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Note 3 - Investments in Real Estate - Summary of Acquisitions (Details) | 3 Months Ended
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Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($)
Autumn Breeze | $ 58,637,000 | $ (0)
Gateway at Pinellas [Member] |  |
Autumn Breeze | 280 |
Autumn Breeze | $ 59,500 |

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- Definition Represents the number of units in real estate property acquired at a certain date. + References No definition available. + Details
Name: | irt_NumberOfUnitsInRealEstatePropertyAcquired
Namespace Prefix: | irt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- 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 + Details
Name: | us-gaap_PaymentsToAcquireRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=irt_GatewayAtPinellasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |