Goodwill and Intangible Assets - Schedule of goodwill (Details) $ in Thousands	9 Months Ended
	Oct. 02, 2021 USD ($)
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	$ 3,978,256
Accumulated impairment losses, beginning balance	(1,327,425)
Goodwill, net, beginning balance	2,650,831
Goodwill recognized during the period	32,592
Currency translation during the period	(71,222)
Goodwill, gross, ending balance	3,939,626
Accumulated impairment losses, ending balance	(1,327,425)
Goodwill, net, ending balance	2,612,201
Global Ceramic segment
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	1,579,491
Accumulated impairment losses, beginning balance	(531,930)
Goodwill, net, beginning balance	1,047,561
Goodwill recognized during the period	0
Currency translation during the period	(10,291)
Goodwill, gross, ending balance	1,569,200
Accumulated impairment losses, ending balance	(531,930)
Goodwill, net, ending balance	1,037,270
Flooring NA segment
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	874,198
Accumulated impairment losses, beginning balance	(343,054)
Goodwill, net, beginning balance	531,144
Goodwill recognized during the period	0
Currency translation during the period	0
Goodwill, gross, ending balance	874,198
Accumulated impairment losses, ending balance	(343,054)
Goodwill, net, ending balance	531,144
Flooring ROW segment
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	1,524,567
Accumulated impairment losses, beginning balance	(452,441)
Goodwill, net, beginning balance	1,072,126
Goodwill recognized during the period	32,592
Currency translation during the period	(60,931)
Goodwill, gross, ending balance	1,496,228
Accumulated impairment losses, ending balance	(452,441)
Goodwill, net, ending balance	$ 1,043,787