Asset Retirement Obligations (Tables)
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Dec. 31, 2012
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Asset Retirement Obligation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Change in Asset Retirement Obligation |
The following table summarizes the activity for the Company’s asset retirement obligations:
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- Details
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- Definition
Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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