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ACQUISITIONS (Details) (USD $) In Millions, unless otherwise specified					12 Months Ended	3 Months Ended
	Dec. 31, 2011 Office	Dec. 31, 2011 Studio	Dec. 31, 2011 Coverings	Mar. 02, 2012 Richard Schultz Design Inc	Dec. 31, 2012 Richard Schultz Design Inc Studio	Mar. 31, 2012 Filzfelt Coverings
Acquisitions
Intangible assets acquired				$ 3.2
Goodwill recognized on acquisition				3.2
Contingent purchase price liability				1.1
Goodwill	37.9	2.2	36.4
Increase in goodwill as a result of acquisition					$ 3.2	$ 0.5