For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Geographic Information - Narrative (Details) - segment	3 Months Ended		6 Months Ended
Geographic Information - Narrative (Details) - segment	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting [Abstract]
Number of operating segments			1
United States \| Revenue \| Geographic concentration risk
Concentration Risk [Line Items]
Concentration risk, percentage	61.00%	64.00%	62.00%	64.00%