Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Jun. 24, 2012
Loss Contingencies [Line Items]
Outstanding letters of credit	$ 36.1
Commitments and Contingencies (Textual) [Abstract]
Asset Pledged as Collateral	2.2
Insurance and other potential claims [Member]
Loss Contingencies [Line Items]
Outstanding letters of credit	$ 2.2

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant