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Benefit Plans (Amortize pre-tax amount AOCI) (Details)
$ in Thousands
12 Months Ended
Mar. 31, 2023
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax $ 750
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax $ (5,602)