The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 01-13
-Paragraph 7
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6365675&loc=d3e16285-107787

Name:	us-gaap_GainOnBusinessInterruptionInsuranceRecovery
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Insurance Claims (Details) (USD $)	3 Months Ended			6 Months Ended		12 Months Ended
Insurance Claims (Details) (USD $)	Jul. 02, 2011	Jun. 26, 2010	Mar. 27, 2010	Jul. 02, 2011	Jun. 26, 2010	Dec. 25, 2010	Dec. 26, 2009	Dec. 27, 2008
Insurance Claim [Abstract]
Insurance proceeds received						$ 35,300,000
Insurance deductible						500,000
Insurance settlement	0	(1,210,000)		0	21,296,000	21,300,000
Insurance proceeds, received in installments			23,300,000				7,300,000	4,700,000
Insurance proceeds classified as investing activities				$ 0	$ 17,703,000