v3.26.1
Allowance for Credit Losses - Schedule of Amortized Cost Basis of Collateral Dependent/ Impaired Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 6,743,066 $ 6,613,391
Real estate loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 4,959,733 4,772,853
Real estate loans | Commercial real estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 2,273,350 2,448,336
Real estate loans | Nonowner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 1,526,962 1,591,861
Real estate loans | Multi-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 234,116 322,447
Real estate loans | Land development and construction loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 512,272 534,028
Real estate loans | Single-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 1,954,193 1,515,181
Real estate loans | Owner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 732,190 809,336
Commercial loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 1,488,182 1,446,406
Consumer loans and overdrafts    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 209,659 245,530
Collateralized Loan Obligations    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 166,287 174,608
Collateralized Loan Obligations | Real estate loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 112,463 119,138
Collateralized Loan Obligations | Real estate loans | Commercial real estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 24,755 56,385
Collateralized Loan Obligations | Real estate loans | Nonowner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 24,755 33,950
Collateralized Loan Obligations | Real estate loans | Multi-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 22,435
Collateralized Loan Obligations | Real estate loans | Land development and construction loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Real estate loans | Single-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 15,520 15,388
Collateralized Loan Obligations | Real estate loans | Owner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 72,188 47,365
Collateralized Loan Obligations | Commercial loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 11,652 46,794
Collateralized Loan Obligations | Loans to financial institutions and acceptances    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 34,210  
Collateralized Loan Obligations | Consumer loans and overdrafts    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 7,962 8,676
Collateralized Loan Obligations | Commercial Real Estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 136,197 113,718
Collateralized Loan Obligations | Commercial Real Estate | Real estate loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 96,943 103,750
Collateralized Loan Obligations | Commercial Real Estate | Real estate loans | Commercial real estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 24,755 56,385
Collateralized Loan Obligations | Commercial Real Estate | Real estate loans | Nonowner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 24,755 $ 33,950
Weighted-average loan-to-value 71.40% 76.90%
Collateralized Loan Obligations | Commercial Real Estate | Real estate loans | Multi-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 0 $ 22,435
Weighted-average loan-to-value   33.20%
Collateralized Loan Obligations | Commercial Real Estate | Real estate loans | Land development and construction loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 $ 0
Collateralized Loan Obligations | Commercial Real Estate | Real estate loans | Single-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 0 $ 0
Weighted-average loan-to-value 61.50% 73.70%
Collateralized Loan Obligations | Commercial Real Estate | Real estate loans | Owner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 72,188 $ 47,365
Weighted-average loan-to-value 62.10% 72.70%
Collateralized Loan Obligations | Commercial Real Estate | Commercial loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 5,044 $ 9,968
Weighted-average loan-to-value 52.60% 77.10%
Collateralized Loan Obligations | Commercial Real Estate | Loans to financial institutions and acceptances    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 34,210  
Weighted-average loan-to-value 47.50%  
Collateralized Loan Obligations | Commercial Real Estate | Consumer loans and overdrafts    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 0 $ 0
Collateralized Loan Obligations | Residential Real Estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 15,520 15,388
Collateralized Loan Obligations | Residential Real Estate | Real estate loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 15,520 15,388
Collateralized Loan Obligations | Residential Real Estate | Real estate loans | Commercial real estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Residential Real Estate | Real estate loans | Nonowner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Residential Real Estate | Real estate loans | Multi-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Residential Real Estate | Real estate loans | Land development and construction loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Residential Real Estate | Real estate loans | Single-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 15,520 15,388
Collateralized Loan Obligations | Residential Real Estate | Real estate loans | Owner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Residential Real Estate | Commercial loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Residential Real Estate | Loans to financial institutions and acceptances    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0  
Collateralized Loan Obligations | Residential Real Estate | Consumer loans and overdrafts    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Other    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 14,570 45,502
Collateralized Loan Obligations | Other | Real estate loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Other | Real estate loans | Commercial real estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Other | Real estate loans | Nonowner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Other | Real estate loans | Multi-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Other | Real estate loans | Land development and construction loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Other | Real estate loans | Single-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Other | Real estate loans | Owner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Other | Commercial loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 6,608 36,826
Collateralized Loan Obligations | Other | Loans to financial institutions and acceptances    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0  
Collateralized Loan Obligations | Other | Consumer loans and overdrafts    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 7,962 8,676
Collateralized Loan Obligations | Specific Reserves    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 2,206 263
Collateralized Loan Obligations | Specific Reserves | Real estate loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Specific Reserves | Real estate loans | Commercial real estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Specific Reserves | Real estate loans | Nonowner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Specific Reserves | Real estate loans | Multi-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Specific Reserves | Real estate loans | Land development and construction loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Specific Reserves | Real estate loans | Single-family residential    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Specific Reserves | Real estate loans | Owner occupied    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0 0
Collateralized Loan Obligations | Specific Reserves | Commercial loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 2,206 263
Collateralized Loan Obligations | Specific Reserves | Loans to financial institutions and acceptances    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 0  
Collateralized Loan Obligations | Specific Reserves | Consumer loans and overdrafts    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 0 $ 0