Long-Term Debt (Details 3)	9 Months Ended
	Sep. 30, 2012
Principal amount of redemption prices
Redemption Prices, Beginning on July 15, 2017	103.50%
Redemption Prices, Beginning on July 15, 2018	102.333%
Redemption Prices, Beginning on July 15, 2019	101.167%
Redemption Prices, Beginning on July 15, 2020 and thereafter	100.00%