Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive (Loss)
Beginning Balance at Dec. 31, 2022	$ 535.0	$ 0.6	$ 573.6	$ 1,169.9	$ (1,109.0)	$ (100.1)
Balance, shares at Dec. 31, 2022		45,572,185
Treasury stock , shares at Dec. 31, 2022					17,364,635
Stock issuance, net			0.1		$ (0.1)
Stock issuance, net, shares		115,701			1,819
Cash dividends - per common share	(47.1)			(47.1)
Share-based employee compensation	18.0		18.0
Net earnings	223.8			223.8
Other comprehensive income (loss)	(4.6)					(4.6)
Acquisition of treasury stock	(133.3)				$ (133.3)
Acquisition of treasury stock, shares		(1,785,825)			1,785,825
Ending Balance at Dec. 31, 2023	591.8	$ 0.6	591.7	1,346.6	$ (1,242.4)	(104.7)	[1]
Balance, shares at Dec. 31, 2023		43,902,061
Treasury stock , shares at Dec. 31, 2023					19,152,279
Stock issuance, net, shares		121,667
Cash dividends - per common share	(50.8)			(50.8)
Share-based employee compensation	12.3		12.3
Net earnings	264.9			264.9
Other comprehensive income (loss)	(5.5)					(5.5)
Acquisition of treasury stock	(55.6)				$ (55.6)
Acquisition of treasury stock, shares		(462,079)			462,079
Ending Balance at Dec. 31, 2024	$ 757.1	$ 0.6	604.0	1,560.7	$ (1,298.0)	(110.2)	[1]
Balance, shares at Dec. 31, 2024	43,561,649	43,561,649
Treasury stock , shares at Dec. 31, 2024	19,614,358				19,614,358
Stock issuance, net, shares		124,011
Cash dividends - per common share	$ (55.3)			(55.3)
Share-based employee compensation	13.2		13.2
Net earnings	308.7			308.7
Other comprehensive income (loss)	7.1					7.1
Acquisition of treasury stock	(130.1)				$ (130.1)
Acquisition of treasury stock, shares		(769,067)			769,067
Ending Balance at Dec. 31, 2025	$ 900.7	$ 0.6	$ 617.2	$ 1,814.1	$ (1,428.1)	$ (103.1)	[1]
Balance, shares at Dec. 31, 2025	42,916,593	42,916,593
Treasury stock , shares at Dec. 31, 2025	20,383,425				20,383,425

[1] Amounts are net of tax.