Debt And Financing (Details) (USD $) In Millions, except Share data, unless otherwise specified																											6 Months Ended			3 Months Ended	6 Months Ended			12 Months Ended			6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Carrying Amount [Member]	Dec. 31, 2012 Carrying Amount [Member]	Jun. 30, 2013 Fair Value [Member]	Dec. 31, 2012 Fair Value [Member]	Jun. 30, 2013 Restructured Term Loan [Member]	Dec. 31, 2012 Restructured Term Loan [Member]	Jun. 30, 2013 Restructured Term Loan [Member] Carrying Amount [Member]	Dec. 31, 2012 Restructured Term Loan [Member] Carrying Amount [Member]	Jun. 30, 2013 Restructured Term Loan [Member] Fair Value [Member]	Dec. 31, 2012 Restructured Term Loan [Member] Fair Value [Member]	Jun. 30, 2013 Line of Credit [Member] Carrying Amount [Member]	Dec. 31, 2012 Line of Credit [Member] Carrying Amount [Member]	Jun. 30, 2013 Line of Credit [Member] Fair Value [Member]	Dec. 31, 2012 Line of Credit [Member] Fair Value [Member]	Jun. 30, 2013 Line of Credit [Member] ABL facility - Term A [Member]	Dec. 31, 2012 Line of Credit [Member] ABL facility - Term A [Member]	Jun. 30, 2013 Line of Credit [Member] ABL facility - Term B [Member]	Dec. 31, 2012 Line of Credit [Member] ABL facility - Term B [Member]	Jun. 30, 2013 Senior Notes [Member]	Dec. 31, 2012 Senior Notes [Member]	Jun. 30, 2013 Senior Notes [Member] Carrying Amount [Member]	Dec. 31, 2012 Senior Notes [Member] Carrying Amount [Member]	Jun. 30, 2013 Senior Notes [Member] Fair Value [Member]	Dec. 31, 2012 Senior Notes [Member] Fair Value [Member]	Jun. 30, 2013 Senior Notes [Member] Senior A Notes [Member]	Jun. 30, 2013 Senior Notes [Member] Senior A Notes [Member]	Dec. 31, 2012 Senior Notes [Member] Senior A Notes [Member]	Jun. 30, 2013 Senior Notes [Member] Senior B Notes [Member]	Jun. 30, 2013 Senior Notes [Member] Senior B Notes [Member]	Jun. 30, 2013 Senior Notes [Member] Senior B Notes [Member]	Jun. 30, 2012 Senior Notes [Member] Senior B Notes [Member]	Dec. 31, 2012 Senior Notes [Member] Senior B Notes [Member]	Jun. 30, 2013 Senior Notes [Member] Senior B Notes [Domain]	Dec. 31, 2012 Senior Notes [Member] Senior B Notes [Domain]	Jun. 30, 2013 Senior Notes [Member] 5.0% and 3.375% Contingent Convertible Senior Notes [Member]	Dec. 31, 2012 Senior Notes [Member] 5.0% and 3.375% Contingent Convertible Senior Notes [Member]	Jun. 30, 2013 Pension Contribution Deferral Obligation [Member]	Dec. 31, 2012 Pension Contribution Deferral Obligation [Member]	Jun. 30, 2013 Lease Financing Obligations [Member]	Dec. 31, 2012 Lease Financing Obligations [Member]	Jun. 30, 2013 Lease Financing Obligations [Member] Carrying Amount [Member]	Dec. 31, 2012 Lease Financing Obligations [Member] Carrying Amount [Member]	Jun. 30, 2013 Lease Financing Obligations [Member] Fair Value [Member]	Dec. 31, 2012 Lease Financing Obligations [Member] Fair Value [Member]	Dec. 31, 2012 Other Debt Obligations [Member]	Jun. 30, 2013 Other Debt Obligations [Member] Carrying Amount [Member]	Dec. 31, 2012 Other Debt Obligations [Member] Carrying Amount [Member]	Jun. 30, 2013 Other Debt Obligations [Member] Fair Value [Member]	Dec. 31, 2012 Other Debt Obligations [Member] Fair Value [Member]	Jul. 31, 2013 Subsequent Event [Member] Senior Notes [Member] Senior B Notes [Domain]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,367.6	$ 1,381.0					$ 298.7	$ 298.7									$ 105.0	$ 105.0	$ 221.1	$ 222.2							$ 169.3	$ 169.3	$ 161.2	$ 79.0	$ 79.0	$ 79.0		$ 91.5	$ 69.4	$ 69.4	$ 0.3		$ 124.6	$ 125.8	$ 300.2	$ 306.9					$ 0.3
Premium/(Discount), Debt	(1.4)	(5.6)					52.7	67.6									(3.5)	(4.8)	(6.3)	(8.5)							(23.2)	(23.2)	(27.8)	(16.9)	(16.9)	(16.9)		(25.4)	(3.9)	(6.3)	0		(0.3)	(0.4)	0	0					0
Book Value	1,366.2	1,375.4					351.4	366.3									101.5	100.2	214.8	213.7							146.1	146.1	133.4	62.1	62.1	62.1		66.1	65.5	63.1	0.3		124.3	125.4	300.2	306.9					0.3
Debt Instrument, Gross, Current Maturities																			(2.3)	(2.3)	(7.8)	(6.5)													(69.4)						(0.3)	(0.3)
Premium/(Discount), Current Maturities																			0	0	0	0													3.9						0	0
Book Value, Current Maturities	(75.9)	(9.1)																	(2.3)	(2.3)	(7.8)	(6.5)													(65.5)						(0.3)	(0.3)
Par Value, Excluding Current Maturities	1,287.8	1,371.9
Debt Instrument, Unamortized Discount (Premium), Net, Noncurrent Maturities	(2.5)	5.6
Book Value, Excluding Current Maturities	1,290.3	1,366.3
Stated Interest Rate							10.00%	10.00%									8.50%	8.50%	11.25%	11.25%							10.00%	10.00%	10.00%	10.00%	10.00%	10.00%		10.00%	6.00%	6.00%
Effective Interest Rate							0.00%	0.00%									15.80%	15.80%	15.00%	15.00%							18.30%	18.30%	18.30%	25.60%	25.60%	25.60%		25.60%	15.50%	15.50%			7.00%	7.10%	11.90%	11.90%
Debt Instrument, Convertible, Conversion Price, Future Period																											$ 34.0059	$ 34.0059						$ 18.5334
Debt Instrument, Face Amount, Including One Extra Month																											170.7	170.7
Debt Instrument, Convertible, Conversion Price																														$ 15.2475	$ 15.2475	$ 15.2475
Conversion of Stock, Shares Converted																														700,000	1,100,000	1,100,000
Common Stock, Shares, Issued																											5,600,000	5,600,000
Interest Expense, Debt																														5.6		9.0
Make Whole Premium																														2.3			3.9
Amortization of Debt Discount (Premium)																														3.3		5.1
Debt Instrument, Convertible, Number Of Equity Instruments, Outstanding																															5,000,000	5,000,000
Debt Instrument Carrying Amount Subsequent Month																														12.5	12.5	12.5
Debt Conversion, Convertible, Number of Equity Instruments, Subsequent Month																											0	0			800,000	800,000
Debt Instrument, Convertible, Conversion Ratio, Future Period																											29.4067	0.0294067			0.0340059	0.0340059		53.9567
Debt Instrument, Convertible, Conversion Ratio																															0.0655847	65.5847
Debt Conversion, Converted Instrument, Amount																														10.9		16.7
Common Stock, Capital Shares Reserved for Future Issuance																																			17,600
Common Stock, Capital Shares Reserved For Future Issuance, Future Period																																																				17,600
Stated Interest Rate, Minimum																																					5.00%	5.00%	3.00%	3.00%	10.00%	10.00%
Stated Interest Rate, Maximum																																					3.375%	3.375%	18.00%	18.00%	18.20%	18.20%
Borrowing Base																	157.8	147.6	221.1	222.2
Capacity																	175.0	175.0	221.1	222.2
Availability																	52.8	42.6	0	0
Long-term Debt, Fair Value			$ 1,366.2	$ 1,375.4	$ 1,386.1	$ 1,011.2			$ 351.4	$ 366.3	$ 296.5	$ 197.5	$ 316.3	$ 313.9	$ 329.7	$ 325.8							$ 208.2	$ 199.5	$ 272.5	$ 81.5																	$ 300.2	$ 306.9	$ 300.2	$ 306.9		$ 190.1	$ 188.8	$ 187.2	$ 99.5