| Cover Page - USD ($) | 12 Months Ended | ||
| Dec. 31, 2021 | Mar. 03, 2022 | Jun. 30, 2021 | |
| Document Information [Line Items] | |||
| Document Type | 10-K/A | ||
| Document Annual Report | true | ||
| Document Period End Date | Dec. 31, 2021 | ||
| Document Transition Report | false | ||
| Entity File Number | 000-52596 | ||
| Entity Registrant Name | Ares Real Estate Income Trust Inc. | ||
| Entity Incorporation, State or Country Code | MD | ||
| Entity Tax Identification Number | 30-0309068 | ||
| Entity Address, Address Line One | 518 Seventeenth Street, 17th Floor | ||
| Entity Address, City or Town | Denver | ||
| Entity Address, State or Province | CO | ||
| Entity Address, Postal Zip Code | 80202 | ||
| City Area Code | 303 | ||
| Local Phone Number | 228-2200 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Entity Small Business | false | ||
| Entity Emerging Growth Company | false | ||
| ICFR Auditor Attestation Flag | false | ||
| Entity Shell Company | false | ||
| Entity Public Float | $ 0 | ||
| Auditor Name | KPMG LLP | ||
| Auditor Location | Denver, Colorado | ||
| Auditor Firm ID | 185 | ||
| Entity Central Index Key | 0001327978 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Document Fiscal Year Focus | 2021 | ||
| Document Fiscal Period Focus | FY | ||
| Amendment Flag | false | ||
| Class T | |||
| Document Information [Line Items] | |||
| Title of 12(g) Security | Class T Shares of Common Stock, $0.01 par value | ||
| Entity Common Stock, Shares Outstanding | 19,026,018 | ||
| Class S | |||
| Document Information [Line Items] | |||
| Title of 12(g) Security | Class S Shares of Common Stock, $0.01 par value | ||
| Entity Common Stock, Shares Outstanding | 40,489,159 | ||
| Class D | |||
| Document Information [Line Items] | |||
| Title of 12(g) Security | Class D Shares of Common Stock, $0.01 par value | ||
| Entity Common Stock, Shares Outstanding | 7,634,065 | ||
| Class I | |||
| Document Information [Line Items] | |||
| Title of 12(g) Security | Class I Shares of Common Stock, $0.01 par value | ||
| Entity Common Stock, Shares Outstanding | 59,285,778 | ||
| Class E | |||
| Document Information [Line Items] | |||
| Title of 12(g) Security | Class E Shares of Common Stock, $0.01 par value | ||
| Entity Common Stock, Shares Outstanding | 55,451,690 |
