Schedule of Other Finance Income (Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Pension interest cost	$ (1.6)	$ (2.2)	$ (2.7)
Expected return on pension plan assets	2.7	3.1	3.5
Foreign currency translation on senior bank debt	4.6	(5.6)	(0.8)
Foreign currency remeasurement on hedging instrument			3.2
Other finance income (Costs)	$ 5.7	$ (4.7)	$ 3.2