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Share-Based Compensation (Details)
$ in Thousands
12 Months Ended
Jul. 07, 2015
shares
Feb. 03, 2018
USD ($)
plan
shares
Jan. 28, 2017
USD ($)
shares
Jan. 30, 2016
USD ($)
May 19, 2017
shares
May 18, 2017
shares
May 01, 2017
shares
May 20, 2016
shares
May 19, 2016
shares
Disclosure of share-based compensation information under stock plans                  
Number of share-based compensation plans | plan   4              
Share-based compensation expense | $   $ 18,852 $ 16,908 $ 18,880          
Stock option                  
Disclosure of share-based compensation information under stock plans                  
Share-based compensation expense | $   2,345 2,219 2,113          
Stock option | Selling, general and administrative expenses                  
Disclosure of share-based compensation information under stock plans                  
Share-based compensation expense | $   $ 2,345              
Stock awards or units                  
Disclosure of share-based compensation information under stock plans                  
Stock awards or units granted (in shares)   1,969,619              
Share-based compensation expense | $   $ 16,347 $ 14,544 $ 16,604          
Stock awards or units | Selling, general and administrative expenses                  
Disclosure of share-based compensation information under stock plans                  
Share-based compensation expense | $   $ 16,347              
Performance-based awards/units                  
Disclosure of share-based compensation information under stock plans                  
Stock awards or units granted (in shares)   818,416              
Performance units | Vesting, Tranche one                  
Disclosure of share-based compensation information under stock plans                  
Vesting period   1 year              
Performance units | Minimum | Vesting, annual vesting periods after initial vesting period                  
Disclosure of share-based compensation information under stock plans                  
Vesting period   2 years              
Performance units | Maximum | Vesting, annual vesting periods after initial vesting period                  
Disclosure of share-based compensation information under stock plans                  
Vesting period   3 years              
Target performance units                  
Disclosure of share-based compensation information under stock plans                  
Vesting period   3 years              
Target performance units | Minimum                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights based on the satisfaction of certain performance or market-based criteria (as a percentage)   0.00%              
Target performance units | Maximum                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights based on the satisfaction of certain performance or market-based criteria (as a percentage)   200.00%              
Market-based awards/units                  
Disclosure of share-based compensation information under stock plans                  
Vesting period   3 years              
Stock awards or units granted (in shares)   309,118              
Period which award is subject to a market condition (in years)   3 years              
Market-based awards/units | Minimum                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights based on the satisfaction of certain performance or market-based criteria (as a percentage)   0.00%              
Market-based awards/units | Maximum                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights based on the satisfaction of certain performance or market-based criteria (as a percentage)   150.00%              
Contingently returnable restricted stock units | CEO                  
Disclosure of share-based compensation information under stock plans                  
Stock awards or units granted (in shares) 150,000                
Implied service period 1 year                
2004 Equity Incentive Plan                  
Disclosure of share-based compensation information under stock plans                  
Authorized number of shares (in shares)   29,100,000     29,100,000 15,000,000      
Shares available for grant under the plan (in shares)   15,350,428 4,092,241            
2004 Equity Incentive Plan | Stock option                  
Disclosure of share-based compensation information under stock plans                  
Term of award   10 years              
2004 Equity Incentive Plan | Stock option | Vesting, Tranche one                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights (as a percentage)   25.00%              
Vesting period   9 months 9 months 9 months          
2004 Equity Incentive Plan | Stock option | Vesting, Tranche two                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights (as a percentage)   25.00%              
Vesting period   1 year 1 year 1 year          
2004 Equity Incentive Plan | Stock option | Vesting, Tranche three                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights (as a percentage)   25.00%              
Vesting period   1 year 1 year 1 year          
2004 Equity Incentive Plan | Stock option | Vesting, Tranche four                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights (as a percentage)   25.00%              
Vesting period   1 year 1 year 1 year          
2004 Equity Incentive Plan | Stock awards or units                  
Disclosure of share-based compensation information under stock plans                  
Number that new grants on or after May 1, 2017 are counted against shares authorized (excluding stock options or stock appreciation rights) (in shares)   3.54         3.54    
2004 Equity Incentive Plan | Stock awards or units | Vesting, Tranche one                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights (as a percentage)   25.00%              
Vesting period   9 months 9 months 9 months          
2004 Equity Incentive Plan | Stock awards or units | Vesting, Tranche two                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights (as a percentage)   25.00%              
Vesting period   1 year 1 year 1 year          
2004 Equity Incentive Plan | Stock awards or units | Vesting, Tranche three                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights (as a percentage)   25.00%              
Vesting period   1 year 1 year 1 year          
2004 Equity Incentive Plan | Stock awards or units | Vesting, Tranche four                  
Disclosure of share-based compensation information under stock plans                  
Vesting rights (as a percentage)   25.00%              
Vesting period   1 year 1 year 1 year          
Employee Stock Purchase Plan                  
Disclosure of share-based compensation information under stock plans                  
Authorized number of shares (in shares)   4,000,000              
Purchase price of the Company's common stock determined as the lower of the closing price at the beginning or end of the quarterly stock purchase period (expressed as a percentage)   85.00%              
Share-based compensation expense | $   $ 160 $ 145 $ 163          
Minimum holding period for shares purchased under the ESPP (in months)   6 months              
Period before the end of each fiscal quarter prohibited for trading, as per Company's securities trading policy (in days)   14 days              
Period after public announcement of earnings prohibited for trading, as per Company's securities trading policy (in days)   2 days              
2006 Non-Employee Directors Stock Grant and Stock Option Plan                  
Disclosure of share-based compensation information under stock plans                  
Authorized number of shares (in shares)   1,850,000           1,850,000 2,000,000
Shares available for grant under the plan (in shares)   495,489 582,639            
Retained Earnings | Accounting Standards Update 2016-09                  
Disclosure of share-based compensation information under stock plans                  
Cumulative adjustment reclassified to retained earnings from adoption of new accounting guidance | $   $ (268)