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Revenues (Tables)
3 Months Ended
Mar. 31, 2020
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
The following table presents revenues disaggregated by revenue source (dollars in thousands):
 
Three Months Ended March 31, 2020
 
Three Months Ended March 31, 2019
Advertising revenues
$
224,540

 
$
262,005

Non-advertising revenues
3,374

 
5,491

Total revenue
$
227,914

 
$
267,496