Pacific Premier Bancorp (PPBI) 10-Q 28 Jul 23 2023 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2023	Jul. 21, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
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		95,901,264
Entity Central Index Key	0001028918
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 154,392	$ 135,207
Interest-bearing deposits with financial institutions	1,309,285	966,042
Cash and cash equivalents	1,463,677	1,101,249
Interest-bearing time deposits with financial institutions	1,487	1,734
Investments securities held-to-maturity, at amortized cost, net of allowance for credit losses of $113 and $43 (fair value of $1,458,287 and $1,097,096) at June 30, 2023 and December 31, 2022, respectively	1,737,604	1,388,103
Investment securities available-for-sale, at fair value	2,011,791	2,601,013
FHLB, FRB, and other stock	105,369	119,918
Loans held for sale, at lower of cost or fair value	2,184	2,643
Loans held for investment	13,610,282	14,676,298
Allowance for credit losses	(192,333)	(195,651)
Loans held for investment, net	13,417,949	14,480,647
Accrued interest receivable	70,093	73,784
Other real estate owned	270	0
Premises and equipment, net	61,527	64,543
Deferred income taxes, net	184,857	183,602
Bank owned life insurance	465,288	460,010
Intangible assets	49,362	55,588
Goodwill	901,312	901,312
Other assets	275,113	253,871
Total assets	20,747,883	21,688,017
Deposit accounts:
Noninterest-bearing checking	5,895,975	6,306,825
Interest-bearing:
Checking	2,759,855	3,119,850
Money market/savings	4,801,288	5,422,607
Retail certificates of deposit	1,366,071	1,086,423
Wholesale/brokered certificates of deposit	1,716,686	1,416,696
Total interest-bearing	10,643,900	11,045,576
Total deposits	16,539,875	17,352,401
FHLB advances and other borrowings	800,000	1,000,000
Subordinated debentures	331,523	331,204
Accrued expenses and other liabilities	227,351	206,023
Total liabilities	17,898,749	18,889,628
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 June 30, 2023 and December 31, 2022; 95,906,217 shares and 95,021,760 shares issued and outstanding, respectively	937	933
Additional paid-in capital	2,366,639	2,362,663
Retained earnings	757,025	700,040
Accumulated other comprehensive loss	(275,467)	(265,247)
Total stockholders’ equity	2,849,134	2,798,389
Total liabilities and stockholders’ equity	$ 20,747,883	$ 21,688,017

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Investments held-to-maturity, allowance for credit losses	$ 113	$ 43
Investments held-to-maturity, fair value	$ 1,458,287	$ 1,097,096
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)	95,906,217	95,021,760
Common stock, shares outstanding (in shares)	95,906,217	95,021,760

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
INTEREST INCOME
Loans	$ 182,852	$ 164,455	$ 363,810	$ 315,059
Investment securities and other interest-earning assets	42,536	18,771	82,921	36,713
Total interest income	225,388	183,226	446,731	351,772
INTEREST EXPENSE
Deposits	53,580	2,682	93,814	4,355
FHLB advances and other borrowings	7,155	3,217	15,093	3,691
Subordinated debentures	4,561	4,562	9,122	9,122
Total interest expense	65,296	10,461	118,029	17,168
Net interest income before provision for credit losses	160,092	172,765	328,702	334,604
Provision for credit losses	1,499	469	4,515	917
Net interest income after provision for credit losses	158,593	172,296	324,187	333,687
NONINTEREST INCOME
Loan servicing income	493	502	1,066	921
Earnings on bank owned life insurance	3,487	3,240	6,861	6,461
Net gain from sales of loans	345	1,136	374	2,630
Net gain (loss) from sales of investment securities	0	(31)	138	2,103
Other income	2,031	1,173	3,292	2,741
Total noninterest income	20,539	22,193	41,725	48,087
NONINTEREST EXPENSE
Compensation and benefits	53,424	57,562	107,717	114,543
Premises and occupancy	11,615	11,829	23,357	23,781
Data processing	7,488	6,604	14,753	12,600
Other real estate owned operations, net	8	0	116	0
FDIC insurance premiums	2,357	1,452	4,782	2,848
Legal and professional services	4,716	4,629	10,217	8,697
Marketing expense	1,879	1,926	3,717	3,735
Office expense	1,280	1,252	2,512	2,455
Loan expense	567	1,144	1,213	2,278
Deposit expense	9,194	4,081	17,630	7,832
Amortization of intangible assets	3,055	3,479	6,226	7,071
Other expense	5,061	5,016	9,756	10,782
Total noninterest expense	100,644	98,974	201,996	196,622
Net income before income taxes	78,488	95,515	163,916	185,152
Income tax expense	20,852	25,712	43,718	48,445
Net income	$ 57,636	$ 69,803	$ 120,198	$ 136,707
EARNINGS PER SHARE
Basic (in dollars per share)	$ 0.60	$ 0.74	$ 1.26	$ 1.44
Diluted (in dollars per share)	$ 0.60	$ 0.73	$ 1.26	$ 1.44
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	94,166,083	93,765,264	94,012,799	93,633,213
Diluted (in shares)	94,215,967	94,040,691	94,192,341	93,983,057
Service charges on deposit accounts
NONINTEREST INCOME
Noninterest income	$ 2,670	$ 2,690	$ 5,299	$ 5,305
Other service fee income
NONINTEREST INCOME
Noninterest income	315	366	611	733
Debit card interchange fee income
NONINTEREST INCOME
Noninterest income	914	936	1,717	1,772
Trust custodial account fees
NONINTEREST INCOME
Noninterest income	9,360	10,354	20,385	21,933
Escrow and exchange fees
NONINTEREST INCOME
Noninterest income	$ 924	$ 1,827	$ 1,982	$ 3,488

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income		$ 57,636	$ 69,803	$ 120,198	$ 136,707
Other comprehensive income (loss), net of tax:
Unrealized (loss) gain on securities available-for-sale, net of income taxes	[1]	(15,550)	(40,474)	20,850	(159,065)
Reclassification adjustment for net loss (gain) on sales of securities included in net income, net of income taxes	[2]	0	22	(99)	(1,503)
Net unrealized loss on securities transferred from available-for-sale to held-to-maturity, net of income taxes	[3]	0	(31,326)	(36,076)	(47,884)
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity, net of income taxes	[4]	2,812	993	5,105	1,296
Other comprehensive (loss), net of tax		(12,738)	(70,785)	(10,220)	(207,156)
Comprehensive income (loss), net of tax		$ 44,898	$ (982)	$ 109,978	$ (70,449)
[1]Income tax (benefit) expense of the unrealized (loss) gain on securities was $(6.2) million and $(16.2) million for the three months ended June 30, 2023 and June 30, 2022, respectively, and $8.3 million and $(63.5) million for the six months ended June 30, 2023 June 30, 2022, respectively.[2]Income tax (benefit) expense on the reclassification adjustment for net gain on sales of securities included in net income was $0 and $(9,000) for the three months ended June 30, 2023 and June 30, 2022, respectively, and $39,000 and $600,000 for the six months ended June 30, 2023 and June 30, 2022, respectively.[3]Income tax (benefit) expense on the unrealized loss on securities transferred from available-for-sale to held-to-maturity was $0 and $(12.5) million for the three months ended June 30, 2023 and June 30, 2022, respectively, and $(14.3) million and $(19.1) million for the six months ended June 30, 2023 and June 30, 2022, 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 $1.1 million and $396,000 for the three months ended June 30, 2023 and June 30, 2022, respectively, and $2.0 million and $517,000 for the six months ended June 30, 2023 and June 30, 2022, respectively.

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Unrealized holding (loss) gain on securities arising during the period, income tax expense (benefit)	$ (6,200)	$ (16,200)	$ 8,300	$ (63,500)
Reclassification adjustment for net gain on sale of securities included in net income, income tax expense	0	(9)	39	600
Unrealized loss on securities transferred from available-for-sale to held-to maturity, income tax (benefit) expense	0	(12,500)	(14,300)	(19,100)
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity, income tax expense	$ 1,100	$ 396	$ 2,000	$ 517

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, 2021		94,389,543
Balance at beginning of period at Dec. 31, 2021	$ 2,886,311	$ 929	$ 2,351,294	$ 541,950	$ (7,862)
Increase (Decrease) in Stockholders' Equity
Net income	136,707			136,707
Other comprehensive loss	(207,156)				(207,156)
Cash dividends declared	(62,469)			(62,469)
Dividend equivalents declared	0		245	(245)
Share-based compensation expense	9,835		9,835
Issuance of restricted stock, net (in shares)		761,777
Issuance of restricted stock, net	0	$ 4	(4)
Restricted stock surrendered and canceled (in shares)		(212,503)
Restricted stock surrendered and canceled	(8,674)		(8,674)
Exercise of stock options (in shares)		37,788
Exercise of stock options	665		665
Balance at end of period (in shares) at Jun. 30, 2022		94,976,605
Balance at end of period at Jun. 30, 2022	2,755,219	$ 933	2,353,361	615,943	(215,018)
Balance at beginning of period (in shares) at Mar. 31, 2022		94,945,849
Balance at beginning of period at Mar. 31, 2022	2,783,018	$ 933	2,348,727	577,591	(144,233)
Increase (Decrease) in Stockholders' Equity
Net income	69,803			69,803
Other comprehensive loss	(70,785)				(70,785)
Cash dividends declared	(31,327)			(31,327)
Dividend equivalents declared	0		124	(124)
Share-based compensation expense	4,305		4,305
Issuance of restricted stock, net (in shares)		46,994
Issuance of restricted stock, net	0
Restricted stock surrendered and canceled (in shares)		(37,284)
Restricted stock surrendered and canceled	(126)		(126)
Exercise of stock options (in shares)		21,046
Exercise of stock options	331		331
Balance at end of period (in shares) at Jun. 30, 2022		94,976,605
Balance at end of period at Jun. 30, 2022	$ 2,755,219	$ 933	2,353,361	615,943	(215,018)
Balance at beginning of period (in shares) at Dec. 31, 2022	95,021,760	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	120,198			120,198
Other comprehensive loss	(10,220)				(10,220)
Cash dividends declared	(62,969)			(62,969)
Dividend equivalents declared	0		244	(244)
Share-based compensation expense	9,272		9,272
Issuance of restricted stock, net (in shares)		1,074,073
Issuance of restricted stock, net	0	$ 4	(4)
Restricted stock surrendered and canceled (in shares)		(205,086)
Restricted stock surrendered and canceled	(5,782)		(5,782)
Exercise of stock options (in shares)		15,470
Exercise of stock options	$ 246		246
Balance at end of period (in shares) at Jun. 30, 2023	95,906,217	95,906,217
Balance at end of period at Jun. 30, 2023	$ 2,849,134	$ 937	2,366,639	757,025	(275,467)
Balance at beginning of period (in shares) at Mar. 31, 2023		95,714,777
Balance at beginning of period at Mar. 31, 2023	2,831,161	$ 937	2,361,830	731,123	(262,729)
Increase (Decrease) in Stockholders' Equity
Net income	57,636			57,636
Other comprehensive loss	(12,738)				(12,738)
Cash dividends declared	(31,612)			(31,612)
Dividend equivalents declared	0		122	(122)
Share-based compensation expense	4,543		4,543
Issuance of restricted stock, net (in shares)		239,349
Issuance of restricted stock, net	0
Restricted stock surrendered and canceled (in shares)		(62,911)
Restricted stock surrendered and canceled	(91)		(91)
Exercise of stock options (in shares)		15,002
Exercise of stock options	$ 235		235
Balance at end of period (in shares) at Jun. 30, 2023	95,906,217	95,906,217
Balance at end of period at Jun. 30, 2023	$ 2,849,134	$ 937	$ 2,366,639	$ 757,025	$ (275,467)

CONSOLIDATED STATEMENTS OF ST_2

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.33	$ 0.33	$ 0.66	$ 0.66
Dividend equivalents declared (in dollars per share)	$ 0.33	$ 0.33	$ 0.66	$ 0.66

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income	$ 120,198	$ 136,707
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	7,111	7,480
Provision for credit losses	4,515	917
Share-based compensation expense	9,272	9,835
Loss on sales and disposals of premises and equipment	35	38
Net gain on sales of other real estate owned	(106)	0
Net amortization on securities	7,289	9,874
Net accretion of discounts/premiums for acquired loans and deferred loan fees/costs	(8,369)	(15,776)
Net gain on sales of investment securities available-for-sale	(138)	(2,103)
Net gain on sales of loans	(374)	(2,630)
Deferred income tax expense	2,802	6,336
Income from bank owned life insurance, net	(5,550)	(5,241)
Amortization of intangible assets	6,226	7,071
Origination of loans held for sale	(766)	(33,778)
Proceeds from the sales of and principal payments from loans held for sale	833	44,320
Change in accrued expenses and other liabilities, net	21,752	(14,127)
Change in accrued interest receivable and other assets, net	11,679	61,455
Net cash provided by operating activities	176,409	210,378
Cash flows from investing activities:
Net decrease in interest-bearing time deposits with financial institutions	247	0
Proceeds from sales of other real estate owned	3,307	0
Loan originations and payments, net	989,184	(791,918)
Proceeds from loans held for sale previously classified as portfolio loans	84,472	0
Purchase of loans held for investment	0	(797)
Purchase of securities held-to-maturity	(8,000)	0
Proceeds from prepayments and maturities of securities held-to-maturity	21,454	10,242
Purchase of securities available-for-sale	(224,347)	(583,329)
Proceeds from prepayments and maturities of securities available-for-sale	124,796	184,974
Proceeds from sales of securities available-for-sale	304,320	705,729
Proceeds from the sales of premises and equipment	3	0
Purchase of premises and equipment	(4,133)	(4,045)
Change in FHLB, FRB, and other stock	1,911	(2,243)
Funding of Community Reinvestment Act (“CRA”) investments, net	(26,164)	(1,442)
Net cash provided by (used in) investing activities	1,267,050	(482,829)
Cash flows from financing activities:
Net (decrease) increase in deposit accounts	(812,526)	969,024
Net change in short-term borrowings	(200,000)	(358,000)
Proceeds from long-term borrowings	0	400,000
Cash dividends paid	(62,969)	(62,469)
Proceeds from exercise of stock options	246	665
Restricted stock surrendered and canceled	(5,782)	(8,674)
Net cash (used in) provided by financing activities	(1,081,031)	940,546
Net increase in cash and cash equivalents	362,428	668,095
Cash and cash equivalents, beginning of period	1,101,249	304,703
Cash and cash equivalents, end of period	1,463,677	972,798
Supplemental cash flow disclosures:
Interest paid	105,459	16,640
Income taxes paid, net	1,071	31,433
Noncash investing activities during the period:
Transfers from portfolio loans to loans held for sale	84,993	0
Transfers from loans held for sale to loans held for investment	1,287	0
Other real estate owned transferred from loans held for investment	7,156	0
Transfers of investment securities from available-for-sale to held-to-maturity	360,347	1,019,472
Transfers of CRA investment securities from other stock to other assets	12,601	0
Recognition of operating lease right-of-use assets	(1,804)	(1,183)
Recognition of operating lease liabilities	1,949	1,183
Due on unsettled security purchases	$ 0	$ (30,149)

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2023
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 six months ended June 30, 2023 are not necessarily indicative of the results that may be expected for any other interim period or the full year ending December 31, 2023. 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, 2022 (the “2022 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	6 Months Ended
	Jun. 30, 2023
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Accounting Standards Adopted in 2023 In March 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2022-02, Financial Instruments - Credit Losses (Topic 326) Troubled Debt Restructurings and Vintage Disclosures . The FASB issued this Update in response to feedback the FASB received from various stakeholders in its post-implementation review process related to the issuance of ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which was effective for the Company on January 1, 2020. The amendments in this Update include the elimination of accounting guidance for troubled debt restructurings (“TDRs”) in Subtopic 310-40 - Receivables - Troubled Debt Restructurings by Creditors , and introduce new disclosures and enhance existing disclosures concerning certain loan refinancings and restructurings when a borrower is experiencing financial difficulty. Under the provisions of this Update, an entity must determine whether a modification results in a new loan or the continuation of an existing loan. Further, the amendments in this Update require that a public business entity disclose current period gross charge-offs on financing receivables within the scope of ASC 326-20, Financial Instruments - Credit Losses - Measured at Amortized Cost , by year of origination and class of financing receivable. The amendments in this Update became effective for the Company on January 1, 2023 for all interim and annual periods. The adoption of the provisions in this Update are applied prospectively and have resulted in additional disclosures concerning modifications of loans to borrowers experiencing financial difficulty, as well as disaggregated disclosure of charge-offs on loans. Please also see Note 5 – Loans Held for Investment for added disclosure concerning modifications of loans to borrowers experiencing financial difficulty, as well as current period gross charge-offs on financing receivables within by year of origination and class of financing receivable. In March 2022, the FASB issued ASU 2022-01, Derivatives and Hedging (Topic 815) Fair Value Hedging - Portfolio Layer Method . The amendments in this Update make targeted improvements to fair value hedge accounting and more specifically to the last-of-layer hedge accounting method. This Update expands the last-of-layer hedge accounting method to allow for multiple hedged layers to be designated for a single closed portfolio of prepayable financial assets, and renames this accounting method the “portfolio layer method.” The provisions of this Update also include: (i) expanding the scope of the portfolio layer method to nonprepayable financial assets, (ii) specifying that eligible hedging instruments in a single layer hedge may include spot-starting or forward-starting constant-notional or amortizing-notional swaps and that the number of hedged layers corresponds with the number of hedges designated, (iii) specifies that an entity hedging multiple amounts in a closed portfolio using a single amortizing-notional swap is executing a single-layer hedge, (iv) provides additional guidance on the accounting for and disclosure of hedge basis adjustments resulting from a fair value hedge under the portfolio layer method by requiring such basis adjustments be maintained at the portfolio level and not allocated to individual assets, and to disclose basis adjustments as a reconciling item in certain disclosures, such as those for loans, and (v) specifies that an entity is to exclude hedge basis adjustments in the determination of credit losses on the assets within the closed portfolio. The provisions of this Update became effective for the Company on January 1, 2023 for all interim and annual periods. The adoption of the provisions in this Update did not have a material impact on the Company’s consolidated financial statements. Please also see Note 11 – Derivative Instruments , for disclosure concerning the Company’s portfolio layer method fair value hedges. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848)—Facilitation of the Effects of Reference Rate Reform on Financial Reporting. In response to concerns about structural risks of Interbank Offered Rates (“IBORs”), and particularly, the risk of cessation of the London Interbank Offered Rate (“LIBOR”), regulators around the world have undertaken reference rate reform initiatives to identify alternative reference rates that are more observable or transaction-based and less susceptible to manipulation. The amendments in this Update provide optional guidance for a limited time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting as well as optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this Update apply only to contracts and hedging relationships that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022. The amendments in this Update are elective and become effective upon issuance for all entities. An entity may elect to apply the amendments in this Update to eligible hedging relationships existing as of the beginning of the interim period that includes March 12, 2020 and to new eligible hedging relationships entered into after the beginning of the interim period that includes March 12, 2020. The Company has not entered into any hedging related transactions that reference LIBOR or another reference rate that is expected to be discontinued, and as such, the amendments included in this Update have not had an impact on the Company’s consolidated financial statements. The use of LIBOR was discontinued after June 30, 2023. In anticipation of this, the Company previously created a cross-functional working group to manage the transition away from LIBOR. This working group was comprised of senior leadership and staff from functional areas that include: finance, treasury, lending, loan servicing, enterprise risk management, information technology, legal, and other internal stakeholders integral to the Bank’s transition away from LIBOR. The working group monitored developments related to transition and uncertainty surrounding reference rate reform and guided the Bank’s response. The working group performed regular assessments of the population of financial instruments that referenced LIBOR and worked to transition such instruments away from LIBOR. The working group also worked to confirm the Bank’s loan documents that referenced LIBOR have been appropriately amended, ensuring that our internal systems were prepared for the transition, and managed the transition process with our customers. The Company has chosen to use the Secured Overnight Financing Rate (“SOFR”) as an alternative to LIBOR. However, the Company may also use other alternative reference rates, such as the Constant Maturity Treasury index and Prime rate based on the individual needs of our customers as well as the types of credit being extended. Recent Accounting Guidance Not Yet Effective In March 2023, the FASB issued ASU 2023-01, Leases (Topic 842), Common Control Arrangements . The amendments in this Update clarify the accounting for leasehold improvements associated with common control leases. This Update has been issued in order to address current diversity in practice associated with the accounting for leasehold improvements associated with a lease between entities under common control. The amendments in this Update apply to all lessees that are a party to a lease between entities under common control in which there are leasehold improvements. The amendments in this Update are effective for interim and annual periods beginning after December 15, 2023. The Company has evaluated the provisions of this Update, and does not anticipate the adoption will have a material impact on the Company’s consolidated financial statements. In March 2023, the FASB issued ASU 2023-02, Investments - Equity Method and Joint Ventures (Topic 323), Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method, a consensus of the Emerging Issues Task Force . 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 are effective for the Company for interim and annual periods beginning after December 15, 2023. Early adoption is permitted. The Company is currently evaluating the impact of this Update on its consolidated financial statements.

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Jun. 30, 2023
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 2022 Form 10-K. Significant changes to accounting policies from those disclosed in our audited consolidated financial statements included in our 2022 Form 10-K are presented below. Modified Loans to Borrowers Experiencing Financial Difficulty. Infrequently, the Company makes modifications to certain loans 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. The Company also refers to these modifications as modified loans to troubled borrowers (“MLTB”). Modifications may include: changes in the amortization terms of the loan, reductions in interest rates, acceptance of interest only payments, and, in very limited cases, reductions to the outstanding loan balance. Such loans are typically placed on nonaccrual status when there is doubt concerning the full repayment of principal and interest or the loan has been in default for a period of 90 days or more. Such loans may be returned to accrual status when all contractual amounts past due have been brought current, and the borrower’s performance under the modified terms of the loan agreement and the ultimate collectability of all contractual amounts due under the modified terms is no longer in doubt. The Company typically measures the allowance for credit losses (“ACL”) on MLTB on an individual basis when the loans are deemed to no longer share risk characteristics that are similar with other loans in the portfolio. The determination of the ACL for these loans is based on a discounted cash flow approach for both those measured collectively and individually, unless the loan is deemed collateral dependent, which requires measurement of the ACL based on the estimated expected fair value of the underlying collateral, less costs to sell. GAAP requires the Company to make certain disclosures related to these loans, including certain types of modifications, as well as how such loans have performed since their modifications. Please see Note 5 – Loans Held for Investment for additional information concerning modified loans to troubled borrowers. Other Real Estate Owned (“OREO”) . Real estate properties acquired through, or in lieu of foreclosure are recorded at fair value, less cost to sell, with any excess of the loan’s amortized cost balance over the fair value of the property recorded as a charge against the ACL. The Company obtains an appraisal and/or market valuation on all other real estate owned at the time of possession. After foreclosure, valuations are periodically performed by management. Any subsequent declines in fair value are recorded as a charge to noninterest expense in current period earnings with a corresponding write-down to the asset. All legal fees and direct costs, including foreclosure and other related costs, are expensed as incurred.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2023
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: June 30, 2023 U.S. Treasury $ 14,944 $ — $ (1,840) $ 13,104 Agency 463,958 — (50,103) 413,855 Corporate 561,128 104 (63,113) 498,119 Collateralized mortgage obligations 357,766 — (30,509) 327,257 Mortgage-backed securities 888,740 — (129,284) 759,456 Total AFS investment securities $ 2,286,536 $ 104 $ (274,849) $ 2,011,791 December 31, 2022 U.S. Treasury $ 49,156 $ — $ (2,139) $ 47,017 Agency 485,331 — (53,893) 431,438 Corporate 586,652 — (44,104) 542,548 Collateralized mortgage obligations 829,928 — (65,699) 764,229 Mortgage-backed securities 953,678 — (137,897) 815,781 Total AFS investment securities $ 2,904,745 $ — $ (303,732) $ 2,601,013 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: June 30, 2023 Municipal bonds $ 1,147,604 $ (113) $ 1,147,491 $ — $ (238,542) $ 908,949 Collateralized mortgage obligations 349,328 — 349,328 70 (7,385) 342,013 Mortgage-backed securities 224,470 — 224,470 — (33,460) 191,010 Other 16,315 — 16,315 — — 16,315 Total HTM investment securities $ 1,737,717 $ (113) $ 1,737,604 $ 70 $ (279,387) $ 1,458,287 December 31, 2022 Municipal bonds $ 1,148,055 $ (43) $ 1,148,012 $ 44 $ (257,430) $ 890,626 Mortgage-backed securities 231,692 — 231,692 — (33,621) 198,071 Other 8,399 — 8,399 — — 8,399 Total HTM investment securities $ 1,388,146 $ (43) $ 1,388,103 $ 44 $ (291,051) $ 1,097,096 The Company reassesses classification of certain investments as part of the ongoing review of the investment securities portfolio. During the first half of 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. These collateralized mortgage obligations securities 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 over the remaining term of the securities. No gains or losses were recorded at the time of transfer. During the first half of 2022, the Company transferred AFS municipal bond portfolio of $831.4 million and mortgage-backed securities of $255.0 million 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 municipal bonds had a net carrying amount of $780.7 million with a pre-tax unrealized loss of $50.8 million, and the mortgage-backed securities had a net carrying amount of $238.8 million with a pre-tax unrealized loss of $16.2 million, both of which are accreted into interest income as yield adjustments over the remaining term of the securities. No gains or losses were recorded at the time of transfer. Investment securities with carrying values of $3.70 billion and $195.6 million as of June 30, 2023 and December 31, 2022, respectively, were pledged to other borrowings, secure public deposits, and for other purposes as required or permitted by law. The increase in the investment securities pledged during the first half of 2023 was primarily due to the additional investment securities with carrying values of $1.68 billion pledged to the Federal Reserve's discount window and $1.83 billion pledged to the Federal Reserve's new Bank Term Funding Program launched in March 2023 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 June 30, 2023, the Company had a net unrealized loss on AFS investment securities of $274.7 million, or $196.6 million net of tax in accumulated other comprehensive loss, compared to a net unrealized loss of $303.7 million, or $217.4 million net of tax in accumulated other comprehensive loss, at December 31, 2022. 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 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 June 30, 2023, the unrealized loss on investment securities transferred from AFS to HTM was $110.1 million, or $78.8 million net of tax in accumulated other comprehensive loss. 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 has not been recorded as of the dates indicated, aggregated by investment category and length of time in a continuous loss position. June 30, 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 — $ — $ — 1 $ 13,104 $ (1,840) 1 $ 13,104 $ (1,840) Agency 4 43,105 (895) 37 370,751 (49,208) 41 413,856 (50,103) Corporate 2 26,068 (3,932) 50 457,013 (59,181) 52 483,081 (63,113) Collateralized mortgage obligations 4 69,635 (991) 49 257,622 (29,518) 53 327,257 (30,509) Mortgage-backed securities. 2 27,663 (323) 78 731,793 (128,961) 80 759,456 (129,284) Total AFS investment securities 12 $ 166,471 $ (6,141) 215 $ 1,830,283 $ (268,708) 227 $ 1,996,754 $ (274,849) December 31, 2022 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 5 $ 33,982 $ (237) 1 $ 13,036 $ (1,902) 6 $ 47,018 $ (2,139) Agency 8 79,895 (1,265) 35 351,543 (52,628) 43 431,438 (53,893) Corporate 35 327,984 (20,840) 21 214,565 (23,264) 56 542,549 (44,104) Collateralized mortgage obligations 41 522,955 (33,318) 40 241,229 (32,381) 81 764,184 (65,699) Mortgage-backed securities 13 91,762 (6,987) 68 724,019 (130,910) 81 815,781 (137,897) Total AFS investment securities 102 $ 1,056,578 $ (62,647) 165 $ 1,544,392 $ (241,085) 267 $ 2,600,970 $ (303,732) 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 income, 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. Credit losses on HTM investment securities are representative of current expected credit losses that may be incurred over the life of the investment and are recorded at the time of purchase or acquisition and when the Company has designated securities as HTM. 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. At June 30, 2023 and December 31, 2022, the Company had an ACL of $113,000 and $43,000, respectively, for HTM investment securities classified as municipal bonds. The following table presents a rollforward by major security type of the allowance for credit losses on the Company's HTM debt securities as of and for the periods indicated: Three Months Ended June 30, 2023 (Dollars in thousands) Balance, March 31, 2023 Provision for Credit Losses Balance, June 30, 2023 HTM investment securities: Municipal bonds $ 227 $ (114) $ 113 Three Months Ended June 30, 2022 (Dollars in thousands) Balance, March 31, 2022 Provision for Credit Losses Balance, June 30, 2022 HTM investment securities: Municipal bonds $ 41 $ 68 $ 109 Six Months Ended June 30, 2023 (Dollars in thousands) Balance, December 31, 2022 Provision for Credit Losses Balance, June 30, 2023 HTM investment securities: Municipal bonds $ 43 $ 70 $ 113 Six Months Ended June 30, 2022 (Dollars in thousands) Balance, December 31, 2021 Provision for Credit Losses Balance, June 30, 2022 HTM investment securities: Municipal bonds $ 22 $ 87 $ 109 The Company had no ACL for AFS investment securities at June 30, 2023 and December 31, 2022. The Company performed a qualitative assessment of these investments as of June 30, 2023 and determined that the decrease in unrealized losses was the result of general market conditions, including changes in interest rates driven by the Federal Reserve’s policy to reduce levels of inflation, and does not believe the declines in fair value were credit related. As of June 30, 2023, the Company had not recorded credit losses on certain AFS securities that were in an unrealized loss position due to the high quality of the investments, with investment grade ratings, and many of them issued by U.S. government agencies. As of June 30, 2023, 75% of our AFS securities are U.S. Treasury, U.S. government agency, and U.S. government-sponsored enterprise securities. 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 three months ended June 30, 2023 and June 30, 2022, nor during the six months ended June 30, 2023 and June 30, 2022. At June 30, 2023 and December 31, 2022, there were no AFS or HTM securities in nonaccrual status. All securities in the portfolio were current with their contractual principal and interest payments. At June 30, 2023 and December 31, 2022, there were no securities purchased with deterioration in credit quality since their origination. At June 30, 2023 and December 31, 2022, there were no collateral dependent AFS or HTM securities. Realized Gains and Losses The following table presents the amortized cost of securities sold with related gross realized gains and losses, as well as net realized gains or losses for the periods indicated: Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2023 2022 2023 2022 Amortized cost of AFS investment securities sold $ — $ 45,121 $ 304,182 $ 703,626 Gross realized gains $ — $ 7 $ 986 $ 13,645 Gross realized (losses) — (38) (848) (11,542) Net realized gains on sales of AFS investment securities $ — $ (31) $ 138 $ 2,103 Contractual Maturities The amortized cost and estimated fair value of investment securities at June 30, 2023, 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 $ — $ — $ 14,944 $ 13,104 $ — $ — $ — $ — $ 14,944 $ 13,104 Agency 17,140 16,989 314,680 289,909 106,988 88,101 25,150 18,856 463,958 413,855 Corporate — — 288,165 283,555 272,963 214,564 — — 561,128 498,119 Collateralized mortgage obligations 15,504 15,441 54,631 53,788 193,285 170,373 94,346 87,655 357,766 327,257 Mortgage-backed securities 27,986 27,663 — — 502,381 438,835 358,373 292,958 888,740 759,456 Total AFS investment securities 60,630 60,093 672,420 640,356 1,075,617 911,873 477,869 399,469 2,286,536 2,011,791 HTM investment securities: Municipal bonds — — 10,641 10,179 53,352 47,279 1,083,611 851,491 1,147,604 908,949 Collateralized mortgage obligations — — 132 132 — — 349,196 341,881 349,328 342,013 Mortgage-backed securities — — — — — — 224,470 191,010 224,470 191,010 Other — — — — — — 16,315 16,315 16,315 16,315 Total HTM investment securities — — 10,773 10,311 53,352 47,279 1,673,592 1,400,697 1,737,717 1,458,287 Total investment securities $ 60,630 $ 60,093 $ 683,193 $ 650,667 $ 1,128,969 $ 959,152 $ 2,151,461 $ 1,800,166 $ 4,024,253 $ 3,470,078

Loans Held for Investment

Loans Held for Investment	6 Months Ended
	Jun. 30, 2023
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: June 30, December 31, (Dollars in thousands) 2023 2022 Investor loans secured by real estate CRE non-owner-occupied $ 2,571,246 $ 2,660,321 Multifamily 5,788,030 6,112,026 Construction and land 428,287 399,034 SBA secured by real estate 38,876 42,135 Total investor loans secured by real estate 8,826,439 9,213,516 Business loans secured by real estate CRE owner-occupied 2,281,721 2,432,163 Franchise real estate secured 318,539 378,057 SBA secured by real estate 57,084 61,368 Total business loans secured by real estate 2,657,344 2,871,588 Commercial loans Commercial and industrial 1,744,763 2,160,948 Franchise non-real estate secured 351,944 404,791 SBA non-real estate secured 9,688 11,100 Total commercial loans 2,106,395 2,576,839 Retail loans Single family residential 70,993 72,997 Consumer 2,241 3,284 Total retail loans 73,234 76,281 Loans held for investment before basis adjustment (1) 13,663,412 14,738,224 Basis adjustment associated with fair value hedge (2) (53,130) (61,926) Loans held for investment 13,610,282 14,676,298 Allowance for credit losses for loans held for investment (192,333) (195,651) Loans held for investment, net $ 13,417,949 $ 14,480,647 Total unfunded loan commitments $ 2,202,647 $ 2,489,203 Loans held for sale, at lower of cost or fair value 2,184 2,643 ______________________________ (1) Includes net deferred origination fees of $142,000 and $1.9 million, and unaccreted fair value net purchase discounts of $48.4 million and $54.8 million as of June 30, 2023 and December 31, 2022, respectively. (2) Represents the basis adjustment associated with the application of hedge accounting on certain loans. Refer to Note 11 – Derivative Instruments for additional information. The Company 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 June 30, 2023 and December 31, 2022, the servicing assets totaled $2.3 million and $3.0 million, respectively, and were included in other assets in the Company’s consolidated statement 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 June 30, 2023 and December 31, 2022, 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 $334,000 as of June 30, 2023 and December 31, 2022. 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 $421.3 million at June 30, 2023 and $463.4 million at December 31, 2022, respectively. Included in those totals are multifamily loans transferred through securitization with Freddie Mac of $51.3 million and $54.2 million at June 30, 2023 and December 31, 2022, respectively, and SBA participations serviced for others of $286.3 million and $315.3 million at June 30, 2023 and December 31, 2022, respectively. Concentration of Credit Risk As of June 30, 2023, 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 $824.2 million for secured loans and $494.5 million for unsecured loans at June 30, 2023. In order to manage concentration risk, the Bank maintains a house lending limit well below these statutory maximums. At June 30, 2023, the Bank’s largest aggregate outstanding balance of loans to one borrower was $170.3 million secured by multifamily properties. 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 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 business 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 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. 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. 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 and evaluated individually to determine an appropriate ACL for the loan. The ACL for such loans is measured as the amount by which the fair value of the underlying collateral, less estimated costs to sell, is less than the amortized cost of the loan. 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 order to have the most current indication of fair value of the underlying collateral securing the loan. Additionally, once a loan is identified as collateral dependent, due to the likelihood of foreclosure, and repayment of the loan is expected to come from the eventual sale of the underlying collateral, an analysis of the underlying collateral is performed at least quarterly. Changes in the estimated fair value of the collateral are reflected in the lifetime ACL for the loan. Balances deemed to be uncollectable are promptly charged-off. However, if a loan is not considered collateral dependent and management determines that the loan no longer possesses risk characteristics similar to other loans in the loan portfolio, the loan is individually evaluated, and 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 June 30, 2023: Term Loans by Vintage (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Revolving Converted to Term During the Period Total June 30, 2023 Investor loans secured by real estate CRE non-owner-occupied Pass $ 13,775 $ 520,853 $ 599,620 $ 196,597 $ 321,542 $ 903,295 $ — $ — $ 2,555,682 Special mention — 3,847 2,570 — — — — — 6,417 Substandard — 437 — — — 8,710 — — 9,147 Multifamily Pass 73,440 1,210,300 2,095,164 739,051 858,898 798,230 403 — 5,775,486 Special mention — — — — 12,544 — — — 12,544 Construction and land Pass 45,304 227,148 137,500 7,693 4,858 5,784 — — 428,287 SBA secured by real estate Pass — 6,524 130 493 4,820 18,351 — — 30,318 Substandard — — — — 534 8,024 — — 8,558 Total investor loans secured by real estate 132,519 1,969,109 2,834,984 943,834 1,203,196 1,742,394 403 — 8,826,439 Current period gross charge-offs — — 217 — — 2,730 — — 2,947 Business loans secured by real estate CRE owner-occupied Pass 11,456 582,666 680,769 231,507 227,929 499,279 5,845 — 2,239,451 Special mention — — 2,816 — — 15,229 — — 18,045 Substandard — 10,348 — 4,251 — 9,626 — — 24,225 Franchise real estate secured Pass 7,619 39,661 129,858 28,875 16,617 78,356 — — 300,986 Special mention — 7,701 3,879 — 823 — — — 12,403 Substandard — 950 — — 3,903 297 — — 5,150 SBA secured by real estate Pass 115 9,951 8,079 2,128 5,140 26,014 — — 51,427 Substandard — — — — — 5,657 — — 5,657 Total loans secured by business real estate 19,190 651,277 825,401 266,761 254,412 634,458 5,845 — 2,657,344 Current period gross charge-offs — — 318 191 — 1,861 — — 2,370 Term Loans by Vintage (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Revolving Converted to Term During the Period Total Commercial loans Commercial and industrial Pass $ 29,948 $ 229,282 $ 198,520 $ 50,242 $ 120,448 $ 168,018 $ 856,579 $ 3,354 $ 1,656,391 Special mention — 5,152 12,709 — 561 — 21,279 55 39,756 Substandard — 15,310 3,067 694 2 1,213 14,199 14,131 48,616 Franchise non-real estate secured Pass 7,524 79,358 122,005 17,431 39,975 63,563 776 — 330,632 Special mention — 1,346 1,767 — 674 — — — 3,787 Substandard — 1,641 354 2,651 11,169 1,710 — — 17,525 SBA non-real estate secured Pass 331 3,336 352 119 1,558 2,926 — — 8,622 Substandard — 555 — 146 124 241 — — 1,066 Total commercial loans 37,803 335,980 338,774 71,283 174,511 237,671 892,833 17,540 2,106,395 Current period gross charge-offs — 282 59 5 289 36 677 — 1,348 Retail loans Single family residential Pass 20 — — 172 — 45,491 25,308 — 70,991 Substandard — — — — — 2 — — 2 Consumer loans Pass — — 3 13 8 881 1,336 — 2,241 Total retail loans 20 — 3 185 8 46,374 26,644 — 73,234 Current period gross charge-offs — — — — — 983 2 — 985 Loans held for investment before basis adjustment (1) $ 189,532 $ 2,956,366 $ 3,999,162 $ 1,282,063 $ 1,632,127 $ 2,660,897 $ 925,725 $ 17,540 $ 13,663,412 Total current period gross charge-offs — 282 594 196 289 5,610 679 — 7,650 ______________________________ (1) Excludes the basis adjustment of $53.1 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, 2022: Term Loans by Vintage (Dollars in thousands) 2022 2021 2020 2019 2018 Prior Revolving Revolving Converted to Term During the Period Total December 31, 2022 Investor loans secured by real estate CRE non-owner-occupied Pass $ 523,895 $ 607,153 $ 208,760 $ 347,889 $ 308,317 $ 651,593 $ — $ — $ 2,647,607 Special mention — — — — 7,487 — — — 7,487 Substandard — — — — 194 4,570 — 463 5,227 Multifamily Pass 1,230,359 2,187,255 786,436 889,737 263,241 732,808 — — 6,089,836 Special mention — — — 12,667 — — — — 12,667 Substandard — 6,057 — 2,723 — 743 — — 9,523 Term Loans by Vintage (Dollars in thousands) 2022 2021 2020 2019 2018 Prior Revolving Revolving Converted to Term During the Period Total December 31, 2022 Construction and land Pass 187,567 154,231 38,760 9,615 1,843 7,018 — — 399,034 SBA secured by real estate Pass 6,571 130 493 5,407 7,361 13,199 — — 33,161 Substandard — — — — 2,416 6,558 — — 8,974 Total investor loans secured by real estate 1,948,392 2,954,826 1,034,449 1,268,038 590,859 1,416,489 — 463 9,213,516 Business loans secured by real estate CRE owner-occupied Pass 593,826 718,223 242,125 240,772 114,581 448,531 5,661 — 2,363,719 Special mention 334 1,015 — — 675 327 — — 2,351 Substandard 10,838 2,541 11,970 2,403 4,676 33,665 — — 66,093 Franchise real estate secured Pass 54,654 131,541 33,513 44,229 32,815 55,893 — — 352,645 Special mention 4,891 13,145 — — — — — — 18,036 Substandard 980 — — 6,092 — 304 — — 7,376 SBA secured by real estate Pass 10,993 6,978 2,329 5,710 4,440 25,415 — — 55,865 Special mention — — — — — 118 — — 118 Substandard — — — — 1,354 4,031 — — 5,385 Total loans secured by business real estate 676,516 873,443 289,937 299,206 158,541 568,284 5,661 — 2,871,588 Commercial loans Commercial and industrial Pass 282,131 262,044 55,659 155,310 78,684 121,918 1,134,568 3,412 2,093,726 Special mention 15,105 3,567 798 — 1,864 41 9,898 — 31,273 Substandard 2,590 80 — 3,867 562 1,029 27,680 141 35,949 Franchise non-real estate secured Pass 102,542 128,030 18,486 46,027 28,664 43,486 778 — 368,013 Special mention 1,372 14,382 — 11,829 — — — — 27,583 Substandard 1,757 385 2,852 2,256 1,637 308 — — 9,195 SBA non-real estate secured Pass 3,444 435 276 1,638 633 3,124 — — 9,550 Substandard — — — 130 224 606 — 590 1,550 Total commercial loans 408,941 408,923 78,071 221,057 112,268 170,512 1,172,924 4,143 2,576,839 Retail loans Single family residential Pass — — 176 — 22 49,729 23,065 — 72,992 Substandard — — — — — 5 — — 5 Consumer loans Pass — 6 17 11 — 969 2,254 — 3,257 Substandard — — — — — 27 — — 27 Total retail loans — 6 193 11 22 50,730 25,319 — 76,281 Loans held for investment $ 3,033,849 $ 4,237,198 $ 1,402,650 $ 1,788,312 $ 861,690 $ 2,206,015 $ 1,203,904 $ 4,606 $ 14,738,224 ______________________________ (1) Excludes the basis adjustment of $61.9 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 (Dollars in thousands) Current 30-59 60-89 90+ Total June 30, 2023 Investor loans secured by real estate CRE non-owner-occupied $ 2,569,680 $ — $ — $ 1,566 $ 2,571,246 Multifamily 5,788,030 — — — 5,788,030 Construction and land 428,287 — — — 428,287 SBA secured by real estate 38,349 527 — — 38,876 Total investor loans secured by real estate 8,824,346 527 — 1,566 8,826,439 Business loans secured by real estate CRE owner-occupied 2,276,988 — — 4,733 2,281,721 Franchise real estate secured 318,539 — — — 318,539 SBA secured by real estate 55,778 — — 1,306 57,084 Total business loans secured by real estate 2,651,305 — — 6,039 2,657,344 Commercial loans Commercial and industrial 1,722,499 122 31 22,111 1,744,763 Franchise non-real estate secured 351,944 — — — 351,944 SBA not secured by real estate 9,133 — — 555 9,688 Total commercial loans 2,083,576 122 31 22,666 2,106,395 Retail loans Single family residential 70,993 — — — 70,993 Consumer loans 2,241 — — — 2,241 Total retail loans 73,234 — — — 73,234 Loans held for investment before basis adjustment (1) $ 13,632,461 $ 649 $ 31 $ 30,271 $ 13,663,412 December 31, 2022 Investor loans secured by real estate CRE non-owner-occupied $ 2,655,892 $ — $ — $ 4,429 $ 2,660,321 Multifamily 6,103,246 2,723 — 6,057 6,112,026 Construction and land 399,034 — — — 399,034 SBA secured by real estate 42,135 — — — 42,135 Total investor loans secured by real estate 9,200,307 2,723 — 10,486 9,213,516 Business loans secured by real estate CRE owner-occupied 2,424,174 1,434 — 6,555 2,432,163 Franchise real estate secured 370,984 7,073 — — 378,057 SBA secured by real estate 60,177 — 104 1,087 61,368 Total business loans secured by real estate 2,855,335 8,507 104 7,642 2,871,588 Commercial loans Commercial and industrial 2,152,302 4,657 81 3,908 2,160,948 Franchise non-real estate secured 401,199 3,592 — — 404,791 SBA not secured by real estate 10,511 — — 589 11,100 Total commercial loans 2,564,012 8,249 81 4,497 2,576,839 Retail loans Single family residential 71,940 1,057 — — 72,997 Consumer loans 3,282 2 — — 3,284 Total retail loans 75,222 1,059 — — 76,281 Loans held for investment before basis adjustment (1) $ 14,694,876 $ 20,538 $ 185 $ 22,625 $ 14,738,224 ______________________________ (1) Excludes the basis adjustment of $53.1 million and $61.9 million to the carrying amount of certain loans included in fair value hedging relationships as of June 30, 2023 and December 31, 2022, respectively. Refer to Note 11 – Derivative Instruments for additional information. 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, 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 June 30, 2023, $17.2 million of loans were individually evaluated with $4.0 million ACL attributed to such loans. At June 30, 2023, all individually evaluated loans were evaluated based on the underlying value of the collateral and none were evaluated using a discounted cash flow approach. All individually evaluated loans were on nonaccrual status at June 30, 2023. As of December 31, 2022, $30.9 million of loans were individually evaluated, and the ACL attributed to such loans totaled $1.7 million. At December 31, 2022, all individually evaluated loans were evaluated based on the underlying value of the collateral and none were evaluated using a discounted cash flow approach. All individually evaluated loans were on nonaccrual status at December 31, 2022. 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 loans. Please see Note 1 - Description of Business and Summary of Significant Accounting Policies , of our audited consolidated financial statements included in our 2022 Form 10-K for more information concerning the accounting for purchased credit deterioration (“PCD”) loans. The Company had PCD loans of $393.5 million and $422.7 million at June 30, 2023 and December 31, 2022, 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. 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 $17.2 million at June 30, 2023 and $30.9 million at December 31, 2022. The Company did not record income from the receipt of cash payments related to nonaccruing loans during the three and six months ended June 30, 2023 and June 30, 2022. The Company had seven syndicated loans to one borrower relationship totaling $17.9 million that were 90 days or more past due and still accruing at June 30, 2023. These loans are well-secured, and are in the process of modification at June 30, 2023. The Company had no loans 90 days or more past due and still accruing at December 31, 2022. 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 June 30, 2023 Investor loans secured by real estate CRE non-owner-occupied $ 1,566 $ — $ — $ — $ 1,566 $ 1,566 SBA secured by real estate 505 — — — 505 505 Total investor loans secured by real estate 2,071 — — — 2,071 2,071 Business loans secured by real estate CRE owner-occupied 8,984 — — — 8,984 8,984 SBA secured by real estate 1,306 — — — 1,306 1,306 Total business loans secured by real estate 10,290 — — — 10,290 10,290 Commercial loans Commercial and industrial 4,235 4,000 — — 4,235 235 SBA non-real estate secured 555 — — — 555 555 Total commercial loans 4,790 4,000 — — 4,790 790 Total nonaccrual loans $ 17,151 $ 4,000 $ — $ — $ 17,151 $ 13,151 December 31, 2022 Investor loans secured by real estate CRE non-owner-occupied $ 4,429 $ — $ — $ — $ 4,429 $ 4,429 Multifamily 8,780 — — — 8,780 8,780 SBA secured by real estate 533 — — — 533 533 Total investor loans secured by real estate 13,742 — — — 13,742 13,742 Business loans secured by real estate CRE owner-occupied 11,475 1,742 — — 11,475 9,733 SBA secured by real estate 1,191 — — — 1,191 1,191 Total business loans secured by real estate 12,666 1,742 — — 12,666 10,924 Commercial loans Commercial and industrial 3,908 — — — 3,908 3,908 SBA non-real estate secured 589 — — — 589 589 Total commercial loans 4,497 — — — 4,497 4,497 Total nonaccrual loans $ 30,905 $ 1,742 $ — $ — $ 30,905 $ 29,163 ______________________________ (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 June 30, 2023 or December 31, 2022. Modified Loans to Troubled Borrowers On January 1, 2023, the Company adopted ASU 2022-02, 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. 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 collective basis, as with other loans in the loan portfolio, unless management determines that such loans no longer possess risk characteristics similar to others in the loan portfolio. In those instances, the ACL for an MLTB is determined through individual evaluation. During the three months ended June 30, 2023, there were no loan modifications to borrowers experiencing financial difficulty. The following table shows the amortized cost of the MLTB by class and type of modification, as well as the percentage of the loan modified to total loans in each class at and during the period indicated: For The Six Months Ended June 30, 2023 T

Allowance for Credit Losses

Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2023
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 recognize estimates for lifetime credit losses on loans and unfunded loan commitments at the time of origination or acquisition. The recognition of credit losses at origination or acquisition 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 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 employed in the model 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 commercial real estate 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 ratios, debt service coverage, 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. The Company considers loans to be in default when they are 90 days or more past due and still accruing 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: loan-to-value ratios (“LTV”), estimated time to resolution, property size, and current and estimated future market price changes for underlying collateral. The LGD is highly dependent upon LTV ratios, and incorporates estimates for the expense associated with managing the loan 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. 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 periodically 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 June 30, 2023 includes assumptions concerning the rising interest rate environment, ongoing inflationary pressures throughout the U.S. economy, higher energy prices, the potential impact of the ongoing war between Russia and Ukraine, 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 variables, which are used in several economic scenarios. Although no one economic 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 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 a higher-risk profile 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 June 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 $ 31,715 $ (2,591) $ — $ 2,421 $ 31,545 Multifamily 57,787 (73) 1 (2,067) 55,648 Construction and land 7,672 — — 35 7,707 SBA secured by real estate 2,291 — — 40 2,331 Business loans secured by real estate CRE owner-occupied 29,334 (207) 12 (624) 28,515 Franchise real estate secured 7,790 — — (935) 6,855 SBA secured by real estate 4,415 — 80 16 4,511 Commercial loans Commercial and industrial 37,659 (225) 169 1,983 39,586 Franchise non-real estate secured 15,721 — — (1,079) 14,642 SBA non-real estate secured 401 — 59 (61) 399 Retail loans Single family residential 392 — — 63 455 Consumer loans 211 (890) — 818 139 Totals $ 195,388 $ (3,986) $ 321 $ 610 $ 192,333 Six Months Ended June 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) $ 15 $ 495 $ 31,545 Multifamily 56,334 (290) 1 (397) 55,648 Construction and land 7,114 — — 593 7,707 SBA secured by real estate 2,592 — — (261) 2,331 Business loans secured by real estate CRE owner-occupied 32,340 (2,370) 24 (1,479) 28,515 Franchise real estate secured 7,019 — — (164) 6,855 SBA secured by real estate 4,348 — 80 83 4,511 Commercial loans Commercial and industrial 35,169 (1,348) 380 5,385 39,586 Franchise non-real estate secured 16,029 — 100 (1,487) 14,642 SBA non-real estate secured 441 — 65 (107) 399 Retail loans Single family residential 352 (90) 1 192 455 Consumer loans 221 (895) 35 778 139 Totals $ 195,651 $ (7,650) $ 701 $ 3,631 $ 192,333 Three Months Ended June 30, 2022 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner occupied $ 35,974 $ — $ — $ 1,247 $ 37,221 Multifamily 54,325 — — 1,968 56,293 Construction and land 5,219 — — 217 5,436 SBA secured by real estate 3,050 — — (185) 2,865 Business loans secured by real estate CRE owner-occupied 31,891 — 4 (434) 31,461 Franchise real estate secured 7,977 — — (1,447) 6,530 SBA secured by real estate 5,195 — — (46) 5,149 Commercial loans Commercial and industrial 38,598 (5,381) 533 3,298 37,048 Franchise non-real estate secured 14,304 (448) — (732) 13,124 SBA non-real estate secured 490 — 16 (54) 452 Retail loans Single family residential 233 — 33 12 278 Consumer loans 261 (2) — (41) 218 Totals $ 197,517 $ (5,831) $ 586 $ 3,803 $ 196,075 Six Months Ended June 30, 2022 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner occupied $ 37,380 $ — $ — $ (159) $ 37,221 Multifamily 55,209 — — 1,084 56,293 Construction and land 5,211 — — 225 5,436 SBA secured by real estate 3,201 (70) — (266) 2,865 Business loans secured by real estate CRE owner-occupied 29,575 — 14 1,872 31,461 Franchise real estate secured 7,985 — — (1,455) 6,530 SBA secured by real estate 4,866 — — 283 5,149 Commercial loans Commercial and industrial 38,136 (7,560) 2,374 4,098 37,048 Franchise non-real estate secured 15,084 (448) — (1,512) 13,124 SBA non-real estate secured 565 (50) 18 (81) 452 Retail loans Single family residential 255 — 33 (10) 278 Consumer loans 285 (2) — (65) 218 Totals $ 197,752 $ (8,130) $ 2,439 $ 4,014 $ 196,075 The decrease in the ACL for loans held for investment during the three months ended June 30, 2023 of $3.1 million is reflective of $3.7 million in net charge-offs, partially offset by $610,000 in provision for credit losses. The provision for credit losses during the three months ended June 30, 2023 is largely attributed to increases associated with economic forecasts, offset by a decrease in the balance of loans held of investment. For the six months ended June 30, 2023, the ACL decreased $3.3 million. The decline in the ACL during this period is reflective of $6.9 million in net charge-offs, partially offset by $3.6 million in provision for credit losses. The provision for credit losses during the six months ended June 30, 2023 is largely attributed to increases associated with economic forecasts, as well as changes in asset quality, including specific reserves, offset by a decrease in loans held for investment. Charge-offs during the three months ended June 30, 2023 are largely attributed to one CRE non-owner occupied lending relationship and charge-offs in consumer loans. Charge-offs during the six months ended June 30, 2023 are largely attributed to one CRE non-owner occupied lending relationship and one CRE owner-occupied lending relationship. The decrease in the ACL for loans held for investment during the three months ended June 30, 2022 of $1.4 million was comprised of $5.2 million in net charge-offs, partially offset by $3.8 million in provision for credit losses. The provision for credit losses for the three months ended June 30, 2022 was reflective of higher loans held for investment, higher net charge-offs, and the impact of macroeconomic uncertainties. The decrease in the ACL for loans held for investment during the six months ended June 30, 2022 of $1.7 million can be attributed to net charge-offs of $5.7 million, partially offset by $4.0 million in provision for credit losses. Charge-offs in the second quarter of 2022 are largely attributable to one C&I 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 $24.5 million at June 30, 2023, representing an increase of $1.0 million from $23.5 million at March 31, 2023, and an increase of approximately $814,000 from $23.6 million at December 31, 2022. The provision expense for off-balance sheet commitments of $1.0 million during the three months ended June 30, 2023 is attributed to higher loss rates in certain segments of the loan portfolio, partially offset by a decline in the balance of unfunded commitments. The provision expense during the six months ended June 30, 2023 is largely attributed to higher loss rates in certain loan segments, partially offset by changes in the mix of unfunded commitments between various loan segments, and a decrease in the balance of unfunded commitments. The provision recapture for off-balance sheet commitments of $3.4 million and $3.2 million during the three and six months ended June 30, 2022, respectively, was largely due to changes in the mix of unfunded commitments between various loan segments. The following table summarizes the activities in the ACL for off-balance sheet commitments for the periods indicated: Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2023 2022 2023 2022 Beginning ACL balance $ 23,452 $ 27,508 $ 23,641 $ 27,290 Provision for credit losses on off-balance sheet commitments 1,003 (3,402) 814 (3,184) Ending ACL balance $ 24,455 $ 24,106 $ 24,455 $ 24,106

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jun. 30, 2023
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 June 30, 2023 and December 31, 2022. The Company did not record any adjustments to goodwill during the three months ended June 30, 2023 and June 30, 2022. 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. Due to the recent market volatility experienced in the banking sector, the Company assessed goodwill for impairment at June 30, 2023, by performing a quantitative assessment of goodwill as of June 30, 2023, in accordance with ASC 350-20, Intangibles - Goodwill and Other - Goodwill . The quantitative assessment was performed with the assistance of an independent third party, and the results of this assessment indicated the value of goodwill assets were not impaired as of June 30, 2023. If the recent market volatility continues, the Company may again assess goodwill for impairment prior to the fourth quarter of 2023. Other intangible assets with definite lives were $49.4 million at June 30, 2023, consisting of $47.2 million in core deposit intangibles and $2.2 million in customer relationship intangibles. At December 31, 2022, other intangibles assets were $55.6 million, consisting of $53.2 million in core deposit intangibles and $2.4 million in customer relationship intangibles. The following table summarizes the change in the balance of core deposit intangibles and customer relationship intangibles, and the related accumulated amortization for the periods indicated below: Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2023 2022 2023 2022 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 (92,795) (79,234) (89,624) (75,641) Amortization (3,055) (3,478) (6,226) (7,071) Ending balance (95,850) (82,712) (95,850) (82,712) Net intangible assets $ 49,362 $ 62,500 $ 49,362 $ 62,500 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	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Subordinated Debentures	Subordinated Debentures As of June 30, 2023, the Company had three subordinated notes with an aggregate carrying value of $331.5 million and a weighted interest rate of 5.31%, compared to $331.2 million with a weighted interest rate of 5.32% at December 31, 2022. The increase of $319,000 was primarily due to 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 June 30, 2023 December 31, 2022 Subordinated notes Subordinated notes due 2024, 5.75% per annum September 3, 2024 5.75 % $ 60,000 $ 59,850 $ 59,791 Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month LIBOR +2.5% thereafter May 15, 2029 4.875 % 125,000 123,514 123,386 Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month SOFR +5.170% thereafter June 15, 2030 5.375 % 150,000 148,159 148,027 Total subordinated debentures $ 335,000 $ 331,523 $ 331,204 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 June 2023 by KBRA. For additional information on the Company’s subordinated debentures, see “ Note 13 — Subordinated Debentures ” to the consolidated financial statements of the Company’s 2022 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	6 Months Ended
	Jun. 30, 2023
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) June 30, 2023 June 30, 2022 Basic Net income $ 57,636 $ 69,803 Less: dividends and undistributed earnings allocated to participating securities (995) (867) Net income allocated to common stockholders $ 56,641 $ 68,936 Weighted average common shares outstanding 94,166,083 93,765,264 Basic earnings per common share $ 0.60 $ 0.74 Diluted Net income allocated to common stockholders $ 56,641 $ 68,936 Weighted average common shares outstanding 94,166,083 93,765,264 Dilutive effect of share-based compensation 49,884 275,427 Weighted average diluted common shares 94,215,967 94,040,691 Diluted earnings per common share $ 0.60 $ 0.73 Six Months Ended (Dollars in thousands, except per share data) June 30, 2023 June 30, 2022 Basic Net income $ 120,198 $ 136,707 Less: dividends and undistributed earnings allocated to participating securities (1,829) (1,545) Net income allocated to common stockholders $ 118,369 $ 135,162 Weighted average common shares outstanding 94,012,799 93,633,213 Basic earnings per common share $ 1.26 $ 1.44 Diluted Net income allocated to common stockholders $ 118,369 $ 135,162 Weighted average common shares outstanding 94,012,799 93,633,213 Dilutive effect of share-based compensation 179,542 349,844 Weighted average diluted common shares 94,192,341 93,983,057 Diluted earnings per common share $ 1.26 $ 1.44

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2023
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. Opus received equity warrant assets through its lending activities as part of loan origination fees. 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. 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: June 30, 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 $ — $ 13,104 $ — $ 13,104 Agency — 413,855 — 413,855 Corporate — 498,119 — 498,119 Collateralized mortgage obligations — 327,257 — 327,257 Mortgage-backed securities — 759,456 — 759,456 Total AFS investment securities $ — $ 2,011,791 $ — $ 2,011,791 Equity securities $ 889 $ — $ — $ 889 Derivative assets: Foreign exchange contracts $ 2 $ — $ — $ 2 Interest rate swaps (1) — 6,895 — 6,895 Equity warrants — — 407 407 Total derivative assets $ 2 $ 6,895 $ 407 $ 7,304 Financial liabilities Derivative liabilities: Interest rate swaps $ — $ 12,267 $ — $ 12,267 Total derivative liabilities $ — $ 12,267 $ — $ 12,267 ______________________________ (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, 2022 Fair Value Measurement Using Total Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets AFS investment securities: U.S. Treasury $ — $ 47,017 $ — $ 47,017 Agency — 431,438 — 431,438 Corporate — 542,548 — 542,548 Collateralized mortgage obligations — 764,229 — 764,229 Mortgage-backed securities — 815,781 — 815,781 Total AFS investment securities $ — $ 2,601,013 $ — $ 2,601,013 Equity securities (1) $ 925 $ — $ — $ 13,526 Derivative assets: Foreign exchange contracts $ 1 $ — $ — $ 1 Interest rate swaps (2) — 7,053 — 7,053 Equity warrants — — 1,894 1,894 Total derivative assets $ 1 $ 7,053 $ 1,894 $ 8,948 Financial liabilities Derivative liabilities: Foreign exchange $ 1 $ — $ — $ 1 Interest rate swaps — 12,530 — 12,530 Total derivative liabilities $ 1 $ 12,530 $ — $ 12,531 ______________________________ (1) Includes equity securities that are measured at net asset value per share (or its equivalent) as a practical expedient of $12.6 million at December 31, 2022 and are excluded from the fair value hierarchy. (2) 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 Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2023 2022 2023 2022 Beginning balance $ 412 $ 1,908 $ 1,894 $ 1,889 Change in fair value (1) (5) (2) (25) 17 Net exercise — — (1,462) — Ending balance $ 407 $ 1,906 $ 407 $ 1,906 ______________________________ (1) The changes in fair value are included in other income on the consolidated statement of income. The following table presents quantitative information about Level 3 fair value measurements for assets measured at fair value on a recurring basis at the dates indicated. June 30, 2023 Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average Equity warrants $ 407 Black-Scholes Volatility 35.00% 4.87% 5.50% 35.00% 4.87% 5.50% 35.00% 4.87% 5.50% December 31, 2022 Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average Equity warrants $ 1,894 Black-Scholes Volatility 30.00% 4.32% 6.00% 35.00% 4.41% 16.00% 31.14% 4.39% 13.60% 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, 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 other real estate owned 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 and other real estate owned to determine fair value. In determining the net realizable value of the underlying collateral for individually evaluated loans, 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 June 30, 2023, 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 six months ended June 30, 2023. The following table presents our assets measured at fair value on a nonrecurring basis at the dates indicated. June 30, 2023 Fair Value Measurement Using Total (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets Other real estate owned $ — $ — $ 270 $ 270 December 31, 2022 Fair Value Measurement Using Total (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets Collateral dependent loans $ — $ — $ 3,180 $ 3,180 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. June 30, 2023 Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average Other real estate owned $ 270 Fair value of property Cost to sell 10.00% 10.00% 10.00% Total assets $ 270 December 31, 2022 Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average Commercial loans Commercial and industrial $ 3,180 Fair value of collateral Collateral discount and cost to sell 6.00% 6.00% 6.00% Total individually evaluated loans $ 3,180 ______________________________ (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. At June 30, 2023 (Dollars in thousands) Carrying Level 1 Level 2 Level 3 Estimated Assets Cash and cash equivalents $ 1,463,677 $ 1,463,677 $ — $ — $ 1,463,677 Interest-bearing time deposits with financial institutions 1,487 1,487 — — 1,487 HTM investment securities 1,737,604 — 1,458,287 — 1,458,287 AFS investment securities 2,011,791 — 2,011,791 — 2,011,791 Equity securities 889 889 — — 889 Loans held for sale 2,184 — 2,269 — 2,269 Loans held for investment, net 13,610,282 — — 12,799,845 12,799,845 Derivative assets (1) 7,304 2 6,895 407 7,304 Accrued interest receivable 70,093 — 70,093 — 70,093 Liabilities Deposit accounts $ 16,539,875 $ — $ 16,537,940 $ — $ 16,537,940 FHLB advances 800,000 — 783,889 — 783,889 Subordinated debentures 331,523 — 320,471 — 320,471 Derivative liabilities 12,267 — 12,267 — 12,267 Accrued interest payable 27,249 — 27,249 — 27,249 ______________________________ (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. At December 31, 2022 (Dollars in thousands) Carrying Level 1 Level 2 Level 3 Estimated Assets Cash and cash equivalents $ 1,101,249 $ 1,101,249 $ — $ — $ 1,101,249 Interest-bearing time deposits with financial institutions 1,734 1,734 — — 1,734 HTM investment securities 1,388,103 — 1,097,096 — 1,097,096 AFS investment securities 2,601,013 — 2,601,013 — 2,601,013 Equity securities (1) 13,526 925 — — 13,526 Loans held for sale 2,643 — 2,755 — 2,755 Loans held for investment, net 14,676,298 — — 13,846,403 13,846,403 Derivative assets (2) 8,948 1 7,053 1,894 8,948 Accrued interest receivable 73,784 — 73,784 — 73,784 Liabilities Deposit accounts $ 17,352,401 $ — $ 17,334,219 $ — $ 17,334,219 FHLB advances 1,000,000 — 982,695 — 982,695 Subordinated debentures 331,204 — 327,609 — 327,609 Derivative liabilities 12,531 1 12,530 — 12,531 Accrued interest payable 14,661 — 14,661 — 14,661 ______________________________ (1) Includes equity securities that are measured at net asset value per share (or its equivalent) as a practical expedient of $12.6 million at December 31, 2022 and are excluded from the fair value hierarchy. (2) 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	6 Months Ended
	Jun. 30, 2023
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 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 in interest income in the Company’s consolidated statements of income. At June 30, 2023 and December 31, 2022, interest rate swaps with an aggregate notional amount of $1.20 billion 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) June 30, 2023 December 31, 2022 June 30, 2023 December 31, 2022 Loans held for investment (1) $ 1,146,870 $ 1,138,074 $ (53,130) $ (61,926) Total $ 1,146,870 $ 1,138,074 $ (53,130) $ (61,926) ______________________________ (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 June 30, 2023 and December 31, 2022, the amortized cost basis of the closed portfolios used in these hedging relationships was $3.14 billion and $3.35 billion, respectively, the cumulative basis adjustments associated with these hedging relationships was $(53.1) million and $(61.9) million, respectively; and the amounts of the designated hedged items were $1.20 billion and $1.20 billion, respectively. 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 had 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 balance sheet. Changes in the fair value of these swaps, which occur due to changes in interest rates, are recorded in the Company’s income statement as a component of noninterest income. 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. Opus received equity warrant assets through its lending activities, which were accounted for as loan origination fees. 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. The Company no longer has loans associated with these borrowers. Changes in the fair value of the warrants are recognized as a component of noninterest income with a corresponding offset within other assets. 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: June 30, 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 $ 1,200,000 $ 55,428 $ — $ — Total derivative designated as hedging instruments 1,200,000 55,428 — — Derivative instruments not designated as hedging instruments: Foreign exchange contracts 76 2 283 — Interest rate swaps contracts 109,055 12,157 109,055 12,158 Equity warrants — 407 — — Total derivative not designated as hedging instruments 109,131 12,566 109,338 12,158 Total derivatives $ 1,309,131 67,994 $ 109,338 12,158 Netting adjustments - cleared positions (1) 60,690 109 Total derivatives in the Balance Sheet $ 7,304 $ 12,267 ______________________________ (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. December 31, 2022 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 $ 900,000 $ 63,710 $ 300,000 $ 72 Total derivative designated as hedging instruments 900,000 63,710 300,000 72 Derivative instruments not designated as hedging instruments: Foreign exchange contracts 22 1 143 1 Interest rate swaps contracts 112,124 12,524 112,124 12,525 Equity warrants — 1,894 — — Total derivative not designated as hedging instruments 112,146 14,419 112,267 12,526 Total derivatives $ 1,012,146 $ 78,129 $ 412,267 $ 12,598 Netting adjustments - cleared positions (1) 69,181 67 Total derivatives in the Balance Sheet $ 8,948 $ 12,531 ______________________________ (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 Six Months Ended (Dollars in thousands) Location of Gain (Loss) Recognized in Income on Derivative Instruments June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Gain (loss) on fair value hedging relationships: Hedged items Interest Income $ (3,125) $ (11,866) $ 8,796 $ (45,790) Derivatives designated as hedging instruments Interest Income 12,896 12,082 9,310 44,339 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 Six Months Ended Derivatives Not Designated as Hedging Instruments: Location of Gain (Loss) Recognized in Income on Derivative Instruments June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Foreign exchange contracts Other income $ 263 $ 77 $ 483 $ 123 Interest rate products Other income — 2 — 3 Equity warrants Other income (535) (2) (786) 17 Total $ (272) $ 77 $ (303) $ 143

Balance Sheet Offsetting

Balance Sheet Offsetting	6 Months Ended
	Jun. 30, 2023
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 Company elected to account for centrally-cleared derivative contracts on a gross basis, even when the right for setoff are in place. However, for derivative contracts cleared through certain central clearing parties, the fair value of the respective derivative contracts is reported net of the variation margin payments. 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) June 30, 2023 Derivative assets: Interest rate swaps $ 6,895 $ — $ 6,895 $ — $ (5,330) $ 1,565 Total $ 6,895 $ — $ 6,895 $ — $ (5,330) $ 1,565 Derivative liabilities: Interest rate swaps $ 12,267 $ — $ 12,267 $ — $ — $ 12,267 Total $ 12,267 $ — $ 12,267 $ — $ — $ 12,267 December 31, 2022 Derivative assets: Interest rate swaps $ 7,053 $ — $ 7,053 $ — $ (5,440) $ 1,613 Total $ 7,053 $ — $ 7,053 $ — $ (5,440) $ 1,613 Derivative liabilities: Interest rate swaps $ 12,530 $ — $ 12,530 $ — $ — $ 12,530 Total $ 12,530 $ — $ 12,530 $ — $ — $ 12,530 ______________________________ (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	6 Months Ended
	Jun. 30, 2023
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 June 30, 2023 and December 31, 2022, 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 June 30, 2023 and December 31, 2022 that relate to variable interests in non-consolidated VIEs. June 30, 2023 December 31, 2022 (Dollars in thousands) Maximum Loss Assets Liabilities Maximum Loss Assets Liabilities Multifamily loan securitization: Investment securities (1) $ 51,301 $ 51,301 $ — $ 56,784 $ 56,784 $ — Reimbursement obligation (2) 50,901 — 334 50,901 — 334 Affordable housing partnership: Other investments (3) 53,639 76,070 — 60,531 75,959 — Unfunded equity commitments (2) — — 22,432 — — 15,428 Total $ 155,841 $ 127,371 $ 22,766 $ 168,216 $ 132,743 $ 15,762 ______________________________ (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 June 30, 2023. 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. Based upon our analysis of quantitative and qualitative data over the underlying loans included in the securitization pool, as of June 30, 2023 and December 31, 2022, our reserve for estimated losses with respect to the reimbursement obligation was $334,000. 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.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Quarterly Cash Dividend On July 25, 2023, the Corporation’s Board of Directors declared a cash dividend of $0.33 per share, payable on August 14, 2023 to stockholders of record as of August 7, 2023. Fair Value Hedges On July 12, 2023, as part of its interest rate sensitivity management, the Company entered into two $150.0 million in notional amount, $300.0 million in aggregate, of 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 two interest rate swaps are structured as 15-month and 18-month terms, respectively, and designated as fair value hedges using the portfolio layer method. Under the swap agreement, 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.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pay vs Performance Disclosure
Net income	$ 57,636	$ 69,803	$ 120,198	$ 136,707

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2023
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)	6 Months Ended
	Jun. 30, 2023
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 six months ended June 30, 2023 are not necessarily indicative of the results that may be expected for any other interim period or the full year ending December 31, 2023. 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, 2022 (the “2022 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 2023 In March 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2022-02, Financial Instruments - Credit Losses (Topic 326) Troubled Debt Restructurings and Vintage Disclosures . The FASB issued this Update in response to feedback the FASB received from various stakeholders in its post-implementation review process related to the issuance of ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which was effective for the Company on January 1, 2020. The amendments in this Update include the elimination of accounting guidance for troubled debt restructurings (“TDRs”) in Subtopic 310-40 - Receivables - Troubled Debt Restructurings by Creditors , and introduce new disclosures and enhance existing disclosures concerning certain loan refinancings and restructurings when a borrower is experiencing financial difficulty. Under the provisions of this Update, an entity must determine whether a modification results in a new loan or the continuation of an existing loan. Further, the amendments in this Update require that a public business entity disclose current period gross charge-offs on financing receivables within the scope of ASC 326-20, Financial Instruments - Credit Losses - Measured at Amortized Cost , by year of origination and class of financing receivable. The amendments in this Update became effective for the Company on January 1, 2023 for all interim and annual periods. The adoption of the provisions in this Update are applied prospectively and have resulted in additional disclosures concerning modifications of loans to borrowers experiencing financial difficulty, as well as disaggregated disclosure of charge-offs on loans. Please also see Note 5 – Loans Held for Investment for added disclosure concerning modifications of loans to borrowers experiencing financial difficulty, as well as current period gross charge-offs on financing receivables within by year of origination and class of financing receivable. In March 2022, the FASB issued ASU 2022-01, Derivatives and Hedging (Topic 815) Fair Value Hedging - Portfolio Layer Method . The amendments in this Update make targeted improvements to fair value hedge accounting and more specifically to the last-of-layer hedge accounting method. This Update expands the last-of-layer hedge accounting method to allow for multiple hedged layers to be designated for a single closed portfolio of prepayable financial assets, and renames this accounting method the “portfolio layer method.” The provisions of this Update also include: (i) expanding the scope of the portfolio layer method to nonprepayable financial assets, (ii) specifying that eligible hedging instruments in a single layer hedge may include spot-starting or forward-starting constant-notional or amortizing-notional swaps and that the number of hedged layers corresponds with the number of hedges designated, (iii) specifies that an entity hedging multiple amounts in a closed portfolio using a single amortizing-notional swap is executing a single-layer hedge, (iv) provides additional guidance on the accounting for and disclosure of hedge basis adjustments resulting from a fair value hedge under the portfolio layer method by requiring such basis adjustments be maintained at the portfolio level and not allocated to individual assets, and to disclose basis adjustments as a reconciling item in certain disclosures, such as those for loans, and (v) specifies that an entity is to exclude hedge basis adjustments in the determination of credit losses on the assets within the closed portfolio. The provisions of this Update became effective for the Company on January 1, 2023 for all interim and annual periods. The adoption of the provisions in this Update did not have a material impact on the Company’s consolidated financial statements. Please also see Note 11 – Derivative Instruments , for disclosure concerning the Company’s portfolio layer method fair value hedges. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848)—Facilitation of the Effects of Reference Rate Reform on Financial Reporting. In response to concerns about structural risks of Interbank Offered Rates (“IBORs”), and particularly, the risk of cessation of the London Interbank Offered Rate (“LIBOR”), regulators around the world have undertaken reference rate reform initiatives to identify alternative reference rates that are more observable or transaction-based and less susceptible to manipulation. The amendments in this Update provide optional guidance for a limited time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting as well as optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this Update apply only to contracts and hedging relationships that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022. The amendments in this Update are elective and become effective upon issuance for all entities. An entity may elect to apply the amendments in this Update to eligible hedging relationships existing as of the beginning of the interim period that includes March 12, 2020 and to new eligible hedging relationships entered into after the beginning of the interim period that includes March 12, 2020. The Company has not entered into any hedging related transactions that reference LIBOR or another reference rate that is expected to be discontinued, and as such, the amendments included in this Update have not had an impact on the Company’s consolidated financial statements. The use of LIBOR was discontinued after June 30, 2023. In anticipation of this, the Company previously created a cross-functional working group to manage the transition away from LIBOR. This working group was comprised of senior leadership and staff from functional areas that include: finance, treasury, lending, loan servicing, enterprise risk management, information technology, legal, and other internal stakeholders integral to the Bank’s transition away from LIBOR. The working group monitored developments related to transition and uncertainty surrounding reference rate reform and guided the Bank’s response. The working group performed regular assessments of the population of financial instruments that referenced LIBOR and worked to transition such instruments away from LIBOR. The working group also worked to confirm the Bank’s loan documents that referenced LIBOR have been appropriately amended, ensuring that our internal systems were prepared for the transition, and managed the transition process with our customers. The Company has chosen to use the Secured Overnight Financing Rate (“SOFR”) as an alternative to LIBOR. However, the Company may also use other alternative reference rates, such as the Constant Maturity Treasury index and Prime rate based on the individual needs of our customers as well as the types of credit being extended. Recent Accounting Guidance Not Yet Effective In March 2023, the FASB issued ASU 2023-01, Leases (Topic 842), Common Control Arrangements . The amendments in this Update clarify the accounting for leasehold improvements associated with common control leases. This Update has been issued in order to address current diversity in practice associated with the accounting for leasehold improvements associated with a lease between entities under common control. The amendments in this Update apply to all lessees that are a party to a lease between entities under common control in which there are leasehold improvements. The amendments in this Update are effective for interim and annual periods beginning after December 15, 2023. The Company has evaluated the provisions of this Update, and does not anticipate the adoption will have a material impact on the Company’s consolidated financial statements. In March 2023, the FASB issued ASU 2023-02, Investments - Equity Method and Joint Ventures (Topic 323), Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method, a consensus of the Emerging Issues Task Force . 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 are effective for the Company for interim and annual periods beginning after December 15, 2023. Early adoption is permitted. The Company is currently evaluating the impact of this Update on its consolidated financial statements.
Modified Loans to Borrowers Experiencing Financial Difficulty	Modified Loans to Borrowers Experiencing Financial Difficulty. Infrequently, the Company makes modifications to certain loans 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. The Company also refers to these modifications as modified loans to troubled borrowers (“MLTB”). Modifications may include: changes in the amortization terms of the loan, reductions in interest rates, acceptance of interest only payments, and, in very limited cases, reductions to the outstanding loan balance. Such loans are typically placed on nonaccrual status when there is doubt concerning the full repayment of principal and interest or the loan has been in default for a period of 90 days or more. Such loans may be returned to accrual status when all contractual amounts past due have been brought current, and the borrower’s performance under the modified terms of the loan agreement and the ultimate collectability of all contractual amounts due under the modified terms is no longer in doubt. The Company typically measures the allowance for credit losses (“ACL”) on MLTB on an individual basis when the loans are deemed to no longer share risk characteristics that are similar with other loans in the portfolio. The determination of the ACL for these loans is based on a discounted cash flow approach for both those measured collectively and individually, unless the loan is deemed collateral dependent, which requires measurement of the ACL based on the estimated expected fair value of the underlying collateral, less costs to sell. GAAP requires the Company to make certain disclosures related to these loans, including certain types of modifications, as well as how such loans have performed since their modifications. Please see Note 5 – Loans Held for Investment for additional information concerning modified loans to troubled borrowers.
Other Real Estate Owned	Other Real Estate Owned (“OREO”) . Real estate properties acquired through, or in lieu of foreclosure are recorded at fair value, less cost to sell, with any excess of the loan’s amortized cost balance over the fair value of the property recorded as a charge against the ACL. The Company obtains an appraisal and/or market valuation on all other real estate owned at the time of possession. After foreclosure, valuations are periodically performed by management. Any subsequent declines in fair value are recorded as a charge to noninterest expense in current period earnings with a corresponding write-down to the asset. All legal fees and direct costs, including foreclosure and other related costs, are expensed as incurred.
Use of Estimates	Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods presented. Actual results could differ from those 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 recognize estimates for lifetime credit losses on loans and unfunded loan commitments at the time of origination or acquisition. The recognition of credit losses at origination or acquisition 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 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 employed in the model 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 commercial real estate 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 ratios, debt service coverage, 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. The Company considers loans to be in default when they are 90 days or more past due and still accruing 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: loan-to-value ratios (“LTV”), estimated time to resolution, property size, and current and estimated future market price changes for underlying collateral. The LGD is highly dependent upon LTV ratios, and incorporates estimates for the expense associated with managing the loan 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. 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 periodically 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 June 30, 2023 includes assumptions concerning the rising interest rate environment, ongoing inflationary pressures throughout the U.S. economy, higher energy prices, the potential impact of the ongoing war between Russia and Ukraine, 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 variables, which are used in several economic scenarios. Although no one economic 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 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.
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. Opus received equity warrant assets through its lending activities as part of loan origination fees. 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. 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, 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 other real estate owned 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 and other real estate owned to determine fair value. In determining the net realizable value of the underlying collateral for individually evaluated loans, 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)	6 Months Ended
	Jun. 30, 2023
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: June 30, 2023 U.S. Treasury $ 14,944 $ — $ (1,840) $ 13,104 Agency 463,958 — (50,103) 413,855 Corporate 561,128 104 (63,113) 498,119 Collateralized mortgage obligations 357,766 — (30,509) 327,257 Mortgage-backed securities 888,740 — (129,284) 759,456 Total AFS investment securities $ 2,286,536 $ 104 $ (274,849) $ 2,011,791 December 31, 2022 U.S. Treasury $ 49,156 $ — $ (2,139) $ 47,017 Agency 485,331 — (53,893) 431,438 Corporate 586,652 — (44,104) 542,548 Collateralized mortgage obligations 829,928 — (65,699) 764,229 Mortgage-backed securities 953,678 — (137,897) 815,781 Total AFS investment securities $ 2,904,745 $ — $ (303,732) $ 2,601,013 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: June 30, 2023 Municipal bonds $ 1,147,604 $ (113) $ 1,147,491 $ — $ (238,542) $ 908,949 Collateralized mortgage obligations 349,328 — 349,328 70 (7,385) 342,013 Mortgage-backed securities 224,470 — 224,470 — (33,460) 191,010 Other 16,315 — 16,315 — — 16,315 Total HTM investment securities $ 1,737,717 $ (113) $ 1,737,604 $ 70 $ (279,387) $ 1,458,287 December 31, 2022 Municipal bonds $ 1,148,055 $ (43) $ 1,148,012 $ 44 $ (257,430) $ 890,626 Mortgage-backed securities 231,692 — 231,692 — (33,621) 198,071 Other 8,399 — 8,399 — — 8,399 Total HTM investment securities $ 1,388,146 $ (43) $ 1,388,103 $ 44 $ (291,051) $ 1,097,096
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 has not been recorded as of the dates indicated, aggregated by investment category and length of time in a continuous loss position. June 30, 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 — $ — $ — 1 $ 13,104 $ (1,840) 1 $ 13,104 $ (1,840) Agency 4 43,105 (895) 37 370,751 (49,208) 41 413,856 (50,103) Corporate 2 26,068 (3,932) 50 457,013 (59,181) 52 483,081 (63,113) Collateralized mortgage obligations 4 69,635 (991) 49 257,622 (29,518) 53 327,257 (30,509) Mortgage-backed securities. 2 27,663 (323) 78 731,793 (128,961) 80 759,456 (129,284) Total AFS investment securities 12 $ 166,471 $ (6,141) 215 $ 1,830,283 $ (268,708) 227 $ 1,996,754 $ (274,849) December 31, 2022 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 5 $ 33,982 $ (237) 1 $ 13,036 $ (1,902) 6 $ 47,018 $ (2,139) Agency 8 79,895 (1,265) 35 351,543 (52,628) 43 431,438 (53,893) Corporate 35 327,984 (20,840) 21 214,565 (23,264) 56 542,549 (44,104) Collateralized mortgage obligations 41 522,955 (33,318) 40 241,229 (32,381) 81 764,184 (65,699) Mortgage-backed securities 13 91,762 (6,987) 68 724,019 (130,910) 81 815,781 (137,897) Total AFS investment securities 102 $ 1,056,578 $ (62,647) 165 $ 1,544,392 $ (241,085) 267 $ 2,600,970 $ (303,732)
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 allowance for credit losses on the Company's HTM debt securities as of and for the periods indicated: Three Months Ended June 30, 2023 (Dollars in thousands) Balance, March 31, 2023 Provision for Credit Losses Balance, June 30, 2023 HTM investment securities: Municipal bonds $ 227 $ (114) $ 113 Three Months Ended June 30, 2022 (Dollars in thousands) Balance, March 31, 2022 Provision for Credit Losses Balance, June 30, 2022 HTM investment securities: Municipal bonds $ 41 $ 68 $ 109 Six Months Ended June 30, 2023 (Dollars in thousands) Balance, December 31, 2022 Provision for Credit Losses Balance, June 30, 2023 HTM investment securities: Municipal bonds $ 43 $ 70 $ 113 Six Months Ended June 30, 2022 (Dollars in thousands) Balance, December 31, 2021 Provision for Credit Losses Balance, June 30, 2022 HTM investment securities: Municipal bonds $ 22 $ 87 $ 109
Schedule of Realized Gain (Loss) on Investments	The following table presents the amortized cost of securities sold with related gross realized gains and losses, as well as net realized gains or losses for the periods indicated: Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2023 2022 2023 2022 Amortized cost of AFS investment securities sold $ — $ 45,121 $ 304,182 $ 703,626 Gross realized gains $ — $ 7 $ 986 $ 13,645 Gross realized (losses) — (38) (848) (11,542) Net realized gains on sales of AFS investment securities $ — $ (31) $ 138 $ 2,103
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 June 30, 2023, 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 $ — $ — $ 14,944 $ 13,104 $ — $ — $ — $ — $ 14,944 $ 13,104 Agency 17,140 16,989 314,680 289,909 106,988 88,101 25,150 18,856 463,958 413,855 Corporate — — 288,165 283,555 272,963 214,564 — — 561,128 498,119 Collateralized mortgage obligations 15,504 15,441 54,631 53,788 193,285 170,373 94,346 87,655 357,766 327,257 Mortgage-backed securities 27,986 27,663 — — 502,381 438,835 358,373 292,958 888,740 759,456 Total AFS investment securities 60,630 60,093 672,420 640,356 1,075,617 911,873 477,869 399,469 2,286,536 2,011,791 HTM investment securities: Municipal bonds — — 10,641 10,179 53,352 47,279 1,083,611 851,491 1,147,604 908,949 Collateralized mortgage obligations — — 132 132 — — 349,196 341,881 349,328 342,013 Mortgage-backed securities — — — — — — 224,470 191,010 224,470 191,010 Other — — — — — — 16,315 16,315 16,315 16,315 Total HTM investment securities — — 10,773 10,311 53,352 47,279 1,673,592 1,400,697 1,737,717 1,458,287 Total investment securities $ 60,630 $ 60,093 $ 683,193 $ 650,667 $ 1,128,969 $ 959,152 $ 2,151,461 $ 1,800,166 $ 4,024,253 $ 3,470,078

Loans Held for Investment (Tabl

Loans Held for Investment (Tables)	6 Months Ended
	Jun. 30, 2023
Receivables [Abstract]
Schedule of Components of Loans Held for Investment	The following table presents the composition of the loan portfolio for the periods indicated: June 30, December 31, (Dollars in thousands) 2023 2022 Investor loans secured by real estate CRE non-owner-occupied $ 2,571,246 $ 2,660,321 Multifamily 5,788,030 6,112,026 Construction and land 428,287 399,034 SBA secured by real estate 38,876 42,135 Total investor loans secured by real estate 8,826,439 9,213,516 Business loans secured by real estate CRE owner-occupied 2,281,721 2,432,163 Franchise real estate secured 318,539 378,057 SBA secured by real estate 57,084 61,368 Total business loans secured by real estate 2,657,344 2,871,588 Commercial loans Commercial and industrial 1,744,763 2,160,948 Franchise non-real estate secured 351,944 404,791 SBA non-real estate secured 9,688 11,100 Total commercial loans 2,106,395 2,576,839 Retail loans Single family residential 70,993 72,997 Consumer 2,241 3,284 Total retail loans 73,234 76,281 Loans held for investment before basis adjustment (1) 13,663,412 14,738,224 Basis adjustment associated with fair value hedge (2) (53,130) (61,926) Loans held for investment 13,610,282 14,676,298 Allowance for credit losses for loans held for investment (192,333) (195,651) Loans held for investment, net $ 13,417,949 $ 14,480,647 Total unfunded loan commitments $ 2,202,647 $ 2,489,203 Loans held for sale, at lower of cost or fair value 2,184 2,643 ______________________________ (1) Includes net deferred origination fees of $142,000 and $1.9 million, and unaccreted fair value net purchase discounts of $48.4 million and $54.8 million as of June 30, 2023 and December 31, 2022, respectively. (2) Represents the basis adjustment associated with the application of hedge accounting on certain loans. Refer to Note 11 – Derivative Instruments for additional information.
Summary of Loan Portfolio by the Company's 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 June 30, 2023: Term Loans by Vintage (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Revolving Converted to Term During the Period Total June 30, 2023 Investor loans secured by real estate CRE non-owner-occupied Pass $ 13,775 $ 520,853 $ 599,620 $ 196,597 $ 321,542 $ 903,295 $ — $ — $ 2,555,682 Special mention — 3,847 2,570 — — — — — 6,417 Substandard — 437 — — — 8,710 — — 9,147 Multifamily Pass 73,440 1,210,300 2,095,164 739,051 858,898 798,230 403 — 5,775,486 Special mention — — — — 12,544 — — — 12,544 Construction and land Pass 45,304 227,148 137,500 7,693 4,858 5,784 — — 428,287 SBA secured by real estate Pass — 6,524 130 493 4,820 18,351 — — 30,318 Substandard — — — — 534 8,024 — — 8,558 Total investor loans secured by real estate 132,519 1,969,109 2,834,984 943,834 1,203,196 1,742,394 403 — 8,826,439 Current period gross charge-offs — — 217 — — 2,730 — — 2,947 Business loans secured by real estate CRE owner-occupied Pass 11,456 582,666 680,769 231,507 227,929 499,279 5,845 — 2,239,451 Special mention — — 2,816 — — 15,229 — — 18,045 Substandard — 10,348 — 4,251 — 9,626 — — 24,225 Franchise real estate secured Pass 7,619 39,661 129,858 28,875 16,617 78,356 — — 300,986 Special mention — 7,701 3,879 — 823 — — — 12,403 Substandard — 950 — — 3,903 297 — — 5,150 SBA secured by real estate Pass 115 9,951 8,079 2,128 5,140 26,014 — — 51,427 Substandard — — — — — 5,657 — — 5,657 Total loans secured by business real estate 19,190 651,277 825,401 266,761 254,412 634,458 5,845 — 2,657,344 Current period gross charge-offs — — 318 191 — 1,861 — — 2,370 Term Loans by Vintage (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Revolving Converted to Term During the Period Total Commercial loans Commercial and industrial Pass $ 29,948 $ 229,282 $ 198,520 $ 50,242 $ 120,448 $ 168,018 $ 856,579 $ 3,354 $ 1,656,391 Special mention — 5,152 12,709 — 561 — 21,279 55 39,756 Substandard — 15,310 3,067 694 2 1,213 14,199 14,131 48,616 Franchise non-real estate secured Pass 7,524 79,358 122,005 17,431 39,975 63,563 776 — 330,632 Special mention — 1,346 1,767 — 674 — — — 3,787 Substandard — 1,641 354 2,651 11,169 1,710 — — 17,525 SBA non-real estate secured Pass 331 3,336 352 119 1,558 2,926 — — 8,622 Substandard — 555 — 146 124 241 — — 1,066 Total commercial loans 37,803 335,980 338,774 71,283 174,511 237,671 892,833 17,540 2,106,395 Current period gross charge-offs — 282 59 5 289 36 677 — 1,348 Retail loans Single family residential Pass 20 — — 172 — 45,491 25,308 — 70,991 Substandard — — — — — 2 — — 2 Consumer loans Pass — — 3 13 8 881 1,336 — 2,241 Total retail loans 20 — 3 185 8 46,374 26,644 — 73,234 Current period gross charge-offs — — — — — 983 2 — 985 Loans held for investment before basis adjustment (1) $ 189,532 $ 2,956,366 $ 3,999,162 $ 1,282,063 $ 1,632,127 $ 2,660,897 $ 925,725 $ 17,540 $ 13,663,412 Total current period gross charge-offs — 282 594 196 289 5,610 679 — 7,650 ______________________________ (1) Excludes the basis adjustment of $53.1 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, 2022: Term Loans by Vintage (Dollars in thousands) 2022 2021 2020 2019 2018 Prior Revolving Revolving Converted to Term During the Period Total December 31, 2022 Investor loans secured by real estate CRE non-owner-occupied Pass $ 523,895 $ 607,153 $ 208,760 $ 347,889 $ 308,317 $ 651,593 $ — $ — $ 2,647,607 Special mention — — — — 7,487 — — — 7,487 Substandard — — — — 194 4,570 — 463 5,227 Multifamily Pass 1,230,359 2,187,255 786,436 889,737 263,241 732,808 — — 6,089,836 Special mention — — — 12,667 — — — — 12,667 Substandard — 6,057 — 2,723 — 743 — — 9,523 Term Loans by Vintage (Dollars in thousands) 2022 2021 2020 2019 2018 Prior Revolving Revolving Converted to Term During the Period Total December 31, 2022 Construction and land Pass 187,567 154,231 38,760 9,615 1,843 7,018 — — 399,034 SBA secured by real estate Pass 6,571 130 493 5,407 7,361 13,199 — — 33,161 Substandard — — — — 2,416 6,558 — — 8,974 Total investor loans secured by real estate 1,948,392 2,954,826 1,034,449 1,268,038 590,859 1,416,489 — 463 9,213,516 Business loans secured by real estate CRE owner-occupied Pass 593,826 718,223 242,125 240,772 114,581 448,531 5,661 — 2,363,719 Special mention 334 1,015 — — 675 327 — — 2,351 Substandard 10,838 2,541 11,970 2,403 4,676 33,665 — — 66,093 Franchise real estate secured Pass 54,654 131,541 33,513 44,229 32,815 55,893 — — 352,645 Special mention 4,891 13,145 — — — — — — 18,036 Substandard 980 — — 6,092 — 304 — — 7,376 SBA secured by real estate Pass 10,993 6,978 2,329 5,710 4,440 25,415 — — 55,865 Special mention — — — — — 118 — — 118 Substandard — — — — 1,354 4,031 — — 5,385 Total loans secured by business real estate 676,516 873,443 289,937 299,206 158,541 568,284 5,661 — 2,871,588 Commercial loans Commercial and industrial Pass 282,131 262,044 55,659 155,310 78,684 121,918 1,134,568 3,412 2,093,726 Special mention 15,105 3,567 798 — 1,864 41 9,898 — 31,273 Substandard 2,590 80 — 3,867 562 1,029 27,680 141 35,949 Franchise non-real estate secured Pass 102,542 128,030 18,486 46,027 28,664 43,486 778 — 368,013 Special mention 1,372 14,382 — 11,829 — — — — 27,583 Substandard 1,757 385 2,852 2,256 1,637 308 — — 9,195 SBA non-real estate secured Pass 3,444 435 276 1,638 633 3,124 — — 9,550 Substandard — — — 130 224 606 — 590 1,550 Total commercial loans 408,941 408,923 78,071 221,057 112,268 170,512 1,172,924 4,143 2,576,839 Retail loans Single family residential Pass — — 176 — 22 49,729 23,065 — 72,992 Substandard — — — — — 5 — — 5 Consumer loans Pass — 6 17 11 — 969 2,254 — 3,257 Substandard — — — — — 27 — — 27 Total retail loans — 6 193 11 22 50,730 25,319 — 76,281 Loans held for investment $ 3,033,849 $ 4,237,198 $ 1,402,650 $ 1,788,312 $ 861,690 $ 2,206,015 $ 1,203,904 $ 4,606 $ 14,738,224 ______________________________ (1) Excludes the basis adjustment of $61.9 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 (Dollars in thousands) Current 30-59 60-89 90+ Total June 30, 2023 Investor loans secured by real estate CRE non-owner-occupied $ 2,569,680 $ — $ — $ 1,566 $ 2,571,246 Multifamily 5,788,030 — — — 5,788,030 Construction and land 428,287 — — — 428,287 SBA secured by real estate 38,349 527 — — 38,876 Total investor loans secured by real estate 8,824,346 527 — 1,566 8,826,439 Business loans secured by real estate CRE owner-occupied 2,276,988 — — 4,733 2,281,721 Franchise real estate secured 318,539 — — — 318,539 SBA secured by real estate 55,778 — — 1,306 57,084 Total business loans secured by real estate 2,651,305 — — 6,039 2,657,344 Commercial loans Commercial and industrial 1,722,499 122 31 22,111 1,744,763 Franchise non-real estate secured 351,944 — — — 351,944 SBA not secured by real estate 9,133 — — 555 9,688 Total commercial loans 2,083,576 122 31 22,666 2,106,395 Retail loans Single family residential 70,993 — — — 70,993 Consumer loans 2,241 — — — 2,241 Total retail loans 73,234 — — — 73,234 Loans held for investment before basis adjustment (1) $ 13,632,461 $ 649 $ 31 $ 30,271 $ 13,663,412 December 31, 2022 Investor loans secured by real estate CRE non-owner-occupied $ 2,655,892 $ — $ — $ 4,429 $ 2,660,321 Multifamily 6,103,246 2,723 — 6,057 6,112,026 Construction and land 399,034 — — — 399,034 SBA secured by real estate 42,135 — — — 42,135 Total investor loans secured by real estate 9,200,307 2,723 — 10,486 9,213,516 Business loans secured by real estate CRE owner-occupied 2,424,174 1,434 — 6,555 2,432,163 Franchise real estate secured 370,984 7,073 — — 378,057 SBA secured by real estate 60,177 — 104 1,087 61,368 Total business loans secured by real estate 2,855,335 8,507 104 7,642 2,871,588 Commercial loans Commercial and industrial 2,152,302 4,657 81 3,908 2,160,948 Franchise non-real estate secured 401,199 3,592 — — 404,791 SBA not secured by real estate 10,511 — — 589 11,100 Total commercial loans 2,564,012 8,249 81 4,497 2,576,839 Retail loans Single family residential 71,940 1,057 — — 72,997 Consumer loans 3,282 2 — — 3,284 Total retail loans 75,222 1,059 — — 76,281 Loans held for investment before basis adjustment (1) $ 14,694,876 $ 20,538 $ 185 $ 22,625 $ 14,738,224 ______________________________ (1) Excludes the basis adjustment of $53.1 million and $61.9 million to the carrying amount of certain loans included in fair value hedging relationships as of June 30, 2023 and December 31, 2022, respectively. Refer to Note 11 – Derivative Instruments for additional information.
Summary 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 June 30, 2023 Investor loans secured by real estate CRE non-owner-occupied $ 1,566 $ — $ — $ — $ 1,566 $ 1,566 SBA secured by real estate 505 — — — 505 505 Total investor loans secured by real estate 2,071 — — — 2,071 2,071 Business loans secured by real estate CRE owner-occupied 8,984 — — — 8,984 8,984 SBA secured by real estate 1,306 — — — 1,306 1,306 Total business loans secured by real estate 10,290 — — — 10,290 10,290 Commercial loans Commercial and industrial 4,235 4,000 — — 4,235 235 SBA non-real estate secured 555 — — — 555 555 Total commercial loans 4,790 4,000 — — 4,790 790 Total nonaccrual loans $ 17,151 $ 4,000 $ — $ — $ 17,151 $ 13,151 December 31, 2022 Investor loans secured by real estate CRE non-owner-occupied $ 4,429 $ — $ — $ — $ 4,429 $ 4,429 Multifamily 8,780 — — — 8,780 8,780 SBA secured by real estate 533 — — — 533 533 Total investor loans secured by real estate 13,742 — — — 13,742 13,742 Business loans secured by real estate CRE owner-occupied 11,475 1,742 — — 11,475 9,733 SBA secured by real estate 1,191 — — — 1,191 1,191 Total business loans secured by real estate 12,666 1,742 — — 12,666 10,924 Commercial loans Commercial and industrial 3,908 — — — 3,908 3,908 SBA non-real estate secured 589 — — — 589 589 Total commercial loans 4,497 — — — 4,497 4,497 Total nonaccrual loans $ 30,905 $ 1,742 $ — $ — $ 30,905 $ 29,163 ______________________________ (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 MLTB by class and type of modification, as well as the percentage of the loan modified to total loans in each class at and during the period indicated: For The Six Months Ended June 30, 2023 Term Extension (Dollars in thousands) Balance Percent of Total Class of Loans Business loans secured by real estate CRE owner-occupied $ 851 0.04 % Total business loans secured by real estate $ 851 The following table describes the financial effect of the loan modification made for the borrower experiencing financial difficulty during the six months ended June 30, 2023: Term Extension Business loans secured by real estate CRE owner-occupied Extended term by 4 months
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 Industrial Properties Retail Properties Land Properties Hotel Properties Multifamily Properties Other CRE Properties Business Assets Total June 30, 2023 Investor loan secured by real estate CRE non-owner-occupied $ 1,129 $ — $ 437 $ — $ — $ — $ — $ — $ 1,566 SBA secured by real estate — — — — 505 — — — 505 Total investor loans secured by real estate 1,129 — 437 — 505 — — — 2,071 Business loans secured by real estate CRE owner-occupied 4,251 — — 4,733 — — — — 8,984 SBA secured by real estate — 1,111 195 — — — — — 1,306 Total business loans secured by real estate 4,251 1,111 195 4,733 — — — — 10,290 Commercial loans Commercial and industrial — — — 235 — — — 4,000 4,235 SBA non-real estate secured — — — — — — — 555 555 Total commercial loans — — — 235 — — — 4,555 4,790 Total collateral dependent loans $ 5,380 $ 1,111 $ 632 $ 4,968 $ 505 $ — $ — $ 4,555 $ 17,151 (Dollars in thousands) Office Properties Industrial Properties Retail Properties Land Properties Hotel Properties Multifamily Properties Other CRE Properties Business Assets Total December 31, 2022 Investor loan secured by real estate CRE non-owner-occupied $ — $ — $ 463 $ — $ — $ — $ 3,966 $ — $ 4,429 Multifamily — — — — — 8,780 — — 8,780 SBA secured by real estate — — — — 533 — — — 533 Total investor loans secured by real estate — — 463 — 533 8,780 3,966 — 13,742 Business loans secured by real estate CRE owner-occupied 4,417 — — 4,813 — — 2,245 — 11,475 SBA secured by real estate 104 1,087 — — — — — — 1,191 Total business loans secured by real estate 4,521 1,087 — 4,813 — — 2,245 — 12,666 Commercial loans Commercial and industrial — — — 238 — — 490 3,180 3,908 SBA non-real estate secured — — — — — — — 589 589 Total commercial loans — — — 238 — — 490 3,769 4,497 Total collateral dependent loans $ 4,521 $ 1,087 $ 463 $ 5,051 $ 533 $ 8,780 $ 6,701 $ 3,769 $ 30,905

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2023
Allowance for Credit Loss [Abstract]
Summary 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 June 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 $ 31,715 $ (2,591) $ — $ 2,421 $ 31,545 Multifamily 57,787 (73) 1 (2,067) 55,648 Construction and land 7,672 — — 35 7,707 SBA secured by real estate 2,291 — — 40 2,331 Business loans secured by real estate CRE owner-occupied 29,334 (207) 12 (624) 28,515 Franchise real estate secured 7,790 — — (935) 6,855 SBA secured by real estate 4,415 — 80 16 4,511 Commercial loans Commercial and industrial 37,659 (225) 169 1,983 39,586 Franchise non-real estate secured 15,721 — — (1,079) 14,642 SBA non-real estate secured 401 — 59 (61) 399 Retail loans Single family residential 392 — — 63 455 Consumer loans 211 (890) — 818 139 Totals $ 195,388 $ (3,986) $ 321 $ 610 $ 192,333 Six Months Ended June 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) $ 15 $ 495 $ 31,545 Multifamily 56,334 (290) 1 (397) 55,648 Construction and land 7,114 — — 593 7,707 SBA secured by real estate 2,592 — — (261) 2,331 Business loans secured by real estate CRE owner-occupied 32,340 (2,370) 24 (1,479) 28,515 Franchise real estate secured 7,019 — — (164) 6,855 SBA secured by real estate 4,348 — 80 83 4,511 Commercial loans Commercial and industrial 35,169 (1,348) 380 5,385 39,586 Franchise non-real estate secured 16,029 — 100 (1,487) 14,642 SBA non-real estate secured 441 — 65 (107) 399 Retail loans Single family residential 352 (90) 1 192 455 Consumer loans 221 (895) 35 778 139 Totals $ 195,651 $ (7,650) $ 701 $ 3,631 $ 192,333 Three Months Ended June 30, 2022 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner occupied $ 35,974 $ — $ — $ 1,247 $ 37,221 Multifamily 54,325 — — 1,968 56,293 Construction and land 5,219 — — 217 5,436 SBA secured by real estate 3,050 — — (185) 2,865 Business loans secured by real estate CRE owner-occupied 31,891 — 4 (434) 31,461 Franchise real estate secured 7,977 — — (1,447) 6,530 SBA secured by real estate 5,195 — — (46) 5,149 Commercial loans Commercial and industrial 38,598 (5,381) 533 3,298 37,048 Franchise non-real estate secured 14,304 (448) — (732) 13,124 SBA non-real estate secured 490 — 16 (54) 452 Retail loans Single family residential 233 — 33 12 278 Consumer loans 261 (2) — (41) 218 Totals $ 197,517 $ (5,831) $ 586 $ 3,803 $ 196,075 Six Months Ended June 30, 2022 (Dollars in thousands) Beginning ACL Balance Charge-offs Recoveries Provision for Credit Losses Ending Investor loans secured by real estate CRE non-owner occupied $ 37,380 $ — $ — $ (159) $ 37,221 Multifamily 55,209 — — 1,084 56,293 Construction and land 5,211 — — 225 5,436 SBA secured by real estate 3,201 (70) — (266) 2,865 Business loans secured by real estate CRE owner-occupied 29,575 — 14 1,872 31,461 Franchise real estate secured 7,985 — — (1,455) 6,530 SBA secured by real estate 4,866 — — 283 5,149 Commercial loans Commercial and industrial 38,136 (7,560) 2,374 4,098 37,048 Franchise non-real estate secured 15,084 (448) — (1,512) 13,124 SBA non-real estate secured 565 (50) 18 (81) 452 Retail loans Single family residential 255 — 33 (10) 278 Consumer loans 285 (2) — (65) 218 Totals $ 197,752 $ (8,130) $ 2,439 $ 4,014 $ 196,075
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 Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2023 2022 2023 2022 Beginning ACL balance $ 23,452 $ 27,508 $ 23,641 $ 27,290 Provision for credit losses on off-balance sheet commitments 1,003 (3,402) 814 (3,184) Ending ACL balance $ 24,455 $ 24,106 $ 24,455 $ 24,106

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-lived Intangible Assets	The following table summarizes the change in the balance of core deposit intangibles and customer relationship intangibles, and the related accumulated amortization for the periods indicated below: Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2023 2022 2023 2022 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 (92,795) (79,234) (89,624) (75,641) Amortization (3,055) (3,478) (6,226) (7,071) Ending balance (95,850) (82,712) (95,850) (82,712) Net intangible assets $ 49,362 $ 62,500 $ 49,362 $ 62,500

Subordinated Debentures (Tables

Subordinated Debentures (Tables)	6 Months Ended
	Jun. 30, 2023
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 June 30, 2023 December 31, 2022 Subordinated notes Subordinated notes due 2024, 5.75% per annum September 3, 2024 5.75 % $ 60,000 $ 59,850 $ 59,791 Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month LIBOR +2.5% thereafter May 15, 2029 4.875 % 125,000 123,514 123,386 Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month SOFR +5.170% thereafter June 15, 2030 5.375 % 150,000 148,159 148,027 Total subordinated debentures $ 335,000 $ 331,523 $ 331,204

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2023
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) June 30, 2023 June 30, 2022 Basic Net income $ 57,636 $ 69,803 Less: dividends and undistributed earnings allocated to participating securities (995) (867) Net income allocated to common stockholders $ 56,641 $ 68,936 Weighted average common shares outstanding 94,166,083 93,765,264 Basic earnings per common share $ 0.60 $ 0.74 Diluted Net income allocated to common stockholders $ 56,641 $ 68,936 Weighted average common shares outstanding 94,166,083 93,765,264 Dilutive effect of share-based compensation 49,884 275,427 Weighted average diluted common shares 94,215,967 94,040,691 Diluted earnings per common share $ 0.60 $ 0.73 Six Months Ended (Dollars in thousands, except per share data) June 30, 2023 June 30, 2022 Basic Net income $ 120,198 $ 136,707 Less: dividends and undistributed earnings allocated to participating securities (1,829) (1,545) Net income allocated to common stockholders $ 118,369 $ 135,162 Weighted average common shares outstanding 94,012,799 93,633,213 Basic earnings per common share $ 1.26 $ 1.44 Diluted Net income allocated to common stockholders $ 118,369 $ 135,162 Weighted average common shares outstanding 94,012,799 93,633,213 Dilutive effect of share-based compensation 179,542 349,844 Weighted average diluted common shares 94,192,341 93,983,057 Diluted earnings per common share $ 1.26 $ 1.44

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2023
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: June 30, 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 $ — $ 13,104 $ — $ 13,104 Agency — 413,855 — 413,855 Corporate — 498,119 — 498,119 Collateralized mortgage obligations — 327,257 — 327,257 Mortgage-backed securities — 759,456 — 759,456 Total AFS investment securities $ — $ 2,011,791 $ — $ 2,011,791 Equity securities $ 889 $ — $ — $ 889 Derivative assets: Foreign exchange contracts $ 2 $ — $ — $ 2 Interest rate swaps (1) — 6,895 — 6,895 Equity warrants — — 407 407 Total derivative assets $ 2 $ 6,895 $ 407 $ 7,304 Financial liabilities Derivative liabilities: Interest rate swaps $ — $ 12,267 $ — $ 12,267 Total derivative liabilities $ — $ 12,267 $ — $ 12,267 ______________________________ (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, 2022 Fair Value Measurement Using Total Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets AFS investment securities: U.S. Treasury $ — $ 47,017 $ — $ 47,017 Agency — 431,438 — 431,438 Corporate — 542,548 — 542,548 Collateralized mortgage obligations — 764,229 — 764,229 Mortgage-backed securities — 815,781 — 815,781 Total AFS investment securities $ — $ 2,601,013 $ — $ 2,601,013 Equity securities (1) $ 925 $ — $ — $ 13,526 Derivative assets: Foreign exchange contracts $ 1 $ — $ — $ 1 Interest rate swaps (2) — 7,053 — 7,053 Equity warrants — — 1,894 1,894 Total derivative assets $ 1 $ 7,053 $ 1,894 $ 8,948 Financial liabilities Derivative liabilities: Foreign exchange $ 1 $ — $ — $ 1 Interest rate swaps — 12,530 — 12,530 Total derivative liabilities $ 1 $ 12,530 $ — $ 12,531 ______________________________ (1) Includes equity securities that are measured at net asset value per share (or its equivalent) as a practical expedient of $12.6 million at December 31, 2022 and are excluded from the fair value hierarchy. (2) 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 Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2023 2022 2023 2022 Beginning balance $ 412 $ 1,908 $ 1,894 $ 1,889 Change in fair value (1) (5) (2) (25) 17 Net exercise — — (1,462) — Ending balance $ 407 $ 1,906 $ 407 $ 1,906 ______________________________ (1) The changes in fair value are included in other income on the consolidated statement of income.
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 recurring basis at the dates indicated. June 30, 2023 Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average Equity warrants $ 407 Black-Scholes Volatility 35.00% 4.87% 5.50% 35.00% 4.87% 5.50% 35.00% 4.87% 5.50% December 31, 2022 Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average Equity warrants $ 1,894 Black-Scholes Volatility 30.00% 4.32% 6.00% 35.00% 4.41% 16.00% 31.14% 4.39% 13.60% 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. June 30, 2023 Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average Other real estate owned $ 270 Fair value of property Cost to sell 10.00% 10.00% 10.00% Total assets $ 270 December 31, 2022 Range (Dollars in thousands) Fair Value Valuation Technique(s) Unobservable Input(s) Min Max Weighted Average Commercial loans Commercial and industrial $ 3,180 Fair value of collateral Collateral discount and cost to sell 6.00% 6.00% 6.00% Total individually evaluated loans $ 3,180 ______________________________ (1) SBA loans that are collateralized by hotel/motel real property.
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. June 30, 2023 Fair Value Measurement Using Total (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets Other real estate owned $ — $ — $ 270 $ 270 December 31, 2022 Fair Value Measurement Using Total (Dollars in thousands) Level 1 Level 2 Level 3 Financial assets Collateral dependent loans $ — $ — $ 3,180 $ 3,180
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. At June 30, 2023 (Dollars in thousands) Carrying Level 1 Level 2 Level 3 Estimated Assets Cash and cash equivalents $ 1,463,677 $ 1,463,677 $ — $ — $ 1,463,677 Interest-bearing time deposits with financial institutions 1,487 1,487 — — 1,487 HTM investment securities 1,737,604 — 1,458,287 — 1,458,287 AFS investment securities 2,011,791 — 2,011,791 — 2,011,791 Equity securities 889 889 — — 889 Loans held for sale 2,184 — 2,269 — 2,269 Loans held for investment, net 13,610,282 — — 12,799,845 12,799,845 Derivative assets (1) 7,304 2 6,895 407 7,304 Accrued interest receivable 70,093 — 70,093 — 70,093 Liabilities Deposit accounts $ 16,539,875 $ — $ 16,537,940 $ — $ 16,537,940 FHLB advances 800,000 — 783,889 — 783,889 Subordinated debentures 331,523 — 320,471 — 320,471 Derivative liabilities 12,267 — 12,267 — 12,267 Accrued interest payable 27,249 — 27,249 — 27,249 ______________________________ (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. At December 31, 2022 (Dollars in thousands) Carrying Level 1 Level 2 Level 3 Estimated Assets Cash and cash equivalents $ 1,101,249 $ 1,101,249 $ — $ — $ 1,101,249 Interest-bearing time deposits with financial institutions 1,734 1,734 — — 1,734 HTM investment securities 1,388,103 — 1,097,096 — 1,097,096 AFS investment securities 2,601,013 — 2,601,013 — 2,601,013 Equity securities (1) 13,526 925 — — 13,526 Loans held for sale 2,643 — 2,755 — 2,755 Loans held for investment, net 14,676,298 — — 13,846,403 13,846,403 Derivative assets (2) 8,948 1 7,053 1,894 8,948 Accrued interest receivable 73,784 — 73,784 — 73,784 Liabilities Deposit accounts $ 17,352,401 $ — $ 17,334,219 $ — $ 17,334,219 FHLB advances 1,000,000 — 982,695 — 982,695 Subordinated debentures 331,204 — 327,609 — 327,609 Derivative liabilities 12,531 1 12,530 — 12,531 Accrued interest payable 14,661 — 14,661 — 14,661 ______________________________ (1) Includes equity securities that are measured at net asset value per share (or its equivalent) as a practical expedient of $12.6 million at December 31, 2022 and are excluded from the fair value hierarchy. (2) 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)	6 Months Ended
	Jun. 30, 2023
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) June 30, 2023 December 31, 2022 June 30, 2023 December 31, 2022 Loans held for investment (1) $ 1,146,870 $ 1,138,074 $ (53,130) $ (61,926) Total $ 1,146,870 $ 1,138,074 $ (53,130) $ (61,926) ______________________________ (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 June 30, 2023 and December 31, 2022, the amortized cost basis of the closed portfolios used in these hedging relationships was $3.14 billion and $3.35 billion, respectively, the cumulative basis adjustments associated with these hedging relationships was $(53.1) million and $(61.9) million, respectively; and the amounts of the designated hedged items were $1.20 billion and $1.20 billion, respectively. The following table presents the effect of fair value hedge accounting on the consolidated statements of income: Three Months Ended Six Months Ended (Dollars in thousands) Location of Gain (Loss) Recognized in Income on Derivative Instruments June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Gain (loss) on fair value hedging relationships: Hedged items Interest Income $ (3,125) $ (11,866) $ 8,796 $ (45,790) Derivatives designated as hedging instruments Interest Income 12,896 12,082 9,310 44,339
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: June 30, 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 $ 1,200,000 $ 55,428 $ — $ — Total derivative designated as hedging instruments 1,200,000 55,428 — — Derivative instruments not designated as hedging instruments: Foreign exchange contracts 76 2 283 — Interest rate swaps contracts 109,055 12,157 109,055 12,158 Equity warrants — 407 — — Total derivative not designated as hedging instruments 109,131 12,566 109,338 12,158 Total derivatives $ 1,309,131 67,994 $ 109,338 12,158 Netting adjustments - cleared positions (1) 60,690 109 Total derivatives in the Balance Sheet $ 7,304 $ 12,267 ______________________________ (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. December 31, 2022 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 $ 900,000 $ 63,710 $ 300,000 $ 72 Total derivative designated as hedging instruments 900,000 63,710 300,000 72 Derivative instruments not designated as hedging instruments: Foreign exchange contracts 22 1 143 1 Interest rate swaps contracts 112,124 12,524 112,124 12,525 Equity warrants — 1,894 — — Total derivative not designated as hedging instruments 112,146 14,419 112,267 12,526 Total derivatives $ 1,012,146 $ 78,129 $ 412,267 $ 12,598 Netting adjustments - cleared positions (1) 69,181 67 Total derivatives in the Balance Sheet $ 8,948 $ 12,531 ______________________________ (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 Six Months Ended Derivatives Not Designated as Hedging Instruments: Location of Gain (Loss) Recognized in Income on Derivative Instruments June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Foreign exchange contracts Other income $ 263 $ 77 $ 483 $ 123 Interest rate products Other income — 2 — 3 Equity warrants Other income (535) (2) (786) 17 Total $ (272) $ 77 $ (303) $ 143

Balance Sheet Offsetting (Table

Balance Sheet Offsetting (Tables)	6 Months Ended
	Jun. 30, 2023
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) June 30, 2023 Derivative assets: Interest rate swaps $ 6,895 $ — $ 6,895 $ — $ (5,330) $ 1,565 Total $ 6,895 $ — $ 6,895 $ — $ (5,330) $ 1,565 Derivative liabilities: Interest rate swaps $ 12,267 $ — $ 12,267 $ — $ — $ 12,267 Total $ 12,267 $ — $ 12,267 $ — $ — $ 12,267 December 31, 2022 Derivative assets: Interest rate swaps $ 7,053 $ — $ 7,053 $ — $ (5,440) $ 1,613 Total $ 7,053 $ — $ 7,053 $ — $ (5,440) $ 1,613 Derivative liabilities: Interest rate swaps $ 12,530 $ — $ 12,530 $ — $ — $ 12,530 Total $ 12,530 $ — $ 12,530 $ — $ — $ 12,530 ______________________________ (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)	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary 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 June 30, 2023 and December 31, 2022 that relate to variable interests in non-consolidated VIEs. June 30, 2023 December 31, 2022 (Dollars in thousands) Maximum Loss Assets Liabilities Maximum Loss Assets Liabilities Multifamily loan securitization: Investment securities (1) $ 51,301 $ 51,301 $ — $ 56,784 $ 56,784 $ — Reimbursement obligation (2) 50,901 — 334 50,901 — 334 Affordable housing partnership: Other investments (3) 53,639 76,070 — 60,531 75,959 — Unfunded equity commitments (2) — — 22,432 — — 15,428 Total $ 155,841 $ 127,371 $ 22,766 $ 168,216 $ 132,743 $ 15,762 ______________________________ (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.

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
AFS investment securities:
Amortized  Cost	$ 2,286,536		$ 2,904,745
Gross Unrealized Gain	104		0
Gross Unrealized Loss	(274,849)		(303,732)
Estimated Fair Value	2,011,791		2,601,013
HTM investment securities:
Amortized  Cost	1,737,717		1,388,146
Allowance for Credit Losses	(113)	$ (227)	(43)	$ (109)	$ (41)	$ (22)
Net Carrying Amount	1,737,604		1,388,103
Gross Unrecognized Gain	70		44
Gross Unrecognized Loss	(279,387)		(291,051)
Estimated Fair Value	1,458,287		1,097,096
U.S. Treasury
AFS investment securities:
Amortized  Cost	14,944		49,156
Gross Unrealized Gain	0		0
Gross Unrealized Loss	(1,840)		(2,139)
Estimated Fair Value	13,104		47,017
Agency
AFS investment securities:
Amortized  Cost	463,958		485,331
Gross Unrealized Gain	0		0
Gross Unrealized Loss	(50,103)		(53,893)
Estimated Fair Value	413,855		431,438
Corporate
AFS investment securities:
Amortized  Cost	561,128		586,652
Gross Unrealized Gain	104		0
Gross Unrealized Loss	(63,113)		(44,104)
Estimated Fair Value	498,119		542,548
Collateralized mortgage obligations
AFS investment securities:
Amortized  Cost	357,766		829,928
Gross Unrealized Gain	0		0
Gross Unrealized Loss	(30,509)		(65,699)
Estimated Fair Value	327,257		764,229
HTM investment securities:
Amortized  Cost	349,328
Allowance for Credit Losses	0
Net Carrying Amount	349,328
Gross Unrecognized Gain	70
Gross Unrecognized Loss	(7,385)
Estimated Fair Value	342,013
Mortgage-backed securities
AFS investment securities:
Amortized  Cost	888,740		953,678
Gross Unrealized Gain	0		0
Gross Unrealized Loss	(129,284)		(137,897)
Estimated Fair Value	759,456		815,781
HTM investment securities:
Amortized  Cost	224,470		231,692
Allowance for Credit Losses	0		0
Net Carrying Amount	224,470		231,692
Gross Unrecognized Gain	0		0
Gross Unrecognized Loss	(33,460)		(33,621)
Estimated Fair Value	191,010		198,071
Municipal bonds
HTM investment securities:
Amortized  Cost	1,147,604		1,148,055
Allowance for Credit Losses	(113)		(43)
Net Carrying Amount	1,147,491		1,148,012
Gross Unrecognized Gain	0		44
Gross Unrecognized Loss	(238,542)		(257,430)
Estimated Fair Value	908,949		890,626
Other
HTM investment securities:
Amortized  Cost	16,315		8,399
Allowance for Credit Losses	0		0
Net Carrying Amount	16,315		8,399
Gross Unrecognized Gain	0		0
Gross Unrecognized Loss	0		0
Estimated Fair Value	$ 16,315		$ 8,399

Investment Securities - Narrati

Investment Securities - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) investment_security	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) investment_security	Jun. 30, 2022 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) investment_security	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Summary of Investment Holdings [Line Items]
Net carrying amount of securities transferred from available-for-sale to held-to-maturity			$ 360,347,000	$ 1,019,472,000
Accumulated other comprehensive loss, net of tax	$ (275,467,000)		(275,467,000)			$ (265,247,000)
Investments held-to-maturity, allowance for credit losses	113,000	$ 109,000	113,000	109,000	$ 227,000	43,000	$ 41,000	$ 22,000
Allowance for credit losses	0		0			$ 0
Available-for-sale securities, provision for credit losses	$ 0	$ 0	$ 0	0
Available-for-sale and held-to-maturity securities in nonaccrual status | investment_security	0		0			0
Available-for-sale and held-to-maturity securities purchased with deterioration in credit quality | investment_security	0		0			0
Available-for-sale and held-to-maturity collateral dependent | investment_security	0		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	$ (274,700,000)		$ (274,700,000)			$ (303,700,000)
Accumulated other comprehensive loss, net of tax	(196,600,000)		(196,600,000)			(217,400,000)
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	(110,100,000)		(110,100,000)
Accumulated other comprehensive loss, net of tax	(78,800,000)		(78,800,000)
Public deposits, Other Borrowings, and Other Purposes | Asset Pledged as Collateral
Summary of Investment Holdings [Line Items]
Investments at carrying value	3,700,000,000		3,700,000,000			195,600,000
Federal Reserve Discount Window | Asset Pledged as Collateral
Summary of Investment Holdings [Line Items]
Investments at carrying value	1,680,000,000		1,680,000,000
Federal Reserves New Bank Term Funding Program | Asset Pledged as Collateral
Summary of Investment Holdings [Line Items]
Investments at carrying value	1,830,000,000		1,830,000,000
Mortgage-backed securities
Summary of Investment Holdings [Line Items]
Securities transferred from available-for-sale to held-to-maturity			410,700,000	255,000,000
Net carrying amount of securities transferred from available-for-sale to held-to-maturity			360,300,000	238,800,000
Debt securities, held-to-maturity, transfer, unrealized loss			(50,400,000)	(16,200,000)
Investments held-to-maturity, allowance for credit losses	0		0			0
Municipal bonds
Summary of Investment Holdings [Line Items]
Securities transferred from available-for-sale to held-to-maturity				831,400,000
Net carrying amount of securities transferred from available-for-sale to held-to-maturity				780,700,000
Debt securities, held-to-maturity, transfer, unrealized loss				$ (50,800,000)
Investments held-to-maturity, allowance for credit losses	$ 113,000		$ 113,000			$ 43,000
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	75%		75%

Investment Securities - Investm

Investment Securities - Investment Category and Length of Time (Details) $ in Thousands	Jun. 30, 2023 USD ($) investment_security	Dec. 31, 2022 USD ($) investment_security
Less than 12 Months
Number | investment_security	12	102
Fair Value	$ 166,471	$ 1,056,578
Gross Unrealized Losses	$ (6,141)	$ (62,647)
12 Months or Longer
Number | investment_security	215	165
Fair Value	$ 1,830,283	$ 1,544,392
Gross Unrealized Losses	$ (268,708)	$ (241,085)
Total
Number | investment_security	227	267
Fair Value	$ 1,996,754	$ 2,600,970
Gross Unrealized Losses	$ (274,849)	$ (303,732)
U.S. Treasury
Less than 12 Months
Number | investment_security	0	5
Fair Value	$ 0	$ 33,982
Gross Unrealized Losses	$ 0	$ (237)
12 Months or Longer
Number | investment_security	1	1
Fair Value	$ 13,104	$ 13,036
Gross Unrealized Losses	$ (1,840)	$ (1,902)
Total
Number | investment_security	1	6
Fair Value	$ 13,104	$ 47,018
Gross Unrealized Losses	$ (1,840)	$ (2,139)
Agency
Less than 12 Months
Number | investment_security	4	8
Fair Value	$ 43,105	$ 79,895
Gross Unrealized Losses	$ (895)	$ (1,265)
12 Months or Longer
Number | investment_security	37	35
Fair Value	$ 370,751	$ 351,543
Gross Unrealized Losses	$ (49,208)	$ (52,628)
Total
Number | investment_security	41	43
Fair Value	$ 413,856	$ 431,438
Gross Unrealized Losses	$ (50,103)	$ (53,893)
Corporate
Less than 12 Months
Number | investment_security	2	35
Fair Value	$ 26,068	$ 327,984
Gross Unrealized Losses	$ (3,932)	$ (20,840)
12 Months or Longer
Number | investment_security	50	21
Fair Value	$ 457,013	$ 214,565
Gross Unrealized Losses	$ (59,181)	$ (23,264)
Total
Number | investment_security	52	56
Fair Value	$ 483,081	$ 542,549
Gross Unrealized Losses	$ (63,113)	$ (44,104)
Collateralized mortgage obligations
Less than 12 Months
Number | investment_security	4	41
Fair Value	$ 69,635	$ 522,955
Gross Unrealized Losses	$ (991)	$ (33,318)
12 Months or Longer
Number | investment_security	49	40
Fair Value	$ 257,622	$ 241,229
Gross Unrealized Losses	$ (29,518)	$ (32,381)
Total
Number | investment_security	53	81
Fair Value	$ 327,257	$ 764,184
Gross Unrealized Losses	$ (30,509)	$ (65,699)
Mortgage-backed securities
Less than 12 Months
Number | investment_security	2	13
Fair Value	$ 27,663	$ 91,762
Gross Unrealized Losses	$ (323)	$ (6,987)
12 Months or Longer
Number | investment_security	78	68
Fair Value	$ 731,793	$ 724,019
Gross Unrealized Losses	$ (128,961)	$ (130,910)
Total
Number | investment_security	80	81
Fair Value	$ 759,456	$ 815,781
Gross Unrealized Losses	$ (129,284)	$ (137,897)

Investment Securities - Schedul

Investment Securities - Schedule of Allowance for Credit Losses on Held-to-Maturity Debt Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
HTM investment securities:
Beginning balance	$ 227	$ 41	$ 43	$ 22
Provision for Credit Losses	(114)	68	70	87
Ending balance	$ 113	$ 109	$ 113	$ 109

Investment Securities - Realize

Investment Securities - Realized Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Amortized cost of AFS investment securities sold	$ 0	$ 45,121	$ 304,182	$ 703,626
Gross realized gains	0	7	986	13,645
Gross realized (losses)	0	(38)	(848)	(11,542)
Net realized gains on sales of AFS investment securities	$ 0	$ (31)	$ 138	$ 2,103

Investment Securities - By Cont

Investment Securities - By Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Amortized Cost
Due in One Year or Less	$ 60,630
Due after One Year through Five Years	672,420
Due after Five Years through Ten Years	1,075,617
Due after Ten Years	477,869
Amortized  Cost	2,286,536	$ 2,904,745
Fair Value
Due in One Year or Less	60,093
Due after One Year through Five Years	640,356
Due after Five Years through Ten Years	911,873
Due after Ten Years	399,469
Total	2,011,791	2,601,013
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	10,773
Due after Five Years through Ten Years	53,352
Due after Ten Years	1,673,592
Total	1,737,717	1,388,146
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	10,311
Due after Five Years through Ten Years	47,279
Due after Ten Years	1,400,697
Total	1,458,287	1,097,096
Amortized Cost
Due in One Year or Less	60,630
Due after One Year through Five Years	683,193
Due after Five Years through Ten Years	1,128,969
Due after Ten Years	2,151,461
Total	4,024,253
Fair Value
Due in One Year or Less	60,093
Due after One Year through Five Years	650,667
Due after Five Years through Ten Years	959,152
Due after Ten Years	1,800,166
Total	3,470,078
U.S. Treasury
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	14,944
Due after Five Years through Ten Years	0
Due after Ten Years	0
Amortized  Cost	14,944	49,156
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	13,104
Due after Five Years through Ten Years	0
Due after Ten Years	0
Total	13,104	47,017
Agency
Amortized Cost
Due in One Year or Less	17,140
Due after One Year through Five Years	314,680
Due after Five Years through Ten Years	106,988
Due after Ten Years	25,150
Amortized  Cost	463,958	485,331
Fair Value
Due in One Year or Less	16,989
Due after One Year through Five Years	289,909
Due after Five Years through Ten Years	88,101
Due after Ten Years	18,856
Total	413,855	431,438
Corporate
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	288,165
Due after Five Years through Ten Years	272,963
Due after Ten Years	0
Amortized  Cost	561,128	586,652
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	283,555
Due after Five Years through Ten Years	214,564
Due after Ten Years	0
Total	498,119	542,548
Collateralized mortgage obligations
Amortized Cost
Due in One Year or Less	15,504
Due after One Year through Five Years	54,631
Due after Five Years through Ten Years	193,285
Due after Ten Years	94,346
Amortized  Cost	357,766	829,928
Fair Value
Due in One Year or Less	15,441
Due after One Year through Five Years	53,788
Due after Five Years through Ten Years	170,373
Due after Ten Years	87,655
Total	327,257	764,229
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	132
Due after Five Years through Ten Years	0
Due after Ten Years	349,196
Total	349,328
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	132
Due after Five Years through Ten Years	0
Due after Ten Years	341,881
Total	342,013
Mortgage-backed securities
Amortized Cost
Due in One Year or Less	27,986
Due after One Year through Five Years	0
Due after Five Years through Ten Years	502,381
Due after Ten Years	358,373
Amortized  Cost	888,740	953,678
Fair Value
Due in One Year or Less	27,663
Due after One Year through Five Years	0
Due after Five Years through Ten Years	438,835
Due after Ten Years	292,958
Total	759,456	815,781
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	224,470
Total	224,470	231,692
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	191,010
Total	191,010	198,071
Municipal bonds
Amortized Cost
Due in One Year or Less	0
Due after One Year through Five Years	10,641
Due after Five Years through Ten Years	53,352
Due after Ten Years	1,083,611
Total	1,147,604	1,148,055
Fair Value
Due in One Year or Less	0
Due after One Year through Five Years	10,179
Due after Five Years through Ten Years	47,279
Due after Ten Years	851,491
Total	908,949	$ 890,626
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	16,315
Total	16,315
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	16,315
Total	$ 16,315

Loans Held for Investment - Com

Loans Held for Investment - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Loans Held for Investment
Total	$ 13,610,282		$ 14,676,298
Loans held for investment before basis adjustment	13,663,412		14,738,224
Allowance for credit losses for loans held for investment	(192,333)	$ (195,388)	(195,651)	$ (196,075)	$ (197,517)	$ (197,752)
Loans held for investment, net	13,417,949		14,480,647
Loans held for sale, at lower of cost or fair value	2,184		2,643
Net deferred origination fees (costs)	142		1,900
Unaccreted mark-to-market discount	48,400		54,800
Basis adjustment associated with fair value hedge
Loans Held for Investment
Loans held for investment before basis adjustment	13,663,412		14,738,224
Basis adjustment associated with fair value hedge	(53,130)		(61,926)
Total unfunded loan commitments
Loans Held for Investment
Total	2,202,647		2,489,203
Investor loans secured by real estate
Loans Held for Investment
Total	8,826,439		9,213,516
Loans held for investment before basis adjustment	8,826,439		9,213,516
Investor loans secured by real estate | CRE non-owner-occupied
Loans Held for Investment
Total	2,571,246		2,660,321
Loans held for investment before basis adjustment	2,571,246		2,660,321
Allowance for credit losses for loans held for investment	(31,545)	(31,715)	(33,692)	(37,221)	(35,974)	(37,380)
Investor loans secured by real estate | Multifamily
Loans Held for Investment
Total	5,788,030		6,112,026
Loans held for investment before basis adjustment	5,788,030		6,112,026
Allowance for credit losses for loans held for investment	(55,648)	(57,787)	(56,334)	(56,293)	(54,325)	(55,209)
Investor loans secured by real estate | Construction and land
Loans Held for Investment
Total	428,287		399,034
Loans held for investment before basis adjustment	428,287		399,034
Allowance for credit losses for loans held for investment	(7,707)	(7,672)	(7,114)	(5,436)	(5,219)	(5,211)
Investor loans secured by real estate | SBA secured by real estate
Loans Held for Investment
Total	38,876		42,135
Loans held for investment before basis adjustment	38,876		42,135
Allowance for credit losses for loans held for investment	(2,331)	(2,291)	(2,592)	(2,865)	(3,050)	(3,201)
Business loans secured by real estate
Loans Held for Investment
Total	2,657,344		2,871,588
Loans held for investment before basis adjustment	2,657,344		2,871,588
Business loans secured by real estate | SBA secured by real estate
Loans Held for Investment
Total	57,084		61,368
Loans held for investment before basis adjustment	57,084		61,368
Allowance for credit losses for loans held for investment	(4,511)	(4,415)	(4,348)	(5,149)	(5,195)	(4,866)
Business loans secured by real estate | CRE owner-occupied
Loans Held for Investment
Total	2,281,721		2,432,163
Loans held for investment before basis adjustment	2,281,721		2,432,163
Allowance for credit losses for loans held for investment	(28,515)	(29,334)	(32,340)	(31,461)	(31,891)	(29,575)
Business loans secured by real estate | Franchise real estate secured
Loans Held for Investment
Total	318,539		378,057
Loans held for investment before basis adjustment	318,539		378,057
Allowance for credit losses for loans held for investment	(6,855)	(7,790)	(7,019)	(6,530)	(7,977)	(7,985)
Commercial loans
Loans Held for Investment
Total	2,106,395		2,576,839
Loans held for investment before basis adjustment	2,106,395		2,576,839
Commercial loans | Commercial and industrial
Loans Held for Investment
Total	1,744,763		2,160,948
Loans held for investment before basis adjustment	1,744,763		2,160,948
Allowance for credit losses for loans held for investment	(39,586)	(37,659)	(35,169)	(37,048)	(38,598)	(38,136)
Commercial loans | Franchise non-real estate secured
Loans Held for Investment
Total	351,944		404,791
Loans held for investment before basis adjustment	351,944		404,791
Allowance for credit losses for loans held for investment	(14,642)	(15,721)	(16,029)	(13,124)	(14,304)	(15,084)
Commercial loans | SBA non-real estate secured
Loans Held for Investment
Total	9,688		11,100
Loans held for investment before basis adjustment	9,688		11,100
Allowance for credit losses for loans held for investment	(399)	(401)	(441)	(452)	(490)	(565)
Retail loans
Loans Held for Investment
Total	73,234		76,281
Loans held for investment before basis adjustment	73,234		76,281
Retail loans | Single family residential
Loans Held for Investment
Total	70,993		72,997
Loans held for investment before basis adjustment	70,993		72,997
Allowance for credit losses for loans held for investment	(455)	(392)	(352)	(278)	(233)	(255)
Retail loans | Consumer
Loans Held for Investment
Total	2,241		3,284
Loans held for investment before basis adjustment	2,241		3,284
Allowance for credit losses for loans held for investment	$ (139)	$ (211)	$ (221)	$ (218)	$ (261)	$ (285)

Loans Held for Investment - Nar

Loans Held for Investment - Narrative (Details)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2016 USD ($)	Jun. 30, 2023 USD ($) loan borrowingRelationship	Jun. 30, 2022 loan	Jun. 30, 2023 USD ($) grade loan area borrowingRelationship	Jun. 30, 2022 loan	Dec. 31, 2022 USD ($) loan
Loans Held for Investment
Servicing rights retained from guaranteed portion of SBA loans sold		$ 2,300,000		$ 2,300,000		$ 3,000,000
Accrued expenses and other liabilities		227,351,000		227,351,000		206,023,000
Unpaid principal balance for loans and participations serviced for others		421,300,000		421,300,000		463,400,000
Secured loans limit to one borrower		824,200,000		824,200,000
Unsecured loans limit to one borrower		494,500,000		494,500,000
Aggregate outstanding balance of loans to one borrower of secured credit		170,300,000		$ 170,300,000
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		17,200,000		$ 17,200,000		30,900,000
ACL attributable to individually evaluated loans		4,000,000		4,000,000		1,700,000
Loans held for investment		13,610,282,000		13,610,282,000		14,676,298,000
Total nonaccrual loans		$ 17,151,000		$ 17,151,000		30,905,000
Number of loans 90 days or more past due and still accruing | loan		7		7
Number of loans 90 days or more past due and still accruing, number of borrowing relationships | borrowingRelationship		1		1
Loans 90 days or more past due and still accruing						0
Consumer mortgage loans collateralized by residential real estate, foreclosure proceedings in process		$ 0		$ 0		$ 0
Loan modifications to borrowers		0		851,000
Preceding payment default		0		0
Number of loans modified | loan						5
Troubled debt restructuring						$ 16,100,000
Financial Asset Acquired with Credit Deterioration
Loans Held for Investment
Loans held for investment		393,500,000		393,500,000		422,700,000
Discounted Cash Flow Approach
Loans Held for Investment
Individually evaluated loans		$ 0		$ 0		0
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		$ 334,000		$ 334,000		334,000
Multifamily Loan Securitization
Loans Held for Investment
Unpaid principal balance for loans and participations serviced for others		51,300,000		51,300,000		54,200,000
Multifamily Loan Securitization | Variable Interest Entity, Not Primary Beneficiary
Loans Held for Investment
Accrued expenses and other liabilities		334,000		334,000		334,000
Multifamily Loan Securitization | Opus Bank
Loans Held for Investment
Proceeds from sale of loans receivable	$ 509,000,000
SBA
Loans Held for Investment
Unpaid principal balance for loans and participations serviced for others		286,300,000		286,300,000		315,300,000
CRE owner-occupied & Commercial and industrial
Loans Held for Investment
Troubled debt restructuring						$ 5,100,000
CRE owner-occupied
Loans Held for Investment
Number of loans modified | loan			3		3	3
Commercial and industrial
Loans Held for Investment
Loans 90 days or more past due and still accruing		$ 17,900,000		$ 17,900,000
Number of loans modified | loan			1		1	1
Franchise non-real estate secured
Loans Held for Investment
Number of loans modified | loan						1
Troubled debt restructuring						$ 11,000,000

Loans Held for Investment - Int

Loans Held for Investment - Internal Risk Grading System under ASC 326 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	$ 189,532		$ 189,532		$ 3,033,849
Fiscal Year before current fiscal year	2,956,366		2,956,366		4,237,198
Two Years before current fiscal year	3,999,162		3,999,162		1,402,650
Three Years before current fiscal year	1,282,063		1,282,063		1,788,312
Four Years before current fiscal year	1,632,127		1,632,127		861,690
Prior	2,660,897		2,660,897		2,206,015
Revolving	925,725		925,725		1,203,904
Revolving Converted to Term During the Period	17,540		17,540		4,606
Total	13,663,412		13,663,412		14,738,224
Current fiscal year charge off			0
One year before current fiscal year charge off			282
Two year before current fiscal year charge off			594
Three year before current fiscal year charge off			196
Four year before current fiscal year charge off			289
Prior year before current fiscal year charge off			5,610
Revolving charge off			679
Revolving Converted to Term During the Period charge off			0
Total	3,986	$ 5,831	7,650	$ 8,130
Loans held for investment	13,610,282		13,610,282		14,676,298
Basis adjustment associated with fair value hedge
Financing Receivable, Credit Quality Indicator [Line Items]
Total	13,663,412		13,663,412		14,738,224
Basis adjustment associated with fair value hedge	53,130		53,130		61,926
Investor loans secured by real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	132,519		132,519		1,948,392
Fiscal Year before current fiscal year	1,969,109		1,969,109		2,954,826
Two Years before current fiscal year	2,834,984		2,834,984		1,034,449
Three Years before current fiscal year	943,834		943,834		1,268,038
Four Years before current fiscal year	1,203,196		1,203,196		590,859
Prior	1,742,394		1,742,394		1,416,489
Revolving	403		403		0
Revolving Converted to Term During the Period	0		0		463
Total	8,826,439		8,826,439		9,213,516
Current fiscal year charge off			0
One year before current fiscal year charge off			0
Two year before current fiscal year charge off			217
Three year before current fiscal year charge off			0
Four year before current fiscal year charge off			0
Prior year before current fiscal year charge off			2,730
Revolving charge off			0
Revolving Converted to Term During the Period charge off			0
Total			2,947
Loans held for investment	8,826,439		8,826,439		9,213,516
Investor loans secured by real estate | CRE non-owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,571,246		2,571,246		2,660,321
Total	2,591	0	2,657	0
Loans held for investment	2,571,246		2,571,246		2,660,321
Investor loans secured by real estate | CRE non-owner-occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	13,775		13,775		523,895
Fiscal Year before current fiscal year	520,853		520,853		607,153
Two Years before current fiscal year	599,620		599,620		208,760
Three Years before current fiscal year	196,597		196,597		347,889
Four Years before current fiscal year	321,542		321,542		308,317
Prior	903,295		903,295		651,593
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	2,555,682		2,555,682		2,647,607
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	3,847		3,847		0
Two Years before current fiscal year	2,570		2,570		0
Three Years before current fiscal year	0		0		0
Four Years before current fiscal year	0		0		7,487
Prior	0		0		0
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	6,417		6,417		7,487
Investor loans secured by real estate | CRE non-owner-occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal Year before current fiscal year	437		437		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		194
Prior	8,710		8,710		4,570
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		463
Total	9,147		9,147		5,227
Investor loans secured by real estate | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Total	5,788,030		5,788,030		6,112,026
Total	73	0	290	0
Loans held for investment	5,788,030		5,788,030		6,112,026
Investor loans secured by real estate | Multifamily | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	73,440		73,440		1,230,359
Fiscal Year before current fiscal year	1,210,300		1,210,300		2,187,255
Two Years before current fiscal year	2,095,164		2,095,164		786,436
Three Years before current fiscal year	739,051		739,051		889,737
Four Years before current fiscal year	858,898		858,898		263,241
Prior	798,230		798,230		732,808
Revolving	403		403		0
Revolving Converted to Term During the Period	0		0		0
Total	5,775,486		5,775,486		6,089,836
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	0		0		12,667
Four Years before current fiscal year	12,544		12,544		0
Prior	0		0		0
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	12,544		12,544		12,667
Investor loans secured by real estate | Multifamily | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year					0
Fiscal Year before current fiscal year					6,057
Two Years before current fiscal year					0
Three Years before current fiscal year					2,723
Four Years before current fiscal year					0
Prior					743
Revolving					0
Revolving Converted to Term During the Period					0
Total					9,523
Investor loans secured by real estate | Construction and land
Financing Receivable, Credit Quality Indicator [Line Items]
Total	428,287		428,287		399,034
Total	0	0	0	0
Loans held for investment	428,287		428,287		399,034
Investor loans secured by real estate | Construction and land | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	45,304		45,304		187,567
Fiscal Year before current fiscal year	227,148		227,148		154,231
Two Years before current fiscal year	137,500		137,500		38,760
Three Years before current fiscal year	7,693		7,693		9,615
Four Years before current fiscal year	4,858		4,858		1,843
Prior	5,784		5,784		7,018
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	428,287		428,287		399,034
Investor loans secured by real estate | SBA secured by real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	38,876		38,876		42,135
Total	0	0	0	70
Loans held for investment	38,876		38,876		42,135
Investor loans secured by real estate | SBA secured by real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		6,571
Fiscal Year before current fiscal year	6,524		6,524		130
Two Years before current fiscal year	130		130		493
Three Years before current fiscal year	493		493		5,407
Four Years before current fiscal year	4,820		4,820		7,361
Prior	18,351		18,351		13,199
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	30,318		30,318		33,161
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		0
Three Years before current fiscal year	0		0		0
Four Years before current fiscal year	534		534		2,416
Prior	8,024		8,024		6,558
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	8,558		8,558		8,974
Business loans secured by real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	19,190		19,190		676,516
Fiscal Year before current fiscal year	651,277		651,277		873,443
Two Years before current fiscal year	825,401		825,401		289,937
Three Years before current fiscal year	266,761		266,761		299,206
Four Years before current fiscal year	254,412		254,412		158,541
Prior	634,458		634,458		568,284
Revolving	5,845		5,845		5,661
Revolving Converted to Term During the Period	0		0		0
Total	2,657,344		2,657,344		2,871,588
Current fiscal year charge off			0
One year before current fiscal year charge off			0
Two year before current fiscal year charge off			318
Three year before current fiscal year charge off			191
Four year before current fiscal year charge off			0
Prior year before current fiscal year charge off			1,861
Revolving charge off			0
Revolving Converted to Term During the Period charge off			0
Total			2,370
Loans held for investment	2,657,344		2,657,344		2,871,588
Business loans secured by real estate | SBA secured by real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	57,084		57,084		61,368
Total	0	0	0	0
Loans held for investment	57,084		57,084		61,368
Business loans secured by real estate | SBA secured by real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	115		115		10,993
Fiscal Year before current fiscal year	9,951		9,951		6,978
Two Years before current fiscal year	8,079		8,079		2,329
Three Years before current fiscal year	2,128		2,128		5,710
Four Years before current fiscal year	5,140		5,140		4,440
Prior	26,014		26,014		25,415
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	51,427		51,427		55,865
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					0
Two Years before current fiscal year					0
Three Years before current fiscal year					0
Four Years before current fiscal year					0
Prior					118
Revolving					0
Revolving Converted to Term During the Period					0
Total					118
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		1,354
Prior	5,657		5,657		4,031
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	5,657		5,657		5,385
Business loans secured by real estate | CRE owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,281,721		2,281,721		2,432,163
Total	207	0	2,370	0
Loans held for investment	2,281,721		2,281,721		2,432,163
Business loans secured by real estate | CRE owner-occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	11,456		11,456		593,826
Fiscal Year before current fiscal year	582,666		582,666		718,223
Two Years before current fiscal year	680,769		680,769		242,125
Three Years before current fiscal year	231,507		231,507		240,772
Four Years before current fiscal year	227,929		227,929		114,581
Prior	499,279		499,279		448,531
Revolving	5,845		5,845		5,661
Revolving Converted to Term During the Period	0		0		0
Total	2,239,451		2,239,451		2,363,719
Business loans secured by real estate | CRE owner-occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		334
Fiscal Year before current fiscal year	0		0		1,015
Two Years before current fiscal year	2,816		2,816		0
Three Years before current fiscal year	0		0		0
Four Years before current fiscal year	0		0		675
Prior	15,229		15,229		327
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	18,045		18,045		2,351
Business loans secured by real estate | CRE owner-occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		10,838
Fiscal Year before current fiscal year	10,348		10,348		2,541
Two Years before current fiscal year	0		0		11,970
Three Years before current fiscal year	4,251		4,251		2,403
Four Years before current fiscal year	0		0		4,676
Prior	9,626		9,626		33,665
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	24,225		24,225		66,093
Business loans secured by real estate | Franchise real estate secured
Financing Receivable, Credit Quality Indicator [Line Items]
Total	318,539		318,539		378,057
Total	0	0	0	0
Loans held for investment	318,539		318,539		378,057
Business loans secured by real estate | Franchise real estate secured | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	7,619		7,619		54,654
Fiscal Year before current fiscal year	39,661		39,661		131,541
Two Years before current fiscal year	129,858		129,858		33,513
Three Years before current fiscal year	28,875		28,875		44,229
Four Years before current fiscal year	16,617		16,617		32,815
Prior	78,356		78,356		55,893
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	300,986		300,986		352,645
Business loans secured by real estate | Franchise real estate secured | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		4,891
Fiscal Year before current fiscal year	7,701		7,701		13,145
Two Years before current fiscal year	3,879		3,879		0
Three Years before current fiscal year	0		0		0
Four Years before current fiscal year	823		823		0
Prior	0		0		0
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	12,403		12,403		18,036
Business loans secured by real estate | Franchise real estate secured | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		980
Fiscal Year before current fiscal year	950		950		0
Two Years before current fiscal year	0		0		0
Three Years before current fiscal year	0		0		6,092
Four Years before current fiscal year	3,903		3,903		0
Prior	297		297		304
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	5,150		5,150		7,376
Commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	37,803		37,803		408,941
Fiscal Year before current fiscal year	335,980		335,980		408,923
Two Years before current fiscal year	338,774		338,774		78,071
Three Years before current fiscal year	71,283		71,283		221,057
Four Years before current fiscal year	174,511		174,511		112,268
Prior	237,671		237,671		170,512
Revolving	892,833		892,833		1,172,924
Revolving Converted to Term During the Period	17,540		17,540		4,143
Total	2,106,395		2,106,395		2,576,839
Current fiscal year charge off			0
One year before current fiscal year charge off			282
Two year before current fiscal year charge off			59
Three year before current fiscal year charge off			5
Four year before current fiscal year charge off			289
Prior year before current fiscal year charge off			36
Revolving charge off			677
Revolving Converted to Term During the Period charge off			0
Total			1,348
Loans held for investment	2,106,395		2,106,395		2,576,839
Commercial loans | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,744,763		1,744,763		2,160,948
Total	225	5,381	1,348	7,560
Loans held for investment	1,744,763		1,744,763		2,160,948
Commercial loans | Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	29,948		29,948		282,131
Fiscal Year before current fiscal year	229,282		229,282		262,044
Two Years before current fiscal year	198,520		198,520		55,659
Three Years before current fiscal year	50,242		50,242		155,310
Four Years before current fiscal year	120,448		120,448		78,684
Prior	168,018		168,018		121,918
Revolving	856,579		856,579		1,134,568
Revolving Converted to Term During the Period	3,354		3,354		3,412
Total	1,656,391		1,656,391		2,093,726
Commercial loans | Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		15,105
Fiscal Year before current fiscal year	5,152		5,152		3,567
Two Years before current fiscal year	12,709		12,709		798
Three Years before current fiscal year	0		0		0
Four Years before current fiscal year	561		561		1,864
Prior	0		0		41
Revolving	21,279		21,279		9,898
Revolving Converted to Term During the Period	55		55		0
Total	39,756		39,756		31,273
Commercial loans | Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		2,590
Fiscal Year before current fiscal year	15,310		15,310		80
Two Years before current fiscal year	3,067		3,067		0
Three Years before current fiscal year	694		694		3,867
Four Years before current fiscal year	2		2		562
Prior	1,213		1,213		1,029
Revolving	14,199		14,199		27,680
Revolving Converted to Term During the Period	14,131		14,131		141
Total	48,616		48,616		35,949
Commercial loans | Franchise non-real estate secured
Financing Receivable, Credit Quality Indicator [Line Items]
Total	351,944		351,944		404,791
Total	0	448	0	448
Loans held for investment	351,944		351,944		404,791
Commercial loans | Franchise non-real estate secured | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	7,524		7,524		102,542
Fiscal Year before current fiscal year	79,358		79,358		128,030
Two Years before current fiscal year	122,005		122,005		18,486
Three Years before current fiscal year	17,431		17,431		46,027
Four Years before current fiscal year	39,975		39,975		28,664
Prior	63,563		63,563		43,486
Revolving	776		776		778
Revolving Converted to Term During the Period	0		0		0
Total	330,632		330,632		368,013
Commercial loans | Franchise non-real estate secured | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		1,372
Fiscal Year before current fiscal year	1,346		1,346		14,382
Two Years before current fiscal year	1,767		1,767		0
Three Years before current fiscal year	0		0		11,829
Four Years before current fiscal year	674		674		0
Prior	0		0		0
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	3,787		3,787		27,583
Commercial loans | Franchise non-real estate secured | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		1,757
Fiscal Year before current fiscal year	1,641		1,641		385
Two Years before current fiscal year	354		354		2,852
Three Years before current fiscal year	2,651		2,651		2,256
Four Years before current fiscal year	11,169		11,169		1,637
Prior	1,710		1,710		308
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	17,525		17,525		9,195
Commercial loans | SBA non-real estate secured
Financing Receivable, Credit Quality Indicator [Line Items]
Total	9,688		9,688		11,100
Total	0	0	0	50
Loans held for investment	9,688		9,688		11,100
Commercial loans | SBA non-real estate secured | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	331		331		3,444
Fiscal Year before current fiscal year	3,336		3,336		435
Two Years before current fiscal year	352		352		276
Three Years before current fiscal year	119		119		1,638
Four Years before current fiscal year	1,558		1,558		633
Prior	2,926		2,926		3,124
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	8,622		8,622		9,550
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	555		555		0
Two Years before current fiscal year	0		0		0
Three Years before current fiscal year	146		146		130
Four Years before current fiscal year	124		124		224
Prior	241		241		606
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		590
Total	1,066		1,066		1,550
Retail loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	20		20		0
Fiscal Year before current fiscal year	0		0		6
Two Years before current fiscal year	3		3		193
Three Years before current fiscal year	185		185		11
Four Years before current fiscal year	8		8		22
Prior	46,374		46,374		50,730
Revolving	26,644		26,644		25,319
Revolving Converted to Term During the Period	0		0		0
Total	73,234		73,234		76,281
Current fiscal year charge off			0
One year before current fiscal year charge off			0
Two year before current fiscal year charge off			0
Three year before current fiscal year charge off			0
Four year before current fiscal year charge off			0
Prior year before current fiscal year charge off			983
Revolving charge off			2
Revolving Converted to Term During the Period charge off			0
Total			985
Loans held for investment	73,234		73,234		76,281
Retail loans | Single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Total	70,993		70,993		72,997
Total	0	0	90	0
Loans held for investment	70,993		70,993		72,997
Retail loans | Single family residential | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	20		20		0
Fiscal Year before current fiscal year	0		0		0
Two Years before current fiscal year	0		0		176
Three Years before current fiscal year	172		172		0
Four Years before current fiscal year	0		0		22
Prior	45,491		45,491		49,729
Revolving	25,308		25,308		23,065
Revolving Converted to Term During the Period	0		0		0
Total	70,991		70,991		72,992
Retail loans | Single family residential | 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	2		2		5
Revolving	0		0		0
Revolving Converted to Term During the Period	0		0		0
Total	2		2		5
Retail loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,241		2,241		3,284
Total	890	$ 2	895	$ 2
Loans held for investment	2,241		2,241		3,284
Retail loans | Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
Fiscal Year before current fiscal year	0		0		6
Two Years before current fiscal year	3		3		17
Three Years before current fiscal year	13		13		11
Four Years before current fiscal year	8		8		0
Prior	881		881		969
Revolving	1,336		1,336		2,254
Revolving Converted to Term During the Period	0		0		0
Total	$ 2,241		$ 2,241		3,257
Retail loans | Consumer | Substandard
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					27
Revolving					0
Revolving Converted to Term During the Period					0
Total					$ 27

Loans Held for Investment - Del

Loans Held for Investment - Delinquencies (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	$ 13,663,412	$ 14,738,224
Basis adjustment associated with fair value hedge
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	13,663,412	14,738,224
Basis adjustment associated with fair value hedge	53,130	61,926
Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	13,632,461	14,694,876
30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	649	20,538
60-89
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	31	185
90+
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	30,271	22,625
Investor loans secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	8,826,439	9,213,516
Investor loans secured by real estate | CRE non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,571,246	2,660,321
Investor loans secured by real estate | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	5,788,030	6,112,026
Investor loans secured by real estate | Construction and land
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	428,287	399,034
Investor loans secured by real estate | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	38,876	42,135
Investor loans secured by real estate | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	8,824,346	9,200,307
Investor loans secured by real estate | Current | CRE non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,569,680	2,655,892
Investor loans secured by real estate | Current | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	5,788,030	6,103,246
Investor loans secured by real estate | Current | Construction and land
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	428,287	399,034
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	38,349	42,135
Investor loans secured by real estate | 30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	527	2,723
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	2,723
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	527	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	1,566	10,486
Investor loans secured by real estate | 90+ | CRE non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,566	4,429
Investor loans secured by real estate | 90+ | Multifamily
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	6,057
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	0	0
Business loans secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,657,344	2,871,588
Business loans secured by real estate | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	57,084	61,368
Business loans secured by real estate | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,281,721	2,432,163
Business loans secured by real estate | Franchise real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	318,539	378,057
Business loans secured by real estate | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,651,305	2,855,335
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	55,778	60,177
Business loans secured by real estate | Current | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,276,988	2,424,174
Business loans secured by real estate | Current | Franchise real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	318,539	370,984
Business loans secured by real estate | 30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	8,507
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	0
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	1,434
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	7,073
Business loans secured by real estate | 60-89
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	104
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	104
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	6,039	7,642
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	1,306	1,087
Business loans secured by real estate | 90+ | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	4,733	6,555
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	2,106,395	2,576,839
Commercial loans | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,744,763	2,160,948
Commercial loans | Franchise non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	351,944	404,791
Commercial loans | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	9,688	11,100
Commercial loans | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,083,576	2,564,012
Commercial loans | Current | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	1,722,499	2,152,302
Commercial loans | Current | Franchise non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	351,944	401,199
Commercial loans | Current | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	9,133	10,511
Commercial loans | 30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	122	8,249
Commercial loans | 30-59 | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	122	4,657
Commercial loans | 30-59 | Franchise non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	3,592
Commercial loans | 30-59 | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	0
Commercial loans | 60-89
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	31	81
Commercial loans | 60-89 | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	31	81
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	22,666	4,497
Commercial loans | 90+ | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	22,111	3,908
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	555	589
Retail loans
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	73,234	76,281
Retail loans | Single family residential
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	70,993	72,997
Retail loans | Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,241	3,284
Retail loans | Current
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	73,234	75,222
Retail loans | Current | Single family residential
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	70,993	71,940
Retail loans | Current | Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	2,241	3,282
Retail loans | 30-59
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	1,059
Retail loans | 30-59 | Single family residential
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	1,057
Retail loans | 30-59 | Consumer
Financing Receivable, Past Due [Line Items]
Loans held for investment before basis adjustment	0	2
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	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	$ 17,151	$ 30,905
Collateral Dependent Loans, ACL	4,000	1,742
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	17,151	30,905
Nonaccrual Loans with No ACL	13,151	29,163
Investor loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	2,071	13,742
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	2,071	13,742
Nonaccrual Loans with No ACL	2,071	13,742
Investor loans secured by real estate | CRE non-owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	1,566	4,429
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	1,566	4,429
Nonaccrual Loans with No ACL	1,566	4,429
Investor loans secured by real estate | Multifamily
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance		8,780
Collateral Dependent Loans, ACL		0
Non-Collateral Dependent Loans, Balance		0
Non-Collateral Dependent Loans, ACL		0
Total Nonaccrual Loans		8,780
Nonaccrual Loans with No ACL		8,780
Investor loans secured by real estate | SBA secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	505	533
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	505	533
Nonaccrual Loans with No ACL	505	533
Business loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	10,290	12,666
Collateral Dependent Loans, ACL	0	1,742
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	10,290	12,666
Nonaccrual Loans with No ACL	10,290	10,924
Business loans secured by real estate | SBA secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	1,306	1,191
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	1,306	1,191
Nonaccrual Loans with No ACL	1,306	1,191
Business loans secured by real estate | CRE owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	8,984	11,475
Collateral Dependent Loans, ACL	0	1,742
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	8,984	11,475
Nonaccrual Loans with No ACL	8,984	9,733
Commercial loans
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	4,790	4,497
Collateral Dependent Loans, ACL	4,000	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	4,790	4,497
Nonaccrual Loans with No ACL	790	4,497
Commercial loans | Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	4,235	3,908
Collateral Dependent Loans, ACL	4,000	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	4,235	3,908
Nonaccrual Loans with No ACL	235	3,908
Commercial loans | SBA non-real estate secured
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	555	589
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	555	589
Nonaccrual Loans with No ACL	$ 555	$ 589

Loans Held for Investment - Amo

Loans Held for Investment - Amortized Cost of the MLTB (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance	$ 0	$ 851,000
Business loans secured by real estate | CRE owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance		$ 851,000
Percent of Total Class of Loans		0.04%

Loans Held for Investment - Fin

Loans Held for Investment - Financial Effect of the Modification (Details)	6 Months Ended
	Jun. 30, 2023
Business loans secured by real estate | CRE owner-occupied | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Extended term	4 months

Loans Held for Investment - Col

Loans Held for Investment - Collateral Dependent Loans by Collateral Type (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	$ 17,151	$ 30,905
Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	5,380	4,521
Industrial Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,111	1,087
Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	632	463
Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,968	5,051
Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	505	533
Multifamily Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	8,780
Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	6,701
Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,555	3,769
Investor loans secured by real estate
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	2,071	13,742
Investor loans secured by real estate | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,129	0
Investor loans secured by real estate | Industrial Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	437	463
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	505	533
Investor loans secured by real estate | Multifamily Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	8,780
Investor loans secured by real estate | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	3,966
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
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,566	4,429
Investor loans secured by real estate | CRE non-owner-occupied | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,129	0
Investor loans secured by real estate | CRE non-owner-occupied | Industrial Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Investor loans secured by real estate | CRE non-owner-occupied | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	437	463
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 | Multifamily 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	0	3,966
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 | Multifamily
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		8,780
Investor loans secured by real estate | Multifamily | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		0
Investor loans secured by real estate | Multifamily | Industrial Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		0
Investor loans secured by real estate | Multifamily | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		0
Investor loans secured by real estate | Multifamily | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		0
Investor loans secured by real estate | Multifamily | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		0
Investor loans secured by real estate | Multifamily | Multifamily Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		8,780
Investor loans secured by real estate | Multifamily | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		0
Investor loans secured by real estate | Multifamily | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans		0
Investor loans secured by real estate | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	505	533
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 | Industrial 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	505	533
Investor loans secured by real estate | SBA secured by real estate | Multifamily Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
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
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	10,290	12,666
Business loans secured by real estate | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,251	4,521
Business loans secured by real estate | Industrial Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,111	1,087
Business loans secured by real estate | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	195	0
Business loans secured by real estate | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,733	4,813
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 | Multifamily 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	2,245
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 | SBA secured by real estate
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,306	1,191
Business loans secured by real estate | SBA secured by real estate | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	104
Business loans secured by real estate | SBA secured by real estate | Industrial Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	1,111	1,087
Business loans secured by real estate | SBA secured by real estate | Retail Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	195	0
Business loans secured by real estate | SBA secured by real estate | Land Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | SBA secured by real estate | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | SBA secured by real estate | Multifamily Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business loans secured by real estate | SBA secured by real estate | Other CRE Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Business 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 | CRE owner-occupied
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	8,984	11,475
Business loans secured by real estate | CRE owner-occupied | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,251	4,417
Business loans secured by real estate | CRE owner-occupied | Industrial Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
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	4,733	4,813
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 | Multifamily 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	2,245
Business loans secured by real estate | CRE owner-occupied | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,790	4,497
Commercial loans | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Industrial 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	235	238
Commercial loans | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Multifamily 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	490
Commercial loans | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,555	3,769
Commercial loans | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,235	3,908
Commercial loans | Commercial and industrial | Office Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Commercial and industrial | Industrial 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	235	238
Commercial loans | Commercial and industrial | Hotel Properties
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	0	0
Commercial loans | Commercial and industrial | Multifamily 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	490
Commercial loans | Commercial and industrial | Business Assets
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	4,000	3,180
Commercial loans | SBA non-real estate secured
Financing Receivable, Past Due [Line Items]
Collateral dependent loans	555	589
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 | Industrial 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 | Multifamily 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	$ 555	$ 589

Allowance for Credit Losses - A

Allowance for Credit Losses - Allocation of Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	$ 195,388	$ 197,517	$ 195,651	$ 197,752
Charge-offs	(3,986)	(5,831)	(7,650)	(8,130)
Recoveries	321	586	701	2,439
Provision for Credit Losses	610	3,803	3,631	4,014
Ending ACL Balance	192,333	196,075	192,333	196,075
Investor loans secured by real estate
Allocation of allowance as well as the activity in allowance
Charge-offs			(2,947)
Investor loans secured by real estate | CRE non-owner-occupied
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	31,715	35,974	33,692	37,380
Charge-offs	(2,591)	0	(2,657)	0
Recoveries	0	0	15	0
Provision for Credit Losses	2,421	1,247	495	(159)
Ending ACL Balance	31,545	37,221	31,545	37,221
Investor loans secured by real estate | Multifamily
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	57,787	54,325	56,334	55,209
Charge-offs	(73)	0	(290)	0
Recoveries	1	0	1	0
Provision for Credit Losses	(2,067)	1,968	(397)	1,084
Ending ACL Balance	55,648	56,293	55,648	56,293
Investor loans secured by real estate | Construction and land
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	7,672	5,219	7,114	5,211
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for Credit Losses	35	217	593	225
Ending ACL Balance	7,707	5,436	7,707	5,436
Investor loans secured by real estate | SBA secured by real estate
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	2,291	3,050	2,592	3,201
Charge-offs	0	0	0	(70)
Recoveries	0	0	0	0
Provision for Credit Losses	40	(185)	(261)	(266)
Ending ACL Balance	2,331	2,865	2,331	2,865
Business loans secured by real estate
Allocation of allowance as well as the activity in allowance
Charge-offs			(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	4,415	5,195	4,348	4,866
Charge-offs	0	0	0	0
Recoveries	80	0	80	0
Provision for Credit Losses	16	(46)	83	283
Ending ACL Balance	4,511	5,149	4,511	5,149
Business loans secured by real estate | CRE owner-occupied
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	29,334	31,891	32,340	29,575
Charge-offs	(207)	0	(2,370)	0
Recoveries	12	4	24	14
Provision for Credit Losses	(624)	(434)	(1,479)	1,872
Ending ACL Balance	28,515	31,461	28,515	31,461
Business loans secured by real estate | Franchise real estate secured
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	7,790	7,977	7,019	7,985
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for Credit Losses	(935)	(1,447)	(164)	(1,455)
Ending ACL Balance	6,855	6,530	6,855	6,530
Commercial loans
Allocation of allowance as well as the activity in allowance
Charge-offs			(1,348)
Commercial loans | Commercial and industrial
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	37,659	38,598	35,169	38,136
Charge-offs	(225)	(5,381)	(1,348)	(7,560)
Recoveries	169	533	380	2,374
Provision for Credit Losses	1,983	3,298	5,385	4,098
Ending ACL Balance	39,586	37,048	39,586	37,048
Commercial loans | Franchise non-real estate secured
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	15,721	14,304	16,029	15,084
Charge-offs	0	(448)	0	(448)
Recoveries	0	0	100	0
Provision for Credit Losses	(1,079)	(732)	(1,487)	(1,512)
Ending ACL Balance	14,642	13,124	14,642	13,124
Commercial loans | SBA non-real estate secured
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	401	490	441	565
Charge-offs	0	0	0	(50)
Recoveries	59	16	65	18
Provision for Credit Losses	(61)	(54)	(107)	(81)
Ending ACL Balance	399	452	399	452
Retail loans
Allocation of allowance as well as the activity in allowance
Charge-offs			(985)
Retail loans | Single family residential
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	392	233	352	255
Charge-offs	0	0	(90)	0
Recoveries	0	33	1	33
Provision for Credit Losses	63	12	192	(10)
Ending ACL Balance	455	278	455	278
Retail loans | Consumer
Allocation of allowance as well as the activity in allowance
Beginning ACL Balance	211	261	221	285
Charge-offs	(890)	(2)	(895)	(2)
Recoveries	0	0	35	0
Provision for Credit Losses	818	(41)	778	(65)
Ending ACL Balance	$ 139	$ 218	$ 139	$ 218

Allowance for Credit Losses - N

Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Allowance for Credit Loss [Abstract]
Decrease in ACL during period	$ 3,100	$ 1,400	$ (3,300)	$ 1,700
Net charge-offs	3,700	5,200	6,900	5,700
Provision for credit losses	610	3,800	3,600	4,000
Allowance for off-balance sheet commitments	24,455	24,106	24,455	24,106	$ 23,452	$ 23,641	$ 27,508	$ 27,290
Provision for credit losses for off-balance sheet commitments	$ 1,003	$ (3,402)	$ 814	$ (3,184)

Allowance for Credit Losses - O

Allowance for Credit Losses - Off-balance Sheet Commitments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning ACL balance	$ 23,452	$ 27,508	$ 23,641	$ 27,290
Provision for credit losses for off-balance sheet commitments	1,003	(3,402)	814	(3,184)
Ending ACL balance	$ 24,455	$ 24,106	$ 24,455	$ 24,106

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Dec. 31, 2022
Goodwill [Line Items]
Goodwill	$ 901,312,000		$ 901,312,000	$ 901,312,000
Goodwill adjustments during period	0	$ 0
Accumulated impairment loss	0		0
Net intangible assets	49,362,000	$ 62,500,000	49,362,000	55,600,000
Estimated amortization expense for 2023				12,300,000
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
Core Deposits
Goodwill [Line Items]
Net intangible assets	47,200,000		$ 47,200,000	53,200,000
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	$ 2,200,000		$ 2,200,000	$ 2,400,000

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Finite-Lived Intangible Assets Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
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	(92,795)	(79,234)	(89,624)	(75,641)
Amortization	(3,055)	(3,478)	(6,226)	(7,071)
Ending balance	(95,850)	(82,712)	(95,850)	(82,712)
Net intangible assets	$ 49,362	$ 62,500	$ 49,362	$ 62,500	$ 55,600

Subordinated Debentures - Narra

Subordinated Debentures - Narrative (Details) $ in Thousands	Jun. 30, 2023 USD ($) note	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Subordinated debentures	$ 331,523	$ 331,204
Increase to carrying value of subordinated debt	$ 319
Subordinated notes
Debt Instrument [Line Items]
Number of notes/securities | note	3
Subordinated debentures	$ 331,523	$ 331,204
Weighted interest rate (as a percent)	5.31%	5.32%

Subordinated Debentures - Summa

Subordinated Debentures - Summary (Details) - USD ($)	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Carrying Value	$ 331,523,000	$ 331,204,000
Subordinated notes
Debt Instrument [Line Items]
Face amount of debt instrument	335,000,000
Carrying Value	$ 331,523,000	331,204,000
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)	5.75%
Face amount of debt instrument	$ 60,000,000
Carrying Value	$ 59,850,000	59,791,000
Subordinated notes | Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month LIBOR +2.5% thereafter
Debt Instrument [Line Items]
Fixed interest rate (as a percent)	4.875%
Current Interest Rate (as a percent)	4.875%
Face amount of debt instrument	$ 125,000,000
Carrying Value	$ 123,514,000	123,386,000
Subordinated notes | Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month LIBOR +2.5% thereafter | London Interbank Offered Rate
Debt Instrument [Line Items]
Variable rate (as a percent)	2.50%
Subordinated notes | Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month SOFR +5.170% thereafter
Debt Instrument [Line Items]
Fixed interest rate (as a percent)	5.375%
Current Interest Rate (as a percent)	5.375%
Face amount of debt instrument	$ 150,000,000
Carrying Value	$ 148,159,000	$ 148,027,000
Subordinated notes | Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month SOFR +5.170% thereafter | 3-month SOFR
Debt Instrument [Line Items]
Variable rate (as a percent)	5.17%

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Basic
Net income	$ 57,636	$ 69,803	$ 120,198	$ 136,707
Less: dividends and undistributed earnings allocated to participating securities	(995)	(867)	(1,829)	(1,545)
Net income allocated to common stockholders	$ 56,641	$ 68,936	$ 118,369	$ 135,162
Weighted average common shares outstanding (in shares)	94,166,083	93,765,264	94,012,799	93,633,213
Basic earnings per common share (in dollars per share)	$ 0.60	$ 0.74	$ 1.26	$ 1.44
Diluted
Net income allocated to common stockholders	$ 56,641	$ 68,936	$ 118,369	$ 135,162
Weighted average common shares outstanding (in shares)	94,166,083	93,765,264	94,012,799	93,633,213
Dilutive effect of share-based compensation (in shares)	49,884	275,427	179,542	349,844
Weighted average diluted common shares (in shares)	94,215,967	94,040,691	94,192,341	93,983,057
Diluted earnings per common share (in dollars per share)	$ 0.60	$ 0.73	$ 1.26	$ 1.44
Weighted-average shares of anti-dilutive RSUs excluded from diluted EPS computation	151,379	0	42,469	0

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Hierarchy Table on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financial assets
Investment securities available-for-sale, at fair value	$ 2,011,791	$ 2,601,013
Total derivative assets	67,994	78,129
Financial liabilities
Total derivative liabilities	12,158	12,598
U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	13,104	47,017
Agency
Financial assets
Investment securities available-for-sale, at fair value	413,855	431,438
Corporate
Financial assets
Investment securities available-for-sale, at fair value	498,119	542,548
Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	327,257	764,229
Mortgage-backed securities
Financial assets
Investment securities available-for-sale, at fair value	759,456	815,781
Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	889	925
Total derivative assets	2	1
Financial liabilities
Total derivative liabilities	0	1
Level 2
Financial assets
Investment securities available-for-sale, at fair value	2,011,791	2,601,013
Equity securities	0	0
Total derivative assets	6,895	7,053
Financial liabilities
Total derivative liabilities	12,267	12,530
Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	0	0
Total derivative assets	407	1,894
Financial liabilities
Total derivative liabilities	0	0
Recurring
Financial assets
Investment securities available-for-sale, at fair value	2,011,791	2,601,013
Equity securities	889	13,526
Total derivative assets	7,304	8,948
Financial liabilities
Total derivative liabilities	12,267	12,531
Equity securities that are measured at NAV		12,600
Recurring | Foreign exchange contracts
Financial assets
Total derivative assets	2	1
Financial liabilities
Total derivative liabilities		1
Recurring | Interest rate swaps contracts
Financial assets
Total derivative assets	6,895	7,053
Financial liabilities
Total derivative liabilities	12,267	12,530
Recurring | Equity warrants
Financial assets
Total derivative assets	407	1,894
Recurring | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	13,104	47,017
Recurring | Agency
Financial assets
Investment securities available-for-sale, at fair value	413,855	431,438
Recurring | Corporate
Financial assets
Investment securities available-for-sale, at fair value	498,119	542,548
Recurring | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	327,257	764,229
Recurring | Mortgage-backed securities
Financial assets
Investment securities available-for-sale, at fair value	759,456	815,781
Recurring | Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	889	925
Total derivative assets	2	1
Financial liabilities
Total derivative liabilities	0	1
Recurring | Level 1 | Foreign exchange contracts
Financial assets
Total derivative assets	2	1
Financial liabilities
Total derivative liabilities		1
Recurring | Level 1 | Interest rate swaps contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 1 | Equity warrants
Financial assets
Total derivative assets	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 1 | Mortgage-backed securities
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	2,011,791	2,601,013
Equity securities	0	0
Total derivative assets	6,895	7,053
Financial liabilities
Total derivative liabilities	12,267	12,530
Recurring | Level 2 | Foreign exchange contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities		0
Recurring | Level 2 | Interest rate swaps contracts
Financial assets
Total derivative assets	6,895	7,053
Financial liabilities
Total derivative liabilities	12,267	12,530
Recurring | Level 2 | Equity warrants
Financial assets
Total derivative assets	0	0
Recurring | Level 2 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	13,104	47,017
Recurring | Level 2 | Agency
Financial assets
Investment securities available-for-sale, at fair value	413,855	431,438
Recurring | Level 2 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	498,119	542,548
Recurring | Level 2 | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	327,257	764,229
Recurring | Level 2 | Mortgage-backed securities
Financial assets
Investment securities available-for-sale, at fair value	759,456	815,781
Recurring | Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	0	0
Total derivative assets	407	1,894
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
Recurring | Level 3 | Interest rate swaps contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 3 | Equity warrants
Financial assets
Total derivative assets	407	1,894
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
Recurring | Level 3 | Mortgage-backed securities
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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 412	$ 1,908	$ 1,894	$ 1,889
Change in fair value	(5)	(2)	(25)	17
Net exercise	0	0	(1,462)	0
Ending balance	$ 407	$ 1,906	$ 407	$ 1,906

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Quantitative Information for Level 3 Fair Value Measurements (Details) $ in Thousands	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned	$ 270	$ 0
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	12,799,845	13,846,403
Recurring | Level 3 | Black-Scholes option pricing model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants	$ 407	$ 1,894
Recurring | Level 3 | Black-Scholes option pricing model | Volatility | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.3500	0.3000
Recurring | Level 3 | Black-Scholes option pricing model | Volatility | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.3500	0.3500
Recurring | Level 3 | Black-Scholes option pricing model | Volatility | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.3500	0.3114
Recurring | Level 3 | Black-Scholes option pricing model | Risk free interest rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0487	0.0432
Recurring | Level 3 | Black-Scholes option pricing model | Risk free interest rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0487	0.0441
Recurring | Level 3 | Black-Scholes option pricing model | Risk free interest rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0487	0.0439
Recurring | Level 3 | Black-Scholes option pricing model | Marketability Discount | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0550	0.0600
Recurring | Level 3 | Black-Scholes option pricing model | Marketability Discount | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0550	0.1600
Recurring | Level 3 | Black-Scholes option pricing model | Marketability Discount | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0550	0.1360
Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value		$ 3,180
Other real estate owned	$ 270
Nonrecurring | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value		3,180
Other real estate owned	270
Total assets	270
Nonrecurring | Level 3 | Fair value of collateral | Commercial loans | Commercial and industrial
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value		$ 3,180
Nonrecurring | Level 3 | Fair value of collateral | Commercial loans | Commercial and industrial | Collateral discount and cost to sell | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0600
Nonrecurring | Level 3 | Fair value of collateral | Commercial loans | Commercial and industrial | Collateral discount and cost to sell | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0600
Nonrecurring | Level 3 | Fair value of collateral | Commercial loans | Commercial and industrial | Collateral discount and cost to sell | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0600
Nonrecurring | Level 3 | Fair value of property
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned	$ 270
Nonrecurring | Level 3 | Fair value of property | Cost to sell | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input	0.1000
Nonrecurring | Level 3 | Fair value of property | Cost to sell | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input	0.1000
Nonrecurring | Level 3 | Fair value of property | Cost to sell | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input	0.1000

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Narrative (Details) - Discount Rate	Jun. 30, 2023
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_7

Fair Value of Financial Instruments - Hierarchy Table on Nonrecurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value Disclosures
Other real estate owned	$ 270	$ 0
Level 1
Fair Value Disclosures
Collateral dependent loans/Impaired loans	0	0
Level 2
Fair Value Disclosures
Collateral dependent loans/Impaired loans	0	0
Level 3
Fair Value Disclosures
Collateral dependent loans/Impaired loans	12,799,845	13,846,403
Nonrecurring
Fair Value Disclosures
Other real estate owned	270
Collateral dependent loans/Impaired loans		3,180
Nonrecurring | Level 1
Fair Value Disclosures
Other real estate owned	0
Collateral dependent loans/Impaired loans		0
Nonrecurring | Level 2
Fair Value Disclosures
Other real estate owned	0
Collateral dependent loans/Impaired loans		0
Nonrecurring | Level 3
Fair Value Disclosures
Other real estate owned	270
Collateral dependent loans/Impaired loans		$ 3,180
Total assets	$ 270

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Fair Value Estimates (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Assets
HTM investment securities	$ 1,458,287	$ 1,097,096
AFS investment securities	2,011,791	2,601,013
Derivative Assets	67,994	78,129
Accrued interest receivable	70,093	73,784
Liabilities
Derivative Liabilities	12,158	12,598
Recurring
Assets
AFS investment securities	2,011,791	2,601,013
Equity securities	889	13,526
Derivative Assets	7,304	8,948
Liabilities
Derivative Liabilities	12,267	12,531
Equity securities that are measured at NAV		12,600
Level 1
Assets
Cash and cash equivalents	1,463,677	1,101,249
HTM investment securities	0	0
AFS investment securities	0	0
Equity securities	889	925
Loans held for sale	0	0
Loans held for investment, net	0	0
Derivative Assets	2	1
Accrued interest receivable	0	0
Liabilities
Deposit accounts	0	0
FHLB advances	0	0
Subordinated debentures	0	0
Derivative Liabilities	0	1
Accrued interest payable	0	0
Level 1 | Recurring
Assets
AFS investment securities	0	0
Equity securities	889	925
Derivative Assets	2	1
Liabilities
Derivative Liabilities	0	1
Level 1 | Interest-bearing time deposits with financial institutions
Assets
Cash and cash equivalents	1,487	1,734
Level 2
Assets
Cash and cash equivalents	0	0
HTM investment securities	1,458,287	1,097,096
AFS investment securities	2,011,791	2,601,013
Equity securities	0	0
Loans held for sale	2,269	2,755
Loans held for investment, net	0	0
Derivative Assets	6,895	7,053
Accrued interest receivable	70,093	73,784
Liabilities
Deposit accounts	16,537,940	17,334,219
FHLB advances	783,889	982,695
Subordinated debentures	320,471	327,609
Derivative Liabilities	12,267	12,530
Accrued interest payable	27,249	14,661
Level 2 | Recurring
Assets
AFS investment securities	2,011,791	2,601,013
Equity securities	0	0
Derivative Assets	6,895	7,053
Liabilities
Derivative Liabilities	12,267	12,530
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 sale	0	0
Loans held for investment, net	12,799,845	13,846,403
Derivative Assets	407	1,894
Accrued interest receivable	0	0
Liabilities
Deposit accounts	0	0
FHLB advances	0	0
Subordinated debentures	0	0
Derivative Liabilities	0	0
Accrued interest payable	0	0
Level 3 | Recurring
Assets
AFS investment securities	0	0
Equity securities	0	0
Derivative Assets	407	1,894
Liabilities
Derivative Liabilities	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	1,463,677	1,101,249
HTM investment securities	1,737,604	1,388,103
AFS investment securities	2,011,791	2,601,013
Equity securities	889	13,526
Loans held for sale	2,184	2,643
Loans held for investment, net	13,610,282	14,676,298
Derivative Assets	7,304	8,948
Accrued interest receivable	70,093	73,784
Liabilities
Deposit accounts	16,539,875	17,352,401
FHLB advances	800,000	1,000,000
Subordinated debentures	331,523	331,204
Derivative Liabilities	12,267	12,531
Accrued interest payable	27,249	14,661
Carrying Amount | Interest-bearing time deposits with financial institutions
Assets
Cash and cash equivalents	1,487	1,734
Estimated Fair Value
Assets
Cash and cash equivalents	1,463,677	1,101,249
HTM investment securities	1,458,287	1,097,096
AFS investment securities	2,011,791	2,601,013
Equity securities	889	13,526
Loans held for sale	2,269	2,755
Loans held for investment, net	12,799,845	13,846,403
Derivative Assets	7,304	8,948
Accrued interest receivable	70,093	73,784
Liabilities
Deposit accounts	16,537,940	17,334,219
FHLB advances	783,889	982,695
Subordinated debentures	320,471	327,609
Derivative Liabilities	12,267	12,531
Accrued interest payable	27,249	14,661
Estimated Fair Value | Interest-bearing time deposits with financial institutions
Assets
Cash and cash equivalents	$ 1,487	$ 1,734

Derivative Instruments - Cumula

Derivative Instruments - Cumulative Basis Adjustment for Fair Value Hedges (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Carrying Amount of the Hedged Assets	$ 1,146,870	$ 1,138,074
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	(53,130)	(61,926)
Derivative assets, notional	1,309,131	1,012,146
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets, notional	1,200,000	900,000
Designated as Hedging Instrument | Interest rate swaps contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets, notional	1,200,000	1,200,000
Loans held for investment
Derivative Instruments, Gain (Loss) [Line Items]
Carrying Amount of the Hedged Assets	1,146,870	1,138,074
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	(53,130)	(61,926)
Loans held for investment | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amortized Cost used in hedging relationships	3,140,000	3,350,000
Cumulative basis adjustments associated with hedging relationships	(53,100)	(61,900)
Loans held for investment | Designated as Hedging Instrument | Interest rate swaps contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets, notional	$ 1,200,000	$ 1,200,000

Derivative Instruments - Summar

Derivative Instruments - Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative assets, notional	$ 1,309,131	$ 1,012,146
Derivative assets	67,994	78,129
Derivative asset, netting adjustments - cleared positions	60,690	69,181
Derivative asset, net derivatives in the balance sheet	$ 7,304	$ 8,948
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative liabilities, notional	$ 109,338	$ 412,267
Total derivative liabilities	12,158	12,598
Derivative liabilities netting adjustments - cleared positions	109	67
Derivative liabilities, net derivatives in the balance sheet	$ 12,267	$ 12,531
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other liabilities	Accrued expenses and other liabilities
Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets, notional	$ 1,200,000	$ 900,000
Derivative assets	55,428	63,710
Derivative liabilities, notional	0	300,000
Total derivative liabilities	0	72
Designated as Hedging Instrument | Fair value hedge - interest rate swap contracts
Derivative [Line Items]
Derivative assets, notional	1,200,000	900,000
Derivative assets	55,428	63,710
Derivative liabilities, notional	0	300,000
Total derivative liabilities	0	72
Designated as Hedging Instrument | Interest rate swaps contracts
Derivative [Line Items]
Derivative assets, notional	1,200,000	1,200,000
Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative assets, notional	109,131	112,146
Derivative assets	12,566	14,419
Derivative liabilities, notional	109,338	112,267
Total derivative liabilities	12,158	12,526
Not Designated as Hedging Instruments | Foreign exchange contracts
Derivative [Line Items]
Derivative assets, notional	76	22
Derivative assets	2	1
Derivative liabilities, notional	283	143
Total derivative liabilities	0	1
Not Designated as Hedging Instruments | Interest rate swaps contracts
Derivative [Line Items]
Derivative assets, notional	109,055	112,124
Derivative assets	12,157	12,524
Derivative liabilities, notional	109,055	112,124
Total derivative liabilities	12,158	12,525
Not Designated as Hedging Instruments | Equity warrants
Derivative [Line Items]
Derivative assets, notional	0	0
Derivative assets	407	1,894
Derivative liabilities, notional	0	0
Total derivative liabilities	$ 0	$ 0

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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Gain (loss) on fair value hedging relationships:
Derivatives designated as hedging instruments	$ (272)	$ 77	$ (303)	$ 143
Interest Income
Gain (loss) on fair value hedging relationships:
Hedged items	(3,125)	(11,866)	8,796	(45,790)
Derivatives designated as hedging instruments	12,896	12,082	9,310	44,339
Other income | Foreign exchange contracts
Gain (loss) on fair value hedging relationships:
Derivatives designated as hedging instruments	263	77	483	123
Other income | Interest rate products
Gain (loss) on fair value hedging relationships:
Derivatives designated as hedging instruments	0	2	0	3
Other income | Equity warrants
Gain (loss) on fair value hedging relationships:
Derivatives designated as hedging instruments	$ (535)	$ (2)	$ (786)	$ 17

Balance Sheet Offsetting (Detai

Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivative assets:
Gross Amounts Recognized	$ 6,895	$ 7,053
Gross Amounts Offset in the Consolidated Statements of Financial Condition	0	0
Net Amounts Presented in the Consolidated Statements of Financial Condition	6,895	7,053
Financial Instruments	0	0
Cash Collateral	(5,330)	(5,440)
Net Amount	1,565	1,613
Derivative liabilities:
Gross Amounts Recognized	12,267	12,530
Gross Amounts Offset in the Consolidated Statements of Financial Condition	0	0
Net Amounts Presented in the Consolidated Statements of Financial Condition	12,267	12,530
Financial Instruments	0	0
Cash Collateral	0	0
Net Amount	12,267	12,530
Interest rate swaps contracts
Derivative assets:
Gross Amounts Recognized	6,895	7,053
Gross Amounts Offset in the Consolidated Statements of Financial Condition	0	0
Net Amounts Presented in the Consolidated Statements of Financial Condition	6,895	7,053
Financial Instruments	0	0
Cash Collateral	(5,330)	(5,440)
Net Amount	1,565	1,613
Derivative liabilities:
Gross Amounts Recognized	12,267	12,530
Gross Amounts Offset in the Consolidated Statements of Financial Condition	0	0
Net Amounts Presented in the Consolidated Statements of Financial Condition	12,267	12,530
Financial Instruments	0	0
Cash Collateral	0	0
Net Amount	$ 12,267	$ 12,530

Variable Interest Entities - Su

Variable Interest Entities - Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
AFS investment securities	$ 2,011,791	$ 2,601,013
Accrued expenses and other liabilities	227,351	206,023
Other assets	275,113	253,871
Assets	20,747,883	21,688,017
Liabilities	17,898,749	18,889,628
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Maximum Loss	155,841	168,216
Assets	127,371	132,743
Liabilities	22,766	15,762
Variable Interest Entity, Not Primary Beneficiary | Multifamily Loan Securitization, Asset
Variable Interest Entity [Line Items]
Maximum Loss	51,301	56,784
AFS investment securities	51,301	56,784
Variable Interest Entity, Not Primary Beneficiary | Multifamily Loan Securitization, Liability
Variable Interest Entity [Line Items]
Maximum Loss	50,901	50,901
Accrued expenses and other liabilities	334	334
Variable Interest Entity, Not Primary Beneficiary | Affordable Housing Partnership, Asset
Variable Interest Entity [Line Items]
Maximum Loss	53,639	60,531
Other assets	76,070	75,959
Variable Interest Entity, Not Primary Beneficiary | Affordable Housing Partnership, Liability
Variable Interest Entity [Line Items]
Maximum Loss	0	0
Accrued expenses and other liabilities	$ 22,432	$ 15,428

Variable Interest Entities - Na

Variable Interest Entities - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Accrued liabilities and other liabilities	$ 227,351	$ 206,023
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Maximum Loss	$ 155,841	168,216
Variable Interest Entity, Not Primary Beneficiary | Multifamily Loan Securitization, Liability
Variable Interest Entity [Line Items]
Maximum loss, percentage of loans	10%
Maximum Loss	$ 50,901	50,901
Accrued liabilities and other liabilities	334	334
Variable Interest Entity, Not Primary Beneficiary | Multifamily Loan Securitization
Variable Interest Entity [Line Items]
Accrued liabilities and other liabilities	$ 334	$ 334

Subsequent Events (Details)

Subsequent Events (Details)			3 Months Ended		6 Months Ended
	Jul. 25, 2023 $ / shares	Jul. 12, 2023 USD ($) numberOfSwap	Jun. 30, 2023 $ / shares	Jun. 30, 2022 $ / shares	Jun. 30, 2023 $ / shares	Jun. 30, 2022 $ / shares
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share) | $ / shares			$ 0.33	$ 0.33	$ 0.66	$ 0.66
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share) | $ / shares	$ 0.33
Subsequent Event | Interest rate swaps contracts | Fair Value Hedging | Designated as Hedging Instrument
Subsequent Event [Line Items]
Number of interest rate derivatives | numberOfSwap		2
Notional amount of derivatives		$ 300,000,000
Subsequent Event | Interest Rate Swap One | Fair Value Hedging | Designated as Hedging Instrument
Subsequent Event [Line Items]
Notional amount of derivatives		$ 150,000,000
Derivative, term of contract		15 months
Subsequent Event | Interest Rate Swap Two | Fair Value Hedging | Designated as Hedging Instrument
Subsequent Event [Line Items]
Notional amount of derivatives		$ 150,000,000
Derivative, term of contract		18 months