ACQUISITIONS (Details Textuals) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended		1 Months Ended			1 Months Ended
	Jan. 31, 2012	Oct. 31, 2011	Oct. 31, 2010	Nov. 30, 2011 Switchcraft Inc [Member]	Dec. 31, 2010 Blue Aerospace [Member]	Oct. 31, 2011 Blue Aerospace [Member]	Sep. 30, 2011 3D Plus SA [Member]
Restructuring Cost and Reserve [Line Items]
Date on which the acquirer obtains control of the acquiree				November 22, 2011	December 31, 2010		September 30, 2011
Name of the entity in which interest is owned				Switchcraft, Inc.	Blue Aerospace LLC.		3D Plus SA
Description of the acquired entity				Switchcraft is a leading designer and manufacturer of high performance, high reliability and harsh environment electronic connectors and other interconnect products.	Blue Aerospace is a supplier, distributor, and integrator of military aircraft parts and support services primarily to foreign military organizations allied with the United States.		3D Plus is a leading designer and manufacturer of three-dimensional microelectronic and stacked memory products used predominately in satellites and also utilized in medical equipment.
Net Sales	$ 10.7
Net income attributable to HEICO	0.9
Business Acquisition, Cost of Acquired Entity, Purchase Price	142
Acquisition of interest in the subsidiary						80.10%
Percentage of interest owned by noncontrolling shareholders						19.90%
Payments For Previous Acquisition		6.6
Accrued additional purchase consideration			$ 4.1