Interest and Debt Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest and Debt Expense [Abstract]
Interest expense	$ 61,793	$ 72,345	$ 191,973	$ 266,597
Capitalized interest and debt expense	(9,328)	(16,047)	(30,829)	(59,184)
Amortization of deferred financing costs	4,906	5,150	13,474	19,527
Interest and debt expense, Total	$ 57,371	$ 61,448	$ 174,618	$ 226,940