Revenue and Contract Balances - Disaggregation of Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 115,323	$ 56,018	$ 296,083	$ 139,163
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of Revenue	100.00%	100.00%	100.00%	100.00%
United States
Disaggregation of Revenue [Line Items]
Revenue	$ 73,657	$ 37,423	$ 194,606	$ 94,806
United States | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of Revenue	64.00%	67.00%	66.00%	68.00%
International
Disaggregation of Revenue [Line Items]
Revenue	$ 41,666	$ 18,595	$ 101,477	$ 44,357
International | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of Revenue	36.00%	33.00%	34.00%	32.00%