Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Current
Federal	$ 93,562	$ 47,087	$ 33,334
State	15,595	635	9,084
Foreign	17,953	14,068	15,269
Total	127,110	61,790	57,687
Deferred
Federal	(6,717)	4,626	6,612
State	(633)	(462)	2,236
Foreign	(821)	(1,230)	(1,909)
Total	(8,171)	2,934	6,939
Total	$ 118,939	$ 64,724	$ 64,626