Debt And Financing (Details) (USD $) In Millions, except Share data, unless otherwise specified																									9 Months Ended			3 Months Ended	9 Months Ended						9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Carrying Amount [Member]	Dec. 31, 2012 Carrying Amount [Member]	Sep. 30, 2013 Fair Value [Member]	Dec. 31, 2012 Fair Value [Member]	Sep. 30, 2013 Restructured Term Loan [Member]	Dec. 31, 2012 Restructured Term Loan [Member]	Sep. 30, 2013 Restructured Term Loan [Member] Carrying Amount [Member]	Dec. 31, 2012 Restructured Term Loan [Member] Carrying Amount [Member]	Sep. 30, 2013 Restructured Term Loan [Member] Fair Value [Member]	Dec. 31, 2012 Restructured Term Loan [Member] Fair Value [Member]	Sep. 30, 2013 Line of Credit [Member] Carrying Amount [Member]	Dec. 31, 2012 Line of Credit [Member] Carrying Amount [Member]	Sep. 30, 2013 Line of Credit [Member] Fair Value [Member]	Dec. 31, 2012 Line of Credit [Member] Fair Value [Member]	Sep. 30, 2013 Line of Credit [Member] ABL facility - Term A [Member]	Dec. 31, 2012 Line of Credit [Member] ABL facility - Term A [Member]	Sep. 30, 2013 Line of Credit [Member] ABL facility - Term B [Member]	Dec. 31, 2012 Line of Credit [Member] ABL facility - Term B [Member]	Sep. 30, 2013 Senior Notes [Member] Carrying Amount [Member]	Dec. 31, 2012 Senior Notes [Member] Carrying Amount [Member]	Sep. 30, 2013 Senior Notes [Member] Fair Value [Member]	Dec. 31, 2012 Senior Notes [Member] Fair Value [Member]	Sep. 30, 2013 Senior Notes [Member] Senior A Notes [Member]	Sep. 30, 2013 Senior Notes [Member] Senior A Notes [Member]	Dec. 31, 2012 Senior Notes [Member] Senior A Notes [Member]	Sep. 30, 2013 Senior Notes [Member] Senior B Notes	Sep. 30, 2013 Senior Notes [Member] Senior B Notes	Sep. 30, 2013 Senior Notes [Member] Senior B Notes	Sep. 30, 2012 Senior Notes [Member] Senior B Notes	Dec. 31, 2012 Senior Notes [Member] Senior B Notes	Sep. 30, 2013 Senior Notes [Member] Senior B Notes [Domain]	Dec. 31, 2012 Senior Notes [Member] Senior B Notes [Domain]	Sep. 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]	Sep. 30, 2013 Pension Contribution Deferral Obligation [Member]	Dec. 31, 2012 Pension Contribution Deferral Obligation [Member]	Sep. 30, 2013 Lease Financing Obligations [Member]	Dec. 31, 2012 Lease Financing Obligations [Member]	Sep. 30, 2013 Lease Financing Obligations [Member] Carrying Amount [Member]	Dec. 31, 2012 Lease Financing Obligations [Member] Carrying Amount [Member]	Sep. 30, 2013 Lease Financing Obligations [Member] Fair Value [Member]	Dec. 31, 2012 Lease Financing Obligations [Member] Fair Value [Member]	Sep. 30, 2013 Other Debt Obligations [Member]	Dec. 31, 2012 Other Debt Obligations [Member]	Sep. 30, 2013 Other Debt Obligations [Member] Carrying Amount [Member]	Dec. 31, 2012 Other Debt Obligations [Member] Carrying Amount [Member]	Sep. 30, 2013 Other Debt Obligations [Member] Fair Value [Member]	Dec. 31, 2012 Other Debt Obligations [Member] Fair Value [Member]	Oct. 29, 2013 Subsequent Event [Member] Senior Notes [Member] Senior B Notes [Domain]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,359.1	$ 1,381.0					$ 298.7	$ 298.7									$ 105.0	$ 105.0	$ 220.5	$ 222.2					$ 173.5	$ 173.5	$ 161.2	$ 68.2	$ 68.2	$ 68.2		$ 91.5	$ 69.4	$ 69.4	$ 0.2		$ 124.3	$ 125.8	$ 299.3	$ 306.9						$ 0.3
Premium/(Discount), Debt	1.9	(5.6)					45.2	67.6									(2.8)	(4.8)	(5.1)	(8.5)					(20.6)	(20.6)	(27.8)	(12.1)	(12.1)	(12.1)		(25.4)	(2.5)	(6.3)	0		(0.2)	(0.4)	0	0						0
Book Value	1,361.0	1,375.4					343.9	366.3									102.2	100.2	215.4	213.7					152.9	152.9	133.4	56.1	56.1	56.1		66.1	66.9	63.1	0.2		124.1	125.4	299.3	306.9						0.3
Debt Instrument, Gross, Current Maturities																	(105.0)		(220.5)	(2.3)													(69.4)						(8.0)	(6.5)					(0.2)	(0.3)
Premium/(Discount), Current Maturities																	2.8		5.1	0													2.5						0	0					0	0
Book Value, Current Maturities	(392.7)	(9.1)															(102.2)		(215.4)	(2.3)													(66.9)						(8.0)	(6.5)					(0.2)	(0.3)
Par Value, Excluding Current Maturities	956.0	1,371.9
Debt Instrument, Unamortized Discount (Premium), Net, Noncurrent Maturities	(12.3)	5.6
Book Value, Excluding Current Maturities	968.3	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	$ 18.5334	$ 18.5334
Debt Instrument, Face Amount, Including One Extra Month																									174.8	174.8
Debt Instrument, Convertible, Conversion Price																												$ 16.0056	$ 16.0056	$ 16.0056
Number of shares converted per thousand																													62.4781	62.4781
Conversion of Stock, Shares Converted																												800,000	1,900,000	1,900,000
Common Stock, Shares, Issued																									5,600,000	5,600,000
Interest Expense, Debt																												6.2		15.2
Make Whole Premium																												2.7			6.6
Amortization of Debt Discount (Premium)																												3.5		8.6
Debt Instrument, Convertible, Number Of Equity Instruments, Outstanding																													4,200,000	4,200,000
Debt Conversion, Convertible, Number of Equity Instruments, Subsequent Month																									0	0			0	0
Debt Instrument, Convertible, Conversion Ratio, Future Period																									0.0294067	29.4067			53.9567	0.0539567
Debt Instrument, Convertible, Conversion Ratio																													0.0624781	0.0624781
Debt Conversion, Converted Instrument, Amount																												12.4		29.1
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																	168.2	147.6	220.5	222.2
Line Of Credit Facility, Total Availability																	63.2	42.6	0	0
Capacity																	175.0	175.0	220.5	222.2
Long-term Debt, Fair Value			$ 1,361.0	$ 1,375.4	$ 1,348.3	$ 1,011.2			$ 343.9	$ 366.3	$ 297.0	$ 197.5	$ 317.6	$ 313.9	$ 329.0	$ 325.8					$ 209.0	$ 199.5	$ 234.1	$ 81.5																	$ 299.3	$ 306.9	$ 299.3	$ 306.9			$ 191.2	$ 188.8	$ 188.9	$ 99.5