CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$ 176.1	$ 181.9	$ 350.7	$ 363.4
Costs and expenses:
Operating (excluding depreciation and amortization)	83.0	95.1	170.3	193.5
Selling, general and administrative	39.3	45.5	77.6	88.0
Depreciation and amortization	43.9	42.4	87.9	83.7
Total costs and expenses	166.2	183.0	335.8	365.2
Income (loss) from operations	9.9	(1.1)	14.9	(1.8)
Other income (expense):
Interest expense	(7.9)	(28.8)	(15.3)	(60.2)
Other income (loss), net	6.3	(0.1)	14.2	0.5
Income (loss) from continuing operations before provision for income tax	8.3	(30.0)	13.8	(61.5)
Income tax (expense) benefit	(4.3)	7.5	(4.1)	16.3
Income (loss) from continuing operations	4.0	(22.5)	9.7	(45.2)
Discontinued Operations (Note 3)
Income from discontinued operations, net of tax		34.9		67.2
Net income	$ 4.0	$ 12.4	$ 9.7	$ 22.0
Basic and diluted earnings (loss) per common share - continuing operations
Basic (in dollars per share)	$ 0.05	$ (0.27)	$ 0.12	$ (0.55)
Diluted (in dollars per share)	0.05	(0.27)	0.11	(0.55)
Basic and diluted earnings per common share - discontinued operations
Basic (in dollars per share)		0.42		0.82
Diluted (in dollars per share)		0.42		0.82
Basic and diluted earnings per common share
Basic (in dollars per share)	0.05	0.15	0.12	0.27
Diluted (in dollars per share)	$ 0.05	$ 0.15	$ 0.11	$ 0.27
Weighted-average common shares outstanding
Basic (in shares)	84,148,917	82,828,227	83,722,315	82,433,311
Diluted (in shares)	86,793,139	82,828,227	86,642,849	82,433,311