XML 99 R27.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Investments in Real Estate - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 0 Months Ended | 12 Months Ended | 0 Months Ended
--- | --- | --- | ---
Sep. 15, 2014 | Aug. 28, 2014 | Dec. 31, 2014 | Nov. 22, 2013 | Sep. 19, 2013 | Dec. 30, 2014 | Dec. 16, 2014 | Dec. 08, 2014 | Nov. 24, 2014 | Sep. 05, 2014 | Jun. 04, 2014 | May 07, 2014 | Mar. 31, 2014 | Feb. 28, 2014 | Jan. 31, 2014
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of multifamily property owned |  |  | 30 us-gaap_NumberOfRealEstateProperties |  |  |  |  |  |  |  |  |  |  |  |
Loans payable on real estate |  |  | 186,512 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt |  |  |  |  |  |  |  |  |  |  |  |
Fair value of properties acquired |  |  | 496,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment |  |  |  |  |  |  |  |  |  |  |  |
Investments in real estate |  |  | 190,761 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities |  |  |  |  |  |  |  |  |  |  |  |
Walnut Hill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  | 27,900 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = irt_WalnutHillMember |  |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate | 3.40%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = irt_WalnutHillMember |  | 3.40%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = irt_WalnutHillMember |  |  |  |  |  |  |  |  |  |  |  |
Maturity date |  |  | Oct. 01, 2021 |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest | Walnut Hill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of limited units issued |  | 137,361 us-gaap_LimitedPartnersCapitalAccountUnitsIssued / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = irt_WalnutHillMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |  |  |  |  |  |  |  |  |
Limited units issued value |  | 1,377 us-gaap_LimitedPartnersCapitalAccount / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = irt_WalnutHillMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |  |  |  |  |  |  |  |  |
The Crossings at Ridgewood Apartments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  | 23,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_AcquisitionsOneMember |  |  |  |  |  |  |  |  |  |  |
Berkshire Square Apartments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  | 13,250 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_BerkshireSquareApartmentsMember |  |  |  |  |  |  |  |  |  |
Iron Rock Ranch |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  | 35,250 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_IronRockRanchMember |  |  |  |  |  |  |  |  |
Iron Rock Ranch | Noncontrolling Interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of limited units issued |  |  |  |  |  | 918,098 us-gaap_LimitedPartnersCapitalAccountUnitsIssued / us-gaap_RealEstatePropertiesAxis = irt_IronRockRanchMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |  |  |  |  |
Limited units issued value |  |  |  |  |  | 8,550 us-gaap_LimitedPartnersCapitalAccount / us-gaap_RealEstatePropertiesAxis = irt_IronRockRanchMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |  |  |  |  |
Stonebridge At The Ranch |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  |  | 31,580 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_StonebridgeAtTheRanchMember |  |  |  |  |  |  |  |
Prospect Park Brookside Jamestown Meadows And Oxmoor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of multifamily property owned |  |  |  |  |  |  |  | 5 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = irt_ProspectParkBrooksideJamestownMeadowsAndOxmoorMember |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  |  |  | 162,350 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_ProspectParkBrooksideJamestownMeadowsAndOxmoorMember |  |  |  |  |  |  |
Bennington Pond |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  |  |  |  | 17,500 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_BenningtonPondMember |  |  |  |  |  |
Bennington Pond | Noncontrolling Interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of limited units issued |  |  |  |  |  |  |  |  | 4,929 us-gaap_LimitedPartnersCapitalAccountUnitsIssued / us-gaap_RealEstatePropertiesAxis = irt_BenningtonPondMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |  |
Limited units issued value |  |  |  |  |  |  |  |  | 48 us-gaap_LimitedPartnersCapitalAccount / us-gaap_RealEstatePropertiesAxis = irt_BenningtonPondMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |  |
Stonebridge Crossing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property | 29,800 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_StonebridgeCrossingMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lenoxplace At Garner Station |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  |  |  |  |  | 24,250 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_LenoxplaceAtGarnerStationMember |  |  |  |  |
Arbors at the Reservoir |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  |  |  |  |  |  | 20,250 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_ArborsAtTheReservoirMember |  |  |  |
Carrington |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  |  |  |  |  |  |  | 21,500 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_CarringtonMember |  |  |
Carrington | Noncontrolling Interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of limited units issued |  |  |  |  |  |  |  |  |  |  |  | 222,062 us-gaap_LimitedPartnersCapitalAccountUnitsIssued / us-gaap_RealEstatePropertiesAxis = irt_CarringtonMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |
Limited units issued value |  |  |  |  |  |  |  |  |  |  |  | 1,986 us-gaap_LimitedPartnersCapitalAccount / us-gaap_RealEstatePropertiesAxis = irt_CarringtonMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |
King's Landing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  |  |  |  |  |  |  |  | 32,700 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_KingsLandingMember |  |
Loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  | 21,200 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt / us-gaap_RealEstatePropertiesAxis = irt_KingsLandingMember |  |
Effective interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 4.00%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_RealEstatePropertiesAxis = irt_KingsLandingMember |  |
OKC Portfolio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of multifamily property owned |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = irt_OKCPortfolioMember |
Purchased price of a property |  |  |  |  |  |  |  |  |  |  |  |  |  | 65,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_OKCPortfolioMember |
Loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  | 45,763 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt / us-gaap_RealEstatePropertiesAxis = irt_OKCPortfolioMember |
Effective interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.60%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_RealEstatePropertiesAxis = irt_OKCPortfolioMember |
Maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  | Apr. 01, 2016 |
Fair value of properties acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 70,431 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_RealEstatePropertiesAxis = irt_OKCPortfolioMember |
Investments in real estate |  |  |  |  |  |  |  |  |  |  |  |  |  | 48,312 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / us-gaap_RealEstatePropertiesAxis = irt_OKCPortfolioMember |
Gain (loss) on assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,882 us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount / us-gaap_RealEstatePropertiesAxis = irt_OKCPortfolioMember |
Reserve at Eagle Ridge |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased price of a property |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 29,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstatePropertiesAxis = irt_ReserveAtEagleRidgeMember

X
- Definition In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6571-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6527-128477 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6396-128476 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6387-128476 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6393-128476 + Details
Name: | us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of liabilities assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of the limited partners' ownership interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F + Details
Name: | us-gaap_LimitedPartnersCapitalAccount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of limited partner units issued. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F + Details
Name: | us-gaap_LimitedPartnersCapitalAccountUnitsIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
Name: | us-gaap_MortgageLoanOnRealEstateFinalMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
Name: | us-gaap_MortgageLoansOnRealEstateInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=irt_WalnutHillMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_AcquisitionsOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_ArborsAtTheReservoirMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_BenningtonPondMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_BerkshireSquareApartmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_CarringtonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_IronRockRanchMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_KingsLandingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_LenoxplaceAtGarnerStationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_OKCPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_ProspectParkBrooksideJamestownMeadowsAndOxmoorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_ReserveAtEagleRidgeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_StonebridgeAtTheRanchMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=irt_StonebridgeCrossingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |