EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Schedule of reconciliation of basic to dilutive average common shares

The following table sets forth the reconciliation from basic to dilutive average common shares (in thousands):

	Years ended December 31,
	2017		2016		2015
Numerator:
Net earnings attributable to Knoll, Inc. stockholders	$	80,163	$	82,084	$	65,963
Denominator:
Denominator for basic earnings per shares - weighted-average shares	48,423		48,093		47,747
Effect of dilutive securities:
Potentially dilutive shares resulting from stock plans	737		826		691
Denominator for diluted earnings per share - weighted-average shares	49,160		48,919		48,438
Antidilutive equity awards not included in weighted-average common shares—diluted	—		—		4
Net earnings per common share attributable to Knoll, Inc. stockholders:
Basic	$	1.66	$	1.71	$	1.38
Diluted	$	1.63	$	1.68	$	1.36