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Long-term Debt (Schedule of Long-term Debt) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 26, 2012	Dec. 28, 2011
Debt Instrument [Line Items]
Capital lease obligations	$ 20,134	$ 22,457
Total long-term debt	190,134	220,556
Unamortized discount	0	(2,251)
Total long-term debt, net	190,134	218,305
Less current maturities and mandatory prepayments	12,681	6,971
Noncurrent portion of long-term debt	177,453	211,334
Term Loans due April 12 2017 [Member]
Debt Instrument [Line Items]
Long-term debt	170,000	0
Maturity date	Apr. 12, 2017
Term Loans due September 30 2016 [Member]
Debt Instrument [Line Items]
Long-term debt	0	198,000
Maturity date	Sep. 30, 2016
Other note payable due January 1 2013 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 0	$ 99
Interest rate	9.17%
Maturity date	Jan. 01, 2013

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- Definition

Long Term Debt and Capital Lease Obligations, Carrying Amount

+ References

No definition available.

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- Definition

Long-term Debt and Capital Lease Obligations, Current and Noncurrent, net of unamortized discount

+ References

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7



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-SubTopic 30

-Section 50

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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-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.



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- Definition

Interest rate stated in the contractual debt agreement.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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-Publisher SEC

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-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 2, 4

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

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Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

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Obligation related to long-term debt (excluding convertible debt) and capital leases, the portion which is due in one year or less in the future.

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