Fair Value Disclosures - Schedule of Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Collateral dependent loans	$ 11,444,216	$ 11,650,350
Fair Value, Nonrecurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Collateral dependent loans	20,628	15,376
Mortgage servicing rights	59,997	60,339
Total assets	80,625	75,715
Fair Value, Nonrecurring | Quoted prices in active markets for identical assets (Level 1)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Collateral dependent loans	0	0
Mortgage servicing rights	0	0
Total assets	0	0
Fair Value, Nonrecurring | Significant other observable inputs (Level 2)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Collateral dependent loans	0	0
Mortgage servicing rights	0	0
Total assets	0	0
Fair Value, Nonrecurring | Significant unobservable inputs (Level 3)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Collateral dependent loans	20,628	15,376
Mortgage servicing rights	59,997	60,339
Total assets	$ 80,625	$ 75,715