v3.26.1
Derivative Financial Instruments - Additional information (Details) - USD ($)
 3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Derivative [Line Items]    
Maximum length of time hedged in cash flow hedge 1 year 6 months  
Credit exposure to settled variation margin in excess of customer related interest rate swap $ 100,000 $ 200,000
Notional Amount 1,637,500,000 1,937,500,000
Derivative asset 51,036,000 55,048,000
Derivative liability 72,251,000 74,719,000
Loan Origination Commitments    
Derivative [Line Items]    
Notional Amount 32,600,000 37,800,000
Derivative asset 800,000 500,000
Derivative liability 100,000 100,000
Forward Contracts    
Derivative [Line Items]    
Notional Amount 29,900,000 35,900,000
Interest Rate Futures    
Derivative [Line Items]    
Notional Amount 42,700,000 45,200,000
Non Cleared Derivative Transactions | Customer Related Interest Rate Swap Derivatives    
Derivative [Line Items]    
Additional collateral posted 0 0
Fair value of interest rate swap liabilities that are net in a net liability position 0 0
Restricted Assets | Cleared Derivative Transaction    
Derivative [Line Items]    
Additional collateral posted 40,100,000 $ 40,300,000
Active Cash Flow Hedges    
Derivative [Line Items]    
Interest rate swap cash flow hedges amount expected to reclassified from other comprehensive income to income statement in the next twelve months $ 6,100,000