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Summary of Revenue And Net Income (Loss) for Properties Acquired (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2017
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items] |  |
Total revenue | $ 966 | $ 1,235
Net income (loss) allocable to common shares | 226 | 300
Lakes of Northdale |  |
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items] |  |
Total revenue | 771 | 1,040
Net income (loss) allocable to common shares | 150 | 224
Haverford Place |  |
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items] |  |
Total revenue | 185 | 185
Net income (loss) allocable to common shares | 71 | 71
South Terrace |  |
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items] |  |
Total revenue | 10 | 10
Net income (loss) allocable to common shares | $ 5 | $ 5

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