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