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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) | 12 Months Ended
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Mar. 28, 2015 | Mar. 29, 2014 | Mar. 30, 2013
Significant Accounting Policies [Line Items] |  |  |
Advertising and marketing expense | $ 103,600,000 us-gaap_MarketingAndAdvertisingExpense | $ 65,700,000 us-gaap_MarketingAndAdvertisingExpense | $ 41,900,000 us-gaap_MarketingAndAdvertisingExpense
Cooperative advertising Expenses | 8,000,000 us-gaap_CooperativeAdvertisingExpense | 7,300,000 us-gaap_CooperativeAdvertisingExpense | 5,100,000 us-gaap_CooperativeAdvertisingExpense
Shipping and handling costs | 92,600,000 us-gaap_ShippingHandlingAndTransportationCosts | 78,600,000 us-gaap_ShippingHandlingAndTransportationCosts | 29,100,000 us-gaap_ShippingHandlingAndTransportationCosts
Credit card receivables | 15,800,000 us-gaap_CreditCardReceivables | 16,000,000 us-gaap_CreditCardReceivables |
Impairment charges | 0 us-gaap_GoodwillImpairmentLoss | 0 us-gaap_GoodwillImpairmentLoss | 0 us-gaap_GoodwillImpairmentLoss
Non-recourse loan to sole joint venture | 0 us-gaap_PaymentsForAdvanceToAffiliate | 0 us-gaap_PaymentsForAdvanceToAffiliate | 6,000,000 us-gaap_PaymentsForAdvanceToAffiliate
Non-recourse loan annual rate |  |  | 5.00%us-gaap_RelatedPartyTransactionRate
Forward contracts term, maximum | 12 months |  |
Deferred finance cost | 2,100,000 us-gaap_DeferredFinanceCostsNet | 2,900,000 us-gaap_DeferredFinanceCostsNet |
Accumulated amortization of deferred finance cost | $ 3,600,000 us-gaap_AccumulatedAmortizationDeferredFinanceCosts | $ 2,800,000 us-gaap_AccumulatedAmortizationDeferredFinanceCosts |
Anti-dilutive securities excluded from computation of earning per share captured in the above table per client request. | 699,321 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 44,256 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 7,341 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Equipment, Furniture And Fixtures | Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 5 years |  |
Equipment, Furniture And Fixtures | Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 7 years |  |
Computer Hardware And Software | Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 3 years |  |
Computer Hardware And Software | Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 5 years |  |
In-Store Shops | Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 3 years |  |
In-Store Shops | Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 4 years |  |
Software Development |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 5 years |  |
Trademarks |  |  |
Significant Accounting Policies [Line Items] |  |  |
Intangible asset, useful life | 20 years |  |
Stock Options |  |  |
Significant Accounting Policies [Line Items] |  |  |
Share-based compensation, contractual term | 7 years |  |
Share-based compensation, vesting period | 4 years |  |
Stock Options | Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Share-based compensation, contractual term | 9 years |  |
Share-based compensation, holding period | 4 years 6 months |  |
Stock Options | Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Share-based compensation, contractual term | 10 years |  |
Share-based compensation, holding period | 4 years 9 months |  |

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