Income Taxes - Activity of the Deferred Tax Asset Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	$ 137,766	$ 120,208
Valuation Allowance Recorded During the Period	284,496	20,274
Valuation Allowance Released During the Period	0	(2,716)
Ending Balance	$ 422,262	$ 137,766