Debt (Notes Redemption) (Details) (8.625% Senior Secured Notes Due February 2018, Senior Secured Notes)	3 Months Ended
	Mar. 31, 2013
2015
Debt Instrument [Line Items]
Notes at redemptions prices, percentage	104.30%
2016
Debt Instrument [Line Items]
Notes at redemptions prices, percentage	102.20%
2017 and thereafter
Debt Instrument [Line Items]
Notes at redemptions prices, percentage	100.00%