v2.4.0.8
Fair Value Measurements - Schedule of Estimated Fair Value of Intangible Assets, goodwill and Cost Method Equity Investment Measured on Nonrecurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Sep. 24, 2011
Fair Value Measurements Of Financial Instruments [Line Items]          
Goodwill, Total Gains (Losses) $ (1,100,000) $ (5,800) $ (1,117,369) $ (5,826)  
Equipment, Total Gains (Losses)     (4,993) (6,452)  
Cost-method equity investment, Total Gains (Losses)     (6,438)   (2,445)
Total Gains (Losses)     (1,128,800) (12,278)  
Goodwill 277,840   277,840    
Equipment 1,363   1,363    
Cost-method equity investments 1,483   1,483   345
Quoted Prices in Active Market for Identical Assets (Level 1) [Member]
         
Fair Value Measurements Of Financial Instruments [Line Items]          
Goodwill              
Equipment              
Cost-method equity investments             
Significant Other Observable Inputs (Level 2) [Member]
         
Fair Value Measurements Of Financial Instruments [Line Items]          
Goodwill              
Equipment              
Cost-method equity investments             
Significant Unobservable Inputs (Level 3) [Member]
         
Fair Value Measurements Of Financial Instruments [Line Items]          
Goodwill 277,840   277,840    
Equipment 1,363   1,363    
Cost-method equity investments $ 1,483   $ 1,483   $ 345