ACQUISITIONS	3 Months Ended
Jan. 31, 2018
Business Combinations [Abstract]
Acquisitions [Text Block]	ACQUISITION In November 2017, the Company, through a subsidiary of HEICO Electronic, acquired all the stock of Interface Displays & Controls, Inc. ("IDC"). IDC designs and manufactures electronic products for aviation, marine, military fighting vehicles, and embedded computing markets. The purchase price of this acquisition was paid using cash provided by operating activities. The total consideration for the acquisition of IDC is not material or significant to the Company’s condensed consolidated financial statements and the related allocation to the tangible and identifiable intangible assets acquired and liabilities assumed is preliminary until the company obtains final information regarding their fair values. The operating results of IDC were included in the Company’s results of operations from the effective acquisition date. The amount of net sales and earnings of IDC included in the Condensed Consolidated Statement of Operations for the three months ended January 31, 2018 is not material. Had the IDC acquisition been consummated as of November 1, 2016, net sales, net income from consolidated operations, net income attributable to HEICO, and basic and diluted net income per share attributable to HEICO shareholders on a pro forma basis for the three months ended January 31, 2018 and 2017 would not have been materially different than the reported amounts.

ACQUISITION

In November 2017, the Company, through a subsidiary of HEICO Electronic, acquired all the stock of Interface Displays & Controls, Inc. ("IDC"). IDC designs and manufactures electronic products for aviation, marine, military fighting vehicles, and embedded computing markets. The purchase price of this acquisition was paid using cash provided by operating activities.

The total consideration for the acquisition of IDC is not material or significant to the Company’s condensed consolidated financial statements and the related allocation to the tangible and identifiable intangible assets acquired and liabilities assumed is preliminary until the company obtains final information regarding their fair values. The operating results of IDC were included in the Company’s results of operations from the effective acquisition date. The amount of net sales and earnings of IDC included in the Condensed Consolidated Statement of Operations for the three months ended January 31, 2018 is not material. Had the IDC acquisition been consummated as of November 1, 2016, net sales, net income from consolidated operations, net income attributable to HEICO, and basic and diluted net income per share attributable to HEICO shareholders on a pro forma basis for the three months ended January 31, 2018 and 2017 would not have been materially different than the reported amounts.