Statements of Consolidated Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities:
Net income (loss)	$ 4.4	$ (75.1)
Noncash items included in net income (loss):
Depreciation and amortization	82.9	82.0
Paid-in-kind interest on Series A Notes and Series B Notes	0.4	12.7
Amortization of deferred debt costs	3.2	4.9
Amortization of premiums and discounts on debt	1.4	20.1
Noncash equity based compensation and employee benefits expense	11.7	15.4
Deferred income tax benefit	0.0	(1.1)
(Gains) losses on property disposals, net	0.6	(6.3)
(Gain) loss on extinguishment of debt	0.6	(11.2)
Other noncash items, net	(1.8)	(3.7)
Changes in assets and liabilities, net:
Accounts receivable	(43.2)	(95.5)
Accounts payable	11.7	22.3
Other operating assets	(0.6)	(15.8)
Other operating liabilities	(40.2)	(4.3)
Net cash provided by (used in) operating activities	31.1	(55.6)
Investing Activities:
Acquisition of property and equipment	(42.6)	(24.7)
Proceeds from disposal of property and equipment	13.1	7.3
Restricted escrow receipts	42.0	90.7
Restricted escrow deposits	(10.0)	(128.2)
Other, net	0.4	5.3
Net cash provided by (used in) investing activities	2.9	(49.6)
Financing Activities:
Issuance of long-term debt	0.0	693.0
Repayments of long-term debt	(9.1)	(795.7)
Debt issuance costs	0.0	(27.4)
Equity issuance costs	0.0	(17.1)
Equity issuance proceeds	0.0	250.0
Net cash provided by (used in) financing activities	(9.1)	102.8
Net Increase (Decrease) In Cash and Cash Equivalents	24.9	(2.4)
Cash and Cash Equivalents, Beginning of Period	171.1	176.3
Cash and Cash Equivalents, End of Period	196.0	173.9
Supplemental Cash Flow Information:
Interest paid	(54.1)	(67.7)
Income tax refund, net	$ 0.4	$ 9.9