Customers Bancorp (CUBI) 10-Q 12 Nov 24 2024 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2024	Nov. 07, 2024
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	001-35542
Entity Registrant Name	Customers Bancorp, Inc.
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	27-2290659
Entity Address, Address Line One	701 Reading Avenue
Entity Address, City or Town	West Reading
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19611
City Area Code	610
Local Phone Number	933-2000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		31,349,258
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001488813
Current Fiscal Year End Date	--12-31
Voting Common Stock, par value $1.00 per share
Entity Information [Line Items]
Title of 12(b) Security	Voting Common Stock, par value $1.00 per share
Trading Symbol	CUBI
Security Exchange Name	NYSE
Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series E, par value $1.00 per share
Entity Information [Line Items]
Title of 12(b) Security	Fixed-to-Floating Rate Non-Cumulative PerpetualPreferred Stock, Series E, par value $1.00 per share
Trading Symbol	CUBI/PE
Security Exchange Name	NYSE
Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series F, par value $1.00 per share
Entity Information [Line Items]
Title of 12(b) Security	Fixed-to-Floating Rate Non-Cumulative PerpetualPreferred Stock, Series F, par value $1.00 per share
Trading Symbol	CUBI/PF
Security Exchange Name	NYSE
5.375% Subordinated Notes due 2034
Entity Information [Line Items]
Title of 12(b) Security	5.375% Subordinated Notes due 2034
Trading Symbol	CUBB
Security Exchange Name	NYSE

CONSOLIDATED BALANCE SHEET _ UN

CONSOLIDATED BALANCE SHEET — UNAUDITED - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks	$ 39,429	$ 45,210
Interest earning deposits	3,048,593	3,801,136
Cash and cash equivalents	3,088,022	3,846,346
Investment securities, at fair value (includes allowance for credit losses of $4,639 and $3,952, respectively)	2,412,069	2,405,640
Investment securities held to maturity	1,064,437	1,103,170
Loans held for sale (includes $219,621 and $189,277, respectively, at fair value)	275,420	340,317
Loans and leases receivable	12,527,283	11,963,855
Loans receivable, mortgage finance, at fair value	1,250,413	897,912
Allowance for credit losses on loans and leases	(133,158)	(135,311)
Total loans and leases receivable, net of allowance for credit losses on loans and leases	13,644,538	12,726,456
FHLB, Federal Reserve Bank, and other restricted stock	95,035	109,548
Accrued interest receivable	115,588	114,766
Bank premises and equipment, net	6,730	7,371
Bank-owned life insurance	295,531	292,193
Goodwill and other intangibles	3,629	3,629
Other assets	455,083	366,829
Total assets	21,456,082	21,316,265
Deposits:
Demand, non-interest bearing	4,670,809	4,422,494
Interest bearing	13,398,580	13,497,742
Total deposits	18,069,389	17,920,236
FHLB advances	1,117,229	1,203,207
Other borrowings	99,033	123,840
Subordinated debt	182,439	182,230
Accrued interest payable and other liabilities	186,812	248,358
Total liabilities	19,654,902	19,677,871
Commitments and contingencies (NOTE 15)
Shareholders’ equity:
Preferred stock, par value $1.00 per share; liquidation preference $25.00 per share; 100,000,000 shares authorized, 5,700,000 shares issued and outstanding as of September 30, 2024 and December 31, 2023	137,794	137,794
Common stock, par value $1.00 per share; 200,000,000 shares authorized; 35,734,517 and 35,459,342 shares issued as of September 30, 2024 and December 31, 2023; 31,342,107 and 31,440,906 shares outstanding as of September 30, 2024 and December 31, 2023	35,734	35,459
Additional paid in capital	571,609	564,538
Retained earnings	1,302,745	1,159,582
Accumulated other comprehensive income (loss), net	(106,082)	(136,569)
Treasury stock, at cost (4,392,410 and 4,018,436 shares as of September 30, 2024 and December 31, 2023)	(140,620)	(122,410)
Total shareholders’ equity	1,801,180	1,638,394
Total liabilities and shareholders’ equity	$ 21,456,082	$ 21,316,265

CONSOLIDATED BALANCE SHEET _ _2

CONSOLIDATED BALANCE SHEET — UNAUDITED (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Allowance for credit losses, available for sale securities	$ 4,639	$ 3,952
Loans held for sale at fair value	$ 219,621	$ 189,277
Preferred stock, par value (usd per share)	$ 1	$ 1
Preferred stock, liquidation preference (usd per share)	$ 25	$ 25
Preferred stock, shares authorized (shares)	100,000,000	100,000,000
Preferred stock, shares issued (shares)	5,700,000	5,700,000
Preferred stock, shares outstanding (shares)	5,700,000	5,700,000
Common stock, par value (usd per share)	$ 1	$ 1
Common stock, shares authorized (shares)	200,000,000	200,000,000
Common stock, shares issued (shares)	35,734,517	35,459,342
Common stock, shares outstanding (shares)	31,342,107	31,440,906
Treasury stock (shares)	4,392,410	4,018,436

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (LOSS) — UNAUDITED - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Interest income:
Loans and leases	$ 228,659	$ 271,107	$ 670,923	$ 757,064
Investment securities	46,265	54,243	140,653	149,585
Interest earning deposits	44,372	43,800	142,695	81,819
Loans held for sale	10,907	4,664	36,626	27,514
Other	1,910	2,526	7,031	5,463
Total interest income	332,113	376,340	997,928	1,021,445
Interest expense:
Deposits	155,829	145,825	458,338	426,130
FHLB advances	12,590	26,485	39,512	61,140
FRB advances	0	0	0	6,286
Subordinated debt	3,537	2,689	8,960	8,067
Other borrowings	1,612	1,568	4,535	4,879
Total interest expense	173,568	176,567	511,345	506,502
Net interest income	158,545	199,773	486,583	514,943
Provision for credit losses	17,066	17,856	52,257	61,088
Net interest income after provision for credit losses	141,479	181,917	434,326	453,855
Non-interest income:
Commercial lease income	10,093	8,901	30,058	27,144
Loan fees	8,011	6,029	18,524	14,290
Bank-owned life insurance	2,049	1,973	7,317	9,617
Mortgage finance transactional fees	1,087	1,018	3,091	3,468
Net gain (loss) on sale of loans and leases	(14,548)	(348)	(14,776)	(1,109)
Loss on sale of capital call lines of credit	0	0	0	(5,037)
Net gain (loss) on sale of investment securities	0	(429)	(749)	(429)
Unrealized gain on equity method investments	0	0	11,041	0
Other	1,865	631	6,319	3,949
Total non-interest income	8,557	17,775	60,825	51,893
Non-interest expense:
Salaries and employee benefits	47,717	33,845	128,689	99,310
Technology, communication and bank operations	13,588	15,667	51,719	48,663
Commercial lease depreciation	7,811	7,338	23,610	22,541
Professional services	9,048	8,569	21,505	25,357
Loan servicing	3,778	3,858	11,325	13,296
Occupancy	2,987	2,471	8,454	7,750
FDIC assessments, non-income taxes and regulatory fees	7,902	8,551	31,607	21,059
Advertising and promotion	908	650	2,844	2,245
Legal settlement expense	0	4,096	0	4,096
Other	10,279	4,421	26,886	14,579
Total non-interest expense	104,018	89,466	306,639	258,896
Income before income tax expense (benefit)	46,018	110,226	188,512	246,852
Income tax expense (benefit)	(725)	23,470	33,958	58,801
Net income	46,743	86,756	154,554	188,051
Preferred stock dividends	3,806	3,803	11,391	10,826
Net income available to common shareholders, basic	42,937	82,953	143,163	177,225
Net income available to common shareholders, diluted	$ 42,937	$ 82,953	$ 143,163	$ 177,225
Basic earnings per common share (usd per share)	$ 1.36	$ 2.65	$ 4.54	$ 5.63
Diluted earnings per common share (usd per share)	$ 1.31	$ 2.58	$ 4.37	$ 5.53

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) — UNAUDITED - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 46,743	$ 86,756	$ 154,554	$ 188,051
Unrealized gains (losses) on available for sale debt securities:
Unrealized gains (losses) arising during the period	32,810	23,666	36,439	14,535
Income tax effect	(8,432)	(6,011)	(9,351)	(3,692)
Reclassification adjustments for (gains) losses included in net income	0	(429)	749	(429)
Income tax effect	0	109	(193)	109
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity	1,209	1,379	3,821	3,700
Income tax effect	(311)	(350)	(978)	(939)
Net unrealized gains (losses) on available for sale debt securities	25,276	18,364	30,487	13,284
Other comprehensive income (loss), net of income tax effect	25,276	18,364	30,487	13,284
Comprehensive income (loss)	$ 72,019	$ 105,120	$ 185,041	$ 201,335

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY — UNAUDITED - USD ($) $ in Thousands		Total	Preferred Stock	Common Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance, preferred stock (shares) at Dec. 31, 2022			5,700,000
Beginning balance at Dec. 31, 2022		$ 1,402,961	$ 137,794	$ 35,012	$ 551,721	$ 924,134	$ (163,096)	$ (82,604)
Beginning balance, common stock (shares) at Dec. 31, 2022				32,373,697
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		188,051				188,051
Other comprehensive income (loss)		13,284					13,284
Preferred stock dividends	[1]	(10,826)				(10,826)
Share-based compensation expense		9,979			9,979
Issuance of common stock under share-based compensation arrangements (shares)				317,440
Issuance of common stock under share-based compensation arrangements		$ (2,036)		$ 318	(2,354)
Repurchase of common shares (in shares)		(1,379,883)		(1,379,883)
Repurchase of common shares		$ (39,806)						(39,806)
Ending balance, preferred stock (shares) at Sep. 30, 2023			5,700,000
Ending balance at Sep. 30, 2023		1,561,607	$ 137,794	$ 35,330	559,346	1,101,359	(149,812)	(122,410)
Ending balance, common stock (shares) at Sep. 30, 2023				31,311,254
Beginning balance, preferred stock (shares) at Jun. 30, 2023			5,700,000
Beginning balance at Jun. 30, 2023		1,456,652	$ 137,794	$ 35,301	555,737	1,018,406	(168,176)	(122,410)
Beginning balance, common stock (shares) at Jun. 30, 2023				31,282,318
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		86,756				86,756
Other comprehensive income (loss)		18,364					18,364
Preferred stock dividends	[2]	(3,803)				(3,803)
Share-based compensation expense		3,510			3,510
Issuance of common stock under share-based compensation arrangements (shares)				28,936
Issuance of common stock under share-based compensation arrangements		$ 128		$ 29	99
Repurchase of common shares (in shares)		0
Ending balance, preferred stock (shares) at Sep. 30, 2023			5,700,000
Ending balance at Sep. 30, 2023		$ 1,561,607	$ 137,794	$ 35,330	559,346	1,101,359	(149,812)	(122,410)
Ending balance, common stock (shares) at Sep. 30, 2023				31,311,254
Beginning balance, preferred stock (shares) at Dec. 31, 2023		5,700,000	5,700,000
Beginning balance at Dec. 31, 2023		$ 1,638,394	$ 137,794	$ 35,459	564,538	1,159,582	(136,569)	(122,410)
Beginning balance, common stock (shares) at Dec. 31, 2023		31,440,906		31,440,906
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 154,554				154,554
Other comprehensive income (loss)		30,487					30,487
Preferred stock dividends	[1]	(11,391)				(11,391)
Share-based compensation expense		10,985			10,985
Issuance of common stock under share-based compensation arrangements (shares)				275,175
Issuance of common stock under share-based compensation arrangements		$ (3,639)		$ 275	(3,914)
Repurchase of common shares (in shares)		(373,974)		(373,974)
Repurchase of common shares		$ (18,210)						(18,210)
Ending balance, preferred stock (shares) at Sep. 30, 2024		5,700,000	5,700,000
Ending balance at Sep. 30, 2024		$ 1,801,180	$ 137,794	$ 35,734	571,609	1,302,745	(106,082)	(140,620)
Ending balance, common stock (shares) at Sep. 30, 2024		31,342,107		31,342,107
Beginning balance, preferred stock (shares) at Jun. 30, 2024			5,700,000
Beginning balance at Jun. 30, 2024		$ 1,746,865	$ 137,794	$ 35,686	567,345	1,259,808	(131,358)	(122,410)
Beginning balance, common stock (shares) at Jun. 30, 2024				31,667,655
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		46,743				46,743
Other comprehensive income (loss)		25,276					25,276
Preferred stock dividends	[2]	(3,806)				(3,806)
Share-based compensation expense		3,739			3,739
Issuance of common stock under share-based compensation arrangements (shares)				48,426
Issuance of common stock under share-based compensation arrangements		$ 573		$ 48	525
Repurchase of common shares (in shares)		(373,974)		(373,974)
Repurchase of common shares		$ (18,210)						(18,210)
Ending balance, preferred stock (shares) at Sep. 30, 2024		5,700,000	5,700,000
Ending balance at Sep. 30, 2024		$ 1,801,180	$ 137,794	$ 35,734	$ 571,609	$ 1,302,745	$ (106,082)	$ (140,620)
Ending balance, common stock (shares) at Sep. 30, 2024		31,342,107		31,342,107
[1] Dividends per share of $2.060879 and $1.988429 were declared on Series E and F preferred stock, respectively, for the nine months ended September 30, 2024. Dividends per share of $1.941704 and $1.869779 were declared on Series E and F preferred stock, respectively, for the nine months ended September 30, 2023. Dividends per share of $0.678761 and $0.654873 were declared on Series E and F preferred stock, respectively, for the three months ended September 30, 2024. Dividends per share of $0.6831 and $0.658950 were declared on Series E and F preferred stock, respectively, for the three months ended September 30, 2023.

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY — UNAUDITED (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Series E Preferred Stock
Preferred stock, dividends, per share, cash paid (usd per share)	$ 0.678761	$ 0.6831	$ 2.060879	$ 1.941704
Series F Preferred Stock
Preferred stock, dividends, per share, cash paid (usd per share)	$ 0.654873	$ 0.658950	$ 1.988429	$ 1.869779

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS — UNAUDITED - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash Flows from Operating Activities
Net income from continuing operations	$ 154,554	$ 188,051
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	52,257	61,088
Depreciation and amortization	24,458	24,226
Share-based compensation expense	10,722	10,048
Deferred taxes	(697)	21,999
Net amortization (accretion) of investment securities premiums and discounts	(3,281)	(8,859)
Unrealized (gain) loss on investment securities	(324)	197
Net (gain) loss on sale of investment securities	749	429
Unrealized gain on equity method investments	(11,041)	0
Impairment loss on fixed assets and leases	0	124
Unrealized (gain) loss on derivatives	(1,089)	(344)
Settlement of terminated fair value hedge derivatives	0	4,630
(Gain) loss on sale of leased assets under lessor operating leases	(1,693)	439
Fair value adjustment on loans held for sale	607	0
Net (gain) loss on sale of loans and leases	14,776	869
Loss on sale of capital call lines of credit	0	5,037
Origination and purchases of loans held for sale	(1,034,072)	(470,318)
Proceeds from the sales and repayments of loans held for sale	952,271	454,867
Amortization (accretion) of loan net deferred fees, discounts and premiums	(21,580)	(74,016)
Earnings on investment in bank-owned life insurance	(7,317)	(9,617)
(Increase) decrease in accrued interest receivable and other assets	(56,371)	917
Increase (decrease) in accrued interest payable and other liabilities	(61,274)	33,339
Net Cash Provided By (Used In) Operating Activities	11,655	243,106
Cash Flows from Investing Activities
Proceeds from maturities, calls and principal repayments of investment securities available for sale	457,970	228,503
Proceeds from maturities, calls and principal repayments of investment securities held to maturity	217,338	175,896
Proceeds from sales of investment securities available for sale	240,847	4,075
Purchases of investment securities available for sale	(665,800)	0
Purchases of investment securities held to maturity	(14,844)	(73,074)
Purchases of equity method investments	(5,000)	0
Origination of mortgage finance loans	(16,495,064)	(15,385,554)
Proceeds from repayments of mortgage finance loans	16,141,964	15,766,489
Net (increase) decrease in loans and leases, excluding mortgage finance loans	(538,621)	1,586,922
Proceeds from sales of loans and leases	34,426	409,503
Purchases of loans	(121,222)	(702,409)
Proceeds from bank-owned life insurance	5,110	56,645
Net proceeds from sale of FHLB, Federal Reserve Bank, and other restricted stock	15,508
Net purchases from sale of FHLB, Federal Reserve Bank, and other restricted stock		(51,667)
Purchases of bank premises and equipment	(992)	(521)
Proceeds from sale of fixed assets	0	73
Proceeds from sale of other real estate owned	79	33
Proceeds from sales of leased assets under lessor operating leases	14,576	2,515
Purchases of leased assets under lessor operating leases	(31,299)	(20,257)
Net Cash Provided By (Used In) Investing Activities	(745,024)	1,997,172
Cash Flows from Financing Activities
Net increase (decrease) in deposits	128,395	36,624
Net increase (decrease) in short-term borrowed funds from FHLB	0	(300,000)
Proceeds from long-term borrowed funds from FHLB and FRB	155,000	2,565,000
Repayments of long-term borrowed funds from FHLB and FRB	(250,000)	(1,525,000)
Repayments of other long-term borrowings	(25,000)	0
Preferred stock dividends paid	(11,501)	(10,823)
Purchase of treasury stock	(18,210)	(39,806)
Payments of employee taxes withheld from share-based awards	(5,150)	(2,429)
Proceeds from issuance of common stock	1,511	324
Net Cash Provided By (Used In) Financing Activities	(24,955)	723,890
Net Increase (Decrease) in Cash and Cash Equivalents	(758,324)	2,964,168
Cash and Cash Equivalents – Beginning	3,846,346	455,806
Cash and Cash Equivalents – Ending	3,088,022	3,419,974
Non-cash Investing and Financing Activities:
Purchases of investment securities held to maturity upon sale of consumer installment loans	160,029	436,841
Transfer of loans held for investment to held for sale	55,724	309,076
Transfer of loans held for sale to held for investment	$ 5,210	$ 14,377

DESCRIPTION OF THE BUSINESS

DESCRIPTION OF THE BUSINESS	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF THE BUSINESS	DESCRIPTION OF THE BUSINESS Customers Bancorp, Inc. (“Customers Bancorp”) is a bank holding company engaged in banking activities through its wholly owned subsidiary, Customers Bank (“the Bank”), collectively referred to as “Customers” herein. Customers Bancorp and its wholly owned subsidiaries, the Bank, and non-bank subsidiaries, serve businesses and residents in Berks County and Southeastern Pennsylvania (Bucks, Chester and Philadelphia Counties); New York (Westchester and Suffolk Counties, and Manhattan); Hamilton, New Jersey; Boston, Massachusetts; Providence, Rhode Island; Portsmouth, New Hampshire; Chicago, Illinois; Dallas, Texas; Wilmington, North Carolina; and nationally for certain loan and deposit products. The Bank has seven branches and provides commercial banking products, primarily loans and deposits. In addition, the Bank also administratively supports loan and other financial products, including equipment finance leases, to customers through its limited-purpose offices. The Bank also serves specialized businesses nationwide, including its mortgage finance loans, commercial equipment financing, SBA lending, specialized lending and consumer loans through relationships with fintech companies. The Bank is subject to regulation of the Pennsylvania Department of Banking and Securities and the Federal Reserve Bank and is periodically examined by those regulatory authorities.

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION	SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION Basis of Presentation The interim unaudited consolidated financial statements have been prepared in conformity with U.S. GAAP and pursuant to the rules and regulations of the SEC. These interim unaudited consolidated financial statements reflect all normal and recurring adjustments that are, in the opinion of management, necessary to present a fair statement of the financial position and the results of operations and cash flows of Customers Bancorp and subsidiaries for the interim periods presented. Certain information and footnote disclosures normally included in the annual consolidated financial statements have been omitted from these interim unaudited consolidated financial statements as permitted by SEC rules and regulations. The December 31, 2023 consolidated balance sheet presented in this report has been derived from Customers Bancorp’s audited 2023 consolidated financial statements. Management believes that the disclosures are adequate to present fairly the consolidated financial statements as of the dates and for the periods presented. These interim unaudited consolidated financial statements should be read in conjunction with the 2023 consolidated financial statements of Customers Bancorp and subsidiaries included in Customers’ Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on February 29, 2024 (the “2023 Form 10-K”). The 2023 Form 10-K describes Customers Bancorp’s significant accounting policies. There have been no material changes to Customers Bancorp’s significant accounting policies noted above for the three and nine months ended September 30, 2024. Recently Issued Accounting Standards Presented below are recently issued accounting standards that Customers has adopted as well as those that the FASB has issued but are not yet effective. Accounting Standards Adopted in 2024 Standard Summary of Guidance Effects on Financial Statements ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions Issued June 2022 • Clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and not considered in measuring fair value. • Prohibits recognition and measurement of a contractual sale restriction on the sale of an equity security as a separate unit of account. • Provides disclosure requirements for the equity securities subject to contractual sale restrictions. • Effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial statements that have not yet been issued or made available for issuance. • Customers adopted this guidance on January 1, 2024. This guidance did not have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. ASU 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method Issued March 2023 • Provides an election to account for tax equity investments, regardless of the tax credit program, using the proportional amortization method provided that certain conditions are met. • Customers adopted this guidance on January 1, 2024. This guidance did not have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. Accounting Standards Issued But Not Yet Adopted Standard Summary of Guidance Effects on Financial Statements ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures Issued November 2023 • Requires a public entity, including a public entity that has a single reportable segment to disclose, on an annual and interim basis, all disclosures required by the amendments in this ASU and all existing disclosures in ASC 280. • Requires disclosures of significant segment expenses included within each reportable segment’s profit or loss that are regularly provided to the CODM, an amount for other segment items by reportable segment and a description of its composition, the title and position of the CODM and an explanation of how the CODM uses the reported measure of segment profit or loss. • Clarifies that more than one measure of a segment’s profit or loss may be reported if the CODM uses them in assessing segment performance and deciding how to allocate resources, provided that at least one of the reported segment profit or loss measure is consistent with the measurement principles used in measuring the corresponding amounts in the entity’s consolidated financial statements. • Effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. • Customers will adopt this ASU and provide the newly required disclosures in the consolidated financial statements for the year ending December 31, 2024. Standard Summary of Guidance Effects on Financial Statements ASU 2023-08, Intangibles - Goodwill and Other - Crypto Assets (Subtopic 250-60) Issued December 2023 • Requires crypto assets meeting certain criteria to be subsequently measured at fair value with changes recognized in net income each reporting period. • Requires crypto assets measured at fair value to be presented separately from other intangible assets in the balance sheet and changes from the remeasurement of crypto assets separately from changes in the carrying amounts of other intangible assets in the income statement. • Requires cash receipts arising from crypto assets that are received as noncash consideration in the ordinary course of business and converted nearly immediately into cash as operating activities in the statement of cash flows. • Effective for fiscal years beginning after December 15, 2024, including interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial statements that have not yet been issued. • Customers does not expect this ASU to have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures Issued December 2023 • Requires public entities to disclose annually a tabular reconciliation of specific reconciling items, including those items exceeding five percent of the amount computed by multiplying income from continuing operations before income taxes by the statutory income tax rate, in the income tax rate reconciliation of the effective tax rate to the statutory tax rate. • Requires disclosures of income taxes paid, net of refunds received, disaggregated by federal, state and foreign taxes and by individual jurisdictions where income taxes paid is equal to or greater than five percent of total income taxes paid, net of refunds received. • Effective for fiscal years beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued. • Customers is currently evaluating the expected impact of this ASU on Customers’ consolidated financial statements. ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40) Issued November 2024 • Requires disclosure in the notes to financial statements at each interim and annual reporting period of specified information about certain costs and expenses including purchases of inventory, employee compensation, depreciation, intangible asset amortization and deprecation, depletion, and amortization recognized as part of oil-and gas-producing activities. • Requires disclosure of certain amounts already required to be disclosed under U.S. GAAP in the same disclosure as the other disaggregation requirements. • Requires disclosure of a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. • Requires disclosure of the total amount of selling expenses and, in annual reporting periods, an entity's definition of selling expenses. • Effective for fiscal years beginning after December 15, 2026. Early adoption is permitted. • Customers is currently evaluating the expected impact of this ASU on Customers’ consolidated financial statements.

EARNINGS (LOSS) PER SHARE

EARNINGS (LOSS) PER SHARE	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
EARNINGS (LOSS) PER SHARE	EARNINGS (LOSS) PER SHARE The following are the components and results of Customers’ earnings per common share calculations for the periods presented. Three Months Ended Nine Months Ended (amounts in thousands, except share and per share data) 2024 2023 2024 2023 Net income available to common shareholders $ 42,937 $ 82,953 $ 143,163 $ 177,225 Weighted-average number of common shares outstanding – basic 31,567,797 31,290,581 31,563,660 31,452,700 Share-based compensation plans 1,198,691 884,503 1,209,705 583,759 Weighted-average number of common shares – diluted 32,766,488 32,175,084 32,773,365 32,036,459 Basic earnings per common share $ 1.36 $ 2.65 $ 4.54 $ 5.63 Diluted earnings per common share 1.31 2.58 4.37 5.53 The following are securities that could potentially dilute basic earnings per common share in future periods that were not included in the computation of diluted earnings per common share because either the performance conditions for certain of the share-based compensation awards have not been met or to do so would have been anti-dilutive for the periods presented. Three Months Ended Nine Months Ended 2024 2023 2024 2023 Anti-dilutive securities: Share-based compensation awards — 319,973 — 685,951

CHANGES IN ACCUMULATED OTHER CO

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT	CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT The following tables present the changes in accumulated other comprehensive income (loss) by component for the three and nine months ended September 30, 2024 and 2023. Amounts in parentheses indicate reductions to AOCI. Unrealized Gains (Losses) Available for Sale Securities (1) Three Months Ended September 30, (amounts in thousands) 2024 2023 Balance at July 1 $ (131,358) $ (168,176) Unrealized gains (losses) arising during period, before tax 32,810 23,666 Income tax effect (8,432) (6,011) Other comprehensive income (loss) before reclassifications 24,378 17,655 Reclassification adjustments for (gains) losses included in net income, before tax — (429) Income tax effect — 109 Amounts reclassified from accumulated other comprehensive income (loss) to net income — (320) Amortization of unrealized loss on securities transferred from available for sale to held to maturity 1,209 1,379 Income tax effect (311) (350) Amortization of unrealized loss on securities transferred from available for sale to held to maturity 898 1,029 Net current-period other comprehensive income (loss) 25,276 18,364 Balance at September 30 $ (106,082) $ (149,812) Unrealized Gains (Losses) Available for Sale Securities (1) Nine Months Ended September 30, (amounts in thousands) 2024 2023 Balance at January 1 $ (136,569) $ (163,096) Unrealized gains (losses) arising during period, before tax 36,439 14,535 Income tax effect (9,351) (3,692) Other comprehensive income (loss) before reclassifications 27,088 10,843 Reclassification adjustments for (gains) losses included in net income, before tax 749 (429) Income tax effect (193) 109 Amounts reclassified from accumulated other comprehensive income (loss) to net income 556 (320) Amortization of unrealized loss on securities transferred from available for sale to held to maturity 3,821 3,700 Income tax effect (978) (939) Amortization of unrealized loss on securities transferred from available for sale to held to maturity 2,843 2,761 Net current-period other comprehensive income (loss) 30,487 13,284 Balance at September 30 $ (106,082) $ (149,812) (1) Reclassification amounts for AFS debt securities are reported as gain (loss) on sale of investment securities and amortization of unrealized losses on debt securities transferred from available-for-sale to held-to-maturity is reported within interest income on the consolidated statements of income.

INVESTMENT SECURITIES

INVESTMENT SECURITIES	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
INVESTMENT SECURITIES	INVESTMENT SECURITIES Investment securities at fair value The amortized cost, approximate fair value and allowance for credit losses of investment securities at fair value as of September 30, 2024 and December 31, 2023 are summarized as follows: September 30, 2024 (1) (amounts in thousands) Amortized Cost Allowance for Credit Losses Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale debt securities: Asset-backed securities $ 40,179 $ (307) $ — $ (2,202) $ 37,670 Agency-guaranteed residential mortgage-backed securities 216,821 — 4,357 — 221,178 Agency-guaranteed residential collateralized mortgage obligations 201,529 — 1,277 (7,933) 194,873 Agency-guaranteed commercial collateralized mortgage obligations 96,200 — 1,361 (618) 96,943 Collateralized loan obligations 315,096 — 100 (4,767) 310,429 Commercial mortgage-backed securities 78,711 — — (1,637) 77,074 Corporate notes 660,626 (4,332) 646 (61,969) 594,971 Private label collateralized mortgage obligations 879,555 — 1,573 (36,533) 844,595 Available for sale debt securities $ 2,488,717 $ (4,639) $ 9,314 $ (115,659) 2,377,733 Equity securities (2) 34,336 Total investment securities, at fair value $ 2,412,069 December 31, 2023 (1) (amounts in thousands) Amortized Cost Allowance for Credit Losses Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale debt securities: Asset-backed securities $ 97,359 $ (483) $ 15 $ (4,262) $ 92,629 Agency-guaranteed residential collateralized mortgage obligations 129,589 — — (12,681) 116,908 Collateralized loan obligations 500,109 — 1 (11,018) 489,092 Commercial mortgage-backed securities 125,885 — — (4,249) 121,636 Corporate notes 636,880 (3,469) 79 (50,456) 583,034 Private label collateralized mortgage obligations 1,034,841 — 1,201 (62,481) 973,561 Available for sale debt securities $ 2,524,663 $ (3,952) $ 1,296 $ (145,147) 2,376,860 Equity securities (2) 28,780 Total investment securities, at fair value $ 2,405,640 (1) Accrued interest on AFS debt securities totaled $19.4 million and $14.7 million at September 30, 2024 and December 31, 2023, respectively, and is included in accrued interest receivable on the consolidated balance sheet. (2) Includes perpetual preferred stock issued by domestic banks and domestic bank holding companies and equity securities issued by fintech companies, without a readily determinable fair value, and CRA-qualified mutual fund shares at September 30, 2024 and December 31, 2023. No impairments or measurement adjustments have been recorded on the equity securities without a readily determinable fair value since acquisition. Customers’ transactions with unconsolidated VIEs include sales of consumer installment loans and investments in the securities issued by the VIEs. Customers is not the primary beneficiary of the VIEs because Customers has no right to make decisions that will most significantly affect the economic performance of the VIEs. Customers’ continuing involvement with the unconsolidated VIEs is not significant. Customers’ continuing involvement is not considered to be significant where Customers only invests in securities issued by the VIE and was not involved in the design of the VIE or where Customers has transferred financial assets to the VIE for only cash consideration. Customers’ investments in the securities issued by the VIEs are classified as AFS or HTM debt securities on the consolidated balance sheets, and represent Customers’ maximum exposure to loss. Proceeds from the sale of AFS debt securities were $0.1 million and $240.8 million for the three and nine months ended September 30, 2024, respectively. Proceeds from the sale of AFS debt securities were $4.1 million for the three and nine months ended September 30, 2023. The following table presents gross realized gains and realized losses from the sale of AFS debt securities for the three and nine months ended September 30, 2024 and 2023: Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) 2024 2023 2024 2023 Gross realized gains $ — $ — $ 176 $ — Gross realized losses — (429) (925) (429) Net realized gains (losses) on sale of available for sale debt securities $ — $ (429) $ (749) $ (429) These gains (losses) were determined using the specific identification method and were reported as net gain (loss) on sale of investment securities within non-interest income on the consolidated statements of income. The following table presents AFS debt securities by stated maturity. Debt securities backed by mortgages and other assets have expected maturities that differ from contractual maturities because borrowers have the right to call or prepay and, therefore, these debt securities are classified separately with no specific maturity date: September 30, 2024 (amounts in thousands) Amortized Fair Due in one year or less $ 41,523 $ 29,940 Due after one year through five years 531,379 484,726 Due after five years through ten years 87,724 80,305 Asset-backed securities 40,179 37,670 Agency-guaranteed residential mortgage-backed securities 216,821 221,178 Agency-guaranteed residential collateralized mortgage obligations 201,529 194,873 Agency-guaranteed commercial collateralized mortgage obligations 96,200 96,943 Collateralized loan obligations 315,096 310,429 Commercial mortgage-backed securities 78,711 77,074 Private label collateralized mortgage obligations 879,555 844,595 Total available for sale debt securities $ 2,488,717 $ 2,377,733 Gross unrealized losses and fair value of Customers’ AFS debt securities for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at September 30, 2024 and December 31, 2023 were as follows: September 30, 2024 Less Than 12 Months 12 Months or More Total (amounts in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale debt securities: Asset-backed securities $ — $ — $ 30,960 $ (1,241) $ 30,960 $ (1,241) Agency-guaranteed residential collateralized mortgage obligations — — 109,456 (7,933) 109,456 (7,933) Agency-guaranteed commercial collateralized mortgage obligations 45,080 (618) — — 45,080 (618) Collateralized loan obligations 37,164 (284) 250,635 (4,483) 287,799 (4,767) Commercial mortgage-backed securities — — 77,074 (1,637) 77,074 (1,637) Corporate notes 59,408 (766) 319,371 (26,637) 378,779 (27,403) Private label collateralized mortgage obligations 175,651 (3,367) 586,700 (33,166) 762,351 (36,533) Total $ 317,303 $ (5,035) $ 1,374,196 $ (75,097) $ 1,691,499 $ (80,132) December 31, 2023 Less Than 12 Months 12 Months or More Total (amounts in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale debt securities: Asset-backed securities $ — $ — $ 64,029 $ (4,027) $ 64,029 $ (4,027) Agency-guaranteed residential collateralized mortgage obligations — — 116,908 (12,681) 116,908 (12,681) Collateralized loan obligations 29,241 (392) 438,551 (10,626) 467,792 (11,018) Commercial mortgage-backed securities — — 121,636 (4,249) 121,636 (4,249) Corporate notes 23,243 (1,147) 424,768 (33,764) 448,011 (34,911) Private label collateralized mortgage obligations 303,750 (11,243) 613,007 (51,417) 916,757 (62,660) Total $ 356,234 $ (12,782) $ 1,778,899 $ (116,764) $ 2,135,133 $ (129,546) At September 30, 2024, there were 21 AFS debt securities with unrealized losses in the less-than-twelve-months category and 92 AFS debt securities with unrealized losses in the twelve-months-or-more category. Except for two asset-backed securities and 20 corporate notes where there was a change in future estimated cash flows as further discussed below, the unrealized losses were principally due to changes in market interest rates and credit spreads that resulted in a negative impact on the respective securities’ fair value and expected to be recovered when market prices recover or at maturity. Customers does not intend to sell any of the 113 securities, and it is not more likely than not that Customers will be required to sell any of the 113 securities before recovery of the amortized cost basis. At December 31, 2023, there were 119 AFS debt securities in an unrealized loss position. Customers recorded an allowance for credit losses on two asset-backed securities and 20 corporate notes where there was a change in future estimated cash flows during the three and nine months ended September 30, 2024 and on four asset-backed securities and twelve corporate notes during the three and nine months ended September 30, 2023. A discounted cash flow approach is used to determine the amount of the allowance. The cash flows expected to be collected, after considering expected prepayments, are discounted at the original effective interest rate. The amount of the allowance is limited to the difference between the amortized cost basis of the security and its estimated fair value. The following tables present the activity in the allowance for credit losses on AFS debt securities, by major security type, for the periods presented: Three Months Ended September 30, 2024 2023 (amounts in thousands) Asset-backed securities Corporate notes Total Asset-backed securities Corporate notes Total Balance at July 1 $ 367 $ 4,972 $ 5,339 $ 1,563 $ 1,876 $ 3,439 Credit losses on securities for which credit losses were not previously recorded 24 — 24 — 564 564 Credit losses on previously impaired securities — 12 12 442 69 511 Decrease in allowance for credit losses on previously impaired securities (84) (652) (736) (250) (24) (274) Reduction due to sales — — — — (391) (391) Balance at September 30 $ 307 $ 4,332 $ 4,639 $ 1,755 $ 2,094 $ 3,849 Nine Months Ended September 30, 2024 2023 (amounts in thousands) Asset-backed securities Corporate notes Total Asset-backed securities Corporate notes Total Balance at January 1 $ 483 $ 3,469 $ 3,952 $ 578 $ — $ 578 Credit losses on securities for which credit losses were not previously recorded 24 635 659 — 2,485 2,485 Credit losses on previously impaired securities — 613 613 1,488 — 1,488 Decrease in allowance for credit losses on previously impaired securities (200) (385) (585) (311) — (311) Reduction due to sales — — — — (391) (391) Balance at September 30 $ 307 $ 4,332 $ 4,639 $ 1,755 $ 2,094 $ 3,849 At September 30, 2024 and December 31, 2023, no AFS investment securities holding of any one issuer, other than the U.S. government and its agencies, amounted to greater than 10% of shareholders’ equity. At September 30, 2024 and December 31, 2023, Customers Bank had pledged AFS investment securities aggregating $1.3 billion and $1.2 billion in fair value, respectively, as collateral primarily for immediately available liquidity from the FRB. The counterparty does not have the ability to sell or repledge these securities. Investment securities held to maturity The amortized cost, approximate fair value and allowance for credit losses of investment securities held to maturity as of September 30, 2024 and December 31, 2023 are summarized as follows: September 30, 2024 (1) (amounts in thousands) Amortized Cost Allowance for Credit Losses Net Carrying Value Gross Unrealized Gains Gross Unrealized Losses Fair Value Held to maturity debt securities: Asset-backed securities $ 538,832 $ — $ 538,832 $ 1,628 $ (184) $ 540,276 Agency-guaranteed residential mortgage-backed securities 6,920 — 6,920 — (522) 6,398 Agency-guaranteed commercial mortgage-backed securities 1,790 — 1,790 — (271) 1,519 Agency-guaranteed residential collateralized mortgage obligations 174,098 — 174,098 — (11,221) 162,877 Agency-guaranteed commercial collateralized mortgage obligations 159,050 — 159,050 — (19,426) 139,624 Private label collateralized mortgage obligations 183,747 — 183,747 789 (7,716) 176,820 Total held to maturity debt securities $ 1,064,437 $ — $ 1,064,437 $ 2,417 $ (39,340) $ 1,027,514 December 31, 2023 (1) (amounts in thousands) Amortized Cost Allowance for Credit Losses Net Carrying Value Gross Unrealized Gains Gross Unrealized Losses Fair Value Held to maturity debt securities: Asset-backed securities $ 575,990 $ — $ 575,990 $ 202 $ (2,064) $ 574,128 Agency-guaranteed residential mortgage-backed securities 7,039 — 7,039 — (649) 6,390 Agency-guaranteed commercial mortgage-backed securities 1,850 — 1,850 — (134) 1,716 Agency-guaranteed residential collateralized mortgage obligations 186,636 — 186,636 — (19,049) 167,587 Agency-guaranteed commercial collateralized mortgage obligations 146,765 — 146,765 — (23,178) 123,587 Private label collateralized mortgage obligations 184,890 — 184,890 — (11,859) 173,031 Total held to maturity debt securities $ 1,103,170 $ — $ 1,103,170 $ 202 $ (56,933) $ 1,046,439 (1) Accrued interest on HTM debt securities totaled $2.6 million and $2.7 million at September 30, 2024 and December 31, 2023, respectively, and is included in accrued interest receivable on the consolidated balance sheet. During the three and nine months ended September 30, 2024, Customers sold consumer installment loans that were classified as held for sale with a carrying value of $202.5 million, inclusive of $53.0 million of personal installment loans transferred from held for investment to held for sale, accrued interest and unamortized deferred loan origination costs, to two third party sponsored VIEs. As part of the sales, Customers recognized a loss on sale of $0.3 million, inclusive of transaction costs, in net gain (loss) on sale of loans and leases within non-interest income in the consolidated statement of income. Customers provided financing to the purchasers for a portion of the sale price in the form of $160.0 million of asset-backed securities, presented in the table above, collateralized by the sold loans. Customers will act as the servicer for the sold consumer installment loans to the VIEs, and will receive servicing fees. Customers recognized servicing assets of $2.1 million upon sale. During the nine months ended September 30, 2023, Customers sold consumer installment loans that were classified as held for sale with a carrying value of $556.7 million, inclusive of $154.0 million of other installment loans transferred from held for investment to held for sale, accrued interest and unamortized deferred loan origination costs, to two third-party sponsored VIEs. As part of these sales, Customers recognized a loss on sale of $1.2 million, inclusive of transaction costs, in net gain (loss) on sale of loans and leases within non-interest income in the consolidated statement of income. Customers provided financing to the purchasers for a portion of the sale price in the form of $436.8 million of asset-backed securities, presented in the tables above, collateralized by the sold loans. Customers acts as the servicer for the sold consumer installment loans to one of the VIEs, and receives a servicing fee. Customers recognized a servicing asset of $3.8 million upon sale. At the time of the sale, and at each subsequent reporting period, Customers is required to evaluate its involvement with the VIEs to determine if it holds a variable interest in the VIEs and, if so, if Customers is the primary beneficiary of the VIEs. If Customers is both a variable interest holder and the primary beneficiary of the VIEs, it would be required to consolidate the VIEs. As of September 30, 2024 and December 31, 2023, Customers concluded that its investments in asset-backed securities as well as the servicing fees are considered variable interests in the VIEs as there is a possibility, even if remote, that would result in Customers’ interests in the asset-backed securities or the servicing fees absorbing some of the losses of the VIEs. After concluding that Customers has one or more variable interests in the VIEs, Customers must determine if it is the primary beneficiary of the VIEs. U.S. GAAP defines the primary beneficiary as the entity that has both an economic exposure to the VIE as well as the power to direct the activities that are determined to be most significant to the economic performance of the VIE. In order to make this determination, Customers needed to first establish which activities are the most significant to the economic performance of the VIEs. Based on a review of the VIEs’ activities, Customers concluded the servicing activities, specifically those performed for significantly delinquent loans contribute most significantly to the performance of the loans and thus the VIEs. The conclusion is based upon review of the historical performance of the types of consumer installment loans sold to the VIEs, as well as consideration of which activities performed by the owner or servicer of the loans contribute most significantly to the ultimate performance of the loans. The loan servicing agreements between Customers and the VIEs for a portion of the sold consumer loans provide that the VIEs have substantive kick out rights to replace Customers as the servicer with or without cause. Accordingly, as a holder of the asset-backed securities and the servicer of the loans, Customers does not have the power to direct the servicing of significantly delinquent loans given the VIEs’ substantive kick-out rights. Customers is not the servicer for the sold consumer loans to some of the VIEs and therefore does not have the power to direct the activities that most significantly impact the economic performance of these VIEs. As the activities which most significantly affect the performance of the VIEs are not controlled by Customers, Customers has concluded that it is therefore not the primary beneficiary and does not consolidate the VIEs. Customers accounted for its investments in the asset-backed securities as HTM debt securities on the consolidated balance sheet. The following table presents HTM debt securities by stated maturity, including debt securities backed by mortgages and other assets with expected maturities that differ from contractual maturities because borrowers have the right to call or prepay and, therefore, are classified separately with no specific maturity date: September 30, 2024 (amounts in thousands) Amortized Fair Asset-backed securities $ 538,832 $ 540,276 Agency-guaranteed residential mortgage-backed securities 6,920 6,398 Agency-guaranteed commercial mortgage-backed securities 1,790 1,519 Agency-guaranteed residential collateralized mortgage obligations 174,098 162,877 Agency-guaranteed commercial collateralized mortgage obligations 159,050 139,624 Private label collateralized mortgage obligations 183,747 176,820 Total held to maturity debt securities $ 1,064,437 $ 1,027,514 Customers recorded no allowance for credit losses on investment securities classified as held to maturity at September 30, 2024 and December 31, 2023. The U.S. government agency securities represent obligations issued by a U.S. government-sponsored enterprise or other federal government agency that are explicitly or implicitly guaranteed by the U.S. federal government and therefore, assumed to have zero credit losses. The private label collateralized mortgage obligations that are highly rated with sufficient overcollateralization are estimated to have no expected credit losses. Customers recorded no allowance for its investments in the asset-backed securities. Customers considered the seniority of its beneficial interests, which include overcollateralization of these asset-backed securities in the estimate of the ACL at September 30, 2024 and December 31, 2023. The unrealized losses on HTM debt securities with no ACL were primarily due to changes in market interest rates that resulted in a negative impact on the respective securities’ fair value and are expected to be recovered when market prices recover or at maturity. Credit Quality Indicator Customers monitors the credit quality of HTM debt securities primarily through credit ratings provided by rating agencies. Investment grade debt securities are rated BBB- or higher by S&P Global Ratings, Baa3 or higher by Moody’s Investors Service or equivalent ratings by other rating agencies, and are generally considered to be of low credit risk. Except for the asset-backed securities and a private label collateralized mortgage obligation, all of the HTM debt securities held by Customers were investment grade or U.S. government agency guaranteed securities that were not rated at September 30, 2024 and December 31, 2023. The asset-backed securities and a private label collateralized mortgage obligation are not rated by rating agencies. Customers monitors the credit quality of these asset-backed securities and a private label collateralized mortgage obligation by evaluating the performance of the sold consumer installment loans and other underlying loans against the overcollateralization available for these securities. The following table presents the amortized cost of HTM debt securities based on their lowest credit rating available: September 30, 2024 (amounts in thousands) AAA AA Not Rated Total Held to maturity debt securities: Asset-backed securities $ — $ — $ 538,832 $ 538,832 Agency-guaranteed residential mortgage-backed securities — — 6,920 6,920 Agency-guaranteed commercial mortgage-backed securities — — 1,790 1,790 Agency-guaranteed residential collateralized mortgage obligations — — 174,098 174,098 Agency-guaranteed commercial collateralized mortgage obligations — — 159,050 159,050 Private label collateralized mortgage obligations 100,287 9,301 74,159 183,747 Total held to maturity debt securities $ 100,287 $ 9,301 $ 954,849 $ 1,064,437 Customers has elected to not estimate an ACL on accrued interest receivable on HTM debt securities, as it already has a policy in place to reverse or write-off accrued interest, through interest income, for debt securities in nonaccrual status in a timely manner. At September 30, 2024 and December 31, 2023, there were no HTM debt securities past due under the terms of their agreements or in nonaccrual status. At September 30, 2024 and December 31, 2023, Customers Bank had pledged HTM investment securities aggregating $412.3 million and $398.4 million in fair value, respectively, as collateral primarily for immediately available liquidity from the FRB and unused lines of credit with another financial institution. The counterparties do not have the ability to sell or repledge these securities.

LOANS HELD FOR SALE

LOANS HELD FOR SALE	9 Months Ended
	Sep. 30, 2024
Receivable, Held-for-Sale [Abstract]
LOANS HELD FOR SALE	LOANS HELD FOR SALE The composition of loans held for sale as of September 30, 2024 and December 31, 2023 was as follows: (amounts in thousands) September 30, 2024 December 31, 2023 Residential mortgage loans, at fair value $ 2,523 $ 1,215 Personal installment loans, at lower of cost or fair value 55,799 151,040 Other installment loans, at fair value 217,098 188,062 Total loans held for sale $ 275,420 $ 340,317 Total loans held for sale included NPLs of $5.3 million and $0.5 million as of September 30, 2024 and December 31, 2023, respectively. During the three and nine months ended September 30, 2024, Customers sold $202.5 million of personal and other installment loans that were classified as held for sale, inclusive of $53.0 million of personal installment loans transferred from held for investment to held for sale, accrued interest and unamortized deferred loan origination costs, to two third-party sponsored VIEs. Customers provided financing to the purchasers for a portion of the sales price in the form of $160.0 million of asset-backed securities while $40.2 million of the remaining sales proceeds were paid in cash. During the nine months ended September 30, 2023, Customers sold $556.7 million of personal and other installment loans that were classified as held for sale, inclusive of $154.0 million of other installment loans transferred from held for investment to held for sale, accrued interest and unamortized deferred loan origination costs, to two third-party sponsored VIEs. Customers provided financing to the purchasers for a portion of the sales price in the form of $436.8 million of asset backed securities while $115.1 million of the remaining sales proceeds were paid in cash. Refer to NOTE 5 – INVESTMENT SECURITIES for additional information.

LOANS AND LEASES RECEIVABLE AND

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES	LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES The following table presents loans and leases receivable as of September 30, 2024 and December 31, 2023. (amounts in thousands) September 30, 2024 December 31, 2023 Loans and leases receivable: Commercial: Commercial and industrial: Specialized lending (1) $ 5,468,507 $ 5,006,693 Other commercial and industrial (2) 1,204,426 1,279,147 Multifamily 2,115,978 2,138,622 Commercial real estate owner occupied 981,904 797,319 Commercial real estate non-owner occupied 1,326,591 1,177,650 Construction 174,509 166,393 Total commercial loans and leases receivable 11,271,915 10,565,824 Consumer: Residential real estate 500,786 484,435 Manufactured housing 34,481 38,670 Installment: Personal 453,739 555,533 Other 266,362 319,393 Total consumer loans receivable 1,255,368 1,398,031 Loans and leases receivable 12,527,283 11,963,855 Loans receivable, mortgage finance, at fair value 1,250,413 897,912 Allowance for credit losses on loans and leases (133,158) (135,311) Total loans and leases receivable, net of allowance for credit losses on loans and leases (3) $ 13,644,538 $ 12,726,456 (1) Includes direct finance and sales-type equipment leases of $254.3 million and $205.7 million at September 30, 2024 and December 31, 2023, respectively. (2) Includes PPP loans of $30.5 million and $74.7 million at September 30, 2024 and December 31, 2023, respectively. (3) Includes deferred (fees) costs and unamortized (discounts) premiums, net of $(18.1) million and $(22.7) million at September 30, 2024 and December 31, 2023, respectively. Customers’ total loans and leases receivable includes loans receivable reported at fair value based on an election made to account for these loans at fair value, and loans and leases receivable predominately reported at their outstanding unpaid principal balance, net of charge-offs, deferred costs and fees, unamortized premiums and discounts, and evaluated for impairment. The total amount of accrued interest recorded for total loans was $89.2 million and $95.0 million at September 30, 2024 and December 31, 2023, respectively, and is presented in accrued interest receivable in the consolidated balance sheet. At September 30, 2024 and December 31, 2023, there were $31.7 million and $15.8 million of individually evaluated loans that were collateral-dependent, respectively. Substantially all individually evaluated loans were collateral-dependent and consisted primarily of commercial and industrial, commercial real estate, and residential real estate loans. Collateral-dependent commercial and industrial loans were secured by accounts receivable, inventory and equipment; collateral-dependent commercial real estate loans were secured by commercial real estate assets; and residential real estate loans were secured by residential real estate assets. Loans and leases receivable The following tables summarize loans and leases receivable by loan and lease type and performance status as of September 30, 2024 and December 31, 2023: September 30, 2024 (amounts in thousands) 30-59 Days past due (1) 60-89 Days past due (1) 90 Days or more past due (2) Total past due Loans and leases not past due (3)(4) Total loans and leases (4) Commercial and industrial, including specialized lending $ 540 $ 660 $ 3,519 $ 4,719 $ 6,637,746 $ 6,642,465 Multifamily — — 11,834 11,834 2,104,144 2,115,978 Commercial real estate owner occupied — 391 8,591 8,982 972,922 981,904 Commercial real estate non-owner occupied 293 701 62 1,056 1,325,535 1,326,591 Construction — — — — 174,509 174,509 Residential real estate 3,320 5,944 3,995 13,259 487,527 500,786 Manufactured housing 623 200 2,263 3,086 31,395 34,481 Installment 5,266 7,297 6,328 18,891 701,210 720,101 Total $ 10,042 $ 15,193 $ 36,592 $ 61,827 $ 12,434,988 $ 12,496,815 December 31, 2023 (amounts in thousands) 30-59 Days past due (1) 60-89 Days past due (1) 90 Days or more past due (2) Total past due Loans and leases not past due (3)(4) Total loans and leases (4) Commercial and industrial, including specialized lending $ 1,516 $ 322 $ 4,153 $ 5,991 $ 6,205,114 $ 6,211,105 Multifamily 16,003 — — 16,003 2,122,619 2,138,622 Commercial real estate owner occupied 449 3,814 5,827 10,090 787,229 797,319 Commercial real estate non-owner occupied 16,653 — — 16,653 1,160,997 1,177,650 Construction — — — — 166,393 166,393 Residential real estate 10,504 2,255 3,764 16,523 467,912 484,435 Manufactured housing 1,152 343 2,869 4,364 34,306 38,670 Installment 9,255 7,866 7,211 24,332 850,594 874,926 Total $ 55,532 $ 14,600 $ 23,824 $ 93,956 $ 11,795,164 $ 11,889,120 (1) Includes past due loans and leases that are accruing interest because collection is considered probable. (2) Includes loans amounting to $0.4 million and $0.5 million as of September 30, 2024 and December 31, 2023, respectively, that are still accruing interest because collection is considered probable. (3) Loans and leases where next payment due is less than 30 days from the report date. The tables exclude PPP loans of $30.5 million, of which $0.5 million were 30-59 days past due and $17.1 million were 60 days or more past due as of September 30, 2024, and PPP loans of $74.7 million, of which $0.7 million were 30-59 days past due and $48.5 million were 60 days or more past due as of December 31, 2023. Claims for guarantee payments are submitted to the SBA for eligible PPP loans that are more than 60 days past due. (4) Includes PCD loans of $127.0 million and $157.2 million at September 30, 2024 and December 31, 2023, respectively. Nonaccrual Loans and Leases The following table presents the amortized cost of loans and leases held for investment on nonaccrual status. September 30, 2024 December 31, 2023 (amounts in thousands) Nonaccrual loans with no related allowance Nonaccrual loans with related allowance Total nonaccrual loans Nonaccrual loans with no related allowance Nonaccrual loans with related allowance Total nonaccrual loans Commercial and industrial, including specialized lending $ 4,598 $ 17 $ 4,615 $ 3,365 $ 1,071 $ 4,436 Multifamily 11,834 — 11,834 — — — Commercial real estate owner occupied 4,590 4,023 8,613 5,869 — 5,869 Commercial real estate non-owner occupied 763 — 763 — — — Residential real estate 7,467 530 7,997 6,685 117 6,802 Manufactured housing — 1,869 1,869 — 2,331 2,331 Installment — 6,328 6,328 — 7,211 7,211 Total $ 29,252 $ 12,767 $ 42,019 $ 15,919 $ 10,730 $ 26,649 Interest income recognized on nonaccrual loans was insignificant for the three and nine months ended September 30, 2024 and 2023. Accrued interest reversed when the loans went to nonaccrual status was insignificant for the three and nine months ended September 30, 2024 and 2023. Loans receivable, mortgage finance, at fair value Mortgage finance loans consist of commercial loans to mortgage companies. These mortgage finance lending transactions are subject to master repurchase agreements. As a result of the contractual provisions, for accounting purposes, control of the underlying mortgage loan has not transferred and the rewards and risks of the mortgage loans are not assumed by Customers. The mortgage finance loans are designated as loans held for investment and reported at fair value based on an election made to account for the loans at fair value. Pursuant to the agreements, Customers funds the pipelines for these mortgage lenders by sending payments directly to the closing agents for funded mortgage loans and receives proceeds directly from third party investors when the underlying mortgage loans are sold into the secondary market. The fair value of the mortgage finance loans is estimated as the amount of cash initially advanced to fund the mortgage, plus accrued interest and fees, as specified in the respective agreements. The interest rates on these loans are variable, and the lending transactions are short-term, with an average life under 30 days from purchase to sale. The primary goal of these lending transactions is to provide liquidity to mortgage companies. At September 30, 2024 and December 31, 2023, all of Customers’ mortgage finance loans were current in terms of payment. As these loans are reported at their fair value, they do not have an ACL and are therefore excluded from ACL-related disclosures. Allowance for credit losses on loans and leases The changes in the ACL on loans and leases by loan and lease type for the three and nine months ended September 30, 2024 and 2023 are presented in the tables below. (amounts in thousands) Commercial and industrial (1)(2) Multifamily Commercial real estate owner occupied Commercial real estate non-owner occupied Construction Residential real estate Manufactured housing Installment Total Three Months Ended Ending Balance, June 30, 2024 $ 23,721 $ 20,652 $ 8,431 $ 17,966 $ 1,856 $ 5,884 $ 4,094 $ 49,832 $ 132,436 Charge-offs (6,538) (2,167) (4) — — (19) — (12,496) (21,224) Recoveries 1,482 — — — 3 40 — 2,655 4,180 Provision (benefit) for credit losses on loans and leases 6,526 (395) 2,486 (663) (253) (68) (13) 10,146 17,766 Ending Balance, $ 25,191 $ 18,090 $ 10,913 $ 17,303 $ 1,606 $ 5,837 $ 4,081 $ 50,137 $ 133,158 Nine Months Ended Ending Balance, $ 23,503 $ 16,343 $ 9,882 $ 16,859 $ 1,482 $ 6,586 $ 4,239 $ 56,417 $ 135,311 Charge-offs (19,282) (4,073) (26) — — (38) — (43,356) (66,775) Recoveries 4,889 — — — 10 61 — 8,092 13,052 Provision (benefit) for credit losses on loans and leases 16,081 5,820 1,057 444 114 (772) (158) 28,984 51,570 Ending Balance, $ 25,191 $ 18,090 $ 10,913 $ 17,303 $ 1,606 $ 5,837 $ 4,081 $ 50,137 $ 133,158 (amounts in thousands) Commercial and industrial (1)(2) Multifamily Commercial real estate owner occupied Commercial real estate non-owner occupied Construction Residential real estate Manufactured housing Installment Total Three Months Ended Ending Balance, June 30, 2023 $ 29,092 $ 15,400 $ 10,215 $ 13,495 $ 2,639 $ 6,846 $ 4,338 $ 57,631 $ 139,656 Charge-offs (9,008) (1,999) (39) — — (42) — (18,932) (30,020) Recoveries 6,034 — — — — 29 — 6,459 12,522 Provision (benefit) for credit losses on loans and leases (1,132) 2,469 187 2,324 491 (31) (258) 13,005 17,055 Ending Balance, $ 24,986 $ 15,870 $ 10,363 $ 15,819 $ 3,130 $ 6,802 $ 4,080 $ 58,163 $ 139,213 Nine Months Ended Ending Balance, $ 17,582 $ 14,541 $ 6,454 $ 11,219 $ 1,913 $ 6,094 $ 4,430 $ 68,691 $ 130,924 Allowance for credit losses on FDIC PCD loans, net of charge-offs (3) 2,576 — — — — — — — 2,576 Charge-offs (9,600) (3,447) (39) (4,527) — (69) — (52,031) (69,713) Recoveries 6,439 — 34 27 116 34 — 11,350 18,000 Provision (benefit) for credit losses on loans and leases 7,989 4,776 3,914 9,100 1,101 743 (350) 30,153 57,426 Ending Balance, $ 24,986 $ 15,870 $ 10,363 $ 15,819 $ 3,130 $ 6,802 $ 4,080 $ 58,163 $ 139,213 (1) Includes specialized lending. (2) PPP loans include an embedded credit enhancement from the SBA, which guarantees 100% of the principal and interest owed by the borrower provided that the SBA’s eligibility criteria are met. As a result, the eligible PPP loans do not have an ACL. (3) Represents $8.7 million of allowance for credit losses on PCD loans recognized upon acquisition of a venture banking loan portfolio (included within specialized lending) from the FDIC on June 15, 2023, net of $6.2 million of charge-offs for certain of these PCD loans upon acquisition. At September 30, 2024, the ACL on loans and leases was $133.2 million, a decrease of $2.2 million from the December 31, 2023 balance of $135.3 million. The decrease in ACL for the three and nine months ended September 30, 2024 was primarily attributable to slight improvements in macroeconomic forecasts and a decrease in consumer installment loan balances held for investment. Loan Modifications for Borrowers Experiencing Financial Difficulty A borrower is considered to be experiencing financial difficulty when there is a significant doubt about the borrower’s ability to make the required principal and interest payments on the loan or to get an equivalent financing from another creditor at a market rate for a similar loan. When borrowers are experiencing financial difficulty, Customers may make certain loan modifications as part of loss mitigation strategies to maximize expected payment. To be classified as a modification made to a borrower experiencing financial difficulty, the modification must be in the form of an interest rate reduction, principal forgiveness, or an other-than-insignificant payment delay (payment deferral), term extension, or combinations thereof. Customers will generally try other forms of relief before principal forgiveness. Any contractual reduction in the amount of principal due without receiving payment or assets is considered forgiveness. For the purpose of this disclosure, Customers considers any contractual change in interest rate that results in a reduction in interest rate relative to the current stated interest rate as an interest rate reduction. Generally, Customers considers any delay in payment of greater than 90 days in the last 12 months to be significant. Term extensions extend the original contractual maturity of the loan. For the purpose of this disclosure, modification of contingent payment features or covenants that would have accelerated payment are not considered term extensions. The following table presents the amortized cost of loans that were modified to borrowers experiencing financial difficulty for the three and nine months ended September 30, 2024 and 2023, disaggregated by class of financing receivable and type of modification granted. Three Months Ended September 30, 2024 (dollars in thousands) Interest Rate Reduction Term Extension Payment Deferral Debt Forgiveness Interest Rate Reduction and Term Extension Total Percentage of Total by Financing Class Commercial and industrial, including specialized lending $ — $ — $ 4,800 $ — $ — $ 4,800 0.07 % Manufactured housing — 18 — — 79 97 0.28 % Personal installment 266 1,770 55 37 — 2,128 0.47 % Total $ 266 $ 1,788 $ 4,855 $ 37 $ 79 $ 7,025 Three Months Ended September 30, 2023 (dollars in thousands) Term Extension Payment Deferral Debt Forgiveness Interest Rate Reduction and Term Extension Total Percentage of Total by Financing Class Manufactured housing $ — $ — $ — $ 99 $ 99 0.25 % Personal installment 3,863 210 28 — 4,101 0.42 % Total $ 3,863 $ 210 $ 28 $ 99 $ 4,200 Nine Months Ended September 30, 2024 (dollars in thousands) Interest Rate Reduction Term Extension Payment Deferral Debt Forgiveness Interest Rate Reduction and Term Extension Total Percentage of Total by Financing Class Commercial and industrial, including specialized lending $ — $ 2,000 $ 8,049 $ — $ — $ 10,049 0.15 % Multifamily — — 10,713 — — 10,713 0.51 % Residential real estate — — 52 — — 52 0.01 % Manufactured housing — 96 — — 128 224 0.65 % Personal installment 266 4,970 178 93 — 5,507 1.21 % Total $ 266 $ 7,066 $ 18,992 $ 93 $ 128 $ 26,545 Nine Months Ended September 30, 2023 (dollars in thousands) Term Extension Payment Deferral Debt Forgiveness Interest Rate Reduction and Term Extension Total Percentage of Total by Financing Class Commercial real estate owner occupied $ 169 $ — $ — $ — $ 169 0.02 % Manufactured housing 6 — — 113 119 0.30 % Personal installment 10,910 442 222 — 11,574 1.20 % Total $ 11,085 $ 442 $ 222 $ 113 $ 11,862 As of September 30, 2024, there were no commitments to lend additional funds to debtors experiencing financial difficulty whose loans have been modified during the three and nine months ended September 30, 2024. The following table summarizes the impacts of loan modifications made to borrowers experiencing financial difficulty for the three and nine months ended September 30, 2024 and 2023. Three Months Ended September 30, 2024 Three Months Ended September 30, 2023 Weighted Average Weighted Average (dollars in thousands) Interest Rate Reduction (%) Term Extension Payment Deferral Debt Forgiven Interest Rate Reduction (%) Term Extension Payment Deferral Debt Forgiven Commercial and industrial, including specialized lending —% 0 10 $ — —% 0 0 $ — Manufactured housing 3.8 115 0 — 4.4 31 0 — Personal installment 13.6 5 7 12 — 6 6 20 Nine Months Ended September 30, 2024 Nine Months Ended September 30, 2023 Weighted Average Weighted Average (dollars in thousands) Interest Rate Reduction (%) Term Extension Payment Deferral Debt Forgiven Interest Rate Reduction (%) Term Extension Payment Deferral Debt Forgiven Commercial and industrial, including specialized lending — % 1 8 $ — — % 0 0 $ — Multifamily — 0 5 — — 0 0 — Commercial real estate owner occupied — 0 0 — — 4 0 — Residential real estate — 0 5 — — 0 0 — Manufactured housing 4.0 78 0 — 4.3 30 0 — Personal installment 13.6 5 7 153 — 6 6 183 The performance of loans made to borrowers experiencing financial difficulty in which modifications were made is closely monitored to understand the effectiveness of modification efforts. Loans are considered to be in payment default at 90 days or more past due. The following table presents an aging analysis of loan modifications made to borrowers experiencing financial difficulty in the twelve months ended September 30, 2024 and the nine months ended ended September 30, 2023. September 30, 2024 (dollars in thousands) 30-59 Days past due 60-89 Days past due 90 Days or more past due Current Total Commercial and industrial, including specialized lending $ — $ — $ 230 $ 22,395 $ 22,625 Multifamily — — — 10,713 10,713 Residential real estate — — — 52 52 Manufactured housing 19 24 37 269 349 Personal installment 436 331 665 7,393 8,825 Total $ 455 $ 355 $ 932 $ 40,822 $ 42,564 September 30, 2023 (1) (dollars in thousands) 30-59 Days past due 60-89 Days past due 90 Days or more past due Current Total Commercial real estate owner occupied $ — $ — $ 169 $ — $ 169 Manufactured housing — — — 119 119 Personal installment 837 565 354 9,820 11,576 Total $ 837 $ 565 $ 523 $ 9,939 $ 11,864 (1) Customers adopted ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures (“ASU 2022-02”) effective January 1, 2023, therefore, the September 30, 2023 balances only include loans since ASU 2022-02 became effective. The loans to borrowers experiencing financial difficulty that were modified during the twelve months ended September 30, 2024 that subsequently defaulted were not material. During the nine months ended September 30, 2023, the loans that were made to borrowers experiencing financial difficulty that subsequently defaulted were not material. Customers’ ACL is influenced by loan level characteristics that inform the assessed propensity to default. As such, the provision for credit losses is impacted by changes in such loan level characteristics, such as payment performance. Loans made to borrowers experiencing financial difficulty can be classified as either accrual or nonaccrual. Credit Quality Indicators The ACL represents management’s estimate of expected losses in Customers’ loans and leases receivable portfolio, excluding mortgage finance loans reported at fair value pursuant to a fair value option election and PPP loans receivable. Commercial and industrial including specialized lending, multifamily, owner occupied commercial real estate, non-owner occupied commercial real estate, and construction loans are rated based on an internally assigned risk rating system which is assigned at the time of loan origination and reviewed on a periodic, or on an “as needed” basis. Residential real estate, manufactured housing and installment loans are evaluated based on the payment activity of the loan. To facilitate the monitoring of credit quality within the commercial and industrial including specialized lending, multifamily, owner occupied commercial real estate, non-owner occupied commercial real estate, and construction loan portfolios, and as an input in the ACL lifetime loss rate model for the commercial and industrial loan portfolio, the Bank utilizes the following categories of risk ratings: pass/satisfactory (includes risk rating 1 through 6), special mention, substandard, doubtful, and loss. The risk rating categories, which are derived from standard regulatory rating definitions, are assigned upon initial approval of credit to borrowers and updated periodically thereafter. Pass ratings, which are assigned to those borrowers who do not have identified potential or well-defined weaknesses and for whom there is a high likelihood of orderly repayment, are updated periodically based on the size and credit characteristics of the borrower. All other categories are updated on a quarterly basis during the month preceding the end of the calendar quarter. While assigning risk ratings involves judgment, the risk-rating process allows management to identify riskier credits in a timely manner and allocate the appropriate resources to manage those loans and leases. The 2023 Form 10-K describes Customers Bancorp’s risk rating grades. Risk ratings are not established for certain consumer loans, including residential real estate, home equity, manufactured housing, and installment loans, mainly because these portfolios consist of a larger number of homogeneous loans with smaller balances. Instead, these portfolios are evaluated for risk mainly based upon aggregate payment history through the monitoring of delinquency levels and trends and are classified as performing and non-performing. PPP loans of $30.5 million and $74.7 million at September 30, 2024 and December 31, 2023, respectively, are excluded in the tables below as these loans are fully guaranteed by the SBA, provided that the eligibility criteria are met. The following tables present the credit ratings of loans and leases receivable and current period gross write-offs as of September 30, 2024 and December 31, 2023. Term Loans Amortized Cost Basis by Origination Year as of (amounts in thousands) 2024 2023 2022 2021 2020 Prior Revolving loans amortized cost basis Revolving loans converted to term Total Commercial and industrial loans and leases, including specialized lending: Pass $ 1,288,705 $ 790,316 $ 1,591,974 $ 328,477 $ 114,778 $ 32,650 $ 1,952,229 $ 392,242 $ 6,491,371 Special mention 12,755 250 30,397 3,926 — 67 29,747 4,417 81,559 Substandard — 958 7,832 12,076 3,576 37,379 4,076 3,638 69,535 Doubtful — — — — — — — — — Total commercial and industrial loans and leases $ 1,301,460 $ 791,524 $ 1,630,203 $ 344,479 $ 118,354 $ 70,096 $ 1,986,052 $ 400,297 $ 6,642,465 Commercial and industrial loans and leases charge-offs: Three Months Ended September 30, 2024 (1) $ 94 $ — $ 13 $ 52 $ 742 $ 5,637 $ — $ — $ 6,538 Nine Months Ended September 30, 2024 (1) 312 702 5,685 4,147 2,429 6,007 — — 19,282 Multifamily loans: Pass $ 76,380 $ 823 $ 1,202,986 $ 301,976 $ 125,476 $ 303,992 $ — $ — $ 2,011,633 Special mention — — 6,770 — — 42,662 — — 49,432 Substandard — — — — — 54,913 — — 54,913 Doubtful — — — — — — — — — Total multifamily loans $ 76,380 $ 823 $ 1,209,756 $ 301,976 $ 125,476 $ 401,567 $ — $ — $ 2,115,978 Multifamily loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ 2,167 $ — $ 2,167 Nine Months Ended September 30, 2024 — — — — — 4,073 — — 4,073 Commercial real estate owner occupied loans: Pass $ 218,625 $ 64,100 $ 238,103 $ 197,298 $ 52,820 $ 147,520 $ 7,640 $ 74 $ 926,180 Special mention — — — — — 10,924 — 11,197 22,121 Substandard — 2,944 703 15,310 — 14,646 — — 33,603 Doubtful — — — — — — — — — Total commercial real estate owner occupied loans $ 218,625 $ 67,044 $ 238,806 $ 212,608 $ 52,820 $ 173,090 $ 7,640 $ 11,271 $ 981,904 Commercial real estate owner occupied loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ 4 $ — $ — $ 4 Nine Months Ended September 30, 2024 — — — — — 26 — — 26 Commercial real estate non-owner occupied loans: Pass $ 100,123 $ 30,427 $ 413,675 $ 97,555 $ 182,789 $ 424,192 $ 214 $ — $ 1,248,975 Special mention — 12,000 4,308 — — 438 — — 16,746 Substandard — — — — 701 60,169 — — 60,870 Doubtful — — — — — — — — — Total commercial real estate non-owner occupied loans $ 100,123 $ 42,427 $ 417,983 $ 97,555 $ 183,490 $ 484,799 $ 214 $ — $ 1,326,591 Commercial real estate non-owner occupied loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2024 — — — — — — — — — Construction loans: Pass $ 9,235 $ 18,651 $ 133,969 $ — $ — $ 4,486 $ — $ — $ 166,341 Special mention — 8,168 — — — — — — 8,168 Substandard — — — — — — — — — Doubtful — — — — — — — — — Total construction loans $ 9,235 $ 26,819 $ 133,969 $ — $ — $ 4,486 $ — $ — $ 174,509 Term Loans Amortized Cost Basis by Origination Year as of (amounts in thousands) 2024 2023 2022 2021 2020 Prior Revolving loans amortized cost basis Revolving loans converted to term Total Construction loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2024 — — — — — — — — — Total commercial loans and leases receivable $ 1,705,823 $ 928,637 $ 3,630,717 $ 956,618 $ 480,140 $ 1,134,038 $ 1,993,906 $ 411,568 $ 11,241,447 Total commercial loans and leases receivable charge-offs: Three Months Ended September 30, 2024 $ 94 $ — $ 13 $ 52 $ 742 $ 7,808 $ — $ — $ 8,709 Nine Months Ended September 30, 2024 312 702 5,685 4,147 2,429 10,106 — — 23,381 Residential real estate loans: Performing $ 41,200 $ 21,946 $ 165,563 $ 124,381 $ 5,957 $ 80,700 $ 53,214 $ — $ 492,961 Non-performing 141 280 1,394 1,695 233 4,082 — — 7,825 Total residential real estate loans $ 41,341 $ 22,226 $ 166,957 $ 126,076 $ 6,190 $ 84,782 $ 53,214 $ — $ 500,786 Residential real estate loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ 19 $ — $ — $ 19 Nine Months Ended September 30, 2024 — — — — — 38 — — 38 Manufactured housing loans: Performing $ — $ — $ — $ — $ — $ 32,969 $ — $ — $ 32,969 Non-performing — — — — — 1,512 — — 1,512 Total manufactured housing loans $ — $ — $ — $ — $ — $ 34,481 $ — $ — $ 34,481 Manufactured housing loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2024 — — — — — — — — — Installment loans: Performing $ 81,762 $ 174,647 $ 240,433 $ 109,349 $ 35,925 $ 28,770 $ 43,757 $ 8 $ 714,651 Non-performing 39 1,880 1,552 1,119 308 442 110 — 5,450 Total installment loans $ 81,801 $ 176,527 $ 241,985 $ 110,468 $ 36,233 $ 29,212 $ 43,867 $ 8 $ 720,101 Installment loans charge-offs: Three Months Ended September 30, 2024 $ 425 $ 2,432 $ 5,219 $ 3,311 $ 553 $ 556 $ — $ — $ 12,496 Nine Months Ended September 30, 2024 2,307 5,837 17,450 12,099 2,286 3,377 — — 43,356 Total consumer loans $ 123,142 $ 198,753 $ 408,942 $ 236,544 $ 42,423 $ 148,475 $ 97,081 $ 8 $ 1,255,368 Total consumer loans charge-offs: Three Months Ended September 30, 2024 $ 425 $ 2,432 $ 5,219 $ 3,311 $ 553 $ 575 $ — $ — $ 12,515 Nine Months Ended September 30, 2024 2,307 5,837 17,450 12,099 2,286 3,415 — — 43,394 Loans and leases receivable $ 1,828,965 $ 1,127,390 $ 4,039,659 $ 1,193,162 $ 522,563 $ 1,282,513 $ 2,090,987 $ 411,576 $ 12,496,815 Loans and leases receivable charge-offs: Three Months Ended September 30, 2024 $ 519 $ 2,432 $ 5,232 $ 3,363 $ 1,295 $ 8,383 $ — $ — $ 21,224 Nine Months Ended September 30, 2024 $ 2,619 $ 6,539 $ 23,135 $ 16,246 $ 4,715 $ 13,521 $ — $ — $ 66,775 (1) Charge-offs for the three and nine months ended September 30, 2024 included $0.8 million and $5.0 million, respectively, of commercial and industrial loans originated under the PPP that were subsequently determined to be ineligible for SBA forgiveness and guarantee and were ultimately deemed uncollectible. Term Loans Amortized Cost Basis by Origination Year as of (amounts in thousands) 2023 2022 2021 2020 2019 Prior Revolving loans amortized cost basis Revolving loans converted to term Total Commercial and industrial loans and leases, including specialized lending: Pass $ 1,184,923 $ 1,909,592 $ 483,039 $ 170,384 $ 59,213 $ 63,480 $ 1,722,559 $ 384,947 $ 5,978,137 Special mention 18,000 3,377 5,127 1,986 — 595 7,916 2,903 39,904 Substandard 14,738 39,258 61,533 26,660 4,803 42,062 4,010 — 193,064 Doubtful — — — — — — — — — Total commercial and industrial loans and leases $ 1,217,661 $ 1,952,227 $ 549,699 $ 199,030 $ 64,016 $ 106,137 $ 1,734,485 $ 387,850 $ 6,211,105 Commercial and industrial loans and leases charge-offs: For the Year Ended December 31, 2023 (1)(2) $ 1,483 $ 381 $ 3,169 $ 10,348 $ 24 $ 1,510 $ — $ — $ 16,915 Multifamily loans: Pass $ 845 $ 1,229,198 $ 371,016 $ 127,493 $ 43,046 $ 253,806 $ — $ — $ 2,025,404 Special mention — — — — 6,468 67,035 — — 73,503 Substandard — — — — — 39,715 — — 39,715 Doubtful — — — — — — — — — Total multifamily loans $ 845 $ 1,229,198 $ 371,016 $ 127,493 $ 49,514 $ 360,556 $ — $ — $ 2,138,622 Multifamily loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ 3,574 $ — $ — $ 3,574 Commercial real estate owner occupied loans: Pass $ 41,011 $ 254,878 $ 180,289 $ 77,821 $ 44,382 $ 120,248 $ — $ 11,318 $ 729,947 Special mention — — 15,432 — 35,691 47 — — 51,170 Substandard — — — — 347 15,855 — — 16,202 Doubtful — — — — — — — — — Total commercial real estate owner occupied loans $ 41,011 $ 254,878 $ 195,721 $ 77,821 $ 80,420 $ 136,150 $ — $ 11,318 $ 797,319 Commercial real estate owner occupied loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ 39 $ — $ — $ 39 Commercial real estate non-owner occupied loans: Pass $ 12,906 $ 325,881 $ 109,521 $ 152,227 $ 88,586 $ 367,996 $ — $ — $ 1,057,117 Special mention — — — 20,702 — 9,148 — — 29,850 Substandard — 10,910 — — 8,113 71,660 — — 90,683 Doubtful — — — — — — — — — Total commercial real estate non-owner occupied loans $ 12,906 $ 336,791 $ 109,521 $ 172,929 $ 96,699 $ 448,804 $ — $ — $ 1,177,650 Commercial real estate non-owner occupied loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ 4,527 $ — $ — $ 4,527 Construction loans: Pass $ 17,594 $ 138,797 $ 2,567 $ — $ — $ 4,580 $ — $ 1,100 $ 164,638 Special mention 1,755 — — — — — — — 1,755 Substandard — — — — — — — — — Doubtful — — — — — — — — — Total construction loans $ 19,349 $ 138,797 $ 2,567 $ — $ — $ 4,580 $ — $ 1,100 $ 166,393 Construction loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ — $ — $ — $ — Total commercial loans and leases receivable $ 1,291,772 $ 3,911,891 $ 1,228,524 $ 577,273 $ 290,649 $ 1,056,227 $ 1,734,485 $ 400,268 $ 10,491,089 Term Loans Amortized Cost Basis by Origination Year as of (amounts in thousands) 2023 2022 2021 2020 2019 Prior Revolving loans amortized cost basis Revolving loans converted to term Total Total commercial loans and leases receivable charge-offs: For the Year Ended December 31, 2023 $ 1,483 $ 381 $ 3,169 $ 10,348 $ 24 $ 9,650 $ — $ — $ 25,055 Residential real estate loans: Performing $ 22,613 $ 173,424 $ 131,621 $ 6,458 $ 15,508 $ 71,433 $ 56,844 $ — $ 477,901 Non-performing — 350 1,236 229 545 3,993 181 — 6,534 Total residential real estate loans $ 22,613 $ 173,774 $ 132,857 $ 6,687 $ 16,053 $ 75,426 $ 57,025 $ — $ 484,435 Residential real estate loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ 69 $ — $ — $ 69 Manufactured housing loans: Performing $ — $ — $ — $ — $ 98 $ 36,464 $ — $ — $ 36,562 Non-performing — — — — — 2,108 — — 2,108 Total manufactured housing loans $ — $ — $ — $ — $ 98 $ 38,572 $ — $ — $ 38,670 Manufactured housing loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ — $ — $ — $ — Installment loans: Performing $ 253,958 $ 307,566 $ 158,381 $ 50,354 $ 39,953 $ 3,448 $ 51,480 $ — $ 865,140 Non-performing 2,634 4,102 1,751 546 477 86 190 — 9,786 Total installment loans $ 256,592 $ 311,668 $ 160,132 $ 50,900 $ 40,430 $ 3,534 $ 51,670 $ — $ 874,926 Installment loans charge-offs: For the Year Ended December 31, 2023 $ 7,728 $ 24,605 $ 23,984 $ 5,590 $ 6,797 $ 1,238 $ — $ — $ 69,942 Total consumer loans $ 279,205 $ 485,442 $ 292,989 $ 57,587 $ 56,581 $ 117,532 $ 108,695 $ — $ 1,398,031 Total consumer loans charge-offs: For the Year Ended December 31, 2023 $ 7,728 $ 24,605 $ 23,984 $ 5,590 $ 6,797 $ 1,307 $ — $ — $ 70,011 Loans and leases receivable $ 1,570,977 $ 4,397,333 $ 1,521,513 $ 634,860 $ 347,230 $ 1,173,759 $ 1,843,180 $ 400,268 $ 11,889,120 Loans and leases receivable charge-offs: For the Year Ended December 31, 2023 $ 9,211 $ 24,986 $ 27,153 $ 15,938 $ 6,821 $ 10,957 $ — $ — $ 95,066 (1) Excludes $6.2 million of charge-offs for certain PCD loans against $8.7 million of allowance for credit losses on PCD loans recognized upon acquisition of a venture banking loan portfolio (included

LEASES

LEASES	9 Months Ended
	Sep. 30, 2024
Leases [Abstract]
LEASES	LEASES Lessee Customers has operating leases for its branches, certain LPOs, and administrative offices, with remaining lease terms ranging between six months and eleven years. These operating leases comprise substantially all of Customers’ obligations in which Customers is the lessee. These lease agreements typically consist of initial lease terms ranging between one As most of Customers’ operating leases do not provide an implicit rate, Customers utilized its incremental borrowing rate when determining the present value of lease payments. The following table summarizes operating lease ROU assets and operating lease liabilities and their corresponding balance sheet location: (amounts in thousands) Classification September 30, 2024 December 31, 2023 ASSETS Operating lease ROU assets Other assets $ 35,901 $ 15,644 LIABILITIES Operating lease liabilities Other liabilities $ 37,993 $ 18,048 The following table summarizes operating lease cost and its corresponding income statement location for the periods presented: Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) Classification 2024 2023 2024 2023 Operating lease cost (1) Occupancy expenses $ 1,792 $ 1,260 $ 4,277 $ 3,775 (1) There were no variable lease costs for the three and nine months ended September 30, 2024 and 2023, and sublease income for operating leases was immaterial. Maturities of non-cancelable operating lease liabilities were as follows at September 30, 2024: (amounts in thousands) September 30, 2024 2024 $ 1,507 2025 5,668 2026 6,328 2027 5,833 2028 5,207 Thereafter 21,187 Total minimum payments 45,730 Less: interest 7,737 Present value of lease liabilities $ 37,993 Customers does not have leases where it is involved with the construction or design of an underlying asset. Cash paid pursuant to the operating lease liabilities was $1.3 million and $3.8 million for the three and nine months ended September 30, 2024, respectively. Cash paid pursuant to the operating lease liabilities was $1.3 million and $4.4 million for the three and nine months ended September 30, 2023, respectively. These payments were reported as cash flows used in operating activities in the statement of cash flows. The following table summarizes the weighted average remaining lease term and discount rate for Customers’ operating leases at September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Weighted average remaining lease term (years) Operating leases 8.6 years 5.6 years Weighted average discount rate Operating leases 4.08 % 3.28 % Equipment Lessor Customers’ commercial equipment financing group goes to market through the following origination platforms: vendors, intermediaries, direct and capital markets. The commercial equipment financing group is primarily focused on serving the following industries: transportation, construction (includes crane and utility), marine, franchise, general manufacturing (includes machine tool), helicopter/fixed wing, solar, packaging, plastics and food processing. Lease terms typically range from 24 months to 120 months. The commercial equipment financing group offers the following products: Loans, Capital Lease, PUT, TRAC, Split-TRAC, and FMV. Customers’ commercial equipment financing group leases equipments under direct finance, sales-type or operating leases. The estimated residual values for direct finance, sales-type and operating leases are established by utilizing internally developed analyses, external studies, and/or third-party appraisals to establish a residual position. For the direct finance leases, only Customers’ Split-TRAC leases have residual risk and the unguaranteed portions are typically nominal. Expected credit losses on direct financing and sales-type leases and the related estimated residual values are included in the ACL on loans and leases. Direct finance and sales-type equipment leases, are included in commercial and industrial loans and leases receivable and are recorded at the discounted amounts of lease payments receivable and the estimated residual value of the leased assets. Interest income on direct finance and sales-type leases is recognized over the term of the leases using the effective interest method. Any difference between the lower of the fair value of the underlying leased asset or the sum of the lease receivables and the carrying amount of the underlying leased asset would result to a gain or loss at the lease commencement date. Customers’ direct finance and sales-type lease activity primarily relates to leasing of new equipments. During the three and nine months ended September 30, 2024, Customers’ commercial equipment financing group executed leases of commercial clean vehicles that qualified for investment tax credits. Customers accounted for these leases as sales-type leases and were included in loans and leases receivable on the balance sheet. Customers recognized a loss on sales-type leases of $14.3 million within net gain (loss) on sale of loans and leases and the corresponding investment tax credits within income tax expense (benefit) in the statements of income for the three and nine months ended September 30, 2024. Customers recognized interest income from its sales-type and direct financing leases of $9.9 million and $7.1 million for the three months ended September 30, 2024 and 2023. Customers recognized interest income from its sales-type and direct financing leases of $27.0 million and $21.4 million for the nine months ended September 30, 2024 and 2023. Leased assets under operating leases are reported at amortized cost net of accumulated depreciation and any impairment charges, and are presented in other assets. The depreciation expense of the leased assets is recognized on a straight-line basis over the contractual term of the leases up to the expected residual value. The expected residual value and, accordingly, the monthly depreciation expense, may change throughout the term of the lease. Operating lease rental income for leased assets is recognized in commercial lease income on a straight-line basis over the lease term. Customers periodically reviews its operating leased assets for impairment. An impairment loss is recognized if the carrying amount of the operating leased asset exceeds its fair value and is not recoverable. The carrying amount of operating leased assets is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the lease payments and the estimated residual value upon the eventual disposition of the equipment. The following table summarizes lease receivables and investment in operating leases and their corresponding balance sheet location at September 30, 2024 and December 31, 2023: (amounts in thousands) Classification September 30, 2024 December 31, 2023 ASSETS Direct financing and sales-type leases Lease receivables Loans and leases receivable $ 243,859 $ 190,559 Guaranteed residual assets Loans and leases receivable 21,878 15,783 Unguaranteed residual assets Loans and leases receivable 10,467 10,010 Deferred initial direct costs Loans and leases receivable 1,348 1,213 Unearned income Loans and leases receivable (23,208) (11,891) Net investment in direct financing and sales-type leases $ 254,344 $ 205,674 Operating leases Investment in operating leases Other assets $ 287,575 $ 282,208 Accumulated depreciation Other assets (88,636) (77,672) Deferred initial direct costs Other assets 957 1,192 Net investment in operating leases 199,896 205,728 Total lease assets $ 454,240 $ 411,402 Maturities of operating and direct financing and sales-type lease receivables were as follows at September 30, 2024: (amounts in thousands) Operating leases Direct financing and sales-type leases 2024 $ 11,314 $ 19,302 2025 41,979 63,374 2026 47,551 56,173 2027 34,377 47,608 2028 57,173 29,881 Thereafter 35,968 27,521 Total minimum payments $ 228,362 243,859 Less: interest 23,208 Present value of lease receivables $ 220,651
LEASES	LEASES Lessee Customers has operating leases for its branches, certain LPOs, and administrative offices, with remaining lease terms ranging between six months and eleven years. These operating leases comprise substantially all of Customers’ obligations in which Customers is the lessee. These lease agreements typically consist of initial lease terms ranging between one As most of Customers’ operating leases do not provide an implicit rate, Customers utilized its incremental borrowing rate when determining the present value of lease payments. The following table summarizes operating lease ROU assets and operating lease liabilities and their corresponding balance sheet location: (amounts in thousands) Classification September 30, 2024 December 31, 2023 ASSETS Operating lease ROU assets Other assets $ 35,901 $ 15,644 LIABILITIES Operating lease liabilities Other liabilities $ 37,993 $ 18,048 The following table summarizes operating lease cost and its corresponding income statement location for the periods presented: Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) Classification 2024 2023 2024 2023 Operating lease cost (1) Occupancy expenses $ 1,792 $ 1,260 $ 4,277 $ 3,775 (1) There were no variable lease costs for the three and nine months ended September 30, 2024 and 2023, and sublease income for operating leases was immaterial. Maturities of non-cancelable operating lease liabilities were as follows at September 30, 2024: (amounts in thousands) September 30, 2024 2024 $ 1,507 2025 5,668 2026 6,328 2027 5,833 2028 5,207 Thereafter 21,187 Total minimum payments 45,730 Less: interest 7,737 Present value of lease liabilities $ 37,993 Customers does not have leases where it is involved with the construction or design of an underlying asset. Cash paid pursuant to the operating lease liabilities was $1.3 million and $3.8 million for the three and nine months ended September 30, 2024, respectively. Cash paid pursuant to the operating lease liabilities was $1.3 million and $4.4 million for the three and nine months ended September 30, 2023, respectively. These payments were reported as cash flows used in operating activities in the statement of cash flows. The following table summarizes the weighted average remaining lease term and discount rate for Customers’ operating leases at September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Weighted average remaining lease term (years) Operating leases 8.6 years 5.6 years Weighted average discount rate Operating leases 4.08 % 3.28 % Equipment Lessor Customers’ commercial equipment financing group goes to market through the following origination platforms: vendors, intermediaries, direct and capital markets. The commercial equipment financing group is primarily focused on serving the following industries: transportation, construction (includes crane and utility), marine, franchise, general manufacturing (includes machine tool), helicopter/fixed wing, solar, packaging, plastics and food processing. Lease terms typically range from 24 months to 120 months. The commercial equipment financing group offers the following products: Loans, Capital Lease, PUT, TRAC, Split-TRAC, and FMV. Customers’ commercial equipment financing group leases equipments under direct finance, sales-type or operating leases. The estimated residual values for direct finance, sales-type and operating leases are established by utilizing internally developed analyses, external studies, and/or third-party appraisals to establish a residual position. For the direct finance leases, only Customers’ Split-TRAC leases have residual risk and the unguaranteed portions are typically nominal. Expected credit losses on direct financing and sales-type leases and the related estimated residual values are included in the ACL on loans and leases. Direct finance and sales-type equipment leases, are included in commercial and industrial loans and leases receivable and are recorded at the discounted amounts of lease payments receivable and the estimated residual value of the leased assets. Interest income on direct finance and sales-type leases is recognized over the term of the leases using the effective interest method. Any difference between the lower of the fair value of the underlying leased asset or the sum of the lease receivables and the carrying amount of the underlying leased asset would result to a gain or loss at the lease commencement date. Customers’ direct finance and sales-type lease activity primarily relates to leasing of new equipments. During the three and nine months ended September 30, 2024, Customers’ commercial equipment financing group executed leases of commercial clean vehicles that qualified for investment tax credits. Customers accounted for these leases as sales-type leases and were included in loans and leases receivable on the balance sheet. Customers recognized a loss on sales-type leases of $14.3 million within net gain (loss) on sale of loans and leases and the corresponding investment tax credits within income tax expense (benefit) in the statements of income for the three and nine months ended September 30, 2024. Customers recognized interest income from its sales-type and direct financing leases of $9.9 million and $7.1 million for the three months ended September 30, 2024 and 2023. Customers recognized interest income from its sales-type and direct financing leases of $27.0 million and $21.4 million for the nine months ended September 30, 2024 and 2023. Leased assets under operating leases are reported at amortized cost net of accumulated depreciation and any impairment charges, and are presented in other assets. The depreciation expense of the leased assets is recognized on a straight-line basis over the contractual term of the leases up to the expected residual value. The expected residual value and, accordingly, the monthly depreciation expense, may change throughout the term of the lease. Operating lease rental income for leased assets is recognized in commercial lease income on a straight-line basis over the lease term. Customers periodically reviews its operating leased assets for impairment. An impairment loss is recognized if the carrying amount of the operating leased asset exceeds its fair value and is not recoverable. The carrying amount of operating leased assets is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the lease payments and the estimated residual value upon the eventual disposition of the equipment. The following table summarizes lease receivables and investment in operating leases and their corresponding balance sheet location at September 30, 2024 and December 31, 2023: (amounts in thousands) Classification September 30, 2024 December 31, 2023 ASSETS Direct financing and sales-type leases Lease receivables Loans and leases receivable $ 243,859 $ 190,559 Guaranteed residual assets Loans and leases receivable 21,878 15,783 Unguaranteed residual assets Loans and leases receivable 10,467 10,010 Deferred initial direct costs Loans and leases receivable 1,348 1,213 Unearned income Loans and leases receivable (23,208) (11,891) Net investment in direct financing and sales-type leases $ 254,344 $ 205,674 Operating leases Investment in operating leases Other assets $ 287,575 $ 282,208 Accumulated depreciation Other assets (88,636) (77,672) Deferred initial direct costs Other assets 957 1,192 Net investment in operating leases 199,896 205,728 Total lease assets $ 454,240 $ 411,402 Maturities of operating and direct financing and sales-type lease receivables were as follows at September 30, 2024: (amounts in thousands) Operating leases Direct financing and sales-type leases 2024 $ 11,314 $ 19,302 2025 41,979 63,374 2026 47,551 56,173 2027 34,377 47,608 2028 57,173 29,881 Thereafter 35,968 27,521 Total minimum payments $ 228,362 243,859 Less: interest 23,208 Present value of lease receivables $ 220,651
LEASES	LEASES Lessee Customers has operating leases for its branches, certain LPOs, and administrative offices, with remaining lease terms ranging between six months and eleven years. These operating leases comprise substantially all of Customers’ obligations in which Customers is the lessee. These lease agreements typically consist of initial lease terms ranging between one As most of Customers’ operating leases do not provide an implicit rate, Customers utilized its incremental borrowing rate when determining the present value of lease payments. The following table summarizes operating lease ROU assets and operating lease liabilities and their corresponding balance sheet location: (amounts in thousands) Classification September 30, 2024 December 31, 2023 ASSETS Operating lease ROU assets Other assets $ 35,901 $ 15,644 LIABILITIES Operating lease liabilities Other liabilities $ 37,993 $ 18,048 The following table summarizes operating lease cost and its corresponding income statement location for the periods presented: Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) Classification 2024 2023 2024 2023 Operating lease cost (1) Occupancy expenses $ 1,792 $ 1,260 $ 4,277 $ 3,775 (1) There were no variable lease costs for the three and nine months ended September 30, 2024 and 2023, and sublease income for operating leases was immaterial. Maturities of non-cancelable operating lease liabilities were as follows at September 30, 2024: (amounts in thousands) September 30, 2024 2024 $ 1,507 2025 5,668 2026 6,328 2027 5,833 2028 5,207 Thereafter 21,187 Total minimum payments 45,730 Less: interest 7,737 Present value of lease liabilities $ 37,993 Customers does not have leases where it is involved with the construction or design of an underlying asset. Cash paid pursuant to the operating lease liabilities was $1.3 million and $3.8 million for the three and nine months ended September 30, 2024, respectively. Cash paid pursuant to the operating lease liabilities was $1.3 million and $4.4 million for the three and nine months ended September 30, 2023, respectively. These payments were reported as cash flows used in operating activities in the statement of cash flows. The following table summarizes the weighted average remaining lease term and discount rate for Customers’ operating leases at September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Weighted average remaining lease term (years) Operating leases 8.6 years 5.6 years Weighted average discount rate Operating leases 4.08 % 3.28 % Equipment Lessor Customers’ commercial equipment financing group goes to market through the following origination platforms: vendors, intermediaries, direct and capital markets. The commercial equipment financing group is primarily focused on serving the following industries: transportation, construction (includes crane and utility), marine, franchise, general manufacturing (includes machine tool), helicopter/fixed wing, solar, packaging, plastics and food processing. Lease terms typically range from 24 months to 120 months. The commercial equipment financing group offers the following products: Loans, Capital Lease, PUT, TRAC, Split-TRAC, and FMV. Customers’ commercial equipment financing group leases equipments under direct finance, sales-type or operating leases. The estimated residual values for direct finance, sales-type and operating leases are established by utilizing internally developed analyses, external studies, and/or third-party appraisals to establish a residual position. For the direct finance leases, only Customers’ Split-TRAC leases have residual risk and the unguaranteed portions are typically nominal. Expected credit losses on direct financing and sales-type leases and the related estimated residual values are included in the ACL on loans and leases. Direct finance and sales-type equipment leases, are included in commercial and industrial loans and leases receivable and are recorded at the discounted amounts of lease payments receivable and the estimated residual value of the leased assets. Interest income on direct finance and sales-type leases is recognized over the term of the leases using the effective interest method. Any difference between the lower of the fair value of the underlying leased asset or the sum of the lease receivables and the carrying amount of the underlying leased asset would result to a gain or loss at the lease commencement date. Customers’ direct finance and sales-type lease activity primarily relates to leasing of new equipments. During the three and nine months ended September 30, 2024, Customers’ commercial equipment financing group executed leases of commercial clean vehicles that qualified for investment tax credits. Customers accounted for these leases as sales-type leases and were included in loans and leases receivable on the balance sheet. Customers recognized a loss on sales-type leases of $14.3 million within net gain (loss) on sale of loans and leases and the corresponding investment tax credits within income tax expense (benefit) in the statements of income for the three and nine months ended September 30, 2024. Customers recognized interest income from its sales-type and direct financing leases of $9.9 million and $7.1 million for the three months ended September 30, 2024 and 2023. Customers recognized interest income from its sales-type and direct financing leases of $27.0 million and $21.4 million for the nine months ended September 30, 2024 and 2023. Leased assets under operating leases are reported at amortized cost net of accumulated depreciation and any impairment charges, and are presented in other assets. The depreciation expense of the leased assets is recognized on a straight-line basis over the contractual term of the leases up to the expected residual value. The expected residual value and, accordingly, the monthly depreciation expense, may change throughout the term of the lease. Operating lease rental income for leased assets is recognized in commercial lease income on a straight-line basis over the lease term. Customers periodically reviews its operating leased assets for impairment. An impairment loss is recognized if the carrying amount of the operating leased asset exceeds its fair value and is not recoverable. The carrying amount of operating leased assets is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the lease payments and the estimated residual value upon the eventual disposition of the equipment. The following table summarizes lease receivables and investment in operating leases and their corresponding balance sheet location at September 30, 2024 and December 31, 2023: (amounts in thousands) Classification September 30, 2024 December 31, 2023 ASSETS Direct financing and sales-type leases Lease receivables Loans and leases receivable $ 243,859 $ 190,559 Guaranteed residual assets Loans and leases receivable 21,878 15,783 Unguaranteed residual assets Loans and leases receivable 10,467 10,010 Deferred initial direct costs Loans and leases receivable 1,348 1,213 Unearned income Loans and leases receivable (23,208) (11,891) Net investment in direct financing and sales-type leases $ 254,344 $ 205,674 Operating leases Investment in operating leases Other assets $ 287,575 $ 282,208 Accumulated depreciation Other assets (88,636) (77,672) Deferred initial direct costs Other assets 957 1,192 Net investment in operating leases 199,896 205,728 Total lease assets $ 454,240 $ 411,402 Maturities of operating and direct financing and sales-type lease receivables were as follows at September 30, 2024: (amounts in thousands) Operating leases Direct financing and sales-type leases 2024 $ 11,314 $ 19,302 2025 41,979 63,374 2026 47,551 56,173 2027 34,377 47,608 2028 57,173 29,881 Thereafter 35,968 27,521 Total minimum payments $ 228,362 243,859 Less: interest 23,208 Present value of lease receivables $ 220,651

DEPOSITS

DEPOSITS	9 Months Ended
	Sep. 30, 2024
Deposit [Abstract]
DEPOSITS	DEPOSITS The components of deposits at September 30, 2024 and December 31, 2023 were as follows: September 30, 2024 December 31, 2023 (amounts in thousands) Demand, non-interest bearing $ 4,670,809 $ 4,422,494 Demand, interest bearing 5,606,500 5,580,527 Savings, including money market deposit accounts 5,360,996 4,629,336 Time 2,431,084 3,287,879 Total deposits $ 18,069,389 $ 17,920,236 The scheduled maturities for time deposits at September 30, 2024 were as follows: (amounts in thousands) September 30, 2024 2024 $ 145,935 2025 771,882 2026 550,209 2027 305,184 2028 397,761 Thereafter 260,113 Total time deposits $ 2,431,084 Time deposits greater than the FDIC limit of $250,000 totaled $643.0 million and $186.3 million at September 30, 2024 and December 31, 2023, respectively. Demand deposit overdrafts reclassified as loans were $1.2 million at September 30, 2024 and December 31, 2023. At September 30, 2024 and December 31, 2023, the Bank had $1.5 billion and $1.1 billion in deposits, respectively, to which it had pledged $1.4 billion and $1.1 billion of available borrowing capacity through the FHLB to the depositors through a standby letter of credit arrangement, respectively.

BORROWINGS

BORROWINGS	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
BORROWINGS	BORROWINGS Short-term debt There was no short-term debt outstanding at September 30, 2024 and December 31, 2023. The following is a summary of additional information relating to Customers’ short-term debt: (dollars in thousands) September 30, 2024 (1) December 31, 2023 (2) FRB advances Maximum outstanding at any month end $ — $ — Average balance during the period — 120,099 Weighted-average interest rate during the period — % 5.23 % FHLB advances Maximum outstanding at any month end 150,000 — Average balance during the period 11,496 87,407 Weighted-average interest rate during the period 5.74 % 5.16 % Federal funds purchased Maximum outstanding at any month end — — Average balance during the period — 3,781 Weighted-average interest rate during the period — % 4.97 % (1) For the nine months ended September 30, 2024. (2) For the year ended December 31, 2023. At September 30, 2024 and December 31, 2023, Customers Bank had aggregate availability under federal funds lines totaling $1.7 billion. Long-term debt FHLB and FRB advances Long-term FHLB and FRB advances at September 30, 2024 and December 31, 2023 were as follows: September 30, 2024 December 31, 2023 (dollars in thousands) Amount Rate Amount Rate FHLB advances (1) $ 1,117,229 (2) 4.24 % (3) $ 1,203,207 3.91 % Total long-term FHLB and FRB advances $ 1,117,229 $ 1,203,207 (1) Amounts reported in the above table include fixed rate long-term advances from FHLB of $950.0 million with maturities ranging from March 2025 to March 2028, and variable rate long-term advances from FHLB of $155.0 million with maturities ranging from March 2028 to June 2029 with a returnable option that can be repaid without penalty on certain predetermined dates at Customers Bank's option, at September 30, 2024. (2) Includes $12.2 million and $3.2 million of unamortized basis adjustments from interest rate swaps designated as fair value hedges of long-term advances from FHLB at September 30, 2024 and December 31, 2023, respectively. Refer to NOTE 14 — DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES for additional information. (3) Excludes the effect of interest rate swaps designated as fair value hedges of long-term advances from FHLB. Maturities of long-term FHLB advances were as follows at September 30, 2024: September 30, 2024 (dollars in thousands) Amount (1) Rate 2024 $ — — % 2025 200,000 4.45 % 2026 200,000 4.32 % 2027 450,000 3.70 % 2028 180,000 4.75 % Thereafter 75,000 5.55 % Total long-term FHLB advances $ 1,105,000 (1) Amounts reported in the above table include variable rate long-term advances from FHLB of $155.0 million with maturities ranging from March 2028 to June 2029 with a returnable option that can be repaid without penalty on certain predetermined dates at Customers Bank's option. The maximum borrowing capacity with the FHLB and FRB at September 30, 2024 and December 31, 2023 was as follows: (amounts in thousands) September 30, 2024 December 31, 2023 Total maximum borrowing capacity with the FHLB $ 3,565,068 $ 3,474,347 Total maximum borrowing capacity with the FRB 4,180,824 3,436,000 Qualifying loans and securities serving as collateral against FHLB and FRB advances 9,508,135 8,575,137 Senior and Subordinated Debt Long-term senior notes and subordinated debt at September 30, 2024 and December 31, 2023 were as follows: (dollars in thousands) Carrying Amount Issued by Ranking September 30, 2024 December 31, 2023 Rate Issued Amount Date Issued Maturity Price Customers Bancorp Senior (1) $ 99,033 $ 98,928 2.875 % $ 100,000 August 2021 August 2031 100.000 % Customers Bancorp Senior — 24,912 4.500 % 25,000 September 2019 September 2024 100.000 % Total other borrowings $ 99,033 $ 123,840 Customers Bancorp Subordinated (2)(3) $ 72,902 $ 72,766 5.375 % $ 74,750 December 2019 December 2034 100.000 % Customers Bank Subordinated (2)(4) 109,537 109,464 6.125 % 110,000 June 2014 June 2029 100.000 % Total subordinated debt $ 182,439 $ 182,230 (1) The senior notes will bear an annual fixed rate of 2.875% until August 15, 2026. From August 15, 2026 until maturity, the notes will bear an annual interest rate equal to a benchmark rate, which is expected to be the three-month term SOFR (2) The subordinated notes qualify as Tier 2 capital for regulatory capital purposes. (3) Customers Bancorp has the ability to call the subordinated notes, in whole, or in part, at a redemption price equal to 100% of the principal balance at certain times on or after December 30, 2029. (4) The subordinated notes had an annual fixed rate of 6.125% until June 26, 2024. From June 26, 2024 until maturity, the notes bear an annual interest rate equal to the three-month LIBOR plus 344.3 basis points. Pursuant to the Adjustable Interest Rate (LIBOR) Act enacted by Congress on March 15, 2022, Customers substituted three-month term SOFR plus a tenor spread adjustment of 26.161 basis points for three-month LIBOR as the benchmark reference rate in order to calculate the annual interest rate after June 26, 2024. Customers Bank has the ability to call the subordinated notes, in whole, or in part, at a redemption price equal to 100% of the principal balance at certain times on or after June 26, 2024.

SHAREHOLDERS_ EQUITY

SHAREHOLDERS’ EQUITY	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
SHAREHOLDERS’ EQUITY	SHAREHOLDERS’ EQUITY Common Stock On June 26, 2024, the Board of Directors of Customers Bancorp authorized a new common stock repurchase program (the “2024 Share Repurchase Program”) to repurchase up to 497,509 shares of the Company’s common stock. The term of the 2024 Share Repurchase Program will extend for one year from June 26, 2024, unless earlier terminated. Purchases of shares under the 2024 Share Repurchase Program may be executed through open market purchases, privately negotiated transactions, through the use of Rule 10b5-1 plans, or otherwise. The exact number of shares, timing for such purchases, and the price and terms at and on which such purchases are to be made will be at the discretion of the Company and will comply with all applicable regulatory limitations. The Company’s previously authorized common stock repurchase program (the “Share Repurchase Program”), authorized on August 25, 2021, subsequently expired on September 27, 2023. At expiration, the Share Repurchase Program had 497,509 shares that had not been repurchased. Customers Bancorp purchased 373,974 shares of its common stock for $18.2 million under the 2024 Share Repurchase Program during the three and nine months ended September 30, 2024. Customers Bancorp purchased no shares and 1,379,883 shares of its common stock for $39.8 million under the previously authorized Share Repurchase Program during the three and nine months ended September 30, 2023, respectively. Preferred Stock As of September 30, 2024 and December 31, 2023, Customers Bancorp has two series of preferred stock outstanding. The table below summarizes Customers’ issuances of preferred stock that remain outstanding at September 30, 2024 and December 31, 2023 and the dividends paid per share. (amounts in thousands except share and per share data) Shares at Carrying value at Initial Fixed Rate Date at which dividend rate becomes floating and earliest redemption date Floating rate of Three-Month SOFR (2) Plus: Dividend Paid Per Share in 2024 (1) Fixed-to-floating rate: Issue Date September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Series E April 28, 2016 2,300,000 2,300,000 $ 55,593 $ 55,593 6.45 % June 15, 2021 5.140 % $ 2.06 Series F September 16, 2016 3,400,000 3,400,000 82,201 82,201 6.00 % December 15, 2021 4.762 % $ 1.99 Totals 5,700,000 5,700,000 $ 137,794 $ 137,794 (1) For the nine months ended September 30, 2024. (2) Pursuant to the Adjustable Interest Rate (LIBOR) Act enacted by Congress on March 15, 2022, Customers substituted three-month term SOFR plus a tenor spread adjustment of 26.161 basis points for three-month LIBOR as the benchmark reference rate on Series E and F Preferred Stock, plus 5.14% and 4.762%, respectively, beginning with dividends declared on October 25, 2023.

REGULATORY CAPITAL

REGULATORY CAPITAL	9 Months Ended
	Sep. 30, 2024
Regulatory Capital Requirements under Banking Regulations [Abstract]
REGULATORY CAPITAL	REGULATORY CAPITAL The Bank and the Bancorp are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet the minimum capital requirements can result in certain mandatory, and possibly additional discretionary, actions by regulators that, if undertaken, could have a direct material effect on Customers’ financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank and the Bancorp must meet specific capital guidelines that involve quantitative measures of their assets, liabilities and certain off-balance sheet items, as calculated under the regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Prompt corrective action provisions are not applicable to bank holding companies. In first quarter 2020, the U.S federal banking regulatory agencies permitted banking organizations to phase-in, for regulatory capital purposes, the day-one impact of the new CECL accounting rule on retained earnings over a period of three years. As part of its response to the impact of COVID-19, on March 31, 2020, the U.S. federal banking regulatory agencies issued an interim final rule that provided the option to temporarily delay certain effects of CECL on regulatory capital for two years, followed by a three-year transition period. The interim final rule allows banking organizations to delay for two years 100% of the day-one impact of adopting CECL and 25% of the cumulative change in the reported allowance for credit losses since adopting CECL. Customers has elected to adopt the interim final rule, which is reflected in the regulatory capital data presented below. The cumulative CECL capital transition impact as of December 31, 2021 which amounted to $61.6 million will be phased in at 25% per year beginning on January 1, 2022 through December 31, 2024. As of September 30, 2024, our regulatory capital ratios reflected 25%, or $15.4 million, benefit associated with the CECL transition provisions. Quantitative measures established by regulation to ensure capital adequacy require the Bank and the Bancorp to maintain minimum amounts and ratios (set forth in the following table) of common equity Tier 1, Tier 1, and total capital to risk-weighted assets, and Tier 1 capital to average assets (as defined in the regulations). At September 30, 2024 and December 31, 2023, the Bank and the Bancorp satisfied all capital requirements to which they were subject. Generally, to comply with the regulatory definition of adequately capitalized, or well capitalized, respectively, or to comply with the Basel III capital requirements, an institution must at least maintain the common equity Tier 1, Tier 1 and total risk-based capital ratios and the Tier 1 leverage ratio in excess of the related minimum ratios as set forth in the following table: Minimum Capital Levels to be Classified as: Actual Adequately Capitalized Well Capitalized Basel III Compliant (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of September 30, 2024: Common equity Tier 1 capital (to risk-weighted assets) Customers Bancorp, Inc. $ 1,777,683 12.463 % $ 641,885 4.500 % N/A N/A $ 998,488 7.000 % Customers Bank $ 1,943,059 13.636 % $ 641,212 4.500 % $ 926,125 6.500 % $ 997,441 7.000 % Tier 1 capital (to risk-weighted assets) Customers Bancorp, Inc. $ 1,915,476 13.429 % $ 855,847 6.000 % N/A N/A $ 1,212,450 8.500 % Customers Bank $ 1,943,059 13.636 % $ 854,949 6.000 % $ 1,139,932 8.000 % $ 1,211,178 8.500 % Total capital (to risk-weighted assets) Customers Bancorp, Inc. $ 2,191,266 15.362 % $ 1,141,129 8.000 % N/A N/A $ 1,497,732 10.500 % Customers Bank $ 2,145,947 15.060 % $ 1,139,932 8.000 % $ 1,424,916 10.000 % $ 1,496,161 10.500 % Tier 1 capital (to average assets) Customers Bancorp, Inc. $ 1,915,476 8.947 % $ 856,386 4.000 % N/A N/A $ 856,386 4.000 % Customers Bank $ 1,943,059 9.082 % $ 855,807 4.000 % $ 1,069,759 5.000 % $ 855,807 4.000 % As of December 31, 2023: Common equity Tier 1 capital (to risk-weighted assets) Customers Bancorp, Inc. $ 1,661,149 12.230 % $ 611,200 4.500 % N/A N/A $ 950,755 7.000 % Customers Bank $ 1,868,360 13.773 % $ 610,453 4.500 % $ 881,765 6.500 % $ 949,594 7.000 % Tier 1 capital (to risk-weighted assets) Customers Bancorp, Inc. $ 1,798,942 13.245 % $ 814,933 6.000 % N/A N/A $ 1,154,489 8.500 % Customers Bank $ 1,868,360 13.773 % $ 813,937 6.000 % $ 1,085,250 8.000 % $ 1,153,078 8.500 % Total capital (to risk-weighted assets) Customers Bancorp, Inc. $ 2,076,550 15.289 % $ 1,086,578 8.000 % N/A N/A $ 1,426,133 10.500 % Customers Bank $ 2,073,202 15.283 % $ 1,085,250 8.000 % $ 1,356,562 10.000 % $ 1,424,390 10.500 % Tier 1 capital (to average assets) Customers Bancorp, Inc. $ 1,798,942 8.375 % $ 859,189 4.000 % N/A N/A $ 859,189 4.000 % Customers Bank $ 1,868,360 8.708 % $ 858,225 4.000 % $ 1,072,782 5.000 % $ 858,225 4.000 % The Basel III Capital Rules require that we maintain a 2.500% capital conservation buffer with respect to each of common equity Tier 1, Tier 1 and total capital to risk-weighted assets, which provides for capital levels that exceed the minimum risk-based capital adequacy requirements. A financial institution with a conservation buffer of less than the required amount is subject to limitations on capital distributions, including dividend payments and stock repurchases, and certain discretionary bonus payments to executive officers.

DISCLOSURES ABOUT FAIR VALUE OF

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS	DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS Customers uses fair value measurements to record fair value adjustments to certain assets and liabilities and to disclose the fair value of its financial instruments. ASC 825, Financial Instruments , requires disclosure of the estimated fair value of an entity’s assets and liabilities considered to be financial instruments. For Customers, as for most financial institutions, the majority of its assets and liabilities are considered to be financial instruments. Many of these instruments lack an available trading market as characterized by a willing buyer and a willing seller engaging in an exchange transaction. For fair value disclosure purposes, Customers utilized certain fair value measurement criteria under ASC 820, Fair Value Measurements and Disclosures (“ASC 820”), as explained below. In accordance with ASC 820, the fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for Customers’ various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. The fair value guidance provides a consistent definition of fair value, focusing on an exit price in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The fair value is a reasonable point within the range that is most representative of fair value under current market conditions. The fair value guidance also establishes a fair value hierarchy and describes the following three levels used to classify fair value measurements. Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2: Quoted prices in markets that are not active, or inputs that are observable either directly or indirectly, for substantially the full term of the asset or liability. Level 3: Prices or valuation techniques that require adjustments to inputs that are both significant to the fair value measurement and unobservable (i.e., supported with little or no market activity). A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The following methods and assumptions were used to estimate the fair values of Customers’ financial instruments as of September 30, 2024 and December 31, 2023: Financial Instruments Recorded at Fair Value on a Recurring Basis Investment securities: The fair values of equity securities with a readily determinable fair value, AFS debt securities and debt securities reported at fair value based on a fair value option election are determined by obtaining quoted market prices on nationally recognized and foreign securities exchanges (Level 1), quoted prices in markets that are not active (Level 2), matrix pricing (Level 2), which is a mathematical technique used widely in the industry to value debt securities without relying exclusively on quoted market prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted prices, or internally and externally developed models that use unobservable inputs due to limited or no market activity of the instrument (Level 3). When quoted market prices are not available, Customers employs an independent pricing service that utilizes matrix pricing to calculate fair value. Such fair value measurements consider observable data such as dealer quotes, market spreads, cash flows, yield curves, live trading levels, trade execution data, market consensus prepayments speeds, credit information, and respective terms and conditions for debt instruments. Management maintains procedures to monitor the pricing service’s results and has an established process to challenge their valuations, or methodologies, that appear unusual or unexpected. Customers also utilizes internally and externally developed models that use unobservable inputs due to limited or no market activity of the instrument. These models use unobservable inputs that are inherently judgmental and reflect our best estimates of the assumptions a market participant would use to calculate fair value. Certain unobservable inputs in isolation may have either a directionally consistent or opposite impact on the fair value of the instrument for a given change in that input. When multiple inputs are used within the valuation techniques, a change in one input in a certain direction may be offset by an opposite change from another input. These assets are classified as Level 1, 2 or 3 fair values, based upon the lowest level of input that is significant to the fair value measurements. Loans held for sale - Residential mortgage loans (fair value option): Customers generally estimates the fair values of residential mortgage loans held for sale based on commitments on hand from investors within the secondary market for loans with similar characteristics. These assets are classified as Level 2 fair values, based upon the lowest level of input that is significant to the fair value measurements. Loans held for sale - Consumer other installment loans (fair value option): The fair value of medical installment loans within consumer other installment loans is the amount of cash initially advanced to fund the loan, as specified in the agreement with a fintech company, and generally held for up to 90 days prior to sale. These assets are classified as Level 3 fair values, based upon the lowest level of input that is significant to the fair value measurements. Loans receivable - Mortgage finance loans (fair value option): The fair value of mortgage finance loans is the amount of cash initially advanced to fund the mortgage, plus accrued interest and fees, as specified in the respective agreements. The loan is used by mortgage companies as short-term bridge financing between the funding of the mortgage loans and the finalization of the sale of the loans to an investor. Changes in fair value are not generally expected to be recognized because at inception of the transaction the underlying mortgage loans have already been sold to an approved investor. Additionally, the interest rate is variable, and the transaction is short-term, with an average life of under 30 days from purchase to sale. These assets are classified as Level 2 fair values, based upon the lowest level of input that is significant to the fair value measurements. Derivatives (assets and liabilities): The fair values of interest rate swaps, interest rate caps and credit derivatives are determined using models that incorporate readily observable market data into a market standard methodology. This methodology nets the discounted future cash receipts and the discounted expected cash payments. The discounted variable cash receipts and payments are based on expectations of future interest rates derived from observable market interest rate curves. In addition, fair value is adjusted for the effect of nonperformance risk by incorporating credit valuation adjustments for Customers and its counterparties. These assets and liabilities are classified as Level 2 fair values, based upon the lowest level of input that is significant to the fair value measurements. Derivative assets and liabilities are presented in other assets and accrued interest payable and other liabilities on the consolidated balance sheet. Financial Instruments Recorded at Fair Value on a Nonrecurring Basis Collateral-dependent loans: Collateral-dependent loans are those loans that are accounted for under ASC 326, Financial Instruments - Credit Losses (“ASC 326”), in which the Bank has measured impairment generally based on the fair value of the loan’s collateral or DCF analysis. Fair value is generally determined based upon independent third-party appraisals of the properties that collateralize the loans, DCF based upon the expected proceeds, sales agreements or letters of intent with third parties. These assets are generally classified as Level 3 fair values, based upon the lowest level of input that is significant to the fair value measurements. The following information should not be interpreted as an estimate of Customers’ fair value in its entirety because fair value calculations are only provided for a limited portion of Customers’ assets and liabilities. Due to a wide range of valuation techniques and the degree of subjectivity used in making these estimates, comparisons between Customers’ disclosures and those of other companies may not be meaningful. The estimated fair values of Customers’ financial instruments at September 30, 2024 and December 31, 2023 were as follows: Fair Value Measurements at September 30, 2024 (amounts in thousands) Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Cash and cash equivalents $ 3,088,022 $ 3,088,022 $ 3,088,022 $ — $ — Debt securities, available for sale 2,377,733 2,377,733 — 2,360,908 16,825 Debt securities, held to maturity 1,064,437 1,027,514 — 487,238 540,276 Loans held for sale 275,420 275,420 — 2,523 272,897 Total loans and leases receivable, net of allowance for credit losses on loans and leases 13,644,538 13,511,102 — 1,250,413 12,260,689 FHLB, Federal Reserve Bank, and other restricted stock 95,035 95,035 — 95,035 — Derivatives 15,546 15,546 — 15,474 72 Liabilities: Deposits $ 18,069,389 $ 18,096,656 $ 15,638,305 $ 2,458,351 $ — FHLB advances 1,117,229 1,121,074 — 1,121,074 — Other borrowings 99,033 78,000 — 78,000 — Subordinated debt 182,439 157,542 — 157,542 — Derivatives 21,486 21,486 — 21,486 — Fair Value Measurements at December 31, 2023 (amounts in thousands) Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Cash and cash equivalents $ 3,846,346 $ 3,846,346 $ 3,846,346 $ — $ — Debt securities, available for sale 2,376,860 2,376,860 — 2,341,911 34,949 Debt securities, held to maturity 1,103,170 1,046,439 — 472,311 574,128 Loans held for sale 340,317 340,317 — 1,215 339,102 Total loans and leases receivable, net of allowance for credit losses on loans and leases 12,726,456 12,513,386 — 897,912 11,615,474 FHLB, Federal Reserve Bank, and other restricted stock 109,548 109,548 — 109,548 — Derivatives 17,931 17,931 — 17,906 25 Liabilities: Deposits $ 17,920,236 $ 17,922,005 $ 14,632,357 $ 3,289,648 $ — FHLB advances 1,203,207 1,188,517 — 1,188,517 — Other borrowings 123,840 103,674 — 103,674 — Subordinated debt 182,230 164,233 — 164,233 — Derivatives 27,110 27,110 — 27,110 — For financial assets and liabilities measured at fair value on a recurring and nonrecurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, 2024 and December 31, 2023 were as follows: September 30, 2024 Fair Value Measurements at the End of the Reporting Period Using (amounts in thousands) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Total Measured at Fair Value on a Recurring Basis: Assets Available for sale debt securities: Asset-backed securities $ — $ 20,845 $ 16,825 $ 37,670 Agency-guaranteed residential mortgage-backed securities — 221,178 — 221,178 Agency-guaranteed residential collateralized mortgage obligations — 194,873 — 194,873 Agency-guaranteed commercial collateralized mortgage obligations — 96,943 — 96,943 Collateralized loan obligations — 310,429 — 310,429 Commercial mortgage-backed securities — 77,074 — 77,074 Corporate notes — 594,971 — 594,971 Private label collateralized mortgage obligations — 844,595 — 844,595 Derivatives — 15,474 72 15,546 Loans held for sale – fair value option — 2,523 217,098 219,621 Loans receivable, mortgage finance – fair value option — 1,250,413 — 1,250,413 Total assets – recurring fair value measurements $ — $ 3,629,318 $ 233,995 $ 3,863,313 Liabilities Derivatives $ — $ 21,486 $ — $ 21,486 Measured at Fair Value on a Nonrecurring Basis: Assets Collateral-dependent loans $ — $ — $ 18,003 $ 18,003 Total assets – nonrecurring fair value measurements $ — $ — $ 18,003 $ 18,003 December 31, 2023 Fair Value Measurements at the End of the Reporting Period Using (amounts in thousands) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Total Measured at Fair Value on a Recurring Basis: Assets Available for sale debt securities: Asset-backed securities $ — $ 57,680 $ 34,949 $ 92,629 Agency-guaranteed residential collateralized mortgage obligations — 116,908 — 116,908 Collateralized loan obligations — 489,092 — 489,092 Commercial mortgage-backed securities — 121,636 — 121,636 Corporate notes — 583,034 — 583,034 Private label collateralized mortgage obligations — 973,561 — 973,561 Derivatives — 17,906 25 17,931 Loans held for sale – fair value option — 1,215 188,062 189,277 Loans receivable, mortgage finance – fair value option — 897,912 — 897,912 Total assets – recurring fair value measurements $ — $ 3,258,944 $ 223,036 $ 3,481,980 Liabilities Derivatives $ — $ 27,110 $ — $ 27,110 Measured at Fair Value on a Nonrecurring Basis: Assets Collateral-dependent loans $ — $ — $ 2,373 $ 2,373 Total assets – nonrecurring fair value measurements $ — $ — $ 2,373 $ 2,373 The changes in asset-backed securities (Level 3 assets) measured at fair value on a recurring basis for the three and nine months ended September 30, 2024 and 2023 are summarized in the tables below. Asset-backed securities (amounts in thousands) Three Months Ended September 30, 2024 2023 Balance at July 1 $ 21,862 $ 51,825 Principal payments and premium amortization (5,704) (10,023) Increase in allowance for credit losses (24) (442) Decrease in allowance for credit losses 84 250 Change in fair value recognized in OCI 607 755 Balance at September 30 $ 16,825 $ 42,365 Asset-backed securities (amounts in thousands) Nine Months Ended September 30, 2024 2023 Balance at January 1 $ 34,949 $ 73,266 Principal payments and premium amortization (19,652) (31,683) Increase in allowance for credit losses (24) (1,488) Decrease in allowance for credit losses 200 311 Change in fair value recognized in OCI 1,352 1,959 Balance at September 30 $ 16,825 $ 42,365 The changes in other installment loans (Level 3 assets) measured at fair value on a recurring basis, based on an election made to account for the loans at fair value for the three and nine months ended September 30, 2024 and 2023 are summarized in the tables below. Other Installment Loans (amounts in thousands) Three Months Ended September 30, 2024 2023 Balance at July 1 $ 247,442 $ — Originations 223,625 — Sales (200,041) — Principal payments (53,928) — Change in fair value recognized in earnings — — Balance at September 30 $ 217,098 $ — Other Installment Loans (amounts in thousands) Nine Months Ended September 30, 2024 2023 Balance at January 1 $ 188,062 $ — Originations 704,081 — Sales (518,271) — Principal payments (156,774) — Change in fair value recognized in earnings — — Balance at September 30 $ 217,098 $ — There were no transfers between levels during the three and nine months ended September 30, 2024 and 2023. The following tables summarize financial assets and financial liabilities measured at fair value as of September 30, 2024 and December 31, 2023 on a recurring and nonrecurring basis for which Customers utilized Level 3 inputs to measure fair value. The unobservable Level 3 inputs noted below contain a level of uncertainty that may differ from what is realized in an immediate settlement of the assets. Therefore, Customers may realize a value higher or lower than the current estimated fair value of the assets. Quantitative Information about Level 3 Fair Value Measurements (dollars in thousands) Fair Value Valuation Technique Unobservable Input Range September 30, 2024 Asset-backed securities $ 16,825 Discounted cash flow Discount rate Annualized loss rate Constant prepayment rate 9% - 10% (9%) 3% - 13% (5%) 19% - 20% (20%) Quantitative Information about Level 3 Fair Value Measurements (dollars in thousands) Fair Value Valuation Technique Unobservable Input Range December 31, 2023 Asset-backed securities $ 34,949 Discounted cash flow Discount rate Annualized loss rate Constant prepayment rate 12% - 14% (13%) 3% - 13% (5%) 11% - 30% (26%)

DERIVATIVE INSTRUMENTS AND HEDG

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Risk Management Objectives of Using Derivatives Customers is exposed to certain risks arising from both its business operations and economic conditions. Customers manages economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources, and durations of its assets and liabilities. Specifically, Customers enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the values of which are determined by interest rates. Customers’ derivative financial instruments are used to manage differences in the amount, timing, and duration of Customers’ known or expected cash receipts and its known or expected cash payments principally related to certain borrowings and deposits. Customers also has interest-rate derivatives resulting from an accommodation provided to certain qualifying customers, and therefore, they are not used to manage Customers’ interest-rate risk in assets or liabilities. Customers manages a matched book with respect to its derivative instruments used in this customer service in order to minimize its net risk exposure resulting from such transactions. Fair Value Hedges of Benchmark Interest-Rate Risk Customers is exposed to changes in the fair value of certain of its fixed rate AFS debt securities, deposits and FHLB advances due to changes in the benchmark interest rate. Customers uses interest rate swaps to manage its exposure to changes in fair value on these instruments attributable to changes in the designated benchmark interest rate such as the Fed Funds Effective Swap Rate. Interest rate swaps designated as fair value hedges of certain fixed rate AFS debt securities involve the payment of fixed-rate amounts to a counterparty in exchange for Customers receiving variable-rate payments over the life of the agreements without the exchange of the underlying notional amount. Interest rate swaps designated as fair value hedges of certain deposits and FHLB advances involve the payment of variable-rate amounts to a counterparty in exchange for Customers receiving fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in net interest income. At September 30, 2024, Customers had 43 outstanding interest rate derivatives with notional amounts totaling $2.3 billion that were designated as fair value hedges of certain AFS debt securities, deposits and FHLB advances. During the three and nine months ended September 30, 2024, Customers entered into 12 and 37 interest rate derivatives with notional amounts totaling $431.6 million and $1.8 billion, respectively, that were designated as fair value hedges of certain deposits and FHLB advances. During the nine months ended September 30, 2023, Customers entered into five interest rate derivatives with notional amounts totaling $1.0 billion, two of which were terminated with notional amounts totaling $550.0 million that were designated as fair value hedges of certain deposits and FHLB advances resulting in $4.6 million of basis adjustments being amortized over the remaining terms of the hedged items as a reduction in interest expense. At December 31, 2023, Customers had six outstanding interest rate derivatives with notional amounts totaling $472.5 million that were designated as fair value hedges of certain AFS debt securities and FHLB advances. As of September 30, 2024 and December 31, 2023, the following amounts were recorded on the consolidated balance sheet related to cumulative basis adjustments for fair value hedges. Amortized Cost Cumulative Amount of Fair Value Hedging Adjustment to Hedged Items (amounts in thousands) September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 AFS debt securities $ 22,500 $ 22,500 $ 202 $ 941 Deposits 1,614,617 300,000 22,191 1,432 FHLB advances 1,200,000 700,000 12,229 3,206 Derivatives Not Designated as Hedging Instruments Customers executes interest rate swaps (typically the loan customers will swap a floating-rate loan for a fixed-rate loan) and interest rate caps with commercial banking customers to facilitate their respective risk management strategies. The customer interest rate swaps and interest rate caps are simultaneously offset by interest rate swaps and interest rate caps that Customers executes with a third party in order to minimize interest-rate risk exposure resulting from such transactions. As the interest rate swaps and interest rate caps associated with this program do not meet the hedge accounting requirements, changes in the fair value of both the customer swaps and caps and the offsetting third-party market swaps and caps are recognized directly in earnings. At September 30, 2024, Customers had 130 interest rate swaps with an aggregate notional amount of $1.3 billion and two interest rate caps with an aggregated notional amount of $55.6 million related to this program. At December 31, 2023, Customers had 132 interest rate swaps with an aggregate notional amount of $1.2 billion and two interest rate caps with an aggregate notional amount of $55.6 million related to this program. Fair Value of Derivative Instruments on the Balance Sheet The following tables present the fair value of Customers’ derivative financial instruments as well as their presentation on the consolidated balance sheets as of September 30, 2024 and December 31, 2023. September 30, 2024 Derivative Assets Derivative Liabilities (amounts in thousands) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives not designated as hedging instruments: Interest rate swaps and caps (1) Other assets $ 15,473 Other liabilities $ 21,474 December 31, 2023 Derivative Assets Derivative Liabilities (amounts in thousands) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives not designated as hedging instruments: Interest rate swaps and caps (1) Other assets $ 17,903 Other liabilities $ 27,097 (1) Customers’ centrally cleared derivatives are legally settled through variation margin payments and these payments are reflected as a reduction of the related derivative asset or liability, including accrued interest, on the consolidated balance sheet. Effect of Derivative Instruments on Net Income The following table presents amounts included in the consolidated statements of income related to derivatives designated as fair value hedges and derivatives not designated as hedges for the three and nine months ended September 30, 2024 and 2023. Amount of Income (Loss) Recognized in Earnings Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) Income Statement Location 2024 2023 2024 2023 Derivatives designated as fair value hedges: Recognized on interest rate swaps Net interest income $ 42,717 $ 6,377 $ 54,453 $ 13,209 Recognized on hedged AFS debt securities Net interest income (306) (196) (739) (446) Recognized on hedged deposits Net interest income (23,444) — (25,130) — Recognized on hedged FHLB advances Net interest income (18,967) (6,181) (28,584) (12,763) Total $ — $ — $ — $ — Derivatives not designated as hedging instruments: Interest rate swaps and caps Other non-interest income $ 374 $ 192 $ 1,109 $ 332 Credit-risk-related Contingent Features By entering into derivative contracts, Customers is exposed to credit risk. The credit risk associated with derivatives executed with customers is the same as that involved in extending the related loans and is subject to the same standard credit policies. To mitigate the credit-risk exposure to major derivative dealer counterparties, Customers only enters into agreements with those counterparties that maintain credit ratings of high quality or with central clearing parties. Agreements with major derivative dealer counterparties contain provisions whereby default on any of Customers’ indebtedness would be considered a default on its derivative obligations. Customers also has entered into agreements that contain provisions under which the counterparty could require Customers to settle its obligations if Customers fails to maintain its status as a well/adequately capitalized institution. As of September 30, 2024, the fair value of derivatives in a net asset position related to these agreements was $5.6 million. In addition, Customers, which has collateral posting thresholds with certain of these counterparties, had received $6.1 million of cash as collateral at September 30, 2024. Customers records cash posted or received as collateral with these counterparties, except with a central clearing entity, as a reduction or an increase in the outstanding balance of cash and cash equivalents and an increase in the balance of other assets or other liabilities. Disclosures about Offsetting Assets and Liabilities The following tables present derivative instruments that are subject to enforceable master netting arrangements. Customers’ interest rate swaps and interest rate caps with institutional counterparties are subject to master netting arrangements and are included in the tables below. Interest rate swaps and interest rate caps with commercial banking customers are not subject to master netting arrangements and are excluded from the tables below. Customers has not made a policy election to offset its derivative positions. Gross Amounts Recognized on the Consolidated Balance Sheet Gross Amounts Not Offset in the Consolidated Balance Sheet Net Amount (amounts in thousands) Financial Instruments Cash Collateral Received/Posted September 30, 2024 Interest rate derivative assets with institutional counterparties $ 10,647 $ (5,079) $ (5,568) $ — Interest rate derivative liabilities with institutional counterparties $ 5,079 $ (5,079) $ — $ — Gross Amounts Recognized on the Consolidated Balance Sheet Gross Amounts Not Offset in the Consolidated Balance Sheet Net Amount (amounts in thousands) Financial Instruments Cash Collateral Received/Posted December 31, 2023 Interest rate derivative assets with institutional counterparties $ 17,439 $ (500) $ (16,939) $ — Interest rate derivative liabilities with institutional counterparties $ 500 $ (500) $ — $ —

LOSS CONTINGENCIES

LOSS CONTINGENCIES	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
LOSS CONTINGENCIES	LOSS CONTINGENCIES Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there are any such matters that will have a material effect on the consolidated financial statements that are not currently accrued for. However, in light of the uncertainties inherent in these matters, it is possible that the ultimate resolution may have a material adverse effect on Customers’ results of operations for a particular period, and future changes in circumstances or additional information could result in accruals or resolution in excess of established accruals, which could adversely affect Customers’ results of operations, potentially materially.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net income	$ 46,743	$ 86,756	$ 154,554	$ 188,051

Insider Trading Arrangements

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

SIGNIFICANT ACCOUNTING POLICI_2

SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION (Policies)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The interim unaudited consolidated financial statements have been prepared in conformity with U.S. GAAP and pursuant to the rules and regulations of the SEC. These interim unaudited consolidated financial statements reflect all normal and recurring adjustments that are, in the opinion of management, necessary to present a fair statement of the financial position and the results of operations and cash flows of Customers Bancorp and subsidiaries for the interim periods presented. Certain information and footnote disclosures normally included in the annual consolidated financial statements have been omitted from these interim unaudited consolidated financial statements as permitted by SEC rules and regulations. The December 31, 2023 consolidated balance sheet presented in this report has been derived from Customers Bancorp’s audited 2023 consolidated financial statements. Management believes that the disclosures are adequate to present fairly the consolidated financial statements as of the dates and for the periods presented. These interim unaudited consolidated financial statements should be read in conjunction with the 2023 consolidated financial statements of Customers Bancorp and subsidiaries included in Customers’ Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on February 29, 2024 (the “2023 Form 10-K”). The 2023 Form 10-K describes Customers Bancorp’s significant accounting policies. There have been no material changes to Customers Bancorp’s significant accounting policies noted above for the three and nine months ended September 30, 2024.
Recently Issued Accounting Standards and Accounting Standards Issued But Not Yet Adopted	Recently Issued Accounting Standards Presented below are recently issued accounting standards that Customers has adopted as well as those that the FASB has issued but are not yet effective. Accounting Standards Adopted in 2024 Standard Summary of Guidance Effects on Financial Statements ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions Issued June 2022 • Clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and not considered in measuring fair value. • Prohibits recognition and measurement of a contractual sale restriction on the sale of an equity security as a separate unit of account. • Provides disclosure requirements for the equity securities subject to contractual sale restrictions. • Effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial statements that have not yet been issued or made available for issuance. • Customers adopted this guidance on January 1, 2024. This guidance did not have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. ASU 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method Issued March 2023 • Provides an election to account for tax equity investments, regardless of the tax credit program, using the proportional amortization method provided that certain conditions are met. • Customers adopted this guidance on January 1, 2024. This guidance did not have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. Accounting Standards Issued But Not Yet Adopted Standard Summary of Guidance Effects on Financial Statements ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures Issued November 2023 • Requires a public entity, including a public entity that has a single reportable segment to disclose, on an annual and interim basis, all disclosures required by the amendments in this ASU and all existing disclosures in ASC 280. • Requires disclosures of significant segment expenses included within each reportable segment’s profit or loss that are regularly provided to the CODM, an amount for other segment items by reportable segment and a description of its composition, the title and position of the CODM and an explanation of how the CODM uses the reported measure of segment profit or loss. • Clarifies that more than one measure of a segment’s profit or loss may be reported if the CODM uses them in assessing segment performance and deciding how to allocate resources, provided that at least one of the reported segment profit or loss measure is consistent with the measurement principles used in measuring the corresponding amounts in the entity’s consolidated financial statements. • Effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. • Customers will adopt this ASU and provide the newly required disclosures in the consolidated financial statements for the year ending December 31, 2024. Standard Summary of Guidance Effects on Financial Statements ASU 2023-08, Intangibles - Goodwill and Other - Crypto Assets (Subtopic 250-60) Issued December 2023 • Requires crypto assets meeting certain criteria to be subsequently measured at fair value with changes recognized in net income each reporting period. • Requires crypto assets measured at fair value to be presented separately from other intangible assets in the balance sheet and changes from the remeasurement of crypto assets separately from changes in the carrying amounts of other intangible assets in the income statement. • Requires cash receipts arising from crypto assets that are received as noncash consideration in the ordinary course of business and converted nearly immediately into cash as operating activities in the statement of cash flows. • Effective for fiscal years beginning after December 15, 2024, including interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial statements that have not yet been issued. • Customers does not expect this ASU to have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures Issued December 2023 • Requires public entities to disclose annually a tabular reconciliation of specific reconciling items, including those items exceeding five percent of the amount computed by multiplying income from continuing operations before income taxes by the statutory income tax rate, in the income tax rate reconciliation of the effective tax rate to the statutory tax rate. • Requires disclosures of income taxes paid, net of refunds received, disaggregated by federal, state and foreign taxes and by individual jurisdictions where income taxes paid is equal to or greater than five percent of total income taxes paid, net of refunds received. • Effective for fiscal years beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued. • Customers is currently evaluating the expected impact of this ASU on Customers’ consolidated financial statements. ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40) Issued November 2024 • Requires disclosure in the notes to financial statements at each interim and annual reporting period of specified information about certain costs and expenses including purchases of inventory, employee compensation, depreciation, intangible asset amortization and deprecation, depletion, and amortization recognized as part of oil-and gas-producing activities. • Requires disclosure of certain amounts already required to be disclosed under U.S. GAAP in the same disclosure as the other disaggregation requirements. • Requires disclosure of a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. • Requires disclosure of the total amount of selling expenses and, in annual reporting periods, an entity's definition of selling expenses. • Effective for fiscal years beginning after December 15, 2026. Early adoption is permitted. • Customers is currently evaluating the expected impact of this ASU on Customers’ consolidated financial statements.
Variable Interest Entity	Customers’ transactions with unconsolidated VIEs include sales of consumer installment loans and investments in the securities issued by the VIEs. Customers is not the primary beneficiary of the VIEs because Customers has no right to make decisions that will most significantly affect the economic performance of the VIEs. Customers’ continuing involvement with the unconsolidated VIEs is not significant. Customers’ continuing involvement is not considered to be significant where Customers only invests in securities issued by the VIE and was not involved in the design of the VIE or where Customers has transferred financial assets to the VIE for only cash consideration. Customers’ investments in the securities issued by the VIEs are classified as AFS or HTM debt securities on the consolidated balance sheets, and represent Customers’ maximum exposure to loss.
Fair Value Measurement	Customers uses fair value measurements to record fair value adjustments to certain assets and liabilities and to disclose the fair value of its financial instruments. ASC 825, Financial Instruments , requires disclosure of the estimated fair value of an entity’s assets and liabilities considered to be financial instruments. For Customers, as for most financial institutions, the majority of its assets and liabilities are considered to be financial instruments. Many of these instruments lack an available trading market as characterized by a willing buyer and a willing seller engaging in an exchange transaction. For fair value disclosure purposes, Customers utilized certain fair value measurement criteria under ASC 820, Fair Value Measurements and Disclosures (“ASC 820”), as explained below. In accordance with ASC 820, the fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for Customers’ various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. The fair value guidance provides a consistent definition of fair value, focusing on an exit price in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The fair value is a reasonable point within the range that is most representative of fair value under current market conditions. The fair value guidance also establishes a fair value hierarchy and describes the following three levels used to classify fair value measurements. Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2: Quoted prices in markets that are not active, or inputs that are observable either directly or indirectly, for substantially the full term of the asset or liability. Level 3: Prices or valuation techniques that require adjustments to inputs that are both significant to the fair value measurement and unobservable (i.e., supported with little or no market activity). A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.
Risk Management Objective of Using Derivatives	Risk Management Objectives of Using Derivatives Customers is exposed to certain risks arising from both its business operations and economic conditions. Customers manages economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources, and durations of its assets and liabilities. Specifically, Customers enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the values of which are determined by interest rates. Customers’ derivative financial instruments are used to manage differences in the amount, timing, and duration of Customers’ known or expected cash receipts and its known or expected cash payments principally related to certain borrowings and deposits. Customers also has interest-rate derivatives resulting from an accommodation provided to certain qualifying customers, and therefore, they are not used to manage Customers’ interest-rate risk in assets or liabilities. Customers manages a matched book with respect to its derivative instruments used in this customer service in order to minimize its net risk exposure resulting from such transactions.

SIGNIFICANT ACCOUNTING POLICI_3

SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION (Tables)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	Presented below are recently issued accounting standards that Customers has adopted as well as those that the FASB has issued but are not yet effective. Accounting Standards Adopted in 2024 Standard Summary of Guidance Effects on Financial Statements ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions Issued June 2022 • Clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and not considered in measuring fair value. • Prohibits recognition and measurement of a contractual sale restriction on the sale of an equity security as a separate unit of account. • Provides disclosure requirements for the equity securities subject to contractual sale restrictions. • Effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial statements that have not yet been issued or made available for issuance. • Customers adopted this guidance on January 1, 2024. This guidance did not have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. ASU 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method Issued March 2023 • Provides an election to account for tax equity investments, regardless of the tax credit program, using the proportional amortization method provided that certain conditions are met. • Customers adopted this guidance on January 1, 2024. This guidance did not have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. Accounting Standards Issued But Not Yet Adopted Standard Summary of Guidance Effects on Financial Statements ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures Issued November 2023 • Requires a public entity, including a public entity that has a single reportable segment to disclose, on an annual and interim basis, all disclosures required by the amendments in this ASU and all existing disclosures in ASC 280. • Requires disclosures of significant segment expenses included within each reportable segment’s profit or loss that are regularly provided to the CODM, an amount for other segment items by reportable segment and a description of its composition, the title and position of the CODM and an explanation of how the CODM uses the reported measure of segment profit or loss. • Clarifies that more than one measure of a segment’s profit or loss may be reported if the CODM uses them in assessing segment performance and deciding how to allocate resources, provided that at least one of the reported segment profit or loss measure is consistent with the measurement principles used in measuring the corresponding amounts in the entity’s consolidated financial statements. • Effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. • Customers will adopt this ASU and provide the newly required disclosures in the consolidated financial statements for the year ending December 31, 2024. Standard Summary of Guidance Effects on Financial Statements ASU 2023-08, Intangibles - Goodwill and Other - Crypto Assets (Subtopic 250-60) Issued December 2023 • Requires crypto assets meeting certain criteria to be subsequently measured at fair value with changes recognized in net income each reporting period. • Requires crypto assets measured at fair value to be presented separately from other intangible assets in the balance sheet and changes from the remeasurement of crypto assets separately from changes in the carrying amounts of other intangible assets in the income statement. • Requires cash receipts arising from crypto assets that are received as noncash consideration in the ordinary course of business and converted nearly immediately into cash as operating activities in the statement of cash flows. • Effective for fiscal years beginning after December 15, 2024, including interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial statements that have not yet been issued. • Customers does not expect this ASU to have a material impact on Customers’ financial condition, results of operations and consolidated financial statements. ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures Issued December 2023 • Requires public entities to disclose annually a tabular reconciliation of specific reconciling items, including those items exceeding five percent of the amount computed by multiplying income from continuing operations before income taxes by the statutory income tax rate, in the income tax rate reconciliation of the effective tax rate to the statutory tax rate. • Requires disclosures of income taxes paid, net of refunds received, disaggregated by federal, state and foreign taxes and by individual jurisdictions where income taxes paid is equal to or greater than five percent of total income taxes paid, net of refunds received. • Effective for fiscal years beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued. • Customers is currently evaluating the expected impact of this ASU on Customers’ consolidated financial statements. ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40) Issued November 2024 • Requires disclosure in the notes to financial statements at each interim and annual reporting period of specified information about certain costs and expenses including purchases of inventory, employee compensation, depreciation, intangible asset amortization and deprecation, depletion, and amortization recognized as part of oil-and gas-producing activities. • Requires disclosure of certain amounts already required to be disclosed under U.S. GAAP in the same disclosure as the other disaggregation requirements. • Requires disclosure of a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. • Requires disclosure of the total amount of selling expenses and, in annual reporting periods, an entity's definition of selling expenses. • Effective for fiscal years beginning after December 15, 2026. Early adoption is permitted. • Customers is currently evaluating the expected impact of this ASU on Customers’ consolidated financial statements.

EARNINGS (LOSS) PER SHARE (Tabl

EARNINGS (LOSS) PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Components of Earnings (Loss) Per Share	The following are the components and results of Customers’ earnings per common share calculations for the periods presented. Three Months Ended Nine Months Ended (amounts in thousands, except share and per share data) 2024 2023 2024 2023 Net income available to common shareholders $ 42,937 $ 82,953 $ 143,163 $ 177,225 Weighted-average number of common shares outstanding – basic 31,567,797 31,290,581 31,563,660 31,452,700 Share-based compensation plans 1,198,691 884,503 1,209,705 583,759 Weighted-average number of common shares – diluted 32,766,488 32,175,084 32,773,365 32,036,459 Basic earnings per common share $ 1.36 $ 2.65 $ 4.54 $ 5.63 Diluted earnings per common share 1.31 2.58 4.37 5.53
Anti-dilutive Securities Excluded from Computation of Earnings Per Share	The following are securities that could potentially dilute basic earnings per common share in future periods that were not included in the computation of diluted earnings per common share because either the performance conditions for certain of the share-based compensation awards have not been met or to do so would have been anti-dilutive for the periods presented. Three Months Ended Nine Months Ended 2024 2023 2024 2023 Anti-dilutive securities: Share-based compensation awards — 319,973 — 685,951

CHANGES IN ACCUMULATED OTHER _2

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT (Tables)	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income (Loss)	The following tables present the changes in accumulated other comprehensive income (loss) by component for the three and nine months ended September 30, 2024 and 2023. Amounts in parentheses indicate reductions to AOCI. Unrealized Gains (Losses) Available for Sale Securities (1) Three Months Ended September 30, (amounts in thousands) 2024 2023 Balance at July 1 $ (131,358) $ (168,176) Unrealized gains (losses) arising during period, before tax 32,810 23,666 Income tax effect (8,432) (6,011) Other comprehensive income (loss) before reclassifications 24,378 17,655 Reclassification adjustments for (gains) losses included in net income, before tax — (429) Income tax effect — 109 Amounts reclassified from accumulated other comprehensive income (loss) to net income — (320) Amortization of unrealized loss on securities transferred from available for sale to held to maturity 1,209 1,379 Income tax effect (311) (350) Amortization of unrealized loss on securities transferred from available for sale to held to maturity 898 1,029 Net current-period other comprehensive income (loss) 25,276 18,364 Balance at September 30 $ (106,082) $ (149,812) Unrealized Gains (Losses) Available for Sale Securities (1) Nine Months Ended September 30, (amounts in thousands) 2024 2023 Balance at January 1 $ (136,569) $ (163,096) Unrealized gains (losses) arising during period, before tax 36,439 14,535 Income tax effect (9,351) (3,692) Other comprehensive income (loss) before reclassifications 27,088 10,843 Reclassification adjustments for (gains) losses included in net income, before tax 749 (429) Income tax effect (193) 109 Amounts reclassified from accumulated other comprehensive income (loss) to net income 556 (320) Amortization of unrealized loss on securities transferred from available for sale to held to maturity 3,821 3,700 Income tax effect (978) (939) Amortization of unrealized loss on securities transferred from available for sale to held to maturity 2,843 2,761 Net current-period other comprehensive income (loss) 30,487 13,284 Balance at September 30 $ (106,082) $ (149,812) (1) Reclassification amounts for AFS debt securities are reported as gain (loss) on sale of investment securities and amortization of unrealized losses on debt securities transferred from available-for-sale to held-to-maturity is reported within interest income on the consolidated statements of income.

INVESTMENT SECURITIES (Tables)

INVESTMENT SECURITIES (Tables)	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Cost and Approximate Fair Value of Investment Securities and Held-to-Maturity Securities	The amortized cost, approximate fair value and allowance for credit losses of investment securities at fair value as of September 30, 2024 and December 31, 2023 are summarized as follows: September 30, 2024 (1) (amounts in thousands) Amortized Cost Allowance for Credit Losses Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale debt securities: Asset-backed securities $ 40,179 $ (307) $ — $ (2,202) $ 37,670 Agency-guaranteed residential mortgage-backed securities 216,821 — 4,357 — 221,178 Agency-guaranteed residential collateralized mortgage obligations 201,529 — 1,277 (7,933) 194,873 Agency-guaranteed commercial collateralized mortgage obligations 96,200 — 1,361 (618) 96,943 Collateralized loan obligations 315,096 — 100 (4,767) 310,429 Commercial mortgage-backed securities 78,711 — — (1,637) 77,074 Corporate notes 660,626 (4,332) 646 (61,969) 594,971 Private label collateralized mortgage obligations 879,555 — 1,573 (36,533) 844,595 Available for sale debt securities $ 2,488,717 $ (4,639) $ 9,314 $ (115,659) 2,377,733 Equity securities (2) 34,336 Total investment securities, at fair value $ 2,412,069 December 31, 2023 (1) (amounts in thousands) Amortized Cost Allowance for Credit Losses Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale debt securities: Asset-backed securities $ 97,359 $ (483) $ 15 $ (4,262) $ 92,629 Agency-guaranteed residential collateralized mortgage obligations 129,589 — — (12,681) 116,908 Collateralized loan obligations 500,109 — 1 (11,018) 489,092 Commercial mortgage-backed securities 125,885 — — (4,249) 121,636 Corporate notes 636,880 (3,469) 79 (50,456) 583,034 Private label collateralized mortgage obligations 1,034,841 — 1,201 (62,481) 973,561 Available for sale debt securities $ 2,524,663 $ (3,952) $ 1,296 $ (145,147) 2,376,860 Equity securities (2) 28,780 Total investment securities, at fair value $ 2,405,640 (1) Accrued interest on AFS debt securities totaled $19.4 million and $14.7 million at September 30, 2024 and December 31, 2023, respectively, and is included in accrued interest receivable on the consolidated balance sheet. (2) Includes perpetual preferred stock issued by domestic banks and domestic bank holding companies and equity securities issued by fintech companies, without a readily determinable fair value, and CRA-qualified mutual fund shares at September 30, 2024 and December 31, 2023. No impairments or measurement adjustments have been recorded on the equity securities without a readily determinable fair value since acquisition. The amortized cost, approximate fair value and allowance for credit losses of investment securities held to maturity as of September 30, 2024 and December 31, 2023 are summarized as follows: September 30, 2024 (1) (amounts in thousands) Amortized Cost Allowance for Credit Losses Net Carrying Value Gross Unrealized Gains Gross Unrealized Losses Fair Value Held to maturity debt securities: Asset-backed securities $ 538,832 $ — $ 538,832 $ 1,628 $ (184) $ 540,276 Agency-guaranteed residential mortgage-backed securities 6,920 — 6,920 — (522) 6,398 Agency-guaranteed commercial mortgage-backed securities 1,790 — 1,790 — (271) 1,519 Agency-guaranteed residential collateralized mortgage obligations 174,098 — 174,098 — (11,221) 162,877 Agency-guaranteed commercial collateralized mortgage obligations 159,050 — 159,050 — (19,426) 139,624 Private label collateralized mortgage obligations 183,747 — 183,747 789 (7,716) 176,820 Total held to maturity debt securities $ 1,064,437 $ — $ 1,064,437 $ 2,417 $ (39,340) $ 1,027,514 December 31, 2023 (1) (amounts in thousands) Amortized Cost Allowance for Credit Losses Net Carrying Value Gross Unrealized Gains Gross Unrealized Losses Fair Value Held to maturity debt securities: Asset-backed securities $ 575,990 $ — $ 575,990 $ 202 $ (2,064) $ 574,128 Agency-guaranteed residential mortgage-backed securities 7,039 — 7,039 — (649) 6,390 Agency-guaranteed commercial mortgage-backed securities 1,850 — 1,850 — (134) 1,716 Agency-guaranteed residential collateralized mortgage obligations 186,636 — 186,636 — (19,049) 167,587 Agency-guaranteed commercial collateralized mortgage obligations 146,765 — 146,765 — (23,178) 123,587 Private label collateralized mortgage obligations 184,890 — 184,890 — (11,859) 173,031 Total held to maturity debt securities $ 1,103,170 $ — $ 1,103,170 $ 202 $ (56,933) $ 1,046,439 (1) Accrued interest on HTM debt securities totaled $2.6 million and $2.7 million at September 30, 2024 and December 31, 2023, respectively, and is included in accrued interest receivable on the consolidated balance sheet.
Gain (Loss) on Securities	The following table presents gross realized gains and realized losses from the sale of AFS debt securities for the three and nine months ended September 30, 2024 and 2023: Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) 2024 2023 2024 2023 Gross realized gains $ — $ — $ 176 $ — Gross realized losses — (429) (925) (429) Net realized gains (losses) on sale of available for sale debt securities $ — $ (429) $ (749) $ (429)
Summary of Available-for-Sale and Held-to-Maturity Debt Securities by Stated Maturity	The following table presents AFS debt securities by stated maturity. Debt securities backed by mortgages and other assets have expected maturities that differ from contractual maturities because borrowers have the right to call or prepay and, therefore, these debt securities are classified separately with no specific maturity date: September 30, 2024 (amounts in thousands) Amortized Fair Due in one year or less $ 41,523 $ 29,940 Due after one year through five years 531,379 484,726 Due after five years through ten years 87,724 80,305 Asset-backed securities 40,179 37,670 Agency-guaranteed residential mortgage-backed securities 216,821 221,178 Agency-guaranteed residential collateralized mortgage obligations 201,529 194,873 Agency-guaranteed commercial collateralized mortgage obligations 96,200 96,943 Collateralized loan obligations 315,096 310,429 Commercial mortgage-backed securities 78,711 77,074 Private label collateralized mortgage obligations 879,555 844,595 Total available for sale debt securities $ 2,488,717 $ 2,377,733 The following table presents HTM debt securities by stated maturity, including debt securities backed by mortgages and other assets with expected maturities that differ from contractual maturities because borrowers have the right to call or prepay and, therefore, are classified separately with no specific maturity date: September 30, 2024 (amounts in thousands) Amortized Fair Asset-backed securities $ 538,832 $ 540,276 Agency-guaranteed residential mortgage-backed securities 6,920 6,398 Agency-guaranteed commercial mortgage-backed securities 1,790 1,519 Agency-guaranteed residential collateralized mortgage obligations 174,098 162,877 Agency-guaranteed commercial collateralized mortgage obligations 159,050 139,624 Private label collateralized mortgage obligations 183,747 176,820 Total held to maturity debt securities $ 1,064,437 $ 1,027,514
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value	Gross unrealized losses and fair value of Customers’ AFS debt securities for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at September 30, 2024 and December 31, 2023 were as follows: September 30, 2024 Less Than 12 Months 12 Months or More Total (amounts in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale debt securities: Asset-backed securities $ — $ — $ 30,960 $ (1,241) $ 30,960 $ (1,241) Agency-guaranteed residential collateralized mortgage obligations — — 109,456 (7,933) 109,456 (7,933) Agency-guaranteed commercial collateralized mortgage obligations 45,080 (618) — — 45,080 (618) Collateralized loan obligations 37,164 (284) 250,635 (4,483) 287,799 (4,767) Commercial mortgage-backed securities — — 77,074 (1,637) 77,074 (1,637) Corporate notes 59,408 (766) 319,371 (26,637) 378,779 (27,403) Private label collateralized mortgage obligations 175,651 (3,367) 586,700 (33,166) 762,351 (36,533) Total $ 317,303 $ (5,035) $ 1,374,196 $ (75,097) $ 1,691,499 $ (80,132) December 31, 2023 Less Than 12 Months 12 Months or More Total (amounts in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale debt securities: Asset-backed securities $ — $ — $ 64,029 $ (4,027) $ 64,029 $ (4,027) Agency-guaranteed residential collateralized mortgage obligations — — 116,908 (12,681) 116,908 (12,681) Collateralized loan obligations 29,241 (392) 438,551 (10,626) 467,792 (11,018) Commercial mortgage-backed securities — — 121,636 (4,249) 121,636 (4,249) Corporate notes 23,243 (1,147) 424,768 (33,764) 448,011 (34,911) Private label collateralized mortgage obligations 303,750 (11,243) 613,007 (51,417) 916,757 (62,660) Total $ 356,234 $ (12,782) $ 1,778,899 $ (116,764) $ 2,135,133 $ (129,546)
Debt Securities, Available-for-Sale, Allowance for Credit Loss	The following tables present the activity in the allowance for credit losses on AFS debt securities, by major security type, for the periods presented: Three Months Ended September 30, 2024 2023 (amounts in thousands) Asset-backed securities Corporate notes Total Asset-backed securities Corporate notes Total Balance at July 1 $ 367 $ 4,972 $ 5,339 $ 1,563 $ 1,876 $ 3,439 Credit losses on securities for which credit losses were not previously recorded 24 — 24 — 564 564 Credit losses on previously impaired securities — 12 12 442 69 511 Decrease in allowance for credit losses on previously impaired securities (84) (652) (736) (250) (24) (274) Reduction due to sales — — — — (391) (391) Balance at September 30 $ 307 $ 4,332 $ 4,639 $ 1,755 $ 2,094 $ 3,849 Nine Months Ended September 30, 2024 2023 (amounts in thousands) Asset-backed securities Corporate notes Total Asset-backed securities Corporate notes Total Balance at January 1 $ 483 $ 3,469 $ 3,952 $ 578 $ — $ 578 Credit losses on securities for which credit losses were not previously recorded 24 635 659 — 2,485 2,485 Credit losses on previously impaired securities — 613 613 1,488 — 1,488 Decrease in allowance for credit losses on previously impaired securities (200) (385) (585) (311) — (311) Reduction due to sales — — — — (391) (391) Balance at September 30 $ 307 $ 4,332 $ 4,639 $ 1,755 $ 2,094 $ 3,849
Debt Securities, Held-to-Maturity, Credit Quality Indicator	The following table presents the amortized cost of HTM debt securities based on their lowest credit rating available: September 30, 2024 (amounts in thousands) AAA AA Not Rated Total Held to maturity debt securities: Asset-backed securities $ — $ — $ 538,832 $ 538,832 Agency-guaranteed residential mortgage-backed securities — — 6,920 6,920 Agency-guaranteed commercial mortgage-backed securities — — 1,790 1,790 Agency-guaranteed residential collateralized mortgage obligations — — 174,098 174,098 Agency-guaranteed commercial collateralized mortgage obligations — — 159,050 159,050 Private label collateralized mortgage obligations 100,287 9,301 74,159 183,747 Total held to maturity debt securities $ 100,287 $ 9,301 $ 954,849 $ 1,064,437

LOANS HELD FOR SALE (Tables)

LOANS HELD FOR SALE (Tables)	9 Months Ended
	Sep. 30, 2024
Receivable, Held-for-Sale [Abstract]
Composition of Loans Held for Sale	The composition of loans held for sale as of September 30, 2024 and December 31, 2023 was as follows: (amounts in thousands) September 30, 2024 December 31, 2023 Residential mortgage loans, at fair value $ 2,523 $ 1,215 Personal installment loans, at lower of cost or fair value 55,799 151,040 Other installment loans, at fair value 217,098 188,062 Total loans held for sale $ 275,420 $ 340,317

LOANS AND LEASES RECEIVABLE A_2

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES (Tables)	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Schedule of Loans and Leases Receivable	The following table presents loans and leases receivable as of September 30, 2024 and December 31, 2023. (amounts in thousands) September 30, 2024 December 31, 2023 Loans and leases receivable: Commercial: Commercial and industrial: Specialized lending (1) $ 5,468,507 $ 5,006,693 Other commercial and industrial (2) 1,204,426 1,279,147 Multifamily 2,115,978 2,138,622 Commercial real estate owner occupied 981,904 797,319 Commercial real estate non-owner occupied 1,326,591 1,177,650 Construction 174,509 166,393 Total commercial loans and leases receivable 11,271,915 10,565,824 Consumer: Residential real estate 500,786 484,435 Manufactured housing 34,481 38,670 Installment: Personal 453,739 555,533 Other 266,362 319,393 Total consumer loans receivable 1,255,368 1,398,031 Loans and leases receivable 12,527,283 11,963,855 Loans receivable, mortgage finance, at fair value 1,250,413 897,912 Allowance for credit losses on loans and leases (133,158) (135,311) Total loans and leases receivable, net of allowance for credit losses on loans and leases (3) $ 13,644,538 $ 12,726,456 (1) Includes direct finance and sales-type equipment leases of $254.3 million and $205.7 million at September 30, 2024 and December 31, 2023, respectively. (2) Includes PPP loans of $30.5 million and $74.7 million at September 30, 2024 and December 31, 2023, respectively. (3) Includes deferred (fees) costs and unamortized (discounts) premiums, net of $(18.1) million and $(22.7) million at September 30, 2024 and December 31, 2023, respectively.
Loans and Leases Receivable by Loan Type and Performance Status	The following tables summarize loans and leases receivable by loan and lease type and performance status as of September 30, 2024 and December 31, 2023: September 30, 2024 (amounts in thousands) 30-59 Days past due (1) 60-89 Days past due (1) 90 Days or more past due (2) Total past due Loans and leases not past due (3)(4) Total loans and leases (4) Commercial and industrial, including specialized lending $ 540 $ 660 $ 3,519 $ 4,719 $ 6,637,746 $ 6,642,465 Multifamily — — 11,834 11,834 2,104,144 2,115,978 Commercial real estate owner occupied — 391 8,591 8,982 972,922 981,904 Commercial real estate non-owner occupied 293 701 62 1,056 1,325,535 1,326,591 Construction — — — — 174,509 174,509 Residential real estate 3,320 5,944 3,995 13,259 487,527 500,786 Manufactured housing 623 200 2,263 3,086 31,395 34,481 Installment 5,266 7,297 6,328 18,891 701,210 720,101 Total $ 10,042 $ 15,193 $ 36,592 $ 61,827 $ 12,434,988 $ 12,496,815 December 31, 2023 (amounts in thousands) 30-59 Days past due (1) 60-89 Days past due (1) 90 Days or more past due (2) Total past due Loans and leases not past due (3)(4) Total loans and leases (4) Commercial and industrial, including specialized lending $ 1,516 $ 322 $ 4,153 $ 5,991 $ 6,205,114 $ 6,211,105 Multifamily 16,003 — — 16,003 2,122,619 2,138,622 Commercial real estate owner occupied 449 3,814 5,827 10,090 787,229 797,319 Commercial real estate non-owner occupied 16,653 — — 16,653 1,160,997 1,177,650 Construction — — — — 166,393 166,393 Residential real estate 10,504 2,255 3,764 16,523 467,912 484,435 Manufactured housing 1,152 343 2,869 4,364 34,306 38,670 Installment 9,255 7,866 7,211 24,332 850,594 874,926 Total $ 55,532 $ 14,600 $ 23,824 $ 93,956 $ 11,795,164 $ 11,889,120 (1) Includes past due loans and leases that are accruing interest because collection is considered probable. (2) Includes loans amounting to $0.4 million and $0.5 million as of September 30, 2024 and December 31, 2023, respectively, that are still accruing interest because collection is considered probable. (3) Loans and leases where next payment due is less than 30 days from the report date. The tables exclude PPP loans of $30.5 million, of which $0.5 million were 30-59 days past due and $17.1 million were 60 days or more past due as of September 30, 2024, and PPP loans of $74.7 million, of which $0.7 million were 30-59 days past due and $48.5 million were 60 days or more past due as of December 31, 2023. Claims for guarantee payments are submitted to the SBA for eligible PPP loans that are more than 60 days past due. (4) Includes PCD loans of $127.0 million and $157.2 million at September 30, 2024 and December 31, 2023, respectively.
Amortized Cost of Loans and Leases on Nonaccrual Status	The following table presents the amortized cost of loans and leases held for investment on nonaccrual status. September 30, 2024 December 31, 2023 (amounts in thousands) Nonaccrual loans with no related allowance Nonaccrual loans with related allowance Total nonaccrual loans Nonaccrual loans with no related allowance Nonaccrual loans with related allowance Total nonaccrual loans Commercial and industrial, including specialized lending $ 4,598 $ 17 $ 4,615 $ 3,365 $ 1,071 $ 4,436 Multifamily 11,834 — 11,834 — — — Commercial real estate owner occupied 4,590 4,023 8,613 5,869 — 5,869 Commercial real estate non-owner occupied 763 — 763 — — — Residential real estate 7,467 530 7,997 6,685 117 6,802 Manufactured housing — 1,869 1,869 — 2,331 2,331 Installment — 6,328 6,328 — 7,211 7,211 Total $ 29,252 $ 12,767 $ 42,019 $ 15,919 $ 10,730 $ 26,649
Schedule of Allowance for Credit Losses on Loans and Leases	The changes in the ACL on loans and leases by loan and lease type for the three and nine months ended September 30, 2024 and 2023 are presented in the tables below. (amounts in thousands) Commercial and industrial (1)(2) Multifamily Commercial real estate owner occupied Commercial real estate non-owner occupied Construction Residential real estate Manufactured housing Installment Total Three Months Ended Ending Balance, June 30, 2024 $ 23,721 $ 20,652 $ 8,431 $ 17,966 $ 1,856 $ 5,884 $ 4,094 $ 49,832 $ 132,436 Charge-offs (6,538) (2,167) (4) — — (19) — (12,496) (21,224) Recoveries 1,482 — — — 3 40 — 2,655 4,180 Provision (benefit) for credit losses on loans and leases 6,526 (395) 2,486 (663) (253) (68) (13) 10,146 17,766 Ending Balance, $ 25,191 $ 18,090 $ 10,913 $ 17,303 $ 1,606 $ 5,837 $ 4,081 $ 50,137 $ 133,158 Nine Months Ended Ending Balance, $ 23,503 $ 16,343 $ 9,882 $ 16,859 $ 1,482 $ 6,586 $ 4,239 $ 56,417 $ 135,311 Charge-offs (19,282) (4,073) (26) — — (38) — (43,356) (66,775) Recoveries 4,889 — — — 10 61 — 8,092 13,052 Provision (benefit) for credit losses on loans and leases 16,081 5,820 1,057 444 114 (772) (158) 28,984 51,570 Ending Balance, $ 25,191 $ 18,090 $ 10,913 $ 17,303 $ 1,606 $ 5,837 $ 4,081 $ 50,137 $ 133,158 (amounts in thousands) Commercial and industrial (1)(2) Multifamily Commercial real estate owner occupied Commercial real estate non-owner occupied Construction Residential real estate Manufactured housing Installment Total Three Months Ended Ending Balance, June 30, 2023 $ 29,092 $ 15,400 $ 10,215 $ 13,495 $ 2,639 $ 6,846 $ 4,338 $ 57,631 $ 139,656 Charge-offs (9,008) (1,999) (39) — — (42) — (18,932) (30,020) Recoveries 6,034 — — — — 29 — 6,459 12,522 Provision (benefit) for credit losses on loans and leases (1,132) 2,469 187 2,324 491 (31) (258) 13,005 17,055 Ending Balance, $ 24,986 $ 15,870 $ 10,363 $ 15,819 $ 3,130 $ 6,802 $ 4,080 $ 58,163 $ 139,213 Nine Months Ended Ending Balance, $ 17,582 $ 14,541 $ 6,454 $ 11,219 $ 1,913 $ 6,094 $ 4,430 $ 68,691 $ 130,924 Allowance for credit losses on FDIC PCD loans, net of charge-offs (3) 2,576 — — — — — — — 2,576 Charge-offs (9,600) (3,447) (39) (4,527) — (69) — (52,031) (69,713) Recoveries 6,439 — 34 27 116 34 — 11,350 18,000 Provision (benefit) for credit losses on loans and leases 7,989 4,776 3,914 9,100 1,101 743 (350) 30,153 57,426 Ending Balance, $ 24,986 $ 15,870 $ 10,363 $ 15,819 $ 3,130 $ 6,802 $ 4,080 $ 58,163 $ 139,213 (1) Includes specialized lending. (2) PPP loans include an embedded credit enhancement from the SBA, which guarantees 100% of the principal and interest owed by the borrower provided that the SBA’s eligibility criteria are met. As a result, the eligible PPP loans do not have an ACL. (3) Represents $8.7 million of allowance for credit losses on PCD loans recognized upon acquisition of a venture banking loan portfolio (included within specialized lending) from the FDIC on June 15, 2023, net of $6.2 million of charge-offs for certain of these PCD loans upon acquisition.
Summary of Loans Modified in Troubled Debt Restructurings and Related Recorded Investment	The following table presents the amortized cost of loans that were modified to borrowers experiencing financial difficulty for the three and nine months ended September 30, 2024 and 2023, disaggregated by class of financing receivable and type of modification granted. Three Months Ended September 30, 2024 (dollars in thousands) Interest Rate Reduction Term Extension Payment Deferral Debt Forgiveness Interest Rate Reduction and Term Extension Total Percentage of Total by Financing Class Commercial and industrial, including specialized lending $ — $ — $ 4,800 $ — $ — $ 4,800 0.07 % Manufactured housing — 18 — — 79 97 0.28 % Personal installment 266 1,770 55 37 — 2,128 0.47 % Total $ 266 $ 1,788 $ 4,855 $ 37 $ 79 $ 7,025 Three Months Ended September 30, 2023 (dollars in thousands) Term Extension Payment Deferral Debt Forgiveness Interest Rate Reduction and Term Extension Total Percentage of Total by Financing Class Manufactured housing $ — $ — $ — $ 99 $ 99 0.25 % Personal installment 3,863 210 28 — 4,101 0.42 % Total $ 3,863 $ 210 $ 28 $ 99 $ 4,200 Nine Months Ended September 30, 2024 (dollars in thousands) Interest Rate Reduction Term Extension Payment Deferral Debt Forgiveness Interest Rate Reduction and Term Extension Total Percentage of Total by Financing Class Commercial and industrial, including specialized lending $ — $ 2,000 $ 8,049 $ — $ — $ 10,049 0.15 % Multifamily — — 10,713 — — 10,713 0.51 % Residential real estate — — 52 — — 52 0.01 % Manufactured housing — 96 — — 128 224 0.65 % Personal installment 266 4,970 178 93 — 5,507 1.21 % Total $ 266 $ 7,066 $ 18,992 $ 93 $ 128 $ 26,545 Nine Months Ended September 30, 2023 (dollars in thousands) Term Extension Payment Deferral Debt Forgiveness Interest Rate Reduction and Term Extension Total Percentage of Total by Financing Class Commercial real estate owner occupied $ 169 $ — $ — $ — $ 169 0.02 % Manufactured housing 6 — — 113 119 0.30 % Personal installment 10,910 442 222 — 11,574 1.20 % Total $ 11,085 $ 442 $ 222 $ 113 $ 11,862 The following table summarizes the impacts of loan modifications made to borrowers experiencing financial difficulty for the three and nine months ended September 30, 2024 and 2023. Three Months Ended September 30, 2024 Three Months Ended September 30, 2023 Weighted Average Weighted Average (dollars in thousands) Interest Rate Reduction (%) Term Extension Payment Deferral Debt Forgiven Interest Rate Reduction (%) Term Extension Payment Deferral Debt Forgiven Commercial and industrial, including specialized lending —% 0 10 $ — —% 0 0 $ — Manufactured housing 3.8 115 0 — 4.4 31 0 — Personal installment 13.6 5 7 12 — 6 6 20 Nine Months Ended September 30, 2024 Nine Months Ended September 30, 2023 Weighted Average Weighted Average (dollars in thousands) Interest Rate Reduction (%) Term Extension Payment Deferral Debt Forgiven Interest Rate Reduction (%) Term Extension Payment Deferral Debt Forgiven Commercial and industrial, including specialized lending — % 1 8 $ — — % 0 0 $ — Multifamily — 0 5 — — 0 0 — Commercial real estate owner occupied — 0 0 — — 4 0 — Residential real estate — 0 5 — — 0 0 — Manufactured housing 4.0 78 0 — 4.3 30 0 — Personal installment 13.6 5 7 153 — 6 6 183 The performance of loans made to borrowers experiencing financial difficulty in which modifications were made is closely monitored to understand the effectiveness of modification efforts. Loans are considered to be in payment default at 90 days or more past due. The following table presents an aging analysis of loan modifications made to borrowers experiencing financial difficulty in the twelve months ended September 30, 2024 and the nine months ended ended September 30, 2023. September 30, 2024 (dollars in thousands) 30-59 Days past due 60-89 Days past due 90 Days or more past due Current Total Commercial and industrial, including specialized lending $ — $ — $ 230 $ 22,395 $ 22,625 Multifamily — — — 10,713 10,713 Residential real estate — — — 52 52 Manufactured housing 19 24 37 269 349 Personal installment 436 331 665 7,393 8,825 Total $ 455 $ 355 $ 932 $ 40,822 $ 42,564 September 30, 2023 (1) (dollars in thousands) 30-59 Days past due 60-89 Days past due 90 Days or more past due Current Total Commercial real estate owner occupied $ — $ — $ 169 $ — $ 169 Manufactured housing — — — 119 119 Personal installment 837 565 354 9,820 11,576 Total $ 837 $ 565 $ 523 $ 9,939 $ 11,864 (1) Customers adopted ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures (“ASU 2022-02”) effective January 1, 2023, therefore, the September 30, 2023 balances only include loans since ASU 2022-02 became effective.
Credit Ratings of Covered and Non-Covered Loan Portfolio	The following tables present the credit ratings of loans and leases receivable and current period gross write-offs as of September 30, 2024 and December 31, 2023. Term Loans Amortized Cost Basis by Origination Year as of (amounts in thousands) 2024 2023 2022 2021 2020 Prior Revolving loans amortized cost basis Revolving loans converted to term Total Commercial and industrial loans and leases, including specialized lending: Pass $ 1,288,705 $ 790,316 $ 1,591,974 $ 328,477 $ 114,778 $ 32,650 $ 1,952,229 $ 392,242 $ 6,491,371 Special mention 12,755 250 30,397 3,926 — 67 29,747 4,417 81,559 Substandard — 958 7,832 12,076 3,576 37,379 4,076 3,638 69,535 Doubtful — — — — — — — — — Total commercial and industrial loans and leases $ 1,301,460 $ 791,524 $ 1,630,203 $ 344,479 $ 118,354 $ 70,096 $ 1,986,052 $ 400,297 $ 6,642,465 Commercial and industrial loans and leases charge-offs: Three Months Ended September 30, 2024 (1) $ 94 $ — $ 13 $ 52 $ 742 $ 5,637 $ — $ — $ 6,538 Nine Months Ended September 30, 2024 (1) 312 702 5,685 4,147 2,429 6,007 — — 19,282 Multifamily loans: Pass $ 76,380 $ 823 $ 1,202,986 $ 301,976 $ 125,476 $ 303,992 $ — $ — $ 2,011,633 Special mention — — 6,770 — — 42,662 — — 49,432 Substandard — — — — — 54,913 — — 54,913 Doubtful — — — — — — — — — Total multifamily loans $ 76,380 $ 823 $ 1,209,756 $ 301,976 $ 125,476 $ 401,567 $ — $ — $ 2,115,978 Multifamily loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ 2,167 $ — $ 2,167 Nine Months Ended September 30, 2024 — — — — — 4,073 — — 4,073 Commercial real estate owner occupied loans: Pass $ 218,625 $ 64,100 $ 238,103 $ 197,298 $ 52,820 $ 147,520 $ 7,640 $ 74 $ 926,180 Special mention — — — — — 10,924 — 11,197 22,121 Substandard — 2,944 703 15,310 — 14,646 — — 33,603 Doubtful — — — — — — — — — Total commercial real estate owner occupied loans $ 218,625 $ 67,044 $ 238,806 $ 212,608 $ 52,820 $ 173,090 $ 7,640 $ 11,271 $ 981,904 Commercial real estate owner occupied loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ 4 $ — $ — $ 4 Nine Months Ended September 30, 2024 — — — — — 26 — — 26 Commercial real estate non-owner occupied loans: Pass $ 100,123 $ 30,427 $ 413,675 $ 97,555 $ 182,789 $ 424,192 $ 214 $ — $ 1,248,975 Special mention — 12,000 4,308 — — 438 — — 16,746 Substandard — — — — 701 60,169 — — 60,870 Doubtful — — — — — — — — — Total commercial real estate non-owner occupied loans $ 100,123 $ 42,427 $ 417,983 $ 97,555 $ 183,490 $ 484,799 $ 214 $ — $ 1,326,591 Commercial real estate non-owner occupied loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2024 — — — — — — — — — Construction loans: Pass $ 9,235 $ 18,651 $ 133,969 $ — $ — $ 4,486 $ — $ — $ 166,341 Special mention — 8,168 — — — — — — 8,168 Substandard — — — — — — — — — Doubtful — — — — — — — — — Total construction loans $ 9,235 $ 26,819 $ 133,969 $ — $ — $ 4,486 $ — $ — $ 174,509 Term Loans Amortized Cost Basis by Origination Year as of (amounts in thousands) 2024 2023 2022 2021 2020 Prior Revolving loans amortized cost basis Revolving loans converted to term Total Construction loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2024 — — — — — — — — — Total commercial loans and leases receivable $ 1,705,823 $ 928,637 $ 3,630,717 $ 956,618 $ 480,140 $ 1,134,038 $ 1,993,906 $ 411,568 $ 11,241,447 Total commercial loans and leases receivable charge-offs: Three Months Ended September 30, 2024 $ 94 $ — $ 13 $ 52 $ 742 $ 7,808 $ — $ — $ 8,709 Nine Months Ended September 30, 2024 312 702 5,685 4,147 2,429 10,106 — — 23,381 Residential real estate loans: Performing $ 41,200 $ 21,946 $ 165,563 $ 124,381 $ 5,957 $ 80,700 $ 53,214 $ — $ 492,961 Non-performing 141 280 1,394 1,695 233 4,082 — — 7,825 Total residential real estate loans $ 41,341 $ 22,226 $ 166,957 $ 126,076 $ 6,190 $ 84,782 $ 53,214 $ — $ 500,786 Residential real estate loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ 19 $ — $ — $ 19 Nine Months Ended September 30, 2024 — — — — — 38 — — 38 Manufactured housing loans: Performing $ — $ — $ — $ — $ — $ 32,969 $ — $ — $ 32,969 Non-performing — — — — — 1,512 — — 1,512 Total manufactured housing loans $ — $ — $ — $ — $ — $ 34,481 $ — $ — $ 34,481 Manufactured housing loans charge-offs: Three Months Ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2024 — — — — — — — — — Installment loans: Performing $ 81,762 $ 174,647 $ 240,433 $ 109,349 $ 35,925 $ 28,770 $ 43,757 $ 8 $ 714,651 Non-performing 39 1,880 1,552 1,119 308 442 110 — 5,450 Total installment loans $ 81,801 $ 176,527 $ 241,985 $ 110,468 $ 36,233 $ 29,212 $ 43,867 $ 8 $ 720,101 Installment loans charge-offs: Three Months Ended September 30, 2024 $ 425 $ 2,432 $ 5,219 $ 3,311 $ 553 $ 556 $ — $ — $ 12,496 Nine Months Ended September 30, 2024 2,307 5,837 17,450 12,099 2,286 3,377 — — 43,356 Total consumer loans $ 123,142 $ 198,753 $ 408,942 $ 236,544 $ 42,423 $ 148,475 $ 97,081 $ 8 $ 1,255,368 Total consumer loans charge-offs: Three Months Ended September 30, 2024 $ 425 $ 2,432 $ 5,219 $ 3,311 $ 553 $ 575 $ — $ — $ 12,515 Nine Months Ended September 30, 2024 2,307 5,837 17,450 12,099 2,286 3,415 — — 43,394 Loans and leases receivable $ 1,828,965 $ 1,127,390 $ 4,039,659 $ 1,193,162 $ 522,563 $ 1,282,513 $ 2,090,987 $ 411,576 $ 12,496,815 Loans and leases receivable charge-offs: Three Months Ended September 30, 2024 $ 519 $ 2,432 $ 5,232 $ 3,363 $ 1,295 $ 8,383 $ — $ — $ 21,224 Nine Months Ended September 30, 2024 $ 2,619 $ 6,539 $ 23,135 $ 16,246 $ 4,715 $ 13,521 $ — $ — $ 66,775 (1) Charge-offs for the three and nine months ended September 30, 2024 included $0.8 million and $5.0 million, respectively, of commercial and industrial loans originated under the PPP that were subsequently determined to be ineligible for SBA forgiveness and guarantee and were ultimately deemed uncollectible. Term Loans Amortized Cost Basis by Origination Year as of (amounts in thousands) 2023 2022 2021 2020 2019 Prior Revolving loans amortized cost basis Revolving loans converted to term Total Commercial and industrial loans and leases, including specialized lending: Pass $ 1,184,923 $ 1,909,592 $ 483,039 $ 170,384 $ 59,213 $ 63,480 $ 1,722,559 $ 384,947 $ 5,978,137 Special mention 18,000 3,377 5,127 1,986 — 595 7,916 2,903 39,904 Substandard 14,738 39,258 61,533 26,660 4,803 42,062 4,010 — 193,064 Doubtful — — — — — — — — — Total commercial and industrial loans and leases $ 1,217,661 $ 1,952,227 $ 549,699 $ 199,030 $ 64,016 $ 106,137 $ 1,734,485 $ 387,850 $ 6,211,105 Commercial and industrial loans and leases charge-offs: For the Year Ended December 31, 2023 (1)(2) $ 1,483 $ 381 $ 3,169 $ 10,348 $ 24 $ 1,510 $ — $ — $ 16,915 Multifamily loans: Pass $ 845 $ 1,229,198 $ 371,016 $ 127,493 $ 43,046 $ 253,806 $ — $ — $ 2,025,404 Special mention — — — — 6,468 67,035 — — 73,503 Substandard — — — — — 39,715 — — 39,715 Doubtful — — — — — — — — — Total multifamily loans $ 845 $ 1,229,198 $ 371,016 $ 127,493 $ 49,514 $ 360,556 $ — $ — $ 2,138,622 Multifamily loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ 3,574 $ — $ — $ 3,574 Commercial real estate owner occupied loans: Pass $ 41,011 $ 254,878 $ 180,289 $ 77,821 $ 44,382 $ 120,248 $ — $ 11,318 $ 729,947 Special mention — — 15,432 — 35,691 47 — — 51,170 Substandard — — — — 347 15,855 — — 16,202 Doubtful — — — — — — — — — Total commercial real estate owner occupied loans $ 41,011 $ 254,878 $ 195,721 $ 77,821 $ 80,420 $ 136,150 $ — $ 11,318 $ 797,319 Commercial real estate owner occupied loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ 39 $ — $ — $ 39 Commercial real estate non-owner occupied loans: Pass $ 12,906 $ 325,881 $ 109,521 $ 152,227 $ 88,586 $ 367,996 $ — $ — $ 1,057,117 Special mention — — — 20,702 — 9,148 — — 29,850 Substandard — 10,910 — — 8,113 71,660 — — 90,683 Doubtful — — — — — — — — — Total commercial real estate non-owner occupied loans $ 12,906 $ 336,791 $ 109,521 $ 172,929 $ 96,699 $ 448,804 $ — $ — $ 1,177,650 Commercial real estate non-owner occupied loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ 4,527 $ — $ — $ 4,527 Construction loans: Pass $ 17,594 $ 138,797 $ 2,567 $ — $ — $ 4,580 $ — $ 1,100 $ 164,638 Special mention 1,755 — — — — — — — 1,755 Substandard — — — — — — — — — Doubtful — — — — — — — — — Total construction loans $ 19,349 $ 138,797 $ 2,567 $ — $ — $ 4,580 $ — $ 1,100 $ 166,393 Construction loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ — $ — $ — $ — Total commercial loans and leases receivable $ 1,291,772 $ 3,911,891 $ 1,228,524 $ 577,273 $ 290,649 $ 1,056,227 $ 1,734,485 $ 400,268 $ 10,491,089 Term Loans Amortized Cost Basis by Origination Year as of (amounts in thousands) 2023 2022 2021 2020 2019 Prior Revolving loans amortized cost basis Revolving loans converted to term Total Total commercial loans and leases receivable charge-offs: For the Year Ended December 31, 2023 $ 1,483 $ 381 $ 3,169 $ 10,348 $ 24 $ 9,650 $ — $ — $ 25,055 Residential real estate loans: Performing $ 22,613 $ 173,424 $ 131,621 $ 6,458 $ 15,508 $ 71,433 $ 56,844 $ — $ 477,901 Non-performing — 350 1,236 229 545 3,993 181 — 6,534 Total residential real estate loans $ 22,613 $ 173,774 $ 132,857 $ 6,687 $ 16,053 $ 75,426 $ 57,025 $ — $ 484,435 Residential real estate loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ 69 $ — $ — $ 69 Manufactured housing loans: Performing $ — $ — $ — $ — $ 98 $ 36,464 $ — $ — $ 36,562 Non-performing — — — — — 2,108 — — 2,108 Total manufactured housing loans $ — $ — $ — $ — $ 98 $ 38,572 $ — $ — $ 38,670 Manufactured housing loans charge-offs: For the Year Ended December 31, 2023 $ — $ — $ — $ — $ — $ — $ — $ — $ — Installment loans: Performing $ 253,958 $ 307,566 $ 158,381 $ 50,354 $ 39,953 $ 3,448 $ 51,480 $ — $ 865,140 Non-performing 2,634 4,102 1,751 546 477 86 190 — 9,786 Total installment loans $ 256,592 $ 311,668 $ 160,132 $ 50,900 $ 40,430 $ 3,534 $ 51,670 $ — $ 874,926 Installment loans charge-offs: For the Year Ended December 31, 2023 $ 7,728 $ 24,605 $ 23,984 $ 5,590 $ 6,797 $ 1,238 $ — $ — $ 69,942 Total consumer loans $ 279,205 $ 485,442 $ 292,989 $ 57,587 $ 56,581 $ 117,532 $ 108,695 $ — $ 1,398,031 Total consumer loans charge-offs: For the Year Ended December 31, 2023 $ 7,728 $ 24,605 $ 23,984 $ 5,590 $ 6,797 $ 1,307 $ — $ — $ 70,011 Loans and leases receivable $ 1,570,977 $ 4,397,333 $ 1,521,513 $ 634,860 $ 347,230 $ 1,173,759 $ 1,843,180 $ 400,268 $ 11,889,120 Loans and leases receivable charge-offs: For the Year Ended December 31, 2023 $ 9,211 $ 24,986 $ 27,153 $ 15,938 $ 6,821 $ 10,957 $ — $ — $ 95,066 (1) Excludes $6.2 million of charge-offs for certain PCD loans against $8.7 million of allowance for credit losses on PCD loans recognized upon acquisition of a venture banking loan portfolio (included within specialized lending) from the FDIC on June 15, 2023. These PCD loans were originated in years 2016 to 2022. (2) Charge-offs for the year ended December 31, 2023 included $10.7 million of commercial and industrial loans originated under the PPP that were subsequently determined to be ineligible for SBA forgiveness and guarantee and were ultimately deemed uncollectible.
Schedule of Loan Purchases and Sales	Purchases and sales of loans held for investment were as follows for the three and nine months ended September 30, 2024 and 2023: Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) 2024 2023 2024 2023 Purchases (1) Specialized lending $ — $ — $ — $ 631,252 Other commercial and industrial 602 4,977 8,005 15,285 Commercial real estate owner occupied — — — 2,867 Residential real estate — — — 4,238 Personal installment (2) 69,976 — 113,217 — Other installment (2) — 96,758 — 96,758 Total $ 70,578 $ 101,735 $ 121,222 $ 750,400 Sales (3) Specialized lending (4) $ — $ — $ — $ 287,185 Other commercial and industrial (5) — 6,725 23,708 54,083 Commercial real estate owner occupied (5) — 5,671 — 24,522 Commercial real estate non-owner occupied — — — 16,000 Personal installment 53,021 — 53,021 — Other installment — — — 154,042 Total $ 53,021 $ 12,396 $ 76,729 $ 535,832 (1) Amounts reported in the above table are the unpaid principal balance at time of purchase. The purchase price was 95.9% and 100.0% of the loans’ unpaid principal balance for the three months ended September 30, 2024 and 2023, respectively. The purchase price was 97.5% and 87.7% of the loans’ unpaid principal balance for the nine months ended September 30, 2024 and 2023, respectively. (2) Installment loan purchases for the three and nine months ended September 30, 2024 consist of third-party originated unsecured consumer loans. None of the loans held for investment are considered sub-prime at the time of origination. Customers considers sub-prime borrowers to be those with FICO scores below 660. (3) For the three months ended September 30, 2024 and 2023, sales of loans held for investment resulted in no gain or loss and net losses of $0.2 million, respectively, included in net gain (loss) on sale of loans and leases in the consolidated statements of income. For the nine months ended September 30, 2024 and 2023, sales of loans held for investment resulted in net losses of $0.2 million and net gains of $0.2 million, respectively. (4) Includes a loss of $5.0 million from the sale of $670.0 million of short-term syndicated capital call lines of credit ($280.7 million of loans held for investment in unpaid principal balance and $389.3 million of unfunded loan commitments) included in the consolidated statement of income for the nine months ended September 30, 2023. (5) Primarily sales of SBA loans for the three and nine months ended September 30, 2023.

LEASES (Tables)

LEASES (Tables)	9 Months Ended
	Sep. 30, 2024
Leases [Abstract]
Lessee, Summary of Right-of-Use Assets and Lease Liabilities	The following table summarizes operating lease ROU assets and operating lease liabilities and their corresponding balance sheet location: (amounts in thousands) Classification September 30, 2024 December 31, 2023 ASSETS Operating lease ROU assets Other assets $ 35,901 $ 15,644 LIABILITIES Operating lease liabilities Other liabilities $ 37,993 $ 18,048
Lease, Cost	The following table summarizes operating lease cost and its corresponding income statement location for the periods presented: Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) Classification 2024 2023 2024 2023 Operating lease cost (1) Occupancy expenses $ 1,792 $ 1,260 $ 4,277 $ 3,775 (1) There were no variable lease costs for the three and nine months ended September 30, 2024 and 2023, and sublease income for operating leases was immaterial.
Maturities of Non-cancelable Operating Lease Liabilities	Maturities of non-cancelable operating lease liabilities were as follows at September 30, 2024: (amounts in thousands) September 30, 2024 2024 $ 1,507 2025 5,668 2026 6,328 2027 5,833 2028 5,207 Thereafter 21,187 Total minimum payments 45,730 Less: interest 7,737 Present value of lease liabilities $ 37,993
Summary of Lease Term and Discount Rate for Operating Leases	The following table summarizes the weighted average remaining lease term and discount rate for Customers’ operating leases at September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Weighted average remaining lease term (years) Operating leases 8.6 years 5.6 years Weighted average discount rate Operating leases 4.08 % 3.28 %
Lessor, Lease Receivables and Investment in Operating Leases and their Corresponding Balance Sheet Location	The following table summarizes lease receivables and investment in operating leases and their corresponding balance sheet location at September 30, 2024 and December 31, 2023: (amounts in thousands) Classification September 30, 2024 December 31, 2023 ASSETS Direct financing and sales-type leases Lease receivables Loans and leases receivable $ 243,859 $ 190,559 Guaranteed residual assets Loans and leases receivable 21,878 15,783 Unguaranteed residual assets Loans and leases receivable 10,467 10,010 Deferred initial direct costs Loans and leases receivable 1,348 1,213 Unearned income Loans and leases receivable (23,208) (11,891) Net investment in direct financing and sales-type leases $ 254,344 $ 205,674 Operating leases Investment in operating leases Other assets $ 287,575 $ 282,208 Accumulated depreciation Other assets (88,636) (77,672) Deferred initial direct costs Other assets 957 1,192 Net investment in operating leases 199,896 205,728 Total lease assets $ 454,240 $ 411,402
Sales-type and Direct Financing Leases, Lease Receivable, Maturity	Maturities of operating and direct financing and sales-type lease receivables were as follows at September 30, 2024: (amounts in thousands) Operating leases Direct financing and sales-type leases 2024 $ 11,314 $ 19,302 2025 41,979 63,374 2026 47,551 56,173 2027 34,377 47,608 2028 57,173 29,881 Thereafter 35,968 27,521 Total minimum payments $ 228,362 243,859 Less: interest 23,208 Present value of lease receivables $ 220,651
Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity	Maturities of operating and direct financing and sales-type lease receivables were as follows at September 30, 2024: (amounts in thousands) Operating leases Direct financing and sales-type leases 2024 $ 11,314 $ 19,302 2025 41,979 63,374 2026 47,551 56,173 2027 34,377 47,608 2028 57,173 29,881 Thereafter 35,968 27,521 Total minimum payments $ 228,362 243,859 Less: interest 23,208 Present value of lease receivables $ 220,651

DEPOSITS (Tables)

DEPOSITS (Tables)	9 Months Ended
	Sep. 30, 2024
Deposit [Abstract]
Components of Deposits	The components of deposits at September 30, 2024 and December 31, 2023 were as follows: September 30, 2024 December 31, 2023 (amounts in thousands) Demand, non-interest bearing $ 4,670,809 $ 4,422,494 Demand, interest bearing 5,606,500 5,580,527 Savings, including money market deposit accounts 5,360,996 4,629,336 Time 2,431,084 3,287,879 Total deposits $ 18,069,389 $ 17,920,236
Schedule of Time Deposit Maturities	The scheduled maturities for time deposits at September 30, 2024 were as follows: (amounts in thousands) September 30, 2024 2024 $ 145,935 2025 771,882 2026 550,209 2027 305,184 2028 397,761 Thereafter 260,113 Total time deposits $ 2,431,084

BORROWINGS (Tables)

BORROWINGS (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Summary of Bancorp's Short-term Borrowings	The following is a summary of additional information relating to Customers’ short-term debt: (dollars in thousands) September 30, 2024 (1) December 31, 2023 (2) FRB advances Maximum outstanding at any month end $ — $ — Average balance during the period — 120,099 Weighted-average interest rate during the period — % 5.23 % FHLB advances Maximum outstanding at any month end 150,000 — Average balance during the period 11,496 87,407 Weighted-average interest rate during the period 5.74 % 5.16 % Federal funds purchased Maximum outstanding at any month end — — Average balance during the period — 3,781 Weighted-average interest rate during the period — % 4.97 % (1) For the nine months ended September 30, 2024. (2) For the year ended December 31, 2023.
Schedule of Long-term Debt	Long-term FHLB and FRB advances at September 30, 2024 and December 31, 2023 were as follows: September 30, 2024 December 31, 2023 (dollars in thousands) Amount Rate Amount Rate FHLB advances (1) $ 1,117,229 (2) 4.24 % (3) $ 1,203,207 3.91 % Total long-term FHLB and FRB advances $ 1,117,229 $ 1,203,207 (1) Amounts reported in the above table include fixed rate long-term advances from FHLB of $950.0 million with maturities ranging from March 2025 to March 2028, and variable rate long-term advances from FHLB of $155.0 million with maturities ranging from March 2028 to June 2029 with a returnable option that can be repaid without penalty on certain predetermined dates at Customers Bank's option, at September 30, 2024. (2) Includes $12.2 million and $3.2 million of unamortized basis adjustments from interest rate swaps designated as fair value hedges of long-term advances from FHLB at September 30, 2024 and December 31, 2023, respectively. Refer to NOTE 14 — DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES for additional information. (3) Excludes the effect of interest rate swaps designated as fair value hedges of long-term advances from FHLB. Maturities of long-term FHLB advances were as follows at September 30, 2024: September 30, 2024 (dollars in thousands) Amount (1) Rate 2024 $ — — % 2025 200,000 4.45 % 2026 200,000 4.32 % 2027 450,000 3.70 % 2028 180,000 4.75 % Thereafter 75,000 5.55 % Total long-term FHLB advances $ 1,105,000 (1) Amounts reported in the above table include variable rate long-term advances from FHLB of $155.0 million with maturities ranging from March 2028 to June 2029 with a returnable option that can be repaid without penalty on certain predetermined dates at Customers Bank's option. The maximum borrowing capacity with the FHLB and FRB at September 30, 2024 and December 31, 2023 was as follows: (amounts in thousands) September 30, 2024 December 31, 2023 Total maximum borrowing capacity with the FHLB $ 3,565,068 $ 3,474,347 Total maximum borrowing capacity with the FRB 4,180,824 3,436,000 Qualifying loans and securities serving as collateral against FHLB and FRB advances 9,508,135 8,575,137 Senior and Subordinated Debt Long-term senior notes and subordinated debt at September 30, 2024 and December 31, 2023 were as follows: (dollars in thousands) Carrying Amount Issued by Ranking September 30, 2024 December 31, 2023 Rate Issued Amount Date Issued Maturity Price Customers Bancorp Senior (1) $ 99,033 $ 98,928 2.875 % $ 100,000 August 2021 August 2031 100.000 % Customers Bancorp Senior — 24,912 4.500 % 25,000 September 2019 September 2024 100.000 % Total other borrowings $ 99,033 $ 123,840 Customers Bancorp Subordinated (2)(3) $ 72,902 $ 72,766 5.375 % $ 74,750 December 2019 December 2034 100.000 % Customers Bank Subordinated (2)(4) 109,537 109,464 6.125 % 110,000 June 2014 June 2029 100.000 % Total subordinated debt $ 182,439 $ 182,230 (1) The senior notes will bear an annual fixed rate of 2.875% until August 15, 2026. From August 15, 2026 until maturity, the notes will bear an annual interest rate equal to a benchmark rate, which is expected to be the three-month term SOFR (2) The subordinated notes qualify as Tier 2 capital for regulatory capital purposes. (3) Customers Bancorp has the ability to call the subordinated notes, in whole, or in part, at a redemption price equal to 100% of the principal balance at certain times on or after December 30, 2029. (4)

SHAREHOLDERS_ EQUITY (Tables)

SHAREHOLDERS’ EQUITY (Tables)	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Schedule of Stock by Class	The table below summarizes Customers’ issuances of preferred stock that remain outstanding at September 30, 2024 and December 31, 2023 and the dividends paid per share. (amounts in thousands except share and per share data) Shares at Carrying value at Initial Fixed Rate Date at which dividend rate becomes floating and earliest redemption date Floating rate of Three-Month SOFR (2) Plus: Dividend Paid Per Share in 2024 (1) Fixed-to-floating rate: Issue Date September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Series E April 28, 2016 2,300,000 2,300,000 $ 55,593 $ 55,593 6.45 % June 15, 2021 5.140 % $ 2.06 Series F September 16, 2016 3,400,000 3,400,000 82,201 82,201 6.00 % December 15, 2021 4.762 % $ 1.99 Totals 5,700,000 5,700,000 $ 137,794 $ 137,794 (1) For the nine months ended September 30, 2024. (2) Pursuant to the Adjustable Interest Rate (LIBOR) Act enacted by Congress on March 15, 2022, Customers substituted three-month term SOFR plus a tenor spread adjustment of 26.161 basis points for three-month LIBOR as the benchmark reference rate on Series E and F Preferred Stock, plus 5.14% and 4.762%, respectively, beginning with dividends declared on October 25, 2023.

REGULATORY CAPITAL (Tables)

REGULATORY CAPITAL (Tables)	9 Months Ended
	Sep. 30, 2024
Regulatory Capital Requirements under Banking Regulations [Abstract]
Summary of Capital Amounts, Tier 1 Risk Based and Tier 1 Leveraged Ratios	Generally, to comply with the regulatory definition of adequately capitalized, or well capitalized, respectively, or to comply with the Basel III capital requirements, an institution must at least maintain the common equity Tier 1, Tier 1 and total risk-based capital ratios and the Tier 1 leverage ratio in excess of the related minimum ratios as set forth in the following table: Minimum Capital Levels to be Classified as: Actual Adequately Capitalized Well Capitalized Basel III Compliant (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of September 30, 2024: Common equity Tier 1 capital (to risk-weighted assets) Customers Bancorp, Inc. $ 1,777,683 12.463 % $ 641,885 4.500 % N/A N/A $ 998,488 7.000 % Customers Bank $ 1,943,059 13.636 % $ 641,212 4.500 % $ 926,125 6.500 % $ 997,441 7.000 % Tier 1 capital (to risk-weighted assets) Customers Bancorp, Inc. $ 1,915,476 13.429 % $ 855,847 6.000 % N/A N/A $ 1,212,450 8.500 % Customers Bank $ 1,943,059 13.636 % $ 854,949 6.000 % $ 1,139,932 8.000 % $ 1,211,178 8.500 % Total capital (to risk-weighted assets) Customers Bancorp, Inc. $ 2,191,266 15.362 % $ 1,141,129 8.000 % N/A N/A $ 1,497,732 10.500 % Customers Bank $ 2,145,947 15.060 % $ 1,139,932 8.000 % $ 1,424,916 10.000 % $ 1,496,161 10.500 % Tier 1 capital (to average assets) Customers Bancorp, Inc. $ 1,915,476 8.947 % $ 856,386 4.000 % N/A N/A $ 856,386 4.000 % Customers Bank $ 1,943,059 9.082 % $ 855,807 4.000 % $ 1,069,759 5.000 % $ 855,807 4.000 % As of December 31, 2023: Common equity Tier 1 capital (to risk-weighted assets) Customers Bancorp, Inc. $ 1,661,149 12.230 % $ 611,200 4.500 % N/A N/A $ 950,755 7.000 % Customers Bank $ 1,868,360 13.773 % $ 610,453 4.500 % $ 881,765 6.500 % $ 949,594 7.000 % Tier 1 capital (to risk-weighted assets) Customers Bancorp, Inc. $ 1,798,942 13.245 % $ 814,933 6.000 % N/A N/A $ 1,154,489 8.500 % Customers Bank $ 1,868,360 13.773 % $ 813,937 6.000 % $ 1,085,250 8.000 % $ 1,153,078 8.500 % Total capital (to risk-weighted assets) Customers Bancorp, Inc. $ 2,076,550 15.289 % $ 1,086,578 8.000 % N/A N/A $ 1,426,133 10.500 % Customers Bank $ 2,073,202 15.283 % $ 1,085,250 8.000 % $ 1,356,562 10.000 % $ 1,424,390 10.500 % Tier 1 capital (to average assets) Customers Bancorp, Inc. $ 1,798,942 8.375 % $ 859,189 4.000 % N/A N/A $ 859,189 4.000 % Customers Bank $ 1,868,360 8.708 % $ 858,225 4.000 % $ 1,072,782 5.000 % $ 858,225 4.000 %

DISCLOSURES ABOUT FAIR VALUE _2

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Estimated Fair Values of Financial Instruments	The estimated fair values of Customers’ financial instruments at September 30, 2024 and December 31, 2023 were as follows: Fair Value Measurements at September 30, 2024 (amounts in thousands) Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Cash and cash equivalents $ 3,088,022 $ 3,088,022 $ 3,088,022 $ — $ — Debt securities, available for sale 2,377,733 2,377,733 — 2,360,908 16,825 Debt securities, held to maturity 1,064,437 1,027,514 — 487,238 540,276 Loans held for sale 275,420 275,420 — 2,523 272,897 Total loans and leases receivable, net of allowance for credit losses on loans and leases 13,644,538 13,511,102 — 1,250,413 12,260,689 FHLB, Federal Reserve Bank, and other restricted stock 95,035 95,035 — 95,035 — Derivatives 15,546 15,546 — 15,474 72 Liabilities: Deposits $ 18,069,389 $ 18,096,656 $ 15,638,305 $ 2,458,351 $ — FHLB advances 1,117,229 1,121,074 — 1,121,074 — Other borrowings 99,033 78,000 — 78,000 — Subordinated debt 182,439 157,542 — 157,542 — Derivatives 21,486 21,486 — 21,486 — Fair Value Measurements at December 31, 2023 (amounts in thousands) Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Cash and cash equivalents $ 3,846,346 $ 3,846,346 $ 3,846,346 $ — $ — Debt securities, available for sale 2,376,860 2,376,860 — 2,341,911 34,949 Debt securities, held to maturity 1,103,170 1,046,439 — 472,311 574,128 Loans held for sale 340,317 340,317 — 1,215 339,102 Total loans and leases receivable, net of allowance for credit losses on loans and leases 12,726,456 12,513,386 — 897,912 11,615,474 FHLB, Federal Reserve Bank, and other restricted stock 109,548 109,548 — 109,548 — Derivatives 17,931 17,931 — 17,906 25 Liabilities: Deposits $ 17,920,236 $ 17,922,005 $ 14,632,357 $ 3,289,648 $ — FHLB advances 1,203,207 1,188,517 — 1,188,517 — Other borrowings 123,840 103,674 — 103,674 — Subordinated debt 182,230 164,233 — 164,233 — Derivatives 27,110 27,110 — 27,110 —
Summary of Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis	For financial assets and liabilities measured at fair value on a recurring and nonrecurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, 2024 and December 31, 2023 were as follows: September 30, 2024 Fair Value Measurements at the End of the Reporting Period Using (amounts in thousands) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Total Measured at Fair Value on a Recurring Basis: Assets Available for sale debt securities: Asset-backed securities $ — $ 20,845 $ 16,825 $ 37,670 Agency-guaranteed residential mortgage-backed securities — 221,178 — 221,178 Agency-guaranteed residential collateralized mortgage obligations — 194,873 — 194,873 Agency-guaranteed commercial collateralized mortgage obligations — 96,943 — 96,943 Collateralized loan obligations — 310,429 — 310,429 Commercial mortgage-backed securities — 77,074 — 77,074 Corporate notes — 594,971 — 594,971 Private label collateralized mortgage obligations — 844,595 — 844,595 Derivatives — 15,474 72 15,546 Loans held for sale – fair value option — 2,523 217,098 219,621 Loans receivable, mortgage finance – fair value option — 1,250,413 — 1,250,413 Total assets – recurring fair value measurements $ — $ 3,629,318 $ 233,995 $ 3,863,313 Liabilities Derivatives $ — $ 21,486 $ — $ 21,486 Measured at Fair Value on a Nonrecurring Basis: Assets Collateral-dependent loans $ — $ — $ 18,003 $ 18,003 Total assets – nonrecurring fair value measurements $ — $ — $ 18,003 $ 18,003 December 31, 2023 Fair Value Measurements at the End of the Reporting Period Using (amounts in thousands) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Total Measured at Fair Value on a Recurring Basis: Assets Available for sale debt securities: Asset-backed securities $ — $ 57,680 $ 34,949 $ 92,629 Agency-guaranteed residential collateralized mortgage obligations — 116,908 — 116,908 Collateralized loan obligations — 489,092 — 489,092 Commercial mortgage-backed securities — 121,636 — 121,636 Corporate notes — 583,034 — 583,034 Private label collateralized mortgage obligations — 973,561 — 973,561 Derivatives — 17,906 25 17,931 Loans held for sale – fair value option — 1,215 188,062 189,277 Loans receivable, mortgage finance – fair value option — 897,912 — 897,912 Total assets – recurring fair value measurements $ — $ 3,258,944 $ 223,036 $ 3,481,980 Liabilities Derivatives $ — $ 27,110 $ — $ 27,110 Measured at Fair Value on a Nonrecurring Basis: Assets Collateral-dependent loans $ — $ — $ 2,373 $ 2,373 Total assets – nonrecurring fair value measurements $ — $ — $ 2,373 $ 2,373
Statement of Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis	The changes in asset-backed securities (Level 3 assets) measured at fair value on a recurring basis for the three and nine months ended September 30, 2024 and 2023 are summarized in the tables below. Asset-backed securities (amounts in thousands) Three Months Ended September 30, 2024 2023 Balance at July 1 $ 21,862 $ 51,825 Principal payments and premium amortization (5,704) (10,023) Increase in allowance for credit losses (24) (442) Decrease in allowance for credit losses 84 250 Change in fair value recognized in OCI 607 755 Balance at September 30 $ 16,825 $ 42,365 Asset-backed securities (amounts in thousands) Nine Months Ended September 30, 2024 2023 Balance at January 1 $ 34,949 $ 73,266 Principal payments and premium amortization (19,652) (31,683) Increase in allowance for credit losses (24) (1,488) Decrease in allowance for credit losses 200 311 Change in fair value recognized in OCI 1,352 1,959 Balance at September 30 $ 16,825 $ 42,365 The changes in other installment loans (Level 3 assets) measured at fair value on a recurring basis, based on an election made to account for the loans at fair value for the three and nine months ended September 30, 2024 and 2023 are summarized in the tables below. Other Installment Loans (amounts in thousands) Three Months Ended September 30, 2024 2023 Balance at July 1 $ 247,442 $ — Originations 223,625 — Sales (200,041) — Principal payments (53,928) — Change in fair value recognized in earnings — — Balance at September 30 $ 217,098 $ — Other Installment Loans (amounts in thousands) Nine Months Ended September 30, 2024 2023 Balance at January 1 $ 188,062 $ — Originations 704,081 — Sales (518,271) — Principal payments (156,774) — Change in fair value recognized in earnings — — Balance at September 30 $ 217,098 $ —
Summary of Financial Assets and Financial Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis	The following tables summarize financial assets and financial liabilities measured at fair value as of September 30, 2024 and December 31, 2023 on a recurring and nonrecurring basis for which Customers utilized Level 3 inputs to measure fair value. The unobservable Level 3 inputs noted below contain a level of uncertainty that may differ from what is realized in an immediate settlement of the assets. Therefore, Customers may realize a value higher or lower than the current estimated fair value of the assets. Quantitative Information about Level 3 Fair Value Measurements (dollars in thousands) Fair Value Valuation Technique Unobservable Input Range September 30, 2024 Asset-backed securities $ 16,825 Discounted cash flow Discount rate Annualized loss rate Constant prepayment rate 9% - 10% (9%) 3% - 13% (5%) 19% - 20% (20%) Quantitative Information about Level 3 Fair Value Measurements (dollars in thousands) Fair Value Valuation Technique Unobservable Input Range December 31, 2023 Asset-backed securities $ 34,949 Discounted cash flow Discount rate Annualized loss rate Constant prepayment rate 12% - 14% (13%) 3% - 13% (5%) 11% - 30% (26%)

DERIVATIVE INSTRUMENTS AND HE_2

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Assets at Fair Value	As of September 30, 2024 and December 31, 2023, the following amounts were recorded on the consolidated balance sheet related to cumulative basis adjustments for fair value hedges. Amortized Cost Cumulative Amount of Fair Value Hedging Adjustment to Hedged Items (amounts in thousands) September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 AFS debt securities $ 22,500 $ 22,500 $ 202 $ 941 Deposits 1,614,617 300,000 22,191 1,432 FHLB advances 1,200,000 700,000 12,229 3,206
Fair Value of Derivative Financial Instruments	The following tables present the fair value of Customers’ derivative financial instruments as well as their presentation on the consolidated balance sheets as of September 30, 2024 and December 31, 2023. September 30, 2024 Derivative Assets Derivative Liabilities (amounts in thousands) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives not designated as hedging instruments: Interest rate swaps and caps (1) Other assets $ 15,473 Other liabilities $ 21,474 December 31, 2023 Derivative Assets Derivative Liabilities (amounts in thousands) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives not designated as hedging instruments: Interest rate swaps and caps (1) Other assets $ 17,903 Other liabilities $ 27,097 (1) Customers’ centrally cleared derivatives are legally settled through variation margin payments and these payments are reflected as a reduction of the related derivative asset or liability, including accrued interest, on the consolidated balance sheet.
Effect of Derivative Financial Instruments on Net Income and Comprehensive Income	The following table presents amounts included in the consolidated statements of income related to derivatives designated as fair value hedges and derivatives not designated as hedges for the three and nine months ended September 30, 2024 and 2023. Amount of Income (Loss) Recognized in Earnings Three Months Ended September 30, Nine Months Ended September 30, (amounts in thousands) Income Statement Location 2024 2023 2024 2023 Derivatives designated as fair value hedges: Recognized on interest rate swaps Net interest income $ 42,717 $ 6,377 $ 54,453 $ 13,209 Recognized on hedged AFS debt securities Net interest income (306) (196) (739) (446) Recognized on hedged deposits Net interest income (23,444) — (25,130) — Recognized on hedged FHLB advances Net interest income (18,967) (6,181) (28,584) (12,763) Total $ — $ — $ — $ — Derivatives not designated as hedging instruments: Interest rate swaps and caps Other non-interest income $ 374 $ 192 $ 1,109 $ 332
Summary of Offsetting of Financial Assets and Derivative Assets	The following tables present derivative instruments that are subject to enforceable master netting arrangements. Customers’ interest rate swaps and interest rate caps with institutional counterparties are subject to master netting arrangements and are included in the tables below. Interest rate swaps and interest rate caps with commercial banking customers are not subject to master netting arrangements and are excluded from the tables below. Customers has not made a policy election to offset its derivative positions. Gross Amounts Recognized on the Consolidated Balance Sheet Gross Amounts Not Offset in the Consolidated Balance Sheet Net Amount (amounts in thousands) Financial Instruments Cash Collateral Received/Posted September 30, 2024 Interest rate derivative assets with institutional counterparties $ 10,647 $ (5,079) $ (5,568) $ — Interest rate derivative liabilities with institutional counterparties $ 5,079 $ (5,079) $ — $ — Gross Amounts Recognized on the Consolidated Balance Sheet Gross Amounts Not Offset in the Consolidated Balance Sheet Net Amount (amounts in thousands) Financial Instruments Cash Collateral Received/Posted December 31, 2023 Interest rate derivative assets with institutional counterparties $ 17,439 $ (500) $ (16,939) $ — Interest rate derivative liabilities with institutional counterparties $ 500 $ (500) $ — $ —
Summary of Offsetting of Financial Liabilities and Derivative Liabilities	The following tables present derivative instruments that are subject to enforceable master netting arrangements. Customers’ interest rate swaps and interest rate caps with institutional counterparties are subject to master netting arrangements and are included in the tables below. Interest rate swaps and interest rate caps with commercial banking customers are not subject to master netting arrangements and are excluded from the tables below. Customers has not made a policy election to offset its derivative positions. Gross Amounts Recognized on the Consolidated Balance Sheet Gross Amounts Not Offset in the Consolidated Balance Sheet Net Amount (amounts in thousands) Financial Instruments Cash Collateral Received/Posted September 30, 2024 Interest rate derivative assets with institutional counterparties $ 10,647 $ (5,079) $ (5,568) $ — Interest rate derivative liabilities with institutional counterparties $ 5,079 $ (5,079) $ — $ — Gross Amounts Recognized on the Consolidated Balance Sheet Gross Amounts Not Offset in the Consolidated Balance Sheet Net Amount (amounts in thousands) Financial Instruments Cash Collateral Received/Posted December 31, 2023 Interest rate derivative assets with institutional counterparties $ 17,439 $ (500) $ (16,939) $ — Interest rate derivative liabilities with institutional counterparties $ 500 $ (500) $ — $ —

DESCRIPTION OF THE BUSINESS - A

DESCRIPTION OF THE BUSINESS - Additional Information (Detail)	Sep. 30, 2024 branch
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of branches	7

EARNINGS (LOSS) PER SHARE - Com

EARNINGS (LOSS) PER SHARE - Components of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net income available to common shareholders, basic	$ 42,937	$ 82,953	$ 143,163	$ 177,225
Net income available to common shareholders, diluted	$ 42,937	$ 82,953	$ 143,163	$ 177,225
Weighted-average number of common shares outstanding – basic (shares)	31,567,797	31,290,581	31,563,660	31,452,700
Share-based compensation plans (shares)	1,198,691	884,503	1,209,705	583,759
Weighted-average number of common shares – diluted (shares)	32,766,488	32,175,084	32,773,365	32,036,459
Basic earnings per common share (usd per share)	$ 1.36	$ 2.65	$ 4.54	$ 5.63
Diluted earnings per common share (usd per share)	$ 1.31	$ 2.58	$ 4.37	$ 5.53

EARNINGS (LOSS) PER SHARE - Ant

EARNINGS (LOSS) PER SHARE - Anti-Dilutive Securities Excluded from Computation of Earnings (Loss) Per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share-based compensation awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (shares)	0	319,973	0	685,951

CHANGES IN ACCUMULATED OTHER _3

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 1,746,865	$ 1,456,652	$ 1,638,394	$ 1,402,961
Unrealized gains (losses) arising during period, before tax	32,810	23,666	36,439	14,535
Income tax effect	(8,432)	(6,011)	(9,351)	(3,692)
Other comprehensive income (loss) before reclassifications	24,378	17,655	27,088	10,843
Reclassification adjustments for (gains) losses included in net income, before tax	0	(429)	749	(429)
Income tax effect	0	109	(193)	109
Amounts reclassified from accumulated other comprehensive income (loss) to net income	0	(320)	556	(320)
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity	1,209	1,379	3,821	3,700
Income tax effect	(311)	(350)	(978)	(939)
Amortization of unrealized loss on securities transferred from available for sale to held to maturity	898	1,029	2,843	2,761
Other comprehensive income (loss), net of income tax effect	25,276	18,364	30,487	13,284
Ending balance	1,801,180	1,561,607	1,801,180	1,561,607
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(131,358)	(168,176)	(136,569)	(163,096)
Other comprehensive income (loss), net of income tax effect	25,276	18,364	30,487	13,284
Ending balance	$ (106,082)	$ (149,812)	$ (106,082)	$ (149,812)

INVESTMENT SECURITIES - Summary

INVESTMENT SECURITIES - Summary of Amortized Cost and Approximate Fair Value of Investment Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 2,488,717		$ 2,524,663
Allowance for Credit Losses	(4,639)	$ (5,339)	(3,952)	$ (3,849)	$ (3,439)	$ (578)
Gross Unrealized Gains	9,314		1,296
Gross Unrealized Losses	(115,659)		(145,147)
Fair Value	2,377,733		2,376,860
Equity securities	34,336		28,780
Total investment securities, at fair value	2,412,069		2,405,640
Available-for-sale debt securities, accrued interest	19,400		14,700
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	40,179		97,359
Allowance for Credit Losses	(307)	(367)	(483)	(1,755)	(1,563)	(578)
Gross Unrealized Gains	0		15
Gross Unrealized Losses	(2,202)		(4,262)
Fair Value	37,670		92,629
Agency-guaranteed residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	216,821
Allowance for Credit Losses	0
Gross Unrealized Gains	4,357
Gross Unrealized Losses	0
Fair Value	221,178
Agency-guaranteed residential collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	201,529		129,589
Allowance for Credit Losses	0		0
Gross Unrealized Gains	1,277		0
Gross Unrealized Losses	(7,933)		(12,681)
Fair Value	194,873		116,908
Agency-guaranteed commercial collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	96,200
Allowance for Credit Losses	0
Gross Unrealized Gains	1,361
Gross Unrealized Losses	(618)
Fair Value	96,943
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	315,096		500,109
Allowance for Credit Losses	0		0
Gross Unrealized Gains	100		1
Gross Unrealized Losses	(4,767)		(11,018)
Fair Value	310,429		489,092
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	78,711		125,885
Allowance for Credit Losses	0		0
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(1,637)		(4,249)
Fair Value	77,074		121,636
Corporate notes
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	660,626		636,880
Allowance for Credit Losses	(4,332)	$ (4,972)	(3,469)	$ (2,094)	$ (1,876)	$ 0
Gross Unrealized Gains	646		79
Gross Unrealized Losses	(61,969)		(50,456)
Fair Value	594,971		583,034
Private label collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	879,555		1,034,841
Allowance for Credit Losses	0		0
Gross Unrealized Gains	1,573		1,201
Gross Unrealized Losses	(36,533)		(62,481)
Fair Value	$ 844,595		$ 973,561

INVESTMENT SECURITIES - Additio

INVESTMENT SECURITIES - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) security entity	Sep. 30, 2023 USD ($) security contract	Sep. 30, 2024 USD ($) security	Sep. 30, 2023 USD ($) contract security entity	Dec. 31, 2023 USD ($) security
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales of investment securities available for sale	$ 100	$ 4,100	$ 240,847	$ 4,075
Number of available-for-sale investment securities, unrealized loss position, less than twelve month category | security	21		21
Number of available-for-sale investment securities, unrealized loss position, twelve month or more category | security	92		92
Number of asset-backed securities with deterioration in future estimated cash flows | security	2	4	2	4
Number of corporate notes with deterioration in future estimated cash flows | security	20	12	20	12
Number of available-for-sale investment securities, unrealized loss position | security	113		113		119
Debt securities, available for sale	$ 2,377,733		$ 2,377,733		$ 2,376,860
Net gain on sale of loans	0	$ 200	(200)	$ 200
Investment securities held to maturity	1,064,437		1,064,437		1,103,170
Servicing assets	2,100	$ 3,800	2,100	$ 3,800
Number of VIE Counterparties | contract		1		1
Variable Interest Entity, Not Primary Beneficiary
Debt Securities, Available-for-sale [Line Items]
Investment securities held to maturity	160,000	$ 436,800	160,000	$ 436,800
Consumer Loan, Held-For-Sale
Debt Securities, Available-for-sale [Line Items]
Net gain on sale of loans	300	$ 1,200	300	1,200
Consumer Loan, Held-For-Sale | Personal And Other Installment Loans
Debt Securities, Available-for-sale [Line Items]
Carrying value of consumer loans sold	$ 202,500		202,500	$ 556,700
Number of VIEs | entity	2			2
Consumer Loan, Held-For-Sale | Other Installment Loans
Debt Securities, Available-for-sale [Line Items]
Financing receivable, sale	$ 53,000		53,000	$ 154,000
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, available for sale	37,670		37,670		92,629
Investment securities held to maturity	538,832		538,832		575,990
Asset Pledged as Collateral
Debt Securities, Available-for-sale [Line Items]
Debt securities, available for sale	1,300,000		1,300,000		1,200,000
Debt securities	$ 412,300		$ 412,300		$ 398,400

INVESTMENT SECURITIES - Gain (L

INVESTMENT SECURITIES - Gain (Loss) on Sale of AFS Debt Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 0	$ 0	$ 176	$ 0
Gross realized losses	0	(429)	(925)	(429)
Net realized gains (losses) on sale of available for sale debt securities	$ 0	$ (429)	$ (749)	$ (429)

INVESTMENT SECURITIES - Summa_2

INVESTMENT SECURITIES - Summary of Available-for-Sale Debt Securities by Stated Maturity (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Due in one year or less, amortized cost	$ 41,523
Due after one year through five years, amortized cost	531,379
Due after five years through ten years, amortized cost	87,724
Amortized Cost	2,488,717	$ 2,524,663
Due in one year or less, fair value	29,940
Due after one year through five years, fair value	484,726
Due after five years through ten years, fair value	80,305
Fair Value	2,377,733	2,376,860
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, without single maturity date, amortized cost	40,179
Amortized Cost	40,179	97,359
Debt securities, available-for-sale, without single maturity date, fair value	37,670
Fair Value	37,670	92,629
Agency-guaranteed residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, without single maturity date, amortized cost	216,821
Amortized Cost	216,821
Debt securities, available-for-sale, without single maturity date, fair value	221,178
Fair Value	221,178
Agency-guaranteed residential collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, without single maturity date, amortized cost	201,529
Amortized Cost	201,529	129,589
Debt securities, available-for-sale, without single maturity date, fair value	194,873
Fair Value	194,873	116,908
Agency-guaranteed commercial collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, without single maturity date, amortized cost	96,200
Amortized Cost	96,200
Debt securities, available-for-sale, without single maturity date, fair value	96,943
Fair Value	96,943
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, without single maturity date, amortized cost	315,096
Amortized Cost	315,096	500,109
Debt securities, available-for-sale, without single maturity date, fair value	310,429
Fair Value	310,429	489,092
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, without single maturity date, amortized cost	78,711
Amortized Cost	78,711	125,885
Debt securities, available-for-sale, without single maturity date, fair value	77,074
Fair Value	77,074	121,636
Private label collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, without single maturity date, amortized cost	879,555
Amortized Cost	879,555	1,034,841
Debt securities, available-for-sale, without single maturity date, fair value	844,595
Fair Value	$ 844,595	$ 973,561

INVESTMENT SECURITIES - Gross U

INVESTMENT SECURITIES - Gross Unrealized Losses and Fair Value, Aggregated by Investment Category (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	$ 317,303	$ 356,234
Less than 12 Months, Unrealized Losses	(5,035)	(12,782)
12 Months or More, Fair Value	1,374,196	1,778,899
12 Months or More, Unrealized Losses	(75,097)	(116,764)
Total, Fair Value	1,691,499	2,135,133
Total, Unrealized Losses	(80,132)	(129,546)
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	30,960	64,029
12 Months or More, Unrealized Losses	(1,241)	(4,027)
Total, Fair Value	30,960	64,029
Total, Unrealized Losses	(1,241)	(4,027)
Agency-guaranteed residential collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	109,456	116,908
12 Months or More, Unrealized Losses	(7,933)	(12,681)
Total, Fair Value	109,456	116,908
Total, Unrealized Losses	(7,933)	(12,681)
Agency-guaranteed commercial collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	45,080
Less than 12 Months, Unrealized Losses	(618)
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total, Fair Value	45,080
Total, Unrealized Losses	(618)
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	37,164	29,241
Less than 12 Months, Unrealized Losses	(284)	(392)
12 Months or More, Fair Value	250,635	438,551
12 Months or More, Unrealized Losses	(4,483)	(10,626)
Total, Fair Value	287,799	467,792
Total, Unrealized Losses	(4,767)	(11,018)
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	77,074	121,636
12 Months or More, Unrealized Losses	(1,637)	(4,249)
Total, Fair Value	77,074	121,636
Total, Unrealized Losses	(1,637)	(4,249)
Corporate notes
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	59,408	23,243
Less than 12 Months, Unrealized Losses	(766)	(1,147)
12 Months or More, Fair Value	319,371	424,768
12 Months or More, Unrealized Losses	(26,637)	(33,764)
Total, Fair Value	378,779	448,011
Total, Unrealized Losses	(27,403)	(34,911)
Private label collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	175,651	303,750
Less than 12 Months, Unrealized Losses	(3,367)	(11,243)
12 Months or More, Fair Value	586,700	613,007
12 Months or More, Unrealized Losses	(33,166)	(51,417)
Total, Fair Value	762,351	916,757
Total, Unrealized Losses	$ (36,533)	$ (62,660)

INVESTMENT SECURITIES - Credit

INVESTMENT SECURITIES - Credit Valuation Allowance for Available-for-Sale Debt Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Debt securities, allowance for credit loss, beginning balance	$ 5,339	$ 3,439	$ 3,952	$ 578
Credit losses on securities for which credit losses were not previously recorded	24	564	659	2,485
Credit losses on previously impaired securities	12	511	613	1,488
Decrease in allowance for credit losses on previously impaired securities	(736)	(274)	(585)	(311)
Reduction due to sales	0	(391)	0	(391)
Debt securities, allowance for credit loss, ending balance	4,639	3,849	4,639	3,849
Asset-backed securities
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Debt securities, allowance for credit loss, beginning balance	367	1,563	483	578
Credit losses on securities for which credit losses were not previously recorded	24	0	24	0
Credit losses on previously impaired securities	0	442	0	1,488
Decrease in allowance for credit losses on previously impaired securities	(84)	(250)	(200)	(311)
Reduction due to sales	0	0	0	0
Debt securities, allowance for credit loss, ending balance	307	1,755	307	1,755
Corporate notes
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Debt securities, allowance for credit loss, beginning balance	4,972	1,876	3,469	0
Credit losses on securities for which credit losses were not previously recorded	0	564	635	2,485
Credit losses on previously impaired securities	12	69	613	0
Decrease in allowance for credit losses on previously impaired securities	(652)	(24)	(385)	0
Reduction due to sales	0	(391)	0	(391)
Debt securities, allowance for credit loss, ending balance	$ 4,332	$ 2,094	$ 4,332	$ 2,094

INVESTMENT SECURITIES - Summa_3

INVESTMENT SECURITIES - Summary of Amortized Cost and Approximate Fair Value of Investment Securities (Detail) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	$ 1,064,437,000	$ 1,103,170,000
Allowance for Credit Losses	0	0
Net Carrying Value	1,064,437,000	1,103,170,000
Gross Unrealized Gains	2,417,000	202,000
Gross Unrealized Losses	(39,340,000)	(56,933,000)
Fair Value	1,027,514,000	1,046,439,000
Debt securities, held to maturity, accrued interest	2,600,000	2,700,000
Asset-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	538,832,000	575,990,000
Allowance for Credit Losses	0	0
Net Carrying Value	538,832,000	575,990,000
Gross Unrealized Gains	1,628,000	202,000
Gross Unrealized Losses	(184,000)	(2,064,000)
Fair Value	540,276,000	574,128,000
Agency-guaranteed residential mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	6,920,000	7,039,000
Allowance for Credit Losses	0	0
Net Carrying Value	6,920,000	7,039,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(522,000)	(649,000)
Fair Value	6,398,000	6,390,000
Agency-guaranteed commercial mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	1,790,000	1,850,000
Allowance for Credit Losses	0	0
Net Carrying Value	1,790,000	1,850,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(271,000)	(134,000)
Fair Value	1,519,000	1,716,000
Agency-guaranteed residential collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	174,098,000	186,636,000
Allowance for Credit Losses	0	0
Net Carrying Value	174,098,000	186,636,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(11,221,000)	(19,049,000)
Fair Value	162,877,000	167,587,000
Agency-guaranteed commercial collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	159,050,000	146,765,000
Allowance for Credit Losses	0	0
Net Carrying Value	159,050,000	146,765,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(19,426,000)	(23,178,000)
Fair Value	139,624,000	123,587,000
Private label collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	183,747,000	184,890,000
Allowance for Credit Losses	0	0
Net Carrying Value	183,747,000	184,890,000
Gross Unrealized Gains	789,000	0
Gross Unrealized Losses	(7,716,000)	(11,859,000)
Fair Value	$ 176,820,000	$ 173,031,000

INVESTMENT SECURITIES - Summa_4

INVESTMENT SECURITIES - Summary of Held-to-Maturity Debt Securities by Stated Maturity (Detail) $ in Thousands	Sep. 30, 2024 USD ($)
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	$ 1,064,437
Fair Value	1,027,514
Asset-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	538,832
Fair Value	540,276
Agency-guaranteed residential mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	6,920
Fair Value	6,398
Agency-guaranteed commercial mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	1,790
Fair Value	1,519
Agency-guaranteed residential collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	174,098
Fair Value	162,877
Agency-guaranteed commercial collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	159,050
Fair Value	139,624
Private label collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	183,747
Fair Value	$ 176,820

INVESTMENT SECURITIES - Credi_2

INVESTMENT SECURITIES - Credit Valuation Allowance for Held to Maturity Debt Securities (Details)	Sep. 30, 2024 USD ($)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]
Debt securities, held-to-maturity, allowance for credit loss, beginning balance	$ 0
Debt securities, held-to-maturity, allowance for credit loss, ending balance	$ 0

INVESTMENT SECURITIES - Debt Se

INVESTMENT SECURITIES - Debt Securities, Held-to-Maturity, Credit Quality Indicator (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	$ 1,064,437	$ 1,103,170
Asset-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	538,832	575,990
Agency-guaranteed residential mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	6,920	7,039
Agency-guaranteed commercial mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	1,790	1,850
Agency-guaranteed residential collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	174,098	186,636
Agency-guaranteed commercial collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	159,050	146,765
Private label collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	183,747	$ 184,890
AAA
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	100,287
AAA | Asset-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AAA | Agency-guaranteed residential mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AAA | Agency-guaranteed commercial mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AAA | Agency-guaranteed residential collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AAA | Agency-guaranteed commercial collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AAA | Private label collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	100,287
AA
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	9,301
AA | Asset-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AA | Agency-guaranteed residential mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AA | Agency-guaranteed commercial mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AA | Agency-guaranteed residential collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AA | Agency-guaranteed commercial collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	0
AA | Private label collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	9,301
Not Rated
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	954,849
Not Rated | Asset-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	538,832
Not Rated | Agency-guaranteed residential mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	6,920
Not Rated | Agency-guaranteed commercial mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	1,790
Not Rated | Agency-guaranteed residential collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	174,098
Not Rated | Agency-guaranteed commercial collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	159,050
Not Rated | Private label collateralized mortgage obligations
Schedule of Held-to-Maturity Securities [Line Items]
Investment securities held to maturity	$ 74,159

LOANS HELD FOR SALE - Compositi

LOANS HELD FOR SALE - Composition of Loans Held for Sale (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Receivable, Held-for-Sale [Abstract]
Residential mortgage loans, at fair value	$ 2,523	$ 1,215
Personal installment loans, at lower of cost or fair value	55,799	151,040
Other installment loans, at fair value	217,098	188,062
Loans held for sale (includes $219,621 and $189,277, respectively, at fair value)	$ 275,420	$ 340,317

LOANS HELD FOR SALE - Narrative

LOANS HELD FOR SALE - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) entity	Sep. 30, 2023 USD ($) entity	Sep. 30, 2024 USD ($) entity	Sep. 30, 2023 USD ($) entity	Dec. 31, 2023 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for sale (including nonperforming loans)	$ 5,300		$ 5,300		$ 500
Investment securities held to maturity	1,064,437		1,064,437		$ 1,103,170
Proceeds from sales of loans and leases			34,426	$ 409,503
Consumer Loan, Held-For-Sale | Personal And Other Installment Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Carrying value of consumer loans sold	$ 202,500		$ 202,500	$ 556,700
Number of counterparties | entity	2	2	2	2
Consumer Loan, Held-For-Sale | Other Installment Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, sale	$ 53,000		$ 53,000	$ 154,000
Variable Interest Entity, Not Primary Beneficiary
Financing Receivable, Credit Quality Indicator [Line Items]
Investment securities held to maturity	160,000	$ 436,800	160,000	436,800
Proceeds from sales of loans and leases	$ 40,200		$ 40,200	$ 115,100

LOANS AND LEASES RECEIVABLE A_3

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES- Schedule of Loans and Leases Receivable (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	$ 12,496,815		$ 11,889,120
Loans and leases receivable	12,527,283		11,963,855
Loans receivable, mortgage finance, at fair value	1,250,413		897,912
Allowance for credit losses on loans and leases	(133,158)	$ (132,436)	(135,311)	$ (139,213)	$ (139,656)	$ (130,924)
Total loans and leases receivable, net of allowance for credit losses on loans and leases	13,644,538		12,726,456
Loans and leases receivable	12,527,283		11,963,855
Loans receivable, PPP	30,500		74,700
Deferred (fees) costs and unamortized (discounts) premiums, net	(18,100)		(22,700)
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	2,115,978		2,138,622
Allowance for credit losses on loans and leases	(18,090)	(20,652)	(16,343)	(15,870)	(15,400)	(14,541)
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	174,509		166,393
Allowance for credit losses on loans and leases	(1,606)	(1,856)	(1,482)	(3,130)	(2,639)	(1,913)
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	500,786		484,435
Allowance for credit losses on loans and leases	(5,837)	(5,884)	(6,586)	(6,802)	(6,846)	(6,094)
Manufactured housing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	34,481		38,670
Allowance for credit losses on loans and leases	(4,081)	$ (4,094)	(4,239)	$ (4,080)	$ (4,338)	$ (4,430)
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	11,271,915		10,565,824
Commercial | Specialized lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	5,468,507		5,006,693
Commercial | Other commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	1,204,426		1,279,147
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	2,115,978		2,138,622
Commercial | Commercial real estate owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	981,904		797,319
Commercial | Commercial real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	1,326,591		1,177,650
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	174,509		166,393
Commercial | Direct finance equipment leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	254,300		205,700
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	1,255,368		1,398,031
Consumer | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	500,786		484,435
Consumer | Manufactured housing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	34,481		38,670
Consumer | Personal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	453,739		555,533
Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	$ 266,362		$ 319,393

LOANS AND LEASES RECEIVABLE A_4

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
Accrued interest	$ 89,200		$ 95,000
Loans receivable, excluding accrued interest	$ 13,644,538		12,726,456
Loans held for sale, average life from purchase to sale	30 days
Allowance for credit loss, excluding accrued interest	$ 133,158	$ 132,436	135,311	$ 139,213	$ 139,656	$ 130,924
Allowance for credit loss, period decrease	2,200
Number of commitments to lend additional funds (commitment)	0
Loans receivable, PPP	30,500		74,700
Total consumer loans receivable	12,496,815		11,889,120
Asset Pledged as Collateral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total consumer loans receivable	7,800,000		7,000,000
Commercial Real Estate | Other commercial and industrial | Collateral Dependent Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans receivable, excluding accrued interest	$ 31,700		$ 15,800

LOANS AND LEASES RECEIVABLE A_5

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Performance Status (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	$ 12,496,815	$ 11,889,120
Loans still accruing interest because collection is considered probable	400	500
Purchased-credit-impaired loans	127,000	157,200
Small Business Administration (SBA), CARES Act, Paycheck Protection Program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	30,500	74,700
Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	61,827	93,956
30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	10,042	55,532
30-59 Days past due | Small Business Administration (SBA), CARES Act, Paycheck Protection Program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	500	700
60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	15,193	14,600
90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	36,592	23,824
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	12,434,988	11,795,164
60 Days or More Past Due | Small Business Administration (SBA), CARES Act, Paycheck Protection Program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	17,100	48,500
Commercial and industrial, including specialized lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	6,642,465	6,211,105
Commercial and industrial, including specialized lending | Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	4,719	5,991
Commercial and industrial, including specialized lending | 30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	540	1,516
Commercial and industrial, including specialized lending | 60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	660	322
Commercial and industrial, including specialized lending | 90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	3,519	4,153
Commercial and industrial, including specialized lending | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	6,637,746	6,205,114
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	2,115,978	2,138,622
Multifamily | Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	11,834	16,003
Multifamily | 30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	0	16,003
Multifamily | 60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	0	0
Multifamily | 90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	11,834	0
Multifamily | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	2,104,144	2,122,619
Commercial real estate owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	981,904	797,319
Commercial real estate owner occupied | Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	8,982	10,090
Commercial real estate owner occupied | 30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	0	449
Commercial real estate owner occupied | 60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	391	3,814
Commercial real estate owner occupied | 90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	8,591	5,827
Commercial real estate owner occupied | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	972,922	787,229
Commercial real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	1,326,591	1,177,650
Commercial real estate non-owner occupied | Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	1,056	16,653
Commercial real estate non-owner occupied | 30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	293	16,653
Commercial real estate non-owner occupied | 60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	701	0
Commercial real estate non-owner occupied | 90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	62	0
Commercial real estate non-owner occupied | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	1,325,535	1,160,997
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	174,509	166,393
Construction | Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	0	0
Construction | 30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	0	0
Construction | 60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	0	0
Construction | 90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	0	0
Construction | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	174,509	166,393
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	500,786	484,435
Residential real estate | Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	13,259	16,523
Residential real estate | 30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	3,320	10,504
Residential real estate | 60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	5,944	2,255
Residential real estate | 90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	3,995	3,764
Residential real estate | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	487,527	467,912
Manufactured housing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	34,481	38,670
Manufactured housing | Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	3,086	4,364
Manufactured housing | 30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	623	1,152
Manufactured housing | 60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	200	343
Manufactured housing | 90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	2,263	2,869
Manufactured housing | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	31,395	34,306
Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	720,101	874,926
Installment | Total past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	18,891	24,332
Installment | 30-59 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	5,266	9,255
Installment | 60-89 Days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	7,297	7,866
Installment | 90 Days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	6,328	7,211
Installment | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total consumer loans receivable	$ 701,210	$ 850,594

LOANS AND LEASES RECEIVABLE A_6

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Summary of Amortized Cost of Loans and Leases on Nonaccrual Status (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	$ 29,252	$ 15,919
Nonaccrual loans with related allowance	12,767	10,730
Total nonaccrual loans	42,019	26,649
Commercial and industrial, including specialized lending
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	4,598	3,365
Nonaccrual loans with related allowance	17	1,071
Total nonaccrual loans	4,615	4,436
Multifamily
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	11,834	0
Nonaccrual loans with related allowance	0	0
Total nonaccrual loans	11,834	0
Commercial real estate owner occupied
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	4,590	5,869
Nonaccrual loans with related allowance	4,023	0
Total nonaccrual loans	8,613	5,869
Commercial real estate non-owner occupied
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	763	0
Nonaccrual loans with related allowance	0	0
Total nonaccrual loans	763	0
Residential real estate
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	7,467	6,685
Nonaccrual loans with related allowance	530	117
Total nonaccrual loans	7,997	6,802
Manufactured housing
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	0	0
Nonaccrual loans with related allowance	1,869	2,331
Total nonaccrual loans	1,869	2,331
Installment
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	0	0
Nonaccrual loans with related allowance	6,328	7,211
Total nonaccrual loans	$ 6,328	$ 7,211

LOANS AND LEASES RECEIVABLE A_7

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Schedule of Allowance for Credit Losses (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 15, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		$ 132,436	$ 139,656	$ 135,311	$ 130,924	$ 130,924
Allowance for credit losses on FDIC PCD loans, net of charge-offs					2,576
Charge-offs		(21,224)	(30,020)	(66,775)	(69,713)	(95,066)
Recoveries		4,180	12,522	13,052	18,000
Provision (benefit) for credit losses on loans and leases		17,766	17,055	51,570	57,426
Ending balance		133,158	139,213	133,158	139,213	135,311
Allowance for credit losses on FDIC PCD loans, excluding charge-offs	$ 8,700
Commercial and industrial, including specialized lending
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		23,721	29,092	23,503	17,582	17,582
Allowance for credit losses on FDIC PCD loans, net of charge-offs					2,576
Charge-offs		(6,538)	(9,008)	(19,282)	(9,600)
Recoveries		1,482	6,034	4,889	6,439
Provision (benefit) for credit losses on loans and leases		6,526	(1,132)	16,081	7,989
Ending balance		25,191	24,986	25,191	24,986	23,503
Commercial and industrial, including specialized lending | Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		(6,538)		(19,282)		(16,915)
Multifamily
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		20,652	15,400	16,343	14,541	14,541
Allowance for credit losses on FDIC PCD loans, net of charge-offs					0
Charge-offs		(2,167)	(1,999)	(4,073)	(3,447)
Recoveries		0	0	0	0
Provision (benefit) for credit losses on loans and leases		(395)	2,469	5,820	4,776
Ending balance		18,090	15,870	18,090	15,870	16,343
Multifamily | Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		(2,167)		(4,073)		(3,574)
Commercial real estate owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		8,431	10,215	9,882	6,454	6,454
Allowance for credit losses on FDIC PCD loans, net of charge-offs					0
Charge-offs		(4)	(39)	(26)	(39)
Recoveries		0	0	0	34
Provision (benefit) for credit losses on loans and leases		2,486	187	1,057	3,914
Ending balance		10,913	10,363	10,913	10,363	9,882
Commercial real estate owner occupied | Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		(4)		(26)		(39)
Commercial real estate non-owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		17,966	13,495	16,859	11,219	11,219
Allowance for credit losses on FDIC PCD loans, net of charge-offs					0
Charge-offs		0	0	0	(4,527)
Recoveries		0	0	0	27
Provision (benefit) for credit losses on loans and leases		(663)	2,324	444	9,100
Ending balance		17,303	15,819	17,303	15,819	16,859
Commercial real estate non-owner occupied | Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		0		0		(4,527)
Construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		1,856	2,639	1,482	1,913	1,913
Allowance for credit losses on FDIC PCD loans, net of charge-offs					0
Charge-offs		0	0	0	0
Recoveries		3	0	10	116
Provision (benefit) for credit losses on loans and leases		(253)	491	114	1,101
Ending balance		1,606	3,130	1,606	3,130	1,482
Construction | Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-offs		0		0		0
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		5,884	6,846	6,586	6,094	6,094
Allowance for credit losses on FDIC PCD loans, net of charge-offs					0
Charge-offs		(19)	(42)	(38)	(69)
Recoveries		40	29	61	34
Provision (benefit) for credit losses on loans and leases		(68)	(31)	(772)	743
Ending balance		5,837	6,802	5,837	6,802	6,586
Manufactured housing
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		4,094	4,338	4,239	4,430	4,430
Allowance for credit losses on FDIC PCD loans, net of charge-offs					0
Charge-offs		0	0	0	0
Recoveries		0	0	0	0
Provision (benefit) for credit losses on loans and leases		(13)	(258)	(158)	(350)
Ending balance		4,081	4,080	4,081	4,080	4,239
Installment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		49,832	57,631	56,417	68,691	68,691
Allowance for credit losses on FDIC PCD loans, net of charge-offs					0
Charge-offs		(12,496)	(18,932)	(43,356)	(52,031)
Recoveries		2,655	6,459	8,092	11,350
Provision (benefit) for credit losses on loans and leases		10,146	13,005	28,984	30,153
Ending balance		$ 50,137	$ 58,163	$ 50,137	$ 58,163	$ 56,417
Special Lending | Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Charge-off of certain PCD loans	$ 6,200

LOANS AND LEASES RECEIVABLE A_8

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Loan Modifications for Borrowers Experiencing Financial Difficulty (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 7,025	$ 4,200	$ 26,545	$ 11,862
Loan modifications	42,564	11,864	42,564	11,864
30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	455	837	455	837
60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	355	565	355	565
90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	932	523	932	523
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	40,822	9,939	40,822	9,939
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	1,788	3,863	7,066	11,085
Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	4,855	210	18,992	442
Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	37	28	93	222
Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	79	$ 99	128	$ 113
Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	266		266
Commercial and industrial, including specialized lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 4,800		$ 10,049
Percentage of Total by Financing Class	0.07%		0.15%
Interest Rate Reduction (%)	0	0	0	0
Debt Forgiven	$ 0	$ 0	$ 0	$ 0
Loan modifications	22,625		22,625
Commercial and industrial, including specialized lending | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Commercial and industrial, including specialized lending | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Commercial and industrial, including specialized lending | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	230		230
Commercial and industrial, including specialized lending | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	22,395		22,395
Commercial and industrial, including specialized lending | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0		$ 2,000
Term Extension and Payment Deferral (in months)	0 months	0 months	1 month	0 months
Commercial and industrial, including specialized lending | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 4,800		$ 8,049
Term Extension and Payment Deferral (in months)	10 months	0 months	8 months	0 months
Commercial and industrial, including specialized lending | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0		$ 0
Commercial and industrial, including specialized lending | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	0		0
Commercial and industrial, including specialized lending | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	0		0
Manufactured housing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 97	$ 99	$ 224	$ 119
Percentage of Total by Financing Class	0.28%	0.25%	0.65%	0.30%
Interest Rate Reduction (%)	0.038	0.044	0.040	0.043
Debt Forgiven	$ 0	$ 0	$ 0	$ 0
Loan modifications	349	119	349	119
Manufactured housing | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	19	0	19	0
Manufactured housing | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	24	0	24	0
Manufactured housing | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	37	0	37	0
Manufactured housing | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	269	119	269	119
Manufactured housing | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 18	$ 0	$ 96	$ 6
Term Extension and Payment Deferral (in months)	115 months	31 months	78 months	30 months
Manufactured housing | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0	$ 0	$ 0	$ 0
Term Extension and Payment Deferral (in months)	0 months	0 months	0 months	0 months
Manufactured housing | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0	$ 0	$ 0	$ 0
Manufactured housing | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	79	99	128	113
Manufactured housing | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	0		0
Personal installment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 2,128	$ 4,101	$ 5,507	$ 11,574
Percentage of Total by Financing Class	0.47%	0.42%	1.21%	1.20%
Interest Rate Reduction (%)	0.136	0	0.136	0
Debt Forgiven	$ 12	$ 20	$ 153	$ 183
Loan modifications	8,825	11,576	8,825	11,576
Personal installment | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	436	837	436	837
Personal installment | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	331	565	331	565
Personal installment | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	665	354	665	354
Personal installment | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	7,393	9,820	7,393	9,820
Personal installment | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 1,770	$ 3,863	$ 4,970	$ 10,910
Term Extension and Payment Deferral (in months)	5 months	6 months	5 months	6 months
Personal installment | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 55	$ 210	$ 178	$ 442
Term Extension and Payment Deferral (in months)	7 months	6 months	7 months	6 months
Personal installment | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 37	$ 28	$ 93	$ 222
Personal installment | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	0	0	0	$ 0
Personal installment | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	266		266
Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 10,713
Percentage of Total by Financing Class			0.51%
Interest Rate Reduction (%)			0	0
Debt Forgiven			$ 0	$ 0
Loan modifications	10,713		10,713
Multifamily | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Multifamily | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Multifamily | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Multifamily | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	10,713		10,713
Multifamily | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Term Extension and Payment Deferral (in months)			0 months	0 months
Multifamily | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 10,713
Term Extension and Payment Deferral (in months)			5 months	0 months
Multifamily | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Multifamily | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			0
Multifamily | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			0
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 52
Percentage of Total by Financing Class			0.01%
Interest Rate Reduction (%)			0	0
Debt Forgiven			$ 0	$ 0
Loan modifications	52		52
Residential real estate | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Residential real estate | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Residential real estate | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Residential real estate | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	$ 52		52
Residential real estate | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Term Extension and Payment Deferral (in months)			0 months	0 months
Residential real estate | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 52
Term Extension and Payment Deferral (in months)			5 months	0 months
Residential real estate | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Residential real estate | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			0
Residential real estate | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Commercial real estate owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 169
Percentage of Total by Financing Class				0.02%
Interest Rate Reduction (%)			0	0
Debt Forgiven			$ 0	$ 0
Loan modifications		169		169
Commercial real estate owner occupied | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications		0		0
Commercial real estate owner occupied | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications		0		0
Commercial real estate owner occupied | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications		169		169
Commercial real estate owner occupied | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications		$ 0		0
Commercial real estate owner occupied | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 169
Term Extension and Payment Deferral (in months)			0 months	4 months
Commercial real estate owner occupied | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 0
Term Extension and Payment Deferral (in months)			0 months	0 months
Commercial real estate owner occupied | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 0
Commercial real estate owner occupied | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 0

LOANS AND LEASES RECEIVABLE A_9

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Credit Ratings (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 15, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		$ 1,828,965		$ 1,828,965		$ 1,570,977
Fiscal year before current year		1,127,390		1,127,390		4,397,333
Two years before current year		4,039,659		4,039,659		1,521,513
Three years before current year		1,193,162		1,193,162		634,860
Four years before current year		522,563		522,563		347,230
Prior		1,282,513		1,282,513		1,173,759
Revolving loans amortized cost basis		2,090,987		2,090,987		1,843,180
Revolving loans converted to term		411,576		411,576		400,268
Loans and leases receivable		12,496,815		12,496,815		11,889,120
Current year, charge-offs		519		2,619		9,211
Fiscal year before current year, charge-offs		2,432		6,539		24,986
Two years before current fiscal year, charge-offs		5,232		23,135		27,153
Three years before current fiscal year, charge-offs		3,363		16,246		15,938
Four years before current fiscal year, charge-offs		1,295		4,715		6,821
Prior, charge-offs		8,383		13,521		10,957
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		21,224	$ 30,020	66,775	$ 69,713	95,066
Allowance for credit losses on FDIC PCD loans, excluding charge-offs	$ 8,700
Small Business Administration (SBA), CARES Act, Paycheck Protection Program
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		30,500		30,500		74,700
Loans and leases receivable, charge-offs		800		5,000		10,700
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		11,271,915		11,271,915		10,565,824
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		1,255,368		1,255,368		1,398,031
Commercial loans and leases receivable | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		1,705,823		1,705,823		1,291,772
Fiscal year before current year		928,637		928,637		3,911,891
Two years before current year		3,630,717		3,630,717		1,228,524
Three years before current year		956,618		956,618		577,273
Four years before current year		480,140		480,140		290,649
Prior		1,134,038		1,134,038		1,056,227
Revolving loans amortized cost basis		1,993,906		1,993,906		1,734,485
Revolving loans converted to term		411,568		411,568		400,268
Loans and leases receivable		11,241,447		11,241,447		10,491,089
Current year, charge-offs		94		312		1,483
Fiscal year before current year, charge-offs		0		702		381
Two years before current fiscal year, charge-offs		13		5,685		3,169
Three years before current fiscal year, charge-offs		52		4,147		10,348
Four years before current fiscal year, charge-offs		742		2,429		24
Prior, charge-offs		7,808		10,106		9,650
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		8,709		23,381		25,055
Commercial and industrial, including specialized lending
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		6,642,465		6,642,465		6,211,105
Loans and leases receivable, charge-offs		6,538	9,008	19,282	9,600
Commercial and industrial, including specialized lending | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		1,301,460		1,301,460		1,217,661
Fiscal year before current year		791,524		791,524		1,952,227
Two years before current year		1,630,203		1,630,203		549,699
Three years before current year		344,479		344,479		199,030
Four years before current year		118,354		118,354		64,016
Prior		70,096		70,096		106,137
Revolving loans amortized cost basis		1,986,052		1,986,052		1,734,485
Revolving loans converted to term		400,297		400,297		387,850
Loans and leases receivable		6,642,465		6,642,465		6,211,105
Current year, charge-offs		94		312		1,483
Fiscal year before current year, charge-offs		0		702		381
Two years before current fiscal year, charge-offs		13		5,685		3,169
Three years before current fiscal year, charge-offs		52		4,147		10,348
Four years before current fiscal year, charge-offs		742		2,429		24
Prior, charge-offs		5,637		6,007		1,510
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		6,538		19,282		16,915
Commercial and industrial, including specialized lending | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		1,288,705		1,288,705		1,184,923
Fiscal year before current year		790,316		790,316		1,909,592
Two years before current year		1,591,974		1,591,974		483,039
Three years before current year		328,477		328,477		170,384
Four years before current year		114,778		114,778		59,213
Prior		32,650		32,650		63,480
Revolving loans amortized cost basis		1,952,229		1,952,229		1,722,559
Revolving loans converted to term		392,242		392,242		384,947
Loans and leases receivable		6,491,371		6,491,371		5,978,137
Commercial and industrial, including specialized lending | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		12,755		12,755		18,000
Fiscal year before current year		250		250		3,377
Two years before current year		30,397		30,397		5,127
Three years before current year		3,926		3,926		1,986
Four years before current year		0		0		0
Prior		67		67		595
Revolving loans amortized cost basis		29,747		29,747		7,916
Revolving loans converted to term		4,417		4,417		2,903
Loans and leases receivable		81,559		81,559		39,904
Commercial and industrial, including specialized lending | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		14,738
Fiscal year before current year		958		958		39,258
Two years before current year		7,832		7,832		61,533
Three years before current year		12,076		12,076		26,660
Four years before current year		3,576		3,576		4,803
Prior		37,379		37,379		42,062
Revolving loans amortized cost basis		4,076		4,076		4,010
Revolving loans converted to term		3,638		3,638		0
Loans and leases receivable		69,535		69,535		193,064
Commercial and industrial, including specialized lending | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		0		0		0
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		0		0		0
Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		2,115,978		2,115,978		2,138,622
Loans and leases receivable, charge-offs		2,167	1,999	4,073	3,447
Multifamily | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		76,380		76,380		845
Fiscal year before current year		823		823		1,229,198
Two years before current year		1,209,756		1,209,756		371,016
Three years before current year		301,976		301,976		127,493
Four years before current year		125,476		125,476		49,514
Prior		401,567		401,567		360,556
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		2,115,978		2,115,978		2,138,622
Current year, charge-offs		0		0		0
Fiscal year before current year, charge-offs		0		0		0
Two years before current fiscal year, charge-offs		0		0		0
Three years before current fiscal year, charge-offs		0		0		0
Four years before current fiscal year, charge-offs		0		0		0
Prior, charge-offs		2,167		4,073		3,574
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs				0		0
Loans and leases receivable, charge-offs		2,167		4,073		3,574
Multifamily | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		76,380		76,380		845
Fiscal year before current year		823		823		1,229,198
Two years before current year		1,202,986		1,202,986		371,016
Three years before current year		301,976		301,976		127,493
Four years before current year		125,476		125,476		43,046
Prior		303,992		303,992		253,806
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		2,011,633		2,011,633		2,025,404
Multifamily | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		6,770		6,770		0
Three years before current year		0		0		0
Four years before current year		0		0		6,468
Prior		42,662		42,662		67,035
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		49,432		49,432		73,503
Multifamily | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		54,913		54,913		39,715
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		54,913		54,913		39,715
Multifamily | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		0		0		0
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		0		0		0
Commercial real estate owner occupied loans:
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		981,904		981,904		797,319
Loans and leases receivable, charge-offs		4	39	26	39
Commercial real estate owner occupied loans: | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		218,625		218,625		41,011
Fiscal year before current year		67,044		67,044		254,878
Two years before current year		238,806		238,806		195,721
Three years before current year		212,608		212,608		77,821
Four years before current year		52,820		52,820		80,420
Prior		173,090		173,090		136,150
Revolving loans amortized cost basis		7,640		7,640		0
Revolving loans converted to term		11,271		11,271		11,318
Loans and leases receivable		981,904		981,904		797,319
Current year, charge-offs		0		0		0
Fiscal year before current year, charge-offs		0		0		0
Two years before current fiscal year, charge-offs		0		0		0
Three years before current fiscal year, charge-offs		0		0		0
Four years before current fiscal year, charge-offs		0		0		0
Prior, charge-offs		4		26		39
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		4		26		39
Commercial real estate owner occupied loans: | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		218,625		218,625		41,011
Fiscal year before current year		64,100		64,100		254,878
Two years before current year		238,103		238,103		180,289
Three years before current year		197,298		197,298		77,821
Four years before current year		52,820		52,820		44,382
Prior		147,520		147,520		120,248
Revolving loans amortized cost basis		7,640		7,640		0
Revolving loans converted to term		74		74		11,318
Loans and leases receivable		926,180		926,180		729,947
Commercial real estate owner occupied loans: | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		15,432
Three years before current year		0		0		0
Four years before current year		0		0		35,691
Prior		10,924		10,924		47
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		11,197		11,197		0
Loans and leases receivable		22,121		22,121		51,170
Commercial real estate owner occupied loans: | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		2,944		2,944		0
Two years before current year		703		703		0
Three years before current year		15,310		15,310		0
Four years before current year		0		0		347
Prior		14,646		14,646		15,855
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		33,603		33,603		16,202
Commercial real estate owner occupied loans: | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		0		0		0
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		0		0		0
Commercial real estate non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		1,326,591		1,326,591		1,177,650
Loans and leases receivable, charge-offs		0	0	0	4,527
Commercial real estate non-owner occupied | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		100,123		100,123		12,906
Fiscal year before current year		42,427		42,427		336,791
Two years before current year		417,983		417,983		109,521
Three years before current year		97,555		97,555		172,929
Four years before current year		183,490		183,490		96,699
Prior		484,799		484,799		448,804
Revolving loans amortized cost basis		214		214		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		1,326,591		1,326,591		1,177,650
Current year, charge-offs		0		0		0
Fiscal year before current year, charge-offs		0		0		0
Two years before current fiscal year, charge-offs		0		0		0
Three years before current fiscal year, charge-offs		0		0		0
Four years before current fiscal year, charge-offs		0		0		0
Prior, charge-offs		0		0		4,527
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		0		0		4,527
Commercial real estate non-owner occupied | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		100,123		100,123		12,906
Fiscal year before current year		30,427		30,427		325,881
Two years before current year		413,675		413,675		109,521
Three years before current year		97,555		97,555		152,227
Four years before current year		182,789		182,789		88,586
Prior		424,192		424,192		367,996
Revolving loans amortized cost basis		214		214		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		1,248,975		1,248,975		1,057,117
Commercial real estate non-owner occupied | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		12,000		12,000		0
Two years before current year		4,308		4,308		0
Three years before current year		0		0		20,702
Four years before current year		0		0		0
Prior		438		438		9,148
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		16,746		16,746		29,850
Commercial real estate non-owner occupied | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		10,910
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		701		701		8,113
Prior		60,169		60,169		71,660
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		60,870		60,870		90,683
Commercial real estate non-owner occupied | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		0		0		0
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		0		0		0
Construction loans:
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		174,509		174,509		166,393
Loans and leases receivable, charge-offs		0	0	0	0
Construction loans: | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		9,235		9,235		19,349
Fiscal year before current year		26,819		26,819		138,797
Two years before current year		133,969		133,969		2,567
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		4,486		4,486		4,580
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		1,100
Loans and leases receivable		174,509		174,509		166,393
Current year, charge-offs		0		0		0
Fiscal year before current year, charge-offs		0		0		0
Two years before current fiscal year, charge-offs		0		0		0
Three years before current fiscal year, charge-offs		0		0		0
Four years before current fiscal year, charge-offs		0		0		0
Prior, charge-offs		0		0		0
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		0		0		0
Construction loans: | Pass | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		9,235		9,235		17,594
Fiscal year before current year		18,651		18,651		138,797
Two years before current year		133,969		133,969		2,567
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		4,486		4,486		4,580
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		1,100
Loans and leases receivable		166,341		166,341		164,638
Construction loans: | Special mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		1,755
Fiscal year before current year		8,168		8,168		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		0		0		0
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		8,168		8,168		1,755
Construction loans: | Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		0		0		0
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		0		0		0
Construction loans: | Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		0		0		0
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		0		0		0
Consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		123,142		123,142		279,205
Fiscal year before current year		198,753		198,753		485,442
Two years before current year		408,942		408,942		292,989
Three years before current year		236,544		236,544		57,587
Four years before current year		42,423		42,423		56,581
Prior		148,475		148,475		117,532
Revolving loans amortized cost basis		97,081		97,081		108,695
Revolving loans converted to term		8		8		0
Loans and leases receivable		1,255,368		1,255,368		1,398,031
Current year, charge-offs		425		2,307		7,728
Fiscal year before current year, charge-offs		2,432		5,837		24,605
Two years before current fiscal year, charge-offs		5,219		17,450		23,984
Three years before current fiscal year, charge-offs		3,311		12,099		5,590
Four years before current fiscal year, charge-offs		553		2,286		6,797
Prior, charge-offs		575		3,415		1,307
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		12,515		43,394		70,011
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		500,786		500,786		484,435
Loans and leases receivable, charge-offs		19	42	38	69
Residential real estate | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		41,341		41,341		22,613
Fiscal year before current year		22,226		22,226		173,774
Two years before current year		166,957		166,957		132,857
Three years before current year		126,076		126,076		6,687
Four years before current year		6,190		6,190		16,053
Prior		84,782		84,782		75,426
Revolving loans amortized cost basis		53,214		53,214		57,025
Revolving loans converted to term		0		0		0
Loans and leases receivable		500,786		500,786		484,435
Current year, charge-offs		0		0		0
Fiscal year before current year, charge-offs		0		0		0
Two years before current fiscal year, charge-offs		0		0		0
Three years before current fiscal year, charge-offs		0		0		0
Four years before current fiscal year, charge-offs		0		0		0
Prior, charge-offs		19		38		69
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		19		38		69
Residential real estate | Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		41,200		41,200		22,613
Fiscal year before current year		21,946		21,946		173,424
Two years before current year		165,563		165,563		131,621
Three years before current year		124,381		124,381		6,458
Four years before current year		5,957		5,957		15,508
Prior		80,700		80,700		71,433
Revolving loans amortized cost basis		53,214		53,214		56,844
Revolving loans converted to term		0		0		0
Loans and leases receivable		492,961		492,961		477,901
Residential real estate | Consumer | Non-performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		141		141		0
Fiscal year before current year		280		280		350
Two years before current year		1,394		1,394		1,236
Three years before current year		1,695		1,695		229
Four years before current year		233		233		545
Prior		4,082		4,082		3,993
Revolving loans amortized cost basis		0		0		181
Revolving loans converted to term		0		0		0
Loans and leases receivable		7,825		7,825		6,534
Manufactured housing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		34,481		34,481		38,670
Loans and leases receivable, charge-offs		0	0	0	0
Manufactured housing | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		98
Prior		34,481		34,481		38,572
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		34,481		34,481		38,670
Current year, charge-offs		0		0		0
Fiscal year before current year, charge-offs		0		0		0
Two years before current fiscal year, charge-offs		0		0		0
Three years before current fiscal year, charge-offs		0		0		0
Four years before current fiscal year, charge-offs		0		0		0
Prior, charge-offs		0		0		0
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		0		0		0
Manufactured housing | Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		98
Prior		32,969		32,969		36,464
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		32,969		32,969		36,562
Manufactured housing | Consumer | Non-performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		0		0		0
Fiscal year before current year		0		0		0
Two years before current year		0		0		0
Three years before current year		0		0		0
Four years before current year		0		0		0
Prior		1,512		1,512		2,108
Revolving loans amortized cost basis		0		0		0
Revolving loans converted to term		0		0		0
Loans and leases receivable		1,512		1,512		2,108
Installment
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		720,101		720,101		874,926
Loans and leases receivable, charge-offs		12,496	$ 18,932	43,356	$ 52,031
Installment | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		81,801		81,801		256,592
Fiscal year before current year		176,527		176,527		311,668
Two years before current year		241,985		241,985		160,132
Three years before current year		110,468		110,468		50,900
Four years before current year		36,233		36,233		40,430
Prior		29,212		29,212		3,534
Revolving loans amortized cost basis		43,867		43,867		51,670
Revolving loans converted to term		8		8		0
Loans and leases receivable		720,101		720,101		874,926
Current year, charge-offs		425		2,307		7,728
Fiscal year before current year, charge-offs		2,432		5,837		24,605
Two years before current fiscal year, charge-offs		5,219		17,450		23,984
Three years before current fiscal year, charge-offs		3,311		12,099		5,590
Four years before current fiscal year, charge-offs		553		2,286		6,797
Prior, charge-offs		556		3,377		1,238
Revolving loans amortized cost basis, charge-offs		0		0		0
Revolving loans converted to term, charge-offs		0		0		0
Loans and leases receivable, charge-offs		12,496		43,356		69,942
Installment | Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		81,762		81,762		253,958
Fiscal year before current year		174,647		174,647		307,566
Two years before current year		240,433		240,433		158,381
Three years before current year		109,349		109,349		50,354
Four years before current year		35,925		35,925		39,953
Prior		28,770		28,770		3,448
Revolving loans amortized cost basis		43,757		43,757		51,480
Revolving loans converted to term		8		8		0
Loans and leases receivable		714,651		714,651		865,140
Installment | Consumer | Non-performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current year		39		39		2,634
Fiscal year before current year		1,880		1,880		4,102
Two years before current year		1,552		1,552		1,751
Three years before current year		1,119		1,119		546
Four years before current year		308		308		477
Prior		442		442		86
Revolving loans amortized cost basis		110		110		190
Revolving loans converted to term		0		0		0
Loans and leases receivable		5,450		5,450		9,786
Specialized lending | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivable		$ 5,468,507		$ 5,468,507		$ 5,006,693

LOANS AND LEASES RECEIVABLE _10

LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Schedule of Loan Purchases and Sales (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	$ 70,578	$ 101,735	$ 121,222	$ 750,400
Sales	$ 53,021	$ 12,396	$ 76,729	$ 535,832
Purchase price as a percentage of loans outstanding	95.90%	100%	97.50%	87.70%
Gain (loss) on sale of consumer loans	$ 0	$ 200	$ (200)	$ 200
Loss on sale of capital call lines of credit	0	0	0	5,037
Specialized lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	0	0	0	631,252
Sales	0	0	0	287,185
Capital calls lines of credit				670,000
Specialized lending | Loans Held-for-Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Capital calls lines of credit				280,700
Specialized lending | Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Capital calls lines of credit				389,300
Other commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	602	4,977	8,005	15,285
Sales	0	6,725	23,708	54,083
Commercial real estate owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	0	0	0	2,867
Sales	0	5,671	0	24,522
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	0	0	0	4,238
Personal installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	69,976	0	113,217	0
Sales	53,021	0	53,021	0
Other installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases	0	96,758	0	96,758
Sales	0	0	0	154,042
Commercial real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Sales	$ 0	$ 0	$ 0	$ 16,000

LEASES - Lessee Narrative (Deta

LEASES - Lessee Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Lessee, Lease, Description [Line Items]
Lessee, operating lease, renewal term	10 years		10 years
Operating cash flows from operating leases	$ 1.3	$ 1.3	$ 3.8	$ 4.4
Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, remaining lease term	6 months		6 months
Lessee, operating lease, term	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, remaining lease term	11 years		11 years
Lessee, operating lease, term	10 years		10 years

LEASES - Right-of-Use Assets an

LEASES - Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
ASSETS
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Operating lease ROU assets	$ 35,901	$ 15,644
LIABILITIES
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities
Operating lease liabilities	$ 37,993	$ 18,048

LEASES - Lease, Cost (Details)

LEASES - Lease, Cost (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Leases [Abstract]
Operating lease cost	$ 1,792,000	$ 1,260,000	$ 4,277,000	$ 3,775,000
Variable lease cost	$ 0	$ 0	$ 0	$ 0

LEASES - Maturities of Non-Canc

LEASES - Maturities of Non-Cancelable Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Leases [Abstract]
2024	$ 1,507
2025	5,668
2026	6,328
2027	5,833
2028	5,207
Thereafter	21,187
Total minimum payments	45,730
Less: interest	7,737
Present value of lease liabilities	$ 37,993	$ 18,048

LEASES - Summary of Lease Term

LEASES - Summary of Lease Term and Discount Rate (Details)	Sep. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Operating lease, weighted average remaining lease term (years)	8 years 7 months 6 days	5 years 7 months 6 days
Operating lease, weighted average discount rate, percent	4.08%	3.28%

LEASES - Lessor Narrative (Deta

LEASES - Lessor Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Lessor, Lease, Description [Line Items]
Interest income from sales-type and direct financing leases	$ 14.3		$ 14.3
Interest income from sales-type and direct financing leases	$ 9.9	$ 7.1	$ 27	$ 21.4
Minimum
Lessor, Lease, Description [Line Items]
Lessor, lease, term of contract (years)	24 months		24 months
Maximum
Lessor, Lease, Description [Line Items]
Lessor, lease, term of contract (years)	120 months		120 months

LEASES - Lessor, Lease Receivab

LEASES - Lessor, Lease Receivables and Investment in Operating Leases and their Corresponding Balance Sheet Location (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Direct financing and sales-type leases
Lease receivables	$ 243,859	$ 190,559
Guaranteed residual assets	21,878	15,783
Unguaranteed residual assets	10,467	10,010
Deferred initial direct costs	1,348	1,213
Unearned income	(23,208)	(11,891)
Net investment in direct financing and sales-type leases	254,344	205,674
Operating leases
Investment in operating leases	287,575	282,208
Accumulated depreciation	(88,636)	(77,672)
Deferred initial direct costs	957	1,192
Net investment in operating leases	199,896	205,728
Total lease assets	$ 454,240	$ 411,402

LEASES - Schedule of Operating

LEASES - Schedule of Operating Lease and Direct Financing Receivables (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Operating leases
2024	$ 11,314
2025	41,979
2026	47,551
2027	34,377
2028	57,173
Thereafter	35,968
Total minimum payments	228,362
Direct financing and sales-type leases
2024	19,302
2025	63,374
2026	56,173
2027	47,608
2028	29,881
Thereafter	27,521
Total minimum payments	243,859
Less: interest	(23,208)
Present value of lease receivables	$ 220,651

DEPOSITS - Components of Deposi

DEPOSITS - Components of Deposits (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deposits, by Component, Alternative [Abstract]
Demand, non-interest bearing	$ 4,670,809	$ 4,422,494
Demand, interest bearing	5,606,500	5,580,527
Savings, including money market deposit accounts	5,360,996	4,629,336
Time	2,431,084	3,287,879
Total deposits	$ 18,069,389	$ 17,920,236

DEPOSITS - Schedule of Time Dep

DEPOSITS - Schedule of Time Deposit Maturities (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deposit [Abstract]
2024	$ 145,935
2025	771,882
2026	550,209
2027	305,184
2028	397,761
Thereafter	260,113
Total time deposits	$ 2,431,084	$ 3,287,879

DEPOSITS - Narrative (Detail)

DEPOSITS - Narrative (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Deposit Liability [Line Items]
Time deposits greater than $250,000	$ 643	$ 186.3
Demand deposit overdrafts reclassified as loans	1.2	1.2
State and municipal deposits	1,500	1,100
Asset Pledged as Collateral
Deposit Liability [Line Items]
Available borrowing capacity through FHLB	$ 1,400	$ 1,100

BORROWINGS - Short-term Borrowi

BORROWINGS - Short-term Borrowings (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
Total short-term debt	$ 0	$ 0

BORROWINGS - Summary of Bancorp

BORROWINGS - Summary of Bancorp's Short-term Borrowings (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
FRB advances
Short-term Debt [Line Items]
Maximum outstanding at any month end	$ 0	$ 0
Average balance during the period	$ 0	$ 120,099
Weighted-average interest rate during the period	0%	5.23%
FHLB advances
Short-term Debt [Line Items]
Maximum outstanding at any month end	$ 150,000	$ 0
Average balance during the period	$ 11,496	$ 87,407
Weighted-average interest rate during the period	5.74%	5.16%
Federal funds purchased
Short-term Debt [Line Items]
Maximum outstanding at any month end	$ 0	$ 0
Average balance during the period	$ 0	$ 3,781
Weighted-average interest rate during the period	0%	4.97%

BORROWINGS - Narrative (Detail)

BORROWINGS - Narrative (Detail) - USD ($) $ in Billions	Sep. 30, 2024	Dec. 31, 2023
Federal funds purchased
Debt Instrument [Line Items]
Aggregate availability under federal funds line	$ 1.7	$ 1.7

BORROWINGS - FHLB and FRB Advan

BORROWINGS - FHLB and FRB Advances (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
FHLB advances	$ 1,105,000
Amount
2024	0
2025	200,000
2026	200,000
2027	450,000
2028	180,000
Thereafter	75,000
FHLB advances	$ 1,105,000
Rate
2024	0
2025	4.45%
2026	4.32%
2027	3.70%
2028	4.75%
Thereafter	5.55%
Total maximum borrowing capacity with the FHLB	$ 3,565,068	$ 3,474,347
Total maximum borrowing capacity with the FRB	4,180,824	3,436,000
Qualifying loans and securities serving as collateral against FHLB and FRB advances	12,496,815	11,889,120
Qualifying Assets Pledged as Collateral
Rate
Qualifying loans and securities serving as collateral against FHLB and FRB advances	9,508,135	8,575,137
FHLB advances
Debt Instrument [Line Items]
Total long-term debt	$ 1,117,229	$ 1,203,207
FHLB advances, rate	4.24%	3.91%
Unamortized basis adjustments from interest rate swaps designated as fair value hedges of long-term advances from FHLB	$ 12,200	$ 3,200
FHLB Advance Due March 2028
Debt Instrument [Line Items]
FHLB advances	950,000
Amount
FHLB advances	950,000
FHLB Advance Due June 2029
Debt Instrument [Line Items]
FHLB advances	155,000
Amount
FHLB advances	$ 155,000

BORROWINGS - Long-term Debt (De

BORROWINGS - Long-term Debt (Details) - USD ($)	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Senior Notes
Debt Instrument [Line Items]
Carrying Amount	$ 99,033,000	$ 123,840,000
Senior Subordinated Notes
Debt Instrument [Line Items]
Carrying Amount	182,439,000	182,230,000
Maturing August 2031 | Senior Notes
Debt Instrument [Line Items]
Carrying Amount	$ 99,033,000	98,928,000
Rate	2.875%
Issued Amount	$ 100,000,000
Price	100%
Spread on variable interest rate	2.35%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
Maturing September 2024 | Senior Notes
Debt Instrument [Line Items]
Carrying Amount	$ 0	24,912,000
Rate	4.50%
Issued Amount	$ 25,000,000
Price	100%
Maturing December 2034 | Senior Subordinated Notes
Debt Instrument [Line Items]
Carrying Amount	$ 72,902,000	72,766,000
Rate	5.375%
Issued Amount	$ 74,750,000
Price	100%
Maturing June 2029 | Senior Subordinated Notes
Debt Instrument [Line Items]
Carrying Amount	$ 109,537,000	$ 109,464,000
Rate	6.125%
Issued Amount	$ 110,000,000
Price	100%
Spread on variable interest rate	3.443%

SHAREHOLDERS_ EQUITY - Narrativ

SHAREHOLDERS’ EQUITY - Narrative (Detail) $ in Thousands		3 Months Ended		9 Months Ended
	Jun. 26, 2024 shares	Sep. 30, 2024 USD ($) series shares	Sep. 30, 2023 shares	Sep. 30, 2024 USD ($) series shares	Sep. 30, 2023 USD ($) shares	Dec. 31, 2023 series
Equity [Abstract]
Stock repurchase program, number of shares authorized to be repurchased	497,509
Extension period	1 year
Repurchase of common shares (in shares)		373,974	0	373,974	1,379,883
Repurchase of common shares | $		$ 18,210		$ 18,210	$ 39,806
Preferred stock, number of series outstanding | series		2		2		2

SHAREHOLDERS_ EQUITY - Preferre

SHAREHOLDERS’ EQUITY - Preferred Stock and Dividends Paid Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Capital Unit [Line Items]
Preferred stock, shares issued (shares)	5,700,000		5,700,000		5,700,000
Preferred stock, value	$ 137,794		$ 137,794		$ 137,794
Series E Preferred Stock
Capital Unit [Line Items]
Preferred stock, shares issued (shares)	2,300,000		2,300,000		2,300,000
Preferred stock, value	$ 55,593		$ 55,593		$ 55,593
Initial Fixed Rate			6.45%
Floating rate of Three-Month SOFR Plus			5.14%
Preferred stock, dividends, per share, cash paid (usd per share)	$ 0.678761	$ 0.6831	$ 2.060879	$ 1.941704
Series F Preferred Stock
Capital Unit [Line Items]
Preferred stock, shares issued (shares)	3,400,000		3,400,000		3,400,000
Preferred stock, value	$ 82,201		$ 82,201		$ 82,201
Initial Fixed Rate			6%
Floating rate of Three-Month SOFR Plus			4.762%
Preferred stock, dividends, per share, cash paid (usd per share)	$ 0.654873	$ 0.658950	$ 1.988429	$ 1.869779

REGULATORY CAPITAL - Narrative

REGULATORY CAPITAL - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2021
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer to risk weighted assets	2.50%
Cumulative Effect, Period of Adoption, Adjustment
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cumulative capital transition impact		$ 61.6
Capital transition provisions, benefit recognized, excluding amount previously phased in	$ 15.4

REGULATORY CAPITAL - Summary of

REGULATORY CAPITAL - Summary of Capital Amounts, Tier 1 Risk Based and Tier 1 Leveraged Ratios (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity Tier 1 capital (to risk weighted assets), Actual Amount	$ 1,777,683	$ 1,661,149
Tier 1 capital (to risk weighted assets), Actual Amount	1,915,476	1,798,942
Total capital (to risk weighted assets), Actual Amount	2,191,266	2,076,550
Tier 1 capital (to average assets), Actual Amount	$ 1,915,476	$ 1,798,942
Common equity Tier 1 (to risk weighted assets), Actual Ratio	12.463%	12.23%
Tier 1 capital (to risk weighted assets), Actual Ratio	0.13429	0.13245
Total capital (to risk weighted assets), Actual Ratio	0.15362	0.15289
Tier 1 capital (to average assets), Actual Ratio	0.08947	0.08375
Common equity Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes Amount	$ 641,885	$ 611,200
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes Amount	855,847	814,933
Total capital (to risk weighted assets), For Capital Adequacy Purposes Amount	1,141,129	1,086,578
Tier 1 capital (to average assets), For Capital Adequacy Purposes Amount	$ 856,386	$ 859,189
Common equity Tier 1 (to risk weighted assets), For Capital Adequacy Purposes Ratio	4.50%	4.50%
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes Ratio	0.06000	0.06000
Total capital (to risk weighted assets), For Capital Adequacy Purposes Ratio	0.08000	0.08000
Tier 1 capital (to average assets), For Capital Adequacy Purposes Ratio	0.04000	0.04000
Common equity Tier 1 (to risk weighted assets), for Basel III amount	$ 998,488	$ 950,755
Tier 1 (to risk weighted assets) Required for Basel III amount	1,212,450	1,154,489
Total capital (to risk weighted assets), for Basel III amount	1,497,732	1,426,133
Tier 1 (to risk average assets), for Basel III amount	$ 856,386	$ 859,189
Common equity Tier 1 (to risk weighted assets), for Basel III ratio	7%	7%
Tier 1 capital (to risk weighted assets), for Basel III ratio	8.50%	8.50%
Total capital (to risk weighted assets), for Basel III ratio	10.50%	10.50%
Tier 1 capital (to average assets), for Basel III ratio	4%	4%
Customers Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity Tier 1 capital (to risk weighted assets), Actual Amount	$ 1,943,059	$ 1,868,360
Tier 1 capital (to risk weighted assets), Actual Amount	1,943,059	1,868,360
Total capital (to risk weighted assets), Actual Amount	2,145,947	2,073,202
Tier 1 capital (to average assets), Actual Amount	$ 1,943,059	$ 1,868,360
Common equity Tier 1 (to risk weighted assets), Actual Ratio	13.636%	13.773%
Tier 1 capital (to risk weighted assets), Actual Ratio	0.13636	0.13773
Total capital (to risk weighted assets), Actual Ratio	0.15060	0.15283
Tier 1 capital (to average assets), Actual Ratio	0.09082	0.08708
Common equity Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes Amount	$ 641,212	$ 610,453
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes Amount	854,949	813,937
Total capital (to risk weighted assets), For Capital Adequacy Purposes Amount	1,139,932	1,085,250
Tier 1 capital (to average assets), For Capital Adequacy Purposes Amount	$ 855,807	$ 858,225
Common equity Tier 1 (to risk weighted assets), For Capital Adequacy Purposes Ratio	4.50%	4.50%
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes Ratio	0.06000	0.06000
Total capital (to risk weighted assets), For Capital Adequacy Purposes Ratio	0.08000	0.08000
Tier 1 capital (to average assets), For Capital Adequacy Purposes Ratio	0.04000	0.04000
Common equity Tier 1 Capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 926,125	$ 881,765
Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	1,139,932	1,085,250
Total capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	1,424,916	1,356,562
Tier 1 capital (to average assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 1,069,759	$ 1,072,782
Common equity Tier 1 (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.50%	6.50%
Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	0.08000	0.08000
Total capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	0.10000	0.10000
Tier 1 capital (to average assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	0.05000	0.05000
Common equity Tier 1 (to risk weighted assets), for Basel III amount	$ 997,441	$ 949,594
Tier 1 (to risk weighted assets) Required for Basel III amount	1,211,178	1,153,078
Total capital (to risk weighted assets), for Basel III amount	1,496,161	1,424,390
Tier 1 (to risk average assets), for Basel III amount	$ 855,807	$ 858,225
Common equity Tier 1 (to risk weighted assets), for Basel III ratio	7%	7%
Tier 1 capital (to risk weighted assets), for Basel III ratio	8.50%	8.50%
Total capital (to risk weighted assets), for Basel III ratio	10.50%	10.50%
Tier 1 capital (to average assets), for Basel III ratio	4%	4%

DISCLOSURES ABOUT FAIR VALUE _3

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Narrative (Detail)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Loans held for sale, number of days held prior to sale (up to)	90 days
Loans held for sale, average life from purchase to sale	30 days

DISCLOSURES ABOUT FAIR VALUE _4

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets:
Cash and cash equivalents, Carrying Amount	$ 3,088,022	$ 3,846,346
Cash and cash equivalents, Estimated Fair Value	3,088,022	3,846,346
Debt securities, available for sale	2,377,733	2,376,860
Debt securities, held to maturity	1,064,437	1,103,170
Debt securities, held to maturity, fair value	1,027,514	1,046,439
Loans held for sale	275,420	340,317
Total loans and leases receivable, net of allowance for credit losses on loans and leases, Carrying Amount	13,644,538	12,726,456
Total loans and leases receivable, net of allowance for credit losses on loans and leases, Estimated Fair Value	13,511,102	12,513,386
FHLB, Federal Reserve Bank and other restricted stock, Carrying Amount	95,035	109,548
FHLB, Federal Reserve Bank and other restricted stock, Estimated Fair Value	95,035	109,548
Derivative assets	15,546	17,931
Liabilities:
Deposits, Carrying Amount	18,069,389	17,920,236
Deposits, Estimated Fair Value	18,096,656	17,922,005
FHLB advances, Carrying Amount	1,117,229	1,203,207
FHLB advances, Estimated Fair Value	1,121,074	1,188,517
Other borrowings, Carrying Amount	99,033	123,840
Other borrowings, Estimated Fair Value	78,000	103,674
Subordinated debt, Carrying Amount	182,439	182,230
Subordinated debt, Estimated Fair Value	157,542	164,233
Derivative liabilities	21,486	27,110
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Cash and cash equivalents, Estimated Fair Value	3,088,022	3,846,346
Debt securities, available for sale	0	0
Debt securities, held to maturity, fair value	0	0
Loans held for sale	0	0
Total loans and leases receivable, net of allowance for credit losses on loans and leases, Estimated Fair Value	0	0
FHLB, Federal Reserve Bank and other restricted stock, Estimated Fair Value	0	0
Derivative assets	0	0
Liabilities:
Deposits, Estimated Fair Value	15,638,305	14,632,357
FHLB advances, Estimated Fair Value	0	0
Other borrowings, Estimated Fair Value	0	0
Subordinated debt, Estimated Fair Value	0	0
Derivative liabilities	0	0
Significant Other Observable Inputs (Level 2)
Assets:
Cash and cash equivalents, Estimated Fair Value	0	0
Debt securities, available for sale	2,360,908	2,341,911
Debt securities, held to maturity, fair value	487,238	472,311
Loans held for sale	2,523	1,215
Total loans and leases receivable, net of allowance for credit losses on loans and leases, Estimated Fair Value	1,250,413	897,912
FHLB, Federal Reserve Bank and other restricted stock, Estimated Fair Value	95,035	109,548
Derivative assets	15,474	17,906
Liabilities:
Deposits, Estimated Fair Value	2,458,351	3,289,648
FHLB advances, Estimated Fair Value	1,121,074	1,188,517
Other borrowings, Estimated Fair Value	78,000	103,674
Subordinated debt, Estimated Fair Value	157,542	164,233
Derivative liabilities	21,486	27,110
Significant Unobservable Inputs (Level 3)
Assets:
Cash and cash equivalents, Estimated Fair Value	0	0
Debt securities, available for sale	16,825	34,949
Debt securities, held to maturity, fair value	540,276	574,128
Loans held for sale	272,897	339,102
Total loans and leases receivable, net of allowance for credit losses on loans and leases, Estimated Fair Value	12,260,689	11,615,474
FHLB, Federal Reserve Bank and other restricted stock, Estimated Fair Value	0	0
Derivative assets	72	25
Liabilities:
Deposits, Estimated Fair Value	0	0
FHLB advances, Estimated Fair Value	0	0
Other borrowings, Estimated Fair Value	0	0
Subordinated debt, Estimated Fair Value	0	0
Derivative liabilities	$ 0	$ 0

DISCLOSURES ABOUT FAIR VALUE _5

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Summary of Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets
Fair Value	$ 2,377,733	$ 2,376,860
Fair Value, Measurements, Recurring
Assets
Assets, fair value	3,863,313	3,481,980
Fair Value, Measurements, Nonrecurring
Assets
Assets, fair value	18,003	2,373
Asset-backed securities
Assets
Fair Value	37,670	92,629
Asset-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	37,670	92,629
Agency-guaranteed residential mortgage-backed securities
Assets
Fair Value	221,178
Agency-guaranteed residential mortgage-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	221,178
Agency-guaranteed residential collateralized mortgage obligations
Assets
Fair Value	194,873	116,908
Agency-guaranteed residential collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	194,873	116,908
Agency-guaranteed commercial collateralized mortgage obligations
Assets
Fair Value	96,943
Agency-guaranteed commercial collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	96,943
Collateralized loan obligations
Assets
Fair Value	310,429	489,092
Collateralized loan obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	310,429	489,092
Commercial mortgage-backed securities
Assets
Fair Value	77,074	121,636
Commercial mortgage-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	77,074	121,636
Corporate notes
Assets
Fair Value	594,971	583,034
Corporate notes | Fair Value, Measurements, Recurring
Assets
Fair Value	594,971	583,034
Private label collateralized mortgage obligations
Assets
Fair Value	844,595	973,561
Private label collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	844,595	973,561
Derivatives | Fair Value, Measurements, Recurring
Assets
Assets, fair value	15,546	17,931
Loans held for sale – fair value option | Fair Value, Measurements, Recurring
Assets
Assets, fair value	219,621	189,277
Loans receivable, mortgage finance – fair value option | Fair Value, Measurements, Recurring
Assets
Assets, fair value	1,250,413	897,912
Derivatives  | Fair Value, Measurements, Recurring
Liabilities
Financial liabilities, fair value	21,486	27,110
Collateral-dependent loans | Fair Value, Measurements, Nonrecurring
Assets
Assets, fair value	18,003	2,373
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring
Assets
Assets, fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Nonrecurring
Assets
Assets, fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Agency-guaranteed residential mortgage-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Agency-guaranteed residential collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Agency-guaranteed commercial collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateralized loan obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial mortgage-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate notes | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Private label collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Derivatives | Fair Value, Measurements, Recurring
Assets
Assets, fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans held for sale – fair value option | Fair Value, Measurements, Recurring
Assets
Assets, fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans receivable, mortgage finance – fair value option | Fair Value, Measurements, Recurring
Assets
Assets, fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Derivatives  | Fair Value, Measurements, Recurring
Liabilities
Financial liabilities, fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral-dependent loans | Fair Value, Measurements, Nonrecurring
Assets
Assets, fair value	0	0
Significant Other Observable Inputs (Level 2)
Assets
Fair Value	2,360,908	2,341,911
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring
Assets
Assets, fair value	3,629,318	3,258,944
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring
Assets
Assets, fair value	0	0
Significant Other Observable Inputs (Level 2) | Asset-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	20,845	57,680
Significant Other Observable Inputs (Level 2) | Agency-guaranteed residential mortgage-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	221,178
Significant Other Observable Inputs (Level 2) | Agency-guaranteed residential collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	194,873	116,908
Significant Other Observable Inputs (Level 2) | Agency-guaranteed commercial collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	96,943
Significant Other Observable Inputs (Level 2) | Collateralized loan obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	310,429	489,092
Significant Other Observable Inputs (Level 2) | Commercial mortgage-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	77,074	121,636
Significant Other Observable Inputs (Level 2) | Corporate notes | Fair Value, Measurements, Recurring
Assets
Fair Value	594,971	583,034
Significant Other Observable Inputs (Level 2) | Private label collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	844,595	973,561
Significant Other Observable Inputs (Level 2) | Derivatives | Fair Value, Measurements, Recurring
Assets
Assets, fair value	15,474	17,906
Significant Other Observable Inputs (Level 2) | Loans held for sale – fair value option | Fair Value, Measurements, Recurring
Assets
Assets, fair value	2,523	1,215
Significant Other Observable Inputs (Level 2) | Loans receivable, mortgage finance – fair value option | Fair Value, Measurements, Recurring
Assets
Assets, fair value	1,250,413	897,912
Significant Other Observable Inputs (Level 2) | Derivatives  | Fair Value, Measurements, Recurring
Liabilities
Financial liabilities, fair value	21,486	27,110
Significant Other Observable Inputs (Level 2) | Collateral-dependent loans | Fair Value, Measurements, Nonrecurring
Assets
Assets, fair value	0	0
Significant Unobservable Inputs (Level 3)
Assets
Fair Value	16,825	34,949
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring
Assets
Assets, fair value	233,995	223,036
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring
Assets
Assets, fair value	18,003	2,373
Significant Unobservable Inputs (Level 3) | Asset-backed securities
Assets
Fair Value	16,825	34,949
Significant Unobservable Inputs (Level 3) | Asset-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	16,825	34,949
Significant Unobservable Inputs (Level 3) | Agency-guaranteed residential mortgage-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	0
Significant Unobservable Inputs (Level 3) | Agency-guaranteed residential collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Significant Unobservable Inputs (Level 3) | Agency-guaranteed commercial collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	0
Significant Unobservable Inputs (Level 3) | Collateralized loan obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Significant Unobservable Inputs (Level 3) | Commercial mortgage-backed securities | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Significant Unobservable Inputs (Level 3) | Corporate notes | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Significant Unobservable Inputs (Level 3) | Private label collateralized mortgage obligations | Fair Value, Measurements, Recurring
Assets
Fair Value	0	0
Significant Unobservable Inputs (Level 3) | Derivatives | Fair Value, Measurements, Recurring
Assets
Assets, fair value	72	25
Significant Unobservable Inputs (Level 3) | Loans held for sale – fair value option | Fair Value, Measurements, Recurring
Assets
Assets, fair value	217,098	188,062
Significant Unobservable Inputs (Level 3) | Loans receivable, mortgage finance – fair value option | Fair Value, Measurements, Recurring
Assets
Assets, fair value	0	0
Significant Unobservable Inputs (Level 3) | Derivatives  | Fair Value, Measurements, Recurring
Liabilities
Financial liabilities, fair value	0	0
Significant Unobservable Inputs (Level 3) | Collateral-dependent loans | Fair Value, Measurements, Nonrecurring
Assets
Assets, fair value	$ 18,003	$ 2,373

DISCLOSURES ABOUT FAIR VALUE _6

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Statement of Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis (Detail) - Significant Unobservable Inputs (Level 3) - Asset-backed securities - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Asset-backed securities
Balance at beginning of period	$ 21,862	$ 51,825	$ 34,949	$ 73,266
Principal payments and premium amortization	(5,704)	(10,023)	(19,652)	(31,683)
Increase in allowance for credit losses	(24)	(442)	(24)	(1,488)
Decrease in allowance for credit losses	84	250	200	311
Change in fair value recognized in OCI	607	755	1,352	1,959
Balance at end of period	$ 16,825	$ 42,365	$ 16,825	$ 42,365

DISCLOSURES ABOUT FAIR VALUE _7

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Statement of Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - Significant Unobservable Inputs (Level 3) - Fair Value, Measurements, Recurring - Other Installment Loans - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Other Installment Loans
Balance at beginning of period	$ 247,442	$ 0	$ 188,062	$ 0
Originations	223,625	0	704,081	0
Sales	(200,041)	0	(518,271)	0
Principal payments	(53,928)	0	(156,774)	0
Change in fair value recognized in earnings	0	0	0	0
Balance at end of period	$ 217,098	$ 0	$ 217,098	$ 0

DISCLOSURES ABOUT FAIR VALUE _8

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Summary of Financial Assets and Financial Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis (Detail) $ in Thousands	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 2,377,733	$ 2,376,860
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	16,825	34,949
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	37,670	92,629
Asset-backed securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 16,825	$ 34,949
Minimum | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Discount rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.09	0.12
Minimum | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Annualized loss rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.03	0.03
Minimum | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Constant prepayment rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.19	0.11
Maximum | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Discount rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.10	0.14
Maximum | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Annualized loss rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.13	0.13
Maximum | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Constant prepayment rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.20	0.30
Weighted Average | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Discount rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.09	0.13
Weighted Average | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Annualized loss rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.05	0.05
Weighted Average | Asset-backed securities | Significant Unobservable Inputs (Level 3) | Constant prepayment rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.20	0.26

DERIVATIVE INSTRUMENTS AND HE_3

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Detail) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024 USD ($) derivative	Sep. 30, 2024 USD ($) derivative	Sep. 30, 2023 USD ($) derivative	Dec. 31, 2023 USD ($) derivative
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, net liability position, aggregate fair value	$ 5,600	$ 5,600
Cash collateral received	6,100	6,100
Interest rate derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Cash collateral received	$ 5,568	$ 5,568		$ 16,939
Interest rate derivatives | Derivative Designated as Hedging Instrument | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Number of outstanding interest rate derivatives | derivative	43	43		6
Aggregate notional amount	$ 2,300,000	$ 2,300,000		$ 472,500
Number of interest rate derivatives entered into during the period | derivative	12	37	5
Notional amount of derivatives entered into during the period	$ 431,600	$ 1,800,000	$ 1,000,000
Number of interest rate derivatives terminated | derivative			2
Aggregate notional amount, terminated			$ 550,000
Notional amount of basis adjustments			$ 4,600
Interest rate swaps | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate notional amount	$ 1,300,000	$ 1,300,000		$ 1,200,000
Number of derivative instruments held | derivative	130	130		132
Interest rate caps | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate notional amount	$ 55,600	$ 55,600		$ 55,600
Number of derivative instruments held | derivative	2	2		2

DERIVATIVE INSTRUMENTS AND HE_4

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Cumulative Basis Adjustment for Fair Value Hedges (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
AFS debt securities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amortized Cost	$ 22,500	$ 22,500
Cumulative Amount of Fair Value Hedging Adjustment to Hedged Items	202	941
Deposits
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amortized Cost	1,614,617	300,000
Cumulative Amount of Fair Value Hedging Adjustment to Hedged Items	22,191	1,432
FHLB advances
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amortized Cost	1,200,000	700,000
Cumulative Amount of Fair Value Hedging Adjustment to Hedged Items	$ 12,229	$ 3,206

DERIVATIVE INSTRUMENTS AND HE_5

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Fair Value of Derivative Financial Instruments (Detail) - Not Designated as Hedging Instrument - Interest rate swaps and caps - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Other assets
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Assets	$ 15,473	$ 17,903
Other liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liabilities	$ 21,474	$ 27,097

DERIVATIVE INSTRUMENTS AND HE_6

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Effect of Derivative Financial Instruments on Net Income and Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative Designated as Hedging Instrument | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Income (Loss) Recognized in Earnings	$ 0	$ 0	$ 0	$ 0
Derivative Designated as Hedging Instrument | Interest rate swaps | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Income (Loss) Recognized in Earnings	42,717	6,377	54,453	13,209
Derivative Designated as Hedging Instrument | AFS debt securities | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Income (Loss) Recognized in Earnings	(306)	(196)	(739)	(446)
Derivative Designated as Hedging Instrument | Deposits | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Income (Loss) Recognized in Earnings	(23,444)	0	(25,130)	0
Derivative Designated as Hedging Instrument | FHLB advances | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Income (Loss) Recognized in Earnings	(18,967)	(6,181)	(28,584)	(12,763)
Not Designated as Hedging Instrument | Interest rate swaps and caps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Income (Loss) Recognized in Earnings	$ 374	$ 192	$ 1,109	$ 332

DERIVATIVE INSTRUMENTS AND HE_7

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Summary of Offsetting of Financial Assets and Derivative Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Offsetting Assets [Line Items]
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Received/Posted	$ (6,100)
Interest rate derivatives
Offsetting Assets [Line Items]
Gross Amounts Recognized on the Consolidated Balance Sheet	10,647	$ 17,439
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	(5,079)	(500)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Received/Posted	(5,568)	(16,939)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Net Amount	$ 0	$ 0

DERIVATIVE INSTRUMENTS AND HE_8

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Summary of Offsetting of Financial Liabilities and Derivative Liabilities (Detail) - Interest rate derivatives - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Offsetting Liabilities [Line Items]
Gross Amounts Recognized on the Consolidated Balance Sheet	$ 5,079	$ 500
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	(5,079)	(500)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Received/Posted	0	0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Net Amount	$ 0	$ 0