Summary of Significant Accounting Policies - Property, Buildings and Equipment (Details)	12 Months Ended
	Dec. 31, 2018
Buildings [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Land and Land Improvements [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Machinery and Equipment [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Machinery and Equipment [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Assets Held under Capital Leases [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Assets Held under Capital Leases [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	4 years