Earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Earnings Per Share [Abstract]
Net earnings attributable to Mohawk Industries, Inc.	$ 110,514	$ 121,585
Weighted-average common shares outstanding-basic and diluted:
Weighted-average common shares outstanding-basic (in shares)	71,547	72,342
Add weighted-average dilutive potential common shares-options to purchase common shares and RSUs, net (in shares)	230	304
Weighted-average common shares outstanding-diluted (in shares)	71,777	72,646
Earnings per share attributable to Mohawk Industries, Inc.
Basic (in usd per share)	$ 1.54	$ 1.68
Diluted (in usd per share)	$ 1.54	$ 1.67