Revenues - Revenues By Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	$ 141,259	$ 112,362	$ 288,421	$ 228,172
United States
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	107,547	93,594	225,010	187,927
Other countries
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	$ 33,712	$ 18,768	$ 63,411	$ 40,245
Revenue from Contract with Customer | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Revenue from Contract with Customer | Geographic Concentration Risk | United States
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	76.00%	83.00%	78.00%	82.00%
Revenue from Contract with Customer | Geographic Concentration Risk | Other countries
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	24.00%	17.00%	22.00%	18.00%