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Summarized Results of Business Held for Sale (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Discontinued Operations [Line Items]        
Loss from discontinued operations, net of tax $ 759 $ 4,203 $ 6,893 $ 13,816
Careers - China, Latin America and Turkey
       
Discontinued Operations [Line Items]        
Net revenue   12,424 2,399 24,750
Loss from discontinued operations, net of tax $ 759 $ 4,203 $ 6,893 $ 13,816