Long-term Debt (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Notes and Loans Payable [Abstract]
Notes payable	$ 7.9	$ 0
Other	0.4	0.3
Total	729.1	714.7
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	13.2	0.2
Net long-term portion	715.9	714.5
Senior Secured Notes Maturing 2017 [Member]
Notes and Loans Payable [Abstract]
Notes payable	189.6	183.5
Debt Instrument, Interest Rate, Stated Percentage	13.00%
Total	281.0
Chilian Term Credit Facility Maturing 2019 [Member]
Notes and Loans Payable [Abstract]
Notes payable	40.5	42.3
Debt Instrument, Interest Rate, Stated Percentage	3.90%
Brazilian Term Credit Facility Maturing 2017 [Member]
Notes and Loans Payable [Abstract]
Notes payable	10.0	0
Debt Instrument, Interest Rate, Stated Percentage	6.65%
Senior Notes Payable 2012 [Member]
Notes and Loans Payable [Abstract]
Notes payable	7.9	7.9
Debt Instrument, Interest Rate, Stated Percentage	0.00%
Senior Notes Payable 2013 Thru 2018 [Member]
Notes and Loans Payable [Abstract]
Notes payable	112.0	112.0
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	7.10%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	7.30%
Non Recourse Notes Payable 2018 [Member]
Notes and Loans Payable [Abstract]
Notes payable	$ 368.7	$ 368.7
Debt Instrument, Interest Rate, Stated Percentage	0.00%

Interest rate stated in the contractual debt agreement.

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Amount of long-term debt maturing within the next twelve months following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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