Banc of California (BANC) 10-Q 8 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 01, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	BANC
Entity Registrant Name	BANC OF CALIFORNIA, INC.
Entity Central Index Key	1,169,770
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		50,181,187
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, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 23,961	$ 20,117
Interest-earning deposits in financial institutions	361,730	367,582
Total cash and cash equivalents	385,691	387,699
Securities available-for-sale, at fair value	2,297,124	2,575,469
Loans held-for-sale, carried at fair value	12,334	66,603
Loans held-for-sale, carried at lower of cost or fair value	1,419	466
Loans and leases receivable, net of allowance for loan and lease losses of $56,678 and $49,333 at June 30, 2018 and December 31, 2017, respectively	6,979,326	6,610,074
Federal Home Loan Bank and other bank stock, at cost	75,737	75,654
Servicing rights, net ($2,062 and $31,852 measured at fair value at June 30, 2018 and December 31, 2017, respectively, and $70 and $29,793 measured at fair value were held-for-sale at June 30, 2018 and December 31, 2017, respectively)	3,869	33,708
Other real estate owned, net	710	1,796
Premises, equipment, and capital leases, net	135,478	135,699
Bank owned life insurance	105,917	104,851
Goodwill	37,144	37,144
Investments in alternative energy partnerships, net	44,806	48,826
Deferred income taxes, net	42,334	31,074
Income tax receivable	7,995	8,739
Other intangible assets, net	7,683	9,353
Other assets	155,298	161,797
Assets of discontinued operations	26,415	38,900
Total assets	10,319,280	10,327,852
LIABILITIES AND STOCKHOLDERS’ EQUITY
Noninterest-bearing deposits	1,005,032	1,071,608
Interest-bearing deposits	6,130,762	6,221,295
Total deposits	7,135,794	7,292,903
Advances from Federal Home Loan Bank	1,805,000	1,695,000
Long term debt, net	173,017	172,941
Reserve for loss on repurchased loans	3,149	6,306
Due on unsettled securities purchases	132,546	0
Accrued expenses and other liabilities	81,086	140,575
Liabilities of discontinued operations	0	7,819
Total liabilities	9,330,592	9,315,544
Commitments and contingent liabilities
Preferred stock	269,071	269,071
Additional paid-in capital	623,372	621,435
Retained earnings	143,880	144,839
Treasury stock, at cost (1,583,380 shares at June 30, 2018 and December 31, 2017)	(28,786)	(28,786)
Accumulated other comprehensive income (loss), net	(19,370)	5,227
Total stockholders’ equity	988,688	1,012,308
Total liabilities and stockholders’ equity	10,319,280	10,327,852
Class A Common Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Common stock	517	517
Class B Common Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Common stock	$ 4	$ 5

Consolidated Statements of Fin3

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Loans and leases receivable, allowance	$ 56,678	$ 49,333
Fair value of retained MSRs	2,062	31,852
Fair value of held-for-sale MSRs	$ 70	$ 29,793
Common Stock:
Treasury stock (in shares)	1,583,380	1,583,380
Class A Common Stock
Common Stock:
Common stock, shares authorized (in shares)	446,863,844	446,863,844
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	51,726,335	51,666,725
Common stock, shares outstanding (in shares)	50,142,955	50,083,345
Class B Common Stock
Common Stock:
Common stock, shares authorized (in shares)	3,136,156	3,136,156
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	403,778	508,107
Common stock, shares outstanding (in shares)	403,778	508,107

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest and dividend income
Loans and leases, including fees	$ 81,307	$ 69,661	$ 156,219	$ 139,168
Securities	21,455	24,996	43,086	52,235
Other interest-earning assets	2,423	1,783	4,587	3,879
Total interest and dividend income	105,185	96,440	203,892	195,282
Interest expense
Deposits	20,315	14,942	37,110	28,902
Federal Home Loan Bank advances	9,539	2,774	16,931	4,197
Securities sold under repurchase agreements	211	180	961	186
Long term debt and other interest-bearing liabilities	2,356	3,044	4,688	6,016
Total interest expense	32,421	20,940	59,690	39,301
Net interest income	72,764	75,500	144,202	155,981
Provision for loan and lease losses	2,653	2,503	22,152	5,086
Net interest income after provision for loan and lease losses	70,111	72,997	122,050	150,895
Noninterest income
Customer service fees	1,491	1,669	3,083	3,292
Loan servicing income	948	132	3,259	2,888
Income from bank owned life insurance	533	616	1,066	1,197
Net gain on sale of securities available-for-sale	278	1,099	5,519	4,455
Net gain on sale of loans	821	983	780	5,002
Net loss on sale of mortgage servicing rights	(155)	0	(2,450)	0
Other income	4,145	1,208	5,386	3,776
Total noninterest income	8,061	5,707	16,643	20,610
Noninterest expense
Salaries and employee benefits	29,440	33,348	60,555	65,791
Occupancy and equipment	7,883	9,776	15,570	20,444
Professional fees	6,303	11,794	15,480	26,867
Outside service fees	413	1,119	2,959	3,002
Data processing	1,678	2,246	3,334	4,425
Advertising and promotion	2,864	1,117	6,141	2,842
Regulatory assessments	2,196	1,140	4,288	3,581
Loss on investments in alternative energy partnerships	1,808	9,761	1,774	18,443
Reversal of provision for loan repurchases	(218)	(403)	(2,006)	(728)
Amortization of intangible assets	827	1,056	1,670	2,146
Impairment on intangible assets	0	0	0	336
Restructuring expense	3,983	82	3,983	5,369
All other expense	5,362	5,283	8,591	13,697
Total noninterest expense	62,539	76,319	122,339	166,215
Income from continuing operations before income taxes	15,633	2,385	16,354	5,290
Income tax expense (benefit)	1,779	(12,753)	(4,574)	(19,224)
Income from continuing operations	13,854	15,138	20,928	24,514
Income from discontinued operations before income taxes (including net gain on disposal of $272 and $236, respectively, for the three months ended June 30, 2018 and 2017 and $1,275 and $13,538, respectively, for the six months ended June 30, 2018 and 2017)	1,281	(4,991)	3,325	8,357
Income tax expense (benefit)	355	(2,110)	915	3,413
Income (loss) from discontinued operations	926	(2,881)	2,410	4,944
Net income	14,780	12,257	23,338	29,458
Preferred stock dividends	5,113	5,113	10,226	10,226
Net income available to common stockholders	$ 9,667	$ 7,144	$ 13,112	$ 19,232
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.17	$ 0.20	$ 0.20	$ 0.27
Income (loss) from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	0.19	0.14	0.25	0.37
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.16	0.20	0.20	0.27
Income (loss) from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	$ 0.18	$ 0.14	$ 0.25	$ 0.37
Class A Common Stock
Noninterest expense
Income from continuing operations	$ 13,709	$ 15,054	$ 20,713	$ 24,396
Income (loss) from discontinued operations	916	(2,865)	2,385	4,920
Preferred stock dividends	$ 5,059	$ 5,085	$ 10,121	$ 10,177
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.17	$ 0.20	$ 0.20	$ 0.27
Income (loss) from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	0.19	0.14	0.25	0.37
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.16	0.20	0.20	0.27
Income (loss) from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	$ 0.18	$ 0.14	$ 0.25	$ 0.37
Class B Common Stock
Noninterest expense
Income from continuing operations	$ 145	$ 84	$ 215	$ 118
Income (loss) from discontinued operations	10	(16)	25	24
Preferred stock dividends	$ 54	$ 28	$ 105	$ 49
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.17	$ 0.20	$ 0.20	$ 0.27
Income (loss) from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	0.19	0.14	0.25	0.37
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.17	0.20	0.20	0.27
Income (loss) from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	$ 0.19	$ 0.14	$ 0.25	$ 0.37

Consolidated Statements of Ope5

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net gain on disposal	$ 272	$ 236	$ 1,275	$ 13,538

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 14,780	$ 12,257	$ 23,338	$ 29,458
Unrealized gain (loss) on available-for-sale securities:
Unrealized gain (loss) arising during the period	(7,631)	6,380	(21,192)	7,680
Unrealized gain arising from the reclassification of securities held-to-maturity to securities available-for-sale	0	12,845	0	12,845
Reclassification adjustment for gain included in net income	(197)	(642)	(3,901)	(2,602)
Total change in unrealized gain (loss) on available-for-sale securities	(7,828)	18,583	(25,093)	17,923
Total other comprehensive income (loss)	(7,828)	18,583	(25,093)	17,923
Comprehensive income (loss)	$ 6,952	$ 30,840	$ (1,755)	$ 47,381

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common 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, 2016	$ 980,239	$ 269,071		$ 537	$ 2	$ 614,226	$ 134,515	$ (29,070)	$ (9,042)
Comprehensive income:
Net income	29,458						29,458
Other comprehensive loss, net	17,923								17,923
Issuance of stock			$ 0	5	2	(7)
Exercise of stock options	0			1		(285)		284
Share-based compensation expense	7,691					7,691
Restricted stock surrendered due to employee tax liability	(5,377)			(3)		(5,374)
Stock appreciation right dividend equivalents	(405)						(405)
Dividends declared	(13,011)						(13,011)
Preferred stock dividends	(10,226)						(10,226)
Ending Balance at Jun. 30, 2017	1,006,292	269,071		540	4	616,251	140,331	(28,786)	8,881
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification of stranded tax effects to retained earnings	0						(496)		496
Adjusted Beginning Balance	1,012,308	269,071		517	5	621,435	144,343	(28,786)	5,723
Beginning Balance at Dec. 31, 2017	1,012,308	269,071		517	5	621,435	144,839	(28,786)	5,227
Comprehensive income:
Net income	23,338						23,338
Other comprehensive loss, net	(25,093)								(25,093)
Issuance of stock			$ 0	1	(1)	0
Share-based compensation expense	3,875					3,875
Restricted stock surrendered due to employee tax liability	(2,071)			(1)		(2,070)
Shares purchased under the Dividend Reinvestment Plan	(10)					132	(142)
Stock appreciation right dividend equivalents	(406)						(406)
Dividends declared	(13,027)						(13,027)
Preferred stock dividends	(10,226)						(10,226)
Ending Balance at Jun. 30, 2018	$ 988,688	$ 269,071		$ 517	$ 4	$ 623,372	$ 143,880	$ (28,786)	$ (19,370)

Consolidated Statements of Sto8

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Stockholders' Equity [Abstract]
Dividends declared, per common share (in dollars per share)	$ 0.26	$ 0.26

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 23,338	$ 29,458
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Provision for loan and lease losses	22,152	5,086
Provision for unfunded loan commitments	315	1,629
Reversal of provision for loan repurchases	(2,006)	(728)
Depreciation on premises and equipment	5,212	6,420
Amortization of intangible assets	1,670	2,146
Amortization of debt issuance cost	76	96
Net amortization (accretion) of premium and discount on securities	530	(505)
Net accretion of deferred loan cost and fees	(228)	(161)
Accretion of discounts on purchased loans	(562)	(4,222)
Deferred income tax benefit	(852)	(12,271)
Bank owned life insurance income	(1,066)	(1,197)
Share-based compensation expense	3,875	7,691
Loss in investments in alternative energy partnerships	1,774	18,443
Impairment on intangible assets	0	336
Impairment on capitalized software projects	498	0
Net revenue on mortgage banking activities	(288)	(43,070)
Net gain on sale of loans	(780)	(5,002)
Net gain on sale of securities available for sale	(5,519)	(4,455)
Loss from change of fair value on mortgage servicing rights	1,241	6,378
Loss on sale or disposal of property and equipment	61	1,035
Loss on sale of mortgage servicing rights	2,450	0
Net gain on disposal of discontinued operations	(1,275)	(13,538)
Repurchase of mortgage loans	(11,091)	(53,290)
Originations of loans held-for-sale from mortgage banking	0	(1,510,971)
Originations of other loans held-for-sale	(6,274)	(83,815)
Proceeds from sales of and principal collected on loans held-for-sale from mortgage banking	15,417	1,848,535
Proceeds from sales of and principal collected on other loans held-for-sale	5,751	265,510
Change in accrued interest receivable and other assets	5,117	10,288
Change in accrued interest payable and other liabilities	(8,678)	(86,711)
Net cash provided by operating activities	50,858	383,115
Cash flows from investing activities:
Proceeds from sales of securities available-for-sale	392,556	810,786
Proceeds from maturities and calls of securities available-for-sale	220,400	75,804
Proceeds from principal repayments of securities available-for-sale	20,451	22,958
Proceeds from maturities and calls of securities held-to-maturity	0	143,505
Purchases of securities available-for-sale	(247,530)	(550,700)
Net cash provided by disposal of discontinued operations	0	55,865
Loan and lease originations and principal collections, net	(602,103)	(467,539)
Redemption of Federal Home Loan Bank stock	13,642	5,300
Purchase of Federal Home Loan Bank and other bank stock	(13,725)	(896)
Proceeds from sale of loans	211,459	409,134
Proceeds from sale of other real estate owned	1,484	1,066
Proceeds from sale of mortgage servicing rights	30,056	0
Proceeds from sale of premises and equipment	19	512
Additions to premises and equipment	(5,569)	(12,089)
Payments of capital lease obligations	(253)	(516)
Funding of equity investment	(1,864)	(10,332)
Net (increase) decrease in investments in alternative energy partnerships	1,027	(30,940)
Net cash provided by investing activities	20,050	451,918
Cash flows from financing activities:
Net decrease in deposits	(157,109)	(1,097,239)
Net increase (decrease) in short-term Federal Home Loan Bank advances	(270,000)	330,000
Repayment of long-term Federal Home Loan Bank advances	0	(50,000)
Proceeds from long-term Federal Home Loan Bank advances	380,000	100,000
Net increase in securities sold under repurchase agreements	0	53,242
Net (decrease) increase in other borrowings	0	(68,000)
Payment of junior subordinated amortizing notes	0	(2,684)
Restricted stock surrendered due to employee tax liability	(2,071)	(5,377)
Dividend equivalents paid on stock appreciation rights	(404)	(404)
Dividends paid on preferred stock	(10,226)	(10,226)
Dividends paid on common stock	(13,106)	(12,665)
Net cash used by financing activities	(72,916)	(763,353)
Net change in cash and cash equivalents	(2,008)	71,680
Cash and cash equivalents at beginning of period	387,699	439,510
Cash and cash equivalents at end of period	385,691	511,190
Supplemental cash flow information
Interest paid on deposits and borrowed funds	58,727	38,673
Income taxes paid	2,337	8,864
Income taxes refunds received	24	14,070
Supplemental disclosure of non-cash activities
Transfer from loans to other real estate owned, net	434	1,803
Transfer of loans held-for-investment to loans held-for-sale	211,824	547,099
Equipment acquired under capital leases	21	70
Reclassification of stranded tax effects to retained earnings	496	0
Due on unsettled securities purchases	132,546	116,090
Loans sold to Ginnie Mae that are subject to a repurchase option	$ 0	$ 29,825

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2018
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). As of June 30, 2018 , the Bank had 34 banking offices, serving Orange, Los Angeles, San Diego, and Santa Barbara counties in California. 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 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, 2017 filed by the Company with the SEC. The December 31, 2017 statement 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, 2017 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. Certain reclassifications have been made in the prior period financial statements to conform to the current period presentation. The results of operations for the three and six months ended June 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 . Principles of Consolidation: The accompanying unaudited consolidated financial statements include the accounts of the Company as of June 30, 2018 and December 31, 2017 and for the three and six months ended June 30, 2018 and 2017 . 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, 2017 filed with the SEC. Refer to Accounting Pronouncements below for discussion of accounting pronouncements adopted in 2018 . 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 and lease losses (ALLL), reserve for loss on repurchased loans, reserve for unfunded loan commitments, servicing rights, realization of deferred tax assets, the valuation of goodwill and other intangible assets, purchased credit impaired (PCI) loan discount accretion, Hypothetical Liquidation at Book Value (HLBV) of investments in alternative energy partnerships, fair value of assets and liabilities acquired in business combinations, 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. Incentive Compensation: At December 31, 2017 and 2016 the Company accrued a liability for estimated discretionary incentive compensation payments to certain employees. In each case, the amount paid was less than the accrued liability. Consequently, the Company reversed each excess accrual and recorded a pre-tax credit to salaries and employee benefits on the consolidated statements of operations of $937 thousand and $7.8 million , respectively, during the three months ended March 31, 2018 and 2017. Each reversal, based on new information driven by changes to certain facts and circumstances subsequent to December 31, 2017 and 2016, was determined to be a change in estimate. 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, for all periods presented. Adopted Accounting Pronouncements: During the six months ended June 30, 2018 , the following pronouncements applicable to the Company were adopted: In May 2014, the FASB issued Accounting Standard Update (ASU) 2014-09, “ Revenue from Contracts with Customers (Topic 606). ” This Update outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The model is based on the principle that an entity should recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This Update also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to fulfill a contract. The Update, as amended by ASU 2015-14, ASU 2016-08, ASU 2016-10, ASU 2016-12, ASU 2016-20, ASU 2017-13, and ASU 2017-14, is effective for interim and annual periods beginning after December 15, 2017, and entities have the option of using either a modified retrospective or full retrospective approach for the adoption. The Company’s revenue streams primarily consist of net interest income and noninterest income. The scope of this Update explicitly excludes net interest income, as well as other revenues from transactions involving financial instruments, such as loans, leases, and securities. Certain noninterest income items such as service charges on deposits accounts, gain and loss on other real estate owned sales, and other income items are in the scope of this Update. The Company evaluated the accounting impact of adopting this guidance based on the following “Five-step Model” prescribed in ASC 606: (i) identify the contract; (ii) identify the performance obligation in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations; and (v) recognize revenue when (or as) the performance obligation is satisfied. The Company identified and reviewed the revenue streams within the scope of the Update, including escrow fees, trust and fiduciary fees, deposit service fees, debit card fees, investment commissions, gains on sales of OREO, referral fees, and income from joint marketing with a certain credit card company. The Company determined that the new guidance will not require significant changes to the manner in which income from those revenue streams is currently recognized. Adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. However, the Company has enhanced its processes to identify contracts within the scope of Topic 606 and apply the Five-step Model to determine how revenue should be recognized. The Company adopted this Update and its related amendments effective January 1, 2018 utilizing the modified retrospective approach. Since there was no net income impact upon adoption of the new guidance, a cumulative effect adjustment to opening retained earnings was not deemed necessary. See Note 21 for additional information. In January 2016, the FASB issued ASU 2016-01, “ Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities .” This Update amends certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The ASU requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income; simplifies the impairment assessment of equity investments by requiring a qualitative assessment; eliminates the requirement for public business entities to disclose methods and assumptions for financial instruments measured at amortized cost on the statement of financial position; requires the exit price notion to be used when measuring the fair value of financial instruments for disclosure purposes; requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability; requires separate presentation of financial assets and liabilities by measurement category; and certain other requirements. This ASU and ASU 2018-04 became effective for interim and annual periods beginning on or after December 15, 2017. Adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. With regard to the aforementioned exit price notion, the Company measured the fair value of its loans and leases portfolio for disclosure purposes starting March 31, 2018 using an exit price notion. See Note 3 for additional information. In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows (Topic 230)." The amendments in this Update provide guidance on classification of certain cash receipts and cash payments. For public business entities that are SEC filers, this Update was effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. While permitted, the Company did not elect to adopt the guidance early. Adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, “ Statement of Cash Flows (Topic 230) . ” The amendments in this Update are intended to reduce diversity in practice regarding classification of changes in restricted cash, requiring an entity to provide changes in restricted cash and restricted cash equivalents during the period in a statement of cash flows. This Update is effective for public business entities with fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Adoption of the new guidance had no impact on the Company's consolidated financial statements. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805). ” This Update provides guidance on evaluating whether transactions should be accounted for as an acquisition (or disposal) of assets or a businesses. This Update provides a more robust framework to use when determining whether a set of assets and activities represents a business. Public business entities must prospectively apply the amendment in this Update to annual periods beginning after December 15, 2017, including interim periods. Adoption of the new guidance had no impact on the Company's consolidated financial statements. In February 2017, the FASB issued ASU 2017-05, “Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets.” This Update clarifies the scope and application of ASC 610-20 on the sale or transfer of nonfinancial assets, including real estate, and in substance nonfinancial assets to noncustomers, including partial sales. An entity should identify each distinct nonfinancial asset or in substance nonfinancial asset promised to a counterparty and derecognize each asset when the counterparty obtains control of it. In addition, the amendment requires an entity to derecognize a distinct nonfinancial asset, or an in-substance nonfinancial asset, in a partial sale transaction when the entity does not retain a controlling financial interest in the legal entity that holds the asset and transfers control of the asset. Once control is transferred, any non-controlling interest received is required to be measured at fair value. The new guidance was effective for public business entities in annual and interim reporting periods beginning after December 15, 2017. Adoption of the new guidance had no impact on the Company's consolidated financial statements. In May 2017, the FASB issued ASU 2017-09, “Stock Compensation - Scope of Modification Accounting (Topic 718): Scope of Modification Accounting.” This Update provides guidance on when changes to the terms or conditions of a share-based payment award are to be accounted for as modifications. Under the new guidance, entities are not required to apply modification accounting to a share-based payment award when the award’s fair value, vesting conditions, and classification as an entity or a liability instrument remain the same after the change. The new guidance was effective for all entities beginning after December 15, 2017, including interim periods within the fiscal year. Upon adoption, the guidance will be applied prospectively to awards modified on or after the adoption date. Adoption of the new guidance had no impact on the Company's consolidated financial statements. In February 2018, the FASB issued ASU 2018-02. "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income." This Update allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The amendments in this Update also require certain disclosures about stranded tax effects. The amendments in this Update are effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption of the amendments in this Update is permitted, including adoption in any interim period for public business entities for reporting periods for which financial statements have not yet been issued. The Company early adopted this Update during the three months ended March 31, 2018 and reclassified its stranded tax effect of $496 thousand in accumulated other comprehensive income that resulted from the change in the U.S. federal corporate tax rate to retained earnings.

SALE OF BUSINESS UNIT (DISCONTI

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS)	6 Months Ended
	Jun. 30, 2018
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, is classified as discontinued operations in the accompanying Consolidated Statements of Financial Condition and Consolidated Statements of Operations. 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 financial statements as they remain part of the Company’s ongoing operations. The specific assets acquired by Caliber include, among other things, the leases relating to the Company’s dedicated mortgage loan origination offices and rights to certain portions of the Company’s unlocked pipeline of residential mortgage loan applications. Caliber has assumed certain obligations and liabilities of the Company under the acquired leases, and with respect to the employment of transferred employees. The Company received a $25.0 million cash premium payment, in addition to the net book value of certain assets acquired by Caliber, totaling $2.5 million , upon the closing of the transaction. Additionally, the Company could receive an earn-out, payable quarterly, based on future performance over the 38 months following completion of the transaction. During the three and six months ended June 30, 2018 , the Company recognized an earn-out of $777 thousand and $1.4 million , respectively. The Company did not recognize any earn-out during the three months ended June 30, 2017. Since the completion of the transaction, the Company has recognized a total earn-out of $2.5 million in Income from Discontinued Operations on the Consolidated Statements of Operations. Caliber retains an option to buy out the future earn-out payable to the Company for cash consideration of $35.0 million , less the aggregate amount of all earn-out payments made prior to the date on which Caliber pays the buyout amount. Caliber also purchased MSRs of $37.8 million on approximately $3.86 billion in unpaid balances of conventional agency mortgage loans, subject to adjustment under certain circumstances. During the three and six months ended June 30, 2018 , the Company recorded $272 thousand and $1.3 million , respectively, to net gain on disposal of discontinued operations. Net gain on disposal of discontinued operations recognized in the first half of 2018 was primarily the result of the release of $1.0 million in liability for estimated discretionary incentive compensation payments to certain employees transferred to Caliber as the amount paid was less than the accrued liability. To date, the entire transaction has resulted in a net gain on disposal of $15.1 million . The following table summarizes the calculation of the net gain on disposal of discontinued operations: Three Months Ended June 30, Six Months Ended June 30, Total Net Gain on Disposal After Completion of Sale ($ in thousands) 2018 2017 2018 2017 Proceeds from the transaction $ — $ (264 ) $ — $ 63,068 $ 63,054 Compensation expense related to the transaction — 500 1,003 (3,500 ) (2,497 ) Other transaction costs 272 — 272 (3,703 ) (3,159 ) Net cash proceeds 272 236 1,275 55,865 57,398 Book value of certain assets sold — — — (2,455 ) (2,455 ) Book value of MSRs sold — — — (37,772 ) (37,772 ) Goodwill — — — (2,100 ) (2,100 ) Net gain on disposal $ 272 $ 236 $ 1,275 $ 13,538 $ 15,071 The Banc Home Loans division originated conforming SFR mortgage loans and sold these loans in the secondary market. The amount of net revenue on mortgage banking activities was a function of mortgage loans originated for sale and the fair values of these loans and related derivatives. Net revenue on mortgage banking activities included mark to market pricing adjustments on loan commitments and forward sales contracts, and initial capitalized value of MSRs. The following tables present the financial information of discontinued operations as of the dates or for the periods indicated: Statements of Financial Condition of Discontinued Operations ($ in thousands) June 30, 2018 December 31, 2017 ASSETS Loans held-for-sale, carried at fair value (1) (2) $ 26,415 $ 38,696 Other assets — 204 Assets of discontinued operations $ 26,415 $ 38,900 LIABILITIES Accrued expenses and other liabilities (1) $ — $ 7,819 Liabilities of discontinued operations $ — $ 7,819 (1) Includes $0 and $7.1 million of loans sold to Government National Mortgage Association (GNMA) that were delinquent more than 90 days and subject to a repurchase option by the Company at June 30, 2018 and December 31, 2017 , respectively. As such, the Company was deemed to have regained control over those previously transferred assets and has re-recognized them with an offsetting liability in Accrued Expenses and Other Liabilities in the Statements of Financial Condition of Discontinued Operations, as a secured borrowing. Because the Company intends to exercise its option to repurchase and sell them within one year, they have been classified as part of discontinued operations. (2) Includes $10.7 million and $24.1 million of non-performing loans at June 30, 2018 and December 31, 2017 . Statements of Operations of Discontinued Operations Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Interest income Loans, including fees $ 189 $ 2,796 $ 375 $ 6,062 Total interest income 189 2,796 375 6,062 Noninterest income Net gain on disposal 272 236 1,275 13,538 Loan servicing income — — — 1,551 Net revenue on mortgage banking activities 56 13,636 288 43,070 All other income 779 238 1,414 752 Total noninterest income 1,107 14,110 2,977 58,911 Noninterest expense Salaries and employee benefits 6 13,593 15 37,968 Occupancy and equipment — 1,038 — 3,395 Professional fees — 2,090 — 2,192 Outside Service Fees — 3,249 — 5,613 Data processing — 63 — 527 Advertising — 449 — 1,282 Restructuring expense — 297 — 3,515 All other expenses 9 1,118 12 2,124 Total noninterest expense 15 21,897 27 56,616 Income (loss) from discontinued operations before income taxes 1,281 (4,991 ) 3,325 8,357 Income tax expense 355 (2,110 ) 915 3,413 Income (loss) from discontinued operations $ 926 $ (2,881 ) $ 2,410 $ 4,944 Statements of Cash Flows of Discontinued Operations Six Months Ended June 30, ($ in thousands) 2018 2017 Net cash provided by operating activities $ 7,076 $ 250,170 Net cash provided by investing activities — 55,865 Net cash provided by discontinued operations $ 7,076 $ 306,035

FAIR VALUES OF FINANCIAL INSTRU

FAIR VALUES OF FINANCIAL INSTRUMENTS	6 Months Ended
	Jun. 30, 2018
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, 2018 or December 31, 2017 . 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 were re-recognized at fair value and offset by a secured borrowing, as the loans were still legally owned by GNMA. 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, 2018, there were no loans that were delinquent more than 90 days and eligible to be repurchased out of GNMA loan pools. As of December 31, 2017, loans eligible to be repurchased out of GNMA loan pools of $66.0 million were classified as Level 3. Derivative Assets and Liabilities : 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. Mortgage Servicing Rights: The Company retains servicing on some of its mortgage loans sold and elected the fair value option for these MSRs. Generally, the value is estimated based on a valuation from a third party provider that calculates the present value of the expected net servicing income from the portfolio based on key factors that include interest rates, prepayment assumptions, discount rate and estimated cash flows. Because of the significance of unobservable inputs, these servicing rights are classified as Level 3. At June 30, 2018 and December 31, 2017 , MSRs held-for-sale of $70 thousand and $29.8 million , respectively, were valued based on a market bid adjusted for value associated with early payoffs and paydowns and included as Level 3. The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2018 Assets Securities available-for-sale: SBA loan pools securities $ 967 $ — $ 967 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 456,790 — 456,790 — Non-agency residential mortgage-backed securities 496 — 496 — Non-agency commercial mortgage-backed securities 158,358 — 158,358 — Collateralized loan obligations 1,680,513 — 1,680,513 — Loans held-for-sale, carried at fair value (1) 38,749 — 5,515 33,234 Mortgage servicing rights (2) 2,062 — — 2,062 Derivative assets: Interest rate swaps and caps (3) 1,686 — 1,686 — Liabilities Derivative liabilities: Interest rate swaps and caps (4) 1,650 — 1,650 — December 31, 2017 Assets Securities available-for-sale: SBA loan pools securities $ 1,058 $ — $ 1,058 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 476,929 — 476,929 — Non-agency residential mortgage-backed securities 756 — 756 — Non-agency commercial mortgage-backed securities 310,511 — 310,511 — Collateralized loan obligations 1,702,318 — 1,702,318 — Corporate debt securities 83,897 — 83,897 — Loans held-for-sale, carried at fair value (5) 105,299 — 6,359 98,940 Mortgage servicing rights (2) 31,852 — — 31,852 Derivative assets: Interest rate swaps and caps (3) 1,005 — 1,005 — Liabilities Derivative liabilities: Interest rate swaps and caps (4) 1,033 — 1,033 — (1) Includes loans held-for-sale carried at fair value of $26.4 million ( $5.5 million at Level 2 and $20.9 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition. (2) Included in Servicing Rights, Net in the Consolidated Statements of Financial Condition. (3) Included in Other Assets in the Consolidated Statements of Financial Condition. (4) Included in Accrued Expenses and Other Liabilities in the Consolidated Statements of Financial Condition. (5) Includes loans held-for-sale carried at fair value of $38.7 million ( $6.4 million at Level 2 and $32.3 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition. The following table presents a reconciliation of assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3), on a consolidated operations basis, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Mortgage servicing rights Balance at beginning of period (1) $ 4,953 $ 42,833 $ 31,852 $ 76,121 Transfers in and (out) of Level 3 (2) — — — — Total gains or losses (realized/unrealized): Included in earnings—fair value adjustment (216 ) (3,035 ) (1,090 ) (3,079 ) Additions — 3,751 — 11,552 Sales, paydowns, and other (3) (2,675 ) (1,440 ) (28,700 ) (42,485 ) Balance at end of period $ 2,062 $ 42,109 $ 2,062 $ 42,109 Loans repurchased or subject to repurchase option from GNMA Loan Pools (4) Balance at beginning of period $ 42,962 $ 66,701 $ 98,940 $ 58,260 Transfers in and (out) of Level 3 (2) — — — — Total gains or losses (realized/unrealized): Included in earnings—fair value adjustment (248 ) 6 (254 ) 15 Additions 2,765 17,935 27,385 35,231 Sales, settlements, and other (12,245 ) (11,097 ) (92,837 ) (19,961 ) Balance at end of period $ 33,234 $ 73,545 $ 33,234 $ 73,545 (1) Includes MSRs of discontinued operations, which is included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition, of $37.7 million for the six months ended June 30, 2017 in balance at beginning of period. (2) The Company’s policy is to recognize transfers in and transfers out as of the actual date of the event or change in circumstances that causes the transfer. (3) Includes $37.8 million of MSRs sold as a part of discontinued operations for the six months ended June 30, 2017 . (4) 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 $24.0 million and $66.7 million , respectively, for the three months ended June 30, 2018 and 2017 and $32.3 million and $58.3 million , respectively, for the six months ended June 30, 2018 and 2017 in balance at beginning of period, and $20.9 million and $52.1 million , respectively, for the three and six months ended June 30, 2018 and 2017 in balance at end of period. Loans repurchased from GNMA loan pools and loans previously sold to GNMA that are delinquent more than 90 days and subject to a repurchase option held by the Company had aggregate unpaid principal balances of $34.2 million and $99.7 million at June 30, 2018 and December 31, 2017 , respectively. The following table presents, as of the dates indicated, quantitative information about Level 3 fair value measurements on a recurring basis, other than loans that become severely delinquent and are repurchased out of GNMA loan pools that were valued based on an estimate of the expected loss the Company will incur on these loans, which was included as Level 3 at June 30, 2018 and December 31, 2017 : ($ in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Range (Weighted Average) June 30, 2018 Mortgage servicing rights $ 1,992 Discounted cash flow Discount rate 13.00% to 13.00% (13.00%) Prepayment rate 12.39% to 44.76% (16.44%) December 31, 2017 Mortgage servicing rights (1) $ 2,059 Discounted cash flow Discount rate 13.00% to 13.00% (13.00%) Prepayment rate 10.04% to 49.97% (16.54%) (1) Excludes MSRs held-for-sale of $70 thousand and $29.8 million , respectively, which were valued based on a market bid adjusted for expected obligations arising from standard representations and warranties at June 30, 2018 and December 31, 2017 . The significant unobservable inputs used in the fair value measurement of the Company’s servicing rights include the discount rate and prepayment rate. The significant unobservable inputs used in the fair value measurement of the Company's loans repurchased from GNMA loan pools at June 30, 2018 and December 31, 2017 included an expected loss rate of 1.55 percent for insured loans and 20.00 percent for uninsured loans. There may be inherent weaknesses in any calculation technique, and changes in the underlying assumptions used, including discount rates and estimates of future cash flows, could significantly affect the results. Fair Value Option Loans Held-for-Sale, Carried at Fair Value: The Company elected to measure certain SFR mortgage loans held-for-sale under the fair value option. Electing to measure SFR mortgage loans held-for-sale at fair value reduces certain timing differences and better matches changes in the value of these assets with changes in the value of derivatives used as economic hedges for these assets. The Company also elected to record loans repurchased from GNMA at fair value, as the Company intends to sell them after curing any defects and, accordingly, they are classified as held-for-sale. Loans previously sold to GNMA that are delinquent more than 90 days are subject to a repurchase option when that condition exists. These loans were re-recognized at fair value and offset by a secured borrowing, as the loans were still legally owned by GNMA. The following table presents the fair value and aggregate principal balance of certain assets, on a consolidated operations basis, under the fair value option: June 30, 2018 December 31, 2017 ($ 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 $ 12,334 $ 13,021 $ (687 ) $ 66,603 $ 67,415 $ (812 ) Non-accrual loans (1) 919 938 (19 ) 60,999 61,900 (901 ) Loans held-for-sale, carried at fair value in discontinued operations: Total loans $ 26,415 $ 27,510 $ (1,095 ) $ 38,696 $ 39,541 $ (845 ) Non-accrual loans (2) 10,732 10,887 (155 ) 24,073 24,297 (224 ) (1) Includes loans guaranteed by the U.S. government of $753 thousand and $54.2 million , respectively, at June 30, 2018 and December 31, 2017 . (2) Includes loans guaranteed by the U.S. government of $8.6 million and $20.7 million , respectively, at June 30, 2018 and December 31, 2017 . There were no loans held-for-sale that were 90 days or more past due and still accruing as of June 30, 2018 and December 31, 2017 . The assets and liabilities accounted for under the fair value option are initially measured at fair value. Gains and losses from initial measurement and subsequent changes in fair value are recognized in earnings. The following table presents changes in fair value related to initial measurement and subsequent changes in fair value included in earnings for these assets and liabilities measured at fair value for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Net gains (losses) from fair value changes Net gain (loss) on sale of loans (continuing operations) $ 6 $ 2 $ (20 ) $ 8 Net revenue on mortgage banking activities (discontinued operations) (247 ) 2,459 (245 ) 2,373 Changes in fair value due to instrument-specific credit risk were insignificant for the three and six months ended June 30, 2018 and 2017 . Interest income on loans held-for-sale under the fair value option is measured based on the contractual interest rate and reported in Loans and Leases, including Fees under Interest and Dividend Income and Income from Discontinued Operations in the Consolidated Statements of Operations. Assets and Liabilities Measured on a Non-Recurring Basis Impaired Loans and Leases: Impairment of collateral dependent loans and leases with specific allocations of the ALLL are generally based on recent real estate appraisals. 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. Loans Held-for-Sale, Carried at Lower of Cost or Fair Value: The Company records non-conforming jumbo mortgage loans held-for-sale and certain non-residential mortgage loans held-of-sale at the lower of cost or fair value, on an aggregate basis. The Company obtains fair values from a third party independent valuation service provider. Loans held-for-sale accounted for at the lower of cost or fair value are considered to be recognized at fair value when they are recorded at below cost, on an aggregate basis, and are classified as Level 2. SBA Servicing Assets: SBA servicing assets represent the value associated with servicing SBA loans that have been sold. SBA servicing assets are accounted for at the lower of cost or market value and considered to be recognized at fair value when they are recorded at below cost and are classified as Level 3. The fair value for SBA servicing assets is determined through a discounted cash flow analysis that utilizes estimated market yield and projected prepayment speeds as inputs. All of these assumptions require a significant degree of management estimation and judgment. The fair market valuation is performed on a quarterly basis for SBA servicing assets. Other Real Estate Owned Assets: Other Real Estate Owned (OREO) assets initially are recorded at fair value at the time of foreclosure. Thereafter, they are recorded at the lower of cost or fair value. The fair value of other real estate owned assets is generally based on recent real estate appraisals adjusted for estimated selling costs. 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 may be significant and result in a Level 3 classification due to the unobservable inputs used for determining fair value. Only OREO assets with a valuation allowance are considered to be carried at fair value. There was no valuation allowance expense for OREO assets for the three months ended June 30, 2018 and 2017 . The Company recorded valuation allowance expense for OREO assets of $53 thousand and $9 thousand for the six months ended June 30, 2018 and 2017 in All Other Expense in the Consolidated Statements of Operations. The following table presents the Company’s financial assets and liabilities measured at fair value on a non-recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2018 Assets Impaired loans: Other consumer $ 4 — — $ 4 Other real estate owned: Single family residential 276 — — 276 December 31, 2017 Assets Impaired loans: SBA $ 174 — — $ 174 Other real estate owned: Single family residential 1,415 — — 1,415 The following table presents the gains and (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) 2018 2017 2018 2017 Impaired loans: Single family residential mortgage $ — $ — $ (115 ) $ — Commercial and industrial (231 ) — (292 ) — SBA — — (380 ) — Other consumer — — (141 ) — Construction — (29 ) — (29 ) Other real estate owned: Single family residential 183 36 194 28 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, 2018 Financial assets Cash and cash equivalents $ 385,691 $ 385,691 $ — $ — $ 385,691 Securities available-for-sale 2,297,124 — 2,297,124 — 2,297,124 Federal Home Loan Bank and other bank stock 75,737 — 75,737 — 75,737 Loans held-for-sale (1) 40,168 — 7,013 33,234 40,247 Loans and leases receivable, net of ALLL 6,979,326 — — 6,960,050 6,960,050 Accrued interest receivable 37,138 37,138 — — 37,138 Derivative assets 1,686 — 1,686 — 1,686 Financial liabilities Deposits 7,135,794 — — 6,902,576 6,902,576 Advances from Federal Home Loan Bank 1,805,000 — 1,800,336 — 1,800,336 Long term debt 173,017 — 176,103 — 176,103 Derivative liabilities 1,650 — 1,650 — 1,650 Accrued interest payable 8,279 8,279 — — 8,279 December 31, 2017 Financial assets Cash and cash equivalents $ 387,699 $ 387,699 $ — $ — $ 387,699 Securities available-for-sale 2,575,469 — 2,575,469 — 2,575,469 Federal Home Loan Bank and other bank stock 75,654 — 75,654 — 75,654 Loans held-for-sale (2) 105,765 — 6,866 98,940 105,806 Loans and leases receivable, net of ALLL 6,610,074 — — 6,601,767 6,601,767 Accrued interest receivable 35,355 35,355 — — 35,355 Derivative assets 1,005 — 1,005 — 1,005 Financial liabilities Deposits 7,292,903 — — 7,063,613 7,063,613 Advances from Federal Home Loan Bank 1,695,000 — 1,695,039 — 1,695,039 Long term debt 172,941 — 180,560 — 180,560 Derivative liabilities 1,033 — 1,033 — 1,033 Accrued interest payable 7,321 7,321 — — 7,321 (1) Includes loans held-for-sale carried at fair value of $26.4 million ( $5.5 million at Level 2 and $20.9 million at Level 3) of discontinued operations. (2) Includes loans held-for-sale carried at fair value of $38.7 million ( $6.4 million at Level 2 and $32.3 million at Level 3) of discontinued operations. The methods and assumptions used to estimate fair value are described as follows: Cash and Cash Equivalents and Time Deposits in Financial Institutions: The carrying amounts of cash and cash equivalents and time deposits in financial institutions approximate fair value due to the short-term nature of these instruments (Level 1). Federal Home Loan Bank and Other Bank Stock: Federal Home Loan Bank and other bank stock are recorded at cost, which approximates fair value. Ownership of FHLB stock is restricted to member banks, and purchases and sales of these securities are at par value with the issuer (Level 2). Loans and Leases Receivable, Net of ALLL: For June 30, 2018, the fair value of loans and leases receivable is estimated based on a discounted cash flow approach under an exit price notion. For December 31, 2017, the fair value of loans and leases receivable were estimated based on a discounted cash flow approach under an entry price notion. The fair value reflects the estimated yield that would be negotiated with a willing market participant. Because sale transactions of such loans are not readily observable, as many of the loans have unique risk characteristics, the valuation is based on significant unobservable inputs (Level 3). Accrued Interest Receivable: The carrying amount of accrued interest receivable approximates its fair value (Level 1). Deposits: The fair value of deposits is estimated based on discounted cash flows. The cash flows for non-maturity deposits, including savings accounts and money market checking, are estimated based on their historical decaying experiences. The discount rate used for fair valuation is based on interest rates currently being offered by the Bank on comparable deposits as to amount and term (Level 3). Advances from Federal Home Loan Bank and Other Borrowings: The fair values of advances from FHLB and other borrowings are estimated based on a discounted cash flow approach. The discount rate was derived from the current market rates for borrowings with similar remaining maturities (Level 2). Long-Term Debt: Fair value of long-term debt is determined by observable data such as market spreads, cash flows, yield curves, credit information, and respective terms and conditions for debt instruments (Level 2). Accrued Interest Payable: The carrying amount of accrued interest payable approximates its fair value (Level 1).

INVESTMENT SECURITIES

INVESTMENT SECURITIES	6 Months Ended
	Jun. 30, 2018
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, 2018 Securities available-for-sale: SBA loan pool securities $ 982 $ — $ (15 ) $ 967 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 485,503 — (28,713 ) 456,790 Non-agency residential mortgage-backed securities 483 15 (2 ) 496 Non-agency commercial mortgage-backed securities 160,970 7 (2,619 ) 158,358 Collateralized loan obligations 1,676,611 6,996 (3,094 ) 1,680,513 Total securities available-for-sale $ 2,324,549 $ 7,018 $ (34,443 ) $ 2,297,124 December 31, 2017 Securities available-for-sale: SBA loan pool securities $ 1,056 $ 2 $ — $ 1,058 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 492,255 10 (15,336 ) 476,929 Non-agency residential mortgage-backed securities 741 16 (1 ) 756 Non-agency commercial mortgage-backed securities 305,172 5,339 — 310,511 Collateralized loan obligations 1,691,455 11,129 (266 ) 1,702,318 Corporate debt securities 76,714 7,183 — 83,897 Total securities available-for-sale $ 2,567,393 $ 23,679 $ (15,603 ) $ 2,575,469 During the three months ended June 30, 2017, the Company evaluated its securities held-to-maturity and determined that certain securities no longer adhere to the Company’s strategic focus and could be sold or reinvested to potentially improve the Company’s liquidity position or duration profile. Accordingly, the Company was no longer able to assert that it had the intent to hold these securities until maturity. As a result, the Company transferred all $740.9 million of its securities held-to-maturity to securities available-for-sale, which resulted in a pre-tax increase to accumulated other comprehensive income of $22.0 million as of June 30, 2017. Due to the transfer, the Company’s ability to assert that it has the intent and ability to hold held-to-maturity debt securities will be limited for the foreseeable future. During the three months ended March 31, 2018 , the Company completed the sale of all remaining corporate debt securities totaling $76.8 million to reposition its securities available-for-sale portfolio. At June 30, 2018 , the Company's investment securities portfolio consisted of SBA loan pool securities, mortgage-backed securities, and collateralized loan obligations. The expected maturities of these types of securities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. At June 30, 2018 and December 31, 2017 , there were no holdings of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10 percent of the Company's stockholders’ equity. The following table presents proceeds from sales and calls of securities available-for-sale and the associated gross gains and losses realized through earnings upon the sales and calls of securities available-for-sale for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Gross realized gains on sales and calls of securities available-for-sale $ 278 $ 1,099 $ 5,519 $ 4,455 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 $ 1,099 $ 5,519 $ 4,455 Proceeds from sales and calls of securities available-for-sale $ 325,439 $ 475,586 $ 612,956 $ 886,590 Tax expense on sales and calls of securities available-for-sale $ 81 $ 457 $ 1,618 $ 1,853 Investment securities with carrying values of $527.5 million and $564.4 million as of June 30, 2018 and December 31, 2017 , respectively, were pledged to secure FHLB advances, public deposits, repurchase agreements, and for other purposes as required or permitted by law. The following table summarizes the investment securities with unrealized losses by security type and length of time in a continuous unrealized loss position as of the dates indicated: Less Than 12 Months 12 Months or Longer Total ($ in thousands) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses June 30, 2018 Securities available-for-sale: SBA loan pool securities $ 966 $ (15 ) $ — $ — $ 966 $ (15 ) U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ 16,907 $ (374 ) $ 436,740 $ (28,339 ) $ 453,647 $ (28,713 ) Non-agency residential mortgage-backed securities 95 (1 ) 61 (1 ) 156 (2 ) Non-agency commercial mortgage-backed securities 152,392 (2,619 ) — — 152,392 (2,619 ) Collateralized loan obligations 295,281 (3,094 ) — — 295,281 (3,094 ) Total securities available-for-sale $ 465,641 $ (6,103 ) $ 436,801 $ (28,340 ) $ 902,442 $ (34,443 ) December 31, 2017 Securities available-for-sale: U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ 4,880 $ (35 ) $ 470,092 $ (15,301 ) $ 474,972 $ (15,336 ) Non-agency residential mortgage-backed securities — — 148 (1 ) 148 (1 ) Collateralized loan obligations 104,334 (266 ) — — 104,334 (266 ) Total securities available-for-sale $ 109,214 $ (301 ) $ 470,240 $ (15,302 ) $ 579,454 $ (15,603 ) The Company did not record other-than-temporary-impairment (OTTI) for investment securities for the three and six months ended June 30, 2018 or 2017 . At June 30, 2018 , the Company’s securities available-for-sale portfolio consisted of 168 securities, 76 of which were in an unrealized loss position. At December 31, 2017 , the Company’s securities available-for-sale portfolio consisted of 191 securities, 33 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, 2018 , 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 liquidity, and not credit quality. The Company believes there was no OTTI as of June 30, 2018 and does not have the intent to sell its securities in an unrealized loss position and it is not likely that it will be required to sell these securities before their anticipated recovery.

LOANS AND LEASES AND ALLOWANCE

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES	LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES The Company's loan and lease portfolio includes Non-Traditional Mortgage (NTM) loans. The Company’s NTM portfolio is comprised of three interest only products: Green Account Loans (Green Loans), which are a type of home equity lines of credit (HELOCs), fixed or adjustable rate hybrid interest only mortgage (Interest Only) loans and a small number of additional loans with the potential for negative amortization. The following table presents the balances in the Company’s loans and leases portfolio as of the dates indicated: ($ in thousands) NTM Loans Traditional Loans and Leases Total Loans and Leases Receivable June 30, 2018 Commercial: Commercial and industrial $ — $ 1,742,559 $ 1,742,559 Commercial real estate — 793,855 793,855 Multifamily — 1,959,965 1,959,965 SBA — 78,092 78,092 Construction — 211,110 211,110 Lease financing — — — Consumer: Single family residential mortgage 815,374 1,358,809 2,174,183 Other consumer 3,502 72,738 76,240 Total loans and leases $ 818,876 $ 6,217,128 $ 7,036,004 Allowance for loan and lease losses (56,678 ) Loans and leases receivable, net $ 6,979,326 December 31, 2017 Commercial: Commercial and industrial $ — $ 1,701,951 $ 1,701,951 Commercial real estate — 717,415 717,415 Multifamily — 1,816,141 1,816,141 SBA — 78,699 78,699 Construction — 182,960 182,960 Lease financing — 13 13 Consumer: Single family residential mortgage 803,355 1,252,294 2,055,649 Other consumer 3,578 103,001 106,579 Total loans and leases $ 806,933 $ 5,852,474 $ 6,659,407 Allowance for loan and lease losses (49,333 ) Loans and leases receivable, net $ 6,610,074 Non-Traditional Mortgage Loans The following table presents the composition of the NTM portfolio as of the dates indicated: June 30, 2018 December 31, 2017 ($ in thousands) Count Amount Percent Count Amount Percent Green Loans (HELOC) - first liens 96 $ 72,720 8.9 % 101 $ 82,197 10.2 % Interest-only - first liens 495 739,053 90.3 % 468 717,484 88.9 % Negative amortization 11 3,601 0.4 % 11 3,674 0.5 % Total NTM - first liens 602 815,374 99.6 % 580 803,355 99.6 % Green Loans (HELOC) - second liens 12 3,502 0.4 % 12 3,578 0.4 % Total NTM - second liens 12 3,502 0.4 % 12 3,578 0.4 % Total NTM loans 614 $ 818,876 100.0 % 592 $ 806,933 100.0 % Total loans and leases $ 7,036,004 $ 6,659,407 % of NTM to total loans and leases 11.6 % 12.1 % Green Loans Green Loans are SFR first and second mortgage lines of credit with a linked checking account that allows all types of deposits and withdrawals to be performed. The loans are generally interest only with a 15 -year balloon payment due at maturity. As a result of their unique payment feature, Green Loans possess higher credit risk due to the potential for negative amortization; however, management believes the risk is mitigated through the Company’s loan terms and underwriting standards, including its policies on loan-to-value (LTV) ratios and the Company’s contractual ability to curtail loans when the value of the underlying collateral declines. The Company discontinued origination of the Green Loan products in 2011. Interest Only Loans Interest only loans are primarily SFR first mortgage loans with payment features that allow interest only payments in initial periods before converting to a fully amortizing loan. Loans with the Potential for Negative Amortization The Company discontinued origination of negative amortization loans in 2007. Negative amortization loans other than Green Loans pose a potentially higher credit risk because of the lack of principal amortization and potential for negative amortization; however, management believes the risk is mitigated through the loan terms and underwriting standards, including the Company’s policies on LTV ratios. Allowance for Loan and Lease Losses The Company has established credit risk management processes that include regular management review of the loan and lease portfolio to identify problem loans and leases. During the ordinary course of business, management becomes aware of borrowers and lessees who may not be able to fulfill the contractual payment requirements of the loan and lease agreements. Such loans and leases 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 partially or fully charging off of the principal balance. The Company maintains the ALLL at a level that is considered adequate to cover the estimated inherent risks in the loan and lease portfolio. The Company also maintains a separate reserve for unfunded loan commitments at a level that is considered adequate to cover the estimated inherent risks. The estimated funding of the loan commitments and credit risk factors determined based on outstanding loans that share similar credit risk exposure are used to determine the adequacy of the reserve. At June 30, 2018 and December 31, 2017 , the reserve for unfunded loan commitments was $4.0 million and $3.7 million , respectively. The credit risk monitoring system is designed to identify impaired and potential problem loans and to perform periodic evaluation of impairment and the adequacy of the allowance for credit losses in a timely manner. In addition, the Board of Directors of the Bank has adopted a credit policy that includes a credit review and control system that it believes is effective in ensuring that the Company maintains an adequate allowance for loan and lease losses. The Board of Directors also provides oversight and guidance for management’s allowance evaluation process. During the three months ended March 31, 2017, the Company, as part of its continuous evaluation of the ALLL methodology and assumptions, determined that it was appropriate to change from a rolling 28 -quarter look-back period to a cumulative look-back period with a pegged (fixed) starting point (the quarter ended March 31, 2008). The Company believes that an extended period of observed credit loss stability warranted the review of a longer historical period that captured a full credit cycle. The Company further enhanced the methodology in the areas of qualitative adjustments and loan segmentation during the second quarter of 2017, and performed an annual update of the loss emergence period during the third quarter of 2017. These updates were designed to be systematic, transparent, and repeatable. The updates on qualitative adjustments and loan segmentation did not have a material impact. The following table presents a summary of activity in the ALLL for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 54,763 $ 42,736 $ 49,333 $ 40,444 Loans and leases charged off (950 ) (2,898 ) (15,589 ) (3,255 ) Recoveries of loans and leases previously charged off 212 44 782 110 Provision for loan and lease losses 2,653 2,503 22,152 5,086 Balance at end of period $ 56,678 $ 42,385 $ 56,678 $ 42,385 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 $15.0 million line of credit that was originated during the three months ended March 31, 2018. Subsequent to the granting of the line of credit, representations from the borrower in applying for the line of credit were determined by the Bank to be false, and third party bank account statements provided by the borrower to secure the line of credit were found to be fraudulent. The line of credit was granted after the borrower appeared to have satisfied a pre-condition that the line of credit be fully cash collateralized and secured by a bank account at a third party financial institution pledged to the Bank. As part of the Bank’s credit review and portfolio management process, the line of credit and disbursements were reviewed subsequent to closing and compliance with the borrower’s covenants was monitored. As part of this process, on March 9, 2018, the Bank received information that caused it to believe the existence of the pledged bank account had been misrepresented by the borrower and that the account had previously been closed. The Bank filed an action in federal court pursuing the borrower and other parties and is also considering other available sources of collection and other potential means of mitigating the loss; however, no assurance can be given that it will be successful in this regard. Upon extensive review of the underwriting process for this loan, the Bank determined that this loan was the result of an isolated event of external fraud. The following table presents the activity and balance in the ALLL and the recorded investment, excluding accrued interest, in loans and leases based on the impairment methodology as of or for the three and six months ended June 30, 2018 : ($ 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 Provision (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 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 the activity and balance in the ALLL and the recorded investment, excluding accrued interest, in loans and leases based on the impairment methodology as of or for the three and six months ended June 30, 2017 : ($ 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, 2017 $ 10,888 $ 4,543 $ 11,029 $ 1,146 $ 3,018 $ 5 $ 11,240 $ 867 $ 42,736 Charge-offs (132 ) (113 ) — (293 ) (29 ) — (2,331 ) — (2,898 ) Recoveries — — — 31 — 10 — 3 44 Provision (261 ) 696 (343 ) 200 (15 ) (12 ) 2,100 138 2,503 Balance at June 30, 2017 $ 10,495 $ 5,126 $ 10,686 $ 1,084 $ 2,974 $ 3 $ 11,009 $ 1,008 $ 42,385 Balance at December 31, 2016 $ 7,584 $ 5,467 $ 11,376 $ 939 $ 2,015 $ 6 $ 12,075 $ 982 $ 40,444 Charge-offs (382 ) (113 ) — (293 ) (29 ) — (2,412 ) (26 ) (3,255 ) Recoveries — — — 74 — 29 1 6 110 Provision 3,293 (228 ) (690 ) 364 988 (32 ) 1,345 46 5,086 Balance at June 30, 2017 $ 10,495 $ 5,126 $ 10,686 $ 1,084 $ 2,974 $ 3 $ 11,009 $ 1,008 $ 42,385 Individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ 424 $ — $ 424 Collectively evaluated for impairment 10,495 5,121 10,686 1,065 2,974 3 10,585 1,008 41,937 Acquired with deteriorated credit quality — 5 — 19 — — — — 24 Total ending ALLL balance $ 10,495 $ 5,126 $ 10,686 $ 1,084 $ 2,974 $ 3 $ 11,009 $ 1,008 $ 42,385 Loans: Individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ 9,971 $ 873 $ 10,844 Collectively evaluated for impairment 1,560,264 715,650 1,545,888 74,726 156,246 173 1,768,565 119,680 5,941,192 Acquired with deteriorated credit quality 652 1,121 — 2,528 — — — — 4,301 Total ending loan balances $ 1,560,916 $ 716,771 $ 1,545,888 $ 77,254 $ 156,246 $ 173 $ 1,778,536 $ 120,553 $ 5,956,337 The following table presents loans and leases individually evaluated for impairment by class of loans and leases 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 leases and net of any deferred fees and costs and any purchase premium or discount. June 30, 2018 December 31, 2017 ($ in thousands) Unpaid Principal Balance Recorded Investment Allowance for Loan and Lease Losses Unpaid Principal Balance Recorded Investment Allowance for Loan and Lease Losses With no related ALLL recorded: Commercial: Commercial and industrial $ 5,270 $ 5,234 $ — $ 471 $ 453 $ — SBA 554 522 — 342 335 — Consumer: Single family residential mortgage 3,989 3,995 — 7,521 7,553 — Other consumer 554 557 — 4,664 4,663 — With an ALLL recorded: Commercial: Commercial and industrial 596 595 595 3,146 3,129 498 SBA 137 124 124 635 609 435 Consumer: Single family residential mortgage 16,042 16,145 461 7,090 7,146 277 Other consumer 220 193 8 157 162 7 Total $ 27,362 $ 27,365 $ 1,188 $ 24,026 $ 24,050 $ 1,217 The following table presents information on impaired loans and leases, 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, 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 June 30, 2017 Commercial: Construction — — — 764 — — Consumer: Single family residential mortgage 9,985 42 46 10,520 85 89 Other consumer 878 2 2 884 4 3 Total $ 10,863 $ 44 $ 48 $ 12,168 $ 89 $ 92 Past Due Loans and Leases The following table presents the aging of the recorded investment in past due loans and leases, excluding accrued interest receivable (which is not considered to be material), by class of loans and leases 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, 2018 NTM loans: Single family residential mortgage $ 790 $ 694 $ — $ 1,484 $ 813,890 $ 815,374 Other consumer — — — — 3,502 3,502 Total NTM loans 790 694 — 1,484 817,392 818,876 Traditional loans and leases: Commercial: Commercial and industrial 2,075 3,509 597 6,181 1,736,378 1,742,559 Commercial real estate — — — — 793,855 793,855 Multifamily — — — — 1,959,965 1,959,965 SBA 138 524 798 1,460 76,632 78,092 Construction 467 — — 467 210,643 211,110 Consumer: Single family residential mortgage 2,647 2,422 9,795 14,864 1,343,945 1,358,809 Other consumer 1,831 — 263 2,094 70,644 72,738 Total traditional loans and leases 7,158 6,455 11,453 25,066 6,192,062 6,217,128 Total $ 7,948 $ 7,149 $ 11,453 $ 26,550 $ 7,009,454 $ 7,036,004 December 31, 2017 NTM loans: Single family residential mortgage $ 9,060 $ 1,879 $ 1,171 $ 12,110 $ 791,245 $ 803,355 Other consumer — — — — 3,578 3,578 Total NTM loans 9,060 1,879 1,171 12,110 794,823 806,933 Traditional loans and leases: Commercial: Commercial and industrial 136 3,595 948 4,679 1,697,272 1,701,951 Commercial real estate — — — — 717,415 717,415 Multifamily — — — — 1,816,141 1,816,141 SBA 3,578 — 1,319 4,897 73,802 78,699 Construction — — — — 182,960 182,960 Lease financing — — — — 13 13 Consumer: Single family residential mortgage 6,862 3,370 6,012 16,244 1,236,050 1,252,294 Other consumer 3,194 413 92 3,699 99,302 103,001 Total traditional loans and leases 13,770 7,378 8,371 29,519 5,822,955 5,852,474 Total $ 22,830 $ 9,257 $ 9,542 $ 41,629 $ 6,617,778 $ 6,659,407 Non-accrual Loans and Leases The following table presents non-accrual loans and leases, and loans past due 90 days or more and still accruing as of the dates indicated: June 30, 2018 December 31, 2017 ($ in thousands) NTM Loans Traditional Loans and Leases Total NTM Loans Traditional Loans and Leases Total Non-accrual loans and leases (1) Commercial: Commercial and industrial $ — $ 5,920 $ 5,920 $ — $ 3,723 $ 3,723 SBA — 1,082 1,082 — 1,781 1,781 Consumer: Single family residential mortgage 1,538 13,294 14,832 1,171 8,176 9,347 Other consumer — 456 456 — 4,531 4,531 Total non-accrual loans and leases $ 1,538 $ 20,752 $ 22,290 $ 1,171 $ 18,211 $ 19,382 Loans past due 90 days or more and still accruing $ — $ — $ — $ — $ — $ — (1) The Company maintained specific reserves in ALLL for these loans, which were individually evaluated for impairment, of $1.1 million and $1.1 million at June 30, 2018 and December 31, 2017 , respectively. Loans in Process of Foreclosure At June 30, 2018 and December 31, 2017 , SFR mortgage loans of $2.6 million and $4.3 million , respectively, were in the process of foreclosure. Troubled Debt Restructurings A modification of a loan constitutes a troubled debt restructuring (TDR) when the Company, for economic or legal reasons related to a borrower’s financial difficulties, grants a concession to the borrower that it would not otherwise consider. The concessions may be granted in various forms, including reduction in the stated interest rate, reduction in the amount of principal amortization, forgiveness of a portion of the loan balance or accrued interest, or extension of the maturity date. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. This evaluation is performed under the Company’s internal underwriting policy. TDR loans consist of the following as of the dates indicated: June 30, 2018 December 31, 2017 ($ in thousands) NTM Loans Traditional Loans Total NTM Loans Traditional Loans Total Commercial: Commercial and industrial $ — $ 2,746 $ 2,746 $ — $ 2,675 $ 2,675 Consumer: Single family residential mortgage 2,683 2,626 5,309 2,699 2,653 5,352 Other consumer 294 — 294 294 — 294 Total $ 2,977 $ 5,372 $ 8,349 $ 2,993 $ 5,328 $ 8,321 The Company had no commitments to lend to customers with outstanding loans that were classified as TDRs as of June 30, 2018 or December 31, 2017 . 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, 2018 Commercial: Commercial and industrial — $ — $ — 2 $ 171 $ 163 Total — — — 2 $ 171 $ 163 June 30, 2017 Consumer: Single family residential mortgage 1 1,150 1,160 3 2,416 2,433 Total 1 $ 1,150 $ 1,160 3 $ 2,416 $ 2,433 During the three months ended June 30, 2018 , there were no new TDRs. The following table summarizes new TDRs by modification type for the three months ended June 30, 2017 : 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, 2017 Consumer: Single family residential mortgage 1 $ 1,160 — $ — 1 $ 1,160 Total 1 $ 1,160 — $ — 1 $ 1,160 The following table summarizes new TDRs by modification type for the six months ended June 30, 2018 and 2017 : 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, 2018 Commercial: Commercial and industrial — $ — 2 $ 163 2 $ 163 Total — — 2 $ 163 2 163 June 30, 2017 Consumer: Single family residential mortgage 2 $ 1,290 1 $ 1,143 3 $ 2,433 Total 2 $ 1,290 1 $ 1,143 3 $ 2,433 For the three and six months ended June 30, 2018 , there was one loan with a principal balance of $100 thousand that was modified as a TDR during the past 12 months that had payment defaults during the period. For the three months ended June 30, 2017 , there were no loans that were modified as TDRs during the past 12 months that had payment defaults during the period. For the six months ended June 30, 2017 , there was one loan with a principal balance of $124 thousand that was modified as a TDR during the past 12 months that had payment defaults during the period. Credit Quality Indicators The Company categorizes loans and leases 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 and leases individually by classifying the loans and leases as to credit risk. This analysis includes all loans and leases delinquent over 60 days and non-homogeneous loans and leases such as commercial and commercial real estate loans and leases. The Company uses the following definitions for risk ratings: Pass : Loans and leases 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 and leases 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 and leases 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 and leases 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 and leases 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 and leases as of the dates indicated: ($ in thousands) Pass Special Mention Substandard Doubtful Total June 30, 2018 NTM loans: Single family residential mortgage $ 811,273 $ 1,577 $ 2,524 $ — $ 815,374 Other consumer 3,502 — — — 3,502 Total NTM loans 814,775 1,577 2,524 — 818,876 Traditional loans and leases: Commercial: Commercial and industrial 1,680,576 16,618 45,365 — 1,742,559 Commercial real estate 778,948 10,798 4,109 — 793,855 Multifamily 1,958,352 — 1,613 — 1,959,965 SBA 70,266 934 6,612 280 78,092 Construction 208,017 2,498 595 — 211,110 Lease financing — — — — — Consumer: Single family residential mortgage 1,338,747 3,846 16,216 — 1,358,809 Other consumer 71,949 315 474 — 72,738 Total traditional loans and leases 6,106,855 35,009 74,984 280 6,217,128 Total $ 6,921,630 $ 36,586 $ 77,508 $ 280 $ 7,036,004 December 31, 2017 NTM loans: Single family residential mortgage $ 800,589 $ 1,595 $ 1,171 $ — $ 803,355 Other consumer 3,578 — — — 3,578 Total NTM loans 804,167 1,595 1,171 — 806,933 Traditional loans and leases: Commercial: Commercial and industrial 1,651,628 33,376 16,947 — 1,701,951 Commercial real estate 713,131 — 4,284 — 717,415 Multifamily 1,815,601 540 — — 1,816,141 SBA 72,417 1,555 4,621 106 78,699 Construction 182,960 — — — 182,960 Lease financing 13 — — — 13 Consumer: Single family residential mortgage 1,240,866 2,282 9,146 — 1,252,294 Other consumer 98,030 422 4,549 — 103,001 Total traditional loans and leases 5,774,646 38,175 39,547 106 5,852,474 Total $ 6,578,813 $ 39,770 $ 40,718 $ 106 $ 6,659,407 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 of 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 and leases, excluding loans held-for-sale, for the three and six months ended June 30, 2018 and 2017 . The following table presents loans and leases 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, 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 ) June 30, 2017 Commercial: Commercial and industrial $ — $ (3,924 ) $ — $ (3,924 ) Commercial real estate — (1,329 ) — (1,329 ) Multifamily $ — $ — $ — $ (6,583 ) SBA — (1,865 ) — (1,865 ) Construction — (1,528 ) — (1,528 ) Consumer: Single family residential mortgage — (168,043 ) — (403,747 ) Total $ — $ (176,689 ) $ — $ (418,976 ) Purchased Credit Impaired Loans The Company had no PCI loans at June 30, 2018 or December 31, 2017 , due mainly to the sale of seasoned SFR mortgage PCI loans during the year ended December 31, 2017 . The Company had acquired loans through business combinations and purchases of loan pools for which there was evidence of deterioration of credit quality subsequent to origination and it was probable, at acquisition, that all contractually required payments would not be collected. The following table presents a summary of accretable yield, or income expected to be collected, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ — $ 38,691 $ — $ 41,181 Accretion of income — (1,884 ) — (3,833 ) Changes in expected cash flows — — — (225 ) Disposals — (34,570 ) — (34,886 ) Balance at end of period $ — $ 2,237 $ — $ 2,237 During the three months ended June 30, 2017, the Company transferred seasoned SFR mortgage PCI loans with an aggregate unpaid principal balance and aggregate carrying value of $147.5 million and $128.4 million , respectively, to loans held-for-sale. The Company transferred these PCI loans at lower of cost or fair value and recorded a fair value adjustment of $274 thousand against its ALLL. During the three months ended September 30, 2017, all of the transferred seasoned SFR mortgage PCI loans were sold and the Company recognized a net gain on sale of loans of $3.7 million .

SERVICING RIGHTS

SERVICING RIGHTS	6 Months Ended
	Jun. 30, 2018
Transfers and Servicing [Abstract]
SERVICING RIGHTS	SERVICING RIGHTS The Company retains MSRs from certain of its sales of residential mortgage loans. MSRs on residential mortgage loans are reported at fair value. Income earned by the Company on its MSRs is derived primarily from contractually specified mortgage servicing fees and late fees, net of curtailment costs and third party subservicing costs. The Company retains servicing rights in connection with its SBA loan operations, which are measured using the amortization method. The following table presents a composition of total income from servicing rights, which is reported in Loan Servicing Income on the Consolidated Statements of Operations, on a consolidated operations basis, for the three and six months ended June 30, 2018 and 2017 : Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Servicing fees for sold loans with servicing retained $ 909 $ 4,621 $ 4,140 $ 10,831 Losses on the fair value and runoff of servicing rights 39 (4,489 ) (881 ) (6,392 ) Total income from servicing rights $ 948 $ 132 $ 3,259 $ 4,439 During the three months ended March 31, 2017, the Company suspended sales of MSRs under a flow-agreement with a third party investor that occurred contemporaneous with SFR mortgage loan sales to GSEs. The Company does not expect to resume sales under the flow-agreement, as the Company has discontinued its mortgage banking activities. During the three and six months ended June 30, 2018, the Company sold $2.6 million and $28.5 million , respectively, of MSRs on approximately $334.1 million and $3.55 billion , respectively, in unpaid principal balances of conventional agency mortgage loans for cash consideration of $2.7 million and $30.1 million , respectively, subject to adjustment under certain circumstances. The sale of MSRs resulted in a loss of $155 thousand and $2.5 million for the three and six months ended June 30, 2018, respectively, primarily related to transaction costs, provision for early repayments of loans, and expected repurchase obligations under standard representations and warranties. The following table presents a composition of servicing rights, on a consolidated operations basis, as of the dates indicated: ($ in thousands) June 30, 2018 December 31, 2017 Mortgage servicing rights, at fair value $ 2,062 $ 31,852 SBA servicing rights, at amortized cost 1,807 1,856 Total $ 3,869 $ 33,708 Mortgage loans sold with servicing retained are subserviced by a third party vendor. The unpaid principal balance of these loans at June 30, 2018 and December 31, 2017 was $233.2 million and $3.94 billion , respectively. Custodial escrow balances maintained in connection with serviced loans were $367 thousand and $17.8 million at June 30, 2018 and December 31, 2017 , respectively. The unpaid principal balance of the loans underlying our SBA servicing rights at June 30, 2018 and December 31, 2017 was $100.7 million and $101.0 million , respectively. Mortgage Servicing Rights At June 30, 2018 and December 31, 2017 , MSRs of $70 thousand and $29.8 million , respectively, were held for sale and valued based on a market bid adjusted for expected repurchase obligations under standard representations and warranties as a Level 3 fair value measurement. The value of retained MSRs is generally estimated based on a valuation from a third party provider that calculates the present value of the expected net servicing income from the portfolio based on key factors that include interest rates, prepayment assumptions, discount rate and estimated cash flows. The following table presents the key characteristics, inputs and economic assumptions used to estimate the fair value of the MSRs as of the dates indicated: ($ in thousands) June 30, 2018 December 31, 2017 Fair value of retained MSRs $ 1,992 $ 2,059 Discount rate 13.00 % 13.00 % Constant prepayment rate 16.44 % 16.54 % Weighted-average life 5.08 years 5.07 years The following table presents activity in the MSRs, on a consolidated operations basis, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 4,953 $ 42,833 $ 31,852 $ 76,121 Additions — 3,751 — 11,552 Sales of servicing rights (1) (2,570 ) — (28,549 ) (39,186 ) Changes in fair value resulting from valuation inputs or assumptions (216 ) (3,035 ) (1,090 ) (3,079 ) Other (105 ) (1,440 ) (151 ) (3,299 ) Balance at end of period $ 2,062 $ 42,109 $ 2,062 $ 42,109 (1) Includes $37.8 million of MSRs sold as a part of discontinued operations for the six months ended June 30, 2017. SBA Servicing Rights The Company used a discount rate of 9.00 percent to calculate the present value of cash flows and used available prepayment data to estimate prepayment speed. Discount rates and prepayment speeds are reviewed quarterly and adjusted as appropriate. The following table presents activity in the SBA servicing rights for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 1,786 $ 1,618 $ 1,856 $ 1,496 Additions 109 160 109 346 Amortization, including prepayments (83 ) (53 ) (153 ) (100 ) Impairment (5 ) — (5 ) (17 ) Balance at end of period $ 1,807 $ 1,725 $ 1,807 $ 1,725

OTHER REAL ESTATE OWNED

OTHER REAL ESTATE OWNED	6 Months Ended
	Jun. 30, 2018
Real Estate Owned, Disclosure of Detailed Components [Abstract]
OTHER REAL ESTATE OWNED	OTHER REAL ESTATE OWNED The following table presents the activity in OREO for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 1,024 $ 3,345 $ 1,796 $ 2,502 Additions 434 632 434 1,803 Sales and net direct write-downs (992 ) (710 ) (1,711 ) (1,035 ) Net change in valuation allowance 244 — 191 (3 ) Balance at end of period $ 710 $ 3,267 $ 710 $ 3,267 The following table presents the activity in the OREO valuation allowance included in All Other Expense in the Consolidated Statements of Operations for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 295 $ 9 $ 242 $ 6 Additions — — 143 9 Recoveries — — (90 ) — Net direct write-downs and removals from sale (244 ) — (244 ) (6 ) Balance at end of period $ 51 $ 9 $ 51 $ 9 The following table presents expenses related to foreclosed assets included in All Other Expense in the Consolidated Statements of Operations for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Net gain (loss) on sales $ (61 ) $ 36 $ 3 $ 31 Operating expenses, net of rental income (54 ) (9 ) (102 ) (13 ) Total $ (115 ) $ 27 $ (99 ) $ 18 The Company did not provide loans to finance the purchase of its OREO properties during the three and six months ended June 30, 2018 or 2017 .

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS, NET	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS, NET	GOODWILL AND OTHER INTANGIBLE ASSETS, NET At June 30, 2018 and December 31, 2017 , the Company had goodwill of $37.1 million . The Company conducts its evaluation of 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 as of August 31, 2017 and determined that no goodwill impairment existed. At December 31, 2016, goodwill of $37.1 million and $2.1 million was allocated to the Commercial Banking and Mortgage Banking segments, respectively. During the three months ended March 31, 2017, the Company discontinued its mortgage banking operations and wrote off the goodwill of $2.1 million allocated to its Mortgage Banking segment, against the gain on disposal of discontinued operations. See Note 2 for additional information. Core deposit intangibles are amortized over their useful lives ranging from 4 to 10 years . As of June 30, 2018 , the weighted average remaining amortization period for core deposit intangibles was approximately 5.7 years . ($ in thousands) Gross Carrying Value Accumulated Amortization Net Carrying Value June 30, 2018 Core deposit intangibles $ 30,904 $ 23,221 $ 7,683 December 31, 2017 Core deposit intangibles $ 30,904 $ 21,551 $ 9,353 Aggregate amortization of intangible assets was $827 thousand and $1.1 million for the three months ended June 30, 2018 and 2017 , respectively, and $1.7 million and $2.1 million for the six months ended June 30, 2018 and 2017 , respectively. The following table presents estimated future amortization expenses as of June 30, 2018 : ($ in thousands) Remainder of 2018 2019 2020 2021 2022 and After Total Estimated future amortization expense $ 1,337 $ 2,195 $ 1,518 $ 1,081 $ 1,552 $ 7,683 During the three months ended March 31, 2017, the Company wrote off a customer relationship intangible of $246 thousand and a trade name intangible of $90 thousand related to RenovationReady. RenovationReady was acquired in 2014 and provided specialized loan services to financial institutions and mortgage bankers that originate agency eligible residential renovation and construction loan products. During the three months ended March 31, 2017, the customer relationships with the third party buyers of residential renovation loans were transferred to Caliber and the Company ceased utilizing the RenovationReady trade name.

FEDERAL HOME LOAN BANK ADVANCES

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS	6 Months Ended
	Jun. 30, 2018
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, 2018 December 31, 2017 Fixed rate: Outstanding balance $ 1,030,000 $ 550,000 Interest rates ranging from 1.23 % 1.23 % Interest rates ranging to 3.32 % 3.00 % Weighted average interest rate 2.40 % 2.02 % Variable rate: Outstanding balance 775,000 1,145,000 Weighted average interest rate 2.07 % 1.40 % Each advance is payable at its maturity date. Advances paid early are subject to a prepayment penalty. At June 30, 2018 and December 31, 2017 , the Bank’s advances from the FHLB were collateralized by certain real estate loans with an aggregate unpaid principal balance of $3.58 billion and $2.90 billion , respectively, and securities with carrying values of $397.0 million and $405.6 million , respectively. The Bank’s investment in capital stock of the FHLB of San Francisco totaled $48.7 million and $48.7 million at June 30, 2018 and December 31, 2017 , respectively. Based on this collateral, the Bank's financing availability, and the Bank’s holdings of FHLB stock, the Bank was eligible to borrow an additional $803.8 million at June 30, 2018 . The Bank maintained a line of credit of $61.7 million from the Federal Reserve Discount Window, to which the Bank pledged securities with a carrying value of $85.2 million with no outstanding borrowings at June 30, 2018 . The Bank maintained available unsecured federal funds lines with correspondent banks totaling $210.0 million at June 30, 2018 . The Bank also maintained repurchase agreements and had no outstanding securities sold under agreements to repurchase at June 30, 2018 and December 31, 2017 . Availabilities and terms on repurchase agreements are subject to the counterparties' discretion and pledging additional investment securities. On June 30, 2017, the Company voluntarily terminated a line of credit of $75.0 million that was maintained at the holding company level with an unaffiliated financial institution. The line had a maturity date of July 17, 2017 and a floating interest rate equal to a London Interbank Offered Rate (LIBOR) rate plus 2.25 percent or The Wall Street Journal’s prime rate (Prime Rate). The Company had $50.0 million of borrowings outstanding under the line, which were repaid in connection with the termination of the line. The proceeds of the line were used for working capital purposes.

LONG-TERM DEBT

LONG-TERM DEBT	6 Months Ended
	Jun. 30, 2018
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, 2018 December 31, 2017 ($ in thousands) Par Value Discount Par Value Discount 5.25% senior notes due April 15, 2025 $ 175,000 $ (1,983 ) $ 175,000 $ (2,059 ) Total $ 175,000 $ (1,983 ) $ 175,000 $ (2,059 ) 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 discounts 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), 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. Tangible Equity Units – Junior Subordinated Amortizing Notes On May 21, 2014, the Company issued and sold $69.0 million of 8.00 percent tangible equity units (TEUs) in an underwritten public offering. A total of 1,380,000 TEUs were issued, including 180,000 TEUs issued to the underwriter upon exercise of its overallotment option, with each TEU having a stated amount of $50.00 . Each TEU was comprised of (i) a prepaid stock purchase contract (each a Purchase Contract) settled by delivery of a specified number of shares of Company Common Stock and (ii) a junior subordinated amortizing note due May 15, 2017 (each an Amortizing Note) that had an initial principal amount of $10.604556 per Amortizing Note, bore interest at a rate of 7.50 percent per annum and had a final installment payment date of May 15, 2017. The Purchase Contracts and Amortizing Notes were accounted for separately. The Purchase Contract component of the TEUs was recorded in Additional Paid in Capital in the Consolidated Statements of Financial Condition. The Amortizing Note component was recorded in Long Term Debt in the Consolidated Statements of Financial Condition. The relative fair values of the Amortizing Notes and Purchase Contracts were estimated to be approximately $14.6 million and $54.4 million , respectively, at the date of issuance. Total issuance costs associated with the TEUs were $4.0 million (including the underwriter discount of $3.3 million ), of which $857 thousand was allocated to the debt component and $3.2 million was allocated to the equity component of the TEUs. The portion of the issuance costs allocated to the debt component of the TEUs was amortized over the term of the Amortizing Notes. On each August 15, November 15, February 15 and May 15, commencing on August 15, 2014, the Company paid holders of Amortizing Notes equal quarterly cash installments of $1.00 per Amortizing Note (or, in the case of the installment payment due on August 15, 2014, $0.933333 per Amortizing Note) (such installments, the installment payments), which installment payments in the aggregate were equivalent to a 8.00 percent cash distribution per year with respect to each $50.00 stated amount of TEUs. Each installment payment constituted a payment of interest (at a rate of 7.50 percent per annum) and a partial repayment of principal on each Amortizing Note. On May 15, 2017, the Company made the final installment payment on the Amortizing Notes and all Purchase Contracts that had not previously been settled were settled. See Note 15 for additional information.

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES For the three months ended June 30, 2018 and 2017 , income tax expense (benefit) of continuing operations was $1.8 million and $(12.8) million , respectively, and the effective tax rate was 11.4 percent and (534.7) percent , respectively. For the six months ended June 30, 2018 and 2017 , income tax benefit of continuing operations, was $(4.6) million and $(19.2) million , respectively, and the effective tax rate was (28.0)% percent and (363.4)% percent, respectively. The Company recognized lower income tax benefits for the 2018 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 respectively, for the three and six months ended June 30, 2018 , compared to $15.7 million and $24.5 million , respectively, of tax credits recognized for the three and six months ended June 30, 2017 . The reduction in tax credits received by the Bank on the investments in alternative energy partnerships is due to less new equipment being placed into service by the investments. The lower income tax benefit was also partially offset by the decrease in the federal statutory tax rate from 35% to 21% as a result of H.R. 1, originally known (and referred to below) as the “Tax Cuts and Jobs Act”, which became effective on January 1, 2018. The Company uses the flow-through income statement method to account for the investment tax credits earned on the solar investments. Under this method, the 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 existence of any cumulative losses in the current year and the prior two years, the amount of taxes paid in available carry-back years, future taxable income and tax planning strategies. 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 $42.3 million and $31.1 million at June 30, 2018 and December 31, 2017 , respectively. The overall increase in net deferred tax assets was primarily due to a decrease of $3.0 million in deferred tax liabilities resulting from the sale of mortgage servicing rights and an increase of $10.4 million in deferred tax assets from the increase 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 $1.1 million and $1.0 million at June 30, 2018 and December 31, 2017 , 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, 2018 , the total unrecognized tax benefit that, if recognized, would impact the effective tax rate is $940 thousand . At June 30, 2018 and December 31, 2017 , 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 2014. The statute of limitations for the assessment of California Franchise taxes has expired for tax years before 2013 (other state income and franchise tax statutes of limitations vary by state). The Company early adopted ASU 2018-02 effective January 1, 2018. ASU 2018-02 permits companies to reclassify stranded tax effects due to the Tax Cuts and Jobs Act from accumulated other comprehensive income to retained earnings. As a result of the adoption, the Company recorded an increase in accumulated other comprehensive income of $496 thousand and reduced retained earnings by $496 thousand to eliminate the stranded tax effects at that date from the reduction in the federal statutory tax rate that was enacted in December 2017 and became effective January 1, 2018.

RESERVE FOR LOSS ON REPURCHASED

RESERVE FOR LOSS ON REPURCHASED LOANS	6 Months Ended
	Jun. 30, 2018
Mortgage Banking Activities [Abstract]
RESERVE FOR LOSS ON REPURCHASED LOANS	RESERVE FOR LOSS ON REPURCHASED LOANS The Company records a representation and warranty reserve representing its estimate of losses expected on mortgage loan repurchases or loss reimbursements attributable to underwriting or documentation defects on previously sold loans. The reserve for loss on repurchased loans is initially recorded at fair value against net revenue on mortgage banking activities at the time of sale, and any subsequent change in the reserve is recorded on the Consolidated Statements of Operations as an increase or decrease to the provision for loan repurchases (noninterest expense). The following table presents a summary of activity in the reserve for loss on repurchased loans for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 3,426 $ 8,118 $ 6,306 $ 7,974 Initial provision for loan repurchases 53 673 55 1,515 Subsequent change in the provision (218 ) (403 ) (2,006 ) (728 ) Utilization of reserve for loan repurchases (112 ) (360 ) (1,206 ) (733 ) Balance at end of period $ 3,149 $ 8,028 $ 3,149 $ 8,028 During the three and six months ended June 30, 2018 , reserve for loss on repurchased loans decreased by $277 thousand and $3.2 million , respectively. During the three months ended June 30, 2018 , the decrease was primarily due to methodology and data enhancements. During the six months ended June 30, 2018 , approximately $1.4 million of the decrease was due to portfolio run-off and repurchase settlement activities, and approximately $1.7 million of the decrease was due to methodology and data enhancements. The methodology and data enhancements were primarily a result of additional insights gained through the due diligence process pertaining to the MSR sale during the three months ended March 31, 2018 and utilization of the Company's actual run-off and historical loss data as opposed to industry data. The Company believes that its obligations for mortgage loan repurchases or loss reimbursements were adequately reserved for at June 30, 2018 .

DERIVATIVE INSTRUMENTS

DERIVATIVE INSTRUMENTS	6 Months Ended
	Jun. 30, 2018
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 agreements are intended to offset each other and allow the Company to retain the credit risk of the transaction with its customer in exchange for a fee. 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 Statement of Financial Condition. The changes in fair value are recorded in Other Income in the Consolidated Statements of Operations. For the three and six months ended June 30, 2018 and 2017 , changes in fair value recorded through Other Income in the Consolidated Statements of Operations were insignificant. 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, 2018 December 31, 2017 ($ in thousands) Notional Amount Fair Value Notional Amount Fair Value Included in assets: Interest rate swaps and caps on loans $ 92,779 $ 1,686 $ 70,486 $ 1,005 Total included in assets $ 92,779 $ 1,686 $ 70,486 $ 1,005 Included in liabilities: Interest rate swaps and caps on loans $ 92,779 $ 1,650 $ 70,486 1,033 Total included in liabilities $ 92,779 $ 1,650 $ 70,486 $ 1,033 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, beginning January 1, 2017, 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, 2018
Disclosure of Compensation Related Costs, Share-based Payments [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, 2018 , no awards had been made under the 2018 Omnibus Plan. On December 28, 2017, the Company initiated the termination of the Banc of California Capital and Liquidity Enhancement Employee Compensation Trust (the SECT) that was established to fund employee stock compensation and benefit obligations of the Company. See Note 15 for additional information. Share-based Compensation Expense The following table presents share-based compensation expense and the related tax benefits for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Stock options $ 80 $ 420 $ 113 $ 667 Restricted stock awards and units 1,708 4,378 3,762 6,982 Stock appreciation rights — — — 42 Total share-based compensation expense $ 1,788 $ 4,798 $ 3,875 $ 7,691 Related tax benefits $ 524 $ 1,992 $ 1,136 $ 3,195 The following table presents unrecognized share-based compensation expense as of June 30, 2018 : ($ in thousands) Unrecognized Expense Weighted-Average Remaining Expected Recognition Period Stock option awards $ 201 1.8 years Restricted stock awards and restricted stock units 11,865 2.7 years Total $ 12,066 2.7 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 the stock option by the option holder in an amount equal to the taxable income reported by the option holders. The option holder recognizes taxable income based on the closing market price immediately before the exercise date less the exercise price stated in the grant agreement. The following table represents stock option activity for the three months ended June 30, 2018 : Three Months Ended June 30, 2018 ($ 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 6.6 years $ 1,077 Outstanding at end of period 186,973 $ 13.54 6.3 years $ 1,123 Exercisable at end of period 113,649 $ 13.69 6.0 years $ 667 The following table represents stock option activity for the six months ended June 30, 2018 : Six Months Ended June 30, 2018 ($ 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 210,973 $ 13.99 7.0 years $ 1,405 Exercised (24,000 ) $ 17.50 8.2 years $ — Outstanding at end of period 186,973 $ 13.54 6.3 years $ 1,123 Exercisable at end of period 113,649 $ 13.69 6.0 years $ 667 The following table sets forth information regarding unvested stock options for the three and six months ended June 30, 2018 . Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Number of Shares Weighted-Average Exercise Price Per Share Number of Shares Weighted-Average Outstanding at beginning of period 105,432 $ 13.31 105,432 $ 13.31 Vested (32,108 ) $ 13.28 (32,108 ) $ 13.28 Outstanding at end of period 73,324 $ 13.32 73,324 $ 13.32 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 date of award. 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. 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, 2018 : Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 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 917,941 $ 18.91 911,633 $ 18.73 Granted (1) 539,084 $ 18.80 578,862 $ 18.84 Vested (1) (305,952 ) $ 19.17 (318,217 ) $ 19.01 Forfeited (1) (165,836 ) $ 18.24 (187,041 ) $ 18.27 Outstanding at end of period 985,237 $ 18.84 985,237 $ 18.84 (1) The number of granted shares/units includes aggregate performance-based shares of 289,301 and 306,801 for the three and six months ended June 30, 2018 , respectively. The number of vested shares includes aggregate performance-based shares of 44,817 and 44,817 for the three and six months ended June 30, 2018 , respectively. The number of forfeited shares includes aggregate performance-based shares of 41,782 and 47,420 for the three and six months ended June 30, 2018 , respectively. The vesting of these awards is subject to certain performance targets and goals being met. 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. Stock Appreciation Rights On August 21, 2012, the Company granted to Steven A. Sugarman, its then- (now former) chief executive officer a ten -year stock appreciation right (SAR) for 500,000 shares (Initial SAR) of the Company’s common stock with a base price of $12.12 per share with one-third of the Initial SAR vesting on the grant date and the remaining amount vesting over a period of 2 years . The Initial SAR entitles Mr. Sugarman to dividend equivalent rights and originally contained an anti-dilution provision pursuant to which additional SARs (Additional SARs) were issued to Mr. Sugarman upon certain stock issuances by the Company, as described below. On March 24, 2016, concurrent with entering into a new employment agreement with the Company, Mr. Sugarman entered into a letter agreement that eliminated this anti-dilution provision of the Initial SAR. Under the terms of the March 24, 2016 letter agreement, in consideration of the removal of the anti-dilution provision of the Initial SAR, the Company granted Mr. Sugarman a onetime performance based restricted stock award with an aggregate grant date fair market value of $5.0 million , which would vest in full on March 24, 2017, but was also subject to restrictions on sale or transfer through March 24, 2021. In connection with Mr. Sugarman’s resignation as the Company’s chief executive officer on January 23, 2017, all unvested equity awards (including any unvested SARs) immediately vested and became free of all restrictions. In addition, the SARs continued (and continue) to remain exercisable for their full terms, with dividend equivalent rights of the SARs also continuing in effect during their full terms. As described more fully in the SAR agreement, the original anti-dilution provision of the Initial SAR did not apply to certain issuances of the Company’s common stock for compensatory purposes, but did apply to certain other issuances of the Company’s common stock, including the issuances of common stock to raise capital. Pursuant to this anti-dilution provision, the Company issued Additional SARs to the former chief executive officer with a base price determined as of each date of issuance, but otherwise with the same terms and conditions as the Initial SAR, except for an Additional SAR granted relating to a public offering of the Company’s TEUs on May 21, 2014 that has different terms (Additional TEU SAR). Regarding the Additional TEU SAR, the TEU contained a Purchase Contract that could be settled in shares of the Company’s voting common stock based on a maximum settlement rate (subject to adjustment) and a minimum settlement rate (subject to adjustment) as more fully described under Note 15. The Additional TEU SAR was calculated using the initial maximum settlement rate and, therefore, the number of shares underlying the Additional TEU SAR was subject to adjustment and forfeiture if the aggregate number of shares of stock issued in settlement of any single Purchase Contract was less than the initial maximum settlement rate. By its original terms, the Additional TEU SAR was to vest in full on May 15, 2017 or accelerate in vesting upon early settlement of a Purchase Contract at the holders' option, and until it vested, the Additional TEU SAR was to have no dividend equivalent rights and the shares underlying the Additional TEU SAR were subject to forfeiture. The following table represents SARs activity as of and for the three months ended June 30, 2018 : Three Months Ended June 30, 2018 ($ 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 4.4 years $ 12,001 Outstanding at end of period 1,559,012 $ 11.60 4.1 years $ 12,390 Exercisable at end of period 1,559,012 $ 11.60 4.1 years $ 12,390 The following table represents SARs activity as of and for the six months ended June 30, 2018 : Six Months Ended June 30, 2018 ($ 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 4.6 years $ 14,105 Outstanding at end of period 1,559,012 $ 11.60 4.1 years $ 12,390 Exercisable at end of period 1,559,012 $ 11.60 4.1 years $ 12,390

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS’ EQUITY Warrants On November 1, 2010 , the Company issued warrants to TCW Shared Opportunity Fund V, L.P. for up to 240,000 shares of non-voting common stock at an original 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. These warrants were exercisable from the date of original issuance through November 1, 2015 . On August 3, 2015 , these warrants were exercised in full using a cashless (net) exercise, resulting in a net number of shares of non-voting common stock issued in the aggregate of 70,690 , which were immediately thereafter exchanged pursuant to a separate exchange agreement entered into on May 29, 2013 for an aggregate of 70,690 shares of voting common stock. Based on automatic adjustments to the original $11.00 exercise price, the exercise price at the time of exercise of the warrants was $9.13 per share. On November 1, 2010 , the Company also 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, 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 five 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 purchase 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 had 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 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. 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 $1,000 per share liquidation preference. The following table presents the Company's total outstanding preferred stock as of dates indicated: June 30, 2018 December 31, 2017 ($ 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 40,250 $ 40,250 $ 37,943 40,250 $ 40,250 $ 37,943 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 280,250 $ 280,250 $ 269,071 280,250 $ 280,250 $ 269,071 Stock Employee Compensation Trust On August 3, 2016, the Company established the SECT pursuant to the Trust Agreement, dated as of August 3, 2016 (the SECT Trust Agreement), between the Company and Newport Trust Company, as trustee (as successor trustee to Evercore Trust Company, N.A.) (the SECT Trustee) to fund employee compensation and benefit obligations of the Company using shares of the Company’s common stock. On August 3, 2016, the Company sold 2,500,000 shares of voting common stock to the SECT at a purchase price of $21.45 per share (the closing price of the voting common stock on August 2, 2016), or $53.6 million in the aggregate, in exchange for a cash amount equal to the aggregate par value of the shares and a promissory note for the balance of the purchase price. The SECT was to terminate on January 1, 2032 unless terminated earlier in accordance with the SECT Trust Agreement, including by the Company’s Board of Directors. On December 28, 2017, in order to effectuate the early termination of the SECT, as authorized by the Company’s Board of Directors, the Company purchased from the SECT all 2,500,000 shares of voting common stock held by the SECT at a purchase price of $21.00 per share (the closing price per share of the voting common stock on December 27, 2017), or $52.5 million in the aggregate (the SECT Termination Sale). Following the SECT Termination Sale, such shares of voting common stock were canceled. Of the proceeds from the SECT Termination Sale, $2.7 million will be utilized for the purpose of funding obligations under certain of the Company’s benefit plans to which 126,517 shares of voting common stock had been allocated prior to the SECT Termination Sale, and $49.8 million was remitted by the SECT Trustee to the Company, which was deemed to be in satisfaction and termination of all remaining obligations of the SECT under the promissory note, which had an outstanding principal balance of $50.9 million plus accrued interest. Tangible Equity Units - Prepaid Stock Purchase Contracts On May 21, 2014 , the Company completed an underwritten public offering of 1,380,000 of its tangible equity units (TEUs), which included 180,000 TEUs issued to the underwriter upon the full exercise of its over-allotment option, resulting in net proceeds of $65.0 million . The relative fair values of the Amortizing Notes and Purchase Contracts were estimated to be $14.6 million and $54.4 million , respectively, at the date of issuance. Total issuance costs associated with the TEUs were $4.0 million , of which $857 thousand was allocated to the debt component and $3.2 million was allocated to the equity component of the TEUs. Each TEU was comprised of a Purchase Contract and an Amortizing Note. The terms of the Purchase Contracts provided that unless settled early at the holder’s option as described below, on May 15, 2017, each Purchase Contract would automatically settle and the Company would deliver a number of shares of its voting common stock based on the then-applicable market value of the voting common stock, ranging from an initial minimum settlement rate of 4.4456 shares per Purchase Contract (subject to adjustment) if the applicable market value is equal to or greater than $11.247 per share to an initial maximum settlement rate of 5.1124 shares per Purchase Contract (subject to adjustment) if the applicable market value is less than or equal to $9.78 per share. From the first business day following the issuance of the TEUs, excluding the third business day immediately preceding May 15, 2017, a holder of a Purchase Contract could settle its Purchase Contract early, and the Company would deliver to the holder 4.4456 shares of voting common stock. On May 15, 2017, all Purchase Contracts that had not previously been settled early as described above were settled. The Company issued an aggregate of 6,134,988 shares of voting common stock pursuant to the Purchase Contracts. See Note 10 for additional information. Change in Accumulated Other Comprehensive Income (Loss) The Company’s Accumulated Other Comprehensive Income (Loss) includes unrealized gain (loss) on securities available-for-sale. Changes to Accumulated Other Comprehensive Income (Loss) are presented net of tax effect as a component of stockholders' equity. Reclassifications from Accumulated Other Comprehensive Income (Loss) are recorded in the Consolidated Statements of Operations either as a gain or loss. The following table presents changes to Accumulated Other Comprehensive Income (Loss) for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Unrealized gain (loss) on securities available-for-sale Balance at beginning of period $ (11,542 ) $ (9,702 ) $ 5,227 $ (9,042 ) Unrealized gain (loss) arising during the period (10,796 ) 10,923 (30,478 ) 13,149 Unrealized gain arising from the reclassification of securities held-to-maturity to securities available-for-sale — 21,990 — 21,990 Reclassification adjustment from other comprehensive income (278 ) (1,099 ) (5,519 ) (4,455 ) Tax effect of current period changes 3,246 (13,231 ) 10,904 (12,761 ) Total changes, net of taxes (7,828 ) 18,583 (25,093 ) 17,923 Reclassification of stranded tax effects to retained earnings — — 496 — Balance at end of period $ (19,370 ) $ 8,881 $ (19,370 ) $ 8,881

REGULATORY CAPITAL MATTERS

REGULATORY CAPITAL MATTERS	6 Months Ended
	Jun. 30, 2018
Banking and Thrift [Abstract]
REGULATORY CAPITAL MATTERS	REGULATORY CAPITAL MATTERS The following table presents the regulatory capital amounts and ratios for the Company and the Bank as of dates indicated: Minimum Capital Requirements Minimum Required to Be Well-Capitalized Under Prompt Corrective Action Provisions ($ in thousands) Amount Ratio Amount Ratio Amount Ratio June 30, 2018 Banc of California, Inc. Total risk-based capital $ 1,007,444 14.71 % $ 547,802 8.00 % N/A N/A Tier 1 risk-based capital 946,735 13.83 % 410,852 6.00 % N/A N/A Common equity tier 1 capital 677,664 9.90 % 308,139 4.50 % N/A N/A Tier 1 leverage 946,735 9.30 % 407,033 4.00 % N/A N/A Banc of California, NA Total risk-based capital $ 1,136,016 16.63 % $ 546,541 8.00 % $ 683,176 10.00 % Tier 1 risk-based capital 1,075,307 15.74 % 409,906 6.00 % 546,541 8.00 % Common equity tier 1 capital 1,075,307 15.74 % 307,429 4.50 % 444,065 6.50 % Tier 1 leverage 1,075,307 10.58 % 406,411 4.00 % 508,014 5.00 % December 31, 2017 Banc of California, Inc. Total risk-based capital $ 1,002,200 14.56 % $ 550,499 8.00 % N/A N/A Tier 1 risk-based capital 949,151 13.79 % 412,874 6.00 % N/A N/A Common equity tier 1 capital 682,539 9.92 % 309,656 4.50 % N/A N/A Tier 1 leverage 949,151 9.39 % 404,339 4.00 % N/A N/A Banc of California, NA Total risk-based capital $ 1,131,057 16.56 % $ 546,359 8.00 % $ 682,949 10.00 % Tier 1 risk-based capital 1,078,008 15.78 % 409,769 6.00 % 546,359 8.00 % Common equity tier 1 capital 1,078,008 15.78 % 307,327 4.50 % 443,917 6.50 % Tier 1 leverage 1,078,008 10.67 % 404,060 4.00 % 505,074 5.00 % In July 2013, the Federal banking regulators approved a final rule to implement the revised capital adequacy standards of the Basel Committee on Banking Supervision, commonly called Basel III, and to address relevant provisions of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the Dodd-Frank Act). The final rule strengthens the definition of regulatory capital, increases risk-based capital requirements, makes selected changes to the calculation of risk-weighted assets, and adjusts the prompt corrective action thresholds. The Company and the Bank became subject to the new rule on January 1, 2015 and certain provisions of the new rule will be phased in through 2019. The final rule: • Permits banking organizations that had less than $15 billion in total consolidated assets as of December 31, 2009, to include in Tier 1 capital trust preferred securities and cumulative perpetual preferred stock that were issued and included in Tier 1 capital prior to May 19, 2010, subject to a limit of 25 percent of Tier 1 capital elements, excluding any non-qualifying capital instruments and after all regulatory capital deductions and adjustments have been applied to Tier 1 capital. • Establishes new qualifying criteria for regulatory capital, including new limitations on the inclusion of deferred tax assets and mortgage servicing rights. • Requires a minimum ratio of common equity Tier 1 capital to risk-weighted assets of 4.5 percent. • Increases the minimum Tier 1 capital to risk-weighted assets ratio requirement from 4 percent to 6 percent. • Retains the minimum total capital to risk-weighted assets ratio requirement of 8 percent. • Retains a minimum leverage ratio requirement of 4 percent. • Changes the prompt corrective action standards so that in order to be considered well-capitalized, a depository institution must have a ratio of common equity Tier 1 capital to risk-weighted assets of 6.5 percent (new), a ratio of Tier 1 capital to risk-weighted assets of 8 percent (increased from 6 percent), a ratio of total capital to risk-weighted assets of 10 percent (unchanged), and a leverage ratio of 5 percent (unchanged). • Retains the existing regulatory capital framework for one-to-four family residential mortgage exposures. • Permits banking organizations that are not subject to the advanced approaches rule, such as the Company and the Bank, to retain, through a one-time election, the existing treatment for most accumulated other comprehensive income, such that unrealized gains and losses on securities available-for-sale will not affect regulatory capital amounts and ratios. • Implements a new capital conservation buffer requirement for a banking organization to maintain a common equity capital ratio more than 2.5 percent above the minimum common equity Tier 1 capital, Tier 1 capital and total risk-based capital ratios in order to avoid limitations on capital distributions, including dividend payments, and certain discretionary bonus payments. The capital conservation buffer requirement is being phased in, beginning on January 1, 2016 at 0.625 percent, with additional 0.625 percent increments annually, and will be fully phased in at 2.50 percent by January 1, 2019. A banking organization with a buffer of less than the required amount would be subject to increasingly stringent limitations on such distributions and payments as the buffer approaches zero. The new rule also generally prohibits a banking organization from making such distributions or payments during any quarter if its eligible retained income is negative and its capital conservation buffer ratio was 2.5 percent or less at the end of the previous quarter. The eligible retained income of a banking organization is defined as its net income for the four calendar quarters preceding the current calendar quarter, based on the organization’s quarterly regulatory reports, net of any distributions and associated tax effects not already reflected in net income. • Increases capital requirements for past due loans, high volatility commercial real estate exposures, and certain short-term commitments and securitization exposures. • Expands the recognition of collateral and guarantors in determining risk-weighted assets. • Removes references to credit ratings consistent with the Dodd-Frank Act and establishes due diligence requirements for securitization exposures.

VARIABLE INTEREST ENTITIES

VARIABLE INTEREST ENTITIES	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
VARIABLE INTEREST ENTITIES	VARIABLE INTEREST ENTITIES T he Company holds ownership interests in alternative energy partnerships, qualified affordable housing partnerships, and the SECT. 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 newly installed residential rooftop solar leases and 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 individual consumers 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 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 months ended June 30, 2018 and 2017 , the Company received a return of capital of $1.0 million and funded $13 thousand , respectively, from and into these partnerships and recognized a loss on investment of $1.8 million and $9.8 million , respectively, through its HLBV application. During the six months ended June 30, 2018 and 2017 , the Company received a return of capital of $1.0 million and funded $30.9 million , respectively, from and into these partnerships and recognized a loss on investment of $1.8 million and $18.4 million , respectively, through its HLBV application. As a result, the balance of these investments was $44.8 million and $37.6 million , respectively, at June 30, 2018 and 2017 . From an income tax benefit perspective, the Company recognized investment tax credits of $1.9 million and $15.7 million , respectively, during the three months ended June 30, 2018 and 2017 , and $9.2 million and $24.5 million , respectively, during the six months ended June 30, 2018 and 2017 , as well as income tax benefits relating to the recognition of its loss through its HLBV application during these periods. During the year ended December 31, 2017, the Company completed the funding on one of its two investments. While the Company had committed $100.0 million to the investment, the amount that was drawn down and funded by the Company was $62.8 million and the remaining $37.2 million of the commitment was canceled. During the three months ended June 30, 2018 , the Company reached the completion deadline of its remaining investment. While the Company had committed $100.0 million to the investment, the amount that was drawn down and funded by the Company was $49.9 million , of which $1.0 million was unused and returned to the Company, and the remaining $50.1 million of commitment was canceled. The following table represents the carrying value of the associated assets and liabilities and the associated maximum loss exposure for alternative energy partnerships as of the dates indicated: ($ in thousands) June 30, 2018 December 31, 2017 Cash $ 8,022 $ 16,518 Equipment, net of depreciation 265,752 246,297 Other assets 3,262 2,444 Total unconsolidated assets $ 277,036 $ 265,259 Total unconsolidated liabilities $ 6,073 $ 7,181 Maximum loss exposure $ 44,806 $ 98,910 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 $44.8 million , which was the investment balance of $44.8 million at June 30, 2018 . The Company believes that the loss exposure on its investment is reduced considering 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 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, 2018 and December 31, 2017 , the Company had a total investment in qualified affordable housing projects of $21.0 million and $22.0 million , respectively. During the three and six months ended June 30, 2018 , the Company funded $1.6 million and $1.6 million , respectively, and recognized proportional amortization expense of $477 thousand and $974 thousand , respectively. The Company has funded $15.3 million of its $29.3 million aggregated funding commitments and had an unfunded commitment of $14.0 million at June 30, 2018 . During the three and six months ended June 30, 2017 , the Company funded $2.0 million into qualified affordable housing projects and recognized proportional amortization expense of $604 thousand and $727 thousand , respectively. From an income tax benefit perspective, the Company recognized investment tax credits of $466 thousand and $432 thousand , respectively, during the three months ended June 30, 2018 and 2017 , and $941 thousand and $539 thousand , respectively, during the six months ended June 30, 2018 and 2017 . At June 30, 2018 and December 31, 2017 , 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 $21.0 million and $22.0 million , 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 Benefit in the Consolidated Statements of Operations. 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. Consolidated VIE On August 3, 2016, the Company established the SECT pursuant to the SECT Trust Agreement, dated as of August 3, 2016, between the Company and Newport Trust Company, as trustee (as successor trustee to Evercore Trust Company, N.A.) to fund employee compensation and benefit obligations of the Company using shares of the Company’s common stock. On August 3, 2016, the Company sold 2,500,000 shares of voting common stock to the SECT at a purchase price of $21.45 per share (the closing price of the voting common stock on August 2, 2016), or $53.6 million in the aggregate, in exchange for a cash amount equal to the aggregate par value of the shares and a promissory note for the balance of the purchase price. The SECT was to terminate on January 1, 2032 unless terminated earlier in accordance with the SECT Trust Agreement, including by the Company’s Board of Directors. On December 28, 2017, in order to effectuate the early termination of the SECT, as authorized by the Company’s Board of Directors, the Company purchased from the SECT all 2,500,000 shares of voting common stock held by the SECT at a purchase price of $21.00 per share (the closing price per share of the voting common stock on December 27, 2017), or $52.5 million in the aggregate. Following the SECT Termination Sale, such shares of voting common stock were canceled. Of the proceeds from the SECT Termination Sale, $2.7 million will be utilized for the purpose of funding obligations under certain of the Company’s benefit plans to which 126,517 shares of voting common stock had been allocated prior to the SECT Termination Sale, and $49.8 million was remitted by the SECT Trustee to the Company, which was deemed to be in satisfaction and termination of all remaining obligations of the SECT under the promissory note, which had an outstanding principal balance of $50.9 million plus accrued interest. The Company evaluated its interest in the SECT and determined that it was a VIE for which the Company was the primary beneficiary. As such, the SECT was consolidated by the Company. The entire amount of assets and liabilities of the SECT represented the transactions between the Company and the SECT. As a result, the note receivable on the Company and the note payable on the SECT were eliminated on a consolidated basis. All other transactions, such as note principal and dividend payments and receipts, were also eliminated on a consolidated basis, accordingly.

EARNINGS PER COMMON SHARE

EARNINGS PER COMMON SHARE	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
EARNINGS PER COMMON SHARE	EARNINGS PER COMMON SHARE 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 stock units, respectively, that were not considered in computing diluted earnings per common share, because they were anti-dilutive. There were no stock options that were anti-dilutive. For the three and six months ended June 30, 2017 , there were 44,875 and 49,946 stock units, respectively, and 120,000 and 229,923 stock options, respectively, that were anti-dilutive. The following table presents computations of basic and diluted EPS for the three and six months ended June 30, 2017 : Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 ($ in thousands except per share data) Common Stock Class B Common Stock Total Common Stock Class B Common Stock Total Income from continuing operations $ 15,054 $ 84 $ 15,138 $ 24,396 $ 118 $ 24,514 Less: income allocated to participating securities (12 ) — (12 ) (174 ) (1 ) (175 ) Less: participating securities dividends (201 ) (1 ) (202 ) (403 ) (2 ) (405 ) Less: preferred stock dividends (5,085 ) (28 ) (5,113 ) (10,177 ) (49 ) (10,226 ) Income from continuing operations allocated to common stockholders 9,756 55 9,811 13,642 66 13,708 Income from discontinued operations (2,865 ) (16 ) (2,881 ) 4,920 24 4,944 Net income allocated to common stockholders $ 6,891 $ 39 $ 6,930 $ 18,562 $ 90 $ 18,652 Weighted average common shares outstanding 50,010,943 278,647 50,289,590 49,817,624 240,916 50,058,540 Dilutive effects of stock units 42,756 — 42,756 68,664 — 68,664 Dilutive effects of stock options 226,603 — 226,603 207,397 — 207,397 Dilutive effects of warrants 383,375 — 383,375 401,497 — 401,497 Average shares and dilutive common shares 50,663,677 278,647 50,942,324 50,495,182 240,916 50,736,098 Basic earnings per common share Income from continuing operations $ 0.20 $ 0.20 $ 0.20 $ 0.27 $ 0.27 $ 0.27 Income from discontinued operations (0.06 ) (0.06 ) (0.06 ) 0.10 0.10 0.10 Net income $ 0.14 $ 0.14 $ 0.14 $ 0.37 $ 0.37 $ 0.37 Diluted earnings per common share Income from continuing operations $ 0.20 $ 0.20 $ 0.20 $ 0.27 $ 0.27 $ 0.27 Income from discontinued operations (0.06 ) (0.06 ) (0.06 ) 0.10 0.10 0.10 Net income $ 0.14 $ 0.14 $ 0.14 $ 0.37 $ 0.37 $ 0.37 For the three and six months ended June 30, 2017 , there were 44,875 and 49,946 stock units, respectively, and 120,000 and 229,923 stock options, respectively, 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, 2018
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, 2018 December 31, 2017 ($ in thousands) Fixed Rate Variable Rate Fixed Rate Variable Rate Commitments to extend credit (1) $ 1,345 $ 320,865 $ 1,851 $ 335,654 Unused lines of credit 1,754 1,213,416 19,085 1,309,170 Letters of credit 1,044 9,888 1,050 12,976 (1) Includes no commitments to extend credit related to discontinued operations at June 30, 2018 and December 31, 2017 . Commitments to make loans are generally made for periods of 30 days or less. 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. As of June 30, 2018 , the Bank has paid $12.7 million of the $100.0 million commitment. The prepaid commitment balance, net of amortization, was $9.3 million as of June 30, 2018 , which was recognized as a prepaid asset and included in Other Assets in the Consolidated Statements of Financial Condition. See Note 22 for additional information. The Company had unfunded commitments of $14.0 million , $10.7 million , and $501 thousand for Affordable Housing Fund Investment, Small Business Investment Company (SBIC), and Other Investments at June 30, 2018 , respectively.

RESTRUCTURING

RESTRUCTURING	6 Months Ended
	Jun. 30, 2018
Restructuring and Related Activities [Abstract]
RESTRUCTURING	RESTRUCTURING In connection with the sale of its Banc Home Loans division in 2017, the Company restructured certain aspects of its infrastructure and back office operations by realigning back office staffing resulting in certain severance and other employee related costs including accelerated vesting of equity awards, and amending certain system contracts in order to improve the Company's efficiency. These employees and systems primarily supported the Company's mortgage banking activities. The Company recognized $9.1 million of total restructuring expense during the year ended December 31, 2017. On June 26, 2018, the Company announced a reduction in force to the Company’s workforce by approximately 9% of total staffing. In addition, the Company expects to reduce the use of third party advisors during the third quarter of 2018, with each of these actions intended to align the Company’s cost structure with its focused commercial banking platform. The plan is expected to be substantially completed by the end of the third quarter of 2018 and fully completed during the fourth quarter of 2018. The Company incurred one-time severance-related costs in the second quarter of 2018 of $4.0 million , pre-tax, related to the reduction in force. Additional one-time severance costs may be recognized in the third and fourth quarters of 2018 from executing the plan. The Company had outstanding unpaid accrued liabilities of $2.7 million and $202 thousand , respectively, at June 30, 2018 and December 31, 2017. The following table presents activities in accrued liabilities and related expenses for the restructuring as of or for the three and six months ended June 30, 2018 : Expense ($ in thousands) Continuing Operations Discontinued Operations Total Accrued Liabilities As of or For the Three Months Ended June 30, 2018 Balance at beginning of period $ 161 Accrual: Severance and other employee related costs $ 3,983 $ — $ 3,983 3,983 Total $ 3,983 $ — $ 3,983 3,983 Payments: Severance and other employee related costs (1,463 ) Total $ (1,463 ) Balance at end of period $ 2,681 As of or For the Six Months Ended June 30, 2018 Balance at beginning of period $ 202 Accrual: Severance and other employee related costs $ 3,983 $ — $ 3,983 3,983 Total $ 3,983 $ — $ 3,983 3,983 Payments: Severance and other employee related costs (1,504 ) Total $ (1,504 ) Balance at end of period $ 2,681 The following table presents activities in accrued liabilities and related expenses for the restructuring as of or for the three and six months ended June 30, 2017 : Expense ($ in thousands) Continuing Operations Discontinued Operations Total Accrued Liabilities As of or For the Three Months Ended June 30 2017 Balance at beginning of period $ 7,002 Accrual: Severance and other employee related costs $ 82 $ 297 $ 379 379 Total $ 82 $ 297 $ 379 379 Payments: Severance and other employee related costs (5,799 ) Other restructuring expense (895 ) Total $ (6,694 ) Balance at end of period $ 687 As of or For the Six Months Ended June 30, 2017 Balance at beginning of period $ — Accrual: Severance and other employee related costs $ 5,369 $ 2,620 $ 7,989 7,989 Other restructuring expense — 895 895 895 Total $ 5,369 $ 3,515 $ 8,884 8,884 Payments: Severance and other employee related costs (7,302 ) Other restructuring expense (895 ) Total $ (8,197 ) Balance at end of period $ 687

REVENUE RECOGNITION

REVENUE RECOGNITION	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
REVENUE RECOGNITION	REVENUE RECOGNITION On January 1, 2018, the Company adopted ASU 2014-09, “ Revenue from Contracts with Customers (Topic 606) ”, and all subsequent amendments. As stated in Note 1, the implementation of the new standard did not have a material impact on the measurement, timing, or recognition of revenue. Accordingly, no cumulative effect adjustment to opening retained earnings was deemed necessary. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts were not adjusted and continue to be reported in accordance with our historic accounting under Topic 605. Topic 606 does not apply to revenue associated with financial instruments, including revenue from loans and securities. In addition, certain noninterest income streams such as gain or loss associated with mortgage servicing rights, financial guarantees, derivatives, and income from bank owned life insurance are also not within the scope of the new guidance. Topic 606 is applicable to noninterest income such as trust and asset management income, deposit related fees, interchange fees, merchant related income, and annuity and insurance commissions. However, the recognition of these revenue streams did not change significantly upon adoption of Topic 606. Noninterest income considered to be within the scope of Topic 606 is discussed below. Debit Card Fees When customers use their debit cards to pay merchants for goods or services, the Company retains a fee from the funds collected from the related deposit account and transfers the remaining funds to the payment network for remittance to the merchant. The performance obligation to the merchant is satisfied and the fee is recognized at the point in time when the funds are collected and transferred to the payment network. Investment Commissions The Company acts as an agent for a third party vendor that provides investment services and products to customers. Upon completion of a sale of investment services or products to a customer, the Company receives a commission from the third party vendor. The performance obligation to the third party vendor is satisfied and the commission income is recognized at that point in time. Deposit Service Fees Service charges on deposit accounts consist of account analysis fees, monthly service fees, check orders, and other deposit related fees. The Company’s performance obligation for account analysis fees and monthly service fees is generally satisfied, and the related revenue recognized, over the period in which the service is provided. Check orders and other deposit account related fees are largely transactional based, and therefore, the Company’s performance obligation is satisfied, and related revenue recognized, at a point in time as incurred. Other Other noninterest income primarily consists of other recurring revenue streams from gains or losses on sales of OREO, and merchant referral commissions. The Company's performance obligation for sale of OREO is the transfer of title and ownership rights of the OREO to the buyer, which occurs at the settlement date when the sale proceeds are received and income is recognized. The Company's performance obligation for merchant referral commissions is satisfied with the successful sale of services to those referred merchants, which is when the commission is received and the income is recognized. The following presents noninterest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the periods indicated. Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Noninterest Income In scope of Topic 606 Deposit Service Fees $ 708 $ 726 $ 1,486 $ 1,482 Debit Card Fees 177 486 402 927 Investment Commissions 619 383 942 833 Other — 82 155 159 Noninterest Income (in-scope of Topic 606) 1,504 1,677 2,985 3,401 Noninterest Income (out-of-scope of Topic 606) 6,557 4,030 13,658 17,209 Total Noninterest Income $ 8,061 $ 5,707 $ 16,643 $ 20,610 The Company does not typically enter into long-term revenue contracts with customers, and therefore, does not experience significant contract balances. As of June 30, 2018 and December 31, 2017 , the Company did not have any significant contract balances. As of June 30, 2018 , the Company did not capitalize any contract acquisition costs.

RELATED-PARTY TRANSACTIONS

RELATED-PARTY TRANSACTIONS	6 Months Ended
	Jun. 30, 2018
Related Party Transactions [Abstract]
RELATED-PARTY TRANSACTIONS	RELATED-PARTY TRANSACTIONS General. The Bank has granted loans to certain executive officers and directors and their related interests and to the Bank's affiliated entities. Excluding the loan amounts described in detail below, loans outstanding to persons who were executive officers and directors during the six months ended June 30, 2018 and the year ended December 31, 2017 and their related interests as well as to the Bank's affiliated entities amounted to $0 and $249 thousand , respectively, at June 30, 2018 and December 31, 2017 , all of which were performing in accordance with their respective terms as of those dates. These loans were made 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. The Bank 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. Deposits from executive officers, directors, and their related interests and the Bank's affiliated entities amounted to $12.4 million and $2.2 million at June 30, 2018 and December 31, 2017 , respectively. There are certain deposits described below, which are not included in the foregoing amounts. 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. During the six months ended June 30, 2018 , indemnification costs paid by the Company included $272 thousand incurred by director Halle J. Benett; $272 thousand incurred by director Jonah F. Schnel; and $272 thousand incurred by director Robert Sznewajs. Indemnification costs were paid on behalf of other executive officers and directors in lesser amounts for the six months ended June 30, 2018 During the year ended December 31, 2017 , indemnification costs paid by the Company included $501 thousand incurred by the Company's General Counsel Emeritus John Grosvenor. Indemnification costs were paid on behalf of other executive officers and directors in lesser amounts for the year ended December 31, 2017 . During the year ended December 31, 2016, no indemnification costs were paid by the Company on behalf of its current executive officers and directors. For indemnification costs paid for former executive officers and former directors during the six months ended June 30, 2018, and the years ended December 31, 2017 and 2016, see Transactions with Former Related Parties below. Company’s Sale of Shares to and Purchase of Shares from SECT. As reported in a Schedule 13G filed with the SEC on February 13, 2017, Evercore Trust Company, as trustee of the SECT (which was later succeeded as trustee by Newport Trust Company, N.A.), beneficially owned 2,500,000 shares of the Company’s voting common stock as of December 31, 2016, which Evercore Trust Company stated represented more than 5 percent of the total number of shares of the Company’s voting common stock outstanding as of that date. These shares were sold by the Company to the SECT on August 3, 2016 when the Company originally established the SECT. On December 28, 2017, in order to effectuate the early termination of the SECT, the Company purchased the 2,500,000 shares of voting common stock held by the SECT, as more fully described in Note 15. As reported in an amendment to the Schedule 13-G/A filed with the SEC on February 2, 2018, Evercore Trust Company reported that as of December 31, 2017, it no longer beneficially owned shares of the Company’s voting common stock. 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. 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 (together, Sabal). Mr. Bogler remains a material owner of Sabal. 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. Under the Sabal repurchase facility, commercial mortgage loans originated by Sabal are 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 are secured by commercial mortgage loans that have a market value in excess of the balance of the advances under the facility. During the six months ended June 30, 2018 and the year ended December 31, 2017 , the largest aggregate amount of principal outstanding under the Sabal repurchase facility was $32.5 million and $94.7 million , respectively. The amount outstanding as of June 30, 2018 and December 31, 2017 was $0 and $23.6 million , respectively. Interest on the outstanding balance under the Sabal repurchase facility accrues at the six-month LIBOR rate plus a margin. $203.4 million and $600.4 million in principal, respectively, and $357 thousand and $1.1 million in interest, respectively, was paid by Sabal on the facility to the Bank during the six months ended June 30, 2018 and the year ended December 31, 2017 . Underwriting Services . Keefe, Bruyette & Woods, Inc., a Stifel company, acted as an underwriter of public offerings of the Company’s securities in 2016, and also acted as financial advisor for the Company's sale of its Commercial Equipment Finance Division in 2016. Halle J. Benett, a director of the Company and the Bank, was employed as a Managing Director and Head of the Diversified Financials Group at Keefe, Bruyette & Woods, Inc. until August 31, 2016 and is entitled to receive compensation for certain deals that close subsequent to August 31, 2016 that he originated or actively managed (none involving the Company or the Bank). In addition, Mr. Benett agreed to provide unpaid consulting services to Keefe, Bruyette & Woods, Inc., for a small number of transactions (none involving the Company or the Bank) through December 31, 2016. The details of the financial advisory services are as follows: • On October 27, 2016, the Company sold its Commercial Equipment Finance Division to Hanmi Bank, a wholly-owned subsidiary of Hanmi Financial Corporation (Hanmi). Beginning on February 1, 2016, Keefe, Bruyette & Woods provided financial advisory and investment banking services to the Company with respect the possible sale of the division and, contingent upon the closing of the sale, received a non-refundable contingent fee from the Company of $516 thousand (less expenses, the amount was $500 thousand ). The details of the underwritten public offerings are as follows: • On March 8, 2016, the Company issued and sold 5,577,500 shares of its voting common stock. Pursuant to an underwriting agreement entered into with the Company for that offering on March 2, 2016, Keefe, Bruyette & Woods, Inc. received gross underwriting fees and commissions from the Company of approximately $1.0 million (less estimated expenses, the amount was $846 thousand ). • On February 8, 2016, the Company issued and sold 5,000,000 depositary shares (Series E Depositary Shares) each representing a 1/40 th ownership interest in a share of 7.00 percent Non-Cumulative Perpetual Preferred Stock, Series E, with a liquidation preference of $1,000 per share (equivalent to $25 per depositary share). Pursuant to an underwriting agreement entered into with the Company for that offering on February 1, 2016, Keefe, Bruyette & Woods, Inc. received gross underwriting fees and commission from the Company of approximately $944 thousand (less estimated expenses, the amount was $849 thousand ). Legion Affiliates . As reported in an amendment to a Schedule 13D filed with the SEC on May 23, 2017 , Legion Partners Asset Management, LLC (Legion Partners), Legion Partners, L.P. I, Legion and its affiliates (collectively, the Legion Group) beneficially owned 2,938,679 shares of the Company’s voting common stock as of May 19, 2017, which the Legion Group reported represented 5.6 percent of the Company’s total shares outstanding. As reported in an amendment to a Schedule 13D filed with the SEC on April 26, 2018 , the Legion Group beneficially owned 2,439,751 shares of the Company’s voting common stock as of that date, which the Legion Group reported represented 4.8 percent of the Company’s total shares outstanding. Cooperation Agreement . On March 13, 2017, the Company entered into a cooperation agreement with the Legion Group (the Legion Group Cooperation Agreement). Under the terms of such agreement, among other things: • The Legion Group agreed to irrevocably withdraw its notice of director nomination and submission of a business proposal. • The Company agreed to conduct a search for two additional independent directors in collaboration with the Legion Group. In accordance with this provision, following a search initiated by the Company Board and (following entry into the Legion Group Cooperation Agreement) conducted in consultation with Legion Group, the Company Board appointed Mary A. Curran and Bonnie G. Hill as new independent directors, for terms that became effective on June 9, 2017 at the conclusion of the Company's 2017 Annual Meeting of Stockholders. Ms. Curran is serving as a Class I director, for a term to expire at the Company’s 2019 Annual Meeting of Stockholders. Dr. Hill's initial term as a director expired at the Company's 2018 Annual Meeting of Stockholders, at which she was re-elected for a one-year term to expire at the Company’s 2019 Annual Meeting of Stockholders. Simultaneously with the effectiveness of their appointment to the Company Board, each of Ms. Curran and Dr. Hill was appointed as a director of the Bank. • From March 13, 2017 until June 10, 2017, the day after the Company’s 2017 Annual Meeting, the Legion Group agreed to vote all the shares of the Company's voting common stock that it beneficially owned (i) in favor of the Company’s slate of directors, (ii) against any stockholder’s nominations for directors not approved and recommended by the Board and against any proposals or resolutions to remove any director and (iii) in accordance with the Board’s recommendations on all other proposals of the Board set forth in the Company’s proxy statement. • The Legion Group agreed to certain standstill provisions that restricted the Legion Group and its affiliates, associates and representatives, from March 13, 2017 until June 10, 2017, from, among other things, acquiring additional voting securities of the Company that would result in the Legion Group having ownership or voting interest in 10 percent or more of the outstanding shares of voting common stock, engaging in proxy solicitations in an election contest, subjecting any shares to any voting arrangements except as expressly provided in the Legion Group Cooperation Agreement, making or being a proponent of a stockholder proposal, seeking to call a meeting of stockholders or solicit consents from stockholders, seeking to obtain representation on the Board except as otherwise expressly provided in the Legion Group Cooperation Agreement, seeking to remove any director from the Board, seeking to amend any provision of the governing documents of the Company, or proposing or participating in certain extraordinary corporate transactions involving the Company. • The Company agreed to reimburse the Legion Group up to $100 thousand for its legal fees and expenses incurred in connection with its investment in the Company. PL Capital Affiliates . As reported in an amendment to a Schedule 13D filed with the SEC on February 10, 2017 , PL Capital Advisors, LLC (PL Capital Advisors) and certain of its affiliates (collectively, the PL Capital Group) owned 3,427,219 shares of the Company’s voting common stock as of February 7, 2017, which the PL Capital Group reported represented 6.9 percent of the Company’s total shares outstanding. Cooperation Agreement . On February 7, 2017, Richard J. Lashley, a co-founder of PL Capital Advisors, LLC, was appointed to the Boards of Directors of the Company and the Bank, which appointments became effective February 16, 2017. Mr. Lashley was appointed as a Class I director of the Company, for a term that will expire at the Company’s 2019 Annual Meeting of Stockholders. In connection with the appointment of Mr. Lashley to the Boards, on February 8, 2017, the PL Capital Group and Mr. Lashley entered into a cooperation agreement with the Company (PL Capital Cooperation Agreement), in which PL Capital Group agreed, among other matters: • From February 8, 2017 until June 10, 2017 (PL Capital Restricted Period), the PL Capital Group agreed to vote all the shares of Common Stock that it beneficially owned (i) in favor of the Company’s slate of directors, (ii) against any stockholder’s nominations for directors not approved and recommended by the Company’s Board and against any proposals or resolutions to remove any director and (iii) in accordance with the recommendations by the Company’s Board on all other proposals of the Company’s Board set forth in the Company’s proxy statement. • In addition, during the PL Capital Restricted Period, the PL Capital Group agreed to certain standstill provisions that restricted the PL Capital Group and its affiliates, associates and representatives, during the PL Capital Restricted Period, from, among other things, acquiring additional voting securities of the Company that would result in the PL Capital Group having ownership or voting interest in 10 percent or more of the outstanding shares of voting common stock, engaging in proxy solicitations in an election contest, subjecting any shares to any voting arrangements except as expressly provided in the PL Capital Cooperation Agreement, making or being a proponent of a stockholder proposal, seeking to call a meeting of stockholders or solicit consents from stockholders, seeking to obtain representation on the Company’s Board except as otherwise expressly provided in the PL Capital Cooperation Agreement, seeking to remove any director from the Company’s Board, seeking to amend any provision of the governing documents of the Company, or proposing or participating in certain extraordinary corporate transactions involving the Company. • Pursuant to the PL Capital Cooperation Agreement, during the three months ended March 31, 2017, the Company reimbursed PL Capital Group $150 thousand for a portion of its legal fees and expenses incurred in connection with its investment in the Company. Patriot Affiliates . As reported in a Schedule 13D amendment filed with the SEC on November 10, 2014 , Patriot’s last public filing reporting ownership of the Company’s securities, Patriot Financial Partners, L.P. (together with its affiliates referred to as Patriot Partners) owned 3,100,564 shares of the Company’s voting common stock as of November 7, 2014, which Patriot Partners reported represented 9.3 percent of the Company’s outstanding voting common stock as of that date. For the details of the transaction in which Patriot Partners acquired certain of these shares, see “Securities Purchase Agreement with Patriot” below. In connection with the appointment of W. Kirk Wycoff, a managing partner of Patriot Partners, to the Boards of Directors of the Company and the Bank (described below), Mr. Wycoff filed a Form 3 with the SEC on February 24, 2017, which reported total holdings for Patriot Partners of 2,850,564 shares. Director . On February 9, 2017, Mr. Wycoff was appointed to the Boards of Directors of the Company and the Bank, which appointment became effective on February 16, 2017. Mr. Wycoff was appointed as a Class III director of the Company, for an initial term that expired at the Company’s 2018 Annual Meeting of Stockholders, at which Mr. Wycoff was re-elected for a one-year term to expire at the Company’s 2019 Annual Meeting of Stockholders. From 2010 to 2015, Mr. Wycoff was a director of, and Patriot Partners was a stockholder of, Square 1 Financial, Inc. (Square 1). Douglas H. Bowers, who became President and Chief Executive Officer of the Company and the Bank and a director of the Bank effective May 8, 2017 and a director of the Company on June 9, 2017 at the conclusion of the Company’s 2017 Annual Meeting of Stockholders, served as President and Chief Executive Officer of Square 1 from 2011 to 2015. There are no arrangements or understandings between Mr. Bowers and either Mr. Wycoff or Patriot Partners pursuant to which Mr. Bowers was selected as a director and an officer of the Company. Securities Purchase Agreement with Patriot . As noted above, as reported in a Schedule 13D amendment filed on November 10, 2014 with the SEC, Patriot Partners owned 3,100,564 shares of the Company’s voting common stock as of November 7, 2014, which Patriot Partners reported represented 9.3 percent of the Company’s total shares outstanding as of the dates set forth in the Schedule 13D. On April 22, 2014, the Company entered into a Securities Purchase Agreement (Patriot SPA) with Patriot Partners to raise a portion of the capital to be used to finance the acquisition of select assets and assumption of certain liabilities by the Bank from Banco Popular North America (BPNA) comprising BPNA's network of 20 California Branches (the BPNA Branch Acquisition), which was completed on November 8, 2014. The Patriot SPA was due to expire by its terms on October 31, 2014. Prior to such expiration, the Company and Patriot Partners entered into a Securities Purchase Agreement, dated as of October 30, 2014 (New Patriot SPA). Pursuant to the New Patriot SPA, substantially concurrently with the BPNA Branch Acquisition, Patriot Partners purchased from the Company (i) 1,076,000 shares of its voting common stock at a price of $9.78 per share and (ii) 824,000 shares of its voting common stock at a price of $11.55 per share, for an aggregate purchase price of $20.0 million . In consideration for Patriot Partners’ commitment under the New SPA and pursuant the terms of the New SPA, on the closing of the sale of such shares on November 7, 2014, the Company paid Patriot Partners an equity support payment of $538 thousand and also reimbursed Patriot Partners $100 thousand in out-of-pocket expenses. On October 30, 2014, concurrent with the execution of the New Patriot SPA, Patriot and the Company entered into a Settlement Agreement and Release (the Patriot Settlement Agreement) in order to resolve, without admission of any wrongdoing by either party, a prior dispute regarding, among other things, the proper interpretation of certain provisions of the SPA, including but not limited to the computation of the purchase price per share (the Dispute). Pursuant to the Patriot Settlement Agreement, Patriot and the Company released any claims they may have had against the other party with respect to the Dispute. In addition, Patriot and the Company agreed for the period beginning on the date of the Patriot Settlement Agreement and ending on December 31, 2016, that neither Patriot nor the Company would disparage the other party or its affiliates. During the period beginning on the date of the Patriot Settlement Agreement and ending on December 31, 2016, Patriot also agreed not to: • institute, solicit, assist or join, as a party, any proxy solicitation, consent solicitation, board nomination or director removal relating to the Company against or involving the Company or any of its subsidiaries, affiliates, successors, assigns, directors, officers, employees, agents, attorneys or financial advisors; • take any action relative to the governance of the Company that would violate its passivity commitments or vote the shares of voting common stock held or controlled by it on any matters related to the election, removal or replacement of directors or the calling of any meeting related thereto, other than in accordance with management’s recommendations included in the Company’s proxy statement for any annual meeting or special meeting; • form or join in a partnership, limited partnership, syndicate or other group, or solicit proxies or written consents of stockholders or conduct any other type of referendum (binding or non-binding) with respect to, or from the holders of, the voting common stock and any other securities of the Company entitled to vote in the election of directors, or securities convertible into, or exercisable or exchangeable for, voting common stock or such other securities (such other securities, together with the voting common stock, being referred to as Voting Securities), or become a participant in or assist, encourage or advise any person in any solicitation of any proxy, consent or other authority to vote any Voting Securities; or • enter into any negotiations, agreements, arrangements or understandings with any person with respect to any of the foregoing or advise, assist, encourage or seek to persuade any person to take any action with respect to any of the foregoing. The Company also agreed, during the same period, not to: • institute, solicit, assist or join, as a party, any proxy solicitation, consent solicitation, board nomination or director removal relating to Patriot against or involving Patriot or any of its subsidiaries, affiliates, successors, assigns, officers, partners, principals, employees, agents, attorneys or financial advisors; or • enter into any negotiations, agreements, arrangements or understandings with any person with respect to any of the foregoing or advise, assist, encourage or seek to persuade any person to take any action with respect to any of the foregoing. Transactions with Former Related Parties In addition to the transactions described above with former related parties, the Company and the Bank have engaged in transactions described below with the Company’s then (now former) 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 for Former Executive Officers and Former Directors in Connection with Special Committee Investigation, SEC Investigation and Related Matters . On November 3, 2016, in connection with the 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 also 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. During the six months ended June 30, 2018 , indemnification costs paid by the Company included $2.0 million incurred by the Company’s former Chair, President and Chief Executive Officer Steven A. Sugarman; $135 thousand , incurred by the Bank’s former Management Vice Chair Jeffrey T. Seabold; $287 thousand incurred by the Bank’s former director Cynthia Abercrombie; and $272 thousand 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 six months ended June 30, 2018 . During the year ended December 31, 2017 (excluding indemnification costs paid in January 2017), indemnification costs paid by the Company included $3.0 million incurred by Mr. Sugarman; $1.4 million incurred by Mr. Seabold; $631 thousand 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 $509 thousand incurred by the Company’s former director Chad Brownstein. Indemnification costs were paid on behalf of other former executive officers and other former directors in lesser amounts for the year ended December 31, 2017 (excluding fees paid in January 2017) For the year ended December 31, 2016, indemnification costs incurred under the arrangement described above (which were paid in January 2017) included $573 thousand incurred by Mr. Sugarman; and $135 thousand incurred jointly by Messrs. Turner and McKinney. Indemnification costs were paid on behalf of other former executive officers and other former directors in lesser amounts for the year ended December 31, 2016 (which were paid in January 2017). 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 provides 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 restrict 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. Banc of California Stadium Naming Rights and Sponsorship and Los Angeles Football Club Loans . Effective August 8, 2016, the Bank provided $40.3 million out of a $145.0 million committed construction line of credit (the Stadco Loan) to LAFC Stadium Co, LLC (Stadco) for the construction of a soccer-specific stadium for the LAFC in Los Angeles, California as well as to fund the interest and fees that become due under the Stadco Loan. LAFC is a Major League Soccer expansion franchise that debuted at the beginning of 2018. Also effective August 8, 2016, the Bank provided $9.7 million out of a $35.0 million committed senior secured line of credit (the Team Loan) to LAFC Sports, LLC (Team) to fund distributions to LAFC Partners, LLLP (Holdco) that will be used for stadium construction, funding interest and fees that become due under such Team Loan and to pay all other fees, costs and expenses payable by the Team in connection with project costs related to the stadium construction. All of the outstanding equity interests in Stadco and Team are held by Holdco, and Holdco serves as sole guarantor of the Team Loan described above. At the time the Stadco Loan and Team Loan were underwritten, minority limited partnership interests in Holdco were held by, among others: (i) Jason Sugarman, who is the brother of the Company’s and the Bank’s then- (now former) Chairman, President and Chief Executive Officer, Steven A. Sugarman; and (ii) Jason Sugarman’s father-in-law, who served during 2016 (and may continue to serve) as Executive Chairman and a member of Holdco’s board of directors, which was (and may continue to be) appointed by Holdco’s general partner and primarily functions in an advisory capacity. The foregoing statements are based primarily on information provided to the Company by Holdco through its legal counsel. As of June 30, 2018 and December 31, 2017 , there were $33.6 million and $23.3 million outstanding advances, respectively, by the Bank under the Stadco Loan. During the six months ended June 30, 2018 and the year ended December 31, 2017 , the largest amount of principal outstanding under the Stadco Loan was $33.8 million and $23.5 million , respectively. The Bank collected $59 thousand and $295 thousand , respectively, in unused loan fees during six months ended June 30, 2018 and the year ended December 31, 2017 . Interest on the outstanding balance under the Stadco Loan accrues at LIBOR plus a margin. During the six months ended June 30, 2018 and the year ended December 31, 2017 , $365 thousand and $325 thousand interest, respectively, was paid by Stadco to the Bank on the Stadco Loan. As of June 30, 2018 and Dec

LITIGATION

LITIGATION	6 Months Ended
	Jun. 30, 2018
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, 2018 , the Company accrued $1.1 million for various litigations 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. Trial is currently set for October 21, 2019. The Company believes that the action is without merit and intends to vigorously contest it. On September 26, 2017, a shareholder derivative action was filed in the United States District Court for the Central District of California against four of the Company’s directors alleging that they breached their fiduciary duties to the Company. In that action, the Company was a nominal defendant. The complaint sought monetary and equitable relief on behalf of the Company. The Company believes that the shareholder was required to, but failed to, make a demand on the Company to bring such claims, and that this failure requires dismissal of the action. The Company filed a motion to dismiss on those grounds. Rather than oppose the Company’s motion, plaintiff elected to file an amended complaint. The amended complaint was filed on February 6, 2018, which added Richard J. Lashley, Doug H. Bowers and John Grosvenor as individual defendants, and which added purported claims for gross negligence and unjust enrichment. The Company filed a motion to dismiss the amended complaint, which was set for hearing on June 18, 2018.The district court granted the Company’s motion to dismiss, and the plaintiff dismissed the action on June 22, 2018. On September 5, 2017, Jeffrey T. Seabold, a former officer of the Company and the Bank, filed a complaint in the Los Angeles Superior Court against the Company and multiple unnamed defendants asserting claims for breach of contract, wrongful termination, retaliation and unfair business practices. Mr. Seabold alleged that he was constructively terminated as a Company and Bank employee and sought in excess of $5 million in damages. On January 19, 2018, the parties reached a settlement in principle through mediation and a final settlement agreement was executed on February 14, 2018. The settlement did not have a material adverse effect on our financial condition, results of operations or liquidity. For additional information, including the terms of the settlement agreement, see Note 22.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS The Company evaluated events from the date of the consolidated financial statements on June 30, 2018 through the issuance of these consolidated financial statements included in this Quarterly Report on Form 10-Q and determined that no significant events were identified requiring recognition or disclosure in the consolidated financial statements.

SUMMARY OF SIGNIFICANT ACCOUN34

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2018
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 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, 2017 filed by the Company with the SEC. The December 31, 2017 statement 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, 2017 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. Certain reclassifications have been made in the prior period financial statements to conform to the current period presentation.
Principles of Consolidation	Principles of Consolidation: The accompanying unaudited consolidated financial statements include the accounts of the Company as of June 30, 2018 and December 31, 2017 and for the three and six months ended June 30, 2018 and 2017 . 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.
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 and lease losses (ALLL), reserve for loss on repurchased loans, reserve for unfunded loan commitments, servicing rights, realization of deferred tax assets, the valuation of goodwill and other intangible assets, purchased credit impaired (PCI) loan discount accretion, Hypothetical Liquidation at Book Value (HLBV) of investments in alternative energy partnerships, fair value of assets and liabilities acquired in business combinations, 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, for all periods presented.
Accounting Pronouncements	Adopted Accounting Pronouncements: During the six months ended June 30, 2018 , the following pronouncements applicable to the Company were adopted: In May 2014, the FASB issued Accounting Standard Update (ASU) 2014-09, “ Revenue from Contracts with Customers (Topic 606). ” This Update outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The model is based on the principle that an entity should recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This Update also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to fulfill a contract. The Update, as amended by ASU 2015-14, ASU 2016-08, ASU 2016-10, ASU 2016-12, ASU 2016-20, ASU 2017-13, and ASU 2017-14, is effective for interim and annual periods beginning after December 15, 2017, and entities have the option of using either a modified retrospective or full retrospective approach for the adoption. The Company’s revenue streams primarily consist of net interest income and noninterest income. The scope of this Update explicitly excludes net interest income, as well as other revenues from transactions involving financial instruments, such as loans, leases, and securities. Certain noninterest income items such as service charges on deposits accounts, gain and loss on other real estate owned sales, and other income items are in the scope of this Update. The Company evaluated the accounting impact of adopting this guidance based on the following “Five-step Model” prescribed in ASC 606: (i) identify the contract; (ii) identify the performance obligation in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations; and (v) recognize revenue when (or as) the performance obligation is satisfied. The Company identified and reviewed the revenue streams within the scope of the Update, including escrow fees, trust and fiduciary fees, deposit service fees, debit card fees, investment commissions, gains on sales of OREO, referral fees, and income from joint marketing with a certain credit card company. The Company determined that the new guidance will not require significant changes to the manner in which income from those revenue streams is currently recognized. Adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. However, the Company has enhanced its processes to identify contracts within the scope of Topic 606 and apply the Five-step Model to determine how revenue should be recognized. The Company adopted this Update and its related amendments effective January 1, 2018 utilizing the modified retrospective approach. Since there was no net income impact upon adoption of the new guidance, a cumulative effect adjustment to opening retained earnings was not deemed necessary. See Note 21 for additional information. In January 2016, the FASB issued ASU 2016-01, “ Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities .” This Update amends certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The ASU requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income; simplifies the impairment assessment of equity investments by requiring a qualitative assessment; eliminates the requirement for public business entities to disclose methods and assumptions for financial instruments measured at amortized cost on the statement of financial position; requires the exit price notion to be used when measuring the fair value of financial instruments for disclosure purposes; requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability; requires separate presentation of financial assets and liabilities by measurement category; and certain other requirements. This ASU and ASU 2018-04 became effective for interim and annual periods beginning on or after December 15, 2017. Adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. With regard to the aforementioned exit price notion, the Company measured the fair value of its loans and leases portfolio for disclosure purposes starting March 31, 2018 using an exit price notion. See Note 3 for additional information. In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows (Topic 230)." The amendments in this Update provide guidance on classification of certain cash receipts and cash payments. For public business entities that are SEC filers, this Update was effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. While permitted, the Company did not elect to adopt the guidance early. Adoption of the new guidance did not have a material impact on the Company's consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, “ Statement of Cash Flows (Topic 230) . ” The amendments in this Update are intended to reduce diversity in practice regarding classification of changes in restricted cash, requiring an entity to provide changes in restricted cash and restricted cash equivalents during the period in a statement of cash flows. This Update is effective for public business entities with fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Adoption of the new guidance had no impact on the Company's consolidated financial statements. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805). ” This Update provides guidance on evaluating whether transactions should be accounted for as an acquisition (or disposal) of assets or a businesses. This Update provides a more robust framework to use when determining whether a set of assets and activities represents a business. Public business entities must prospectively apply the amendment in this Update to annual periods beginning after December 15, 2017, including interim periods. Adoption of the new guidance had no impact on the Company's consolidated financial statements. In February 2017, the FASB issued ASU 2017-05, “Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets.” This Update clarifies the scope and application of ASC 610-20 on the sale or transfer of nonfinancial assets, including real estate, and in substance nonfinancial assets to noncustomers, including partial sales. An entity should identify each distinct nonfinancial asset or in substance nonfinancial asset promised to a counterparty and derecognize each asset when the counterparty obtains control of it. In addition, the amendment requires an entity to derecognize a distinct nonfinancial asset, or an in-substance nonfinancial asset, in a partial sale transaction when the entity does not retain a controlling financial interest in the legal entity that holds the asset and transfers control of the asset. Once control is transferred, any non-controlling interest received is required to be measured at fair value. The new guidance was effective for public business entities in annual and interim reporting periods beginning after December 15, 2017. Adoption of the new guidance had no impact on the Company's consolidated financial statements. In May 2017, the FASB issued ASU 2017-09, “Stock Compensation - Scope of Modification Accounting (Topic 718): Scope of Modification Accounting.” This Update provides guidance on when changes to the terms or conditions of a share-based payment award are to be accounted for as modifications. Under the new guidance, entities are not required to apply modification accounting to a share-based payment award when the award’s fair value, vesting conditions, and classification as an entity or a liability instrument remain the same after the change. The new guidance was effective for all entities beginning after December 15, 2017, including interim periods within the fiscal year. Upon adoption, the guidance will be applied prospectively to awards modified on or after the adoption date. Adoption of the new guidance had no impact on the Company's consolidated financial statements. In February 2018, the FASB issued ASU 2018-02. "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income." This Update allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The amendments in this Update also require certain disclosures about stranded tax effects. The amendments in this Update are effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption of the amendments in this Update is permitted, including adoption in any interim period for public business entities for reporting periods for which financial statements have not yet been issued. The Company early adopted this Update during the three months ended March 31, 2018 and reclassified its stranded tax effect of $496 thousand in accumulated other comprehensive income that resulted from the change in the U.S. federal corporate tax rate to retained earnings.

SALE OF BUSINESS UNIT (DISCON35

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) (Tables)	6 Months Ended
	Jun. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Schedule of disposal groups and discontinued operations	The following table summarizes the calculation of the net gain on disposal of discontinued operations: Three Months Ended June 30, Six Months Ended June 30, Total Net Gain on Disposal After Completion of Sale ($ in thousands) 2018 2017 2018 2017 Proceeds from the transaction $ — $ (264 ) $ — $ 63,068 $ 63,054 Compensation expense related to the transaction — 500 1,003 (3,500 ) (2,497 ) Other transaction costs 272 — 272 (3,703 ) (3,159 ) Net cash proceeds 272 236 1,275 55,865 57,398 Book value of certain assets sold — — — (2,455 ) (2,455 ) Book value of MSRs sold — — — (37,772 ) (37,772 ) Goodwill — — — (2,100 ) (2,100 ) Net gain on disposal $ 272 $ 236 $ 1,275 $ 13,538 $ 15,071 The Banc Home Loans division originated conforming SFR mortgage loans and sold these loans in the secondary market. The amount of net revenue on mortgage banking activities was a function of mortgage loans originated for sale and the fair values of these loans and related derivatives. Net revenue on mortgage banking activities included mark to market pricing adjustments on loan commitments and forward sales contracts, and initial capitalized value of MSRs. The following tables present the financial information of discontinued operations as of the dates or for the periods indicated: Statements of Financial Condition of Discontinued Operations ($ in thousands) June 30, 2018 December 31, 2017 ASSETS Loans held-for-sale, carried at fair value (1) (2) $ 26,415 $ 38,696 Other assets — 204 Assets of discontinued operations $ 26,415 $ 38,900 LIABILITIES Accrued expenses and other liabilities (1) $ — $ 7,819 Liabilities of discontinued operations $ — $ 7,819 (1) Includes $0 and $7.1 million of loans sold to Government National Mortgage Association (GNMA) that were delinquent more than 90 days and subject to a repurchase option by the Company at June 30, 2018 and December 31, 2017 , respectively. As such, the Company was deemed to have regained control over those previously transferred assets and has re-recognized them with an offsetting liability in Accrued Expenses and Other Liabilities in the Statements of Financial Condition of Discontinued Operations, as a secured borrowing. Because the Company intends to exercise its option to repurchase and sell them within one year, they have been classified as part of discontinued operations. (2) Includes $10.7 million and $24.1 million of non-performing loans at June 30, 2018 and December 31, 2017 . Statements of Operations of Discontinued Operations Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Interest income Loans, including fees $ 189 $ 2,796 $ 375 $ 6,062 Total interest income 189 2,796 375 6,062 Noninterest income Net gain on disposal 272 236 1,275 13,538 Loan servicing income — — — 1,551 Net revenue on mortgage banking activities 56 13,636 288 43,070 All other income 779 238 1,414 752 Total noninterest income 1,107 14,110 2,977 58,911 Noninterest expense Salaries and employee benefits 6 13,593 15 37,968 Occupancy and equipment — 1,038 — 3,395 Professional fees — 2,090 — 2,192 Outside Service Fees — 3,249 — 5,613 Data processing — 63 — 527 Advertising — 449 — 1,282 Restructuring expense — 297 — 3,515 All other expenses 9 1,118 12 2,124 Total noninterest expense 15 21,897 27 56,616 Income (loss) from discontinued operations before income taxes 1,281 (4,991 ) 3,325 8,357 Income tax expense 355 (2,110 ) 915 3,413 Income (loss) from discontinued operations $ 926 $ (2,881 ) $ 2,410 $ 4,944 Statements of Cash Flows of Discontinued Operations Six Months Ended June 30, ($ in thousands) 2018 2017 Net cash provided by operating activities $ 7,076 $ 250,170 Net cash provided by investing activities — 55,865 Net cash provided by discontinued operations $ 7,076 $ 306,035

FAIR VALUES OF FINANCIAL INST36

FAIR VALUES OF FINANCIAL INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2018
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, 2018 Assets Securities available-for-sale: SBA loan pools securities $ 967 $ — $ 967 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 456,790 — 456,790 — Non-agency residential mortgage-backed securities 496 — 496 — Non-agency commercial mortgage-backed securities 158,358 — 158,358 — Collateralized loan obligations 1,680,513 — 1,680,513 — Loans held-for-sale, carried at fair value (1) 38,749 — 5,515 33,234 Mortgage servicing rights (2) 2,062 — — 2,062 Derivative assets: Interest rate swaps and caps (3) 1,686 — 1,686 — Liabilities Derivative liabilities: Interest rate swaps and caps (4) 1,650 — 1,650 — December 31, 2017 Assets Securities available-for-sale: SBA loan pools securities $ 1,058 $ — $ 1,058 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 476,929 — 476,929 — Non-agency residential mortgage-backed securities 756 — 756 — Non-agency commercial mortgage-backed securities 310,511 — 310,511 — Collateralized loan obligations 1,702,318 — 1,702,318 — Corporate debt securities 83,897 — 83,897 — Loans held-for-sale, carried at fair value (5) 105,299 — 6,359 98,940 Mortgage servicing rights (2) 31,852 — — 31,852 Derivative assets: Interest rate swaps and caps (3) 1,005 — 1,005 — Liabilities Derivative liabilities: Interest rate swaps and caps (4) 1,033 — 1,033 — (1) Includes loans held-for-sale carried at fair value of $26.4 million ( $5.5 million at Level 2 and $20.9 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition. (2) Included in Servicing Rights, Net in the Consolidated Statements of Financial Condition. (3) Included in Other Assets in the Consolidated Statements of Financial Condition. (4) Included in Accrued Expenses and Other Liabilities in the Consolidated Statements of Financial Condition. (5) Includes loans held-for-sale carried at fair value of $38.7 million ( $6.4 million at Level 2 and $32.3 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition.
Fair Value Liabilities Measured on a Recurring Basis	The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2018 Assets Securities available-for-sale: SBA loan pools securities $ 967 $ — $ 967 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 456,790 — 456,790 — Non-agency residential mortgage-backed securities 496 — 496 — Non-agency commercial mortgage-backed securities 158,358 — 158,358 — Collateralized loan obligations 1,680,513 — 1,680,513 — Loans held-for-sale, carried at fair value (1) 38,749 — 5,515 33,234 Mortgage servicing rights (2) 2,062 — — 2,062 Derivative assets: Interest rate swaps and caps (3) 1,686 — 1,686 — Liabilities Derivative liabilities: Interest rate swaps and caps (4) 1,650 — 1,650 — December 31, 2017 Assets Securities available-for-sale: SBA loan pools securities $ 1,058 $ — $ 1,058 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 476,929 — 476,929 — Non-agency residential mortgage-backed securities 756 — 756 — Non-agency commercial mortgage-backed securities 310,511 — 310,511 — Collateralized loan obligations 1,702,318 — 1,702,318 — Corporate debt securities 83,897 — 83,897 — Loans held-for-sale, carried at fair value (5) 105,299 — 6,359 98,940 Mortgage servicing rights (2) 31,852 — — 31,852 Derivative assets: Interest rate swaps and caps (3) 1,005 — 1,005 — Liabilities Derivative liabilities: Interest rate swaps and caps (4) 1,033 — 1,033 — (1) Includes loans held-for-sale carried at fair value of $26.4 million ( $5.5 million at Level 2 and $20.9 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition. (2) Included in Servicing Rights, Net in the Consolidated Statements of Financial Condition. (3) Included in Other Assets in the Consolidated Statements of Financial Condition. (4) Included in Accrued Expenses and Other Liabilities in the Consolidated Statements of Financial Condition. (5) Includes loans held-for-sale carried at fair value of $38.7 million ( $6.4 million at Level 2 and $32.3 million at Level 3) of discontinued operations, which are included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition.
Reconciliation of Assets Measured at Fair Value on Recurring Basis	The following table presents a reconciliation of assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3), on a consolidated operations basis, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Mortgage servicing rights Balance at beginning of period (1) $ 4,953 $ 42,833 $ 31,852 $ 76,121 Transfers in and (out) of Level 3 (2) — — — — Total gains or losses (realized/unrealized): Included in earnings—fair value adjustment (216 ) (3,035 ) (1,090 ) (3,079 ) Additions — 3,751 — 11,552 Sales, paydowns, and other (3) (2,675 ) (1,440 ) (28,700 ) (42,485 ) Balance at end of period $ 2,062 $ 42,109 $ 2,062 $ 42,109 Loans repurchased or subject to repurchase option from GNMA Loan Pools (4) Balance at beginning of period $ 42,962 $ 66,701 $ 98,940 $ 58,260 Transfers in and (out) of Level 3 (2) — — — — Total gains or losses (realized/unrealized): Included in earnings—fair value adjustment (248 ) 6 (254 ) 15 Additions 2,765 17,935 27,385 35,231 Sales, settlements, and other (12,245 ) (11,097 ) (92,837 ) (19,961 ) Balance at end of period $ 33,234 $ 73,545 $ 33,234 $ 73,545 (1) Includes MSRs of discontinued operations, which is included in Assets of Discontinued Operations in the Consolidated Statements of Financial Condition, of $37.7 million for the six months ended June 30, 2017 in balance at beginning of period. (2) The Company’s policy is to recognize transfers in and transfers out as of the actual date of the event or change in circumstances that causes the transfer. (3) Includes $37.8 million of MSRs sold as a part of discontinued operations for the six months ended June 30, 2017 . (4) 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 $24.0 million and $66.7 million , respectively, for the three months ended June 30, 2018 and 2017 and $32.3 million and $58.3 million , respectively, for the six months ended June 30, 2018 and 2017 in balance at beginning of period, and $20.9 million and $52.1 million , respectively, for the three and six months ended June 30, 2018 and 2017 in balance at end of period
Quantitative Information About Level 3 Fair Value Measurements	The following table presents, as of the dates indicated, quantitative information about Level 3 fair value measurements on a recurring basis, other than loans that become severely delinquent and are repurchased out of GNMA loan pools that were valued based on an estimate of the expected loss the Company will incur on these loans, which was included as Level 3 at June 30, 2018 and December 31, 2017 : ($ in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Range (Weighted Average) June 30, 2018 Mortgage servicing rights $ 1,992 Discounted cash flow Discount rate 13.00% to 13.00% (13.00%) Prepayment rate 12.39% to 44.76% (16.44%) December 31, 2017 Mortgage servicing rights (1) $ 2,059 Discounted cash flow Discount rate 13.00% to 13.00% (13.00%) Prepayment rate 10.04% to 49.97% (16.54%) (1) Excludes MSRs held-for-sale of $70 thousand and $29.8 million , respectively, which were valued based on a market bid adjusted for expected obligations arising from standard representations and warranties at June 30, 2018 and December 31, 2017
Fair value option of certain assets	The following table presents changes in fair value related to initial measurement and subsequent changes in fair value included in earnings for these assets and liabilities measured at fair value for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Net gains (losses) from fair value changes Net gain (loss) on sale of loans (continuing operations) $ 6 $ 2 $ (20 ) $ 8 Net revenue on mortgage banking activities (discontinued operations) (247 ) 2,459 (245 ) 2,373 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, 2018 December 31, 2017 ($ 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 $ 12,334 $ 13,021 $ (687 ) $ 66,603 $ 67,415 $ (812 ) Non-accrual loans (1) 919 938 (19 ) 60,999 61,900 (901 ) Loans held-for-sale, carried at fair value in discontinued operations: Total loans $ 26,415 $ 27,510 $ (1,095 ) $ 38,696 $ 39,541 $ (845 ) Non-accrual loans (2) 10,732 10,887 (155 ) 24,073 24,297 (224 ) (1) Includes loans guaranteed by the U.S. government of $753 thousand and $54.2 million , respectively, at June 30, 2018 and December 31, 2017 . (2) Includes loans guaranteed by the U.S. government of $8.6 million and $20.7 million , respectively, at June 30, 2018 and December 31, 2017
Schedule of Assets and Liabilities Measured on Non-recurring Basis	The following table presents the Company’s financial assets and liabilities measured at fair value on a non-recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2018 Assets Impaired loans: Other consumer $ 4 — — $ 4 Other real estate owned: Single family residential 276 — — 276 December 31, 2017 Assets Impaired loans: SBA $ 174 — — $ 174 Other real estate owned: Single family residential 1,415 — — 1,415
Schedule of Gains and (Losses) Recognized on Assets Measured at Fair Value on Non-recurring Basis	The following table presents the gains and (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) 2018 2017 2018 2017 Impaired loans: Single family residential mortgage $ — $ — $ (115 ) $ — Commercial and industrial (231 ) — (292 ) — SBA — — (380 ) — Other consumer — — (141 ) — Construction — (29 ) — (29 ) Other real estate owned: Single family residential 183 36 194 28
Carrying Amounts and 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, 2018 Financial assets Cash and cash equivalents $ 385,691 $ 385,691 $ — $ — $ 385,691 Securities available-for-sale 2,297,124 — 2,297,124 — 2,297,124 Federal Home Loan Bank and other bank stock 75,737 — 75,737 — 75,737 Loans held-for-sale (1) 40,168 — 7,013 33,234 40,247 Loans and leases receivable, net of ALLL 6,979,326 — — 6,960,050 6,960,050 Accrued interest receivable 37,138 37,138 — — 37,138 Derivative assets 1,686 — 1,686 — 1,686 Financial liabilities Deposits 7,135,794 — — 6,902,576 6,902,576 Advances from Federal Home Loan Bank 1,805,000 — 1,800,336 — 1,800,336 Long term debt 173,017 — 176,103 — 176,103 Derivative liabilities 1,650 — 1,650 — 1,650 Accrued interest payable 8,279 8,279 — — 8,279 December 31, 2017 Financial assets Cash and cash equivalents $ 387,699 $ 387,699 $ — $ — $ 387,699 Securities available-for-sale 2,575,469 — 2,575,469 — 2,575,469 Federal Home Loan Bank and other bank stock 75,654 — 75,654 — 75,654 Loans held-for-sale (2) 105,765 — 6,866 98,940 105,806 Loans and leases receivable, net of ALLL 6,610,074 — — 6,601,767 6,601,767 Accrued interest receivable 35,355 35,355 — — 35,355 Derivative assets 1,005 — 1,005 — 1,005 Financial liabilities Deposits 7,292,903 — — 7,063,613 7,063,613 Advances from Federal Home Loan Bank 1,695,000 — 1,695,039 — 1,695,039 Long term debt 172,941 — 180,560 — 180,560 Derivative liabilities 1,033 — 1,033 — 1,033 Accrued interest payable 7,321 7,321 — — 7,321 (1) Includes loans held-for-sale carried at fair value of $26.4 million ( $5.5 million at Level 2 and $20.9 million at Level 3) of discontinued operations. (2) Includes loans held-for-sale carried at fair value of $38.7 million ( $6.4 million at Level 2 and $32.3 million at Level 3) of discontinued operations

INVESTMENT SECURITIES (Tables)

INVESTMENT SECURITIES (Tables)	6 Months Ended
	Jun. 30, 2018
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, 2018 Securities available-for-sale: SBA loan pool securities $ 982 $ — $ (15 ) $ 967 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 485,503 — (28,713 ) 456,790 Non-agency residential mortgage-backed securities 483 15 (2 ) 496 Non-agency commercial mortgage-backed securities 160,970 7 (2,619 ) 158,358 Collateralized loan obligations 1,676,611 6,996 (3,094 ) 1,680,513 Total securities available-for-sale $ 2,324,549 $ 7,018 $ (34,443 ) $ 2,297,124 December 31, 2017 Securities available-for-sale: SBA loan pool securities $ 1,056 $ 2 $ — $ 1,058 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 492,255 10 (15,336 ) 476,929 Non-agency residential mortgage-backed securities 741 16 (1 ) 756 Non-agency commercial mortgage-backed securities 305,172 5,339 — 310,511 Collateralized loan obligations 1,691,455 11,129 (266 ) 1,702,318 Corporate debt securities 76,714 7,183 — 83,897 Total securities available-for-sale $ 2,567,393 $ 23,679 $ (15,603 ) $ 2,575,469
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) 2018 2017 2018 2017 Gross realized gains on sales and calls of securities available-for-sale $ 278 $ 1,099 $ 5,519 $ 4,455 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 $ 1,099 $ 5,519 $ 4,455 Proceeds from sales and calls of securities available-for-sale $ 325,439 $ 475,586 $ 612,956 $ 886,590 Tax expense on sales and calls of securities available-for-sale $ 81 $ 457 $ 1,618 $ 1,853
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, 2018 Securities available-for-sale: SBA loan pool securities $ 966 $ (15 ) $ — $ — $ 966 $ (15 ) U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ 16,907 $ (374 ) $ 436,740 $ (28,339 ) $ 453,647 $ (28,713 ) Non-agency residential mortgage-backed securities 95 (1 ) 61 (1 ) 156 (2 ) Non-agency commercial mortgage-backed securities 152,392 (2,619 ) — — 152,392 (2,619 ) Collateralized loan obligations 295,281 (3,094 ) — — 295,281 (3,094 ) Total securities available-for-sale $ 465,641 $ (6,103 ) $ 436,801 $ (28,340 ) $ 902,442 $ (34,443 ) December 31, 2017 Securities available-for-sale: U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ 4,880 $ (35 ) $ 470,092 $ (15,301 ) $ 474,972 $ (15,336 ) Non-agency residential mortgage-backed securities — — 148 (1 ) 148 (1 ) Collateralized loan obligations 104,334 (266 ) — — 104,334 (266 ) Total securities available-for-sale $ 109,214 $ (301 ) $ 470,240 $ (15,302 ) $ 579,454 $ (15,603 )

LOANS AND LEASES AND ALLOWANC38

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Tables)	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Loans and Leases Receivable	The following table presents the balances in the Company’s loans and leases portfolio as of the dates indicated: ($ in thousands) NTM Loans Traditional Loans and Leases Total Loans and Leases Receivable June 30, 2018 Commercial: Commercial and industrial $ — $ 1,742,559 $ 1,742,559 Commercial real estate — 793,855 793,855 Multifamily — 1,959,965 1,959,965 SBA — 78,092 78,092 Construction — 211,110 211,110 Lease financing — — — Consumer: Single family residential mortgage 815,374 1,358,809 2,174,183 Other consumer 3,502 72,738 76,240 Total loans and leases $ 818,876 $ 6,217,128 $ 7,036,004 Allowance for loan and lease losses (56,678 ) Loans and leases receivable, net $ 6,979,326 December 31, 2017 Commercial: Commercial and industrial $ — $ 1,701,951 $ 1,701,951 Commercial real estate — 717,415 717,415 Multifamily — 1,816,141 1,816,141 SBA — 78,699 78,699 Construction — 182,960 182,960 Lease financing — 13 13 Consumer: Single family residential mortgage 803,355 1,252,294 2,055,649 Other consumer 3,578 103,001 106,579 Total loans and leases $ 806,933 $ 5,852,474 $ 6,659,407 Allowance for loan and lease losses (49,333 ) Loans and leases receivable, net $ 6,610,074
Non Traditional Mortgages Portfolio	The following table presents the composition of the NTM portfolio as of the dates indicated: June 30, 2018 December 31, 2017 ($ in thousands) Count Amount Percent Count Amount Percent Green Loans (HELOC) - first liens 96 $ 72,720 8.9 % 101 $ 82,197 10.2 % Interest-only - first liens 495 739,053 90.3 % 468 717,484 88.9 % Negative amortization 11 3,601 0.4 % 11 3,674 0.5 % Total NTM - first liens 602 815,374 99.6 % 580 803,355 99.6 % Green Loans (HELOC) - second liens 12 3,502 0.4 % 12 3,578 0.4 % Total NTM - second liens 12 3,502 0.4 % 12 3,578 0.4 % Total NTM loans 614 $ 818,876 100.0 % 592 $ 806,933 100.0 % Total loans and leases $ 7,036,004 $ 6,659,407 % of NTM to total loans and leases 11.6 % 12.1 %
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) 2018 2017 2018 2017 Balance at beginning of period $ 54,763 $ 42,736 $ 49,333 $ 40,444 Loans and leases charged off (950 ) (2,898 ) (15,589 ) (3,255 ) Recoveries of loans and leases previously charged off 212 44 782 110 Provision for loan and lease losses 2,653 2,503 22,152 5,086 Balance at end of period $ 56,678 $ 42,385 $ 56,678 $ 42,385 The following table presents the activity and balance in the ALLL and the recorded investment, excluding accrued interest, in loans and leases 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 Provision (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 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 the activity and balance in the ALLL and the recorded investment, excluding accrued interest, in loans and leases based on the impairment methodology as of or for the three and six months ended June 30, 2017 : ($ 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, 2017 $ 10,888 $ 4,543 $ 11,029 $ 1,146 $ 3,018 $ 5 $ 11,240 $ 867 $ 42,736 Charge-offs (132 ) (113 ) — (293 ) (29 ) — (2,331 ) — (2,898 ) Recoveries — — — 31 — 10 — 3 44 Provision (261 ) 696 (343 ) 200 (15 ) (12 ) 2,100 138 2,503 Balance at June 30, 2017 $ 10,495 $ 5,126 $ 10,686 $ 1,084 $ 2,974 $ 3 $ 11,009 $ 1,008 $ 42,385 Balance at December 31, 2016 $ 7,584 $ 5,467 $ 11,376 $ 939 $ 2,015 $ 6 $ 12,075 $ 982 $ 40,444 Charge-offs (382 ) (113 ) — (293 ) (29 ) — (2,412 ) (26 ) (3,255 ) Recoveries — — — 74 — 29 1 6 110 Provision 3,293 (228 ) (690 ) 364 988 (32 ) 1,345 46 5,086 Balance at June 30, 2017 $ 10,495 $ 5,126 $ 10,686 $ 1,084 $ 2,974 $ 3 $ 11,009 $ 1,008 $ 42,385 Individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ 424 $ — $ 424 Collectively evaluated for impairment 10,495 5,121 10,686 1,065 2,974 3 10,585 1,008 41,937 Acquired with deteriorated credit quality — 5 — 19 — — — — 24 Total ending ALLL balance $ 10,495 $ 5,126 $ 10,686 $ 1,084 $ 2,974 $ 3 $ 11,009 $ 1,008 $ 42,385 Loans: Individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ 9,971 $ 873 $ 10,844 Collectively evaluated for impairment 1,560,264 715,650 1,545,888 74,726 156,246 173 1,768,565 119,680 5,941,192 Acquired with deteriorated credit quality 652 1,121 — 2,528 — — — — 4,301 Total ending loan balances $ 1,560,916 $ 716,771 $ 1,545,888 $ 77,254 $ 156,246 $ 173 $ 1,778,536 $ 120,553 $ 5,956,337
Loans and Leases Individually Evaluated for Impairment by Class of Loans and Leases	The following table presents loans and leases individually evaluated for impairment by class of loans and leases 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 leases and net of any deferred fees and costs and any purchase premium or discount. June 30, 2018 December 31, 2017 ($ in thousands) Unpaid Principal Balance Recorded Investment Allowance for Loan and Lease Losses Unpaid Principal Balance Recorded Investment Allowance for Loan and Lease Losses With no related ALLL recorded: Commercial: Commercial and industrial $ 5,270 $ 5,234 $ — $ 471 $ 453 $ — SBA 554 522 — 342 335 — Consumer: Single family residential mortgage 3,989 3,995 — 7,521 7,553 — Other consumer 554 557 — 4,664 4,663 — With an ALLL recorded: Commercial: Commercial and industrial 596 595 595 3,146 3,129 498 SBA 137 124 124 635 609 435 Consumer: Single family residential mortgage 16,042 16,145 461 7,090 7,146 277 Other consumer 220 193 8 157 162 7 Total $ 27,362 $ 27,365 $ 1,188 $ 24,026 $ 24,050 $ 1,217 The following table presents information on impaired loans and leases, 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, 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 June 30, 2017 Commercial: Construction — — — 764 — — Consumer: Single family residential mortgage 9,985 42 46 10,520 85 89 Other consumer 878 2 2 884 4 3 Total $ 10,863 $ 44 $ 48 $ 12,168 $ 89 $ 92
Aging of Recorded Investment in Past Due Loans and Leases	The following table presents the aging of the recorded investment in past due loans and leases, excluding accrued interest receivable (which is not considered to be material), by class of loans and leases 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, 2018 NTM loans: Single family residential mortgage $ 790 $ 694 $ — $ 1,484 $ 813,890 $ 815,374 Other consumer — — — — 3,502 3,502 Total NTM loans 790 694 — 1,484 817,392 818,876 Traditional loans and leases: Commercial: Commercial and industrial 2,075 3,509 597 6,181 1,736,378 1,742,559 Commercial real estate — — — — 793,855 793,855 Multifamily — — — — 1,959,965 1,959,965 SBA 138 524 798 1,460 76,632 78,092 Construction 467 — — 467 210,643 211,110 Consumer: Single family residential mortgage 2,647 2,422 9,795 14,864 1,343,945 1,358,809 Other consumer 1,831 — 263 2,094 70,644 72,738 Total traditional loans and leases 7,158 6,455 11,453 25,066 6,192,062 6,217,128 Total $ 7,948 $ 7,149 $ 11,453 $ 26,550 $ 7,009,454 $ 7,036,004 December 31, 2017 NTM loans: Single family residential mortgage $ 9,060 $ 1,879 $ 1,171 $ 12,110 $ 791,245 $ 803,355 Other consumer — — — — 3,578 3,578 Total NTM loans 9,060 1,879 1,171 12,110 794,823 806,933 Traditional loans and leases: Commercial: Commercial and industrial 136 3,595 948 4,679 1,697,272 1,701,951 Commercial real estate — — — — 717,415 717,415 Multifamily — — — — 1,816,141 1,816,141 SBA 3,578 — 1,319 4,897 73,802 78,699 Construction — — — — 182,960 182,960 Lease financing — — — — 13 13 Consumer: Single family residential mortgage 6,862 3,370 6,012 16,244 1,236,050 1,252,294 Other consumer 3,194 413 92 3,699 99,302 103,001 Total traditional loans and leases 13,770 7,378 8,371 29,519 5,822,955 5,852,474 Total $ 22,830 $ 9,257 $ 9,542 $ 41,629 $ 6,617,778 $ 6,659,407
Composition of Nonaccrual Loans and Leases	The following table presents non-accrual loans and leases, and loans past due 90 days or more and still accruing as of the dates indicated: June 30, 2018 December 31, 2017 ($ in thousands) NTM Loans Traditional Loans and Leases Total NTM Loans Traditional Loans and Leases Total Non-accrual loans and leases (1) Commercial: Commercial and industrial $ — $ 5,920 $ 5,920 $ — $ 3,723 $ 3,723 SBA — 1,082 1,082 — 1,781 1,781 Consumer: Single family residential mortgage 1,538 13,294 14,832 1,171 8,176 9,347 Other consumer — 456 456 — 4,531 4,531 Total non-accrual loans and leases $ 1,538 $ 20,752 $ 22,290 $ 1,171 $ 18,211 $ 19,382 Loans past due 90 days or more and still accruing $ — $ — $ — $ — $ — $ — (1) The Company maintained specific reserves in ALLL for these loans, which were individually evaluated for impairment, of $1.1 million and $1.1 million at June 30, 2018 and December 31, 2017 , respectively.
Troubled Debt Restructurings	The following table summarizes the pre-modification and post-modification balances of the new TDRs for the periods indicated: Three Months Ended Six Months Ended ($ 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, 2018 Commercial: Commercial and industrial — $ — $ — 2 $ 171 $ 163 Total — — — 2 $ 171 $ 163 June 30, 2017 Consumer: Single family residential mortgage 1 1,150 1,160 3 2,416 2,433 Total 1 $ 1,150 $ 1,160 3 $ 2,416 $ 2,433 During the three months ended June 30, 2018 , there were no new TDRs. The following table summarizes new TDRs by modification type for the three months ended June 30, 2017 : 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, 2017 Consumer: Single family residential mortgage 1 $ 1,160 — $ — 1 $ 1,160 Total 1 $ 1,160 — $ — 1 $ 1,160 The following table summarizes new TDRs by modification type for the six months ended June 30, 2018 and 2017 : 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, 2018 Commercial: Commercial and industrial — $ — 2 $ 163 2 $ 163 Total — — 2 $ 163 2 163 June 30, 2017 Consumer: Single family residential mortgage 2 $ 1,290 1 $ 1,143 3 $ 2,433 Total 2 $ 1,290 1 $ 1,143 3 $ 2,433 TDR loans consist of the following as of the dates indicated: June 30, 2018 December 31, 2017 ($ in thousands) NTM Loans Traditional Loans Total NTM Loans Traditional Loans Total Commercial: Commercial and industrial $ — $ 2,746 $ 2,746 $ — $ 2,675 $ 2,675 Consumer: Single family residential mortgage 2,683 2,626 5,309 2,699 2,653 5,352 Other consumer 294 — 294 294 — 294 Total $ 2,977 $ 5,372 $ 8,349 $ 2,993 $ 5,328 $ 8,321
Risk Categories for Loans and Leases	The following table presents the risk categories for total loans and leases as of the dates indicated: ($ in thousands) Pass Special Mention Substandard Doubtful Total June 30, 2018 NTM loans: Single family residential mortgage $ 811,273 $ 1,577 $ 2,524 $ — $ 815,374 Other consumer 3,502 — — — 3,502 Total NTM loans 814,775 1,577 2,524 — 818,876 Traditional loans and leases: Commercial: Commercial and industrial 1,680,576 16,618 45,365 — 1,742,559 Commercial real estate 778,948 10,798 4,109 — 793,855 Multifamily 1,958,352 — 1,613 — 1,959,965 SBA 70,266 934 6,612 280 78,092 Construction 208,017 2,498 595 — 211,110 Lease financing — — — — — Consumer: Single family residential mortgage 1,338,747 3,846 16,216 — 1,358,809 Other consumer 71,949 315 474 — 72,738 Total traditional loans and leases 6,106,855 35,009 74,984 280 6,217,128 Total $ 6,921,630 $ 36,586 $ 77,508 $ 280 $ 7,036,004 December 31, 2017 NTM loans: Single family residential mortgage $ 800,589 $ 1,595 $ 1,171 $ — $ 803,355 Other consumer 3,578 — — — 3,578 Total NTM loans 804,167 1,595 1,171 — 806,933 Traditional loans and leases: Commercial: Commercial and industrial 1,651,628 33,376 16,947 — 1,701,951 Commercial real estate 713,131 — 4,284 — 717,415 Multifamily 1,815,601 540 — — 1,816,141 SBA 72,417 1,555 4,621 106 78,699 Construction 182,960 — — — 182,960 Lease financing 13 — — — 13 Consumer: Single family residential mortgage 1,240,866 2,282 9,146 — 1,252,294 Other consumer 98,030 422 4,549 — 103,001 Total traditional loans and leases 5,774,646 38,175 39,547 106 5,852,474 Total $ 6,578,813 $ 39,770 $ 40,718 $ 106 $ 6,659,407
Summary of Significant Activities	The following table presents loans and leases 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, 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 ) June 30, 2017 Commercial: Commercial and industrial $ — $ (3,924 ) $ — $ (3,924 ) Commercial real estate — (1,329 ) — (1,329 ) Multifamily $ — $ — $ — $ (6,583 ) SBA — (1,865 ) — (1,865 ) Construction — (1,528 ) — (1,528 ) Consumer: Single family residential mortgage — (168,043 ) — (403,747 ) Total $ — $ (176,689 ) $ — $ (418,976 )
Accretable Yield, or Income Expected to be Collected	The following table presents a summary of accretable yield, or income expected to be collected, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ — $ 38,691 $ — $ 41,181 Accretion of income — (1,884 ) — (3,833 ) Changes in expected cash flows — — — (225 ) Disposals — (34,570 ) — (34,886 ) Balance at end of period $ — $ 2,237 $ — $ 2,237

SERVICING RIGHTS (Tables)

SERVICING RIGHTS (Tables)	6 Months Ended
	Jun. 30, 2018
Transfers and Servicing [Abstract]
Schedule of Income (Loss) from Servicing Rights	The following table presents a composition of total income from servicing rights, which is reported in Loan Servicing Income on the Consolidated Statements of Operations, on a consolidated operations basis, for the three and six months ended June 30, 2018 and 2017 : Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Servicing fees for sold loans with servicing retained $ 909 $ 4,621 $ 4,140 $ 10,831 Losses on the fair value and runoff of servicing rights 39 (4,489 ) (881 ) (6,392 ) Total income from servicing rights $ 948 $ 132 $ 3,259 $ 4,439
Servicing Rights	The following table presents a composition of servicing rights, on a consolidated operations basis, as of the dates indicated: ($ in thousands) June 30, 2018 December 31, 2017 Mortgage servicing rights, at fair value $ 2,062 $ 31,852 SBA servicing rights, at amortized cost 1,807 1,856 Total $ 3,869 $ 33,708
Mortgage Servicing Rights Fair Value and Weighted Average Life	The following table presents the key characteristics, inputs and economic assumptions used to estimate the fair value of the MSRs as of the dates indicated: ($ in thousands) June 30, 2018 December 31, 2017 Fair value of retained MSRs $ 1,992 $ 2,059 Discount rate 13.00 % 13.00 % Constant prepayment rate 16.44 % 16.54 % Weighted-average life 5.08 years 5.07 years
Mortgage Servicing Rights	The following table presents activity in the MSRs, on a consolidated operations basis, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 4,953 $ 42,833 $ 31,852 $ 76,121 Additions — 3,751 — 11,552 Sales of servicing rights (1) (2,570 ) — (28,549 ) (39,186 ) Changes in fair value resulting from valuation inputs or assumptions (216 ) (3,035 ) (1,090 ) (3,079 ) Other (105 ) (1,440 ) (151 ) (3,299 ) Balance at end of period $ 2,062 $ 42,109 $ 2,062 $ 42,109 (1) Includes $37.8 million of MSRs sold as a part of discontinued operations for the six months ended June 30, 2017.
Small Business Administration Servicing Rights	The following table presents activity in the SBA servicing rights for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 1,786 $ 1,618 $ 1,856 $ 1,496 Additions 109 160 109 346 Amortization, including prepayments (83 ) (53 ) (153 ) (100 ) Impairment (5 ) — (5 ) (17 ) Balance at end of period $ 1,807 $ 1,725 $ 1,807 $ 1,725

OTHER REAL ESTATE OWNED (Tables

OTHER REAL ESTATE OWNED (Tables)	6 Months Ended
	Jun. 30, 2018
Real Estate Owned, Disclosure of Detailed Components [Abstract]
Schedule of Real Estate Owned	The following table presents the activity in OREO for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 1,024 $ 3,345 $ 1,796 $ 2,502 Additions 434 632 434 1,803 Sales and net direct write-downs (992 ) (710 ) (1,711 ) (1,035 ) Net change in valuation allowance 244 — 191 (3 ) Balance at end of period $ 710 $ 3,267 $ 710 $ 3,267
Activities in Other Real Estate Owned Valuation Allowance	The following table presents the activity in the OREO valuation allowance included in All Other Expense in the Consolidated Statements of Operations for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 295 $ 9 $ 242 $ 6 Additions — — 143 9 Recoveries — — (90 ) — Net direct write-downs and removals from sale (244 ) — (244 ) (6 ) Balance at end of period $ 51 $ 9 $ 51 $ 9
Expenses Related to Foreclosed Assets Included in Loan Servicing and Foreclosure Expenses	The following table presents expenses related to foreclosed assets included in All Other Expense in the Consolidated Statements of Operations for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Net gain (loss) on sales $ (61 ) $ 36 $ 3 $ 31 Operating expenses, net of rental income (54 ) (9 ) (102 ) (13 ) Total $ (115 ) $ 27 $ (99 ) $ 18

GOODWILL AND OTHER INTANGIBLE41

GOODWILL AND OTHER INTANGIBLE ASSETS, NET (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	($ in thousands) Gross Carrying Value Accumulated Amortization Net Carrying Value June 30, 2018 Core deposit intangibles $ 30,904 $ 23,221 $ 7,683 December 31, 2017 Core deposit intangibles $ 30,904 $ 21,551 $ 9,353
Estimated Future Amortization Expense	The following table presents estimated future amortization expenses as of June 30, 2018 : ($ in thousands) Remainder of 2018 2019 2020 2021 2022 and After Total Estimated future amortization expense $ 1,337 $ 2,195 $ 1,518 $ 1,081 $ 1,552 $ 7,683

FEDERAL HOME LOAN BANK ADVANC42

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS (Tables)	6 Months Ended
	Jun. 30, 2018
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, 2018 December 31, 2017 Fixed rate: Outstanding balance $ 1,030,000 $ 550,000 Interest rates ranging from 1.23 % 1.23 % Interest rates ranging to 3.32 % 3.00 % Weighted average interest rate 2.40 % 2.02 % Variable rate: Outstanding balance 775,000 1,145,000 Weighted average interest rate 2.07 % 1.40 %

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	6 Months Ended
	Jun. 30, 2018
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, 2018 December 31, 2017 ($ in thousands) Par Value Discount Par Value Discount 5.25% senior notes due April 15, 2025 $ 175,000 $ (1,983 ) $ 175,000 $ (2,059 ) Total $ 175,000 $ (1,983 ) $ 175,000 $ (2,059 )

RESERVE FOR LOSS ON REPURCHAS44

RESERVE FOR LOSS ON REPURCHASED LOANS (Tables)	6 Months Ended
	Jun. 30, 2018
Mortgage Banking Activities [Abstract]
Summary of Activities in Reserve for Loss Reimbursements on Sold Loans	The following table presents a summary of activity in the reserve for loss on repurchased loans for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Balance at beginning of period $ 3,426 $ 8,118 $ 6,306 $ 7,974 Initial provision for loan repurchases 53 673 55 1,515 Subsequent change in the provision (218 ) (403 ) (2,006 ) (728 ) Utilization of reserve for loan repurchases (112 ) (360 ) (1,206 ) (733 ) Balance at end of period $ 3,149 $ 8,028 $ 3,149 $ 8,028

DERIVATIVE INSTRUMENTS (Tables)

DERIVATIVE INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2018
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, 2018 December 31, 2017 ($ in thousands) Notional Amount Fair Value Notional Amount Fair Value Included in assets: Interest rate swaps and caps on loans $ 92,779 $ 1,686 $ 70,486 $ 1,005 Total included in assets $ 92,779 $ 1,686 $ 70,486 $ 1,005 Included in liabilities: Interest rate swaps and caps on loans $ 92,779 $ 1,650 $ 70,486 1,033 Total included in liabilities $ 92,779 $ 1,650 $ 70,486 $ 1,033

EMPLOYEE STOCK COMPENSATION (Ta

EMPLOYEE STOCK COMPENSATION (Tables)	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Share-Based Compensation Expense	The following table presents share-based compensation expense and the related tax benefits for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Stock options $ 80 $ 420 $ 113 $ 667 Restricted stock awards and units 1,708 4,378 3,762 6,982 Stock appreciation rights — — — 42 Total share-based compensation expense $ 1,788 $ 4,798 $ 3,875 $ 7,691 Related tax benefits $ 524 $ 1,992 $ 1,136 $ 3,195
Unrecognized Share-Based Compensation Expense	The following table presents unrecognized share-based compensation expense as of June 30, 2018 : ($ in thousands) Unrecognized Expense Weighted-Average Remaining Expected Recognition Period Stock option awards $ 201 1.8 years Restricted stock awards and restricted stock units 11,865 2.7 years Total $ 12,066 2.7 years
Option Activity	The following table represents stock option activity for the three months ended June 30, 2018 : Three Months Ended June 30, 2018 ($ 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 6.6 years $ 1,077 Outstanding at end of period 186,973 $ 13.54 6.3 years $ 1,123 Exercisable at end of period 113,649 $ 13.69 6.0 years $ 667 The following table represents stock option activity for the six months ended June 30, 2018 : Six Months Ended June 30, 2018 ($ 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 210,973 $ 13.99 7.0 years $ 1,405 Exercised (24,000 ) $ 17.50 8.2 years $ — Outstanding at end of period 186,973 $ 13.54 6.3 years $ 1,123 Exercisable at end of period 113,649 $ 13.69 6.0 years $ 667
Nonvested Share	The following table sets forth information regarding unvested stock options for the three and six months ended June 30, 2018 . Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Number of Shares Weighted-Average Exercise Price Per Share Number of Shares Weighted-Average Outstanding at beginning of period 105,432 $ 13.31 105,432 $ 13.31 Vested (32,108 ) $ 13.28 (32,108 ) $ 13.28 Outstanding at end of period 73,324 $ 13.32 73,324 $ 13.32
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, 2018 : Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 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 917,941 $ 18.91 911,633 $ 18.73 Granted (1) 539,084 $ 18.80 578,862 $ 18.84 Vested (1) (305,952 ) $ 19.17 (318,217 ) $ 19.01 Forfeited (1) (165,836 ) $ 18.24 (187,041 ) $ 18.27 Outstanding at end of period 985,237 $ 18.84 985,237 $ 18.84 (1) The number of granted shares/units includes aggregate performance-based shares of 289,301 and 306,801 for the three and six months ended June 30, 2018 , respectively. The number of vested shares includes aggregate performance-based shares of 44,817 and 44,817 for the three and six months ended June 30, 2018 , respectively. The number of forfeited shares includes aggregate performance-based shares of 41,782 and 47,420 for the three and six months ended June 30, 2018 , respectively. The vesting of these awards is subject to certain performance targets and goals being met. 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.
Summary of all Outstanding SARs	The following table represents SARs activity as of and for the three months ended June 30, 2018 : Three Months Ended June 30, 2018 ($ 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 4.4 years $ 12,001 Outstanding at end of period 1,559,012 $ 11.60 4.1 years $ 12,390 Exercisable at end of period 1,559,012 $ 11.60 4.1 years $ 12,390 The following table represents SARs activity as of and for the six months ended June 30, 2018 : Six Months Ended June 30, 2018 ($ 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 4.6 years $ 14,105 Outstanding at end of period 1,559,012 $ 11.60 4.1 years $ 12,390 Exercisable at end of period 1,559,012 $ 11.60 4.1 years $ 12,390

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Summary of Preferred Stock	The following table presents the Company's total outstanding preferred stock as of dates indicated: June 30, 2018 December 31, 2017 ($ 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 40,250 $ 40,250 $ 37,943 40,250 $ 40,250 $ 37,943 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 280,250 $ 280,250 $ 269,071 280,250 $ 280,250 $ 269,071
Changes to Accumulate Other Comprehensive Income by Components	The following table presents changes to Accumulated Other Comprehensive Income (Loss) for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Unrealized gain (loss) on securities available-for-sale Balance at beginning of period $ (11,542 ) $ (9,702 ) $ 5,227 $ (9,042 ) Unrealized gain (loss) arising during the period (10,796 ) 10,923 (30,478 ) 13,149 Unrealized gain arising from the reclassification of securities held-to-maturity to securities available-for-sale — 21,990 — 21,990 Reclassification adjustment from other comprehensive income (278 ) (1,099 ) (5,519 ) (4,455 ) Tax effect of current period changes 3,246 (13,231 ) 10,904 (12,761 ) Total changes, net of taxes (7,828 ) 18,583 (25,093 ) 17,923 Reclassification of stranded tax effects to retained earnings — — 496 — Balance at end of period $ (19,370 ) $ 8,881 $ (19,370 ) $ 8,881

REGULATORY CAPITAL MATTERS (Tab

REGULATORY CAPITAL MATTERS (Tables)	6 Months Ended
	Jun. 30, 2018
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The following table presents the regulatory capital amounts and ratios for the Company and the Bank as of dates indicated: Minimum Capital Requirements Minimum Required to Be Well-Capitalized Under Prompt Corrective Action Provisions ($ in thousands) Amount Ratio Amount Ratio Amount Ratio June 30, 2018 Banc of California, Inc. Total risk-based capital $ 1,007,444 14.71 % $ 547,802 8.00 % N/A N/A Tier 1 risk-based capital 946,735 13.83 % 410,852 6.00 % N/A N/A Common equity tier 1 capital 677,664 9.90 % 308,139 4.50 % N/A N/A Tier 1 leverage 946,735 9.30 % 407,033 4.00 % N/A N/A Banc of California, NA Total risk-based capital $ 1,136,016 16.63 % $ 546,541 8.00 % $ 683,176 10.00 % Tier 1 risk-based capital 1,075,307 15.74 % 409,906 6.00 % 546,541 8.00 % Common equity tier 1 capital 1,075,307 15.74 % 307,429 4.50 % 444,065 6.50 % Tier 1 leverage 1,075,307 10.58 % 406,411 4.00 % 508,014 5.00 % December 31, 2017 Banc of California, Inc. Total risk-based capital $ 1,002,200 14.56 % $ 550,499 8.00 % N/A N/A Tier 1 risk-based capital 949,151 13.79 % 412,874 6.00 % N/A N/A Common equity tier 1 capital 682,539 9.92 % 309,656 4.50 % N/A N/A Tier 1 leverage 949,151 9.39 % 404,339 4.00 % N/A N/A Banc of California, NA Total risk-based capital $ 1,131,057 16.56 % $ 546,359 8.00 % $ 682,949 10.00 % Tier 1 risk-based capital 1,078,008 15.78 % 409,769 6.00 % 546,359 8.00 % Common equity tier 1 capital 1,078,008 15.78 % 307,327 4.50 % 443,917 6.50 % Tier 1 leverage 1,078,008 10.67 % 404,060 4.00 % 505,074 5.00 %

VARIABLE INTEREST ENTITIES (Tab

VARIABLE INTEREST ENTITIES (Tables)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Unconsolidated VIEs	The following table represents the carrying value of the associated assets and liabilities and the associated maximum loss exposure for alternative energy partnerships as of the dates indicated: ($ in thousands) June 30, 2018 December 31, 2017 Cash $ 8,022 $ 16,518 Equipment, net of depreciation 265,752 246,297 Other assets 3,262 2,444 Total unconsolidated assets $ 277,036 $ 265,259 Total unconsolidated liabilities $ 6,073 $ 7,181 Maximum loss exposure $ 44,806 $ 98,910

EARNINGS PER COMMON SHARE (Tabl

EARNINGS PER COMMON SHARE (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Basic and Diluted Earnings Per Common Share	The following table presents computations of basic and diluted EPS for the three and six months ended June 30, 2017 : Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 ($ in thousands except per share data) Common Stock Class B Common Stock Total Common Stock Class B Common Stock Total Income from continuing operations $ 15,054 $ 84 $ 15,138 $ 24,396 $ 118 $ 24,514 Less: income allocated to participating securities (12 ) — (12 ) (174 ) (1 ) (175 ) Less: participating securities dividends (201 ) (1 ) (202 ) (403 ) (2 ) (405 ) Less: preferred stock dividends (5,085 ) (28 ) (5,113 ) (10,177 ) (49 ) (10,226 ) Income from continuing operations allocated to common stockholders 9,756 55 9,811 13,642 66 13,708 Income from discontinued operations (2,865 ) (16 ) (2,881 ) 4,920 24 4,944 Net income allocated to common stockholders $ 6,891 $ 39 $ 6,930 $ 18,562 $ 90 $ 18,652 Weighted average common shares outstanding 50,010,943 278,647 50,289,590 49,817,624 240,916 50,058,540 Dilutive effects of stock units 42,756 — 42,756 68,664 — 68,664 Dilutive effects of stock options 226,603 — 226,603 207,397 — 207,397 Dilutive effects of warrants 383,375 — 383,375 401,497 — 401,497 Average shares and dilutive common shares 50,663,677 278,647 50,942,324 50,495,182 240,916 50,736,098 Basic earnings per common share Income from continuing operations $ 0.20 $ 0.20 $ 0.20 $ 0.27 $ 0.27 $ 0.27 Income from discontinued operations (0.06 ) (0.06 ) (0.06 ) 0.10 0.10 0.10 Net income $ 0.14 $ 0.14 $ 0.14 $ 0.37 $ 0.37 $ 0.37 Diluted earnings per common share Income from continuing operations $ 0.20 $ 0.20 $ 0.20 $ 0.27 $ 0.27 $ 0.27 Income from discontinued operations (0.06 ) (0.06 ) (0.06 ) 0.10 0.10 0.10 Net income $ 0.14 $ 0.14 $ 0.14 $ 0.37 $ 0.37 $ 0.37 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

LOAN COMMITMENTS AND OTHER RE51

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES (Tables)	6 Months Ended
	Jun. 30, 2018
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, 2018 December 31, 2017 ($ in thousands) Fixed Rate Variable Rate Fixed Rate Variable Rate Commitments to extend credit (1) $ 1,345 $ 320,865 $ 1,851 $ 335,654 Unused lines of credit 1,754 1,213,416 19,085 1,309,170 Letters of credit 1,044 9,888 1,050 12,976 (1) Includes no commitments to extend credit related to discontinued operations at June 30, 2018 and December 31, 2017 .

RESTRUCTURING (Tables)

RESTRUCTURING (Tables)	6 Months Ended
	Jun. 30, 2018
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Reserve by Type of Cost	The following table presents activities in accrued liabilities and related expenses for the restructuring as of or for the three and six months ended June 30, 2018 : Expense ($ in thousands) Continuing Operations Discontinued Operations Total Accrued Liabilities As of or For the Three Months Ended June 30, 2018 Balance at beginning of period $ 161 Accrual: Severance and other employee related costs $ 3,983 $ — $ 3,983 3,983 Total $ 3,983 $ — $ 3,983 3,983 Payments: Severance and other employee related costs (1,463 ) Total $ (1,463 ) Balance at end of period $ 2,681 As of or For the Six Months Ended June 30, 2018 Balance at beginning of period $ 202 Accrual: Severance and other employee related costs $ 3,983 $ — $ 3,983 3,983 Total $ 3,983 $ — $ 3,983 3,983 Payments: Severance and other employee related costs (1,504 ) Total $ (1,504 ) Balance at end of period $ 2,681 The following table presents activities in accrued liabilities and related expenses for the restructuring as of or for the three and six months ended June 30, 2017 : Expense ($ in thousands) Continuing Operations Discontinued Operations Total Accrued Liabilities As of or For the Three Months Ended June 30 2017 Balance at beginning of period $ 7,002 Accrual: Severance and other employee related costs $ 82 $ 297 $ 379 379 Total $ 82 $ 297 $ 379 379 Payments: Severance and other employee related costs (5,799 ) Other restructuring expense (895 ) Total $ (6,694 ) Balance at end of period $ 687 As of or For the Six Months Ended June 30, 2017 Balance at beginning of period $ — Accrual: Severance and other employee related costs $ 5,369 $ 2,620 $ 7,989 7,989 Other restructuring expense — 895 895 895 Total $ 5,369 $ 3,515 $ 8,884 8,884 Payments: Severance and other employee related costs (7,302 ) Other restructuring expense (895 ) Total $ (8,197 ) Balance at end of period $ 687

REVENUE RECOGNITION (Tables)

REVENUE RECOGNITION (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Summary of Noninterest Income	The following presents noninterest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the periods indicated. Three Months Ended June 30, Six Months Ended June 30, ($ in thousands) 2018 2017 2018 2017 Noninterest Income In scope of Topic 606 Deposit Service Fees $ 708 $ 726 $ 1,486 $ 1,482 Debit Card Fees 177 486 402 927 Investment Commissions 619 383 942 833 Other — 82 155 159 Noninterest Income (in-scope of Topic 606) 1,504 1,677 2,985 3,401 Noninterest Income (out-of-scope of Topic 606) 6,557 4,030 13,658 17,209 Total Noninterest Income $ 8,061 $ 5,707 $ 16,643 $ 20,610

SUMMARY OF SIGNIFICANT ACCOUN54

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Jun. 30, 2017USD ($)	Mar. 31, 2017USD ($)	Jun. 30, 2018USD ($)banking_office	Jun. 30, 2017USD ($)
Accounting Policies [Abstract]
Number of banking offices | banking_office					34
Change in Accounting Estimate [Line Items]
Salaries and employee benefits	$ 29,440		$ 33,348		$ 60,555	$ 65,791
Accumulated Other Comprehensive Income (Loss) | ASU 2018-02
Change in Accounting Estimate [Line Items]
Stranded tax effects		$ 496			496
Retained Earnings | ASU 2018-02
Change in Accounting Estimate [Line Items]
Stranded tax effects		(496)			$ (496)
Reversal of Excess Accrual
Change in Accounting Estimate [Line Items]
Salaries and employee benefits		$ 937		$ 7,800

SALE OF BUSINESS UNIT (DISCON55

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) - Banc Home Loans Sale Additional Information (Details) - USD ($) $ in Thousands	Mar. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018	Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
MSRs sold		$ 2,570	$ 0	$ 28,549	$ 39,186
Net gain on disposal		272	236	1,275	13,538
Caliber
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Unpaid balances of conventional agency mortgage loans	$ 3,860,000
Banc Home Loan | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash premium payment	25,000
Book value of certain assets sold	2,500	0	2,455	0	2,455		$ 0
Income from earn-out		777		1,400			2,500
MSRs sold	$ 37,800	0	0	0	37,772		37,772
Net gain on disposal		$ 272	$ 236	1,275	$ 13,538	$ 15,100	$ 15,071
Reversal of accrued liabilities				$ 1,000
Banc Home Loan | Discontinued Operations, Disposed of by Sale | Buyout Option, Future Earn-Out Receivable
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earn-out performance period	38 months
Contingent consideration	$ 35,000

SALE OF BUSINESS UNIT (DISCON56

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) - Summary of net gain on disposal of discontinued operations (Details) - USD ($) $ in Thousands	Mar. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018	Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net cash proceeds				$ 0	$ 55,865
Book value of MSRs sold		$ (2,570)	$ 0	(28,549)	(39,186)
Net gain on disposal		272	236	1,275	13,538
Banc Home Loan | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the transaction		0	(264)	0	63,068		$ 63,054
Compensation expense related to the transaction		0	500	1,003	(3,500)		(2,497)
Other transaction costs		272	0	272	(3,703)		(3,159)
Net cash proceeds		272	236	1,275	55,865		57,398
Book value of certain assets sold	$ (2,500)	0	(2,455)	0	(2,455)		0
Book value of MSRs sold	$ (37,800)	0	0	0	(37,772)		(37,772)
Goodwill		0	(2,100)	0	(2,100)		0
Net gain on disposal		$ 272	$ 236	$ 1,275	$ 13,538	$ 15,100	$ 15,071

SALE OF BUSINESS UNIT (DISCON57

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) - Statements of Financial Condition of Discontinued Operations (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Assets of discontinued operations	$ 26,415	$ 38,900
LIABILITIES
Liabilities of discontinued operations	0	7,819
Non-performing loans
ASSETS
Loans held-for-sale, carried at fair value	10,700	24,100
Banc Home Loan | Discontinued Operations, Disposed of by Sale
ASSETS
Loans held-for-sale, carried at fair value	26,415	38,696
Other assets	0	204
Assets of discontinued operations	26,415	38,900
LIABILITIES
Accrued expenses and other liabilities	0	7,819
Liabilities of discontinued operations	0	7,819
Banc Home Loan | Discontinued Operations, Disposed of by Sale | GNMA Loans | More than 90 Days Past Due
ASSETS
Loans held-for-sale, carried at fair value	$ 0	$ 7,100

SALE OF BUSINESS UNIT (DISCON58

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) - Statements of Operations of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended	15 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018	Jun. 30, 2018
Noninterest income
Net gain on disposal	$ 272	$ 236	$ 1,275	$ 13,538
Noninterest expense
Restructuring expense	0	297	0	3,515
Income (loss) from discontinued operations before income taxes	1,281	(4,991)	3,325	8,357
Income tax expense (benefit)	355	(2,110)	915	3,413
Income (loss) from discontinued operations	926	(2,881)	2,410	4,944
Banc Home Loan | Discontinued Operations, Disposed of by Sale
Interest income
Loans, including fees	189	2,796	375	6,062
Total interest income	189	2,796	375	6,062
Noninterest income
Net gain on disposal	272	236	1,275	13,538	$ 15,100	$ 15,071
Loan servicing income	0	0	0	1,551
Net revenue on mortgage banking activities	56	13,636	288	43,070
All other income	779	238	1,414	752
Total noninterest income	1,107	14,110	2,977	58,911
Noninterest expense
Salaries and employee benefits	6	13,593	15	37,968
Occupancy and equipment	0	1,038	0	3,395
Professional fees	0	2,090	0	2,192
Outside Service Fees	0	3,249	0	5,613
Data processing	0	63	0	527
Advertising	0	449	0	1,282
Restructuring expense	0	297	0	3,515
All other expenses	9	1,118	12	2,124
Total noninterest expense	15	21,897	27	56,616
Income (loss) from discontinued operations before income taxes	1,281	(4,991)	3,325	8,357
Income tax expense (benefit)	355	(2,110)	915	3,413
Income (loss) from discontinued operations	$ 926	$ (2,881)	$ 2,410	$ 4,944

SALE OF BUSINESS UNIT (DISCON59

SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) - Statements of Cash Flows of Discontinued Operations (Details) - Banc Home Loan - Discontinued Operations, Disposed of by Sale - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net cash provided by operating activities	$ 7,076	$ 250,170
Net cash provided by investing activities	0	55,865
Net cash provided by discontinued operations	$ 7,076	$ 306,035

FAIR VALUES OF FINANCIAL INST60

FAIR VALUES OF FINANCIAL INSTRUMENTS - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held-for-sale	$ 40,247		$ 40,247		$ 105,806
Fair value of held-for-sale MSRs	70		70		29,793
Net gains (losses) attributable to instrument-specific credit risk	0	$ 0	0	$ 0
Valuation allowance for other real estate owned	0	$ 0	53	$ 9
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		0
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregated unpaid principal balance	34,200		$ 34,200		$ 99,700
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%
Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held-for-sale	33,234		$ 33,234		$ 98,940
Significant Unobservable Inputs (Level 3) | Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held-for-sale	$ 33,234		$ 33,234		98,940
Significant Unobservable Inputs (Level 3) | Recurring | U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held-for-sale					$ 66,000

FAIR VALUES OF FINANCIAL INST61

FAIR VALUES OF FINANCIAL INSTRUMENTS - Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 2,297,124	$ 2,575,469
Loans held-for-sale	40,247	105,806
Derivative assets	1,686	1,005
Derivative liabilities	1,650	1,033
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	26,415	38,696
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	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	2,297,124	2,575,469
Loans held-for-sale	7,013	6,866
Derivative assets	1,686	1,005
Derivative liabilities	1,650	1,033
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	33,234	98,940
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	2,297,124	2,575,469
Loans held-for-sale	40,168	105,765
Derivative assets	1,686	1,005
Derivative liabilities	1,650	1,033
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	0	0
Mortgage servicing rights	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	5,515	6,359
Mortgage servicing rights	0	0
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	5,500	6,400
Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale	33,234	98,940
Mortgage servicing rights	2,062	31,852
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	20,900	32,300
Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale	38,749	105,299
Mortgage servicing rights	2,062	31,852
SBA loan pools securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	967	1,058
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	967	1,058
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	967	1,058
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	456,790	476,929
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	456,790	476,929
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	456,790	476,929
Non-agency residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	496	756
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	496	756
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	496	756
Non-agency commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	158,358	310,511
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	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	158,358	310,511
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	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	158,358	310,511
Collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,680,513	1,702,318
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	1,680,513	1,702,318
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	1,680,513	1,702,318
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		83,897
Corporate debt 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
Corporate debt 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		83,897
Corporate debt 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
Corporate debt securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		83,897
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	1,686	1,005
Derivative liabilities	1,650	1,033
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	1,686	1,005
Derivative liabilities	$ 1,650	$ 1,033

FAIR VALUES OF FINANCIAL INST62

FAIR VALUES OF FINANCIAL INSTRUMENTS - Reconciliation of Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Total gains or losses (realized/unrealized):
MSRs sold		$ 2,570	$ 0	$ 28,549	$ 39,186
Discontinued Operations, Disposed of by Sale | Banc Home Loan
Total gains or losses (realized/unrealized):
Servicing rights carried at fair value			0		0			$ 37,700
MSRs sold	$ 37,800	0	0	0	37,772	$ 37,772
Loans held-for-sale, carried at fair value		26,415		26,415		26,415		38,696
Mortgage servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period		4,953	42,833	31,852	76,121
Transfers in and (out) of Level 3		0	0	0	0
Total gains or losses (realized/unrealized):
Included in earnings—fair value adjustment		(216)	(3,035)	(1,090)	(3,079)
Additions		0	3,751	0	11,552
Sales, paydowns, settlements, and other		(2,675)	(1,440)	(28,700)	(42,485)
Balance at end of period		2,062	42,109	2,062	42,109	2,062
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		42,962	66,701	98,940	58,260
Transfers in and (out) of Level 3		0	0	0	0
Total gains or losses (realized/unrealized):
Included in earnings—fair value adjustment		(248)	6	(254)	15
Additions		2,765	17,935	27,385	35,231
Sales, paydowns, settlements, and other		(12,245)	(11,097)	(92,837)	(19,961)
Balance at end of period		33,234	73,545	33,234	73,545	33,234
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		$ 20,900	$ 52,100	$ 20,900	$ 52,100	$ 20,900	$ 24,000	$ 32,300	$ 66,700	$ 58,300

FAIR VALUES OF FINANCIAL INST63

FAIR VALUES OF FINANCIAL INSTRUMENTS - Quantitative Information About Level 3 Fair Value Measurements (Detail) $ in Thousands	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Fair value of held-for-sale MSRs	$ 70	$ 29,793
Recurring | Significant Unobservable Inputs (Level 3)
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
SBA servicing rights	2,062	31,852
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
SBA servicing rights	$ 1,992	$ 2,059
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Discounted cash flow | Discount Rate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Prepayment rate	0.1300	0.1300
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Discounted cash flow | Discount Rate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Prepayment rate	0.1300	0.1300
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Discounted cash flow | Discount Rate | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Prepayment rate	0.1300	0.1300
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Discounted cash flow | Constant Prepayment Rate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Prepayment rate	0.1239	0.1004
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Discounted cash flow | Constant Prepayment Rate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Prepayment rate	0.4476	0.4997
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Discounted cash flow | Constant Prepayment Rate | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Prepayment rate	0.1644	0.1654

FAIR VALUES OF FINANCIAL INST64

FAIR VALUES OF FINANCIAL INSTRUMENTS - Fair Value Option Loans Held-for-Sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Continuing Operations
Fair Value
Total loans	$ 12,334		$ 12,334		$ 66,603
Non-accrual loans	919		919		60,999
Unpaid Principal Balance
Total loans	13,021		13,021		67,415
Non-accrual loans	938		938		61,900
Difference
Total loans	(687)		(687)		(812)
Non-accrual loans	(19)		(19)		(901)
Non-accrual loans, guaranteed by US government	753		753		54,200
Net gains (losses) from fair value changes	6	$ 2	(20)	$ 8
Discontinued Operations
Fair Value
Total loans	26,415		26,415		38,696
Non-accrual loans	10,732		10,732		24,073
Unpaid Principal Balance
Total loans	27,510		27,510		39,541
Non-accrual loans	10,887		10,887		24,297
Difference
Total loans	(1,095)		(1,095)		(845)
Non-accrual loans	(155)		(155)		(224)
Non-accrual loans, guaranteed by US government	8,600		8,600		$ 20,700
Net gains (losses) from fair value changes	$ (247)	$ 2,459	$ (245)	$ 2,373

FAIR VALUES OF FINANCIAL INST65

FAIR VALUES OF FINANCIAL INSTRUMENTS - Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Quoted Prices in Active Markets for Identical Assets (Level 1) | Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 0	$ 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other consumer
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
Significant Other Observable Inputs (Level 2) | Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0	0
Significant Other Observable Inputs (Level 2) | Other consumer
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
Significant Unobservable Inputs (Level 3) | Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	276	1,415
Significant Unobservable Inputs (Level 3) | Other consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	4
Significant Unobservable Inputs (Level 3) | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		174
Carrying Value | Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	276	1,415
Carrying Value | Other consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 4
Carrying Value | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		$ 174

FAIR VALUES OF FINANCIAL INST66

FAIR VALUES OF FINANCIAL INSTRUMENTS - Gains and (Losses) on Non-Recurring Assets (Detail) - Nonrecurring - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Impaired loans | 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	$ (115)	$ 0
Impaired loans | 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	(231)	0	(292)	0
Impaired loans | 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	(380)	0
Impaired loans | 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	(141)	0
Impaired loans | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains and (losses) recognized on assets measured at fair value	0	(29)	0	(29)
Other real estate owned | Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains and (losses) recognized on assets measured at fair value	$ 183	$ 36	$ 194	$ 28

FAIR VALUES OF FINANCIAL INST67

FAIR VALUES OF FINANCIAL INSTRUMENTS - Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial assets
Cash and cash equivalents	$ 385,691	$ 387,699
Securities available-for-sale	2,297,124	2,575,469
Federal Home Loan Bank and other bank stock	75,737	75,654
Loans held-for-sale	40,247	105,806
Loans and leases receivable, net of ALLL	6,960,050	6,601,767
Accrued interest receivable	37,138	35,355
Derivative assets	1,686	1,005
Financial liabilities
Deposits	6,902,576	7,063,613
Advances from Federal Home Loan Bank	1,800,336	1,695,039
Long term debt	176,103	180,560
Derivative liabilities	1,650	1,033
Accrued interest payable	8,279	7,321
Discontinued Operations, Disposed of by Sale | Banc Home Loan
Financial liabilities
Loans held-for-sale, carried at fair value	26,415	38,696
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets
Cash and cash equivalents	385,691	387,699
Securities available-for-sale	0	0
Federal Home Loan Bank and other bank stock	0	0
Loans held-for-sale	0	0
Loans and leases receivable, net of ALLL	0	0
Accrued interest receivable	37,138	35,355
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	8,279	7,321
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring
Financial assets
Loans held-for-sale	0	0
Significant Other Observable Inputs (Level 2)
Financial assets
Cash and cash equivalents	0	0
Securities available-for-sale	2,297,124	2,575,469
Federal Home Loan Bank and other bank stock	75,737	75,654
Loans held-for-sale	7,013	6,866
Loans and leases receivable, net of ALLL	0	0
Accrued interest receivable	0	0
Derivative assets	1,686	1,005
Financial liabilities
Deposits	0	0
Advances from Federal Home Loan Bank	1,800,336	1,695,039
Long term debt	176,103	180,560
Derivative liabilities	1,650	1,033
Accrued interest payable	0	0
Significant Other Observable Inputs (Level 2) | Recurring
Financial assets
Loans held-for-sale	5,515	6,359
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	5,500	6,400
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	33,234	98,940
Loans and leases receivable, net of ALLL	6,960,050	6,601,767
Accrued interest receivable	0	0
Derivative assets	0	0
Financial liabilities
Deposits	6,902,576	7,063,613
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	33,234	98,940
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	20,900	32,300
Carrying Value
Financial assets
Cash and cash equivalents	385,691	387,699
Securities available-for-sale	2,297,124	2,575,469
Federal Home Loan Bank and other bank stock	75,737	75,654
Loans held-for-sale	40,168	105,765
Loans and leases receivable, net of ALLL	6,979,326	6,610,074
Accrued interest receivable	37,138	35,355
Derivative assets	1,686	1,005
Financial liabilities
Deposits	7,135,794	7,292,903
Advances from Federal Home Loan Bank	1,805,000	1,695,000
Long term debt	173,017	172,941
Derivative liabilities	1,650	1,033
Accrued interest payable	8,279	7,321
Carrying Value | Recurring
Financial assets
Loans held-for-sale	$ 38,749	$ 105,299

INVESTMENT SECURITIES - Summary

INVESTMENT SECURITIES - Summary of Amortized Cost and Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	$ 2,324,549	$ 2,567,393
Gross Unrealized Gains	7,018	23,679
Gross Unrealized Losses	(34,443)	(15,603)
Fair Value	2,297,124	2,575,469
SBA loan pools securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	982	1,056
Gross Unrealized Gains	0	2
Gross Unrealized Losses	(15)	0
Fair Value	967	1,058
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	485,503	492,255
Gross Unrealized Gains	0	10
Gross Unrealized Losses	(28,713)	(15,336)
Fair Value	456,790	476,929
Non-agency residential mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	483	741
Gross Unrealized Gains	15	16
Gross Unrealized Losses	(2)	(1)
Fair Value	496	756
Non-agency commercial mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	160,970	305,172
Gross Unrealized Gains	7	5,339
Gross Unrealized Losses	(2,619)	0
Fair Value	158,358	310,511
Collateralized loan obligations
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	1,676,611	1,691,455
Gross Unrealized Gains	6,996	11,129
Gross Unrealized Losses	(3,094)	(266)
Fair Value	$ 1,680,513	1,702,318
Corporate debt securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost		76,714
Gross Unrealized Gains		7,183
Gross Unrealized Losses		0
Fair Value		$ 83,897

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, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Gross realized gains on sales and calls of securities available-for-sale	$ 278	$ 1,099	$ 5,519	$ 4,455
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	278	1,099	5,519	4,455
Proceeds from sales and calls of securities available-for-sale	325,439	475,586	612,956	886,590
Tax expense on sales and calls of securities available-for-sale	$ 81	$ 457	$ 1,618	$ 1,853

INVESTMENT SECURITIES - Additio

INVESTMENT SECURITIES - Additional Information (Detail)	3 Months Ended			6 Months Ended
	Jun. 30, 2018USD ($)security	Mar. 31, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)security	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)security
Investments, Debt and Equity Securities [Abstract]
Held-to-maturity securities transferred			$ 740,900,000
Increase to AOCI from transfer			22,000,000
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales of securities available-for-sale				$ 392,556,000	$ 810,786,000
OTTI on investment securities	$ 0		$ 0	$ 0	$ 0
Securities available for sale portfolio | security	168			168		191
Available for sale securities in unrealized loss position | security	76			76		33
Collateral Pledged
Debt Securities, Available-for-sale [Line Items]
Securities pledged	$ 527,500,000			$ 527,500,000		$ 564,400,000
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales of securities available-for-sale		$ 76,800,000

INVESTMENT SECURITIES - Summa71

INVESTMENT SECURITIES - Summary of Investment Securities with Unrealized Losses (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value
Less Than 12 Months	$ 465,641	$ 109,214
12 Months or Longer	436,801	470,240
Total	902,442	579,454
Gross Unrealized Losses
Less Than 12 Months	(6,103)	(301)
12 Months or Longer	(28,340)	(15,302)
Total	(34,443)	(15,603)
SBA loan pools securities
Fair Value
Less Than 12 Months	966
12 Months or Longer	0
Total	966
Gross Unrealized Losses
Less Than 12 Months	(15)
12 Months or Longer	0
Total	(15)
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Fair Value
Less Than 12 Months	16,907	4,880
12 Months or Longer	436,740	470,092
Total	453,647	474,972
Gross Unrealized Losses
Less Than 12 Months	(374)	(35)
12 Months or Longer	(28,339)	(15,301)
Total	(28,713)	(15,336)
Non-agency residential mortgage-backed securities
Fair Value
Less Than 12 Months	95	0
12 Months or Longer	61	148
Total	156	148
Gross Unrealized Losses
Less Than 12 Months	(1)	0
12 Months or Longer	(1)	(1)
Total	(2)	(1)
Non-agency commercial mortgage-backed securities
Fair Value
Less Than 12 Months	152,392
12 Months or Longer	0
Total	152,392
Gross Unrealized Losses
Less Than 12 Months	(2,619)
12 Months or Longer	0
Total	(2,619)
Collateralized loan obligations
Fair Value
Less Than 12 Months	295,281	104,334
12 Months or Longer	0	0
Total	295,281	104,334
Gross Unrealized Losses
Less Than 12 Months	(3,094)	(266)
12 Months or Longer	0	0
Total	$ (3,094)	$ (266)

LOANS AND LEASES AND ALLOWANC72

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Schedule of Loans and Leases Receivable (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 7,036,004		$ 6,659,407	$ 5,956,337
Allowance for loan and lease losses	(56,678)	$ (54,763)	(49,333)	(42,385)	$ (42,736)	$ (40,444)
Loans and leases receivable, net	6,979,326		6,610,074
NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	818,876		806,933
Traditional Loans and Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	6,217,128		5,852,474
Traditional Loans and Leases | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	211,110		182,960
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,742,559		1,701,951	1,560,916
Allowance for loan and lease losses	(16,864)	(17,571)	(14,280)	(10,495)	(10,888)	(7,584)
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	793,855		717,415	716,771
Allowance for loan and lease losses	(5,732)	(5,417)	(4,971)	(5,126)	(4,543)	(5,467)
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,959,965		1,816,141	1,545,888
Allowance for loan and lease losses	(14,630)	(14,219)	(13,265)	(10,686)	(11,029)	(11,376)
Commercial | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	78,092		78,699	77,254
Allowance for loan and lease losses	(1,840)	(1,577)	(1,701)	(1,084)	(1,146)	(939)
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	211,110		182,960	156,246
Allowance for loan and lease losses	(3,419)	(3,220)	(3,318)	(2,974)	(3,018)	(2,015)
Commercial | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0		13	173
Allowance for loan and lease losses	0	$ 0	0	$ (3)	$ (5)	$ (6)
Commercial | NTM Loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0		0
Commercial | NTM Loans | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0		0
Commercial | NTM Loans | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0		0
Commercial | NTM Loans | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0		0
Commercial | NTM Loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0		0
Commercial | NTM Loans | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0		0
Commercial | Traditional Loans and Leases | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,742,559		1,701,951
Commercial | Traditional Loans and Leases | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	793,855		717,415
Commercial | Traditional Loans and Leases | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,959,965		1,816,141
Commercial | Traditional Loans and Leases | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	78,092		78,699
Commercial | Traditional Loans and Leases | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	211,110		182,960
Commercial | Traditional Loans and Leases | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0		13
Consumer | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,174,183		2,055,649
Consumer | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	76,240		106,579
Consumer | NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	818,876		806,933
Consumer | NTM Loans | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	815,374		803,355
Consumer | NTM Loans | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,502		3,578
Consumer | Traditional Loans and Leases | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,358,809		1,252,294
Consumer | Traditional Loans and Leases | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 72,738		$ 103,001

LOANS AND LEASES AND ALLOWANC73

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Non Traditional Mortgage Loans Additional Information (Details)	6 Months Ended
	Jun. 30, 2018
Consumer | NTM Loans | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest only notes balloon payment period	15 years

LOANS AND LEASES AND ALLOWANC74

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Non Traditional Mortgages Portfolio (Detail) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018USD ($)Loan	Dec. 31, 2017USD ($)Loan	Jun. 30, 2017USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 7,036,004	$ 6,659,407	$ 5,956,337
NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 818,876	$ 806,933
Consumer | NTM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | Loan	614	592
Loans	$ 818,876	$ 806,933
Consumer | NTM Loans | Loan Portfolio Concentration Risk | Nontraditional Mortgage Loans Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	100.00%	100.00%
Consumer | NTM Loans | Loan Portfolio Concentration Risk | Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	11.60%	12.10%
Consumer | NTM Loans | Green Loans (HELOC) - first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | Loan	602	580
Loans	$ 815,374	$ 803,355
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	99.60%	99.60%
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | Loan	96	101
Loans	$ 72,720	$ 82,197
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	8.90%	10.20%
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | Loan	495	468
Loans	$ 739,053	$ 717,484
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	90.30%	88.90%
Consumer | NTM Loans | Green Loans (HELOC) - first liens | Negative amortization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | Loan	11	11
Loans	$ 3,601	$ 3,674
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	0.40%	0.50%
Consumer | NTM Loans | Green Loans (HELOC) - second liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | Loan	12	12
Loans	$ 3,502	$ 3,578
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	0.40%	0.40%
Consumer | NTM Loans | Green Loans (HELOC) - second liens | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count | Loan	12	12
Loans	$ 3,502	$ 3,578
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	0.40%	0.40%

LOANS AND LEASES AND ALLOWANC75

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Allowance for Loan and Lease Losses Additional Information (Details) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)rolling_quarter
Accounts, Notes, Loans and Financing Receivable [Line Items]
Credit risk monitoring look back period | rolling_quarter						28
Charge-off amount	$ 950		$ 2,898	$ 15,589	$ 3,255
Loans	7,036,004		$ 5,956,337	7,036,004	$ 5,956,337	$ 6,659,407
Line of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-off amount		$ 13,900
Loans		$ 15,000
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded loan commitments	$ 4,000			$ 4,000		$ 3,700

LOANS AND LEASES AND ALLOWANC76

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Allowance for Loan and Lease Losses (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 54,763	$ 49,333	$ 42,736	$ 49,333	$ 40,444
Loans and leases charged off	(950)		(2,898)	(15,589)	(3,255)
Recoveries of loans and leases previously charged off	212		44	782	110
Provision for loan and lease losses	2,653		2,503	22,152	5,086
Balance at end of period	$ 56,678	$ 54,763	$ 42,385	$ 56,678	$ 42,385

LOANS AND LEASES AND ALLOWANC77

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE 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, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 54,763	$ 49,333	$ 42,736	$ 49,333	$ 40,444
Charge-offs	(950)		(2,898)	(15,589)	(3,255)
Recoveries	212		44	782	110
Provision	2,653		2,503	22,152	5,086
Balance at end of period	56,678	54,763	42,385	56,678	42,385
Individually evaluated for impairment						$ 1,188		$ 424
Collectively evaluated for impairment						55,490		41,937
Total ending ALLL balance	54,763	49,333	42,736	49,333	40,444	56,678	$ 49,333	42,385
Loans:
Individually evaluated for impairment						27,365		10,844
Collectively evaluated for impairment						7,008,639		5,941,192
Total ending loan balances						7,036,004	6,659,407	5,956,337
Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			24		24
Total ending ALLL balance			24		24			24
Loans:
Total ending loan balances								4,301
Commercial | Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	17,571	14,280	10,888	14,280	7,584
Charge-offs	(276)		(132)	(347)	(382)
Recoveries	36		0	97	0
Provision	(467)		(261)	2,834	3,293
Balance at end of period	16,864	17,571	10,495	16,864	10,495
Individually evaluated for impairment						595		0
Collectively evaluated for impairment						16,269		10,495
Total ending ALLL balance	17,571	14,280	10,888	14,280	7,584	16,864	14,280	10,495
Loans:
Individually evaluated for impairment						5,829		0
Collectively evaluated for impairment						1,736,730		1,560,264
Total ending loan balances						1,742,559	1,701,951	1,560,916
Commercial | Commercial and industrial | Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			0		0
Total ending ALLL balance			0		0			0
Loans:
Total ending loan balances								652
Commercial | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	5,417	4,971	4,543	4,971	5,467
Charge-offs	0		(113)	0	(113)
Recoveries	0		0	0	0
Provision	315		696	761	(228)
Balance at end of period	5,732	5,417	5,126	5,732	5,126
Individually evaluated for impairment						0		0
Collectively evaluated for impairment						5,732		5,121
Total ending ALLL balance	5,417	4,971	4,543	4,971	5,467	5,732	4,971	5,126
Loans:
Individually evaluated for impairment						0		0
Collectively evaluated for impairment						793,855		715,650
Total ending loan balances						793,855	717,415	716,771
Commercial | Commercial real estate | Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			5		5
Total ending ALLL balance			5		5			5
Loans:
Total ending loan balances								1,121
Commercial | Multifamily
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	14,219	13,265	11,029	13,265	11,376
Charge-offs	(8)		0	(8)	0
Recoveries	0		0	0	0
Provision	419		(343)	1,373	(690)
Balance at end of period	14,630	14,219	10,686	14,630	10,686
Individually evaluated for impairment						0		0
Collectively evaluated for impairment						14,630		10,686
Total ending ALLL balance	14,219	13,265	11,029	13,265	11,376	14,630	13,265	10,686
Loans:
Individually evaluated for impairment						0		0
Collectively evaluated for impairment						1,959,965		1,545,888
Total ending loan balances						1,959,965	1,816,141	1,545,888
Commercial | Multifamily | Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			0		0
Total ending ALLL balance			0		0			0
Loans:
Total ending loan balances								0
Commercial | SBA
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	1,577	1,701	1,146	1,701	939
Charge-offs	(302)		(293)	(683)	(293)
Recoveries	167		31	232	74
Provision	398		200	590	364
Balance at end of period	1,840	1,577	1,084	1,840	1,084
Individually evaluated for impairment						124		0
Collectively evaluated for impairment						1,716		1,065
Total ending ALLL balance	1,577	1,701	1,146	1,701	939	1,840	1,701	1,084
Loans:
Individually evaluated for impairment						646		0
Collectively evaluated for impairment						77,446		74,726
Total ending loan balances						78,092	78,699	77,254
Commercial | SBA | Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			19		19
Total ending ALLL balance			19		19			19
Loans:
Total ending loan balances								2,528
Commercial | Construction
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	3,220	3,318	3,018	3,318	2,015
Charge-offs	0		(29)	0	(29)
Recoveries	0		0	0	0
Provision	199		(15)	101	988
Balance at end of period	3,419	3,220	2,974	3,419	2,974
Individually evaluated for impairment						0		0
Collectively evaluated for impairment						3,419		2,974
Total ending ALLL balance	3,220	3,318	3,018	3,318	2,015	3,419	3,318	2,974
Loans:
Individually evaluated for impairment						0		0
Collectively evaluated for impairment						211,110		156,246
Total ending loan balances						211,110	182,960	156,246
Commercial | Construction | Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			0		0
Total ending ALLL balance			0		0			0
Loans:
Total ending loan balances								0
Commercial | Lease financing
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	0	0	5	0	6
Charge-offs	0		0	0	0
Recoveries	5		10	9	29
Provision	(5)		(12)	(9)	(32)
Balance at end of period	0	0	3	0	3
Individually evaluated for impairment						0		0
Collectively evaluated for impairment						0		3
Total ending ALLL balance	0	0	5	0	6	0	0	3
Loans:
Individually evaluated for impairment						0		0
Collectively evaluated for impairment						0		173
Total ending loan balances						0	13	173
Commercial | Lease financing | Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			0		0
Total ending ALLL balance			0		0			0
Loans:
Total ending loan balances								0
Consumer | Single Family Residential Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	11,969	10,996	11,240	10,996	12,075
Charge-offs	(364)		(2,331)	(479)	(2,412)
Recoveries	0		0	436	1
Provision	1,631		2,100	2,283	1,345
Balance at end of period	13,236	11,969	11,009	13,236	11,009
Individually evaluated for impairment						461		424
Collectively evaluated for impairment						12,775		10,585
Total ending ALLL balance	11,969	10,996	11,240	10,996	12,075	13,236	10,996	11,009
Loans:
Individually evaluated for impairment						20,140		9,971
Collectively evaluated for impairment						2,154,043		1,768,565
Total ending loan balances						2,174,183		1,778,536
Consumer | Single Family Residential Mortgage | Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			0		0
Total ending ALLL balance			0		0			0
Loans:
Total ending loan balances								0
Consumer | Other Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	790	802	867	802	982
Charge-offs	0		0	(14,072)	(26)
Recoveries	4		3	8	6
Provision	163		138	14,219	46
Balance at end of period	957	790	1,008	957	1,008
Individually evaluated for impairment						8		0
Collectively evaluated for impairment						949		1,008
Total ending ALLL balance	$ 790	$ 802	867	$ 802	982	957	$ 802	1,008
Loans:
Individually evaluated for impairment						750		873
Collectively evaluated for impairment						75,490		119,680
Total ending loan balances						$ 76,240		120,553
Consumer | Other Consumer | Purchased Credit Impaired
Allowance for Loan and Lease Losses [Roll Forward]
Balance at end of period			0		0
Total ending ALLL balance			$ 0		$ 0			0
Loans:
Total ending loan balances								$ 0

LOANS AND LEASES AND ALLOWANC78

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Loans and Leases Individually Evaluated for Impairment by Class of Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Unpaid Principal Balance
Total	$ 27,362		$ 27,362		$ 24,026
Recorded Investment
Total	27,365		27,365		24,050
Allowance for Loan and Lease Losses	1,188		1,188		1,217
Average Recorded Investment	27,588	$ 10,863	26,879	$ 12,168
Interest Income Recognized	62	44	125	89
Cash Basis Interest Recognized	51	48	105	92
Commercial | Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded	5,270		5,270		471
With an allowance recorded	596		596		3,146
Recorded Investment
With no related allowance recorded	5,234		5,234		453
With an allowance recorded	595		595		3,129
Allowance for Loan and Lease Losses	595		595		498
Average Recorded Investment	5,900		5,616
Interest Income Recognized	1		4
Cash Basis Interest Recognized	1		4
Commercial | SBA
Unpaid Principal Balance
With no related allowance recorded	554		554		342
With an allowance recorded	137		137		635
Recorded Investment
With no related allowance recorded	522		522		335
With an allowance recorded	124		124		609
Allowance for Loan and Lease Losses	124		124		435
Average Recorded Investment	654		514
Interest Income Recognized	0		0
Cash Basis Interest Recognized	0		0
Commercial | Construction
Recorded Investment
Average Recorded Investment		0		764
Interest Income Recognized		0		0
Cash Basis Interest Recognized		0		0
Consumer | Single family residential mortgage
Unpaid Principal Balance
With no related allowance recorded	3,989		3,989		7,521
With an allowance recorded	16,042		16,042		7,090
Recorded Investment
With no related allowance recorded	3,995		3,995		7,553
With an allowance recorded	16,145		16,145		7,146
Allowance for Loan and Lease Losses	461		461		277
Average Recorded Investment	20,274	9,985	19,994	10,520
Interest Income Recognized	58	42	115	85
Cash Basis Interest Recognized	47	46	96	89
Consumer | Other consumer
Unpaid Principal Balance
With no related allowance recorded	554		554		4,664
With an allowance recorded	220		220		157
Recorded Investment
With no related allowance recorded	557		557		4,663
With an allowance recorded	193		193		162
Allowance for Loan and Lease Losses	8		8		$ 7
Average Recorded Investment	760	878	755	884
Interest Income Recognized	3	2	6	4
Cash Basis Interest Recognized	$ 3	$ 2	$ 5	$ 3

LOANS AND LEASES AND ALLOWANC79

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Aging of Recorded Investment in Past Due Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 26,550	$ 41,629
Current	7,009,454	6,617,778
Total ending loan balances	7,036,004	6,659,407	$ 5,956,337
30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,948	22,830
60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,149	9,257
Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,453	9,542
NTM Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	818,876	806,933
Traditional Loans and Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	25,066	29,519
Current	6,192,062	5,822,955
Total ending loan balances	6,217,128	5,852,474
Traditional Loans and Leases | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,158	13,770
Traditional Loans and Leases | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,455	7,378
Traditional Loans and Leases | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,453	8,371
Traditional Loans and Leases | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	211,110	182,960
Consumer | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	2,174,183	2,055,649
Consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	76,240	106,579
Consumer | NTM Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,484	12,110
Current	817,392	794,823
Total ending loan balances	818,876	806,933
Consumer | NTM Loans | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	790	9,060
Consumer | NTM Loans | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	694	1,879
Consumer | NTM Loans | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	1,171
Consumer | NTM Loans | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,484	12,110
Current	813,890	791,245
Total ending loan balances	815,374	803,355
Consumer | NTM Loans | Single family residential mortgage | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	790	9,060
Consumer | NTM Loans | Single family residential mortgage | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	694	1,879
Consumer | NTM Loans | Single family residential mortgage | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	1,171
Consumer | NTM Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	3,502	3,578
Total ending loan balances	3,502	3,578
Consumer | NTM Loans | Other consumer | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Consumer | NTM Loans | Other consumer | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Consumer | NTM Loans | Other consumer | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Consumer | Traditional Loans and Leases | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	14,864	16,244
Current	1,343,945	1,236,050
Total ending loan balances	1,358,809	1,252,294
Consumer | Traditional Loans and Leases | Single family residential mortgage | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,647	6,862
Consumer | Traditional Loans and Leases | Single family residential mortgage | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,422	3,370
Consumer | Traditional Loans and Leases | Single family residential mortgage | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,795	6,012
Consumer | Traditional Loans and Leases | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,094	3,699
Current	70,644	99,302
Total ending loan balances	72,738	103,001
Consumer | Traditional Loans and Leases | Other consumer | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,831	3,194
Consumer | Traditional Loans and Leases | Other consumer | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	413
Consumer | Traditional Loans and Leases | Other consumer | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	263	92
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	1,742,559	1,701,951	1,560,916
Commercial | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	793,855	717,415	716,771
Commercial | Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	1,959,965	1,816,141	1,545,888
Commercial | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	78,092	78,699	77,254
Commercial | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	211,110	182,960	156,246
Commercial | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	13	$ 173
Commercial | NTM Loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Commercial | NTM Loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Commercial | NTM Loans | Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Commercial | NTM Loans | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Commercial | NTM Loans | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Commercial | NTM Loans | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Commercial | Traditional Loans and Leases | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,181	4,679
Current	1,736,378	1,697,272
Total ending loan balances	1,742,559	1,701,951
Commercial | Traditional Loans and Leases | Commercial and industrial | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,075	136
Commercial | Traditional Loans and Leases | Commercial and industrial | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,509	3,595
Commercial | Traditional Loans and Leases | Commercial and industrial | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	597	948
Commercial | Traditional Loans and Leases | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	793,855	717,415
Total ending loan balances	793,855	717,415
Commercial | Traditional Loans and Leases | Commercial real estate | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Commercial real estate | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Commercial real estate | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	1,959,965	1,816,141
Total ending loan balances	1,959,965	1,816,141
Commercial | Traditional Loans and Leases | Multifamily | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Multifamily | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Multifamily | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,460	4,897
Current	76,632	73,802
Total ending loan balances	78,092	78,699
Commercial | Traditional Loans and Leases | SBA | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	138	3,578
Commercial | Traditional Loans and Leases | SBA | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	524	0
Commercial | Traditional Loans and Leases | SBA | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	798	1,319
Commercial | Traditional Loans and Leases | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	467	0
Current	210,643	182,960
Total ending loan balances	211,110	182,960
Commercial | Traditional Loans and Leases | Construction | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	467	0
Commercial | Traditional Loans and Leases | Construction | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Construction | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial | Traditional Loans and Leases | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		0
Current		13
Total ending loan balances	$ 0	13
Commercial | Traditional Loans and Leases | Lease financing | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		0
Commercial | Traditional Loans and Leases | Lease financing | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		0
Commercial | Traditional Loans and Leases | Lease financing | Greater than 89 Days Past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		$ 0

LOANS AND LEASES AND ALLOWANC80

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Composition of Nonaccrual Loans and Leases (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	$ 22,290	$ 19,382
Loans past due 90 days or more and still accruing	0	0
Specific allowance on non accrual loans	1,100	1,100
NTM Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	1,538	1,171
Loans past due 90 days or more and still accruing	0	0
Traditional Loans and Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	20,752	18,211
Loans past due 90 days or more and still accruing	0	0
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	5,920	3,723
Commercial | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	1,082	1,781
Commercial | NTM Loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	0	0
Commercial | NTM Loans | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	0	0
Commercial | Traditional Loans and Leases | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	5,920	3,723
Commercial | Traditional Loans and Leases | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	1,082	1,781
Consumer | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	14,832	9,347
Consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	456	4,531
Consumer | NTM Loans | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	1,538	1,171
Consumer | NTM Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	0	0
Consumer | Traditional Loans and Leases | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	13,294	8,176
Consumer | Traditional Loans and Leases | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total non-accrual loans and leases	$ 456	$ 4,531

LOANS AND LEASES AND ALLOWANC81

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Nonaccrual Loans and Leases Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Consumer | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans in process of foreclosure	$ 2.6	$ 4.3

LOANS AND LEASES AND ALLOWANC82

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Components of Troubled Debt Restructured Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	$ 8,349	$ 8,321
NTM Loans
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	2,977	2,993
Traditional Loans and Leases
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	5,372	5,328
Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	2,746	2,675
Commercial | NTM Loans | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	0	0
Commercial | Traditional Loans and Leases | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	2,746	2,675
Consumer | Single family residential mortgage
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	5,309	5,352
Consumer | Other consumer
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	294	294
Consumer | NTM Loans | Single family residential mortgage
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	2,683	2,699
Consumer | NTM Loans | Other consumer
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	294	294
Consumer | Traditional Loans and Leases | Single family residential mortgage
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	2,626	2,653
Consumer | Traditional Loans and Leases | Other consumer
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans and leases	$ 0	$ 0

LOANS AND LEASES AND ALLOWANC83

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Loans and Leases by Class Modified as Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Loan	Jun. 30, 2017USD ($)Loan	Jun. 30, 2018USD ($)Loan	Jun. 30, 2017USD ($)Loan
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	$ 0
Commercial
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0		2
Pre- Modification Outstanding Recorded Investment	$ 0		$ 171
Post-Modification Outstanding Recorded Investment	$ 0		$ 163
Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0		2
Pre- Modification Outstanding Recorded Investment	$ 0		$ 171
Post-Modification Outstanding Recorded Investment	$ 0		$ 163
Consumer
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		1		3
Pre- Modification Outstanding Recorded Investment		$ 1,150		$ 2,416
Post-Modification Outstanding Recorded Investment		$ 1,160		$ 2,433
Consumer | Single family residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		1		3
Pre- Modification Outstanding Recorded Investment		$ 1,150		$ 2,416
Post-Modification Outstanding Recorded Investment		$ 1,160		$ 2,433

LOANS AND LEASES AND ALLOWANC84

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Summary of TDR Modification Type (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Loan	Jun. 30, 2017USD ($)Loan	Jun. 30, 2018USD ($)Loan	Jun. 30, 2017USD ($)Loan
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	$ 0
Commercial
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0		2
Post-Modification Outstanding Recorded Investment	$ 0		$ 163
Commercial | Change in Principal Payments and Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan			0
Post-Modification Outstanding Recorded Investment			$ 0
Commercial | Change in Principal Payments
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan			2
Post-Modification Outstanding Recorded Investment			$ 163
Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0		2
Post-Modification Outstanding Recorded Investment	$ 0		$ 163
Commercial | Commercial and industrial | Change in Principal Payments and Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan			0
Post-Modification Outstanding Recorded Investment			$ 0
Commercial | Commercial and industrial | Change in Principal Payments
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan			2
Post-Modification Outstanding Recorded Investment			$ 163
Consumer
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		1		3
Post-Modification Outstanding Recorded Investment		$ 1,160		$ 2,433
Consumer | Change in Principal Payments and Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		1		2
Post-Modification Outstanding Recorded Investment		$ 1,160		$ 1,290
Consumer | Change in Principal Payments
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		0		1
Post-Modification Outstanding Recorded Investment		$ 0		$ 1,143
Consumer | Single family residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		1		3
Post-Modification Outstanding Recorded Investment		$ 1,160		$ 2,433
Consumer | Single family residential mortgage | Change in Principal Payments and Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		1		2
Post-Modification Outstanding Recorded Investment		$ 1,160		$ 1,290
Consumer | Single family residential mortgage | Change in Principal Payments
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		0		1
Post-Modification Outstanding Recorded Investment		$ 0		$ 1,143

LOANS AND LEASES AND ALLOWANC85

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Troubled Debt Restructurings Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Loan	Jun. 30, 2017Loan	Jun. 30, 2018USD ($)Loan	Jun. 30, 2017USD ($)Loan
Receivables [Abstract]
Post-Modification Outstanding Recorded Investment	$ 0
Number of loans modified that had payments default during the period | Loan	1	0	1	1
Aggregate principal, loans modified that had payments default during the period	$ 100		$ 100	$ 124

LOANS AND LEASES AND ALLOWANC86

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Credit Quality Indicators Additional Information (Details)	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Loans delinquent	60 days

LOANS AND LEASES AND ALLOWANC87

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Risk Categories for Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 7,036,004	$ 6,659,407	$ 5,956,337
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	6,921,630	6,578,813
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	36,586	39,770
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	77,508	40,718
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	280	106
NTM Loans
Financing Receivable, Recorded Investment [Line Items]
Loans	818,876	806,933
Traditional Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Loans	6,217,128	5,852,474
Traditional Loans and Leases | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	6,106,855	5,774,646
Traditional Loans and Leases | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	35,009	38,175
Traditional Loans and Leases | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	74,984	39,547
Traditional Loans and Leases | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	280	106
Traditional Loans and Leases | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	211,110	182,960
Consumer | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans	2,174,183	2,055,649
Consumer | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	76,240	106,579
Consumer | NTM Loans
Financing Receivable, Recorded Investment [Line Items]
Loans	818,876	806,933
Consumer | NTM Loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	814,775	804,167
Consumer | NTM Loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	1,577	1,595
Consumer | NTM Loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	2,524	1,171
Consumer | NTM Loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | NTM Loans | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans	815,374	803,355
Consumer | NTM Loans | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	811,273	800,589
Consumer | NTM Loans | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	1,577	1,595
Consumer | NTM Loans | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	2,524	1,171
Consumer | NTM Loans | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | NTM Loans | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	3,502	3,578
Consumer | NTM Loans | Other consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	3,502	3,578
Consumer | NTM Loans | Other consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | NTM Loans | Other consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | NTM Loans | Other consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Traditional Loans and Leases | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans	1,358,809	1,252,294
Consumer | Traditional Loans and Leases | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,338,747	1,240,866
Consumer | Traditional Loans and Leases | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	3,846	2,282
Consumer | Traditional Loans and Leases | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	16,216	9,146
Consumer | Traditional Loans and Leases | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Traditional Loans and Leases | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	72,738	103,001
Consumer | Traditional Loans and Leases | Other consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	71,949	98,030
Consumer | Traditional Loans and Leases | Other consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	315	422
Consumer | Traditional Loans and Leases | Other consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	474	4,549
Consumer | Traditional Loans and Leases | Other consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans	1,742,559	1,701,951	1,560,916
Commercial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	793,855	717,415	716,771
Commercial | Multifamily
Financing Receivable, Recorded Investment [Line Items]
Loans	1,959,965	1,816,141	1,545,888
Commercial | SBA
Financing Receivable, Recorded Investment [Line Items]
Loans	78,092	78,699	77,254
Commercial | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	211,110	182,960	156,246
Commercial | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Loans	0	13	$ 173
Commercial | NTM Loans | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | NTM Loans | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | NTM Loans | Multifamily
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | NTM Loans | SBA
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | NTM Loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | NTM Loans | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans and Leases | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans	1,742,559	1,701,951
Commercial | Traditional Loans and Leases | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,680,576	1,651,628
Commercial | Traditional Loans and Leases | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	16,618	33,376
Commercial | Traditional Loans and Leases | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	45,365	16,947
Commercial | Traditional Loans and Leases | Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans and Leases | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	793,855	717,415
Commercial | Traditional Loans and Leases | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	778,948	713,131
Commercial | Traditional Loans and Leases | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	10,798	0
Commercial | Traditional Loans and Leases | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	4,109	4,284
Commercial | Traditional Loans and Leases | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans and Leases | Multifamily
Financing Receivable, Recorded Investment [Line Items]
Loans	1,959,965	1,816,141
Commercial | Traditional Loans and Leases | Multifamily | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,958,352	1,815,601
Commercial | Traditional Loans and Leases | Multifamily | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	540
Commercial | Traditional Loans and Leases | Multifamily | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	1,613	0
Commercial | Traditional Loans and Leases | Multifamily | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans and Leases | SBA
Financing Receivable, Recorded Investment [Line Items]
Loans	78,092	78,699
Commercial | Traditional Loans and Leases | SBA | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	70,266	72,417
Commercial | Traditional Loans and Leases | SBA | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	934	1,555
Commercial | Traditional Loans and Leases | SBA | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	6,612	4,621
Commercial | Traditional Loans and Leases | SBA | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	280	106
Commercial | Traditional Loans and Leases | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	211,110	182,960
Commercial | Traditional Loans and Leases | Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	208,017	182,960
Commercial | Traditional Loans and Leases | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	2,498	0
Commercial | Traditional Loans and Leases | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	595	0
Commercial | Traditional Loans and Leases | Construction | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans and Leases | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Loans	0	13
Commercial | Traditional Loans and Leases | Lease financing | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	0	13
Commercial | Traditional Loans and Leases | Lease financing | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans and Leases | Lease financing | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans and Leases | Lease financing | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 0	$ 0

LOANS AND LEASES AND ALLOWANC88

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Purchases, Sales, and Transfers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale	$ 0	$ 0	$ 0	$ 0
Transfers (to) Held-For-Sale	(205,278)	(176,689)	(211,824)	(418,976)
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale		0		0
Transfers (to) Held-For-Sale		(3,924)		(3,924)
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale		0		0
Transfers (to) Held-For-Sale		(1,329)		(1,329)
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale	0	0	0	0
Transfers (to) Held-For-Sale	(71,449)	0	(71,449)	(6,583)
Commercial | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale		0		0
Transfers (to) Held-For-Sale		(1,865)		(1,865)
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers from Held-For-Sale		0		0
Transfers (to) Held-For-Sale		(1,528)		(1,528)
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	(133,829)	$ (168,043)	(136,013)	$ (403,747)
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)

LOANS AND LEASES AND ALLOWANC89

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Accretable Yield, or Income Expected to be Collected (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 0	$ 38,691	$ 0	$ 41,181
Accretion of income	0	(1,884)	0	(3,833)
Changes in expected cash flows	0	0	0	(225)
Disposals	0	(34,570)	0	(34,886)
Balance at end of period	$ 0	$ 2,237	$ 0	$ 2,237

LOANS AND LEASES AND ALLOWANC90

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Purchase Credit Impaired Loans Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Sep. 30, 2017	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net gain on sale of loans	$ 821		$ 983	$ 780	$ 5,002
Consumer | Single family residential mortgage | Purchased Credit Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Aggregate unpaid principal			147,500
Aggregate carrying value			128,400
Fair value adjustments			$ 274
Net gain on sale of loans		$ 3,700

SERVICING RIGHTS - Schedule of

SERVICING RIGHTS - Schedule of Income (Loss) on MSR (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Transfers and Servicing [Abstract]
Servicing fees for sold loans with servicing retained	$ 909	$ 4,621	$ 4,140	$ 10,831
Losses on the fair value and runoff of servicing rights	39	(4,489)	(881)	(6,392)
Total income from servicing rights	$ 948	$ 132	$ 3,259	$ 4,439

SERVICING RIGHTS - Additional I

SERVICING RIGHTS - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
MSRs sold		$ 2,570	$ 0	$ 28,549	$ 39,186
Unpaid principal balances of conventional agency mortgage loans		334,100		3,550,000
Proceeds from sale of mortgage servicing rights		2,700		30,056	0
Loss on sale of mortgage servicing rights		155	0	2,450	0
Unpaid principal balance		233,200		233,200		$ 233,200	$ 3,940,000
Escrow balances		367		367		367	17,800
Fair value of held-for-sale MSRs		70		$ 70		70	29,793
Discount rate				9.00%
Prepayment speed calculation percentage				9.00%
Banc Home Loan | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
MSRs sold	$ 37,800	0	$ 0	$ 0	$ 37,772	37,772
SBA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Unpaid principal balance		$ 100,700		$ 100,700		$ 100,700	$ 101,000

SERVICING RIGHTS - Schedule o93

SERVICING RIGHTS - Schedule of Servicing Rights (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Transfers and Servicing [Abstract]
Mortgage servicing rights including discontinued operations	$ 2,062	$ 4,953	$ 31,852	$ 42,109	$ 42,833	$ 76,121
SBA servicing rights, at amortized cost	1,807	$ 1,786	1,856	$ 1,725	$ 1,618	$ 1,496
Total	$ 3,869		$ 33,708

SERVICING RIGHTS - Summary of K

SERVICING RIGHTS - Summary of Key Characteristics, Inputs and Economic Assumptions Used to Estimate Fair Value of MSRs (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Transfers and Servicing [Abstract]
Fair value of retained MSRs	$ 1,992	$ 2,059
Discount rate	13.00%	13.00%
Constant prepayment rate	16.44%	16.54%
Weighted-average life	5 years 29 days	5 years 27 days

SERVICING RIGHTS - Mortgage Ser

SERVICING RIGHTS - Mortgage Servicing Rights (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 4,953	$ 42,833	$ 31,852	$ 76,121
Additions	0	3,751	0	11,552
Sales of servicing rights	(2,570)	0	(28,549)	(39,186)
Changes in fair value resulting from valuation inputs or assumptions	(216)	(3,035)	(1,090)	(3,079)
Other	(105)	(1,440)	(151)	(3,299)
Balance at end of period	$ 2,062	$ 42,109	$ 2,062	$ 42,109

SERVICING RIGHTS - Small Busine

SERVICING RIGHTS - Small Business Administration Servicing Rights (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	$ 1,786	$ 1,618	$ 1,856	$ 1,496
Additions	109	160	109	346
Amortization, including prepayments	(83)	(53)	(153)	(100)
Impairment	(5)	0	(5)	(17)
Balance at end of period	$ 1,807	$ 1,725	$ 1,807	$ 1,725

OTHER REAL ESTATE OWNED - Activ

OTHER REAL ESTATE OWNED - Activities in Other Real Estate Owned (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other Real Estate and Foreclosed Assets [Roll Forward]
Balance at beginning of period	$ 1,024	$ 3,345	$ 1,796	$ 2,502
Additions	434	632	434	1,803
Sales and net direct write-downs	(992)	(710)	(1,711)	(1,035)
Net change in valuation allowance	244	0	191	(3)
Balance at end of period	$ 710	$ 3,267	$ 710	$ 3,267

OTHER REAL ESTATE OWNED - Act98

OTHER REAL ESTATE OWNED - Activities in Other Real Estate Owned Valuation Allowance (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Real Estate Owned Valuation Allowance [Roll Forward]
Balance at beginning of period	$ 295	$ 9	$ 242	$ 6
Additions	0	0	143	9
Recoveries	0	0	(90)	0
Net direct write-downs and removals from sale	(244)	0	(244)	(6)
Balance at end of period	$ 51	$ 9	$ 51	$ 9

OTHER REAL ESTATE OWNED - Expen

OTHER REAL ESTATE OWNED - Expenses Related to Foreclosed Assets Included in Loan Servicing and Foreclosure Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Real Estate Owned, Disclosure of Detailed Components [Abstract]
Net gain (loss) on sales	$ (61)	$ 36	$ 3	$ 31
Operating expenses, net of rental income	(54)	(9)	(102)	(13)
Total	$ (115)	$ 27	$ (99)	$ 18

GOODWILL AND OTHER INTANGIBL100

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Additional Information (Detail) - USD ($)	Aug. 31, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Goodwill		$ 37,144,000			$ 37,144,000		$ 37,144,000
Goodwill write-off	$ 0
Aggregate amortization expense		$ 827,000	$ 1,056,000		$ 1,670,000	$ 2,146,000
Trade name intangibles
Finite-Lived Intangible Assets [Line Items]
Intangible asset write-off				$ 90,000
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period					5 years 7 months 30 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
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
Intangible asset write-off				246,000
Commercial Banking
Finite-Lived Intangible Assets [Line Items]
Goodwill								$ 37,100,000
Mortgage Banking
Finite-Lived Intangible Assets [Line Items]
Goodwill								$ 2,100,000
Goodwill write-off				$ 2,100,000

GOODWILL AND OTHER INTANGIBL101

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Other Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Net Carrying Value	$ 7,683
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	30,904	$ 30,904
Accumulated Amortization	23,221	21,551
Net Carrying Value	$ 7,683	$ 9,353

GOODWILL AND OTHER INTANGIBL102

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Estimated Future Amortization Expense (Detail) $ in Thousands	Jun. 30, 2018USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2018	$ 1,337
2,019	2,195
2,020	1,518
2,021	1,081
2022 and After	1,552
Net Carrying Value	$ 7,683

FEDERAL HOME LOAN BANK ADVAN103

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS - Additional Information (Detail) - USD ($)	Jun. 30, 2017	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017
Line of Credit Facility [Line Items]
Advances from FHLB collateralized			$ 3,580,000,000	$ 2,900,000,000
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			210,000,000
Line of Credit | Line Of Credit Facility Maturing July 17, 2017
Line of Credit Facility [Line Items]
Line of credit facility	$ 75,000,000	$ 75,000,000
Repayment of line of credit	$ 50,000,000
Line of Credit | Line Of Credit Facility Maturing July 17, 2017 | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.25%
Federal Reserve Bank Advances
Line of Credit Facility [Line Items]
Line of credit facility			61,700,000
Other borrowings			0
Collateralized loan obligations
Line of Credit Facility [Line Items]
Advances from FHLB collateralized			397,000,000	405,600,000
Collateralized loan obligations | Federal Reserve Bank Advances
Line of Credit Facility [Line Items]
Collateral on line of credit facility			85,200,000
Federal Home Loan Bank of San Francisco
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB stock			48,700,000	$ 48,700,000
Amount of additional available borrowing			$ 803,800,000

FEDERAL HOME LOAN BANK ADVAN104

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS - Summary of Advances from the FHLB (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fixed rate:
Outstanding balance	$ 1,030,000	$ 550,000
Variable rate:
Outstanding balance	$ 775,000	$ 1,145,000
Weighted average interest rate	2.07%	1.40%
Minimum
Fixed rate:
Interest rate	1.23%	1.23%
Maximum
Fixed rate:
Interest rate	3.32%	3.00%
Weighted Average
Fixed rate:
Interest rate	2.40%	2.02%

LONG-TERM DEBT - Additional Inf

LONG-TERM DEBT - Additional Information (Detail)	Apr. 06, 2015USD ($)	Aug. 15, 2014$ / shares	May 21, 2014USD ($)$ / sharesshares	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)
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
Junior Subordinated Debt | 7.50% Amortizing Note Due May 15, 2017
Debt Instrument [Line Items]
Stated interest rate		7.50%	7.50%
Tangible equity units			$ 69,000,000
Tangible equity units dividend rate		8.00%	8.00%
Tangible equity units issued during period (in shares) | shares			1,380,000
Tangible equity units issued to underwriter during period (in shares) | shares			180,000
Tangible equity units, price per share (in dollars per share) | $ / shares			$ 50
Tangible equity units, convertible, conversion ratio			10.604556
Fair value of debt instrument			$ 14,600,000
Adjustments to additional paid in capital, issuance of tangible equity units			54,400,000
Tangible equity units issued, issuance costs			4,000,000
Tangible equity units issued, issuance costs, underwriter discount			3,300,000
Debt instrument, deferred finance cost			857,000
Adjustments to additional paid in capital, tangible equity units issued, issuance costs			$ 3,200,000
Equal quarterly cash installments per Amortizing Note			1
Installment payment due on August 15, 2014 per Amortizing Note			0.933333
Tangible equity units issued, stated value per unit (In dollars per unit) | $ / shares		$ 50

LONG-TERM DEBT - Summary of Lon

LONG-TERM DEBT - Summary of Long-Term Debt (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017	Apr. 06, 2015
Debt Instrument [Line Items]
Par Value	$ 175,000,000	$ 175,000,000
Discount	$ (1,983,000)	(2,059,000)
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
Discount	$ (1,983,000)	$ (2,059,000)

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Detail) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 1,779,000		$ (12,753,000)	$ (4,574,000)	$ (19,224,000)
Effective tax rate	11.40%		(534.70%)	(28.00%)	(363.40%)
Tax credit	$ 1,900,000		$ 15,700,000	$ 9,200,000	$ 24,500,000
Valuation allowance	0			0		$ 0
Net deferred tax asset	42,300,000			42,300,000		31,100,000
Valuation Allowance [Line Items]
Unrecognized tax benefits	1,100,000			1,100,000		1,000,000
Unrecognized tax benefits that would impact the effective tax rate	940,000			940,000
Accrued interest or penalties	$ 0			0		$ 0
ASU 2018-02 | Accumulated Other Comprehensive Income (Loss)
Valuation Allowance [Line Items]
Stranded tax effects		$ 496,000		496,000
ASU 2018-02 | Retained Earnings
Valuation Allowance [Line Items]
Stranded tax effects		$ (496,000)		(496,000)
Sale of mortgage servicing rights
Valuation Allowance [Line Items]
Increase (decrease) in deferred tax asset				3,000,000
Unrealized gain on securities available-for-sale
Valuation Allowance [Line Items]
Increase (decrease) in deferred tax asset				$ 10,400,000

RESERVE FOR LOSS ON REPURCHA108

RESERVE FOR LOSS ON REPURCHASED LOANS - Summary of Activities in Reserve for Loss Reimbursements on Sold Loans (Detail) - Representations and Warranties Obligations and Corporate Guarantees - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Loss Contingency Accrual [Roll Forward]
Balance at beginning of period	$ 3,426	$ 8,118	$ 6,306	$ 7,974
Initial provision for loan repurchases	53	673	55	1,515
Subsequent change in the provision	(218)	(403)	(2,006)	(728)
Utilization of reserve for loan repurchases	(112)	(360)	(1,206)	(733)
Balance at end of period	$ 3,149	$ 8,028	$ 3,149	$ 8,028

RESERVE FOR LOSS ON REPURCHA109

RESERVE FOR LOSS ON REPURCHASED LOANS - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Representations and Warranties Obligations and Corporate Guarantees
Loss Contingencies [Line Items]
Decrease in reserve for loss on repurchased loans	$ 277	$ 3,200
Portfolio Run-Off and Repurchase Settlement Activities
Loss Contingencies [Line Items]
Decrease in reserve for loss on repurchased loans		1,400
Methodology and Data Enhancements
Loss Contingencies [Line Items]
Decrease in reserve for loss on repurchased loans		$ 1,700

DERIVATIVE INSTRUMENTS - Amount

DERIVATIVE INSTRUMENTS - Amount and Market Value of Mortgage Banking Derivatives (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Notional Amount Assets	$ 92,779	$ 70,486
Derivatives asset, fair values	1,686	1,005
Notional Amount Liability	92,779	70,486
Derivatives liability, fair values	1,650	1,033
Interest rate swaps and caps on loans
Derivatives, Fair Value [Line Items]
Notional Amount Assets	92,779	70,486
Derivatives asset, fair values	1,686	1,005
Notional Amount Liability	92,779	70,486
Derivatives liability, fair values	$ 1,650	$ 1,033

EMPLOYEE STOCK COMPENSATION - A

EMPLOYEE STOCK COMPENSATION - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Mar. 24, 2016	Aug. 21, 2012	Jun. 30, 2018
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 | 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
Initial SAR | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		2 years
Award expiration period		10 years
SARs granted (in shares)		500,000
Base price per share (in dollars per share)		$ 12.12
Initial SAR | Tranche One | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting award rights		33.33%
Performance based restricted stock | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate grant date fair value market value	$ 5
2018 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available under new plan (in shares)			4,417,882
Awards made under the plan			0

EMPLOYEE STOCK COMPENSATION - S

EMPLOYEE STOCK COMPENSATION - Share Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 1,788	$ 4,798	$ 3,875	$ 7,691
Related tax benefits	524	1,992	1,136	3,195
Unrecognized Expense	12,066		$ 12,066
Weighted-Average Remaining Expected Recognition Period			2 years 8 months 9 days
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	80	420	$ 113	667
Unrecognized Expense	201		$ 201
Weighted-Average Remaining Expected Recognition Period			1 year 10 months 2 days
Restricted stock awards and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	1,708	4,378	$ 3,762	6,982
Unrecognized Expense	11,865		$ 11,865
Weighted-Average Remaining Expected Recognition Period			2 years 8 months 16 days
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 0	$ 0	$ 0	$ 42

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, 2018	Mar. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Number of Shares
Outstanding at beginning of period (in shares)	186,973	210,973	210,973
Exercised (in shares)			(24,000)
Outstanding at end of period (in shares)	186,973	186,973	186,973	210,973
Exercisable at end of period (in shares)	113,649		113,649
Weighted-Average Exercise Price Per Share
Outstanding at beginning of period (in dollars per share)	$ 13.54	$ 13.99	$ 13.99
Exercised (in dollars per share)			17.50
Outstanding at end of period (in dollars per share)	13.54	$ 13.54	13.54	$ 13.99
Exercisable at end of period (in dollars per share)	$ 13.69		$ 13.69
Weighted-Average Remaining Contract Term
Outstanding	6 years 3 months 19 days	6 years 6 months 19 days		6 years 11 months 18 days
Exercised			8 years 2 months
Exercisable at end of period	6 years
Aggregated Intrinsic Value
Outstanding	$ 1,123	$ 1,077	$ 1,123	$ 1,405
Excercised	0
Exercisable at end of period	$ 667		$ 667

EMPLOYEE STOCK COMPENSATION - N

EMPLOYEE STOCK COMPENSATION - Nonvested Stock Option Activity (Detail) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Number of Shares
Non-vested outstanding at beginning of period (in shares)	105,432	105,432
Vested (in shares)	(32,108)	(32,108)
Non-vested outstanding at end of period (in shares)	73,324	73,324
Weighted- Average Exercise Price per Share
Non-vested outstanding at beginning of period (in dollars per share)	$ 13.31	$ 13.31
Vested (in dollars per share)	13.28	13.28
Non-vested outstanding at end of period (in dollars per share)	$ 13.32	$ 13.32

EMPLOYEE STOCK COMPENSATION 115

EMPLOYEE STOCK COMPENSATION - Nonvested Restricted Stock Awards and Restricted Stock Units (Detail) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Restricted stock awards and restricted stock units
Number of Shares
Outstanding at beginning of period (in shares)	917,941	911,633
Granted (in shares)	539,084	578,862
Vested (in shares)	(305,952)	(318,217)
Forfeited (in shares)	(165,836)	(187,041)
Outstanding at end of period (in shares)	985,237	985,237
Weighted Average Grant Date Fair Value Per Share
Outstanding at beginning of period (in dollars per share)	$ 18.91	$ 18.73
Granted (in dollars per share)	18.80	18.84
Vested (in dollars per share)	19.17	19.01
Forfeited (in dollars per share)	18.24	18.27
Outstanding at end of period (in dollars per share)	$ 18.84	$ 18.84
Performance Shares
Number of Shares
Granted (in shares)	289,301	306,801
Vested (in shares)	(44,817)	(44,817)
Forfeited (in shares)	(41,782)	(47,420)

EMPLOYEE STOCK COMPENSATION 116

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, 2018	Mar. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
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	4 years 1 month 24 days	4 years 4 months 24 days	4 years 1 month 24 days	4 years 7 months 6 days
Exercisable at end of period	4 years 1 month 24 days		4 years 1 month 24 days
Aggregated Intrinsic Value
Outstanding	$ 12,390	$ 12,001	$ 12,390	$ 14,105
Exercisable at end of period	$ 12,390		$ 12,390

STOCKHOLDERS' EQUITY - Warrants

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

Jun. 30, 2018

Jun. 06, 2018

Mar. 31, 2018

Mar. 30, 2018

Dec. 27, 2017

Sep. 30, 2017

Jun. 30, 2017

Mar. 31, 2017

Sep. 30, 2016

Jun. 17, 2016

Mar. 09, 2016

Dec. 08, 2015

Aug. 03, 2015

Nov. 01, 2010

Dec. 31, 2016

Jun. 30, 2018

Aug. 17, 2016

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

Common Stock | Class B Common Stock

Class of Stock [Line Items]

Issuance of shares of voting common stock (in shares)

70,690

Common Stock | Class A Common Stock

Class of Stock [Line Items]

Issuance of shares of voting common stock (in shares)

70,690

6,134,988

TCW Shared Opportunity Fund

Class of Stock [Line Items]

Warrants issued (in shares)

240,000

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

$ 9.13

$ 11

Warrant exercisable period

5 years

President And Chief Executive Officer | Cor Advisors Llc

Class of Stock [Line Items]

Warrants issued (in shares)

960,000

480,000

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

$ 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

$ 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

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

0

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

$ 8.80

$ 8.72

Warrants exercised (in shares)

40,000

130,000

130,000

50,000

130,000

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)

25,051

64,962

STOCKHOLDERS' EQUITY - Preferre

STOCKHOLDERS' EQUITY - Preferred Stock (Details)	Jun. 30, 2018$ / sharesshares
Equity [Abstract]
Preferred stock, authorized (in shares) | shares	50,000,000
Preferred stock, par value (in dollars per share)	$ 0.01
Preferred stock, liquidation preference per share (in dollars per share)	$ 1,000

STOCKHOLDERS' EQUITY - Summary

STOCKHOLDERS' EQUITY - Summary of Preferred Stock (Details) - USD ($) $ in Thousands	Feb. 08, 2016	Jun. 30, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		50,000,000
Carrying Value		$ 269,071	$ 269,071
Series E 7.00% non-cumulative perpetual
Class of Stock [Line Items]
Non cumulative preferred stock, dividend rate	7.00%
Preferred Stock
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		280,250	280,250
Preferred stock, shares outstanding (in shares)		280,250	280,250
Liquidation Preference		$ 280,250	$ 280,250
Carrying Value		$ 269,071	$ 269,071
Preferred Stock | Series C 8.00% non-cumulative perpetual
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		40,250	40,250
Preferred stock, shares outstanding (in shares)		40,250	40,250
Non cumulative preferred stock, dividend rate		8.00%	8.00%
Liquidation Preference		$ 40,250	$ 40,250
Carrying Value		$ 37,943	$ 37,943
Preferred Stock | Series D 7.375% non-cumulative perpetual
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		115,000	115,000
Preferred stock, shares outstanding (in shares)		115,000	115,000
Non cumulative preferred stock, dividend rate		7.375%	7.375%
Liquidation Preference		$ 115,000	$ 115,000
Carrying Value		$ 110,873	$ 110,873
Preferred Stock | Series E 7.00% non-cumulative perpetual
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		125,000	125,000
Preferred stock, shares outstanding (in shares)		125,000	125,000
Non cumulative preferred stock, dividend rate		7.00%	7.00%
Liquidation Preference		$ 125,000	$ 125,000
Carrying Value		$ 120,255	$ 120,255

STOCKHOLDERS' EQUITY - Stock Em

STOCKHOLDERS' EQUITY - Stock Employee Compensation Trust (Details) - Variable Interest Entity, Primary Beneficiary - Common Stock - USD ($) $ / shares in Units, $ in Millions	Dec. 28, 2017	Aug. 03, 2016	Dec. 27, 2017
Class of Stock [Line Items]
Shares sold during the period (in shares)		2,500,000
Price per share sold to trust (in usd per share)		$ 21.45
Proceeds from sale of equity		$ 53.6
Number of shares repurchased (in shares)	2,500,000
Share price of share repurchased (in usd per share)	$ 21
Value of shares repurchased	$ 52.5
Proceeds used for funding benefit plan obligations	$ 2.7
Voting common stock allocated to funding benefit plan obligations (in shares)	126,517
Portion of termination proceeds used to satisfy and terminate promissory note obligations	$ 49.8
Outstanding principal balance including accrued interest			$ 50.9

STOCKHOLDERS' EQUITY - Tangible

STOCKHOLDERS' EQUITY - Tangible Equity Units (Details) $ / shares in Units, $ in Thousands	Aug. 03, 2015shares	May 21, 2014USD ($)$ / sharesshares	Jun. 30, 2018shares
Class of Stock [Line Items]
Minimum settlement rate		4.4456
Market value greater or equal to (in dollars per share) | $ / shares		$ 11.247
Maximum settlement rate		5.1124
Market value less than or equal to (in dollars per share) | $ / shares		$ 9.78
Common Stock | Class A Common Stock
Class of Stock [Line Items]
Issuance of shares of voting common stock (in shares) | shares	70,690		6,134,988
Junior Subordinated Debt | 7.50% Amortizing Note Due May 15, 2017
Class of Stock [Line Items]
Tangible equity units issued during period (in shares) | shares		1,380,000
Tangible equity units issued to underwriter during period (in shares) | shares		180,000
Proceeds from issuance of tangible equity units, net of issuance costs		$ 65,000
Fair value of debt instrument		14,600
Adjustments to additional paid in capital, issuance of tangible equity units		54,400
Tangible equity units issued, issuance costs		4,000
Debt instrument, deferred finance cost		857
Adjustments to additional paid in capital, tangible equity units issued, issuance costs		$ 3,200

STOCKHOLDERS' EQUITY - Changes

STOCKHOLDERS' EQUITY - Changes to Accumulate Other Comprehensive Income by Components (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Gain (loss) on securities available-for-sale
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ (11,542)	$ 5,227	$ (9,702)	$ 5,227	$ (9,042)
Unrealized gain (loss) arising during the period	(10,796)		10,923	(30,478)	13,149
Reclassification adjustment from other comprehensive income	(278)		(1,099)	(5,519)	(4,455)
Tax effect of current period changes	3,246		(13,231)	10,904	(12,761)
Total changes, net of taxes	(7,828)		18,583	(25,093)	17,923
Reclassification of stranded tax effects to retained earnings	0		0	496	0
Balance at end of period	(19,370)	$ (11,542)	8,881	(19,370)	8,881
Unrealized gain arising from the reclassification of securities held-to-maturity to securities available-for-sale
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Unrealized gain (loss) arising during the period	$ 0		$ 21,990	$ 0	$ 21,990

REGULATORY CAPITAL MATTERS (Det

REGULATORY CAPITAL MATTERS (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Banc of California, NA
Total risk-based capital
Amount	$ 1,136,016	$ 1,131,057
Ratio	16.63%	16.56%
Minimum Capital Requirement, Amount	$ 546,541	$ 546,359
Minimum Capital Requirement, Ratio	8.00%	8.00%
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 683,176	$ 682,949
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%
Tier 1 risk-based capital
Amount	$ 1,075,307	$ 1,078,008
Ratio	15.74%	15.78%
Minimum Capital Requirement, Amount	$ 409,906	$ 409,769
Minimum Capital Requirement, Ratio	6.00%	6.00%
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 546,541	$ 546,359
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	8.00%	8.00%
Common equity tier 1 capital
Amount	$ 1,075,307	$ 1,078,008
Ratio	15.74%	15.78%
Minimum Capital Requirement, Amount	$ 307,429	$ 307,327
Minimum Capital Requirement, Ratio	4.50%	4.50%
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 444,065	$ 443,917
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Tier 1 leverage
Amount	$ 1,075,307	$ 1,078,008
Ratio	10.58%	10.67%
Minimum Capital Requirement, Amount	$ 406,411	$ 404,060
Minimum Capital Requirement, Ratio	4.00%	4.00%
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 508,014	$ 505,074
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%
Banc of California, Inc.
Total risk-based capital
Amount	$ 1,007,444	$ 1,002,200
Ratio	14.71%	14.56%
Minimum Capital Requirement, Amount	$ 547,802	$ 550,499
Minimum Capital Requirement, Ratio	8.00%	8.00%
Tier 1 risk-based capital
Amount	$ 946,735	$ 949,151
Ratio	13.83%	13.79%
Minimum Capital Requirement, Amount	$ 410,852	$ 412,874
Minimum Capital Requirement, Ratio	6.00%	6.00%
Common equity tier 1 capital
Amount	$ 677,664	$ 682,539
Ratio	9.90%	9.92%
Minimum Capital Requirement, Amount	$ 308,139	$ 309,656
Minimum Capital Requirement, Ratio	4.50%	4.50%
Tier 1 leverage
Amount	$ 946,735	$ 949,151
Ratio	9.30%	9.39%
Minimum Capital Requirement, Amount	$ 407,033	$ 404,339
Minimum Capital Requirement, Ratio	4.00%	4.00%

VARIABLE INTEREST ENTITIES - Su

VARIABLE INTEREST ENTITIES - Summary of Unconsolidated VIEs (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)investment
Variable Interest Entity [Line Items]
Funded commitments	$ (1,000)	$ 13	$ (1,027)	$ 30,940
Gain (loss) on investments in alternative energy partnerships	(1,808)	(9,761)	(1,774)	(18,443)
Tax credit	1,900	15,700	9,200	24,500
Number of investments with completed funding | investment					1
Number of investments | investment					2
Aggregate funding commitment	100,000		100,000		$ 100,000
Total amount funded	49,900		49,900		62,800
Canceled commitment	50,100		50,100		37,200
Amount unused and returned	1,000		1,000
Funding of equity investment			1,864	10,332
Affordable Housing Fund Investment
Variable Interest Entity [Line Items]
Aggregate funding commitment	29,300		29,300
Total amount funded	15,300		15,300
Funding of equity investment	1,600	2,000	1,600	2,000
Amortization expense	477	604	974	727
Alternative investments unfunded investment commitments	14,000		14,000
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Gain (loss) on investments in alternative energy partnerships	1,800	9,800	1,800	18,400
Tax credit	1,900	15,700	9,200	24,500
Cash	8,022		8,022		16,518
Equipment, net of depreciation	265,752		265,752		246,297
Other assets	3,262		3,262		2,444
Total unconsolidated assets	277,036		277,036		265,259
Total unconsolidated liabilities	6,073		6,073		7,181
Maximum loss exposure	44,806		44,806		98,910
Variable Interest Entity, Not Primary Beneficiary | Affordable Housing Fund Investment
Variable Interest Entity [Line Items]
Tax credit	466	432	941	539
Maximum loss exposure	21,000		21,000		$ 22,000
Variable Interest Entity, Not Primary Beneficiary | Other Assets
Variable Interest Entity [Line Items]
Total unconsolidated assets	$ 44,800	$ 37,600	$ 44,800	$ 37,600

VARIABLE INTEREST ENTITIES -125

VARIABLE INTEREST ENTITIES - Summary Of Consolidated VIEs (Details) - Variable Interest Entity, Primary Beneficiary - Common Stock - USD ($) $ / shares in Units, $ in Millions	Dec. 28, 2017	Aug. 03, 2016	Dec. 27, 2017
Variable Interest Entity [Line Items]
Shares sold during the period (in shares)		2,500,000
Price per share sold to trust (in usd per share)		$ 21.45
Proceeds from sale of equity		$ 53.6
Number of shares repurchased (in shares)	2,500,000
Share price of share repurchased (in usd per share)	$ 21
Value of shares repurchased	$ 52.5
Proceeds used for funding benefit plan obligations	$ 2.7
Voting common stock allocated to funding benefit plan obligations (in shares)	126,517
Portion of termination proceeds used to satisfy and terminate promissory note obligations	$ 49.8
Outstanding principal balance including accrued interest			$ 50.9

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, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Schedule of Earnings Per Share [Line Items]
Income from continuing operations	$ 13,854	$ 15,138	$ 20,928	$ 24,514
Less: income allocated to participating securities	(86)	(12)	0	(175)
Less: participating securities dividends	(203)	(202)	(406)	(405)
Less: preferred stock dividends	(5,113)	(5,113)	(10,226)	(10,226)
Income from continuing operations allocated to common stockholders	8,452	9,811	10,296	13,708
Income from discontinued operations	926	(2,881)	2,410	4,944
Net income available to common stockholders	$ 9,378	$ 6,930	$ 12,706	$ 18,652
Weighted average common shares outstanding (in shares)	50,593,429	50,289,590	50,591,995	50,058,540
Dilutive effects of warrants (in shares)	73,721	383,375	111,781	401,497
Average shares and dilutive common shares (in shares)	50,919,091	50,942,324	50,900,887	50,736,098
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.17	$ 0.20	$ 0.20	$ 0.27
Income from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	0.19	0.14	0.25	0.37
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.16	0.20	0.20	0.27
Income from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	$ 0.18	$ 0.14	$ 0.25	$ 0.37
Stock Units
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	211,380	42,756	153,029	68,664
Stock Option
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	40,561	226,603	44,082	207,397
Class A Common Stock
Schedule of Earnings Per Share [Line Items]
Income from continuing operations	$ 13,709	$ 15,054	$ 20,713	$ 24,396
Less: income allocated to participating securities	(85)	(12)	0	(174)
Less: participating securities dividends	(201)	(201)	(402)	(403)
Less: preferred stock dividends	(5,059)	(5,085)	(10,121)	(10,177)
Income from continuing operations allocated to common stockholders	8,364	9,756	10,190	13,642
Income from discontinued operations	916	(2,865)	2,385	4,920
Net income available to common stockholders	$ 9,280	$ 6,891	$ 12,575	$ 18,562
Weighted average common shares outstanding (in shares)	50,062,442	50,010,943	50,072,385	49,817,624
Dilutive effects of warrants (in shares)	73,721	383,375	111,781	401,497
Average shares and dilutive common shares (in shares)	50,388,104	50,663,677	50,381,277	50,495,182
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.17	$ 0.20	$ 0.20	$ 0.27
Income from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	0.19	0.14	0.25	0.37
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.16	0.20	0.20	0.27
Income from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	$ 0.18	$ 0.14	$ 0.25	$ 0.37
Class A Common Stock | Stock Units
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	211,380	42,756	153,029	68,664
Class A Common Stock | Stock Option
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	40,561	226,603	44,082	207,397
Class B Common Stock
Schedule of Earnings Per Share [Line Items]
Income from continuing operations	$ 145	$ 84	$ 215	$ 118
Less: income allocated to participating securities	(1)	0	0	(1)
Less: participating securities dividends	(2)	(1)	(4)	(2)
Less: preferred stock dividends	(54)	(28)	(105)	(49)
Income from continuing operations allocated to common stockholders	88	55	106	66
Income from discontinued operations	10	(16)	25	24
Net income available to common stockholders	$ 98	$ 39	$ 131	$ 90
Weighted average common shares outstanding (in shares)	530,987	278,647	519,610	240,916
Dilutive effects of warrants (in shares)	0	0	0	0
Average shares and dilutive common shares (in shares)	530,987	278,647	519,610	240,916
Basic earnings per common share
Income from continuing operations (in usd per share)	$ 0.17	$ 0.20	$ 0.20	$ 0.27
Income from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	0.19	0.14	0.25	0.37
Diluted earnings per common share
Income from continuing operations (in usd per share)	0.17	0.20	0.20	0.27
Income from discontinued operations (in usd per share)	0.02	(0.06)	0.05	0.10
Net income (in usd per share)	$ 0.19	$ 0.14	$ 0.25	$ 0.37
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, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock excluded from computation of earnings per share (in shares)	38,836	44,875	222,431	49,946
Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock excluded from computation of earnings per share (in shares)	0	120,000	0	229,923

LOAN COMMITMENTS AND OTHER R128

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES - Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Commitments to extend credit
Other Commitments [Line Items]
Fixed Rate	$ 1,345	$ 1,851
Variable Rate	320,865	335,654
Commitments to extend credit | Banc Home Loan | Discontinued Operations
Other Commitments [Line Items]
Commitments to extend credit	0	0
Unused lines of credit
Other Commitments [Line Items]
Fixed Rate	1,754	19,085
Variable Rate	1,213,416	1,309,170
Letters of credit
Other Commitments [Line Items]
Fixed Rate	1,044	1,050
Variable Rate	$ 9,888	$ 12,976

LOAN COMMITMENTS AND OTHER R129

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES - Additional Information (Detail) - USD ($) $ in Thousands	Aug. 22, 2016	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017
Other Commitments [Line Items]
Commitments to make loans, period, maximum				30 days
Affordable Housing Fund Investment
Other Commitments [Line Items]
Alternative investments unfunded investment commitments				$ 14,000
Small Business Investment Companies
Other Commitments [Line Items]
Alternative investments unfunded investment commitments				10,700
Other Investments
Other Commitments [Line Items]
Alternative investments unfunded investment commitments				501
Los Angeles Football Club (LAFC) Naming Rights, Revenue Rights, And Other Sponsorship Rights
Other Commitments [Line Items]
Maximum commitment		$ 100,000			$ 100,000
Related party term of contract	15 years	15 years
Payments for naming rights			$ 10,000	12,700
Prepaid commitment balance, net of amortization				$ 9,300

RESTRUCTURING - Additional Info

RESTRUCTURING - Additional Information (Details) - USD ($) $ in Thousands	Jun. 28, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Restructuring expense		$ 3,983	$ 379	$ 3,983	$ 8,884	$ 9,100
Percentage of workforce reduction	9.00%
Outstanding unpaid accrued liabilities		$ 2,681	$ 687	$ 2,681	$ 687	$ 202	$ 161	$ 7,002	$ 0

RESTRUCTURING - Restructuring R

RESTRUCTURING - Restructuring Reserve (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$ 161	$ 7,002	$ 202	$ 0	$ 0
Accrual:
Continuing Operations	3,983	82	3,983	5,369
Discontinued Operations	0	297	0	3,515
Total	3,983	379	3,983	8,884	9,100
Payments	(1,463)	(6,694)	(1,504)	(8,197)
Balance at end of period	2,681	687	2,681	687	$ 202
Severance and other employee related costs
Accrual:
Continuing Operations	3,983	82	3,983	5,369
Discontinued Operations	0	297	0	2,620
Total	3,983	379	3,983	7,989
Payments	$ (1,463)	(5,799)	$ (1,504)	(7,302)
Other restructuring expense
Accrual:
Continuing Operations				0
Discontinued Operations				895
Total				895
Payments		$ (895)		$ (895)

REVENUE RECOGNITION - Summary o

REVENUE RECOGNITION - Summary of Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)	$ 1,504	$ 1,677	$ 2,985	$ 3,401
Noninterest Income (out-of-scope of Topic 606)	6,557	4,030	13,658	17,209
Total noninterest income	8,061	5,707	16,643	20,610
Deposit Service Fees
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)	708	726	1,486	1,482
Debit Card Fees
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)	177	486	402	927
Investment Commissions
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)	619	383	942	833
Other
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)	$ 0	$ 82	$ 155	$ 159

RELATED-PARTY TRANSACTIONS - Re

RELATED-PARTY TRANSACTIONS - Related Party Transactions (Details) - Officers and Directors - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Loans to certain officers and directors and their related interests	$ 0	$ 249
Deposits from principal officers, directors, and their related interests	$ 12,400	$ 2,200

RELATED-PARTY TRANSACTIONS - Cu

RELATED-PARTY TRANSACTIONS - Current Related Party Indemnification Costs and SECT Transactions (Details) - USD ($) $ in Thousands	Dec. 28, 2017	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016	Feb. 13, 2017
Common Stock | Variable Interest Entity, Primary Beneficiary
Related Party Transaction [Line Items]
Number of shares repurchased (in shares)	2,500,000
Evercore Trust Company
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares)				2,500,000
Company ownership percentage maximum threshold					5.00%
Special Committee Investigation Indemnification | Director | Halle J. Benett
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 272
Special Committee Investigation Indemnification | Director | Jonah F. Schnel
Related Party Transaction [Line Items]
Expenses from transactions with related parties		272
Special Committee Investigation Indemnification | Director | Robert Sznewajs
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 272
Special Committee Investigation Indemnification | General Counsel
Related Party Transaction [Line Items]
Expenses from transactions with related parties			$ 501	$ 0

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 ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Jun. 11, 2017	Jun. 26, 2015
Related Party Transaction [Line Items]
Committed revolving repurchase facility			$ 40,000,000	$ 35,000,000
Largest aggregate amount of principal outstanding during period	$ 32,500,000	$ 94,700,000
Amount outstanding	0	23,600,000
Proceeds from principal	203,400,000	600,400,000
Proceeds from interest	357,000	$ 1,100,000
Maximum
Related Party Transaction [Line Items]
Committed revolving repurchase facility	$ 100,000,000

RELATED-PARTY TRANSACTIONS - Tr

RELATED-PARTY TRANSACTIONS - Transactions Involving Underwriting Services (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 27, 2016	Mar. 08, 2016	Feb. 08, 2016	Jun. 30, 2018
Related Party Transaction [Line Items]
Preferred stock, liquidation preference per share (in dollars per share)				$ 1,000
Series E 7.00% non-cumulative perpetual
Related Party Transaction [Line Items]
Non cumulative preferred stock, dividend rate			7.00%
Underwritten Public Offering
Related Party Transaction [Line Items]
Depository shares issued (in shares)			5,000,000
Offering price per share (in dollars per share)			$ 25
Underwritten Public Offering | Series E 7.00% non-cumulative perpetual
Related Party Transaction [Line Items]
Depository shares to preferred stock ratio			2.50%
Preferred stock, liquidation preference per share (in dollars per share)			$ 1,000
Underwritten Public Offering | Common Stock
Related Party Transaction [Line Items]
Issuance of stock shares (in shares)		5,577,500
Director | Financial Advisory Services
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 516
Expenses from transactions with related parties, net of related expenses	$ 500
Director | Underwriting Fees
Related Party Transaction [Line Items]
Expenses from transactions with related parties			$ 944
Expenses from transactions with related parties, net of related expenses			$ 849
Director | Underwriting Fees | Common Stock
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 1,000
Expenses from transactions with related parties, net of related expenses		$ 846

RELATED-PARTY TRANSACTIONS - Le

RELATED-PARTY TRANSACTIONS - Legion Affiliates (Details)	Mar. 13, 2017USD ($)director	Jun. 30, 2018	Apr. 26, 2018shares	May 19, 2017shares
Greater Than 5% Shareholder, Legion Partners Asset Management, LLC
Related Party Transaction [Line Items]
Ownership percentage			4.80%	5.60%
Number of additional independent directors | director	2
Reimbursable expense threshold | $	$ 100,000
Greater Than 5% Shareholder, Legion Partners Asset Management, LLC | Voting Common Stock
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares) | shares			2,439,751	2,938,679
Company ownership percentage maximum threshold	10.00%
Director | Bonnie G. Hill
Related Party Transaction [Line Items]
Service term		1 year

RELATED-PARTY TRANSACTIONS - PL

RELATED-PARTY TRANSACTIONS - PL Capital Affiliates (Details) - Greater Than 5% Shareholder, PL Capital Advisors, LLC - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Feb. 10, 2017	Feb. 08, 2017
Related Party Transaction [Line Items]
Ownership percentage		6.90%
Expenses from transactions with related parties	$ 150
Voting Common Stock
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares)		3,427,219
Company ownership percentage maximum threshold			10.00%

RELATED-PARTY TRANSACTIONS -139

RELATED-PARTY TRANSACTIONS - Transactions with Patriot Affiliates (Details) $ / shares in Units, $ in Thousands	Nov. 07, 2014USD ($)shares	Oct. 30, 2014USD ($)$ / sharesshares	Jun. 30, 2018	Feb. 24, 2017shares	Nov. 08, 2014Branch
Banco Popular North America (BPNA)
Related Party Transaction [Line Items]
Number of branches | Branch					20
Greater Than 5% Shareholder, Patriot
Related Party Transaction [Line Items]
Aggregate purchase price | $		$ 20,000
Greater Than 5% Shareholder, Patriot | Equity Support Payment
Related Party Transaction [Line Items]
Expenses from transactions with related parties | $	$ 538
Greater Than 5% Shareholder, Patriot | Reimbursement of Out-of-Pocket Expenses
Related Party Transaction [Line Items]
Expenses from transactions with related parties | $	$ 100
Greater Than 5% Shareholder, Patriot | Voting Common Stock
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares) | shares	3,100,564			2,850,564
Ownership percentage	9.30%
Greater Than 5% Shareholder, Patriot | Voting Common Stock | Voting Common Stock Option One
Related Party Transaction [Line Items]
Common stock issuable (in shares) | shares		1,076,000
Price per share issuable (in dollars per share) | $ / shares		$ 9.78
Greater Than 5% Shareholder, Patriot | Voting Common Stock | Voting Common Stock Option Two
Related Party Transaction [Line Items]
Common stock issuable (in shares) | shares		824,000
Price per share issuable (in dollars per share) | $ / shares		$ 11.55
Director | W. Kirk Wycoff
Related Party Transaction [Line Items]
Service term			1 year

RELATED-PARTY TRANSACTIONS - Fo

RELATED-PARTY TRANSACTIONS - Former Related Party Indemnification Costs and Settlement Agreement (Details) - USD ($) $ in Thousands	Feb. 14, 2018	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Special Committee Investigation Indemnification | Former President And Chief Executive Officer
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 2,000	$ 3,000	$ 573
Special Committee Investigation Indemnification | Former Management Vice Chair
Related Party Transaction [Line Items]
Expenses from transactions with related parties		135	1,400
Special Committee Investigation Indemnification | Former Director
Related Party Transaction [Line Items]
Expenses from transactions with related parties			509
Special Committee Investigation Indemnification | Former Director | Cynthia Abercrombie [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related parties		287
Special Committee Investigation Indemnification | Former Director | Jeffrey Karish [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related parties		$ 272
Special Committee Investigation Indemnification | Former Interim Chief Financial Officer and Chief Strategy Officer and Former Chief Financial Officer
Related Party Transaction [Line Items]
Expenses from transactions with related parties			$ 631	$ 135
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

RELATED-PARTY TRANSACTIONS - LA

RELATED-PARTY TRANSACTIONS - LAFC Financing (Details) - USD ($)	Aug. 22, 2016	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2018	Dec. 31, 2032	Dec. 31, 2031	Dec. 31, 2030	Dec. 31, 2029	Dec. 31, 2028	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Nov. 24, 2017	Jun. 30, 2017	Aug. 08, 2016
Related Party Transaction [Line Items]
Deposits				$ 7,135,794,000																$ 7,292,903,000
Line of Credit | Los Angeles Football Club (LAFC) | Corporate Credit Card
Related Party Transaction [Line Items]
Line of credit facility				100,000
Letters of credit
Related Party Transaction [Line Items]
Letters of Credit outstanding																					$ 100,000
Los Angeles Football Club (LAFC) Naming Rights, Revenue Rights, And Other Sponsorship Rights
Related Party Transaction [Line Items]
Related party term of contract	15 years	15 years
Related party renewal term of contract	10 years
Future annual payments for naming rights, revenue rights and other sponsorship rights			$ 10,000,000	12,700,000
Maximum commitment		$ 100,000,000																				$ 100,000,000
Prepaid commitment balance, net of amortization				9,300,000
Los Angeles Football Club (LAFC) Naming Rights, Revenue Rights, And Other Sponsorship Rights | Scenario, Forecast
Related Party Transaction [Line Items]
Future annual payments for naming rights, revenue rights and other sponsorship rights					$ 6,700,000	$ 6,600,000	$ 6,500,000	$ 6,400,000	$ 6,300,000	$ 6,200,000	$ 6,100,000	$ 6,000,000	$ 5,900,000	$ 5,800,000	$ 5,700,000	$ 5,600,000	$ 5,500,000	$ 5,400,000	$ 5,300,000
Los Angeles Football Club (LAFC) MLS Season
Related Party Transaction [Line Items]
Future annual payments for naming rights, revenue rights and other sponsorship rights				2,700,000
Los Angeles Football Club (LAFC) Advertising And Promotion Expense
Related Party Transaction [Line Items]
Future annual payments for naming rights, revenue rights and other sponsorship rights				3,300,000
Stadco Loan | Immediate Family Member of Chief Executive Officer, Brother | Los Angeles Football Club (LAFC)
Related Party Transaction [Line Items]
Committed line of credit																							$ 40,300,000
Committed line of credit, maximum borrowing																							145,000,000
Outstanding advances				33,600,000																23,300,000
Largest amount of principal outstanding				33,800,000																23,500,000
Unused loan fees				59,000																295,000
Interest income				365,000																325,000
Team Loan | Immediate Family Member of Chief Executive Officer, Brother | Los Angeles Football Club (LAFC)
Related Party Transaction [Line Items]
Committed line of credit																							9,700,000
Committed line of credit, maximum borrowing																							$ 35,000,000
Outstanding advances				8,000,000																5,400,000
Largest amount of principal outstanding				8,000,000																5,500,000
Unused loan fees				19,000																140,000
Interest income				94,000																83,000
Various Entities Affiliated With LAFC | Affiliated Entity
Related Party Transaction [Line Items]
Deposits				$ 22,800,000																$ 33,100,000

RELATED-PARTY TRANSACTIONS -142

RELATED-PARTY TRANSACTIONS - Legal Fees and Other Matters (Details) - Entity Affiliated with Former President and Chief Executive Officer $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended	15 Months Ended
	Feb. 28, 2018letter_of_credit	Mar. 31, 2017USD ($)	Jun. 30, 2018	Jun. 30, 2018USD ($)	Dec. 31, 2017letter_of_credit
Legal Fees and Credit
Related Party Transaction [Line Items]
Legal services period (more than four months)			4 months
Expenses from transactions with related parties | $		$ 330		$ 0
Number of letters of credit outstanding | letter_of_credit					3
Number of letters or credit that were canceled | letter_of_credit	3
Reimbursement of Legal Dispute
Related Party Transaction [Line Items]
Expenses from transactions with related parties | $		$ 100

RELATED-PARTY TRANSACTIONS - Co

RELATED-PARTY TRANSACTIONS - Consulting Agreement for the Bank (Details) - USD ($) $ in Thousands	Nov. 30, 2016	Dec. 31, 2017
Mr. Carlos Salas
Related Party Transaction [Line Items]
Salary		$ 17
Chief Executive Officer Of COR Clearing, LLC | Management and Services Agreement
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 108

RELATED-PARTY TRANSACTIONS -144

RELATED-PARTY TRANSACTIONS - Transactions Involving CS Financial and Jeffrey T. Seabold (Details) - USD ($) $ / shares in Units, $ in Millions	Oct. 31, 2016	Nov. 02, 2015	Oct. 31, 2014	Oct. 31, 2013
Performance Shares
Related Party Transaction [Line Items]
Number of shares (in shares)				92,781
CS Financial
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)				173,791
Par value of stocks issued (in dollars per share)				$ 0.01
Cash paid for acquisition				$ 1.5
Noninterest-bearing note				$ 3.2
CS Financial | Managing Director and Chief Lending Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)				103,663
CS Financial | Brother of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)				16,140
CS Financial | Sister-in-Law of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)				16,140
Number of shares transferred from one related party to another related party (in shares)				103,663
CS Financial | Father of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)				3,228
CS Financial | Certain Employees of Acquired Entity
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)				34,620
CS Financial | Performance Shares | Managing Director and Chief Lending Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)	28,547	28,545	28,545
CS Financial | Performance Shares | Brother of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)	1,083	1,082	1,082
CS Financial | Performance Shares | Sister-in-Law of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)	1,083	1,082	1,082
CS Financial | Performance Shares | Father of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration (in shares)	218	216	216

LITIGATION - Additional Informa

LITIGATION - Additional Information (Details) $ in Millions	Sep. 26, 2017defendant	Sep. 05, 2017USD ($)	Jun. 30, 2018USD ($)
Loss Contingencies [Line Items]
Accrued litigation expense			$ 1.1
Shareholder Derivative Action
Loss Contingencies [Line Items]
Number of defendants | defendant	4
Jeffrey Seabold Matter
Loss Contingencies [Line Items]
Damages sought		$ 5