Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Total stockholders' equity	Noncontrolling interests
Balance at Dec. 31, 2019	$ 4,425,002	$ 1	$ 2,300,926	$ 2,161,049	$ (41,492)	$ 4,420,484	$ 4,518
Balance, Shares at Dec. 31, 2019		112,476
Net income	63,846	$ 0	0	63,204	0	63,204	642
Dividends on common shares	(49,702)	0	0	(49,702)	0	(49,702)	0
Purchase of Company shares	(65,785)	$ 0	(65,785)	0	0	(65,785)	0
Purchase of Company shares, shares		(1,703)
Shares issued in connection with share-based compensation	(14,378)	$ 0	(13,547)	(831)	0	(14,378)	0
Shares issued in connection with share-based compensation, shares		644
Share-based compensation	25,903	$ 0	25,903	0	0	25,903	0
Net activity related to noncontrolling interests	4,489	0	72	0	0	72	4,417
Other comprehensive income (loss)	(20,453)	0	0	0	(20,453)	(20,453)	0
Balance at Mar. 31, 2020	4,368,922	$ 1	2,247,569	2,173,720	(61,945)	4,359,345	9,577
Balance, Shares at Mar. 31, 2020		111,417
Balance at Dec. 31, 2019	4,425,002	$ 1	2,300,926	2,161,049	(41,492)	4,420,484	4,518
Balance, Shares at Dec. 31, 2019		112,476
Net income	419,131
Other comprehensive income (loss)	65,305
Balance at Sep. 30, 2020	4,734,935	$ 1	2,273,007	2,426,949	23,813	4,723,770	11,165
Balance, Shares at Sep. 30, 2020		111,645
Balance at Mar. 31, 2020	4,368,922	$ 1	2,247,569	2,173,720	(61,945)	4,359,345	9,577
Balance, Shares at Mar. 31, 2020		111,417
Net income	171,694	$ 0	0	170,655	0	170,655	1,039
Dividends on common shares	(48,996)	0	0	(48,996)	0	(48,996)	0
Purchase of Company shares	(3,079)	$ 0	(3,079)	0	0	(3,079)	0
Purchase of Company shares, shares		(71)
Shares issued in connection with share-based compensation	4,481	$ 0	5,308	(827)	0	4,481	0
Shares issued in connection with share-based compensation, shares		173
Share-based compensation	9,693	$ 0	9,693	0	0	9,693	0
Net activity related to noncontrolling interests	(405)	0	0	0	0	0	(405)
Other comprehensive income (loss)	73,301	0	0	0	73,301	73,301	0
Balance at Jun. 30, 2020	4,575,611	$ 1	2,259,491	2,294,552	11,356	4,565,400	10,211
Balance, Shares at Jun. 30, 2020		111,519
Net income	183,591	$ 0	0	182,279	0	182,279	1,312
Dividends on common shares	(49,070)	0	0	(49,070)	0	(49,070)	0
Shares issued in connection with share-based compensation	4,300	$ 0	5,112	(812)	0	4,300	0
Shares issued in connection with share-based compensation, shares		126
Share-based compensation	8,404	$ 0	8,404	0	0	8,404	0
Net activity related to noncontrolling interests	(358)	0	0	0	0	0	(358)
Other comprehensive income (loss)	12,457	0	0	0	12,457	12,457	0
Balance at Sep. 30, 2020	4,734,935	$ 1	2,273,007	2,426,949	23,813	4,723,770	11,165
Balance, Shares at Sep. 30, 2020		111,645
Balance at Dec. 31, 2020	$ 4,921,648	$ 1	2,214,935	2,655,495	39,541	4,909,972	11,676
Balance, Shares at Dec. 31, 2020	110,353,000	110,353
Net income	$ 234,458	$ 0	0	233,616	0	233,616	842
Dividends on common shares	(50,985)	0	0	(50,985)	0	(50,985)	0
Purchase of Company shares	(64,786)	$ 0	(64,786)	0	0	(64,786)	0
Purchase of Company shares, shares		(1,226)
Shares issued in connection with share-based compensation	(8,378)	$ 0	(7,493)	(885)	0	(8,378)	0
Shares issued in connection with share-based compensation, shares		614
Share-based compensation	31,203	$ 0	31,203	0	0	31,203	0
Net activity related to noncontrolling interests	(2,115)	0	0	0	0	0	(2,115)
Other comprehensive income (loss)	(95,370)	0	0	0	(95,369)	(95,369)	(1)
Balance at Mar. 31, 2021	4,965,675	$ 1	2,173,859	2,837,241	(55,828)	4,955,273	10,402
Balance, Shares at Mar. 31, 2021		109,741
Balance at Dec. 31, 2020	$ 4,921,648	$ 1	2,214,935	2,655,495	39,541	4,909,972	11,676
Balance, Shares at Dec. 31, 2020	110,353,000	110,353
Net income	$ 988,331
Other comprehensive income (loss)	(105,683)
Balance at Sep. 30, 2021	$ 5,612,985	$ 1	2,186,372	3,476,903	(66,141)	5,597,135	15,850
Balance, Shares at Sep. 30, 2021	109,822,000	109,822
Balance at Mar. 31, 2021	$ 4,965,675	$ 1	2,173,859	2,837,241	(55,828)	4,955,273	10,402
Balance, Shares at Mar. 31, 2021		109,741
Net income	303,408	$ 0	0	302,299	0	302,299	1,109
Dividends on common shares	(50,058)	0	0	(50,058)	0	(50,058)	0
Shares issued in connection with share-based compensation	4,111	$ 0	4,966	(855)	0	4,111	0
Shares issued in connection with share-based compensation, shares		178
Share-based compensation	8,165	$ 0	8,165	0	0	8,165	0
Net activity related to noncontrolling interests	(467)	0	(64)	0	0	(64)	(403)
Other comprehensive income (loss)	44,018	0	0	0	44,018	44,018	0
Balance at Jun. 30, 2021	5,274,852	$ 1	2,186,926	3,088,627	(11,810)	5,263,744	11,108
Balance, Shares at Jun. 30, 2021		109,919
Net income	450,465	$ 0	0	445,250	0	445,250	5,215
Dividends on common shares	(56,023)	0	0	(56,023)	0	(56,023)	0
Purchase of Company shares	(14,060)	$ 0	(14,060)	0	0	(14,060)	0
Purchase of Company shares, shares		(208)
Shares issued in connection with share-based compensation	5,290	$ 0	6,241	(951)	0	5,290	0
Shares issued in connection with share-based compensation, shares		111
Share-based compensation	7,265	$ 0	7,265	0	0	7,265	0
Net activity related to noncontrolling interests	(473)	0	0	0	0	0	(473)
Other comprehensive income (loss)	(54,331)	0	0	0	(54,331)	(54,331)	0
Balance at Sep. 30, 2021	$ 5,612,985	$ 1	$ 2,186,372	$ 3,476,903	$ (66,141)	$ 5,597,135	$ 15,850
Balance, Shares at Sep. 30, 2021	109,822,000	109,822