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Derivative Instruments and Hedging Activities (Schedule of Distribution of Customer Interest Rate Derivative) (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Derivative [Line Items]    
Derivative, Notional Amount $ 2,174,538 $ 1,984,608
Swap [Member]    
Derivative [Line Items]    
Derivative, Notional Amount 1,859,538 1,819,608
Written options [Member]    
Derivative [Line Items]    
Derivative, Notional Amount $ 315,000 $ 165,000