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Share-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 30, 2018
Apr. 28, 2017
Mar. 29, 2017
May 05, 2018
Apr. 29, 2017
Disclosure of share-based compensation information under stock plans          
Share-based compensation expense       $ 3,958 $ 3,963
Share-Based Compensation, Additional Disclosures          
Unrecognized compensation cost related to nonvested stock options       $ 5,300  
Weighted average fair values of stock options granted during the period (in dollars per share)       $ 5.89 $ 1.57
Granted (in shares) 431,371   1,283,175    
Employee Stock Purchase Plan          
Disclosure of share-based compensation information under stock plans          
Share-based compensation expense       $ 93 $ 36
Stock options          
Disclosure of share-based compensation information under stock plans          
Share-based compensation expense       $ 695 609
Share-Based Compensation, Additional Disclosures          
Weighted average period for recognition of unrecognized compensation cost (in years/months/days)       1 year 7 months 17 days  
Stock awards or units          
Disclosure of share-based compensation information under stock plans          
Share-based compensation expense       $ 3,170 $ 3,318
Share-Based Compensation, Additional Disclosures          
Unrecognized compensation cost related to nonvested stock awards/units       $ 34,800  
Weighted average period for recognition of unrecognized compensation cost (in years/months/days)       1 year 7 months 17 days  
Number of Units          
Granted (in shares) 490,528   707,675    
Performance-based or market-based units          
Number of Units          
Granted (in shares)   1,056,042      
Performance-based units          
Number of Units          
Nonvested at the beginning of the period (in shares)       1,300,921  
Granted (in shares)       0  
Vested (in shares)       (79,125)  
Forfeited (in shares)       (27,441)  
Nonvested at the end of the period (in shares)       1,194,355  
Weighted Average Grant Date Fair Value          
Nonvested at the beginning of the period (in dollars per share)       $ 14.01  
Granted (in dollars per share)       0.00  
Vested (in dollars per share)       11.16  
Forfeited (in dollars per share)       11.16  
Nonvested at the end of the period (in dollars per share)       $ 14.27  
Performance units | Vesting, Tranche One          
Share-Based Compensation, Additional Disclosures          
Vesting period (in years)       1 year  
Performance units | Vesting, annual vesting periods after initial vesting period | Minimum          
Share-Based Compensation, Additional Disclosures          
Vesting period (in years)       2 years  
Performance units | Vesting, annual vesting periods after initial vesting period | Maximum          
Share-Based Compensation, Additional Disclosures          
Vesting period (in years)       3 years  
Target performance units          
Share-Based Compensation, Additional Disclosures          
Vesting period (in years)       3 years  
Target performance units | Minimum          
Share-Based Compensation, Additional Disclosures          
Vesting rights based on the satisfaction of certain performance or market-based criteria (as a percentage)       0.00%  
Target performance units | Maximum          
Share-Based Compensation, Additional Disclosures          
Vesting rights based on the satisfaction of certain performance or market-based criteria (as a percentage)       200.00%  
Market-based units          
Share-Based Compensation, Additional Disclosures          
Vesting period (in years)       3 years  
Period which award is subject to a market condition (in years)       3 years  
Number of Units          
Nonvested at the beginning of the period (in shares)       388,477  
Granted (in shares)       0  
Vested (in shares)       0  
Forfeited (in shares)       0  
Nonvested at the end of the period (in shares)       388,477  
Weighted Average Grant Date Fair Value          
Nonvested at the beginning of the period (in dollars per share)       $ 12.28  
Granted (in dollars per share)       0.00  
Vested (in dollars per share)       0.00  
Forfeited (in dollars per share)       0.00  
Nonvested at the end of the period (in dollars per share)       $ 12.28  
Market-based units | Minimum          
Share-Based Compensation, Additional Disclosures          
Vesting rights based on the satisfaction of certain performance or market-based criteria (as a percentage)       0.00%  
Market-based units | Maximum          
Share-Based Compensation, Additional Disclosures          
Vesting rights based on the satisfaction of certain performance or market-based criteria (as a percentage)       150.00%