Segment Reporting and Geographic Information Customer Reporting (Details)	6 Months Ended
	Jun. 30, 2017 Rate	Jun. 30, 2016 Rate
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage	11.20%	1.60%
Major Customer Two [Domain]
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage	6.00%	13.40%
Major Customer Three [Member]
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage	0.90%	10.20%