Derivative Instruments and Hedging Activities (Details)	9 Months Ended
	Sep. 30, 2014 Natural Gas [Member] USD ($)	Sep. 30, 2014 Zinc [Member] USD ($)	Sep. 30, 2014 Electricity [Member] USD ($)	Sep. 30, 2014 Iron Ore [Member] USD ($)	Sep. 30, 2014 Commodity Contract [Member] Nickel [Member] lb	Dec. 31, 2013 Commodity Contract [Member] Nickel [Member] lb	Sep. 30, 2014 Commodity Contract [Member] Natural Gas [Member] MMBTU	Dec. 31, 2013 Commodity Contract [Member] Natural Gas [Member] MMBTU	Sep. 30, 2014 Commodity Contract [Member] Zinc [Member] lb	Dec. 31, 2013 Commodity Contract [Member] Zinc [Member] lb	Sep. 30, 2014 Commodity Contract [Member] Electricity [Member] MW	Dec. 31, 2013 Commodity Contract [Member] Electricity [Member] MW	Sep. 30, 2014 Commodity Contract [Member] Iron Ore [Member] t	Dec. 31, 2013 Commodity Contract [Member] Iron Ore [Member] t	Sep. 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	Sep. 30, 2014 Foreign Exchange Contract [Member] EUR (€)	Dec. 31, 2013 Foreign Exchange Contract [Member] EUR (€)
Derivative [Line Items]
Nonmonetary Notional Amount of Derivatives					382,400	763,300	17,232,500	3,240,000	15,000,000	12,000,000	767,000	0	1,084,200	190,735	87,800	74,147
Derivative, Notional Amount																	€ 19,640,000	€ 17,730,000
Beginning Settlement Date	Oct. 31, 2014	Oct. 31, 2014	Oct. 31, 2014	Oct. 31, 2014
Ending Settlement Date	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Nov. 30, 2016
Gains (losses) expected to be reclassified into cost of products sold within the next twelve months	$ 2,800,000	$ 300,000	$ 1,200,000	$ (10,900,000)