Summary of Significant Accounting Policies Property, Plant and Equipment Narrative (Details)	12 Months Ended
	Dec. 31, 2012
Building [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated usefule life	20 years
Building [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated usefule life	30 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated usefule life	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated usefule life	10 years