CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$ 286.3	$ 284.5
Costs and expenses:
Operating (excluding depreciation and amortization)	138.0	148.5
Selling, general and administrative	45.2	46.8
Depreciation and amortization	61.8	55.8
Total costs and expenses	245.0	251.1
Income from operations	41.3	33.4
Other income (expense):
Interest expense	(31.4)	(33.5)
Gain on sale of assets, net		0.3
Other income, net	0.6	0.7
Income before provision for income tax	10.5	0.9
Income tax expense	(0.9)	(0.8)
Net income	$ 9.6	$ 0.1
Basic and diluted earnings per common share
Basic (in dollars per share)	$ 0.12	$ 0.00
Diluted (in dollars per share)	$ 0.11	$ 0.00
Weighted-average common shares outstanding
Basic (in shares)	82,031,043	81,037,633
Diluted (in shares)	85,629,983	81,536,813