Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 435.8	$ 409.9
Costs and expenses
Cost of services and products, excluding items below	238.5	220.1
Selling, general and administrative, excluding items below	89.6	83.8
Depreciation and amortization	119.5	71.0
Restructuring and severance related charges	0.9	0.5
Transaction and integration costs	2.3	1.9
Total operating costs and expenses	450.8	377.3
Operating (loss) income	(15.0)	32.6
Interest expense	16.5	32.4
Other components of pension and postretirement benefit plans (benefit) expense	(2.6)	2.6
Other (income) expense, net	(0.4)	0.2
Loss before income taxes	(28.5)	(2.6)
Income tax (benefit) expense	(6.5)	0.4
Net loss	(22.0)	(3.0)
Preferred stock dividends	0.0	2.6
Net loss applicable to common shareowners	$ (22.0)	$ (5.6)