v3.26.1
Borrowed Funds - Additional Information (Details) - USD ($)
$ in Millions
6 Months Ended
May 14, 2026
Jun. 30, 2026
Dec. 31, 2025
Federal Home Loan Bank Advances      
Debt Instrument [Line Items]      
Federal home loan bank, advances, weighted average interest rate   3.94%  
Federal Home Loan Bank Advances      
Debt Instrument [Line Items]      
Weighted average interest rate for long-term borrowings   4.31% 4.42%
Subordinated Notes Due June 1, 2036      
Debt Instrument [Line Items]      
Subordinated debt, net $ 500.0    
Subordinated borrowing interest rate 6.219%    
Subordinated debt basis points 2.43%    
Subordinated debt carrying value   $ 494.2  
Debt issuance costs, gross   5.8  
Subordinated Notes Due June 2031      
Debt Instrument [Line Items]      
Subordinated borrowing interest rate 3.00%    
Repayments of subordinated debt $ 300.0    
USAmeriBancorp, Inc.      
Debt Instrument [Line Items]      
Subordinated debt, net   $ 150.0  
Subordinated borrowing interest rate   6.25%