Long-Term Debt (Schedule of Early Redemption Prices on 8.0% Senior Notes) (Details) (Senior Notes at 8.0, Due 2019 [Member], Senior Notes [Member])	Dec. 31, 2012
Period from November 15, 2015 to November 14, 2016 [Member]
Debt Instrument [Line Items]
Future Redemption Price of Debt During Eligibility Period, as a Percentage of Principal Amount	104.00%
Period from November 15, 2016 to November 14, 2017 [Member]
Debt Instrument [Line Items]
Future Redemption Price of Debt During Eligibility Period, as a Percentage of Principal Amount	102.00%
Period from November 15, 2017 and Thereafter [Member]
Debt Instrument [Line Items]
Future Redemption Price of Debt During Eligibility Period, as a Percentage of Principal Amount	100.00%