Pacific Premier Bancorp (PPBI) 10-Q 29 Oct 24 2024 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2024	Oct. 22, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	0-22193
Entity Registrant Name	PACIFIC PREMIER BANCORP INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	33-0743196
Entity Address, Address Line One	17901 Von Karman Avenue
Entity Address, Address Line Two	Suite 1200
Entity Address, City or Town	Irvine
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92614
City Area Code	949
Local Phone Number	864-8000
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	PPBI
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		96,440,625
Entity Central Index Key	0001028918
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks	$ 160,305	$ 146,696
Interest-bearing deposits with financial institutions	821,944	789,777
Cash and cash equivalents	982,249	936,473
Interest-bearing time deposits with financial institutions	1,246	995
Investments securities held-to-maturity, at amortized cost, net of allowance for credit losses of $104 and $126 (fair value of $1,482,042 and $1,485,506) at September 30, 2024 and December 31, 2023, respectively	1,713,575	1,729,541
Investment securities available-for-sale, at fair value	1,316,546	1,140,071
FHLB, FRB, and other stock	97,336	99,225
Loans held for investment	12,035,097	13,289,020
Allowance for credit losses	(181,248)	(192,471)
Loans held for investment, net	11,853,849	13,096,549
Accrued interest receivable	64,803	68,516
Other real estate owned	0	248
Premises and equipment, net	49,807	56,676
Deferred income taxes, net	104,564	113,580
Bank owned life insurance	481,309	471,178
Intangible assets	34,924	43,285
Goodwill	901,312	901,312
Other assets	308,123	368,996
Total assets	17,909,643	19,026,645
Deposit accounts:
Noninterest-bearing checking	4,639,077	4,932,817
Interest-bearing:
Checking	2,763,353	2,899,621
Money market/savings	4,805,516	4,868,442
Retail certificates of deposit	1,972,962	1,684,560
Wholesale/brokered certificates of deposit	300,019	610,186
Total interest-bearing	9,841,850	10,062,809
Total deposits	14,480,927	14,995,626
FHLB advances and other borrowings	0	600,000
Subordinated debentures	272,320	331,842
Accrued expenses and other liabilities	212,459	216,596
Total liabilities	14,965,706	16,144,064
STOCKHOLDERS’ EQUITY
Preferred stock, $0.01 par value; 1,000,000 authorized; no shares issued and outstanding	0	0
Common stock, $0.01 par value; 150,000,000 shares authorized at September 30, 2024 and December 31, 2023; 96,462,767 shares and 95,860,092 shares issued and outstanding, respectively	942	938
Additional paid-in capital	2,389,767	2,377,131
Retained earnings	633,350	604,137
Accumulated other comprehensive loss	(80,122)	(99,625)
Total stockholders’ equity	2,943,937	2,882,581
Total liabilities and stockholders’ equity	$ 17,909,643	$ 19,026,645

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Investments held-to-maturity, allowance for credit losses	$ 104	$ 126
Investments held-to-maturity, fair value	$ 1,482,042	$ 1,485,506
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	96,462,767	95,860,092
Common stock, shares outstanding (in shares)	96,462,767	95,860,092

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
INTEREST INCOME
Loans	$ 163,409	$ 177,032	$ 503,931	$ 540,842
Investment securities and other interest-earning assets	42,217	47,030	123,180	129,951
Total interest income	205,626	224,062	627,111	670,793
INTEREST EXPENSE
Deposits	67,898	62,718	191,633	156,532
FHLB advances and other borrowings	1,511	7,235	8,078	22,328
Subordinated debentures	5,319	4,561	14,981	13,683
Total interest expense	74,728	74,514	214,692	192,543
Net interest income before provision for credit losses	130,898	149,548	412,419	478,250
Provision for credit losses	486	3,918	5,603	8,433
Net interest income after provision for credit losses	130,412	145,630	406,816	469,817
NONINTEREST INCOME
Loan servicing income	525	533	1,564	1,599
Earnings on bank owned life insurance	4,335	3,579	12,712	10,440
Net gain from sales of loans	47	45	112	419
Net gain from sales of investment securities	0	0	0	138
Other income	581	223	6,373	3,515
Total noninterest income	18,867	18,551	62,863	60,276
NONINTEREST EXPENSE
Compensation and benefits	53,400	54,068	160,670	161,785
Premises and occupancy	10,899	11,382	32,186	34,739
Data processing	7,777	7,517	23,042	22,270
Other real estate owned operations, net	1	(4)	47	112
FDIC insurance premiums	1,922	2,324	6,424	7,106
Legal and professional services	4,980	4,243	10,201	14,460
Marketing expense	860	1,635	4,142	5,352
Office expense	1,046	1,079	3,216	3,591
Loan expense	734	476	2,344	1,689
Deposit expense	12,474	10,811	37,428	28,441
Amortization of intangible assets	2,762	3,055	8,361	9,281
Other expense	4,790	5,599	13,784	15,355
Total noninterest expense	101,645	102,185	301,845	304,181
Net income before income taxes	47,634	61,996	167,834	225,912
Income tax expense	11,655	15,966	42,925	59,684
Net income	$ 35,979	$ 46,030	$ 124,909	$ 166,228
EARNINGS PER SHARE
Basic (in dollars per share)	$ 0.37	$ 0.48	$ 1.30	$ 1.74
Diluted (in dollars per share)	$ 0.37	$ 0.48	$ 1.30	$ 1.74
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	94,650,096	94,189,844	94,543,243	94,072,463
Diluted (in shares)	94,775,927	94,283,008	94,652,583	94,214,846
Service charges on deposit accounts
NONINTEREST INCOME
Noninterest income	$ 2,711	$ 2,673	$ 8,109	$ 7,972
Other service fee income
NONINTEREST INCOME
Noninterest income	306	280	951	891
Debit card interchange fee income
NONINTEREST INCOME
Noninterest income	876	924	2,566	2,641
Trust custodial account fees
NONINTEREST INCOME
Noninterest income	8,813	9,356	28,405	29,741
Escrow and exchange fees
NONINTEREST INCOME
Noninterest income	$ 673	$ 938	$ 2,071	$ 2,920

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income		$ 35,979	$ 46,030	$ 124,909	$ 166,228
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on securities available-for-sale, net of income taxes	[1]	7,350	(15,684)	11,723	5,166
Reclassification adjustment for net gain on sales of securities included in net income, net of income taxes	[2]	0	0	0	(99)
Net unrealized loss on securities transferred from available-for-sale to held-to-maturity, net of income taxes	[3]	0	0	0	(36,076)
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity, net of income taxes	[4]	2,661	2,522	7,780	7,627
Other comprehensive income (loss), net of tax		10,011	(13,162)	19,503	(23,382)
Comprehensive income, net of tax		$ 45,990	$ 32,868	$ 144,412	$ 142,846
[1]Income tax expense (benefit) of the unrealized gain (loss) on securities was $2.9 million and $(6.2) million for the three months ended September 30, 2024 and 2023, respectively, and $4.6 million and $2.0 million for the nine months ended September 30, 2024 and 2023, respectively.[2]Income tax expense on the reclassification adjustment for net gain on sales of securities included in net income was zero for the three months ended September 30, 2024 and 2023, respectively, and zero and $39,000 for the nine months ended September 30, 2024 and 2023, respectively.[3]Income tax (benefit) expense on the unrealized loss on securities transferred from available-for-sale to held-to-maturity was zero for the three months ended September 30, 2024 and 2023, respectively, and zero and $(14.3) million for the nine months ended September 30, 2024 and 2023, respectively.[4]Income tax expense on the amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity included in net income was $1.0 million and $1.0 million for the three months ended September 30, 2024 and 2023, respectively, and $3.1 million and $3.0 million for the nine months ended September 30, 2024 and 2023, respectively.

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Unrealized holding gain (loss) on securities arising during the period, income tax expense (benefit)	$ 2,900,000	$ (6,200,000)	$ 4,600,000	$ 2,000,000
Reclassification adjustment for net gain on sale of securities included in net income, income tax expense	0	0	0	39,000
Unrealized loss on securities transferred from available-for-sale to held-to maturity, income tax expense (benefit)	0	0	0	(14,300,000)
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity, income tax expense	$ 1,000,000	$ 1,000,000	$ 3,100,000	$ 3,000,000

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Retained Earnings	Accumulated Other Comprehensive Loss
Balance at beginning of period (in shares) at Dec. 31, 2022		95,021,760
Balance at beginning of period at Dec. 31, 2022	$ 2,798,389	$ 933	$ 2,362,663	$ 700,040	$ (265,247)
Increase (Decrease) in Stockholders' Equity
Net income	166,228			166,228
Other comprehensive income (loss)	(23,382)				(23,382)
Cash dividends declared	(94,616)			(94,616)
Dividend equivalents declared	0		367	(367)
Share-based compensation expense	14,622		14,622
Issuance of restricted stock, net (in shares)		1,085,234
Issuance of restricted stock, net	0	$ 4	(4)
Restricted stock surrendered and canceled (in shares)		(221,617)
Restricted stock surrendered and canceled	(5,953)		(5,953)
Exercise of stock options (in shares)		15,470
Exercise of stock options	246		246
Balance at end of period (in shares) at Sep. 30, 2023		95,900,847
Balance at end of period at Sep. 30, 2023	2,855,534	$ 937	2,371,941	771,285	(288,629)
Balance at beginning of period (in shares) at Jun. 30, 2023		95,906,217
Balance at beginning of period at Jun. 30, 2023	2,849,134	$ 937	2,366,639	757,025	(275,467)
Increase (Decrease) in Stockholders' Equity
Net income	46,030			46,030
Other comprehensive income (loss)	(13,162)				(13,162)
Cash dividends declared	(31,647)			(31,647)
Dividend equivalents declared	0		123	(123)
Share-based compensation expense	5,350		5,350
Issuance of restricted stock, net (in shares)		11,161
Issuance of restricted stock, net	0
Restricted stock surrendered and canceled (in shares)		(16,531)
Restricted stock surrendered and canceled	(171)		(171)
Exercise of stock options	0
Balance at end of period (in shares) at Sep. 30, 2023		95,900,847
Balance at end of period at Sep. 30, 2023	$ 2,855,534	$ 937	2,371,941	771,285	(288,629)
Balance at beginning of period (in shares) at Dec. 31, 2023	95,860,092	95,860,092
Balance at beginning of period at Dec. 31, 2023	$ 2,882,581	$ 938	2,377,131	604,137	(99,625)
Increase (Decrease) in Stockholders' Equity
Net income	124,909			124,909
Other comprehensive income (loss)	19,503				19,503
Cash dividends declared	(95,280)			(95,280)
Dividend equivalents declared	0		416	(416)
Share-based compensation expense	16,368		16,368
Issuance of restricted stock, net (in shares)		819,501
Issuance of restricted stock, net	0	$ 3	(3)
Restricted stock surrendered and canceled (in shares)		(267,448)
Restricted stock surrendered and canceled	(4,933)		(4,933)
Exercise of stock options (in shares)		50,622
Exercise of stock options	$ 789	$ 1	788
Balance at end of period (in shares) at Sep. 30, 2024	96,462,767	96,462,767
Balance at end of period at Sep. 30, 2024	$ 2,943,937	$ 942	2,389,767	633,350	(80,122)
Balance at beginning of period (in shares) at Jun. 30, 2024		96,434,047
Balance at beginning of period at Jun. 30, 2024	2,923,764	$ 941	2,383,615	629,341	(90,133)
Increase (Decrease) in Stockholders' Equity
Net income	35,979			35,979
Other comprehensive income (loss)	10,011				10,011
Cash dividends declared	(31,822)			(31,822)
Dividend equivalents declared	0		148	(148)
Share-based compensation expense	5,484		5,484
Issuance of restricted stock, net (in shares)		13,500
Issuance of restricted stock, net	0
Restricted stock surrendered and canceled (in shares)		(23,976)
Restricted stock surrendered and canceled	(81)		(81)
Exercise of stock options (in shares)		39,196
Exercise of stock options	$ 602	$ 1	601
Balance at end of period (in shares) at Sep. 30, 2024	96,462,767	96,462,767
Balance at end of period at Sep. 30, 2024	$ 2,943,937	$ 942	$ 2,389,767	$ 633,350	$ (80,122)

CONSOLIDATED STATEMENTS OF ST_2

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.33	$ 0.33	$ 0.99	$ 0.99
Dividend equivalents declared (in dollars per share)	$ 0.33	$ 0.33	$ 0.99	$ 0.99

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income	$ 124,909	$ 166,228
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	9,044	10,617
Provision for credit losses	5,603	8,433
Share-based compensation expense	16,368	14,622
Loss on sales and disposals of premises and equipment	12	131
Loss (gain) on sale or write down of other real estate owned	28	(106)
Net (accretion) amortization of discounts/premium on securities	(9,280)	11,244
Net (accretion) of discounts/premiums for acquired loans and deferred loan fees/costs	(9,873)	(11,573)
(Gain) on sale of investment securities available-for-sale	0	(138)
(Gain) on debt extinguishment	(5,270)	0
(Gain) on sales of loans	(112)	(419)
Deferred income tax expense	1,335	677
Income from bank owned life insurance, net	(10,591)	(8,453)
Amortization of intangible assets	8,361	9,281
Origination of loans held for sale, net of principal payments received	(1,793)	(1,370)
Proceeds from the sales of loans held for sale	2,255	2,085
Net change in accrued expenses and other liabilities	(26,434)	78,202
Net change in accrued interest receivable and other assets	81,337	(10,970)
Net cash provided by operating activities	185,899	268,491
Cash flows from investing activities:
Net (increase) decrease in interest-bearing time deposits with financial institutions	(251)	492
Proceeds from sales of other real estate owned	209	3,307
Loan (originations) and payments, net	1,200,165	1,330,911
Proceeds from sales of loans classified as loans held for investment	58,325	84,472
Purchase of securities held-to-maturity	(14,734)	(21,357)
Proceeds from prepayments and maturities of securities held-to-maturity	34,783	35,748
Purchase of securities available-for-sale	(711,841)	(224,347)
Proceeds from prepayments and maturities of securities available-for-sale	567,761	198,433
Proceeds from sales of securities available-for-sale	0	304,320
Proceeds from the sales of premises and equipment	2	3
Proceeds from surrender of bank owned life insurance	463	272
Purchase of premises and equipment	(2,189)	(5,604)
Net change in FHLB, FRB, and other stock	1,867	1,784
Funding of Community Reinvestment Act (“CRA”) investments, net	(5,830)	(32,621)
Net cash provided by investing activities	1,128,730	1,675,813
Cash flows from financing activities:
Net change in deposit accounts	(514,699)	(1,344,954)
Net change in short-term borrowings	0	(200,000)
Repayments of long-term borrowings	(594,730)	0
Repayments of subordinated debentures	(60,000)	0
Cash dividends paid	(95,280)	(94,616)
Proceeds from exercise of stock options	789	246
Restricted stock surrendered and canceled	(4,933)	(5,953)
Net cash used in financing activities	(1,268,853)	(1,645,277)
Net increase in cash and cash equivalents	45,776	299,027
Cash and cash equivalents, beginning of period	936,473	1,101,249
Cash and cash equivalents, end of period	982,249	1,400,276
Supplemental cash flow disclosures:
Interest paid	219,960	177,393
Income taxes (refunded) paid, net	(16,135)	1,610
Noncash investing activities during the period:
Transfers from loans held for investment to loans held for sale	58,675	84,993
Loans held for sale transfer to loans held for investment	0	2,227
Other real estate owned transferred from loans held for investment	0	7,336
Transfers of investment securities from available-for-sale to held-to-maturity	0	360,347
Transfers of CRA investment securities from FHLB, FRB, and other stock to other assets	0	12,601
Recognition of operating lease right-of-use assets	(22,099)	(4,259)
Recognition of operating lease liabilities	23,604	4,336
Receivable on unsettled security payments	$ 8	$ 0

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements include the accounts of Pacific Premier Bancorp, Inc. (the “Corporation”) and its wholly owned subsidiaries, including Pacific Premier Bank (the “Bank”) (collectively, the “Company,” “we,” “our,” or “us”). All significant intercompany accounts and transactions have been eliminated in consolidation. In the opinion of management, the unaudited consolidated financial statements reflect all normal recurring adjustments and accruals that are necessary for a fair presentation of the statement of financial position and the results of operations for the interim periods presented. The results of operations for the nine months ended September 30, 2024 are not necessarily indicative of the results that may be expected for any other interim period or the full year ending December 31, 2024. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (the “2023 Form 10-K”). The Company consolidates voting entities in which the Company has control through voting interests or entities through which the Company has a controlling financial interest in a variable interest entity (“VIE”). The Company evaluates its interests in these entities to determine whether they meet the definition of a VIE and whether the Company is required to consolidate these entities. A VIE is consolidated by its primary beneficiary, which is the party that has both (i) the power to direct the activities that most significantly impact the economic performance of the VIE and (ii) a variable interest that could potentially be significant to the VIE. To determine whether or not a variable interest the Company holds could potentially be significant to the VIE, the Company considers both qualitative and quantitative factors regarding the nature, size, and form of the Company's involvement with the VIE. See Note 13 – Variable Interest Entities for additional information.

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	9 Months Ended
	Sep. 30, 2024
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Accounting Standards Adopted in 2024 In March 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU” or “Update”) 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 . The amendments in this Update allow the option for an entity to apply the proportional amortization method of accounting to other equity investments that are made for the primary purpose of receiving income tax credits or other income tax benefits, if certain conditions are met. Prior to this Update, the application of the proportional amortization method of accounting was limited to investments in low income housing tax credit structures. The proportional amortization method of accounting results in the amortization of applicable investments, as well as the related income tax credits or other income tax benefits received, being presented on a single line in the statements of income, that is income tax expense. Under this Update, an entity has the option to apply the proportional amortization method of accounting to applicable investments on a tax-credit-program-by-tax-credit-program basis. In addition, the amendments in this Update require that all tax equity investments accounted for using the proportional amortization method use the delayed equity contribution guidance in paragraph 323-740-25-3, requiring a liability be recognized for delayed equity contributions that are unconditional and legally binding or for equity contributions that are contingent upon a future event when that contingent event becomes probable. Under this Update, low income housing tax credit investments for which the proportional amortization method is not applied can no longer be accounted for using the delayed equity contribution guidance. Further, this Update specifies that tax equity investments accounted for using the equity method must apply the impairment guidance in Subtopic 323-10 - Investments - Equity Method and Joint Ventures - Overall. This Update also clarifies that for low income housing tax credit investments not accounted for under the proportional amortization method or the equity method, an entity shall account for them under Topic 321 - Investments - Equity Securities. The amendments in this Update also require additional disclosures in interim and annual periods concerning investments for which the proportional amortization method is applied, including (i) the nature of tax equity investments, and (ii) the effect of tax equity investments and related income tax credits and other income tax benefits on the financial position and results of operations. The provisions of this Update became effective for the Company for interim and annual periods beginning January 1, 2024. Refer to Note 14 – Tax Equity Investments for additional information. The adoption of this Update did not have a material impact on the Company’s consolidated financial statements. Recent Accounting Guidance Not Yet Effective In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) - Improvements to Income Tax Disclosures . The FASB issued this Update to enhance the transparency and decision usefulness of income tax disclosures. The amendments in this Update address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid. The amendments in this Update are effective for annual periods beginning after December 15, 2024. Early adoption is permitted. The Company is currently evaluating the impact of this Update on its consolidated financial statements. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280) - Improvements to Reportable Segments . The amendments in this Update improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis. Amendments in this Update include: a requirement that a public entity provide all annual disclosures about a reportable segment’s profit or loss in its interim period disclosures, disclosure of significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”), disclosure of amounts for other segment items by reportable segment and a description of its composition, clarification that if the CODM uses more than one measure of a segment’s profit or loss in assessing segment performance and deciding how to allocate resources, a public entity may report one or more of those additional measures of segment profit or loss, requires that a public entity disclose the title and position of the CODM, and an explanation of how the CODM uses the reported measure(s) of segment profit or loss, and requires that a public entity that has a single reportable segment provide all the disclosures required by this Update as well as all existing disclosures required in Topic 280. The amendments in this Update are effective for the Company beginning with its 2024 annual financial statement disclosures for the year ended December 31, 2024, and for all interim and annual periods thereafter. Early adoption is permitted. The Company is currently evaluating the impact of this Update.

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Our accounting policies are described in Note 1 - Description of Business and Summary of Significant Accounting Policies , of our audited consolidated financial statements included in our 2023 Form 10-K. As of September 30, 2024, there were no significant changes to accounting policies from those disclosed in our audited consolidated financial statements included in our 2023 Form 10-K. Use of Estimates

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost and estimated fair value of available-for-sale (“AFS”) investment securities were as follows: (Dollars in thousands) Amortized Gross Unrealized Gross Unrealized Estimated AFS investment securities: September 30, 2024 U.S. Treasury $ 767,202 $ 4,149 $ — $ 771,351 Agency 1,207 — (42) 1,165 Corporate 428,311 265 (23,168) 405,408 Collateralized mortgage obligations 139,456 7 (841) 138,622 Total AFS investment securities $ 1,336,176 $ 4,421 $ (24,051) $ 1,316,546 December 31, 2023 U.S. Treasury $ 538,899 $ 381 $ (24) $ 539,256 Agency 1,941 — (73) 1,868 Corporate 481,499 52 (35,208) 446,343 Collateralized mortgage obligations 153,701 — (1,097) 152,604 Total AFS investment securities $ 1,176,040 $ 433 $ (36,402) $ 1,140,071 The carrying amount and estimated fair value of held-to-maturity (“HTM”) investment securities were as follows: (Dollars in thousands) Amortized Allowance for Credit Losses Net Carrying Amount Gross Unrecognized Gross Unrecognized Estimated HTM investment securities: September 30, 2024 Municipal bonds $ 1,145,201 $ (104) $ 1,145,097 $ 272 $ (204,482) $ 940,887 Collateralized mortgage obligations 316,550 — 316,550 1,532 (2,595) 315,487 Mortgage-backed securities 235,729 — 235,729 671 (26,931) 209,469 Other 16,199 — 16,199 — — 16,199 Total HTM investment securities $ 1,713,679 $ (104) $ 1,713,575 $ 2,475 $ (234,008) $ 1,482,042 December 31, 2023 Municipal bonds $ 1,146,244 $ (126) $ 1,146,118 $ 819 $ (206,361) $ 940,576 Collateralized mortgage obligations 334,997 — 334,997 1,565 (9,570) 326,992 Mortgage-backed securities 232,157 — 232,157 310 (30,798) 201,669 Other 16,269 — 16,269 — — 16,269 Total HTM investment securities $ 1,729,667 $ (126) $ 1,729,541 $ 2,694 $ (246,729) $ 1,485,506 The Company reassesses classification of certain investments as part of the ongoing review of the investment securities portfolio. During the nine months ended September 30, 2024, there were no transfers of AFS securities to HTM securities. During the nine months ended September 30, 2023, the Company transferred $410.7 million of AFS collateralized mortgage obligations to HTM securities. The Company intends and has the ability to hold the securities transferred to maturity. The transfer of these securities was accounted for at fair value on the transfer date. The collateralized mortgage obligations had a net carrying amount of $360.3 million with a pre-tax unrealized loss of $50.4 million, which are accreted into interest income as yield adjustments through earnings over the remaining term of the securities. The amortization of the related net after-tax unrealized losses reported in accumulated other comprehensive loss offsets the effect on interest income for the accretion of the unrealized losses associated with the transferred securities. No gains or losses were recorded at the time of transfer. Investment securities with carrying values of $2.72 billion and $2.80 billion as of September 30, 2024 and December 31, 2023, respectively, were pledged to other borrowings, secure public deposits, and for other purposes as required or permitted by law, of which $2.53 billion and $1.41 billion as of September 30, 2024 and December 31, 2023, respectively, were pledged to the Federal Reserve's discount window to increase the Company’s access to funding and provide liquidity. Unrealized Gains and Losses Unrealized gains and losses on AFS investment securities, net of tax, are recognized in stockholders’ equity as accumulated other comprehensive income or loss. At September 30, 2024, the Company had a net unrealized loss on AFS investment securities of $19.6 million, or $14.0 million net of tax in accumulated other comprehensive loss, compared to a net unrealized loss of $36.0 million, or $25.8 million net of tax in accumulated other comprehensive loss, at December 31, 2023. For investment securities transferred from AFS to HTM, the net after-tax unrealized gains and losses at the date of transfer continue to be reported in stockholders’ equity as accumulated other comprehensive loss and are amortized over the remaining lives of the securities with an offsetting entry to interest income as an adjustment of yield in a manner consistent with the amortization of a premium or discount, with an offsetting entry to interest income for the accretion of the unrealized loss associated with the transferred securities. At September 30, 2024, the unrealized loss on investment securities transferred from AFS to HTM was $92.1 million, or $66.1 million net of tax. At December 31, 2023, the unrealized loss on investment securities transferred from AFS to HTM was $102.9 million, or $73.9 million net of tax. The table below summarizes the number, fair value, and gross unrealized holding losses of the Company’s AFS investment securities in an unrealized loss position for which an allowance for credit losses (the “ACL”) has not been recorded as of the dates indicated, aggregated by investment category and length of time in a continuous loss position. September 30, 2024 Less than 12 Months 12 Months or Longer Total (Dollars in thousands) Number Fair Gross Number Fair Gross Number Fair Gross AFS investment securities: Agency — $ — $ — 4 $ 1,165 $ (42) 4 $ 1,165 $ (42) Corporate 3 26,523 (50) 34 301,666 (23,118) 37 328,189 (23,168) Collateralized mortgage obligations 1 7,326 (18) 24 122,396 (823) 25 129,722 (841) Total AFS investment securities 4 $ 33,849 $ (68) 62 $ 425,227 $ (23,983) 66 $ 459,076 $ (24,051) December 31, 2023 Less than 12 Months 12 Months or Longer Total (Dollars in thousands) Number Fair Gross Number Fair Gross Number Fair Gross AFS investment securities: U.S. Treasury 4 $ 98,622 $ (24) — $ — $ — 4 $ 98,622 $ (24) Agency — — — 4 1,868 (73) 4 1,868 (73) Corporate 1 4,989 (3) 47 431,353 (35,205) 48 436,342 (35,208) Collateralized mortgage obligations — — — 28 152,604 (1,097) 28 152,604 (1,097) Total AFS investment securities 5 $ 103,611 $ (27) 79 $ 585,825 $ (36,375) 84 $ 689,436 $ (36,402) Allowance for Credit Losses on Investment Securities The Company reviews individual securities classified as AFS to determine whether unrealized losses are deemed credit related or due to other factors such as changes in interest rates and general market conditions. An ACL on AFS investment securities is recorded when unrealized losses have been deemed, through the Company’s qualitative assessment, to be credit related. Non-credit related unrealized losses on AFS investment securities, which may be attributed to changes in interest rates and other market-related factors, are not recorded through an ACL. Such declines are recorded as an adjustment to accumulated other comprehensive loss, net of tax. In the event the Company is required to sell or has the intent to sell an AFS security that has experienced a decline in fair value below its amortized cost, the Company writes the amortized cost of the security down to fair value in the current period. The ACL for HTM investment securities is estimated on a collective basis, based on shared risk characteristics, and is determined at the individual security level when the Company deems a security to no longer possess shared risk characteristics. Credit losses on HTM investment securities are representative of the amount needed to reduce the amortized cost basis to reflect the net amount expected to be collected. The Company determines credit losses on both AFS and HTM investment securities through the use of a discounted cash flow approach using the security’s effective interest rate. The ACL is measured as the amount by which an investment security’s amortized cost exceeds the net present value of expected future cash flows. However, the amount of credit losses for AFS investment securities is limited to the amount of a security’s unrealized loss. The ACL is established through a charge to provision for credit losses in current period earnings. For additional information concerning the ACL on investment securities, refer to Note 1 - Description of Business and Summary of Significant Accounting Policies , of our audited consolidated financial statements included in our 2023 Form 10-K. At September 30, 2024 and December 31, 2023, the Company had an ACL of $104,000 and $126,000, respectively, for HTM investment securities classified as municipal bonds. The following table presents a rollforward by major security type of the ACL on the Company's HTM debt securities as of and for the periods indicated: (Dollars in thousands) Beginning ACL Balance Provision for Credit Losses Ending ACL Balance Three Months Ended September 30, 2024 HTM investment securities: Municipal bonds $ 129 $ (25) $ 104 Three Months Ended September 30, 2023 HTM investment securities: Municipal bonds $ 113 $ 15 $ 128 (Dollars in thousands) Beginning ACL Balance Provision for Credit Losses Ending ACL Balance Nine Months Ended September 30, 2024 HTM investment securities: Municipal bonds $ 126 $ (22) $ 104 Nine Months Ended September 30, 2023 HTM investment securities: Municipal bonds $ 43 $ 85 $ 128 The Company had no ACL for AFS investment securities at September 30, 2024 and December 31, 2023. The Company performed a qualitative assessment of these investments as of September 30, 2024 and determined that unrealized losses during the third quarter of 2024 were the result of general market conditions, including changes in interest rates, and does not believe the declines in fair value were credit related. As of September 30, 2024, the Company had not recorded credit losses on AFS securities that were in an unrealized loss position due to the high credit quality of the investments, with investment grade ratings, and many of them issued by U.S. government agencies. As of September 30, 2024, 69% of our AFS securities were U.S. Treasury, U.S. government agency, and U.S. government-sponsored enterprise securities. The fair value of Corporate bank debt securities continued to improve during the nine months ended September 30, 2024 as the spreads on the bank debt continued to tighten with overall signs of stability in the banking industry and interest rate movement during the period. Additionally, the Company continues to receive contractual principal and interest payments in a timely manner. It is more likely than not that the Company will not be required to sell the securities prior to their anticipated recoveries, and at this time the Company does not intend to sell these securities. There was no provision for credit losses recognized for AFS investment securities during the nine months ended September 30, 2024 and 2023. At September 30, 2024 and December 31, 2023, there were no AFS or HTM securities on nonaccrual status. All securities in the portfolio were current with their contractual principal and interest payments. At September 30, 2024 and December 31, 2023, there were no securities purchased with deterioration in credit quality since their origination. Realized Gains and Losses The following table presents the amortized cost of securities sold with related gross realized gains, gross realized losses, and net realized gains for the periods indicated: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Amortized cost of AFS investment securities sold $ — $ — $ — $ 304,182 Gross realized gains $ — $ — $ — $ 986 Gross realized (losses) — — — (848) Net realized gains on sales of AFS investment securities $ — $ — $ — $ 138 Contractual Maturities The amortized cost and estimated fair value of investment securities at September 30, 2024, by contractual maturity, are shown in the table below. Due in One Year Due after One Year Due after Five Years Due after Total (Dollars in thousands) Amortized Fair Amortized Fair Amortized Fair Amortized Fair Amortized Fair AFS investment securities: U.S. Treasury $ 618,639 $ 620,804 $ 148,563 $ 150,547 $ — $ — $ — $ — $ 767,202 $ 771,351 Agency — — 776 752 — — 431 413 1,207 1,165 Corporate 20,002 19,996 203,372 202,551 204,937 182,861 — — 428,311 405,408 Collateralized mortgage obligations — — 54,957 54,731 41,870 41,625 42,629 42,266 139,456 138,622 Total AFS investment securities 638,641 640,800 407,668 408,581 246,807 224,486 43,060 42,679 1,336,176 1,316,546 HTM investment securities: Municipal bonds — — 38,612 36,884 43,308 39,551 1,063,281 864,452 1,145,201 940,887 Collateralized mortgage obligations — — 57 57 — — 316,493 315,430 316,550 315,487 Mortgage-backed securities — — 2,938 3,025 6,059 6,277 226,732 200,167 235,729 209,469 Other — — — — — — 16,199 16,199 16,199 16,199 Total HTM investment securities — — 41,607 39,966 49,367 45,828 1,622,705 1,396,248 1,713,679 1,482,042 Total investment securities $ 638,641 $ 640,800 $ 449,275 $ 448,547 $ 296,174 $ 270,314 $ 1,665,765 $ 1,438,927 $ 3,049,855 $ 2,798,588

Loans Held for Investment

Loans Held for Investment	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Loans Held for Investment	Loans Held for Investment The Company’s loan portfolio is segmented according to loans that share similar attributes and risk characteristics. Investor loans secured by real estate includes commercial real estate (“CRE”) non-owner-occupied, multifamily, construction, and land, as well as Small Business Administration (“SBA”) loans secured by investor real estate, which are loans collateralized by hotel/motel real property. Business loans secured by real estate are loans to businesses that are collateralized by real estate where the operating cash flow of the business is the primary source of repayment. This loan portfolio includes CRE owner-occupied, franchise loans secured by real estate, and SBA loans secured by real estate, which are collateralized by real property other than hotel/motel real property. Commercial loans are loans to businesses where the operating cash flow of the business is the primary source of repayment. This loan portfolio includes commercial and industrial (“C&I”), franchise loans non-real estate secured, and SBA loans non-real estate secured. Retail loans include single family residential and consumer loans. Single family residential includes home equity lines of credit, as well as second trust deeds. The following table presents the composition of the loan portfolio for the periods indicated: September 30, December 31, (Dollars in thousands) 2024 2023 Investor loans secured by real estate CRE non-owner-occupied $ 2,202,268 $ 2,421,772 Multifamily 5,388,847 5,645,310 Construction and land 445,146 472,544 SBA secured by real estate 32,228 36,400 Total investor loans secured by real estate 8,068,489 8,576,026 Business loans secured by real estate CRE owner-occupied 2,038,583 2,191,334 Franchise real estate secured 264,696 304,514 SBA secured by real estate 43,943 50,741 Total business loans secured by real estate 2,347,222 2,546,589 Commercial loans Commercial and industrial 1,316,517 1,790,608 Franchise non-real estate secured 237,702 319,721 SBA non-real estate secured 8,407 10,926 Total commercial loans 1,562,626 2,121,255 Retail loans Single family residential 71,552 72,752 Consumer 1,361 1,949 Total retail loans 72,913 74,701 Loans held for investment before basis adjustment (1) 12,051,250 13,318,571 Basis adjustment associated with fair value hedge (2) (16,153) (29,551) Loans held for investment 12,035,097 13,289,020 Allowance for credit losses for loans held for investment (181,248) (192,471) Loans held for investment, net $ 11,853,849 $ 13,096,549 Total unfunded loan commitments $ 1,377,190 $ 1,703,470 Loans held for sale, at lower of cost or fair value $ — $ — ______________________________ (1) Includes net deferred origination costs (fees) of $1.5 million and $(74,000), and unaccreted fair value net purchase discounts of $35.9 million and $43.3 million as of September 30, 2024 and December 31, 2023, respectively. (2) Represents the basis adjustment associated with the application of hedge accounting on certain loans. The basis adjustment will be allocated to the amortized cost of associated loans within the closed portfolio if the hedge is discontinued. Refer to Note 11 – Derivative Instruments for additional information. The Company generally originates SBA loans with the intent to sell the guaranteed portion of the loans prior to maturity and, therefore, designates them as held for sale. From time to time, the Company may purchase or sell other types of loans in order to manage concentrations, maximize interest income, change risk profiles, improve returns, and generate liquidity. Loans Serviced for Others and Loan Securitization The Company generally retains the servicing rights of the guaranteed portion of SBA loans sold, for which the Company initially records a servicing asset at fair value within its other assets category. Servicing assets are subsequently measured using the amortization method and amortized to noninterest income. At September 30, 2024 and December 31, 2023, the servicing assets totaled $1.1 million and $1.6 million, respectively, and were included in other assets in the Company’s consolidated statements of financial condition. Servicing assets are evaluated for impairment based upon the fair value of the servicing rights as compared to carrying amount. Impairment is recognized through a valuation allowance, to the extent the fair value is less than the carrying amount. At September 30, 2024 and December 31, 2023, the Company determined that no valuation allowance was necessary. In connection with the acquisition of Opus Bank (“Opus”), the Company acquired Federal Home Loan Mortgage Corporation (“Freddie Mac”) guaranteed structured pass-through certificates, which were issued as a result of Opus’s securitization sale of $509 million in originated multifamily loans through a Freddie Mac-sponsored transaction in December 2016. The Company's continuing involvement includes sub-servicing responsibilities, general representations and warranties, and reimbursement obligations. Servicing responsibilities on loan sales generally include obligations to collect and remit payments of principal and interest, provide foreclosure services, manage payments of taxes and insurance premiums, and otherwise administer the underlying loans. In connection with the securitization transaction, Freddie Mac was designated as the master servicer and appointed the Company to perform sub-servicing responsibilities, which generally include the servicing responsibilities described above with the exception of the servicing of foreclosed or defaulted loans. The overall management, servicing, and resolution of defaulted loans and foreclosed loans are separately designated to the special servicer, a third-party institution that is independent of the master servicer and the Company. The master servicer has the right to terminate the Company in its role as sub-servicer and direct such responsibilities accordingly. To the extent the ultimate resolution of defaulted loans results in contractual principal and interest payments that are deficient, the Company is obligated to reimburse Freddie Mac for such amounts, not to exceed 10% of the original principal amount of the loans comprising the securitization pool at the closing date of December 23, 2016. The liability recorded for Company’s exposure to the reimbursement agreement with Freddie Mac was $345,000 as of September 30, 2024 and December 31, 2023. Loans sold and serviced for others are not included in the accompanying consolidated statements of financial condition. The unpaid principal balance of loans and participations serviced for others was $325.0 million at September 30, 2024 and $373.8 million at December 31, 2023, respectively. Included in those totals are multifamily loans transferred through securitization with Freddie Mac of $42.3 million and $48.0 million at September 30, 2024 and December 31, 2023, respectively, and SBA participations serviced for others of $221.0 million and $258.1 million at September 30, 2024 and December 31, 2023, respectively. Concentration of Credit Risk As of September 30, 2024, the Company’s loan portfolio was primarily collateralized by various forms of real estate and business assets located predominately in California. The Company’s loan portfolio contains concentrations of credit in multifamily, CRE non-owner-occupied, CRE owner-occupied, and C&I business loans. The Bank maintains policies approved by the Bank’s Board of Directors (the “Bank Board”) that address these concentrations and diversifies its loan portfolio through loan originations, purchases, and sales to meet approved concentration levels. Under applicable laws and regulations, the Bank may not make secured loans to one borrower in excess of 25% of the Bank’s unimpaired capital plus surplus, and likewise in excess of 15% of the Bank’s unimpaired capital plus surplus for unsecured loans. These loans-to-one borrower limitations result in a dollar limitation of $835.5 million for secured loans and $501.3 million for unsecured loans at September 30, 2024. In order to manage concentration risk, the Bank maintains a house lending limit well below these statutory maximums. At September 30, 2024, the Bank’s largest aggregate outstanding balance of loans to one borrower was $169.6 million comprised of C&I asset-based lines of credit. Credit Quality and Credit Risk Management The Company’s credit quality and credit risk are controlled in two distinct areas. The first is the loan origination process, wherein the Bank underwrites credit and chooses which types and levels of risk it is willing to accept. The Company maintains a credit policy which addresses many related topics, sets forth maximum tolerances for key elements of loan risk, and indicates appropriate protocols for identifying and analyzing these risk elements. The policy sets forth specific guidelines for analyzing each of the loan products the Company offers from both an individual and portfolio-wide basis. The credit policy is reviewed at least annually by the Bank Board. The Bank’s underwriters ensure all key risk factors are analyzed, with most underwriting including a global cash flow analysis of the prospective borrowers. The second area is in the ongoing oversight of the loan portfolio, where existing credit risk is measured and monitored, and where performance issues are dealt with in a timely and appropriate fashion. Credit risk is monitored and managed within the loan portfolio by the Company’s portfolio managers based on both the credit policy and a credit and portfolio review policy. This latter policy requires a program of financial data collection and analysis, thorough loan reviews, property and/or business inspections, monitoring of portfolio concentrations and trends, and incorporation of current business and economic conditions. The portfolio managers also monitor asset-based lines of credit, loan covenants, and other conditions associated with the Company’s loans as a means to help identify potential credit risk. Most individual loans, excluding the homogeneous loan portfolio, are reviewed at least annually, including the assignment or confirmation of a risk grade. Risk grades are based on a six-grade Pass scale, along with Special Mention, Substandard, Doubtful, and Loss classifications, and such classifications are defined by the federal banking regulatory agencies. The assignment of risk grades allows the Company to, among other things, identify the risk associated with each credit in the portfolio and to provide a basis for estimating credit losses inherent in the portfolio. Risk grades are reviewed regularly with the Company’s Credit and Portfolio Review Committee, and the portfolio management and risk grading process is reviewed on an ongoing basis by both an independent loan review function and periodic internal audits, as well as by regulatory agencies during scheduled examinations. The following provides brief definitions for risk grades assigned to loans in the portfolio: • Pass assets carry an acceptable level of credit quality that contains no well-defined deficiencies or weaknesses. • Special Mention assets do not currently expose the Bank to a sufficient risk to warrant classification in one of the adverse categories, but possess correctable deficiencies or potential weaknesses deserving management’s close attention. • Substandard assets are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. These assets are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. Other real estate owned (“OREO”) acquired through foreclosure is also classified as substandard. • Doubtful assets have all the weaknesses inherent in substandard assets, 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. • Loss assets are those that are considered uncollectible and of such little value that their continuance as assets is not warranted. Amounts classified as loss are promptly charged off. The Bank’s portfolio managers also manage loan performance risks, collections, workouts, bankruptcies, and foreclosures. A special department, whose portfolio managers have professional expertise in these areas, typically handles or advises on these types of matters. Loan performance risks are mitigated by our portfolio managers acting promptly and assertively to address problem credits when they are identified. Collection efforts commence immediately upon non-payment, and the portfolio managers seek to promptly determine the appropriate steps to minimize the Company’s risk of loss. When foreclosure will maximize the Company’s recovery for a non-performing loan, the portfolio managers will take appropriate action to initiate the foreclosure process. When a loan is graded as special mention, substandard, or doubtful, the Company obtains an updated valuation of the underlying collateral. Collateral generally consists of accounts receivable, inventory, fixed assets, real estate properties, and/or cash. The Company typically continues to obtain or confirm updated valuations of underlying collateral for special mention and classified loans on an annual or biennial basis, in accordance with our credit policy, in order to have the most current indication of fair value of the underlying collateral securing the loan. If the loan no longer possesses risk characteristics similar to other loans of a similar type in the loan portfolio, then the loan is evaluated individually to determine an appropriate ACL for the loan. If, through the Company’s credit risk management process, it is determined the ultimate repayment of a loan will come from the foreclosure upon and ultimate sale of the underlying collateral, the loan is deemed collateral dependent. If an individually evaluated loan is not considered collateral dependent, the associated ACL is determined through the use of a discounted cash flow analysis. The following table stratifies the loans held for investment portfolio by the Company’s internal risk grading, and by year of origination, as well as the gross charge-offs on a year-to-date basis by year of origination as of September 30, 2024: Term Loans by Vintage (Dollars in thousands) 2024 2023 2022 2021 2020 Prior Revolving Revolving Converted to Term During the Period Total September 30, 2024 Investor loans secured by real estate CRE non-owner-occupied Pass $ 50,743 $ 31,134 $ 449,405 $ 503,642 $ 164,952 $ 963,283 $ — $ — $ 2,163,159 Special mention — — — — — 2,471 — — 2,471 Substandard 16,089 — 11,549 — 5,784 3,216 — — 36,638 Multifamily Pass 14,921 171,585 1,163,753 1,954,025 679,920 1,369,933 — — 5,354,137 Special mention — — — 3,098 18,949 12,663 — — 34,710 Construction and land Pass 18,613 67,378 282,353 71,328 2,219 3,255 — — 445,146 SBA secured by real estate Pass — — 6,399 — 494 18,008 — — 24,901 Special mention — — — — — 1,125 — — 1,125 Substandard — — — 131 — 6,071 — — 6,202 Total investor loans secured by real estate 100,366 270,097 1,913,459 2,532,224 872,318 2,380,025 — — 8,068,489 Year-to-date gross charge-offs — — — 29 11,539 1,333 — — 12,901 Business loans secured by real estate CRE owner-occupied Pass 30,052 20,963 525,968 615,978 214,189 579,769 — — 1,986,919 Special mention — — 1,235 — — 15,936 918 — 18,089 Substandard — — — — — 33,575 — — 33,575 Franchise real estate secured Pass 1,205 9,693 40,846 104,623 23,827 81,432 — — 261,626 Special mention — — — — — 1,560 — — 1,560 Substandard — — — — — 1,510 — — 1,510 SBA secured by real estate Pass 243 110 9,744 7,052 1,209 22,415 — — 40,773 Substandard — — — — — 3,170 — — 3,170 Total loans secured by business real estate 31,500 30,766 577,793 727,653 239,225 739,367 918 — 2,347,222 Year-to-date gross charge-offs — 93 3,345 581 1,152 645 — — 5,816 Commercial loans Commercial and industrial Pass 37,384 39,403 128,947 136,119 33,882 224,276 671,901 3,942 1,275,854 Special mention 816 628 — 45 177 7 10,378 342 12,393 Substandard — 1,139 9,235 4,335 340 872 9,464 — 25,385 Doubtful — — 2,885 — — — — — 2,885 Term Loans by Vintage (Dollars in thousands) 2024 2023 2022 2021 2020 Prior Revolving Revolving Converted to Term During the Period Total September 30, 2024 Franchise non-real estate secured Pass $ 11 $ 6,982 $ 58,598 $ 82,272 $ 9,274 $ 69,601 $ — $ — $ 226,738 Special mention — — — — — 557 — — 557 Substandard — — 1,190 — — 9,217 — — 10,407 SBA non-real estate secured Pass 307 361 4,261 327 — 2,439 — — 7,695 Substandard — — 500 — 130 82 — — 712 Total commercial loans 38,518 48,513 205,616 223,098 43,803 307,051 691,743 4,284 1,562,626 Year-to-date gross charge-offs — 466 212 182 41 22 1,975 — 2,898 Retail loans Single family residential Pass — 11 — — 160 40,477 30,904 — 71,552 Consumer loans Pass 57 — — 2 2 391 909 — 1,361 Total retail loans 57 11 — 2 162 40,868 31,813 — 72,913 Year-to-date gross charge-offs 5 1 7 1 — 869 — — 883 Loans held for investment before basis adjustment (1) $ 170,441 $ 349,387 $ 2,696,868 $ 3,482,977 $ 1,155,508 $ 3,467,311 $ 724,474 $ 4,284 $ 12,051,250 Total Year-to-date gross charge-offs $ 5 $ 560 $ 3,564 $ 793 $ 12,732 $ 2,869 $ 1,975 $ — $ 22,498 ______________________________ (1) Excludes the basis adjustment of $16.2 million to the carrying amount of certain loans included in fair value hedging relationships. Refer to Note 11 – Derivative Instruments for additional information. The following table stratifies the loans held for investment portfolio by the Company’s internal risk grading, and by year of origination, as of December 31, 2023: Term Loans by Vintage (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Revolving Converted to Term During the Period Total December 31, 2023 Investor loans secured by real estate CRE non-owner-occupied Pass $ 71,452 $ 482,045 $ 549,828 $ 192,399 $ 315,139 $ 795,856 $ — $ — $ 2,406,719 Special mention — 3,811 2,530 — — 625 — — 6,966 Substandard — 412 — — — 7,675 — — 8,087 Multifamily Pass 179,055 1,184,329 2,008,126 725,123 822,411 714,638 — — 5,633,682 Special mention — — — — — 11,628 — — 11,628 Construction and land Pass 59,993 309,677 94,845 2,223 2,368 3,438 — — 472,544 SBA secured by real estate Pass $ — $ 6,478 $ — $ 493 $ 4,804 $ 16,496 $ — $ — $ 28,271 Substandard — — 131 — 536 7,462 — — 8,129 Total investor loans secured by real estate 310,500 1,986,752 2,655,460 920,238 1,145,258 1,557,818 — — 8,576,026 Term Loans by Vintage (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Revolving Converted to Term During the Period Total December 31, 2023 Year-to-date gross charge-offs $ — $ — $ 217 $ — $ 1,582 $ 3,653 $ — $ — $ 5,452 Business loans secured by real estate CRE owner-occupied Pass 19,014 543,413 660,967 224,333 211,283 458,975 — — 2,117,985 Special mention — 16,535 — 476 4,775 11,775 919 — 34,480 Substandard — 15,539 2,162 5,505 3,873 11,790 — — 38,869 Franchise real estate secured Pass 10,580 39,239 124,424 25,697 15,731 72,342 — — 288,013 Special mention 1,758 3,603 1,903 — 795 1,615 — — 9,674 Substandard — 3,964 — — 2,571 292 — — 6,827 SBA secured by real estate Pass 113 9,334 7,634 1,979 4,109 22,417 — — 45,586 Special mention — 536 — — — 83 — — 619 Substandard — — — — — 4,536 — — 4,536 Total loans secured by business real estate 31,465 632,163 797,090 257,990 243,137 583,825 919 — 2,546,589 Year-to-date gross charge-offs — — 318 191 — 1,861 — — 2,370 Commercial loans Commercial and industrial Pass 46,765 172,987 160,275 40,988 110,526 146,310 966,733 6,518 1,651,102 Special mention 239 23,242 12,270 367 16 2,139 42,570 407 81,250 Substandard 425 8,052 2,689 588 173 1,138 26,462 14,187 53,714 Doubtful and loss — — — — — — — 4,542 4,542 Franchise non-real estate secured Pass 6,801 74,441 112,112 16,355 34,770 53,957 — 753 299,189 Special mention 433 845 1,633 — 627 692 — — 4,230 Substandard — 1,646 322 2,324 10,451 1,559 — — 16,302 SBA non-real estate secured Pass 1,075 4,485 343 113 1,464 2,490 — — 9,970 Substandard — 527 — 141 53 235 — — 956 Total commercial loans 55,738 286,225 289,644 60,876 158,080 208,520 1,035,765 26,407 2,121,255 Year-to-date gross charge-offs 132 3,053 62 5 362 37 6,387 503 10,541 Retail loans Single family residential Pass 20 — — 167 — 44,104 28,461 — 72,752 Consumer loans Pass — — 3 9 5 788 1,144 — 1,949 Total retail loans 20 — 3 176 5 44,892 29,605 — 74,701 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 983 $ 3 $ — $ 986 Loans held for investment before basis adjustment (1) $ 397,723 $ 2,905,140 $ 3,742,197 $ 1,239,280 $ 1,546,480 $ 2,395,055 $ 1,066,289 $ 26,407 $ 13,318,571 Total Year-to-date gross charge-offs $ 132 $ 3,053 $ 597 $ 196 $ 1,944 $ 6,534 $ 6,390 $ 503 $ 19,349 ______________________________ (1) Excludes the basis adjustment of $29.6 million to the carrying amount of certain loans included in fair value hedging relationships. Refer to Note 11 – Derivative Instruments for additional information. The following tables stratify the loans held for investment portfolio by delinquency as of the periods indicated: Days Past Due (2) (Dollars in thousands) Current 30-59 60-89 90+ Total September 30, 2024 Investor loans secured by real estate CRE non-owner-occupied $ 2,201,885 $ — $ — $ 383 $ 2,202,268 Multifamily 5,388,847 — — — 5,388,847 Construction and land 445,146 — — — 445,146 SBA secured by real estate 30,926 1,115 — 187 32,228 Total investor loans secured by real estate 8,066,804 1,115 — 570 8,068,489 Business loans secured by real estate CRE owner-occupied 2,034,009 — — 4,574 2,038,583 Franchise real estate secured 264,696 — — — 264,696 SBA secured by real estate 43,943 — — — 43,943 Total business loans secured by real estate 2,342,648 — — 4,574 2,347,222 Commercial loans Commercial and industrial 1,313,441 893 715 1,468 1,316,517 Franchise non-real estate secured 237,702 — — — 237,702 SBA not secured by real estate 7,876 — — 531 8,407 Total commercial loans 1,559,019 893 715 1,999 1,562,626 Retail loans Single family residential 71,552 — — — 71,552 Consumer loans 1,361 — — — 1,361 Total retail loans 72,913 — — — 72,913 Loans held for investment before basis adjustment (1) $ 12,041,384 $ 2,008 $ 715 $ 7,143 $ 12,051,250 December 31, 2023 Investor loans secured by real estate CRE non-owner-occupied $ 2,421,360 $ — $ — $ 412 $ 2,421,772 Multifamily 5,645,310 — — — 5,645,310 Construction and land 472,544 — — — 472,544 SBA secured by real estate 35,980 — — 420 36,400 Total investor loans secured by real estate 8,575,194 — — 832 8,576,026 Business loans secured by real estate CRE owner-occupied 2,186,679 — — 4,655 2,191,334 Franchise real estate secured 304,222 292 — — 304,514 SBA secured by real estate 50,604 137 — — 50,741 Total business loans secured by real estate 2,541,505 429 — 4,655 2,546,589 Commercial loans Commercial and industrial 1,788,855 228 1,294 231 1,790,608 Franchise non-real estate secured 318,162 1,559 — — 319,721 SBA not secured by real estate 10,119 249 — 558 10,926 Total commercial loans 2,117,136 2,036 1,294 789 2,121,255 Retail loans Single family residential 72,733 19 — — 72,752 Consumer loans 1,949 — — — 1,949 Total retail loans 74,682 19 — — 74,701 Loans held for investment before basis adjustment (1) $ 13,308,517 $ 2,484 $ 1,294 $ 6,276 $ 13,318,571 ______________________________ (1) Excludes the basis adjustment of $16.2 million and $29.6 million to the carrying amount of certain loans included in fair value hedging relationships as of September 30, 2024 and December 31, 2023, respectively. Refer to Note 11 – Derivative Instruments for additional information. (2) Nonaccrual loans are included in this aging analysis based on the loan’s past due status. Individually Evaluated Loans The Company evaluates loans collectively for purposes of determining the ACL in accordance with ASC 326. Collective evaluation is based on aggregating loans deemed to possess similar risk characteristics. In certain instances, the Company may identify loans that it believes no longer possess risk characteristics similar to other loans in the portfolio. These loans are typically identified from a substandard or worse internal risk grade, since the specific attributes and risks associated with such loans tend to become unique as the credit deteriorates. Such loans are typically nonperforming, can be modified loans made to borrowers experiencing financial difficulty, and/or are deemed collateral dependent, where the ultimate repayment of the loan is expected to come from the operation of or eventual sale of the collateral. Loans that are deemed by management to no longer possess risk characteristics similar to other loans in the portfolio are evaluated individually for purposes of determining an appropriate lifetime ACL. The Company uses a discounted cash flow approach, using the loan’s effective interest rate, for determining the ACL on individually evaluated loans, unless the loan is deemed collateral dependent, which requires evaluation based on the estimated fair value of the underlying collateral, less estimated costs to sell. The Company may increase or decrease the ACL for collateral dependent individually evaluated loans based on changes in the estimated expected fair value of the collateral. Changes in the ACL for all other individually evaluated loans is based substantially on the Company’s evaluation of cash flows expected to be received from such loans. As of September 30, 2024, $39.1 million of loans were individually evaluated with a $752,000 ACL attributed to such loans. At September 30, 2024, $28.1 million of individually evaluated loans were evaluated based on the underlying value of the collateral, and $10.9 million were evaluated using a discounted cash flow approach. All individually evaluated loans were on nonaccrual status at September 30, 2024. As of December 31, 2023, $24.8 million of loans were individually evaluated with no ACL attributed to such loans. At December 31, 2023, $12.2 million of individually evaluated loans were evaluated based on the underlying value of the collateral, and $12.6 million were evaluated using a discounted cash flow approach. All individually evaluated loans were on nonaccrual status at December 31, 2023. The increase in individually evaluated loans during the nine months ended September 30, 2024 was primarily driven by a single, diversified commercial banking relationship with CRE non-owner-occupied loans totaling $18.0 million as of September 30, 2024. Purchased Credit Deteriorated Loans The Company analyzed acquired loans for more-than-insignificant deterioration in credit quality since their origination. Such loans are classified as purchased credit deteriorated (“PCD”) loans. Please see Note 1 - Description of Business and Summary of Significant Accounting Policies of our audited consolidated financial statements included in our 2023 Form 10-K for more information concerning the accounting for PCD loans. The Company had PCD loans of $296.1 million and $359.3 million at September 30, 2024 and December 31, 2023, respectively. Acquired loans classified as PCD are recorded at an initial amortized cost, which is comprised of the purchase price of the loans (or initial fair value) and the initial ACL determined for the loans, which is added to the purchase price, as well as any resulting discount or premium related to factors other than credit. The Company accounts for interest income on PCD loans using the interest method, whereby any purchase discounts or premiums are accreted or amortized into interest income as an adjustment of the loan’s yield. Subsequent to acquisition, the ACL for PCD loans is measured in accordance with the Company’s ACL methodology. Please also see Note 6 – Allowance for Credit Losses for more information concerning the Company’s ACL methodology. Nonaccrual Loans When loans are placed on nonaccrual status, previously accrued but unpaid interest is reversed from current period earnings. Payments received on nonaccrual loans are generally applied as a reduction to the loan principal balance. If the likelihood of further loss is remote, the Company may recognize interest on a cash basis. Loans may be returned to accruing status if the Company believes that all remaining principal and interest is fully collectible and there has been at least three months of sustained repayment performance since the loan was placed on nonaccrual. The Company typically does not accrue interest on loans 90 days or more past due or when, in the opinion of management, there is reasonable doubt as to the timely collection of principal or interest regardless of the length of past due status. However, when such loans are well-secured and in the process of collection, the Company may continue with the accrual of interest. The Company had loans on nonaccrual status of $39.1 million at September 30, 2024 and $24.8 million at December 31, 2023. The increase in nonaccrual loans at September 30, 2024 was primarily the result of a single, diversified commercial banking relationship with CRE non-owner occupied loans totaling $18.0 million, which were current as of September 30, 2024. The Company did not record income from the receipt of cash payments related to nonaccruing loans during the three and nine months ended September 30, 2024 and 2023. The Company had no loans 90 days or more past due and still accruing at September 30, 2024 and December 31, 2023. The following tables provide a summary of nonaccrual loans as of the dates indicated: Nonaccrual Loans (1) Collateral Dependent Loans Non-Collateral Dependent Loans Total Nonaccrual Loans Nonaccrual Loans with No ACL (Dollars in thousands) Balance ACL Balance ACL September 30, 2024 Investor loans secured by real estate CRE non-owner-occupied $ 19,042 $ — $ — $ — $ 19,042 $ 19,042 SBA secured by real estate 1,725 559 — — 1,725 610 Total investor loans secured by real estate 20,767 559 — — 20,767 19,652 Business loans secured by real estate CRE owner-occupied 4,574 — — — 4,574 4,574 Total business loans secured by real estate 4,574 — — — 4,574 4,574 Commercial loans Commercial and industrial 2,274 193 10,938 — 13,212 13,019 SBA non-real estate secured 531 — — — 531 531 Total commercial loans 2,805 193 10,938 — 13,743 13,550 Total nonaccrual loans $ 28,146 $ 752 $ 10,938 $ — $ 39,084 $ 37,776 Nonaccrual Loans (1) (Dollars in thousands) Collateral Dependent Loans ACL Non-Collateral Dependent Loans ACL Total Nonaccrual Loans Nonaccrual Loans with No ACL December 31, 2023 Investor loans secured by real estate CRE non-owner-occupied $ 412 $ — $ — $ — $ 412 $ 412 SBA secured by real estate 1,205 — — — 1,205 1,205 Total investor loans secured by real estate 1,617 — — — 1,617 1,617 Business loans secured by real estate CRE owner-occupied 8,666 — — — 8,666 8,666 Total business loans secured by real estate 8,666 — — — 8,666 8,666 Commercial loans Commercial and industrial 1,381 — 12,595 — 13,976 13,976 SBA non-real estate secured 558 — — — 558 558 Total commercial loans 1,939 — 12,595 — 14,534 14,534 Total nonaccrual loans $ 12,222 $ — $ 12,595 $ — $ 24,817 $ 24,817 ______________________________ (1) The ACL for nonaccrual loans is determined based on a discounted cash flow methodology unless the loan is considered collateral dependent; otherwise, the ACL for collateral dependent nonaccrual loans is determined based on the estimated fair value of the underlying collateral. Residential Real Estate Loans In Process of Foreclosure The Company had no consumer mortgage loans collateralized by residential real estate property for which formal foreclosure proceedings were in process as of September 30, 2024 and December 31, 2023. Modified Loans to Troubled Borrowers On January 1, 2023, the Company adopted ASU 2022-02, Financial Instruments - Credit Losses (Topic 326) Troubled Debt Restructurings and Vintage Disclosures, which introduces new reporting requirements for modifications of loans to borrowers experiencing financial difficulty. The Company also refers to these loans as modified loans to troubled borrowers (“MLTB”). An MLTB arises from a modification made to a loan in order to alleviate temporary difficulties in the borrower’s financial condition and/or constraints on the borrower’s ability to repay the loan, and to minimize potential losses to the Company. GAAP requires that certain types of modifications be reported, which consist of the following: (i) principal forgiveness, (ii) interest rate reduction, (iii) other-than-insignificant payment delay, (iv) term extension, or any combination of the foregoing. The ACL for an MLTB is measured on a collectiv

Allowance for Credit Losses

Allowance for Credit Losses	9 Months Ended
	Sep. 30, 2024
Allowance for Credit Loss [Abstract]
Allowance for Credit Losses	Allowance for Credit Losses The Company maintains an ACL for loans and unfunded loan commitments in accordance with ASC 326 - Financial Instruments - Credit Losses . ASC 326 requires the Company to initially recognize estimates for lifetime credit losses on loans and unfunded loan commitments at the time of origination or acquisition. The recognition of credit losses represents the Company’s best estimate of lifetime expected credit losses, given the facts and circumstances associated with a particular loan or group of loans with similar risk characteristics. Determining the ACL involves the use of significant management judgement and estimates, which are subject to change based on management’s ongoing assessment of the credit quality of the loan portfolio and changes in economic forecasts used in the Company’s ACL model. The Company uses a discounted cash flow model when determining estimates for the ACL for commercial real estate loans and commercial loans, which comprise the majority of the loan portfolio, and uses a historical loss rate model for retail loans. The Company also utilizes proxy loan data in its ACL model where the Company’s own historical data is not sufficiently available. The discounted cash flow model is applied on an instrument-by-instrument basis, and for loans with similar risk characteristics, to derive estimates for the lifetime ACL for each loan. The discounted cash flow methodology relies on several significant components essential to the development of estimates for future cash flows on loans and unfunded loan commitments. These components consist of: (i) the estimated probability of default (“PD”), (ii) the estimated loss given default (“LGD”), which represents the estimated severity of the loss when a loan is in default, (iii) estimates for prepayment activity on loans, and (iv) the estimated exposure to the Company at default (“EAD”). The PD and LGD are heavily influenced by changes in economic forecasts and key variables employed in the model as well as our portfolio performance and composition over a reasonable and supportable period. The Company’s ACL methodology for unfunded loan commitments also includes assumptions concerning the probability an unfunded commitment will be drawn upon by the borrower. These assumptions are based on the Company’s historical experience. The Company’s discounted cash flow ACL model for CRE and commercial loans uses internally derived estimates for prepayments in determining the amount and timing of future contractual cash flows expected to be collected. The estimate of future cash flows also incorporates estimates for contractual amounts the Company believes may not be collected, which are based on assumptions for PD, LGD, and EAD. The EAD is determined by the contractual payment schedule and expected payment profile of the loan, incorporating estimates for expected prepayments and future draws on revolving credit facilities. The Company discounts cash flows using the effective interest rate on the loan. The effective interest rate represents the contractual rate on the loan; adjusted for any purchase premiums, or discounts, and deferred fees and costs associated with an originated loan. The Company has made an accounting policy election to adjust the effective interest rate to take into consideration the effects of estimated prepayments. The ACL for loans is determined by measuring the amount by which a loan’s amortized cost exceeds its discounted cash flows expected to be collected. The ACL for credit facilities is determined by discounting estimates for cash flows not expected to be collected. Probability of Default The PD for investor loans secured by real estate is based largely on a model provided by a third party, using proxy loan information. The PDs generated by this model are reflective of current and expected economic conditions in the commercial real estate market, and how they are expected to impact loan level and property level attributes, and ultimately the likelihood of a default event occurring. This model incorporates assumptions for PD at a loan’s maturity. Significant loan and property level attributes include: loan-to-value (“LTV”) ratios, debt service coverage ratios, loan size, loan vintage, and property types. The PD for business loans secured by real estate and commercial loans is based on an internally developed PD rating scale that assigns PDs based on the Company’s internal credit risk grades for loans. This internally developed PD rating scale is based on a combination of the Company’s own historical data and observed historical data from the Company’s peers, which consist of banks that management believes align with our business profile. As credit risk grades change for these loans, the PD assigned to them also changes. As with investor loans secured by real estate, the PD for business loans secured by real estate and commercial loans is also impacted by current and expected economic conditions, including U.S. GDP growth and U.S. unemployment rate forecasts. The Company considers loans to be in default when they are 90 days or more past due or placed on nonaccrual status. Loss Given Default LGDs for commercial real estate loans are derived from a third party, using proxy loan information, and are based on loan and property level characteristics for loans in the Company’s loan portfolio, such as: LTV ratios, estimated time to resolution, property size, and current and estimated future market price changes for underlying collateral. LGDs are highly dependent upon LTV ratios, and incorporate estimates for the expenses associated with managing the loans through to resolution. LGDs also incorporate an estimate for the loss severity associated with loans where the borrower fails to meet their debt obligation at maturity, such as through a balloon payment or the refinancing of the loan through another lender. External factors that have an impact on LGDs include: changes in the index for CRE pricing, GDP growth rate, unemployment rates, and the Consumer Price Index. LGDs are applied to each loan in the commercial real estate portfolio, and in conjunction with the PD, produce estimates for net cash flows not expected to be collected over the estimated term of the loan. LGDs for commercial loans are also derived from a third party that has a considerable database of credit related information specific to the financial services industry and the type of loans within this segment, and is used to generate annual default information for commercial loans. These proxy LGDs are dependent upon data inputs such as credit quality, borrower industry, region, borrower size, and debt seniority, as well as external factors, including GDP growth rate and unemployment rates. LGDs are then applied to each loan in the commercial segment, and in conjunction with the PD, produce estimates for net cash flows not expected to be collected over the estimated term of the loan. Historical Loss Rates for Retail Loans The historical loss rate model for retail loans is derived from a third party that has a considerable database of credit related information for retail loans. Key loan level attributes and economic drivers in determining the loss rate for retail loans include FICO scores, vintage, as well as geography, unemployment rates, and changes in consumer real estate prices. Economic Forecasts In order to develop reasonable and supportable forecasts of future conditions, the Company estimates how those forecasts are expected to impact a borrower’s ability to satisfy their obligation to the Bank and the ultimate collectability of future cash flows over the life of a loan. The Company uses macroeconomic scenarios from an independent third party, which are based on past events, current conditions, and the likelihood of future events occurring. These scenarios are typically comprised of: a base-case scenario, an upside scenario, representing slightly better economic conditions than currently experienced and, a downside scenario, representing recessionary conditions. Management evaluates appropriateness of economic scenarios and may decide that a particular economic scenario or a combination of probability-weighted economic scenarios should be used in the Company’s ACL model. The economic scenarios chosen for the model, the extent to which more than one scenario is used, and the weights that are assigned to them, are based on the likelihood that the economy would perform better than each scenario, which is based in part on analysis performed by an independent third party. Economic scenarios chosen, as well as the assumptions within those scenarios, and whether to use a probability-weighted multiple scenario approach, can vary from one period to the next based on changes in current and expected economic conditions, and due to the occurrence of specific events. The Company’s ACL model at September 30, 2024 includes assumptions concerning the interest rate environment, general uncertainty concerning future economic conditions, and the potential for recessionary conditions. The Company currently forecasts PDs and LGDs based on economic scenarios over a two-year period, which we believe is a reasonable and supportable period. Beyond this point, PDs and LGDs revert to their long-term averages. The Company has reflected this reversion over a period of three years in each of its economic scenarios used to generate the overall probability-weighted forecast. Changes in economic forecasts impact the PD, LGD, and EAD for each loan, and therefore influence the amount of future cash flows the Company does not expect to collect for each loan. It is important to note that the Company’s ACL model relies on multiple economic and model variables, which are used in several economic scenarios. Although no one variable can fully demonstrate the sensitivity of the ACL calculation to changes in the economic variables used in the model, the Company has identified certain economic variables that have significant influence in the Company’s model for determining the ACL. These key economic variables include forecasted changes in the U.S. unemployment rate, U.S. real GDP growth, CRE prices, and interest rates. Qualitative Adjustments The Company recognizes that historical information used as the basis for determining future expected credit losses may not always, by itself, provide a sufficient basis for determining future expected credit losses. The Company, therefore, considers the need for qualitative adjustments to the ACL on a quarterly basis. Qualitative adjustments may be related to and include, but not be limited to, factors such as: (i) management’s assessment of economic forecasts used in the model and how those forecasts align with management’s overall evaluation of current and expected economic conditions, (ii) organization specific risks such as credit concentrations, collateral specific risks, regulatory risks, and external factors that may ultimately impact credit quality, (iii) potential model limitations such as limitations identified through back-testing, and other limitations associated with factors such as underwriting changes, acquisition of new portfolios, and changes in portfolio segmentation, and (iv) management’s overall assessment of the adequacy of the ACL, including an assessment of model data inputs used to determine the ACL. Qualitative adjustments primarily relate to certain segments of the loan portfolio deemed by management to be of potentially higher-risk profiles or other factors where management believes the quantitative component of the Company’s ACL model may not be fully reflective of levels deemed adequate in the judgement of management. Certain qualitative adjustments also relate to heightened uncertainty as to future macroeconomic conditions and the related impact on certain loan segments. Management reviews the need for an appropriate level of qualitative adjustments on a quarterly basis, and as such, the amount and allocation of qualitative adjustments may change in future periods. The following tables provide the allocation of the ACL for loans held for investment as well as the activity in the ACL attributed to various segments in the loan portfolio as of, and for the periods indicated: Three Months Ended September 30, 2024 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending ACL Balance Investor loans secured by real estate CRE non-owner-occupied $ 29,738 $ — $ — $ (464) $ 29,274 Multifamily 57,298 — — 8,667 65,965 Construction and land 10,804 — — 180 10,984 SBA secured by real estate 2,142 — — 457 2,599 Business loans secured by real estate CRE owner-occupied 28,531 (1,152) — 580 27,959 Franchise real estate secured 6,794 — — (1,680) 5,114 SBA secured by real estate 4,134 — — (490) 3,644 Commercial loans Commercial and industrial 32,257 (1,239) 2 (6,038) 24,982 Franchise non-real estate secured 11,130 — 125 (1,357) 9,898 SBA non-real estate secured 482 — 5 (139) 348 Retail loans Single family residential 399 — — (11) 388 Consumer loans 94 (48) 1 46 93 Totals $ 183,803 $ (2,439) $ 133 $ (249) $ 181,248 Nine Months Ended September 30, 2024 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner occupied $ 31,030 $ (5,123) $ 1,500 $ 1,867 $ 29,274 Multifamily 56,312 (7,372) 5 17,020 65,965 Construction and land 9,314 — — 1,670 10,984 SBA secured by real estate 2,182 (406) 86 737 2,599 Business loans secured by real estate CRE owner-occupied 28,787 (5,604) 184 4,592 27,959 Franchise real estate secured 7,499 (212) — (2,173) 5,114 SBA secured by real estate 4,427 — 2 (785) 3,644 Commercial loans Commercial and industrial 36,692 (2,792) 189 (9,107) 24,982 Franchise non-real estate secured 15,131 (100) 1,500 (6,633) 9,898 SBA non-real estate secured 458 (6) 10 (114) 348 Retail loans Single family residential 505 — 3 (120) 388 Consumer loans 134 (883) 1 841 93 Totals $ 192,471 $ (22,498) $ 3,480 $ 7,795 $ 181,248 Three Months Ended September 30, 2023 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner-occupied $ 31,545 $ — $ 51 $ (13) $ 31,583 Multifamily 55,648 — — (427) 55,221 Construction and land 7,707 — — 799 8,506 SBA secured by real estate 2,331 (108) — (24) 2,199 Business loans secured by real estate CRE owner-occupied 28,515 — 12 559 29,086 Franchise real estate secured 6,855 — — 711 7,566 SBA secured by real estate 4,511 — 128 (77) 4,562 Commercial loans Commercial and industrial 39,586 (7,386) 565 (268) 32,497 Franchise non-real estate secured 14,642 — 50 1,087 15,779 SBA non-real estate secured 399 (67) 3 137 472 Retail loans Single family residential 455 — — 36 491 Consumer loans 139 — — (3) 136 Totals $ 192,333 $ (7,561) $ 809 $ 2,517 $ 188,098 Nine Months Ended September 30, 2023 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner-occupied $ 33,692 $ (2,657) $ 66 $ 482 $ 31,583 Multifamily 56,334 (290) 1 (824) 55,221 Construction and land 7,114 — — 1,392 8,506 SBA secured by real estate 2,592 (108) — (285) 2,199 Business loans secured by real estate CRE owner-occupied 32,340 (2,370) 36 (920) 29,086 Franchise real estate secured 7,019 — — 547 7,566 SBA secured by real estate 4,348 — 208 6 4,562 Commercial loans Commercial and industrial 35,169 (8,734) 945 5,117 32,497 Franchise non-real estate secured 16,029 — 150 (400) 15,779 SBA non-real estate secured 441 (67) 68 30 472 Retail loans Single family residential 352 (90) 1 228 491 Consumer loans 221 (895) 35 775 136 Totals $ 195,651 $ (15,211) $ 1,510 $ 6,148 $ 188,098 The decrease in the ACL for loans held for investment during the three months ended September 30, 2024 of $2.6 million was reflective of $2.3 million in net charge-offs, and a $249,000 reversal of provision for credit losses. During the nine months ended September 30, 2024, the ACL for loans held for investment decreased $11.2 million, which was reflective of $19.0 million in net charge-offs, partially offset by $7.8 million in provision for credit losses. During the three months ended September 30, 2024, the reversal of provision for credit losses was principally driven by declines in the balances of commercial loans and business loans secured by real estate. The reversal of provision for credit losses in these segments was partially offset by provision for credit losses in the investor loans secured by real estate segment, driven in large part by changes associated with economic forecasts and, partially offset by a decline in balances for loans within this segment. During the nine months ended September 30, 2024, the provision for credit losses was attributed in large part to the impact of changes in economic forecasts and the associated impact on investor loans secured by real estate, with the largest impact attributed to multifamily loans and CRE non-owner-occupied loans, as well as business loans secured by real estate. The provision for credit losses for loans within these segments attributable to the impact from changes in economic forecasts was partially offset by declines in the balances of those loans and changes in asset quality for investor loans secured by real estate. The provision for credit losses in these segments was partially offset by a reversal of provision for credit losses in the commercial loans segment, which was principally driven by declines in the balances for those loans. Charge-offs during the three months ended September 30, 2024 were largely due to a $1.2 million charge-off associated with the sale of one CRE owner-occupied loan, as well as charge-offs of various other C&I and consumer loans. In addition to the charge-offs recorded during the third quarter of 2024, charge-offs for the nine months ended September 30, 2024 were largely attributed to $11.5 million in charge-offs related to the sale of a substandard multifamily loan and a substandard non-owner-occupied CRE loan during the second quarter of 2024, as well as $5.7 million in charge-offs associated with the sale of various special mention and substandard CRE and franchise loans during the first quarter of 2024. The decrease in the ACL for loans held for investment during the three months ended September 30, 2023 of $4.2 million was reflective of $6.8 million in net charge-offs, partially offset by $2.5 million in provision for credit losses. The provision for credit losses during the three months ended September 30, 2023 was largely attributed to changes in economic forecasts, partially offset by a decrease in the balance of loans held for investment across various segments in the loan portfolio. For the nine months ended September 30, 2023, the ACL decreased $7.6 million. The decline in the ACL during this period was reflective of $13.7 million in net charge-offs, partially offset by $6.1 million in provision for credit losses. The provision for credit losses during the nine months ended September 30, 2023 was largely attributed to changes in economic forecasts, as well as changes in asset quality, partially offset by a decrease in loans held for investment across various segments in the loan portfolio. Charge-offs during the three months ended September 30, 2023 were largely attributed to one C&I lending relationship that already had a specific reserve as well as two syndicated C&I loans to one lending relationship that were modified with a partial charge-off. Charge-offs during the nine months ended September 30, 2023 were largely attributed to two C&I lending relationships, one CRE non-owner-occupied lending relationship, and one CRE owner-occupied lending relationship. Allowance for Credit Losses for Off-Balance Sheet Commitments The Company maintains an ACL for off-balance sheet commitments related to unfunded loans and lines of credit, which is included in other liabilities of the consolidated statements of financial condition. The allowance for off-balance sheet commitments was $17.1 million at September 30, 2024, an increase of $760,000 from $16.3 million at June 30, 2024, and a decrease of $2.2 million from December 31, 2023. During the three months ended September 30, 2024, the provision expense for off-balance sheet commitments was largely attributable to slightly higher loss rates for C&I loans, partially offset by a decrease in the balance of unfunded commitments during the quarter. The provision reversal for off-balance sheet commitments during the nine months ended September 30, 2024 was attributed largely to overall lower levels of unfunded commitments during the period. During the three months ended September 30, 2023, the provision expense for off-balance sheet commitments of $1.4 million was attributable, in large part, to changes in economic forecasts, partially offset by a decline in the balance of unfunded commitments. The provision expense during the nine months ended September 30, 2023 was largely attributed to economic forecasts, partially offset by changes in the mix of unfunded commitments between various loan segments, and a decrease in the balance of unfunded commitments. The following table summarizes the activities in the ACL for off-balance sheet commitments for the periods indicated: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Beginning ACL balance $ 16,334 $ 24,455 $ 19,264 $ 23,641 Provision for credit losses on off-balance sheet commitments 760 1,386 (2,170) 2,200 Ending ACL balance $ 17,094 $ 25,841 $ 17,094 $ 25,841

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The Company had goodwill of $901.3 million at September 30, 2024 and December 31, 2023. The Company did not record any adjustments to goodwill during the three months ended September 30, 2024 and September 30, 2023. The Company’s policy is to assess goodwill for impairment on an annual basis during the fourth quarter of each year, and more frequently if events or circumstances lead management to believe the value of goodwill may be impaired. Other intangible assets with definite lives were $34.9 million at September 30, 2024, consisting of $33.1 million in core deposit intangibles and $1.8 million in customer relationship intangibles. At December 31, 2023, other intangibles assets were $43.3 million, consisting of $41.2 million in core deposit intangibles and $2.1 million in customer relationship intangibles. The following table summarizes the change in the balances of core deposit and customer relationship intangible assets, and the related accumulated amortization for the periods indicated below: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Gross amount of intangible assets: Beginning balance $ 145,212 $ 145,212 $ 145,212 $ 145,212 Additions due to acquisitions — — — — Ending balance 145,212 145,212 145,212 145,212 Accumulated amortization: Beginning balance (107,526) (95,850) (101,927) (89,624) Amortization (2,762) (3,055) (8,361) (9,281) Ending balance (110,288) (98,905) (110,288) (98,905) Net intangible assets $ 34,924 $ 46,307 $ 34,924 $ 46,307 The Company amortizes core deposit intangibles and customer relationship intangibles based on the projected useful lives of the related deposits in the case of core deposit intangibles, and over the projected useful lives of the related client relationships in the case of customer relationship intangibles. The amortization periods typically range from six

Subordinated Debentures

Subordinated Debentures	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Subordinated Debentures	Subordinated Debentures As of September 30, 2024, the Company had two subordinated notes with an aggregate carrying value of $272.3 million with a weighted interest rate of 6.58%, compared to $331.8 million with a weighted interest rate of 5.31% at December 31, 2023. The decrease of $59.5 million was primarily due to the maturity of $60.0 million of subordinated notes on September 3, 2024, partially offset by the amortization of debt issuance costs. The following table summarizes our outstanding subordinated debentures as of the dates indicated: Carrying Value (Dollars in thousands) Stated Maturity Current Interest Rate Current Principal Balance September 30, 2024 December 31, 2023 Subordinated notes Subordinated notes due 2024, 5.75% per annum September 3, 2024 — % $ — $ — $ 59,910 Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month term SOFR +2.762% thereafter May 15, 2029 7.880 % 125,000 123,832 123,641 Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month term SOFR +5.17% thereafter June 15, 2030 5.375 % 150,000 148,488 148,291 Total subordinated debentures $ 275,000 $ 272,320 $ 331,842 Upon the cessation of LIBOR on June 30, 2023, the LIBOR-based benchmark rate after May 15, 2024 for our subordinated notes due 2029 transitioned to 3-month term SOFR as successor base rate plus the relevant spread adjustment. In connection with the various issuances of subordinated notes, the Corporation obtained ratings from Kroll Bond Rating Agency (“KBRA”). KBRA assigned investment grade ratings of BBB+ and BBB for the Corporation’s senior unsecured debt and subordinated debt, respectively, and a deposit and senior unsecured debt rating of A- and subordinated debt of BBB+ for the Bank. The Corporation’s and Bank’s ratings were reaffirmed in May 2024 by KBRA. For additional information on the Company’s subordinated debentures, see “ Note 13 — Subordinated Debentures ” to the audited consolidated financial statements in the Company’s 2023 Form 10-K. For regulatory capital purposes, subordinated notes qualify as Tier 2 capital, subject to limitations. Per applicable Federal Reserve rules and regulations, the amount of the subordinated notes qualifying as Tier 2 regulatory capital is phased out by 20% of the original amount of the subordinated notes in each of the five years beginning on the fifth anniversary preceding the maturity date of the subordinated notes. The regulatory total capital ratios of the Company and the Bank continued to exceed regulatory minimums, inclusive of the fully phased-in capital conservation buffer.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The Company’s restricted stock awards contain non-forfeitable rights to dividends and therefore are considered participating securities. The Company calculates basic and diluted earnings per common share using the two-class method. Under the two-class method, distributed and undistributed earnings allocable to participating securities are deducted from net income to determine net income allocable to common shareholders, which is then used in the numerator of both basic and diluted earnings per share calculations. Basic earnings per common share is computed by dividing net income allocable to common shareholders by the weighted average number of common shares outstanding for the reporting period, excluding outstanding participating securities. Diluted earnings per common share is computed by dividing net income allocable to common shareholders by the weighted average number of common shares outstanding over the reporting period, adjusted to include the effect of potentially dilutive common shares, but excludes awards considered participating securities. The computation of diluted earnings per common share excludes the impact of the assumed exercise or issuance of securities that would have an anti-dilutive effect. The following tables set forth the Corporation’s earnings per share calculations for the periods indicated: Three Months Ended (Dollars in thousands, except per share data) September 30, 2024 September 30, 2023 Basic Net income $ 35,979 $ 46,030 Less: dividends and undistributed earnings allocated to participating securities (667) (823) Net income allocated to common stockholders $ 35,312 $ 45,207 Weighted average common shares outstanding 94,650,096 94,189,844 Basic earnings per common share $ 0.37 $ 0.48 Diluted Net income allocated to common stockholders $ 35,312 $ 45,207 Weighted average common shares outstanding 94,650,096 94,189,844 Dilutive effect of share-based compensation 125,831 93,164 Weighted average diluted common shares 94,775,927 94,283,008 Diluted earnings per common share $ 0.37 $ 0.48 Nine Months Ended (Dollars in thousands, except per share data) September 30, 2024 September 30, 2023 Basic Net income $ 124,909 $ 166,228 Less: dividends and undistributed earnings allocated to participating securities (2,241) (2,674) Net income allocated to common stockholders $ 122,668 $ 163,554 Weighted average common shares outstanding 94,543,243 94,072,463 Basic earnings per common share $ 1.30 $ 1.74 Diluted Net income allocated to common stockholders $ 122,668 $ 163,554 Weighted average common shares outstanding 94,543,243 94,072,463 Dilutive effect of share-based compensation 109,340 142,383 Weighted average diluted common shares 94,652,583 94,214,846 Diluted earnings per common share $ 1.30 $ 1.74

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The fair value of an asset or liability is the exchange price that would be received to sell that asset or paid to transfer that liability (exit price) in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. In estimating fair value, the Company utilizes valuation techniques that are consistent with the market approach, the income approach, and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC Topic 825 - Financial Instruments , requires disclosure of the fair value of financial assets and financial liabilities, including both those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis and a non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value are discussed below. In accordance with ASC Topic 820 - Fair Value Measurement , the Company groups its financial assets and financial liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described as follows: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, prepayment speeds, volatilities, etc.), or model-based valuation techniques where all significant assumptions are observable, either directly or indirectly, in the market. Level 3 - Valuation is generated from model-based techniques where one or more significant inputs are not observable, either directly or indirectly, in the market. These unobservable assumptions reflect the Company’s own estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques may include use of matrix pricing, discounted cash flow models, and similar techniques. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature, and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the fair values presented. Management uses its best judgment in estimating the fair value of the Company’s financial instruments; however, there are inherent limitations in any estimation technique. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. The Company’s valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Management maximizes the use of observable inputs and attempts to minimize the use of unobservable inputs when determining fair value measurements. Estimated fair values are disclosed for financial instruments for which it is practicable to estimate fair value. These estimates are made at a specific point in time based on relevant market data and information about the financial instruments. These estimates do not reflect any premium or discount that could result from offering the Company’s entire holdings of a particular financial instrument for sale at one time, nor do they attempt to estimate the value of anticipated future business related to the instruments. In addition, the tax ramifications related to the realization of unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in any of these estimates. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following is a description of both the general and specific valuation methodologies used for certain instruments measured at fair value, as well as the general classification of these instruments pursuant to the fair value hierarchy. AFS Investment Securities – Investment securities are generally valued based upon quotes obtained from independent third-party pricing services, which use evaluated pricing applications and model processes. Observable market inputs, such as, benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, and reference data are considered as part of the evaluation. The inputs are related directly to the security being evaluated, or indirectly to a similarly situated security. Market assumptions and market data are utilized in the valuation models. The Company reviews the market prices provided by the third-party pricing service for reasonableness based on the Company’s understanding of the marketplace and credit issues related to the securities. The Company has not made any adjustments to the market quotes provided by them and, accordingly, the Company categorized these securities within Level 2 of the fair value hierarchy. Equity Securities With Readily Determinable Fair Values – The Company’s equity securities with readily determinable fair values consist of investments in public companies and qualify for CRA purposes. The fair value is based on the closing price on nationally recognized securities exchanges at the end of each period and classified as Level 1 of the fair value hierarchy. Interest Rate Swaps – The Company originates a variable rate loan and enters into a variable-to-fixed interest rate swap with the customer. The Company also enters into an offsetting swap with a correspondent bank. These back-to-back swap agreements are intended to offset each other and allow the Company to originate a variable rate loan, while providing a contract for fixed interest payments for the customer. The Company also enters into interest rate swap contracts with institutional counterparties to hedge against certain fixed-rate loans. The net cash flow for the Company is equal to the interest income received from a variable rate loan originated with the customer. The fair value of these derivatives is based on a market standard discounted cash flow approach. The Company incorporates credit value adjustments on derivatives to properly reflect the respective counterparty’s nonperformance risk in the fair value measurements of its derivatives. The Company has determined that the observable nature of the majority of inputs used in deriving the fair value of these derivative contracts fall within Level 2 of the fair value hierarchy, and the credit valuation adjustments are not significant to the overall valuation of its derivative financial instruments. As a result, the valuation of interest rate swaps is classified as Level 2 of the fair value hierarchy. Equity Warrant Assets – The Company acquired equity warrant assets as a result of the acquisition of Opus. The warrants provide the Bank the right to purchase a specific number of equity shares of the underlying company’s equity at a certain price before expiration and contain net settlement terms qualifying as derivatives under ASC Topic 815 - Derivatives and Hedging . The fair value of equity warrant assets is determined using a Black-Scholes option pricing model and are classified as Level 3 within the fair value hierarchy due to the extent of unobservable inputs. The key assumptions used in determining the fair value include the exercise price of the warrants, valuation of the underlying entity's outstanding stock, expected term, risk-free interest rate, marketability discount for private company warrants, and price volatility. During 2023, the equity warrant assets were either settled or written off as the warrants were determined to not be exercisable until the underlying company’s fair market value is greater than the value established in the warrant agreement. Foreign Exchange Contracts – The Company enters into foreign exchange contracts to accommodate the business needs of its customers. The Company also enters into offsetting contracts with institutional counterparties to mitigate the Company’s foreign exchange exposure with its customers, or enters into bilateral collateral and master netting agreements with certain customer counterparties to manage its credit exposure. The Company measures the fair value of foreign exchange contracts based on quoted prices for identical instruments in active markets, a Level 1 measurement. The following fair value hierarchy table presents information about the Company’s financial assets and liabilities measured at fair value on a recurring basis at the dates indicated: September 30, 2024 Fair Value Measurement Using Total Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets AFS investment securities: U.S. Treasury $ — $ 771,351 $ — $ 771,351 Agency — 1,165 — 1,165 Corporate — 405,408 — 405,408 Collateralized mortgage obligations — 138,622 — 138,622 Total AFS investment securities $ — $ 1,316,546 $ — $ 1,316,546 Equity securities $ 737 $ — $ — $ 737 Derivative assets: Foreign exchange contracts $ 3 $ — $ — $ 3 Interest rate swaps (1) — 4,199 — 4,199 Total derivative assets $ 3 $ 4,199 $ — $ 4,202 Financial liabilities Derivative liabilities: Foreign exchange $ 2 $ — $ — $ 2 Interest rate swaps — 8,380 — 8,380 Total derivative liabilities $ 2 $ 8,380 $ — $ 8,382 ______________________________ (1) Represents amounts after the application of variation margin payments as settlements with central counterparties, where applicable. See Note 11 – Derivative Instruments for additional information. December 31, 2023 Fair Value Measurement Using Total Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets AFS investment securities: U.S. Treasury $ — $ 539,256 $ — $ 539,256 Agency — 1,868 — 1,868 Corporate — 446,343 — 446,343 Collateralized mortgage obligations — 152,604 — 152,604 Total AFS investment securities $ — $ 1,140,071 $ — $ 1,140,071 Equity securities $ 759 $ — $ — $ 759 Derivative assets: Foreign exchange contracts $ 1 $ — $ — $ 1 Interest rate swaps (1) — 5,643 — 5,643 Total derivative assets $ 1 $ 5,643 $ — $ 5,644 Financial liabilities Derivative liabilities: Foreign exchange $ 10 $ — $ — $ 10 Interest rate swaps — 10,705 — 10,705 Total derivative liabilities $ 10 $ 10,705 $ — $ 10,715 ______________________________ (1) Represents amounts after the application of variation margin payments as settlements with central counterparties, where applicable. See Note 11 – Derivative Instruments for additional information. The following table is a reconciliation of the fair value of the equity warrants that are classified as Level 3 and measured on a recurring basis as of: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Beginning balance $ — $ 407 $ — $ 1,894 Change in fair value (1) — (16) — (41) Net exercise — — — (1,462) Ending balance $ — $ 391 $ — $ 391 ______________________________ (1) The changes in fair value are included in other income on the consolidated statement of income. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Individually Evaluated Loans – A loan is individually evaluated for expected credit losses when it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement and it does not share similar risk characteristics with other loans. Individually evaluated loans are measured at fair value when they are deemed collateral dependent. Fair value on such loans is measured based on the underlying collateral. Collateral generally consists of accounts receivable, inventory, fixed assets, real estate properties, and cash. The Company measures impairment on all individually evaluated loans for which it has reduced the principal balance to the value of the underlying collateral less the anticipated selling costs. Other Real Estate Owned – OREO is initially recorded at the fair value less estimated costs to sell at the date of transfer. This amount becomes the property’s new basis. Any fair value adjustments based on the property’s fair value less estimated costs to sell at the date of acquisition are charged to the allowance for credit losses. The fair value of individually evaluated collateral dependent loans and OREO were determined using Level 3 assumptions, and represents individually evaluated loan for which a specific reserve has been established or on which a write down has been taken. For real estate loans, generally, the Company obtains third party appraisals (or property valuations) and/or collateral audits in conjunction with internal analysis based on historical experience on its individually evaluated loans to determine fair value. In determining the net realizable value of the underlying collateral for individually evaluated loans and OREO, the Company then discounts the valuation to cover both market price fluctuations and selling costs, typically ranging from 7% to 10% of the collateral value, that the Company expects would be incurred in the event of foreclosure. In addition to the discounts taken, the Company’s calculation of net realizable value considered any other senior liens in place on the underlying collateral. For non-real estate loans, fair value of the loan’s collateral may be determined using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions, and management’s expertise and knowledge of the client and client’s business. At September 30, 2024, the Company’s individually evaluated collateral dependent loans were evaluated based on the fair value of their underlying collateral based upon the most recent appraisals available to management. The Company completed partial charge-offs on certain individually evaluated loans based on recent real estate or property appraisals and recorded the related reserves where applicable during the nine months ended September 30, 2024. The following table presents our assets measured at fair value on a nonrecurring basis at the dates indicated. (Dollars in thousands) Fair Value Measurement Using Total September 30, 2024 Level 1 Level 2 Level 3 Financial assets Collateral dependent loans $ — $ — $ 557 $ 557 Total assets $ — $ — $ 557 $ 557 December 31, 2023 Financial assets Collateral dependent loans $ — $ — $ 1,569 $ 1,569 Other real estate owned — — 248 248 Total assets $ — $ — $ 1,817 $ 1,817 The following table presents quantitative information about Level 3 fair value measurements for assets measured at fair value on a nonrecurring basis at the dates indicated. Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average September 30, 2024 Investor loans secured by real estate SBA secured by real estate (1) $ 557 Fair value of collateral Cost to sell 10.00% 10.00% 10.00% Total individually evaluated loans 557 Total assets $ 557 December 31, 2023 Investor loans secured by real estate SBA secured by real estate (1) $ 419 Fair value of collateral Cost to sell 10.00% 10.00% 10.00% Commercial loans Commercial and industrial 1,150 Fair value of collateral Cost to sell 7.00% 7.00% 7.00% Total individually evaluated loans 1,569 Other real estate owned 248 Fair value of property Cost to sell 10.00% 10.00% 10.00% Total assets $ 1,817 ______________________________ (1) SBA loans that are collateralized by hotel/motel real property. Fair Values of Financial Instruments The fair value estimates presented herein are based on pertinent information available to management as of the dates indicated, representing an exit price. (Dollars in thousands) Carrying Level 1 Level 2 Level 3 Estimated September 30, 2024 Assets Cash and cash equivalents $ 982,249 $ 982,249 $ — $ — $ 982,249 Interest-bearing time deposits with financial institutions 1,246 1,246 — — 1,246 HTM investment securities 1,713,575 — 1,482,042 — 1,482,042 AFS investment securities 1,316,546 — 1,316,546 — 1,316,546 Equity securities 737 737 — — 737 Loans held for investment, net 12,035,097 — — 11,567,236 11,567,236 Derivative assets (1) 4,202 3 4,199 — 4,202 Accrued interest receivable 64,803 — 64,803 — 64,803 Liabilities Deposit accounts $ 14,480,927 $ — $ 14,498,492 $ — $ 14,498,492 Subordinated debentures 272,320 — 267,936 — 267,936 Derivative liabilities (1) 8,382 2 8,380 — 8,382 Accrued interest payable 13,404 — 13,404 — 13,404 December 31, 2023 Assets Cash and cash equivalents $ 936,473 $ 936,473 $ — $ — $ 936,473 Interest-bearing time deposits with financial institutions 995 995 — — 995 HTM investment securities 1,729,541 — 1,485,506 — 1,485,506 AFS investment securities 1,140,071 — 1,140,071 — 1,140,071 Equity securities 759 759 — — 759 Loans held for investment, net 13,289,020 — — 12,562,323 12,562,323 Derivative assets (1) 5,644 1 5,643 — 5,644 Accrued interest receivable 68,516 — 68,516 — 68,516 Liabilities Deposit accounts $ 14,995,626 $ — $ 15,003,769 $ — $ 15,003,769 FHLB advances 600,000 — 592,480 — 592,480 Subordinated debentures 331,842 — 320,687 — 320,687 Derivative liabilities (1) 10,715 10 10,705 — 10,715 Accrued interest payable 18,671 — 18,671 — 18,671 ______________________________ (1) Represents amounts after the application of variation margin payments as settlements with central counterparties, where applicable. See Note 11 – Derivative Instruments for additional information.

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments The Company uses derivative instruments to manage its exposure to market risks, including interest rate risk, and to assist customers with their risk management objectives. The Company designates certain derivatives as hedging instruments in a qualifying hedge accounting relationship, while other derivatives serve as economic hedges that do not qualify for hedge accounting. Derivatives Designated as Hedging Instruments Fair Value Hedges – The Company is exposed to changes in the fair value of fixed-rate assets due to changes in benchmark interest rates. The Company entered into pay-fixed and receive-floating interest rate swaps associated with certain fixed rate loans, primarily multifamily and commercial real estate loans, to manage its exposure to changes in fair value on these instruments attributable to changes in the designated SOFR benchmark interest rate. These interest rate swaps are designated as fair value hedges using the portfolio layer method. The Company receives variable-rate interest payments in exchange for making fixed-rate payments over the lives of the contracts without exchanging the notional amounts. The fair value hedges are recorded as components of other assets and other liabilities in the Company’s consolidated statements of financial condition. The gain or loss on these derivatives, as well as the offsetting loss or gain on the hedged items attributable to the hedged risk, are recognized consistent with the classification of the hedged item in interest income in the Company’s consolidated statements of income. During the three months ended September 30, 2024, as part of its interest rate risk management, the Company voluntarily discontinued portfolio layer method fair value hedges with an aggregate notional amount of $450.0 million associated with closed pools of fixed rate loans. In addition, a portfolio layer method fair value hedge with a notional amount of $100.0 million matured during the three months ended September 30, 2024. When a portfolio layer method fair value hedge is discontinued, the hedged item is no longer adjusted for changes in the fair value of the hedged risk, also referred to as the basis adjustment. The basis adjustment, as of the date the fair value hedge is discontinued, is allocated on a proportionate basis to the remaining loans that previously comprised the closed pool. The basis adjustment is subsequently amortized or accreted into interest income using the interest method over the remaining lives of the individual loans. At September 30, 2024 and December 31, 2023, interest rate swaps with an aggregate notional amount of $800.0 million and $1.35 billion respectively, were designated as fair value hedges. The following amounts were recorded on the consolidated statement of financial condition related to cumulative basis adjustment for fair value hedges as of the dates indicated: Line Item in the Statement of Financial Position in Which the Hedged Item is Included Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets (Dollars in thousands) September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Loans held for investment (1) $ 783,847 $ 1,320,449 $ (15,499) (2) $ (29,551) Total $ 783,847 $ 1,320,449 $ (15,499) $ (29,551) ______________________________ (1) These amounts were included in the amortized cost basis of closed portfolios of loans held for investment used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolios anticipated to be outstanding for the designated hedge period. At September 30, 2024 and December 31, 2023, the amortized cost basis of the closed portfolios used in these hedging relationships was $2.04 billion and $3.25 billion, respectively, the cumulative basis adjustments associated with these hedging relationships was $(15.5) million and $(29.6) million, respectively, and the amounts of the designated hedged items were $800.0 million and $1.35 billion, respectively. (2) At September 30, 2024, the balance included $654,000 hedging adjustment on discontinued hedging relationships. Derivatives Not Designated as Hedging Instruments Interest Rate Swap Contracts – From time to time, the Company enters into interest rate swap agreements with certain borrowers to assist them in mitigating their interest rate risk exposure associated with the loans they have with the Company. At the same time, the Company enters into identical offsetting interest rate swap agreements with another financial institution to mitigate the Company’s interest rate risk exposure associated with the swap agreements it enters into with its borrowers. The Company has over-the-counter derivative instruments and centrally-cleared derivative instruments with matched terms. The fair values of these agreements are determined through a third-party valuation model used by the Company’s swap advisory firm, which uses observable market data such as interest rates, prices of Eurodollar futures contracts, and market swap rates. The fair values of these swaps are recorded as components of other assets and other liabilities in the Company’s consolidated statement of financial condition. Changes in the fair value of these swaps, which occur due to changes in interest rates, are recorded in the Company’s statement of income as a component of noninterest income. Upon the cessation of LIBOR on June 30, 2023, our LIBOR-indexed interest rate swap contracts transitioned to SOFR as successor rate for both valuations and settlements. Over-the-counter contracts are tailored to meet the needs of the counterparties involved and, therefore, generally contain a greater degree of credit risk and liquidity risk than centrally-cleared contracts, which have standardized terms. Although changes in the fair value of swap agreements between the Company and borrowers and the Company and other financial institutions offset each other, changes in the credit risk of these counterparties may result in a difference in the fair value of the swap agreements. Offsetting over-the-counter swap agreements the Company has with other financial institutions are collateralized with cash, and swap agreements with borrowers are secured by the collateral arrangements for the underlying loans these borrowers have with the Company. All interest rate swap agreements entered into by the Company are free-standing derivatives and are not designated as hedging instruments. Foreign Exchange Contracts – The Company offers foreign exchange spot and forward contracts as accommodations to its customers to purchase and/or sell foreign currencies at a contractual price. In conjunction with these products the Company also enters into offsetting contracts with institutional counterparties to mitigate the Company’s foreign exchange exposure with its customers, or enters into bilateral collateral and master netting agreements with certain customer counterparties to manage its credit exposure. These contracts allow the Company to offer its customers foreign exchange products while minimizing its exposure to foreign exchange rate fluctuations. These foreign exchange contracts are not designated as hedging instruments and are recorded at fair value in other assets and other liabilities in the Company’s consolidated statements of financial condition. Changes in the fair value of these contracts are recorded in the Company’s consolidated statements of income as a component of noninterest income. Equity Warrant Assets – The Company acquired equity warrant assets as a result of the acquisition of Opus. The warrants provide the Bank the right to purchase a specific number of equity shares of the underlying company’s equity at a certain price before expiration and contain net settlement terms qualifying as derivatives under ASC Topic 815. Changes in the fair value of the warrants are recognized as a component of noninterest income with a corresponding offset within other assets. The total fair value of the warrants held in private companies was zero in other assets as of September 30, 2024 and December 31, 2023. During 2023, the equity warrant assets were either settled or written off as the warrants were determined to not be exercisable until the underlying company’s fair market value is greater than the value established in the warrant agreement. The following tables summarize the Company's derivative instruments included in “other assets” and “other liabilities” in the consolidated statements of financial condition as of the dates indicated: September 30, 2024 Derivative Assets Derivative Liabilities (Dollars in thousands) Notional Fair Value Notional Fair Value Derivative instruments designated as hedging instruments: Fair value hedge - interest rate swap contracts $ 500,000 $ 17,239 $ 300,000 $ 67 Total derivative designated as hedging instruments 500,000 17,239 300,000 67 Derivative instruments not designated as hedging instruments: Foreign exchange contracts 81 3 287 2 Interest rate swaps contracts 95,268 8,215 95,268 8,225 Total derivative not designated as hedging instruments 95,349 8,218 95,555 8,227 Total derivatives $ 595,349 25,457 $ 395,555 8,294 Netting adjustments - cleared positions (1) 21,255 (88) Total derivatives in the Statement of Financial Condition $ 4,202 $ 8,382 December 31, 2023 Derivative Assets Derivative Liabilities (Dollars in thousands) Notional Fair Value Notional Fair Value Derivative instruments designated as hedging instruments: Fair value hedge - interest rate swap contracts $ 600,000 $ 34,541 $ 750,000 $ 3,184 Total derivative designated as hedging instruments 600,000 34,541 750,000 3,184 Derivative instruments not designated as hedging instruments: Foreign exchange contracts 19 1 410 10 Interest rate swaps contracts 103,954 10,397 103,954 10,409 Total derivative not designated as hedging instruments 103,973 10,398 104,364 10,419 Total derivatives $ 703,973 $ 44,939 $ 854,364 $ 13,603 Netting adjustments - cleared positions (1) 39,295 2,888 Total derivatives in the Statement of Financial Condition $ 5,644 $ 10,715 ______________________________ (1) Netting adjustments represents the variation margin payments that are considered legal settlements of derivative exposure and applied to net the fair value of the respective derivative contracts in accordance with the applicable accounting guidance on the settle-to-market rule for cleared derivatives. The following table presents the effect of fair value hedge accounting on the consolidated statements of income: Three Months Ended Nine Months Ended (Dollars in thousands) Location of Gain (Loss) Recognized in Income on Derivative Instruments September 30, 2024 September 30, 2023 September 30, 2024 September 30, 2023 Gain (loss) on fair value hedging relationships: Hedged items Interest Income $ 12,048 $ 4,300 $ 13,398 $ 13,096 Derivatives designated as hedging instruments Interest Income (5,123) 6,268 8,068 15,578 The following table summarizes the effect of the derivatives not designated as hedging instruments in the consolidated statements of income. (Dollars in thousands) Three Months Ended Nine Months Ended Derivatives Not Designated as Hedging Instruments: Location of Gain (Loss) Recognized in Income on Derivative Instruments September 30, 2024 September 30, 2023 September 30, 2024 September 30, 2023 Foreign exchange contracts Other income $ 181 $ 205 $ 533 $ 688 Interest rate products Other income (1) (9) 2 (9) Equity warrants Other income — (16) — (802) Total $ 180 $ 180 $ 535 $ (123)

Balance Sheet Offsetting

Balance Sheet Offsetting	9 Months Ended
	Sep. 30, 2024
Offsetting [Abstract]
Balance Sheet Offsetting	Balance Sheet Offsetting Derivative financial instruments may be eligible for offset in the consolidated statements of financial condition, such as those subject to enforceable master netting arrangements or a similar agreement. Under these agreements, the Company has the right to net settle multiple contracts with the same counterparty. The Company offers an interest rate swap product to qualified customers, which are then paired with derivative contracts the Company enters into with a counterparty bank. While derivative contracts entered into with counterparty banks may be subject to enforceable master netting agreements, derivative contracts with customers may not be subject to enforceable master netting arrangements. With regard to derivative contracts not centrally cleared through a clearinghouse, regulations require collateral to be posted by the party with a net liability position. Parties to a centrally cleared over-the-counter derivative exchange daily payments that reflect the daily change in the value of the derivative. These payments are commonly referred to as variation margin and are treated as settlements of derivative exposure rather than as collateral. The gross amounts of derivative assets and liabilities for derivative contracts cleared through certain central clearing parties are reported at the fair value of the respective derivative contracts net of the variation margin payments, where applicable. Financial instruments that are eligible for offset in the consolidated statements of financial condition as of the periods indicated are presented below: Gross Amounts Recognized (1) Gross Amounts Offset in the Consolidated Statements of Financial Condition Net Amounts Presented in the Consolidated Statements of Financial Condition Gross Amounts Not Offset in the Consolidated Net Amount (Dollars in thousands) Financial Instruments (2) Cash Collateral (3) September 30, 2024 Derivative assets: Interest rate swaps $ 4,199 $ — $ 4,199 $ — $ (3,530) $ 669 Total $ 4,199 $ — $ 4,199 $ — $ (3,530) $ 669 Derivative liabilities: Interest rate swaps $ 8,380 $ — $ 8,380 $ — $ — $ 8,380 Total $ 8,380 $ — $ 8,380 $ — $ — $ 8,380 December 31, 2023 Derivative assets: Interest rate swaps $ 5,643 $ — $ 5,643 $ — $ (4,610) $ 1,033 Total $ 5,643 $ — $ 5,643 $ — $ (4,610) $ 1,033 Derivative liabilities: Interest rate swaps $ 10,705 $ — $ 10,705 $ — $ — $ 10,705 Total $ 10,705 $ — $ 10,705 $ — $ — $ 10,705 ______________________________ (1) Represents amounts after the application of variation margin payments as settlements with central counterparties, where applicable. (2) Represents the fair value of securities pledged with counterparty bank. (3) Represents cash collateral received from or pledged with counterparty bank. Amounts are limited to the derivative asset or liability balance and, accordingly, do not include excess collateral, if any, received or pledged.

Variable Interest Entities

Variable Interest Entities	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	Variable Interest Entities The Company is involved with VIEs through its loan securitization activities and affordable housing investments that qualify for the low-income housing tax credit (“LIHTC”). The Company has determined that its interests in these entities meet the definition of variable interests. As of September 30, 2024 and December 31, 2023, the Company determined it was not the primary beneficiary of the VIEs and did not consolidate its interests in VIEs. The following table provides a summary of the carrying amount of assets and liabilities in the Company’s consolidated statements of financial condition and maximum exposure to loss as of September 30, 2024 and December 31, 2023 that relate to variable interests in non-consolidated VIEs. September 30, 2024 December 31, 2023 (Dollars in thousands) Maximum Loss Assets Liabilities Maximum Loss Assets Liabilities Multifamily loan securitization: Investment securities (1) $ 42,266 $ 42,266 $ — $ 48,204 $ 48,204 $ — Reimbursement obligation (2) 42,305 — 345 47,994 — 345 Affordable housing partnership: Other investments (3) 49,944 83,339 — 57,016 89,085 — Unfunded equity commitments (2) — — 33,395 — — 32,070 Total $ 134,515 $ 125,605 $ 33,740 $ 153,214 $ 137,289 $ 32,415 ______________________________ (1) Included in investment securities AFS on the consolidated statement of financial condition. (2) Included in accrued expenses and other liabilities on the consolidated statement of financial condition. (3) Included in other assets on the consolidated statement of financial condition. Multifamily Loan Securitization With respect to the securitization transaction with Freddie Mac discussed in Note 5 – Loans Held for Investment , the Company’s variable interests reside with the underlying Freddie Mac-issued guaranteed, structured pass-through certificates that were held as AFS investment securities at fair value as of September 30, 2024. Additionally, the Company has variable interests through a reimbursement agreement executed by Freddie Mac that obligates the Company to reimburse Freddie Mac for any defaulted contractual principal and interest payments identified after the ultimate resolution of the defaulted loans. Such reimbursement obligations are not to exceed 10% of the original principal amount of the loans comprising the securitization pool. As part of the securitization transaction, the Company released all servicing obligations and rights to Freddie Mac who was designated as the Master Servicer. In its capacity as Master Servicer, Freddie Mac can terminate the Company’s role as sub-servicer and direct such responsibilities accordingly. In evaluating our variable interests and continuing involvement in the VIE, we determined that we do not have the power to make significant decisions or direct the activities that most significantly impact the economic performance of the VIE’s assets and liabilities. As sub-servicer of the loans, the Company does not have the authority to make significant decisions that influence the value of the VIE’s net assets and, therefore, the Company is not the primary beneficiary of the VIE. As a result, we determined that the VIE associated with the multifamily securitization should not be included in the consolidated financial statements of the Company. We believe that our maximum exposure to loss as a result of our involvement with the VIE associated with the securitization is the carrying value of the investment securities issued by Freddie Mac and purchased by the Company. Additionally, our maximum exposure to loss under the reimbursement agreement executed with Freddie Mac is 10% of the original principal amount of the loans comprising the securitization pool, or $50.9 million. However, as the total outstanding principal amount of the underlying loans decreased below the aforementioned threshold, the maximum exposure declined to the total outstanding principal amount of the underlying loans of $42.3 million at September 30, 2024 and $48.0 million at December 31, 2023. Based upon our analysis of quantitative and qualitative data over the underlying loans included in the securitization pool, as of September 30, 2024 and December 31, 2023, our reserve for estimated losses with respect to the reimbursement obligation was $345,000. Investments in Qualified Affordable Housing Partnerships The Company has variable interests through its affordable housing partnership investments. These investments are fundamentally designed to provide a return through the generation of income tax credits and other income tax benefits. The Company has evaluated its involvement with the low-income housing projects and determined it does not have the ability to exercise significant influence over or participate in the decision-making activities related to the management of the projects, and therefore, is not the primary beneficiary, and does not consolidate these interests.

Tax Equity Investments

Tax Equity Investments	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Tax Equity Investments	Note 14 – Tax Equity Investments The Company makes investments in the equity of certain limited partnerships or limited liability companies that typically qualify for credit under the Community Reinvestment Act. Certain of these equity investments are associated with affordable housing projects that generate LIHTC and other income tax benefits for the Company. The Company typically accounts for tax equity investments using the proportional amortization method, if certain criteria are met. The election to account for tax equity investments using the proportional amortization method is done so on a tax credit program-by-tax credit program basis. Under the proportional amortization method, the Company amortizes the initial cost of the investment, which is inclusive of any commitments to make future equity contributions, in proportion to the income tax credits and other income tax benefits that are allocated to the Company over the period of the investment. The net benefits of these investments, which are comprised of income tax credits and operating loss income tax benefits, net of investment amortization, are recognized in the income statement as a component of income tax expense. At September 30, 2024 and December 31, 2023, the carrying value of these investments was $83.3 million and $88.8 million, respectively, and are included in other assets in the consolidated statements of financial position. As of September 30, 2024, the Company’s unfunded commitments associated with tax equity investments, which are comprised of investments in affordable housing partnerships, were estimated to be paid as follows: (Dollars in thousands) Amount Year Ending December 31, 2024 $ 3,885 2025 14,727 2026 11,027 2027 720 2028 469 Thereafter 2,567 Total unfunded commitments $ 33,395 The following table presents income tax credits and other income tax benefits, as well as amortization expense, associated with investments in qualified affordable housing partnerships where the proportional amortization method of accounting has been applied for the periods indicated. Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Tax credit and other tax benefits recognized (1) $ 4,309 $ 4,189 $ 12,743 $ 11,746 Amortization of investments (1) 3,546 3,360 $ 10,496 $ 9,464 ______________________________ (1) Amounts for income tax credits and other income tax benefits, as well as amortization of investments, are included in income tax expense in the consolidated statements of income, and net change in accrued interest receivable and other assets on the consolidated statements of cash flows, for the periods presented above.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Quarterly Cash Dividend

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net income	$ 35,979	$ 46,030	$ 124,909	$ 166,228

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Principles of Consolidation	The consolidated financial statements include the accounts of Pacific Premier Bancorp, Inc. (the “Corporation”) and its wholly owned subsidiaries, including Pacific Premier Bank (the “Bank”) (collectively, the “Company,” “we,” “our,” or “us”). All significant intercompany accounts and transactions have been eliminated in consolidation.
Basis of Financial Statement Presentation	In the opinion of management, the unaudited consolidated financial statements reflect all normal recurring adjustments and accruals that are necessary for a fair presentation of the statement of financial position and the results of operations for the interim periods presented. The results of operations for the nine months ended September 30, 2024 are not necessarily indicative of the results that may be expected for any other interim period or the full year ending December 31, 2024. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (the “2023 Form 10-K”).
Variable Interest Entities	The Company consolidates voting entities in which the Company has control through voting interests or entities through which the Company has a controlling financial interest in a variable interest entity (“VIE”). The Company evaluates its interests in these entities to determine whether they meet the definition of a VIE and whether the Company is required to consolidate these entities. A VIE is consolidated by its primary beneficiary, which is the party that has both (i) the power to direct the activities that most significantly impact the economic performance of the VIE and (ii) a variable interest that could potentially be significant to the VIE. To determine whether or not a variable interest the Company holds could potentially be significant to the VIE, the Company considers both qualitative and quantitative factors regarding the nature, size, and form of the Company's involvement with the VIE. The Company is involved with VIEs through its loan securitization activities and affordable housing investments that qualify for the low-income housing tax credit (“LIHTC”). The Company has determined that its interests in these entities meet the definition of variable interests.
Recently Issued Accounting Pronouncements	Accounting Standards Adopted in 2024 In March 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU” or “Update”) 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 . The amendments in this Update allow the option for an entity to apply the proportional amortization method of accounting to other equity investments that are made for the primary purpose of receiving income tax credits or other income tax benefits, if certain conditions are met. Prior to this Update, the application of the proportional amortization method of accounting was limited to investments in low income housing tax credit structures. The proportional amortization method of accounting results in the amortization of applicable investments, as well as the related income tax credits or other income tax benefits received, being presented on a single line in the statements of income, that is income tax expense. Under this Update, an entity has the option to apply the proportional amortization method of accounting to applicable investments on a tax-credit-program-by-tax-credit-program basis. In addition, the amendments in this Update require that all tax equity investments accounted for using the proportional amortization method use the delayed equity contribution guidance in paragraph 323-740-25-3, requiring a liability be recognized for delayed equity contributions that are unconditional and legally binding or for equity contributions that are contingent upon a future event when that contingent event becomes probable. Under this Update, low income housing tax credit investments for which the proportional amortization method is not applied can no longer be accounted for using the delayed equity contribution guidance. Further, this Update specifies that tax equity investments accounted for using the equity method must apply the impairment guidance in Subtopic 323-10 - Investments - Equity Method and Joint Ventures - Overall. This Update also clarifies that for low income housing tax credit investments not accounted for under the proportional amortization method or the equity method, an entity shall account for them under Topic 321 - Investments - Equity Securities. The amendments in this Update also require additional disclosures in interim and annual periods concerning investments for which the proportional amortization method is applied, including (i) the nature of tax equity investments, and (ii) the effect of tax equity investments and related income tax credits and other income tax benefits on the financial position and results of operations. The provisions of this Update became effective for the Company for interim and annual periods beginning January 1, 2024. Refer to Note 14 – Tax Equity Investments for additional information. The adoption of this Update did not have a material impact on the Company’s consolidated financial statements. Recent Accounting Guidance Not Yet Effective In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) - Improvements to Income Tax Disclosures . The FASB issued this Update to enhance the transparency and decision usefulness of income tax disclosures. The amendments in this Update address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid. The amendments in this Update are effective for annual periods beginning after December 15, 2024. Early adoption is permitted. The Company is currently evaluating the impact of this Update on its consolidated financial statements. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280) - Improvements to Reportable Segments . The amendments in this Update improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis. Amendments in this Update include: a requirement that a public entity provide all annual disclosures about a reportable segment’s profit or loss in its interim period disclosures, disclosure of significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”), disclosure of amounts for other segment items by reportable segment and a description of its composition, clarification that if the CODM uses more than one measure of a segment’s profit or loss in assessing segment performance and deciding how to allocate resources, a public entity may report one or more of those additional measures of segment profit or loss, requires that a public entity disclose the title and position of the CODM, and an explanation of how the CODM uses the reported measure(s) of segment profit or loss, and requires that a public entity that has a single reportable segment provide all the disclosures required by this Update as well as all existing disclosures required in Topic 280. The amendments in this Update are effective for the Company beginning with its 2024 annual financial statement disclosures for the year ended December 31, 2024, and for all interim and annual periods thereafter. Early adoption is permitted. The Company is currently evaluating the impact of this Update.
Use of Estimates	Use of Estimates
Allowance for Credit Losses on Investment Securities and Loans	The Company maintains an ACL for loans and unfunded loan commitments in accordance with ASC 326 - Financial Instruments - Credit Losses . ASC 326 requires the Company to initially recognize estimates for lifetime credit losses on loans and unfunded loan commitments at the time of origination or acquisition. The recognition of credit losses represents the Company’s best estimate of lifetime expected credit losses, given the facts and circumstances associated with a particular loan or group of loans with similar risk characteristics. Determining the ACL involves the use of significant management judgement and estimates, which are subject to change based on management’s ongoing assessment of the credit quality of the loan portfolio and changes in economic forecasts used in the Company’s ACL model. The Company uses a discounted cash flow model when determining estimates for the ACL for commercial real estate loans and commercial loans, which comprise the majority of the loan portfolio, and uses a historical loss rate model for retail loans. The Company also utilizes proxy loan data in its ACL model where the Company’s own historical data is not sufficiently available. The discounted cash flow model is applied on an instrument-by-instrument basis, and for loans with similar risk characteristics, to derive estimates for the lifetime ACL for each loan. The discounted cash flow methodology relies on several significant components essential to the development of estimates for future cash flows on loans and unfunded loan commitments. These components consist of: (i) the estimated probability of default (“PD”), (ii) the estimated loss given default (“LGD”), which represents the estimated severity of the loss when a loan is in default, (iii) estimates for prepayment activity on loans, and (iv) the estimated exposure to the Company at default (“EAD”). The PD and LGD are heavily influenced by changes in economic forecasts and key variables employed in the model as well as our portfolio performance and composition over a reasonable and supportable period. The Company’s ACL methodology for unfunded loan commitments also includes assumptions concerning the probability an unfunded commitment will be drawn upon by the borrower. These assumptions are based on the Company’s historical experience. The Company’s discounted cash flow ACL model for CRE and commercial loans uses internally derived estimates for prepayments in determining the amount and timing of future contractual cash flows expected to be collected. The estimate of future cash flows also incorporates estimates for contractual amounts the Company believes may not be collected, which are based on assumptions for PD, LGD, and EAD. The EAD is determined by the contractual payment schedule and expected payment profile of the loan, incorporating estimates for expected prepayments and future draws on revolving credit facilities. The Company discounts cash flows using the effective interest rate on the loan. The effective interest rate represents the contractual rate on the loan; adjusted for any purchase premiums, or discounts, and deferred fees and costs associated with an originated loan. The Company has made an accounting policy election to adjust the effective interest rate to take into consideration the effects of estimated prepayments. The ACL for loans is determined by measuring the amount by which a loan’s amortized cost exceeds its discounted cash flows expected to be collected. The ACL for credit facilities is determined by discounting estimates for cash flows not expected to be collected. Probability of Default The PD for investor loans secured by real estate is based largely on a model provided by a third party, using proxy loan information. The PDs generated by this model are reflective of current and expected economic conditions in the commercial real estate market, and how they are expected to impact loan level and property level attributes, and ultimately the likelihood of a default event occurring. This model incorporates assumptions for PD at a loan’s maturity. Significant loan and property level attributes include: loan-to-value (“LTV”) ratios, debt service coverage ratios, loan size, loan vintage, and property types. The PD for business loans secured by real estate and commercial loans is based on an internally developed PD rating scale that assigns PDs based on the Company’s internal credit risk grades for loans. This internally developed PD rating scale is based on a combination of the Company’s own historical data and observed historical data from the Company’s peers, which consist of banks that management believes align with our business profile. As credit risk grades change for these loans, the PD assigned to them also changes. As with investor loans secured by real estate, the PD for business loans secured by real estate and commercial loans is also impacted by current and expected economic conditions, including U.S. GDP growth and U.S. unemployment rate forecasts. The Company considers loans to be in default when they are 90 days or more past due or placed on nonaccrual status. Loss Given Default LGDs for commercial real estate loans are derived from a third party, using proxy loan information, and are based on loan and property level characteristics for loans in the Company’s loan portfolio, such as: LTV ratios, estimated time to resolution, property size, and current and estimated future market price changes for underlying collateral. LGDs are highly dependent upon LTV ratios, and incorporate estimates for the expenses associated with managing the loans through to resolution. LGDs also incorporate an estimate for the loss severity associated with loans where the borrower fails to meet their debt obligation at maturity, such as through a balloon payment or the refinancing of the loan through another lender. External factors that have an impact on LGDs include: changes in the index for CRE pricing, GDP growth rate, unemployment rates, and the Consumer Price Index. LGDs are applied to each loan in the commercial real estate portfolio, and in conjunction with the PD, produce estimates for net cash flows not expected to be collected over the estimated term of the loan. LGDs for commercial loans are also derived from a third party that has a considerable database of credit related information specific to the financial services industry and the type of loans within this segment, and is used to generate annual default information for commercial loans. These proxy LGDs are dependent upon data inputs such as credit quality, borrower industry, region, borrower size, and debt seniority, as well as external factors, including GDP growth rate and unemployment rates. LGDs are then applied to each loan in the commercial segment, and in conjunction with the PD, produce estimates for net cash flows not expected to be collected over the estimated term of the loan. Historical Loss Rates for Retail Loans The historical loss rate model for retail loans is derived from a third party that has a considerable database of credit related information for retail loans. Key loan level attributes and economic drivers in determining the loss rate for retail loans include FICO scores, vintage, as well as geography, unemployment rates, and changes in consumer real estate prices. Economic Forecasts In order to develop reasonable and supportable forecasts of future conditions, the Company estimates how those forecasts are expected to impact a borrower’s ability to satisfy their obligation to the Bank and the ultimate collectability of future cash flows over the life of a loan. The Company uses macroeconomic scenarios from an independent third party, which are based on past events, current conditions, and the likelihood of future events occurring. These scenarios are typically comprised of: a base-case scenario, an upside scenario, representing slightly better economic conditions than currently experienced and, a downside scenario, representing recessionary conditions. Management evaluates appropriateness of economic scenarios and may decide that a particular economic scenario or a combination of probability-weighted economic scenarios should be used in the Company’s ACL model. The economic scenarios chosen for the model, the extent to which more than one scenario is used, and the weights that are assigned to them, are based on the likelihood that the economy would perform better than each scenario, which is based in part on analysis performed by an independent third party. Economic scenarios chosen, as well as the assumptions within those scenarios, and whether to use a probability-weighted multiple scenario approach, can vary from one period to the next based on changes in current and expected economic conditions, and due to the occurrence of specific events. The Company’s ACL model at September 30, 2024 includes assumptions concerning the interest rate environment, general uncertainty concerning future economic conditions, and the potential for recessionary conditions. The Company currently forecasts PDs and LGDs based on economic scenarios over a two-year period, which we believe is a reasonable and supportable period. Beyond this point, PDs and LGDs revert to their long-term averages. The Company has reflected this reversion over a period of three years in each of its economic scenarios used to generate the overall probability-weighted forecast. Changes in economic forecasts impact the PD, LGD, and EAD for each loan, and therefore influence the amount of future cash flows the Company does not expect to collect for each loan. It is important to note that the Company’s ACL model relies on multiple economic and model variables, which are used in several economic scenarios. Although no one variable can fully demonstrate the sensitivity of the ACL calculation to changes in the economic variables used in the model, the Company has identified certain economic variables that have significant influence in the Company’s model for determining the ACL. These key economic variables include forecasted changes in the U.S. unemployment rate, U.S. real GDP growth, CRE prices, and interest rates. Qualitative Adjustments The Company recognizes that historical information used as the basis for determining future expected credit losses may not always, by itself, provide a sufficient basis for determining future expected credit losses. The Company, therefore, considers the need for qualitative adjustments to the ACL on a quarterly basis. Qualitative adjustments may be related to and include, but not be limited to, factors such as: (i) management’s assessment of economic forecasts used in the model and how those forecasts align with management’s overall evaluation of current and expected economic conditions, (ii) organization specific risks such as credit concentrations, collateral specific risks, regulatory risks, and external factors that may ultimately impact credit quality, (iii) potential model limitations such as limitations identified through back-testing, and other limitations associated with factors such as underwriting changes, acquisition of new portfolios, and changes in portfolio segmentation, and (iv) management’s overall assessment of the adequacy of the ACL, including an assessment of model data inputs used to determine the ACL. Qualitative adjustments primarily relate to certain segments of the loan portfolio deemed by management to be of potentially higher-risk profiles or other factors where management believes the quantitative component of the Company’s ACL model may not be fully reflective of levels deemed adequate in the judgement of management. Certain qualitative adjustments also relate to heightened uncertainty as to future macroeconomic conditions and the related impact on certain loan segments. Management reviews the need for an appropriate level of qualitative adjustments on a quarterly basis, and as such, the amount and allocation of qualitative adjustments may change in future periods.
Fair Value Measurement	The fair value of an asset or liability is the exchange price that would be received to sell that asset or paid to transfer that liability (exit price) in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. In estimating fair value, the Company utilizes valuation techniques that are consistent with the market approach, the income approach, and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC Topic 825 - Financial Instruments , requires disclosure of the fair value of financial assets and financial liabilities, including both those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis and a non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value are discussed below. In accordance with ASC Topic 820 - Fair Value Measurement , the Company groups its financial assets and financial liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described as follows: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, prepayment speeds, volatilities, etc.), or model-based valuation techniques where all significant assumptions are observable, either directly or indirectly, in the market. Level 3 - Valuation is generated from model-based techniques where one or more significant inputs are not observable, either directly or indirectly, in the market. These unobservable assumptions reflect the Company’s own estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques may include use of matrix pricing, discounted cash flow models, and similar techniques. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature, and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the fair values presented. Management uses its best judgment in estimating the fair value of the Company’s financial instruments; however, there are inherent limitations in any estimation technique. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. The Company’s valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Management maximizes the use of observable inputs and attempts to minimize the use of unobservable inputs when determining fair value measurements. Estimated fair values are disclosed for financial instruments for which it is practicable to estimate fair value. These estimates are made at a specific point in time based on relevant market data and information about the financial instruments. These estimates do not reflect any premium or discount that could result from offering the Company’s entire holdings of a particular financial instrument for sale at one time, nor do they attempt to estimate the value of anticipated future business related to the instruments. In addition, the tax ramifications related to the realization of unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in any of these estimates. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following is a description of both the general and specific valuation methodologies used for certain instruments measured at fair value, as well as the general classification of these instruments pursuant to the fair value hierarchy. AFS Investment Securities – Investment securities are generally valued based upon quotes obtained from independent third-party pricing services, which use evaluated pricing applications and model processes. Observable market inputs, such as, benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, and reference data are considered as part of the evaluation. The inputs are related directly to the security being evaluated, or indirectly to a similarly situated security. Market assumptions and market data are utilized in the valuation models. The Company reviews the market prices provided by the third-party pricing service for reasonableness based on the Company’s understanding of the marketplace and credit issues related to the securities. The Company has not made any adjustments to the market quotes provided by them and, accordingly, the Company categorized these securities within Level 2 of the fair value hierarchy. Equity Securities With Readily Determinable Fair Values – The Company’s equity securities with readily determinable fair values consist of investments in public companies and qualify for CRA purposes. The fair value is based on the closing price on nationally recognized securities exchanges at the end of each period and classified as Level 1 of the fair value hierarchy. Interest Rate Swaps – The Company originates a variable rate loan and enters into a variable-to-fixed interest rate swap with the customer. The Company also enters into an offsetting swap with a correspondent bank. These back-to-back swap agreements are intended to offset each other and allow the Company to originate a variable rate loan, while providing a contract for fixed interest payments for the customer. The Company also enters into interest rate swap contracts with institutional counterparties to hedge against certain fixed-rate loans. The net cash flow for the Company is equal to the interest income received from a variable rate loan originated with the customer. The fair value of these derivatives is based on a market standard discounted cash flow approach. The Company incorporates credit value adjustments on derivatives to properly reflect the respective counterparty’s nonperformance risk in the fair value measurements of its derivatives. The Company has determined that the observable nature of the majority of inputs used in deriving the fair value of these derivative contracts fall within Level 2 of the fair value hierarchy, and the credit valuation adjustments are not significant to the overall valuation of its derivative financial instruments. As a result, the valuation of interest rate swaps is classified as Level 2 of the fair value hierarchy. Equity Warrant Assets – The Company acquired equity warrant assets as a result of the acquisition of Opus. The warrants provide the Bank the right to purchase a specific number of equity shares of the underlying company’s equity at a certain price before expiration and contain net settlement terms qualifying as derivatives under ASC Topic 815 - Derivatives and Hedging . The fair value of equity warrant assets is determined using a Black-Scholes option pricing model and are classified as Level 3 within the fair value hierarchy due to the extent of unobservable inputs. The key assumptions used in determining the fair value include the exercise price of the warrants, valuation of the underlying entity's outstanding stock, expected term, risk-free interest rate, marketability discount for private company warrants, and price volatility. During 2023, the equity warrant assets were either settled or written off as the warrants were determined to not be exercisable until the underlying company’s fair market value is greater than the value established in the warrant agreement. Foreign Exchange Contracts – The Company enters into foreign exchange contracts to accommodate the business needs of its customers. The Company also enters into offsetting contracts with institutional counterparties to mitigate the Company’s foreign exchange exposure with its customers, or enters into bilateral collateral and master netting agreements with certain customer counterparties to manage its credit exposure. The Company measures the fair value of foreign exchange contracts based on quoted prices for identical instruments in active markets, a Level 1 measurement. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Individually Evaluated Loans – A loan is individually evaluated for expected credit losses when it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement and it does not share similar risk characteristics with other loans. Individually evaluated loans are measured at fair value when they are deemed collateral dependent. Fair value on such loans is measured based on the underlying collateral. Collateral generally consists of accounts receivable, inventory, fixed assets, real estate properties, and cash. The Company measures impairment on all individually evaluated loans for which it has reduced the principal balance to the value of the underlying collateral less the anticipated selling costs. Other Real Estate Owned – OREO is initially recorded at the fair value less estimated costs to sell at the date of transfer. This amount becomes the property’s new basis. Any fair value adjustments based on the property’s fair value less estimated costs to sell at the date of acquisition are charged to the allowance for credit losses. The fair value of individually evaluated collateral dependent loans and OREO were determined using Level 3 assumptions, and represents individually evaluated loan for which a specific reserve has been established or on which a write down has been taken. For real estate loans, generally, the Company obtains third party appraisals (or property valuations) and/or collateral audits in conjunction with internal analysis based on historical experience on its individually evaluated loans to determine fair value. In determining the net realizable value of the underlying collateral for individually evaluated loans and OREO, the Company then discounts the valuation to cover both market price fluctuations and selling costs, typically ranging from 7% to 10% of the collateral value, that the Company expects would be incurred in the event of foreclosure. In addition to the discounts taken, the Company’s calculation of net realizable value considered any other senior liens in place on the underlying collateral. For non-real estate loans, fair value of the loan’s collateral may be determined using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions, and management’s expertise and knowledge of the client and client’s business.

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Estimated Fair Value of Securities	The amortized cost and estimated fair value of available-for-sale (“AFS”) investment securities were as follows: (Dollars in thousands) Amortized Gross Unrealized Gross Unrealized Estimated AFS investment securities: September 30, 2024 U.S. Treasury $ 767,202 $ 4,149 $ — $ 771,351 Agency 1,207 — (42) 1,165 Corporate 428,311 265 (23,168) 405,408 Collateralized mortgage obligations 139,456 7 (841) 138,622 Total AFS investment securities $ 1,336,176 $ 4,421 $ (24,051) $ 1,316,546 December 31, 2023 U.S. Treasury $ 538,899 $ 381 $ (24) $ 539,256 Agency 1,941 — (73) 1,868 Corporate 481,499 52 (35,208) 446,343 Collateralized mortgage obligations 153,701 — (1,097) 152,604 Total AFS investment securities $ 1,176,040 $ 433 $ (36,402) $ 1,140,071 The carrying amount and estimated fair value of held-to-maturity (“HTM”) investment securities were as follows: (Dollars in thousands) Amortized Allowance for Credit Losses Net Carrying Amount Gross Unrecognized Gross Unrecognized Estimated HTM investment securities: September 30, 2024 Municipal bonds $ 1,145,201 $ (104) $ 1,145,097 $ 272 $ (204,482) $ 940,887 Collateralized mortgage obligations 316,550 — 316,550 1,532 (2,595) 315,487 Mortgage-backed securities 235,729 — 235,729 671 (26,931) 209,469 Other 16,199 — 16,199 — — 16,199 Total HTM investment securities $ 1,713,679 $ (104) $ 1,713,575 $ 2,475 $ (234,008) $ 1,482,042 December 31, 2023 Municipal bonds $ 1,146,244 $ (126) $ 1,146,118 $ 819 $ (206,361) $ 940,576 Collateralized mortgage obligations 334,997 — 334,997 1,565 (9,570) 326,992 Mortgage-backed securities 232,157 — 232,157 310 (30,798) 201,669 Other 16,269 — 16,269 — — 16,269 Total HTM investment securities $ 1,729,667 $ (126) $ 1,729,541 $ 2,694 $ (246,729) $ 1,485,506
Schedule of Number, Fair Value and Gross Unrealized Holding Losses of the Company's Investment Securities by Investment Category and Length of Time that the Securities have been in a Continuous Loss Position	The table below summarizes the number, fair value, and gross unrealized holding losses of the Company’s AFS investment securities in an unrealized loss position for which an allowance for credit losses (the “ACL”) has not been recorded as of the dates indicated, aggregated by investment category and length of time in a continuous loss position. September 30, 2024 Less than 12 Months 12 Months or Longer Total (Dollars in thousands) Number Fair Gross Number Fair Gross Number Fair Gross AFS investment securities: Agency — $ — $ — 4 $ 1,165 $ (42) 4 $ 1,165 $ (42) Corporate 3 26,523 (50) 34 301,666 (23,118) 37 328,189 (23,168) Collateralized mortgage obligations 1 7,326 (18) 24 122,396 (823) 25 129,722 (841) Total AFS investment securities 4 $ 33,849 $ (68) 62 $ 425,227 $ (23,983) 66 $ 459,076 $ (24,051) December 31, 2023 Less than 12 Months 12 Months or Longer Total (Dollars in thousands) Number Fair Gross Number Fair Gross Number Fair Gross AFS investment securities: U.S. Treasury 4 $ 98,622 $ (24) — $ — $ — 4 $ 98,622 $ (24) Agency — — — 4 1,868 (73) 4 1,868 (73) Corporate 1 4,989 (3) 47 431,353 (35,205) 48 436,342 (35,208) Collateralized mortgage obligations — — — 28 152,604 (1,097) 28 152,604 (1,097) Total AFS investment securities 5 $ 103,611 $ (27) 79 $ 585,825 $ (36,375) 84 $ 689,436 $ (36,402)
Schedule of Allowance for Credit Losses on Company's Held-to-maturity Debt Securities	The following table presents a rollforward by major security type of the ACL on the Company's HTM debt securities as of and for the periods indicated: (Dollars in thousands) Beginning ACL Balance Provision for Credit Losses Ending ACL Balance Three Months Ended September 30, 2024 HTM investment securities: Municipal bonds $ 129 $ (25) $ 104 Three Months Ended September 30, 2023 HTM investment securities: Municipal bonds $ 113 $ 15 $ 128 (Dollars in thousands) Beginning ACL Balance Provision for Credit Losses Ending ACL Balance Nine Months Ended September 30, 2024 HTM investment securities: Municipal bonds $ 126 $ (22) $ 104 Nine Months Ended September 30, 2023 HTM investment securities: Municipal bonds $ 43 $ 85 $ 128
Schedule of Realized Gain (Loss) on Investments	The following table presents the amortized cost of securities sold with related gross realized gains, gross realized losses, and net realized gains for the periods indicated: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Amortized cost of AFS investment securities sold $ — $ — $ — $ 304,182 Gross realized gains $ — $ — $ — $ 986 Gross realized (losses) — — — (848) Net realized gains on sales of AFS investment securities $ — $ — $ — $ 138
Schedule of Amortized Cost and Estimated Fair Value of Investment Securities Available for Sale by Contractual Maturity	The amortized cost and estimated fair value of investment securities at September 30, 2024, by contractual maturity, are shown in the table below. Due in One Year Due after One Year Due after Five Years Due after Total (Dollars in thousands) Amortized Fair Amortized Fair Amortized Fair Amortized Fair Amortized Fair AFS investment securities: U.S. Treasury $ 618,639 $ 620,804 $ 148,563 $ 150,547 $ — $ — $ — $ — $ 767,202 $ 771,351 Agency — — 776 752 — — 431 413 1,207 1,165 Corporate 20,002 19,996 203,372 202,551 204,937 182,861 — — 428,311 405,408 Collateralized mortgage obligations — — 54,957 54,731 41,870 41,625 42,629 42,266 139,456 138,622 Total AFS investment securities 638,641 640,800 407,668 408,581 246,807 224,486 43,060 42,679 1,336,176 1,316,546 HTM investment securities: Municipal bonds — — 38,612 36,884 43,308 39,551 1,063,281 864,452 1,145,201 940,887 Collateralized mortgage obligations — — 57 57 — — 316,493 315,430 316,550 315,487 Mortgage-backed securities — — 2,938 3,025 6,059 6,277 226,732 200,167 235,729 209,469 Other — — — — — — 16,199 16,199 16,199 16,199 Total HTM investment securities — — 41,607 39,966 49,367 45,828 1,622,705 1,396,248 1,713,679 1,482,042 Total investment securities $ 638,641 $ 640,800 $ 449,275 $ 448,547 $ 296,174 $ 270,314 $ 1,665,765 $ 1,438,927 $ 3,049,855 $ 2,798,588

Loans Held for Investment (Tabl

Loans Held for Investment (Tables)	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Schedule of Components of Loans Held for Investment	The following table presents the composition of the loan portfolio for the periods indicated: September 30, December 31, (Dollars in thousands) 2024 2023 Investor loans secured by real estate CRE non-owner-occupied $ 2,202,268 $ 2,421,772 Multifamily 5,388,847 5,645,310 Construction and land 445,146 472,544 SBA secured by real estate 32,228 36,400 Total investor loans secured by real estate 8,068,489 8,576,026 Business loans secured by real estate CRE owner-occupied 2,038,583 2,191,334 Franchise real estate secured 264,696 304,514 SBA secured by real estate 43,943 50,741 Total business loans secured by real estate 2,347,222 2,546,589 Commercial loans Commercial and industrial 1,316,517 1,790,608 Franchise non-real estate secured 237,702 319,721 SBA non-real estate secured 8,407 10,926 Total commercial loans 1,562,626 2,121,255 Retail loans Single family residential 71,552 72,752 Consumer 1,361 1,949 Total retail loans 72,913 74,701 Loans held for investment before basis adjustment (1) 12,051,250 13,318,571 Basis adjustment associated with fair value hedge (2) (16,153) (29,551) Loans held for investment 12,035,097 13,289,020 Allowance for credit losses for loans held for investment (181,248) (192,471) Loans held for investment, net $ 11,853,849 $ 13,096,549 Total unfunded loan commitments $ 1,377,190 $ 1,703,470 Loans held for sale, at lower of cost or fair value $ — $ — ______________________________ (1) Includes net deferred origination costs (fees) of $1.5 million and $(74,000), and unaccreted fair value net purchase discounts of $35.9 million and $43.3 million as of September 30, 2024 and December 31, 2023, respectively. (2) Represents the basis adjustment associated with the application of hedge accounting on certain loans. The basis adjustment will be allocated to the amortized cost of associated loans within the closed portfolio if the hedge is discontinued. Refer to Note 11 – Derivative Instruments for additional information.
Schedule of Investments by Origination Year and Internal Risk Grading System	The following table stratifies the loans held for investment portfolio by the Company’s internal risk grading, and by year of origination, as well as the gross charge-offs on a year-to-date basis by year of origination as of September 30, 2024: Term Loans by Vintage (Dollars in thousands) 2024 2023 2022 2021 2020 Prior Revolving Revolving Converted to Term During the Period Total September 30, 2024 Investor loans secured by real estate CRE non-owner-occupied Pass $ 50,743 $ 31,134 $ 449,405 $ 503,642 $ 164,952 $ 963,283 $ — $ — $ 2,163,159 Special mention — — — — — 2,471 — — 2,471 Substandard 16,089 — 11,549 — 5,784 3,216 — — 36,638 Multifamily Pass 14,921 171,585 1,163,753 1,954,025 679,920 1,369,933 — — 5,354,137 Special mention — — — 3,098 18,949 12,663 — — 34,710 Construction and land Pass 18,613 67,378 282,353 71,328 2,219 3,255 — — 445,146 SBA secured by real estate Pass — — 6,399 — 494 18,008 — — 24,901 Special mention — — — — — 1,125 — — 1,125 Substandard — — — 131 — 6,071 — — 6,202 Total investor loans secured by real estate 100,366 270,097 1,913,459 2,532,224 872,318 2,380,025 — — 8,068,489 Year-to-date gross charge-offs — — — 29 11,539 1,333 — — 12,901 Business loans secured by real estate CRE owner-occupied Pass 30,052 20,963 525,968 615,978 214,189 579,769 — — 1,986,919 Special mention — — 1,235 — — 15,936 918 — 18,089 Substandard — — — — — 33,575 — — 33,575 Franchise real estate secured Pass 1,205 9,693 40,846 104,623 23,827 81,432 — — 261,626 Special mention — — — — — 1,560 — — 1,560 Substandard — — — — — 1,510 — — 1,510 SBA secured by real estate Pass 243 110 9,744 7,052 1,209 22,415 — — 40,773 Substandard — — — — — 3,170 — — 3,170 Total loans secured by business real estate 31,500 30,766 577,793 727,653 239,225 739,367 918 — 2,347,222 Year-to-date gross charge-offs — 93 3,345 581 1,152 645 — — 5,816 Commercial loans Commercial and industrial Pass 37,384 39,403 128,947 136,119 33,882 224,276 671,901 3,942 1,275,854 Special mention 816 628 — 45 177 7 10,378 342 12,393 Substandard — 1,139 9,235 4,335 340 872 9,464 — 25,385 Doubtful — — 2,885 — — — — — 2,885 Term Loans by Vintage (Dollars in thousands) 2024 2023 2022 2021 2020 Prior Revolving Revolving Converted to Term During the Period Total September 30, 2024 Franchise non-real estate secured Pass $ 11 $ 6,982 $ 58,598 $ 82,272 $ 9,274 $ 69,601 $ — $ — $ 226,738 Special mention — — — — — 557 — — 557 Substandard — — 1,190 — — 9,217 — — 10,407 SBA non-real estate secured Pass 307 361 4,261 327 — 2,439 — — 7,695 Substandard — — 500 — 130 82 — — 712 Total commercial loans 38,518 48,513 205,616 223,098 43,803 307,051 691,743 4,284 1,562,626 Year-to-date gross charge-offs — 466 212 182 41 22 1,975 — 2,898 Retail loans Single family residential Pass — 11 — — 160 40,477 30,904 — 71,552 Consumer loans Pass 57 — — 2 2 391 909 — 1,361 Total retail loans 57 11 — 2 162 40,868 31,813 — 72,913 Year-to-date gross charge-offs 5 1 7 1 — 869 — — 883 Loans held for investment before basis adjustment (1) $ 170,441 $ 349,387 $ 2,696,868 $ 3,482,977 $ 1,155,508 $ 3,467,311 $ 724,474 $ 4,284 $ 12,051,250 Total Year-to-date gross charge-offs $ 5 $ 560 $ 3,564 $ 793 $ 12,732 $ 2,869 $ 1,975 $ — $ 22,498 ______________________________ (1) Excludes the basis adjustment of $16.2 million to the carrying amount of certain loans included in fair value hedging relationships. Refer to Note 11 – Derivative Instruments for additional information. The following table stratifies the loans held for investment portfolio by the Company’s internal risk grading, and by year of origination, as of December 31, 2023: Term Loans by Vintage (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Revolving Converted to Term During the Period Total December 31, 2023 Investor loans secured by real estate CRE non-owner-occupied Pass $ 71,452 $ 482,045 $ 549,828 $ 192,399 $ 315,139 $ 795,856 $ — $ — $ 2,406,719 Special mention — 3,811 2,530 — — 625 — — 6,966 Substandard — 412 — — — 7,675 — — 8,087 Multifamily Pass 179,055 1,184,329 2,008,126 725,123 822,411 714,638 — — 5,633,682 Special mention — — — — — 11,628 — — 11,628 Construction and land Pass 59,993 309,677 94,845 2,223 2,368 3,438 — — 472,544 SBA secured by real estate Pass $ — $ 6,478 $ — $ 493 $ 4,804 $ 16,496 $ — $ — $ 28,271 Substandard — — 131 — 536 7,462 — — 8,129 Total investor loans secured by real estate 310,500 1,986,752 2,655,460 920,238 1,145,258 1,557,818 — — 8,576,026 Term Loans by Vintage (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Revolving Converted to Term During the Period Total December 31, 2023 Year-to-date gross charge-offs $ — $ — $ 217 $ — $ 1,582 $ 3,653 $ — $ — $ 5,452 Business loans secured by real estate CRE owner-occupied Pass 19,014 543,413 660,967 224,333 211,283 458,975 — — 2,117,985 Special mention — 16,535 — 476 4,775 11,775 919 — 34,480 Substandard — 15,539 2,162 5,505 3,873 11,790 — — 38,869 Franchise real estate secured Pass 10,580 39,239 124,424 25,697 15,731 72,342 — — 288,013 Special mention 1,758 3,603 1,903 — 795 1,615 — — 9,674 Substandard — 3,964 — — 2,571 292 — — 6,827 SBA secured by real estate Pass 113 9,334 7,634 1,979 4,109 22,417 — — 45,586 Special mention — 536 — — — 83 — — 619 Substandard — — — — — 4,536 — — 4,536 Total loans secured by business real estate 31,465 632,163 797,090 257,990 243,137 583,825 919 — 2,546,589 Year-to-date gross charge-offs — — 318 191 — 1,861 — — 2,370 Commercial loans Commercial and industrial Pass 46,765 172,987 160,275 40,988 110,526 146,310 966,733 6,518 1,651,102 Special mention 239 23,242 12,270 367 16 2,139 42,570 407 81,250 Substandard 425 8,052 2,689 588 173 1,138 26,462 14,187 53,714 Doubtful and loss — — — — — — — 4,542 4,542 Franchise non-real estate secured Pass 6,801 74,441 112,112 16,355 34,770 53,957 — 753 299,189 Special mention 433 845 1,633 — 627 692 — — 4,230 Substandard — 1,646 322 2,324 10,451 1,559 — — 16,302 SBA non-real estate secured Pass 1,075 4,485 343 113 1,464 2,490 — — 9,970 Substandard — 527 — 141 53 235 — — 956 Total commercial loans 55,738 286,225 289,644 60,876 158,080 208,520 1,035,765 26,407 2,121,255 Year-to-date gross charge-offs 132 3,053 62 5 362 37 6,387 503 10,541 Retail loans Single family residential Pass 20 — — 167 — 44,104 28,461 — 72,752 Consumer loans Pass — — 3 9 5 788 1,144 — 1,949 Total retail loans 20 — 3 176 5 44,892 29,605 — 74,701 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 983 $ 3 $ — $ 986 Loans held for investment before basis adjustment (1) $ 397,723 $ 2,905,140 $ 3,742,197 $ 1,239,280 $ 1,546,480 $ 2,395,055 $ 1,066,289 $ 26,407 $ 13,318,571 Total Year-to-date gross charge-offs $ 132 $ 3,053 $ 597 $ 196 $ 1,944 $ 6,534 $ 6,390 $ 503 $ 19,349 ______________________________ (1) Excludes the basis adjustment of $29.6 million to the carrying amount of certain loans included in fair value hedging relationships. Refer to Note 11 – Derivative Instruments for additional information.
Schedule of Delinquencies in the Company's Loan Portfolio	The following tables stratify the loans held for investment portfolio by delinquency as of the periods indicated: Days Past Due (2) (Dollars in thousands) Current 30-59 60-89 90+ Total September 30, 2024 Investor loans secured by real estate CRE non-owner-occupied $ 2,201,885 $ — $ — $ 383 $ 2,202,268 Multifamily 5,388,847 — — — 5,388,847 Construction and land 445,146 — — — 445,146 SBA secured by real estate 30,926 1,115 — 187 32,228 Total investor loans secured by real estate 8,066,804 1,115 — 570 8,068,489 Business loans secured by real estate CRE owner-occupied 2,034,009 — — 4,574 2,038,583 Franchise real estate secured 264,696 — — — 264,696 SBA secured by real estate 43,943 — — — 43,943 Total business loans secured by real estate 2,342,648 — — 4,574 2,347,222 Commercial loans Commercial and industrial 1,313,441 893 715 1,468 1,316,517 Franchise non-real estate secured 237,702 — — — 237,702 SBA not secured by real estate 7,876 — — 531 8,407 Total commercial loans 1,559,019 893 715 1,999 1,562,626 Retail loans Single family residential 71,552 — — — 71,552 Consumer loans 1,361 — — — 1,361 Total retail loans 72,913 — — — 72,913 Loans held for investment before basis adjustment (1) $ 12,041,384 $ 2,008 $ 715 $ 7,143 $ 12,051,250 December 31, 2023 Investor loans secured by real estate CRE non-owner-occupied $ 2,421,360 $ — $ — $ 412 $ 2,421,772 Multifamily 5,645,310 — — — 5,645,310 Construction and land 472,544 — — — 472,544 SBA secured by real estate 35,980 — — 420 36,400 Total investor loans secured by real estate 8,575,194 — — 832 8,576,026 Business loans secured by real estate CRE owner-occupied 2,186,679 — — 4,655 2,191,334 Franchise real estate secured 304,222 292 — — 304,514 SBA secured by real estate 50,604 137 — — 50,741 Total business loans secured by real estate 2,541,505 429 — 4,655 2,546,589 Commercial loans Commercial and industrial 1,788,855 228 1,294 231 1,790,608 Franchise non-real estate secured 318,162 1,559 — — 319,721 SBA not secured by real estate 10,119 249 — 558 10,926 Total commercial loans 2,117,136 2,036 1,294 789 2,121,255 Retail loans Single family residential 72,733 19 — — 72,752 Consumer loans 1,949 — — — 1,949 Total retail loans 74,682 19 — — 74,701 Loans held for investment before basis adjustment (1) $ 13,308,517 $ 2,484 $ 1,294 $ 6,276 $ 13,318,571 ______________________________ (1) Excludes the basis adjustment of $16.2 million and $29.6 million to the carrying amount of certain loans included in fair value hedging relationships as of September 30, 2024 and December 31, 2023, respectively. Refer to Note 11 – Derivative Instruments for additional information. (2) Nonaccrual loans are included in this aging analysis based on the loan’s past due status.
Schedule of Nonaccrual Loans	The following tables provide a summary of nonaccrual loans as of the dates indicated: Nonaccrual Loans (1) Collateral Dependent Loans Non-Collateral Dependent Loans Total Nonaccrual Loans Nonaccrual Loans with No ACL (Dollars in thousands) Balance ACL Balance ACL September 30, 2024 Investor loans secured by real estate CRE non-owner-occupied $ 19,042 $ — $ — $ — $ 19,042 $ 19,042 SBA secured by real estate 1,725 559 — — 1,725 610 Total investor loans secured by real estate 20,767 559 — — 20,767 19,652 Business loans secured by real estate CRE owner-occupied 4,574 — — — 4,574 4,574 Total business loans secured by real estate 4,574 — — — 4,574 4,574 Commercial loans Commercial and industrial 2,274 193 10,938 — 13,212 13,019 SBA non-real estate secured 531 — — — 531 531 Total commercial loans 2,805 193 10,938 — 13,743 13,550 Total nonaccrual loans $ 28,146 $ 752 $ 10,938 $ — $ 39,084 $ 37,776 Nonaccrual Loans (1) (Dollars in thousands) Collateral Dependent Loans ACL Non-Collateral Dependent Loans ACL Total Nonaccrual Loans Nonaccrual Loans with No ACL December 31, 2023 Investor loans secured by real estate CRE non-owner-occupied $ 412 $ — $ — $ — $ 412 $ 412 SBA secured by real estate 1,205 — — — 1,205 1,205 Total investor loans secured by real estate 1,617 — — — 1,617 1,617 Business loans secured by real estate CRE owner-occupied 8,666 — — — 8,666 8,666 Total business loans secured by real estate 8,666 — — — 8,666 8,666 Commercial loans Commercial and industrial 1,381 — 12,595 — 13,976 13,976 SBA non-real estate secured 558 — — — 558 558 Total commercial loans 1,939 — 12,595 — 14,534 14,534 Total nonaccrual loans $ 12,222 $ — $ 12,595 $ — $ 24,817 $ 24,817 ______________________________ (1) The ACL for nonaccrual loans is determined based on a discounted cash flow methodology unless the loan is considered collateral dependent; otherwise, the ACL for collateral dependent nonaccrual loans is determined based on the estimated fair value of the underlying collateral.
Schedule of Financing Receivable, MLTB	The following table shows the amortized cost of the MLTBs by class and type of modification, as well as the percentage of the loans modified to the total class of loans at and during the three months ended September 30, 2023: Three Months Ended September 30, 2023 Other-than-Insignificant Payment Delay (Dollars in thousands) Balance Percent of Total Class of Loans Commercial loans Commercial and industrial $ 13,021 0.82 % Total commercial loans $ 13,021 The following table shows the amortized cost of the MLTBs by class and type of modification, as well as the percentage of the loans modified to the total class of loans at and during the nine months ended September 30, 2024 and 2023: Nine Months Ended September 30, 2024 Combination of Other-than-Insignificant Payment Delay and Term Extension (Dollars in thousands) Balance Percent of Total Class of Loans Investor loans secured by real estate CRE non-owner-occupied $ 16,089 0.73 % Total investor loans secured by real estate $ 16,089 Nine Months Ended September 30, 2023 Other-than-Insignificant Payment Delay (Dollars in thousands) Balance Percent of Total Class of Loans Commercial loans Commercial and industrial $ 13,021 0.82 % Total commercial loans $ 13,021 The following table describes the financial effect of the loan modification made for the borrower experiencing financial difficulty during the nine months ended September 30, 2024: Combination of Other-than-Insignificant Payment Delay and Term Extension Investor loans secured by real estate CRE non-owner-occupied Consolidated 3 loans with varying maturities into a single loan that extended the weighted average maturity by 6 months and 2 years of interest only payments The following table describes the financial effect of the loan modification made for the borrower experiencing financial difficulty during the three and nine months ended September 30, 2023: Other-than-Insignificant Payment Delay Commercial loans Commercial and industrial 1 year of interest-only payments The following table depicts the performance of the loans that were modified in the past 12 months as of the dates indicated: Days Past Due (Dollars in thousands) Current 30-59 60-89 90+ Total September 30, 2024 Investor loans secured by real estate CRE non-owner-occupied $ 16,089 $ — $ — $ — $ 16,089 Total investor loans secured by real estate $ 16,089 $ — $ — $ — $ 16,089 September 30, 2023 Commercial loans Commercial and industrial $ 13,021 $ — $ — $ — $ 13,021 Total commercial loans $ 13,021 $ — $ — $ — $ 13,021
Schedule of Collateral Dependent Loans by Collateral Type	The following tables summarize collateral dependent loans by collateral type as of the dates indicated: (Dollars in thousands) Office Properties Retail Properties Land Properties Hotel Properties Other CRE Properties Business Assets Total September 30, 2024 Investor loan secured by real estate CRE non-owner-occupied $ 16,089 $ 1,005 $ — $ — $ 1,948 $ — $ 19,042 SBA secured by real estate — — — 1,725 — — 1,725 Total investor loans secured by real estate 16,089 1,005 — 1,725 1,948 — 20,767 Business loans secured by real estate CRE owner-occupied — — 4,574 — — — 4,574 Total business loans secured by real estate — — 4,574 — — — 4,574 Commercial loans Commercial and industrial — — 227 — — 2,047 2,274 SBA non-real estate secured — — — — — 531 531 Total commercial loans — — 227 — — 2,578 2,805 Total collateral dependent loans $ 16,089 $ 1,005 $ 4,801 $ 1,725 $ 1,948 $ 2,578 $ 28,146 December 31, 2023 Investor loan secured by real estate CRE non-owner-occupied $ — $ 412 $ — $ — $ — $ — $ 412 SBA secured by real estate — — — 1,205 — — 1,205 Total investor loans secured by real estate — 412 — 1,205 — — 1,617 Business loans secured by real estate CRE owner-occupied 4,011 — 4,655 — — — 8,666 Total business loans secured by real estate 4,011 — 4,655 — — — 8,666 Commercial loans Commercial and industrial — — 231 — — 1,150 1,381 SBA non-real estate secured — — — — — 558 558 Total commercial loans — — 231 — — 1,708 1,939 Total collateral dependent loans $ 4,011 $ 412 $ 4,886 $ 1,205 $ — $ 1,708 $ 12,222

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2024
Allowance for Credit Loss [Abstract]
Schedule of Allocation of the Allowance for Loan Losses	The following tables provide the allocation of the ACL for loans held for investment as well as the activity in the ACL attributed to various segments in the loan portfolio as of, and for the periods indicated: Three Months Ended September 30, 2024 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending ACL Balance Investor loans secured by real estate CRE non-owner-occupied $ 29,738 $ — $ — $ (464) $ 29,274 Multifamily 57,298 — — 8,667 65,965 Construction and land 10,804 — — 180 10,984 SBA secured by real estate 2,142 — — 457 2,599 Business loans secured by real estate CRE owner-occupied 28,531 (1,152) — 580 27,959 Franchise real estate secured 6,794 — — (1,680) 5,114 SBA secured by real estate 4,134 — — (490) 3,644 Commercial loans Commercial and industrial 32,257 (1,239) 2 (6,038) 24,982 Franchise non-real estate secured 11,130 — 125 (1,357) 9,898 SBA non-real estate secured 482 — 5 (139) 348 Retail loans Single family residential 399 — — (11) 388 Consumer loans 94 (48) 1 46 93 Totals $ 183,803 $ (2,439) $ 133 $ (249) $ 181,248 Nine Months Ended September 30, 2024 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner occupied $ 31,030 $ (5,123) $ 1,500 $ 1,867 $ 29,274 Multifamily 56,312 (7,372) 5 17,020 65,965 Construction and land 9,314 — — 1,670 10,984 SBA secured by real estate 2,182 (406) 86 737 2,599 Business loans secured by real estate CRE owner-occupied 28,787 (5,604) 184 4,592 27,959 Franchise real estate secured 7,499 (212) — (2,173) 5,114 SBA secured by real estate 4,427 — 2 (785) 3,644 Commercial loans Commercial and industrial 36,692 (2,792) 189 (9,107) 24,982 Franchise non-real estate secured 15,131 (100) 1,500 (6,633) 9,898 SBA non-real estate secured 458 (6) 10 (114) 348 Retail loans Single family residential 505 — 3 (120) 388 Consumer loans 134 (883) 1 841 93 Totals $ 192,471 $ (22,498) $ 3,480 $ 7,795 $ 181,248 Three Months Ended September 30, 2023 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner-occupied $ 31,545 $ — $ 51 $ (13) $ 31,583 Multifamily 55,648 — — (427) 55,221 Construction and land 7,707 — — 799 8,506 SBA secured by real estate 2,331 (108) — (24) 2,199 Business loans secured by real estate CRE owner-occupied 28,515 — 12 559 29,086 Franchise real estate secured 6,855 — — 711 7,566 SBA secured by real estate 4,511 — 128 (77) 4,562 Commercial loans Commercial and industrial 39,586 (7,386) 565 (268) 32,497 Franchise non-real estate secured 14,642 — 50 1,087 15,779 SBA non-real estate secured 399 (67) 3 137 472 Retail loans Single family residential 455 — — 36 491 Consumer loans 139 — — (3) 136 Totals $ 192,333 $ (7,561) $ 809 $ 2,517 $ 188,098 Nine Months Ended September 30, 2023 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner-occupied $ 33,692 $ (2,657) $ 66 $ 482 $ 31,583 Multifamily 56,334 (290) 1 (824) 55,221 Construction and land 7,114 — — 1,392 8,506 SBA secured by real estate 2,592 (108) — (285) 2,199 Business loans secured by real estate CRE owner-occupied 32,340 (2,370) 36 (920) 29,086 Franchise real estate secured 7,019 — — 547 7,566 SBA secured by real estate 4,348 — 208 6 4,562 Commercial loans Commercial and industrial 35,169 (8,734) 945 5,117 32,497 Franchise non-real estate secured 16,029 — 150 (400) 15,779 SBA non-real estate secured 441 (67) 68 30 472 Retail loans Single family residential 352 (90) 1 228 491 Consumer loans 221 (895) 35 775 136 Totals $ 195,651 $ (15,211) $ 1,510 $ 6,148 $ 188,098
Schedule of Fair Value, off-Balance-Sheet Risks	The following table summarizes the activities in the ACL for off-balance sheet commitments for the periods indicated: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Beginning ACL balance $ 16,334 $ 24,455 $ 19,264 $ 23,641 Provision for credit losses on off-balance sheet commitments 760 1,386 (2,170) 2,200 Ending ACL balance $ 17,094 $ 25,841 $ 17,094 $ 25,841

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-lived Intangible Assets	The following table summarizes the change in the balances of core deposit and customer relationship intangible assets, and the related accumulated amortization for the periods indicated below: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Gross amount of intangible assets: Beginning balance $ 145,212 $ 145,212 $ 145,212 $ 145,212 Additions due to acquisitions — — — — Ending balance 145,212 145,212 145,212 145,212 Accumulated amortization: Beginning balance (107,526) (95,850) (101,927) (89,624) Amortization (2,762) (3,055) (8,361) (9,281) Ending balance (110,288) (98,905) (110,288) (98,905) Net intangible assets $ 34,924 $ 46,307 $ 34,924 $ 46,307

Subordinated Debentures (Tables

Subordinated Debentures (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Schedule of Outstanding Subordinated Debentures	The following table summarizes our outstanding subordinated debentures as of the dates indicated: Carrying Value (Dollars in thousands) Stated Maturity Current Interest Rate Current Principal Balance September 30, 2024 December 31, 2023 Subordinated notes Subordinated notes due 2024, 5.75% per annum September 3, 2024 — % $ — $ — $ 59,910 Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month term SOFR +2.762% thereafter May 15, 2029 7.880 % 125,000 123,832 123,641 Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month term SOFR +5.17% thereafter June 15, 2030 5.375 % 150,000 148,488 148,291 Total subordinated debentures $ 275,000 $ 272,320 $ 331,842

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Schedule of Company's Unaudited Earnings Per Share Calculations	The following tables set forth the Corporation’s earnings per share calculations for the periods indicated: Three Months Ended (Dollars in thousands, except per share data) September 30, 2024 September 30, 2023 Basic Net income $ 35,979 $ 46,030 Less: dividends and undistributed earnings allocated to participating securities (667) (823) Net income allocated to common stockholders $ 35,312 $ 45,207 Weighted average common shares outstanding 94,650,096 94,189,844 Basic earnings per common share $ 0.37 $ 0.48 Diluted Net income allocated to common stockholders $ 35,312 $ 45,207 Weighted average common shares outstanding 94,650,096 94,189,844 Dilutive effect of share-based compensation 125,831 93,164 Weighted average diluted common shares 94,775,927 94,283,008 Diluted earnings per common share $ 0.37 $ 0.48 Nine Months Ended (Dollars in thousands, except per share data) September 30, 2024 September 30, 2023 Basic Net income $ 124,909 $ 166,228 Less: dividends and undistributed earnings allocated to participating securities (2,241) (2,674) Net income allocated to common stockholders $ 122,668 $ 163,554 Weighted average common shares outstanding 94,543,243 94,072,463 Basic earnings per common share $ 1.30 $ 1.74 Diluted Net income allocated to common stockholders $ 122,668 $ 163,554 Weighted average common shares outstanding 94,543,243 94,072,463 Dilutive effect of share-based compensation 109,340 142,383 Weighted average diluted common shares 94,652,583 94,214,846 Diluted earnings per common share $ 1.30 $ 1.74

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of Company's Financial Instruments Measured at Fair Value on a Recurring Basis	The following fair value hierarchy table presents information about the Company’s financial assets and liabilities measured at fair value on a recurring basis at the dates indicated: September 30, 2024 Fair Value Measurement Using Total Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets AFS investment securities: U.S. Treasury $ — $ 771,351 $ — $ 771,351 Agency — 1,165 — 1,165 Corporate — 405,408 — 405,408 Collateralized mortgage obligations — 138,622 — 138,622 Total AFS investment securities $ — $ 1,316,546 $ — $ 1,316,546 Equity securities $ 737 $ — $ — $ 737 Derivative assets: Foreign exchange contracts $ 3 $ — $ — $ 3 Interest rate swaps (1) — 4,199 — 4,199 Total derivative assets $ 3 $ 4,199 $ — $ 4,202 Financial liabilities Derivative liabilities: Foreign exchange $ 2 $ — $ — $ 2 Interest rate swaps — 8,380 — 8,380 Total derivative liabilities $ 2 $ 8,380 $ — $ 8,382 ______________________________ (1) Represents amounts after the application of variation margin payments as settlements with central counterparties, where applicable. See Note 11 – Derivative Instruments for additional information. December 31, 2023 Fair Value Measurement Using Total Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets AFS investment securities: U.S. Treasury $ — $ 539,256 $ — $ 539,256 Agency — 1,868 — 1,868 Corporate — 446,343 — 446,343 Collateralized mortgage obligations — 152,604 — 152,604 Total AFS investment securities $ — $ 1,140,071 $ — $ 1,140,071 Equity securities $ 759 $ — $ — $ 759 Derivative assets: Foreign exchange contracts $ 1 $ — $ — $ 1 Interest rate swaps (1) — 5,643 — 5,643 Total derivative assets $ 1 $ 5,643 $ — $ 5,644 Financial liabilities Derivative liabilities: Foreign exchange $ 10 $ — $ — $ 10 Interest rate swaps — 10,705 — 10,705 Total derivative liabilities $ 10 $ 10,705 $ — $ 10,715 ______________________________ (1) Represents amounts after the application of variation margin payments as settlements with central counterparties, where applicable. See Note 11 – Derivative Instruments for additional information.
Schedule of Reconciliation of Fair Value of Equity Warrants	The following table is a reconciliation of the fair value of the equity warrants that are classified as Level 3 and measured on a recurring basis as of: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Beginning balance $ — $ 407 $ — $ 1,894 Change in fair value (1) — (16) — (41) Net exercise — — — (1,462) Ending balance $ — $ 391 $ — $ 391 ______________________________ (1) The changes in fair value are included in other income on the consolidated statement of income.
Schedule of Company's Financial Instruments Measured at Fair Value on a Nonrecurring Basis	The following table presents our assets measured at fair value on a nonrecurring basis at the dates indicated. (Dollars in thousands) Fair Value Measurement Using Total September 30, 2024 Level 1 Level 2 Level 3 Financial assets Collateral dependent loans $ — $ — $ 557 $ 557 Total assets $ — $ — $ 557 $ 557 December 31, 2023 Financial assets Collateral dependent loans $ — $ — $ 1,569 $ 1,569 Other real estate owned — — 248 248 Total assets $ — $ — $ 1,817 $ 1,817
Schedule of Quantitative Information for Level 3 Fair Value Measurements	The following table presents quantitative information about Level 3 fair value measurements for assets measured at fair value on a nonrecurring basis at the dates indicated. Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average September 30, 2024 Investor loans secured by real estate SBA secured by real estate (1) $ 557 Fair value of collateral Cost to sell 10.00% 10.00% 10.00% Total individually evaluated loans 557 Total assets $ 557 December 31, 2023 Investor loans secured by real estate SBA secured by real estate (1) $ 419 Fair value of collateral Cost to sell 10.00% 10.00% 10.00% Commercial loans Commercial and industrial 1,150 Fair value of collateral Cost to sell 7.00% 7.00% 7.00% Total individually evaluated loans 1,569 Other real estate owned 248 Fair value of property Cost to sell 10.00% 10.00% 10.00% Total assets $ 1,817 ______________________________ (1) SBA loans that are collateralized by hotel/motel real property.
Schedule of Carrying Amount and Estimated Fair Value of Financial Instruments	The fair value estimates presented herein are based on pertinent information available to management as of the dates indicated, representing an exit price. (Dollars in thousands) Carrying Level 1 Level 2 Level 3 Estimated September 30, 2024 Assets Cash and cash equivalents $ 982,249 $ 982,249 $ — $ — $ 982,249 Interest-bearing time deposits with financial institutions 1,246 1,246 — — 1,246 HTM investment securities 1,713,575 — 1,482,042 — 1,482,042 AFS investment securities 1,316,546 — 1,316,546 — 1,316,546 Equity securities 737 737 — — 737 Loans held for investment, net 12,035,097 — — 11,567,236 11,567,236 Derivative assets (1) 4,202 3 4,199 — 4,202 Accrued interest receivable 64,803 — 64,803 — 64,803 Liabilities Deposit accounts $ 14,480,927 $ — $ 14,498,492 $ — $ 14,498,492 Subordinated debentures 272,320 — 267,936 — 267,936 Derivative liabilities (1) 8,382 2 8,380 — 8,382 Accrued interest payable 13,404 — 13,404 — 13,404 December 31, 2023 Assets Cash and cash equivalents $ 936,473 $ 936,473 $ — $ — $ 936,473 Interest-bearing time deposits with financial institutions 995 995 — — 995 HTM investment securities 1,729,541 — 1,485,506 — 1,485,506 AFS investment securities 1,140,071 — 1,140,071 — 1,140,071 Equity securities 759 759 — — 759 Loans held for investment, net 13,289,020 — — 12,562,323 12,562,323 Derivative assets (1) 5,644 1 5,643 — 5,644 Accrued interest receivable 68,516 — 68,516 — 68,516 Liabilities Deposit accounts $ 14,995,626 $ — $ 15,003,769 $ — $ 15,003,769 FHLB advances 600,000 — 592,480 — 592,480 Subordinated debentures 331,842 — 320,687 — 320,687 Derivative liabilities (1) 10,715 10 10,705 — 10,715 Accrued interest payable 18,671 — 18,671 — 18,671 ______________________________ (1) Represents amounts after the application of variation margin payments as settlements with central counterparties, where applicable. See Note 11 – Derivative Instruments for additional information.

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Condition and Statements of Income Related to Cumulative Basis Adjustment for Fair Value Hedges	The following amounts were recorded on the consolidated statement of financial condition related to cumulative basis adjustment for fair value hedges as of the dates indicated: Line Item in the Statement of Financial Position in Which the Hedged Item is Included Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets (Dollars in thousands) September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Loans held for investment (1) $ 783,847 $ 1,320,449 $ (15,499) (2) $ (29,551) Total $ 783,847 $ 1,320,449 $ (15,499) $ (29,551) ______________________________ (1) These amounts were included in the amortized cost basis of closed portfolios of loans held for investment used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolios anticipated to be outstanding for the designated hedge period. At September 30, 2024 and December 31, 2023, the amortized cost basis of the closed portfolios used in these hedging relationships was $2.04 billion and $3.25 billion, respectively, the cumulative basis adjustments associated with these hedging relationships was $(15.5) million and $(29.6) million, respectively, and the amounts of the designated hedged items were $800.0 million and $1.35 billion, respectively. (2) At September 30, 2024, the balance included $654,000 hedging adjustment on discontinued hedging relationships. The following table presents the effect of fair value hedge accounting on the consolidated statements of income: Three Months Ended Nine Months Ended (Dollars in thousands) Location of Gain (Loss) Recognized in Income on Derivative Instruments September 30, 2024 September 30, 2023 September 30, 2024 September 30, 2023 Gain (loss) on fair value hedging relationships: Hedged items Interest Income $ 12,048 $ 4,300 $ 13,398 $ 13,096 Derivatives designated as hedging instruments Interest Income (5,123) 6,268 8,068 15,578
Schedule of Derivative Instruments	The following tables summarize the Company's derivative instruments included in “other assets” and “other liabilities” in the consolidated statements of financial condition as of the dates indicated: September 30, 2024 Derivative Assets Derivative Liabilities (Dollars in thousands) Notional Fair Value Notional Fair Value Derivative instruments designated as hedging instruments: Fair value hedge - interest rate swap contracts $ 500,000 $ 17,239 $ 300,000 $ 67 Total derivative designated as hedging instruments 500,000 17,239 300,000 67 Derivative instruments not designated as hedging instruments: Foreign exchange contracts 81 3 287 2 Interest rate swaps contracts 95,268 8,215 95,268 8,225 Total derivative not designated as hedging instruments 95,349 8,218 95,555 8,227 Total derivatives $ 595,349 25,457 $ 395,555 8,294 Netting adjustments - cleared positions (1) 21,255 (88) Total derivatives in the Statement of Financial Condition $ 4,202 $ 8,382 December 31, 2023 Derivative Assets Derivative Liabilities (Dollars in thousands) Notional Fair Value Notional Fair Value Derivative instruments designated as hedging instruments: Fair value hedge - interest rate swap contracts $ 600,000 $ 34,541 $ 750,000 $ 3,184 Total derivative designated as hedging instruments 600,000 34,541 750,000 3,184 Derivative instruments not designated as hedging instruments: Foreign exchange contracts 19 1 410 10 Interest rate swaps contracts 103,954 10,397 103,954 10,409 Total derivative not designated as hedging instruments 103,973 10,398 104,364 10,419 Total derivatives $ 703,973 $ 44,939 $ 854,364 $ 13,603 Netting adjustments - cleared positions (1) 39,295 2,888 Total derivatives in the Statement of Financial Condition $ 5,644 $ 10,715 ______________________________ (1) Netting adjustments represents the variation margin payments that are considered legal settlements of derivative exposure and applied to net the fair value of the respective derivative contracts in accordance with the applicable accounting guidance on the settle-to-market rule for cleared derivatives. The following table summarizes the effect of the derivatives not designated as hedging instruments in the consolidated statements of income. (Dollars in thousands) Three Months Ended Nine Months Ended Derivatives Not Designated as Hedging Instruments: Location of Gain (Loss) Recognized in Income on Derivative Instruments September 30, 2024 September 30, 2023 September 30, 2024 September 30, 2023 Foreign exchange contracts Other income $ 181 $ 205 $ 533 $ 688 Interest rate products Other income (1) (9) 2 (9) Equity warrants Other income — (16) — (802) Total $ 180 $ 180 $ 535 $ (123)

Balance Sheet Offsetting (Table

Balance Sheet Offsetting (Tables)	9 Months Ended
	Sep. 30, 2024
Offsetting [Abstract]
Schedule of Financial Instruments Eligible for Offset in Consolidated Statements of Financial Condition	Financial instruments that are eligible for offset in the consolidated statements of financial condition as of the periods indicated are presented below: Gross Amounts Recognized (1) Gross Amounts Offset in the Consolidated Statements of Financial Condition Net Amounts Presented in the Consolidated Statements of Financial Condition Gross Amounts Not Offset in the Consolidated Net Amount (Dollars in thousands) Financial Instruments (2) Cash Collateral (3) September 30, 2024 Derivative assets: Interest rate swaps $ 4,199 $ — $ 4,199 $ — $ (3,530) $ 669 Total $ 4,199 $ — $ 4,199 $ — $ (3,530) $ 669 Derivative liabilities: Interest rate swaps $ 8,380 $ — $ 8,380 $ — $ — $ 8,380 Total $ 8,380 $ — $ 8,380 $ — $ — $ 8,380 December 31, 2023 Derivative assets: Interest rate swaps $ 5,643 $ — $ 5,643 $ — $ (4,610) $ 1,033 Total $ 5,643 $ — $ 5,643 $ — $ (4,610) $ 1,033 Derivative liabilities: Interest rate swaps $ 10,705 $ — $ 10,705 $ — $ — $ 10,705 Total $ 10,705 $ — $ 10,705 $ — $ — $ 10,705 ______________________________ (1) Represents amounts after the application of variation margin payments as settlements with central counterparties, where applicable. (2) Represents the fair value of securities pledged with counterparty bank. (3) Represents cash collateral received from or pledged with counterparty bank. Amounts are limited to the derivative asset or liability balance and, accordingly, do not include excess collateral, if any, received or pledged.

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Variable Interest Entities	The following table provides a summary of the carrying amount of assets and liabilities in the Company’s consolidated statements of financial condition and maximum exposure to loss as of September 30, 2024 and December 31, 2023 that relate to variable interests in non-consolidated VIEs. September 30, 2024 December 31, 2023 (Dollars in thousands) Maximum Loss Assets Liabilities Maximum Loss Assets Liabilities Multifamily loan securitization: Investment securities (1) $ 42,266 $ 42,266 $ — $ 48,204 $ 48,204 $ — Reimbursement obligation (2) 42,305 — 345 47,994 — 345 Affordable housing partnership: Other investments (3) 49,944 83,339 — 57,016 89,085 — Unfunded equity commitments (2) — — 33,395 — — 32,070 Total $ 134,515 $ 125,605 $ 33,740 $ 153,214 $ 137,289 $ 32,415 ______________________________ (1) Included in investment securities AFS on the consolidated statement of financial condition. (2) Included in accrued expenses and other liabilities on the consolidated statement of financial condition. (3)

Tax Equity Investments (Tables)

Tax Equity Investments (Tables)	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Schedule of Estimates for Unfunded Affordable Housing Commitments	As of September 30, 2024, the Company’s unfunded commitments associated with tax equity investments, which are comprised of investments in affordable housing partnerships, were estimated to be paid as follows: (Dollars in thousands) Amount Year Ending December 31, 2024 $ 3,885 2025 14,727 2026 11,027 2027 720 2028 469 Thereafter 2,567 Total unfunded commitments $ 33,395 The following table presents income tax credits and other income tax benefits, as well as amortization expense, associated with investments in qualified affordable housing partnerships where the proportional amortization method of accounting has been applied for the periods indicated. Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, (Dollars in thousands) 2024 2023 2024 2023 Tax credit and other tax benefits recognized (1) $ 4,309 $ 4,189 $ 12,743 $ 11,746 Amortization of investments (1) 3,546 3,360 $ 10,496 $ 9,464 ______________________________ (1) Amounts for income tax credits and other income tax benefits, as well as amortization of investments, are included in income tax expense in the consolidated statements of income, and net change in accrued interest receivable and other assets on the consolidated statements of cash flows, for the periods presented above.

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
AFS investment securities:
Amortized  Cost	$ 1,336,176		$ 1,176,040
Gross Unrealized Gain	4,421		433
Gross Unrealized Loss	(24,051)		(36,402)
Estimated Fair Value	1,316,546		1,140,071
HTM investment securities:
Amortized  Cost	1,713,679		1,729,667
Allowance for Credit Losses	(104)		(126)
Net Carrying Amount	1,713,575		1,729,541
Gross Unrecognized Gain	2,475		2,694
Gross Unrecognized Loss	(234,008)		(246,729)
Estimated Fair Value	1,482,042		1,485,506
U.S. Treasury
AFS investment securities:
Amortized  Cost	767,202		538,899
Gross Unrealized Gain	4,149		381
Gross Unrealized Loss	0		(24)
Estimated Fair Value	771,351		539,256
Agency
AFS investment securities:
Amortized  Cost	1,207		1,941
Gross Unrealized Gain	0		0
Gross Unrealized Loss	(42)		(73)
Estimated Fair Value	1,165		1,868
Corporate
AFS investment securities:
Amortized  Cost	428,311		481,499
Gross Unrealized Gain	265		52
Gross Unrealized Loss	(23,168)		(35,208)
Estimated Fair Value	405,408		446,343
Collateralized mortgage obligations
AFS investment securities:
Amortized  Cost	139,456		153,701
Gross Unrealized Gain	7		0
Gross Unrealized Loss	(841)		(1,097)
Estimated Fair Value	138,622		152,604
HTM investment securities:
Amortized  Cost	316,550		334,997
Allowance for Credit Losses	0		0
Net Carrying Amount	316,550		334,997
Gross Unrecognized Gain	1,532		1,565
Gross Unrecognized Loss	(2,595)		(9,570)
Estimated Fair Value	315,487		326,992
Municipal bonds
HTM investment securities:
Amortized  Cost	1,145,201		1,146,244
Allowance for Credit Losses	(104)	$ (129)	(126)	$ (128)	$ (113)	$ (43)
Net Carrying Amount	1,145,097		1,146,118
Gross Unrecognized Gain	272		819
Gross Unrecognized Loss	(204,482)		(206,361)
Estimated Fair Value	940,887		940,576
Mortgage-backed securities
HTM investment securities:
Amortized  Cost	235,729		232,157
Allowance for Credit Losses	0		0
Net Carrying Amount	235,729		232,157
Gross Unrecognized Gain	671		310
Gross Unrecognized Loss	(26,931)		(30,798)
Estimated Fair Value	209,469		201,669
Other
HTM investment securities:
Amortized  Cost	16,199		16,269
Allowance for Credit Losses	0		0
Net Carrying Amount	16,199		16,269
Gross Unrecognized Gain	0		0
Gross Unrecognized Loss	0		0
Estimated Fair Value	$ 16,199		$ 16,269

Investment Securities - Narrati

Investment Securities - Narrative (Details)	9 Months Ended
	Sep. 30, 2024 USD ($) investment_security	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) investment_security
Summary of Investment Holdings [Line Items]
Net carrying amount of securities transferred from available-for-sale to held-to-maturity	$ 0	$ 360,347,000
Accumulated other comprehensive loss, net of tax	(80,122,000)		$ (99,625,000)
Investments held-to-maturity, allowance for credit losses	104,000		126,000
Allowance for credit losses	0		$ 0
Available-for-sale securities, provision for credit losses	$ 0	0
Available-for-sale and held-to-maturity securities in nonaccrual status | investment_security	0		0
Available-for-sale and held-to-maturity securities purchased with deterioration in credit quality | investment_security	0		0
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent
Summary of Investment Holdings [Line Items]
Accumulated other comprehensive loss before tax amount	$ (19,600,000)		$ (36,000,000)
Accumulated other comprehensive loss, net of tax	(14,000,000)		(25,800,000)
AOCI, Accumulated Gain (Loss), Debt Securities Transferred To Held-To-Maturity, Available-For-Sale, Parent
Summary of Investment Holdings [Line Items]
Accumulated other comprehensive loss before tax amount	(92,100,000)		(102,900,000)
Accumulated other comprehensive loss, net of tax	(66,100,000)		(73,900,000)
Public deposits, Other Borrowings, and Other Purposes | Asset Pledged as Collateral
Summary of Investment Holdings [Line Items]
Investments at carrying value	2,720,000,000		2,800,000,000
Federal Reserve Discount Window | Asset Pledged as Collateral
Summary of Investment Holdings [Line Items]
Investments at carrying value	2,530,000,000		1,410,000,000
Mortgage-backed securities
Summary of Investment Holdings [Line Items]
Securities transferred from available-for-sale to held-to-maturity	0	410,700,000
Net carrying amount of securities transferred from available-for-sale to held-to-maturity		360,300,000
Debt securities, held-to-maturity, transfer, unrealized loss		$ (50,400,000)
Investments held-to-maturity, allowance for credit losses	$ 0		$ 0
U.S. Treasury, U.S. Government Agency, and U.S. Government-Sponsored Enterprise Securities
Summary of Investment Holdings [Line Items]
Percentage of total debt securities, available for sale	69%

Investment Securities - Investm

Investment Securities - Investment Category and Length of Time (Details) $ in Thousands	Sep. 30, 2024 USD ($) investment_security	Dec. 31, 2023 USD ($) investment_security
Less than 12 Months
Number | investment_security	4	5
Fair Value	$ 33,849	$ 103,611
Gross Unrealized Losses	$ (68)	$ (27)
12 Months or Longer
Number | investment_security	62	79
Fair Value	$ 425,227	$ 585,825
Gross Unrealized Losses	$ (23,983)	$ (36,375)
Total
Number | investment_security	66	84
Fair Value	$ 459,076	$ 689,436
Gross Unrealized Losses	$ (24,051)	$ (36,402)
U.S. Treasury
Less than 12 Months
Number | investment_security		4
Fair Value		$ 98,622
Gross Unrealized Losses		$ (24)
12 Months or Longer
Number | investment_security		0
Fair Value		$ 0
Gross Unrealized Losses		$ 0
Total
Number | investment_security		4
Fair Value		$ 98,622
Gross Unrealized Losses		$ (24)
Agency
Less than 12 Months
Number | investment_security	0	0
Fair Value	$ 0	$ 0
Gross Unrealized Losses	$ 0	$ 0
12 Months or Longer
Number | investment_security	4	4
Fair Value	$ 1,165	$ 1,868
Gross Unrealized Losses	$ (42)	$ (73)
Total
Number | investment_security	4	4
Fair Value	$ 1,165	$ 1,868
Gross Unrealized Losses	$ (42)	$ (73)
Corporate
Less than 12 Months
Number | investment_security	3	1
Fair Value	$ 26,523	$ 4,989
Gross Unrealized Losses	$ (50)	$ (3)
12 Months or Longer
Number | investment_security	34	47
Fair Value	$ 301,666	$ 431,353
Gross Unrealized Losses	$ (23,118)	$ (35,205)
Total
Number | investment_security	37	48
Fair Value	$ 328,189	$ 436,342
Gross Unrealized Losses	$ (23,168)	$ (35,208)
Collateralized mortgage obligations
Less than 12 Months
Number | investment_security	1	0
Fair Value	$ 7,326	$ 0
Gross Unrealized Losses	$ (18)	$ 0
12 Months or Longer
Number | investment_security	24	28
Fair Value	$ 122,396	$ 152,604
Gross Unrealized Losses	$ (823)	$ (1,097)
Total
Number | investment_security	25	28
Fair Value	$ 129,722	$ 152,604
Gross Unrealized Losses	$ (841)	$ (1,097)

Investment Securities - Schedul

Investment Securities - Schedule of Allowance for Credit Losses on Held-to-Maturity Debt Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
HTM investment securities:
Beginning balance			$ 126
Ending balance	$ 104		104
Municipal bonds
HTM investment securities:
Beginning balance	129	$ 113	126	$ 43
Provision for Credit Losses	(25)	15	(22)	85
Ending balance	$ 104	$ 128	$ 104	$ 128

Investment Securities - Realize

Investment Securities - Realized Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Amortized cost of AFS investment securities sold	$ 0	$ 0	$ 0	$ 304,182
Gross realized gains	0	0	0	986
Gross realized (losses)	0	0	0	(848)
Net realized gains on sales of AFS investment securities	$ 0	$ 0	$ 0	$ 138

Investment Securities - By Cont

Investment Securities - By Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Amortized Cost
Due in One Year or Less	$ 638,641
Due after One Year through Five Years	407,668
Due after Five Years through Ten Years	246,807
Due after Ten Years	43,060
Amortized  Cost	1,336,176	$ 1,176,040
Fair Value
Due in One Year or Less	640,800
Due after One Year through Five Years	408,581
Due after Five Years through Ten Years	224,486
Due after Ten Years	42,679
Total	1,316,546	1,140,071
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	41,607
Due after Five Years through Ten Years	49,367
Due after Ten Years	1,622,705
Total	1,713,679	1,729,667
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	39,966
Due after Five Years through Ten Years	45,828
Due after Ten Years	1,396,248
Total	1,482,042	1,485,506
Amortized Cost
Due in One Year or Less	638,641
Due after One Year through Five Years	449,275
Due after Five Years through Ten Years	296,174
Due after Ten Years	1,665,765
Total	3,049,855
Fair Value
Due in One Year or Less	640,800
Due after One Year through Five Years	448,547
Due after Five Years through Ten Years	270,314
Due after Ten Years	1,438,927
Total	2,798,588
U.S. Treasury
Amortized Cost
Due in One Year or Less	618,639
Due after One Year through Five Years	148,563
Due after Five Years through Ten Years	0
Due after Ten Years	0
Amortized  Cost	767,202	538,899
Fair Value
Due in One Year or Less	620,804
Due after One Year through Five Years	150,547
Due after Five Years through Ten Years	0
Due after Ten Years	0
Total	771,351	539,256
Agency
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	776
Due after Five Years through Ten Years	0
Due after Ten Years	431
Amortized  Cost	1,207	1,941
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	752
Due after Five Years through Ten Years	0
Due after Ten Years	413
Total	1,165	1,868
Corporate
Amortized Cost
Due in One Year or Less	20,002
Due after One Year through Five Years	203,372
Due after Five Years through Ten Years	204,937
Due after Ten Years	0
Amortized  Cost	428,311	481,499
Fair Value
Due in One Year or Less	19,996
Due after One Year through Five Years	202,551
Due after Five Years through Ten Years	182,861
Due after Ten Years	0
Total	405,408	446,343
Collateralized mortgage obligations
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	54,957
Due after Five Years through Ten Years	41,870
Due after Ten Years	42,629
Amortized  Cost	139,456	153,701
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	54,731
Due after Five Years through Ten Years	41,625
Due after Ten Years	42,266
Total	138,622	152,604
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	57
Due after Five Years through Ten Years	0
Due after Ten Years	316,493
Total	316,550	334,997
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	57
Due after Five Years through Ten Years	0
Due after Ten Years	315,430
Total	315,487	326,992
Municipal bonds
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	38,612
Due after Five Years through Ten Years	43,308
Due after Ten Years	1,063,281
Total	1,145,201	1,146,244
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	36,884
Due after Five Years through Ten Years	39,551
Due after Ten Years	864,452
Total	940,887	940,576
Mortgage-backed securities
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	2,938
Due after Five Years through Ten Years	6,059
Due after Ten Years	226,732
Total	235,729	232,157
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	3,025
Due after Five Years through Ten Years	6,277
Due after Ten Years	200,167
Total	209,469	$ 201,669
Other
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	0
Due after Five Years through Ten Years	0
Due after Ten Years	16,199
Total	16,199
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	0
Due after Five Years through Ten Years	0
Due after Ten Years	16,199
Total	$ 16,199

Loans Held for Investment - Com

Loans Held for Investment - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Loans Held for Investment
Loans held for investment	$ 12,035,097		$ 13,289,020
Loans held for investment before basis adjustment	12,051,250		13,318,571
Basis adjustment associated with fair value hedge	(16,153)		(29,551)
Loans held for investment	12,035,097		13,289,020
Allowance for credit losses for loans held for investment	(181,248)	$ (183,803)	(192,471)	$ (188,098)	$ (192,333)	$ (195,651)
Loans held for investment, net	11,853,849		13,096,549
Loans held for sale, at lower of cost or fair value	0		0
Net deferred origination costs (fees)	1,500		(74)
Unaccreted fair value net purchase discounts	35,900		43,300
Total unfunded loan commitments
Loans Held for Investment
Loans held for investment	1,377,190		1,703,470
Investor loans secured by real estate
Loans Held for Investment
Loans held for investment	8,068,489		8,576,026
Loans held for investment before basis adjustment	8,068,489		8,576,026
Investor loans secured by real estate | CRE non-owner-occupied
Loans Held for Investment
Loans held for investment	2,202,268		2,421,772
Loans held for investment before basis adjustment	2,202,268		2,421,772
Allowance for credit losses for loans held for investment	(29,274)	(29,738)	(31,030)	(31,583)	(31,545)	(33,692)
Investor loans secured by real estate | Multifamily
Loans Held for Investment
Loans held for investment	5,388,847		5,645,310
Loans held for investment before basis adjustment	5,388,847		5,645,310
Allowance for credit losses for loans held for investment	(65,965)	(57,298)	(56,312)	(55,221)	(55,648)	(56,334)
Investor loans secured by real estate | Construction and land
Loans Held for Investment
Loans held for investment	445,146		472,544
Loans held for investment before basis adjustment	445,146		472,544
Allowance for credit losses for loans held for investment	(10,984)	(10,804)	(9,314)	(8,506)	(7,707)	(7,114)
Investor loans secured by real estate | SBA secured by real estate
Loans Held for Investment
Loans held for investment	32,228		36,400
Loans held for investment before basis adjustment	32,228		36,400
Allowance for credit losses for loans held for investment	(2,599)	(2,142)	(2,182)	(2,199)	(2,331)	(2,592)
Business loans secured by real estate
Loans Held for Investment
Loans held for investment	2,347,222		2,546,589
Loans held for investment before basis adjustment	2,347,222		2,546,589
Business loans secured by real estate | SBA secured by real estate
Loans Held for Investment
Loans held for investment	43,943		50,741
Loans held for investment before basis adjustment	43,943		50,741
Allowance for credit losses for loans held for investment	(3,644)	(4,134)	(4,427)	(4,562)	(4,511)	(4,348)
Business loans secured by real estate | CRE owner-occupied
Loans Held for Investment
Loans held for investment	2,038,583		2,191,334
Loans held for investment before basis adjustment	2,038,583		2,191,334
Allowance for credit losses for loans held for investment	(27,959)	(28,531)	(28,787)	(29,086)	(28,515)	(32,340)
Business loans secured by real estate | Franchise real estate secured
Loans Held for Investment
Loans held for investment	264,696		304,514
Loans held for investment before basis adjustment	264,696		304,514
Allowance for credit losses for loans held for investment	(5,114)	(6,794)	(7,499)	(7,566)	(6,855)	(7,019)
Commercial loans
Loans Held for Investment
Loans held for investment	1,562,626		2,121,255
Loans held for investment before basis adjustment	1,562,626		2,121,255
Commercial loans | Commercial and industrial
Loans Held for Investment
Loans held for investment	1,316,517		1,790,608
Loans held for investment before basis adjustment	1,316,517		1,790,608
Allowance for credit losses for loans held for investment	(24,982)	(32,257)	(36,692)	(32,497)	(39,586)	(35,169)
Commercial loans | Franchise non-real estate secured
Loans Held for Investment
Loans held for investment	237,702		319,721
Loans held for investment before basis adjustment	237,702		319,721
Allowance for credit losses for loans held for investment	(9,898)	(11,130)	(15,131)	(15,779)	(14,642)	(16,029)
Commercial loans | SBA non-real estate secured
Loans Held for Investment
Loans held for investment	8,407		10,926
Loans held for investment before basis adjustment	8,407		10,926
Allowance for credit losses for loans held for investment	(348)	(482)	(458)	(472)	(399)	(441)
Retail loans
Loans Held for Investment
Loans held for investment	72,913		74,701
Loans held for investment before basis adjustment	72,913		74,701
Retail loans | Single family residential
Loans Held for Investment
Loans held for investment	71,552		72,752
Loans held for investment before basis adjustment	71,552		72,752
Allowance for credit losses for loans held for investment	(388)	(399)	(505)	(491)	(455)	(352)
Retail loans | Consumer
Loans Held for Investment
Loans held for investment	1,361		1,949
Loans held for investment before basis adjustment	1,361		1,949
Allowance for credit losses for loans held for investment	$ (93)	$ (94)	$ (134)	$ (136)	$ (139)	$ (221)

Loans Held for Investment - Nar

Loans Held for Investment - Narrative (Details)	1 Months Ended	3 Months Ended			9 Months Ended
	Dec. 31, 2016 USD ($)	Sep. 30, 2024 USD ($) loan	Sep. 30, 2023 bankingRelationship	Sep. 30, 2023 loan	Sep. 30, 2024 USD ($) bankingRelationship area grade	Dec. 31, 2023 USD ($)
Loans Held for Investment
Servicing rights retained from guaranteed portion of SBA loans sold		$ 1,100,000			$ 1,100,000	$ 1,600,000
Accrued expenses and other liabilities		212,459,000			212,459,000	216,596,000
Unpaid principal balance for loans and participations serviced for others		325,000,000			325,000,000	373,800,000
Secured loans limit to one borrower		835,500,000			835,500,000
Unsecured loans limit to one borrower		501,300,000			501,300,000
Aggregate outstanding balance of loans to one borrower of secured credit		169,600,000			$ 169,600,000
Number of areas where the entity's credit quality is maintained and credit risk managed | area					2
Number of pass scale grades | grade					6
Individually evaluated loans with allowance		39,100,000			$ 39,100,000
ACL attributable to individually evaluated loans		752,000			752,000
Individually evaluated loans without allowance						24,800,000
Loans held for investment		12,035,097,000			12,035,097,000	13,289,020,000
Total nonaccrual loans		39,084,000			39,084,000	24,817,000
Loans 90 days or more past due and still accruing		0			0	0
Consumer mortgage loans collateralized by residential real estate, foreclosure proceedings in process		0			0	0
Loans modified to borrowers experiencing financial difficulty		$ 16,100,000			16,100,000	12,600,000
Number of loan modifications | loan		0
Investor loans secured by real estate
Loans Held for Investment
Loans held for investment		$ 8,068,489,000			8,068,489,000	8,576,026,000
Total nonaccrual loans		20,767,000			20,767,000	1,617,000
Commercial loans
Loans Held for Investment
Loans held for investment		1,562,626,000			1,562,626,000	2,121,255,000
Total nonaccrual loans		13,743,000			13,743,000	14,534,000
Financial Asset Acquired with Credit Deterioration
Loans Held for Investment
Loans held for investment		296,100,000			296,100,000	359,300,000
Collateral Underlying Value
Loans Held for Investment
Individually evaluated loans with allowance		28,100,000			28,100,000
Individually evaluated loans without allowance						12,200,000
Discounted Cash Flow Approach
Loans Held for Investment
Individually evaluated loans with allowance		10,900,000			10,900,000
Individually evaluated loans without allowance						12,600,000
Multifamily Loan Securitization
Loans Held for Investment
Unpaid principal balance for loans and participations serviced for others		42,300,000			42,300,000	48,000,000
Multifamily Loan Securitization | Variable Interest Entity, Not Primary Beneficiary
Loans Held for Investment
Accrued expenses and other liabilities		$ 345,000			$ 345,000	345,000
Multifamily Loan Securitization | Opus Bank
Loans Held for Investment
Proceeds from sale of loans receivable	$ 509,000,000
Multifamily Loan Securitization, Liability | Variable Interest Entity, Not Primary Beneficiary
Loans Held for Investment
Maximum loss, percentage of loans		10%			10%
Accrued expenses and other liabilities		$ 345,000			$ 345,000	345,000
SBA
Loans Held for Investment
Unpaid principal balance for loans and participations serviced for others		221,000,000			221,000,000	258,100,000
Commercial and industrial | Commercial loans
Loans Held for Investment
Loans held for investment		1,316,517,000			1,316,517,000	1,790,608,000
Total nonaccrual loans		13,212,000			$ 13,212,000	13,976,000
Number of loan modifications			1	2
CRE non-owner-occupied | Investor loans secured by real estate
Loans Held for Investment
Change in individually evaluated loans, number of banking relationships | bankingRelationship					1
Financing receivable, individually evaluated for impairment, increase					$ 18,000,000
Loans held for investment		2,202,268,000			2,202,268,000	2,421,772,000
Total nonaccrual loans		19,042,000			19,042,000	$ 412,000
Increase in financing receivable nonaccrual		$ 18,000,000			$ 18,000,000

Loans Held for Investment - Sch

Loans Held for Investment - Schedule of Investments by Origination Year and Internal Risk Grading System (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	$ 170,441		$ 170,441		$ 397,723
Fiscal year before current fiscal year	349,387		349,387		2,905,140
Two years before current fiscal year	2,696,868		2,696,868		3,742,197
Three years before current fiscal year	3,482,977		3,482,977		1,239,280
Four years before current fiscal year	1,155,508		1,155,508		1,546,480
Prior	3,467,311		3,467,311		2,395,055
Revolving	724,474		724,474		1,066,289
Revolving Converted to Term During the Period	4,284		4,284		26,407
Loans held for investment before basis adjustment	12,051,250		12,051,250		13,318,571
Current fiscal year charge off			5		132
One year before current fiscal year charge off			560		3,053
Two year before current fiscal year charge off			3,564		597
Three year before current fiscal year charge off			793		196
Four year before current fiscal year charge off			12,732		1,944
Prior year before current fiscal year charge off			2,869		6,534
Revolving charge off			1,975		6,390
Revolving Converted to Term During the Period charge off			0		503
Total	2,439	$ 7,561	22,498	$ 15,211	19,349
Basis adjustment associated with fair value hedge	(16,153)		(16,153)		(29,551)
CRE owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,200
Investor loans secured by real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	100,366		100,366		310,500
Fiscal year before current fiscal year	270,097		270,097		1,986,752
Two years before current fiscal year	1,913,459		1,913,459		2,655,460
Three years before current fiscal year	2,532,224		2,532,224		920,238
Four years before current fiscal year	872,318		872,318		1,145,258
Prior	2,380,025		2,380,025		1,557,818
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	8,068,489		8,068,489		8,576,026
Current fiscal year charge off			0		0
One year before current fiscal year charge off			0		0
Two year before current fiscal year charge off			0		217
Three year before current fiscal year charge off			29		0
Four year before current fiscal year charge off			11,539		1,582
Prior year before current fiscal year charge off			1,333		3,653
Revolving charge off			0		0
Revolving Converted to Term During the Period charge off			0		0
Total			12,901		5,452
Investor loans secured by real estate | CRE non-owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	2,202,268		2,202,268		2,421,772
Total	0	0	5,123	2,657
Investor loans secured by real estate | CRE non-owner-occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	50,743		50,743		71,452
Fiscal year before current fiscal year	31,134		31,134		482,045
Two years before current fiscal year	449,405		449,405		549,828
Three years before current fiscal year	503,642		503,642		192,399
Four years before current fiscal year	164,952		164,952		315,139
Prior	963,283		963,283		795,856
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	2,163,159		2,163,159		2,406,719
Investor loans secured by real estate | CRE non-owner-occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		3,811
Two years before current fiscal year	0		0		2,530
Three years before current fiscal year	0		0		0
Four years before current fiscal year	0		0		0
Prior	2,471		2,471		625
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	2,471		2,471		6,966
Investor loans secured by real estate | CRE non-owner-occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	16,089		16,089		0
Fiscal year before current fiscal year	0		0		412
Two years before current fiscal year	11,549		11,549		0
Three years before current fiscal year	0		0		0
Four years before current fiscal year	5,784		5,784		0
Prior	3,216		3,216		7,675
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	36,638		36,638		8,087
Investor loans secured by real estate | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	5,388,847		5,388,847		5,645,310
Total	0	0	7,372	290
Investor loans secured by real estate | Multifamily | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	14,921		14,921		179,055
Fiscal year before current fiscal year	171,585		171,585		1,184,329
Two years before current fiscal year	1,163,753		1,163,753		2,008,126
Three years before current fiscal year	1,954,025		1,954,025		725,123
Four years before current fiscal year	679,920		679,920		822,411
Prior	1,369,933		1,369,933		714,638
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	5,354,137		5,354,137		5,633,682
Investor loans secured by real estate | Multifamily | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		0
Two years before current fiscal year	0		0		0
Three years before current fiscal year	3,098		3,098		0
Four years before current fiscal year	18,949		18,949		0
Prior	12,663		12,663		11,628
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	34,710		34,710		11,628
Investor loans secured by real estate | Construction and land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	445,146		445,146		472,544
Total	0	0	0	0
Investor loans secured by real estate | Construction and land | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	18,613		18,613		59,993
Fiscal year before current fiscal year	67,378		67,378		309,677
Two years before current fiscal year	282,353		282,353		94,845
Three years before current fiscal year	71,328		71,328		2,223
Four years before current fiscal year	2,219		2,219		2,368
Prior	3,255		3,255		3,438
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	445,146		445,146		472,544
Investor loans secured by real estate | SBA secured by real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	32,228		32,228		36,400
Total	0	108	406	108
Investor loans secured by real estate | SBA secured by real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		6,478
Two years before current fiscal year	6,399		6,399		0
Three years before current fiscal year	0		0		493
Four years before current fiscal year	494		494		4,804
Prior	18,008		18,008		16,496
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	24,901		24,901		28,271
Investor loans secured by real estate | SBA secured by real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
Fiscal year before current fiscal year	0		0
Two years before current fiscal year	0		0
Three years before current fiscal year	0		0
Four years before current fiscal year	0		0
Prior	1,125		1,125
Revolving	0		0
Revolving Converted to Term During the Period	0		0
Loans held for investment before basis adjustment	1,125		1,125
Investor loans secured by real estate | SBA secured by real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		0
Two years before current fiscal year	0		0		131
Three years before current fiscal year	131		131		0
Four years before current fiscal year	0		0		536
Prior	6,071		6,071		7,462
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	6,202		6,202		8,129
Business loans secured by real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	31,500		31,500		31,465
Fiscal year before current fiscal year	30,766		30,766		632,163
Two years before current fiscal year	577,793		577,793		797,090
Three years before current fiscal year	727,653		727,653		257,990
Four years before current fiscal year	239,225		239,225		243,137
Prior	739,367		739,367		583,825
Revolving	918		918		919
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	2,347,222		2,347,222		2,546,589
Current fiscal year charge off			0		0
One year before current fiscal year charge off			93		0
Two year before current fiscal year charge off			3,345		318
Three year before current fiscal year charge off			581		191
Four year before current fiscal year charge off			1,152		0
Prior year before current fiscal year charge off			645		1,861
Revolving charge off			0		0
Revolving Converted to Term During the Period charge off			0		0
Total			5,816		2,370
Business loans secured by real estate | SBA secured by real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	43,943		43,943		50,741
Total	0	0	0	0
Business loans secured by real estate | SBA secured by real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	243		243		113
Fiscal year before current fiscal year	110		110		9,334
Two years before current fiscal year	9,744		9,744		7,634
Three years before current fiscal year	7,052		7,052		1,979
Four years before current fiscal year	1,209		1,209		4,109
Prior	22,415		22,415		22,417
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	40,773		40,773		45,586
Business loans secured by real estate | SBA secured by real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year					0
Fiscal year before current fiscal year					536
Two years before current fiscal year					0
Three years before current fiscal year					0
Four years before current fiscal year					0
Prior					83
Revolving					0
Revolving Converted to Term During the Period					0
Loans held for investment before basis adjustment					619
Business loans secured by real estate | SBA secured by real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		0
Two years before current fiscal year	0		0		0
Three years before current fiscal year	0		0		0
Four years before current fiscal year	0		0		0
Prior	3,170		3,170		4,536
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	3,170		3,170		4,536
Business loans secured by real estate | CRE owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	2,038,583		2,038,583		2,191,334
Total	1,152	0	5,604	2,370
Business loans secured by real estate | CRE owner-occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	30,052		30,052		19,014
Fiscal year before current fiscal year	20,963		20,963		543,413
Two years before current fiscal year	525,968		525,968		660,967
Three years before current fiscal year	615,978		615,978		224,333
Four years before current fiscal year	214,189		214,189		211,283
Prior	579,769		579,769		458,975
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	1,986,919		1,986,919		2,117,985
Business loans secured by real estate | CRE owner-occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		16,535
Two years before current fiscal year	1,235		1,235		0
Three years before current fiscal year	0		0		476
Four years before current fiscal year	0		0		4,775
Prior	15,936		15,936		11,775
Revolving	918		918		919
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	18,089		18,089		34,480
Business loans secured by real estate | CRE owner-occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		15,539
Two years before current fiscal year	0		0		2,162
Three years before current fiscal year	0		0		5,505
Four years before current fiscal year	0		0		3,873
Prior	33,575		33,575		11,790
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	33,575		33,575		38,869
Business loans secured by real estate | Franchise real estate secured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	264,696		264,696		304,514
Total	0	0	212	0
Business loans secured by real estate | Franchise real estate secured | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,205		1,205		10,580
Fiscal year before current fiscal year	9,693		9,693		39,239
Two years before current fiscal year	40,846		40,846		124,424
Three years before current fiscal year	104,623		104,623		25,697
Four years before current fiscal year	23,827		23,827		15,731
Prior	81,432		81,432		72,342
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	261,626		261,626		288,013
Business loans secured by real estate | Franchise real estate secured | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		1,758
Fiscal year before current fiscal year	0		0		3,603
Two years before current fiscal year	0		0		1,903
Three years before current fiscal year	0		0		0
Four years before current fiscal year	0		0		795
Prior	1,560		1,560		1,615
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	1,560		1,560		9,674
Business loans secured by real estate | Franchise real estate secured | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		3,964
Two years before current fiscal year	0		0		0
Three years before current fiscal year	0		0		0
Four years before current fiscal year	0		0		2,571
Prior	1,510		1,510		292
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	1,510		1,510		6,827
Commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	38,518		38,518		55,738
Fiscal year before current fiscal year	48,513		48,513		286,225
Two years before current fiscal year	205,616		205,616		289,644
Three years before current fiscal year	223,098		223,098		60,876
Four years before current fiscal year	43,803		43,803		158,080
Prior	307,051		307,051		208,520
Revolving	691,743		691,743		1,035,765
Revolving Converted to Term During the Period	4,284		4,284		26,407
Loans held for investment before basis adjustment	1,562,626		1,562,626		2,121,255
Current fiscal year charge off			0		132
One year before current fiscal year charge off			466		3,053
Two year before current fiscal year charge off			212		62
Three year before current fiscal year charge off			182		5
Four year before current fiscal year charge off			41		362
Prior year before current fiscal year charge off			22		37
Revolving charge off			1,975		6,387
Revolving Converted to Term During the Period charge off			0		503
Total			2,898		10,541
Commercial loans | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	1,316,517		1,316,517		1,790,608
Total	1,239	7,386	2,792	8,734
Commercial loans | Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	37,384		37,384		46,765
Fiscal year before current fiscal year	39,403		39,403		172,987
Two years before current fiscal year	128,947		128,947		160,275
Three years before current fiscal year	136,119		136,119		40,988
Four years before current fiscal year	33,882		33,882		110,526
Prior	224,276		224,276		146,310
Revolving	671,901		671,901		966,733
Revolving Converted to Term During the Period	3,942		3,942		6,518
Loans held for investment before basis adjustment	1,275,854		1,275,854		1,651,102
Commercial loans | Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	816		816		239
Fiscal year before current fiscal year	628		628		23,242
Two years before current fiscal year	0		0		12,270
Three years before current fiscal year	45		45		367
Four years before current fiscal year	177		177		16
Prior	7		7		2,139
Revolving	10,378		10,378		42,570
Revolving Converted to Term During the Period	342		342		407
Loans held for investment before basis adjustment	12,393		12,393		81,250
Commercial loans | Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		425
Fiscal year before current fiscal year	1,139		1,139		8,052
Two years before current fiscal year	9,235		9,235		2,689
Three years before current fiscal year	4,335		4,335		588
Four years before current fiscal year	340		340		173
Prior	872		872		1,138
Revolving	9,464		9,464		26,462
Revolving Converted to Term During the Period	0		0		14,187
Loans held for investment before basis adjustment	25,385		25,385		53,714
Commercial loans | Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
Fiscal year before current fiscal year	0		0
Two years before current fiscal year	2,885		2,885
Three years before current fiscal year	0		0
Four years before current fiscal year	0		0
Prior	0		0
Revolving	0		0
Revolving Converted to Term During the Period	0		0
Loans held for investment before basis adjustment	2,885		2,885
Commercial loans | Commercial and industrial | Doubtful and loss
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year					0
Fiscal year before current fiscal year					0
Two years before current fiscal year					0
Three years before current fiscal year					0
Four years before current fiscal year					0
Prior					0
Revolving					0
Revolving Converted to Term During the Period					4,542
Loans held for investment before basis adjustment					4,542
Commercial loans | Franchise non-real estate secured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	237,702		237,702		319,721
Total	0	0	100	0
Commercial loans | Franchise non-real estate secured | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	11		11		6,801
Fiscal year before current fiscal year	6,982		6,982		74,441
Two years before current fiscal year	58,598		58,598		112,112
Three years before current fiscal year	82,272		82,272		16,355
Four years before current fiscal year	9,274		9,274		34,770
Prior	69,601		69,601		53,957
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		753
Loans held for investment before basis adjustment	226,738		226,738		299,189
Commercial loans | Franchise non-real estate secured | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		433
Fiscal year before current fiscal year	0		0		845
Two years before current fiscal year	0		0		1,633
Three years before current fiscal year	0		0		0
Four years before current fiscal year	0		0		627
Prior	557		557		692
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	557		557		4,230
Commercial loans | Franchise non-real estate secured | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		1,646
Two years before current fiscal year	1,190		1,190		322
Three years before current fiscal year	0		0		2,324
Four years before current fiscal year	0		0		10,451
Prior	9,217		9,217		1,559
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	10,407		10,407		16,302
Commercial loans | SBA non-real estate secured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	8,407		8,407		10,926
Total	0	67	6	67
Commercial loans | SBA non-real estate secured | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	307		307		1,075
Fiscal year before current fiscal year	361		361		4,485
Two years before current fiscal year	4,261		4,261		343
Three years before current fiscal year	327		327		113
Four years before current fiscal year	0		0		1,464
Prior	2,439		2,439		2,490
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	7,695		7,695		9,970
Commercial loans | SBA non-real estate secured | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal year before current fiscal year	0		0		527
Two years before current fiscal year	500		500		0
Three years before current fiscal year	0		0		141
Four years before current fiscal year	130		130		53
Prior	82		82		235
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	712		712		956
Retail loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	57		57		20
Fiscal year before current fiscal year	11		11		0
Two years before current fiscal year	0		0		3
Three years before current fiscal year	2		2		176
Four years before current fiscal year	162		162		5
Prior	40,868		40,868		44,892
Revolving	31,813		31,813		29,605
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	72,913		72,913		74,701
Current fiscal year charge off			5		0
One year before current fiscal year charge off			1		0
Two year before current fiscal year charge off			7		0
Three year before current fiscal year charge off			1		0
Four year before current fiscal year charge off			0		0
Prior year before current fiscal year charge off			869		983
Revolving charge off			0		3
Revolving Converted to Term During the Period charge off			0		0
Total			883		986
Retail loans | Single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	71,552		71,552		72,752
Total	0	0	0	90
Retail loans | Single family residential | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		20
Fiscal year before current fiscal year	11		11		0
Two years before current fiscal year	0		0		0
Three years before current fiscal year	0		0		167
Four years before current fiscal year	160		160		0
Prior	40,477		40,477		44,104
Revolving	30,904		30,904		28,461
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	71,552		71,552		72,752
Retail loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment before basis adjustment	1,361		1,361		1,949
Total	48	$ 0	883	$ 895
Retail loans | Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	57		57		0
Fiscal year before current fiscal year	0		0		0
Two years before current fiscal year	0		0		3
Three years before current fiscal year	2		2		9
Four years before current fiscal year	2		2		5
Prior	391		391		788
Revolving	909		909		1,144
Revolving Converted to Term During the Period	0		0		0
Loans held for investment before basis adjustment	$ 1,361		$ 1,361		$ 1,949

Loans Held for Investment - Del

Loans Held for Investment - Delinquencies (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	$ 12,051,250	$ 13,318,571
Basis adjustment associated with fair value hedge	(16,153)	(29,551)
Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	12,041,384	13,308,517
30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,008	2,484
60-89
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	715	1,294
90+
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	7,143	6,276
Investor loans secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	8,068,489	8,576,026
Investor loans secured by real estate | CRE non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,202,268	2,421,772
Investor loans secured by real estate | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	5,388,847	5,645,310
Investor loans secured by real estate | Construction and land
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	445,146	472,544
Investor loans secured by real estate | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	32,228	36,400
Investor loans secured by real estate | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	8,066,804	8,575,194
Investor loans secured by real estate | Current | CRE non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,201,885	2,421,360
Investor loans secured by real estate | Current | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	5,388,847	5,645,310
Investor loans secured by real estate | Current | Construction and land
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	445,146	472,544
Investor loans secured by real estate | Current | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	30,926	35,980
Investor loans secured by real estate | 30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,115	0
Investor loans secured by real estate | 30-59 | CRE non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 30-59 | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 30-59 | Construction and land
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 30-59 | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,115	0
Investor loans secured by real estate | 60-89
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 60-89 | CRE non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 60-89 | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 60-89 | Construction and land
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 60-89 | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 90+
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	570	832
Investor loans secured by real estate | 90+ | CRE non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	383	412
Investor loans secured by real estate | 90+ | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 90+ | Construction and land
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Investor loans secured by real estate | 90+ | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	187	420
Business loans secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,347,222	2,546,589
Business loans secured by real estate | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	43,943	50,741
Business loans secured by real estate | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,038,583	2,191,334
Business loans secured by real estate | Franchise real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	264,696	304,514
Business loans secured by real estate | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,342,648	2,541,505
Business loans secured by real estate | Current | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	43,943	50,604
Business loans secured by real estate | Current | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,034,009	2,186,679
Business loans secured by real estate | Current | Franchise real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	264,696	304,222
Business loans secured by real estate | 30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	429
Business loans secured by real estate | 30-59 | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	137
Business loans secured by real estate | 30-59 | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Business loans secured by real estate | 30-59 | Franchise real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	292
Business loans secured by real estate | 60-89
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Business loans secured by real estate | 60-89 | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Business loans secured by real estate | 60-89 | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Business loans secured by real estate | 60-89 | Franchise real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Business loans secured by real estate | 90+
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	4,574	4,655
Business loans secured by real estate | 90+ | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Business loans secured by real estate | 90+ | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	4,574	4,655
Business loans secured by real estate | 90+ | Franchise real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Commercial loans
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,562,626	2,121,255
Commercial loans | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,316,517	1,790,608
Commercial loans | Franchise non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	237,702	319,721
Commercial loans | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	8,407	10,926
Commercial loans | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,559,019	2,117,136
Commercial loans | Current | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,313,441	1,788,855
Commercial loans | Current | Franchise non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	237,702	318,162
Commercial loans | Current | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	7,876	10,119
Commercial loans | 30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	893	2,036
Commercial loans | 30-59 | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	893	228
Commercial loans | 30-59 | Franchise non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	1,559
Commercial loans | 30-59 | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	249
Commercial loans | 60-89
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	715	1,294
Commercial loans | 60-89 | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	715	1,294
Commercial loans | 60-89 | Franchise non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Commercial loans | 60-89 | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Commercial loans | 90+
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,999	789
Commercial loans | 90+ | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,468	231
Commercial loans | 90+ | Franchise non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Commercial loans | 90+ | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	531	558
Retail loans
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	72,913	74,701
Retail loans | Single family residential
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	71,552	72,752
Retail loans | Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,361	1,949
Retail loans | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	72,913	74,682
Retail loans | Current | Single family residential
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	71,552	72,733
Retail loans | Current | Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,361	1,949
Retail loans | 30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	19
Retail loans | 30-59 | Single family residential
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	19
Retail loans | 30-59 | Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Retail loans | 60-89
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Retail loans | 60-89 | Single family residential
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Retail loans | 60-89 | Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Retail loans | 90+
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Retail loans | 90+ | Single family residential
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Retail loans | 90+ | Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	$ 0	$ 0

Loans Held for Investment - Non

Loans Held for Investment - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	$ 28,146	$ 12,222
Collateral dependent loans, ACL	752	0
Non-collateral dependent loans, balance	10,938	12,595
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	39,084	24,817
Nonaccrual Loans with No ACL	37,776	24,817
Investor loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	20,767	1,617
Collateral dependent loans, ACL	559	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	20,767	1,617
Nonaccrual Loans with No ACL	19,652	1,617
Investor loans secured by real estate | CRE non-owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	19,042	412
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	19,042	412
Nonaccrual Loans with No ACL	19,042	412
Investor loans secured by real estate | SBA secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	1,725	1,205
Collateral dependent loans, ACL	559	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	1,725	1,205
Nonaccrual Loans with No ACL	610	1,205
Business loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	4,574	8,666
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	4,574	8,666
Nonaccrual Loans with No ACL	4,574	8,666
Business loans secured by real estate | CRE owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	4,574	8,666
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	4,574	8,666
Nonaccrual Loans with No ACL	4,574	8,666
Commercial loans
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	2,805	1,939
Collateral dependent loans, ACL	193	0
Non-collateral dependent loans, balance	10,938	12,595
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	13,743	14,534
Nonaccrual Loans with No ACL	13,550	14,534
Commercial loans | Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	2,274	1,381
Collateral dependent loans, ACL	193	0
Non-collateral dependent loans, balance	10,938	12,595
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	13,212	13,976
Nonaccrual Loans with No ACL	13,019	13,976
Commercial loans | SBA non-real estate secured
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	531	558
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	531	558
Nonaccrual Loans with No ACL	$ 531	$ 558

Loans Held for Investment - Fin

Loans Held for Investment - Financial Effect of Modifications (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) loan	Sep. 30, 2023 USD ($)
Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount			$ 13,021
Commercial loans | Other Than Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	$ 13,021		13,021
Commercial loans | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount			13,021
Commercial loans | Commercial and industrial | Other Than Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	$ 13,021		$ 13,021
Financing receivable, excluding accrued interest, modified in period, to total financing receivables, percentage	0.82%		0.82%
Financing receivable, modified, period of interest payable	1 year		1 year
Investor loans secured by real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		$ 16,089
Investor loans secured by real estate | Combination of Other-than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		16,089
Investor loans secured by real estate | CRE non-owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		16,089
Investor loans secured by real estate | CRE non-owner-occupied | Combination of Other-than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		$ 16,089
Financing receivable, excluding accrued interest, modified in period, to total financing receivables, percentage		0.73%
Financing receivable, modified, loans with varying maturities | loan		3
Extended term		6 months
Financing receivable, modified, period of interest payable		2 years

Loans Held for Investment - Per

Loans Held for Investment - Performance of the MLTB (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Investor loans secured by real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	$ 16,089
Investor loans secured by real estate | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	16,089
Investor loans secured by real estate | 30-59
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	0
Investor loans secured by real estate | 60-89
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	0
Investor loans secured by real estate | 90+
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	0
Investor loans secured by real estate | CRE non-owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	16,089
Investor loans secured by real estate | CRE non-owner-occupied | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	16,089
Investor loans secured by real estate | CRE non-owner-occupied | 30-59
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	0
Investor loans secured by real estate | CRE non-owner-occupied | 60-89
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	0
Investor loans secured by real estate | CRE non-owner-occupied | 90+
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	$ 0
Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		$ 13,021
Commercial loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		13,021
Commercial loans | 30-59
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		0
Commercial loans | 60-89
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		0
Commercial loans | 90+
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		0
Commercial loans | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		13,021
Commercial loans | Commercial and industrial | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		13,021
Commercial loans | Commercial and industrial | 30-59
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		0
Commercial loans | Commercial and industrial | 60-89
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		0
Commercial loans | Commercial and industrial | 90+
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount		$ 0

Loans Held for Investment - Col

Loans Held for Investment - Collateral Dependent Loans by Collateral Type (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	$ 39,100
Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	28,146	$ 12,222
Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	16,089	4,011
Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,005	412
Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,801	4,886
Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,725	1,205
Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,948	0
Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	2,578	1,708
Investor loans secured by real estate | Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	20,767	1,617
Investor loans secured by real estate | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	16,089	0
Investor loans secured by real estate | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,005	412
Investor loans secured by real estate | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,725	1,205
Investor loans secured by real estate | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,948	0
Investor loans secured by real estate | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | CRE non-owner-occupied | Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	19,042	412
Investor loans secured by real estate | CRE non-owner-occupied | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	16,089	0
Investor loans secured by real estate | CRE non-owner-occupied | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,005	412
Investor loans secured by real estate | CRE non-owner-occupied | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | CRE non-owner-occupied | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | CRE non-owner-occupied | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,948	0
Investor loans secured by real estate | CRE non-owner-occupied | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | SBA secured by real estate | Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,725	1,205
Investor loans secured by real estate | SBA secured by real estate | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | SBA secured by real estate | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | SBA secured by real estate | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | SBA secured by real estate | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,725	1,205
Investor loans secured by real estate | SBA secured by real estate | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | SBA secured by real estate | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,574	8,666
Business loans secured by real estate | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	4,011
Business loans secured by real estate | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,574	4,655
Business loans secured by real estate | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | CRE owner-occupied | Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,574	8,666
Business loans secured by real estate | CRE owner-occupied | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	4,011
Business loans secured by real estate | CRE owner-occupied | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | CRE owner-occupied | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,574	4,655
Business loans secured by real estate | CRE owner-occupied | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | CRE owner-occupied | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | CRE owner-occupied | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	2,805	1,939
Commercial loans | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	227	231
Commercial loans | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	2,578	1,708
Commercial loans | Commercial and industrial | Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	2,274	1,381
Commercial loans | Commercial and industrial | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Commercial and industrial | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Commercial and industrial | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	227	231
Commercial loans | Commercial and industrial | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Commercial and industrial | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Commercial and industrial | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	2,047	1,150
Commercial loans | SBA non-real estate secured | Collateral Pledged
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	531	558
Commercial loans | SBA non-real estate secured | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | SBA non-real estate secured | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | SBA non-real estate secured | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | SBA non-real estate secured | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | SBA non-real estate secured | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | SBA non-real estate secured | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	$ 531	$ 558

Allowance for Credit Losses - A

Allowance for Credit Losses - Allocation of Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	$ 183,803	$ 192,333	$ 192,471	$ 195,651	$ 195,651
Charge-offs	(2,439)	(7,561)	(22,498)	(15,211)	(19,349)
Recoveries	133	809	3,480	1,510
Provision for Credit Losses	(249)	2,517	7,795	6,148
Ending ACL Balance	181,248	188,098	181,248	188,098	192,471
CRE owner-occupied
Allocation of allowance as well as the activity in allowance
Charge-offs	(1,200)
Investor loans secured by real estate
Allocation of allowance as well as the activity in allowance
Charge-offs			(12,901)		(5,452)
Investor loans secured by real estate | CRE non-owner-occupied
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	29,738	31,545	31,030	33,692	33,692
Charge-offs	0	0	(5,123)	(2,657)
Recoveries	0	51	1,500	66
Provision for Credit Losses	(464)	(13)	1,867	482
Ending ACL Balance	29,274	31,583	29,274	31,583	31,030
Investor loans secured by real estate | Multifamily
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	57,298	55,648	56,312	56,334	56,334
Charge-offs	0	0	(7,372)	(290)
Recoveries	0	0	5	1
Provision for Credit Losses	8,667	(427)	17,020	(824)
Ending ACL Balance	65,965	55,221	65,965	55,221	56,312
Investor loans secured by real estate | Construction and land
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	10,804	7,707	9,314	7,114	7,114
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for Credit Losses	180	799	1,670	1,392
Ending ACL Balance	10,984	8,506	10,984	8,506	9,314
Investor loans secured by real estate | SBA secured by real estate
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	2,142	2,331	2,182	2,592	2,592
Charge-offs	0	(108)	(406)	(108)
Recoveries	0	0	86	0
Provision for Credit Losses	457	(24)	737	(285)
Ending ACL Balance	2,599	2,199	2,599	2,199	2,182
Business loans secured by real estate
Allocation of allowance as well as the activity in allowance
Charge-offs			(5,816)		(2,370)
Business loans secured by real estate | SBA secured by real estate
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	4,134	4,511	4,427	4,348	4,348
Charge-offs	0	0	0	0
Recoveries	0	128	2	208
Provision for Credit Losses	(490)	(77)	(785)	6
Ending ACL Balance	3,644	4,562	3,644	4,562	4,427
Business loans secured by real estate | CRE owner-occupied
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	28,531	28,515	28,787	32,340	32,340
Charge-offs	(1,152)	0	(5,604)	(2,370)
Recoveries	0	12	184	36
Provision for Credit Losses	580	559	4,592	(920)
Ending ACL Balance	27,959	29,086	27,959	29,086	28,787
Business loans secured by real estate | Franchise real estate secured
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	6,794	6,855	7,499	7,019	7,019
Charge-offs	0	0	(212)	0
Recoveries	0	0	0	0
Provision for Credit Losses	(1,680)	711	(2,173)	547
Ending ACL Balance	5,114	7,566	5,114	7,566	7,499
Commercial loans
Allocation of allowance as well as the activity in allowance
Charge-offs			(2,898)		(10,541)
Commercial loans | Commercial and industrial
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	32,257	39,586	36,692	35,169	35,169
Charge-offs	(1,239)	(7,386)	(2,792)	(8,734)
Recoveries	2	565	189	945
Provision for Credit Losses	(6,038)	(268)	(9,107)	5,117
Ending ACL Balance	24,982	32,497	24,982	32,497	36,692
Commercial loans | Franchise non-real estate secured
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	11,130	14,642	15,131	16,029	16,029
Charge-offs	0	0	(100)	0
Recoveries	125	50	1,500	150
Provision for Credit Losses	(1,357)	1,087	(6,633)	(400)
Ending ACL Balance	9,898	15,779	9,898	15,779	15,131
Commercial loans | SBA non-real estate secured
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	482	399	458	441	441
Charge-offs	0	(67)	(6)	(67)
Recoveries	5	3	10	68
Provision for Credit Losses	(139)	137	(114)	30
Ending ACL Balance	348	472	348	472	458
Retail loans
Allocation of allowance as well as the activity in allowance
Charge-offs			(883)		(986)
Retail loans | Single family residential
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	399	455	505	352	352
Charge-offs	0	0	0	(90)
Recoveries	0	0	3	1
Provision for Credit Losses	(11)	36	(120)	228
Ending ACL Balance	388	491	388	491	505
Retail loans | Consumer
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	94	139	134	221	221
Charge-offs	(48)	0	(883)	(895)
Recoveries	1	0	1	35
Provision for Credit Losses	46	(3)	841	775
Ending ACL Balance	$ 93	$ 136	$ 93	$ 136	$ 134

Allowance for Credit Losses - N

Allowance for Credit Losses - Narrative (Details) $ in Thousands	3 Months Ended						9 Months Ended		12 Months Ended
	Sep. 30, 2024 USD ($) loan	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($) loan	Sep. 30, 2023 USD ($) bankingRelationship	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($) bankingRelationship	Dec. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Decrease in ACL during period	$ (2,600)			$ (4,200)			$ (11,200)	$ (7,600)
Net charge-offs	2,300			6,800			19,000	13,700
Provision for credit losses	(249)			2,517			7,795	6,148
Charge-offs	$ 2,439			7,561			22,498	15,211	$ 19,349
Number of loan modifications | loan	0
Allowance for off-balance sheet commitments	$ 17,094	$ 16,334		25,841	$ 25,841	$ 25,841	17,094	25,841	19,264	$ 24,455	$ 23,641
Provision for credit losses on off-balance sheet commitments	760			1,386			(2,170)	2,200
Commercial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-offs							2,898		10,541
Investor loans secured by real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-offs							12,901		5,452
Business loans secured by real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-offs							5,816		$ 2,370
CRE owner-occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-offs	$ 1,200
Number of loans sold | loan	1
CRE owner-occupied | Business loans secured by real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for credit losses	$ 580			559			4,592	(920)
Charge-offs	1,152			0			5,604	$ 2,370
Number of lending relationships with charge-offs | bankingRelationship								1
MultiFamily and CRE Nonowner occupied | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-offs		$ 11,500
CRE and Franchise Loans | Special Mention and Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-offs			$ 5,700
Commercial and industrial | Commercial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for credit losses	(6,038)			(268)			(9,107)	$ 5,117
Charge-offs	1,239			7,386			2,792	$ 8,734
Number of lending relationships with charge-offs | bankingRelationship						1		2
Number of loans with charge-offs | loan					2
Number of loan modifications					2	1
CRE non-owner-occupied | Investor loans secured by real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for credit losses	(464)			(13)			1,867	$ 482
Charge-offs	$ 0			$ 0			$ 5,123	$ 2,657
Number of lending relationships with charge-offs | bankingRelationship								1

Allowance for Credit Losses - O

Allowance for Credit Losses - Off-balance Sheet Commitments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning ACL balance	$ 16,334	$ 24,455	$ 19,264	$ 23,641
Provision for credit losses on off-balance sheet commitments	760	1,386	(2,170)	2,200
Ending ACL balance	$ 17,094	$ 25,841	$ 17,094	$ 25,841

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Dec. 31, 2023
Goodwill [Line Items]
Goodwill	$ 901,312,000		$ 901,312,000	$ 901,312,000
Goodwill adjustments during period	0	$ 0
Net intangible assets	34,924,000	$ 46,307,000	34,924,000	43,300,000
Estimated amortization expense for 2024				11,100,000
Estimated amortization expense for 2025				10,000,000
Estimated amortization expense for 2026				8,900,000
Estimated amortization expense for 2027				7,200,000
Estimated amortization expense for 2028				4,000,000
Core Deposits
Goodwill [Line Items]
Net intangible assets	33,100,000		$ 33,100,000	41,200,000
Core Deposits | Minimum
Goodwill [Line Items]
Weighted average useful life (in years)			6 years
Core Deposits | Maximum
Goodwill [Line Items]
Weighted average useful life (in years)			11 years
Customer Relationships
Goodwill [Line Items]
Net intangible assets	$ 1,800,000		$ 1,800,000	$ 2,100,000

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Finite-Lived Intangible Assets Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Gross amount of intangible assets:
Beginning balance	$ 145,212	$ 145,212	$ 145,212	$ 145,212
Additions due to acquisitions	0	0	0	0
Ending balance	145,212	145,212	145,212	145,212
Accumulated amortization:
Beginning balance	(107,526)	(95,850)	(101,927)	(89,624)
Amortization	(2,762)	(3,055)	(8,361)	(9,281)
Ending balance	(110,288)	(98,905)	(110,288)	(98,905)
Net intangible assets	$ 34,924	$ 46,307	$ 34,924	$ 46,307	$ 43,300

Subordinated Debentures - Narra

Subordinated Debentures - Narrative (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($) note	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Subordinated debentures	$ 272,320		$ 331,842
Repayments of subordinated debentures	$ 60,000	$ 0
Subordinated notes
Debt Instrument [Line Items]
Number of subordinated notes | note	2
Subordinated debentures	$ 272,320		$ 331,842
Weighted interest rate (as a percent)	6.58%		5.31%
Subordinated liabilities, period decrease	$ (59,500)
Repayments of subordinated debentures	$ 60,000

Subordinated Debentures - Summa

Subordinated Debentures - Summary (Details) - USD ($)	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Carrying Value	$ 272,320,000	$ 331,842,000
Subordinated notes
Debt Instrument [Line Items]
Face amount of debt instrument	275,000,000
Carrying Value	$ 272,320,000	331,842,000
Subordinated notes | Subordinated notes due 2024, 5.75% per annum
Debt Instrument [Line Items]
Fixed interest rate (as a percent)	5.75%
Current interest rate (as a percent)	0%
Face amount of debt instrument	$ 0
Carrying Value	$ 0	59,910,000
Subordinated notes | Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month term SOFR +2.762% thereafter
Debt Instrument [Line Items]
Fixed interest rate (as a percent)	4.875%
Variable rate (as a percent)	2.762%
Current interest rate (as a percent)	7.88%
Face amount of debt instrument	$ 125,000,000
Carrying Value	$ 123,832,000	123,641,000
Subordinated notes | Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month term SOFR +5.17% thereafter
Debt Instrument [Line Items]
Fixed interest rate (as a percent)	5.375%
Variable rate (as a percent)	5.17%
Current interest rate (as a percent)	5.375%
Face amount of debt instrument	$ 150,000,000
Carrying Value	$ 148,488,000	$ 148,291,000

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Basic
Net income	$ 35,979	$ 46,030	$ 124,909	$ 166,228
Less: dividends and undistributed earnings allocated to participating securities	(667)	(823)	(2,241)	(2,674)
Net income allocated to common stockholders	$ 35,312	$ 45,207	$ 122,668	$ 163,554
Weighted average common shares outstanding (in shares)	94,650,096	94,189,844	94,543,243	94,072,463
Basic earnings per common share (in dollars per share)	$ 0.37	$ 0.48	$ 1.30	$ 1.74
Diluted
Net income allocated to common stockholders	$ 35,312	$ 45,207	$ 122,668	$ 163,554
Weighted average common shares outstanding (in shares)	94,650,096	94,189,844	94,543,243	94,072,463
Dilutive effect of share-based compensation (in shares)	125,831	93,164	109,340	142,383
Weighted average diluted common shares (in shares)	94,775,927	94,283,008	94,652,583	94,214,846
Diluted earnings per common share (in dollars per share)	$ 0.37	$ 0.48	$ 1.30	$ 1.74
Weighted-average shares of anti-dilutive shares excluded from diluted EPS computation (in shares)	0	0	43,610	48,808

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Hierarchy Table on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financial assets
Investment securities available-for-sale, at fair value	$ 1,316,546	$ 1,140,071
U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	771,351	539,256
Agency
Financial assets
Investment securities available-for-sale, at fair value	1,165	1,868
Corporate
Financial assets
Investment securities available-for-sale, at fair value	405,408	446,343
Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	138,622	152,604
Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	737	759
Total derivative assets	3	1
Financial liabilities
Total derivative liabilities	2	10
Level 2
Financial assets
Investment securities available-for-sale, at fair value	1,316,546	1,140,071
Equity securities	0	0
Total derivative assets	4,199	5,643
Financial liabilities
Total derivative liabilities	8,380	10,705
Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	0	0
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring
Financial assets
Investment securities available-for-sale, at fair value	1,316,546	1,140,071
Equity securities	737	759
Total derivative assets	4,202	5,644
Financial liabilities
Total derivative liabilities	8,382	10,715
Recurring | Foreign exchange contracts
Financial assets
Total derivative assets	3	1
Financial liabilities
Total derivative liabilities	2	10
Recurring | Interest rate swaps contracts
Financial assets
Total derivative assets	4,199	5,643
Financial liabilities
Total derivative liabilities	8,380	10,705
Recurring | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	771,351	539,256
Recurring | Agency
Financial assets
Investment securities available-for-sale, at fair value	1,165	1,868
Recurring | Corporate
Financial assets
Investment securities available-for-sale, at fair value	405,408	446,343
Recurring | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	138,622	152,604
Recurring | Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	737	759
Total derivative assets	3	1
Financial liabilities
Total derivative liabilities	2	10
Recurring | Level 1 | Foreign exchange contracts
Financial assets
Total derivative assets	3	1
Financial liabilities
Total derivative liabilities	2	10
Recurring | Level 1 | Interest rate swaps contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 1 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 2
Financial assets
Investment securities available-for-sale, at fair value	1,316,546	1,140,071
Equity securities	0	0
Total derivative assets	4,199	5,643
Financial liabilities
Total derivative liabilities	8,380	10,705
Recurring | Level 2 | Foreign exchange contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 2 | Interest rate swaps contracts
Financial assets
Total derivative assets	4,199	5,643
Financial liabilities
Total derivative liabilities	8,380	10,705
Recurring | Level 2 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	771,351	539,256
Recurring | Level 2 | Agency
Financial assets
Investment securities available-for-sale, at fair value	1,165	1,868
Recurring | Level 2 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	405,408	446,343
Recurring | Level 2 | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	138,622	152,604
Recurring | Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	0	0
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 3 | Foreign exchange contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 3 | Interest rate swaps contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 3 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	$ 0	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Reconciliation of Fair Value of Equity Warrants (Details) - Equity warrants - Level 3 - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 0	$ 407	$ 0	$ 1,894
Change in fair value	0	(16)	0	(41)
Net exercise	0	0	0	(1,462)
Ending balance	$ 0	$ 391	$ 0	$ 391

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Narrative (Details) - Discount Rate	Sep. 30, 2024
Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input	0.07
Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input	0.10

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Hierarchy Table on Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair Value Disclosures
Other real estate owned	$ 0	$ 248
Level 1
Fair Value Disclosures
Collateral dependent loans	0	0
Level 2
Fair Value Disclosures
Collateral dependent loans	0	0
Level 3
Fair Value Disclosures
Collateral dependent loans	11,567,236	12,562,323
Nonrecurring
Fair Value Disclosures
Collateral dependent loans	557	1,569
Other real estate owned		248
Total assets	557	1,817
Nonrecurring | Level 1
Fair Value Disclosures
Collateral dependent loans	0	0
Other real estate owned		0
Total assets	0	0
Nonrecurring | Level 2
Fair Value Disclosures
Collateral dependent loans	0	0
Other real estate owned		0
Total assets	0	0
Nonrecurring | Level 3
Fair Value Disclosures
Collateral dependent loans	557	1,569
Other real estate owned		248
Total assets	$ 557	$ 1,817

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Quantitative Information for Level 3 Fair Value Measurements (Details) $ in Thousands	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned	$ 0	$ 248
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	11,567,236	12,562,323
Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	557	1,569
Other real estate owned		248
Total assets	557	1,817
Nonrecurring | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	557	1,569
Other real estate owned		248
Total assets	557	1,817
Nonrecurring | Level 3 | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned		$ 248
Nonrecurring | Level 3 | Cost to sell | Minimum | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input		0.1000
Nonrecurring | Level 3 | Cost to sell | Maximum | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input		0.1000
Nonrecurring | Level 3 | Cost to sell | Weighted Average | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input		0.1000
Nonrecurring | Level 3 | Investor loans secured by real estate | SBA secured by real estate | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	$ 557	$ 419
Nonrecurring | Level 3 | Investor loans secured by real estate | SBA secured by real estate | Cost to sell | Minimum | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000	0.1000
Nonrecurring | Level 3 | Investor loans secured by real estate | SBA secured by real estate | Cost to sell | Maximum | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000	0.1000
Nonrecurring | Level 3 | Investor loans secured by real estate | SBA secured by real estate | Cost to sell | Weighted Average | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000	0.1000
Nonrecurring | Level 3 | Commercial loans | Commercial and industrial | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value		$ 1,150
Nonrecurring | Level 3 | Commercial loans | Commercial and industrial | Cost to sell | Minimum | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0700
Nonrecurring | Level 3 | Commercial loans | Commercial and industrial | Cost to sell | Maximum | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0700
Nonrecurring | Level 3 | Commercial loans | Commercial and industrial | Cost to sell | Weighted Average | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0700

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Fair Value Estimates (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets
HTM investment securities	$ 1,482,042	$ 1,485,506
AFS investment securities	1,316,546	1,140,071
Accrued interest receivable	64,803	68,516
Level 1
Assets
Cash and cash equivalents	982,249	936,473
HTM investment securities	0	0
AFS investment securities	0	0
Equity securities	737	759
Loans held for investment, net	0	0
Derivative assets	3	1
Accrued interest receivable	0	0
Liabilities
Deposit accounts	0	0
FHLB advances		0
Subordinated debentures	0	0
Derivative liabilities	2	10
Accrued interest payable	0	0
Level 1 | Interest-bearing time deposits with financial institutions
Assets
Cash and cash equivalents	1,246	995
Level 2
Assets
Cash and cash equivalents	0	0
HTM investment securities	1,482,042	1,485,506
AFS investment securities	1,316,546	1,140,071
Equity securities	0	0
Loans held for investment, net	0	0
Derivative assets	4,199	5,643
Accrued interest receivable	64,803	68,516
Liabilities
Deposit accounts	14,498,492	15,003,769
FHLB advances		592,480
Subordinated debentures	267,936	320,687
Derivative liabilities	8,380	10,705
Accrued interest payable	13,404	18,671
Level 2 | Interest-bearing time deposits with financial institutions
Assets
Cash and cash equivalents	0	0
Level 3
Assets
Cash and cash equivalents	0	0
HTM investment securities	0	0
AFS investment securities	0	0
Equity securities	0	0
Loans held for investment, net	11,567,236	12,562,323
Derivative assets	0	0
Accrued interest receivable	0	0
Liabilities
Deposit accounts	0	0
FHLB advances		0
Subordinated debentures	0	0
Derivative liabilities	0	0
Accrued interest payable	0	0
Level 3 | Interest-bearing time deposits with financial institutions
Assets
Cash and cash equivalents	0	0
Carrying Amount
Assets
Cash and cash equivalents	982,249	936,473
HTM investment securities	1,713,575	1,729,541
AFS investment securities	1,316,546	1,140,071
Equity securities	737	759
Loans held for investment, net	12,035,097	13,289,020
Derivative assets	4,202	5,644
Accrued interest receivable	64,803	68,516
Liabilities
Deposit accounts	14,480,927	14,995,626
FHLB advances		600,000
Subordinated debentures	272,320	331,842
Derivative liabilities	8,382	10,715
Accrued interest payable	13,404	18,671
Carrying Amount | Interest-bearing time deposits with financial institutions
Assets
Cash and cash equivalents	1,246	995
Estimated Fair Value
Assets
Cash and cash equivalents	982,249	936,473
HTM investment securities	1,482,042	1,485,506
AFS investment securities	1,316,546	1,140,071
Equity securities	737	759
Loans held for investment, net	11,567,236	12,562,323
Derivative assets	4,202	5,644
Accrued interest receivable	64,803	68,516
Liabilities
Deposit accounts	14,498,492	15,003,769
FHLB advances		592,480
Subordinated debentures	267,936	320,687
Derivative liabilities	8,382	10,715
Accrued interest payable	13,404	18,671
Estimated Fair Value | Interest-bearing time deposits with financial institutions
Assets
Cash and cash equivalents	$ 1,246	$ 995

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) - USD ($)	3 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Derivative assets, notional	$ 595,349,000	$ 703,973,000
Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets, notional	500,000,000	600,000,000
Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative assets, notional	95,349,000	103,973,000
Interest rate swaps contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative discontinued, notional amount	450,000,000
Derivative matured in period, notional amount	100,000,000
Derivative assets, notional	800,000,000
Interest rate swaps contracts | Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative assets, notional	95,268,000	103,954,000
Equity warrants | Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative assets	$ 0	$ 0

Derivative Instruments - Cumula

Derivative Instruments - Cumulative Basis Adjustment for Fair Value Hedges (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets, notional	$ 595,349	$ 703,973
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Carrying Amount of the Hedged Assets	783,847	1,320,449
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	(15,499)	(29,551)
Derivative assets, notional	500,000	600,000
Designated as Hedging Instrument | Interest rate swaps contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets, notional	800,000
Loans held for investment | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Carrying Amount of the Hedged Assets	783,847	1,320,449
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	(15,499)	(29,551)
Amortized cost used in hedging relationships	2,040,000	3,250,000
Cumulative basis adjustments associated with hedging relationships	(15,500)	(29,600)
Discontinued hedging relationship hedging adjustment	654
Loans held for investment | Designated as Hedging Instrument | Interest rate swaps contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets, notional	$ 800,000	$ 1,350,000

Derivative Instruments - Summar

Derivative Instruments - Summary (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Derivative assets, notional	$ 595,349	$ 703,973
Derivative assets	25,457	44,939
Derivative asset, netting adjustments - cleared positions	21,255	39,295
Derivative asset, net derivatives in the balance sheet	$ 4,202	$ 5,644
Derivative asset, statement of financial position [Extensible Enumeration]	Other assets	Other assets
Derivative liabilities, notional	$ 395,555	$ 854,364
Total derivative liabilities	8,294	13,603
Derivative liabilities netting adjustments - cleared positions	(88)	2,888
Derivative liabilities, net derivatives in the balance sheet	$ 8,382	$ 10,715
Derivative liability, statement of financial position [Extensible Enumeration]	Accrued expenses and other liabilities	Accrued expenses and other liabilities
Interest rate swaps contracts
Derivative [Line Items]
Derivative assets	$ 4,199	$ 5,643
Gross Amounts Offset in the Consolidated Statements of Financial Condition	0	0
Derivative asset, net derivatives in the balance sheet	4,199	5,643
Total derivative liabilities	8,380	10,705
Derivative liabilities, net derivatives in the balance sheet	8,380	10,705
Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets, notional	500,000	600,000
Derivative assets	17,239	34,541
Derivative liabilities, notional	300,000	750,000
Total derivative liabilities	67	3,184
Designated as Hedging Instrument | Fair value hedge - interest rate swap contracts
Derivative [Line Items]
Derivative assets, notional	500,000	600,000
Derivative assets	17,239	34,541
Derivative liabilities, notional	300,000	750,000
Total derivative liabilities	67	3,184
Designated as Hedging Instrument | Interest rate swaps contracts
Derivative [Line Items]
Derivative assets, notional	800,000
Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative assets, notional	95,349	103,973
Derivative assets	8,218	10,398
Derivative liabilities, notional	95,555	104,364
Total derivative liabilities	8,227	10,419
Not Designated as Hedging Instruments | Foreign exchange contracts
Derivative [Line Items]
Derivative assets, notional	81	19
Derivative assets	3	1
Derivative liabilities, notional	287	410
Total derivative liabilities	2	10
Not Designated as Hedging Instruments | Interest rate swaps contracts
Derivative [Line Items]
Derivative assets, notional	95,268	103,954
Derivative assets	8,215	10,397
Derivative liabilities, notional	95,268	103,954
Total derivative liabilities	$ 8,225	$ 10,409

Derivative Instruments - The Ef

Derivative Instruments - The Effect of Fair Value Hedge Accounting on the Consolidated Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Gain (loss) on fair value hedging relationships:
Derivatives not designated as hedging instruments	$ 180	$ 180	$ 535	$ (123)
Interest Income
Gain (loss) on fair value hedging relationships:
Hedged items	12,048	4,300	13,398	13,096
Derivatives designated as hedging instruments	(5,123)	6,268	8,068	15,578
Other income | Foreign exchange contracts
Gain (loss) on fair value hedging relationships:
Derivatives not designated as hedging instruments	181	205	533	688
Other income | Interest rate products
Gain (loss) on fair value hedging relationships:
Derivatives not designated as hedging instruments	(1)	(9)	2	(9)
Other income | Equity warrants
Gain (loss) on fair value hedging relationships:
Derivatives not designated as hedging instruments	$ 0	$ (16)	$ 0	$ (802)

Balance Sheet Offsetting (Detai

Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative assets:
Gross amounts recognized	$ 25,457	$ 44,939
Net Amounts Presented in the Consolidated Statements of Financial Condition	4,202	5,644
Derivative liabilities:
Gross amounts recognized	8,294	13,603
Net Amounts Presented in the Consolidated Statements of Financial Condition	8,382	10,715
Interest rate swaps contracts
Derivative assets:
Gross amounts recognized	4,199	5,643
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset	0	0
Net Amounts Presented in the Consolidated Statements of Financial Condition	4,199	5,643
Financial instruments	0	0
Cash collateral	(3,530)	(4,610)
Net Amount	669	1,033
Derivative liabilities:
Gross amounts recognized	8,380	10,705
Gross Amounts Offset in the Consolidated Statements of Financial Condition	0	0
Net Amounts Presented in the Consolidated Statements of Financial Condition	8,380	10,705
Financial instruments	0	0
Cash collateral	0	0
Net Amount	$ 8,380	$ 10,705

Variable Interest Entities - Sc

Variable Interest Entities - Schedule of Variable Interest Entities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
AFS investment securities	$ 1,316,546	$ 1,140,071
Accrued expenses and other liabilities	212,459	216,596
Other assets	308,123	368,996
Assets	17,909,643	19,026,645
Liabilities	14,965,706	16,144,064
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Maximum Loss	134,515	153,214
Assets	125,605	137,289
Liabilities	33,740	32,415
Variable Interest Entity, Not Primary Beneficiary | Multifamily Loan Securitization, Asset
Variable Interest Entity [Line Items]
Maximum Loss	42,266	48,204
AFS investment securities	42,266	48,204
Variable Interest Entity, Not Primary Beneficiary | Multifamily Loan Securitization, Liability
Variable Interest Entity [Line Items]
Maximum Loss	42,305	47,994
Accrued expenses and other liabilities	345	345
Variable Interest Entity, Not Primary Beneficiary | Affordable Housing Partnership, Asset
Variable Interest Entity [Line Items]
Maximum Loss	49,944	57,016
Other assets	83,339	89,085
Variable Interest Entity, Not Primary Beneficiary | Affordable Housing Partnership, Liability
Variable Interest Entity [Line Items]
Maximum Loss	0	0
Accrued expenses and other liabilities	$ 33,395	$ 32,070

Variable Interest Entities - Na

Variable Interest Entities - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Accrued liabilities and other liabilities	$ 212,459	$ 216,596
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Maximum loss	$ 134,515	153,214
Variable Interest Entity, Not Primary Beneficiary | Multifamily Loan Securitization, Liability
Variable Interest Entity [Line Items]
Maximum loss, percentage of loans	10%
Total outstanding principal amount	$ 50,900
Maximum loss	42,305	47,994
Accrued liabilities and other liabilities	345	345
Variable Interest Entity, Not Primary Beneficiary | Multifamily Loan Securitization
Variable Interest Entity [Line Items]
Accrued liabilities and other liabilities	$ 345	$ 345

Tax Equity Investments - Narrat

Tax Equity Investments - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Amortization method investments in qualified affordable housing projects	$ 83,300,000		$ 83,300,000		$ 88,800,000
Non-income-tax-related income	0	$ 0	371,000	$ 0
Impairment losses recorded on tax equity investments	$ 0	$ 0	$ 0	$ 0

Tax Equity Investments - Schedu

Tax Equity Investments - Schedule of Estimates for Unfunded Affordable Housing Commitments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Federal Home Loan Banks [Abstract]
2024	$ 3,885		$ 3,885
2025	14,727		14,727
2026	11,027		11,027
2027	720		720
2028	469		469
Thereafter	2,567		2,567
Total unfunded commitments	33,395		33,395
Tax credit and other tax benefits recognized	4,309	$ 4,189	12,743	$ 11,746
Amortization of investments	$ 3,546	$ 3,360	$ 10,496	$ 9,464

Subsequent Events (Details)

Subsequent Events (Details) - $ / shares	3 Months Ended			9 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share)		$ 0.33	$ 0.33	$ 0.99	$ 0.99
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share)	$ 0.33