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Shareholder Equity and Non-Controlling Interest - Additional Information (Detail) - Trade Street Residential, Inc. $ / shares in Units, $ in Thousands |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 17, 2015 USD ($) $ / shares shares | Sep. 04, 2015 Dividend $ / shares | Sep. 30, 2015 USD ($) shares | Jul. 01, 2015
Class Of Stock [Line Items] |  |  |  |
Merger completion date |  |  | Sep. 17, 2015 |
Common stock shares converted into right to receive cash | $ / shares | $ 3.80 |  |  |
Common stock shares converted into right to receive shares of IRT | 0.4108 |  |  |
Shares issued to acquire entity | 15,110,994 |  |  |
Monthly dividend division on prorated basis | $ / shares |  | $ 0.06 |  |
Number of prorated dividends | Dividend |  | 2 |  |
OP Units outstanding |  |  | 3,154,935 |
OP Units redemption value | $ |  |  | $ 22,747 |
Limited Partner |  |  |  |
Class Of Stock [Line Items] |  |  |  |
Operating partnership units exchanged in merger | 1,925,419 |  |  |
OP Units value, exchanged in merger | $ | $ 13,998 |  |  |
July 2015 |  |  |  |
Class Of Stock [Line Items] |  |  |  |
Dividend declared date |  |  |  | 2015-07
August 2015 |  |  |  |
Class Of Stock [Line Items] |  |  |  |
Dividend declared date |  |  |  | 2015-08
September 2015 |  |  |  |
Class Of Stock [Line Items] |  |  |  |
Dividend declared date |  |  |  | 2015-09

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