Shareholders' Equity - Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 472.1	$ 435.1
Other comprehensive income (loss) before reclassifications	5.3	0.0
Amounts reclassified from accumulated other comprehensive loss	(0.6)	(4.0)
Total other comprehensive income (loss), net of tax	4.7	(4.0)
Ending balance	493.2	437.3
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(50.2)	(37.9)
Ending balance	(45.5)	(41.9)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(53.9)	(36.0)
Other comprehensive income (loss) before reclassifications	5.5	(3.8)
Amounts reclassified from accumulated other comprehensive loss	(0.2)	0.0
Total other comprehensive income (loss), net of tax	5.3	(3.8)
Ending balance	(48.6)	(39.8)
Pension and Post- Retirement Medical Benefits
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	2.7	(2.1)
Other comprehensive income (loss) before reclassifications	0.0	0.0
Amounts reclassified from accumulated other comprehensive loss	0.0	0.0
Total other comprehensive income (loss), net of tax	0.0	0.0
Ending balance	2.7	(2.1)
Derivative Financial Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	1.0	0.2
Other comprehensive income (loss) before reclassifications	(0.2)	3.8
Amounts reclassified from accumulated other comprehensive loss	(0.4)	(4.0)
Total other comprehensive income (loss), net of tax	(0.6)	(0.2)
Ending balance	$ 0.4	$ 0.0