Debt Obligations - Debt & Capital Leases (Details) (USD $) In Thousands, unless otherwise specified	Mar. 25, 2012	Dec. 25, 2011
Total debt & capital lease obligations
Total debt	$ 767,598	$ 766,439
Capital lease obligations	6,685	6,681
Total debt and capital lease obligations	774,283	773,120
Notes Due 2012 [Member]
Total debt & capital lease obligations
Long term debt, current maturities	74,934	74,900
Interest rate on debt	4.61%
Notes Due 2015 [Member]
Total debt & capital lease obligations
Long term debt	249,899	249,891
Interest rate on debt	5.00%
Notes Due 2016 [Member]
Total debt & capital lease obligations
Long term debt	220,966	220,787
Interest rate on debt	6.625%
Option To Repurchase Headquarters Building 2019 [Member]
Total debt & capital lease obligations
Long term debt	$ 221,799	$ 220,861

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.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Interest rate stated in the contractual debt agreement.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. 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, and after deducting unamortized discount or premiums, if any.

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Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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