v3.25.3
Short-Term Borrowings and Long-Term Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
May 06, 2021
Jan. 31, 2014
Short-Term Debt [Line Items]        
Total short-term borrowings $ 275,000 $ 885,000    
Debt Instrument [Line Items]        
Long-term debt 620,416 660,346    
FHLB Borrowings        
Short-Term Debt [Line Items]        
Total short-term borrowings 0 885,000    
Federal Funds Purchased        
Short-Term Debt [Line Items]        
Total short-term borrowings 275,000 0    
5.75% Subordinated Notes, Due 2026        
Debt Instrument [Line Items]        
Interest rate       5.25%
Trust preferred securities issued 134,459 174,717    
4.00% Subordinated Notes, Due 2031        
Debt Instrument [Line Items]        
Interest rate     4.00%  
Trust preferred securities issued 372,551 372,223    
Floating Rate Subordinated Debentures, Due 2032 to 2036        
Debt Instrument [Line Items]        
Trust preferred securities issued $ 113,406 $ 113,406