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Debt (Table)
3 Months Ended
Dec. 31, 2011
Debt Tables Abstract  
Debt instrument table
    December 31, September 30,
    2011 2011
    (In thousands)
         
Unsecured 10% Notes, redeemed December 2011 $ - $ 2,303
Unsecured 5.125% Senior Notes, due January 2013   250,000   250,000
Unsecured 4.95% Senior Notes, due 2014   500,000   500,000
Unsecured 6.35% Senior Notes, due 2017   250,000   250,000
Unsecured 8.50% Senior Notes, due 2019   450,000   450,000
Unsecured 5.95% Senior Notes, due 2034   200,000   200,000
Unsecured 5.50% Senior Notes, due 2041   400,000   400,000
Medium term notes      
 Series A, 1995-1, 6.67%, due 2025   10,000   10,000
Unsecured 6.75% Debentures, due 2028   150,000   150,000
Rental property term note due in installments       
 through 2013   262   262
  Total long-term debt   2,210,262   2,212,565
Less:      
 Original issue discount on unsecured senior      
  notes and debentures   (3,938)   (4,014)
 Current maturities   (131)   (2,434)
    $ 2,206,193 $ 2,206,117