Shareholders' Equity - Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 578.3	$ 472.1	$ 435.1
Other comprehensive (loss) income before reclassifications	(27.3)	10.9
Amounts reclassified from accumulated other comprehensive loss	(3.1)	(3.0)
Total other comprehensive (loss) income, net of tax	(30.4)	7.9	(12.3)
Ending balance	622.1	578.3	472.1
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(42.3)	(50.2)	(37.9)
Ending balance	(72.7)	(42.3)	(50.2)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(45.6)	(53.9)
Other comprehensive (loss) income before reclassifications	(28.6)	9.3
Amounts reclassified from accumulated other comprehensive loss	(1.0)	(1.0)
Total other comprehensive (loss) income, net of tax	(29.6)	8.3
Ending balance	(75.2)	(45.6)	(53.9)
Pension and Postretirement Medical Benefits
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	3.7	2.7
Other comprehensive (loss) income before reclassifications	(0.9)	1.0
Amounts reclassified from accumulated other comprehensive loss	0.0	0.0
Total other comprehensive (loss) income, net of tax	(0.9)	1.0
Ending balance	2.8	3.7	2.7
Derivative Financial Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(0.4)	1.0
Other comprehensive (loss) income before reclassifications	2.0	0.6
Amounts reclassified from accumulated other comprehensive loss	(2.1)	(2.0)
Total other comprehensive (loss) income, net of tax	(0.1)	(1.4)
Ending balance	(0.5)	(0.4)	1.0
Unrealized Gain on Debt Securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	0.0	0.0
Other comprehensive (loss) income before reclassifications	0.2	0.0
Amounts reclassified from accumulated other comprehensive loss	0.0	0.0
Total other comprehensive (loss) income, net of tax	0.2	0.0
Ending balance	$ 0.2	$ 0.0	$ 0.0