Annual report pursuant to Section 13 and 15(d)

Income from Discontinued Operations Amounts as Reported on Consolidated Statements of Operations (Parenthetical) (Detail)

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Income from Discontinued Operations Amounts as Reported on Consolidated Statements of Operations (Parenthetical) (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Termination benefits recorded $ 2,472,000    
Inventory impairment charges 2,100,000 1,500,000  
Goodwill impairment charges 9,194,000 [1]   22,456,000
Discontinued operations
      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Termination benefits recorded 800,000    
Exit charge for non-cancellable facility lease 1,000,000    
Exit activity charges paid 300,000    
Inventory impairment charges 2,500,000    
Property and equipment impairment charges 400,000    
Goodwill impairment charges 6,700,000    
Discontinued operations | Deferred advertising costs
      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Impairment charge 3,800,000    
Discontinued operations | Advances
      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Impairment charge 800,000    
Discontinued operations | Media Library
      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Intangible assets impairment charges 2,100,000    
Discontinued operations | Other Intangible Assets
      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Intangible assets impairment charges $ 3,500,000    
[1] Cash flows in 2013 include the $25.0 million gain from the sale of RSOL stock, the sale of GVE and the closure of the DRTV Business Unit.