Derivative Instruments and Hedging Activities (Details)	6 Months Ended
	Jun. 30, 2014 Natural Gas [Member] USD ($)	Jun. 30, 2014 Zinc [Member] USD ($)	Jun. 30, 2014 Electricity [Member] USD ($)	Jun. 30, 2014 Iron Ore [Member] USD ($)	Jun. 30, 2014 Commodity Contract [Member] Nickel [Member] lb	Dec. 31, 2013 Commodity Contract [Member] Nickel [Member] lb	Jun. 30, 2014 Commodity Contract [Member] Natural Gas [Member] MMBTU	Dec. 31, 2013 Commodity Contract [Member] Natural Gas [Member] MMBTU	Jun. 30, 2014 Commodity Contract [Member] Zinc [Member] lb	Dec. 31, 2013 Commodity Contract [Member] Zinc [Member] lb	Jun. 30, 2014 Commodity Contract [Member] Electricity [Member] MW	Dec. 31, 2013 Commodity Contract [Member] Electricity [Member] MW	Jun. 30, 2014 Commodity Contract [Member] Iron Ore [Member] t	Dec. 31, 2013 Commodity Contract [Member] Iron Ore [Member] t	Jun. 30, 2014 Commodity Contract [Member] Hot Roll Carbon Steel Coils [Member] T	Dec. 31, 2013 Commodity Contract [Member] Hot Roll Carbon Steel Coils [Member] T	Jun. 30, 2014 Foreign Exchange Contract [Member] EUR (€)	Dec. 31, 2013 Foreign Exchange Contract [Member] EUR (€)
Derivative [Line Items]
Nonmonetary Notional Amount of Derivatives					515,500	763,300	3,240,000	3,240,000	6,000,000	12,000,000	342,200	0	1,471,900	190,735	156,400	74,147
Derivative, Notional Amount																	€ 18,970,000	€ 17,730,000
Beginning Settlement Date	Jul. 31, 2014	Jul. 31, 2014	Jul. 31, 2014	Jul. 31, 2014
Ending Settlement Date	Dec. 31, 2014	Dec. 31, 2014	Sep. 30, 2014	Nov. 30, 2014
Gains (losses) expected to be reclassified into cost of products sold within the next twelve months	$ 300,000	$ 700,000	$ 1,300,000	$ (10,300,000)