2014 Financing Transactions (Details) (USD $)	0 Months Ended	12 Months Ended			1 Months Ended	0 Months Ended
	Jan. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2014	Aug. 05, 2014	Feb. 11, 2010	Feb. 13, 2014
Debt Instrument [Line Items]
Class A convertible preferred stock par value		$ 1.00
Equity issuance proceeds	$ 250,000,000	$ 250,000,000	$ 0	$ 0
Repayment of long-term debt		892,700,000	9,200,000	25,600,000
Gain on extinguishment of debt		(11,200,000)	0	0
Extinguishment of Debt, Acceleration of Net Premiums on Old Debt		16,300,000
Expense Related to Fair Value of Incremental Shares Converted		5,100,000
Payments of Financing Costs		43,800,000
Capitalized Financing Costs		26,700,000
Payments of Stock Issuance Costs		17,100,000	0	0
Common Stock, Shares Authorized		95,000,000	33,333,333
Previous maximum ownership percentage		19.99%
Amortization of Beneficial Conversion Feature on Preferred Stock		18,100,000	0	0
Senior Notes [Member] | Senior B Notes
Debt Instrument [Line Items]
Interest rate		10.00%	10.00%
Conversion price, future period	$ 15.00				15.00
Make Whole Interest Expense		8,000,000
Senior Notes [Member] | 6% convertible senior notes [Domain]
Debt Instrument [Line Items]
Interest rate		6.00%
Principal amount issued							70,000,000
Restructured Term Loan [Member]
Debt Instrument [Line Items]
Interest rate			10.00%
Senior B Notes [Domain]
Debt Instrument [Line Items]
Interest rate		8.25%
Senior B Notes [Domain] | 2014 Financing [Member]
Debt Instrument [Line Items]
Principal amount issued		700,000,000
2014 ABL Facility Credit Agreement [Member] | 2014 Financing [Member]
Debt Instrument [Line Items]
Principal amount issued								450,000,000
Preferred Stock [Member]
Debt Instrument [Line Items]
Issuance of stock	583,334	0	0	0
Common Stock [Member]
Debt Instrument [Line Items]
Issuance of stock	14,333,334	3,471,000	1,929,000	1,112,000	14,333,000
2014 Financing [Member] | Series A Note [Member]
Debt Instrument [Line Items]
Repayment of long-term debt	90,900,000					89,600,000
Redeem Series A Notes (on August 5, 2014 and includes accrued interest)	$ 89,600,000					$ 89,600,000