Revenue Recognition - Narrative (Details)	6 Months Ended
	Jul. 04, 2021	Jul. 05, 2020
Carpet, Modular Resilient Flooring, and Related Products
Percent of revenue due to contracts with customers (percentage)	98.00%	98.00%
Installation of Carpet and Other Flooring Related Material
Percent of revenue due to contracts with customers (percentage)	2.00%	2.00%