Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 152,771,000		$ 33,605,000		$ 305,825,000		$ 112,588,000
Other comprehensive income (loss):
Unrecognized gain (loss) on equity investments	0		(260,000)		389,000		(346,000)
Unrecognized gain (loss) on cash flow hedges	455,000		473,000		1,327,000		1,416,000
Unrecognized gain (loss) on foreign currency translation	(42,664,000)		25,693,000		(39,444,000)		(18,164,000)
Total other comprehensive income (loss)	(42,209,000)		25,906,000		(37,728,000)		(17,094,000)
Total comprehensive income (loss), total	110,562,000		59,511,000		268,097,000		95,494,000
Total comprehensive income (loss) attributable to noncontrolling interests	(7,984,000)	[1]	(3,881,000)	[1]	(10,894,000)	[1]	(9,109,000)	[1]
Comprehensive income (loss) attributable to controlling interests	$ 118,546,000		$ 63,392,000		$ 278,991,000		$ 104,603,000

[1] (1) Includes amounts attributable to redeemable noncontrolling interests.