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Stock-Based Compensation - Narrative (Detail) - USD ($)
3 Months Ended 6 Months Ended
Aug. 01, 2020
Aug. 03, 2019
Aug. 01, 2020
Aug. 03, 2019
Feb. 01, 2020
May 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award            
Stock-based compensation expense $ 6,900,000 $ 5,300,000 $ 12,689,000 $ 10,993,000    
Stock-based compensation cost capitalized     0 0    
Rollover units and profit interests 3,277,000   3,277,000   $ 3,064,000  
Selling, general and administrative expenses 195,851,000 190,977,000 $ 360,052,000 355,158,000    
Design Investors WW Acquisition Company, LLC | Profit interests            
Share Based Compensation Arrangement By Share Based Payment Award            
Profit interest expected life     5 years      
Selling, general and administrative expenses 100,000 $ 100,000 $ 200,000 $ 200,000    
Design Investors WW Acquisition Company, LLC | Profit interests | Other non-current obligations            
Share Based Compensation Arrangement By Share Based Payment Award            
Liability associated with the profit interests 1,800,000   1,800,000   1,600,000  
Appreciation rights | Design Investors WW Acquisition Company, LLC            
Share Based Compensation Arrangement By Share Based Payment Award            
Rollover units and profit interests $ 1,500,000   $ 1,500,000   $ 1,500,000 $ 1,500,000
2012 Stock Incentive Plan and 2012 Stock Option Plan | Stock Options            
Share Based Compensation Arrangement By Share Based Payment Award            
Outstanding shares 7,697,037   7,697,037      
Options outstanding, weighted-average exercise price per share $ 69.34   $ 69.34      
Numbers of options vested     5,954,467      
Vested weighted-average exercise price per share     $ 53.83      
Aggregate intrinsic value of options outstanding $ 1,678,600,000   $ 1,678,600,000      
Aggregate intrinsic value of options vested or expected to vest 1,596,400,000   1,596,400,000      
Aggregate intrinsic value of options exercisable 1,391,000,000.0   $ 1,391,000,000.0      
Weighted-average remaining contractual life of options exercisable     3 years 10 months 24 days      
Unrecognized compensation expense related to unvested options $ 75,900,000   $ 75,900,000      
Unrecognized compensation expense with weighted-average period     4 years 9 months 14 days      
2012 Stock Incentive Plan and 2012 Stock Option Plan | Restricted stock and restricted stock unit            
Share Based Compensation Arrangement By Share Based Payment Award            
Unrecognized compensation expense with weighted-average period     1 year 2 months 8 days      
Outstanding shares 100,010   100,010      
Restricted stock awards outstanding with weighted-average grant date fair value per share $ 46.63   $ 46.63      
Vested restricted stock unit 86,650   100,575      
Weighted-average fair value per share of awards granted $ 49.67   $ 52.29      
Unrecognized compensation expense related to unvested options $ 3,600,000   $ 3,600,000