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Long-Term Debt - Oasis Credit Facility (Details) - Revolving Credit Facility - Credit Facility - USD ($) |  | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
May 21, 2021 | Jun. 30, 2021 | Jun. 30, 2021 | Mar. 22, 2021 | Mar. 21, 2021 | Dec. 31, 2020
Oasis Credit Facility, Fourth Agreement |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Credit facility borrowing base | $ 550,000,000.0 |  |  |  |  |
Covenant terms, percentage of availability | 25.00% |  |  |  |  |
Covenant terms, maximum pro forma leverage ratio | 1.5 |  |  |  |  |
Covenant terms, maximum pro forma leverage ratio, subject to default and availability | 2.0 |  |  |  |  |
Covenant terms, minimum pro forma leverage ratio subject to default and availability | 1.5 |  |  |  |  |
Oasis Credit Facility, Fourth Agreement | 2021 Williston Acquisition |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Increase (decrease) in maximum borrowing capacity | $ 250,000,000.0 |  |  |  |  |
Oasis Credit Facility, Fourth Agreement | Primary Permian Basin Sale |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Increase (decrease) in maximum borrowing capacity | $ (100,000,000.0) |  |  |  |  |
Oasis Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Credit facility borrowing base |  | $ 400,000,000.0 | $ 400,000,000.0 | $ 500,000,000.0 | $ 575,000,000.0 |
Line of credit facility, current borrowing capacity |  |  |  | $ 450,000,000.0 | $ 575,000,000.0 |
Line of credit facility, maximum borrowing capacity, due to elected commitments |  | 450,000,000.0 | 450,000,000.0 |  |  |
Letters of credit outstanding |  | 1,300,000 | 1,300,000 |  |  |
Line of credit facility, remaining borrowing capacity |  | $ 398,700,000 | $ 398,700,000 |  |  |
Weighted average interest rate (percent) |  | 3.40% | 4.20% |  |  |
Oasis Credit Facility | Oasis Guarantors |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, gross |  | $ 0 | $ 0 |  |  | $ 260,000,000
Minimum | LIBOR | Oasis Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate |  |  |  | 0.25% | 1.00% |

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