CHAPTER 11 EMERGENCE (Details) - USD ($)	May 17, 2021	Sep. 30, 2021
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