v3.25.4
Loans and Allowance for Credit Losses on Loans - Loans Held for Investment by Portfolio Segment (Details) - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total $ 24,147,002,000 $ 22,542,823,000  
Unearned income (net of direct origination costs) (106,800,000) (92,757,000)  
Total loans held for investment 24,040,202,000 22,450,066,000  
Allowance for credit losses on loans (270,557,000) (271,709,000) $ (249,973,000)
Loans held for investment, net 23,769,645,000 22,178,357,000  
Loans held for sale 4,361,000 0  
Interest receivable 107,300,000 107,300,000  
Commercial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total 12,252,805,000 11,145,591,000  
Allowance for credit losses on loans (202,029,000) (198,423,000) (171,437,000)
Loans held for sale 4,361,000 0  
Mortgage finance      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total 6,064,019,000 5,215,574,000  
Allowance for credit losses on loans (6,221,000) (2,755,000) (4,173,000)
Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total 5,395,753,000 5,616,282,000  
Allowance for credit losses on loans (60,559,000) (68,825,000) (71,829,000)
Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total 434,425,000 565,376,000  
Allowance for credit losses on loans (1,748,000) (1,706,000) $ (2,534,000)
Mortgage Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans held for sale $ 0 $ 0