Revenue Recognition - Narrative (Details)	12 Months Ended
	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Carpet, Modular Resilient Flooring, and Related Products
Disaggregation of Revenue [Line Items]
Percent of revenue due to contracts with customers (percentage)	98.00%	98.00%	97.00%
Installation of Carpet and Other Flooring Related Material
Disaggregation of Revenue [Line Items]
Percent of revenue due to contracts with customers (percentage)	2.00%	2.00%	3.00%