Restructuring, Acquisition and Integration-Related Costs Restructuring Reserve (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Remaining period restructuring costs to be paid	4 years
Restructuring Reserve [Roll Forward]
Beginning balance	$ 10,355	$ 14,845
Restructuring	69,489	18,564	23,209
Cash payments	(42,268)	(12,502)
Non-cash items	(13,528)	(10,552)
Ending balance	(24,048)	10,355	14,845
Lease Impairments [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	7,457	10,956
Cash payments	(2,873)	(3,872)
Non-cash items	0	0
Ending balance	(5,904)	7,457
Asset Write-Down [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	0	0
Cash payments	0	0
Non-cash items	(1,801)	(10,552)
Ending balance	0	0
Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	2,898	2,378
Cash payments	(26,196)	(7,333)
Non-cash items	0	0
Ending balance	(18,144)	2,898
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	0	1,511
Cash payments	(13,199)	(1,297)
Non-cash items	(11,727)	0
Ending balance	0	0
Carpet Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring	13,829	10,504
Carpet Segment [Member] | Lease Impairments [Member]
Restructuring Reserve [Roll Forward]
Restructuring	1,320	0
Carpet Segment [Member] | Asset Write-Down [Member]
Restructuring Reserve [Roll Forward]
Restructuring	1,024	6,687
Carpet Segment [Member] | Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring	10,777	4,069
Carpet Segment [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring	708	(252)
Ceramic Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring	21,359	6,109
Ceramic Segment [Member] | Lease Impairments [Member]
Restructuring Reserve [Roll Forward]
Restructuring	0	373
Ceramic Segment [Member] | Asset Write-Down [Member]
Restructuring Reserve [Roll Forward]
Restructuring	777	3,727
Ceramic Segment [Member] | Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring	9,372	2,009
Ceramic Segment [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring	11,210	0
Laminate and Wood Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring	33,379	1,951
Laminate and Wood Segment [Member] | Lease Impairments [Member]
Restructuring Reserve [Roll Forward]
Restructuring	0	0
Laminate and Wood Segment [Member] | Asset Write-Down [Member]
Restructuring Reserve [Roll Forward]
Restructuring	0	138
Laminate and Wood Segment [Member] | Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring	20,371	1,775
Laminate and Wood Segment [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring	13,008	38
Corporate Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring	922
Corporate Segment [Member] | Lease Impairments [Member]
Restructuring Reserve [Roll Forward]
Restructuring	0
Corporate Segment [Member] | Asset Write-Down [Member]
Restructuring Reserve [Roll Forward]
Restructuring	0
Corporate Segment [Member] | Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring	922
Corporate Segment [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring	$ 0