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CHAPTER 11 EMERGENCE (Details) - USD ($) | May 17, 2021 | Sep. 30, 2021
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Debt Instrument [Line Items] |  |
Debtor-in-possession financing, amount arranged |  | $ 105,000,000
Holder Of A Class 4A Claim greater Than The Convenience Claim Threshold |  |
Debt Instrument [Line Items] |  |
Cash received by holders of an allowed general unsecured claim | $ 10,000,000 |
Percentage of the equity method investment received | 100.00% |
Hold Of A Convenience Class Claim |  |
Debt Instrument [Line Items] |  |
Cash distribution pool | $ 3,000,000 |
Increase in additional cash distribution pool | 2,000,000 |
Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Debtor-in-possession financing, amount arranged | 580,000,000 |
Exit Facility | Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Debtor-in-possession financing, amount arranged | 1,500,000,000 |
First-Out Term Loan | Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Debtor-in-possession financing, amount arranged | 180,000,000 |
8.000% senior unsecured notes due 2026 | Senior Notes |  |
Debt Instrument [Line Items] |  |
Debtor-in-possession financing, amount arranged | $ 550,000,000 |
Interest rate | 8.00% |
Common Stock |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 19,845,780 |
Common Stock | Holder Of An Allowed Notes Claim |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 19,714,204 |
Common Stock | Disputed Claims Reserve |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 1,678,755 |
Common Stock | Holder Of A Class 4A Claim greater Than The Convenience Claim Threshold |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 119,679 |
Common Stock | Holder Of A Class 4B Claim Greater Than The Convenience Claim Threshold |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 11,897 |
Common Stock | Gulfport Employees And Non-Employee Directors |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 2,828,123 |
Preferred Stock |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 55,000 |
Preferred Stock | Holder Of An Allowed Notes Claim |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 54,967 |
Preferred Stock | Holder Of A Class 4B Claim Greater Than The Convenience Claim Threshold |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 33 |
Preferred Stock | Holders Of Claims Against Predecessor Subsidiaries |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 50,000 |
Plan of reorganization, price (in USD per share) | $ 1,000 |
Plan of reorganization, proceeds from issuance of shares | $ 50,000,000 |
Preferred Stock | Back Stop Commitment Counterparties |  |
Debt Instrument [Line Items] |  |
Plan of reorganization, number of shares issued (in shares) | 5,000 |

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