Quarterly report pursuant to Section 13 or 15(d)

Revenues (Details)

v3.20.1
Revenues (Details)
$ in Thousands
3 Months Ended
Mar. 26, 2020
USD ($)
segment
Mar. 28, 2019
USD ($)
segment
Disaggregation of Revenue [Line Items]    
Number of reportable segments | segment 1 1
Number of operating segments | segment 1 1
Net Sales $ 554,937 $ 477,050
Revenue from Contract with Customer, Product and Service Benchmark [Member] | Product Concentration Risk [Member]    
Disaggregation of Revenue [Line Items]    
Net Sales $ 554,937 $ 477,050
% of Net Sales 100.00% 100.00%
Tile [Member] | Revenue from Contract with Customer, Product and Service Benchmark [Member] | Product Concentration Risk [Member]    
Disaggregation of Revenue [Line Items]    
Net Sales $ 134,912 $ 125,310
% of Net Sales 24.00% 26.00%
Laminate Luxury Vinyl Plank [Member] | Revenue from Contract with Customer, Product and Service Benchmark [Member] | Product Concentration Risk [Member]    
Disaggregation of Revenue [Line Items]    
Net Sales $ 124,994 $ 97,502
% of Net Sales 23.00% 20.00%
Decorative Accessories [Member] | Revenue from Contract with Customer, Product and Service Benchmark [Member] | Product Concentration Risk [Member]    
Disaggregation of Revenue [Line Items]    
Net Sales $ 113,597 $ 94,440
% of Net Sales 20.00% 20.00%
Installation Materials And Tools [Member] | Revenue from Contract with Customer, Product and Service Benchmark [Member] | Product Concentration Risk [Member]    
Disaggregation of Revenue [Line Items]    
Net Sales $ 94,576 $ 79,709
% of Net Sales 17.00% 17.00%
Wood Flooring [Member] | Revenue from Contract with Customer, Product and Service Benchmark [Member] | Product Concentration Risk [Member]    
Disaggregation of Revenue [Line Items]    
Net Sales $ 48,995 $ 49,230
% of Net Sales 9.00% 10.00%
Natural Stone [Member] | Revenue from Contract with Customer, Product and Service Benchmark [Member] | Product Concentration Risk [Member]    
Disaggregation of Revenue [Line Items]    
Net Sales $ 34,877 $ 30,887
% of Net Sales 6.00% 7.00%
Other | Revenue from Contract with Customer, Product and Service Benchmark [Member] | Product Concentration Risk [Member]    
Disaggregation of Revenue [Line Items]    
Net Sales $ 2,986 $ (28)
% of Net Sales 1.00% 0.00%