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Pay vs Performance Disclosure
 12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Pay vs Performance Disclosure          
Pay vs Performance Disclosure, Table
Year (1)
Summary Compensation Table Total for CEO
Compensation Actually Paid to CEO(2)(4)
Average Summary Compensation Table Total for Other NEOs
Average Compensation Actually
Paid to Other NEOs(3)(4)
Value of Initial Fixed $100 Investment
Based on: 		IDEXX Net Income (MM)
IDEXX Organic Revenue Growth(7)
IDEXX
TSR(5)
Peer Group TSR(6)
2025
$14,580,122 
$31,764,374 
$3,058,799 
$5,888,052 
$135.34 
$148.36 
$1,059.5 
10 
%
2024
$13,007,051 
$2,329,479 
$3,767,208 
$1,520,473 
$82.71 
$129.46 
$887.9 
6 
%
2023
$11,519,309 
$22,675,198 
$3,313,564 
$6,133,478 
$111.04 
$126.21 
$845.0 
9 
%
2022
$9,788,388 
($13,754,140)
$2,782,492 
($3,411,052)
$81.61 
$123.67 
$679.1 
7 
%
2021
$9,065,021 
$28,210,038 
$2,848,443 
$8,009,991 
$131.73 
$126.13 
$744.8 
16 
%
        
Company Selected Measure Name organic revenue growth        
Named Executive Officers, Footnote For each of the years presented in the table, our CEO was Jonathan J. Mazelsky. Our other NEOs were Brian P. McKeon (2021-2025), James F. Polewaczyk (2021-2023), Michael J. Lane (2021-2025), Tina Hunt (2021-2025), Martin Smith (2024-2025) and Andrew Emerson (2025).        
Peer Group Issuers, Footnote The peer group TSR set forth in the table utilizes the S&P 500 Health Care Index, which we also utilize in the stock performance graph required by Item 201(e) of Regulation S-K included in our Annual Report on Form 10-K for the year ended December 31, 2025. The measurement period to calculate the S&P 500 Health Care Index TSR begins as of market close on December 31, 2020 and ends on December 31, 2021, 2022, 2023, 2024 and 2025, as applicable. The calculation of the S&P 500 Health Care Index TSR assumes an investment of $100 in the S&P 500 Health Care Index as of the close of trading on December 31, 2020, and assumes dividends, if any, were reinvested.        
PEO Total Compensation Amount $ 14,580,122 $ 13,007,051 $ 11,519,309 $ 9,788,388 $ 9,065,021
PEO Actually Paid Compensation Amount $ 31,764,374 2,329,479 22,675,198 (13,754,140) 28,210,038
Adjustment To PEO Compensation, Footnote The table below provides a summary of the adjustments made to the summary compensation table total for our CEO to calculate the “compensation actually paid” to our CEO. The amount has been calculated in accordance with Item 402(v) of Regulation S-K and the dollar amount of the “compensation actually paid” does not reflect the actual amount of compensation earned or paid to the CEO during the applicable year. There were no equity award forfeitures nor dividends or other earnings paid on stock or option awards in any of the applicable years and thus no adjustments are reflected for such events in the table below.
Year2025
($)		2024
($)		2023
($)		2022
($)		2021
($)
Summary Compensation Table for CEO
14,580,122 
13,007,051 
11,519,309 
9,788,388 
9,065,021 
LessGrant date value of Stock Awards granted during fiscal year as reported in the SCT
5,399,881 
5,199,755 
2,187,697 
1,937,696 
1,500,029 
LessGrant date value of Option Awards granted during fiscal year as reported in the SCT
5,400,001 
5,200,032 
6,562,842 
5,812,593 
4,499,229 
LessFair value of equity awards at end of the prior year that failed to meet vesting conditions during fiscal year
— 
— 
— 
— 
— 
PlusFair value as of year end of outstanding and unvested equity awards granted during fiscal year
17,786,572 
6,143,454 
10,282,274 
6,449,518 
8,858,781 
Plus (Less)Change in fair value (comparing year end to the end of prior fiscal year) of equity awards granted in a prior fiscal year that are outstanding and unvested at year end
9,606,182 
(5,404,510)
6,759,528 
(15,299,044)
13,640,628 
PlusFair value of equity awards on vesting date for equity awards granted and vested during fiscal year
— 
— 
— 
— 
— 
Plus (Less)Change in fair value (comparing the vesting date to the end of the prior fiscal year) of equity awards granted in a prior fiscal year that vested during the fiscal year
591,381 
(1,016,729)
2,864,627 
(6,942,713)
2,644,866 
Compensation Actually Paid to CEO
31,764,374 
2,329,479 
22,675,198 
(13,754,140)
28,210,038 
        
Non-PEO NEO Average Total Compensation Amount $ 3,058,799 3,767,208 3,313,564 2,782,492 2,848,443
Non-PEO NEO Average Compensation Actually Paid Amount $ 5,888,052 1,520,473 6,133,478 (3,411,052) 8,009,991
Adjustment to Non-PEO NEO Compensation Footnote The table below provides a summary of the adjustments made to the average summary compensation table total for our other NEOs to calculate the average “compensation actually paid” to our other NEOs. The amount has been calculated in accordance with Item 402(v) of Regulation S-K and the dollar amount of the average “compensation actually paid” does not reflect the actual average amount of compensation earned or paid to the other NEOs during the applicable year. There were no dividends or other earnings paid on stock or option awards in any of the applicable years and thus no adjustments are reflected for such events in the table below. As a result of Mr. McKeon’s June 2025 retirement, he forfeited certain unvested equity awards and the applicable adjustments for those forfeitures are reflected in the following table.
Year2025
($)		2024
($)		2023
($)		2022
($)		2021
($)
Summary Compensation Table Average for other NEOs
3,058,799 
3,767,208 
3,313,564 
2,782,492 
2,848,443 
LessGrant date value of Stock Awards granted during fiscal year as reported in the SCT
999,886 
1,346,745 
662,577 
462,560 
399,899 
LessGrant date value of Option Awards granted during fiscal year as reported in the SCT
999,957 
1,346,841 
1,425,027 
1,387,558 
1,199,793 
LessFair value of equity awards at end of the prior year that failed to meet vesting conditions during fiscal year
81,164 
— 
— 
— 
— 
PlusFair value as of year end of outstanding and unvested equity awards granted during fiscal year
3,197,951 
1,680,575 
2,418,164 
1,520,657 
2,340,819 
Plus (Less)Change in fair value (comparing year end to the end of prior fiscal year) of equity awards granted in a prior fiscal year that are outstanding and unvested at year end
1,688,947 
(1,191,429)
1,606,730 
(3,973,866)
3,751,718 
PlusFair value of equity awards on vesting date for equity awards granted and vested during fiscal year
— 
— 
— 
— 
— 
Plus (Less)Change in fair value (comparing the vesting date to the end of the prior fiscal year) of equity awards granted in a prior fiscal year that vested during the fiscal year
23,363 
(42,295)
882,624 
(1,890,216)
668,703 
Average Compensation Actually Paid to Other NEOs
5,888,052 
1,520,473 
6,133,478 
(3,411,052)
8,009,991 
        
Compensation Actually Paid vs. Total Shareholder Return
477
        
Compensation Actually Paid vs. Net Income
479
        
Compensation Actually Paid vs. Company Selected Measure
481
        
Total Shareholder Return Vs Peer Group
477
        
Tabular List, Table
Financial Performance Measures(1)
Organic revenue growthOperating profit
Earnings per share (diluted)ROIC
        
Total Shareholder Return Amount $ 135.34 82.71 111.04 81.61 131.73
Peer Group Total Shareholder Return Amount 148.36 129.46 126.21 123.67 126.13
Net Income (Loss) $ 1,059,500,000 $ 887,900,000 $ 845,000,000.0 $ 679,100,000 $ 744,800,000
Company Selected Measure Amount 0.10 0.06 0.09 0.07 0.16
PEO Name Jonathan J. Mazelsky        
Additional 402(v) Disclosure
Pursuant to Section 953(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 402(v) of Regulation S-K, we are required to provide annual disclosure of certain information to describe the relationship between “compensation actually paid” to our CEO and other NEOs and our financial performance. For further information regarding our compensation philosophy and how executive compensation aligns with performance, refer to the discussion under “Compensation Discussion and Analysis” beginning on page 78.
The following pay versus performance table sets forth information required by Item 402(v) of Regulation S-K, including: (i) the total compensation earned by our CEO (as reported on our Summary Compensation Table), (ii) the “compensation actually paid” to our CEO (calculated in accordance with Item 402(v) of Regulation S-K), (iii) the average of the total compensation earned by our other NEOs (derived from our Summary Compensation Table), (iv) the average “compensation actually paid” to our other NEOs (calculated in accordance with Item 402(v) of Regulation S-K), (v) our net income and (vi) our organic revenue growth rate, in each case, for each of the covered fiscal years of 2021, 2022, 2023, 2024 and 2025, as well as our cumulative total shareholder return and that of the S&P 500 Health Care Index (our pay versus performance peer group) over such period.
Equity values used to determine the deductions and additions set forth in the tables in notes (2) and (3) above to calculate “compensation actually paid” for our CEO and average “compensation actually paid” for our other NEOs are calculated in accordance with FASB ASC Topic 718. Adjustments with respect to stock option awards have been made as of each measurement date using the stock price as of the measurement date and updated assumptions (i.e., term, volatility and risk free rates) as of the relevant measurement date in accordance with
U.S. GAAP. The methodology used to develop the valuation assumptions as of each relevant measurement date does not differ materially from those disclosed at the time of grant. In the case of PSUs, the valuation assumptions used to calculate the fair market value include the stock price, as well as the probable outcome of the performance vesting conditions, as of the applicable measurement date.
The measurement period to calculate total shareholder return (TSR) begins as of market close on December 31, 2020 and ends on December 31, 2021, 2022, 2023, 2024 and 2025, as applicable. The calculation of TSR assumes an initial investment of $100 as of the close of trading on December 31, 2020, and assumes dividends, if any, were reinvested.
As detailed earlier under “Compensation Discussion and Analysis” beginning on page 78, we seek to create alignment between management and shareholder interests. We do so, in part, by compensating our NEOs primarily with variable and “at-risk” compensation elements. In particular, a majority of the value of our NEOs’ target total direct compensation is in the form of long-term equity awards. As a result, the increase in our stock price during 2025 resulted in “compensation actually paid” for our CEO and average “compensation actually paid” for our other NEOs that was significantly higher than the corresponding total compensation amounts reported in the Summary Compensation Table for 2025.
The following graphs describe the relationship between the annual total compensation actually paid to our CEO, the average annual total compensation actually paid to our other NEOs, the total shareholder return of our stock, the total shareholder return of the S&P 500 Health Care Index, our net income and our organic revenue growth rate, as each is disclosed in the pay versus performance table above.
Pursuant to Item 402(v)(6) of Regulation S-K, we are required to provide a tabular list of at least three, and up to seven, financial performance measures which in our assessment represent the most important financial performance measures used by us to link compensation actually paid to our NEOs, for 2025, to our performance.
For a description of the financial performance measures and how they factor into our annual performance-based cash bonus program, refer to the discussion under “Our Financial Performance Factor” beginning on page 95. 		       
Measure:: 1          
Pay vs Performance Disclosure          
Name Organic revenue growth        
Non-GAAP Measure Description For a discussion of how organic revenue growth was used by IDEXX to link “compensation actually paid” to our NEOs in 2025 to our financial performance, refer to the discussion under “Our Financial Performance Factor” beginning on page 95. Organic revenue growth is a non-GAAP financial measure. Information regarding organic revenue growth and its calculation and reconciliation for 2025 is provided in Appendix A. While we use a variety of financial performance measures for the purpose of evaluating performance as part of our executive compensation program, we have determined that organic revenue growth is the financial performance measure that, in our assessment, represents the most important performance measure (that is not otherwise required to be disclosed in the table) used in 2025 to link “compensation actually paid” to the NEOs to our performance because it is the metric with the highest weighting in the financial performance factor portion of our 2025 annual performance-based cash bonus plan and is one of two equally weighted metrics used in determining achievement against the performance vesting conditions for our PSU awards.        
Measure:: 2          
Pay vs Performance Disclosure          
Name Earnings per share (diluted)        
Measure:: 3          
Pay vs Performance Disclosure          
Name Operating profit        
Measure:: 4          
Pay vs Performance Disclosure          
Name ROIC        
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ (5,399,881) $ (5,199,755) $ (2,187,697) $ (1,937,696) $ (1,500,029)
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 17,786,572 6,143,454 10,282,274 6,449,518 8,858,781
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 9,606,182 (5,404,510) 6,759,528 (15,299,044) 13,640,628
PEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 591,381 (1,016,729) 2,864,627 (6,942,713) 2,644,866
PEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
PEO | Aggregate Grant Date Fair Value of Option Award Amounts Reported in Summary Compensation Table [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (5,400,001) (5,200,032) (6,562,842) (5,812,593) (4,499,229)
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (999,886) (1,346,745) (662,577) (462,560) (399,899)
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 3,197,951 1,680,575 2,418,164 1,520,657 2,340,819
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 1,688,947 (1,191,429) 1,606,730 (3,973,866) 3,751,718
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 23,363 (42,295) 882,624 (1,890,216) 668,703
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (81,164) 0 0 0 0
Non-PEO NEO | Aggregate Grant Date Fair Value of Option Award Amounts Reported in Summary Compensation Table [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ (999,957) $ (1,346,841) $ (1,425,027) $ (1,387,558) $ (1,199,793)