Long-Term Debt -Senior Secured Notes (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Senior Secured Notes, due 2018 [Member]	Sep. 30, 2013 Senior Secured Notes, due 2018 [Member]	Aug. 05, 2014 Senior Secured Notes, due 2018 [Member]	Dec. 31, 2013 Senior Secured Notes, due 2018 [Member]	Jul. 02, 2013 Senior Secured Notes, due 2018 [Member]
Debt Instrument [Line Items]
Extinguishment of Debt, Accrued Interest Paid to Lenders									$ 700,000
Write off of Deferred Debt Issuance Cost					4,000,000	2,700,000
Net loss on extinguishments of long-term debt	(45,800,000)	(41,300,000)	(53,800,000)	(55,500,000)	23,700,000	(16,700,000)
Extinguishment of Debt, Fees Paid to Lenders					13,000,000	14,000,000
Extinguishment of Debt, Make-whole Interest Payment					6,700,000
Long-term Debt, stated interest rate					8.00%
Debt, short-term and long-term					0			325,000,000
Debt Instrument, Repurchased Face Amount							$ 325,000,000		$ 175,000,000
Redemption Premium, percentage of par value							0.00%		108.00%