XML 109 R94.htm IDEA: XBRL DOCUMENT v3.25.4
Borrowings - The Federal Reserve Bank (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Line of credit | Federal Reserve Bank of Boston    
Borrowings    
Borrowings outstanding $ 0 $ 0
FRB Advances    
Borrowings    
Amount of assets pledged 1,530,000  
Amount of additional borrowing capacity $ 939,500