XML 23 R48.htm IDEA: XBRL DOCUMENT v2.4.0.8
Investments - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Dec. 25, 2011
Schedule of Equity Method Investments [Line Items]      
Aggregate carrying value of equity investments $ 164,900,000    
Asset Impairment And Other Charges Before Tax 61,745,000 [1] 129,165,000 57,511,000
Advertising revenues 2,198,719,000 2,355,922,000 2,511,025,000
Digital
      
Schedule of Equity Method Investments [Line Items]      
Asset Impairment And Other Charges Before Tax 12,000,000 90,000,000  
Publishing
      
Schedule of Equity Method Investments [Line Items]      
Asset Impairment And Other Charges Before Tax 46,000,000 32,000,000 27,000,000
Advertising revenues 98,300,000 90,200,000 82,700,000
Non-Operating Charges | Digital
      
Schedule of Equity Method Investments [Line Items]      
Asset Impairment And Other Charges Before Tax 700,000 7,000,000 15,700,000
Non-Operating Charges | Publishing
      
Schedule of Equity Method Investments [Line Items]      
Asset Impairment And Other Charges Before Tax $ 2,774,000 [1]    
Investment Classified Ventures [Member]
      
Schedule of Equity Method Investments [Line Items]      
Equity Method Investment, Ownership Percentage 26.90% 23.60%  
[1] Total amounts may not sum due to rounding.