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Share-Based Compensation - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 05, 2019
$ / shares
shares
Apr. 27, 2018
shares
Oct. 05, 2016
shares
Apr. 28, 2019
USD ($)
$ / shares
shares
Apr. 29, 2018
USD ($)
employee
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Maximum number of shares subject to purchase under warrants | shares     1,086,957    
Warrants vested (in shares) | shares   586,956      
Warrant vesting costs | $       $ 21.5  
Warrant vesting costs due to acceleration | $       $ 15.9  
Number of securities called by warrants (in shares) | shares       869,565  
Number of shares affected (in shares) | shares         159,000
Number of employees affected | employee         8
Additional compensation cost | $         $ 2.8
Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Equity awards granted | shares       106,000  
Description of award vesting rights       one-third of the awards vesting each performance period  
Performance Period One | Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period       1 year  
Grant date fair value per unit       $ 55.82  
Performance Period Two | Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period       2 years  
Grant date fair value per unit       $ 59.36  
Performance Period Three | Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period       3 years  
Grant date fair value per unit       $ 61.45  
CEO | Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Equity awards granted | shares       160,000  
CEO | Market Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Equity awards granted | shares 320,000        
Vesting percentage, prorated 70.00%        
CEO | Performance Period One | Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period       1 year  
Grant date fair value per unit       $ 55.82  
CEO | Performance Period One | Market Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percent       25.00%  
Grant date fair value per unit $ 44.32        
CEO | Performance Period Two | Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period       2 years  
Grant date fair value per unit       $ 59.36  
CEO | Performance Period Two | Market Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percent       25.00%  
Grant date fair value per unit $ 33.19        
CEO | Performance Period Three | Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period       3 years  
Grant date fair value per unit       $ 61.45  
CEO | Performance Period Three | Market Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percent       25.00%  
CEO | Performance Period Four | Market Performance-based RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period       4 years  
Grant date fair value per unit       $ 62.98  
CEO | Performance Period Four | Market Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percent       25.00%  
CEO | Share Price Equals To Or Exceeds $71.00 | Market Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percent 30.00%        
CEO | Share Price Over $95.00 | Market Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percent 70.00%        
CEO | Share Price Between $71.00 and $95.00 | Market Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percent 30.00%