Earnings (loss) per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Earnings Per Share [Abstract]
Net earnings (loss) attributable to Mohawk Industries, Inc.	$ (48,257)	$ 202,441	$ 62,257	$ 324,026
Weighted-average common shares outstanding-basic and diluted:
Weighted-average common shares outstanding-basic (in shares)	71,186	72,402	71,364	71,970
Add weighted-average dilutive potential common shares-options to purchase common shares and RSUs, net (in shares)	0	278	183	280
Weighted-average common shares outstanding-diluted (in shares)	71,186	72,680	71,547	72,250
Earnings (loss) per share attributable to Mohawk Industries, Inc.
Basic (in usd per share)	$ (0.68)	$ 2.80	$ 0.87	$ 4.50
Diluted (in usd per share)	$ (0.68)	$ 2.79	$ 0.87	$ 4.48
Antidilutive securities excluded from computation of earnings per share, amount	167