Revenue Recognition - Summary Disaggregation of Revenue by Region (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 956,237	$ 328,167
Percentage of revenue	100.00%	100.00%
Americas
Disaggregation of Revenue [Line Items]
Revenue	$ 635,784	$ 245,633
Percentage of revenue	66.00%	75.00%
Asia Pacific (“APAC”)
Disaggregation of Revenue [Line Items]
Revenue	$ 123,763	$ 31,278
Percentage of revenue	13.00%	9.00%
Europe, Middle East, and Africa (“EMEA”)
Disaggregation of Revenue [Line Items]
Revenue	$ 196,690	$ 51,256
Percentage of revenue	21.00%	16.00%