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Revenue Recognition (Tables)
6 Months Ended
Jun. 30, 2020
Revenue Recognition [Abstract]  
Revenue from contracts
   

Three Months Ended

June 30,

   

Six Months Ended

June 30,

 
    2020     2019     2020     2019  
                         
Lead generation   $ 14,263     $ 21,691     $ 32,723     $ 47,389  
Digital advertising                                
Clicks     2,321       4,456       7,670       9,515  
Display and other advertising     435       976       1,098       1,795  
Total digital advertising     2,756       5,432       8,768       11,310  
                                 
Other revenues     14       19       14       47  
   Total revenues   $ 17,033     $ 27,142     $ 41,505     $ 58,746