Corporate Indebtedness - Schedule of Consolidated Interest Expense, Excluding Capitalized Interest (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest expense
Interest expense before capitalized interest	$ 39,868	$ 56,813
Interest on financing leases	1,492	1,663
Interest capitalized	(17,583)	(20,483)
Interest income	(389)	(499)
Interest expense, net	$ 23,388	$ 37,494