Goodwill and Other Intangible Assets Acquired (Details) - Intangible Assets (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 25, 2011	Dec. 26, 2010
Amortized other intangible assets
Gross carrying amount	$ 79,015	$ 90,418
Accumulated amortization	(69,755)	(69,383)
Amortized other intangible assets, net	9,260	21,035
Trade names	12,979	14,380
Other intangible assets acquired	22,239	35,415
Content [Member]
Amortized other intangible assets
Gross carrying amount	21,384	25,712
Accumulated amortization	(17,483)	(16,510)
Amortized other intangible assets, net	3,901	9,202
Weighted average useful life (years)	2	7
Customer Lists [Member]
Amortized other intangible assets
Gross carrying amount	24,508	28,316
Accumulated amortization	(21,448)	(21,281)
Amortized other intangible assets, net	3,060	7,035
Weighted average useful life (years)	2	6
Other Intangible Assets [Member]
Amortized other intangible assets
Gross carrying amount	33,123	36,390
Accumulated amortization	(30,824)	(31,592)
Amortized other intangible assets, net	$ 2,299	$ 4,798
Weighted average useful life (years)	4	3

The calculated weighted-average amortization period of a major class of finite-lived intangible assets acquired during the current period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

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-Publisher FASB

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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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Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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