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v2.4.1.9

Related Party Transactions and Arrangements - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 0 Months Ended | 12 Months Ended |
--- | --- | --- | ---
May 07, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | May 07, 2013 Property
Related Party Transaction [Line Items] |  |  |  |  |
Quarterly management fee as percentage of average real estate assets | 0.1875%irt_ManagementFeeBasesPerAnnum |  |  |  |
Quarterly management fee payment rate as percentage of average real estate assets | 0.1875%irt_PercentageOfManagementFee |  |  |  |
Asset management fees earned |  | $ 1,582 us-gaap_AssetManagementFees1 | $ 128 us-gaap_AssetManagementFees1 | $ 240 us-gaap_AssetManagementFees1 |
Number of properties excluded from computation of base management fee | 8 irt_NumberOfProperties |  |  |  | 8 irt_NumberOfProperties
Incentive fees incurred to advisor |  | 154 us-gaap_IncentiveFeeExpense | 144 us-gaap_IncentiveFeeExpense | 0 us-gaap_IncentiveFeeExpense |
Percentage of gross revenues from the property |  |  | 4.00%irt_PropertyManagementAndLeasingFeesPercentageOfGrossRevenuesFromProperty |  |
Property management and leasing fees |  | 1,759 irt_PaymentOfPropertyManagementAndLeasingFeesToPropertyManager | 785 irt_PaymentOfPropertyManagementAndLeasingFeesToPropertyManager | 655 irt_PaymentOfPropertyManagementAndLeasingFeesToPropertyManager |
Incentive Fees |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Incentive fees payable to advisor |  | 644 us-gaap_AccruedLiabilitiesCurrentAndNoncurrent / irt_ExpenseTypeAxis = irt_IncentiveFeesMember | 107 us-gaap_AccruedLiabilitiesCurrentAndNoncurrent / irt_ExpenseTypeAxis = irt_IncentiveFeesMember |  |
Other Liabilities |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Property management and leasing fees payable |  | $ 205 irt_ManagementAndLeaseFeePayable / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember | $ 83 irt_ManagementAndLeaseFeePayable / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember |  |
if pre-incentive fee Core FFO does not exceed hurdle rate |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Advisor incentive fee | 0.00%irt_AdvisoryFeePercentage / us-gaap_StatementScenarioAxis = irt_ScenarioThreeMember |  |  |  | 0.00%irt_AdvisoryFeePercentage / us-gaap_StatementScenarioAxis = irt_ScenarioThreeMember
if pre-incentive fee Core FFO does not exceed hurdle rate | Maximum |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Cumulative gross amount of equity capital, hurdle rate | 1.75%irt_InternalRateOfReturn / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementScenarioAxis = irt_ScenarioThreeMember |  |  |  |
Cumulative gross amount of equity capital, annual hurdle rate | 7.00%irt_AnnualRateOfReturn / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementScenarioAxis = irt_ScenarioThreeMember |  |  |  |
if pre-incentive fee Core FFO exceeds hurdle rate |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Advisor incentive fee | 20.00%irt_AdvisoryFeePercentage / us-gaap_StatementScenarioAxis = irt_ScenarioFourMember |  |  |  | 20.00%irt_AdvisoryFeePercentage / us-gaap_StatementScenarioAxis = irt_ScenarioFourMember
if pre-incentive fee Core FFO exceeds hurdle rate | Minimum |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Cumulative gross amount of equity capital, hurdle rate | 1.75%irt_InternalRateOfReturn / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementScenarioAxis = irt_ScenarioFourMember |  |  |  |
Cumulative gross amount of equity capital, annual hurdle rate | 7.00%irt_AnnualRateOfReturn / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementScenarioAxis = irt_ScenarioFourMember |  |  |  |

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- Definition Management Fee Bases Per Annum + References No definition available. + Details
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- Definition Percentage Of Management Fee + References No definition available. + Details
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- Definition Property management and leasing fees percentage of gross revenues from the property. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 + Details
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- Definition Amount of fixed fee revenue for the management of an investment fund portfolio. Excludes investment advisory, distribution and servicing, and performance fees. + References No definition available. + Details
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- Definition Amount of expense for incentive rights held by the managing member or general partner, of limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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- Details
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- Details
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