XML 18 R29.htm IDEA: XBRL DOCUMENT v2.4.1.9

Related Party Transactions and Arrangements - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended
	May 07, 2013	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
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		$ 1,001us-gaap_AssetManagementFees1	$ 146us-gaap_AssetManagementFees1
Number of properties excluded from computation of base management fee	8irt_NumberOfProperties
Incentive fees incurred to advisor		211us-gaap_IncentiveFeeExpense	0us-gaap_IncentiveFeeExpense
Percentage of gross revenues from the property		4.00%irt_PropertyManagementAndLeasingFeesPercentageOfGrossRevenuesFromProperty
Property management and leasing fees		755irt_PaymentOfPropertyManagementAndLeasingFeesToPropertyManager	321irt_PaymentOfPropertyManagementAndLeasingFeesToPropertyManager
Incentive Fees
Related Party Transaction [Line Items]
Incentive fees payable to advisor		1,856us-gaap_AccruedLiabilitiesCurrentAndNoncurrent / irt_ExpenseTypeAxis = irt_IncentiveFeesMember		644us-gaap_AccruedLiabilitiesCurrentAndNoncurrent / irt_ExpenseTypeAxis = irt_IncentiveFeesMember
Other Liabilities
Related Party Transaction [Line Items]
Property management and leasing fees payable		$ 263irt_ManagementAndLeaseFeePayable / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember	$ 205irt_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
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
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

X

- Definition

Advisory Fee Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Annual Rate of Return

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Internal Rate of Return

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Management And Lease Fee Payable

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Management Fee Bases Per Annum

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of Properties

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Payment of property management and leasing fees to property manager.

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage Of Management Fee

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Property management and leasing fees percentage of gross revenues from the property.

+ References

No definition available.

+ Details

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Namespace Prefix:	irt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- 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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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

Name:	us-gaap_AssetManagementFees1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Data Type:	xbrli:stringItemType
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- Details

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Namespace Prefix:
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- Details

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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

X

- Details

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