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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
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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
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Loans Receivable and Allowance for Credit Losses - Schedule Of Composition Of Loans Held-For-Investment (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	$ 52,767,909		$ 52,210,782
Allowance for loan losses	(683,794)	$ (670,280)	(668,743)	$ (635,400)	$ (619,893)	$ (601,673)	$ (595,645)
Loans held-for-investment, net	52,084,115		51,542,039
Net deferred loan fees and net unamortized premiums	(53,000)		(71,000)
Commercial lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	37,202,607		37,045,191
Commercial lending \| C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	16,875,009		16,581,079
Allowance for loan losses	(379,984)	(373,631)	(392,685)	(375,333)	(376,325)	(377,383)	(371,700)
Commercial lending \| CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	14,562,595		14,777,081
Allowance for loan losses	(194,794)	(187,460)	(170,592)	(168,505)	(155,067)	(150,201)	(149,864)
Commercial lending \| Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	664,793		663,868
Allowance for loan losses	(14,322)	(10,819)	(10,469)	(11,325)	(9,322)	(9,109)	(9,109)
Commercial lending \| Total CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	20,327,598		20,464,112
Commercial lending \| Multifamily residential
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	5,100,210		5,023,163
Allowance for loan losses	(40,254)	(37,418)	(34,375)	(22,938)	(24,526)	(23,379)	(23,373)
Consumer lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	15,565,302		15,165,591
Consumer lending \| HELOCs
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	1,761,379		1,722,204
Allowance for loan losses	(3,340)	(3,563)	(3,947)	(4,526)	(4,971)	(4,476)	(4,475)
Consumer lending \| Total residential mortgage
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	15,509,148		15,105,264
Consumer lending \| Other consumer
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	56,154		60,327
Allowance for loan losses	(1,577)	(1,467)	(1,657)	(1,260)	(1,675)	(1,560)	(1,560)
Consumer lending \| Single-family residential
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	13,747,769		13,383,060
Allowance for loan losses	$ (49,523)	$ (55,922)	$ (55,018)	$ (51,513)	$ (48,007)	$ (35,565)	$ (35,564)