v3.26.1
Subordinated Debentures - Preferred Trust Securities and Subordinated Debt Securities (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jan. 18, 2022
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]      
Subordinated debentures   $ 279,433 $ 279,265
Subordinated notes, net of issuance costs, issued in 2022, due 2032, fixed rate of 3.125% during the first five years and at a floating rate of 182 basis points above the then three-month SOFR rate, reset quarterly, thereafter, callable in 2027 without penalty | Variable Rate Component One      
Debt Instrument [Line Items]      
Floating rate above three-month LIBOR rate 1.82%    
Subordinated notes, net of issuance costs, issued in 2022, due 2032, fixed rate of 3.125% during the first five years and at a floating rate of 182 basis points above the then three-month SOFR rate, reset quarterly, thereafter, callable in 2027 without penalty | Subordinated debt securities      
Debt Instrument [Line Items]      
Fixed rate for first five years   3.125% 3.125%
Subordinated debentures   $ 279,433 $ 279,265
Subordinated notes, net of issuance costs, issued in 2022, due 2032, fixed rate of 3.125% during the first five years and at a floating rate of 182 basis points above the then three-month SOFR rate, reset quarterly, thereafter, callable in 2027 without penalty | Subordinated debt securities | Variable Rate Component One      
Debt Instrument [Line Items]      
Floating rate above three-month LIBOR rate   1.82% 1.82%