Accounts Receivable, Accounts Payable and Accrued Expenses - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands |
Sep. 30, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
| Accrued oil and gas sales receivable, net | $ 71,732 | $ 66,997 |
| Joint interest billings, net | 65,444 | 31,658 |
| Other | 4,136 | 1,968 |
| Accounts receivable, net | $ 141,312 | $ 100,623 |