Convertible Preferred Stock and Stockholders' Equity (Deficit) - Summary of Changes In Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ (803,704)	$ (799,511)	$ (297,943)
Other comprehensive income (loss), net of tax	23,420	(18,747)	5,174
Ending Balance	1,921,917	(803,704)	(799,511)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(12,521)	6,226	1,052
Other comprehensive income (loss), net of tax	23,420	(18,747)	5,174
Ending Balance	10,899	(12,521)	6,226
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(12,504)	6,226
Other comprehensive income (loss), net of tax	23,738	(18,730)
Ending Balance	11,234	(12,504)	6,226
Unrealized Gain (Loss) on Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(17)	0
Other comprehensive income (loss), net of tax	(318)	(17)
Ending Balance	$ (335)	$ (17)	$ 0