XML 41 R50.htm IDEA: XBRL DOCUMENT v3.19.3
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ in Thousands, shares in Millions
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation $ 5,680 $ 2,708 $ 13,335 $ 9,908
Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares) 0.3      
Restricted Stock Units (RSUs) | Executives        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting rights, percentage of market condition benchmark 25.00%      
Award vesting rights, percentage of grants tested 33.33%      
Award vesting rights, percentage of market condition achieved 75.00%      
Stock-based compensation $ 900 $ 100 $ 2,900 $ 600
Maximum | Restricted Stock Units (RSUs) | Executives        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting rights, percentage 250.00%      
Minimum | Restricted Stock Units (RSUs) | Executives        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting rights, percentage 200.00%