XML 77 R65.htm IDEA: XBRL DOCUMENT v3.19.1
Stockholders' Equity and Stock-Based Compensation - Textual (Details) - $ / shares
3 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Mar. 29, 2019
Dec. 28, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of options granted 0 0    
Closing stock price     $ 30.88 $ 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