CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 441,185	$ 439,297	$ 415,981
Other comprehensive (loss) income:
Foreign currency translation	3,254	5,729	(9,436)
Unrealized (loss) gain on available for sale securities	(3,549)	11,634	14,944
Derivative instruments	(17,918)	(30,814)	10,030
Total other comprehensive (loss) income	(18,213)	(13,451)	15,538
Comprehensive income	422,972	425,846	431,519
Comprehensive income attributable to noncontrolling interests	3,613	7,649	6,514
Comprehensive income attributable to common stockholders	$ 419,359	$ 418,197	$ 425,005