SEGMENT INFORMATION (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financial information of segments
NET SALES		$ 268,622	$ 265,943	$ 535,120	$ 495,544
INTERSEGMENT SALES	[1]	3,438	4,833	7,229	9,231
OPERATING PROFIT	[2]	28,255	22,238	50,554	33,522
Restructuring charges		0	203	0	795
Office
Financial information of segments
NET SALES		160,877	159,100	328,600	305,183
INTERSEGMENT SALES	[1]	415	511	901	984
OPERATING PROFIT	[2],[3]	9,099	6,402	16,345	6,873
Restructuring charges			200		800
Studio
Financial information of segments
NET SALES		77,863	76,454	148,057	132,451
INTERSEGMENT SALES	[1]	1,706	1,524	3,086	2,834
OPERATING PROFIT	[2]	12,079	9,506	21,031	15,048
Coverings
Financial information of segments
NET SALES		29,882	30,389	58,463	57,910
INTERSEGMENT SALES	[1]	1,317	2,798	3,242	5,413
OPERATING PROFIT	[2]	$ 7,077	$ 6,330	$ 13,178	$ 11,601

[1] Intersegment sales represent sales between Knoll, Inc. segments; these intersegment sales are eliminated in consolidation.

[2] The Company does not allocate interest expense or other (income) expense, net to the reportable segments.

[3] Office operating profit includes $0.2 million and $0.8 million of restructuring expenses incurred during the three and six months ended June 30, 2014, respectively.