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Long-Term Obligations (Schedule Of Maturities Of Long-Term Obligations) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Long-Term Obligations [Abstract]  
2012 $ 406,191
2013 7,494
2014 280,217
2015 394
2016 5
Thereafter 0
Long-term debt, total $ 694,301