CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$ 184.0	$ 183.1	$ 547.4	$ 543.2
Costs and expenses:
Operating (excluding depreciation and amortization)	93.4	99.7	286.9	306.6
Selling, general and administrative	44.8	40.2	132.8	125.0
Depreciation and amortization	42.3	38.2	126.0	111.5
Total costs and expenses	180.5	178.1	545.7	543.1
Income from operations	3.5	5.0	1.7	0.1
Other income (expense):
Interest expense	(22.4)	(32.2)	(82.6)	(98.1)
Gain (loss) on sale of assets, net	0.1	(0.3)		0.3
Other income, net	1.8	0.8	2.4	1.5
Loss from continuing operations before provision for income tax	(17.0)	(26.7)	(78.5)	(96.2)
Income tax (expense) benefit	(4.2)	6.4	12.1	21.8
Loss from continuing operations	(21.2)	(20.3)	(66.4)	(74.4)
Discontinued Operations (Note 1)
Income from discontinued operations, net of tax	539.1	29.3	606.3	85.7
Net income	$ 517.9	$ 9.0	$ 539.9	$ 11.3
Basic and diluted (loss) per common share - continuing operations
Basic (in dollars per share)	$ (0.26)	$ (0.28)	$ (0.80)	$ (0.94)
Diluted (in dollars per share)	(0.26)	(0.28)	(0.80)	(0.94)
Basic and diluted earnings per common share - discontinued operations
Basic (in dollars per share)	6.50	0.39	7.34	1.08
Diluted (in dollars per share)	6.50	0.39	7.34	1.08
Basic and diluted earnings per common share
Basic (in dollars per share)	6.24	0.11	6.54	0.14
Diluted (in dollars per share)	$ 6.24	$ 0.11	$ 6.54	$ 0.14
Weighted-average common shares outstanding
Basic (in shares)	82,973,519	81,771,279	82,615,949	81,475,814
Diluted (in shares)	82,973,519	81,771,279	82,615,949	81,475,814