Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales	$ 9,552,197	$ 9,970,672	$ 9,983,634
Cost of sales	7,121,507	7,294,629	7,145,564
Gross profit	2,430,690	2,676,043	2,838,070
Selling, general and administrative expenses	1,794,688	1,848,819	1,742,744
Operating income	636,002	827,224	1,095,326
Interest expense	52,379	41,272	38,827
Other expense (income) net	(751)	36,407	7,298
Earnings before income taxes	584,374	749,545	1,049,201
Income tax expense	68,647	4,974	184,346
Net earnings including noncontrolling interests	515,727	744,571	864,855
Net earnings attributable to noncontrolling interests	132	360	3,151
Net earnings attributable to Mohawk Industries, Inc.	$ 515,595	$ 744,211	$ 861,704
Basic earnings per share attributable to Mohawk Industries, Inc.
Basic earnings per share attributable to Mohawk Industries, Inc. (usd per share)	$ 7.24	$ 10.34	$ 11.53
Weighted-average common shares outstanding—basic (in shares)	71,214	71,986	74,413
Diluted earnings per share attributable to Mohawk Industries, Inc.
Diluted earnings per share attributable to Mohawk Industries, Inc. (usd per share)	$ 7.22	$ 10.30	$ 11.47
Weighted-average common shares outstanding—diluted (in shares)	71,401	72,264	74,773