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Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Commitments And Contingencies Disclosure [Abstract]    
Rental expenses $ 276 $ 43
Data and media costs incurred 479 $ 59
Material capital commitments under non-cancellable data licensing agreements 15,634  
Provision for claims $ 238