried at lower of cost or fair value 573,926 — — 578,911 573,926 Loans receivable, net of ALLL 6,660,047 — — 6,550,673 6,550,673 Accrued interest receivable 31,908 31,908 — — 31,908 Derivative assets 4,149 — 4,149 — 4,149 Financial liabilities Deposits 6,292,290 — — 6,231,819 6,231,819 Advances from Federal Home Loan Bank 1,825,000 — 1,850,016 — 1,850,016 Long term debt 173,257 — 177,693 — 177,693 Derivative liabilities 14,055 — 14,055 — 14,055 Accrued interest payable 9,681 9,681 — — 9,681 December 31, 2018 Financial assets Cash and cash equivalents $ 391,592 $ 391,592 $ — $ — $ 391,592 Securities available-for-sale 1,992,500 — 1,992,500 — 1,992,500 Federal Home Loan Bank and other bank stock 68,094 — 68,094 — 68,094 Loans held-for-sale (1) 27,606 — 2,566 25,040 27,606 Loans receivable, net of allowance 7,638,681 — — 7,513,910 7,513,910 Accrued interest receivable 38,807 38,807 — — 38,807 Derivative assets 1,534 — 1,534 — 1,534 Financial liabilities Deposits 7,916,644 — — 7,689,324 7,689,324 Advances from Federal Home Loan Bank 1,520,000 — 1,517,761 — 1,517,761 Long-term debt 173,174 — 174,059 — 174,059 Derivative liabilities 1,600 — 1,600 — 1,600 Accrued interest payable 13,253 13,253 — — 13,253 (1) Includes loans held-for-sale carried at fair value of $19.5 million ( $2.1 million at Level 2 and $17.4 million at Level 3) of discontinued operations.

INVESTMENT SECURITIES (Tables)

INVESTMENT SECURITIES (Tables)	6 Months Ended
	Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Cost and Fair Value of Available-for-Sale Investment Securities	The following table presents the amortized cost and fair value of the investment securities portfolio as of the dates indicated: ($ in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value June 30, 2019 Securities available-for-sale: SBA loan pool securities $ 831 $ 22 $ — $ 853 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 436,049 196 (6,898 ) 429,347 Non-agency residential mortgage-backed securities 275 10 — 285 Collateralized loan obligations 748,502 — (11,300 ) 737,202 Total securities available-for-sale $ 1,185,657 $ 228 $ (18,198 ) $ 1,167,687 December 31, 2018 Securities available-for-sale: SBA loan pool securities $ 911 $ — $ (1 ) $ 910 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 461,987 — (24,545 ) 437,442 Non-agency residential mortgage-backed securities 418 9 — 427 Non-agency commercial mortgage-backed securities 132,199 — — 132,199 Collateralized loan obligations 1,431,171 141 (9,790 ) 1,421,522 Total securities available-for-sale $ 2,026,686 $ 150 $ (34,336 ) $ 1,992,500
Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses	The following table presents proceeds from sales and calls of securities available-for-sale and the associated gross gains and losses realized through earnings upon the sales and calls of securities available-for-sale for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Gross realized gains on sales and calls of securities available-for-sale $ — $ 278 $ 208 $ 5,519 Gross realized losses on sales and calls of securities available-for-sale — — — — Net realized gains on sales and calls of securities available-for-sale $ — $ 278 $ 208 $ 5,519 Proceeds from sales and calls of securities available-for-sale $ 298,156 $ 325,439 $ 820,048 $ 612,956
Summary of Investment Securities with Unrealized Losses	The following table summarizes the investment securities with unrealized losses by security type and length of time in a continuous unrealized loss position as of the dates indicated: Less Than 12 Months 12 Months or Longer Total ($ in thousands) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses June 30, 2019 Securities available-for-sale: SBA loan pool securities $ — $ — $ — $ — $ — $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities — — 370,676 (6,898 ) 370,676 (6,898 ) Non-agency residential mortgage-backed securities — — — — — — Collateralized loan obligations 497,963 (6,664 ) 239,239 (4,636 ) 737,202 (11,300 ) Total securities available-for-sale $ 497,963 $ (6,664 ) $ 609,915 $ (11,534 ) $ 1,107,878 $ (18,198 ) December 31, 2018 Securities available-for-sale: SBA loan pool securities $ — $ — $ 910 $ (1 ) $ 910 $ (1 ) U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 13,494 (133 ) 423,916 (24,412 ) 437,410 (24,545 ) Non-agency residential mortgage-backed securities 90 — 16 — 106 — Collateralized loan obligations 1,364,317 (9,480 ) 32,790 (310 ) 1,397,107 (9,790 ) Total securities available-for-sale $ 1,377,901 $ (9,613 ) $ 457,632 $ (24,723 ) $ 1,835,533 $ (34,336 )
Composition, Repricing and Yield Information of Investment Securities Portfolio	The following table presents the composition and the repricing and yield information of the investment securities portfolio as of June 30, 2019 : One year or less More than One Year through Five Years More than Five Years through Ten Years More than Ten Years Total ($ in thousands) Fair Value Weighted-Average Yield Fair Value Weighted-Average Yield Fair Value Weighted-Average Yield Fair Value Weighted-Average Yield Fair Value Weighted-Average Yield Securities available-for-sale: SBA loan pool securities $ — — % $ — — % $ — — % $ 853 2.08 % $ 853 2.08 % U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 243 2.36 % 3,069 2.67 % — — % 426,035 2.74 % 429,347 2.74 % Non-agency residential mortgage-backed securities 66 3.23 % — — % — — % 219 5.74 % 285 5.16 % Collateralized loan obligations 737,202 3.71 % — — % — — % — — % 737,202 3.71 % Total securities available-for-sale $ 737,511 3.71 % $ 3,069 2.67 % $ — — % $ 427,107 2.74 % $ 1,167,687 3.35 %

LOANS AND ALLOWANCE FOR LOAN _2

LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Loans and Leases Receivable	The following table presents the balances in the Company’s loan portfolios as of the dates indicated: ($ in thousands) June 30, December 31, Commercial: Commercial and industrial $ 1,951,707 $ 1,944,142 Commercial real estate 856,497 867,013 Multifamily 1,598,978 2,241,246 SBA 80,929 68,741 Construction 209,029 203,976 Consumer: Single family residential mortgage 1,961,065 2,305,490 Other consumer 61,365 70,265 Total loans (1) $ 6,719,570 $ 7,700,873 Percentage to total loans 100.0 % 100.0 % Allowance for loan losses (59,523 ) (62,192 ) Loans receivable, net $ 6,660,047 $ 7,638,681 (1) Total loans include deferred loan origination costs/(fees) and premiums/(discounts), net of $16.1 million and $17.7 million , respectively, at June 30, 2019 and December 31, 2018 .
Non Traditional Mortgages Portfolio	The following table presents the composition of the NTM portfolio as of the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) Count Amount Percent Count Amount Percent Consumer: Single family residential mortgage: Green Loans (HELOC) - first liens (1) 78 $ 61,439 8.2 % 88 $ 67,729 8.2 % Interest-only - first liens (2) 444 680,361 91.0 % 519 753,061 91.1 % Negative amortization (3) 10 3,219 0.4 % 11 3,528 0.4 % Total NTM - first liens 532 745,019 99.7 % 618 824,318 99.7 % Other consumer: Green Loans (HELOC) - second liens (1) 7 2,247 0.3 % 10 2,413 0.3 % Total NTM - second liens 7 2,247 0.3 % 10 2,413 0.3 % Total NTM loans 539 $ 747,266 100.0 % 628 $ 826,731 100.0 % Total loans receivable $ 6,719,570 $ 7,700,873 % of total NTM loans to total loans receivable 11.1 % 10.7 %
Allowance for Loan and Lease Losses and Recorded Investment, Excluding Accrued Interest, in Loans	The following table presents a summary of activity in the ALLL for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Balance at beginning of period $ 63,885 $ 54,763 $ 62,192 $ 49,333 Loans charged off (2,451 ) (950 ) (3,514 ) (15,589 ) Recoveries of loans previously charged off 76 212 320 782 Net charge-offs (2,375 ) (738 ) (3,194 ) (14,807 ) (Reversal of) provision for loan losses (1,987 ) 2,653 525 22,152 Balance at end of period $ 59,523 $ 56,678 $ 59,523 $ 56,678 The following table presents the activity and balance in the ALLL and the recorded investment, excluding accrued interest, in loans based on the impairment methodology as of or for the three and six months ended June 30, 2019 : ($ in thousands) Commercial and Industrial Commercial Real Estate Multifamily SBA Construction Lease Financing Single Family Residential Mortgage Other Consumer Total ALLL: Balance at March 31, 2019 $ 18,893 $ 6,838 $ 18,898 $ 3,057 $ 3,453 $ — $ 12,142 $ 604 $ 63,885 Charge-offs (2,022 ) — (6 ) 8 — — (425 ) (6 ) (2,451 ) Recoveries 11 — — 60 — 3 — 2 76 Net charge-offs (2,011 ) — (6 ) 68 — 3 (425 ) (4 ) (2,375 ) Provision (reversal) 4,647 39 (6,267 ) (5 ) 262 (3 ) (645 ) (15 ) (1,987 ) Balance at June 30, 2019 $ 21,529 $ 6,877 $ 12,625 $ 3,120 $ 3,715 $ — $ 11,072 $ 585 $ 59,523 Balance at December 31, 2018 $ 18,191 $ 6,674 $ 17,970 $ 1,827 $ 3,461 $ — $ 13,128 $ 941 $ 62,192 Charge-offs (2,115 ) — (6 ) (348 ) — — (951 ) (94 ) (3,514 ) Recoveries 44 — — 101 — 6 150 19 320 Net charge-offs (2,071 ) — (6 ) (247 ) — 6 (801 ) (75 ) (3,194 ) Provision 5,409 203 (5,339 ) 1,540 254 (6 ) (1,255 ) (281 ) 525 Balance at June 30, 2019 $ 21,529 $ 6,877 $ 12,625 $ 3,120 $ 3,715 $ — $ 11,072 $ 585 $ 59,523 Individually evaluated for impairment $ 1,239 $ — $ — $ 1,563 $ — $ — $ — $ 22 $ 2,824 Collectively evaluated for impairment 20,290 6,877 12,625 1,557 3,715 — 11,072 563 56,699 Total ending ALLL balance $ 21,529 $ 6,877 $ 12,625 $ 3,120 $ 3,715 $ — $ 11,072 $ 585 $ 59,523 Loans: Individually evaluated for impairment $ 20,429 $ — $ — $ 3,262 $ 2,519 $ — $ 21,021 $ 1,169 $ 48,400 Collectively evaluated for impairment 1,931,278 856,497 1,598,978 77,667 206,510 — 1,940,044 60,196 6,671,170 Total ending loan balances $ 1,951,707 $ 856,497 $ 1,598,978 $ 80,929 $ 209,029 $ — $ 1,961,065 $ 61,365 $ 6,719,570 The following table presents the activity and balance in the ALLL and the recorded investment, excluding accrued interest, in loans based on the impairment methodology as of or for the three and six months ended June 30, 2018 : ($ in thousands) Commercial and Industrial Commercial Real Estate Multifamily SBA Construction Lease Financing Single Family Residential Mortgage Other Consumer Total ALLL: Balance at March 31, 2018 $ 17,571 $ 5,417 $ 14,219 $ 1,577 $ 3,220 $ — $ 11,969 $ 790 $ 54,763 Charge-offs (276 ) — (8 ) (302 ) — — (364 ) — (950 ) Recoveries 36 — — 167 — 5 — 4 212 Net charge-offs (240 ) — (8 ) (135 ) — 5 (364 ) 4 (738 ) Provision (reversal) (467 ) 315 419 398 199 (5 ) 1,631 163 2,653 Balance at June 30, 2018 $ 16,864 $ 5,732 $ 14,630 $ 1,840 $ 3,419 $ — $ 13,236 $ 957 $ 56,678 Balance at December 31, 2017 $ 14,280 $ 4,971 $ 13,265 $ 1,701 $ 3,318 $ — $ 10,996 $ 802 $ 49,333 Charge-offs (347 ) — (8 ) (683 ) — — (479 ) (14,072 ) (15,589 ) Recoveries 97 — — 232 — 9 436 8 782 Net charge-offs (250 ) — (8 ) (451 ) — 9 (43 ) (14,064 ) (14,807 ) Provision 2,834 761 1,373 590 101 (9 ) 2,283 14,219 22,152 Balance at June 30, 2018 $ 16,864 $ 5,732 $ 14,630 $ 1,840 $ 3,419 $ — $ 13,236 $ 957 $ 56,678 Individually evaluated for impairment $ 595 $ — $ — $ 124 $ — $ — $ 461 $ 8 $ 1,188 Collectively evaluated for impairment 16,269 5,732 14,630 1,716 3,419 — 12,775 949 55,490 Total ending ALLL balance $ 16,864 $ 5,732 $ 14,630 $ 1,840 $ 3,419 $ — $ 13,236 $ 957 $ 56,678 Loans: Individually evaluated for impairment $ 5,829 $ — $ — $ 646 $ — $ — $ 20,140 $ 750 $ 27,365 Collectively evaluated for impairment 1,736,730 793,855 1,959,965 77,446 211,110 — 2,154,043 75,490 7,008,639 Total ending loan balances $ 1,742,559 $ 793,855 $ 1,959,965 $ 78,092 $ 211,110 $ — $ 2,174,183 $ 76,240 $ 7,036,004
Loans and Leases Individually Evaluated for Impairment by Class of Loans and Leases	The following table presents loans individually evaluated for impairment by class of loans as of the dates indicated. The recorded investment, excluding accrued interest, presents customer balances net of any partial charge-offs recognized on the loans and net of any deferred fees and costs and any purchase premium or discount. June 30, 2019 December 31, 2018 ($ in thousands) Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Unpaid Principal Balance Recorded Investment Allowance for Loan Losses With no related ALLL recorded: Commercial: Commercial and industrial $ 18,434 $ 18,404 $ — $ 5,491 $ 5,455 $ — Commercial real estate — — — — — — SBA 1,320 1,251 — 1,668 1,588 — Construction 2,519 2,519 — — — — Consumer: Single family residential mortgage 20,938 21,021 — 12,115 12,161 — Other consumer 1,167 1,147 — 469 469 — With an ALLL recorded: Commercial: Commercial and industrial 2,025 2,025 1,239 — — — SBA 2,107 2,011 1,563 823 788 562 Consumer: Single family residential mortgage — — — 5,993 6,032 161 Other consumer 22 22 22 468 452 106 Total $ 48,532 $ 48,400 $ 2,824 $ 27,027 $ 26,945 $ 829 The following table presents information on impaired loans, disaggregated by class, for the periods indicated: Three Months Ended Six Months Ended ($ in thousands) Average Recorded Investment Interest Income Recognized Cash Basis Interest Recognized Average Recorded Investment Interest Income Recognized Cash Basis Interest Recognized June 30, 2019 Commercial: Commercial and industrial $ 20,794 $ 255 $ 254 $ 12,921 $ 255 $ 254 Commercial real estate — — — 289 — — SBA 3,297 4 4 3,571 8 8 Construction 2,519 — — 2,519 — — Consumer: Single family residential mortgage 21,092 58 48 20,208 116 97 Other consumer 1,177 4 3 1,011 7 6 Total $ 48,879 $ 321 $ 309 $ 40,519 $ 386 $ 365 June 30, 2018 Commercial: Commercial and industrial $ 5,900 $ 1 $ 1 $ 5,616 $ 4 $ 4 SBA 654 — — 514 — — Consumer: Single family residential mortgage 20,274 58 47 19,994 115 96 Other consumer 760 3 3 755 6 5 Total $ 27,588 $ 62 $ 51 $ 26,879 $ 125 $ 105
Aging of Recorded Investment in Past Due Loans and Leases	The following table presents the aging of the recorded investment in past due loans, excluding accrued interest receivable (which is not considered to be material), by class of loans as of dates indicated: ($ in thousands) 30 - 59 Days Past Due 60 - 89 Days Past Due Greater than 89 Days Past due Total Past Due Current Total June 30, 2019 NTM loans: Single family residential mortgage $ 19,960 $ — $ 827 $ 20,787 $ 724,232 $ 745,019 Other consumer — — — — 2,247 2,247 Total NTM loans 19,960 — 827 20,787 726,479 747,266 Traditional loans: Commercial: Commercial and industrial 1,063 997 4,017 6,077 1,945,630 1,951,707 Commercial real estate — — — — 856,497 856,497 Multifamily — — — — 1,598,978 1,598,978 SBA 944 73 2,672 3,689 77,240 80,929 Construction — — 2,519 2,519 206,510 209,029 Consumer: Single family residential mortgage 7,447 3,645 6,683 17,775 1,198,271 1,216,046 Other consumer 514 295 554 1,363 57,755 59,118 Total traditional loans 9,968 5,010 16,445 31,423 5,940,881 5,972,304 Total $ 29,928 $ 5,010 $ 17,272 $ 52,210 $ 6,667,360 $ 6,719,570 December 31, 2018 NTM loans: Single family residential mortgage $ 7,430 $ 617 $ — $ 8,047 $ 816,271 $ 824,318 Other consumer — — — — 2,413 2,413 Total NTM loans 7,430 617 — 8,047 818,684 826,731 Traditional loans: Commercial: Commercial and industrial 350 1,596 3,340 5,286 1,938,856 1,944,142 Commercial real estate — 582 — 582 866,431 867,013 Multifamily 356 — — 356 2,240,890 2,241,246 SBA 551 77 862 1,490 67,251 68,741 Construction — 939 — 939 203,037 203,976 Consumer: Single family residential mortgage 7,321 3,160 9,198 19,679 1,461,493 1,481,172 Other consumer 3,132 573 446 4,151 63,701 67,852 Total traditional loans 11,710 6,927 13,846 32,483 6,841,659 6,874,142 Total $ 19,140 $ 7,544 $ 13,846 $ 40,530 $ 7,660,343 $ 7,700,873
Composition of Nonaccrual Loans and Leases	The following table presents non-accrual loans as of the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) NTM Loans Traditional Loans Total NTM Loans Traditional Loans Total Non-accrual loans Commercial: Commercial and industrial $ — $ 5,716 $ 5,716 $ — $ 5,455 $ 5,455 Commercial real estate — — — — — — SBA — 3,440 3,440 — 2,574 2,574 Construction — 2,519 2,519 — — — Consumer: Single family residential mortgage 1,113 14,836 15,949 — 12,929 12,929 Other consumer — 875 875 — 627 627 Total non-accrual loans $ 1,113 $ 27,386 $ 28,499 $ — $ 21,585 $ 21,585
Troubled Debt Restructurings	The following table summarizes the pre-modification and post-modification balances of the new TDRs for the periods indicated: Three Months Ended Six Months Ended ($ in thousands) Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment June 30, 2019 Commercial: Commercial and industrial 10 $ 17,339 $ 17,020 10 $ 17,339 $ 17,020 SBA 2 3,214 869 2 3,214 869 Consumer: Single family residential mortgage — — — — — — Other consumer — $ — $ — — $ — $ — Total 12 20,553 17,889 12 $ 20,553 $ 17,889 June 30, 2018 Commercial: Commercial and industrial — $ — $ — 2 $ 171 $ 163 Total — $ — $ — 2 $ 171 $ 163 The Company considers a TDR to be in payment default once it becomes 30 days or more past due following a modification. During the six months ended June 30, 2019 and 2018 , there were no loans that were modified as TDRs during the past 12 months that had subsequent payment defaults during the periods. The following table summarizes TDRs by modification type for the periods indicated: Three Months Ended Modification Type Change in Principal Payments and Interest Rates Change in Principal Payments Total ($ in thousands) Count Amount Count Amount Count Amount June 30, 2019 Commercial: Commercial and industrial 10 $ 17,020 — $ — 10 $ 17,020 SBA 2 $ 869 — $ — 2 $ 869 Total 12 $ 17,889 — $ — 12 $ 17,889 June 30, 2018 Total — $ — — $ — — $ — Six Months Ended Modification Type Change in Principal Payments and Interest Rates Change in Principal Payments Total ($ in thousands) Count Amount Count Amount Count Amount June 30, 2019 Commercial: Commercial and industrial 10 $ 17,020 — $ — 10 $ 17,020 SBA 2 $ 869 — $ — 2 $ 869 Total 12 $ 17,889 — $ — 12 $ 17,889 June 30, 2018 Commercial: Commercial and industrial — $ — 2 $ 163 2 $ 163 Total — $ — 2 $ 163 2 $ 163 Troubled debt restructured loans consisted of the following as of the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) NTM Loans Traditional Loans Total NTM Loans Traditional Loans Total Commercial: Commercial and industrial $ — $ 16,250 $ 16,250 $ — $ 2,276 $ 2,276 SBA — 1,057 1,057 — 187 187 Consumer: Single family residential mortgage 2,653 2,419 5,072 2,668 2,596 5,264 Other consumer 294 — 294 294 — 294 Total $ 2,947 $ 19,726 $ 22,673 $ 2,962 $ 5,059 $ 8,021
Risk Categories for Loans and Leases	The following table presents the risk categories for total loans as of the dates indicated: ($ in thousands) Pass Special Mention Substandard Doubtful Total June 30, 2019 NTM loans: Single family residential mortgage $ 729,845 $ 12,751 $ 2,423 $ — $ 745,019 Other consumer 2,247 — — — 2,247 Total NTM loans 732,092 12,751 2,423 — 747,266 Traditional loans: Commercial: Commercial and industrial 1,844,472 50,702 56,533 — 1,951,707 Commercial real estate 832,173 14,519 9,805 — 856,497 Multifamily 1,581,629 11,488 5,861 — 1,598,978 SBA 66,448 4,074 9,605 802 80,929 Construction 194,842 9,172 5,015 — 209,029 Consumer: Single family residential mortgage 1,193,532 6,017 15,980 517 1,216,046 Other consumer 57,177 471 1,470 — 59,118 Total traditional loans 5,770,273 96,443 104,269 1,319 5,972,304 Total $ 6,502,365 $ 109,194 $ 106,692 $ 1,319 $ 6,719,570 December 31, 2018 NTM loans: Single family residential mortgage $ 811,056 $ 10,966 $ 2,296 $ — $ 824,318 Other consumer 2,413 — — — 2,413 Total NTM loans 813,469 10,966 2,296 — 826,731 Traditional loans: Commercial: Commercial and industrial 1,859,569 41,302 43,271 — 1,944,142 Commercial real estate 851,604 11,376 4,033 — 867,013 Multifamily 2,239,301 — 1,945 — 2,241,246 SBA 53,433 6,114 8,340 854 68,741 Construction 197,851 3,606 2,519 — 203,976 Consumer: Single family residential mortgage 1,461,721 2,602 16,849 — 1,481,172 Other consumer 66,228 979 645 — 67,852 Total traditional loans 6,729,707 65,979 77,602 854 6,874,142 Total $ 7,543,176 $ 76,945 $ 79,898 $ 854 $ 7,700,873
Summary of Significant Activities	The following table presents loans transferred from (to) loans held-for-sale by portfolio segment for the periods indicated: Three Months Ended Six Months Ended ($ in thousands) Transfers from Held-For-Sale Transfers (to) Held-For-Sale Transfers from Held-For-Sale Transfers (to) Held-For-Sale June 30, 2019 Commercial: Commercial real estate $ — $ (573 ) $ — $ (573 ) Multifamily — (752,087 ) — (752,087 ) Consumer: Single family residential mortgage $ — $ (131,315 ) $ — $ (374,679 ) Total $ — $ (883,975 ) $ — $ (1,127,339 ) June 30, 2018 Commercial: Multifamily $ — $ (71,449 ) $ — $ (71,449 ) Consumer: Single family residential mortgage — (133,829 ) — (136,013 ) Other consumer — — — (4,362 ) Total $ — $ (205,278 ) $ — $ (211,824 )

LEASES (Tables)

LEASES (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Components of Lease Expense	The components of lease expense were as follows: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2019 Operating Lease Expense $ 1,720 $ 3,496 Variable Lease Expense 89 178 Sublease Income (15 ) (250 ) Total Lease Expense $ 1,794 $ 3,424 Supplemental cash flow information related to leases was as follows: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2019 Cash paid for amounts included in the measurement of lease liabilities for operating leases: Operating cash flows $ 1,738 $ 3,619 ROU assets obtained in the exchange for lease liabilities: ROU assets obtained in exchange for lease liabilities $ 1,055 $ 4,089 ROU assets recognized upon adoption of new lease standard $ — $ 23,332
Supplemental Balance Sheet Information	Supplemental balance sheet information related to leases was as follows: ($ in thousands) June 30, Operating Leases: Operating lease right-of-use assets $ 24,118 Operating lease liabilities 25,457 June 30, 2019 Weighted-average remaining lease term (in years): Operating leases 6.64 years Weighted-average discount rate: Operating leases 2.88 %
Maturities of Lease Liabilities	Maturities of lease liabilities at June 30, 2019 were as follows: ($ in thousands) Operating Leases Remainder of 2019 $ 3,325 2020 6,590 2021 4,827 2022 3,250 2023 2,440 2024 1,568 Thereafter 6,338 Total lease payments 28,338 Less: present value discount (2,881 ) Total Lease Liability $ 25,457

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS, NET (Tables)	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	As of June 30, 2019 , the weighted average remaining amortization period for core deposit intangibles was approximately 5.1 years . ($ in thousands) Gross Carrying Value Accumulated Amortization Net Carrying Value June 30, 2019 Core deposit intangibles $ 30,904 $ 25,799 $ 5,105 December 31, 2018 Core deposit intangibles $ 30,904 $ 24,558 $ 6,346
Estimated Future Amortization Expense	The following table presents estimated future amortization expenses as of June 30, 2019 : ($ in thousands) Remainder of 2019 2020 2021 2022 2023 2024 and After Total Estimated future amortization expense $ 954 $ 1,518 $ 1,082 $ 799 $ 517 $ 235 $ 5,105

FEDERAL HOME LOAN BANK ADVANC_2

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS (Tables)	6 Months Ended
	Jun. 30, 2019
Banking and Thrift [Abstract]
Summary of Advances from the FHLB	The following table presents the Company's advances from the FHLB as of the dates indicated: ($ in thousands) June 30, December 31, Fixed rate: Outstanding balance $ 1,180,000 $ 805,000 Interest rates ranging from 1.61 % 1.61 % Interest rates ranging to 3.32 % 3.32 % Weighted average interest rate 2.51 % 2.58 % Variable rate: Outstanding balance 645,000 715,000 Weighted average interest rate 2.52 % 2.56 %

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	The following table presents the Company's long-term debt as of the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) Par Value Unamortized Debt Issuance Cost and Discount Par Value Unamortized Debt Issuance Cost and Discount 5.25% senior notes due April 15, 2025 $ 175,000 $ (1,743 ) $ 175,000 $ (1,826 ) Total $ 175,000 $ (1,743 ) $ 175,000 $ (1,826 )

DERIVATIVE INSTRUMENTS (Tables)

DERIVATIVE INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount and Market Value of Mortgage Banking Derivatives	The following table presents the notional amount and fair value of derivative instruments included in the Consolidated Statements of Financial Condition as of the dates indicated. June 30, 2019 December 31, 2018 ($ in thousands) Notional Amount Fair Value(1) Notional Amount Fair Value(1) Derivative assets: Interest rate swaps and caps on loans $ 130,121 $ 4,119 $ 103,812 $ 1,534 Foreign exchange contracts 1,209 30 — — Total $ 131,330 $ 4,149 $ 103,812 $ 1,534 Derivative liabilities: Interest rate swaps and caps on loans $ 673,514 $ 14,041 $ 103,812 1,600 Foreign exchange contracts 1,209 14 — — Total $ 674,723 $ 14,055 $ 103,812 $ 1,600 (1) The fair value of derivative assets and derivative liabilities are included in other assets and accrued expenses and other liabilities, respectively, in the accompanying consolidated balance sheets.

EMPLOYEE STOCK COMPENSATION (Ta

EMPLOYEE STOCK COMPENSATION (Tables)	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Summary of Share-Based Compensation Expense	The following table presents stock-based compensation expense and the related tax benefits for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Stock options $ (24 ) $ 80 $ (16 ) $ 113 Restricted stock awards and units 1,521 1,708 2,366 3,762 Total share-based compensation expense $ 1,497 $ 1,788 $ 2,350 $ 3,875 Related tax benefits $ 440 $ 524 $ 691 $ 1,136
Unrecognized Share-Based Compensation Expense	The following table presents unrecognized stock-based compensation expense as of June 30, 2019 : ($ in thousands) Unrecognized Expense Weighted-Average Remaining Expected Recognition Period Stock option awards $ 11 1.0 year Restricted stock awards and restricted stock units 12,826 2.5 years Total $ 12,837 2.5 years
Option Activity	The following table represents stock option activity for the three months ended June 30, 2019 : Three Months Ended June 30, 2019 ($ in thousands except per share data) Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregated Intrinsic Value Outstanding at beginning of period 170,973 $ 13.56 5.5 years Exercised (1,836 ) $ 10.90 5.1 years Forfeited (33,616 ) $ 13.37 6.0 years Outstanding at end of period 135,521 $ 13.65 5.1 years $ 43 Exercisable at end of period 127,673 $ 13.67 5.0 years $ 38 The following table represents stock option activity for the six months ended June 30, 2019 : Six Months Ended June 30, 2019 ($ in thousands except per share data) Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregated Intrinsic Value Outstanding at beginning of period 186,973 $ 13.54 5.8 years Exercised (1,836 ) $ 10.90 5.1 years Forfeited (49,616 ) $ 13.34 6.1 years Outstanding at end of period 135,521 $ 13.65 5.1 years $ 43 Exercisable at end of period 127,673 $ 13.67 5.0 years $ 38
Nonvested Share	The following table sets forth information regarding unvested stock options for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Number of Shares Weighted-Average Exercise Price Per Share Number of Shares Weighted-Average Outstanding at beginning of period 47,848 $ 13.30 63,848 $ 13.30 Vested (12,000 ) $ 13.29 (12,000 ) $ 13.29 Forfeited (28,000 ) $ 13.29 (44,000 ) $ 13.29 Outstanding at end of period 7,848 $ 13.35 7,848 $ 13.35
Restricted Stock and Restricted Stock Units Activity	The following table presents unvested restricted stock awards and restricted stock units activity for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Number of Shares Weighted Average Grant Date Fair Value Per Share Number of Shares Weighted Average Grant Date Fair Value Outstanding at beginning of period 848,644 $ 18.20 833,601 $ 19.02 Granted (1) 587,804 $ 14.23 723,398 $ 14.33 Vested (2) (201,816 ) $ 19.07 (215,257 ) $ 18.94 Forfeited (3) (127,778 ) $ 18.19 (234,888 ) $ 19.19 Outstanding at end of period 1,106,854 $ 15.93 1,106,854 $ 15.93 (1) There were 151,395 performance-based shares/units included in shares granted for the three and six months ended June 30, 2019 . (2) There were 37,572 performance-based shares/units included in vested shares for the three and six months ended June 30, 2019 . (3) The number of forfeited shares includes aggregate performance-based shares/units of 69,966 and 142,533 for the three and six months ended June 30, 2019 , respectively.
Summary of all Outstanding SARs	The following table represents SARs activity and the weighted average exercise price per share as of and for the three months ended June 30, 2019 : Three Months Ended June 30, 2019 ($ in thousands except per share data) Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregated Intrinsic Value Outstanding at beginning of period 1,559,012 $ 11.60 3.4 years $ 3,488 Outstanding at end of period 1,559,012 $ 11.60 3.2 years $ 3,691 Exercisable at end of period 1,559,012 $ 11.60 3.2 years $ 3,691 The following table represents SARs activity and the weighted average exercise price per share as of and for the six months ended June 30, 2019 : Six Months Ended June 30, ($ in thousands except per share data) Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregated Intrinsic Value Outstanding at beginning of period 1,559,012 $ 11.60 3.6 years $ 2,662 Outstanding at end of period 1,559,012 $ 11.60 3.2 years $ 3,691 Exercisable at end of period 1,559,012 $ 11.60 3.2 years $ 3,691

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Summary of Preferred Stock	The following table presents the Company's total outstanding preferred stock as of dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) Shares Authorized and Outstanding Liquidation Preference Carrying Value Shares Authorized and Outstanding Liquidation Preference Carrying Value Series C 8.00% non-cumulative perpetual $ — $ — $ — $ — $ — $ — Series D 7.375% non-cumulative perpetual 115,000 115,000 110,873 115,000 115,000 110,873 Series E 7.00% non-cumulative perpetual 125,000 125,000 120,255 125,000 125,000 120,255 Total $ 240,000 $ 240,000 $ 231,128 $ 240,000 $ 240,000 $ 231,128
Changes to Accumulate Other Comprehensive Income by Components	The following table presents changes to AOCI for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Unrealized gain (loss) on securities available-for-sale Balance at beginning of period $ (18,091 ) $ (11,542 ) $ (24,117 ) $ 5,227 Unrealized gain (loss) arising during the period 7,678 (10,796 ) 16,422 (30,478 ) Reclassification adjustment from other comprehensive income — (278 ) (208 ) (5,519 ) Tax effect of current period changes (2,255 ) 3,246 (4,765 ) 10,904 Total changes, net of taxes 5,423 (7,828 ) 11,449 (25,093 ) Reclassification of stranded tax effects to retained earnings — — — 496 Balance at end of period $ (12,668 ) $ (19,370 ) $ (12,668 ) $ (19,370 )

VARIABLE INTEREST ENTITIES (Tab

VARIABLE INTEREST ENTITIES (Tables)	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Unconsolidated VIEs	The following table represents the carrying value of the associated unconsolidated assets and liabilities and the associated maximum loss exposure for alternative energy partnerships as of the dates indicated: ($ in thousands) June 30, December 31, Cash $ 3,610 $ 3,012 Equipment, net of depreciation 252,888 259,464 Other assets 4,842 4,470 Total unconsolidated assets $ 261,340 $ 266,946 Total unconsolidated liabilities $ 6,166 $ 6,269 Maximum loss exposure $ 30,429 $ 28,988

EARNINGS PER COMMON SHARE (Tabl

EARNINGS PER COMMON SHARE (Tables)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Basic and Diluted Earnings Per Common Share	The following table presents computations of basic and diluted earnings per common share for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 ($ in thousands except per share data) Common Stock Class B Common Stock Total Common Stock Class B Common Stock Total Income from continuing operations $ 16,426 $ 156 $ 16,582 $ 23,397 $ 222 $ 23,619 Less: income allocated to participating securities (268 ) (3 ) (271 ) (152 ) (1 ) (153 ) Less: participating securities dividends (93 ) (1 ) (94 ) (292 ) (3 ) (295 ) Less: preferred stock dividends (4,268 ) (40 ) (4,308 ) (8,535 ) (81 ) (8,616 ) Income from continuing operations allocated to common stockholders 11,797 112 11,909 14,418 137 14,555 Income from discontinued operations — — — — — — Net income allocated to common stockholders $ 11,797 $ 112 $ 11,909 $ 14,418 $ 137 $ 14,555 Weighted average common shares outstanding 50,379,816 477,321 50,857,137 50,290,107 477,321 50,767,428 Dilutive effects of stock units 103,677 — 103,677 119,967 — 119,967 Dilutive effects of stock options 4,142 — 4,142 7,795 — 7,795 Dilutive effects of warrants — — — — — — Average shares and dilutive common shares 50,487,635 477,321 50,964,956 50,417,869 477,321 50,895,190 Basic earnings per common share Income from continuing operations $ 0.23 $ 0.23 $ 0.23 $ 0.29 $ 0.29 $ 0.29 Income from discontinued operations — — — — — — Net income $ 0.23 $ 0.23 $ 0.23 $ 0.29 $ 0.29 $ 0.29 Diluted earnings per common share Income from continuing operations $ 0.23 $ 0.23 $ 0.23 $ 0.29 $ 0.29 $ 0.29 Income from discontinued operations — — — — — — Net income $ 0.23 $ 0.23 $ 0.23 $ 0.29 $ 0.29 $ 0.29 For the three and six months ended June 30, 2019 , there were 517,833 and 484,163 , respectively, of stock units and 58,859 and 33,013 , respectively, of stock options that were not considered in computing diluted earnings per common share, because they were anti-dilutive. The following table presents computations of basic and diluted EPS for the three and six months ended June 30, 2018 : Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 ($ in thousands except per share data) Common Stock Class B Common Stock Total Common Stock Class B Common Stock Total Income from continuing operations $ 13,709 $ 145 $ 13,854 $ 20,713 $ 215 $ 20,928 Less: income allocated to participating securities (85 ) (1 ) (86 ) — — — Less: participating securities dividends (201 ) (2 ) (203 ) (402 ) (4 ) (406 ) Less: preferred stock dividends (5,059 ) (54 ) (5,113 ) (10,121 ) (105 ) (10,226 ) Income from continuing operations allocated to common stockholders 8,364 88 8,452 10,190 106 10,296 Income from discontinued operations 916 10 926 2,385 25 2,410 Net income allocated to common stockholders $ 9,280 $ 98 $ 9,378 $ 12,575 $ 131 $ 12,706 Weighted average common shares outstanding 50,062,442 530,987 50,593,429 50,072,385 519,610 50,591,995 Dilutive effects of stock units 211,380 — 211,380 153,029 — 153,029 Dilutive effects of stock options 40,561 — 40,561 44,082 — 44,082 Dilutive effects of warrants 73,721 — 73,721 111,781 — 111,781 Average shares and dilutive common shares 50,388,104 530,987 50,919,091 50,381,277 519,610 50,900,887 Basic earnings per common share Income from continuing operations $ 0.17 $ 0.17 $ 0.17 $ 0.20 $ 0.20 $ 0.20 Income from discontinued operations 0.02 0.02 0.02 0.05 0.05 0.05 Net income $ 0.19 $ 0.19 $ 0.19 $ 0.25 $ 0.25 $ 0.25 Diluted earnings per common share Income from continuing operations $ 0.16 $ 0.17 $ 0.16 $ 0.20 $ 0.20 $ 0.20 Income from discontinued operations 0.02 0.02 0.02 0.05 0.05 0.05 Net income $ 0.18 $ 0.19 $ 0.18 $ 0.25 $ 0.25 $ 0.25 For the three and six months ended June 30, 2018 , there were 38,836 and 222,431 , respectively, of stock units and 0 and 0 , respectively of stock options that were not considered in computing diluted earnings per common share, because they were anti-dilutive.

LOAN COMMITMENTS AND OTHER RE_2

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES (Tables)	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk	The contractual amount of financial instruments with off-balance-sheet risk was as follows for the dates indicated: June 30, 2019 December 31, 2018 ($ in thousands) Fixed Rate Variable Rate Fixed Rate Variable Rate Commitments to extend credit (1) $ 60 $ 247,435 $ 2,167 $ 288,770 Unused lines of credit 817 904,298 1,514 1,119,158 Letters of credit 1,847 8,402 1,266 8,561 (1) Included no commitments to extend credit related to discontinued operations at December 31, 2018 .

REVENUE RECOGNITION (Tables)

REVENUE RECOGNITION (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Summary of Noninterest (Loss) Income	The following presents noninterest (loss) income, segregated by revenue streams in-scope and out-of-scope of Topic 606 - Revenue From Contracts With Customers , for the periods indicated. Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2019 2018 2019 2018 Noninterest income In scope of Topic 606 Deposit service fees $ 575 $ 708 $ 1,242 $ 1,486 Debit card fees 178 177 291 402 Investment commissions 260 619 539 942 Other 109 — 216 155 Noninterest income (in-scope of Topic 606) 1,122 1,504 2,288 2,985 Noninterest (loss) income (out-of-scope of Topic 606) (3,412 ) 6,557 1,717 13,658 Total noninterest (loss) income $ (2,290 ) $ 8,061 $ 4,005 $ 16,643

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)banking_office	Jan. 01, 2019USD ($)
Accounting Policies [Abstract]
Number of banking offices | banking_office		32
Change in Accounting Estimate [Line Items]
Restructuring (reversal) costs incurred	$ (158)	$ 2,600
ROU assets	24,118	24,118
Operating lease liabilities	$ 25,457	$ 25,457
ASU 2016-02
Change in Accounting Estimate [Line Items]
ROU assets			$ 23,300
Adjustment to remove deferred rent liability			1,400
Operating lease liabilities			$ 24,700

SALE OF BUSINESS UNIT (DISCON_2

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) - Banc Home Loans Sale Additional Information (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net gain on disposal	$ 0	$ 0	$ 272,000	$ 0	$ 1,275,000
Assets of discontinued operations	0			0		$ 19,490,000
Banc Home Loan | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net gain on disposal	0		272,000	0	1,300,000
Income from earn-out	755,000		$ 1,200,000	777,000	$ 1,400,000
Assets of discontinued operations	0			0		19,500,000
Liabilities of discontinued operations	$ 0			$ 0		$ 0

FAIR VALUES OF FINANCIAL INST_3

FAIR VALUES OF FINANCIAL INSTRUMENTS - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held-for-sale that were 90 days or more past due and still accruing	$ 0	$ 0
Discontinued Operations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held-for-sale that were 90 days or more past due and still accruing	$ 0	$ 0
Insured
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Expected loss rate	1.55%	1.55%
Uninsured
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Expected loss rate	20.00%	20.00%

FAIR VALUES OF FINANCIAL INST_4

FAIR VALUES OF FINANCIAL INSTRUMENTS - Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 1,167,687	$ 1,992,500
Loans held-for-sale, carried at fair value	23,794	27,606
Derivative assets	4,149	1,534
Derivative liabilities	14,055	1,600
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Loans held-for-sale, carried at fair value	0	0
Derivative assets	0	0
Derivative liabilities	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,167,687	1,992,500
Loans held-for-sale, carried at fair value	2,719	2,566
Derivative assets	4,149	1,534
Derivative liabilities	14,055	1,600
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Loans held-for-sale, carried at fair value	21,075	25,040
Derivative assets	0	0
Derivative liabilities	0	0
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,167,687	1,992,500
Loans held-for-sale, carried at fair value	23,794	27,606
Derivative assets	4,149	1,534
Derivative liabilities	14,055	1,600
Recurring | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, carried at fair value		19,500
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, carried at fair value	0	0
Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, carried at fair value	2,719	2,140
Recurring | Significant Other Observable Inputs (Level 2) | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, carried at fair value		2,100
Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, carried at fair value	21,075	25,040
Recurring | Significant Unobservable Inputs (Level 3) | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, carried at fair value		17,400
Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, carried at fair value	23,794	27,180
SBA loan pools securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	853	910
SBA loan pools securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
SBA loan pools securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	853	910
SBA loan pools securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
SBA loan pools securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	853	910
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	429,347	437,442
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	429,347	437,442
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	429,347	437,442
Non-agency residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	285	427
Non-agency residential mortgage-backed securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Non-agency residential mortgage-backed securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	285	427
Non-agency residential mortgage-backed securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Non-agency residential mortgage-backed securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	285	427
Non-agency commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		132,199
Non-agency commercial mortgage-backed securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0
Non-agency commercial mortgage-backed securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		132,199
Non-agency commercial mortgage-backed securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0
Non-agency commercial mortgage-backed securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		132,199
Collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	737,202	1,421,522
Collateralized loan obligations | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Collateralized loan obligations | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	737,202	1,421,522
Collateralized loan obligations | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Collateralized loan obligations | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	737,202	1,421,522
Interest rate swaps and caps on loans | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Interest rate swaps and caps on loans | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	4,119	1,534
Derivative liabilities	14,041	1,600
Interest rate swaps and caps on loans | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Interest rate swaps and caps on loans | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	4,119	1,534
Derivative liabilities	14,041	$ 1,600
Foreign exchange contracts | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Derivative liabilities	0
Foreign exchange contracts | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	30
Derivative liabilities	14
Foreign exchange contracts | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Derivative liabilities	0
Foreign exchange contracts | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	30
Derivative liabilities	$ 14

FAIR VALUES OF FINANCIAL INST_5

FAIR VALUES OF FINANCIAL INSTRUMENTS - Reconciliation of Assets Measured at Fair Value on Recurring Basis (Detail) - Recurring - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Discontinued Operations, Disposed of by Sale | Banc Home Loan
Total gains or losses (realized/unrealized):
Loans held-for-sale, carried at fair value						$ 19,500,000
Significant Unobservable Inputs (Level 3) | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Total gains or losses (realized/unrealized):
Loans held-for-sale, carried at fair value						17,400,000
Significant Unobservable Inputs (Level 3) | U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 23,069,000	$ 42,962,000	$ 25,040,000	$ 98,940,000
Total gains or losses (realized/unrealized):
Included in earnings—fair value adjustment	(6,000)	(248,000)	(3,000)	(254,000)
Additions	0	2,765,000	0	27,385,000
Sales, paydowns, settlements, and other	(1,988,000)	(12,245,000)	(3,962,000)	(92,837,000)
Balance at end of period	21,075,000	33,234,000	21,075,000	33,234,000
Significant Unobservable Inputs (Level 3) | U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Total gains or losses (realized/unrealized):
Loans held-for-sale, carried at fair value	$ 0	$ 20,900,000	$ 0	$ 20,900,000	$ 0	$ 17,300,000	$ 24,000,000	$ 32,300,000

FAIR VALUES OF FINANCIAL INST_6

FAIR VALUES OF FINANCIAL INSTRUMENTS - Fair Value Option Loans Held-for-Sale (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
Continuing Operations
Fair Value
Total loans	$ 23,794		$ 23,794		$ 7,690
Non-accrual loans	6,594		6,594		2,427
Unpaid Principal Balance
Total loans	24,495		24,495		7,906
Non-accrual loans	6,685		6,685		2,538
Difference
Total loans	(701)		(701)		(216)
Non-accrual loans	(91)		(91)		(111)
Non-accrual loans, guaranteed by US government	5,900		5,900		1,600
Net gains (losses) from fair value changes	59	$ 6	60	$ (20)
Discontinued Operations
Fair Value
Total loans	0		0		19,490
Non-accrual loans	0		0		8,430
Unpaid Principal Balance
Total loans	0		0		20,027
Non-accrual loans	0		0		8,496
Difference
Total loans	0		0		(537)
Non-accrual loans	0		0		(66)
Non-accrual loans, guaranteed by US government	0		0		$ 7,600
Net gains (losses) from fair value changes	$ 0	$ (247)	$ 0	$ (245)

FAIR VALUES OF FINANCIAL INST_7

FAIR VALUES OF FINANCIAL INSTRUMENTS - Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
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
Quoted Prices in Active Markets for Identical Assets (Level 1) | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	$ 0
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
Significant Other Observable Inputs (Level 2) | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Significant Unobservable Inputs (Level 3) | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	486
Significant Unobservable Inputs (Level 3) | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	448	226
Carrying Value | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	486
Carrying Value | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 448	$ 226

FAIR VALUES OF FINANCIAL INST_8

FAIR VALUES OF FINANCIAL INSTRUMENTS - Gains and (Losses) on Non-Recurring Assets (Detail) - Nonrecurring - Impaired loans - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Single family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains and (losses) recognized on assets measured at fair value	$ 0	$ 0	$ (490)	$ (115)
Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains and (losses) recognized on assets measured at fair value	0	(231)	0	(292)
SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains and (losses) recognized on assets measured at fair value	0	0	(46)	(380)
Other consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains and (losses) recognized on assets measured at fair value	$ 0	$ 0	$ (88)	$ (141)

FAIR VALUES OF FINANCIAL INST_9

FAIR VALUES OF FINANCIAL INSTRUMENTS - Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financial assets
Cash and cash equivalents	$ 313,850	$ 391,592
Securities available-for-sale	1,167,687	1,992,500
Federal Home Loan Bank and other bank stock	76,373	68,094
Loans held-for-sale, carried at fair value	23,794	27,606
Loans held-for-sale, carried at lower of cost or fair value	573,926	426
Loans receivable, net of ALLL	6,550,673	7,513,910
Accrued interest receivable	31,908	38,807
Derivative assets	4,149	1,534
Financial liabilities
Deposits	6,231,819	7,689,324
Advances from Federal Home Loan Bank	1,850,016	1,517,761
Long term debt	177,693	174,059
Derivative liabilities	14,055	1,600
Accrued interest payable	9,681	13,253
Recurring | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Financial liabilities
Loans held-for-sale, carried at fair value		19,500
Nonrecurring | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Financial liabilities
Loans held-for-sale, carried at fair value		19,500
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets
Cash and cash equivalents	313,850	391,592
Securities available-for-sale	0	0
Federal Home Loan Bank and other bank stock	0	0
Loans held-for-sale, carried at fair value	0	0
Loans held-for-sale, carried at lower of cost or fair value	0
Loans receivable, net of ALLL	0	0
Accrued interest receivable	31,908	38,807
Derivative assets	0	0
Financial liabilities
Deposits	0	0
Advances from Federal Home Loan Bank	0	0
Long term debt	0	0
Derivative liabilities	0	0
Accrued interest payable	9,681	13,253
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring
Financial assets
Loans held-for-sale, carried at fair value	0	0
Significant Other Observable Inputs (Level 2)
Financial assets
Cash and cash equivalents	0	0
Securities available-for-sale	1,167,687	1,992,500
Federal Home Loan Bank and other bank stock	76,373	68,094
Loans held-for-sale, carried at fair value	2,719	2,566
Loans held-for-sale, carried at lower of cost or fair value	0
Loans receivable, net of ALLL	0	0
Accrued interest receivable	0	0
Derivative assets	4,149	1,534
Financial liabilities
Deposits	0	0
Advances from Federal Home Loan Bank	1,850,016	1,517,761
Long term debt	177,693	174,059
Derivative liabilities	14,055	1,600
Accrued interest payable	0	0
Significant Other Observable Inputs (Level 2) | Recurring
Financial assets
Loans held-for-sale, carried at fair value	2,719	2,140
Significant Other Observable Inputs (Level 2) | Recurring | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Financial liabilities
Loans held-for-sale, carried at fair value		2,100
Significant Other Observable Inputs (Level 2) | Nonrecurring | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Financial liabilities
Loans held-for-sale, carried at fair value		2,100
Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	0	0
Securities available-for-sale	0	0
Federal Home Loan Bank and other bank stock	0	0
Loans held-for-sale, carried at fair value	21,075	25,040
Loans held-for-sale, carried at lower of cost or fair value	578,911
Loans receivable, net of ALLL	6,550,673	7,513,910
Accrued interest receivable	0	0
Derivative assets	0	0
Financial liabilities
Deposits	6,231,819	7,689,324
Advances from Federal Home Loan Bank	0	0
Long term debt	0	0
Derivative liabilities	0	0
Accrued interest payable	0	0
Significant Unobservable Inputs (Level 3) | Recurring
Financial assets
Loans held-for-sale, carried at fair value	21,075	25,040
Significant Unobservable Inputs (Level 3) | Recurring | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Financial liabilities
Loans held-for-sale, carried at fair value		17,400
Significant Unobservable Inputs (Level 3) | Nonrecurring | Discontinued Operations, Disposed of by Sale | Banc Home Loan
Financial liabilities
Loans held-for-sale, carried at fair value		17,400
Carrying Value
Financial assets
Cash and cash equivalents	313,850	391,592
Securities available-for-sale	1,167,687	1,992,500
Federal Home Loan Bank and other bank stock	76,373	68,094
Loans held-for-sale, carried at fair value	23,794	27,606
Loans held-for-sale, carried at lower of cost or fair value	573,926
Loans receivable, net of ALLL	6,660,047	7,638,681
Accrued interest receivable	31,908	38,807
Derivative assets	4,149	1,534
Financial liabilities
Deposits	6,292,290	7,916,644
Advances from Federal Home Loan Bank	1,825,000	1,520,000
Long term debt	173,257	173,174
Derivative liabilities	14,055	1,600
Accrued interest payable	9,681	13,253
Carrying Value | Recurring
Financial assets
Loans held-for-sale, carried at fair value	$ 23,794	$ 27,180

INVESTMENT SECURITIES - Summary

INVESTMENT SECURITIES - Summary of Amortized Cost and Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	$ 1,185,657	$ 2,026,686
Gross Unrealized Gains	228	150
Gross Unrealized Losses	(18,198)	(34,336)
Fair Value	1,167,687	1,992,500
SBA loan pools securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	831	911
Gross Unrealized Gains	22	0
Gross Unrealized Losses	0	(1)
Fair Value	853	910
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	436,049	461,987
Gross Unrealized Gains	196	0
Gross Unrealized Losses	(6,898)	(24,545)
Fair Value	429,347	437,442
Non-agency residential mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	275	418
Gross Unrealized Gains	10	9
Gross Unrealized Losses	0	0
Fair Value	285	427
Non-agency commercial mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost		132,199
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		132,199
Collateralized loan obligations
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	748,502	1,431,171
Gross Unrealized Gains	0	141
Gross Unrealized Losses	(11,300)	(9,790)
Fair Value	$ 737,202	$ 1,421,522

INVESTMENT SECURITIES - Additio

INVESTMENT SECURITIES - Additional Information (Detail)	3 Months Ended					6 Months Ended
	Jun. 30, 2019USD ($)security	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)security	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Jun. 30, 2019USD ($)security	Jun. 30, 2018USD ($)
Debt Securities, Available-for-sale [Line Items]
OTTI on investment securities	$ 0		$ 3,300,000	$ 0		$ 0	$ 0
Gross realized gains on sales and calls of securities available-for-sale	$ 0			$ 278,000		$ 208,000	$ 5,519,000
Securities available for sale portfolio | security	82		145			82
Available for sale securities in unrealized loss position | security	64		118			64
Collateral Pledged
Debt Securities, Available-for-sale [Line Items]
Securities pledged	$ 106,300,000		$ 163,000,000			$ 106,300,000
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Securities sold	279,200,000	$ 132,200,000				644,500,000
Gross realized gains on sales and calls of securities available-for-sale	$ 0	$ 9,000				$ 143,000
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Securities sold					$ 76,800,000
Gross realized gains on sales and calls of securities available-for-sale					$ 4,900,000

INVESTMENT SECURITIES - Proceed

INVESTMENT SECURITIES - Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Gross realized gains on sales and calls of securities available-for-sale	$ 0		$ 278	$ 208	$ 5,519
Gross realized losses on sales and calls of securities available-for-sale	0		0	0	0
Net realized gains on sales and calls of securities available-for-sale	0	$ 208	278	208	5,519
Proceeds from sales and calls of securities available-for-sale	$ 298,156		$ 325,439	$ 820,048	$ 612,956

INVESTMENT SECURITIES - Summa_2

INVESTMENT SECURITIES - Summary of Investment Securities with Unrealized Losses (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Securities available-for-sale:
Less Than 12 Months	$ 497,963	$ 1,377,901
12 Months or Longer	609,915	457,632
Total	1,107,878	1,835,533
Gross Unrealized Losses
Less Than 12 Months	(6,664)	(9,613)
12 Months or Longer	(11,534)	(24,723)
Total	(18,198)	(34,336)
SBA loan pools securities
Securities available-for-sale:
Less Than 12 Months	0	0
12 Months or Longer	0	910
Total	0	910
Gross Unrealized Losses
Less Than 12 Months	0	0
12 Months or Longer	0	(1)
Total	0	(1)
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Securities available-for-sale:
Less Than 12 Months	0	13,494
12 Months or Longer	370,676	423,916
Total	370,676	437,410
Gross Unrealized Losses
Less Than 12 Months	0	(133)
12 Months or Longer	(6,898)	(24,412)
Total	(6,898)	(24,545)
Non-agency residential mortgage-backed securities
Securities available-for-sale:
Less Than 12 Months	0	90
12 Months or Longer	0	16
Total	0	106
Gross Unrealized Losses
Less Than 12 Months	0	0
12 Months or Longer	0	0
Total	0	0
Collateralized loan obligations
Securities available-for-sale:
Less Than 12 Months	497,963	1,364,317
12 Months or Longer	239,239	32,790
Total	737,202	1,397,107
Gross Unrealized Losses
Less Than 12 Months	(6,664)	(9,480)
12 Months or Longer	(4,636)	(310)
Total	$ (11,300)	$ (9,790)

INVESTMENT SECURITIES - Composi

INVESTMENT SECURITIES - Composition, Repricing and Yield Information of Investment Securities Portfolio (Details) $ in Thousands	Jun. 30, 2019USD ($)
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale, one year or less, fair value	$ 737,511
Securities available-for-sale, one year or less, weighted average yield (percent)	3.71%
Securities available-for-sale, more than one year through five years, fair value	$ 3,069
Securities available-for-sale, more than one year through five years, weighted average yield (percent)	2.67%
Securities available-for-sale, more than five years through ten years, fair value	$ 0
Securities available-for-sale, more than five years through ten years, weighted average yield (percent)	0.00%
Securities available-for-sale, more than ten years, fair value	$ 427,107
Securities available-for-sale, more than ten years, weighted average yield (percent)	2.74%
Securities available-for-sale, fair value	$ 1,167,687
Securities available-for-sale, weighted average yield (percent)	3.35%
SBA loan pools securities
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale, one year or less, fair value	$ 0
Securities available-for-sale, one year or less, weighted average yield (percent)	0.00%
Securities available-for-sale, more than one year through five years, fair value	$ 0
Securities available-for-sale, more than one year through five years, weighted average yield (percent)	0.00%
Securities available-for-sale, more than five years through ten years, fair value	$ 0
Securities available-for-sale, more than five years through ten years, weighted average yield (percent)	0.00%
Securities available-for-sale, more than ten years, fair value	$ 853
Securities available-for-sale, more than ten years, weighted average yield (percent)	2.08%
Securities available-for-sale, fair value	$ 853
Securities available-for-sale, weighted average yield (percent)	2.08%
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale, one year or less, fair value	$ 243
Securities available-for-sale, one year or less, weighted average yield (percent)	2.36%
Securities available-for-sale, more than one year through five years, fair value	$ 3,069
Securities available-for-sale, more than one year through five years, weighted average yield (percent)	2.67%
Securities available-for-sale, more than five years through ten years, fair value	$ 0
Securities available-for-sale, more than five years through ten years, weighted average yield (percent)	0.00%
Securities available-for-sale, more than ten years, fair value	$ 426,035
Securities available-for-sale, more than ten years, weighted average yield (percent)	2.74%
Securities available-for-sale, fair value	$ 429,347
Securities available-for-sale, weighted average yield (percent)	2.74%
Non-agency residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale, one year or less, fair value	$ 66
Securities available-for-sale, one year or less, weighted average yield (percent)	3.23%
Securities available-for-sale, more than one year through five years, fair value	$ 0
Securities available-for-sale, more than one year through five years, weighted average yield (percent)	0.00%
Securities available-for-sale, more than five years through ten years, fair value	$ 0
Securities available-for-sale, more than five years through ten years, weighted average yield (percent)	0.00%
Securities available-for-sale, more than ten years, fair value	$ 219
Securities available-for-sale, more than ten years, weighted average yield (percent)	5.74%
Securities available-for-sale, fair value	$ 285
Securities available-for-sale, weighted average yield (percent)	5.16%
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale, one year or less, fair value	$ 737,202
Securities available-for-sale, one year or less, weighted average yield (percent)	3.71%
Securities available-for-sale, more than one year through five years, fair value	$ 0
Securities available-for-sale, more than one year through five years, weighted average yield (percent)	0.00%
Securities available-for-sale, more than five years through ten years, fair value	$ 0
Securities available-for-sale, more than five years through ten years, weighted average yield (percent)	0.00%
Securities available-for-sale, more than ten years, fair value	$ 0
Securities available-for-sale, more than ten years, weighted average yield (percent)	0.00%
Securities available-for-sale, fair value	$ 737,202
Securities available-for-sale, weighted average yield (percent)	3.71%

LOANS AND ALLOWANCE FOR LOAN _3

LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Loans and Leases Receivable (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 6,719,570	$ 7,700,873		$ 7,036,004
Allowance for loan and lease losses	(59,523)	(62,192)	$ (63,885)	(56,678)	$ (54,763)	$ (49,333)
Loans and leases receivable, net	$ 6,660,047	$ 7,638,681
Percentage to total loans and leases (percent)	100.00%	100.00%
NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 6,719,570	$ 7,700,873
Deferred loan costs/(fees) and premiums/(discounts), net	16,100	17,700
Traditional Loans and Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,972,304	6,874,142
Traditional Loans and Leases | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	209,029	203,976
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,951,707	1,944,142		1,742,559
Allowance for loan and lease losses	(21,529)	(18,191)	(18,893)	(16,864)	(17,571)	(14,280)
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	856,497	867,013		793,855
Allowance for loan and lease losses	(6,877)	(6,674)	(6,838)	(5,732)	(5,417)	(4,971)
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,598,978	2,241,246		1,959,965
Allowance for loan and lease losses	(12,625)	(17,970)	(18,898)	(14,630)	(14,219)	(13,265)
Commercial | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	80,929	68,741		78,092
Allowance for loan and lease losses	(3,120)	(1,827)	(3,057)	(1,840)	(1,577)	(1,701)
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	209,029	203,976		211,110
Allowance for loan and lease losses	(3,715)	(3,461)	$ (3,453)	$ (3,419)	$ (3,220)	$ (3,318)
Commercial | Traditional Loans and Leases | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,951,707	1,944,142
Commercial | Traditional Loans and Leases | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	856,497	867,013
Commercial | Traditional Loans and Leases | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,598,978	2,241,246
Commercial | Traditional Loans and Leases | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	80,929	68,741
Commercial | Traditional Loans and Leases | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	209,029	203,976
Consumer | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,961,065	2,305,490
Consumer | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	61,365	70,265
Consumer | NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	747,266	826,731
Consumer | NTM Loans | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	745,019	824,318
Consumer | NTM Loans | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,247	2,413
Consumer | Traditional Loans and Leases | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,216,046	1,481,172
Consumer | Traditional Loans and Leases | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 59,118	$ 67,852

LOANS AND ALLOWANCE FOR LOAN _4

LOANS AND ALLOWANCE FOR LOAN LOSSES - Non Traditional Mortgage Loans Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)loan	Dec. 31, 2018USD ($)loan	Jun. 30, 2018USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 6,719,570	$ 7,700,873	$ 7,036,004
NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	6,719,570	7,700,873
Consumer | NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 747,266	826,731
Consumer | NTM Loans | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest only notes balloon payment period	15 years
Consumer | NTM Loans | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 680,400	753,100
Non-performing loans | Consumer | NTM Loans | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	286	0
Green Loans (HELOC) - first liens | Consumer | NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	745,019	824,318
Green Loans (HELOC) - first liens | Consumer | NTM Loans | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	61,439	67,729
Green Loans (HELOC) - first liens | Consumer | NTM Loans | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	680,361	753,061
Green Loans (HELOC) - first liens | Consumer | NTM Loans | Negative amortization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 3,219	$ 3,528
Number of nonperforming loans with negative amortization | loan	0	0
Green Loans (HELOC) - first liens | Non-performing loans | Consumer | NTM Loans | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 827	$ 0

LOANS AND ALLOWANCE FOR LOAN _5

LOANS AND ALLOWANCE FOR LOAN LOSSES - Non Traditional Mortgages Portfolio (Detail) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019USD ($)loan	Dec. 31, 2018USD ($)loan	Jun. 30, 2018USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 6,719,570	$ 7,700,873	$ 7,036,004
Concentration risk percentage (percent)	100.00%	100.00%
NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 6,719,570	$ 7,700,873
Consumer | NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | loan	539	628
Total loans	$ 747,266	$ 826,731
Consumer | NTM Loans | Loan Portfolio Concentration Risk | Nontraditional Mortgage Loans Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage (percent)	100.00%	100.00%
Consumer | NTM Loans | Loan Portfolio Concentration Risk | Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage (percent)	11.10%	10.70%
Consumer | NTM Loans | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 680,400	$ 753,100
Consumer | NTM Loans | Green Loans (HELOC) - first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | loan	532	618
Total loans	$ 745,019	$ 824,318
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Loan Portfolio Concentration Risk | Nontraditional Mortgage Loans Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage (percent)	99.70%	99.70%
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | loan	78	88
Total loans	$ 61,439	$ 67,729
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Green Loans | Loan Portfolio Concentration Risk | Nontraditional Mortgage Loans Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage (percent)	8.20%	8.20%
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | loan	444	519
Total loans	$ 680,361	$ 753,061
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Interest Only Loans | Loan Portfolio Concentration Risk | Nontraditional Mortgage Loans Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage (percent)	91.00%	91.10%
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Negative amortization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | loan	10	11
Total loans	$ 3,219	$ 3,528
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Negative amortization | Loan Portfolio Concentration Risk | Nontraditional Mortgage Loans Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage (percent)	0.40%	0.40%
Consumer | NTM Loans | Green Loans (HELOC) - second liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | loan	7	10
Total loans	$ 2,247	$ 2,413
Consumer | NTM Loans | Green Loans (HELOC) - second liens | Loan Portfolio Concentration Risk | Nontraditional Mortgage Loans Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage (percent)	0.30%	0.30%
Consumer | NTM Loans | Green Loans (HELOC) - second liens | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | loan	7	10
Total loans	$ 2,247	$ 2,413
Consumer | NTM Loans | Green Loans (HELOC) - second liens | Green Loans | Loan Portfolio Concentration Risk | Nontraditional Mortgage Loans Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage (percent)	0.30%	0.30%

LOANS AND ALLOWANCE FOR LOAN _6

LOANS AND ALLOWANCE FOR LOAN LOSSES - Allowance for Loan and Lease Losses Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-off amount	$ 2,451	$ 950		$ 3,514	$ 15,589
Total loans	6,719,570	$ 7,036,004		6,719,570	$ 7,036,004	$ 7,700,873
Line of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-off amount			$ 13,900
Total loans			$ 15,000
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded loan commitments	$ 4,300			$ 4,300		$ 4,600

LOANS AND ALLOWANCE FOR LOAN _7

LOANS AND ALLOWANCE FOR LOAN LOSSES - Allowance for Loan and Lease Losses (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 63,885	$ 62,192	$ 54,763	$ 49,333	$ 62,192	$ 49,333
Loans charged off	(2,451)		(950)		(3,514)	(15,589)
Recoveries of loans and leases previously charged off	76		212		320	782
Net charge-offs	(2,375)		(738)		(3,194)	(14,807)
(Reversal of) provision for loan losses	(1,987)	2,512	2,653		525	22,152
Balance at end of period	$ 59,523	$ 63,885	$ 56,678	$ 54,763	$ 59,523	$ 56,678

LOANS AND ALLOWANCE FOR LOAN _8

LOANS AND ALLOWANCE FOR LOAN LOSSES - Allowance for Loan and Lease Losses and Recorded Investment Excluding Accrued Interest in Loans (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 63,885	$ 62,192	$ 54,763	$ 49,333	$ 62,192	$ 49,333
Charge-offs	(2,451)		(950)		(3,514)	(15,589)
Recoveries	76		212		320	782
Net charge-offs	(2,375)		(738)		(3,194)	(14,807)
(Reversal of) provision for loan losses	(1,987)	2,512	2,653		525	22,152
Balance at end of period	59,523	63,885	56,678	54,763	59,523	56,678
Individually evaluated for impairment							$ 2,824		$ 1,188
Collectively evaluated for impairment							56,699		55,490
Total ending ALLL balance	59,523	62,192	56,678	49,333	62,192	49,333	59,523	$ 62,192	56,678
Loans:
Individually evaluated for impairment							48,400		27,365
Collectively evaluated for impairment							6,671,170		7,008,639
Total ending loan balances							6,719,570	7,700,873	7,036,004
Commercial | Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	18,893	18,191	17,571	14,280	18,191	14,280
Charge-offs	(2,022)		(276)		(2,115)	(347)
Recoveries	11		36		44	97
Net charge-offs	(2,011)		(240)		(2,071)	(250)
(Reversal of) provision for loan losses	4,647		(467)		5,409	2,834
Balance at end of period	21,529	18,893	16,864	17,571	21,529	16,864
Individually evaluated for impairment							1,239		595
Collectively evaluated for impairment							20,290		16,269
Total ending ALLL balance	18,893	18,893	17,571	17,571	18,191	14,280	21,529	18,191	16,864
Loans:
Individually evaluated for impairment							20,429		5,829
Collectively evaluated for impairment							1,931,278		1,736,730
Total ending loan balances							1,951,707	1,944,142	1,742,559
Commercial | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	6,838	6,674	5,417	4,971	6,674	4,971
Charge-offs	0		0		0	0
Recoveries	0		0		0	0
Net charge-offs	0		0		0	0
(Reversal of) provision for loan losses	39		315		203	761
Balance at end of period	6,877	6,838	5,732	5,417	6,877	5,732
Individually evaluated for impairment							0		0
Collectively evaluated for impairment							6,877		5,732
Total ending ALLL balance	6,838	6,838	5,417	5,417	6,877	4,971	6,877	6,674	5,732
Loans:
Individually evaluated for impairment							0		0
Collectively evaluated for impairment							856,497		793,855
Total ending loan balances							856,497	867,013	793,855
Commercial | Multifamily
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	18,898	17,970	14,219	13,265	17,970	13,265
Charge-offs	(6)		(8)		(6)	(8)
Recoveries	0		0		0	0
Net charge-offs	(6)		(8)		(6)	(8)
(Reversal of) provision for loan losses	(6,267)		419		(5,339)	1,373
Balance at end of period	12,625	18,898	14,630	14,219	12,625	14,630
Individually evaluated for impairment							0		0
Collectively evaluated for impairment							12,625		14,630
Total ending ALLL balance	18,898	18,898	14,219	14,219	17,970	14,630	12,625	17,970	14,630
Loans:
Individually evaluated for impairment							0		0
Collectively evaluated for impairment							1,598,978		1,959,965
Total ending loan balances							1,598,978	2,241,246	1,959,965
Commercial | SBA
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	3,057	1,827	1,577	1,701	1,827	1,701
Charge-offs	8		(302)		(348)	(683)
Recoveries	60		167		101	232
Net charge-offs	68		(135)		(247)	(451)
(Reversal of) provision for loan losses	(5)		398		1,540	590
Balance at end of period	3,120	3,057	1,840	1,577	3,120	1,840
Individually evaluated for impairment							1,563		124
Collectively evaluated for impairment							1,557		1,716
Total ending ALLL balance	3,057	3,057	1,577	1,577	1,827	1,840	3,120	1,827	1,840
Loans:
Individually evaluated for impairment							3,262		646
Collectively evaluated for impairment							77,667		77,446
Total ending loan balances							80,929	68,741	78,092
Commercial | Construction
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	3,453	3,461	3,220	3,318	3,461	3,318
Charge-offs	0		0		0	0
Recoveries	0		0		0	0
Net charge-offs	0		0		0	0
(Reversal of) provision for loan losses	262		199		254	101
Balance at end of period	3,715	3,453	3,419	3,220	3,715	3,419
Individually evaluated for impairment							0		0
Collectively evaluated for impairment							3,715		3,419
Total ending ALLL balance	3,453	3,453	3,220	3,220	3,715	3,318	3,715	3,461	3,419
Loans:
Individually evaluated for impairment							2,519		0
Collectively evaluated for impairment							206,510		211,110
Total ending loan balances							209,029	203,976	211,110
Commercial | Lease financing
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	0	0	0	0	0	0
Charge-offs	0		0		0	0
Recoveries	3		5		6	9
Net charge-offs	3		5		6	9
(Reversal of) provision for loan losses	(3)		(5)		(6)	(9)
Balance at end of period	0	0	0	0	0	0
Individually evaluated for impairment							0		0
Collectively evaluated for impairment							0		0
Total ending ALLL balance	0	0	0	0	0	0	0	0	0
Loans:
Individually evaluated for impairment							0		0
Collectively evaluated for impairment							0		0
Total ending loan balances							0		0
Consumer | Single Family Residential Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	12,142	13,128	11,969	10,996	13,128	10,996
Charge-offs	(425)		(364)		(951)	(479)
Recoveries	0		0		150	436
Net charge-offs	(425)		(364)		(801)	(43)
(Reversal of) provision for loan losses	(645)		1,631		(1,255)	2,283
Balance at end of period	11,072	12,142	13,236	11,969	11,072	13,236
Individually evaluated for impairment							0		461
Collectively evaluated for impairment							11,072		12,775
Total ending ALLL balance	12,142	12,142	11,969	11,969	11,072	10,996	11,072	13,128	13,236
Loans:
Individually evaluated for impairment							21,021		20,140
Collectively evaluated for impairment							1,940,044		2,154,043
Total ending loan balances							1,961,065		2,174,183
Consumer | Other Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	604	941	790	802	941	802
Charge-offs	(6)		0		(94)	(14,072)
Recoveries	2		4		19	8
Net charge-offs	(4)		4		(75)	(14,064)
(Reversal of) provision for loan losses	(15)		163		(281)	14,219
Balance at end of period	585	604	957	790	585	957
Individually evaluated for impairment							22		8
Collectively evaluated for impairment							563		949
Total ending ALLL balance	$ 604	$ 604	$ 790	$ 790	$ 941	$ 802	585	$ 941	957
Loans:
Individually evaluated for impairment							1,169		750
Collectively evaluated for impairment							60,196		75,490
Total ending loan balances							$ 61,365		$ 76,240

LOANS AND ALLOWANCE FOR LOAN _9

LOANS AND ALLOWANCE FOR LOAN LOSSES - Loans and Leases Individually Evaluated for Impairment by Class of Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Unpaid Principal Balance
Total	$ 48,532		$ 48,532		$ 27,027
Recorded Investment
Total	48,400		48,400		26,945
Allowance for Loan and Lease Losses	2,824		2,824		829
Average Recorded Investment	48,879	$ 27,588	40,519	$ 26,879
Interest Income Recognized	321	62	386	125
Cash Basis Interest Recognized	309	51	365	105
Commercial | Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded	18,434		18,434		5,491
With an allowance recorded	2,025		2,025		0
Recorded Investment
With no related allowance recorded	18,404		18,404		5,455
With an allowance recorded	2,025		2,025		0
Allowance for Loan and Lease Losses	1,239		1,239		0
Average Recorded Investment	20,794	5,900	12,921	5,616
Interest Income Recognized	255	1	255	4
Cash Basis Interest Recognized	254	1	254	4
Commercial | Commercial real estate
Unpaid Principal Balance
With no related allowance recorded	0		0		0
Recorded Investment
With no related allowance recorded	0		0		0
Average Recorded Investment	0		289
Interest Income Recognized	0		0
Cash Basis Interest Recognized	0		0
Commercial | SBA
Unpaid Principal Balance
With no related allowance recorded	1,320		1,320		1,668
With an allowance recorded	2,107		2,107		823
Recorded Investment
With no related allowance recorded	1,251		1,251		1,588
With an allowance recorded	2,011		2,011		788
Allowance for Loan and Lease Losses	1,563		1,563		562
Average Recorded Investment	3,297	654	3,571	514
Interest Income Recognized	4	0	8	0
Cash Basis Interest Recognized	4	0	8	0
Commercial | Construction
Unpaid Principal Balance
With no related allowance recorded	2,519		2,519		0
Recorded Investment
With no related allowance recorded	2,519		2,519		0
Average Recorded Investment	2,519		2,519
Interest Income Recognized	0		0
Cash Basis Interest Recognized	0		0
Consumer | Single family residential mortgage
Unpaid Principal Balance
With no related allowance recorded	20,938		20,938		12,115
With an allowance recorded	0		0		5,993
Recorded Investment
With no related allowance recorded	21,021		21,021		12,161
With an allowance recorded	0		0		6,032
Allowance for Loan and Lease Losses	0		0		161
Average Recorded Investment	21,092	20,274	20,208	19,994
Interest Income Recognized	58	58	116	115
Cash Basis Interest Recognized	48	47	97	96
Consumer | Other consumer
Unpaid Principal Balance
With no related allowance recorded	1,167		1,167		469
With an allowance recorded	22		22		468
Recorded Investment
With no related allowance recorded	1,147		1,147		469
With an allowance recorded	22		22		452
Allowance for Loan and Lease Losses	22		22		$ 106
Average Recorded Investment	1,177	760	1,011	755
Interest Income Recognized	4	3	7	6
Cash Basis Interest Recognized	$ 3	$ 3	$ 6	$ 5

LOANS AND ALLOWANCE FOR LOAN_10

LOANS AND ALLOWANCE FOR LOAN LOSSES - Aging of Recorded Investment in Past Due Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 52,210	$ 40,530
Current	6,667,360	7,660,343
Total ending loan balances	6,719,570	7,700,873	$ 7,036,004
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	29,928	19,140
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	5,010	7,544
Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	17,272	13,846
NTM Loans
Financing Receivable, Past Due [Line Items]
Total ending loan balances	6,719,570	7,700,873
Traditional Loans and Leases
Financing Receivable, Past Due [Line Items]
Total Past Due	31,423	32,483
Current	5,940,881	6,841,659
Total ending loan balances	5,972,304	6,874,142
Traditional Loans and Leases | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	9,968	11,710
Traditional Loans and Leases | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	5,010	6,927
Traditional Loans and Leases | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	16,445	13,846
Traditional Loans and Leases | Construction
Financing Receivable, Past Due [Line Items]
Total ending loan balances	209,029	203,976
Commercial | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total ending loan balances	1,951,707	1,944,142	1,742,559
Commercial | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total ending loan balances	856,497	867,013	793,855
Commercial | Multifamily
Financing Receivable, Past Due [Line Items]
Total ending loan balances	1,598,978	2,241,246	1,959,965
Commercial | SBA
Financing Receivable, Past Due [Line Items]
Total ending loan balances	80,929	68,741	78,092
Commercial | Construction
Financing Receivable, Past Due [Line Items]
Total ending loan balances	209,029	203,976	$ 211,110
Commercial | Traditional Loans and Leases | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Past Due	6,077	5,286
Current	1,945,630	1,938,856
Total ending loan balances	1,951,707	1,944,142
Commercial | Traditional Loans and Leases | Commercial and industrial | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,063	350
Commercial | Traditional Loans and Leases | Commercial and industrial | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	997	1,596
Commercial | Traditional Loans and Leases | Commercial and industrial | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	4,017	3,340
Commercial | Traditional Loans and Leases | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	0	582
Current	856,497	866,431
Total ending loan balances	856,497	867,013
Commercial | Traditional Loans and Leases | Commercial real estate | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Commercial real estate | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	582
Commercial | Traditional Loans and Leases | Commercial real estate | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Multifamily
Financing Receivable, Past Due [Line Items]
Total Past Due	0	356
Current	1,598,978	2,240,890
Total ending loan balances	1,598,978	2,241,246
Commercial | Traditional Loans and Leases | Multifamily | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	356
Commercial | Traditional Loans and Leases | Multifamily | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Multifamily | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | SBA
Financing Receivable, Past Due [Line Items]
Total Past Due	3,689	1,490
Current	77,240	67,251
Total ending loan balances	80,929	68,741
Commercial | Traditional Loans and Leases | SBA | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	944	551
Commercial | Traditional Loans and Leases | SBA | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	73	77
Commercial | Traditional Loans and Leases | SBA | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,672	862
Commercial | Traditional Loans and Leases | Construction
Financing Receivable, Past Due [Line Items]
Total Past Due	2,519	939
Current	206,510	203,037
Total ending loan balances	209,029	203,976
Commercial | Traditional Loans and Leases | Construction | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Construction | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	939
Commercial | Traditional Loans and Leases | Construction | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,519	0
Consumer | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Total ending loan balances	1,961,065	2,305,490
Consumer | Other consumer
Financing Receivable, Past Due [Line Items]
Total ending loan balances	61,365	70,265
Consumer | NTM Loans
Financing Receivable, Past Due [Line Items]
Total Past Due	20,787	8,047
Current	726,479	818,684
Total ending loan balances	747,266	826,731
Consumer | NTM Loans | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	19,960	7,430
Consumer | NTM Loans | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	617
Consumer | NTM Loans | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	827	0
Consumer | NTM Loans | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Total Past Due	20,787	8,047
Current	724,232	816,271
Total ending loan balances	745,019	824,318
Consumer | NTM Loans | Single family residential mortgage | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	19,960	7,430
Consumer | NTM Loans | Single family residential mortgage | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	617
Consumer | NTM Loans | Single family residential mortgage | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	827	0
Consumer | NTM Loans | Other consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	2,247	2,413
Total ending loan balances	2,247	2,413
Consumer | NTM Loans | Other consumer | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer | NTM Loans | Other consumer | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer | NTM Loans | Other consumer | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer | Traditional Loans and Leases | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Total Past Due	17,775	19,679
Current	1,198,271	1,461,493
Total ending loan balances	1,216,046	1,481,172
Consumer | Traditional Loans and Leases | Single family residential mortgage | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	7,447	7,321
Consumer | Traditional Loans and Leases | Single family residential mortgage | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,645	3,160
Consumer | Traditional Loans and Leases | Single family residential mortgage | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	6,683	9,198
Consumer | Traditional Loans and Leases | Other consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	1,363	4,151
Current	57,755	63,701
Total ending loan balances	59,118	67,852
Consumer | Traditional Loans and Leases | Other consumer | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	514	3,132
Consumer | Traditional Loans and Leases | Other consumer | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	295	573
Consumer | Traditional Loans and Leases | Other consumer | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 554	$ 446

LOANS AND ALLOWANCE FOR LOAN_11

LOANS AND ALLOWANCE FOR LOAN LOSSES - Composition of Nonaccrual Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	$ 28,499	$ 21,585
NTM Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	1,113	0
Traditional Loans and Leases
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	27,386	21,585
Commercial | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	5,716	5,455
Commercial | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial | SBA
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	3,440	2,574
Commercial | Construction
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	2,519	0
Commercial | NTM Loans | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial | NTM Loans | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial | NTM Loans | SBA
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial | NTM Loans | Construction
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial | Traditional Loans and Leases | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	5,716	5,455
Commercial | Traditional Loans and Leases | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial | Traditional Loans and Leases | SBA
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	3,440	2,574
Commercial | Traditional Loans and Leases | Construction
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	2,519	0
Consumer | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	15,949	12,929
Consumer | Other consumer
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	875	627
Consumer | NTM Loans | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	1,113	0
Consumer | NTM Loans | Other consumer
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Consumer | Traditional Loans and Leases | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	14,836	12,929
Consumer | Traditional Loans and Leases | Other consumer
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	$ 875	$ 627

LOANS AND ALLOWANCE FOR LOAN_12

LOANS AND ALLOWANCE FOR LOAN LOSSES - Nonaccrual Loans and Leases Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Loans 90 days past due and still accruing	$ 275	$ 470
Consumer | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Loans in process of foreclosure	$ 8,800	$ 5,100

LOANS AND ALLOWANCE FOR LOAN_13

LOANS AND ALLOWANCE FOR LOAN LOSSES - Components of Troubled Debt Restructured Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	$ 22,673	$ 8,021
NTM Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	2,947	2,962
Traditional Loans and Leases
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	19,726	5,059
Commercial | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	16,250	2,276
Commercial | SBA
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	1,057	187
Commercial | NTM Loans | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	0	0
Commercial | NTM Loans | SBA
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	0	0
Commercial | Traditional Loans and Leases | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	16,250	2,276
Commercial | Traditional Loans and Leases | SBA
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	1,057	187
Consumer | Single family residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	5,072	5,264
Consumer | Other consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	294	294
Consumer | NTM Loans | Single family residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	2,653	2,668
Consumer | NTM Loans | Other consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	294	294
Consumer | Traditional Loans and Leases | Single family residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	2,419	2,596
Consumer | Traditional Loans and Leases | Other consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loans and leases	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN_14

LOANS AND ALLOWANCE FOR LOAN LOSSES - Loans and Leases by Class Modified as Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)loan	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)loan
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	12	0	12	2
Pre- Modification Outstanding Recorded Investment		$ 0		$ 171
Post-Modification Outstanding Recorded Investment	$ 17,889	$ 0	$ 17,889	$ 163
Commercial | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	10	0	10	2
Pre- Modification Outstanding Recorded Investment	$ 17,339	$ 0	$ 17,339	$ 171
Post-Modification Outstanding Recorded Investment	$ 17,020	$ 0	$ 17,020	$ 163
Commercial | SBA
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2		2
Pre- Modification Outstanding Recorded Investment	$ 3,214		$ 3,214
Post-Modification Outstanding Recorded Investment	$ 869		$ 869
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	12		12
Pre- Modification Outstanding Recorded Investment	$ 20,553		$ 20,553
Post-Modification Outstanding Recorded Investment	$ 17,889		$ 17,889
Consumer | Single family residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0		0
Pre- Modification Outstanding Recorded Investment	$ 0		$ 0
Post-Modification Outstanding Recorded Investment	$ 0		$ 0

LOANS AND ALLOWANCE FOR LOAN_15

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of TDR Modification Type (Details) - Commercial $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)loan	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	12	0	12	2
Post-Modification Outstanding Recorded Investment | $	$ 17,889	$ 0	$ 17,889	$ 163
Change in Principal Payments and Interest Rates
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	12	0	12	0
Post-Modification Outstanding Recorded Investment | $	$ 17,889	$ 0	$ 17,889	$ 0
Change in Principal Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	0	0	2
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 0	$ 0	$ 163
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	10	0	10	2
Post-Modification Outstanding Recorded Investment | $	$ 17,020	$ 0	$ 17,020	$ 163
Commercial and industrial | Change in Principal Payments and Interest Rates
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	10		10	0
Post-Modification Outstanding Recorded Investment | $	$ 17,020		$ 17,020	$ 0
Commercial and industrial | Change in Principal Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0		0	2
Post-Modification Outstanding Recorded Investment | $	$ 0		$ 0	$ 163
SBA
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2		2
Post-Modification Outstanding Recorded Investment | $	$ 869		$ 869
SBA | Change in Principal Payments and Interest Rates
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2		2
Post-Modification Outstanding Recorded Investment | $	$ 869		$ 869
SBA | Change in Principal Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0		0
Post-Modification Outstanding Recorded Investment | $	$ 0		$ 0

LOANS AND ALLOWANCE FOR LOAN_16

LOANS AND ALLOWANCE FOR LOAN LOSSES - Troubled Debt Restructurings Additional Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)loan	Jun. 30, 2018loan	Dec. 31, 2018USD ($)
Receivables [Abstract]
Accruing TDRs	$ 20.2		$ 5.7
Nonaccruing TDRs	$ 2.4		$ 2.3
Number of loans modified that had payments default during the period | loan	0	0

LOANS AND ALLOWANCE FOR LOAN_17

LOANS AND ALLOWANCE FOR LOAN LOSSES - Credit Quality Indicators Additional Information (Details)	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Loans delinquent	60 days

LOANS AND ALLOWANCE FOR LOAN_18

LOANS AND ALLOWANCE FOR LOAN LOSSES - Risk Categories for Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 6,719,570	$ 7,700,873	$ 7,036,004
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	6,502,365	7,543,176
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	109,194	76,945
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	106,692	79,898
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,319	854
NTM Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	6,719,570	7,700,873
Traditional Loans and Leases
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	5,972,304	6,874,142
Traditional Loans and Leases | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	5,770,273	6,729,707
Traditional Loans and Leases | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	96,443	65,979
Traditional Loans and Leases | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	104,269	77,602
Traditional Loans and Leases | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,319	854
Traditional Loans and Leases | Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	209,029	203,976
Consumer | Single family residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,961,065	2,305,490
Consumer | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	61,365	70,265
Consumer | NTM Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	747,266	826,731
Consumer | NTM Loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	732,092	813,469
Consumer | NTM Loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	12,751	10,966
Consumer | NTM Loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	2,423	2,296
Consumer | NTM Loans | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Consumer | NTM Loans | Single family residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	745,019	824,318
Consumer | NTM Loans | Single family residential mortgage | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	729,845	811,056
Consumer | NTM Loans | Single family residential mortgage | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	12,751	10,966
Consumer | NTM Loans | Single family residential mortgage | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	2,423	2,296
Consumer | NTM Loans | Single family residential mortgage | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Consumer | NTM Loans | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	2,247	2,413
Consumer | NTM Loans | Other consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	2,247	2,413
Consumer | NTM Loans | Other consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Consumer | NTM Loans | Other consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Consumer | NTM Loans | Other consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Consumer | Traditional Loans and Leases | Single family residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,216,046	1,481,172
Consumer | Traditional Loans and Leases | Single family residential mortgage | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,193,532	1,461,721
Consumer | Traditional Loans and Leases | Single family residential mortgage | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	6,017	2,602
Consumer | Traditional Loans and Leases | Single family residential mortgage | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	15,980	16,849
Consumer | Traditional Loans and Leases | Single family residential mortgage | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	517	0
Consumer | Traditional Loans and Leases | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	59,118	67,852
Consumer | Traditional Loans and Leases | Other consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	57,177	66,228
Consumer | Traditional Loans and Leases | Other consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	471	979
Consumer | Traditional Loans and Leases | Other consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,470	645
Consumer | Traditional Loans and Leases | Other consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Commercial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,951,707	1,944,142	1,742,559
Commercial | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	856,497	867,013	793,855
Commercial | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,598,978	2,241,246	1,959,965
Commercial | SBA
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	80,929	68,741	78,092
Commercial | Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	209,029	203,976	$ 211,110
Commercial | Traditional Loans and Leases | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,951,707	1,944,142
Commercial | Traditional Loans and Leases | Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,844,472	1,859,569
Commercial | Traditional Loans and Leases | Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	50,702	41,302
Commercial | Traditional Loans and Leases | Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	56,533	43,271
Commercial | Traditional Loans and Leases | Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Commercial | Traditional Loans and Leases | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	856,497	867,013
Commercial | Traditional Loans and Leases | Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	832,173	851,604
Commercial | Traditional Loans and Leases | Commercial real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	14,519	11,376
Commercial | Traditional Loans and Leases | Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	9,805	4,033
Commercial | Traditional Loans and Leases | Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Commercial | Traditional Loans and Leases | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,598,978	2,241,246
Commercial | Traditional Loans and Leases | Multifamily | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,581,629	2,239,301
Commercial | Traditional Loans and Leases | Multifamily | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	11,488	0
Commercial | Traditional Loans and Leases | Multifamily | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	5,861	1,945
Commercial | Traditional Loans and Leases | Multifamily | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Commercial | Traditional Loans and Leases | SBA
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	80,929	68,741
Commercial | Traditional Loans and Leases | SBA | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	66,448	53,433
Commercial | Traditional Loans and Leases | SBA | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	4,074	6,114
Commercial | Traditional Loans and Leases | SBA | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	9,605	8,340
Commercial | Traditional Loans and Leases | SBA | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	802	854
Commercial | Traditional Loans and Leases | Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	209,029	203,976
Commercial | Traditional Loans and Leases | Construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	194,842	197,851
Commercial | Traditional Loans and Leases | Construction | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	9,172	3,606
Commercial | Traditional Loans and Leases | Construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	5,015	2,519
Commercial | Traditional Loans and Leases | Construction | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN_19

LOANS AND ALLOWANCE FOR LOAN LOSSES - Purchases, Sales, and Transfers (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale			$ 0
Transfers (to) Held-For-Sale			(205,278)
Loss on interest rate swaps	$ 9,600			$ 9,583	$ 0
Net gain on sale of loans	2,826	$ 1,553	821	4,379	780
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale	0			0
Transfers (to) Held-For-Sale	(573)			(573)
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale	0		0	0	0
Transfers (to) Held-For-Sale	(752,087)		(71,449)	(752,087)	(71,449)
Loans sold	178,200			178,200
Net gain on sale of loans	2,900			2,900
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale	0			0	0
Transfers (to) Held-For-Sale	(883,975)			(1,127,339)	(211,824)
Consumer | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale	0		0	0	0
Transfers (to) Held-For-Sale	(131,315)		(133,829)	(374,679)	(136,013)
Loans sold	131,500			374,700
Net gain on sale of loans	125			1,800
Consumer | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale			0		0
Transfers (to) Held-For-Sale			$ 0		$ (4,362)
Interest rate swap
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notional value	$ 543,400			543,400
Freddie Mac | Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers (to) Held-For-Sale				$ (573,900)
Weighted average coupon (percent)				3.79%
Weighted average term to reset				3 years 6 months

LEASES - Narrative (Details)

LEASES - Narrative (Details)	6 Months Ended
	Jun. 30, 2019
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 month
Lease extension period, up to	3 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	20 years
Lease extension period, up to	5 years

LEASES - Components of Lease Ex

LEASES - Components of Lease Expense and Supplemental Cash Flow information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Lessee, Lease, Description [Line Items]
Operating Lease Expense	$ 1,720	$ 3,496
Variable Lease Expense	89	178
Sublease Income	(15)	(250)
Total Lease Expense	1,794	3,424
Operating leases cash paid for amounts included in the measurement of lease liabilities for operating leases:	1,738	3,619
Operating lease right of use assets recognized	1,055	4,089
ASU 2016-02
Lessee, Lease, Description [Line Items]
Operating lease right of use assets recognized	$ 0	$ 23,332

LEASES - Supplemental Balance S

LEASES - Supplemental Balance Sheet information (Details) $ in Thousands	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 24,118
Operating lease liabilities	$ 25,457
Operating lease weighted-average remaining lease term (in years)	6 years 7 months 20 days
Operating lease weighted-average discount rate (percent)	2.88%

LEASES - Maturities of Lease Li

LEASES - Maturities of Lease Liabilities (Details) $ in Thousands	Jun. 30, 2019USD ($)
Leases [Abstract]
Remainder of 2019	$ 3,325
2020	6,590
2021	4,827
2022	3,250
2023	2,440
2024	1,568
Thereafter	6,338
Total lease payments	28,338
Less: present value discount	(2,881)
Total Lease Liability	$ 25,457

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Additional Information (Detail) - USD ($)	Aug. 31, 2018	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Goodwill		$ 37,144,000			$ 37,144,000		$ 37,144,000
Goodwill write-off	$ 0
Aggregate amortization expense		$ 621,000	$ 620,000	$ 827,000	$ 1,241,000	$ 1,670,000
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period					5 years 1 month 6 days
Core deposit intangibles | Minimum
Finite-Lived Intangible Assets [Line Items]
Amortization period of other intangible assets					4 years
Core deposit intangibles | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization period of other intangible assets					10 years

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Other Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Net Carrying Value	$ 5,105
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	30,904	$ 30,904
Accumulated Amortization	25,799	24,558
Net Carrying Value	$ 5,105	$ 6,346

GOODWILL AND OTHER INTANGIBLE_5

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Estimated Future Amortization Expense (Detail) $ in Thousands	Jun. 30, 2019USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2019	$ 954
2019	1,518
2021	1,082
2022	799
2023	517
2024	235
Net Carrying Value	$ 5,105

FEDERAL HOME LOAN BANK ADVANC_3

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS - Additional Information (Detail) - USD ($)	Feb. 14, 2019	Jun. 30, 2019	Dec. 31, 2018
Line of Credit Facility [Line Items]
Advances from FHLB collateralized		$ 3,710,000,000	$ 4,050,000,000
Securities sold under repurchase agreements		0	0
Line of Credit | Unsecured Federal Funds Line of Credit
Line of Credit Facility [Line Items]
Line of credit facility		185,000,000
Other borrowings		0
Line of Credit | Line of Credit Maturing February 13, 2020
Line of Credit Facility [Line Items]
Line of credit facility	$ 15,000,000
Other borrowings		0
Line of Credit | Line of Credit Maturing February 13, 2020 | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.00%
Federal Reserve Bank Advances
Line of Credit Facility [Line Items]
Line of credit facility		21,000,000
Other borrowings		0
Collateralized loan obligations | Federal Reserve Bank Advances
Line of Credit Facility [Line Items]
Collateral on line of credit facility		28,300,000
Federal Home Loan Bank of San Francisco
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB stock		49,300,000	$ 41,000,000
Amount of additional available borrowing		$ 942,600,000

FEDERAL HOME LOAN BANK ADVANC_4

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS - Summary of Advances from the FHLB (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fixed rate:
Outstanding balance	$ 1,180,000	$ 805,000
Variable rate:
Outstanding balance	$ 645,000	$ 715,000
Weighted average interest rate (percent)	2.52%	2.56%
Minimum
Fixed rate:
Interest rate (percent)	1.61%	1.61%
Maximum
Fixed rate:
Interest rate (percent)	3.32%	3.32%
Weighted average (percent)
Fixed rate:
Interest rate (percent)	2.51%	2.58%

LONG-TERM DEBT - Summary of Lon

LONG-TERM DEBT - Summary of Long-Term Debt (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018	Apr. 06, 2015
Debt Instrument [Line Items]
Par Value	$ 175,000,000	$ 175,000,000
Unamortized Debt Issuance Cost and Discount	$ (1,743,000)	(1,826,000)
Senior Notes | 5.25% Senior Notes Due April 15, 2025
Debt Instrument [Line Items]
Stated interest rate	5.25%		5.25%
Par Value	$ 175,000,000	175,000,000	$ 175,000,000
Unamortized Debt Issuance Cost and Discount	$ (1,743,000)	$ (1,826,000)

LONG-TERM DEBT - Additional Inf

LONG-TERM DEBT - Additional Information (Detail) - USD ($)	Apr. 06, 2015	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Par Value		$ 175,000,000	$ 175,000,000
Senior Notes
Debt Instrument [Line Items]
Redemption period		90 days
Minimum redemption period notice required		30 days
Maximum redemption period notice required		60 days
Redemption price, percentage		100.00%
Senior Notes | 5.25% Senior Notes Due April 15, 2025
Debt Instrument [Line Items]
Par Value	$ 175,000,000	$ 175,000,000	$ 175,000,000
Stated interest rate	5.25%	5.25%
Net proceeds from issuance of long term debt	$ 172,800,000

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 4,300,000	$ 2,100,000	$ 7,000,000	$ (3,700,000)
Effective tax rate (percent)	20.60%	12.60%	22.90%	(18.60%)
Tax credit	$ 1,700,000	$ 1,900,000	$ 1,700,000	$ 9,200,000
Valuation allowance	0		0		$ 0
Net deferred tax asset	42,800,000		42,800,000		49,400,000
Valuation Allowance [Line Items]
Unrecognized tax benefits	1,300,000		1,300,000		1,200,000
Unrecognized tax benefits that would impact the effective tax rate	1,100,000		1,100,000
Accrued interest or penalties	$ 0		0		$ 0
Year-to-date temporary book-tax differences
Valuation Allowance [Line Items]
Increase (decrease) in deferred tax asset			1,800,000
Unrealized gain on securities available-for-sale
Valuation Allowance [Line Items]
Increase (decrease) in deferred tax asset			$ 4,800,000

DERIVATIVE INSTRUMENTS - Amount

DERIVATIVE INSTRUMENTS - Amount and Market Value of Mortgage Banking Derivatives (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Loss on interest rate swaps	$ 9,600	$ 9,583	$ 0
Notional Amount Assets	131,330	131,330		$ 103,812
Derivatives asset, fair values	4,149	4,149		1,534
Notional Amount Liability	674,723	674,723		103,812
Derivatives liability, fair values	14,055	14,055		1,600
Interest rate swaps and caps on loans
Derivatives, Fair Value [Line Items]
Notional Amount Assets	130,121	130,121		103,812
Derivatives asset, fair values	4,119	4,119		1,534
Notional Amount Liability	673,514	673,514		103,812
Derivatives liability, fair values	14,041	14,041		1,600
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Notional Amount Assets	1,209	1,209		0
Derivatives asset, fair values	30	30		0
Notional Amount Liability	1,209	1,209		0
Derivatives liability, fair values	$ 14	$ 14		$ 0

EMPLOYEE STOCK COMPENSATION - A

EMPLOYEE STOCK COMPENSATION - Additional Information (Detail) - shares	Aug. 21, 2012	Jun. 30, 2019	Jun. 30, 2019
Stock option awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Award expiration period			7 years
Stock option awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			5 years
Award expiration period			10 years
Restricted stock awards and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		587,804	723,398
Vested (in shares)		201,816	215,257
Restricted stock awards and restricted stock units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			1 year
Restricted stock awards and restricted stock units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			5 years
Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		151,395	151,395
Vested (in shares)		37,572	37,572
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period	10 years
2018 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares authorized for grant		4,417,882	4,417,882
Common stock available under new plan (in shares)		3,644,293	3,644,293

EMPLOYEE STOCK COMPENSATION - S

EMPLOYEE STOCK COMPENSATION - Share Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 1,497	$ 1,788	$ 2,350	$ 3,875
Related tax benefits	440	524	691	1,136
Unrecognized Expense	12,837		$ 12,837
Weighted-Average Remaining Expected Recognition Period			2 years 6 months
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	(24)	80	$ (16)	113
Unrecognized Expense	11		$ 11
Weighted-Average Remaining Expected Recognition Period			1 year
Restricted stock awards and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	1,521	$ 1,708	$ 2,366	$ 3,762
Unrecognized Expense	$ 12,826		$ 12,826
Weighted-Average Remaining Expected Recognition Period			2 years 6 months

EMPLOYEE STOCK COMPENSATION - O

EMPLOYEE STOCK COMPENSATION - Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Number of Shares
Outstanding at beginning of period (in shares)	170,973	186,973	186,973
Exercised (shares)			(1,836)
Forfeited (in shares)	(33,616)		(49,616)
Outstanding at end of period (in shares)	135,521	170,973	135,521	186,973
Exercisable at end of period (in shares)	127,673		127,673
Weighted-Average Exercise Price Per Share
Outstanding at beginning of period (in dollars per share)	$ 13.56	$ 13.54	$ 13.54
Exercised (in dollars per share)			10.90
Forfeited (in dollars per share)	13.37		13.34
Outstanding at end of period (in dollars per share)	13.65	$ 13.56	13.65	$ 13.54
Exercisable at end of period (in dollars per share)	$ 13.67		$ 13.67
Weighted-Average Remaining Contract Term
Outstanding	5 years 1 month 6 days	5 years 6 months	5 years 1 month 6 days	5 years 9 months 18 days
Exercised			5 years 1 month 6 days
Forfeited	6 years		6 years 1 month 6 days
Exercisable at end of period	5 years		5 years
Aggregated Intrinsic Value
Outstanding	$ 43		$ 43
Exercisable at end of period	$ 38		$ 38

EMPLOYEE STOCK COMPENSATION - N

EMPLOYEE STOCK COMPENSATION - Nonvested Stock Option Activity (Detail) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Number of Shares
Non-vested outstanding at beginning of period (in shares)	47,848	63,848
Vested (in shares)	(12,000)	(12,000)
Forfeited (in shares)	(28,000)	(44,000)
Non-vested outstanding at end of period (in shares)	7,848	7,848
Weighted- Average Exercise Price per Share
Non-vested outstanding at beginning of period (in dollars per share)	$ 13.30	$ 13.30
Vested (in dollars per share)	13.29	13.29
Forfeited (in dollars per share)	13.29	13.29
Non-vested outstanding at end of period (in dollars per share)	$ 13.35	$ 13.35

EMPLOYEE STOCK COMPENSATION -_2

EMPLOYEE STOCK COMPENSATION - Nonvested Restricted Stock Awards and Restricted Stock Units (Detail) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Restricted stock awards and restricted stock units
Number of Shares
Outstanding at beginning of period (in shares)	848,644	833,601
Granted (in shares)	587,804	723,398
Vested (in shares)	(201,816)	(215,257)
Forfeited (in shares)	(127,778)	(234,888)
Outstanding at end of period (in shares)	1,106,854	1,106,854
Weighted Average Grant Date Fair Value Per Share
Outstanding at beginning of period (in dollars per share)	$ 18.20	$ 19.02
Granted (in dollars per share)	14.23	14.33
Vested (in dollars per share)	19.07	18.94
Forfeited (in dollars per share)	18.19	19.19
Outstanding at end of period (in dollars per share)	$ 15.93	$ 15.93
Performance shares
Number of Shares
Granted (in shares)	151,395	151,395
Vested (in shares)	(37,572)	(37,572)
Forfeited (in shares)	(69,966)	(142,533)

EMPLOYEE STOCK COMPENSATION -_3

EMPLOYEE STOCK COMPENSATION - Summary of SARs Activity (Details) - Stock appreciation rights - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Number of Shares
Outstanding at beginning of period (in shares)	1,559,012	1,559,012	1,559,012
Outstanding at end of period (in shares)	1,559,012	1,559,012	1,559,012	1,559,012
Exercisable at end of period (in shares)	1,559,012		1,559,012
Weighted-Average Exercise Price Per Share
Outstanding at beginning of period (in dollars per share)	$ 11.60	$ 11.60	$ 11.60
Outstanding at end of period (in dollars per share)	11.60	$ 11.60	11.60	$ 11.60
Exercisable at end of period (in dollars per share)	$ 11.60		$ 11.60
Weighted-Average Remaining Contract Term
Outstanding	3 years 2 months 12 days	3 years 4 months 24 days	3 years 2 months 12 days	3 years 7 months 6 days
Exercisable at end of period	3 years 2 months 12 days		3 years 2 months 12 days
Aggregated Intrinsic Value
Outstanding	$ 3,691	$ 3,488	$ 3,691	$ 2,662
Exercisable at end of period	$ 3,691		$ 3,691

STOCKHOLDERS' EQUITY - Warrants

STOCKHOLDERS' EQUITY - Warrants (Details) - $ / shares

Jun. 29, 2018

Jun. 06, 2018

Mar. 31, 2018

Mar. 30, 2018

Dec. 27, 2017

Sep. 30, 2017

Jun. 30, 2017

Mar. 31, 2017

Dec. 31, 2016

Sep. 30, 2016

Jun. 17, 2016

Mar. 09, 2016

Dec. 08, 2015

Aug. 22, 2012

Jun. 30, 2019

Aug. 17, 2016

Aug. 16, 2016

Aug. 03, 2011

Nov. 01, 2010

Class of Stock [Line Items]

Exercise price of warrants for non-voting common stock (in dollars per share)

$ 11

Cor Advisors Llc

Class of Stock [Line Items]

Warrants issued (in shares)

1,395,000

Exercise price of warrants for non-voting common stock (in dollars per share)

$ 11

$ 11

$ 11

President And Chief Executive Officer | Cor Advisors Llc

Class of Stock [Line Items]

Warrants issued (in shares)

960,000

480,000

960,000

Warrants exercised (in shares)

90,000

President And Chief Executive Officer | Cor Advisors Llc | Exercisable on September 30, 2017

Class of Stock [Line Items]

Warrants issued (in shares)

90,000

Issuance of shares of voting common stock (in shares)

52,284

President And Chief Executive Officer | Cor Advisors Llc | Exercisable on December 31, 2017

Class of Stock [Line Items]

Warrants issued (in shares)

130,000

Exercise price of warrants for non-voting common stock (in dollars per share)

$ 8.49

Issuance of shares of voting common stock (in shares)

77,413

Warrants exercised (in shares)

130,000

President And Chief Executive Officer | Cor Advisors Llc | Exercisable on March 31, 2018

Class of Stock [Line Items]

Warrants issued (in shares)

130,000

Exercise price of warrants for non-voting common stock (in dollars per share)

$ 8.44

Issuance of shares of voting common stock (in shares)

72,159

Warrants exercised (in shares)

130,000

President And Chief Executive Officer | Cor Advisors Llc | Exercisable on June 30, 2018

Class of Stock [Line Items]

Warrants issued (in shares)

130,000

Exercise price of warrants for non-voting common stock (in dollars per share)

$ 8.38

Issuance of shares of voting common stock (in shares)

73,543

Warrants exercised (in shares)

130,000

President And Chief Executive Officer | Cor Advisors Llc | Tranche One

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

President And Chief Executive Officer | Cor Advisors Llc | Tranche Two

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

President And Chief Executive Officer | Cor Advisors Llc | Tranche Three

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

President And Chief Executive Officer | Cor Advisors Llc | Tranche Four

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

President And Chief Executive Officer | Cor Advisors Llc | Tranche Five

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

President And Chief Executive Officer | Cor Advisors Llc | Tranche Six

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

President And Chief Executive Officer | Cor Advisors Llc | Tranche Seven

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

President And Chief Executive Officer | Cor Advisors Llc | Tranche Eight

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

TCW Shared Opportunity Fund

Class of Stock [Line Items]

Warrant exercisable period

5 years

Vice President and Chief Lending Officer

Class of Stock [Line Items]

Exercise price of warrants for non-voting common stock (in dollars per share)

$ 8.80

$ 8.84

$ 8.90

$ 9.04

Vice President and Chief Lending Officer | Cor Advisors Llc

Class of Stock [Line Items]

Warrants issued (in shares)

0

435,000

Issuance of shares of voting common stock (in shares)

40,081

70,775

53,711

37,355

Warrants exercised (in shares)

80,000

130,000

130,000

95,000

Vice President and Chief Lending Officer | Cor Advisors Llc | Tranche One

Class of Stock [Line Items]

Warrants issued (in shares)

95,000

Vice President and Chief Lending Officer | Cor Advisors Llc | Tranche Two

Class of Stock [Line Items]

Warrants issued (in shares)

130,000

Vice President and Chief Lending Officer | Cor Advisors Llc | Tranche Three

Class of Stock [Line Items]

Warrants issued (in shares)

130,000

Vice President and Chief Lending Officer | Cor Advisors Llc | Tranche Four

Class of Stock [Line Items]

Warrants issued (in shares)

80,000

Brother of President and Chief Executive Officer | Cor Advisors Llc

Class of Stock [Line Items]

Warrants issued (in shares)

480,000

Exercise price of warrants for non-voting common stock (in dollars per share)

$ 8.55

$ 8.61

$ 8.66

$ 8.72

$ 8.80

Warrants exercised (in shares)

40,000

130,000

130,000

130,000

50,000

Brother of President and Chief Executive Officer | Cor Advisors Llc | Exercisable on September 30, 2016

Class of Stock [Line Items]

Warrants issued (in shares)

50,000

Brother of President and Chief Executive Officer | Cor Advisors Llc | Exercisable on December 31, 2016

Class of Stock [Line Items]

Warrants issued (in shares)

130,000

Brother of President and Chief Executive Officer | Cor Advisors Llc | Exercisable on March 31, 2017

Class of Stock [Line Items]

Warrants issued (in shares)

130,000

Brother of President and Chief Executive Officer | Cor Advisors Llc | Exercisable on June 30, 2017

Class of Stock [Line Items]

Warrants issued (in shares)

130,000

Brother of President and Chief Executive Officer | Cor Advisors Llc | Exercisable on September 30, 2017

Class of Stock [Line Items]

Warrants issued (in shares)

40,000

Brother of President and Chief Executive Officer | Class B Common Stock | Cor Advisors Llc

Class of Stock [Line Items]

Number of shares canceled (in shares)

176,488

Brother of President and Chief Executive Officer | Class A Common Stock | Cor Advisors Llc

Class of Stock [Line Items]

Common stock, shares issued (in shares)

176,488

Brother of President and Chief Executive Officer | Common Stock | Class B Common Stock | Cor Advisors Llc

Class of Stock [Line Items]

Issuance of shares of voting common stock (in shares)

23,237

77,376

75,875

Brother of President and Chief Executive Officer | Common Stock | Class A Common Stock | Cor Advisors Llc

Class of Stock [Line Items]

Issuance of shares of voting common stock (in shares)

64,962

25,051

STOCKHOLDERS' EQUITY - Preferre

STOCKHOLDERS' EQUITY - Preferred Stock (Details) - USD ($)	Sep. 17, 2018	Jun. 30, 2019	Dec. 31, 2018	Jul. 25, 2019
Preferred Stock
Class of Stock [Line Items]
Payment for redemption of shares	$ 40,300,000
Preferred Stock | Series C 8.00% non-cumulative perpetual
Class of Stock [Line Items]
Shares redeemed (in shares)	40,250
Non cumulative preferred stock, dividend rate	8.00%	8.00%	8.00%
Liquidation amount (in usd per share)	$ 1,000
Preferred Stock | Series C Depository Shares
Class of Stock [Line Items]
Shares redeemed (in shares)	1,610,000
Interest in Series C Preferred Stock represented by each redeemed share (percent)	2.50%
Liquidation amount (in usd per share)	$ 25
Deferred issuance costs reclassified to retained earnings	$ 2,300,000
Subsequent Event | Series D and Series E Preferred Stock
Class of Stock [Line Items]
Aggregate purchase price of tender offer				$ 75,000,000

STOCKHOLDERS' EQUITY - Summary

STOCKHOLDERS' EQUITY - Summary of Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 17, 2018	Jun. 30, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Carrying Value		$ 231,128	$ 231,128
Preferred Stock
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		240,000,000	240,000,000
Preferred stock, par value (in dollars per share)		$ 0.01
Preferred stock, liquidation preference per share (in dollars per share)		$ 1,000
Preferred stock, outstanding (in shares)		240,000,000	240,000,000
Liquidation Preference		$ 240,000	$ 240,000
Carrying Value		$ 231,128	$ 231,128
Preferred Stock | Series C 8.00% non-cumulative perpetual
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		0	0
Preferred stock, outstanding (in shares)		0	0
Liquidation Preference		$ 0	$ 0
Carrying Value		$ 0	$ 0
Non cumulative preferred stock, dividend rate	8.00%	8.00%	8.00%
Preferred Stock | Series D 7.375% non-cumulative perpetual
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		115,000,000	115,000,000
Preferred stock, outstanding (in shares)		115,000,000	115,000,000
Liquidation Preference		$ 115,000	$ 115,000
Carrying Value		$ 110,873	$ 110,873
Non cumulative preferred stock, dividend rate		7.375%	7.375%
Preferred Stock | Series E 7.00% non-cumulative perpetual
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		125,000,000	125,000,000
Preferred stock, outstanding (in shares)		125,000,000	125,000,000
Liquidation Preference		$ 125,000	$ 125,000
Carrying Value		$ 120,255	$ 120,255
Non cumulative preferred stock, dividend rate		7.00%	7.00%
Maximum | Preferred Stock
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		50,000,000

STOCKHOLDERS' EQUITY - Changes

STOCKHOLDERS' EQUITY - Changes to Accumulate Other Comprehensive Income by Components (Detail) - Gain (loss) on securities available-for-sale - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ (18,091)	$ (11,542)	$ (24,117)	$ 5,227
Unrealized gain (loss) arising during the period	7,678	(10,796)	16,422	(30,478)
Reclassification adjustment from other comprehensive income	0	(278)	(208)	(5,519)
Tax effect of current period changes	(2,255)	3,246	(4,765)	10,904
Total changes, net of taxes	5,423	(7,828)	11,449	(25,093)
Reclassification of stranded tax effects to retained earnings	0	0	0	496
Balance at end of period	$ (12,668)	$ (19,370)	$ (12,668)	$ (19,370)

VARIABLE INTEREST ENTITIES - Su

VARIABLE INTEREST ENTITIES - Summary of Unconsolidated VIEs (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Variable Interest Entity [Line Items]
Loss on investments in alternative energy partnerships	$ (355,000)	$ 1,950,000	$ 1,808,000	$ 1,595,000	$ 1,774,000
Tax credit	1,700,000		1,900,000	1,700,000	9,200,000
Funding of equity investment				1,501,000	1,864,000
Affordable Housing Fund Investment
Variable Interest Entity [Line Items]
Total amount funded	18,200,000			18,200,000
Aggregate funding commitment	29,300,000			29,300,000
Funding of equity investment	0		1,600,000	454,000	1,600,000
Amortization expense	553,000		477,000	1,200,000	974,000
Alternative investments unfunded investment commitments	11,100,000			11,100,000
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Funding	235,000		13,000	235,000	30,900,000
Return of capital	0		1,000,000	0	1,000,000
Loss on investments in alternative energy partnerships	(400,000)		1,800,000	1,600,000	(1,800,000)
Tax credit	1,700,000		1,900,000	1,700,000	9,200,000
Cash	3,610,000			3,610,000		$ 3,012,000
Equipment, net of depreciation	252,888,000			252,888,000		259,464,000
Other assets	4,842,000			4,842,000		4,470,000
Total unconsolidated assets	261,340,000			261,340,000		266,946,000
Total unconsolidated liabilities	6,166,000			6,166,000		6,269,000
Maximum loss exposure	30,429,000			30,429,000		28,988,000
Variable Interest Entity, Not Primary Beneficiary | Affordable Housing Fund Investment
Variable Interest Entity [Line Items]
Tax credit	554,000		466,000	1,100,000	941,000
Maximum loss exposure	18,800,000			18,800,000		$ 20,000,000
Variable Interest Entity, Not Primary Beneficiary | Other Assets
Variable Interest Entity [Line Items]
Total unconsolidated assets	$ 26,600,000		$ 44,800,000	$ 26,600,000	$ 44,800,000

EARNINGS PER COMMON SHARE - Com

EARNINGS PER COMMON SHARE - Computations for Basic and Diluted Earnings/(Loss) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule of Earnings Per Share [Line Items]
Income from continuing operations	$ 16,582	$ 7,037	$ 13,854	$ 23,619	$ 20,928
Less: income allocated to participating securities	(271)	0	(86)	(153)	0
Less: participating securities dividends	(94)	(202)	(203)	(295)	(406)
Less: preferred stock dividends	(4,308)	(4,308)	(5,113)	(8,616)	(10,226)
Income from continuing operations allocated to common stockholders	11,909		8,452	14,555	10,296
Income from discontinued operations	0	$ 0	926	0	2,410
Net income available to common stockholders	$ 11,909		$ 9,378	$ 14,555	$ 12,706
Weighted average common shares outstanding (in shares)	50,857,137		50,593,429	50,767,428	50,591,995
Dilutive effects of warrants (in shares)	0		73,721	0	111,781
Average shares and dilutive common shares (in shares)	50,964,956		50,919,091	50,895,190	50,900,887
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.23		$ 0.17	$ 0.29	$ 0.20
Income from discontinued operations (in usd per share)	0		0.02	0	0.05
Net income (in usd per share)	0.23		0.19	0.29	0.25
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.23		0.16	0.29	0.20
Income from discontinued operations (in usd per share)	0		0.02	0	0.05
Net income (in usd per share)	$ 0.23		$ 0.18	$ 0.29	$ 0.25
Stock Units
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	103,677		211,380	119,967	153,029
Stock Option
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	4,142		40,561	7,795	44,082
Class A Common Stock
Schedule of Earnings Per Share [Line Items]
Income from continuing operations	$ 16,426		$ 13,709	$ 23,397	$ 20,713
Less: income allocated to participating securities	(268)		(85)	(152)	0
Less: participating securities dividends	(93)		(201)	(292)	(402)
Less: preferred stock dividends	(4,268)		(5,059)	(8,535)	(10,121)
Income from continuing operations allocated to common stockholders	11,797		8,364	14,418	10,190
Income from discontinued operations	0		916	0	2,385
Net income available to common stockholders	$ 11,797		$ 9,280	$ 14,418	$ 12,575
Weighted average common shares outstanding (in shares)	50,379,816		50,062,442	50,290,107	50,072,385
Dilutive effects of warrants (in shares)	0		73,721	0	111,781
Average shares and dilutive common shares (in shares)	50,487,635		50,388,104	50,417,869	50,381,277
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.23	$ 0.05	$ 0.17	$ 0.29	$ 0.20
Income from discontinued operations (in usd per share)	0	0	0.02	0	0.05
Net income (in usd per share)	0.23	0.05	0.19	0.29	0.25
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.23	0.05	0.16	0.29	0.20
Income from discontinued operations (in usd per share)	0	0	0.02	0	0.05
Net income (in usd per share)	$ 0.23	0.05	$ 0.18	$ 0.29	$ 0.25
Class A Common Stock | Stock Units
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	103,677		211,380	119,967	153,029
Class A Common Stock | Stock Option
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	4,142		40,561	7,795	44,082
Class B Common Stock
Schedule of Earnings Per Share [Line Items]
Income from continuing operations	$ 156		$ 145	$ 222	$ 215
Less: income allocated to participating securities	(3)		(1)	(1)	0
Less: participating securities dividends	(1)		(2)	(3)	(4)
Less: preferred stock dividends	(40)		(54)	(81)	(105)
Income from continuing operations allocated to common stockholders	112		88	137	106
Income from discontinued operations	0		10	0	25
Net income available to common stockholders	$ 112		$ 98	$ 137	$ 131
Weighted average common shares outstanding (in shares)	477,321		530,987	477,321	519,610
Dilutive effects of warrants (in shares)	0		0	0	0
Average shares and dilutive common shares (in shares)	477,321		530,987	477,321	519,610
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.23	0.05	$ 0.17	$ 0.29	$ 0.20
Income from discontinued operations (in usd per share)	0	0	0.02	0	0.05
Net income (in usd per share)	0.23	0.05	0.19	0.29	0.25
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.23	0.05	0.17	0.29	0.20
Income from discontinued operations (in usd per share)	0	0	0.02	0	0.05
Net income (in usd per share)	$ 0.23	$ 0.05	$ 0.19	$ 0.29	$ 0.25
Class B Common Stock | Stock Units
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	0		0	0	0
Class B Common Stock | Stock Option
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	0		0	0	0

EARNINGS PER COMMON SHARE - Add

EARNINGS PER COMMON SHARE - Additional Information (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock excluded from computation of earnings per share (in shares)	517,833	38,836	484,163	222,431
Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock excluded from computation of earnings per share (in shares)	58,859	0	33,013	0

LOAN COMMITMENTS AND OTHER RE_3

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES - Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Commitments to extend credit
Other Commitments [Line Items]
Fixed Rate	$ 60,000	$ 2,167,000
Variable Rate	247,435,000	288,770,000
Commitments to extend credit | Banc Home Loan | Discontinued Operations
Other Commitments [Line Items]
Commitments to extend credit		0
Unused lines of credit
Other Commitments [Line Items]
Fixed Rate	817,000	1,514,000
Variable Rate	904,298,000	1,119,158,000
Letters of credit
Other Commitments [Line Items]
Fixed Rate	1,847,000	1,266,000
Variable Rate	$ 8,402,000	$ 8,561,000

LOAN COMMITMENTS AND OTHER RE_4

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		35 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Dec. 31, 2018
Affordable Housing Fund Investment
Other Commitments [Line Items]
Alternative investments unfunded investment commitments	$ 11,100		$ 11,100		$ 11,100
Small Business Investment Companies
Other Commitments [Line Items]
Alternative investments unfunded investment commitments	7,600		7,600		7,600
Other Investments
Other Commitments [Line Items]
Alternative investments unfunded investment commitments	501		501		501
Los Angeles Football Club (LAFC) Naming Rights, Revenue Rights, And Other Sponsorship Rights
Other Commitments [Line Items]
Maximum commitment						$ 100,000
Related party term of contract		15 years
Advertising and promotion expense	1,700	$ 1,700	3,300	$ 3,300
Payments for naming rights					18,000
Prepaid commitment balance, net of amortization	$ 8,000		$ 8,000		$ 8,000

REVENUE RECOGNITION - Summary o

REVENUE RECOGNITION - Summary of Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	$ 1,122		$ 1,504	$ 2,288	$ 2,985
Noninterest (loss) income (out-of-scope of Topic 606)	(3,412)		6,557	1,717	13,658
Total noninterest (loss) income	(2,290)	$ 6,295	8,061	4,005	16,643
Deposit service fees
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	575		708	1,242	1,486
Debit card fees
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	178		177	291	402
Investment commissions
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	260		619	539	942
Other
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	$ 109		$ 0	$ 216	$ 155

RELATED-PARTY TRANSACTIONS - Cu

RELATED-PARTY TRANSACTIONS - Current Related Party Indemnification Costs and Related Matters (Details) - Special Committee Investigation Indemnification - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 139		$ 142
Director | Emeritus John Grosvenor
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 2		$ 149
Director | Halle J. Benett
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 233		$ 272
Director | Jonah F. Schnel
Related Party Transaction [Line Items]
Expenses from transactions with related parties		233		272
Director | Robert Sznewajs
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 233		$ 272

RELATED-PARTY TRANSACTIONS - Sa

RELATED-PARTY TRANSACTIONS - Sabal Loan (Details) - Loan Purchase Commitments - Limited Liability Company Controlled By Affiliate Of Greater Than 5% Shareholder, Oaktree - USD ($)	12 Months Ended
	Dec. 31, 2018	Jul. 31, 2018	Jun. 11, 2017	Jun. 26, 2015
Related Party Transaction [Line Items]
Committed revolving repurchase facility			$ 40,000,000	$ 35,000,000
Amount outstanding		$ 3,500,000
Largest aggregate amount of principal outstanding during period	$ 32,500,000
Proceeds from principal	210,400,000
Proceeds from interest	$ 370,000
Maximum
Related Party Transaction [Line Items]
Committed revolving repurchase facility			$ 100,000,000

RELATED-PARTY TRANSACTIONS - Fo

RELATED-PARTY TRANSACTIONS - Former Related Party Indemnification Costs and Settlement Agreement (Details) - USD ($) $ in Thousands	Feb. 14, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Special Committee Investigation Indemnification
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 139		$ 142
Special Committee Investigation Indemnification | Former President And Chief Executive Officer
Related Party Transaction [Line Items]
Expenses from transactions with related parties		4,700	$ 1,800	6,900	$ 2,000
Special Committee Investigation Indemnification | Former Interim Chief Financial Officer and Chief Strategy Officer
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 186		$ 741
Special Committee Investigation Indemnification | Former Management Vice Chair
Related Party Transaction [Line Items]
Expenses from transactions with related parties			64		135
Special Committee Investigation Indemnification | Former Director | Cynthia Abercrombie
Related Party Transaction [Line Items]
Expenses from transactions with related parties			173		287
Special Committee Investigation Indemnification | Former Director | Jeffrey Karish
Related Party Transaction [Line Items]
Expenses from transactions with related parties			$ 233		$ 272
Termination Of Employment Settlement Agreement | Former Management Vice Chair
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 4,300
Company ownership percentage maximum threshold	4.99%
Termination Of Employment Settlement Agreement, Cash Proceeds From Unvested Stock Options And Restricted Stock Awards | Former Management Vice Chair
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 576
Termination Of Employment Settlement Agreement, Reimbursement For Health Care Premiums | Former Management Vice Chair
Related Party Transaction [Line Items]
Expenses from transactions with related parties	38
Termination Of Employment Settlement Agreement, Attorneys Fees | Former Management Vice Chair
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 650

LITIGATION - Additional Informa

LITIGATION - Additional Information (Details) $ in Thousands	Jun. 30, 2019USD ($)
Commitments and Contingencies Disclosure [Abstract]
Accrued litigation expense	$ 475

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details)	Jul. 25, 2019USD ($)
Series D and Series E Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Aggregate purchase price of tender offer	$ 75,000,000

Uncategorized Items - banc-6302

Label	Element	Value
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 1,012,308,000
Preferred Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	269,071,000
Treasury Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	(28,786,000)
AOCI Attributable to Parent [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	5,723,000
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	496,000
Retained Earnings [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	144,343,000
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(496,000)
Additional Paid-in Capital [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	621,435,000
Common Class B [Member] | Common Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	5,000
Common Class A [Member] | Common Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 517,000