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Segment Reporting (Details)
3 Months Ended
May 02, 2015
segment
Segment reporting  
Number of reportable segments 2us-gaap_NumberOfReportableSegments
Retail Segment  
Segment reporting  
Number of operating segments 4us-gaap_NumberOfOperatingSegments
/ us-gaap_StatementBusinessSegmentsAxis
= mw_RetailSegmentMember
Corporate Apparel Segment  
Segment reporting  
Number of operating segments 2us-gaap_NumberOfOperatingSegments
/ us-gaap_StatementBusinessSegmentsAxis
= mw_CorporateApparelSegmentMember