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Oasis Midstream Partners LP (Details) - USD ($) |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Nov. 01, 2019 | Feb. 22, 2019 | Nov. 19, 2018 | Nov. 14, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Oasis Midstream Partners, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Consideration paid to acquire additional interest |  |  | $ 251,400,000 |  |  |  |
Cash payment to acquire additional interest |  |  | $ 172,400,000 |  |  |  |
Oasis Midstream Partners, LP | Affiliated Entity | 2019 Capital Expenditures Arrangement |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Estimate of reimbursable amounts from OMP |  | $ 80,000,000.0 |  |  |  | $ 73,000,000.0 |
Oasis Midstream Partners, LP | Affiliated Entity | Assignment of Midstream Assets in Delaware Basin |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Estimate of reimbursable amounts from OMP | $ 24,900,000 |  |  |  |  |  |
Purchase and sale rights expiration period | 2 years |  |  |  |  |  |
Oasis Midstream Partners, LP | Partnership Interest |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Proceeds from issuance of shares in IPO |  |  |  | $ 44,500,000 |  |  |
Oasis Midstream Partners, LP | Common Units | Partnership Interest |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Common units sold in IPO (in shares) |  |  |  | 2,300,000 |  |  |
Shares issued, price per share, net of underwriting discounts and commissions (in usd per share) |  |  |  | $ 20.00 |  |  |
Underwriters' option | Oasis Midstream Partners, LP | Common Units | Partnership Interest |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Common units sold in IPO (in shares) |  |  |  | 300,000 |  |  |
Oasis Midstream Partners, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Ownership interest (percent) |  |  |  |  | 67.50% |  |
Oasis Midstream Partner, GP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Ownership interest (percent) |  |  |  |  | 92.00% |  |
Bobcat DevCo | Oasis Midstream Partners, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Limited partner interest in OMP (percent) |  |  | 25.00% |  |  |  |
Bobcat DevCo | OMS Holdings LLC (“OMS”) |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Ownership interest (percent) |  |  | 75.00% |  | 64.70% | 64.70% | 75.00%
Beartooth DevCo | Oasis Midstream Partners, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Limited partner interest in OMP (percent) |  |  |  |  | 70.00% |  |
Beartooth DevCo | OMS Holdings LLC (“OMS”) |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Ownership interest (percent) |  |  |  |  | 30.00% |  |
Limited partner | Oasis Midstream Partners, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Limited partner units issued to acquire additional interest in affiliates (in shares) |  |  | 3,950,000 |  |  |  |
Bobcat DevCo | Bobcat DevCo | Oasis Midstream Partners, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Additional interest acquired (percent) |  |  | 15.00% |  |  |  |
Beartooth DevCo | Beartooth DevCo | Oasis Midstream Partners, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Additional interest acquired (percent) |  |  | 30.00% |  |  |  |

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