v2.4.0.8
Stockholders' Equity and Stock-Based Compensation - Stock-Based Compensation Expense in Consolidated Statement of Operations (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 24, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 52,307 $ 40,572 $ 35,472
Cost of Revenues [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense 7,031 5,722 4,602
Research and Development [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense 7,179 5,328 4,852
Selling and Marketing [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense 8,915 7,355 5,954
General and Administrative [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense 20,153 18,667 20,064
Restructuring [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 9,029 $ 3,500