Equity and Accumulated Other Comprehensive Income, Net (Schedule of Accumulated Other Comprehensive Loss, Net) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	$ 4,536,502
Balance	4,325,642
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(90,342)
Net current period change	(18,644)
Reclassification to interest expense from interest rate swaps	0
Balance	(108,986)
Cash flow hedge adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(6,248)
Net current period change	(16,642)
Reclassification to interest expense from interest rate swaps	2,219
Balance	(20,671)
Accumulated other comprehensive income (loss), net
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance	(96,590)
Net current period change	(35,286)
Reclassification to interest expense from interest rate swaps	2,219
Balance	$ (129,657)