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Note 3 - Investments in Real Estate (Details Textual) $ in Thousands		3 Months Ended	6 Months Ended
	Jul. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)
Number of Properties, Multifamily Apartments			113
Number of Consolidated Properties, Multifamily Apartments			1
Number of Units in Real Estate Property			33,175
Payments to Acquire Real Estate			$ 58,637	$ (0)
Impairment of Real Estate		$ 20,928
Ascend at Oakpointe [Member] | Subsequent Event [Member]
Number of Units in Real Estate Property Acquired	240
Payments to Acquire Real Estate	$ 60,250

X

- Definition

The number of consolidated properties classified as multifamily apartments.

+ References

No definition available.

+ Details

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X

- Definition

The number of properties classified as multifamily apartments.

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	xbrli:pureItemType
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X

- Definition

Represents the number of units in real estate property acquired at a certain date.

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	xbrli:integerItemType
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X

- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-2

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Period Type:	duration

X

- Definition

The number of units in a real estate property owned as of the balance sheet date.

+ References

No definition available.

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X

- Definition

The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

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