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Segment Reporting (Narrative) (Details)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Segment Reporting Information    
Number of reportable segments 2us-gaap_NumberOfReportableSegments  
RV Segment    
Segment Reporting Information    
Consolidated net sales, percentage 93.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= dw_RVSegmentMember		 91.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= dw_RVSegmentMember
Travel Trailer And Fifth-Wheels | Sales Revenue, Net    
Segment Reporting Information    
Net sales from RV aftermarket (percentage) 78.00%dw_PercentageOfNetSalesFromBusinessSegmentComponents
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_StatementBusinessSegmentsAxis
= dw_TravelTrailerAndFifthWheelsMember		  
MH Segment    
Segment Reporting Information    
Consolidated net sales, percentage 7.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= dw_MHSegmentMember		 9.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= dw_MHSegmentMember
Product Concentration Risk | Manufactured Housing OEMs | Sales Revenue, Net    
Segment Reporting Information    
Consolidated net sales, percentage 7.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_ProductConcentrationRiskMember
/ us-gaap_StatementBusinessSegmentsAxis
= dw_ManufacturedHousingOemsMember