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Segment Reporting (Summary Of Revenue By Product And Service Category) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Revenue	$ 417,550	$ 382,477
CAG Diagnostics Recurring Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	305,510	278,766
IDEXX Vetlab Consumables [Member]
Segment Reporting Information [Line Items]
Revenue	107,959	98,392
IDEXX VetLab Service and Accessories [Member]
Segment Reporting Information [Line Items]
Revenue	13,757	13,530
Rapid Assay Products [Member]
Segment Reporting Information [Line Items]
Revenue	43,086	43,637
Reference Laboratory Diagnostic And Consulting Services [Member]
Segment Reporting Information [Line Items]
Revenue	140,708	123,207
CAG Diagnostic Capital - Instruments [Member]
Segment Reporting Information [Line Items]
Revenue	22,974	20,113
Customer Information Managment and Diagnostic Imaging Systems [Member]
Segment Reporting Information [Line Items]
Revenue	29,155	25,652
CAG Segment [Member]
Segment Reporting Information [Line Items]
Revenue	357,639	324,531
Water Segment [Member]
Segment Reporting Information [Line Items]
Revenue	23,552	21,698
LPD Segment [Member]
Segment Reporting Information [Line Items]
Revenue	30,856	31,270
Other Segment [Member]
Segment Reporting Information [Line Items]
Revenue	$ 5,503	$ 4,978

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

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+ References

No definition available.

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