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Revenue (Tables)
 12 Months Ended
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
The following table summarizes revenue by type of service for the periods presented (in thousands):
 
Year Ended December 31,
 
2019
 
2018
 
2017
Marketplace revenue (1)
$
593,646

 
$
444,765

 
$
329,362

Services revenue
224,733

 
158,928

 
111,869

Revenue
$
818,379

 
$
603,693

 
$
441,231

(1)
Other revenue for the years ended December 31, 2019, 2018, and 2017 has been reclassified and presented within Marketplace revenue. Comparative periods have been reclassified to conform to current period presentation.