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Derivative Instruments and Hedging Activities - Balance sheet related to cumulative basis adjustments for fair value hedges (Details) - Designated as Hedging Instrument - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Derivative Instruments and Hedging Activities    
Notional Amount $ 320,500 $ 456,350
Fair Value Hedging    
Derivative Instruments and Hedging Activities    
Notional Amount 45,144 242,314
Carrying Amount of Hedged Assets/ Liabilities 45,007 252,863
Cumulative Fair Value Hedging Adjustment in the Carrying Amount of Hedged Assets/ Liabilities $ (137) $ 10,549