Carrying value as of the balance sheet date of accrued customer rebates and credits.

No definition available.

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- Definition

The total customer rebates and credits expense deducted within net sales.

+ References

No definition available.

+ Details

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- Definition

Selected Financial Statement Information (Details) [Abstract]

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

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- Details

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SELECTED FINANCIAL STATEMENT INFORMATION (Details Textuals) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2017	Oct. 31, 2016	Oct. 31, 2011
Selected Financial Statement Information (Details) [Abstract]
Accrued customer rebates and credits	$ 11.9		$ 11.9			$ 11.9
Total customer rebates and credits deducted within net sales	$ 2.7	$ 3.1	$ 8.1	$ 8.3
Flight Support Group [Member] \| FY 2011 Acquisition [Member]
Business Acquisition [Line Items]
Percentage of Voting Interests Acquired					9.95%
Ownership Percentage by Parent							80.10%
Ownership Percentage by Noncontrolling Owners							19.90%
Heico Flight Support Corp [Member] \| A2C [Member]
Business Acquisition [Line Items]
Percentage of Voting Interests Acquired	80.10%		80.10%
Ownership Percentage by Noncontrolling Owners	19.90%		19.90%
Heico Flight Support Corp [Member] \| Flight Support Group [Member] \| A2C [Member]
Business Acquisition [Line Items]
Percentage of Voting Interests Acquired	80.10%		80.10%