XML 43 R32.htm IDEA: XBRL DOCUMENT v3.10.0.1
Revenue Recognition - Narrative (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Revenue from External Customer [Line Items]      
Deferred commissions $ 300   $ 200
Revenue recognized, previously deferred 2,600 $ 6,100  
Deferred revenue $ 15,186   $ 13,095
Minimum [Member]      
Revenue from External Customer [Line Items]      
Average duration of the data creation process 12 months    
Payment terms of non-exclusive license contracts 30 days    
Maximum [Member]      
Revenue from External Customer [Line Items]      
Average duration of the data creation process 18 months    
Payment terms of non-exclusive license contracts 12 months