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Segment Reporting (Details 2) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Segment Reporting [Abstract] |  |  |  |
Rental income from real estate assets sold or held for sale | $ 1,972 | $ 28,135 | $ 15,837 | $ 96,517
Operating expenses from real estate assets sold or held for sale | (1,092) | (10,259) | (7,237) | (34,894)
Net operating income from real estate assets sold or held for sale | $ 880 | $ 17,876 | $ 8,600 | $ 61,623

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