Goodwill And Intangible Assets (Schedule Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Goodwill [Line Items]
Goodwill, beginning balance	$ 2,702,600
Accumulated impairments losses, beginning balance	(1,327,425)
Goodwill, net, beginning balance	1,375,175
Currency translation during the year	15,537
Goodwill, ending balance	2,718,137
Accumulated impairments losses, ending balance	(1,327,425)
Goodwill, net, ending balance	1,390,712
Mohawk [Member]
Goodwill [Line Items]
Goodwill, beginning balance	199,132
Accumulated impairments losses, beginning balance	(199,132)
Goodwill, net, beginning balance
Currency translation during the year
Goodwill, ending balance	199,132
Accumulated impairments losses, ending balance	(199,132)
Goodwill, net, ending balance
Dal-Tile [Member]
Goodwill [Line Items]
Goodwill, beginning balance	1,186,913
Accumulated impairments losses, beginning balance	(531,930)
Goodwill, net, beginning balance	654,983
Currency translation during the year
Goodwill, ending balance	1,186,913
Accumulated impairments losses, ending balance	(531,930)
Goodwill, net, ending balance	654,983
Unilin [Member]
Goodwill [Line Items]
Goodwill, beginning balance	1,316,555
Accumulated impairments losses, beginning balance	(596,363)
Goodwill, net, beginning balance	720,192
Currency translation during the year	15,537
Goodwill, ending balance	1,332,092
Accumulated impairments losses, ending balance	(596,363)
Goodwill, net, ending balance	$ 735,729