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Summarized Results of Business Held for Sale (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Income (loss) from discontinued operations, net of tax $ 3,095 $ (3,798)
Careers - China, Latin America and Turkey
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Net revenue   2,399
Income (loss) from discontinued operations, net of tax $ 3,095 $ (3,798)