| Document and Entity Information | Jun. 09, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jun. 9, 2020 |
| Entity Registrant Name | ERA GROUP INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 1-35701 |
| Entity Tax Identification Number | 72-1455213 |
| Entity Address, Address Line One | 945 Bunker Hill Rd., Suite 650 |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77024 |
| City Area Code | 713 |
| Local Phone Number | 369-4700 |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001525221 |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Trading Symbol | ERA |
| Security Exchange Name | NYSE |
