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, 2013
Dec. 31, 2012
Repayments of Long-term Debt [Abstract]    
2014 $ 2,836  
2015 1,528  
2016 1,573  
2017 1,620  
2018 262,668  
2019 and thereafter 780,200  
Long-term debt, gross 1,050,425 879,794
Less unamortized discount paid on the 2019 Notes 2,445  
Less current portion of long-term debt 2,836 1,928
Long-term debt, net $ 1,045,144 $ 875,123