Equity Incentive Plans - Summary of Stock-Based Compensation Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 02, 2020	Jan. 31, 2019	Jan. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 226,705	$ 210,645	$ 150,673
Cost of revenue—product
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	3,732	2,951	1,630
Cost of revenue—subscription services
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	14,403	12,378	9,050
Research and development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	107,658	92,484	71,229
Sales and marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	67,560	66,350	47,687
General and administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 33,352	$ 36,482	$ 21,077