| Document and Entity Information | Nov. 15, 2019 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001590895 |
| Document Type | 8-K |
| Document Period End Date | Nov. 15, 2019 |
| Entity Registrant Name | Eldorado Resorts, Inc. |
| Entity Incorporation State Country Code | NV |
| Entity File Number | 001-36629 |
| Entity Tax Identification Number | 46-3657681 |
| Entity Address, Address Line One | 100 West Liberty Street |
| Entity Address, Address Line Two | Suite 1150 |
| Entity Address, City or Town | Reno |
| Entity Address, State or Province | NV |
| Entity Address, Postal Zip Code | 89501 |
| City Area Code | (775) |
| Local Phone Number | 328-0100 |
| Written Communications | true |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.00001 par value |
| Trading Symbol | ERI |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
