Deferred Revenue and Commissions - Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Nov. 01, 2020	Oct. 31, 2021	Nov. 01, 2020
Contract Liability
Additions	$ 49,822	$ 36,234	$ 121,802	$ 96,530
Recognition of deferred revenue	(37,467)	(28,832)	(101,406)	(83,645)
Product Revenue and Support Subscription Revenue
Contract Liability
Beginning balance	909,814	724,751	843,697	697,288
Additions	208,542	180,285	611,006	467,454
Recognition of deferred revenue	(168,606)	(142,272)	(504,953)	(401,978)
Ending balance	$ 949,750	$ 762,764	$ 949,750	$ 762,764