East West Bancorp (EWBC) 10-K 27 Feb 23 2022 FY Annual report Financial data

Cover Page

Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2022	Jan. 31, 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	000-24939
Entity Registrant Name	EAST WEST BANCORP, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-4703316
Entity Address, Address Line One	135 North Los Robles Ave.
Entity Address, Address Line Two	7th Floor
Entity Address, City or Town	Pasadena
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91101
City Area Code	626
Local Phone Number	768-6000
Title of 12(b) Security	Common stock, par value $0.001 per share
Trading Symbol	EWBC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 9,058,196,758
Entity Common Stock, Shares Outstanding		141,003,685
Documents Incorporated by Reference	Portions of the registrant’s definitive proxy statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A relating to its 2022 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K.
Entity Central Index Key	0001069157
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2022
Auditor Information [Abstract]
Auditor Name	KPMG LLP
Auditor Location	Los Angeles, CA
Auditor Firm ID	185

CONSOLIDATED BALANCE SHEET

CONSOLIDATED BALANCE SHEET - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
ASSETS
Cash and due from banks	$ 534,980	$ 527,317
Interest-bearing cash with banks	2,946,804	3,385,618
Cash and cash equivalents	3,481,784	3,912,935
Interest-bearing deposits with banks	139,021	736,492
Assets purchased under resale agreements (“resale agreements”)	792,192	2,353,503
Securities:
Available-for-sale ("AFS") debt securities, at fair value (amortized cost of $6,879,225 and $10,087,179)	6,034,993	9,965,353
Held-to-maturity (“HTM”) debt securities, at amortized cost (fair value of $2,455,171)	3,001,868	0
Loans held-for-sale	25,644	635
Loans held-for-investment (net of allowance for loan losses of $595,645 and $541,579)	47,606,785	41,152,202
Investments in qualified affordable housing partnerships, tax credit and other investments, net	763,256	628,263
Premises and equipment (net of accumulated depreciation of $148,126 and $139,358)	89,191	97,302
Goodwill	465,697	465,697
Operating lease right-of-use assets	103,681	98,632
Other assets	1,608,038	1,459,687
TOTAL	64,112,150	60,870,701
Deposits:
Noninterest-bearing	21,051,090	22,845,464
Interest-bearing	34,916,759	30,505,068
Total deposits	55,967,849	53,350,532
Federal Home Loan Bank (“FHLB”) advances	0	249,331
Assets sold under repurchase agreements (“repurchase agreements”)	300,000	300,000
Long-term debt and finance lease liabilities	152,400	151,997
Operating lease liabilities	111,931	105,534
Accrued expenses and other liabilities	1,595,358	876,089
Total liabilities	58,127,538	55,033,483
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 168,459,045 and 167,790,645 shares issued	168	168
Additional paid-in capital	1,936,389	1,893,557
Retained earnings	5,582,546	4,683,659
Treasury stock, at cost 27,511,199 and 25,882,691 shares	(768,862)	(649,785)
Accumulated other comprehensive loss (“AOCI”), net of tax	(765,629)	(90,381)
Total stockholders’ equity	5,984,612	5,837,218
TOTAL	$ 64,112,150	$ 60,870,701

CONSOLIDATED BALANCE SHEET (Par

CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
ASSETS
ASF debt securities, amortized cost	$ 6,879,225	$ 10,087,179
HTM debt securities, fair value	2,455,171
Allowance for loan losses	595,645	541,579
Premises and equipment, accumulated depreciation	$ 148,126	$ 139,358
STOCKHOLDERS’ EQUITY
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	168,459,045	167,790,645
Treasury stock, shares (in shares)	27,511,199	25,882,691

CONSOLIDATED STATEMENT OF INCOM

CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
INTEREST AND DIVIDEND INCOME
Loans receivable, including fees	$ 2,048,301,000	$ 1,424,900,000	$ 1,464,382,000
Debt Securities	198,906,000	143,983,000	82,553,000
Resale agreements	29,767,000	32,239,000	21,389,000
Restricted equity securities	3,144,000	2,081,000	1,543,000
Interest-bearing cash and deposits with banks	41,113,000	15,531,000	25,175,000
Total interest and dividend income	2,321,231,000	1,618,734,000	1,595,042,000
INTEREST EXPENSE
Deposits	251,838,000	69,159,000	184,742,000
Federal funds purchased and other short-term borrowings	1,801,000	42,000	1,504,000
FHLB advances	1,754,000	6,881,000	13,792,000
Repurchase agreements	14,362,000	7,999,000	11,766,000
Long-term debt and finance lease liabilities	5,595,000	3,082,000	6,045,000
Total interest expense	275,350,000	87,163,000	217,849,000
Net interest income before provision for (reversal of) credit losses	2,045,881,000	1,531,571,000	1,377,193,000
Provision for (reversal of) credit losses	73,500,000	(35,000,000)	210,653,000
Net interest income after provision for (reversal of) credit losses	1,972,381,000	1,566,571,000	1,166,540,000
NONINTEREST INCOME
Lending fees	79,208,000	77,704,000	74,842,000
Deposit account fees	88,435,000	71,261,000	48,148,000
Interest rate contracts and other derivative income	29,057,000	22,913,000	31,685,000
Foreign exchange income	48,158,000	48,977,000	22,370,000
Wealth management fees	27,565,000	25,751,000	17,494,000
Net gains on sales of loans	6,411,000	8,909,000	4,501,000
Gains on sales of AFS debt securities	1,306,000	1,568,000	12,299,000
Other investment income	7,037,000	16,852,000	10,641,000
Other income	11,489,000	11,960,000	13,567,000
Total noninterest income	298,666,000	285,895,000	235,547,000
NONINTEREST EXPENSE
Compensation and employee benefits	477,635,000	433,728,000	404,071,000
Occupancy and equipment expense	62,501,000	62,996,000	66,489,000
Deposit insurance premiums and regulatory assessments	19,449,000	17,563,000	15,128,000
Deposit account expense	25,508,000	16,152,000	13,530,000
Data processing	14,517,000	16,263,000	16,603,000
Computer software expense	28,259,000	30,600,000	29,033,000
Other operating expense	118,166,000	96,330,000	92,646,000
Amortization of Tax Credit and Other Investments	113,358,000	122,457,000	70,082,000
Repurchase agreements’ extinguishment cost	0	0	8,740,000
Total noninterest expense	859,393,000	796,089,000	716,322,000
INCOME BEFORE INCOME TAXES	1,411,654,000	1,056,377,000	685,765,000
INCOME TAX EXPENSE	283,571,000	183,396,000	117,968,000
NET INCOME	$ 1,128,083,000	$ 872,981,000	$ 567,797,000
EARNINGS PER SHARE (“EPS”)
BASIC (in dollars per share)	$ 7.98	$ 6.16	$ 3.99
DILUTED (in dollars per share)	$ 7.92	$ 6.10	$ 3.97
WEIGHTED-AVERAGE NUMBER OF SHARES OUTSTANDING
BASIC (in shares)	141,326	141,826	142,336
DILUTED (in shares)	142,492	143,140	142,991

CONSOLIDATED STATEMENT OF COMPR

CONSOLIDATED STATEMENT 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	$ 1,128,083	$ 872,981	$ 567,797
Other comprehensive (loss) income, net of tax:
Net changes in unrealized (losses) gains on AFS debt securities	(508,799)	(137,950)	54,666
Net changes in unrealized losses on securities transferred from AFS to HTM	(100,313)	0	0
Net changes in unrealized (losses) gains on cash flow hedges	(49,788)	1,487	(1,230)
Foreign currency translation adjustments	(16,348)	1,757	9,297
Other comprehensive (loss) income	(675,248)	(134,706)	62,733
COMPREHENSIVE INCOME	$ 452,835	$ 738,275	$ 630,530

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands		Total	Stock Compensation Plans And Agreements, Various Plans and Agreements	Stock Repurchase Plan	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Common Stock Stock Compensation Plans And Agreements, Various Plans and Agreements	Common Stock Stock Repurchase Plan	Common Stock and Additional Paid-In Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	AOCI, net of Tax	Treasury Stock, Common Stock Compensation Plans And Agreements, Various Plans and Agreements	Treasury Stock, Common Stock Repurchase Plan
Beginning balance (in shares) at Dec. 31, 2019						145,625,385
Beginning balance at Dec. 31, 2019		$ 5,017,617							$ 1,826,512	$ 3,689,377		$ (479,864)	$ (18,408)
Beginning balance (Accounting Standards Update 2016-13) at Dec. 31, 2019	[1]				$ (97,967)						$ (97,967)
Increase (Decrease) in Stockholders' Equity
Net income		567,797								567,797
Other comprehensive income (loss)		62,733											62,733
Issuance of common stock pursuant to various stock compensation plans and agreements (in shares)						618,641
Issuance of common stock pursuant to various stock compensation plans and agreements		32,007							32,007
Repurchase of common stock pursuant to the Stock Repurchase Program/various stock compensation plans and agreements (in shares)							(207,115)	(4,471,682)
Repurchase of common stock pursuant to the Stock Repurchase Program/various stock compensation plans and agreements			$ (8,253)	$ (145,966)										$ (8,253)	$ (145,966)
Cash dividends on common stock		(158,793)								(158,793)
Ending balance (in shares) at Dec. 31, 2020						141,565,229
Ending balance at Dec. 31, 2020		5,269,175							1,858,519	4,000,414		(634,083)	44,325
Increase (Decrease) in Stockholders' Equity
Net income		872,981								872,981
Other comprehensive income (loss)		(134,706)											(134,706)
Issuance of common stock pursuant to various stock compensation plans and agreements (in shares)						550,045
Issuance of common stock pursuant to various stock compensation plans and agreements		35,206							35,206
Repurchase of common stock pursuant to the Stock Repurchase Program/various stock compensation plans and agreements (in shares)							(207,320)
Repurchase of common stock pursuant to the Stock Repurchase Program/various stock compensation plans and agreements			(15,702)											(15,702)
Cash dividends on common stock		(189,736)								(189,736)
Ending balance (in shares) at Dec. 31, 2021						141,907,954
Ending balance at Dec. 31, 2021		5,837,218							1,893,725	4,683,659		(649,785)	(90,381)
Increase (Decrease) in Stockholders' Equity
Net income		1,128,083								1,128,083
Other comprehensive income (loss)		(675,248)											(675,248)
Issuance of common stock pursuant to various stock compensation plans and agreements (in shares)						671,871
Issuance of common stock pursuant to various stock compensation plans and agreements		42,832							42,832
Repurchase of common stock pursuant to the Stock Repurchase Program/various stock compensation plans and agreements (in shares)							(246,462)	(1,385,517)
Repurchase of common stock pursuant to the Stock Repurchase Program/various stock compensation plans and agreements			$ (19,087)	$ (99,990)										$ (19,087)	$ (99,990)
Cash dividends on common stock		(229,196)								(229,196)
Ending balance (in shares) at Dec. 31, 2022						140,947,846
Ending balance at Dec. 31, 2022		$ 5,984,612							$ 1,936,557	$ 5,582,546		$ (768,862)	$ (765,629)
[1] Represents the impact of the adoption of Accounting Standards Update (“ASU”) 2016-13, Financial Instruments — Credit Losses (Topic 326) on January 1, 2020.

CONSOLIDATED STATEMENT OF CHA_2

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (in dollars per share)	$ 1.60	$ 1.32	$ 1.10

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT 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	$ 1,128,083	$ 872,981	$ 567,797
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for (reversal of) credit losses	73,500	(35,000)	210,653
Depreciation and amortization	159,851	156,792	119,908
Accretion of discount and (amortization of premiums), net	56,703	67,415	17,704
Stock compensation costs	37,601	32,567	29,237
Deferred income (benefit) tax expense	(43,988)	4,762	(41,515)
Net gains on sales of loans	(6,411)	(8,909)	(4,501)
Gains on sales of AFS debt securities	(1,306)	(1,568)	(12,299)
Net gains on sales of other real estate owned ("OREO") and other foreclosed assets	(3,042)	(1,977)	(207)
Impairment on OREO and other foreclosed assets	6,861	5,151	3,717
Loans held-for-sale:
Originations and purchases	(447)	(11,155)	(81,662)
Proceeds from sales and paydowns/payoffs of loans originally classified as held-for-sale	461	12,552	80,659
Proceeds from distributions received from equity method investees	7,586	13,117	8,786
Net change in accrued interest receivable and other assets	187,512	124,496	(340,566)
Net change in accrued expenses and other liabilities	461,385	(63,360)	136,260
Other net operating activities	1,673	558	(1,327)
Total adjustments	937,939	295,441	124,847
Net cash provided by operating activities	2,066,022	1,168,422	692,644
Net (increase) decrease in:
Investments in qualified affordable housing partnerships, tax credit and other investments	(167,303)	(189,836)	(154,887)
Interest-bearing deposits with banks	596,994	73,263	(613,400)
Resale agreements:
Proceeds from paydowns and maturities	1,951,388	982,694	450,000
Purchases	(390,077)	(1,876,197)	(800,000)
AFS debt securities:
Proceeds from sales	129,181	308,812	525,433
Proceeds from repayments, maturities and redemptions	896,726	1,766,184	2,070,131
Purchases	(1,070,608)	(6,779,655)	(4,758,254)
HTM debt securities:
Proceeds from repayments, maturities and redemptions	75,635	0	0
Purchases	(50,000)	0	0
Loans held-for-investment:
Proceeds from sales of loans originally classified as held-for-investment	602,725	606,410	331,864
Purchases	(657,620)	(1,045,456)	(389,863)
Other changes in loans held-for-investment, net	(6,516,182)	(2,877,438)	(3,546,596)
Proceeds from sales of OREO and other foreclosed assets	6,482	54,338	295
Purchase of bank-owned life insurance	(734)	(150,000)	0
Distributions received from equity method investees	18,221	14,440	15,901
Other net investing activities	(7,720)	(4,763)	(4,360)
Net cash (used in) provided by investing activities	(4,582,892)	(9,117,204)	(6,873,736)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	2,709,427	8,464,285	7,482,845
Net (decrease) increase in short-term borrowings	6	(21,143)	(9,016)
FHLB advances:
Proceeds	4,950,200	400	10,300
Repayments	(5,200,200)	(405,400)	(105,300)
Repurchase agreements:
Proceeds	0	0	48,063
Repayment	0	0	(198,063)
Extinguishment cost	0	0	(8,740)
Long-term debt and lease liabilities:
Proceeds from long-term debt	0	0	1,437,269
Repayments of long-term debt and lease liabilities	(943)	(1,206)	(1,438,335)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements	3,178	2,573	2,326
Stocks tendered for payment of withholding taxes	(19,087)	(15,702)	(8,253)
Repurchase of common stocks pursuant to the Stock Repurchase Program	(99,990)	0	(145,966)
Cash dividends paid	(228,381)	(188,762)	(158,222)
Net cash provided by financing activities	2,114,210	7,835,045	6,908,908
Effect of exchange rate changes on cash and cash equivalents	(28,491)	8,701	29,006
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(431,151)	(105,036)	756,822
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	3,912,935	4,017,971	3,261,149
CASH AND CASH EQUIVALENTS, END OF YEAR	3,481,784	3,912,935	4,017,971
Cash paid during the year for:
Interest	249,587	87,684	233,139
Income taxes, net	281,269	139,460	116,416
Noncash investing and financing activities:
Loans transferred from held-for-investment to held-for-sale	623,777	599,610	329,069
Securities transferred from AFS to HTM debt securities	3,010,003	0	0
Loans transferred to OREO	$ 270	$ 49,485	$ 19,504

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 Organization East West Bancorp, Inc. (referred to herein on an unconsolidated basis as “East West” and on a consolidated basis as the “Company”) is a registered bank holding company that offers a full range of banking services to individuals and businesses through its subsidiary bank, East West Bank and its subsidiaries (“East West Bank” or the “Bank”). The Bank is the Company’s principal asset. As of December 31, 2022, the Company operated i n over 120 locations in the United States (“U.S.”) and China. In the U.S., the Bank’s corporate headquarters and main administrative offices were located in California, and its branches and offices are located in California, Texas, New York, Washington, Georgia, Massachusetts, Illinois, and Nevada. In China, East West’s presence included full-service branches in Hong Kong, Shanghai, Shantou and Shenzhen, and representative offices in Beijing, Chongqing, Guangzhou and Xiamen. The Bank has a banking subsidiary based in China — East West Bank (China) Limited. Significant Accounting Policies Basis of Presentation — The accounting and reporting policies of the Company conform with the U.S. Generally Accepted Accounting Principles (“GAAP”), applicable guidelines prescribed by regulatory authorities and general practices in the banking industry. The preparation of the Consolidated Financial Statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the Consolidated Financial Statements, income and expenses during the reporting period, and the related disclosures. Actual results could differ materially from those estimates. Certain items on the Consolidated Financial Statements and notes for the prior years have been reclassified to conform to the 2022 presentation. Principles of Consolidation — The Consolidated Financial Statements in this Annual Report on Form 10-K (“this Form 10-K”) include the accounts of East West and its subsidiaries. Intercompany transactions and accounts have been eliminated in consolidation. East West also has six wholly-owned subsidiaries that are statutory business trusts (the “Trusts”). In accordance with Financial Accounting Standards Board Accounting Standards Codification (“ASC”) Topic 810, Consolidation, the Trusts are not included in the Consolidated Financial Statements. Cash and Cash Equivalents — Cash and cash equivalents include cash on hand, cash items in transit, cash due from the Federal Reserve Bank of San Francisco (“FRBSF”) and other financial institutions, and federal funds sold with original maturities up to three months. Interest-Bearing Deposits with Banks — Interest-bearing deposits with banks include cash placed with other banks with original maturities greater than three months and less than one year. Assets Purchased under Resale Agreements and Assets Sold under Repurchase Agreements — Resale agreements are recorded as receivables based on the values at which the securities or loans are acquired. Repurchase agreements are accounted for as collateralized financing transactions and recorded as liabilities based on the values at which the securities are sold. The Company monitors the values of the underlying assets collateralizing the resale and repurchase agreements, including accrued interest, and obtains or posts additional collateral in order to maintain the appropriate collateral requirements for the transactions. For allowance for credit losses on resale agreements, refer to the Allowance for Collateral-Dependent Financial Assets section of this note for details. Securities — The Company’s securities include various debt securities, marketable and non-marketable equity securities. Debt securities are recorded on the Consolidated Balance Sheet as of their trade dates. The Company classifies its debt securities as trading securities, AFS or HTM debt securities based on management’s intention on the date of the purchase. Debt securities are purchased for liquidity and investment purposes, as part of asset/liability management and other strategic activities. Debt securities for which the Company has the positive intention and ability to hold until maturity are classified as HTM and are carried at amortized cost, net of allowance for credit losses. Debt securities not classified as trading securities or HTM securities are classified as AFS. AFS debt securities are reported at fair value, net of the allowance for credit losses, with unrealized gains and losses recorded in AOCI, net of applicable income taxes. For details of the allowance for credit losses on debt securities, refer to the Allowance for Credit Losses on Available-for-Sale and Held-to-Maturity Debt Securities sections of this note. Interest income, including any amortization of premium or accretion of discount, is included in net income. The Company recognizes realized gains and losses on the sale of AFS debt securities in earnings, using the specific identification method. Upon transfer of a debt security from the AFS to HTM category, the security’s new amortized cost is reset to fair value, reduced by any previous write-offs but excluding any allowance for credit losses. Unrealized gains or losses at the date of transfer of these securities continue to be reported in AOCI and are amortized into interest income over the remaining life of the securities as effective yield adjustments, in a manner consistent with the amortization or accretion of the original purchase premium or discount on the associated security. For transfers of securities from the AFS to HTM category, any allowance for credit losses that was previously recorded under the AFS model is reversed and an allowance for credit losses is subsequently recorded under the HTM debt security model. The reversal and re-establishment of the allowance for credit losses are recorded in the provision for credit losses. Marketable equity securities with readily determinable fair values are recorded at fair value with unrealized gains and losses due to changes in fair value; and are included in Other investment income on the Consolidated Statement of Income. Marketable equity securities include mutual fund investments, which are included in Investments in qualified affordable housing partnership, tax credit and other investments, net on the Consolidated Balance Sheet. Non-marketable equity securities including tax credit investments, and other equity investments that do not have readily determinable fair values are recorded in Investments in qualified affordable housing partnership, tax credit and other investments, net, and Other assets on the Consolidated Balance Sheet and are accounted for under one of the following accounting methods: • Equity Method — When the Company has the ability to exert significant influence over the investee. • Cost Method — The cost method is applied to restricted equity securities held for membership and regulatory purposes, such as FRBSF and FHLB stock. These investments are held at their cost minus impairment. If impaired, the carrying value is written down to the fair value of the security. • Measurement Alternative — This method is applied to all remaining non-marketable equity securities. These securities are carried at cost adjusted for impairment, if any, plus or minus observable price changes in orderly transactions of an identical or similar security of the same issuer. Our impairment review for equity method, cost method and measurement alternative securities typically includes an analysis of the facts and circumstances of each security, the intent or requirement to sell the security, the expectations of cash flows, capital needs and the viability of its business model. For equity method and cost method investments, the Company reduces the asset’s carrying value when the Company considers declines in value to be other-than-temporary impairment (“OTTI”). For securities accounted for under the measurement alternative, the Company reduces the asset value when the fair value is less than the carrying value, without the consideration of recovery. Loans Held-for-Sale — Loans are initially classified as loans held-for-sale when they are individually identified as being available for immediate sale and management has committed to a formal plan to sell them. Loans held-for-sale are carried at lower of cost or fair value. Subject to periodic review under the Company’s evaluation process, including asset/liability and credit risk management, the Company may transfer certain loans from held-for-investment to held-for-sale measured at lower of cost or fair value. Any write-downs in the carrying amount of the loan at the date of transfer are recorded as charge-offs to allowance for loan losses. Loan origination fees on loans held-for-sale, net of certain costs in processing and closing the loans, are deferred until the time of sale and are included in the periodic determination of the lower of cost or fair value adjustments and/or the gain or loss recognized at the time of sale. A valuation allowance is established if the fair value of such loans is lower than their cost, with a corresponding charge to noninterest income. If the loan or a portion of the loan cannot be sold, it is subsequently transferred back to the loans held-for-investment portfolio from the loans held-for-sale portfolio at the lower of cost or fair value on the transfer date. Loans Held-for-Investment — At the time of commitment to originate or purchase a loan, the loan is determined to be held-for-investment if it is the Company’s intent to hold the loan to maturity or for the foreseeable future. Loans held-for-investment are stated at their outstanding principal, reduced by an allowance for loan losses and net of deferred loan fees or costs, or unearned fees on originated loans, net of unamortized premiums or unaccreted discounts on purchased loans. Nonrefundable fees and direct costs associated with the origination or purchase of loans are deferred and netted against outstanding loan balances. The deferred net loan fees and costs are recognized in interest income as an adjustment to yield over the loan term using the effective interest method or straight-line method. Discounts/premiums on purchased loans are accreted/amortized to interest income using the effective interest method or straight-line method over the remaining period to the contractual maturity. Interest on loans is calculated using the simple-interest method on daily balances of the principal amounts outstanding. Generally, loans are placed on nonaccrual status when they become 90 days past due or more. Loans are considered past due when contractually required principal or interest payments have not been made on the due dates. Loans are also placed on nonaccrual status when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that full collection of principal or interest becomes uncertain, regardless of the length of past due status. Once a loan is placed on nonaccrual status, interest accrual is discontinued and all unpaid accrued interest is reversed against interest income. Interest payments received on nonaccrual loans are reflected as a reduction of principal and not as interest income. A loan is returned to accrual status when the borrower has demonstrated a satisfactory payment trend subject to management’s assessment of the borrower’s ability to repay the loan. Troubled Debt Restructurings — A loan is generally classified as a troubled debt restructuring (“TDR”) when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that the Company would not otherwise consider. The concessions may be granted in various forms, including a below-market change in the stated interest rate, a reduction in the loan balance or accrued interest, a term extension, a payment forbearance and other actions. Loans with contractual terms that have been modified as a TDR and are current at the time of restructuring may remain on accrual status if there is demonstrated performance prior to the restructuring and payment in full under the restructured terms is expected. Otherwise, these loans are placed on nonaccrual status and are reported as nonperforming, until the borrower demonstrates a sustained period of performance, generally six months, and the ability to repay the loan according to the contractual terms. If accruing TDRs cease to perform in accordance with their modified contractual terms, they are placed on nonaccrual status and reported as nonperforming TDRs. TDRs are included in the quarterly allowance for credit losses valuation process. Refer to Allowance for Loan Losses below for a complete discussion. Allowance for Loan Losses — The allowance for loan losses is established as management’s estimate of expected credit losses inherent in the Company’s lending activities; it is increased by the provision for credit losses and decreased by net charge-offs. The allowance for loan losses is evaluated quarterly by management based on regular reviews of the collectability of the Company’s loans, and more often if deemed necessary. The Company develops and documents the allowance for loan losses methodology at the portfolio segment level. The commercial loan portfolio is comprised of commercial and industrial (“C&I”), commercial real estate (“CRE”), multifamily residential, and construction and land loans; and the consumer loan portfolio is comprised of single-family residential, home equity lines of credit (“HELOCs”), and other consumer loans. The allowance for loan losses represents the portion of a loan’s amortized cost basis that the Company does not expect to collect due to anticipated credit losses over the loan’s contractual life, adjusted for prepayments. The Company measures the expected loan losses on a collective pool basis when similar risk characteristics exist. Models consisting of quantitative and qualitative components are designed for each pool to develop the expected credit loss estimates. Reasonable and supportable forecast periods vary by loan portfolio. The Company has adopted lifetime loss rate models for the portfolios, which use historical loss rates and forecast economic variables to calculate the expected credit losses for each loan pool. When loans do not share similar risk characteristics, the Company evaluates the loan for expected credit losses on an individual basis. Individually assessed loans include nonaccrual and TDR loans. The Company evaluates loans for expected credit losses on an individual basis if, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the original contractual terms of the loan agreement. When the loan is deemed uncollectible, it is the Company’s policy to charge off the uncollectible amount against the allowance for credit losses. The amortized cost of loans held-for-investment excludes accrued interest, which is included in Other assets on the Consolidated Balance Sheet. The Company has made an accounting policy election to not recognize an allowance for credit losses for accrued interest receivables as the Company reverses accrued interest if a loan is on nonaccrual status. The allowance for loan losses is reported separately on the Consolidated Balance Sheet and the Provision for credit losses is reported on the Consolidated Statement of Income. Allowance for Unfunded Credit Commitments — The allowance for unfunded credit commitments includes reserves provided for unfunded loan commitments, letters of credit, standby letters of credit (“SBLCs”) and recourse obligations for loans sold. The Company estimates the allowance for unfunded credit commitments over the contractual period in which the entity is exposed to credit risk via a present contractual obligation to extend credit. Within the period of credit exposure, the Company considers both the likelihood that funding will occur, and the expected credit losses on the commitments that are expected to fund over their estimated lives. The allowance for unfunded credit commitments is maintained at a level believed by management to be sufficient to absorb expected credit losses related to unfunded credit facilities. The determination of the adequacy of the allowance is based on periodic evaluations of the unfunded credit facilities. For all off-balance sheet instruments and commitments, the unfunded credit exposure is calculated using assumptions based on the Company's historical utilization experience in related portfolio segments. Loss rates are applied to the calculated exposure balances to estimate the allowance for unfunded credit commitments. Other elements such as credit risk factors for loans outstanding, terms and expiration dates of the unfunded credit facilities, and other pertinent information are considered to determine the adequacy of the allowance. The allowance for unfunded credit commitments is included in the Accrued expenses and other liabilities on the Consolidated Balance Sheet. Changes to the allowance for unfunded credit commitments are included in Provision for credit losses on the Consolidated Income Statements. Allowance for Credit Losses on Available-for-Sale Debt Securities — For each reporting period, each AFS debt security that is in an unrealized loss position is individually analyzed as part of the Company’s ongoing assessments to determine whether a fair value below the amortized cost basis has resulted from a credit loss or other factors. The initial indicator of impairment is a decline in fair value below the amortized cost of the AFS debt security, excluding accrued interest. The Company first considers whether there is a plan to sell the AFS debt security or it is more-likely-than-not that it will be required to sell the debt security before recovery of the amortized cost. In determining whether an impairment is due to credit related factors, the Company considers the severity of the decline in fair value, nature of the security, the underlying collateral, the financial condition of the issuer, changes in the AFS debt security’s ratings and other qualitative factors. For AFS debt securities that are guaranteed or issued by the U.S. government, or government-sponsored enterprises of high credit quality, the Company applies a zero credit loss assumption. When the Company does not intend to sell the impaired AFS debt security and it is more-likely-than-not that the Company will not be required to sell the impaired debt security prior to recovery of its amortized cost basis, the credit component of the unrealized loss of the impaired AFS debt security is recognized as an allowance for credit losses, with a corresponding Provision for credit losses on the Consolidated Statement of Income and the non-credit component is recognized in Other comprehensive income (loss) on the Consolidated Statement of Comprehensive Income, net of applicable taxes. At each reporting period, the Company increases or decreases the allowance for credit losses as appropriate, while limiting reversals of the allowance for credit losses to the extent of the amounts previously recorded. If the Company intends to sell the impaired debt security or it is more-likely-than-not that the Company will be required to sell the impaired debt security prior to recovering its amortized cost basis, the entire impairment amount is recognized as an adjustment to the debt security’s amortized cost basis, with a corresponding Provision for credit losses on the Consolidated Statement of Income. The amortized cost of the Company’s AFS debt securities excludes accrued interest, which is included in Other assets on the Consolidated Balance Sheet. The Company has made an accounting policy election to not recognize an allowance for credit losses for accrued interest receivables on AFS debt securities as the Company reverses any accrued interest if a debt security is impaired. As each AFS debt security has a unique security structure, where the accrual status is clearly determined when certain criteria listed in the terms are met, the Company assesses the default status of each security as defined by the debt security’s specific security structure. Allowance for Credit Losses on Held-to-Maturity Debt Securities — For each major HTM debt security type, the allowance for credit losses is estimated collectively for groups of securities with similar risk characteristics. For securities that do not share similar risk characteristics, the losses are estimated individually. The Company applies a zero credit loss assumption to certain HTM debt securities, including debt securities that are either guaranteed or issued by the U.S. government or government-sponsored enterprises, are highly rated by nationally recognized statistical rating organizations (“NRSROs”), and have a long history of no credit losses. Any expected credit loss is recorded through the allowance for credit losses on HTM debt securities and deducted from the amortized cost basis of the security, reflecting the net amount the Company expects to collect. The amortized cost of the Company’s HTM debt securities excludes accrued interest, which is included in Other assets on the Consolidated Balance Sheet. The Company has made an accounting policy election not to recognize an allowance for credit losses for accrued interest receivables on HTM debt securities, as the Company reverses any accrued interest against interest income if a debt security is placed on nonaccrual status. The criteria used to place HTM debt securities on nonaccrual are largely similar to those described for loans. Any cash collected on nonaccrual HTM securities is applied to reduce the security’s amortized cost basis and not as interest income. Generally, the Company returns an HTM security to accrual status when all delinquent interest and principal become current under the contractual terms of the security, and the collectability of remaining principal and interest is no longer doubtful. Allowance for Collateral-Dependent Financial Assets — A financial asset is considered collateral-dependent if repayment is expected to be provided substantially through the operation or sale of the collateral. The allowance for credit losses is measured on an individual basis for collateral-dependent financial assets and determined by comparing the fair value of the collateral, minus the cost to sell, to the amortized cost basis of the related financial asset at the reporting date. Other than loans, collateral-dependent financial assets could also include resale agreements. In arrangements which the borrower must continually adjust the collateral securing the asset to reflect changes in the collateral’s fair value (e.g., resale agreements), the Company estimates the expected credit losses on the basis of the unsecured portion of the amortized cost as of the balance sheet date. If the fair value of the collateral is equal to or greater than the amortized cost of the resale agreement, the expected losses would be zero. If the fair value of the collateral is less than the amortized cost of the asset, the expected losses are limited to the difference between the fair value of the collateral and the amortized cost basis of the resale agreement. Allowance for Purchased Credit Deteriorated Assets — Purchased assets that have experienced a more-than-insignificant deterioration in credit quality since origination are deemed Purchased Credit Deteriorated (“PCD”) assets. For PCD HTM debt securities and PCD loans, the company records the allowance for credit losses by grossing up the initial amortized cost, which includes the purchase price and the allowance for credit losses. The expected credit losses of PCD debt securities are measured at the individual security level. The expected credit losses for PCD loans are measured based on the loan’s unpaid principal balance. Under this approach, there is no income statement impact from the acquisition. Subsequent changes in the allowance for credit losses on PCD assets will be recognized in Provision for credit losses on the Consolidated Statement of Income. The non-credit discount or premium will be accreted to interest income based on the effective interest rate on the PCD assets determined after the gross-up for the allowance for credit losses. Variable Interest and Voting Interest Entities — The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting interest entity or a variable interest entity (“VIE”). The Company first determines whether or not it has variable interests in the entity, which are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. If it is determined that the Company do not have a variable interest in the entity, no further analysis is required and the entity is not consolidated. A VIE is an entity that lacks equity investors or whose equity investors do not have a controlling financial interest in the entity through their equity investments. The Company consolidates a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. For entities that do not meet the definition of a VIE, the entity is considered a voting interest entity. The Company consolidates these entities if it can exert control over the financial and operating policies of an investee, which can occur if the Company has a more than 50% voting interest in the entity. Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net — The Company records the investments in qualified affordable housing partnerships, net, using primarily the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in Income tax expense on the Consolidated Statement of Income . The Company records investments in tax credit and other investments, net, using either the equity method or the measurement alternative method of accounting. The tax credits are recognized on the Consolidated Financial Statements to the extent they are utilized on the Company’s income tax returns in the year the credit arises under the flow-through method of accounting. The investments are evaluated for possible OTTI on an annual basis or on an interim basis, if an event occurs that would trigger potential impairment. OTTI charges and impairment recoveries are recorded within Amortization of tax credit and other investments on the Consolidated Statement of Income. See Note 2 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K for a discussion on the Company’s impairment evaluation and monitoring process of tax credit investments. Premises and Equipment, Net — The Company’s premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are computed based on the straight-line method over the estimated useful lives of the various classes of assets. The ranges of estimated useful lives for the principal classes of assets are as follows: Premises and Equipment Useful Lives Buildings 25 years Furniture, fixtures and equipment, and building improvements 3 to 7 years Leasehold improvements Term of lease or useful life, whichever is shorter The Company reviews its long-lived assets for impairment annually, or when events or changes in circumstances indicate that the carrying amounts of these assets may not be recoverable. An asset is considered impaired when the fair value, which is the expected undiscounted cash flows over the remaining useful life, is less than the net book value. The excess of the net book value over its fair value is charged as impairment loss to noninterest expense. Goodwill — Goodwill represents the excess of the purchase price over the fair value of net assets acquired in an acquisition. Goodwill is tested for impairment on an annual basis as of December 31, or more frequently as events occur or circumstances change that indicate a potential impairment at the reporting unit level. The Company assesses goodwill for impairment at each operating segment level. The Company organizes its operations into three reporting segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other. For information on how the reporting units are identified and the components are aggregated, see Note 17 — Business Segments to the Consolidated Financial Statements in this Form 10-K. The Company has the option to perform a qualitative assessment of goodwill or elect to bypass the qualitative test and proceed directly to a quantitative test. If the Company performs a qualitative assessment of goodwill to test for impairment and concludes it is more likely than not that a reporting unit’s fair value is greater than its carrying value, quantitative tests are not required. If the qualitative analysis indicates that it is more likely than not that a reporting unit’s fair value is less than its carrying value, the Company is required to perform a quantitative assessment to determine if there is goodwill impairment. Factors considered in the qualitative assessments include but are not limited to macroeconomic conditions, industry and market considerations, financial performance of the respective operating segment and other reporting unit specific considerations. The Company uses a combined income and market approach in its quantitative valuation methodologies. A quantitative valuation involves determining the fair value of each reporting unit and comparing the fair value to its corresponding carrying value. Goodwill impairment loss is recorded as a charge to noninterest expense and an adjustment to the carrying value of goodwill. Subsequent reversals of goodwill impairment are not allowed. Derivatives — As part of its asset/liability management strategy, the Company uses derivative financial instruments to mitigate exposure to interest rate and foreign currency risks, and to assist customers with their risk management objectives. Derivatives utilized by the Company include primarily swaps, forwards and option contracts. Derivative instruments are included in Other assets or Accrued expenses and other liabilities on the Consolidated Balance Sheet at fair value. The related cash flows are recognized on the Cash flows from operating activities section on the Consolidated Statement of Cash Flows. The Company uses its accounting hedges based on the exposure being hedged as either fair value hedges, cash flow hedges or hedges of the net investments in certain foreign operations. For fair value hedges of interest rate risk, changes in fair value of derivatives are reported within Interest expense on the Consolidated Statement of Income. Changes in fair value of derivatives designated as hedges of the net investments in foreign operations are recorded as a component of AOCI. For cash flow hedges of floating-rate interest payments, the change in the fair value of hedges is recognized in AOCI on the Consolidated Balance Sheet and reclassified to earnings in the same period when the hedged cash flows impact earnings. Reclassified gains and losses of cash flow hedges are recorded in the same line item as the hedged interest payment within Interest expense or as interest receipts within Interest and dividend income on the Consolidated Statements of Income. All derivatives designated as fair value hedges and hedges of the net investments in certain foreign operations are linked to specific hedged items or to groups of specific assets and liabilities on the Consolidated Balance Sheet. Cash flow hedges are linked to the forecasted transactions related to a recognized asset or liability. To qualify as an accounting hedge under the hedge accounting rules (versus an economic hedge where hedge accounting is not sought), a derivative must be highly effective in offsetting the risk designated as being hedged. The Company formally documents its hedging relationships at inception, including the identification of the hedging instruments and the hedged items, as well as its risk management

Fair Value Measurement and Fair

Fair Value Measurement and Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurement and Fair Value of Financial Instruments	Fair Value Measurement and Fair Value of Financial Instruments Under applicable accounting standards, the Company measures a portion of its assets and liabilities at fair value. These assets and liabilities are predominantly recorded at fair value on a recurring basis. From time to time, certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, they are not measured at fair value on an ongoing basis but are subject to fair value adjustments only as required through the application of an accounting method such as lower of cost or fair value or write-down of individual assets. The Company categorizes its assets and liabilities into three levels based on the established fair value hierarchy and conducts a review of fair value hierarchy classifications on a quarterly basis. For more information regarding the fair value hierarchy and how the Company measures fair value, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Fair Value to the Consolidated Financial Statements in this Form 10-K. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following section describes the valuation methodologies used by the Company to measure financial assets and liabilities on a recurring basis, as well as the general classification of these instruments within the fair value hierarchy. Available-for-Sale Debt Securities — The fair value of AFS debt securities is generally determined by independent external pricing service providers who have experience in valuing these securities or by taking the average quoted market prices obtained from independent external brokers. The valuations provided by the third-party pricing service providers are based on observable market inputs, which include benchmark yields, reported trades, issuer spreads, benchmark securities, bids, offers, prepayment expectations and reference data obtained from market research publications. Inputs used by the third-party pricing service providers in valuing collateralized mortgage obligations and other securitization structures also include new issue data, monthly payment information, whole loan collateral performance, tranche evaluation and “To Be Announced” prices. In valuing securities issued by state and political subdivisions, inputs used by third-party pricing service providers also include material event notices. On a monthly basis, the Company validates the valuations provided by third-party pricing service providers to ensure that the fair value determination is consistent with the applicable accounting guidance and the financial instruments are properly classified in the fair value hierarchy. To perform this validation, the Company evaluates the fair values of securities by comparing the fair values provided by the third-party pricing service providers to prices from other available independent sources for the same securities. When significant variances in prices are identified, the Company further compares inputs used by different sources to ascertain the reliability of these sources. On a quarterly basis, the Company reviews the valuation inputs and methodology for each security category furnished by third-party pricing service providers. When a quoted price in an active market exists for the identical security, this price is used to determine the fair value and the AFS debt security is classified as Level 1. Level 1 AFS debt securities consist of U.S. Treasury securities. When pricing is unavailable from third-party pricing service providers for certain securities, the Company requests market quotes from various independent external brokers and utilizes the average quoted market prices. In addition, the Company obtains market quotes from other official published sources. As these valuations are based on observable inputs in the current marketplace, they are classified as Level 2. The Company periodically communicates with the independent external brokers to validate their pricing methodology. Information such as pricing sources, pricing assumptions, data inputs and valuation techniques are reviewed periodically. Equity Securities — Equity securities consisted of mutual funds as of both December 31, 2022 and 2021. The Company invested in these mutual funds for Community Reinvestment Act (“CRA”) purposes. The Company uses net asset value (“NAV”) information to determine the fair value of these equity securities. When NAV is available periodically and the equity securities can be put back to the transfer agents at the publicly available NAV, the fair value of the equity securities is classified as Level 1. When NAV is available periodically, but the equity securities may not be readily marketable at its periodic NAV in the secondary market, the fair value of these equity securities is classified as Level 2. Interest Rate Contracts — The Company enters into interest rate swap and option contracts that are not designated as hedging instruments with its borrowers to lock in attractive intermediate and long-term interest rates, resulting in the customer obtaining a synthetic fixed-rate loan. To economically hedge against the interest rate risks in the products offered to its customers, the Company enters into mirrored offsetting interest rate contracts with third-party financial institutions. The Company also enters into interest rate swap or interest rate collar contracts with institutional counterparties to hedge against certain variable interest rate borrowings and variable interest rate loans. These interest rate contracts with institutional counterparties are designated as cash flow hedges. The fair value of the interest rate swaps is determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments). The fair value of the interest rate options, which consist of floors and caps, is determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates fall below (rise above) the strike rate of the floors (caps). In addition, to comply with the provisions of ASC 820, Fair Value Measurement , the Company incorporates credit valuation adjustments to appropriately reflect both its own and the respective counterparty’s nonperformance risk in the fair value measurements of its derivatives. The credit valuation adjustments associated with the Company’s derivatives utilize model-derived credit spreads, which are Level 3 inputs. Considering the observable nature of all other significant inputs utilized, the Company classifies these derivative instruments as Level 2. Foreign Exchange Contracts — The Company enters into foreign exchange contracts to accommodate the business needs of its customers. For a majority of 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 Company also utilizes foreign exchange contracts that are not designated as hedging instruments to mitigate the economic effect of fluctuations in certain foreign currency on-balance sheet assets and liabilities, primarily foreign currency denominated deposits that it offers to its customers. 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. Valuation is measured using conventional valuation methodologies with observable market data. Due to the short-term nature of the majority of these contracts, the counterparties’ credit risks are considered nominal and result in no adjustments to the valuation of the foreign exchange contracts. Due to the observable nature of the inputs used in deriving the fair value of these contracts, the valuation of foreign exchange contracts is classified as Level 2. As of both December 31, 2022 and 2021, the Bank held foreign currency non-deliverable forward contracts to hedge its net investment in its China subsidiary, East West Bank (China) Limited, a non-U.S. dollar (“USD”) functional currency subsidiary in China. These foreign currency non-deliverable forward contracts were designated as net investment hedges. The fair value of foreign currency non-deliverable forward contracts is determined by comparing the contracted foreign exchange rate to the current market foreign exchange rate. Key inputs of the current market exchange rate include spot rates and forward rates of the contractual currencies. Foreign exchange forward curves are used to determine which forward rate pertains to a specific maturity. Due to the observable nature of the inputs used in deriving the estimated fair value, these instruments are classified as Level 2. Credit Contracts — The Company may periodically enter into credit risk participation agreements (“RPAs”) to manage the credit exposure on interest rate contracts associated with the syndicated loans. The Company may enter into protection sold or protection purchased RPAs with institutional counterparties. The fair value of RPAs is calculated by determining the total expected asset or liability exposure of the derivatives to the borrowers and applying the borrowers’ credit spread to that exposure. Total expected exposure incorporates both the current and potential future exposure of the derivatives, derived from using observable inputs, such as yield curves and volatilities. Since the majority of the inputs used to value the RPAs are observable, RPAs are classified as Level 2. Equity Contracts — As part of the loan origination process, the Company may obtain warrants to purchase preferred and/or common stock of the borrowers, which are mainly in the technology and life sciences sectors. As of both December 31, 2022 and 2021, the warrants included on the Consolidated Financial Statements were from public and private companies. The Company values these warrants based on the Black-Scholes option pricing model. For warrants from public companies, the model uses the underlying stock price, stated strike price, warrant expiration date, risk-free interest rate based on a duration-matched U.S. Treasury rate, and market-observable company-specific option volatility as inputs to value the warrants. Due to the observable nature of the inputs used in deriving the estimated fair value, warrants from public companies are classified as Level 2. For warrants from private companies, the model uses inputs such as the offering price observed in the most recent round of funding, stated strike price, warrant expiration date, risk-free interest rate based on duration-matched U.S. Treasury rate and option volatility. The Company applies proxy volatilities based on the industry sectors of the private companies. The model values are then adjusted for a general lack of liquidity due to the private nature of the underlying companies. Since both option volatility and liquidity discount assumptions are subject to management’s judgment, measurement uncertainty is inherent in the valuation of private company warrants. Due to the unobservable nature of the option volatility and liquidity discount assumptions used in deriving the estimated fair value, warrants from private companies are classified as Level 3. On a quarterly basis, the changes in the fair value of warrants from private companies are reviewed for reasonableness, and a measurement of uncertainty analysis on the option volatility and liquidity discount assumptions is performed. Commodity Contracts — The Company enters into energy commodity contracts consisting of swaps and options with its oil and gas loan customers, which allow them to hedge against the risk of fluctuation in energy commodity prices. The fair value of the commodity option contracts is determined using the Black-Scholes model and assumptions that include expectations of future commodity price and volatility. The future commodity contract price is derived from observable inputs such as the market price of the commodity. Commodity swaps are structured as an exchange of fixed cash flows for floating cash flows. The fair value of the commodity swaps is determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments) based on the market prices of the commodity. The fixed cash flows are predetermined based on the known volumes and fixed price as specified in the swap agreement. The floating cash flows are correlated with the change of forward commodity prices, which is derived from market corroborated futures settlement prices. As a result, the Company classifies these derivative instruments as Level 2 due to the observable nature of the significant inputs utilized. The following tables present financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2022 and 2021: ($ in thousands) Assets and Liabilities Measured at Fair Value on a Recurring Basis Quoted Prices in Significant Significant Total AFS debt securities: U.S. Treasury securities $ 606,203 $ — $ — $ 606,203 U.S. government agency and U.S. government sponsored enterprise debt securities — 461,607 — 461,607 U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities — 500,269 — 500,269 Residential mortgage-backed securities — 1,762,195 — 1,762,195 Municipal securities — 257,099 — 257,099 Non-agency mortgage-backed securities: Commercial mortgage-backed securities — 398,329 — 398,329 Residential mortgage-backed securities — 649,224 — 649,224 Corporate debt securities — 526,274 — 526,274 Foreign government bonds — 227,053 — 227,053 Asset-backed securities — 49,076 — 49,076 Collateralized loan obligations (“CLOs”) — 597,664 — 597,664 Total AFS debt securities $ 606,203 $ 5,428,790 $ — $ 6,034,993 Investments in tax credit and other investments: Equity securities $ 19,777 $ 4,177 $ — $ 23,954 Total investments in tax credit and other investments $ 19,777 $ 4,177 $ — $ 23,954 Derivative assets: Interest rate contracts $ — $ 440,283 $ — $ 440,283 Foreign exchange contracts — 53,109 — 53,109 Equity contracts — — 323 323 Commodity contracts — 261,613 — 261,613 Gross derivative assets $ — $ 755,005 $ 323 $ 755,328 Netting adjustments (1) $ — $ (614,783) $ — $ (614,783) Net derivative assets $ — $ 140,222 $ 323 $ 140,545 Derivative liabilities: Interest rate contracts $ — $ 584,516 $ — $ 584,516 Foreign exchange contracts — 44,117 — 44,117 Credit contracts — 23 — 23 Commodity contracts — 258,608 — 258,608 Gross derivative liabilities $ — $ 887,264 $ — $ 887,264 Netting adjustments (1) $ — $ (242,745) $ — $ (242,745) Net derivative liabilities $ — $ 644,519 $ — $ 644,519 ($ in thousands) Assets and Liabilities Measured at Fair Value on a Recurring Basis Quoted Prices in Significant Significant Total AFS debt securities: U.S. Treasury securities $ 1,032,681 $ — $ — $ 1,032,681 U.S. government agency and U.S. government sponsored enterprise debt securities — 1,301,971 — 1,301,971 U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities — 1,228,980 — 1,228,980 Residential mortgage-backed securities — 2,928,283 — 2,928,283 Municipal securities — 523,158 — 523,158 Non-agency mortgage-backed securities: Commercial mortgage-backed securities — 496,443 — 496,443 Residential mortgage-backed securities — 881,931 — 881,931 Corporate debt securities — 649,665 — 649,665 Foreign government bonds — 257,733 — 257,733 Asset-backed securities — 74,558 — 74,558 CLOs — 589,950 — 589,950 Total AFS debt securities $ 1,032,681 $ 8,932,672 $ — $ 9,965,353 Investments in tax credit and other investments: Equity securities $ 22,130 $ 4,474 $ — $ 26,604 Total investments in tax credit and other investments $ 22,130 $ 4,474 $ — $ 26,604 Derivative assets: Interest rate contracts $ — $ 240,222 $ — $ 240,222 Foreign exchange contracts — 21,033 — 21,033 Equity contracts — 5 215 220 Commodity contracts — 222,709 — 222,709 Gross derivative assets $ — $ 483,969 $ 215 $ 484,184 Netting adjustments (1) $ — $ (100,953) $ — $ (100,953) Net derivative assets $ — $ 383,016 $ 215 $ 383,231 Derivative liabilities: Interest rate contracts $ — $ 180,130 $ — $ 180,130 Foreign exchange contracts — 15,333 — 15,333 Credit contracts — 141 — 141 Commodity contracts — 194,567 — 194,567 Gross derivative liabilities $ — $ 390,171 $ — $ 390,171 Netting adjustments (1) $ — $ (232,727) $ — $ (232,727) Net derivative liabilities $ — $ 157,444 $ — $ 157,444 (1) Represents balance sheet netting of derivative assets and liabilities and related cash collateral under master netting agreements or similar agreements. See Note 5 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information. For the years ended December 31, 2022, 2021 and 2020, Level 3 fair value measurements that were measured on a recurring basis consisted of equity contracts issued by private companies. The following table provides a reconciliation of the beginning and ending balances of these equity contracts for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Equity contracts Beginning balance $ 215 $ 273 $ 421 Total gains included in earnings (1) 17 32 8,225 Issuances 91 12 — Settlements — (96) — Transfers out of Level 3 (2) — (6) (8,373) Ending balance $ 323 $ 215 $ 273 (1) Includes both realized and unrealized gain (losses) recorded in Lending fees on the Consolidated Statement of Income. The unrealized gains (losses) were $17 thousand, $(44) thousand, and $8.2 million for the years ended December 31, 2022, 2021 and 2020, respectively. (2) During the years ended December 31, 2021 and 2020, the Company transferred $6 thousand and $8.4 million, respectively, of equity contracts measured on a recurring basis out of Level 3 into Level 2 after the corresponding issuer of the equity warrant, which was previously a private company, completed its initial public offering and became a public company. The following table presents quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements as of December 31, 2022 and 2021. The significant unobservable inputs presented in the table below are those that the Company considers significant to the fair value of the Level 3 assets. The Company considers unobservable inputs to be significant if, by their exclusion, the fair value of the Level 3 assets would be impacted by a predetermined percentage change. ($ in thousands) Fair Value Valuation Unobservable Range of Weighted- Average of Inputs (1) December 31, 2022 Derivative assets: Equity contracts $ 323 Black-Scholes option pricing model Equity volatility 42% — 60% 54% Liquidity discount 47% 47% December 31, 2021 Derivative assets: Equity contracts $ 215 Black-Scholes option pricing model Equity volatility 44% — 54% 49% Liquidity discount 47% 47% (1) Weighted-average of inputs is calculated based on the fair value of equity contracts as of December 31, 2022 and 2021. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Assets measured at fair value on a nonrecurring basis include certain individually evaluated loans held-for-investment, investments in qualified affordable housing partnerships, tax credit and other investments, OREO, loans held-for-sale, and other nonperforming assets. Nonrecurring fair value adjustments result from the impairment on certain individually evaluated loans held-for-investment and investments in qualified affordable housing partnerships, tax credit and other investments, from write-downs of OREO and other nonperforming assets, or from the application of lower of cost or fair value on loans held-for-sale. Individually Evaluated Loans Held-for-Investment — Individually evaluated loans held-for-investment are classified as Level 3 assets. The following two methods are used to derive the fair value of individually evaluated loans held-for-investment: • Discounted cash flow valuation techniques that consist of developing an expected stream of cash flows over the life of the loans, and then calculating the present value of the loans by discounting the expected cash flows at a designated discount rate. • When the repayment of an individually evaluated loan is dependent on the sale of the collateral, the fair value of the loan is determined based on the fair value of the underlying collateral, which may take the form of real estate, inventory, equipment, contracts or guarantees. The fair value of the underlying collateral is generally based on third-party appraisals, or an internal valuation if a third-party appraisal is not required by regulations, or is unavailable. An internal valuation utilizes one or more valuation techniques such as the income, market and/or cost approaches. Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net — The Company conducts due diligence on its investments in qualified affordable housing partnerships, tax credit and other investments prior to the initial investment date and through the placed-in-service date. After these investments are either acquired or placed into service, the Company continues its periodic monitoring process to ensure book values are realizable and that there is no significant tax credit recapture risk. This monitoring process includes reviewing the quarterly financial statements, the annual tax returns of the investment entity, the annual financial statements of the guarantor (if any) and a comparison of the actual performance of the investment against the financial projections prepared at the time when the investment was made. The Company assesses its tax credit and other investments for possible OTTI on an annual basis or when events or circumstances suggest that the carrying amount of the investments may not be realizable. These circumstances can include, but are not limited to the following factors: • expected future cash flows that are less than the carrying amoun t of the investment; • changes in the economic, market or technological environment that could adversely affect the investee’s operations; and • other factors that raise doubt about the investee’s ability to continue as a going concern, such as negative cash flows from operations and the continuing prospects of the underlying operations of the investment. All available information is considered in assessing whether a decline in value is other-than-temporary. Generally, none of the aforementioned factors are individually conclusive and the relative importance placed on individual facts may vary depending on the situation. In accordance with ASC 323-10-35-32, Investments — Equity Method and Joint Ventures, an impairment charge would only be recognized in earnings for a decline in value that is determined to be other-than-temporary. Other Real Estate Owned — The Company’s OREO represents properties acquired through foreclosure, or through full or partial satisfaction of loans held-for-investment. These OREO properties are recorded at estimated fair value less the costs to sell at the time of foreclosure and at the lower of cost or estimated fair value less the costs to sell subsequent to acquisition. On a monthly basis, the current fair market value of each OREO property is reviewed to ensure that the current carrying value is appropriate. OREO properties are classified as Level 3. Loans Held-for-Sale — Loans held-for-investment subsequently transferred to held-for-sale are recorded at the lower of cost or fair value upon transfer. Loans held-for-sale may be measured at fair value on a nonrecurring basis when fair value is less than cost. Fair value is generally determined based on available market data for similar loans and therefore, are classified as Level 2. Other Nonperforming Assets — Other nonperforming assets are recorded at fair value upon transfer from loans to foreclosed assets. Subsequently, foreclosed assets are recorded at the lower of carrying value or fair value. Fair value is based on independent market prices, appraised values of the collateral or management’s estimated recovery of the foreclosed asset. The Company records an impairment when the foreclosed asset’s fair value declines below its carrying value. The fair value measurement of other nonperforming assets is classified within one of the three levels in a valuation hierarchy based upon the observability of inputs to the valuation as of the measurement date. The following tables present the carrying amounts of assets that were still held and had fair value adjustments measured on a nonrecurring basis as of December 31, 2022 and 2021: ($ in thousands) Assets Measured at Fair Value on a Nonrecurring Basis Quoted Prices in Significant Significant Fair Value Measurements Loans held-for-investment: Commercial: C&I $ — $ — $ 40,011 $ 40,011 CRE: CRE — — 31,380 31,380 Total commercial — — 71,391 71,391 Consumer: Residential mortgage: HELOCs — — 1,223 1,223 Total consumer — — 1,223 1,223 Total loans held-for-investment $ — $ — $ 72,614 $ 72,614 ($ in thousands) Assets Measured at Fair Value on a Nonrecurring Basis Quoted Prices in Significant Significant Fair Value Measurements Loans held-for-investment: Commercial: C&I $ — $ — $ 102,349 $ 102,349 CRE: CRE — — 21,891 21,891 Total commercial — — 124,240 124,240 Consumer: Residential mortgage: HELOCs — — 2,744 2,744 Total consumer — — 2,744 2,744 Total loans held-for-investment $ — $ — $ 126,984 $ 126,984 Other nonperforming assets $ 391 $ — $ — $ 391 The following table presents the increase (decrease) in the fair value of certain assets held at the end of the respective reporting periods, for which a nonrecurring fair value adjustment was recognized for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Loans held-for-investment: Commercial: C&I $ (25,996) $ (9,580) $ (48,154) CRE: CRE (7,098) (10,231) (11,289) Total commercial (33,094) (19,811) (59,443) Consumer: Residential mortgage: HELOCs 166 (4) (175) Other consumer — — 2,491 Total consumer $ 166 $ (4) $ 2,316 Total loans held-for-investment $ (32,928) $ (19,815) $ (57,127) Investments in tax credit and other investments, net $ 469 $ 877 $ (3,868) OREO $ — $ — $ (3,680) Other nonperforming assets $ (6,861) $ (4,241) $ — The following table presents the quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements that are measured on a nonrecurring basis as of December 31, 2022 and 2021: ($ in thousands) Fair Value Valuation Unobservable Range of Weighted- (1) December 31, 2022 Loans held-for-investment $ 23,322 Discounted cash flows Discount 4% — 6% 4% $ 17,912 Fair value of collateral Discount 15% — 75% 37% $ 31,380 Fair value of property Selling cost 8% 8% December 31, 2021 Loans held-for-investment $ 64,919 Discounted cash flows Discount 4% — 15% 7% $ 38,537 Fair value of collateral Discount 15% — 75% 41% $ 23,528 Fair value of property Selling cost 8% 8% (1) Weighted-average of inputs is based on the relative fair value of the respective assets as of December 31, 2022 and 2021. Disclosures about the Fair Value of Financial Instruments The following tables present the fair value estimates for financial instruments as of December 31, 2022 and 2021, excluding financial instruments recorded at fair value on a recurring basis as they are included in the tables presented elsewhere in this Note. The carrying amounts in the following tables are recorded on the Consolidated Balance Sheet under the indicated captions, except for accrued interest receivable, restricted equity securities, at cost, and mortgage servicing rights that are included in Other assets , and accrued interest payable which is included in Accrued expenses and other liabilities . These financial assets and liabilities are measured on an amortized cost basis on the Company’s Consolidated Balance Sheet. ($ in thousands) December 31, 2022 Carrying Level 1 Level 2 Level 3 Estimated Financial assets: Cash and cash equivalents $ 3,481,784 $ 3,481,784 $ — $ — $ 3,481,784 Interest-bearing deposits with banks $ 139,021 $ — $ 139,021 $ — $ 139,021 Resale agreements $ 792,192 $ — $ 693,656 $ — $ 693,656 HTM debt securities $ 3,001,868 $ 471,469 $ 1,983,702 $ — $ 2,455,171 Restricted equity securities, at cost $ 78,624 $ — $ 78,624 $ — $ 78,624 Loans held-for-sale $ 25,644 $ — $ 25,644 $ — $ 25,644 Loans held-for-investment, net $ 47,606,785 $ — $ — $ 46,670,690 $ 46,670,690 Mortgage servicing rights $ 6,235 $ — $ — $ 10,917 $ 10,917 Accrued interest receivable $ 263,430 $ — $ 263,430 $ 263,430 Financial liabilities: Demand, checking, savings and money market deposits $ 42,637,316 $ — $ 42,637,316 $ — $ 42,637,316 Time deposits $ 13,330,533 $ — $ 13,228,777 $ — $ 13,228,777 Repurchase agreements $ 300,000 $ — $ 304,097 $ — $ 304,097 Long-term debt $ 147,950 $ — $ 143,483 $ — $ 143,483 Accrued interest payable $ 37,198 $ — $ 37,198 $ — $ 37,198 ($ in thousands) December 31, 2021 Carrying Level 1 Level 2 Level 3 Estimated Financial assets: Cash and cash equivalents $ 3,912,935 $ 3,912,935 $ — $ — $ 3,912,935 Interest-bearing deposits with banks $ 736,492 $ — $ 736,492 $ — $ 736,492 Resale agreements $ 2,353,503 $ — $ 2,335,901 $ — $ 2,335,901 Restricted equity securities, at cost $ 77,434 $ — $ 77,434 $ — $ 77,434 Loans held-for-sale $ 635 $ — $ 635 $ — $ 635 Loans held-for-investment, net $ 41,152,202 $ — $ — $ 41,199,599 $ 41,199,599 Mortgage servicing rights $ 5,706 $ — $ — $ 9,104 $ 9,104 Accrued interest receivable $ 159,833 $ — $ 159,833 $ — $ 159,833 Financial liabilities: Demand, checking, savings and money market deposits $ 45,388,550 $ — $ 45,388,550 $ — $ 45,388,550 Time deposits $ 7,961,982 $ — $ 7,966,116 $ — $ 7,966,116 FHLB advances $ 249,331 $ — $ 250,372 $ — $ 250,372 Repurchase agreements $ 300,000 $ — $ 310,525 $ — $ 310,525 Long-term debt $ 147,658 $ — $ 151,020 $ — $ 151,020 Accrued interest payable $ 11,435 $ — $ 11,435 $ — $ 11,435

Assets Purchased under Resale A

Assets Purchased under Resale Agreements and Sold under Repurchase Agreements	12 Months Ended
	Dec. 31, 2022
RESALE AND REPURCHASE AGREEMENTS
Assets Purchased under Resale Agreements and Sold under Repurchase Agreements	Assets Purchased under Resale Agreements and Sold under Repurchase Agreements Assets Purchased under Resale Agreements With resale agreements, the Company is exposed to credit risk for both the counterparties and the underlying collateral. The Company manages credit exposure from certain transactions by entering into master netting agreements and collateral arrangements with the counterparties. The relevant agreements allow for the efficient closeout of the transaction, liquidation and set-off of collateral against the net amount owed by the counterparty following a default. It is also the Company’s policy to take possession, where possible, of the assets underlying resale agreements. As a result of the Company’s credit risk mitigation practices with respect to resale agreements as described above, the Company did not hold any reserves for credit impairment with respect to these agreements as of both December 31, 2022 and 2021. Securities Purchased under Resale Agreements — Total securities purchased under resale agreements were $760.0 million and $1.33 billion as of December 31, 2022 and 2021, respectively. The weighted-average yields were 2.12%, 1.53% and 1.94% for the years ended December 31, 2022, 2021 and 2020, respectively. Loans Purchased under Resale Agreements — Total loans purchased under resale agreements were $32.2 million and $1.02 billion a s of December 31, 2022 and 2021, respectively . The weighted-average yields were 2.16%, 1.53% and 2.27% for the years ended December 31, 2022, 2021 and 2020, respectively. Assets Sold under Repurchase Agreements — As of December 31, 2022, securities sold under the repurchase agreements consisted of U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities, and U.S. Treasury securities. Gross repurchase agreements were $300.0 million as of both December 31, 2022 and 2021. The weighted-average interest rates were 3.07%, 2.61% and 3.25% for the years ended December 31, 2022, 2021 and 2020, respectively. There were no extinguishment charges recorded in both 2022 and 2021. In comparison, for the year ended December 31, 2020, the Company recorded $8.7 million of charges related to the extinguishment of $150.0 million of repurchase agreements. As of December 31, 2022, all repurchase agreements will mature in 2023. Balance Sheet Offsetting The Company’s resale and repurchase agreements are transacted under legally enforceable master repurchase agreements that, in the event of default by the counterparty, provide the Company the right to liquidate securities held and to offset receivables and payables with the same counterparty. The Company nets resale and repurchase transactions with the same counterparty on the Consolidated Balance Sheet when it has a legally enforceable master netting agreement and the transactions are eligible for netting under ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements . Collateral received includes securities and loans that are not recognized on the Consolidated Balance Sheet. Collateral pledged consists of securities that are not netted on the Consolidated Balance Sheet against the related collateralized liability. Securities received or pledged as collateral in resale and repurchase agreements with other financial institutions may also be sold or re-pledged by the secured party, and are usually delivered to and held by the third-party trustees. The following tables present the resale and repurchase agreements included on the Consolidated Balance Sheet as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Assets Gross Amounts Gross Amounts Net Amounts of Gross Amounts Net Collateral Received Resale agreements $ 792,192 $ — $ 792,192 $ (701,790) (1) $ 90,402 Liabilities Gross Amounts Gross Amounts Net Amounts of Gross Amounts Not Offset on the Net Collateral Pledged Repurchase agreements $ 300,000 $ — $ 300,000 $ (300,000) (2) $ — ($ in thousands) December 31, 2021 Assets Gross Amounts Gross Amounts Net Amounts of Gross Amounts Net Collateral Received Resale agreements $ 2,353,503 $ — $ 2,353,503 $ (2,327,687) (1) $ 25,816 Liabilities Gross Amounts Gross Amounts Net Amounts of Gross Amounts Net Collateral Pledged Repurchase agreements $ 300,000 $ — $ 300,000 $ (300,000) (2) $ — (1) Represents the fair value of assets the Company has received under resale agreements, limited for table presentation purposes to the amount of the recognized asset due from each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above. (2) Represents the fair value of assets the Company has pledged under repurchase agreements, limited for table presentation purposes to the amount of the recognized liability due to each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above. In addition to the amounts included in the tables above, the Company also has balance sheet netting related to derivatives. Refer to Note 5 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

Securities

Securities	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The following tables present the amortized cost, gross unrealized gains and losses, and fair value by major categories of AFS and HTM debt securities as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Amortized Gross Gross Fair AFS debt securities: U.S. Treasury securities $ 676,306 $ — $ (70,103) $ 606,203 U.S. government agency and U.S. government-sponsored enterprise debt securities 517,806 67 (56,266) 461,607 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 577,392 — (77,123) 500,269 Residential mortgage-backed securities 2,011,054 41 (248,900) 1,762,195 Municipal securities: 303,884 3 (46,788) 257,099 Non-agency mortgage-backed securities: Commercial mortgage-backed securities 447,512 213 (49,396) 398,329 Residential mortgage-backed securities 762,202 — (112,978) 649,224 Corporate debt securities 673,502 — (147,228) 526,274 Foreign government bonds 241,165 174 (14,286) 227,053 Asset-backed securities 51,152 — (2,076) 49,076 CLOs 617,250 — (19,586) 597,664 Total AFS debt securities 6,879,225 498 (844,730) 6,034,993 HTM debt securities U.S. Treasury securities 524,081 — (52,612) 471,469 U.S. government agency and U.S. government-sponsored enterprise debt securities 998,972 — (209,560) 789,412 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 506,965 — (98,566) 408,399 Residential mortgage-backed securities 782,141 — (148,230) 633,911 Municipal securities 189,709 — (37,729) 151,980 Total HTM debt securities 3,001,868 — (546,697) 2,455,171 Total debt securities $ 9,881,093 $ 498 $ (1,391,427) $ 8,490,164 ($ in thousands) December 31, 2021 Amortized Gross Gross Fair AFS debt securities: U.S. Treasury securities $ 1,049,238 $ 130 $ (16,687) $ 1,032,681 U.S. government agency and U.S. government-sponsored enterprise debt securities 1,333,984 2,697 (34,710) 1,301,971 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 1,242,043 15,791 (28,854) 1,228,980 Residential mortgage-backed securities 2,968,789 8,629 (49,135) 2,928,283 Municipal securities 519,381 10,065 (6,288) 523,158 Non-agency mortgage-backed securities: Commercial mortgage-backed securities 498,920 3,000 (5,477) 496,443 Residential mortgage-backed securities 889,937 971 (8,977) 881,931 Corporate debt securities 657,516 8,738 (16,589) 649,665 Foreign government bonds 260,447 767 (3,481) 257,733 Asset-backed securities 74,674 185 (301) 74,558 CLOs 592,250 52 (2,352) 589,950 Total AFS debt securities $ 10,087,179 $ 51,025 $ (172,851) $ 9,965,353 During the first quarter of 2022, the Company transferred $3.01 billion in fair value of debt securities from AFS to HTM. At the time of the transfer, $113.0 million of unrealized losses, net of tax, was retained in AOCI. As of December 31, 2022 and 2021, the amortized cost of debt securities excluded accrued interest receivable of $41.8 million and $33.1 million, respectively, which are included in Other assets on the Consolidated Balance Sheet. For the Company’s accounting policy related to debt securities’ accrued interest receivable, see Note 1 — Summary of Significant Accounting Policies — Allowance for Credit Losses on Available-for-Sale Debt Securities and Allowance for Credit Losses on Held-to-Maturity Debt Securities to the Consolidated Financial Statements in this Form 10-K. Unrealized Losses of Available-for-Sale Debt Securities The following tables present the fair value and the associated gross unrealized losses of the Company’s AFS debt securities, aggregated by investment category and the length of time that the securities have been in a continuous unrealized loss position, as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Less Than 12 Months 12 Months or More Total Fair Gross Fair Gross Fair Gross AFS debt securities: U.S. Treasury securities $ 131,843 $ (8,761) $ 474,360 $ (61,342) $ 606,203 $ (70,103) U.S. government agency and U.S. government-sponsored enterprise debt securities 97,403 (6,902) 214,136 (49,364) 311,539 (56,266) U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 252,144 (30,029) 248,125 (47,094) 500,269 (77,123) Residential mortgage-backed securities 307,536 (20,346) 1,448,658 (228,554) 1,756,194 (248,900) Municipal securities 95,655 (10,194) 159,439 (36,594) 255,094 (46,788) Non-agency mortgage-backed securities: Commercial mortgage-backed securities 106,184 (3,309) 282,301 (46,087) 388,485 (49,396) Residential mortgage-backed securities 22,715 (1,546) 626,509 (111,432) 649,224 (112,978) Corporate debt securities 173,595 (17,907) 352,679 (129,321) 526,274 (147,228) Foreign government bonds 107,576 (429) 36,143 (13,857) 143,719 (14,286) Asset-backed securities 12,450 (524) 36,626 (1,552) 49,076 (2,076) CLOs 144,365 (4,735) 453,299 (14,851) 597,664 (19,586) Total AFS debt securities $ 1,451,466 $ (104,682) $ 4,332,275 $ (740,048) $ 5,783,741 $ (844,730) ($ in thousands) December 31, 2021 Less Than 12 Months 12 Months or More Total Fair Gross Fair Gross Fair Gross AFS debt securities: U.S. Treasury securities $ 935,776 $ (14,689) $ 47,881 $ (1,998) $ 983,657 $ (16,687) U.S. government agency and U.S. government-sponsored enterprise debt securities 773,647 (18,000) 402,907 (16,710) 1,176,554 (34,710) U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 440,734 (13,589) 257,745 (15,265) 698,479 (28,854) Residential mortgage-backed securities 2,138,542 (37,691) 330,522 (11,444) 2,469,064 (49,135) Municipal securities 177,065 (5,682) 17,003 (606) 194,068 (6,288) Non-agency mortgage-backed securities: Commercial mortgage-backed securities 301,925 (4,158) 40,013 (1,319) 341,938 (5,477) Residential mortgage-backed securities 707,792 (8,966) 6,431 (11) 714,223 (8,977) Corporate debt securities 183,916 (3,084) 251,494 (13,505) 435,410 (16,589) Foreign government bonds 27,097 (5) 133,279 (3,476) 160,376 (3,481) Asset-backed securities 24,885 (301) — — 24,885 (301) CLOs 221,586 (64) 291,712 (2,288) 513,298 (2,352) Total AFS debt securities $ 5,932,965 $ (106,229) $ 1,778,987 $ (66,622) $ 7,711,952 $ (172,851) As of December 31, 2022, the Company had 559 AFS debt securities in a gross unrealized loss position with no credit impairment, primarily consisting of 263 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities, 100 non-agency mortgage-backed securities, 68 corporate debt securities, and 15 U.S. Treasury securities. In comparison, as of December 31, 2021, the Company had 431 AFS debt securities in a gross unrealized loss position with no credit impairment, primarily consisting of 180 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities, 50 U.S. government agency and U.S. government-sponsored agency debt securities, 21 U.S. Treasury securities, and 30 corporate debt securities. Allowance for Credit Losses on Available-for-Sale Debt Securities The Company evaluates each AFS debt security where the fair value has declined below amortized cost. For a discussion of the factors and criteria the Company uses in analyzing securities for impairment related to credit losses, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Allowance for Credit Losses on Available-for-Sale Debt Securities to the Consolidated Financial Statements in this Form 10-K. The gross unrealized losses presented in the preceding tables were primarily attributable to interest rate movement and the widening of liquidity and/or credit spreads. U.S. Treasury, U.S. government agency, U.S. government-sponsored agency, and U.S. government-sponsored enterprise mortgage-backed securities are issued, guaranteed, or otherwise supported by the U.S. government and have a zero credit loss assumption. The other securities that were in an unrealized loss position as of December 31, 2022 were mainly comprised of the following: • Non-agency mortgage-backed securities — The market value decline as of December 31, 2022, was primarily due to interest rate movement and spread widening. Since these securities are rated investment grade by NRSROs, or have high priority in the cash flow waterfall within the securitization structure, and the contractual payments have historically been on time, the Company believes the risk of credit losses on these securities is low. • Corporate debt securities — The market value decline as of December 31, 2022 was primarily due to interest rate movement and spread widening. Since these securities are nearly all rated investment grade by NRSROs or, if not, the issuer is a well-capitalized financial institution with strong profitability, and the contractual payments from these bonds have been, and are expected to be, received on time, the Company believes the risk of credit losses on these securities is low. As of both December 31, 2022 and 2021, the Company had the intent to hold the AFS debt securities with unrealized losses through the anticipated recovery period and it was more-likely-than-not that the Company will not have to sell these securities before the recovery of their amortized cost. The issuers of these securities have not, to the Company’s knowledge, established any cause for default on these securities. As a result, the Company expects to recover the entire amortized cost basis of these securities. Accordingly, there was no allowance for credit losses as of both December 31, 2022 and 2021 against these securities. In addition, there was no provision for credit losses recognized for the years ended December 31, 2022, 2021 and 2020. Allowance for Credit Losses on Held-to-Maturity Debt Securities The Company separately evaluates its HTM debt securities for any credit losses using an expected loss model, similar to the methodology used for loans. For additional information on the Company’s credit loss methodology, refer to Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Allowance for Credit Losses on Held-to-Maturity Debt Securities to the Consolidated Financial Statements in this Form 10-K. The Company monitors the credit quality of the HTM debt securities using external credit ratings. As of December 31, 2022, all HTM securities were rated investment grade by NRSROs and issued, guaranteed, or supported by U.S. government entities and agencies. Accordingly, the Company applied a zero credit loss assumption and no allowance for credit losses was recorded as of December 31, 2022. Overall, the Company believes that the credit support levels of the debt securities are strong and, based on current assessments and macroeconomic forecasts, expects that full contractual cash flows will be received. Realized Gains and Losses The following table presents gross realized gains and tax expense related to the sales of AFS debt securities for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Gross realized gains $ 1,306 $ 1,568 $ 12,299 Related tax expense $ 386 $ 464 $ 3,636 Interest Income The following table presents the composition of interest income on debt securities for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Taxable interest $ 179,720 $ 131,985 $ 75,590 Nontaxable interest 19,186 11,998 6,963 Total interest income on debt securities $ 198,906 $ 143,983 $ 82,553 Contractual Maturities of Available-for-Sale and Held-to-Maturity Debt Securities The following tables present the contractual maturities, amortized cost, fair value and weighted average yields of AFS and HTM debt securities as of December 31, 2022. Expected maturities will differ from contractual maturities on certain securities as the issuers and borrowers of the underlying collateral may have the right to call or prepay obligations with or without prepayment penalties. ($ in thousands) Within One Year After One Year through Five Years After Five Years through Ten Years After Ten Years Total AFS debt securities: U.S. Treasury securities Amortized cost $ — $ 576,585 $ 99,721 $ — $ 676,306 Fair value — 521,174 85,029 — 606,203 Weighted-average yield (1) — % 1.28 % 0.74 % — % 1.20 % U.S. government agency and U.S. government-sponsored enterprise debt securities Amortized cost 100,000 149,772 100,000 168,034 517,806 Fair value 99,939 144,796 81,973 134,899 461,607 Weighted-average yield (1) 4.97 % 3.71 % 1.26 % 2.10 % 2.96 % U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities Amortized cost — 31,165 161,960 2,395,321 2,588,446 Fair value — 29,643 146,737 2,086,084 2,262,464 Weighted-average yield (1) — % 3.20 % 2.69 % 3.22 % 3.19 % Municipal securities Amortized cost 2,307 34,865 6,847 259,865 303,884 Fair value 2,283 32,160 5,780 216,876 257,099 Weighted-average yield (1) (2) 2.21 % 2.40 % 1.85 % 2.25 % 2.26 % Non-agency mortgage-backed securities Amortized cost 57,190 158,574 22,788 971,162 1,209,714 Fair value 56,222 151,239 22,000 818,092 1,047,553 Weighted-average yield (1) 4.93 % 3.78 % 0.84 % 2.45 % 2.72 % Corporate debt securities Amortized cost 10,000 — 334,502 329,000 673,502 Fair value 9,856 — 292,049 224,369 526,274 Weighted average yield (1) 3.77 % — % 3.59 % 1.98 % 2.81 % Foreign government bonds Amortized cost 133,999 7,166 50,000 50,000 241,165 Fair value 134,112 7,128 49,670 36,143 227,053 Weighted-average yield (1) 2.15 % 2.24 % 4.18 % 1.50 % 2.44 % Asset-backed securities Amortized cost — — — 51,152 51,152 Fair value — — — 49,076 49,076 Weighted-average yield (1) — % — % — % 5.16 % 5.16 % CLOs Amortized cost — — 25,000 592,250 617,250 Fair value — — 24,301 573,363 597,664 Weighted average yield (1) — % — % 5.23 % 5.40 % 5.40 % Total AFS debt securities Amortized cost $ 303,496 $ 958,127 $ 800,818 $ 4,816,784 $ 6,879,225 Fair value $ 302,412 $ 886,140 $ 707,539 $ 4,138,902 $ 6,034,993 Weighted-average yield (1) 3.66 % 2.18 % 2.76 % 3.16 % 3.00 % ($ in thousands) Within One Year After One Year through Five Years After Five Years through Ten Years After Ten Years Total HTM debt securities: U.S. Treasury securities Amortized cost $ — $ 404,252 $ 119,829 $ — $ 524,081 Fair value — 364,360 107,109 — 471,469 Weighted-average yield (1) — % 1.01 % 1.18 % — % 1.05 % U.S. government agency and U.S. government-sponsored enterprise debt securities Amortized cost — — 255,967 743,005 998,972 Fair value — — 216,340 573,072 789,412 Weighted-average yield (1) — % — % 1.94 % 1.88 % 1.90 % U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities Amortized cost — — 96,096 1,193,010 1,289,106 Fair value — — 80,706 961,604 1,042,310 Weighted-average yield (1) — % — % 1.56 % 1.68 % 1.67 % Municipal securities Amortized cost — — — 189,709 189,709 Fair value — — — 151,980 151,980 Weighted-average yield (1) (2) — % — % — % 1.98 % 1.98 % Total HTM debt securities Amortized cost $ — $ 404,252 $ 471,892 $ 2,125,724 $ 3,001,868 Fair value $ — $ 364,360 $ 404,155 $ 1,686,656 $ 2,455,171 Weighted-average yield (1) — % 1.01 % 1.67 % 1.78 % 1.66 % (1) Weighted-average yields are computed based on amortized cost balances. (2) Yields on tax-exempt securities are not presented on a tax-equivalent basis. As of December 31, 2022 and 2021, AFS and HTM debt securities with carrying values of $794.2 million and $803.9 million, respectively, were pledged to secure public deposits, repurchase agreements and for other purposes required or permitted by law. Restricted Equity Securities The following table presents the restricted equity securities included in Other assets on the Consolidated Balance Sheet as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 2021 FRBSF stock $ 61,374 $ 60,184 FHLB stock 17,250 17,250 Total restricted equity securities $ 78,624 $ 77,434

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives The Company uses derivative instruments to manage exposure to market risk, primarily interest rate and foreign currency risk, as well as to assist customers with their risk management objectives. The Company’s goal is to manage interest rate sensitivity and volatility to mitigate the effect of interest rate changes on earnings or capital. The Company also uses foreign exchange contracts to manage the foreign exchange rate risk associated with certain foreign currency-denominated assets and liabilities, as well as the Bank’s investment in East West Bank (China) Limited. The Company recognizes all derivatives on the Consolidated Balance Sheet at fair value. While the Company designates certain derivatives as hedging instruments in a qualifying hedge accounting relationship, other derivatives serve as economic hedges. For additional information on the Company’s derivatives and hedging activities, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Derivatives to the Consolidated Financial Statements in this Form 10-K. The following table presents the notional amounts and fair values of the Company’s derivatives as of December 31, 2022 and 2021. The fair values are presented on a gross basis prior to the application of bilateral collateral and master netting agreements, but after the application of variation margin payments as settlement to fair values of contracts cleared through central clearing organizations. Total derivative asset and liability fair values are adjusted to reflect the effects of legally enforceable master netting agreements and cash collateral received or paid. The resulting net derivative asset and liability fair values are included in Other assets and Accrued expenses and other liabilities , respectively, on the Consolidated Balance Sheet. ($ in thousands) December 31, 2022 December 31, 2021 Notional Fair Value Notional Fair Value Derivative Derivative Derivative Derivative Derivatives designated as hedging instruments: Cash flow hedges: Interest rate contracts $ 3,450,000 $ 13,455 $ 19,687 $ 275,000 $ — $ 57 Net investment hedges: Foreign exchange contracts 84,832 5,590 — 86,531 — 225 Total derivatives designated as hedging instruments $ 3,534,832 $ 19,045 $ 19,687 $ 361,531 $ — $ 282 Derivatives not designated as hedging instruments: Interest rate contracts $ 16,932,414 $ 426,828 $ 564,829 $ 17,575,420 $ 240,222 $ 179,905 Commodity contracts — (1) 261,613 258,608 — (1) 222,709 194,567 Foreign exchange contracts 2,982,891 47,519 44,117 1,874,681 21,033 15,276 Credit contracts 140,950 (2) — 23 72,560 (2) — 141 Equity contracts — (3) 323 — — (3) 220 — Total derivatives not designated as hedging instruments $ 20,056,255 $ 736,283 $ 867,577 $ 19,522,661 $ 484,184 $ 389,889 Gross derivative assets/liabilities $ 755,328 $ 887,264 $ 484,184 $ 390,171 Less: Master netting agreements (242,745) (242,745) (58,679) (58,679) Less: Cash collateral received/paid (372,038) — (42,274) (174,048) Net derivative assets/liabilities $ 140,545 $ 644,519 $ 383,231 $ 157,444 (1) The notional amount of the Company’s commodity contracts totaled 12,005 thousand barrels of crude oil and 247,704 thousand units of natural gas, measured in million British thermal units (“MMBTUs”) as of December 31, 2022. In comparison, the notional amount of the Company’s commodity contracts totaled 17,924 thousand barrels of crude oil and 218,770 thousand MMBTUs of natural gas as of December 31, 2021. (2) Notional amount for credit contracts reflects the Company’s pro-rata share of the derivative instruments in RPAs. (3) The Company held equity contracts in one public company and 13 private companies as of December 31, 2022, and one public company and 12 private companies as of December 31, 2021. Derivatives Designated as Hedging Instruments Fair Value Hedges — The Company entered into interest rate swaps to hedge changes in the fair value of certain certificates of deposit due to changes in the designated benchmark interest rate. The interest rate swaps converted the certificates of deposit from fixed-rate payments to floating-rate payments. Changes in the fair values of the interest rate swaps and certificates of deposit were recorded in Interest Expense on the Consolidated Statement of Income. During 2020, both the hedging interest rate swaps and hedged certificates of deposit were called. Net gains of $3.1 million were recognized on the interest rate swaps, while net losses of $1.6 million were recognized on hedged certificates of deposit for the year ended December 31, 2020. The Company did not have any fair value hedges during both 2022 and 2021. Cash Flow Hedges — The Company uses interest rate swaps to hedge the variability in interest payments received on certain floating-rate commercial loans, or paid on certain floating-rate borrowings due to changes in contractually specified interest rates. As of December 31, 2022, $3.25 billion and $200.0 million in notional amounts of interest rate contracts were designated as cash flow hedges to convert certain variable-rate loans and borrowings, respectively. Gains and losses on the hedging derivative instruments are recognized in AOCI and reclassified to earnings in the same period the hedged cash flows impact earnings and within the same income statement line as the hedged cash flows. Considering the interest rates, yield curve and notional amounts as of December 31, 2022, the Company expects to reclassify an estimated $41.0 million of after-tax net losses on derivative instruments designated as cash flow hedges from AOCI into earnings during the next 12 months. The following table presents the pre-tax changes in AOCI from cash flow hedges for the years ended December 31, 2022, 2021 and 2020. The after-tax impact of cash flow hedges on AOCI is shown in Note 15 — Accumulated Other Comprehensive Income (Loss) to the Consolidated Financial Statements in this Form-10-K. ($ in thousands) Year Ended December 31, 2022 2021 2020 (Losses) gains recognized in AOCI: Interest rate contracts $ (74,069) $ 1,210 $ (1,604) Realized (losses) gains reclassified from AOCI into earnings: Interest expense (for cash flow hedges on borrowings) $ 3,200 $ (868) $ 113 Interest and dividend income (for cash flow hedges on loans) (7,204) — — Total $ (4,004) $ (868) $ 113 Net Investment Hedges — The Company enters into foreign currency forward contracts to hedge a portion of the Bank’s investment in East West Bank (China) Limited, a non-USD functional currency subsidiary in China. The hedging instruments designated as net investment hedges were used to hedge against the risk of adverse changes in the foreign currency exchange rate of the RMB. The following table presents the pre-tax gains (losses) recognized in AOCI on net investment hedges for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Gains (losses) recognized in AOCI $ 4,509 $ (4,558) $ (6,700) Derivatives Not Designated as Hedging Instruments Customer-Related Positions and other Economic Hedge Derivatives — The Company enters into interest rate, commodity, and foreign exchange derivatives at the request of its customers and generally enters into offsetting derivative contracts with third-party financial institutions to mitigate the inherent market risk. Income primarily results from the spread between the customer derivative and the offsetting dealer position. Certain offsetting derivative contracts entered by the Company are cleared though the central clearing organizations where variation margin is applied daily as settlement to the fair values of the contracts. Applying variation margin payments as settlement to the fair values of derivative contracts cleared through London Clearing House (“LCH”) and Chicago Mercantile Exchange (“CME”) resulted in reductions in the derivative asset and liability fair values of $163.4 million and $12.1 million, respectively, as of December 31, 2022. In comparison, applying variation margin payments as settlement to LCH and CME-cleared derivative transactions resulted in reductions in the derivative asset and liability fair values of $20.4 million and $105.7 million, respectively, as of December 31, 2021. The Company also utilizes foreign exchange contracts to mitigate the effect of currency fluctuations on certain foreign currency-denominated on-balance sheet assets and liabilities. A majority of the foreign exchange contracts had original maturities of one year or less as of both December 31, 2022 and 2021. The following table presents the notional amounts and the gross fair values of the interest rate and foreign exchange derivatives issued for customer-related positions and other economic hedges as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 December 31, 2021 Notional Amount Fair Value Notional Amount Fair Value Assets Liabilities Assets Liabilities Customer-related positions: Interest rate contracts: Swaps $ 6,656,491 $ 1,438 $ 521,719 $ 7,460,836 $ 211,727 $ 39,650 Written options 1,548,158 — 30,904 1,118,074 — 2,148 Collars and corridors 215,773 — 8,924 194,181 1,272 642 Subtotal 8,420,422 1,438 561,547 8,773,091 212,999 42,440 Foreign exchange contracts: Forwards and spot 993,588 17,009 18,090 900,290 13,688 9,446 Swaps 623,143 6,629 12,178 66,474 1,034 17 Other 121,631 2,070 245 20,287 2 — Subtotal 1,738,362 25,708 30,513 987,051 14,724 9,463 Total $ 10,158,784 $ 27,146 $ 592,060 $ 9,760,142 $ 227,723 $ 51,903 Other economic hedges: Interest rate contracts: Swaps $ 6,683,828 $ 384,201 $ 2,047 $ 7,490,074 $ 24,418 $ 136,190 Purchased options 1,580,275 32,233 — 1,118,074 2,159 — Written options 32,117 — 1,235 — — — Collars and corridors 215,772 8,956 — 194,181 646 1,275 Subtotal 8,511,992 425,390 3,282 8,802,329 27,223 137,465 Foreign exchange contracts: Forwards and spot 77,998 3,050 87 267,689 1,564 2,695 Swaps 1,044,900 18,516 11,447 599,654 4,745 3,116 Other 121,631 245 2,070 20,287 — 2 Subtotal 1,244,529 21,811 13,604 887,630 6,309 5,813 Total $ 9,756,521 $ 447,201 $ 16,886 $ 9,689,959 $ 33,532 $ 143,278 The following table presents the notional amounts in units and the gross fair values of the commodity derivatives issued for customer-related positions and other economic hedges as of December 31, 2022 and 2021: ($ and unit in thousands) December 31, 2022 December 31, 2021 Notional Fair Value Notional Fair Value Assets Liabilities Assets Liabilities Customer-related positions: Commodity contracts: Crude oil: Swaps 2,465 Barrels $ 39,955 $ 6,178 4,682 Barrels $ 71,242 $ 60 Collars 3,011 Barrels 16,038 2,630 2,837 Barrels 33,826 106 Written options — Barrels 558 — — Barrels 87 — Subtotal 5,476 Barrels 56,551 8,808 7,519 Barrels 105,155 166 Natural gas: Swaps 92,590 MMBTUs 112,314 73,208 58,959 MMBTUs 49,188 3,775 Collars 32,072 MMBTUs 2,217 18,317 24,315 MMBTUs 10,903 458 Subtotal 124,662 MMBTUs 114,531 91,525 83,274 MMBTUs 60,091 4,233 Total $ 171,082 $ 100,333 $ 165,246 $ 4,399 Other economic hedges: Commodity contracts: Crude oil: Swaps 2,587 Barrels $ 6,935 $ 36,060 7,517 Barrels $ 27,524 $ 82,723 Collars 3,942 Barrels 1,378 12,856 2,888 Barrels — 33,399 Purchased options — Barrels — 516 — Barrels — 81 Subtotal 6,529 Barrels 8,313 49,432 10,405 Barrels 27,524 116,203 Natural gas: Swaps 91,900 MMBTUs 69,767 106,883 109,567 MMBTUs 28,803 63,029 Collars 31,142 MMBTUs 12,451 1,960 25,929 MMBTUs 1,136 10,936 Subtotal 123,042 MMBTUs 82,218 108,843 135,496 MMBTUs 29,939 73,965 Total $ 90,531 $ 158,275 $ 57,463 $ 190,168 Credit Contracts — The Company periodically enters into credit RPAs with institutional counterparties to manage the credit exposure of the interest rate contracts associated with syndication loans. Under the RPAs, a portion of the credit exposure is transferred from one party (the purchaser of credit protection) to another party (the seller of credit protection). The seller of credit protection is required to make payments to the purchaser of credit protection if the underlying borrower defaults on the related interest rate contract. The Company may enter into protection sold or protection purchased RPAs. Credit risk on RPAs is managed by monitoring the credit worthiness of the borrowers and the institutional counterparties, which is a part of the normal credit review and monitoring process. The majority of the reference entities of the protection sold RPAs were investment grade and the weighted-average remaining maturity was 2.4 years and 3.2 years, respectively, as of December 31, 2022 and 2021. Assuming that the underlying borrowers referenced in the interest rate contracts defaulted as of December 31, 2022 and 2021, the maximum exposure of protection sold RPAs would be zero and $3.2 million, respectively. The Company did not have any outstanding protection purchased RPAs as of both December 31, 2022 and 2021. Equity Contracts — From time to time, as part of the Company’s loan origination process, the Company obtains warrants to purchase preferred and/or common stock of technology and life sciences companies to which it provides loans. Warrants grant the Company the right to buy a certain class of the underlying company’s equity at a certain price before expiration. The following table presents the net gains (losses) recognized on the Company’s Consolidated Statement of Income related to derivatives not designated as hedging instruments for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Classification on Year Ended December 31, 2022 2021 2020 Derivatives not designated as hedging instruments: Interest rate contracts Interest rate contracts and other derivative income $ 13,905 $ 11,493 $ (8,637) Foreign exchange contracts Foreign exchange income 13,799 45,921 23,215 Credit contracts Interest rate contracts and other derivative income 118 139 (5) Equity contracts Lending fees 151 382 11,025 Commodity contracts Interest rate contracts and other derivative income 48 (58) (35) Net gains $ 28,021 $ 57,877 $ 25,563 Credit-Risk-Related Contingent Features — Certain of the Company’s over-the-counter derivative contracts contain early termination provisions that require the Company to settle any outstanding balances upon the occurrence of a specified credit-risk-related event. Such event primarily relates to a downgrade in the credit rating of East West Bank to below investment grade. As of December 31, 2022, the aggregate fair value amounts of all derivative instruments with credit risk-related contingent features that were in a net liability position totaled $2.6 million, in which $1.1 million of collateral was posted to cover these positions. In comparison, as of December 31, 2021, the aggregate fair value amounts of all derivative instruments with credit risk-related contingent features that were in a net liability position totaled $66.8 million, in which $66.6 million of collateral was posted to cover these positions. In the event that the credit rating of East West Bank had been downgraded to below investment grade, minimal additional collateral would have been required to be posted as of December 31, 2022 and 2021. Offsetting of Derivatives The following tables present the gross derivative fair values, the balance sheet netting adjustments and the resulting net fair values recorded on the Consolidated Balance Sheet, as well as the cash and noncash collateral associated with master netting arrangements. The gross amounts of derivative assets and liabilities are presented after the application of variation margin payments as settlements to the fair values of contracts cleared through central clearing organizations, where applicable. The collateral amounts in the following tables are limited to the outstanding balances of the related asset or liability. Therefore, instances of overcollateralization are not shown: ($ in thousands) As of December 31, 2022 Gross (1) Gross Amounts Offset on the Net Amounts Gross Amounts Not Offset on the Net Master Netting Arrangements Cash Collateral Received (3) Security Collateral Received (5) Derivative assets $ 755,328 $ (242,745) $ (372,038) $ 140,545 $ (60,567) $ 79,978 Gross (2) Gross Amounts Offset on the Net Amounts Gross Amounts Not Offset on the Net Master Netting Arrangements Cash Collateral Pledged (4) Security Collateral Pledged (5) Derivative liabilities $ 887,264 $ (242,745) $ — $ 644,519 $ (38,438) $ 606,081 ($ in thousands) As of December 31, 2021 Gross (1) Gross Amounts Offset on the Net Amounts Gross Amounts Not Offset on the Net Master Netting Arrangements Cash Collateral Received (3) Security Collateral (5) Derivative assets $ 484,184 $ (58,679) $ (42,274) $ 383,231 $ — $ 383,231 Gross (2) Gross Amounts Offset on the Net Amounts Gross Amounts Not Offset on the Net Master Netting Arrangements Cash Collateral Pledged (4) Security Collateral Pledged (5) Derivative liabilities $ 390,171 $ (58,679) $ (174,048) $ 157,444 $ (106,598) $ 50,846 (1) Includes $2.1 million and $587 thousand of gross fair value assets with counterparties that were not subject to enforceable master netting arrangements or similar agreements as of December 31, 2022 and 2021, respectively. (2) Includes $566 thousand and $666 thousand of gross fair value liabilities with counterparties that were not subject to enforceable master netting arrangements or similar agreements as of December 31, 2022 and 2021, respectively. (3) Gross cash collateral received under master netting arrangements or similar agreements were $384.9 million and $47.0 million as of December 31, 2022 and 2021, respectively. Of the gross cash collateral received, $372.0 million and $42.3 million were used to offset against derivative assets as of December 31, 2022 and 2021, respectively. (4) Gross cash collateral pledged under master netting arrangements or similar agreements were $490 thousand and $176.5 million as of December 31, 2022 and 2021, respectively. Of the gross cash collateral pledged, none and $174.0 million were used to offset against derivative liabilities as of December 31, 2022 and 2021, respectively. (5) Represents the fair value of security collateral received or pledged limited to derivative assets or liabilities that are subject to enforceable master netting arrangements or similar agreements. U.S. GAAP does not permit the netting of noncash collateral on the Consolidated Balance Sheet but requires disclosure of such amounts. In addition to the amounts included in the tables above, the Company has balance sheet netting related to the resale and repurchase agreements. Refer to Note 3 — Assets Purchased under Resale Agreements and Sold under Repurchase Agreements to the Consolidated Financial Statements for additional information. Refer to Note 2 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K for fair value measurement disclosures on derivatives.

Loans Receivable and Allowance

Loans Receivable and Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Abstract]
Loans Receivable and Allowance for Credit Losses	Loans Receivable and Allowance for Credit Losses The following table presents the composition of the Company’s loans held-for-investment outstanding as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 December 31, 2021 Commercial: C&I (1) $ 15,711,095 $ 14,150,608 CRE: CRE 13,857,870 12,155,047 Multifamily residential 4,573,068 3,675,605 Construction and land 638,420 346,486 Total CRE 19,069,358 16,177,138 Total commercial 34,780,453 30,327,746 Consumer: Residential mortgage: Single-family residential 11,223,027 9,093,702 HELOCs 2,122,655 2,144,821 Total residential mortgage 13,345,682 11,238,523 Other consumer 76,295 127,512 Total consumer 13,421,977 11,366,035 Total loans held-for-investment (2) $ 48,202,430 $ 41,693,781 Allowance for loan losses (595,645) (541,579) Loans held-for-investment, net (2) $ 47,606,785 $ 41,152,202 (1) Includes Paycheck Protection Program loans of $99.0 million and $534.2 million as of December 31, 2022 and 2021, respectively. (2) Includes $(70.4) million and $(50.7) million net deferred loan fees and net unamortized premiums as of December 31, 2022 and 2021, respectively. L oans held-for-investment accrued interest receivable was $208.4 million and $107.4 million as of December 31, 2022 and 2021, respectively, and was included in Other assets on the Consolidated Balance Sheet. The interest income reversed was insignificant for the years ended December 31, 2022, 2021 and 2020. For the Company’s accounting policy on accrued interest receivable related to loans held-for-investment, see Note 1 — Summary of Significant Accounting Policies — Loans Held-for-Investment to the Consolidated Financial Statements in this Form 10-K. The Company’s FRBSF and FHLB borrowings are primarily secured by loans held-for-investment. Loans held-for-investment totaling $28.30 billion and $27.67 billion, respectively, were pledged to secure borrowings and provide additional borrowing capacity as of December 31, 2022 and 2021. Credit Quality Indicators All loans are subject to the Company’s credit review and monitoring process. For the commercial loan portfolio, loans are risk rated based on an analysis of the borrower’s current payment performance or delinquency, repayment sources, financial and liquidity factors, including industry and geographic considerations. For the consumer loan portfolio, payment performance or delinquency is typically the driving indicator for risk ratings. The Company utilizes internal credit risk ratings to assign each individual loan a risk rating of 1 through 10: • Pass — loans risk rated 1 through 5 are assigned an internal risk rating category of “Pass.” Loans risk rated 1 are typically loans fully secured by cash. Pass loans have sufficient sources of repayment to repay the loan in full, in accordance with all terms and conditions. • Special mention — loans assigned a risk rating of 6 have potential weaknesses that warrant closer attention by management; these are assigned an internal risk rating category of “Special Mention.” • Substandard — loans assigned a risk rating of 7 or 8 have well-defined weaknesses that may jeopardize the full and timely repayment of the loan; these are assigned an internal risk rating category of “Substandard.” • Doubtful — loans assigned a risk rating of 9 have insufficient sources of repayment and a high probability of loss; these are assigned an internal risk rating category of “Doubtful.” • Loss — loans assigned a risk rating of 10 are uncollectible and of such little value that they are no longer considered bankable assets; these are assigned an internal risk rating category of “Loss.” Loan exposures categorized as criticized consist of special mention, substandard, doubtful and loss categories. The Company reviews the internal risk ratings of its loan portfolio on a regular basis, and adjusts the ratings based on changes in the borrowers’ financial status and the collectability of the loans. The following tables summarize the Company’s loans held-for-investment by loan portfolio segments, internal risk ratings and vintage year as of December 31, 2022 and 2021. The vintage year is the year of origination, renewal or major modification. Revolving loans that are converted to term loans presented in the tables below are excluded from term loans by vintage year columns. December 31, 2022 Term Loans by Origination Year Revolving Loans Revolving Loans Converted to Term Loans (1) Total ($ in thousands) 2022 2021 2020 2019 2018 Prior Commercial: C&I: Pass $ 2,831,834 $ 2,053,215 $ 623,026 $ 392,013 $ 143,970 $ 97,605 $ 9,177,401 $ 20,548 $ 15,339,612 Criticized (accrual) 72,210 34,296 48,761 34,221 20,646 12,933 97,988 — 321,055 Criticized (nonaccrual) 18,722 4,797 10,733 243 5,618 10,315 — — 50,428 Total C&I 2,922,766 2,092,308 682,520 426,477 170,234 120,853 9,275,389 20,548 15,711,095 CRE: Pass 4,178,780 2,404,634 1,505,150 1,771,679 1,471,710 1,909,925 165,653 22,009 13,429,540 Criticized (accrual) 3,518 60,573 159,424 40,095 91,132 32,173 1,455 16,716 405,086 Criticized (nonaccrual) — 19,044 — — — 4,200 — — 23,244 Subtotal CRE 4,182,298 2,484,251 1,664,574 1,811,774 1,562,842 1,946,298 167,108 38,725 13,857,870 Multifamily residential: Pass 1,500,289 892,598 641,677 519,614 350,044 625,293 11,325 — 4,540,840 Criticized (accrual) — — — 707 4,276 27,076 — — 32,059 Criticized (nonaccrual) — — — — — 169 — — 169 Subtotal multifamily residential 1,500,289 892,598 641,677 520,321 354,320 652,538 11,325 — 4,573,068 Construction and land: Pass 288,394 276,839 31,804 3,104 2,805 231 9,073 — 612,250 Criticized (accrual) 4,504 — — — 21,666 — — — 26,170 Criticized (nonaccrual) — — — — — — — — — Subtotal construction and land 292,898 276,839 31,804 3,104 24,471 231 9,073 — 638,420 Total CRE 5,975,485 3,653,688 2,338,055 2,335,199 1,941,633 2,599,067 187,506 38,725 19,069,358 Total commercial 8,898,251 5,745,996 3,020,575 2,761,676 2,111,867 2,719,920 9,462,895 59,273 34,780,453 Consumer: Single-family residential: Pass (2) 3,548,894 2,453,717 1,775,696 1,101,965 817,164 1,500,359 — — 11,197,795 Criticized (accrual) — 1,275 785 1,463 4,352 3,935 — — 11,810 Criticized (Nonaccrual) (2) 141 — 204 3,202 1,721 8,154 — — 13,422 Subtotal single-family residential mortgage 3,549,035 2,454,992 1,776,685 1,106,630 823,237 1,512,448 — — 11,223,027 HELOCs: Pass 520 3,583 7,336 3,203 525 8,960 1,958,692 127,401 2,110,220 Criticized (accrual) — 6 — — — — 4 1,079 1,089 Criticized (nonaccrual) — — 483 231 1,017 4,844 1,001 3,770 11,346 Subtotal HELOCs 520 3,589 7,819 3,434 1,542 13,804 1,959,697 132,250 2,122,655 Total residential mortgage 3,549,555 2,458,581 1,784,504 1,110,064 824,779 1,526,252 1,959,697 132,250 13,345,682 Other consumer: Pass 17,088 137 5,356 — — 15,808 37,804 — 76,193 Criticized (accrual) 3 — — — — — — — 3 Criticized (nonaccrual) — — — — — — 99 — 99 Total other consumer 17,091 137 5,356 — — 15,808 37,903 — 76,295 Total consumer 3,566,646 2,458,718 1,789,860 1,110,064 824,779 1,542,060 1,997,600 132,250 13,421,977 Total by risk rating: Pass 12,365,799 8,084,723 4,590,045 3,791,578 2,786,218 4,158,181 11,359,948 169,958 47,306,450 Criticized (accrual) 80,235 96,150 208,970 76,486 142,072 76,117 99,447 17,795 797,272 Criticized (nonaccrual) 18,863 23,841 11,420 3,676 8,356 27,682 1,100 3,770 98,708 Total $ 12,464,897 $ 8,204,714 $ 4,810,435 $ 3,871,740 $ 2,936,646 $ 4,261,980 $ 11,460,495 $ 191,523 $ 48,202,430 December 31, 2021 Term Loans by Origination Year Revolving Loans Revolving Loans Converted to Term Loans (1) Total ($ in thousands) 2021 2020 2019 2018 2017 Prior Commercial: C&I: Pass $ 3,911,722 $ 1,133,085 $ 629,007 $ 187,195 $ 132,392 $ 225,326 $ 7,383,485 $ 28,842 $ 13,631,054 Criticized (accrual) 85,036 117,357 72,277 51,553 15,136 4,005 115,167 — 460,531 Criticized (nonaccrual) 29,456 2,792 513 517 9,301 16,444 — — 59,023 Total C&I 4,026,214 1,253,234 701,797 239,265 156,829 245,775 7,498,652 28,842 14,150,608 CRE: Pass 2,792,193 2,090,503 2,230,520 1,863,481 1,120,682 1,727,862 128,668 6,389 11,960,298 Criticized (accrual) 71,055 3,200 9,176 21,077 24,851 55,892 — — 185,251 Criticized (nonaccrual) 4,350 — — — 4,752 396 — — 9,498 Subtotal CRE 2,867,598 2,093,703 2,239,696 1,884,558 1,150,285 1,784,150 128,668 6,389 12,155,047 Multifamily residential: Pass 1,026,295 726,772 688,453 419,319 308,087 424,947 20,524 — 3,614,397 Criticized (accrual) — — 721 22,344 7,033 30,666 — — 60,764 Criticized (nonaccrual) — — — — — 444 — — 444 Subtotal multifamily residential 1,026,295 726,772 689,174 441,663 315,120 456,057 20,524 — 3,675,605 Construction and land: Pass 122,983 103,743 90,544 3,412 — 391 — — 321,073 Criticized (accrual) 3,355 — — 22,058 — — — — 25,413 Criticized (nonaccrual) — — — — — — — — — Subtotal construction and land 126,338 103,743 90,544 25,470 — 391 — — 346,486 Total CRE 4,020,231 2,924,218 3,019,414 2,351,691 1,465,405 2,240,598 149,192 6,389 16,177,138 Total commercial 8,046,445 4,177,452 3,721,211 2,590,956 1,622,234 2,486,373 7,647,844 35,231 30,327,746 Consumer: Single-family residential: Pass (2) 2,616,958 2,108,370 1,375,929 1,079,030 763,351 1,127,516 — — 9,071,154 Criticized (accrual) — — 458 2,813 1,899 3,212 — — 8,382 Criticized (nonaccrual) (2) — — 1,751 3,889 4,295 4,231 — — 14,166 Subtotal single-family residential mortgage 2,616,958 2,108,370 1,378,138 1,085,732 769,545 1,134,959 — — 9,093,702 HELOCs: Pass 648 3,277 4,644 1,347 3,268 11,215 1,913,478 197,414 2,135,291 Criticized (accrual) — — — — — 371 7 708 1,086 Criticized (nonaccrual) — — 52 188 3,543 973 — 3,688 8,444 Subtotal HELOCs 648 3,277 4,696 1,535 6,811 12,559 1,913,485 201,810 2,144,821 Total residential mortgage 2,617,606 2,111,647 1,382,834 1,087,267 776,356 1,147,518 1,913,485 201,810 11,238,523 Other consumer: Pass 16,831 5,258 — — 1,741 52,147 51,481 — 127,458 Criticized (accrual) 2 — — — — — — — 2 Criticized (nonaccrual) — — — — — — 52 — 52 Total other consumer 16,833 5,258 — — 1,741 52,147 51,533 — 127,512 Total consumer 2,634,439 2,116,905 1,382,834 1,087,267 778,097 1,199,665 1,965,018 201,810 11,366,035 Total by risk rating: Pass 10,487,630 6,171,008 5,019,097 3,553,784 2,329,521 3,569,404 9,497,636 232,645 40,860,725 Criticized (accrual) 159,448 120,557 82,632 119,845 48,919 94,146 115,174 708 741,429 Criticized (nonaccrual) 33,806 2,792 2,316 4,594 21,891 22,488 52 3,688 91,627 Total $ 10,680,884 $ 6,294,357 $ 5,104,045 $ 3,678,223 $ 2,400,331 $ 3,686,038 $ 9,612,862 $ 237,041 $ 41,693,781 (1) $26.2 million, $6.5 million and $23.9 million of total commercial loans, primarily comprised of CRE and C&I revolving loans, were converted to term loans during the years ended December 31, 2022, 2021 and 2020, respectively. For the year ended December 31, 2022, no consumer loans were converted to term loans. $54.1 million and $145.0 million of total consumer loans, comprised of HELOCs, were converted to term loans during the years ended December 31, 2021 and 2020, respectively. (2) As of December 31, 2022 and 2021, $818 thousand and $1.6 million, respectively, of nonaccrual loans whose payments are guaranteed by the Federal Housing Administration were classified with a “Pass” rating. Nonaccrual and Past Due Loans Loans that are 90 or more days past due are generally placed on nonaccrual status, unless the loan is well-collateralized and in the process of collection. Loans that are less than 90 days past due but have identified deficiencies, such as when the full collection of principal or interest becomes uncertain, are also placed on nonaccrual status. The following tables present the aging analysis of total loans held-for-investment as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Current Accruing Accruing Total Total Total Commercial: C&I $ 15,651,312 $ 6,482 $ 2,873 $ 9,355 $ 50,428 $ 15,711,095 CRE: CRE 13,820,441 14,185 — 14,185 23,244 13,857,870 Multifamily residential 4,571,899 678 322 1,000 169 4,573,068 Construction and land 638,420 — — — — 638,420 Total CRE 19,030,760 14,863 322 15,185 23,413 19,069,358 Total commercial 34,682,072 21,345 3,195 24,540 73,841 34,780,453 Consumer: Residential mortgage: Single-family residential 11,183,134 13,523 12,130 25,653 14,240 11,223,027 HELOCs 2,102,523 7,700 1,086 8,786 11,346 2,122,655 Total residential mortgage 13,285,657 21,223 13,216 34,439 25,586 13,345,682 Other consumer 73,004 109 3,083 3,192 99 76,295 Total consumer 13,358,661 21,332 16,299 37,631 25,685 13,421,977 Total $ 48,040,733 $ 42,677 $ 19,494 $ 62,171 $ 99,526 $ 48,202,430 ($ in thousands) December 31, 2021 Current Accruing Accruing Total Total Total Commercial: C&I $ 14,080,516 $ 6,983 $ 4,086 $ 11,069 $ 59,023 $ 14,150,608 CRE: CRE 12,141,827 3,722 — 3,722 9,498 12,155,047 Multifamily residential 3,669,819 5,320 22 5,342 444 3,675,605 Construction and land 346,486 — — — — 346,486 Total CRE 16,158,132 9,042 22 9,064 9,942 16,177,138 Total commercial 30,238,648 16,025 4,108 20,133 68,965 30,327,746 Consumer: Residential mortgage: Single-family residential 9,059,222 10,191 8,569 18,760 15,720 9,093,702 HELOCs 2,130,523 4,776 1,078 5,854 8,444 2,144,821 Total residential mortgage 11,189,745 14,967 9,647 24,614 24,164 11,238,523 Other consumer 127,352 99 9 108 52 127,512 Total consumer 11,317,097 15,066 9,656 24,722 24,216 11,366,035 Total $ 41,555,745 $ 31,091 $ 13,764 $ 44,855 $ 93,181 $ 41,693,781 The following table presents the amortized cost of loans on nonaccrual status for which there was no related allowance for loan losses as of both December 31, 2022 and 2021. Nonaccrual loans may not have an allowance for credit losses if the loan balances are well secured by the collateral value and there is no loss expectation. ($ in thousands) December 31, 2022 December 31, 2021 Commercial: C&I $ 11,398 $ 22,967 CRE 22,944 9,102 Total commercial 34,342 32,069 Consumer: Single-family residential 2,998 5,785 HELOCs 7,245 5,033 Total consumer 10,243 10,818 Total nonaccrual loans with no related allowance for loan losses $ 44,585 $ 42,887 Foreclosed Assets The Company acquires assets from borrowers through loan restructurings, workouts, and foreclosures. Assets acquired may include real properties (e.g., residential real estate, land, and buildings) and commercial and personal properties. The Company recognizes foreclosed assets upon receiving assets in satisfaction of a loan (e.g., taking legal title or physical possession). Foreclosed assets, consisting of OREO and other nonperforming assets, are included in Other assets on the Consolidated Balance Sheet. The Company had $270 thousand in foreclosed assets as of December 31, 2022, compared with $10.3 million as of December 31, 2021. The Company commences the foreclosure process on consumer mortgage loans after a borrower becomes more than 120 days delinquent in accordance with the Consumer Financial Protection Bureau guidelines. The carrying value of consumer real estate loans that were in an active or suspended foreclosure process was $7.5 million and $7.3 million as of December 31, 2022 and 2021, respectively. Troubled Debt Restructurings TDRs are individually evaluated, and the type of restructuring is selected based on the loan type and the circumstances of the borrower’s financial difficulties. A TDR is a modification of the terms of a loan when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that it would not have otherwise considered. The COVID-related modifications that occurred between March 1, 2020 and January 1, 2022, were generally not classified as TDRs due to the relief under the Coronavirus Aid, Relief, and Economic Security Act, as amended by the Consolidated Appropriations Act, 2021 and the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Revised), and therefore are not included in the discussion below. See Note 1 — Summary of Significant Accounting Policies — Troubled Debt Restructurings to the Consolidated Financial Statements in this Form 10-K for additional information on TDR relief. The following tables present the additions to TDRs for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Loans Modified as TDRs During the Year Ended December 31, 2022 Number Pre-Modification Post-Modification (1) Financial (2) Commercial: C&I 7 $ 69,050 $ 38,415 $ 12,638 Total commercial 7 69,050 38,415 12,638 Consumer: Residential mortgage: HELOCs 2 662 697 2 Total residential mortgage 2 662 697 2 Total consumer 2 662 697 2 Total 9 $ 69,712 $ 39,112 $ 12,640 ($ in thousands) Loans Modified as TDRs During the Year Ended December 31, 2021 Number Pre-Modification Post-Modification (1) Financial (2) Commercial: C&I 5 $ 24,155 $ 20,263 $ 1,108 CRE: Multifamily residential 1 1,101 1,066 — Total CRE 1 1,101 1,066 — Total commercial 6 25,256 21,329 1,108 Total 6 $ 25,256 $ 21,329 $ 1,108 ($ in thousands) Loans Modified as TDRs During the Year Ended December 31, 2020 Number Pre-Modification Post-Modification (1) Financial (2) Commercial: C&I 14 $ 152,249 $ 134,467 $ 19,555 CRE: CRE 2 21,429 21,221 18 Multifamily residential 1 1,220 1,226 — Total CRE 3 22,649 22,447 18 Total commercial 17 174,898 156,914 19,573 Total 17 $ 174,898 $ 156,914 $ 19,573 (1) Includes subsequent payments after modification and reflects the balance as of December 31, 2022, 2021 and 2020. (2) Includes charge-offs and specific reserves recorded since the modification date. Loans modified more than once are reported in the period they were first modified. The following tables present the TDR post-modification outstanding balances by the primary modification type for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Modification Type During the Year Ended December 31, 2022 Principal (1) Principal and Interest (2) Interest Interest Other (3) Total Commercial: C&I $ 24,238 $ — $ — $ — $ 14,177 $ 38,415 Total commercial 24,238 — — — 14,177 38,415 Consumer: Residential mortgage: HELOCs 697 — — — — 697 Total residential mortgage 697 — — — — 697 Total consumer 697 — — — — 697 Total $ 24,935 $ — $ — $ — $ 14,177 $ 39,112 ($ in thousands) Modification Type During the Year Ended December 31, 2021 Principal (1) Principal and Interest (2) Interest Interest Other (3) Total Commercial: C&I $ 4,679 $ — $ 15,584 $ — $ — $ 20,263 CRE: Multifamily residential 1,066 — — — — 1,066 Total CRE 1,066 — — — — 1,066 Total commercial 5,745 — 15,584 — — 21,329 Total $ 5,745 $ — $ 15,584 $ — $ — $ 21,329 ($ in thousands) Modification Type During the Year Ended December 31, 2020 Principal (1) Principal (2) Interest Interest Other (3) Total Commercial: C&I $ 59,134 $ 10,863 $ 31,913 $ 32,557 $ — $ 134,467 CRE: CRE 21,221 — — — — 21,221 Multifamily residential 1,226 — — — — 1,226 Total CRE 22,447 — — — — 22,447 Total commercial 81,581 10,863 31,913 32,557 — 156,914 Total $ 81,581 $ 10,863 $ 31,913 $ 32,557 $ — $ 156,914 (1) Includes forbearance payments, term extensions and principal deferments that modify the terms of the loan from principal and interest payments to interest payments only. (2) Includes principal and interest deferments or reductions. (3) Includes primarily funding to secure additional collateral and provide liquidity to collateral-dependent and term extension to C&I loans. After a loan is modified as a TDR, the Company continues to monitor its performance under its most recent restructured terms. A TDR may become delinquent and result in payment default (generally 90 days past due) subsequent to restructuring. The following table presents information on loans that entered into default during the years ended December 31, 2022, 2021 and 2020 that were modified as TDRs during the 12 months preceding payment default: ($ in thousands) Loans Modified as TDRs that Subsequently Defaulted 2022 2021 2020 Number of Recorded Number of Recorded Number of Recorded Commercial: C&I 2 $ 10,296 1 $ 11,431 1 $ 15,852 Total commercial 2 10,296 1 11,431 1 15,852 Total 2 $ 10,296 1 $ 11,431 1 $ 15,852 As of December 31, 2022 and 2021, the remaining commitments to lend to borrowers whose terms of their outstanding owed balances were modified as TDRs were $16.2 million and $5.0 million, respectively. Allowance for Credit Losses The Company has a current expected credit losses (“CECL”) framework for all financial assets measured at amortized cost and certain off-balance sheet credit exposures. The Company’s allowance for credit losses, which includes both the allowance for loan losses and the allowance for unfunded credit commitments, is calculated with the objective of maintaining a reserve sufficient to absorb losses inherent in our credit portfolios. The measurement of the allowance for credit losses is based on management’s best estimate of lifetime expected credit losses, and periodic evaluation of the loan portfolio, lending-related commitments and other relevant factors. The allowance for credit losses is deducted from the amortized cost basis of a financial asset or a group of financial assets so that the balance sheet reflects the net amount the Company expects to collect. Amortized cost is the principal balance outstanding, net of purchase premiums and discounts, deferred fees and costs, and escrow advances. Subsequent changes in expected credit losses are recognized in net income as a provision for, or a reversal of, credit loss expense. The allowance for credit losses estimation involves procedures to consider the unique risk characteristics of the portfolio segments. The majority of the Company’s credit exposures that share risk characteristics with other similar exposures are collectively evaluated. The collectively evaluated loans include performing loans and unfunded credit commitments. If an exposure does not share risk characteristics with other exposures, the Company generally estimates expected credit losses on an individual basis. Allowance for Collectively Evaluated Loans The allowance for collectively evaluated loans consists of a quantitative component that assesses the different risk factors considered in our models and a qualitative component that considers risk factors external to the models. Each of these components are described below. Quantitative Component — The Company applies quantitative methods to estimate loan losses by considering a variety of factors such as historical loss experience, the current credit quality of the portfolio, and an economic outlook over the life of the loan. The Company incorporates forward-looking information using macroeconomic scenarios which include variables that are considered key drivers of increases and decreases in credit losses. The Company utilizes a probability-weighted, multiple-scenario forecast approach. These scenarios may consist of a base forecast representing management's view of the most likely outcome, combined with downside or upside scenarios reflecting possible worsening or improving economic conditions. The quantitative models incorporate a probability-weighted calculation of these macroeconomic scenarios over a reasonable and supportable forecast period. If the life of loans extends beyond the reasonable and supportable forecast period, the Company will consider historical experience or long-run macroeconomic trends over the remaining lives of the loans to estimate the allowance for loan losses. There were no changes to the overall model methodology in 2022 and 2021 and no changes to the reasonable and supportable forecast period, and reversion to the historical loss experience method in 2022. In 2021, the reasonable and supportable forecast period, key credit risk characteristics and macroeconomic variables to estimate the expected credit losses of the C&I segment were modified due to model enhancement. The following table provides key credit risk characteristics and macroeconomic variables that the Company uses to estimate the expected credit losses by portfolio segment: Portfolio Segment Risk Characteristics Macroeconomic Variables C&I Age (1) , size and spread at origination, and risk rating Volatility Index (“VIX”) and BBB yield to 10-year U.S. Treasury spread (“BBB spread”) (1) CRE, Multifamily residential, and Construction and land Delinquency status, maturity date, collateral value, property type, and geographic location Unemployment rate, Gross Domestic Product (“GDP”), and U.S. Treasury rates Single-family residential and HELOCs FICO score, delinquency status, maturity date, collateral value, and geographic location Unemployment rate, GDP, and home price index Other consumer Historical loss experience Immaterial (2) (1) Due to the model enhancements during the third quarter of 2021, the risk characteristic related to “time-to-maturity” was changed to “age”; while macroeconomic variables related to “unemployment rate and two- and ten-year U.S. Treasury spread” were changed to “VIX and BBB spread” . (2) Macroeconomic variables are included in the qualitative estimate. Allowance for Loan Losses for the Commercial Loan Portfolio The Company’s C&I lifetime loss rate model estimates the loss rate expected over the life of a loan. This loss rate is applied to the amortized cost basis, excluding accrued interest receivable, to determine expected credit losses. The lifetime loss rate model’s reasonable and supportable period spans 11 quarters, thereafter immediately reverting to the historical average loss rate, expressed through the loan-level lifetime loss rate. To generate estimates of expected loss at the loan level for CRE, multifamily residential, and construction and land loans, projected probabilities of default (“PDs”) and loss given defaults (“LGDs”) are applied to the estimated exposure at default, considering the term and payment structure of the loan. The forecast of future economic conditions returns to long-run historical economic trends within the reasonable and supportable period. In order to estimate the life of a loan under both models, the contractual term of the loan is adjusted for estimated prepayments based on historical prepayment experience. Allowance for Loan Losses for the Consumer Loan Portfolio For single-family residential and HELOC loans, projected PDs and LGDs are applied to the estimated exposure at default, considering the term and payment structure of the loan, to generate estimates of expected loss at the loan level. The forecast of future economic conditions returns to long-run historical economic trends after the reasonable and supportable period. To estimate the life of a loan for the single-family residential and HELOC portfolios, the contractual term of the loan is adjusted for estimated prepayments based on historical prepayment experience. For other consumer loans, the Company uses a loss rate approach. Qualitative Component — The Company also considers the following qualitative factors in the determination of the collectively evaluated allowance if these factors have not already been captured by the quantitative model. Such qualitative factors may include, but are not limited to: – loan growth trends; – the volume and severity of past due financial assets, and the volume and severity of adversely classified financial assets; – the Company’s lending policies and procedures, including changes in lending strategies, underwriting standards, collection, write-off and recovery practices; – knowledge of a borrower’s operations; – the quality of the Company’s credit review system; – the experience, ability and depth of the Company’s management and associates; – the effect of other external factors such as the regulatory and legal environments, or changes in technology; – actual and expected changes in international, national, regional, and local economic and business conditions in which the Company operates; and – risk factors in certain industry sectors not captured by the quantitative models. The magnitude of the impact of these factors on the Company’s qualitative assessment of the allowance for credit losses changes from period to period according to changes made by management in its assessment of these factors. The extent to which these factors change may be dependent on whether they are already reflected in quantitative loss estimates during the current period and the extent to which changes in these factors diverge from period to period. While the Company’s allowance methodologies strive to reflect all relevant credit risk factors, there continues to be uncertainty associated with, but not limited to, potential imprecision in the estimation process due to the inherent time lag of obtaining information and normal variations between expected and actual outcomes. The Company may hold additional qualitative reserves that are designed to provide coverage for losses attributable to such risk. Allowance for Individually Evaluated Loans When a loan no longer shares similar risk characteristics with other loans, such as in the case of certain nonaccrual or TDR loans, the Company estimates the allowance for loan losses on an individual loan basis. The allowance for loan losses for individually evaluated loans is measured as the difference between the recorded value of the loans and their fair value. For loans evaluated individually, the Company uses one of three different asset valuation measurement methods: (1) the fair value of collateral less costs to sell; (2) the present value of expected future cash flows; and (3) the loan's observable market price. If an individually evaluated loan is determined to be collateral dependent, the Company applies the fair value of the collateral less costs to sell method. If an individually evaluated loan is determined not to be collateral dependent, the Company uses the present value of future cash flows or the observable market value of the loan. • Collateral-Dependent Loans — The allowance of a collateral-dependent loan is limited to the difference between the recorded value and fair value of the collateral less cost of disposal or sale. As of December 31, 2022, collateral-dependent commercial and consumer loans totaled $47.4 million and $13.4 million, respectively. In comparison, collateral-dependent commercial and consumer loans totaled $37.0 million and $14.0 million, respectively, as of December 31, 2021. The Company's collateral-dependent loans were secured by real estate. As of both December 31, 2022 and 2021, the collateral value of the properties securing the collateral-dependent loans, net of selling costs, exceeded the recorded value of the loans. The following tables summarize the activity in the allowance for loan losses by portfolio segments for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 Commercial Consumer Total C&I CRE Residential Mortgage Other CRE Multifamily Construction Single- HELOCs Allowance for loan losses, beginning of period $ 338,252 $ 150,940 $ 14,400 $ 15,468 $ 17,160 $ 3,435 $ 1,924 $ 541,579 Provision for (reversal of) credit losses on loans (a) 37,604 8,212 15,651 (6,433) 18,867 1,124 (258) 74,767 Gross charge-offs (18,738) (10,871) (7,237) — (775) (193) (106) (37,920) Gross recoveries 16,824 1,583 559 74 312 109 — 19,461 Total net (charge-offs) recoveries (1,914) (9,288) (6,678) 74 (463) (84) (106) (18,459) Foreign currency translation adjustment (2,242) — — — — — — (2,242) Allowance for loan losses, end of period $ 371,700 $ 149,864 $ 23,373 $ 9,109 $ 35,564 $ 4,475 $ 1,560 $ 595,645 ($ in thousands) Year Ended December 31, 2021 Commercial Consumer Total C&I CRE Residential Mortgage Other CRE Multifamily Construction Single- HELOCs Allowance for loan losses, beginning of period $ 398,040 $ 163,791 $ 27,573 $ 10,239 $ 15,520 $ 2,690 $ 2,130 $ 619,983 (Reversal of) provision for credit losses on loans (a) (39,732) 14,282 (15,076) 7,576 1,965 745 1,286 (28,954) Gross charge-offs (32,490) (28,430) (130) (2,954) (1,046) (45) (1,497) (66,592) Gross recoveries 11,906 1,297 2,033 607 721 45 5 16,614 Total net (charge-offs) recoveries (20,584) (27,133) 1,903 (2,347) (325) — (1,492) (49,978) Foreign currency translation adjustment 528 — — — — — — 528 Allowance for loan losses, end of period $ 338,252 $ 150,940 $ 14,400 $ 15,468 $ 17,160 $ 3,435 $ 1,924 $ 541,579 ($ in thousands) Year Ended December 31, 2020 Commercial Consumer Total C&I CRE Residential Mortgage Other CRE Multifamily Construction Single- HELOCs Allowance for loan losses, beginning of period $ 238,376 $ 40,509 $ 22,826 $ 19,404 $ 28,527 $ 5,265 $ 3,380 $ 358,287 Impact of ASU 2016-13 adoption 74,237 72,169 (8,112) (9,889) (3,670) (1,798) 2,221 125,158 Provision for (reversal of) credit losses on loans (a) 145,212 55,864 10,879 644 (9,922) (605) (3,381) 198

Investments in Qualified Afford

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities	12 Months Ended
	Dec. 31, 2022
Investments in Qualified Affordable Housing Partnerships, Net [Abstract]
Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities	Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities The CRA encourages banks to meet the credit needs of their communities, particularly low- and moderate-income individuals and neighborhoods. The Company invests in certain affordable housing projects in the form of ownership interests in limited partnerships or limited liability companies that qualify for CRA consideration and tax credits. These entities are formed to develop and operate apartment complexes designed as high-quality affordable housing for lower income tenants throughout the U.S. To fully utilize the available tax credits, each of these entities must meet the regulatory affordable housing requirements for a minimum 15-year compliance period. In addition to affordable housing projects, the Company invests in small business investment companies and new market tax credit projects that qualify for CRA consideration, as well as eligible projects that qualify for renewable energy and historic tax credits. Investments in renewable energy tax credits help promote the development of renewable energy sources, and investments in historic tax credits promote the rehabilitation of historic buildings and economic revitalization of the surrounding areas. For the Company’s accounting policies and impairment evaluation and monitoring process of tax credit investments, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Securities and Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Note 2 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K. The following table presents investments and unfunded commitments of the Company’s qualified affordable housing partnerships, tax credit, and other investments as of December 31, 2022 and 2021: December 31, 2022 2021 ($ in thousands) Assets Liabilities - Unfunded Commitments (1) Assets Liabilities - Unfunded Commitments (1) Investments in qualified affordable housing partnerships, net $ 413,253 $ 266,654 $ 289,741 $ 146,152 Investments in tax credit and other investments, net 350,003 185,797 338,522 163,464 Total $ 763,256 $ 452,451 $ 628,263 $ 309,616 (1) Included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. Investments in tax credit and other investments, net presented in the table above include equity securities that are mutual funds with readily determinable fair values of $24.0 million and $26.6 million, as of December 31, 2022 and 2021, respectively. The Company invests in these mutual funds for CRA purposes. The Company also held equity securities without readily determinable fair values totaling $36.5 million and $33.1 million as of December 31, 2022 and 2021, respectively. The following table presents additional information related to the investments in qualified affordable housing partnerships, tax credit and other investments for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Investments in qualified housing partnerships, net Tax credits and other tax benefits recognized $ 52,132 $ 50,643 $ 45,971 Amortization expense included in income tax expense $ 38,759 $ 33,248 $ 37,132 Investments in tax credit and other investments, net Amortization of tax credit and other investments $ 113,358 $ 122,457 $ 70,082 Unrealized (losses) gains on equity securities with readily determinable values $ (2,928) $ (746) $ 732 Impairment recoveries (losses), net ( 1) $ 469 $ 1,250 $ (3,699) (1) For the year ended December 31, 2022, impairment recoveries of $3.4 million were related to three energy tax credits and one historic tax credit, respectively, offset by impairment losses of $2.9 million related to two historic tax credits. For the year ended December 31, 2021, impairment recoveries were related to one historic tax credit and two energy tax credits. For the year ended December 31, 2020, impairment losses of $4.8 million and $360 thousand related to three historic tax credits and one non-marketable equity security, respectively, offset by impairment recoveries of $1.5 million related to one energy tax credit and three historic tax credits. As of December 31, 2022, the Company’s unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments are estimated to be funded as follows: ($ in thousands) Amount 2023 $ 312,795 2024 64,576 2025 64,617 2026 3,936 2027 1,413 Thereafter 5,114 Total $ 452,451 Variable Interest Entities The majority of both the investments in affordable housing partnerships and tax credit and other investments discussed above are VIEs where the Company is a limited partner in these partnerships, and an unrelated third party is typically the general partner or managing member who has control over the significant activities of these investments. While the Company’s interest in some of the investments may exceed 50% of the outstanding equity interests, the Company does not consolidate these structures due to the general partner’s or managing member’s ability to manage the entity, which is indicative of the general partner’s or managing member’s power over the entity. The Company’s maximum exposure to loss in connection with these partnerships consists of the unamortized investment balance and any tax credits claimed that may become subject to recapture. Special purpose entities formed in connection with securitization transactions are generally considered VIEs. A CLO is a VIE that purchases a pool of assets consisting primarily of non-investment grade corporate loans, and issues multiple tranches of notes to investors to fund the asset purchases and pay upfront expenses associated with forming the CLO. The Company served as the collateral manager of a CLO that closed in 2019 and subsequently reassigned its portfolio manager responsibilities in 2020. The Company retained the top three investment grade-rated tranches issued by the CLO, for which the total carrying amount was $284.3 million and $291.7 million as of December 31, 2022 and 2021 , respectively.

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill Total goodwill was $465.7 million as of both December 31, 2022 and 2021. The Company’s goodwill impairment test is performed annually as of December 31, or more frequently as events occur or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying value. The Company completed its annual goodwill impairment test as of December 31, 2022 by using a quantitative assessment, and concluded goodwill was not impaired. Additional information pertaining to the Company’s accounting policy for goodwill is summarized in Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Goodwill to the Consolidated Financial Statements in this Form 10-K.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2022
DEPOSIT ACCOUNTS
Deposits	Deposits The following table presents the composition of the Company’s deposits as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 2021 Deposits: Noninterest-bearing demand $ 21,051,090 $ 22,845,464 Interest-bearing checking 6,672,165 6,524,721 Money market 12,265,024 13,130,300 Savings 2,649,037 2,888,065 Time deposits (1) : Domestic office 11,878,734 6,940,013 Foreign office 1,451,799 1,021,969 Total deposits $ 55,967,849 $ 53,350,532 (1) The aggregate amount of time deposits that met or exceeded the deposit insurance limit was $10.56 billion and $5.95 billion as of December 31, 2022 and 2021, respectively. The following table presents the scheduled maturities of time deposits for the five years succeeding December 31, 2022: ($ in thousands) Amount 2023 $ 13,102,192 2024 201,014 2025 16,009 2026 4,795 2027 6,523 Total $ 13,330,533

Federal Home Loan Bank Advances

Federal Home Loan Bank Advances and Long-Term Debt	12 Months Ended
	Dec. 31, 2022
FEDERAL HOME LOAN BANK ADVANCES AND LONG-TERM DEBT
Federal Home Loan Bank Advances and Long-Term Debt	Federal Home Loan Bank Advances and Long-Term Debt The following table presents the balance of the Company’s junior subordinated debt and FHLB advances as of December 31, 2022 and 2021, and the related contractual rates and maturity dates as of December 31, 2022: ($ in thousands) Interest Rate Maturity Dates December 31, 2022 2021 Amount Amount Parent company Junior subordinated debt (1 ) — floating (2) 6.12% — 6.67% 2034 — 2037 $ 147,950 $ 147,658 Bank FHLB advances (3 ) — floating (2) —% 2022 $ — $ 249,331 (1) The weighted-average contractual interest rates for junior subordinated debt were 3.49% and 1.74% as of December 31, 2022 and 2021, respectively. (2) Floating interest rates reset monthly or quarterly based on London Interbank Offered Rate (“LIBOR”). (3) The weighted-average contractual interest rates for FHLB advances were 1.89% and 1.17% as of December 31, 2022 and 2021, respectively. FHLB Advances The Bank’s available borrowing capacity from FHLB advances totaled $12.77 billion and $11.93 billion as of December 31, 2022 and 2021, respectively. The Bank’s available borrowing capacity from the FHLB is derived from its portfolio of loans that are pledged to the FHLB, reduced by any outstanding FHLB advances. There were no FHLB advances as of December 31, 2022. As of December 31, 2021, all advances were secured by real estate loans. Long-Term Debt — Junior Subordinated Debt As of December 31, 2022, East West had six statutory business trusts for the purpose of issuing junior subordinated debt to third party investors. The junior subordinated debt was issued in connection with the East West’s various pooled trust preferred securities offerings. The Trusts issued both fixed and variable rate capital securities, representing undivided preferred beneficial interests in the assets of the Trusts, to third party investors. East West is the owner of all the beneficial interests represented by the common securities of the Trusts. The junior subordinated debt is recorded as a component of long-term debt and includes the value of the common stock issued by six of East West’s wholly-owned subsidiaries in conjunction with these transactions. The common stock is recorded in Other assets on the Consolidated Balance Sheet for the amount issued in connection with these junior subordinated debt issuances. The proceeds from these issuances represent liabilities of East West to the Trusts and are reported as a component of L o ng-term debt on the Consolidated Balance Sheet. Interest payments on these securities are made quarterly and are deductible for tax purposes. The following table presents the outstanding junior subordinated debt issued by each trust as of December 31, 2022, and 2021: Issuer Stated (1) Stated Current Rate December 31, 2022 December 31, 2021 Aggregate Aggregate Aggregate Aggregate ($ in thousands) East West Capital Trust V November 2034 3-month LIBOR + 1.80% 6.49% $ 464 $ 15,000 $ 464 $ 15,000 East West Capital Trust VI September 2035 3-month LIBOR + 1.50% 6.27% 619 20,000 619 20,000 East West Capital Trust VII June 2036 3-month LIBOR + 1.35% 6.12% 928 30,000 928 30,000 East West Capital Trust VIII June 2037 3-month LIBOR + 1.40% 6.13% 619 18,000 619 18,000 East West Capital Trust IX September 2037 3-month LIBOR + 1.90% 6.67% 928 30,000 928 30,000 MCBI Statutory Trust I December 2035 3-month LIBOR + 1.55% 6.32% 1,083 35,000 1,083 35,000 Total $ 4,641 $ 148,000 $ 4,641 $ 148,000 (1) The debt instruments above mature in more than five years after December 31, 2022 and are subject to call options where early redemption requires appropriate notice.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The following table presents the components of income tax expense (benefit) for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Current income tax expense (benefit): Federal $ 163,797 $ 84,249 $ 84,560 State 160,629 95,939 74,252 Foreign 3,133 (1,554) 671 Total current income tax expense 327,559 178,634 159,483 Deferred income (benefit) tax expense: Federal (23,484) 1,528 (28,093) State (21,835) 3,259 (11,671) Foreign 1,331 (25) (1,751) Total deferred income (benefit) tax expense (43,988) 4,762 (41,515) Income tax expense $ 283,571 $ 183,396 $ 117,968 The following table presents the reconciliation of the federal statutory rate to the Company’s effective tax rate for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 2021 2020 Statutory U.S. federal tax rate 21.0 % 21.0 % 21.0 % U.S. state income taxes, net of U.S. federal income tax effect 7.8 7.4 7.2 Tax credits and benefits, net of related expenses (8.9) (11.3) (12.4) Other, net 0.2 0.3 1.4 Effective tax rate 20.1 % 17.4 % 17.2 % The following table summarizes the tax effects of temporary differences that give rise to a significant portion of deferred tax assets and liabilities as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 2021 Deferred tax assets: Allowance for credit losses and nonperforming assets valuation allowance $ 191,187 $ 166,398 Investments in qualified affordable housing partnerships, tax credit and other investments, net 21,011 14,977 Stock compensation and other accrued compensation 25,857 23,954 Interest income on nonaccrual loans 5,185 4,192 State taxes 13,259 5,237 Net unrealized losses on debt securities and derivatives 309,837 37,423 Tax credit carryforwards — 8,692 Premises and equipment 3,827 1,434 Lease liabilities 34,859 31,324 Other 6,169 1,018 Total deferred tax assets $ 611,191 $ 294,649 Deferred tax liabilities: Equipment lease financing $ 27,237 $ 26,607 Investments in qualified affordable housing partnerships, tax credit and other investments, net 7,709 12,187 FHLB stock dividends 1,926 1,886 Mortgage servicing assets 1,963 1,759 Acquired debts 1,477 1,536 Prepaid expenses 2,478 1,525 Operating lease right-of-use assets 32,606 29,472 Other 6,270 1,547 Total deferred tax liabilities $ 81,666 $ 76,519 Net deferred tax assets $ 529,525 $ 218,130 As of both December 31, 2022 and 2021, the Company concluded that no valuation allowance was necessary to reduce the deferred tax assets since estimated future taxable income will be sufficient to utilize these assets. For further information on the Company’s valuation policy on deferred taxes, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Income Taxes to the Consolidated Financial Statements in this Form 10-K. The following table presents a reconciliation of the beginning and ending balances of unrecognized tax benefits for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, ($ in thousands) 2022 2021 2020 Beginning balance $ 5,045 $ 5,045 $ — Additions for tax positions related to prior years — — 5,045 Settlements with taxing authorities (4,568) — — Ending balance $ 477 $ 5,045 $ 5,045 The Company recognizes interest and penalties, as applicable, related to the underpayment of income taxes as a component of Income tax expense on the Consolidated Statement of Income. In 2022, the Company resolved an issue regarding previously claimed tax credits related to DC Solar and affiliates with the Internal Revenue Service (“IRS”) and remitted the taxes and interest owed on the 2018 tax year. The total amount paid under this settlement was $5.2 million, including $4.6 million of taxes and interest of $599 thousand. The amount of net interest and penalties related to unrecognized tax benefits was immaterial for all periods presented. The Company files federal income tax returns, as well as returns in various state and foreign jurisdictions. Beginning in the 2012 tax year, the Company has executed a Memorandum of Understanding with the IRS to voluntarily participate in the IRS Compliance Assurance Process (“CAP”). Under the CAP, the IRS audits the tax position of the Company to identify and resolve any tax issues that may arise throughout the tax year. The objective of the CAP is to resolve issues in a timely and contemporaneous manner and eliminate the need for a lengthy post-filing examination. The Company’s 2022 tax year is under the CAP audit. The Company is subject to income tax examination by the IRS for the tax years 2019 and forward. The Company is also subject to tax examination in various state jurisdictions for the tax years 2017 and forward. The Company is currently under examination by certain state and local jurisdictions for tax years 2017 through 2019 in New York, New York City and California. The Company does not believe that the outcome of unresolved issues or claims in any of the tax jurisdictions is likely to be material on the Company’s Consolidated Financial Statements. The Company believes that adequate provisions have been recorded for all income tax uncertainties consistent with ASC 740, Income Taxes as of December 31, 2022.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments to Extend Credit — In the normal course of doing business, the Company provides loan commitments to customers on predetermined terms. These outstanding commitments to extend credit are not reflected in the accompanying Consolidated Financial Statements. While the Company does not anticipate losses from these transactions, commitments to extend credit are included in determining the appropriate level of the allowance for unfunded credit commitments, and outstanding commercial letters of credit and SBLCs. The following table presents the Company’s credit-related commitments as of December 31, 2022 and 2021: December 31, 2022 2021 ($ in thousands) Expire in One Year or Less Expire After One Year Through Expire After Three Years Through Expire After Five Years Total Total Loan commitments $ 3,680,606 $ 3,469,265 $ 971,534 $ 90,166 $ 8,211,571 $ 6,911,398 Commercial letters of credit and SBLCs 677,255 462,367 69,815 1,082,529 2,291,966 2,221,699 Total $ 4,357,861 $ 3,931,632 $ 1,041,349 $ 1,172,695 $ 10,503,537 $ 9,133,097 Loan commitments are agreements to lend to customers provided there are no violations of any conditions established in the agreement. Commitments generally have fixed expiration dates or other termination clauses and may require maintenance of compensatory balances. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future funding requirements. Commercial letters of credit are issued to facilitate domestic and foreign trade transactions, while SBLCs are generally contingent upon the failure of the customers to perform according to the terms of the underlying contract with the third party. As a result, the total contractual amounts do not necessarily represent future funding requirements. The Company’s historical experience is that SBLCs typically expire without being funded. Additionally, in many cases, the Company holds collateral in various forms against these SBLCs. As part of its risk management activities, the Company monitors the creditworthiness of customers in conjunction with its SBLC exposure. Customers are obligated to reimburse the Company for any payment made on the customers’ behalf. If the customers fail to pay, the Company would, as applicable, liquidate the collateral and/or offset existing accounts. As of December 31, 2022, total letters of credit of $2.29 billion consisted of SBLCs of $2.27 billion and commercial letters of credit of $21.6 million. As of December 31, 2021, total letters of credit of $2.22 billion consisted of SBLCs of $2.14 billion and commercial letters of credit of $78.9 million. As of both December 31, 2022 and 2021, substantially all SBLCs were rated as “Pass” by the Bank’s internal credit risk rating system. The Company applies the same credit underwriting criteria to extend loans, commitments and conditional obligations to customers. Each customer’s creditworthiness is evaluated on a case-by-case basis. Collateral and financial guarantees may be obtained based on management’s assessment of a customer’s credit. Collateral may include cash, accounts receivable, inventory, property, plant and equipment, and real estate property. Estimated exposure to loss from these commitments is included in the allowance for unfunded credit commitments, and amounted to $26.2 million and $27.5 million as of December 31, 2022 and 2021, respectively. Guarantees — From time to time, the Company sells or securitizes single-family and multifamily residential loans with recourse in the ordinary course of business. The Company is obligated to repurchase up to the recourse component of the loans if the loans default. The following table presents the carrying amounts of loans sold or securitized with recourse and the maximum potential future payments as of December 31, 2022 and 2021: Maximum Potential Future Payments Carrying Value December 31, December 31, 2022 2021 2022 2021 ($ in thousands) Expire in One Year or Less Expire After One Year Through Three Years Expire After Three Years Through Expire After Five Years Total Total Total Total Single-family residential loans sold or securitized with recourse $ 36 $ 111 $ — $ 6,634 $ 6,781 $ 7,926 $ 6,781 $ 7,926 Multifamily residential loans sold or securitized with recourse — — — 14,996 14,996 14,996 21,320 23,169 Total $ 36 $ 111 $ — $ 21,630 $ 21,777 $ 22,922 $ 28,101 $ 31,095 The Company’s recourse reserve related to these guarantees is included in the allowance for unfunded credit commitments and totaled $37 thousand and $29 thousand as of December 31, 2022 and 2021, respectively. The allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. The Company continues to experience minimal losses from the single-family and multifamily residential loan portfolios sold or securitized with recourse. Litigation — The Company is a party to various legal actions arising in the normal course of doing business. In accordance with ASC 450, Contingencies , the Company accrues reserves for outstanding lawsuits, claims and proceedings when a loss contingency is probable and can be reasonably estimated. The Company estimates the amount of loss contingencies using current available information from legal proceedings, advice from legal counsel and available insurance coverage. Due to the inherent subjectivity of the assessments and unpredictability of the outcomes of the legal proceedings, any amounts accrued or included in this aggregate amount may not represent the ultimate loss to the Company from the legal proceedings in question. Thus, the Company’s exposure and ultimate losses may be higher, and possibly significantly more than the amounts accrued. Other Commitments — The Company has commitments to invest in qualified affordable housing partnerships, tax credit and other investments as discussed in Note 7 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities to the Consolidated Financial Statements in this Form 10-K. As of December 31, 2022 and 2021, these commitments totaled $452.5 million and $309.6 million, respectively. These commitments are included in Accrued expenses and other liabilities on the Consolidated Balance Sheet.

Stock Compensation Plans

Stock Compensation Plans	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Stock Compensation Plans	Stock Compensation Plans Pursuant to the Company’s 2021 Stock Incentive Plan, as amended, the Company may issue stocks, stock options, restricted stock, RSUs including performance-based RSUs, stock purchase warrants, stock appreciation rights, phantom stock and dividend equivalents to eligible employees, non-employee directors, consultants, and other service providers of the Company and its subsidiaries. The Company has granted RSUs as its primary incentive awards. There were no outstanding awards other than RSUs as of December 31, 2022, 2021 and 2020. An aggregate of 17.1 million shares of common stock were authorized under the 2021 Stock Incentive Plan, and the total number of shares available for grant was approximately 4.9 million as of December 31, 2022. The following table presents a summary of the total share-based compensation expense and the related net tax benefits (deficiencies) associated with the Company’s various employee share-based compensation plans for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Stock compensation costs $ 37,601 $ 32,567 $ 29,237 Related net tax benefits (deficiencies) for stock compensation plans $ 5,293 $ 1,760 $ (1,839) Restricted Stock Units — RSUs are granted under the Company’s long-term incentive plan at no cost to the recipient. RSUs generally cliff vest after three years of continued employment from the date of the grant, and are authorized to settle predominantly in shares of the Company’s common stock. Certain RSUs are settled in cash. Dividends are accrued during the vesting period and are paid at the time of vesting. While a portion of RSUs are time-based vesting awards, others vest subject to the attainment of specified performance goals, referred to as “performance-based RSUs.” Performance-based RSUs are granted annually upon approval by the Company’s Compensation Committee based on the performance in the year prior to the grant date of the award. The number of awards that vests can range from zero to a maximum of 200% of the granted number of awards based on the Company’s achievement of specified performance criteria over a performance period of three years. For accounting on stock-based compensation plans, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Stock-Based Compensation to the Consolidated Financial Statements in this Form 10-K for additional information. During the year ended December 31, 2022, the Company modified 31,523 time-based RSUs held by 119 foreign employees from vesting in cash to vesting in shares without changing any of the other terms. There was no incremental compensation expense recognized as a result of the modification as of December 31, 2022. The following table presents a summary of the activities for the Company’s time-based and performance-based RSUs that will be settled in shares for the year ended December 31, 2022. The number of outstanding performance-based RSUs stated below reflects the number of awards granted on the grant date. Time-Based RSUs Performance-Based RSUs Shares Weighted- Shares Weighted- Outstanding, January 1, 2022 1,329,946 $ 52.65 369,731 $ 54.28 Modified from cash-settled RSUs 31,523 77.28 — — Granted 444,359 78.15 91,874 77.91 Vested (373,363) 53.07 (125,213) 54.64 Forfeited (135,599) 63.15 (3,882) 77.91 Outstanding, December 31, 2022 1,296,866 $ 60.77 332,510 $ 60.40 The following table presents a summary of the activities for the Company’s time-based RSUs that are cash-settled for the year ended December 31, 2022. During 2022, the amount of cash paid to settle the vested RSUs was $318 thousand. Shares Outstanding, January 1, 2022 32,647 Modified to share-settled RSUs (31,523) Granted 2,668 Vested (3,471) Forfeited (321) Outstanding, December 31, 2022 — The weighted-average grant date fair value of the time-based RSUs granted during the years ended December 31, 2022, 2021, and 2020 was $78.15, $71.88, and $40.61, respectively. The weighted-average grant date fair value of the performance-based RSUs granted during the years ended December 31, 2022, 2021 and 2020 was $77.91, $77.67 and $39.79, respectively. The total fair value of time-based RSUs that vested during the years ended December 31, 2022, 2021 and 2020 was $30.0 million, $22.7 million and $11.5 million, respectively. The total fair value of performance-based RSUs that vested during the years ended December 31, 2022, 2021, and 2020 was $17.6 million, $15.4 million and $8.9 million, respectively. As of December 31, 2022, there were $24.3 million of unrecognized compensation costs related to unvested time-based RSUs expected to be recognized over a weighted-average period of 1.79 years, and $13.8 million of unrecognized compensation costs related to unvested performance-based RSUs expected to be recognized over a weighted-average period of 1.76 years. Employee Stock Purchase Plan — The 1998 Employee Stock Purchase Plan (the “Purchase Plan”) provides eligible employees of the Company the right to purchase shares of its common stock at a discount. Employees could purchase shares at 90% of the fair market price subject to an annual purchase limitation of $22,500 per employee. As of December 31, 2022, the Purchase Plan qualifies as a non-compensatory plan under Section 423 of the Internal Revenue Code and, accordingly, no compensation expense has been recognized. 2,000,000 shares of the Company’s common stock were authorized for sale under the Purchase Plan. During the years ended December 31, 2022 and 2021, 48,990 shares totaling $3.2 million and 37,725 shares totaling $2.6 million, respectively, were sold to employees under the Purchase Plan. As of December 31, 2022, there were 217,785 shares available under the Purchase Plan.

Stockholders_ Equity and Earnin

Stockholders’ Equity and Earnings Per Share	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Stockholders’ Equity and Earnings Per Share	Stockholders’ Equity and Earnings Per Share The following table presents the basic and diluted EPS calculations for the years ended December 31, 2022, 2021 and 2020. For more information on the calculation of EPS, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Earnings Per Share to the Consolidated Financial Statements in this Form 10-K. ($ and shares in thousands, except per share data) Year Ended December 31, 2022 2021 2020 Basic: Net income $ 1,128,083 $ 872,981 $ 567,797 Weighted-average number of shares outstanding 141,326 141,826 142,336 Basic EPS $ 7.98 $ 6.16 $ 3.99 Diluted: Net income $ 1,128,083 $ 872,981 $ 567,797 Weighted-average number of shares outstanding 141,326 141,826 142,336 Add: Diluted impact of unvested RSUs 1,166 1,314 655 Diluted weighted-average number of shares outstanding 142,492 143,140 142,991 Diluted EPS $ 7.92 $ 6.10 $ 3.97 For the years ended December 31, 2022, 2021 and 2020, approximately 3 thousand, 6 thousand and 134 thousand weighted-average shares of anti-dilutive RSUs, respectively, were excluded from the diluted EPS computation. Stock Repurchase Program — In 2020, the Company’s Board of Directors authorized a stock repurchase program to buy back up to $500.0 million of the Company’s common stock; the Company repurchased 4,471,682 shares at an average price of $32.64 per share, for a total cost of $146.0 million. In 2022, the Company repurchased 1,385,517 shares at an average price of $72.17 per share at a total cost of $100.0 million. The Company did not repurchase any shares during 2021.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The following table presents the changes in the components of AOCI balances for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Debt Cash Foreign (1) Total Balance, December 31, 2019 $ (2,419) $ — $ (15,989) $ (18,408) Net unrealized gains (losses) arising during the period 63,329 (1,149) 9,297 71,477 Amounts reclassified from AOCI (8,663) (81) — (8,744) Changes, net of tax 54,666 (1,230) 9,297 62,733 Balance, December 31, 2020 $ 52,247 $ (1,230) $ (6,692) $ 44,325 Net unrealized (losses) gains arising during the period (136,846) 866 1,757 (134,223) Amounts reclassified from AOCI (1,104) 621 — (483) Changes, net of tax (137,950) 1,487 1,757 (134,706) Balance, December 31, 2021 $ (85,703) $ 257 $ (4,935) $ (90,381) Net unrealized losses arising during the period (620,870) (52,623) (16,348) (689,841) Amounts reclassified from AOCI 11,758 2,835 — 14,593 Changes, net of tax (609,112) (49,788) (16,348) (675,248) Balance, December 31, 2022 $ (694,815) (2) $ (49,531) $ (21,283) $ (765,629) (1) Represents foreign currency translation adjustments related to the Company’s net investment in non-U.S. operations, including related hedges. The functional currency and reporting currency of the Company’s foreign subsidiary was RMB and USD, respectively. (2) Includes after-tax unamortized losses of $113.0 million related to AFS debt securities that were transferred to HTM. For further information, refer to Note 4 — Securities to the Consolidated Financial Statements in this Form 10-K. The following table presents the components of other comprehensive income (loss), reclassifications to net income and the related tax effects for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Before - Tax Net-of- Before - Tax Net-of- Before - Tax Net-of- Debt securities: Net unrealized (losses) gains arising during the period $ (881,516) $ 260,646 $ (620,870) $ (194,393) $ 57,547 $ (136,846) $ 89,868 $ (26,539) $ 63,329 Reclassification adjustments: Net realized gains reclassified into net income (1) (1,306) 386 (920) (1,568) 464 (1,104) (12,299) 3,636 (8,663) Amortization of unrealized losses on transferred securities (2) 18,000 (5,322) 12,678 — — — — — — Net change (864,822) 255,710 (609,112) (195,961) 58,011 (137,950) 77,569 (22,903) 54,666 Cash flow hedges: Net unrealized (losses) gains arising during the period (74,069) 21,446 (52,623) 1,210 (344) 866 (1,604) 455 (1,149) Net realized losses (gains) reclassified into net income (3) 4,004 (1,169) 2,835 868 (247) 621 (113) 32 (81) Net change (70,065) 20,277 (49,788) 2,078 (591) 1,487 (1,717) 487 (1,230) Foreign currency translation adjustments, net of hedges: Net unrealized (losses) gains arising during the period (15,059) (1,289) (16,348) 463 1,294 1,757 7,398 1,899 9,297 Net change (15,059) (1,289) (16,348) 463 1,294 1,757 7,398 1,899 9,297 Other comprehensive (loss) income $ (949,946) $ 274,698 $ (675,248) $ (193,420) $ 58,714 $ (134,706) $ 83,250 $ (20,517) $ 62,733 (1) Pre-tax amounts were reported in G ains on sales of AFS debt securities on the Consolidated Statement of Income. (2) Represents unrealized losses amortized over the remaining lives of securities that were transferred from the AFS to HTM portfolio. (3) Pre-tax amounts related to cash flow hedges on CRE loans and long-term borrowings were reported in Interest and dividend income and in Interest expense, respectively , on the Consolidated Statement of Income.

Regulatory Requirements and Mat

Regulatory Requirements and Matters	12 Months Ended
	Dec. 31, 2022
Banking and Thrift, Interest [Abstract]
Regulatory Requirements and Matters	Regulatory Requirements and Matters The Company and the Bank are subject to regulatory capital adequacy requirements administered by the federal banking agencies. The Bank is a member bank of the Federal Reserve System and is primarily regulated by the Federal Reserve and the California Department of Financial Protection and Innovation. The Company and the Bank are required to comply with the Basel III Capital Rules adopted by the federal banking agencies. As standardized approaches institutions, the Basel III Capital Rules require that banking organizations, such as the Company and the Bank, to maintain a minimum Common Equity Tier 1 (“CET1”) capital ratio of at least 4.5%, a Tier 1 capital ratio of at least 6.0%, a total capital ratio of at least 8.0%, and a Tier 1 leverage ratio of a least 4.0% to be considered adequately capitalized. Failure to meet the minimum capital requirements can result in certain mandatory actions and possibly additional discretionary actions by the regulators that, if undertaken, could have a direct material effect on the Company’s Consolidated Financial Statements. The Company and the Bank are also subject to maintain a capital conservation buffer of 2.5% above the minimum risk-based capital ratios under the Basel III Capital Rules. Banking institutions with a ratio of CET1 to risk-weighted assets above the minimum but which does not exceed the capital conservation buffer will face constraints on dividends, share repurchases and executive compensation based on the amount of the shortfall. The Federal Deposit Insurance Corporation Improvement Act of 1991 requires that the federal regulatory agencies adopt regulations defining capital categories for banks: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized and critically undercapitalized. Under the agencies’ Prompt Corrective Action regulations, failure of a bank to be well capitalized results in an escalating series of adverse regulatory consequences. Effective January 1, 2020, the Company adopted the ASU 2016-13 Financial Instruments — Credit Losses (Topic 326) Measurement of Credit Losses on Financial instrument that introduced the CECL methodology . In March 2020, the federal banking agencies issued the Interim Final Rule that provided banking organizations that adopted the CECL with the phase-in option to delay the estimated impact of CECL on regulatory capital. The Bank and the Company have elected the CECL phase-in option in 2020 and delayed the impact of CECL on regulatory capital through 2021, after which the effects are being phased in over a three-year period from January 1, 2022 through December 31, 2024. As of both December 31, 2022 and 2021, the Company and the Bank were both categorized as well capitalized based on applicable U.S. regulatory capital ratio requirements in accordance with Basel III standardized approaches, as set forth in the table below. The Company believes that no changes in conditions or events have occurred since December 31, 2022, which would result in changes that would cause the Company or the Bank to fall below the well capitalized level. The following table presents the regulatory capital information of the Company and the Bank as of December 31, 2022 and 2021: ($ in thousands) Basel III December 31, 2022 December 31, 2021 Minimum Fully Phased-in Minimum Capital Ratios (2) Well- Amount Ratio Amount Ratio Total capital (to risk-weighted assets) Company $ 7,003,299 14.0 % $ 6,124,827 14.1 % 8.0 % 10.5 % 10.0 % East West Bank $ 6,760,612 13.5 % $ 5,766,734 13.2 % 8.0 % 10.5 % 10.0 % Tier 1 capital (to risk-weighted assets) Company $ 6,347,108 12.7 % $ 5,559,357 12.8 % 6.0 % 8.5 % 6.0 % East West Bank $ 6,252,421 12.5 % $ 5,349,264 12.3 % 6.0 % 8.5 % 8.0 % CET1 capital (to risk-weighted assets) Company $ 6,347,108 12.7 % $ 5,559,357 12.8 % 4.5 % 7.0 % 6.5 % East West Bank $ 6,252,421 12.5 % $ 5,349,264 12.3 % 4.5 % 7.0 % 6.5 % Tier 1 leverage capital (to adjusted average assets) Company (1) $ 6,347,108 9.8 % $ 5,559,357 9.0 % 4.0 % 4.0 % N/A East West Bank $ 6,252,421 9.7 % $ 5,349,264 8.6 % 4.0 % 4.0 % 5.0 % Risk-weighted assets Company $ 50,036,719 N/A $ 43,585,105 N/A N/A N/A N/A East West Bank $ 50,024,772 N/A $ 43,572,086 N/A N/A N/A N/A Adjusted quarterly average total assets Company $ 65,221,597 N/A $ 62,387,003 N/A N/A N/A N/A East West Bank $ 65,198,267 N/A $ 62,366,514 N/A N/A N/A N/A N/A — Not applicable. (1) The Tier 1 leverage capital well-capitalized requirement applies only to the Bank since there is no Tier 1 leverage ratio component in the definition of a well-capitalized bank holding company. (2) Includes a 2.5% capital conservation buffer requirement above the minimum risk-based capital ratios.

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2022
Segment Reporting [Abstract]
Business Segments	Business Segments The Company organizes its operations into three reportable operating segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other. These segments are defined by the type of customers served, and the related products and services provided. The segments reflect how financial information is currently evaluated by management. Operating segment results are based on the Company’s internal management reporting process, which reflects assignments and allocations of certain balance sheet and income statement items. The information presented is not indicative of how the segments would perform if they operated as independent entities due to the interrelationships among the segments. The Consumer and Business Banking segment primarily provides financial products and services to consumer and commercial customers through the Company’s domestic branch network and digital banking platform. This segment offers consumer and commercial deposits, mortgage and home equity loans, and other products and services. It also originates commercial loans for small- and medium-sized enterprises through the Company’s branch network. Other products and services provided by this segment include wealth management, treasury management, interest rate risk hedging and foreign exchange services. The Commercial Banking segment primarily generates commercial loan and deposit products. Commercial loan products include CRE lending, construction finance, commercial business lending, working capital lines of credit, trade finance, letters of credit, affordable housing lending, asset-based lending, asset-backed finance, project finance and equipment financing. Commercial deposit products and other financial services include treasury management, foreign exchange services and interest rate and commodity risk hedging. The remaining centralized functions, including the corporate treasury activities of the Company and eliminations of inter-segment amounts, have been aggregated and included in the Other segment, which provides broad administrative support to the two core segments, namely the Consumer and Business Banking and the Commercial Banking segments. The Company utilizes an internal reporting process to measure the performance of the three operating segments within the Company. The internal reporting process derives operating segment results by utilizing allocation methodologies for revenues and expenses. Net interest income of each segment represents the difference between actual interest earned on assets and interest incurred on liabilities of the segment, adjusted for funding charges or credits through the Company’s internal funds transfer pricing (“FTP”) process. Noninterest income and noninterest expense directly attributable to a business segment are assigned to that segment. Indirect costs, including technology-related costs and corporate overhead, are allocated based on a segment’s estimated usage using factors including but not limited to, full-time equivalent employees, net interest income, and loan and deposit volume. Charge-offs are recorded to the segment directly associated with the respective loans charged off, and provision for credit losses is recorded to the segments based on the related loans for which allowances are evaluated. The Company’s internal reporting process utilizes a full-allocation methodology. Under this methodology, corporate and indirect expenses incurred by the Other segment are allocated to the Consumer and Business Banking and the Commercial Banking segments, except certain corporate treasury-related expenses and insignificant unallocated expenses. The corporate treasury function within the Other segment is responsible for the Company’s liquidity and interest rate management. The Company’s internal FTP process is also managed by the corporate treasury function included within the Other segment. The process is formulated with the goal of encouraging loan and deposit growth that is consistent with the Company’s overall profitability objectives, as well as to provide a reasonable and consistent basis for the measurement of its business segments’ net interest margins and profitability. The FTP process charges a cost to fund loans (“FTP charges for loans”) and allocates credits for funds provided from deposits (“FTP credits for deposits”) using internal FTP rates. FTP charges for loans are determined based on a matched cost of funds, which is tied to the pricing and term characteristics of the loans. FTP credits for deposits are based on matched funding credit rates, which are tied to the implied or stated maturity of the deposits. FTP credits for deposits reflect the long-term value generated by the deposits. The net spread between the total internal FTP charges and credits is recorded as part of net interest income in the Other segment. The FTP process transfers the corporate interest rate risk exposure to the treasury function within the Other segment, where such exposures are centrally managed. The Company’s internal FTP assumptions and methodologies are reviewed at least annually to ensure that the process is reflective of current market conditions. The following tables present the operating results and other key financial measures for the individual operating segments as of and for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Consumer and Commercial Other Total Year Ended December 31, 2022 Net interest income (loss) before provision for credit losses $ 1,170,850 $ 892,386 $ (17,355) $ 2,045,881 Provision for credit losses 27,197 46,303 — 73,500 Noninterest income 110,139 179,248 9,279 298,666 Noninterest expense 397,882 314,185 147,326 859,393 Segment income (loss) before income taxes 855,910 711,146 (155,402) 1,411,654 Segment net income $ 608,120 $ 507,467 $ 12,496 $ 1,128,083 As of December 31, 2022 Segment assets $ 17,385,804 $ 33,042,785 $ 13,683,561 $ 64,112,150 ($ in thousands) Consumer and Commercial Other Total Year Ended December 31, 2021 Net interest income before reversal of provision for credit losses $ 697,101 $ 766,202 $ 68,268 $ 1,531,571 Reversal of provision for credit losses (4,998) (30,002) — (35,000) Noninterest income 94,125 163,768 28,002 285,895 Noninterest expense 364,635 275,649 155,805 796,089 Segment income (loss) before income taxes 431,589 684,323 (59,535) 1,056,377 Segment net income $ 308,630 $ 489,233 $ 75,118 $ 872,981 As of December 31, 2021 Segment assets $ 14,961,809 $ 28,556,706 $ 17,352,186 $ 60,870,701 ($ in thousands) Consumer and Commercial Other Total Year Ended December 31, 2020 Net interest income before provision for credit losses $ 530,829 $ 706,286 $ 140,078 $ 1,377,193 Provision for credit losses 3,885 206,768 — 210,653 Noninterest income 64,115 142,337 29,095 235,547 Noninterest expense 331,750 266,923 117,649 716,322 Segment income before income taxes 259,309 374,932 51,524 685,765 Segment net income $ 185,782 $ 268,476 $ 113,539 $ 567,797 As of December 31, 2020 Segment assets $ 13,351,060 $ 26,958,766 $ 11,847,087 $ 52,156,913

Parent Company Condensed Financ

Parent Company Condensed Financial Statements	12 Months Ended
	Dec. 31, 2022
Condensed Financial Information Disclosure [Abstract]
Parent Company Condensed Financial Statements	Parent Company Condensed Financial Statements The following tables present the Parent Company-only condensed financial statements: CONDENSED BALANCE SHEET ($ in thousands) December 31, 2022 2021 ASSETS Cash and cash equivalents due from subsidiary bank $ 228,531 $ 345,018 Investments in subsidiaries: Bank 5,889,775 5,626,975 Nonbank 13,846 9,136 Investments in tax credit investments, net 1,925 4,082 Other assets 8,516 9,407 TOTAL $ 6,142,593 $ 5,994,618 LIABILITIES AND STOCKHOLDERS’ EQUITY Long-term debt $ 147,950 $ 147,658 Other liabilities 10,031 9,742 Stockholders’ equity 5,984,612 5,837,218 TOTAL $ 6,142,593 $ 5,994,618 CONDENSED STATEMENT OF INCOME ($ in thousands) Year Ended December 31, 2022 2021 2020 Dividends from subsidiaries: Bank $ 240,000 $ 200,000 $ 511,000 Nonbank 157 82 109 Other income — 11 3 Total income 240,157 200,093 511,112 Interest expense on long-term debt 5,450 2,974 3,877 Compensation and employee benefits 6,708 6,370 6,210 (Impairment recoveries) amortization of tax credit and other investments (786) 425 1,248 Other expense 2,040 1,306 1,184 Total expense 13,412 11,075 12,519 Income before income tax benefit and equity in undistributed income of subsidiaries 226,745 189,018 498,593 Income tax benefit 4,269 3,005 4,158 Undistributed earnings of subsidiaries, primarily bank 897,069 680,958 65,046 Net income $ 1,128,083 $ 872,981 $ 567,797 CONDENSED STATEMENT OF CASH FLOWS ($ in thousands) Year Ended December 31, 2022 2021 2020 CASH FLOWS FROM OPERATING ACTIVITIES Net income $ 1,128,083 $ 872,981 $ 567,797 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed earnings of subsidiaries, principally bank (897,069) (680,958) (65,046) Amortization expense 1,333 1,877 1,523 Deferred income (benefit) tax expense (2,193) 2,721 491 Net change in other assets 4,250 (5,685) 40 Net change in other liabilities 779 (81,706) 77,052 Net cash provided by operating activities 235,183 109,230 581,857 CASH FLOWS FROM INVESTING ACTIVITIES Net increase in investments in tax credit investments (1,612) (346) (172) Distributions received from equity method investees 410 436 4,096 Net increase in investments in and advances to nonbank subsidiaries (6,188) (1,476) (2,732) Net cash (used in) provided by investing activities (7,390) (1,386) 1,192 CASH FLOWS FROM FINANCING ACTIVITIES Common stock: Proceeds from issuance pursuant to various stock compensation plans and agreements 3,178 2,573 2,326 Stock tendered for payment of withholding taxes (19,087) (15,702) (8,253) Repurchased of common stock pursuant to the Stock Repurchase Program (99,990) — (145,966) Cash dividends paid (228,381) (188,762) (158,222) Net cash used in financing activities (344,280) (201,891) (310,115) Net (decrease) increase in cash and cash equivalents (116,487) (94,047) 272,934 Cash and cash equivalents, beginning of year 345,018 439,065 166,131 Cash and cash equivalents, end of year $ 228,531 $ 345,018 $ 439,065

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2022
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn January 26, 2023, the Company’s Board of Directors declared first quarter 2023 cash dividends for the Company’s common stock. The common stock cash dividend of $0.48 per share was paid on February 21, 2023 to stockholders of record as of February 6, 2023.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation — The accounting and reporting policies of the Company conform with the U.S. Generally Accepted Accounting Principles (“GAAP”), applicable guidelines prescribed by regulatory authorities and general practices in the banking industry. The preparation of the Consolidated Financial Statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the Consolidated Financial Statements, income and expenses during the reporting period, and the related disclosures. Actual results could differ materially from those estimates. Certain items on the Consolidated Financial Statements and notes for the prior years have been reclassified to conform to the 2022 presentation.
Principles of Consolidation	Principles of Consolidation — The Consolidated Financial Statements in this Annual Report on Form 10-K (“this Form 10-K”) include the accounts of East West and its subsidiaries. Intercompany transactions and accounts have been eliminated in consolidation. East West also has six wholly-owned subsidiaries that are statutory business trusts (the “Trusts”). In accordance with Financial Accounting Standards Board Accounting Standards Codification (“ASC”) Topic 810, Consolidation, the Trusts are not included in the Consolidated Financial Statements.
Cash and Cash Equivalents	Cash and Cash Equivalents — Cash and cash equivalents include cash on hand, cash items in transit, cash due from the Federal Reserve Bank of San Francisco (“FRBSF”) and other financial institutions, and federal funds sold with original maturities up to three months.
Interest-Bearing Deposits with Banks	Interest-Bearing Deposits with Banks — Interest-bearing deposits with banks include cash placed with other banks with original maturities greater than three months and less than one year.
Assets Purchased under Resale Agreements and Assets Sold under Repurchase Agreements	Assets Purchased under Resale Agreements and Assets Sold under Repurchase Agreements — Resale agreements are recorded as receivables based on the values at which the securities or loans are acquired. Repurchase agreements are accounted for as collateralized financing transactions and recorded as liabilities based on the values at which the securities are sold. The Company monitors the values of the underlying assets collateralizing the resale and repurchase agreements, including accrued interest, and obtains or posts additional collateral in order to maintain the appropriate collateral requirements for the transactions.
Securities	Securities — The Company’s securities include various debt securities, marketable and non-marketable equity securities. Debt securities are recorded on the Consolidated Balance Sheet as of their trade dates. The Company classifies its debt securities as trading securities, AFS or HTM debt securities based on management’s intention on the date of the purchase. Debt securities are purchased for liquidity and investment purposes, as part of asset/liability management and other strategic activities. Debt securities for which the Company has the positive intention and ability to hold until maturity are classified as HTM and are carried at amortized cost, net of allowance for credit losses. Debt securities not classified as trading securities or HTM securities are classified as AFS. AFS debt securities are reported at fair value, net of the allowance for credit losses, with unrealized gains and losses recorded in AOCI, net of applicable income taxes. For details of the allowance for credit losses on debt securities, refer to the Allowance for Credit Losses on Available-for-Sale and Held-to-Maturity Debt Securities sections of this note. Interest income, including any amortization of premium or accretion of discount, is included in net income. The Company recognizes realized gains and losses on the sale of AFS debt securities in earnings, using the specific identification method. Upon transfer of a debt security from the AFS to HTM category, the security’s new amortized cost is reset to fair value, reduced by any previous write-offs but excluding any allowance for credit losses. Unrealized gains or losses at the date of transfer of these securities continue to be reported in AOCI and are amortized into interest income over the remaining life of the securities as effective yield adjustments, in a manner consistent with the amortization or accretion of the original purchase premium or discount on the associated security. For transfers of securities from the AFS to HTM category, any allowance for credit losses that was previously recorded under the AFS model is reversed and an allowance for credit losses is subsequently recorded under the HTM debt security model. The reversal and re-establishment of the allowance for credit losses are recorded in the provision for credit losses. Marketable equity securities with readily determinable fair values are recorded at fair value with unrealized gains and losses due to changes in fair value; and are included in Other investment income on the Consolidated Statement of Income. Marketable equity securities include mutual fund investments, which are included in Investments in qualified affordable housing partnership, tax credit and other investments, net on the Consolidated Balance Sheet. Non-marketable equity securities including tax credit investments, and other equity investments that do not have readily determinable fair values are recorded in Investments in qualified affordable housing partnership, tax credit and other investments, net, and Other assets on the Consolidated Balance Sheet and are accounted for under one of the following accounting methods: • Equity Method — When the Company has the ability to exert significant influence over the investee. • Cost Method — The cost method is applied to restricted equity securities held for membership and regulatory purposes, such as FRBSF and FHLB stock. These investments are held at their cost minus impairment. If impaired, the carrying value is written down to the fair value of the security. • Measurement Alternative — This method is applied to all remaining non-marketable equity securities. These securities are carried at cost adjusted for impairment, if any, plus or minus observable price changes in orderly transactions of an identical or similar security of the same issuer. Our impairment review for equity method, cost method and measurement alternative securities typically includes an analysis of the facts and circumstances of each security, the intent or requirement to sell the security, the expectations of cash flows, capital needs and the viability of its business model. For equity method and cost method investments, the Company reduces the asset’s carrying value when the Company considers declines in value to be other-than-temporary impairment (“OTTI”). For securities accounted for under the measurement alternative, the Company reduces the asset value when the fair value is less than the carrying value, without the consideration of recovery.
Loans Held-for-Sale	Loans Held-for-Sale — Loans are initially classified as loans held-for-sale when they are individually identified as being available for immediate sale and management has committed to a formal plan to sell them. Loans held-for-sale are carried at lower of cost or fair value. Subject to periodic review under the Company’s evaluation process, including asset/liability and credit risk management, the Company may transfer certain loans from held-for-investment to held-for-sale measured at lower of cost or fair value. Any write-downs in the carrying amount of the loan at the date of transfer are recorded as charge-offs to allowance for loan losses. Loan origination fees on loans held-for-sale, net of certain costs in processing and closing the loans, are deferred until the time of sale and are included in the periodic determination of the lower of cost or fair value adjustments and/or the gain or loss recognized at the time of sale. A valuation allowance is established if the fair value of such loans is lower than their cost, with a corresponding charge to noninterest income. If the loan or a portion of the loan cannot be sold, it is subsequently transferred back to the loans held-for-investment portfolio from the loans held-for-sale portfolio at the lower of cost or fair value on the transfer date.
Loans Held-for-Investment	Loans Held-for-Investment — At the time of commitment to originate or purchase a loan, the loan is determined to be held-for-investment if it is the Company’s intent to hold the loan to maturity or for the foreseeable future. Loans held-for-investment are stated at their outstanding principal, reduced by an allowance for loan losses and net of deferred loan fees or costs, or unearned fees on originated loans, net of unamortized premiums or unaccreted discounts on purchased loans. Nonrefundable fees and direct costs associated with the origination or purchase of loans are deferred and netted against outstanding loan balances. The deferred net loan fees and costs are recognized in interest income as an adjustment to yield over the loan term using the effective interest method or straight-line method. Discounts/premiums on purchased loans are accreted/amortized to interest income using the effective interest method or straight-line method over the remaining period to the contractual maturity. Interest on loans is calculated using the simple-interest method on daily balances of the principal amounts outstanding. Generally, loans are placed on nonaccrual status when they become 90 days past due or more. Loans are considered past due when contractually required principal or interest payments have not been made on the due dates. Loans are also placed on nonaccrual status when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that full collection of principal or interest becomes uncertain, regardless of the length of past due status. Once a loan is placed on nonaccrual status, interest accrual is discontinued and all unpaid accrued interest is reversed against interest income. Interest payments received on nonaccrual loans are reflected as a reduction of principal and not as interest income. A loan is returned to accrual status when the borrower has demonstrated a satisfactory payment trend subject to management’s assessment of the borrower’s ability to repay the loan.
Troubled Debt Restructurings	Troubled Debt Restructurings — A loan is generally classified as a troubled debt restructuring (“TDR”) when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that the Company would not otherwise consider. The concessions may be granted in various forms, including a below-market change in the stated interest rate, a reduction in the loan balance or accrued interest, a term extension, a payment forbearance and other actions. Loans with contractual terms that have been modified as a TDR and are current at the time of restructuring may remain on accrual status if there is demonstrated performance prior to the restructuring and payment in full under the restructured terms is expected. Otherwise, these loans are placed on nonaccrual status and are reported as nonperforming, until the borrower demonstrates a sustained period of performance, generally six months, and the ability to repay the loan according to the contractual terms. If accruing TDRs cease to perform in accordance with their modified contractual terms, they are placed on nonaccrual status and reported as nonperforming TDRs. TDRs are included in the quarterly allowance for credit losses valuation process. Refer to Allowance for Loan Losses below for a complete discussion.
Allowance for Credit Losses	Allowance for Loan Losses — The allowance for loan losses is established as management’s estimate of expected credit losses inherent in the Company’s lending activities; it is increased by the provision for credit losses and decreased by net charge-offs. The allowance for loan losses is evaluated quarterly by management based on regular reviews of the collectability of the Company’s loans, and more often if deemed necessary. The Company develops and documents the allowance for loan losses methodology at the portfolio segment level. The commercial loan portfolio is comprised of commercial and industrial (“C&I”), commercial real estate (“CRE”), multifamily residential, and construction and land loans; and the consumer loan portfolio is comprised of single-family residential, home equity lines of credit (“HELOCs”), and other consumer loans. The allowance for loan losses represents the portion of a loan’s amortized cost basis that the Company does not expect to collect due to anticipated credit losses over the loan’s contractual life, adjusted for prepayments. The Company measures the expected loan losses on a collective pool basis when similar risk characteristics exist. Models consisting of quantitative and qualitative components are designed for each pool to develop the expected credit loss estimates. Reasonable and supportable forecast periods vary by loan portfolio. The Company has adopted lifetime loss rate models for the portfolios, which use historical loss rates and forecast economic variables to calculate the expected credit losses for each loan pool. When loans do not share similar risk characteristics, the Company evaluates the loan for expected credit losses on an individual basis. Individually assessed loans include nonaccrual and TDR loans. The Company evaluates loans for expected credit losses on an individual basis if, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the original contractual terms of the loan agreement. When the loan is deemed uncollectible, it is the Company’s policy to charge off the uncollectible amount against the allowance for credit losses. The amortized cost of loans held-for-investment excludes accrued interest, which is included in Other assets on the Consolidated Balance Sheet. The Company has made an accounting policy election to not recognize an allowance for credit losses for accrued interest receivables as the Company reverses accrued interest if a loan is on nonaccrual status. The allowance for loan losses is reported separately on the Consolidated Balance Sheet and the Provision for credit losses is reported on the Consolidated Statement of Income. Allowance for Unfunded Credit Commitments — The allowance for unfunded credit commitments includes reserves provided for unfunded loan commitments, letters of credit, standby letters of credit (“SBLCs”) and recourse obligations for loans sold. The Company estimates the allowance for unfunded credit commitments over the contractual period in which the entity is exposed to credit risk via a present contractual obligation to extend credit. Within the period of credit exposure, the Company considers both the likelihood that funding will occur, and the expected credit losses on the commitments that are expected to fund over their estimated lives. The allowance for unfunded credit commitments is maintained at a level believed by management to be sufficient to absorb expected credit losses related to unfunded credit facilities. The determination of the adequacy of the allowance is based on periodic evaluations of the unfunded credit facilities. For all off-balance sheet instruments and commitments, the unfunded credit exposure is calculated using assumptions based on the Company's historical utilization experience in related portfolio segments. Loss rates are applied to the calculated exposure balances to estimate the allowance for unfunded credit commitments. Other elements such as credit risk factors for loans outstanding, terms and expiration dates of the unfunded credit facilities, and other pertinent information are considered to determine the adequacy of the allowance. The allowance for unfunded credit commitments is included in the Accrued expenses and other liabilities on the Consolidated Balance Sheet. Changes to the allowance for unfunded credit commitments are included in Provision for credit losses on the Consolidated Income Statements. Allowance for Credit Losses on Available-for-Sale Debt Securities — For each reporting period, each AFS debt security that is in an unrealized loss position is individually analyzed as part of the Company’s ongoing assessments to determine whether a fair value below the amortized cost basis has resulted from a credit loss or other factors. The initial indicator of impairment is a decline in fair value below the amortized cost of the AFS debt security, excluding accrued interest. The Company first considers whether there is a plan to sell the AFS debt security or it is more-likely-than-not that it will be required to sell the debt security before recovery of the amortized cost. In determining whether an impairment is due to credit related factors, the Company considers the severity of the decline in fair value, nature of the security, the underlying collateral, the financial condition of the issuer, changes in the AFS debt security’s ratings and other qualitative factors. For AFS debt securities that are guaranteed or issued by the U.S. government, or government-sponsored enterprises of high credit quality, the Company applies a zero credit loss assumption. When the Company does not intend to sell the impaired AFS debt security and it is more-likely-than-not that the Company will not be required to sell the impaired debt security prior to recovery of its amortized cost basis, the credit component of the unrealized loss of the impaired AFS debt security is recognized as an allowance for credit losses, with a corresponding Provision for credit losses on the Consolidated Statement of Income and the non-credit component is recognized in Other comprehensive income (loss) on the Consolidated Statement of Comprehensive Income, net of applicable taxes. At each reporting period, the Company increases or decreases the allowance for credit losses as appropriate, while limiting reversals of the allowance for credit losses to the extent of the amounts previously recorded. If the Company intends to sell the impaired debt security or it is more-likely-than-not that the Company will be required to sell the impaired debt security prior to recovering its amortized cost basis, the entire impairment amount is recognized as an adjustment to the debt security’s amortized cost basis, with a corresponding Provision for credit losses on the Consolidated Statement of Income. The amortized cost of the Company’s AFS debt securities excludes accrued interest, which is included in Other assets on the Consolidated Balance Sheet. The Company has made an accounting policy election to not recognize an allowance for credit losses for accrued interest receivables on AFS debt securities as the Company reverses any accrued interest if a debt security is impaired. As each AFS debt security has a unique security structure, where the accrual status is clearly determined when certain criteria listed in the terms are met, the Company assesses the default status of each security as defined by the debt security’s specific security structure. Allowance for Credit Losses on Held-to-Maturity Debt Securities — For each major HTM debt security type, the allowance for credit losses is estimated collectively for groups of securities with similar risk characteristics. For securities that do not share similar risk characteristics, the losses are estimated individually. The Company applies a zero credit loss assumption to certain HTM debt securities, including debt securities that are either guaranteed or issued by the U.S. government or government-sponsored enterprises, are highly rated by nationally recognized statistical rating organizations (“NRSROs”), and have a long history of no credit losses. Any expected credit loss is recorded through the allowance for credit losses on HTM debt securities and deducted from the amortized cost basis of the security, reflecting the net amount the Company expects to collect. The amortized cost of the Company’s HTM debt securities excludes accrued interest, which is included in Other assets on the Consolidated Balance Sheet. The Company has made an accounting policy election not to recognize an allowance for credit losses for accrued interest receivables on HTM debt securities, as the Company reverses any accrued interest against interest income if a debt security is placed on nonaccrual status. The criteria used to place HTM debt securities on nonaccrual are largely similar to those described for loans. Any cash collected on nonaccrual HTM securities is applied to reduce the security’s amortized cost basis and not as interest income. Generally, the Company returns an HTM security to accrual status when all delinquent interest and principal become current under the contractual terms of the security, and the collectability of remaining principal and interest is no longer doubtful. Allowance for Collateral-Dependent Financial Assets — A financial asset is considered collateral-dependent if repayment is expected to be provided substantially through the operation or sale of the collateral. The allowance for credit losses is measured on an individual basis for collateral-dependent financial assets and determined by comparing the fair value of the collateral, minus the cost to sell, to the amortized cost basis of the related financial asset at the reporting date. Other than loans, collateral-dependent financial assets could also include resale agreements. In arrangements which the borrower must continually adjust the collateral securing the asset to reflect changes in the collateral’s fair value (e.g., resale agreements), the Company estimates the expected credit losses on the basis of the unsecured portion of the amortized cost as of the balance sheet date. If the fair value of the collateral is equal to or greater than the amortized cost of the resale agreement, the expected losses would be zero. If the fair value of the collateral is less than the amortized cost of the asset, the expected losses are limited to the difference between the fair value of the collateral and the amortized cost basis of the resale agreement. Allowance for Purchased Credit Deteriorated Assets — Purchased assets that have experienced a more-than-insignificant deterioration in credit quality since origination are deemed Purchased Credit Deteriorated (“PCD”) assets. For PCD HTM debt securities and PCD loans, the company records the allowance for credit losses by grossing up the initial amortized cost, which includes the purchase price and the allowance for credit losses. The expected credit losses of PCD debt securities are measured at the individual security level. The expected credit losses for PCD loans are measured based on the loan’s unpaid principal balance. Under this approach, there is no income statement impact from the acquisition. Subsequent changes in the allowance for credit losses on PCD assets will be recognized in Provision for credit losses on the Consolidated Statement of Income. The non-credit discount or premium will be accreted to interest income based on the effective interest rate on the PCD assets determined after the gross-up for the allowance for credit losses. Allowance for Credit Losses The Company has a current expected credit losses (“CECL”) framework for all financial assets measured at amortized cost and certain off-balance sheet credit exposures. The Company’s allowance for credit losses, which includes both the allowance for loan losses and the allowance for unfunded credit commitments, is calculated with the objective of maintaining a reserve sufficient to absorb losses inherent in our credit portfolios. The measurement of the allowance for credit losses is based on management’s best estimate of lifetime expected credit losses, and periodic evaluation of the loan portfolio, lending-related commitments and other relevant factors. The allowance for credit losses is deducted from the amortized cost basis of a financial asset or a group of financial assets so that the balance sheet reflects the net amount the Company expects to collect. Amortized cost is the principal balance outstanding, net of purchase premiums and discounts, deferred fees and costs, and escrow advances. Subsequent changes in expected credit losses are recognized in net income as a provision for, or a reversal of, credit loss expense. The allowance for credit losses estimation involves procedures to consider the unique risk characteristics of the portfolio segments. The majority of the Company’s credit exposures that share risk characteristics with other similar exposures are collectively evaluated. The collectively evaluated loans include performing loans and unfunded credit commitments. If an exposure does not share risk characteristics with other exposures, the Company generally estimates expected credit losses on an individual basis. Allowance for Collectively Evaluated Loans The allowance for collectively evaluated loans consists of a quantitative component that assesses the different risk factors considered in our models and a qualitative component that considers risk factors external to the models. Each of these components are described below. Quantitative Component — The Company applies quantitative methods to estimate loan losses by considering a variety of factors such as historical loss experience, the current credit quality of the portfolio, and an economic outlook over the life of the loan. The Company incorporates forward-looking information using macroeconomic scenarios which include variables that are considered key drivers of increases and decreases in credit losses. The Company utilizes a probability-weighted, multiple-scenario forecast approach. These scenarios may consist of a base forecast representing management's view of the most likely outcome, combined with downside or upside scenarios reflecting possible worsening or improving economic conditions. The quantitative models incorporate a probability-weighted calculation of these macroeconomic scenarios over a reasonable and supportable forecast period. If the life of loans extends beyond the reasonable and supportable forecast period, the Company will consider historical experience or long-run macroeconomic trends over the remaining lives of the loans to estimate the allowance for loan losses. There were no changes to the overall model methodology in 2022 and 2021 and no changes to the reasonable and supportable forecast period, and reversion to the historical loss experience method in 2022. In 2021, the reasonable and supportable forecast period, key credit risk characteristics and macroeconomic variables to estimate the expected credit losses of the C&I segment were modified due to model enhancement. The following table provides key credit risk characteristics and macroeconomic variables that the Company uses to estimate the expected credit losses by portfolio segment: Portfolio Segment Risk Characteristics Macroeconomic Variables C&I Age (1) , size and spread at origination, and risk rating Volatility Index (“VIX”) and BBB yield to 10-year U.S. Treasury spread (“BBB spread”) (1) CRE, Multifamily residential, and Construction and land Delinquency status, maturity date, collateral value, property type, and geographic location Unemployment rate, Gross Domestic Product (“GDP”), and U.S. Treasury rates Single-family residential and HELOCs FICO score, delinquency status, maturity date, collateral value, and geographic location Unemployment rate, GDP, and home price index Other consumer Historical loss experience Immaterial (2) (1) Due to the model enhancements during the third quarter of 2021, the risk characteristic related to “time-to-maturity” was changed to “age”; while macroeconomic variables related to “unemployment rate and two- and ten-year U.S. Treasury spread” were changed to “VIX and BBB spread” . (2) Macroeconomic variables are included in the qualitative estimate. Allowance for Loan Losses for the Commercial Loan Portfolio The Company’s C&I lifetime loss rate model estimates the loss rate expected over the life of a loan. This loss rate is applied to the amortized cost basis, excluding accrued interest receivable, to determine expected credit losses. The lifetime loss rate model’s reasonable and supportable period spans 11 quarters, thereafter immediately reverting to the historical average loss rate, expressed through the loan-level lifetime loss rate. To generate estimates of expected loss at the loan level for CRE, multifamily residential, and construction and land loans, projected probabilities of default (“PDs”) and loss given defaults (“LGDs”) are applied to the estimated exposure at default, considering the term and payment structure of the loan. The forecast of future economic conditions returns to long-run historical economic trends within the reasonable and supportable period. In order to estimate the life of a loan under both models, the contractual term of the loan is adjusted for estimated prepayments based on historical prepayment experience. Allowance for Loan Losses for the Consumer Loan Portfolio For single-family residential and HELOC loans, projected PDs and LGDs are applied to the estimated exposure at default, considering the term and payment structure of the loan, to generate estimates of expected loss at the loan level. The forecast of future economic conditions returns to long-run historical economic trends after the reasonable and supportable period. To estimate the life of a loan for the single-family residential and HELOC portfolios, the contractual term of the loan is adjusted for estimated prepayments based on historical prepayment experience. For other consumer loans, the Company uses a loss rate approach. Qualitative Component — The Company also considers the following qualitative factors in the determination of the collectively evaluated allowance if these factors have not already been captured by the quantitative model. Such qualitative factors may include, but are not limited to: – loan growth trends; – the volume and severity of past due financial assets, and the volume and severity of adversely classified financial assets; – the Company’s lending policies and procedures, including changes in lending strategies, underwriting standards, collection, write-off and recovery practices; – knowledge of a borrower’s operations; – the quality of the Company’s credit review system; – the experience, ability and depth of the Company’s management and associates; – the effect of other external factors such as the regulatory and legal environments, or changes in technology; – actual and expected changes in international, national, regional, and local economic and business conditions in which the Company operates; and – risk factors in certain industry sectors not captured by the quantitative models. The magnitude of the impact of these factors on the Company’s qualitative assessment of the allowance for credit losses changes from period to period according to changes made by management in its assessment of these factors. The extent to which these factors change may be dependent on whether they are already reflected in quantitative loss estimates during the current period and the extent to which changes in these factors diverge from period to period. While the Company’s allowance methodologies strive to reflect all relevant credit risk factors, there continues to be uncertainty associated with, but not limited to, potential imprecision in the estimation process due to the inherent time lag of obtaining information and normal variations between expected and actual outcomes. The Company may hold additional qualitative reserves that are designed to provide coverage for losses attributable to such risk. Allowance for Individually Evaluated Loans When a loan no longer shares similar risk characteristics with other loans, such as in the case of certain nonaccrual or TDR loans, the Company estimates the allowance for loan losses on an individual loan basis. The allowance for loan losses for individually evaluated loans is measured as the difference between the recorded value of the loans and their fair value. For loans evaluated individually, the Company uses one of three different asset valuation measurement methods: (1) the fair value of collateral less costs to sell; (2) the present value of expected future cash flows; and (3) the loan's observable market price. If an individually evaluated loan is determined to be collateral dependent, the Company applies the fair value of the collateral less costs to sell method. If an individually evaluated loan is determined not to be collateral dependent, the Company uses the present value of future cash flows or the observable market value of the loan. • Collateral-Dependent Loans —
Variable Interest and Voting Interest Entities	Variable Interest and Voting Interest Entities — The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting interest entity or a variable interest entity (“VIE”). The Company first determines whether or not it has variable interests in the entity, which are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. If it is determined that the Company do not have a variable interest in the entity, no further analysis is required and the entity is not consolidated. A VIE is an entity that lacks equity investors or whose equity investors do not have a controlling financial interest in the entity through their equity investments. The Company consolidates a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. For entities that do not meet the definition of a VIE, the entity is considered a voting interest entity. The Company consolidates these entities if it can exert control over the financial and operating policies of an investee, which can occur if the Company has a more than 50% voting interest in the entity.
Investments in Qualified Affordable Housing Partnerships And Investments in Tax Credit and Other Investments, Net	Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net — The Company records the investments in qualified affordable housing partnerships, net, using primarily the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in Income tax expense on the Consolidated Statement of Income . The Company records investments in tax credit and other investments, net, using either the equity method or the measurement alternative method of accounting. The tax credits are recognized on the Consolidated Financial Statements to the extent they are utilized on the Company’s income tax returns in the year the credit arises under the flow-through method of accounting. The investments are evaluated for possible OTTI on an annual basis or on an interim basis, if an event occurs that would trigger potential impairment. OTTI charges and impairment recoveries are recorded within Amortization of tax credit and other investments on the Consolidated Statement of Income. See Note 2 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K for a discussion on the Company’s impairment evaluation and monitoring process of tax credit investments.
Premises and Equipment, Net	Premises and Equipment, Net — The Company’s premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are computed based on the straight-line method over the estimated useful lives of the various classes of assets. The ranges of estimated useful lives for the principal classes of assets are as follows: Premises and Equipment Useful Lives Buildings 25 years Furniture, fixtures and equipment, and building improvements 3 to 7 years Leasehold improvements Term of lease or useful life, whichever is shorter The Company reviews its long-lived assets for impairment annually, or when events or changes in circumstances indicate that the carrying amounts of these assets may not be recoverable. An asset is considered impaired when the fair value, which is the expected undiscounted cash flows over the remaining useful life, is less than the net book value. The excess of the net book value over its fair value is charged as impairment loss to noninterest expense.
Goodwill and Other Intangible Assets	Goodwill — Goodwill represents the excess of the purchase price over the fair value of net assets acquired in an acquisition. Goodwill is tested for impairment on an annual basis as of December 31, or more frequently as events occur or circumstances change that indicate a potential impairment at the reporting unit level. The Company assesses goodwill for impairment at each operating segment level. The Company organizes its operations into three reporting segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other. For information on how the reporting units are identified and the components are aggregated, see Note 17 — Business Segments to the Consolidated Financial Statements in this Form 10-K. The Company has the option to perform a qualitative assessment of goodwill or elect to bypass the qualitative test and proceed directly to a quantitative test. If the Company performs a qualitative assessment of goodwill to test for impairment and concludes it is more likely than not that a reporting unit’s fair value is greater than its carrying value, quantitative tests are not required. If the qualitative analysis indicates that it is more likely than not that a reporting unit’s fair value is less than its carrying value, the Company is required to perform a quantitative assessment to determine if there is goodwill impairment. Factors considered in the qualitative assessments include but are not limited to macroeconomic conditions, industry and market considerations, financial performance of the respective operating segment and other reporting unit specific considerations. The Company uses a combined income and market approach in its quantitative valuation methodologies. A quantitative valuation involves determining the fair value of each reporting unit and comparing the fair value to its corresponding carrying value. Goodwill impairment loss is recorded as a charge to noninterest expense and an adjustment to the carrying value of goodwill. Subsequent reversals of goodwill impairment are not allowed.
Fair Value	Fair Value — The Company records or discloses certain assets and liabilities at fair value. Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date. In determining the fair value of financial instruments, the Company uses various methods including market and income approaches. Based on these approaches, the Company utilizes certain assumptions that market participants would use in pricing an asset or a liability. These inputs can be readily observable, market corroborated or generally unobservable. Fair value measurements are based on the exit price notion that maximizes the use of observable inputs and minimizes the use of unobservable inputs. All inputs, whether observable or unobservable, are ranked in accordance with a prescribed fair value hierarchy that assigns the highest priority to quoted prices in active markets and the lowest priority to prices derived from data lacking transparency. The Company’s assets and liabilities are classified in their entirety based on the lowest level of input that is significant to their fair value measurements. The fair value of the Company’s assets and liabilities is classified and disclosed in one of the following three categories: • Level 1 — Valuation is based on quoted prices for identical instruments traded in active markets. • Level 2 — Valuation is based on quoted prices for similar instruments traded in active markets; quoted prices for identical or similar instruments traded in markets that are not active; and model-derived valuations whose inputs are observable and can be corroborated by market data. • Level 3 — Valuation is based on significant unobservable inputs for determining the fair value of assets or liabilities. These significant unobservable inputs reflect assumptions that market participants may use in pricing the assets or liabilities. For additional information on fair value, see Note 2 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K.
Derivatives	Derivatives — As part of its asset/liability management strategy, the Company uses derivative financial instruments to mitigate exposure to interest rate and foreign currency risks, and to assist customers with their risk management objectives. Derivatives utilized by the Company include primarily swaps, forwards and option contracts. Derivative instruments are included in Other assets or Accrued expenses and other liabilities on the Consolidated Balance Sheet at fair value. The related cash flows are recognized on the Cash flows from operating activities section on the Consolidated Statement of Cash Flows. The Company uses its accounting hedges based on the exposure being hedged as either fair value hedges, cash flow hedges or hedges of the net investments in certain foreign operations. For fair value hedges of interest rate risk, changes in fair value of derivatives are reported within Interest expense on the Consolidated Statement of Income. Changes in fair value of derivatives designated as hedges of the net investments in foreign operations are recorded as a component of AOCI. For cash flow hedges of floating-rate interest payments, the change in the fair value of hedges is recognized in AOCI on the Consolidated Balance Sheet and reclassified to earnings in the same period when the hedged cash flows impact earnings. Reclassified gains and losses of cash flow hedges are recorded in the same line item as the hedged interest payment within Interest expense or as interest receipts within Interest and dividend income on the Consolidated Statements of Income. All derivatives designated as fair value hedges and hedges of the net investments in certain foreign operations are linked to specific hedged items or to groups of specific assets and liabilities on the Consolidated Balance Sheet. Cash flow hedges are linked to the forecasted transactions related to a recognized asset or liability. To qualify as an accounting hedge under the hedge accounting rules (versus an economic hedge where hedge accounting is not sought), a derivative must be highly effective in offsetting the risk designated as being hedged. The Company formally documents its hedging relationships at inception, including the identification of the hedging instruments and the hedged items, as well as its risk management objectives and strategies for undertaking the hedge transaction at the time the derivative contract is executed. Subsequent to inception, on a quarterly basis, the Company assesses whether the derivatives used in hedging transactions are highly effective in offsetting changes in the fair value of the hedged items or the cash flows of attributable hedged risks. Retrospective effectiveness is also assessed, as well as the continued expectation that the hedge will remain effective prospectively. The Company discontinues hedge accounting prospectively when (i) a derivative is no longer highly effective in offsetting changes in fair value; (ii) a derivative expires, or is sold, terminated or exercised, or (iii) the Company determines that designation of a derivative as a hedge is no longer appropriate. If a fair value hedge is discontinued, the derivative will continue to be recorded on the Consolidated Balance Sheet at fair value with changes in fair value recognized on the Consolidated Statement of Income. When the hedged net investment is either sold or substantially liquidated, changes in the fair value of the derivatives are reclassified out of AOCI into Foreign exchange income on the Consolidated Statement of Income. If a cash flow hedge is discontinued but the hedged forecasted cash flow is still expected to happen, the derivative net gain or loss will remain in AOCI and be reclassified into earnings in the periods in which the hedged forecasted cash flow affects earnings. If a cash flow hedge is discontinued and the forecasted cash flow is not expected to happen, the derivative net gain or loss will be reclassified into earnings immediately. The Company also offers various interest rate, foreign currency, and energy commodity derivative products to customers. These transactions are not linked to specific assets or liabilities on the Consolidated Balance Sheet or to forecasted transactions in a hedging relationship and, therefore, do not qualify for hedge accounting. These contracts are recorded at fair value with changes in fair value recorded in Interest rate contracts and other derivative income and Foreign exchange income on the Consolidated Statement of Income. As part of the Company’s loan origination process, from time to time, the Company obtains equity warrants to purchase preferred and/or common stock of public or private companies it provides loans to. These equity warrants are accounted for as derivatives and recorded at fair value in Other assets on the Consolidated Balance Sheet with changes in fair value recorded in Lending fees on the Consolidated Statement of Income. The Company is exposed to counterparty credit risk, which is the risk that counterparties to the derivative contracts do not perform as expected. Valuation of derivative assets and liabilities reflect the value of the instrument inclusive of the nonperformance risk. The Company uses master netting arrangements to mitigate counterparty credit risk in derivative transactions. To the extent the derivatives are subject to master netting arrangements, the Company takes into account the impact of master netting arrangements that allow the Company to settle all derivative contracts executed with the same counterparty on a net basis, and to offset the net derivative position with the related cash and securities collateral. The Company elects to offset derivative transactions with the same counterparty on the Consolidated Balance Sheet when a derivative transaction has a legally enforceable master netting arrangement and when it is eligible for netting under ASC 210-20-45-1, Balance Sheet Offsetting: Netting Derivative Positions on Balance Sheet. Derivative balances and related cash collateral are presented net on the Consolidated Balance Sheet. In addition, the Company applied the Settlement to Market treatment for the cash collateralizing our interest rate and commodity contracts with certain centrally cleared counterparties. As a result, derivative balances with these counterparties are considered settled by the collateral.
Stock-Based Compensation	Stock-Based Compensation — The Company grants time-based restricted stock units (“RSUs”), which include service conditions for vesting. Compensation cost for these time-based awards is based on the quoted market price of the Company’s common stock at the grant date. Compensation costs for certain time-based RSUs that will be settled in cash are adjusted to fair value based on changes in the Company’s stock price up to the settlement date. In addition, the Company grants performance-based RSUs, which contain performance goals and market conditions that are required to be met in order for the awards to vest. Compensation expense for these performance-based RSUs is based on the grant-date fair value considers both performance and market conditions. Subsequently, the Company evaluates the probable outcome of the performance conditions quarterly and makes cumulative adjustments for current and prior periods in compensation expense in the period of change. Market conditions subsequent to the grant date have no impact on the amount of compensation expense the Company will recognize over the life of the award. Compensation cost is amortized on a straight-line basis over the requisite service period for the entire award, which is generally the maximum vesting period of the award. Excess tax benefits and deficiencies on share-based payment awards are recognized within Income tax expense on the Consolidated Statement of Income. As stock-based compensation expense is estimated based on awards ultimately expected to vest, it is reduced by the expense related to awards expected to be forfeited. Forfeitures are estimated at the time of grant and are updated quarterly. If the estimated forfeitures are revised, a cumulative effect of changes in estimated forfeitures for the current and prior periods is recognized in compensation expense in the period of change. Refer to Note 13 — Stock Compensation Plans on the Consolidated Financial Statements in this Form 10-K for additional information. Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Stock-Based Compensation to the Consolidated Financial Statements in this Form 10-K for additional information.
Revenue from Contracts with Customers	Revenue from Contracts with Customers — The Company recognizes two primary types of revenue on its Consolidated Statement of Income: Net interest income and Noninterest income . The Company’s revenue from contracts with customers consists of service charges and fees related to deposit accounts, card income and wealth management fees. These revenue streams as described below comprised 39%, 35% and 29% of total noninterest income for the years ended December 31, 2022, 2021 and 2020, respectively. • Deposit Service Charges and Related Fee Income — The Company offers a range of deposit products to individuals and businesses, which includes savings, money market, checking and time deposit accounts. The deposit account services include ongoing account maintenance, as well as certain optional services such as various in-branch services, automated teller machine/debit card usage, wire transfer services or check orders. In addition, treasury management and business account analysis services are offered to commercial deposit customers. The monthly account fees may vary with the amount of average monthly deposit balances maintained, or the Company may charge a fixed monthly account maintenance fee if certain average balances are not maintained. In addition, each time a deposit customer selects an optional service, the Company may earn transaction fees, generally recognized by the Company at the point when the transaction occurs. For business analysis accounts, commercial deposit customers receive an earnings credit based on their account balance, which can be used to offset the cost of banking and treasury management services. Business analysis accounts that are assessed fees in excess of earnings credits received are typically charged at the end of each month, after all transactions are known and the credits are calculated. Deposit service charge and related fee income are recognized in all operating segments. • Card Income — Card income consists of merchant referral fees and interchange income. For merchant referral fees, the Company provides marketing and referral services to acquiring banks for merchant card processing services and earns variable referral fees based on transaction activities. The Company satisfies its performance obligation over time as the Company identifies, solicits, and refers business customers who are provided such services. The Company receives monthly fees net of consideration it pays to the acquiring bank performing the merchant card processing services. The Company recognizes revenue on a monthly basis when the uncertainty associated with the variable referral fees is resolved after the Company receives monthly statements from the acquiring bank. For interchange income, the Company, as a card issuer, has a stand ready performance obligation to authorize, clear, and settle card transactions. The Company earns or pays interchange fees, which are percentage-based on each transaction, and based on rates published by the corresponding payment network for transactions processed using their network. The Company measures its progress toward the satisfaction of its performance obligation over time as services are rendered, and the Company provides continuous access to this service and settles transactions as its customer or the payment network requires. Interchange income is presented net of direct costs paid to the customer and entities in their distribution chain, which are transaction-based expenses such as rewards program expenses and certain network costs. Revenue is recognized when the net profit is determined by the payment networks at the end of each day. Card income is recognized in consumer and business banking, and commercial banking segments. • Wealth Management Fees — The Company provides investment planning services for customers including wealth management services, asset allocation strategies, portfolio analysis and monitoring, investment strategies and risk management strategies. The fees the Company earns are variable and are generally received monthly. The Company recognizes revenue for the services performed at quarter-end based on actual transaction details received from the broker-dealer with whom the Company engages. Wealth management fees are recognized in both consumer and business banking, and commercial banking segments.
Income Taxes	Income Taxes — The Company files consolidated federal income tax returns, foreign tax returns, and various combined and separate company state tax returns. The calculation of the Company’s income tax provision and related tax accruals requires the use of estimates and judgments. Income tax expense consists of two components: current and deferred. Current tax expense represents taxes to be paid or refunded for the current period and includes income tax expense related to our uncertain tax positions. Income tax liabilities (receivables) represent the estimated amounts due to (due from) the various taxing jurisdictions where the Company has established a tax presence and are reported in Accrued expenses and other liabilities or Other assets on the Consolidated Balance Sheets. Deferred tax expense results from changes in deferred tax assets and liabilities between period, and is determined using the balance sheet method. Under the balance sheet method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax basis of assets and liabilities. Deferred tax assets are also recognized for tax attributes such as net operating loss carryforwards and tax credit carryforwards. Management regularly reviews the Company’s tax positions and deferred tax balances. In concluding whether a valuation allowance is required, the Company considers all available evidence, both positive and negative, based on the more-likely-than-not criteria that such assets will be realized. Factors considered in this analysis include the Company’s ability to generate future taxable income, implement tax-planning strategies (as defined in ASC 740, Income Taxes ) and utilize taxable income from prior carryback years (if such carryback is permitted under the applicable tax law), as well as future reversals of existing taxable temporary differences. To the extent a deferred tax asset is no longer expected more-likely-than-not to be realized, a valuation allowance is established. Deferred tax assets net of deferred tax liabilities are included in Other assets on the Consolidated Balance Sheet. The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken, or expected to be taken, in an income tax return. Uncertain tax positions that meet the more-likely-than-not recognition threshold are measured to determine the amount of benefit to recognize. An uncertain tax position is measured at the largest amount of benefit that management believes has a greater than 50% likelihood of realization upon settlement. Tax benefits not meeting our realization criteria represent unrecognized tax benefits. The Company establishes a liability for potential taxes, interest and penalties related to uncertain tax positions based on facts and circumstances, including the interpretation of existing law, new judicial or regulatory guidance, and the status of tax audits.
Earnings Per Share	Earnings Per Share — Basic EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period, plus any incremental dilutive common share equivalents calculated for outstanding RSUs using the treasury stock method.
Foreign Currency Translation	Foreign Currency Translation — The Company’s foreign subsidiary in China, East West Bank (China) Limited’s functional currency is in Chinese Renminbi (“RMB”). As a result, assets and liabilities of East West Bank (China) Limited are translated, for the consolidation purpose, from its functional currency into U.S. dollar (“USD”) using period-end spot foreign exchange rates. Revenues and expenses of East West Bank (China) Limited are translated, for the purpose of consolidation, from its functional currency into USD at the transaction date foreign exchange rates. The effects of those translation adjustments are reported in the Foreign currency translation adjustments account within Other comprehensive income (loss) on the Consolidated Statement of Comprehensive Income, net of any related hedged effects. For transactions that are denominated in a currency other than the functional currency, including transactions denominated in the local currencies of foreign operations that use the USD as their functional currency, the effects of changes in exchange rates are reported in Foreign exchange income on the Consolidated Statement of Income.
Accounting Pronouncements Adopted in 2022 and 2023	Accounting Pronouncements Adopted in 2022 Standard Required Date of Adoption Description Effect on Financial Statements ASU 2020-06, Debt — Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity Effective for fiscal years beginning after December 15, 2021. ASU 2020-06 simplifies the accounting for convertible instruments and its application of the derivatives scope exception for contracts in its own equity by (1) eliminating accounting models for convertible financial instruments with cash conversion and beneficial conversion features, (2) removing certain required settlement conditions for a contract in an entity’s own equity to qualify for the derivative scope exception, and (3) simplifying the method used for computing EPS. The Company adopted this standard on January 1, 2022. The adoption of this guidance did not have an impact on the Company’s Consolidated Financial Statements. ASU 2021-04, Earnings Per Share (Topic 260), Debt — Modification and Extinguishments (Subtopic 470-50), Compensation — Stock Compensation (Topic 718), and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modification or Exchange of Freestanding Equity-Classified Written Call Options Effective for fiscal years beginning after December 15, 2021. ASU 2021-04 provides clarification and reduces diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options (for example, warrants) that remain equity classified after modification or exchange. The Company adopted this standard on January 1, 2022. The adoption of this guidance did not have an impact on the Company’s Consolidated Financial Statements. ASU 2021-05, Lessors — Certain Leases with Variable Lease Payments Effective for fiscal years beginning after December 15, 2021. ASU 2021-05 requires lessors to classify leases as operating leases if they have variable lease payments that do not depend on an index or rate and would have selling losses if they were classified as sales-type or direct financing leases. The Company adopted this standard on January 1, 2022. The adoption of this guidance did not have an impact on the Company’s Consolidated Financial Statements. ASU 2021-10, Government Assistance (Topic 832) — Disclosures by Business Entities about Government Assistance Effective for fiscal years beginning after December 15, 2021. ASU 2021-10 increases the transparency of government assistance including the disclosure of (1) the types of assistance, (2) an entity’s accounting for the assistance, and (3) the effect of the assistance on an entity’s financial statements. The Company adopted this standard on January 1, 2022. The adoption of this guidance did not have an impact on the Company’s Consolidated Financial Statements. ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848 Effective for all entities from the date of issuance on December 21, 2022. ASU 2022-06 extends the sunset date of ASC Topic 848, “Reference Rate Reform” from December 31, 2022 to December 31, 2024, after which entities will no longer be permitted to apply the relief in Topic 848. The Company adopted this guidance upon issuance of the ASU 2022-06. The adoption of this guidance has not and is currently not expected to have a material impact on the Company’s Financial Statements. The Company continues to evaluate transactions or contract modifications occurring as a result of reference rate reform and determine whether to apply the optional guidance on an ongoing basis. Accounting Pronouncements Adopted in 2023 Standard Required Date of Adoption Description Effect on Financial Statements ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and the Vintage Disclosures January 1, 2023 ASU 2022-02 eliminates the troubled debt restructuring (“TDRs”) accounting model for creditors and instead requires companies to apply the loan refinancing and restructuring guidance to determine whether a modification made to a borrower results in a new loan or a continuation of an existing loan. In addition, companies are no longer required to use a discounted cash flow method to measure the allowance for credit losses for certain TDRs and instead allows for the use of an expected loss approach for all loans. The guidance also introduces new disclosure requirements related to restructuring of financing receivables made to borrowers experiencing financial difficulty, and amends vintage disclosures to require current-period gross write-off by year of origination. The guidance should be applied on a prospective basis except for amendments related to recognition and measurement of TDRs, where a modified retrospective transition method is optional. The Company adopted ASU 2022-02 using a prospective basis except for the guidance related to the recognition and measurement of TDRs, where it was adopted on a modified retrospective transition method. The adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements.
Balance Sheet Offsetting	The Company’s resale and repurchase agreements are transacted under legally enforceable master repurchase agreements that, in the event of default by the counterparty, provide the Company the right to liquidate securities held and to offset receivables and payables with the same counterparty. The Company nets resale and repurchase transactions with the same counterparty on the Consolidated Balance Sheet when it has a legally enforceable master netting agreement and the transactions are eligible for netting under ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements
Credit Quality Indicators	Credit Quality Indicators All loans are subject to the Company’s credit review and monitoring process. For the commercial loan portfolio, loans are risk rated based on an analysis of the borrower’s current payment performance or delinquency, repayment sources, financial and liquidity factors, including industry and geographic considerations. For the consumer loan portfolio, payment performance or delinquency is typically the driving indicator for risk ratings. The Company utilizes internal credit risk ratings to assign each individual loan a risk rating of 1 through 10: • Pass — loans risk rated 1 through 5 are assigned an internal risk rating category of “Pass.” Loans risk rated 1 are typically loans fully secured by cash. Pass loans have sufficient sources of repayment to repay the loan in full, in accordance with all terms and conditions. • Special mention — loans assigned a risk rating of 6 have potential weaknesses that warrant closer attention by management; these are assigned an internal risk rating category of “Special Mention.” • Substandard — loans assigned a risk rating of 7 or 8 have well-defined weaknesses that may jeopardize the full and timely repayment of the loan; these are assigned an internal risk rating category of “Substandard.” • Doubtful — loans assigned a risk rating of 9 have insufficient sources of repayment and a high probability of loss; these are assigned an internal risk rating category of “Doubtful.” • Loss — loans assigned a risk rating of 10 are uncollectible and of such little value that they are no longer considered bankable assets; these are assigned an internal risk rating category of “Loss.” Loan exposures categorized as criticized consist of special mention, substandard, doubtful and loss categories. The Company reviews the internal risk ratings of its loan portfolio on a regular basis, and adjusts the ratings based on changes in the borrowers’ financial status and the collectability of the loans.
Variable Interest Entity (VIEs)	Variable Interest Entities The majority of both the investments in affordable housing partnerships and tax credit and other investments discussed above are VIEs where the Company is a limited partner in these partnerships, and an unrelated third party is typically the general partner or managing member who has control over the significant activities of these investments. While the Company’s interest in some of the investments may exceed 50% of the outstanding equity interests, the Company does not consolidate these structures due to the general partner’s or managing member’s ability to manage the entity, which is indicative of the general partner’s or managing member’s power over the entity. The Company’s maximum exposure to loss in connection with these partnerships consists of the unamortized investment balance and any tax credits claimed that may become subject to recapture. Special purpose entities formed in connection with securitization transactions are generally considered VIEs. A CLO is a VIE that purchases a pool of assets consisting primarily of non-investment grade corporate loans, and issues multiple tranches of notes to investors to fund the asset purchases and pay upfront expenses associated with forming the CLO. The Company served as the collateral manager of a CLO that closed in 2019 and subsequently reassigned its portfolio manager responsibilities in 2020. The Company retained the top three investment grade-rated tranches issued by the CLO, for which the total carrying amount was $284.3 million and $291.7 million as of December 31, 2022 and 2021 , respectively.
Litigation	Litigation — The Company is a party to various legal actions arising in the normal course of doing business. In accordance with ASC 450, Contingencies , the Company accrues reserves for outstanding lawsuits, claims and proceedings when a loss contingency is probable and can be reasonably estimated. The Company estimates the amount of loss contingencies using current available information from legal proceedings, advice from legal counsel and available insurance coverage. Due to the inherent subjectivity of the assessments and unpredictability of the outcomes of the legal proceedings, any amounts accrued or included in this aggregate amount may not represent the ultimate loss to the Company from the legal proceedings in question. Thus, the Company’s exposure and ultimate losses may be higher, and possibly significantly more than the amounts accrued.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Schedule of Useful Lives for Premises and Equipment	The ranges of estimated useful lives for the principal classes of assets are as follows: Premises and Equipment Useful Lives Buildings 25 years Furniture, fixtures and equipment, and building improvements 3 to 7 years Leasehold improvements Term of lease or useful life, whichever is shorter
Schedule of New Accounting Pronouncements Adopted and Recent Accounting Pronouncements	Accounting Pronouncements Adopted in 2022 Standard Required Date of Adoption Description Effect on Financial Statements ASU 2020-06, Debt — Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity Effective for fiscal years beginning after December 15, 2021. ASU 2020-06 simplifies the accounting for convertible instruments and its application of the derivatives scope exception for contracts in its own equity by (1) eliminating accounting models for convertible financial instruments with cash conversion and beneficial conversion features, (2) removing certain required settlement conditions for a contract in an entity’s own equity to qualify for the derivative scope exception, and (3) simplifying the method used for computing EPS. The Company adopted this standard on January 1, 2022. The adoption of this guidance did not have an impact on the Company’s Consolidated Financial Statements. ASU 2021-04, Earnings Per Share (Topic 260), Debt — Modification and Extinguishments (Subtopic 470-50), Compensation — Stock Compensation (Topic 718), and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modification or Exchange of Freestanding Equity-Classified Written Call Options Effective for fiscal years beginning after December 15, 2021. ASU 2021-04 provides clarification and reduces diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options (for example, warrants) that remain equity classified after modification or exchange. The Company adopted this standard on January 1, 2022. The adoption of this guidance did not have an impact on the Company’s Consolidated Financial Statements. ASU 2021-05, Lessors — Certain Leases with Variable Lease Payments Effective for fiscal years beginning after December 15, 2021. ASU 2021-05 requires lessors to classify leases as operating leases if they have variable lease payments that do not depend on an index or rate and would have selling losses if they were classified as sales-type or direct financing leases. The Company adopted this standard on January 1, 2022. The adoption of this guidance did not have an impact on the Company’s Consolidated Financial Statements. ASU 2021-10, Government Assistance (Topic 832) — Disclosures by Business Entities about Government Assistance Effective for fiscal years beginning after December 15, 2021. ASU 2021-10 increases the transparency of government assistance including the disclosure of (1) the types of assistance, (2) an entity’s accounting for the assistance, and (3) the effect of the assistance on an entity’s financial statements. The Company adopted this standard on January 1, 2022. The adoption of this guidance did not have an impact on the Company’s Consolidated Financial Statements. ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848 Effective for all entities from the date of issuance on December 21, 2022. ASU 2022-06 extends the sunset date of ASC Topic 848, “Reference Rate Reform” from December 31, 2022 to December 31, 2024, after which entities will no longer be permitted to apply the relief in Topic 848. The Company adopted this guidance upon issuance of the ASU 2022-06. The adoption of this guidance has not and is currently not expected to have a material impact on the Company’s Financial Statements. The Company continues to evaluate transactions or contract modifications occurring as a result of reference rate reform and determine whether to apply the optional guidance on an ongoing basis. Accounting Pronouncements Adopted in 2023 Standard Required Date of Adoption Description Effect on Financial Statements ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and the Vintage Disclosures January 1, 2023 ASU 2022-02 eliminates the troubled debt restructuring (“TDRs”) accounting model for creditors and instead requires companies to apply the loan refinancing and restructuring guidance to determine whether a modification made to a borrower results in a new loan or a continuation of an existing loan. In addition, companies are no longer required to use a discounted cash flow method to measure the allowance for credit losses for certain TDRs and instead allows for the use of an expected loss approach for all loans. The guidance also introduces new disclosure requirements related to restructuring of financing receivables made to borrowers experiencing financial difficulty, and amends vintage disclosures to require current-period gross write-off by year of origination. The guidance should be applied on a prospective basis except for amendments related to recognition and measurement of TDRs, where a modified retrospective transition method is optional. The Company adopted ASU 2022-02 using a prospective basis except for the guidance related to the recognition and measurement of TDRs, where it was adopted on a modified retrospective transition method. The adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements.

Fair Value Measurement and Fa_2

Fair Value Measurement and Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Schedule of Increase (Decrease) in Fair Value of Assets for which a Nonrecurring Fair Value Adjustment Has Been Recognized	The following table presents the increase (decrease) in the fair value of certain assets held at the end of the respective reporting periods, for which a nonrecurring fair value adjustment was recognized for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Loans held-for-investment: Commercial: C&I $ (25,996) $ (9,580) $ (48,154) CRE: CRE (7,098) (10,231) (11,289) Total commercial (33,094) (19,811) (59,443) Consumer: Residential mortgage: HELOCs 166 (4) (175) Other consumer — — 2,491 Total consumer $ 166 $ (4) $ 2,316 Total loans held-for-investment $ (32,928) $ (19,815) $ (57,127) Investments in tax credit and other investments, net $ 469 $ 877 $ (3,868) OREO $ — $ — $ (3,680) Other nonperforming assets $ (6,861) $ (4,241) $ —
Schedule of the Carrying and Fair Value Estimates Per the Fair Value Hierarchy of Financial Instruments Measured on a Nonrecurring Basis	The following tables present the fair value estimates for financial instruments as of December 31, 2022 and 2021, excluding financial instruments recorded at fair value on a recurring basis as they are included in the tables presented elsewhere in this Note. The carrying amounts in the following tables are recorded on the Consolidated Balance Sheet under the indicated captions, except for accrued interest receivable, restricted equity securities, at cost, and mortgage servicing rights that are included in Other assets , and accrued interest payable which is included in Accrued expenses and other liabilities . These financial assets and liabilities are measured on an amortized cost basis on the Company’s Consolidated Balance Sheet. ($ in thousands) December 31, 2022 Carrying Level 1 Level 2 Level 3 Estimated Financial assets: Cash and cash equivalents $ 3,481,784 $ 3,481,784 $ — $ — $ 3,481,784 Interest-bearing deposits with banks $ 139,021 $ — $ 139,021 $ — $ 139,021 Resale agreements $ 792,192 $ — $ 693,656 $ — $ 693,656 HTM debt securities $ 3,001,868 $ 471,469 $ 1,983,702 $ — $ 2,455,171 Restricted equity securities, at cost $ 78,624 $ — $ 78,624 $ — $ 78,624 Loans held-for-sale $ 25,644 $ — $ 25,644 $ — $ 25,644 Loans held-for-investment, net $ 47,606,785 $ — $ — $ 46,670,690 $ 46,670,690 Mortgage servicing rights $ 6,235 $ — $ — $ 10,917 $ 10,917 Accrued interest receivable $ 263,430 $ — $ 263,430 $ 263,430 Financial liabilities: Demand, checking, savings and money market deposits $ 42,637,316 $ — $ 42,637,316 $ — $ 42,637,316 Time deposits $ 13,330,533 $ — $ 13,228,777 $ — $ 13,228,777 Repurchase agreements $ 300,000 $ — $ 304,097 $ — $ 304,097 Long-term debt $ 147,950 $ — $ 143,483 $ — $ 143,483 Accrued interest payable $ 37,198 $ — $ 37,198 $ — $ 37,198 ($ in thousands) December 31, 2021 Carrying Level 1 Level 2 Level 3 Estimated Financial assets: Cash and cash equivalents $ 3,912,935 $ 3,912,935 $ — $ — $ 3,912,935 Interest-bearing deposits with banks $ 736,492 $ — $ 736,492 $ — $ 736,492 Resale agreements $ 2,353,503 $ — $ 2,335,901 $ — $ 2,335,901 Restricted equity securities, at cost $ 77,434 $ — $ 77,434 $ — $ 77,434 Loans held-for-sale $ 635 $ — $ 635 $ — $ 635 Loans held-for-investment, net $ 41,152,202 $ — $ — $ 41,199,599 $ 41,199,599 Mortgage servicing rights $ 5,706 $ — $ — $ 9,104 $ 9,104 Accrued interest receivable $ 159,833 $ — $ 159,833 $ — $ 159,833 Financial liabilities: Demand, checking, savings and money market deposits $ 45,388,550 $ — $ 45,388,550 $ — $ 45,388,550 Time deposits $ 7,961,982 $ — $ 7,966,116 $ — $ 7,966,116 FHLB advances $ 249,331 $ — $ 250,372 $ — $ 250,372 Repurchase agreements $ 300,000 $ — $ 310,525 $ — $ 310,525 Long-term debt $ 147,658 $ — $ 151,020 $ — $ 151,020 Accrued interest payable $ 11,435 $ — $ 11,435 $ — $ 11,435
Schedule of Financial Assets (Liabilities) Measured at Fair Value on a Recurring Basis	The following tables present financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2022 and 2021: ($ in thousands) Assets and Liabilities Measured at Fair Value on a Recurring Basis Quoted Prices in Significant Significant Total AFS debt securities: U.S. Treasury securities $ 606,203 $ — $ — $ 606,203 U.S. government agency and U.S. government sponsored enterprise debt securities — 461,607 — 461,607 U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities — 500,269 — 500,269 Residential mortgage-backed securities — 1,762,195 — 1,762,195 Municipal securities — 257,099 — 257,099 Non-agency mortgage-backed securities: Commercial mortgage-backed securities — 398,329 — 398,329 Residential mortgage-backed securities — 649,224 — 649,224 Corporate debt securities — 526,274 — 526,274 Foreign government bonds — 227,053 — 227,053 Asset-backed securities — 49,076 — 49,076 Collateralized loan obligations (“CLOs”) — 597,664 — 597,664 Total AFS debt securities $ 606,203 $ 5,428,790 $ — $ 6,034,993 Investments in tax credit and other investments: Equity securities $ 19,777 $ 4,177 $ — $ 23,954 Total investments in tax credit and other investments $ 19,777 $ 4,177 $ — $ 23,954 Derivative assets: Interest rate contracts $ — $ 440,283 $ — $ 440,283 Foreign exchange contracts — 53,109 — 53,109 Equity contracts — — 323 323 Commodity contracts — 261,613 — 261,613 Gross derivative assets $ — $ 755,005 $ 323 $ 755,328 Netting adjustments (1) $ — $ (614,783) $ — $ (614,783) Net derivative assets $ — $ 140,222 $ 323 $ 140,545 Derivative liabilities: Interest rate contracts $ — $ 584,516 $ — $ 584,516 Foreign exchange contracts — 44,117 — 44,117 Credit contracts — 23 — 23 Commodity contracts — 258,608 — 258,608 Gross derivative liabilities $ — $ 887,264 $ — $ 887,264 Netting adjustments (1) $ — $ (242,745) $ — $ (242,745) Net derivative liabilities $ — $ 644,519 $ — $ 644,519 ($ in thousands) Assets and Liabilities Measured at Fair Value on a Recurring Basis Quoted Prices in Significant Significant Total AFS debt securities: U.S. Treasury securities $ 1,032,681 $ — $ — $ 1,032,681 U.S. government agency and U.S. government sponsored enterprise debt securities — 1,301,971 — 1,301,971 U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities — 1,228,980 — 1,228,980 Residential mortgage-backed securities — 2,928,283 — 2,928,283 Municipal securities — 523,158 — 523,158 Non-agency mortgage-backed securities: Commercial mortgage-backed securities — 496,443 — 496,443 Residential mortgage-backed securities — 881,931 — 881,931 Corporate debt securities — 649,665 — 649,665 Foreign government bonds — 257,733 — 257,733 Asset-backed securities — 74,558 — 74,558 CLOs — 589,950 — 589,950 Total AFS debt securities $ 1,032,681 $ 8,932,672 $ — $ 9,965,353 Investments in tax credit and other investments: Equity securities $ 22,130 $ 4,474 $ — $ 26,604 Total investments in tax credit and other investments $ 22,130 $ 4,474 $ — $ 26,604 Derivative assets: Interest rate contracts $ — $ 240,222 $ — $ 240,222 Foreign exchange contracts — 21,033 — 21,033 Equity contracts — 5 215 220 Commodity contracts — 222,709 — 222,709 Gross derivative assets $ — $ 483,969 $ 215 $ 484,184 Netting adjustments (1) $ — $ (100,953) $ — $ (100,953) Net derivative assets $ — $ 383,016 $ 215 $ 383,231 Derivative liabilities: Interest rate contracts $ — $ 180,130 $ — $ 180,130 Foreign exchange contracts — 15,333 — 15,333 Credit contracts — 141 — 141 Commodity contracts — 194,567 — 194,567 Gross derivative liabilities $ — $ 390,171 $ — $ 390,171 Netting adjustments (1) $ — $ (232,727) $ — $ (232,727) Net derivative liabilities $ — $ 157,444 $ — $ 157,444 (1) Represents balance sheet netting of derivative assets and liabilities and related cash collateral under master netting agreements or similar agreements. See Note 5 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.
Reconciliation of the Beginning and Ending Balances of Equity Contracts Measured at Fair Value on a Recurring Basis using Significant Unobservable Inputs (Level 3)	The following table provides a reconciliation of the beginning and ending balances of these equity contracts for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Equity contracts Beginning balance $ 215 $ 273 $ 421 Total gains included in earnings (1) 17 32 8,225 Issuances 91 12 — Settlements — (96) — Transfers out of Level 3 (2) — (6) (8,373) Ending balance $ 323 $ 215 $ 273 (1) Includes both realized and unrealized gain (losses) recorded in Lending fees on the Consolidated Statement of Income. The unrealized gains (losses) were $17 thousand, $(44) thousand, and $8.2 million for the years ended December 31, 2022, 2021 and 2020, respectively.
Schedule of Quantitative Information About Significant Unobservable Inputs Used in the Valuation of level 3 Fair Value Measurements	The following table presents quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements as of December 31, 2022 and 2021. The significant unobservable inputs presented in the table below are those that the Company considers significant to the fair value of the Level 3 assets. The Company considers unobservable inputs to be significant if, by their exclusion, the fair value of the Level 3 assets would be impacted by a predetermined percentage change. ($ in thousands) Fair Value Valuation Unobservable Range of Weighted- Average of Inputs (1) December 31, 2022 Derivative assets: Equity contracts $ 323 Black-Scholes option pricing model Equity volatility 42% — 60% 54% Liquidity discount 47% 47% December 31, 2021 Derivative assets: Equity contracts $ 215 Black-Scholes option pricing model Equity volatility 44% — 54% 49% Liquidity discount 47% 47% (1) Weighted-average of inputs is calculated based on the fair value of equity contracts as of December 31, 2022 and 2021. The following table presents the quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements that are measured on a nonrecurring basis as of December 31, 2022 and 2021: ($ in thousands) Fair Value Valuation Unobservable Range of Weighted- (1) December 31, 2022 Loans held-for-investment $ 23,322 Discounted cash flows Discount 4% — 6% 4% $ 17,912 Fair value of collateral Discount 15% — 75% 37% $ 31,380 Fair value of property Selling cost 8% 8% December 31, 2021 Loans held-for-investment $ 64,919 Discounted cash flows Discount 4% — 15% 7% $ 38,537 Fair value of collateral Discount 15% — 75% 41% $ 23,528 Fair value of property Selling cost 8% 8% (1) Weighted-average of inputs is based on the relative fair value of the respective assets as of December 31, 2022 and 2021.
Schedule of Carrying Amounts of Assets That Were Still Held and Had Fair Value Changes Measured on a Nonrecurring Basis	The following tables present the carrying amounts of assets that were still held and had fair value adjustments measured on a nonrecurring basis as of December 31, 2022 and 2021: ($ in thousands) Assets Measured at Fair Value on a Nonrecurring Basis Quoted Prices in Significant Significant Fair Value Measurements Loans held-for-investment: Commercial: C&I $ — $ — $ 40,011 $ 40,011 CRE: CRE — — 31,380 31,380 Total commercial — — 71,391 71,391 Consumer: Residential mortgage: HELOCs — — 1,223 1,223 Total consumer — — 1,223 1,223 Total loans held-for-investment $ — $ — $ 72,614 $ 72,614 ($ in thousands) Assets Measured at Fair Value on a Nonrecurring Basis Quoted Prices in Significant Significant Fair Value Measurements Loans held-for-investment: Commercial: C&I $ — $ — $ 102,349 $ 102,349 CRE: CRE — — 21,891 21,891 Total commercial — — 124,240 124,240 Consumer: Residential mortgage: HELOCs — — 2,744 2,744 Total consumer — — 2,744 2,744 Total loans held-for-investment $ — $ — $ 126,984 $ 126,984 Other nonperforming assets $ 391 $ — $ — $ 391

Assets Purchased under Resale_2

Assets Purchased under Resale Agreements and Sold under Repurchase Agreements (Tables)	12 Months Ended
	Dec. 31, 2022
RESALE AND REPURCHASE AGREEMENTS
Schedule of Balance Sheet Offsetting for Resale Agreements and Repurchase Agreements	The following tables present the resale and repurchase agreements included on the Consolidated Balance Sheet as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Assets Gross Amounts Gross Amounts Net Amounts of Gross Amounts Net Collateral Received Resale agreements $ 792,192 $ — $ 792,192 $ (701,790) (1) $ 90,402 Liabilities Gross Amounts Gross Amounts Net Amounts of Gross Amounts Not Offset on the Net Collateral Pledged Repurchase agreements $ 300,000 $ — $ 300,000 $ (300,000) (2) $ — ($ in thousands) December 31, 2021 Assets Gross Amounts Gross Amounts Net Amounts of Gross Amounts Net Collateral Received Resale agreements $ 2,353,503 $ — $ 2,353,503 $ (2,327,687) (1) $ 25,816 Liabilities Gross Amounts Gross Amounts Net Amounts of Gross Amounts Net Collateral Pledged Repurchase agreements $ 300,000 $ — $ 300,000 $ (300,000) (2) $ — (1) Represents the fair value of assets the Company has received under resale agreements, limited for table presentation purposes to the amount of the recognized asset due from each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above. (2) Represents the fair value of assets the Company has pledged under repurchase agreements, limited for table presentation purposes to the amount of the recognized liability due to each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above.

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Available-for-Sale	The following tables present the amortized cost, gross unrealized gains and losses, and fair value by major categories of AFS and HTM debt securities as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Amortized Gross Gross Fair AFS debt securities: U.S. Treasury securities $ 676,306 $ — $ (70,103) $ 606,203 U.S. government agency and U.S. government-sponsored enterprise debt securities 517,806 67 (56,266) 461,607 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 577,392 — (77,123) 500,269 Residential mortgage-backed securities 2,011,054 41 (248,900) 1,762,195 Municipal securities: 303,884 3 (46,788) 257,099 Non-agency mortgage-backed securities: Commercial mortgage-backed securities 447,512 213 (49,396) 398,329 Residential mortgage-backed securities 762,202 — (112,978) 649,224 Corporate debt securities 673,502 — (147,228) 526,274 Foreign government bonds 241,165 174 (14,286) 227,053 Asset-backed securities 51,152 — (2,076) 49,076 CLOs 617,250 — (19,586) 597,664 Total AFS debt securities 6,879,225 498 (844,730) 6,034,993 HTM debt securities U.S. Treasury securities 524,081 — (52,612) 471,469 U.S. government agency and U.S. government-sponsored enterprise debt securities 998,972 — (209,560) 789,412 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 506,965 — (98,566) 408,399 Residential mortgage-backed securities 782,141 — (148,230) 633,911 Municipal securities 189,709 — (37,729) 151,980 Total HTM debt securities 3,001,868 — (546,697) 2,455,171 Total debt securities $ 9,881,093 $ 498 $ (1,391,427) $ 8,490,164 ($ in thousands) December 31, 2021 Amortized Gross Gross Fair AFS debt securities: U.S. Treasury securities $ 1,049,238 $ 130 $ (16,687) $ 1,032,681 U.S. government agency and U.S. government-sponsored enterprise debt securities 1,333,984 2,697 (34,710) 1,301,971 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 1,242,043 15,791 (28,854) 1,228,980 Residential mortgage-backed securities 2,968,789 8,629 (49,135) 2,928,283 Municipal securities 519,381 10,065 (6,288) 523,158 Non-agency mortgage-backed securities: Commercial mortgage-backed securities 498,920 3,000 (5,477) 496,443 Residential mortgage-backed securities 889,937 971 (8,977) 881,931 Corporate debt securities 657,516 8,738 (16,589) 649,665 Foreign government bonds 260,447 767 (3,481) 257,733 Asset-backed securities 74,674 185 (301) 74,558 CLOs 592,250 52 (2,352) 589,950 Total AFS debt securities $ 10,087,179 $ 51,025 $ (172,851) $ 9,965,353
Debt Securities, Held-to-Maturity	The following tables present the amortized cost, gross unrealized gains and losses, and fair value by major categories of AFS and HTM debt securities as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Amortized Gross Gross Fair AFS debt securities: U.S. Treasury securities $ 676,306 $ — $ (70,103) $ 606,203 U.S. government agency and U.S. government-sponsored enterprise debt securities 517,806 67 (56,266) 461,607 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 577,392 — (77,123) 500,269 Residential mortgage-backed securities 2,011,054 41 (248,900) 1,762,195 Municipal securities: 303,884 3 (46,788) 257,099 Non-agency mortgage-backed securities: Commercial mortgage-backed securities 447,512 213 (49,396) 398,329 Residential mortgage-backed securities 762,202 — (112,978) 649,224 Corporate debt securities 673,502 — (147,228) 526,274 Foreign government bonds 241,165 174 (14,286) 227,053 Asset-backed securities 51,152 — (2,076) 49,076 CLOs 617,250 — (19,586) 597,664 Total AFS debt securities 6,879,225 498 (844,730) 6,034,993 HTM debt securities U.S. Treasury securities 524,081 — (52,612) 471,469 U.S. government agency and U.S. government-sponsored enterprise debt securities 998,972 — (209,560) 789,412 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 506,965 — (98,566) 408,399 Residential mortgage-backed securities 782,141 — (148,230) 633,911 Municipal securities 189,709 — (37,729) 151,980 Total HTM debt securities 3,001,868 — (546,697) 2,455,171 Total debt securities $ 9,881,093 $ 498 $ (1,391,427) $ 8,490,164 ($ in thousands) December 31, 2021 Amortized Gross Gross Fair AFS debt securities: U.S. Treasury securities $ 1,049,238 $ 130 $ (16,687) $ 1,032,681 U.S. government agency and U.S. government-sponsored enterprise debt securities 1,333,984 2,697 (34,710) 1,301,971 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 1,242,043 15,791 (28,854) 1,228,980 Residential mortgage-backed securities 2,968,789 8,629 (49,135) 2,928,283 Municipal securities 519,381 10,065 (6,288) 523,158 Non-agency mortgage-backed securities: Commercial mortgage-backed securities 498,920 3,000 (5,477) 496,443 Residential mortgage-backed securities 889,937 971 (8,977) 881,931 Corporate debt securities 657,516 8,738 (16,589) 649,665 Foreign government bonds 260,447 767 (3,481) 257,733 Asset-backed securities 74,674 185 (301) 74,558 CLOs 592,250 52 (2,352) 589,950 Total AFS debt securities $ 10,087,179 $ 51,025 $ (172,851) $ 9,965,353
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value	The following tables present the fair value and the associated gross unrealized losses of the Company’s AFS debt securities, aggregated by investment category and the length of time that the securities have been in a continuous unrealized loss position, as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Less Than 12 Months 12 Months or More Total Fair Gross Fair Gross Fair Gross AFS debt securities: U.S. Treasury securities $ 131,843 $ (8,761) $ 474,360 $ (61,342) $ 606,203 $ (70,103) U.S. government agency and U.S. government-sponsored enterprise debt securities 97,403 (6,902) 214,136 (49,364) 311,539 (56,266) U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 252,144 (30,029) 248,125 (47,094) 500,269 (77,123) Residential mortgage-backed securities 307,536 (20,346) 1,448,658 (228,554) 1,756,194 (248,900) Municipal securities 95,655 (10,194) 159,439 (36,594) 255,094 (46,788) Non-agency mortgage-backed securities: Commercial mortgage-backed securities 106,184 (3,309) 282,301 (46,087) 388,485 (49,396) Residential mortgage-backed securities 22,715 (1,546) 626,509 (111,432) 649,224 (112,978) Corporate debt securities 173,595 (17,907) 352,679 (129,321) 526,274 (147,228) Foreign government bonds 107,576 (429) 36,143 (13,857) 143,719 (14,286) Asset-backed securities 12,450 (524) 36,626 (1,552) 49,076 (2,076) CLOs 144,365 (4,735) 453,299 (14,851) 597,664 (19,586) Total AFS debt securities $ 1,451,466 $ (104,682) $ 4,332,275 $ (740,048) $ 5,783,741 $ (844,730) ($ in thousands) December 31, 2021 Less Than 12 Months 12 Months or More Total Fair Gross Fair Gross Fair Gross AFS debt securities: U.S. Treasury securities $ 935,776 $ (14,689) $ 47,881 $ (1,998) $ 983,657 $ (16,687) U.S. government agency and U.S. government-sponsored enterprise debt securities 773,647 (18,000) 402,907 (16,710) 1,176,554 (34,710) U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities: Commercial mortgage-backed securities 440,734 (13,589) 257,745 (15,265) 698,479 (28,854) Residential mortgage-backed securities 2,138,542 (37,691) 330,522 (11,444) 2,469,064 (49,135) Municipal securities 177,065 (5,682) 17,003 (606) 194,068 (6,288) Non-agency mortgage-backed securities: Commercial mortgage-backed securities 301,925 (4,158) 40,013 (1,319) 341,938 (5,477) Residential mortgage-backed securities 707,792 (8,966) 6,431 (11) 714,223 (8,977) Corporate debt securities 183,916 (3,084) 251,494 (13,505) 435,410 (16,589) Foreign government bonds 27,097 (5) 133,279 (3,476) 160,376 (3,481) Asset-backed securities 24,885 (301) — — 24,885 (301) CLOs 221,586 (64) 291,712 (2,288) 513,298 (2,352) Total AFS debt securities $ 5,932,965 $ (106,229) $ 1,778,987 $ (66,622) $ 7,711,952 $ (172,851)
Schedule of the Gross Realized Gains and Tax Expense Related to the Sales of AFS Debt Securities	The following table presents gross realized gains and tax expense related to the sales of AFS debt securities for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Gross realized gains $ 1,306 $ 1,568 $ 12,299 Related tax expense $ 386 $ 464 $ 3,636
Schedule of Composition of Interest Income on Debt Securities	The following table presents the composition of interest income on debt securities for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Taxable interest $ 179,720 $ 131,985 $ 75,590 Nontaxable interest 19,186 11,998 6,963 Total interest income on debt securities $ 198,906 $ 143,983 $ 82,553
Schedule of Contractual Maturities of AFS and HTM Debt Securities	The following tables present the contractual maturities, amortized cost, fair value and weighted average yields of AFS and HTM debt securities as of December 31, 2022. Expected maturities will differ from contractual maturities on certain securities as the issuers and borrowers of the underlying collateral may have the right to call or prepay obligations with or without prepayment penalties. ($ in thousands) Within One Year After One Year through Five Years After Five Years through Ten Years After Ten Years Total AFS debt securities: U.S. Treasury securities Amortized cost $ — $ 576,585 $ 99,721 $ — $ 676,306 Fair value — 521,174 85,029 — 606,203 Weighted-average yield (1) — % 1.28 % 0.74 % — % 1.20 % U.S. government agency and U.S. government-sponsored enterprise debt securities Amortized cost 100,000 149,772 100,000 168,034 517,806 Fair value 99,939 144,796 81,973 134,899 461,607 Weighted-average yield (1) 4.97 % 3.71 % 1.26 % 2.10 % 2.96 % U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities Amortized cost — 31,165 161,960 2,395,321 2,588,446 Fair value — 29,643 146,737 2,086,084 2,262,464 Weighted-average yield (1) — % 3.20 % 2.69 % 3.22 % 3.19 % Municipal securities Amortized cost 2,307 34,865 6,847 259,865 303,884 Fair value 2,283 32,160 5,780 216,876 257,099 Weighted-average yield (1) (2) 2.21 % 2.40 % 1.85 % 2.25 % 2.26 % Non-agency mortgage-backed securities Amortized cost 57,190 158,574 22,788 971,162 1,209,714 Fair value 56,222 151,239 22,000 818,092 1,047,553 Weighted-average yield (1) 4.93 % 3.78 % 0.84 % 2.45 % 2.72 % Corporate debt securities Amortized cost 10,000 — 334,502 329,000 673,502 Fair value 9,856 — 292,049 224,369 526,274 Weighted average yield (1) 3.77 % — % 3.59 % 1.98 % 2.81 % Foreign government bonds Amortized cost 133,999 7,166 50,000 50,000 241,165 Fair value 134,112 7,128 49,670 36,143 227,053 Weighted-average yield (1) 2.15 % 2.24 % 4.18 % 1.50 % 2.44 % Asset-backed securities Amortized cost — — — 51,152 51,152 Fair value — — — 49,076 49,076 Weighted-average yield (1) — % — % — % 5.16 % 5.16 % CLOs Amortized cost — — 25,000 592,250 617,250 Fair value — — 24,301 573,363 597,664 Weighted average yield (1) — % — % 5.23 % 5.40 % 5.40 % Total AFS debt securities Amortized cost $ 303,496 $ 958,127 $ 800,818 $ 4,816,784 $ 6,879,225 Fair value $ 302,412 $ 886,140 $ 707,539 $ 4,138,902 $ 6,034,993 Weighted-average yield (1) 3.66 % 2.18 % 2.76 % 3.16 % 3.00 % ($ in thousands) Within One Year After One Year through Five Years After Five Years through Ten Years After Ten Years Total HTM debt securities: U.S. Treasury securities Amortized cost $ — $ 404,252 $ 119,829 $ — $ 524,081 Fair value — 364,360 107,109 — 471,469 Weighted-average yield (1) — % 1.01 % 1.18 % — % 1.05 % U.S. government agency and U.S. government-sponsored enterprise debt securities Amortized cost — — 255,967 743,005 998,972 Fair value — — 216,340 573,072 789,412 Weighted-average yield (1) — % — % 1.94 % 1.88 % 1.90 % U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities Amortized cost — — 96,096 1,193,010 1,289,106 Fair value — — 80,706 961,604 1,042,310 Weighted-average yield (1) — % — % 1.56 % 1.68 % 1.67 % Municipal securities Amortized cost — — — 189,709 189,709 Fair value — — — 151,980 151,980 Weighted-average yield (1) (2) — % — % — % 1.98 % 1.98 % Total HTM debt securities Amortized cost $ — $ 404,252 $ 471,892 $ 2,125,724 $ 3,001,868 Fair value $ — $ 364,360 $ 404,155 $ 1,686,656 $ 2,455,171 Weighted-average yield (1) — % 1.01 % 1.67 % 1.78 % 1.66 % (1) Weighted-average yields are computed based on amortized cost balances. (2) Yields on tax-exempt securities are not presented on a tax-equivalent basis.
Schedule of Restricted Equity Securities	The following table presents the restricted equity securities included in Other assets on the Consolidated Balance Sheet as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 2021 FRBSF stock $ 61,374 $ 60,184 FHLB stock 17,250 17,250 Total restricted equity securities $ 78,624 $ 77,434

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional and Fair Values of Derivatives	The following table presents the notional amounts and fair values of the Company’s derivatives as of December 31, 2022 and 2021. The fair values are presented on a gross basis prior to the application of bilateral collateral and master netting agreements, but after the application of variation margin payments as settlement to fair values of contracts cleared through central clearing organizations. Total derivative asset and liability fair values are adjusted to reflect the effects of legally enforceable master netting agreements and cash collateral received or paid. The resulting net derivative asset and liability fair values are included in Other assets and Accrued expenses and other liabilities , respectively, on the Consolidated Balance Sheet. ($ in thousands) December 31, 2022 December 31, 2021 Notional Fair Value Notional Fair Value Derivative Derivative Derivative Derivative Derivatives designated as hedging instruments: Cash flow hedges: Interest rate contracts $ 3,450,000 $ 13,455 $ 19,687 $ 275,000 $ — $ 57 Net investment hedges: Foreign exchange contracts 84,832 5,590 — 86,531 — 225 Total derivatives designated as hedging instruments $ 3,534,832 $ 19,045 $ 19,687 $ 361,531 $ — $ 282 Derivatives not designated as hedging instruments: Interest rate contracts $ 16,932,414 $ 426,828 $ 564,829 $ 17,575,420 $ 240,222 $ 179,905 Commodity contracts — (1) 261,613 258,608 — (1) 222,709 194,567 Foreign exchange contracts 2,982,891 47,519 44,117 1,874,681 21,033 15,276 Credit contracts 140,950 (2) — 23 72,560 (2) — 141 Equity contracts — (3) 323 — — (3) 220 — Total derivatives not designated as hedging instruments $ 20,056,255 $ 736,283 $ 867,577 $ 19,522,661 $ 484,184 $ 389,889 Gross derivative assets/liabilities $ 755,328 $ 887,264 $ 484,184 $ 390,171 Less: Master netting agreements (242,745) (242,745) (58,679) (58,679) Less: Cash collateral received/paid (372,038) — (42,274) (174,048) Net derivative assets/liabilities $ 140,545 $ 644,519 $ 383,231 $ 157,444 (1) The notional amount of the Company’s commodity contracts totaled 12,005 thousand barrels of crude oil and 247,704 thousand units of natural gas, measured in million British thermal units (“MMBTUs”) as of December 31, 2022. In comparison, the notional amount of the Company’s commodity contracts totaled 17,924 thousand barrels of crude oil and 218,770 thousand MMBTUs of natural gas as of December 31, 2021. (2) Notional amount for credit contracts reflects the Company’s pro-rata share of the derivative instruments in RPAs. (3) The Company held equity contracts in one public company and 13 private companies as of December 31, 2022, and one public company and 12 private companies as of December 31, 2021. The following table presents the notional amounts and the gross fair values of the interest rate and foreign exchange derivatives issued for customer-related positions and other economic hedges as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 December 31, 2021 Notional Amount Fair Value Notional Amount Fair Value Assets Liabilities Assets Liabilities Customer-related positions: Interest rate contracts: Swaps $ 6,656,491 $ 1,438 $ 521,719 $ 7,460,836 $ 211,727 $ 39,650 Written options 1,548,158 — 30,904 1,118,074 — 2,148 Collars and corridors 215,773 — 8,924 194,181 1,272 642 Subtotal 8,420,422 1,438 561,547 8,773,091 212,999 42,440 Foreign exchange contracts: Forwards and spot 993,588 17,009 18,090 900,290 13,688 9,446 Swaps 623,143 6,629 12,178 66,474 1,034 17 Other 121,631 2,070 245 20,287 2 — Subtotal 1,738,362 25,708 30,513 987,051 14,724 9,463 Total $ 10,158,784 $ 27,146 $ 592,060 $ 9,760,142 $ 227,723 $ 51,903 Other economic hedges: Interest rate contracts: Swaps $ 6,683,828 $ 384,201 $ 2,047 $ 7,490,074 $ 24,418 $ 136,190 Purchased options 1,580,275 32,233 — 1,118,074 2,159 — Written options 32,117 — 1,235 — — — Collars and corridors 215,772 8,956 — 194,181 646 1,275 Subtotal 8,511,992 425,390 3,282 8,802,329 27,223 137,465 Foreign exchange contracts: Forwards and spot 77,998 3,050 87 267,689 1,564 2,695 Swaps 1,044,900 18,516 11,447 599,654 4,745 3,116 Other 121,631 245 2,070 20,287 — 2 Subtotal 1,244,529 21,811 13,604 887,630 6,309 5,813 Total $ 9,756,521 $ 447,201 $ 16,886 $ 9,689,959 $ 33,532 $ 143,278 The following table presents the notional amounts in units and the gross fair values of the commodity derivatives issued for customer-related positions and other economic hedges as of December 31, 2022 and 2021: ($ and unit in thousands) December 31, 2022 December 31, 2021 Notional Fair Value Notional Fair Value Assets Liabilities Assets Liabilities Customer-related positions: Commodity contracts: Crude oil: Swaps 2,465 Barrels $ 39,955 $ 6,178 4,682 Barrels $ 71,242 $ 60 Collars 3,011 Barrels 16,038 2,630 2,837 Barrels 33,826 106 Written options — Barrels 558 — — Barrels 87 — Subtotal 5,476 Barrels 56,551 8,808 7,519 Barrels 105,155 166 Natural gas: Swaps 92,590 MMBTUs 112,314 73,208 58,959 MMBTUs 49,188 3,775 Collars 32,072 MMBTUs 2,217 18,317 24,315 MMBTUs 10,903 458 Subtotal 124,662 MMBTUs 114,531 91,525 83,274 MMBTUs 60,091 4,233 Total $ 171,082 $ 100,333 $ 165,246 $ 4,399 Other economic hedges: Commodity contracts: Crude oil: Swaps 2,587 Barrels $ 6,935 $ 36,060 7,517 Barrels $ 27,524 $ 82,723 Collars 3,942 Barrels 1,378 12,856 2,888 Barrels — 33,399 Purchased options — Barrels — 516 — Barrels — 81 Subtotal 6,529 Barrels 8,313 49,432 10,405 Barrels 27,524 116,203 Natural gas: Swaps 91,900 MMBTUs 69,767 106,883 109,567 MMBTUs 28,803 63,029 Collars 31,142 MMBTUs 12,451 1,960 25,929 MMBTUs 1,136 10,936 Subtotal 123,042 MMBTUs 82,218 108,843 135,496 MMBTUs 29,939 73,965 Total $ 90,531 $ 158,275 $ 57,463 $ 190,168
Schedule of Pre-Tax Changes in AOCI from Cash Flows Hedges	The following table presents the pre-tax changes in AOCI from cash flow hedges for the years ended December 31, 2022, 2021 and 2020. The after-tax impact of cash flow hedges on AOCI is shown in Note 15 — Accumulated Other Comprehensive Income (Loss) to the Consolidated Financial Statements in this Form-10-K. ($ in thousands) Year Ended December 31, 2022 2021 2020 (Losses) gains recognized in AOCI: Interest rate contracts $ (74,069) $ 1,210 $ (1,604) Realized (losses) gains reclassified from AOCI into earnings: Interest expense (for cash flow hedges on borrowings) $ 3,200 $ (868) $ 113 Interest and dividend income (for cash flow hedges on loans) (7,204) — — Total $ (4,004) $ (868) $ 113
Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss)	The following table presents the pre-tax gains (losses) recognized in AOCI on net investment hedges for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Gains (losses) recognized in AOCI $ 4,509 $ (4,558) $ (6,700)
Schedule of Net Gains (Losses) Recognized on the Consolidated Statements of Income Related to Derivatives not Designated as Hedging Instruments	The following table presents the net gains (losses) recognized on the Company’s Consolidated Statement of Income related to derivatives not designated as hedging instruments for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Classification on Year Ended December 31, 2022 2021 2020 Derivatives not designated as hedging instruments: Interest rate contracts Interest rate contracts and other derivative income $ 13,905 $ 11,493 $ (8,637) Foreign exchange contracts Foreign exchange income 13,799 45,921 23,215 Credit contracts Interest rate contracts and other derivative income 118 139 (5) Equity contracts Lending fees 151 382 11,025 Commodity contracts Interest rate contracts and other derivative income 48 (58) (35) Net gains $ 28,021 $ 57,877 $ 25,563
Schedule of Gross Derivative Fair Values, the Balance Sheet Netting Adjustments and Net Fair Values on the Consolidated Balance Sheets, As Well As the Cash and Non-Cash Collateral	The following tables present the gross derivative fair values, the balance sheet netting adjustments and the resulting net fair values recorded on the Consolidated Balance Sheet, as well as the cash and noncash collateral associated with master netting arrangements. The gross amounts of derivative assets and liabilities are presented after the application of variation margin payments as settlements to the fair values of contracts cleared through central clearing organizations, where applicable. The collateral amounts in the following tables are limited to the outstanding balances of the related asset or liability. Therefore, instances of overcollateralization are not shown: ($ in thousands) As of December 31, 2022 Gross (1) Gross Amounts Offset on the Net Amounts Gross Amounts Not Offset on the Net Master Netting Arrangements Cash Collateral Received (3) Security Collateral Received (5) Derivative assets $ 755,328 $ (242,745) $ (372,038) $ 140,545 $ (60,567) $ 79,978 Gross (2) Gross Amounts Offset on the Net Amounts Gross Amounts Not Offset on the Net Master Netting Arrangements Cash Collateral Pledged (4) Security Collateral Pledged (5) Derivative liabilities $ 887,264 $ (242,745) $ — $ 644,519 $ (38,438) $ 606,081 ($ in thousands) As of December 31, 2021 Gross (1) Gross Amounts Offset on the Net Amounts Gross Amounts Not Offset on the Net Master Netting Arrangements Cash Collateral Received (3) Security Collateral (5) Derivative assets $ 484,184 $ (58,679) $ (42,274) $ 383,231 $ — $ 383,231 Gross (2) Gross Amounts Offset on the Net Amounts Gross Amounts Not Offset on the Net Master Netting Arrangements Cash Collateral Pledged (4) Security Collateral Pledged (5) Derivative liabilities $ 390,171 $ (58,679) $ (174,048) $ 157,444 $ (106,598) $ 50,846 (1) Includes $2.1 million and $587 thousand of gross fair value assets with counterparties that were not subject to enforceable master netting arrangements or similar agreements as of December 31, 2022 and 2021, respectively. (2) Includes $566 thousand and $666 thousand of gross fair value liabilities with counterparties that were not subject to enforceable master netting arrangements or similar agreements as of December 31, 2022 and 2021, respectively. (3) Gross cash collateral received under master netting arrangements or similar agreements were $384.9 million and $47.0 million as of December 31, 2022 and 2021, respectively. Of the gross cash collateral received, $372.0 million and $42.3 million were used to offset against derivative assets as of December 31, 2022 and 2021, respectively. (4) Gross cash collateral pledged under master netting arrangements or similar agreements were $490 thousand and $176.5 million as of December 31, 2022 and 2021, respectively. Of the gross cash collateral pledged, none and $174.0 million were used to offset against derivative liabilities as of December 31, 2022 and 2021, respectively. (5) Represents the fair value of security collateral received or pledged limited to derivative assets or liabilities that are subject to enforceable master netting arrangements or similar agreements. U.S. GAAP does not permit the netting of noncash collateral on the Consolidated Balance Sheet but requires disclosure of such amounts.

Loans Receivable and Allowanc_2

Loans Receivable and Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Abstract]
Schedule of the Composition of Loan Held-For-Investment	The following table presents the composition of the Company’s loans held-for-investment outstanding as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 December 31, 2021 Commercial: C&I (1) $ 15,711,095 $ 14,150,608 CRE: CRE 13,857,870 12,155,047 Multifamily residential 4,573,068 3,675,605 Construction and land 638,420 346,486 Total CRE 19,069,358 16,177,138 Total commercial 34,780,453 30,327,746 Consumer: Residential mortgage: Single-family residential 11,223,027 9,093,702 HELOCs 2,122,655 2,144,821 Total residential mortgage 13,345,682 11,238,523 Other consumer 76,295 127,512 Total consumer 13,421,977 11,366,035 Total loans held-for-investment (2) $ 48,202,430 $ 41,693,781 Allowance for loan losses (595,645) (541,579) Loans held-for-investment, net (2) $ 47,606,785 $ 41,152,202 (1) Includes Paycheck Protection Program loans of $99.0 million and $534.2 million as of December 31, 2022 and 2021, respectively. (2) Includes $(70.4) million and $(50.7) million net deferred loan fees and net unamortized premiums as of December 31, 2022 and 2021, respectively.
Schedule of Loans Held-for-Investment by Loan Portfolio Segment, Internal Risk Ratings and Vintage Year	The following tables summarize the Company’s loans held-for-investment by loan portfolio segments, internal risk ratings and vintage year as of December 31, 2022 and 2021. The vintage year is the year of origination, renewal or major modification. Revolving loans that are converted to term loans presented in the tables below are excluded from term loans by vintage year columns. December 31, 2022 Term Loans by Origination Year Revolving Loans Revolving Loans Converted to Term Loans (1) Total ($ in thousands) 2022 2021 2020 2019 2018 Prior Commercial: C&I: Pass $ 2,831,834 $ 2,053,215 $ 623,026 $ 392,013 $ 143,970 $ 97,605 $ 9,177,401 $ 20,548 $ 15,339,612 Criticized (accrual) 72,210 34,296 48,761 34,221 20,646 12,933 97,988 — 321,055 Criticized (nonaccrual) 18,722 4,797 10,733 243 5,618 10,315 — — 50,428 Total C&I 2,922,766 2,092,308 682,520 426,477 170,234 120,853 9,275,389 20,548 15,711,095 CRE: Pass 4,178,780 2,404,634 1,505,150 1,771,679 1,471,710 1,909,925 165,653 22,009 13,429,540 Criticized (accrual) 3,518 60,573 159,424 40,095 91,132 32,173 1,455 16,716 405,086 Criticized (nonaccrual) — 19,044 — — — 4,200 — — 23,244 Subtotal CRE 4,182,298 2,484,251 1,664,574 1,811,774 1,562,842 1,946,298 167,108 38,725 13,857,870 Multifamily residential: Pass 1,500,289 892,598 641,677 519,614 350,044 625,293 11,325 — 4,540,840 Criticized (accrual) — — — 707 4,276 27,076 — — 32,059 Criticized (nonaccrual) — — — — — 169 — — 169 Subtotal multifamily residential 1,500,289 892,598 641,677 520,321 354,320 652,538 11,325 — 4,573,068 Construction and land: Pass 288,394 276,839 31,804 3,104 2,805 231 9,073 — 612,250 Criticized (accrual) 4,504 — — — 21,666 — — — 26,170 Criticized (nonaccrual) — — — — — — — — — Subtotal construction and land 292,898 276,839 31,804 3,104 24,471 231 9,073 — 638,420 Total CRE 5,975,485 3,653,688 2,338,055 2,335,199 1,941,633 2,599,067 187,506 38,725 19,069,358 Total commercial 8,898,251 5,745,996 3,020,575 2,761,676 2,111,867 2,719,920 9,462,895 59,273 34,780,453 Consumer: Single-family residential: Pass (2) 3,548,894 2,453,717 1,775,696 1,101,965 817,164 1,500,359 — — 11,197,795 Criticized (accrual) — 1,275 785 1,463 4,352 3,935 — — 11,810 Criticized (Nonaccrual) (2) 141 — 204 3,202 1,721 8,154 — — 13,422 Subtotal single-family residential mortgage 3,549,035 2,454,992 1,776,685 1,106,630 823,237 1,512,448 — — 11,223,027 HELOCs: Pass 520 3,583 7,336 3,203 525 8,960 1,958,692 127,401 2,110,220 Criticized (accrual) — 6 — — — — 4 1,079 1,089 Criticized (nonaccrual) — — 483 231 1,017 4,844 1,001 3,770 11,346 Subtotal HELOCs 520 3,589 7,819 3,434 1,542 13,804 1,959,697 132,250 2,122,655 Total residential mortgage 3,549,555 2,458,581 1,784,504 1,110,064 824,779 1,526,252 1,959,697 132,250 13,345,682 Other consumer: Pass 17,088 137 5,356 — — 15,808 37,804 — 76,193 Criticized (accrual) 3 — — — — — — — 3 Criticized (nonaccrual) — — — — — — 99 — 99 Total other consumer 17,091 137 5,356 — — 15,808 37,903 — 76,295 Total consumer 3,566,646 2,458,718 1,789,860 1,110,064 824,779 1,542,060 1,997,600 132,250 13,421,977 Total by risk rating: Pass 12,365,799 8,084,723 4,590,045 3,791,578 2,786,218 4,158,181 11,359,948 169,958 47,306,450 Criticized (accrual) 80,235 96,150 208,970 76,486 142,072 76,117 99,447 17,795 797,272 Criticized (nonaccrual) 18,863 23,841 11,420 3,676 8,356 27,682 1,100 3,770 98,708 Total $ 12,464,897 $ 8,204,714 $ 4,810,435 $ 3,871,740 $ 2,936,646 $ 4,261,980 $ 11,460,495 $ 191,523 $ 48,202,430 December 31, 2021 Term Loans by Origination Year Revolving Loans Revolving Loans Converted to Term Loans (1) Total ($ in thousands) 2021 2020 2019 2018 2017 Prior Commercial: C&I: Pass $ 3,911,722 $ 1,133,085 $ 629,007 $ 187,195 $ 132,392 $ 225,326 $ 7,383,485 $ 28,842 $ 13,631,054 Criticized (accrual) 85,036 117,357 72,277 51,553 15,136 4,005 115,167 — 460,531 Criticized (nonaccrual) 29,456 2,792 513 517 9,301 16,444 — — 59,023 Total C&I 4,026,214 1,253,234 701,797 239,265 156,829 245,775 7,498,652 28,842 14,150,608 CRE: Pass 2,792,193 2,090,503 2,230,520 1,863,481 1,120,682 1,727,862 128,668 6,389 11,960,298 Criticized (accrual) 71,055 3,200 9,176 21,077 24,851 55,892 — — 185,251 Criticized (nonaccrual) 4,350 — — — 4,752 396 — — 9,498 Subtotal CRE 2,867,598 2,093,703 2,239,696 1,884,558 1,150,285 1,784,150 128,668 6,389 12,155,047 Multifamily residential: Pass 1,026,295 726,772 688,453 419,319 308,087 424,947 20,524 — 3,614,397 Criticized (accrual) — — 721 22,344 7,033 30,666 — — 60,764 Criticized (nonaccrual) — — — — — 444 — — 444 Subtotal multifamily residential 1,026,295 726,772 689,174 441,663 315,120 456,057 20,524 — 3,675,605 Construction and land: Pass 122,983 103,743 90,544 3,412 — 391 — — 321,073 Criticized (accrual) 3,355 — — 22,058 — — — — 25,413 Criticized (nonaccrual) — — — — — — — — — Subtotal construction and land 126,338 103,743 90,544 25,470 — 391 — — 346,486 Total CRE 4,020,231 2,924,218 3,019,414 2,351,691 1,465,405 2,240,598 149,192 6,389 16,177,138 Total commercial 8,046,445 4,177,452 3,721,211 2,590,956 1,622,234 2,486,373 7,647,844 35,231 30,327,746 Consumer: Single-family residential: Pass (2) 2,616,958 2,108,370 1,375,929 1,079,030 763,351 1,127,516 — — 9,071,154 Criticized (accrual) — — 458 2,813 1,899 3,212 — — 8,382 Criticized (nonaccrual) (2) — — 1,751 3,889 4,295 4,231 — — 14,166 Subtotal single-family residential mortgage 2,616,958 2,108,370 1,378,138 1,085,732 769,545 1,134,959 — — 9,093,702 HELOCs: Pass 648 3,277 4,644 1,347 3,268 11,215 1,913,478 197,414 2,135,291 Criticized (accrual) — — — — — 371 7 708 1,086 Criticized (nonaccrual) — — 52 188 3,543 973 — 3,688 8,444 Subtotal HELOCs 648 3,277 4,696 1,535 6,811 12,559 1,913,485 201,810 2,144,821 Total residential mortgage 2,617,606 2,111,647 1,382,834 1,087,267 776,356 1,147,518 1,913,485 201,810 11,238,523 Other consumer: Pass 16,831 5,258 — — 1,741 52,147 51,481 — 127,458 Criticized (accrual) 2 — — — — — — — 2 Criticized (nonaccrual) — — — — — — 52 — 52 Total other consumer 16,833 5,258 — — 1,741 52,147 51,533 — 127,512 Total consumer 2,634,439 2,116,905 1,382,834 1,087,267 778,097 1,199,665 1,965,018 201,810 11,366,035 Total by risk rating: Pass 10,487,630 6,171,008 5,019,097 3,553,784 2,329,521 3,569,404 9,497,636 232,645 40,860,725 Criticized (accrual) 159,448 120,557 82,632 119,845 48,919 94,146 115,174 708 741,429 Criticized (nonaccrual) 33,806 2,792 2,316 4,594 21,891 22,488 52 3,688 91,627 Total $ 10,680,884 $ 6,294,357 $ 5,104,045 $ 3,678,223 $ 2,400,331 $ 3,686,038 $ 9,612,862 $ 237,041 $ 41,693,781 (1) $26.2 million, $6.5 million and $23.9 million of total commercial loans, primarily comprised of CRE and C&I revolving loans, were converted to term loans during the years ended December 31, 2022, 2021 and 2020, respectively. For the year ended December 31, 2022, no consumer loans were converted to term loans. $54.1 million and $145.0 million of total consumer loans, comprised of HELOCs, were converted to term loans during the years ended December 31, 2021 and 2020, respectively. (2) As of December 31, 2022 and 2021, $818 thousand and $1.6 million, respectively, of nonaccrual loans whose payments are guaranteed by the Federal Housing Administration were classified with a “Pass” rating.
Schedule of Aging Analysis of Loans	The following tables present the aging analysis of total loans held-for-investment as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 Current Accruing Accruing Total Total Total Commercial: C&I $ 15,651,312 $ 6,482 $ 2,873 $ 9,355 $ 50,428 $ 15,711,095 CRE: CRE 13,820,441 14,185 — 14,185 23,244 13,857,870 Multifamily residential 4,571,899 678 322 1,000 169 4,573,068 Construction and land 638,420 — — — — 638,420 Total CRE 19,030,760 14,863 322 15,185 23,413 19,069,358 Total commercial 34,682,072 21,345 3,195 24,540 73,841 34,780,453 Consumer: Residential mortgage: Single-family residential 11,183,134 13,523 12,130 25,653 14,240 11,223,027 HELOCs 2,102,523 7,700 1,086 8,786 11,346 2,122,655 Total residential mortgage 13,285,657 21,223 13,216 34,439 25,586 13,345,682 Other consumer 73,004 109 3,083 3,192 99 76,295 Total consumer 13,358,661 21,332 16,299 37,631 25,685 13,421,977 Total $ 48,040,733 $ 42,677 $ 19,494 $ 62,171 $ 99,526 $ 48,202,430 ($ in thousands) December 31, 2021 Current Accruing Accruing Total Total Total Commercial: C&I $ 14,080,516 $ 6,983 $ 4,086 $ 11,069 $ 59,023 $ 14,150,608 CRE: CRE 12,141,827 3,722 — 3,722 9,498 12,155,047 Multifamily residential 3,669,819 5,320 22 5,342 444 3,675,605 Construction and land 346,486 — — — — 346,486 Total CRE 16,158,132 9,042 22 9,064 9,942 16,177,138 Total commercial 30,238,648 16,025 4,108 20,133 68,965 30,327,746 Consumer: Residential mortgage: Single-family residential 9,059,222 10,191 8,569 18,760 15,720 9,093,702 HELOCs 2,130,523 4,776 1,078 5,854 8,444 2,144,821 Total residential mortgage 11,189,745 14,967 9,647 24,614 24,164 11,238,523 Other consumer 127,352 99 9 108 52 127,512 Total consumer 11,317,097 15,066 9,656 24,722 24,216 11,366,035 Total $ 41,555,745 $ 31,091 $ 13,764 $ 44,855 $ 93,181 $ 41,693,781
Schedule of Amortized Cost of Loans on Nonaccrual Status with No Related Allowance for Loan Losses	The following table presents the amortized cost of loans on nonaccrual status for which there was no related allowance for loan losses as of both December 31, 2022 and 2021. Nonaccrual loans may not have an allowance for credit losses if the loan balances are well secured by the collateral value and there is no loss expectation. ($ in thousands) December 31, 2022 December 31, 2021 Commercial: C&I $ 11,398 $ 22,967 CRE 22,944 9,102 Total commercial 34,342 32,069 Consumer: Single-family residential 2,998 5,785 HELOCs 7,245 5,033 Total consumer 10,243 10,818 Total nonaccrual loans with no related allowance for loan losses $ 44,585 $ 42,887
Summary of Additions and Post-Modifications to Troubled Debt Restructurings	The following tables present the additions to TDRs for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Loans Modified as TDRs During the Year Ended December 31, 2022 Number Pre-Modification Post-Modification (1) Financial (2) Commercial: C&I 7 $ 69,050 $ 38,415 $ 12,638 Total commercial 7 69,050 38,415 12,638 Consumer: Residential mortgage: HELOCs 2 662 697 2 Total residential mortgage 2 662 697 2 Total consumer 2 662 697 2 Total 9 $ 69,712 $ 39,112 $ 12,640 ($ in thousands) Loans Modified as TDRs During the Year Ended December 31, 2021 Number Pre-Modification Post-Modification (1) Financial (2) Commercial: C&I 5 $ 24,155 $ 20,263 $ 1,108 CRE: Multifamily residential 1 1,101 1,066 — Total CRE 1 1,101 1,066 — Total commercial 6 25,256 21,329 1,108 Total 6 $ 25,256 $ 21,329 $ 1,108 ($ in thousands) Loans Modified as TDRs During the Year Ended December 31, 2020 Number Pre-Modification Post-Modification (1) Financial (2) Commercial: C&I 14 $ 152,249 $ 134,467 $ 19,555 CRE: CRE 2 21,429 21,221 18 Multifamily residential 1 1,220 1,226 — Total CRE 3 22,649 22,447 18 Total commercial 17 174,898 156,914 19,573 Total 17 $ 174,898 $ 156,914 $ 19,573 (1) Includes subsequent payments after modification and reflects the balance as of December 31, 2022, 2021 and 2020. (2) Includes charge-offs and specific reserves recorded since the modification date. Loans modified more than once are reported in the period they were first modified. The following tables present the TDR post-modification outstanding balances by the primary modification type for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Modification Type During the Year Ended December 31, 2022 Principal (1) Principal and Interest (2) Interest Interest Other (3) Total Commercial: C&I $ 24,238 $ — $ — $ — $ 14,177 $ 38,415 Total commercial 24,238 — — — 14,177 38,415 Consumer: Residential mortgage: HELOCs 697 — — — — 697 Total residential mortgage 697 — — — — 697 Total consumer 697 — — — — 697 Total $ 24,935 $ — $ — $ — $ 14,177 $ 39,112 ($ in thousands) Modification Type During the Year Ended December 31, 2021 Principal (1) Principal and Interest (2) Interest Interest Other (3) Total Commercial: C&I $ 4,679 $ — $ 15,584 $ — $ — $ 20,263 CRE: Multifamily residential 1,066 — — — — 1,066 Total CRE 1,066 — — — — 1,066 Total commercial 5,745 — 15,584 — — 21,329 Total $ 5,745 $ — $ 15,584 $ — $ — $ 21,329 ($ in thousands) Modification Type During the Year Ended December 31, 2020 Principal (1) Principal (2) Interest Interest Other (3) Total Commercial: C&I $ 59,134 $ 10,863 $ 31,913 $ 32,557 $ — $ 134,467 CRE: CRE 21,221 — — — — 21,221 Multifamily residential 1,226 — — — — 1,226 Total CRE 22,447 — — — — 22,447 Total commercial 81,581 10,863 31,913 32,557 — 156,914 Total $ 81,581 $ 10,863 $ 31,913 $ 32,557 $ — $ 156,914 (1) Includes forbearance payments, term extensions and principal deferments that modify the terms of the loan from principal and interest payments to interest payments only. (2) Includes principal and interest deferments or reductions. (3) Includes primarily funding to secure additional collateral and provide liquidity to collateral-dependent and term extension to C&I loans.
Summary of TDR Loans Subsequently Defaulted	The following table presents information on loans that entered into default during the years ended December 31, 2022, 2021 and 2020 that were modified as TDRs during the 12 months preceding payment default: ($ in thousands) Loans Modified as TDRs that Subsequently Defaulted 2022 2021 2020 Number of Recorded Number of Recorded Number of Recorded Commercial: C&I 2 $ 10,296 1 $ 11,431 1 $ 15,852 Total commercial 2 10,296 1 11,431 1 15,852 Total 2 $ 10,296 1 $ 11,431 1 $ 15,852
Key Credit Risk Characteristics and Macroeconomic Variables	The following table provides key credit risk characteristics and macroeconomic variables that the Company uses to estimate the expected credit losses by portfolio segment: Portfolio Segment Risk Characteristics Macroeconomic Variables C&I Age (1) , size and spread at origination, and risk rating Volatility Index (“VIX”) and BBB yield to 10-year U.S. Treasury spread (“BBB spread”) (1) CRE, Multifamily residential, and Construction and land Delinquency status, maturity date, collateral value, property type, and geographic location Unemployment rate, Gross Domestic Product (“GDP”), and U.S. Treasury rates Single-family residential and HELOCs FICO score, delinquency status, maturity date, collateral value, and geographic location Unemployment rate, GDP, and home price index Other consumer Historical loss experience Immaterial (2) (1) Due to the model enhancements during the third quarter of 2021, the risk characteristic related to “time-to-maturity” was changed to “age”; while macroeconomic variables related to “unemployment rate and two- and ten-year U.S. Treasury spread” were changed to “VIX and BBB spread” . (2) Macroeconomic variables are included in the qualitative estimate.
Summary of the Activity in the Allowance for Credit Losses	The following tables summarize the activity in the allowance for loan losses by portfolio segments for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 Commercial Consumer Total C&I CRE Residential Mortgage Other CRE Multifamily Construction Single- HELOCs Allowance for loan losses, beginning of period $ 338,252 $ 150,940 $ 14,400 $ 15,468 $ 17,160 $ 3,435 $ 1,924 $ 541,579 Provision for (reversal of) credit losses on loans (a) 37,604 8,212 15,651 (6,433) 18,867 1,124 (258) 74,767 Gross charge-offs (18,738) (10,871) (7,237) — (775) (193) (106) (37,920) Gross recoveries 16,824 1,583 559 74 312 109 — 19,461 Total net (charge-offs) recoveries (1,914) (9,288) (6,678) 74 (463) (84) (106) (18,459) Foreign currency translation adjustment (2,242) — — — — — — (2,242) Allowance for loan losses, end of period $ 371,700 $ 149,864 $ 23,373 $ 9,109 $ 35,564 $ 4,475 $ 1,560 $ 595,645 ($ in thousands) Year Ended December 31, 2021 Commercial Consumer Total C&I CRE Residential Mortgage Other CRE Multifamily Construction Single- HELOCs Allowance for loan losses, beginning of period $ 398,040 $ 163,791 $ 27,573 $ 10,239 $ 15,520 $ 2,690 $ 2,130 $ 619,983 (Reversal of) provision for credit losses on loans (a) (39,732) 14,282 (15,076) 7,576 1,965 745 1,286 (28,954) Gross charge-offs (32,490) (28,430) (130) (2,954) (1,046) (45) (1,497) (66,592) Gross recoveries 11,906 1,297 2,033 607 721 45 5 16,614 Total net (charge-offs) recoveries (20,584) (27,133) 1,903 (2,347) (325) — (1,492) (49,978) Foreign currency translation adjustment 528 — — — — — — 528 Allowance for loan losses, end of period $ 338,252 $ 150,940 $ 14,400 $ 15,468 $ 17,160 $ 3,435 $ 1,924 $ 541,579 ($ in thousands) Year Ended December 31, 2020 Commercial Consumer Total C&I CRE Residential Mortgage Other CRE Multifamily Construction Single- HELOCs Allowance for loan losses, beginning of period $ 238,376 $ 40,509 $ 22,826 $ 19,404 $ 28,527 $ 5,265 $ 3,380 $ 358,287 Impact of ASU 2016-13 adoption 74,237 72,169 (8,112) (9,889) (3,670) (1,798) 2,221 125,158 Provision for (reversal of) credit losses on loans (a) 145,212 55,864 10,879 644 (9,922) (605) (3,381) 198,691 Gross charge-offs (66,225) (15,206) — — — (221) (185) (81,837) Gross recoveries 5,428 10,455 1,980 80 585 49 95 18,672 Total net (charge-offs) recoveries (60,797) (4,751) 1,980 80 585 (172) (90) (63,165) Foreign currency translation adjustment 1,012 — — — — — — 1,012 Allowance for loan losses, end of period $ 398,040 $ 163,791 $ 27,573 $ 10,239 $ 15,520 $ 2,690 $ 2,130 $ 619,983 ($ in thousands) Year Ended December 31, 2022 2021 2020 Unfunded credit facilities Allowance for unfunded credit commitments, beginning of period $ 27,514 $ 33,577 $ 11,158 Impact of ASU 2016-13 adoption — — 10,457 (Reversal of) provision for credit losses on unfunded credit commitments (b) (1,267) (6,046) 11,962 Foreign currency translation adjustments 17 (17) — Allowance for unfunded credit commitments, end of period 26,264 27,514 33,577 Provision for (reversal of) credit losses (a) + (b) $ 73,500 $ (35,000) $ 210,653
Schedule of Carrying Value of Loans Transferred, Loans Sold and Purchased for the Held-for-Investment Portfolio	The following tables provide information on the carrying value of loans transferred, loans sold and purchased for the held-for-investment portfolio, during the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 Commercial Consumer CRE Residential Mortgage ($ in thousands) C&I CRE Multifamily Construction Single-Family Total Loans transferred from held-for-investment to held-for-sale (1) $ 530,524 $ 88,075 $ — $ — $ 5,178 $ 623,777 Loans transferred from held-for-sale to held-for-investment $ — $ — $ — $ — $ 631 $ 631 Sales (2)(3)(4) $ 501,289 $ 88,075 $ — $ — $ 6,403 $ 595,767 Purchases (5) $ 363,549 $ — $ — $ — $ 293,721 $ 657,270 Year Ended December 31, 2021 Commercial Consumer CRE Residential Mortgage ($ in thousands) C&I CRE Multifamily Construction Single-Family Total Loans transferred from held-for-investment to held-for-sale (1) $ 496,655 $ 78,834 $ — $ 18,883 $ 5,238 $ 599,610 Sales (2)(3)(4) $ 502,694 $ 78,834 $ — $ 21,557 $ 18,458 $ 621,543 Purchases (5) $ 479,690 $ — $ 370 $ — $ 564,651 $ 1,044,711 Year Ended December 31, 2020 Commercial Consumer CRE Residential Mortgage ($ in thousands) C&I CRE Multifamily Construction Single-Family Total Loans transferred from held-for-investment to held-for-sale (1) $ 300,677 $ 26,994 $ 1,398 $ — $ — $ 329,069 Sales (2)(3)(4) $ 303,520 $ 26,994 $ 1,398 $ — $ 80,309 $ 412,221 Purchases (5) $ 154,154 $ — $ 2,358 $ — $ 233,068 $ 389,580 (1) Includes write-downs of $3.1 million, $12.2 million and $2.8 million to the allowance for loan losses related to loans transferred from held-for-investment to held-for-sale for the years ended December 31, 2022, 2021 and 2020, respectively. (2) Includes originated loans sold of $387.5 million, $413.1 million and $400.4 million for the years ended December 31, 2022, 2021 and 2020, respectively. Originated loans sold consisted primarily of C&I and CRE loans for all periods. (3) Includes $208.2 million, $208.4 million and $11.8 million of purchased loans sold in the secondary market for the years ended December 31, 2022, 2021 and 2020, respectively. (4) Net gains on sales of loans were $6.4 million, $8.9 million and $4.5 million for the years ended December 31, 2022, 2021 and 2020, respectively. (5) C&I loan purchases were comprised primarily of syndicated C&I term loans.

Investments in Qualified Affo_2

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities (Tables)	12 Months Ended
	Dec. 31, 2022
Investments in Qualified Affordable Housing Partnerships, Net [Abstract]
Schedule of Affordable Housing and Tax Credits and Other Investments and Unfunded Commitments	The following table presents investments and unfunded commitments of the Company’s qualified affordable housing partnerships, tax credit, and other investments as of December 31, 2022 and 2021: December 31, 2022 2021 ($ in thousands) Assets Liabilities - Unfunded Commitments (1) Assets Liabilities - Unfunded Commitments (1) Investments in qualified affordable housing partnerships, net $ 413,253 $ 266,654 $ 289,741 $ 146,152 Investments in tax credit and other investments, net 350,003 185,797 338,522 163,464 Total $ 763,256 $ 452,451 $ 628,263 $ 309,616 (1) Included in Accrued expenses and other liabilities on the Consolidated Balance Sheet.
Schedule of Additional Information related to the Investments in Affordable Housing and Tax Credit and Other Investments	The following table presents additional information related to the investments in qualified affordable housing partnerships, tax credit and other investments for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Investments in qualified housing partnerships, net Tax credits and other tax benefits recognized $ 52,132 $ 50,643 $ 45,971 Amortization expense included in income tax expense $ 38,759 $ 33,248 $ 37,132 Investments in tax credit and other investments, net Amortization of tax credit and other investments $ 113,358 $ 122,457 $ 70,082 Unrealized (losses) gains on equity securities with readily determinable values $ (2,928) $ (746) $ 732 Impairment recoveries (losses), net ( 1) $ 469 $ 1,250 $ (3,699) (1) For the year ended December 31, 2022, impairment recoveries of $3.4 million were related to three energy tax credits and one historic tax credit, respectively, offset by impairment losses of $2.9 million related to two historic tax credits. For the year ended December 31, 2021, impairment recoveries were related to one historic tax credit and two energy tax credits. For the year ended December 31, 2020, impairment losses of $4.8 million and $360 thousand related to three historic tax credits and one non-marketable equity security, respectively, offset by impairment recoveries of $1.5 million related to one energy tax credit and three historic tax credits.
Schedule of Unfunded Commitments Related to Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Estimated to be Funded	As of December 31, 2022, the Company’s unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments are estimated to be funded as follows: ($ in thousands) Amount 2023 $ 312,795 2024 64,576 2025 64,617 2026 3,936 2027 1,413 Thereafter 5,114 Total $ 452,451

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2022
DEPOSIT ACCOUNTS
Schedule of Deposit Liabilities, Type	The following table presents the composition of the Company’s deposits as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 2021 Deposits: Noninterest-bearing demand $ 21,051,090 $ 22,845,464 Interest-bearing checking 6,672,165 6,524,721 Money market 12,265,024 13,130,300 Savings 2,649,037 2,888,065 Time deposits (1) : Domestic office 11,878,734 6,940,013 Foreign office 1,451,799 1,021,969 Total deposits $ 55,967,849 $ 53,350,532 (1) The aggregate amount of time deposits that met or exceeded the deposit insurance limit was $10.56 billion and $5.95 billion as of December 31, 2022 and 2021, respectively.
Schedule of Time Deposit Maturities	The following table presents the scheduled maturities of time deposits for the five years succeeding December 31, 2022: ($ in thousands) Amount 2023 $ 13,102,192 2024 201,014 2025 16,009 2026 4,795 2027 6,523 Total $ 13,330,533

Federal Home Loan Bank Advanc_2

Federal Home Loan Bank Advances and Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2022
FEDERAL HOME LOAN BANK ADVANCES AND LONG-TERM DEBT
Schedule Of FHLB and Long-Term Debt	The following table presents the balance of the Company’s junior subordinated debt and FHLB advances as of December 31, 2022 and 2021, and the related contractual rates and maturity dates as of December 31, 2022: ($ in thousands) Interest Rate Maturity Dates December 31, 2022 2021 Amount Amount Parent company Junior subordinated debt (1 ) — floating (2) 6.12% — 6.67% 2034 — 2037 $ 147,950 $ 147,658 Bank FHLB advances (3 ) — floating (2) —% 2022 $ — $ 249,331 (1) The weighted-average contractual interest rates for junior subordinated debt were 3.49% and 1.74% as of December 31, 2022 and 2021, respectively. (2) Floating interest rates reset monthly or quarterly based on London Interbank Offered Rate (“LIBOR”).
Schedule of the Components of Long-Term Debt	The following table presents the outstanding junior subordinated debt issued by each trust as of December 31, 2022, and 2021: Issuer Stated (1) Stated Current Rate December 31, 2022 December 31, 2021 Aggregate Aggregate Aggregate Aggregate ($ in thousands) East West Capital Trust V November 2034 3-month LIBOR + 1.80% 6.49% $ 464 $ 15,000 $ 464 $ 15,000 East West Capital Trust VI September 2035 3-month LIBOR + 1.50% 6.27% 619 20,000 619 20,000 East West Capital Trust VII June 2036 3-month LIBOR + 1.35% 6.12% 928 30,000 928 30,000 East West Capital Trust VIII June 2037 3-month LIBOR + 1.40% 6.13% 619 18,000 619 18,000 East West Capital Trust IX September 2037 3-month LIBOR + 1.90% 6.67% 928 30,000 928 30,000 MCBI Statutory Trust I December 2035 3-month LIBOR + 1.55% 6.32% 1,083 35,000 1,083 35,000 Total $ 4,641 $ 148,000 $ 4,641 $ 148,000 (1) The debt instruments above mature in more than five years after December 31, 2022 and are subject to call options where early redemption requires appropriate notice.

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 table presents the components of income tax expense (benefit) for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Current income tax expense (benefit): Federal $ 163,797 $ 84,249 $ 84,560 State 160,629 95,939 74,252 Foreign 3,133 (1,554) 671 Total current income tax expense 327,559 178,634 159,483 Deferred income (benefit) tax expense: Federal (23,484) 1,528 (28,093) State (21,835) 3,259 (11,671) Foreign 1,331 (25) (1,751) Total deferred income (benefit) tax expense (43,988) 4,762 (41,515) Income tax expense $ 283,571 $ 183,396 $ 117,968
Schedule of Reconciliation of the Federal Statutory Rate to the Effective Tax Rate	The following table presents the reconciliation of the federal statutory rate to the Company’s effective tax rate for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 2021 2020 Statutory U.S. federal tax rate 21.0 % 21.0 % 21.0 % U.S. state income taxes, net of U.S. federal income tax effect 7.8 7.4 7.2 Tax credits and benefits, net of related expenses (8.9) (11.3) (12.4) Other, net 0.2 0.3 1.4 Effective tax rate 20.1 % 17.4 % 17.2 %
Schedule of Temporary Differences that Give Rise to a Significant Portion of Deferred Tax Assets and Liabilities	The following table summarizes the tax effects of temporary differences that give rise to a significant portion of deferred tax assets and liabilities as of December 31, 2022 and 2021: ($ in thousands) December 31, 2022 2021 Deferred tax assets: Allowance for credit losses and nonperforming assets valuation allowance $ 191,187 $ 166,398 Investments in qualified affordable housing partnerships, tax credit and other investments, net 21,011 14,977 Stock compensation and other accrued compensation 25,857 23,954 Interest income on nonaccrual loans 5,185 4,192 State taxes 13,259 5,237 Net unrealized losses on debt securities and derivatives 309,837 37,423 Tax credit carryforwards — 8,692 Premises and equipment 3,827 1,434 Lease liabilities 34,859 31,324 Other 6,169 1,018 Total deferred tax assets $ 611,191 $ 294,649 Deferred tax liabilities: Equipment lease financing $ 27,237 $ 26,607 Investments in qualified affordable housing partnerships, tax credit and other investments, net 7,709 12,187 FHLB stock dividends 1,926 1,886 Mortgage servicing assets 1,963 1,759 Acquired debts 1,477 1,536 Prepaid expenses 2,478 1,525 Operating lease right-of-use assets 32,606 29,472 Other 6,270 1,547 Total deferred tax liabilities $ 81,666 $ 76,519 Net deferred tax assets $ 529,525 $ 218,130
Schedule of Reconciliation of the Beginning and Ending Amounts of Unrecognized Tax Benefits	The following table presents a reconciliation of the beginning and ending balances of unrecognized tax benefits for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, ($ in thousands) 2022 2021 2020 Beginning balance $ 5,045 $ 5,045 $ — Additions for tax positions related to prior years — — 5,045 Settlements with taxing authorities (4,568) — — Ending balance $ 477 $ 5,045 $ 5,045

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Schedule of Credit-Related Commitments	The following table presents the Company’s credit-related commitments as of December 31, 2022 and 2021: December 31, 2022 2021 ($ in thousands) Expire in One Year or Less Expire After One Year Through Expire After Three Years Through Expire After Five Years Total Total Loan commitments $ 3,680,606 $ 3,469,265 $ 971,534 $ 90,166 $ 8,211,571 $ 6,911,398 Commercial letters of credit and SBLCs 677,255 462,367 69,815 1,082,529 2,291,966 2,221,699 Total $ 4,357,861 $ 3,931,632 $ 1,041,349 $ 1,172,695 $ 10,503,537 $ 9,133,097
Schedule of Guarantees Outstanding	The following table presents the carrying amounts of loans sold or securitized with recourse and the maximum potential future payments as of December 31, 2022 and 2021: Maximum Potential Future Payments Carrying Value December 31, December 31, 2022 2021 2022 2021 ($ in thousands) Expire in One Year or Less Expire After One Year Through Three Years Expire After Three Years Through Expire After Five Years Total Total Total Total Single-family residential loans sold or securitized with recourse $ 36 $ 111 $ — $ 6,634 $ 6,781 $ 7,926 $ 6,781 $ 7,926 Multifamily residential loans sold or securitized with recourse — — — 14,996 14,996 14,996 21,320 23,169 Total $ 36 $ 111 $ — $ 21,630 $ 21,777 $ 22,922 $ 28,101 $ 31,095

Stock Compensation Plans (Table

Stock Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Schedule of Stock Compensation Expense and Related Net Tax Benefits	The following table presents a summary of the total share-based compensation expense and the related net tax benefits (deficiencies) associated with the Company’s various employee share-based compensation plans for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Stock compensation costs $ 37,601 $ 32,567 $ 29,237 Related net tax benefits (deficiencies) for stock compensation plans $ 5,293 $ 1,760 $ (1,839)
Summary of Activities for Time-Based and Performance-Based Restricted Stock Units	The following table presents a summary of the activities for the Company’s time-based and performance-based RSUs that will be settled in shares for the year ended December 31, 2022. The number of outstanding performance-based RSUs stated below reflects the number of awards granted on the grant date. Time-Based RSUs Performance-Based RSUs Shares Weighted- Shares Weighted- Outstanding, January 1, 2022 1,329,946 $ 52.65 369,731 $ 54.28 Modified from cash-settled RSUs 31,523 77.28 — — Granted 444,359 78.15 91,874 77.91 Vested (373,363) 53.07 (125,213) 54.64 Forfeited (135,599) 63.15 (3,882) 77.91 Outstanding, December 31, 2022 1,296,866 $ 60.77 332,510 $ 60.40
Summary of Time-Based RSU's that Will be Settled in Cash	The following table presents a summary of the activities for the Company’s time-based RSUs that are cash-settled for the year ended December 31, 2022. During 2022, the amount of cash paid to settle the vested RSUs was $318 thousand. Shares Outstanding, January 1, 2022 32,647 Modified to share-settled RSUs (31,523) Granted 2,668 Vested (3,471) Forfeited (321) Outstanding, December 31, 2022 —

Stockholders_ Equity and Earn_2

Stockholders’ Equity and Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Schedule of Earnings Per Share Calculations	The following table presents the basic and diluted EPS calculations for the years ended December 31, 2022, 2021 and 2020. For more information on the calculation of EPS, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Earnings Per Share to the Consolidated Financial Statements in this Form 10-K. ($ and shares in thousands, except per share data) Year Ended December 31, 2022 2021 2020 Basic: Net income $ 1,128,083 $ 872,981 $ 567,797 Weighted-average number of shares outstanding 141,326 141,826 142,336 Basic EPS $ 7.98 $ 6.16 $ 3.99 Diluted: Net income $ 1,128,083 $ 872,981 $ 567,797 Weighted-average number of shares outstanding 141,326 141,826 142,336 Add: Diluted impact of unvested RSUs 1,166 1,314 655 Diluted weighted-average number of shares outstanding 142,492 143,140 142,991 Diluted EPS $ 7.92 $ 6.10 $ 3.97

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Schedule of the Changes in the Components of Accumulated Other Comprehensive Income (Loss) Balances	The following table presents the changes in the components of AOCI balances for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Debt Cash Foreign (1) Total Balance, December 31, 2019 $ (2,419) $ — $ (15,989) $ (18,408) Net unrealized gains (losses) arising during the period 63,329 (1,149) 9,297 71,477 Amounts reclassified from AOCI (8,663) (81) — (8,744) Changes, net of tax 54,666 (1,230) 9,297 62,733 Balance, December 31, 2020 $ 52,247 $ (1,230) $ (6,692) $ 44,325 Net unrealized (losses) gains arising during the period (136,846) 866 1,757 (134,223) Amounts reclassified from AOCI (1,104) 621 — (483) Changes, net of tax (137,950) 1,487 1,757 (134,706) Balance, December 31, 2021 $ (85,703) $ 257 $ (4,935) $ (90,381) Net unrealized losses arising during the period (620,870) (52,623) (16,348) (689,841) Amounts reclassified from AOCI 11,758 2,835 — 14,593 Changes, net of tax (609,112) (49,788) (16,348) (675,248) Balance, December 31, 2022 $ (694,815) (2) $ (49,531) $ (21,283) $ (765,629) (1) Represents foreign currency translation adjustments related to the Company’s net investment in non-U.S. operations, including related hedges. The functional currency and reporting currency of the Company’s foreign subsidiary was RMB and USD, respectively. (2) Includes after-tax unamortized losses of $113.0 million related to AFS debt securities that were transferred to HTM. For further information, refer to Note 4 — Securities to the Consolidated Financial Statements in this Form 10-K.
Schedule of Components of Other Comprehensive Income (loss), Reclassifications to Net income and the Related Tax Effects	The following table presents the components of other comprehensive income (loss), reclassifications to net income and the related tax effects for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Year Ended December 31, 2022 2021 2020 Before - Tax Net-of- Before - Tax Net-of- Before - Tax Net-of- Debt securities: Net unrealized (losses) gains arising during the period $ (881,516) $ 260,646 $ (620,870) $ (194,393) $ 57,547 $ (136,846) $ 89,868 $ (26,539) $ 63,329 Reclassification adjustments: Net realized gains reclassified into net income (1) (1,306) 386 (920) (1,568) 464 (1,104) (12,299) 3,636 (8,663) Amortization of unrealized losses on transferred securities (2) 18,000 (5,322) 12,678 — — — — — — Net change (864,822) 255,710 (609,112) (195,961) 58,011 (137,950) 77,569 (22,903) 54,666 Cash flow hedges: Net unrealized (losses) gains arising during the period (74,069) 21,446 (52,623) 1,210 (344) 866 (1,604) 455 (1,149) Net realized losses (gains) reclassified into net income (3) 4,004 (1,169) 2,835 868 (247) 621 (113) 32 (81) Net change (70,065) 20,277 (49,788) 2,078 (591) 1,487 (1,717) 487 (1,230) Foreign currency translation adjustments, net of hedges: Net unrealized (losses) gains arising during the period (15,059) (1,289) (16,348) 463 1,294 1,757 7,398 1,899 9,297 Net change (15,059) (1,289) (16,348) 463 1,294 1,757 7,398 1,899 9,297 Other comprehensive (loss) income $ (949,946) $ 274,698 $ (675,248) $ (193,420) $ 58,714 $ (134,706) $ 83,250 $ (20,517) $ 62,733 (1) Pre-tax amounts were reported in G ains on sales of AFS debt securities on the Consolidated Statement of Income. (2) Represents unrealized losses amortized over the remaining lives of securities that were transferred from the AFS to HTM portfolio. (3) Pre-tax amounts related to cash flow hedges on CRE loans and long-term borrowings were reported in Interest and dividend income and in Interest expense, respectively , on the Consolidated Statement of Income.

Regulatory Requirements and M_2

Regulatory Requirements and Matters (Tables)	12 Months Ended
	Dec. 31, 2022
Banking and Thrift, Interest [Abstract]
Schedule of Regulatory Capital Information	The following table presents the regulatory capital information of the Company and the Bank as of December 31, 2022 and 2021: ($ in thousands) Basel III December 31, 2022 December 31, 2021 Minimum Fully Phased-in Minimum Capital Ratios (2) Well- Amount Ratio Amount Ratio Total capital (to risk-weighted assets) Company $ 7,003,299 14.0 % $ 6,124,827 14.1 % 8.0 % 10.5 % 10.0 % East West Bank $ 6,760,612 13.5 % $ 5,766,734 13.2 % 8.0 % 10.5 % 10.0 % Tier 1 capital (to risk-weighted assets) Company $ 6,347,108 12.7 % $ 5,559,357 12.8 % 6.0 % 8.5 % 6.0 % East West Bank $ 6,252,421 12.5 % $ 5,349,264 12.3 % 6.0 % 8.5 % 8.0 % CET1 capital (to risk-weighted assets) Company $ 6,347,108 12.7 % $ 5,559,357 12.8 % 4.5 % 7.0 % 6.5 % East West Bank $ 6,252,421 12.5 % $ 5,349,264 12.3 % 4.5 % 7.0 % 6.5 % Tier 1 leverage capital (to adjusted average assets) Company (1) $ 6,347,108 9.8 % $ 5,559,357 9.0 % 4.0 % 4.0 % N/A East West Bank $ 6,252,421 9.7 % $ 5,349,264 8.6 % 4.0 % 4.0 % 5.0 % Risk-weighted assets Company $ 50,036,719 N/A $ 43,585,105 N/A N/A N/A N/A East West Bank $ 50,024,772 N/A $ 43,572,086 N/A N/A N/A N/A Adjusted quarterly average total assets Company $ 65,221,597 N/A $ 62,387,003 N/A N/A N/A N/A East West Bank $ 65,198,267 N/A $ 62,366,514 N/A N/A N/A N/A N/A — Not applicable. (1) The Tier 1 leverage capital well-capitalized requirement applies only to the Bank since there is no Tier 1 leverage ratio component in the definition of a well-capitalized bank holding company. (2) Includes a 2.5% capital conservation buffer requirement above the minimum risk-based capital ratios.

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2022
Segment Reporting [Abstract]
Schedule of Operating Results and Key Financial Measures by Operating Segments	The following tables present the operating results and other key financial measures for the individual operating segments as of and for the years ended December 31, 2022, 2021 and 2020: ($ in thousands) Consumer and Commercial Other Total Year Ended December 31, 2022 Net interest income (loss) before provision for credit losses $ 1,170,850 $ 892,386 $ (17,355) $ 2,045,881 Provision for credit losses 27,197 46,303 — 73,500 Noninterest income 110,139 179,248 9,279 298,666 Noninterest expense 397,882 314,185 147,326 859,393 Segment income (loss) before income taxes 855,910 711,146 (155,402) 1,411,654 Segment net income $ 608,120 $ 507,467 $ 12,496 $ 1,128,083 As of December 31, 2022 Segment assets $ 17,385,804 $ 33,042,785 $ 13,683,561 $ 64,112,150 ($ in thousands) Consumer and Commercial Other Total Year Ended December 31, 2021 Net interest income before reversal of provision for credit losses $ 697,101 $ 766,202 $ 68,268 $ 1,531,571 Reversal of provision for credit losses (4,998) (30,002) — (35,000) Noninterest income 94,125 163,768 28,002 285,895 Noninterest expense 364,635 275,649 155,805 796,089 Segment income (loss) before income taxes 431,589 684,323 (59,535) 1,056,377 Segment net income $ 308,630 $ 489,233 $ 75,118 $ 872,981 As of December 31, 2021 Segment assets $ 14,961,809 $ 28,556,706 $ 17,352,186 $ 60,870,701 ($ in thousands) Consumer and Commercial Other Total Year Ended December 31, 2020 Net interest income before provision for credit losses $ 530,829 $ 706,286 $ 140,078 $ 1,377,193 Provision for credit losses 3,885 206,768 — 210,653 Noninterest income 64,115 142,337 29,095 235,547 Noninterest expense 331,750 266,923 117,649 716,322 Segment income before income taxes 259,309 374,932 51,524 685,765 Segment net income $ 185,782 $ 268,476 $ 113,539 $ 567,797 As of December 31, 2020 Segment assets $ 13,351,060 $ 26,958,766 $ 11,847,087 $ 52,156,913

Parent Company Condensed Fina_2

Parent Company Condensed Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2022
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheet	The following tables present the Parent Company-only condensed financial statements: CONDENSED BALANCE SHEET ($ in thousands) December 31, 2022 2021 ASSETS Cash and cash equivalents due from subsidiary bank $ 228,531 $ 345,018 Investments in subsidiaries: Bank 5,889,775 5,626,975 Nonbank 13,846 9,136 Investments in tax credit investments, net 1,925 4,082 Other assets 8,516 9,407 TOTAL $ 6,142,593 $ 5,994,618 LIABILITIES AND STOCKHOLDERS’ EQUITY Long-term debt $ 147,950 $ 147,658 Other liabilities 10,031 9,742 Stockholders’ equity 5,984,612 5,837,218 TOTAL $ 6,142,593 $ 5,994,618
Condensed Statement of Income	CONDENSED STATEMENT OF INCOME ($ in thousands) Year Ended December 31, 2022 2021 2020 Dividends from subsidiaries: Bank $ 240,000 $ 200,000 $ 511,000 Nonbank 157 82 109 Other income — 11 3 Total income 240,157 200,093 511,112 Interest expense on long-term debt 5,450 2,974 3,877 Compensation and employee benefits 6,708 6,370 6,210 (Impairment recoveries) amortization of tax credit and other investments (786) 425 1,248 Other expense 2,040 1,306 1,184 Total expense 13,412 11,075 12,519 Income before income tax benefit and equity in undistributed income of subsidiaries 226,745 189,018 498,593 Income tax benefit 4,269 3,005 4,158 Undistributed earnings of subsidiaries, primarily bank 897,069 680,958 65,046 Net income $ 1,128,083 $ 872,981 $ 567,797
Condensed Statement of Cash Flows	CONDENSED STATEMENT OF CASH FLOWS ($ in thousands) Year Ended December 31, 2022 2021 2020 CASH FLOWS FROM OPERATING ACTIVITIES Net income $ 1,128,083 $ 872,981 $ 567,797 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed earnings of subsidiaries, principally bank (897,069) (680,958) (65,046) Amortization expense 1,333 1,877 1,523 Deferred income (benefit) tax expense (2,193) 2,721 491 Net change in other assets 4,250 (5,685) 40 Net change in other liabilities 779 (81,706) 77,052 Net cash provided by operating activities 235,183 109,230 581,857 CASH FLOWS FROM INVESTING ACTIVITIES Net increase in investments in tax credit investments (1,612) (346) (172) Distributions received from equity method investees 410 436 4,096 Net increase in investments in and advances to nonbank subsidiaries (6,188) (1,476) (2,732) Net cash (used in) provided by investing activities (7,390) (1,386) 1,192 CASH FLOWS FROM FINANCING ACTIVITIES Common stock: Proceeds from issuance pursuant to various stock compensation plans and agreements 3,178 2,573 2,326 Stock tendered for payment of withholding taxes (19,087) (15,702) (8,253) Repurchased of common stock pursuant to the Stock Repurchase Program (99,990) — (145,966) Cash dividends paid (228,381) (188,762) (158,222) Net cash used in financing activities (344,280) (201,891) (310,115) Net (decrease) increase in cash and cash equivalents (116,487) (94,047) 272,934 Cash and cash equivalents, beginning of year 345,018 439,065 166,131 Cash and cash equivalents, end of year $ 228,531 $ 345,018 $ 439,065

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Nature of Operations and Principles of Consolidation (Details)	12 Months Ended
	Dec. 31, 2022 trust location	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of banking locations (more than) | location	120
Principles of Consolidation
Number of wholly owned subsidiaries that are statutory business trusts | trust	6
Revenue Benchmark | Customer Concentration Risk | Service Charges, Deposit Account Fees, Card Income and Wealth Managment Fees
Disaggregation of Revenue [Abstract]
Revenue streams, Percent of total non-interest income	39%	35%	29%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Premises and Equipment, net (Details)	12 Months Ended
	Dec. 31, 2022
Buildings
Premises and equipment
Estimated useful life	25 years
Furniture, fixtures and equipment, and building improvements | Minimum
Premises and equipment
Estimated useful life	3 years
Furniture, fixtures and equipment, and building improvements | Maximum
Premises and equipment
Estimated useful life	7 years

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Goodwill and Other Intangible Assets (Details)	12 Months Ended
	Dec. 31, 2022 segment
Accounting Policies [Abstract]
Number of reportable segments	3

Fair Value Measurement and Fa_3

Fair Value Measurement and Fair Value of Financial Instruments - Financial Assets and Liabilities Measurement on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt securities available-for-sale
Investments in Tax Credit and Other Investments, Net	$ 350,003	$ 338,522
Derivative
Derivative assets - Fair value	755,328	484,184
Derivative asset, after netting	140,545	383,231
Derivative liabilities - Fair Value	887,264	390,171
Derivative liability, after netting	644,519	157,444
Fair Value, Measurements, Recurring
Debt securities available-for-sale
Fair Value	6,034,993	9,965,353
Equity Securities with readily determinable fair value	23,954	26,604
Investments in Tax Credit and Other Investments, Net	23,954	26,604
Derivative
Derivative assets - Fair value	755,328	484,184
Netting adjustments	(614,783)	(100,953)
Derivative asset, after netting	140,545	383,231
Derivative liabilities - Fair Value	887,264	390,171
Netting adjustments	(242,745)	(232,727)
Derivative liability, after netting	644,519	157,444
Fair Value, Measurements, Recurring | Interest rate contracts
Derivative
Derivative assets - Fair value	440,283	240,222
Derivative liabilities - Fair Value	584,516	180,130
Fair Value, Measurements, Recurring | Foreign exchange contracts
Derivative
Derivative assets - Fair value	53,109	21,033
Derivative liabilities - Fair Value	44,117	15,333
Fair Value, Measurements, Recurring | Credit contracts
Derivative
Derivative liabilities - Fair Value	23	141
Fair Value, Measurements, Recurring | Equity contracts
Derivative
Derivative assets - Fair value	323	220
Fair Value, Measurements, Recurring | Commodity contracts
Derivative
Derivative assets - Fair value	261,613	222,709
Derivative liabilities - Fair Value	258,608	194,567
Fair Value, Measurements, Recurring | U.S. Treasury securities
Debt securities available-for-sale
Fair Value	606,203	1,032,681
Fair Value, Measurements, Recurring | U.S. government agency and U.S. government-sponsored enterprise debt securities
Debt securities available-for-sale
Fair Value	461,607	1,301,971
Fair Value, Measurements, Recurring | US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Debt securities available-for-sale
Fair Value	500,269	1,228,980
Fair Value, Measurements, Recurring | US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Debt securities available-for-sale
Fair Value	1,762,195	2,928,283
Fair Value, Measurements, Recurring | Municipal securities:
Debt securities available-for-sale
Fair Value	257,099	523,158
Fair Value, Measurements, Recurring | Non-agency commercial mortgage-backed Securities
Debt securities available-for-sale
Fair Value	398,329	496,443
Fair Value, Measurements, Recurring | Non-agency residential mortgage-backed Securities
Debt securities available-for-sale
Fair Value	649,224	881,931
Fair Value, Measurements, Recurring | Corporate debt securities
Debt securities available-for-sale
Fair Value	526,274	649,665
Fair Value, Measurements, Recurring | Foreign government bonds
Debt securities available-for-sale
Fair Value	227,053	257,733
Fair Value, Measurements, Recurring | Asset-backed securities
Debt securities available-for-sale
Fair Value	49,076	74,558
Fair Value, Measurements, Recurring | Collateralized loan obligations (“CLOs”)
Debt securities available-for-sale
Fair Value	597,664	589,950
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Debt securities available-for-sale
Fair Value	606,203	1,032,681
Equity Securities with readily determinable fair value	19,777	22,130
Investments in Tax Credit and Other Investments, Net	19,777	22,130
Derivative
Derivative assets - Fair value	0	0
Netting adjustments	0	0
Derivative asset, after netting	0	0
Derivative liabilities - Fair Value	0	0
Netting adjustments	0	0
Derivative liability, after netting	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign exchange contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Credit contracts
Derivative
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity contracts
Derivative
Derivative assets - Fair value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commodity contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury securities
Debt securities available-for-sale
Fair Value	606,203	1,032,681
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government agency and U.S. government-sponsored enterprise debt securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal securities:
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-agency commercial mortgage-backed Securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-agency residential mortgage-backed Securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate debt securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign government bonds
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateralized loan obligations (“CLOs”)
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Debt securities available-for-sale
Fair Value	5,428,790	8,932,672
Equity Securities with readily determinable fair value	4,177	4,474
Investments in Tax Credit and Other Investments, Net	4,177	4,474
Derivative
Derivative assets - Fair value	755,005	483,969
Netting adjustments	(614,783)	(100,953)
Derivative asset, after netting	140,222	383,016
Derivative liabilities - Fair Value	887,264	390,171
Netting adjustments	(242,745)	(232,727)
Derivative liability, after netting	644,519	157,444
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Interest rate contracts
Derivative
Derivative assets - Fair value	440,283	240,222
Derivative liabilities - Fair Value	584,516	180,130
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Foreign exchange contracts
Derivative
Derivative assets - Fair value	53,109	21,033
Derivative liabilities - Fair Value	44,117	15,333
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Credit contracts
Derivative
Derivative liabilities - Fair Value	23	141
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Equity contracts
Derivative
Derivative assets - Fair value	0	5
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Commodity contracts
Derivative
Derivative assets - Fair value	261,613	222,709
Derivative liabilities - Fair Value	258,608	194,567
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Treasury securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. government agency and U.S. government-sponsored enterprise debt securities
Debt securities available-for-sale
Fair Value	461,607	1,301,971
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Debt securities available-for-sale
Fair Value	500,269	1,228,980
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Debt securities available-for-sale
Fair Value	1,762,195	2,928,283
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Municipal securities:
Debt securities available-for-sale
Fair Value	257,099	523,158
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Non-agency commercial mortgage-backed Securities
Debt securities available-for-sale
Fair Value	398,329	496,443
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Non-agency residential mortgage-backed Securities
Debt securities available-for-sale
Fair Value	649,224	881,931
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Corporate debt securities
Debt securities available-for-sale
Fair Value	526,274	649,665
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Foreign government bonds
Debt securities available-for-sale
Fair Value	227,053	257,733
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Asset-backed securities
Debt securities available-for-sale
Fair Value	49,076	74,558
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Collateralized loan obligations (“CLOs”)
Debt securities available-for-sale
Fair Value	597,664	589,950
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Debt securities available-for-sale
Fair Value	0	0
Equity Securities with readily determinable fair value	0	0
Investments in Tax Credit and Other Investments, Net	0	0
Derivative
Derivative assets - Fair value	323	215
Netting adjustments	0	0
Derivative asset, after netting	323	215
Derivative liabilities - Fair Value	0	0
Netting adjustments	0	0
Derivative liability, after netting	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Interest rate contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Foreign exchange contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Credit contracts
Derivative
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity contracts
Derivative
Derivative assets - Fair value	323	215
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Commodity contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | U.S. Treasury securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | U.S. government agency and U.S. government-sponsored enterprise debt securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Municipal securities:
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Non-agency commercial mortgage-backed Securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Non-agency residential mortgage-backed Securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Corporate debt securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Foreign government bonds
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Asset-backed securities
Debt securities available-for-sale
Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Collateralized loan obligations (“CLOs”)
Debt securities available-for-sale
Fair Value	$ 0	$ 0

Fair Value Measurement and Fa_4

Fair Value Measurement and Fair Value of Financial Instruments - Reconciliation of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of the beginning and ending balances for major asset categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Lending fees
Equity contracts
Reconciliation of the beginning and ending balances for major asset categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Total unrealized (losses) gains for the period included in earnings	$ 17	$ (44)	$ 8,200
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity contracts
Reconciliation of the beginning and ending balances for major asset categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance	215	273	421
Total gains included in earnings	17	32	8,225
Issuances	91	12	0
Settlements	0	(96)	0
Transfers out of Level 3	0	(6)	(8,373)
Ending balance	$ 323	$ 215	$ 273

Fair Value Measurement and Fa_5

Fair Value Measurement and Fair Value of Financial Instruments - Quantitative Information for Significant Unobservable Inputs (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Quantitative information
Derivative assets - Fair value	$ 755,328	$ 484,184
Fair Value, Measurements, Recurring
Quantitative information
Derivative assets - Fair value	755,328	484,184
Fair Value, Measurements, Recurring | Equity contracts
Quantitative information
Derivative assets - Fair value	323	220
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Quantitative information
Derivative assets - Fair value	323	215
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity contracts
Quantitative information
Derivative assets - Fair value	323	215
Fair Value, Measurements, Nonrecurring
Quantitative information
Loans held-for-investment, Fair value	72,614	126,984
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Quantitative information
Loans held-for-investment, Fair value	72,614	126,984
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Discounted cash flows
Quantitative information
Loans held-for-investment, Fair value	23,322	64,919
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Valuation Technique, Fair Value Of Collateral, Discount
Quantitative information
Loans held-for-investment, Fair value	17,912	38,537
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Valuation Technique, Fair Value Of Valuation Technique, Fair Value Of Property, Selling Cost
Quantitative information
Loans held-for-investment, Fair value	$ 31,380	$ 23,528
Equity volatility | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity contracts | Black-Scholes option pricing model | Minimum
Quantitative information
Equity contracts, measurement input	42%	44%
Equity volatility | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity contracts | Black-Scholes option pricing model | Maximum
Quantitative information
Equity contracts, measurement input	60%	54%
Equity volatility | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity contracts | Black-Scholes option pricing model | Weighted Average
Quantitative information
Equity contracts, measurement input	54%	49%
Liquidity discount | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity contracts
Quantitative information
Equity contracts, measurement input	47%	47%
Liquidity discount | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity contracts | Weighted Average
Quantitative information
Equity contracts, measurement input	47%	47%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Minimum
Quantitative information
Loans held-for-investment, measurement input	4%	4%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Maximum
Quantitative information
Loans held-for-investment, measurement input	6%	15%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Weighted Average
Quantitative information
Loans held-for-investment, measurement input	4%	7%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Valuation Technique, Fair Value Of Collateral, Discount | Minimum
Quantitative information
Loans held-for-investment, measurement input	15%	15%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Valuation Technique, Fair Value Of Collateral, Discount | Maximum
Quantitative information
Loans held-for-investment, measurement input	75%	75%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Valuation Technique, Fair Value Of Collateral, Discount | Weighted Average
Quantitative information
Loans held-for-investment, measurement input	37%	41%
Selling cost | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Valuation Technique, Fair Value Of Valuation Technique, Fair Value Of Property, Selling Cost
Quantitative information
Loans held-for-investment, measurement input	8%	8%
Selling cost | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Valuation Technique, Fair Value Of Valuation Technique, Fair Value Of Property, Selling Cost | Weighted Average
Quantitative information
Loans held-for-investment, measurement input	8%	8%

Fair Value Measurement and Fa_6

Fair Value Measurement and Fair Value of Financial Instruments - Carrying Amounts of Assets That Were Still Held and Had Fair Value Changes Measured on a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	$ 72,614	$ 126,984
Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	71,391	124,240
Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	40,011	102,349
Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	31,380	21,891
Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	1,223	2,744
Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	1,223	2,744
Other nonperforming assets
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure		391
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other nonperforming assets
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure		391
Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Significant Other Observable Inputs (Level 2) | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Significant Other Observable Inputs (Level 2) | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Significant Other Observable Inputs (Level 2) | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Significant Other Observable Inputs (Level 2) | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Significant Other Observable Inputs (Level 2) | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	0	0
Significant Other Observable Inputs (Level 2) | Other nonperforming assets
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure		0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	72,614	126,984
Significant Unobservable Inputs (Level 3) | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	71,391	124,240
Significant Unobservable Inputs (Level 3) | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	40,011	102,349
Significant Unobservable Inputs (Level 3) | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	31,380	21,891
Significant Unobservable Inputs (Level 3) | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	1,223	2,744
Significant Unobservable Inputs (Level 3) | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Total loans held-for-investment	$ 1,223	2,744
Significant Unobservable Inputs (Level 3) | Other nonperforming assets
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure		$ 0

Fair Value Measurement and Fa_7

Fair Value Measurement and Fair Value of Financial Instruments - Increase (Decrease) in Value of Assets Measured on a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loans held-for-investment
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	$ (32,928)	$ (19,815)	$ (57,127)
Loans held-for-investment | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(33,094)	(19,811)	(59,443)
Loans held-for-investment | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(25,996)	(9,580)	(48,154)
Loans held-for-investment | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(7,098)	(10,231)	(11,289)
Loans held-for-investment | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	166	(4)	2,316
Loans held-for-investment | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	166	(4)	(175)
Loans held-for-investment | Consumer Lending | Other consumer
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	0	0	2,491
Investments in tax credit and other investments, net
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	469	877	(3,868)
OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	0	0	(3,680)
Other nonperforming assets
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	$ (6,861)	$ (4,241)	$ 0

Fair Value Measurement and Fa_8

Fair Value Measurement and Fair Value of Financial Instruments - Carrying and Fair Values Estimates per the Fair Value Hierarchy of Financial Instruments on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financial assets:
Cash and cash equivalents	$ 3,481,784	$ 3,912,935
Interest-bearing deposits with banks	139,021	736,492
Resale agreements	792,192	2,353,503
HTM debt securities	3,001,868	0
Restricted equity securities, at cost	78,624	77,434
Loans held-for-investment, net	47,606,785	41,152,202
Financial liabilities:
Time deposits	13,330,533
FHLB advances	0	249,331
Repurchase agreements	300,000	300,000
Carrying Amount
Financial assets:
Cash and cash equivalents	3,481,784	3,912,935
Interest-bearing deposits with banks	139,021	736,492
Resale agreements	792,192	2,353,503
HTM debt securities	3,001,868
Restricted equity securities, at cost	78,624	77,434
Loans held-for-sale	25,644	635
Loans held-for-investment, net	47,606,785	41,152,202
Mortgage servicing rights	6,235	5,706
Accrued interest receivable	263,430	159,833
Financial liabilities:
Demand, checking, savings and money market deposits	42,637,316	45,388,550
Time deposits	13,330,533	7,961,982
FHLB advances		249,331
Repurchase agreements	300,000	300,000
Long-term debt	147,950	147,658
Accrued interest payable	37,198	11,435
Estimated Fair Value
Financial assets:
Cash and cash equivalents	3,481,784	3,912,935
Interest-bearing deposits with banks	139,021	736,492
Resale agreements	693,656	2,335,901
HTM debt securities	2,455,171
Restricted equity securities, at cost	78,624	77,434
Loans held-for-sale	25,644	635
Loans held-for-investment, net	46,670,690	41,199,599
Mortgage servicing rights	10,917	9,104
Accrued interest receivable	263,430	159,833
Financial liabilities:
Demand, checking, savings and money market deposits	42,637,316	45,388,550
Time deposits	13,228,777	7,966,116
FHLB advances		250,372
Repurchase agreements	304,097	310,525
Long-term debt	143,483	151,020
Accrued interest payable	37,198	11,435
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	3,481,784	3,912,935
Interest-bearing deposits with banks	0	0
Resale agreements	0	0
HTM debt securities	471,469
Restricted equity securities, at cost	0	0
Loans held-for-sale	0	0
Loans held-for-investment, net	0	0
Mortgage servicing rights	0	0
Accrued interest receivable	0	0
Financial liabilities:
Demand, checking, savings and money market deposits	0	0
Time deposits	0	0
FHLB advances		0
Repurchase agreements	0	0
Long-term debt	0	0
Accrued interest payable	0	0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and cash equivalents	0	0
Interest-bearing deposits with banks	139,021	736,492
Resale agreements	693,656	2,335,901
HTM debt securities	1,983,702
Restricted equity securities, at cost	78,624	77,434
Loans held-for-sale	25,644	635
Loans held-for-investment, net	0	0
Mortgage servicing rights	0	0
Accrued interest receivable	263,430	159,833
Financial liabilities:
Demand, checking, savings and money market deposits	42,637,316	45,388,550
Time deposits	13,228,777	7,966,116
FHLB advances		250,372
Repurchase agreements	304,097	310,525
Long-term debt	143,483	151,020
Accrued interest payable	37,198	11,435
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	0	0
Interest-bearing deposits with banks	0	0
Resale agreements	0	0
HTM debt securities	0
Restricted equity securities, at cost	0	0
Loans held-for-sale	0	0
Loans held-for-investment, net	46,670,690	41,199,599
Mortgage servicing rights	10,917	9,104
Accrued interest receivable		0
Financial liabilities:
Demand, checking, savings and money market deposits	0	0
Time deposits	0	0
FHLB advances		0
Repurchase agreements	0	0
Long-term debt	0	0
Accrued interest payable	$ 0	$ 0

Assets Purchased under Resale_3

Assets Purchased under Resale Agreements and Sold under Repurchase Agreements - Resale Agreements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Offsetting Assets [Line Items]
Gross resale agreements	$ 760	$ 1,330
Loans purchased under agreements to resell	$ 32.2	$ 1,020
Securities Purchased under Agreements to Resell, Average Yield	2.12%	1.53%	1.94%
Loans Purchased Under Resale Agreements
Offsetting Assets [Line Items]
Weighted average yield (as a percent)	2.16%	1.53%	2.27%

Assets Purchased under Resale_4

Assets Purchased under Resale Agreements and Sold under Repurchase Agreements - Repurchase Agreements (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Amount of securities sold under repurchase agreements
Gross repurchase agreements	$ 300,000,000	$ 300,000,000
Securities sold under agreements to repurchase average rate paid	3.07%	2.61%	3.25%
Repurchase agreements’ extinguishment cost	$ 0	$ 0	$ 8,740,000
Extinguishment of repurchase agreements			$ 150,000,000

Assets Purchased under Resale_5

Assets Purchased under Resale Agreements and Sold under Repurchase Agreements - Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets, Resale Agreements
Gross Amounts of Recognized Assets	$ 792,192	$ 2,353,503
Gross Amounts Offset on the Consolidated Balance Sheet	0	0
Net Amounts of Assets Presented on the Consolidated Balance Sheet	792,192	2,353,503
Gross Amounts  Not Offset on the Consolidated  Balance Sheet
Collateral Received	(701,790)	(2,327,687)
Net Amount	90,402	25,816
Liabilities, Repurchase Agreements
Gross Amounts of Recognized Liabilities	300,000	300,000
Gross Amounts Offset on the Consolidated Balance Sheet	0	0
Net Amounts of Liabilities Presented on the Consolidated Balance Sheet	300,000	300,000
Gross Amounts  Not Offset on the Consolidated  Balance Sheet
Collateral Pledged	(300,000)	(300,000)
Net Amount	$ 0	$ 0

Securities - Schedule of Availa

Securities - Schedule of Available-for-sale and Held-to-maturity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
AFS debt securities:
Amortized Cost	$ 6,879,225	$ 10,087,179
Gross Unrealized Gains		51,025
Gross Unrealized Losses		(172,851)
Fair Value	6,034,993	9,965,353
HTM debt securities
Amortized Cost	3,001,868	0
Fair Value	2,455,171
Total debt securities
Amortized Cost	9,881,093
Gross Unrealized Gains	498
Gross Unrealized Losses	(1,391,427)
Fair Value	8,490,164
Debt securities available for sale
AFS debt securities:
Amortized Cost	6,879,225
Gross Unrealized Gains	498
Gross Unrealized Losses	(844,730)
Fair Value	6,034,993
Held-to-Maturity Securities
HTM debt securities
Amortized Cost	3,001,868
Gross Unrealized Gains	0
Gross Unrealized Losses	(546,697)
Fair Value	2,455,171
U.S. Treasury securities
AFS debt securities:
Amortized Cost	676,306	1,049,238
Gross Unrealized Gains		130
Gross Unrealized Losses		(16,687)
Fair Value		1,032,681
U.S. Treasury securities | Debt securities available for sale
AFS debt securities:
Amortized Cost	676,306
Gross Unrealized Gains	0
Gross Unrealized Losses	(70,103)
Fair Value	606,203
U.S. Treasury securities | Held-to-Maturity Securities
HTM debt securities
Amortized Cost	524,081
Gross Unrealized Gains	0
Gross Unrealized Losses	(52,612)
Fair Value	471,469
U.S. government agency and U.S. government-sponsored enterprise debt securities
AFS debt securities:
Amortized Cost	517,806	1,333,984
Gross Unrealized Gains		2,697
Gross Unrealized Losses		(34,710)
Fair Value		1,301,971
U.S. government agency and U.S. government-sponsored enterprise debt securities | Debt securities available for sale
AFS debt securities:
Amortized Cost	517,806
Gross Unrealized Gains	67
Gross Unrealized Losses	(56,266)
Fair Value	461,607
U.S. government agency and U.S. government-sponsored enterprise debt securities | Held-to-Maturity Securities
HTM debt securities
Amortized Cost	998,972
Gross Unrealized Gains	0
Gross Unrealized Losses	(209,560)
Fair Value	789,412
US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
AFS debt securities:
Amortized Cost		1,242,043
Gross Unrealized Gains		15,791
Gross Unrealized Losses		(28,854)
Fair Value		1,228,980
US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities | Debt securities available for sale
AFS debt securities:
Amortized Cost	577,392
Gross Unrealized Gains	0
Gross Unrealized Losses	(77,123)
Fair Value	500,269
US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities | Held-to-Maturity Securities
HTM debt securities
Amortized Cost	506,965
Gross Unrealized Gains	0
Gross Unrealized Losses	(98,566)
Fair Value	408,399
US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
AFS debt securities:
Amortized Cost		2,968,789
Gross Unrealized Gains		8,629
Gross Unrealized Losses		(49,135)
Fair Value		2,928,283
US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities | Debt securities available for sale
AFS debt securities:
Amortized Cost	2,011,054
Gross Unrealized Gains	41
Gross Unrealized Losses	(248,900)
Fair Value	1,762,195
US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities | Held-to-Maturity Securities
HTM debt securities
Amortized Cost	782,141
Gross Unrealized Gains	0
Gross Unrealized Losses	(148,230)
Fair Value	633,911
Municipal securities:
AFS debt securities:
Amortized Cost	303,884	519,381
Gross Unrealized Gains		10,065
Gross Unrealized Losses		(6,288)
Fair Value		523,158
Municipal securities: | Debt securities available for sale
AFS debt securities:
Amortized Cost	303,884
Gross Unrealized Gains	3
Gross Unrealized Losses	(46,788)
Fair Value	257,099
Municipal securities: | Held-to-Maturity Securities
HTM debt securities
Amortized Cost	189,709
Gross Unrealized Gains	0
Gross Unrealized Losses	(37,729)
Fair Value	151,980
Non-agency commercial mortgage-backed Securities
AFS debt securities:
Amortized Cost		498,920
Gross Unrealized Gains		3,000
Gross Unrealized Losses		(5,477)
Fair Value		496,443
Non-agency commercial mortgage-backed Securities | Debt securities available for sale
AFS debt securities:
Amortized Cost	447,512
Gross Unrealized Gains	213
Gross Unrealized Losses	(49,396)
Fair Value	398,329
Non-agency residential mortgage-backed Securities
AFS debt securities:
Amortized Cost		889,937
Gross Unrealized Gains		971
Gross Unrealized Losses		(8,977)
Fair Value		881,931
Non-agency residential mortgage-backed Securities | Debt securities available for sale
AFS debt securities:
Amortized Cost	762,202
Gross Unrealized Gains	0
Gross Unrealized Losses	(112,978)
Fair Value	649,224
Corporate debt securities
AFS debt securities:
Amortized Cost	673,502	657,516
Gross Unrealized Gains		8,738
Gross Unrealized Losses		(16,589)
Fair Value		649,665
Corporate debt securities | Debt securities available for sale
AFS debt securities:
Amortized Cost	673,502
Gross Unrealized Gains	0
Gross Unrealized Losses	(147,228)
Fair Value	526,274
Foreign government bonds
AFS debt securities:
Amortized Cost	241,165	260,447
Gross Unrealized Gains		767
Gross Unrealized Losses		(3,481)
Fair Value		257,733
Foreign government bonds | Debt securities available for sale
AFS debt securities:
Amortized Cost	241,165
Gross Unrealized Gains	174
Gross Unrealized Losses	(14,286)
Fair Value	227,053
Asset-backed securities
AFS debt securities:
Amortized Cost	51,152	74,674
Gross Unrealized Gains		185
Gross Unrealized Losses		(301)
Fair Value		74,558
Asset-backed securities | Debt securities available for sale
AFS debt securities:
Amortized Cost	51,152
Gross Unrealized Gains	0
Gross Unrealized Losses	(2,076)
Fair Value	49,076
CLOs
AFS debt securities:
Amortized Cost	617,250	592,250
Gross Unrealized Gains		52
Gross Unrealized Losses		(2,352)
Fair Value		$ 589,950
CLOs | Debt securities available for sale
AFS debt securities:
Amortized Cost	617,250
Gross Unrealized Gains	0
Gross Unrealized Losses	(19,586)
Fair Value	$ 597,664

Securities - Narrative (Details

Securities - Narrative (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) security	Dec. 31, 2021 USD ($) security	Dec. 31, 2020 USD ($)
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Fair value of debt securities from AFS to HTM	$ 3,010,000,000
Unrealized losses, net of tax, from transfer of AFS to HTM	$ 113,000,000	$ 113,000,000
AFS and HTM, accrued interest		$ 41,800,000	$ 33,100,000
Number of available-for-sale debt securities in an unrealized loss position | security		559	431
Allowance for credit loss		$ 0	$ 0
Provision for credit losses		0	0	$ 0
HTM securities allowance for credit loss		0
Amortized Cost		9,881,093,000
Asset Pledged as Collateral
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Amortized Cost		$ 794,200,000	$ 803,900,000
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of available-for-sale debt securities in an unrealized loss position | security		263	180
U.S. government agency and U.S. government-sponsored enterprise debt securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of available-for-sale debt securities in an unrealized loss position | security			50
U.S. Treasury securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of available-for-sale debt securities in an unrealized loss position | security		15	21
Corporate debt securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of available-for-sale debt securities in an unrealized loss position | security		68	30
Non-agency mortgage-backed securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of available-for-sale debt securities in an unrealized loss position | security		100

Securities - Continuous Unreali

Securities - Continuous Unrealized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	$ 1,451,466	$ 5,932,965
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(104,682)	(106,229)
Available-for-sale debt securities, More than 12 Months, Fair Value	4,332,275	1,778,987
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(740,048)	(66,622)
Available-for-sale debt securities, Fair Value, Total	5,783,741	7,711,952
Available-for-sale debt securities, Gross Unrealized Loss, Total	(844,730)	(172,851)
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	131,843	935,776
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(8,761)	(14,689)
Available-for-sale debt securities, More than 12 Months, Fair Value	474,360	47,881
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(61,342)	(1,998)
Available-for-sale debt securities, Fair Value, Total	606,203	983,657
Available-for-sale debt securities, Gross Unrealized Loss, Total	(70,103)	(16,687)
U.S. government agency and U.S. government-sponsored enterprise debt securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	97,403	773,647
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(6,902)	(18,000)
Available-for-sale debt securities, More than 12 Months, Fair Value	214,136	402,907
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(49,364)	(16,710)
Available-for-sale debt securities, Fair Value, Total	311,539	1,176,554
Available-for-sale debt securities, Gross Unrealized Loss, Total	(56,266)	(34,710)
US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	252,144	440,734
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(30,029)	(13,589)
Available-for-sale debt securities, More than 12 Months, Fair Value	248,125	257,745
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(47,094)	(15,265)
Available-for-sale debt securities, Fair Value, Total	500,269	698,479
Available-for-sale debt securities, Gross Unrealized Loss, Total	(77,123)	(28,854)
US government agencies And U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	307,536	2,138,542
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(20,346)	(37,691)
Available-for-sale debt securities, More than 12 Months, Fair Value	1,448,658	330,522
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(228,554)	(11,444)
Available-for-sale debt securities, Fair Value, Total	1,756,194	2,469,064
Available-for-sale debt securities, Gross Unrealized Loss, Total	(248,900)	(49,135)
Municipal securities:
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	95,655	177,065
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(10,194)	(5,682)
Available-for-sale debt securities, More than 12 Months, Fair Value	159,439	17,003
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(36,594)	(606)
Available-for-sale debt securities, Fair Value, Total	255,094	194,068
Available-for-sale debt securities, Gross Unrealized Loss, Total	(46,788)	(6,288)
Non-agency commercial mortgage-backed Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	106,184	301,925
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(3,309)	(4,158)
Available-for-sale debt securities, More than 12 Months, Fair Value	282,301	40,013
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(46,087)	(1,319)
Available-for-sale debt securities, Fair Value, Total	388,485	341,938
Available-for-sale debt securities, Gross Unrealized Loss, Total	(49,396)	(5,477)
Non-agency residential mortgage-backed Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	22,715	707,792
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(1,546)	(8,966)
Available-for-sale debt securities, More than 12 Months, Fair Value	626,509	6,431
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(111,432)	(11)
Available-for-sale debt securities, Fair Value, Total	649,224	714,223
Available-for-sale debt securities, Gross Unrealized Loss, Total	(112,978)	(8,977)
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	173,595	183,916
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(17,907)	(3,084)
Available-for-sale debt securities, More than 12 Months, Fair Value	352,679	251,494
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(129,321)	(13,505)
Available-for-sale debt securities, Fair Value, Total	526,274	435,410
Available-for-sale debt securities, Gross Unrealized Loss, Total	(147,228)	(16,589)
Foreign government bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	107,576	27,097
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(429)	(5)
Available-for-sale debt securities, More than 12 Months, Fair Value	36,143	133,279
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(13,857)	(3,476)
Available-for-sale debt securities, Fair Value, Total	143,719	160,376
Available-for-sale debt securities, Gross Unrealized Loss, Total	(14,286)	(3,481)
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	12,450	24,885
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(524)	(301)
Available-for-sale debt securities, More than 12 Months, Fair Value	36,626	0
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(1,552)	0
Available-for-sale debt securities, Fair Value, Total	49,076	24,885
Available-for-sale debt securities, Gross Unrealized Loss, Total	(2,076)	(301)
Collateralized loan obligations (“CLOs”)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	144,365	221,586
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(4,735)	(64)
Available-for-sale debt securities, More than 12 Months, Fair Value	453,299	291,712
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(14,851)	(2,288)
Available-for-sale debt securities, Fair Value, Total	597,664	513,298
Available-for-sale debt securities, Gross Unrealized Loss, Total	$ (19,586)	$ (2,352)

Securities - Realized Gains and

Securities - Realized Gains and Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 1,306	$ 1,568	$ 12,299
Related tax expense	$ 386	$ 464	$ 3,636

Securities - Composition of Int

Securities - Composition of Interest Income on Debt Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Taxable interest	$ 179,720	$ 131,985	$ 75,590
Nontaxable interest	19,186	11,998	6,963
Total interest income on debt securities	$ 198,906	$ 143,983	$ 82,553

Securities - Scheduled Contract

Securities - Scheduled Contractual Maturities of ATM and HTM Debt Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Amortized cost
Within One Year	$ 303,496
After One Year through Five Years	958,127
After Five Years through Ten Years	800,818
After Ten Years	4,816,784
Amortized Cost	6,879,225	$ 10,087,179
Fair value
Within One Year	302,412
After One Year through Five Years	886,140
After Five Years through Ten Years	707,539
After Ten Years	4,138,902
Total	$ 6,034,993
Weighted-Average Yield
Within One Year	3.66%
After One Year through Five Years	2.18%
After Five Years through Ten Years	2.76%
After Ten Years	3.16%
Total	3%
Amortized cost
Within One Year	$ 0
After One Year through Five Years	404,252
After Five Years through Ten Years	471,892
After Ten Years	2,125,724
Total	3,001,868
Fair value
Within One Year	0
After One Year through Five Years	364,360
After Five Years through Ten Years	404,155
After Ten Years	1,686,656
Total	$ 2,455,171
Weighted Average Yield
Within One Year	0%
After One Year through Five Years	1.01%
After Five Years through Ten Years	1.67%
After Ten Years	1.78%
Total	1.66%
U.S. Treasury securities
Amortized cost
Within One Year	$ 0
After One Year through Five Years	576,585
After Five Years through Ten Years	99,721
After Ten Years	0
Amortized Cost	676,306	1,049,238
Fair value
Within One Year	0
After One Year through Five Years	521,174
After Five Years through Ten Years	85,029
After Ten Years	0
Total	$ 606,203
Weighted-Average Yield
Within One Year	0%
After One Year through Five Years	1.28%
After Five Years through Ten Years	0.74%
After Ten Years	0%
Total	1.20%
Amortized cost
Within One Year	$ 0
After One Year through Five Years	404,252
After Five Years through Ten Years	119,829
After Ten Years	0
Total	524,081
Fair value
Within One Year	0
After One Year through Five Years	364,360
After Five Years through Ten Years	107,109
After Ten Years	0
Total	$ 471,469
Weighted Average Yield
Within One Year	0%
After One Year through Five Years	1.01%
After Five Years through Ten Years	1.18%
After Ten Years	0%
Total	1.05%
U.S. government agency and U.S. government-sponsored enterprise debt securities
Amortized cost
Within One Year	$ 100,000
After One Year through Five Years	149,772
After Five Years through Ten Years	100,000
After Ten Years	168,034
Amortized Cost	517,806	1,333,984
Fair value
Within One Year	99,939
After One Year through Five Years	144,796
After Five Years through Ten Years	81,973
After Ten Years	134,899
Total	$ 461,607
Weighted-Average Yield
Within One Year	4.97%
After One Year through Five Years	3.71%
After Five Years through Ten Years	1.26%
After Ten Years	2.10%
Total	2.96%
Amortized cost
Within One Year	$ 0
After One Year through Five Years	0
After Five Years through Ten Years	255,967
After Ten Years	743,005
Total	998,972
Fair value
Within One Year	0
After One Year through Five Years	0
After Five Years through Ten Years	216,340
After Ten Years	573,072
Total	$ 789,412
Weighted Average Yield
Within One Year	0%
After One Year through Five Years	0%
After Five Years through Ten Years	1.94%
After Ten Years	1.88%
Total	1.90%
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities
Amortized cost
Within One Year	$ 0
After One Year through Five Years	31,165
After Five Years through Ten Years	161,960
After Ten Years	2,395,321
Amortized Cost	2,588,446
Fair value
Within One Year	0
After One Year through Five Years	29,643
After Five Years through Ten Years	146,737
After Ten Years	2,086,084
Total	$ 2,262,464
Weighted-Average Yield
Within One Year	0%
After One Year through Five Years	3.20%
After Five Years through Ten Years	2.69%
After Ten Years	3.22%
Total	3.19%
Amortized cost
Within One Year	$ 0
After One Year through Five Years	0
After Five Years through Ten Years	96,096
After Ten Years	1,193,010
Total	1,289,106
Fair value
Within One Year	0
After One Year through Five Years	0
After Five Years through Ten Years	80,706
After Ten Years	961,604
Total	$ 1,042,310
Weighted Average Yield
Within One Year	0%
After One Year through Five Years	0%
After Five Years through Ten Years	1.56%
After Ten Years	1.68%
Total	1.67%
Municipal securities:
Amortized cost
Within One Year	$ 2,307
After One Year through Five Years	34,865
After Five Years through Ten Years	6,847
After Ten Years	259,865
Amortized Cost	303,884	519,381
Fair value
Within One Year	2,283
After One Year through Five Years	32,160
After Five Years through Ten Years	5,780
After Ten Years	216,876
Total	$ 257,099
Weighted-Average Yield
Within One Year	2.21%
After One Year through Five Years	2.40%
After Five Years through Ten Years	1.85%
After Ten Years	2.25%
Total	2.26%
Amortized cost
Within One Year	$ 0
After One Year through Five Years	0
After Five Years through Ten Years	0
After Ten Years	189,709
Total	189,709
Fair value
Within One Year	0
After One Year through Five Years	0
After Five Years through Ten Years	0
After Ten Years	151,980
Total	$ 151,980
Weighted Average Yield
Within One Year	0%
After One Year through Five Years	0%
After Five Years through Ten Years	0%
After Ten Years	1.98%
Total	1.98%
Non-agency mortgage-backed securities
Amortized cost
Within One Year	$ 57,190
After One Year through Five Years	158,574
After Five Years through Ten Years	22,788
After Ten Years	971,162
Amortized Cost	1,209,714
Fair value
Within One Year	56,222
After One Year through Five Years	151,239
After Five Years through Ten Years	22,000
After Ten Years	818,092
Total	$ 1,047,553
Weighted-Average Yield
Within One Year	4.93%
After One Year through Five Years	3.78%
After Five Years through Ten Years	0.84%
After Ten Years	2.45%
Total	2.72%
Corporate debt securities
Amortized cost
Within One Year	$ 10,000
After One Year through Five Years	0
After Five Years through Ten Years	334,502
After Ten Years	329,000
Amortized Cost	673,502	657,516
Fair value
Within One Year	9,856
After One Year through Five Years	0
After Five Years through Ten Years	292,049
After Ten Years	224,369
Total	$ 526,274
Weighted-Average Yield
Within One Year	3.77%
After One Year through Five Years	0%
After Five Years through Ten Years	3.59%
After Ten Years	1.98%
Total	2.81%
Foreign government bonds
Amortized cost
Within One Year	$ 133,999
After One Year through Five Years	7,166
After Five Years through Ten Years	50,000
After Ten Years	50,000
Amortized Cost	241,165	260,447
Fair value
Within One Year	134,112
After One Year through Five Years	7,128
After Five Years through Ten Years	49,670
After Ten Years	36,143
Total	$ 227,053
Weighted-Average Yield
Within One Year	2.15%
After One Year through Five Years	2.24%
After Five Years through Ten Years	4.18%
After Ten Years	1.50%
Total	2.44%
Asset-backed securities
Amortized cost
Within One Year	$ 0
After One Year through Five Years	0
After Five Years through Ten Years	0
After Ten Years	51,152
Amortized Cost	51,152	74,674
Fair value
Within One Year	0
After One Year through Five Years	0
After Five Years through Ten Years	0
After Ten Years	49,076
Total	$ 49,076
Weighted-Average Yield
Within One Year	0%
After One Year through Five Years	0%
After Five Years through Ten Years	0%
After Ten Years	5.16%
Total	5.16%
Collateralized loan obligations (“CLOs”)
Amortized cost
Within One Year	$ 0
After One Year through Five Years	0
After Five Years through Ten Years	25,000
After Ten Years	592,250
Amortized Cost	617,250	$ 592,250
Fair value
Within One Year	0
After One Year through Five Years	0
After Five Years through Ten Years	24,301
After Ten Years	573,363
Total	$ 597,664
Weighted-Average Yield
Within One Year	0%
After One Year through Five Years	0%
After Five Years through Ten Years	5.23%
After Ten Years	5.40%
Total	5.40%

Securities - Restricted Equity

Securities - Restricted Equity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
FRBSF stock	$ 61,374	$ 60,184
FHLB stock	17,250	17,250
Total restricted equity securities	$ 78,624	$ 77,434

Derivatives - Notional and Fair

Derivatives - Notional and Fair Values (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Derivative Assets
Derivative assets - Fair value	$ 755,328	$ 484,184
Less: Master Netting Arrangements	(242,745)	(58,679)
Less: Cash collateral received or paid	(372,038)	(42,274)
Derivative asset, after netting	140,545	383,231
Derivative Liabilities
Derivative liabilities - Fair Value	887,264	390,171
Less: Master Netting Arrangements	(242,745)	(58,679)
Less: Cash collateral received/paid	0	(174,048)
Derivative liability, after netting	644,519	157,444
Derivative instruments designated as hedging instruments
Derivative Instruments
Notional Amount	3,534,832	361,531
Derivative Assets
Derivative assets - Fair value	19,045	0
Derivative Liabilities
Derivative liabilities - Fair Value	19,687	282
Derivatives not designated as hedging instruments:
Derivative Instruments
Notional Amount	20,056,255	19,522,661
Derivative Assets
Derivative assets - Fair value	736,283	484,184
Derivative Liabilities
Derivative liabilities - Fair Value	867,577	389,889
Interest rate contracts | Derivatives not designated as hedging instruments:
Derivative Instruments
Notional Amount	16,932,414	17,575,420
Derivative Assets
Derivative assets - Fair value	426,828	240,222
Derivative Liabilities
Derivative liabilities - Fair Value	564,829	179,905
Interest rate contracts | Cash Flow Hedging | Derivative instruments designated as hedging instruments
Derivative Instruments
Notional Amount	3,450,000	275,000
Derivative Assets
Derivative assets - Fair value	13,455	0
Derivative Liabilities
Derivative liabilities - Fair Value	19,687	57
Foreign exchange contracts | Derivatives not designated as hedging instruments:
Derivative Instruments
Notional Amount	2,982,891	1,874,681
Derivative Assets
Derivative assets - Fair value	47,519	21,033
Derivative Liabilities
Derivative liabilities - Fair Value	44,117	15,276
Foreign exchange contracts | Net investment hedges | Derivative instruments designated as hedging instruments
Derivative Instruments
Notional Amount	84,832	86,531
Derivative Assets
Derivative assets - Fair value	5,590	0
Derivative Liabilities
Derivative liabilities - Fair Value	0	225
Commodity contracts | Derivatives not designated as hedging instruments:
Derivative Instruments
Notional Amount	0	0
Derivative Assets
Derivative assets - Fair value	261,613	222,709
Derivative Liabilities
Derivative liabilities - Fair Value	258,608	194,567
Credit Risk Contract [Member] | Derivatives not designated as hedging instruments:
Derivative Instruments
Notional Amount	140,950	72,560
Derivative Assets
Derivative assets - Fair value	0	0
Derivative Liabilities
Derivative liabilities - Fair Value	23	141
Equity contracts | Derivatives not designated as hedging instruments:
Derivative Instruments
Notional Amount	0	0
Derivative Assets
Derivative assets - Fair value	323	220
Derivative Liabilities
Derivative liabilities - Fair Value	$ 0	$ 0

Derivatives - Net Gains (Losses

Derivatives - Net Gains (Losses) on Derivatives Designated as Hedges (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Derivative assets - Fair value	$ 755,328	$ 484,184
Derivative instruments designated as hedging instruments
Derivative [Line Items]
Derivative assets - Fair value	19,045	0
Interest rate contracts | Fair Value Hedging | Derivative instruments designated as hedging instruments
Derivative [Line Items]
Derivative assets - Fair value	$ 0	$ 0

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) Boe MMBTU company	Dec. 31, 2021 USD ($) Boe MMBTU company	Dec. 31, 2020 USD ($)
Derivative [Line Items]
Derivative assets - Fair value	$ 755,328	$ 484,184
Derivative liabilities - Fair Value	$ 887,264	$ 390,171
Crude Oil
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	12,005	17,924
Natural Gas
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	247,704	218,770
Derivatives not designated as hedging instruments:
Derivative [Line Items]
Notional amount	$ 20,056,255	$ 19,522,661
Derivative assets - Fair value	736,283	484,184
Derivative liabilities - Fair Value	867,577	389,889
Derivative instruments designated as hedging instruments
Derivative [Line Items]
Notional amount	3,534,832	361,531
Derivative assets - Fair value	19,045	0
Derivative liabilities - Fair Value	19,687	282
Fair Value Hedging | Derivative instruments designated as hedging instruments | Interest Expense | Certificates of deposits
Derivative [Line Items]
Gains (losses) recognized in interest expense			$ (1,600)
Interest Rate Swap [Member] | Fair Value Hedging | Derivative instruments designated as hedging instruments | Interest Expense
Derivative [Line Items]
Gains (losses) recognized in interest expense			$ 3,100
Interest rate contracts | Derivatives not designated as hedging instruments:
Derivative [Line Items]
Notional amount	16,932,414	17,575,420
Derivative assets - Fair value	426,828	240,222
Derivative liabilities - Fair Value	564,829	179,905
Interest rate contracts | Derivatives not designated as hedging instruments: | London Clearing House
Derivative [Line Items]
Derivative assets - Fair value	163,400	20,400
Derivative liabilities - Fair Value	12,100	105,700
Interest rate contracts | Cash Flow Hedging | Derivative instruments designated as hedging instruments
Derivative [Line Items]
Notional amount	3,450,000	275,000
Net unrealized losses, net of tax, recorded in AOCI expected to be reclassified into earnings during the next 12 months	(41,000)
Derivative assets - Fair value	13,455	0
Derivative liabilities - Fair Value	19,687	57
Interest rate contracts | Fair Value Hedging | Derivative instruments designated as hedging instruments
Derivative [Line Items]
Derivative assets - Fair value	0	0
Credit Risk Contract [Member] | Derivatives not designated as hedging instruments:
Derivative [Line Items]
Notional amount	$ 140,950	$ 72,560
Weighted average remaining maturity of outstanding RPAs	2 years 4 months 24 days	3 years 2 months 12 days
Derivative assets - Fair value	$ 0	$ 0
Derivative liabilities - Fair Value	23	141
Credit Risk Contract [Member] | Derivatives not designated as hedging instruments: | RPAs - protection sold
Derivative [Line Items]
Maximum exposure of RPAs with protection sold	$ 0	$ 3,200
Equity, Public Companies | Derivatives not designated as hedging instruments:
Derivative [Line Items]
Number of companies that Issued the equity contracts (Issuers Portion Only) | company	1	1
Equity, Private Companies | Derivatives not designated as hedging instruments:
Derivative [Line Items]
Number of companies that Issued the equity contracts (Issuers Portion Only) | company	13	12
Credit-Risk-Related Contingent Features
Derivative [Line Items]
Aggregate fair value of derivative instruments in net liability position	$ 2,600	$ 66,800
Associated posted collateral	1,100	66,600
Foreign exchange contracts | Derivatives not designated as hedging instruments:
Derivative [Line Items]
Notional amount	2,982,891	1,874,681
Derivative assets - Fair value	47,519	21,033
Derivative liabilities - Fair Value	$ 44,117	$ 15,276
Foreign exchange contracts | Derivatives not designated as hedging instruments: | Maximum
Derivative [Line Items]
Original maturity (in years)	1 year	1 year
Commercial Banking | Interest Rate Swap [Member] | Cash Flow Hedging | Derivative instruments designated as hedging instruments
Derivative [Line Items]
Notional amount	$ 3,250,000
Borrowings | Interest Rate Swap [Member] | Cash Flow Hedging | Derivative instruments designated as hedging instruments
Derivative [Line Items]
Notional amount	$ 200,000

Derivatives - Gains (Losses) in

Derivatives - Gains (Losses) in Cash Flow Hedge and Net Investment Hedge (Details) - Derivative instruments designated as hedging instruments - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flow Hedging | Interest rate contracts
Derivative [Line Items]
(losses) gains recognized in AOCI	$ (74,069)	$ 1,210	$ (1,604)
(Losses) gains reclassified from AOCI to earnings	(4,004)	(868)	113
Cash Flow Hedging | Interest rate contracts | Interest and dividend income (for cash flow hedges on loans)
Derivative [Line Items]
(Losses) gains reclassified from AOCI to earnings	(7,204)	0	0
Cash Flow Hedging | Interest rate contracts | Interest Expense
Derivative [Line Items]
(Losses) gains reclassified from AOCI to earnings	3,200	(868)	113
Net investment hedges | Foreign exchange contracts
Derivative [Line Items]
Gains (losses) recognized in AOCI	$ 4,509	$ (4,558)	$ (6,700)

Derivatives - Derivatives Not D

Derivatives - Derivatives Not Designated as Hedging Instruments (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) Boe MMBTU	Dec. 31, 2021 USD ($) Boe MMBTU
Derivative [Line Items]
Derivative assets - Fair value	$ 755,328	$ 484,184
Derivative liabilities - Fair Value	$ 887,264	$ 390,171
Crude Oil
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	12,005	17,924
Natural Gas
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	247,704	218,770
Customer-related positions:
Derivative [Line Items]
Notional amount	$ 10,158,784	$ 9,760,142
Derivative assets - Fair value	27,146	227,723
Derivative liabilities - Fair Value	592,060	51,903
Other economic hedges:
Derivative [Line Items]
Notional amount	9,756,521	9,689,959
Derivative assets - Fair value	447,201	33,532
Derivative liabilities - Fair Value	16,886	143,278
Interest rate contracts | Customer-related positions:
Derivative [Line Items]
Notional amount	8,420,422	8,773,091
Derivative assets - Fair value	1,438	212,999
Derivative liabilities - Fair Value	561,547	42,440
Interest rate contracts | Other economic hedges:
Derivative [Line Items]
Notional amount	8,511,992	8,802,329
Derivative assets - Fair value	425,390	27,223
Derivative liabilities - Fair Value	3,282	137,465
Interest rate contracts | Swaps | Customer-related positions:
Derivative [Line Items]
Notional amount	6,656,491	7,460,836
Derivative assets - Fair value	1,438	211,727
Derivative liabilities - Fair Value	521,719	39,650
Interest rate contracts | Swaps | Other economic hedges:
Derivative [Line Items]
Notional amount	6,683,828	7,490,074
Derivative assets - Fair value	384,201	24,418
Derivative liabilities - Fair Value	2,047	136,190
Interest rate contracts | Collars and corridors | Customer-related positions:
Derivative [Line Items]
Notional amount	215,773	194,181
Derivative assets - Fair value	0	1,272
Derivative liabilities - Fair Value	8,924	642
Interest rate contracts | Collars and corridors | Other economic hedges:
Derivative [Line Items]
Notional amount	215,772	194,181
Derivative assets - Fair value	8,956	646
Derivative liabilities - Fair Value	0	1,275
Interest rate contracts | Purchased options | Other economic hedges:
Derivative [Line Items]
Notional amount	1,580,275	1,118,074
Derivative assets - Fair value	32,233	2,159
Derivative liabilities - Fair Value	0	0
Interest rate contracts | Written options | Customer-related positions:
Derivative [Line Items]
Notional amount	1,548,158	1,118,074
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	30,904	2,148
Interest rate contracts | Written options | Other economic hedges:
Derivative [Line Items]
Notional amount	32,117	0
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	1,235	0
Commodity contracts | Customer-related positions:
Derivative [Line Items]
Derivative assets - Fair value	171,082	165,246
Derivative liabilities - Fair Value	100,333	4,399
Commodity contracts | Customer-related positions: | Crude Oil
Derivative [Line Items]
Derivative assets - Fair value	56,551	105,155
Derivative liabilities - Fair Value	$ 8,808	$ 166
Derivative, nonmonetary notional amount, energy measure | Boe	5,476	7,519
Commodity contracts | Customer-related positions: | Natural Gas
Derivative [Line Items]
Derivative assets - Fair value	$ 114,531	$ 60,091
Derivative liabilities - Fair Value	$ 91,525	$ 4,233
Derivative, nonmonetary notional amount, energy measure | MMBTU	124,662	83,274
Commodity contracts | Other economic hedges:
Derivative [Line Items]
Derivative assets - Fair value	$ 90,531	$ 57,463
Derivative liabilities - Fair Value	158,275	190,168
Commodity contracts | Other economic hedges: | Crude Oil
Derivative [Line Items]
Derivative assets - Fair value	8,313	27,524
Derivative liabilities - Fair Value	$ 49,432	$ 116,203
Derivative, nonmonetary notional amount, energy measure | Boe	6,529	10,405
Commodity contracts | Other economic hedges: | Natural Gas
Derivative [Line Items]
Derivative assets - Fair value	$ 82,218	$ 29,939
Derivative liabilities - Fair Value	$ 108,843	$ 73,965
Derivative, nonmonetary notional amount, energy measure | MMBTU	123,042	135,496
Commodity contracts | Swaps | Customer-related positions: | Crude Oil
Derivative [Line Items]
Derivative assets - Fair value	$ 39,955	$ 71,242
Derivative liabilities - Fair Value	$ 6,178	$ 60
Derivative, nonmonetary notional amount, energy measure | Boe	2,465	4,682
Commodity contracts | Swaps | Customer-related positions: | Natural Gas
Derivative [Line Items]
Derivative assets - Fair value	$ 112,314	$ 49,188
Derivative liabilities - Fair Value	$ 73,208	$ 3,775
Derivative, nonmonetary notional amount, energy measure | MMBTU	92,590	58,959
Commodity contracts | Swaps | Other economic hedges: | Crude Oil
Derivative [Line Items]
Derivative assets - Fair value	$ 6,935	$ 27,524
Derivative liabilities - Fair Value	$ 36,060	$ 82,723
Derivative, nonmonetary notional amount, energy measure | Boe	2,587	7,517
Commodity contracts | Swaps | Other economic hedges: | Natural Gas
Derivative [Line Items]
Derivative assets - Fair value	$ 69,767	$ 28,803
Derivative liabilities - Fair Value	$ 106,883	$ 63,029
Derivative, nonmonetary notional amount, energy measure | MMBTU	91,900	109,567
Commodity contracts | Collars | Customer-related positions: | Crude Oil
Derivative [Line Items]
Derivative assets - Fair value	$ 16,038	$ 33,826
Derivative liabilities - Fair Value	$ 2,630	$ 106
Derivative, nonmonetary notional amount, energy measure | Boe	3,011	2,837
Commodity contracts | Collars | Customer-related positions: | Natural Gas
Derivative [Line Items]
Derivative assets - Fair value	$ 2,217	$ 10,903
Derivative liabilities - Fair Value	$ 18,317	$ 458
Derivative, nonmonetary notional amount, energy measure | MMBTU	32,072	24,315
Commodity contracts | Collars | Other economic hedges: | Crude Oil
Derivative [Line Items]
Derivative assets - Fair value	$ 1,378	$ 0
Derivative liabilities - Fair Value	$ 12,856	$ 33,399
Derivative, nonmonetary notional amount, energy measure | Boe	3,942	2,888
Commodity contracts | Collars | Other economic hedges: | Natural Gas
Derivative [Line Items]
Derivative assets - Fair value	$ 12,451	$ 1,136
Derivative liabilities - Fair Value	$ 1,960	$ 10,936
Derivative, nonmonetary notional amount, energy measure | MMBTU	31,142	25,929
Commodity contracts | Written Options | Customer-related positions: | Crude Oil
Derivative [Line Items]
Derivative assets - Fair value	$ 558	$ 87
Derivative liabilities - Fair Value	$ 0	$ 0
Derivative, nonmonetary notional amount, energy measure | Boe	0	0
Commodity contracts | Purchased options | Other economic hedges: | Crude Oil
Derivative [Line Items]
Derivative assets - Fair value	$ 0	$ 0
Derivative liabilities - Fair Value	$ 516	$ 81
Derivative, nonmonetary notional amount, energy measure | Boe	0	0
Foreign exchange contracts | Customer-related positions:
Derivative [Line Items]
Notional amount	$ 1,738,362	$ 987,051
Derivative assets - Fair value	25,708	14,724
Derivative liabilities - Fair Value	30,513	9,463
Foreign exchange contracts | Other economic hedges:
Derivative [Line Items]
Notional amount	1,244,529	887,630
Derivative assets - Fair value	21,811	6,309
Derivative liabilities - Fair Value	13,604	5,813
Foreign exchange contracts | Swaps | Customer-related positions:
Derivative [Line Items]
Notional amount	623,143	66,474
Derivative assets - Fair value	6,629	1,034
Derivative liabilities - Fair Value	12,178	17
Foreign exchange contracts | Swaps | Other economic hedges:
Derivative [Line Items]
Notional amount	1,044,900	599,654
Derivative assets - Fair value	18,516	4,745
Derivative liabilities - Fair Value	11,447	3,116
Foreign exchange contracts | Forwards and spot | Customer-related positions:
Derivative [Line Items]
Notional amount	993,588	900,290
Derivative assets - Fair value	17,009	13,688
Derivative liabilities - Fair Value	18,090	9,446
Foreign exchange contracts | Forwards and spot | Other economic hedges:
Derivative [Line Items]
Notional amount	77,998	267,689
Derivative assets - Fair value	3,050	1,564
Derivative liabilities - Fair Value	87	2,695
Foreign exchange contracts | Other | Customer-related positions:
Derivative [Line Items]
Notional amount	121,631	20,287
Derivative assets - Fair value	2,070	2
Derivative liabilities - Fair Value	245	0
Foreign exchange contracts | Other | Other economic hedges:
Derivative [Line Items]
Notional amount	121,631	20,287
Derivative assets - Fair value	245	0
Derivative liabilities - Fair Value	$ 2,070	$ 2

Derivatives - Net Gains (Loss_2

Derivatives - Net Gains (Losses) on Derivatives Not Designated as Hedging Instrument (Details) - Derivatives not designated as hedging instruments: - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	$ 28,021	$ 57,877	$ 25,563
Interest rate contracts | Interest rate contracts and other derivative income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	13,905	11,493	(8,637)
Foreign exchange contracts | Foreign exchange income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	13,799	45,921	23,215
Credit contracts | Interest rate contracts and other derivative income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	118	139	(5)
Equity contracts | Lending fees
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	151	382	11,025
Commodity contracts | Interest rate contracts and other derivative income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	$ 48	$ (58)	$ (35)

Derivatives - Offsetting of Der

Derivatives - Offsetting of Derivatives (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets
Derivative assets - Fair value	$ 755,328	$ 484,184
Less: Master Netting Arrangements	(242,745)	(58,679)
Less: Cash collateral received or paid	(372,038)	(42,274)
Derivative asset, after netting	140,545	383,231
Less: Security Collateral Received	(60,567)	0
Net derivative assets	79,978	383,231
Contracts not subject to master netting arrangements, gross amounts recognized	2,100	587
Derivative, cash collateral received, including amount offset by fair value assets, and excess cash amount	(384,900)	(47,000)
Liabilities
Derivative liabilities - Fair Value	887,264	390,171
Less: Master Netting Arrangements	(242,745)	(58,679)
Less: Cash collateral received/paid	0	(174,048)
Derivative liability, after netting	644,519	157,444
Less: Security Collateral Pledged	(38,438)	(106,598)
Net derivative liabilities	606,081	50,846
Contracts not subject to master netting arrangements, gross amounts recognized	566	666
Derivative, cash collateral posted against derivative liabilities, including amount offset the derivative fair value liabilities, and excess cash amount	$ 490	$ 176,500
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Fair Value	Fair Value
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other liabilities	Accrued expenses and other liabilities

Loans Receivable and Allowanc_3

Loans Receivable and Allowance for Credit Losses - Composition of Loans Held-for-Investment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	$ 48,202,430	$ 41,693,781
Allowance for loan losses	(595,645)	(541,579)	$ (619,983)	$ (358,287)
Loans held for investment, net	47,606,785	41,152,202
Net deferred loan fees and net unamortized premiums	(70,400)	(50,700)
C&I | CARES Act, Paycheck Protection Program
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	99,000	534,200
Commercial Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	34,780,453	30,327,746
Commercial Lending | C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	15,711,095	14,150,608
Allowance for loan losses	(371,700)	(338,252)	(398,040)	(238,376)
Commercial Lending | CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	13,857,870	12,155,047
Allowance for loan losses	(149,864)	(150,940)	(163,791)	(40,509)
Commercial Lending | Residential loan | Multifamily
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	4,573,068	3,675,605
Allowance for loan losses	(23,373)	(14,400)	(27,573)	(22,826)
Commercial Lending | Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	638,420	346,486
Allowance for loan losses	(9,109)	(15,468)	(10,239)	(19,404)
Commercial Lending | Total CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	19,069,358	16,177,138
Consumer Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	13,421,977	11,366,035
Consumer Lending | Residential loan | Single-family
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	11,223,027	9,093,702
Allowance for loan losses	(35,564)	(17,160)	(15,520)	(28,527)
Consumer Lending | HELOCs
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	2,122,655	2,144,821
Allowance for loan losses	(4,475)	(3,435)	(2,690)	(5,265)
Consumer Lending | Total residential mortgage
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	13,345,682	11,238,523
Consumer Lending | Other consumer
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Total	76,295	127,512
Allowance for loan losses	$ (1,560)	$ (1,924)	$ (2,130)	$ (3,380)

Loans Receivable and Allowanc_4

Loans Receivable and Allowance for Credit Losses - Composition of Loans Held-for-Investment Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Accrued interest receivable	$ 208.4	$ 107.4
Asset Pledged as Collateral
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans receivable pledged to secure borrowings and provide additional borrowing capacity from the FRB and FHLB	28,300	27,670
Commercial Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Collateral dependent loans	47.4	37
Consumer Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Collateral dependent loans	$ 13.4	$ 14

Loans Receivable and Allowanc_5

Loans Receivable and Allowance for Credit Losses - Credit Risk Ratings and/or Vintage Years for Loans Held-for-Investment by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	$ 12,464,897	$ 10,680,884
One Year before Current Fiscal Year	8,204,714	6,294,357
Two Years before Current Fiscal Year	4,810,435	5,104,045
Three Years before Current Fiscal Year	3,871,740	3,678,223
Four Years before Current Fiscal Year	2,936,646	2,400,331
Prior	4,261,980	3,686,038
Revolving Loans	11,460,495	9,612,862
Revolving Loans Converted to Term Loans	191,523	237,041
Total	48,202,430	41,693,781
Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	12,365,799	10,487,630
One Year before Current Fiscal Year	8,084,723	6,171,008
Two Years before Current Fiscal Year	4,590,045	5,019,097
Three Years before Current Fiscal Year	3,791,578	3,553,784
Four Years before Current Fiscal Year	2,786,218	2,329,521
Prior	4,158,181	3,569,404
Revolving Loans	11,359,948	9,497,636
Revolving Loans Converted to Term Loans	169,958	232,645
Total	47,306,450	40,860,725
Pass [Member] | Federal Housing Administration Loan
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans guaranteed by the FHA	818	1,600
Criticized (accrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	80,235	159,448
One Year before Current Fiscal Year	96,150	120,557
Two Years before Current Fiscal Year	208,970	82,632
Three Years before Current Fiscal Year	76,486	119,845
Four Years before Current Fiscal Year	142,072	48,919
Prior	76,117	94,146
Revolving Loans	99,447	115,174
Revolving Loans Converted to Term Loans	17,795	708
Total	797,272	741,429
Criticized (nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	18,863	33,806
One Year before Current Fiscal Year	23,841	2,792
Two Years before Current Fiscal Year	11,420	2,316
Three Years before Current Fiscal Year	3,676	4,594
Four Years before Current Fiscal Year	8,356	21,891
Prior	27,682	22,488
Revolving Loans	1,100	52
Revolving Loans Converted to Term Loans	3,770	3,688
Total	98,708	91,627
HELOCs
Financing Receivable, Credit Quality Indicator [Line Items]
Amount converted to loans	0	54,100	$ 145,000
Commercial Lending
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	8,898,251	8,046,445
One Year before Current Fiscal Year	5,745,996	4,177,452
Two Years before Current Fiscal Year	3,020,575	3,721,211
Three Years before Current Fiscal Year	2,761,676	2,590,956
Four Years before Current Fiscal Year	2,111,867	1,622,234
Prior	2,719,920	2,486,373
Revolving Loans	9,462,895	7,647,844
Revolving Loans Converted to Term Loans	59,273	35,231
Total	34,780,453	30,327,746
Amount converted to loans	26,200	6,500	$ 23,900
Commercial Lending | C&I
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	2,922,766	4,026,214
One Year before Current Fiscal Year	2,092,308	1,253,234
Two Years before Current Fiscal Year	682,520	701,797
Three Years before Current Fiscal Year	426,477	239,265
Four Years before Current Fiscal Year	170,234	156,829
Prior	120,853	245,775
Revolving Loans	9,275,389	7,498,652
Revolving Loans Converted to Term Loans	20,548	28,842
Total	15,711,095	14,150,608
Commercial Lending | C&I | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	2,831,834	3,911,722
One Year before Current Fiscal Year	2,053,215	1,133,085
Two Years before Current Fiscal Year	623,026	629,007
Three Years before Current Fiscal Year	392,013	187,195
Four Years before Current Fiscal Year	143,970	132,392
Prior	97,605	225,326
Revolving Loans	9,177,401	7,383,485
Revolving Loans Converted to Term Loans	20,548	28,842
Total	15,339,612	13,631,054
Commercial Lending | C&I | Criticized (accrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	72,210	85,036
One Year before Current Fiscal Year	34,296	117,357
Two Years before Current Fiscal Year	48,761	72,277
Three Years before Current Fiscal Year	34,221	51,553
Four Years before Current Fiscal Year	20,646	15,136
Prior	12,933	4,005
Revolving Loans	97,988	115,167
Revolving Loans Converted to Term Loans	0	0
Total	321,055	460,531
Commercial Lending | C&I | Criticized (nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	18,722	29,456
One Year before Current Fiscal Year	4,797	2,792
Two Years before Current Fiscal Year	10,733	513
Three Years before Current Fiscal Year	243	517
Four Years before Current Fiscal Year	5,618	9,301
Prior	10,315	16,444
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	50,428	59,023
Commercial Lending | CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	4,182,298	2,867,598
One Year before Current Fiscal Year	2,484,251	2,093,703
Two Years before Current Fiscal Year	1,664,574	2,239,696
Three Years before Current Fiscal Year	1,811,774	1,884,558
Four Years before Current Fiscal Year	1,562,842	1,150,285
Prior	1,946,298	1,784,150
Revolving Loans	167,108	128,668
Revolving Loans Converted to Term Loans	38,725	6,389
Total	13,857,870	12,155,047
Commercial Lending | CRE | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	4,178,780	2,792,193
One Year before Current Fiscal Year	2,404,634	2,090,503
Two Years before Current Fiscal Year	1,505,150	2,230,520
Three Years before Current Fiscal Year	1,771,679	1,863,481
Four Years before Current Fiscal Year	1,471,710	1,120,682
Prior	1,909,925	1,727,862
Revolving Loans	165,653	128,668
Revolving Loans Converted to Term Loans	22,009	6,389
Total	13,429,540	11,960,298
Commercial Lending | CRE | Criticized (accrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	3,518	71,055
One Year before Current Fiscal Year	60,573	3,200
Two Years before Current Fiscal Year	159,424	9,176
Three Years before Current Fiscal Year	40,095	21,077
Four Years before Current Fiscal Year	91,132	24,851
Prior	32,173	55,892
Revolving Loans	1,455	0
Revolving Loans Converted to Term Loans	16,716	0
Total	405,086	185,251
Commercial Lending | CRE | Criticized (nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	4,350
One Year before Current Fiscal Year	19,044	0
Two Years before Current Fiscal Year	0	0
Three Years before Current Fiscal Year	0	0
Four Years before Current Fiscal Year	0	4,752
Prior	4,200	396
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	23,244	9,498
Commercial Lending | Real estate loan | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	1,500,289	1,026,295
One Year before Current Fiscal Year	892,598	726,772
Two Years before Current Fiscal Year	641,677	689,174
Three Years before Current Fiscal Year	520,321	441,663
Four Years before Current Fiscal Year	354,320	315,120
Prior	652,538	456,057
Revolving Loans	11,325	20,524
Revolving Loans Converted to Term Loans	0	0
Total	4,573,068	3,675,605
Commercial Lending | Real estate loan | Multifamily | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	1,500,289	1,026,295
One Year before Current Fiscal Year	892,598	726,772
Two Years before Current Fiscal Year	641,677	688,453
Three Years before Current Fiscal Year	519,614	419,319
Four Years before Current Fiscal Year	350,044	308,087
Prior	625,293	424,947
Revolving Loans	11,325	20,524
Revolving Loans Converted to Term Loans	0	0
Total	4,540,840	3,614,397
Commercial Lending | Real estate loan | Multifamily | Criticized (accrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
One Year before Current Fiscal Year	0	0
Two Years before Current Fiscal Year	0	721
Three Years before Current Fiscal Year	707	22,344
Four Years before Current Fiscal Year	4,276	7,033
Prior	27,076	30,666
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	32,059	60,764
Commercial Lending | Real estate loan | Multifamily | Criticized (nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
One Year before Current Fiscal Year	0	0
Two Years before Current Fiscal Year	0	0
Three Years before Current Fiscal Year	0	0
Four Years before Current Fiscal Year	0	0
Prior	169	444
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	169	444
Commercial Lending | Construction and land
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	292,898	126,338
One Year before Current Fiscal Year	276,839	103,743
Two Years before Current Fiscal Year	31,804	90,544
Three Years before Current Fiscal Year	3,104	25,470
Four Years before Current Fiscal Year	24,471	0
Prior	231	391
Revolving Loans	9,073	0
Revolving Loans Converted to Term Loans	0	0
Total	638,420	346,486
Commercial Lending | Construction and land | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	288,394	122,983
One Year before Current Fiscal Year	276,839	103,743
Two Years before Current Fiscal Year	31,804	90,544
Three Years before Current Fiscal Year	3,104	3,412
Four Years before Current Fiscal Year	2,805	0
Prior	231	391
Revolving Loans	9,073	0
Revolving Loans Converted to Term Loans	0	0
Total	612,250	321,073
Commercial Lending | Construction and land | Criticized (accrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	4,504	3,355
One Year before Current Fiscal Year	0	0
Two Years before Current Fiscal Year	0	0
Three Years before Current Fiscal Year	0	22,058
Four Years before Current Fiscal Year	21,666	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	26,170	25,413
Commercial Lending | Construction and land | Criticized (nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
One Year before Current Fiscal Year	0	0
Two Years before Current Fiscal Year	0	0
Three Years before Current Fiscal Year	0	0
Four Years before Current Fiscal Year	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	0	0
Commercial Lending | Total CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	5,975,485	4,020,231
One Year before Current Fiscal Year	3,653,688	2,924,218
Two Years before Current Fiscal Year	2,338,055	3,019,414
Three Years before Current Fiscal Year	2,335,199	2,351,691
Four Years before Current Fiscal Year	1,941,633	1,465,405
Prior	2,599,067	2,240,598
Revolving Loans	187,506	149,192
Revolving Loans Converted to Term Loans	38,725	6,389
Total	19,069,358	16,177,138
Consumer Lending
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	3,566,646	2,634,439
One Year before Current Fiscal Year	2,458,718	2,116,905
Two Years before Current Fiscal Year	1,789,860	1,382,834
Three Years before Current Fiscal Year	1,110,064	1,087,267
Four Years before Current Fiscal Year	824,779	778,097
Prior	1,542,060	1,199,665
Revolving Loans	1,997,600	1,965,018
Revolving Loans Converted to Term Loans	132,250	201,810
Total	13,421,977	11,366,035
Consumer Lending | Real estate loan | Single-family
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	3,549,035	2,616,958
One Year before Current Fiscal Year	2,454,992	2,108,370
Two Years before Current Fiscal Year	1,776,685	1,378,138
Three Years before Current Fiscal Year	1,106,630	1,085,732
Four Years before Current Fiscal Year	823,237	769,545
Prior	1,512,448	1,134,959
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	11,223,027	9,093,702
Consumer Lending | Real estate loan | Single-family | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	3,548,894	2,616,958
One Year before Current Fiscal Year	2,453,717	2,108,370
Two Years before Current Fiscal Year	1,775,696	1,375,929
Three Years before Current Fiscal Year	1,101,965	1,079,030
Four Years before Current Fiscal Year	817,164	763,351
Prior	1,500,359	1,127,516
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	11,197,795	9,071,154
Consumer Lending | Real estate loan | Single-family | Criticized (accrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
One Year before Current Fiscal Year	1,275	0
Two Years before Current Fiscal Year	785	458
Three Years before Current Fiscal Year	1,463	2,813
Four Years before Current Fiscal Year	4,352	1,899
Prior	3,935	3,212
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	11,810	8,382
Consumer Lending | Real estate loan | Single-family | Criticized (nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	141	0
One Year before Current Fiscal Year	0	0
Two Years before Current Fiscal Year	204	1,751
Three Years before Current Fiscal Year	3,202	3,889
Four Years before Current Fiscal Year	1,721	4,295
Prior	8,154	4,231
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	13,422	14,166
Consumer Lending | HELOCs
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	520	648
One Year before Current Fiscal Year	3,589	3,277
Two Years before Current Fiscal Year	7,819	4,696
Three Years before Current Fiscal Year	3,434	1,535
Four Years before Current Fiscal Year	1,542	6,811
Prior	13,804	12,559
Revolving Loans	1,959,697	1,913,485
Revolving Loans Converted to Term Loans	132,250	201,810
Total	2,122,655	2,144,821
Consumer Lending | HELOCs | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	520	648
One Year before Current Fiscal Year	3,583	3,277
Two Years before Current Fiscal Year	7,336	4,644
Three Years before Current Fiscal Year	3,203	1,347
Four Years before Current Fiscal Year	525	3,268
Prior	8,960	11,215
Revolving Loans	1,958,692	1,913,478
Revolving Loans Converted to Term Loans	127,401	197,414
Total	2,110,220	2,135,291
Consumer Lending | HELOCs | Criticized (accrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
One Year before Current Fiscal Year	6	0
Two Years before Current Fiscal Year	0	0
Three Years before Current Fiscal Year	0	0
Four Years before Current Fiscal Year	0	0
Prior	0	371
Revolving Loans	4	7
Revolving Loans Converted to Term Loans	1,079	708
Total	1,089	1,086
Consumer Lending | HELOCs | Criticized (nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
One Year before Current Fiscal Year	0	0
Two Years before Current Fiscal Year	483	52
Three Years before Current Fiscal Year	231	188
Four Years before Current Fiscal Year	1,017	3,543
Prior	4,844	973
Revolving Loans	1,001	0
Revolving Loans Converted to Term Loans	3,770	3,688
Total	11,346	8,444
Consumer Lending | Total residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	3,549,555	2,617,606
One Year before Current Fiscal Year	2,458,581	2,111,647
Two Years before Current Fiscal Year	1,784,504	1,382,834
Three Years before Current Fiscal Year	1,110,064	1,087,267
Four Years before Current Fiscal Year	824,779	776,356
Prior	1,526,252	1,147,518
Revolving Loans	1,959,697	1,913,485
Revolving Loans Converted to Term Loans	132,250	201,810
Total	13,345,682	11,238,523
Consumer Lending | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	17,091	16,833
One Year before Current Fiscal Year	137	5,258
Two Years before Current Fiscal Year	5,356	0
Three Years before Current Fiscal Year	0	0
Four Years before Current Fiscal Year	0	1,741
Prior	15,808	52,147
Revolving Loans	37,903	51,533
Revolving Loans Converted to Term Loans	0	0
Total	76,295	127,512
Consumer Lending | Other consumer | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	17,088	16,831
One Year before Current Fiscal Year	137	5,258
Two Years before Current Fiscal Year	5,356	0
Three Years before Current Fiscal Year	0	0
Four Years before Current Fiscal Year	0	1,741
Prior	15,808	52,147
Revolving Loans	37,804	51,481
Revolving Loans Converted to Term Loans	0	0
Total	76,193	127,458
Consumer Lending | Other consumer | Criticized (accrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	3	2
One Year before Current Fiscal Year	0	0
Two Years before Current Fiscal Year	0	0
Three Years before Current Fiscal Year	0	0
Four Years before Current Fiscal Year	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total	3	2
Consumer Lending | Other consumer | Criticized (nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
One Year before Current Fiscal Year	0	0
Two Years before Current Fiscal Year	0	0
Three Years before Current Fiscal Year	0	0
Four Years before Current Fiscal Year	0	0
Prior	0	0
Revolving Loans	99	52
Revolving Loans Converted to Term Loans	0	0
Total	$ 99	$ 52

Loans Receivable and Allowanc_6

Loans Receivable and Allowance for Credit Losses - Aging Analysis on Loans Held-for-Investment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	$ 99,526	$ 93,181
Loans held-for-investment	48,202,430	41,693,781
Commercial Lending
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	73,841	68,965
Loans held-for-investment	34,780,453	30,327,746
Commercial Lending | C&I
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	50,428	59,023
Loans held-for-investment	15,711,095	14,150,608
Commercial Lending | CRE
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	23,244	9,498
Loans held-for-investment	13,857,870	12,155,047
Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	169	444
Loans held-for-investment	4,573,068	3,675,605
Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	0	0
Loans held-for-investment	638,420	346,486
Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	23,413	9,942
Loans held-for-investment	19,069,358	16,177,138
Consumer Lending
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	25,685	24,216
Loans held-for-investment	13,421,977	11,366,035
Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	14,240	15,720
Loans held-for-investment	11,223,027	9,093,702
Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	11,346	8,444
Loans held-for-investment	2,122,655	2,144,821
Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	25,586	24,164
Loans held-for-investment	13,345,682	11,238,523
Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	99	52
Loans held-for-investment	76,295	127,512
Current Accruing Loans
Nonaccrual and Past Due Loans
Loans held-for-investment	48,040,733	41,555,745
Current Accruing Loans | Commercial Lending
Nonaccrual and Past Due Loans
Loans held-for-investment	34,682,072	30,238,648
Current Accruing Loans | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Loans held-for-investment	15,651,312	14,080,516
Current Accruing Loans | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Loans held-for-investment	13,820,441	12,141,827
Current Accruing Loans | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Loans held-for-investment	4,571,899	3,669,819
Current Accruing Loans | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Loans held-for-investment	638,420	346,486
Current Accruing Loans | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Loans held-for-investment	19,030,760	16,158,132
Current Accruing Loans | Consumer Lending
Nonaccrual and Past Due Loans
Loans held-for-investment	13,358,661	11,317,097
Current Accruing Loans | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Loans held-for-investment	11,183,134	9,059,222
Current Accruing Loans | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Loans held-for-investment	2,102,523	2,130,523
Current Accruing Loans | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Loans held-for-investment	13,285,657	11,189,745
Current Accruing Loans | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Loans held-for-investment	73,004	127,352
Accruing Loans 30-59  Days Past Due
Nonaccrual and Past Due Loans
Loans held-for-investment	42,677	31,091
Accruing Loans 30-59  Days Past Due | Commercial Lending
Nonaccrual and Past Due Loans
Loans held-for-investment	21,345	16,025
Accruing Loans 30-59  Days Past Due | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Loans held-for-investment	6,482	6,983
Accruing Loans 30-59  Days Past Due | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Loans held-for-investment	14,185	3,722
Accruing Loans 30-59  Days Past Due | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Loans held-for-investment	678	5,320
Accruing Loans 30-59  Days Past Due | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Loans held-for-investment	0	0
Accruing Loans 30-59  Days Past Due | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Loans held-for-investment	14,863	9,042
Accruing Loans 30-59  Days Past Due | Consumer Lending
Nonaccrual and Past Due Loans
Loans held-for-investment	21,332	15,066
Accruing Loans 30-59  Days Past Due | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Loans held-for-investment	13,523	10,191
Accruing Loans 30-59  Days Past Due | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Loans held-for-investment	7,700	4,776
Accruing Loans 30-59  Days Past Due | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Loans held-for-investment	21,223	14,967
Accruing Loans 30-59  Days Past Due | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Loans held-for-investment	109	99
Accruing Loans 60-89  Days Past Due
Nonaccrual and Past Due Loans
Loans held-for-investment	19,494	13,764
Accruing Loans 60-89  Days Past Due | Commercial Lending
Nonaccrual and Past Due Loans
Loans held-for-investment	3,195	4,108
Accruing Loans 60-89  Days Past Due | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Loans held-for-investment	2,873	4,086
Accruing Loans 60-89  Days Past Due | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Loans held-for-investment	0	0
Accruing Loans 60-89  Days Past Due | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Loans held-for-investment	322	22
Accruing Loans 60-89  Days Past Due | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Loans held-for-investment	0	0
Accruing Loans 60-89  Days Past Due | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Loans held-for-investment	322	22
Accruing Loans 60-89  Days Past Due | Consumer Lending
Nonaccrual and Past Due Loans
Loans held-for-investment	16,299	9,656
Accruing Loans 60-89  Days Past Due | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Loans held-for-investment	12,130	8,569
Accruing Loans 60-89  Days Past Due | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Loans held-for-investment	1,086	1,078
Accruing Loans 60-89  Days Past Due | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Loans held-for-investment	13,216	9,647
Accruing Loans 60-89  Days Past Due | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Loans held-for-investment	3,083	9
Total Accruing Past Due Loans
Nonaccrual and Past Due Loans
Loans held-for-investment	62,171	44,855
Total Accruing Past Due Loans | Commercial Lending
Nonaccrual and Past Due Loans
Loans held-for-investment	24,540	20,133
Total Accruing Past Due Loans | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Loans held-for-investment	9,355	11,069
Total Accruing Past Due Loans | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Loans held-for-investment	14,185	3,722
Total Accruing Past Due Loans | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Loans held-for-investment	1,000	5,342
Total Accruing Past Due Loans | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Loans held-for-investment	0	0
Total Accruing Past Due Loans | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Loans held-for-investment	15,185	9,064
Total Accruing Past Due Loans | Consumer Lending
Nonaccrual and Past Due Loans
Loans held-for-investment	37,631	24,722
Total Accruing Past Due Loans | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Loans held-for-investment	25,653	18,760
Total Accruing Past Due Loans | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Loans held-for-investment	8,786	5,854
Total Accruing Past Due Loans | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Loans held-for-investment	34,439	24,614
Total Accruing Past Due Loans | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Loans held-for-investment	$ 3,192	$ 108

Loans Receivable and Allowanc_7

Loans Receivable and Allowance for Credit Losses - Amortized Cost of Loans on Nonaccrual Status (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related allowance for loan losses	$ 44,585	$ 42,887
Commercial Lending
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related allowance for loan losses	34,342	32,069
Commercial Lending | C&I
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related allowance for loan losses	11,398	22,967
Commercial Lending | CRE
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related allowance for loan losses	22,944	9,102
Consumer Lending
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related allowance for loan losses	10,243	10,818
Consumer Lending | Real estate loan | Single-family
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related allowance for loan losses	2,998	5,785
Consumer Lending | HELOCs
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related allowance for loan losses	$ 7,245	$ 5,033

Loans Receivable and Allowanc_8

Loans Receivable and Allowance for Credit Losses - Foreclosed Assets Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Foreclosed assets	$ 270	$ 10,300
Residential real estate properties
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Recorded investment in consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	$ 7,500	$ 7,300

Loans Receivable and Allowanc_9

Loans Receivable and Allowance for Credit Losses - Additions to TDRs (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	9	6	17
Pre-Modification Outstanding Recorded Investment	$ 69,712	$ 25,256	$ 174,898
Post-modification outstanding recorded investment	39,112	21,329	156,914
Financial Impact	$ 12,640	$ 1,108	$ 19,573
Commercial Portfolio Segment [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	7	6	17
Pre-Modification Outstanding Recorded Investment	$ 69,050	$ 25,256	$ 174,898
Post-modification outstanding recorded investment	38,415	21,329	156,914
Financial Impact	$ 12,638	$ 1,108	$ 19,573
Commercial Portfolio Segment [Member] | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	7	5	14
Pre-Modification Outstanding Recorded Investment	$ 69,050	$ 24,155	$ 152,249
Post-modification outstanding recorded investment	38,415	20,263	134,467
Financial Impact	$ 12,638	$ 1,108	$ 19,555
Commercial Portfolio Segment [Member] | Real estate loan | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan		1	1
Pre-Modification Outstanding Recorded Investment		$ 1,101	$ 1,220
Post-modification outstanding recorded investment		1,066	1,226
Financial Impact		$ 0	$ 0
Commercial Portfolio Segment [Member] | Total CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan		1	3
Pre-Modification Outstanding Recorded Investment		$ 1,101	$ 22,649
Post-modification outstanding recorded investment		1,066	22,447
Financial Impact		$ 0	$ 18
Commercial Portfolio Segment [Member] | CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan			2
Pre-Modification Outstanding Recorded Investment			$ 21,429
Post-modification outstanding recorded investment			21,221
Financial Impact			$ 18
Consumer Lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2
Pre-Modification Outstanding Recorded Investment	$ 662
Post-modification outstanding recorded investment	697
Financial Impact	$ 2
Consumer Lending | HELOCs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2
Pre-Modification Outstanding Recorded Investment	$ 662
Post-modification outstanding recorded investment	697
Financial Impact	$ 2
Consumer Lending | Total residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2
Pre-Modification Outstanding Recorded Investment	$ 662
Post-modification outstanding recorded investment	697
Financial Impact	$ 2

Loans Receivable and Allowan_10

Loans Receivable and Allowance for Credit Losses - TDR Post-Modifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	$ 39,112	$ 21,329	$ 156,914
Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	24,935	5,745	81,581
Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	0	10,863
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	15,584	31,913
Interest Deferments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	0	32,557
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	14,177	0	0
Commercial Portfolio Segment [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	38,415	21,329	156,914
Commercial Portfolio Segment [Member] | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	24,238	5,745	81,581
Commercial Portfolio Segment [Member] | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	0	10,863
Commercial Portfolio Segment [Member] | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	15,584	31,913
Commercial Portfolio Segment [Member] | Interest Deferments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	0	32,557
Commercial Portfolio Segment [Member] | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	14,177	0	0
Commercial Portfolio Segment [Member] | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	38,415	20,263	134,467
Commercial Portfolio Segment [Member] | C&I | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	24,238	4,679	59,134
Commercial Portfolio Segment [Member] | C&I | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	0	10,863
Commercial Portfolio Segment [Member] | C&I | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	15,584	31,913
Commercial Portfolio Segment [Member] | C&I | Interest Deferments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0	0	32,557
Commercial Portfolio Segment [Member] | C&I | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	14,177	0	0
Commercial Portfolio Segment [Member] | Real estate loan | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		1,066	1,226
Commercial Portfolio Segment [Member] | Real estate loan | Principal | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		1,066	1,226
Commercial Portfolio Segment [Member] | Real estate loan | Principal and Interest | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		0	0
Commercial Portfolio Segment [Member] | Real estate loan | Interest Rate Reduction | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		0	0
Commercial Portfolio Segment [Member] | Real estate loan | Interest Deferments | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		0	0
Commercial Portfolio Segment [Member] | Real estate loan | Other | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		0
Commercial Portfolio Segment [Member] | Real estate loan | Other Modifications | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment			0
Commercial Portfolio Segment [Member] | Total CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		1,066	22,447
Commercial Portfolio Segment [Member] | Total CRE | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		1,066	22,447
Commercial Portfolio Segment [Member] | Total CRE | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		0	0
Commercial Portfolio Segment [Member] | Total CRE | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		0	0
Commercial Portfolio Segment [Member] | Total CRE | Interest Deferments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		0	0
Commercial Portfolio Segment [Member] | Total CRE | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment		$ 0	0
Commercial Portfolio Segment [Member] | CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment			21,221
Commercial Portfolio Segment [Member] | CRE | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment			21,221
Commercial Portfolio Segment [Member] | CRE | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment			0
Commercial Portfolio Segment [Member] | CRE | Interest Deferments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment			0
Commercial Portfolio Segment [Member] | CRE | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment			0
Commercial Portfolio Segment [Member] | CRE | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment			$ 0
Consumer Lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	697
Consumer Lending | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	697
Consumer Lending | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | Interest Deferments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | HELOCs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	697
Consumer Lending | HELOCs | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	697
Consumer Lending | HELOCs | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | HELOCs | Interest Deferments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | HELOCs | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | HELOCs | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | Total residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	697
Consumer Lending | Total residential mortgage | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	697
Consumer Lending | Total residential mortgage | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | Total residential mortgage | Interest Deferments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | Total residential mortgage | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	0
Consumer Lending | Total residential mortgage | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification outstanding recorded investment	$ 0

Loans Receivable and Allowan_11

Loans Receivable and Allowance for Credit Losses - Loans Modified as TDRs that Subsequently Defaulted (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2	1	1
Recorded Investment	$ 10,296	$ 11,431	$ 15,852
Commitment to lend	$ 16,200	$ 5,000
Commercial Portfolio Segment [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2	1	1
Recorded Investment	$ 10,296	$ 11,431	$ 15,852
Commercial Portfolio Segment [Member] | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2	1	1
Recorded Investment	$ 10,296	$ 11,431	$ 15,852

Loans Receivable and Allowan_12

Loans Receivable and Allowance for Credit Losses - Summary of Activities in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period	$ 541,579	$ 619,983	$ 358,287
Provision for (reversal of) credit losses	74,767	(28,954)	198,691
Gross charge-offs	(37,920)	(66,592)	(81,837)
Gross recoveries	19,461	16,614	18,672
Total net (charge-offs) recoveries	(18,459)	(49,978)	(63,165)
Foreign currency translation adjustment	(2,242)	528	1,012
Allowance for loan losses, balance at the end of the period	595,645	541,579	619,983	$ 358,287
Accounting Standards Update [Extensible List]				Accounting Standards Update 2016-13
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period			125,158
Allowance for loan losses, balance at the end of the period				$ 125,158
Commercial Lending | C&I
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period	338,252	398,040	238,376
Provision for (reversal of) credit losses	37,604	(39,732)	145,212
Gross charge-offs	(18,738)	(32,490)	(66,225)
Gross recoveries	16,824	11,906	5,428
Total net (charge-offs) recoveries	(1,914)	(20,584)	(60,797)
Foreign currency translation adjustment	(2,242)	528	1,012
Allowance for loan losses, balance at the end of the period	371,700	338,252	398,040	238,376
Commercial Lending | C&I | Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period			74,237
Allowance for loan losses, balance at the end of the period				74,237
Commercial Lending | CRE
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period	150,940	163,791	40,509
Provision for (reversal of) credit losses	8,212	14,282	55,864
Gross charge-offs	(10,871)	(28,430)	(15,206)
Gross recoveries	1,583	1,297	10,455
Total net (charge-offs) recoveries	(9,288)	(27,133)	(4,751)
Foreign currency translation adjustment	0	0	0
Allowance for loan losses, balance at the end of the period	149,864	150,940	163,791	40,509
Commercial Lending | CRE | Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period			72,169
Allowance for loan losses, balance at the end of the period				72,169
Commercial Lending | Residential loan | Multifamily
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period	14,400	27,573	22,826
Provision for (reversal of) credit losses	15,651	(15,076)	10,879
Gross charge-offs	(7,237)	(130)	0
Gross recoveries	559	2,033	1,980
Total net (charge-offs) recoveries	(6,678)	1,903	1,980
Foreign currency translation adjustment	0	0	0
Allowance for loan losses, balance at the end of the period	23,373	14,400	27,573	22,826
Commercial Lending | Residential loan | Multifamily | Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period			(8,112)
Allowance for loan losses, balance at the end of the period				(8,112)
Commercial Lending | Construction and land
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period	15,468	10,239	19,404
Provision for (reversal of) credit losses	(6,433)	7,576	644
Gross charge-offs	0	(2,954)	0
Gross recoveries	74	607	80
Total net (charge-offs) recoveries	74	(2,347)	80
Foreign currency translation adjustment	0	0	0
Allowance for loan losses, balance at the end of the period	9,109	15,468	10,239	19,404
Commercial Lending | Construction and land | Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period			(9,889)
Allowance for loan losses, balance at the end of the period				(9,889)
Consumer Lending | Residential loan | Single-family
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period	17,160	15,520	28,527
Provision for (reversal of) credit losses	18,867	1,965	(9,922)
Gross charge-offs	(775)	(1,046)	0
Gross recoveries	312	721	585
Total net (charge-offs) recoveries	(463)	(325)	585
Foreign currency translation adjustment	0	0	0
Allowance for loan losses, balance at the end of the period	35,564	17,160	15,520	28,527
Consumer Lending | Residential loan | Single-family | Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period			(3,670)
Allowance for loan losses, balance at the end of the period				(3,670)
Consumer Lending | HELOCs
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period	3,435	2,690	5,265
Provision for (reversal of) credit losses	1,124	745	(605)
Gross charge-offs	(193)	(45)	(221)
Gross recoveries	109	45	49
Total net (charge-offs) recoveries	(84)	0	(172)
Foreign currency translation adjustment	0	0	0
Allowance for loan losses, balance at the end of the period	4,475	3,435	2,690	5,265
Consumer Lending | HELOCs | Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period			(1,798)
Allowance for loan losses, balance at the end of the period				(1,798)
Consumer Lending | Other consumer
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period	1,924	2,130	3,380
Provision for (reversal of) credit losses	(258)	1,286	(3,381)
Gross charge-offs	(106)	(1,497)	(185)
Gross recoveries	0	5	95
Total net (charge-offs) recoveries	(106)	(1,492)	(90)
Foreign currency translation adjustment	0	0	0
Allowance for loan losses, balance at the end of the period	$ 1,560	$ 1,924	2,130	3,380
Consumer Lending | Other consumer | Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Allowance for loan losses
Allowance for loan losses, balance at the beginning of the period			$ 2,221
Allowance for loan losses, balance at the end of the period				$ 2,221

Loans Receivable and Allowan_13

Loans Receivable and Allowance for Credit Losses - Summary of Activities in Allowance for loan losses by Portfolio Segments and Unfunded Credit Commitments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses
Accounting Standards Update [Extensible List]				Accounting Standards Update 2016-13
Provision for (reversal of) credit losses	$ 74,767	$ (28,954)	$ 198,691
Allowance for unfunded credit reserves
Allowance for unfunded credit commitments, beginning of period	27,500
(Reversal of) provision for credit losses	73,500	(35,000)	210,653
Allowance for unfunded credit commitments, end of period	26,200	27,500
Unfunded Loan Commitment
Allowance for unfunded credit reserves
Allowance for unfunded credit commitments, beginning of period	27,514	33,577	11,158
(Reversal of) provision for credit losses	(1,267)	(6,046)	11,962
Foreign currency translation adjustments	17	(17)	0
Allowance for unfunded credit commitments, end of period	26,264	27,514	33,577	$ 11,158
Cumulative Effect, Period of Adoption, Adjustment
Allowance for unfunded credit reserves
Allowance for unfunded credit commitments, beginning of period	$ 0	0	10,457
Allowance for unfunded credit commitments, end of period		$ 0	$ 0	$ 10,457

Loans Receivable and Allowan_14

Loans Receivable and Allowance for Credit Losses - Allowance for Credit Losses Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022 USD ($) qtr	Dec. 31, 2021 USD ($)
Financing Receivable, Allowance for Credit Losses
Life time loss rate, period span | qtr		11
Financing receivable and off balance sheet credit loss allowance		$ 621.9	$ 569.1
Decrease in allowance for credit losses		$ 52.8
Annual GDP growth rate (in percent)		1.90%
Average increase in the unemployment rate (in percent)		3.70%
Credit Derivative, Term		10 years
Forecast
Financing Receivable, Allowance for Credit Losses
Annual GDP growth rate (in percent)	0.90%
Average increase in the unemployment rate (in percent)	4%
Average decline of annual GDP rate (in percent)	1.30%
Average rising of unemployment rate (in percent)	6.80%
Higher GDP growth rate (in percent)	2.60%
Improving of unemployment rate and no recession (in percent)	3.50%

Loans Receivable and Allowan_15

Loans Receivable and Allowance for Credit Losses - Loans Held-for-Sale Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
C&I
LOANS HELD-FOR-SALE
Loans held-for-sale	$ 25,600
Single Family Residential
LOANS HELD-FOR-SALE
Loans held-for-sale		$ 635

Loans Receivable and Allowan_16

Loans Receivable and Allowance for Credit Losses - Loans Purchases, Sales and Transfers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	$ 623,777	$ 599,610	$ 329,069
Loans transferred from held-for-sale to held-for-investment	631
Sales	595,767	621,543	412,221
Purchases	657,270	1,044,711	389,580
Writeoff	3,100	12,200	2,800
Net gains on sales of loans	6,411	8,909	4,501
Loans Sold in Secondary Market | Loans receivable, purchased
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Sales	208,200	208,400	11,800
Commercial And Industrial Loan And Commercial Real Estate Loan | Loans receivable, originated
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Sales	387,500	413,100	400,400
Commercial Lending | C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	530,524	496,655	300,677
Loans transferred from held-for-sale to held-for-investment	0
Sales	501,289	502,694	303,520
Purchases	363,549	479,690	154,154
Commercial Lending | CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	88,075	78,834	26,994
Loans transferred from held-for-sale to held-for-investment	0
Sales	88,075	78,834	26,994
Purchases	0	0	0
Commercial Lending | Residential loan | Multifamily
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	0	0	1,398
Loans transferred from held-for-sale to held-for-investment	0
Sales	0	0	1,398
Purchases	0	370	2,358
Commercial Lending | Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	0	18,883	0
Loans transferred from held-for-sale to held-for-investment	0
Sales	0	21,557	0
Purchases	0	0	0
Consumer Lending | Residential loan | Single-family
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	5,178	5,238	0
Loans transferred from held-for-sale to held-for-investment	631
Sales	6,403	18,458	80,309
Purchases	$ 293,721	$ 564,651	$ 233,068

Investments in Qualified Affo_3

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Investments in Tax Credit and Other Investments, Net [Line Items]
Minimum compliance period to fully utilize tax credits	15 years
Investments in tax credit and other investments, net
Investments in Tax Credit and Other Investments, Net [Line Items]
Equity securities with readily determinable fair value	$ 24	$ 26.6
Investments In Tax Credit And Other Investments, Net And Other Assets
Investments in Tax Credit and Other Investments, Net [Line Items]
Equity securities without readily determinable fair value, amount	$ 36.5	$ 33.1

Investments in Qualified Affo_4

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities - Investments in Qualified Affordable Housing Partnerships, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets
Investments in qualified affordable housing partnerships, net	$ 413,253	$ 289,741
Investments in Tax Credit and Other Investments, Net	350,003	338,522
Total	763,256	628,263
Liabilities - Unfunded Commitments
Investments in qualified affordable housing partnerships, net	266,654	146,152
Investments in tax credit and other investments, net	185,797	163,464
Total	$ 452,451	$ 309,616

Investments in Qualified Affo_5

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities - Investments in Tax Credit and Other Investments, Net (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) investment	Dec. 31, 2021 USD ($) investment	Dec. 31, 2020 USD ($) investment
Investments in qualified housing partnerships, net
Tax credits and other tax benefits recognized	$ 52,132	$ 50,643	$ 45,971
Amortization expense included in income tax expense	38,759	33,248	37,132
Investments in tax credit and other investments, net
(Impairment recoveries) amortization of tax credit and other investments	113,358	122,457	70,082
Unrealized (losses) gains on equity securities with readily determinable values	(2,928)	(746)	732
Impairment recoveries (losses)	$ 469	$ 1,250	$ (3,699)
Investment in Tax Credit and Other Investments
Investments in tax credit and other investments, net
Number of historic tax credits recoveries/losses | investment	1	1	3
Number of energy tax credits recoveries | investment	3	2	1
Number of Impairment Losses of Historic Tax Credit Investments | investment	2
Historic Tax Credit Investment
Investments in tax credit and other investments, net
Number of historic tax credits recoveries/losses | investment			3
Pre-tax impairment charge or recovery	$ 2,900		$ 4,800
Energy Tax Credit Investment
Investments in tax credit and other investments, net
Pre-tax impairment charge or recovery	$ 3,400		1,500
Non-Marketable Equity Security
Investments in tax credit and other investments, net
Pre-tax impairment charge or recovery			$ 360
Number of impaired or recovered non-marketable equity securities | investment			1

Investments in Qualified Affo_6

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities - Estimated Unfunded Commitments (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments
2023	$ 312,795
2024	64,576
2025	64,617
2026	3,936
2027	1,413
Thereafter	5,114
Total	$ 452,451

Investments in Qualified Affo_7

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities - Variable Interest Entities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Collateralized loan obligations (“CLOs”) | Debt securities available for sale
Investments in Tax Credit and Other Investments, Net [Line Items]
Fair Value	$ 284.3	$ 291.7

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 465,697	$ 465,697

Deposits - Balances for Core De

Deposits - Balances for Core Deposits and Time Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deposits
Noninterest-bearing demand	$ 21,051,090	$ 22,845,464
Interest-bearing checking	6,672,165	6,524,721
Money market	12,265,024	13,130,300
Savings	2,649,037	2,888,065
Time deposits	13,330,533
Total deposits	55,967,849	53,350,532
Time deposits:
Time deposits, at or above FDIC insurance limit	10,560,000	5,950,000
Domestic office
Deposits
Time deposits	11,878,734	6,940,013
Foreign office
Deposits
Time deposits	$ 1,451,799	$ 1,021,969

Deposits - Scheduled Maturities

Deposits - Scheduled Maturities of Time Deposits (Details) $ in Thousands	Dec. 31, 2022 USD ($)
DEPOSIT ACCOUNTS
2023	$ 13,102,192
2024	201,014
2025	16,009
2026	4,795
2027	6,523
Time deposits	$ 13,330,533

Federal Home Loan Bank Advanc_3

Federal Home Loan Bank Advances and Long-Term Debt - FHLB Advances and LTD (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Federal Home Loan Bank (“FHLB”) advances	$ 0	$ 249,331
FHLB Advances
Debt Instrument [Line Items]
Weighted-average rate (as a percent)	1.89%	1.17%
Parent company
Debt Instrument [Line Items]
Junior Subordinated Notes	$ 147,950	$ 147,658
Weighted-average rate (as a percent)	3.49%	1.74%
Bank | FHLB - Floating
Debt Instrument [Line Items]
Federal Home Loan Bank (“FHLB”) advances	$ 0	$ 249,331
Minimum | Parent company | Subordinated Debt
Debt Instrument [Line Items]
Variable interest rate	6.12%
Minimum | Bank | FHLB - Floating
Debt Instrument [Line Items]
Variable interest rate	0%
Maximum | Parent company | Subordinated Debt
Debt Instrument [Line Items]
Variable interest rate	6.67%

Federal Home Loan Bank Advanc_4

Federal Home Loan Bank Advances and Long-Term Debt - Narrative (Details) $ in Millions	Dec. 31, 2022 USD ($) trust	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Available borrowing capacity from FHLB advances | $	$ 12,770	$ 11,930
Number of wholly owned subsidiaries that are statutory business trusts	6
Junior subordinated debt
Debt Instrument [Line Items]
Number of statutory business trusts formed for the purpose of issuing junior subordinated debt to third party investors	6

Federal Home Loan Bank Advanc_5

Federal Home Loan Bank Advances and Long-Term Debt - Junior Subordinated Debt (Details) - Junior subordinated debt - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Aggregate Principal Amount of Trust Securities	$ 4,641	$ 4,641
Aggregate Principal Amount of the Junior Subordinated Debt	$ 148,000	148,000
East West Capital Trust V
Debt Instrument [Line Items]
Stated Interest Rate, basis spread (as a percent)	1.80%
Current Rate	6.49%
Aggregate Principal Amount of Trust Securities	$ 464	464
Aggregate Principal Amount of the Junior Subordinated Debt	$ 15,000	15,000
East West Capital Trust VI
Debt Instrument [Line Items]
Stated Interest Rate, basis spread (as a percent)	1.50%
Current Rate	6.27%
Aggregate Principal Amount of Trust Securities	$ 619	619
Aggregate Principal Amount of the Junior Subordinated Debt	$ 20,000	20,000
East West Capital Trust VII
Debt Instrument [Line Items]
Stated Interest Rate, basis spread (as a percent)	1.35%
Current Rate	6.12%
Aggregate Principal Amount of Trust Securities	$ 928	928
Aggregate Principal Amount of the Junior Subordinated Debt	$ 30,000	30,000
East West Capital Trust VIII
Debt Instrument [Line Items]
Stated Interest Rate, basis spread (as a percent)	1.40%
Current Rate	6.13%
Aggregate Principal Amount of Trust Securities	$ 619	619
Aggregate Principal Amount of the Junior Subordinated Debt	$ 18,000	18,000
East West Capital Trust IX
Debt Instrument [Line Items]
Stated Interest Rate, basis spread (as a percent)	1.90%
Current Rate	6.67%
Aggregate Principal Amount of Trust Securities	$ 928	928
Aggregate Principal Amount of the Junior Subordinated Debt	$ 30,000	30,000
MCBI Statutory Trust I
Debt Instrument [Line Items]
Stated Interest Rate, basis spread (as a percent)	1.55%
Current Rate	6.32%
Aggregate Principal Amount of Trust Securities	$ 1,083	1,083
Aggregate Principal Amount of the Junior Subordinated Debt	$ 35,000	$ 35,000

Income Taxes - Components of In

Income Taxes - Components of Income Tax Expense/Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current income tax expense (benefit):
Federal	$ 163,797	$ 84,249	$ 84,560
State	160,629	95,939	74,252
Foreign	3,133	(1,554)	671
Total current income tax expense	327,559	178,634	159,483
Deferred income (benefit) tax expense:
Federal	(23,484)	1,528	(28,093)
State	(21,835)	3,259	(11,671)
Foreign	1,331	(25)	(1,751)
Total deferred income (benefit) tax expense	(43,988)	4,762	(41,515)
Income tax expense	$ 283,571	$ 183,396	$ 117,968

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Federal Statutory Rate (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Difference between the effective tax rate implicit in the consolidated financial statements and the statutory federal income tax rate
Statutory U.S. federal tax rate	21%	21%	21%
U.S. state income taxes, net of U.S. federal income tax effect	7.80%	7.40%	7.20%
Tax credits and benefits, net of related expenses	(8.90%)	(11.30%)	(12.40%)
Other, net	0.20%	0.30%	1.40%
Effective tax rate	20.10%	17.40%	17.20%

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Allowance for credit losses and nonperforming assets valuation allowance	$ 191,187	$ 166,398
Investments in qualified affordable housing partnerships, tax credit and other investments, net	21,011	14,977
Stock compensation and other accrued compensation	25,857	23,954
Interest income on nonaccrual loans	5,185	4,192
State taxes	13,259	5,237
Net Unrealized Losses on Debt Securities and Derivatives	309,837	37,423
Tax credit carryforwards	0	8,692
Premises and equipment	3,827	1,434
Lease liabilities	34,859	31,324
Other	6,169	1,018
Total deferred tax assets	611,191	294,649
Deferred tax liabilities:
Equipment lease financing	27,237	26,607
Investments in qualified affordable housing partnerships, tax credit and other investments, net	7,709	12,187
FHLB stock dividends	1,926	1,886
Mortgage servicing assets	1,963	1,759
Acquired debts	1,477	1,536
Prepaid expenses	2,478	1,525
Operating lease right-of-use assets	32,606	29,472
Other	6,270	1,547
Total deferred tax liabilities	81,666	76,519
Net deferred tax assets	$ 529,525	$ 218,130

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Valuation allowance	$ 0	$ 0
Income taxes and interest paid	(5,200,000)
Settlements with taxing authorities	(4,568,000)	$ 0	$ 0
Interest expense	$ (599,000)

Income Taxes - Unrecognized Tax

Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Activity related to unrecognized tax benefits
Beginning balance	$ 5,045	$ 5,045	$ 0
Additions for tax positions related to prior years	0	0	5,045
Settlements with taxing authorities	(4,568)	0	0
Ending balance	$ 477	$ 5,045	$ 5,045

Commitments and Contingencies -

Commitments and Contingencies - Credit-Related Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Commitments to Extend Credit
Expire in One Year or Less	$ 312,795
Expire After Five Years	5,114
Total	452,451
Loan commitments
Commitments to Extend Credit
Expire in One Year or Less	3,680,606
Expire After One Year Through Three Years	3,469,265
Expire After Three Years Through Five Years	971,534
Expire After Five Years	90,166
Total	8,211,571	$ 6,911,398
Commercial letters of credit and SBLCs
Commitments to Extend Credit
Expire in One Year or Less	677,255
Expire After One Year Through Three Years	462,367
Expire After Three Years Through Five Years	69,815
Expire After Five Years	1,082,529
Total	2,291,966	2,221,699
Commitments to Extend Credit
Commitments to Extend Credit
Expire in One Year or Less	4,357,861
Expire After One Year Through Three Years	3,931,632
Expire After Three Years Through Five Years	1,041,349
Expire After Five Years	1,172,695
Total	$ 10,503,537	$ 9,133,097

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Commitments to Extend Credit
Letters of credit	$ 2,290,000	$ 2,220,000
Allowance for Unfunded Credit Commitments	26,200	27,500
Other Commitments
Total	452,451
Accrued Expenses And Other Liabilities
Other Commitments
Total	452,500	309,600
Standby Letters of Credit
Commitments to Extend Credit
Letters of credit	2,270,000	2,140,000
Commercial Letters Of Credit
Commitments to Extend Credit
Letters of credit	21,600	78,900
Loans sold or securitized with recourse | Single Family Residential and Multi-Family Residential | Loans Sold or Securitized with Recourse
Commitments to Extend Credit
Allowance for Unfunded Credit Commitments	$ 37	$ 29

Commitments and Contingencies_3

Commitments and Contingencies - Guarantees Outstanding (Details) - Loans sold or securitized with recourse - Loans Sold or Securitized with Recourse - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Guarantor Obligations, Maximum Potential Future Payments [Abstract]
Expire in One Year or Less	$ 36
Expire After One Year Through Three Years	111
Expire After Three Years Through Five Years	0
Expire After Five Years	21,630
Total	21,777	$ 22,922
Carrying Value	28,101	31,095
Single Family Residential
Guarantor Obligations, Maximum Potential Future Payments [Abstract]
Expire in One Year or Less	36
Expire After One Year Through Three Years	111
Expire After Three Years Through Five Years	0
Expire After Five Years	6,634
Total	6,781	7,926
Carrying Value	6,781	7,926
Multifamily residential
Guarantor Obligations, Maximum Potential Future Payments [Abstract]
Expire in One Year or Less	0
Expire After One Year Through Three Years	0
Expire After Three Years Through Five Years	0
Expire After Five Years	14,996
Total	14,996	14,996
Carrying Value	$ 21,320	$ 23,169

Stock Compensation Plans - Narr

Stock Compensation Plans - Narrative (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) employee $ / shares shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($) $ / shares
RSUs | Cliff
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Modified from cash-settled RSUs (in shares) | shares	0
Weighted-average fair value of awards granted (in dollars per share) | $ / shares	$ 77.91	$ 77.67	$ 39.79
Total fair value of awards that vested	$ 17,600,000	$ 15,400,000	$ 8,900,000
Total unrecognized stock compensation expense	$ 13,800,000
Weighted average period to recognize unrecognized compensation cost	1 year 9 months 3 days
Performance-Based RSUs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target award available for grant	0%
Performance-Based RSUs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target award available for grant	200%
Performance-Based RSUs | Cliff
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Time-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Modified from cash-settled RSUs (in shares) | shares	31,523
Number of grantees affected | employee	119
Plan modification, incremental cost	$ 0
Cash used to settle award	$ 318,000
Weighted-average fair value of awards granted (in dollars per share) | $ / shares	$ 78.15	$ 71.88	$ 40.61
Total fair value of awards that vested	$ 30,000,000	$ 22,700,000	$ 11,500,000
Total unrecognized stock compensation expense	$ 24,300,000
Weighted average period to recognize unrecognized compensation cost	1 year 9 months 14 days
2021 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares) | shares	17,100,000
Shares available (in shares) | shares	4,900,000

Stock Compensation Plans - Summ

Stock Compensation Plans - Summary of Total Share-Based Compensation Expense and Related Tax Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-Based Payment Arrangement [Abstract]
Stock compensation costs	$ 37,601	$ 32,567	$ 29,237
Related net tax benefits (deficiencies) for stock compensation plans	$ 5,293	$ 1,760	$ (1,839)

Stock Compensation Plans - Su_2

Stock Compensation Plans - Summary of Activity for Time-Based and Performance-Based RSUs (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Time-Based RSUs
Shares
Outstanding at beginning of year (in shares)	1,329,946
Modified from cash-settled RSUs (in shares)	31,523
Granted (in shares)	444,359
Vested (in shares)	(373,363)
Forfeited (in shares)	(135,599)
Outstanding at end of year (in shares)	1,296,866	1,329,946
Weighted- Average Grant Date Fair Value
Outstanding at end of year (in dollars per share)	$ 52.65
Modified from cash-settled RSUs (in dollars per share)	77.28
Granted (in dollars per share)	78.15	$ 71.88	$ 40.61
Vested (in dollars per share)	53.07
Forfeited (in dollars per share)	63.15
Outstanding at end of year (in dollars per share)	$ 60.77	$ 52.65
Performance-Based RSUs
Shares
Outstanding at beginning of year (in shares)	369,731
Modified from cash-settled RSUs (in shares)	0
Granted (in shares)	91,874
Vested (in shares)	(125,213)
Forfeited (in shares)	(3,882)
Outstanding at end of year (in shares)	332,510	369,731
Weighted- Average Grant Date Fair Value
Outstanding at end of year (in dollars per share)	$ 54.28
Modified from cash-settled RSUs (in dollars per share)	0
Granted (in dollars per share)	77.91	$ 77.67	$ 39.79
Vested (in dollars per share)	54.64
Forfeited (in dollars per share)	77.91
Outstanding at end of year (in dollars per share)	$ 60.40	$ 54.28
Time Based Restricted Stock Settled in Cash
Shares
Outstanding at beginning of year (in shares)	32,647
Modified from cash-settled RSUs (in shares)	31,523
Granted (in shares)	2,668
Vested (in shares)	(3,471)
Forfeited (in shares)	(321)
Outstanding at end of year (in shares)	0	32,647

Stock Compensation Plans - Stoc

Stock Compensation Plans - Stock Purchase Plan (Details) - Stock Purchase Plan - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Stock purchase plan
Purchase price of shares in terms compared to market price per share (as a percent)	90%
Annual purchase limitation per employee (in dollars per employee)	$ 22,500
Compensation expense	$ 0
Common stock, shares authorized (in shares)	2,000,000
Shares sold to employees (in shares)	48,990	37,725
Value of shares sold to employees under purchase plan	$ 3,200,000	$ 2,600,000
Shares available (in shares)	217,785

Stockholders_ Equity and Earn_3

Stockholders’ Equity and Earnings Per Share - Earnings Per Share Calculations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Basic:
Net income	$ 1,128,083	$ 872,981	$ 567,797
Basic weighted average common shares outstanding (in shares)	141,326	141,826	142,336
Basic EPS (in dollars per share)	$ 7.98	$ 6.16	$ 3.99
Diluted:
Net income	$ 1,128,083	$ 872,981	$ 567,797
Basic weighted average common shares outstanding (in shares)	141,326	141,826	142,336
Diluted impact of unvested RSUs (in shares)	1,166	1,314	655
Diluted weighted average common shares outstanding (in shares)	142,492	143,140	142,991
Diluted EPS (in dollars per share)	$ 7.92	$ 6.10	$ 3.97

Stockholders_ Equity and Earn_4

Stockholders’ Equity and Earnings Per Share - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stockholders' Equity and Earnings Per Share [Line Items]
Amount of stock repurchase authorized by the Board of Directors			$ 500
Repurchase of common stock pursuant to the Stock Repurchase Program (in shares)	1,385,517	0	4,471,682
Average price (in dollars per share)	$ 72.17		$ 32.64
Repurchase of common stock pursuant to the Stock Repurchase Program	$ 100		$ 146
RSUs
Stockholders' Equity and Earnings Per Share [Line Items]
Weighted average shares of anti-dilutive restricted stock units (in shares)	3,000	6,000	134,000

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Components of AOCI (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]
Beginning balance	$ 5,837,218	$ 5,269,175	$ 5,017,617
Other comprehensive (loss) income	(675,248)	(134,706)	62,733
Ending balance	5,984,612	5,837,218	5,269,175
Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(85,703)	52,247	(2,419)
Net unrealized gains (losses) arising during the period	(620,870)	(136,846)	63,329
Amounts reclassified from AOCI	11,758	(1,104)	(8,663)
Other comprehensive (loss) income	(609,112)	(137,950)	54,666
Ending balance	(694,815)	(85,703)	52,247
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	257	(1,230)	0
Net unrealized gains (losses) arising during the period	(52,623)	866	(1,149)
Amounts reclassified from AOCI	2,835	621	(81)
Other comprehensive (loss) income	(49,788)	1,487	(1,230)
Ending balance	(49,531)	257	(1,230)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(4,935)	(6,692)	(15,989)
Net unrealized gains (losses) arising during the period	(16,348)	1,757	9,297
Amounts reclassified from AOCI	0	0	0
Other comprehensive (loss) income	(16,348)	1,757	9,297
Ending balance	(21,283)	(4,935)	(6,692)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(90,381)	44,325	(18,408)
Net unrealized gains (losses) arising during the period	(689,841)	(134,223)	71,477
Amounts reclassified from AOCI	14,593	(483)	(8,744)
Other comprehensive (loss) income	(675,248)	(134,706)	62,733
Ending balance	$ (765,629)	$ (90,381)	$ 44,325

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Before - Tax
Net change		$ (949,946)	$ (193,420)	$ 83,250
Tax Effect
Net change		274,698	58,714	(20,517)
Net-of- Tax
Amortization of unrealized losses on transferred securities	$ (113,000)	(113,000)
Other comprehensive (loss) income		(675,248)	(134,706)	62,733
Debt Securities
Before - Tax
Net unrealized (losses) gains arising during the period		(881,516)	(194,393)	89,868
Net realized (gains) losses reclassified into net income		(1,306)	(1,568)	(12,299)
Amortization of unrealized losses on transferred securities		18,000	0	0
Net change		(864,822)	(195,961)	77,569
Tax Effect
Net unrealized gains (losses) arising during the period		260,646	57,547	(26,539)
Net realized (gains) losses reclassified into net income		386	464	3,636
Amortization of unrealized losses on transferred securities		(5,322)	0	0
Net change		255,710	58,011	(22,903)
Net-of- Tax
Net unrealized gains (losses) arising during the period		(620,870)	(136,846)	63,329
Net realized (gains) losses reclassified into net income		(920)	(1,104)	(8,663)
Amortization of unrealized losses on transferred securities		12,678	0	0
Net realized gains reclassified into net income		11,758	(1,104)	(8,663)
Other comprehensive (loss) income		(609,112)	(137,950)	54,666
Cash Flow Hedges
Net-of- Tax
Net unrealized gains (losses) arising during the period		(52,623)	866	(1,149)
Net realized gains reclassified into net income		2,835	621	(81)
Other comprehensive (loss) income		(49,788)	1,487	(1,230)
Foreign Currency Translation Adjustments
Before - Tax
Net unrealized (losses) gains arising during the period		(15,059)	463	7,398
Net change		(15,059)	463	7,398
Tax Effect
Net unrealized gains (losses) arising during the period		(1,289)	1,294	1,899
Net change		(1,289)	1,294	1,899
Net-of- Tax
Net unrealized gains (losses) arising during the period		(16,348)	1,757	9,297
Net realized gains reclassified into net income		0	0	0
Other comprehensive (loss) income		(16,348)	1,757	9,297
Cash Flow Hedges
Before - Tax
Net unrealized (losses) gains arising during the period		(74,069)	1,210	(1,604)
Net realized gains reclassified into net income		4,004	868	(113)
Net change		(70,065)	2,078	(1,717)
Tax Effect
Net unrealized gains (losses) arising during the period		21,446	(344)	455
Net realized gains reclassified into net income		(1,169)	(247)	32
Net change		20,277	(591)	487
Net-of- Tax
Net unrealized gains (losses) arising during the period		(52,623)	866	(1,149)
Net realized gains reclassified into net income		2,835	621	(81)
Other comprehensive (loss) income		$ (49,788)	$ 1,487	$ (1,230)

Regulatory Requirements and M_3

Regulatory Requirements and Matters - Narrative (Details)	Dec. 31, 2022
Capital adequacy
Banking regulation, tier one risk-based capital ratio, capital a, minimum	0.060
Banking regulation,total risk-based capital ratio, capital adequacy, minimum	0.080
Banking regulation, tier one leverage capital ratio, capital adequacy, minimum	0.040
Fully phased-in capital conservation buffer	2.50%
Common equity tier 1 capital adequacy to risk weighted assets	0.045
East West Bank
Capital adequacy
Banking regulation, tier one risk-based capital ratio, capital a, minimum	0.060
Banking regulation,total risk-based capital ratio, capital adequacy, minimum	0.080
Banking regulation, tier one leverage capital ratio, capital adequacy, minimum	0.040
Tier 1 Common Equity Capital (to risk-weighted assets), Ratio (as a percent)	0.065
Common equity tier 1 capital adequacy to risk weighted assets	0.045

Regulatory Requirements and M_4

Regulatory Requirements and Matters - Regulatory Capital Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Minimum Capital Ratios
Total capital ratio required for capital adequacy to risk weighted assets	0.080
Tier 1 risk based capital ratio required for capital adequacy to risk weighted assets	0.060
Common equity tier 1 capital adequacy to risk weighted assets	0.045
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	0.040
Well- Capitalized Requirement
Fully phased-in capital conservation buffer	2.50%
Company
Actual
Total capital (to risk-weighted assets), Amount	$ 7,003,299	$ 6,124,827
Tier I capital (to risk-weighted assets), Amount	6,347,108	5,559,357
Tier 1 Common Equity capital (to risk-weighted assets), Amount	6,347,108	5,559,357
Tier 1 leverage capital (to adjusted average assets), Amount	6,347,108	5,559,357
Risk-weighted assets	50,036,719	43,585,105
Adjusted quarterly average total assets	$ 65,221,597	$ 62,387,003
Total capital (to risk-weighted assets), Ratio (as a percent)	0.140	0.141
Tier I capital (to risk-weighted assets), Ratio (as a percent)	0.127	0.128
Tier 1 Common Equity capital (to risk-weighted assets), Ratio (as a percent)	0.127	0.128
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	0.098	0.090
Minimum Capital Ratios
Total capital ratio required for capital adequacy to risk weighted assets	0.080
Tier 1 risk based capital ratio required for capital adequacy to risk weighted assets	0.060
Common equity tier 1 capital adequacy to risk weighted assets	0.045
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	0.040
Fully phased-in minimum capital ratios
Total capital (to risk-weighted assets), Ratio (as a percent)	10.50%
Tier I capital (to risk-weighted assets), Ratio (as a percent)	8.50%
Tier 1 Common Equity Capital (to risk-weighted assets), Ratio (as a percent)	7%
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	4%
Well- Capitalized Requirement
Total capital (to risk-weighted assets), Ratio (as a percent)	0.100
Tier I capital (to risk-weighted assets), Ratio (as a percent)	0.060
Tier 1 Common Equity Capital (to risk-weighted assets), Ratio (as a percent)	0.065
East West Bank
Actual
Total capital (to risk-weighted assets), Amount	$ 6,760,612	$ 5,766,734
Tier I capital (to risk-weighted assets), Amount	6,252,421	5,349,264
Tier 1 Common Equity capital (to risk-weighted assets), Amount	6,252,421	5,349,264
Tier 1 leverage capital (to adjusted average assets), Amount	6,252,421	5,349,264
Risk-weighted assets	50,024,772	43,572,086
Adjusted quarterly average total assets	$ 65,198,267	$ 62,366,514
Total capital (to risk-weighted assets), Ratio (as a percent)	0.135	0.132
Tier I capital (to risk-weighted assets), Ratio (as a percent)	0.125	0.123
Tier 1 Common Equity capital (to risk-weighted assets), Ratio (as a percent)	0.125	0.123
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	0.097	0.086
Minimum Capital Ratios
Total capital ratio required for capital adequacy to risk weighted assets	0.080
Tier 1 risk based capital ratio required for capital adequacy to risk weighted assets	0.060
Common equity tier 1 capital adequacy to risk weighted assets	0.045
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	0.040
Fully phased-in minimum capital ratios
Total capital (to risk-weighted assets), Ratio (as a percent)	10.50%
Tier I capital (to risk-weighted assets), Ratio (as a percent)	8.50%
Tier 1 Common Equity Capital (to risk-weighted assets), Ratio (as a percent)	7%
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	4%
Well- Capitalized Requirement
Total capital (to risk-weighted assets), Ratio (as a percent)	0.100
Tier I capital (to risk-weighted assets), Ratio (as a percent)	0.080
Tier 1 Common Equity Capital (to risk-weighted assets), Ratio (as a percent)	0.065
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	0.050

Business Segments - Narrative (

Business Segments - Narrative (Details)	12 Months Ended
	Dec. 31, 2022 segment
Segment Reporting [Abstract]
Number of reportable segments	3
Number of Core Segment	2

Business Segments - Operating R

Business Segments - Operating Results and Other Key Financial Measures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information
Net interest income before (reversal of) provision for credit losses	$ 2,045,881	$ 1,531,571	$ 1,377,193
(Reversal of) provision for credit losses	73,500	(35,000)	210,653
Noninterest income	298,666	285,895	235,547
Noninterest expense	859,393	796,089	716,322
INCOME BEFORE INCOME TAXES	1,411,654	1,056,377	685,765
Segment net income	1,128,083	872,981	567,797
Segment assets	64,112,150	60,870,701	52,156,913
Consumer and Business Banking
Segment Reporting Information
Net interest income before (reversal of) provision for credit losses	1,170,850	697,101	530,829
(Reversal of) provision for credit losses	27,197	(4,998)	3,885
Noninterest income	110,139	94,125	64,115
Noninterest expense	397,882	364,635	331,750
INCOME BEFORE INCOME TAXES	855,910	431,589	259,309
Segment net income	608,120	308,630	185,782
Segment assets	17,385,804	14,961,809	13,351,060
Commercial Banking
Segment Reporting Information
Net interest income before (reversal of) provision for credit losses	892,386	766,202	706,286
(Reversal of) provision for credit losses	46,303	(30,002)	206,768
Noninterest income	179,248	163,768	142,337
Noninterest expense	314,185	275,649	266,923
INCOME BEFORE INCOME TAXES	711,146	684,323	374,932
Segment net income	507,467	489,233	268,476
Segment assets	33,042,785	28,556,706	26,958,766
Other
Segment Reporting Information
Net interest income before (reversal of) provision for credit losses	(17,355)	68,268	140,078
(Reversal of) provision for credit losses	0	0	0
Noninterest income	9,279	28,002	29,095
Noninterest expense	147,326	155,805	117,649
INCOME BEFORE INCOME TAXES	(155,402)	(59,535)	51,524
Segment net income	12,496	75,118	113,539
Segment assets	$ 13,683,561	$ 17,352,186	$ 11,847,087

Parent Company Condensed Fina_3

Parent Company Condensed Financial Statements - Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents due from subsidiary bank	$ 3,481,784	$ 3,912,935
Other assets	1,608,038	1,459,687
TOTAL	64,112,150	60,870,701	$ 52,156,913
LIABILITIES AND STOCKHOLDERS’ EQUITY
Total stockholders’ equity	5,984,612	5,837,218	$ 5,269,175	$ 5,017,617
TOTAL	64,112,150	60,870,701
Parent Company
ASSETS
Cash and cash equivalents due from subsidiary bank	228,531	345,018
Investments in Tax Credit Investments, net	1,925	4,082
Other assets	8,516	9,407
TOTAL	6,142,593	5,994,618
LIABILITIES AND STOCKHOLDERS’ EQUITY
Long-term debt	147,950	147,658
Other liabilities	10,031	9,742
Total stockholders’ equity	5,984,612	5,837,218
TOTAL	6,142,593	5,994,618
Parent Company | Bank
ASSETS
Investments in Subsidiaries	5,889,775	5,626,975
Parent Company | Nonbank
ASSETS
Investments in Subsidiaries	$ 13,846	$ 9,136

Parent Company Condensed Fina_4

Parent Company Condensed Financial Statements - Condensed Statement of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of income
Interest expense on long-term debt	$ 275,350	$ 87,163	$ 217,849
Compensation and employee benefits	477,635	433,728	404,071
(Impairment recoveries) amortization of tax credit and other investments	113,358	122,457	70,082
Other expense	118,166	96,330	92,646
Income tax benefit	(283,571)	(183,396)	(117,968)
NET INCOME	1,128,083	872,981	567,797
Parent Company
Statement of income
Other income	0	11	3
Total income	240,157	200,093	511,112
Interest expense on long-term debt	5,450	2,974	3,877
Compensation and employee benefits	6,708	6,370	6,210
(Impairment recoveries) amortization of tax credit and other investments	(786)	425	1,248
Other expense	2,040	1,306	1,184
Total expense	13,412	11,075	12,519
Income before income tax benefit and equity in undistributed income of subsidiaries	226,745	189,018	498,593
Income tax benefit	4,269	3,005	4,158
Undistributed earnings of subsidiaries, primarily bank	897,069	680,958	65,046
NET INCOME	1,128,083	872,981	567,797
Parent Company | Bank
Statement of income
Dividends from subsidiaries	240,000	200,000	511,000
Parent Company | Nonbank
Statement of income
Dividends from subsidiaries	$ 157	$ 82	$ 109

Parent Company Condensed Fina_5

Parent Company Condensed Financial Statements - Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of cash flows
Net income	$ 1,128,083	$ 872,981	$ 567,797
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income (benefit) tax expense	(43,988)	4,762	(41,515)
Net change in other assets	187,512	124,496	(340,566)
Net change in other liabilities	461,385	(63,360)	136,260
Net cash provided by operating activities	2,066,022	1,168,422	692,644
CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in investments in tax credit investments	(167,303)	(189,836)	(154,887)
Distributions received from equity method investees	18,221	14,440	15,901
Net cash (used in) provided by investing activities	(4,582,892)	(9,117,204)	(6,873,736)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements	3,178	2,573	2,326
Stocks tendered for payment of withholding taxes	(19,087)	(15,702)	(8,253)
Repurchase of common stocks pursuant to the Stock Repurchase Program	(99,990)	0	(145,966)
Cash dividends paid	(228,381)	(188,762)	(158,222)
Net cash provided by financing activities	2,114,210	7,835,045	6,908,908
Net (decrease) increase in cash and cash equivalents	(431,151)	(105,036)	756,822
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	3,912,935	4,017,971	3,261,149
CASH AND CASH EQUIVALENTS, END OF YEAR	3,481,784	3,912,935	4,017,971
Parent Company
Statement of cash flows
Net income	1,128,083	872,981	567,797
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed earnings of subsidiaries, principally bank	(897,069)	(680,958)	(65,046)
Amortization expense	1,333	1,877	1,523
Deferred income (benefit) tax expense	(2,193)	2,721	491
Net change in other assets	4,250	(5,685)	40
Net change in other liabilities	779	(81,706)	77,052
Net cash provided by operating activities	235,183	109,230	581,857
CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in investments in tax credit investments	(1,612)	(346)	(172)
Distributions received from equity method investees	410	436	4,096
Net increase in investments in and advances to nonbank subsidiaries	(6,188)	(1,476)	(2,732)
Net cash (used in) provided by investing activities	(7,390)	(1,386)	1,192
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements	3,178	2,573	2,326
Stocks tendered for payment of withholding taxes	(19,087)	(15,702)	(8,253)
Repurchase of common stocks pursuant to the Stock Repurchase Program	(99,990)	0	(145,966)
Cash dividends paid	(228,381)	(188,762)	(158,222)
Net cash provided by financing activities	(344,280)	(201,891)	(310,115)
Net (decrease) increase in cash and cash equivalents	(116,487)	(94,047)	272,934
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	345,018	439,065	166,131
CASH AND CASH EQUIVALENTS, END OF YEAR	$ 228,531	$ 345,018	$ 439,065

Subsequent Events (Details)

Subsequent Events (Details)	Feb. 21, 2023 $ / shares
Subsequent Event
Subsequent events
Dividends paid per common share (in dollars per share)	$ 0.48