Consolidated Statements of Shareholders’ Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2021		63.7
Beginning balance at Dec. 31, 2021	$ 3,129.7	$ 6.4	$ 1,790.7	$ 1,734.2	$ (401.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Loss	(86.3)			(86.3)
Other Comprehensive Income (Loss), Net of Tax	$ (66.2)				(66.2)
Dividends paid to shareholders per share (in dollars per share)	$ 0.31
Cash Dividends and Dividend Equivalents to Shareholders	$ (19.6)			(19.6)
Shares Issued Under Employee Stock Purchase Plan (Note 13)		$ 0.0	1.3
Shares Issued Under Employee Stock Purchase Plan (Note 13)	1.3
Equity-based Compensation Cost	11.9		11.9
Equity-based Awards, Net of Shares Exchanged (in shares)		0.1
Equity-based Awards, Net of Shares Exchanged	(1.6)	$ 0.0	(0.8)	(0.8)
Ending balance (in shares) at Mar. 31, 2022		63.8
Ending balance at Mar. 31, 2022	2,969.2	$ 6.4	1,803.1	1,627.5	(467.8)
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 Loss	(80.1)			(80.1)
Other Comprehensive Income (Loss), Net of Tax	$ 60.2				60.2
Dividends paid to shareholders per share (in dollars per share)	$ 0.31
Cash Dividends and Dividend Equivalents to Shareholders	$ (19.4)			(19.4)
Shares Issued Under Employee Stock Purchase Plan (Note 13)	1.0	$ 0.0	1.0
Equity-based Compensation Cost	15.6		15.6
Equity-based Awards, Net of Shares Exchanged (in shares)		0.1
Equity-based Awards, Net of Shares Exchanged	(1.0)	$ 0.0	(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)