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Investment in Unconsolidated Joint Ventures Investment in Unconsolidated Joint Ventures Income Statement Information (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract] |  |  |
Revenue | $ 5,995 | $ 5,800 | $ 2,424
Costs and expenses | 5,849 | 3,527 | 1,147
Income (loss) | 146 | 2,273 | 1,277
Equity in Income (loss) from unconsolidated joint ventures | $ 477 | $ 499 | $ 347

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