Leases - Schedule of Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands |
Sep. 30, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Operating Lease Liabilities, Payments Due After Adoption of 842 [Abstract] | ||
| 2019 | $ 6,428 | |
| 2020 | 8,713 | |
| 2021 | 2,855 | |
| 2022 | 425 | |
| Total | 18,421 | |
| Less: Imputed Interest | (408) | |
| Present value of lease liabilities | 18,013 | |
| Operating lease liability, current | 14,151 | $ 0 |
| Operating lease liability, noncurrent | $ 3,862 | 0 |
| Drilling Rigs | ||
| Operating Leases, Future Contractual Payments Before Adoption of 842 | ||
| 2019 | 43,036 | |
| 2020 | 4,124 | |
| 2021 | 0 | |
| 2022 | 0 | |
| Total lease payments | 47,160 | |
| Office Leases | ||
| Operating Leases, Future Contractual Payments Before Adoption of 842 | ||
| 2019 | 3,057 | |
| 2020 | 2,830 | |
| 2021 | 2,761 | |
| 2022 | 404 | |
| Total lease payments | $ 9,052 |