Subsequent Events	12 Months Ended
Oct. 31, 2024
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTIn November 2024, the Company, through HEICO Electronic, acquired 70% of the stock of SVM Private Limited (“SVM”). SVM designs and manufactures high-performance electronic passive components and subsystems, including critical magnetic components and busbars, that serve the healthcare and industrial end-markets. The remaining 30% interest continues to be owned by certain members of SVM's management team. The purchase price of this acquisition was paid in cash using cash provided by operating activities and is not material or significant to the Company's 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://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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