Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock.

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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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FRESH START ACCOUNTING (Reorganization Adjustment to Common Stock, Additional Paid in Capital and Common Stock Held in Reserve) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	May 17, 2021	Dec. 31, 2020
Reorganization, Chapter 11 [Line Items]
Common stock	$ 2	$ 2	$ 1,607
Additional paid-in capital	692,521	693,774	$ 4,213,752
Total New Common Stock held in reserve	$ (30,216)	(54,109)
Reorganization Chapter11 Plan Effect Adjustment, Issuance of common stock to settle General Unsecured Claims against Gulfport Parent
Reorganization, Chapter 11 [Line Items]
Common stock		0
Additional paid-in capital		27,751
Reorganization Chapter11 Plan Effect Adjustment, Issuance of common stock to settle General Unsecured Claims against Gulfport Subsidiaries
Reorganization, Chapter 11 [Line Items]
Common stock		2
Additional paid-in capital		666,022
Reorganization Chapter11 Plan Effect Adjustment, Common Stock Reserved For Settlement Of Claims Post Emergence Date (Par Value)
Reorganization, Chapter 11 [Line Items]
Common stock		0
Reorganization Chapter11 Plan Effect Adjustment, Net Change To Common Stock
Reorganization, Chapter 11 [Line Items]
Common stock		2
Extinguishment of Predecessor stock-based compensation
Reorganization, Chapter 11 [Line Items]
Additional paid-in capital		4,419
Reorganization Chapter11 Plan Effect Adjustment Extinguishment of Predecessor paid in capital
Reorganization, Chapter 11 [Line Items]
Additional paid-in capital		(4,220,256)
Reorganization Adjustments
Reorganization, Chapter 11 [Line Items]
Common stock		(1,609)
Additional paid-in capital		(3,522,064)
Total New Common Stock held in reserve		(54,109)
Reorganization Chapter11 Plan Effect Adjustment, Shares held in reserve to settle Allowed Claims against Gulfport Parent
Reorganization, Chapter 11 [Line Items]
Total New Common Stock held in reserve		(23,894)
Reorganization Chapter11 Plan Effect Adjustment, Shares held in reserve to settle Allowed Claims against Gulfport Subsidiary
Reorganization, Chapter 11 [Line Items]
Total New Common Stock held in reserve		$ (30,215)