Long-Term Debt (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 24, 2012
Extinguishment of Debt [Line Items]
Repurchase of principal amount of debt securities	$ 70,500
11.50% senior secured notes due in 2017 [Member]
Extinguishment of Debt [Line Items]
Repurchase of principal amount of debt securities	5,000
4.625% notes due in 2014 [Member]
Extinguishment of Debt [Line Items]
Repurchase of principal amount of debt securities	15,000
5.750% notes due in 2017 [Member]
Extinguishment of Debt [Line Items]
Repurchase of principal amount of debt securities	$ 50,500