CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 1.1	$ 5.3
Accounts receivable, net	38.5	32.1
Unbilled revenues	5.2	6.0
Prepaid expenses and other current assets	6.5	5.7
Assets held for sale	0.6	0.6
Total current assets	51.9	49.7
Property, plant and equipment, net	199.9	189.2
Goodwill	0.0	9.0
Intangible assets, net	10.6	10.8
Other assets	0.1	1.0
Total assets	262.5	259.7
Current liabilities
Accounts payable	34.5	32.0
Accrued expenses	13.9	11.6
Capital lease obligations, current portion	1.3	8.0
Long-term debt, current portion	7.0	1.3
Total current liabilities	56.7	52.9
Capital lease obligations, less current portion	1.9	1.5
Long-term debt, less current portion	14.9	5.8
Other long-term liabilities	3.6	3.8
Total liabilities	77.1	64.0
Commitments and contingencies (Note 16)
Stockholders' equity
Preferred stock, $0.01 per share; 50,000,000 shares authorized, no shares issued or outstanding as of March 31, 2018 and December 31, 2017
Accumulated deficit	(12.5)	(6.6)
Additional paid-in capital	110.1	110.1
Total stockholders' equity	97.8	103.7
Non-controlling interest	87.6	92.0
Total stockholders' equity	185.4	195.7
Total liabilities and stockholders' equity	262.5	259.7
Class A Common Stock
Stockholders' equity
Common stock	0.1	0.1
Class B Common Stock
Stockholders' equity
Common stock	$ 0.1	$ 0.1