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Derivatives (Equity Market Contracts Designated As Hedging Instruments) (Details) - Equity Swap [Member] - USD ($)
$ in Thousands
Mar. 31, 2024
Mar. 31, 2023
Notional Amount Of Derivatives [Abstract]    
Derivative Asset Notional Amount $ 10,538 $ 4,295
Derivative Notional Amount $ 526,449 $ 465,701