Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table presents disaggregated revenue by major product and service categories for the three and nine months ended September 30, 2018 and 2017 (in thousands):

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	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2018		2017		2018		2017
CAG segment revenue:
CAG Diagnostics recurring revenue:	$	409,162	$	364,937	$	1,252,876	$	1,091,936
IDEXX VetLab consumables	152,509		129,434		460,642		385,081
Rapid assay products	53,821		50,924		169,200		159,085
Reference laboratory diagnostic and consulting services	184,103		167,851		568,308		498,218
CAG Diagnostics service and accessories	18,729		16,728		54,726		49,552
CAG Diagnostics capital - instruments	31,561		29,119		97,000		83,018
Veterinary software, services and diagnostic imaging systems	37,374		32,630		106,541		94,907
CAG segment revenue	478,097		426,686		1,456,417		1,269,861
Water segment revenue	33,108		31,030		94,909		85,531
LPD segment revenue	29,420		28,396		96,658		91,266
Other segment revenue	4,823		5,864		15,872		16,279
Total revenue	$	545,448	$	491,976	$	1,663,856	$	1,462,937

Revenue by principal geographic area, based on customers’ domiciles, was as follows (in thousands):

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	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2018		2017		2018		2017
United States	$	340,692	$	301,457	$	1,024,889	$	905,765
Europe, the Middle East and Africa	112,466		106,548		355,310		305,458
Asia Pacific Region	56,954		51,161		175,498		156,198
Canada	22,459		20,654		71,410		62,480
Latin America	12,877		12,156		36,749		33,036
Total	$	545,448	$	491,976	$	1,663,856	$	1,462,937