Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity and Share-Based Compensation - Narrative (Details)

v3.19.3
Stockholders' Equity and Share-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
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]        
Number of stock options granted (in shares)     3,910,000  
Number of options exercised (in shares)     100  
Number of stock options forfeited (in shares)     1,482,000  
Number of stock options expired (in shares)     1,163,000  
Number of share awards issued for payment of fees.     12  
Time Based RSU        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested (in shares)     726,000  
Performance based RSU        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested (in shares)     266,000  
Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested (in shares)     1,073,000  
Number of share awards released to two departing board member     81  
Shares withheld to satisfy employee tax obligations (in shares)     286,000  
Adjustment related employee tax obligations     $ 290  
Compensation expense $ 813 $ 580 1,992 $ 1,739
Unrecognized compensation expense $ 3,108   $ 3,108