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Goodwill, Indefinite-Lived Intangible Assets, and Amortizable Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 30, 2012 | Dec. 25, 2011
--- | --- | ---
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Gross | $ 3,568,013 | $ 3,555,413
Accumulated Amortization | 221,231 | 188,333
Net | 3,346,782 | 3,367,080
Customer Relationships |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Gross | 313,567 | 298,437
Accumulated Amortization | 197,300 | 169,499
Net | 116,267 | 128,938
Other Intangible Assets |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Gross | 56,965 | 43,624
Accumulated Amortization | 23,931 | 18,834
Net | 33,034 | 24,790
Mastheads and trade names |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Gross | 95,308 | 93,163
Accumulated Amortization | 0 | 0
Net | 95,308 | 93,163
Television station FCC licenses |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Gross | 255,304 | 255,304
Accumulated Amortization | 0 | 0
Net | 255,304 | 255,304
Goodwill |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Gross | 2,846,869 | 2,864,885
Accumulated Amortization | 0 | 0
Net | $ 2,846,869 | $ 2,864,885

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