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Long-term Debt and Borrowings - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 15 Months Ended
Jun. 30, 2022
Mar. 31, 2026
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]        
Subordinated debt, net of issuance cost   $ 54,729 $ 54,729 $ 54,675
Advances from FHLB average balance   1,908    
Decrease in average balance of FHLB advances     (178,750)  
Short-term FHLB advances   0 0 0
Long-term Federal Home Loan Bank advances   0 0 3,024
Additional FHLB advances   $ 1,260,533 $ 1,260,533 $ 1,256,621
Subordinated Debt        
Debt Instrument [Line Items]        
Debt issuance as a percentage of aggregate principal (percent) 100.00%      
5.75% Fixed-to-Floating Rate Subordinated Notes | Subordinated Debt        
Debt Instrument [Line Items]        
Aggregate principal amount $ 55,000      
Fixed-to-floating rate (percent) 5.75%      
Debt instrument basis points 2.82%      
Subordinated debt amortization period (in years)   5 years