XML 76 R64.htm IDEA: XBRL DOCUMENT v3.19.2
Stockholders' Equity and Stock-Based Compensation - Textual (Details) - $ / shares
6 Months Ended
Jun. 29, 2019
Jun. 30, 2018
Dec. 28, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of options granted 0 0  
Closing stock price $ 34.71   $ 27.65
Performance-Based Restricted Stock Units (PSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percent of granted shares that will vest if target stock price performance is achieved 66.70%    
Maximum percent of granted shares that will vest if maximum stock price performance is achieved 100.00%    
Performance-Based Restricted Stock Units (PSUs) [Member] | Tranche One [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period of vesting 1 year    
Performance-Based Restricted Stock Units (PSUs) [Member] | Tranche Two [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period of vesting 2 years    
Performance-Based Restricted Stock Units (PSUs) [Member] | Tranche Three [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period of vesting 3 years