Segment Reporting - Summary of Segment Information (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020 USD ($)	Sep. 26, 2020 USD ($)	Jun. 27, 2020 USD ($)	Mar. 28, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 28, 2019 USD ($)	Jun. 29, 2019 USD ($)	Mar. 30, 2019 USD ($)	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of reporting segments | segment									3
Assets	$ 14,327,751				$ 13,386,680				$ 14,327,751	$ 13,386,680	$ 13,099,123
Net sales	2,641,764	$ 2,574,870	$ 2,049,800	$ 2,285,763	2,424,512	$ 2,519,185	$ 2,584,485	$ 2,442,490	9,552,197	9,970,672	9,983,634
Long-lived assets	7,242,060				7,268,944				7,242,060	7,268,944	7,220,869
Operating income (loss)									636,002	827,224	1,095,326
Depreciation and amortization									607,507	576,452	521,765
Capital expenditures (excluding acquisitions)									425,557	545,462	794,110
Ceramic & Stone
Segment Reporting Information [Line Items]
Net sales									3,457,203	3,686,645	3,621,193
Carpet & Resilient
Segment Reporting Information [Line Items]
Net sales									3,735,888	3,921,769	3,903,698
Laminate & Wood
Segment Reporting Information [Line Items]
Net sales									1,538,967	1,501,077	1,553,032
Other
Segment Reporting Information [Line Items]
Net sales									820,139	861,181	905,711
United States
Segment Reporting Information [Line Items]
Net sales									5,530,407	5,822,593	6,103,789
Long-lived assets	3,303,197				3,391,676				3,303,197	3,391,676	3,485,046
Europe
Segment Reporting Information [Line Items]
Net sales									2,486,770	2,532,239	2,582,692
Russia
Segment Reporting Information [Line Items]
Net sales									385,830	385,395	349,220
Belgium
Segment Reporting Information [Line Items]
Long-lived assets	1,808,571				1,645,104				1,808,571	1,645,104	1,663,470
Other
Segment Reporting Information [Line Items]
Net sales									1,149,190	1,230,445	947,933
Long-lived assets	2,130,292				2,232,164				2,130,292	2,232,164	2,072,353
Operating segments | Global Ceramic
Segment Reporting Information [Line Items]
Assets	5,250,069				5,419,896				5,250,069	5,419,896	5,194,030
Net sales									3,432,756	3,631,142	3,552,856
Operating income (loss)									167,731	335,639	439,152
Depreciation and amortization									215,488	211,679	189,904
Capital expenditures (excluding acquisitions)									121,418	244,026	281,125
Operating segments | Global Ceramic | Ceramic & Stone
Segment Reporting Information [Line Items]
Net sales									3,425,672	3,631,142	3,552,856
Operating segments | Global Ceramic | Carpet & Resilient
Segment Reporting Information [Line Items]
Net sales									7,084	0	0
Operating segments | Global Ceramic | Laminate & Wood
Segment Reporting Information [Line Items]
Net sales									0	0	0
Operating segments | Global Ceramic | Other
Segment Reporting Information [Line Items]
Net sales									0	0	0
Operating segments | Global Ceramic | Europe
Segment Reporting Information [Line Items]
Net sales									699,715	711,762	714,315
Operating segments | Global Ceramic | Russia
Segment Reporting Information [Line Items]
Net sales									262,846	269,142	245,867
Operating segments | Flooring NA
Segment Reporting Information [Line Items]
Assets	3,594,976				3,823,654				3,594,976	3,823,654	3,938,639
Net sales									3,594,075	3,843,714	4,029,148
Operating income (loss)									147,442	177,566	356,842
Depreciation and amortization									214,599	204,689	184,455
Capital expenditures (excluding acquisitions)									186,179	148,820	262,676
Operating segments | Flooring NA | Ceramic & Stone
Segment Reporting Information [Line Items]
Net sales									31,531	55,503	68,337
Operating segments | Flooring NA | Carpet & Resilient
Segment Reporting Information [Line Items]
Net sales									2,871,050	3,136,474	3,258,029
Operating segments | Flooring NA | Laminate & Wood
Segment Reporting Information [Line Items]
Net sales									691,494	651,737	702,782
Operating segments | Flooring NA | Other
Segment Reporting Information [Line Items]
Net sales									0	0	0
Operating segments | Flooring NA | Europe
Segment Reporting Information [Line Items]
Net sales									1,506	6,922	6,487
Operating segments | Flooring NA | Russia
Segment Reporting Information [Line Items]
Net sales									50	66	2
Operating segments | Flooring ROW
Segment Reporting Information [Line Items]
Assets	4,194,447				3,925,246				4,194,447	3,925,246	3,666,617
Net sales									2,525,366	2,495,816	2,401,630
Operating income (loss)									366,934	353,666	340,642
Depreciation and amortization									164,701	145,417	135,350
Capital expenditures (excluding acquisitions)									113,378	147,118	232,949
Operating segments | Flooring ROW | Ceramic & Stone
Segment Reporting Information [Line Items]
Net sales									0	0	0
Operating segments | Flooring ROW | Carpet & Resilient
Segment Reporting Information [Line Items]
Net sales									857,754	785,295	645,669
Operating segments | Flooring ROW | Laminate & Wood
Segment Reporting Information [Line Items]
Net sales									847,473	849,340	850,250
Operating segments | Flooring ROW | Other
Segment Reporting Information [Line Items]
Net sales									820,139	861,181	905,711
Operating segments | Flooring ROW | Europe
Segment Reporting Information [Line Items]
Net sales									1,785,549	1,813,555	1,861,890
Operating segments | Flooring ROW | Russia
Segment Reporting Information [Line Items]
Net sales									122,934	116,187	103,351
Corporate and intersegment eliminations
Segment Reporting Information [Line Items]
Assets	$ 1,288,259				$ 217,884				1,288,259	217,884	299,837
Operating income (loss)									(46,105)	(39,647)	(41,310)
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization									12,719	14,667	12,056
Capital expenditures (excluding acquisitions)									$ 4,582	$ 5,498	$ 17,360