| Document and Entity Information | May 03, 2021 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | May 3, 2021 |
| Entity Registrant Name | OMEGA HEALTHCARE INVESTORS, INC. |
| Entity Central Index Key | 0000888491 |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 1-11316 |
| Entity Tax Identification Number | 38-3041398 |
| Amendment Flag | false |
| Entity Emerging Growth Company | false |
| Entity Address, Address Line One | 303 International Circle, |
| Entity Address, Address Line Two | Suite 200 |
| Entity Address, City or Town | Hunt Valley |
| Entity Address, State or Province | MD |
| Entity Address, Postal Zip Code | 21030 |
| City Area Code | 410 |
| Local Phone Number | 427-1700 |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | OHI |
| Security Exchange Name | NYSE |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
