| Supplemental Oil and Gas Disclosures - Additional Information (Details) | 12 Months Ended | 
|---|---|
| Dec. 31, 2018 | |
| Capitalized Costs Oil And Gas Producing Activities Net [Abstract] | |
| Percentage non-operated non-producing reserves | 13.00% | 
| Present value discounted percentage | 10.00% | 
| X | ||||||||||
| 
- References No definition available. 
 | 
| X | ||||||||||
| 
- Definition Percentage of non operated proved developed non producing reserves. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Present value discounted percentage. No definition available. 
 |