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Curtailment of operations Ravenswood and Hawesville (Tables) | 12 Months Ended
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Dec. 31, 2011
Curtailment of operations - Ravenswood and Hawesville [Abstract] |
Component of curtailment cost | The components of the curtailment costs are as follows:
|  | December 31, |
|  | 2011 |  |  | 2010 |  |  | 2009 |
Ongoing site costs |  | $ | 12,313 |  |  | $ | 14,332 |  |  | $ | 18,233 |
Severance/employee-related cost |  |  | 1,038 |  |  |  | 455 |  |  |  | 22,049 |
OPEB plan curtailment adjustment |  |  | (18,304 | ) |  |  | (56,728 | ) |  |  | (14,830 | )
Pension plan curtailment adjustment |  |  | 1,147 |  |  |  | 4,555 |  |  |  | 2,478 |
Alumina contract – amendments and spot sales net losses |  |  | - |  |  |  | - |  |  |  | 7,448 |
Power/other contract termination costs |  |  | - |  |  |  | - |  |  |  | 6,332 |
Total curtailment expense (benefit) |  | $ | (3,806 | ) |  | $ | (37,386 | ) |  | $ | 41,710 |
Cash curtailment expenditures
|  | December 31, |
|  | 2011 |  |  | 2010 |  |  | 2009 |
Curtailment of operations at Ravenswood and Hawesville |  | $ | 13,502 |  |  | $ | 10,078 |  |  | $ | 22,300 |
Ongoing idling costs at Ravenswood |  |  | 9,464 |  |  |  | 7,351 |  |  |  | 9,300 |
Contract termination and amendment costs |  |  | - |  |  |  | - |  |  |  | 15,100 |
Total |  | $ | 22,966 |  |  | $ | 17,429 |  |  | $ | 46,700 |

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