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Organization, Properties, Basis of Presentation, Financial Instruments and Recent Accounting Standards (Tables) | 3 Months Ended
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Mar. 31, 2014
Organization, Properties, Basis of Presentation, Financial Instruments and Recent Accounting Standards |
Summary of the entity's investment in real estate assets, including one asset held for sale |
|  | As of March 31, |
|  | 2014 |  | 2013 |
Commercial real estate: |  |  |  |  |
Number of properties |  | 39 |  | 37 |
Rentable square feet |  | 9,686,055 |  | 7,856,859 |

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- Definition Tabular disclosure of real estate properties and units in those properties that are included in the discussion of the nature of an entity's operations. + References No definition available. + Details
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