Other Income (Expense) (Details) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended
	Jun. 09, 2010 BsF	Apr. 02, 2010 BsF	Dec. 31, 2011 Pounds BsF		Dec. 31, 2010		Dec. 31, 2009
Other income (expense)			$ (31,700,000)	[1]	$ (28,100,000)	[1]	$ 7,000,000	[1]
Foreign currency transaction loss			(24,400,000)		7,700,000
Pre-tax charge on foreign currency devaluation transaction related to Venezuelan Bolivar		29,800,000			29,800,000
New official exchange rates of all goods for BsF per U.S. dollar			4.30
Prior official exchange rates of essential goods for BsF, per US dollar	6.88	2.60
Copper purchased, pounds			19,100,000
Foreign currency gains or losses			0
Foreign currency gains related to copper imports at the essential rate					16,600,000
Foreign exchange losses related to copper imports at the parallel rate					10,700,000
Not Designated as Hedging Instrument [Member]
Unrealized loss on derivatives			$ 6,100,000		$ 6,000,000

[1] See Note 22 -Restatement of Consolidated Financial Statements