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Stock-Based Compensation - Additional Information (Detail)
shares in Thousands
3 Months Ended 6 Months Ended
Jul. 01, 2019
$ / shares
shares
Jul. 02, 2018
$ / shares
shares
Jul. 01, 2019
Time
$ / shares
shares
Jul. 02, 2018
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option granted | shares 0 20 0 20
Weighted average fair value of stock options granted | $ / shares   $ 8.92   $ 8.92
Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of times common stock released at end of the period exceeds the target number | Time     0  
Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of times common stock released at end of the period exceeds the target number | Time     2.4  
Performance-Based Restricted Stock Units (PRUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units granted | shares     293  
Weighted Average Grant-Date Fair Value Granted | $ / shares     $ 10.17 [1] $ 19.59 [2]
Risk-free interest rate     2.18% [1] 2.14% [2]
Expected volatility     38.00% [1] 40.00% [2]
Expected term in years     1 year 9 months 18 days [1] 1 year 6 months [2]
Performance-Based Restricted Stock Units (PRUs) | Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options vesting period (in years)     3 years  
Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units granted | shares 1,599 195 1,601 1,023
Weighted Average Grant-Date Fair Value Granted | $ / shares $ 10.04 $ 16.06 $ 10.04 $ 15.44
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-free interest rate   3.00%   3.00%
Expected volatility   43.00%   43.00%
Expected term in years   8 years 6 months   8 years 6 months
Dividend yield   0.00%   0.00%
[1] Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2017 and second year of the three-year performance period applicable to PRUs granted in 2018 and first year of the three-year performance period applicable to PRUs granted in 2019.
[2] Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2016, second year of the three-year performance period applicable to PRUs granted in 2017 and first year of the three-year performance period applicable to PRUs granted in 2018.