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Derivatives (Interest rate contracts designated as hedging instruments) (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Mar. 31, 2025
Notional Amount Of Derivatives [Abstract]    
Derivative Liability, Notional Amount $ 436  
Interest Rate Swap [Member]    
Notional Amount Of Derivatives [Abstract]    
Derivative Asset Notional Amount 2,647 $ 4,381
Derivative Notional Amount $ 272,647 $ 376,887