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Note 21 - Fair Value of Financial Instruments - Fair Value of Notes (Details) - USD ($)
$ in Thousands
Oct. 31, 2019
Oct. 31, 2018
Notes, Fair Value $ 1,310,638 $ 1,268,959
Fair Value, Inputs, Level 1 [Member]    
Notes, Fair Value
Fair Value, Inputs, Level 2 [Member]    
Notes, Fair Value 356,429 1,039,947
Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value 954,209 229,012
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member]    
Notes, Fair Value 189,430 424,670
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 189,430 424,670
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value
Senior Secured Notes [Member] | 9.5% Senior Secured Notes Due 2020 [Member]    
Notes, Fair Value   74,250
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
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member]    
Notes, Fair Value 166,999 366,720
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 166,999 366,720
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member]    
Notes, Fair Value   40,434
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
Senior Secured Notes [Member] | The 7.75% Senior Secured 1.125 Lien Notes due February 15, 2026 [Member]    
Notes, Fair Value 350,000  
Senior Secured Notes [Member] | The 7.75% Senior Secured 1.125 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 1 [Member]    
Notes, Fair Value  
Senior Secured Notes [Member] | The 7.75% Senior Secured 1.125 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 2 [Member]    
Notes, Fair Value  
Senior Secured Notes [Member] | The 7.75% Senior Secured 1.125 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value 350,000  
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member]    
Notes, Fair Value   124,781
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
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value  
Senior Secured Notes [Member] | The 10.5% Senior Secured 1.25 Lien Notes due February 15, 2026 [Member]    
Notes, Fair Value 282,322  
Senior Secured Notes [Member] | The 10.5% Senior Secured 1.25 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 1 [Member]    
Notes, Fair Value  
Senior Secured Notes [Member] | The 10.5% Senior Secured 1.25 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 2 [Member]    
Notes, Fair Value  
Senior Secured Notes [Member] | The 10.5% Senior Secured 1.25 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value 282,322  
Senior Secured Notes [Member] | The 11.25% Senior Secured 1.5 Lien Notes due February 15, 2026 [Member]    
Notes, Fair Value 103,141  
Senior Secured Notes [Member] | The 11.25% Senior Secured 1.5 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 1 [Member]    
Notes, Fair Value  
Senior Secured Notes [Member] | The 11.25% Senior Secured 1.5 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 2 [Member]    
Notes, Fair Value  
Senior Secured Notes [Member] | The 11.25% Senior Secured 1.5 Lien Notes due February 15, 2026 [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value 103,141  
Senior Notes [Member] | The 13.5% 2026 Notes [Member]    
Notes, Fair Value 80,254 88,148
Senior Notes [Member] | The 13.5% 2026 Notes [Member] | Fair Value, Inputs, Level 1 [Member]    
Notes, Fair Value
Senior Notes [Member] | The 13.5% 2026 Notes [Member] | Fair Value, Inputs, Level 2 [Member]    
Notes, Fair Value 88,148
Senior Notes [Member] | The 13.5% 2026 Notes [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value 80,254
Senior Notes [Member] | The 5.0% 2040 Notes [Member]    
Notes, Fair Value 31,993 35,628
Senior Notes [Member] | The 5.0% 2040 Notes [Member] | Fair Value, Inputs, Level 1 [Member]    
Notes, Fair Value
Senior Notes [Member] | The 5.0% 2040 Notes [Member] | Fair Value, Inputs, Level 2 [Member]    
Notes, Fair Value 35,628
Senior Notes [Member] | The 5.0% 2040 Notes [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value 31,993
Unsecured Senior Term Loan [Member] | Senior Unsecured Term Loan Credit Facility Due 2027 [Member]    
Notes, Fair Value 106,499 114,328
Unsecured Senior Term Loan [Member] | Senior Unsecured Term Loan Credit Facility Due 2027 [Member] | Fair Value, Inputs, Level 1 [Member]    
Notes, Fair Value
Unsecured Senior Term Loan [Member] | Senior Unsecured Term Loan Credit Facility Due 2027 [Member] | Fair Value, Inputs, Level 2 [Member]    
Notes, Fair Value
Unsecured Senior Term Loan [Member] | Senior Unsecured Term Loan Credit Facility Due 2027 [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value $ 106,499 $ 114,328