Real Estate - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net gain on sales of real estate properties	$ 1,072,183	$ 531,807	$ 447,637
Net gain on sales of land parcels	5	34,234	$ 2,044
Non-cash asset impairment charge	16,769
Carrying value	5,814,790	$ 5,785,367
Land [Member]
Non-cash asset impairment charge	16,800
Carrying value	$ 15,000