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Employee Stock Award, Option and Benefit Plans - Stock Option Plans (Details) - shares
12 Months Ended
Oct. 03, 2015
Sep. 28, 2013
Mar. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Employee Service Share-based Compensation, Options, Total Compensation Cost Not yet Recognized, Period for Recognition 1 month    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 6,747,691    
Number of common stock remain available for grant 5,514,171    
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options vesting periods (in years) 3 years    
Nonemployee Director Option [Member] | Director [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 3,500   3,500
Stock Options | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options vesting periods (in years) 2 years    
Stock Options | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options vesting periods (in years) 4 years    
Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options vesting periods (in years) 3 years    
Performance RSUs | Annual vesting      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options vesting periods (in years) 3 years    
Performance RSUs | Single vest measurement      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options vesting periods (in years)   3 years