Business Combinations - Schedule of Unaudited Pro Forma Information, Assumptions (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Dec. 24, 2011
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenue	$ 630,844
Net loss	$ (10,195)
Basic and diluted net loss per common share	$ (0.04)

Business Acquisitions Pro Forma Earnings Per Share Basic And Diluted

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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