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Taxes - Additional Information (Detail) (USD $) | 12 Months Ended
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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 | $ 200,000 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount | $ 900,000 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount | $ 1,600,000 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Valuation allowance released | 2,600,000 kors_ValuationAllowanceReleasedPortion | 1,600,000 kors_ValuationAllowanceReleasedPortion | 1,100,000 kors_ValuationAllowanceReleasedPortion
Accrued liability for uncertain tax positions | 21,200,000 us-gaap_LiabilityForUncertainTaxPositionsNoncurrent | 19,000,000 us-gaap_LiabilityForUncertainTaxPositionsNoncurrent |
Unrecognized tax benefits | 19,885,000 us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate | 18,087,000 us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate | 6,628,000 us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Interest recognized | 1,300,000 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued | 900,000 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued | 300,000 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Undistributed earnings | 1,955,000,000 us-gaap_UndistributedEarningsOfForeignSubsidiaries |  |
Foreign Tax Authority |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | $ 23,200,000 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember |  |
Operating loss carry forward expiration year | 2017 |  |

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 + Details
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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