v3.25.2
Borrowings - Additional Information (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Jun. 30, 2024
Federal Reserve Bank Term Funding Program ("BTFP")    
Debt Instrument [Line Items]    
Federal reserve bank advances agency mortgage-backed securities $ 113.5  
Investment in Federal Home Loan Bank Stock    
Debt Instrument [Line Items]    
Federal Home Loan Bank, advances, general debt obligations, disclosures, collateral pledged 3,240.0 $ 4,380.0
Federal Home Loan Bank, advances, general debt obligations, amount of available, unused funds $ 2,220.0