Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT, Future Maturities of Long-Term Debt (Details)

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LONG-TERM DEBT, Future Maturities of Long-Term Debt (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Future maturities of long-term debt [Abstract]    
2012 $ 52,632  
2013 30,497  
2014 262,996  
2015 61,966  
2016 1,064,558  
Thereafter 259,702  
Total 1,732,351  
Debt discount (35,332)  
Debt premium 18,669  
Total including premium and discount $ 1,715,688 $ 1,731,864