Restructuring Actions (Summary Of Restructuring Accruals) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 3.8	$ 14.5
Net charges	(0.4)	9.0	22.0
Net reversals	(0.4)	(9.0)
Cash payments	(2.8)	(20.0)
Other	(0.2)	0.3
Ending balance	0.8	3.8	14.5
Floor Products Europe [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	3.2	6.1
Net reversals	(0.4)	(6.4)
Cash payments	(2.3)	(9.6)
Other	(0.2)	0.3
Ending balance	0.7	3.2
North America SG&A [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	0.5	4.7
Net reversals		(1.4)
Cash payments	(0.5)	(5.6)
Ending balance		0.5
Beaver Falls Plant [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance		1.9
Net reversals		(1.4)
Cash payments		(3.2)
Ending balance	0.1	0.1
Montreal [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance		1.2
Cash payments		(1.2)
Wood Products [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance		0.6
Net reversals		0.2
Cash payments		$ (0.4)