SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Financial information of segments
NET SALES	$ 196,662	$ 220,858
NET INTERSEGMENT SALES	4,250	4,056
OPERATING INCOME	15,452	20,914
Restructuring and other charges - primarily Office		471
Reportable segments
Financial information of segments
OPERATING INCOME	15,452	21,385
Office
Financial information of segments
NET SALES	138,297	161,698
NET INTERSEGMENT SALES	748	333
OPERATING INCOME	6,933	11,376
Studio
Financial information of segments
NET SALES	33,174	35,652
NET INTERSEGMENT SALES	1,182	1,330
OPERATING INCOME	3,983	5,429
Coverings
Financial information of segments
NET SALES	25,191	23,508
NET INTERSEGMENT SALES	2,320	2,393
OPERATING INCOME	$ 4,536	$ 4,580