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Investments in Non-Consolidated Affiliates (Details Textual) (USD $) In Millions, unless otherwise specified | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 30, 2009 | Mar. 31, 2009 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Investments in Non-Consolidated Affiliates (Textual) [Abstract] |  |  |  |  |
Percentage of ownership interest | 35.50% |  |  |  |
Impairment charge |  | $ 81.7 |  |  |
Dividends from joint ventures |  |  | 0 | 0 | 0
Equity Investment in SIMCO Consortium and Harwat [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Impairment charge |  | 6.5 |  |  |
Equity Investment in PIGAP II and El Furrial [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Impairment charge |  | $ 90.1 |  |  |

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