Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

	Interest Rate  2011		December 31,
Dollar amounts in millions			2011			2010
Debentures:
Senior secured notes, maturing 2017, interest rates fixed	13	%	$	189.6		$	183.5
Bank credit facilities:
Chilean term credit facility, maturing 2019, interest rates fixed	UF+3.9%		40.5			42.3
Brazilian export financing facility, maturing 2017, interest rates fixed	6.65	%	10.0			—
Limited recourse notes payable:
Senior notes, payable 2012, interest rates fixed	7.1	%	7.9			7.9
Senior notes, payable 2013-2018, interest rates fixed	7.1 – 7.3%		112.0			112.0
Other financing:
Non-recourse notes payable 2018, interest rates variable	0.3	%	368.7			368.7
Other			0.4			0.3
Total			729.1			714.7
Less: current portion			(13.2		)	(0.2		)
Net long-term portion			$	715.9		$	714.5

Schedule of Maturities of Long-term Debt [Table Text Block]

The weighted average interest rate for all long-term debt at December 31, 2011 and 2010 was approximately 5.5 percent and 5.7 percent. Required repayment of principal for long-term debt is as follows:

Dollar amounts in millions
Year ended December 31,
2012	$	13.2
2013	97.0
2014	7.0
2015	7.0
2016	7.0
2017 and after	597.9
Total	$	729.1