Revenue Disaggregated Revenue by Geography (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Revenues	$ 372,033,000	$ 247,739,000
EMEA [Member]
Disaggregation of Revenue [Line Items]
Revenues	39,524,000	24,953,000
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenues	18,624,000	11,416,000
Latin America [Member]
Disaggregation of Revenue [Line Items]
Revenues	13,093,000	6,477,000
North America [Member]
Disaggregation of Revenue [Line Items]
Revenues	19,135,000	11,561,000
Other foreign countries [Member]
Disaggregation of Revenue [Line Items]
Revenues	80,000	0
Foreign [Member]
Disaggregation of Revenue [Line Items]
Revenues	90,456,000	54,407,000
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	$ 281,577,000	$ 193,332,000