Consolidated Statements of Shareholders’ Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest
Beginning balance (in shares) at Dec. 31, 2022		63.9
Beginning balance at Dec. 31, 2022	$ 2,670.6	$ 6.4	$ 1,812.7	$ 1,366.4	$ (514.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(80.1)			(80.1)
Other Comprehensive Income (Loss), Net of Tax	60.2				60.2
Cash Dividends and Dividend Equivalents to Shareholders	(19.4)			(19.4)
Stock Issued During Period, Value, Employee Stock Purchase Plan	1.0		1.0
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	15.6		15.6
Equity-based Awards, Net of Shares Exchanged (in shares)		0.1
Share Based Awards Net Of Shares Exchanged	(1.0)		(0.4)	(0.6)
Ending balance (in shares) at Mar. 31, 2023		64.0
Ending balance at Mar. 31, 2023	2,646.9	$ 6.4	1,828.9	1,266.3	(454.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(80.1)
Beginning balance (in shares) at Dec. 31, 2023		64.1
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 (Loss)	71.3			71.3		(1.1)
Other Comprehensive Income (Loss), Net of Tax	25.8				25.8
Cash Dividends and Dividend Equivalents to Shareholders	(19.5)			(19.5)
Stock Issued During Period, Value, Employee Stock Purchase Plan	0.9		0.9
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	12.2		12.2
Equity-based Awards, Net of Shares Exchanged (in shares)		0.3
Share Based Awards Net Of Shares Exchanged	(6.1)		(6.1)
Other Changes in Non-Controlling Interest	0.2					0.2
Ending balance (in shares) at Mar. 31, 2024		64.4
Ending balance at Mar. 31, 2024	2,588.7	$ 6.4	$ 1,852.3	$ 1,066.1	$ (335.0)	$ (1.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	$ 70.2