| Document and Entity Information | Nov. 04, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Central Index Key | 0000943861 |
| Document Period End Date | Nov. 4, 2021 |
| Entity Registrant Name | GOODRICH PETROLEUM CORP |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-12719 |
| Entity Tax Identification Number | 76-0466193 |
| Entity Address, Address Line One | 801 Louisiana St. |
| Entity Address, Address Line Two | Suite 700 |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77002 |
| City Area Code | 713 |
| Local Phone Number | 780-9494 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Trading Symbol | GDP |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | false |
