CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue:
Total revenue	$ 3,215,360	$ 2,706,655	$ 2,406,908
Cost of Revenue:
Total cost of revenue	1,325,928	1,135,615	1,041,359
Gross profit	1,889,432	1,571,040	1,365,549
Expenses:
Sales and marketing	486,735	434,435	418,193
General and administrative	309,660	300,832	261,317
Research and development	161,009	141,249	133,193
Income from operations	932,028	694,524	552,846
Interest expense	(29,808)	(33,125)	(31,055)
Interest income	434	586	427
Income before provision for income taxes	902,654	661,985	522,218
Provision for income taxes	157,810	79,854	94,426
Net income	744,844	582,131	427,792
Less: Net (loss) income attributable to noncontrolling interest	(1)	355	72
Net income attributable to IDEXX Laboratories, Inc. stockholders	$ 744,845	$ 581,776	$ 427,720
Earnings per Share:
Basic (in USD per share)	$ 8.74	$ 6.82	$ 4.97
Diluted (in USD per share)	$ 8.60	$ 6.71	$ 4.89
Weighted Average Shares Outstanding:
Basic (in shares)	85,200	85,342	86,115
Diluted (in shares)	86,572	86,722	87,542
Product revenue
Revenue:
Total revenue	$ 1,875,308	$ 1,586,809	$ 1,423,144
Cost of Revenue:
Total cost of revenue	656,823	557,795	506,202
Service revenue
Revenue:
Total revenue	1,340,052	1,119,846	983,764
Cost of Revenue:
Total cost of revenue	$ 669,105	$ 577,820	$ 535,157