v3.26.1
Borrowings - Additional Information (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Short-term borrowings    
Short-term borrowings $ 179,321 $ 32,721
Net loans 4,150,616 4,027,889
FHLB Advances    
Short-term borrowings    
Short-term borrowings 2,400,000  
Maximum borrowing capacity 1,700,000  
Outstanding amount in borrowings 304,100  
Amount of credit facility used to issue standby letters of credit to collateralize public fund deposits 452,300  
Borrow in Custody Program    
Short-term borrowings    
Outstanding amount in borrowings 0 $ 0
Assets pledged as collateral | Borrow in Custody Program    
Short-term borrowings    
Net loans 719,000  
Borrow in Custody Program    
Short-term borrowings    
Amount of credit facility used to issue standby letters of credit to collateralize public fund deposits $ 506,400