Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (73,849)	$ (85,604)	$ (173,771)	$ (224,076)
Other comprehensive loss:
Foreign currency translation adjustment	(5,745)	(792)	(15,639)	(1,330)
Total other comprehensive loss	(5,745)	(792)	(15,639)	(1,330)
Comprehensive loss	$ (79,594)	$ (86,396)	$ (189,410)	$ (225,406)