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Segment Reporting (Details 2) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting [Abstract] |  |  |  |
Rental income from real estate assets sold or held for sale | $ 3,831 | $ 24,308 | $ 28,276 | $ 75,864
Operating expenses from real estate assets sold or held for sale | (1,458) | (9,622) | (10,883) | (28,066)
Net operating income from real estate assets sold or held for sale | $ 2,373 | $ 14,686 | $ 17,393 | $ 47,798

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