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Note 21 - Fair Value of Financial Instruments - Fair Value of Notes (Details) - USD ($)
Oct. 31, 2018
Feb. 01, 2018
Oct. 31, 2017
Notes, Fair Value $ 1,154,631,000   $ 1,620,326,000
Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value  
Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value 1,039,947,000   383,699,000
Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value 114,684,000   1,236,627,000
Thirteen and a Half Percent Senior Notes Due 2026 [Member]      
Notes, Fair Value   $ 103,000,000  
Five Percent Senior Notes due 2040 [Member]      
Notes, Fair Value   $ 44,000,000  
Senior Secured Notes [Member] | 9.5% Senior Secured Notes Due 2020 [Member]      
Notes, Fair Value 74,250,000   75,750,000
Senior Secured Notes [Member] | 9.5% Senior Secured Notes Due 2020 [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value  
Senior Secured Notes [Member] | 9.5% Senior Secured Notes Due 2020 [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value  
Senior Secured Notes [Member] | 9.5% Senior Secured Notes Due 2020 [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value 74,250,000   75,750,000
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member]      
Notes, Fair Value 40,434,000   44,425,000
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value  
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value  
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value 40,434,000   44,425,000
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member]      
Notes, Fair Value 124,781,000   132,580,000
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value  
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value 124,781,000  
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value   132,580,000
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member]      
Notes, Fair Value 424,670,000   479,600,000
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value  
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value 424,670,000  
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value   479,600,000
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member]      
Notes, Fair Value 366,720,000   448,000,000
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value  
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value 366,720,000  
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value   448,000,000
Senior Notes [Member] | Thirteen and a Half Percent Senior Notes Due 2026 [Member]      
Notes, Fair Value 88,148,000    
Senior Notes [Member] | Thirteen and a Half Percent Senior Notes Due 2026 [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value    
Senior Notes [Member] | Thirteen and a Half Percent Senior Notes Due 2026 [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value 88,148,000    
Senior Notes [Member] | Thirteen and a Half Percent Senior Notes Due 2026 [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value    
Senior Notes [Member] | The 7.0% 2019 Notes [Member]      
Notes, Fair Value     131,221,000
Senior Notes [Member] | The 7.0% 2019 Notes [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value    
Senior Notes [Member] | The 7.0% 2019 Notes [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value     131,221,000
Senior Notes [Member] | The 7.0% 2019 Notes [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value    
Senior Notes [Member] | Five Percent Senior Notes due 2040 [Member]      
Notes, Fair Value 35,628,000    
Senior Notes [Member] | Five Percent Senior Notes due 2040 [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value    
Senior Notes [Member] | Five Percent Senior Notes due 2040 [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value 35,628,000    
Senior Notes [Member] | Five Percent Senior Notes due 2040 [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value    
Senior Notes [Member] | The 8.0% Senior Notes Due 2019 [Member]      
Notes, Fair Value     252,478,000
Senior Notes [Member] | The 8.0% Senior Notes Due 2019 [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value    
Senior Notes [Member] | The 8.0% Senior Notes Due 2019 [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value     252,478,000
Senior Notes [Member] | The 8.0% Senior Notes Due 2019 [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value    
Senior Amortizing Notes [Member] | The 11.0% 2017 Amortizing Note [Member]      
Notes, Fair Value     2,055,000
Senior Amortizing Notes [Member] | The 11.0% 2017 Amortizing Note [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value    
Senior Amortizing Notes [Member] | The 11.0% 2017 Amortizing Note [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value    
Senior Amortizing Notes [Member] | The 11.0% 2017 Amortizing Note [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value     2,055,000
Senior Exchangeable Notes [Member] | Senior Exchangeable Notes Due 2017 [Member]      
Notes, Fair Value     54,217,000
Senior Exchangeable Notes [Member] | Senior Exchangeable Notes Due 2017 [Member] | Fair Value, Inputs, Level 1 [Member]      
Notes, Fair Value    
Senior Exchangeable Notes [Member] | Senior Exchangeable Notes Due 2017 [Member] | Fair Value, Inputs, Level 2 [Member]      
Notes, Fair Value    
Senior Exchangeable Notes [Member] | Senior Exchangeable Notes Due 2017 [Member] | Fair Value, Inputs, Level 3 [Member]      
Notes, Fair Value     $ 54,217,000