Revenue from Contracts with Customers - Summary of Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 2,049,800	$ 2,584,485	$ 4,335,563	$ 5,026,975
Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	759,138	971,946	1,617,953	1,884,741
Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	780,633	1,009,921	1,655,643	1,936,274
Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	342,398	376,180	695,457	758,494
Other
Disaggregation of Revenue [Line Items]
Net sales	167,631	226,438	366,510	447,466
United States
Disaggregation of Revenue [Line Items]
Net sales	1,250,692	1,501,304	2,566,952	2,926,440
Europe
Disaggregation of Revenue [Line Items]
Net sales	499,845	683,130	1,112,511	1,334,194
Russia
Disaggregation of Revenue [Line Items]
Net sales	77,450	94,901	163,584	170,460
Other
Disaggregation of Revenue [Line Items]
Net sales	221,813	305,150	492,516	595,881
Global Ceramic segment
Disaggregation of Revenue [Line Items]
Net sales	753,335	958,031	1,601,785	1,856,383
Flooring NA segment
Disaggregation of Revenue [Line Items]
Net sales	800,088	983,439	1,648,418	1,905,419
Flooring ROW segment
Disaggregation of Revenue [Line Items]
Net sales	496,377	643,015	1,085,360	1,265,173
Operating segments | Global Ceramic segment
Disaggregation of Revenue [Line Items]
Net sales	753,335	958,031	1,601,785	1,856,383
Operating segments | Global Ceramic segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	751,735	958,031	1,600,185	1,856,383
Operating segments | Global Ceramic segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	1,600	0	1,600	0
Operating segments | Global Ceramic segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Operating segments | Global Ceramic segment | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Operating segments | Global Ceramic segment | United States
Disaggregation of Revenue [Line Items]
Net sales	472,538	554,509	977,643	1,096,335
Operating segments | Global Ceramic segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	146,647	205,205	316,182	384,515
Operating segments | Global Ceramic segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	55,216	67,792	115,024	119,707
Operating segments | Global Ceramic segment | Other
Disaggregation of Revenue [Line Items]
Net sales	78,934	130,525	192,936	255,826
Operating segments | Flooring NA segment
Disaggregation of Revenue [Line Items]
Net sales	800,088	983,439	1,648,418	1,905,419
Operating segments | Flooring NA segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	7,403	13,915	17,768	28,358
Operating segments | Flooring NA segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	615,754	808,402	1,299,469	1,543,826
Operating segments | Flooring NA segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	176,931	161,122	331,181	333,235
Operating segments | Flooring NA segment | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Operating segments | Flooring NA segment | United States
Disaggregation of Revenue [Line Items]
Net sales	777,778	946,086	1,588,226	1,829,328
Operating segments | Flooring NA segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	842	2,164	3,478	4,001
Operating segments | Flooring NA segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	0	22	0	52
Operating segments | Flooring NA segment | Other
Disaggregation of Revenue [Line Items]
Net sales	21,468	35,167	56,714	72,038
Operating segments | Flooring ROW segment
Disaggregation of Revenue [Line Items]
Net sales	496,377	643,015	1,085,360	1,265,173
Operating segments | Flooring ROW segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Operating segments | Flooring ROW segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	163,279	201,519	354,574	392,448
Operating segments | Flooring ROW segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	165,467	215,058	364,276	425,259
Operating segments | Flooring ROW segment | Other
Disaggregation of Revenue [Line Items]
Net sales	167,631	226,438	366,510	447,466
Operating segments | Flooring ROW segment | United States
Disaggregation of Revenue [Line Items]
Net sales	376	709	1,083	777
Operating segments | Flooring ROW segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	352,356	475,761	792,851	945,678
Operating segments | Flooring ROW segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	22,234	27,087	48,560	50,701
Operating segments | Flooring ROW segment | Other
Disaggregation of Revenue [Line Items]
Net sales	$ 121,411	$ 139,458	$ 242,866	$ 268,017