Supplemental Oil and Gas Disclosures - Additional Information (Details)  | 
12 Months Ended | 
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Dec. 31, 2015  | |
| Reserve Quantities [Line Items] | |
| Percentage non-operated non-producing reserves | 27.00% | 
| Percentage of proved undeveloped reserves | 12.00% | 
| Present value discounted percentage | 10.00% | 
| Minimum | |
| Reserve Quantities [Line Items] | |
| Expected time to evaluate properties, in years | 1 year | 
| Maximum | |
| Reserve Quantities [Line Items] | |
| Expected time to evaluate properties, in years | 5 years | 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Expected time to evaluate properties. No definition available. 
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- Definition Percentage of non operated proved developed non producing reserves. No definition available. 
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- Definition Percentage of non operated proved undeveloped reserves. No definition available. 
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- Definition Present value discounted percentage. No definition available. 
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- Details 
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