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Stockholders' Equity - Assumption of PSU Granted (Details)
12 Months Ended
Dec. 28, 2019
$ / shares
Dec. 29, 2018
$ / shares
Dec. 30, 2017
$ / shares
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Volatility 70.00% 48.00% 47.00%
Risk-free interest rate 1.76% 1.90% 0.81%
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Volatility 72.00% 62.00% 51.00%
Risk-free interest rate 2.48% 2.31% 1.16%
Performance stock units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Index volatility   33.00%  
Estimated fair value (in dollar per share) $ 4.63 $ 9.79 $ 10.88
Performance stock units | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Index volatility 64.00%   33.00%
Volatility   58.00% 55.00%
Risk-free interest rate 2.17% 2.37% 1.41%
Correlation with index   0.04 0.10
Estimated fair value (in dollar per share) $ 2.08 $ 14.99 $ 15.23
Performance stock units | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Index volatility 68.00%   34.00%
Volatility   59.00% 56.00%
Risk-free interest rate 2.48% 2.40% 1.63%
Correlation with index   0.48 0.49
Estimated fair value (in dollar per share) $ 2.89 $ 19.46 $ 17.35