Banc of California (BANC) 10-Q 9 Nov 23 2023 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2023	Nov. 06, 2023
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-35522
Entity Registrant Name	BANC OF CALIFORNIA, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	04-3639825
Entity Address, Address Line One	3 MacArthur Place
Entity Address, City or Town	Santa Ana
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92707
City Area Code	855
Local Phone Number	361-2262
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	BANC
Security Exchange Name	NYSE
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001169770
Current Fiscal Year End Date	--12-31
Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		56,966,910
Class B Non-Voting Non-Convertible Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		477,321

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 45,898	$ 47,434
Interest-earning deposits in financial institutions	265,087	181,462
Total cash and cash equivalents	310,985	228,896
Securities held-to-maturity, at amortized cost (fair value of $250,285 and $262,460 at September 30, 2023 and December 31, 2022)	328,287	328,641
Securities available-for-sale, at fair value (amortized cost of $968,009 and $909,563 at September 30, 2023 and December 31, 2022; allowance for credit losses of $1,036 and $0 at September 30, 2023 and December 31, 2022)	915,054	868,297
Loans receivable	6,961,032	7,115,038
Allowance for loan losses	(74,390)	(85,960)
Loans receivable, net	6,886,642	7,029,078
Federal Home Loan Bank and other bank stock, at cost	60,336	57,092
Premises and equipment, net	109,141	107,345
Bank owned life insurance	129,939	127,122
Deferred income taxes, net	51,461	50,518
Goodwill	114,312	114,312
Other intangibles	6,142	7,526
Derivative assets	70,625	2,292
Other assets	264,148	275,897
Total assets	9,247,072	9,197,016
LIABILITIES AND STOCKHOLDERS’ EQUITY
Noninterest-bearing deposits	2,366,544	2,809,328
Interest-bearing deposits	4,274,086	4,311,593
Total deposits	6,640,630	7,120,921
Federal Home Loan Bank (FHLB) advances, net and Federal Reserve Bank (FRB) borrowings	1,008,293	727,348
Other borrowings	185,802	0
Long-term debt, net	274,279	274,906
Accrued expenses and other liabilities	136,348	114,223
Total liabilities	8,245,352	8,237,398
Commitments and contingent liabilities
Additional paid-in capital	869,565	866,478
Retained earnings	312,219	248,988
Treasury stock, at cost (8,383,337 and 6,623,846 shares at September 30, 2023 and December 31, 2022)	(137,269)	(115,907)
Accumulated other comprehensive loss, net	(43,453)	(40,597)
Total stockholders’ equity	1,001,720	959,618
Total liabilities and stockholders’ equity	9,247,072	9,197,016
Common Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Common stock	653	651
Class B Common Stock
LIABILITIES AND STOCKHOLDERS’ EQUITY
Common stock	$ 5	$ 5

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Securities held-to-maturity	$ 250,285	$ 262,460
Amortized cost	968,009	909,563
Allowance for credit loss	$ (1,036)	$ 0
Treasury stock (in shares)	8,383,337	6,623,846
Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	446,863,844	446,863,844
Common stock, shares issued (in shares)	65,342,478	65,168,380
Common stock, shares outstanding (in shares)	56,959,141	58,544,534
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	3,136,156	3,136,156
Common stock, shares issued (in shares)	477,321	477,321
Common stock, shares outstanding (in shares)	477,321	477,321

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Interest and dividend income
Loans, including fees	$ 95,613	$ 92,889	$ 83,699	$ 275,920	$ 238,828
Securities	16,335	15,804	10,189	47,048	25,622
Other interest-earning assets	4,274	7,458	2,085	16,324	4,210
Total interest and dividend income	116,222	116,151	95,973	339,292	268,660
Interest expense
Deposits	31,360	28,118	8,987	80,005	13,555
FHLB advances and FRB borrowings	7,773	14,703	3,558	32,124	9,625
Other interest-bearing liabilities	7,871	3,698	4,020	15,260	11,332
Total interest expense	47,004	46,519	16,565	127,389	34,512
Net interest income	69,218	69,632	79,408	211,903	234,148
Provision for (reversal of) credit losses	5,000	1,900	0	8,900	(31,542)
Net interest income after provision for (reversal of) credit losses	64,218	67,732	79,408	203,003	265,690
Noninterest income
Customer service fees	2,114	2,022	2,462	6,115	7,474
Loan servicing income	563	574	636	1,684	957
Income from bank owned life insurance	966	951	873	2,817	2,479
Change in fair value of derivative instruments	46,186	10	39	46,172	224
Net gain on sale of securities available-for-sale	0	0	0	0	16
All other income	949	2,467	1,671	7,873	7,627
Total noninterest income	50,778	6,024	5,681	64,661	18,777
Noninterest expense
Salaries and employee benefits	25,819	28,282	27,997	83,757	85,248
Occupancy and equipment	5,804	5,603	5,796	16,933	17,174
Professional fees	3,616	4,001	3,957	11,689	10,797
Data processing	1,657	1,686	1,699	4,906	5,309
Regulatory assessments	1,410	1,301	925	3,913	2,721
Software and technology	3,811	3,579	3,659	10,664	9,106
(Gain) loss on investments in alternative energy partnerships	(34)	(36)	504	1,548	1,705
Reversal of loan repurchase reserves	0	(808)	(26)	(819)	(987)
Amortization of other intangibles	461	462	396	1,384	1,150
Acquisition, integration and transaction costs	9,329	0	2,080	9,329	2,080
Other expense	4,291	5,062	3,975	13,231	11,867
Total noninterest expense	56,164	49,132	50,962	156,535	146,170
Income before income taxes	58,832	24,624	34,127	111,129	138,297
Income tax expense	16,258	6,745	9,931	30,398	38,877
Net income	42,574	17,879	24,196	80,731	99,420
Preferred stock dividends	0	0	0	0	1,420
Impact of preferred stock redemption	0	0	0	0	3,747
Net income available to common stockholders	$ 42,574	$ 17,879	24,196	$ 80,731	94,253
Common Stock
Noninterest expense
Preferred stock dividends			0		1,409
Impact of preferred stock redemption			$ 0		$ 3,718
Earnings per share:
Basic (in dollars per share)	$ 0.74	$ 0.31	$ 0.40	$ 1.39	$ 1.54
Diluted (in dollars per share)	0.74	0.31	$ 0.40	1.39	$ 1.53
Class B Common Stock
Noninterest expense
Preferred stock dividends			$ 0		$ 11
Impact of preferred stock redemption			$ 0		$ 29
Earnings per share:
Basic (in dollars per share)	0.74	0.31	$ 0.40	1.39	$ 1.54
Diluted (in dollars per share)	$ 0.74	$ 0.31	$ 0.40	$ 1.39	$ 1.54

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 42,574	$ 17,879	$ 24,196	$ 80,731	$ 99,420
Unrealized gain (loss) on available-for-sale securities:
Unrealized gain (loss) arising during the period	1,568	(5,215)	(13,715)	(7,573)	(55,741)
Reclassification adjustment for gain included in net income	0	0	0	0	(11)
Total change in unrealized gain (loss) on available-for-sale securities	1,568	(5,215)	(13,715)	(7,573)	(55,752)
Unrealized gain arising during the period	4,558	5,764	0	4,176	0
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity	179	182	195	541	430
Total other comprehensive income (loss)	6,305	731	(13,520)	(2,856)	(55,322)
Comprehensive income	$ 48,879	$ 18,610	$ 10,676	$ 77,875	$ 44,098

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock Voting	Common Stock Class B Non-Voting	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2021	$ 1,065,290	$ 94,956	$ 646	$ 5	$ 854,873	$ 147,894	$ (40,827)	$ 7,743
Comprehensive income:
Net income	99,420					99,420
Other comprehensive loss, net	(55,322)							(55,322)
Issuance of common stock	7,200		6		7,194
Redemption of preferred stock	(98,703)	(94,956)				(3,747)
Purchase of shares of treasury stock	(56,151)						(56,151)
Share-based compensation expense	4,482				4,482
Restricted stock surrendered due to employee tax liability	(1,743)				(1,743)
Shares purchased under the Dividend Reinvestment Plan	(80)				0	(80)
Dividends declared	(10,983)					(10,983)
Preferred stock dividends	(1,420)					(1,420)
Ending Balance at Sep. 30, 2022	951,990	0	652	5	864,806	231,084	(96,978)	(47,579)
Beginning Balance at Jun. 30, 2022	949,130		647	5	856,079	210,471	(84,013)	(34,059)
Comprehensive income:
Net income	24,196					24,196
Other comprehensive loss, net	(13,520)							(13,520)
Issuance of common stock	7,200		5		7,195
Purchase of shares of treasury stock	(12,965)						(12,965)
Share-based compensation expense	1,715				1,715
Restricted stock surrendered due to employee tax liability	(183)				(183)
Shares purchased under the Dividend Reinvestment Plan	(20)					(20)
Dividends declared	(3,563)					(3,563)
Ending Balance at Sep. 30, 2022	951,990	0	652	5	864,806	231,084	(96,978)	(47,579)
Beginning Balance at Dec. 31, 2022	959,618	0	651	5	866,478	248,988	(115,907)	(40,597)
Comprehensive income:
Net income	80,731					80,731
Other comprehensive loss, net	(2,856)							(2,856)
Issuance of common stock	0		3		(3)
Purchase of shares of treasury stock	(21,362)						(21,362)
Exercise of stock options	20				20
Share-based compensation expense	4,762				4,762
Restricted stock surrendered due to employee tax liability	(1,693)		(1)		(1,692)
Shares purchased under the Dividend Reinvestment Plan	(282)					(282)
Dividends declared	(17,218)					(17,218)
Ending Balance at Sep. 30, 2023	1,001,720	0	653	5	869,565	312,219	(137,269)	(43,453)
Beginning Balance at Jun. 30, 2023	957,054		653	5	867,994	275,430	(137,270)	(49,758)
Comprehensive income:
Net income	42,574					42,574
Other comprehensive loss, net	6,305							6,305
Excise tax on treasury stock repurchases	1						1
Exercise of stock options	20				20
Share-based compensation expense	1,581				1,581
Restricted stock surrendered due to employee tax liability	(30)		0		(30)
Shares purchased under the Dividend Reinvestment Plan	(93)					(93)
Dividends declared	(5,692)					(5,692)
Ending Balance at Sep. 30, 2023	$ 1,001,720	$ 0	$ 653	$ 5	$ 869,565	$ 312,219	$ (137,269)	$ (43,453)

CONSOLIDATED STATEMENTS OF ST_2

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Stockholders' Equity [Abstract]
Shares repurchased (in shares)	0	740,332	1,759,491	3,069,058
Dividends declared, per common share (in dollars per share)	$ 0.10	$ 0.06	$ 0.30	$ 0.18

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income	$ 80,731	$ 99,420
Adjustments to reconcile net income to net cash provided by operating activities
Provision for (reversal of) credit losses	8,900	(31,542)
Reversal of loan repurchase reserves	(819)	(987)
Depreciation on premises and equipment	11,386	11,883
Amortization of other intangibles	1,384	1,150
Amortization of debt issuance costs	1,354	1,322
Net amortization of premium on securities	166	834
Net (accretion) amortization of deferred loan costs (fees) and purchased premiums (discounts)	548	520
Deferred income tax expense	(2,075)	(1,547)
Bank owned life insurance income	(2,817)	(2,479)
Share-based compensation expense	4,762	4,482
Change in fair value of derivative instruments	(46,172)	(224)
Loss on investments in alternative energy partnerships and affordable housing investments	5,998	5,432
Net gain on sale of securities available-for-sale	0	(16)
Gain on sale-leaseback of branch	0	(771)
Repurchase of mortgage loans	(609)	(1,592)
Change in accrued interest receivable and other assets	6,223	29,662
Change in accrued interest payable and other liabilities	25,067	(5,040)
Net cash provided by operating activities	94,027	110,507
Cash flows from investing activities:
Proceeds from sales of securities available-for-sale	0	17,645
Proceeds from maturities and calls of securities available-for-sale	20,000	38,500
Purchases of securities available-for-sale	(101,740)	(27,500)
Proceeds from principal repayments of securities held-to-maturity and available-for-sale	24,244	32,119
Net cash used in acquisitions	0	(10,332)
Loan originations and principal collections, net	193,104	808,144
Purchases of loans	(61,430)	(814,302)
Redemption of FHLB stock	30,543	0
Purchases of FHLB and other bank stock	(33,787)	(9,796)
Purchase of derivative instruments	(15,739)	0
Purchase of mortgage servicing rights	0	(20,441)
Purchases of premises and equipment	(7,881)	(2,556)
Proceeds from sale-leaseback of branch	0	2,400
Funding of equity investments	(4,712)	(4,878)
Decrease in investments in alternative energy partnerships	1,059	1,782
Net cash provided by investing activities	43,661	10,785
Cash flows from financing activities:
Net decrease in deposits	(480,193)	(159,050)
Net increase in short-term FHLB advances and FRB borrowings	179,964	50,000
Proceeds from FHLB long-term advances and FRB borrowings	100,000	200,000
Net increase (decrease) in other borrowings	185,802	(15,000)
Redemption of preferred stock	0	(98,703)
Redemption of long term debt	(920)	0
Purchase of treasury stock	(21,362)	(56,151)
Proceeds from exercise of stock options	20	0
Purchase of stock surrendered to pay tax liability	(1,692)	(1,743)
Dividends paid on preferred stock	0	(1,727)
Dividends paid on common stock	(17,218)	(10,983)
Net cash used in financing activities	(55,599)	(93,357)
Net change in cash and cash equivalents	82,089	27,935
Cash and cash equivalents at beginning of period	228,896	228,123
Cash and cash equivalents at end of period	310,985	256,058
Supplemental cash flow information
Interest paid on deposits and borrowed funds	111,852	28,904
Income taxes paid	323	14,792
Supplemental disclosure of non-cash activities
Transfer from loans to other real estate owned, net	882	0
Reclassification of securities available-for-sale to held-to-maturity	0	329,416
Operating lease right-of-use assets received in exchange for lease liabilities	1,633	1,253
Commitments to fund low income housing tax credit investments	0	12,000
Goodwill adjustments for purchase accounting	$ 0	$ 1,821

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations: Banc of California, Inc., a Maryland corporation, was incorporated in March 2002 and serves as the holding company for its wholly owned subsidiary, Banc of California, National Association (the “Bank”), a California-based bank. When we refer to the “parent” or the “holding company", we are referring to Banc of California, Inc., the parent company, on a stand-alone basis. When we refer to “we,” “us,” “our,” or the “Company”, we are referring to Banc of California, Inc. and its consolidated subsidiaries including the Bank, collectively. We are regulated as a bank holding company by the FRB and the Bank operates under a national bank charter issued by the Office of the Comptroller of the Currency (“OCC”), the Bank’s primary regulator. The Bank is a member of the Federal Home Loan Bank (“FHLB”) system, and maintains insurance on deposit accounts with the Federal Deposit Insurance Corporation (“FDIC”). The Bank offers a variety of financial services to meet the banking and financial needs of the communities it serves, with operations conducted through 32 offices including 26 full-service branches located throughout Southern California as of September 30, 2023. Update on Proposed Merger with PacWest: On July 25, 2023, the Company and PacWest announced the execution of an Agreement and Plan of Merger, pursuant to which (a) a newly formed merger subsidiary of the Company will merge with and into PacWest, with PacWest as the surviving entity (the “first-step merger”), (b) immediately following the first-step merger, PacWest will merge with and into the Company, with the Company surviving (the “second-step merger”), (c) promptly following the second-step merger, Pacific Western Bank, a California-chartered non-member bank and, as of immediately prior to the second-step merger, a wholly-owned subsidiary of PacWest (“PacWest Bank”), will become a member of the Federal Reserve System (the “FRS Membership”) and (d) promptly following the effectiveness of the FRS Membership, the Bank will merge with and into PacWest Bank, with PacWest Bank surviving as a wholly-owned subsidiary of the Company (the “bank merger” and together with the first-step merger and the second-step merger, the “merger”). Upon closing of the merger, the combined holding company and bank will operate under the Banc of California name and brand. At the closing of the merger, PacWest stockholders will be entitled to receive 0.6569 of a share of the Company’s common stock for each share held of PacWest common stock. In the second-step merger, each outstanding share of PacWest’s 7.75% series A fixed-rate reset noncumulative perpetual preferred stock will be converted into the right to receive one share of a newly created series of substantially identical preferred stock of the Company with the same terms and conditions. In connection with the proposed transaction, the Company also entered into separate investment agreements (the “Investment Agreements”) with affiliates of funds managed by Warburg Pincus LLC (the “Warburg Investors”) and certain investment vehicles sponsored, managed or advised by Centerbridge Partners, L.P. and its affiliates (the “Centerbridge Investors” and, together with the Warburg Investors, the “Investors”), which together will invest a total of $400 million for newly issued equity securities of the Company substantially concurrently with and subject to the closing of the transaction. Subject to the terms and conditions of the Investment Agreements, at the closing of the transactions contemplated thereby, the Company expects to issue to the Warburg Investors and the Centerbridge Investors, in the aggregate, approximately 21.8 million shares of common stock at a purchase price of $12.30 per share and 10.8 million shares of a new class of nonvoting, common-equivalent stock at a purchase price of $12.30 per share. Additionally, the Warburg Investors will receive warrants to purchase approximately 15.9 million of the Company’s nonvoting, common-equivalent shares, and the Centerbridge Investors will receive warrants to purchase approximately 3.0 million shares of the Company’s common stock, each with an exercise price of $15.375 per share. The warrants carry a term of seven years but are subject to mandatory exercise when the market price of the Company’s common stock reaches or exceeds $24.60 for twenty or more trading days during any thirty-consecutive trading day period. On October 19, 2023, the Board of Governors of the Federal Reserve System granted its approval of the merger. In addition, on October 5, 2023, the California Department of Financial Protection and Innovation granted its approval of the bank merger. No further regulatory approvals are required to complete the proposed transaction. Banc of California and PacWest will each hold a special meeting of its respective stockholders in connection with the transaction on November 22, 2023. The consummation of the proposed transaction is expected to close on or about November 30, 2023, subject to the satisfaction of the remaining closing conditions set forth in the merger agreement, including receipt of the requisite stockholder approval and the concurrent closing of the $400 million equity capital raise described above. (Refer to Note 19 - Subsequent Events for further discussion). Concurrently with entering into the definitive merger agreement, the Bank entered into an aggregate of $3.1 billion in interest rate swaptions to hedge interest rate risk for a total cost of $15.7 million, and a contingent forward loan sale agreement on $1.8 billion of the single family residential (“SFR”) loan portfolio. The contingent forward loan sale agreement is contingent upon receipt of approval to close the bank merger. Should the merger not close for any reason, we intend to continue to hold the SFR loan portfolio for investment. During the third quarter of 2023, we recorded a $46.2 million pre-tax mark-to-market gain on derivative instruments used to hedge the interest rate risk associated with various assets on our balance sheet in anticipation of the sale of such assets in connection with the proposed merger with PacWest. (Refer to Note 9 - Derivative Instruments for further discussion). Basis of Presentation: The accompanying unaudited interim consolidated financial statements have been prepared pursuant to Article 10 of SEC Regulation S-X and other SEC rules and regulations for reporting on the Quarterly Report on Form 10-Q. Accordingly, certain disclosures required by U.S. generally accepted accounting principles (“GAAP”) are not included herein. These interim statements should be read in conjunction with the consolidated financial statements and notes included in the Annual Report on Form 10-K for the year ended December 31, 2022 filed by us with the SEC. Certain prior period amounts have been reclassified to conform to current period presentation. These reclassifications are immaterial and have no effect on net income, comprehensive income (loss), total assets or total shareholders’ equity previously reported. In the opinion of management of the Company, the accompanying unaudited interim consolidated financial statements reflect all of the adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the consolidated financial condition and consolidated results of operations as of the dates and for the periods presented. The results of operations for the three and nine months ended September 30, 2023 are not necessarily indicative of the results that may be expected for the year ending December 31, 2023. Principles of Consolidation: The accompanying unaudited consolidated financial statements include the accounts of the Company and its consolidated subsidiaries as of September 30, 2023 and December 31, 2022 and for the three and nine months ended September 30, 2023 and September 30, 2022. Significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, all references to the Company include its then wholly-owned subsidiaries. Significant Accounting Policies: The accounting and reporting policies of the Company are based upon GAAP and conform to predominant practices within the banking industry. We have not made any changes in our significant accounting policies from those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC, except for those described below, which reflect an update to our accounting policy on derivative instruments and the impact of the adoption of ASU 2022-02: Derivative Instruments: We record our derivative instruments at fair value as either assets or liabilities on the consolidated statements of financial condition in derivative assets and accrued expenses and other liabilities, respectively, and have elected to present all derivatives with counterparties on a gross basis. For fair value derivatives that qualify for hedge accounting, we record changes in the fair value in noninterest income. For derivatives that do not qualify for hedge accounting, the fair value impact is recorded in noninterest income in the income statement. For derivatives designated as cash flow hedges, the gain or loss on the derivatives is recorded in other comprehensive income and subsequently reclassified into earnings in the same period during which the hedged transaction affects earnings. Derivative instruments utilized by the Company included the following: Interest Rate Swaps and Caps. We offer interest rate swap and cap products to certain loan clients to allow them to hedge the risk of rising interest rates on their variable rate loans. When such products are issued, we also enter into an offsetting swap with institutional counterparties to eliminate the interest rate risk. These back-to-back derivative agreements, which generate fee income for us, are intended to offset each other. We retain the credit risk of the original loan. The net cash flow for us is equal to the interest income received from a variable rate loan originated with the client plus a fee. These swaps and caps are not designated as accounting hedges and are recorded at fair value in derivative assets and accrued expenses and other liabilities in the consolidated statements of financial condition. The changes in fair value are recorded in noninterest income in the consolidated statements of operations. Foreign Exchange Contracts . We offer short-term foreign exchange contracts to our clients to purchase and/or sell foreign currencies at set rates in the future. These products allow clients to hedge the foreign exchange rate risk of their deposits and loans denominated in foreign currencies. In conjunction with these products, we also enter into offsetting contracts with institutional counterparties to hedge our foreign exchange rate risk. These back-to-back contracts allow us to offer our clients foreign exchange products while minimizing our exposure to foreign exchange rate fluctuations. These foreign exchange contracts are not designated as accounting hedges and are recorded at fair value in derivative assets and accrued expenses and other liabilities on the consolidated statements of financial condition. Interest Rate Swaptions and Contingent Forward Loan Sale Agreement. Concurrently with the announcement of the proposed merger with PacWest, we entered into an aggregate of $3.1 billion in interest rate swaptions to hedge the interest rate risk associated with various assets on our balance sheet in anticipation of the sale of such assets in connection with the proposed merger with PacWest and a contingent forward loan sale agreement on $1.8 billion of the SFR loan portfolio. The contingent forward loan sale agreement is contingent upon receipt of approval to close the bank merger. Should the merger not close for any reason, we intend to continue to hold the SFR loan portfolio for investment. These derivative instruments are not designated as accounting hedges and are recorded at fair value in derivative assets on the consolidated statements of financial condition. The fair values of these derivative instruments will rise and fall in response to changes in market interest rates and the change in fair value is recorded in noninterest income in the consolidated statements of operations. Cash Flow Hedge . The Company applies hedge accounting for qualifying derivative instruments used to manage interest rate risk. A cash flow hedge is a derivative instrument used to manage the variability in future expected cash flows that would otherwise be impacted by movements in interest rates. To quality for hedge accounting, the cash flow hedge must be highly effective at reducing the risk associated with the hedged exposure. The effectiveness of the hedging relationship is documented at inception and is monitored at least quarterly through the life of the transaction. A cash flow hedge that is designated as highly effective is carried at fair value with the change in fair value recorded in other comprehensive income (loss) (“AOCI”) and subsequently recognized in earnings in the same period that the hedged forecasted transaction affects earnings. At that time, the amount reclassified from AOCI is presented in the same income statement line item in which the hedged transaction is reported (interest income or expense). If the cash flow hedge becomes ineffective, the change in fair value is reclassified from AOCI to earnings. Cash flows from cash flow hedges are classified as operating activities in the statement of cash flows. We classify both the earnings and cash flow impact from these derivatives consistent with the underlying hedged item. Loan Modifications to Borrowers Experiencing Financial Difficulty: Prior to the adoption of ASU 2022-02, we accounted for the modification to the contractual terms of a loan that resulted in granting a concession to a borrower experiencing financial difficulties as a troubled debt restructuring (“TDR”). Effective January 1, 2023, we adopted ASU 2022-02, which eliminated TDR accounting prospectively for all restructurings occurring on or after January 1, 2023. Loans that were considered a TDR prior to the adoption of ASU 2022-02 will continue to be accounted for under the superseded TDR accounting guidance until the loan is paid off, liquidated, or subsequently modified. Since adoption of ASU 2022-02 on January 1, 2023, we have evaluated all loan modifications under ASC 310-20 to determine whether a modification made to a borrower results in a new loan or is a continuation of the existing loan. 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 consolidated financial statements and disclosures provided, and actual results could differ. The allowance for credit losses (“ACL”) (which includes the allowance for loan losses (“ALL”) and the reserve for unfunded noncancellable loan commitments (“RUC”)), loan repurchase reserve, realization of deferred tax assets, the fair value of assets and liabilities acquired in business combinations and related purchase price allocation, the valuation of goodwill and other intangible assets, other derivatives, hypothetical liquidation at book value (“HLBV”) of investments in alternative energy partnerships, and the fair value measurement of financial instruments are particularly subject to change and such change could have a material effect on the consolidated financial statements. Recently Adopted Accounting Guidance: In March 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2022-02, Financial Instruments—Credit Losses (Topic 326) Troubled Debt Restructurings and Vintage Disclosures , which addresses areas identified by the FASB as part of its post-implementation review of the credit losses standard (“ASU 2016-13”) that introduced the current expected credit losses (“CECL”) model. The amendments eliminate the accounting guidance for TDRs by creditors that have adopted the CECL model and enhances the disclosure requirements for loan refinancings and restructurings made with borrowers experiencing financial difficulty. In addition, the amendments require a public business entity to disclose current-period gross write-offs for financing receivables by year of origination in the vintage disclosures. ASU 2022-02 is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. We adopted ASU 2022-02 on January 1, 2023 and the impact of adoption did not have a material effect on our consolidated financial statements. Recently Issued Accounting Guidance Not Yet Adopted : In March 2023, the FASB issued ASU 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method (a consensus of the Emerging Issues Task Force) (“ASU 2023-02”) , which permits reporting entities to

FAIR VALUES OF FINANCIAL INSTRU

FAIR VALUES OF FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 2023
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 (“AFS”): The fair values of AFS securities are generally determined by quoted market prices in active markets, if available (Level 1). If quoted market prices are not available, we primarily employ independent pricing services that utilize pricing models to calculate fair value. Such fair value measurements consider observable data such as dealer quotes, market spreads, cash flows, yield curves, live trading levels, trade execution data, market consensus prepayment speeds, credit information, and respective terms and conditions for debt instruments (Level 2). We adhere to established processes to monitor the pricing services’ assumptions and challenge the valuations that appear unusual or unexpected. Multiple quotes or prices may be obtained in this process and we determine which fair value is most appropriate based on market information and analysis. Quotes obtained through this process are generally non-binding. We follow established procedures to ensure that assets and liabilities are properly classified in the fair value hierarchy. Level 2 securities include SBA loan pool securities, U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities, non-agency residential mortgage-backed securities, non-agency commercial mortgage-backed securities, collateralized loan obligations, and corporate debt securities. When a market is illiquid or there is a lack of transparency around the inputs to valuation, including at least one unobservable input, the securities are classified as Level 3 and reliance is placed upon internally developed models and management’s judgment and evaluation for valuation. Derivative Assets and Liabilities: Cash Flow Hedge. We have entered into pay-fixed, receive-variable interest rate swap contracts with institutional counterparties to hedge against variability in cash flows attributable to interest rate risk caused by changes in interest rates on our deposits and borrowings. We estimate the fair value of these contracts based on inputs from a third-party pricing model, which incorporates such factors as the Treasury curve, SOFR rates, and the pay rate on the interest rate swaps. The fair value of these derivatives is based on a discounted cash flow approach. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of interest rate swaps is classified as Level 2. Interest Rate Swaps. We offer interest rate swap products to certain loan clients to allow them to hedge the risk of rising interest rates on their variable rate loans. We originate a variable rate loan and enter into a variable-to-fixed interest rate swap with the client. We also enter into an offsetting swap with a correspondent bank. These back-to-back agreements are intended to offset each other and allow us to originate a variable rate loan while providing a contract for fixed interest payments for the client. The net cash flow for us is equal to the interest income received from a variable rate loan originated with the client plus a fee. The fair value of these derivatives is based on a discounted cash flow approach. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of interest rate swaps is classified as Level 2. Foreign Exchange Contracts. We offer short-term foreign exchange contracts to customers to purchase and/or sell foreign currencies at set rates in the future. These products allow customers to hedge the foreign exchange rate risk of their deposits and loans denominated in foreign currencies. In conjunction with these products, we also enter into offsetting back-to-back contracts with institutional counterparties to hedge our foreign exchange rate risk. These back-to-back contracts are intended to offset each other and allow us to offer our customers foreign exchange products. The fair value of both of these offsetting asset and liability instruments is based on the change in the underlying foreign exchange rate. We are subject to counterparty risk in the event our customers or institutional counterparties default under these contracts. Given the short-term nature of the contracts, the counterparties’ credit risks are considered nominal and typically result in no adjustments to the valuation of the short-term foreign exchange contracts. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of these contracts is classified as Level 2. Interest Rate Swaptions. In connection with our proposed merger with PacWest, we entered into pay-fixed, receive-variable interest rate swaption contracts with institutional counterparties to mitigate rising interest rate risk from the time the merger was announced through the closing date. We receive estimated fair value for these contracts from a third-party pricing which reflected mid-market values obtained from market pricing data sources available for comparable transactions in the over the counter (“OTC”) interest rate derivative market. These sources are believed to be reliable. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of interest rate swaptions is classified as Level 2. Contingent Forward Loan Sale Agreement. In connection with our proposed merger with PacWest, we entered into a contingent forward loan sale agreement for the sale of $1.8 billion of our SFR loan portfolio. These commitments are valued using the terms of the agreement that includes available market pricing sources that reflect the commitments particular product, coupon, and settlement. These derivatives are classified as Level 2. The following table presents our financial assets and liabilities measured at fair value on a recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs September 30, 2023 Assets Securities available-for-sale: SBA loan pools securities $ 8,699 $ — $ 8,699 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 76,844 — 76,844 — U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 85,832 — 85,832 — Non-agency residential mortgage-backed securities 104,960 — 104,960 — Collateralized loan obligations 483,804 — 483,804 — Corporate debt securities 154,915 — 154,915 — Derivative assets: Contingent forward loan sale agreement 34,902 — 34,902 — Interest rate swaptions 27,003 — 27,003 — Cash flow hedges 5,874 — 5,874 — Interest rate swaps and foreign exchange contracts 2,846 — 2,846 — Liabilities Derivative liabilities: Interest rate swaps and foreign exchange contracts (1) 2,799 — 2,799 — December 31, 2022 Assets Securities available-for-sale: SBA loan pools securities $ 11,187 $ — $ 11,187 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 40,206 — 40,206 — U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 93,191 — 93,191 — Municipal securities — — — — Non-agency residential mortgage-backed securities 80,492 — 80,492 — Collateralized loan obligations 476,603 — 476,603 — Corporate debt securities 166,618 — 166,618 — Derivative assets: Interest rate swaps and foreign exchange contracts 2,292 — 2,292 — Liabilities Derivative liabilities: Interest rate swaps and foreign exchange contracts (1) 2,251 — 2,251 — (1) Included in accrued expenses and other liabilities in the consolidated statements of financial condition. There were no assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and nine months ended September 30, 2023 and 2022. Assets and Liabilities Measured on a Non-Recurring Basis Individually Evaluated Loans: The fair value of individually evaluated loans with specific allocations of the ACL based on collateral values is generally derived from recent real estate appraisals and automated valuation models (“AVMs”). These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the appraisers for differences between the comparable sales and income data available. Such adjustments are typically deemed significant unobservable inputs used for determining fair value and result in a Level 3 classification. Other Real Estate Owned (“OREO”): The fair value of OREO is generally based on recent real estate appraisals, less estimated costs to sell. 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 for differences between the comparable sales and income data available. Such adjustments are typically deemed significant unobservable inputs used for determining fair value and result in a Level 3 classification. The following table presents our financial assets and liabilities measured at fair value on a non-recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Fair Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs September 30, 2023 Assets Individually evaluated loans: Commercial and industrial $ 756 $ — $ — $ 756 SBA 9 — — 9 Other real estate owned: Single family residential 882 — — 882 December 31, 2022 Assets Individually evaluated loans: Single family residential mortgage $ 3,600 $ — $ — $ 3,600 Commercial and industrial 7,115 — — 7,115 SBA 3,704 — — 3,704 The following table presents the gains (losses) recognized on assets measured at fair value on a non-recurring basis for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Individually evaluated loans: Single family residential mortgage $ — $ 135 $ (43) $ (205) Commercial and industrial (9,994) (441) (22,294) (1,639) SBA (154) (35) (229) (207) Other consumer (95) — (265) (243) Commercial real estate — — (300) — Other real estate owned: Single family residential — — (165) — 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 Amount Fair Value Measurement Level ($ in thousands) Level 1 Level 2 Level 3 Total September 30, 2023 Financial assets Cash and cash equivalents $ 310,985 $ 310,985 $ — $ — $ 310,985 Securities held-to-maturity 328,287 — 250,285 — 250,285 Securities available-for-sale 915,054 — 915,054 — 915,054 Federal Home Loan Bank and other bank stock 60,336 — 60,336 — 60,336 Loans receivable, net of allowance for credit losses 6,886,642 — — 6,261,148 6,261,148 Accrued interest receivable 39,494 39,494 — — 39,494 Derivative assets 70,625 — 70,625 — 70,625 Financial liabilities Deposits 6,640,630 5,054,976 1,576,721 — 6,631,697 Advances from Federal Home Loan Bank and Federal Reserve Bank borrowings 1,008,293 — 974,319 — 974,319 Other borrowings 185,802 — 185,802 — 185,802 Long-term debt 274,279 — 261,313 — 261,313 Derivative liabilities (1) 2,799 — 2,799 — 2,799 Accrued interest payable 21,187 21,187 — — 21,187 December 31, 2022 Financial assets Cash and cash equivalents $ 228,896 $ 228,896 $ — $ — $ 228,896 Securities held-to-maturity 328,641 — 262,460 — 262,460 Securities available-for-sale 868,297 — 868,297 — 868,297 Federal Home Loan Bank and other bank stock 57,092 — 57,092 — 57,092 Loans receivable, net of allowance for credit losses 7,029,078 — — 6,526,916 6,526,916 Accrued interest receivable 37,942 37,942 — — 37,942 Derivative assets 2,292 — 2,292 — 2,292 Financial liabilities Deposits 7,120,921 5,931,500 1,175,857 — 7,107,357 Advances from Federal Home Loan Bank 727,348 — 699,730 — 699,730 Long-term debt 274,906 — 269,673 — 269,673 Derivative liabilities (1) 2,251 — 2,251 — 2,251 Accrued interest payable 7,004 7,004 — — 7,004 (1) Included in accrued expenses and other liabilities in the consolidated statements of financial condition.

INVESTMENT SECURITIES

INVESTMENT SECURITIES	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
INVESTMENT SECURITIES	INVESTMENT SECURITIES The following table presents the amortized cost and fair value of the investment securities portfolio as of the dates indicated: ($ in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Allowance Fair September 30, 2023 Securities held-to-maturity: U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ 152,748 $ — $ (35,680) $ — $ 117,068 U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 61,337 — (15,688) — 45,649 Municipal securities 114,202 — (26,634) — 87,568 Total securities held-to-maturity $ 328,287 $ — $ (78,002) $ — $ 250,285 Securities available-for-sale: SBA loan pool securities $ 8,721 $ 5 $ (27) $ — $ 8,699 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 79,786 — (2,942) — 76,844 U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 93,696 — (7,864) — 85,832 Non-agency residential mortgage-backed securities 120,062 — (15,102) — 104,960 Collateralized loan obligations 489,940 — (6,136) — 483,804 Corporate debt securities 175,804 — (19,853) (1,036) 154,915 Total securities available-for-sale $ 968,009 $ 5 $ (51,924) $ (1,036) $ 915,054 December 31, 2022 Securities held-to-maturity: U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ 153,033 $ — $ (29,807) $ — $ 123,226 U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 61,404 — (11,946) — 49,458 Municipal securities 114,204 — (24,428) — 89,776 Total securities held-to-maturity $ 328,641 $ — $ (66,181) $ — $ 262,460 Securities available-for-sale: SBA loan pool securities $ 11,241 $ — $ (54) $ — $ 11,187 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 40,431 — (225) — 40,206 U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 99,075 — (5,884) — 93,191 Non-agency residential mortgage-backed securities 90,832 — (10,340) — 80,492 Collateralized loan obligations 492,203 — (15,600) — 476,603 Corporate debt securities 175,781 32 (9,195) — 166,618 Total securities available-for-sale $ 909,563 $ 32 $ (41,298) $ — $ 868,297 During the first quarter of 2022, certain longer-duration fixed-rate mortgage-backed securities and municipal securities with an amortized cost basis of $346.0 million were transferred from the available-for-sale (“AFS”) portfolio to the held-to-maturity (“HTM”) portfolio. At the time of the transfer, the securities had an unrealized gross loss of $16.6 million, which became part of the securities’ amortized cost basis. This amount, along with the unrealized loss included in accumulated other comprehensive income, is subsequently amortized over the remaining life of the security as an adjustment to its yield using the interest method. As a result, there is no impact on the consolidated statements of operations. At September 30, 2023, the gross unrealized loss included in accumulated other comprehensive income was $15.0 million. At September 30, 2023, our investment securities portfolio consisted of agency securities, municipal securities, mortgage-backed securities (“MBS”), collateralized loan obligations (“CLOs”), and corporate debt securities. The expected maturities of these types of securities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Accrued interest receivable on AFS and HTM securities totaled $11.8 million and $9.2 million at September 30, 2023 and December 31, 2022, and is included within other assets in the accompanying consolidated statements of financial condition. At September 30, 2023 and December 31, 2022, there were no holdings of any one issuer, other than U.S. government agency and sponsored enterprises, in an amount greater than 10 percent of our stockholders’ equity. Pledged Securities Investment securities with carrying values of $525.7 million and $356.5 million as of September 30, 2023 and December 31, 2022 were pledged to secure FHLB advances, FRB borrowings, public deposits and for other deposits as required or permitted by law. Securities Available-for-Sale The following table presents proceeds from sales and calls of AFS securities and the associated gross gains and losses realized through earnings upon the sales and calls of AFS securities for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Gross realized gains $ — $ — $ — $ 209 Gross realized losses — — — (193) Net realized gains on sales and calls $ — $ — $ — $ 16 Proceeds from sales and calls $ — $ — $ 20,000 $ 56,145 The following table summarizes the AFS investment securities with unrealized losses by security type and length of time in a continuous, unrealized loss position as of the dates indicated: Less Than 12 Months 12 Months or Longer Total ($ in thousands) Fair Gross Unrealized Losses Fair Gross Unrealized Losses Fair Gross Unrealized Losses September 30, 2023 Securities available-for-sale: SBA loan pool securities $ — $ — $ 7,060 $ (27) $ 7,060 $ (27) U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 76,844 (2,942) — — 76,844 (2,942) U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 50,151 (1,131) 35,690 (6,733) 85,841 (7,864) Non-agency residential mortgage-backed securities 67,769 (3,112) 37,191 (11,990) 104,960 (15,102) Collateralized loan obligations 24,859 (141) 441,944 (5,995) 466,803 (6,136) Corporate debt securities 14,774 (1,430) 140,140 (18,423) 154,914 (19,853) Total securities available-for-sale $ 234,397 $ (8,756) $ 662,025 $ (43,168) $ 896,422 $ (51,924) December 31, 2022 Securities available-for-sale: SBA loan pool securities $ 2,260 $ (3) $ 8,927 $ (51) $ 11,187 $ (54) U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 40,206 (225) — — 40,206 (225) U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 76,441 (2,533) 16,750 (3,351) 93,191 (5,884) Non-agency residential mortgage-backed securities 80,492 (10,340) — — 80,492 (10,340) Collateralized loan obligations 235,936 (7,492) 240,667 (8,108) 476,603 (15,600) Corporate debt securities 159,492 (8,374) 4,180 (821) 163,672 (9,195) Total securities available-for-sale $ 594,827 $ (28,967) $ 270,524 $ (12,331) $ 865,351 $ (41,298) At September 30, 2023, our AFS securities portfolio consisted of 86 securities, of which 84 securities were in an unrealized loss position. At December 31, 2022, our AFS securities portfolio consisted of 77 securities, of which 76 securities were in an unrealized loss position. We monitor our securities portfolio for identification of potential credit impairment. During the three and nine months ended September 30, 2023, we recognized zero and $1.0 million in provision for credit losses on three corporate debt securities of other financial institutions that were downgraded to below investment grade by external credit agencies. During the three and nine months ended September 30, 2022, there was no provision for credit losses related to AFS or HTM securities. Except for the corporate debt securities noted above, we believe there was no credit impairment and the decline in fair value of our securities since acquisition was attributable to a combination of changes in interest rates and general volatility in market conditions. As of September 30, 2023, we did not have the intent to sell securities in an unrealized loss position and further believe, it is more likely than not, that we will not be required to sell these securities before their anticipated recovery. As of September 30, 2023, 81 of our 84 AFS securities in an unrealized loss position received an investment grade credit rating, and all of our HTM securities in an unrealized loss position received an investment grade credit rating. The following table presents the amortized cost and fair value of the investment securities portfolio as of September 30, 2023, based on the earlier of contractual maturity dates or next repricing date: Held-to-Maturity Available-for-Sale ($ in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Earlier of maturity or next repricing date: Within one year $ — $ — $ 503,799 $ 497,569 One to five years — — 171,294 150,580 Five to ten years 37,305 30,544 41,786 34,950 Greater than ten years 290,982 219,741 251,130 231,955 Total $ 328,287 $ 250,285 $ 968,009 $ 915,054 Contractual maturities may not reflect the actual maturities of the investments. The average lives for MBS and collateralized mortgage obligations (“CMOs”) will likely be shorter than their contractual maturities due to prepayments and amortization. The following table presents the fair value and weighted average yields using amortized cost of the AFS securities portfolio as of September 30, 2023, based on the earlier of contractual maturity dates or next repricing dates: One year or less More than One Year through Five Years More than Five Years through Ten Years More than Ten Years Total ($ in thousands) Fair Weighted-Average Yield Fair Weighted-Average Yield Fair Weighted-Average Yield Fair Weighted-Average Yield Fair Weighted-Average Yield Securities available-for-sale: SBA loan pool securities $ 8,699 5.79 % $ — — % $ — — % $ — — % $ 8,699 5.79 % U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities — — % — — % — — % 76,844 5.52 % 76,844 5.52 % U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 5,066 5.98 % 7,528 3.72 % 23,087 3.25 % 50,151 5.21 % 85,832 4.52 % Non-agency residential mortgage-backed securities — — % — — % — — % 104,960 4.02 % 104,960 4.02 % Collateralized loan obligations 483,804 7.20 % — — % — — % — — % 483,804 7.20 % Corporate debt securities — — % 143,052 4.82 % 11,863 5.73 % — — % 154,915 4.89 % Total securities available-for-sale $ 497,569 7.16 % $ 150,580 4.76 % $ 34,950 4.04 % $ 231,955 4.74 % $ 915,054 5.97 % The following table presents the amortized cost and weighted average yields using amortized cost of the HTM securities portfolio as of September 30, 2023, based on the earlier of contractual maturity dates or next repricing dates: One year or less More than One Year through Five Years More than Five Years through Ten Years More than Ten Years Total ($ in thousands) Amortized Weighted-Average Yield Amortized Weighted-Average Yield Amortized Weighted-Average Yield Amortized Weighted-Average Yield Amortized Weighted-Average Yield Securities held-to-maturity: U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ — — % $ — — % $ 9,334 2.52 % $ 143,414 2.70 % $ 152,748 2.69 % U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations — — % — — % — — % 61,337 2.64 % 61,337 2.64 % Municipal securities — — % — — % 27,971 2.32 % 86,231 2.72 % 114,202 2.62 % Total securities held-to-maturity $ — — % $ — — % $ 37,305 2.37 % $ 290,982 2.69 % $ 328,287 2.65 %

LOANS AND ALLOWANCE FOR CREDIT

LOANS AND ALLOWANCE FOR CREDIT LOSSES	9 Months Ended
	Sep. 30, 2023
Receivables [Abstract]
LOANS AND ALLOWANCE FOR CREDIT LOSSES	LOANS AND ALLOWANCE FOR CREDIT LOSSES The following table presents the balances in our loan portfolio as of the dates indicated: ($ in thousands) September 30, December 31, Commercial: Commercial and industrial (1)(2) $ 1,942,964 $ 1,845,960 Commercial real estate (2) 1,173,332 1,259,651 Multifamily 1,654,272 1,689,943 SBA 56,600 68,137 Construction 262,715 243,553 Consumer: Single family residential mortgage 1,782,655 1,920,806 Other consumer 88,494 86,988 Total loans $ 6,961,032 $ 7,115,038 Allowance for loan losses (74,390) (85,960) Loans receivable, net $ 6,886,642 $ 7,029,078 (1) Includes warehouse lending balances of $647.7 million and $602.5 million at September 30, 2023 and December 31, 2022. (2) $102.3 million of owner-occupied CRE loans were moved to the C&I category from the CRE category during the third quarter of 2023. The following table presents the balances of total loans as of the dates indicated: ($ in thousands) September 30, December 31, Unpaid principal balance $ 6,953,895 $ 7,107,897 Unamortized net premiums 16,571 18,319 Unamortized net deferred (fees) costs (1,331) (1,880) Fair value adjustment (1) (8,103) (9,298) Total loans $ 6,961,032 $ 7,115,038 (1) At September 30, 2023, balance includes $7.1 million related to the acquisition of Pacific Mercantile Bancorp (“PMB”), of which $3.6 million related to purchased credit deteriorated (“PCD”) loans. At December 31, 2022, includes $8.0 million related to the PMB acquisition, of which $4.1 million related to PCD loans. Credit Quality Indicators We categorize loans into risk categories based on relevant information about the ability of borrowers to repay their debt such as current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. We analyze the associated risks in the current loan portfolio and individually grade each loan for credit risk. This analysis includes all loans delinquent over 60 days and non-homogeneous loans such as commercial and commercial real estate (“CRE”) loans. We use the following definitions for risk ratings: Pass : Loans risk rated “Pass” are in compliance in all respects with the Bank’s credit policy and regulatory requirements, and do not exhibit any potential or defined weakness as defined under “Special Mention”, “Substandard” or “Doubtful.” Special Mention : Loans risk rated “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 loans or of our credit position at some future date. Substandard : Loans risk rated “Substandard” are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or a weakness that jeopardizes the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. Doubtful : Loans risk rated “Doubtful” have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The following table presents the risk categories for total loans by class of loans and origination year as of September 30, 2023: Term Loans Amortized Cost Basis by Origination Year ($ in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis Total September 30, 2023 Commercial: Commercial and industrial Pass $ 102,946 $ 269,069 $ 206,543 $ 65,557 $ 37,272 $ 229,611 $ 935,283 $ 34,257 $ 1,880,538 Special mention — 5,368 4,499 — 10,370 10,231 2,252 1,354 34,074 Substandard — 3,560 32 14 200 12,843 5,009 1,978 23,636 Doubtful (1) 3,910 — — — — — 806 — 4,716 Commercial and industrial (1) 106,856 277,997 211,074 65,571 47,842 252,685 943,350 37,589 1,942,964 Commercial real estate Pass 58,551 352,908 297,564 46,183 80,265 316,530 1,575 54 1,153,630 Special mention — 1,953 8,549 — — — — — 10,502 Substandard — 540 — — 7,175 648 — 837 9,200 Doubtful — — — — — — — — — Commercial real estate (1) 58,551 355,401 306,113 46,183 87,440 317,178 1,575 891 1,173,332 Multifamily Pass 23,474 623,794 396,291 152,985 223,079 205,461 1,087 9,169 1,635,340 Special mention — — — 3,000 — — — — 3,000 Substandard — — — — 1,117 14,815 — — 15,932 Doubtful — — — — — — — — — Multifamily 23,474 623,794 396,291 155,985 224,196 220,276 1,087 9,169 1,654,272 SBA Pass — 9,231 10,456 3,472 5,197 17,814 63 420 46,653 Special mention — — 672 — — 555 — 1 1,228 Substandard — — — 295 860 6,422 351 489 8,417 Doubtful — — — — — — — 302 302 SBA — 9,231 11,128 3,767 6,057 24,791 414 1,212 56,600 Construction Pass 3,303 104,244 102,157 27,825 — 24,971 215 — 262,715 Special mention — — — — — — — — — Substandard — — — — — — — — — Doubtful — — — — — — — — — Construction 3,303 104,244 102,157 27,825 — 24,971 215 — 262,715 Consumer: Single family residential mortgage Pass — 582,049 757,366 69,361 41,601 277,965 2,029 — 1,730,371 Special mention — 6,128 1,741 — — 3,910 — — 11,779 Substandard — 10,745 10,152 2,162 — 15,582 1,864 — 40,505 Doubtful — — — — — — — — — Single family residential mortgage — 598,922 769,259 71,523 41,601 297,457 3,893 — 1,782,655 Other consumer Pass 22,449 17,239 12,888 7,119 3,768 13,176 9,645 1,404 87,688 Special mention — — — — — 1 349 — 350 Substandard — — — 167 117 41 81 50 456 Doubtful — — — — — — — — — Other consumer 22,449 17,239 12,888 7,286 3,885 13,218 10,075 1,454 88,494 Total loans $ 214,633 $ 1,986,828 $ 1,808,910 $ 378,140 $ 411,021 $ 1,150,576 $ 960,609 $ 50,315 $ 6,961,032 Total loans Pass $ 210,723 $ 1,958,534 $ 1,783,265 $ 372,502 $ 391,182 $ 1,085,528 $ 949,897 $ 45,304 $ 6,796,935 Special mention — 13,449 15,461 3,000 10,370 14,697 2,601 1,355 60,933 Substandard — 14,845 10,184 2,638 9,469 50,351 7,305 3,354 98,146 Doubtful (2) 3,910 — — — — — 806 302 5,018 Total loans $ 214,633 $ 1,986,828 $ 1,808,910 $ 378,140 $ 411,021 $ 1,150,576 $ 960,609 $ 50,315 $ 6,961,032 (1) $102.3 million of owner-occupied CRE loans were moved to the C&I category from the CRE category during the third quarter of 2023. (2) Doubtful loans in origination year 2023 included one commercial and industrial (“C&I”) loan that was modified and accounted for as a new loan. The following table presents the risk categories for total loans by class of loans and origination year as of December 31, 2022: Term Loans Amortized Cost Basis by Origination Year ($ in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis Total December 31, 2022 Commercial: Commercial and industrial Pass $ 269,367 $ 170,513 $ 62,931 $ 53,001 $ 76,811 $ 164,394 $ 932,464 $ 19,803 $ 1,749,284 Special mention — 19,203 1,042 — 1 11,528 17,142 483 49,399 Substandard 3,833 64 3,002 502 3,630 2,729 23,012 6,501 43,273 Doubtful — — — 4,004 — — — — 4,004 Commercial and industrial 273,200 189,780 66,975 57,507 80,442 178,651 972,618 26,787 1,845,960 Commercial real estate Pass 348,298 363,335 60,564 94,772 155,790 224,213 1,163 61 1,248,196 Special mention — — — — — 1,745 — — 1,745 Substandard — — — — 1 8,799 910 — 9,710 Doubtful — — — — — — — — — Commercial real estate 348,298 363,335 60,564 94,772 155,791 234,757 2,073 61 1,259,651 Multifamily Pass 626,186 390,928 154,636 229,511 109,887 138,063 3 9,307 1,658,521 Special mention — — 2,997 — — — — — 2,997 Substandard — — — — 11,069 17,356 — — 28,425 Doubtful — — — — — — — — — Multifamily 626,186 390,928 157,633 229,511 120,956 155,419 3 9,307 1,689,943 SBA Pass 9,421 15,468 4,009 5,899 1,176 19,090 603 123 55,789 Special mention — — — — 201 598 — 1 800 Substandard — — 320 339 385 9,097 628 779 11,548 Doubtful — — — — — — — — — SBA 9,421 15,468 4,329 6,238 1,762 28,785 1,231 903 68,137 Construction Pass 85,430 98,572 27,704 6,495 — 25,352 — — 243,553 Special mention — — — — — — — — — Substandard — — — — — — — — — Doubtful — — — — — — — — — Construction 85,430 98,572 27,704 6,495 — 25,352 — — 243,553 Consumer: Single family residential mortgage Pass 627,213 797,744 72,658 47,284 89,492 255,520 — — 1,889,911 Special mention 1,716 218 — 1,537 3,378 2,252 — — 9,101 Substandard 3,571 — 2,171 — 8,573 7,479 — — 21,794 Doubtful — — — — — — — — — Single family residential mortgage 632,500 797,962 74,829 48,821 101,443 265,251 — — 1,920,806 Other consumer Pass 23,340 15,986 8,805 5,524 3,363 15,920 10,914 2,747 86,599 Special mention — — — 3 — 19 62 54 138 Substandard — — 56 — 83 31 81 — 251 Doubtful — — — — — — — — — Other consumer 23,340 15,986 8,861 5,527 3,446 15,970 11,057 2,801 86,988 Total loans $ 1,998,375 $ 1,872,031 $ 400,895 $ 448,871 $ 463,840 $ 904,185 $ 986,982 $ 39,859 $ 7,115,038 Total loans Pass $ 1,989,255 $ 1,852,546 $ 391,307 $ 442,486 $ 436,519 $ 842,552 $ 945,147 $ 32,041 $ 6,931,853 Special mention 1,716 19,421 4,039 1,540 3,580 16,142 17,204 538 64,180 Substandard 7,404 64 5,549 841 23,741 45,491 24,631 7,280 115,001 Doubtful — — — 4,004 — — — — 4,004 Total loans $ 1,998,375 $ 1,872,031 $ 400,895 $ 448,871 $ 463,840 $ 904,185 $ 986,982 $ 39,859 $ 7,115,038 Past Due Loans The following table presents the aging of the recorded investment in past due loans, excluding accrued interest receivable (which is not considered to be material), by class of loans as of the dates indicated: ($ in thousands) 30 - 59 Days Past Due 60 - 89 Days Past Due Greater than 89 Days Past due Total Past Due Current Total September 30, 2023 Commercial: Commercial and industrial $ 452 $ 2,452 $ 9,210 $ 12,114 $ 1,930,850 $ 1,942,964 Commercial real estate 1,326 3,569 1,324 6,219 1,167,113 1,173,332 Multifamily — — 1,118 1,118 1,653,154 1,654,272 SBA 273 481 7,193 7,947 48,653 56,600 Construction — — — — 262,715 262,715 Consumer: Single family residential mortgage 25,437 16,064 20,702 62,203 1,720,452 1,782,655 Other consumer 454 50 145 649 87,845 88,494 Total $ 27,942 $ 22,616 $ 39,692 $ 90,250 $ 6,870,782 $ 6,961,032 December 31, 2022 Commercial: Commercial and industrial $ 4,002 $ 481 $ 13,833 $ 18,316 $ 1,827,644 $ 1,845,960 Commercial real estate 311 — 910 1,221 1,258,430 1,259,651 Multifamily — — — — 1,689,943 1,689,943 SBA 287 — 10,299 10,586 57,551 68,137 Construction — — — — 243,553 243,553 Consumer: Single family residential mortgage 36,338 5,068 19,431 60,837 1,859,969 1,920,806 Other consumer 163 16 81 260 86,728 86,988 Total $ 41,101 $ 5,565 $ 44,554 $ 91,220 $ 7,023,818 $ 7,115,038 Nonaccrual Loans The following table presents nonaccrual loans as of the dates indicated: September 30, 2023 December 31, 2022 ($ in thousands) Total Nonaccrual Loans with no ACL Total Nonaccrual Loans with no ACL Nonaccrual loans Commercial: Commercial and industrial $ 9,713 $ 4,218 $ 22,613 $ 10,959 Commercial real estate 1,864 1,864 910 910 Multi-family 1,118 1,118 — — SBA 7,569 7,481 10,417 5,613 Consumer: Single family residential mortgage 39,836 39,836 21,116 17,187 Other consumer 456 457 195 195 Total nonaccrual loans $ 60,556 $ 54,974 $ 55,251 $ 34,864 At September 30, 2023 and December 31, 2022, there were no loans that were past due 90 days or more and still accruing. Allowance for Credit Losses - Loans The ACL methodology uses a nationally recognized, third-party model that includes many assumptions based on historical and peer loss data, current loan portfolio risk profile including risk ratings, and economic forecasts including macroeconomic variables released by the model provider during September 2023. The published forecasts consider the Federal Reserve’s monetary policy, labor market constraints, inflation levels, global oil prices and changes in real estate values, among other factors. The ACL also incorporates qualitative factors to account for certain loan portfolio characteristics that are not taken into consideration by the third-party model including underlying strengths and weaknesses in various segments of the loan portfolio. As is the case with all estimates, the ACL is expected to be impacted in future periods by economic volatility, changing economic forecasts, underlying model assumptions, and asset quality metrics, all of which may be better or worse than current estimates. The ACL process involves subjective and complex judgments as well as adjustments for numerous factors including those described in the federal banking agencies’ joint interagency policy statement on ALL, which include underwriting experience and collateral value changes, among others. The RUC is established to cover the current expected credit losses for the estimated level of funding of these loan commitments, except for unconditionally cancellable commitments for which no reserve is required under ASC 326. At September 30, 2023 and December 31, 2022, the reserve for unfunded loan commitments was $4.0 million and $5.3 million and was included in accrued expenses and other liabilities on the consolidated statements of financial condition. The following table presents a summary of activity in the ACL for the periods indicated: Three Months Ended September 30, ($ in thousands) 2023 2022 Allowance Reserve for Unfunded Loan Commitments Allowance Allowance Reserve for Unfunded Loan Commitments Allowance Balance at beginning of period $ 80,883 $ 4,005 $ 84,888 $ 93,793 $ 5,905 $ 99,698 Charge-offs (11,644) — (11,644) (912) — (912) Recoveries 151 — 151 63 — 63 Net (charge-offs) recoveries (11,493) — (11,493) (849) — (849) Provision for (reversal of) credit losses 5,000 — 5,000 (500) 500 — Balance at end of period $ 74,390 $ 4,005 $ 78,395 $ 92,444 $ 6,405 $ 98,849 Nine Months Ended September 30, ($ in thousands) 2023 2022 Allowance Reserve for Unfunded Loan Commitments Allowance Allowance Reserve for Unfunded Loan Commitments Allowance Balance at beginning of period $ 85,960 $ 5,305 $ 91,265 $ 92,584 $ 5,605 $ 98,189 Charge-offs (21,260) — (21,260) (1,637) — (1,637) Recoveries 526 — 526 33,839 — 33,839 Net (charge-offs) recoveries (20,734) — (20,734) 32,202 — 32,202 Provision for (reversal of) credit losses 9,164 (1,300) 7,864 (32,342) 800 (31,542) Balance at end of period $ 74,390 $ 4,005 $ 78,395 $ 92,444 $ 6,405 $ 98,849 During the nine months ended September 30, 2022 , total recoveries included $31.3 million related to a recovery from the settlement of a loan previously charged-off in 2019. This recovery resulted in a reversal of provision for credit losses during the same period. Accrued interest receivable on loans receivable, net totaled $26.6 million and $28.6 million at September 30, 2023 and December 31, 2022, and is included within other assets in the accompanying consolidated statements of financial condition. Accrued interest receivable is excluded from the allowance of credit losses. The following table presents the activity and balance in the ALL as of or for the three and nine months ended September 30, 2023: ($ in thousands) Commercial and Industrial Commercial Real Estate Multifamily SBA Construction Single Family Residential Mortgage Other Consumer Total ALL: Three Months Ended September 30, 2023: Balance at June 30, 2023 $ 32,823 $ 15,767 $ 14,697 $ 1,387 $ 6,053 $ 9,518 $ 638 $ 80,883 Charge-offs (11,363) — — (169) — — (112) (11,644) Recoveries 22 — — 6 — 1 122 151 Net (charge-offs) recoveries (11,341) — — (163) — 1 10 (11,493) Provision for (reversal of) credit losses - loans 8,160 (2,594) (734) (142) 116 267 (73) 5,000 Balance at September 30, 2023 $ 29,642 $ 13,173 $ 13,963 $ 1,082 $ 6,169 $ 9,786 $ 575 $ 74,390 Nine Months Ended September 30, 2023: Balance at December 31, 2022 $ 34,156 $ 15,977 $ 14,696 $ 2,648 $ 5,850 $ 12,050 $ 583 $ 85,960 Charge-offs (19,074) (300) — (1,250) — (372) (264) (21,260) Recoveries 61 — — 316 — 3 146 526 Net (charge-offs) recoveries (19,013) (300) — (934) — (369) (118) (20,734) Provision for (reversal of) credit losses - loans 14,499 (2,504) (733) (632) 319 (1,895) 110 9,164 Balance at September 30, 2023 $ 29,642 $ 13,173 $ 13,963 $ 1,082 $ 6,169 $ 9,786 $ 575 $ 74,390 The following table presents the activity and balance in the ALL as of or for the three and nine months ended September 30, 2022: ($ in thousands) Commercial and Industrial Commercial Real Estate Multifamily SBA Construction Single Family Residential Mortgage Other Consumer Total ALL: Three Months Ended September 30, 2022: Balance at June 30, 2022 $ 41,413 $ 15,742 $ 15,678 $ 3,033 $ 4,255 $ 12,805 $ 867 $ 93,793 Charge-offs (867) — — (45) — — — (912) Recoveries 48 3 — 1 — 1 10 63 Net recoveries (charge-offs) (819) 3 — (44) — 1 10 (849) Provision for (reversal of) credit losses - loans (1,769) 1,091 275 (29) 1,168 (959) (277) (500) Balance at September 30, 2022 $ 38,825 $ 16,836 $ 15,953 $ 2,960 $ 5,423 $ 11,847 $ 600 $ 92,444 Nine Months Ended September 30, 2022: Balance at December 31, 2021 $ 33,557 $ 21,727 $ 17,893 $ 3,017 $ 5,622 $ 9,608 $ 1,160 $ 92,584 Charge-offs (1,187) — — (197) — (10) (243) (1,637) Recoveries 32,865 3 — 762 — 193 16 33,839 Net recoveries (charge-offs) 31,678 3 — 565 — 183 (227) 32,202 (Reversal of) provision for credit losses - loans (26,410) (4,894) (1,940) (622) (199) 2,056 (333) (32,342) Balance at September 30, 2022 $ 38,825 $ 16,836 $ 15,953 $ 2,960 $ 5,423 $ 11,847 $ 600 $ 92,444 The following table presents the gross charge-offs by class of loans and origination year as of September 30, 2023: Gross Charge-offs ($ in thousands) 2023 2022 2021 2020 2019 Prior Total Three Months Ended September 30, 2023 Commercial: Commercial and industrial $ — $ (1,828) $ (368) $ (5,997) $ — $ (3,170) $ (11,363) SBA — — — — — (169) (169) Consumer: Other consumer — — (112) — — — (112) Total loans $ — $ (1,828) $ (480) $ (5,997) $ — $ (3,339) $ (11,644) Nine Months Ended September 30, 2023 Commercial: Commercial and industrial $ — $ (7,545) $ (1,453) $ (5,997) $ — $ (4,079) $ (19,074) Commercial real estate — — — — — (300) (300) SBA — — (64) — — (1,186) (1,250) Consumer: Single family residential mortgage — — — (372) — — (372) Other consumer — (16) (112) (59) — (77) (264) Total loans $ — $ (7,561) $ (1,629) $ (6,428) $ — $ (5,642) $ (21,260) Collateral Dependent Loans A loan is considered collateral dependent when the borrower is experiencing financial difficulty and repayment of the loan is expected to be provided substantially through the operation or sale of the collateral. Collateral dependent loans are evaluated individually and the ALL is determined based on the amount by which amortized costs exceed the estimated fair value of the collateral, adjusted for estimated selling costs. Collateral dependent loans consisted of the following as of the dates indicated: September 30, 2023 Real Estate ($ in thousands) Commercial Residential Business Assets Automobile Total Commercial: Commercial and industrial $ — $ — $ 6,661 $ — $ 6,661 Commercial real estate 1,324 540 — — 1,864 Multifamily 1,118 — — — 1,118 SBA 15 796 6,758 — 7,569 Consumer: Single family residential mortgage — 39,836 — — 39,836 Other consumer — 130 — 326 456 Total loans $ 2,457 $ 41,302 $ 13,419 $ 326 $ 57,504 December 31, 2022 Real Estate ($ in thousands) Commercial Residential Business Assets Automobile Total Commercial: Commercial and industrial $ — $ — $ 18,392 $ — $ 18,392 Commercial real estate 910 — — — 910 SBA 23 4,702 5,691 — 10,416 Consumer: Single family residential mortgage — 21,262 — — 21,262 Other consumer — 81 — 113 194 Total loans $ 933 $ 26,045 $ 24,083 $ 113 $ 51,174 Loan Modifications to Borrowers Experiencing Financial Difficulty Loans modified for borrowers experiencing financial difficulty consisted of the following as of the dates indicated: ($ in thousands) Commercial and industrial Single family residential mortgage Total September 30, 2023 Interest rate reduction: Amortized cost basis $ — $ 2,492 $ 2,492 % of total class of loans — % 0.1 % — % Term extension: Amortized cost basis $ — $ 595 $ 595 % of total class of loans — % — % — % Combination - principal reduction and payment delays: Amortized cost basis $ 3,910 $ — $ 3,910 % of total class of loans 0.2 % — % 0.1 % Combination - term extension and interest rate reduction Amortized cost basis $ 654 $ — $ 654 % of total class of loans — % — % — % Total amortized cost basis $ 4,564 $ 3,087 $ 7,651 Percentage of total class of loans 0.2 % 0.2 % 0.1 % The following table presents the aging of loans modified to borrowers experiencing financial difficulty at September 30, 2023: ($ in thousands) 30-59 Days 60-89 Days Over 90 Days Total Current Total September 30, 2023 Commercial: Commercial and industrial $ — $ — $ 3,910 $ 3,910 $ 654 $ 4,564 Consumer: Single family residential mortgage 309 — — 309 2,778 3,087 $ 309 $ — $ 3,910 $ 4,219 $ 3,432 $ 7,651 There were no loan modifications made to borrowers experiencing financial difficulty during the quarter ended September 30, 2023 that subsequently defaulted. Troubled Debt Restructurings (for modifications to borrowers experiencing financial difficulty prior to January 1, 2023) At September 30, 2023 and December 31, 2022, we had 7 and 15 loans classified as TDRs, with an aggregate balance of $3.5 million and $16.1 million. During the nine months ended September 30, 2023, a $3.9 million C&I loan that was restructured during 2022 was modified and accounted for as a new loan. Additionally, $7.8 million relating to three commercial relationships were paid down and $1.2 million was charged off during this same period. Accruing TDRs were $0.1 million and nonaccrual TDRs were $3.4 million at September 30, 2023, compared to accruing TDRs of $2.7 million and nonaccrual TDRs of $13.4 million at December 31, 2022. Purchases, Sales, and Transfers From time to time, we purchase and sell loans in the secondary market. There were no loans purchased during the three months ended September 30, 2023. During the nine months ended September 30, 2023, we purchased loans aggregating $61.4 million. During the three and nine months ended September 30, 2022, we purchased loans aggregating $172.7 million and $814.3 million. Non-Traditional Mortgage (“NTM”) Loans We no longer originate SFR loans, however we have purchased and may continue to purchase pools of loans that include NTM loans such as interest only loans with maturities of up to 40 years and flexible initial repricing dates, ranging from 1 to 10 years, and periodic repricing dates through the life of the loan. NTM loans are included in our SFR loan portfolio and are comprised primarily of interest only loans. As of September 30, 2023 and December 31, 2022, the NTM loans totaled $792.0 million, or 11.4% of total loans, and $862.3 million, or 12.1% of total loans. The total NTM portfolio decreased by $70.4 million, or 8.2% during the nine months ended September 30, 2023. The decrease was due to principal paydowns and payoffs. At September 30, 2023 and December 31, 2022, nonperforming NTM loans totaled $15.3 million and $3.0 million. NTM loans are considered to have an increased risk of delinquency and default than conforming loans. In the case of interest only loans, the borrower’s monthly payment may increase by a substantial amount as market interest rates increase and as loans are converted to fully-amortizing status. Non-Traditional Mortgage Performance Indicators

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLES	GOODWILL AND OTHER INTANGIBLES Goodwill Goodwill represents the excess consideration paid for net assets acquired in a business combination over their fair values. At September 30, 2023 and December 31, 2022, we had goodwill of $114.3 million. The following table presents changes in the carrying amount of goodwill for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Goodwill, beginning of period $ 114,312 $ 95,127 $ 114,312 $ 94,301 Goodwill from business combination — 18,190 — 18,190 Goodwill adjustments for purchase accounting — 995 — 1,821 Goodwill, end of period $ 114,312 $ 114,312 $ 114,312 $ 114,312 The acquisition of Deepstack in the third quarter of 2022 resulted in the recognition of $18.2 million in goodwill. We also adjusted goodwill during the three and nine months ended September 30, 2022 as a result of updates to the initial fair value of core deposit intangibles and finalization of income tax returns related to the acquisition of PMB. We evaluate goodwill for impairment as of October 1 each year, and more frequently if events or circumstances indicate that there may be impairment. We completed our most recent annual goodwill impairment test as of October 1, 2022 and determined that no goodwill impairment existed. For the three and nine months ended September 30, 2023, we analyzed indicators related to potential goodwill impairment due to volatility in the financial markets and recent events in the banking sector. Based on this analysis, we did not identify any impairment to goodwill. Other Intangibles Other intangibles are comprised of the following at September 30, 2023 and December 31, 2022: ($ in thousands) September 30, December 31, Core deposit intangibles $ 3,078 $ 3,932 Developed technology 2,216 2,637 Other intangibles 848 957 Total other intangibles $ 6,142 $ 7,526 Other intangibles are amortized over their estimated useful lives and reviewed for impairment at least quarterly. As of September 30, 2023, the weighted average remaining amortization period for core deposit intangibles was approximately 6.2 years. Amortization periods for developed technology and other intangibles acquired in the acquisition of Deepstack have useful lives ranging from 3 to 10 years. The following table presents changes in the carrying amount of other intangibles for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Other intangibles: Balance, beginning of period $ 38,778 $ 34,978 $ 38,778 $ 35,958 Other intangibles from business combination — 3,800 — 3,800 Purchase accounting adjustments — — — (980) Balance, end of period 38,778 38,778 38,778 38,778 Accumulated amortization: Balance, beginning of period 32,175 30,301 31,252 29,547 Amortization of other intangibles 461 396 1,384 1,150 Balance, end of period 32,636 30,697 32,636 30,697 Other intangibles $ 6,142 $ 8,081 $ 6,142 $ 8,081 The following table presents estimated future amortization expense of other intangibles as of September 30, 2023: ($ in thousands) Remainder of 2023 2024 2025 2026 2027 2028 and After Total Estimated future amortization expense $ 415 $ 1,425 $ 1,107 $ 1,013 $ 811 $ 1,371 $ 6,142

FEDERAL HOME LOAN BANK ADVANCES

FEDERAL HOME LOAN BANK ADVANCES, FEDERAL RESERVE BANK BORROWINGS AND OTHER BORROWINGS	9 Months Ended
	Sep. 30, 2023
Federal Home Loan Banks [Abstract]
FEDERAL HOME LOAN BANK ADVANCES, FEDERAL RESERVE BANK BORROWINGS AND OTHER BORROWINGS	FEDERAL HOME LOAN BANK ADVANCES, FEDERAL RESERVE BANK BORROWINGS AND OTHER BORROWINGS Federal Home Loan Bank (FHLB) Advances The following table presents advances from the FHLB as of the dates indicated: ($ in thousands) September 30, December 31, Fixed rate: Outstanding balance (1) $ 811,000 $ 711,000 Interest rates ranging from 0.64 % 0.64 % Interest rates ranging to 3.70 % 3.70 % Weighted average interest rate 3.04 % 2.97 % Variable rate: Outstanding balance $ — $ 20,000 Weighted average interest rate — % 4.59 % (1) Excludes $2.7 million and $3.7 million of unamortized debt issuance costs at September 30, 2023 and December 31, 2022. As of September 30, 2023, FHLB advances consisted of $611 million in term advances with a weighted average life of 2.75 years and a weighted average interest rate of 2.91% and $200 million in putable advances with a weighted average life of 4.25 years and a weighted average interest rate of 3.44%. Term advances are payable at maturity date, and advances paid early are subject to a prepayment penalty. The putable advances can be called quarterly until maturity at the option of the FHLB beginning in December 2023. FHLB advances are collateralized by a blanket lien on all real estate loans. As of September 30, 2023, our secured borrowing capacity with the FHLB totaled $2.42 billion, of which the Bank was eligible to borrow an additional $1.19 billion based on qualifying loans with an aggregate unpaid principal balance of $3.63 billion as of that date. The Bank’s investment in the capital stock of the FHLB of San Francisco totaled $25.7 million and $22.6 million at September 30, 2023 and December 31, 2022. Federal Reserve Bank (FRB) Borrowings At September 30, 2023, the Bank had borrowing capacity with the Federal Reserve Bank of San Francisco (the “Federal Reserve”) of $1.38 billion, including the secured borrowing capacity through the FRB Discount Window, Borrower-in-Custody (“BIC”), and Bank Term Funding (“BTFP”) programs. Borrowings under the BIC program are overnight advances with interest chargeable at the primary credit borrowing rate. Borrowings under the BTFP, which was established in March 2023, are for periods up to one year in length, with interest rates based on the one-year overnight index swap (“OIS”) rate plus a spread of 10 basis points. BTFP borrowings are collateralized by eligible investment securities valued at par and provide an additional source of liquidity leveraging high-quality securities. At September 30, 2023, the Bank pledged certain qualifying loans with an unpaid principal balance of $1.28 billion and securities with a carrying value of $505.8 million as collateral for the FRB credit programs. Borrowings from the Federal Reserve through the FRB Discount Window and BIC programs were $200.0 million and zero at September 30, 2023 and December 31, 2022. There were no borrowings under the BTFP at September 30, 2023. The Bank’s investment in capital stock of the Federal Reserve totaled $34.6 million and $34.5 million at September 30, 2023 and December 31, 2022. Other Borrowings The Bank maintains available unsecured federal funds lines with six correspondent banks totaling $290.0 million and $210.0 million, with no outstanding borrowings at September 30, 2023 and December 31, 2022. We mainly utilize FHLB and FRB borrowings and the unsecured federal funds lines as our secondary source of funds. From time to time, the Bank may also utilize alternate sources of funds, including unsecured overnight borrowings through the American Financial Exchange platform ("AFX") and other financial institutions. The availability of such unsecured borrowings fluctuates regularly and are subject to the counterparties discretion. Other borrowings from these alternate sources totaled $185.8 million and zero at September 30, 2023 and December 31, 2022. In December 2022, the holding company renewed its $50.0 million revolving line of credit with another financial institution. The line of credit matures on December 18, 2023 and is subject to certain operational and financial covenants. There were no borrowings under this line of credit at September 30, 2023 and December 31, 2022, and we were in compliance with all covenants. The Bank also maintained repurchase agreements and had no outstanding securities sold under these agreements at September 30, 2023 and December 31, 2022. Availabilities and terms on repurchase agreements are subject to the counterparties’ discretion and the pledging of additional investment securities.

LONG-TERM DEBT

LONG-TERM DEBT	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT The following table presents our long-term debt as of the dates indicated: September 30, 2023 December 31, 2022 ($ in thousands) Interest Maturity Par Unamortized Debt Issuance Cost and Discount Par Unamortized Debt Issuance Cost and Discount Senior notes (1) 5.25% 4/15/2025 $ 174,000 $ (520) $ 175,000 $ (722) Subordinated notes (2) 4.375% 10/30/2030 85,000 (1,728) 85,000 (1,899) PMB Statutory Trust III, junior subordinated debentures SOFR + 3.40% 9/26/2032 7,217 — 7,217 — PMB Capital Trust III, junior subordinated debentures SOFR + 2.00% 10/8/2034 10,310 — 10,310 — Total long-term debt, net $ 276,527 $ (2,248) $ 277,527 $ (2,621) (1) The Senior notes bear interest at a fixed rate of 5.25% per annum, payable semi-annually in arrears. (2) The Subordinated notes bear interest at an initial fixed rate of 4.375% per annum, payable semi-annually in arrears. From and including October 30, 2025 to, but excluding, the maturity date or the date of earlier redemption, the Subordinated Notes bear interest at a floating rate per annum equal to a benchmark rate, which is expected to be 3-Month Term SOFR, plus a spread of 419.5 basis points, payable quarterly in arrears. During the three months ended September 30, 2023, there were no repurchases of senior notes. During the nine months ended September 30, 2023, we repurchased senior notes with an outstanding balance of $1.0 million at a discount and recognized an $80 thousand gain. There were no repurchases of senior notes during the three and nine months ended September 30, 2022.

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2023
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES For the three and nine months ended September 30, 2023, income tax expense was $16.3 million and $30.4 million, resulting in an effective tax rate of 27.6% and 27.4%. For the three and nine months ended September 30, 2022, income tax expense was $9.9 million and $38.9 million, resulting in an effective tax rate of 29.1% and 28.1%. The effective tax rate for the three and nine months ended September 30, 2023 and 2022, differs from the combined federal and state statutory rate for the consolidated company of 28.9% due primarily to various permanent tax differences, tax credits and other discrete tax items that impact our effective tax rate. We account for income taxes by recognizing deferred tax assets and liabilities based upon temporary differences between the amounts for financial reporting purposes and the tax basis of our 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 considering the four possible sources of future taxable income, such as future reversal of existing taxable temporary differences, future taxable income exclusive of reversing temporary differences and carryforwards, taxable income in prior carryback year(s), and future tax planning strategies. Based on this analysis, management determined, 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 $51.5 million and $50.5 million at September 30, 2023 and December 31, 2022. ASC 740-10-25 relates to the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements. ASC 740-10-25 prescribes a threshold and a measurement process for recognizing in the financial statements a tax position taken or expected to be taken in a tax return and also provides guidance on de-recognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. We had unrecognized tax benefits of $0.8 million at both September 30, 2023 and December 31, 2022. We do not believe that the unrecognized tax benefits will change materially in the next twelve months. As of September 30, 2023, the total unrecognized tax benefit that, if recognized, would impact the effective tax rate was $0.6 million. At September 30, 2023 and December 31, 2022, we had no accrued interest or penalties. In the event we are 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. We are subject to U.S. federal income tax as well as income tax in multiple state jurisdictions. We are no longer subject to examination by U.S. federal taxing authorities for years before 2019. The statute of limitations for the assessment of California franchise taxes has expired for tax years before 2018 (other state income and franchise tax statutes of limitations vary by state).

DERIVATIVE INSTRUMENTS

DERIVATIVE INSTRUMENTS	9 Months Ended
	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE INSTRUMENTS	DERIVATIVE INSTRUMENTS We use derivative instruments and other risk management techniques to reduce our exposure to adverse fluctuations in interest rates and foreign currency exchange rates in accordance with our risk management policies and for certain loan clients to allow them to hedge the risk of rising interest rates on their variable rate loans. The Company recognizes all derivatives on the consolidated balance sheet at fair value in derivative assets and accrued expenses and other liabilities. On the date we enter into a derivative contract, the derivative is designated as either a fair value hedge, cash flow hedge, or a hedge designation is not made as it is a customer-related transaction. When a derivative is designated as a fair value hedge or cash flow hedge, the Company performs an assessment at inception, and, at least quarterly thereafter, to determine the effectiveness of the derivative in offsetting changes in the fair value or cash flows of the hedged items. Cash flow hedge In March 2023, the Company entered into pay-fixed, receive-variable interest-rate swap contracts classified as cash flow hedges with notional amounts aggregating $300.0 million, five year terms and varying maturity dates through 2028. These swap contracts were entered into with institutional counterparties to hedge against variability in cash flows attributable to interest rate risk related to changes in the SOFR benchmark interest rate on a portion of the Company’s variable rate deposits and borrowings. The cash flow hedges were deemed highly effective at inception and quarterly thereafter. The portion of changes in the fair value of the cash flow hedges considered highly effective are recognized in other comprehensive income (loss) until the related cash flows from the hedged item are recognized in earnings. At September 30, 2023, the fair value of the cash flow hedges represent an asset of $5.9 million, of which $4.2 million (net of tax) was included in AOCI on the consolidated statements of financial condition. As of September 30, 2023, we estimated that $4.1 million of unrealized net pre-tax gains in AOCI is expected to be reclassified into earnings within the next twelve months. Interest Rate Swaptions and Contingent Forward Loan Sale Agreement not designated for hedge accounting Concurrently with the announcement of the proposed merger with PacWest, we entered into an aggregate of $3.1 billion in interest rate swaptions to hedge the interest rate risk associated with various assets on our balance sheet in anticipation of the sale of such assets in connection with the proposed merger with PacWest and a contingent forward loan sale agreement on $1.8 billion of the SFR loan portfolio. Interest Rate Swaptions. We executed interest rate swaptions, with an aggregate notional amount of $3.1 billion, where, if executed, we would pay a fixed rate and receive a floating rate based on 2-year, 7-year and 10-year SOFR. In connection with executing these agreements, we paid $15.7 million. During the three and nine months ended September 30, 2023, changes in the fair value of the interest rate swaptions resulted in gains of $11.3 million and were included in noninterest income on the consolidated statements of operations. Contingent Forward Loan Sale Agreement. Under the terms of the contingent forward loan sale agreement, we have committed to selling $1.8 billion of first lien SFR loans at a price of 87.25% plus or minus certain adjustments for accrued interest and payoffs, contingent upon receipt of approval for the closing of the bank merger. Should the merger not close for any reason, we intend to continue to hold the SFR loan portfolio for investment. The contingent forward loan sale agreement contains customary terms and conditions associated with a whole loan sale and we expect to close the forward loan sale shortly after closing of the merger. Pursuant to the terms of the agreement, the purchase price is subject to adjustment reflecting at-market fees based on the additional time for settlement from November 8, 2023. During the three and nine months ended September 30, 2023, changes in the estimated fair value of the contingent forward loan sale agreement were gains of $34.9 million and were included in noninterest income on the consolidated statements of operations. Other interest rate swaps and foreign exchange contracts not designated for hedge accounting During the three and nine months ended September 30, 2023, changes in fair value of other interest rate swaps on loans and foreign exchange contracts were gains of $19 thousand and $7 thousand and were included in noninterest income on the consolidated statements of operations. During the three and nine months ended September 30, 2022, changes in fair value of other interest rate swaps on loans and foreign exchange contracts were gains of $38 thousand and $0.2 million. The following table presents the notional amount and fair value of our derivative instruments as of the dates indicated. September 30, 2023 December 31, 2022 ($ in thousands) Notional Amount Fair Notional Amount Fair Derivative assets: Contingent forward loan sale agreement $ 1,803,869 $ 34,902 $ — $ — Interest rate swaptions 3,093,000 27,003 — — Cash flow hedges 300,000 5,874 — — Interest rate swaps on loans 32,166 2,708 33,694 2,134 Foreign exchange contracts 4,597 138 5,885 158 Total $ 5,233,632 $ 70,625 $ 39,579 $ 2,292 Derivative liabilities: Interest rate swaps on loans $ 32,166 $ 2,669 $ 33,694 $ 2,107 Foreign exchange contracts 4,597 130 5,885 144 Total $ 36,763 $ 2,799 $ 39,579 $ 2,251

EMPLOYEE STOCK COMPENSATION

EMPLOYEE STOCK COMPENSATION	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
EMPLOYEE STOCK COMPENSATION	EMPLOYEE STOCK COMPENSATION On May 31, 2018, our stockholders approved the Company’s 2018 Omnibus Stock Incentive Plan (“2018 Omnibus Plan”). The 2018 Omnibus Plan provides that the maximum number of shares available for awards is 4,417,882. As of September 30, 2023, there were 1,904,116 shares available for future awards. Stock-based Compensation Expense The following table presents total stock-based compensation expense and the related tax benefits for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Restricted stock awards and units $ 1,581 $ 1,715 $ 4,762 $ 4,482 Related tax benefits $ 457 $ 495 $ 1,377 $ 1,295 Total stock-based compensation expense represents the cost of service-based restricted stock units, performance-based restricted stock units and performance-based restricted stock units with market conditions. At September 30, 2023, unrecognized compensation expense totaled $11.6 million and will be recognized over a weighted average remaining period of 2.4 years. Restricted Stock Awards and Restricted Stock Units We have granted restricted stock awards and restricted stock units to certain employees, officers, and directors. The restricted stock awards and units are measured based on grant-date fair value, which generally reflect the closing price of our stock on the date of grant. For awards containing market conditions, we engage a third party to perform a valuation analysis using a Monte Carlo simulation model to determine grant-date fair value. The restricted stock awards and units fully vest after a specified period (generally ranging from one The following table presents unvested restricted stock awards and restricted stock units activity for the three and nine months ended September 30, 2023: Three Months Ended Nine Months Ended Number of Shares Weighted Average Grant Date Fair Value Per Share Number of Shares Weighted Outstanding at beginning of period 1,350,210 $ 14.61 1,403,245 $ 14.68 Granted (1) 41,015 $ 14.02 415,215 $ 15.87 Vested (2) (6,624) $ 14.10 (289,701) $ 17.39 Forfeited (3) (44,092) $ 17.74 (188,250) $ 13.68 Outstanding at end of period (4) 1,340,509 $ 14.60 1,340,509 $ 14.60 (1) There were zero and 79,784 performance-based shares/units included in shares granted for the three and nine months ended September 30, 2023. (2) There were zero and 66,699 performance-based shares/units included in vested shares for the three and nine months ended September 30, 2023. (3) The number of forfeited shares included aggregate performance-based shares/units of 26,076 and 150,958 for the three and nine months ended September 30, 2023 . (4) Includes 780,514 performance-based shares/units at September 30, 2023. As a result of the pending merger with PacWest, the CNG Committee approved the cancellation of performance-based restricted stock unit (“PSU”) awards granted with stock price targets, subject to the closing of the merger with PacWest. As of September 30, 2023, we have 590,162 shares of stock-price based PSU awards subject to cancellation upon closing of the merger. The merger agreement also provides that, at the merger closing date, outstanding PSU awards, other than stock-price based PSUs, will vest and be settled within five business days from the merger close date, with performance deemed achieved at the target level of performance. As of September 30, 2023, we have 190,352 shares of PSU awards granted with performance conditions other than stock-price subject to immediate vesting upon closing of the merger. The expense associated with the immediate vesting of these awards will be recognized at the legal close of the merger. Additionally, any restricted stock unit awards granted to a non-employee member of the Company’s Board of Directors will vest and will be settled within five business days after the merger closing date. All other time-based restricted stock unit awards outstanding immediately prior to the merger close date will remain outstanding and subject to the same terms and conditions prior to the merger. Stock Options We have issued stock options to certain employees, officers, and directors. Stock options are issued at the closing market price immediately before the grant date and generally have a three seven market value of the shares acquired at the time of exercise less the exercise price. There were no stock options granted and no unvested stock options as of September 30, 2023 and December 31, 2022. The following tables represents stock option activity for the three and nine months ended September 30, 2023: Three Months Ended September 30, 2023 Nine Months Ended September 30, 2023 ($ in thousands, except per share data) Number Weighted-Average Exercise Price Per Share Number Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregate Intrinsic Value Outstanding at beginning of period 14,904 $ 13.05 14,904 $ 13.05 Exercised (1,836) $ 10.90 (1,836) $ 10.90 Outstanding at end of period 13,068 $ 13.35 13,068 $ 13.35 1.6 years $ 3 Exercisable at end of period 13,068 $ 13.35 13,068 $ 13.35 1.6 years $ 3

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS’ EQUITY Preferred Stock We are authorized to issue 50,000,000 shares of preferred stock with par value of $0.01 per share. Preferred shares outstanding rank senior to common shares both as to dividends and liquidation preference but generally have no voting rights. All of our shares of preferred stock had a $1,000 per share liquidation preference and there were no preferred shares outstanding since March 2022. The following table summarizes redemptions and repurchases of these depositary shares for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Series E Preferred Stock: Depositary shares repurchased — — — 3,948,080 Preferred Stock retired (shares) — — — 98,702 Consideration paid $ — $ — $ — $ 98,703 Carrying value — — — 94,956 Impact of preferred stock redemption $ — $ — $ — $ 3,747 During the first quarter of 2022, we redeemed all of our outstanding Series E Depositary Shares, resulting in an after-tax charge of $3.7 million in the accompanying consolidated statements of operations. Common Share Repurchase Program On February 13, 2023, we announced our Board of Directors authorized the repurchase of up to $35 million of our common stock. The repurchase authorization expires in February 2024. Purchases may be made in open-market transactions, in block transactions on or off an exchange, in privately negotiated transactions or by other means as determined by our management and in accordance with the regulations of the SEC. The timing of purchases and the number of shares repurchased under the program will depend on a variety of factors including price, trading volume, corporate and regulatory requirements and market conditions. There were no shares repurchased under the program during the three months ended September 30, 2023. During the nine months ended September 30, 2023, there were 1,759,491 shares of common stock repurchased under the program at a weighted average price of $12.02. As of September 30, 2023, the Company had $13.9 million remaining under the current stock repurchase authorization. Change in Accumulated Other Comprehensive (Loss) Income ("AOCI") Our AOCI includes unrealized gain (loss) on AFS securities and cash flow hedges. Changes to AOCI are presented net of the tax effect as a component of stockholders’ equity. For AFS securities, reclassifications from AOCI occur when a security is sold, called or matures and are recorded on the consolidated statements of operations either as a gain or loss. During the first quarter of 2022, we transferred certain AFS securities to HTM. The unrealized loss on such securities at the time of transfer continues to be reported in AOCI and is amortized over the remaining life of the security as a yield adjustment. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges are recorded in AOCI and are subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. If a cash flow hedge is terminated or is no longer deemed highly effective, the hedge accounting is ceased and any gain or loss included in AOCI is reclassified into earnings. The following table presents changes to AOCI for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Balance at beginning of period $ (49,758) $ (34,059) $ (40,597) $ 7,743 Unrealized gain (loss) on securities available-for-sale: Unrealized gain (loss) arising during the period 2,205 (19,289) (10,652) (78,392) Reclassification adjustment from other comprehensive income — — — (16) Total unrealized gain (loss) on securities available-for-sale 2,205 (19,289) (10,652) (78,408) Amortization of unrealized loss of available-for-sale securities transferred to held-to-maturity 254 275 759 608 Unrealized gain on cash flow hedges: Unrealized gain arising during the period 6,328 — 5,874 — Tax effect of current period changes (2,482) 5,494 1,163 22,478 Total changes, net of taxes 6,305 (13,520) (2,856) (55,322) Balance at end of period $ (43,453) $ (47,579) $ (43,453) $ (47,579)

VARIABLE INTEREST ENTITIES

VARIABLE INTEREST ENTITIES	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
VARIABLE INTEREST ENTITIES	VARIABLE INTEREST ENTITIES We hold ownership interests in alternative energy partnerships, qualified affordable housing partnerships and other CRA investments and have a variable interest in a multifamily securitization trust. We evaluate our interests in these entities to determine whether they meet the definition of a variable interest entity ("VIE") and whether we are required to consolidate these entities. A VIE is consolidated by its primary beneficiary, which is the party that has both (i) the power to direct the activities that most significantly impact the economic performance of the VIE and (ii) a variable interest that could potentially be significant to the VIE. To determine whether or not a variable interest we hold could potentially be significant to the VIE, we consider both qualitative and quantitative factors regarding the nature, size, and form of our involvement with the VIE. We have determined that our interests in these entities meet the definition of variable interests; however none of the VIE’s meet the criteria for consolidation. Unconsolidated VIEs Alternative Energy Partnerships We invested in certain alternative energy partnerships (limited liability companies) formed to provide sustainable energy projects that are designed to generate a return primarily through the realization of federal tax credits (energy tax credits). These entities were formed to invest in newly established residential and commercial solar leases and power purchase agreements. As a result of our investments, we have the right to certain investment tax credits and tax depreciation benefits (recognized on the flow through income statement method in accordance with ASC 740), and to a lesser extent, cash flows generated from the installed solar systems leased to individual consumers for a fixed period of time. While our interest in the alternative energy partnerships meets the definition of a VIE in accordance with ASC 810, we have determined that we are not the primary beneficiary because we do not have the power to direct the activities that most significantly impact the economic performance of the entities including operational and credit risk management activities. As we are not the primary beneficiary, we did not consolidate the entities. We use the HLBV method to account for our investments in alternative energy partnerships as an equity investment. Under the HLBV method, an equity method investor determines its share of an investee’s net earnings by comparing its claim on the investee’s book value at the beginning and end of the period, assuming the investee were to liquidate all assets at their U.S. GAAP amounts and distribute the resulting cash to creditors and investors under their respective priorities. The difference between the calculated liquidation distribution amounts at the beginning and the end of the reporting period, after adjusting for capital contributions and distributions, is our share of the earnings or losses from the equity investment for the period. To account for the tax credits earned on investments in alternative energy partnerships, we use the flow-through income statement method. Under this method, the tax credits are recognized as a reduction to income tax expense and the initial book-tax differences in the basis of the investments are recognized as additional tax expense in the year they are earned. Investments in alternative energy partnerships totaled $18.8 million and $21.4 million at September 30, 2023 and December 31, 2022. The following table presents information regarding activity in our alternative energy partnerships for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Return of capital $ 342 $ 626 $ 1,059 $ 1,782 Gain (loss) on investments in alternative energy partnerships 34 (504) (1,548) (1,705) Tax expense (benefit) recognized from HLBV application 10 (146) (448) (493) There were no fundings of alternative energy partnerships or related income tax credits recognized for the three and nine months ended September 30, 2023 and 2022. The following table represents the carrying value of the associated unconsolidated assets and liabilities and the associated maximum loss exposure for alternative energy partnerships as of the dates indicated: ($ in thousands) September 30, December 31, Cash $ 2,902 $ 4,110 Equipment, net of depreciation 230,987 237,641 Other assets 10,590 9,838 Total unconsolidated assets $ 244,479 $ 251,589 Total unconsolidated liabilities $ 11,451 $ 11,679 Maximum loss exposure $ 18,803 $ 21,410 The maximum loss exposure that would be absorbed by us in the event that all of the assets in alternative energy partnerships are deemed worthless is $18.8 million, which is our recorded investment amount at September 30, 2023. We believe that the loss exposure on our investments is reduced considering our return on our investment is provided not only by the cash flows of the underlying client leases and power purchase agreements, but also through the tax benefits, including the federal tax credit carryover that resulted from the investments. In addition, our exposure is further limited as the arrangements include a transition manager to support any transition of the solar company sponsor, whose role includes that of the servicer and operation and maintenance provider, in the event the sponsor would be required to be removed from its responsibilities (e.g., bankruptcy, breach of contract, etc.). Qualified Affordable Housing Partnerships - Low Income Housing Tax Credits We invest in limited partnerships that operate qualified affordable housing projects that qualify for LIHTC. The returns on these investments are generated primarily through allocated federal tax credits and other tax benefits. In addition, LIHTC investments contribute to our compliance with the Community Reinvestment Act. These limited partnerships are considered to be VIEs, because either (i) they do not have sufficient equity investment at risk or (ii) the limited partners with equity at risk do not have substantive kick-out rights through voting rights or substantive participating rights over the general partner. As a limited partner, we are not the primary beneficiary because the general partner has the ability to direct the activities of the VIEs that most significantly impact their economic performance. As a result, we do not consolidate these partnerships. The following table presents information regarding balances in LIHTC investments for the periods indicated: ($ in thousands) September 30, December 31, Ending balance (1) $ 41,138 $ 45,726 Aggregate funding commitment 72,767 72,967 Total amount funded 57,417 55,487 Unfunded commitment 15,350 17,480 Maximum loss exposure 41,138 45,726 (1) Included in other assets in the accompanying Consolidated Statements of Financial Condition. The following table presents information regarding activity in our LIHTC investments for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Fundings $ 127 $ 1,128 $ 1,930 $ 3,152 Proportional amortization recognized 1,512 1,350 4,450 3,727 Income tax credits recognized 1,673 1,298 5,048 3,834 Other CRA Investments We invest in other CRA investments that are accounted for using the equity method of accounting or the measurement alternative to fair value for equity investments without a readily determinable fair value. Other CRA investments totaled $88.6 million and $85.0 million at September 30, 2023 and December 31, 2022. CRA investments that are accounted for under the equity method consist primarily of investments in small business investment companies (“SBICs”) and limited partnerships which provide affordable housing where our ownership percentage exceeds 3%. Under the equity method of accounting, we record our proportionate share of the profits or losses of the investment entity as an adjustment to the carrying value of the investment and as a component of noninterest income. Equity investments that do not meet the criteria to be accounted for under the equity method and do not have a readily determinable fair value are accounted for at cost under the measurement alternative to fair value with adjustments for impairment and observable price changes as applicable. These investments consist primarily of investments in limited partnerships which provide affordable housing where our partnership percentage is less than 3% and other qualifying investments such as Community Development Financial Institutions (“CDFI”) stock. Multifamily Securitization During the third quarter of 2019, we transferred $573.5 million of multifamily loans, through a two-step process, to a third-party depositor which placed the multifamily loans into a third-party trust (a VIE) that issued structured pass-through certificates to investors. The transfer of these loans was accounted for as a sale for financial reporting purposes, in accordance with ASC 860. We determined that we are not the primary beneficiary of this VIE as we do not have the power to direct the activities that will have the most significant economic impact on the entity, therefore we do not consolidate the securitization trust. Our continuing involvement in this securitization is limited to customary obligations associated with the securitization of loans, including the obligation to cure, repurchase, or substitute loans in the event of a material breach in representations. Additionally, we have the obligation to guarantee credit losses up to 12% of the aggregate unpaid principal balances at cut-off date of the securitization. This obligation is supported by a $68.8 million letter of credit between Freddie Mac and the FHLB. The maximum loss exposure that would be absorbed by us in the event that all of the assets in the securitization trust are deemed worthless is $68.8 million, which represents the aforementioned obligation to guarantee credit losses up to 12%. We believe that the loss exposure on the multifamily securitization is reduced by both loan-to-value ratios of the underlying collateral balances and the overcollateralization that exists within the securitization trust. At September 30, 2023, the remaining unpaid principal balance on the securitization totaled $82.1 million, and we have a $1.2 million repurchase reserve related to this VIE. Capital Trusts - Trust Preferred Securities In connection with our acquisition of PMB, we acquired investments in two grantor trusts. These grantor trusts were originally formed to sell and issue trust preferred securities to institutional investors (Refer to Note 7 - Long-term Debt ). We are not the primary beneficiary, and consequently, these grantor trusts are not consolidated in the consolidated financial statements. At September 30, 2023 and December 31, 2022, our investment in these grantor trusts, which is included in other assets in the consolidated statements of financial condition, totaled $0.5 million.

EARNINGS PER COMMON SHARE

EARNINGS PER COMMON SHARE	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
EARNINGS PER COMMON SHARE	EARNINGS PER COMMON SHARE The following table presents computations of basic and diluted earnings per common share (“EPS”) for the three and nine months ended September 30, 2023: Three Months Ended September 30, 2023 Nine Months Ended ($ in thousands except per share data) Common Stock Class B Common Stock Class B Common Stock Net income $ 42,220 $ 354 $ 80,068 $ 663 Weighted average common shares outstanding 56,957,053 477,321 57,659,924 477,321 Dilutive effects of restricted shares/units 87,109 — 92,269 — Dilutive effects of stock options 353 — 623 — Average shares and dilutive common shares 57,044,515 477,321 57,752,816 477,321 Basic earnings per common share $ 0.74 $ 0.74 $ 1.39 $ 1.39 Diluted earnings per common share $ 0.74 $ 0.74 $ 1.39 $ 1.39 For the three and nine months ended September 30, 2023, there were 500,943 and 484,850 anti-dilutive restricted shares/units and 11,232 and 11,232 anti-dilutive stock options that were excluded from computing diluted earnings per common share. The following table presents computations of basic and diluted EPS for the three and nine months ended September 30, 2022: Three Months Ended September 30, 2022 Nine Months Ended September 30, 2022 ($ in thousands except per share data) Common Stock Class B Common Stock Common Stock Class B Common Stock Net income $ 24,004 $ 192 $ 98,646 $ 774 Less: preferred stock dividends — — (1,409) (11) Less: preferred stock redemption — — (3,718) (29) Net income allocated to common stockholders $ 24,004 $ 192 $ 93,519 $ 734 Weighted average common shares outstanding 59,567,082 477,321 60,846,798 477,321 Dilutive effects of restricted shares/units 444,321 — 331,389 — Dilutive effects of stock options 3,736 — 4,392 — Average shares and dilutive common shares 60,015,139 477,321 61,182,579 477,321 Basic earnings per common share $ 0.40 $ 0.40 $ 1.54 $ 1.54 Diluted earnings per common share $ 0.40 $ 0.40 $ 1.53 $ 1.54 For the three and nine months ended September 30, 2022, there were 157,049 and 3,391 anti-dilutive restricted shares/units and no anti-dilutive stock options that were excluded from computing diluted earnings per common share.

LOAN COMMITMENTS AND OTHER RELA

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES	LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES Some financial instruments, such as unfunded 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 prior to their 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 originating loans, including obtaining collateral at exercise of the commitment. The following table presents the contractual amount of financial instruments with off-balance-sheet risk as of the periods indicated: September 30, 2023 December 31, 2022 ($ in thousands) Fixed Rate Variable Rate Fixed Rate Variable Rate Commitments to extend credit $ 65,639 $ 164,455 $ 50,193 $ 180,696 Unused lines of credit 46,747 1,365,588 8,392 1,505,122 Letters of credit 1,673 8,886 2,461 7,016 Other Commitments At September 30, 2023, we had unfunded commitments of $15.4 million, $7.4 million, and $20.5 million for LIHTC investments, SBIC investments, and other investments. At December 31, 2022, we had unfunded commitments of $17.5 million, $8.6 million, and $9.8 million for LIHTC investments, SBIC investments, and other investments. Unfunded commitments for LIHTC investments were included in accrued expenses and other liabilities on the consolidated balance sheet. Contingent Forward Loan Sale Agreement

OTHER ASSETS AND OTHER LIABILIT

OTHER ASSETS AND OTHER LIABILITIES	9 Months Ended
	Sep. 30, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
OTHER ASSETS AND OTHER LIABILITIES	OTHER ASSETS AND OTHER LIABILITIES The following table presents the components of other assets as of the dates indicated: ($ in thousands) September 30, December 31, Accrued interest receivable $ 39,494 $ 37,942 Prepaid expenses 10,934 8,068 Operating lease right-of-use assets 23,104 28,780 Servicing assets 20,443 22,484 Other real estate owned 882 — Income taxes receivable — 7,679 Investments: CRA and other equity investments (1) 94,273 90,295 LIHTC investments (1) 41,138 45,726 Alternative energy partnerships (1) 18,803 21,410 Other assets 15,077 13,513 Total other assets $ 264,148 $ 275,897 (1) See Note 12 - Variable Interest Entities regarding alternative energy partnerships, LIHTC and other CRA investments The following table presents the components of accrued expenses and other liabilities as of the dates indicated: ($ in thousands) September 30, December 31, Accrued interest payable $ 21,187 $ 7,004 Accounts payable and accrued expenses 41,741 37,560 Income taxes payable 19,062 — Derivative liabilities (1) 2,799 2,251 Lease liability 25,654 33,122 Commitments to fund LIHTC investments (2) 15,350 17,480 Reserve for unfunded noncancellable loan commitments 4,005 5,305 Reserve for loss on repurchased loans 1,971 2,989 Other liabilities 4,579 8,512 Total accrued expenses and other liabilities $ 136,348 $ 114,223 (1) See Note 9 - Derivative Instruments for information regarding derivative instruments (2) See Note 14 - Loan Commitments and Other Related Activities regarding commitments to fund LIHTC

REVENUE RECOGNITION

REVENUE RECOGNITION	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
REVENUE RECOGNITION	REVENUE RECOGNITION The following table presents noninterest income, segregated by revenue streams, in-scope and out-of-scope of Topic 606 - Revenue From Contracts With Customers , for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Noninterest income In scope of Topic 606 Deposit service fees $ 1,508 $ 1,486 $ 4,148 $ 4,767 Debit card fees 417 472 1,217 1,467 Other 214 240 913 536 Noninterest income (in-scope of Topic 606) 2,139 2,198 6,278 6,770 Noninterest income (out-of-scope of Topic 606) 48,639 3,483 58,383 12,007 Total noninterest income $ 50,778 $ 5,681 $ 64,661 $ 18,777 We do not typically enter into long-term revenue contracts with clients and as of September 30, 2023 and December 31, 2022, we did not have any significant contract balances within the scope of Topic 606 and we did not capitalize any revenue contract acquisition costs. Sale-leaseback Transactions In January 2022, we completed a sale-leaseback transaction for $2.4 million and recognized a gain of $0.8 million. Gains related to sale-leaseback are included in other income in the accompanying consolidated statements of operations.

RELATED-PARTY TRANSACTIONS

RELATED-PARTY TRANSACTIONS	9 Months Ended
	Sep. 30, 2023
Related Party Transactions [Abstract]
RELATED-PARTY TRANSACTIONS	RELATED-PARTY TRANSACTIONS Certain of our executive officers and directors, and their related interests, are customers of, or have had transactions with the Bank in the ordinary course of business, including deposits, loans and other financial services related transactions. From time to time, the Bank may make loans to executive officers and directors, and their related interests, in the ordinary course of business and on substantially the same terms and conditions, including interest rates and collateral, as those of comparable transactions with non-insiders prevailing at the time, in accordance with the Bank’s underwriting guidelines, and do not involve more than the normal risk of collectability or present other unfavorable features. As of September 30, 2023, no related party loans were categorized as nonaccrual, past due, restructured or potential problem loans. Transactions with Related Parties The Company and the Bank have engaged in transactions described below with the Company’s current or former directors, executive officers, and beneficial owners of more than five percent of the outstanding shares of the Company’s voting common stock and certain persons related to them. As previously disclosed, the Company’s Board of Directors has authorized and directed the Company to provide indemnification, advancement and/or reimbursement for the costs of separate independent counsel retained by any then-current officer or director, in their individual capacity, with respect to matters related to (i) an investigation by the Special Committee of the Company’s Board of Directors in late 2016, (ii) a formal order of investigation issued by the SEC on January 4, 2017 (since resolved), and (iii) any civil or administrative proceedings against the Company as well as officers and directors currently or previously associated with the Company (collectively, the “Indemnified Matters”). Indemnification costs were paid or reimbursed by the Company or its insurance carriers o n behalf of certain current directors in connection with the Indemnified Matters, in an aggregate amount less than $120 thousand and $159 thousand for each of the three and nine months ended September 30, 2023. Indemnification costs were paid or reimbursed by the Company or its insurance carriers o n behalf of certain current directors in connection with the Indemnified Matters, in an aggregate amount less than $120 thousand and $244 thousand for each of the three and nine months ended September 30, 2022 .

LITIGATION

LITIGATION	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
LITIGATION	LITIGATION From time to time, we are involved as plaintiff or defendant in various legal actions arising in the normal course of business. In accordance with applicable accounting guidance, we establish an accrued liability when those matters present loss contingencies that are both probable and estimable. While the ultimate liability with respect to legal actions cannot be determined at this time, we believe that damages, if any, and other amounts relating to pending matters are not likely to be material to the consolidated financial statements.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	9 Months Ended
	Sep. 30, 2023
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS We have evaluated events from the date of the consolidated financial statements on September 30, 2023 through the issuance of these consolidated financial statements included in this Quarterly Report on Form 10-Q. On October 19, 2023, the Board of Governors of the Federal Reserve System granted its approval of the merger. In addition, on October 5, 2023, the California Department of Financial Protection and Innovation granted its approval of the bank merger. No further regulatory approvals are required to complete the proposed transaction. Banc of California and PacWest will each hold a special meeting of its respective stockholders in connection with the transaction on November 22, 2023. The consummation of the proposed transaction is expected to close on or about November 30, 2023, subject to the satisfaction of the remaining closing conditions set forth in the merger agreement, including receipt of the requisite stockholder approvals, and the concurrent closing of a $400 million equity capital raise. Except as noted, there have been no other subsequent events that occurred during such period that would require disclosure in this report or would be required to be recognized in the consolidated financial statements as of September 30, 2023.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation: The accompanying unaudited interim consolidated financial statements have been prepared pursuant to Article 10 of SEC Regulation S-X and other SEC rules and regulations for reporting on the Quarterly Report on Form 10-Q. Accordingly, certain disclosures required by U.S. generally accepted accounting principles (“GAAP”) are not included herein. These interim statements should be read in conjunction with the consolidated financial statements and notes included in the Annual Report on Form 10-K for the year ended December 31, 2022 filed by us with the SEC.
Reclassification	Certain prior period amounts have been reclassified to conform to current period presentation. These reclassifications are immaterial and have no effect on net income, comprehensive income (loss), total assets or total shareholders’ equity previously reported.In the opinion of management of the Company, the accompanying unaudited interim consolidated financial statements reflect all of the adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the consolidated financial condition and consolidated results of operations as of the dates and for the periods presented.
Principles of Consolidation	Principles of Consolidation: The accompanying unaudited consolidated financial statements include the accounts of the Company and its consolidated subsidiaries as of September 30, 2023 and December 31, 2022 and for the three and nine months ended September 30, 2023 and September 30, 2022. Significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, all references to the Company include its then wholly-owned subsidiaries.
Significant Accounting Policies, and Recent Accounting Guidance	Significant Accounting Policies: The accounting and reporting policies of the Company are based upon GAAP and conform to predominant practices within the banking industry. We have not made any changes in our significant accounting policies from those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC, except for those described below, which reflect an update to our accounting policy on derivative instruments and the impact of the adoption of ASU 2022-02: Recently Adopted Accounting Guidance: In March 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2022-02, Financial Instruments—Credit Losses (Topic 326) Troubled Debt Restructurings and Vintage Disclosures , which addresses areas identified by the FASB as part of its post-implementation review of the credit losses standard (“ASU 2016-13”) that introduced the current expected credit losses (“CECL”) model. The amendments eliminate the accounting guidance for TDRs by creditors that have adopted the CECL model and enhances the disclosure requirements for loan refinancings and restructurings made with borrowers experiencing financial difficulty. In addition, the amendments require a public business entity to disclose current-period gross write-offs for financing receivables by year of origination in the vintage disclosures. ASU 2022-02 is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. We adopted ASU 2022-02 on January 1, 2023 and the impact of adoption did not have a material effect on our consolidated financial statements. Recently Issued Accounting Guidance Not Yet Adopted : In March 2023, the FASB issued ASU 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method (a consensus of the Emerging Issues Task Force) (“ASU 2023-02”) , which permits reporting entities to
Derivative Instruments	Derivative Instruments: We record our derivative instruments at fair value as either assets or liabilities on the consolidated statements of financial condition in derivative assets and accrued expenses and other liabilities, respectively, and have elected to present all derivatives with counterparties on a gross basis. For fair value derivatives that qualify for hedge accounting, we record changes in the fair value in noninterest income. For derivatives that do not qualify for hedge accounting, the fair value impact is recorded in noninterest income in the income statement. For derivatives designated as cash flow hedges, the gain or loss on the derivatives is recorded in other comprehensive income and subsequently reclassified into earnings in the same period during which the hedged transaction affects earnings. Derivative instruments utilized by the Company included the following: Interest Rate Swaps and Caps. We offer interest rate swap and cap products to certain loan clients to allow them to hedge the risk of rising interest rates on their variable rate loans. When such products are issued, we also enter into an offsetting swap with institutional counterparties to eliminate the interest rate risk. These back-to-back derivative agreements, which generate fee income for us, are intended to offset each other. We retain the credit risk of the original loan. The net cash flow for us is equal to the interest income received from a variable rate loan originated with the client plus a fee. These swaps and caps are not designated as accounting hedges and are recorded at fair value in derivative assets and accrued expenses and other liabilities in the consolidated statements of financial condition. The changes in fair value are recorded in noninterest income in the consolidated statements of operations. Foreign Exchange Contracts . We offer short-term foreign exchange contracts to our clients to purchase and/or sell foreign currencies at set rates in the future. These products allow clients to hedge the foreign exchange rate risk of their deposits and loans denominated in foreign currencies. In conjunction with these products, we also enter into offsetting contracts with institutional counterparties to hedge our foreign exchange rate risk. These back-to-back contracts allow us to offer our clients foreign exchange products while minimizing our exposure to foreign exchange rate fluctuations. These foreign exchange contracts are not designated as accounting hedges and are recorded at fair value in derivative assets and accrued expenses and other liabilities on the consolidated statements of financial condition. Interest Rate Swaptions and Contingent Forward Loan Sale Agreement. Concurrently with the announcement of the proposed merger with PacWest, we entered into an aggregate of $3.1 billion in interest rate swaptions to hedge the interest rate risk associated with various assets on our balance sheet in anticipation of the sale of such assets in connection with the proposed merger with PacWest and a contingent forward loan sale agreement on $1.8 billion of the SFR loan portfolio. The contingent forward loan sale agreement is contingent upon receipt of approval to close the bank merger. Should the merger not close for any reason, we intend to continue to hold the SFR loan portfolio for investment. These derivative instruments are not designated as accounting hedges and are recorded at fair value in derivative assets on the consolidated statements of financial condition. The fair values of these derivative instruments will rise and fall in response to changes in market interest rates and the change in fair value is recorded in noninterest income in the consolidated statements of operations. Cash Flow Hedge . The Company applies hedge accounting for qualifying derivative instruments used to manage interest rate risk. A cash flow hedge is a derivative instrument used to manage the variability in future expected cash flows that would otherwise be impacted by movements in interest rates. To quality for hedge accounting, the cash flow hedge must be highly effective at reducing the risk associated with the hedged exposure. The effectiveness of the hedging relationship is documented at inception and is monitored at least quarterly through the life of the transaction. A cash flow hedge that is designated as highly effective is carried at fair value with the change in fair value recorded in other comprehensive income (loss) (“AOCI”) and subsequently recognized in earnings in the same period that the hedged forecasted transaction affects earnings. At that time, the amount reclassified from AOCI is presented in the same income statement line item in which the hedged transaction is reported (interest income or expense). If the cash flow hedge becomes ineffective, the change in fair value is reclassified from AOCI to earnings. Cash flows from cash flow hedges are classified as operating activities in the statement of cash flows. We classify both the earnings and cash flow impact from these derivatives consistent with the underlying hedged item. Loan Modifications to Borrowers Experiencing Financial Difficulty: Prior to the adoption of ASU 2022-02, we accounted for the modification to the contractual terms of a loan that resulted in granting a concession to a borrower experiencing financial difficulties as a troubled debt restructuring (“TDR”). Effective January 1, 2023, we adopted ASU 2022-02, which eliminated TDR accounting prospectively for all restructurings occurring on or after January 1, 2023. Loans that were considered a TDR prior to the adoption of ASU 2022-02 will continue to be accounted for under the superseded TDR accounting guidance until the loan is paid off, liquidated, or subsequently modified. Since adoption of ASU 2022-02 on January 1, 2023, we have evaluated all loan modifications under ASC 310-20 to determine whether a modification made to a borrower results in a new loan or is a continuation of the existing loan.
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 consolidated financial statements and disclosures provided, and actual results could differ. The allowance for credit losses (“ACL”) (which includes the allowance for loan losses (“ALL”) and the reserve for unfunded noncancellable loan commitments (“RUC”)), loan repurchase reserve, realization of deferred tax assets, the fair value of assets and liabilities acquired in business combinations and related purchase price allocation, the valuation of goodwill and other intangible assets, other derivatives, hypothetical liquidation at book value (“HLBV”) of investments in alternative energy partnerships, and the fair value measurement of financial instruments are particularly subject to change and such change could have a material effect on the consolidated financial statements.
Sale-leaseback Transaction	Sale-leaseback Transactions In January 2022, we completed a sale-leaseback transaction for $2.4 million and recognized a gain of $0.8 million. Gains related to sale-leaseback are included in other income in the accompanying consolidated statements of operations.

FAIR VALUES OF FINANCIAL INST_2

FAIR VALUES OF FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value Assets Measured on a Recurring Basis	The following table presents our financial assets and liabilities measured at fair value on a recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs September 30, 2023 Assets Securities available-for-sale: SBA loan pools securities $ 8,699 $ — $ 8,699 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 76,844 — 76,844 — U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 85,832 — 85,832 — Non-agency residential mortgage-backed securities 104,960 — 104,960 — Collateralized loan obligations 483,804 — 483,804 — Corporate debt securities 154,915 — 154,915 — Derivative assets: Contingent forward loan sale agreement 34,902 — 34,902 — Interest rate swaptions 27,003 — 27,003 — Cash flow hedges 5,874 — 5,874 — Interest rate swaps and foreign exchange contracts 2,846 — 2,846 — Liabilities Derivative liabilities: Interest rate swaps and foreign exchange contracts (1) 2,799 — 2,799 — December 31, 2022 Assets Securities available-for-sale: SBA loan pools securities $ 11,187 $ — $ 11,187 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 40,206 — 40,206 — U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 93,191 — 93,191 — Municipal securities — — — — Non-agency residential mortgage-backed securities 80,492 — 80,492 — Collateralized loan obligations 476,603 — 476,603 — Corporate debt securities 166,618 — 166,618 — Derivative assets: Interest rate swaps and foreign exchange contracts 2,292 — 2,292 — Liabilities Derivative liabilities: Interest rate swaps and foreign exchange contracts (1) 2,251 — 2,251 — (1) Included in accrued expenses and other liabilities in the consolidated statements of financial condition.
Schedule of Fair Value Liabilities Measured on a Recurring Basis	The following table presents our financial assets and liabilities measured at fair value on a recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs September 30, 2023 Assets Securities available-for-sale: SBA loan pools securities $ 8,699 $ — $ 8,699 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 76,844 — 76,844 — U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 85,832 — 85,832 — Non-agency residential mortgage-backed securities 104,960 — 104,960 — Collateralized loan obligations 483,804 — 483,804 — Corporate debt securities 154,915 — 154,915 — Derivative assets: Contingent forward loan sale agreement 34,902 — 34,902 — Interest rate swaptions 27,003 — 27,003 — Cash flow hedges 5,874 — 5,874 — Interest rate swaps and foreign exchange contracts 2,846 — 2,846 — Liabilities Derivative liabilities: Interest rate swaps and foreign exchange contracts (1) 2,799 — 2,799 — December 31, 2022 Assets Securities available-for-sale: SBA loan pools securities $ 11,187 $ — $ 11,187 $ — U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 40,206 — 40,206 — U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 93,191 — 93,191 — Municipal securities — — — — Non-agency residential mortgage-backed securities 80,492 — 80,492 — Collateralized loan obligations 476,603 — 476,603 — Corporate debt securities 166,618 — 166,618 — Derivative assets: Interest rate swaps and foreign exchange contracts 2,292 — 2,292 — Liabilities Derivative liabilities: Interest rate swaps and foreign exchange contracts (1) 2,251 — 2,251 — (1) Included in accrued expenses and other liabilities in the consolidated statements of financial condition.
Schedule of Assets and Liabilities Measured on Non-recurring Basis	The following table presents our financial assets and liabilities measured at fair value on a non-recurring basis as of the dates indicated: Fair Value Measurement Level ($ in thousands) Fair Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs September 30, 2023 Assets Individually evaluated loans: Commercial and industrial $ 756 $ — $ — $ 756 SBA 9 — — 9 Other real estate owned: Single family residential 882 — — 882 December 31, 2022 Assets Individually evaluated loans: Single family residential mortgage $ 3,600 $ — $ — $ 3,600 Commercial and industrial 7,115 — — 7,115 SBA 3,704 — — 3,704
Schedule of Gains and (Losses) Recognized on Assets Measured at Fair Value on Non-recurring Basis	The following table presents the gains (losses) recognized on assets measured at fair value on a non-recurring basis for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Individually evaluated loans: Single family residential mortgage $ — $ 135 $ (43) $ (205) Commercial and industrial (9,994) (441) (22,294) (1,639) SBA (154) (35) (229) (207) Other consumer (95) — (265) (243) Commercial real estate — — (300) — Other real estate owned: Single family residential — — (165) —
Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments	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 Amount Fair Value Measurement Level ($ in thousands) Level 1 Level 2 Level 3 Total September 30, 2023 Financial assets Cash and cash equivalents $ 310,985 $ 310,985 $ — $ — $ 310,985 Securities held-to-maturity 328,287 — 250,285 — 250,285 Securities available-for-sale 915,054 — 915,054 — 915,054 Federal Home Loan Bank and other bank stock 60,336 — 60,336 — 60,336 Loans receivable, net of allowance for credit losses 6,886,642 — — 6,261,148 6,261,148 Accrued interest receivable 39,494 39,494 — — 39,494 Derivative assets 70,625 — 70,625 — 70,625 Financial liabilities Deposits 6,640,630 5,054,976 1,576,721 — 6,631,697 Advances from Federal Home Loan Bank and Federal Reserve Bank borrowings 1,008,293 — 974,319 — 974,319 Other borrowings 185,802 — 185,802 — 185,802 Long-term debt 274,279 — 261,313 — 261,313 Derivative liabilities (1) 2,799 — 2,799 — 2,799 Accrued interest payable 21,187 21,187 — — 21,187 December 31, 2022 Financial assets Cash and cash equivalents $ 228,896 $ 228,896 $ — $ — $ 228,896 Securities held-to-maturity 328,641 — 262,460 — 262,460 Securities available-for-sale 868,297 — 868,297 — 868,297 Federal Home Loan Bank and other bank stock 57,092 — 57,092 — 57,092 Loans receivable, net of allowance for credit losses 7,029,078 — — 6,526,916 6,526,916 Accrued interest receivable 37,942 37,942 — — 37,942 Derivative assets 2,292 — 2,292 — 2,292 Financial liabilities Deposits 7,120,921 5,931,500 1,175,857 — 7,107,357 Advances from Federal Home Loan Bank 727,348 — 699,730 — 699,730 Long-term debt 274,906 — 269,673 — 269,673 Derivative liabilities (1) 2,251 — 2,251 — 2,251 Accrued interest payable 7,004 7,004 — — 7,004 (1) Included in accrued expenses and other liabilities in the consolidated statements of financial condition.

INVESTMENT SECURITIES (Tables)

INVESTMENT SECURITIES (Tables)	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Value of Available-for-Sale Investment Securities	The following table presents the amortized cost and fair value of the investment securities portfolio as of the dates indicated: ($ in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Allowance Fair September 30, 2023 Securities held-to-maturity: U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ 152,748 $ — $ (35,680) $ — $ 117,068 U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 61,337 — (15,688) — 45,649 Municipal securities 114,202 — (26,634) — 87,568 Total securities held-to-maturity $ 328,287 $ — $ (78,002) $ — $ 250,285 Securities available-for-sale: SBA loan pool securities $ 8,721 $ 5 $ (27) $ — $ 8,699 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 79,786 — (2,942) — 76,844 U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 93,696 — (7,864) — 85,832 Non-agency residential mortgage-backed securities 120,062 — (15,102) — 104,960 Collateralized loan obligations 489,940 — (6,136) — 483,804 Corporate debt securities 175,804 — (19,853) (1,036) 154,915 Total securities available-for-sale $ 968,009 $ 5 $ (51,924) $ (1,036) $ 915,054 December 31, 2022 Securities held-to-maturity: U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ 153,033 $ — $ (29,807) $ — $ 123,226 U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 61,404 — (11,946) — 49,458 Municipal securities 114,204 — (24,428) — 89,776 Total securities held-to-maturity $ 328,641 $ — $ (66,181) $ — $ 262,460 Securities available-for-sale: SBA loan pool securities $ 11,241 $ — $ (54) $ — $ 11,187 U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 40,431 — (225) — 40,206 U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 99,075 — (5,884) — 93,191 Non-agency residential mortgage-backed securities 90,832 — (10,340) — 80,492 Collateralized loan obligations 492,203 — (15,600) — 476,603 Corporate debt securities 175,781 32 (9,195) — 166,618 Total securities available-for-sale $ 909,563 $ 32 $ (41,298) $ — $ 868,297
Schedule of Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses	The following table presents proceeds from sales and calls of AFS securities and the associated gross gains and losses realized through earnings upon the sales and calls of AFS securities for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Gross realized gains $ — $ — $ — $ 209 Gross realized losses — — — (193) Net realized gains on sales and calls $ — $ — $ — $ 16 Proceeds from sales and calls $ — $ — $ 20,000 $ 56,145
Schedule of Securities Available-for-Sale	The following table summarizes the AFS investment securities with unrealized losses by security type and length of time in a continuous, unrealized loss position as of the dates indicated: Less Than 12 Months 12 Months or Longer Total ($ in thousands) Fair Gross Unrealized Losses Fair Gross Unrealized Losses Fair Gross Unrealized Losses September 30, 2023 Securities available-for-sale: SBA loan pool securities $ — $ — $ 7,060 $ (27) $ 7,060 $ (27) U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 76,844 (2,942) — — 76,844 (2,942) U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 50,151 (1,131) 35,690 (6,733) 85,841 (7,864) Non-agency residential mortgage-backed securities 67,769 (3,112) 37,191 (11,990) 104,960 (15,102) Collateralized loan obligations 24,859 (141) 441,944 (5,995) 466,803 (6,136) Corporate debt securities 14,774 (1,430) 140,140 (18,423) 154,914 (19,853) Total securities available-for-sale $ 234,397 $ (8,756) $ 662,025 $ (43,168) $ 896,422 $ (51,924) December 31, 2022 Securities available-for-sale: SBA loan pool securities $ 2,260 $ (3) $ 8,927 $ (51) $ 11,187 $ (54) U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities 40,206 (225) — — 40,206 (225) U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 76,441 (2,533) 16,750 (3,351) 93,191 (5,884) Non-agency residential mortgage-backed securities 80,492 (10,340) — — 80,492 (10,340) Collateralized loan obligations 235,936 (7,492) 240,667 (8,108) 476,603 (15,600) Corporate debt securities 159,492 (8,374) 4,180 (821) 163,672 (9,195) Total securities available-for-sale $ 594,827 $ (28,967) $ 270,524 $ (12,331) $ 865,351 $ (41,298) The following table presents the fair value and weighted average yields using amortized cost of the AFS securities portfolio as of September 30, 2023, based on the earlier of contractual maturity dates or next repricing dates: One year or less More than One Year through Five Years More than Five Years through Ten Years More than Ten Years Total ($ in thousands) Fair Weighted-Average Yield Fair Weighted-Average Yield Fair Weighted-Average Yield Fair Weighted-Average Yield Fair Weighted-Average Yield Securities available-for-sale: SBA loan pool securities $ 8,699 5.79 % $ — — % $ — — % $ — — % $ 8,699 5.79 % U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities — — % — — % — — % 76,844 5.52 % 76,844 5.52 % U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations 5,066 5.98 % 7,528 3.72 % 23,087 3.25 % 50,151 5.21 % 85,832 4.52 % Non-agency residential mortgage-backed securities — — % — — % — — % 104,960 4.02 % 104,960 4.02 % Collateralized loan obligations 483,804 7.20 % — — % — — % — — % 483,804 7.20 % Corporate debt securities — — % 143,052 4.82 % 11,863 5.73 % — — % 154,915 4.89 % Total securities available-for-sale $ 497,569 7.16 % $ 150,580 4.76 % $ 34,950 4.04 % $ 231,955 4.74 % $ 915,054 5.97 %
Schedule of Investments Classified by Contractual Maturity Date	The following table presents the amortized cost and fair value of the investment securities portfolio as of September 30, 2023, based on the earlier of contractual maturity dates or next repricing date: Held-to-Maturity Available-for-Sale ($ in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Earlier of maturity or next repricing date: Within one year $ — $ — $ 503,799 $ 497,569 One to five years — — 171,294 150,580 Five to ten years 37,305 30,544 41,786 34,950 Greater than ten years 290,982 219,741 251,130 231,955 Total $ 328,287 $ 250,285 $ 968,009 $ 915,054
Schedule of Fair Value and Weighted Average Yields of Securities Held-to-Maturity	The following table presents the amortized cost and weighted average yields using amortized cost of the HTM securities portfolio as of September 30, 2023, based on the earlier of contractual maturity dates or next repricing dates: One year or less More than One Year through Five Years More than Five Years through Ten Years More than Ten Years Total ($ in thousands) Amortized Weighted-Average Yield Amortized Weighted-Average Yield Amortized Weighted-Average Yield Amortized Weighted-Average Yield Amortized Weighted-Average Yield Securities held-to-maturity: U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities $ — — % $ — — % $ 9,334 2.52 % $ 143,414 2.70 % $ 152,748 2.69 % U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations — — % — — % — — % 61,337 2.64 % 61,337 2.64 % Municipal securities — — % — — % 27,971 2.32 % 86,231 2.72 % 114,202 2.62 % Total securities held-to-maturity $ — — % $ — — % $ 37,305 2.37 % $ 290,982 2.69 % $ 328,287 2.65 %

LOANS AND ALLOWANCE FOR CREDI_2

LOANS AND ALLOWANCE FOR CREDIT LOSSES (Tables)	9 Months Ended
	Sep. 30, 2023
Receivables [Abstract]
Schedule of Loans and Leases Receivable	The following table presents the balances in our loan portfolio as of the dates indicated: ($ in thousands) September 30, December 31, Commercial: Commercial and industrial (1)(2) $ 1,942,964 $ 1,845,960 Commercial real estate (2) 1,173,332 1,259,651 Multifamily 1,654,272 1,689,943 SBA 56,600 68,137 Construction 262,715 243,553 Consumer: Single family residential mortgage 1,782,655 1,920,806 Other consumer 88,494 86,988 Total loans $ 6,961,032 $ 7,115,038 Allowance for loan losses (74,390) (85,960) Loans receivable, net $ 6,886,642 $ 7,029,078 (1) Includes warehouse lending balances of $647.7 million and $602.5 million at September 30, 2023 and December 31, 2022. (2) $102.3 million of owner-occupied CRE loans were moved to the C&I category from the CRE category during the third quarter of 2023. The following table presents the balances of total loans as of the dates indicated: ($ in thousands) September 30, December 31, Unpaid principal balance $ 6,953,895 $ 7,107,897 Unamortized net premiums 16,571 18,319 Unamortized net deferred (fees) costs (1,331) (1,880) Fair value adjustment (1) (8,103) (9,298) Total loans $ 6,961,032 $ 7,115,038 (1) At September 30, 2023, balance includes $7.1 million related to the acquisition of Pacific Mercantile Bancorp (“PMB”), of which $3.6 million related to purchased credit deteriorated (“PCD”) loans. At December 31, 2022, includes $8.0 million related to the PMB acquisition, of which $4.1 million related to PCD loans. Collateral dependent loans consisted of the following as of the dates indicated: September 30, 2023 Real Estate ($ in thousands) Commercial Residential Business Assets Automobile Total Commercial: Commercial and industrial $ — $ — $ 6,661 $ — $ 6,661 Commercial real estate 1,324 540 — — 1,864 Multifamily 1,118 — — — 1,118 SBA 15 796 6,758 — 7,569 Consumer: Single family residential mortgage — 39,836 — — 39,836 Other consumer — 130 — 326 456 Total loans $ 2,457 $ 41,302 $ 13,419 $ 326 $ 57,504 December 31, 2022 Real Estate ($ in thousands) Commercial Residential Business Assets Automobile Total Commercial: Commercial and industrial $ — $ — $ 18,392 $ — $ 18,392 Commercial real estate 910 — — — 910 SBA 23 4,702 5,691 — 10,416 Consumer: Single family residential mortgage — 21,262 — — 21,262 Other consumer — 81 — 113 194 Total loans $ 933 $ 26,045 $ 24,083 $ 113 $ 51,174
Schedule of Risk Categories for Loans and Leases	The following table presents the risk categories for total loans by class of loans and origination year as of September 30, 2023: Term Loans Amortized Cost Basis by Origination Year ($ in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis Total September 30, 2023 Commercial: Commercial and industrial Pass $ 102,946 $ 269,069 $ 206,543 $ 65,557 $ 37,272 $ 229,611 $ 935,283 $ 34,257 $ 1,880,538 Special mention — 5,368 4,499 — 10,370 10,231 2,252 1,354 34,074 Substandard — 3,560 32 14 200 12,843 5,009 1,978 23,636 Doubtful (1) 3,910 — — — — — 806 — 4,716 Commercial and industrial (1) 106,856 277,997 211,074 65,571 47,842 252,685 943,350 37,589 1,942,964 Commercial real estate Pass 58,551 352,908 297,564 46,183 80,265 316,530 1,575 54 1,153,630 Special mention — 1,953 8,549 — — — — — 10,502 Substandard — 540 — — 7,175 648 — 837 9,200 Doubtful — — — — — — — — — Commercial real estate (1) 58,551 355,401 306,113 46,183 87,440 317,178 1,575 891 1,173,332 Multifamily Pass 23,474 623,794 396,291 152,985 223,079 205,461 1,087 9,169 1,635,340 Special mention — — — 3,000 — — — — 3,000 Substandard — — — — 1,117 14,815 — — 15,932 Doubtful — — — — — — — — — Multifamily 23,474 623,794 396,291 155,985 224,196 220,276 1,087 9,169 1,654,272 SBA Pass — 9,231 10,456 3,472 5,197 17,814 63 420 46,653 Special mention — — 672 — — 555 — 1 1,228 Substandard — — — 295 860 6,422 351 489 8,417 Doubtful — — — — — — — 302 302 SBA — 9,231 11,128 3,767 6,057 24,791 414 1,212 56,600 Construction Pass 3,303 104,244 102,157 27,825 — 24,971 215 — 262,715 Special mention — — — — — — — — — Substandard — — — — — — — — — Doubtful — — — — — — — — — Construction 3,303 104,244 102,157 27,825 — 24,971 215 — 262,715 Consumer: Single family residential mortgage Pass — 582,049 757,366 69,361 41,601 277,965 2,029 — 1,730,371 Special mention — 6,128 1,741 — — 3,910 — — 11,779 Substandard — 10,745 10,152 2,162 — 15,582 1,864 — 40,505 Doubtful — — — — — — — — — Single family residential mortgage — 598,922 769,259 71,523 41,601 297,457 3,893 — 1,782,655 Other consumer Pass 22,449 17,239 12,888 7,119 3,768 13,176 9,645 1,404 87,688 Special mention — — — — — 1 349 — 350 Substandard — — — 167 117 41 81 50 456 Doubtful — — — — — — — — — Other consumer 22,449 17,239 12,888 7,286 3,885 13,218 10,075 1,454 88,494 Total loans $ 214,633 $ 1,986,828 $ 1,808,910 $ 378,140 $ 411,021 $ 1,150,576 $ 960,609 $ 50,315 $ 6,961,032 Total loans Pass $ 210,723 $ 1,958,534 $ 1,783,265 $ 372,502 $ 391,182 $ 1,085,528 $ 949,897 $ 45,304 $ 6,796,935 Special mention — 13,449 15,461 3,000 10,370 14,697 2,601 1,355 60,933 Substandard — 14,845 10,184 2,638 9,469 50,351 7,305 3,354 98,146 Doubtful (2) 3,910 — — — — — 806 302 5,018 Total loans $ 214,633 $ 1,986,828 $ 1,808,910 $ 378,140 $ 411,021 $ 1,150,576 $ 960,609 $ 50,315 $ 6,961,032 (1) $102.3 million of owner-occupied CRE loans were moved to the C&I category from the CRE category during the third quarter of 2023. (2) Doubtful loans in origination year 2023 included one commercial and industrial (“C&I”) loan that was modified and accounted for as a new loan. The following table presents the risk categories for total loans by class of loans and origination year as of December 31, 2022: Term Loans Amortized Cost Basis by Origination Year ($ in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis Total December 31, 2022 Commercial: Commercial and industrial Pass $ 269,367 $ 170,513 $ 62,931 $ 53,001 $ 76,811 $ 164,394 $ 932,464 $ 19,803 $ 1,749,284 Special mention — 19,203 1,042 — 1 11,528 17,142 483 49,399 Substandard 3,833 64 3,002 502 3,630 2,729 23,012 6,501 43,273 Doubtful — — — 4,004 — — — — 4,004 Commercial and industrial 273,200 189,780 66,975 57,507 80,442 178,651 972,618 26,787 1,845,960 Commercial real estate Pass 348,298 363,335 60,564 94,772 155,790 224,213 1,163 61 1,248,196 Special mention — — — — — 1,745 — — 1,745 Substandard — — — — 1 8,799 910 — 9,710 Doubtful — — — — — — — — — Commercial real estate 348,298 363,335 60,564 94,772 155,791 234,757 2,073 61 1,259,651 Multifamily Pass 626,186 390,928 154,636 229,511 109,887 138,063 3 9,307 1,658,521 Special mention — — 2,997 — — — — — 2,997 Substandard — — — — 11,069 17,356 — — 28,425 Doubtful — — — — — — — — — Multifamily 626,186 390,928 157,633 229,511 120,956 155,419 3 9,307 1,689,943 SBA Pass 9,421 15,468 4,009 5,899 1,176 19,090 603 123 55,789 Special mention — — — — 201 598 — 1 800 Substandard — — 320 339 385 9,097 628 779 11,548 Doubtful — — — — — — — — — SBA 9,421 15,468 4,329 6,238 1,762 28,785 1,231 903 68,137 Construction Pass 85,430 98,572 27,704 6,495 — 25,352 — — 243,553 Special mention — — — — — — — — — Substandard — — — — — — — — — Doubtful — — — — — — — — — Construction 85,430 98,572 27,704 6,495 — 25,352 — — 243,553 Consumer: Single family residential mortgage Pass 627,213 797,744 72,658 47,284 89,492 255,520 — — 1,889,911 Special mention 1,716 218 — 1,537 3,378 2,252 — — 9,101 Substandard 3,571 — 2,171 — 8,573 7,479 — — 21,794 Doubtful — — — — — — — — — Single family residential mortgage 632,500 797,962 74,829 48,821 101,443 265,251 — — 1,920,806 Other consumer Pass 23,340 15,986 8,805 5,524 3,363 15,920 10,914 2,747 86,599 Special mention — — — 3 — 19 62 54 138 Substandard — — 56 — 83 31 81 — 251 Doubtful — — — — — — — — — Other consumer 23,340 15,986 8,861 5,527 3,446 15,970 11,057 2,801 86,988 Total loans $ 1,998,375 $ 1,872,031 $ 400,895 $ 448,871 $ 463,840 $ 904,185 $ 986,982 $ 39,859 $ 7,115,038 Total loans Pass $ 1,989,255 $ 1,852,546 $ 391,307 $ 442,486 $ 436,519 $ 842,552 $ 945,147 $ 32,041 $ 6,931,853 Special mention 1,716 19,421 4,039 1,540 3,580 16,142 17,204 538 64,180 Substandard 7,404 64 5,549 841 23,741 45,491 24,631 7,280 115,001 Doubtful — — — 4,004 — — — — 4,004 Total loans $ 1,998,375 $ 1,872,031 $ 400,895 $ 448,871 $ 463,840 $ 904,185 $ 986,982 $ 39,859 $ 7,115,038 The following table presents the gross charge-offs by class of loans and origination year as of September 30, 2023: Gross Charge-offs ($ in thousands) 2023 2022 2021 2020 2019 Prior Total Three Months Ended September 30, 2023 Commercial: Commercial and industrial $ — $ (1,828) $ (368) $ (5,997) $ — $ (3,170) $ (11,363) SBA — — — — — (169) (169) Consumer: Other consumer — — (112) — — — (112) Total loans $ — $ (1,828) $ (480) $ (5,997) $ — $ (3,339) $ (11,644) Nine Months Ended September 30, 2023 Commercial: Commercial and industrial $ — $ (7,545) $ (1,453) $ (5,997) $ — $ (4,079) $ (19,074) Commercial real estate — — — — — (300) (300) SBA — — (64) — — (1,186) (1,250) Consumer: Single family residential mortgage — — — (372) — — (372) Other consumer — (16) (112) (59) — (77) (264) Total loans $ — $ (7,561) $ (1,629) $ (6,428) $ — $ (5,642) $ (21,260)
Schedule of Aging of Recorded Investment in Past Due Loans and Leases	The following table presents the aging of the recorded investment in past due loans, excluding accrued interest receivable (which is not considered to be material), by class of loans as of the dates indicated: ($ in thousands) 30 - 59 Days Past Due 60 - 89 Days Past Due Greater than 89 Days Past due Total Past Due Current Total September 30, 2023 Commercial: Commercial and industrial $ 452 $ 2,452 $ 9,210 $ 12,114 $ 1,930,850 $ 1,942,964 Commercial real estate 1,326 3,569 1,324 6,219 1,167,113 1,173,332 Multifamily — — 1,118 1,118 1,653,154 1,654,272 SBA 273 481 7,193 7,947 48,653 56,600 Construction — — — — 262,715 262,715 Consumer: Single family residential mortgage 25,437 16,064 20,702 62,203 1,720,452 1,782,655 Other consumer 454 50 145 649 87,845 88,494 Total $ 27,942 $ 22,616 $ 39,692 $ 90,250 $ 6,870,782 $ 6,961,032 December 31, 2022 Commercial: Commercial and industrial $ 4,002 $ 481 $ 13,833 $ 18,316 $ 1,827,644 $ 1,845,960 Commercial real estate 311 — 910 1,221 1,258,430 1,259,651 Multifamily — — — — 1,689,943 1,689,943 SBA 287 — 10,299 10,586 57,551 68,137 Construction — — — — 243,553 243,553 Consumer: Single family residential mortgage 36,338 5,068 19,431 60,837 1,859,969 1,920,806 Other consumer 163 16 81 260 86,728 86,988 Total $ 41,101 $ 5,565 $ 44,554 $ 91,220 $ 7,023,818 $ 7,115,038 The following table presents the aging of loans modified to borrowers experiencing financial difficulty at September 30, 2023: ($ in thousands) 30-59 Days 60-89 Days Over 90 Days Total Current Total September 30, 2023 Commercial: Commercial and industrial $ — $ — $ 3,910 $ 3,910 $ 654 $ 4,564 Consumer: Single family residential mortgage 309 — — 309 2,778 3,087 $ 309 $ — $ 3,910 $ 4,219 $ 3,432 $ 7,651 There were no loan modifications made to borrowers experiencing financial difficulty during the quarter ended September 30, 2023 that subsequently defaulted.
Schedule of Composition of Nonaccrual Loans and Leases	The following table presents nonaccrual loans as of the dates indicated: September 30, 2023 December 31, 2022 ($ in thousands) Total Nonaccrual Loans with no ACL Total Nonaccrual Loans with no ACL Nonaccrual loans Commercial: Commercial and industrial $ 9,713 $ 4,218 $ 22,613 $ 10,959 Commercial real estate 1,864 1,864 910 910 Multi-family 1,118 1,118 — — SBA 7,569 7,481 10,417 5,613 Consumer: Single family residential mortgage 39,836 39,836 21,116 17,187 Other consumer 456 457 195 195 Total nonaccrual loans $ 60,556 $ 54,974 $ 55,251 $ 34,864
Schedule of Allowance for Loan and Lease Losses and Recorded Investment, Excluding Accrued Interest, in Loans	The following table presents a summary of activity in the ACL for the periods indicated: Three Months Ended September 30, ($ in thousands) 2023 2022 Allowance Reserve for Unfunded Loan Commitments Allowance Allowance Reserve for Unfunded Loan Commitments Allowance Balance at beginning of period $ 80,883 $ 4,005 $ 84,888 $ 93,793 $ 5,905 $ 99,698 Charge-offs (11,644) — (11,644) (912) — (912) Recoveries 151 — 151 63 — 63 Net (charge-offs) recoveries (11,493) — (11,493) (849) — (849) Provision for (reversal of) credit losses 5,000 — 5,000 (500) 500 — Balance at end of period $ 74,390 $ 4,005 $ 78,395 $ 92,444 $ 6,405 $ 98,849 Nine Months Ended September 30, ($ in thousands) 2023 2022 Allowance Reserve for Unfunded Loan Commitments Allowance Allowance Reserve for Unfunded Loan Commitments Allowance Balance at beginning of period $ 85,960 $ 5,305 $ 91,265 $ 92,584 $ 5,605 $ 98,189 Charge-offs (21,260) — (21,260) (1,637) — (1,637) Recoveries 526 — 526 33,839 — 33,839 Net (charge-offs) recoveries (20,734) — (20,734) 32,202 — 32,202 Provision for (reversal of) credit losses 9,164 (1,300) 7,864 (32,342) 800 (31,542) Balance at end of period $ 74,390 $ 4,005 $ 78,395 $ 92,444 $ 6,405 $ 98,849 The following table presents the activity and balance in the ALL as of or for the three and nine months ended September 30, 2023: ($ in thousands) Commercial and Industrial Commercial Real Estate Multifamily SBA Construction Single Family Residential Mortgage Other Consumer Total ALL: Three Months Ended September 30, 2023: Balance at June 30, 2023 $ 32,823 $ 15,767 $ 14,697 $ 1,387 $ 6,053 $ 9,518 $ 638 $ 80,883 Charge-offs (11,363) — — (169) — — (112) (11,644) Recoveries 22 — — 6 — 1 122 151 Net (charge-offs) recoveries (11,341) — — (163) — 1 10 (11,493) Provision for (reversal of) credit losses - loans 8,160 (2,594) (734) (142) 116 267 (73) 5,000 Balance at September 30, 2023 $ 29,642 $ 13,173 $ 13,963 $ 1,082 $ 6,169 $ 9,786 $ 575 $ 74,390 Nine Months Ended September 30, 2023: Balance at December 31, 2022 $ 34,156 $ 15,977 $ 14,696 $ 2,648 $ 5,850 $ 12,050 $ 583 $ 85,960 Charge-offs (19,074) (300) — (1,250) — (372) (264) (21,260) Recoveries 61 — — 316 — 3 146 526 Net (charge-offs) recoveries (19,013) (300) — (934) — (369) (118) (20,734) Provision for (reversal of) credit losses - loans 14,499 (2,504) (733) (632) 319 (1,895) 110 9,164 Balance at September 30, 2023 $ 29,642 $ 13,173 $ 13,963 $ 1,082 $ 6,169 $ 9,786 $ 575 $ 74,390 The following table presents the activity and balance in the ALL as of or for the three and nine months ended September 30, 2022: ($ in thousands) Commercial and Industrial Commercial Real Estate Multifamily SBA Construction Single Family Residential Mortgage Other Consumer Total ALL: Three Months Ended September 30, 2022: Balance at June 30, 2022 $ 41,413 $ 15,742 $ 15,678 $ 3,033 $ 4,255 $ 12,805 $ 867 $ 93,793 Charge-offs (867) — — (45) — — — (912) Recoveries 48 3 — 1 — 1 10 63 Net recoveries (charge-offs) (819) 3 — (44) — 1 10 (849) Provision for (reversal of) credit losses - loans (1,769) 1,091 275 (29) 1,168 (959) (277) (500) Balance at September 30, 2022 $ 38,825 $ 16,836 $ 15,953 $ 2,960 $ 5,423 $ 11,847 $ 600 $ 92,444 Nine Months Ended September 30, 2022: Balance at December 31, 2021 $ 33,557 $ 21,727 $ 17,893 $ 3,017 $ 5,622 $ 9,608 $ 1,160 $ 92,584 Charge-offs (1,187) — — (197) — (10) (243) (1,637) Recoveries 32,865 3 — 762 — 193 16 33,839 Net recoveries (charge-offs) 31,678 3 — 565 — 183 (227) 32,202 (Reversal of) provision for credit losses - loans (26,410) (4,894) (1,940) (622) (199) 2,056 (333) (32,342) Balance at September 30, 2022 $ 38,825 $ 16,836 $ 15,953 $ 2,960 $ 5,423 $ 11,847 $ 600 $ 92,444
Schedule of Troubled Debt Restructurings	Loans modified for borrowers experiencing financial difficulty consisted of the following as of the dates indicated: ($ in thousands) Commercial and industrial Single family residential mortgage Total September 30, 2023 Interest rate reduction: Amortized cost basis $ — $ 2,492 $ 2,492 % of total class of loans — % 0.1 % — % Term extension: Amortized cost basis $ — $ 595 $ 595 % of total class of loans — % — % — % Combination - principal reduction and payment delays: Amortized cost basis $ 3,910 $ — $ 3,910 % of total class of loans 0.2 % — % 0.1 % Combination - term extension and interest rate reduction Amortized cost basis $ 654 $ — $ 654 % of total class of loans — % — % — % Total amortized cost basis $ 4,564 $ 3,087 $ 7,651 Percentage of total class of loans 0.2 % 0.2 % 0.1 %

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES (Tables)	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table presents changes in the carrying amount of goodwill for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Goodwill, beginning of period $ 114,312 $ 95,127 $ 114,312 $ 94,301 Goodwill from business combination — 18,190 — 18,190 Goodwill adjustments for purchase accounting — 995 — 1,821 Goodwill, end of period $ 114,312 $ 114,312 $ 114,312 $ 114,312
Schedule of Finite-lived Intangible Assets	Other intangibles are comprised of the following at September 30, 2023 and December 31, 2022: ($ in thousands) September 30, December 31, Core deposit intangibles $ 3,078 $ 3,932 Developed technology 2,216 2,637 Other intangibles 848 957 Total other intangibles $ 6,142 $ 7,526 The following table presents changes in the carrying amount of other intangibles for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Other intangibles: Balance, beginning of period $ 38,778 $ 34,978 $ 38,778 $ 35,958 Other intangibles from business combination — 3,800 — 3,800 Purchase accounting adjustments — — — (980) Balance, end of period 38,778 38,778 38,778 38,778 Accumulated amortization: Balance, beginning of period 32,175 30,301 31,252 29,547 Amortization of other intangibles 461 396 1,384 1,150 Balance, end of period 32,636 30,697 32,636 30,697 Other intangibles $ 6,142 $ 8,081 $ 6,142 $ 8,081
Schedule of Estimated Future Amortization Expense	The following table presents estimated future amortization expense of other intangibles as of September 30, 2023: ($ in thousands) Remainder of 2023 2024 2025 2026 2027 2028 and After Total Estimated future amortization expense $ 415 $ 1,425 $ 1,107 $ 1,013 $ 811 $ 1,371 $ 6,142

FEDERAL HOME LOAN BANK ADVANC_2

FEDERAL HOME LOAN BANK ADVANCES, FEDERAL RESERVE BANK BORROWINGS AND OTHER BORROWINGS (Tables)	9 Months Ended
	Sep. 30, 2023
Federal Home Loan Banks [Abstract]
Schedule of Advances from the FHLB	The following table presents advances from the FHLB as of the dates indicated: ($ in thousands) September 30, December 31, Fixed rate: Outstanding balance (1) $ 811,000 $ 711,000 Interest rates ranging from 0.64 % 0.64 % Interest rates ranging to 3.70 % 3.70 % Weighted average interest rate 3.04 % 2.97 % Variable rate: Outstanding balance $ — $ 20,000 Weighted average interest rate — % 4.59 %

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Schedule of Long-Term Debt Instruments	The following table presents our long-term debt as of the dates indicated: September 30, 2023 December 31, 2022 ($ in thousands) Interest Maturity Par Unamortized Debt Issuance Cost and Discount Par Unamortized Debt Issuance Cost and Discount Senior notes (1) 5.25% 4/15/2025 $ 174,000 $ (520) $ 175,000 $ (722) Subordinated notes (2) 4.375% 10/30/2030 85,000 (1,728) 85,000 (1,899) PMB Statutory Trust III, junior subordinated debentures SOFR + 3.40% 9/26/2032 7,217 — 7,217 — PMB Capital Trust III, junior subordinated debentures SOFR + 2.00% 10/8/2034 10,310 — 10,310 — Total long-term debt, net $ 276,527 $ (2,248) $ 277,527 $ (2,621) (1) The Senior notes bear interest at a fixed rate of 5.25% per annum, payable semi-annually in arrears. (2) The Subordinated notes bear interest at an initial fixed rate of 4.375% per annum, payable semi-annually in arrears. From and including October 30, 2025 to, but excluding, the maturity date or the date of earlier redemption, the Subordinated Notes bear interest at a floating rate per annum equal to a benchmark rate, which is expected to be 3-Month Term SOFR, plus a spread of 419.5 basis points, payable quarterly in arrears.

DERIVATIVE INSTRUMENTS (Tables)

DERIVATIVE INSTRUMENTS (Tables)	9 Months Ended
	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Amount and Market Value of Mortgage Banking Derivatives	The following table presents the notional amount and fair value of our derivative instruments as of the dates indicated. September 30, 2023 December 31, 2022 ($ in thousands) Notional Amount Fair Notional Amount Fair Derivative assets: Contingent forward loan sale agreement $ 1,803,869 $ 34,902 $ — $ — Interest rate swaptions 3,093,000 27,003 — — Cash flow hedges 300,000 5,874 — — Interest rate swaps on loans 32,166 2,708 33,694 2,134 Foreign exchange contracts 4,597 138 5,885 158 Total $ 5,233,632 $ 70,625 $ 39,579 $ 2,292 Derivative liabilities: Interest rate swaps on loans $ 32,166 $ 2,669 $ 33,694 $ 2,107 Foreign exchange contracts 4,597 130 5,885 144 Total $ 36,763 $ 2,799 $ 39,579 $ 2,251

EMPLOYEE STOCK COMPENSATION (Ta

EMPLOYEE STOCK COMPENSATION (Tables)	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Share-based Compensation Expense	The following table presents total stock-based compensation expense and the related tax benefits for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Restricted stock awards and units $ 1,581 $ 1,715 $ 4,762 $ 4,482 Related tax benefits $ 457 $ 495 $ 1,377 $ 1,295
Schedule of Restricted Stock and Restricted Stock Units Activity	The following table presents unvested restricted stock awards and restricted stock units activity for the three and nine months ended September 30, 2023: Three Months Ended Nine Months Ended Number of Shares Weighted Average Grant Date Fair Value Per Share Number of Shares Weighted Outstanding at beginning of period 1,350,210 $ 14.61 1,403,245 $ 14.68 Granted (1) 41,015 $ 14.02 415,215 $ 15.87 Vested (2) (6,624) $ 14.10 (289,701) $ 17.39 Forfeited (3) (44,092) $ 17.74 (188,250) $ 13.68 Outstanding at end of period (4) 1,340,509 $ 14.60 1,340,509 $ 14.60 (1) There were zero and 79,784 performance-based shares/units included in shares granted for the three and nine months ended September 30, 2023. (2) There were zero and 66,699 performance-based shares/units included in vested shares for the three and nine months ended September 30, 2023. (3) The number of forfeited shares included aggregate performance-based shares/units of 26,076 and 150,958 for the three and nine months ended September 30, 2023 . (4) Includes 780,514 performance-based shares/units at September 30, 2023.
Schedule of Option Activity	The following tables represents stock option activity for the three and nine months ended September 30, 2023: Three Months Ended September 30, 2023 Nine Months Ended September 30, 2023 ($ in thousands, except per share data) Number Weighted-Average Exercise Price Per Share Number Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contract Term Aggregate Intrinsic Value Outstanding at beginning of period 14,904 $ 13.05 14,904 $ 13.05 Exercised (1,836) $ 10.90 (1,836) $ 10.90 Outstanding at end of period 13,068 $ 13.35 13,068 $ 13.35 1.6 years $ 3 Exercisable at end of period 13,068 $ 13.35 13,068 $ 13.35 1.6 years $ 3

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Schedule of Preferred Stock	The following table summarizes redemptions and repurchases of these depositary shares for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Series E Preferred Stock: Depositary shares repurchased — — — 3,948,080 Preferred Stock retired (shares) — — — 98,702 Consideration paid $ — $ — $ — $ 98,703 Carrying value — — — 94,956 Impact of preferred stock redemption $ — $ — $ — $ 3,747
Schedule of Changes to Accumulate Other Comprehensive Income by Components	The following table presents changes to AOCI for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Balance at beginning of period $ (49,758) $ (34,059) $ (40,597) $ 7,743 Unrealized gain (loss) on securities available-for-sale: Unrealized gain (loss) arising during the period 2,205 (19,289) (10,652) (78,392) Reclassification adjustment from other comprehensive income — — — (16) Total unrealized gain (loss) on securities available-for-sale 2,205 (19,289) (10,652) (78,408) Amortization of unrealized loss of available-for-sale securities transferred to held-to-maturity 254 275 759 608 Unrealized gain on cash flow hedges: Unrealized gain arising during the period 6,328 — 5,874 — Tax effect of current period changes (2,482) 5,494 1,163 22,478 Total changes, net of taxes 6,305 (13,520) (2,856) (55,322) Balance at end of period $ (43,453) $ (47,579) $ (43,453) $ (47,579)

VARIABLE INTEREST ENTITIES (Tab

VARIABLE INTEREST ENTITIES (Tables)	9 Months Ended
	Sep. 30, 2023
Variable Interest Entity [Line Items]
Schedule of Unconsolidated VIEs	The following table represents the carrying value of the associated unconsolidated assets and liabilities and the associated maximum loss exposure for alternative energy partnerships as of the dates indicated: ($ in thousands) September 30, December 31, Cash $ 2,902 $ 4,110 Equipment, net of depreciation 230,987 237,641 Other assets 10,590 9,838 Total unconsolidated assets $ 244,479 $ 251,589 Total unconsolidated liabilities $ 11,451 $ 11,679 Maximum loss exposure $ 18,803 $ 21,410
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Schedule of Unconsolidated VIEs	The following table presents information regarding activity in our alternative energy partnerships for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Return of capital $ 342 $ 626 $ 1,059 $ 1,782 Gain (loss) on investments in alternative energy partnerships 34 (504) (1,548) (1,705) Tax expense (benefit) recognized from HLBV application 10 (146) (448) (493)
Variable Interest Entity, Not Primary Beneficiary | Affordable Housing Fund Investment
Variable Interest Entity [Line Items]
Schedule of Unconsolidated VIEs	The following table presents information regarding balances in LIHTC investments for the periods indicated: ($ in thousands) September 30, December 31, Ending balance (1) $ 41,138 $ 45,726 Aggregate funding commitment 72,767 72,967 Total amount funded 57,417 55,487 Unfunded commitment 15,350 17,480 Maximum loss exposure 41,138 45,726 (1) Included in other assets in the accompanying Consolidated Statements of Financial Condition. The following table presents information regarding activity in our LIHTC investments for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Fundings $ 127 $ 1,128 $ 1,930 $ 3,152 Proportional amortization recognized 1,512 1,350 4,450 3,727 Income tax credits recognized 1,673 1,298 5,048 3,834

EARNINGS PER COMMON SHARE (Tabl

EARNINGS PER COMMON SHARE (Tables)	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Earnings Per Common Share	The following table presents computations of basic and diluted earnings per common share (“EPS”) for the three and nine months ended September 30, 2023: Three Months Ended September 30, 2023 Nine Months Ended ($ in thousands except per share data) Common Stock Class B Common Stock Class B Common Stock Net income $ 42,220 $ 354 $ 80,068 $ 663 Weighted average common shares outstanding 56,957,053 477,321 57,659,924 477,321 Dilutive effects of restricted shares/units 87,109 — 92,269 — Dilutive effects of stock options 353 — 623 — Average shares and dilutive common shares 57,044,515 477,321 57,752,816 477,321 Basic earnings per common share $ 0.74 $ 0.74 $ 1.39 $ 1.39 Diluted earnings per common share $ 0.74 $ 0.74 $ 1.39 $ 1.39 The following table presents computations of basic and diluted EPS for the three and nine months ended September 30, 2022: Three Months Ended September 30, 2022 Nine Months Ended September 30, 2022 ($ in thousands except per share data) Common Stock Class B Common Stock Common Stock Class B Common Stock Net income $ 24,004 $ 192 $ 98,646 $ 774 Less: preferred stock dividends — — (1,409) (11) Less: preferred stock redemption — — (3,718) (29) Net income allocated to common stockholders $ 24,004 $ 192 $ 93,519 $ 734 Weighted average common shares outstanding 59,567,082 477,321 60,846,798 477,321 Dilutive effects of restricted shares/units 444,321 — 331,389 — Dilutive effects of stock options 3,736 — 4,392 — Average shares and dilutive common shares 60,015,139 477,321 61,182,579 477,321 Basic earnings per common share $ 0.40 $ 0.40 $ 1.54 $ 1.54 Diluted earnings per common share $ 0.40 $ 0.40 $ 1.53 $ 1.54

LOAN COMMITMENTS AND OTHER RE_2

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES (Tables)	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Contractual Amount of Financial Instruments With Off-balance-sheet Risk	The following table presents the contractual amount of financial instruments with off-balance-sheet risk as of the periods indicated: September 30, 2023 December 31, 2022 ($ in thousands) Fixed Rate Variable Rate Fixed Rate Variable Rate Commitments to extend credit $ 65,639 $ 164,455 $ 50,193 $ 180,696 Unused lines of credit 46,747 1,365,588 8,392 1,505,122 Letters of credit 1,673 8,886 2,461 7,016

OTHER ASSETS AND OTHER LIABIL_2

OTHER ASSETS AND OTHER LIABILITIES (Tables)	9 Months Ended
	Sep. 30, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets and Other Liabilities	The following table presents the components of other assets as of the dates indicated: ($ in thousands) September 30, December 31, Accrued interest receivable $ 39,494 $ 37,942 Prepaid expenses 10,934 8,068 Operating lease right-of-use assets 23,104 28,780 Servicing assets 20,443 22,484 Other real estate owned 882 — Income taxes receivable — 7,679 Investments: CRA and other equity investments (1) 94,273 90,295 LIHTC investments (1) 41,138 45,726 Alternative energy partnerships (1) 18,803 21,410 Other assets 15,077 13,513 Total other assets $ 264,148 $ 275,897 (1) See Note 12 - Variable Interest Entities regarding alternative energy partnerships, LIHTC and other CRA investments The following table presents the components of accrued expenses and other liabilities as of the dates indicated: ($ in thousands) September 30, December 31, Accrued interest payable $ 21,187 $ 7,004 Accounts payable and accrued expenses 41,741 37,560 Income taxes payable 19,062 — Derivative liabilities (1) 2,799 2,251 Lease liability 25,654 33,122 Commitments to fund LIHTC investments (2) 15,350 17,480 Reserve for unfunded noncancellable loan commitments 4,005 5,305 Reserve for loss on repurchased loans 1,971 2,989 Other liabilities 4,579 8,512 Total accrued expenses and other liabilities $ 136,348 $ 114,223 (1) See Note 9 - Derivative Instruments for information regarding derivative instruments (2) See Note 14 - Loan Commitments and Other Related Activities regarding commitments to fund LIHTC

REVENUE RECOGNITION (Tables)

REVENUE RECOGNITION (Tables)	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Noninterest (Loss) Income	The following table presents noninterest income, segregated by revenue streams, in-scope and out-of-scope of Topic 606 - Revenue From Contracts With Customers , for the periods indicated: Three Months Ended Nine Months Ended ($ in thousands) 2023 2022 2023 2022 Noninterest income In scope of Topic 606 Deposit service fees $ 1,508 $ 1,486 $ 4,148 $ 4,767 Debit card fees 417 472 1,217 1,467 Other 214 240 913 536 Noninterest income (in-scope of Topic 606) 2,139 2,198 6,278 6,770 Noninterest income (out-of-scope of Topic 606) 48,639 3,483 58,383 12,007 Total noninterest income $ 50,778 $ 5,681 $ 64,661 $ 18,777

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) $ / shares in Units, $ in Thousands, shares in Millions		3 Months Ended			9 Months Ended
	Jul. 25, 2023 USD ($) consecutive-tradingDay tradingDay $ / shares shares	Sep. 30, 2023 USD ($) branch office	Jun. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) branch office	Sep. 30, 2022 USD ($)	Nov. 09, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Number of offices | office		32			32
Number of banking offices | branch		26			26
Change in fair value of derivative instruments		$ 46,186	$ 10	$ 39	$ 46,172	$ 224
Derivatives asset, notional amount		5,233,632			5,233,632				$ 39,579
Banc of California, NA
Business Acquisition [Line Items]
Contingent forward asset sale	$ 1,800,000
Interest rate swaps
Business Acquisition [Line Items]
Notional amount								$ 300,000
Derivatives asset, notional amount	3,100,000
Interest rate swaps | Banc of California, NA
Business Acquisition [Line Items]
Notional amount	3,100,000
Cost of hedged item	15,700
Change in fair value of derivative instruments		46,200
Contingent forward loan sale agreement
Business Acquisition [Line Items]
Change in fair value of derivative instruments		34,900			34,900
Derivatives asset, notional amount	$ 1,800,000	$ 1,803,869			$ 1,803,869				$ 0
Common Stock
Business Acquisition [Line Items]
Number of shares issued in transaction (in shares) | shares	21.8
Closing price of BOC's common stock (in USD per share) | $ / shares	$ 12.30
Non-Voting | Common Stock
Business Acquisition [Line Items]
Number of shares issued in transaction (in shares) | shares	10.8
Closing price of BOC's common stock (in USD per share) | $ / shares	$ 12.30
Subsequent Event | Banc of California, NA
Business Acquisition [Line Items]
Contingent forward asset sale							$ 1,800,000
PacWest Agreement and Plan Of Merger
Business Acquisition [Line Items]
Share conversion rate at merger	0.6569
PacWest Agreement and Plan Of Merger | Noncumulative Preferred Stock
Business Acquisition [Line Items]
Share conversion rate at merger	1
Non cumulative preferred stock, dividend rate (percent)	7.75%
Warburg Pincus LLC (“Warburg”), and Centerbridge Partners, L.P. And Affiliates (“Centerbridge”)
Business Acquisition [Line Items]
Total investment expected	$ 400,000
Warburg
Business Acquisition [Line Items]
Warrants to be issued (shares) | shares	15.9
Warrants and rights outstanding, term	7 years
Common stock, share price (in dollars per share) | $ / shares	$ 24.60
Number of trading days | tradingDay	20
Number of consecutive trading day period | consecutive-tradingDay	30
Centerbridge
Business Acquisition [Line Items]
Warrants issued (in shares) | shares	3
Exercise price of warrants for non-voting common stock (in dollars per share) | $ / shares	$ 15.375
Warrants and rights outstanding, term	7 years
Common stock, share price (in dollars per share) | $ / shares	$ 24.60
Number of trading days | tradingDay	20
Number of consecutive trading day period | consecutive-tradingDay	30

FAIR VALUES OF FINANCIAL INST_3

FAIR VALUES OF FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Thousands	Nov. 09, 2023	Sep. 30, 2023	Jul. 25, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivatives asset, notional amount		$ 5,233,632		$ 39,579
Banc of California, NA
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent forward asset sale			$ 1,800,000
Subsequent Event | Banc of California, NA
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent forward asset sale	$ 1,800,000
Contingent forward loan sale agreement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivatives asset, notional amount		$ 1,803,869	$ 1,800,000	$ 0

FAIR VALUES OF FINANCIAL INST_4

FAIR VALUES OF FINANCIAL INSTRUMENTS - Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 915,054	$ 868,297
Derivative assets	70,625	2,292
Derivative liabilities(1)	2,799	2,251
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
Derivative assets	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	915,054	868,297
Derivative assets	70,625	2,292
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Derivative assets	0	0
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	915,054	868,297
Derivative assets	70,625	2,292
SBA loan pool securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	8,699	11,187
SBA loan pool securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
SBA loan pool securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	8,699	11,187
SBA loan pool securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
SBA loan pool securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	8,699	11,187
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	76,844	40,206
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	76,844	40,206
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	76,844	40,206
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	85,832	93,191
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	85,832	93,191
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	85,832	93,191
Municipal securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0
Municipal securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0
Municipal securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0
Municipal securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0
Non-agency residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	104,960	80,492
Non-agency residential mortgage-backed securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Non-agency residential mortgage-backed securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	104,960	80,492
Non-agency residential mortgage-backed securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Non-agency residential mortgage-backed securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	104,960	80,492
Collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	483,804	476,603
Collateralized loan obligations | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Collateralized loan obligations | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	483,804	476,603
Collateralized loan obligations | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Collateralized loan obligations | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	483,804	476,603
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	154,915	166,618
Corporate debt securities | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Corporate debt securities | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	154,915	166,618
Corporate debt securities | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Corporate debt securities | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	154,915	166,618
Contingent forward loan sale agreement | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Contingent forward loan sale agreement | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	34,902
Contingent forward loan sale agreement | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Contingent forward loan sale agreement | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	34,902
Interest rate swaptions | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Interest rate swaptions | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	27,003
Interest rate swaptions | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Interest rate swaptions | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	27,003
Cash flow hedges | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Cash flow hedges | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	5,874
Cash flow hedges | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0
Cash flow hedges | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	5,874
Interest rate swaps and foreign exchange contracts | Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities(1)	0	0
Interest rate swaps and foreign exchange contracts | Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2,846	2,292
Derivative liabilities(1)	2,799	2,251
Interest rate swaps and foreign exchange contracts | Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities(1)	0	0
Interest rate swaps and foreign exchange contracts | Recurring | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2,846	2,292
Derivative liabilities(1)	$ 2,799	$ 2,251

FAIR VALUES OF FINANCIAL INST_5

FAIR VALUES OF FINANCIAL INSTRUMENTS - Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
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]
Individually evaluated loans:	$ 0	$ 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	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]
Individually evaluated loans:		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other real estate owned: Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	0
Significant Other Observable Inputs (Level 2) | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	0	0
Significant Other Observable Inputs (Level 2) | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	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]
Individually evaluated loans:		0
Significant Other Observable Inputs (Level 2) | Other real estate owned: Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	0
Significant Unobservable Inputs (Level 3) | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	756	7,115
Significant Unobservable Inputs (Level 3) | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	9	3,704
Significant Unobservable Inputs (Level 3) | Single family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:		3,600
Significant Unobservable Inputs (Level 3) | Other real estate owned: Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	882
Fair Value | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	756	7,115
Fair Value | SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	9	3,704
Fair Value | Single family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:		$ 3,600
Fair Value | Other real estate owned: Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans:	$ 882

FAIR VALUES OF FINANCIAL INST_6

FAIR VALUES OF FINANCIAL INSTRUMENTS - Gains and (Losses) on Non-Recurring Assets (Details) - Nonrecurring - Impaired Loans - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Single family residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) recognized on assets measured at fair value	$ 0	$ 135	$ (43)	$ (205)
Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) recognized on assets measured at fair value	(9,994)	(441)	(22,294)	(1,639)
SBA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) recognized on assets measured at fair value	(154)	(35)	(229)	(207)
Other consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) recognized on assets measured at fair value	(95)	0	(265)	(243)
Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) recognized on assets measured at fair value	0	0	(300)	0
Other real estate owned: Single family residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) recognized on assets measured at fair value	$ 0	$ 0	$ (165)	$ 0

FAIR VALUES OF FINANCIAL INST_7

FAIR VALUES OF FINANCIAL INSTRUMENTS - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial assets
Cash and cash equivalents	$ 310,985	$ 228,896
Securities held-to-maturity	250,285	262,460
Securities available-for-sale	915,054	868,297
Federal Home Loan Bank and other bank stock	60,336	57,092
Loans receivable, net of allowance for credit losses	6,261,148	6,526,916
Accrued interest receivable	39,494	37,942
Derivative assets	70,625	2,292
Financial liabilities
Deposits	6,631,697	7,107,357
Advances from Federal Home Loan Bank and Federal Reserve Bank borrowings	974,319	699,730
Other borrowings	185,802
Long-term debt	261,313	269,673
Derivative liabilities(1)	2,799	2,251
Accrued interest payable	21,187	7,004
Fair value Measurement Level 1
Financial assets
Cash and cash equivalents	310,985	228,896
Securities held-to-maturity	0	0
Securities available-for-sale	0	0
Federal Home Loan Bank and other bank stock	0	0
Loans receivable, net of allowance for credit losses	0	0
Accrued interest receivable	39,494	37,942
Derivative assets	0	0
Financial liabilities
Deposits	5,054,976	5,931,500
Advances from Federal Home Loan Bank and Federal Reserve Bank borrowings	0	0
Other borrowings	0
Long-term debt	0	0
Derivative liabilities(1)	0	0
Accrued interest payable	21,187	7,004
Fair value Measurement Level 2
Financial assets
Cash and cash equivalents	0	0
Securities held-to-maturity	250,285	262,460
Securities available-for-sale	915,054	868,297
Federal Home Loan Bank and other bank stock	60,336	57,092
Loans receivable, net of allowance for credit losses	0	0
Accrued interest receivable	0	0
Derivative assets	70,625	2,292
Financial liabilities
Deposits	1,576,721	1,175,857
Advances from Federal Home Loan Bank and Federal Reserve Bank borrowings	974,319	699,730
Other borrowings	185,802
Long-term debt	261,313	269,673
Derivative liabilities(1)	2,799	2,251
Accrued interest payable	0	0
Fair value Measurement Level 3
Financial assets
Cash and cash equivalents	0	0
Securities held-to-maturity	0	0
Securities available-for-sale	0	0
Federal Home Loan Bank and other bank stock	0	0
Loans receivable, net of allowance for credit losses	6,261,148	6,526,916
Accrued interest receivable	0	0
Derivative assets	0	0
Financial liabilities
Deposits	0	0
Advances from Federal Home Loan Bank and Federal Reserve Bank borrowings	0	0
Other borrowings	0
Long-term debt	0	0
Derivative liabilities(1)	0	0
Accrued interest payable	0	0
Carrying Value
Financial assets
Cash and cash equivalents	310,985	228,896
Securities held-to-maturity	328,287	328,641
Securities available-for-sale	915,054	868,297
Federal Home Loan Bank and other bank stock	60,336	57,092
Loans receivable, net of allowance for credit losses	6,886,642	7,029,078
Accrued interest receivable	39,494	37,942
Derivative assets	70,625	2,292
Financial liabilities
Deposits	6,640,630	7,120,921
Advances from Federal Home Loan Bank and Federal Reserve Bank borrowings	1,008,293	727,348
Other borrowings	185,802
Long-term debt	274,279	274,906
Derivative liabilities(1)	2,799	2,251
Accrued interest payable	$ 21,187	$ 7,004

INVESTMENT SECURITIES - Summary

INVESTMENT SECURITIES - Summary of Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Securities held-to-maturity:
Amortized cost	$ 328,287	$ 328,641
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(78,002)	(66,181)
Allowance for Credit Losses	0	0
Securities held-to-maturity	250,285	262,460
Securities available-for-sale:
Amortized cost	968,009	909,563
Gross Unrealized Gains	5	32
Gross Unrealized Losses	(51,924)	(41,298)
Allowance for Credit Losses	(1,036)	0
Available-for-sale securities	915,054	868,297
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Securities held-to-maturity:
Amortized cost	152,748	153,033
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(35,680)	(29,807)
Allowance for Credit Losses	0	0
Securities held-to-maturity	117,068	123,226
Securities available-for-sale:
Amortized cost	79,786	40,431
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(2,942)	(225)
Allowance for Credit Losses	0	0
Available-for-sale securities	76,844	40,206
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations
Securities held-to-maturity:
Amortized cost	61,337	61,404
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(15,688)	(11,946)
Allowance for Credit Losses	0	0
Securities held-to-maturity	45,649	49,458
Securities available-for-sale:
Amortized cost	93,696	99,075
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(7,864)	(5,884)
Allowance for Credit Losses	0	0
Available-for-sale securities	85,832	93,191
Municipal securities
Securities held-to-maturity:
Amortized cost	114,202	114,204
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(26,634)	(24,428)
Allowance for Credit Losses	0	0
Securities held-to-maturity	87,568	89,776
SBA loan pool securities
Securities available-for-sale:
Amortized cost	8,721	11,241
Gross Unrealized Gains	5	0
Gross Unrealized Losses	(27)	(54)
Allowance for Credit Losses	0	0
Available-for-sale securities	8,699	11,187
Non-agency residential mortgage-backed securities
Securities available-for-sale:
Amortized cost	120,062	90,832
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(15,102)	(10,340)
Allowance for Credit Losses	0	0
Available-for-sale securities	104,960	80,492
Collateralized loan obligations
Securities available-for-sale:
Amortized cost	489,940	492,203
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(6,136)	(15,600)
Allowance for Credit Losses	0	0
Available-for-sale securities	483,804	476,603
Corporate debt securities
Securities available-for-sale:
Amortized cost	175,804	175,781
Gross Unrealized Gains	0	32
Gross Unrealized Losses	(19,853)	(9,195)
Allowance for Credit Losses	(1,036)	0
Available-for-sale securities	$ 154,915	$ 166,618

INVESTMENT SECURITIES - Additio

INVESTMENT SECURITIES - Additional Information (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023 USD ($) security	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2023 USD ($) security	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-sale [Line Items]
Gross unrealized loss	$ 78,002			$ 78,002		$ 66,181
Accrued interest receivable on loans receivable	$ 11,800			$ 11,800		$ 9,200
Securities available for sale portfolio | security	86			86		77
Available for sale securities in unrealized loss position | security	84			84		76
Credit losses on available for sale securities		$ 0			$ 0
Credit losses on held to maturity securities		$ 0			$ 0
Investment Grade
Debt Securities, Available-for-sale [Line Items]
Available for sale securities in unrealized loss position | security	81			81
Collateral Pledged | FRB Discount Window
Debt Securities, Available-for-sale [Line Items]
Securities pledged	$ 525,700			$ 525,700		$ 356,500
Certain Longer Duration Fixed-Rate Mortgage Backed Securities and Municipal Securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost basis, transferred from the available-for-sale portfolio to the held-to-maturity portfolio			$ 346,000
Available-for-sale securities, accumulated gross unrealized loss, before tax			$ 16,600
Gross unrealized loss	15,000			15,000
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Credit losses on available for sale securities	$ 0			$ 1,000
Number of corporate debt securities | security	3			3

INVESTMENT SECURITIES - Proceed

INVESTMENT SECURITIES - Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 0		$ 0	$ 0	$ 209
Gross realized losses	0		0	0	(193)
Net realized gains on sales and calls	0	$ 0	0	0	16
Proceeds from sales and calls	$ 0		$ 0	$ 20,000	$ 56,145

INVESTMENT SECURITIES - Summa_2

INVESTMENT SECURITIES - Summary of Investment Securities with Unrealized Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Securities available-for-sale:
Less Than 12 Months	$ 234,397	$ 594,827
12 Months or Longer	662,025	270,524
Total	896,422	865,351
Gross Unrealized Losses
Less Than 12 Months	(8,756)	(28,967)
12 Months or Longer	(43,168)	(12,331)
Total	(51,924)	(41,298)
SBA loan pool securities
Securities available-for-sale:
Less Than 12 Months	0	2,260
12 Months or Longer	7,060	8,927
Total	7,060	11,187
Gross Unrealized Losses
Less Than 12 Months	0	(3)
12 Months or Longer	(27)	(51)
Total	(27)	(54)
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Securities available-for-sale:
Less Than 12 Months	76,844	40,206
12 Months or Longer	0	0
Total	76,844	40,206
Gross Unrealized Losses
Less Than 12 Months	(2,942)	(225)
12 Months or Longer	0	0
Total	(2,942)	(225)
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations
Securities available-for-sale:
Less Than 12 Months	50,151	76,441
12 Months or Longer	35,690	16,750
Total	85,841	93,191
Gross Unrealized Losses
Less Than 12 Months	(1,131)	(2,533)
12 Months or Longer	(6,733)	(3,351)
Total	(7,864)	(5,884)
Non-agency residential mortgage-backed securities
Securities available-for-sale:
Less Than 12 Months	67,769	80,492
12 Months or Longer	37,191	0
Total	104,960	80,492
Gross Unrealized Losses
Less Than 12 Months	(3,112)	(10,340)
12 Months or Longer	(11,990)	0
Total	(15,102)	(10,340)
Collateralized loan obligations
Securities available-for-sale:
Less Than 12 Months	24,859	235,936
12 Months or Longer	441,944	240,667
Total	466,803	476,603
Gross Unrealized Losses
Less Than 12 Months	(141)	(7,492)
12 Months or Longer	(5,995)	(8,108)
Total	(6,136)	(15,600)
Corporate debt securities
Securities available-for-sale:
Less Than 12 Months	14,774	159,492
12 Months or Longer	140,140	4,180
Total	154,914	163,672
Gross Unrealized Losses
Less Than 12 Months	(1,430)	(8,374)
12 Months or Longer	(18,423)	(821)
Total	$ (19,853)	$ (9,195)

INVESTMENT SECURITIES - Contrac

INVESTMENT SECURITIES - Contractual Maturity Schedule (Detail) $ in Thousands	Sep. 30, 2023 USD ($)
Amortized Cost
Within one year	$ 0
One to five years	0
Five to ten years	37,305
Greater than ten years	290,982
Total	328,287
Fair Value
Within one year	0
One to five years	0
Five to ten years	30,544
Greater than ten years	219,741
Total	250,285
Amortized Cost
Within one year	503,799
One to five years	171,294
Five to ten years	41,786
Greater than ten years	251,130
Total	968,009
Fair Value
Within one year	497,569
One to five years	150,580
Five to ten years	34,950
Greater than ten years	231,955
Total	$ 915,054

INVESTMENT SECURITIES - Composi

INVESTMENT SECURITIES - Composition, Repricing and Yield Information of Investment Securities Portfolio (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Fair Value
One year or less	$ 497,569
More than One Year through Five Years	150,580
More than Five Years through Ten Years	34,950
More than Ten Years	231,955
Total	$ 915,054
Weighted-Average Yield
One year or less	7.16%
More than One Year through Five Years	4.76%
More than Five Years through Ten Years	4.04%
More than Ten Years	4.74%
Total	5.97%
Amortized Cost
One year or less	$ 0
More than One Year through Five Years	0
More than Five Years through Ten Years	37,305
More than Ten Years	290,982
Total	$ 328,287
Weighted-Average Yield
One year or less	0%
More than One Year through Five Years	0%
More than Five Years through Ten Years	2.37%
More than Ten Years	2.69%
Total	2.65%
SBA loan pool securities
Fair Value
One year or less	$ 8,699
More than One Year through Five Years	0
More than Five Years through Ten Years	0
More than Ten Years	0
Total	$ 8,699
Weighted-Average Yield
One year or less	5.79%
More than One Year through Five Years	0%
More than Five Years through Ten Years	0%
More than Ten Years	0%
Total	5.79%
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
Fair Value
One year or less	$ 0
More than One Year through Five Years	0
More than Five Years through Ten Years	0
More than Ten Years	76,844
Total	$ 76,844
Weighted-Average Yield
One year or less	0%
More than One Year through Five Years	0%
More than Five Years through Ten Years	0%
More than Ten Years	5.52%
Total	5.52%
Amortized Cost
One year or less	$ 0
More than One Year through Five Years	0
More than Five Years through Ten Years	9,334
More than Ten Years	143,414
Total	$ 152,748
Weighted-Average Yield
One year or less	0%
More than One Year through Five Years	0%
More than Five Years through Ten Years	2.52%
More than Ten Years	2.70%
Total	2.69%
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations
Fair Value
One year or less	$ 5,066
More than One Year through Five Years	7,528
More than Five Years through Ten Years	23,087
More than Ten Years	50,151
Total	$ 85,832
Weighted-Average Yield
One year or less	5.98%
More than One Year through Five Years	3.72%
More than Five Years through Ten Years	3.25%
More than Ten Years	5.21%
Total	4.52%
Amortized Cost
One year or less	$ 0
More than One Year through Five Years	0
More than Five Years through Ten Years	0
More than Ten Years	61,337
Total	$ 61,337
Weighted-Average Yield
One year or less	0%
More than One Year through Five Years	0%
More than Five Years through Ten Years	0%
More than Ten Years	2.64%
Total	2.64%
Non-agency residential mortgage-backed securities
Fair Value
One year or less	$ 0
More than One Year through Five Years	0
More than Five Years through Ten Years	0
More than Ten Years	104,960
Total	$ 104,960
Weighted-Average Yield
One year or less	0%
More than One Year through Five Years	0%
More than Five Years through Ten Years	0%
More than Ten Years	4.02%
Total	4.02%
Collateralized loan obligations
Fair Value
One year or less	$ 483,804
More than One Year through Five Years	0
More than Five Years through Ten Years	0
More than Ten Years	0
Total	$ 483,804
Weighted-Average Yield
One year or less	7.20%
More than One Year through Five Years	0%
More than Five Years through Ten Years	0%
More than Ten Years	0%
Total	7.20%
Corporate debt securities
Fair Value
One year or less	$ 0
More than One Year through Five Years	143,052
More than Five Years through Ten Years	11,863
More than Ten Years	0
Total	$ 154,915
Weighted-Average Yield
One year or less	0%
More than One Year through Five Years	4.82%
More than Five Years through Ten Years	5.73%
More than Ten Years	0%
Total	4.89%
Municipal securities
Amortized Cost
One year or less	$ 0
More than One Year through Five Years	0
More than Five Years through Ten Years	27,971
More than Ten Years	86,231
Total	$ 114,202
Weighted-Average Yield
One year or less	0%
More than One Year through Five Years	0%
More than Five Years through Ten Years	2.32%
More than Ten Years	2.72%
Total	2.62%

LOANS AND ALLOWANCE FOR CREDI_3

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Loans Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Jul. 25, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 6,961,032			$ 7,115,038
Allowance for loan losses	(74,390)			(85,960)
Loans receivable, net	6,886,642			7,029,078
Loans that were moved during period	102,300
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(78,395)		$ (84,888)	(91,265)	$ (98,849)	$ (99,698)	$ (98,189)
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,942,964			1,845,960
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,173,332			1,259,651
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,654,272			1,689,943
Commercial | SBA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	56,600			68,137
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	262,715			243,553
Commercial | Warehouse Lending Balances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	647,700			602,500
Consumer | Single family residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,782,655	$ 1,800,000		1,920,806
Consumer | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 88,494			$ 86,988

LOANS AND ALLOWANCE FOR CREDI_4

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Participating Mortgage Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jul. 25, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance	$ 6,953,895		$ 7,107,897
Unamortized net premiums	16,571		18,319
Unamortized net deferred (fees) costs	(1,331)		(1,880)
Fair value adjustment	(8,103)		(9,298)
Loans receivable, net	6,961,032		7,115,038
Banc of California, NA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contingent forward asset sale		$ 1,800,000
PMB Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value adjustment	(7,100)		(8,000)
PMB Acquisition | PCD loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value adjustment	$ (3,600)		$ (4,100)

LOANS AND ALLOWANCE FOR CREDI_5

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Credit Quality Indicators Additional Information (Details)	9 Months Ended
	Sep. 30, 2023
Receivables [Abstract]
Loans delinquent	60 days

LOANS AND ALLOWANCE FOR CREDI_6

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Risk Categories for Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Jul. 25, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	$ 214,633		$ 1,998,375
Origination year - 1 year prior to current fiscal year	1,986,828		1,872,031
Origination year - 2 years prior to current fiscal year	1,808,910		400,895
Origination year - 3 years prior to current fiscal year	378,140		448,871
Origination year - 4 years prior to current fiscal year	411,021		463,840
Origination year - more than 4 years prior to current fiscal year	1,150,576		904,185
Revolving Loans Amortized Cost Basis	960,609		986,982
Revolving Loans Amortized Cost Basis Converted to Term	50,315		39,859
Loans receivable, net	6,961,032		7,115,038
Loans that were moved during period	102,300
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	210,723		1,989,255
Origination year - 1 year prior to current fiscal year	1,958,534		1,852,546
Origination year - 2 years prior to current fiscal year	1,783,265		391,307
Origination year - 3 years prior to current fiscal year	372,502		442,486
Origination year - 4 years prior to current fiscal year	391,182		436,519
Origination year - more than 4 years prior to current fiscal year	1,085,528		842,552
Revolving Loans Amortized Cost Basis	949,897		945,147
Revolving Loans Amortized Cost Basis Converted to Term	45,304		32,041
Loans receivable, net	6,796,935		6,931,853
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		1,716
Origination year - 1 year prior to current fiscal year	13,449		19,421
Origination year - 2 years prior to current fiscal year	15,461		4,039
Origination year - 3 years prior to current fiscal year	3,000		1,540
Origination year - 4 years prior to current fiscal year	10,370		3,580
Origination year - more than 4 years prior to current fiscal year	14,697		16,142
Revolving Loans Amortized Cost Basis	2,601		17,204
Revolving Loans Amortized Cost Basis Converted to Term	1,355		538
Loans receivable, net	60,933		64,180
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		7,404
Origination year - 1 year prior to current fiscal year	14,845		64
Origination year - 2 years prior to current fiscal year	10,184		5,549
Origination year - 3 years prior to current fiscal year	2,638		841
Origination year - 4 years prior to current fiscal year	9,469		23,741
Origination year - more than 4 years prior to current fiscal year	50,351		45,491
Revolving Loans Amortized Cost Basis	7,305		24,631
Revolving Loans Amortized Cost Basis Converted to Term	3,354		7,280
Loans receivable, net	98,146		115,001
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	3,910		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		4,004
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	806		0
Revolving Loans Amortized Cost Basis Converted to Term	302		0
Loans receivable, net	5,018		4,004
Commercial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	106,856		273,200
Origination year - 1 year prior to current fiscal year	277,997		189,780
Origination year - 2 years prior to current fiscal year	211,074		66,975
Origination year - 3 years prior to current fiscal year	65,571		57,507
Origination year - 4 years prior to current fiscal year	47,842		80,442
Origination year - more than 4 years prior to current fiscal year	252,685		178,651
Revolving Loans Amortized Cost Basis	943,350		972,618
Revolving Loans Amortized Cost Basis Converted to Term	37,589		26,787
Loans receivable, net	1,942,964		1,845,960
Commercial | Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	102,946		269,367
Origination year - 1 year prior to current fiscal year	269,069		170,513
Origination year - 2 years prior to current fiscal year	206,543		62,931
Origination year - 3 years prior to current fiscal year	65,557		53,001
Origination year - 4 years prior to current fiscal year	37,272		76,811
Origination year - more than 4 years prior to current fiscal year	229,611		164,394
Revolving Loans Amortized Cost Basis	935,283		932,464
Revolving Loans Amortized Cost Basis Converted to Term	34,257		19,803
Loans receivable, net	1,880,538		1,749,284
Commercial | Commercial and industrial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	5,368		19,203
Origination year - 2 years prior to current fiscal year	4,499		1,042
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	10,370		1
Origination year - more than 4 years prior to current fiscal year	10,231		11,528
Revolving Loans Amortized Cost Basis	2,252		17,142
Revolving Loans Amortized Cost Basis Converted to Term	1,354		483
Loans receivable, net	34,074		49,399
Commercial | Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		3,833
Origination year - 1 year prior to current fiscal year	3,560		64
Origination year - 2 years prior to current fiscal year	32		3,002
Origination year - 3 years prior to current fiscal year	14		502
Origination year - 4 years prior to current fiscal year	200		3,630
Origination year - more than 4 years prior to current fiscal year	12,843		2,729
Revolving Loans Amortized Cost Basis	5,009		23,012
Revolving Loans Amortized Cost Basis Converted to Term	1,978		6,501
Loans receivable, net	23,636		43,273
Commercial | Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	3,910		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		4,004
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	806		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	4,716		4,004
Commercial | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	58,551		348,298
Origination year - 1 year prior to current fiscal year	355,401		363,335
Origination year - 2 years prior to current fiscal year	306,113		60,564
Origination year - 3 years prior to current fiscal year	46,183		94,772
Origination year - 4 years prior to current fiscal year	87,440		155,791
Origination year - more than 4 years prior to current fiscal year	317,178		234,757
Revolving Loans Amortized Cost Basis	1,575		2,073
Revolving Loans Amortized Cost Basis Converted to Term	891		61
Loans receivable, net	1,173,332		1,259,651
Commercial | Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	58,551		348,298
Origination year - 1 year prior to current fiscal year	352,908		363,335
Origination year - 2 years prior to current fiscal year	297,564		60,564
Origination year - 3 years prior to current fiscal year	46,183		94,772
Origination year - 4 years prior to current fiscal year	80,265		155,790
Origination year - more than 4 years prior to current fiscal year	316,530		224,213
Revolving Loans Amortized Cost Basis	1,575		1,163
Revolving Loans Amortized Cost Basis Converted to Term	54		61
Loans receivable, net	1,153,630		1,248,196
Commercial | Commercial real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	1,953		0
Origination year - 2 years prior to current fiscal year	8,549		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		1,745
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	10,502		1,745
Commercial | Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	540		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	7,175		1
Origination year - more than 4 years prior to current fiscal year	648		8,799
Revolving Loans Amortized Cost Basis	0		910
Revolving Loans Amortized Cost Basis Converted to Term	837		0
Loans receivable, net	9,200		9,710
Commercial | Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	0		0
Commercial | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	23,474		626,186
Origination year - 1 year prior to current fiscal year	623,794		390,928
Origination year - 2 years prior to current fiscal year	396,291		157,633
Origination year - 3 years prior to current fiscal year	155,985		229,511
Origination year - 4 years prior to current fiscal year	224,196		120,956
Origination year - more than 4 years prior to current fiscal year	220,276		155,419
Revolving Loans Amortized Cost Basis	1,087		3
Revolving Loans Amortized Cost Basis Converted to Term	9,169		9,307
Loans receivable, net	1,654,272		1,689,943
Commercial | Multifamily | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	23,474		626,186
Origination year - 1 year prior to current fiscal year	623,794		390,928
Origination year - 2 years prior to current fiscal year	396,291		154,636
Origination year - 3 years prior to current fiscal year	152,985		229,511
Origination year - 4 years prior to current fiscal year	223,079		109,887
Origination year - more than 4 years prior to current fiscal year	205,461		138,063
Revolving Loans Amortized Cost Basis	1,087		3
Revolving Loans Amortized Cost Basis Converted to Term	9,169		9,307
Loans receivable, net	1,635,340		1,658,521
Commercial | Multifamily | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		2,997
Origination year - 3 years prior to current fiscal year	3,000		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	3,000		2,997
Commercial | Multifamily | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	1,117		11,069
Origination year - more than 4 years prior to current fiscal year	14,815		17,356
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	15,932		28,425
Commercial | Multifamily | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	0		0
Commercial | SBA
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		9,421
Origination year - 1 year prior to current fiscal year	9,231		15,468
Origination year - 2 years prior to current fiscal year	11,128		4,329
Origination year - 3 years prior to current fiscal year	3,767		6,238
Origination year - 4 years prior to current fiscal year	6,057		1,762
Origination year - more than 4 years prior to current fiscal year	24,791		28,785
Revolving Loans Amortized Cost Basis	414		1,231
Revolving Loans Amortized Cost Basis Converted to Term	1,212		903
Loans receivable, net	56,600		68,137
Commercial | SBA | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		9,421
Origination year - 1 year prior to current fiscal year	9,231		15,468
Origination year - 2 years prior to current fiscal year	10,456		4,009
Origination year - 3 years prior to current fiscal year	3,472		5,899
Origination year - 4 years prior to current fiscal year	5,197		1,176
Origination year - more than 4 years prior to current fiscal year	17,814		19,090
Revolving Loans Amortized Cost Basis	63		603
Revolving Loans Amortized Cost Basis Converted to Term	420		123
Loans receivable, net	46,653		55,789
Commercial | SBA | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	672		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		201
Origination year - more than 4 years prior to current fiscal year	555		598
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	1		1
Loans receivable, net	1,228		800
Commercial | SBA | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		320
Origination year - 3 years prior to current fiscal year	295		339
Origination year - 4 years prior to current fiscal year	860		385
Origination year - more than 4 years prior to current fiscal year	6,422		9,097
Revolving Loans Amortized Cost Basis	351		628
Revolving Loans Amortized Cost Basis Converted to Term	489		779
Loans receivable, net	8,417		11,548
Commercial | SBA | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	302		0
Loans receivable, net	302		0
Commercial | Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	3,303		85,430
Origination year - 1 year prior to current fiscal year	104,244		98,572
Origination year - 2 years prior to current fiscal year	102,157		27,704
Origination year - 3 years prior to current fiscal year	27,825		6,495
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	24,971		25,352
Revolving Loans Amortized Cost Basis	215		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	262,715		243,553
Commercial | Construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	3,303		85,430
Origination year - 1 year prior to current fiscal year	104,244		98,572
Origination year - 2 years prior to current fiscal year	102,157		27,704
Origination year - 3 years prior to current fiscal year	27,825		6,495
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	24,971		25,352
Revolving Loans Amortized Cost Basis	215		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	262,715		243,553
Commercial | Construction | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	0		0
Commercial | Construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	0		0
Commercial | Construction | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	0		0
Consumer | Single family residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		632,500
Origination year - 1 year prior to current fiscal year	598,922		797,962
Origination year - 2 years prior to current fiscal year	769,259		74,829
Origination year - 3 years prior to current fiscal year	71,523		48,821
Origination year - 4 years prior to current fiscal year	41,601		101,443
Origination year - more than 4 years prior to current fiscal year	297,457		265,251
Revolving Loans Amortized Cost Basis	3,893		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	1,782,655	$ 1,800,000	1,920,806
Consumer | Single family residential mortgage | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		627,213
Origination year - 1 year prior to current fiscal year	582,049		797,744
Origination year - 2 years prior to current fiscal year	757,366		72,658
Origination year - 3 years prior to current fiscal year	69,361		47,284
Origination year - 4 years prior to current fiscal year	41,601		89,492
Origination year - more than 4 years prior to current fiscal year	277,965		255,520
Revolving Loans Amortized Cost Basis	2,029		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	1,730,371		1,889,911
Consumer | Single family residential mortgage | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		1,716
Origination year - 1 year prior to current fiscal year	6,128		218
Origination year - 2 years prior to current fiscal year	1,741		0
Origination year - 3 years prior to current fiscal year	0		1,537
Origination year - 4 years prior to current fiscal year	0		3,378
Origination year - more than 4 years prior to current fiscal year	3,910		2,252
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	11,779		9,101
Consumer | Single family residential mortgage | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		3,571
Origination year - 1 year prior to current fiscal year	10,745		0
Origination year - 2 years prior to current fiscal year	10,152		2,171
Origination year - 3 years prior to current fiscal year	2,162		0
Origination year - 4 years prior to current fiscal year	0		8,573
Origination year - more than 4 years prior to current fiscal year	15,582		7,479
Revolving Loans Amortized Cost Basis	1,864		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	40,505		21,794
Consumer | Single family residential mortgage | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	0		0
Consumer | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	22,449		23,340
Origination year - 1 year prior to current fiscal year	17,239		15,986
Origination year - 2 years prior to current fiscal year	12,888		8,861
Origination year - 3 years prior to current fiscal year	7,286		5,527
Origination year - 4 years prior to current fiscal year	3,885		3,446
Origination year - more than 4 years prior to current fiscal year	13,218		15,970
Revolving Loans Amortized Cost Basis	10,075		11,057
Revolving Loans Amortized Cost Basis Converted to Term	1,454		2,801
Loans receivable, net	88,494		86,988
Consumer | Other consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	22,449		23,340
Origination year - 1 year prior to current fiscal year	17,239		15,986
Origination year - 2 years prior to current fiscal year	12,888		8,805
Origination year - 3 years prior to current fiscal year	7,119		5,524
Origination year - 4 years prior to current fiscal year	3,768		3,363
Origination year - more than 4 years prior to current fiscal year	13,176		15,920
Revolving Loans Amortized Cost Basis	9,645		10,914
Revolving Loans Amortized Cost Basis Converted to Term	1,404		2,747
Loans receivable, net	87,688		86,599
Consumer | Other consumer | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		3
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	1		19
Revolving Loans Amortized Cost Basis	349		62
Revolving Loans Amortized Cost Basis Converted to Term	0		54
Loans receivable, net	350		138
Consumer | Other consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		56
Origination year - 3 years prior to current fiscal year	167		0
Origination year - 4 years prior to current fiscal year	117		83
Origination year - more than 4 years prior to current fiscal year	41		31
Revolving Loans Amortized Cost Basis	81		81
Revolving Loans Amortized Cost Basis Converted to Term	50		0
Loans receivable, net	456		251
Consumer | Other consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Origination year - current fiscal year	0		0
Origination year - 1 year prior to current fiscal year	0		0
Origination year - 2 years prior to current fiscal year	0		0
Origination year - 3 years prior to current fiscal year	0		0
Origination year - 4 years prior to current fiscal year	0		0
Origination year - more than 4 years prior to current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Amortized Cost Basis Converted to Term	0		0
Loans receivable, net	$ 0		$ 0

LOANS AND ALLOWANCE FOR CREDI_7

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Aging of Recorded Investment in Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jul. 25, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 6,961,032		$ 7,115,038
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	27,942		41,101
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	22,616		5,565
Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Loans receivable	39,692		44,554
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	90,250		91,220
Current
Financing Receivable, Past Due [Line Items]
Loans receivable	6,870,782		7,023,818
Commercial | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans receivable	1,942,964		1,845,960
Commercial | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans receivable	1,173,332		1,259,651
Commercial | Multifamily
Financing Receivable, Past Due [Line Items]
Loans receivable	1,654,272		1,689,943
Commercial | SBA
Financing Receivable, Past Due [Line Items]
Loans receivable	56,600		68,137
Commercial | Construction
Financing Receivable, Past Due [Line Items]
Loans receivable	262,715		243,553
Commercial | Loans and Finance Receivables, Traditional | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans receivable	1,942,964		1,845,960
Commercial | Loans and Finance Receivables, Traditional | Commercial and industrial | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	452		4,002
Commercial | Loans and Finance Receivables, Traditional | Commercial and industrial | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	2,452		481
Commercial | Loans and Finance Receivables, Traditional | Commercial and industrial | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Loans receivable	9,210		13,833
Commercial | Loans and Finance Receivables, Traditional | Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	12,114		18,316
Commercial | Loans and Finance Receivables, Traditional | Commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Loans receivable	1,930,850		1,827,644
Commercial | Loans and Finance Receivables, Traditional | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans receivable	1,173,332		1,259,651
Commercial | Loans and Finance Receivables, Traditional | Commercial real estate | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,326		311
Commercial | Loans and Finance Receivables, Traditional | Commercial real estate | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	3,569		0
Commercial | Loans and Finance Receivables, Traditional | Commercial real estate | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,324		910
Commercial | Loans and Finance Receivables, Traditional | Commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	6,219		1,221
Commercial | Loans and Finance Receivables, Traditional | Commercial real estate | Current
Financing Receivable, Past Due [Line Items]
Loans receivable	1,167,113		1,258,430
Commercial | Loans and Finance Receivables, Traditional | Multifamily
Financing Receivable, Past Due [Line Items]
Loans receivable	1,654,272		1,689,943
Commercial | Loans and Finance Receivables, Traditional | Multifamily | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0		0
Commercial | Loans and Finance Receivables, Traditional | Multifamily | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0		0
Commercial | Loans and Finance Receivables, Traditional | Multifamily | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,118		0
Commercial | Loans and Finance Receivables, Traditional | Multifamily | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,118		0
Commercial | Loans and Finance Receivables, Traditional | Multifamily | Current
Financing Receivable, Past Due [Line Items]
Loans receivable	1,653,154		1,689,943
Commercial | Loans and Finance Receivables, Traditional | SBA
Financing Receivable, Past Due [Line Items]
Loans receivable	56,600		68,137
Commercial | Loans and Finance Receivables, Traditional | SBA | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	273		287
Commercial | Loans and Finance Receivables, Traditional | SBA | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	481		0
Commercial | Loans and Finance Receivables, Traditional | SBA | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Loans receivable	7,193		10,299
Commercial | Loans and Finance Receivables, Traditional | SBA | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	7,947		10,586
Commercial | Loans and Finance Receivables, Traditional | SBA | Current
Financing Receivable, Past Due [Line Items]
Loans receivable	48,653		57,551
Commercial | Loans and Finance Receivables, Traditional | Construction
Financing Receivable, Past Due [Line Items]
Loans receivable	262,715		243,553
Commercial | Loans and Finance Receivables, Traditional | Construction | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0		0
Commercial | Loans and Finance Receivables, Traditional | Construction | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0		0
Commercial | Loans and Finance Receivables, Traditional | Construction | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Loans receivable	0		0
Commercial | Loans and Finance Receivables, Traditional | Construction | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0		0
Commercial | Loans and Finance Receivables, Traditional | Construction | Current
Financing Receivable, Past Due [Line Items]
Loans receivable	262,715		243,553
Consumer | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable	1,782,655	$ 1,800,000	1,920,806
Consumer | Other consumer
Financing Receivable, Past Due [Line Items]
Loans receivable	88,494		86,988
Consumer | Loans and Finance Receivables, Traditional | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable	1,782,655		1,920,806
Consumer | Loans and Finance Receivables, Traditional | Single family residential mortgage | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	25,437		36,338
Consumer | Loans and Finance Receivables, Traditional | Single family residential mortgage | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	16,064		5,068
Consumer | Loans and Finance Receivables, Traditional | Single family residential mortgage | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Loans receivable	20,702		19,431
Consumer | Loans and Finance Receivables, Traditional | Single family residential mortgage | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	62,203		60,837
Consumer | Loans and Finance Receivables, Traditional | Single family residential mortgage | Current
Financing Receivable, Past Due [Line Items]
Loans receivable	1,720,452		1,859,969
Consumer | Loans and Finance Receivables, Traditional | Other consumer
Financing Receivable, Past Due [Line Items]
Loans receivable	88,494		86,988
Consumer | Loans and Finance Receivables, Traditional | Other consumer | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	454		163
Consumer | Loans and Finance Receivables, Traditional | Other consumer | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	50		16
Consumer | Loans and Finance Receivables, Traditional | Other consumer | Greater than 89 Days Past due
Financing Receivable, Past Due [Line Items]
Loans receivable	145		81
Consumer | Loans and Finance Receivables, Traditional | Other consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	649		260
Consumer | Loans and Finance Receivables, Traditional | Other consumer | Current
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 87,845		$ 86,728

LOANS AND ALLOWANCE FOR CREDI_8

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Composition of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	$ 60,556	$ 55,251
Nonaccrual Loans with no ACL	54,974	34,864
Commercial | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	9,713	22,613
Nonaccrual Loans with no ACL	4,218	10,959
Commercial | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	1,864	910
Nonaccrual Loans with no ACL	1,864	910
Commercial | Multifamily
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	1,118	0
Nonaccrual Loans with no ACL	1,118	0
Commercial | SBA
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	7,569	10,417
Nonaccrual Loans with no ACL	7,481	5,613
Consumer | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	39,836	21,116
Nonaccrual Loans with no ACL	39,836	17,187
Consumer | Other consumer
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	456	195
Nonaccrual Loans with no ACL	$ 457	$ 195

LOANS AND ALLOWANCE FOR CREDI_9

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Nonaccrual Loans and Leases Additional Information (Details) $ in Thousands	Sep. 30, 2023 USD ($) loan	Dec. 31, 2022 USD ($) loan
Financing Receivable, Past Due [Line Items]
Loans 90 days past due and still accruing	$ 0	$ 0
Other real estate owned, net	882	0
Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Other real estate owned, net	$ 900	$ 0
Consumer | Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Number of loans in process of foreclosure | loan	8	9
Loans in process of foreclosure	$ 7,700	$ 11,700

LOANS AND ALLOWANCE FOR CRED_10

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses-Loans Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded loan commitments		$ 74,390	$ 85,960
Allowance for loan losses recovery from settlement of charged off	$ 31,300
Accrued interest receivable on loans receivable		11,800	9,200
Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable on loans receivable		26,600	28,600
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded loan commitments		$ 4,000	$ 5,300

LOANS AND ALLOWANCE FOR CRED_11

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses-Loans (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period				$ 85,960
Provision for (reversal of) credit losses	$ 5,000	$ 1,900	$ 0	8,900	$ (31,542)
Balance at end of period	74,390			74,390
Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	84,888		99,698	91,265	98,189
Charge-offs	(11,644)		(912)	(21,260)	(1,637)
Recoveries	151		63	526	33,839
Net (charge-offs) recoveries	(11,493)		(849)	(20,734)	32,202
Provision for (reversal of) credit losses	5,000		0	7,864	(31,542)
Balance at end of period	78,395	84,888	98,849	78,395	98,849
Allowance for Loan Losses
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	80,883		93,793	85,960	92,584
Charge-offs	(11,644)		(912)	(21,260)	(1,637)
Recoveries	151		63	526	33,839
Net (charge-offs) recoveries	(11,493)		(849)	(20,734)	32,202
Provision for (reversal of) credit losses	5,000		(500)	9,164	(32,342)
Balance at end of period	74,390	80,883	92,444	74,390	92,444
Allowance for Loan Losses | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	80,883		93,793	85,960	92,584
Charge-offs	(11,644)		(912)	(21,260)	(1,637)
Recoveries	151		63	526	33,839
Net (charge-offs) recoveries	(11,493)		(849)	(20,734)	32,202
Provision for (reversal of) credit losses	5,000		(500)	9,164	(32,342)
Balance at end of period	74,390	80,883	92,444	74,390	92,444
Reserve for Unfunded Loan Commitments | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	4,005		5,905	5,305	5,605
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Net (charge-offs) recoveries	0		0	0	0
Provision for (reversal of) credit losses	0		500	(1,300)	800
Balance at end of period	$ 4,005	$ 4,005	$ 6,405	$ 4,005	$ 6,405

LOANS AND ALLOWANCE FOR CRED_12

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses and Recorded Investment Excluding Accrued Interest in Loans (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period				$ 85,960
Provision for (reversal of) credit losses - loans	$ 5,000	$ 1,900	$ 0	8,900	$ (31,542)
Balance at end of period	74,390			74,390
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	84,888		99,698	91,265	98,189
Charge-offs	(11,644)		(912)	(21,260)	(1,637)
Recoveries	151		63	526	33,839
Net (charge-offs) recoveries	(11,493)		(849)	(20,734)	32,202
Provision for (reversal of) credit losses - loans	5,000		0	7,864	(31,542)
Balance at end of period	78,395	84,888	98,849	78,395	98,849
Allowance for Loan Losses
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	80,883		93,793	85,960	92,584
Charge-offs	(11,644)		(912)	(21,260)	(1,637)
Recoveries	151		63	526	33,839
Net (charge-offs) recoveries	(11,493)		(849)	(20,734)	32,202
Provision for (reversal of) credit losses - loans	5,000		(500)	9,164	(32,342)
Balance at end of period	74,390	80,883	92,444	74,390	92,444
Allowance for Loan Losses | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	80,883		93,793	85,960	92,584
Charge-offs	(11,644)		(912)	(21,260)	(1,637)
Recoveries	151		63	526	33,839
Net (charge-offs) recoveries	(11,493)		(849)	(20,734)	32,202
Provision for (reversal of) credit losses - loans	5,000		(500)	9,164	(32,342)
Balance at end of period	74,390	80,883	92,444	74,390	92,444
Allowance for Loan Losses | Commercial | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	32,823		41,413	34,156	33,557
Charge-offs	(11,363)		(867)	(19,074)	(1,187)
Recoveries	22		48	61	32,865
Net (charge-offs) recoveries	(11,341)		(819)	(19,013)	31,678
Provision for (reversal of) credit losses - loans	8,160		(1,769)	14,499	(26,410)
Balance at end of period	29,642	32,823	38,825	29,642	38,825
Allowance for Loan Losses | Commercial | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	15,767		15,742	15,977	21,727
Charge-offs	0		0	(300)	0
Recoveries	0		3	0	3
Net (charge-offs) recoveries	0		3	(300)	3
Provision for (reversal of) credit losses - loans	(2,594)		1,091	(2,504)	(4,894)
Balance at end of period	13,173	15,767	16,836	13,173	16,836
Allowance for Loan Losses | Commercial | Multifamily
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	14,697		15,678	14,696	17,893
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Net (charge-offs) recoveries	0		0	0	0
Provision for (reversal of) credit losses - loans	(734)		275	(733)	(1,940)
Balance at end of period	13,963	14,697	15,953	13,963	15,953
Allowance for Loan Losses | Commercial | SBA
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	1,387		3,033	2,648	3,017
Charge-offs	(169)		(45)	(1,250)	(197)
Recoveries	6		1	316	762
Net (charge-offs) recoveries	(163)		(44)	(934)	565
Provision for (reversal of) credit losses - loans	(142)		(29)	(632)	(622)
Balance at end of period	1,082	1,387	2,960	1,082	2,960
Allowance for Loan Losses | Commercial | Construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	6,053		4,255	5,850	5,622
Charge-offs	0		0	0	0
Recoveries	0		0	0	0
Net (charge-offs) recoveries	0		0	0	0
Provision for (reversal of) credit losses - loans	116		1,168	319	(199)
Balance at end of period	6,169	6,053	5,423	6,169	5,423
Allowance for Loan Losses | Consumer | Single Family Residential Mortgage
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	9,518		12,805	12,050	9,608
Charge-offs	0		0	(372)	(10)
Recoveries	1		1	3	193
Net (charge-offs) recoveries	1		1	(369)	183
Provision for (reversal of) credit losses - loans	267		(959)	(1,895)	2,056
Balance at end of period	9,786	9,518	11,847	9,786	11,847
Allowance for Loan Losses | Consumer | Other Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	638		867	583	1,160
Charge-offs	(112)		0	(264)	(243)
Recoveries	122		10	146	16
Net (charge-offs) recoveries	10		10	(118)	(227)
Provision for (reversal of) credit losses - loans	(73)		(277)	110	(333)
Balance at end of period	$ 575	$ 638	$ 600	$ 575	$ 600

LOANS AND ALLOWANCE FOR CRED_13

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Gross Charge-offs (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 0	$ 0
2022	(1,828)	(7,561)
2021	(480)	(1,629)
2020	(5,997)	(6,428)
2019	0	0
Prior	(3,339)	(5,642)
Total	(11,644)	(21,260)
Commercial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	(1,828)	(7,545)
2021	(368)	(1,453)
2020	(5,997)	(5,997)
2019	0	0
Prior	(3,170)	(4,079)
Total	(11,363)	(19,074)
Commercial | SBA
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	(64)
2020	0	0
2019	0	0
Prior	(169)	(1,186)
Total	(169)	(1,250)
Commercial | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023		0
2022		0
2021		0
2020		0
2019		0
Prior		(300)
Total		(300)
Consumer | Other Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	(16)
2021	(112)	(112)
2020	0	(59)
2019	0	0
Prior	0	(77)
Total	$ (112)	(264)
Consumer | Single Family Residential Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2023		0
2022		0
2021		0
2020		(372)
2019		0
Prior		0
Total		$ (372)

LOANS AND ALLOWANCE FOR CRED_14

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jul. 25, 2023	Dec. 31, 2022
Financing Receivable, Impaired [Line Items]
Total loans	$ 6,961,032		$ 7,115,038
Collateral Pledged
Financing Receivable, Impaired [Line Items]
Total loans	57,504		51,174
Commercial
Financing Receivable, Impaired [Line Items]
Total loans	2,457		933
Residential
Financing Receivable, Impaired [Line Items]
Total loans	41,302		26,045
Business Assets
Financing Receivable, Impaired [Line Items]
Total loans	13,419		24,083
Automobile
Financing Receivable, Impaired [Line Items]
Total loans	326		113
Commercial | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Total loans	1,942,964		1,845,960
Commercial | Commercial real estate
Financing Receivable, Impaired [Line Items]
Total loans	1,173,332		1,259,651
Commercial | Multifamily
Financing Receivable, Impaired [Line Items]
Total loans	1,654,272		1,689,943
Collateral dependent loans	1,118
Commercial | SBA
Financing Receivable, Impaired [Line Items]
Total loans	56,600		68,137
Commercial | Collateral Pledged | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Total loans	6,661		18,392
Commercial | Collateral Pledged | Commercial real estate
Financing Receivable, Impaired [Line Items]
Total loans	1,864		910
Commercial | Collateral Pledged | SBA
Financing Receivable, Impaired [Line Items]
Total loans	7,569		10,416
Commercial | Commercial | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Commercial | Commercial | Commercial real estate
Financing Receivable, Impaired [Line Items]
Total loans	1,324		910
Commercial | Commercial | Multifamily
Financing Receivable, Impaired [Line Items]
Collateral dependent loans	1,118
Commercial | Commercial | SBA
Financing Receivable, Impaired [Line Items]
Total loans	15		23
Commercial | Residential | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Commercial | Residential | Commercial real estate
Financing Receivable, Impaired [Line Items]
Total loans	540		0
Commercial | Residential | Multifamily
Financing Receivable, Impaired [Line Items]
Collateral dependent loans	0
Commercial | Residential | SBA
Financing Receivable, Impaired [Line Items]
Total loans	796		4,702
Commercial | Business Assets | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Total loans	6,661		18,392
Commercial | Business Assets | Commercial real estate
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Commercial | Business Assets | Multifamily
Financing Receivable, Impaired [Line Items]
Collateral dependent loans	0
Commercial | Business Assets | SBA
Financing Receivable, Impaired [Line Items]
Total loans	6,758		5,691
Commercial | Automobile | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Commercial | Automobile | Commercial real estate
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Commercial | Automobile | Multifamily
Financing Receivable, Impaired [Line Items]
Collateral dependent loans	0
Commercial | Automobile | SBA
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Consumer | Single family residential mortgage
Financing Receivable, Impaired [Line Items]
Total loans	1,782,655	$ 1,800,000	1,920,806
Consumer | Other consumer
Financing Receivable, Impaired [Line Items]
Total loans	88,494		86,988
Consumer | Collateral Pledged | Single family residential mortgage
Financing Receivable, Impaired [Line Items]
Total loans	39,836		21,262
Consumer | Collateral Pledged | Other consumer
Financing Receivable, Impaired [Line Items]
Total loans	456		194
Consumer | Commercial | Single family residential mortgage
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Consumer | Commercial | Other consumer
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Consumer | Residential | Single family residential mortgage
Financing Receivable, Impaired [Line Items]
Total loans	39,836		21,262
Consumer | Residential | Other consumer
Financing Receivable, Impaired [Line Items]
Total loans	130		81
Consumer | Business Assets | Single family residential mortgage
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Consumer | Business Assets | Other consumer
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Consumer | Automobile | Single family residential mortgage
Financing Receivable, Impaired [Line Items]
Total loans	0		0
Consumer | Automobile | Other consumer
Financing Receivable, Impaired [Line Items]
Total loans	$ 326		$ 113

LOANS AND ALLOWANCE FOR CRED_15

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loan Modifications to Borrowers Experiencing Financial Difficulty (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 7,651
% of total class of loans	0.10%
Interest rate reduction:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 2,492
% of total class of loans	0%
Term extension:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 595
% of total class of loans	0%
Combination - principal reduction and payment delays:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 3,910
% of total class of loans	0.10%
Combination - term extension and interest rate reduction
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 654
% of total class of loans	0%
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 4,564
% of total class of loans	0.20%
Commercial and industrial | Interest rate reduction:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 0
% of total class of loans	0%
Commercial and industrial | Term extension:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 0
% of total class of loans	0%
Commercial and industrial | Combination - principal reduction and payment delays:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 3,910
% of total class of loans	0.20%
Commercial and industrial | Combination - term extension and interest rate reduction
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 654
% of total class of loans	0%
Single family residential mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 3,087
% of total class of loans	0.20%
Single family residential mortgage | Interest rate reduction:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 2,492
% of total class of loans	0.10%
Single family residential mortgage | Term extension:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 595
% of total class of loans	0%
Single family residential mortgage | Combination - principal reduction and payment delays:
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 0
% of total class of loans	0%
Single family residential mortgage | Combination - term extension and interest rate reduction
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 0
% of total class of loans	0%

LOANS AND ALLOWANCE FOR CRED_16

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Aging of Loans Modified to Borrowers Experiencing Financial Difficulty (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 7,651
30 - 59 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	309
60 - 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	0
Greater than 89 Days Past due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	3,910
Total Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	4,219
Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	3,432
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	3,900
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	4,564
Commercial | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	4,564
Commercial | Commercial and industrial | 30 - 59 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	0
Commercial | Commercial and industrial | 60 - 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	0
Commercial | Commercial and industrial | Greater than 89 Days Past due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	3,910
Commercial | Commercial and industrial | Total Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	3,910
Commercial | Commercial and industrial | Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	654
Consumer | Single family residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	3,087
Consumer | Single family residential mortgage | 30 - 59 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	309
Consumer | Single family residential mortgage | 60 - 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	0
Consumer | Single family residential mortgage | Greater than 89 Days Past due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	0
Consumer | Single family residential mortgage | Total Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	309
Consumer | Single family residential mortgage | Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 2,778

LOANS AND ALLOWANCE FOR CRED_17

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Troubled Debt Restructurings Additional Information (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) loan loans	Dec. 31, 2022 USD ($) loan
Financing Receivable, Past Due [Line Items]
Number of loans classified as TDRs | loan	7	15
Aggregate balance	$ 3,500	$ 16,100
Loans receivable	7,651
Accruing TDRs	100	2,700
Non-accruing TDRs	3,400	$ 13,400
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans receivable	3,900
Commercial
Financing Receivable, Past Due [Line Items]
Loans receivable	4,564
Modified loans paid down	$ 7,800
Modified loans paid down, number of loans | loans	3
Charge offs on modified loans	$ 1,200
Commercial | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 4,564

LOANS AND ALLOWANCE FOR CRED_18

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Purchases, Sales, and Transfers (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Receivables [Abstract]
Transfers of loans to held-for-sale	$ 0
Purchases of loans (excluding loans held-for-sale)		$ 172,700,000	$ 61,400,000	$ 814,300,000
Sales of loans	$ 0	$ 0	$ 0	$ 0

LOANS AND ALLOWANCE FOR CRED_19

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Non Traditional Mortgage Loans Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 6,961,032	$ 7,115,038
NTM Loans | Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage to total loans and leases (percent)	11.40%	12.10%
NTM Loans | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 792,000	$ 862,300
Decrease in Non-Traditional Mortgage portfolio loans	70,400
NTM Loans | Consumer | Non-performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 15,300	$ 3,000
Weighted average LTV (percent)	60%
NTM Loans | Consumer | Interest Only | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loan term (in years)	40 years
Mortgage loan, flexible initial term (in years)	10 years
NTM Loans | Consumer | Interest Only | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loan, flexible initial term (in years)	1 year
NTM Loans | Consumer | Loan Portfolio | Loan Portfolio Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Decrease in Non-Traditional Mortgage portfolio loans (percent)	8.20%

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLES - Additional Information (Details) - USD ($)		9 Months Ended
	Oct. 01, 2022	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Goodwill		$ 114,312,000	$ 114,312,000	$ 114,312,000	$ 114,312,000	$ 95,127,000	$ 94,301,000
Goodwill impairment	$ 0
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Intangible assets, weighted average useful life		6 years 2 months 12 days
Core deposit intangibles | Minimum
Finite-Lived Intangible Assets [Line Items]
Amortization period of other intangible assets		3 years
Core deposit intangibles | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization period of other intangible assets		10 years
Deepstack Technologies, LLC
Finite-Lived Intangible Assets [Line Items]
Goodwill					$ 18,200,000

GOODWILL AND OTHER INTANGIBLES-

GOODWILL AND OTHER INTANGIBLES- Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 114,312	$ 95,127	$ 114,312	$ 94,301
Goodwill from business combination	0	18,190	0	18,190
Goodwill adjustments for purchase accounting	0	995	0	1,821
Goodwill, end of period	$ 114,312	$ 114,312	$ 114,312	$ 114,312

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLES - Schedule of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 6,142	$ 7,526
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Other intangibles	3,078	3,932
Developed technology
Finite-Lived Intangible Assets [Line Items]
Other intangibles	2,216	2,637
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 848	$ 957

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLES - Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other intangibles:
Balance, beginning of period	$ 38,778		$ 34,978	$ 38,778	$ 35,958
Other intangibles from business combination	0		3,800	0	3,800
Purchase accounting adjustments	0		0	0	(980)
Balance, end of period	38,778	$ 38,778	38,778	38,778	38,778
Accumulated amortization:
Balance, beginning of period	32,175		30,301	31,252	29,547
Amortization of other intangibles	461	462	396	1,384	1,150
Balance, end of period	32,636	$ 32,175	30,697	32,636	30,697
Total	$ 6,142		$ 8,081	$ 6,142	$ 8,081

GOODWILL AND OTHER INTANGIBLE_5

GOODWILL AND OTHER INTANGIBLES - Estimated Future Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2023	$ 415
2024	1,425
2025	1,107
2026	1,013
2027	811
2028 and After	1,371
Total	$ 6,142	$ 8,081

FEDERAL HOME LOAN BANK ADVANC_3

FEDERAL HOME LOAN BANK ADVANCES, FEDERAL RESERVE BANK BORROWINGS AND OTHER BORROWINGS - Summary of Advances From the FHLB (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fixed rate:
Outstanding balance	$ 811,000	$ 711,000
Variable rate:
Outstanding balance	$ 0	$ 20,000
Weighted average interest rate (percent)	0%	4.59%
Unamortized debt issuance costs	$ 2,700	$ 3,700
Minimum
Fixed rate:
Interest rate (percent)	0.64%	0.64%
Maximum
Fixed rate:
Interest rate (percent)	3.70%	3.70%
Weighted average (percent)
Fixed rate:
Interest rate (percent)	3.04%	2.97%

FEDERAL HOME LOAN BANK ADVANC_4

FEDERAL HOME LOAN BANK ADVANCES, FEDERAL RESERVE BANK BORROWINGS AND OTHER BORROWINGS - Additional Information (Details)	3 Months Ended	9 Months Ended
	Mar. 31, 2023 USD ($)	Sep. 30, 2023 USD ($) bank	Dec. 31, 2022 USD ($) bank
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Line of credit facility		$ 185,800,000	$ 0
Investment in capital stock of the federal reserve		$ 34,600,000	$ 34,500,000
Number of correspondent banks | bank		6	6
Other borrowings		$ 185,802,000	$ 0
Securities sold under repurchase agreements		0	0
Revolving Credit Facility
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Line of credit facility			50,000,000
Other borrowings		0	0
Unsecured Federal Funds Line of Credit | Line of Credit
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Line of credit facility		290,000,000	210,000,000
Borrowings outstanding		0	0
Federal Reserve Bank Advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Line of credit facility		$ 1,380,000,000
Federal Reserve Bank Advances | BTFP Program
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Term of borrowings under the program		1 year
Spread on variable rate (percent)		0.10%
Borrowings outstanding		$ 0
Federal Reserve Bank Advances | FRB Discount Window and BIC Programs
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Borrowings during the period	$ 0	200,000,000
Borrowings outstanding		200,000,000	0
Federal Reserve Bank Advances | Collateralized loan obligations
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Advances from FHLB collateralized		1,280,000,000
Collateral on line of credit facility		505,800,000
Federal Home Loan Bank of San Francisco
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB stock		25,700,000	$ 22,600,000
Federal Home Loan Bank of San Francisco | Real Estate Loans
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Secured borrowing capacity from FHLB		2,420,000,000
Amount of additional available borrowing		1,190,000,000
Advances from FHLB collateralized		3,630,000,000
Term Advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB advances		$ 611,000,000
Weighted average life		2 years 9 months
Weighted average interest rate (percent)		2.91%
Putable Advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB advances		$ 200,000,000
Weighted average life		4 years 3 months
Weighted average interest rate (percent)		3.44%

LONG-TERM DEBT - Summary of Lon

LONG-TERM DEBT - Summary of Long-Term Debt (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Par Value	$ 276,527	$ 277,527
Unamortized Debt Issuance Cost and Discount	$ (2,248)	(2,621)
Senior Notes | Senior Notes
Debt Instrument [Line Items]
Stated interest rate	5.25%
Par Value	$ 174,000	175,000
Unamortized Debt Issuance Cost and Discount	$ (520)	(722)
Senior Notes | Subordinated notes
Debt Instrument [Line Items]
Stated interest rate	4.375%
Par Value	$ 85,000	85,000
Unamortized Debt Issuance Cost and Discount	$ (1,728)	(1,899)
Senior Notes | Subordinated notes | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	4.195%
Senior Notes | PMB Statutory Trust III, junior subordinated debentures
Debt Instrument [Line Items]
Par Value	$ 7,217	7,217
Unamortized Debt Issuance Cost and Discount	$ 0	0
Senior Notes | PMB Statutory Trust III, junior subordinated debentures | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	3.40%
Senior Notes | PMB Capital Trust III, junior subordinated debentures
Debt Instrument [Line Items]
Par Value	$ 10,310	10,310
Unamortized Debt Issuance Cost and Discount	$ 0	$ 0
Senior Notes | PMB Capital Trust III, junior subordinated debentures | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	2%

LONG-TERM DEBT - Additional Inf

LONG-TERM DEBT - Additional Information (Detail) - Senior Notes - Senior Notes - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Debt Instrument [Line Items]
Repurchase of debt	$ 0	$ 1,000
Discount recognized gain.		$ 80

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 16,300,000	$ 9,900,000	$ 30,400,000	$ 38,900,000
Effective tax rate (percent)	27.60%	29.10%	27.40%	28.10%
Effective income tax rate reconciliation, at federal and state statutory income tax rate, percent (percent)	28.90%	28.90%	28.90%	28.90%
Valuation allowance	$ 0		$ 0		$ 0
Net deferred tax asset	51,500,000		51,500,000		50,500,000
Unrecognized tax benefits	800,000		800,000		800,000
Unrecognized tax benefits that would impact the effective tax rate	600,000		600,000
Accrued interest or penalties	$ 0		$ 0		$ 0

DERIVATIVE INSTRUMENTS - Narrat

DERIVATIVE INSTRUMENTS - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended			9 Months Ended
	Mar. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jul. 25, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivatives asset, Fair Value		$ 70,625			$ 70,625			$ 2,292
Derivatives asset, notional amount		5,233,632			5,233,632			39,579
Change in fair value of derivative instruments		46,186	$ 10	$ 39	46,172	$ 224
Change in fair value of derivative instruments					46,172	224
Interest rate swaps
Derivatives, Fair Value [Line Items]
Notional amount	$ 300,000
Term of cash flow hedge contracts	5 years
Derivatives asset, notional amount							$ 3,100,000
Cash flow hedges
Derivatives, Fair Value [Line Items]
Derivatives asset, Fair Value		5,874			5,874			0
Cash flow hedge reclassified to earnings					4,100
Derivatives asset, notional amount		300,000			300,000			0
Cash flow hedges
Derivatives, Fair Value [Line Items]
Cash flow hedges		4,200			4,200
Interest rate swaptions
Derivatives, Fair Value [Line Items]
Derivatives asset, Fair Value		27,003			27,003			0
Derivatives asset, notional amount		3,093,000			3,093,000			0
Payments for issuance of derivatives		15,700
Change in fair value of derivative instruments		11,300
Contingent forward loan sale agreement
Derivatives, Fair Value [Line Items]
Derivatives asset, Fair Value		34,902			34,902			0
Derivatives asset, notional amount		1,803,869			1,803,869		$ 1,800,000	0
Change in fair value of derivative instruments		$ 34,900			$ 34,900
Mortgages price percent		87.25%			87.25%
Interest rate swaps on loans
Derivatives, Fair Value [Line Items]
Derivatives asset, Fair Value		$ 2,708			$ 2,708			2,134
Derivatives asset, notional amount		32,166			32,166			$ 33,694
Change in fair value of derivative instruments		$ 19		$ 38	$ 7	$ 200

DERIVATIVE INSTRUMENTS - Amount

DERIVATIVE INSTRUMENTS - Amount and Market Value of Mortgage Banking Derivatives (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jul. 25, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivatives asset, notional amount	$ 5,233,632		$ 39,579
Derivatives asset, Fair Value	70,625		2,292
Derivative liabilities, Notional Amount	36,763		39,579
Derivative liabilities, Fair Value	2,799		2,251
Contingent forward loan sale agreement
Derivatives, Fair Value [Line Items]
Derivatives asset, notional amount	1,803,869	$ 1,800,000	0
Derivatives asset, Fair Value	34,902		0
Interest rate swaptions
Derivatives, Fair Value [Line Items]
Derivatives asset, notional amount	3,093,000		0
Derivatives asset, Fair Value	27,003		0
Cash flow hedges
Derivatives, Fair Value [Line Items]
Derivatives asset, notional amount	300,000		0
Derivatives asset, Fair Value	5,874		0
Interest rate swaps on loans
Derivatives, Fair Value [Line Items]
Derivatives asset, notional amount	32,166		33,694
Derivatives asset, Fair Value	2,708		2,134
Derivative liabilities, Notional Amount	32,166		33,694
Derivative liabilities, Fair Value	2,669		2,107
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivatives asset, notional amount	4,597		5,885
Derivatives asset, Fair Value	138		158
Derivative liabilities, Notional Amount	4,597		5,885
Derivative liabilities, Fair Value	$ 130		$ 144

EMPLOYEE STOCK COMPENSATION - A

EMPLOYEE STOCK COMPENSATION - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2023	Sep. 30, 2023	Dec. 31, 2022	May 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	0	0
Unvested options outstanding (in shares)		0	0
Restricted stock awards and units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense		$ 11.6
Expense recognition period		2 years 4 months 24 days
Restricted stock awards and units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		1 year
Restricted stock awards and units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		5 years
Performance-based Restricted Stock Unit (PSU)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, common stock subject to repurchase or cancellation (in shares)		590,162
Number of shares, PSU awards granted with performance conditions other than stock-price subject to accelerated vesting (in shares)		190,352
Stock options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Award expiration period		7 years
Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		5 years
Award expiration period		10 years
2018 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares authorized for grant (in shares)				4,417,882
Common stock available under new plan (in shares)		1,904,116

EMPLOYEE STOCK COMPENSATION - S

EMPLOYEE STOCK COMPENSATION - Share Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Related tax benefits	$ 457	$ 495	$ 1,377	$ 1,295
Restricted stock awards and units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 1,581	$ 1,715	$ 4,762	$ 4,482

EMPLOYEE STOCK COMPENSATION - N

EMPLOYEE STOCK COMPENSATION - Nonvested Restricted Stock Awards and Restricted Stock Units (Details) - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Restricted stock awards and units
Number of Shares
Outstanding at beginning of period (in shares)	1,350,210	1,403,245
Granted (in shares)	41,015	415,215
Vested (in shares)	(6,624)	(289,701)
Forfeited (in shares)	(44,092)	(188,250)
Outstanding at end of period (in shares)	1,340,509	1,340,509
Weighted Average Grant Date Fair Value Per Share
Outstanding at beginning of period (in dollars per share)	$ 14.61	$ 14.68
Granted (in dollars per share)	14.02	15.87
Vested (in dollars per share)	14.10	17.39
Forfeited (in dollars per share)	$ 17.74	$ 13.68
Granted (in shares)	41,015	415,215
Outstanding at end of period (in dollars per share)	$ 14.60	$ 14.60
Performance Shares
Number of Shares
Granted (in shares)	0	79,784
Vested (in shares)	0	(66,699)
Forfeited (in shares)	(26,076)	(150,958)
Outstanding at end of period (in shares)	780,514	780,514
Weighted Average Grant Date Fair Value Per Share
Granted (in shares)	0	79,784

EMPLOYEE STOCK COMPENSATION - O

EMPLOYEE STOCK COMPENSATION - Option Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares
Number of Shares
Outstanding at beginning of period (in shares) | shares	14,904	14,904
Exercised (in shares) | shares	(1,836)	(1,836)
Outstanding at end of period (in shares) | shares	13,068	13,068
Exercisable at end of period (in shares) | shares	13,068	13,068
Weighted-Average Exercise Price Per Share
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 13.05	$ 13.05
Exercised (in dollars per share) | $ / shares	10.90	10.90
Outstanding at end of period (in dollars per share) | $ / shares	13.35	13.35
Exercisable at end of period (in dollars per share) | $ / shares	$ 13.35	$ 13.35
Weighted-Average Remaining Contract Term
Outstanding at end of period	1 year 7 months 6 days
Exercisable at end of period	1 year 7 months 6 days
Aggregate Intrinsic Value
Outstanding | $	$ 3	$ 3
Exercisable at end of period | $	$ 3	$ 3

STOCKHOLDERS' EQUITY - Addition

STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Feb. 13, 2023
Class of Stock [Line Items]
Impact of preferred stock redemption	$ 0	$ 0	$ 0		$ 0	$ 3,747
Authorized repurchase amount							$ 35,000
Shares repurchased (in shares)	0		740,332		1,759,491	3,069,058
Shares repurchased, weighted average price (in usd per share)					$ 12.02
Remaining authorized repurchase amount	$ 13,900				$ 13,900
Preferred Stock
Class of Stock [Line Items]
Preferred stock, authorized (in shares)	50,000,000				50,000,000
Preferred stock, par value (in dollars per share)	$ 0.01				$ 0.01
Preferred stock, liquidation preference per share (in dollars per share)	$ 1,000				$ 1,000
Preferred stock, outstanding (in shares)	0				0
Preferred Stock | Series E Preferred Stock
Class of Stock [Line Items]
Impact of preferred stock redemption	$ 0		$ 0	$ 3,700	$ 0	$ 3,747

STOCKHOLDERS' EQUITY - Deposito

STOCKHOLDERS' EQUITY - Depository Share Repurchases (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Class of Stock [Line Items]
Impact of preferred stock redemption	$ 0	$ 0	$ 0		$ 0	$ 3,747
Preferred Stock | Series E Depository Shares
Class of Stock [Line Items]
Shares redeemed (in shares)	0		0		0	3,948,080
Preferred Stock | Series E Preferred Stock
Class of Stock [Line Items]
Shares redeemed (in shares)	0		0		0	98,702
Consideration paid	$ 0		$ 0		$ 0	$ 98,703
Carrying value	0		0		0	94,956
Impact of preferred stock redemption	$ 0		$ 0	$ 3,700	$ 0	$ 3,747

STOCKHOLDERS' EQUITY - Changes

STOCKHOLDERS' EQUITY - Changes to Accumulated Other Comprehensive (Loss) Income by Components (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ (49,758)	$ (34,059)	$ (40,597)	$ 7,743
Tax effect of current period changes	(2,482)	5,494	1,163	22,478
Total changes, net of taxes	6,305	(13,520)	(2,856)	(55,322)
Balance at end of period	(43,453)	(47,579)	(43,453)	(47,579)
Gain (loss) on securities available-for-sale
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Unrealized gain (loss) arising during the period	2,205	(19,289)	(10,652)	(78,392)
Reclassification adjustment from other comprehensive income	0	0	0	(16)
Total unrealized gain (loss) on securities available-for-sale	2,205	(19,289)	(10,652)	(78,408)
Amortization of unrealized loss of available-for-sale securities transferred to held-to-maturity	254	275	759	608
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Unrealized gain arising during the period	$ 6,328	$ 0	$ 5,874	$ 0

VARIABLE INTEREST ENTITIES - Ad

VARIABLE INTEREST ENTITIES - Additional Information (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023 USD ($) trust	Sep. 30, 2022 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2023 USD ($) trust	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Variable Interest Entity [Line Items]
Total assets	$ 9,247,072			$ 9,247,072		$ 9,197,016
Other CRA investments	$ 88,600			$ 88,600		85,000
Number of grantor trusts | trust	2			2
Small Business Investment Companies (SBICs)
Variable Interest Entity [Line Items]
Ownership percentage of limited partnership (percent)	3%			3%
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total assets	$ 244,479			$ 244,479		251,589
Fundings	0	$ 0		0	$ 0
Maximum loss exposure	18,803			18,803		21,410
Unpaid principal amount	82,100			82,100
Investments in grantor trusts	500			500		500
Variable Interest Entity, Not Primary Beneficiary | Multifamily
Variable Interest Entity [Line Items]
Fundings			$ 573,500
Maximum loss exposure	$ 68,800			$ 68,800
Credit losses guaranteed (percent)	12%			12%
Repurchase liability recognized	$ 1,200			$ 1,200
Variable Interest Entity, Not Primary Beneficiary | Other Assets
Variable Interest Entity [Line Items]
Total assets	$ 18,800			$ 18,800		$ 21,400

VARIABLE INTEREST ENTITIES - In

VARIABLE INTEREST ENTITIES - Information Regarding Activity in Alternative Energy Partnerships (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Variable Interest Entity [Line Items]
Gain (loss) on investments in alternative energy partnerships	$ 34	$ 36	$ (504)	$ (1,548)	$ (1,705)
Tax expense (benefit) recognized from HLBV application	16,258	$ 6,745	9,931	30,398	38,877
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Return of capital	342		626	1,059	1,782
Gain (loss) on investments in alternative energy partnerships	34		(504)	(1,548)	(1,705)
Tax expense (benefit) recognized from HLBV application	$ 10		$ (146)	$ (448)	$ (493)

VARIABLE INTEREST ENTITIES - Su

VARIABLE INTEREST ENTITIES - Summary of Unconsolidated VIEs (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Equipment, net of depreciation	$ 109,141	$ 107,345
Other assets	264,148	275,897
Total unconsolidated assets	9,247,072	9,197,016
Total unconsolidated liabilities	8,245,352	8,237,398
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Cash	2,902	4,110
Equipment, net of depreciation	230,987	237,641
Other assets	10,590	9,838
Total unconsolidated assets	244,479	251,589
Total unconsolidated liabilities	11,451	11,679
Maximum loss exposure	$ 18,803	$ 21,410

VARIABLE INTEREST ENTITIES - Ba

VARIABLE INTEREST ENTITIES - Balances and Activity in Affordable Housing Partnerships (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Variable Interest Entity [Line Items]
Fundings			$ 4,712	$ 4,878
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Ending balance	$ 18,803		18,803		$ 21,410
Maximum loss exposure	18,803		18,803		21,410
Affordable Housing Fund Investment | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Ending balance	41,138		41,138		45,726
Aggregate funding commitment	72,767		72,767		72,967
Total amount funded	57,417		57,417		55,487
Unfunded commitment	15,350		15,350		17,480
Maximum loss exposure	41,138		41,138		$ 45,726
Fundings	127	$ 1,128	1,930	3,152
Proportional amortization recognized	1,512	1,350	4,450	3,727
Income tax credits recognized	$ 1,673	$ 1,298	$ 5,048	$ 3,834

EARNINGS PER COMMON SHARE - Com

EARNINGS PER COMMON SHARE - Computations for Basic and Diluted Earnings/(Loss) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Schedule of Earnings Per Share [Line Items]
Less: preferred stock dividends	$ 0	$ 0	$ 0	$ 0	$ (1,420)
Less: preferred stock redemption	0	$ 0	0	0	(3,747)
Common Stock
Schedule of Earnings Per Share [Line Items]
Net income	$ 42,220		24,004	$ 80,068	98,646
Less: preferred stock dividends			0		(1,409)
Less: preferred stock redemption			0		(3,718)
Net income allocated to common stockholders			$ 24,004		$ 93,519
Weighted average common shares outstanding (in shares)	56,957,053		59,567,082	57,659,924	60,846,798
Average shares and dilutive common shares (in shares)	57,044,515		60,015,139	57,752,816	61,182,579
Basic earnings per common share (in dollars per share)	$ 0.74	$ 0.31	$ 0.40	$ 1.39	$ 1.54
Diluted earnings per common share (in dollars per share)	$ 0.74	0.31	$ 0.40	$ 1.39	$ 1.53
Common Stock | Dilutive effects of restricted shares/units
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	87,109		444,321	92,269	331,389
Common Stock | Stock options
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	353		3,736	623	4,392
Class B Common Stock
Schedule of Earnings Per Share [Line Items]
Net income	$ 354		$ 192	$ 663	$ 774
Less: preferred stock dividends			0		(11)
Less: preferred stock redemption			0		(29)
Net income allocated to common stockholders			$ 192		$ 734
Weighted average common shares outstanding (in shares)	477,321		477,321	477,321	477,321
Average shares and dilutive common shares (in shares)	477,321		477,321	477,321	477,321
Basic earnings per common share (in dollars per share)	$ 0.74	0.31	$ 0.40	$ 1.39	$ 1.54
Diluted earnings per common share (in dollars per share)	$ 0.74	$ 0.31	$ 0.40	$ 1.39	$ 1.54
Class B Common Stock | Dilutive effects of restricted shares/units
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	0		0	0	0
Class B Common Stock | Stock options
Schedule of Earnings Per Share [Line Items]
Dilutive effects of stock units and stock options (in shares)	0		0	0	0

EARNINGS PER COMMON SHARE - Add

EARNINGS PER COMMON SHARE - Additional Information (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Dilutive effects of restricted shares/units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock excluded from computation of earnings per share (in shares)	500,943	157,049	484,850	3,391
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock excluded from computation of earnings per share (in shares)	11,232	0	11,232	0

LOAN COMMITMENTS AND OTHER RE_3

LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES - Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022	Jul. 25, 2023
Other Commitments [Line Items]
Unfunded commitment	$ 15,350	$ 17,480
Derivatives asset, notional amount	5,233,632	39,579
Contingent forward loan sale agreement
Other Commitments [Line Items]
Derivatives asset, notional amount	1,803,869	0	$ 1,800,000
LIHTC Investments
Other Commitments [Line Items]
Unfunded commitment	15,400	17,500
Small Business Investment Companies
Other Commitments [Line Items]
Unfunded commitment	7,400	8,600
Other Investments
Other Commitments [Line Items]
Unfunded commitment	20,500	9,800
Commitments to extend credit
Other Commitments [Line Items]
Fixed Rate	65,639	50,193
Variable Rate	164,455	180,696
Unused lines of credit
Other Commitments [Line Items]
Fixed Rate	46,747	8,392
Variable Rate	1,365,588	1,505,122
Letters of credit
Other Commitments [Line Items]
Fixed Rate	1,673	2,461
Variable Rate	$ 8,886	$ 7,016

OTHER ASSETS AND OTHER LIABIL_3

OTHER ASSETS AND OTHER LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other Assets
Accrued interest receivable	$ 39,494	$ 37,942
Prepaid expenses	$ 10,934	$ 8,068
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total other assets	Total other assets
Operating lease right-of-use assets	$ 23,104	$ 28,780
Servicing assets	20,443	22,484
Other real estate owned	882	0
Income tax receivable	0	7,679
CRA and other equity investments	94,273	90,295
LIHTCs	41,138	45,726
Alternative energy partnerships	18,803	21,410
Other assets	15,077	13,513
Total other assets	264,148	275,897
Other Liabilities
Accrued interest payable	21,187	7,004
Accounts payable and accrued expenses	41,741	37,560
Income taxes payable	19,062	0
Derivative liabilities	$ 2,799	$ 2,251
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Total accrued expenses and other liabilities	Total accrued expenses and other liabilities
Lease liability	$ 25,654	$ 33,122
Commitments to fund LIHTC	15,350	17,480
Reserve for unfunded noncancellable loan commitments	4,005	5,305
Reserve for loss on repurchased loans	1,971	2,989
Other liabilities	4,579	8,512
Total accrued expenses and other liabilities	$ 136,348	$ 114,223

REVENUE RECOGNITION - Summary o

REVENUE RECOGNITION - Summary of Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	$ 2,139		$ 2,198	$ 6,278	$ 6,770
Noninterest income (out-of-scope of Topic 606)	48,639		3,483	58,383	12,007
Total noninterest income	50,778	$ 6,024	5,681	64,661	18,777
Deposit service fees
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	1,508		1,486	4,148	4,767
Debit card fees
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	417		472	1,217	1,467
Other
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	$ 214		$ 240	$ 913	$ 536

REVENUE RECOGNITION - Additiona

REVENUE RECOGNITION - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Jan. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Sale leaseback transaction, net book value	$ 2,400
Gain on sale-leaseback of branch	$ 800	$ 0	$ 771

RELATED-PARTY TRANSACTIONS - Ad

RELATED-PARTY TRANSACTIONS - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Director | Current Directors | Special Committee Investigation Indemnification
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 120	$ 120	$ 159	$ 244

SUBSEQUENT EVENTS - Narrative (

SUBSEQUENT EVENTS - Narrative (Details) $ in Millions	Jul. 25, 2023 USD ($)
Warburg Pincus LLC (“Warburg”), and Centerbridge Partners, L.P. And Affiliates (“Centerbridge”)
Subsequent Event [Line Items]
Total investment expected	$ 400