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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Loans Receivable and Allowance for Credit Losses - Schedule Of Composition Of Loans Held-For-Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	$ 54,252,734	$ 53,726,637
Allowance for loan losses	(734,856)	(702,052)	$ (670,280)	$ (668,743)
Loans held-for-investment, net	53,517,878	53,024,585
Net deferred loan fees and net unamortized premiums	36,000	46,000
Commercial lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	37,990,704	37,672,102
Commercial lending \| C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	17,460,744	17,397,158
Allowance for loan losses	(421,288)	(384,319)	(373,631)	(392,685)
Commercial lending \| CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	14,868,361	14,655,340
Allowance for loan losses	(212,899)	(218,677)	(187,460)	(170,592)
Commercial lending \| Multifamily residential
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	5,007,969	4,953,442
Allowance for loan losses	(32,324)	(32,117)	(37,418)	(34,375)
Commercial lending \| Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	653,630	666,162
Allowance for loan losses	(15,199)	(17,497)	(10,819)	(10,469)
Commercial lending \| Total CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	20,529,960	20,274,944
Consumer lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	16,262,030	16,054,535
Consumer lending \| Single-family residential
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	14,383,562	14,175,446
Allowance for loan losses	(46,929)	(44,816)	(55,922)	(55,018)
Consumer lending \| Home equity lines of credit (“HELOCs”)
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	1,827,837	1,811,628
Allowance for loan losses	(4,879)	(3,132)	(3,563)	(3,947)
Consumer lending \| Total residential mortgage
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	16,211,399	15,987,074
Consumer lending \| Other consumer
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	50,631	67,461
Allowance for loan losses	$ (1,338)	$ (1,494)	$ (1,467)	$ (1,657)