Consolidated Statements of Shareholders’ Equity - USD ($) $ in Millions	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interest
Beginning balance (in shares) at Dec. 31, 2023		64,100,000
Beginning balance at Dec. 31, 2023	$ 2,505.0	$ 6.4	$ 1,845.3	$ 1,014.3	$ (360.8)	$ (0.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	70.2			71.3		(1.1)
Other Comprehensive Income, Net of Tax	25.8				25.8
Cash Dividends and Dividend Equivalents to Shareholders	(19.5)			(19.5)
Stock repurchased and retired during period (in shares)		0
Shares Issued Under Employee Stock Purchase Plan (in shares)		0
Shares Issued Under Employee Stock Purchase Plan	0.9		0.9
Equity-based Compensation Cost	12.2		12.2
Equity-based Awards, Net of Shares Exchanged (in shares)		300,000
Share Based Awards Net Of Shares Exchanged	(6.1)		(6.1)	0.0
Other Changes in Non-Controlling Interest	0.2					0.2
Ending balance (in shares) at Mar. 31, 2024		64,400,000
Ending balance at Mar. 31, 2024	2,588.7	$ 6.4	1,852.3	1,066.1	(335.0)	(1.1)
Beginning balance (in shares) at Dec. 31, 2024		63,900,000
Beginning balance at Dec. 31, 2024	2,784.3	$ 6.4	1,854.9	1,231.6	(304.5)	(4.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	97.0			99.7		(2.7)
Other Comprehensive Income, Net of Tax	43.2				43.2
Cash Dividends and Dividend Equivalents to Shareholders	(20.2)			(20.2)
Stock repurchased and retired during period (in shares)		64,000
Repurchases of Common Stock (Note 13)	(4.0)	$ (4.0)	(1.8)	(2.2)
Shares Issued Under Employee Stock Purchase Plan	0.8		0.8
Equity-based Compensation Cost	12.2		12.2
Equity-based Awards, Net of Shares Exchanged (in shares)		200,000
Share Based Awards Net Of Shares Exchanged	(2.5)		(2.5)
Other Changes in Non-Controlling Interest	0.7					0.7
Ending balance (in shares) at Mar. 31, 2025		64,000,000.0
Ending balance at Mar. 31, 2025	$ 2,911.5	$ 6.4	$ 1,863.6	$ 1,308.9	$ (261.3)	$ (6.1)