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Net Irrigate L L C [Member] Net Irrigate, LLC [Member] Location, Statement of Financial Position, Balance [Axis] Proceeds from Hedge, Investing Activities Proceeds from settlement of net investment hedge FieldWise, LLC [Member] Field Wise L L C [Member] FieldWise, LLC. Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization [Abstract] Property, plant, and equipment: Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income (loss): Customer Relationships [Member] Disaggregation of Revenue [Table Text Block] Schedule of Disaggregation of Revenue by Segment Segment Reporting [Table Text Block] Schedule of Segment Reporting Information, by Segment Restricted stock units settled in cash. 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Standard and Extended Product Warranty Accrual, Decrease for Payments Warranty claims paid during the period Standard and Extended Product Warranty Accrual, Decrease for Payments, Total Long Term Debt Maturities Repayments Of Principal After Year Two Long Term Debt Maturities Repayments Of Principal After Year Two Thereafter Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Net change in cash and cash equivalents Entity Current Reporting Status Entity Current Reporting Status Fair Value, Inputs, Level 1 [Member] Level 1 [Member] Pessl Instruments GmbH. Pessl Instruments GmbH [Member] Pessl Instruments GmbH [Member] Summary of undiscounted environmental remediation liability classifications. 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International [Member] International [Member] Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Liabilities and Equity [Abstract] LIABILITIES AND SHAREHOLDERS' EQUITY Payments to Acquire Equity Method Investments Purchase of equity method investment Operating Income (Loss) Total operating income Operating income Segment operating income Earn out liability fair value. 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Discrete income tax expense Long-Term Debt, Type [Axis] Long-term Debt, Type Consolidation Items [Domain] Liabilities discounted risk free interest rate. Liabilities Discounted Risk Free Interest Rate Liabilities discounted risk Free interest rate Employee-related Liabilities, Current Compensation and benefits Employee-related Liabilities, Current, Total Treasury Stock, Shares, Acquired Number of shares of common stock repurchased during the period Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Equity Method Investments and Joint Ventures Disclosure [Text Block] Equity Method Investment Earnings Per Share [Abstract] Earnings per share: Equity [Abstract] Accounts Receivable, Allowance for Credit Loss, Current Receivables, allowance Measurement Frequency [Axis] Measurement Frequency Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Entity Tax Identification Number Entity Tax Identification Number Series 2006A bonds. Series2006a Bonds [Member] Elecsys Series 2006A Bonds [Member] Treasury Stock, Common, Shares Beginning balance, shares Ending Balance, shares Equity Component [Domain] Equity Component Entity Address, City or Town Entity Address, City or Town Standard and Extended Product Warranty Accrual, Increase for Warranties Issued Liabilities accrued for warranties during the period Standard and Extended Product Warranty Accrual, Increase for Warranties Issued, Total Business Combination [Axis] Business Acquisition Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service Long-Term Debt, Maturity, Year One 1 year Income Tax Paid, after Refund Received Income taxes paid, net of refunds Income Taxes Paid, Net, Total Segments [Domain] Segments Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Equity Method Investments Equity method investment Concentration Risk Type [Axis] Concentration Risk Type Schedule of Debt [Table Text Block] Schedule of Long-Term Debt Commercial Paper [Member] Corporate Segment [Member] Corporate Segment Antidilutive Security, Excluded EPS Calculation [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Derivative Asset, Subject to Master Netting Arrangement, before Offset Derivative assets Derivative Asset, Fair Value, Gross Asset, Total Contract with Customer, Liability, Current Contract liabilities Purchases of marketable securities Payments to Acquire Marketable Securities Payments to Acquire Marketable Securities, Total Irrigation. Irrigation [Member] Irrigation [Member] Liability, Defined Benefit Pension Plan, Noncurrent Pension benefits liabilities Statement [Table] Statement [Table] Share-Based Payment Arrangement, Expense Share-based compensation expense Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Earnings before income taxes Entity Shell Company Entity Shell Company Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash used in investing activities Statement [Line Items] Statement [Line Items] 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] Maximum [Member] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service Debt Disclosure [Abstract] Increase (Decrease) in Other Operating Liabilities Other current liabilities Increase (Decrease) in Other Operating Liabilities, Total Investment Income, Interest Interest income, net Business Combination [Domain] Business Acquisition, Acquiree Business Combination, Voting Equity Interest Acquired, Percentage Percentage of non-controlling interest Percentage of non-controlling minority interest Concentration Risk Benchmark [Axis] Concentration Risk Benchmark Payment, Tax Withholding, Share-Based Payment Arrangement Common stock withheld for payroll tax obligations Share withheld for payroll tax obligations Assets, Current [Abstract] Current assets: Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Defined benefit pension plan adjustment, net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total Document Fiscal Year Focus Document Fiscal Year Focus Statement of Comprehensive Income [Abstract] Business Combination [Line Items] Forecast [Member] Transferred at Point in Time [Member] Point in Time [Member] Investment Income [Table] Operating Lease, Liability, Noncurrent Operating lease liabilities Contract with Customer, Liability, Revenue Recognized Revenue recognized Earnings Per Share, Basic, Other Disclosure [Abstract] Shares used in computing earnings per share: Share Repurchase Program [Table] Treasury Stock, Value Treasury Stock, Value, Total Treasury Stock, Value, Beginning Balance Treasury Stock, Value, Ending Balance Less treasury stock - at cost, 9,030, 8,300, and 8,363 shares, respectively Additional Paid in Capital, Common Stock Capital in excess of stated value Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock, Ending Balance Security Exchange Name Security Exchange Name Revenues Operating revenues Total operating revenues Total operating revenues New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements Entity Address, State or Province Entity Address, State or Province Discrete Income Tax Benefit Discrete income tax benefit. Discrete benefit Summary of Identifiable Intangible Assets at Fair Value Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block] Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Amendment Flag Amendment Flag Selling expense Selling Expense Share-Based Payment Arrangement [Text Block] Share-Based Compensation Debt Instrument [Axis] Debt Instrument Other Nonoperating Income (Expense) Other Nonoperating Income (Expense), Total Other (expense) income, net Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Corporate Bond Securities [Member] Corporate Bonds [Member] City Area Code City Area Code Interest expense Interest Expense, Nonoperating Interest Expense, Nonoperating, Total Interest expense Organization, Consolidation and Presentation of Financial Statements [Abstract] Accrual for Environmental Loss Contingencies, Total Accrual for Environmental Loss Contingencies Current environmental remediation accrual Accrual for Environmental Loss Contingencies, Beginning Balance Accrual for Environmental Loss Contingencies, Ending Balance Schedule Of Share Based Payment Award Other Than Options Valuation Assumptions [Table Text Block] Schedule of Assumptions Used to Estimate Fair Value of TSR Portion of Awards Granted Tabular disclosure of the significant assumptions used during the year to estimate the fair value of other than options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Operating Expenses [Abstract] Operating expenses: Inventories Inventory Disclosure [Text Block] Percentage of excise tax. Percentage of Excise Tax Common Stock, Par or Stated Value Per Share Common stock, par value LIFO, basis amount LIFO Inventory Amount Liabilities, Current Total current liabilities Other Liabilities Disclosure [Text Block] Other Current Liabilities Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Cost Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Ending Balance Schedule of Product Warranty Liability [Table Text Block] Schedule of Product Warranty Liability Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Segment Reporting [Text Block] Business Segments Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Unrealized foreign currency transaction gain Environmental Remediation Site [Domain] Environmental Remediation Site Trading Symbol Trading Symbol Share Repurchase Program [Domain] Geographical [Axis] Geographical Entity Emerging Growth Company Entity Emerging Growth Company Additional Paid-in Capital [Member] Capital In Excess Of Stated Value [Member] Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Issuance of common shares under share compensation plans, net, shares Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total Less adjustment to LIFO value Less adjustment to LIFO value Inventory, LIFO Reserve Less adjustment to LIFO value Other Liabilities, Noncurrent Other noncurrent liabilities Other Liabilities, Noncurrent, Total Payments of Dividends Dividends paid Payments of Dividends, Total US Treasury Securities [Member] U.S. Treasury Securities [Member] Business Combination [Table] Cover [Abstract] Revenue from Contract with Customer [Abstract] Derivative liabilities Derivative Liability, Current Long-Term Debt, Type [Domain] Long-term Debt, Type Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss, net Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Share-Based Payment Arrangement, Noncash Expense Share-based compensation expense Share-based Payment Arrangement, Noncash Expense, Total Adjustments to reconcile net earnings to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Fair Value Disclosures [Abstract] Cash and Cash Equivalent Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and Cash Equivalents, at Carrying Value, Ending Balance Share Repurchase Program, Remaining Authorized, Amount Remaining amount available under the repurchase program Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash used in financing activities Fair Value, Nonrecurring [Member] Fair Value, Measurements, Nonrecurring [Member] Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net Other noncurrent assets and liabilities Entity Filer Category Entity Filer Category Debt Instrument, Name [Domain] Debt Instrument, Name Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description Lindsay, Nebraska facility. Lindsay Nebraska Facility [Member] Lindsay, Nebraska Facility [Member] Marketable Securities, Current Marketable securities Marketable Securities, Current, Total Increase (Decrease) in Accounts Receivable Receivables Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Property, plant, and equipment, net Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Revenue from Contract with Customer, Excluding Assessed Tax Revenue from Contract with Customer, Excluding Assessed Tax, Total Revenue from the contracts with customers Beginning balance, shares Shares, Outstanding Ending Balance, shares Inventory Disclosure [Abstract] Derivative Liability, Subject to Master Netting Arrangement, before Offset Derivative Liability, Fair Value, Gross Liability, Total Derivative liabilities Segment Reporting [Abstract] Other Assets, Current Other current assets, net Other current assets Entity Address, Postal Zip Code Entity Address, Postal Zip Code Statement of Financial Position [Abstract] Local Phone Number Local Phone Number