Annual report pursuant to Section 13 and 15(d)

Deferred Charges And Other Assets - Net (Details 1)

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Deferred Charges And Other Assets - Net (Details 1) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2009
Deferred Charges And Other Assets Net (Textual) [Abstract]    
Debt issue costs $ 4,427  
Percentage of senior subordinated notes 7.375% 8.625%
Prepayment of outstanding term loan debt 157,235  
Senior secured credit facility [Member]
   
Debt Instrument [Line Items]    
Write-off of unamortized debt issue costs 2,183  
Deferred Charges And Other Assets Net (Textual) [Abstract]    
Prepayment of outstanding term loan debt $ 157,235