Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (68,595)	$ (30,156)	$ (199,392)	$ (79,732)
Other comprehensive income (loss):
Foreign currency translation adjustments	0	(15)	290	289
Total comprehensive loss	$ (68,595)	$ (30,171)	$ (199,102)	$ (79,443)