Annual report pursuant to Section 13 and 15(d)

Long Term Debt (Schedule of Long Term Debt Payments) (Details)

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Long Term Debt (Schedule of Long Term Debt Payments) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearFourAndFiveAbstract    
2013 $ 1,928  
2014 1,525  
2015 91,387  
2016 1,430  
2017 1,475  
2018 and thereafter 782,049  
Total 879,794  
Debt Instrument, Unamortized Discount 2,743  
Long-term Debt, Current Maturities 1,928 3,241
Long-term debt, net $ 875,123 $ 858,031