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Loans Receivable and Allowance for Credit Losses - Schedule Of Composition Of Loans Held-For-Investment (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | $ 56,878,172 | $ 53,726,637 |  |
ALLL | (809,773) | (702,052) | $ (668,743) | $ (595,645)
Loans held-for-investment, net | 56,068,399 | 53,024,585 |  |
Net deferred loan fees and net unamortized premiums | 26,000 | 46,000 |  |
Commercial Lending |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 39,912,528 | 37,672,102 |  |
Commercial Lending | C&I |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 18,650,755 | 17,397,158 |  |
ALLL | (475,613) | (384,319) | (392,685) | (371,700)
Commercial Lending | CRE |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 15,407,088 | 14,655,340 |  |
ALLL | (221,494) | (218,677) | (170,592) | (149,864)
Commercial Lending | Multifamily Residential |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 5,112,328 | 4,953,442 |  |
ALLL | (36,555) | (32,117) | (34,375) | (23,373)
Commercial Lending | Construction and land |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 742,357 | 666,162 |  |
ALLL | (15,468) | (17,497) | (10,469) | (9,109)
Commercial Lending | Total CRE |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 21,261,773 | 20,274,944 |  |
Consumer Lending |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 16,965,644 | 16,054,535 |  |
Consumer Lending | Single-Family Residential |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 15,002,549 | 14,175,446 |  |
ALLL | (53,463) | (44,816) | (55,018) | (35,564)
Consumer Lending | HELOCs |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 1,911,897 | 1,811,628 |  |
ALLL | (5,804) | (3,132) | (3,947) | (4,475)
Consumer Lending | Total residential mortgage |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 16,914,446 | 15,987,074 |  |
Consumer Lending | Other consumer |  |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |  |
Loans held-for-investment | 51,198 | 67,461 |  |
ALLL | $ (1,376) | $ (1,494) | $ (1,657) | $ (1,560)

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