Quarterly report pursuant to Section 13 or 15(d)

Impairment of Goodwill and Other Indefinite-Lived Intangible Assets - Additional Information (Detail)

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Impairment of Goodwill and Other Indefinite-Lived Intangible Assets - Additional Information (Detail)
9 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Broadcast licenses
   
Goodwill and Intangible Assets Disclosure [Line Items]    
Percentage of indefinite-lived intangible assets 94.00%  
Mastheads
   
Goodwill and Intangible Assets Disclosure [Line Items]    
Percentage of indefinite-lived intangible assets 6.00%  
Excess of estimated fair value over carrying value, percentage   1.70%