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Commitments And Contingencies (Details) (USD $) | 12 Months Ended |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2011 | Dec. 25, 2010 | Dec. 26, 2009 | Dec. 31, 2011 Guarantee Payment Of Insurance Claims [Member] | Dec. 31, 2011 Credit Agreement [Member] | Mar. 31, 2007 Damage Award [Member] | Dec. 31, 2011 Damage Award [Member] | Dec. 29, 2007 Damage Award [Member]
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |
Letters of credit outstanding |  |  |  | $ 45,165,000 | $ 33,499,000 |  |  |
Retained liability of self-insurance program |  |  |  |  |  |  |  | 5,000,000
Operating Insurance and Claims Costs, Production | 42,766,000 | 49,334,000 | 45,918,000 |  |  | 5,000,000 |  |
Self insurance reserve, current | 76,624,000 | 40,215,000 |  |  |  |  | 40,200,000 |
Other receivables | $ 53,263,000 | $ 23,943,000 |  |  |  |  | $ 40,200,000 |

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- Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Insurance and claims costs directly related to goods produced and sold, or services rendered, during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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- Definition Carrying amounts due as of the balance sheet date from parties or arising from transactions not otherwise specified in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 8 -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 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid within one year (or the normal operating cycle, if longer). + References No definition available. + Details
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