Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Additional Information (Detail)

v2.4.0.8
Fair Value Measurements - Additional Information (Detail) (USD $)
3 Months Ended 12 Months Ended
Sep. 28, 2013
Sep. 28, 2013
Sep. 29, 2012
Sep. 24, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Goodwill impairment $ 7,709,000 $ 7,709,000 $ 0 $ 0
Senior subordinated notes due date   Jun. 01, 2018    
Senior subordinated notes [Member]
       
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Obligation to pay principle on the company Senior Subordinates Notes 450,000,000 450,000,000    
Senior subordinated notes, percentage 8.25% 8.25%    
Senior subordinated notes [Member] | Portion at Fair Value, Fair Value Disclosure [Member]
       
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Senior subordinated notes due 2018 449,500,000 449,500,000    
Senior subordinated notes [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member]
       
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value and carrying value of senior subordinated Notes $ 449,400,000 $ 449,400,000