CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (42,324)	$ (38,413)	$ (86,230)	$ (80,326)
Other comprehensive loss, net of tax
Unrealized (loss) gain on investments in securities	(15)	(43)	(48)	379
Foreign currency translation adjustment	(2,149)	2,945	(1,866)	3,830
Comprehensive loss	$ (44,488)	$ (35,511)	$ (88,144)	$ (76,117)