Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Additional Information (Detail)

v3.8.0.1
Long-Term Debt - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 22, 2016
Nov. 09, 2015
Dec. 31, 2015
Dec. 26, 2015
Sep. 30, 2017
Sep. 24, 2016
Sep. 26, 2015
Components of long-term debt              
Interest expense         $ 28,209,000 $ 42,847,000 $ 40,027,000
Non-cash charge       $ 3,300,000 0 3,337,000 $ 537,000
Unamortized debt issuance costs         4,800,000    
Senior notes              
Components of long-term debt              
Unamortized debt issuance costs         $ 4,840,000 $ 5,635,000  
Senior notes | Senior Notes Due November 2023              
Components of long-term debt              
Debt, aggregate principal amount   $ 400,000,000.0          
Debt instrument interest rate stated, percentage   6.125%     6.125%    
Debt issuance costs   $ 6,300,000          
Debt redemption price percentage   35.00%          
Senior notes | Senior Notes Due November 2023 | Redemption prior to November 15, 2018              
Components of long-term debt              
Debt redemption price percentage   106.125%          
Senior notes | Senior Notes Due November 2023 | Redemption on or after November 15, 2018              
Components of long-term debt              
Debt redemption price percentage   104.594%          
Senior notes | Senior Notes Due November 2023 | Redemption on or after November 15, 2019              
Components of long-term debt              
Debt redemption price percentage   103.063%          
Senior notes | Senior Notes Due November 2023 | Redemption on or after November 15, 2020              
Components of long-term debt              
Debt redemption price percentage   101.531%          
Senior notes | Senior Notes Due November 2023 | Redemption on or after November 15, 2021              
Components of long-term debt              
Debt redemption price percentage   100.00%          
Senior notes | Senior Notes Due November 2023 | Upon change of control              
Components of long-term debt              
Debt redemption price percentage   101.00%          
Senior notes | Senior Notes Repaid December 2015              
Components of long-term debt              
Debt instrument interest rate stated, percentage     8.25%   8.25%    
Debt, aggregate principal amount redeemed       $ 400,000,000      
Debt redemption percentage     102.063%        
Charge recognized during debt redemption     $ 8,300,000        
Interest expense payment reriod     30 days        
Interest expense     $ 2,700,000        
Non-cash charge     $ 3,300,000        
Asset-based revolving credit facility | Asset-based Revolving Credit Facility              
Components of long-term debt              
Debt issuance costs         $ 1,200,000    
Credit facility, maximum principal amount $ 400,000,000.0            
Credit facility, additional borrowings available $ 200,000,000.0            
Credit facility, maturity date Apr. 22, 2021            
Borrowings outstanding         0    
Letters of credit outstanding         0    
Other letters of credit outstanding         1,800,000    
Borrowing availability         $ 368,900,000    
Credit facility, base rate computation, option second description, basis spread percentage         0.50%    
Credit facility, basis percentage for calculation of variable rate spread         1.00%    
Debt instrument fixed charge coverage ratio         1.00    
Asset-based revolving credit facility | Asset-based Revolving Credit Facility | LIBOR              
Components of long-term debt              
Applicable interest margin rate on the credit facility         1.25%    
Applicable interest rate on the credit facility         2.50%    
Asset-based revolving credit facility | Asset-based Revolving Credit Facility | Base Rate              
Components of long-term debt              
Applicable interest margin rate on the credit facility         0.25%    
Applicable interest rate on the credit facility         4.50%    
Asset-based revolving credit facility | Asset-based Revolving Credit Facility | Minimum | LIBOR              
Components of long-term debt              
Applicable interest margin rate on the credit facility         1.25%    
Asset-based revolving credit facility | Asset-based Revolving Credit Facility | Minimum | Base Rate              
Components of long-term debt              
Applicable interest margin rate on the credit facility         0.25%    
Asset-based revolving credit facility | Asset-based Revolving Credit Facility | Maximum | LIBOR              
Components of long-term debt              
Applicable interest margin rate on the credit facility         1.50%    
Asset-based revolving credit facility | Asset-based Revolving Credit Facility | Maximum | Base Rate              
Components of long-term debt              
Applicable interest margin rate on the credit facility         0.50%