Asset Retirement Obligations (Tables) |
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||
| Asset Retirement Obligations [Abstract] | |||||||||||||||||||||||||||||||||||||||||
| Schedule of Asset Retirement Obligations |
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- References No definition available.
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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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