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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