Hope Bancorp (HOPE) 10-K 28 Feb 23 2022 FY Annual report Financial data

Cover

Cover - USD ($)	12 Months Ended
	Dec. 31, 2022	Feb. 21, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	000-50245
Entity Registrant Name	HOPE BANCORP, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-4849715
Entity Address, Address Line One	3200 Wilshire Boulevard,
Entity Address, Address Line Two	Suite 1400
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90010
City Area Code	213
Local Phone Number	639-1700
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	HOPE
Security Exchange Name	NASDAQ
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
Entity Common Stock, Shares Outstanding (in shares)		119,498,107
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Central Index Key	0001128361
Entity Public Float			$ 1,574,584,883
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
ICFR Auditor Attestation Flag	true

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2022
Auditor Information [Abstract]
Auditor Firm ID	173
Auditor Name	Crowe LLP
Auditor Location	Los Angeles, California

Consolidated Statements Of Fina

Consolidated Statements Of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Cash and cash equivalents:
Cash and due from banks	$ 213,774	$ 271,319
Interest bearing cash in other banks	293,002	44,947
Total cash and cash equivalents	506,776	316,266
Interest bearing deposits in other financial institutions	735	12,851
Investment securities available for sale, at fair value	1,972,129	2,666,275
Investment securities held to maturity, at amortized cost	271,066	0
Equity investments	42,396	57,860
Loans held for sale, at the lower of cost or fair value	49,245	99,049
Loans receivable, net of allowance for credit losses	15,241,181	13,812,193
Other real estate owned (“OREO”), net	2,418	2,597
Federal Home Loan Bank (“FHLB”) stock, at cost	18,630	17,250
Premises and equipment, net	46,859	45,667
Accrued interest receivable	55,460	41,842
Deferred tax assets, net	150,409	49,719
Customers’ liabilities on acceptances	818	1,521
Bank owned life insurance (“BOLI”)	77,078	77,081
Investments in affordable housing partnerships	47,711	58,387
Operating lease right-of-use assets, net	55,034	52,701
Goodwill	464,450	464,450
Core deposit intangible assets, net	5,726	7,671
Servicing assets, net	11,628	10,418
Other assets	144,742	95,263
Total assets	19,164,491	17,889,061
Deposits:
Noninterest bearing	4,849,493	5,751,870
Interest bearing:
Money market and NOW accounts	5,615,784	6,178,850
Savings deposits	283,464	321,377
Time deposits	4,990,060	2,788,353
Total deposits	15,738,801	15,040,450
FHLB and FRB borrowings	865,000	300,000
Convertible notes, net	217,148	216,209
Subordinated debentures, net	106,565	105,354
Accrued interest payable	26,668	4,272
Acceptances outstanding	818	1,521
Operating lease liabilities	59,088	57,303
Commitments to fund investments in affordable housing partnerships	11,792	9,514
Other liabilities	119,283	61,455
Total liabilities	17,145,163	15,796,078
STOCKHOLDERS’ EQUITY:
Common Stock, par value, issued	137	136
Additional paid-in capital	1,431,003	1,421,698
Retained earnings	1,083,712	932,561
Treasury Stock, at cost	(264,667)	(250,000)
Accumulated other comprehensive loss, net	(230,857)	(11,412)
Total stockholders’ equity	2,019,328	2,092,983
Total liabilities and stockholders’ equity	$ 19,164,491	$ 17,889,061

Consolidated Statements Of Fi_2

Consolidated Statements Of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Investment securities held to maturity, fair value	$ 258,407	$ 0
Allowance for credit losses on loans receivable	$ 162,359	$ 140,550
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	136,878,044	136,350,301
Common stock, shares outstanding (in shares)	119,495,209	120,006,452
Treasury stock, at cost, shares repurchased (in shares)	17,382,835	16,343,849

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
INTEREST INCOME:
Interest and fees on loans	$ 660,732	$ 528,174	$ 554,967
Interest on investment securities	52,220	35,492	39,362
Interest on other investments	3,163	2,866	4,549
Total interest income	716,115	566,532	598,878
INTEREST EXPENSE:
Interest on deposits	114,839	42,011	110,369
Interest Expense, FHLB and FRB borrowings	11,525	2,561	6,865
Interest on other borrowings and convertible notes	11,330	9,190	14,146
Total interest expense	137,694	53,762	131,380
NET INTEREST INCOME BEFORE PROVISION (CREDIT) FOR CREDIT LOSSES	578,421	512,770	467,498
PROVISION (CREDIT) FOR CREDIT LOSSES	9,600	(12,200)	95,000
NET INTEREST INCOME AFTER PROVISION (CREDIT) FOR CREDIT LOSSES	568,821	524,970	372,498
NONINTEREST INCOME:
Service fees on deposit accounts	8,938	7,275	12,443
International service fees	3,134	3,586	3,139
Loan servicing fees, net	3,588	3,367	2,809
Wire transfer fees	3,477	3,519	3,577
Swap fees	2,605	1,458	4,066
Net gains on sales of SBA loans	16,343	8,448	0
Net gains on sales of residential mortgage loans	882	4,435	8,004
Net losses on sales of other loans	193	0	0
Net gains on sales of securities available for sale	0	0	7,531
Other income and fees	12,237	11,506	11,863
Total noninterest income	51,397	43,594	53,432
NONINTEREST EXPENSE:
Salaries and employee benefits	204,719	175,151	162,922
Occupancy	28,267	28,898	28,917
Furniture and equipment	19,434	18,079	17,548
Advertising and marketing	7,470	8,707	6,284
Data processing and communications	10,683	10,331	9,344
Professional fees	6,314	12,168	8,170
Investments in affordable housing partnership expenses	8,742	11,067	13,146
FDIC assessments	6,248	5,109	5,544
Credit related expenses	5,897	4,400	6,817
OREO expense, net	315	1,638	3,865
Software impairment	0	2,146	0
Earnings credit rebate	10,998	1,842	654
Federal Home Loan Bank Prepayment Fee	0	0	2,367
Restructuring Costs	0	0	3,584
Other	15,083	13,756	14,477
Total noninterest expense	324,170	293,292	283,639
INCOME BEFORE INCOME TAXES	296,048	275,272	142,291
INCOME TAX PROVISION	77,771	70,700	30,776
NET INCOME	$ 218,277	$ 204,572	$ 111,515
Earnings Per Share [Abstract]
Basic (in dollars per share)	$ 1.82	$ 1.67	$ 0.90
Diluted (in dollars per share)	$ 1.81	$ 1.66	$ 0.90

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 218,277	$ 204,572	$ 111,515
Other Comprehensive Income (Loss), Net of Tax [Abstract]
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax	(297,919)	(65,551)	41,562
OCI, Debt Securities. Transferred to Held to Maturity Adjustment including Amortization of Unrealized Gains (Losses), before Tax	(36,576)	0	0
Change in unrealized net holding gains (losses) on interest rate swaps used in cash flow hedges	23,062	2,893	(602)
Reclassification adjustments for net losses (gains) realized in net income	253	319	(7,583)
Tax effect	91,735	18,174	(9,773)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(219,445)	(44,165)	23,604
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	$ (1,168)	$ 160,407	$ 135,119

Consolidated Statements Of Chan

Consolidated Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]
Balance at beginning of period (in shares) at Dec. 31, 2019		125,756,543
Balance at beginning of period at Dec. 31, 2019	$ 2,036,011	$ 136	$ 1,428,066	$ 762,480	$ (163,820)	$ 9,149
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Financing Receivable, Current Expected Credit Loss, Cumulative Effect On Retained Earnings, Before Tax | ASU 2016-01				(26,729)
Financing Receivable, Current Expected Credit Loss, Cumulative Effect On Retained Earnings, Tax | ASU 2016-13				7,856
Issuance of shares pursuant to various stock plans, net of forfeitures and tax withholding cancellations (in shares)		224,355
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	0	$ 0	0
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	6,850		6,850
Cash dividends declared on common stock	(69,182)			(69,182)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	111,515			111,515
Other comprehensive income (loss)	$ 23,604					23,604
Repurchase of treasury stock (in shares)	2,716,034	2,716,034
Repurchase of treasury stock	$ (36,180)				(36,180)
Balance at end of period (in shares) at Dec. 31, 2020		123,264,864
Balance at end of period at Dec. 31, 2020	2,053,745	$ 136	1,434,916	785,940	(200,000)	32,753
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Convertible debt, cumulative effect on retained earnings before tax				10,715
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt	(10,705)		(21,420)
AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt, tax	3,160		3,160
Issuance of shares pursuant to various stock plans, net of forfeitures and tax withholding cancellations (in shares)		423,856
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	0	$ 0	0
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	5,042		5,042
Cash dividends declared on common stock	(68,666)			(68,666)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	204,572			204,572
Other comprehensive income (loss)	$ (44,165)					(44,165)
Repurchase of treasury stock (in shares)	3,682,268	3,682,268
Repurchase of treasury stock	$ (50,000)				(50,000)
Balance at end of period (in shares) at Dec. 31, 2021		120,006,452
Balance at end of period at Dec. 31, 2021	2,092,983	$ 136	1,421,698	932,561	(250,000)	(11,412)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares pursuant to various stock plans, net of forfeitures and tax withholding cancellations (in shares)		527,743
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	531	$ 1	530
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	8,775		8,775
Cash dividends declared on common stock	(67,126)			(67,126)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	218,277			218,277
Other comprehensive income (loss)	$ (219,445)					(219,445)
Repurchase of treasury stock (in shares)	1,038,986	1,038,986
Repurchase of treasury stock	$ (14,667)				(14,667)
Balance at end of period (in shares) at Dec. 31, 2022		119,495,209
Balance at end of period at Dec. 31, 2022	$ 2,019,328	$ 137	$ 1,431,003	$ 1,083,712	$ (264,667)	$ (230,857)

Consolidated Statements Of Ch_2

Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CECL impact		Accounting Standards Update 2020-06
Cash dividends declared on common stock (in dollars per share)	$ 0.56	$ 0.56	$ 0.56
ASU 2016-01
CECL impact			ASU 2016-01
ASU 2016-13
CECL impact			ASU 2016-13

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 218,277	$ 204,572	$ 111,515
Adjustments to reconcile net income to net cash from operating activities:
Discount accretion, net of depreciation and amortization	20,087	26,000	12,244
Stock-based compensation expense	12,263	8,398	8,127
Provision (credit) for credit losses	9,600	(12,200)	95,000
Provision (credit) for unfunded loan commitments	250	(195)	660
Provision for accrued interest receivables on loans	1,107	846	1,000
Valuation adjustment of OREO	415	1,621	3,284
Write-down of right-of-use assets	0	0	1,751
Net gains on sales of SBA loans	(17,418)	(12,883)	(8,004)
Net losses on sales of OREO	(178)	(684)	(108)
Net gains on sales and calls of securities available for sale	0	0	(7,531)
Net change in fair value of equity investments with readily determinable fair value	1,912	789	(488)
Losses on investments in affordable housing partnerships	10,374	10,774	12,863
Payment of FHLB prepayment fee	0	0	3,584
Software impairment	0	2,146	0
Net change in deferred income taxes	(8,955)	19,626	(17,998)
Proceeds from sales of loans held for sale	238,904	229,302	305,060
Originations of loans held for sale	(55,466)	(192,161)	(268,283)
Originations of servicing assets	(5,200)	(2,880)	(2,864)
Net change in accrued interest receivable	(17,248)	16,742	(28,658)
Net change in other assets	(3,519)	49,010	(59,228)
Net change in accrued interest payable	22,396	(10,434)	(19,104)
Net change in other liabilities	57,578	(15,546)	22,878
Net cash provided by operating activities	485,535	324,211	165,916
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of interest bearing deposits in other financial institutions	0	(4,233)	(20,597)
Redemption of interest bearing deposits in other financial institutions	12,116	20,024	21,117
Purchase of securities	(212,496)	(1,159,057)	(1,273,369)
Proceeds from matured, called, or paid-down securities	324,706	694,715	565,362
Proceeds from sale of securities	0	0	168,069
Purchase of securities	(41,583)	0	0
Proceeds from matured, called, or paid-down securities	11,638	0	0
Proceeds from sales of equity investments	20,603	1,277	201
Purchase of equity investments	(350)	0	(10,000)
Proceeds from sales of other loans held for sale previously classified as held for investment	160,805	335,888	1,294
Purchase of loans receivable	(56,266)	(214,988)	0
Net change in loans receivable	(1,680,144)	(671,581)	(1,273,988)
Proceeds from sales of OREO	524	15,220	2,458
Purchase of FHLB stock	(21,378)	0	(1,346)
Redemption of FHLB stock	19,998	0	3,503
Purchase of premises and equipment	(9,111)	(7,220)	(4,973)
Proceeds from BOLI death benefits	1,215	1,283	970
Investments in affordable housing partnerships	(3,903)	(4,368)	(13,333)
Net cash used in investing activities	(1,473,626)	(993,040)	(1,834,632)
CASH FLOWS FROM FINANCING ACTIVITIES
Net change in deposits	698,351	706,538	1,806,548
Proceeds from FHLB advances	23,750,885	2,319,000	1,360,000
Repayment of FHLB advances	(23,450,885)	(2,269,000)	(1,738,584)
Proceeds from FRB borrowings	16,548,000	0	0
Repayment of FRB borrowings	(16,283,000)	0	0
Purchase of treasury stock	(14,667)	(50,000)	(36,777)
Cash dividends paid on common stock	(67,126)	(68,666)	(69,182)
Taxes paid in net settlement of restricted stock	(3,488)	(3,356)	(1,277)
Issuance of additional stock pursuant to various stock plans	531	0	0
Net cash provided by financing activities	1,178,601	634,516	1,320,728
NET CHANGE IN CASH AND CASH EQUIVALENTS	190,510	(34,313)	(347,988)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	316,266	350,579	698,567
CASH AND CASH EQUIVALENTS, END OF PERIOD	506,776	316,266	350,579
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	113,148	62,081	144,234
Income taxes paid	96,398	42,201	49,220
SUPPLEMENTAL DISCLOSURES OF NON-CASH ACTIVITIES
Transfer from loans receivable to OREO	938	0	2,928
Transfer from loans receivable to loans held for sale	311,535	472,598	1,243
Transfer from loans held for sale to loans receivable	12,021	19,625	2,933
Transfer from investment securities available for sale to held to maturity, at fair value	238,966	0	0
Lease liabilities arising from obtaining right-of-use assets	$ 16,977	$ 965	$ 0

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations— Hope Bancorp, Inc. (“Hope Bancorp” on a parent-only basis and the “Company” on a consolidated basis), headquartered in Los Angeles, California, is the holding company for Bank of Hope (the “Bank”). The Bank has branches in California, New York, Illinois, Washington, Texas, New Jersey, Virginia, Alabama, and Georgia, as well as loan production offices in Atlanta, Houston, Dallas, Denver, Portland, Seattle, Tampa, Southern California, and Northern California. Hope Bancorp is a corporation organized under the laws of the state of Delaware and a bank holding company registered under the Bank Holding Company Act of 1956, as amended. The Bank is a California-chartered bank and its deposits are insured by the FDIC to the extent provided by law. The Company specializes in core business banking products for small and medium-sized businesses, with an emphasis in commercial real estate and business lending, SBA lending, and international trade financing. Principles of Consolidation— The accounting and reporting policies of the Company are in accordance with accounting principles generally accepted in the United States of America and conform to practices within the banking industry. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, principally the Bank. Intercompany transactions and balances are eliminated in consolidation. Cash and Cash Equivalents —Cash and cash equivalents include cash and due from banks, interest-earning deposits, and federal funds sold, which have original maturities less than 90 days. The Company may be required to maintain reserve and clearing balances with the Federal Reserve Bank under the Federal Reserve Act. The reserve and clearing requirement balance was $0 at December 31, 2022 and 2021. Net cash flows are reported for customer loan and deposit transactions, investment transactions, federal funds purchased, deferred income taxes, and other assets and liabilities. Interest-Bearing Deposits in Other Financial Institutions —Interest-bearing deposits in other financial institutions are comprised of the Company’s investments in certificates of deposits that have original maturities greater than 90 days. Investment Securities— Securities are classified and accounted for as follows: (i) Securities that the Company has the positive intent and ability to hold to maturity are classified as “held to maturity” and reported at amortized cost. (ii) Securities are classified as “available for sale” when they might be sold before maturity and are reported at fair value. Unrealized holding gains and losses are reported as a separate component of stockholders’ equity in accumulated other comprehensive income, net of taxes. Accreted discounts and amortized premiums on securities are included in interest income using the interest method, and realized gains or losses related to sales of securities recorded on trade date and are calculated using the specific identification method, without anticipating prepayments, except for mortgage-backed securities where prepayments are expected. The Company has made a policy election to exclude accrued interest from the amortized cost basis of debt securities and report accrued interest separately in accrued interest and other assets on the consolidated balance sheets. Investment securities available for sale and held to maturity are placed on non-accrual status when management no longer expects to receive all contractual amounts due, which is generally at 90 days past due. Accrued interest receivable is reversed against interest income when a security is placed on non-accrual status. Accordingly, the Company does not recognize an allowance for credit loss against accrued interest receivable. Management may transfer investment securities classified as AFS to HTM when upon reassessment it is determined that the Company has both the positive intent and ability to hold these securities to maturity. The investment securities are transferred at fair value resulting in a premium or discount recorded on the transfer date. Unrealized gains or losses at the date of transfer continue to be reported as a separate component of accumulated other comprehensive income/loss, net (“AOCI”). The premium or discount and the unrealized gain or loss, net of tax, in AOCI will be amortized to interest income over the remaining life of the securities using the interest method. In 2022, the Company transferred $239.0 million in fair value of available for sale securities to held to maturity. There were no transfers in 2021. Investment securities AFS are recorded at fair value, with unrealized gains and losses, net of tax, reported as a separate component of AOCI. For investment securities AFS in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more-likely-than-not that it will be required to sell, the securities before recovery of the amortized cost basis. If either of these criteria is met, the securities’ amortized cost basis is written down to fair value as a current period expense recorded on the consolidated statements of income and other comprehensive income. If either of the above criteria is not met, management evaluates whether the decline in fair value is the result of credit losses or other factors. In making this assessment, management may consider various factors including the extent to which fair value is less than amortized cost, performance of any underlying collateral and adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected are compared to the amortized cost basis of the security and any excess is recorded as an allowance for credit losses, limited to the amount by which the fair value is less than the amortized cost basis. Any impairment not recorded through an allowance for credit losses is recognized in AOCI, net of tax, as a non-credit related impairment. For allowance for credit losses on investment securities AFS and HTM, refer to the Allowance for Credit Losses on Securities Available for Sale and Allowance for Credit Losses on Securities Held to Maturity sections of Note 3 “Investment Securities” for details. Equity Investments —Equity investments include mutual funds, correspondent bank stock, Community Development Financial Institutions Fund (“CDFI”) investments, and Community Reinvestment Act (“CRA”) investments. The Company’s mutual funds are considered equity investments with readily determinable fair values and changes to fair value are recorded in other noninterest income. The Company’s investment in correspondent bank stock, CDFI investments, and CRA investments are equity investments without readily determinable fair values. Equity investments without readily determinable fair values are measured at cost, less impairment, and are adjusted for observable price changes which is recorded in noninterest income. Derivative Financial Instruments and Hedging Transactions —As part of the Company’s asset and liability management strategy, the Company uses derivative financial instruments, such as interest rate swaps, risk participation agreements, foreign exchange contracts, collars, and caps and floors, with the overall goal of minimizing the impact of interest rate fluctuations on net interest margin. The Company’s interest rate swaps and caps involve the exchange of fixed rate and variable rate interest payment obligations without the exchange of the underlying notional amounts and are therefore accounted for as stand-alone derivatives. Derivative instruments are included in other assets or accrued expenses and other liabilities on the Consolidated Balance Sheet at fair value. At the inception of the derivative contract, the Company designates the derivative as (1) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”), or (2) an instrument with no hedging designation (“stand-alone derivative”). For a cash flow hedge, the gain or loss on the derivative is reported as a component of other comprehensive income and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Changes in the fair value of derivatives that do not qualify for hedge accounting are reported currently in earnings, in noninterest income. Net cash settlements on derivatives that do not qualify for hedge accounting are reported in noninterest income. The related cash flows are recognized on the cash flows from operating activities section on the Consolidated Statement of Cash Flows. Residential mortgage loans funded with interest rate lock commitments and forward commitments for the future delivery of mortgage loans to third party investors, are both considered derivatives. The Company accounts for loan commitments related to the origination of mortgage loans that will be held-for-sale as derivatives at fair value on the balance sheet, with changes in fair value recorded in earnings in the period in which the changes occur. As part of the Company’s overall risk management, the Company’s Asset Liability Committee, which meets monthly, monitors and measures interest rate risk and the sensitivity of assets and liabilities to interest rate changes, including the impact of derivative transactions. The Company formally documents all relationships between derivatives and hedged items, as well as the risk-management objective and strategy for undertaking various hedge transactions. This documentation includes linking cash flow hedges to specific assets and liabilities on the balance sheet or to specific firm commitments or forecasted transactions. The Company also formally assesses, both at the hedge’s inception and on an ongoing basis, whether the derivative instruments that are used in hedging transactions are highly effective in offsetting changes in cash flows of the hedged items. The Company discontinues hedge accounting prospectively when it is determined that (1) the derivative is no longer effective in offsetting changes in the cash flows of the hedged item, (2) the derivative expires, is sold, or terminated, (3) the derivative instrument is de-designated as a hedge because the forecasted transaction is no longer probable of occurring, (4) a hedged firm commitment no longer meets the definition of a firm commitment, or (5) management otherwise determines that designation of the derivative as a hedging instrument is no longer appropriate. When hedge accounting is discontinued, subsequent changes in fair value of the derivative are recorded as noninterest income. When a fair value hedge is discontinued, the hedged asset or liability is no longer adjusted for changes in fair value and the existing basis adjustment is amortized or accreted over the remaining life of the asset or liability. When a cash flow hedge is discontinued but the hedged cash flows or forecasted transaction is still expected to occur, changes in value that were accumulated in other comprehensive income are amortized or accreted into earnings over the same periods which the hedged transactions will affect earnings. The Company enters into interest rate collars which is an interest rate risk management tool that effectively creates a band within which the borrower's variable interest rate fluctuates, by combining an interest rate cap (or ceiling) with an interest rate floor. In order for the Company to hedge the Bank’s fixed rate loan portfolio, the Company entered into interest rate collar derivatives as a protection should the Fed lower interest rates in the event of a recession or other economic changes. The interest rate collars are designated as cash flow hedges of floating interest receivables. The Company enters into risk participation agreements with outside counterparties for interest rate swaps related to loans in which it is a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract. Risk participation agreements are credit derivatives not designated as hedges. Credit derivatives are not speculative and are not used to manage interest rate risk in assets or liabilities. Changes in the fair value in credit derivatives are recognized directly in earnings. The fee received, less the estimate of the loss for credit exposure, was recognized in earnings at the time of the transaction. The Company enters into foreign exchange contracts to accommodate the business needs of its customers. For the foreign exchange contracts entered with its customers, the Company entered into offsetting foreign exchange contracts with third-party financial institutions to manage its exposure. The fair value of foreign exchange contracts is determined at each reporting period based on changes in the foreign exchange rates. These are over-the-counter contracts where quoted market prices are not readily available. Loans Held for Sale —Small Business Administration (“SBA”) and residential mortgage loans that the Company has the intent to sell prior to maturity have been designated as held for sale at origination and are recorded at the lower of cost or fair value, on an aggregate basis. Certain loans which were originated with the intent to hold to maturity are subsequently transferred to held for sale once there is an intent to sell the loan. A valuation allowance is established if the aggregate fair value of such loans is lower than their cost and charged to earnings. Gains or losses recognized upon the sale of loans are determined on a specific identification basis. Loan transfers are accounted for as sales when control over the loan has been surrendered. Control over such loans is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets and (3) the Company does not maintain control over the transferred assets through an agreement to repurchase them before their maturity. Loans— Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the amount of unpaid principal, adjusted for net deferred fees and costs, premiums and discounts, purchase accounting fair value adjustments, and allowance for credit losses. Interest income is accrued on the unpaid principal balance. Nonrefundable loan origination fees and certain direct origination costs are deferred and recognized in interest income using the level-yield method over the life of the loan. Interest on loans is credited to income as earned and is accrued only if deemed collectible. The loan portfolio consists of four segments: real estate, commercial business, residential mortgage, and consumer and other loans. Real estate loans are extended for the purchase and refinance of commercial real estate and are generally secured by first deeds of trust and are collateralized by residential or commercial properties. Commercial business loans are loans provided to businesses for various purposes such as for working capital, purchasing inventory, debt refinancing, business acquisitions, international trade finance activities, and other business related financing needs and also include warehouse lines of credit, syndicated loans, and SBA Paycheck Protection Program (“PPP”) loans. Residential mortgage loans are extended for personal, family, or household use and are secured by a mortgage or deed of trust. Consumer and other loans consist of home equity, credit card, and other personal loans. On January 1, 2020, the Company adopted ASU 2016-13, or CECL, using the modified retrospective method for all of its loans measured at amortized cost. With the adoption of CECL, the Company reassessed its loan portfolio segments and classes of loans receivable and made changes based on the new allowance for credit losses methodology. As a result, the Company now discloses residential mortgage loans as a separate segment and class of receivable. Trade finance loans, which were previously disclosed as a distinct segment and class of receivable, are now combined with commercial business loans. Prior period balances have been reclassified to conform with the current presentation. Generally, loans are placed on nonaccrual status and the accrual of interest is discontinued if principal or interest payments become 90 days past due and/or management deems the collectability of the principal and/or interest to be in question. Loans to a customer whose financial condition has deteriorated are considered for nonaccrual status whether or not the loan is 90 days or more past due. Generally, payments received on nonaccrual loans are recorded as principal reductions. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Other loan fees and charges, representing service costs for the prepayment of loans, for delinquent payments, or for miscellaneous loan services, are recorded as income when collected. The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, including, but not limited to, current financial information, historical payment experience, credit documentation, public information, and current economic trends. Homogeneous loans (i.e., home mortgage loans, home equity lines of credit, overdraft loans, express business loans, and automobile loans) are not risk rated and credit risk is analyzed largely by the number of days past due. This analysis is performed at least on a quarterly basis: • Pass: Loans that meet a preponderance or more of the Company’s underwriting criteria and that evidence an acceptable level of risk. • Special Mention: Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. • Substandard: Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the borrower or by the collateral pledged, if any. Loans in this classification have a well-defined weakness or weaknesses that jeopardize the repayment of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. • Doubtful/Loss: Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or repayment in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Allowance for Credit Losses (“ACL”) —The Company calculates its ACL by estimating expected credit losses on a collective basis for loans that share similar risk characteristics. Loans that do not share similar risk characteristics with other loans are evaluated for credit losses on an individual basis. The Company differentiates its loan segments based on shared risk characteristics for which allowance for credit losses is measured on a collective basis. Risk Characteristics Real estate Property type, location, owner occupied status Commercial business Delinquency status, risk rating, industry type Residential mortgage FICO score, LTV, delinquency status, maturity date, collateral value, location Consumer and other Historical losses The Company uses a combination of a modeled and non-modeled approach that incorporates current and future economic conditions to estimate lifetime expected losses on a collective basis. The Company uses Probability of Default (“PD”), Loss Given Default (“LGD”), and Exposure at Default (“EAD”) methodologies with quantitative factors and qualitative considerations in calculation of the allowance for credit losses for collectively assessed loans. The Company uses a reasonable and supportable period of 2 years at which point loss assumptions revert back to historical loss information by means of 1 year reversion period. For a discussion of the Company’s former incurred loss allowance for loan losses methodology, please refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. The ACL for the Company’s construction, credit card, and certain consumer loans is calculated based on a non-modeled approach utilizing historical loss rates to estimate losses. A non-modeled approach was chosen for these loans as fewer data points exist which could result in high levels of estimated loss volatility under a modeled approach. Materiality was another factor in using a non-modeled approach for these loans as in aggregate, non-modeled loans represented approximately 1% of the Company’s total loan portfolio as of December 31, 2022. The Economic Forecast Committee (“EFC”) reviews multiple scenarios put together by an independent third party and chooses a single scenario that best aligns with management’s expectation of future economic conditions. The forecast scenarios contain certain macroeconomic variables that are incorporated into the Company’s modeling process, including GDP, unemployment rates, interest rates, and commercial real estate prices. As of December 31, 2022, the Company chose a forecast scenario that incorporated the latest projected economic assumptions. The allowance for credit losses at December 31, 2022 utilized the Moody’s consensus scenario, as well as more specific information, including updated market data which reflects the economic conditions that align with management’s view. In the prior year, the Company also utilized Moody’s consensus scenario in its ACL calculation. Additionally, in order to systematically quantify the credit risk impact of other trends and changes within the loan portfolio that may not be captured by the modeled and non-modeled approach, the Company utilizes qualitative adjustments to estimate total expected losses. The parameters for making adjustments are established under a Credit Risk Matrix that provides different possible scenarios for each of the factors below. The Credit Risk Matrix and the possible scenarios enable the Bank to qualitatively adjust the allowance for credit losses by as much as 25 basis points for each factor. This matrix considers the following seven factors, which are patterned after the guidelines provided under the Federal Financial Institutions Examination Council (“FFIEC”) Interagency Policy Statement on the Allowance for Loan and Lease Losses, updated to reflect the application of the CECL methodology: • Changes in lending policies and procedures, including underwriting standards and collection, charge-off, and recovery practices; • Changes in the nature and volume of the loan portfolio; • Changes in the experience, ability and depth of lending management and staff; • Changes in the trends of the volume and severity of past due loans, classified loans, nonaccrual loans, troubled debt restructurings and other loan modifications; • Changes in the quality of the loan review system and the degree of oversight by the Directors; • The existence and effect of any concentrations of credit and changes in the level of such concentrations; and • The effect of other external factors, such as competition, legal and regulatory requirements, and others that have an impact on the level of estimated losses in the Company’s loan portfolio. For loans which do not share similar risk characteristics such as nonaccrual and TDR loans above $1.0 million, the Company evaluates these loans on an individual basis in accordance with ASC 326. These nonaccrual and TDR loans are considered to have different risk profiles than performing loans and therefore are evaluated separately. The Company collectively assesses TDRs and nonaccrual loans with balances below $1.0 million along with the performing and accrual loans in order to reduce the operational burden of individually assessing small TDR and nonaccrual loans with immaterial balances. For individually assessed loans, the ACL is measured using either 1) the present value of future cash flows discounted at the loan’s effective interest rate; 2) the loan’s observable market price; or 3) the fair value of the collateral, if the loan is collateral dependent. For the collateral dependent loans, the Company obtains a new appraisal to determine the fair value of underlying loan collateral. The appraisals are based on an “as-is” valuation. To ensure that appraised values remain current, the Company either obtains updated appraisals every twelve months from a qualified independent appraiser or an internal evaluation of the collateral is performed by qualified personnel. If the third party market data indicates that the value of the collateral property has declined since the most recent valuation date, management adjusts the value of the property downward to reflect current market conditions. If the fair value of the collateral is less than the amortized balance of the loan, the Company recognizes an ACL with a corresponding charge to the provision for credit losses. TDR loans are individually evaluated in accordance with ASC 310 and ASC 326. The concessions may be granted in various forms, including reduction in the stated interest rate, reduction in the amount of principal amortization, forgiveness of a portion of a loan balance or accrued interest, or extension of the maturity date. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed on the probability that the borrower will be in payment default on their debt in the foreseeable future without the modification. This evaluation is performed under the Bank’s internal underwriting policy. TDR loans on accrual status are comprised of loans that were accruing at the time of restructuring and for which the Company anticipates full repayment of both principal and interest under the restructured terms. TDR loans that are on nonaccrual status can be returned to accrual status after a period of sustained performance, generally determined to be six months of timely payments as modified. Sustained performance includes the periods prior to the modification and if the prior performance met or exceeded the modified terms. With the adoption of CECL, the Company elected not to consider accrued interest receivable in its estimates of expected credit losses because the Company writes off uncollectible accrued interest receivable in a timely manner. The Company considers writing off accrued interest amounts once the amounts become 90 days past due to be considered within a timely manner for all of its loan segments. The Company has elected to write off accrued interest receivables by reversing interest income. The Coronavirus Aid, Relief, and Economic Security (“CARES”) Act provides banks the option to temporarily suspend certain requirements under U.S. GAAP related to TDR accounting for a limited period of time to account for the effects of COVID-19 if (i) the loan modification is made between March 1, 2020 and the earlier of January 1, 2022 or 60 days after the end of the coronavirus emergency declaration and (ii) the applicable loan was not more than 30 days past due as of December 31, 2019. As such, all modified loans that met the criteria outlined within Section 4013 of the CARES Act were not classified as TDR loans unless the loans were TDR prior to the COVID-19 modification. The balance of active modified loans under the CARES Act and not subject to TDR accounting was $0 at December 31, 2022 and $22.8 million at December 31, 2021. Purchase Credit Deteriorated (“PCD”) — PCD is a classification of purchased financial assets for which there has been a more-than insignificant deterioration in credit quality since origination. The Company adds the allowance for credit losses at the date of acquisition to the purchase price to determine the initial amortized cost basis for purchased financial assets with credit deterioration. Any noncredit discount or premium resulting from acquiring loans with credit deterioration shall be allocated to each individual asset. At the acquisition date, the initial allowance for credit losses is determined on a collective basis and is allocated to individual assets to appropriately allocate any noncredit discount or premium. The Company accounts for purchased financial assets that do not have a more-than-insignificant deterioration in credit quality since origination in a manner consistent with originated financial assets. After initial recognition, the Company shall treat PCD assets like all other loans and apply one of the impairment models under CECL for instruments measured at amortized cost. The noncredit discount shall be amortized into interest income over the life of the loan. Subsequent changes to the allowance for credit losses are recorded through provision for credit losses. OREO —OREO, which represents real estate acquired through foreclosure in satisfaction of commercial and real estate loans, is stated at fair value less estimated selling costs of the real estate. Loan balances in excess of the fair value of the real estate acquired at the date of acquisition are charged to the allowance for credit losses. Any subsequent operating expenses or income, reduction in estimated fair values, and gains or losses on disposition of such properties are charged or credited to current operations. For the year ended December 31, 2022, the Company foreclosed on properties with an aggregate carrying value of $938 thousand. The Company recorded $415 thousand in net valuation losses subsequent to the foreclosures during the year ended December 31, 2022, and the Company sold OREO properties for total proceeds of $524 thousand during the year. For the year ended December 31, 2021, the Company did not foreclose on any properties. The Company recorded $1.6 million in net valuation losses subsequent to the foreclosures during the year ended December 31, 2021, and the Company sold OREO properties for total proceeds of $15.2 million during the year. FHLB Stock —The Bank is a member of the FHLB system. Members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income. Premises and Equipment —Premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization of premises and equipment are computed on the straight-line method over the following estimated useful lives: • Buildings - 15 to 39 years • Furniture, fixture, and equipment - 3 to 10 years • Computer equipment - 1 to 5 years • Computer software - 1 to 5 years • Leasehold improvement - life of lease or improvements, whichever is shorter BOLI —The Company has purchased life insurance policies on certain key executives and directors. BOLI is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. Investments in Affordable Housing Partnerships —The Company owns limited partnership interests in projects of affordable housing for lower income tenants. Under the equity method of accounting, the annual amortization is based on the estimated tax deduction amounts the bank would receive in the year. The carrying value of such investments and commitments to fund investment in affordable housing is recorded as “Investments in affordable housing partnerships” in the Consolidated Statement of Financial Condition. Commitments to fund investments in affordable housing is also included in this line items but is also grossed up and recorded as a liability. Leases —Operating lease right-of-use (“ROU”) assets represent the Company’s right to use the underlying asset during the lease term and operating lease liabilities represent the Company’s obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at lease commencement
Nature of Operations	Nature of Operations— Hope Bancorp, Inc. (“Hope Bancorp” on a parent-only basis and the “Company” on a consolidated basis), headquartered in Los Angeles, California, is the holding company for Bank of Hope (the “Bank”). The Bank has branches in California, New York, Illinois, Washington, Texas, New Jersey, Virginia, Alabama, and Georgia, as well as loan production offices in Atlanta, Houston, Dallas, Denver, Portland, Seattle, Tampa, Southern California, and Northern California. Hope Bancorp is a corporation organized under the laws of the state of Delaware and a bank holding company registered under the Bank Holding Company Act of 1956, as amended. The Bank is a California-chartered bank and its deposits are insured by the FDIC to the extent provided by law. The Company specializes in core business banking products for small and medium-sized businesses, with an emphasis in commercial real estate and business lending, SBA lending, and international trade financing.

Equity Investments

Equity Investments	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Equity Investments	EQUITY INVESTMENTS Equity investments with readily determinable fair values at December 31, 2022 and 2021, consisted of mutual funds in the amounts of $4.3 million and $26.8 million, respectively, and were included in “Equity investments” on the Consolidated Statements of Financial Condition. The changes in fair value for equity investments with readily determinable fair values for the years ended December 31, 2022 and 2021 were recorded in other noninterest income and fees as summarized in the table below: Year Ended December 31, 2022 2021 (Dollars in thousands) Net change in fair value recorded during the period on equity investments with readily determinable fair value $ (1,917) $ (789) Less: Net change in fair value recorded on equity investments sold during the period (1,354) — Net change in fair value on equity investments with readily determinable fair values held at the end of the period $ (563) $ (789) The decline in fair value of the Company’s equity investments with readily determinable fair values was due to the recent increases in market interest rates over the yield available at the time the equity investments were purchased. For the year ended December 31, 2022, the Company received proceeds of $20.6 million from the sale of equity investments with readily determinable fair values. At December 31, 2022 and 2021, the Company also had equity investments without readily determinable fair values which are carried at cost less any determined impairment. The balance of these investments is adjusted for changes in subsequent observable prices. At December 31, 2022, the total balance of equity investments without readily determinable fair values included in “Equity investments” on the Consolidated Statements of Financial Condition was $38.1 million, consisting of $370 thousand in correspondent bank stock, $1.0 million in Community Development Financial Institutions (“CDFI”) investments, and $36.7 million in Community Reinvestment Act (“CRA”) investments. At December 31, 2021, the total balance of equity investments without readily determinable fair values was $31.0 million, consisting of $370 thousand in correspondent bank stock, $1.0 million in CDFI investments, and $29.7 million in CRA investments.

Securities Available for Sale

Securities Available for Sale	12 Months Ended
	Dec. 31, 2022
Debt Securities, Available-for-Sale [Abstract]
Securities Available for Sale	INVESTMENT SECURITIES The following is a summary of investment securities as of the dates indicated: December 31, 2022 December 31, 2021 Amortized Gross Gross Fair Amortized Gross Gross Fair (Dollars in thousands) Debt securities available for sale: U.S. Treasury securities $ 3,990 $ — $ (104) $ 3,886 $ — $ — $ — $ — U.S. Government agency and U.S. Government sponsored enterprises: Agency securities 4,000 — (133) 3,867 — — — — Collateralized mortgage obligations 947,541 — (153,842) 793,699 1,039,543 3,357 (16,470) 1,026,430 Mortgage-backed securities: Residential 544,084 — (90,907) 453,177 769,113 1,985 (11,874) 759,224 Commercial 417,241 — (48,954) 368,287 595,659 9,103 (5,360) 599,402 Asset-backed securities 153,539 — (5,935) 147,604 153,564 11 (124) 153,451 Corporate securities 23,351 — (4,494) 18,857 23,398 130 (1,044) 22,484 Municipal securities 195,675 790 (13,713) 182,752 104,371 1,680 (767) 105,284 Total investment securities available for sale $ 2,289,421 $ 790 $ (318,082) $ 1,972,129 $ 2,685,648 $ 16,266 $ (35,639) $ 2,666,275 Debt securities held to maturity: U.S. Government agency and U.S. Government sponsored enterprises: Mortgage-backed securities: Residential $ 157,881 $ — $ (7,041) $ 150,840 $ — $ — $ — $ — Commercial 113,185 1 (5,619) 107,567 — — — — Total investment securities held to maturity $ 271,066 $ 1 $ (12,660) $ 258,407 $ — $ — $ — $ — During the second quarter of 2022, the Company transferred $239.0 million in fair value of debt securities from available for sale (“AFS”) to held to maturity (“HTM”). The transferred securities had an amortized cost of $275.5 million with a pre-tax net unrealized loss of $36.6 million, which was recorded as a discount subsequent to the transfer is being amortized as an adjustment of yield. The unrealized holding loss at the date of transfer will continue to be reported, net of taxes, in accumulated other comprehensive income (“AOCI”) as a component of stockholders’ equity, and will be amortized over the remaining life of the securities as an adjustment of yield, offsetting the impact on yield of the corresponding discount amortization. The Company has the ability and intent to hold these securities to maturity. At the time of transfer, there was no previously recorded allowance for credit losses on investment securities AFS transferred to HTM. Accrued interest receivable and 2021 totaled $7.8 million and $5.6 million, respectively. As of December 31, 2022 and 2021, there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity. At December 31, 2022 and 2021, $223.1 million and $13.0 million in unrealized losses on investment securities AFS, net of taxes, respectively, were included in accumulated other comprehensive income (loss). For the years ended December 31, 2022 and 2021, there were no reclassifications out of accumulated other comprehensive income (loss) into earnings resulting from the sale of investments securities AFS. The proceeds from sales of securities and total gains and losses are listed below: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Proceeds from investments sold $ — $ — $ 168,069 Gains from sales of securities $ — $ — $ 7,531 Losses from sales of securities — — — Gains from called securities — — — Net gain on sales or called securities $ — $ — $ 7,531 The following table presents a breakdown of interest income recorded for investment securities that are taxable and nontaxable. Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Interest income on investment securities Taxable $ 50,043 $ 34,583 $ 37,534 Nontaxable 2,177 909 1,828 Total $ 52,220 $ 35,492 $ 39,362 The amortized cost and estimated fair value of investment securities at December 31, 2022, by contractual maturity, are presented in the table below. Collateralized mortgage obligations, mortgage-backed securities, and asset-backed securities are presented by final maturity. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations, with or without call or prepayment penalties. Available for Sale Held to Maturity Amortized Estimated Amortized Estimated (Dollars in thousands) Debt securities: Due within one year $ 2,307 $ 2,267 $ — $ — Due after one year through five years 135,796 126,723 7,742 7,561 Due after five years through ten years 131,656 118,654 28,254 27,241 Due after ten years 2,019,662 1,724,485 235,070 223,605 Total $ 2,289,421 $ 1,972,129 $ 271,066 $ 258,407 Securities with carrying values of approximately $360.7 million and $362.2 million at December 31, 2022 and 2021, respectively, were pledged to secure public deposits, for various borrowings, and for other purposes as required or permitted by law. The following tables show the Company’s investments’ gross unrealized losses and estimated fair values, aggregated by investment category and the length of time that the individual securities have been in a continuous unrealized loss position as of the dates indicated. The length of time that the individual securities have been in a continuous unrealized loss position is not a factor in determining credit impairment with the adoption of CECL. December 31, 2022 Less than 12 months 12 months or longer Total Description of Number Fair Gross Number Fair Gross Number Fair Gross (Dollars in thousands) U.S. Treasury securities 1 $ 3,886 $ (104) — $ — $ — 1 $ 3,886 $ (104) Agency securities* 1 3,867 (133) — — — 1 3,867 (133) Collateralized mortgage obligations* 61 150,419 (14,888) 59 643,280 (138,954) 120 793,699 (153,842) Mortgage-backed securities: Residential* 23 55,645 (5,616) 42 397,532 (85,291) 65 453,177 (90,907) Commercial* 29 172,963 (12,156) 26 195,324 (36,798) 55 368,287 (48,954) Asset-backed securities 3 21,836 (716) 15 125,768 (5,219) 18 147,604 (5,935) Corporate securities 1 3,401 (600) 5 15,456 (3,894) 6 18,857 (4,494) Municipal securities 31 76,942 (3,207) 32 65,730 (10,506) 63 142,672 (13,713) Total 150 $ 488,959 $ (37,420) 179 $ 1,443,090 $ (280,662) 329 $ 1,932,049 $ (318,082) December 31, 2021 Less than 12 months 12 months or longer Total Description of Number Fair Gross Number Fair Gross Number Fair Gross (Dollars in thousands) Collateralized mortgage obligations* 39 $ 757,799 $ (15,445) 2 $ 37,438 $ (1,025) 41 $ 795,237 $ (16,470) Mortgage-backed securities: Residential* 49 603,372 (9,371) 13 75,211 (2,503) 62 678,583 (11,874) Commercial* 24 214,384 (3,339) 4 57,656 (2,021) 28 272,040 (5,360) Asset-backed securities 13 115,885 (124) — — — 13 115,885 (124) Corporate securities 4 14,067 (331) 1 4,288 (713) 5 18,355 (1,044) Municipal securities 23 59,403 (767) — — — 23 59,403 (767) Total 152 $ 1,764,910 $ (29,377) 20 $ 174,593 $ (6,262) 172 $ 1,939,503 $ (35,639) __________________________________ * Investments in U.S. Government agency and U.S. Government sponsored enterprises The Company had collateralized mortgage obligations, mortgage-backed, asset-backed, corporate, and municipal securities classified as AFS that were in a continuous loss position for twelve months or longer at December 31, 2022. The collateralized mortgage obligations and mortgage-backed securities were investments in U.S. Government agency and U.S. Government sponsored enterprises and have high credit ratings (“AA” grade or better). The interest on other securities that were in an unrealized loss position have been paid as agreed, and the Company believes this will continue in the future and that the securities will be paid in full as scheduled. The market value declines for these securities were primarily due to movements in interest rates and are not reflective of management’s expectations of the Company’s ability to fully recover any unrealized losses, which may be at maturity. With the adoption of CECL, the length of time that the fair value of investment securities have been less than amortized cost is not considered when assessing for credit impairment. Approximately 84% of the Company’s investment portfolio at December 31, 2022 consisted of securities that were issued by U.S. Government agency and U.S. Government sponsored enterprises. Although a government guarantee exists on these investments, these entities are not legally backed by the full faith and credit of the federal government, and the current support is subject to a cap as part of the agreement entered into in 2008. Nonetheless, at this time the Company does not foresee any set of circumstances in which the government would not fund its commitments on these investments as the issuers are an integral part of the U.S. housing market in providing liquidity and stability. In addition, the Company had one U.S. Treasury note issued and guaranteed by the U.S. government. Therefore, the Company concluded that a zero allowance approach for these investments was appropriate. The Company also had 18 asset-backed securities, six corporate securities, and 63 municipal bonds in unrealized loss positions at December 31, 2022. Allowance for Credit Losses on Securities Available for Sale— The Company evaluates investment securities AFS in unrealized loss positions for impairment related to credit losses on at least a quarterly basis. Investment securities AFS in unrealized loss positions are first assessed as to whether the Company intends to sell, or if it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis. If one of the criteria is met, the security’s amortized cost basis is written down to fair value through current earnings. For securities that do not meet these criteria, the Company evaluates whether the decline in fair value resulted from credit losses or other factors. In evaluating whether a credit loss exists, the Company has set up an initial filter for impairment triggers. Once the quantitative filters have been triggered, the securities are placed on a watch list and an additional assessment is performed to identify whether a credit impairment exists. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency, and adverse conditions specifically related to the security and the issuer, among other factors. If this assessment indicates that a credit loss exists, the Company compares the present value of cash flows expected to be collected from the security with the amortized cost basis. If the present value of cash flows expected to be collected is less than the amortized cost basis for the security, a credit loss exists and an allowance for credit losses is recorded, limited to the amount that the fair value of the security is less than its amortized cost basis. Unrealized losses that have not been recorded through an allowance for credit losses is recognized in other comprehensive income, net of applicable taxes. The Company did not have an allowance for credit losses on investment securities AFS as of December 31, 2022 and December 31, 2021.

Loans Receivable and Allowance

Loans Receivable and Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2022
Receivables [Abstract]
Loans Receivable and Allowance for Credit Losses	LOANS RECEIVABLE AND THE ALLOWANCE FOR CREDIT LOSSES The following is a summary of loans receivable by major category: December 31, 2022 2021 (Dollars in thousands) Loan portfolio composition Real estate loans: Residential $ 76,045 $ 69,199 Commercial 9,170,784 8,816,080 Construction 167,751 220,652 Total real estate loans 9,414,580 9,105,931 Commercial business * 5,109,532 4,208,674 Residential mortgage 846,080 579,626 Consumer and other 33,348 58,512 Loans receivable 15,403,540 13,952,743 Allowance for credit losses (162,359) (140,550) Loans receivable, net of allowance for credit losses $ 15,241,181 $ 13,812,193 __________________________________ * Commercial business loans as of December 31, 2022 and 2021 include $1.9 million and $228.1 million, respectively, in SBA Paycheck Protection Program loans The Company segments its loan portfolio in four major categories: real estate loans, commercial business loans, residential mortgage loans, and consumer and other loans. Real estate loans are extended for the purchase and refinance of commercial real estate and are generally secured by first deeds of trust and are collateralized by residential or commercial properties. Commercial business loans are loans provided to businesses for various purposes such as for working capital, purchasing inventory, debt refinancing, business acquisitions, international trade finance activities, and other business related financing needs and also include warehouse lines of credit, syndicated loans, and SBA Paycheck Protection Program (“PPP”) loans. Residential mortgage loans are extended for personal, family, or household use and are secured by a mortgage or deed of trust. Consumer and other loans consist of home equity, credit card, and other personal loans. The Company had $49.2 million in loans held for sale as of December 31, 2022 compared to $99.0 million at December 31, 2021. Loans held for sale at December 31, 2022 consisted of $450 thousand in residential mortgage loans and $48.8 million in commercial real estate loans rated as substandard, compared to $49.7 million in SBA guaranteed loans, $23.2 million in residential mortgage loans, and $26.2 million in commercial real estate and commercial business loans rated as substandard at December 31, 2021. The tables below detail the activity in the allowance for credit losses (“ACL”) by portfolio segment for the years ended December 31, 2022 and 2021, and 2020. Recoveries for the year ended December 31, 2022 included $17.3 million in recoveries from a single lending relationship that had $29.6 million in charge offs during the year 2021. Charge offs for the year 2021 included $26.2 million in charge offs related to the sale of $275.3 million in loans with elevated credit risk. Real Estate Commercial Business Residential Mortgage Consumer and Other Total (Dollars in thousands) December 31, 2022 Balance, beginning of period $ 108,440 $ 27,811 $ 3,316 $ 983 $ 140,550 Provision (credit) for credit losses (27,451) 31,360 5,626 65 9,600 Loans charged off (6,803) (5,160) (22) (404) (12,389) Recoveries of charge offs 21,698 2,861 — 39 24,598 Balance, end of period $ 95,884 $ 56,872 $ 8,920 $ 683 $ 162,359 December 31, 2021 Balance, beginning of period $ 162,196 $ 39,155 $ 4,227 $ 1,163 $ 206,741 Provision (credit) for credit losses (2,051) (9,982) 12 (179) (12,200) Loans charged off (57,427) (3,558) (923) (328) (62,236) Recoveries of charge offs 5,722 2,196 — 327 8,245 Balance, end of period $ 108,440 $ 27,811 $ 3,316 $ 983 $ 140,550 December 31, 2020 Balance, beginning of period $ 53,593 $ 33,032 $ 5,925 $ 1,594 $ 94,144 CECL day 1 adoption 27,791 (1,022) (543) (26) $ 26,200 Provision (credit) for credit losses 87,619 7,776 (1,155) 760 95,000 Loans charged off (8,658) (6,157) — (1,211) (16,026) Recoveries of charge offs 1,851 5,526 — 46 7,423 Balance, end of period $ 162,196 $ 39,155 $ 4,227 $ 1,163 $ 206,741 The following tables break out the allowance for credit losses and loan balance by measurement methodology at December 31, 2022 and 2021: December 31, 2022 Real Estate Commercial Business Residential Mortgage Consumer and Other Total (Dollars in thousands) Allowance for credit losses: Individually evaluated $ 870 $ 2,941 $ 24 $ 21 $ 3,856 Collectively evaluated 95,014 53,931 8,896 662 158,503 Total $ 95,884 $ 56,872 $ 8,920 $ 683 $ 162,359 Loans outstanding: Individually evaluated $ 43,461 $ 12,477 $ 9,775 $ 436 $ 66,149 Collectively evaluated 9,371,119 5,097,055 836,305 32,912 15,337,391 Total $ 9,414,580 $ 5,109,532 $ 846,080 $ 33,348 $ 15,403,540 December 31, 2021 Real Estate Commercial Business Residential Mortgage Consumer and Other Total (Dollars in thousands) Allowance for credit losses: Individually evaluated $ 2,025 $ 3,056 $ 11 $ 23 $ 5,115 Collectively evaluated 106,415 24,755 3,305 960 135,435 Total $ 108,440 $ 27,811 $ 3,316 $ 983 $ 140,550 Loans outstanding: Individually evaluated $ 83,347 $ 19,407 $ 3,470 $ 409 $ 106,633 Collectively evaluated 9,022,584 4,189,267 576,156 58,103 13,846,110 Total $ 9,105,931 $ 4,208,674 $ 579,626 $ 58,512 $ 13,952,743 The ACL represents management’s best estimate of future lifetime expected losses on its held for investment loan portfolio. The Company calculates its ACL by estimating expected credit losses on a collective basis for loans that share similar risk characteristics. Loans that do not share similar risk characteristics with other loans are evaluated for credit losses on an individual basis. The Company uses a combination of a modeled and non-modeled approach that incorporates current and future economic conditions to estimate lifetime expected losses on a collective basis. The Company uses Probability of Default (“PD”), Loss Given Default (“LGD”), and Exposure at Default (“EAD”) methodologies with quantitative factors and qualitative considerations in calculation of the allowance for credit losses for collectively assessed loans. The Company uses a reasonable and supportable period of 2 years at which point loss assumptions revert back to historical loss information by means of 1 year reversion period. Due to the volatility that arose from the COVID-19 pandemic, the Company assessed whether it would be appropriate to shorten the reasonable and supportable period. However, the Company chose to keep the reasonable and supportable period at 2 years as a shorter period was estimated to result in large reductions in ACL which would not be reflective of the economic deterioration and future uncertainty caused by pandemic. The Company utilizes a baseline forecast scenario published by a third party that incorporates macroeconomic variables including GDP, unemployment rates, interest rates, and commercial real estate prices to project an economic outlook. The forecast scenario is utilized to estimate losses during the reasonable and supportable period. Changes in these assumptions and forecasts could significantly affect the Company’s estimate of future credit losses. See Note 1 “Significant Accounting Policies” of the Notes to Consolidated Financial Statements for further discussion of the Company’s ACL methodology. The increase in ACL for the year ended December 31, 2022 compared to December 31, 2021 was due to a decline in projected macroeconomic variables. The Moody’s consensus forecast scenario used in the December 31, 2022 ACL calculation included a decline in projection for GDP and commercial real estate prices compared to projection at the end of 2021. Overall, economic projection continued to decline throughout the year with an increase the potential for a recession in 2023. The Company maintains a separate ACL for its off-balance sheet unfunded loan commitments. The Company uses a funding rate to allocate the allowance to undrawn exposures. This funding rate is used as a credit conversion factor to capture how much undrawn can potentially become drawn at any point. The funding rate is determined based on a lookback period of 8 quarters. Credit loss is not estimated for off-balance sheet credit exposures that are unconditionally cancellable by the Company. As of December 31, 2022 and 2021, reserves for unfunded loan commitments recorded in other liabilities were $1.4 million and $1.1 million, respectively. For the year ended December 31, 2022, the Company recorded additions to reserves for unfunded commitments in credit related expenses totaling $250 thousand. For the year ended December 31, 2021, the Company recorded a credit to reserves for unfunded commitments totaling $195 thousand. Generally, loans are placed on nonaccrual status if principal and/or interest payments become 90 days or more past due and/or management deems the collectability of the principal and/or interest to be in question, as well as when required by regulatory requirements. Loans to customers whose financial conditions have deteriorated are considered for nonaccrual status whether or not the loan is 90 days or more past due. Generally, payments received on nonaccrual loans are recorded as principal reductions. Loans are returned to accrual status only when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The Company does not recognize interest income while loans are on nonaccrual status. The tables below represent the amortized cost of nonaccrual loans and loans past due 90 or more days and still on accrual status by class of loans and broken out by loans with a recorded ACL and those without a recorded ACL as of December 31, 2022 and 2021. December 31, 2022 Nonaccrual with No ACL Nonaccrual with an ACL Total Nonaccrual (1) Accruing Loans Past Due 90 or More Days (Dollars in thousands) Real estate – residential $ — $ — $ — $ — Real estate – commercial Retail 17,635 1,007 18,642 — Hotel & motel 8,939 347 9,286 — Gas station & car wash 2,134 124 2,258 — Mixed use 781 186 967 — Industrial & warehouse 109 727 836 — Other 184 1,742 1,926 — Real estate – construction — — — — Commercial business 1,618 4,002 5,620 336 Residential mortgage 5,959 3,816 9,775 — Consumer and other — 377 377 65 Total $ 37,359 $ 12,328 $ 49,687 $ 401 December 31, 2021 Nonaccrual with No ACL Nonaccrual with an ACL Total Nonaccrual (1) Accruing Loans Past Due 90 or More Days (Dollars in thousands) Real estate – residential $ — $ — $ — $ — Real estate – commercial Retail 7,586 2,604 10,190 — Hotel & motel 5,471 6,564 12,035 — Gas station & car wash 575 1,267 1,842 — Mixed use 5,307 1,412 6,719 — Industrial & warehouse 687 1,897 2,584 — Other 1,233 5,153 6,386 215 Real estate – construction — — — — Commercial business 4,726 6,299 11,025 1,494 Residential mortgage 275 3,195 3,470 — Consumer and other — 365 365 422 Total $ 25,860 $ 28,756 $ 54,616 $ 2,131 __________________________________ (1) Total nonaccrual loans exclude the guaranteed portion of SBA loans that are in liquidation totaling $9.8 million and $19.5 million, at December 31, 2022 and 2021, respectively. The following table presents the amortized cost of collateral dependent loans as of December 31, 2022 and 2021: December 31, 2022 December 31, 2021 Real Estate Collateral Other Collateral Total Real Estate Collateral Other Collateral Total (Dollars in thousands) Real estate – residential $ — $ — $ — $ — $ — $ — Real estate – commercial 35,523 — 35,523 65,590 — 65,590 Real estate – construction — — — — — — Commercial business 1,618 2,743 4,361 1,767 6,615 8,382 Residential mortgage 5,959 — 5,959 — — — Consumer and other — — — — — — Total $ 43,100 $ 2,743 $ 45,843 $ 67,357 $ 6,615 $ 73,972 Collateral on loans is a significant portion of what secures collateral dependent loans and significant changes to the fair value of the collateral can potentially impact ACL. During the years ended December 31, 2022 and 2021, the Company did not have any significant changes to the extent to which collateral secures its collateral dependent loans due to general deterioration or from other factors. Accrued interest receivables on loans totaled $47.3 million at December 31, 2022 and $36.2 million at December 31, 2021. The following table presents interest income reversals, due to loans being placed on nonaccrual status, by loan segment for the years ended December 31, 2022 and 2021: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Real estate $ 1,906 $ 3,102 $ 1,047 Commercial business 307 62 78 Residential mortgage 309 17 — Consumer and other 1 3 3 Total $ 2,523 $ 3,184 $ 1,128 The following table presents the amortized cost of past due loans, including nonaccrual loans past due 30 or more days, by the number of days past due as of December 31, 2022 and 2021 by class of loans: December 31, 2022 December 31, 2021 30-59 Days 60-89 Days 90 or More Days Total 30-59 Days 60-89 Days 90 or More Days Total (Dollars in thousands) Real estate – residential $ 1,266 $ — $ — $ 1,266 $ — $ — $ — $ — Real estate – commercial Retail — 1,617 521 2,138 1,250 927 9,167 11,344 Hotel & motel 359 564 3,503 4,426 9,320 4,148 4,760 18,228 Gas station & car wash 582 124 — 706 575 — 832 1,407 Mixed use — — 781 781 1,124 — 5,625 6,749 Industrial & warehouse 85 89 268 442 247 — 785 1,032 Other — 333 621 954 1,198 6,522 3,185 10,905 Real estate – construction — — — — — — — — Commercial business 3,258 18 2,137 5,413 1,792 2,362 6,482 10,636 Residential mortgage 2,310 — 5,106 7,416 14,177 — 3,099 17,276 Consumer and other 617 44 308 969 59 21 787 867 Total Past Due $ 8,477 $ 2,789 $ 13,245 $ 24,511 $ 29,742 $ 13,980 $ 34,722 $ 78,444 The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, including, but not limited to, current financial information, historical payment experience, credit documentation, public information, and current economic trends. The Company analyzes loans individually by classifying the loans as to credit risk. This analysis includes all loans with the exception of homogeneous loans, or loans that are evaluated together in pools of similar loans (i.e., home mortgage loans, home equity lines of credit, overdraft loans, express business loans, and automobile loans). Homogeneous loans are not risk rated and credit risk is analyzed largely by the number of days past due. This analysis is performed at least on a quarterly basis. The following table presents the amortized cost basis of loans receivable by class, credit quality indicator, and year of origination as of December 31, 2022 and 2021. December 31, 2022 Term Loan by Origination Year Revolving Loans Total 2022 2021 2020 2019 2018 Prior (Dollars in thousands) Real Estate - Residential Pass / not rated $ 19,256 $ 23,505 $ 9,691 $ 9,017 $ 3,964 $ 5,397 $ 3,995 $ 74,825 Special mention — — — — — — — — Substandard — — — — 661 559 — 1,220 Doubtful / loss — — — — — — — — Subtotal $ 19,256 $ 23,505 $ 9,691 $ 9,017 $ 4,625 $ 5,956 $ 3,995 $ 76,045 Real Estate - Commercial Pass / not rated $ 2,395,805 $ 2,140,650 $ 1,299,144 $ 1,043,970 $ 1,006,454 $ 1,053,970 $ 101,190 $ 9,041,183 Special mention — 14,622 7,301 6,001 13,565 15,912 202 57,603 Substandard — 8,240 1,736 7,881 9,589 44,552 — 71,998 Doubtful / loss — — — — — — — — Subtotal $ 2,395,805 $ 2,163,512 $ 1,308,181 $ 1,057,852 $ 1,029,608 $ 1,114,434 $ 101,392 $ 9,170,784 Real Estate - Construction Pass / not rated $ 6,570 $ 29,918 $ 63,192 $ 23,418 $ 8,135 $ 4,900 $ 89 $ 136,222 Special mention — — — 14,425 — 10,834 — 25,259 Substandard — — — — — 6,270 — 6,270 Doubtful / loss — — — — — — — — Subtotal $ 6,570 $ 29,918 $ 63,192 $ 37,843 $ 8,135 $ 22,004 $ 89 $ 167,751 Commercial Business Pass / not rated $ 2,311,344 $ 1,090,034 $ 291,592 $ 298,133 $ 69,721 $ 95,531 $ 864,343 $ 5,020,698 Special mention 17,911 37,393 13,707 110 — 24 5,256 74,401 Substandard — 2,833 5,889 1,000 1,020 3,691 — 14,433 Doubtful / loss — — — — — — — — Subtotal $ 2,329,255 $ 1,130,260 $ 311,188 $ 299,243 $ 70,741 $ 99,246 $ 869,599 $ 5,109,532 Residential Mortgage Pass / not rated $ 382,935 $ 283,163 $ 1,386 $ 30,603 $ 62,976 $ 75,242 $ — $ 836,305 Special mention — — — — — — — — Substandard — 311 — 967 384 8,113 — 9,775 Doubtful / loss — — — — — — — — Subtotal $ 382,935 $ 283,474 $ 1,386 $ 31,570 $ 63,360 $ 83,355 $ — $ 846,080 Consumer and Other Pass / not rated $ 10,005 $ 723 $ 3,351 $ 223 $ 10 $ 1,420 $ 17,239 $ 32,971 Special mention — — — — — — — — Substandard — — — — — 377 — 377 Doubtful / loss — — — — — — — — Subtotal $ 10,005 $ 723 $ 3,351 $ 223 $ 10 $ 1,797 $ 17,239 $ 33,348 Total Loans Pass / not rated $ 5,125,915 $ 3,567,993 $ 1,668,356 $ 1,405,364 $ 1,151,260 $ 1,236,460 $ 986,856 $ 15,142,204 Special mention 17,911 52,015 21,008 20,536 13,565 26,770 5,458 157,263 Substandard — 11,384 7,625 9,848 11,654 63,562 — 104,073 Doubtful / loss — — — — — — — — Total $ 5,143,826 $ 3,631,392 $ 1,696,989 $ 1,435,748 $ 1,176,479 $ 1,326,792 $ 992,314 $ 15,403,540 December 31, 2021 Term Loan by Origination Year Revolving Loans Total 2021 2020 2019 2018 2017 Prior (Dollars in thousands) Real Estate - Residential Pass / not rated $ 26,093 $ 10,471 $ 11,442 $ 4,952 $ 2,987 $ 7,260 $ 4,403 $ 67,608 Special mention — — — 534 — 924 — 1,458 Substandard — — — 133 — — — 133 Doubtful / loss — — — — — — — — Subtotal $ 26,093 $ 10,471 $ 11,442 $ 5,619 $ 2,987 $ 8,184 $ 4,403 $ 69,199 Real Estate - Commercial Pass / not rated $ 2,451,662 $ 1,415,909 $ 1,252,851 $ 1,238,425 $ 883,790 $ 1,086,182 $ 89,501 $ 8,418,320 Special mention 5,553 8,882 39,567 20,203 27,204 73,090 5,970 180,469 Substandard 7,436 7,718 17,533 25,330 53,000 105,995 279 217,291 Doubtful / loss — — — — — — — — Subtotal $ 2,464,651 $ 1,432,509 $ 1,309,951 $ 1,283,958 $ 963,994 $ 1,265,267 $ 95,750 $ 8,816,080 Real Estate - Construction Pass / not rated $ 16,545 $ 67,628 $ 32,044 $ 32,908 $ 8,292 $ 5,685 $ 89 $ 163,191 Special mention — — — 45,996 5,074 6,391 — 57,461 Substandard — — — — — — — — Doubtful / loss — — — — — — — — Subtotal $ 16,545 $ 67,628 $ 32,044 $ 78,904 $ 13,366 $ 12,076 $ 89 $ 220,652 Commercial Business Pass / not rated $ 1,755,104 $ 431,145 $ 461,460 $ 98,812 $ 53,629 $ 70,294 $ 1,299,372 $ 4,169,816 Special mention 1,379 523 4,780 2,897 550 5,083 2,594 17,806 Substandard 3,796 941 2,308 1,651 3,803 3,461 5,092 21,052 Doubtful / loss — — — — — — — — Subtotal $ 1,760,279 $ 432,609 $ 468,548 $ 103,360 $ 57,982 $ 78,838 $ 1,307,058 $ 4,208,674 Residential Mortgage Pass / not rated $ 282,191 $ 1,420 $ 40,377 $ 112,743 $ 85,446 $ 53,979 $ — $ 576,156 Special mention — — — — — — — — Substandard 275 — 128 394 541 2,132 — 3,470 Doubtful / loss — — — — — — — — Subtotal $ 282,466 $ 1,420 $ 40,505 $ 113,137 $ 85,987 $ 56,111 $ — $ 579,626 Consumer and Other Pass / not rated $ 19,203 $ 5,347 $ 1,783 $ 1,699 $ 1,769 $ 6,165 $ 22,095 $ 58,061 Special mention — — — — — — — — Substandard — — — — — 451 — 451 Doubtful / loss — — — — — — — — Subtotal $ 19,203 $ 5,347 $ 1,783 $ 1,699 $ 1,769 $ 6,616 $ 22,095 $ 58,512 Total Loans Pass / not rated $ 4,550,798 $ 1,931,920 $ 1,799,957 $ 1,489,539 $ 1,035,913 $ 1,229,565 $ 1,415,460 $ 13,453,152 Special mention 6,932 9,405 44,347 69,630 32,828 85,488 8,564 257,194 Substandard 11,507 8,659 19,969 27,508 57,344 112,039 5,371 242,397 Doubtful / loss — — — — — — — — Total $ 4,569,237 $ 1,949,984 $ 1,864,273 $ 1,586,677 $ 1,126,085 $ 1,427,092 $ 1,429,395 $ 13,952,743 For the years ended December 31, 2022 and 2021, there were no revolving loans converted to term loans. The Company may reclassify loans held for investment to loans held for sale in the event that the Company plans to sell loans that were originated with the intent to hold to maturity. Loans transferred from held for investment to held for sale are carried at the lower of cost or fair value. The breakdown of loans by type that were reclassified from held for investment to held for sale for the years ended December 31, 2022, 2021, and 2020 are presented in the following table: Year Ended December 31, 2022 2021 2020 Transfer of loans held for investment to held for sale (Dollars in thousands) Real estate - commercial $ 257,317 $ 365,426 $ — Commercial business 54,218 100,154 — Residential mortgage — 7,018 — Consumer — — 1,243 Total $ 311,535 $ 472,598 $ 1,243 The following tables present a breakdown of loans by recorded ACL, broken out by loans evaluated individually and collectively at December 31, 2022 and 2021: December 31, 2022 Real Estate – Real Estate – Real Estate – Commercial Residential Consumer Total (Dollars in thousands) Individually evaluated loans $ — $ 43,461 $ — $ 12,477 $ 9,775 $ 436 $ 66,149 ACL on individually evaluated loans $ — $ 870 $ — $ 2,941 $ 24 $ 21 $ 3,856 Individually evaluated loans ACL coverage N/A 2.00 % N/A 23.57 % 0.25 % 4.82 % 5.83 % Collectively evaluated loans $ 76,045 $ 9,127,323 $ 167,751 $ 5,097,055 $ 836,305 $ 32,912 $ 15,337,391 ACL on collectively evaluated loans $ 1,014 $ 92,947 $ 1,053 $ 53,931 $ 8,896 $ 662 $ 158,503 Collectively evaluated loans ACL coverage 1.33 % 1.02 % 0.63 % 1.06 % 1.06 % 2.01 % 1.03 % Total loans $ 76,045 $ 9,170,784 $ 167,751 $ 5,109,532 $ 846,080 $ 33,348 $ 15,403,540 Total ACL $ 1,014 $ 93,817 $ 1,053 $ 56,872 $ 8,920 $ 683 $ 162,359 Total ACL to total loans 1.33 % 1.02 % 0.63 % 1.11 % 1.05 % 2.05 % 1.05 % December 31, 2021 Real Estate – Real Estate – Real Estate – Commercial Residential Consumer Total (Dollars in thousands) Individually evaluated loans $ — $ 83,347 $ — $ 19,407 $ 3,470 $ 409 $ 106,633 ACL on individually evaluated loans $ — $ 2,025 $ — $ 3,056 $ 11 $ 23 $ 5,115 Individually evaluated loans ACL coverage N/A 2.43 % N/A 15.75 % 0.32 % 5.62 % 4.80 % Collectively evaluated loans $ 69,199 $ 8,732,733 $ 220,652 $ 4,189,267 $ 576,156 $ 58,103 $ 13,846,110 ACL on collectively evaluated loans $ 729 $ 104,145 $ 1,541 $ 24,755 $ 3,305 $ 960 $ 135,435 Collectively evaluated loans ACL coverage 1.05 % 1.19 % 0.70 % 0.59 % 0.57 % 1.65 % 0.98 % Total loans $ 69,199 $ 8,816,080 $ 220,652 $ 4,208,674 $ 579,626 $ 58,512 $ 13,952,743 Total ACL $ 729 $ 106,170 $ 1,541 $ 27,811 $ 3,316 $ 983 $ 140,550 Total ACL to total loans 1.05 % 1.20 % 0.70 % 0.66 % 0.57 % 1.68 % 1.01 % Under certain circumstances, the Company provides borrowers relief through loan modifications. These modifications are either temporary in nature (“temporary modifications”) or are more substantive. The temporary modifications generally consist of interest only payments for a three six TDR loans are individually evaluated in accordance with ASC 310 and ASC 326. The concessions may be granted in various forms, including reduction in the stated interest rate, reduction in the amount of principal amortization, forgiveness of a portion of a loan balance or accrued interest, or extension of the maturity date. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed on the probability that the borrower will be in payment default on their debt in the foreseeable future without the modification. This evaluation is performed under the Bank’s internal underwriting policy. At December 31, 2022, TDR loans totaled $41.1 million, compared to $65.5 million at December 31, 2021. The balance of loans with modified terms due to COVID-19 as of December 31, 2022 totaled $0 compared to $22.8 million at December 31, 2021. The loans were modified in accordance with Section 4013 of the CARES Act. The CARES Act provides banks the option to temporarily suspend certain requirements under U.S. GAAP related to TDR for a limited period of time to account for the effects of COVID-19 if (i) the loan modification is made between March 1, 2020 and the earlier of January 1, 2022 or 60 days after the end of the coronavirus emergency declaration and (ii) the applicable loan was not more than 30 days past due as of December 31, 2019. As such, all modified loans that met the criteria outlined within Section 4013 of the CARES Act were not classified as TDR loans unless the loans were TDR prior to the COVID-19 modification or borrowers were identified to be experiencing financial difficulty prior to the COVID-19 pandemic (see “COVID-19 Related Loan Modifications” in the Financial Condition section of the Management’s Discussion and Analysis of Financial Condition and Results of Operations for more information). A summary of the amortized cost of TDR loans on accrual and nonaccrual status by type of concession as of December 31, 2022 and 2021 is presented below: December 31, 2022 TDR Loans on Accrual Status TDR Loans on Nonaccrual Status Total TDRs Real Estate Commercial Business Residential Mortgage Other Real Estate Commercial Business Residential Mortgage Other (Dollars in thousands) Payment concession $ 5,404 $ 501 $ — $ — $ 20,193 $ 171 $ — $ — $ 26,269 Maturity / amortization concession 2,190 6,175 — 280 101 2,245 — 87 11,078 Rate concession 2,195 186 — — — 1,398 — — 3,779 Total $ 9,789 $ 6,862 $ — $ 280 $ 20,294 $ 3,814 $ — $ 87 $ 41,126 December 31, 2021 TDR Loans on Accrual Status TDR Loans on Nonaccrual Status Total Real Estate Commercial Business Residential Mortgage Other Real Estate Commercial Business Residential Mortgage Other (Dollars in thousands) Payment concession $ 23,196 $ 790 $ — $ 16 $ 7,533 $ 420 $ — $ — $ 31,955 Maturity / amortization concession 15,449 7,284 — 183 269 3,109 — 117 26,411 Rate concession 5,161 339 — — 234 1,413 — — 7,147 Total $ 43,806 $ 8,413 $ — $ 199 $ 8,036 $ 4,942 $ — $ 117 $ 65,513 TDR loans on accrual status are comprised of loans that were accruing at the time of restructuring and for which the Company anticipates full repayment of both principal and interest under the restructured terms. TDR loans that are on nonaccrual status can be returned to accrual status after a period of sustained performance, generally determined to be six months of timely payments as modified. Sustained performance includes the periods prior to the modification and if the prior performance met or exceeded the modified terms. TDR loans on accrual status at December 31, 2022 were comprised of 24 commercial real estate loans totaling $9.8 million, 11 commercial business loans totaling $6.9 million, and 9 consumer and other loans totaling $280 thousand. TDR loans on accrual status at December 31, 2021 were comprised of 31 commercial real estate loans totaling $43.8 million, 19 commercial business loans totaling $8.4 million, and 10 consumer and other loans totaling $199 thousand. The Company expects that TDR loans on accrual status as of December 31, 2022, which were all performing in accordance with their restructured terms, to continue to comply with the restructured terms because of the reduced principal or interest payments on these loans. TDR loans that were restructured at market interest rates and had sustained performance as agreed under the modified loan terms may be reclassified as non-TDR after each year end but are reserved for under ASC 310-10. The Company recorded an allowance for credit losses totaling $2.8 million, $2.7 million, and $4.8 million for TDR loans as of December 31, 2022, 2021, and 2020, respectively. As of December 31, 2022 and 2021, the Company had outstanding commitments to extend additional funds to these borrowers totaling $40 thousand and $557 thousand, respectively. The following tables present the amortized cost of loans classified as TDR during the years ended December 31, 2022, 2021, and 2020 by class of loans. Year Ended December 31, 2022 2021 2020 Number of Loans Balance Number of Loans Balance Number of Loans Balance (Dollars in thousands) Real estate – residential — $ — — $ — — $ — Real estate – commercial Retail — — 5 24,169 3 1,589 Hotel & motel 1 1,932 — — — — Gas station & car wash — — 1 575 2 501 Mixed use — — — — 2 1,215 Industrial & warehouse — — 1 506 1 256 Other — — — — 2 2,722 Real estate – construction — — — — — — Commercial business — — 3 309 6 1,620 Residential mortgage — — — — — — Consumer and other — — 2 13 9 113 Total 1 $ 1,932 12 $ 25,572 25 $ 8,016 The allowance for credit losses for the TDRs modified during the years ended December 31, 2022, 2021, and 2020 were $0, $86 thousand, and $1.5 million, respectively. There were no charge offs for TDR loans modified during the years ended December 31, 2022, 2021, and 2020. There was one new TDR loan modified with a payment concession totaling $1.9 million during the year ended December 31, 2022. For the year ended December 31, 2021, there were five TDR loans modified with payment concessions totaling $17.8 million and seven loans modified through maturity concessions totaling $7.8 million. For the year ended December 31, 2020, there were 11 TDR loans modified with payment concessions totaling $2.0 million, 12 TDR loans modified through maturity concessions totaling $5.4 million, and two TDR loans modified through interest rate concessions totaling $622 thousand. The following tables present the amortized cost balance of loans modified as TDRs within the previous twelve months ended December 31, 2022, 2021, and 2020 that subsequently had payment defaults during the years ended December 31, 2022, 2021, and 2020: For the Year Ended December 31, 2022 2021 2020 Number of Loans Balance Number of Loans Balance Number of Loans Balance (Dollars in thousands) Real estate – residential — $ — — $ — — $ — Real estate – commercial Retail — — 3 5,906 1 478 Hotel & motel — — — — — — Gas station & car wash — — 1 575 1 464 Mixed Use — — — — 2 1,215 Industrial & warehouse — — — — — — Other — — — — — — Real estate – construction — — — — — — Commercial business — — 1 102 1 164 Residential mortgage — — — — — — Consumer and other — — 2 13 5 30 Total — $ — 7 $ 6,596 10 $ 2,351 A loan is considered to be in payment default once it is 30 days contractually past due under the modified terms. The Company recorded $0, $101 thousand and $120 thousand in ACL for TDR loans that had payment defaults during the year ended December 31, 2022, 2021 and 2020. There were no charge offs for TDR loans that had payment defaults during the year ended December 31, 2022, 2021 and 2020. There were seven TDR loans that subsequently defaulted during the year ended December 31, 2021. Three commercial real estate loans were modified through maturity concessions totaling $5.9 million. Four TDR loans that subsequently defaulted were modified through payment concessions which were comprised of one commercial real estate loan totaling to $575 thousand, one commercial business loan totaling to $102 thousand, and two consumer and other loans totaling to $13 thousand. There were ten TDR loans that subsequently defaulted in 2020. The four maturity concessions were comprised of two commercial real estate loans totaling $1.2 million and two consumer and other loans totaling $11 thousand. Four were modified through payment concessions comprised of one commercial real estate for $464 thousand and three consumer loans totaling $19 thousand. The two interest rate concessions were comprised of one commercial real estate loans for $458 thousand and one commercial business for $164 thousand. Related Party Loans In the ordinary course of business, the Company enters into loan transactions with certain of its executives and directors or associates of such executives and directors (“Related Parties”). All loans to Related Parties were made at substantially the same terms and conditions at the time of origination as other originated loans to borrowers that were not affiliated with the Company. All loans to Related Parties were current as of December 31, 2022 and 2021, and the outstanding principal balance as of December 31, 2022 and 2021 was $92.8 million and $31.9 million, respectively. Loans to Related Parties at December 31, 2022 consisted of $92.8 million in commercial real estate loans and $29 thousand in commercial business loans. Loans to Related Parties at December 31, 2021 consisted of $31.2 million in commercial real estate loans and $747 thousand in commercial business loans. The increase in Related Party loans from December 31, 2021 to December 31, 2022 was due to new loans totaling $64.2 million offset by payoffs of $2.5 million and payments of $756 thousand.

Goodwill, Intangible Assets, an

Goodwill, Intangible Assets, and Servicing Assets	12 Months Ended
	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Intangible Assets, and Servicing Assets	GOODWILL AND OTHER INTANGIBLE ASSETS The carrying amount of the Company’s goodwill as of December 31, 2022 and 2021 was $464.5 million. Goodwill represents the excess of the purchase price over the sum of the estimated fair values of the tangible and identifiable intangible assets acquired less the estimated fair value of the liabilities assumed. Goodwill has an indefinite useful life and is evaluated for impairment annually or more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset’s fair value. For the year ended December 31, 2022, the Company performed a qualitative assessment to test for impairment and the management has concluded that there was no impairment. As the Company operates as single business unit, goodwill impairment was assessed based on the Company as a whole. Goodwill is not amortized for book purposes and is not tax deductible. Core deposit intangible assets are amortized over their estimated lives, which range from seven December 31, 2022 December 31, 2021 Core Deposit Intangibles Related To: Amortization Period Gross Accumulated Carrying Amount Accumulated Carrying Amount (Dollars in thousands) Foster Bankshares acquisition 10 years $ 2,763 $ (2,668) $ 95 $ (2,504) $ 259 Wilshire Bancorp acquisition 10 years 18,138 (12,507) 5,631 (10,726) 7,412 Total $ 20,901 $ (15,175) $ 5,726 $ (13,230) $ 7,671 Total amortization expense on core deposit intangibles was $1.9 million and $2.0 million for the years ended December 31, 2022 and 2021, respectively. The estimated future amortization expense for core deposit intangibles is as follows: $1.8 million in 2023, $1.6 million in 2024, $1.5 million in 2025, and $829 thousand in 2026.

Property, Plant, and Equipment

Property, Plant, and Equipment	12 Months Ended
	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment Disclosure	PREMISES AND EQUIPMENT The following table provides information regarding the premises and equipment at December 31, 2022 and 2021: December 31, 2022 2021 (Dollars in thousands) Land $ 11,244 $ 11,244 Building and improvements 24,191 24,018 Furniture, fixtures, and equipment 32,347 28,829 Leasehold improvements 29,061 28,201 Vehicles 123 123 Software/License 17,532 14,341 Total premises and equipment, gross 114,498 106,756 Less: Accumulated depreciation and amortization (67,639) (61,089) Total premises and equipment, net $ 46,859 $ 45,667 Depreciation and amortization expense totaled $7.9 million, $8.2 million, and $8.2 million for the years ended December 31, 2022, 2021, and 2020, respectively.

Leases

Leases	12 Months Ended
	Dec. 31, 2022
Leases [Abstract]
Leases	LEASES The Company’s operating leases are real estate leases which are comprised of bank branch locations, loan production offices, and office spaces with remaining lease terms ranging from 1 to 10 years as of December 31, 2022. Certain lease arrangements contain extension options which are typically around 5 years. As these extension options are not generally considered reasonably certain of exercise, they are not included in the lease term. Operating lease right-of-use (“ROU”) assets represent the Company’s right to use the underlying asset during the lease term and operating lease liabilities represent the Company’s obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at lease commencement based on the present value of the remaining lease payments using the Company’s incremental borrowing rate at the lease commencement date. The Company’s occupancy expense also includes variable lease costs which is comprised of the Company's share of actual costs for utilities, common area maintenance, property taxes, and insurance that are not included in lease liabilities and are expensed as incurred. Variable lease costs also include rent escalations based on changes to indices, such as the Consumer Price Index. The table below summarizes the Company’s net lease cost: Year Ended December 31, 2022 2021 (Dollars in thousands) Operating lease cost $ 15,455 $ 15,487 Variable lease cost 4,617 3,205 Sublease income (687) (456) Net lease cost $ 19,385 $ 18,236 Rent expense for the years ended December 31, 2022, 2021, and 2020 totaled $17.8 million, $18.3 million, and $18.6 million, respectively. The Company uses its incremental borrowing rate to present value lease payments in order to recognize a ROU asset and the related lease liability. The Company calculates its incremental borrowing rate by adding a spread to the FHLB borrowing interest rate at a given period. The table below summarizes supplemental balance sheet information related to operating leases: December 31, 2022 2021 (Dollars in thousands) Operating lease right-of-use assets $ 55,034 $ 52,701 Current portion of long-term lease liabilities 13,769 12,678 Long-term lease liabilities 45,319 44,625 Weighted-average remaining lease term - operating leases 4.7 years 5.2 years Weighted-average discount rate - operating leases 2.44 % 2.43 % There was no impairment on operating right-of-use assets during 2022 and 2021. The table below summarizes the maturity of remaining lease liabilities: December 31, 2022 (Dollars in thousands) 2023 $ 15,014 2024 13,937 2025 12,187 2026 11,431 2027 5,918 2028 and thereafter 4,322 Total lease payments 62,809 Less: imputed interest 3,721 Total lease obligations $ 59,088 As of December 31, 2022, the Company did not have any additional operating lease commitments that have not yet commenced.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2022
Deposits [Abstract]
Deposits	DEPOSITS The aggregate amounts of time deposits in denominations of more than $250 thousand at December 31, 2022 and 2021, was $2.39 billion and $1.49 billion, respectively. Included in time deposits of more than $250 thousand were $300.0 million in California State Treasurer’s deposits at December 31, 2022 and 2021. The California State Treasurer’s deposits are subject to withdrawal based on the State’s periodic evaluations. The Company is required to pledge eligible collateral of at least 110% of outstanding deposits. At December 31, 2022 and 2021, securities with fair values of approximately $348.0 million and $359.8 million, respectively, were pledged as collateral for the California State Treasurer’s deposit. The Company also utilizes brokered deposits as a secondary source of funds. Total brokered deposits at December 31, 2022 and 2021 totaled $1.18 billion and $810.9 million, respectively. Brokered deposits at December 31, 2022 consisted of $70.2 million in money market and NOW accounts and $1.11 billion in time deposit accounts. Brokered deposits at December 31, 2021 consisted of $770.0 million in money market and NOW accounts and $40.9 million in time deposit accounts. At December 31, 2022, the scheduled maturities for time deposits were as follows: December 31, 2022 (Dollars in thousands) Scheduled maturities in: 2023 $ 4,973,023 2024 14,861 2025 1,121 2026 550 2027 505 2028 and thereafter — Total $ 4,990,060 The following table presents the maturity schedules of time deposits in amounts of more than $250 thousand as of December 31, 2022: December 31, 2022 (Dollars in thousands) Three months or less $ 242,755 Over three months through six months 509,744 Over six months through twelve months 1,629,667 Over twelve months 3,407 Total $ 2,385,573 Interest expense on deposits for the periods indicated is summarized as follows: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Money market and NOW $ 68,961 $ 22,867 $ 34,529 Savings deposits 3,802 3,623 3,475 Time deposits 42,076 15,521 72,365 Total deposit interest expense $ 114,839 $ 42,011 $ 110,369

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Borrowings	BORROWINGS At December 31, 2022, borrowings totaled $865.0 million consisting of $600.0 million in FHLB borrowings and $265.0 million in borrowings from the FRB compared to $300.0 million in FHLB borrowings at December 31, 2021. There were no borrowings from the FRB at December 31, 2021. The Company maintains a line of credit with the FHLB of San Francisco as a secondary source of funds. The borrowing capacity with the FHLB is limited to the lower of either 25% of the Bank’s total assets or the Bank’s collateral capacity, and was $4.59 billion and $4.45 billion at December 31, 2022 and 2021, respectively. The terms of this credit facility require the Company to pledge eligible collateral with the FHLB equal to at least 100% of outstanding advances. The Company also has an unsecured credit facility with the FHLB that totaled $81.2 million at December 31, 2022 and 2021. At December 31, 2022 and 2021, real estate secured loans with a carrying amount of approximately $8.08 billion and $6.96 billion, respectively, were pledged at the FHLB for outstanding advances and remaining borrowing capacity. At December 31, 2022 and 2021, other than FHLB stock, no securities were pledged as collateral at the FHLB. The purchase of FHLB stock is a prerequisite to become a member of the FHLB system, and the Company is required to own a certain amount of FHLB stock based on total asset size and outstanding borrowings. At December 31, 2022 and 2021, FHLB advances totaled $600.0 million and $300.0 million, and had weighted average effective interest rates of 3.40% and 0.92%, respectively. At December 31, 2022, $100.0 million in advances had fixed interest rates until maturity and $500.0 million in advances had variable interest rates. All FHLB advances at December 31, 2022 had maturities in January 2023. The interest rates on FHLB advances as of December 31, 2022 ranged between 3.24% and 4.20%. At December 31, 2022, the Company’s remaining borrowing capacity with the FHLB was $3.98 billion. As a member of the Federal Reserve Bank (“FRB”) system, the Bank may also borrow from the FRB of San Francisco. The maximum amount that the Bank may borrow from the FRB’s discount window is up to 99% of the fair market value of the qualifying loans and securities that are pledged. At December 31, 2022, the outstanding principal balance of the qualifying loans pledged at the FRB was $794.1 million and there was one investment security pledged at the discount window with a fair value of $1.0 million. The Company had $265.0 million and $0 in borrowings from the FRB discount window at December 31, 2022 and December 31, 2021, respectively. At December 31, 2022 and 2021, the total remaining available borrowing capacity at the FRB discount window was $405.1 million and $606.6 million, respectively. The FRB borrowing outstanding at December 31, 2022 was an overnight borrowing and had an interest rate of 4.50%. The Company also maintains unsecured borrowing lines with other banks. There were no unsecured borrowings from other banks at December 31, 2022 and 2021.

Subordinated Debentures and Con

Subordinated Debentures and Convertible Notes	12 Months Ended
	Dec. 31, 2022
Subordinated Borrowings [Abstract]
Subordinated Debentures and Convertible Notes	SUBORDINATED DEBENTURES AND CONVERTIBLE NOTES Subordinated Debt At December 31, 2022, the Company had 9 wholly owned subsidiary grantor trusts that had issued $126.0 million of pooled trust preferred securities. Trust preferred securities accrue and pay distributions periodically at specified annual rates as provided in the indentures. The trusts used the net proceeds from the offering to purchase a like amount of subordinated debentures (the “Debentures”). The Debentures are the sole assets of the trusts. The Company’s obligations under the subordinated debentures and related documents, taken together, constitute a full and unconditional guarantee by the Company of the obligations of the trusts. The trust preferred securities are mandatorily redeemable upon the maturity of the Debentures, or upon earlier redemption as provided in the indentures. The Company has the right to redeem the Debentures in whole (but not in part) on a quarterly basis at a redemption price specified in the indentures plus any accrued but unpaid interest to the redemption date. The Company also has a right to defer consecutive payments of interest on the debentures for up to five years. The following table is a summary of trust preferred securities and Debentures at December 31, 2022: Issuance Trust Issuance Date Trust Preferred Security Amount Carrying Value of Debentures Rate Type Current Rate Maturity Date (Dollars in thousands) Nara Capital Trust III 06/05/2003 $ 5,000 $ 5,155 Variable 7.919% 06/15/2033 Nara Statutory Trust IV 12/22/2003 5,000 5,155 Variable 6.929% 01/07/2034 Nara Statutory Trust V 12/17/2003 10,000 10,310 Variable 7.688% 12/17/2033 Nara Statutory Trust VI 03/22/2007 8,000 8,248 Variable 6.419% 06/15/2037 Center Capital Trust I 12/30/2003 18,000 14,937 Variable 6.929% 01/07/2034 Wilshire Trust II 03/17/2005 20,000 16,435 Variable 6.528% 03/17/2035 Wilshire Trust III 09/15/2005 15,000 11,722 Variable 6.169% 09/15/2035 Wilshire Trust IV 07/10/2007 25,000 18,932 Variable 6.149% 09/15/2037 Saehan Capital Trust I 03/30/2007 20,000 15,671 Variable 6.350% 06/30/2037 Total $ 126,000 $ 106,565 The carrying value of Debentures at December 31, 2022 and 2021 was $106.6 million and $105.4 million, respectively. At December 31, 2022 and 2021, acquired Debentures had remaining discounts of $23.3 million and $24.5 million, respectively. The carrying balance of Debentures is net of remaining discounts and includes common trust securities. The Company’s investment in the common trust securities of the issuer trusts was $3.9 million at December 31, 2022 and 2021, and is included in other assets. Although the subordinated debt issued by the trusts are not included as a component of stockholders’ equity in the Consolidated Statements of Financial Condition, the debt is treated as capital for regulatory purposes. The Company’s trust preferred security debt issuances (less common trust securities) are includable in Tier 1 capital up to a maximum of 25% of capital on an aggregate basis as they were grandfathered in under BASEL III. Any amount that exceeds 25% qualifies as Tier 2 capital. Convertible Notes In 2018, the Company issued $217.5 million aggregate principal amount of 2.00% convertible senior notes maturing on May 15, 2038 in a private offering to qualified institutional buyers under Rule 144A of the Securities Act of 1933. The convertible notes can be converted into shares of the Company’s common stock at an initial rate of 45.0760 shares per $1,000 principal amount of the notes (equivalent to an initial conversion price of approximately $22.18 per share of common stock which represents a premium of 22.50% to the closing stock price on the date of the pricing of the notes). Holders of the convertible notes have the option to convert all or a portion of the notes at any time on or after February 15, 2023. Prior to February 15, 2023, the convertible notes cannot be converted unless under certain specified scenarios. The convertible notes can be called by the Company, in part or in whole, on or after May 20, 2023 for 100% of the principal amount in cash. Holders of the convertible notes also have the option to put the notes back to the Company on May 15, 2023, May 15, 2028, or May 15, 2033 for 100% of the principal amount in cash. The convertible notes can be settled in cash, stock, or a combination of stock and cash at the option of the Company. The convertible notes issued by the Company were initially separated into a debt component and an equity component which represents the stock conversion option. The present value of the convertible notes was calculated based on a discount rate of 4.25%, which represented the current offering rate for similar types of debt without conversion options. The difference between the principal amount of the notes and the present value was recorded as the convertible note discount and additional paid-in capital. The issuance costs related to the offering were also allocated into a debt component to be capitalized, and an equity component in the same percentage allocation of debt and equity of the convertible note. On January 1, 2021, the Company early adopted ASU 2020-06 under the modified retrospective approach. Subsequently, the Company accounts for its convertible notes as a single debt instrument. At the adoption of ASU 2020-06, portions previously allocated to equity and the remaining convertible notes discount were both reversed. The reversal of the equity portions of the convertible notes totaled $18.3 million, net of taxes which was recorded as a reduction to additional paid-in capital. The adoption of ASU 2020-06 resulted in a $10.7 million net adjustment to beginning retained earnings. The value of the convertible notes at issuance and the carrying value as of December 31, 2022, 2021 and 2020 are presented in the tables below: Capitalization Gross December 31, 2022 Total Capitalization Carrying Amount (Dollars in thousands) Convertible notes principal balance $ 217,500 $ — $ 217,500 Issuance costs to be capitalized 5 years (4,119) 3,767 (352) Carrying balance of convertible notes $ 213,381 $ 3,767 $ 217,148 Capitalization Gross December 31, 2021 Total Capitalization Carrying Amount (Dollars in thousands) Convertible notes principal balance $ 217,500 $ — $ 217,500 Issuance costs to be capitalized 5 years (4,119) 2,828 (1,291) Carrying balance of convertible notes $ 213,381 $ 2,828 $ 216,209 Amortization/ Capitalization Gross December 31, 2020 Accumulated Amortization / Capitalization Carrying Amount (Dollars in thousands) Convertible notes principal balance $ 217,500 $ — $ 217,500 Discount 5 years (21,880) 10,951 (10,929) Issuance costs to be capitalized 5 years (4,119) 2,113 (2,006) Carrying balance of convertible notes $ 191,501 $ 13,064 $ 204,565 Interest expense on the convertible notes for the years ended December 31, 2022, 2021 and 2020 totaled $5.3 million, $5.3 million, and $9.5 million, respectively. With the adoption of ASU 2020-06, interest expense for the Company’s convertible notes consists of accrued interest on the convertible note coupon and interest expense from capitalized issuance costs. Issuance cost capitalization expense will only be recorded for the first five

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The following presents a summary of income tax provision follows for the years ended December 31: Current Deferred Total (Dollars in thousands) 2022 Federal $ 52,676 $ (6,366) $ 46,310 State 34,050 (2,589) 31,461 $ 86,726 $ (8,955) $ 77,771 2021 Federal $ 28,382 $ 12,599 $ 40,981 State 22,692 7,027 29,719 $ 51,074 $ 19,626 $ 70,700 2020 Federal $ 28,284 $ (11,079) $ 17,205 State 20,490 (6,919) 13,571 $ 48,774 $ (17,998) $ 30,776 A reconciliation of the difference between the federal statutory income tax rate and the effective tax rate is shown in the following table for the years indicated: Year Ended December 31, 2022 2021 2020 Statutory tax rate 21.00 % 21.00 % 21.00 % State taxes-net of federal tax effect 8.58 % 8.59 % 8.56 % CRA investment tax credit (2.99) % (3.75) % (7.34) % Bank owned life insurance (0.22) % (0.17) % (0.05) % Tax exempt municipal bonds and loans (0.26) % (0.17) % (0.38) % State tax rate change 0.15 % (0.04) % (2.76) % Changes in uncertain tax positions (0.23) % 0.07 % 1.63 % Other 0.24 % 0.15 % 0.97 % Effective income tax rate 26.27 % 25.68 % 21.63 % Deferred tax assets and liabilities at December 31, 2022 and 2021 were comprised of the following: December 31, 2022 2021 (Dollars in thousands) Deferred tax assets: Statutory bad debt deduction less than financial statement provision $ 53,225 $ 46,367 Net operating loss carry-forward 1,396 1,552 Investment security provision 469 469 State tax deductions 5,210 3,403 Accrued compensation 45 86 Deferred compensation 107 103 Mark to market on loans held for sale 3 1,721 Nonaccrual loan interest 4,044 4,290 Other real estate owned 455 421 Non-qualified stock option and restricted share expense 4,322 3,122 Lease liabilities 18,751 18,209 Unrealized loss on securities available for sale 96,319 4,583 Other 8,178 5,782 Total deferred tax assets $ 192,524 $ 90,108 Deferred tax liabilities: Purchase accounting fair value adjustment $ (6,583) $ (5,978) Depreciation (293) (6) FHLB stock dividends (332) (257) Deferred loan costs (9,983) (10,615) State taxes deferred and other (3,875) (3,332) Prepaid expenses (1,677) (942) Amortization of intangibles (1,908) (2,513) ROU asset (17,464) (16,746) Total deferred tax liabilities $ (42,115) $ (40,389) Net deferred tax assets $ 150,409 $ 49,719 Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion, or all, of the deferred tax asset will not be realized. In assessing the realization of deferred tax assets, management evaluates both positive and negative evidence, including the existence of any cumulative losses in the current year and the prior two years, the amount of taxes paid in available carry-back years, the forecasts of future income, applicable tax planning strategies, and assessments of current and future economic and business conditions. This analysis is updated quarterly and adjusted as necessary. Based on the analysis, the Company has determined that a valuation allowance for deferred tax assets was not required as of December 31, 2022 and 2021. A summary of the Company’s net operating loss carry-forwards as of December 31, 2022 and 2021 is as follows: Federal State Remaining Expires Annual Remaining Expires Annual (Dollars in thousands) 2022 Saehan Bank (acquired by Wilshire) $ 1,809 2030 $ 226 $ 2,261 2032 $ 226 Pacific International Bank 3,989 2032 420 — N/A — Total $ 5,798 $ 646 $ 2,261 $ 226 2021 Saehan Bank (acquired by Wilshire) $ 2,035 2030 $ 226 $ 2,488 2032 $ — Pacific International Bank 4,409 2032 420 — N/A — Total $ 6,444 $ 646 $ 2,488 $ — In 2020, the California Assembly Bill 85 (A.B. 85) was signed into law. A.B. 85 suspends the use of the net operating loss (“NOL”) for the 2020, 2021, and 2022 tax years. For NOL incurred in tax years before 2020 for which a deduction is denied, the carryover period is extended by three years. On February 9, 2022, Senate Bill 113 (“S.B. 113”) was signed into law, and among other changes, S.B. reinstates the California NOL deductions for tax years beginning in 2022, in effect shortening the suspension period for NOL deductions from A.B. 85 by one year. The Company and its subsidiaries are subject to U.S. federal income tax as well as income tax of the state of California and various other states. The statute of limitations for the assessment of taxes for the consolidated Federal income tax return is closed for all tax years up to and including 2018. The expiration of the statute of limitations for the assessment of taxes for the various state income and franchise tax returns for the Company and subsidiaries varies by state. The Company is currently under examination by the New York City Department of Finance for the 2016, 2017 and 2018 tax years. While the outcome of the examination is unknown, the Company expects no material adjustments. A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2022 and 2021 is as follows: Year Ended December 31, 2022 2021 (Dollars in thousands) Balance at January 1, $ 3,278 $ 2,750 Additions based on tax positions related to prior years 434 528 Expiration of statute of limitations (761) — Balance at December 31, $ 2,951 $ 3,278 The total amount of unrecognized tax benefits was $3.0 million at December 31, 2022 and $3.3 million at December 31, 2021. The total amount of tax benefits, if recognized, would favorably impact the effective tax rate by $2.6 million and $2.9 million at December 31, 2022 and 2021, respectively. The Company expects the total amount of unrecognized tax benefits to decrease by approximately $1.2 million within the next twelve months due to an anticipated settlement with a state tax authority and the expiration of statute of limitations. The Company recognizes interest and penalties related to income tax matters in income tax expense. The Company had approximately $359 thousand and $387 thousand accrued for interest expense at December 31, 2022 and 2021, respectively and no amount accrued for penalties.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION In 2019, the Company’s stockholders approved the 2019 stock-based incentive plan (the “2019 Plan”), which provides for grants of stock options, stock appreciation rights (“SAR”), restricted stock, performance shares, and performance units to non-employee directors, employees, and potentially consultants of the Company. Stock options may be either incentive stock options (“ISOs”), as defined in Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”), or nonqualified stock options (“NQSOs”). The 2019 Plan provides the Company flexibility to (i) attract and retain qualified non-employee directors, executives, other key employees, and potentially consultants with appropriate equity-based awards to; (ii) motivate high levels of performance; (iii) recognize employee and potentially consultants’ contributions to the Company’s success; and (iv) align the interests of the participants with those of the Company’s stockholders. The 2019 Plan initially had 4,400,000 shares that were available for grant to participants. The exercise price for shares under an ISO may not be less than 100% of fair market value on the date the award is granted under the Code. Similarly, under the terms of the 2019 Plan, the exercise price for SARs and NQSOs may not be less than 100% of fair market value on the date of grant. Performance units are awarded to participants at the market price of the Company’s common stock on the date of award (after the lapse of the restriction period and the attainment of the performance criteria). All options not exercised generally expire 10 years after the date of grant. ISOs, SARs, and NQSOs have vesting periods of three Under the 2019 Plan, 1,443,000 shares were available for future grants as of December 31, 2022. With the exception of the shares underlying stock options and restricted stock awards, the Board of Directors may choose to settle the awards by paying the equivalent cash value or by delivering the appropriate number of shares. The following is a summary of the Company’s stock option activity for the year ended December 31, 2022: Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Aggregate Intrinsic Value Outstanding - January 1, 2022 814,877 $ 15.17 Granted — — Exercised (105,510) 5.02 Expired (60,000) 17.18 Forfeited — — Outstanding - December 31, 2022 649,367 $ 16.63 2.92 $ — Options exercisable - December 31, 2022 649,367 $ 16.63 2.92 $ — The following is a summary of the Company’s restricted stock and performance unit activity for the year ended December 31, 2022: Number of Shares Weighted-Average Grant Date Fair Value Outstanding (unvested) - January 1, 2022 1,561,197 $ 12.08 Granted 1,007,942 15.85 Vested (634,514) 12.65 Forfeited (174,252) 13.55 Outstanding (unvested) - December 31, 2022 1,760,373 $ 13.89 The total fair value of restricted stock and performance units vested for the years ended December 31, 2022, 2021, and 2020 was $9.7 million, $9.5 million, and $3.3 million, respectively. The amount charged against income related to stock based payment arrangements was $12.3 million, $8.4 million, and $8.1 million for the years ended December 31, 2022, 2021, and 2020, respectively. At December 31, 2022, unrecognized compensation expense related to non-vested stock option grants, restricted stock award, performance share units and long term incentive plan totaled $27.3 million and is expected to be recognized over a remaining weighted average vesting period of 1.7 years. The estimated annual stock-based compensation expense as of December 31, 2022 for each of the succeeding years is indicated in the table below: Stock Based (Dollars in thousands) For the year ending December 31: 2023 $ 13,654 2024 9,796 2025 3,510 2026 343 2027 — Total $ 27,303 The Company maintained the Hope Employee Stock Purchase Plan (“ESPP”), which allowed eligible employees to purchase the Company’s common shares through payroll deductions which build up between the offering date and the purchase date. At the purchase date, the Company used the accumulated funds to purchase shares of the Company’s common stock on behalf of the participating employees at a 10% discount to the closing price of the Company’s common shares. The closing price is the lower of either the closing price on the first day of the offering period or the closing price on the purchase date. The dollar amount of common shares purchased under the ESPP must not exceed 20% of the participating employee’s base salary, subject to a cap of $25 thousand in stock value based on the grant date. The ESPP was considered compensatory under GAAP and compensation expense for the ESPP was recognized as part of the Company’s stock-based compensation expense. The compensation expense for ESPP for the years ended December 31, 2022, 2021, and 2020, was $284 thousand, $431 thousand, and $250 thousand, respectively. The Company discontinued the ESPP program in July 2022.

Compensation Related Costs, Ret

Compensation Related Costs, Retirement Benefits	12 Months Ended
	Dec. 31, 2022
Retirement Benefits [Abstract]
Retirement Benefits	EMPLOYEE BENEFIT PLANS Deferred Compensation Plan - The Company established a deferred compensation plan that permits eligible officers, key executives, and directors to defer a portion of their compensation. The deferred compensation plan is still in effect and was amended in 2007 to be in compliance with IRC §409(A) regulations. The deferred compensation, together with accrued accumulated interest, is distributable in cash after retirement or termination of service. The deferred compensation liabilities at December 31, 2022 and 2021 amounted to $482 thousand and $593 thousand, respectively, and were included in other liabilities in the Consolidated Statements of Financial Condition. Interest expense recognized under the deferred compensation plan totaled $2 thousand, $5 thousand, and $9 thousand for 2022, 2021, and 2020, respectively. The Company established and the Board approved a Long Term Incentive Plan (“LTIP”) that rewards certain executive officers with deferred compensation if the Company meets certain performance goals, the NEOs meet individual performance goals, and the NEOs remain employed for a pre-determined period (between five 401(k) Savings Plan - The Company established a 401(k) savings plan, which is open to all eligible employees who are 21 years old or over and have completed 3 months of service. The Company matches 75% of the first 8% of the employee’s compensation contributed. Employer matching is vested 25% after 2 years of service, 50% after 3 years of service, 75% after 4 years of service, and 100% after 5 or more years of service. Total employer contributions to the plan amounted to approximately $5.9 million, $5.8 million, and $5.4 million for 2022, 2021, and 2020, respectively. Post-Retirement Benefit Plans - The Company purchased life insurance policies and entered into split dollar life insurance agreements with certain directors and officers. Under the terms of the split dollar life insurance agreements, a portion of the death benefits received by the Company will be paid to beneficiaries named by the directors and officers. Total death benefits received by the Company was $1.2 million, $1.3 million, and $1.0 million, for 2022, 2021, and 2020, respectively. In 2016, the Company assumed Wilshire Bank’s Survivor Income Plans which was originally adopted in 2003 and 2005 for the benefit of the directors and officers in order to encourage their continued employment and service, and to reward them for their past contributions. Wilshire Bank had also entered into separate Survivor Income Agreements with officers and directors relating to the Survivor Income Plan. Under the terms of the Survivor Income Plan, each participant is entitled to a base amount of death proceeds as set forth in the participant’s election to participate, which base amount increases three percent per calendar year, but only until normal retirement age, which is 65. If the participant remains employed after age 65, the death benefit will be fixed at the amount determined at age 65. If a participant has attained age 65 prior to becoming a participant in the Survivor Income Plan, the death benefit shall be equal to the base amount set forth in their election to participate with no increases. The Company is obligated to pay any death benefit owed under the Survivor Income Plan in a lump sum within 90 days following the participant’s death. In 2011, the Company assumed Center Bank’s Survivor Income Plan which was adopted in 2004 for the benefit of the directors and officers of the bank in order to encourage their continued employment and service, and to reward them for their past contributions. Under the terms of the Survivor Income Plan, each participant is entitled to a base amount of death proceeds as set forth in the participant’s election to participate. The Company is obligated to pay any death benefit owed under the Survivor Income Plan in a lump sum within 90 days following the participant’s death. The participant’s rights under the Survivor Income Plans terminate upon termination of employment. Upon termination of employment (except for termination for cause), if the participant has achieved the vesting requirements outlined in the plan, the participant will have the option to convert the amount of death benefits calculated at such termination to a split dollar arrangement, provided such arrangement is available under bank regulations and/or tax laws. If available, the Company and the participant will enter into a split dollar agreement and a split dollar policy endorsement. Under such an arrangement, the Company would annually impute income to the officer or the director based on tax laws or rules in force upon conversion. The Company’s accumulated post-retirement benefit obligation at December 31, 2022, 2021, and 2020 was $6.8 million, $8.6 million, and $9.0 million, respectively.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Legal Contingencies In the normal course of business, the Company is involved in various legal claims. The Company has reviewed all legal claims against the Company with counsel for the year ended December 31, 2022 and has taken into consideration the views of such counsel as to the potential outcome of the claims. Loss contingencies for all legal claims totaled $229 thousand and $52 thousand at December 31, 2022 and 2021, respectively. It is reasonably possible that the Company may incur losses in excess of the amounts currently accrued. However, at this time, the Company is unable to estimate the range of additional losses that are reasonably possible because of a number of factors, including the fact that certain of these litigation matters are still in their early stages and involve claims that the Company believes has little to no merit. The Company has considered these and other possible loss contingencies and does not expect the amounts to be material to the consolidated financial statements. Unfunded Commitments and Letters of Credit In the normal course of business, the Company is a party to financial instruments with off-balance sheet risk that are used to meet the financing needs of customers. These financial instruments include commitments to extend credit, standby letters of credit, commercial letters of credit, and commitments to fund investments in affordable housing partnerships. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the Consolidated Statements of Financial Condition. The Company’s exposure to credit loss in the event of nonperformance on commitments to extend credit and standby letters of credit is represented by the contractual notional amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as the Company does for extending loan facilities to customers. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary upon extension of credit, is based on the Company’s credit evaluation of the counterparty. The types of collateral that the Company may hold can vary and may include accounts receivable, inventory, property, plant and equipment, and income-producing properties. Commitments at December 31, 2022 and 2021 are summarized as follows: December 31, 2022 2021 (Dollars in thousands) Commitments to extend credit $ 2,856,263 $ 2,329,421 Standby letters of credit 132,538 126,137 Other letters of credit 22,376 56,333 Commitments to fund investments in affordable housing partnerships 11,792 9,514 Commitments and letters of credit generally have variable rates that are tied to the prime rate. The amount of fixed rate commitments is not considered material to this presentation. From time to time, the Company enters into certain types of contracts that contingently require the Company to indemnify parties against third party claims and other obligations customarily indemnified in the ordinary course of the Company’s business. The terms of such obligations vary, and, generally, a maximum obligation is not explicitly stated. Therefore, the overall maximum amount of the obligations cannot be reasonably estimated. The most significant of these contracts relate to certain agreements with the Company’s officers and directors under which the Company may be required to indemnify such persons for liabilities arising out of their employment relationship. Historically, the Company has not been obligated to make significant payments for these obligations, and no liabilities have been recorded for these obligations in its consolidated statements of financial condition as of December 31, 2022 and 2021. The Company maintains an ACL for its off-balance sheet loan commitments which is calculated by loan type using estimated line utilization rates based on historical usage. Loss rates for outstanding loans is applied to the estimated utilization rates to calculate the ACL for off-balance sheet loan commitments. At December 31, 2022 and 2021, ACL for off-balance sheet loan commitments totaled $1.4 million and $1.1 million, respectively.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Fair value is defined as the exchange price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date reflecting assumptions that a market participant would use when pricing an asset or liability. There are three levels of inputs that may be used to measure fair value. The fair value inputs of the instruments are classified and disclosed in one of the following categories pursuant to ASC 820: Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. The quoted price shall not be adjusted for any blockage factor (i.e., size of the position relative to trading volume). Level 2 - Pricing inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Fair value is determined through the use of models or other valuation methodologies, including the use of pricing matrices. If the asset or liability has a specified (contractual) term, a Level 2 input must be observable for substantially the full term of the asset or liability. Level 3 - Pricing inputs are unobservable for the asset or liability. Unobservable inputs are used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the measurement date. The inputs into the determination of fair value require significant management judgment or estimation. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an asset’s or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. The Company uses the following methods and assumptions in estimating fair value disclosures for financial instruments. Financial assets and liabilities recorded at fair value on a recurring and non-recurring basis are listed as follows: Investment Securities The fair values of investment securities available for sale and held to maturity are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). The fair value of the Company’s Level 3 security available for sale was measured using an income approach valuation technique. The primary inputs and assumptions used in the fair value measurement was derived from the security’s underlying collateral, which included discount rate, prepayment speeds, payment delays, and an assessment of the risk of default of the underlying collateral, among other factors. Significant increases or decreases in any of the inputs or assumptions could result in a significant increase or decrease in the fair value measurement. Equity Investments With Readily Determinable Fair Value The fair value of the Company’s equity investments with readily determinable fair value is comprised of mutual funds. The fair value for these investments is obtained from unadjusted quoted prices in active markets on the date of measurement and is therefore classified as Level 1. Interest Rate Swaps The Company offers interest rate swaps to certain loan customers to allow them to hedge the risk of rising interest rates on their variable rate loans. The Company originates a variable rate loan and enters into a variable-to-fixed interest rate swap with the customer. The Company also enters into an offsetting swap with a correspondent bank. These back-to-back agreements are intended to offset each other and allow the Company to originate a variable rate loan, while providing a contract for fixed interest payments for the customer. The net cash flow for the Company is equal to the interest income received from a variable rate loan originated with the customer. The fair value of these derivatives is based on a discounted cash flow approach. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of interest rate swaps is classified as Level 2. Mortgage Banking Derivatives Mortgage banking derivative instruments consist of interest rate lock commitments and forward sale contracts that trade in liquid markets. The fair value is based on the prices available from third party investors. Due to the observable nature of the inputs used in deriving the fair value, the valuation of mortgage banking derivatives is classified as Level 2. Other Derivatives Other derivatives consist of interest rate swaps and collars designated as cash flow hedges, foreign exchange contracts and risk participation agreements. The fair values of these other derivative financial instruments are based upon the estimated amount the Company would receive or pay to terminate the instruments, taking into account current interest rates, foreign exchange rates and, when appropriate, the current credit worthiness of the counterparties. Interest rate swaps designated as cash flow hedges and foreign exchange contracts are classified within Level 2 due to the observable nature of the inputs used in deriving the fair value of these contracts. Credit derivatives such as risk participation agreements are valued based on credit worthiness of the underlying borrower which is a significant unobservable input and therefore is classified as Level 3. Collateral Dependent Loans The fair values of collateral dependent loans are generally measured for ACL using the practical expedients permitted by ASC 326-20-35-5 including collateral dependent loans measured at an observable market price (if available), or at the fair value of the loan’s collateral (if the loan is collateral dependent). Fair value of the loan’s collateral, when the loan is dependent on collateral, is determined by appraisals or independent valuation, less costs to sell of 8.5%. Appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and income approach. Adjustment may be made in the appraisal process by the independent appraiser to adjust for differences between the comparable sales and income data available for similar loans and the underlying collateral. For commercial and industrial and asset backed loans, independent valuations may include a 20-60% discount for eligible accounts receivable and a 50-70% discount for inventory. These result in a Level 3 classification. OREO OREO is fair valued at the time the loan is foreclosed upon and the asset is transferred to OREO. The value is based primarily on third party appraisals, less costs to sell of up to 8.5% and result in a Level 3 classification of the inputs for determining fair value. OREO is reviewed and evaluated on at least a quarterly basis for additional impairment and adjusted to lower of cost or market accordingly, based on the same factors identified above. Loans Held For Sale Loans held for sale are carried at the lower of cost or fair value, as determined by outstanding commitments from investors, or based on recent comparable sales (Level 2 inputs), if available, and if not available, are based on discounted cash flows using current market rates applied to the estimated life and credit risk (Level 3 inputs) or may be assessed based upon the fair value of the collateral, which is obtained from recent real estate appraisals (Level 3 inputs). These appraisals may utilize a single valuation approach or a combination of approaches including the income approach. Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are typically significant and result in a Level 3 classification of the inputs for determining fair value. Assets and liabilities measured at fair value on a recurring basis are summarized below: Fair Value Measurements at the End of December 31, 2022 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Assets: Investment securities available for sale: U.S. Treasury securities $ 3,886 $ 3,886 $ — $ — U.S. Government agency and U.S. Government sponsored enterprises: Agency securities 3,867 — 3,867 — Collateralized mortgage obligations 793,699 — 793,699 — Mortgage-backed securities: Residential 453,177 — 453,177 — Commercial 368,287 — 368,287 — Asset-backed securities 147,604 — 147,604 — Corporate securities 18,857 — 18,857 — Municipal securities 182,752 — 181,809 943 Equity investments with readily determinable fair value 4,303 4,303 — — Interest rate swaps 73,389 — 73,389 — Mortgage banking derivatives 29 — 29 — Other derivatives 25,462 — 25,462 — Liabilities: Interest rate swaps 73,389 — 73,389 — Mortgage banking derivatives 23 — 23 — Other derivatives 2,160 — 2,128 32 Fair Value Measurements at the End of December 31, 2021 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Assets: Investment securities available for sale: U.S. Government agency and U.S. Government sponsored enterprises: Collateralized mortgage obligations $ 1,026,430 $ — $ 1,026,430 $ — Mortgage-backed securities: Residential 759,224 — 759,224 — Commercial 599,402 — 599,402 — Asset-backed securities 153,451 — 153,451 — Corporate securities 22,484 — 22,484 — Municipal securities 105,284 — 104,246 1,038 Equity investments with readily determinable fair value 26,823 26,823 — — Interest rate swaps 17,907 — 17,907 — Mortgage banking derivatives 247 — 247 — Other derivatives 2,291 — 2,291 — Liabilities: Interest rate swaps 17,907 — 17,907 — Mortgage banking derivatives 76 — 76 — Other derivatives 93 — — 93 There were no transfers between Levels 1, 2, and 3 during the year ended December 31, 2022 and 2021. The table below presents a reconciliation and income statement classification of gains (losses) for the municipal security and risk participation agreements measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the year ended December 31, 2022 and 2021: Year Ended December 31, 2022 2021 (Dollars in thousands) Municipal securities: Beginning Balance $ 1,038 $ 1,022 Change in fair value included in other comprehensive (loss) income (95) 16 Ending Balance $ 943 $ 1,038 Risk participation agreements: Beginning Balance $ 93 $ 398 Change in fair value included in expense (61) (305) Ending Balance $ 32 $ 93 The Company measures certain assets at fair value on a non-recurring basis including collateral dependent loans, loans held for sale, and OREO. These fair value adjustments result from individually evaluated ACL recognized during the period, application of the lower of cost or fair value on loans held for sale, and the application of fair value less cost to sell on OREO. Assets measured at fair value on a non-recurring basis at December 31, 2022 and 2021 are summarized below: Fair Value Measurements at the End of December 31, 2022 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Assets: Collateral dependent loans at fair value: Real estate loans $ 807 $ — $ — $ 807 Commercial business 2,744 — — 2,744 Loans held for sale, net 48,795 — 48,795 — OREO 1,050 — — 1,050 Fair Value Measurements at the End of December 31, 2021 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Assets: Collateral dependent loans at fair value: Real estate loans $ 12,293 $ — $ — $ 12,293 Commercial business 3,656 — — 3,656 Loans held for sale, net 26,154 — 26,154 — OREO 2,167 — — 2,167 For assets measured at fair value on a non-recurring basis, the total net losses, which include charge offs, recoveries, recorded ACL, valuations, and recognized gains and losses on sales in 2022 and 2021 are summarized below: Year Ended December 31, 2022 2021 (Dollars in thousands) Assets: Collateral dependent loans at fair value: Real estate loans $ (727) $ (1,758) Commercial business (2,526) (2,088) Loans held for sale, net (3,989) (21,074) OREO (941) (1,275) Fair Value of Financial Instruments Carrying amounts and estimated fair values of financial instruments, not previously presented, at December 31, 2022 and 2021 were as follows: December 31, 2022 Carrying Amount Estimated Fair Value Fair Value Measurement Using (Dollars in thousands) Financial Assets: Cash and cash equivalents $ 506,776 $ 506,776 Level 1 Interest bearing deposits in other financial institutions 735 733 Level 2 Investment securities held to maturity 271,066 258,407 Level 2 Equity investments without readily determinable fair values 38,093 38,093 Level 2 Loans held for sale 49,245 49,248 Level 2 Loans receivable, net 15,241,181 14,745,881 Level 3 Accrued interest receivable 55,460 55,460 Level 2/3 Servicing assets, net 11,628 17,375 Level 3 Customers’ liabilities on acceptances 818 818 Level 2 Financial Liabilities: Noninterest bearing deposits $ 4,849,493 $ 4,849,493 Level 2 Saving and other interest bearing demand deposits 5,899,248 5,899,248 Level 2 Time deposits 4,990,060 5,020,093 Level 2 FHLB and FRB borrowings 865,000 867,088 Level 2 Convertible notes, net 217,148 213,937 Level 1 Subordinated debentures 106,565 107,944 Level 2 Accrued interest payable 26,668 26,668 Level 2 Acceptances outstanding 818 818 Level 2 December 31, 2021 Carrying Amount Estimated Fair Value Fair Value Measurement Using (Dollars in thousands) Financial Assets: Cash and cash equivalents $ 316,266 $ 316,266 Level 1 Interest bearing deposits in other financial institutions 12,851 12,853 Level 2 Equity investments without readily determinable fair values 31,037 31,037 Level 2 Loans held for sale 99,049 103,767 Level 2 Loans receivable, net 13,812,193 13,698,579 Level 3 Accrued interest receivable 41,842 41,842 Level 2/3 Servicing assets, net 10,418 13,500 Level 3 Customers’ liabilities on acceptances 1,521 1,521 Level 2 Financial Liabilities: Noninterest bearing deposits $ 5,751,870 $ 5,751,870 Level 2 Saving and other interest bearing demand deposits 6,500,227 6,500,227 Level 2 Time deposits 2,788,353 2,790,596 Level 2 FHLB advances 300,000 301,936 Level 2 Convertible notes, net 216,209 214,612 Level 1 Subordinated debentures 105,354 117,961 Level 2 Accrued interest payable 4,272 4,272 Level 2 Acceptances outstanding 1,521 1,521 Level 2 The Company measures assets and liabilities for its fair value disclosures based on an exit price notion. Although the exit price notion represents the value that would be received to sell an asset or paid to transfer a liability, the actual price received for a sale of assets or paid to transfer liabilities could be different from exit price disclosed. The methods and assumptions used to estimate fair value are described as follows: The carrying amount is the estimated fair value for cash and cash equivalents, savings and other interest bearing demand deposits, equity investments without readily determinable fair values, customer’s and Bank’s liabilities on acceptances, noninterest bearing deposits, short-term debt, secured borrowings and variable rate loans or deposits that reprice frequently and fully. The fair value of loans is determined through a discounted cash flow analysis which incorporates probability of default and loss given default rates on an individual loan basis. The discount rate is based on the LIBOR Swap Rate for fixed rate loans, while variable loans start with the corresponding index rate and an adjustment was made on certain loans which considered factors such as servicing costs, capital charges, duration, asset type incremental costs, and use of projected cash flows. Residential real estate loans fair values include Fannie Mae and Freddie Mac prepayment speed assumptions or a third party index based on historical prepayment speeds. Fair value of time deposits is based on discounted cash flow analysis using recent issuance rates over the prior three months and a market rate analysis of recent offering rates for retail products. Wholesale time deposit fair values incorporate brokered time deposit offering rates. The fair value of the Company’s debt is based on current rates for similar financing. Fair value for the Company’s convertible notes is based on the actual last traded price of the notes. The fair value of commitments to fund loans represents fees currently charged to enter into similar agreements with similar remaining maturities and is not presented herein. The fair value of these financial instruments is not material to the consolidated financial statements.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	DERIVATIVE FINANCIAL INSTRUMENTS As part of our overall interest rate risk management, the Company enters into derivative instruments, including interest rate swaps, collars, caps, floors, foreign exchange contracts, risk participation agreements and mortgage banking derivatives. The notional amount does not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amount and the other terms of the individual agreements. Derivative instruments are recognized on the balance sheet at their fair value and are not reported on a net basis. The table below presents the fair value of the Company’s derivative financial instruments as of December 31, 2022 and 2021. The Company’s derivative assets and derivative liabilities are located within Other assets and Other liabilities, respectively, on the Company’s Consolidated Balance Sheets. December 31, 2022 Notional Fair Value Other Assets Other Liabilities (Dollars in thousands) Derivatives designated as cash flow hedges Interest rate swaps $ 614,000 $ 19,773 $ 1,227 Forward interest rate swaps 111,000 5,428 — Forward interest rate collars 500,000 182 828 Total $ 1,225,000 $ 25,383 $ 2,055 Derivatives not designated as hedges Interest rate swaps with correspondent banks $ 1,013,407 $ 73,059 $ 330 Interest rate swaps with customers 1,013,407 330 73,059 Foreign exchange contracts with correspondent banks 2,359 79 — Foreign exchange contracts with customers 2,359 — 73 Risk participation agreement 134,282 — 32 Mortgage banking derivatives 2,801 29 23 Total $ 2,168,615 $ 73,497 $ 73,517 December 31, 2021 Notional Fair Value Other Assets Other Liabilities (Dollars in thousands) Derivatives designated as cash flow hedges Interest rate swaps $ 100,000 $ 2,291 $ — Total $ 100,000 $ 2,291 $ — Derivatives not designated as hedges Interest rate swaps with correspondent banks $ 588,685 $ 3,001 $ 14,906 Interest rate swaps with customers 588,685 14,906 3,001 Risk participation agreement 123,927 — 93 Mortgage banking derivatives 17,425 247 76 Total $ 1,318,722 $ 18,154 $ 18,076 Derivatives designated as cash flow hedges The Company had 17 interest rate agreements as of December 31, 2022 with a total notional amount of $1.23 billion designated as cash flow hedges of liabilities tied to LIBOR and Federal Funds. The designated hedged interest rate swap agreements consisted of 13 non-forward starting interest rate swap with notional amount of $614.0 million with weighted average term of 4.1 years, two forward starting interest rate swap with notional amount of $111.0 million with weighted average term of 3.9 years, and two forward starting interest rate options with dealers (collars) with notional amount of $500.0 million with average weighted term of 3.0 years. The Company had one interest rate swap agreement as of December 31, 2021 with a notional amount of $100.0 million designated as cash flow hedges of certain LIBOR-based debt with weighted average term of 3.3 years. The Company’s swaps were determined to be fully effective during the periods presented. The aggregate fair value of the swaps are recorded in assets or liabilities with changes in fair value recorded in other comprehensive income. The gain or loss on derivatives is recorded in AOCI and is subsequently reclassified into interest income and interest expense in the period during which the hedged forecasted transaction affects earnings. Amounts reported in AOCI related to interest rate swap derivatives will be reclassified to interest income and interest expense as interest payments are received or paid on the Company’s derivatives. The Company expects the hedges to remain fully effective throughout the remaining terms. The Company expects to reclassify approximately $14.3 million from AOCI as a decrease to interest expense during the next 12 months. For the year ended December 31, 2022, the Company reclassified $2.0 million from accumulated other comprehensive income to interest income and expense. For the year ended December 31, 2021, the Company reclassified $319 thousand from accumulated other comprehensive income to interest expense. Total cash held as collateral for interest rate swaps was $3.1 million at December 31, 2022 and $37.1 million at December 31, 2021. Derivatives not designated as hedges The Company’s derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers. The Company offers a loan hedging program to certain loan customers. Through this program, the Company originates a variable rate loan with the customer. The Company and the customer will then enter into a fixed interest rate swap. Lastly, an identical offsetting swap is entered into by the Company with a correspondent bank. These “back-to-back” swap arrangements are intended to offset each other and allow the Company to book a variable rate loan, while providing the customer with a contract for fixed interest payments. In these arrangements, the Company’s net cash flow is equal to the interest income received from the variable rate loan originated with the customer. These customer swaps are not designated as hedging instruments and are recorded at fair value in other assets and other liabilities. The change in fair value is recognized in the income statement as other income and fees. The Company is required to hold cash as collateral for the swaps, which is recorded in other assets on the consolidated statement of financial condition. Total cash held as collateral for back to back swaps was $9.1 million at December 31, 2022 and $9.4 million at December 31, 2021. The Company offers foreign exchange contracts to customers to purchase and/or sell foreign currencies at set rates in the future. The foreign exchange contracts allow customers to hedge the foreign exchange rate risk of their deposits and loans denominated in foreign currencies. In conjunction with this, the Company also enters into offsetting back-to-back contracts with institutional counterparties to hedge our foreign exchange rate risk. These back-to-back contracts are intended to offset each other and allow us to offer our customers foreign exchange products. These foreign exchange contracts are not designated as hedging instruments and are recorded at fair value in other assets and other liabilities. During the years ended December 31, 2022 and 2021, the changes in fair value on foreign exchange contracts were gains of $6 thousand and $0, respectively, and were recognized in the income statement as other income and fees. At December 31, 2022, the Company had risk participation agreements with an outside counterparty for an interest rate swap related to a loan in which it is a participant. The risk participation agreement provides credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract. Risk participation agreements are credit derivatives not designated as hedges. Credit derivatives are not speculative and are not used to manage interest rate risk in assets or liabilities. Changes in the fair value in credit derivatives are recognized directly in earnings. The fee received, less the estimate of the loss for credit exposure, was recognized in earnings at the time of the transaction. At December 31, 2022, the notional amount of the risk participation agreements sold was $134.3 million with a credit valuation adjustment of $32 thousand. At December 31, 2021, the notional amount of the risk participation agreements sold was $123.9 million with a credit valuation adjustment of $93 thousand. The Company enters into various stand-alone mortgage-banking derivatives in order to hedge the risk associated with the fluctuation of interest rates. Changes in fair value are recorded as mortgage banking revenue. Residential mortgage loans funded with interest rate lock commitments and forward commitments for the future delivery of mortgage loans to third party investors are considered derivatives. At December 31, 2022, the Company had approximately $2.8 million in interest rate lock commitments and total forward sales commitments for the future delivery of residential mortgage loans. At December 31, 2021, the Company had approximately $17.4 million in interest rate lock commitments and total forward sales commitments for the future delivery of residential mortgage loans.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Stockholders’ Equity	STOCKHOLDERS’ EQUITY Total stockholders’ equity at December 31, 2022 was $2.02 billion, compared to $2.09 billion at December 31, 2021. The decrease in stockholders’ equity was due primarily to a decrease in accumulated other comprehensive income, a decrease from cash dividends paid, and an increase in treasury stock from shares repurchased during 2022, offset partially by the increase in retained earnings from income earned during the year. In July 2021, the Company’s Board of Directors approved a share repurchase program that authorizes the Company to repurchase $50.0 million of its common stock. In 2021, the Company completed the repurchase plan through the repurchase of 3,682,268 shares of common stock totaling $50.0 million. In January 2022, the Company’s Board of Directors approved another share repurchase program that authorizes the Company to repurchase up to an additional $50.0 million of its common stock. During the year ended December 31, 2022, the Company repurchased 1,038,986 shares of common stock totaling $14.7 million as part of this program. Repurchased shares were recorded as treasury stock and reduced the total number of common stock outstanding. Dividends The Company’s Board of Directors approved and the Company paid quarterly dividends of $0.14 per common share in each quarter of 2022 and 2021. The Company paid aggregate dividends of $67.1 million and $68.7 million to common stockholders in 2022 and 2021, respectively. Accumulated Other Comprehensive Income (Loss) The following table presents the changes to accumulated other comprehensive income for the years ended December 31, 2022, 2021, and 2020: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Balance at beginning of period $ (11,412) $ 32,753 $ 9,149 Unrealized net (losses) gains on securities available for sale (297,919) (65,551) 41,562 Unrealized net losses on securities available for sale transferred to held to maturity (36,576) — — Unrealized net gains (losses) on interest rate swaps used for cash flow hedge 23,062 2,893 (602) Reclassification adjustments for net losses (gains) realized in net income 253 319 (7,583) Tax effect 91,735 18,174 (9,773) Other comprehensive (loss) income, net of tax (219,445) (44,165) 23,604 Balance at end of period $ (230,857) $ (11,412) $ 32,753 Reclassifications for net gains and losses realized in net income for the years ended December 31, 2022, 2021, and 2020 relate to net gains on interest rate swaps used for cash flow hedges and amortization on unrealized loss from transferred investment securities to HTM. Gains and losses on interest rate swaps are recorded in noninterest income under other income and fees in the Consolidated Statements of Income. The unrealized holding loss at the date of transfer on securities held to maturity will continue to be reported, net of taxes, in accumulated other comprehensive income (“AOCI”) as a component of stockholders’ equity, and amortized over the remaining life of the securities as an adjustment of yield, offsetting the impact on yield of the corresponding discount amortization. For the year ended December 31, 2022, the Company reclassified $2.0 million from other comprehensive income to gains from cash flow hedge relationships. For the year ended December 31, 2021, the Company reclassified $319 thousand from other comprehensive income to losses from cash flow hedge relationships. For the year ended December 31, 2020, the Company reclassified $7.6 million from other comprehensive income to reflect the gain on sale and calls of securities, and related to the interest swap designated as a cash flow hedge. For the year ended December 31, 2022, the Company recorded reclassification adjustments as a reduction to interest income of $2.3 million from other comprehensive losses to amortize transferred unrealized losses to investment securities HTM, compared to zero for the same periods in 2021 and 2020.

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2022
Banking Regulation [Abstract]
Regulatory Matters	REGULATORY MATTERS The Company and the Bank are subject to various regulatory capital requirements administered by the federal and state banking agencies. Failure to meet minimum capital requirements can result in certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a material and adverse effect on the Company’s and the Bank’s business, financial condition and results of operation, such as restrictions on growth or the payment of dividends or other capital distributions or management fees. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of their assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. In July 2013, the federal bank regulatory agencies adopted final regulations, which revised their risk-based and leverage capital requirements for banking organizations to meet requirements of the Dodd-Frank Act and to implement the Basel III international agreements reached by the Basel Committee. The final rules became effective for the Company and the Bank on January 1, 2015 and were subject to a phase-in period through January 1, 2019. The final rules that had an impact on the Company and the Bank include: • An increase in the minimum Tier 1 capital ratio from 4.00% to 6.00% of risk-weighted assets; • A new category and a required 4.50% of risk-weighted assets ratio was established for “Common Equity Tier 1” as a subset of Tier 1 capital limited to common equity; • A minimum non-risk-based leverage ratio was set at 4.00%, eliminating a 3.00% exception for higher rated banks; • Changes in the permitted composition of Tier 1 capital to exclude trust preferred securities, mortgage servicing rights and certain deferred tax assets and include unrealized gains and losses on available for sale debt and equity securities; • The risk-weights of certain assets for purposes of calculating the risk-based capital ratios are changed for high volatility commercial real estate acquisition, development and construction loans, certain past due non-residential mortgage loans and certain mortgage-backed and other securities exposures; and • A capital conservation buffer of 2.5% of risk weighted assets over each of the required capital ratios was added and must be met to avoid limitations on the ability of the B ank to pay dividends, repurchase shares, or pay discretionary bonuses. As of December 31, 2022, the ratios for the Company and the Bank were sufficient to meet the fully phased-in conservation buffer. On January 1, 2020, the Company adopted ASU 2016-13 and implemented the CECL methodology. In response to the COVID-19 pandemic, federal regulatory agencies published a final rule that provides the option to delay the cumulative effect of the day 1 impact of CECL adoption on regulatory capital, along with 25% of the change in the adjusted allowance for credit losses (as computed for regulatory capital purposes which excludes purchased credit deteriorated (“PCD”) loans), for two years, followed by a three-year phase-in period. The Company has elected the five-year transition period consistent with the final rule issued by the federal regulatory agencies. As of December 31, 2022 and 2021, the most recent regulatory notification categorized the Bank as “well-capitalized” under the regulatory framework for prompt corrective action. To generally be categorized as “well-capitalized”, the Bank must maintain minimum total risk-based, Tier 1 risk-based, common equity Tier 1, and Tier 1 leverage ratios as set forth in the following table. There are no conditions or events since the most recent notification from regulators that management believes has changed the institution’s category. The Company’s and the Bank’s capital levels and regulatory ratios are presented in the tables below for the dates indicated and include the effects of the Company’s election to utilize the five-year transition described above: Actual Required For Capital Adequacy Purposes Minimum Capital Adequacy Required To Be Well Capitalized December 31, 2022 Amount Ratio Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) Common equity Tier 1 capital Company $ 1,799,020 10.55 % $ 767,223 4.50 % $ 1,193,459 7.00 % N/A N/A Bank $ 2,049,973 12.03 % $ 766,971 4.50 % $ 1,193,066 7.00 % $ 1,107,847 6.50 % Total capital Company $ 2,041,319 11.97 % $ 1,363,953 8.00 % $ 1,790,188 10.50 % N/A N/A Bank $ 2,189,607 12.85 % $ 1,363,504 8.00 % $ 1,789,598 10.50 % $ 1,704,380 10.00 % Tier 1 capital Company $ 1,901,685 11.15 % $ 1,022,965 6.00 % $ 1,449,200 8.50 % N/A N/A Bank $ 2,049,973 12.03 % $ 1,022,628 6.00 % $ 1,448,723 8.50 % $ 1,363,504 8.00 % Tier 1 capital Company $ 1,901,685 10.15 % $ 749,743 4.00 % N/A N/A N/A N/A Bank $ 2,049,973 10.94 % $ 749,540 4.00 % N/A N/A $ 936,925 5.00 % Actual Required For Capital Adequacy Purposes Minimum Capital Adequacy Required To Be Well Capitalized December 31, 2021 Amount Ratio Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) Common equity Tier 1 capital Company $ 1,657,754 11.03 % $ 676,633 4.50 % $ 1,052,540 7.00 % N/A N/A Bank $ 1,947,914 12.96 % $ 676,328 4.50 % $ 1,052,066 7.00 % $ 976,919 6.50 % Total capital Company $ 1,867,968 12.42 % $ 1,202,903 8.00 % $ 1,578,811 10.50 % N/A N/A Bank $ 2,056,675 13.68 % $ 1,202,361 8.00 % $ 1,578,099 10.50 % $ 1,502,952 10.00 % Tier 1 capital Company $ 1,759,207 11.70 % $ 902,178 6.00 % $ 1,278,085 8.50 % N/A N/A Bank $ 1,947,914 12.96 % $ 901,771 6.00 % $ 1,277,509 8.50 % $ 1,202,361 8.00 % Tier 1 capital Company $ 1,759,207 10.11 % $ 695,795 4.00 % N/A N/A N/A N/A Bank $ 1,947,914 11.20 % $ 695,593 4.00 % N/A N/A $ 869,491 5.00 %

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Revenue Recognition	REVENUE RECOGNITION Noninterest revenue streams within the scope of Topic 606 are discussed below. Service Charges on Deposit Accounts and Wire Transfer Fees Service charges on noninterest and interest bearing deposit accounts consist of monthly service charges, customer analysis charges, non-sufficient funds (“NSF”) charges, and other deposit account related charges. The Company’s performance obligation for account analysis charges and monthly service charges is generally satisfied, and the related revenue is recognized over the period in which the service is provided. NSF charges, other deposit account related charges, and wire transfer fees are transaction based, and therefore the Company’s performance obligation is satisfied at the point of the transaction, and related revenue recognized at that point in time. Payment for service charges on deposit accounts is primarily received immediately or in the following month through a direct charge to customers’ accounts. Service charges on deposit accounts and wire transfers are summarized below: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Noninterest bearing deposit account income: Monthly service charges $ 997 $ 1,065 $ 1,301 Customer analysis charges 4,602 3,219 6,765 NSF charges 2,889 2,554 3,687 Other service charges 355 345 598 Total noninterest bearing deposit account income 8,843 7,183 12,351 Interest bearing deposit account income: Monthly service charges 95 92 92 Total service fees on deposit accounts $ 8,938 $ 7,275 $ 12,443 Wire transfer fee income: Wire transfer fees $ 3,005 $ 3,082 $ 3,188 Foreign exchange fees 472 437 389 Total wire transfer fees $ 3,477 $ 3,519 $ 3,577 OREO Income (Expense) OREO are often sold in transactions that, under ASC 606, may not be considered a contract with a customer because the sale of the asset may not be an output of the Company’s ordinary activities. However, sales of nonfinancial assets, including in-substance nonfinancial assets, should be accounted for in accordance with ASC 610-20, “ Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets”

Earnings Per Share ("EPS")

Earnings Per Share ("EPS")	12 Months Ended
	Dec. 31, 2022
Earnings Per Share [Abstract]
Earnings Per Share ("EPS")	EARNINGS PER SHARE (“EPS”) Basic EPS does not reflect the possibility of dilution that could result from the issuance of additional shares of common stock upon exercise or conversion of outstanding equity awards or convertible notes and is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if stock options, convertible notes, employee stock purchase program (“ESPP”) shares, or other contracts to issue common stock were exercised or converted to common stock that would then share in earnings. For the years ended December 31, 2022, 2021 and 2020, stock options and restricted share awards of 693,668, 772,707, and 827,405 shares of common stock, respectively, were excluded in computing diluted earnings per common share because they were anti-dilutive. In 2018, the Company issued $217.5 million in convertible senior notes maturing on May 15, 2038. The convertible notes can be converted into the Company’s shares of common stock at an initial rate of 45.0760 shares per $1,000 principal amount of the notes (See Note 10 “Subordinated Debentures and Convertible Notes” of the Notes to Consolidated Financial Statements for additional information regarding convertible notes issued). For the years ended December 31, 2022, 2021 and 2020, shares related to the convertible notes issued were not included in the Company’s diluted EPS calculation. In accordance with the terms of the convertible notes and settlement options available to the Company, no shares would have been delivered to investors of the convertible notes upon assumed conversion based on the Company’s common stock price during the years ended December 31, 2022, 2021 and 2020 as the conversion price exceeded the market price of the Company’s stock. In 2019, the Company’s Board of Directors approved a share repurchase program that authorized the Company to repurchase up to $50.0 million of its common stock for each repurchase program. In July 2021, the Company’s Board of Directors approved another share repurchase program that authorizes the Company to repurchase an additional $50.0 million of its common stock. In January 2022, the Company’s Board of Directors approved a share repurchase program that authorizes the Company to repurchase up to an additional $50.0 million of its common stock. During the year ended December 31, 2020, the Company repurchased 2,716,034 shares of common stock totaling $36.2 million. During the year ended December 31, 2021, the Company repurchased 3,682,268 shares of common stock totaling $50.0 million. During the year ended December 31, 2022, the Company repurchased 1,038,986 shares of common stock totaling $14.7 million. The following table shows the computation of basic and diluted EPS for the years ended December 31, 2022, 2021, and 2020. Net Income Weighted-Average Shares Earnings (Dollars in thousands, except share and per share data) 2022 Basic EPS - common stock $ 218,277 119,824,970 $ 1.82 Effect of dilutive securities: Stock options, restricted stock, and ESPP shares 647,375 Diluted EPS - common stock $ 218,277 120,472,345 $ 1.81 2021 Basic EPS - common stock $ 204,572 122,321,768 $ 1.67 Effect of dilutive securities: Stock options, restricted stock, and ESPP shares 811,257 Diluted EPS - common stock $ 204,572 123,133,025 $ 1.66 2020 Basic EPS - common stock $ 111,515 123,501,401 $ 0.90 Effect of dilutive securities: Stock options, restricted stock, and ESPP shares 387,942 Diluted EPS - common stock $ 111,515 123,889,343 $ 0.90

Transfers and Servicing

Transfers and Servicing	12 Months Ended
	Dec. 31, 2022
Transfers and Servicing [Abstract]
Transfers and Servicing of Financial Assets	SERVICING ASSETS Servicing assets are recognized when SBA and residential mortgage loans are sold with the servicing retained by the Company and the related income is recorded as a component of gains on sales of loans. Servicing assets are initially recorded at fair value based on the present value of the contractually specified servicing fee, net of servicing costs, over the estimated life of the loan, using a discount rate. The Company’s servicing costs approximates the industry average servicing costs of 40 basis points. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Management periodically evaluates servicing assets for impairment based upon the fair value of the rights as compared to the carrying amount. Impairment is determined by stratifying rights into groupings based on loan type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. As of December 31, 2022 and 2021, the Company did not have a valuation allowance on its servicing assets. The changes in servicing assets for the years ended December 31, 2022, 2021 and 2020 were as follows: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Balance at beginning of period $ 10,418 $ 12,692 $ 16,417 Additions through originations of servicing assets 5,200 2,880 2,864 Amortization (3,990) (5,154) (6,589) Balance at end of period $ 11,628 $ 10,418 $ 12,692 Loans serviced for others are not reported as assets. The principal balances of loans serviced for other institutions were $1.10 billion and $1.04 billion as of December 31, 2022 and 2021, respectively. Total servicing assets at December 31, 2022 totaled $11.6 million and were comprised of $8.9 million in SBA servicing assets and $2.7 million in mortgage related servicing assets. At December 31, 2021, servicing assets totaled $10.4 million, comprised of $7.2 million in SBA servicing assets and $3.2 million in mortgage related servicing assets. The Company utilizes the discounted cash flow method to calculate the initial excess servicing assets. The inputs used in evaluating servicing assets for impairment at December 31, 2022 and 2021 are presented below. December 31, 2022 2021 SBA Servicing Assets: Weighted-average discount rate 8.76% 11.20% Constant prepayment rate 12.09% 14.64% Mortgage Servicing Assets: Weighted-average discount rate 11.38% 8.63% Constant prepayment rate 9.61% 9.58%

Condensed Financial Statements

Condensed Financial Statements of Parent Company	12 Months Ended
	Dec. 31, 2022
Condensed Financial Information Disclosure [Abstract]
Condensed Financial Information of Parent Company Only Disclosure	CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY The following presents the unconsolidated condensed statements of financial condition for only the parent company, Hope Bancorp, as of December 31, 2022 and 2021: STATEMENTS OF FINANCIAL CONDITION December 31, 2022 2021 (Dollars in thousands) ASSETS: Cash and cash equivalents $ 62,380 $ 21,006 Other assets 11,689 11,382 Investment in bank subsidiary 2,270,280 2,383,098 Total assets $ 2,344,349 $ 2,415,486 LIABILITIES: Convertible notes, net $ 217,148 $ 216,209 Subordinated debentures, net 106,565 105,354 Accounts payable and other liabilities 1,308 940 Total liabilities 325,021 322,503 Stockholders’ equity 2,019,328 2,092,983 Total liabilities and stockholders’ equity $ 2,344,349 $ 2,415,486 The following presents the unconsolidated condensed statements of income for only the parent company, Hope Bancorp, for the years ended December 31, 2022, 2021 and 2020: STATEMENTS OF INCOME AND COMPREHENSIVE INCOME Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Interest income $ — $ — $ — Interest expense (11,330) (9,186) (14,147) Noninterest income — — — Noninterest expense (7,212) (5,633) (5,316) Dividend from subsidiary, net 133,000 128,000 96,000 Equity in undistributed earnings of subsidiary 98,354 87,025 29,781 Income before income tax benefit 212,812 200,206 106,318 Income tax benefit 5,465 4,366 5,197 Net income 218,277 204,572 111,515 Other comprehensive (loss) income, net of tax (219,445) (44,165) 23,604 Comprehensive (loss) income $ (1,168) $ 160,407 $ 135,119 The following presents the unconsolidated condensed statements of cash flows for only the parent company, Hope Bancorp, for the years ended December 31, 2022, 2021 and 2020: STATEMENTS OF CASH FLOWS Year Ended December 31, 2022 2021 2020 (Dollars in thousands) CASH FLOWS FROM OPERATING ACTIVITIES: Net income $ 218,277 $ 204,572 $ 111,515 Adjustments to reconcile net income to net cash from operating activities: Amortization and capitalization 2,150 2,115 6,250 Stock-based compensation expense 502 141 201 Change in other assets (307) (326) (1,194) Change in accounts payable and other liabilities 368 25 (440) Equity in undistributed earnings of bank subsidiary (98,354) (87,025) (29,781) Net cash from operating activities 122,636 119,502 86,551 CASH FLOWS FROM INVESTING ACTIVITIES: Proceeds from sale of equity investments — — — Net cash from investing activities — — — CASH FLOWS USED IN FINANCING ACTIVITIES: Issuance of additional stock pursuant to various stock plans 531 — — Purchase of treasury stock (14,667) (50,000) (36,180) Payments of cash dividends (67,126) (68,666) (69,182) Net cash used in financing activities (81,262) (118,666) (105,362) NET CHANGE IN CASH AND CASH EQUIVALENTS 41,374 836 (18,811) CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR 21,006 20,170 38,981 CASH AND CASH EQUIVALENTS, END OF YEAR $ 62,380 $ 21,006 $ 20,170

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2022
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (unaudited)	QUARTERLY FINANCIAL DATA (UNAUDITED) Summarized unaudited quarterly financial data follows for the three months ended: 2022 Three Months Ended, March 31 June 30 September 30 December 31 (Dollars in thousands, except per share data) Interest income $ 144,872 $ 157,824 $ 189,182 $ 224,237 Interest expense 11,696 16,286 35,996 73,716 Net interest income before provision (credit) for credit losses 133,176 141,538 153,186 150,521 Provision (credit) for credit losses (11,000) 3,200 9,200 8,200 Net interest income after provision (credit) for credit losses 144,176 138,338 143,986 142,321 Noninterest income 13,186 12,746 13,355 12,110 Noninterest expense 75,373 80,365 83,914 84,518 Income before income tax provision 81,989 70,719 73,427 69,913 Income tax provision 21,251 18,631 19,679 18,210 Net income $ 60,738 $ 52,088 $ 53,748 $ 51,703 Basic earnings per common share $ 0.51 $ 0.43 $ 0.45 $ 0.43 Diluted earnings per common share $ 0.50 $ 0.43 $ 0.45 $ 0.43 2021 Three Months Ended, March 31 June 30 September 30 December 31 (Dollars in thousands, except per share data) Interest income $ 138,293 $ 140,204 $ 142,866 $ 145,169 Interest expense 15,714 13,627 12,570 11,851 Net interest income before provision (credit) for credit losses 122,579 126,577 130,296 133,318 Provision (credit) for credit losses 3,300 (7,000) (10,000) 1,500 Net interest income after provision (credit) for credit losses 119,279 133,577 140,296 131,818 Noninterest income 8,804 11,076 10,617 13,097 Noninterest expense 70,431 73,123 75,502 74,236 Income before income tax provision 57,652 71,530 75,411 70,679 Income tax provision 13,965 17,767 19,912 19,056 Net income $ 43,687 $ 53,763 $ 55,499 $ 51,623 Basic earnings per common share $ 0.35 $ 0.44 $ 0.45 $ 0.43 Diluted earnings per common share $ 0.35 $ 0.43 $ 0.45 $ 0.43

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Principles of Consolidation, Policy	Principles of Consolidation— The accounting and reporting policies of the Company are in accordance with accounting principles generally accepted in the United States of America and conform to practices within the banking industry. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, principally the Bank. Intercompany transactions and balances are eliminated in consolidation.
Cash and Cash Equivalents, Policy	Cash and Cash Equivalents —Cash and cash equivalents include cash and due from banks, interest-earning deposits, and federal funds sold, which have original maturities less than 90 days. The Company may be required to maintain reserve and clearing balances with the Federal Reserve Bank under the Federal Reserve Act. The reserve and clearing requirement balance was $0 at December 31, 2022 and 2021. Net cash flows are reported for customer loan and deposit transactions, investment transactions, federal funds purchased, deferred income taxes, and other assets and liabilities.
Interest Bearing Deposits in Other Financial Institutions, Policy	Interest-Bearing Deposits in Other Financial Institutions —Interest-bearing deposits in other financial institutions are comprised of the Company’s investments in certificates of deposits that have original maturities greater than 90 days.
Investment Securities, Policy	Investment Securities— Securities are classified and accounted for as follows: (i) Securities that the Company has the positive intent and ability to hold to maturity are classified as “held to maturity” and reported at amortized cost. (ii) Securities are classified as “available for sale” when they might be sold before maturity and are reported at fair value. Unrealized holding gains and losses are reported as a separate component of stockholders’ equity in accumulated other comprehensive income, net of taxes. Accreted discounts and amortized premiums on securities are included in interest income using the interest method, and realized gains or losses related to sales of securities recorded on trade date and are calculated using the specific identification method, without anticipating prepayments, except for mortgage-backed securities where prepayments are expected. The Company has made a policy election to exclude accrued interest from the amortized cost basis of debt securities and report accrued interest separately in accrued interest and other assets on the consolidated balance sheets. Investment securities available for sale and held to maturity are placed on non-accrual status when management no longer expects to receive all contractual amounts due, which is generally at 90 days past due. Accrued interest receivable is reversed against interest income when a security is placed on non-accrual status. Accordingly, the Company does not recognize an allowance for credit loss against accrued interest receivable. Management may transfer investment securities classified as AFS to HTM when upon reassessment it is determined that the Company has both the positive intent and ability to hold these securities to maturity. The investment securities are transferred at fair value resulting in a premium or discount recorded on the transfer date. Unrealized gains or losses at the date of transfer continue to be reported as a separate component of accumulated other comprehensive income/loss, net (“AOCI”). The premium or discount and the unrealized gain or loss, net of tax, in AOCI will be amortized to interest income over the remaining life of the securities using the interest method. In 2022, the Company transferred $239.0 million in fair value of available for sale securities to held to maturity. There were no transfers in 2021. Investment securities AFS are recorded at fair value, with unrealized gains and losses, net of tax, reported as a separate component of AOCI. For investment securities AFS in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more-likely-than-not that it will be required to sell, the securities before recovery of the amortized cost basis. If either of these criteria is met, the securities’ amortized cost basis is written down to fair value as a current period expense recorded on the consolidated statements of income and other comprehensive income. If either of the above criteria is not met, management evaluates whether the decline in fair value is the result of credit losses or other factors. In making this assessment, management may consider various factors including the extent to which fair value is less than amortized cost, performance of any underlying collateral and adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected are compared to the amortized cost basis of the security and any excess is recorded as an allowance for credit losses, limited to the amount by which the fair value is less than the amortized cost basis. Any impairment not recorded through an allowance for credit losses is recognized in AOCI, net of tax, as a non-credit related impairment. For allowance for credit losses on investment securities AFS and HTM, refer to the Allowance for Credit Losses on Securities Available for Sale and Allowance for Credit Losses on Securities Held to Maturity sections of Note 3 “Investment Securities” for details.
Equity Investments, Policy	Equity Investments —Equity investments include mutual funds, correspondent bank stock, Community Development Financial Institutions Fund (“CDFI”) investments, and Community Reinvestment Act (“CRA”) investments. The Company’s mutual funds are considered equity investments with readily determinable fair values and changes to fair value are recorded in other noninterest income. The Company’s investment in correspondent bank stock, CDFI investments, and CRA investments are equity investments without readily determinable fair values. Equity investments without readily determinable fair values are measured at cost, less impairment, and are adjusted for observable price changes which is recorded in noninterest income.
Financing Receivables	Loans Held for Sale —Small Business Administration (“SBA”) and residential mortgage loans that the Company has the intent to sell prior to maturity have been designated as held for sale at origination and are recorded at the lower of cost or fair value, on an aggregate basis. Certain loans which were originated with the intent to hold to maturity are subsequently transferred to held for sale once there is an intent to sell the loan. A valuation allowance is established if the aggregate fair value of such loans is lower than their cost and charged to earnings. Gains or losses recognized upon the sale of loans are determined on a specific identification basis. Loan transfers are accounted for as sales when control over the loan has been surrendered. Control over such loans is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets and (3) the Company does not maintain control over the transferred assets through an agreement to repurchase them before their maturity. Loans— Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the amount of unpaid principal, adjusted for net deferred fees and costs, premiums and discounts, purchase accounting fair value adjustments, and allowance for credit losses. Interest income is accrued on the unpaid principal balance. Nonrefundable loan origination fees and certain direct origination costs are deferred and recognized in interest income using the level-yield method over the life of the loan. Interest on loans is credited to income as earned and is accrued only if deemed collectible. The loan portfolio consists of four segments: real estate, commercial business, residential mortgage, and consumer and other loans. Real estate loans are extended for the purchase and refinance of commercial real estate and are generally secured by first deeds of trust and are collateralized by residential or commercial properties. Commercial business loans are loans provided to businesses for various purposes such as for working capital, purchasing inventory, debt refinancing, business acquisitions, international trade finance activities, and other business related financing needs and also include warehouse lines of credit, syndicated loans, and SBA Paycheck Protection Program (“PPP”) loans. Residential mortgage loans are extended for personal, family, or household use and are secured by a mortgage or deed of trust. Consumer and other loans consist of home equity, credit card, and other personal loans. On January 1, 2020, the Company adopted ASU 2016-13, or CECL, using the modified retrospective method for all of its loans measured at amortized cost. With the adoption of CECL, the Company reassessed its loan portfolio segments and classes of loans receivable and made changes based on the new allowance for credit losses methodology. As a result, the Company now discloses residential mortgage loans as a separate segment and class of receivable. Trade finance loans, which were previously disclosed as a distinct segment and class of receivable, are now combined with commercial business loans. Prior period balances have been reclassified to conform with the current presentation. Generally, loans are placed on nonaccrual status and the accrual of interest is discontinued if principal or interest payments become 90 days past due and/or management deems the collectability of the principal and/or interest to be in question. Loans to a customer whose financial condition has deteriorated are considered for nonaccrual status whether or not the loan is 90 days or more past due. Generally, payments received on nonaccrual loans are recorded as principal reductions. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Other loan fees and charges, representing service costs for the prepayment of loans, for delinquent payments, or for miscellaneous loan services, are recorded as income when collected. The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, including, but not limited to, current financial information, historical payment experience, credit documentation, public information, and current economic trends. Homogeneous loans (i.e., home mortgage loans, home equity lines of credit, overdraft loans, express business loans, and automobile loans) are not risk rated and credit risk is analyzed largely by the number of days past due. This analysis is performed at least on a quarterly basis: • Pass: Loans that meet a preponderance or more of the Company’s underwriting criteria and that evidence an acceptable level of risk. • Special Mention: Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. • Substandard: Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the borrower or by the collateral pledged, if any. Loans in this classification have a well-defined weakness or weaknesses that jeopardize the repayment of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. • Doubtful/Loss: Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or repayment in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Allowance for Credit Losses (“ACL”) —The Company calculates its ACL by estimating expected credit losses on a collective basis for loans that share similar risk characteristics. Loans that do not share similar risk characteristics with other loans are evaluated for credit losses on an individual basis. The Company differentiates its loan segments based on shared risk characteristics for which allowance for credit losses is measured on a collective basis. Risk Characteristics Real estate Property type, location, owner occupied status Commercial business Delinquency status, risk rating, industry type Residential mortgage FICO score, LTV, delinquency status, maturity date, collateral value, location Consumer and other Historical losses The Company uses a combination of a modeled and non-modeled approach that incorporates current and future economic conditions to estimate lifetime expected losses on a collective basis. The Company uses Probability of Default (“PD”), Loss Given Default (“LGD”), and Exposure at Default (“EAD”) methodologies with quantitative factors and qualitative considerations in calculation of the allowance for credit losses for collectively assessed loans. The Company uses a reasonable and supportable period of 2 years at which point loss assumptions revert back to historical loss information by means of 1 year reversion period. For a discussion of the Company’s former incurred loss allowance for loan losses methodology, please refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. The ACL for the Company’s construction, credit card, and certain consumer loans is calculated based on a non-modeled approach utilizing historical loss rates to estimate losses. A non-modeled approach was chosen for these loans as fewer data points exist which could result in high levels of estimated loss volatility under a modeled approach. Materiality was another factor in using a non-modeled approach for these loans as in aggregate, non-modeled loans represented approximately 1% of the Company’s total loan portfolio as of December 31, 2022. The Economic Forecast Committee (“EFC”) reviews multiple scenarios put together by an independent third party and chooses a single scenario that best aligns with management’s expectation of future economic conditions. The forecast scenarios contain certain macroeconomic variables that are incorporated into the Company’s modeling process, including GDP, unemployment rates, interest rates, and commercial real estate prices. As of December 31, 2022, the Company chose a forecast scenario that incorporated the latest projected economic assumptions. The allowance for credit losses at December 31, 2022 utilized the Moody’s consensus scenario, as well as more specific information, including updated market data which reflects the economic conditions that align with management’s view. In the prior year, the Company also utilized Moody’s consensus scenario in its ACL calculation. Additionally, in order to systematically quantify the credit risk impact of other trends and changes within the loan portfolio that may not be captured by the modeled and non-modeled approach, the Company utilizes qualitative adjustments to estimate total expected losses. The parameters for making adjustments are established under a Credit Risk Matrix that provides different possible scenarios for each of the factors below. The Credit Risk Matrix and the possible scenarios enable the Bank to qualitatively adjust the allowance for credit losses by as much as 25 basis points for each factor. This matrix considers the following seven factors, which are patterned after the guidelines provided under the Federal Financial Institutions Examination Council (“FFIEC”) Interagency Policy Statement on the Allowance for Loan and Lease Losses, updated to reflect the application of the CECL methodology: • Changes in lending policies and procedures, including underwriting standards and collection, charge-off, and recovery practices; • Changes in the nature and volume of the loan portfolio; • Changes in the experience, ability and depth of lending management and staff; • Changes in the trends of the volume and severity of past due loans, classified loans, nonaccrual loans, troubled debt restructurings and other loan modifications; • Changes in the quality of the loan review system and the degree of oversight by the Directors; • The existence and effect of any concentrations of credit and changes in the level of such concentrations; and • The effect of other external factors, such as competition, legal and regulatory requirements, and others that have an impact on the level of estimated losses in the Company’s loan portfolio. For loans which do not share similar risk characteristics such as nonaccrual and TDR loans above $1.0 million, the Company evaluates these loans on an individual basis in accordance with ASC 326. These nonaccrual and TDR loans are considered to have different risk profiles than performing loans and therefore are evaluated separately. The Company collectively assesses TDRs and nonaccrual loans with balances below $1.0 million along with the performing and accrual loans in order to reduce the operational burden of individually assessing small TDR and nonaccrual loans with immaterial balances. For individually assessed loans, the ACL is measured using either 1) the present value of future cash flows discounted at the loan’s effective interest rate; 2) the loan’s observable market price; or 3) the fair value of the collateral, if the loan is collateral dependent. For the collateral dependent loans, the Company obtains a new appraisal to determine the fair value of underlying loan collateral. The appraisals are based on an “as-is” valuation. To ensure that appraised values remain current, the Company either obtains updated appraisals every twelve months from a qualified independent appraiser or an internal evaluation of the collateral is performed by qualified personnel. If the third party market data indicates that the value of the collateral property has declined since the most recent valuation date, management adjusts the value of the property downward to reflect current market conditions. If the fair value of the collateral is less than the amortized balance of the loan, the Company recognizes an ACL with a corresponding charge to the provision for credit losses. TDR loans are individually evaluated in accordance with ASC 310 and ASC 326. The concessions may be granted in various forms, including reduction in the stated interest rate, reduction in the amount of principal amortization, forgiveness of a portion of a loan balance or accrued interest, or extension of the maturity date. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed on the probability that the borrower will be in payment default on their debt in the foreseeable future without the modification. This evaluation is performed under the Bank’s internal underwriting policy. TDR loans on accrual status are comprised of loans that were accruing at the time of restructuring and for which the Company anticipates full repayment of both principal and interest under the restructured terms. TDR loans that are on nonaccrual status can be returned to accrual status after a period of sustained performance, generally determined to be six months of timely payments as modified. Sustained performance includes the periods prior to the modification and if the prior performance met or exceeded the modified terms. With the adoption of CECL, the Company elected not to consider accrued interest receivable in its estimates of expected credit losses because the Company writes off uncollectible accrued interest receivable in a timely manner. The Company considers writing off accrued interest amounts once the amounts become 90 days past due to be considered within a timely manner for all of its loan segments. The Company has elected to write off accrued interest receivables by reversing interest income. The Coronavirus Aid, Relief, and Economic Security (“CARES”) Act provides banks the option to temporarily suspend certain requirements under U.S. GAAP related to TDR accounting for a limited period of time to account for the effects of COVID-19 if (i) the loan modification is made between March 1, 2020 and the earlier of January 1, 2022 or 60 days after the end of the coronavirus emergency declaration and (ii) the applicable loan was not more than 30 days past due as of December 31, 2019. As such, all modified loans that met the criteria outlined within Section 4013 of the CARES Act were not classified as TDR loans unless the loans were TDR prior to the COVID-19 modification. The balance of active modified loans under the CARES Act and not subject to TDR accounting was $0 at December 31, 2022 and $22.8 million at December 31, 2021.
Derivatives, Policy	Derivative Financial Instruments and Hedging Transactions —As part of the Company’s asset and liability management strategy, the Company uses derivative financial instruments, such as interest rate swaps, risk participation agreements, foreign exchange contracts, collars, and caps and floors, with the overall goal of minimizing the impact of interest rate fluctuations on net interest margin. The Company’s interest rate swaps and caps involve the exchange of fixed rate and variable rate interest payment obligations without the exchange of the underlying notional amounts and are therefore accounted for as stand-alone derivatives. Derivative instruments are included in other assets or accrued expenses and other liabilities on the Consolidated Balance Sheet at fair value. At the inception of the derivative contract, the Company designates the derivative as (1) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”), or (2) an instrument with no hedging designation (“stand-alone derivative”). For a cash flow hedge, the gain or loss on the derivative is reported as a component of other comprehensive income and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Changes in the fair value of derivatives that do not qualify for hedge accounting are reported currently in earnings, in noninterest income. Net cash settlements on derivatives that do not qualify for hedge accounting are reported in noninterest income. The related cash flows are recognized on the cash flows from operating activities section on the Consolidated Statement of Cash Flows. Residential mortgage loans funded with interest rate lock commitments and forward commitments for the future delivery of mortgage loans to third party investors, are both considered derivatives. The Company accounts for loan commitments related to the origination of mortgage loans that will be held-for-sale as derivatives at fair value on the balance sheet, with changes in fair value recorded in earnings in the period in which the changes occur. As part of the Company’s overall risk management, the Company’s Asset Liability Committee, which meets monthly, monitors and measures interest rate risk and the sensitivity of assets and liabilities to interest rate changes, including the impact of derivative transactions. The Company formally documents all relationships between derivatives and hedged items, as well as the risk-management objective and strategy for undertaking various hedge transactions. This documentation includes linking cash flow hedges to specific assets and liabilities on the balance sheet or to specific firm commitments or forecasted transactions. The Company also formally assesses, both at the hedge’s inception and on an ongoing basis, whether the derivative instruments that are used in hedging transactions are highly effective in offsetting changes in cash flows of the hedged items. The Company discontinues hedge accounting prospectively when it is determined that (1) the derivative is no longer effective in offsetting changes in the cash flows of the hedged item, (2) the derivative expires, is sold, or terminated, (3) the derivative instrument is de-designated as a hedge because the forecasted transaction is no longer probable of occurring, (4) a hedged firm commitment no longer meets the definition of a firm commitment, or (5) management otherwise determines that designation of the derivative as a hedging instrument is no longer appropriate. When hedge accounting is discontinued, subsequent changes in fair value of the derivative are recorded as noninterest income. When a fair value hedge is discontinued, the hedged asset or liability is no longer adjusted for changes in fair value and the existing basis adjustment is amortized or accreted over the remaining life of the asset or liability. When a cash flow hedge is discontinued but the hedged cash flows or forecasted transaction is still expected to occur, changes in value that were accumulated in other comprehensive income are amortized or accreted into earnings over the same periods which the hedged transactions will affect earnings. The Company enters into interest rate collars which is an interest rate risk management tool that effectively creates a band within which the borrower's variable interest rate fluctuates, by combining an interest rate cap (or ceiling) with an interest rate floor. In order for the Company to hedge the Bank’s fixed rate loan portfolio, the Company entered into interest rate collar derivatives as a protection should the Fed lower interest rates in the event of a recession or other economic changes. The interest rate collars are designated as cash flow hedges of floating interest receivables. The Company enters into risk participation agreements with outside counterparties for interest rate swaps related to loans in which it is a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract. Risk participation agreements are credit derivatives not designated as hedges. Credit derivatives are not speculative and are not used to manage interest rate risk in assets or liabilities. Changes in the fair value in credit derivatives are recognized directly in earnings. The fee received, less the estimate of the loss for credit exposure, was recognized in earnings at the time of the transaction.
Other Real Estate Owned	OREO —OREO, which represents real estate acquired through foreclosure in satisfaction of commercial and real estate loans, is stated at fair value less estimated selling costs of the real estate. Loan balances in excess of the fair value of the real estate acquired at the date of acquisition are charged to the allowance for credit losses. Any subsequent operating expenses or income, reduction in estimated fair values, and gains or losses on disposition of such properties are charged or credited to current operations. For the year ended December 31, 2022, the Company foreclosed on properties with an aggregate carrying value of $938 thousand. The Company recorded $415 thousand in net valuation losses subsequent to the foreclosures during the year ended December 31, 2022, and the Company sold OREO properties for total proceeds of $524 thousand during the year. For the year ended December 31, 2021, the Company did not foreclose on any properties. The Company recorded $1.6 million in net valuation losses subsequent to the foreclosures during the year ended December 31, 2021, and the Company sold OREO properties for total proceeds of $15.2 million during the year.
Federal Home Loan Bank Stock	FHLB Stock —The Bank is a member of the FHLB system. Members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income.
Property, Plant and Equipment, Policy	Premises and Equipment —Premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization of premises and equipment are computed on the straight-line method over the following estimated useful lives: • Buildings - 15 to 39 years • Furniture, fixture, and equipment - 3 to 10 years • Computer equipment - 1 to 5 years • Computer software - 1 to 5 years • Leasehold improvement - life of lease or improvements, whichever is shorter
bank owned life insurance	BOLI —The Company has purchased life insurance policies on certain key executives and directors. BOLI is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement.
investment in affordable housing partnership, policy	Investments in Affordable Housing Partnerships —The Company owns limited partnership interests in projects of affordable housing for lower income tenants. Under the equity method of accounting, the annual amortization is based on the estimated tax deduction amounts the bank would receive in the year. The carrying value of such investments and commitments to fund investment in affordable housing is recorded as “Investments in affordable housing partnerships” in the Consolidated Statement of Financial Condition. Commitments to fund investments in affordable housing is also included in this line items but is also grossed up and recorded as a liability.
Lessee, Leases	Leases —Operating lease right-of-use (“ROU”) assets represent the Company’s right to use the underlying asset during the lease term and operating lease liabilities represent the Company’s obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at lease commencement based on the present value of the future lease payments using the Company’s incremental borrowing rate. The Company calculates its incremental borrowing rate by adding a spread to the FHLB borrowing interest rate at a given period. The Company does not capitalize short-term leases, which are leases with terms of twelve months or less. ROU assets and related operating lease liabilities are remeasured when lease terms are amended, extended, or when management intends to exercise available extension options. Operating lease expense, which is comprised of amortization of the ROU asset and the implicit interest accreted on the operating lease liability, is recognized on a straight-line basis over the lease term and is recorded in occupancy expense in the consolidated statements of income. The Company’s occupancy expense also includes variable lease costs which is comprised of the Company's share of actual costs for utilities, common area maintenance, property taxes, and insurance that are not included in lease liabilities and are expensed as incurred. Variable lease costs also include rent escalations based on changes to indices, such as the Consumer Price Index.
Goodwill and Intangible Assets, Policy	Goodwill and Intangible Assets— Goodwill is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any non-controlling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized but tested for impairment at least annually. In accordance with ASC 350 “ Intangibles - Goodwill and Other ”, the Company makes a qualitative assessment of whether it is more likely than not that a reporting unit’s fair value is less than its carrying amount before applying the goodwill impairment test. If management concludes that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, the step 1 impairment test is bypassed. Management assessed the qualitative factors related to goodwill as of December 31, 2022 and determined a Step 1 fair value assessment was not required. Based on qualitative assessment, management determined that goodwill was not impaired at December 31, 2022. Goodwill is assessed for impairment on an interim basis if circumstances change or an event occurs between annual assessments that would more likely than not reduce the fair value of the reporting unit below its carrying amount. The quantitative impairment assessment involves significant judgment. This judgment includes developing cash flow projections, selecting appropriate discount rates, calculation of a terminal growth rate, minimum target capitalization levels, identifying relevant market comparables, incorporating general economic and market conditions, and selecting an appropriate control premium. The selection and weighting of the various fair value techniques may result in a higher or lower fair value. Judgment is applied in determining the weighting that is most representative of fair value. seven
Transfers and Servicing of Financial Assets, Servicing of Financial Assets, Policy	Loan Servicing Assets— A portion of the premium on sale of SBA loans is recognized as gain on sale of loans at the time of the sale by allocating the carrying amount between the asset sold and the retained interest, including these servicing assets, based on their relative fair values. The remaining portion of the premium is recorded as a discount on the retained interest and is amortized over the remaining life of the loan as an adjustment to yield. The retained interest, net of any discount, are included in loans receivable—net of allowance for credit losses in the accompanying consolidated statements of financial condition. Servicing assets are recognized when SBA and residential mortgage loans are sold with servicing retained with the income statement effect recorded in gains on sales of loans. Servicing assets are initially recorded at fair value based on the present value of the contractually specified servicing fee, net of servicing costs, over the estimated life of the loan, using a discount rate. The Company’s servicing costs approximates the industry average servicing costs of 40 basis points. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans.
Share-Based Payment Arrangement	Stock-Based Compensation— Compensation cost is recognized for stock options and restricted stock awards issued to employees and directors, based on the fair value of these awards at the date of grant. A Black-Scholes model is utilized to estimate the fair value of stock options, while the market price of the Company’s common stock at the date of grant is used for restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award.
Income Tax, Policy	Income Taxes —Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred income tax assets and liabilities represent the tax effects, based on current tax law, of future deductible or taxable amounts attributable to events that have been recognized in the financial statements. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, the projected future taxable income and tax planning strategies in making this assessment. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded. The Company recognizes interest and / or penalties related to income tax matters in income tax expense.
Earnings Per Share, Policy	Earnings per Common Share —Basic Earnings per Common Share is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted Earnings per Common Share reflects the potential dilution of common shares that could share in the earnings of the Company.
Stockholders' Equity, Policy	Equity —The Company accrues for common stock dividends as declared. Common stock dividends of $67.1 million and $68.7 million, were paid in 2022 and 2021, respectively. There were no common stock dividends declared but unpaid at December 31, 2022 and 2021.
Dividend Restrictions, Policy	Dividend Restrictions —Banking regulations require maintaining certain capital levels and may limit the dividends paid by the Bank to the Company, or dividends paid by the Company to stockholders.
Comprehensive Income, Policy	Comprehensive Income —Comprehensive income consists of net income and other comprehensive income (loss). Other comprehensive income (loss) includes the changes in unrealized gains and losses on securities available for sale, unrealized losses on transferred investment securities held to maturity, and interest rate swaps used in cash flow hedges which is also recognized as separate components of stockholders’ equity, net of tax.
Segment Reporting, Policy	Operating Segments —The Company is managed as a single business segment. The financial performance of the Company is reviewed by the chief operating decision maker on an aggregate basis and financial and strategic decisions are made based on the Company as a whole. “Banking Operations” is considered to be the Company’s single combined operating segment, which raises funds from deposits and borrowings for loans and investments, and provides lending products, including construction, real estate, commercial, and consumer loans to its customers.
Commitments and Contingencies, Policy	Loss Contingencies —Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. The Company believes there are no such matters that would have a material effect on the consolidated financial statements as of December 31, 2022 or 2021. Accrued loss contingencies for all legal claims totaled approximately $229 thousand at December 31, 2022 and $52 thousand at December 31, 2021. Loan Commitments and Related Financial Instruments— Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. See Note 14 “Commitments and Contingencies” of the Notes to Consolidated Financial Statements for further discussion. Allowance for Unfunded Commitments— The allowance for unfunded commitments is maintained at a level believed by management to be sufficient to absorb estimated probable losses related to these unfunded credit facilities. The determination of the adequacy of the allowance is based on periodic evaluations of the unfunded credit facilities including an assessment of the probability of commitment usage, credit risk factors for loans outstanding to these same customers, and the terms and expiration dates of the unfunded credit facilities. The allowance for unfunded commitments is included in other liabilities on the consolidated statement of financial condition, with changes to the balance charged against noninterest expense.
Fair Value of Financial Instruments, Policy	Fair Values of Financial Instruments —Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates.
Impairment or Disposal of Long-Lived Assets, Policy	Impairment of Long-Lived Assets— The Company evaluates long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. If the estimated future cash flows (undiscounted) over the remaining useful life of the asset are less than the carrying value, an impairment loss would be recorded to reduce the related asset to its estimated fair value.
Transfers and Servicing of Financial Assets, Transfers of Financial Assets, Policy	Transfer of Financial Assets —Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Use of estimates	Use of Estimates in the Preparation of Consolidated Financial Statements —The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles (“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 period. Actual results could materially differ from those estimates.
Reclassification, Comparability Adjustment	Reclassifications —Some items in the prior year financial statements were reclassified to conform to the current presentation. The reclassifications had no effect on the prior year net income or stockholders’ equity.
Pending Accounting Pronouncements	Accounting Pronouncements Adopted In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform: Facilitation of the Effects of Reference Rate Reform on Financial Reporting”. The amendments provide temporary, optional guidance to ease the potential burden in accounting for reference rate reform. The amendments provide optional expedients and exceptions for applying GAAP to transactions affected by reference rate reform if certain criteria are met. The amendments primarily include relief related to contract modifications and hedging relationships, as well as providing a one-time election for the sale or transfer of debt securities classified as held-to-maturity. The Company adopted ASU 2020-04 during 2022 with no material impact to the Company’s consolidated financial statements. In December 2022, the FASB issued 2022-06, “Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848”, to defer the sunset date of Topic 848 from December 31, 2022 to December 31, 2024, after which entities will no longer be permitted to apply the relief in Topic 848. Topic 848, which was established by the previously issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, provides relief to entities during the reference rate’s temporary transition period by providing optional expedients and exceptions for applying generally accepted accounting principles to certain contract modifications and hedging relationships that reference LIBOR or another reference rate expected to be discontinued. Since ASU 2020-04 was issued, the UK Financial Conduct Authority delayed the intended cessation date of certain tenors of US LIBOR to June 30, 2023, which is beyond the current sunset date of Topic 848. The new ASU defers the sunset date accordingly to continue to provide the intended relief. The Company adopted ASU 2022-06 during 2022 with no material impact to the Company’s consolidated financial statements. Pending Accounting Pronouncements In October 2021, the FASB issued ASU 2021-08, “Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities From Contracts With Customers”, to address diversity in practice and inconsistency related to the accounting for revenue contracts with customers acquired in a business combination. The amendments require that the acquirer recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606. At the acquisition date, an acquirer should account for the related revenue contracts in accordance with Topic 606 as if it had originated the contracts. The ASU also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination and applies to contract assets and contract liabilities from other contracts to which the provisions of Topic 606 apply. The amendments in this ASU are effective for fiscal years beginning after December 15, 2022, and interim periods within those fiscal years. Entities should apply the amendments prospectively to business combinations that occur after the effective date. Early adoption is permitted, including in any interim period, for public business entities for periods for which financial statements have not yet been issued, and for all other entities for periods for which financial statements have not yet been made available for issuance. The Company adopted ASU 2021-08 on January 1, 2023 and the adoption did not have a material impact on the Company’s consolidated financial statements. In March 2022, the FASB issued ASU 2022-02, “Financial Instruments-Credit Losses (Topic 326)”. The standard addresses the following: 1) eliminates the accounting guidance for TDRs, will require an entity to determine whether a modification results in a new loan or a continuation of an existing loan, 2) expands disclosures related to modifications, and 3) will require disclosure of current period gross write-offs of financing receivables within the vintage disclosures table. The amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years and are applied prospectively, except with respect to the recognition and measurement of TDRs, where an entity has the option to apply a modified retrospective transition method. Early adoption of the amendments in this update is permitted. An entity may elect to early adopt the amendments regarding TDRs and related disclosure enhancements separately from the amendments related to vintage disclosures. The Company adopted ASU 2021-08 on January 1, 2023 and the adoption did not have a material impact on the Company’s consolidated financial statements.
Revenue from Contract with Customer	Revenue from Contracts with Customers— With the adoption of ASU 2014-09 (Topic 606), the Company recognizes revenue when obligations under the terms of a contract with customers are satisfied. Topic 606 does not apply to revenue associated with financial instruments, including revenue from loans and securities. In addition, certain noninterest income streams such as fees associated with mortgage servicing rights, financial guarantees, derivatives, and certain credit card fees are also out of scope of the new guidance. Topic 606 is applicable to noninterest revenue streams such as deposit related fees, wire transfer fees, and certain OREO related net gains or expenses.

Equity Investments (Tables)

Equity Investments (Tables)	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Schedule Of Change In Fair Value For Equity Investment Securities	The changes in fair value for equity investments with readily determinable fair values for the years ended December 31, 2022 and 2021 were recorded in other noninterest income and fees as summarized in the table below: Year Ended December 31, 2022 2021 (Dollars in thousands) Net change in fair value recorded during the period on equity investments with readily determinable fair value $ (1,917) $ (789) Less: Net change in fair value recorded on equity investments sold during the period (1,354) — Net change in fair value on equity investments with readily determinable fair values held at the end of the period $ (563) $ (789)

Securities Available for Sale (

Securities Available for Sale (Tables)	12 Months Ended
	Dec. 31, 2022
Debt Securities, Available-for-Sale [Abstract]
Schedule of Available-for-sale and Held-to-maturity Securities Reconciliation	The following is a summary of investment securities as of the dates indicated: December 31, 2022 December 31, 2021 Amortized Gross Gross Fair Amortized Gross Gross Fair (Dollars in thousands) Debt securities available for sale: U.S. Treasury securities $ 3,990 $ — $ (104) $ 3,886 $ — $ — $ — $ — U.S. Government agency and U.S. Government sponsored enterprises: Agency securities 4,000 — (133) 3,867 — — — — Collateralized mortgage obligations 947,541 — (153,842) 793,699 1,039,543 3,357 (16,470) 1,026,430 Mortgage-backed securities: Residential 544,084 — (90,907) 453,177 769,113 1,985 (11,874) 759,224 Commercial 417,241 — (48,954) 368,287 595,659 9,103 (5,360) 599,402 Asset-backed securities 153,539 — (5,935) 147,604 153,564 11 (124) 153,451 Corporate securities 23,351 — (4,494) 18,857 23,398 130 (1,044) 22,484 Municipal securities 195,675 790 (13,713) 182,752 104,371 1,680 (767) 105,284 Total investment securities available for sale $ 2,289,421 $ 790 $ (318,082) $ 1,972,129 $ 2,685,648 $ 16,266 $ (35,639) $ 2,666,275 Debt securities held to maturity: U.S. Government agency and U.S. Government sponsored enterprises: Mortgage-backed securities: Residential $ 157,881 $ — $ (7,041) $ 150,840 $ — $ — $ — $ — Commercial 113,185 1 (5,619) 107,567 — — — — Total investment securities held to maturity $ 271,066 $ 1 $ (12,660) $ 258,407 $ — $ — $ — $ —
Schedule of Realized Gain (Loss)	The proceeds from sales of securities and total gains and losses are listed below: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Proceeds from investments sold $ — $ — $ 168,069 Gains from sales of securities $ — $ — $ 7,531 Losses from sales of securities — — — Gains from called securities — — — Net gain on sales or called securities $ — $ — $ 7,531
Interest Income	The following table presents a breakdown of interest income recorded for investment securities that are taxable and nontaxable. Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Interest income on investment securities Taxable $ 50,043 $ 34,583 $ 37,534 Nontaxable 2,177 909 1,828 Total $ 52,220 $ 35,492 $ 39,362
Investments Classified by Contractual Maturity Date	The amortized cost and estimated fair value of investment securities at December 31, 2022, by contractual maturity, are presented in the table below. Collateralized mortgage obligations, mortgage-backed securities, and asset-backed securities are presented by final maturity. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations, with or without call or prepayment penalties. Available for Sale Held to Maturity Amortized Estimated Amortized Estimated (Dollars in thousands) Debt securities: Due within one year $ 2,307 $ 2,267 $ — $ — Due after one year through five years 135,796 126,723 7,742 7,561 Due after five years through ten years 131,656 118,654 28,254 27,241 Due after ten years 2,019,662 1,724,485 235,070 223,605 Total $ 2,289,421 $ 1,972,129 $ 271,066 $ 258,407
Schedule of Gross Unrealized Losses and Estimated Fair Values of Investments	The following tables show the Company’s investments’ gross unrealized losses and estimated fair values, aggregated by investment category and the length of time that the individual securities have been in a continuous unrealized loss position as of the dates indicated. The length of time that the individual securities have been in a continuous unrealized loss position is not a factor in determining credit impairment with the adoption of CECL. December 31, 2022 Less than 12 months 12 months or longer Total Description of Number Fair Gross Number Fair Gross Number Fair Gross (Dollars in thousands) U.S. Treasury securities 1 $ 3,886 $ (104) — $ — $ — 1 $ 3,886 $ (104) Agency securities* 1 3,867 (133) — — — 1 3,867 (133) Collateralized mortgage obligations* 61 150,419 (14,888) 59 643,280 (138,954) 120 793,699 (153,842) Mortgage-backed securities: Residential* 23 55,645 (5,616) 42 397,532 (85,291) 65 453,177 (90,907) Commercial* 29 172,963 (12,156) 26 195,324 (36,798) 55 368,287 (48,954) Asset-backed securities 3 21,836 (716) 15 125,768 (5,219) 18 147,604 (5,935) Corporate securities 1 3,401 (600) 5 15,456 (3,894) 6 18,857 (4,494) Municipal securities 31 76,942 (3,207) 32 65,730 (10,506) 63 142,672 (13,713) Total 150 $ 488,959 $ (37,420) 179 $ 1,443,090 $ (280,662) 329 $ 1,932,049 $ (318,082) December 31, 2021 Less than 12 months 12 months or longer Total Description of Number Fair Gross Number Fair Gross Number Fair Gross (Dollars in thousands) Collateralized mortgage obligations* 39 $ 757,799 $ (15,445) 2 $ 37,438 $ (1,025) 41 $ 795,237 $ (16,470) Mortgage-backed securities: Residential* 49 603,372 (9,371) 13 75,211 (2,503) 62 678,583 (11,874) Commercial* 24 214,384 (3,339) 4 57,656 (2,021) 28 272,040 (5,360) Asset-backed securities 13 115,885 (124) — — — 13 115,885 (124) Corporate securities 4 14,067 (331) 1 4,288 (713) 5 18,355 (1,044) Municipal securities 23 59,403 (767) — — — 23 59,403 (767) Total 152 $ 1,764,910 $ (29,377) 20 $ 174,593 $ (6,262) 172 $ 1,939,503 $ (35,639) __________________________________ * Investments in U.S. Government agency and U.S. Government sponsored enterprises

Loans Receivable and Allowanc_2

Loans Receivable and Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2022
Receivables [Abstract]
Summary of Loans Receivable by Major Category	The following is a summary of loans receivable by major category: December 31, 2022 2021 (Dollars in thousands) Loan portfolio composition Real estate loans: Residential $ 76,045 $ 69,199 Commercial 9,170,784 8,816,080 Construction 167,751 220,652 Total real estate loans 9,414,580 9,105,931 Commercial business * 5,109,532 4,208,674 Residential mortgage 846,080 579,626 Consumer and other 33,348 58,512 Loans receivable 15,403,540 13,952,743 Allowance for credit losses (162,359) (140,550) Loans receivable, net of allowance for credit losses $ 15,241,181 $ 13,812,193 __________________________________ * Commercial business loans as of December 31, 2022 and 2021 include $1.9 million and $228.1 million, respectively, in SBA Paycheck Protection Program loans
Allowance for Credit Losses by Portfolio Segment	The tables below detail the activity in the allowance for credit losses (“ACL”) by portfolio segment for the years ended December 31, 2022 and 2021, and 2020. Recoveries for the year ended December 31, 2022 included $17.3 million in recoveries from a single lending relationship that had $29.6 million in charge offs during the year 2021. Charge offs for the year 2021 included $26.2 million in charge offs related to the sale of $275.3 million in loans with elevated credit risk. Real Estate Commercial Business Residential Mortgage Consumer and Other Total (Dollars in thousands) December 31, 2022 Balance, beginning of period $ 108,440 $ 27,811 $ 3,316 $ 983 $ 140,550 Provision (credit) for credit losses (27,451) 31,360 5,626 65 9,600 Loans charged off (6,803) (5,160) (22) (404) (12,389) Recoveries of charge offs 21,698 2,861 — 39 24,598 Balance, end of period $ 95,884 $ 56,872 $ 8,920 $ 683 $ 162,359 December 31, 2021 Balance, beginning of period $ 162,196 $ 39,155 $ 4,227 $ 1,163 $ 206,741 Provision (credit) for credit losses (2,051) (9,982) 12 (179) (12,200) Loans charged off (57,427) (3,558) (923) (328) (62,236) Recoveries of charge offs 5,722 2,196 — 327 8,245 Balance, end of period $ 108,440 $ 27,811 $ 3,316 $ 983 $ 140,550 December 31, 2020 Balance, beginning of period $ 53,593 $ 33,032 $ 5,925 $ 1,594 $ 94,144 CECL day 1 adoption 27,791 (1,022) (543) (26) $ 26,200 Provision (credit) for credit losses 87,619 7,776 (1,155) 760 95,000 Loans charged off (8,658) (6,157) — (1,211) (16,026) Recoveries of charge offs 1,851 5,526 — 46 7,423 Balance, end of period $ 162,196 $ 39,155 $ 4,227 $ 1,163 $ 206,741 The following tables break out the allowance for credit losses and loan balance by measurement methodology at December 31, 2022 and 2021: December 31, 2022 Real Estate Commercial Business Residential Mortgage Consumer and Other Total (Dollars in thousands) Allowance for credit losses: Individually evaluated $ 870 $ 2,941 $ 24 $ 21 $ 3,856 Collectively evaluated 95,014 53,931 8,896 662 158,503 Total $ 95,884 $ 56,872 $ 8,920 $ 683 $ 162,359 Loans outstanding: Individually evaluated $ 43,461 $ 12,477 $ 9,775 $ 436 $ 66,149 Collectively evaluated 9,371,119 5,097,055 836,305 32,912 15,337,391 Total $ 9,414,580 $ 5,109,532 $ 846,080 $ 33,348 $ 15,403,540 December 31, 2021 Real Estate Commercial Business Residential Mortgage Consumer and Other Total (Dollars in thousands) Allowance for credit losses: Individually evaluated $ 2,025 $ 3,056 $ 11 $ 23 $ 5,115 Collectively evaluated 106,415 24,755 3,305 960 135,435 Total $ 108,440 $ 27,811 $ 3,316 $ 983 $ 140,550 Loans outstanding: Individually evaluated $ 83,347 $ 19,407 $ 3,470 $ 409 $ 106,633 Collectively evaluated 9,022,584 4,189,267 576,156 58,103 13,846,110 Total $ 9,105,931 $ 4,208,674 $ 579,626 $ 58,512 $ 13,952,743 The following tables present a breakdown of loans by recorded ACL, broken out by loans evaluated individually and collectively at December 31, 2022 and 2021: December 31, 2022 Real Estate – Real Estate – Real Estate – Commercial Residential Consumer Total (Dollars in thousands) Individually evaluated loans $ — $ 43,461 $ — $ 12,477 $ 9,775 $ 436 $ 66,149 ACL on individually evaluated loans $ — $ 870 $ — $ 2,941 $ 24 $ 21 $ 3,856 Individually evaluated loans ACL coverage N/A 2.00 % N/A 23.57 % 0.25 % 4.82 % 5.83 % Collectively evaluated loans $ 76,045 $ 9,127,323 $ 167,751 $ 5,097,055 $ 836,305 $ 32,912 $ 15,337,391 ACL on collectively evaluated loans $ 1,014 $ 92,947 $ 1,053 $ 53,931 $ 8,896 $ 662 $ 158,503 Collectively evaluated loans ACL coverage 1.33 % 1.02 % 0.63 % 1.06 % 1.06 % 2.01 % 1.03 % Total loans $ 76,045 $ 9,170,784 $ 167,751 $ 5,109,532 $ 846,080 $ 33,348 $ 15,403,540 Total ACL $ 1,014 $ 93,817 $ 1,053 $ 56,872 $ 8,920 $ 683 $ 162,359 Total ACL to total loans 1.33 % 1.02 % 0.63 % 1.11 % 1.05 % 2.05 % 1.05 % December 31, 2021 Real Estate – Real Estate – Real Estate – Commercial Residential Consumer Total (Dollars in thousands) Individually evaluated loans $ — $ 83,347 $ — $ 19,407 $ 3,470 $ 409 $ 106,633 ACL on individually evaluated loans $ — $ 2,025 $ — $ 3,056 $ 11 $ 23 $ 5,115 Individually evaluated loans ACL coverage N/A 2.43 % N/A 15.75 % 0.32 % 5.62 % 4.80 % Collectively evaluated loans $ 69,199 $ 8,732,733 $ 220,652 $ 4,189,267 $ 576,156 $ 58,103 $ 13,846,110 ACL on collectively evaluated loans $ 729 $ 104,145 $ 1,541 $ 24,755 $ 3,305 $ 960 $ 135,435 Collectively evaluated loans ACL coverage 1.05 % 1.19 % 0.70 % 0.59 % 0.57 % 1.65 % 0.98 % Total loans $ 69,199 $ 8,816,080 $ 220,652 $ 4,208,674 $ 579,626 $ 58,512 $ 13,952,743 Total ACL $ 729 $ 106,170 $ 1,541 $ 27,811 $ 3,316 $ 983 $ 140,550 Total ACL to total loans 1.05 % 1.20 % 0.70 % 0.66 % 0.57 % 1.68 % 1.01 %
Schedule of Nonaccrual Loans and Loans Past Due 90 or More Days And Still on Accrual Status	The tables below represent the amortized cost of nonaccrual loans and loans past due 90 or more days and still on accrual status by class of loans and broken out by loans with a recorded ACL and those without a recorded ACL as of December 31, 2022 and 2021. December 31, 2022 Nonaccrual with No ACL Nonaccrual with an ACL Total Nonaccrual (1) Accruing Loans Past Due 90 or More Days (Dollars in thousands) Real estate – residential $ — $ — $ — $ — Real estate – commercial Retail 17,635 1,007 18,642 — Hotel & motel 8,939 347 9,286 — Gas station & car wash 2,134 124 2,258 — Mixed use 781 186 967 — Industrial & warehouse 109 727 836 — Other 184 1,742 1,926 — Real estate – construction — — — — Commercial business 1,618 4,002 5,620 336 Residential mortgage 5,959 3,816 9,775 — Consumer and other — 377 377 65 Total $ 37,359 $ 12,328 $ 49,687 $ 401 December 31, 2021 Nonaccrual with No ACL Nonaccrual with an ACL Total Nonaccrual (1) Accruing Loans Past Due 90 or More Days (Dollars in thousands) Real estate – residential $ — $ — $ — $ — Real estate – commercial Retail 7,586 2,604 10,190 — Hotel & motel 5,471 6,564 12,035 — Gas station & car wash 575 1,267 1,842 — Mixed use 5,307 1,412 6,719 — Industrial & warehouse 687 1,897 2,584 — Other 1,233 5,153 6,386 215 Real estate – construction — — — — Commercial business 4,726 6,299 11,025 1,494 Residential mortgage 275 3,195 3,470 — Consumer and other — 365 365 422 Total $ 25,860 $ 28,756 $ 54,616 $ 2,131 __________________________________
Amortized Cost Basis of Collateral-Dependent Loans	The following table presents the amortized cost of collateral dependent loans as of December 31, 2022 and 2021: December 31, 2022 December 31, 2021 Real Estate Collateral Other Collateral Total Real Estate Collateral Other Collateral Total (Dollars in thousands) Real estate – residential $ — $ — $ — $ — $ — $ — Real estate – commercial 35,523 — 35,523 65,590 — 65,590 Real estate – construction — — — — — — Commercial business 1,618 2,743 4,361 1,767 6,615 8,382 Residential mortgage 5,959 — 5,959 — — — Consumer and other — — — — — — Total $ 43,100 $ 2,743 $ 45,843 $ 67,357 $ 6,615 $ 73,972
Aging of Past Due Loans	The following table presents the amortized cost of past due loans, including nonaccrual loans past due 30 or more days, by the number of days past due as of December 31, 2022 and 2021 by class of loans: December 31, 2022 December 31, 2021 30-59 Days 60-89 Days 90 or More Days Total 30-59 Days 60-89 Days 90 or More Days Total (Dollars in thousands) Real estate – residential $ 1,266 $ — $ — $ 1,266 $ — $ — $ — $ — Real estate – commercial Retail — 1,617 521 2,138 1,250 927 9,167 11,344 Hotel & motel 359 564 3,503 4,426 9,320 4,148 4,760 18,228 Gas station & car wash 582 124 — 706 575 — 832 1,407 Mixed use — — 781 781 1,124 — 5,625 6,749 Industrial & warehouse 85 89 268 442 247 — 785 1,032 Other — 333 621 954 1,198 6,522 3,185 10,905 Real estate – construction — — — — — — — — Commercial business 3,258 18 2,137 5,413 1,792 2,362 6,482 10,636 Residential mortgage 2,310 — 5,106 7,416 14,177 — 3,099 17,276 Consumer and other 617 44 308 969 59 21 787 867 Total Past Due $ 8,477 $ 2,789 $ 13,245 $ 24,511 $ 29,742 $ 13,980 $ 34,722 $ 78,444
Financing Receivable Credit Quality Indicators	The following table presents the amortized cost basis of loans receivable by class, credit quality indicator, and year of origination as of December 31, 2022 and 2021. December 31, 2022 Term Loan by Origination Year Revolving Loans Total 2022 2021 2020 2019 2018 Prior (Dollars in thousands) Real Estate - Residential Pass / not rated $ 19,256 $ 23,505 $ 9,691 $ 9,017 $ 3,964 $ 5,397 $ 3,995 $ 74,825 Special mention — — — — — — — — Substandard — — — — 661 559 — 1,220 Doubtful / loss — — — — — — — — Subtotal $ 19,256 $ 23,505 $ 9,691 $ 9,017 $ 4,625 $ 5,956 $ 3,995 $ 76,045 Real Estate - Commercial Pass / not rated $ 2,395,805 $ 2,140,650 $ 1,299,144 $ 1,043,970 $ 1,006,454 $ 1,053,970 $ 101,190 $ 9,041,183 Special mention — 14,622 7,301 6,001 13,565 15,912 202 57,603 Substandard — 8,240 1,736 7,881 9,589 44,552 — 71,998 Doubtful / loss — — — — — — — — Subtotal $ 2,395,805 $ 2,163,512 $ 1,308,181 $ 1,057,852 $ 1,029,608 $ 1,114,434 $ 101,392 $ 9,170,784 Real Estate - Construction Pass / not rated $ 6,570 $ 29,918 $ 63,192 $ 23,418 $ 8,135 $ 4,900 $ 89 $ 136,222 Special mention — — — 14,425 — 10,834 — 25,259 Substandard — — — — — 6,270 — 6,270 Doubtful / loss — — — — — — — — Subtotal $ 6,570 $ 29,918 $ 63,192 $ 37,843 $ 8,135 $ 22,004 $ 89 $ 167,751 Commercial Business Pass / not rated $ 2,311,344 $ 1,090,034 $ 291,592 $ 298,133 $ 69,721 $ 95,531 $ 864,343 $ 5,020,698 Special mention 17,911 37,393 13,707 110 — 24 5,256 74,401 Substandard — 2,833 5,889 1,000 1,020 3,691 — 14,433 Doubtful / loss — — — — — — — — Subtotal $ 2,329,255 $ 1,130,260 $ 311,188 $ 299,243 $ 70,741 $ 99,246 $ 869,599 $ 5,109,532 Residential Mortgage Pass / not rated $ 382,935 $ 283,163 $ 1,386 $ 30,603 $ 62,976 $ 75,242 $ — $ 836,305 Special mention — — — — — — — — Substandard — 311 — 967 384 8,113 — 9,775 Doubtful / loss — — — — — — — — Subtotal $ 382,935 $ 283,474 $ 1,386 $ 31,570 $ 63,360 $ 83,355 $ — $ 846,080 Consumer and Other Pass / not rated $ 10,005 $ 723 $ 3,351 $ 223 $ 10 $ 1,420 $ 17,239 $ 32,971 Special mention — — — — — — — — Substandard — — — — — 377 — 377 Doubtful / loss — — — — — — — — Subtotal $ 10,005 $ 723 $ 3,351 $ 223 $ 10 $ 1,797 $ 17,239 $ 33,348 Total Loans Pass / not rated $ 5,125,915 $ 3,567,993 $ 1,668,356 $ 1,405,364 $ 1,151,260 $ 1,236,460 $ 986,856 $ 15,142,204 Special mention 17,911 52,015 21,008 20,536 13,565 26,770 5,458 157,263 Substandard — 11,384 7,625 9,848 11,654 63,562 — 104,073 Doubtful / loss — — — — — — — — Total $ 5,143,826 $ 3,631,392 $ 1,696,989 $ 1,435,748 $ 1,176,479 $ 1,326,792 $ 992,314 $ 15,403,540 December 31, 2021 Term Loan by Origination Year Revolving Loans Total 2021 2020 2019 2018 2017 Prior (Dollars in thousands) Real Estate - Residential Pass / not rated $ 26,093 $ 10,471 $ 11,442 $ 4,952 $ 2,987 $ 7,260 $ 4,403 $ 67,608 Special mention — — — 534 — 924 — 1,458 Substandard — — — 133 — — — 133 Doubtful / loss — — — — — — — — Subtotal $ 26,093 $ 10,471 $ 11,442 $ 5,619 $ 2,987 $ 8,184 $ 4,403 $ 69,199 Real Estate - Commercial Pass / not rated $ 2,451,662 $ 1,415,909 $ 1,252,851 $ 1,238,425 $ 883,790 $ 1,086,182 $ 89,501 $ 8,418,320 Special mention 5,553 8,882 39,567 20,203 27,204 73,090 5,970 180,469 Substandard 7,436 7,718 17,533 25,330 53,000 105,995 279 217,291 Doubtful / loss — — — — — — — — Subtotal $ 2,464,651 $ 1,432,509 $ 1,309,951 $ 1,283,958 $ 963,994 $ 1,265,267 $ 95,750 $ 8,816,080 Real Estate - Construction Pass / not rated $ 16,545 $ 67,628 $ 32,044 $ 32,908 $ 8,292 $ 5,685 $ 89 $ 163,191 Special mention — — — 45,996 5,074 6,391 — 57,461 Substandard — — — — — — — — Doubtful / loss — — — — — — — — Subtotal $ 16,545 $ 67,628 $ 32,044 $ 78,904 $ 13,366 $ 12,076 $ 89 $ 220,652 Commercial Business Pass / not rated $ 1,755,104 $ 431,145 $ 461,460 $ 98,812 $ 53,629 $ 70,294 $ 1,299,372 $ 4,169,816 Special mention 1,379 523 4,780 2,897 550 5,083 2,594 17,806 Substandard 3,796 941 2,308 1,651 3,803 3,461 5,092 21,052 Doubtful / loss — — — — — — — — Subtotal $ 1,760,279 $ 432,609 $ 468,548 $ 103,360 $ 57,982 $ 78,838 $ 1,307,058 $ 4,208,674 Residential Mortgage Pass / not rated $ 282,191 $ 1,420 $ 40,377 $ 112,743 $ 85,446 $ 53,979 $ — $ 576,156 Special mention — — — — — — — — Substandard 275 — 128 394 541 2,132 — 3,470 Doubtful / loss — — — — — — — — Subtotal $ 282,466 $ 1,420 $ 40,505 $ 113,137 $ 85,987 $ 56,111 $ — $ 579,626 Consumer and Other Pass / not rated $ 19,203 $ 5,347 $ 1,783 $ 1,699 $ 1,769 $ 6,165 $ 22,095 $ 58,061 Special mention — — — — — — — — Substandard — — — — — 451 — 451 Doubtful / loss — — — — — — — — Subtotal $ 19,203 $ 5,347 $ 1,783 $ 1,699 $ 1,769 $ 6,616 $ 22,095 $ 58,512 Total Loans Pass / not rated $ 4,550,798 $ 1,931,920 $ 1,799,957 $ 1,489,539 $ 1,035,913 $ 1,229,565 $ 1,415,460 $ 13,453,152 Special mention 6,932 9,405 44,347 69,630 32,828 85,488 8,564 257,194 Substandard 11,507 8,659 19,969 27,508 57,344 112,039 5,371 242,397 Doubtful / loss — — — — — — — — Total $ 4,569,237 $ 1,949,984 $ 1,864,273 $ 1,586,677 $ 1,126,085 $ 1,427,092 $ 1,429,395 $ 13,952,743 For the years ended December 31, 2022 and 2021, there were no revolving loans converted to term loans.
Loans Sold From Loans Held For Investment	The breakdown of loans by type that were reclassified from held for investment to held for sale for the years ended December 31, 2022, 2021, and 2020 are presented in the following table: Year Ended December 31, 2022 2021 2020 Transfer of loans held for investment to held for sale (Dollars in thousands) Real estate - commercial $ 257,317 $ 365,426 $ — Commercial business 54,218 100,154 — Residential mortgage — 7,018 — Consumer — — 1,243 Total $ 311,535 $ 472,598 $ 1,243
Troubled Debt Restructurings	A summary of the amortized cost of TDR loans on accrual and nonaccrual status by type of concession as of December 31, 2022 and 2021 is presented below: December 31, 2022 TDR Loans on Accrual Status TDR Loans on Nonaccrual Status Total TDRs Real Estate Commercial Business Residential Mortgage Other Real Estate Commercial Business Residential Mortgage Other (Dollars in thousands) Payment concession $ 5,404 $ 501 $ — $ — $ 20,193 $ 171 $ — $ — $ 26,269 Maturity / amortization concession 2,190 6,175 — 280 101 2,245 — 87 11,078 Rate concession 2,195 186 — — — 1,398 — — 3,779 Total $ 9,789 $ 6,862 $ — $ 280 $ 20,294 $ 3,814 $ — $ 87 $ 41,126 December 31, 2021 TDR Loans on Accrual Status TDR Loans on Nonaccrual Status Total Real Estate Commercial Business Residential Mortgage Other Real Estate Commercial Business Residential Mortgage Other (Dollars in thousands) Payment concession $ 23,196 $ 790 $ — $ 16 $ 7,533 $ 420 $ — $ — $ 31,955 Maturity / amortization concession 15,449 7,284 — 183 269 3,109 — 117 26,411 Rate concession 5,161 339 — — 234 1,413 — — 7,147 Total $ 43,806 $ 8,413 $ — $ 199 $ 8,036 $ 4,942 $ — $ 117 $ 65,513 The following tables present the amortized cost of loans classified as TDR during the years ended December 31, 2022, 2021, and 2020 by class of loans. Year Ended December 31, 2022 2021 2020 Number of Loans Balance Number of Loans Balance Number of Loans Balance (Dollars in thousands) Real estate – residential — $ — — $ — — $ — Real estate – commercial Retail — — 5 24,169 3 1,589 Hotel & motel 1 1,932 — — — — Gas station & car wash — — 1 575 2 501 Mixed use — — — — 2 1,215 Industrial & warehouse — — 1 506 1 256 Other — — — — 2 2,722 Real estate – construction — — — — — — Commercial business — — 3 309 6 1,620 Residential mortgage — — — — — — Consumer and other — — 2 13 9 113 Total 1 $ 1,932 12 $ 25,572 25 $ 8,016
Summary of Troubled Debt Restructurings with Subsequent Payment Default	The following tables present the amortized cost balance of loans modified as TDRs within the previous twelve months ended December 31, 2022, 2021, and 2020 that subsequently had payment defaults during the years ended December 31, 2022, 2021, and 2020: For the Year Ended December 31, 2022 2021 2020 Number of Loans Balance Number of Loans Balance Number of Loans Balance (Dollars in thousands) Real estate – residential — $ — — $ — — $ — Real estate – commercial Retail — — 3 5,906 1 478 Hotel & motel — — — — — — Gas station & car wash — — 1 575 1 464 Mixed Use — — — — 2 1,215 Industrial & warehouse — — — — — — Other — — — — — — Real estate – construction — — — — — — Commercial business — — 1 102 1 164 Residential mortgage — — — — — — Consumer and other — — 2 13 5 30 Total — $ — 7 $ 6,596 10 $ 2,351
interest income reversal, nonaccrual, by loan segment	The following table presents interest income reversals, due to loans being placed on nonaccrual status, by loan segment for the years ended December 31, 2022 and 2021: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Real estate $ 1,906 $ 3,102 $ 1,047 Commercial business 307 62 78 Residential mortgage 309 17 — Consumer and other 1 3 3 Total $ 2,523 $ 3,184 $ 1,128

Goodwill, Intangible Assets, _2

Goodwill, Intangible Assets, and Servicing Assets (Tables)	12 Months Ended
	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	December 31, 2022 December 31, 2021 Core Deposit Intangibles Related To: Amortization Period Gross Accumulated Carrying Amount Accumulated Carrying Amount (Dollars in thousands) Foster Bankshares acquisition 10 years $ 2,763 $ (2,668) $ 95 $ (2,504) $ 259 Wilshire Bancorp acquisition 10 years 18,138 (12,507) 5,631 (10,726) 7,412 Total $ 20,901 $ (15,175) $ 5,726 $ (13,230) $ 7,671

Property, Plant, and Equipment

Property, Plant, and Equipment (Tables)	12 Months Ended
	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	The following table provides information regarding the premises and equipment at December 31, 2022 and 2021: December 31, 2022 2021 (Dollars in thousands) Land $ 11,244 $ 11,244 Building and improvements 24,191 24,018 Furniture, fixtures, and equipment 32,347 28,829 Leasehold improvements 29,061 28,201 Vehicles 123 123 Software/License 17,532 14,341 Total premises and equipment, gross 114,498 106,756 Less: Accumulated depreciation and amortization (67,639) (61,089) Total premises and equipment, net $ 46,859 $ 45,667

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2022
Leases [Abstract]
Summary of Net Lease Cost and Other Information	The table below summarizes the Company’s net lease cost: Year Ended December 31, 2022 2021 (Dollars in thousands) Operating lease cost $ 15,455 $ 15,487 Variable lease cost 4,617 3,205 Sublease income (687) (456) Net lease cost $ 19,385 $ 18,236 The table below summarizes supplemental balance sheet information related to operating leases: December 31, 2022 2021 (Dollars in thousands) Operating lease right-of-use assets $ 55,034 $ 52,701 Current portion of long-term lease liabilities 13,769 12,678 Long-term lease liabilities 45,319 44,625 Weighted-average remaining lease term - operating leases 4.7 years 5.2 years Weighted-average discount rate - operating leases 2.44 % 2.43 %
Summary of Maturity of Remaining Lease Liabilities	The table below summarizes the maturity of remaining lease liabilities: December 31, 2022 (Dollars in thousands) 2023 $ 15,014 2024 13,937 2025 12,187 2026 11,431 2027 5,918 2028 and thereafter 4,322 Total lease payments 62,809 Less: imputed interest 3,721 Total lease obligations $ 59,088

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2022
Deposits [Abstract]
Time Deposit Maturities	At December 31, 2022, the scheduled maturities for time deposits were as follows: December 31, 2022 (Dollars in thousands) Scheduled maturities in: 2023 $ 4,973,023 2024 14,861 2025 1,121 2026 550 2027 505 2028 and thereafter — Total $ 4,990,060
Time Deposit Maturities, More Than Two Hundred Thousand	The following table presents the maturity schedules of time deposits in amounts of more than $250 thousand as of December 31, 2022: December 31, 2022 (Dollars in thousands) Three months or less $ 242,755 Over three months through six months 509,744 Over six months through twelve months 1,629,667 Over twelve months 3,407 Total $ 2,385,573
Schedule of Interest Expense on Deposits	Interest expense on deposits for the periods indicated is summarized as follows: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Money market and NOW $ 68,961 $ 22,867 $ 34,529 Savings deposits 3,802 3,623 3,475 Time deposits 42,076 15,521 72,365 Total deposit interest expense $ 114,839 $ 42,011 $ 110,369

Subordinated Debentures and C_2

Subordinated Debentures and Convertible Notes (Tables)	12 Months Ended
	Dec. 31, 2022
Subordinated Borrowings [Abstract]
Summary of Trust Preferred Securities and Debentures	The following table is a summary of trust preferred securities and Debentures at December 31, 2022: Issuance Trust Issuance Date Trust Preferred Security Amount Carrying Value of Debentures Rate Type Current Rate Maturity Date (Dollars in thousands) Nara Capital Trust III 06/05/2003 $ 5,000 $ 5,155 Variable 7.919% 06/15/2033 Nara Statutory Trust IV 12/22/2003 5,000 5,155 Variable 6.929% 01/07/2034 Nara Statutory Trust V 12/17/2003 10,000 10,310 Variable 7.688% 12/17/2033 Nara Statutory Trust VI 03/22/2007 8,000 8,248 Variable 6.419% 06/15/2037 Center Capital Trust I 12/30/2003 18,000 14,937 Variable 6.929% 01/07/2034 Wilshire Trust II 03/17/2005 20,000 16,435 Variable 6.528% 03/17/2035 Wilshire Trust III 09/15/2005 15,000 11,722 Variable 6.169% 09/15/2035 Wilshire Trust IV 07/10/2007 25,000 18,932 Variable 6.149% 09/15/2037 Saehan Capital Trust I 03/30/2007 20,000 15,671 Variable 6.350% 06/30/2037 Total $ 126,000 $ 106,565
Convertible Debt	The value of the convertible notes at issuance and the carrying value as of December 31, 2022, 2021 and 2020 are presented in the tables below: Capitalization Gross December 31, 2022 Total Capitalization Carrying Amount (Dollars in thousands) Convertible notes principal balance $ 217,500 $ — $ 217,500 Issuance costs to be capitalized 5 years (4,119) 3,767 (352) Carrying balance of convertible notes $ 213,381 $ 3,767 $ 217,148 Capitalization Gross December 31, 2021 Total Capitalization Carrying Amount (Dollars in thousands) Convertible notes principal balance $ 217,500 $ — $ 217,500 Issuance costs to be capitalized 5 years (4,119) 2,828 (1,291) Carrying balance of convertible notes $ 213,381 $ 2,828 $ 216,209 Amortization/ Capitalization Gross December 31, 2020 Accumulated Amortization / Capitalization Carrying Amount (Dollars in thousands) Convertible notes principal balance $ 217,500 $ — $ 217,500 Discount 5 years (21,880) 10,951 (10,929) Issuance costs to be capitalized 5 years (4,119) 2,113 (2,006) Carrying balance of convertible notes $ 191,501 $ 13,064 $ 204,565

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The following presents a summary of income tax provision follows for the years ended December 31: Current Deferred Total (Dollars in thousands) 2022 Federal $ 52,676 $ (6,366) $ 46,310 State 34,050 (2,589) 31,461 $ 86,726 $ (8,955) $ 77,771 2021 Federal $ 28,382 $ 12,599 $ 40,981 State 22,692 7,027 29,719 $ 51,074 $ 19,626 $ 70,700 2020 Federal $ 28,284 $ (11,079) $ 17,205 State 20,490 (6,919) 13,571 $ 48,774 $ (17,998) $ 30,776
Schedule of Effective Income Tax Rate Reconciliation	A reconciliation of the difference between the federal statutory income tax rate and the effective tax rate is shown in the following table for the years indicated: Year Ended December 31, 2022 2021 2020 Statutory tax rate 21.00 % 21.00 % 21.00 % State taxes-net of federal tax effect 8.58 % 8.59 % 8.56 % CRA investment tax credit (2.99) % (3.75) % (7.34) % Bank owned life insurance (0.22) % (0.17) % (0.05) % Tax exempt municipal bonds and loans (0.26) % (0.17) % (0.38) % State tax rate change 0.15 % (0.04) % (2.76) % Changes in uncertain tax positions (0.23) % 0.07 % 1.63 % Other 0.24 % 0.15 % 0.97 % Effective income tax rate 26.27 % 25.68 % 21.63 %
Schedule of Deferred Tax Assets and Liabilities	Deferred tax assets and liabilities at December 31, 2022 and 2021 were comprised of the following: December 31, 2022 2021 (Dollars in thousands) Deferred tax assets: Statutory bad debt deduction less than financial statement provision $ 53,225 $ 46,367 Net operating loss carry-forward 1,396 1,552 Investment security provision 469 469 State tax deductions 5,210 3,403 Accrued compensation 45 86 Deferred compensation 107 103 Mark to market on loans held for sale 3 1,721 Nonaccrual loan interest 4,044 4,290 Other real estate owned 455 421 Non-qualified stock option and restricted share expense 4,322 3,122 Lease liabilities 18,751 18,209 Unrealized loss on securities available for sale 96,319 4,583 Other 8,178 5,782 Total deferred tax assets $ 192,524 $ 90,108 Deferred tax liabilities: Purchase accounting fair value adjustment $ (6,583) $ (5,978) Depreciation (293) (6) FHLB stock dividends (332) (257) Deferred loan costs (9,983) (10,615) State taxes deferred and other (3,875) (3,332) Prepaid expenses (1,677) (942) Amortization of intangibles (1,908) (2,513) ROU asset (17,464) (16,746) Total deferred tax liabilities $ (42,115) $ (40,389) Net deferred tax assets $ 150,409 $ 49,719
Summary of Operating Loss Carryforwards	A summary of the Company’s net operating loss carry-forwards as of December 31, 2022 and 2021 is as follows: Federal State Remaining Expires Annual Remaining Expires Annual (Dollars in thousands) 2022 Saehan Bank (acquired by Wilshire) $ 1,809 2030 $ 226 $ 2,261 2032 $ 226 Pacific International Bank 3,989 2032 420 — N/A — Total $ 5,798 $ 646 $ 2,261 $ 226 2021 Saehan Bank (acquired by Wilshire) $ 2,035 2030 $ 226 $ 2,488 2032 $ — Pacific International Bank 4,409 2032 420 — N/A — Total $ 6,444 $ 646 $ 2,488 $ —
Schedule of Unrecognized Tax Benefits Roll Forward	A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2022 and 2021 is as follows: Year Ended December 31, 2022 2021 (Dollars in thousands) Balance at January 1, $ 3,278 $ 2,750 Additions based on tax positions related to prior years 434 528 Expiration of statute of limitations (761) — Balance at December 31, $ 2,951 $ 3,278

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Summary of Stock Option Activity Under the Plan	The following is a summary of the Company’s stock option activity for the year ended December 31, 2022: Number of Shares Weighted-Average Exercise Price Per Share Weighted-Average Aggregate Intrinsic Value Outstanding - January 1, 2022 814,877 $ 15.17 Granted — — Exercised (105,510) 5.02 Expired (60,000) 17.18 Forfeited — — Outstanding - December 31, 2022 649,367 $ 16.63 2.92 $ — Options exercisable - December 31, 2022 649,367 $ 16.63 2.92 $ —
Summary of Restricted Stock and Performance Unit Activity Under the Plan	The following is a summary of the Company’s restricted stock and performance unit activity for the year ended December 31, 2022: Number of Shares Weighted-Average Grant Date Fair Value Outstanding (unvested) - January 1, 2022 1,561,197 $ 12.08 Granted 1,007,942 15.85 Vested (634,514) 12.65 Forfeited (174,252) 13.55 Outstanding (unvested) - December 31, 2022 1,760,373 $ 13.89
Schedule of Share-based Compensation, Estimated Annual Expense	The estimated annual stock-based compensation expense as of December 31, 2022 for each of the succeeding years is indicated in the table below: Stock Based (Dollars in thousands) For the year ending December 31: 2023 $ 13,654 2024 9,796 2025 3,510 2026 343 2027 — Total $ 27,303

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments	Commitments at December 31, 2022 and 2021 are summarized as follows: December 31, 2022 2021 (Dollars in thousands) Commitments to extend credit $ 2,856,263 $ 2,329,421 Standby letters of credit 132,538 126,137 Other letters of credit 22,376 56,333 Commitments to fund investments in affordable housing partnerships 11,792 9,514

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	Assets and liabilities measured at fair value on a recurring basis are summarized below: Fair Value Measurements at the End of December 31, 2022 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Assets: Investment securities available for sale: U.S. Treasury securities $ 3,886 $ 3,886 $ — $ — U.S. Government agency and U.S. Government sponsored enterprises: Agency securities 3,867 — 3,867 — Collateralized mortgage obligations 793,699 — 793,699 — Mortgage-backed securities: Residential 453,177 — 453,177 — Commercial 368,287 — 368,287 — Asset-backed securities 147,604 — 147,604 — Corporate securities 18,857 — 18,857 — Municipal securities 182,752 — 181,809 943 Equity investments with readily determinable fair value 4,303 4,303 — — Interest rate swaps 73,389 — 73,389 — Mortgage banking derivatives 29 — 29 — Other derivatives 25,462 — 25,462 — Liabilities: Interest rate swaps 73,389 — 73,389 — Mortgage banking derivatives 23 — 23 — Other derivatives 2,160 — 2,128 32 Fair Value Measurements at the End of December 31, 2021 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Assets: Investment securities available for sale: U.S. Government agency and U.S. Government sponsored enterprises: Collateralized mortgage obligations $ 1,026,430 $ — $ 1,026,430 $ — Mortgage-backed securities: Residential 759,224 — 759,224 — Commercial 599,402 — 599,402 — Asset-backed securities 153,451 — 153,451 — Corporate securities 22,484 — 22,484 — Municipal securities 105,284 — 104,246 1,038 Equity investments with readily determinable fair value 26,823 26,823 — — Interest rate swaps 17,907 — 17,907 — Mortgage banking derivatives 247 — 247 — Other derivatives 2,291 — 2,291 — Liabilities: Interest rate swaps 17,907 — 17,907 — Mortgage banking derivatives 76 — 76 — Other derivatives 93 — — 93
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The table below presents a reconciliation and income statement classification of gains (losses) for the municipal security and risk participation agreements measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the year ended December 31, 2022 and 2021: Year Ended December 31, 2022 2021 (Dollars in thousands) Municipal securities: Beginning Balance $ 1,038 $ 1,022 Change in fair value included in other comprehensive (loss) income (95) 16 Ending Balance $ 943 $ 1,038 Risk participation agreements: Beginning Balance $ 93 $ 398 Change in fair value included in expense (61) (305) Ending Balance $ 32 $ 93
Assets Measured at Fair Value on a Non-recurring Basis	Assets measured at fair value on a non-recurring basis at December 31, 2022 and 2021 are summarized below: Fair Value Measurements at the End of December 31, 2022 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Assets: Collateral dependent loans at fair value: Real estate loans $ 807 $ — $ — $ 807 Commercial business 2,744 — — 2,744 Loans held for sale, net 48,795 — 48,795 — OREO 1,050 — — 1,050 Fair Value Measurements at the End of December 31, 2021 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Assets: Collateral dependent loans at fair value: Real estate loans $ 12,293 $ — $ — $ 12,293 Commercial business 3,656 — — 3,656 Loans held for sale, net 26,154 — 26,154 — OREO 2,167 — — 2,167 For assets measured at fair value on a non-recurring basis, the total net losses, which include charge offs, recoveries, recorded ACL, valuations, and recognized gains and losses on sales in 2022 and 2021 are summarized below: Year Ended December 31, 2022 2021 (Dollars in thousands) Assets: Collateral dependent loans at fair value: Real estate loans $ (727) $ (1,758) Commercial business (2,526) (2,088) Loans held for sale, net (3,989) (21,074) OREO (941) (1,275)
Carrying Amounts and Estimated Fair Values of Financial Instruments	Carrying amounts and estimated fair values of financial instruments, not previously presented, at December 31, 2022 and 2021 were as follows: December 31, 2022 Carrying Amount Estimated Fair Value Fair Value Measurement Using (Dollars in thousands) Financial Assets: Cash and cash equivalents $ 506,776 $ 506,776 Level 1 Interest bearing deposits in other financial institutions 735 733 Level 2 Investment securities held to maturity 271,066 258,407 Level 2 Equity investments without readily determinable fair values 38,093 38,093 Level 2 Loans held for sale 49,245 49,248 Level 2 Loans receivable, net 15,241,181 14,745,881 Level 3 Accrued interest receivable 55,460 55,460 Level 2/3 Servicing assets, net 11,628 17,375 Level 3 Customers’ liabilities on acceptances 818 818 Level 2 Financial Liabilities: Noninterest bearing deposits $ 4,849,493 $ 4,849,493 Level 2 Saving and other interest bearing demand deposits 5,899,248 5,899,248 Level 2 Time deposits 4,990,060 5,020,093 Level 2 FHLB and FRB borrowings 865,000 867,088 Level 2 Convertible notes, net 217,148 213,937 Level 1 Subordinated debentures 106,565 107,944 Level 2 Accrued interest payable 26,668 26,668 Level 2 Acceptances outstanding 818 818 Level 2 December 31, 2021 Carrying Amount Estimated Fair Value Fair Value Measurement Using (Dollars in thousands) Financial Assets: Cash and cash equivalents $ 316,266 $ 316,266 Level 1 Interest bearing deposits in other financial institutions 12,851 12,853 Level 2 Equity investments without readily determinable fair values 31,037 31,037 Level 2 Loans held for sale 99,049 103,767 Level 2 Loans receivable, net 13,812,193 13,698,579 Level 3 Accrued interest receivable 41,842 41,842 Level 2/3 Servicing assets, net 10,418 13,500 Level 3 Customers’ liabilities on acceptances 1,521 1,521 Level 2 Financial Liabilities: Noninterest bearing deposits $ 5,751,870 $ 5,751,870 Level 2 Saving and other interest bearing demand deposits 6,500,227 6,500,227 Level 2 Time deposits 2,788,353 2,790,596 Level 2 FHLB advances 300,000 301,936 Level 2 Convertible notes, net 216,209 214,612 Level 1 Subordinated debentures 105,354 117,961 Level 2 Accrued interest payable 4,272 4,272 Level 2 Acceptances outstanding 1,521 1,521 Level 2

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Swaps Related to Hedging Program
Schedule of Derivative Instruments	The table below presents the fair value of the Company’s derivative financial instruments as of December 31, 2022 and 2021. The Company’s derivative assets and derivative liabilities are located within Other assets and Other liabilities, respectively, on the Company’s Consolidated Balance Sheets. December 31, 2022 Notional Fair Value Other Assets Other Liabilities (Dollars in thousands) Derivatives designated as cash flow hedges Interest rate swaps $ 614,000 $ 19,773 $ 1,227 Forward interest rate swaps 111,000 5,428 — Forward interest rate collars 500,000 182 828 Total $ 1,225,000 $ 25,383 $ 2,055 Derivatives not designated as hedges Interest rate swaps with correspondent banks $ 1,013,407 $ 73,059 $ 330 Interest rate swaps with customers 1,013,407 330 73,059 Foreign exchange contracts with correspondent banks 2,359 79 — Foreign exchange contracts with customers 2,359 — 73 Risk participation agreement 134,282 — 32 Mortgage banking derivatives 2,801 29 23 Total $ 2,168,615 $ 73,497 $ 73,517 December 31, 2021 Notional Fair Value Other Assets Other Liabilities (Dollars in thousands) Derivatives designated as cash flow hedges Interest rate swaps $ 100,000 $ 2,291 $ — Total $ 100,000 $ 2,291 $ — Derivatives not designated as hedges Interest rate swaps with correspondent banks $ 588,685 $ 3,001 $ 14,906 Interest rate swaps with customers 588,685 14,906 3,001 Risk participation agreement 123,927 — 93 Mortgage banking derivatives 17,425 247 76 Total $ 1,318,722 $ 18,154 $ 18,076

Stockholders_ Equity (Tables)

Stockholders’ Equity (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table presents the changes to accumulated other comprehensive income for the years ended December 31, 2022, 2021, and 2020: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Balance at beginning of period $ (11,412) $ 32,753 $ 9,149 Unrealized net (losses) gains on securities available for sale (297,919) (65,551) 41,562 Unrealized net losses on securities available for sale transferred to held to maturity (36,576) — — Unrealized net gains (losses) on interest rate swaps used for cash flow hedge 23,062 2,893 (602) Reclassification adjustments for net losses (gains) realized in net income 253 319 (7,583) Tax effect 91,735 18,174 (9,773) Other comprehensive (loss) income, net of tax (219,445) (44,165) 23,604 Balance at end of period $ (230,857) $ (11,412) $ 32,753

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2022
Banking Regulation [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The Company’s and the Bank’s capital levels and regulatory ratios are presented in the tables below for the dates indicated and include the effects of the Company’s election to utilize the five-year transition described above: Actual Required For Capital Adequacy Purposes Minimum Capital Adequacy Required To Be Well Capitalized December 31, 2022 Amount Ratio Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) Common equity Tier 1 capital Company $ 1,799,020 10.55 % $ 767,223 4.50 % $ 1,193,459 7.00 % N/A N/A Bank $ 2,049,973 12.03 % $ 766,971 4.50 % $ 1,193,066 7.00 % $ 1,107,847 6.50 % Total capital Company $ 2,041,319 11.97 % $ 1,363,953 8.00 % $ 1,790,188 10.50 % N/A N/A Bank $ 2,189,607 12.85 % $ 1,363,504 8.00 % $ 1,789,598 10.50 % $ 1,704,380 10.00 % Tier 1 capital Company $ 1,901,685 11.15 % $ 1,022,965 6.00 % $ 1,449,200 8.50 % N/A N/A Bank $ 2,049,973 12.03 % $ 1,022,628 6.00 % $ 1,448,723 8.50 % $ 1,363,504 8.00 % Tier 1 capital Company $ 1,901,685 10.15 % $ 749,743 4.00 % N/A N/A N/A N/A Bank $ 2,049,973 10.94 % $ 749,540 4.00 % N/A N/A $ 936,925 5.00 % Actual Required For Capital Adequacy Purposes Minimum Capital Adequacy Required To Be Well Capitalized December 31, 2021 Amount Ratio Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) Common equity Tier 1 capital Company $ 1,657,754 11.03 % $ 676,633 4.50 % $ 1,052,540 7.00 % N/A N/A Bank $ 1,947,914 12.96 % $ 676,328 4.50 % $ 1,052,066 7.00 % $ 976,919 6.50 % Total capital Company $ 1,867,968 12.42 % $ 1,202,903 8.00 % $ 1,578,811 10.50 % N/A N/A Bank $ 2,056,675 13.68 % $ 1,202,361 8.00 % $ 1,578,099 10.50 % $ 1,502,952 10.00 % Tier 1 capital Company $ 1,759,207 11.70 % $ 902,178 6.00 % $ 1,278,085 8.50 % N/A N/A Bank $ 1,947,914 12.96 % $ 901,771 6.00 % $ 1,277,509 8.50 % $ 1,202,361 8.00 % Tier 1 capital Company $ 1,759,207 10.11 % $ 695,795 4.00 % N/A N/A N/A N/A Bank $ 1,947,914 11.20 % $ 695,593 4.00 % N/A N/A $ 869,491 5.00 %

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Service charges on deposit accounts and wire transfers are summarized below: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Noninterest bearing deposit account income: Monthly service charges $ 997 $ 1,065 $ 1,301 Customer analysis charges 4,602 3,219 6,765 NSF charges 2,889 2,554 3,687 Other service charges 355 345 598 Total noninterest bearing deposit account income 8,843 7,183 12,351 Interest bearing deposit account income: Monthly service charges 95 92 92 Total service fees on deposit accounts $ 8,938 $ 7,275 $ 12,443 Wire transfer fee income: Wire transfer fees $ 3,005 $ 3,082 $ 3,188 Foreign exchange fees 472 437 389 Total wire transfer fees $ 3,477 $ 3,519 $ 3,577

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2022
Earnings Per Share [Abstract]
Computation of basic and diluted EPS	The following table shows the computation of basic and diluted EPS for the years ended December 31, 2022, 2021, and 2020. Net Income Weighted-Average Shares Earnings (Dollars in thousands, except share and per share data) 2022 Basic EPS - common stock $ 218,277 119,824,970 $ 1.82 Effect of dilutive securities: Stock options, restricted stock, and ESPP shares 647,375 Diluted EPS - common stock $ 218,277 120,472,345 $ 1.81 2021 Basic EPS - common stock $ 204,572 122,321,768 $ 1.67 Effect of dilutive securities: Stock options, restricted stock, and ESPP shares 811,257 Diluted EPS - common stock $ 204,572 123,133,025 $ 1.66 2020 Basic EPS - common stock $ 111,515 123,501,401 $ 0.90 Effect of dilutive securities: Stock options, restricted stock, and ESPP shares 387,942 Diluted EPS - common stock $ 111,515 123,889,343 $ 0.90

Transfers and Servicing (Tables

Transfers and Servicing (Tables)	12 Months Ended
	Dec. 31, 2022
Transfers and Servicing [Abstract]
Schedule of Servicing Assets	The changes in servicing assets for the years ended December 31, 2022, 2021 and 2020 were as follows: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Balance at beginning of period $ 10,418 $ 12,692 $ 16,417 Additions through originations of servicing assets 5,200 2,880 2,864 Amortization (3,990) (5,154) (6,589) Balance at end of period $ 11,628 $ 10,418 $ 12,692
Schedule of Servicing Assets at Fair Value	The Company utilizes the discounted cash flow method to calculate the initial excess servicing assets. The inputs used in evaluating servicing assets for impairment at December 31, 2022 and 2021 are presented below. December 31, 2022 2021 SBA Servicing Assets: Weighted-average discount rate 8.76% 11.20% Constant prepayment rate 12.09% 14.64% Mortgage Servicing Assets: Weighted-average discount rate 11.38% 8.63% Constant prepayment rate 9.61% 9.58%

Condensed Financial Statement_2

Condensed Financial Statements of Parent Company (Tables)	12 Months Ended
	Dec. 31, 2022
Condensed Financial Information Disclosure [Abstract]
Statements of Financial Condition	The following presents the unconsolidated condensed statements of financial condition for only the parent company, Hope Bancorp, as of December 31, 2022 and 2021: STATEMENTS OF FINANCIAL CONDITION December 31, 2022 2021 (Dollars in thousands) ASSETS: Cash and cash equivalents $ 62,380 $ 21,006 Other assets 11,689 11,382 Investment in bank subsidiary 2,270,280 2,383,098 Total assets $ 2,344,349 $ 2,415,486 LIABILITIES: Convertible notes, net $ 217,148 $ 216,209 Subordinated debentures, net 106,565 105,354 Accounts payable and other liabilities 1,308 940 Total liabilities 325,021 322,503 Stockholders’ equity 2,019,328 2,092,983 Total liabilities and stockholders’ equity $ 2,344,349 $ 2,415,486
Statements of Income and Comprehensive Income	The following presents the unconsolidated condensed statements of income for only the parent company, Hope Bancorp, for the years ended December 31, 2022, 2021 and 2020: STATEMENTS OF INCOME AND COMPREHENSIVE INCOME Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Interest income $ — $ — $ — Interest expense (11,330) (9,186) (14,147) Noninterest income — — — Noninterest expense (7,212) (5,633) (5,316) Dividend from subsidiary, net 133,000 128,000 96,000 Equity in undistributed earnings of subsidiary 98,354 87,025 29,781 Income before income tax benefit 212,812 200,206 106,318 Income tax benefit 5,465 4,366 5,197 Net income 218,277 204,572 111,515 Other comprehensive (loss) income, net of tax (219,445) (44,165) 23,604 Comprehensive (loss) income $ (1,168) $ 160,407 $ 135,119
Statements of Cash Flows	The following presents the unconsolidated condensed statements of cash flows for only the parent company, Hope Bancorp, for the years ended December 31, 2022, 2021 and 2020: STATEMENTS OF CASH FLOWS Year Ended December 31, 2022 2021 2020 (Dollars in thousands) CASH FLOWS FROM OPERATING ACTIVITIES: Net income $ 218,277 $ 204,572 $ 111,515 Adjustments to reconcile net income to net cash from operating activities: Amortization and capitalization 2,150 2,115 6,250 Stock-based compensation expense 502 141 201 Change in other assets (307) (326) (1,194) Change in accounts payable and other liabilities 368 25 (440) Equity in undistributed earnings of bank subsidiary (98,354) (87,025) (29,781) Net cash from operating activities 122,636 119,502 86,551 CASH FLOWS FROM INVESTING ACTIVITIES: Proceeds from sale of equity investments — — — Net cash from investing activities — — — CASH FLOWS USED IN FINANCING ACTIVITIES: Issuance of additional stock pursuant to various stock plans 531 — — Purchase of treasury stock (14,667) (50,000) (36,180) Payments of cash dividends (67,126) (68,666) (69,182) Net cash used in financing activities (81,262) (118,666) (105,362) NET CHANGE IN CASH AND CASH EQUIVALENTS 41,374 836 (18,811) CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR 21,006 20,170 38,981 CASH AND CASH EQUIVALENTS, END OF YEAR $ 62,380 $ 21,006 $ 20,170

Quarterly Financial Data (Una_2

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2022
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	Summarized unaudited quarterly financial data follows for the three months ended: 2022 Three Months Ended, March 31 June 30 September 30 December 31 (Dollars in thousands, except per share data) Interest income $ 144,872 $ 157,824 $ 189,182 $ 224,237 Interest expense 11,696 16,286 35,996 73,716 Net interest income before provision (credit) for credit losses 133,176 141,538 153,186 150,521 Provision (credit) for credit losses (11,000) 3,200 9,200 8,200 Net interest income after provision (credit) for credit losses 144,176 138,338 143,986 142,321 Noninterest income 13,186 12,746 13,355 12,110 Noninterest expense 75,373 80,365 83,914 84,518 Income before income tax provision 81,989 70,719 73,427 69,913 Income tax provision 21,251 18,631 19,679 18,210 Net income $ 60,738 $ 52,088 $ 53,748 $ 51,703 Basic earnings per common share $ 0.51 $ 0.43 $ 0.45 $ 0.43 Diluted earnings per common share $ 0.50 $ 0.43 $ 0.45 $ 0.43 2021 Three Months Ended, March 31 June 30 September 30 December 31 (Dollars in thousands, except per share data) Interest income $ 138,293 $ 140,204 $ 142,866 $ 145,169 Interest expense 15,714 13,627 12,570 11,851 Net interest income before provision (credit) for credit losses 122,579 126,577 130,296 133,318 Provision (credit) for credit losses 3,300 (7,000) (10,000) 1,500 Net interest income after provision (credit) for credit losses 119,279 133,577 140,296 131,818 Noninterest income 8,804 11,076 10,617 13,097 Noninterest expense 70,431 73,123 75,502 74,236 Income before income tax provision 57,652 71,530 75,411 70,679 Income tax provision 13,965 17,767 19,912 19,056 Net income $ 43,687 $ 53,763 $ 55,499 $ 51,623 Basic earnings per common share $ 0.35 $ 0.44 $ 0.45 $ 0.43 Diluted earnings per common share $ 0.35 $ 0.43 $ 0.45 $ 0.43

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Accounting Policies [Abstract]
Number of portfolio segments | segment	4,000
Financing receivable, balance threshold to determine individual evaluation for impairment	$ 1,000,000
Proceeds from sales of OREO	524,000	$ 15,220,000	$ 2,458,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets	938,000	0
Other Real Estate, Valuation Adjustments	(415,000)	(1,600,000)
Servicing Asset at Amortized Cost, Other than Temporary Impairments	0	0	0
Payments of Ordinary Dividends	67,126,000	68,666,000	69,182,000
Loss contingencies for all legal claims	229,000	52,000
Cash dividends paid on common stock	$ (67,126,000)	(68,666,000)	$ (69,182,000)
Property, Plant and Equipment [Line Items]
Average Servicing Asset Cost, Percentage	0.40%
Cash Reserve Deposit Required and Made	$ 0	0
Allowance for Credit Losses, Qualitative Factor Adjustment	0.25%
COVID-19 Pandemic
Property, Plant and Equipment [Line Items]
Amount of loans modified	$ 0	$ 22,800,000
Minimum | Core Deposits
Accounting Policies [Abstract]
Amortization Period	7 years
Property, Plant and Equipment [Line Items]
Amortization Period	7 years
Minimum | Building
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	15 years
Minimum | Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum | Computer Equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	1 year
Minimum | Computer Software, Intangible Asset
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	1 year
Maximum | Core Deposits
Accounting Policies [Abstract]
Amortization Period	10 years
Property, Plant and Equipment [Line Items]
Amortization Period	10 years
Maximum | Building
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	39 years
Maximum | Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Maximum | Computer Equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Maximum | Computer Software, Intangible Asset
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years

Equity Investments - Narrative

Equity Investments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Net Investment Income [Line Items]
Equity investments with readily determinable fair value	$ 42,396	$ 57,860	$ 42,396	$ 57,860
Proceeds from Sale of Equity Securities, FV-NI			20,600
Realized gain (loss) recorded on equity investments sold			1,354	0
Equity investments without readily determinable fair values	38,100	31,037	38,100	31,037
Equity investments without readily determinable fair values, impairment	0	0	0	0
Mutual funds
Net Investment Income [Line Items]
Equity investments with readily determinable fair value	4,300	26,800	4,300	26,800
Correspondent bank stock
Net Investment Income [Line Items]
Equity investments without readily determinable fair values	370	370	370	370
CDFI investments
Net Investment Income [Line Items]
Equity investments without readily determinable fair values	1,000	1,000	1,000	1,000
CRA investments
Net Investment Income [Line Items]
Equity investments without readily determinable fair values	$ 36,700	$ 29,700	$ 36,700	$ 29,700

Equity Investments - Change in

Equity Investments - Change in Fair Value of Equity Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Net change in fair value recorded during the period on equity investments with readily determinable fair value	$ (1,917)	$ (789)
Less: Net change in fair value recorded on equity investments sold during the period	(1,354)	0
Net change in fair value on equity investments with readily determinable fair values held at the end of the period	$ (563)	$ (789)

Securities Available for Sale -

Securities Available for Sale - Summary of Securities Available for Sale (Details) - USD ($)	3 Months Ended			12 Months Ended
	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 2,289,421,000		$ 2,685,648,000	$ 2,289,421,000	$ 2,685,648,000
Gross Unrealized Gains	790,000		16,266,000	790,000	16,266,000
Gross Unrealized Losses	(318,082,000)		(35,639,000)	(318,082,000)	(35,639,000)
Fair Value	1,972,129,000		2,666,275,000	1,972,129,000	2,666,275,000
Investment securities held to maturity, fair value	258,407,000		0	258,407,000	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	12,660,000		0	12,660,000	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	1,000		0	1,000	0
Investment securities held to maturity, at amortized cost	271,066,000		0	271,066,000	0
Fair value of debt securities transferred from available for sale to held to maturity	239,000,000
Debt Securities, Transfer from available for sale to held to maturity, amortized cost, before allowance for credit losses	275,500,000
Unrealized loss on debt securities transferred from available for sale to held to maturity	(36,600,000)
Net gains on sales of securities available for sale	0		0	0	0
Unrealized gains on securities available for sale net of taxes	(230,857,000)		(11,412,000)	(230,857,000)	(11,412,000)
Accrued interest receivable for investment securities available for sale	$ 7,800,000		$ 5,600,000	$ 7,800,000	$ 5,600,000
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable		Accrued interest receivable	Accrued interest receivable	Accrued interest receivable
Debt Securities, Available For Sale and Held to Maturity, Restricted	$ 360,700,000		$ 362,200,000	$ 360,700,000	$ 362,200,000
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One	2,307,000			2,307,000
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One	2,267,000			2,267,000
Due within one year	0			0
Due within one year	0			0
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five	135,796,000			135,796,000
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five	126,723,000			126,723,000
Due after one year through five years	7,742,000			7,742,000
Due after one year through five years	7,561,000			7,561,000
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10	131,656,000			131,656,000
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10	118,654,000			118,654,000
Due after five years through ten years	28,254,000			28,254,000
Due after five years through ten years	27,241,000			27,241,000
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10	2,019,662,000			2,019,662,000
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10	1,724,485,000			1,724,485,000
Due after ten years	235,070,000			235,070,000
Due after ten years	223,605,000			223,605,000
Total	271,066,000			271,066,000
Total	258,407,000			258,407,000
Proceeds from sale of securities				0	0	$ 168,069,000
Debt Securities, Available-for-Sale, Realized Gain				0	0	7,531,000
Debt Securities, Available-for-Sale, Realized Gain (Loss)				0	0	7,531,000
Debt Securities, Available-for-Sale, Realized Loss				0	0	0
Available-for-sale Securities
Debt Securities, Available-for-sale [Line Items]
Unrealized gains on securities available for sale net of taxes	(223,100,000)		(13,000,000)	(223,100,000)	(13,000,000)
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	947,541,000		1,039,543,000	947,541,000	1,039,543,000
Gross Unrealized Gains	0		3,357,000	0	3,357,000
Gross Unrealized Losses	(153,842,000)		(16,470,000)	(153,842,000)	(16,470,000)
Fair Value	793,699,000		1,026,430,000	793,699,000	1,026,430,000
Mortgage-backed securities: Residential
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	544,084,000		769,113,000	544,084,000	769,113,000
Gross Unrealized Gains	0		1,985,000	0	1,985,000
Gross Unrealized Losses	(90,907,000)		(11,874,000)	(90,907,000)	(11,874,000)
Fair Value	453,177,000		759,224,000	453,177,000	759,224,000
Investment securities held to maturity, fair value	150,840,000		0	150,840,000	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	7,041,000		0	7,041,000	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0		0	0	0
Investment securities held to maturity, at amortized cost	157,881,000		0	157,881,000	0
Corporate securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	23,351,000		23,398,000	23,351,000	23,398,000
Gross Unrealized Gains	0		130,000	0	130,000
Gross Unrealized Losses	(4,494,000)		(1,044,000)	(4,494,000)	(1,044,000)
Fair Value	18,857,000		22,484,000	18,857,000	22,484,000
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	195,675,000		104,371,000	195,675,000	104,371,000
Gross Unrealized Gains	790,000		1,680,000	790,000	1,680,000
Gross Unrealized Losses	(13,713,000)		(767,000)	(13,713,000)	(767,000)
Fair Value	182,752,000		105,284,000	$ 182,752,000	105,284,000
Non-US Government and Agency Securities | Credit concentration risk | Stockholders' equity
Debt Securities, Available-for-sale [Line Items]
Maximum exposure to any single issuer		10%		10%
Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	153,539,000		153,564,000	$ 153,539,000	153,564,000
Gross Unrealized Gains	0		11,000	0	11,000
Gross Unrealized Losses	(5,935,000)		(124,000)	(5,935,000)	(124,000)
Fair Value	147,604,000		153,451,000	147,604,000	153,451,000
US Treasury Notes Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,990,000		0	3,990,000	0
Gross Unrealized Gains	0		0	0	0
Gross Unrealized Losses	(104,000)		0	(104,000)	0
Fair Value	3,886,000		0	3,886,000	0
Agency Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,000,000		0	4,000,000	0
Gross Unrealized Gains	0		0	0	0
Gross Unrealized Losses	(133,000)		0	(133,000)	0
Fair Value	3,867,000		0	3,867,000	0
Call Option
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Realized Gain				0	0	$ 0
Mortgage-backed securities: Commercial
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	417,241,000		595,659,000	417,241,000	595,659,000
Gross Unrealized Gains	0		9,103,000	0	9,103,000
Gross Unrealized Losses	(48,954,000)		(5,360,000)	(48,954,000)	(5,360,000)
Fair Value	368,287,000		599,402,000	368,287,000	599,402,000
Investment securities held to maturity, fair value	107,567,000		0	107,567,000	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	5,619,000		0	5,619,000	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	1,000		0	1,000	0
Investment securities held to maturity, at amortized cost	$ 113,185,000		$ 0	$ 113,185,000	$ 0

Securities Available for Sale_2

Securities Available for Sale - Interest Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-Sale [Abstract]
Taxable	$ 50,043	$ 34,583	$ 37,534
Nontaxable	2,177	909	1,828
Total	$ 52,220	$ 35,492	$ 39,362

Securities Available for Sale_3

Securities Available for Sale - Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One	$ 2,307
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five	135,796
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10	131,656
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10	2,019,662
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	2,289,421	$ 2,685,648
Due within one year	0
Due after one year through five years	7,742
Due after five years through ten years	28,254
Due after ten years	235,070
Total	271,066
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One	2,267
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five	126,723
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10	118,654
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10	1,724,485
Debt Securities, Available-for-Sale, Excluding Accrued Interest	1,972,129	2,666,275
Due within one year	0
Due after one year through five years	7,561
Due after five years through ten years	27,241
Due after ten years	223,605
Total	258,407
Collateralized mortgage obligations
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	947,541	1,039,543
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	793,699	1,026,430
Mortgage-backed securities: Residential
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	544,084	769,113
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	453,177	759,224
Mortgage-backed securities: Commercial
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	417,241	595,659
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	368,287	599,402
Asset-backed Securities
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	153,539	153,564
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	147,604	153,451
Municipal Bonds [Member]
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	195,675	104,371
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	182,752	105,284
US Treasury Notes Securities
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	3,990	0
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	$ 3,886	$ 0

Securities Available for Sale_4

Securities Available for Sale - Aggregate Unrealized Losses and Fair Value (Details) $ in Thousands	Dec. 31, 2022 USD ($) security	Dec. 31, 2021 USD ($) security
Number  of Securities
Less than 12 months | security	150	152
12 months or longer | security	179	20
Total | security	329	172
Fair  Value
Less than 12 months	$ 488,959	$ 1,764,910
12 months or longer	1,443,090	174,593
Total	1,932,049	1,939,503
Gross Unrealized Losses
Less than 12 months	(37,420)	(29,377)
12 months or longer	(280,662)	(6,262)
Total	$ (318,082)	$ (35,639)
Collateralized mortgage obligations
Number  of Securities
Less than 12 months | security	61	39
12 months or longer | security	59	2
Total | security	120	41
Fair  Value
Less than 12 months	$ 150,419	$ 757,799
12 months or longer	643,280	37,438
Total	793,699	795,237
Gross Unrealized Losses
Less than 12 months	(14,888)	(15,445)
12 months or longer	(138,954)	(1,025)
Total	$ (153,842)	$ (16,470)
Mortgage-backed securities: Residential
Number  of Securities
Less than 12 months | security	23	49
12 months or longer | security	42	13
Total | security	65	62
Fair  Value
Less than 12 months	$ 55,645	$ 603,372
12 months or longer	397,532	75,211
Total	453,177	678,583
Gross Unrealized Losses
Less than 12 months	(5,616)	(9,371)
12 months or longer	(85,291)	(2,503)
Total	$ (90,907)	$ (11,874)
Mortgage-backed securities: Commercial
Number  of Securities
Less than 12 months | security	29	24
12 months or longer | security	26	4
Total | security	55	28
Fair  Value
Less than 12 months	$ 172,963	$ 214,384
12 months or longer	195,324	57,656
Total	368,287	272,040
Gross Unrealized Losses
Less than 12 months	(12,156)	(3,339)
12 months or longer	(36,798)	(2,021)
Total	$ (48,954)	$ (5,360)
Corporate securities
Number  of Securities
Less than 12 months | security	1	4
12 months or longer | security	5	1
Total | security	6	5
Fair  Value
Less than 12 months	$ 3,401	$ 14,067
12 months or longer	15,456	4,288
Total	18,857	18,355
Gross Unrealized Losses
Less than 12 months	(600)	(331)
12 months or longer	(3,894)	(713)
Total	$ (4,494)	$ (1,044)
Municipal securities
Number  of Securities
Less than 12 months | security	31	23
12 months or longer | security	32	0
Total | security	63	23
Fair  Value
Less than 12 months	$ 76,942	$ 59,403
12 months or longer	65,730	0
Total	142,672	59,403
Gross Unrealized Losses
Less than 12 months	(3,207)	(767)
12 months or longer	(10,506)	0
Total	$ (13,713)	$ (767)
U.S. Government Agency and U.S. Government Sponsored Enterprises
Gross Unrealized Losses
Percentage of portfolio	84%
Asset-backed Securities
Number  of Securities
Less than 12 months | security	3	13
12 months or longer | security	15	0
Total | security	18	13
Fair  Value
Less than 12 months	$ 21,836	$ 115,885
12 months or longer	125,768	0
Total	147,604	115,885
Gross Unrealized Losses
Less than 12 months	(716)	(124)
12 months or longer	(5,219)	0
Total	$ (5,935)	$ (124)
US Treasury Notes Securities
Number  of Securities
Less than 12 months | security	1
12 months or longer | security	0
Total | security	1
Fair  Value
Less than 12 months	$ 3,886
12 months or longer	0
Total	3,886
Gross Unrealized Losses
Less than 12 months	(104)
12 months or longer	0
Total	$ (104)
Agency Securities
Number  of Securities
Less than 12 months | security	1
12 months or longer | security	0
Total | security	1
Fair  Value
Less than 12 months	$ 3,867
12 months or longer	0
Total	3,867
Gross Unrealized Losses
Less than 12 months	(133)
12 months or longer	0
Total	$ (133)

Loans Receivable and Allowanc_3

Loans Receivable and Allowance for Credit Losses - Schedule of Loans Receivable By Major Category (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 15,403,540	$ 13,952,743
Total	(162,359)	(140,550)	$ (206,741)	$ (94,144)
Loans receivable, net of allowance for credit losses	$ 15,241,181	13,812,193
Number of portfolio segments | segment	4,000
Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 9,414,580	9,105,931
Total	(95,884)	(108,440)	(162,196)	(53,593)
Real estate loans | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	76,045	69,199
Total	(1,014)	(729)
Real estate loans | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	9,170,784	8,816,080
Total	(93,817)	(106,170)
Real estate loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	167,751	220,652
Total	(1,053)	(1,541)
Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	5,109,532	4,208,674
Total	(56,872)	(27,811)	(39,155)	(33,032)
Commercial business | SBA, Paycheck Protection Program Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,900	228,100
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	846,080	579,626
Total	(8,920)	(3,316)	(4,227)	(5,925)
Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	33,348	58,512
Total	$ (683)	$ (983)	$ (1,163)	$ (1,594)

Loans Receivable and Allowanc_4

Loans Receivable and Allowance for Credit Losses - Allowance for Credit Losses on Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Allowance for Loan Losses and the Loans Receivables by Impairment Methodology
Accrued interest receivable on loans	$ 47,300				$ 36,200				$ 47,300	$ 36,200
Allowance for Loan Losses by Portfolio Segment
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance				$ 140,550				$ 206,741	140,550	206,741	$ 94,144
Provision (credit) for credit/loan losses	8,200	$ 9,200	$ 3,200	(11,000)	1,500	$ (10,000)	$ (7,000)	3,300	9,600	(12,200)	95,000
Financing Receivable, Allowance for Credit Loss, Writeoff									(12,389)	(62,236)	(16,026)
Financing Receivable, Allowance for Credit Loss, Recovery									24,598	8,245	7,423
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	162,359				140,550				162,359	140,550	206,741
Allowance for credit losses:
Individually evaluated	3,856				5,115				3,856	5,115
Collectively evaluated	158,503				135,435				158,503	135,435
Total	162,359				140,550				162,359	140,550	206,741
Loans outstanding:
Individually evaluated	66,149				106,633				66,149	106,633
Collectively evaluated	15,337,391				13,846,110				15,337,391	13,846,110
Total	15,403,540				13,952,743				15,403,540	13,952,743
Reserve for unfunded loan commitments recorded in other liabilities	1,400				1,100				1,400	1,100
Additions to reserves for unfunded loan commitments recorded in credit related expenses									250	(195)	660
Provision for accrued interest receivables on loans									1,107	846	1,000
ACL for the TDRs that had payment defaults	0								0	101	120
Total charge-offs of TDR loans modified									0	0	0
Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses:
Total												$ 26,200
Real estate
Allowance for Loan Losses by Portfolio Segment
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance				108,440				162,196	108,440	162,196	53,593
Provision (credit) for credit/loan losses									(27,451)	(2,051)	87,619
Financing Receivable, Allowance for Credit Loss, Writeoff									(6,803)	(57,427)	(8,658)
Financing Receivable, Allowance for Credit Loss, Recovery									21,698	5,722	1,851
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	95,884				108,440				95,884	108,440	162,196
Allowance for credit losses:
Individually evaluated	870				2,025				870	2,025
Collectively evaluated	95,014				106,415				95,014	106,415
Total	95,884				108,440				95,884	108,440	162,196
Loans outstanding:
Individually evaluated	43,461				83,347				43,461	83,347
Collectively evaluated	9,371,119				9,022,584				9,371,119	9,022,584
Total	9,414,580				9,105,931				9,414,580	9,105,931
Proceeds from sale of loans										275,300
Real estate | Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses:
Total												27,791
Commercial business
Allowance for Loan Losses by Portfolio Segment
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance				27,811				39,155	27,811	39,155	33,032
Provision (credit) for credit/loan losses									31,360	(9,982)	7,776
Financing Receivable, Allowance for Credit Loss, Writeoff									(5,160)	(3,558)	(6,157)
Financing Receivable, Allowance for Credit Loss, Recovery									2,861	2,196	5,526
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	56,872				27,811				56,872	27,811	39,155
Allowance for credit losses:
Individually evaluated	2,941				3,056				2,941	3,056
Collectively evaluated	53,931				24,755				53,931	24,755
Total	56,872				27,811				56,872	27,811	39,155
Loans outstanding:
Individually evaluated	12,477				19,407				12,477	19,407
Collectively evaluated	5,097,055				4,189,267				5,097,055	4,189,267
Total	5,109,532				4,208,674				5,109,532	4,208,674
Commercial business | Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses:
Total												(1,022)
Residential mortgage
Allowance for Loan Losses by Portfolio Segment
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance				3,316				4,227	3,316	4,227	5,925
Provision (credit) for credit/loan losses									5,626	12	(1,155)
Financing Receivable, Allowance for Credit Loss, Writeoff									(22)	(923)	0
Financing Receivable, Allowance for Credit Loss, Recovery									0	0	0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	8,920				3,316				8,920	3,316	4,227
Allowance for credit losses:
Individually evaluated	24				11				24	11
Collectively evaluated	8,896				3,305				8,896	3,305
Total	8,920				3,316				8,920	3,316	4,227
Loans outstanding:
Individually evaluated	9,775				3,470				9,775	3,470
Collectively evaluated	836,305				576,156				836,305	576,156
Total	846,080				579,626				846,080	579,626
Residential mortgage | Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses:
Total												(543)
Consumer and other
Allowance for Loan Losses by Portfolio Segment
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance				$ 983				$ 1,163	983	1,163	1,594
Provision (credit) for credit/loan losses									65	(179)	760
Financing Receivable, Allowance for Credit Loss, Writeoff									(404)	(328)	(1,211)
Financing Receivable, Allowance for Credit Loss, Recovery									39	327	46
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance	683				983				683	983	1,163
Allowance for credit losses:
Individually evaluated	21				23				21	23
Collectively evaluated	662				960				662	960
Total	683				983				683	983	$ 1,163
Loans outstanding:
Individually evaluated	436				409				436	409
Collectively evaluated	32,912				58,103				32,912	58,103
Total	$ 33,348				$ 58,512				$ 33,348	$ 58,512
Consumer and other | Cumulative Effect, Period of Adoption, Adjustment
Allowance for credit losses:
Total												$ (26)

Loans Receivable and Allowanc_5

Loans Receivable and Allowance for Credit Losses - Nonaccrual Loans and Loans Past Due 90 or More Days and Still on Accrual Status (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Nonaccrual [Line Items]
Guaranteed portion of SBA loans excluded from Nonaccrual loans	$ 9,800	$ 19,500
Nonaccrual with No ACL	37,359	25,860
Nonaccrual with an ACL	12,328	28,756
Financing Receivable, Nonaccrual	49,687	54,616
Accruing Loans Past Due 90 or More Days	401	2,131
Commercial business
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	1,618	4,726
Nonaccrual with an ACL	4,002	6,299
Financing Receivable, Nonaccrual	5,620	11,025
Accruing Loans Past Due 90 or More Days	336	1,494
Residential Portfolio Segment
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	5,959	275
Nonaccrual with an ACL	3,816	3,195
Financing Receivable, Nonaccrual	9,775	3,470
Accruing Loans Past Due 90 or More Days	0	0
Consumer
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	0	0
Nonaccrual with an ACL	377	365
Financing Receivable, Nonaccrual	377	365
Accruing Loans Past Due 90 or More Days	65	422
Residential | Real estate loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	0	0
Nonaccrual with an ACL	0	0
Financing Receivable, Nonaccrual	0	0
Accruing Loans Past Due 90 or More Days	0	0
Commercial | Real estate loans | Retail
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	17,635	7,586
Nonaccrual with an ACL	1,007	2,604
Financing Receivable, Nonaccrual	18,642	10,190
Accruing Loans Past Due 90 or More Days	0	0
Commercial | Real estate loans | Hotel & motel
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	8,939	5,471
Nonaccrual with an ACL	347	6,564
Financing Receivable, Nonaccrual	9,286	12,035
Accruing Loans Past Due 90 or More Days	0	0
Commercial | Real estate loans | Real Estate Commercial Gas Station & Car Wash [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	2,134	575
Nonaccrual with an ACL	124	1,267
Financing Receivable, Nonaccrual	2,258	1,842
Accruing Loans Past Due 90 or More Days	0	0
Commercial | Real estate loans | Mixed use
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	781	5,307
Nonaccrual with an ACL	186	1,412
Financing Receivable, Nonaccrual	967	6,719
Accruing Loans Past Due 90 or More Days	0	0
Commercial | Real estate loans | Industrial & warehouse
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	109	687
Nonaccrual with an ACL	727	1,897
Financing Receivable, Nonaccrual	836	2,584
Accruing Loans Past Due 90 or More Days	0	0
Commercial | Real estate loans | Other
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	184	1,233
Nonaccrual with an ACL	1,742	5,153
Financing Receivable, Nonaccrual	1,926	6,386
Accruing Loans Past Due 90 or More Days	0	215
Construction | Real estate loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No ACL	0	0
Nonaccrual with an ACL	0	0
Financing Receivable, Nonaccrual	0	0
Accruing Loans Past Due 90 or More Days	$ 0	$ 0

Loans Receivable and Allowanc_6

Loans Receivable and Allowance for Credit Losses - Collateral-Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 162,359	$ 140,550	$ 206,741	$ 94,144
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	45,843	73,972
Real Estate Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	43,100	67,357
Other Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,743	6,615
Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	95,884	108,440	162,196	53,593
Real estate | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,014	729
Real estate | Residential | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Real estate | Residential | Real Estate Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Real estate | Residential | Other Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Real estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	93,817	106,170
Real estate | Commercial | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	35,523	65,590
Real estate | Commercial | Real Estate Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	35,523	65,590
Real estate | Commercial | Other Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Real estate | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,053	1,541
Real estate | Construction | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Real estate | Construction | Real Estate Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Real estate | Construction | Other Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	56,872	27,811	39,155	33,032
Commercial business | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,361	8,382
Commercial business | Real Estate Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,618	1,767
Commercial business | Other Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,743	6,615
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,920	3,316	4,227	5,925
Residential mortgage | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,959	0
Residential mortgage | Real Estate Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,959	0
Residential mortgage | Other Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	683	983	$ 1,163	$ 1,594
Consumer and other | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer and other | Real Estate Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer and other | Other Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 0	$ 0

Loans Receivable and Allowanc_7

Loans Receivable and Allowance for Credit Losses - Interest Income Reversals (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income reversals	$ 2,523	$ 3,184	$ 1,128
Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income reversals	1,906	3,102	1,047
Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income reversals	307	62	78
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income reversals	309	17	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income reversals	$ 1	$ 3	$ 3

Loans Receivable and Allowanc_8

Loans Receivable and Allowance for Credit Losses - Past Due Financing Receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Total loans	$ 15,403,540	$ 13,952,743
Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	24,511	78,444
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	8,477	29,742
60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,789	13,980
90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	13,245	34,722
Real estate
Financing Receivable, Past Due [Line Items]
Total loans	9,414,580	9,105,931
Real estate | Residential
Financing Receivable, Past Due [Line Items]
Total loans	76,045	69,199
Real estate | Residential | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	1,266	0
Real estate | Residential | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	1,266	0
Real estate | Residential | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate | Residential | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate | Commercial
Financing Receivable, Past Due [Line Items]
Total loans	9,170,784	8,816,080
Real estate | Commercial | Retail | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,138	11,344
Real estate | Commercial | Retail | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	1,250
Real estate | Commercial | Retail | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	1,617	927
Real estate | Commercial | Retail | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	521	9,167
Real estate | Commercial | Hotel & motel | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	4,426	18,228
Real estate | Commercial | Hotel & motel | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	359	9,320
Real estate | Commercial | Hotel & motel | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	564	4,148
Real estate | Commercial | Hotel & motel | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	3,503	4,760
Real estate | Commercial | Gas station & car wash | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	706	1,407
Real estate | Commercial | Gas station & car wash | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	582	575
Real estate | Commercial | Gas station & car wash | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	124	0
Real estate | Commercial | Gas station & car wash | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	832
Real estate | Commercial | Mixed use | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	781	6,749
Real estate | Commercial | Mixed use | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	1,124
Real estate | Commercial | Mixed use | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate | Commercial | Mixed use | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	781	5,625
Real estate | Commercial | Industrial & warehouse | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	442	1,032
Real estate | Commercial | Industrial & warehouse | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	85	247
Real estate | Commercial | Industrial & warehouse | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	89	0
Real estate | Commercial | Industrial & warehouse | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	268	785
Real estate | Commercial | Other | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	954	10,905
Real estate | Commercial | Other | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	1,198
Real estate | Commercial | Other | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	333	6,522
Real estate | Commercial | Other | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	621	3,185
Real estate | Construction
Financing Receivable, Past Due [Line Items]
Total loans	167,751	220,652
Real estate | Construction | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate | Construction | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate | Construction | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate | Construction | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Commercial business
Financing Receivable, Past Due [Line Items]
Total loans	5,109,532	4,208,674
Commercial business | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	5,413	10,636
Commercial business | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	3,258	1,792
Commercial business | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	18	2,362
Commercial business | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,137	6,482
Residential mortgage
Financing Receivable, Past Due [Line Items]
Total loans	846,080	579,626
Residential mortgage | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	7,416	17,276
Residential mortgage | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,310	14,177
Residential mortgage | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Residential mortgage | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	5,106	3,099
Consumer and other
Financing Receivable, Past Due [Line Items]
Total loans	33,348	58,512
Consumer and other | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	969	867
Consumer and other | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	617	59
Consumer and other | 60-89 Days  Past Due
Financing Receivable, Past Due [Line Items]
Total loans	44	21
Consumer and other | 90 or More Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	$ 308	$ 787

Loans Receivable and Allowanc_9

Loans Receivable and Allowance for Credit Losses - Financing Receivable Credit Quality Indicators (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	$ 5,143,826,000	$ 4,569,237,000
Term loan originated in year two	3,631,392,000	1,949,984,000
Term loan originated in year three	1,696,989,000	1,864,273,000
Term loan originated in year four	1,435,748,000	1,586,677,000
Term loan originated in year five	1,176,479,000	1,126,085,000
Term loan originated prior to year five	1,326,792,000	1,427,092,000
Revolving Loans	992,314,000	1,429,395,000
Total loans	15,403,540,000	13,952,743,000
Revolving loans converted to term loans	0	0
Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	9,414,580,000	9,105,931,000
Commercial business
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	2,329,255,000	1,760,279,000
Term loan originated in year two	1,130,260,000	432,609,000
Term loan originated in year three	311,188,000	468,548,000
Term loan originated in year four	299,243,000	103,360,000
Term loan originated in year five	70,741,000	57,982,000
Term loan originated prior to year five	99,246,000	78,838,000
Revolving Loans	869,599,000	1,307,058,000
Total loans	5,109,532,000	4,208,674,000
Residential Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	382,935,000	282,466,000
Term loan originated in year two	283,474,000	1,420,000
Term loan originated in year three	1,386,000	40,505,000
Term loan originated in year four	31,570,000	113,137,000
Term loan originated in year five	63,360,000	85,987,000
Term loan originated prior to year five	83,355,000	56,111,000
Revolving Loans	0	0
Total loans	846,080,000	579,626,000
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	10,005,000	19,203,000
Term loan originated in year two	723,000	5,347,000
Term loan originated in year three	3,351,000	1,783,000
Term loan originated in year four	223,000	1,699,000
Term loan originated in year five	10,000	1,769,000
Term loan originated prior to year five	1,797,000	6,616,000
Revolving Loans	17,239,000	22,095,000
Total loans	33,348,000	58,512,000
Pass / not rated
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	5,125,915,000	4,550,798,000
Term loan originated in year two	3,567,993,000	1,931,920,000
Term loan originated in year three	1,668,356,000	1,799,957,000
Term loan originated in year four	1,405,364,000	1,489,539,000
Term loan originated in year five	1,151,260,000	1,035,913,000
Term loan originated prior to year five	1,236,460,000	1,229,565,000
Revolving Loans	986,856,000	1,415,460,000
Total loans	15,142,204,000	13,453,152,000
Pass / not rated | Commercial business
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	2,311,344,000	1,755,104,000
Term loan originated in year two	1,090,034,000	431,145,000
Term loan originated in year three	291,592,000	461,460,000
Term loan originated in year four	298,133,000	98,812,000
Term loan originated in year five	69,721,000	53,629,000
Term loan originated prior to year five	95,531,000	70,294,000
Revolving Loans	864,343,000	1,299,372,000
Total loans	5,020,698,000	4,169,816,000
Pass / not rated | Residential Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	382,935,000	282,191,000
Term loan originated in year two	283,163,000	1,420,000
Term loan originated in year three	1,386,000	40,377,000
Term loan originated in year four	30,603,000	112,743,000
Term loan originated in year five	62,976,000	85,446,000
Term loan originated prior to year five	75,242,000	53,979,000
Revolving Loans	0	0
Total loans	836,305,000	576,156,000
Pass / not rated | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	10,005,000	19,203,000
Term loan originated in year two	723,000	5,347,000
Term loan originated in year three	3,351,000	1,783,000
Term loan originated in year four	223,000	1,699,000
Term loan originated in year five	10,000	1,769,000
Term loan originated prior to year five	1,420,000	6,165,000
Revolving Loans	17,239,000	22,095,000
Total loans	32,971,000	58,061,000
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	17,911,000	6,932,000
Term loan originated in year two	52,015,000	9,405,000
Term loan originated in year three	21,008,000	44,347,000
Term loan originated in year four	20,536,000	69,630,000
Term loan originated in year five	13,565,000	32,828,000
Term loan originated prior to year five	26,770,000	85,488,000
Revolving Loans	5,458,000	8,564,000
Total loans	157,263,000	257,194,000
Special mention | Commercial business
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	17,911,000	1,379,000
Term loan originated in year two	37,393,000	523,000
Term loan originated in year three	13,707,000	4,780,000
Term loan originated in year four	110,000	2,897,000
Term loan originated in year five	0	550,000
Term loan originated prior to year five	24,000	5,083,000
Revolving Loans	5,256,000	2,594,000
Total loans	74,401,000	17,806,000
Special mention | Residential Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	0	0
Special mention | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	0	0
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	11,507,000
Term loan originated in year two	11,384,000	8,659,000
Term loan originated in year three	7,625,000	19,969,000
Term loan originated in year four	9,848,000	27,508,000
Term loan originated in year five	11,654,000	57,344,000
Term loan originated prior to year five	63,562,000	112,039,000
Revolving Loans	0	5,371,000
Total loans	104,073,000	242,397,000
Substandard | Commercial business
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	3,796,000
Term loan originated in year two	2,833,000	941,000
Term loan originated in year three	5,889,000	2,308,000
Term loan originated in year four	1,000,000	1,651,000
Term loan originated in year five	1,020,000	3,803,000
Term loan originated prior to year five	3,691,000	3,461,000
Revolving Loans	0	5,092,000
Total loans	14,433,000	21,052,000
Substandard | Residential Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	275,000
Term loan originated in year two	311,000	0
Term loan originated in year three	0	128,000
Term loan originated in year four	967,000	394,000
Term loan originated in year five	384,000	541,000
Term loan originated prior to year five	8,113,000	2,132,000
Revolving Loans	0	0
Total loans	9,775,000	3,470,000
Substandard | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	377,000	451,000
Revolving Loans	0	0
Total loans	377,000	451,000
Doubtful / loss
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	0	0
Doubtful / loss | Commercial business
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	0	0
Doubtful / loss | Residential Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	0	0
Doubtful / loss | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	0	0
Residential | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	19,256,000	26,093,000
Term loan originated in year two	23,505,000	10,471,000
Term loan originated in year three	9,691,000	11,442,000
Term loan originated in year four	9,017,000	5,619,000
Term loan originated in year five	4,625,000	2,987,000
Term loan originated prior to year five	5,956,000	8,184,000
Revolving Loans	3,995,000	4,403,000
Total loans	76,045,000	69,199,000
Residential | Pass / not rated | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	19,256,000	26,093,000
Term loan originated in year two	23,505,000	10,471,000
Term loan originated in year three	9,691,000	11,442,000
Term loan originated in year four	9,017,000	4,952,000
Term loan originated in year five	3,964,000	2,987,000
Term loan originated prior to year five	5,397,000	7,260,000
Revolving Loans	3,995,000	4,403,000
Total loans	74,825,000	67,608,000
Residential | Special mention | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	534,000
Term loan originated in year five	0	0
Term loan originated prior to year five	0	924,000
Revolving Loans	0	0
Total loans	0	1,458,000
Residential | Substandard | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	133,000
Term loan originated in year five	661,000	0
Term loan originated prior to year five	559,000	0
Revolving Loans	0	0
Total loans	1,220,000	133,000
Residential | Doubtful / loss | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	0	0
Commercial | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	2,395,805,000	2,464,651,000
Term loan originated in year two	2,163,512,000	1,432,509,000
Term loan originated in year three	1,308,181,000	1,309,951,000
Term loan originated in year four	1,057,852,000	1,283,958,000
Term loan originated in year five	1,029,608,000	963,994,000
Term loan originated prior to year five	1,114,434,000	1,265,267,000
Revolving Loans	101,392,000	95,750,000
Total loans	9,170,784,000	8,816,080,000
Commercial | Pass / not rated | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	2,395,805,000	2,451,662,000
Term loan originated in year two	2,140,650,000	1,415,909,000
Term loan originated in year three	1,299,144,000	1,252,851,000
Term loan originated in year four	1,043,970,000	1,238,425,000
Term loan originated in year five	1,006,454,000	883,790,000
Term loan originated prior to year five	1,053,970,000	1,086,182,000
Revolving Loans	101,190,000	89,501,000
Total loans	9,041,183,000	8,418,320,000
Commercial | Special mention | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	5,553,000
Term loan originated in year two	14,622,000	8,882,000
Term loan originated in year three	7,301,000	39,567,000
Term loan originated in year four	6,001,000	20,203,000
Term loan originated in year five	13,565,000	27,204,000
Term loan originated prior to year five	15,912,000	73,090,000
Revolving Loans	202,000	5,970,000
Total loans	57,603,000	180,469,000
Commercial | Substandard | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	7,436,000
Term loan originated in year two	8,240,000	7,718,000
Term loan originated in year three	1,736,000	17,533,000
Term loan originated in year four	7,881,000	25,330,000
Term loan originated in year five	9,589,000	53,000,000
Term loan originated prior to year five	44,552,000	105,995,000
Revolving Loans	0	279,000
Total loans	71,998,000	217,291,000
Commercial | Doubtful / loss | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	0	0
Construction | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	6,570,000	16,545,000
Term loan originated in year two	29,918,000	67,628,000
Term loan originated in year three	63,192,000	32,044,000
Term loan originated in year four	37,843,000	78,904,000
Term loan originated in year five	8,135,000	13,366,000
Term loan originated prior to year five	22,004,000	12,076,000
Revolving Loans	89,000	89,000
Total loans	167,751,000	220,652,000
Construction | Pass / not rated | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	6,570,000	16,545,000
Term loan originated in year two	29,918,000	67,628,000
Term loan originated in year three	63,192,000	32,044,000
Term loan originated in year four	23,418,000	32,908,000
Term loan originated in year five	8,135,000	8,292,000
Term loan originated prior to year five	4,900,000	5,685,000
Revolving Loans	89,000	89,000
Total loans	136,222,000	163,191,000
Construction | Special mention | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	14,425,000	45,996,000
Term loan originated in year five	0	5,074,000
Term loan originated prior to year five	10,834,000	6,391,000
Revolving Loans	0	0
Total loans	25,259,000	57,461,000
Construction | Substandard | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	6,270,000	0
Revolving Loans	0	0
Total loans	6,270,000	0
Construction | Doubtful / loss | Real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loan originated in year one	0	0
Term loan originated in year two	0	0
Term loan originated in year three	0	0
Term loan originated in year four	0	0
Term loan originated in year five	0	0
Term loan originated prior to year five	0	0
Revolving Loans	0	0
Total loans	$ 0	$ 0

Loans Receivable and Allowan_10

Loans Receivable and Allowance for Credit Losses - Loans Held For Investment - Reclassification to Held for Sale (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of loans held for investment to held for sale	$ 311,535	$ 472,598	$ 1,243
Total loans	15,403,540	13,952,743
Loans held for sale, at the lower of cost or fair value	49,245	99,049
Pass / not rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	15,142,204	13,453,152
Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	157,263	257,194
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	104,073	242,397
Loans held for sale, at the lower of cost or fair value	48,800	26,200
Doubtful / loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, at the lower of cost or fair value	450	23,200
Small Business Administration Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, at the lower of cost or fair value		49,700
Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,414,580	9,105,931
Real estate loans | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	76,045	69,199
Real estate loans | Residential | Pass / not rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	74,825	67,608
Real estate loans | Residential | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	1,458
Real estate loans | Residential | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,220	133
Real estate loans | Residential | Doubtful / loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Real estate loans | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of loans held for investment to held for sale	257,317	365,426	0
Total loans	9,170,784	8,816,080
Real estate loans | Commercial | Pass / not rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,041,183	8,418,320
Real estate loans | Commercial | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	57,603	180,469
Real estate loans | Commercial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	71,998	217,291
Real estate loans | Commercial | Doubtful / loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Real estate loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	167,751	220,652
Real estate loans | Construction | Pass / not rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	136,222	163,191
Real estate loans | Construction | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	25,259	57,461
Real estate loans | Construction | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	6,270	0
Real estate loans | Construction | Doubtful / loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of loans held for investment to held for sale	0	7,018	0
Total loans	846,080	579,626
Residential mortgage | Pass / not rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	836,305	576,156
Residential mortgage | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Residential mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,775	3,470
Residential mortgage | Doubtful / loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of loans held for investment to held for sale	54,218	100,154	0
Total loans	5,109,532	4,208,674
Commercial business | Pass / not rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,020,698	4,169,816
Commercial business | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	74,401	17,806
Commercial business | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	14,433	21,052
Commercial business | Doubtful / loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of loans held for investment to held for sale	0	0	$ 1,243
Total loans	33,348	58,512
Consumer | Pass / not rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	32,971	58,061
Consumer | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Consumer | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	377	451
Consumer | Doubtful / loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 0	$ 0

Loans Receivable and Allowan_11

Loans Receivable and Allowance for Credit Losses - Additional Information (Details)	3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2022 USD ($)	Jun. 30, 2022 loan	Dec. 31, 2022 USD ($) loan security segment	Dec. 31, 2021 USD ($) security loan	Dec. 31, 2020 USD ($) security loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, writeoff			$ 12,389,000	$ 62,236,000	$ 16,026,000
Reasonable and supportable period at which point loss assumptions revert back to historical loss information			2 years
Reversion period			1 year
Financing receivable, balance threshold to determine individual evaluation for impairment	$ 1,000,000		$ 1,000,000
Total TDR loans	41,126,000		$ 41,126,000	$ 65,513,000
Number of loans | loan			1	12	25
Allowance for TDRs	2,800,000		$ 2,800,000	$ 2,700,000	$ 4,800,000
ACL for TDRs modified during period			0	86,000	1,500,000
Total charge-offs of TDR loans modified			0	0	0
ACL for the TDRs that had payment defaults	0		0	101,000	120,000
Total charge offs for TDR loans that had payment defaults			0	0	0
Accrued interest receivable on loans	47,300,000		47,300,000	36,200,000
Total loans	15,403,540,000		15,403,540,000	13,952,743,000
Transfer from loans receivable to loans held for sale			311,535,000	472,598,000	1,243,000
Loans held for sale, at the lower of cost or fair value	49,245,000		49,245,000	99,049,000
Guaranteed portion of SBA loans excluded from Nonaccrual loans	9,800,000		9,800,000	19,500,000
Financing Receivable, Allowance for Credit Loss, Recovery			$ 24,598,000	8,245,000	$ 7,423,000
Number of portfolio segments | segment			4,000
Loans and Leases Receivable, Related Parties	92,800,000		$ 92,800,000	31,900,000
Troubled Debt Restructuring Concession, Type, Payment Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	26,269,000		26,269,000	$ 31,955,000
Number of loans | security				5	11
ACL for TDRs modified during period				$ 17,800,000	$ 2,000,000
Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	11,078,000		11,078,000	$ 26,411,000
Number of loans | security				7	12
ACL for TDRs modified during period				$ 7,800,000	$ 5,400,000
Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held for sale, at the lower of cost or fair value	48,800,000		48,800,000	26,200,000
6500 Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Recovery			17,300,000
COVID-19 Pandemic
Financing Receivable, Allowance for Credit Loss [Line Items]
Amount of loans modified	0		0	22,800,000
Small Business Administration Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held for sale, at the lower of cost or fair value				49,700,000
Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held for sale, at the lower of cost or fair value	450,000		$ 450,000	23,200,000
Real Estate Loan | Troubled Debt Restructuring Concession, Type, Payment Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Number of loans | security			1
ACL for TDRs modified during period			$ 1,900,000
Real Estate Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans and Leases Receivable, Related Parties	92,800,000		92,800,000	31,200,000
Commercial business
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans and Leases Receivable, Related Parties	29,000		29,000	747,000
Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, writeoff			6,803,000	57,427,000	8,658,000
Total loans	9,414,580,000		9,414,580,000	9,105,931,000
Financing Receivable, Allowance for Credit Loss, Recovery			21,698,000	5,722,000	$ 1,851,000
Proceeds from sale of loans				275,300,000
Real estate | Special mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, writeoff				29,600,000
Real estate | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, writeoff				26,200,000
Real estate | TDR Loans on Accrual Status
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	9,789,000		9,789,000	43,806,000
Real estate | TDR Loans on Accrual Status | Troubled Debt Restructuring Concession, Type, Payment Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	5,404,000		5,404,000	23,196,000
Real estate | TDR Loans on Accrual Status | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	2,190,000		2,190,000	15,449,000
Real estate | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans	9,170,784,000		$ 9,170,784,000	$ 8,816,080,000
Real estate | Commercial | Hotel & motel
Financing Receivable, Allowance for Credit Loss [Line Items]
Number of loans | loan			1	0	0
Real estate | Commercial | TDR Loans on Accrual Status
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	9,800,000		$ 9,800,000	$ 43,800,000
Number of loans | loan		31	24
Real estate | Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Number of loans | loan			0	0	0
Total loans	76,045,000		$ 76,045,000	$ 69,199,000
Commercial business
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, writeoff			$ 5,160,000	$ 3,558,000	$ 6,157,000
Number of loans | loan			0	3	6
Total loans	5,109,532,000		$ 5,109,532,000	$ 4,208,674,000
Financing Receivable, Allowance for Credit Loss, Recovery			2,861,000	2,196,000	$ 5,526,000
Commercial business | SBA, Paycheck Protection Program Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans	1,900,000		1,900,000	228,100,000
Commercial business | TDR Loans on Accrual Status
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	6,862,000		$ 6,862,000	8,413,000
Number of loans | loan		19	11
Commercial business | TDR Loans on Accrual Status | Troubled Debt Restructuring Concession, Type, Payment Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	501,000		$ 501,000	790,000
Commercial business | TDR Loans on Accrual Status | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	6,175,000		6,175,000	7,284,000
Consumer and other
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, writeoff			$ 404,000	$ 328,000	$ 1,211,000
Number of loans | loan			0	2	9
Total loans	33,348,000		$ 33,348,000	$ 58,512,000
Financing Receivable, Allowance for Credit Loss, Recovery			39,000	327,000	$ 46,000
Consumer and other | TDR Loans on Accrual Status
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	280,000		$ 280,000	199,000
Number of loans | loan		10	9
Consumer and other | TDR Loans on Accrual Status | Troubled Debt Restructuring Concession, Type, Payment Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	0		$ 0	16,000
Consumer and other | TDR Loans on Accrual Status | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	280,000		280,000	183,000
Residential Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, writeoff			$ 22,000	$ 923,000	$ 0
Number of loans | loan			0	0	0
Total loans	846,080,000		$ 846,080,000	$ 579,626,000
Financing Receivable, Allowance for Credit Loss, Recovery			0	0	$ 0
Residential Portfolio Segment | TDR Loans on Accrual Status
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	0		0	0
Residential Portfolio Segment | TDR Loans on Accrual Status | Troubled Debt Restructuring Concession, Type, Payment Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	0		0	0
Residential Portfolio Segment | TDR Loans on Accrual Status | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total TDR loans	$ 0		$ 0	$ 0
Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Temporary modifications, period of interest only payments			3 months
Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Temporary modifications, period of interest only payments			6 months

Loans Receivable and Allowan_12

Loans Receivable and Allowance for Credit Losses - Allowance for Loans, by Portfolio Segment and Evaluation Method (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans by Portfolio Segment and Impairment Method [Abstract]
Individually evaluated loans	$ 66,149	$ 106,633
ACL on individually evaluated loans	$ 3,856	$ 5,115
Individually evaluated loans ACL coverage	5.83%	4.80%
Collectively evaluated loans	$ 15,337,391	$ 13,846,110
ACL on collectively evaluated loans	$ 158,503	$ 135,435
Collectively evaluated loans ACL coverage	1.03%	0.98%
Total loans	$ 15,403,540	$ 13,952,743
Allowance for credit losses on loans receivable	$ 162,359	$ 140,550	$ 206,741	$ 94,144
Total ACL to total loans	1.05%	1.01%
Real estate loans
Loans by Portfolio Segment and Impairment Method [Abstract]
Individually evaluated loans	$ 43,461	$ 83,347
ACL on individually evaluated loans	870	2,025
Collectively evaluated loans	9,371,119	9,022,584
ACL on collectively evaluated loans	95,014	106,415
Total loans	9,414,580	9,105,931
Allowance for credit losses on loans receivable	95,884	108,440	162,196	53,593
Commercial business
Loans by Portfolio Segment and Impairment Method [Abstract]
Individually evaluated loans	12,477	19,407
ACL on individually evaluated loans	$ 2,941	$ 3,056
Individually evaluated loans ACL coverage	23.57%	15.75%
Collectively evaluated loans	$ 5,097,055	$ 4,189,267
ACL on collectively evaluated loans	$ 53,931	$ 24,755
Collectively evaluated loans ACL coverage	1.06%	0.59%
Total loans	$ 5,109,532	$ 4,208,674
Allowance for credit losses on loans receivable	$ 56,872	$ 27,811	39,155	33,032
Total ACL to total loans	1.11%	0.66%
Residential Portfolio Segment
Loans by Portfolio Segment and Impairment Method [Abstract]
Individually evaluated loans	$ 9,775	$ 3,470
ACL on individually evaluated loans	$ 24	$ 11
Individually evaluated loans ACL coverage	0.25%	0.32%
Collectively evaluated loans	$ 836,305	$ 576,156
ACL on collectively evaluated loans	$ 8,896	$ 3,305
Collectively evaluated loans ACL coverage	1.06%	0.57%
Total loans	$ 846,080	$ 579,626
Allowance for credit losses on loans receivable	$ 8,920	$ 3,316	4,227	5,925
Total ACL to total loans	1.05%	0.57%
Consumer
Loans by Portfolio Segment and Impairment Method [Abstract]
Individually evaluated loans	$ 436	$ 409
ACL on individually evaluated loans	$ 21	$ 23
Individually evaluated loans ACL coverage	4.82%	5.62%
Collectively evaluated loans	$ 32,912	$ 58,103
ACL on collectively evaluated loans	$ 662	$ 960
Collectively evaluated loans ACL coverage	2.01%	1.65%
Total loans	$ 33,348	$ 58,512
Allowance for credit losses on loans receivable	$ 683	$ 983	$ 1,163	$ 1,594
Total ACL to total loans	2.05%	1.68%
Residential | Real estate loans
Loans by Portfolio Segment and Impairment Method [Abstract]
Individually evaluated loans	$ 0	$ 0
ACL on individually evaluated loans	0	0
Collectively evaluated loans	76,045	69,199
ACL on collectively evaluated loans	$ 1,014	$ 729
Collectively evaluated loans ACL coverage	1.33%	1.05%
Total loans	$ 76,045	$ 69,199
Allowance for credit losses on loans receivable	$ 1,014	$ 729
Total ACL to total loans	1.33%	1.05%
Commercial | Real estate loans
Loans by Portfolio Segment and Impairment Method [Abstract]
Individually evaluated loans	$ 43,461	$ 83,347
ACL on individually evaluated loans	$ 870	$ 2,025
Individually evaluated loans ACL coverage	2%	2.43%
Collectively evaluated loans	$ 9,127,323	$ 8,732,733
ACL on collectively evaluated loans	$ 92,947	$ 104,145
Collectively evaluated loans ACL coverage	1.02%	1.19%
Total loans	$ 9,170,784	$ 8,816,080
Allowance for credit losses on loans receivable	$ 93,817	$ 106,170
Total ACL to total loans	1.02%	1.20%
Construction | Real estate loans
Loans by Portfolio Segment and Impairment Method [Abstract]
Individually evaluated loans	$ 0	$ 0
ACL on individually evaluated loans	0	0
Collectively evaluated loans	167,751	220,652
ACL on collectively evaluated loans	$ 1,053	$ 1,541
Collectively evaluated loans ACL coverage	0.63%	0.70%
Total loans	$ 167,751	$ 220,652
Allowance for credit losses on loans receivable	$ 1,053	$ 1,541
Total ACL to total loans	0.63%	0.70%

Loans Receivable and Allowan_13

Loans Receivable and Allowance for Credit Losses - Troubled Debt Restructurings on Financing Receivables (Details) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2022 USD ($)	Jun. 30, 2022 loan	Dec. 31, 2022 USD ($) loan security	Dec. 31, 2021 USD ($) security loan	Dec. 31, 2020 USD ($) security loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	$ 41,126		$ 41,126	$ 65,513
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			1	12	25
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 1,932	$ 25,572	$ 8,016
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	7	10
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 6,596	$ 2,351
ACL for TDRs modified during period			0	86	1,500
Total charge-offs of TDR loans modified			0	0	0
ACL for the TDRs that had payment defaults	0		0	101	120
Total charge offs for TDR loans that had payment defaults			0	0	0
Allowance for TDRs	2,800		2,800	2,700	$ 4,800
Financing Receivable, Modification, Commitment to Lend	40		40	557
Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	26,269		$ 26,269	$ 31,955
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | security				5	11
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan				4	4
ACL for TDRs modified during period				$ 17,800	$ 2,000
Payment concession | Commercial
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default					$ 464
Payment concession | Real Estate Loan
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | security			1
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | security				1	1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default				$ 575
ACL for TDRs modified during period			$ 1,900
Payment concession | Commercial business
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan				1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default				$ 102
Payment concession | Consumer
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan				2	3
Financing Receivable, Troubled Debt Restructuring, Subsequent Default				$ 13	$ 19
Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	11,078		11,078	$ 26,411
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | security				7	12
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan				3	4
Financing Receivable, Troubled Debt Restructuring, Subsequent Default				$ 5,900
ACL for TDRs modified during period				7,800	$ 5,400
Maturity / amortization concession | Real Estate Loan
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan					2
Financing Receivable, Troubled Debt Restructuring, Subsequent Default					$ 1,200
Maturity / amortization concession | Consumer
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan					2
Financing Receivable, Troubled Debt Restructuring, Subsequent Default					$ 11
Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	3,779		$ 3,779	7,147
Troubled Debt Restructuring Concession, Type, Interest
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | security					2
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan					2
ACL for TDRs modified during period					$ 622
Troubled Debt Restructuring Concession, Type, Interest | Real Estate Loan
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | security					1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default				$ 458
Troubled Debt Restructuring Concession, Type, Interest | Consumer
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan				1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default				$ 164
Real estate | Residential
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 0	$ 0
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 0
Real estate | Commercial | Retail
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	5	3
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 24,169	$ 1,589
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	3	1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 5,906	$ 478
Real estate | Commercial | Hotel & motel
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			1	0	0
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 1,932	$ 0	$ 0
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 0	$ 0
Real estate | Commercial | Gas station & car wash
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	1	2
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 575	$ 501
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	1	1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 575	$ 464
Real estate | Commercial | Mixed use
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	0	2
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 0	$ 1,215
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	0	2
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 0	$ 1,215
Real estate | Commercial | Industrial & warehouse
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	1	1
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 506	$ 256
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 0	$ 0
Real estate | Commercial | Other
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	0	2
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 0	$ 2,722
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 0	$ 0
Real estate | Construction
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 0	$ 0
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 0	$ 0
Real estate | TDR Loans on Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	9,789		9,789	43,806
Real estate | TDR Loans on Accrual Status | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	9,800		$ 9,800	43,800
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan		31	24
Real estate | TDR Loans on Accrual Status | Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	5,404		$ 5,404	23,196
Real estate | TDR Loans on Accrual Status | Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	2,190		2,190	15,449
Real estate | TDR Loans on Accrual Status | Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	2,195		2,195	5,161
Real estate | TDR Loans on Nonaccrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	20,294		20,294	8,036
Real estate | TDR Loans on Nonaccrual Status | Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	20,193		20,193	7,533
Real estate | TDR Loans on Nonaccrual Status | Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	101		101	269
Real estate | TDR Loans on Nonaccrual Status | Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		$ 0	$ 234
Commercial business
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	3	6
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 309	$ 1,620
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	1	1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 102	$ 164
Commercial business | TDR Loans on Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	6,862		$ 6,862	8,413
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan		19	11
Commercial business | TDR Loans on Accrual Status | Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	501		$ 501	790
Commercial business | TDR Loans on Accrual Status | Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	6,175		6,175	7,284
Commercial business | TDR Loans on Accrual Status | Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	186		186	339
Commercial business | TDR Loans on Nonaccrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	3,814		3,814	4,942
Commercial business | TDR Loans on Nonaccrual Status | Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	171		171	420
Commercial business | TDR Loans on Nonaccrual Status | Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	2,245		2,245	3,109
Commercial business | TDR Loans on Nonaccrual Status | Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	1,398		$ 1,398	$ 1,413
Residential mortgage
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 0	$ 0
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 0	$ 0
Residential mortgage | TDR Loans on Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Residential mortgage | TDR Loans on Accrual Status | Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Residential mortgage | TDR Loans on Accrual Status | Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Residential mortgage | TDR Loans on Accrual Status | Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Residential mortgage | TDR Loans on Nonaccrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Residential mortgage | TDR Loans on Nonaccrual Status | Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Residential mortgage | TDR Loans on Nonaccrual Status | Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Residential mortgage | TDR Loans on Nonaccrual Status | Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		$ 0	$ 0
Consumer
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan			0	2	9
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 0	$ 13	$ 113
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | loan			0	2	5
Financing Receivable, Troubled Debt Restructuring, Subsequent Default			$ 0	$ 13	$ 30
Consumer | TDR Loans on Accrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	280		$ 280	199
Troubled Debt Restructuring, By Loan Class
Financing Receivable, Modifications, Number of Contracts | loan		10	9
Consumer | TDR Loans on Accrual Status | Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		$ 0	16
Consumer | TDR Loans on Accrual Status | Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	280		280	183
Consumer | TDR Loans on Accrual Status | Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Consumer | TDR Loans on Nonaccrual Status
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	87		87	117
Consumer | TDR Loans on Nonaccrual Status | Payment concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	0		0	0
Consumer | TDR Loans on Nonaccrual Status | Maturity / amortization concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	87		87	117
Consumer | TDR Loans on Nonaccrual Status | Rate concession
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	$ 0		$ 0	$ 0

Loans Receivable and Allowan_14

Loans Receivable and Allowance for Credit Losses - Related Party Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Receivables [Abstract]
Loans and Leases Receivable, Related Parties	$ 92,800	$ 31,900
Loans and Leases Receivable, Related Parties, Period Increase (Decrease)	2,500
Loans and Leases Receivable, Related Parties, Additions	64,200
Loans and Leases, Related Party, Payment	$ 756

Goodwill, Intangible Assets, _3

Goodwill, Intangible Assets, and Servicing Assets - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 464,450	$ 464,450
Finite-Lived Intangible Asset, Expected Amortization, Year One	1,800
Finite-Lived Intangible Asset, Expected Amortization, Year Two	1,600
Finite-Lived Intangible Asset, Expected Amortization, Year Three	1,500
Finite-Lived Intangible Asset, Expected Amortization, Year Four	829
Core Deposits
Finite-Lived Intangible Assets [Line Items]
Gross Amount	20,901	20,901
Accumulated Amortization	(15,175)	(13,230)
Carrying Amount	5,726	7,671
Amortization expense related to core deposit intangible assets	$ 1,900	2,000
Foster Bankshares acquisition | Core Deposits
Finite-Lived Intangible Assets [Line Items]
Amortization Period	10 years
Gross Amount	$ 2,763	2,763
Accumulated Amortization	(2,668)	(2,504)
Carrying Amount	$ 95	259
Wilshire Bancorp acquisition | Core Deposits
Finite-Lived Intangible Assets [Line Items]
Amortization Period	10 years
Gross Amount	$ 18,138	18,138
Accumulated Amortization	(12,507)	(10,726)
Carrying Amount	$ 5,631	$ 7,412
Minimum | Core Deposits
Finite-Lived Intangible Assets [Line Items]
Amortization Period	7 years
Maximum | Core Deposits
Finite-Lived Intangible Assets [Line Items]
Amortization Period	10 years

Property, Plant, and Equipmen_2

Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Gross	$ 114,498	$ 106,756
Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment	(67,639)	(61,089)
Property, Plant and Equipment, Net	46,859	45,667
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	114,498	106,756
Depreciation, Depletion and Amortization	7,900	8,200	$ 8,200
Land
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Gross	11,244	11,244
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	11,244	11,244
Building and Building Improvements
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Gross	24,191	24,018
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	24,191	24,018
Furniture and Fixtures
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Gross	32,347	28,829
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	32,347	28,829
Leasehold Improvements
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Gross	29,061	28,201
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	29,061	28,201
Vehicles
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Gross	123	123
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	123	123
Computer Software, Intangible Asset
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Gross	17,532	14,341
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 17,532	$ 14,341

Leases - Additional Information

Leases - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Extension options, term of extension	5 years
Rent expense	$ 17,800,000	$ 18,300,000	$ 18,600,000
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term for operating leases	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term for operating leases	10 years

Leases - Net Lease Cost (Detail

Leases - Net Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease cost	$ 15,455	$ 15,487
Variable lease cost	4,617	3,205
Sublease income	(687)	(456)
Net lease cost	19,385	18,236
Operating lease right-of-use assets, net	55,034	52,701
Short-term operating lease liability	13,769	12,678
Long-term operating lease liability	$ 45,319	$ 44,625

Leases - Other Information (Det

Leases - Other Information (Details)	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Weighted-average remaining lease term - operating leases	4 years 8 months 12 days	5 years 2 months 12 days
Weighted-average discount rate - operating leases	2.44%	2.43%

Leases - Maturities of Remainin

Leases - Maturities of Remaining Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
2023	$ 15,014
2024	13,937
2025	12,187
2026	11,431
2027	5,918
2028 and thereafter	4,322
Total lease payments	62,809
Less: imputed interest	3,721
Total lease obligations	$ 59,088	$ 57,303

Deposits (Details)

Deposits (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deposits Disclosure [Line Items]
Time Deposits, $250,000 or More	$ 2,385,573,000	$ 1,490,000,000
Brokered deposits	1,180,000,000	810,900,000
Time deposits	4,990,060,000	2,788,353,000
Time Deposit Maturities, Year One	4,973,023,000
Time Deposit Maturities, Year Two	14,861,000
Time Deposit Maturities, Year Three	1,121,000
Time Deposit Maturities, Year Four	550,000
Time Deposit Maturities, Year Five	505,000
Time Deposit Maturities, after Year Five	0
Contractual Maturities, Time Deposits, $250,000 or More, Three Months or Less	242,755,000
Contractual Maturities, Time Deposits, $250,000 or More, Three Months Through Six Months	509,744,000
Contractual Maturities, Time Deposits, $250,000 or More, Six Months Through Twelve Months	1,629,667,000
Contractual Maturities, $250,000 or More, after 12 months	3,407,000
Interest Expense, Money Market Deposits	68,961,000	22,867,000	$ 34,529,000
Interest Expense, Savings Deposits	3,802,000	3,623,000	3,475,000
Interest Expense, Time Deposits	42,076,000	15,521,000	72,365,000
Interest Expense, Deposits	114,839,000	42,011,000	$ 110,369,000
Money market and NOW accounts
Deposits Disclosure [Line Items]
Brokered deposits	70,200,000	770,000,000
Time deposit accounts
Deposits Disclosure [Line Items]
Brokered deposits	1,110,000,000	40,900,000
California State Treasurer
Deposits Disclosure [Line Items]
Time Deposits, $250,000 or More	$ 300,000,000	300,000,000
Required eligible collateral pledge on outstanding deposits, minimum percentage	110%
Securities pledged as collateral	$ 348,000,000	$ 359,800,000

Borrowings - Narrative (Details

Borrowings - Narrative (Details)	Dec. 31, 2022 USD ($) security	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
FHLB and FRB borrowings	$ 865,000,000	$ 300,000,000
Percent of assets	25%
Maximum borrowing capacity	$ 4,590,000,000	4,450,000,000
Percent outstanding advances	100%
FHLB and FRB borrowings	$ 600,000,000	300,000,000
Remaining borrowing capacity	3,980,000,000
Federal Home Loan Bank, Advances, Maturities Summary, Fixed Rate	100,000,000
Federal Home Loan Bank, Advances, Maturities Summary, Floating Rate	500,000,000
FHLB Advances
Debt Instrument [Line Items]
Loans pledged as collateral	$ 0	$ 0
Weighted Average
Debt Instrument [Line Items]
FHLB advances, interest rate	3.40%	0.92%
Minimum
Debt Instrument [Line Items]
FHLB advances, interest rate	3.24%
Maximum
Debt Instrument [Line Items]
FHLB advances, interest rate	4.20%
Qualifying Loans
Debt Instrument [Line Items]
Asset balance used to determine maximum borrowing capacity from federal reserve bank	$ 794,100,000
FRB Discount Window
Debt Instrument [Line Items]
Advances from Federal Reserve Bank	$ 265,000,000	$ 0
Percent of qualifying assets (up to)	99%
Number of securities pledged as collateral | security	1
Securities pledged as collateral	$ 1,000,000
Total available borrowing capacity	$ 405,100,000	606,600,000
Interest rate at period end	4.50%
Unsecured Credit Facility with FHLB
Debt Instrument [Line Items]
Unsecured credit facility, maximum borrowing capacity	$ 81,200,000	81,200,000
Mortgage Loans on Real Estate
Debt Instrument [Line Items]
Pledged as collateral, FHLB	$ 8,080,000,000	$ 6,960,000,000

Subordinated Debentures and C_3

Subordinated Debentures and Convertible Notes - Narrative (Details)		3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 07, 2018 $ / shares	Dec. 31, 2022 USD ($) grantorTrust	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) grantorTrust	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jun. 06, 2018 USD ($)
Subordinated Borrowing [Line Items]
Number of wholly owned subsidiary grantor trusts | grantorTrust		9		9
Amount of pooled trust preferred securities issued		$ 126,000,000		$ 126,000,000
Right to defer consecutive payments of interest, maximum term				5 years
Carrying value of Debentures		106,565,000		$ 106,565,000	$ 105,354,000
Interest on other borrowings and convertible notes				11,330,000	9,190,000	$ 14,146,000
Retained Earnings [Member]
Subordinated Borrowing [Line Items]
Convertible debt, cumulative effect on retained earnings before tax					10,715,000
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06 | Additional Paid-in Capital [Member]
Subordinated Borrowing [Line Items]
Adjustments to additional paid in capital, equity component of convertible debt, net of tax		18,300,000
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06 | Retained Earnings [Member]
Subordinated Borrowing [Line Items]
Convertible debt, cumulative effect on retained earnings before tax			$ 10,700,000
Other assets
Subordinated Borrowing [Line Items]
Investment in common trust securities		3,900,000		3,900,000	3,900,000
Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying value of Debentures		106,565,000		106,565,000	105,400,000
Remaining discounts on acquired Debentures		23,300,000		23,300,000	24,500,000
Trust Preferred Securities Subject to Mandatory Redemption
Subordinated Borrowing [Line Items]
Amount of pooled trust preferred securities issued		$ 126,000,000		$ 126,000,000
Percent included in tier one capital, maximum		25%		25%
Excess of percent threshold included in tier two capital		25%		25%
Convertible Notes
Subordinated Borrowing [Line Items]
Aggregate principal amount issued		$ 217,500,000		$ 217,500,000			$ 217,500,000
Interest rate							2%
Initial conversion rate	0.0450760			0.0450760
Initial conversion price (in dollars per share) | $ / shares	$ 22.18
Premium percentage to closing stock price on date of pricing of the notes	22.50%
Call option, percentage of principal amount in cash	100%
Repurchase or put option, percentage of principal amount in cash	100%
Interest expense on convertible notes				$ 5,300,000	$ 5,300,000	$ 9,500,000
Number of outstanding years for which non-cash interest expense and issuance cost capitalization expense will be recorded	5 years		5 years	5 years	5 years	5 years
Convertible Notes | Discount Rate
Subordinated Borrowing [Line Items]
Discount rate	0.0425

Subordinated Debentures and C_4

Subordinated Debentures and Convertible Notes - Summary of Trust Preferred Securities and Debentures (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 126,000,000
Carrying Value of Debentures	106,565,000	$ 105,354,000
Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	126,000,000
Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 106,565,000	$ 105,400,000
Nara Capital Trust III
Subordinated Borrowing [Line Items]
Current Rate	7.919%
Nara Capital Trust III | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 5,000,000
Nara Capital Trust III | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 5,155,000
Nara Statutory Trust IV
Subordinated Borrowing [Line Items]
Current Rate	6.929%
Nara Statutory Trust IV | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 5,000,000
Nara Statutory Trust IV | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 5,155,000
Nara Statutory Trust V
Subordinated Borrowing [Line Items]
Current Rate	7.688%
Nara Statutory Trust V | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 10,000,000
Nara Statutory Trust V | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 10,310,000
Nara Statutory Trust VI
Subordinated Borrowing [Line Items]
Current Rate	6.419%
Nara Statutory Trust VI | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 8,000,000
Nara Statutory Trust VI | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 8,248,000
Center Capital Trust I
Subordinated Borrowing [Line Items]
Current Rate	6.929%
Center Capital Trust I | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 18,000,000
Center Capital Trust I | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 14,937,000
Wilshire Trust II
Subordinated Borrowing [Line Items]
Current Rate	6.528%
Wilshire Trust II | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 20,000,000
Wilshire Trust II | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 16,435,000
Wilshire Trust III
Subordinated Borrowing [Line Items]
Current Rate	6.169%
Wilshire Trust III | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 15,000,000
Wilshire Trust III | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 11,722,000
Wilshire Trust IV
Subordinated Borrowing [Line Items]
Current Rate	6.149%
Wilshire Trust IV | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 25,000,000
Wilshire Trust IV | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 18,932,000
Saehan Capital Trust I
Subordinated Borrowing [Line Items]
Current Rate	6.35%
Saehan Capital Trust I | Trust Preferred Security Amount
Subordinated Borrowing [Line Items]
Trust Preferred Security Amount	$ 20,000,000
Saehan Capital Trust I | Carrying Value of Debentures
Subordinated Borrowing [Line Items]
Carrying Value of Debentures	$ 15,671,000

Subordinated Debentures and C_5

Subordinated Debentures and Convertible Notes - Schedule of Convertible Debt (Details) - Convertible Notes - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
	Jun. 07, 2018	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Debt Instrument, Convertible, Remaining Discount Amortization Period	5 years	5 years	5 years	5 years	5 years
Debt Instrument, Convertible, Gross Carrying Amount [Abstract]
Convertible notes principal balance			$ 217,500	$ 217,500	$ 217,500
Debt Instrument, Unamortized Discount					10,929
Discount					10,951
Debt Instrument, Unamortized Discount, Gross					21,880
Issuance costs to be capitalized			(4,119)	(4,119)	(4,119)
Carrying balance of convertible notes			213,381	213,381	191,501
Total Capitalization
Issuance costs to be capitalized			3,767	2,828	2,113
Carrying balance of convertible notes			3,767	2,828	13,064
Carrying Amount
Convertible notes principal balance			217,500	217,500	217,500
Issuance costs to be capitalized			(352)	(1,291)	(2,006)
Carrying balance of convertible notes			$ 217,148	$ 216,209	$ 204,565

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax provision	$ 18,210,000	$ 19,679,000	$ 18,631,000	$ 21,251,000	$ 19,056,000	$ 19,912,000	$ 17,767,000	$ 13,965,000	$ 77,771,000	$ 70,700,000	$ 30,776,000
Pretax income	69,913,000	$ 73,427,000	$ 70,719,000	$ 81,989,000	70,679,000	$ 75,411,000	$ 71,530,000	$ 57,652,000	$ 296,048,000	$ 275,272,000	$ 142,291,000
Effective income tax rate									26.27%	25.68%	21.63%
Unrecognized tax benefits	2,951,000				3,278,000				$ 2,951,000	$ 3,278,000	$ 2,750,000
Interest accrued	359,000				387,000				359,000	387,000
Penalties accrued	0				$ 0				0	$ 0
Decrease in unrecognized tax benefits is reasonably possible	$ 1,200,000								$ 1,200,000

Income Taxes Table (Details)

Income Taxes Table (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Current Federal Tax Expense (Benefit)									$ 52,676	$ 28,382	$ 28,284
Current State and Local Tax Expense (Benefit)									34,050	22,692	20,490
Current Income Tax Expense (Benefit)									86,726	51,074	48,774
Deferred Federal Income Tax Expense (Benefit)									(6,366)	12,599	(11,079)
Deferred State and Local Income Tax Expense (Benefit)									(2,589)	7,027	(6,919)
Deferred Income Tax Expense (Benefit)									(8,955)	19,626	(17,998)
Federal Income Tax Expense (Benefit), Continuing Operations									46,310	40,981	17,205
State and Local Income Tax Expense (Benefit), Continuing Operations									31,461	29,719	13,571
Income tax provision	$ 18,210	$ 19,679	$ 18,631	$ 21,251	$ 19,056	$ 19,912	$ 17,767	$ 13,965	$ 77,771	$ 70,700	$ 30,776
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent									21%	21%	21%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent									8.58%	8.59%	8.56%
Effective Income Tax Rate Reconciliation, TaxCredits, Investment									(2.99%)	(3.75%)	(7.34%)
Effective Income Tax Rate Reconciliation, Tax Credit, Bank owned, Percent life insurance									(0.22%)	(0.17%)	(0.05%)
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent									(0.26%)	(0.17%)	(0.38%)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent									0.15%	(0.04%)	(2.76%)
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent									(0.23%)	0.07%	1.63%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent									0.24%	0.15%	0.97%
Effective income tax rate									26.27%	25.68%	21.63%
Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Financing Receivable, Allowance for Credit Loss	53,225				46,367				$ 53,225	$ 46,367
Deferred Tax Assets, Operating Loss Carryforwards	1,396				1,552				1,396	1,552
Deferred Tax Assets, Investment Security Provision	469				469				469	469
Deferred Tax Assets, State Taxes	5,210				3,403				5,210	3,403
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	45				86				45	86
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Other	107				103				107	103
Deferred Tax Assets, Investments	3				1,721				3	1,721
Deferred Tax Assets, Nonaccrual Loan Interest	4,044				4,290				4,044	4,290
Deferred Tax Assets, Other Real Estate Owned	455				421				455	421
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost	4,322				3,122				4,322	3,122
Deferred Tax Assets, Lease Expense, Right-of-Use Asset	18,751				18,209				18,751	18,209
Deferred Tax Asset, Debt Securities, Available-for-Sale, Unrealized Loss	96,319				4,583				96,319	4,583
Deferred Tax Assets, Tax Deferred Expense, Other	8,178				5,782				8,178	5,782
Deferred Tax Assets, Gross	192,524				90,108				192,524	90,108
Deferred Tax Liabilities, Purchase Accounting Fair Value Adjustment	(6,583)				(5,978)				(6,583)	(5,978)
Deferred Tax Liabilities, Depreciation	(293)				(6)				(293)	(6)
Deferred Tax Liabilities, Tax Deferred Income	(332)				(257)				(332)	(257)
Deferred Tax Liabilities, Deferred Loan Costs	(9,983)				(10,615)				(9,983)	(10,615)
Deferred Tax Liabilities, State Taxes Deferred and Other	(3,875)				(3,332)				(3,875)	(3,332)
Deferred Tax Liabilities, Prepaid Expenses	(1,677)				(942)				(1,677)	(942)
Deferred Tax Liabilities, Intangible Assets	(1,908)				(2,513)				(1,908)	(2,513)
Deferred Tax Liabilities, Right-of-Use Asset	(17,464)				(16,746)				(17,464)	(16,746)
Deferred Tax Liabilities, Gross	(42,115)				(40,389)				(42,115)	(40,389)
Deferred Tax Assets, Net	150,409				49,719				150,409	49,719
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits	2,951				3,278				2,951	3,278	$ 2,750
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions									434	528
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions									(761)	0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	2,600				2,900				2,600	2,900
Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	5,798				6,444				5,798	6,444
Operating Loss Carryforwards Limitations On Use Annual Limitation Amount	646				646				646	646
Internal Revenue Service (IRS) | Ownership Change | Saehan Bank
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	1,809				2,035				1,809	2,035
Operating Loss Carryforwards Limitations On Use Annual Limitation Amount	226				226				226	226
Internal Revenue Service (IRS) | Ownership Change | Pacific International Bancorp. Inc.
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	3,989				4,409				3,989	4,409
Operating Loss Carryforwards Limitations On Use Annual Limitation Amount	420				420				420	420
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	2,261				2,488				2,261	2,488
Operating Loss Carryforwards Limitations On Use Annual Limitation Amount	226				0				226	0
State and Local Jurisdiction | Ownership Change | Saehan Bank
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	2,261				2,488				2,261	2,488
Operating Loss Carryforwards Limitations On Use Annual Limitation Amount	226				0				226	0
State and Local Jurisdiction | Ownership Change | Pacific International Bancorp. Inc.
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0				0				0	0
Operating Loss Carryforwards Limitations On Use Annual Limitation Amount	$ 0				$ 0				$ 0	$ 0

Stock-Based Compensation - Plan

Stock-Based Compensation - Plan Description (Details) - shares	12 Months Ended
	Dec. 31, 2022	May 23, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future grant (in shares)	1,443,000
ISOs, SARs, and NQSOs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term	10 years
ISOs, SARs, and NQSOs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
ISOs, SARs, and NQSOs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Restricted stock, performance shares and performance units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, restriction period	1 year
Time-based vesting of grants | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, restriction period	3 years
2019 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares initially available for grant to participants (in shares)		4,400,000
2019 Stock Incentive Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price of common stock, percent	100%
2019 Stock Incentive Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term	10 years

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Option Activity (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based Compensation Arrangement, Future Expense, Next Twelve Months	$ 13,654
Share-based Compensation Arrangement, Future Expense, Two Years	9,796
Share-based Compensation Arrangement, Future Expense, Three Years	3,510
Share-based Compensation Arrangement, Future Expense, Four Years	343
Share-based Compensation Arrangement, Future Expense, Five Years	0
Total	$ 27,303
Stock options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding - beginning of period (in shares) | shares	814,877
Granted (in shares) | shares	0
Exercised (in shares) | shares	(105,510)
Expired (in shares) | shares	(60,000)
Forfeited (in shares) | shares	0
Outstanding - end of period (in shares) | shares	649,367
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding - beginning of period, weighted-average exercise price per share (usd per share) | $ / shares	$ 15.17
Granted - weighted average exercise price (usd per share) | $ / shares	0
Exercised - weighted average exercise price (usd per share) | $ / shares	5.02
Expired - weighted-average exercise price per share (usd per share) | $ / shares	17.18
Forfeited - weighted average exercise price (usd per share) | $ / shares	0
Outstanding - end of period, weighted-average exercise price per share (usd per share) | $ / shares	$ 16.63
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options exercisable - end of period (in shares) | shares	649,367
Options exercisable, weighted-average exercise price per share (usd per share) | $ / shares	$ 16.63
Outstanding, weighted-average remaining contractual life (years)	2 years 11 months 1 day
Options exercisable, weighted-average remaining contractual life (years)	2 years 11 months 1 day
Outstanding, aggregate intrinsic value	$ 0
Options exercisable, aggregate intrinsic value	$ 0

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock and Performance Unit Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Allocated share-based compensation expense	$ 12,300,000	$ 8,400,000	$ 8,100,000
Unrecognized compensation expense	$ 27,303,000
Total compensation cost not yet recognized, period for recognition	1 year 8 months 12 days
Restricted stock and performance units
Number of Shares
Outstanding - beginning of period (in shares)	1,561,197
Granted (in shares)	1,007,942
Vested (in shares)	(634,514)
Forfeited (in shares)	(174,252)
Outstanding - end of period (in shares)	1,760,373	1,561,197
Weighted-Average Grant Date Fair Value
Outstanding - beginning of period (in dollars per share)	$ 12.08
Granted (in dollars per share)	15.85
Vested (in dollars per share)	12.65
Forfeited (in dollars per share)	13.55
Outstanding - end of period (in dollars per share)	$ 13.89	$ 12.08
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Equity instruments other than options, vested in period	$ 9,700,000	$ 9,500,000	3,300,000
Employee Stock Purchase Plan (ESPP)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Allocated share-based compensation expense	$ 284,000	$ 431,000	$ 250,000
Discount rate to the closing price, purchase date	10%
Maximum amount of common shares purchased under ESPP of employee's base salary, percent	20%
Cap amount for shares purchased per employee	$ 25,000

Compensation Related Costs, R_2

Compensation Related Costs, Retirement Benefits (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Deferred Compensation Arrangement with Individual, Requisite Service Period	3 months
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	75%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	8%
Defined Contribution Plan, Cost	$ 5,900,000	$ 5,800,000	$ 5,400,000
Pension Plan | Vested After Two Years of Service
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	25%
Pension Plan | Vested After Three Years of Service
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	50%
Pension Plan | Vested After Four Years of Service
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	75%
Pension Plan | Vested After Five Years of Service
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	100%
Postretirement Life Insurance
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost	$ 6,800,000	8,600,000	9,000,000
Defined Benefit Plan, Plan Assets, Benefits Paid	1,200,000	1,300,000	1,000,000
Defined Benefit Plan, Base Amount of Death Proceeds, Annual Percentage Increase Until Retirement Age Reached	$ 3
Defined Benefit Plan, Period Death Benefit Required to be Paid Following Participant's Death	90 days
Directors And Officers | Deferred Compensation, Excluding Share-Based Payments and Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Deferred Compensation Liability, Current and Noncurrent	$ 482,000	593,000
Deferred Compensation Arrangement with Individual, Compensation Expense	2,000	5,000	9,000
Executive Officer | Long Term Incentive Plan
Defined Benefit Plan Disclosure [Line Items]
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 555,000	$ 521,000	$ 490,000
Executive Officer | Long Term Incentive Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Deferred Compensation Arrangement with Individual, Requisite Service Period	5 years
Executive Officer | Long Term Incentive Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Deferred Compensation Arrangement with Individual, Requisite Service Period	10 years

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Supply Commitment [Line Items]
Loss contingencies for all legal claims	$ 229,000	$ 52,000
Loss contingencies for all legal claims	229,000	52,000
Commitments to extend credit
Supply Commitment [Line Items]
Commitments and letters of credit	2,856,263,000	2,329,421,000
Standby letters of credit
Supply Commitment [Line Items]
Commitments and letters of credit	132,538,000	126,137,000
Other letters of credit
Supply Commitment [Line Items]
Commitments and letters of credit	22,376,000	56,333,000
Commitments to fund investments in affordable housing partnerships
Supply Commitment [Line Items]
Commitments and letters of credit	$ 11,792,000	$ 9,514,000

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured at Fair Value, Recurring (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Costs to sell percentage	8.50%
Assets:
Equity investments with readily determinable fair value	$ 42,396	$ 57,860
Recurring basis
Assets:
Equity investments with readily determinable fair value	4,303	26,823
Recurring basis | Designated as Hedging Instrument
Liabilities:
Derivative liabilities	2,160	93
Recurring basis | Interest rate swaps
Assets:
Derivative assets	73,389	17,907
Liabilities:
Derivative liabilities	73,389	17,907
Recurring basis | Mortgage banking derivatives
Assets:
Derivative assets	29	247
Liabilities:
Derivative liabilities	23	76
Recurring basis | Other derivatives
Assets:
Derivative assets	25,462	2,291
Liabilities:
Derivative liabilities	2,160	93
Recurring basis | Collateralized mortgage obligations
Assets:
Investment securities available for sale:	793,699	1,026,430
Recurring basis | Mortgage-backed securities: Residential
Assets:
Investment securities available for sale:	453,177	759,224
Recurring basis | Mortgage-backed securities: Commercial
Assets:
Investment securities available for sale:	368,287	599,402
Recurring basis | Corporate securities
Assets:
Investment securities available for sale:	18,857	22,484
Recurring basis | Municipal securities
Assets:
Investment securities available for sale:	182,752	105,284
Recurring basis | Asset-backed Securities
Assets:
Investment securities available for sale:	147,604	153,451
Recurring basis | US Treasury Notes Securities
Assets:
Investment securities available for sale:	3,886
Recurring basis | Agency Securities
Assets:
Investment securities available for sale:	3,867
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Equity investments with readily determinable fair value	4,303	26,823
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate swaps
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage banking derivatives
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other derivatives
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateralized mortgage obligations
Assets:
Investment securities available for sale:	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities: Residential
Assets:
Investment securities available for sale:	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities: Commercial
Assets:
Investment securities available for sale:	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate securities
Assets:
Investment securities available for sale:	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal securities
Assets:
Investment securities available for sale:	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed Securities
Assets:
Investment securities available for sale:	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | US Treasury Notes Securities
Assets:
Investment securities available for sale:	3,886
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Agency Securities
Assets:
Investment securities available for sale:	0
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets:
Equity investments with readily determinable fair value	0	0
Recurring basis | Significant Other Observable Inputs (Level 2) | Designated as Hedging Instrument
Liabilities:
Derivative liabilities		0
Recurring basis | Significant Other Observable Inputs (Level 2) | Interest rate swaps
Assets:
Derivative assets	73,389	17,907
Liabilities:
Derivative liabilities	73,389	17,907
Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage banking derivatives
Assets:
Derivative assets	29	247
Liabilities:
Derivative liabilities	23	76
Recurring basis | Significant Other Observable Inputs (Level 2) | Other derivatives
Assets:
Derivative assets	25,462	2,291
Liabilities:
Derivative liabilities	2,128	0
Recurring basis | Significant Other Observable Inputs (Level 2) | Collateralized mortgage obligations
Assets:
Investment securities available for sale:	793,699	1,026,430
Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities: Residential
Assets:
Investment securities available for sale:	453,177	759,224
Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities: Commercial
Assets:
Investment securities available for sale:	368,287	599,402
Recurring basis | Significant Other Observable Inputs (Level 2) | Corporate securities
Assets:
Investment securities available for sale:	18,857	22,484
Recurring basis | Significant Other Observable Inputs (Level 2) | Municipal securities
Assets:
Investment securities available for sale:	181,809	104,246
Recurring basis | Significant Other Observable Inputs (Level 2) | Asset-backed Securities
Assets:
Investment securities available for sale:	147,604	153,451
Recurring basis | Significant Other Observable Inputs (Level 2) | US Treasury Notes Securities
Assets:
Investment securities available for sale:	0
Recurring basis | Significant Other Observable Inputs (Level 2) | Agency Securities
Assets:
Investment securities available for sale:	3,867
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets:
Equity investments with readily determinable fair value	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Interest rate swaps
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Mortgage banking derivatives
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Other derivatives
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	32	93
Recurring basis | Significant Unobservable Inputs (Level 3) | Collateralized mortgage obligations
Assets:
Investment securities available for sale:	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities: Residential
Assets:
Investment securities available for sale:	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities: Commercial
Assets:
Investment securities available for sale:	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Corporate securities
Assets:
Investment securities available for sale:	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Municipal securities
Assets:
Investment securities available for sale:	943	1,038
Recurring basis | Significant Unobservable Inputs (Level 3) | Asset-backed Securities
Assets:
Investment securities available for sale:	0	$ 0
Recurring basis | Significant Unobservable Inputs (Level 3) | US Treasury Notes Securities
Assets:
Investment securities available for sale:	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Agency Securities
Assets:
Investment securities available for sale:	$ 0
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Costs to sell percentage	8.50%
Discount Rate | Accounts Receivable | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.20
Discount Rate | Accounts Receivable | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.60
Discount Rate | Inventory | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.50
Discount Rate | Inventory | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.70

Fair Value Measurements - Rollf

Fair Value Measurements - Rollforward of Level 3 Assets (Details) - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Other derivatives
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 93	$ 398
Change in fair value included in other comprehensive (loss) income	(61)	(305)
Ending Balance	32	93
Municipal Bonds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	1,038	1,022
Change in fair value included in other comprehensive (loss) income	(95)	16
Ending Balance	$ 943	$ 1,038

Fair Value Measurements - Ass_2

Fair Value Measurements - Assets Measured at Fair Value, Non-Recurring (Details) - Non-recurring basis - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Real estate loans
Assets:
Assets	$ 807	$ 12,293
Commercial business
Assets:
Assets	2,744	3,656
OREO
Assets:
Assets	1,050	2,167
Loans held for sale, net
Assets:
Assets	48,795	26,154
Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate loans
Assets:
Assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial business
Assets:
Assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | OREO
Assets:
Assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans held for sale, net
Assets:
Assets	0	0
Significant Other Observable Inputs (Level 2) | Real estate loans
Assets:
Assets	0	0
Significant Other Observable Inputs (Level 2) | Commercial business
Assets:
Assets	0	0
Significant Other Observable Inputs (Level 2) | OREO
Assets:
Assets	0	0
Significant Other Observable Inputs (Level 2) | Loans held for sale, net
Assets:
Assets	48,795	26,154
Significant Unobservable Inputs (Level 3) | Real estate loans
Assets:
Assets	807	12,293
Significant Unobservable Inputs (Level 3) | Commercial business
Assets:
Assets	2,744	3,656
Significant Unobservable Inputs (Level 3) | OREO
Assets:
Assets	1,050	2,167
Significant Unobservable Inputs (Level 3) | Loans held for sale, net
Assets:
Assets	$ 0	$ 0

Fair Value Measurements - Total

Fair Value Measurements - Total Net Gains Losses on Assets Measured at Fair Value on a Non-Recurring Basis (Details) - Change during period - Non-recurring basis - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Loans Receivable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gains (losses), fair value	$ (3,989)	$ (21,074)
Loans Receivable | Real estate loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gains (losses), fair value	(727)	(1,758)
Loans Receivable | Commercial business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gains (losses), fair value	(2,526)	(2,088)
OREO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total gains (losses), fair value	$ (941)	$ (1,275)

Fair Value Measurements - Carry

Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financial Assets:
Equity investments without readily determinable fair values	$ 38,100	$ 31,037
Financial Liabilities:
Investment securities held to maturity, at amortized cost	271,066	0
Investment securities held to maturity, fair value	258,407	0
Level 1 | Carrying Amount
Financial Assets:
Cash and cash equivalents	506,776	316,266
Financial Liabilities:
Convertible notes, net	217,148	216,209
Level 1 | Estimated Fair Value
Financial Assets:
Cash and cash equivalents	506,776	316,266
Financial Liabilities:
Convertible notes, net	213,937	214,612
Level 2/3 | Carrying Amount
Financial Assets:
Accrued interest receivable	55,460	41,842
Level 2/3 | Estimated Fair Value
Financial Assets:
Accrued interest receivable	55,460	41,842
Level 2 | Carrying Amount
Financial Assets:
Interest bearing deposits in other financial institutions	735	12,851
Equity investments without readily determinable fair values	38,093
Loans held for sale	49,245	99,049
Customers’ liabilities on acceptances	818	1,521
Financial Liabilities:
Noninterest bearing deposits	4,849,493	5,751,870
Saving and other interest bearing demand deposits	5,899,248	6,500,227
Time deposits	4,990,060	2,788,353
FHLB and FRB borrowings, Fair Value Disclosure	865,000
FHLB and FRB borrowings		300,000
Subordinated debentures	106,565	105,354
Accrued interest payable	26,668	4,272
Acceptances outstanding	818	1,521
Level 2 | Estimated Fair Value
Financial Assets:
Interest bearing deposits in other financial institutions	733	12,853
Equity investments without readily determinable fair values	38,093	31,037
Loans held for sale	49,248	103,767
Customers’ liabilities on acceptances	818	1,521
Financial Liabilities:
Noninterest bearing deposits	4,849,493	5,751,870
Saving and other interest bearing demand deposits	5,899,248	6,500,227
Time deposits	5,020,093	2,790,596
FHLB and FRB borrowings, Fair Value Disclosure	867,088
FHLB and FRB borrowings		301,936
Subordinated debentures	107,944	117,961
Accrued interest payable	26,668	4,272
Acceptances outstanding	818	1,521
Level 3 | Carrying Amount
Financial Assets:
Loans receivable, net	15,241,181	13,812,193
Servicing assets, net	11,628	10,418
Level 3 | Estimated Fair Value
Financial Assets:
Loans receivable, net	14,745,881	13,698,579
Servicing assets, net	$ 17,375	$ 13,500

Derivative Financial Instrume_3

Derivative Financial Instruments - Summary of Derivative Notional Amounts and Fair Values (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 1,225,000,000	$ 100,000,000
Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	2,168,615,000	1,318,722,000
Interest rate swaps | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	614,000,000	100,000,000
Interest rate swaps | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	1,013,407,000	588,685,000
Interest rate swaps | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	1,013,407,000	588,685,000
Interest Rate Swap, forward starting | Designated as Hedging Instrument | Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	111,000,000
Interest Rate Swap, forward starting | Designated as Hedging Instrument | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	500,000,000
Risk participation agreement | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	134,282,000	123,927,000
Interest Rate Lock Commitments and Forward Contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	2,801,000	17,425,000
Foreign Exchange Contract | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	2,359,000
Foreign Exchange Contract | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	2,359,000
Other assets | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	25,383,000	2,291,000
Other assets | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	73,497,000	18,154,000
Other assets | Interest rate swaps | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		100,000,000
Estimated fair value	19,773,000	2,291,000
Other assets | Interest rate swaps | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	73,059,000	3,001,000
Other assets | Interest rate swaps | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	330,000	14,906,000
Other assets | Interest Rate Swap, forward starting | Designated as Hedging Instrument | Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	5,428,000
Other assets | Interest Rate Swap, forward starting | Designated as Hedging Instrument | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	182,000
Other assets | Risk participation agreement | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	0	0
Other assets | Interest Rate Lock Commitments and Forward Contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	29,000	247,000
Other assets | Foreign Exchange Contract | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange contracts	79,000
Other assets | Foreign Exchange Contract | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange contracts	0
Other liabilities | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	2,055,000	0
Other liabilities | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	73,517,000	18,076,000
Other liabilities | Interest rate swaps | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	1,227,000	0
Other liabilities | Interest rate swaps | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	330,000	14,906,000
Other liabilities | Interest rate swaps | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	73,059,000	3,001,000
Other liabilities | Interest Rate Swap, forward starting | Designated as Hedging Instrument | Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	0
Other liabilities | Interest Rate Swap, forward starting | Designated as Hedging Instrument | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimated fair value	828,000
Other liabilities | Risk participation agreement | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	32,000	93,000
Other liabilities | Interest Rate Lock Commitments and Forward Contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	23,000	$ 76,000
Other liabilities | Foreign Exchange Contract | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange contracts	0
Other liabilities | Foreign Exchange Contract | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange contracts	$ 73,000

Derivative Financial Instrume_4

Derivative Financial Instruments - Narrative (Details)	3 Months Ended								12 Months Ended
	Dec. 31, 2022 USD ($) derivative	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) derivative	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) derivative	Dec. 31, 2021 USD ($) derivative	Dec. 31, 2020 USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net									$ (2,000,000)
Interest Expense	$ 73,716,000	$ 35,996,000	$ 16,286,000	$ 11,696,000	$ 11,851,000	$ 12,570,000	$ 13,627,000	$ 15,714,000	137,694,000	$ 53,762,000	$ 131,380,000
Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	2,168,615,000				1,318,722,000				2,168,615,000	1,318,722,000
Not Designated as Hedging Instrument | Other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	73,497,000				18,154,000				73,497,000	18,154,000
Not Designated as Hedging Instrument | Other liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	73,517,000				18,076,000				73,517,000	18,076,000
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 1,225,000,000				100,000,000				$ 1,225,000,000	100,000,000
Number of derivative instruments held	17								17
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	$ 14,300,000								$ 14,300,000
Risk participation agreement | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	134,282,000				123,927,000				134,282,000	123,927,000
Risk participation agreement | Not Designated as Hedging Instrument | Other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	0				0				0	0
Risk participation agreement | Not Designated as Hedging Instrument | Other liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	32,000				93,000				32,000	93,000
Interest rate swaps
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, collateral, obligation to return cash	9,100,000				9,400,000				9,100,000	9,400,000
Interest rate swaps | Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest Expense										(319,000)
Interest rate swaps | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 614,000,000				100,000,000				$ 614,000,000	$ 100,000,000
Weighted average remaining term (years)									4 years 1 month 6 days	3 years 3 months 18 days
Interest rate swaps | Designated as Hedging Instrument | Other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount					$ 100,000,000					$ 100,000,000
Interest rate swaps | Designated as Hedging Instrument | Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments held | derivative	13				1				13	1
Interest Rate Swap, forward starting | Designated as Hedging Instrument | Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 111,000,000								$ 111,000,000
Weighted average remaining term (years)									3 years 10 months 24 days
Interest Rate Swap, forward starting | Designated as Hedging Instrument | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 500,000,000								$ 500,000,000
Number of derivative instruments held	2								2
Weighted average remaining term (years)									3 years
Interest Rate Lock Commitments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 2,800,000				$ 17,400,000				$ 2,800,000	$ 17,400,000
Foreign Exchange Contract | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) on fair value of foreign exchange contracts									6,000	0
Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, collateral, obligation to return cash	$ 3,100,000				$ 37,100,000				$ 3,100,000	$ 37,100,000

Stockholders' Equity - Discussi

Stockholders' Equity - Discussion of Equity (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2019
Equity [Abstract]
Total stockholders’ equity	$ 2,019,328,000				$ 2,092,983,000				$ 2,019,328,000	$ 2,092,983,000	$ 2,053,745,000	$ 2,036,011,000
Share repurchase program, authorized amount					$ 50,000,000		$ 50,000,000			$ 50,000,000			$ 50,000,000
Common stock repurchased and recorded as treasury stock (in shares)									1,038,986	3,682,268	2,716,034
Repurchase of treasury stock									$ 14,667,000	$ 50,000,000	$ 36,180,000
Dividends paid (in dollars per share)	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.14
Dividends, Common Stock, Cash									67,126,000	68,666,000	69,182,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax									2,000,000	(319,000)
Other Comprehensive Income (Loss), Reclassification adjustment from AOCI for Sale of Securities and Cash Flow Hedges, Net of Tax											(7,600,000)
Other Comprehensive Income (Loss), Reclassification adjustment from AOCI for Sale of Securities and Cash Flow Hedges, Net of Tax											7,600,000
Reclassification from AOCI, Debt Securities transferred from AFS to HTM amortization of unrealized losses, before tax									$ 2,300,000	$ 0	$ 0

Stockholders' Equity - Changes

Stockholders' Equity - Changes in Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 2,092,983	$ 2,053,745	$ 2,036,011
Unrealized net (losses) gains on securities available for sale	(297,919)	(65,551)	41,562
OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), before Tax	(36,576)	0	0
Unrealized net gains (losses) on interest rate swaps used for cash flow hedge	23,062	2,893	(602)
Reclassification adjustments for net losses (gains) realized in net income	253	319	(7,583)
Tax effect	91,735	18,174	(9,773)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(219,445)	(44,165)	23,604
Balance at end of period	2,019,328	2,092,983	2,053,745
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(11,412)	32,753	9,149
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(219,445)	(44,165)	23,604
Balance at end of period	$ (230,857)	$ (11,412)	$ 32,753

Regulatory Matters (Details)

Regulatory Matters (Details) $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Bank Subsidiary
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity Tier 1 capital, Actual Amount	$ 2,049,973	$ 1,947,914
Common equity Tier 1 capital, Actual Ratio	0.1203	0.1296
Total capital (to risk-weighted assets), Amount
Total capital, Actual	$ 2,189,607	$ 2,056,675
Tier I capital (to risk-weighted assets), Amount
Tier 1 capital, Actual	2,049,973	1,947,914
Tier I capital (to average assets), Amount
Tier 1 capital, Actual	$ 2,049,973	$ 1,947,914
Total capital and Tier I capital (to risk-weighted assets), Ratio
Total capital (to Risk Weighted Assets), Actual	0.1285	0.1368
Total capital (to Risk Weighted Assets), Required For Capital Adequacy Purposes	0.0800	0.0800
Tier 1 capital (to Risk Weighted Assets), Actual	0.1203	0.1296
Tier 1 capital (to Risk Weighted Assets), Required For Capital Adequacy Purposes	0.0600	0.0600
Tier 1 capital (to Risk Weighted Assets), Required To Be Well Capitalized Under Prompt Corrective Action Provisions	0.0800	0.0800
Tier I capital (to average assets), Ratio
Tier I Capital (to Average Assets), Actual (Leverage)	0.1094	0.1120
Tier I Capital (to Average Assets), Minimum For Capital Adequacy Purposes (Leverage)	0.0400	0.0400
Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum	$ 766,971	$ 676,328
Total capital, Required For Capital Adequacy Purposes	1,363,504	1,202,361
Tier 1 capital, Required For Capital Adequacy Purposes	1,022,628	901,771
Tier 1 capital, Required For Capital Adequacy Purposes	749,540	695,593
Common equity Tier 1 capital, Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	1,107,847	976,919
Total capital, Required To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 1,704,380	$ 1,502,952
Total capital (to Risk Weighted Assets), Required To Be Well Capitalized Under Prompt Corrective Action Provisions	0.1000	0.1000
Tier 1 capital, Required To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 1,363,504	$ 1,202,361
Tier 1 capital, Required To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 936,925	$ 869,491
Tier I Capital (to Average Assets), Minimum to be Well Capitalized Under Prompt Corrective Action Provisions (Leverage)	0.0500	0.0500
Company
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity Tier 1 capital, Actual Amount	$ 1,799,020	$ 1,657,754
Common equity Tier 1 capital, Actual Ratio	0.1055	0.1103
Total capital (to risk-weighted assets), Amount
Total capital, Actual	$ 2,041,319	$ 1,867,968
Total capital, Minimum Capital Adequacy With Capital Conservation Buffer	1,790,188	1,578,811
Tier I capital (to risk-weighted assets), Amount
Tier 1 capital, Actual	1,901,685	1,759,207
Tier 1 capital, Minimum Capital Adequacy With Capital Conservation Buffer	1,449,200	1,278,085
Tier I capital (to average assets), Amount
Tier 1 capital, Actual	$ 1,901,685	$ 1,759,207
Total capital and Tier I capital (to risk-weighted assets), Ratio
Total capital (to Risk Weighted Assets), Actual	0.1197	0.1242
Total capital (to Risk Weighted Assets), Required For Capital Adequacy Purposes	0.0800	0.0800
Total capital (to Risk Weighted assets), Minimum Capital Adequacy With Capital Conservation Buffer	10.50%	10.50%
Tier 1 capital (to Risk Weighted Assets), Actual	0.1115	0.1170
Tier 1 capital (to Risk Weighted Assets), Required For Capital Adequacy Purposes	0.0600	0.0600
Tier 1 capital (to Risk Weighted Assets), Minimum Capital Adequacy With Capital Conservation Buffer	8.50%	8.50%
Tier I capital (to average assets), Ratio
Tier I Capital (to Average Assets), Actual (Leverage)	0.1015	0.1011
Tier I Capital (to Average Assets), Minimum For Capital Adequacy Purposes (Leverage)	0.0400	0.0400
Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum		$ 676,633
Total capital, Required For Capital Adequacy Purposes	$ 1,363,953	1,202,903
Tier 1 capital, Required For Capital Adequacy Purposes	1,022,965	902,178
Tier 1 capital, Required For Capital Adequacy Purposes	749,743	695,795
Bank
Total capital (to risk-weighted assets), Amount
Total capital, Minimum Capital Adequacy With Capital Conservation Buffer	1,789,598	1,578,099
Tier I capital (to risk-weighted assets), Amount
Tier 1 capital, Minimum Capital Adequacy With Capital Conservation Buffer	$ 1,448,723	$ 1,277,509
Total capital and Tier I capital (to risk-weighted assets), Ratio
Total capital (to Risk Weighted assets), Minimum Capital Adequacy With Capital Conservation Buffer	10.50%	10.50%
Tier 1 capital (to Risk Weighted Assets), Minimum Capital Adequacy With Capital Conservation Buffer	8.50%	8.50%
Common Equity Tier 1 | Company
Tier I capital (to risk-weighted assets), Amount
Tier 1 capital, Minimum Capital Adequacy With Capital Conservation Buffer	$ 1,193,459	$ 1,052,540
Total capital and Tier I capital (to risk-weighted assets), Ratio
Tier 1 capital (to Risk Weighted Assets), Required For Capital Adequacy Purposes	0.0450	0.0450
Tier 1 capital (to Risk Weighted Assets), Minimum Capital Adequacy With Capital Conservation Buffer	7%	7%
Tier I capital (to average assets), Ratio
Tier 1 capital, Required For Capital Adequacy Purposes	$ 767,223
Common Equity Tier 1 | Bank
Tier I capital (to risk-weighted assets), Amount
Tier 1 capital, Minimum Capital Adequacy With Capital Conservation Buffer	$ 1,193,066	$ 1,052,066
Total capital and Tier I capital (to risk-weighted assets), Ratio
Tier 1 capital (to Risk Weighted Assets), Minimum Capital Adequacy With Capital Conservation Buffer	7%	7%
Common equity tier 1 capital | Bank Subsidiary
Total capital and Tier I capital (to risk-weighted assets), Ratio
Tier 1 capital (to Risk Weighted Assets), Required For Capital Adequacy Purposes	0.0450	0.0450
Tier 1 capital (to Risk Weighted Assets), Required To Be Well Capitalized Under Prompt Corrective Action Provisions	0.0650	0.0650

Revenue Recognition - Service C

Revenue Recognition - Service Charged on Deposit Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Service fees on deposit accounts	$ 8,938	$ 7,275	$ 12,443
Wire transfer fees	3,477	3,519	3,577
Wire transfer fees
Disaggregation of Revenue [Line Items]
Wire transfer fees	3,005	3,082	3,188
Foreign exchange fees
Disaggregation of Revenue [Line Items]
Wire transfer fees	472	437	389
Noninterest Bearing Deposits
Disaggregation of Revenue [Line Items]
Service fees on deposit accounts	8,843	7,183	12,351
Noninterest Bearing Deposits | Monthly service charges
Disaggregation of Revenue [Line Items]
Service fees on deposit accounts	997	1,065	1,301
Noninterest Bearing Deposits | Customer analysis charges
Disaggregation of Revenue [Line Items]
Service fees on deposit accounts	4,602	3,219	6,765
Noninterest Bearing Deposits | NSF charges
Disaggregation of Revenue [Line Items]
Service fees on deposit accounts	2,889	2,554	3,687
Noninterest Bearing Deposits | Other service charges
Disaggregation of Revenue [Line Items]
Service fees on deposit accounts	355	345	598
Interest-bearing Deposits | Monthly service charges
Disaggregation of Revenue [Line Items]
Service fees on deposit accounts	$ 95	$ 92	$ 92

Revenue Recognition - OREO Inco

Revenue Recognition - OREO Income (Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Net losses on sales of OREO	$ (178)	$ (684)	$ (108)

Earnings Per Share (Details)

Earnings Per Share (Details)		3 Months Ended								12 Months Ended
	Jun. 07, 2018	Dec. 31, 2022 USD ($) $ / shares	Sep. 30, 2022 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Mar. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Sep. 30, 2021 USD ($) $ / shares	Jun. 30, 2021 USD ($) $ / shares	Mar. 31, 2021 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($)	Jun. 06, 2018 USD ($)
Antidilutive Securities Excluded from Computation of Earnings Per Share
Share repurchase program, authorized amount | $						$ 50,000,000		$ 50,000,000			$ 50,000,000		$ 50,000,000
Common stock repurchased and recorded as treasury stock (in shares) | shares										1,038,986	3,682,268	2,716,034
Repurchase of treasury stock | $										$ 14,667,000	$ 50,000,000	$ 36,180,000
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Net Income (Loss) Attributable to Parent | $		$ 51,703,000	$ 53,748,000	$ 52,088,000	$ 60,738,000	$ 51,623,000	$ 55,499,000	$ 53,763,000	$ 43,687,000	218,277,000	204,572,000	111,515,000
Net Income (Loss) Available to Common Stockholders, Diluted | $										$ 218,277,000	$ 204,572,000	$ 111,515,000
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic EPS - common stock (in shares) | shares										119,824,970	122,321,768	123,501,401
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Stock options, restricted stock, and ESPP shares (in shares) | shares										647,375	811,257	387,942
Diluted EPS - common stock (shares) | shares										120,472,345	123,133,025	123,889,343
Earnings Per Share, Diluted [Abstract]
Basic EPS - common stock (in dollars per share) | $ / shares		$ 0.43	$ 0.45	$ 0.43	$ 0.51	$ 0.43	$ 0.45	$ 0.44	$ 0.35	$ 1.82	$ 1.67	$ 0.90
Diluted EPS - common stock (in dollars per share) | $ / shares		$ 0.43	$ 0.45	$ 0.43	$ 0.50	$ 0.43	$ 0.45	$ 0.43	$ 0.35	$ 1.81	$ 1.66	$ 0.90
Convertible Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share
Aggregate principal amount issued | $		$ 217,500,000								$ 217,500,000				$ 217,500,000
Initial conversion rate	0.0450760									0.0450760
Stock options and restricted share awards
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive shares of common stock | shares										693,668	772,707	827,405

Servicing Assets - Changes in S

Servicing Assets - Changes in Servicing Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	$ 10,418	$ 12,692	$ 16,417
Additions through originations of servicing assets	5,200	2,880	2,864
Amortization	(3,990)	(5,154)	(6,589)
Balance at end of period	$ 11,628	$ 10,418	$ 12,692

Transfers and Servicing (Detail

Transfers and Servicing (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Transfers and Servicing [Abstract]
Loans and Leases Receivable, Serviced for other Institutions	$ 1,100,000	$ 1,040,000
Servicing Asset at Amortized Cost	11,628	10,418	$ 12,692	$ 16,417
SBA Servicing Asset at Amortized Cost	8,900	7,200
Mortgage Servicing Asset at Amortized Cost	$ 2,700	$ 3,200

Servicing Assets - Fair Value A

Servicing Assets - Fair Value Assumptions (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2022
Transfers and Servicing [Abstract]
SBA Servicing Assets: Weighted-average discount rate	11.20%	8.76%
SBA Servicing Assets: Constant prepayment rate	14.64%	12.09%
Mortgage Servicing Assets: Weighted-average discount rate	8.63%	11.38%
Mortgage Servicing Assets: Constant prepayment rate	9.58%	9.61%

Condensed Financial Statement_3

Condensed Financial Statements of Parent Company (Statements of Financial Condition) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other assets	$ 144,742	$ 95,263
Total assets	19,164,491	17,889,061
Convertible notes, net	217,148	216,209
Subordinated debentures, net	106,565	105,354
Liabilities	17,145,163	15,796,078
Stockholders' Equity Attributable to Parent	2,019,328	2,092,983	$ 2,053,745	$ 2,036,011
Liabilities and Equity	19,164,491	17,889,061
Company
LIABILITIES AND STOCKHOLDERS’ EQUITY
Cash and Cash Equivalents, at Carrying Value	62,380	21,006
Other assets	11,689	11,382
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	2,270,280	2,383,098
Total assets	2,344,349	2,415,486
Convertible notes, net	217,148	216,209
Subordinated debentures, net	106,565	105,354
Other Accounts Payable and Accrued Liabilities	1,308	940
Liabilities	325,021	322,503
Stockholders' Equity Attributable to Parent	2,019,328	2,092,983
Liabilities and Equity	$ 2,344,349	$ 2,415,486

Condensed Financial Statement_4

Condensed Financial Statements of Parent Company (Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Interest and Dividend Income, Operating	$ 224,237	$ 189,182	$ 157,824	$ 144,872	$ 145,169	$ 142,866	$ 140,204	$ 138,293	$ 716,115	$ 566,532	$ 598,878
Interest Expense	(73,716)	(35,996)	(16,286)	(11,696)	(11,851)	(12,570)	(13,627)	(15,714)	(137,694)	(53,762)	(131,380)
Noninterest Income	12,110	13,355	12,746	13,186	13,097	10,617	11,076	8,804	51,397	43,594	53,432
Noninterest Expense	(84,518)	(83,914)	(80,365)	(75,373)	(74,236)	(75,502)	(73,123)	(70,431)	(324,170)	(293,292)	(283,639)
Pretax income	69,913	73,427	70,719	81,989	70,679	75,411	71,530	57,652	296,048	275,272	142,291
Income tax provision	(18,210)	(19,679)	(18,631)	(21,251)	(19,056)	(19,912)	(17,767)	(13,965)	(77,771)	(70,700)	(30,776)
Net Income (Loss) Attributable to Parent	$ 51,703	$ 53,748	$ 52,088	$ 60,738	$ 51,623	$ 55,499	$ 53,763	$ 43,687	218,277	204,572	111,515
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									(1,168)	160,407	135,119
Parent
Condensed Financial Statements, Captions [Line Items]
Interest and Dividend Income, Operating									0	0	0
Interest Expense									(11,330)	(9,186)	(14,147)
Noninterest Income									0	0	0
Noninterest Expense									(7,212)	(5,633)	(5,316)
Dividends									133,000	128,000	96,000
Equity in undistributed earnings (losses) of Bank Subsidiary									98,354	87,025	29,781
Pretax income									212,812	200,206	106,318
Income tax provision									5,465	4,366	5,197
Net Income (Loss) Attributable to Parent									218,277	204,572	111,515
Other Comprehensive Income (Loss), Net of Tax									(219,445)	(44,165)	23,604
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ (1,168)	$ 160,407	$ 135,119

Condensed Financial Statement_5

Condensed Financial Statements of Parent Company (Statements of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Net Income (Loss) Attributable to Parent	$ 51,703	$ 53,748	$ 52,088	$ 60,738	$ 51,623	$ 55,499	$ 53,763	$ 43,687	$ 218,277	$ 204,572	$ 111,515
Share-based Payment Arrangement, Noncash Expense									12,263	8,398	8,127
Increase (Decrease) in Other Operating Assets									(3,519)	49,010	(59,228)
Net Cash Provided by (Used in) Operating Activities									485,535	324,211	165,916
Proceeds from sales of equity investments									20,603	1,277	201
Net Cash Provided by (Used in) Investing Activities									(1,473,626)	(993,040)	(1,834,632)
Purchase of treasury stock									(14,667)	(50,000)	(36,777)
Net Cash Provided by (Used in) Financing Activities									1,178,601	634,516	1,320,728
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect									190,510	(34,313)	(347,988)
Parent
Condensed Financial Statements, Captions [Line Items]
Net Income (Loss) Attributable to Parent									218,277	204,572	111,515
Amortization									2,150	2,115	6,250
Share-based Payment Arrangement, Noncash Expense									502	141	201
Increase (Decrease) in Other Operating Assets									(307)	(326)	(1,194)
Increase (Decrease) in Accounts Payable and Accrued Liabilities									368	25	(440)
Equity in undistributed earnings (losses) of Bank Subsidiary									(98,354)	(87,025)	(29,781)
Net Cash Provided by (Used in) Operating Activities									122,636	119,502	86,551
Proceeds from sales of equity investments									0	0	0
Net Cash Provided by (Used in) Investing Activities									0	0	0
Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised									531	0	0
Purchase of treasury stock									(14,667)	(50,000)	(36,180)
Payments of Dividends									(67,126)	(68,666)	(69,182)
Net Cash Provided by (Used in) Financing Activities									(81,262)	(118,666)	(105,362)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect									41,374	836	(18,811)
Cash and Cash Equivalents, at Carrying Value	$ 62,380				$ 21,006				$ 62,380	$ 21,006	$ 20,170	$ 38,981

Quarterly Financial Data (Una_3

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Interest and Dividend Income, Operating	$ 224,237	$ 189,182	$ 157,824	$ 144,872	$ 145,169	$ 142,866	$ 140,204	$ 138,293	$ 716,115	$ 566,532	$ 598,878
Interest Expense	73,716	35,996	16,286	11,696	11,851	12,570	13,627	15,714	137,694	53,762	131,380
Interest Income (Expense), Net	150,521	153,186	141,538	133,176	133,318	130,296	126,577	122,579	578,421	512,770	467,498
PROVISION (CREDIT) FOR CREDIT LOSSES	8,200	9,200	3,200	(11,000)	1,500	(10,000)	(7,000)	3,300	9,600	(12,200)	95,000
Interest Income (Expense), after Provision for Loan Loss	142,321	143,986	138,338	144,176	131,818	140,296	133,577	119,279	568,821	524,970	372,498
Noninterest Income	12,110	13,355	12,746	13,186	13,097	10,617	11,076	8,804	51,397	43,594	53,432
Noninterest Expense	84,518	83,914	80,365	75,373	74,236	75,502	73,123	70,431	324,170	293,292	283,639
Pretax income	69,913	73,427	70,719	81,989	70,679	75,411	71,530	57,652	296,048	275,272	142,291
Income tax provision	18,210	19,679	18,631	21,251	19,056	19,912	17,767	13,965	77,771	70,700	30,776
Net Income (Loss) Attributable to Parent	$ 51,703	$ 53,748	$ 52,088	$ 60,738	$ 51,623	$ 55,499	$ 53,763	$ 43,687	$ 218,277	$ 204,572	$ 111,515
Basic EPS - common stock (in dollars per share)	$ 0.43	$ 0.45	$ 0.43	$ 0.51	$ 0.43	$ 0.45	$ 0.44	$ 0.35	$ 1.82	$ 1.67	$ 0.90
Diluted EPS - common stock (in dollars per share)	$ 0.43	$ 0.45	$ 0.43	$ 0.50	$ 0.43	$ 0.45	$ 0.43	$ 0.35	$ 1.81	$ 1.66	$ 0.90