Property, Plant and Equipment, Net - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended
	Jan. 31, 2017 USD ($) ft²	Mar. 31, 2018 USD ($)
Property, Plant and Equipment [Line Items]
Area of interior floor space (in sqft) | ft²	30,000
Build-to-suit facility lease obligation		$ 5.0
Foreign exchange loss		0.1
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Capitalized amount of build-to-suit asset	$ 4.2
Other Current Liabilities
Property, Plant and Equipment [Line Items]
Build-to-suit facility lease obligation		$ 0.3