CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue:
Total revenue	$ 810,421	$ 721,789	$ 2,414,270	$ 1,985,717
Cost of Revenue:
Total cost of revenue	337,500	299,183	981,259	824,179
Gross profit	472,921	422,606	1,433,011	1,161,538
Expenses:
Sales and marketing	124,434	108,202	358,277	318,526
General and administrative	82,098	105,031	226,194	231,111
Research and development	40,427	37,517	115,703	102,472
Income from operations	225,962	171,856	732,837	509,429
Interest expense	(7,134)	(8,110)	(22,331)	(25,297)
Interest income	122	208	265	417
Income before provision for income taxes	218,950	163,954	710,771	484,549
Provision for income taxes	43,772	17,633	128,698	77,376
Net income	175,178	146,321	582,073	407,173
Less: Net (loss) income attributable to noncontrolling interest	(57)	102	(1)	187
Net income attributable to IDEXX Laboratories, Inc. stockholders	$ 175,235	$ 146,219	$ 582,074	$ 406,986
Earnings per Share:
Basic (in USD per share)	$ 2.06	$ 1.71	$ 6.82	$ 4.77
Diluted (in USD per share)	$ 2.03	$ 1.69	$ 6.71	$ 4.70
Weighted Average Shares Outstanding:
Basic (in shares)	85,123	85,314	85,325	85,293
Diluted (in shares)	86,511	86,690	86,712	86,635
Product revenue
Revenue:
Total revenue	$ 471,787	$ 422,283	$ 1,406,850	$ 1,153,114
Cost of Revenue:
Total cost of revenue	166,748	146,804	483,850	396,282
Service revenue
Revenue:
Total revenue	338,634	299,506	1,007,420	832,603
Cost of Revenue:
Total cost of revenue	$ 170,752	$ 152,379	$ 497,409	$ 427,897