XML 54 R43.htm IDEA: XBRL DOCUMENT v3.7.0.1

FAIR VALUE MEASUREMENTS (Fair Value Hierarchy, by Category) (Details) - USD ($) $ in Thousands	Apr. 30, 2017	Oct. 31, 2016
Deferred Compensation Plans [Abstract]
Deferred compensation plans	$ 112,385	$ 93,202
Liabilities:
Contingent consideration	19,671	18,881
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	5,998	7,148
Liabilities:
Contingent consideration	0	0
Significant Other Observable Inputs (Level 2) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	106,387	86,054
Liabilities:
Contingent consideration	0	0
Significant Unobservable Inputs (Level 3) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Liabilities:
Contingent consideration	19,671	18,881
Corporate Owned Life Insurance [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	106,337	86,004
Corporate Owned Life Insurance [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Corporate Owned Life Insurance [Member] | Significant Other Observable Inputs (Level 2) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	106,337	86,004
Corporate Owned Life Insurance [Member] | Significant Unobservable Inputs (Level 3) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Money Market Funds [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	559	2,515
Money Market Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	559	2,515
Money Market Funds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Money Market Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Equity Securities [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	2,286	1,832
Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	2,286	1,832
Equity Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Equity Funds [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	1,925	1,758
Equity Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	1,925	1,758
Equity Funds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Equity Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	0	0
Other Defined Deferred Compensation Plan [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	1,278	1,093
Other Defined Deferred Compensation Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	1,228	1,043
Other Defined Deferred Compensation Plan [Member] | Significant Other Observable Inputs (Level 2) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	50	50
Other Defined Deferred Compensation Plan [Member] | Significant Unobservable Inputs (Level 3) [Member]
Deferred Compensation Plans [Abstract]
Deferred compensation plans	$ 0	$ 0

X

- Definition

Deferred Compensation Plans [Abstract]

+ References

No definition available.

+ Details

Name:	hei_DeferredCompensationPlansAbstract
Namespace Prefix:	hei_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DeferredCompensationPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_LiabilitiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	hei_DeferredCompensationPlanAssetCategoriesAxis=hei_CorporateOwnedLifeInsuranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	hei_DeferredCompensationPlanAssetCategoriesAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	hei_DeferredCompensationPlanAssetCategoriesAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	hei_DeferredCompensationPlanAssetCategoriesAxis=us-gaap_EquityFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	hei_DeferredCompensationPlanAssetCategoriesAxis=hei_OtherDefinedDeferredCompensationPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: