Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities:
Net Income	$ 15.1	$ 4.4
Noncash items included in net income:
Depreciation and amortization	79.2	82.9
Noncash equity-based compensation and employee benefits expense	11.3	11.7
(Gains) losses on property disposals, net	(11.4)	0.6
Gain on disposal of equity method investment	(2.3)	0.0
Other noncash items, net	6.4	3.8
Changes in assets and liabilities, net:
Accounts receivable	(55.3)	(43.2)
Accounts payable	7.3	11.7
Other operating assets	3.2	(0.6)
Other operating liabilities	(6.0)	(40.2)
Net cash provided by operating activities	47.5	31.1
Investing Activities:
Acquisition of property and equipment	(47.3)	(42.6)
Proceeds from disposal of property and equipment	21.0	13.1
Restricted escrow receipts	57.1	42.0
Restricted escrow deposits	0.0	(10.0)
Proceeds from disposal of equity method investment, net	14.6	0.0
Other, net	0.0	0.4
Net cash provided by investing activities	45.4	2.9
Financing Activities:
Repayments of long-term debt	(21.4)	(9.1)
Debt issuance costs	(1.8)	0.0
Net cash used in financing activities	(23.2)	(9.1)
Net Increase In Cash and Cash Equivalents	69.7	24.9
Cash and Cash Equivalents, Beginning of Period	173.8	171.1
Cash and Cash Equivalents, End of Period	243.5
Supplemental Cash Flow Information:
Interest paid	(44.2)	(54.1)
Income tax refund (payment), net	(3.4)	0.4
Debt redeemed for equity consideration	$ 0.0	$ 17.9