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Real Estate Acquired and Sold - Narrative (Details) | 1 Months Ended |
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Sep. 30, 2015 USD ($) | Feb. 28, 2015 USD ($) a | Mar. 31, 2016 USD ($) ft²
Business Acquisition [Line Items] |  |  |
Area of real estate property (in sq ft/acre) | ft² |  |  | 197,127
726 N. Glebe Road |  |  |
Business Acquisition [Line Items] |  |  |
Aggregate cost | $ 4,000,000 |  |
Property acquisition costs |  |  | $ 56,700
Westview Pad |  |  |
Business Acquisition [Line Items] |  |  |
Aggregate cost |  | $ 900,000 |
Area of real estate property (in sq ft/acre) | a |  | 1.1 |

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