Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue	$ 295.7	$ 249.6
Costs and expenses
Cost of services and products, excluding items below	149.4	124.1
Selling, general and administrative, excluding items below	68.4	55.3
Depreciation and amortization	51.2	45.8
Restructuring and severance related charges	0.3	25.6
Transaction and integration cost	2.2	0.6
Total operating costs and expenses	271.5	251.4
Operating income (loss)	24.2	(1.8)
Interest expense	30.8	18.0
Other components of pension and postretirement benefit plans expense	3.3	3.2
Gain on sale of Investment in CyrusOne	0.0	(117.7)
Other income, net	(0.4)	(0.4)
(Loss) income before income taxes	(9.5)	95.1
Income tax (benefit) expense	(1.2)	34.5
Net (loss) income	(8.3)	60.6
Preferred stock dividends	2.6	2.6
Net (loss) income applicable to common shareowners	$ (10.9)	$ 58.0
Basic net (loss) earnings per common share	$ (0.26)	$ 1.38
Diluted net (loss) earnings per common share	$ (0.26)	$ 1.37