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IRT and STAR Merger - Summary of Unaudited Condensed Proforma Operating Information (Parenthetical) (Details)	Dec. 16, 2021 Employee
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: