XML 22 R50.htm IDEA: XBRL DOCUMENT v2.4.0.6
Employee Stock Plans (Details)
1 Months Ended 9 Months Ended 12 Months Ended
Apr. 28, 2011
Sep. 30, 2012
Dec. 30, 2012
Jan. 01, 2012
1999 Stock Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity award, up to term     10 years  
1999 Stock Plan [Member] | Stock Options [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares available for grant     0  
1999 Stock Plan [Member] | Initial Vesting [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity award vesting period     1 year  
Percent of options vested     25.00%  
1999 Stock Plan [Member] | Periodic Vesting [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity award vesting period     1 month  
Percent of options vested     2.08%  
2009 Stock Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity award, up to term     10 years  
Shares available for grant     2,920,000 2,969,000
Additional shares reserved for issuance 1,500,000      
Shares reserved for issuance     7,000,000  
Forfeited or repurchased available for reissuance   7,500,000.0    
2009 Stock Plan [Member] | Initial Vesting [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity award vesting period     1 year  
Percent of options vested     25.00%  
2009 Stock Plan [Member] | Periodic Vesting [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity award vesting period     1 month  
Percent of options vested     2.08%  
Employee Stock Purchase Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares reserved for issuance     2,300,000  
Maximum percent of employees total compensation allowed for purchase of shares     20.00%  
Maximum number of shares per employee per period     20,000  
Purchase price of shares as a percentage of fair market value     85.00%  
Duration of offering period     6 months