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Share-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 9 Months Ended
Sep. 28, 2016
Jun. 29, 2016
Sep. 30, 2015
Sep. 28, 2016
Sep. 30, 2015
Total share-based compensation [Abstract]          
Total share-based compensation $ 1,775   $ 1,941 $ 5,625 $ 5,505
Restricted Stock Units [Abstract]          
Cash award, amount (in dollars) $ 500     500  
Performance period, cash award 1 year        
Performance shares [Member]          
Total share-based compensation [Abstract]          
Total share-based compensation $ 1,862   1,727 $ 5,284 4,905
Restricted Stock Units [Abstract]          
Performance period, equity award       3 years  
Cash payments       $ 2,500  
Maximum common stock shares issued (in shares)       0.4  
Unrecognized compensation cost [Abstract]          
Unrecognized compensation cost related to unvested share awards outstanding 8,600     $ 8,600  
Unrecognized compensation cost, expected weighted average period       1 year 9 months 22 days  
Performance shares [Member] | Minimum [Member]          
Restricted Stock Units [Abstract]          
Percentage of target awards to be earned (in hundredths)       0.00%  
Performance shares [Member] | Maximum [Member]          
Restricted Stock Units [Abstract]          
Percentage of target awards to be earned (in hundredths)       150.00%  
Performance shares [Member] | Performance shares that vest based on TSR [Member]          
Restricted Stock Units [Abstract]          
Equity awards granted (in shares)       0.3  
Equity awards, grant date fair value (in dollars per share)       $ 9.43  
Performance shares [Member] | Performance shares that vest based on EBITDA growth [Member]          
Restricted Stock Units [Abstract]          
Equity awards granted (in shares)       0.3  
Equity awards, grant date fair value (in dollars per share)       $ 9.52  
Restricted stock units for board members [Member]          
Total share-based compensation [Abstract]          
Total share-based compensation $ (87)   $ 214 $ 341 $ 600
Restricted Stock Units [Abstract]          
Equity awards granted (in shares) 0.1 0.1      
Equity awards, grant date fair value (in dollars per share) $ 10.77 $ 10.77      
Performance period, equity award 3 years        
Maximum common stock shares issued (in shares)       0.1  
Unrecognized compensation cost [Abstract]          
Unrecognized compensation cost related to unvested share awards outstanding $ 300     $ 300  
Unrecognized compensation cost, expected weighted average period       2 years 7 months