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		$ 1,038,852	$ 1,330,410	$ 829,750
Other comprehensive income (loss):
Unrecognized actuarial gain (loss)		0	540	344
Foreign currency translation gain (loss)		103,612	161,915	(253,022)
Derivative and financial instruments designated as hedges gain (loss)		(134,369)	(131,120)	211,390
Other comprehensive income (loss)		(30,757)	31,335	(41,288)
Total comprehensive income (loss)		1,008,095	1,361,745	788,462
Less: Total comprehensive income (loss) attributable to noncontrolling interests	[1]	65,598	111,701	1,812
Total comprehensive income (loss) attributable to common stockholders		$ 942,497	$ 1,250,044	$ 786,650

[1] Includes amounts attributable to redeemable noncontrolling interests.