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Basis of Presentation (Details)
 3 Months Ended
Apr. 04, 2015
supply_centers
distributors
facilities
Oct. 13, 2010
Entity Information [Line Items]    
Number of manufacturing facilities 11side_ManufacturingFacilities  
Contractor customers 50,000side_Contractorcustomers  
Company Owned Supply Centers 126side_CompanyOwnedSupplyCenters  
Independent distributors 275side_Independentdistributors  
Associated Materials, LLC    
Entity Information [Line Items]    
Entity ownership percentage   100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= side_AssociatedMaterialsLlcMember
Hellman & Friedman LLC Affiliated Investment Funds    
Entity Information [Line Items]    
Entity ownership percentage 97.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= side_HellmanFriedmanLlcAffiliatedInvestmentFundsMember