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SHAREHOLDERS' EQUITY STOCKHOLDERS' EQUITY (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2013 | Jan. 31, 2013 | Jul. 31, 2012 | Jul. 31, 2013 | Jul. 31, 2012
Class of Stock [Line Items] |  |  |  |  |
Payments of Ordinary Dividends, Common Stock |  | $ 116,600,000 |  | $ 120,361,000 | $ 5,689,000
Common Stock, Dividends, Per Share, Cash Paid | $ 0.070 |  | $ 0.060 | $ 2.270 | $ 0.108
Special Dividend [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common Stock, Dividends, Per Share, Cash Paid |  | $ 2.14 |  |  |
Regular Semi-Annual Dividend [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common Stock, Dividends, Per Share, Cash Paid |  | $ 0.06 |  |  |
HEICO Common Stock [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Stock Repurchased During Period, Shares |  |  |  | 29,083 |
Stock Repurchased During Period, Value |  |  |  | 1,300,000 |
Class A Common Stock [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Stock Repurchased During Period, Shares |  |  |  | 31,972 |
Stock Repurchased During Period, Value |  |  |  | $ 1,100,000 |

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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