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Note 11 - Senior Notes and Credit Facilities - Senior Notes and Credit Facilities Balances (Details) - USD ($)
$ in Thousands
Apr. 30, 2019
Oct. 31, 2018
Senior Secured Notes [Member]    
Senior debt [1],[2] $ 1,116,752 $ 1,093,423
Senior Secured Notes [Member] | The 9.50% 2020 Notes [Member]    
Senior debt [1],[2] 74,666 74,561
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member]    
Senior debt [1],[2] 53,112 53,094
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member]    
Senior debt [1],[2] 136,533 135,571
Senior Secured Notes [Member] | The 10.0% 2022 Notes [Member]    
Senior debt [1],[2] 436,066 435,461
Senior Secured Notes [Member] | The 10.5% 2024 Notes [Member]    
Senior debt [1],[2] 416,375 394,736
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]    
Senior debt [1],[2] 144,251 144,426
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member] | The 8.0% Senior Notes Due 2019 [Member]    
Senior debt [1],[2],[3]
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member] | The 13.5% Senior Notes Due 2026 [Member]    
Senior debt [1],[2] 100,687 101,162
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member] | The 5.0% Senior Notes due 2040 [Member]    
Senior debt [1],[2] 43,564 43,264
Senior Unsecured Term Loan Credit Facility Due 2027 [Member]    
Long-term Line of Credit, Total 201,459 $ 201,389
Senior Secured Revolving Credit Facility [Member]    
Long-term Line of Credit, Total [1],[2],[4]  
[1] "Notes payable" on our Condensed Consolidated Balance Sheets as of April 30, 2019 and October 31, 2018 consists of the total senior secured and senior notes shown above, as well as accrued interest of $37.9 million and $35.6 million, respectively.
[2] Unamortized debt issuance costs at April 30, 2019 and October 31, 2018 were $13.0 million and $14.1 million, respectively.
[3] $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 Condensed Consolidated Balance Sheets of HEI.
[4] Availability under the Secured Credit Facility will terminate on December 28, 2019 and any loans thereunder on such date will convert to secured term loans maturing on December 28, 2022.