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Fair Value Disclosures - Schedule of Reconciliation for all Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Jan. 31, 2025
USD ($)
Total gains (losses) realized and unrealized:        
Mortgage loan servicing rights sold       $ 931,600
Mortgage loan servicing rights sold, percentage       0.263
Mortgage loan servicing rights sold, capitalized amount       $ 13,100
Mortgage loan servicing rights sold, capitalized, percentage       0.415
Holdback amount       $ 100
Transaction expense     $ 200  
Capitalized Mortgage Loan Servicing Rights        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance $ 31,493 $ 46,796 46,796  
Total gains (losses) realized and unrealized:        
Included in results of operations 10 (2,424)    
Included in results of operations - gain on sale 0 (94)    
Included in other comprehensive loss 0 0    
Purchases, issuances, settlements, maturities and calls 730 855    
Sales 0 (12,962)    
Transfers in and/or out of Level 3 0 0    
Ending balance 32,233 32,171 $ 31,493  
Amount of total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at March 31 $ 10 $ (2,424)