Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
12 Months Ended
Dec. 31, 2020
Feb. 22, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Amendment Description Gulfport Energy Corporation (the “Company” or “Gulfport”) filed its Annual Report on Form 10-K for the year ended December 31, 2020 (the “Original 10-K Filing”) with the Securities and Exchange Commission on March 5, 2021. Pursuant to General Instruction G(3) to Form 10-K, the Company incorporated by reference the information required by Part III of Form 10-K from its definitive proxy statement that we expected to file with the Commission no later than 120 days after the end of the fiscal year covered by the Original 10-K Filing. Because the definitive 2020 Proxy Statement will not be filed with the Commission, the Company is filing this Amendment No. 1 to the Original 10-K Filing (this “Form 10-K/A”) to provide the additional information required by Part III of Form 10-K. Except for the addition of Part III information and the filing of new certifications by our principal executive officer and principal financial officer, this Form 10-K/A does not amend or otherwise update any other information in the Original 10-K Filing, and the Original 10-K Filing, as amended by this Form 10-K/A, continues to speak as of the date of the Original 10-K Filing. Accordingly, this Form 10-K/A should be read in conjunction with the Original 10-K Filing and with our filings with the SEC subsequent to the Original 10-K Filing.    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2020    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2020    
Current Fiscal Year End Date --12-31    
Entity File Number 001-19514    
Entity Registrant Name Gulfport Energy Corp    
Entity Central Index Key 0000874499    
Entity Tax Identification Number 73-1521290    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 3001 Quail Springs Parkway    
Entity Address, City or Town Oklahoma City    
Entity Address, State or Province OK    
Entity Address, Postal Zip Code 73134    
City Area Code (405)    
Local Phone Number 252-4600    
Title of 12(g) Security Common Stock    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 174,400,000
Entity Common Stock, Shares Outstanding   160,762,186  
ICFR Auditor Attestation Flag true