CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 439,297	$ 415,981	$ 1,361,112
Other comprehensive (loss) income:
Foreign currency translation	5,729	(9,436)	20,612
Unrealized gain (loss) on available for sale securities	11,634	14,944	(437)
Derivative instruments	(30,814)	10,030	2,239
Total other comprehensive (loss) income	(13,451)	15,538	22,414
Comprehensive income	425,846	431,519	1,383,526
Comprehensive income attributable to noncontrolling interests	7,649	6,514	4,642
Comprehensive income attributable to common stockholders	$ 418,197	$ 425,005	$ 1,378,884