Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Components of Long-term Debt (Details)

v3.19.1
Long-Term Debt - Components of Long-term Debt (Details) - USD ($)
3 Months Ended 6 Months Ended
Mar. 30, 2019
Mar. 30, 2019
Sep. 29, 2018
Mar. 31, 2018
Dec. 30, 2017
Dec. 14, 2017
Nov. 09, 2015
Debt Instrument [Line Items]              
Total $ 697,765,000 $ 697,765,000 $ 692,153,000 $ 691,104,000      
Less current portion (5,119,000) (5,119,000) (122,000) (20,000)      
Long-term portion 692,646,000 692,646,000 692,031,000 691,084,000      
Senior notes              
Debt Instrument [Line Items]              
Unamortized debt issuance costs (7,791,000) (7,791,000) (8,425,000) (9,053,000)      
Total 692,209,000 692,209,000 691,575,000 690,947,000      
Senior notes | Senior notes, interest at 6.125%, payable semi-annually, principal due November 2023              
Debt Instrument [Line Items]              
Notes $ 400,000,000 $ 400,000,000 400,000,000 400,000,000     $ 400,000,000
Debt instrument maturity period   Nov. 01, 2023          
Debt instrument interest rate stated, percentage 6.125% 6.125%         6.125%
Senior notes | Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028              
Debt Instrument [Line Items]              
Notes $ 300,000,000 $ 300,000,000 300,000,000 300,000,000   $ 300,000,000.0  
Total $ 295,900,000 $ 295,900,000 295,600,000 295,300,000      
Debt instrument maturity period   Feb. 01, 2028          
Debt instrument interest rate stated, percentage 5.125% 5.125%     5.125% 5.125%  
Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021              
Debt Instrument [Line Items]              
Total $ 0 $ 0 0 0      
Debt instrument maturity period   Apr. 01, 2021          
Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | Base rate borrowings              
Debt Instrument [Line Items]              
Applicable interest margin rate on the credit facility 0.25%            
Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | LIBOR-based borrowings              
Debt Instrument [Line Items]              
Applicable interest margin rate on the credit facility 1.25%            
Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | Minimum | Base rate borrowings              
Debt Instrument [Line Items]              
Applicable interest margin rate on the credit facility   0.25%          
Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | Minimum | LIBOR-based borrowings              
Debt Instrument [Line Items]              
Applicable interest margin rate on the credit facility   1.25%          
Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | Maximum | Base rate borrowings              
Debt Instrument [Line Items]              
Applicable interest margin rate on the credit facility   0.50%          
Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | Maximum | LIBOR-based borrowings              
Debt Instrument [Line Items]              
Applicable interest margin rate on the credit facility   1.50%          
Other notes payable              
Debt Instrument [Line Items]              
Total $ 5,556,000 $ 5,556,000 $ 578,000 $ 157,000