Condensed Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ 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, 2020		176,793			46,768
Balance — at Dec. 31, 2020	$ 1,761,321	$ 220,991	$ 502,227	$ 3,670,543	$ (2,059,309)	$ 6,164	$ (609,625)	$ 30,330
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock activity under stock plans (in shares)					402
Stock activity under stock plans	(5,004)		(24,478)		$ 18,561	913
Stock-based compensation	16,472		16,472
Net earnings	64,905			59,434				5,471
Cash dividends declared	(52,860)			(52,860)
Repurchases of common shares (in shares)					(440)
Repurchases of common shares	(17,531)				$ (17,531)
Other comprehensive income (loss), net of tax	9,644						9,482	162
Other, net	(6,255)							(6,255)
Balance — (in shares) at Jun. 30, 2021		176,793			46,806
Balance — at Jun. 30, 2021	1,770,692	$ 220,991	494,221	3,677,117	$ (2,058,279)	7,077	(600,143)	29,708
Balance — (in shares) at Mar. 31, 2021		176,793			46,496
Balance — at Mar. 31, 2021	1,741,786	$ 220,991	488,906	3,658,158	$ (2,045,937)	6,114	(616,200)	29,754
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock activity under stock plans (in shares)					1
Stock activity under stock plans	(327)		(1,397)		$ 107	963
Stock-based compensation	6,712		6,712
Net earnings	47,744			45,354				2,390
Cash dividends declared	(26,395)			(26,395)
Repurchases of common shares (in shares)					(311)
Repurchases of common shares	(12,449)				$ (12,449)
Other comprehensive income (loss), net of tax	16,072						16,058	14
Other, net	(2,451)						(1)	(2,450)
Balance — (in shares) at Jun. 30, 2021		176,793			46,806
Balance — at Jun. 30, 2021	$ 1,770,692	$ 220,991	494,221	3,677,117	$ (2,058,279)	7,077	(600,143)	29,708
Balance — (in shares) at Dec. 31, 2021	176,793	176,793			46,794
Balance — at Dec. 31, 2021	$ 1,837,345	$ 220,991	506,386	3,691,023	$ (2,057,706)	7,214	(563,589)	33,026
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock activity under stock plans (in shares)					417
Stock activity under stock plans	(3,696)		(23,270)		$ 19,867	(293)
Stock-based compensation	16,897		16,897
Net earnings	32,418			28,960				3,458
Cash dividends declared	(53,048)			(53,048)
Other comprehensive income (loss), net of tax	(70,689)						(72,029)	1,340
Other, net	$ (5,334)							(5,334)
Balance — (in shares) at Jun. 30, 2022	176,793	176,793			46,377
Balance — at Jun. 30, 2022	$ 1,753,893	$ 220,991	500,013	3,666,935	$ (2,037,839)	6,921	(635,618)	32,490
Balance — (in shares) at Mar. 31, 2022		176,793			46,424
Balance — at Mar. 31, 2022	1,791,055	$ 220,991	496,151	3,648,678	$ (2,039,900)	7,122	(578,053)	36,066
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock activity under stock plans (in shares)					47
Stock activity under stock plans	(164)		(2,024)		$ 2,061	(201)
Stock-based compensation	5,886		5,886
Net earnings	46,095			44,777				1,318
Cash dividends declared	(26,520)			(26,520)
Other comprehensive income (loss), net of tax	(57,561)						(57,565)	4
Other, net	$ (4,898)							(4,898)
Balance — (in shares) at Jun. 30, 2022	176,793	176,793			46,377
Balance — at Jun. 30, 2022	$ 1,753,893	$ 220,991	$ 500,013	$ 3,666,935	$ (2,037,839)	$ 6,921	$ (635,618)	$ 32,490