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Debt - Schedule of Debt and Capital Lease Obligations (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Current portion of finance lease	$ 0.1	$ 0.1
Current portion of debt	0.1	0.1
Non-current portion of finance lease and other debt	1.9	1.9
Long-term debt	787.1	700.6
Total debt	787.2	700.7
Senior unsecured credit facility [Member]
Debt Instrument [Line Items]
Long-term debt	90.0	0.0
4.7% senior notes due 2025 [Member]
Debt Instrument [Line Items]
Senior notes	0.0	300.0
4.7% senior notes due 2025 and 3.95% senior notes due 2027 [Member]
Debt Instrument [Line Items]
Senior notes --- original issue discount	(0.3)	(0.4)
Senior notes --- deferred financing costs	(4.5)	(0.9)
3.95% senior notes due 2027 [Member]
Debt Instrument [Line Items]
Senior notes	400.0	400.0
5.875% senior notes due 2035 [Member]
Debt Instrument [Line Items]
Senior notes	$ 300.0	$ 0.0

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