Equity and Accumulated Other Comprehensive Income, Net (Schedule Of Accumulated Other Comprehensive Loss, Net) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance as of December 31, 2015	$ 4,536,502
Net current period change	(8,702)
Reclassification to interest expense from interest rate swaps	1,040
Balance as of March 31, 2016	4,445,210
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance as of December 31, 2015	(90,342)
Net current period change	(1,417)
Reclassification to interest expense from interest rate swaps	0
Balance as of March 31, 2016	(91,759)
Cash flow hedge adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance as of December 31, 2015	(6,248)
Net current period change	(7,285)
Reclassification to interest expense from interest rate swaps	1,040
Balance as of March 31, 2016	(12,493)
Accumulated other comprehensive income (loss), net
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance as of December 31, 2015	(96,590)
Balance as of March 31, 2016	$ (104,252)