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Restructuring Activities (Restructuring Rollforward) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 03, 2015
Dec. 28, 2013
Dec. 29, 2012
Restructuring Reserve [Roll Forward]      
Restructuring costs - COGS $ 1.0us-gaap_RestructuringCharges $ 7.6us-gaap_RestructuringCharges $ 0us-gaap_RestructuringCharges
Restructuring costs - SG&A 26.0us-gaap_OtherRestructuringCosts 0.7us-gaap_OtherRestructuringCosts 0us-gaap_OtherRestructuringCosts
Cash payments related to restructuring costs (7.7)us-gaap_PaymentsForRestructuring (1.4)us-gaap_PaymentsForRestructuring 0us-gaap_PaymentsForRestructuring
Consumer Direct Operations [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring reserve, Beginning balance 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Restructuring costs - SG&A 21.2us-gaap_OtherRestructuringCosts
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Cash payments related to restructuring costs (5.0)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Charges against assets (8.7)us-gaap_RestructuringReserveSettledWithoutCash1
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Restructuring reserve, Ending balance 7.5us-gaap_RestructuringReserve
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Manufacturing Operations [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring reserve, Beginning balance 0.5us-gaap_RestructuringReserve
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
0us-gaap_RestructuringReserve
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Restructuring costs - COGS 1.0us-gaap_RestructuringCharges
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
7.6us-gaap_RestructuringCharges
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Cash payments related to restructuring costs (1.3)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
(1.4)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Charges against assets (0.2)us-gaap_RestructuringReserveSettledWithoutCash1
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
(5.7)us-gaap_RestructuringReserveSettledWithoutCash1
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Restructuring reserve, Ending balance 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
0.5us-gaap_RestructuringReserve
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Severance and employee related [Member] | Consumer Direct Operations [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring reserve, Beginning balance 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Restructuring costs - SG&A 2.6us-gaap_OtherRestructuringCosts
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Cash payments related to restructuring costs (1.6)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Restructuring reserve, Ending balance 1.0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Severance and employee related [Member] | Manufacturing Operations [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring reserve, Beginning balance 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Restructuring costs - COGS 0.1us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
1.4us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Cash payments related to restructuring costs (0.1)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
(1.4)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Charges against assets   0us-gaap_RestructuringReserveSettledWithoutCash1
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Restructuring reserve, Ending balance 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Impairment of property and equipment [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring costs - SG&A   0.7us-gaap_OtherRestructuringCosts
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_PropertyPlantAndEquipmentMember
 
Impairment of property and equipment [Member] | Consumer Direct Operations [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring reserve, Beginning balance 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_PropertyPlantAndEquipmentMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Restructuring costs - SG&A 5.5us-gaap_OtherRestructuringCosts
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_PropertyPlantAndEquipmentMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Charges against assets (5.5)us-gaap_RestructuringReserveSettledWithoutCash1
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_PropertyPlantAndEquipmentMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Restructuring reserve, Ending balance 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_PropertyPlantAndEquipmentMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Exit or disposal activities [Member] | Consumer Direct Operations [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring reserve, Beginning balance 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Restructuring costs - SG&A 13.1us-gaap_OtherRestructuringCosts
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Cash payments related to restructuring costs (3.4)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Charges against assets (3.2)us-gaap_RestructuringReserveSettledWithoutCash1
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Restructuring reserve, Ending balance 6.5us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ConsumerDirectOperationsMember
   
Exit or disposal activities [Member] | Manufacturing Operations [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring reserve, Beginning balance 0.5us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Restructuring costs - COGS 0.9us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
6.2us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Cash payments related to restructuring costs (1.2)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
0us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Charges against assets (0.2)us-gaap_RestructuringReserveSettledWithoutCash1
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
(5.7)us-gaap_RestructuringReserveSettledWithoutCash1
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
 
Restructuring reserve, Ending balance $ 0us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember
$ 0.5us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= www_FacilityExitCostsAndOtherRelatedRestructuringMember
/ us-gaap_RestructuringPlanAxis
= www_ManufacturingOperationsMember