Statements Of Consolidated Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating Activities:
Net loss	$ (39.6)	$ (104.2)
Noncash items included in net loss:
Depreciation and amortization	87.1	94.8
Paid-in-kind interest on Series A Notes and Series B Notes	16.1	14.9
Amortization of deferred debt costs	3.3	2.5
Equity based compensation expense	4.0	2.1
Deferred income tax benefit	(0.8)	0
(Gains) losses on property disposals, net	(3.2)	1.8
Other noncash items, net	3.1	(3.1)
Changes in assets and liabilities, net:
Accounts receivable	(65.5)	(33.5)
Accounts payable	5.5	14.2
Other operating assets	0.4	0.5
Other operating liabilities	(28.6)	(6.6)
Net cash used in operating activities	(18.2)	(16.6)
Investing Activities:
Acquisition of property and equipment	(39.1)	(30.7)
Proceeds from disposal of property and equipment	4.2	21.1
Restricted escrow receipts (deposits), net	12.8	13.3
Other, net	1.8	2.4
Net cash provided by (used) in investing activities	(20.3)	6.1
Financing Activities:
Issuance of long-term debt	0.3	45.0
Repayment of long-term debt	(4.6)	(13.1)
Debt issuance costs	0	(5.1)
Net cash provided by financing activities	(4.3)	26.8
Net (Decrease) Increase In Cash and Cash Equivalents	(42.8)	16.3
Cash and Cash Equivalents, Beginning of Period	208.7	200.5
Cash and Cash Equivalents, End of Period	165.9	216.8
Supplemental Cash Flow Information:
Interest paid	(57.2)	(60.3)
Income tax (paid) refund, net	$ 11.8	$ 8.7