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Trademarks and Other Intangibles, Net - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended 1 Months Ended 1 Months Ended 1 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Apr. 30, 2011
Trademarks
Hardy Way
Apr. 26, 2011
Hardy Way
Apr. 30, 2011
Hardy Way
Licensing agreements
Jun. 30, 2010
Trademarks
Peanuts Worldwide
Jun. 30, 2010
Peanuts Worldwide
Jun. 30, 2010
Peanuts Worldwide
Licensing agreements
Intangible Assets by Major Class [Line Items]                    
Controlling interest           85.00%     80.00%  
Increase in value of indefinite life trademarks         $ 96,500,000     $ 153,000,000    
Increase in value of licensing agreements             1,000,000     1,100,000
Amortization expense for intangible assets $ 1,600,000 $ 2,100,000 $ 3,639,000 $ 4,224,000