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Long-Term Obligations (Details 1) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Aggregate maturities of long-term obligations for each of the five years and thereafter  
2012 (October 1 - December 31) $ 23,202
2013 (January 1 - December 31) 5,558
2014 (January 1 - December 31) 5,104
2015 (January 1 - December 31) 4,690
2016 (January 1 - December 31) 418,337
2017 (January 1 - December 31) 390
Thereafter 121,393
Total $ 578,674