| Cover | Aug. 28, 2023 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Aug. 28, 2023 |
| Entity Registrant Name | APARTMENT INCOME REIT CORP. |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 001-39686 |
| Entity Tax Identification Number | 84-1299717 |
| Entity Address, Address Line One | 4582 South Ulster Street |
| Entity Address, Address Line Two | Suite 1700 |
| Entity Address, City or Town | Denver |
| Entity Address, State or Province | CO |
| Entity Address, Postal Zip Code | 80237 |
| City Area Code | 303 |
| Local Phone Number | 757-8101 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Apartment Income REIT Corp. Class A Common Stock |
| Trading Symbol | AIRC |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001820877 |
| Amendment Flag | false |
| Entity Incorporation, State or Country Code | MD |
| Apartment Income Reit LP | |
| Document Information [Line Items] | |
| Entity Registrant Name | APARTMENT INCOME REIT, L.P. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 000-24497 |
| Entity Tax Identification Number | 84-1275621 |
| Entity Central Index Key | 0000926660 |
| Amendment Flag | false |
| Entity Incorporation, State or Country Code | DE |
