v3.20.1
Common Stock and Share-Based Compensation - Narrative (Detail) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 10, 2019
Aug. 03, 2019
Feb. 01, 2020
Feb. 01, 2020
Feb. 02, 2019
Feb. 03, 2018
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
Common Stock, Voting Rights       one vote per share    
Stock Repurchase Program, Authorized Amount     $ 300.0 $ 300.0    
Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit       $ 38.52    
Options Outstanding, Weighted-Average Remaining Life (Years)       2 years 6 months 18 days    
Payments of Dividends       $ (40.5) $ (157.4) $ (155.2)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value           0.1
Treasury Stock Acquired, Average Cost Per Share       $ 5.19    
Stock Repurchase Program, Remaining Authorized Repurchase Amount     101.3 $ 101.3    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value     0.0 0.0    
Share-based Payment Arrangement, Expense, Tax Benefit       (1.2) (4.1) $ (4.2)
TenderOfferShareAmount 12,000,000.0          
Stock Repurchased and Retired During Period, Value   $ 62.9 $ 135.8 $ 198.7    
Stock Repurchased and Retired During Period, Shares   12,000,000.0 26,100,000 38,100,000    
Share-based Payment Arrangement, Option [Member]            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
Share-based Payment Arrangement, Expense       $ 0.0 $ (0.1)  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 0.0 $ 0.0    
Restricted Stock            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period       2,398,748 969,043 596,412
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period       479,405    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value       $ 8.05 $ 15.67 $ 24.94
Share-based Payment Arrangement, Expense       $ (8.9) $ (10.7) $ (25.5)
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 11.2 $ 11.2    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition       2 years    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value       $ 4.6 $ 16.2 $ 12.5
Performance Shares [Member]            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period       1,199,042 257,667 287,670
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period       0    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value       $ 7.95 $ 15.80 $ 25.28
Two Thousand Nineteen Sock Incentive Plan [Member]            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant     6,500,000 6,500,000    
Two Thousand Eleven Stock Incentive Plan [Member] | Restricted Stock            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         3 years  
Class A Common Stock            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
Common Stock, Dividends, Per Share, Cash Paid       $ 0.38 $ 1.52 $ 1.52
TenderOfferPriceOfferAccepted [Member]            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
ModifiedDutchAuctionTenderOfferPricePerShare $ 5.20          
TenderOfferPriceOfferMaximum [Member]            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
ModifiedDutchAuctionTenderOfferPricePerShare 6.00          
TenderOfferPriceOfferMinimum [Member]            
Compensation Related Costs Share Based Payments Disclosure [Line Items]            
ModifiedDutchAuctionTenderOfferPricePerShare $ 5.20