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Loans Receivable and Allowance for Credit Losses - Schedule Of Carrying Value Of Loans Transferred, Loans Sold and Purchased For the Held-For-Investment Portfolio (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Loans Receivable and Allowance for Credit Losses |  |  |
Loans transferred from held-for-investment to held-for-sale | $ 331,227 | $ 659,322 | $ 739,379
Sales | 316,468 | 663,388 | 769,822
Purchases | 965,704 | 999,993 | 599,775
Write-offs of allowance for loan losses related to loans transferred to held-for-sale | 2,000 | 2,000 | 5,000
Originated |  |  |
Loans Receivable and Allowance for Credit Losses |  |  |
Sales | 219,000 | 508,000 | 513,000
Loans sold in secondary market | Purchased |  |  |
Loans Receivable and Allowance for Credit Losses |  |  |
Sales | 97,000 | 156,000 | 256,000
Commercial Lending | C&I |  |  |
Loans Receivable and Allowance for Credit Losses |  |  |
Loans transferred from held-for-investment to held-for-sale | 282,252 | 649,187 | 647,943
Sales | 264,445 | 650,256 | 674,919
Purchases | 450,314 | 612,364 | 106,493
Commercial Lending | CRE |  |  |
Loans Receivable and Allowance for Credit Losses |  |  |
Loans transferred from held-for-investment to held-for-sale | 39,475 | 9,417 | 83,282
Sales | 39,475 | 9,417 | 86,749
Purchases | 0 | 0 | 0
Commercial Lending | Construction and Land |  |  |
Loans Receivable and Allowance for Credit Losses |  |  |
Loans transferred from held-for-investment to held-for-sale | 9,500 | 718 | 8,154
Sales | 11,316 | 718 | 8,154
Purchases | 0 | 0 | 0
Consumer Lending | Single-Family Residential |  |  |
Loans Receivable and Allowance for Credit Losses |  |  |
Loans transferred from held-for-investment to held-for-sale | 0 | 0 | 0
Sales | 1,232 | 2,997 | 0
Purchases | $ 515,390 | $ 387,629 | $ 493,282

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- Definition Amount excluding accrued interest, of increase in financing receivable from purchase. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-11 + Details
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