| Cover | Sep. 30, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Sep. 30, 2024 |
| Entity Registrant Name | Cohen & Steers Income Opportunities REIT, Inc. |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 333-269416 |
| Entity Tax Identification Number | 88-3609651 |
| Entity Address, Address Line One | 1166 Avenue of the Americas |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10036 |
| City Area Code | (212) |
| Local Phone Number | 832-3232(Registrant’s telephone number, including area code) |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | true |
| Amendment Flag | false |
| Entity Central Index Key | 0001939433 |
