Banc of California (BANC) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 30, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	BANC
Entity Registrant Name	BANC OF CALIFORNIA, INC.
Entity Central Index Key	1169770
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		35,610,318
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		11

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (USD $)	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Cash and due from banks	$14,004,000	$14,364,000
Interest-bearing deposits	251,398,000	216,835,000
Total cash and cash equivalents	265,402,000	231,199,000
Time deposits in financial institutions	1,900,000	1,900,000
Securities available for sale, at fair value	393,586,000	345,695,000
Loans held for sale, carried at fair value	355,746,000	278,749,000
Loans held for sale, carried at lower of cost or fair value	885,196,000	908,341,000
Loans and leases receivable, net of allowance of $29,345 at March 31, 2015 and $29,480 at December 31, 2014	3,904,370,000	3,919,642,000
Federal Home Loan Bank and other bank stock, at cost	39,844,000	42,241,000
Servicing rights, net ($21,165 and $13,135 measured at fair value at March 31, 2015 and December 31, 2014, respectively)	21,829,000	13,619,000
Servicing rights held for sale, carried at fair value	0	5,947,000
Accrued interest receivable	14,970,000	15,113,000
Other real estate owned, net	498,000	423,000
Premises, equipment, and capital leases, net	78,285,000	78,685,000
Bank-owned life insurance	19,154,000	19,095,000
Goodwill	31,591,000	31,591,000
Affordable housing fund investment	4,577,000	4,737,000
Deferred income tax	14,157,000	16,373,000
Other intangible assets, net	23,708,000	25,252,000
Other assets	42,542,000	32,695,000
Total Assets	6,097,355,000	5,971,297,000
LIABILITIES AND STOCKHOLDERS’ EQUITY
Noninterest-bearing deposits	749,129,000	662,295,000
Interest-bearing deposits	4,112,863,000	4,009,536,000
Total deposits	4,861,992,000	4,671,831,000
Advances from Federal Home Loan Bank	545,000,000	633,000,000
Other borrowings	15,000,000	0
Notes payable, net	92,668,000	93,569,000
Reserve for loss on repurchased loans	8,432,000	8,303,000
Income taxes payable	4,488,000	56,000
Accrued expenses and other liabilities	55,615,000	61,223,000
Total liabilities	5,583,195,000	5,467,982,000
Commitments and contingent liabilities
Additional paid-in capital	424,636,000	422,910,000
Retained earnings	36,880,000	29,589,000
Treasury stock, at cost (1,639,023 shares of common stock at March 31, 2015 and December 31, 2014)	-29,798,000	-29,798,000
Accumulated other comprehensive income, net	2,198,000	373,000
Total stockholders’ equity	514,160,000	503,315,000
Total liabilities and stockholders’ equity	6,097,355,000	5,971,297,000
Series A Preferred Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Preferred stock	31,934,000	31,934,000
Series B Preferred Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Preferred stock	10,000,000	10,000,000
Series C Preferred Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Preferred stock	37,943,000	37,943,000
Class A Common Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Common stock	367,000	358,000
Class B Common Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Common stock	$0	$6,000

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Parenthetical) (USD $)	3 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Loans and leases receivable, allowance	$29,345	$29,480
Preferred Stock:
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Fair value of retained MSRs	$21,165	$13,135
Common Stock:
Treasury stock, shares	1,639,023	1,639,023
Series A Preferred Stock
Preferred Stock:
Preferred stock, liquidation preference per share	$1,000	$1,000
Preferred stock, shares authorized	32,000	32,000
Preferred stock, shares issued	32,000	32,000
Preferred stock, shares outstanding	32,000	32,000
Series B Preferred Stock
Preferred Stock:
Preferred stock, liquidation preference per share	$1,000	$1,000
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	10,000	10,000
Preferred stock, shares outstanding	10,000	10,000
Series C Preferred Stock
Preferred Stock:
Preferred stock, liquidation preference per share	$1,000	$1,000
Non cumulative preferred stock, dividend rate	8.00%	8.00%
Preferred stock, shares authorized	40,250	40,250
Preferred stock, shares issued	40,250	40,250
Preferred stock, shares outstanding	40,250	40,250
Class A Common Stock
Common Stock:
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	446,863,844	446,863,844
Common stock, shares issued	36,702,222	35,829,763
Common stock, shares outstanding	35,063,199	34,190,740
Class B Common Stock
Common Stock:
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	3,136,156	3,136,156
Common stock, shares issued	11	609,195
Common stock, shares outstanding	11	609,195

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Interest and dividend income
Loans, including fees	$58,155	$41,530
Securities	1,927	924
Dividends and other interest-earning assets	698	322
Total interest and dividend income	60,780	42,776
Interest expense
Deposits	6,361	5,735
Federal Home Loan Bank advances	353	100
Notes payable and other interest-bearing liabilities	2,069	1,756
Total interest expense	8,783	7,591
Net interest income	51,997	35,185
Provision for loan and lease losses	0	1,929
Net interest income after provision for loan and lease losses	51,997	33,256
Noninterest income
Customer service fees	910	253
Loan servicing (loss) income	-442	1,253
Income from bank owned life insurance	59	47
Net (loss) gain on sale of securities available for sale	-2	507
Net gain on sale of loans	4,472	2,603
Net revenue on mortgage banking activities	37,933	17,324
Advisory service fees	1,197	1,110
Loan brokerage income	1,141	1,911
Other income	712	270
Total noninterest income	45,980	25,278
Noninterest expense
Salaries and employee benefits	49,771	34,681
Occupancy and equipment	9,771	8,537
Professional fees	3,435	3,865
Data processing	1,835	791
Advertising	912	1,075
Regulatory assessments	1,354	941
Loan servicing and foreclosure expense	319	175
Valuation allowance for other real estate owned	22	0
Net gain on sales of other real estate owned	-17	0
Provision for loan repurchases	845	571
Amortization of intangible assets	1,544	939
All other expense	6,088	6,019
Total noninterest expense	75,879	57,594
Income before income taxes	22,098	940
Income tax expense	9,524	191
Net income	12,574	749
Preferred stock dividends	910	910
Net income (loss) available to common stockholders	11,664	-161
Basic earnings per common share (in usd per share)	$0.30	($0.01)
Diluted earnings per common share (in usd per share)	$0.29	($0.01)
Class A Common Stock
Noninterest expense
Net income	12,560	727
Preferred stock dividends	909	883
Basic earnings per common share (in usd per share)	$0.30	($0.01)
Diluted earnings per common share (in usd per share)	$0.29	($0.01)
Class B Common Stock
Noninterest expense
Net income	14	22
Preferred stock dividends	$1	$27
Basic earnings per common share (in usd per share)	$0.30	($0.01)
Diluted earnings per common share (in usd per share)	$0.30	($0.01)

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$12,574	$749
Unrealized gain on available for sale securities:
Unrealized gain arising during the period	1,928	1,023
Reclassification adjustment for loss (gain) included in net income	1	-507
Total change in unrealized gain on available for sale securities	1,929	516
Unrealized loss on cash flow hedge:
Unrealized loss arising during the period	-104	-217
Total change in unrealized loss on cash flow hedge	-104	-217
Total other comprehensive income	1,825	299
Comprehensive income	$14,399	$1,048

Consolidated_Statements_of_Sha

Consolidated Statements of Shareholder's Equity (USD $)	Total	Class A Common Stock	Class B Common Stock	Preferred Stock	Preferred Stock	Preferred Stock	Common Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
In Thousands, unless otherwise specified				Series A Preferred Stock	Series B Preferred Stock	Series C Preferred Stock	Class A Common Stock	Class B Common Stock
Beginning Balance at Dec. 31, 2013	$324,708			$31,934	$10,000	$37,943	$210	$6	$256,306	$16,820	($27,911)	($600)
Comprehensive income:
Net income	749	727	22							749
Other comprehensive income, net	299											299
Issuance of common stock	1,000						1		999
Capital raise cost	-50								-50
Repurchase of 7,562 shares of common stock	-97										-97
Exercise of stock options	757								757
Stock option compensation expense	99								99
Restricted stock compensation expense	824								824
Issuance of stock awards from treasury stock	0								-282		282
Shares purchased under the Dividend Reinvestment Plan	6								208	-202
Dividends declared	-2,228									-2,228
Preferred stock dividends	-910									-910
Ending Balance at Mar. 31, 2014	325,157			31,934	10,000	37,943	211	6	258,861	14,229	-27,726	-301
Beginning Balance at Dec. 31, 2014	503,315			31,934	10,000	37,943	358	6	422,910	29,589	-29,798	373
Comprehensive income:
Net income	12,574	12,560	14							12,574
Other comprehensive income, net	1,825											1,825
Issuance of common stock	0						9	-6	-3
Stock option compensation expense	123								123
Restricted stock compensation expense	1,528								1,528
Stock appreciation right expense	42								42
Restricted stock surrendered due to employee tax liability	-84								-84
Tax effect of dividends paid on unvested equity awards	68								68
Shares purchased under the Dividend Reinvestment Plan	-127								52	-179
Stock appreciation right dividend equivalents	-173									-173
Dividends declared	-4,021									-4,021
Preferred stock dividends	-910									-910
Ending Balance at Mar. 31, 2015	$514,160			$31,934	$10,000	$37,943	$367	$0	$424,636	$36,880	($29,798)	$2,198

Consolidated_Statements_of_Sha1

Consolidated Statements of Shareholder's Equity (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Statement of Stockholders' Equity [Abstract]
Purchase of treasury stock, shares		7,562
Dividends declared, per common share	$0.12	$0.12

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$12,574	$749
Adjustments to reconcile net income to net cash used in operating activities
Provision for loan and lease losses	0	1,929
Provision for loan repurchases	845	571
Net revenue on mortgage banking activities	-37,933	-17,324
Net gain on sale of loans	-4,472	-2,603
Net amortization (accretion) of securities	224	229
Depreciation on premises and equipment	2,182	1,562
Amortization of intangibles	1,544	939
Amortization of debt issuance cost	245	96
Stock option compensation expense	123	99
Stock award compensation expense	1,528	824
Stock appreciation right expense	42	0
Bank owned life insurance income	-59	-47
Net loss (gain) on sale of securities available for sale	2	-507
Gain on sale of other real estate owned	-17	0
Deferred income tax expense	1,191	0
Loss on sale or disposal of property and equipment	0	119
Increase in valuation allowances on other real estate owned	22	0
Repurchase of mortgage loans	-2,663	0
Originations of loans held for sale from mortgage banking	-1,007,720	-511,451
Originations of other loans held for sale	-257,460	-373,002
Proceeds from sales of and principal collected on loans held for sale from mortgage banking	948,675	548,284
Proceeds from sales of and principal collected on other loans held for sale	282,091	93,407
Change in deferred loan (costs) fees	56	46
Amortization of premiums and discounts on purchased loans	-6,811	-10,436
Change in accrued interest receivable	143	-96
Change in other assets	-1,905	3,187
Change in accrued interest payable and other liabilities	-2,436	-4,502
Net cash used in operating activities	-69,989	-267,927
Cash flows from investing activities:
Proceeds from sales of securities available for sale	174	50,973
Proceeds from maturities and calls of securities available for sale	0	2,754
Proceeds from principal repayments of securities available for sale	20,093	10,741
Purchases of securities available for sale	-65,051	-1,177
Net cash used in acquisitions	0	-1,000
Loan originations and principal collections, net	11,316	-16,352
Purchase of loans	-16,901	-2,093
Redemption of Federal Home Loan Bank stocks	6,810	0
Purchase of Federal Home Loan Bank and other bank stocks	-4,413	-4,201
Proceeds from sale of loans held for investment	39,642	51,813
Net change in time deposits in financial institutions	0	101
Proceeds from sale of other real estate owned	454	0
Proceeds from sale of mortgage servicing rights	3,089	0
Additions to premises and equipment	-1,782	-2,853
Payments of capital lease obligations	-229	-232
Net cash (used in) provided by investing activities	-6,798	88,474
Cash flows from financing activities:
Net increase in deposits	190,161	190,502
Net increase (decrease) in short-term Federal Home Loan Bank advances	-223,000	155,000
Repayment of long-term Federal Home Loan Bank advances	-15,000	-10,000
Proceeds from long-term Federal Home Loan Bank advances	150,000	0
Net increase in other borrowings	15,000	70,000
Capital raise cost	0	-50
Payment of amortizing debt	-1,146	0
Purchase of treasury stock	0	-97
Proceeds from exercise of stock options	0	757
Dividend equivalents paid on stock appreciation rights	-171	0
Dividends paid on preferred stock	-910	-910
Dividends paid on common stock	-3,944	-2,228
Net cash provided by financing activities	110,990	402,974
Net change in cash and cash equivalents	34,203	223,521
Cash and cash equivalents at beginning of period	231,199	110,118
Cash and cash equivalents at end of period	265,402	333,639
Supplemental cash flow information
Interest paid on deposits and borrowed funds	8,754	7,609
Income taxes paid	3,944	0
Income taxes refunds received	17	0
Supplemental disclosure of noncash activities
Transfer from loans to other real estate owned, net	534	150
Transfer of loans receivable to loans held for sale, net of transfer of $0 and $963 from allowance for loan and lease losses for the three months ended March 31, 2015 and 2014, respectively	0	59,137
Transfer of loans held for sale to loans receivable	0	6,984
Equipment acquired under capital leases	$34	$989

Consolidated_Statements_of_Cas1

Consolidated Statements of Cash Flows (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Cash Flows [Abstract]
Transfer of loans receivable to loans held for, transfer from allowance for loan and lease losses	$0	$963

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Principles of Consolidation: The accompanying unaudited consolidated financial statements include the accounts of Banc of California, Inc. (collectively, with its consolidated subsidiaries, the Company, we, us and our) and its wholly owned subsidiaries, Banc of California, National Association (the Bank), The Palisades Group, LLC (the Palisades Group), and PTB Property Holdings, LLC (PTB), as of March 31, 2015 and December 31, 2014 and for the three months ended March 31, 2015 and 2014. Significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, all references to the Company include its wholly owned subsidiaries.
	Nature of Operations: Banc of California, Inc. is a financial holding company under the Bank Holding Company Act of 1956, as amended, headquartered in Orange County, California and incorporated under the laws of Maryland. Banc of California, Inc.'s assets primarily consist of the outstanding stock of the Bank, as well as the outstanding membership interests of the Palisades Group and PTB.
	Banc of California, Inc. is subject to regulation by the Board of Governors of the Federal Reserve System (the Federal Reserve Board or FRB) and the Bank operates under a national bank charter issued by the Office of the Comptroller of the Currency (the OCC), its primary regulator. The Bank is a member of the Federal Home Loan Bank (FHLB) system, and maintains insurance on deposit accounts with the Federal Deposit Insurance Corporation (FDIC). The Bank offers a variety of financial services to meet the banking and financial needs of the communities we serve, with operations conducted through 38 banking offices, serving San Diego, Los Angeles, and Orange counties, California and 61 loan production offices in California, Arizona, Oregon, Virginia, Indiana, Maryland, Colorado, Idaho, and Nevada as of March 31, 2015. The Palisades Group provides financial advisory and asset management services and PTB manages and disposes of other real estate owned properties.
	The accounting and reporting polices of the Company are based upon U.S. generally accepted accounting principles (GAAP) and conform to predominant practices within the banking industry. The Company has not made any significant changes in its critical accounting policies or in its estimates and assumptions from those disclosed in its 2014 Annual Report on Form 10-K, the adoption of new accounting pronouncements and other authoritative guidance that became effective for the Company on or after January 1, 2015. Refer to Accounting Pronouncements below for discussion of accounting pronouncements adopted in 2015.
	Basis of Presentation: The accompanying unaudited interim consolidated financial statements have been prepared pursuant to the rules and regulations for reporting on Form 10-Q. Accordingly, certain disclosures required by 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, 2014 filed by the Company with the Securities and Exchange Commission. The December 31, 2014 balance sheet 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, 2014 filed with the Securities and Exchange Commission, but does not include all of the disclosures required by GAAP.
	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 position and consolidated results of operations 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 months ended March 31, 2015 are not necessarily indicative of the results to be expected for the full year.
	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, reserve for loss on repurchased loans, servicing rights, realization of deferred tax assets, the valuation of goodwill and other intangible assets, mortgage banking derivatives, purchased credit impaired loan discount accretion, 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.
	Income Taxes: Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance is established when necessary to reduce deferred tax assets when it is more-likely-than-not that a portion or all of the net deferred tax assets will not be realized. As of March 31, 2015, the Company had a net deferred tax asset of $14.2 million, net of a $0 valuation allowance and as of December 31, 2014, the Company had a net deferred tax asset of $16.4 million, net of a $0 valuation allowance (See further discussion in Note 11, Income Taxes).
	Allowance for Loan and Lease Losses: During the year ended December 31, 2014, the Company enhanced the methodologies, processes and controls over the allowance for loan and lease losses (ALLL), due to the Company's organic and acquisitive growth and changing profile.
	The following is a synopsis of the enhancements for each component of ALLL:
	•	Expand the look-back period to 28 rolling quarters to capture the full economic cycle.
	•	Utilize net historical losses versus gross historical losses.
	•	Expand the peer group used to determine industry average loss history to include three industry groups; i) all U.S. financial and bank holding companies, ii) all California financial and bank holding companies, iii) the peer group average from the Uniform Bank Performance Report.
	•	Apply the segment specific loss emergence period to each segment's loss.
	•	Determine qualitative reserves at each loan segment level based on a baseline risk weighting adjusted for current risks, trends and business conditions.
	•	Disaggregate certain qualitative factors to be determined on the portfolio segment level.
	Accounting Pronouncements: During the three months ended March 31, 2015, the following pronouncements applicable to the Company were issued or became effective:
	In January 2014, the FASB issued guidance within Accounting Standards Update (ASU) 2014-01, “Accounting for Investments in Qualified Affordable Housing Projects," which amends ASC 323-720 to permit entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. The Company invests in qualified affordable housing projects (affordable housing fund investments) and previously accounted for them under the equity method of accounting. The Company recognized its share of partnership losses in noninterest expense with the tax benefit recognized in the income tax provision. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments are effective for fiscal years, and interim periods within those years, beginning after December 31, 2014 and should be applied retrospectively to all periods presented.
	The Company elected the proportional amortization method retrospectively for all periods presented. This accounting change in the amortization methodology resulted in changes to account for amortization recognized in prior periods, which impacted the balance of tax credit investments and related tax accounts. The investment amortization expense is presented as a component of the income tax expense (benefit). The cumulative effect of the retrospective application of this accounting principle was $274 thousand at December 31, 2014. Net income in the three months ended March 31, 2014 decreased by $8 thousand due to the change in accounting principle.
	The following tables present the effect of the retrospective application of this change in accounting principle on the Company’s Consolidated Statements of Financial Condition, Consolidated Statements of Operations and Consolidated Statement of Cash Flows for the respective periods:
	BANC OF CALIFORNIA, INC.
	CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION
	(Unaudited)
		31-Dec-14
		As Previously Reported			Effect of Change in Accounting Principle			As Adjusted
		(In thousands)
	Assets
	Cash and cash equivalents	$	231,199		$	—		$	231,199
	Time deposits in financial institutions	1,900			—			1,900
	Securities available for sale	345,695			—			345,695
	Loans held for sale	1,187,090			—			1,187,090
	Loans and leases receivable	3,919,642			—			3,919,642
	Deferred income tax	16,445			(72		)	16,373
	Other assets	269,600			(202		)	269,398
	Total assets	$	5,971,571		$	(274	)	$	5,971,297
	Liabilities and stockholders' equity
	Liabilities	$	5,467,982		$	—		$	5,467,982
	Stockholders' equity	503,589			(274		)	503,315
	Total liabilities and stockholders' equity	$	5,971,571		$	(274	)	$	5,971,297
	BANC OF CALIFORNIA, INC.
	CONSOLIDATED STATEMENTS OF OPERATIONS
	(Unaudited)
		Three Months Ended March 31, 2014
		As Previously Reported			Effect of Change in Accounting Principle			As Adjusted
		(In thousands, except per share data)
	Interest and dividend income	$	42,776		$	—		$	42,776
	Interest expense	7,591			—			7,591
	Net interest income	35,185			—			35,185
	Provision for loan and lease losses	1,929			—			1,929
	Noninterest income	25,278			—			25,278
	Noninterest expense	57,768			(174		)	57,594
	Income before income taxes	766			174			940
	Income tax expense	9			182			191
	Net income	757			(8		)	749
	Preferred stock dividends	910			—			910
	Net loss available for common stockholders	$	(153	)	$	(8	)	$	(161	)
	Basic earnings for total common stockholders	$	(0.01	)	$	—		$	(0.01	)
	Diluted earnings (loss) per total common share	$	(0.01	)	$	—		$	(0.01	)
	BANC OF CALIFORNIA, INC.
	CONSOLIDATED STATEMENTS OF CASH FLOWS
	(Unaudited)
		Three Months Ended March 31, 2014
	As Previously Reported			Effect of Change in Accounting Principle			As Adjusted
	(In thousands)
Cash flow from operating activities
Net income	$	757		$	(8	)	$	749
Total adjustment in net income	(268,684		)	8			(268,676		)
Net cash used in operating activities	(267,927		)	—			(267,927		)
Cash flow from investing activities
Net cash provided by investing activities	88,474			—			88,474
Cash flow from financing activities
Net cash provided by financing activities	402,974			—			402,974
Net increase in cash and cash equivalents	223,521			—			223,521
Cash and cash equivalents at beginning of period	110,118						110,118
Cash and cash equivalents at end of period	$	333,639		$	—		$	333,639
In January 2014, the FASB issued ASU No. 2014-04, “Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure.” ASU 2014-04 clarifies that an in substance repossession or foreclosure has occurred, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure. Interim and annual disclosure is required of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. ASU 2014-04 is effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. Adoption of the new guidance did not have a significant impact on the Company’s consolidated financial statements.
In May 2014, the FASB issued ASU No. 2014-09, “Revenue From Contracts With Customers,” which 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 ASU 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. The ASU 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. Entities have the option of using either a full retrospective or a modified retrospective approach for the adoption of the new standard. The ASU becomes effective for Company at the beginning of its 2017 fiscal year; early adoption is not permitted. The Company is in the process of evaluating the impact that adoption of this guidance may have on its consolidated financial statements.
In June 2014, the FASB issued ASU No. 2014-11, “Transfers and Servicing: Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures.” The ASU changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting. In addition, for repurchase financing arrangements, the amendments require separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting for the repurchase agreement. The ASU also requires disclosures for certain transactions comprising (1) a transfer of a financial asset accounted for as a sale and (2) an agreement with the same transferee entered into in contemplation of the initial transfer that results in the transferor retaining substantially all of the exposure to the economic return on the transferred financial asset throughout the term of the transaction. There are additional disclosure requirements for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings. Adoption of the new guidance did not have a significant impact on the Company’s consolidated financial statements.
In June 2014, the FASB issued ASU No. 2014-12, “Compensation—Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period.” The ASU requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply existing guidance in Topic 718 as it relates to awards with performance conditions that affect vesting to account for such awards. As such, the performance target should not be reflected in estimating the grant-date fair value of the award. The Company is in the process of evaluating the impact that adoption of this guidance may have on its consolidated financial statements.
In August 2014, the FASB issued ASU 2014-14, “Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40), Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure.” Under ASU 2014-14, a mortgage loan should be derecognized and a separate receivable based on the principal and interest expected to be recovered from the governmental guarantor should be recognized upon foreclosure when all of the following conditions exist: a government guarantee exists that is not separable from the loan prior to the foreclosure; as of the date of the foreclosure the creditor has the intent to convey the real estate to the governmental agency that issued the guarantee, to make a claim on the guarantee and the creditor has the ability to recover amounts due from the governmental entity as a result of the claim; and, as of the time of the foreclosure, the claim amount that is based on the fair value of the real estate is fixed. ASU 2014-14 is effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014. Adoption of the new guidance did not have a significant impact on the Company’s consolidated financial statements.

BUSINESS_COMBINATIONS

BUSINESS COMBINATIONS	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS
	The Company completed the following acquisitions between January 1, 2014 and March 31, 2015 and used the acquisition method of accounting. Accordingly, the operating results of the acquired entities have been included in the consolidated financial statements from their respective dates of acquisition.
	The following table presents a summary of acquired assets and assumed liabilities along with a summary of the acquisition consideration as of the dates of acquisition:
		Acquisition and Date Acquired
		Banco Popular Branches			Renovation
					Ready
		8-Nov-14			January 31,
					2014
		(In thousands)
	Assets acquired:
	Cash and due from banks	$	5,532		$	—
	Loans and leases receivable	1,072,449			—
	Premises, equipment, and capital leases	9,002			—
	Goodwill	—			2,239
	Other intangible assets	15,777			761
	Other assets	2,301			—
	Total assets acquired	$	1,105,061		$	3,000
	Liabilities assumed:
	Deposits	$	1,076,614		$	—
	Other liabilities	506			1,000
	Total liabilities assumed	1,077,120			1,000
	Total consideration paid	$	27,941		$	2,000
	Summary of consideration
	Cash paid	$	27,941		$	1,000
	Common stock issued	—			1,000
	Earn-out liabilities	—			1,000
	Banco Popular’s California Branch Network Acquisition
	Effective November 8, 2014, the Bank acquired 20 full-service branches from Banco Popular North America (BPNA) in the Southern California banking market (the BPNA Branch Acquisition). The purchase price, net of deposit premiums received of $3.9 million, was $24.0 million. The transaction added $1.07 billion in loans and $1.08 billion in deposits to the Bank.
	The following table summarizes the total consideration transferred as part of the BPNA Branch Acquisition as well as the fair value adjustments to the net assets acquired as of the acquisition date:
		8-Nov-14
		(In thousands)
	Total Consideration				$	27,941
	Net assets pre-acquisition				24,027
	Fair value adjustments
	Loans receivable	$	(12,165	)
	Core deposit intangibles	15,777
	Certificates of deposit purchase premium	(916		)
	Premises and equipment	1,218
	Total fair value adjustments				3,914
	Fair value of net assets acquired				27,941
	Net fair value in excess of consideration				$	—
	The fair value of loans acquired from BPNA was estimated by utilizing a methodology wherein similar loans were aggregated into pools. Cash flows for each pool were determined by estimating future credit losses and the rate of prepayments. Projected monthly cash flows were then discounted to present value based on a market rate for similar loans. There was no carryover of BPNA's allowance for loan losses associated with the acquired loans as the loans were initially recorded at fair value.
	Core deposit intangible asset of $15.8 million recognized as part of the BPNA Branch Acquisition was valued using a net cost savings method and was calculated as the present value of the estimated net cost savings attributable to the core deposit base over the expected remaining life of the deposits. The cost savings derived from the core deposit balance was calculated as the difference between the prevailing alternative cost of funds and the estimated actual cost of the core deposits. The core deposit intangible is being amortized over its estimated useful life of 10 years using the sum of years-digits amortization methodology.
	The fair value of savings and transaction deposit accounts acquired from BPNA was assumed to approximate the carrying value as these accounts have no stated maturity and are payable on demand. Certificates of deposit were valued by projecting the expected cash flows based on the remaining contractual terms of the certificates of deposit. These cash flows were discounted based on market rates for certificates of deposit with corresponding remaining maturities.
	Direct costs related to the BPNA Branch Acquisition were expensed as incurred and amounted to $4.3 million for the year ended December 31, 2014. These included technology costs related to system conversion and professional fees.
	Certain valuations related to acquired loans receivable, premises and equipment, and other intangible assets and assumed deposits are still under review by management and considered preliminary and could differ significantly when management's review is finalized.
	RenovationReady® Acquisition
	Effective January 31, 2014, the Company acquired certain assets, including service contracts and intellectual property, of RenovationReady, a provider of specialized loan services to financial institutions and mortgage bankers that originate agency eligible residential renovation and construction loan products.
	The RenovationReady acquisition was accounted for under GAAP guidance for business combinations. The purchased identifiable intangible assets and assumed liabilities were recorded at their estimated fair values as of January 31, 2014. The Company recorded $2.2 million of goodwill and $761 thousand of other intangible assets. The other intangible assets are related to a customer relationship intangible.
	Pro Forma Information
	While the BPNA Branch Acquisition is considered a purchase of a business for accounting purposes, pro forma income statement information is not presented because the BPNA Branch Acquisition does not represent the acquisition of a business which has continuity both before and after the acquisition. Pro formation income statement information for RenovationReady is not presented because it is immaterial.

FAIR_VALUES_OF_FINANCIAL_INSTR

FAIR VALUES OF FINANCIAL INSTRUMENTS	3 Months Ended
	Mar. 31, 2015
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 market, if available (Level 1). If quoted market prices are not available, the Company employs an independent pricing service that utilizes matrix pricing 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 SBA loan pool securities, U.S. GSE and agency securities, Private label residential MBS, and Agency MBS. When a market is illiquid or there is a lack of transparency around the inputs to valuation, 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 March 31, 2015 and December 31, 2014.
	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 markets are currently offering for portfolios with similar characteristics. Therefore, loans held for sale subjected to recurring fair value adjustments are classified as Level 2. The fair value includes the servicing value of the loans as well as any accrued interest.
	Derivative Assets and Liabilities: The Company’s derivative assets and liabilities are carried at fair value as required by GAAP and are accounted for as freestanding derivatives. The Company has entered into pay-fixed, receive-variable interest rate swap contracts with institutional counterparties to hedge against variability in cash flow attributable to interest rate risk caused by changes in the LIBOR benchmark interest rate on the Company’s ongoing LIBOR-based variable rate deposits. The Company is accounting for the swaps as cash flow hedges under ASC 815. The other derivative assets are interest rate lock commitments (IRLCs) with prospective residential mortgage borrowers. These commitments are carried at fair value based on the fair value of the underlying mortgage loans which are based on observable market data. The Company adjusts the outstanding IRLCs with prospective borrowers based on an expectation that it will be exercised and the loan will be funded. Changes in fair value are recorded in earnings as a component of net revenue on mortgage banking activities. These commitments are classified as Level 2 in the fair value disclosures, as the valuations are based on market observable inputs. Additional derivative assets and liabilities, typically mortgage-backed to-be-announced (TBA) securities, are used to hedge fair value changes, driven by changes in interest rates, on the Company’s mortgage assets. The Company hedges the period from the interest rate lock (assuming a fall-out factor) to the date of the loan sale. The estimated fair value is based on current market prices for similar instruments. Given the meaningful level of secondary market activity for derivative contracts, active pricing is available for similar assets and accordingly, the Company classifies its derivative assets and liabilities as Level 2.
	Mortgage Servicing Rights: The Company retains servicing on some of its mortgage loans sold and elected the fair value option for valuation of these mortgage servicing rights (MSRs). The value is based on 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 March 31, 2015 and December 31, 2014, $0 and $5.9 million of the mortgage servicing rights were valued based on a market bid that settled subsequent to each period end, which is included as Level 3, respectively.
	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
		Carrying			Quoted Prices			Significant		Significant
		Value			in Active Markets			Other		Unobservable
					for Identical			Observable		Inputs
					Assets			Inputs		(Level 3)
					(Level 1)			(Level 2)
		(In thousands)
	31-Mar-15
	Assets
	Available for sale securities:
	SBA loan pools securities	$	1,635		$	—		$	1,635	$	—
	U.S. government-sponsored entities and agency securities	2,001			—			2,001		—
	Private label residential mortgage-backed securities	2,615			—			2,615		—
	Agency mortgage-backed securities	387,335			—			387,335		—
	Loans held for sale	355,746			—			355,746		—
	Derivative assets (1)	13,555			—			13,555		—
	Mortgage servicing rights (2)	21,165			—			—		21,165
	Liabilities
	Derivative liabilities (3)	4,552			—			4,552		—
	31-Dec-14
	Assets
	Available for sale securities:
	SBA loan pools securities	$	1,715		$	—		$	1,715	$	—
	U.S. government-sponsored entities and agency securities	1,982			—			1,982		—
	Private label residential mortgage-backed securities	3,168			—			3,168		—
	Agency mortgage-backed securities	338,830			—			338,830		—
	Loans held for sale	278,749			—			278,749		—
	Derivative assets (1)	6,379			—			6,379		—
	Mortgage servicing rights (2)	19,082			—			—		19,082
	Liabilities
	Derivative liabilities (3)	3,235			—			3,235		—
	-1	Included in Other Assets on the Consolidated Statements of Financial Condition
	-2	Included in Servicing Rights, Net and Servicing Rights Held For Sale on the Consolidated Statements of Financial Condition
	-3	Included in Accrued Expenses and Other Liabilities on 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) for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Mortgage servicing rights
	Balance at beginning of period	$	19,082		$	13,535
	Transfers out of Level 3 (1)	—			(9,185		)
	Total gains or losses (realized/unrealized):
	Included in earnings—realized	—			—
	Included in earnings—fair value adjustment	(528		)	315
	Included in other comprehensive income	—			—
	Amortization of premium (discount)	—			—
	Additions	10,192			4,326
	Sales and settlements	(7,581		)	(584		)
	Balance at end of period	$	21,165		$	8,407
	-1	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 cause the transfer.
The following table presents quantitative information about Level 3 fair value measurements on a recurring basis as of the dates indicated:
	Fair Value			Valuation Technique(s)		Unobservable Input(s)	Range (Weighted Average)
	(In thousands)
31-Mar-15
Mortgage servicing rights	$	21,165		Discounted cash flow		Discount rate	9.00% to 13.20% (9.84%)
						Prepayment rate	5.15% to 34.28% (12.98%)
31-Dec-14
Mortgage servicing rights	$	13,135		Discounted cash flow		Discount rate	9.00% to 19.50% (10.09%)
						Prepayment rate	4.59% to 31.02% (13.22%)
31-Mar-14
Mortgage servicing rights	$	8,407		Discounted cash flow		Discount rate	10.00% to 17.89% (10.81%)
						Prepayment rate	3.92% to 34.54% (13.17%)
The significant unobservable inputs used in the fair value measurement of the Company’s servicing rights include the discount rate and prepayment rate. 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.
Assets and Liabilities Measured on a Non-Recurring Basis
Impaired Loans and Leases: The fair value of impaired loans and leases with specific allocations of the allowance for loan and lease losses based on collateral values is 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 significant and result in a Level 3 classification of the inputs for determining fair value.
Loans Held for Sale, carried at lower of cost or fair value: The Company records non-conforming jumbo mortgage loans held for sale at the lower of cost or fair value. The Company obtains fair values from a third party independent valuation service provider. Loans held for sale are accounted for at the lower of cost or market and are considered to be recognized at fair value when they are recorded at below cost and are classified as Level 2.
SBA Servicing Assets: SBA servicing assets represents the value associated with servicing SBA loans that have been sold. The fair value for SBA servicing assets is determined through discounted cash flow analysis and utilizes discount rates and prepayment speed assumptions 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. SBA servicing assets are accounted for at the lower of cost or market and considered to be recognized at fair value when they are recorded at below cost and are classified as Level 3.
Other Real Estate Owned Assets: Other real estate owned assets (OREO) are recorded at the fair value less estimated costs to sell at the time of foreclosure. 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 of the inputs for determining fair value. Only OREO with a valuation allowance are considered to be carried at fair value. The Company recorded valuation allowance expense for OREO of $22 thousand and $0 for the three months ended March 31, 2015 and 2014, respectively.
Alternative Investments (Affordable Housing Fund Investment & SBIC): The Company generally accounts for its percentage ownership of alternative investment funds at cost, subject to impairment testing. These are non-public investments that cannot be redeemed since the Company’s investment is distributed as the underlying investments are liquidated, which generally takes 10 years. There are currently no plans to sell any of these investments prior to their liquidation. The alternative investments carried at cost are considered to be measured at fair value on a non-recurring basis when there is impairment. The Company had unfunded commitments of $487 thousand and $7.2 million for Affordable House Fund Investment and SBIC at March 31, 2015, respectively.
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
	Carrying			Quoted Prices			Significant		Significant
	Value			in Active Markets			Other		Unobservable
				for Identical			Observable		Inputs
				Assets			Inputs		(Level 3)
				(Level 1)			(Level 2)
	(In thousands)
31-Mar-15
Assets
Impaired loans:
Single family residential mortgage	$	5,065		$	—		$	—	$	5,065
Commercial and industrial	4,134			—			—		4,134
Other real estate owned:
Single family residential	498			—			—		498
31-Dec-14
Assets
Impaired loans:
Single family residential mortgage	$	6,206		$	—		$	—	$	6,206
Commercial and industrial	4,313			—			—		4,313
SBA servicing rights	484			—			—		484
Other real estate owned:
Single family residential	423			—			—		423
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
	March 31,
	2015			2014
	(In thousands)
Impaired loans:
Single family residential mortgage	$	—		$	(151	)
Other consumer	—			(2		)
Other real estate owned:
Single family residential	(5		)	—
The following table presents the carrying amounts and estimated fair values of financial assets and liabilities as of the dates indicated:
	Carrying			Fair Value Measurement Level
	Amount			Level 1			Level 2		Level 3		Total
	(In thousands)
31-Mar-15
Financial assets
Cash and cash equivalents	$	265,402		$	265,402		$	—	$	—	$	265,402
Time deposits in financial institutions	1,900			1,900			—		—		1,900
Securities available for sale	393,586			—			393,586		—		393,586
FHLB and other bank stock	39,844			—			39,844		—		39,844
Loans held for sale	1,240,942			—			1,249,370		—		1,249,370
Loans and leases receivable, net of allowance	3,904,370			—			—		4,008,008		4,008,008
Accrued interest receivable	14,970			14,970			—		—		14,970
Derivative assets	13,555			—			13,555		—		13,555
Financial liabilities
Deposits	4,861,992			—			—		4,719,344		4,719,344
Advances from Federal Home Loan Bank	545,000			—			545,195		—		545,195
Other borrowings	15,000			—			15,000		—		15,000
Notes payable	92,668			86,750			12,102		—		98,852
Derivative liabilities	4,552			—			4,552		—		4,552
Accrued interest payable	2,016			2,016			—		—		2,016
31-Dec-14
Financial assets
Cash and cash equivalents	$	231,199		$	231,199		$	—	$	—	$	231,199
Time deposits in financial institutions	1,900			1,900			—		—		1,900
Securities available for sale	345,695			—			345,695		—		345,695
FHLB and other bank stock	42,241			—			42,241		—		42,241
Loans held for sale	1,187,090			—			1,195,834		—		1,195,834
Loans and leases receivable, net of allowance	3,919,642			—			—		4,045,465		4,045,465
Accrued interest receivable	15,113			15,113			—		—		15,113
Derivative assets	6,379			—			6,379		—		6,379
Financial liabilities
Deposits	4,671,831			—			—		4,575,264		4,575,264
Advances from Federal Home Loan Bank	633,000			—			633,083		—		633,083
Notes payable	93,569			87,428			13,360		—		100,788
Derivative liabilities	3,235			—			3,235		—		3,235
Accrued interest payable	2,044			2,044			—		—		2,044
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).
FHLB and other bank stock: FHLB and other bank stock is recorded at cost. Ownership of FHLB stock is restricted to member banks, and purchases and sales of these securities are at par value with the issuer.
Loans and leases receivable, net of allowance for loan and lease losses: The fair value of loans and leases receivable is estimated based on the discounted cash flow approach. The discount rate was derived from the associated yield curve plus spreads and reflects the offering rates offered by the Bank for loans with similar financial characteristics. Yield curves are constructed by product and payment types. These rates could be different from what other financial institutions could offer for these loans. No adjustments have been made for changes in credit within the loan portfolio. Additionally, the fair value of our loans may differ significantly from the values that would have been used had a ready market existed for such loans and may differ materially from the values that we may ultimately realize (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 the discounted cash flows approach. The discount rate was derived from the current market rates for borrowings with similar remaining maturities (Level 2).
Accrued interest payable: The carrying amount of accrued interest payable approximates its fair value (Level 1).

SECURITIES_AVAILABLE_FOR_SALE

SECURITIES AVAILABLE FOR SALE	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
SECURITIES AVAILABLE FOR SALE	SECURITIES AVAILABLE FOR SALE
	The following table presents the amortized cost and fair value of the available for sale investment securities portfolio and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of the dates indicated:
		Amortized			Gross			Gross			Fair
		Cost			Unrealized			Unrealized			Value
					Gains			Losses
		(In thousands)
	31-Mar-15
	Available for sale
	SBA loan pool securities	$	1,600		$	35		$	—		$	1,635
	U.S. government-sponsored entities and agency securities	1,943			58			—			2,001
	Private label residential mortgage-backed securities	2,607			11			(3		)	2,615
	Agency mortgage-backed securities	383,287			4,224			(176		)	387,335
	Total securities available for sale	$	389,437		$	4,328		$	(179	)	$	393,586
	31-Dec-14
	Available for sale
	SBA loan pool securities	$	1,697		$	18		$	—		$	1,715
	U.S. government-sponsored entities and agency securities	1,940			42			—			1,982
	Private label residential mortgage-backed securities	3,169			12			(13		)	3,168
	Agency mortgage-backed securities	338,072			1,363			(605		)	338,830
	Total securities available for sale	$	344,878		$	1,435		$	(618	)	$	345,695
	The following table presents amortized cost and fair value of the available for sale investment securities portfolio by expected maturity. In the case of mortgage-backed securities and SBA loan pool securities, expected maturities may differ from contractual maturities because borrowers generally have the right to call or prepay obligations with or without call or prepayment penalties. For that reason, mortgage-backed securities and SBA loan pool securities are not included in the maturity categories.
		31-Mar-15
		Amortized			Fair
		Cost			Value
		(In thousands)
	Maturity:
	Within one year	$	—		$	—
	One to five years	1,943			2,001
	Five to ten years	—			—
	Greater than ten years	—			—
	SBA loan pool, private label residential mortgage-backed and agency mortgage-backed securities	387,494			391,585
	Total	$	389,437		$	393,586
	At March 31, 2015 and December 31, 2014, 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 stockholders’ equity.
	The following table presents proceeds from sales and calls of securities and the associated gross gains and losses realized through earnings upon the sale of available for sale securities for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Gross realized gains on sales of securities available for sale	$	—		$	545
	Gross realized losses on sales of securities available for sale	(2		)	(38		)
	Net realized gains (losses) on sales of securities available for sale	$	(2	)	$	507
	Proceeds from sales of securities available for sale	$	174		$	50,973
	Tax benefit on sales of securities available for sale	$	(1	)	$	—
	Securities available for sale with carrying values of $32.2 million and $27.1 million as of March 31, 2015 and December 31, 2014, respectively, were pledged to secure FHLB advances, public deposits and for other purposes as required or permitted by law.
	The following table summarizes the investment securities with unrealized losses by security type and length of time in a continuous unrealized loss position as of the dates indicated:
		Less Than 12 Months						12 Months or Longer						Total
		Fair			Gross			Fair			Gross			Fair		Gross
		Value			Unrealized			Value			Unrealized			Value		Unrealized
					Losses						Losses					Losses
		(In thousands)
	31-Mar-15
	Available for sale
	Private label residential mortgage-backed securities	$	176		$	(1	)	$	850		$	(2	)	$	1,026	$	(3	)
	Agency mortgage-backed securities	33,682			(111		)	11,336			(65		)	45,018		(176		)
	Total securities available for sale	$	33,858		$	(112	)	$	12,186		$	(67	)	$	46,044	$	(179	)
	31-Dec-14
	Available for sale
	Private label residential mortgage-backed securities	$	372		$	(9	)	$	1,355		$	(4	)	$	1,727	$	(13	)
	Agency mortgage-backed securities	68,200			(332		)	22,212			(273		)	90,412		(605		)
	Total securities available for sale	$	68,572		$	(341	)	$	23,567		$	(277	)	$	92,139	$	(618	)
	The Company did not record other-than-temporary impairment (OTTI) for securities available for sale for the three months ended March 31, 2015 or 2014.
	At March 31, 2015, the Company’s securities available for sale portfolio consisted of 96 securities, 33 of which were in an unrealized loss position. The unrealized losses are related to an overall increase in interest rates and a decrease in prepayment speeds of the agency mortgage-backed securities.
	The Company monitors to ensure it has adequate credit support and as of March 31, 2015, the Company did not have the intent to sell these securities and it is not likely that it will be required to sell the securities before their anticipated recoveries. Of the Company’s $393.6 million securities portfolio, $392.5 million were rated AAA, AA or A and $1.0 million were rated BBB based on the most recent credit rating from the rating agencies as of March 31, 2015. The Company considers the lowest credit rating for identification of potential OTTI.

LOANS_AND_LEASES_AND_ALLOWANCE

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES	LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES
	The following table presents the balances in the Company’s loans and leases portfolio as of the dates indicated:
		Non-Traditional				Traditional				Total NTM				Purchased				Total Loans
		Mortgages				Loans				and				Credit Impaired				and Leases
		(NTM)								Traditional								Receivable
										Loans
		($ in thousands)
	31-Mar-15
	Commercial:
	Commercial and industrial	$	—			$	488,150			$	488,150			$	1,079			$	489,229
	Commercial real estate	—				965,302				965,302				10,432				975,734
	Multi-family	—				940,053				940,053				—				940,053
	SBA	—				45,118				45,118				3,136				48,254
	Construction	—				38,081				38,081				—				38,081
	Lease financing	—				102,012				102,012				—				102,012
	Consumer:
	Single family residential mortgage	229,006				593,019				822,025				227,151				1,049,176
	Green Loans (HELOC) - first liens	119,958				—				119,958				—				119,958
	Green Loans (HELOC) - second liens	4,748				—				4,748				—				4,748
	Other consumer	113				166,357				166,470				—				166,470
	Total gross loans and leases	$	353,825			$	3,338,092			$	3,691,917			$	241,798			$	3,933,715
	Percentage to total gross loans and leases	9		%		84.9		%		93.9		%		6.1		%		100		%
	Allowance for loan and lease losses																	(29,345		)
	Loans and leases receivable, net																	$	3,904,370
	31-Dec-14
	Commercial:
	Commercial and industrial	$	—			$	489,766			$	489,766			$	1,134			$	490,900
	Commercial real estate	—				988,330				988,330				11,527				999,857
	Multi-family	—				955,683				955,683				—				955,683
	SBA	—				32,998				32,998				3,157				36,155
	Construction	—				42,198				42,198				—				42,198
	Lease financing	—				85,749				85,749				—				85,749
	Consumer:
	Single family residential mortgage	222,306				595,100				817,406				231,079				1,048,485
	Green Loans (HELOC) - first liens	123,177				—				123,177				—				123,177
	Green Loans (HELOC) - second liens	4,979				—				4,979				—				4,979
	Other consumer	113				161,826				161,939				—				161,939
	Total gross loans and leases	$	350,575			$	3,351,650			$	3,702,225			$	246,897			$	3,949,122
	Percentage to total gross loans and leases	8.9		%		84.8		%		93.7		%		6.3		%		100		%
	Allowance for loan and lease losses																	(29,480		)
	Loans and leases receivable, net																	$	3,919,642
	Non Traditional Mortgage Loans
	The Company’s non-traditional mortgage (NTM) portfolio is comprised of three interest only products: Green Account Loans (Green Loans), fixed or adjustable hybrid interest only rate mortgage (Interest Only) loans and a small number of additional loans with the potential for negative amortization. As of March 31, 2015 and December 31, 2014, the NTM loans totaled $353.8 million, or 9.0 percent of the total gross loan portfolio, and $350.6 million, or 8.9 percent of the total gross loan portfolio, respectively. The total NTM portfolio increased by $3.3 million, or 0.9 percent, during the three months ended March 31, 2015.
	The following table presents the composition of the NTM portfolio as of the dates indicated:
		31-Mar-15										31-Dec-14
		Count			Amount				Percent			Count			Amount				Percent
		($ in thousands)
	Green Loans (HELOC) - first liens	147			$	119,958			33.9	%		148			$	123,177			35.1	%
	Interest-only - first liens	204			216,765				61.2	%		207			209,207				59.7	%
	Negative amortization	31			12,241				3.5	%		32			13,099				3.7	%
	Total NTM - first liens	382			348,964				98.6	%		387			345,483				98.5	%
	Green Loans (HELOC) - second liens	19			4,748				1.3	%		19			4,979				1.4	%
	Interest-only - second liens	1			113				0.1	%		1			113				0.1	%
	Total NTM - second liens	20			4,861				1.4	%		20			5,092				1.5	%
	Total NTM loans	402			$	353,825			100	%		407			$	350,575			100	%
	Total gross loan portfolio				$	3,933,715									$	3,949,122
	% of NTM to total gross loan portfolio				9		%								8.9		%
	Green Loans
	Green Loans are single family residential first and second mortgage lines of credit with a linked checking account that allows all types of deposits and withdrawals to be performed. The loans are generally interest only with a 15 year-balloon payment due at maturity. At March 31, 2015 and December 31, 2014, Green Loans totaled $124.7 million and $128.2 million, respectively. At March 31, 2015 and December 31, 2014, $10.7 million and $12.5 million, respectively, of the Company’s Green Loans were non-performing. 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 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 single family residential first mortgage loans with payment features that allow interest only payments in initial periods before converting to a fully amortizing loan. As of March 31, 2015 and December 31, 2014, interest only loans totaled $216.9 million and $209.3 million, respectively. At March 31, 2015 and December 31, 2014, $3.0 million and $2.0 million of the interest only loans were non-performing, respectively.
	Loans with the Potential for Negative Amortization
	Negative amortization loans totaled $12.2 million and $13.1 million at March 31, 2015 and December 31, 2014, respectively. The Company discontinued origination of negative amortization loans in 2007. At March 31, 2015 and December 31, 2014, $0 and $0 of the loans that had the potential for negative amortization were non-performing, respectively. These 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 loan-to-value ratios. While Green Loans have the potential for negative amortization, they are excluded from the loans with the potential for negative amortization discussed in this paragraph.
	Risk Management of Non-Traditional Mortgages
The Company has determined that the most significant performance indicators for NTMs are loan-to-value (LTV) and FICO scores. Accordingly, the Company manages credit risk in the NTM portfolio through semi-annual review of the loan portfolio that includes refreshing FICO scores on the Green Loans and home equity lines of credit, as needed in conjunction with portfolio management, and ordering third party automated valuation models. The loan review is designed to provide a method of identifying borrowers who may be experiencing financial difficulty before they actually fail to make a loan payment. Upon receipt of the updated FICO scores, an exception report is run to identify loans with a decrease in FICO of 10 percent or more and/or a resulting FICO of 620 or less. The loans are then further analyzed to determine if the risk rating should be downgraded which will increase the reserves the Company will establish for potential losses. A report of the semi-annual loan review is published and regularly monitored.
As these loans are revolving lines of credit, the Company, based on the loan agreement and loan covenants of the particular loan, as well as applicable rules and regulations, could suspend the borrowing privileges or reduce the credit limit at any time the Company reasonably believes that the borrower will be unable to fulfill their repayment obligations under the agreement or certain other conditions are met. In many cases, the decrease in FICO is the first indication that the borrower may have difficulty in making their future payment obligations.
As a result, the Company proactively manages the portfolio by performing detailed analysis on its portfolio with emphasis on the NTM portfolio. The Company’s Internal Asset Review Committee (IARC) conducts meetings on at least a quarterly basis to review the loans classified as special mention, substandard, or doubtful and determines whether a suspension or reduction in credit limit is warranted. If the line has been suspended and the borrower would like to have their credit privileges reinstated, they would need to provide updated financials showing their ability to meet their payment obligations.
On the interest only loans, the Company projects future payment changes to determine if there will be a material increase in the required payment and then monitors the loans for possible delinquency. The individual loans are monitored for possible downgrading of risk rating, and trends within the portfolio are identified that could affect other interest only loans scheduled for payment changes in the near future.
NTM Performance Indicators
The following table presents the Company’s NTM Green Loans first lien portfolio at March 31, 2015 and December 31, 2014 by FICO scores:
	31-Mar-15										31-Dec-14										Change
	Count			Amount				Percent			Count			Amount				Percent			Count			Amount				Percent
	($ in thousands)
FICO Score
800+	28			$	19,448			16.2	%		28			$	20,248			16.4	%		—			$	(800	)		(0.2	)%
700-799	72			50,769				42.3	%		72			52,532				42.7	%		—			(1,763		)		(0.4	)%
600-699	28			30,431				25.4	%		29			31,053				25.2	%		(1	)		(622		)		0.2	%
<600	8			11,873				9.9	%		8			11,893				9.7	%		—			(20		)		0.2	%
No FICO	11			7,437				6.2	%		11			7,451				6	%		—			(14		)		0.2	%
Totals	147			$	119,958			100	%		148			$	123,177			100	%		(1	)		$	(3,219	)		—	%
The Company updates FICO scores on a semi-annual basis, typically in the second and fourth quarters or as needed in conjunction with proactive portfolio management.
Loan to Value
The table below represents the Company’s single family residential NTM first lien portfolio by loan-to-value (LTV) as of the dates indicated:
	Green										Interest Only										Negative Amortization										Total
	Count			Amount				Percent			Count			Amount				Percent			Count			Amount				Percent			Count		Amount			Percent
	($ in thousands)
LTV’s (1)
31-Mar-15
< 61	77			$	56,136			46.7	%		60			$	99,152			45.8	%		15			$	5,960			48.7	%		152		$	161,248		46.2	%
61-80	45			46,129				38.5	%		52			83,480				38.5	%		12			5,312				43.4	%		109		134,921			38.7	%
81-100	18			11,833				9.9	%		33			15,463				7.1	%		3			579				4.7	%		54		27,875			8	%
> 100	7			5,860				4.9	%		59			18,670				8.6	%		1			390				3.2	%		67		24,920			7.1	%
Total	147			$	119,958			100	%		204			$	216,765			100	%		31			$	12,241			100	%		382		$	348,964		100	%
31-Dec-14
< 61	77			$	58,856			47.8	%		60			$	93,254			44.7	%		15			$	6,023			46	%		152		$	158,133		45.8	%
61-80	45			46,177				37.5	%		54			81,472				38.9	%		12			5,901				45	%		111		133,550			38.6	%
81-100	18			11,846				9.6	%		33			14,927				7.1	%		4			781				6	%		55		27,554			8	%
> 100	8			6,298				5.1	%		60			19,554				9.3	%		1			394				3	%		69		26,246			7.6	%
Total	148			$	123,177			100	%		207			$	209,207			100	%		32			$	13,099			100	%		387		$	345,483		100	%
-1	LTV represents estimated current loan to value ratio, determined by dividing current unpaid principal balance by latest estimated property value received per the Company policy.
Allowance for Loan and Lease Losses
The Company has an established credit risk management process that includes 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 that may not be able to meet the contractual 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 allowance for loan and lease losses, and partial or full charge-off. The Company maintains the allowance for loan and lease losses at a level that is considered adequate to cover the estimated and known inherent risks in the loan and lease portfolio.
The Company also maintains a reserve for unfunded loan commitments at a level that is considered adequate to cover the estimated and known inherent risks. The probability of usage of the unfunded loan commitments and credit risk factors determined based on outstanding loan balance of the same customer or outstanding loans that shares similar credit risk exposure are used to determine the adequacy of the reserve. As of March 31, 2015 and December 31, 2014, the reserve for unfunded loan commitments was $1.9 million and $1.9 million, respectively.
The credit risk monitoring system is designed to identify impaired and potential problem loans, and to permit 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 which it believes should be effective in ensuring that the Company maintains an adequate allowance for credit losses. The Board of Directors provides oversight and guidance for management’s allowance evaluation process, including quarterly valuations, and consideration of management’s determination of whether the allowance is adequate to absorb losses in the loan and lease portfolio. The determination of the amount of the allowance for loan and lease losses and the provision for loan and lease losses is based on management’s current judgment about the credit quality of the loan and lease portfolio and takes into consideration known relevant internal and external factors that affect collectability when determining the appropriate level for the allowance for loan and lease losses. Additions to the allowance for loan and lease losses are made by charges to the provision for loan and lease losses. Identified credit exposures that are determined to be uncollectible are charged against the allowance for loan and lease losses. Recoveries of previously charged off amounts, if any, are credited to the allowance for loan and lease losses.
The following table presents a summary of activity in the allowance for loan and lease losses for the periods indicated:
	Three Months Ended
	March 31,
	2015				2014
	(In thousands)
Balance at beginning of period	$	29,480			$	18,805
Loans and leases charged off	(357		)		(203		)
Recoveries of loans and leases previously charged off	222				435
Transfer of loans from (to) held-for-sale	—				(963		)
Provision for loan and lease losses	—				1,929
Balance at end of period	$	29,345			$	20,003
The following table presents the activity and balance in the allowance for loan and lease losses and the recorded investment, excluding accrued interest, in loans and leases by portfolio segment and is based on the impairment method as of or for the three months ended March 31, 2015:
	Commercial				Commercial				Multi-				SBA				Construction				Lease				Single				Other			Unallocated			Total
	and				Real Estate				family												Financing				Family				Consumer
	Industrial																								Residential
																									Mortgage
	(In thousands)
Allowance for loan and lease losses:
Balance at December 31, 2014	$	6,910			$	3,840			$	7,179			$	335			$	846			$	873			$	7,192			$	2,305		$	—		$	29,480
Charge-offs	(11		)		(259		)		—				—				—				(87		)		—				—			—			(357		)
Recoveries	3				132				3				72				—				—				—				12			—			222
Provision	(418		)		191				(18		)		159				(151		)		409				(232		)		(304		)	364			—
Balance at March 31, 2015	$	6,484			$	3,904			$	7,164			$	566			$	695			$	1,195			$	6,960			$	2,013		$	364		$	29,345
Individually evaluated for impairment	$	749			$	—			$	—			$	—			$	—			$	—			$	450			$	—		$	—		$	1,199
Collectively evaluated for impairment	5,677				3,792				7,164				547				695				1,195				6,493				2,013			364			27,940
Acquired with deteriorated credit quality	58				112				—				19				—				—				17				—			—			206
Total ending allowance balance	$	6,484			$	3,904			$	7,164			$	566			$	695			$	1,195			$	6,960			$	2,013		$	364		$	29,345
Loans:
Individually evaluated for impairment	$	8,087			$	373			$	1,566			$	9			$	—			$	—			$	21,790			$	294		$	—		$	32,119
Collectively evaluated for impairment	480,063				964,929				938,487				45,109				38,081				102,012				920,193				170,924			—			3,659,798
Acquired with deteriorated credit quality	1,079				10,432				—				3,136				—				—				227,151				—			—			241,798
Total ending loan balances	$	489,229			$	975,734			$	940,053			$	48,254			$	38,081			$	102,012			$	1,169,134			$	171,218		$	—		$	3,933,715
The following table presents the activity and balance in the allowance for loan and lease losses and the recorded investment, excluding accrued interest, in loans and leases by portfolio segment and is based on the impairment method as of or for the three months ended March 31, 2014:
	Commercial				Commercial				Multi-				SBA				Construction				Lease				Single				Other			Unallocated			Total
	and				Real Estate				family												Financing				Family				Consumer
	Industrial																								Residential
																									Mortgage
	(In thousands)
Allowance for loan and lease losses:
Balance at December 31, 2013	$	1,822			$	5,484			$	2,566			$	235			$	244			$	428			$	7,044			$	532		$	450		$	18,805
Charge-offs	—				—				—				(17		)		—				—				(151		)		(35		)	—			(203		)
Recoveries	26				316				—				92				—				—				—				1			—			435
Transfer of loans to held-for-sale	—				—				—				—				—				—				(963		)		—			—			(963		)
Provision	519				649				154				(99		)		108				194				217				284			(97		)	1,929
Balance at March 31, 2014	$	2,367			$	6,449			$	2,720			$	211			$	352			$	622			$	6,147			$	782		$	353		$	20,003
Individually evaluated for impairment	$	—			$	—			$	37			$	—			$	—			$	—			$	25			$	—		$	—		$	62
Collectively evaluated for impairment	2,367				6,449				2,683				211				352				622				5,926				782			353			19,745
Acquired with deteriorated credit quality	—				—				—				—				—				—				196				—			—			196
Total ending allowance balance	$	2,367			$	6,449			$	2,720			$	211			$	352			$	622			$	6,147			$	782		$	353		$	20,003
Loans:
Individually evaluated for impairment	$	—			$	3,218			$	1,674			$	—			$	—			$	—			$	10,160			$	212		$	—		$	15,264
Collectively evaluated for impairment	297,646				542,750				153,708				23,064				25,144				48,537				856,664				120,795			—			2,068,308
Acquired with deteriorated credit quality	1,538				14,613				—				3,477				—				—				292,039				1,756			—			313,423
Total ending loan balances	$	299,184			$	560,581			$	155,382			$	26,541			$	25,144			$	48,537			$	1,158,863			$	122,763		$	—		$	2,396,995
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.
	31-Mar-15												31-Dec-14
	Unpaid				Recorded				Allowance				Unpaid				Recorded				Allowance
	Principal				Investment				for Loan and				Principal				Investment				for Loan and
	Balance								Lease Losses				Balance								Lease Losses
	(In thousands)
With no related allowance recorded:
Commercial:
Commercial and industrial	$	4,085			$	3,953			$	—			$	4,803			$	4,708			$	—
Commercial real estate	1,233				373				—				1,910				1,017				—
Multi-family	1,732				1,566				—				1,747				1,594				—
SBA	23				9				—				24				6				—
Consumer:
Single family residential mortgage	17,396				16,725				—				15,729				15,131				—
Other consumer	294				294				—				507				503				—
With an allowance recorded:
Commercial:
Commercial and industrial	4,179				4,134				749				4,310				4,313				788
Commercial real estate	—				—				—				—				—				—
Multi-family	—				—				—				—				—				—
Consumer:
Single family residential mortgage	5,243				5,065				450				6,422				6,206				500
Other consumer	—				—				—				—				—				—
Total	$	34,185			$	32,119			$	1,199			$	35,452			$	33,478			$	1,288
The following table presents information on impaired loans and leases, disaggregated by class, for the periods indicated:
	Three Months Ended March 31,
	2015												2014
	Average				Interest				Cash Basis				Average				Interest				Cash Basis
	Recorded				Income				Interest				Recorded				Income				Interest
	Investment				Recognized				Recognized				Investment				Recognized				Recognized
	(In thousands)
Commercial:
Commercial and industrial	$	8,199			$	119			$	130			$	—			$	—			$	—
Commercial real estate	383				10				10				3,417				49				57
Multi-family	1,580				13				15				1,684				13				13
SBA	7				—				—				—				—				—
Consumer:
Single family residential mortgage	21,866				179				176				10,270				65				65
Other consumer	294				2				3				213				1				1
Total	$	32,329			$	323			$	334			$	15,584			$	128			$	136
Non-accrual Loans and Leases
The following table presents nonaccrual loans and leases, and loans past due 90 days or more and still accruing as of the dates indicated:
	31-Mar-15												31-Dec-14
	NTM Loans				Traditional				Total				NTM Loans				Traditional				Total
					Loans												Loans
	(In thousands)
Loans past due 90 days or more and still accruing	$	—			$	—			$	—			$	—			$	—			$	—
Nonaccrual loans and leases:
The Company maintains specific allowances for these loans of $584 in 2015 and $478 in 2014	13,635				29,119				42,754				14,592				23,789				38,381
The following table presents the composition of nonaccrual loans and leases as of the dates indicated:
	31-Mar-15												31-Dec-14
	NTM Loans				Traditional				Total				NTM Loans				Traditional				Total
					Loans												Loans
	(In thousands)
Commercial:
Commercial and industrial	$	—			$	6,676			$	6,676			$	—			$	7,143			$	7,143
Commercial real estate	—				1,026				1,026				—				1,017				1,017
Multi-family	—				2,005				2,005				—				1,834				1,834
SBA	—				342				342				—				285				285
Construction	—				—				—				—				—				—
Lease financing	—				663				663				—				100				100
Consumer:
Single family residential mortgage	2,957				18,371				21,328				2,049				13,370				15,419
Green Loans (HELOC) - first liens	10,678				—				10,678				12,334				—				12,334
Green Loans (HELOC) - second liens	—				—				—				209				—				209
Other consumer	—				36				36				—				40				40
Total nonaccrual loans and leases	$	13,635			$	29,119			$	42,754			$	14,592			$	23,789			$	38,381
Past Due Loans and Leases
The following table presents the aging of the recorded investment in past due loans and leases as of March 31, 2015, excluding accrued interest receivable (which is not considered to be material), by class of loans and leases:
	31-Mar-15
	30 - 59 Days				60 - 89 Days				Greater				Total				Current				Total
	Past Due				Past Due				than				Past Due
									89 Days
									Past due
	(In thousands)
NTM loans:
Single family residential mortgage	$	1,121			$	419			$	2,957			$	4,497			$	224,509			$	229,006
Green Loans (HELOC) - first liens	9,076				—				—				9,076				110,882				119,958
Green Loans (HELOC) - second liens	—				—				—				—				4,748				4,748
Other consumer	—				—				—				—				113				113
Total NTM loans	10,197				419				2,957				13,573				340,252				353,825
Traditional loans and leases:
Commercial:
Commercial and industrial	601				16				170				787				487,363				488,150
Commercial real estate	3,230				495				653				4,378				960,924				965,302
Multi-family	629				2,487				207				3,323				936,730				940,053
SBA	6				—				314				320				44,798				45,118
Construction	—				—				—				—				38,081				38,081
Lease financing	1,033				64				663				1,760				100,252				102,012
Consumer:
Single family residential mortgage	17,453				2,765				15,574				35,792				557,227				593,019
Other consumer	1,150				96				—				1,246				165,111				166,357
Total traditional loans and leases	24,102				5,923				17,581				47,606				3,290,486				3,338,092
Purchased Credit Impaired (PCI) loans:
Commercial:
Commercial and industrial	736				—				—				736				343				1,079
Commercial real estate	—				—				1,055				1,055				9,377				10,432
SBA	668				8				616				1,292				1,844				3,136
Consumer:
Single family residential mortgage	11,863				3,100				5,315				20,278				206,873				227,151
Total PCI loans	13,267				3,108				6,986				23,361				218,437				241,798
Total	$	47,566			$	9,450			$	27,524			$	84,540			$	3,849,175			$	3,933,715
The following table presents the aging of the recorded investment in past due loans and leases as of December 31, 2014, excluding accrued interest receivable (which is not considered to be material), by class of loans and leases:
	31-Dec-14
	30 - 59 Days				60 - 89 Days				Greater				Total				Current				Total
	Past Due				Past Due				than				Past Due
									89 Days
									Past due
	(In thousands)
NTM loans:
Single family residential mortgage	$	1,415			$	165			$	2,049			$	3,629			$	218,677			$	222,306
Green Loans (HELOC) - first liens	8,853				—				437				9,290				113,887				123,177
Green Loans (HELOC) - second liens	294				—				209				503				4,476				4,979
Other consumer	—				—				—				—				113				113
Total NTM loans	10,562				165				2,695				13,422				337,153				350,575
Traditional loans and leases:
Commercial:
Commercial and industrial	79				37				3,370				3,486				486,280				489,766
Commercial real estate	2,237				—				—				2,237				986,093				988,330
Multi-family	1,072				208				—				1,280				954,403				955,683
SBA	82				—				254				336				32,662				32,998
Construction	—				—				—				—				42,198				42,198
Lease financing	1,055				36				100				1,191				84,558				85,749
Consumer:
Single family residential mortgage	17,185				7,878				10,411				35,474				559,626				595,100
Other consumer	9				89				5				103				161,723				161,826
Total traditional loans and leases	21,719				8,248				14,140				44,107				3,307,543				3,351,650
PCI loans:
Commercial:
Commercial and industrial	—				—				—				—				1,134				1,134
Commercial real estate	—				—				951				951				10,576				11,527
SBA	878				—				300				1,178				1,979				3,157
Consumer:
Single family residential mortgage	13,262				3,501				4,510				21,273				209,806				231,079
Total PCI loans	14,140				3,501				5,761				23,402				223,495				246,897
Total	$	46,421			$	11,914			$	22,596			$	80,931			$	3,868,191			$	3,949,122
Troubled Debt Restructurings
Troubled Debt Restructurings (TDRs) of loans are defined by ASC 310-40, “Troubled Debt Restructurings by Creditors” and ASC 470-60, “Troubled Debt Restructurings by Debtors” and evaluated for impairment in accordance with ASC 310-10-35. 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 a 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.
For the three months ended March 31, 2015, there were 2 modifications through bankruptcy discharges. There were no modifications for the three ended March 31, 2014. The following table summarizes the pre-modification and post-modification balances of the new TDRs for the three months ended March 31, 2015 and 2014:
	Three Months Ended March 31,
	2015											2014
	Number of			Pre-				Post-Modification				Number of			Pre-Modification				Post-Modification
	Loans			Modification				Outstanding				Loans			Outstanding				Outstanding
				Outstanding				Recorded							Recorded				Recorded
				Recorded				Investment							Investment				Investment
				Investment
	($ in thousands)
Consumer:
Single family residential mortgage	2			$	1,430			$	1,430			—			$	—			$	—
Total	2			$	1,430			$	1,430			—			$	—			$	—
For the three months ended March 31, 2015 and 2014, there were no loans and leases that were modified as TDRs during the past 12 months that had payment defaults during the periods.
Troubled debt restructured loans and leases consist of the following as of the dates indicated:
	31-Mar-15												31-Dec-14
	NTM				Traditional				Total				NTM				Traditional				Total
	Loans				Loans								Loans				Loans
	(In thousands)
Commercial:
Commercial real estate	$	—			$	—			$	—			$	—			$	—			$	—
SBA	—				9				9				—				6				6
Consumer:
Single family residential mortgage	—				4,543				4,543				—				4,269				4,269
Green Loans (HELOC) - first liens	4,549				—				4,549				3,442				—				3,442
Green Loans (HELOC) - second liens	294				—				294				294				—				294
Total	$	4,843			$	4,552			$	9,395			$	3,736			$	4,275			$	8,011
The Company did not have any commitments to lend to customers with outstanding loans or leases that were classified as troubled debt restructurings as of March 31, 2015 and December 31, 2014.
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. Classification of problem single family residential loans is performed on a monthly basis while analysis of non-homogeneous loans and leases is performed on a quarterly basis. 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/Loss”.
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 institution will sustain some loss if the deficiencies are not corrected.
Doubtful/Loss: 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.
Not-Rated: When accrual of income on a pool of purchased credit impaired (PCI) loans with common risk characteristics is appropriate in accordance with ASC 310-30, individual loans in those pools are not risk-rated. The credit criteria evaluated are FICO scores, loan-to-value, delinquency, and actual cash flows versus expected cash flows of the loan pools.
Loans and leases not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass rated loans and leases.
The following table presents the risk categories for loans and leases as of March 31, 2015:
	31-Mar-15
	Pass				Special				Substandard				Doubtful				Not-Rated				Total
					Mention
	(In thousands)
NTM loans:
Single family residential mortgage	$	224,683			$	2,041			$	2,282			$	—			$	—			$	229,006
Green Loans (HELOC) - first liens	100,428				3,056				16,173				301				—				119,958
Green Loans (HELOC) - second liens	4,748				—				—				—				—				4,748
Other consumer	113				—				—				—				—				113
Total NTM loans	329,972				5,097				18,455				301				—				353,825
Traditional loans and leases:
Commercial:
Commercial and industrial	476,344				106				11,700				—				—				488,150
Commercial real estate	926,109				14,099				25,094				—				—				965,302
Multi-family	919,956				5,974				14,123				—				—				940,053
SBA	44,301				—				817				—				—				45,118
Construction	38,081				—				—				—				—				38,081
Lease financing	101,285				64				663				—				—				102,012
Consumer:
Single family residential mortgage	557,947				15,848				19,224				—				—				593,019
Other consumer	166,243				78				36				—				—				166,357
Total traditional loans and leases	3,230,266				36,169				71,657				—				—				3,338,092
PCI loans:
Commercial:
Commercial and industrial	92				—				987				—				—				1,079
Commercial real estate	5,700				974				3,758				—				—				10,432
SBA	364				346				2,426				—				—				3,136
Consumer:
Single family residential mortgage	—				—				255				—				226,896				227,151
Total PCI loans	6,156				1,320				7,426				—				226,896				241,798
Total	$	3,566,394			$	42,586			$	97,538			$	301			$	226,896			$	3,933,715
The following table presents the risk categories for loans and leases as of December 31, 2014:
	31-Dec-14
	Pass				Special				Substandard				Doubtful				Not-Rated				Total
					Mention
	(In thousands)
NTM loans:
Single family residential mortgage	$	219,747			$	279			$	2,280			$	—			$	—			$	222,306
Green Loans (HELOC) - first liens	104,640				399				18,138				—				—				123,177
Green Loans (HELOC) - second liens	4,770				—				209				—				—				4,979
Other consumer	113				—				—				—				—				113
Total NTM loans	329,270				678				20,627				—				—				350,575
Traditional loans and leases:
Commercial:
Commercial and industrial	477,319				117				12,330				—				—				489,766
Commercial real estate	943,645				14,281				30,404				—				—				988,330
Multi-family	932,438				6,684				16,561				—				—				955,683
SBA	32,171				—				827				—				—				32,998
Construction	42,198				—				—				—				—				42,198
Lease financing	85,613				36				100				—				—				85,749
Consumer:
Single family residential mortgage	569,871				10,395				14,834				—				—				595,100
Other consumer	161,701				85				40				—				—				161,826
Total traditional loans and leases	3,244,956				31,598				75,096				—				—				3,351,650
PCI loans:
Commercial:
Commercial and industrial	104				—				1,030				—				—				1,134
Commercial real estate	6,676				985				3,866				—				—				11,527
SBA	677				351				2,129				—				—				3,157
Consumer:
Single family residential mortgage	—				—				268				—				230,811				231,079
Total PCI loans	7,457				1,336				7,293				—				230,811				246,897
Total	$	3,581,683			$	33,612			$	103,016			$	—			$	230,811			$	3,949,122
Purchased Credit Impaired Loans
During the years ended December 31, 2013 and 2012, the Company acquired loans and leases through business acquisitions and purchases of loan pools for which there was, at acquisition, 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 the outstanding balance and carrying amount of those loans and leases, which are sometimes collectively referred to as “PCI loans” as of the dates indicated:
	31-Mar-15								31-Dec-14
	Outstanding				Carrying				Outstanding				Carrying
	Balance				Amount				Balance				Amount
	(In thousands)
Commercial:
Commercial and industrial	$	1,700			$	1,079			$	1,767			$	1,134
Commercial real estate	12,052				10,432				13,708				11,527
SBA	4,175				3,136				4,220				3,157
Consumer:
Single family residential mortgage	277,253				227,151				283,067				231,079
Total	$	295,180			$	241,798			$	302,762			$	246,897
The following table presents a summary of accretable yield, or income expected to be collected for the periods indicated:
	Three Months Ended
	March 31,
	2015				2014
	(In thousands)
Balance at beginning of period	$	92,301			$	126,336
New loans or leases purchased	—				—
Accretion of income	(5,048		)		(7,169		)
Changes in expected cash flows	(25		)		131
Disposals	(1,933		)		(10,950		)
Balance at end of period	$	85,295			$	108,348
The Company did not purchase any PCI loans during the three months ended March 31, 2015 or 2014. During the three months ended March 31, 2015, the Company did not sell any PCI loans. During the three months ended March 31, 2014, the Company sold a portion of PCI loans with unpaid principal balances and carrying values of $27.7 million and $16.1 million, respectively, and recognized net gain on sale of loans of $2.3 million from the transaction.

SERVICING_RIGHTS

SERVICING RIGHTS	3 Months Ended
	Mar. 31, 2015
Transfers and Servicing [Abstract]
SERVICING RIGHTS	SERVICING RIGHTS
	The Company retains mortgage servicing rights (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.
	Income (loss) from servicing rights for the three months ended March 31, 2015 and 2014 was $(442) thousand and $1.3 million, respectively. The decrease was mainly due to a loss recognized on the fair value of servicing rights. These amounts are reported in Loan Servicing Income in the Consolidated Statements of Operations. The following table presents a composition of servicing rights as of the dates indicated:
		March 31,			31-Dec-14
		2015
		(In thousands)
	Mortgage servicing rights, at fair value	$	21,165		$	19,082
	SBA servicing rights, at cost	664			484
	Total	$	21,829		$	19,566
	Mortgage loans sold with servicing retained are not reported as assets and are subserviced by a third party vendor. The unpaid principal balance of these loans at March 31, 2015 and December 31, 2014 was $2.12 billion and $1.92 billion, respectively. Custodial escrow balances maintained in connection with serviced loans were $8.1 million and $8.3 million at March 31, 2015 and December 31, 2014, respectively.
	Mortgage Servicing Rights
	At March 31, 2015 and December 31, 2014, $0 and $5.9 million of the mortgage servicing rights were valued based on a market bid that settled subsequent to each period end, which were classified as Level 3, respectively. The following table presents the key characteristics, inputs and economic assumptions used to estimate the fair value of the MSRs as of the dates indicated:
		March 31,			31-Dec-14
		2015
		($ in thousands)
	Fair value of retained MSRs	$	21,165		$	13,135
	Discount rate	9.84		%	10.09		%
	Constant prepayment rate	12.98		%	13.22		%
	Weighted-average life (in years)	6.04			5.8
	The following table presents activity in the MSRs for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	19,082		$	13,535
	Additions	10,192			5,140
	Changes in fair value resulting from valuation inputs or assumptions	(528		)	462
	Sales of servicing rights	(5,862		)	—
	Other—loans paid off	(1,719		)	(584		)
	Balance at end of period	$	21,165		$	18,553
	SBA Servicing Rights
	The Company used a discount rate of 7.25 percent to calculate the present value of cash flows and an estimated prepayment speed based on prepayment data available. 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
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	484		$	348
	Additions	195			—
	Amortization, including prepayments	(15		)	(21		)
	Balance at end of period	$	664		$	327

OTHER_REAL_ESTATE_OWNED

OTHER REAL ESTATE OWNED	3 Months Ended
	Mar. 31, 2015
Real Estate Owned, Disclosure of Detailed Components [Abstract]
OTHER REAL ESTATE OWNED	OTHER REAL ESTATE OWNED
	The following table presents the activity in other real estate owned for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	423		$	—
	Additions	534			150
	Sales and net direct write-downs	(437		)	—
	Net change in valuation allowance	(22		)	—
	Balance at end of period	$	498		$	150
	The following table presents the activity in the other real estate owned valuation allowance for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	32		$	—
	Additions	22			—
	Net direct write-downs and removals from sale	—			—
	Balance at end of period	$	54		$	—
	The following table presents expenses related to foreclosed assets included in Loan Servicing and Foreclosure Expenses on the Consolidated Statements of Operations for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Net gain (loss) on sales	$	17		$	—
	Operating expenses, net of rental income	—			—
	Total	$	17		$	—
	The Company did not provide loans for sale of other real estate owned during the three months ended March 31, 2015 and 2014.

GOODWILL_AND_OTHER_INTANGIBLE_

GOODWILL AND OTHER INTANGIBLE ASSETS, NET	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS, NET	GOODWILL AND OTHER INTANGIBLE ASSETS, NET
	At March 31, 2015, the Company had goodwill of $31.6 million related to the RenovationReady, CS Financial, Private Bank of California, and Beach Business Bank acquisitions.
	The Company tests its goodwill for impairment annually as of August 31 (the Measurement Date). At the Measurement Date, the Company, in accordance with ASC 350-20-35-3, evaluates, based on the weight of evidence, the significance of all qualitative factors to determine whether it is more likely than not that the fair value of the reporting unit is less than its carrying amount. The assessment of qualitative factors at the most recent Measurement Date indicated that it is not more likely than not that impairment existed; as a result no further testing was performed.
	Core deposit intangibles are amortized over their useful lives ranging from 4 to 10 years. As of March 31, 2015, the weighted average remaining amortization period for core deposit intangibles was approximately 8.0 years. Customer relationship intangible, related to the RenovationReady acquisition, is amortized over its useful life of 5 years. As of March 31, 2015, the remaining amortization period for customer relationship intangible was approximately 3.8 years. Trade name intangibles, related to the RenovationReady and CS Financial acquisitions, have indefinite useful lives. The following table presents a summary of other intangible assets as of the dates indicated:
		Gross		Accumulated		Net
		Carrying		Amortization		Carrying
		Value				Value
		(In thousands)
	31-Mar-15
	Core deposit intangibles	$	31,162	$	8,748	$	22,414
	Customer relationship intangible	670		156		514
	Trade name intangibles	780		—		780
	31-Dec-14
	Core deposit intangibles	$	31,162	$	7,237	$	23,925
	Customer relationship intangible	670		123		547
	Trade name intangibles	780		—		780
	Aggregate amortization of intangible assets was $1.5 million and $939 thousand for the three months ended March 31, 2015 and 2014, respectively. The following table presents estimated future amortization expenses as of March 31, 2015:
		2015		2016		2017		2018		2019 and		Total
										After
		(In thousands)
	Estimated future amortization expense	$	4,292	$	4,946	$	4,066	$	3,205	$	6,419	$	22,928
	The Company has identified operating segments for purposes of management reporting and, accordingly, reallocated goodwill reporting units. Management reallocated goodwill to the reporting units using a relative fair value approach. The carrying values of goodwill allocated to the reportable segments were $29.5 million and $2.1 million to the Banking segment and Mortgage Banking segment, respectively, at March 31, 2015. See Note 19 for additional information.

FEDERAL_HOME_LOAN_BANK_ADVANCE

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS	3 Months Ended
	Mar. 31, 2015
Banking and Thrift [Abstract]
FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS	FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS
	At March 31, 2015, $400.0 million of the Bank's advances from the FHLB were fixed-rate and had interest rates ranging from 0.28 percent to 0.34 percent with a weighted average interest rate of 0.31 percent and $145.0 million of the Bank’s advances from the FHLB were variable-rate and had a weighted average interest rate of 0.24 percent. At December 31, 2014, $400.0 million of the Bank’s advances from the FHLB were fixed-rate and had interest rates ranging from 0.19 percent to 0.82 percent with a weighted average interest rate of 0.31 percent, and $233.0 million of the Bank’s advances from the FHLB were variable-rate and had a weighted average interest rate of 0.27 percent.
	Each advance is payable at its maturity date. Advances paid early are subject to a prepayment penalty. At March 31, 2015 and December 31, 2014, the Bank’s advances from the FHLB were collateralized by certain real estate loans with an aggregate unpaid principal balance of $1.89 billion and $1.84 billion, respectively. The Bank’s investment in capital stock of the FHLB of San Francisco totaled $27.4 million and $29.8 million at March 31, 2015 and December 31, 2014, respectively. Based on this collateral and the Bank’s holdings of FHLB stock, the Bank was eligible to borrow an additional $943.0 million at March 31, 2015.
	The Bank maintained a line of credit of $111.1 million from the Federal Reserve Discount Window, to which the Bank pledged loans with a carrying value of $149.0 million with no outstanding borrowings at March 31, 2015. The Bank also maintained available unsecured federal funds lines of credit of $85.0 million and potential borrowings under repurchase agreements up to $319.6 million at March 31, 2015.
	On March 30, 2015, Banc of California, Inc. established a line of credit of $20.0 million with a financial institution with a maturity date of March 28, 2016 at a floating interest rate equal to a LIBOR rate plus 2.25 percent or a prime rate, the proceeds of which are to be used for working capital purposes. The Company had outstanding borrowings of $15.0 million under this line of credit at March 31, 2015.

LONG_TERM_DEBT

LONG TERM DEBT	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
LONG TERM DEBT	LONG TERM DEBT
	Senior Notes
	On April 23, 2012, the Company completed the public offering of $33.0 million aggregate principal amount of its 7.50 percent Senior Notes due April 15, 2020 (the Senior Notes I) at a price to the public of $25.00 per Senior Note I. Net proceeds after discounts were approximately $31.7 million.
	On December 6, 2012, the Company completed the issuance and sale of an additional $45.0 million aggregate principal amount of the Senior Notes I at a price to the public of $25.00 per Senior Note I, plus accrued interest from October 15, 2012. Net proceeds after discounts, including a full exercise of the $6.8 million underwriters’ overallotment option on December 7, 2012, were approximately $50.1 million.
	The Senior Notes I were issued under the Senior Debt Securities Indenture, dated as of April 23, 2012 (the Base Indenture), as supplemented by the First Supplemental Indenture, dated as of April 23, 2012, (the First Supplemental Indenture, and together with the Base Indenture, the Senior Notes I Indenture), between the Company and U.S. Bank National Association, as trustee.
	The Senior Notes I 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 Senior Notes I bear interest at a per-annum rate of 7.50 percent. The Company makes interest payments on the Senior Notes I quarterly in arrears.
	The Company may, at the Company’s option, on April 15, 2015, or on any scheduled interest payment date thereafter, redeem the Senior Notes I in whole or in part on not less than 30 nor more than 60 days’ prior notice. The Senior Notes I will be redeemable at a redemption price equal to 100 percent of the principal amount of the Senior Notes I to be redeemed plus accrued and unpaid interest to the date of redemption.
	The Senior Notes I 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.
	Subsequent to March 31, 2015, the Company completed the issuance and sale of additional senior notes (Senior Notes II). See Note 21 for additional information.
	Tangible Equity Units – Amortizing Notes
	On May 21, 2014, the Company issued $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 is comprised of (i) a prepaid stock purchase contract (each a Purchase Contract) that will be 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 has an initial principal amount of $10.604556 per Amortizing Note, bears interest at a rate of 7.50 percent per annum and has a scheduled final installment payment date of May 15, 2017. The Company has the right to defer installment payments on the Amortizing Notes at any time and from time to time, subject to certain restrictions, so long as such deferral period does not extend beyond May 15, 2019.
	The Purchase Contracts and Amortizing Notes are accounted for separately. The Purchase Contract component of the TEUs is recorded in Additional Paid in Capital on the Consolidated Statements of Financial Condition. The Amortizing Note is recorded in Notes Payable on 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. 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 liability 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 is being amortized over the term of the amortizing note. Net proceeds of $65.0 million from the issuance of the TEUs were designated to partially finance the BPNA Branch Acquisition and for general corporate purposes. See Note 15 for additional information.

INCOME_TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES
	For the three months ended March 31, 2015 and 2014, income tax expense was $9.5 million and $191 thousand, respectively, and the effective tax rate was 43.1 percent and 20.3 percent, respectively. The Company’s effective tax rate increased due to the release of the valuation allowance during the three months ended March 31, 2014, and an increase in the ASC 740-10-25 liability and interest expense related to the settlement of the 2010 and 2011 Internal Revenue Service examination.
	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 $14.2 million and $16.4 million at March 31, 2015 and December 31, 2014, respectively.
	ASC 740-10-25 (formerly FIN 48) 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 $5.7 million and $5.4 million at March 31, 2015 and December 31, 2014, respectively. The Company believes that it is reasonably possible that the total amount of unrecognized tax benefits will decrease up to $5.3 million in the next twelve months due to anticipated certain changes to the Company's tax accounting methods. As of March 31, 2015, the total unrecognized tax benefit that, if recognized, would impact the effective tax rate was $340 thousand. At March 31, 2015 and December 31, 2014, the Company had $30 thousand and $23 thousand accrued for interest or penalties, respectively. 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 examination by U.S. Federal taxing authorities for years before 2010 (with the exception of Gateway Bancorp, a predecessor entity, which is currently under exam by the Internal Revenue Service for the 2008 and 2009 tax years).The statute of limitations for the assessment of California Franchise taxes has expired for tax years before 2010 (other state income and franchise tax statutes of limitations vary by state).
	ASU 2014-01 was adopted effective January 1, 2015. Under this standard, amortization of investments in qualified low income housing tax credits is reported within income tax expense. See Note 1 for additional information.

MORTGAGE_BANKING_ACTIVITIES

MORTGAGE BANKING ACTIVITIES	3 Months Ended
	Mar. 31, 2015
Mortgage Banking Activities [Abstract]
MORTGAGE BANKING ACTIVITIES	MORTGAGE BANKING ACTIVITIES
	The Bank originates conforming single family residential mortgage loans and sells these loans in the secondary market. The amount of net revenue on mortgage banking activities is a function of mortgage loans originated for sale and the fair values of these loans and derivatives. Net revenue on mortgage banking activities includes mark to market pricing adjustments on loan commitments and forward sales contracts, and initial capitalized value of mortgage servicing rights (MSRs).
	During the three months ended March 31, 2015, the Bank originated $1.01 billion and sold $927.7 million conforming single family residential mortgage loans in the secondary market. The net gain and margin were $34.4 million and 3.41 percent, respectively, and loan origination fees were $3.5 million for the three months ended March 31, 2015. Included in the net gain is the initial capitalized value of our MSRs, which totaled $9.8 million, on loans sold to Fannie Mae, Freddie Mac and Ginnie Mae for the three months ended March 31, 2015.
	During the three months ended March 31, 2014, the Bank originated $511.5 million and sold $531.8 million of conforming single family residential mortgage loans in the secondary market. The net gain and margin were $15.2 million and 2.96 percent, respectively, and loan origination fees were $2.2 million for the three months ended March 31, 2014. Included in the net gain is the initial capitalized value of our MSRs, which totaled $4.8 million, on loans sold to Fannie Mae and Freddie Mac for the three months ended March 31, 2014.
	Mortgage Loan Repurchase Obligations
	In addition to net revenue on mortgage banking activities, the Company records provisions to the representation and warranty reserve representing our initial estimate of losses on probable mortgage repurchases or loss reimbursements. Total provision for loan repurchases totaled $1.3 million and $571 thousand for the three months ended March 31, 2015 and 2014, respectively. Of these total provisions for loan repurchases, the Company recorded an initial provision for loan repurchases of $483 thousand against net revenue on mortgage banking activities during the three months ended March 31, 2015.
	The following table presents a summary of activity in the reserve for losses on repurchased loans for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	8,303		$	5,427
	Provision for loan repurchases	1,328			571
	Payments made for loss reimbursement on sold loans	(1,199		)	(132		)
	Balance at end of period	$	8,432		$	5,866

RISK_MANAGEMENT_AND_DERIVATIVE

RISK MANAGEMENT AND DERIVATIVE INSTRUMENTS	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
RISK MANAGEMENT AND DERIVATIVE INSTRUMENTS	RISK MANAGEMENT AND 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. The Company utilizes forward contracts and investor commitments to economically hedge mortgage banking products and may from time to time use interest rate swaps as hedges against certain liabilities.
	On September 30, 2013 and January 30, 2015, the Company entered into pay-fixed, receive-variable interest-rate swap contracts for the notional amounts of $50.0 million and $25.0 million, respectively, with maturity dates of September 27, 2018 and January 30, 2022, respectively. These swap contracts were entered into with institutional counterparties to hedge against variability in cash flows attributable to interest rate risk caused by changes in the LIBOR benchmark interest rate on the Company’s ongoing LIBOR based variable rate deposits. The Company is accounting for the swaps as cash flow hedges under ASC 815. The fair values of the interest rate swaps were losses of $415 thousand and $235 thousand as of March 31, 2015 and December 31, 2014, respectively.
	The Company originates residential real estate mortgage loans and generates revenues from the origination and sale of these loans. Although management closely monitors market conditions, such activities are sensitive to fluctuations in prevailing interest rates and real estate markets. As of March 31, 2015, approximately 78.8 percent of all properties securing loans held for sale were located in California. A change in the underlying economic conditions of the California residential real estate market could have an adverse impact on the Company’s results of operations.
	In connection with mortgage banking activities, if interest rates increase, the value of the Company’s loan commitments to borrowers and fixed rate mortgage loans held-for-sale are adversely impacted. The Company attempts to economically hedge the risk of the overall change in the fair value of loan commitments to borrowers and mortgage loans held for sale by selling forward contracts on securities with government-sponsored enterprises (GSEs) and investors in loans. Forward contracts on securities of GSEs and loan commitments to borrowers are non-designated derivative instruments and the gains and losses resulting from these derivative instruments are included in Net Revenue on Mortgage Banking Activities in the Consolidated Statements of Operations. At March 31, 2015, the resulting derivative assets of $13.6 million and liabilities of $4.1 million, are included in Other Assets and Accrued Expenses and Other Liabilities, respectively, on the Consolidated Statements of Financial Condition. At March 31, 2015, the Company had outstanding forward sales commitments totaling $572.0 million. At March 31, 2015, the Company was committed to fund loans for borrowers of approximately $439.9 million.
	The net losses relating to free-standing derivative instruments used for risk management were $2.7 million and $3.6 million for the three months ended March 31, 2015 and 2014, respectively, and are included in Net Revenue on Mortgage Banking Activities in the Consolidated Statements of Operations.
	The following table presents the amount and market value of derivative instruments included in the Consolidated Statements of Financial Condition as of the dates indicated. Note 3 contains further disclosures pertaining to the fair value of mortgage banking derivatives.
		31-Mar-15				31-Dec-14
		Notional		Fair Value		Notional		Fair Value
		Amount				Amount
		(In thousands)
	Included in assets:
	Interest rate lock commitments	$	429,917	$	13,555	$	179,923	$	5,750
	Mandatory forward commitments	—		—		25,735		629
	Total included in assets	$	429,917	$	13,555	$	205,658	$	6,379
	Included in liabilities:
	Interest rate lock commitments	$	9,978	$	98	$	10,075	$	197
	Mandatory forward commitments	572,000		4,039		364,829		2,803
	Interest rate swap	75,000		415		50,000		235
	Total included in liabilities	$	656,978	$	4,552	$	424,904	$	3,235

STOCK_COMPENSATION_PLANS

STOCK COMPENSATION PLANS	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK COMPENSATION PLANS	STOCK COMPENSATION PLANS
	Share-based Compensation Expense
	For the three months ended March 31, 2015 and 2014, share-based compensation expense was $1.7 million and $923 thousand, respectively, and the related tax benefits were $694 thousand and $0, respectively.
	On July 16, 2013, the Company’s stockholders approved the Company’s 2013 Omnibus Stock Incentive Plan (the 2013 Omnibus Plan). Upon the approval of the 2013 Omnibus Plan, the Company ceased being able to grant new awards under the Company’s 2011 Omnibus Incentive Plan or any prior equity incentive plans. The 2013 Omnibus Plan provides that the aggregate number of shares of Company common stock that may be subject to awards under the 2013 Omnibus Plan will be 20 percent of the then outstanding shares of Company common stock (the Share Limit), provided that in no event will the Share Limit be less than the greater of 2,384,711 shares of Company common stock and the aggregate number of shares of Company common stock with respect to which awards have been properly granted under the 2013 Omnibus Plan up to that point in time. As of March 31, 2015, based on the number of shares then registered for issuance under the 2013 Omnibus Plan, 2,988,604 shares were available for future awards under the 2013 Omnibus Plan.
	Unrecognized Share-based Compensation Expense
	The following table presents unrecognized share-based compensation expense as of March 31, 2015:
		Unrecognized			Average
		Expense			Expected
					Recognition
					Period
		($ in thousands)
	Stock option awards	$	998		2.9 years
	Restricted stock awards and restricted stock units	9,546			3.6 years
	Total	$	10,544		3.5 years
	Stock Options
	The Company has issued stock options to certain employees, officers and directors. Stock options are issued at the current market price on the date of grant (or, in the case of options granted under the 2013 Omnibus Plan, at the closing market price on the business day before the date of grant), and generally have a three to five year vesting period and contractual terms of seven to ten years.
	The following table represents stock option activity as of and for the three months ended March 31, 2015:
		Number of		Weighted-			Weighted-		Aggregated
		Shares		Average			Average		Intrinsic
				Exercise			Remaining		Value
				Price per			Contract		(In thousands)
				Share			Term
	Outstanding at beginning of period	879,070		$	12.67		7.3 years		$	32
	Granted	—		$	—		0.0 years		$	—
	Exercised	—		$	—		0.0 years		$	—
	Forfeited	(50,540	)	$	11.9		5.6 years		$	—
	Outstanding at end of period	828,530		$	12.72		7.4 years		$	229
	Exercisable at end of period	496,016		$	11.85		7.9 years		$	229
	The following table represents changes in unvested stock options and related information as of and for the three months ended March 31, 2015:
		Number		Weighted-
		of Shares		Average
				Exercise
				Price per
				Share
	Outstanding at beginning of period	552,672		$	12.74
	Granted	—		$	—
	Vested	—		$	—
	Forfeited	—		$	—
	Outstanding at end of period	552,672		$	12.74
	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 number of years (ranging from one to five years) of continued employment from the date of grant. The Company recognizes an income tax deduction in an amount equal to the taxable income reported by the holders of the restricted stock, generally when vested or, in the case of restricted stock units, when settled.
	The following table represents unvested restricted stock awards and restricted stock units activity as of and for the three months ended March 31, 2015:
		Number of		Weighted-
		Shares		Average
				Price per
				Share
	Outstanding at beginning of period	1,287,302		$	12.53
	Granted	80,670		$	10.93
	Vested	(22,419	)	$	11.06
	Forfeited	(28,669	)	$	12.22
	Outstanding at end of period	1,316,884		$	12.46
	Stock Appreciation Rights
	On August 21, 2012, the Company granted to its chief executive officer a ten-year stock appreciation right (SAR) with respect to 500,000 shares (Initial SAR) of the Company’s common stock with a base price of $12.12 per share. One third of the Initial SAR vested on the grant date, one third vested on the first anniversary of the grant date and one-third vested on the second anniversary of the grant date such that the SAR was fully vested on the second anniversary of the grant date. Upon cessation of the chief executive officer’s service with the Company for “Cause” or without “Good Reason” (including a cessation of service following the expiration of the term of the chief executive officer’s employment agreement), the vested portion of all SARs will expire 90 days following the cessation of service. Except as otherwise described below for Additional SAR VI, additional SARs (Additional SARs) have been issued to the Company’s chief executive officer with the same terms and conditions (including vesting and dividend equivalent rights) as the Initial SAR pursuant to the anti-dilution provisions under the SAR agreement with the Company due to the Company’s subsequent issuances of shares of common stock.
	On May 21, 2014, the Company issued additional SARs (Additional SAR VI) to the Company’s chief executive officer relating to a public offering of the Company’s tangible equity units (TEUs). Each TEU is comprised of a prepaid stock purchase contract (each, a Purchase Contract) and a junior subordinated amortizing note due May 15, 2017 issued by the Company (each, an Amortizing Note). Unless settled early at the holder’s option, each Purchase Contract will automatically settle and the Company will 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. The number of settlement shares underlying the Additional SAR VI was calculated using the initial maximum settlement rate and, therefore, the number of shares underlying the Additional SAR VI is subject to adjustment and forfeiture if the aggregate number of shares of stock issued in settlement of any single Purchase Contract is less than the initial maximum settlement rate.
	Until each Purchase Contract settles and the voting common stock related thereto is issued, each corresponding Additional SAR VI has a vesting date of May 21, 2017 and has no dividend equivalent rights prior to vesting. The Additional SAR VI vests earlier as follows: (i) for any Purchase Contract settled before August 21, 2014, the Additional SAR VI corresponding to such Purchase Contract became 2/3 vested and exercisable on the date on which any such Purchase Contract was settled and the remaining 1/3 became vested and exercisable on August 21, 2014 and, until it became vested on August 21, 2014, the 1/3 unvested Additional SAR VI corresponding to such Purchase Contract was eligible for the same dividend equivalent rights as the Initial SAR; (ii) for any Purchase Contract settled in shares of voting common stock on or after August 21, 2014, then the Additional SAR VI corresponding to such Purchase Contract shall become 100 percent vested and exercisable on the date on which any such Purchase Contract is settled; and (iii) if the aggregate number of shares of voting common stock issued in settlement of any single Purchase Contract on the settlement date (the Actually Issued Common Shares) is less than the initial maximum settlement rate, then the Additional SAR VI related to that single Purchase Contract shall be recalculated and adjusted pursuant to the terms of the Initial SAR based on the Actually Issued Common Shares instead of the initial maximum settlement rate and the chief executive officer shall forfeit on such settlement date any Additional SAR VI granted in excess of those that would have been granted on the respective settlement date.
	The following table represents a summary of all outstanding SARs (Initial SAR and Additional SARs, together the SARs):
		Initial SAR			Additional			Additional			Additional		Additional		Additional		Additional		Additional
					SAR I (1)			SAR II (2)			SAR III (3)		SAR IV (4)		SAR V (5)		SAR VI (6)		SAR VII (7)
	Grant Date	8/21/12			6/21/13			7/1/13			7/2/13		12/10/13		5/21/14		5/21/14		11/7/14
	Number of shares	500,000			150,933			88,366			15,275		70,877		252,023		280,110		216,334
	Base price per share	$	12.12		$	13.06		$	13.6		$	13.55	$	12.83	$	10.09	$	10.09	$	11.62
	Grant date fair value per share	$	2.77		$	2.38		$	2.17		$	2.19	$	2.47	$	1.65	$	2.22	$	1.84
	-1	Issued due to the Company’s common stock issuance for an underwritten public offering completed on June 21, 2013.
	-2	Issued due to the Company’s common stock issuance in connection with the PBOC acquisition completed on July 1, 2013.
-3	Issued due to the Company’s common stock issuance for the exercise of over-allotment option granted to the underwriters of the Company’s public common stock offering initially completed on June 21, 2013.
-4	Issued due to the Company’s common stock issuance in a private placement completed on December 10, 2013.
-5	Issued due to the Company’s common stock issuance for an underwritten public offering completed on May 21, 2014.
-6	The Additional SAR VI originally related to 300,219 shares of common stock with a scheduled vesting of May 21, 2017, as described above. As a result of the settlements of portions of the Purchase Contacts, the Additional SAR VI accelerated in vesting with respect to 143,849 shares and 20,109 shares were forfeited as of March 31, 2015. A portion of Additional SAR VI that has accelerated in vesting has the same terms and conditions as the Initial SAR.
-7	Issued due to the Company's common stock issuance for a private placement completed on November 7, 2014.
The SARs originally were to be settled in cash and the compensation expense for the SARs was recognized over the vesting period based on the fair value as calculated using Black Scholes as of the grant date and adjusted each quarter. On December 13, 2013 (the conversion date), the Company amended the Initial SAR agreement to provide that the SARs be settled in shares of voting common stock rather than cash, with all other terms remaining substantially the same. Currently, compensation expense is recognized over the vesting period based on the fair value as calculated using Black Scholes as of the conversion date for the SARs issued before the conversion date and grant dates for the SARs issued after the conversion date.

STOCKHOLDERS_EQUITY

STOCKHOLDERS' EQUITY	3 Months Ended
	Mar. 31, 2015
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 are exercisable from the date of original issuance through November 1, 2015.
	On November 1, 2010, the Company also issued warrants to COR Advisors LLC, 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, 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. As a result of transfers of these warrants subsequent to their original issuance, warrants for the right to purchase 960,000 shares of non-voting common stock are now held by Mr. Sugarman and his spouse through a living trust, and warrants for the right to purchase 435,000 shares of non-voting common stock are now held by Jeffrey T. Seabold, Executive Vice President and Chief Banking Officer of the Bank. These warrants vested in tranches, with the first tranche vesting on January 1, 2011 and the last tranche vesting on July 1, 2013 and with each respective tranche being exercisable for five years after the tranche's vesting date.
	The warrants are exercisable for voting common stock in lieu of non-voting common stock following the transfer of the warrants in a widely dispersed offering or in other limited circumstances. Based on automatic adjustments to the original $11.00 exercise price, the Company has determined that the exercise price for these warrants was $9.22 per share as of March 31, 2015. The terms and issuance of the foregoing warrants were approved by the Company's stockholders at a special meeting held on October 25, 2010.
	Common Stock
	On May 21, 2014, the Company issued 5,150,000 shares of its voting common stock in an underwritten public offering and for gross proceeds of approximately $50.4 million and 772,500 shares of voting common stock upon the exercise in full by the underwriters of the underwritten public offering of their 30-day over-allotment option, for additional gross proceeds of approximately $7.6 million.
	On November 7, 2014, the Company completed the issuance and sale of 3,288,947 shares of its voting common stock to OCM BOCA Investor, LLC (Oaktree), an entity owned by investment funds managed by Oaktree Capital Management, L.P., and 1,900,000 shares of its voting common stock to Patriot Financial Partners, L.P., Patriot Financial Partners Parallel, L.P., Patriot Financial Partners II, L.P. and Patriot Financial Partners Parallel II, L.P, for gross proceeds of $49.9 million.
	Tangible Equity Units
	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. Each TEU is comprised of a prepaid stock purchase contract (each, a Purchase Contract) and a junior subordinated amortizing note due May 15, 2017 issued by the Company (each, an Amortizing Note). Unless settled early at the holder’s option, each Purchase Contract will automatically settle and the Company will 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 to but excluding the third business day immediately preceding May 15, 2017, a holder of a Purchase Contract may settle its Purchase Contract early, and the Company will deliver to the holder 4.4456 shares of voting common stock. The holder also may elect to settle its Purchase Contract early in connection with a “fundamental change,” in which case the holder will receive a number of shares of voting common stock based on a fundamental change early settlement rate. The Company may elect to settle all Purchase Contracts early by delivering to each holder 5.1124 shares of voting common stock or, under certain circumstances, by delivering 4.4456 shares of voting common stock. As of March 31, 2015, a total of 708,692 Purchase Contracts had been settled early by their holders, resulting in the issuance by the Company of 3,150,561 shares of voting common stock. As of March 31, 2015, 671,308 Purchase Contracts remained outstanding.
	Each Amortizing Note has an initial principal amount of $10.604556 per Amortizing Note, bears interest at a rate of 7.50 percent per annum and has a scheduled final installment payment date of May 15, 2017. On each August 15, November 15, February 15 and May 15, commencing on August 15, 2014, the Company will pay 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 will be equivalent to a 8.00 percent cash distribution per year with respect to each $50.00 stated amount of TEUs. Each installment payment will constitute a payment of interest (at a rate of 7.50 percent per annum) and a partial repayment of principal on each Amortizing Note. The Company has the right to defer installment payments at any time and from time to time, subject to certain restrictions, so long as such deferral period does not extend beyond May 15, 2019. If the Company elects to settle the Purchase Contracts early, the holders of the Amortizing Notes will have the right to require the Company to repurchase the Amortizing Notes. As of March 31, 2015, the Amortizing Notes totaled $10.9 million, net of unamortized discounts, and were included in Notes Payable on the Consolidated Statements of Financial Condition.
	Preferred Stock
	Subsequent to March 31, 2015, the Company issued depositary shares, each representing a 1/40th interest in a share of preferred stock. See Note 21 for additional information.
	Change in Accumulated Other Comprehensive Income
	The Company’s accumulated other comprehensive income includes unrealized gain (losses) on available for sale investment securities and unrealized gain on cash flow hedge. Changes to other accumulated other comprehensive income are presented net of tax effect as a component of equity. Reclassifications from accumulated comprehensive income are recorded on the statements of operations either as a gain or loss.
	The following table presents changes to accumulated other comprehensive income for the periods indicated:
		Three Months Ended March 31,
		2015									2014
		Available for Sale			Cash Flow			Total			Available for Sale			Cash Flow			Total
		Securities			Hedge						Securities			Hedge
		(In thousands)
	Unrealized gain (loss)
	Balance at beginning of period	$	509		$	(136	)	$	373		$	(826	)	$	226		$	(600	)
	Unrealized gain(loss) arising during the period	3,330			(180		)	3,150			1,023			(217		)	806
	Reclassification adjustment from other comprehensive income	2			—			2			(507		)	—			(507		)
	Tax effect of current period changes	(1,403		)	76			(1,327		)	—			—			—
	Total changes, net of taxes	1,929			(104		)	1,825			516			(217		)	299
	Balance at end of period	$	2,438		$	(240	)	$	2,198		$	(310	)	$	9		$	(301	)

REGULATORY_CAPITAL_MATTERS

REGULATORY CAPITAL MATTERS	3 Months Ended
	Mar. 31, 2015
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:
		Amount		Ratio		Minimum		Ratio		Minimum		Ratio
						Capital				Required
						Requirement				to Be Well
										Capitalized Under
										Prompt Corrective
										Action Provisions
		($ in thousands)
	31-Mar-15
	Banc of California, Inc.
	Total risk-based capital ratio	$	502,054	11.55	%	$	347,838	8	%	N/A		N/A
	Tier 1 risk-based capital ratio	470,808		10.83	%	260,879		6	%	N/A		N/A
	Common equity tier 1 capital ratio	391,714		9.01	%	195,659		4.5	%	N/A		N/A
	Tier 1 leverage ratio	470,808		7.99	%	235,611		4	%	N/A		N/A
	Banc of California, NA
	Total risk-based capital ratio	$	589,547	13.58	%	$	347,348	8	%	$	434,185	10	%
	Tier 1 risk-based capital ratio	558,301		12.86	%	260,511		6	%	347,348		8	%
	Common equity tier 1 capital ratio	558,301		12.86	%	195,383		4.5	%	282,220		6.5	%
	Tier 1 leverage ratio	558,301		9.49	%	235,344		4	%	294,180		5	%
	31-Dec-14
	Banc of California, Inc.
	Total risk-based capital ratio	$	473,656	11.28	%	$	335,829	8	%	N/A		N/A
	Tier 1 risk-based capital ratio	442,307		10.54	%	167,914		4	%	N/A		N/A
	Tier 1 leverage ratio	442,307		8.57	%	206,502		4	%	N/A		N/A
	Banc of California, NA
	Total risk-based capital ratio	$	503,727	12.04	%	$	334,834	8	%	$	418,543	10	%
	Tier 1 risk-based capital ratio	472,378		11.29	%	167,417		4	%	251,126		6	%
	Tier 1 leverage ratio	472,378		9.17	%	206,095		4	%	257,619		5	%
	Through December 31, 2014, the FRB required bank holding companies such as the Company to maintain a minimum ratio of qualifying total capital to risk-weighted assets of 8.0 percent and a minimum ratio of Tier 1 capital to risk-weighted assets of 4.0 percent. In addition to the risk-based guidelines, through December 31, 2014 the FRB required bank holding companies to maintain a minimum ratio of Tier 1 capital to average total assets, referred to as the leverage ratio, of 4.0 percent. Through December 31, 2014, in order to be considered “well capitalized,” federal bank regulatory agencies required depository institutions such as the Bank to maintain a minimum ratio of qualifying total capital to risk-weighted assets of 10.0 percent, a minimum ratio of Tier 1 capital to risk-weighted assets of 6.0 percent and a minimum ratio of Tier 1 capital to average total assets, referred to as the leverage ratio, of 5.0 percent.
	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 over the period of 2015 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 will be phased in beginning on January 1, 2016 at 0.625 percent 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.

EARNINGS_PER_COMMON_SHARE

EARNINGS PER COMMON SHARE	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
EARNINGS PER COMMON SHARE	EARNINGS PER COMMON SHARE
	Net income (loss) allocated to common stockholders is computed by subtracting income allocated to participating securities, participating securities dividends and preferred stock dividends from net income. Participating securities are instruments granted in share-based payment transactions that contain rights to receive nonforfeitable dividends or dividend equivalents, which includes the SARs to the extent they confer dividend equivalent rights, as described under “Stock Appreciation Rights” in Note 14. Basic earnings (loss) per common share (EPS) is computed by dividing net income allocated to common stockholders by the weighted average number of shares outstanding, including the minimum number of shares issuable under purchase contracts relating to the tangible equity units. Diluted EPS is computed by dividing net income (loss) allocated to common stockholders by the weighted average number of shares outstanding, adjusted for the dilutive effect of the restricted stock units, the potentially issuable shares in excess of the minimum under purchase contracts relating to the tangible equity units, outstanding stock options, and warrants to purchase common stock. Computations for basic and diluted EPS are provided below.
		Three Months Ended March 31,
		2015									2014
		Common			Class B			Total			Common			Class B			Total
		Stock			Common						Stock			Common
					Stock									Stock
		($ in thousands, except per share data)
	Basic:
	Net income	$	12,560		$	14		$	12,574		$	727		$	22		$	749
	Less: income allocated to participating securities	(272		)	—			(272		)	—			—			—
	Less: participating securities dividends	(173		)	—			(173		)	—			—			—
	Less: preferred stock dividends	(909		)	(1		)	(910		)	(883		)	(27		)	(910		)
	Net income (loss) allocated to common stockholders	$	11,206		$	13		$	11,219		$	(156	)	$	(5	)	$	(161	)
	Weighted average common shares outstanding	37,831,035			42,218			37,873,253			19,609,017			590,008			20,199,025
	Basic earnings (loss) per common share	$	0.3		$	0.3		$	0.3		$	(0.01	)	$	(0.01	)	$	(0.01	)
	Diluted:
	Net income (loss) allocated to common stockholders	$	11,206		$	13		$	11,219		$	(156	)	$	(5	)	$	(161	)
	Additional income allocation for class B dilutive shares	(85		)	85			—			—			—			—
	Adjusted net income (loss) allocated to common stockholders	$	11,121		$	98		$	11,219		$	(156	)	$	(5	)	$	(161	)
	Weighted average common shares outstanding for basic earnings per common share	37,831,035			42,218			37,873,253			19,609,017			590,008			20,199,025
	Add: Dilutive effects of restricted stock units	146,876			—			146,876			—			—			—
	Add: Dilutive effects of purchase contracts	—			—			—			—			—			—
	Add: Dilutive effects of stock options	626			—			626			—			—			—
	Add: Dilutive effects of warrants	—			283,911			283,911			—			—			—
	Average shares and dilutive common shares	37,978,537			326,129			38,304,666			19,609,017			590,008			20,199,025
	Diluted earnings (loss) per common share	$	0.29		$	0.3		$	0.29		$	(0.01	)	$	(0.01	)	$	(0.01	)
	For the three months ended March 31, 2015, there were 797,514 stock options for common stock that were not considered in computing diluted earnings per common share, because they were anti-dilutive. For the three months ended March 31, 2014, there were 1,493,505 stock options and 1,635,000 warrants for common stock that were not considered in computing diluted earnings per common share, because they were anti-dilutive.

OFFBALANCE_SHEET_COMMITMENTS

OFF-BALANCE SHEET COMMITMENTS	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
OFF-BALANCE SHEET COMMITMENTS	OFF-BALANCE SHEET COMMITMENTS
	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:
		31-Mar-15				31-Dec-14
		Fixed		Variable		Fixed		Variable
		Rate		Rate		Rate		Rate
		(In thousands)
	Commitments to extend credit	$	126,760	$	94,011	$	87,517	$	82,818
	Unused lines of credit	35,865		310,839		20,631		295,626
	Letters of credit	810		11,140		825		10,411
	Commitments to make loans are generally made for periods of 30 days or less.
	As of March 31, 2015, total forward commitments were $612.1 million. These commitments consisted of jumbo mortgage loan sale commitments of $8.9 million, TBAs of $572.0 million, best efforts of $31.3 million, and other commitments of $0. Additionally, the Company had IRLCs of $439.9 million at March 31, 2015.

SEGMENT_REPORTING

SEGMENT REPORTING	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
SEGMENT REPORTING	SEGMENT REPORTING
	The Company utilizes an internal reporting system to measure the performance of various operating segments within the Bank and the Company overall. The Company has identified four operating segments for purposes of management reporting: i) Banking; ii) Mortgage Banking; iii) Financial Advisory and Asset Management; and iv) Corporate/Other. Each of these four business divisions meets the criteria of an operating segment, as each segment engages in business activities from which it earns revenues and incurs expenses and its operating results are regularly reviewed by the Company’s chief operating decision-maker, the Company's President and Chief Executive Officer or his delegate, to make decisions about resources to be allocated to the segment and assess its performance and for which discrete financial information is available.
	The principal business of the Banking segment consists of attracting deposits and investing these funds primarily in commercial, consumer and real estate secured loans. The principal business of the Mortgage Banking segment is originating conforming SFR loans and selling these loans in the secondary market. The principal business of the Financial Advisory and Asset Management segment is operated by The Palisades Group and provides services of purchase, sale and management of SFR mortgage loans. The Corporate/Other segment includes the holding company and PTB, an entity formed to hold real estate. The Corporate/Other operating segment engages in business activities through the sale of other real estate owned and loans held at the holding company and incurs interest expense on debt as well as non-interest expense for corporate related activities. The operating segment results do not include allocation of centralized costs that are currently recorded in the Banking and Corporate/Other segment. The Company is currently in the process of determining the basis for calculating allocations.
	The following table represents the operating segments’ financial results and other key financial measures as of or for the three months ended March 31, 2015 and 2014:
		As of or For the Three Months Ended
		Banking		Mortgage Banking			Financial Advisory and Asset Management		Corporate/ Other			Inter-segment Elimination			Consolidated
		(In thousands)
	31-Mar-15
	Net interest income	$	51,552	$	2,501		$	—	$	(2,056	)	$	—		$	51,997
	Provision for loan and lease losses	—		—			—		—			—			—
	Noninterest income	7,855		36,928			2,622		—			(1,425		)	45,980
	Noninterest expense	43,492		29,797			1,980		2,035			(1,425		)	75,879
	Income (loss) before income taxes	$	15,915	$	9,632		$	642	$	(4,091	)	$	—		$	22,098
	Total assets	$	5,684,574	$	406,215		$	2,987	$	25,424		$	(21,845	)	$	6,097,355
	31-Mar-14
	Net interest income	$	34,900	$	1,869		$	—	$	(1,584	)	$	—		$	35,185
	Provision for loan and lease losses	1,929		—			—		—			—			1,929
	Noninterest income	5,796		18,369			2,993		3			(1,883		)	25,278
	Noninterest expense	31,681		22,849			2,246		2,701			(1,883		)	57,594
	Income (loss) before income taxes	$	7,086	$	(2,611	)	$	747	$	(4,282	)	$	—		$	940
	Total assets	$	3,816,728	$	202,555		$	3,943	$	19,257		$	(12,018	)	$	4,030,465

RELATEDPARTY_TRANSACTIONS

RELATED-PARTY TRANSACTIONS	3 Months Ended
	Mar. 31, 2015
Related Party Transactions [Abstract]
RELATED-PARTY TRANSACTIONS	RELATED-PARTY TRANSACTIONS
	The Bank has granted loans to certain officers and directors and their related interests. Loans outstanding to officers and directors and their related interests amounted to $220 thousand and $200 thousand at March 31, 2015 and December 31, 2014, respectively, each of which were performing in accordance with their respective terms. These loans are 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 (the Program) which 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 Program is a reduction in loan fees.
	Deposits from principal officers, directors, and their related interests amounted to $3.5 million and $4.5 million at March 31, 2015 and December 31, 2014, respectively.
	Transactions Involving Steven A. Sugarman. The following is a description of transactions involving the Company and certain entities affiliated with or relatives of Steven A. Sugarman, President and Chief Executive Officer of the Company and the Bank and a member of the Board of Directors of the Company and the Bank.
	The Palisades Group Lease Payment Reimbursements. The Company acquired its subsidiary, The Palisades Group, LLC (The Palisades Group) on September 16, 2013, at which time Palisades occupied premises in Santa Monica, California leased by COR Securities Holding, Inc. (CORSHI), of which Mr. Sugarman is the Chief Executive Officer as well as a stockholder (both directly and indirectly). In light of the benefit received by The Palisades Group of its occupancy of the Santa Monica premises, the disinterested directors of the Company’s Board ratified reimbursement to CORSHI for rental payments made for the Santa Monica premises for the period commencing September 16, 2013 through June 27, 2014, the last date The Palisades Group occupied the premises. The Palisades Group negotiated with an unaffiliated third party a lease for new premises and occupied those premises on June 27, 2014.
	The aggregate amount of rent payments reimbursed to CORSHI from September 16, 2013 through December 30, 2013 were $40 thousand comprised of: (i) $6 thousand, the pro-rated base rent amount for the partial month of September 2013; (ii) $11 thousand per month in base rent for the months of October and November 2013; and (iii) $12 thousand per month in base rent for the month of December 2013.
	Regarding the security deposit for the premises, after The Palisades Group occupied the CORSHI premises, the Company reimbursed CORSHI relating to a security deposit amount for the premises of $34 thousand and the Company later received reimbursement of this security deposit amount from The Palisades Group. For the months of January 1, 2014 through June 27, 2014, CORSHI granted The Palisades Group a rent abatement equal to the $34 thousand security deposit and, combined with additional payments, The Palisades Group paid leasing costs totaling $58 thousand to CORSHI for that same time period. The Compensation, Nominating and Corporate Governance Committee of the Board has monitored all the reimbursement costs reviewed the aggregate reimbursement costs.
	The Palisades Group Consulting Agreement. As discussed above, the Company acquired its subsidiary, The Palisades Group, on September 16, 2013. Effective July 1, 2013, The Palisades Group entered into a consulting agreement with Jason Sugarman, Mr. Sugarman’s brother. Jason Sugarman provides advisory services to financial institutions and other institutional clients related to investments in residential mortgages, real estate and real estate related assets and The Palisades Group entered into the agreement with Jason Sugarman to provide these types of consulting services. The consulting agreement is for a term of 5 years, with a minimum payment of $30 thousand owed at the end of each quarter (or $600 thousand in the aggregate) for consulting services Jason Sugarman has provided The Palisades Group, which does not include any bonuses that may be earned under the agreement. For the years ended December 31, 2013 and 2014 and the three months ended March 31, 2015, base and bonus amounts earned by Jason Sugarman under the consulting agreement totaled $121 thousand, $1.2 million, and $30 thousand, respectively. Effective as of March 26, 2015, the bonus amount paid to Jason Sugarman for 2014 was credited in satisfaction and full discharge of all currently accrued but unpaid, and further quarterly payments specified under the consulting agreement, but not against any future discretionary incentive compensation payments. The consulting agreement may be terminated at any time by either The Palisades Group or Jason Sugarman upon 30 days prior written notice. The consulting agreement with Jason Sugarman was reviewed as a related party transaction and approved by the Compensation, Nominating and Corporate Governance Committee and approved by the disinterested directors of the Board.
	St. Cloud Investment. Based on a Schedule 13-G amendment filed with the Securities and Exchange Commission on February 14, 2012, St. Cloud Capital, LLC (St. Cloud) holds 700,538 shares of the Company’s voting common stock (approximately 2.0 percent of the Company's outstanding shares as of March 31, 2015). On November 24, 2014, the Bank invested as a limited partner in an affiliate of St. Cloud. The affiliate is St. Cloud Capital Partners III SBIC, LP (the Partnership), which applied for a license granted by the U.S. Small Business Administration to operate as a debenture Small Business Investment Company (SBIC) under the Small Business Investment Act of 1958 and the regulations promulgated thereunder. The Community Reinvestment Act of 1977 expressly identifies an investment by a bank in an SBIC as a type of investment that is presumed by the regulatory agencies to promote economic development.
	The Boards of Directors of the Company and the Bank approved the Bank’s investment. The Bank has agreed to invest a minimum of $5.0 million, but up to $7.5 million as long as the Bank’s limited partnership interest in the Partnership remains under 9.9 percent.
	Other affiliated funds of St. Cloud have previously invested in COR Securities Holdings, Inc., of which Mr. Sugarman is the Chief Executive Officer as well as a stockholder (both directly and indirectly). St. Cloud Capital Partners III SBIC, LP has provided oral representations to the Bank that the Partnership will not make any investments in COR Securities Holdings, Inc.
	CS Financial Acquisition. Certain relatives and entities affiliated with Mr. Sugarman received benefits as part of the CS Financial acquisition described in detail below under “—Transactions Involving Jeffrey T. Seabold.”
	Transactions Involving Jeffrey T. Seabold. The following is a description of transactions involving the Company and certain entities affiliated with Jeffrey T. Seabold, who currently is employed as Executive Vice President, Chief Banking Officer and previously served as a director of the Company and the Bank.
	CS Financial Acquisition. Effective October 31, 2013, the Company acquired CS Financial Inc. (CS Financial), a California corporation and Southern California-based mortgage banking firm controlled by Jeffrey T. Seabold and in which certain relatives and entities affiliated with Mr. Sugarman also owned certain minority, non-controlling interests. The following is a description of the transaction.
	CS Financial Services Agreement. On December 27, 2012, the Company entered into a Management Services Agreement (Services Agreement) with CS Financial. On December 27, 2012, Mr. Seabold was then a member of the Board of Directors of each of the Company and the Bank. Under the Services Agreement, CS Financial agreed to provide the Bank such reasonably requested financial analysis, management consulting, knowledge sharing, training services and general advisory services as the Bank and CS Financial mutually agreed upon with respect to the Bank’s residential mortgage lending business, including strategic plans and business objectives, compliance function, monitoring, reporting and related systems, and policies and procedures, at a monthly fee of $100 thousand. The Services Agreement was recommended by disinterested members of management of the Bank and negotiated and approved by special committees of the Board of Directors of each of the Company and the Bank (Special Committees), comprised exclusively of independent, disinterested directors of the Boards. Each of the Boards of Directors of the Bank and the Company also considered and approved the Services Agreement, upon the recommendation of the Special Committees.
	On May 13, 2013, the Bank hired Mr. Seabold as Managing Director and Chief Lending Officer by entering into a three-year employment agreement with Mr. Seabold (the 2013 Employment Agreement, which was amended and restated effective as of April 1, 2015 subsequent to Mr. Seabold's appointment as Chief Banking Officer). Simultaneously with entering into the 2013 Employment Agreement, the Bank terminated, with immediate effect, its Services Agreement with CS Financial. For the year ended December 31, 2013, the total compensation paid to CS Financial under the Services Agreement was $439 thousand.
	Option to Acquire CS Financial. Under the 2013 Employment Agreement, Mr. Seabold granted to the Company and the Bank an option (CS Call Option), to acquire CS Financial for a purchase price of $10.0 million, payable pursuant to the terms provided under the 2013 Employment Agreement. Based upon the recommendation of the Special Committees, with the assistance of outside financial and legal advisors and consultants, the Boards of Directors of the Company and the Bank, with Mr. Sugarman recusing himself from the discussions and vote due to previously disclosed conflicts of interest, approved the recommendation of the Special Committees and, pursuant to a letter dated July 29, 2013, the Company indicated that the CS Call Option was being exercised by the Bank, subject to the negotiation and execution of definitive transaction documentation consistent with the applicable provisions of the 2013 Employment Agreement and the satisfaction of the terms and conditions set forth therein.
	Merger Agreement. After exercise of the CS Call Option as described above, the Company and the Bank entered into an Agreement and Plan of Merger (Merger Agreement) with CS Financial, the stockholders of CS Financial (Sellers) and Mr. Seabold, as the Sellers’ Representative, and completed its acquisition of CS Financial on October 31, 2013.
	Subject to the terms and conditions set forth in the Merger Agreement, which was approved by the Board of Directors of each of the Company, the Bank and CS Financial, at the effective time of the Merger, the outstanding shares of common stock of CS Financial were converted into the right to receive in the aggregate: (1) upon the closing of the Merger, (a) 173,791 shares (Closing Date Shares) of voting common stock, par value $0.01 per share, of the Company, and (b) $1.5 million in cash and $3.2 million in the form of a noninterest-bearing note issued by the Company to Mr. Seabold that was due and paid by the Company on January 2, 2014; and (2) upon the achievement of certain performance targets by the Bank’s lending activities following the closing of the Merger that are set forth in the Merger Agreement, up to 92,781 shares (Performance Shares) of voting common stock ((1) and (2), together, Merger Consideration).
	Seller Stock Consideration. The Sellers under the Merger Agreement included Mr. Seabold, and the following relatives of Mr. Sugarman, Jason Sugarman (brother), Elizabeth Sugarman (sister-in-law), and Michael Sugarman (father), who each owned minority, non-controlling interests in CS Financial.
	Upon the closing of the Merger and pursuant to the terms of the Merger Agreement, the aggregate shares of voting common stock issued as the consideration to the Sellers was 173,791 shares, which was allocated by the Sellers and issued as follows: (i) 103,663 shares to Mr. Seabold; (ii) 16,140 shares to Jason Sugarman; (iii) 16,140 shares to Elizabeth Sugarman; (iv) 3,228 shares to Michael Sugarman; and (v) 34,620 shares to certain employees of CS Financial. Of the 103,663 shares to be issued to Mr. Seabold, as allowed under the Merger Agreement and in consideration of repayment of a certain debt incurred by CS Financial owed to an entity controlled by Elizabeth Sugarman, Mr. Seabold requested the Company to issue all 103,663 shares directly to Elizabeth Sugarman, and such shares were so issued by the Company to Elizabeth Sugarman.
	On October 31, 2014, certain of the Performance Shares were issued as follows: (i) 28,545 shares to Mr. Seabold; (ii) 1,082 shares to Jason Sugarman; (iii) 1,082 shares to Elizabeth Sugarman; and (iv) 216 shares to Michael Sugarman.
	Approval of the CS Call Option, Merger Agreement and Merger. All decisions and actions with respect to the exercise of the CS Agreement Option, the Merger Agreement and the Merger (including without limitation the determination of the Merger Consideration and the other material terms of the Merger Agreement) were subject to under the purview and authority of special committees of the Board of Directors of each of the Company and the Bank, each of which was composed exclusively of independent, disinterested directors of the Boards of Directors, with the assistance of outside financial and legal advisors. Mr. Sugarman abstained from the vote of each of the Boards of Directors of the Company and the Bank to approve the Merger Agreement and the Merger.
	Transactions Involving Halle J. Benett. Halle J. Benett, a director of the Company and the Bank, became employed as a Managing Director and Head of the Diversified Financials Group at Keefe, Bruyette & Woods, Inc., a Stifel company, on April 1, 2014. Since that date, Keefe, Bruyette & Woods, Inc. has acted as an underwriter of multiple underwritten public offerings of the Company’s securities, as described below.
	On May 21, 2014, the Company issued 5,150,000 shares of its voting common stock in an underwritten public offering and 772,500 shares of voting common stock upon the exercise in full by the underwriters of the underwritten public offering of their 30-day over-allotment option. Pursuant to an underwriting agreement with the Company entered into on May 15, 2014, Keefe, Bruyette & Woods, Inc., acted as one of the underwriters of the public offering and received gross underwriting fees and commissions from the Company of approximately $521 thousand for its services as an underwriter (less expenses, the amount was $481 thousand).
	On April 6, 2015, the Company issued $175.0 million aggregate principal amount of its 5.25 percent Senior Notes due April 15, 2025 in an underwritten public offering. Pursuant to a purchase agreement entered into with the Company on March 31, 2015, Keefe, Bruyette & Woods, Inc., acted as one of the underwriters of that offering and received gross underwriting fees and commissions from the Company of approximately $263 thousand for its services as an underwriter. See Note 21 for additional information.
	On April 8, 2015, the Company issued 4,000,000 depositary shares (Series D Depositary Shares) each representing 1/40th ownership interest in a share of 7.375 percent Non-Cumulative Perpetual Preferred Stock, Series D, with a liquidation preference of $1,000 per share (equivalent to $25 per depositary share) in an underwritten public offering and 600,000 Series D Depositary Shares upon the exercise in full by the underwriters of that offering of their 30-day over-allotment option. Pursuant to an underwriting agreement entered into with the Company on March 31, 2015, Keefe, Bruyette & Woods, Inc., acted as one of the underwriters of that offering and received gross underwriting fees and commissions from the Company of approximately $592 thousand for its services as an underwriter. See Note 21 for additional information.
	Transaction Involving Former Board Chair Timothy R. Chrisman. On May 15, 2014, the disinterested members of the Board of Directors of the Company approved a strategic advisor agreement with Chrisman & Co. pursuant to which Chrisman & Co. would provide strategic advisory services for the Company. Mr. Chrisman, who retired from the Company Board on May 15, 2014 upon the expiration of the term of his directorship after the Company’s 2014 Annual Meeting of Stockholders, is the Chief Executive Officer and founding principal of Chrisman & Co. The initial term of the strategic advisor agreement is for a period of one year and, thereafter, the agreement may be extended on a month-to-month basis. For services performed during the initial term, a fixed annual advisory fee of $200 thousand was paid to Chrisman & Co. during 2014 and no additional fees were paid during the three months ended March 31, 2015.
	Transactions with Greater Than 5 Percent Stockholders Who are Not Executive Officers
	Exchange Agreement with TCW Shared Opportunity Fund V, L.P. and its Assignees. TCW Shared Opportunity Fund V, L.P. (SHOP V Fund), an affiliate of The TCW Group, Inc., initially became a holder of the Company’s voting common stock and non-voting common stock as a lead investor in the November 2010 recapitalization of the Company (the Recapitalization). In connection with its investment in the Recapitalization, SHOP V Fund also was issued by the Company an immediately exercisable five-year warrant (the SHOP V Fund Warrant) to purchase 240,000 shares of non-voting common stock or, to the extent provided therein, shares of voting common stock in lieu of non-voting common stock. SHOP V Fund was issued shares of non-voting common stock in the Recapitalization because at that time, a controlling interest in TCW Asset Management Company, the investment manager to SHOP V Fund, was held by a foreign banking organization, and in order to prevent SHOP V Fund from being considered a bank holding company under the Bank Holding Company Act of 1956, as amended, the number of shares of voting common stock it purchased in the Recapitalization had to be limited to 4.99 percent of the total number of shares of voting common stock outstanding immediately following the Recapitalization. For the same reason, the SHOP V Fund Warrant could be exercised by SHOP V Fund for voting common stock in lieu of non-voting common stock only to the extent SHOP V Fund's percentage ownership of the voting common stock at the time of exercise would be less than 4.99 percent as a result of dilution occurring from additional issuances of voting common stock subsequent to the Recapitalization.
	In 2013, the foreign banking organization sold its controlling interest in TCW Asset Management Company, eliminating the need to limit SHOP V Fund's percentage ownership of the voting common stock to 4.99 percent. As a result, on May 29, 2013, the Company and SHOP V Fund entered into a Common Stock Share Exchange Agreement, dated May 29, 2013 (Exchange Agreement), pursuant to which SHOP V Fund may from time to time exchange its shares of non-voting common stock for shares of voting common stock issued by the Company on a share-for-share basis, provided that immediately following any such exchange, SHOP V Fund's percentage ownership of voting common stock does not exceed 9.99 percent. The shares of non-voting common stock that may be exchanged by SHOP V Fund pursuant to the Exchange Agreement include the shares of non-voting common stock it purchased in the Recapitalization, the additional shares of non-voting common stock SHOP V Fund acquired subsequent to the Recapitalization (and may in the future acquire) pursuant to the Company’s Dividend Reinvestment Plan and any additional shares of non-voting common stock that SHOP V Fund acquires pursuant to its exercise of the SHOP V Fund Warrant.
	On December 10, 2014, SHOP V Fund and two affiliated entities, Crescent Special Situations Fund Legacy V, L.P. (CSSF Legacy V) and Crescent Special Situations Fund Investor Group, L.P. (CSSF Investor Group), entered into a Contribution, Distribution and Sale Agreement pursuant to which SHOP V Fund agreed to transfer shares of non-voting common stock and portions of the SHOP V Fund Warrant to CSSF Legacy V and CSSF Investor Group. Also on December 10, 2014, SHOP V Fund, CSSF Legacy V, CSSF Investor Group and the Company entered into an Assignment and Assumption Agreement pursuant to which all of SHOP V Fund’s rights and obligations under the Exchange Agreement with respect to the shares of non-voting common stock transferred by it to CSSF Legacy V and CSSF Investor Group pursuant to the Contribution, Distribution and Sale Agreement were assigned to CSSF Legacy V and CSSF Investor Group, including the right of SHOP V Fund to exchange such shares for shares of voting common stock on a one-for-one basis.
	On June 3, 2013, January 5, 2015, January 20, 2015, and March 16, 2015, SHOP V Fund or CSSF Legacy V or CSSF Investor Group exchanged 550,000 shares, 522,564 shares, 86,620 shares, and 934 shares, respectively, of non-voting common stock for the same number of shares of voting common stock. As a result of these exchanges, the Company believes that as of March 31, 2015 The TCW Group, Inc. and its affiliates held 1,688,580 shares of voting common stock and no shares of non-voting common stock, plus the SHOP V Fund Warrant under which up to 240,000 shares of non-voting common stock may be issued upon exercise and may thereafter be exchanged for shares of voting common stock pursuant to the Exchange Agreement.
	Securities Purchase Agreement with Patriot Financial Partners, L.P. and Patriot Financial Partners Parallel, L.P. As reported in a Schedule 13-D amendment filed on November 10, 2014 with the SEC, Patriot Financial Partners, L.P and Patriot Financial Partners Parallel, L.P. (Patriot) hold 3,100,564 shares of the Company’s voting common stock. Certain of these shares were sold by the Company pursuant to a securities purchase agreement, as described further below. On April 22, 2014, the Company entered into a Securities Purchase Agreement (SPA) with Patriot to raise a portion of the capital to be used to finance the previously announced 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 (BPNA Branch Acquisition). The SPA with Patriot was due to expire by its terms on October 31, 2014. Prior to such expiration, the Company and Patriot Financial Partners, L.P., Patriot Financial Partners Parallel, L.P., Patriot Financial Partners II, L.P. and Patriot Financial Partners Parallel II, L.P. (together referred to as Patriot Partners) entered into a Securities Purchase Agreement, dated as of October 30, 2014 (New SPA). Pursuant to the New SPA, substantially concurrently with the Bank's BPNA Branch Acquisition, which closed on November 8, 2014, 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’s 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 an equity support payment of $538 thousand and also reimbursed Patriot $100 thousand in out-of-pocket expenses.
	On October 30, 2014, concurrent with the execution of the New SPA, Patriot and the Company entered into a Settlement Agreement and Release (the 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 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 Settlement Agreement and ending on December 31, 2016, that neither Patriot nor the Company would disparage the other party or its affiliates.
	Patriot also agreed for the period beginning on the date of the Settlement Agreement and ending on December 31, 2016, 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.
	Agreement with Oaktree Capital Management. As reported in a Schedule 13-G filed with the SEC on January 16, 2015, OCM BOCA Investor, LLC (OCM), an affiliate of Oaktree Capital Management, L.P., owns 3,288,947 shares of the Company’s voting common stock. OCM purchased these 3,288,947 shares of voting common stock (representing 9.9 percent of total shares outstanding as of the dates set forth in the Schedule 13-G) from the Company on November 7, 2014 at a price of $9.78 per share pursuant to a securities purchase agreement entered into on April 22, 2014 (and amended on October 28, 2014) in order for the Company to raise a portion of the capital needed for the BPNA Branch Acquisition, which was completed on November 8, 2014. In consideration for its commitment under the securities purchase agreement, OCM was paid at closing an equity support payment from the Company of $1.6 million.
	Before OCM became a stockholder, The Palisades Group, and certain affiliates of Oaktree Capital Management, L.P. (collectively, the Oaktree Funds), entered into a management agreement, effective as of January 30, 2014 (Management Agreement), pursuant to which The Palisades Group serves as the credit manager of pools of single family residential mortgage loans held in securitization trusts or other vehicles beneficially owned by the Oaktree Funds. The Palisades Group is paid a monthly management fee primarily based on the amount of certain designated pool assets and may earn additional fees for advice related to financing opportunities. Payments under the Management Agreement to The Palisades Group during 2014 totaled $5.3 million and for the three months ended March 31, 2015 totaled $984 thousand, which in some instances represents fees for partial year services. In addition, in the future and from time to time the Bank may enter into lending transactions with portfolio companies of investment funds managed by Oaktree Capital Management, L.P.

SUBSEQUENT_EVENTS

SUBSEQUENT EVENTS	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS
	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 II and, together with the Senior Notes I, the Senior Notes). Net proceeds after discounts were approximately $172.8 million.
	The Senior Notes were issued under the Senior Debt Securities Indenture, dated as of April 23, 2012 (the Base Indenture), as supplemented by the First Supplemental Indenture, dated as of April 23, 2012 for the Senior Notes I and the Second Supplemental Indenture, dated as of April 6, 2015 for the Senior Notes II (the Supplemental Indentures and, together with the Base Indenture, the Indenture), between the Company and U.S. Bank National Association, as trustee.
	The Senior Notes are the Company’s unsecured, unsubordinated debt obligations and rank equally in right of payment with all of the Company’s other existing and future unsubordinated indebtedness. The Senior Notes II bear interest at a per-annum rate of 5.25 percent. The Company is required to make interest payments on the Senior Notes II semi-annually in arrears on April 15 and October 15 of each year, beginning on October 15, 2015.
	The Senior Notes II will mature on April 15, 2025. However, the Company may, at the Company’s option, on or after January 15, 2025, redeem the Senior Notes II in whole at any time or in part from time to time, on not less than 30 nor more than 60 days’ prior notice. The Senior Notes II 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 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.
	On April 8, 2015, the Company completed the issuance and sale of 4,000,000 depositary shares, each representing a 1/40th interest in a share of its 7.375 percent Non-Cumulative Perpetual Preferred Stock, Series D, liquidation preference of $1,000 per share (equivalent to $25.00 per depositary share), for gross proceeds of $96.9 million. The Company also granted the underwriters a 30-day option to purchase up to an additional 600,000 depositary shares to cover over-allotments, which the underwriters exercised in full concurrently, resulting in additional gross proceeds of $14.5 million.
	Management has evaluated subsequent events through the date of issuance of the financial data included herein. Other than the events disclosed above, there have been no subsequent events occurred during such period that would require disclosure in this report or would be required to be recognized in the Consolidated Financial Statements (Unaudited) as of March 31, 2015.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation: The accompanying unaudited consolidated financial statements include the accounts of Banc of California, Inc. (collectively, with its consolidated subsidiaries, the Company, we, us and our) and its wholly owned subsidiaries, Banc of California, National Association (the Bank), The Palisades Group, LLC (the Palisades Group), and PTB Property Holdings, LLC (PTB), as of March 31, 2015 and December 31, 2014 and for the three months ended March 31, 2015 and 2014. Significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, all references to the Company include its wholly owned subsidiaries.
Basis of Presentation	Basis of Presentation: The accompanying unaudited interim consolidated financial statements have been prepared pursuant to the rules and regulations for reporting on Form 10-Q. Accordingly, certain disclosures required by 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, 2014 filed by the Company with the Securities and Exchange Commission. The December 31, 2014 balance sheet 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, 2014 filed with the Securities and Exchange Commission, but does not include all of the disclosures required by GAAP.
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 position and consolidated results of operations for the periods presented. Certain reclassifications have been made in the prior period financial statements to conform to the current period presentation.
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, reserve for loss on repurchased loans, servicing rights, realization of deferred tax assets, the valuation of goodwill and other intangible assets, mortgage banking derivatives, purchased credit impaired loan discount accretion, 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.
Income Taxes	Income Taxes: Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance is established when necessary to reduce deferred tax assets when it is more-likely-than-not that a portion or all of the net deferred tax assets will not be realized.
Allowance for Loan and Lease Losses	Allowance for Loan and Lease Losses: During the year ended December 31, 2014, the Company enhanced the methodologies, processes and controls over the allowance for loan and lease losses (ALLL), due to the Company's organic and acquisitive growth and changing profile.
	The following is a synopsis of the enhancements for each component of ALLL:
	•	Expand the look-back period to 28 rolling quarters to capture the full economic cycle.
	•	Utilize net historical losses versus gross historical losses.
	•	Expand the peer group used to determine industry average loss history to include three industry groups; i) all U.S. financial and bank holding companies, ii) all California financial and bank holding companies, iii) the peer group average from the Uniform Bank Performance Report.
	•	Apply the segment specific loss emergence period to each segment's loss.
	•	Determine qualitative reserves at each loan segment level based on a baseline risk weighting adjusted for current risks, trends and business conditions.
	•	Disaggregate certain qualitative factors to be determined on the portfolio segment level.
Accounting Pronouncements	In January 2014, the FASB issued ASU No. 2014-04, “Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure.” ASU 2014-04 clarifies that an in substance repossession or foreclosure has occurred, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure. Interim and annual disclosure is required of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. ASU 2014-04 is effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. Adoption of the new guidance did not have a significant impact on the Company’s consolidated financial statements.
	In May 2014, the FASB issued ASU No. 2014-09, “Revenue From Contracts With Customers,” which 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 ASU 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. The ASU 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. Entities have the option of using either a full retrospective or a modified retrospective approach for the adoption of the new standard. The ASU becomes effective for Company at the beginning of its 2017 fiscal year; early adoption is not permitted. The Company is in the process of evaluating the impact that adoption of this guidance may have on its consolidated financial statements.
	In June 2014, the FASB issued ASU No. 2014-11, “Transfers and Servicing: Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures.” The ASU changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting. In addition, for repurchase financing arrangements, the amendments require separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting for the repurchase agreement. The ASU also requires disclosures for certain transactions comprising (1) a transfer of a financial asset accounted for as a sale and (2) an agreement with the same transferee entered into in contemplation of the initial transfer that results in the transferor retaining substantially all of the exposure to the economic return on the transferred financial asset throughout the term of the transaction. There are additional disclosure requirements for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings. Adoption of the new guidance did not have a significant impact on the Company’s consolidated financial statements.
	In June 2014, the FASB issued ASU No. 2014-12, “Compensation—Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period.” The ASU requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply existing guidance in Topic 718 as it relates to awards with performance conditions that affect vesting to account for such awards. As such, the performance target should not be reflected in estimating the grant-date fair value of the award. The Company is in the process of evaluating the impact that adoption of this guidance may have on its consolidated financial statements.
	In August 2014, the FASB issued ASU 2014-14, “Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40), Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure.” Under ASU 2014-14, a mortgage loan should be derecognized and a separate receivable based on the principal and interest expected to be recovered from the governmental guarantor should be recognized upon foreclosure when all of the following conditions exist: a government guarantee exists that is not separable from the loan prior to the foreclosure; as of the date of the foreclosure the creditor has the intent to convey the real estate to the governmental agency that issued the guarantee, to make a claim on the guarantee and the creditor has the ability to recover amounts due from the governmental entity as a result of the claim; and, as of the time of the foreclosure, the claim amount that is based on the fair value of the real estate is fixed. ASU 2014-14 is effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014. Adoption of the new guidance did not have a significant impact on the Company’s consolidated financial statements.
	In January 2014, the FASB issued guidance within Accounting Standards Update (ASU) 2014-01, “Accounting for Investments in Qualified Affordable Housing Projects," which amends ASC 323-720 to permit entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. The Company invests in qualified affordable housing projects (affordable housing fund investments) and previously accounted for them under the equity method of accounting. The Company recognized its share of partnership losses in noninterest expense with the tax benefit recognized in the income tax provision. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments are effective for fiscal years, and interim periods within those years, beginning after December 31, 2014 and should be applied retrospectively to all periods presented.

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Schedule of Changes in Accounting Policies	The following tables present the effect of the retrospective application of this change in accounting principle on the Company’s Consolidated Statements of Financial Condition, Consolidated Statements of Operations and Consolidated Statement of Cash Flows for the respective periods:
	BANC OF CALIFORNIA, INC.
	CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION
	(Unaudited)
		31-Dec-14
		As Previously Reported			Effect of Change in Accounting Principle			As Adjusted
		(In thousands)
	Assets
	Cash and cash equivalents	$	231,199		$	—		$	231,199
	Time deposits in financial institutions	1,900			—			1,900
	Securities available for sale	345,695			—			345,695
	Loans held for sale	1,187,090			—			1,187,090
	Loans and leases receivable	3,919,642			—			3,919,642
	Deferred income tax	16,445			(72		)	16,373
	Other assets	269,600			(202		)	269,398
	Total assets	$	5,971,571		$	(274	)	$	5,971,297
	Liabilities and stockholders' equity
	Liabilities	$	5,467,982		$	—		$	5,467,982
	Stockholders' equity	503,589			(274		)	503,315
	Total liabilities and stockholders' equity	$	5,971,571		$	(274	)	$	5,971,297
	BANC OF CALIFORNIA, INC.
	CONSOLIDATED STATEMENTS OF OPERATIONS
	(Unaudited)
		Three Months Ended March 31, 2014
		As Previously Reported			Effect of Change in Accounting Principle			As Adjusted
		(In thousands, except per share data)
	Interest and dividend income	$	42,776		$	—		$	42,776
	Interest expense	7,591			—			7,591
	Net interest income	35,185			—			35,185
	Provision for loan and lease losses	1,929			—			1,929
	Noninterest income	25,278			—			25,278
	Noninterest expense	57,768			(174		)	57,594
	Income before income taxes	766			174			940
	Income tax expense	9			182			191
	Net income	757			(8		)	749
	Preferred stock dividends	910			—			910
	Net loss available for common stockholders	$	(153	)	$	(8	)	$	(161	)
	Basic earnings for total common stockholders	$	(0.01	)	$	—		$	(0.01	)
	Diluted earnings (loss) per total common share	$	(0.01	)	$	—		$	(0.01	)
	BANC OF CALIFORNIA, INC.
	CONSOLIDATED STATEMENTS OF CASH FLOWS
	(Unaudited)
		Three Months Ended March 31, 2014
		As Previously Reported			Effect of Change in Accounting Principle			As Adjusted
		(In thousands)
	Cash flow from operating activities
	Net income	$	757		$	(8	)	$	749
	Total adjustment in net income	(268,684		)	8			(268,676		)
	Net cash used in operating activities	(267,927		)	—			(267,927		)
	Cash flow from investing activities
	Net cash provided by investing activities	88,474			—			88,474
	Cash flow from financing activities
	Net cash provided by financing activities	402,974			—			402,974
	Net increase in cash and cash equivalents	223,521			—			223,521
	Cash and cash equivalents at beginning of period	110,118						110,118
	Cash and cash equivalents at end of period	$	333,639		$	—		$	333,639

BUSINESS_COMBINATIONS_Tables

BUSINESS COMBINATIONS (Tables)	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Summary of Acquired Assets and Assumed Liabilities Along with Summary of Acquisition Consideration as of Dates of Acquisition	The following table presents a summary of acquired assets and assumed liabilities along with a summary of the acquisition consideration as of the dates of acquisition:
		Acquisition and Date Acquired
		Banco Popular Branches			Renovation
					Ready
		8-Nov-14			January 31,
					2014
		(In thousands)
	Assets acquired:
	Cash and due from banks	$	5,532		$	—
	Loans and leases receivable	1,072,449			—
	Premises, equipment, and capital leases	9,002			—
	Goodwill	—			2,239
	Other intangible assets	15,777			761
	Other assets	2,301			—
	Total assets acquired	$	1,105,061		$	3,000
	Liabilities assumed:
	Deposits	$	1,076,614		$	—
	Other liabilities	506			1,000
	Total liabilities assumed	1,077,120			1,000
	Total consideration paid	$	27,941		$	2,000
	Summary of consideration
	Cash paid	$	27,941		$	1,000
	Common stock issued	—			1,000
	Earn-out liabilities	—			1,000
	The following table summarizes the total consideration transferred as part of the BPNA Branch Acquisition as well as the fair value adjustments to the net assets acquired as of the acquisition date:
		8-Nov-14
		(In thousands)
	Total Consideration				$	27,941
	Net assets pre-acquisition				24,027
	Fair value adjustments
	Loans receivable	$	(12,165	)
	Core deposit intangibles	15,777
	Certificates of deposit purchase premium	(916		)
	Premises and equipment	1,218
	Total fair value adjustments				3,914
	Fair value of net assets acquired				27,941
	Net fair value in excess of consideration				$	—

FAIR_VALUES_OF_FINANCIAL_INSTR1

FAIR VALUES OF FINANCIAL INSTRUMENTS (Tables)	3 Months Ended
	Mar. 31, 2015
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
		Carrying			Quoted Prices			Significant		Significant
		Value			in Active Markets			Other		Unobservable
					for Identical			Observable		Inputs
					Assets			Inputs		(Level 3)
					(Level 1)			(Level 2)
		(In thousands)
	31-Mar-15
	Assets
	Available for sale securities:
	SBA loan pools securities	$	1,635		$	—		$	1,635	$	—
	U.S. government-sponsored entities and agency securities	2,001			—			2,001		—
	Private label residential mortgage-backed securities	2,615			—			2,615		—
	Agency mortgage-backed securities	387,335			—			387,335		—
	Loans held for sale	355,746			—			355,746		—
	Derivative assets (1)	13,555			—			13,555		—
	Mortgage servicing rights (2)	21,165			—			—		21,165
	Liabilities
	Derivative liabilities (3)	4,552			—			4,552		—
	31-Dec-14
	Assets
	Available for sale securities:
	SBA loan pools securities	$	1,715		$	—		$	1,715	$	—
	U.S. government-sponsored entities and agency securities	1,982			—			1,982		—
	Private label residential mortgage-backed securities	3,168			—			3,168		—
	Agency mortgage-backed securities	338,830			—			338,830		—
	Loans held for sale	278,749			—			278,749		—
	Derivative assets (1)	6,379			—			6,379		—
	Mortgage servicing rights (2)	19,082			—			—		19,082
	Liabilities
	Derivative liabilities (3)	3,235			—			3,235		—
	-1	Included in Other Assets on the Consolidated Statements of Financial Condition
	-2	Included in Servicing Rights, Net and Servicing Rights Held For Sale on the Consolidated Statements of Financial Condition
	-3	Included in Accrued Expenses and Other Liabilities on 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
		Carrying			Quoted Prices			Significant		Significant
		Value			in Active Markets			Other		Unobservable
					for Identical			Observable		Inputs
					Assets			Inputs		(Level 3)
					(Level 1)			(Level 2)
		(In thousands)
	31-Mar-15
	Assets
	Available for sale securities:
	SBA loan pools securities	$	1,635		$	—		$	1,635	$	—
	U.S. government-sponsored entities and agency securities	2,001			—			2,001		—
	Private label residential mortgage-backed securities	2,615			—			2,615		—
	Agency mortgage-backed securities	387,335			—			387,335		—
	Loans held for sale	355,746			—			355,746		—
	Derivative assets (1)	13,555			—			13,555		—
	Mortgage servicing rights (2)	21,165			—			—		21,165
	Liabilities
	Derivative liabilities (3)	4,552			—			4,552		—
	31-Dec-14
	Assets
	Available for sale securities:
	SBA loan pools securities	$	1,715		$	—		$	1,715	$	—
	U.S. government-sponsored entities and agency securities	1,982			—			1,982		—
	Private label residential mortgage-backed securities	3,168			—			3,168		—
	Agency mortgage-backed securities	338,830			—			338,830		—
	Loans held for sale	278,749			—			278,749		—
	Derivative assets (1)	6,379			—			6,379		—
	Mortgage servicing rights (2)	19,082			—			—		19,082
	Liabilities
	Derivative liabilities (3)	3,235			—			3,235		—
	-1	Included in Other Assets on the Consolidated Statements of Financial Condition
	-2	Included in Servicing Rights, Net and Servicing Rights Held For Sale on the Consolidated Statements of Financial Condition
	-3	Included in Accrued Expenses and Other Liabilities on 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) for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Mortgage servicing rights
	Balance at beginning of period	$	19,082		$	13,535
	Transfers out of Level 3 (1)	—			(9,185		)
	Total gains or losses (realized/unrealized):
	Included in earnings—realized	—			—
	Included in earnings—fair value adjustment	(528		)	315
	Included in other comprehensive income	—			—
	Amortization of premium (discount)	—			—
	Additions	10,192			4,326
	Sales and settlements	(7,581		)	(584		)
	Balance at end of period	$	21,165		$	8,407
	-1	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 cause the transfer.
Quantitative Information About Level 3 Fair Value Measurements	The following table presents quantitative information about Level 3 fair value measurements on a recurring basis as of the dates indicated:
		Fair Value			Valuation Technique(s)		Unobservable Input(s)	Range (Weighted Average)
		(In thousands)
	31-Mar-15
	Mortgage servicing rights	$	21,165		Discounted cash flow		Discount rate	9.00% to 13.20% (9.84%)
							Prepayment rate	5.15% to 34.28% (12.98%)
	31-Dec-14
	Mortgage servicing rights	$	13,135		Discounted cash flow		Discount rate	9.00% to 19.50% (10.09%)
							Prepayment rate	4.59% to 31.02% (13.22%)
	31-Mar-14
	Mortgage servicing rights	$	8,407		Discounted cash flow		Discount rate	10.00% to 17.89% (10.81%)
							Prepayment rate	3.92% to 34.54% (13.17%)
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
		Carrying			Quoted Prices			Significant		Significant
		Value			in Active Markets			Other		Unobservable
					for Identical			Observable		Inputs
					Assets			Inputs		(Level 3)
					(Level 1)			(Level 2)
		(In thousands)
	31-Mar-15
	Assets
	Impaired loans:
	Single family residential mortgage	$	5,065		$	—		$	—	$	5,065
	Commercial and industrial	4,134			—			—		4,134
	Other real estate owned:
	Single family residential	498			—			—		498
	31-Dec-14
	Assets
	Impaired loans:
	Single family residential mortgage	$	6,206		$	—		$	—	$	6,206
	Commercial and industrial	4,313			—			—		4,313
	SBA servicing rights	484			—			—		484
	Other real estate owned:
	Single family residential	423			—			—		423
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
		March 31,
		2015			2014
		(In thousands)
	Impaired loans:
	Single family residential mortgage	$	—		$	(151	)
	Other consumer	—			(2		)
	Other real estate owned:
	Single family residential	(5		)	—
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 as of the dates indicated:
		Carrying			Fair Value Measurement Level
		Amount			Level 1			Level 2		Level 3		Total
		(In thousands)
	31-Mar-15
	Financial assets
	Cash and cash equivalents	$	265,402		$	265,402		$	—	$	—	$	265,402
	Time deposits in financial institutions	1,900			1,900			—		—		1,900
	Securities available for sale	393,586			—			393,586		—		393,586
	FHLB and other bank stock	39,844			—			39,844		—		39,844
	Loans held for sale	1,240,942			—			1,249,370		—		1,249,370
	Loans and leases receivable, net of allowance	3,904,370			—			—		4,008,008		4,008,008
	Accrued interest receivable	14,970			14,970			—		—		14,970
	Derivative assets	13,555			—			13,555		—		13,555
	Financial liabilities
	Deposits	4,861,992			—			—		4,719,344		4,719,344
	Advances from Federal Home Loan Bank	545,000			—			545,195		—		545,195
	Other borrowings	15,000			—			15,000		—		15,000
	Notes payable	92,668			86,750			12,102		—		98,852
	Derivative liabilities	4,552			—			4,552		—		4,552
	Accrued interest payable	2,016			2,016			—		—		2,016
	31-Dec-14
	Financial assets
	Cash and cash equivalents	$	231,199		$	231,199		$	—	$	—	$	231,199
	Time deposits in financial institutions	1,900			1,900			—		—		1,900
	Securities available for sale	345,695			—			345,695		—		345,695
	FHLB and other bank stock	42,241			—			42,241		—		42,241
	Loans held for sale	1,187,090			—			1,195,834		—		1,195,834
	Loans and leases receivable, net of allowance	3,919,642			—			—		4,045,465		4,045,465
	Accrued interest receivable	15,113			15,113			—		—		15,113
	Derivative assets	6,379			—			6,379		—		6,379
	Financial liabilities
	Deposits	4,671,831			—			—		4,575,264		4,575,264
	Advances from Federal Home Loan Bank	633,000			—			633,083		—		633,083
	Notes payable	93,569			87,428			13,360		—		100,788
	Derivative liabilities	3,235			—			3,235		—		3,235
	Accrued interest payable	2,044			2,044			—		—		2,044

SECURITIES_AVAILABLE_FOR_SALE_

SECURITIES AVAILABLE FOR SALE (Tables)	3 Months Ended
	Mar. 31, 2015
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 available for sale investment securities portfolio and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of the dates indicated:
		Amortized			Gross			Gross			Fair
		Cost			Unrealized			Unrealized			Value
					Gains			Losses
		(In thousands)
	31-Mar-15
	Available for sale
	SBA loan pool securities	$	1,600		$	35		$	—		$	1,635
	U.S. government-sponsored entities and agency securities	1,943			58			—			2,001
	Private label residential mortgage-backed securities	2,607			11			(3		)	2,615
	Agency mortgage-backed securities	383,287			4,224			(176		)	387,335
	Total securities available for sale	$	389,437		$	4,328		$	(179	)	$	393,586
	31-Dec-14
	Available for sale
	SBA loan pool securities	$	1,697		$	18		$	—		$	1,715
	U.S. government-sponsored entities and agency securities	1,940			42			—			1,982
	Private label residential mortgage-backed securities	3,169			12			(13		)	3,168
	Agency mortgage-backed securities	338,072			1,363			(605		)	338,830
	Total securities available for sale	$	344,878		$	1,435		$	(618	)	$	345,695
Summary of Amortized Cost and Fair Value of Available-for-Sale Investment Securities Portfolio by Maturity Date	The following table presents amortized cost and fair value of the available for sale investment securities portfolio by expected maturity. In the case of mortgage-backed securities and SBA loan pool securities, expected maturities may differ from contractual maturities because borrowers generally have the right to call or prepay obligations with or without call or prepayment penalties. For that reason, mortgage-backed securities and SBA loan pool securities are not included in the maturity categories.
		31-Mar-15
		Amortized			Fair
		Cost			Value
		(In thousands)
	Maturity:
	Within one year	$	—		$	—
	One to five years	1,943			2,001
	Five to ten years	—			—
	Greater than ten years	—			—
	SBA loan pool, private label residential mortgage-backed and agency mortgage-backed securities	387,494			391,585
	Total	$	389,437		$	393,586
Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses	The following table presents proceeds from sales and calls of securities and the associated gross gains and losses realized through earnings upon the sale of available for sale securities for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Gross realized gains on sales of securities available for sale	$	—		$	545
	Gross realized losses on sales of securities available for sale	(2		)	(38		)
	Net realized gains (losses) on sales of securities available for sale	$	(2	)	$	507
	Proceeds from sales of securities available for sale	$	174		$	50,973
	Tax benefit on sales of securities available for sale	$	(1	)	$	—
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
		Fair			Gross			Fair			Gross			Fair		Gross
		Value			Unrealized			Value			Unrealized			Value		Unrealized
					Losses						Losses					Losses
		(In thousands)
	31-Mar-15
	Available for sale
	Private label residential mortgage-backed securities	$	176		$	(1	)	$	850		$	(2	)	$	1,026	$	(3	)
	Agency mortgage-backed securities	33,682			(111		)	11,336			(65		)	45,018		(176		)
	Total securities available for sale	$	33,858		$	(112	)	$	12,186		$	(67	)	$	46,044	$	(179	)
	31-Dec-14
	Available for sale
	Private label residential mortgage-backed securities	$	372		$	(9	)	$	1,355		$	(4	)	$	1,727	$	(13	)
	Agency mortgage-backed securities	68,200			(332		)	22,212			(273		)	90,412		(605		)
	Total securities available for sale	$	68,572		$	(341	)	$	23,567		$	(277	)	$	92,139	$	(618	)

LOANS_AND_LEASES_AND_ALLOWANCE1

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Tables)	3 Months Ended
	Mar. 31, 2015
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:
		Non-Traditional				Traditional				Total NTM				Purchased				Total Loans
		Mortgages				Loans				and				Credit Impaired				and Leases
		(NTM)								Traditional								Receivable
										Loans
		($ in thousands)
	31-Mar-15
	Commercial:
	Commercial and industrial	$	—			$	488,150			$	488,150			$	1,079			$	489,229
	Commercial real estate	—				965,302				965,302				10,432				975,734
	Multi-family	—				940,053				940,053				—				940,053
	SBA	—				45,118				45,118				3,136				48,254
	Construction	—				38,081				38,081				—				38,081
	Lease financing	—				102,012				102,012				—				102,012
	Consumer:
	Single family residential mortgage	229,006				593,019				822,025				227,151				1,049,176
	Green Loans (HELOC) - first liens	119,958				—				119,958				—				119,958
	Green Loans (HELOC) - second liens	4,748				—				4,748				—				4,748
	Other consumer	113				166,357				166,470				—				166,470
	Total gross loans and leases	$	353,825			$	3,338,092			$	3,691,917			$	241,798			$	3,933,715
	Percentage to total gross loans and leases	9		%		84.9		%		93.9		%		6.1		%		100		%
	Allowance for loan and lease losses																	(29,345		)
	Loans and leases receivable, net																	$	3,904,370
	31-Dec-14
	Commercial:
	Commercial and industrial	$	—			$	489,766			$	489,766			$	1,134			$	490,900
	Commercial real estate	—				988,330				988,330				11,527				999,857
	Multi-family	—				955,683				955,683				—				955,683
	SBA	—				32,998				32,998				3,157				36,155
	Construction	—				42,198				42,198				—				42,198
	Lease financing	—				85,749				85,749				—				85,749
	Consumer:
	Single family residential mortgage	222,306				595,100				817,406				231,079				1,048,485
	Green Loans (HELOC) - first liens	123,177				—				123,177				—				123,177
	Green Loans (HELOC) - second liens	4,979				—				4,979				—				4,979
	Other consumer	113				161,826				161,939				—				161,939
	Total gross loans and leases	$	350,575			$	3,351,650			$	3,702,225			$	246,897			$	3,949,122
	Percentage to total gross loans and leases	8.9		%		84.8		%		93.7		%		6.3		%		100		%
	Allowance for loan and lease losses																	(29,480		)
	Loans and leases receivable, net																	$	3,919,642
Non Traditional Mortgages Portfolio	The following table presents the composition of the NTM portfolio as of the dates indicated:
		31-Mar-15										31-Dec-14
		Count			Amount				Percent			Count			Amount				Percent
		($ in thousands)
	Green Loans (HELOC) - first liens	147			$	119,958			33.9	%		148			$	123,177			35.1	%
	Interest-only - first liens	204			216,765				61.2	%		207			209,207				59.7	%
	Negative amortization	31			12,241				3.5	%		32			13,099				3.7	%
	Total NTM - first liens	382			348,964				98.6	%		387			345,483				98.5	%
	Green Loans (HELOC) - second liens	19			4,748				1.3	%		19			4,979				1.4	%
	Interest-only - second liens	1			113				0.1	%		1			113				0.1	%
	Total NTM - second liens	20			4,861				1.4	%		20			5,092				1.5	%
	Total NTM loans	402			$	353,825			100	%		407			$	350,575			100	%
	Total gross loan portfolio				$	3,933,715									$	3,949,122
	% of NTM to total gross loan portfolio				9		%								8.9		%
Risk Categories for Loans and Leases	The following table presents the Company’s NTM Green Loans first lien portfolio at March 31, 2015 and December 31, 2014 by FICO scores:
		31-Mar-15										31-Dec-14										Change
		Count			Amount				Percent			Count			Amount				Percent			Count			Amount				Percent
		($ in thousands)
	FICO Score
	800+	28			$	19,448			16.2	%		28			$	20,248			16.4	%		—			$	(800	)		(0.2	)%
	700-799	72			50,769				42.3	%		72			52,532				42.7	%		—			(1,763		)		(0.4	)%
	600-699	28			30,431				25.4	%		29			31,053				25.2	%		(1	)		(622		)		0.2	%
	<600	8			11,873				9.9	%		8			11,893				9.7	%		—			(20		)		0.2	%
	No FICO	11			7,437				6.2	%		11			7,451				6	%		—			(14		)		0.2	%
	Totals	147			$	119,958			100	%		148			$	123,177			100	%		(1	)		$	(3,219	)		—	%
	The table below represents the Company’s single family residential NTM first lien portfolio by loan-to-value (LTV) as of the dates indicated:
		Green										Interest Only										Negative Amortization										Total
		Count			Amount				Percent			Count			Amount				Percent			Count			Amount				Percent			Count		Amount			Percent
		($ in thousands)
	LTV’s (1)
	31-Mar-15
	< 61	77			$	56,136			46.7	%		60			$	99,152			45.8	%		15			$	5,960			48.7	%		152		$	161,248		46.2	%
	61-80	45			46,129				38.5	%		52			83,480				38.5	%		12			5,312				43.4	%		109		134,921			38.7	%
	81-100	18			11,833				9.9	%		33			15,463				7.1	%		3			579				4.7	%		54		27,875			8	%
	> 100	7			5,860				4.9	%		59			18,670				8.6	%		1			390				3.2	%		67		24,920			7.1	%
	Total	147			$	119,958			100	%		204			$	216,765			100	%		31			$	12,241			100	%		382		$	348,964		100	%
	31-Dec-14
	< 61	77			$	58,856			47.8	%		60			$	93,254			44.7	%		15			$	6,023			46	%		152		$	158,133		45.8	%
	61-80	45			46,177				37.5	%		54			81,472				38.9	%		12			5,901				45	%		111		133,550			38.6	%
	81-100	18			11,846				9.6	%		33			14,927				7.1	%		4			781				6	%		55		27,554			8	%
	> 100	8			6,298				5.1	%		60			19,554				9.3	%		1			394				3	%		69		26,246			7.6	%
	Total	148			$	123,177			100	%		207			$	209,207			100	%		32			$	13,099			100	%		387		$	345,483		100	%
	-1	LTV represents estimated current loan to value ratio, determined by dividing current unpaid principal balance by latest estimated property value received per the Company policy.
	The following table presents the risk categories for loans and leases as of March 31, 2015:
		31-Mar-15
		Pass				Special				Substandard				Doubtful				Not-Rated				Total
						Mention
		(In thousands)
	NTM loans:
	Single family residential mortgage	$	224,683			$	2,041			$	2,282			$	—			$	—			$	229,006
	Green Loans (HELOC) - first liens	100,428				3,056				16,173				301				—				119,958
	Green Loans (HELOC) - second liens	4,748				—				—				—				—				4,748
	Other consumer	113				—				—				—				—				113
	Total NTM loans	329,972				5,097				18,455				301				—				353,825
	Traditional loans and leases:
	Commercial:
	Commercial and industrial	476,344				106				11,700				—				—				488,150
	Commercial real estate	926,109				14,099				25,094				—				—				965,302
	Multi-family	919,956				5,974				14,123				—				—				940,053
	SBA	44,301				—				817				—				—				45,118
	Construction	38,081				—				—				—				—				38,081
	Lease financing	101,285				64				663				—				—				102,012
	Consumer:
	Single family residential mortgage	557,947				15,848				19,224				—				—				593,019
	Other consumer	166,243				78				36				—				—				166,357
	Total traditional loans and leases	3,230,266				36,169				71,657				—				—				3,338,092
	PCI loans:
	Commercial:
	Commercial and industrial	92				—				987				—				—				1,079
	Commercial real estate	5,700				974				3,758				—				—				10,432
	SBA	364				346				2,426				—				—				3,136
	Consumer:
	Single family residential mortgage	—				—				255				—				226,896				227,151
	Total PCI loans	6,156				1,320				7,426				—				226,896				241,798
	Total	$	3,566,394			$	42,586			$	97,538			$	301			$	226,896			$	3,933,715
	The following table presents the risk categories for loans and leases as of December 31, 2014:
		31-Dec-14
		Pass				Special				Substandard				Doubtful				Not-Rated				Total
Mention
	(In thousands)
NTM loans:
Single family residential mortgage	$	219,747			$	279			$	2,280			$	—			$	—			$	222,306
Green Loans (HELOC) - first liens	104,640				399				18,138				—				—				123,177
Green Loans (HELOC) - second liens	4,770				—				209				—				—				4,979
Other consumer	113				—				—				—				—				113
Total NTM loans	329,270				678				20,627				—				—				350,575
Traditional loans and leases:
Commercial:
Commercial and industrial	477,319				117				12,330				—				—				489,766
Commercial real estate	943,645				14,281				30,404				—				—				988,330
Multi-family	932,438				6,684				16,561				—				—				955,683
SBA	32,171				—				827				—				—				32,998
Construction	42,198				—				—				—				—				42,198
Lease financing	85,613				36				100				—				—				85,749
Consumer:
Single family residential mortgage	569,871				10,395				14,834				—				—				595,100
Other consumer	161,701				85				40				—				—				161,826
Total traditional loans and leases	3,244,956				31,598				75,096				—				—				3,351,650
PCI loans:
Commercial:
Commercial and industrial	104				—				1,030				—				—				1,134
Commercial real estate	6,676				985				3,866				—				—				11,527
SBA	677				351				2,129				—				—				3,157
Consumer:
Single family residential mortgage	—				—				268				—				230,811				231,079
Total PCI loans	7,457				1,336				7,293				—				230,811				246,897
Total	$	3,581,683			$	33,612			$	103,016			$	—			$	230,811			$	3,949,122
Allowance for Loan and Lease Losses and Recorded Investment, Excluding Accrued Interest, in Loans	The following table presents a summary of activity in the allowance for loan and lease losses for the periods indicated:
		Three Months Ended
		March 31,
		2015				2014
		(In thousands)
	Balance at beginning of period	$	29,480			$	18,805
	Loans and leases charged off	(357		)		(203		)
	Recoveries of loans and leases previously charged off	222				435
	Transfer of loans from (to) held-for-sale	—				(963		)
	Provision for loan and lease losses	—				1,929
	Balance at end of period	$	29,345			$	20,003
	The following table presents the activity and balance in the allowance for loan and lease losses and the recorded investment, excluding accrued interest, in loans and leases by portfolio segment and is based on the impairment method as of or for the three months ended March 31, 2015:
		Commercial				Commercial				Multi-				SBA				Construction				Lease				Single				Other			Unallocated			Total
		and				Real Estate				family												Financing				Family				Consumer
		Industrial																								Residential
																										Mortgage
		(In thousands)
	Allowance for loan and lease losses:
	Balance at December 31, 2014	$	6,910			$	3,840			$	7,179			$	335			$	846			$	873			$	7,192			$	2,305		$	—		$	29,480
	Charge-offs	(11		)		(259		)		—				—				—				(87		)		—				—			—			(357		)
	Recoveries	3				132				3				72				—				—				—				12			—			222
	Provision	(418		)		191				(18		)		159				(151		)		409				(232		)		(304		)	364			—
	Balance at March 31, 2015	$	6,484			$	3,904			$	7,164			$	566			$	695			$	1,195			$	6,960			$	2,013		$	364		$	29,345
	Individually evaluated for impairment	$	749			$	—			$	—			$	—			$	—			$	—			$	450			$	—		$	—		$	1,199
	Collectively evaluated for impairment	5,677				3,792				7,164				547				695				1,195				6,493				2,013			364			27,940
	Acquired with deteriorated credit quality	58				112				—				19				—				—				17				—			—			206
	Total ending allowance balance	$	6,484			$	3,904			$	7,164			$	566			$	695			$	1,195			$	6,960			$	2,013		$	364		$	29,345
	Loans:
	Individually evaluated for impairment	$	8,087			$	373			$	1,566			$	9			$	—			$	—			$	21,790			$	294		$	—		$	32,119
	Collectively evaluated for impairment	480,063				964,929				938,487				45,109				38,081				102,012				920,193				170,924			—			3,659,798
	Acquired with deteriorated credit quality	1,079				10,432				—				3,136				—				—				227,151				—			—			241,798
	Total ending loan balances	$	489,229			$	975,734			$	940,053			$	48,254			$	38,081			$	102,012			$	1,169,134			$	171,218		$	—		$	3,933,715
	The following table presents the activity and balance in the allowance for loan and lease losses and the recorded investment, excluding accrued interest, in loans and leases by portfolio segment and is based on the impairment method as of or for the three months ended March 31, 2014:
		Commercial				Commercial				Multi-				SBA				Construction				Lease				Single				Other			Unallocated			Total
		and				Real Estate				family												Financing				Family				Consumer
		Industrial																								Residential
																										Mortgage
		(In thousands)
	Allowance for loan and lease losses:
	Balance at December 31, 2013	$	1,822			$	5,484			$	2,566			$	235			$	244			$	428			$	7,044			$	532		$	450		$	18,805
	Charge-offs	—				—				—				(17		)		—				—				(151		)		(35		)	—			(203		)
	Recoveries	26				316				—				92				—				—				—				1			—			435
	Transfer of loans to held-for-sale	—				—				—				—				—				—				(963		)		—			—			(963		)
	Provision	519				649				154				(99		)		108				194				217				284			(97		)	1,929
	Balance at March 31, 2014	$	2,367			$	6,449			$	2,720			$	211			$	352			$	622			$	6,147			$	782		$	353		$	20,003
	Individually evaluated for impairment	$	—			$	—			$	37			$	—			$	—			$	—			$	25			$	—		$	—		$	62
	Collectively evaluated for impairment	2,367				6,449				2,683				211				352				622				5,926				782			353			19,745
	Acquired with deteriorated credit quality	—				—				—				—				—				—				196				—			—			196
	Total ending allowance balance	$	2,367			$	6,449			$	2,720			$	211			$	352			$	622			$	6,147			$	782		$	353		$	20,003
	Loans:
	Individually evaluated for impairment	$	—			$	3,218			$	1,674			$	—			$	—			$	—			$	10,160			$	212		$	—		$	15,264
	Collectively evaluated for impairment	297,646				542,750				153,708				23,064				25,144				48,537				856,664				120,795			—			2,068,308
	Acquired with deteriorated credit quality	1,538				14,613				—				3,477				—				—				292,039				1,756			—			313,423
	Total ending loan balances	$	299,184			$	560,581			$	155,382			$	26,541			$	25,144			$	48,537			$	1,158,863			$	122,763		$	—		$	2,396,995
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.
		31-Mar-15												31-Dec-14
		Unpaid				Recorded				Allowance				Unpaid				Recorded				Allowance
		Principal				Investment				for Loan and				Principal				Investment				for Loan and
		Balance								Lease Losses				Balance								Lease Losses
		(In thousands)
	With no related allowance recorded:
	Commercial:
	Commercial and industrial	$	4,085			$	3,953			$	—			$	4,803			$	4,708			$	—
	Commercial real estate	1,233				373				—				1,910				1,017				—
	Multi-family	1,732				1,566				—				1,747				1,594				—
	SBA	23				9				—				24				6				—
	Consumer:
	Single family residential mortgage	17,396				16,725				—				15,729				15,131				—
	Other consumer	294				294				—				507				503				—
	With an allowance recorded:
	Commercial:
	Commercial and industrial	4,179				4,134				749				4,310				4,313				788
	Commercial real estate	—				—				—				—				—				—
	Multi-family	—				—				—				—				—				—
	Consumer:
	Single family residential mortgage	5,243				5,065				450				6,422				6,206				500
	Other consumer	—				—				—				—				—				—
	Total	$	34,185			$	32,119			$	1,199			$	35,452			$	33,478			$	1,288
	The following table presents information on impaired loans and leases, disaggregated by class, for the periods indicated:
		Three Months Ended March 31,
		2015												2014
		Average				Interest				Cash Basis				Average				Interest				Cash Basis
		Recorded				Income				Interest				Recorded				Income				Interest
		Investment				Recognized				Recognized				Investment				Recognized				Recognized
		(In thousands)
	Commercial:
	Commercial and industrial	$	8,199			$	119			$	130			$	—			$	—			$	—
	Commercial real estate	383				10				10				3,417				49				57
	Multi-family	1,580				13				15				1,684				13				13
	SBA	7				—				—				—				—				—
	Consumer:
	Single family residential mortgage	21,866				179				176				10,270				65				65
	Other consumer	294				2				3				213				1				1
	Total	$	32,329			$	323			$	334			$	15,584			$	128			$	136
Composition of Nonaccrual Loans and Leases	The following table presents nonaccrual loans and leases, and loans past due 90 days or more and still accruing as of the dates indicated:
		31-Mar-15												31-Dec-14
		NTM Loans				Traditional				Total				NTM Loans				Traditional				Total
						Loans												Loans
		(In thousands)
	Loans past due 90 days or more and still accruing	$	—			$	—			$	—			$	—			$	—			$	—
	Nonaccrual loans and leases:
	The Company maintains specific allowances for these loans of $584 in 2015 and $478 in 2014	13,635				29,119				42,754				14,592				23,789				38,381
	The following table presents the composition of nonaccrual loans and leases as of the dates indicated:
		31-Mar-15												31-Dec-14
		NTM Loans				Traditional				Total				NTM Loans				Traditional				Total
						Loans												Loans
		(In thousands)
	Commercial:
	Commercial and industrial	$	—			$	6,676			$	6,676			$	—			$	7,143			$	7,143
	Commercial real estate	—				1,026				1,026				—				1,017				1,017
	Multi-family	—				2,005				2,005				—				1,834				1,834
	SBA	—				342				342				—				285				285
	Construction	—				—				—				—				—				—
	Lease financing	—				663				663				—				100				100
	Consumer:
	Single family residential mortgage	2,957				18,371				21,328				2,049				13,370				15,419
	Green Loans (HELOC) - first liens	10,678				—				10,678				12,334				—				12,334
	Green Loans (HELOC) - second liens	—				—				—				209				—				209
	Other consumer	—				36				36				—				40				40
	Total nonaccrual loans and leases	$	13,635			$	29,119			$	42,754			$	14,592			$	23,789			$	38,381
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 as of March 31, 2015, excluding accrued interest receivable (which is not considered to be material), by class of loans and leases:
		31-Mar-15
		30 - 59 Days				60 - 89 Days				Greater				Total				Current				Total
		Past Due				Past Due				than				Past Due
										89 Days
										Past due
		(In thousands)
	NTM loans:
	Single family residential mortgage	$	1,121			$	419			$	2,957			$	4,497			$	224,509			$	229,006
	Green Loans (HELOC) - first liens	9,076				—				—				9,076				110,882				119,958
	Green Loans (HELOC) - second liens	—				—				—				—				4,748				4,748
	Other consumer	—				—				—				—				113				113
	Total NTM loans	10,197				419				2,957				13,573				340,252				353,825
	Traditional loans and leases:
	Commercial:
	Commercial and industrial	601				16				170				787				487,363				488,150
	Commercial real estate	3,230				495				653				4,378				960,924				965,302
	Multi-family	629				2,487				207				3,323				936,730				940,053
	SBA	6				—				314				320				44,798				45,118
	Construction	—				—				—				—				38,081				38,081
	Lease financing	1,033				64				663				1,760				100,252				102,012
	Consumer:
	Single family residential mortgage	17,453				2,765				15,574				35,792				557,227				593,019
	Other consumer	1,150				96				—				1,246				165,111				166,357
	Total traditional loans and leases	24,102				5,923				17,581				47,606				3,290,486				3,338,092
	Purchased Credit Impaired (PCI) loans:
	Commercial:
	Commercial and industrial	736				—				—				736				343				1,079
	Commercial real estate	—				—				1,055				1,055				9,377				10,432
	SBA	668				8				616				1,292				1,844				3,136
	Consumer:
	Single family residential mortgage	11,863				3,100				5,315				20,278				206,873				227,151
	Total PCI loans	13,267				3,108				6,986				23,361				218,437				241,798
	Total	$	47,566			$	9,450			$	27,524			$	84,540			$	3,849,175			$	3,933,715
	The following table presents the aging of the recorded investment in past due loans and leases as of December 31, 2014, excluding accrued interest receivable (which is not considered to be material), by class of loans and leases:
		31-Dec-14
		30 - 59 Days				60 - 89 Days				Greater				Total				Current				Total
		Past Due				Past Due				than				Past Due
										89 Days
										Past due
		(In thousands)
	NTM loans:
	Single family residential mortgage	$	1,415			$	165			$	2,049			$	3,629			$	218,677			$	222,306
	Green Loans (HELOC) - first liens	8,853				—				437				9,290				113,887				123,177
	Green Loans (HELOC) - second liens	294				—				209				503				4,476				4,979
	Other consumer	—				—				—				—				113				113
	Total NTM loans	10,562				165				2,695				13,422				337,153				350,575
	Traditional loans and leases:
	Commercial:
	Commercial and industrial	79				37				3,370				3,486				486,280				489,766
	Commercial real estate	2,237				—				—				2,237				986,093				988,330
	Multi-family	1,072				208				—				1,280				954,403				955,683
	SBA	82				—				254				336				32,662				32,998
	Construction	—				—				—				—				42,198				42,198
	Lease financing	1,055				36				100				1,191				84,558				85,749
	Consumer:
	Single family residential mortgage	17,185				7,878				10,411				35,474				559,626				595,100
	Other consumer	9				89				5				103				161,723				161,826
	Total traditional loans and leases	21,719				8,248				14,140				44,107				3,307,543				3,351,650
	PCI loans:
	Commercial:
	Commercial and industrial	—				—				—				—				1,134				1,134
	Commercial real estate	—				—				951				951				10,576				11,527
	SBA	878				—				300				1,178				1,979				3,157
Consumer:
Single family residential mortgage	13,262				3,501				4,510				21,273				209,806				231,079
Total PCI loans	14,140				3,501				5,761				23,402				223,495				246,897
Total	$	46,421			$	11,914			$	22,596			$	80,931			$	3,868,191			$	3,949,122
Troubled Debt Restructurings	For the three months ended March 31, 2015, there were 2 modifications through bankruptcy discharges. There were no modifications for the three ended March 31, 2014. The following table summarizes the pre-modification and post-modification balances of the new TDRs for the three months ended March 31, 2015 and 2014:
		Three Months Ended March 31,
		2015											2014
		Number of			Pre-				Post-Modification				Number of			Pre-Modification				Post-Modification
		Loans			Modification				Outstanding				Loans			Outstanding				Outstanding
					Outstanding				Recorded							Recorded				Recorded
					Recorded				Investment							Investment				Investment
					Investment
		($ in thousands)
	Consumer:
	Single family residential mortgage	2			$	1,430			$	1,430			—			$	—			$	—
	Total	2			$	1,430			$	1,430			—			$	—			$	—
	For the three months ended March 31, 2015 and 2014, there were no loans and leases that were modified as TDRs during the past 12 months that had payment defaults during the periods.
	Troubled debt restructured loans and leases consist of the following as of the dates indicated:
		31-Mar-15												31-Dec-14
		NTM				Traditional				Total				NTM				Traditional				Total
		Loans				Loans								Loans				Loans
		(In thousands)
	Commercial:
	Commercial real estate	$	—			$	—			$	—			$	—			$	—			$	—
	SBA	—				9				9				—				6				6
	Consumer:
	Single family residential mortgage	—				4,543				4,543				—				4,269				4,269
	Green Loans (HELOC) - first liens	4,549				—				4,549				3,442				—				3,442
	Green Loans (HELOC) - second liens	294				—				294				294				—				294
	Total	$	4,843			$	4,552			$	9,395			$	3,736			$	4,275			$	8,011
Carrying Amount of Purchased Credit Impaired Loans and Leases	The following table presents the outstanding balance and carrying amount of those loans and leases, which are sometimes collectively referred to as “PCI loans” as of the dates indicated:
		31-Mar-15								31-Dec-14
		Outstanding				Carrying				Outstanding				Carrying
		Balance				Amount				Balance				Amount
		(In thousands)
	Commercial:
	Commercial and industrial	$	1,700			$	1,079			$	1,767			$	1,134
	Commercial real estate	12,052				10,432				13,708				11,527
	SBA	4,175				3,136				4,220				3,157
	Consumer:
	Single family residential mortgage	277,253				227,151				283,067				231,079
	Total	$	295,180			$	241,798			$	302,762			$	246,897
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
		March 31,
		2015				2014
		(In thousands)
	Balance at beginning of period	$	92,301			$	126,336
	New loans or leases purchased	—				—
	Accretion of income	(5,048		)		(7,169		)
	Changes in expected cash flows	(25		)		131
	Disposals	(1,933		)		(10,950		)
	Balance at end of period	$	85,295			$	108,348

SERVICING_RIGHTS_Tables

SERVICING RIGHTS (Tables)	3 Months Ended
	Mar. 31, 2015
Transfers and Servicing [Abstract]
Servicing Rights	The following table presents a composition of servicing rights as of the dates indicated:
		March 31,			31-Dec-14
		2015
		(In thousands)
	Mortgage servicing rights, at fair value	$	21,165		$	19,082
	SBA servicing rights, at cost	664			484
	Total	$	21,829		$	19,566
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:
		March 31,			31-Dec-14
		2015
		($ in thousands)
	Fair value of retained MSRs	$	21,165		$	13,135
	Discount rate	9.84		%	10.09		%
	Constant prepayment rate	12.98		%	13.22		%
	Weighted-average life (in years)	6.04			5.8
Mortgage Servicing Rights	The following table presents activity in the MSRs for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	19,082		$	13,535
	Additions	10,192			5,140
	Changes in fair value resulting from valuation inputs or assumptions	(528		)	462
	Sales of servicing rights	(5,862		)	—
	Other—loans paid off	(1,719		)	(584		)
	Balance at end of period	$	21,165		$	18,553
Small Business Administration Servicing Rights	The following table presents activity in the SBA servicing rights for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	484		$	348
	Additions	195			—
	Amortization, including prepayments	(15		)	(21		)
	Balance at end of period	$	664		$	327

OTHER_REAL_ESTATE_OWNED_Tables

OTHER REAL ESTATE OWNED (Tables)	3 Months Ended
	Mar. 31, 2015
Real Estate Owned, Disclosure of Detailed Components [Abstract]
Schedule of Real Estate Owned	The following table presents the activity in other real estate owned for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	423		$	—
	Additions	534			150
	Sales and net direct write-downs	(437		)	—
	Net change in valuation allowance	(22		)	—
	Balance at end of period	$	498		$	150
Activities in Other Real Estate Owned Valuation Allowance	The following table presents the activity in the other real estate owned valuation allowance for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	32		$	—
	Additions	22			—
	Net direct write-downs and removals from sale	—			—
	Balance at end of period	$	54		$	—
Expenses Related to Foreclosed Assets Included in Loan Servicing and Foreclosure Expenses	The following table presents expenses related to foreclosed assets included in Loan Servicing and Foreclosure Expenses on the Consolidated Statements of Operations for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Net gain (loss) on sales	$	17		$	—
	Operating expenses, net of rental income	—			—
	Total	$	17		$	—

GOODWILL_AND_OTHER_INTANGIBLE_1

GOODWILL AND OTHER INTANGIBLE ASSETS, NET (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	The following table presents a summary of other intangible assets as of the dates indicated:
		Gross		Accumulated		Net
		Carrying		Amortization		Carrying
		Value				Value
		(In thousands)
	31-Mar-15
	Core deposit intangibles	$	31,162	$	8,748	$	22,414
	Customer relationship intangible	670		156		514
	Trade name intangibles	780		—		780
	31-Dec-14
	Core deposit intangibles	$	31,162	$	7,237	$	23,925
	Customer relationship intangible	670		123		547
	Trade name intangibles	780		—		780
Schedule of Indefinite-Lived Intangible Assets	The following table presents a summary of other intangible assets as of the dates indicated:
		Gross		Accumulated		Net
		Carrying		Amortization		Carrying
		Value				Value
		(In thousands)
	31-Mar-15
	Core deposit intangibles	$	31,162	$	8,748	$	22,414
	Customer relationship intangible	670		156		514
	Trade name intangibles	780		—		780
	31-Dec-14
	Core deposit intangibles	$	31,162	$	7,237	$	23,925
	Customer relationship intangible	670		123		547
	Trade name intangibles	780		—		780
Estimated Future Amortization Expense	The following table presents estimated future amortization expenses as of March 31, 2015:
		2015		2016		2017		2018		2019 and		Total
										After
		(In thousands)
	Estimated future amortization expense	$	4,292	$	4,946	$	4,066	$	3,205	$	6,419	$	22,928

MORTGAGE_BANKING_ACTIVITIES_Ta

MORTGAGE BANKING ACTIVITIES (Tables)	3 Months Ended
	Mar. 31, 2015
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 losses on repurchased loans for the periods indicated:
		Three Months Ended
		March 31,
		2015			2014
		(In thousands)
	Balance at beginning of period	$	8,303		$	5,427
	Provision for loan repurchases	1,328			571
	Payments made for loss reimbursement on sold loans	(1,199		)	(132		)
	Balance at end of period	$	8,432		$	5,866

RISK_MANAGEMENT_AND_DERIVATIVE1

RISK MANAGEMENT AND DERIVATIVE INSTRUMENTS (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount and Market Value of Mortgage Banking Derivatives	The following table presents the amount and market value of derivative instruments included in the Consolidated Statements of Financial Condition as of the dates indicated. Note 3 contains further disclosures pertaining to the fair value of mortgage banking derivatives.
		31-Mar-15				31-Dec-14
		Notional		Fair Value		Notional		Fair Value
		Amount				Amount
		(In thousands)
	Included in assets:
	Interest rate lock commitments	$	429,917	$	13,555	$	179,923	$	5,750
	Mandatory forward commitments	—		—		25,735		629
	Total included in assets	$	429,917	$	13,555	$	205,658	$	6,379
	Included in liabilities:
	Interest rate lock commitments	$	9,978	$	98	$	10,075	$	197
	Mandatory forward commitments	572,000		4,039		364,829		2,803
	Interest rate swap	75,000		415		50,000		235
	Total included in liabilities	$	656,978	$	4,552	$	424,904	$	3,235

STOCK_COMPENSATION_PLANS_Table

STOCK COMPENSATION PLANS (Tables)	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Unrecognized Share-Based Compensation Expense	The following table presents unrecognized share-based compensation expense as of March 31, 2015:
		Unrecognized			Average
		Expense			Expected
					Recognition
					Period
		($ in thousands)
	Stock option awards	$	998		2.9 years
	Restricted stock awards and restricted stock units	9,546			3.6 years
	Total	$	10,544		3.5 years
Option Activity	The following table represents stock option activity as of and for the three months ended March 31, 2015:
		Number of		Weighted-			Weighted-		Aggregated
		Shares		Average			Average		Intrinsic
				Exercise			Remaining		Value
				Price per			Contract		(In thousands)
				Share			Term
	Outstanding at beginning of period	879,070		$	12.67		7.3 years		$	32
	Granted	—		$	—		0.0 years		$	—
	Exercised	—		$	—		0.0 years		$	—
	Forfeited	(50,540	)	$	11.9		5.6 years		$	—
	Outstanding at end of period	828,530		$	12.72		7.4 years		$	229
	Exercisable at end of period	496,016		$	11.85		7.9 years		$	229
Nonvested Share	The following table represents changes in unvested stock options and related information as of and for the three months ended March 31, 2015:
		Number		Weighted-
		of Shares		Average
				Exercise
				Price per
				Share
	Outstanding at beginning of period	552,672		$	12.74
	Granted	—		$	—
	Vested	—		$	—
	Forfeited	—		$	—
	Outstanding at end of period	552,672		$	12.74
Restricted Stock and Restricted Stock Units Activity	The following table represents unvested restricted stock awards and restricted stock units activity as of and for the three months ended March 31, 2015:
		Number of		Weighted-
		Shares		Average
				Price per
				Share
	Outstanding at beginning of period	1,287,302		$	12.53
	Granted	80,670		$	10.93
	Vested	(22,419	)	$	11.06
	Forfeited	(28,669	)	$	12.22
	Outstanding at end of period	1,316,884		$	12.46
Summary of all Outstanding SARs	The following table represents a summary of all outstanding SARs (Initial SAR and Additional SARs, together the SARs):
		Initial SAR			Additional			Additional			Additional		Additional		Additional		Additional		Additional
					SAR I (1)			SAR II (2)			SAR III (3)		SAR IV (4)		SAR V (5)		SAR VI (6)		SAR VII (7)
	Grant Date	8/21/12			6/21/13			7/1/13			7/2/13		12/10/13		5/21/14		5/21/14		11/7/14
	Number of shares	500,000			150,933			88,366			15,275		70,877		252,023		280,110		216,334
	Base price per share	$	12.12		$	13.06		$	13.6		$	13.55	$	12.83	$	10.09	$	10.09	$	11.62
	Grant date fair value per share	$	2.77		$	2.38		$	2.17		$	2.19	$	2.47	$	1.65	$	2.22	$	1.84
	-1	Issued due to the Company’s common stock issuance for an underwritten public offering completed on June 21, 2013.
	-2	Issued due to the Company’s common stock issuance in connection with the PBOC acquisition completed on July 1, 2013.
	-3	Issued due to the Company’s common stock issuance for the exercise of over-allotment option granted to the underwriters of the Company’s public common stock offering initially completed on June 21, 2013.
	-4	Issued due to the Company’s common stock issuance in a private placement completed on December 10, 2013.
	-5	Issued due to the Company’s common stock issuance for an underwritten public offering completed on May 21, 2014.
	-6	The Additional SAR VI originally related to 300,219 shares of common stock with a scheduled vesting of May 21, 2017, as described above. As a result of the settlements of portions of the Purchase Contacts, the Additional SAR VI accelerated in vesting with respect to 143,849 shares and 20,109 shares were forfeited as of March 31, 2015. A portion of Additional SAR VI that has accelerated in vesting has the same terms and conditions as the Initial SAR.
	-7	Issued due to the Company's common stock issuance for a private placement completed on November 7, 2014.

STOCKHOLDERS_EQUITY_Tables

STOCKHOLDERS' EQUITY (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Changes to Accumulate Other Comprehensive Income by Components	The following table presents changes to accumulated other comprehensive income for the periods indicated:
		Three Months Ended March 31,
		2015									2014
		Available for Sale			Cash Flow			Total			Available for Sale			Cash Flow			Total
		Securities			Hedge						Securities			Hedge
		(In thousands)
	Unrealized gain (loss)
	Balance at beginning of period	$	509		$	(136	)	$	373		$	(826	)	$	226		$	(600	)
	Unrealized gain(loss) arising during the period	3,330			(180		)	3,150			1,023			(217		)	806
	Reclassification adjustment from other comprehensive income	2			—			2			(507		)	—			(507		)
	Tax effect of current period changes	(1,403		)	76			(1,327		)	—			—			—
	Total changes, net of taxes	1,929			(104		)	1,825			516			(217		)	299
	Balance at end of period	$	2,438		$	(240	)	$	2,198		$	(310	)	$	9		$	(301	)

REGULATORY_CAPITAL_MATTERS_Tab

REGULATORY CAPITAL MATTERS (Tables)	3 Months Ended
	Mar. 31, 2015
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:
		Amount		Ratio		Minimum		Ratio		Minimum		Ratio
						Capital				Required
						Requirement				to Be Well
										Capitalized Under
										Prompt Corrective
										Action Provisions
		($ in thousands)
	31-Mar-15
	Banc of California, Inc.
	Total risk-based capital ratio	$	502,054	11.55	%	$	347,838	8	%	N/A		N/A
	Tier 1 risk-based capital ratio	470,808		10.83	%	260,879		6	%	N/A		N/A
	Common equity tier 1 capital ratio	391,714		9.01	%	195,659		4.5	%	N/A		N/A
	Tier 1 leverage ratio	470,808		7.99	%	235,611		4	%	N/A		N/A
	Banc of California, NA
	Total risk-based capital ratio	$	589,547	13.58	%	$	347,348	8	%	$	434,185	10	%
	Tier 1 risk-based capital ratio	558,301		12.86	%	260,511		6	%	347,348		8	%
	Common equity tier 1 capital ratio	558,301		12.86	%	195,383		4.5	%	282,220		6.5	%
	Tier 1 leverage ratio	558,301		9.49	%	235,344		4	%	294,180		5	%
	31-Dec-14
	Banc of California, Inc.
	Total risk-based capital ratio	$	473,656	11.28	%	$	335,829	8	%	N/A		N/A
	Tier 1 risk-based capital ratio	442,307		10.54	%	167,914		4	%	N/A		N/A
	Tier 1 leverage ratio	442,307		8.57	%	206,502		4	%	N/A		N/A
	Banc of California, NA
	Total risk-based capital ratio	$	503,727	12.04	%	$	334,834	8	%	$	418,543	10	%
	Tier 1 risk-based capital ratio	472,378		11.29	%	167,417		4	%	251,126		6	%
	Tier 1 leverage ratio	472,378		9.17	%	206,095		4	%	257,619		5	%

EARNINGS_PER_COMMON_SHARE_Tabl

EARNINGS PER COMMON SHARE (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Basic and Diluted Earnings Per Common Share	Computations for basic and diluted EPS are provided below.
		Three Months Ended March 31,
		2015									2014
		Common			Class B			Total			Common			Class B			Total
		Stock			Common						Stock			Common
					Stock									Stock
		($ in thousands, except per share data)
	Basic:
	Net income	$	12,560		$	14		$	12,574		$	727		$	22		$	749
	Less: income allocated to participating securities	(272		)	—			(272		)	—			—			—
	Less: participating securities dividends	(173		)	—			(173		)	—			—			—
	Less: preferred stock dividends	(909		)	(1		)	(910		)	(883		)	(27		)	(910		)
	Net income (loss) allocated to common stockholders	$	11,206		$	13		$	11,219		$	(156	)	$	(5	)	$	(161	)
	Weighted average common shares outstanding	37,831,035			42,218			37,873,253			19,609,017			590,008			20,199,025
	Basic earnings (loss) per common share	$	0.3		$	0.3		$	0.3		$	(0.01	)	$	(0.01	)	$	(0.01	)
	Diluted:
	Net income (loss) allocated to common stockholders	$	11,206		$	13		$	11,219		$	(156	)	$	(5	)	$	(161	)
	Additional income allocation for class B dilutive shares	(85		)	85			—			—			—			—
	Adjusted net income (loss) allocated to common stockholders	$	11,121		$	98		$	11,219		$	(156	)	$	(5	)	$	(161	)
	Weighted average common shares outstanding for basic earnings per common share	37,831,035			42,218			37,873,253			19,609,017			590,008			20,199,025
	Add: Dilutive effects of restricted stock units	146,876			—			146,876			—			—			—
	Add: Dilutive effects of purchase contracts	—			—			—			—			—			—
	Add: Dilutive effects of stock options	626			—			626			—			—			—
	Add: Dilutive effects of warrants	—			283,911			283,911			—			—			—
	Average shares and dilutive common shares	37,978,537			326,129			38,304,666			19,609,017			590,008			20,199,025
	Diluted earnings (loss) per common share	$	0.29		$	0.3		$	0.29		$	(0.01	)	$	(0.01	)	$	(0.01	)

OFFBALANCE_SHEET_COMMITMENTS_T

OFF-BALANCE SHEET COMMITMENTS (Tables)	3 Months Ended
	Mar. 31, 2015
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:
		31-Mar-15				31-Dec-14
		Fixed		Variable		Fixed		Variable
		Rate		Rate		Rate		Rate
		(In thousands)
	Commitments to extend credit	$	126,760	$	94,011	$	87,517	$	82,818
	Unused lines of credit	35,865		310,839		20,631		295,626
	Letters of credit	810		11,140		825		10,411

Segment_Reporting_Tables

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following table represents the operating segments’ financial results and other key financial measures as of or for the three months ended March 31, 2015 and 2014:
		As of or For the Three Months Ended
		Banking		Mortgage Banking			Financial Advisory and Asset Management		Corporate/ Other			Inter-segment Elimination			Consolidated
		(In thousands)
	31-Mar-15
	Net interest income	$	51,552	$	2,501		$	—	$	(2,056	)	$	—		$	51,997
	Provision for loan and lease losses	—		—			—		—			—			—
	Noninterest income	7,855		36,928			2,622		—			(1,425		)	45,980
	Noninterest expense	43,492		29,797			1,980		2,035			(1,425		)	75,879
	Income (loss) before income taxes	$	15,915	$	9,632		$	642	$	(4,091	)	$	—		$	22,098
	Total assets	$	5,684,574	$	406,215		$	2,987	$	25,424		$	(21,845	)	$	6,097,355
	31-Mar-14
	Net interest income	$	34,900	$	1,869		$	—	$	(1,584	)	$	—		$	35,185
	Provision for loan and lease losses	1,929		—			—		—			—			1,929
	Noninterest income	5,796		18,369			2,993		3			(1,883		)	25,278
	Noninterest expense	31,681		22,849			2,246		2,701			(1,883		)	57,594
	Income (loss) before income taxes	$	7,086	$	(2,611	)	$	747	$	(4,282	)	$	—		$	940
	Total assets	$	3,816,728	$	202,555		$	3,943	$	19,257		$	(12,018	)	$	4,030,465

SUMMARY_OF_SIGNIFICANT_ACCOUNT3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	industry_group
	rolling_quarter
	banking_office
	loan_production_office
Accounting Policies [Abstract]
Number of banking offices	38
Number of loan production offices	61
Net deferred tax asset	$14,157,000		$16,373,000
Valuation allowance	0		0
Look-back period	28
Number of industry groups	3
Accounting Standards Update 2014-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of change on equity or net assets			-274,000
Effect of change on net income		($8,000)

SUMMARY_OF_SIGNIFICANT_ACCOUNT4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Change in Accounting Principle - Consolidated Statements of Financial Condition (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets [Abstract]
Cash and cash equivalents	$265,402	$231,199	$333,639	$110,118
Time deposits in financial institutions	1,900	1,900
Securities available for sale	393,586	345,695
Loans held for sale		1,187,090
Loans and leases receivable	3,904,370	3,919,642
Deferred income tax	14,157	16,373
Other assets		269,398
Total Assets	6,097,355	5,971,297	4,030,465
Liabilities and Equity [Abstract]
Liabilities	5,583,195	5,467,982
Total stockholdersb equity	514,160	503,315	325,157	324,708
Total liabilities and stockholdersb equity	6,097,355	5,971,297
As Previously Reported
Assets [Abstract]
Cash and cash equivalents		231,199	333,639	110,118
Time deposits in financial institutions		1,900
Securities available for sale		345,695
Loans held for sale		1,187,090
Loans and leases receivable		3,919,642
Deferred income tax		16,445
Other assets		269,600
Total Assets		5,971,571
Liabilities and Equity [Abstract]
Liabilities		5,467,982
Total stockholdersb equity		503,589
Total liabilities and stockholdersb equity		5,971,571
Effect of Change in Accounting Principle
Assets [Abstract]
Cash and cash equivalents		0	0
Time deposits in financial institutions		0
Securities available for sale		0
Loans held for sale		0
Loans and leases receivable		0
Deferred income tax		-72
Other assets		-202
Total Assets		-274
Liabilities and Equity [Abstract]
Liabilities		0
Total stockholdersb equity		-274
Total liabilities and stockholdersb equity		($274)

SUMMARY_OF_SIGNIFICANT_ACCOUNT5

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Change in Accounting Principle - Consolidated Statements of Operations (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest and dividend income	$60,780	$42,776
Interest expense	8,783	7,591
Net interest income	51,997	35,185
Provision for loan and lease losses	0	1,929
Noninterest income	45,980	25,278
Noninterest expense	75,879	57,594
Income before income taxes	22,098	940
Income tax expense	9,524	191
Net income	12,574	749
Preferred stock dividends	910	910
Net income (loss) available to common stockholders	11,664	-161
Basic earnings per common share (in usd per share)	$0.30	($0.01)
Diluted earnings per common share (in usd per share)	$0.29	($0.01)
As Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest and dividend income		42,776
Interest expense		7,591
Net interest income		35,185
Provision for loan and lease losses		1,929
Noninterest income		25,278
Noninterest expense		57,768
Income before income taxes		766
Income tax expense		9
Net income		757
Preferred stock dividends		910
Net income (loss) available to common stockholders		-153
Basic earnings per common share (in usd per share)		($0.01)
Diluted earnings per common share (in usd per share)		($0.01)
Effect of Change in Accounting Principle
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest and dividend income		0
Interest expense		0
Net interest income		0
Provision for loan and lease losses		0
Noninterest income		0
Noninterest expense		-174
Income before income taxes		174
Income tax expense		182
Net income		-8
Preferred stock dividends		0
Net income (loss) available to common stockholders		($8)
Basic earnings per common share (in usd per share)		$0
Diluted earnings per common share (in usd per share)		$0

SUMMARY_OF_SIGNIFICANT_ACCOUNT6

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Change in Accounting Principle - Consolidated Statements of Cash Flows (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income	$12,574	$749
Total adjustment in net income		-268,676
Net cash used in operating activities	-69,989	-267,927
Net cash provided by investing activities	-6,798	88,474
Net cash provided by financing activities	110,990	402,974
Net change in cash and cash equivalents	34,203	223,521
Cash and cash equivalents at beginning of period	231,199	110,118
Cash and cash equivalents at end of period	265,402	333,639
As Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income		757
Total adjustment in net income		-268,684
Net cash used in operating activities		-267,927
Net cash provided by investing activities		88,474
Net cash provided by financing activities		402,974
Net change in cash and cash equivalents		223,521
Cash and cash equivalents at beginning of period		110,118
Cash and cash equivalents at end of period		333,639
Effect of Change in Accounting Principle
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income		-8
Total adjustment in net income		8
Net cash used in operating activities		0
Net cash provided by investing activities		0
Net cash provided by financing activities		0
Net change in cash and cash equivalents		0
Cash and cash equivalents at end of period		$0

BUSINESS_COMBINATIONS_Summary_

BUSINESS COMBINATIONS - Summary of Acquired Assets and Assumed Liabilities (Detail) (USD $)	0 Months Ended
In Thousands, unless otherwise specified	Nov. 08, 2014	Jan. 31, 2014	Mar. 31, 2015	Dec. 31, 2014
Assets acquired:
Goodwill			$31,591	$31,591
Banco Popular Branches
Assets acquired:
Cash and due from banks	5,532
Loans and leases receivable	1,072,449
Premises, equipment, and capital leases	9,002
Goodwill	0
Other intangible assets	15,777
Other assets	2,301
Total assets acquired	1,105,061
Liabilities assumed:
Deposits	1,076,614
Other liabilities	506
Total liabilities assumed	1,077,120
Total consideration paid	27,941
Summary of consideration
Cash paid	27,941
Common stock issued	0
Earn-out liabilities	0
Renovation Ready
Assets acquired:
Cash and due from banks		0
Loans and leases receivable		0
Premises, equipment, and capital leases		0
Goodwill		2,239
Other intangible assets		761
Other assets		0
Total assets acquired		3,000
Liabilities assumed:
Deposits		0
Other liabilities		1,000
Total liabilities assumed		1,000
Total consideration paid		2,000
Summary of consideration
Cash paid		1,000
Common stock issued		1,000
Earn-out liabilities		$1,000

BUSINESS_COMBINATIONS_Narrativ

BUSINESS COMBINATIONS - Narrative (Details) (USD $)	0 Months Ended	12 Months Ended
	Nov. 08, 2014	Dec. 31, 2014	Mar. 31, 2015	Jan. 31, 2014
Business Acquisition [Line Items]
Goodwill		$31,591,000	$31,591,000
Banco Popular Branches
Business Acquisition [Line Items]
Number of branches	20
Payments to acquire businesses, deposit premiums received	3,900,000
Payments to acquire businesses, net of deposit premiums received	24,000,000
Loans and leases receivable	1,072,449,000
Deposit liabilities	1,076,614,000
Other intangible assets	15,777,000
Direct acquisition costs		4,300,000
Goodwill	0
Banco Popular Branches | Core deposit intangibles
Business Acquisition [Line Items]
Other intangible assets	15,777,000
Amortization period of other intangible assets	10 years
Renovation Ready
Business Acquisition [Line Items]
Loans and leases receivable				0
Deposit liabilities				0
Other intangible assets				761,000
Goodwill				$2,239,000

BUSINESS_COMBINATIONS_Banco_Po

BUSINESS COMBINATIONS - Banco Popular's California Branch Network Acquisition (Details) (USD $)	0 Months Ended
In Thousands, unless otherwise specified	Nov. 08, 2014	Mar. 31, 2015	Dec. 31, 2014	Nov. 07, 2014
Fair value adjustments
Goodwill		$31,591	$31,591
Banco Popular Branches
Business Acquisition [Line Items]
Total Consideration	27,941
Fair value adjustments
Loans receivable	-12,165
Core deposit intangibles	15,777
Certificates of deposit purchase premium	-916
Premises and equipment	1,218
Total fair value adjustments	3,914
Fair value of net assets acquired	27,941
Goodwill	0
Banco Popular Branches
Business Acquisition [Line Items]
Net assets pre-acquisition				$24,027

FAIR_VALUES_OF_FINANCIAL_INSTR2

FAIR VALUES OF FINANCIAL INSTRUMENTS - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Servicing rights held for sale, carried at fair value	$0		$5,947
Valuation allowance for other real estate owned	22	0
Alternative investments liquidation period	10 years
Affordable Housing Fund Investment
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Alternative investments unfunded investment commitments	487
Small Business Investment Companies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Alternative investments unfunded investment commitments	7,200
Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Servicing rights held for sale, carried at fair value	$0		$5,900

FAIR_VALUES_OF_FINANCIAL_INSTR3

FAIR VALUES OF FINANCIAL INSTRUMENTS - Recurring Basis (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$393,586	$345,695
Loans held for sale	1,249,370	1,195,834
Derivative assets	13,555	6,379
Mortgage servicing rights, at fair value	21,165	19,082	18,553	13,535
Derivative liabilities	4,552	3,235
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	393,586	345,695
Loans held for sale	1,249,370	1,195,834
Derivative assets	13,555	6,379
Derivative liabilities	4,552	3,235
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	0	0
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	393,586	345,695
Loans held for sale	1,240,942	1,187,090
Derivative assets	13,555	6,379
Derivative liabilities	4,552	3,235
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
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | SBA loan pool securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government-sponsored entities and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Private label residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Agency mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Servicing Asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights, at fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Accrued Expenses and Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	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	355,746	278,749
Recurring | Significant Other Observable Inputs (Level 2) | SBA loan pool securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,635	1,715
Recurring | Significant Other Observable Inputs (Level 2) | U.S. government-sponsored entities and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	2,001	1,982
Recurring | Significant Other Observable Inputs (Level 2) | Private label residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	2,615	3,168
Recurring | Significant Other Observable Inputs (Level 2) | Agency mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	387,335	338,830
Recurring | Significant Other Observable Inputs (Level 2) | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	13,555	6,379
Recurring | Significant Other Observable Inputs (Level 2) | Servicing Asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights, at fair value	0	0
Recurring | Significant Other Observable Inputs (Level 2) | Accrued Expenses and Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	4,552	3,235
Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | SBA loan pool securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | U.S. government-sponsored entities and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Private label residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Agency mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Servicing Asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights, at fair value	21,165	19,082
Recurring | Significant Unobservable Inputs (Level 3) | Accrued Expenses and Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0	0
Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	355,746	278,749
Recurring | Carrying Value | SBA loan pool securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,635	1,715
Recurring | Carrying Value | U.S. government-sponsored entities and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	2,001	1,982
Recurring | Carrying Value | Private label residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	2,615	3,168
Recurring | Carrying Value | Agency mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	387,335	338,830
Recurring | Carrying Value | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	13,555	6,379
Recurring | Carrying Value | Servicing Asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights, at fair value	21,165	19,082
Recurring | Carrying Value | Accrued Expenses and Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	$4,552	$3,235

FAIR_VALUES_OF_FINANCIAL_INSTR4

FAIR VALUES OF FINANCIAL INSTRUMENTS - Reconciliation of Assets Measured at Fair Value on Recurring Basis (Detail) (Mortgage servicing rights, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Mortgage servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$19,082	$13,535
Transfers out of Level 3	0	-9,185
Total gains or losses (realized/unrealized):
Included in earningsbrealized	0	0
Included in earningsbfair value adjustment	-528	315
Included in other comprehensive income	0	0
Amortization of premium (discount)	0	0
Additions	10,192	4,326
Sales and settlements	-7,581	-584
Balance at end of period	$21,165	$8,407

FAIR_VALUES_OF_FINANCIAL_INSTR5

FAIR VALUES OF FINANCIAL INSTRUMENTS - Quantitative Information About Level 3 Fair Value Measurements (Detail) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Mortgage servicing rights, at fair value	21,165	18,553	19,082	$13,535
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Mortgage servicing rights, at fair value	21,165	8,407	13,135
Recurring | Significant Unobservable Inputs (Level 3) | Discounted cash flow | Mortgage servicing rights | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	9.00%	10.00%	9.00%
Prepayment Rate	5.15%	3.92%	4.59%
Recurring | Significant Unobservable Inputs (Level 3) | Discounted cash flow | Mortgage servicing rights | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	13.20%	17.89%	19.50%
Prepayment Rate	34.28%	34.54%	31.02%
Recurring | Significant Unobservable Inputs (Level 3) | Discounted cash flow | Mortgage servicing rights | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	9.84%	10.81%	10.09%
Prepayment Rate	12.98%	13.17%	13.22%

FAIR_VALUES_OF_FINANCIAL_INSTR6

FAIR VALUES OF FINANCIAL INSTRUMENTS - Nonrecurring Basis (Details) (Nonrecurring, USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing rights		$0
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) | Single family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing rights		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) | Single family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Significant Other Observable Inputs (Level 2) | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing rights		484
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	498	423
Significant Unobservable Inputs (Level 3) | Single family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	5,065	6,206
Significant Unobservable Inputs (Level 3) | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	4,134	4,313
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing rights		484
Carrying Value | Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	498	423
Carrying Value | Single family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	5,065	6,206
Carrying Value | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$4,134	$4,313

FAIR_VALUES_OF_FINANCIAL_INSTR7

FAIR VALUES OF FINANCIAL INSTRUMENTS - Gains and (Losses) on Non-Recurring Assets (Detail) (Nonrecurring, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
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	($151)
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	-2
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	($5)	$0

FAIR_VALUES_OF_FINANCIAL_INSTR8

FAIR VALUES OF FINANCIAL INSTRUMENTS - Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financial assets
Cash and cash equivalents	$265,402	$231,199
Time deposits in financial institutions	1,900	1,900
Securities available for sale	393,586	345,695
FHLB and other bank stock	39,844	42,241
Loans held for sale	1,249,370	1,195,834
Loans and leases receivable, net of allowance	4,008,008	4,045,465
Accrued interest receivable	14,970	15,113
Derivative assets	13,555	6,379
Financial liabilities
Deposits	4,719,344	4,575,264
Advances from Federal Home Loan Bank	545,195	633,083
Other borrowings	15,000
Notes payable	98,852	100,788
Derivative liabilities	4,552	3,235
Accrued interest payable	2,016	2,044
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets
Cash and cash equivalents	265,402	231,199
Time deposits in financial institutions	1,900	1,900
Securities available for sale	0	0
FHLB and other bank stock	0	0
Loans held for sale	0	0
Loans and leases receivable, net of allowance	0	0
Accrued interest receivable	14,970	15,113
Derivative assets	0	0
Financial liabilities
Deposits	0	0
Advances from Federal Home Loan Bank	0	0
Other borrowings	0
Notes payable	86,750	87,428
Derivative liabilities	0	0
Accrued interest payable	2,016	2,044
Significant Other Observable Inputs (Level 2)
Financial assets
Cash and cash equivalents	0	0
Time deposits in financial institutions	0	0
Securities available for sale	393,586	345,695
FHLB and other bank stock	39,844	42,241
Loans held for sale	1,249,370	1,195,834
Loans and leases receivable, net of allowance	0	0
Accrued interest receivable	0	0
Derivative assets	13,555	6,379
Financial liabilities
Deposits	0	0
Advances from Federal Home Loan Bank	545,195	633,083
Other borrowings	15,000
Notes payable	12,102	13,360
Derivative liabilities	4,552	3,235
Accrued interest payable	0	0
Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	0	0
Time deposits in financial institutions	0	0
Securities available for sale	0	0
FHLB and other bank stock	0	0
Loans held for sale	0	0
Loans and leases receivable, net of allowance	4,008,008	4,045,465
Accrued interest receivable	0	0
Derivative assets	0	0
Financial liabilities
Deposits	4,719,344	4,575,264
Advances from Federal Home Loan Bank	0	0
Other borrowings	0
Notes payable	0	0
Derivative liabilities	0	0
Accrued interest payable	0	0
Carrying Value
Financial assets
Cash and cash equivalents	265,402	231,199
Time deposits in financial institutions	1,900	1,900
Securities available for sale	393,586	345,695
FHLB and other bank stock	39,844	42,241
Loans held for sale	1,240,942	1,187,090
Loans and leases receivable, net of allowance	3,904,370	3,919,642
Accrued interest receivable	14,970	15,113
Derivative assets	13,555	6,379
Financial liabilities
Deposits	4,861,992	4,671,831
Advances from Federal Home Loan Bank	545,000	633,000
Other borrowings	15,000
Notes payable	92,668	93,569
Derivative liabilities	4,552	3,235
Accrued interest payable	$2,016	$2,044

SECURITIES_AVAILABLE_FOR_SALE_1

SECURITIES AVAILABLE FOR SALE - Summary of Amortized Cost and Fair Value (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$389,437	$344,878
Gross Unrealized Gains	4,328	1,435
Gross Unrealized Losses	-179	-618
Fair Value	393,586	345,695
SBA loan pool securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,600	1,697
Gross Unrealized Gains	35	18
Gross Unrealized Losses	0	0
Fair Value	1,635	1,715
U.S. government-sponsored entities and agency securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,943	1,940
Gross Unrealized Gains	58	42
Gross Unrealized Losses	0	0
Fair Value	2,001	1,982
Private label residential mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,607	3,169
Gross Unrealized Gains	11	12
Gross Unrealized Losses	-3	-13
Fair Value	2,615	3,168
Agency mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	383,287	338,072
Gross Unrealized Gains	4,224	1,363
Gross Unrealized Losses	-176	-605
Fair Value	$387,335	$338,830

SECURITIES_AVAILABLE_FOR_SALE_2

SECURITIES AVAILABLE FOR SALE - Contractual Maturity Schedule (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Amortized Cost
Within one year	$0
One to five years	1,943
Five to ten years	0
Greater than ten years	0
SBA loan pool, private label residential mortgage-backed and agency mortgage-backed securities	387,494
Amortized Cost	389,437	344,878
Fair Value
Within one year	0
One to five years	2,001
Five to ten years	0
Greater than ten years	0
SBA loan pool, private label residential mortgage-backed and agency mortgage-backed securities	391,585
Total	$393,586	$345,695

SECURITIES_AVAILABLE_FOR_SALE_3

SECURITIES AVAILABLE FOR SALE - Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Net realized gains (losses) on sales of securities available for sale	($2)	$507
Proceeds from sales of securities available for sale	174	50,973
Tax benefit on sales of securities available for sale	-1	0
Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Gross realized gains on sales of securities available for sale	0	545
Gross realized losses on sales of securities available for sale	-2	-38
Net realized gains (losses) on sales of securities available for sale	($2)	$507

SECURITIES_AVAILABLE_FOR_SALE_4

SECURITIES AVAILABLE FOR SALE - Additional Information (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
	security
Schedule of Available-for-sale Securities [Line Items]
Securities available for sale, pledged	$32,200,000	$27,100,000
Securities available for sale portfolio	96
Securities in unrealized loss position	33
Amount of rated securities portfolio	393,586,000	345,695,000
AAA, AA or A
Schedule of Available-for-sale Securities [Line Items]
Amount of rated securities portfolio	392,500,000
BBB
Schedule of Available-for-sale Securities [Line Items]
Amount of rated securities portfolio	$1,000,000

SECURITIES_AVAILABLE_FOR_SALE_5

SECURITIES AVAILABLE FOR SALE - Summary of Investment Securities with Unrealized Losses (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value
Less Than 12 Months	$33,858	$68,572
12 Months or Longer	12,186	23,567
Total	46,044	92,139
Gross Unrealized Losses
Less Than 12 Months	-112	-341
12 Months or Longer	-67	-277
Total	-179	-618
Private label residential mortgage-backed securities
Fair Value
Less Than 12 Months	176	372
12 Months or Longer	850	1,355
Total	1,026	1,727
Gross Unrealized Losses
Less Than 12 Months	-1	-9
12 Months or Longer	-2	-4
Total	-3	-13
Agency mortgage-backed securities
Fair Value
Less Than 12 Months	33,682	68,200
12 Months or Longer	11,336	22,212
Total	45,018	90,412
Gross Unrealized Losses
Less Than 12 Months	-111	-332
12 Months or Longer	-65	-273
Total	($176)	($605)

LOANS_AND_LEASES_AND_ALLOWANCE2

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Schedule of Loans and Leases Receivable (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,933,715	3,949,122	$2,396,995
Allowance for loan and lease losses	-29,345	-29,480	-20,003	-18,805
Loans and leases receivable, net	3,904,370	3,919,642
Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	100.00%	100.00%
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	489,229	490,900	299,184
Allowance for loan and lease losses	-6,484	-6,910	-2,367	-1,822
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	975,734	999,857	560,581
Allowance for loan and lease losses	-3,904	-3,840	-6,449	-5,484
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	940,053	955,683	155,382
Allowance for loan and lease losses	-7,164	-7,179	-2,720	-2,566
SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	48,254	36,155	26,541
Allowance for loan and lease losses	-566	-335	-211	-235
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	38,081	42,198	25,144
Allowance for loan and lease losses	-695	-846	-352	-244
Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	102,012	85,749	48,537
Allowance for loan and lease losses	-1,195	-873	-622	-428
Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,049,176	1,048,485
Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	119,958	123,177
Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,748	4,979
Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	166,470	161,939
Purchased Credit Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	241,798	246,897
Purchased Credit Impaired | Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	6.10%	6.30%
Purchased Credit Impaired | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,079	1,134
Purchased Credit Impaired | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	10,432	11,527
Purchased Credit Impaired | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Purchased Credit Impaired | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,136	3,157
Purchased Credit Impaired | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	227,151	231,079
Purchased Credit Impaired | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	353,825	350,575
Non-Traditional Mortgages (NTM) | Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	9.00%	8.90%
Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	348,964	345,483
Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - second liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,861	5,092
Non-Traditional Mortgages (NTM) | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	229,006	222,306
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	119,958	123,177
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,748	4,979
Non-Traditional Mortgages (NTM) | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	113	113
Traditional Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,338,092	3,351,650
Traditional Loans | Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	84.90%	84.80%
Traditional Loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	488,150	489,766
Traditional Loans | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	965,302	988,330
Traditional Loans | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	940,053	955,683
Traditional Loans | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	45,118	32,998
Traditional Loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	38,081	42,198
Traditional Loans | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	102,012	85,749
Traditional Loans | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	593,019	595,100
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Traditional Loans | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	166,357	161,826
Total NTM and Traditional Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,691,917	3,702,225
Total NTM and Traditional Loans | Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	93.90%	93.70%
Total NTM and Traditional Loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	488,150	489,766
Total NTM and Traditional Loans | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	965,302	988,330
Total NTM and Traditional Loans | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	940,053	955,683
Total NTM and Traditional Loans | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	45,118	32,998
Total NTM and Traditional Loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	38,081	42,198
Total NTM and Traditional Loans | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	102,012	85,749
Total NTM and Traditional Loans | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	822,025	817,406
Total NTM and Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	119,958	123,177
Total NTM and Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,748	4,979
Total NTM and Traditional Loans | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	166,470	161,939

LOANS_AND_LEASES_AND_ALLOWANCE3

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Additional Information (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	Loan	Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$3,933,715,000	$2,396,995,000	3,949,122,000
Number of Loans	2	0
Loans delinquent	60 days
Unpaid principal balances of PCI loans sold		27,700,000
Carrying value of loans sold		16,100,000
Gain (loss) on PCI loans sold		2,300,000
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded loan commitments	1,900,000		1,900,000
Loan Portfolio Concentration Risk | Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	100.00%		100.00%
Non-Traditional Mortgages (NTM)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	353,825,000		350,575,000
Increase (decrease) in loans receivable	3,300,000
Increase (decrease) in loans receivable, percentage	0.90%
Non-Traditional Mortgages (NTM) | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	124,700,000		128,200,000
Interest only notes balloon payment period	15 years
Non-Traditional Mortgages (NTM) | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	216,900,000		209,300,000
Non-Traditional Mortgages (NTM) | Negative amortization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	12,200,000		13,100,000
Non-Traditional Mortgages (NTM) | Loan Portfolio Concentration Risk | Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	9.00%		8.90%
Nonperforming Financing Receivable | Non-Traditional Mortgages (NTM) | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	10,700,000		12,500,000
Nonperforming Financing Receivable | Non-Traditional Mortgages (NTM) | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,000,000		2,000,000
Nonperforming Financing Receivable | Non-Traditional Mortgages (NTM) | Negative amortization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$0		0

LOANS_AND_LEASES_AND_ALLOWANCE4

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Non Traditional Mortgages Portfolio (Detail) (USD $)	3 Months Ended	12 Months Ended	0 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
			Loan	Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	3,933,715	3,949,122	$3,933,715	$3,949,122	$2,396,995
Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	100.00%	100.00%
Non-Traditional Mortgages (NTM)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count	402	407
Amount	353,825	350,575	353,825	350,575
Non-Traditional Mortgages (NTM) | Nontraditional Mortgage Loans Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	100.00%	100.00%
Non-Traditional Mortgages (NTM) | Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	9.00%	8.90%
Non-Traditional Mortgages (NTM) | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	124,700	128,200	124,700	128,200
Non-Traditional Mortgages (NTM) | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	216,900	209,300	216,900	209,300
Non-Traditional Mortgages (NTM) | Negative amortization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	12,200	13,100	12,200	13,100
Non-Traditional Mortgages (NTM) | First lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count	382	387
Amount	348,964	345,483	348,964	345,483
Non-Traditional Mortgages (NTM) | First lien | Nontraditional Mortgage Loans Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	98.60%	98.50%
Non-Traditional Mortgages (NTM) | First lien | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count	147	148	147	148
Amount	119,958	123,177	119,958	123,177
Non-Traditional Mortgages (NTM) | First lien | Green Loans | Nontraditional Mortgage Loans Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	33.90%	35.10%
Non-Traditional Mortgages (NTM) | First lien | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count	204	207
Amount	216,765	209,207	216,765	209,207
Non-Traditional Mortgages (NTM) | First lien | Interest Only Loans | Nontraditional Mortgage Loans Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	61.20%	59.70%
Non-Traditional Mortgages (NTM) | First lien | Negative amortization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count	31	32
Amount	12,241	13,099	12,241	13,099
Non-Traditional Mortgages (NTM) | First lien | Negative amortization | Nontraditional Mortgage Loans Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	3.50%	3.70%
Non-Traditional Mortgages (NTM) | Second lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count	20	20
Amount	4,861	5,092	4,861	5,092
Non-Traditional Mortgages (NTM) | Second lien | Nontraditional Mortgage Loans Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	1.40%	1.50%
Non-Traditional Mortgages (NTM) | Second lien | Green Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count	19	19
Amount	4,748	4,979	4,748	4,979
Non-Traditional Mortgages (NTM) | Second lien | Green Loans | Nontraditional Mortgage Loans Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	1.30%	1.40%
Non-Traditional Mortgages (NTM) | Second lien | Interest Only Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Count	1	1
Amount	113	113	$113	$113
Non-Traditional Mortgages (NTM) | Second lien | Interest Only Loans | Nontraditional Mortgage Loans Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk percentage	0.10%	0.10%

LOANS_AND_LEASES_AND_ALLOWANCE5

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Non Traditional Mortgage Performance by Credit Score (Detail) (USD $)	3 Months Ended	12 Months Ended	0 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
	Loan	Loan	Loan	Loan
Financing Receivable, Recorded Investment [Line Items]
Amount	$3,933,715	$3,949,122	$3,933,715	$3,949,122	$2,396,995
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment [Line Items]
Count	402	407
Amount	353,825	350,575	353,825	350,575
Amount change	3,300
Percent Change	0.90%
Non-Traditional Mortgages (NTM) | First lien
Financing Receivable, Recorded Investment [Line Items]
Count	382	387
Amount	348,964	345,483	348,964	345,483
Non-Traditional Mortgages (NTM) | Green Loans
Financing Receivable, Recorded Investment [Line Items]
Amount	124,700	128,200	124,700	128,200
Non-Traditional Mortgages (NTM) | Green Loans | First lien
Financing Receivable, Recorded Investment [Line Items]
Count	147	148	147	148
Amount	119,958	123,177	119,958	123,177
Count Change			-1
Amount change			-3,219
Percent Change			0.00%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage			100.00%	100.00%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | Greater than 800
Financing Receivable, Recorded Investment [Line Items]
Count			28	28
Amount	19,448	20,248	19,448	20,248
Count Change			0
Amount change			-800
Percent Change			-0.20%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | Greater than 800 | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage			16.20%	16.40%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | 700-799
Financing Receivable, Recorded Investment [Line Items]
Count			72	72
Amount	50,769	52,532	50,769	52,532
Count Change			0
Amount change			-1,763
Percent Change			-0.40%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | 700-799 | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage			42.30%	42.70%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | 600-699
Financing Receivable, Recorded Investment [Line Items]
Count			28	29
Amount	30,431	31,053	30,431	31,053
Count Change			-1
Amount change			-622
Percent Change			0.20%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | 600-699 | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage			25.40%	25.20%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | Less than 600
Financing Receivable, Recorded Investment [Line Items]
Count			8	8
Amount	11,873	11,893	11,873	11,893
Count Change			0
Amount change			-20
Percent Change			0.20%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | Less than 600 | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage			9.90%	9.70%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | No FICO
Financing Receivable, Recorded Investment [Line Items]
Count			11	11
Amount	7,437	7,451	7,437	7,451
Count Change			0
Amount change			($14)
Percent Change			0.20%
Non-Traditional Mortgages (NTM) | Green Loans | First lien | No FICO | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage			6.20%	6.00%

LOANS_AND_LEASES_AND_ALLOWANCE6

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Non Traditional Mortgage Performance Loan to Value Ratio (Detail) (USD $)	3 Months Ended	12 Months Ended	0 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
	Loan	Loan	Loan	Loan
Financing Receivable, Recorded Investment [Line Items]
Amount	$3,933,715	$3,949,122	$3,933,715	$3,949,122	$2,396,995
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment [Line Items]
Count	402	407
Amount	353,825	350,575	353,825	350,575
Non-Traditional Mortgages (NTM) | Green Loans
Financing Receivable, Recorded Investment [Line Items]
Amount	124,700	128,200	124,700	128,200
Non-Traditional Mortgages (NTM) | Interest Only Loans
Financing Receivable, Recorded Investment [Line Items]
Amount	216,900	209,300	216,900	209,300
Non-Traditional Mortgages (NTM) | Negative amortization
Financing Receivable, Recorded Investment [Line Items]
Amount	12,200	13,100	12,200	13,100
Non-Traditional Mortgages (NTM) | First lien
Financing Receivable, Recorded Investment [Line Items]
Count	382	387
Amount	348,964	345,483	348,964	345,483
Non-Traditional Mortgages (NTM) | First lien | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	100.00%	100.00%
Non-Traditional Mortgages (NTM) | First lien | Green Loans
Financing Receivable, Recorded Investment [Line Items]
Count	147	148	147	148
Amount	119,958	123,177	119,958	123,177
Non-Traditional Mortgages (NTM) | First lien | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	100.00%	100.00%
Non-Traditional Mortgages (NTM) | First lien | Interest Only Loans
Financing Receivable, Recorded Investment [Line Items]
Count	204	207
Amount	216,765	209,207	216,765	209,207
Non-Traditional Mortgages (NTM) | First lien | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	100.00%	100.00%
Non-Traditional Mortgages (NTM) | First lien | Negative amortization
Financing Receivable, Recorded Investment [Line Items]
Count	31	32
Amount	12,241	13,099	12,241	13,099
Non-Traditional Mortgages (NTM) | First lien | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	100.00%	100.00%
Non-Traditional Mortgages (NTM) | First lien | Less than 61
Financing Receivable, Recorded Investment [Line Items]
Count	152	152
Amount	161,248	158,133	161,248	158,133
Non-Traditional Mortgages (NTM) | First lien | Less than 61 | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	46.20%	45.80%
Non-Traditional Mortgages (NTM) | First lien | Less than 61 | Green Loans
Financing Receivable, Recorded Investment [Line Items]
Count	77	77
Amount	56,136	58,856	56,136	58,856
Non-Traditional Mortgages (NTM) | First lien | Less than 61 | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	46.70%	47.80%
Non-Traditional Mortgages (NTM) | First lien | Less than 61 | Interest Only Loans
Financing Receivable, Recorded Investment [Line Items]
Count	60	60
Amount	99,152	93,254	99,152	93,254
Non-Traditional Mortgages (NTM) | First lien | Less than 61 | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	45.80%	44.70%
Non-Traditional Mortgages (NTM) | First lien | Less than 61 | Negative amortization
Financing Receivable, Recorded Investment [Line Items]
Count	15	15
Amount	5,960	6,023	5,960	6,023
Non-Traditional Mortgages (NTM) | First lien | Less than 61 | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	48.70%	46.00%
Non-Traditional Mortgages (NTM) | First lien | 61-80
Financing Receivable, Recorded Investment [Line Items]
Count	109	111
Amount	134,921	133,550	134,921	133,550
Non-Traditional Mortgages (NTM) | First lien | 61-80 | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	38.70%	38.60%
Non-Traditional Mortgages (NTM) | First lien | 61-80 | Green Loans
Financing Receivable, Recorded Investment [Line Items]
Count	45	45
Amount	46,129	46,177	46,129	46,177
Non-Traditional Mortgages (NTM) | First lien | 61-80 | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	38.50%	37.50%
Non-Traditional Mortgages (NTM) | First lien | 61-80 | Interest Only Loans
Financing Receivable, Recorded Investment [Line Items]
Count	52	54
Amount	83,480	81,472	83,480	81,472
Non-Traditional Mortgages (NTM) | First lien | 61-80 | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	38.50%	38.90%
Non-Traditional Mortgages (NTM) | First lien | 61-80 | Negative amortization
Financing Receivable, Recorded Investment [Line Items]
Count	12	12
Amount	5,312	5,901	5,312	5,901
Non-Traditional Mortgages (NTM) | First lien | 61-80 | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	43.40%	45.00%
Non-Traditional Mortgages (NTM) | First lien | 81-100
Financing Receivable, Recorded Investment [Line Items]
Count	54	55
Amount	27,875	27,554	27,875	27,554
Non-Traditional Mortgages (NTM) | First lien | 81-100 | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	8.00%	8.00%
Non-Traditional Mortgages (NTM) | First lien | 81-100 | Green Loans
Financing Receivable, Recorded Investment [Line Items]
Count	18	18
Amount	11,833	11,846	11,833	11,846
Non-Traditional Mortgages (NTM) | First lien | 81-100 | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	9.90%	9.60%
Non-Traditional Mortgages (NTM) | First lien | 81-100 | Interest Only Loans
Financing Receivable, Recorded Investment [Line Items]
Count	33	33
Amount	15,463	14,927	15,463	14,927
Non-Traditional Mortgages (NTM) | First lien | 81-100 | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	7.10%	7.10%
Non-Traditional Mortgages (NTM) | First lien | 81-100 | Negative amortization
Financing Receivable, Recorded Investment [Line Items]
Count	3	4
Amount	579	781	579	781
Non-Traditional Mortgages (NTM) | First lien | 81-100 | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	4.70%	6.00%
Non-Traditional Mortgages (NTM) | First lien | Greater than 100
Financing Receivable, Recorded Investment [Line Items]
Count	67	69
Amount	24,920	26,246	24,920	26,246
Non-Traditional Mortgages (NTM) | First lien | Greater than 100 | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	7.10%	7.60%
Non-Traditional Mortgages (NTM) | First lien | Greater than 100 | Green Loans
Financing Receivable, Recorded Investment [Line Items]
Count	7	8
Amount	5,860	6,298	5,860	6,298
Non-Traditional Mortgages (NTM) | First lien | Greater than 100 | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	4.90%	5.10%
Non-Traditional Mortgages (NTM) | First lien | Greater than 100 | Interest Only Loans
Financing Receivable, Recorded Investment [Line Items]
Count	59	60
Amount	18,670	19,554	18,670	19,554
Non-Traditional Mortgages (NTM) | First lien | Greater than 100 | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	8.60%	9.30%
Non-Traditional Mortgages (NTM) | First lien | Greater than 100 | Negative amortization
Financing Receivable, Recorded Investment [Line Items]
Count	1	1
Amount	$390	$394	$390	$394
Non-Traditional Mortgages (NTM) | First lien | Greater than 100 | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio
Financing Receivable, Recorded Investment [Line Items]
Concentration risk percentage	3.20%	3.00%

LOANS_AND_LEASES_AND_ALLOWANCE7

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Allowance for Loan and Lease Losses (Detail) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$29,480	$18,805	$18,805
Loans and leases charged off	-357	-203
Recoveries of loans and leases previously charged off	222	435
Transfer of loans from (to) held-for-sale	0	-963	-963
Provision for loan and lease losses	0	1,929
Balance at end of period	$29,345	$20,003	$29,480

LOANS_AND_LEASES_AND_ALLOWANCE8

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 $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$29,480	$18,805	$18,805
Charge-offs	-357	-203
Recoveries	222	435
Transfer of loans from (to) held-for-sale	0	-963	-963
Provision	0	1,929
Balance at end of period	29,345	20,003	29,480
Individually evaluated for impairment	1,199	62
Collectively evaluated for impairment	27,940	19,745
Acquired with deteriorated credit quality	206	196
Loans:
Individually evaluated for impairment	32,119	15,264
Collectively evaluated for impairment	3,659,798	2,068,308
Acquired with deteriorated credit quality	241,798	313,423
Total ending loan balances	3,933,715	2,396,995	3,949,122
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	6,910	1,822	1,822
Charge-offs	-11	0
Recoveries	3	26
Transfer of loans from (to) held-for-sale			0
Provision	-418	519
Balance at end of period	6,484	2,367	6,910
Individually evaluated for impairment	749	0
Collectively evaluated for impairment	5,677	2,367
Acquired with deteriorated credit quality	58	0
Loans:
Individually evaluated for impairment	8,087	0
Collectively evaluated for impairment	480,063	297,646
Acquired with deteriorated credit quality	1,079	1,538
Total ending loan balances	489,229	299,184	490,900
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	3,840	5,484	5,484
Charge-offs	-259	0
Recoveries	132	316
Transfer of loans from (to) held-for-sale			0
Provision	191	649
Balance at end of period	3,904	6,449	3,840
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,792	6,449
Acquired with deteriorated credit quality	112	0
Loans:
Individually evaluated for impairment	373	3,218
Collectively evaluated for impairment	964,929	542,750
Acquired with deteriorated credit quality	10,432	14,613
Total ending loan balances	975,734	560,581	999,857
Multi-family
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	7,179	2,566	2,566
Charge-offs	0	0
Recoveries	3	0
Transfer of loans from (to) held-for-sale			0
Provision	-18	154
Balance at end of period	7,164	2,720	7,179
Individually evaluated for impairment	0	37
Collectively evaluated for impairment	7,164	2,683
Acquired with deteriorated credit quality	0	0
Loans:
Individually evaluated for impairment	1,566	1,674
Collectively evaluated for impairment	938,487	153,708
Acquired with deteriorated credit quality	0	0
Total ending loan balances	940,053	155,382	955,683
SBA
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	335	235	235
Charge-offs	0	-17
Recoveries	72	92
Transfer of loans from (to) held-for-sale			0
Provision	159	-99
Balance at end of period	566	211	335
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	547	211
Acquired with deteriorated credit quality	19	0
Loans:
Individually evaluated for impairment	9	0
Collectively evaluated for impairment	45,109	23,064
Acquired with deteriorated credit quality	3,136	3,477
Total ending loan balances	48,254	26,541	36,155
Construction
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	846	244	244
Charge-offs	0	0
Recoveries	0	0
Transfer of loans from (to) held-for-sale			0
Provision	-151	108
Balance at end of period	695	352	846
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	695	352
Acquired with deteriorated credit quality	0	0
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	38,081	25,144
Acquired with deteriorated credit quality	0	0
Total ending loan balances	38,081	25,144	42,198
Lease financing
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	873	428	428
Charge-offs	-87	0
Recoveries	0	0
Transfer of loans from (to) held-for-sale			0
Provision	409	194
Balance at end of period	1,195	622	873
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,195	622
Acquired with deteriorated credit quality	0	0
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	102,012	48,537
Acquired with deteriorated credit quality	0	0
Total ending loan balances	102,012	48,537	85,749
Single Family Residential Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	7,192	7,044	7,044
Charge-offs	0	-151
Recoveries	0	0
Transfer of loans from (to) held-for-sale			-963
Provision	-232	217
Balance at end of period	6,960	6,147	7,192
Individually evaluated for impairment	450	25
Collectively evaluated for impairment	6,493	5,926
Acquired with deteriorated credit quality	17	196
Loans:
Individually evaluated for impairment	21,790	10,160
Collectively evaluated for impairment	920,193	856,664
Acquired with deteriorated credit quality	227,151	292,039
Total ending loan balances	1,169,134	1,158,863
Other Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	2,305	532	532
Charge-offs	0	-35
Recoveries	12	1
Transfer of loans from (to) held-for-sale			0
Provision	-304	284
Balance at end of period	2,013	782	2,305
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,013	782
Acquired with deteriorated credit quality	0	0
Loans:
Individually evaluated for impairment	294	212
Collectively evaluated for impairment	170,924	120,795
Acquired with deteriorated credit quality	0	1,756
Total ending loan balances	171,218	122,763
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	0	450	450
Charge-offs	0	0
Recoveries	0	0
Transfer of loans from (to) held-for-sale			0
Provision	364	-97
Balance at end of period	364	353	0
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	364	353
Acquired with deteriorated credit quality	0	0
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Acquired with deteriorated credit quality	0	0
Total ending loan balances	$0	$0

LOANS_AND_LEASES_AND_ALLOWANCE9

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Loans and Leases Individually Evaluated for Impairment by Class of Loans (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Unpaid Principal Balance
Total	$34,185		$35,452
Recorded Investment
Total	32,119		33,478
Allowance for Loan and Lease Losses	1,199		1,288
Average Recorded Investment	32,329	15,584
Interest Income Recognized	323	128
Cash Basis Interest Recognized	334	136
Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded	4,085		4,803
With an allowance recorded	4,179		4,310
Recorded Investment
With no related allowance recorded	3,953		4,708
With an allowance recorded	4,134		4,313
Allowance for Loan and Lease Losses	749		788
Average Recorded Investment	8,199	0
Interest Income Recognized	119	0
Cash Basis Interest Recognized	130	0
Commercial real estate
Unpaid Principal Balance
With no related allowance recorded	1,233		1,910
With an allowance recorded	0		0
Recorded Investment
With no related allowance recorded	373		1,017
With an allowance recorded	0		0
Allowance for Loan and Lease Losses	0		0
Average Recorded Investment	383	3,417
Interest Income Recognized	10	49
Cash Basis Interest Recognized	10	57
Multi-family
Unpaid Principal Balance
With no related allowance recorded	1,732		1,747
With an allowance recorded	0		0
Recorded Investment
With no related allowance recorded	1,566		1,594
With an allowance recorded	0		0
Allowance for Loan and Lease Losses	0		0
Average Recorded Investment	1,580	1,684
Interest Income Recognized	13	13
Cash Basis Interest Recognized	15	13
SBA
Unpaid Principal Balance
With no related allowance recorded	23		24
Recorded Investment
With no related allowance recorded	9		6
Average Recorded Investment	7	0
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Single family residential mortgage
Unpaid Principal Balance
With no related allowance recorded	17,396		15,729
With an allowance recorded	5,243		6,422
Recorded Investment
With no related allowance recorded	16,725		15,131
With an allowance recorded	5,065		6,206
Allowance for Loan and Lease Losses	450		500
Average Recorded Investment	21,866	10,270
Interest Income Recognized	179	65
Cash Basis Interest Recognized	176	65
Other consumer
Unpaid Principal Balance
With no related allowance recorded	294		507
With an allowance recorded	0		0
Recorded Investment
With no related allowance recorded	294		503
With an allowance recorded	0		0
Allowance for Loan and Lease Losses	0		0
Average Recorded Investment	294	213
Interest Income Recognized	2	1
Cash Basis Interest Recognized	$3	$1

Recovered_Sheet1

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Non Accrual Loans and Loans Past Due 90 Days Still on Accrual (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due 90 days or more and still accruing	$0	$0
The Company maintains specific allowances for these loans of $80 in 2014 and $95 in 2013	42,754	38,381
Specific allowance on non accrual loans	584	478
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due 90 days or more and still accruing	0	0
The Company maintains specific allowances for these loans of $80 in 2014 and $95 in 2013	13,635	14,592
Traditional Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due 90 days or more and still accruing	0	0
The Company maintains specific allowances for these loans of $80 in 2014 and $95 in 2013	$29,119	$23,789

Recovered_Sheet2

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Composition of Nonaccrual Loans and Leases (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	$42,754	$38,381
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	6,676	7,143
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	1,026	1,017
Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	2,005	1,834
SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	342	285
Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	663	100
Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	21,328	15,419
Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	10,678	12,334
Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	209
Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	36	40
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	13,635	14,592
Non-Traditional Mortgages (NTM) | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Non-Traditional Mortgages (NTM) | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Non-Traditional Mortgages (NTM) | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Non-Traditional Mortgages (NTM) | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Non-Traditional Mortgages (NTM) | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Non-Traditional Mortgages (NTM) | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Non-Traditional Mortgages (NTM) | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	2,957	2,049
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	10,678	12,334
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	209
Non-Traditional Mortgages (NTM) | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Traditional Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	29,119	23,789
Traditional Loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	6,676	7,143
Traditional Loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	1,026	1,017
Traditional Loans | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	2,005	1,834
Traditional Loans | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	342	285
Traditional Loans | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Traditional Loans | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	663	100
Traditional Loans | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	18,371	13,370
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Traditional Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	$36	$40

Recovered_Sheet3

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Aging of Recorded Investment in Past Due Loans and Leases (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	$47,566	$46,421
60 - 89 Days Past Due	9,450	11,914
Greater than 89 Days Past due	27,524	22,596
Total Past Due	84,540	80,931
Current	3,849,175	3,868,191
Total ending loan balances	3,933,715	3,949,122	2,396,995
Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	1,049,176	1,048,485
Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	119,958	123,177
Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	4,748	4,979
Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	166,470	161,939
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	489,229	490,900	299,184
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	975,734	999,857	560,581
Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	940,053	955,683	155,382
SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	48,254	36,155	26,541
Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	38,081	42,198	25,144
Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	102,012	85,749	48,537
Purchased Credit Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	13,267	14,140
60 - 89 Days Past Due	3,108	3,501
Greater than 89 Days Past due	6,986	5,761
Total Past Due	23,361	23,402
Current	218,437	223,495
Total ending loan balances	241,798	246,897
Purchased Credit Impaired | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	11,863	13,262
60 - 89 Days Past Due	3,100	3,501
Greater than 89 Days Past due	5,315	4,510
Total Past Due	20,278	21,273
Current	206,873	209,806
Total ending loan balances	227,151	231,079
Purchased Credit Impaired | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Purchased Credit Impaired | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Purchased Credit Impaired | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Purchased Credit Impaired | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	736	0
60 - 89 Days Past Due	0	0
Greater than 89 Days Past due	0	0
Total Past Due	736	0
Current	343	1,134
Total ending loan balances	1,079	1,134
Purchased Credit Impaired | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
Greater than 89 Days Past due	1,055	951
Total Past Due	1,055	951
Current	9,377	10,576
Total ending loan balances	10,432	11,527
Purchased Credit Impaired | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Purchased Credit Impaired | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	668	878
60 - 89 Days Past Due	8	0
Greater than 89 Days Past due	616	300
Total Past Due	1,292	1,178
Current	1,844	1,979
Total ending loan balances	3,136	3,157
Purchased Credit Impaired | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Purchased Credit Impaired | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	10,197	10,562
60 - 89 Days Past Due	419	165
Greater than 89 Days Past due	2,957	2,695
Total Past Due	13,573	13,422
Current	340,252	337,153
Total ending loan balances	353,825	350,575
Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	348,964	345,483
Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	4,861	5,092
Non-Traditional Mortgages (NTM) | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,121	1,415
60 - 89 Days Past Due	419	165
Greater than 89 Days Past due	2,957	2,049
Total Past Due	4,497	3,629
Current	224,509	218,677
Total ending loan balances	229,006	222,306
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	9,076	8,853
60 - 89 Days Past Due	0	0
Greater than 89 Days Past due	0	437
Total Past Due	9,076	9,290
Current	110,882	113,887
Total ending loan balances	119,958	123,177
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	294
60 - 89 Days Past Due	0	0
Greater than 89 Days Past due	0	209
Total Past Due	0	503
Current	4,748	4,476
Total ending loan balances	4,748	4,979
Non-Traditional Mortgages (NTM) | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
Greater than 89 Days Past due	0	0
Total Past Due	0	0
Current	113	113
Total ending loan balances	113	113
Non-Traditional Mortgages (NTM) | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Non-Traditional Mortgages (NTM) | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Non-Traditional Mortgages (NTM) | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Non-Traditional Mortgages (NTM) | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Non-Traditional Mortgages (NTM) | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Non-Traditional Mortgages (NTM) | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Traditional Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	24,102	21,719
60 - 89 Days Past Due	5,923	8,248
Greater than 89 Days Past due	17,581	14,140
Total Past Due	47,606	44,107
Current	3,290,486	3,307,543
Total ending loan balances	3,338,092	3,351,650
Traditional Loans | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	17,453	17,185
60 - 89 Days Past Due	2,765	7,878
Greater than 89 Days Past due	15,574	10,411
Total Past Due	35,792	35,474
Current	557,227	559,626
Total ending loan balances	593,019	595,100
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total ending loan balances	0	0
Traditional Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,150	9
60 - 89 Days Past Due	96	89
Greater than 89 Days Past due	0	5
Total Past Due	1,246	103
Current	165,111	161,723
Total ending loan balances	166,357	161,826
Traditional Loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	601	79
60 - 89 Days Past Due	16	37
Greater than 89 Days Past due	170	3,370
Total Past Due	787	3,486
Current	487,363	486,280
Total ending loan balances	488,150	489,766
Traditional Loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	3,230	2,237
60 - 89 Days Past Due	495	0
Greater than 89 Days Past due	653	0
Total Past Due	4,378	2,237
Current	960,924	986,093
Total ending loan balances	965,302	988,330
Traditional Loans | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	629	1,072
60 - 89 Days Past Due	2,487	208
Greater than 89 Days Past due	207	0
Total Past Due	3,323	1,280
Current	936,730	954,403
Total ending loan balances	940,053	955,683
Traditional Loans | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	6	82
60 - 89 Days Past Due	0	0
Greater than 89 Days Past due	314	254
Total Past Due	320	336
Current	44,798	32,662
Total ending loan balances	45,118	32,998
Traditional Loans | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
Greater than 89 Days Past due	0	0
Total Past Due	0	0
Current	38,081	42,198
Total ending loan balances	38,081	42,198
Traditional Loans | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,033	1,055
60 - 89 Days Past Due	64	36
Greater than 89 Days Past due	663	100
Total Past Due	1,760	1,191
Current	100,252	84,558
Total ending loan balances	$102,012	$85,749

Recovered_Sheet4

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Loans and Leases by Class Modified as Troubled Debt Restructurings (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	Loan	Loan
Troubled Debt Restructurings [Line Items]
Number of Loans	2	0
Pre- Modification Outstanding Recorded Investment	$1,430	$0
Post-Modification Outstanding Recorded Investment	1,430	0
Single family residential mortgage
Troubled Debt Restructurings [Line Items]
Number of Loans	2	0
Pre- Modification Outstanding Recorded Investment	1,430	0
Post-Modification Outstanding Recorded Investment	$1,430	$0

Recovered_Sheet5

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Components of Troubled Debt Restructured Loans and Leases (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2013
In Thousands, unless otherwise specified
Commercial real estate
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	$0	$0
SBA
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	9	6
Single family residential mortgage
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	4,543	4,269
Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	4,549	3,442
Consumer Home Equity Loan | Second lien
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	294	294
Other consumer
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	9,395	8,011
Non-Traditional Mortgages (NTM) | Commercial real estate
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	0	0
Non-Traditional Mortgages (NTM) | SBA
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	0	0
Non-Traditional Mortgages (NTM) | Single family residential mortgage
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	0	0
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	4,549	3,442
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Second lien
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	294	294
Non-Traditional Mortgages (NTM) | Other consumer
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	4,843	3,736
Traditional Loans | Commercial real estate
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	0	0
Traditional Loans | SBA
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	9	6
Traditional Loans | Single family residential mortgage
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	4,543	4,269
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	0	0
Traditional Loans | Consumer Home Equity Loan | Second lien
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	0	0
Traditional Loans | Other consumer
Troubled Debt Restructurings [Line Items]
Troubled debt restructured loans and leases	$4,552	$4,275

Recovered_Sheet6

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Risk Categories for Loans and Leases (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]
Gross loans	$3,933,715	$3,949,122	$2,396,995
Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,566,394	3,581,683
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	42,586	33,612
Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	97,538	103,016
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	301	0
Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	226,896	230,811
Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,049,176	1,048,485
Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	119,958	123,177
Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,748	4,979
Other consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	166,470	161,939
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	489,229	490,900	299,184
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	975,734	999,857	560,581
Multi-family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	940,053	955,683	155,382
SBA
Financing Receivable, Recorded Investment [Line Items]
Gross loans	48,254	36,155	26,541
Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	38,081	42,198	25,144
Lease financing
Financing Receivable, Recorded Investment [Line Items]
Gross loans	102,012	85,749	48,537
Purchased Credit Impaired
Financing Receivable, Recorded Investment [Line Items]
Gross loans	241,798	246,897
Purchased Credit Impaired | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	6,156	7,457
Purchased Credit Impaired | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,320	1,336
Purchased Credit Impaired | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	7,426	7,293
Purchased Credit Impaired | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	226,896	230,811
Purchased Credit Impaired | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Gross loans	227,151	231,079
Purchased Credit Impaired | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	255	268
Purchased Credit Impaired | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	226,896	230,811
Purchased Credit Impaired | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,079	1,134
Purchased Credit Impaired | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	92	104
Purchased Credit Impaired | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	987	1,030
Purchased Credit Impaired | Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Commercial and industrial | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	10,432	11,527
Purchased Credit Impaired | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	5,700	6,676
Purchased Credit Impaired | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	974	985
Purchased Credit Impaired | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,758	3,866
Purchased Credit Impaired | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Commercial real estate | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | SBA
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,136	3,157
Purchased Credit Impaired | SBA | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	364	677
Purchased Credit Impaired | SBA | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	346	351
Purchased Credit Impaired | SBA | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	2,426	2,129
Purchased Credit Impaired | SBA | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | SBA | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment [Line Items]
Gross loans	353,825	350,575
Non-Traditional Mortgages (NTM) | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	329,972	329,270
Non-Traditional Mortgages (NTM) | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	5,097	678
Non-Traditional Mortgages (NTM) | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	18,455	20,627
Non-Traditional Mortgages (NTM) | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	301	0
Non-Traditional Mortgages (NTM) | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	348,964	345,483
Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,861	5,092
Non-Traditional Mortgages (NTM) | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Gross loans	229,006	222,306
Non-Traditional Mortgages (NTM) | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	224,683	219,747
Non-Traditional Mortgages (NTM) | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	2,041	279
Non-Traditional Mortgages (NTM) | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	2,282	2,280
Non-Traditional Mortgages (NTM) | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	119,958	123,177
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	100,428	104,640
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,056	399
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	16,173	18,138
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	301	0
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,748	4,979
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,748	4,770
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	209
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	113	113
Non-Traditional Mortgages (NTM) | Other consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	113	113
Non-Traditional Mortgages (NTM) | Other consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Other consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Other consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Other consumer | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | SBA
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Non-Traditional Mortgages (NTM) | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,338,092	3,351,650
Traditional Loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,230,266	3,244,956
Traditional Loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	36,169	31,598
Traditional Loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	71,657	75,096
Traditional Loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Gross loans	593,019	595,100
Traditional Loans | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	557,947	569,871
Traditional Loans | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	15,848	10,395
Traditional Loans | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	19,224	14,834
Traditional Loans | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	166,357	161,826
Traditional Loans | Other consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	166,243	161,701
Traditional Loans | Other consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	78	85
Traditional Loans | Other consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	36	40
Traditional Loans | Other consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Other consumer | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	488,150	489,766
Traditional Loans | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	476,344	477,319
Traditional Loans | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	106	117
Traditional Loans | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	11,700	12,330
Traditional Loans | Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Commercial and industrial | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	965,302	988,330
Traditional Loans | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	926,109	943,645
Traditional Loans | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	14,099	14,281
Traditional Loans | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	25,094	30,404
Traditional Loans | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Commercial real estate | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	940,053	955,683
Traditional Loans | Multi-family | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	919,956	932,438
Traditional Loans | Multi-family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	5,974	6,684
Traditional Loans | Multi-family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	14,123	16,561
Traditional Loans | Multi-family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Multi-family | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | SBA
Financing Receivable, Recorded Investment [Line Items]
Gross loans	45,118	32,998
Traditional Loans | SBA | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	44,301	32,171
Traditional Loans | SBA | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | SBA | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	817	827
Traditional Loans | SBA | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | SBA | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	38,081	42,198
Traditional Loans | Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	38,081	42,198
Traditional Loans | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Construction | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Construction | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Gross loans	102,012	85,749
Traditional Loans | Lease financing | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	101,285	85,613
Traditional Loans | Lease financing | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	64	36
Traditional Loans | Lease financing | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	663	100
Traditional Loans | Lease financing | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Lease financing | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	$0	$0

Recovered_Sheet7

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Carrying Amount of Purchased Credit Impaired Loans and Leases (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract]
Outstanding Balance	$295,180	$302,762
Carrying Amount	241,798	246,897
Commercial and industrial
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract]
Outstanding Balance	1,700	1,767
Carrying Amount	1,079	1,134
Commercial real estate
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract]
Outstanding Balance	12,052	13,708
Carrying Amount	10,432	11,527
SBA
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract]
Outstanding Balance	4,175	4,220
Carrying Amount	3,136	3,157
Single family residential mortgage
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract]
Outstanding Balance	277,253	283,067
Carrying Amount	$227,151	$231,079

Recovered_Sheet8

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Accretable Yield, or Income Expected to be Collected (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$92,301	$126,336
New loans or leases purchased	0	0
Accretion of income	-5,048	-7,169
Changes in expected cash flows	-25	131
Disposals	-1,933	-10,950
Balance at end of period	$85,295	$108,348

SERVICING_RIGHTS_Additional_In

SERVICING RIGHTS - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Transfers and Servicing [Abstract]
Income earned on mortgage servicing rights	($442,000)	$1,253,000
Unpaid principal balance	2,120,000,000		1,920,000,000
Escrow balances	8,100,000		8,300,000
Discount rate	7.25%
Prepayment speed	7.25%
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Servicing rights held for sale, carried at fair value	0		5,947,000
Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Servicing rights held for sale, carried at fair value	$0		$5,900,000

SERVICING_RIGHTS_Schedule_of_S

SERVICING RIGHTS - Schedule of Servicing Rights (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Transfers and Servicing [Abstract]
Mortgage servicing rights, at fair value	$21,165	$19,082	$18,553	$13,535
SBA servicing rights, at cost	664	484	327	348
Total	$21,829	$19,566

SERVICING_RIGHTS_Summary_of_Ke

SERVICING RIGHTS - Summary of Key Characteristics, Inputs and Economic Assumptions Used to Estimate Fair Value of MSRs (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Transfers and Servicing [Abstract]
Fair value of retained MSRs	$21,165	$13,135
Discount rate	9.84%	10.09%
Constant prepayment rate	12.98%	13.22%
Weighted-average life (in years)	6 years 0 months 15 days	5 years 9 months 18 days

SERVICING_RIGHTS_Mortgage_Serv

SERVICING RIGHTS - Mortgage Servicing Rights (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$19,082	$13,535
Additions	10,192	5,140
Changes in fair value resulting from valuation inputs or assumptions	-528	462
Sales of servicing rights	-5,862	0
Otherbloans paid off	-1,719	-584
Balance at end of period	$21,165	$18,553

SERVICING_RIGHTS_Small_Busines

SERVICING RIGHTS - Small Business Administration Servicing Rights (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	$484	$348
Additions	195	0
Amortization, including prepayments	-15	-21
Balance at end of period	$664	$327

OTHER_REAL_ESTATE_OWNED_Activi

OTHER REAL ESTATE OWNED - Activities in Other Real Estate Owned (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Other Real Estate and Foreclosed Assets [Roll Forward]
Balance at beginning of period	$423	$0
Additions	534	150
Sales and net direct write-downs	-437	0
Net change in valuation allowance	-22	0
Balance at end of period	$498	$150

OTHER_REAL_ESTATE_OWNED_Activi1

OTHER REAL ESTATE OWNED - Activities in Other Real Estate Owned Valuation Allowance (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Real Estate Owned Valuation Allowance [Roll Forward]
Balance at beginning of period	$32	$0
Additions	22	0
Net direct write-downs and removals from sale	0	0
Balance at end of period	$54	$0

OTHER_REAL_ESTATE_OWNED_Expens

OTHER REAL ESTATE OWNED - Expenses Related to Foreclosed Assets Included in Loan Servicing and Foreclosure Expenses (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Real Estate Owned, Disclosure of Detailed Components [Abstract]
Net gain on sales of other real estate owned	$17	$0
Operating expenses, net of rental income	0	0
Total	$17	$0

GOODWILL_AND_OTHER_INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$31,591,000		$31,591,000
Finite-Lived Intangible Assets [Line Items]
Aggregate amortization expense	1,544,000	939,000
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period	8 years 0 months 13 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]
Amortization period of other intangible assets	5 years
Remaining amortization period	3 years 10 months
Banking
Finite-Lived Intangible Assets [Line Items]
Goodwill transfered between segments	29,500,000
Mortgage Banking
Finite-Lived Intangible Assets [Line Items]
Goodwill transfered between segments	$2,100,000

GOODWILL_AND_OTHER_INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Other Intangible Assets (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]
Net Carrying Value	$22,928
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	31,162	31,162
Accumulated Amortization	8,748	7,237
Net Carrying Value	22,414	23,925
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	670	670
Accumulated Amortization	156	123
Net Carrying Value	514	547
Trade name intangibles
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$780	$780

GOODWILL_AND_OTHER_INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Estimated Future Amortization Expense (Detail) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2015	$4,292
2016	4,946
2017	4,066
2018	3,205
2019 and after	6,419
Net Carrying Value	$22,928

FEDERAL_HOME_LOAN_BANK_ADVANCE1

FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS - Additional Information (Detail) (USD $)	0 Months Ended
	Mar. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Banking and Thrift [Abstract]
Fixed bank advances		$400,000,000	$400,000,000
Interest rate of Company's advances, minimum		0.28%	0.19%
Interest rate of Company's advances, maximum		0.34%	0.82%
Weighted average rate of Company's advances		0.31%	0.31%
Variable bank advances		145,000,000	233,000,000
FHLB variable-rate, weighted average interest rate		0.24%	0.27%
Advances from FHLB collateralized		1,890,000,000	1,840,000,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Amount of additional available borrowing		943,000,000
Line of Credit Facility [Line Items]
Potential borrowings under repurchase agreement		319,600,000
Other borrowings		15,000,000	0
Federal Reserve Bank Advances
Line of Credit Facility [Line Items]
Line of credit facility		111,100,000
Collateral on line of credit facility		149,000,000
Other borrowings		0
Unsecured Federal Funds Line of Credit | Line of Credit
Line of Credit Facility [Line Items]
Line of credit facility		85,000,000
Line of Credit Facility Maturing March 28, 2016 | Line of Credit
Line of Credit Facility [Line Items]
Line of credit facility	20,000,000
Other borrowings		15,000,000
London Interbank Offered Rate (LIBOR) | Line of Credit Facility Maturing March 28, 2016 | Line of Credit
Line of Credit Facility [Line Items]
Basis spread on variable rate	225.00%
Federal Home Loan Bank of San Francisco
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB stock		$27,400,000	$29,800,000

LONG_TERM_DEBT_Additional_Info

LONG TERM DEBT - Additional Information (Detail) (USD $)	3 Months Ended	0 Months Ended
	Mar. 31, 2015	Dec. 07, 2012	Apr. 23, 2012	21-May-14	Dec. 06, 2012
Senior Notes
Debt Instrument [Line Items]
Minimum redemption period notice required	30 days
Maximum redemption period notice required	60 days
Redemption price, percentage	100.00%
Senior Notes | 7.50% Senior Notes Due April 15, 2020
Debt Instrument [Line Items]
Aggregate principal amount issued			$33,000,000		$45,000,000
Stated interest rate	7.50%		7.50%
Sale price of notes to public			25		25
Net proceeds from issuance of debt after discounts		50,100,000	31,700,000
Exercise of underwriters' overallotment option		6,800,000
Junior Subordinated Debt | 7.50% Amortizing Note Due May 15, 2017
Debt Instrument [Line Items]
Stated interest rate				7.50%
Gross proceeds from issuance of tangible equity units				69,000,000
Tangible equity units dividend rate				8.00%
Tangible equity units issued during period, shares				1,380,000
Tangible equity units issued to underwriter during period, shares				180,000
Tangible equity units, price per share				$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
Proceeds from issuance of tangible equity units, net of issuance costs				$65,000,000

INCOME_TAXES_Additional_Inform

INCOME TAXES - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$9,524,000	$191,000
Effective tax rate	43.10%	20.30%
Net deferred tax asset	14,157,000		16,373,000
Unrecognized tax benefits	5,700,000		5,400,000
Decrease in unrecognized tax benefits is reasonably possible	5,300,000
Tax benefit that, if recognized, would impact effective tax rate	340,000
Accrued interest or penalties	$30,000		$23,000

MORTGAGE_BANKING_ACTIVITIES_Ad

MORTGAGE BANKING ACTIVITIES - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Originations of loans held for sale from mortgage banking	$1,007,720,000	$511,451,000
Proceeds from sale of mortgage loans held-for-sale	927,700,000	531,800,000
Net gain on sale of mortgage loans held for sale	34,400,000	15,200,000
Margin on sale of mortgage loans held for sale	3.41%	2.96%
Loan origination fees	3,500,000	2,200,000
Loans sold	9,800,000	4,800,000
Provision for loss reimbursement on sold loans	845,000	571,000
Representations and Warranties Obligations and Corporate Guarantees
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Provision for loss reimbursement on sold loans	1,300,000	571,000
Initial provision for loan repurchases	$483,000

MORTGAGE_BANKING_ACTIVITIES_Su

MORTGAGE BANKING ACTIVITIES - Summary of Activities in Reserve for Loss Reimbursements on Sold Loans (Detail) (Representations and Warranties Obligations and Corporate Guarantees, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Representations and Warranties Obligations and Corporate Guarantees
Loss Contingency Accrual [Roll Forward]
Balance at beginning of period	$8,303	$5,427
Provision for loan repurchases	1,328	571
Payments made for loss reimbursement on sold loans	-1,199	-132
Balance at end of period	$8,432	$5,866

RISK_MANAGEMENT_AND_DERIVATIVE2

RISK MANAGEMENT AND DERIVATIVE INSTRUMENTS - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Derivative [Line Items]
Derivatives gain (loss)	($2,700,000)	($3,600,000)
Loan Origination Commitments
Derivative [Line Items]
Committed fund loans for borrowers	439,900,000
Other Assets
Derivative [Line Items]
Derivatives asset, fair values	13,555,000		6,379,000
Accrued Expenses and Other Liabilities
Derivative [Line Items]
Derivatives liability, fair values	-4,552,000		-3,235,000
Bank forward commitments outstanding	656,978,000		424,904,000
California | Geographic Concentration Risk | Properties Securing Loans Held for Sale
Derivative [Line Items]
Concentration risk percentage	78.80%
Interest Rate Swap Maturing on September 27, 2018 | Cash Flow Hedging
Derivative [Line Items]
Derivatives, notional amount		50,000,000
Interest Rate Swap Maturing on January 30, 2022 | Cash Flow Hedging
Derivative [Line Items]
Derivatives, notional amount		25,000,000
Interest rate swap | Accrued Expenses and Other Liabilities
Derivative [Line Items]
Derivatives liability, fair values	-415,000		-235,000
Bank forward commitments outstanding	75,000,000		50,000,000
Interest Rate Lock Commitment and Forward Contracts | Not Designated as Hedging Instrument | Other Assets
Derivative [Line Items]
Derivatives asset, fair values	13,600,000
Interest Rate Lock Commitment and Forward Contracts | Not Designated as Hedging Instrument | Accrued Expenses and Other Liabilities
Derivative [Line Items]
Derivatives liability, fair values	-4,100,000
Mandatory forward commitments | Other Assets
Derivative [Line Items]
Derivatives asset, fair values	0		629,000
Mandatory forward commitments | Accrued Expenses and Other Liabilities
Derivative [Line Items]
Derivatives liability, fair values	-4,039,000		-2,803,000
Bank forward commitments outstanding	572,000,000		364,829,000
Mandatory forward commitments | Not Designated as Hedging Instrument
Derivative [Line Items]
Bank forward commitments outstanding	$572,000,000

RISK_MANAGEMENT_AND_DERIVATIVE3

RISK MANAGEMENT AND DERIVATIVE INSTRUMENTS - Amount and Market Value of Mortgage Banking Derivatives (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Other Assets
Derivatives, Fair Value [Line Items]
Notional Amount Assets	$429,917	$205,658
Derivatives asset, fair values	13,555	6,379
Other Assets | Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Notional Amount Assets	429,917	179,923
Derivatives asset, fair values	13,555	5,750
Other Assets | Mandatory forward commitments
Derivatives, Fair Value [Line Items]
Notional Amount Assets	0	25,735
Derivatives asset, fair values	0	629
Accrued Expenses and Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount Liability	656,978	424,904
Derivatives liability, fair values	4,552	3,235
Accrued Expenses and Other Liabilities | Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Notional Amount Liability	9,978	10,075
Derivatives liability, fair values	98	197
Accrued Expenses and Other Liabilities | Mandatory forward commitments
Derivatives, Fair Value [Line Items]
Notional Amount Liability	572,000	364,829
Derivatives liability, fair values	4,039	2,803
Accrued Expenses and Other Liabilities | Interest rate swap
Derivatives, Fair Value [Line Items]
Notional Amount Liability	75,000	50,000
Derivatives liability, fair values	$415	$235

STOCK_COMPENSATION_PLANS_Addit

STOCK COMPENSATION PLANS - Additional Information (Detail) (USD $)	3 Months Ended		0 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Aug. 21, 2012	Jul. 16, 2013	21-May-14
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$1,700	$923
Total income tax benefit/ (expense)	$694	$0
Minimum settlement rate					4.4456
Market value greater or equal to					$11.25
Maximum settlement rate					5.1124
Market value less than or equal to					$9.78
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period of vested portion of all SARs following the cessation of service	90 days
5/21/2014 | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum settlement rate					4.4456
Market value greater or equal to					$11.25
Maximum settlement rate					5.1124
Market value less than or equal to					$9.78
Stock option awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Award expiration period	7 years
Stock option awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Award expiration period	10 years
Restricted stock awards and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	80,670
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 expiration period			10 years
SARs granted			500,000
Base price per share			$12.12
Expiration period of vested portion of all SARs following the cessation of service			90 days
Initial SAR | 8/21/2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SARs granted	500,000
Base price 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%
Initial SAR | Tranche Two | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting award rights			33.33%
Initial SAR | Tranche Three | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting award rights			33.33%
Additional Stock Appreciation Rights I-V, VII | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period	10 years
Additional Stock Appreciation Rights I-V, VII | 5/21/2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SARs granted	252,023
Base price per share	$10.09
Additional Stock Appreciation Rights I-V, VII | Tranche One | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting award rights	33.33%
Additional Stock Appreciation Rights I-V, VII | Tranche Two | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting award rights	33.33%
Additional Stock Appreciation Rights I-V, VII | Tranche Three | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting award rights	33.33%
Additional SAR VI | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage vested on settlement date	100.00%
Additional SAR VI | 5/21/2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SARs granted	280,110
Base price per share	$10.09
Additional SAR VI | Tranche One | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting award rights	66.67%
Additional SAR VI | Tranche Two | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting award rights	33.33%
2013 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares authorized percentage under the plan				20.00%
Minimum requirement of number of shares authorized				2,384,711
Common stock available under new plan	2,988,604

STOCK_COMPENSATION_PLANS_Unrec

STOCK COMPENSATION PLANS - Unrecognized Share Based Compensation Expense (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Expense	$10,544
Average Expected Recognition Period	3 years 6 months 17 days
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Expense	998
Average Expected Recognition Period	2 years 11 months 9 days
Restricted stock awards and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Expense	$9,546
Average Expected Recognition Period	3 years 7 months 10 days

STOCK_COMPENSATION_PLANS_Optio

STOCK COMPENSATION PLANS - Option Activity (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Number of Shares
Outstanding at beginning of period	879,070
Granted	0
Exercised	0
Forfeited	-50,540
Outstanding at end of period	828,530	879,070
Exercisable at end of period	496,016
Weighted- Average Exercise Price per Share
Outstanding at beginning of period	$12.67
Granted	$0
Exercised	$0
Forfeited	$11.90
Outstanding at end of period	$12.72	$12.67
Exercisable at end of period	$11.85
Weighted- Average Remaining Contract Term
Outstanding	7 years 4 months 25 days	7 years 3 months 18 days
Granted	0 years
Exercised	0 years
Forfeited	5 years 7 months 14 days
Exercisable at end of period	7 years 10 months 22 days
Aggregated Intrinsic Value (In thousands)
Outstanding at beginning of period	$229	$32
Granted	0
Outstanding at end of period	229	32
Exercisable at end of period	$229

STOCK_COMPENSATION_PLANS_Nonve

STOCK COMPENSATION PLANS - Nonvested Stock Option Activity (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015
Number of Shares
Non-vested outstanding at beginning of period	552,672
Granted	0
Vested	0
Forfeited	0
Non-vested outstanding at end of period	552,672
Weighted- Average Exercise Price per Share
Non-vested outstanding at beginning of period	$12.74
Granted	$0
Vested	$0
Forfeited	$0
Non-vested outstanding at end of period	$12.74

STOCK_COMPENSATION_PLANS_Nonve1

STOCK COMPENSATION PLANS - Nonvested Restricted Stock Awards and Restricted Stock Units (Detail) (Restricted stock awards and restricted stock units, USD $)	3 Months Ended
	Mar. 31, 2015
Restricted stock awards and restricted stock units
Number of Shares
Outstanding at beginning of period	1,287,302
Granted	80,670
Vested	-22,419
Forfeited	-28,669
Outstanding at end of period	1,316,884
Weighted- Average Price per Share
Outstanding at beginning of period	$12.53
Granted	$10.93
Vested	$11.06
Forfeited	$12.22
Outstanding at end of period	$12.46

STOCK_COMPENSATION_PLANS_Summa

STOCK COMPENSATION PLANS - Summary of all Outstanding SARs (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015
Initial SAR | 8/21/2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	500,000
Base price per share	$12.12
Granted	$2.77
Additional Stock Appreciation Rights I-V, VII | 6/21/2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	150,933
Base price per share	$13.06
Granted	$2.38
Additional Stock Appreciation Rights I-V, VII | 7/1/2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	88,366
Base price per share	$13.60
Granted	$2.17
Additional Stock Appreciation Rights I-V, VII | 7/2/2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	15,275
Base price per share	$13.55
Granted	$2.19
Additional Stock Appreciation Rights I-V, VII | 12/10/2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	70,877
Base price per share	$12.83
Granted	$2.47
Additional Stock Appreciation Rights I-V, VII | 5/21/2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	252,023
Base price per share	$10.09
Granted	$1.65
Additional Stock Appreciation Rights I-V, VII | 11/07/2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	216,334
Base price per share	$11.62
Granted	$1.84
Additional SAR VI | 5/21/2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	280,110
Base price per share	$10.09
Granted	$2.22

STOCK_COMPENSATION_PLANS_Summa1

STOCK COMPENSATION PLANS - Summary of all Outstanding SARs (Footnotes) (Detail) (Additional SAR VI)	3 Months Ended
	Mar. 31, 2015
Additional SAR VI
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional SAR original shares of common stock a scheduled vesting	300,219
Additional SAR accelerated in vesting	143,849
TEU Additional SAR forfeited	20,109

STOCKHOLDERS_EQUITY_Warrants_D

STOCKHOLDERS' EQUITY - Warrants (Details) (USD $)	0 Months Ended	1 Months Ended
	Nov. 01, 2010	Nov. 30, 2010	Mar. 31, 2015
Class of Stock [Line Items]
Exercise price of warrants for non-voting common stock	$11		$9.22
Tcw Shared Opportunity Fund
Class of Stock [Line Items]
Warrants issued	240,000	240,000
Exercise price of warrants for non-voting common stock	$11
Warrant exercisable period	5 years	5 years
Cor Advisors Llc
Class of Stock [Line Items]
Warrants issued	1,395,000
Exercise price of warrants for non-voting common stock	$11
Cor Advisors Llc | President And Chief Executive Officer
Class of Stock [Line Items]
Warrants issued	960,000
Cor Advisors Llc | Vice President and Chief Lending Officer
Class of Stock [Line Items]
Warrants issued	435,000

STOCKHOLDERS_EQUITY_Common_Sto

STOCKHOLDERS' EQUITY - Common Stock (Details) (Common Stock, USD $)	0 Months Ended
In Millions, except Share data, unless otherwise specified	Nov. 07, 2014	21-May-14
Class of Stock [Line Items]
Issuance of stock shares		5,150,000
Underwriters option period		30 days
Net proceeds from issuance of common stock	$49.90	$50.40
Over Allotment Option
Class of Stock [Line Items]
Issuance of stock shares		772,500
Underwriters option period		30 days
Net proceeds from issuance of common stock		$7.60
OCM BOCA Investor, LLC (Oaktree)
Class of Stock [Line Items]
Issuance of stock shares	3,288,947
Patriot Financial Partners, L.P.
Class of Stock [Line Items]
Issuance of stock shares	1,900,000

STOCKHOLDERS_EQUITY_Perpetual_

STOCKHOLDERS' EQUITY - Perpetual Preferred Stock (Details) (Subsequent Event, Series D Preferred Stock)	0 Months Ended
	Apr. 08, 2015
Subsequent Event | Series D Preferred Stock
Class of Stock [Line Items]
Depository shares to preferred stock ratio	2.50%

STOCKHOLDERS_EQUITY_Tangible_E

STOCKHOLDERS' EQUITY - Tangible Equity Units (Details) (USD $)	3 Months Ended	0 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	21-May-14
Class of Stock [Line Items]
Minimum settlement rate		4.4456
Market value greater or equal to		$11.25
Maximum settlement rate		5.1124
Market value less than or equal to		$9.78
Tangible equity units settled	708,692
Issuance of shares of voting common stock	3,150,561
Tangible equity units outstanding	671,308
Junior Subordinated Debt | 7.50% Amortizing Note Due May 15, 2017
Class of Stock [Line Items]
Tangible equity units issued during period, shares		1,380,000
Tangible equity units issued to underwriter during period, shares		180,000
Proceeds from issuance of tangible equity units, net of issuance costs		$65
Tangible equity units, convertible, conversion ratio		10.604556
Stated interest rate		7.50%
Equal quarterly cash installments per Amortizing Note		1
Installment payment due on August 15, 2014 per Amortizing Note		0.933333
Tangible equity units dividend rate		8.00%
Tangible equity units, price per share		$50
Junior Subordinated Debt | 7.50% Amortizing Note Due May 15, 2017 | Notes Payable
Class of Stock [Line Items]
Long-term debt	10.9

STOCKHOLDERS_EQUITY_Changes_to

STOCKHOLDERS' EQUITY - Changes to Accumulate Other Comprehensive Income by Components (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$373	($600)
Unrealized gain(loss) arising during the period	3,150	806
Reclassification adjustment from other comprehensive income	2	-507
Tax effect of current period changes	-1,327	0
Total changes, net of taxes	1,825	299
Balance at end of period	2,198	-301
Available for Sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	509	-826
Unrealized gain(loss) arising during the period	3,330	1,023
Reclassification adjustment from other comprehensive income	2	-507
Tax effect of current period changes	-1,403	0
Total changes, net of taxes	1,929	516
Balance at end of period	2,438	-310
Cash Flow Hedge
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	-136	226
Unrealized gain(loss) arising during the period	-180	-217
Reclassification adjustment from other comprehensive income	0	0
Tax effect of current period changes	76	0
Total changes, net of taxes	-104	-217
Balance at end of period	($240)	$9

Regulatory_Capital_Matters_Det

Regulatory Capital Matters (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Common equity tier 1 capital ratio
Amount	$391,714
Ratio	9.01%
Minimum Capital Requirement	195,659
Ratio	4.50%
Parent Company [Member]
Total risk-based capital ratio
Amount	502,054	473,656
Ratio	11.55%	11.28%
Minimum Capital Requirement	347,838	335,829
Ratio	8.00%	8.00%
Tier 1 risk-based capital ratio
Amount	470,808	442,307
Ratio	10.83%	10.54%
Minimum Capital Requirement	260,879	167,914
Ratio	6.00%	4.00%
Tier 1 leverage ratio
Amount	470,808	442,307
Ratio	7.99%	8.57%
Minimum Capital Requirement	235,611	206,502
Ratio	4.00%	4.00%
Banc Of California National Association [Member]
Total risk-based capital ratio
Amount	589,547	503,727
Ratio	13.58%	12.04%
Minimum Capital Requirement	347,348	334,834
Ratio	8.00%	8.00%
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions	434,185	418,543
Ratio	10.00%	10.00%
Tier 1 risk-based capital ratio
Amount	558,301	472,378
Ratio	12.86%	11.29%
Minimum Capital Requirement	260,511	167,417
Ratio	6.00%	4.00%
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions	347,348	251,126
Ratio	8.00%	6.00%
Common equity tier 1 capital ratio
Amount	558,301
Ratio	12.86%
Minimum Capital Requirement	195,383
Ratio	4.50%
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions	282,220
Ratio	6.50%
Tier 1 leverage ratio
Amount	558,301	472,378
Ratio	9.49%	9.17%
Minimum Capital Requirement	235,344	206,095
Ratio	4.00%	4.00%
Minimum Required to Be Well Capitalized Under Prompt Corrective Action Provisions	$294,180	$257,619
Ratio	5.00%	5.00%

EARNINGS_PER_COMMON_SHARE_Comp

EARNINGS PER COMMON SHARE - Computations for Basic and Diluted Earnings/(Loss) (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Basic:
Net income	$12,574	$749
Less: income allocated to participating securities	-272	0
Less: participating securities dividends	-173	0
Less: preferred stock dividends	-910	-910
Net income (loss) allocated to common stockholders	11,219	-161
Weighted average common shares outstanding (in shares)	37,873,253	20,199,025
Basic earnings per common share (in usd per share)	$0.30	($0.01)
Diluted:
Net income allocated to common shareholders	11,219	-161
Additional income allocation for class B dilutive shares	0	0
Adjusted net income (loss) allocated to common stockholders	11,219	-161
Add: Dilutive effects of purchase contracts	0	0
Add: Dilutive effects of warrants	283,911	0
Average shares and dilutive common shares (in shares)	38,304,666	20,199,025
Diluted earnings per common share (in usd per share)	$0.29	($0.01)
Class A Common Stock
Basic:
Net income	12,560	727
Less: income allocated to participating securities	-272	0
Less: participating securities dividends	-173	0
Less: preferred stock dividends	-909	-883
Net income (loss) allocated to common stockholders	11,206	-156
Weighted average common shares outstanding (in shares)	37,831,035	19,609,017
Basic earnings per common share (in usd per share)	$0.30	($0.01)
Diluted:
Net income allocated to common shareholders	11,206	-156
Additional income allocation for class B dilutive shares	-85	0
Adjusted net income (loss) allocated to common stockholders	11,121	-156
Add: Dilutive effects of purchase contracts	0	0
Add: Dilutive effects of warrants	0	0
Average shares and dilutive common shares (in shares)	37,978,537	19,609,017
Diluted earnings per common share (in usd per share)	$0.29	($0.01)
Class B Common Stock
Basic:
Net income	14	22
Less: income allocated to participating securities	0	0
Less: participating securities dividends	0	0
Less: preferred stock dividends	-1	-27
Net income (loss) allocated to common stockholders	13	-5
Weighted average common shares outstanding (in shares)	42,218	590,008
Basic earnings per common share (in usd per share)	$0.30	($0.01)
Diluted:
Net income allocated to common shareholders	13	-5
Additional income allocation for class B dilutive shares	85	0
Adjusted net income (loss) allocated to common stockholders	$98	($5)
Add: Dilutive effects of purchase contracts	0	0
Add: Dilutive effects of warrants	283,911	0
Average shares and dilutive common shares (in shares)	326,129	590,008
Diluted earnings per common share (in usd per share)	$0.30	($0.01)
Restricted Stock Units (RSUs)
Diluted:
Add: Dilutive effects of restricted stock units and stock options	146,876	0
Restricted Stock Units (RSUs) | Class A Common Stock
Diluted:
Add: Dilutive effects of restricted stock units and stock options	146,876	0
Restricted Stock Units (RSUs) | Class B Common Stock
Diluted:
Add: Dilutive effects of restricted stock units and stock options	0	0
Stock Option
Diluted:
Add: Dilutive effects of restricted stock units and stock options	626	0
Stock Option | Class A Common Stock
Diluted:
Add: Dilutive effects of restricted stock units and stock options	626	0
Stock Option | Class B Common Stock
Diluted:
Add: Dilutive effects of restricted stock units and stock options	0	0

EARNINGS_PER_COMMON_SHARE_Addi

EARNINGS PER COMMON SHARE - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock excluded from computation of earnings per share	797,514	1,493,505
Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock excluded from computation of earnings per share		1,635,000

OFFBALANCE_SHEET_COMMITMENTS_C

OFF-BALANCE SHEET COMMITMENTS - Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Commitments to extend credit
Other Commitments [Line Items]
Fixed Rate	$126,760	$87,517
Variable Rate	94,011	82,818
Unused lines of credit
Other Commitments [Line Items]
Fixed Rate	35,865	20,631
Variable Rate	310,839	295,626
Letters of credit
Other Commitments [Line Items]
Fixed Rate	810	825
Variable Rate	$11,140	$10,411

OFFBALANCE_SHEET_COMMITMENTS_A

OFF-BALANCE SHEET COMMITMENTS - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015
Other Commitments [Line Items]
Commitments to make loans period, maximum	30 days
Commitments to sell loans under residential mortgage division	$612.10
Jumbo mortgage loan commitments
Other Commitments [Line Items]
Commitments to sell loans under residential mortgage division	8.9
TBAs commitments
Other Commitments [Line Items]
Commitments to sell loans under residential mortgage division	572
Best efforts commitments
Other Commitments [Line Items]
Commitments to sell loans under residential mortgage division	31.3
Other Commitments
Other Commitments [Line Items]
Commitments to sell loans under residential mortgage division	0
Interest rate lock commitments
Other Commitments [Line Items]
Commitments to sell loans under residential mortgage division	$439.90

Operating_Segments_Financial_R

- Operating Segments' Financial Results (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	segment
Segment Reporting [Abstract]
Number of operating segments	4
Segment Reporting Information [Line Items]
Net interest income	$51,997	$35,185
Provision for loan and lease losses	0	1,929
Noninterest income	45,980	25,278
Noninterest expense	75,879	57,594
Income before income taxes	22,098	940
Total assets	6,097,355	4,030,465	5,971,297
Operating Segments | Banking
Segment Reporting Information [Line Items]
Net interest income	51,552	34,900
Provision for loan and lease losses	0	1,929
Noninterest income	7,855	5,796
Noninterest expense	43,492	31,681
Income before income taxes	15,915	7,086
Total assets	5,684,574	3,816,728
Operating Segments | Mortgage Banking
Segment Reporting Information [Line Items]
Net interest income	2,501	1,869
Provision for loan and lease losses	0	0
Noninterest income	36,928	18,369
Noninterest expense	29,797	22,849
Income before income taxes	9,632	-2,611
Total assets	406,215	202,555
Operating Segments | Financial Advisory and Asset Management
Segment Reporting Information [Line Items]
Net interest income	0	0
Provision for loan and lease losses	0	0
Noninterest income	2,622	2,993
Noninterest expense	1,980	2,246
Income before income taxes	642	747
Total assets	2,987	3,943
Operating Segments | Corporate/ Other
Segment Reporting Information [Line Items]
Net interest income	-2,056	-1,584
Provision for loan and lease losses	0	0
Noninterest income	0	3
Noninterest expense	2,035	2,701
Income before income taxes	-4,091	-4,282
Total assets	25,424	19,257
Inter-segment Elimination
Segment Reporting Information [Line Items]
Net interest income	0	0
Provision for loan and lease losses	0	0
Noninterest income	-1,425	-1,883
Noninterest expense	-1,425	-1,883
Income before income taxes	0	0
Total assets	($21,845)	($12,018)

RELATEDPARTY_TRANSACTIONS_Rela

RELATED-PARTY TRANSACTIONS - Related Party Transactions (Details) (Officers and Directors, USD $)	Mar. 31, 2015	Dec. 31, 2014
Officers and Directors
Related Party Transaction [Line Items]
Loans to certain officers and directors and their related interests	$220,000	$200,000
Deposits from principal officers, directors, and their related interests	$3,500,000	$4,500,000

RELATEDPARTY_TRANSACTIONS_Tran

RELATED-PARTY TRANSACTIONS - Transactions Involving Steven A. Sugarman (Details) (USD $)	1 Months Ended		2 Months Ended	3 Months Ended	6 Months Ended	0 Months Ended	3 Months Ended	12 Months Ended		0 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Nov. 30, 2013	Dec. 31, 2013	Jun. 27, 2014	Jul. 01, 2013	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 24, 2014	Feb. 14, 2012
COR Securities Holding, Inc. (CORSHI) | Rent Payments Reimbursement
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$12,000	$6,000	$11,000	$40,000
COR Securities Holding, Inc. (CORSHI) | Security Deposit
Related Party Transaction [Line Items]
Expenses from transactions with related parties				34,000
COR Securities Holding, Inc. (CORSHI) | Intercompany Transaction
Related Party Transaction [Line Items]
Expenses from transactions with related parties					34,000
COR Securities Holding, Inc. (CORSHI) | Leasing Costs Payments
Related Party Transaction [Line Items]
Expenses from transactions with related parties					58,000
Immediate Family Member of Chief Executive Officer, Brother | Consulting Agreement | Subsidiaries
Related Party Transaction [Line Items]
Expenses from transactions with related parties							30,000	1,200,000	121,000
Consulting agreement term						5 years
Consulting agreement payment						600,000
Consulting agreement minimum payment						30,000
Prior notice period						30 days
Limited Liability Company
Related Party Transaction [Line Items]
Common stock, shares outstanding											700,538
Percentage of total shares outstanding											2.00%
Percent ownership in limited partnership										9.90%
Minimum | Limited Liability Company
Related Party Transaction [Line Items]
Expected investment in limited partnership										5,000,000
Maximum | Limited Liability Company
Related Party Transaction [Line Items]
Expected investment in limited partnership										7,500,000

RELATEDPARTY_TRANSACTIONS_Tran1

RELATED-PARTY TRANSACTIONS - Transactions Involving Jeffrey T. Seabold (Details) (USD $)	0 Months Ended		12 Months Ended	0 Months Ended
	13-May-13	Dec. 27, 2012	Dec. 31, 2013	Oct. 31, 2013
Managing Director and Chief Lending Officer | Management and Services Agreement
Related Party Transaction [Line Items]
Monthly compensation for services		$100,000
Employment agreement, term	3 years
Expenses from transactions with related parties			439,000
Business acquisition, purchase price	10,000,000
CS Financial
Related Party Transaction [Line Items]
Shares paid as merger consideration				173,791
Par value of stocks issued				$0.01
Cash paid for acquisition				1,500,000
Earn-out liabilities				$3,200,000
CS Financial | Managing Director and Chief Lending Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration				103,663
CS Financial | Brother of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration				16,140
CS Financial | Sister-in-Law of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration				16,140
Number of shares transferred from one related party to another related party				103,663
CS Financial | Father of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration				3,228
CS Financial | Certain Employees of Acquired Entity
Related Party Transaction [Line Items]
Shares paid as merger consideration				34,620
Performance Shares
Related Party Transaction [Line Items]
Number of shares				92,781
Performance Shares | CS Financial | Managing Director and Chief Lending Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration				28,545
Performance Shares | CS Financial | Brother of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration				1,082
Performance Shares | CS Financial | Sister-in-Law of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration				1,082
Performance Shares | CS Financial | Father of President and Chief Executive Officer
Related Party Transaction [Line Items]
Shares paid as merger consideration				216

RELATEDPARTY_TRANSACTIONS_Tran2

RELATED-PARTY TRANSACTIONS - Transaction Involving Halle Benett and Former Chairman Timothy R. Chrisman (Details) (USD $)	0 Months Ended
	15-May-14	21-May-14	Apr. 08, 2015	Apr. 06, 2015
Former Chairman | Former Management Member
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$200,000
Strategic advisor agreement period	1 year
Common Stock
Related Party Transaction [Line Items]
Issuance of stock shares		5,150,000
Underwriters option period		30 days
Common Stock | Director | Underwriting Fees
Related Party Transaction [Line Items]
Expenses from transactions with related parties		521,000
Expenses from transactions with related parties, net of related expenses		481,000
Common Stock | Underwritten Public Offering
Related Party Transaction [Line Items]
Issuance of stock shares		5,150,000
Common Stock | Over Allotment Option
Related Party Transaction [Line Items]
Issuance of stock shares		772,500
Underwriters option period		30 days
Subsequent Event
Related Party Transaction [Line Items]
Underwriters option period			30 days
Subsequent Event | Director | Underwriting Fees
Related Party Transaction [Line Items]
Expenses from transactions with related parties			592,000	263,000
Subsequent Event | Underwritten Public Offering
Related Party Transaction [Line Items]
Depository shares issued			4,000,000
Price per share of depository shares (in usd per share)			25
Subsequent Event | Over Allotment Option
Related Party Transaction [Line Items]
Depository shares issued			600,000
Subsequent Event | Five Point Two Five Percent Senior Notes Due April 15, 2025 | Senior Notes
Related Party Transaction [Line Items]
Aggregate principal amount issued				175,000,000
Stated interest rate				5.25%
Series D Preferred Stock | Subsequent Event
Related Party Transaction [Line Items]
Depository shares to preferred stock ratio			2.50%
Series D Preferred Stock | Subsequent Event | Underwritten Public Offering
Related Party Transaction [Line Items]
Depository shares to preferred stock ratio			2.50%
Non cumulative preferred stock, dividend rate			7.38%
Liquidation preference value			1,000

RELATEDPARTY_TRANSACTIONS_Tran3

RELATED-PARTY TRANSACTIONS - Transaction with TWC Shared Opportunity Fund V, L.P., a Greater than 5 percent Shareholder (Details) (Tcw Shared Opportunity Fund)	0 Months Ended	1 Months Ended	0 Months Ended
	Nov. 01, 2010	Nov. 30, 2010	Mar. 16, 2015	Jan. 20, 2015	Jan. 05, 2015	Jun. 03, 2013	Dec. 10, 2014	Mar. 31, 2015	29-May-13
Related Party Transaction [Line Items]
Warrant exercisable period	5 years	5 years
Warrants issued	240,000	240,000
Conversion ratio							1
Voting Common Stock
Related Party Transaction [Line Items]
Maximum ownership percentage by noncontrolling owners to not be considered a bank holding company		4.99%
Maximum ownership percentage									9.99%
Shares exchanged			934	86,620	522,564	550,000
Stock outstanding								1,688,580
Nonvoting Common Stock
Related Party Transaction [Line Items]
Warrants issued								240,000
Stock outstanding								0

RELATEDPARTY_TRANSACTIONS_Secu

RELATED-PARTY TRANSACTIONS - Securities Purchase Agreement with Patriot Financial Partners, L.P. and Patriot Financial Partners Parallel, L.P. (Details) (USD $)	0 Months Ended
	Oct. 30, 2014	Nov. 10, 2014	Nov. 08, 2014	Apr. 22, 2014
			Branch	Branch
Greater Than 5% Shareholder, Patriot [Member]
Related Party Transaction [Line Items]
Aggregate purchase price	$20,040,480
Equity support payment	538,000
Greater Than 5% Shareholder, Patriot [Member] | Securities Purchase Agreement, Reimbursement of Out-of-Pocket Expenses
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$100,000
Voting Common Stock | Greater Than 5% Shareholder, Patriot [Member]
Related Party Transaction [Line Items]
Common stock, shares outstanding		3,100,564
Voting Common Stock | Greater Than 5% Shareholder, Patriot [Member] | Voting Common Stock Option One
Related Party Transaction [Line Items]
Common stock issuable	1,076,000
Price per share issuable	$9.78
Voting Common Stock | Greater Than 5% Shareholder, Patriot [Member] | Voting Common Stock Option Two
Related Party Transaction [Line Items]
Common stock issuable	824,000
Price per share issuable	$11.55
Banco Popular Branches
Related Party Transaction [Line Items]
Number of branches			20
Banco Popular Branches | Greater Than 5% Shareholder, Patriot [Member]
Related Party Transaction [Line Items]
Number of branches				20

RELATEDPARTY_TRANSACTIONS_Agre

RELATED-PARTY TRANSACTIONS - Agreement with Oaktree Capital Management (Details) (USD $)	0 Months Ended		3 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Nov. 07, 2014	21-May-14	Mar. 31, 2015	Dec. 31, 2014
Greater Than 5% Shareholder, Oaktree
Related Party Transaction [Line Items]
Company ownership percentage	9.90%
Greater Than 5% Shareholder, Oaktree | Securities Purchase Agreement, Equity Support Payment
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$1,600
Common Stock
Related Party Transaction [Line Items]
Issuance of stock shares		5,150,000
Common Stock | Greater Than 5% Shareholder, Oaktree
Related Party Transaction [Line Items]
Common stock, shares outstanding			3,288,947
Issuance of stock shares	3,288,947
Price per share issuable	$9.78
The Palisades Group Llc | Greater Than 5% Shareholder, Oaktree
Related Party Transaction [Line Items]
Revenue from related parties			$984	$5,300

SUBSEQUENT_EVENTS_Subsequent_E

SUBSEQUENT EVENTS Subsequent Events (Details) (USD $)	0 Months Ended	3 Months Ended	0 Months Ended
	Apr. 08, 2015	Mar. 31, 2015	Apr. 06, 2015
Subsequent Event
Subsequent Event [Line Items]
Underwriters option period	30 days
Senior Notes
Subsequent Event [Line Items]
Minimum redemption period notice required		30 days
Maximum redemption period notice required		60 days
Redemption price, percentage		100.00%
Senior Notes | Five Point Two Five Percent Senior Notes Due April 15, 2025 | Subsequent Event
Subsequent Event [Line Items]
Aggregate principal amount issued			$175,000,000
Stated interest rate			5.25%
Proceeds from issuance of debt			172,800,000
Minimum redemption period notice required			30 days
Maximum redemption period notice required			60 days
Redemption price, percentage			10000.00%
Underwritten Public Offering | Subsequent Event
Subsequent Event [Line Items]
Depository shares issued	4,000,000
Price per share of depository shares (in usd per share)	25
Proceeds from issuance of depository shares	96,900,000
Over Allotment Option | Subsequent Event
Subsequent Event [Line Items]
Depository shares issued	600,000
Proceeds from issuance of depository shares	14,500,000
Series D Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Depository shares to preferred stock ratio	2.50%
Series D Preferred Stock | Underwritten Public Offering | Subsequent Event
Subsequent Event [Line Items]
Depository shares to preferred stock ratio	2.50%
Non cumulative preferred stock, dividend rate	7.38%
Liquidation preference value	1,000