Supplemental Guarantor Condensed Consolidating Financials - Additional Information (Detail) (Parent/Issuer [Member])	12 Months Ended
Sep. 27, 2014
Parent/Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Ownership percentage in domestic subsidiaries	100.00%

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

No definition available.

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration