Acquisitions, Intangible Assets and Goodwill - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Jan. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Total finite-lived intangible assets	$ 19,327	$ 5,729
Less: accumulated amortization	(3,662)	(934)
Total finite-lived intangible assets, net	15,665	4,795
Infinite-lived intangible assets - trademarks	426	0
Intangible assets, net	16,091	4,795
Developed technology
Finite-Lived Intangible Assets [Line Items]
Total finite-lived intangible assets	11,332	5,632
Patents
Finite-Lived Intangible Assets [Line Items]
Total finite-lived intangible assets	7,948	0
Other
Finite-Lived Intangible Assets [Line Items]
Total finite-lived intangible assets	$ 47	$ 97