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Asset Retirement Obligations - Schedule of Accretion Discount Rates on Interest Method (Details)
1 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Abstract]            
Accretion discount rates on interest method 12.09% 11.50% 14.00% 11.50% 11.50% 10.48%