CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 56.6	$ 116.6	$ 108.1
Foreign currency translation adjustment	18.8	(40.0)	(25.0)
Actuarial net gain (loss) incurred, net of tax (Note 2)	(0.4)	(0.2)	(0.8)
Pension settlement charges, net of tax (Note 2)	0.1	0.0	0.0
Amortization of loss, net of tax (Note 2)	0.3	0.2	0.2
Other comprehensive income (loss)	18.8	(40.0)	(25.6)
Comprehensive income	$ 75.4	$ 76.6	$ 82.5