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Note 11 - Senior Secured, Senior, Senior Exchangeable, Senior Amortizing and Senior Subordinated Notes (Details) - Senior Secured, Senior and Senior Subordinated Notes (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2014
Oct. 31, 2013
The 7.25% 2020 Notes [Member] | Senior Secured Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes $ 577,000 $ 577,000
The 9.125% 2020 Notes [Member] | Senior Secured Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 220,000 220,000
The 2.0% 2021 Notes [Member] | Senior Secured Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 53,121 53,119
The 5.0% 2021 Notes [Member] | Senior Secured Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 128,816 128,492
The 6.25% 2015 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 21,438 21,438
The 11.875% 2015 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 60,132 60,044
The 6.25% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 172,233 172,153
The 7.5% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 86,532 86,532
The 8.625% 2017 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 121,043 121,043
The 7.0% 2019 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 150,000  
The 11.0% 2017 Amortizing Note [Member] | Senior Amortizing Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 19,004 20,857
Senior Exchangeable Notes Due 2017 [Member] | Senior Exchangeable Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 67,472 66,615
The 7.25% Senior Subordinated Amorizing Notes [Member] | Senior Subordinated Amortizing Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 1,092 2,152
Senior Secured Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes 978,937 978,611
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
   
Debt Instrument [Line Items]    
Senior Notes $ 611,378 $ 461,210