XML 101 R38.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Dividends Declared (Detail) (USD $) | 12 Months Ended | 0 Months Ended
--- | --- | ---
Dec. 31, 2014 | Jan. 19, 2015 | Jul. 10, 2014 | Oct. 16, 2014
July 2013 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Aug. 05, 2013 |  |  |
Payment Date | Aug. 15, 2013 |  |  |
Dividend Declared Per Share | $ 0.05333 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodSevenMember |  |  |
August 2013 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Aug. 30, 2013 |  |  |
Payment Date | Sep. 13, 2013 |  |  |
Dividend Declared Per Share | $ 0.05333 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodEightMember |  |  |
September 2013 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Sep. 30, 2013 |  |  |
Payment Date | Oct. 15, 2013 |  |  |
Dividend Declared Per Share | $ 0.05333 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodNineMember |  |  |
October 2013 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Oct. 31, 2013 |  |  |
Payment Date | Nov. 15, 2013 |  |  |
Dividend Declared Per Share | $ 0.05333 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodFourMember |  |  |
November 2013 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Nov. 29, 2013 |  |  |
Payment Date | Dec. 16, 2013 |  |  |
Dividend Declared Per Share | $ 0.05333 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodFiveMember |  |  |
December 2013 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Dec. 31, 2013 |  |  |
Payment Date | Jan. 15, 2014 |  |  |
Dividend Declared Per Share | $ 0.05333 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodSixMember |  |  |
January 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Jan. 31, 2014 |  |  |
Payment Date | Feb. 17, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodOneMember |  |  |
February 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Feb. 28, 2014 |  |  |
Payment Date | Mar. 17, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwoMember |  |  |
March 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Mar. 31, 2014 |  |  |
Payment Date | Apr. 15, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodThreeMember |  |  |
April 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Apr. 30, 2014 |  |  |
Payment Date | May 15, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTenMember |  |  |
May 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | May 30, 2014 |  |  |
Payment Date | Jun. 16, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodElevenMember |  |  |
June 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Jun. 30, 2014 |  |  |
Payment Date | Jul. 15, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwelveMember |  |  |
July 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Jul. 31, 2014 |  |  |
Payment Date | Aug. 15, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodThirteenMember |  |  |
August 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Aug. 29, 2014 |  |  |
Payment Date | Sep. 15, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodFourteenMember |  |  |
September 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Sep. 30, 2014 |  |  |
Payment Date | Oct. 15, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodFifteenMember |  |  |
October 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Oct. 31, 2014 |  |  |
Payment Date | Nov. 17, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodSixteenMember |  |  |
November 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Nov. 28, 2014 |  |  |
Payment Date | Dec. 15, 2014 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodSeventeenMember |  |  |
December 2014 |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date | Dec. 31, 2014 |  |  |
Payment Date | Jan. 15, 2015 |  |  |
Dividend Declared Per Share | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodEighteenMember |  |  |
January 2015 | Subsequent event |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  | Jan. 30, 2015 |  |
Payment Date |  | Feb. 17, 2015 |  |
Dividend Declared Per Share |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodNineteenMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
January 2015 | Subsequent event | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  | Jan. 30, 2015 |  |
Payment Date |  | Feb. 17, 2015 |  |
Dividend Declared Per Share |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodNineteenMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
February 2015 | Subsequent event |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  | Feb. 27, 2015 |  |
Payment Date |  | Mar. 16, 2015 |  |
Dividend Declared Per Share |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentyMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
February 2015 | Subsequent event | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  | Feb. 27, 2015 |  |
Payment Date |  | Mar. 16, 2015 |  |
Dividend Declared Per Share |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentyMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
March 2015 | Subsequent event |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  | Mar. 31, 2015 |  |
Payment Date |  | Apr. 15, 2015 |  |
Dividend Declared Per Share |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentyOneMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
March 2015 | Subsequent event | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  | Mar. 31, 2015 |  |
Payment Date |  | Apr. 15, 2015 |  |
Dividend Declared Per Share |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentyOneMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
July 2014 | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  |  | Jul. 31, 2014 |
Payment Date |  |  | Aug. 15, 2014 |
Dividend Declared Per Share |  |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentyTwoMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
August 2014 | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  |  | Aug. 29, 2014 |
Payment Date |  |  | Sep. 15, 2014 |
Dividend Declared Per Share |  |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentyThreeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
September 2014 | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  |  | Sep. 30, 2014 |
Payment Date |  |  | Oct. 15, 2014 |
Dividend Declared Per Share |  |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentyFourMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
October 2014 | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  |  |  | Oct. 31, 2014
Payment Date |  |  |  | Nov. 17, 2014
Dividend Declared Per Share |  |  |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentyFiveMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
November 2014 | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  |  |  | Nov. 28, 2014
Payment Date |  |  |  | Dec. 15, 2014
Dividend Declared Per Share |  |  |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentySixMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
December 2014 | Noncontrolling Interest |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Record Date |  |  |  | Dec. 31, 2014
Payment Date |  |  |  | Jan. 15, 2015
Dividend Declared Per Share |  |  |  | $ 0.06 us-gaap_CommonStockDividendsPerShareDeclared / irt_PeriodTypeAxis = irt_PeriodTwentySevenMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodElevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodFifteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodFourteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodNineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodSevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodSixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodThirteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwelveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwentyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwentySevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwentySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | irt_PeriodTypeAxis=irt_PeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |