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Commitments and Contingencies (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Number of consolidated projects under construction |  | 6 |  |  | 6 |  |
Anticipated expenditures relating to completion of construction type contracts |  | $ 197,900 |  |  | $ 197,900 |  |
Rental expense |  | 1,000 |  | $ 1,000 | 3,000 |  | $ 3,100
Minimum annual rental commitments, remainder of 2017 |  | 700 |  |  | 700 |  |
Minimum annual rental commitments, 2018 |  | 2,900 |  |  | 2,900 |  |
Minimum annual rental commitments, 2019 |  | 2,800 |  |  | 2,800 |  |
Minimum annual rental commitments, 2020 |  | 2,800 |  |  | 2,800 |  |
Minimum annual rental commitments, 2021 |  | 2,900 |  |  | 2,900 |  |
Minimum annual rental commitments, thereafter |  | 10,100 |  |  | 10,100 |  |
Property operating and maintenance |  | 60,090 |  | 53,679 | 164,188 |  | 156,804
General and administrative |  | 12,266 |  | 10,810 | 37,585 |  | 34,836
Equity in income of joint ventures | [1] | $ 1,255 | [2] | $ 1,866 | $ 4,857 | [2] | $ 5,052
Maximum [Member] | Partnership Interest [Member] |  |  |  |  |  |  |
Less than joint venture economic interest noted |  | 100.00% |  |  | 100.00% |  |
Hurricane [Member] |  |  |  |  |  |  |
General and administrative |  | $ 700 |  |  | $ 700 |  |
Equity in income of joint ventures | [1],[2] | 400 |  |  | 400 |  |
Hurricane [Member] | Consolidated Entities [Member] |  |  |  |  |  |  |
Property operating and maintenance |  | $ 3,900 |  |  | $ 3,900 |  |
[1] | Equity in income excludes our ownership interest of fee income from various services provided by us to the Funds.
[2] | Equity in income for the three and nine months ended September 30, 2017 includes our ownership interest of the hurricane related expenses of approximately $0.4 million.

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