Real Estate - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Real Estate [Abstract]
Net gain on sales of real estate properties	$ 363,928	$ (25)	$ 587,623	$ 352,218