Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue	$ 448.9	$ 435.8
Costs and expenses
Cost of services and products, excluding items below	253.3	238.5
Selling, general and administrative, excluding items below	105.3	89.6
Depreciation and amortization	133.3	119.5
Restructuring and severance related charges	0.2	0.9
Transaction and integration costs	0.0	2.3
Total operating costs and expenses	492.1	450.8
Operating loss	(43.2)	(15.0)
Interest expense	35.5	16.5
Other components of pension and postretirement benefit plans expense (benefit)	0.4	(2.6)
Other expense (income), net	3.1	(0.4)
Loss before income taxes	(82.2)	(28.5)
Income tax benefit	(12.3)	(6.5)
Net loss	$ (69.9)	$ (22.0)