Consolidated Statements Of Changes In Equity - USD ($) $ in Thousands	Total	Common Stock	Capital Surplus	Retained Earnings	Treasury Stock, Common	Accumulated Other Comprehensive Income (Loss)	Non-Controlling Interest
Beginning Balance at Dec. 31, 2020	$ 3,399,972	$ 589,352	$ 2,436,288	$ 73,000	$ (32,970)	$ 331,377	$ 2,925
Net income	540,590			530,765			9,825
Other comprehensive income (loss)	(254,297)					(254,297)
Distributions to non-controlling interest	(1,065)						(1,065)
Purchase of treasury stock	(129,361)				(129,361)
Sale of non-controlling interest in subsidiary	0		659				(659)
Cash dividends paid on common stock	(122,693)			(122,693)
Stock-based compensation	15,415		15,415
Stock Issued During Period RSAs and SARs	911		(21,799)		22,710
Dividends, Common Stock, Stock	(1,148)	21,452	259,331	(388,579)	106,648
Balance at Dec. 31, 2021	3,448,324	610,804	2,689,894	92,493	(32,973)	77,080	11,026
Net income	500,020			488,399			11,621
Other comprehensive income (loss)	(1,163,944)					(1,163,944)
Distributions to non-controlling interest	(6,361)						(6,361)
Purchase of treasury stock	(186,622)				(186,622)
Cash dividends paid on common stock	(127,466)			(127,466)
Stock-based compensation	16,995		16,995
Stock Issued During Period RSAs and SARs	1,905		(19,563)		21,468
Dividends, Common Stock, Stock	(1,274)	18,515	245,633	(421,806)	156,384
Balance at Dec. 31, 2022	2,481,577	629,319	2,932,959	31,620	(41,743)	(1,086,864)	16,286
Net income	485,177			477,060			8,117
Other comprehensive income (loss)	195,452					195,452
Distributions to non-controlling interest	(4,235)						(4,235)
Purchase of treasury stock	(76,890)				(76,890)
Sale of non-controlling interest in subsidiary	0		54				(54)
Cash dividends paid on common stock	(134,734)			(134,734)
Stock-based compensation	17,052		17,052
Stock Issued During Period RSAs and SARs	1,707		(21,732)		23,439
Dividends, Common Stock, Stock	(876)	26,003	234,289	(320,763)	59,595
Balance at Dec. 31, 2023	$ 2,964,230	$ 655,322	$ 3,162,622	$ 53,183	$ (35,599)	$ (891,412)	$ 20,114