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REVENUE (Disaggregation of Revenue by Major Product and Service Categories) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 1,105,239 | $ 975,543 | $ 3,213,123 | $ 2,943,216
Segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 1,100,775 | 971,144 | 3,199,734 | 2,931,035
Segment revenue | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 1,012,534 | 891,990 | 2,954,813 | 2,703,573
Segment revenue | Water segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 54,297 | 50,162 | 150,619 | 139,959
Segment revenue | LPD segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 33,944 | 28,992 | 94,302 | 87,503
Segment revenue | CAG Diagnostics recurring revenue: | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 873,273 | 783,443 | 2,557,535 | 2,372,041
Segment revenue | IDEXX VetLab consumables | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 387,813 | 329,128 | 1,107,704 | 971,405
Segment revenue | Rapid assay products | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 88,638 | 92,774 | 272,912 | 282,379
Segment revenue | Reference laboratory diagnostic and consulting services | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 362,725 | 328,383 | 1,074,825 | 1,020,094
Segment revenue | CAG Diagnostics services and accessories | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 34,097 | 33,158 | 102,094 | 98,163
Segment revenue | CAG Diagnostics capital - instruments | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 51,479 | 29,528 | 142,073 | 98,912
Segment revenue | Veterinary software, services and diagnostic imaging systems: | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 87,782 | 79,019 | 255,205 | 232,620
Segment revenue | Recurring revenue | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 70,988 | 64,644 | 205,735 | 187,461
Segment revenue | Systems and hardware | CAG segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 16,794 | 14,375 | 49,470 | 45,159
Other segment revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 4,464 | $ 4,399 | $ 13,389 | $ 12,181

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