v3.26.3
Fair Value Measurements - Schedule of Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($)
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans $ 6,976,861,000 $ 6,613,391,000
Collateralized Loan Obligations    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans 109,943,000 174,608,000
Specific Reserves | Collateralized Loan Obligations    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans 3,389,000 263,000
Fair Value, Measurements, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 181,718,000 164,348,000
Total Write Downs 20,783,000 34,183,000
Fair Value, Measurements, Nonrecurring | Loans held for sale, at lower of cost or fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 95,847,000 80,912,000
Total Write Downs 2,385,000 13,752,000
Fair Value, Measurements, Nonrecurring | Loans held for investment measured for credit deterioration using the fair value of the collateral    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 11,957,000 7,497,000
Total Write Downs 0 3,328,000
Fair Value, Measurements, Nonrecurring | Loans held for investment measured for credit deterioration using the fair value of the collateral | Commercial Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans 12,000,000.0 7,500,000
Fair Value, Measurements, Nonrecurring | Loans held for investment measured for credit deterioration using the fair value of the collateral | Specific Reserves | Collateralized Loan Obligations    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 3,400,000 300,000
Total Write Downs   3,300,000
Fair Value, Measurements, Nonrecurring | Other Real Estate Owned    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 10,044,000 15,542,000
Total Write Downs 0 1,114,000
Fair Value, Measurements, Nonrecurring | Other Real Estate Owned | Commercial Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 8,500,000 14,000,000.0
Fair Value, Measurements, Nonrecurring | Other Real Estate Owned | Residential Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 1,600,000 1,600,000
Fair Value, Measurements, Nonrecurring | Cash flow dependent loans measured for expected credit losses    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 63,870,000 60,397,000
Total Write Downs 18,398,000 15,989,000
Fair Value, Measurements, Nonrecurring | Cash flow dependent loans measured for expected credit losses | Commercial Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans 61,800,000 60,400,000
Fair Value, Measurements, Nonrecurring | Cash flow dependent loans measured for expected credit losses | Owner occupied    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans 2,100,000  
Fair Value, Measurements, Nonrecurring | Cash flow dependent loans measured for expected credit losses | Specific Reserves | Commercial Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans 15,000,000.0 2,300,000
Fair Value, Measurements, Nonrecurring | Cash flow dependent loans measured for expected credit losses | Specific Reserves | Owner occupied    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans 0  
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans held for sale, at lower of cost or fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans held for investment measured for credit deterioration using the fair value of the collateral    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Real Estate Owned    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash flow dependent loans measured for expected credit losses    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2) | Loans held for sale, at lower of cost or fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2) | Loans held for investment measured for credit deterioration using the fair value of the collateral    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2) | Other Real Estate Owned    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2) | Cash flow dependent loans measured for expected credit losses    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 0 0
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 181,718,000 164,348,000
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Loans held for sale, at lower of cost or fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 95,847,000 80,912,000
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Loans held for investment measured for credit deterioration using the fair value of the collateral    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 11,957,000 7,497,000
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other Real Estate Owned    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value 10,044,000 15,542,000
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Cash flow dependent loans measured for expected credit losses    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets measured at fair value $ 63,870,000 $ 60,397,000