v3.8.0.1

Equity (Tables) | 12 Months Ended
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Dec. 31, 2017
Equity [Abstract] |
Summary of Redemptions under Company's Share Redemption Program | The following table summarizes redemptions under the Share Redemption Program for the years ended December 31:
|  | For the years ended December 31, |
(in thousands, except stockholders) |  | 2017 |  |  | 2016 |  |  | 2015 |
Number of stockholders |  |  | 32 |  |  |  | 27 |  |  |  | 15 |
Number of shares |  |  | 119 |  |  |  | 109 |  |  |  | 43 |
Aggregate redemption price |  | $ | 9,439 |  |  | $ | 8,154 |  |  | $ | 3,054 |

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