ACQUISITIONS (Details Textuals) $ in Thousands	6 Months Ended
Apr. 30, 2022 USD ($)
Heico Flight Support Corp \| Pioneer
Business Acquisition [Line Items]
Name of Acquired Entity	Pioneer Industries, LLC
Description of Acquired Entity	Pioneer is a specialty distributor of spares for military aviation, marine, and ground platforms.
Business Acquisition, Percentage of Voting Interests Acquired	74.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 9,800
Heico Flight Support Corp \| Pioneer \| Existing Management
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	26.00%
Heico Electronic Technologies Corp \| Flight Microwave
Business Acquisition [Line Items]
Name of Acquired Entity	Flight Microwave Corporation
Description of Acquired Entity	Flight Microwave is a designer and manufacturer of custom high power filters and filter assemblies used in space and defense applications.
Business Acquisition, Percentage of Voting Interests Acquired	100.00%

With respect to a business combination completed during the period, this element provides a description of the business, other than the name, which may include the industry, size, products and other important information.

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Name of the acquired entity.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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