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Derivatives (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Counterparty default losses on forward contracts $ 0 $ 0
Credit Derivatives [Line Items]    
Commitments
Collateral required to be posted under agreements 87,200 88,300
Variation Margin Adjustment 173,900 166,300
Interest rate futures    
Credit Derivatives [Line Items]    
Derivative, notional amount 187,000 150,000
Mortgage-Backed Security    
Credit Derivatives [Line Items]    
Derivative, notional amount 12,000 36,000
Interest rate swaps    
Credit Derivatives [Line Items]    
Derivative Asset, Notional Amount 4,300,000 4,700,000
Derivative Liability, Notional Amount 4,400,000 4,700,000
Commitments To Originate Loans Held For Sale    
Credit Derivatives [Line Items]    
Commitments 46,208 20,588
Interest rate forward sales commitments    
Credit Derivatives [Line Items]    
Commitments $ 76,535 $ 39,500