Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Product revenue	$ 291,031	$ 266,321	$ 867,087	$ 800,273
Service revenue	200,945	181,987	595,850	532,154
Total revenue	491,976	448,308	1,462,937	1,332,427
Cost of Revenue:
Cost of product revenue	109,848	103,909	323,205	310,450
Cost of service revenue	108,126	97,669	314,824	287,167
Total cost of revenue	217,974	201,578	638,029	597,617
Gross profit	274,002	246,730	824,908	734,810
Expenses:
Sales and marketing	88,818	79,972	263,755	236,453
General and administrative	57,186	52,627	165,560	156,239
Research and development	27,585	25,672	80,373	75,704
Income from operations	100,413	88,459	315,220	266,414
Interest expense	(9,764)	(7,786)	(27,508)	(24,294)
Interest income	1,400	851	3,659	2,599
Income before provision for income taxes	92,049	81,524	291,371	244,719
Provision for income taxes	21,535	25,072	66,392	75,036
Net income	70,514	56,452	224,979	169,683
Less: Net income attributable to noncontrolling interest	3	(3)	92	7
Net income attributable to IDEXX Laboratories, Inc. stockholders	$ 70,511	$ 56,455	$ 224,887	$ 169,676
Earnings per Share:
Basic	$ 0.81	$ 0.63	$ 2.56	$ 1.89
Diluted	$ 0.79	$ 0.62	$ 2.51	$ 1.87
Weighted Average Shares Outstanding:
Basic	87,537	89,894	87,884	89,881
Diluted	89,256	91,138	89,735	90,960