SUBSEQUENT EVENT SUBSEQUENT EVENT	9 Months Ended
Jul. 31, 2018
Subsequent Events [Abstract]
Subsequent Event, Pro Forma Business Combinations or Disposals [Text Block]	SUBSEQUENT EVENTIn August 2018, the Company, through a subsidiary of HEICO Flight Support Corp., acquired 100% of the business and assets of Optical Display Engineering ("ODE"). ODE is a Federal Aviation Administration ("FAA")-authorized Part 145 Repair Station focusing on the repair of LCD screens and display modules for aviation displays used in civilian and military aircraft. ODE also holds FAA-Parts Manufacturer Approval authority to supply products that it repairs. The purchase price of this acquisition was paid in cash, principally using cash provided by operating activities and the total consideration for the acquisition is not material or significant to the Company’s condensed consolidated financial statements.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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