Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 136,505	$ 225,525	$ 203,009
Other comprehensive (loss) income:
Foreign currency translation (losses) gains	(5,844)	2,142	(1,832)
Unrealized (losses) gains on derivative instrument	(1,779)	(2,095)	3,999
Net unrealized (losses) gains on marketable securities, net of tax	(8,092)	(303)	1,333
Other comprehensive (loss) income	(15,715)	(256)	3,500
Comprehensive income	$ 120,790	$ 225,269	$ 206,509