Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (205,981)	$ (255,134)	$ (288,989)
Other comprehensive loss:
Foreign currency translation adjustment	0	(15,639)	(2,153)
Total other comprehensive loss	0	(15,639)	(2,153)
Comprehensive loss	$ (205,981)	$ (270,773)	$ (291,142)