Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 209,422,000		$ 65,200,000
Other comprehensive income (loss):
Unrecognized gain (loss) on equity investments	(11,687,000)		549,000
Unrecognized gain (loss) on cash flow hedges	(2,159,000)		440,000
Reclassification adjustment realized in net income	0		0
Unrecognized actuarial gain/(loss)	0		0
Unrecognized gain (loss) on foreign currency translation	(29,197,000)		(9,889,000)
Total other comprehensive income (loss)	(43,043,000)		(8,900,000)
Total comprehensive income (loss), total	166,379,000		56,300,000
Total comprehensive income (loss) attributable to noncontrolling interests	(10,285,000)	[1]	(9,187,000)	[1]
Comprehensive income (loss) attributable to controlling interests	$ 176,664,000		$ 65,487,000

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