Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands		Total	Common Stock	Treasury Stock, Common [Member]	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest	Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE, July 1, 2020				(2,272)
BALANCE, July 1, 2020				(13,196)
BALANCE, July 1, 2020 at Dec. 31, 2018		$ 4,838,752,000	$ 3,184,000	$ (60,000,000)	$ 1,415,188,000	$ 3,598,876,000	$ (174,950,000)	$ 56,454,000
BALANCE, July 1, 2020 at Dec. 31, 2018			318,418
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		400,872,000				400,872,000
Less: net (loss) income attributable to continuing noncontrolling interest		2,321,000						2,889,000
Other comprehensive income (loss)		(85,796,000)					(85,796,000)
Purchase of treasury stock				(10,924)
Purchase of treasury stock		(291,813,000)							$ (291,813,000)
Vesting of restricted stock units, net of shares withheld for employee tax			684
Vesting of restricted stock units, net of shares withheld for employee tax		(1,801,000)	$ 7,000		(1,808,000)
Stock-based compensation expense		20,837,000			20,837,000
Exercise of stock options			606
Exercise of stock options		5,468,000	$ 6,000		5,462,000
Tax withholdings related to net share settlements of stock-based compensation awards			(110)
Tax withholdings related to net share settlements of stock-based compensation awards		(3,534,000)	$ 1,000		(3,533,000)
Dividends declared to noncontrolling interest shareholder		(4,659,000)						(4,659,000)
Acquired noncontrolling interest		(10,365,000)						(10,365,000)
Disposition of subsidiary with noncontrolling interests(1)		(18,880,000)			(8,764,000)			(10,116,000)
BALANCE, September 30, 2020 at Sep. 30, 2019				(13,196)
BALANCE, September 30, 2020 at Sep. 30, 2019		4,872,700,000	$ 3,196,000	$ (351,813,000)	1,427,382,000	3,999,748,000	(260,746,000)	54,933,000
BALANCE, September 30, 2020 at Sep. 30, 2019			319,598
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE, July 1, 2020				(9,315)
BALANCE, July 1, 2020				(13,196)
BALANCE, July 1, 2020 at Jun. 30, 2019		4,909,748,000	$ 3,190,000	$ (250,762,000)	1,429,129,000	3,847,485,000	(188,553,000)	69,259,000
BALANCE, July 1, 2020 at Jun. 30, 2019			319,010
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		152,263,000				152,263,000
Less: net (loss) income attributable to continuing noncontrolling interest		(46,000)						330,000
Other comprehensive income (loss)		(72,193,000)					(72,193,000)
Purchase of treasury stock				(3,881)
Purchase of treasury stock		(101,051,000)		$ (101,051,000)
Vesting of restricted stock units, net of shares withheld for employee tax			313
Vesting of restricted stock units, net of shares withheld for employee tax		(647,000)	$ 3,000		(650,000)
Stock-based compensation expense		7,178,000			7,178,000
Exercise of stock options			370
Exercise of stock options		3,598,000	$ 4,000		3,594,000
Tax withholdings related to net share settlements of stock-based compensation awards			(95)
Tax withholdings related to net share settlements of stock-based compensation awards		(3,106,000)	$ 1,000		(3,105,000)
Dividends declared to noncontrolling interest shareholder		(4,644,000)						(4,644,000)
Acquired noncontrolling interest		(104,000)						(104,000)
Disposition of subsidiary with noncontrolling interests(1)		(18,880,000)			(8,764,000)			(10,116,000)
BALANCE, September 30, 2020 at Sep. 30, 2019				(13,196)
BALANCE, September 30, 2020 at Sep. 30, 2019		4,872,700,000	$ 3,196,000	$ (351,813,000)	1,427,382,000	3,999,748,000	(260,746,000)	54,933,000
BALANCE, September 30, 2020 at Sep. 30, 2019			319,598
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE, July 1, 2020				(13,196)
BALANCE, July 1, 2020				(13,196)
BALANCE, July 1, 2020				(16,496)
BALANCE, July 1, 2020 at Dec. 31, 2019		5,048,580,000	$ 3,199,000	$ (351,813,000)	1,418,239,000	4,140,136,000	(200,885,000)	39,704,000
BALANCE, July 1, 2020 at Dec. 31, 2019			319,927
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		457,411,000				457,411,000
Less: net (loss) income attributable to continuing noncontrolling interest		1,166,000						1,269,000
Other comprehensive income (loss)		(8,837,000)					(8,837,000)
Purchase of treasury stock				(3,300)
Purchase of treasury stock		(88,006,000)		$ (88,006,000)
Vesting of restricted stock units, net of shares withheld for employee tax			791
Vesting of restricted stock units, net of shares withheld for employee tax		(3,055,000)	$ 8,000		(3,063,000)
Stock-based compensation expense		22,851,000			22,851,000
Exercise of stock options			112
Exercise of stock options		1,467,000	$ 1,000		1,466,000
Dividends declared to noncontrolling interest shareholder		(2,171,000)						(2,171,000)
Disposition of subsidiary with noncontrolling interests(1)	[1]	(11,404,000)						(11,404,000)
Adoption of ASU 2016-13 (see Note 3)		(2,519,000)				(2,519,000)
BALANCE, September 30, 2020 at Sep. 30, 2020				(16,496)
BALANCE, September 30, 2020 at Sep. 30, 2020		5,415,586,000	$ 3,208,000	$ (439,819,000)	1,439,493,000	4,595,028,000	(209,722,000)	27,398,000
BALANCE, September 30, 2020 at Sep. 30, 2020			320,830
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE, July 1, 2020				(16,496)
BALANCE, July 1, 2020				(16,496)
BALANCE, July 1, 2020 at Jun. 30, 2020		5,147,941,000	$ 3,205,000	$ (439,819,000)	1,433,338,000	4,401,545,000	(279,763,000)	29,435,000
BALANCE, July 1, 2020 at Jun. 30, 2020			320,530
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		193,483,000				193,483,000		448,000
Less: net (loss) income attributable to continuing noncontrolling interest		448,000
Other comprehensive income (loss)		70,041,000					70,041,000
Vesting of restricted stock units, net of shares withheld for employee tax			300
Vesting of restricted stock units, net of shares withheld for employee tax		(930,000)	$ 3,000		(933,000)
Stock-based compensation expense		7,088,000			7,088,000
Dividends declared to noncontrolling interest shareholder		(2,485,000)						(2,485,000)
BALANCE, September 30, 2020 at Sep. 30, 2020				(16,496)
BALANCE, September 30, 2020 at Sep. 30, 2020		$ 5,415,586,000	$ 3,208,000	$ (439,819,000)	$ 1,439,493,000	$ 4,595,028,000	$ (209,722,000)	$ 27,398,000
BALANCE, September 30, 2020 at Sep. 30, 2020			320,830
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE, July 1, 2020				(16,496)

[1] (1) The amount disposed of in 2020 relates to discontinued operations. See Note 2, "Discontinued Operations," for further information.