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Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Mar. 28, 2015
Mar. 29, 2014
Mar. 30, 2013
Income Tax [Line Items]      
U.S. Statutory federal income tax rate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Increase in deferred tax valuation allowance $ 200,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount $ 900,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount $ 1,600,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Valuation allowance released 2,600,000kors_ValuationAllowanceReleasedPortion 1,600,000kors_ValuationAllowanceReleasedPortion 1,100,000kors_ValuationAllowanceReleasedPortion
Accrued liability for uncertain tax positions 21,200,000us-gaap_LiabilityForUncertainTaxPositionsNoncurrent 19,000,000us-gaap_LiabilityForUncertainTaxPositionsNoncurrent  
Unrecognized tax benefits 19,885,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 18,087,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 6,628,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Interest recognized 1,300,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued 900,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued 300,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Undistributed earnings 1,955,000,000us-gaap_UndistributedEarningsOfForeignSubsidiaries    
Foreign Tax Authority      
Income Tax [Line Items]      
Net operating loss carryforwards $ 23,200,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember		    
Operating loss carry forward expiration year 2017