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ACQUISITIONS (Details Textuals) $ in Thousands, € in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jul. 31, 2023 USD ($) | Apr. 30, 2023 | Jul. 31, 2022 USD ($) | Jul. 31, 2023 USD ($) | Jul. 31, 2022 USD ($) | Jul. 31, 2023 EUR (€)
Business Acquisition [Line Items] |  |  |  |  |  |
Revenues | $ 722,902 |  | $ 569,528 | $ 2,031,658 | $ 1,598,684 |
ELT |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Name Of Acquired Product Line |  |  |  | Aircraft Emergency Locator Transmitter |  |
Description of Acquired Product Line |  |  |  | ELTs provide critical emergency transmission signals in the event of aircraft impact on land or water to enable first responders to locate the aircraft. |  |
ELT |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Reason for Business Combination |  |  |  | The transaction provides the HEICO Electronic subsidiary with all rights to produce, sell and repair both fixed and portable Honeywell ELTs, as well as various support equipment. |  |
Exxelia |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  | 5.18% |  |
Revenues | $ 58,400 |  |  | $ 128,000 |  |
Exxelia | Customer Relationships [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |  | 15 years |  | 15 years
Exxelia | Intellectual Property [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |  | 15 years |  | 15 years
Exxelia | Related Party |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Related Party Transaction, Terms and Manner of Settlement |  |  |  | HEICO issued Exxelia a ten-year, €150 million note, which accrues interest at 4.7% per annum on the principal outstanding. |  |
Loans and Leases Receivable, Related Parties | € |  |  |  |  |  | € 150
Related Party Transaction, Rate |  |  |  | 4.70% |  |
Heico Electronic Technologies Corp | Exxelia |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Name of Acquired Entity |  |  |  | Exxelia International SAS |  |
Description of Acquired Entity |  |  |  | Exxelia designs, manufactures and sells high reliability (“Hi-Rel”), complex, passive electronic components and rotary joint assemblies for mostly aerospace and defense applications, in addition to other high-end applications, such as medical and energy uses, including emerging “clean energy” and electrification applications. |  |
Business Combination, Reason for Business Combination |  |  |  | The Company believes that this acquisition will further HEICO's strategy of expanding its already wide range of mission-critical and Hi-Rel components for the most demanding applications, as well as provide HEICO with added broad geographic and product diversity, including in the important European market. |  |
Business Acquisition, Percentage of Voting Interests Acquired | 93.69% |  |  | 93.69% |  | 93.69%
Business Acquisition, Transaction Costs | $ 5,100 |  |  | $ 5,100 |  |
Heico Electronic Technologies Corp | Exxelia | Existing Management |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 6.31% |  |  | 6.31% |  | 6.31%
Percent of ownership sold during the period |  | 2.72% |  |  |  |
Heico Electronic Technologies Corp | Exxelia | Exxelia |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 90.97% |  |  | 90.97% |  | 90.97%
Heico Electronic Technologies Corp | Alcon |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Name of Acquired Entity |  |  |  | Alcon Electronics Pvt. Ltd. |  |
Business Acquisition, Percentage of Voting Interests Acquired | 90.00% |  |  | 90.00% |  | 90.00%
Heico Electronic Technologies Corp | Alcon | Existing Management |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 10.00% |  |  | 10.00% |  | 10.00%

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