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Employee Benefit Plans (Fair Value of Plan Assets) (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Fair value of plan assets, beginning of year $ 128,061 $ 98,010
Actual return on plan assets (2,156) 11,706
Employer contributions 10,877 8,064
Plan participant contributions 6,092 4,733
Benefits paid (3,904) (3,947)
Transfer of prior vested benefits 14,963 7,556
Administrative expenses paid (130) (130)
Currency exchange rate changes 2,315 2,069
Fair value of plan assets, end of year $ 156,118 $ 128,061