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Note 9 - Senior Notes and Credit Facilities - Senior Notes and Credit Facilities Balances (Details) - USD ($)
Oct. 31, 2018
Oct. 31, 2017
Senior debt [1] $ 1,493,257,000  
Senior Secured Term Loan [Member]    
Long-term Line of Credit, Total [2],[3] $ 72,987,000
Senior Secured Notes [Member]    
Senior debt [2],[3] 1,093,423,000 1,090,636,000
Senior Secured Notes [Member] | The 9.50% 2020 Notes [Member]    
Senior debt [2],[3] 74,561,000 74,350,000
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member]    
Senior debt [2],[3] 53,094,000 53,058,000
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member]    
Senior debt [2],[3] 135,571,000 133,732,000
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member]    
Senior debt [2],[3] 435,461,000 434,543,000
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member]    
Senior debt [2],[3] 394,736,000 394,953,000
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]    
Senior debt [2],[3] 144,426,000 366,250,000
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member] | The 7.0% 2019 Notes [Member]    
Senior debt [2],[3] 131,957,000
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member] | The 8.0% Senior Notes Due 2019 [Member]    
Senior debt [2],[3],[4] 234,293,000
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member] | Thirteen and a Half Percent Senior Notes Due 2026 [Member]    
Senior debt [2],[3] 101,162,000
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member] | Five Percent Senior Notes due 2040 [Member]    
Senior debt [2],[3] 43,264,000
Senior Amortizing Notes [Member] | The 11.0% 2017 Amortizing Note [Member]    
Senior debt [2],[3] 2,045,000
Senior Amortizing Notes [Member] | Senior Exchangeable Notes Due 2017 [Member]    
Senior debt [2],[3] 53,919,000
Senior Unsecured Term Loan Credit Facility Due 2027 [Member]    
Long-term Line of Credit, Total 201,389
Unsecured Revolving Credit Facility [Member]    
Long-term Line of Credit, Total [2],[3] 52,000,000
Senior Secured Revolving Credit Facility [Member]    
Long-term Line of Credit, Total [2],[3],[5]
[1] Does not include our $125.0 million Senior Secured Revolving Credit Facility under which there were no borrowings outstanding as of October 31, 2018.
[2] "Notes payable" on our Consolidated Balance Sheets as of October 31, 2018 and 2017 consists of the total senior secured, senior, senior amortizing and senior exchangeable notes shown above, as well as accrued interest of $35.6 million and $41.8 million, respectively.
[3] Unamortized debt issuance costs at October 31, 2018 and 2017 were $14.1 million and $16.1 million, respectively.
[4] $26.0 million of 8.0% Senior Notes due 2019 are owned by a wholly-owned consolidated subsidiary of HEI. Therefore, in accordance with GAAP, such notes are not reflected on the Consolidated Balance Sheets of HEI.
[5] Availability under the Senior Secured Revolving Credit Facility will terminate on December 28, 2019 and any loans thereunder on such date shall convert to secured term loans maturing on December 28, 2022.