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Liabilities for Dispositions and Discontinued Operations (Tables) | 9 Months Ended
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Sep. 30, 2012
Liabilities of Disposal Group, Including Discontinued Operation [Abstract] |
Schedule of Change in Environmental Loss Contingencies [Table Text Block] | An analysis of the liabilities for dispositions and discontinued operations follows:
| September 30, |  | December 31, |
| 2012 |  | 2011 |
Balance, beginning of period | $ | 90,824 |  |  | $ | 93,160 |  |
Expenditures charged to liabilities | (6,867 | ) |  | (9,209 | ) |
Increase to liabilities | 496 |  |  | 6,873 |  |
Balance, end of period | 84,453 |  |  | 90,824 |  |
Less: Current portion | (8,929 | ) |  | (9,931 | ) |
Non-current portion | $ | 75,524 |  |  | $ | 80,893 |  |

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- Definition Tabular disclosure of the changes in the carrying amount of the liability for environmental loss contingencies, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations and property dispositions. + References No definition available. + Details
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