Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010	Dec. 31, 2010
Net sales	$ 1,477,854	$ 1,400,086	$ 2,821,449	$ 2,747,322
Operating income	101,700	89,726	157,784	143,347
Assets	6,389,000		6,389,000		6,098,926
Number of reporting segment			3
Mohawk [Member]
Net sales	758,064	747,582	1,449,229	1,464,165
Operating income	31,201	26,345	48,241	42,973
Assets	1,783,630		1,783,630		1,637,319
Dal-Tile [Member]
Net sales	379,469	363,618	723,884	705,014
Operating income	32,138	28,124	49,838	43,519
Assets	1,700,482		1,700,482		1,644,448
Unilin [Member]
Net sales	363,097	308,385	688,929	614,265
Operating income	46,209	42,336	72,459	68,794
Assets	2,717,032		2,717,032		2,475,049
Intersegment Sales [Member]
Net sales	(22,776)	(19,499)	(40,593)	(36,122)
Corporate And Eliminations [Member]
Operating income	(7,848)	(7,079)	(12,754)	(11,939)
Corporate And Intersegment Eliminations [Member]
Assets	$ 187,856		$ 187,856		$ 342,110