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IRT and STAR Merger - Summary of Unaudited Condensed Proforma Operating Information (Parenthetical) (Details) | Dec. 16, 2021 Employee
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STAR |
Business Acquisition Pro Forma Information [Line Items] |
Number of employees hired | 485

X
- Definition Number of persons employed by the Entity + References No definition available. + Details
Name: | dei_EntityNumberOfEmployees
Namespace Prefix: | dei_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Business acquisition pro forma information. + References No definition available. + Details
Name: | irt_BusinessAcquisitionProFormaInformationLineItems
Namespace Prefix: | irt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=irt_STARMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |