Long-term Debt - Capital Leases (Details) ft² in Thousands, $ in Millions	1 Months Ended
	Dec. 31, 2018 USD ($)	Jul. 31, 2018 USD ($) ft²	Jun. 30, 2018 USD ($)	Oct. 31, 2017 ft²
Office Building
Property, Plant and Equipment [Line Items]
Present value of net minimum payments			$ 24.9
Manufacturing Facility
Property, Plant and Equipment [Line Items]
Area of of real property | ft²				136
Present value of net minimum payments			$ 21.0
Scenario, Forecast | Office Building
Property, Plant and Equipment [Line Items]
Area of of real property | ft²		122
Term of capital lease contract		20 years
Future minimum payments		$ 47.8
Scenario, Forecast | Manufacturing Facility
Property, Plant and Equipment [Line Items]
Term of capital lease contract	31 years
Future minimum payments	$ 34.7