XML 54 R42.htm IDEA: XBRL DOCUMENT v3.6.0.2
Employee Stock and Benefit Plans (Plan Information) (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 26, 2012
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Contributions by the Company to the 401(k) plan   $ 0.6 $ 0.0
2012 Equity Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized (in shares)   8,069,184  
Number of shares available for grant (in shares)   1,425,230  
2012 Equity Incentive Plan | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period 10 years    
2012 Equity Incentive Plan | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 4 years    
Term of award 10 years    
2000 Equity Incentive Plan | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period   4 years  
Term of award   10 years  
Number of shares available for issuance (in shares)   0  
2000 Equity Incentive Plan | Stock Options | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award strike price as a percentage of market value   85.00%  
Increase of Number of Shares Option | 2012 Equity Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Equity incentive plan annual increase (in shares) 3,050,000    
Increase of Percentage of Shares Outstanding Option | 2012 Equity Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Equity incentive plan, annual increase, percent of shares outstanding 5.00%