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Long-Term Debt - Additional Information (Detail) - USD ($) |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 09, 2015 | Mar. 01, 2015 | Feb. 13, 2012 | Nov. 30, 2015 | Jan. 31, 2015 | Mar. 28, 2015 | Dec. 28, 2013 | Sep. 26, 2015 | Sep. 27, 2014 | Sep. 28, 2013 | Dec. 05, 2013 | Mar. 08, 2010
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt, aggregate principal amount |  |  |  |  |  |  |  | $ 400,139,000 | $ 450,239,000 |  |  |
Non-cash charge |  |  |  |  |  |  |  | 537,000 | 1,731,000 | $ 0 |  |
Subsequent Events [Member] | 6.125% Senior Notes Due in November 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt, aggregate principal amount | $ 400,000,000 |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest rate stated, percentage | 6.125% |  |  |  |  |  |  |  |  |  |  |
Senior notes due date | 2023-11 |  |  |  |  |  |  |  |  |  |  |
Asset-based Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Non-cash charge |  |  |  |  |  |  | $ 1,700,000 |  |  |  |  |
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt, aggregate principal amount |  |  |  |  |  |  |  | $ 0 | 0 |  |  |
Credit facility, additional borrowings available |  |  |  |  |  |  |  |  |  |  | $ 200,000,000 |
Credit facility, maturity date |  |  |  |  |  |  |  | Dec. 05, 2018 |  |  |  |
Borrowings outstanding |  |  |  |  |  |  |  | $ 0 |  |  |  |
Letters of credit outstanding |  |  |  |  |  |  |  | 0 |  |  |  |
Other letters of credit outstanding |  |  |  |  |  |  |  | $ 6,000,000 |  |  |  |
Debt interest terms |  |  |  |  |  |  |  | Borrowings under the Credit Facility bear interest at an index based on LIBOR or, at the option of the Company, the Base Rate (defined as the highest of (a) the SunTrust prime rate, (b) the Federal Funds Rate plus 0.5% and (c) one-month LIBOR plus 1.00%), plus, in either case, an applicable margin based on the Company’s total outstanding borrowings. Such applicable margin for LIBOR-based borrowings fluctuates between 1.25%-1.75% (and was 1.25% at September 26, 2015) and such applicable margin for Base Rate borrowings fluctuates between 0.25%-0.75% (and was 0.25% at September 26, 2015). |  |  |  |
Borrowing availability |  |  |  |  |  |  |  | $ 307,000,000 |  |  |  |
Credit facility, base rate computation, option third description |  |  |  |  |  |  |  | One-month LIBOR plus 1.00%), plus, in either case, an applicable margin based on the Company's total outstanding borrowings. |  |  |  |
Credit facility, base rate computation, option first description |  |  |  |  |  |  |  | SunTrust prime rate |  |  |  |
Credit facility, base rate computation, option second description |  |  |  |  |  |  |  | Federal Funds Rate plus 0.5% |  |  |  |
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 |  |  |  |
Debt issuance cost |  |  |  |  |  |  |  | $ 3,100,000 |  |  |  |
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Base Rate Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Applicable interest margin rate on the credit facility |  |  |  |  |  |  |  | 0.25% |  |  |  |
Applicable interest rate on the credit facility |  |  |  |  |  |  |  | 3.50% |  |  |  |
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | LIBOR-Based Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Senior subordinated notes due date |  |  |  |  |  |  |  | Dec. 31, 2018 |  |  |  |
Applicable interest margin rate on the credit facility |  |  |  |  |  |  |  | 1.25% |  |  |  |
Applicable interest rate on the credit facility |  |  |  |  |  |  |  | 1.40% |  |  |  |
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Minimum [Member] | Base Rate Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
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 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Minimum [Member] | LIBOR-Based Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
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 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Maximum [Member] | Base Rate Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Applicable interest margin rate on the credit facility |  |  |  |  |  |  |  | 0.75% |  |  |  |
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Maximum [Member] | LIBOR-Based Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Applicable interest margin rate on the credit facility |  |  |  |  |  |  |  | 1.75% |  |  |  |
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Asset-based Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, maximum principal amount |  |  |  |  |  |  |  |  |  |  | $ 390,000,000 |
Senior Subordinated Notes, Net of Unamortized Discount, Interest at 8.25%, Payable Semi-annually, Principal Due March 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt, aggregate principal amount |  |  |  |  |  |  |  | $ 399,691,000 | $ 449,529,000 |  |  | $ 400,000,000
Debt instrument interest rate stated, percentage |  |  |  |  |  |  |  | 8.25% |  |  |  | 8.25%
Senior subordinated notes due date |  |  |  |  |  |  |  | Mar. 01, 2018 |  |  |  |
Notes issue price percentage |  |  | 98.501% |  |  |  |  |  |  |  |  |
Debt, redemption of principal amount |  | $ 50,000,000 |  |  | $ 50,000,000 |  |  |  |  |  |  |
Redemption date of senior subordinated notes |  |  |  |  |  |  |  | Mar. 01, 2015 |  |  |  |
Debt redemption price percentage |  | 102.063% |  |  | 102.063% |  |  |  |  |  |  |
Charge recognized during debt redemption |  |  |  |  |  | $ 1,600,000 |  |  |  |  |  |
Debt redemption terms |  |  |  |  |  |  |  | The Company could redeem some or all of the remaining 2018 Notes at any time after March 1, 2015 for 102.063% and on or after March 1, 2016 for 100%, plus accrued and unpaid interest. |  |  |  |
Senior Subordinated Notes, Net of Unamortized Discount, Interest at 8.25%, Payable Semi-annually, Principal Due March 2018 [Member] | Subsequent Events [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest rate stated, percentage |  |  |  | 8.25% |  |  |  |  |  |  |  |
Senior subordinated notes due date |  |  |  | Mar. 01, 2018 |  |  |  |  |  |  |  |
Senior Subordinated Notes, Net of Unamortized Discount, Interest at 8.25%, Payable Semi-annually, Principal Due March 2018 [Member] | March 2015 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt redemption price percentage |  |  |  |  |  |  |  | 102.063% |  |  |  |
Senior Subordinated Notes, Net of Unamortized Discount, Interest at 8.25%, Payable Semi-annually, Principal Due March 2018 [Member] | March 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt redemption price percentage |  |  |  |  |  |  |  | 100.00% |  |  |  |
Senior Subordinated Notes, Net of Unamortized Discount, Interest at 8.25%, Payable Semi-annually, Principal Due March 2018 [Member] | Upon Change Of Control [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt redemption price percentage |  |  |  |  |  |  |  | 101.00% |  |  |  |
Senior Subordinated Notes, Net of Unamortized Discount, Interest at 8.25%, Payable Semi-annually, Principal Due March 2018 [Member] | Revolving Credit Facility, Interest at Alternate Base Rate Plus a Margin of 0.75% to 1.75%, or LIBOR Plus a Margin of 1.75% to 2.75%, Final Maturity June 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Additional issuance amount on senior notes |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |
Issuance price of additional senior subordinated notes |  |  |  |  |  |  |  | 2018 Notes at a price of 98.501%, plus accrued interest from September 1, 2011, in a private placement. |  |  |  |

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