Balance Sheet Components - Summary of Activity of Deferred Contract Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Capitalized Contract Cost [Abstract]
Beginning balance	$ 89,331	$ 50,245
Capitalization of contract acquisition costs	15,212	10,086
Amortization of deferred contract acquisition costs	(9,138)	(4,597)
Ending balance	95,405	55,734
Deferred contract acquisition costs, current	32,200	17,098
Deferred contract acquisition costs, non-current	63,205	38,636
Total deferred contract acquisition costs	$ 95,405	$ 55,734