Acquisition of Corporate Real Estate Property, Plant and Equipment (Details) $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Assets, Net	5 years 1 month 6 days
Amortization of Intangible Assets	$ 0.5
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	39 years
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years