Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward]
Beginning Balance	$ 5,517,198
Other comprehensive loss before reclassifications	(53,743)
Amounts reclassified from accumulated other comprehensive loss	1,360
Ending Balance	5,343,965
Deferred net losses from terminated hedges	(400)	$ (700)
Net unrealized (loss) gain on derivative instruments
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward]
Beginning Balance	(22,780)
Other comprehensive loss before reclassifications	(42,728)
Amounts reclassified from accumulated other comprehensive loss	687
Ending Balance	(64,821)
Net unrealized gain (loss) on marketable securities
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward]
Beginning Balance	2,277
Other comprehensive loss before reclassifications	(4,306)
Amounts reclassified from accumulated other comprehensive loss	0
Ending Balance	(2,029)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward]
Beginning Balance	(28,485)
Ending Balance	(80,868)
Joint venture | Net unrealized (loss) gain on derivative instruments
Accumulated Other Comprehensive Income (Loss) of the Company [Roll Forward]
Beginning Balance	(7,982)
Other comprehensive loss before reclassifications	(6,709)
Amounts reclassified from accumulated other comprehensive loss	673
Ending Balance	$ (14,018)