Property and Equipment, Net - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Property, Plant and Equipment [Line Items]
Capitalized internal-use software costs	$ 10,600	$ 2,800	$ 1,700
Depreciation and amortization	7,909	2,837	1,855
Capitalized computer software, amortization	2,100	1,300	700
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 4,600	$ 2,800	$ 1,900