Annual report pursuant to Section 13 and 15(d)

Common Stock and Stock-Based Incentive Compensation Plans (Details) (Weighted Average Valuation Assumptions for PRSUs)

v3.10.0.1
Common Stock and Stock-Based Incentive Compensation Plans (Details) (Weighted Average Valuation Assumptions for PRSUs) - $ / shares
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Sep. 24, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share price (USD per share)       $ 6.00
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected volatility   57.26% 62.33%  
Risk-free interest rate   1.68% 1.02%  
Expected dividend payments 0.00% 0.00% 0.00%  
Expected life   3 years 10 months 30 days 3 years 11 months 23 days  
Stock Options | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected volatility 51.51%      
Risk-free interest rate 2.20%      
Expected life 3 years 10 months 30 days      
Stock Options | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected volatility 60.46%      
Risk-free interest rate 2.83%      
Expected life 3 years 11 months 8 days      
Performance-based Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share price (USD per share)   $ 12.83 $ 5.14  
Expected volatility   64.39% 57.83%  
Risk-free interest rate   1.50% 0.88%  
Expected dividend payments 0.00% 0.00% 0.00%  
Expected life   3 years 3 years 26 days  
Performance-based Restricted Stock Units | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share price (USD per share) $ 12.02      
Expected volatility 63.77%      
Risk-free interest rate 2.06%      
Expected life 2 years 5 months 22 days      
Performance-based Restricted Stock Units | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share price (USD per share) $ 32.72      
Expected volatility 67.97%      
Risk-free interest rate 1.12%      
Expected life 3 years 1 day