Disclosures About Derivative Instruments and Hedging Activities (Details)	6 Months Ended
	Jun. 30, 2013 Natural Gas [Member] USD ($)	Jun. 30, 2013 Zinc [Member] USD ($)	Jun. 30, 2013 Iron Ore [Member] USD ($)	Jun. 30, 2013 Commodity Contract [Member] Nickel [Member] lb	Dec. 31, 2012 Commodity Contract [Member] Nickel [Member] lb	Jun. 30, 2013 Commodity Contract [Member] Natural Gas [Member] MMBTU	Dec. 31, 2012 Commodity Contract [Member] Natural Gas [Member] MMBTU	Jun. 30, 2013 Commodity Contract [Member] Zinc [Member] lb	Dec. 31, 2012 Commodity Contract [Member] Zinc [Member] lb	Jun. 30, 2013 Commodity Contract [Member] Iron Ore [Member] T	Dec. 31, 2012 Commodity Contract [Member] Iron Ore [Member] T	Jun. 30, 2013 Commodity Contract [Member] Hot Roll Carbon Steel Coils [Member] t	Dec. 31, 2012 Commodity Contract [Member] Hot Roll Carbon Steel Coils [Member] t	Jun. 30, 2013 Foreign Exchange Contract [Member] EUR (€)	Dec. 31, 2012 Foreign Exchange Contract [Member] EUR (€)
Derivative [Line Items]
Nonmonetary Notional Amount of Derivatives				730,100	420,100	6,000,000	9,000,000	12,000,000	0	664,500	1,140,000	18,900	30,000
Derivative, Notional Amount														€ 22,460,100	€ 15,950,000
Settlement Dates	July 2013 to December 2013	January 2014 to December 2014	July 2013 to December 2013
Gains (losses) expected to be reclassified into cost of products sold within the next twelve months	$ 700,000	$ 0	$ (800,000)