Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2012

Segment Reporting [Abstract]

Summary Of Segment Performance

	For the Three Months Ended March 31,
	CAG		Water		LPD		Other			Unallocated Amounts			Consolidated Total
2012
Revenue	$	268,073	$	19,582	$	22,182	$	12,839		$	-		$	322,676
Income (loss) from operations	$	46,918	$	8,295	$	5,266	$	538		$	(610	)	$	60,407
Interest expense, net														(757	)
Income before provision for income taxes														59,650
Provision for income taxes														18,916
Net income														40,734
Less: Net loss attributable to noncontrolling interest														(9	)
Net income attributable to IDEXX  Laboratories, Inc. stockholders													$	40,743
2011
Revenue	$	240,589	$	18,965	$	23,939	$	9,179		$	-		$	292,672
Income (loss) from operations	$	42,972	$	6,947	$	7,150	$	(550	)	$	(2,987	)	$	53,532
Interest expense, net														(359	)
Income before provision for income taxes														53,173
Provision for income taxes														16,567
Net income														36,606
Less: Net loss attributable to noncontrolling interest														(6	)
Net income attributable to IDEXX  Laboratories, Inc. stockholders													$	36,612

Summary Of Revenue By Product And Service Category

	For the Three Months Ended March 31,
	2012		2011
CAG segment revenue:
Instruments and consumables	$	101,997	$	93,887
Rapid assay products		43,664		38,617
Reference laboratory diagnostic and consulting services		101,862		89,128
Practice management systems and digital radiography		20,550		18,957
CAG segment revenue		268,073		240,589
Water segment revenue		19,582		18,965
LPD segment revenue		22,182		23,939
Other segment revenue		12,839		9,179
Total revenue	$	322,676	$	292,672