Revenue Recognition - Summary Disaggregation of Revenue by Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 1,050,756	$ 777,196	$ 3,028,488	$ 1,768,883
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue				$ 1,768,883
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
Americas
Disaggregation of Revenue [Line Items]
Revenue	$ 699,944	$ 538,504	$ 2,017,143
Americas | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue				$ 1,238,298
Percentage of revenue	67.00%	69.00%	67.00%	70.00%
Asia Pacific (“APAC”)
Disaggregation of Revenue [Line Items]
Revenue	$ 150,473	$ 103,458	$ 409,557
Asia Pacific (“APAC”) | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue				$ 215,099
Percentage of revenue	14.00%	13.00%	13.00%	12.00%
Europe, Middle East, and Africa (“EMEA”)
Disaggregation of Revenue [Line Items]
Revenue	$ 200,339	$ 135,234	$ 601,788
Europe, Middle East, and Africa (“EMEA”) | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue				$ 315,486
Percentage of revenue	19.00%	18.00%	20.00%	18.00%