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Commitments and Contingencies (Details) - USD ($) $ in Millions |  | 3 Months Ended
--- | --- | ---
Jun. 06, 2017 | Apr. 28, 2017 | Jul. 29, 2016
Gain Contingencies [Line Items] |  |  |
Litigation Settlement, Amount Awarded from Other Party | $ 7.5 | $ 1.0 | $ 1.2

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_GainContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration