Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating Activities:
Net loss	$ (25.3)	$ (12.0)
Noncash items included in net loss:
Depreciation and amortization	37.1	40.7
Noncash equity-based compensation and employee benefits expense	5.3	5.2
(Gains) losses on property disposals, net	2.7	(0.3)
Gain on disposal of equity method investment	0.0	(2.3)
Other noncash items, net	2.9	4.4
Changes in assets and liabilities, net:
Accounts receivable	(45.0)	(35.2)
Accounts payable	(9.2)	(0.8)
Other operating assets	(8.0)	(6.9)
Other operating liabilities	13.6	(3.9)
Net cash used in operating activities	(25.9)	(11.1)
Investing Activities:
Acquisition of property and equipment	(16.3)	(19.8)
Proceeds from disposal of property and equipment	1.5	4.4
Restricted escrow receipts	95.0	27.2
Proceeds from disposal of equity method investment, net	0.0	14.6
Net cash provided by investing activities	80.2	26.4
Financing Activities:
Repayments of long-term debt	(5.4)	(4.2)
Debt issuance costs	(3.2)	0.0
Net cash used in financing activities	(8.6)	(4.2)
Net Increase In Cash and Cash Equivalents	45.7	11.1
Cash and Cash Equivalents, Beginning of Period	136.7	173.8
Cash and Cash Equivalents, End of Period	182.4	184.9
Supplemental Cash Flow Information:
Interest paid	(30.4)	(19.8)
Income tax refund (payment), net	$ 4.4	$ (1.4)