CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands		Total	Common Stock	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2021			113,014,528
Beginning balance at Dec. 31, 2021		$ 6,021,460	$ 2,702,743	$ (6,401)	$ 3,264,719	$ (54,861)	$ 115,260
Beginning balance (in shares) at Dec. 31, 2021				(87,608)
Increase (Decrease) in Shareholders' Equity
Net income		189,880			181,268		8,612
Other comprehensive income (loss)		47				47
Dividends on common stock		(192,213)			(192,213)
Issuance of common stock (in shares)			63,521
Issuance of common stock		9,554	$ 9,554
Purchase of treasury stock (in shares)	[1]			(24,885)
Purchase of treasury stock	[1]	(1,715)		$ (1,715)
Reissuance of treasury stock for stock-based compensation and other (in shares)				70,962
Reissuance of treasury stock for stock-based compensation and other		5,140		$ 5,140
Capital activities by noncontrolling activities		(10,628)					(10,628)
Other		(2)			(2)
Ending balance (in shares) at Jun. 30, 2022			113,078,049
Ending balance at Jun. 30, 2022		6,021,523	$ 2,712,297	$ (2,976)	3,253,772	(54,814)	113,244
Ending balance (in shares) at Jun. 30, 2022				(41,531)
Beginning balance (in shares) at Mar. 31, 2022			113,047,699
Beginning balance at Mar. 31, 2022		6,050,136	$ 2,706,325	$ (3,648)	3,281,601	(53,708)	119,566
Beginning balance (in shares) at Mar. 31, 2022				(50,921)
Increase (Decrease) in Shareholders' Equity
Net income		168,618			164,312		4,306
Other comprehensive income (loss)		(1,106)				(1,106)
Dividends on common stock		(192,139)			(192,139)
Issuance of common stock (in shares)			30,350
Issuance of common stock		5,972	$ 5,972
Reissuance of treasury stock for stock-based compensation and other (in shares)				9,390
Reissuance of treasury stock for stock-based compensation and other		673		$ 673
Capital activities by noncontrolling activities		(10,628)					(10,628)
Other		(3)		(1)	(2)
Ending balance (in shares) at Jun. 30, 2022			113,078,049
Ending balance at Jun. 30, 2022		$ 6,021,523	$ 2,712,297	$ (2,976)	3,253,772	(54,814)	113,244
Ending balance (in shares) at Jun. 30, 2022				(41,531)
Beginning balance (in shares) at Dec. 31, 2022		113,247,189	113,247,189
Beginning balance at Dec. 31, 2022		$ 6,159,876	$ 2,724,740	$ (5,005)	3,360,347	(31,435)	111,229
Beginning balance (in shares) at Dec. 31, 2022		(73,613)		(73,613)
Increase (Decrease) in Shareholders' Equity
Net income		$ 111,978			103,366		8,612
Other comprehensive income (loss)		(156)				(156)
Dividends on common stock		(195,981)			(195,981)
Issuance of common stock (in shares)			139,705
Issuance of common stock		11,372	$ 11,372
Purchase of treasury stock (in shares)	[1]			(34,675)
Purchase of treasury stock	[1]	(2,609)		$ (2,609)
Reissuance of treasury stock for stock-based compensation and other (in shares)				32,521
Reissuance of treasury stock for stock-based compensation and other		2,287		$ 2,287
Capital activities by noncontrolling activities		(10,628)					(10,628)
Other		$ (2)		(1)	(1)
Ending balance (in shares) at Jun. 30, 2023		113,386,894	113,386,894
Ending balance at Jun. 30, 2023		$ 6,076,137	$ 2,736,112	$ (5,328)	3,267,731	(31,591)	109,213
Ending balance (in shares) at Jun. 30, 2023		(75,767)		(75,767)
Beginning balance (in shares) at Mar. 31, 2023			113,359,467
Beginning balance at Mar. 31, 2023		$ 6,164,451	$ 2,730,851	$ (7,451)	3,357,052	(31,536)	115,535
Beginning balance (in shares) at Mar. 31, 2023				(106,141)
Increase (Decrease) in Shareholders' Equity
Net income		110,969			106,663		4,306
Other comprehensive income (loss)		(55)				(55)
Dividends on common stock		(195,981)			(195,981)
Issuance of common stock (in shares)			27,427
Issuance of common stock		5,261	$ 5,261
Purchase of treasury stock (in shares)	[2]			(1,521)
Purchase of treasury stock	[2]	(119)		$ (119)
Reissuance of treasury stock for stock-based compensation and other (in shares)				31,895
Reissuance of treasury stock for stock-based compensation and other		2,242		$ 2,242
Capital activities by noncontrolling activities		(10,628)					(10,628)
Other		$ (3)			(3)
Ending balance (in shares) at Jun. 30, 2023		113,386,894	113,386,894
Ending balance at Jun. 30, 2023		$ 6,076,137	$ 2,736,112	$ (5,328)	$ 3,267,731	$ (31,591)	$ 109,213
Ending balance (in shares) at Jun. 30, 2023		(75,767)		(75,767)

[1] Primarily represents shares of common stock withheld from certain stock awards for tax purposes.

[2] Primarily represents shares of common stock withheld from certain stock awards for tax purposes.