CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$ 282.0	$ 289.7	$ 566.5	$ 576.9
Costs and expenses:
Operating (excluding depreciation and amortization)	146.7	144.4	295.8	293.6
Selling, general and administrative	43.0	47.6	89.2	93.1
Depreciation and amortization	56.8	50.9	112.6	100.6
Gain on sale of operating assets, net		(0.2)		(3.6)
Total costs and expenses	246.5	242.7	497.6	483.7
Income from operations	35.5	47.0	68.9	93.2
Other income (expense):
Interest expense	(32.4)	(36.0)	(65.9)	(71.6)
Gain on sale of assets, net	0.4		0.7
Other income, net	0.1	1.9	0.8	2.7
Income before provision for income tax	3.6	12.9	4.5	24.3
Income tax expense	(1.4)	(3.2)	(2.2)	(6.2)
Net income	$ 2.2	$ 9.7	$ 2.3	$ 18.1
Basic and diluted earnings per common share
Basic (in dollars per share)	$ 0.03	$ 0.12	$ 0.03	$ 0.22
Diluted (in dollars per share)	$ 0.03	$ 0.12	$ 0.03	$ 0.22
Weighted-average common shares outstanding
Basic (in shares)	81,612,359	80,675,392	81,325,795	80,513,361
Diluted (in shares)	82,603,198	80,910,676	82,091,303	80,903,032