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Operating Properties (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015
Variable Interest Entity [Line Items] |  |
Properties | 302 |
Apartment Units | 77,458 |
Investments in unconsolidated entities | $ 60,141 | $ 68,101
Secured Debt | $ 4,119,181 | $ 4,685,134
Consolidated VIE |  |
Variable Interest Entity [Line Items] |  |
Properties | 17 |
Apartment Units | 3,215 |
Investments in unconsolidated entities | $ 46,908 |
Secured Debt | $ 301,110 |
Unconsolidated VIE |  |
Variable Interest Entity [Line Items] |  |
Properties | 0 |
Apartment Units | 0 |
Investments in unconsolidated entities | $ 0 |
Secured Debt | $ 0 |
Operating Property [Member] | Consolidated VIE |  |
Variable Interest Entity [Line Items] |  |
Properties | 16 |
Apartment Units | 2,783 |
Wisconsin Place [Domain] | Consolidated VIE |  |
Variable Interest Entity [Line Items] |  |
Apartment Units | 432 |
Business Acquisition, Percentage of Voting Interests Acquired | 75.00% |
Basis of joint venture | $ 170,800 |
Wisconsin Place [Domain] | Unconsolidated VIE |  |
Variable Interest Entity [Line Items] |  |
Investments in unconsolidated entities | $ 46,900 |
Nexus Sawgrass [Member] |  |
Variable Interest Entity [Line Items] |  |
Apartment Units | 501 |
Investments in unconsolidated entities | $ 5,000 |
Equity Method Investment, Ownership Percentage | 20.00% |
Secured Debt | $ 48,600 |
Debt Instrument, Interest Rate, Stated Percentage | 5.60% |
Debt Instrument, Maturity Date | Jan. 01, 2021 |
Domain [Member] |  |
Variable Interest Entity [Line Items] |  |
Apartment Units | 444 |
Investments in unconsolidated entities | $ 9,300 |
Equity Method Investment, Ownership Percentage | 20.00% |
Secured Debt | $ 96,800 |
Debt Instrument, Interest Rate, Stated Percentage | 5.75% |
Debt Instrument, Maturity Date | Jan. 01, 2022 |

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