2014 Financing Transactions (Details) (USD $)	0 Months Ended	3 Months Ended			0 Months Ended		3 Months Ended	0 Months Ended	3 Months Ended			1 Months Ended	3 Months Ended						0 Months Ended	3 Months Ended				0 Months Ended			3 Months Ended		0 Months Ended									3 Months Ended									3 Months Ended										3 Months Ended			3 Months Ended			3 Months Ended
	Jan. 31, 2014	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Jan. 31, 2014 Preferred Stock [Member]	Jan. 31, 2014 Common Stock [Member]	Mar. 31, 2014 2014 ABL Facility Credit Agreement [Member] [Member]	Feb. 13, 2014 2014 Term Loan [Domain] [Domain]	Mar. 31, 2014 2014 Term Loan [Domain] [Domain]	Feb. 13, 2014 Secured CDA [Domain]	Feb. 13, 2014 AR CDA [Member]	Feb. 28, 2014 Series A Note [Member]	Mar. 31, 2014 Series A Note [Member]	Mar. 31, 2014 Line of Credit [Member] 2014 ABL Facility Credit Agreement [Member] [Member]		Mar. 31, 2014 2014 Term Loan [Domain] [Domain]	Feb. 13, 2014 2014 Term Loan [Domain] [Domain] 2014 Financing [Member]	Feb. 13, 2014 Senior Notes [Member] Unsecured Second A&R CD [Member]	Feb. 13, 2014 Senior Notes [Member] Senior B Notes [Domain]	Mar. 31, 2014 Senior Notes [Member] Senior B Notes [Domain]	Mar. 31, 2013 Senior Notes [Member] Senior B Notes [Domain]	Jan. 31, 2014 Senior Notes [Member] Senior B Notes [Domain]	Dec. 31, 2013 Senior Notes [Member] Senior B Notes [Domain]	Feb. 13, 2014 Senior Notes [Member] Unsecured CDA [Domain]	Mar. 31, 2014 Senior Notes [Member] 6% convertible senior notes [Domain]	Dec. 31, 2013 Senior Notes [Member] 6% convertible senior notes [Domain]	Mar. 31, 2014 2014 ABL Facility Credit Agreement [Member] [Member]	Feb. 13, 2014 2014 ABL Facility Credit Agreement [Member] [Member] 2014 Financing [Member]	Feb. 13, 2014 2014 Financing [Member]	Feb. 13, 2014 2014 Financing [Member] ABL Facility [Member]	Feb. 13, 2014 2014 Financing [Member] 2014 ABL Facility Credit Agreement [Member] [Member]		Feb. 13, 2014 2014 Financing [Member] 2014 Term Loan [Domain] [Domain]	Feb. 13, 2014 2014 Financing [Member] Series A Note [Member]	Jan. 31, 2014 2014 Financing [Member] Series A Note [Member]	Feb. 13, 2014 2014 Financing [Member] Restructured Term Loan [Member]	Feb. 13, 2014 2014 Financing [Member] 6% Notes [Member]	Mar. 31, 2014 Period After March 31. 2014 [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Minimum [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Minimum [Member] 2014 Term Loan [Domain] [Domain]	Mar. 31, 2014 Minimum [Member] Line of Credit [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Period Through March 31, 2014 [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Maximum [Member]	Mar. 31, 2014 Maximum [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Maximum [Member] 2014 Term Loan [Domain] [Domain]	Mar. 31, 2014 LIBOR Rate [Member] 2014 Term Loan [Domain] [Domain] 2014 Financing [Member]	Mar. 31, 2014 Higher of London Interbank Offer Rate or 1.00% [Member] 2014 Term Loan [Domain] [Domain] 2014 Financing [Member]	Mar. 31, 2014 Prime Rate [Member] 2014 Term Loan [Domain] [Domain] 2014 Financing [Member]	Mar. 31, 2014 One Month LIBOR [Member] 2014 Term Loan [Domain] [Domain] 2014 Financing [Member]	Mar. 31, 2014 Alternate Base Rate [Member] 2014 Term Loan [Domain] [Domain] 2014 Financing [Member]	Mar. 31, 2014 Base Rate [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Federal Funds Rate [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 One Month LIBOR [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 London Interbank Offered Rate (LIBOR) [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level II [Member] Minimum [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level II [Member] Maximum [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level II [Member] Base Rate [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level II [Member] London Interbank Offered Rate (LIBOR) [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level III [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level III [Member] Base Rate [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level III [Member] London Interbank Offered Rate (LIBOR) [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level I [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level I [Member] Base Rate [Member] 2014 ABL Facility Credit Agreement [Member] [Member]	Mar. 31, 2014 Average Quarterly Excess Capacity, Level I [Member] London Interbank Offered Rate (LIBOR) [Member] 2014 ABL Facility Credit Agreement [Member] [Member]
2014 Financing Transactions [Line Items]
Revolving Credit Facility Average Quarterly Excess Capacity																																																							$ 70,000,000,000,000	$ 140,000,000,000,000			$ 70,000,000,000,000			$ 140,000,000,000,000
Gain on extinguishment of debt		11,200,000	0
Acceleration of net premiums on old debt		16,300,000
Expense related to fair value of incremental shares converted		5,100,000
Issuance of long-term debt		693,000,000	300,000																												0		700,000,000
Payments for Fees, Expenses and Original Issue Discount																													50,800,000
Long-term Debt		1,204,900,000		1,363,400,000						51,000,000	124,200,000			0	[1]	691,400,000		73,200,000		14,200,000			58,700,000			68,300,000
Issuance of common stock		14,333,000			583,334	14,333,334
Issuance of equity, net	250,000,000	250,000,000	0
Stated Interest Rate														2.65%	[1]	8.00%				10.00%			10.00%		6.00%	6.00%
Repayments of Long-term Debt		789,500,000	2,400,000																											326,000,000					90,900,000	299,700,000	71,500,000
Future Repayments of Series A Notes												89,600,000	89,600,000																					89,600,000
Debt Instrument, Convertible, Conversion Price, Future Period																				$ 18.5334		$ 15.00
Make whole interest																				8,000,000
Payments of Financing Costs		43,800,000
Face amount																	700,000,000											450,000,000
Face amount discount percent																	1.00%
Quarterly installments as percent of principal amount																	1.00%
Debt Conversion, Converted Instrument, Amount																			50,600,000	1,200,000	5,800,000			50,600,000
Non Cash Sources of Funds																													174,800,000
Non Cash Uses of Funds																													174,800,000
Issuance of common stock																													215,000,000
Issuance of preferred stock																													35,000,000
Increase (Decrease) in Restricted Cash																														90,000,000	92,000,000	[2]
Repayments of debt, including accrued interest																																		93,900,000
Cash, Period Increase (Decrease)																													16,500,000
Sources of Funds																													1,040,000,000
Uses of Funds																													1,040,000,000
Payments of Debt Issuance Costs		26,700,000
Equity issuance costs		17,100,000	0
Previous maximum ownership percentage		19.99%
Amortization of Beneficial Conversion Feature on Preferred Stock		18,100,000	0
Right to increase New Term Loan																																											250,000,000
Debt Instrument, Total Leverage Ratio								3.25																																3.50					3.00									2.50
Debt Instrument, Variable Rate Basis, Option Two, Minimum Variable Rate Basis																																														1.00%
Debt Instrument, Basis Spread on Variable Rate																											2.50%																				7.00%	0.50%	1.00%	6.00%	1.50%	0.50%	1.00%				1.25%	2.25%		1.50%	2.50%		1.00%	2.00%
Debt Instrument, Covenant, Mandatory Prepayment Terms, Percentage of Excess Cash Flow									50.00%
Debt Instrument, Covenant, Mandatory Prepayment Terms, Percentage of Excess Cash Flow, Ratio Range Between 3.00 and 3.50 to 1.00									25.00%
Debt Instrument, Covenant, Mandatory Prepayment Terms, Percentage of Excess Cash Flow When Ratio is Less or Equal 3.00 to 1.00									0.00%
Debt Instrument, Covenant, Mandatory Prepayment Terms, Percentage of Net Cash Proceeds from All Sales									100.00%
Debt Instrument, Covenant, Mandatory Prepayment Terms, Percentage of Cash Proceeds from Debt Issuance									100.00%
Debt Instrument, Covenant, Events of Default, Final Unpaid Judgment Against Term Guarantors																																												30,000,000	30,000,000
Debt Instrument, Covenant, Events of Default, Cross Default																																							30,000,000	30,000,000
Borrowing Base Percent Of Net Eligible Receivables														85.00%
Borrowing Base, Percent Of Borrowing Base Cash														100.00%
Borrowing Base, Percent Of Deferred Revenue Liability														85.00%
Debt Instrument, Basis Spread on Variable Rate, Reduction When Total Leverage Ratio is Less Than 2.50 to 1.00																																																						0.25%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage																																						0.375%				0.25%
Average Revolver Usage																											50.00%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage, If Average Revolver Usage Greater Than 50 Percent																																						0.25%
Letter of Credit, Fees as Percentage of Stated Amount																											0.125%
Uncommitted Accordion							100,000,000
Debt Instrument, Covenant, liquidity																																							100,000,000
Debt Instrument, Covenant, availability																																							67,500,000
Debt Instrument, Consolidated Fixed Coverage Ratio														1.10																									1.10
Percent of collateral line cap														10.00%																											15.00%
Restricted amounts held in escrow		$ 171,600,000		$ 90,100,000			$ 82,000,000
Number of Consecutive Calendar Days 10 Percent of Collateral Cap is Maintained Available														30 days

[1] As of March 31, 2014, the borrowing base on our New ABL Facility was $450.0 million. The availability of $82.5 million is derived by reducing the borrowing base by our $367.5 million of outstanding letters of credit as of March 31, 2014.

[2] Under the terms of the New ABL facility, this amount was classified as “restricted cash” in the consolidated balance sheet at the closing date of the New ABL Facility.