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Note 19 - Fair Value of Financial Instruments - Fair Value of Notes (Details) - USD ($)
$ in Thousands
Jul. 31, 2019
Oct. 31, 2018
Notes, Fair Value $ 1,190,357 $ 1,268,959
Fair Value, Inputs, Level 1 [Member]    
Notes, Fair Value
Fair Value, Inputs, Level 2 [Member]    
Notes, Fair Value 852,281 1,039,947
Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value 338,076 229,012
Senior Secured Notes [Member] | 9.5% Senior Secured Notes Due 2020 [Member]    
Notes, Fair Value 73,500 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 73,500 74,250
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member]    
Notes, Fair Value 47,351 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 47,351 40,434
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member]    
Notes, Fair Value 135,558 124,781
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 135,558 124,781
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member]    
Notes, Fair Value 376,200 424,670
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 376,200 424,670
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member]    
Notes, Fair Value 340,523 366,720
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 340,523 366,720
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member] | Fair Value, Inputs, Level 3 [Member]    
Notes, Fair Value
Senior Notes [Member] | The 13.5% 2026 Notes [Member]    
Notes, Fair Value 81,114 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 81,114
Senior Notes [Member] | The 5.0% 2040 Notes [Member]    
Notes, Fair Value 32,669 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 32,669
Unsecured Senior Term Loan [Member] | Senior Unsecured Term Loan Credit Facility Due 2027 [Member]    
Notes, Fair Value 103,442 114,328
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 $ 103,442 $ 114,328