Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Finite Lived Intangible Assets [Line Items]
Amortization of other intangibles	$ 21,109	$ 22,536	$ 21,496
Customer Relationships and Trade Names | Operating Expense
Finite Lived Intangible Assets [Line Items]
Amortization of other intangibles	4,449	4,143	4,344
Computer Software, Intangible Asset | Cost of Revenue
Finite Lived Intangible Assets [Line Items]
Amortization of other intangibles	$ 16,660	$ 18,393	$ 17,152