Condensed Consolidated Statements of Equity - USD ($)	Common Stock [Member] Deferred Compensation Plan [Member]	Common Stock [Member] Performance Shares [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Noncontrolling Interests [Member]	Total
Beginning Balances at Dec. 31, 2018			$ 4,131,307,000	$ 133,577,000	$ (74,786,000)		$ 2,264,510,000	$ 5,580,000	$ 6,460,188,000
Beginning Balances, shares at Dec. 31, 2018			263,141,413
Beginning Balance, treasury shares at Dec. 31, 2018						129,889
Sale of common shares held in trust			$ 3,610,000			$ (43,637)			3,610,000
Sale of common shares held in trust, shares			43,637
Vesting of restricted share units (shares)	15,371	180,258	400,555
Tax withholdings related to net share settlements of equity-based compensation				(16,973,000)					(16,973,000)
Tax withholdings related to net share settlements of equity-based compensation, shares			(202,679)
Equity-based compensation				11,626,000					$ 11,626,000
Exercise of warrants			8,690
Repurchase of common shares (shares)									0
Cash dividends on common shares							(42,084,000)		$ (42,084,000)
Amounts reclassified into earnings, net of taxes					(1,817,000)				(1,817,000)
Changes in fair value of cash flow hedges, net of taxes					(11,555,000)				(11,555,000)
Foreign currency translation adjustment					42,180,000				42,180,000
Net income (loss)							125,622,000	(45,000)	125,577,000
Ending Balances at Mar. 31, 2019			$ 4,134,917,000	128,230,000	(45,978,000)		2,345,970,000	5,535,000	6,568,674,000
Ending Balances, shares at Mar. 31, 2019			263,587,245
Ending Balance, treasury shares at Mar. 31, 2019						86,252
Cumulative effect adjustment from adoption of new accounting pronouncement							(2,078,000)		(2,078,000)
Beginning Balances at Dec. 31, 2019			$ 4,135,343,000	154,917,000	(10,963,000)		2,654,207,000	4,850,000	$ 6,938,354,000
Beginning Balances, shares at Dec. 31, 2019			263,618,161						263,618,161
Beginning Balance, treasury shares at Dec. 31, 2019						81,514			81,514
Sale of common shares held in trust			$ 679,000			$ (7,330)			$ 679,000
Sale of common shares held in trust, shares			7,330
Vesting of restricted share units (shares)	20,229	281,186	366,603
Fair value adjustment for common shares in deferred compensation plan exchanged for other investment options				(533,000)					(533,000)
Tax withholdings related to net share settlements of equity-based compensation				(23,090,000)					(23,090,000)
Tax withholdings related to net share settlements of equity-based compensation, shares			(226,766)
Equity-based compensation				10,144,000					$ 10,144,000
Exercise of warrants			9,751
Repurchase of common shares (shares)			(1,271,977)						(1,271,977)
Repurchase of common shares			$ (105,654,000)						$ (105,654,000)
Cash dividends on common shares							(48,018,000)		(48,018,000)
Amounts reclassified into earnings, net of taxes					(323,000)				(323,000)
Changes in fair value of cash flow hedges, net of taxes					(42,649,000)				(42,649,000)
Foreign currency translation adjustment					(184,717,000)				(184,717,000)
Net income (loss)							143,035,000	(142,000)	142,893,000
Ending Balances at Mar. 31, 2020			$ 4,030,368,000	$ 141,438,000	$ (238,652,000)		$ 2,749,224,000	$ 4,708,000	$ 6,687,086,000
Ending Balances, shares at Mar. 31, 2020			262,804,517						262,804,517
Ending Balance, treasury shares at Mar. 31, 2020						74,184			74,184