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Employee Benefit Plans (Amounts Recognized on Balance Sheet) (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]    
Current liabilities $ 2,738 $ 2,126
Non-current liabilities 71,549 60,778
Total liabilities $ 74,287 $ 62,904