Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Additional Information (Detail)

v3.5.0.2
Fair Value Measurements - Additional Information (Detail) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2015
Sep. 24, 2016
Sep. 26, 2015
Sep. 24, 2016
Sep. 26, 2015
Nov. 09, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Indefinite-lived intangible assets, carrying value   $ 1,800,000 $ 22,300,000 $ 1,800,000 $ 22,300,000  
Indefinite-lived intangible assets, impairment charge   1,800,000 7,300,000 1,800,000 7,300,000  
Indefinite-lived intangible assets, fair value     15,000,000   15,000,000  
Carrying value of senior subordinated notes   395,269,000 396,982,000 395,269,000 396,982,000  
Senior notes [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Carrying value of senior subordinated notes   394,365,000 396,534,000 394,365,000 396,534,000  
Debt, aggregate principal amount $ 50,000,000   400,000,000   400,000,000  
Debt redemption price percentage 102.063%          
Senior notes [Member] | Estimate of Fair Value Measurement [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Estimated fair value of senior subordinated notes due 2018     410,500,000   410,500,000  
Senior notes [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Carrying value of senior subordinated notes     $ 396,500,000   $ 396,500,000  
6.125% Senior Notes Due in November 2023 [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Carrying value of senior subordinated notes           $ 400,000,000
Debt instrument interest rate stated, percentage           6.125%
6.125% Senior Notes Due in November 2023 [Member] | Senior notes [Member] | Estimate of Fair Value Measurement [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Estimated fair value of senior subordinated notes due 2018   430,300,000   430,300,000    
6.125% Senior Notes Due in November 2023 [Member] | Senior notes [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Carrying value of senior subordinated notes   $ 394,400,000   $ 394,400,000