Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenue:
Product revenue	$ 206,693	$ 196,900	$ 629,782	$ 613,288
Service revenue	131,604	118,575	393,203	360,512
Total revenue	338,297	315,475	1,022,985	973,800
Cost of Revenue:
Cost of product revenue	76,521	72,738	230,514	226,420
Cost of service revenue	75,993	72,102	225,018	217,282
Total cost of revenue	152,514	144,840	455,532	443,702
Gross profit	185,783	170,635	567,453	530,098
Expenses:
Sales and marketing	60,079	52,067	179,641	164,238
General and administrative	38,651	35,307	116,871	105,760
Research and development	21,568	20,349	65,507	60,964
Income from operations	65,485	62,912	205,434	199,136
Interest expense	(1,463)	(873)	(3,477)	(2,992)
Interest income	456	473	1,345	1,389
Income before provision for income taxes	64,478	62,512	203,302	197,533
Provision for income taxes	18,786	19,639	58,745	62,606
Net income	45,692	42,873	144,557	134,927
Less: Net income attributable to noncontrolling interest	4	20	15	14
Net income attributable to IDEXX Laboratories, Inc. stockholders	$ 45,688	$ 42,853	$ 144,542	$ 134,913
Earnings per Share:
Basic	$ 0.87	$ 0.78	$ 2.70	$ 2.45
Diluted	$ 0.86	$ 0.76	$ 2.66	$ 2.40
Weighted Average Shares Outstanding:
Basic	52,450	54,938	53,562	55,074
Diluted	53,242	56,088	54,391	56,270