XML 15 R46.htm IDEA: XBRL DOCUMENT v2.4.1.9
FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Level 3 Valuation Inputs) (Details) (FY 2015 Acquisition [Member], Fair Value, Inputs, Level 3 [Member])
6 Months Ended
Apr. 30, 2015
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]  
Fair Value Inputs, Discount Rate 2.20%us-gaap_FairValueInputsDiscountRate
Minimum [Member]
 
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]  
Negative Long-term Revenue Growth Rate (7.00%)hei_NegativeLongtermRevenueGrowthRate
/ us-gaap_BusinessAcquisitionAxis
= hei_FY2015AcquisitionMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member]
 
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]  
Fair Value Inputs, Long-term Revenue Growth Rate 12.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_BusinessAcquisitionAxis
= hei_FY2015AcquisitionMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember