v3.26.1
Loans and Allowance for Credit Losses on Loans - Pledged Loans (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Other residential | Federal Reserve Bank    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Collateral pledged $ 52.0 $ 97.2
Federal Home Loan Bank of San Francisco    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Collateral pledged $ 1,460.0 $ 1,396.0