SHAREHOLDERS' EQUITY SHAREHOLDERS' EQUITY (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Cash dividends per share (in dollars per share)	$ 0.060	$ 0.056	$ 0.470	$ 1.816
Dividends, Common Stock, Cash			$ 27,200,000
Special Dividend [Member]
Cash dividends per share (in dollars per share)			$ 0.35
Regular Semi-Annual Dividend [Member]
Cash dividends per share (in dollars per share)			$ 0.06
Specialty Products and Distribution Group [Member]
Business Acquisition, Effective Date of Acquisition			Feb. 18, 2014
Business Acquisition, Percentage of Voting Interests Acquired	20.00%		20.00%
Business Combination, Consideration Transferred			$ 67,400,000
Heico Aerospace Holdings Corp. [Member]
Noncontrolling Interest, Ownership Percentage by Parent	80.00%		80.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	20.00%		20.00%
Heico Aerospace Holdings Corp1 [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	20.00%		20.00%