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CAPITAL STOCK (Narrative) (Details) (USD $)
12 Months Ended
Mar. 28, 2015
Mar. 29, 2014
Mar. 30, 2013
Oct. 22, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock compensation expense $ 14,095,000us-gaap_ShareBasedCompensation $ 13,081,000us-gaap_ShareBasedCompensation $ 10,969,000us-gaap_ShareBasedCompensation  
Stock-based compensation expense recognized   13,100,000us-gaap_AllocatedShareBasedCompensationExpense 11,000,000us-gaap_AllocatedShareBasedCompensationExpense  
Income tax benefit recognized related to stock-based compensation 4,500,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense 4,300,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense 3,500,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense  
Excess tax benefit on exercise of stock options 1,569,000us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities 2,395,000us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities 4,101,000us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities  
Performance shares target, percentage 100.00%hae_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceTarget      
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding (in shares) 3,761,666us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
3,834,372us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
   
Total intrinsic value of options exercised 5,600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
11,700,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
20,900,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Total unrecognized compensation cost related to non vested awards 9,200,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
     
Total unrecognized compensation cost related to non vested stock options, weighted average period of recognition (in years) 2 years 4 months 13 days      
Weighted average grant date fair value of options granted (in dollars per share) $ 7.91us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
$ 10.15us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
$ 9.76us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Annual unvested stock option forfeiture rate (as a percent) 8.00%hae_AnnualUnvestedStockOptionForfeitureRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
8.00%hae_AnnualUnvestedStockOptionForfeitureRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
   
Market Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity instruments other than options outstanding (in shares) 287,682us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= hae_MarketStockUnitsMember
     
Total unrecognized compensation cost related to non vested awards 11,200,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= hae_MarketStockUnitsMember
     
Weighted Average Market Value at Grant Date (in dollars per share), Beginning Balance $ 37.42us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= hae_MarketStockUnitsMember
     
Performance Share Units (PSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares available for award (in shares) 863,046us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Weighted Average Market Value at Grant Date (in dollars per share), Awarded $ 85us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Stock compensation expense 662,000us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Total unrecognized compensation cost related to non vested awards 3,869,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Number of senior executives 14hae_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSeniorExecutives
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Performance Shares Threshold $ 50hae_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceSharesThreshold
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Performance Shares Received Below Threshold 0hae_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceSharesReceivedBelowThreshold
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Performance Shares Target Multiplier 3hae_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceSharesTargetMultiplier
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Weighted Average Market Value at Grant Date (in dollars per share), Beginning Balance       $ 35.09us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
Target Shares (in shares) 129,130hae_SharebasedCompensationArrangementbySharebasedPaymentAwardTargetShares
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized compensation cost related to non vested awards $ 13,200,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
     
Total unrecognized compensation cost related to non vested stock options, weighted average period of recognition (in years) 2 years 4 months 13 days      
Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Performance shares target, percentage 0.00%hae_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceTarget
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
     
Minimum | Performance Share Units (PSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Target Shares (in shares) 0hae_SharebasedCompensationArrangementbySharebasedPaymentAwardTargetShares
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
     
Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Performance shares target, percentage 200.00%hae_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceTarget
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
     
Maximum | Performance Share Units (PSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Target Shares (in shares) 258,260hae_SharebasedCompensationArrangementbySharebasedPaymentAwardTargetShares
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
     
Long-term Incentive Plan 2000 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares available for award (in shares) 7,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= hae_LongTermIncentivePlan2000Member
     
Long-term Incentive Plan 2000 [Member] | Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares available for grant (in shares) 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= hae_LongTermIncentivePlan2000Member
     
Options outstanding (in shares) 55,750us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= hae_LongTermIncentivePlan2000Member
     
Incentive Compensation Plan 2005 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of members on board of directors (in board members) 3hae_NumberOfMembersOnBoardOfDirectors
/ us-gaap_PlanNameAxis
= hae_IncentiveCompensationPlan2005Member
     
Maximum number of shares available for award (in shares) 15,024,920us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= hae_IncentiveCompensationPlan2005Member
     
Maximum number of shares available for grant (in shares) 999,243us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= hae_IncentiveCompensationPlan2005Member
     
Number of equity instruments other than options counted against maximum number of award shares for every share granted (in shares) 3.26hae_NumberOfEquityInstrumentsOtherThanOptionsCountedAgainstMaximumNumberOfAwardSharesForEveryShareGranted
/ us-gaap_PlanNameAxis
= hae_IncentiveCompensationPlan2005Member
     
Maximum number of years from grant date that options expire (in years) 7 years      
Incentive Compensation Plan 2005 [Member] | Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares available for award (in shares) 500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= hae_IncentiveCompensationPlan2005Member
     
Number of options counted against maximum number of award shares for every share option issued (in shares) 1hae_NumberOfOptionsCountedAgainstMaximumNumberOfAwardShares
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= hae_IncentiveCompensationPlan2005Member
     
Incentive Compensation Plan 2005 [Member] | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Period in which awards become exercisable for employees (in years) 4 years      
Period after grant that awards become exercisable for non-employee directors (in years) 1 year      
Equity instruments other than options outstanding (in shares) 357,547us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= hae_IncentiveCompensationPlan2005Member
     
Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares available for award (in shares) 1,400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= hae_EmployeeStockPurchasePlanMember
     
Number of purchase periods (in purchase periods) 2hae_NumberOfPurchasePeriods
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= hae_EmployeeStockPurchasePlanMember
     
Percentage of purchase price for shares of common stock at fair market value (as a percent) 85.00%hae_PercentageOfPurchasePriceForSharesOfCommonStockAtFairMarketValue
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= hae_EmployeeStockPurchasePlanMember
     
Weighted average grant date fair value of the six-month option inherent in the Purchase Plan (in dollars per share) $ 7.09hae_WeightedAverageGrantDateFairValueOfSixMonthOptionInherentInPurchasePlan
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= hae_EmployeeStockPurchasePlanMember
$ 8.25hae_WeightedAverageGrantDateFairValueOfSixMonthOptionInherentInPurchasePlan
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= hae_EmployeeStockPurchasePlanMember
$ 8.50hae_WeightedAverageGrantDateFairValueOfSixMonthOptionInherentInPurchasePlan
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= hae_EmployeeStockPurchasePlanMember
 
Employee Stock Purchase Plan [Member] | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of shares purchased through payroll deductions (as a percent) 2.00%hae_PercentageOfSharesPurchasedThroughPayrollDeductions
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= hae_EmployeeStockPurchasePlanMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
     
Employee Stock Purchase Plan [Member] | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of shares purchased through payroll deductions (as a percent) 15.00%hae_PercentageOfSharesPurchasedThroughPayrollDeductions
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= hae_EmployeeStockPurchasePlanMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember