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Derivatives - Derivatives not Designated as Hedging Instruments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Oct. 28, 2017 | Oct. 29, 2016 | Oct. 28, 2017 | Oct. 29, 2016
Not Designated as Hedging Instrument | Foreign currency contracts | Other Income |  |  |  |
Derivative [Line Items] |  |  |  |
Foreign currency contracts not designated as hedging | $ (0.1) | $ 1.6 | $ 3.1 | $ 3.2

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- 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
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