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Deferred Revenue and Commissions - Remaining Performance Obligation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Nov. 01, 2020
Oct. 31, 2019
Nov. 01, 2020
Oct. 31, 2019
Revenue from Contract with Customer [Abstract]        
Deferred revenue recognized $ 121,900 $ 101,400 $ 285,000 $ 213,200
Contracted but not recognized revenue $ 1,010,400   $ 1,010,400  
Contracted but not recognized revenue expected to be recognized in the next 12 months (percent) 43.00%   43.00%