Condensed Consolidated Statement of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Treasury Stock	Deferred Compensation Obligation	Accumulated Other Comprehensive Income (Loss)	Non- controlling Interests
Balance — (in shares) at Dec. 31, 2023		176,793,000
Beginning balance (in shares) at Dec. 31, 2023					45,885,000
Balance — at Dec. 31, 2023	$ 1,975,051	$ 220,991	$ 506,525	$ 3,854,717	$ (2,014,474)	$ 7,942	$ (639,601)	$ 38,951
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock activity under stock plans (in shares)					(606,000)
Stock activity under stock plans	(7,961)		(34,139)		$ 26,141	37
Stock-based compensation	17,400		17,400
Net earnings	154,367			146,836				7,531
Cash dividends declared ($0.21 per share)	(55,976)			(55,976)
Repurchases of common shares (in shares)					(341,000)
Repurchases of common shares	(16,161)				$ (16,161)
Other comprehensive income, net of tax	(50,461)						(50,176)	(285)
Other, net	65						2	63
Balance — (in shares) at Jun. 30, 2024		176,793,000
Ending balance (in shares) at Jun. 30, 2024					45,620,000
Balance — at Jun. 30, 2024	$ 2,016,324	$ 220,991	489,786	3,945,577	$ (2,004,494)	7,979	(689,775)	46,260
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 0.42
Balance — (in shares) at Mar. 31, 2024		176,793,000
Beginning balance (in shares) at Mar. 31, 2024					45,372,000
Balance — at Mar. 31, 2024	$ 1,996,212	$ 220,991	483,963	3,900,922	$ (1,992,404)	6,767	(666,259)	42,232
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock activity under stock plans (in shares)					(36,000)
Stock activity under stock plans	(186)		(2,920)		$ 1,522	1,212
Stock-based compensation	8,743		8,743
Net earnings	76,452			72,616				3,836
Cash dividends declared ($0.21 per share)	(27,961)			(27,961)
Repurchases of common shares (in shares)					(284,000)
Repurchases of common shares	(13,612)				$ (13,612)
Other comprehensive income, net of tax	(23,588)						(23,516)	(72)
Other, net	264							264
Balance — (in shares) at Jun. 30, 2024		176,793,000
Ending balance (in shares) at Jun. 30, 2024					45,620,000
Balance — at Jun. 30, 2024	$ 2,016,324	$ 220,991	489,786	3,945,577	$ (2,004,494)	7,979	(689,775)	46,260
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 0.21
Balance — (in shares) at Dec. 31, 2024	176,793	176,793,000
Beginning balance (in shares) at Dec. 31, 2024	45,688				45,688,000
Balance — at Dec. 31, 2024	$ 2,051,712	$ 220,991	502,045	4,025,750	$ (2,007,869)	8,172	(741,424)	44,047
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock activity under stock plans (in shares)					(620,000)
Stock activity under stock plans	(8,778)		(31,337)		$ 24,318	(1,759)
Stock-based compensation	18,822		18,822
Net earnings	167,681			155,659				12,022
Cash dividends declared ($0.21 per share)	(55,740)			(55,740)
Repurchases of common shares (in shares)					(1,165,000)
Repurchases of common shares	(52,797)				$ (52,797)
Other comprehensive income, net of tax	158,313						158,220	93
Other, net	$ (211)							(211)
Balance — (in shares) at Jun. 30, 2025	176,793	176,793,000
Ending balance (in shares) at Jun. 30, 2025	46,233				46,233,000
Balance — at Jun. 30, 2025	$ 2,279,002	$ 220,991	489,530	4,125,669	$ (2,036,348)	6,413	(583,204)	55,951
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 0.42
Balance — (in shares) at Mar. 31, 2025		176,793,000
Beginning balance (in shares) at Mar. 31, 2025					45,616,000
Balance — at Mar. 31, 2025	$ 2,129,265	$ 220,991	482,529	4,071,710	$ (2,010,045)	8,114	(693,528)	49,494
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock activity under stock plans (in shares)					(121,000)
Stock activity under stock plans	540		(3,165)		$ 5,406	(1,701)
Stock-based compensation	10,166		10,166
Net earnings	88,224			81,754				6,470
Cash dividends declared ($0.21 per share)	(27,795)			(27,795)
Repurchases of common shares (in shares)					(738,000)
Repurchases of common shares	(31,709)				$ (31,709)
Other comprehensive income, net of tax	110,384						110,324	60
Other, net	$ (73)							(73)
Balance — (in shares) at Jun. 30, 2025	176,793	176,793,000
Ending balance (in shares) at Jun. 30, 2025	46,233				46,233,000
Balance — at Jun. 30, 2025	$ 2,279,002	$ 220,991	$ 489,530	$ 4,125,669	$ (2,036,348)	$ 6,413	$ (583,204)	$ 55,951
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 0.21