Revenue from Contracts with Customers - Summary of Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 2,577,014	$ 2,453,038	$ 4,989,216	$ 4,673,683
Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	947,475	924,169	1,841,566	1,730,486
Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	991,757	940,461	1,876,314	1,773,837
Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	396,967	390,433	800,379	767,250
Other
Disaggregation of Revenue [Line Items]
Net sales	240,815	197,975	470,957	402,110
United States
Disaggregation of Revenue [Line Items]
Net sales	1,592,529	1,562,278	3,056,838	3,000,602
Europe
Disaggregation of Revenue [Line Items]
Net sales	701,426	610,266	1,387,954	1,158,117
Russia
Disaggregation of Revenue [Line Items]
Net sales	90,262	84,488	161,113	146,885
Other
Disaggregation of Revenue [Line Items]
Net sales	192,797	196,006	383,311	368,079
Global Ceramic segment
Disaggregation of Revenue [Line Items]
Net sales	929,297	902,670	1,805,845	1,687,639
Global Ceramic segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	929,297	902,670	1,805,845	1,687,639
Global Ceramic segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Global Ceramic segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Global Ceramic segment | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Global Ceramic segment | United States
Disaggregation of Revenue [Line Items]
Net sales	578,535	571,195	1,134,722	1,116,211
Global Ceramic segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	208,671	191,397	398,906	323,018
Global Ceramic segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	63,709	62,006	115,131	106,264
Global Ceramic segment | Other
Disaggregation of Revenue [Line Items]
Net sales	78,382	78,072	157,086	142,146
Flooring NA segment
Disaggregation of Revenue [Line Items]
Net sales	1,057,570	1,040,299	2,007,928	1,979,796
Flooring NA segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	18,178	21,499	35,721	42,847
Flooring NA segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	859,179	829,625	1,614,725	1,562,878
Flooring NA segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	180,213	189,175	357,482	374,071
Flooring NA segment | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Flooring NA segment | United States
Disaggregation of Revenue [Line Items]
Net sales	1,013,994	990,599	1,922,116	1,883,204
Flooring NA segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	1,870	4,248	3,520	8,283
Flooring NA segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Flooring NA segment | Other
Disaggregation of Revenue [Line Items]
Net sales	41,706	45,452	82,292	88,309
Flooring ROW segment
Disaggregation of Revenue [Line Items]
Net sales	590,147	510,069	1,175,443	1,006,248
Flooring ROW segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Flooring ROW segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	132,578	110,836	261,589	210,959
Flooring ROW segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	216,754	201,258	442,897	393,179
Flooring ROW segment | Other
Disaggregation of Revenue [Line Items]
Net sales	240,815	197,975	470,957	402,110
Flooring ROW segment | United States
Disaggregation of Revenue [Line Items]
Net sales	0	484	0	1,187
Flooring ROW segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	490,885	414,621	985,528	826,816
Flooring ROW segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	26,553	22,482	45,982	40,621
Flooring ROW segment | Other
Disaggregation of Revenue [Line Items]
Net sales	$ 72,709	$ 72,482	$ 143,933	$ 137,624