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Real Estate and Intangible Assets - Pro Forma (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Operating Data: |  |  |  |
Total operating revenue |  | $ 22,012 |  | $ 66,406
Total operating expenses |  | (15,205) |  | (42,968)
Other expenses, net |  | (6,612) |  | (21,453)
Net income |  | 195 |  | 1,985
Dividends attributable to preferred and senior common stock |  | (2,256) |  | (5,050)
Net loss attributable to common stockholders |  | $ (2,061) |  | $ (3,065)
Share and Per Share Data: |  |  |  |
Basic and diluted loss per share of common stock - pro forma (in dollars per share) |  | $ (0.09) |  | $ (0.13)
Basic and diluted loss per share of common stock - actual (in dollars per share) | $ (0.01) | $ (0.10) | $ (0.03) | $ (0.15)
Weighted average shares outstanding-basic and diluted (in shares) | 27,234,569 | 23,509,054 | 25,833,423 | 22,915,086

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