XML 51 R38.htm IDEA: XBRL DOCUMENT v3.5.0.2
Employee Stock Plans - 1999 Stock Plan (Details) - shares
6 Months Ended
Jul. 03, 2016
Apr. 22, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock based award vesting period 4 years  
Stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Equity awards, term period 10 years  
1999 Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Equity awards, term period 10 years  
1999 Plan | Stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares reserved for issuance   0
1999 Plan | Initial vesting | Stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options vesting rate 25.00%  
Stock based award vesting period 1 year  
1999 Plan | Each month of service after vesting commencement date | Stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Periodic vesting percentage 2.08%