Segment and Geographic Information - Narrative (Details) - segment			1 Months Ended	2 Months Ended	3 Months Ended	5 Months Ended	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2019	Jun. 02, 2019	Jun. 30, 2018	Jun. 02, 2019	Jun. 30, 2019	Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segments							2
Number of reportable segments							1
Non-US | Long-lived Assets | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	50.40%	53.40%
One Customer | Revenue | Customer Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage			12.50%	9.90%	10.80%	8.50%		10.90%