Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive (Loss)
Beginning Balance at Dec. 31, 2021	$ 519.7	$ 0.6	$ 561.3	$ 1,011.4	$ (944.0)	$ (109.6)
Balance, shares at Dec. 31, 2021		47,302,299			15,472,856
Stock issuance, net, shares		159,628			2,037
Cash dividends - per common share	(44.4)			(44.4)
Share-based employee compensation	12.3		12.3
Net earnings	202.9			202.9
Other comprehensive income (loss)	9.5					9.5
Acquisition of treasury stock	(165.0)				$ (165.0)
Acquisition of treasury stock, shares		(1,889,742)			1,889,742
Ending Balance at Dec. 31, 2022	535.0	$ 0.6	573.6	1,169.9	$ (1,109.0)	(100.1)	[1]
Balance, shares at Dec. 31, 2022		45,572,185			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	43,902,061			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			19,614,358

[1] Amounts are net of tax and include our 50% share of AOCI components from our WAVE joint venture.