Equity and Accumulated Other Comprehensive Loss, Net (Schedule of Accumulated Other Comprehensive Income (Loss), Net) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	$ 11,049,450	$ 5,132,297
Balance at end of period	10,858,210	11,049,450
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(147,370)	(175,642)
Net current period change	(11,279)	28,272
Reclassification to interest expense from interest rate swaps	0	0
Balance at end of period	(158,649)	(147,370)
Cash flow hedge adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	13,200	4,888
Net current period change	7,890	5,898
Reclassification to interest expense from interest rate swaps	(3,826)	2,414
Balance at end of period	17,264	13,200
Foreign currency net investment hedge adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	25,738	35,149
Net current period change	0	(9,411)
Reclassification to interest expense from interest rate swaps	0	0
Balance at end of period	25,738	25,738
Accumulated Other Comprehensive Income (Loss), net
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(108,432)	(135,605)
Net current period change	(3,389)	24,759
Reclassification to interest expense from interest rate swaps	(3,826)	2,414
Balance at end of period	$ (115,647)	$ (108,432)