Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 33.2	$ 36.5
Changes in cumulative translation adjustment, net of tax of $(0.4) million and $(0.2) million, respectively	4.7	(3.8)
Amortization of prior service cost, net of tax of $0.0 million and $0.0 million, respectively	0.1	0.1
Amortization of actuarial net losses/(gains), net of tax of $0.1 million and $0.0 million, respectively	(0.4)	0.1
Total other comprehensive income/(loss)	4.4	(3.6)
Total comprehensive income	$ 37.6	$ 32.9