Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest Rate Swap [Member]
Other comprehensive income:
Change in unrealized loss on interest rate swaps	$ (155)	$ 406	$ (759)	$ 55
Net income	204,846	127,609	347,000	440,348
Change in unrealized gain on marketable securities	(35)	(54,265)	(33)	(38,547)
Change in unrealized loss on interest rate swaps			(759)	55
Change in foreign currency translation adjustment, net	(156)	997	2,354	(8,536)
Other comprehensive (loss)/income:	(346)	(52,862)	1,562	(47,028)
Comprehensive income	204,500	74,747	348,562	393,320
Comprehensive income attributable to noncontrolling interests	(1,437)	(609)	(2,878)	(3,006)
Comprehensive income attributable to the Company	$ 203,063	$ 74,138	$ 345,684	$ 390,314