Income Taxes - Components of the Provision (Benefit) from Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Current expense
Federal	$ 0	$ 0	$ 0
State	80	47	0
Foreign	20,455	5,275	4,118
Total current expense	20,535	5,322	4,118
Deferred expense (benefit)
Federal	0	0	0
State	0	0	0
Foreign	(5,832)	(7,587)	(1,324)
Total deferred benefit	(5,832)	(7,587)	(1,324)
Provision for (benefit from) income taxes	$ 14,703	$ (2,265)	$ 2,794