Annual report pursuant to Section 13 and 15(d)

Product Information - Summary of Segment Percentages (Details)

v3.19.1
Product Information - Summary of Segment Percentages (Details) - Sales Revenue, Product Line - Product Concentration Risk - Base USAP
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Segment Reporting Information [Line Items]    
Concentration risk percentage 100.00% 100.00%
Private Label Collision    
Segment Reporting Information [Line Items]    
Concentration risk percentage 57.00% 54.00%
Private Label Engine    
Segment Reporting Information [Line Items]    
Concentration risk percentage 18.00% 18.00%
Private Label Performance    
Segment Reporting Information [Line Items]    
Concentration risk percentage 1.00% 1.00%
Branded Collision    
Segment Reporting Information [Line Items]    
Concentration risk percentage 1.00% 2.00%
Branded Engine    
Segment Reporting Information [Line Items]    
Concentration risk percentage 11.00% 10.00%
Branded Performance    
Segment Reporting Information [Line Items]    
Concentration risk percentage 12.00% 15.00%