Segment Reporting [Abstract]
Segment Reporting
Segment Reporting Disclosure [Text Block]
Earnings Per Share [Abstract]
Shares outstanding for basic earnings per share:
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Shares outstanding for basic earnings per share (in shares)
Weighted Average Number of Shares Outstanding, Basic
Shares outstanding for diluted earnings per share:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Dilutive effect of share-based payment awards (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Shares outstanding for diluted earnings per share (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Schedule of reconciliation of shares outstanding for basic and diluted earnings per share
Schedule of Weighted Average Number of Shares [Table Text Block]
Schedule of number of anti-dilutive stock options
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Notes
Senior Notes [Member]
Lender Name [Axis]
Lender Name [Axis]
Line of Credit Facility, Lender [Domain]
Line of Credit Facility, Lender [Domain]
Uncommitted Shelf Facility
Uncommitted Shelf Facility [Member]
Uncommitted Shelf Facility [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Series C Notes
Series C Notes [Member]
Series C Notes [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Agreement term
Agreement Term
Agreement Term
Debt instrument, face amount
Debt Instrument, Face Amount
Proceeds from issuance
Proceeds from Issuance of Long-term Debt
Debt, amount requested to be purchased
Debt Instrument, Requested Amount To Be Purchased
Debt Instrument, Requested Amount To Be Purchased
Maturity term
Debt Instrument, Term
Per annum rate
Debt Instrument, Interest Rate, Stated Percentage
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Product and Service [Axis]
Product and Service [Axis]
Product and Service [Domain]
Product and Service [Domain]
Volume commitment programs
Volume Commitment Programs [Member]
Volume Commitment Programs [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Revenue
Revenue from Contract with Customer, Excluding Assessed Tax
Commitment contract assets
Contract with Customer, Asset, Net
Commitment contract assets reclassified to accounts receivable
Contract with Customer, Asset, Reclassified to Receivable
Statement of Financial Position [Abstract]
ASSETS
Assets [Abstract]
Current Assets:
Assets, Current [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Accounts receivable, net of reserves of $4,566 in 2019 and $4,702 in 2018
Accounts Receivable, Net, Current
Inventories
Inventory, Net
Other current assets
Other Assets, Current
Total current assets
Assets, Current
Long-Term Assets:
Assets, Noncurrent [Abstract]
Property and equipment, net
Property, Plant and Equipment, Net
Operating lease right-of-use assets (Notes 2 and 6)
Operating Lease, Right-of-Use Asset
Goodwill
Goodwill
Intangible assets, net
Intangible Assets, Net (Excluding Goodwill)
Other long-term assets
Other Assets, Noncurrent
Total long-term assets
Assets, Noncurrent
TOTAL ASSETS
Assets
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Liabilities and Equity [Abstract]
Current Liabilities:
Liabilities, Current [Abstract]
Accounts payable
Accounts Payable, Current
Accrued liabilities
Accrued Liabilities, Current
Line of credit
Line of Credit, Current
Current portion of deferred revenue
Contract with Customer, Liability, Current
Total current liabilities
Liabilities, Current
Long-Term Liabilities:
Liabilities, Noncurrent [Abstract]
Deferred income tax liabilities
Deferred Income Tax Liabilities, Net
Long-term debt
Secured Long-term Debt, Noncurrent
Long-term deferred revenue, net of current portion
Contract with Customer, Liability, Noncurrent
Long-term operating lease liabilities (Notes 2 and 6)
Operating Lease, Liability, Noncurrent
Other long-term liabilities
Other Liabilities, Noncurrent
Total long-term liabilities
Liabilities, Noncurrent
Total liabilities
Liabilities
Commitments and Contingencies (Note 14)
Commitments and Contingencies
Stockholders’ Equity (Deficit):
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common stock, $0.10 par value: Authorized: 120,000 shares; Issued: 105,345 shares in 2019 and 105,087 shares in 2018; Outstanding: 86,054 shares in 2019 and 86,100 shares in 2018
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital, Common Stock
Deferred stock units: Outstanding: 162 units in 2019 and 2018
Common Stock, Other Value, Outstanding
Retained earnings
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Treasury stock, at cost: 19,290 shares in 2019 and 18,988 shares in 2018
Treasury Stock, Value
Total IDEXX Laboratories, Inc. stockholders’ equity (deficit)
Stockholders' Equity Attributable to Parent
Noncontrolling interest
Stockholders' Equity Attributable to Noncontrolling Interest
Total stockholders’ equity (deficit)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)
Liabilities and Equity
Statement of Cash Flows [Abstract]
Cash Flows from Operating Activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization
Benefit of deferred income taxes
Deferred Income Tax Expense (Benefit)
Share-based compensation expense
Share-based Compensation
Other
Other Operating Activities, Cash Flow Statement
Changes in assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Inventories
Increase (Decrease) in Inventories
Other assets and liabilities
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Accounts payable
Increase (Decrease) in Accounts Payable, Trade
Deferred revenue
Increase (Decrease) in Contract with Customer, Liability
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash Flows from Investing Activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of property and equipment
Payments to Acquire Property, Plant, and Equipment
Purchase of marketable securities
Payments to Acquire Debt Securities, Available-for-sale
Proceeds from the sale and maturities of marketable securities
Proceeds from Sale of Debt Securities, Available-for-sale
Net cash (used) provided by investing activities
Net Cash Provided by (Used in) Investing Activities
Cash Flows from Financing Activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayments on revolving credit facilities, net
Proceeds from (Repayments of) Other Debt
Issuance of senior notes
Proceeds from Issuance of Senior Long-term Debt
Debt issuance costs
Payments of Debt Issuance Costs
Payment of acquisition-related contingent consideration
Payment for Contingent Consideration Liability, Financing Activities
Repurchases of common stock
Payments for Repurchase of Common Stock
Proceeds from exercises of stock options and employee stock purchase plans
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options
Shares withheld for statutory tax withholding on restricted stock
Payments Related to Tax Withholding for Share-based Compensation
Net cash used by financing activities
Net Cash Provided by (Used in) Financing Activities
Net effect of changes in exchange rates on cash
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Net decrease in cash and cash equivalents
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Cash and cash equivalents at beginning of period
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Cash and cash equivalents at end of period
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of accumulated other comprehensive income
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Summary of reclassifications out of other comprehensive income
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Accrued Liabilities, Current [Abstract]
Accrued expenses
Other Accrued Liabilities, Current
Accrued employee compensation and related expenses
Employee-related Liabilities, Current
Accrued taxes
Accrued Income Taxes, Current
Accrued customer incentives and refund obligations
Accrued Marketing Costs, Current
Current lease liabilities (Notes 2 and 6)
Operating Lease, Liability, Current
Accrued liabilities
Fair Value Disclosures [Abstract]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Other Assets, Noncurrent [Abstract]
Prepaid expenses
Prepaid Expense, Current
Taxes receivable
Income Taxes Receivable
Customer acquisition costs
Deferred Costs, Current
Contract assets
Contract with Customer, Asset, Net, Current
Deferred sales commissions
Deferred Sales Commission, Current
Deferred Sales Commission, Current
Other assets
Other Assets, Miscellaneous, Current
Other current assets
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Extended warranties and post contract support
Extended Warranties And Post Contract Support [Member]
Extended Warranties and Post-Contract Support [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Extended product warranty, term
Extended Product Warranty, Term
Extended Product Warranty, Term
Post-contract support contract, term
Post-contract Support Contract, Term
Post-contract Support Contract, Term
Deferred revenue
Contract with Customer, Liability
Deferred revenue recognized
Contract with Customer, Liability, Revenue Recognized
Estimation of future revenues
Revenue, Remaining Performance Obligation, Amount
Instrument rebate programs
Instrument Rebate Programs [Member]
Instrument Rebate Programs [Member]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Accumulated Net Gain (Loss) from Cash Flow Hedges
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Amount of (loss) gain reclassified from accumulated other comprehensive income into income
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue
Cost of Revenue
Tax expense (benefits)
Income Tax Expense (Benefit)
Net income
Schedule of other current assets
Schedule of Other Current Assets [Table Text Block]
Schedule of other long-term assets
Schedule of Other Assets, Noncurrent [Table Text Block]
Equity [Abstract]
Schedule of common stock repurchases
Class of Treasury Stock [Table Text Block]
Leases [Abstract]
2019
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year
2020
Operating Leases, Future Minimum Payments, Due in Two Years
2021
Operating Leases, Future Minimum Payments, Due in Three Years
2022
Operating Leases, Future Minimum Payments, Due in Four Years
2023
Operating Leases, Future Minimum Payments, Due in Five Years
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Earnings Per Share
Earnings Per Share [Text Block]
Operating-type reagent rental programs
Operating-type Reagent Rental Programs [Member]
Operating-type Reagent Rental Programs [Member]
Reagent rental programs
Reagent Rental Programs [Member]
Reagent Rental Programs [Member]
Lease receivable asset
Sales-type Lease, Lease Receivable
Instruments transferred to property and equipment
Property, Plant and Equipment, Transfers and Changes
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Foreign Currency Fair Value Hedge Derivative [Table]
Foreign Currency Fair Value Hedge Derivative [Table]
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Cash flow hedging
Cash Flow Hedging [Member]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Derivatives and non-derivatives designated as hedging instruments
Designated as Hedging Instrument [Member]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Foreign currency exchange contracts
Foreign Exchange Contract [Member]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Costs of revenue
Cost of Sales [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Cost of revenue
Amount of (loss) gain reclassified from accumulated other comprehensive income into income
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax
Inventory, Net [Abstract]
Raw materials
Inventory, Raw Materials, Net of Reserves
Work-in-process
Inventory, Work in Process, Net of Reserves
Finished goods
Inventory, Finished Goods, Net of Reserves
Inventories
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Scenario, Forecast
Scenario, Forecast [Member]
Cross currency swaps
Cross Currency Interest Rate Contract [Member]
Series C Senior Note
Series C Senior Note [Member]
Series C Senior Note [Member]
Derivative [Line Items]
Derivative [Line Items]
Estimated net amount of gains (losses) expected to be reclassified out of accumulated other comprehensive income and into earnings within next 12 months
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months
Cash flow hedge, hedge percentage of estimated exposure from intercompany products purchases and sales
Cash Flow Hedge, Hedge Percentage Of Estimated Exposure From Intercompany Products Purchases And Sales
Estimated portion of hedged foreign currency exposure related to intercompany product purchases and sales.
General duration of foreign currency exchange contracts
Maximum Length of Time, Foreign Currency Cash Flow Hedge
Notional amount of foreign currency exchange contracts
Derivative, Notional Amount
Stated interest rate
(Loss) gain from net investment hedge
Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax
Proceeds from hedge
Proceeds from Hedge, Investing Activities
Excluded component recognized as reduction of interest
Gain (Loss) on Components Excluded from Assessment of Interest Rate Cash Flow Hedge Effectiveness
Up front customer loyalty programs and volume commitment programs
Up Front Customer Loyalty Programs And Volume Commitment Programs [Member]
Up-Front Customer Loyalty Programs And Volume Commitment Programs [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, remaining performance obligation, expected timing of satisfaction, period
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Revenue, remaining performance obligation, percentage
Revenue, Remaining Performance Obligation, Percentage
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Foreign currency borrowings designated as net investment hedge on the balance sheet
Foreign Currency Borrowings Designated As Net Investment Hedge On Balance Sheet [Member]
Foreign Currency Borrowings Designated As Net Investment Hedge On The Balance Sheet [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Other current assets
Other Current Assets [Member]
Other long-term assets
Other Noncurrent Assets [Member]
Accrued liabilities
Accrued Liabilities [Member]
Other long-term liabilities
Other Noncurrent Liabilities [Member]
Long-term debt
Long-term Debt [Member]
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Hedging assets, total derivative instruments presented as cash flow hedges on the balance sheet
Derivative Asset, Fair Value, Gross Asset
Hedging assets, gross amounts subject to master netting arrangements not offset on the balance sheet
Derivative Asset, Not Offset, Policy Election Deduction
Hedging assets, net amount
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election
Hedging liabilities, total hedging instruments presented on the balance sheet
Derivative Liability, Fair Value, Gross Liability
Hedging liabilities, gross amounts subject to master netting arrangements not offset on the balance sheet
Derivative Liability, Not Offset, Policy Election Deduction
Hedging liabilities, net amount
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election
Accrued taxes
Accrued Income Taxes, Noncurrent
Other accrued long-term expenses
Other Accrued Liabilities, Noncurrent
Other long-term liabilities
Income Tax Disclosure [Abstract]
Effective income tax rate
Effective Income Tax Rate Reconciliation, Percent
Up front customer loyalty programs
Up Front Customer Loyalty Programs [Member]
Up-Front Customer Loyalty Programs [Member]
Capitalized customer acquisition costs
Capitalized Contract Cost, Gross
Recognized as a reduction of revenue
Capitalized Contract Cost, Amortization
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
Money market funds
Money Market Funds [Member]
Equity mutual funds
Equity Mutual Funds [Member]
Equity Mutual Funds [Member]
Deferred compensation
Deferred Compensation [Member]
Deferred Compensation [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Fair Value, Assets Measured on Recurring Basis, Disclosure Items [Domain]
Fair Value Hierarchy and NAV [Domain]
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Significant Other Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Significant Unobservable Inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents
Cash and Cash Equivalents, Fair Value Disclosure
Other long-term assets
Other Assets, Fair Value Disclosure
Derivative assets
Derivative Asset
Derivative liabilities
Derivative Liability
Other liabilities
Other Liabilities, Fair Value Disclosure
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Total
AOCI Attributable to Parent [Member]
Unrealized (Loss) Gain on Investments, Net of Tax
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Unrealized Gain (Loss) on Derivative Instruments, Net of Tax
Unrealized (Loss) Gain on Net Investment Hedge, Net of Tax
Accumulated Net Gain Loss From Investment Hedges Attributable To Parent [Member]
Accumulated Net Gain Loss From Investment Hedges Attributable to Parent [Member]
Cumulative Translation Adjustment
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period
Other comprehensive income (loss) before reclassifications
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Gains reclassified from accumulated other comprehensive income
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Balance end of period
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Leases
Lessee, Operating Leases [Text Block]
Cag Diagnostics recurring revenue
Cag Diagnostics Recurring Revenue [Member]
CAG Diagnostics Recurring Revenue [Member]
IDEXX VetLab consumables
Vetlab Consumables [Member]
Vetlab Consumables [Member]
Rapid assay products
Rapid Assay Products [Member]
Rapid Assay Products [Member]
Reference laboratory diagnostic and consulting services
Reference Laboratory Diagnostic And Consulting Services [Member]
Reference Laboratory Diagnostic And Consulting Services [Member]
CAG Diagnostics service and accessories
Cag Diagnostics Service And Accessories [Member]
CAG Diagnostics Service And Accessories [Member]
CAG Diagnostics capital - instruments
Cag Diagnostic Captail Vetlab Instruments [Member]
CAG Diagnostic Captail - VetLab Instruments [Member]
Veterinary software, services and diagnostic imaging systems
Veterinary Software Services And Diagnostic Imaging Systems [Member]
Veterinary Software, Services and Diagnostic Imaging Systems [Member]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
CAG segment revenue
Cag Segment [Member]
CAG Segment [Member]
Water segment revenue
Water Segment [Member]
Water Segment [Member]
LPD segment revenue
Lpd Segment [Member]
LPD Segment [Member]
Other segment revenue
Other Segment [Member]
Other Segment [Member]
Total revenue
Other Current and Long-Term Assets
Other Assets Disclosure [Text Block]
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies And Guarantees
Commitments Contingencies and Guarantees [Text Block]
Shares repurchased in the open market (in shares)
Treasury Stock, Shares, Acquired, Net Of Tax Withholdings
Open market common stock repurchases.
Shares acquired through employee surrender for statutory tax withholding (in shares)
Shares Paid for Tax Withholding for Share Based Compensation
Total shares repurchased (in shares)
Treasury Stock, Shares, Acquired
Cost of shares repurchased in the open market
Treasury Stock Value Acquired Cost Method, Net Of Tax Withholdings
Cost of open market common stock repurchases.
Cost of shares for employee surrenders
Adjustments Related to Tax Withholding for Share-based Compensation
Total cost of shares
Treasury Stock, Value, Acquired, Par Value Method
Average cost per share - open market repurchases (in dollars per share)
Treasury Stock Acquired Average Cost Per Share, Open Market Repurchase
Treasury Stock Acquired Average Cost Per Share, Open Market Repurchase
Average cost per share - employee surrenders (in dollars per share)
Treasury Stock Acquired Average Cost Per Share, Employee Surrenders
Treasury Stock Acquired Average Cost Per Share, Employee Surrenders
Average cost per share - total (in dollars per share)
Treasury Stock Acquired, Average Cost Per Share
Summary of segment performance
Schedule of Segment Reporting Information, by Segment [Table Text Block]
2019 (remainder of year)
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year
2020
Lessee, Operating Lease, Liability, Payments, Due Year Two
2021
Lessee, Operating Lease, Liability, Payments, Due Year Three
2022
Lessee, Operating Lease, Liability, Payments, Due Year Four
2023
Lessee, Operating Lease, Liability, Payments, Due Year Five
Thereafter
Lessee, Operating Lease, Liability, Payments, Due after Year Five
Total lease payments
Lessee, Operating Lease, Liability, Payments, Due
Less imputed interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Total
Operating Lease, Liability
Current operating lease liabilities, included in accrued liabilities
Long-term operating lease liabilities
Weighted average remaining lease term - operating leases
Operating Lease, Weighted Average Remaining Lease Term
Weighted average discount rate - operating leases
Operating Lease, Weighted Average Discount Rate, Percent
Maturities of operating lease liabilities
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Supplemental cash flow information
Lease, Cost [Table Text Block]
SaaS Subscription, term of contract
SaaS Subscription, Term of Contract
SaaS Subscription, Term of Contract
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Stock Options
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average number of shares underlying anti-dilutive shares (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Accounts receivable, reserves
Allowance for Doubtful Accounts Receivable, Current
Common stock, par value (in USD per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Common stock, shares issued (in shares)
Common Stock, Shares, Issued
Common stock, shares outstanding (in shares)
Common Stock, Shares, Outstanding
Deferred stock units, outstanding (in shares)
Common Stock, Other Shares, Outstanding
Treasury stock, shares (in shares)
Treasury Stock, Shares
Document And Entity Information [Abstract]
Document and Entity Information [Abstract]
Document Type
Document Type
Amendment Flag
Amendment Flag
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Small Business
Entity Small Business
Entity Common Stock, Outstanding (in shares)
Entity Common Stock, Shares Outstanding
Trading Symbol
Trading Symbol
Income Taxes
Income Tax Disclosure [Text Block]
Accounting Policies [Abstract]
New Accounting Pronouncements Adopted
New Accounting Pronouncements, Policy [Policy Text Block]
Share-Based Compensation
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Inventories
Inventory, Policy [Policy Text Block]
Earnings Per Share
Earnings Per Share, Policy [Policy Text Block]
Fair Value Measurements
Fair Value of Financial Instruments, Policy [Policy Text Block]
Derivatives
Derivatives, Policy [Policy Text Block]
Lease revenue
Lease Income
Lease revenue
Operating Leases, Income Statement, Lease Revenue
Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Income Statement [Abstract]
Statement [Table]
Statement [Table]
Product revenue
Product [Member]
Service revenue
Service [Member]
Statement [Line Items]
Statement [Line Items]
Revenue:
Revenues [Abstract]
Cost of Revenue:
Cost of Revenue [Abstract]
Cost of service revenue
Cost of Goods and Services Sold
Gross profit
Gross Profit
Expenses:
Operating Expenses [Abstract]
Sales and marketing
Selling and Marketing Expense
General and administrative
General and Administrative Expense
Research and development
Research and Development Expense
Income from operations
Operating Income (Loss)
Interest expense
Interest Expense
Interest income
Interest and Other Income
Income before provision for income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Provision for income taxes
Net income
Less: Net income attributable to noncontrolling interest
Net Income (Loss) Attributable to Noncontrolling Interest
Net income attributable to IDEXX Laboratories, Inc. stockholders
Net Income (Loss) Attributable to Parent
Earnings per Share:
Basic (in dollars per share)
Earnings Per Share, Basic
Diluted (in dollars per share)
Earnings Per Share, Diluted
Weighted Average Shares Outstanding:
Weighted Average Shares Outstanding [Abstract]
Weighted Average Shares Outstanding [Abstract]
Basic (in shares)
Diluted (in shares)
Schedule of accrued liabilities
Schedule of Accrued Liabilities [Table Text Block]
Schedule of other long-term liabilities
Other Noncurrent Liabilities [Table Text Block]
Inventories
Inventory Disclosure [Text Block]
Statement of Comprehensive Income [Abstract]
Tax expense from unrealized gain on investments
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax
Tax expense from unrealized gain (loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax
Tax expense from reclassification adjustment for (gain) loss included in net income
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation And Principles Of Consolidation
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Statement of Stockholders' Equity [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments
Operating Segments [Member]
Unallocated Amounts
Corporate, Non-Segment [Member]
CAG
Water
LPD
Other
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Income (loss) from operations
Interest expense, net
Interest Income (Expense), Nonoperating, Net
Repurchases Of Common Stock
Treasury Stock [Text Block]
Schedule of Adoption of New Leasing Standard
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
Geographical [Axis]
Geographical [Axis]
Segment, Geographical [Domain]
Geographical [Domain]
United States
UNITED STATES
Europe, the Middle East and Africa
Europe Middle East And Africa [Member]
Europe, the Middle East and Africa [Member]
Asia Pacific Region
Asia Pacific [Member]
Canada
CANADA
Latin America
Latin America [Member]
Accrued Liabilities
Other Liabilities Disclosure [Text Block]
Accounting Policies
Significant Accounting Policies [Text Block]
Share price at grant (in dollars per share)
Share Price
Expected stock price volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate
Expected term, in years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Risk-free interest rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Weighted average fair value of options granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Hedging Instruments
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Revenue Recognition
Revenue from Contract with Customer [Text Block]
Schedule of weighted averages of the assumptions used in estimating the fair value of stock option awards
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule of components of inventories
Schedule of Inventory, Current [Table Text Block]
Other assets
Other Assets [Member]
Amortization period
Contract with Customer, Amortization Period
Contract with Customer, Amortization Period
Deferred commission costs
Capitalized Contract Cost, Net, Noncurrent
Commissions expense recognized
Sales Commissions and Fees
Capitalized Contract Cost, Net
Capitalized Contract Cost, Net
Investment in long-term product supply arrangements
Prepaid Expense Other, Noncurrent
Customer acquisition costs
Deferred Costs, Noncurrent
Contract assets
Contract with Customer, Asset, Net, Noncurrent
Deferred sales commissions
Deferred income taxes
Deferred Income Tax Assets, Net
Other assets
Other Assets, Miscellaneous, Noncurrent
Other long-term assets
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2016-02
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets
Total long-term assets
TOTAL ASSETS
LIABILITIES
Liabilities [Abstract]
Total current liabilities
Total long-term liabilities
TOTAL LIABILITIES
Lease obligation liabilities
Straight-line lease liabilities
Stranded tax effects
Tax Cuts And Jobs Act Of 2017 Reclassification From Aoci To Retained Earnings Tax Effect
Tax Cuts And Jobs Act Of 2017 Reclassification From Aoci To Retained Earnings Tax Effect
Rent expense
Operating Lease, Expense
Other comprehensive income (loss), net of tax:
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Unrealized gain (loss) on net investment hedge
Unrealized gain on investments, net of tax expense of $128 in 2019 and $40 in 2018
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax
Unrealized gain (loss) on derivative instruments:
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]
Unrealized gain (loss), net of tax expense (benefit) of $531 in 2019 and $(377) in 2018
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Reclassification adjustment for (gain) loss included in net income, net of tax (expense) benefit of $(249) in 2019 and $250 in 2018
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax
Unrealized gain (loss) on derivative instruments
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax
Other comprehensive gain, net of tax
Other Comprehensive Income (Loss), Net of Tax
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Less: Comprehensive income attributable to noncontrolling interest
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Comprehensive income attributable to IDEXX Laboratories, Inc.
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Accumulated Other Comprehensive Income
Comprehensive Income (Loss) Note [Text Block]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Estimated fair value
Estimate of Fair Value Measurement [Member]
Carrying value
Reported Value Measurement [Member]
Long-term debt, fair value disclosure
Long-term Debt, Fair Value
Cash paid for operating leases obligations
Operating Lease, Payments
Right-of-use assets obtained in exchange for operating lease obligations
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Common Stock
Common Stock [Member]
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Deferred Stock Units
Deferred Stock Units [Member]
Deferred Stock Units [Member]
Retained Earnings
Retained Earnings [Member]
Accumulated Other Comprehensive Loss
Treasury Stock
Treasury Stock [Member]
Noncontrolling Interest
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance beginning of period (in shares)
Cumulative effect of accounting changes
Cumulative Effect of New Accounting Principle in Period of Adoption
Beginning balance, adjusted
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance
Other comprehensive income, net
Repurchases of common stock, net
Treasury Stock, Value, Acquired, Cost Method
Common stock issued under stock plans (in shares)
Stock Issued During Period, Shares, Share-based Compensation, Gross
Common stock issued under stock plans
Stock Issued During Period, Value, Share-based Compensation, Gross
Share-based compensation cost
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Balance end of period (in shares)
Fair value of share-based compensation awards, granted
Deferred Compensation Arrangement with Individual, Fair Value of Shares Issued
Unrecognized compensation expense, net of estimated forfeitures, for unvested share-based compensation awards outstanding
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized
Weighted average recognition period for unrecognized compensation expense, in years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Share-based compensation expense
Allocated Share-based Compensation Expense
Details of net investment hedges and Income Statement impact of hedging instruments
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Schedule of hedging instruments
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
Schedule of fair value of assets and liabilities measured on recurring basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Debt
Debt Disclosure [Text Block]
Payment term
Revenue, Performance Obligation, Payment Term
Revenue, Performance Obligation, Payment Term