CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 17.1	$ 69.4
Accounts receivable—trade, net of allowance for doubtful accounts of $5.4 and $5.8, respectively	75.6	81.5
Accounts receivable—other	3.1	2.1
Prepaid expenses and other	17.7	12.2
Total current assets	113.5	165.2
Plant, property and equipment, net	970.8	924.7
Franchise operating rights	809.2	952.4
Goodwill	270.9	384.1
Intangible assets subject to amortization, net	4.3	5.5
Other noncurrent assets	28.1	9.7
Total assets	2,196.8	2,441.6
Current liabilities
Accounts payable—trade	36.2	26.1
Accrued interest	4.5	3.6
Accrued liabilities and other	98.4	94.5
Current portion of debt and capital lease obligations	23.9	24.0
Current portion of unearned service revenue	46.2	43.2
Total current liabilities	209.2	191.4
Long-term debt and capital lease obligations—less current portion and debt issuance costs	2,232.8	2,227.2
Deferred income taxes, net	168.8	220.4
Other noncurrent liabilities	8.4	7.0
Total liabilities	2,619.2	2,646.0
Commitments and contingencies
Stockholders' deficit:
Preferred stock, $0.01 par value, 100,000,000 shares authorized; 0 shares issued and outstanding
Common stock, $0.01 par value, 700,000,000 shares authorized; 90,524,803 and 88,887,915 issued as of June 30, 2018 and December 31, 2017, respectively; 84,104,828 and 88,426,742 outstanding as of June 30, 2018 and December 31, 2017, respectively	0.9	0.9
Additional paid-in capital	308.6	299.9
Accumulated other comprehensive loss	(0.6)
Accumulated deficit	(668.8)	(500.4)
Treasury stock at cost, 6,419,975 and 461,173 shares as of June 30, 2018 and December 31, 2017, respectively	(62.5)	(4.8)
Total stockholders' deficit	(422.4)	(204.4)
Total liabilities and stockholders’ deficit	$ 2,196.8	$ 2,441.6