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Long-Term Debt - Components of Long-Term Debt (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |  |  |  |  | 3 Months Ended
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Dec. 28, 2013 | Sep. 28, 2013 | Dec. 29, 2012 | Dec. 28, 2013 Senior subordinated notes, net of unamortized discount, interest at 8.25%, payable semi-annually, principal due March 2018 [Member] | Mar. 08, 2010 Senior subordinated notes, net of unamortized discount, interest at 8.25%, payable semi-annually, principal due March 2018 [Member] | Dec. 28, 2013 Option Two [Member] Asset-based revolving credit facility, interest at LIBOR plus a margin [Member] | Dec. 28, 2013 Option Two [Member] Minimum [Member] Revolving credit facility, interest at Alternate Base Rate plus a margin [Member] | Dec. 28, 2013 Option Two [Member] Minimum [Member] Asset-based revolving credit facility, interest at LIBOR plus a margin [Member] | Dec. 28, 2013 Option Two [Member] Maximum [Member] Revolving credit facility, interest at Alternate Base Rate plus a margin [Member] | Dec. 28, 2013 Option Two [Member] Maximum [Member] Asset-based revolving credit facility, interest at LIBOR plus a margin [Member] | Dec. 28, 2013 Option One [Member] Asset-based revolving credit facility, interest at LIBOR plus a margin [Member] | Dec. 28, 2013 Option One [Member] Minimum [Member] Revolving credit facility, interest at Alternate Base Rate plus a margin [Member] | Dec. 28, 2013 Option One [Member] Minimum [Member] Asset-based revolving credit facility, interest at LIBOR plus a margin [Member] | Dec. 28, 2013 Option One [Member] Maximum [Member] Revolving credit facility, interest at Alternate Base Rate plus a margin [Member] | Dec. 28, 2013 Option One [Member] Maximum [Member] Asset-based revolving credit facility, interest at LIBOR plus a margin [Member]
Components of long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest rate stated, percentage |  |  |  | 8.25% | 8.25% |  |  |  |  |  |  |  |  |  |
Applicable interest rate on the Credit Facility | 3.50% |  |  |  |  | 0.25% | 1.75% | 0.25% | 2.75% | 0.75% | 1.25% | 0.75% | 1.25% | 1.75% | 1.75%
Unamortized original issue discount | $ 556 | $ 583 | $ 663 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 + Details
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- Details
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