Quarterly report pursuant to Section 13 or 15(d)

Discounted Cash Flow Method to Calculate Estimated Fair Value of Mastheads, Key Estimates and Assumptions (Detail)

v2.4.0.6
Discounted Cash Flow Method to Calculate Estimated Fair Value of Mastheads, Key Estimates and Assumptions (Detail)
6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Discounted Cash Flow Pricing Model, by Assumption [Line Items]    
Discount rate 8.50% 8.50%
Projected revenue growth ranges 1.50%  
Royalty growth rate 3.00% 3.00%
Minimum
   
Discounted Cash Flow Pricing Model, by Assumption [Line Items]    
Projected revenue growth ranges 1.50% 1.50%
Maximum
   
Discounted Cash Flow Pricing Model, by Assumption [Line Items]    
Projected revenue growth ranges 2.50% 2.50%