Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Total revenue	$ 537,656	$ 462,021
Cost of Revenue:
Cost of product revenue	118,246	103,027
Cost of service revenue	116,311	100,803
Total cost of revenue	234,557	203,830
Gross profit	303,099	258,191
Expenses:
Sales and marketing	100,101	87,244
General and administrative	60,931	52,914
Research and development	29,023	25,790
Income from operations	113,044	92,243
Interest expense	(9,274)	(8,589)
Interest income	579	1,083
Income before provision for income taxes	104,349	84,737
Provision for income taxes	14,873	15,679
Net income	89,476	69,058
Less: Net income attributable to noncontrolling interest	25	39
Net income attributable to IDEXX Laboratories, Inc. stockholders	$ 89,451	$ 69,019
Earnings per Share:
Basic	$ 1.02	$ 0.78
Diluted	$ 1.01	$ 0.77
Weighted Average Shares Outstanding:
Basic	87,331	88,117
Diluted	88,944	89,994
Product [Member]
Revenue:
Total revenue	$ 317,440	$ 271,965
Service [Member]
Revenue:
Total revenue	$ 220,216	$ 190,056