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v3.3.1.900

Commitments and Contingencies (Details Textual) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) Communities | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2015
Real Estate Properties [Line Items] |  |  |  |
Number of Real Estate Properties | 133 |  |  | 2
Wholly-owned — redevelopment |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Development costs and capital expenditures Incurred but not yet paid | $ 1.2 |  |  |
Number of Real Estate Properties |  |  |  | 3
Wholly-owned — under development |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Development costs and capital expenditures Incurred but not yet paid | 12.6 |  |  |
Number of Real Estate Properties |  |  |  | 1
Office Space [Member] |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Rent expense | $ 0.3 | $ 1.3 | $ 1.3 |
Ground Leases [Member] |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Number of Real Estate Properties | Communities | 6 |  |  |
Rent expense | $ 5.5 | $ 5.4 | $ 5.2 |

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