Summary of Significant Accounting Policies - Property, Plant and Equipment (Narrative) (Details)	12 Months Ended
	Dec. 31, 2016
Land Improvements
Property, Plant and Equipment
Estimated useful lives	15 years
Building and Improvements | Minimum
Property, Plant and Equipment
Estimated useful lives	10 years
Building and Improvements | Maximum
Property, Plant and Equipment
Estimated useful lives	39 years
Machinery and Equipment | Minimum
Property, Plant and Equipment
Estimated useful lives	3 years
Machinery and Equipment | Maximum
Property, Plant and Equipment
Estimated useful lives	20 years