Other Comprehensive Loss - OCI (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Foreign currency translation adjustments [Abstract]
Foreign currency translation	$ (3.4)	$ 3.6
Foreign currency translation, tax	0.0	0.0
Foreign currency translation, net of tax	(3.4)	3.6
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent	0.1	0.2
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent	0.0	0.0
Net change in employee benefit plans	0.1	0.2
Total cash flow hedges	(0.3)	0.2
Changes in fair value of cash flow hedges:
Changes in fair value of cash flow hedges, before tax	(0.6)	(0.1)
Changes in fair value of cash flow hedges, tax	0.3	0.3
Total other comprehensive earnings [Abstract]
Other comprehensive loss, before tax	(3.9)	3.7
Other comprehensive loss, tax	0.3	0.3
Other comprehensive (loss) earnings, net of tax	(3.6)	4.0
Net losses reclassified into earnings	$ 1.0	$ 0.1