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Summary of Quarterly Results of Operations (Unaudited) - Narrative - Significant Items for Fiscal 2016 (Details) - USD ($) $ in Millions | 3 Months Ended
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Apr. 30, 2016 | Jan. 30, 2016 | Oct. 31, 2015 | Aug. 01, 2015
Hetronic Lawsuit |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Legal expenses | $ 3.3 | $ 2.7 | $ 2.7 | $ 1.2

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- Definition The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + 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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- Details
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