v2.4.0.6
DEBT Table 3 (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Debt Instrument [Line Items]    
Amount outstanding $ 2,293,030 $ 2,137,080
Amount Received From Trustee 192,084  
Amount Remaining in Trust 173,356  
Go Zone Bonds Due June 2038
    
Debt Instrument [Line Items]    
Date Issued June 26, 2008  
Maturity Date Jun. 01, 2038  
Amount outstanding 55,440  
Amount of Letter of Credit 56,169  
Amount Received From Trustee 55,440  
Amount Remaining in Trust 0  
Average Annual Interest Rate 0.18%  
Go Zone Bonds Due July 2040
    
Debt Instrument [Line Items]    
Date Issued July 15, 2010  
Maturity Date Jul. 01, 2040  
Amount outstanding 100,000  
Amount of Letter of Credit 101,315  
Amount Received From Trustee 100,000  
Amount Remaining in Trust 0  
Average Annual Interest Rate 0.18%  
Go Zone Bonds Due October 2040
    
Debt Instrument [Line Items]    
Date Issued October 7, 2010  
Maturity Date Oct. 01, 2040  
Amount outstanding 50,000  
Amount of Letter of Credit 50,658  
Amount Received From Trustee 24,580  
Amount Remaining in Trust 25,420  
Average Annual Interest Rate 0.18%  
Go Zone Bonds Due December 2040
    
Debt Instrument [Line Items]    
Date Issued December 29, 2010  
Maturity Date Dec. 01, 2040  
Amount outstanding 85,000  
Amount of Letter of Credit 86,118  
Amount Received From Trustee 835  
Amount Remaining in Trust 84,165  
Average Annual Interest Rate 0.18%  
Go Zone Bonds Due August 2041
    
Debt Instrument [Line Items]    
Date Issued August 29, 2011  
Maturity Date Aug. 01, 2041  
Amount outstanding 75,000  
Amount of Letter of Credit 76,085  
Amount Received From Trustee 11,229  
Amount Remaining in Trust 63,771  
Average Annual Interest Rate 0.15%  
Total Gulf Opportunity Zone revenue bonds
    
Debt Instrument [Line Items]    
Amount outstanding 365,440 290,440
Amount of Letter of Credit $ 370,345