Audit Information |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Audit Information [Abstract] | |
| Auditor Firm ID | 34 |
| Auditor Name | Deloitte & Touche LLP |
| Auditor Location | Minneapolis, Minnesota |
Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Statement of Comprehensive Income [Abstract] | |||
| Foreign currency translation adjustments, tax (expense) benefit | $ 1.8 | $ (0.2) | $ 0.8 |
| Pension and postretirement medical benefits, tax (expense) benefit | 0.5 | 0.3 | (0.3) |
| Cash flow hedge, tax (expense) benefit | (0.1) | (0.0) | 0.4 |
| Unrealized gain on debt securities, tax benefit | $ 0.1 | $ 0.1 | $ (0.0) |
Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Allowance for credit loss | $ 10.4 | $ 7.1 |
| Accumulated depreciation | $ 289.0 | $ 310.9 |
| Common stock, par value (in dollars per share) | $ 0.375 | $ 0.375 |
| Common stock, shares authorized (in shares) | 60,000,000 | 60,000,000 |
| Common stock, shares issued (in shares) | 17,846,681 | 18,849,456 |
| Common stock, shares outstanding (in shares) | 17,846,681 | 18,849,456 |
Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Statement of Cash Flows [Abstract] | |||
| Employee tax withholdings obligations | $ 3.1 | $ 3.8 | $ 1.7 |
Consolidated Statements of Equity (Parentheticals) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Statement of Stockholders' Equity [Abstract] | |||
| Shares withheld for taxes (in shares) | 35,950 | 34,511 | 23,622 |
| Dividends paid per common share (in dollars per share) | $ 1.195 | $ 1.135 | $ 1.075 |
Nature of Business |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Accounting Policies [Abstract] | |
| Nature of Business | Nature of Business Tennant Company ("the Company", "we", "us", or "our") is a world leader in designing, manufacturing and marketing solutions that empower customers to achieve quality cleaning performance, reduce environmental impact and help create a cleaner, safer, healthier world. The Company is committed to creating and commercializing breakthrough, sustainable cleaning innovations to enhance its broad suite of products, including floor maintenance and cleaning equipment, detergent-free and other sustainable cleaning technologies, aftermarket parts and consumables, equipment maintenance and repair service, and asset management solutions. Our products are used in many types of environments, including retail establishments, distribution centers, factories and warehouses, public venues such as arenas and stadiums, office buildings, schools and universities, hospitals and clinics, and more. Customers include contract cleaners to whom organizations outsource facilities maintenance as well as businesses that perform facilities maintenance themselves. The Company reaches these customers through the industry's largest direct sales and service organization and through a strong and well-supported network of authorized distributors worldwide.
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Significant Accounting Policies |
12 Months Ended |
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Dec. 31, 2025 | |
| Accounting Policies [Abstract] | |
| Significant Accounting Policies | Significant Accounting Policies Basis of Statement Presentation – The consolidated financial statements include the accounts of the Company and all subsidiaries in which we have a controlling financial interest. All intercompany transactions and accounts are eliminated in consolidation. Certain reclassifications to our previously reported financial information have been made to conform to the current period presentation. Use of Estimates – The preparation of our consolidated financial statements in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) requires us to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes, disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used in determining, among other items, sales promotions and incentives accruals, inventory valuation, warranty reserves, allowance for doubtful accounts, pension and postretirement accruals, useful lives for intangible assets, valuing investments, and future cash flows associated with impairment testing for goodwill and other long-lived assets. Actual results could differ from our estimates. Translation of Non-U.S. Currency – Foreign currency-denominated assets and liabilities have been translated to U.S. dollars at year-end exchange rates, while income and expense items are translated at average exchange rates prevailing during the year. Gains or losses resulting from translation are included as a separate component of accumulated other comprehensive loss ("AOCL"). The majority of translation adjustments are not adjusted for income taxes as substantially all translation adjustments relate to permanent investments in non-U.S. subsidiaries. Net foreign currency transaction losses are included in income before income taxes on the consolidated statements of income. Cash and Cash Equivalents – We consider all highly liquid investments with original maturities of three months or less from the date of purchase to be cash equivalents. Restricted Cash – We have a total of $0.2 million as of December 31, 2025 and 2024 that serves as collateral backing certain bank guarantees and is therefore restricted. This money is invested in time deposits. Restricted cash is recorded in cash, cash equivalents and restricted cash on the consolidated balance sheets. Receivables – Credit is granted to our customers in the normal course of business. Receivables are recorded at original carrying value less reserves for estimated uncollectible accounts and sales returns. To assess the collectability of these receivables, we perform ongoing credit evaluations of our customers’ financial condition. Through these evaluations, we may become aware of a situation where a customer may not be able to meet its financial obligations due to deterioration of its financial viability, credit ratings or bankruptcy. The reserve requirements are based on the best facts available to us and are reevaluated and adjusted as additional information becomes available. Our reserves are also based on amounts determined by using percentages applied to trade receivables, using a loss rate method. We considered the following in determining the expected loss rate: (1) historical loss rate, (2) macroeconomic factors, and (3) creditworthiness of customers. The historical loss rate is calculated by taking the yearly write-off expense, net of collections, as a percentage of the annual average balance of trade receivables for each of the past three years. An account is considered past-due or delinquent when it has not been paid within the contractual terms. Uncollectible accounts are written off against the reserves when it is deemed that a customer account is uncollectible. Inventories – Inventories are valued at the lower of cost or net realizable value. Cost is determined on a first-in, first-out (“FIFO”) basis except for inventories in North America, which are determined on a last-in, first-out (“LIFO”) basis. Cloud Computing Arrangements – We periodically enter into cloud computing arrangements to access and use third-party software in support of our operations. These arrangements primarily relate to the implementation and ongoing use of a new enterprise resource planning (“ERP”) system. We assess our cloud computing arrangements to determine whether the contract is a service contract or conveys a software license. For cloud computing arrangements that are accounted for as service contracts, we capitalize implementation costs incurred during the application development stage. Once the asset is ready for its intended use, the capitalized implementation costs are amortized as expense on a straight-line basis over the term of the service contract, which typically range from 10 to 15 years depending on the nature of the underlying asset. As of December 31, 2025 and 2024, we had capitalized implementation costs, net of amortization, of $53.4 million and $23.3 million, respectively, included in other assets within the consolidated balance sheets. Amortization expense for the implementation costs was $0.5 million for the year ended December 31, 2025, and is included in selling and administrative expenses within the consolidated statements of income. There was no amortization expense for implementation costs recorded in 2024 and 2023. Capitalized Interest – The interest cost on capital projects is capitalized and included in the cost of the project. Capitalization commences with the first expenditure for the project and continues until the project is substantially complete and ready for its intended use. Total interest expense incurred was $12.6 million, $13.6 million and $17.0 million for the years ended December 31, 2025, 2024, and 2023, respectively, of which $2.3 million and $1.0 million was capitalized as of December 31, 2025 and 2024, respectively. Property, Plant and Equipment – Property, plant and equipment is carried at cost. Additions and improvements that extend the lives of the assets are capitalized, while expenditures for repairs and maintenance are expensed as incurred. We generally depreciate buildings and improvements by the straight-line method over a life of 30 years. Other property, plant and equipment are generally depreciated using the straight-line method based on lives of 3 years to 15 years. Leases – We assess whether an arrangement is a lease at inception. Operating leases with an initial term of 12 months or less are expensed as incurred as short-term lease cost. We have elected the practical expedient to not separate lease and non-lease components for all asset classes. Operating lease assets and operating lease liabilities are calculated based on the present value of the future lease payments over the lease term at the lease commencement date. When future lease payments are based on an index or rate, operating lease assets and operating lease liabilities are calculated using the prevailing index or rate at the lease commencement date. As the implicit rate is not readily determinable, we use our incremental borrowing rate based on the information available at the lease start date in determining the present value of future payments. Information used in determining the incremental borrowing rates for the Company's leases includes: (1) the market yield on the Company's traded bond, adjusted for the presence of collateral and the difference in terms of the bond and the leases, (2) consideration of the currency in which each lease was denominated, and (3) the lease term. The operating lease asset is increased by any lease payments made at or before the lease start date, increased by initial direct costs incurred, and reduced by lease incentives. The lease term includes options to renew or terminate the lease when it is reasonably certain that we will exercise that option. The exercise of lease renewal options is at our sole discretion. The useful life of lease assets and leasehold improvements are limited by the lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Certain leases also include options to purchase the leased asset. Lease expense for operating leases is recognized on a straight-line basis over the lease term. Certain leases contain variable lease payments for items such as index-based changes in rent, fuel and common area maintenance, which we expense as incurred as variable lease cost. Finance leases are not material to our consolidated financial statements. Goodwill – Goodwill represents the excess of cost over the fair value of net assets of businesses acquired and is allocated to our reporting units at the time of the acquisition. We analyze goodwill on an annual basis as of October 1 and when an event occurs, or circumstances change that may reduce the fair value of one of our reporting units below its carrying amount. We have the option of first analyzing qualitative factors to determine whether it is more likely than not that the fair value of any reporting unit is less than its carrying amount. However, we may elect to perform a quantitative goodwill impairment test even if no indications of a potential impairment exist. For the 2025 annual goodwill impairment test for the North America and Latin America reporting units, we elected to perform a qualitative assessment to determine whether it was more likely than not that the fair value of each reporting unit was less than its carrying amount. In performing this assessment, we considered relevant events and circumstances, including industry, market and macroeconomic conditions, as well as company-specific and reporting unit-specific factors. Based on this evaluation, we concluded that it was not more likely than not that the fair value of either reporting unit was less than its carrying amount. Accordingly, a quantitative goodwill impairment test was not required, and no impairment of goodwill was recognized for these reporting units during 2025. During 2024, a qualitative goodwill assessment was performed for the North America and Latin America reporting units while a quantitative assessment was performed for the EMEA and APAC reporting units. Our assessments indicated that there was no goodwill impairment in any of our reporting units as of our annual assessment date. Intangible Assets – Intangible assets consist of long-lived customer lists, trade names and technology. Generally, intangible assets classified as trade names are amortized on a straight-line basis and intangible assets classified as customer lists or technology are amortized using an accelerated method of amortization. Impairment of Long-Lived Assets and Assets Held for Sale – We periodically review our intangible and long-lived assets for impairment and assess whether events or circumstances indicate that the carrying amount of the assets may not be recoverable. We generally deem an asset group to be impaired if an estimate of undiscounted future operating cash flows are less than its carrying amount. If impaired, an impairment loss is recognized based on the excess of the carrying amount of the individual asset group over its fair value. Assets held for sale are measured at the lower of their carrying value or fair value less costs to sell. Upon retirement or disposition, the asset cost and related accumulated depreciation or amortization are removed from the accounts and a gain or loss is recognized based on the difference between the fair value of proceeds received and carrying value of the assets held for sale. Purchase of Common Stock – We repurchase our common stock under both the 2025 and 2016 repurchase program authorized by our Board of Directors. These programs allow us to repurchase up to an aggregate of 3,000,000 shares of our common stock, and 1,514,063 shares remain authorized under the 2025 program. Upon repurchase, the par value is charged to common stock and the remaining purchase price is charged to additional paid-in capital. If the amount of the remaining purchase price causes the additional paid-in capital account to be in a negative position, this amount is then reclassified to retained earnings. Common stock repurchased is included in shares authorized but is not included in shares outstanding. Warranty – We record a liability for estimated warranty claims at the time of sale. The amount of the liability is based on the trend in the historical ratio of claims to sales, the historical length of time between the sale and resulting warranty claim, new product introductions and other factors. In the event we determine that our current or future product repair and replacement costs exceed our estimates, an adjustment to these reserves would be charged to earnings in the period such determination is made. Warranty terms on machines range from to four years. Warranty costs are recorded as a component of selling and administrative expense in the consolidated statements of income. Pension and Profit Sharing Plans – Substantially all U.S. employees are covered by various retirement benefit plans, including postretirement medical plans and defined contribution savings plans. Retirement benefits for eligible employees in foreign locations are funded principally through defined benefit plans, annuity or government programs. Postretirement Benefits – We accrue and recognize the cost of retiree health benefits over the employees’ period of service based on actuarial estimates. Benefits are only available for U.S. employees hired before January 1, 1999. Derivative Financial Instruments – We use cross-currency swaps, interest rate swaps and foreign exchange forward and option contracts to manage risks generally associated with foreign exchange rate and interest rate volatility. We account for our hedging instruments as either assets or liabilities on the consolidated balance sheets and measure them at fair value. Gains and losses resulting from changes in fair value are accounted for depending on the use of the derivative and whether it is designated and qualifies for hedge accounting. Gains and losses for all instruments that do not qualify for hedge accounting are recorded each period to net foreign currency transaction loss in our consolidated statements of income. Changes in the fair value of designated hedges are reported in accumulated other comprehensive loss on the consolidated balance sheet until a related transaction occurs. If the underlying hedged transaction ceases to exist, all changes in fair value of the related derivatives that have not been settled are recorded in our consolidated statements of income. Revenue Recognition – Revenue is recognized when control transfers under the terms of the contract with our customers. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Sales and other taxes we collect concurrently with revenue-producing activities are excluded from revenue. We do not account for shipping and handling as a distinct performance obligation as we generally perform shipping and handling activities after we transfer control of goods to the customer. We have elected to account for shipping and handling costs associated with outbound freight after control of goods has transferred to a customer as a fulfillment cost. Incidental items that are immaterial in the context of the contract are not recognized as a separate performance obligation. We do not have any significantly extended payment terms as payment is generally received within one year of the point of sale. In general, we transfer control and recognize a sale at the point in time when products are shipped from our manufacturing facilities both direct to consumers and to distributors. Service revenue is recognized in the period the service is performed or ratably over the period of the related service contract. Consideration related to service contracts is deferred if the proceeds are received in advance of the satisfaction of the performance obligations and recognized over the contract period as the performance obligation is met. We use an output method to measure progress toward completion for certain prepaid service contracts, as this method appropriately depicts performance toward satisfaction of the performance obligations. For contracts with multiple performance obligations (i.e., a product and service component), we allocate the transaction price to the performance obligations in proportion to their stand-alone selling prices. We use an observable price to determine the stand-alone selling price for separate performance obligations. When allocating on a relative stand-alone selling price basis, any discounts contained within the contract are allocated proportionately to all of the performance obligations in the contract. We generally expense the incremental costs of obtaining a contract when incurred because the amortization period would be less than one year. These costs relate primarily to sales commissions and are recorded in selling and administrative expense in the consolidated statements of income. We do not disclose the value of unsatisfied performance obligations for contracts with an original expected length of one year or less. In addition, we do not adjust the promised amount of consideration for the effects of a significant financing component if we expect, at contract inception, that the period between when we transfer a promised good or service to a customer and when the customer pays for that good or service will be one year or less. Share-Based Compensation – We account for share-based compensation awards on a fair value basis. The estimated grant date fair value of each option award is recognized in income on a straight-line basis over the requisite service period (generally the vesting period). The estimated fair value of each option award is calculated using the Black-Scholes option-pricing model. From time to time, we have elected to modify the terms of the original grant. These modified grants are accounted for as a new award and measured using the fair value method, resulting in the inclusion of additional compensation expense in our consolidated statements of income. Restricted share awards and units are recorded as compensation cost over the requisite service periods based on the market value on the date of grant. To determine the amount of compensation cost to be recognized in each period for these awards and for option awards, we account for forfeitures as they occur. Performance share awards ("PSUs") are stock awards where the ultimate number of shares issued will be contingent on the Company’s performance against certain performance goals. The Compensation Committee can adjust performance goals or modify the manner of measuring or evaluating a performance goal using its discretion. The fair value of each PSU is based on the market value on the date of grant. We recognize expense related to the estimated vesting of our PSUs granted. The estimated vesting of the PSUs is based on the probability of achieving certain performance metrics over the specified performance period. To determine the amount of compensation cost to be recognized in each period, we estimate forfeitures. Research and Development – Research and development costs are expensed as incurred. Advertising Costs – We advertise products, technologies and solutions to customers and prospective customers through a variety of marketing campaign and promotional efforts. These efforts include tradeshows, online advertising, e-mail marketing, mailings, sponsorships and telemarketing. Advertising costs are expensed as incurred. In 2025, 2024 and 2023, such activities amounted to $6.0 million, $5.7 million and $4.6 million, respectively. Income Taxes – Deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the book and tax bases of existing assets and liabilities. A valuation allowance is provided when, in management’s judgment, it is more likely than not that some portion or all of the deferred tax asset will not be realized. We have established uncertain tax position accruals using management’s best judgment. We adjust these accruals as facts and circumstances change. Interest expense is recognized in the first period the interest would begin accruing. Penalties are recognized in the period we claim or expect to claim the position in our tax return. Interest and penalty expenses are classified as an income tax expense. Earnings Per Share – Basic earnings per share is computed by dividing net earnings attributable to Tennant Company by the weighted average shares outstanding during the period. Diluted earnings per share assumes conversion of potentially dilutive stock options, performance shares, restricted shares and restricted stock units. These are not included in our computation of diluted earnings per share if we have a net loss attributable to the Company in a reporting period or if the instrument's effects are anti-dilutive. Investments, Available-for-Sale – As described in Note 12, debt securities classified as available-for-sale securities are carried at fair market value, with the unrealized gains and losses, net of tax, included in the determination of comprehensive income (loss) and reported in shareholders' equity. These investments are subject to periodic impairment review. Investments, Measurement Alternative – Our investments, as described in Note 12 which are valued under the measurement alternative include equity securities for which the Company does not have significant influence and fair value is not readily determinable. Accounting Standard Update ("ASU") 2016-01 requires equity securities to be recorded at cost and adjusted to fair value at each reporting period. However, the guidance allows for a measurement alternative, which is to record investments at cost, less impairment, if any, and subsequently adjust for observable price changes of identical or similar investments of the same issuer. Due to the lack of readily determinable fair values for such investments, for which the Company does not have significant influence, the Company accounts for these investments under the measurement alternative at cost, less impairment. The Company performs qualitative impairment assessments on its investments recorded under the measurement alternative. Investments, Equity Method – As described in Note 13, the Company uses the equity method of accounting for equity investments if the investment provides the ability to exercise significant influence, but not control, over operating and financial policies of the investee. Judgment regarding the level of influence over each equity method investment includes considering key factors such as the Company’s ownership interest, legal form of the investee (e.g. limited liability partnership), representation on the board of directors, participation in policy-making decisions and material intra-entity transactions. Under the equity method of accounting, investments are stated at initial cost and are adjusted for subsequent additional investments and the proportionate share of earnings or losses and dividends, including consideration of basis differences resulting from the difference between the initial carrying amount of the investment and the underlying equity in net assets, as applicable. The Company evaluates equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amount of the investment might not be recoverable. Factors considered by the Company when reviewing an equity method investment for impairment include the length of time (duration) and the extent (severity) to which the fair value of the equity method investment has been less than cost, the investee’s financial condition and near-term prospects, and the intent and ability to hold the investment for a period of time sufficient to allow for anticipated recovery. An impairment that is other-than-temporary is recognized in the period identified. Newly Adopted Accounting Policies Improvements to Income Tax Disclosures In December 2023, the FASB issued ASU 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to the rate reconciliation and income taxes paid information. The amendments in this ASU are required to be adopted for fiscal years beginning after December 15, 2024. We have adopted the new standard on a prospective basis effective December 31, 2025. While the adoption has no impact on our consolidated financial statements, it has resulted in incremental disclosures within the footnotes of our consolidated financial statements. Refer to Note 18, Income Taxes for the inclusion of the new required disclosures.
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| Revenue | Revenue Revenue is recognized upon the transfer of control of promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products and services. Generally, these criteria are met at the time the product is shipped. We also enter into contracts that can include combinations of products and services, which are generally capable of being distinct and are accounted for as separate performance obligations. Revenue is recognized net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental authorities. Disaggregation of Revenue The following tables illustrate the disaggregation of revenue by geographic area, groups of similar products and services and sales channels for the years ended December 31: Net sales by geographic area
Net sales are attributed to each geographic area based on the end user country and are net of intercompany sales. Net sales by groups of similar products and services
Net sales by sales channel
Contract Liabilities Sales Returns The right of return may exist explicitly or implicitly with our customers. When the right of return exists, we adjust the transaction price for the estimated effect of returns. We estimate the expected returns using the expected value method by assessing historical sales levels and the timing and magnitude of historical sales return levels as a percent of sales and projecting this experience into the future. Sales Incentives Our sales contracts may contain various customer incentives, such as volume-based rebates or other promotions. We reduce the transaction price for certain customer programs and incentive offerings that represent variable consideration. Sales incentives given to our customers are recorded using the most likely amount approach for estimating the amount of consideration to which the Company will be entitled. We forecast the most likely amount of the incentive to be paid at the time of sale, update this forecast quarterly, and adjust the transaction price accordingly to reflect the new amount of incentives expected to be earned by the customer. The majority of our customer incentives are settled within one year. We record our accruals for volume-based rebates and other promotions in other current liabilities on our consolidated balance sheets. The change in our sales incentive accrual balance for the years ended December 31, 2025 and 2024 was as follows:
Deferred Revenue We provide separately priced prepaid contracts to our customers, collecting payment at the start of the agreement. Revenue recognition is deferred until we meet our future performance obligations. Our deferred revenue balance includes autonomous subscription sales and prepaid maintenance contracts on our machines ranging from 12 months to 60 months. In circumstances where prepaid contracts are sold simultaneously with machines, we use an observable price to determine stand-alone selling price for separate performance obligations. The change in the deferred revenue balance for the years ended December 31, 2025 and 2024 was as follows:
As of December 31, 2025, $16.6 million and $15.8 million of deferred revenue was reported in other current liabilities and other liabilities, respectively, on our consolidated balance sheets. Of this, we expect to recognize the following approximate amounts in net sales in the following periods:
As of December 31, 2024, $9.8 million and $10.8 million of deferred revenue was reported in other current liabilities and other liabilities, respectively, on our consolidated balance sheets.
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| Restructuring and Related Activities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Management Actions | Management Actions Restructuring Actions In 2025 and 2024, we incurred restructuring expenses as part of our global reorganization efforts. The following pre-tax restructuring charges were included in the consolidated statements of income:
Our restructuring actions represent the execution of a multi-year enterprise strategy to drive increased productivity throughout our operations. The charges in 2025 and 2024 impacted all operating segments and were related to a global workforce realignment to support our key strategic initiatives. A reconciliation to the ending liability balance of severance and related costs as of December 31, 2025 and 2024 is as follows:
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Acquisitions |
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Dec. 31, 2025 | |
| Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] | |
| Acquisitions | Acquisitions R4Y On September 1, 2025, we acquired 100% of Reinigungstechnik 4 You GmbH ("R4Y"), as we continue to expand our footprint in the EMEA region. The total purchase price was $3.6 million. The financial results for R4Y have been included in our consolidated financial statements since the acquisition date. The acquisition was not material to our consolidated financial statements. TCS On February 29, 2024, we acquired 100% of M&F Management and Financing GmbH ("M&F"), the parent company of TCS EMEA GmbH ("TCS"), as we seek to accelerate growth in the EMEA region. The total purchase price of the acquisition was $34.9 million. Based in Austria, TCS was Tennant Company's largest Central and Eastern Europe distributor. The acquisition gives Tennant a knowledgeable and experienced sales force and an established direct channel into countries including Romania, Hungary, Czech Republic, and Slovakia, along with an expanded network in Austria, Switzerland, Poland, and other nations in the region, as well as the Middle East and Africa. The proforma impact of this acquisition is immaterial to our operations.
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Inventories |
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| Inventory Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Inventories | Inventories Inventories as of December 31 consisted of the following:
(a)Finished goods include machines, parts and consumables and component parts that are used in our products. (b)The difference between replacement cost and the stated LIFO inventory value is not materially different from the reserve for the LIFO valuation method.
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Property, Plant and Equipment |
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| Property, Plant and Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, Plant and Equipment | Property, Plant and Equipment Property, plant and equipment and related accumulated depreciation, including equipment under finance leases, as of December 31, consisted of the following:
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Goodwill and Intangible Assets |
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| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill and Intangible Assets | Goodwill and Intangible Assets For purposes of performing our goodwill impairment analysis, we have identified our reporting units as North America, Latin America, EMEA and APAC. The changes in the carrying amount of goodwill were as follows:
There has been no impairment of goodwill for any of the years presented. The additions recorded to goodwill during 2025 and 2024 were related to the acquisitions of R4Y and TCS, respectively, as described further in Note 5. The balances of acquired intangible assets, excluding goodwill, were as follows:
As part of our acquisition of R4Y in 2025, we acquired customer lists with a fair value of $1.2 million. As part of our acquisition of TCS in 2024, we acquired customer lists and backlog with a combined fair value of $13.8 million. Amortization expense of intangible assets was $13.7 million, $15.0 million and $14.7 million for the years ended December 31, 2025, 2024 and 2023, respectively. Estimated aggregate amortization expense based on the current carrying amount of amortizable intangible assets for each of the five succeeding years is as follows:
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Debt |
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| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt | Debt On August 7, 2024, we and certain of our foreign subsidiaries entered into an Amended and Restated Credit Agreement (the "2024 Credit Agreement") with JPMorgan Chase Bank, N.A. as administrative agent. The 2024 Credit Agreement provides us and certain of our foreign subsidiaries access to a senior secured credit facility until August 7, 2029, consisting of a revolving facility in an amount up to $650.0 million, with an option to expand the revolving facility or obtain incremental term loans by up to $325.0 million, with the consent of the lenders willing to provide additional borrowings in the form of increases to their revolving facility commitment or funding of incremental term loans. Borrowings may be denominated in U.S. dollars or certain other currencies. The fee for undrawn committed funds under the revolving facility of the 2024 Credit Agreement ranges from an annual rate of 0.15% to 0.30%, depending on our leverage ratio. Borrowings denominated in U.S. dollars under the 2024 Credit Agreement bear interest at a rate per annum equal to (a) the greatest of (i) the prime rate, (ii) the NYFRB Rate (as defined in the 2024 Credit Agreement) plus 0.50% and (iii) the Adjusted Term SOFR Rate (as defined in the 2024 Credit Agreement) for a one month period plus 1%; but in any case not less than 1%, plus an additional spread of 0.25% to 1%, depending on our leverage ratio, (b) the Adjusted Term SOFR Rate plus an additional spread of 1.25% to 2%, depending on our leverage ratio, or (c) the Adjusted Daily Simple RFR (as defined in the 2024 Credit Agreement) plus an additional spread of 1.25% to 2%, depending on our leverage ratio. In connection with the 2024 Credit Agreement, we reaffirmed our security interest in favor of the lenders in substantially all our personal property and pledged the stock of certain of our domestic and foreign subsidiaries. The obligations under the 2024 Credit Agreement are also guaranteed by certain of our subsidiaries and those subsidiaries also provided a security interest in their similar personal property. The 2024 Credit Agreement contains customary representations, warranties and covenants, including but not limited to covenants restricting our ability to incur indebtedness and liens and merge or consolidate with another entity. Further, the 2024 Credit Agreement contains the following covenants: •a covenant requiring us to maintain an indebtedness to EBITDA ratio, determined as of the end of each fiscal quarter, of no greater than 3.75 to 1.00, with certain alternative requirements for permitted acquisitions of at least $50.0 million; •a covenant requiring us to maintain an EBITDA to interest expense ratio for a period of four consecutive fiscal quarters as of the end of each quarter of no less than 3.00 to 1; and •a covenant restricting us from paying dividends or repurchasing stock if, after giving effect to such payments and assuming no default exists or would result from such payment, our leverage ratio is greater than 2.50 to 1, in such case limiting such payments to the greater of 10% of consolidated total assets or $100.0 million during any fiscal year. We were in compliance with the financial covenants as of December 31, 2025. Debt outstanding as of December 31 consisted of the following:
As of December 31, 2025, we had outstanding borrowings of $272.5 million under our revolving credit facility. We had letters of credit and bank guarantees outstanding in the amount of $3.2 million, leaving approximately $374.3 million of unused borrowing capacity on our revolving facility. Commitment fees on unused lines of credit for the year ended December 31, 2025 were $0.6 million. The overall weighted average cost of debt is approximately 5.8% and net of a related cross-currency swap and interest rate swap instruments is approximately 4.4%. Further details regarding the cross-currency swap instrument are discussed in Note 11. The aggregate maturities of our outstanding debt, excluding unamortized debt issuance costs, as of December 31, 2025, are as follows:
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Other Current Liabilities |
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| Payables and Accruals [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Current Liabilities | Other Current Liabilities Other current liabilities as of December 31 consisted of the following:
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Derivatives |
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivatives | Derivatives Hedge Accounting and Hedging Programs We recognize all derivative instruments as either assets or liabilities in our consolidated balance sheets and measure them at fair value. Gains and losses resulting from changes in fair value are accounted for depending on the use of the derivative and whether it is designated and qualifies for hedge accounting. To receive hedge accounting treatment, all hedging relationships are formally documented at the inception of the hedge. We evaluate hedge effectiveness on our hedges that are designated and qualify for hedge accounting at the inception of the hedge prospectively, as well as retrospectively, and record any ineffective portion of the hedging instruments in net foreign currency transaction loss on our consolidated statements of income. The time value of purchased contracts is recorded in net foreign currency transaction loss in our consolidated statements of income. If we do not elect hedge accounting, or the contract does not qualify for hedge accounting treatment, the changes in fair value from period to period are recorded in net foreign currency transaction losses in our consolidated statements of income. Our hedging policy establishes maximum limits for each counterparty to mitigate any concentration of risk. Balance Sheet Hedges We hedge our net recognized foreign currency denominated assets and liabilities with foreign exchange forward contracts to reduce the risk that the value of these assets and liabilities will be adversely affected by changes in exchange rates. These contracts hedge assets and liabilities that are denominated in foreign currencies and are carried at fair value as either assets or liabilities on the consolidated balance sheets with changes in the fair value recorded to net foreign currency transaction gain in our consolidated statements of income. These contracts do not subject us to material balance sheet risk due to exchange rate movements because gains and losses on these derivatives are intended to offset gains and losses on the assets and liabilities being hedged. At December 31, 2025 and December 31, 2024, the notional amounts of foreign currency forward exchange contracts outstanding not designated as hedging instruments were $92.9 million and $70.2 million, respectively. Cash Flow Hedges The Company manages its floating rate debt exposure using interest rate swaps. Fixed rate swaps are used to reduce the Company's risk of the possibility of increased interest costs. The Company entered into an aggregate $120.0 million notional amount of interest rate swaps effective December 1, 2022, that exchange a variable rate of interest for a fixed rate of interest of 4.076%. These interest rate swaps are designated as cash flow hedges. These swaps were scheduled to mature on December 1, 2026 (the "December 2022 Swaps"). On October 14, 2025, we amended and restructured our interest rate swap contracts using a strategy referred to as a "blend and extend." In a blend and extend arrangement, the liability or asset position of the existing interest rate swap arrangement is blended into the amended or new interest rate swap arrangement and the term to maturity of the hedged position is extended. The amendment modified (i) the fixed rate payable by the counterparty from 4.076% to a new fixed rate of 3.443% and (ii) extended the termination date through October 1, 2029 (the "October 2025 Swaps"). The amendment did not change the aggregate notional amount of $120.0 million. As a result of this transaction, the December 2022 Swaps were de-designated and the unrealized loss of $0.9 million was recorded within accumulated other comprehensive loss and will be amortized as a reduction of interest expense, net, over the original term of the of the amended swaps (until December 2026), as the hedged transactions affect earnings. Additionally, the October 2025 Swaps had a fair value of $0.9 million at inception, and will be ratably recorded to accumulated other comprehensive loss and reclassified to interest expense, net, over the term of the October 2025 Swaps (until October 2029), as the hedged transactions affect earnings. At inception of the October 2025 Swaps, the Company determined that the swaps qualified for cash flow hedge accounting under ASC 815. Therefore, changes in the fair value of the swap, net of taxes, will be recognized in other comprehensive loss each period, then reclassified into the consolidated statements of income as a component of interest expense, net in the period in which the hedged transaction affects earnings. Fair Value Hedges On April 5, 2022, we entered into Euro to U.S. dollar foreign exchange cross-currency swaps associated with an intercompany loan from a wholly owned European subsidiary. We enter into these foreign exchange cross-currency swaps to hedge the foreign currency risk associated with this intercompany loan, and accordingly, they are not speculative in nature. These cross-currency swaps are designated as fair value hedges. As of December 31, 2025, these cross-currency swaps included €75.0 million of total notional value. As of December 31, 2025, the aggregated scheduled interest payments over the course of the loan and related swaps amounted to €3.0 million. These swaps are scheduled to mature in April 2027. Net Investment Hedges On April 5, 2022, we entered into Euro to U.S. dollar foreign exchange cross-currency swaps to hedge our exposure to adverse foreign currency exchange rate movements between Tennant Company and its Euro denominated subsidiaries. We enter into these fixed-to-fixed cross-currency swap agreements to protect a designated monetary amount of the Company’s net investment in its Euro functional currency subsidiaries against the risk of changes in the Euro to U.S. dollar foreign exchange rate. These cross-currency swaps are designated as net investment hedges. As of December 31, 2025, the cross-currency swaps included €75.0 million of total notional values. These swaps are scheduled to mature in April 2027. The fair value of derivative instruments on our consolidated balance sheets as of December 31 consisted of the following:
(a)Contracts that mature within the next 12 months are included in other current assets and other current liabilities for asset derivatives and liabilities derivatives, respectively, on our consolidated balance sheets. Contracts with maturities greater than 12 months are included in other assets and other liabilities for asset derivatives and liability derivatives, respectively, in our consolidated balance sheets. Amounts included in our consolidated balance sheets are recorded net where a right of offset exists with the same derivative counterparty. As of December 31, 2025, we anticipate reclassifying approximately $0.6 million of gains from accumulated other comprehensive loss to net income during the next 12 months. The following tables include the amounts in the consolidated statements of income in which the effects of derivative instruments are recorded and the effects of derivative instruments activity on these line items for the years ended December 31, 2025 and December 31, 2024:
The effect of derivative instruments designated as hedges and derivative instruments not designated as hedges in our consolidated statements of income for the three years ended December 31 were as follows:
(a)Net change in the fair value of the effective portion classified in other comprehensive income (loss). (b)Classified in net foreign currency transaction (loss) gain.
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Fair Value Measurements |
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements | Fair Value Measurements Financial Instruments The carrying amounts reported in the consolidated balance sheets for cash and cash equivalents, restricted cash, accounts receivable, other current assets, accounts payable and other current liabilities approximate fair value due to their short-term nature. On February 21, 2024, the Company acquired certain investment securities in Brain Corp, a privately held autonomous technology company headquartered in San Diego, California. The investment consists of $12.1 million of redeemable convertible preferred stock, $12.2 million of non-redeemable convertible preferred stock, and $7.8 million of warrants. The redeemable convertible preferred stock is accounted for as an available-for-sale debt security. The non-redeemable convertible preferred stock and warrants are accounted for as equity securities. All securities were recorded at their allocated fair value at the acquisition date. In December 2025, the Company obtained the ability to exercise significant influence over Brain Corp and, as a result, adopted the equity method of accounting for its equity securities investment. As of December 31, 2025, the investment is accounted for under the equity method (see Note 13 – Equity Method Investments). The available-for-sale debt security is carried at fair value with changes in fair value recognized in accumulated other comprehensive income (loss). The Company estimates fair value using Level 3 inputs. As of December 31, 2025, and December 31, 2024, a comparison of cost and market values of our debt and equity securities was as follows:
The aggregate unrealized gains and losses on available-for-sale debt securities, net of tax effects, are classified in accumulated other comprehensive loss within shareholders' equity. Scheduled maturities of our debt securities were as follows:
Fair Value Measurements and Financial Statement Presentation Estimates of fair value for financial assets and financial liabilities are based on the framework established in the accounting guidance for fair value measurements. The framework defines fair value, provides guidance for measuring fair value and requires certain disclosures. The framework discusses valuation techniques, such as the market approach (comparable market prices), the income approach (present value of future income or cash flow) and the cost approach (cost to replace the service capacity of an asset or replacement cost). The framework utilizes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels: •Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities. •Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. •Level 3: Unobservable inputs that reflect the reporting entity’s own assumptions. Our population of assets and liabilities subject to fair value measurements as of December 31, 2025 were as follows:
Our population of assets and liabilities subject to fair value measurements as of December 31, 2024 were as follows:
Our foreign currency forward exchange contracts, cross-currency swaps and interest rate swaps are valued using observable Level 2 market expectations at the measurement date and standard valuation techniques to convert future amounts to a single present value amount. Further details regarding our foreign currency forward exchange and option contracts are discussed in Note 11. There were no transfers into or out of Level 3 investments in 2025 or 2024. The fair value and carrying value of total debt, including current portion, was $281.4 million and $273.6 million, respectively, as of December 31, 2025. The fair value was estimated using Level 3 inputs based on the borrowing rates currently available to us for bank loans with similar terms and remaining maturities.
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Retirement Benefit Plans |
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| Retirement Benefits [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retirement Benefit Plans | Retirement Benefit Plans Substantially all U.S. employees are covered by various retirement benefit plans, including defined contribution savings plans and postretirement medical plans. Retirement benefits for eligible employees in foreign locations are funded principally through defined benefit plans, annuity or government programs. Defined Benefit Pension Plans We have a U.S. nonqualified supplemental benefit plan (the “U.S. Nonqualified Plan”) to provide additional retirement benefits for certain employees whose benefits under our 401(k) plan or U.S. Pension Plan are limited by either the Employee Retirement Income Security Act or the Internal Revenue Code. We also have defined benefit pension plans in the United Kingdom, Germany, France and Italy (the “U.K. Pension Plan”, the “German Pension Plan,” "French Pension Plan" and the "Italian Pension Plan"). The U.K. Pension Plan, French Pension Plan, German Pension Plan and Italian Pension Plan cover certain current and retired employees and all plans are closed to new participants. In December 2018, the U.K. Pension Plan was amended to close all future accrual of benefits to existing active members. In December 2024, the Trustees of the U.K. Pension Plan entered into an agreement with an insurer to acquire an insurance policy that operates as an investment asset, with the intent of matching part of the U.K. Pension Plan’s future cash outflow arising from the accrued pension liabilities of 26 non-insured pensioner members. Such an arrangement is commonly termed as a “partial buy-in.” The benefit obligation was not transferred to the insurer and remains with the Company. The partial buy-in insurance contract is classified as a Level 3 investment. The value of the insurance contract is based on significant unobservable inputs including plan participant demographics, in addition to observable inputs which include expected return on assets and estimated value premium. The partial buy-in arrangement also allows for the possible future conversion into a buy-out arrangement where the insurance company would assume responsibility for paying the insured benefits directly to the members of the U.K. Pension Plan, at which time the Company would derecognize the assets and liabilities of the pension plan but would, however, remain responsible for any residual risks once the U.K. Pension Plan is wound-up. The Italian Plan is an employee termination indemnity mandated by Italian law to all employees employed prior to 2008. Benefits are paid out when employees covered under the plan are terminated for any reason. Due to changes in Italian law, such termination indemnities are no longer available to new participants. Retiree Health Care Plan We have a U.S. postretirement medical benefit plan (the “U.S. Retiree Plan”) to provide certain healthcare benefits for U.S. employees hired before January 1, 1999. Eligibility for those benefits is based upon a combination of years of service with us and age upon retirement Summarized financial information about our defined benefit pension plans and retiree health care plan is presented below:
The accumulated benefit obligation ("ABO") for all defined benefit pension plans was $11.9 million and $10.9 million as of December 31, 2025 and 2024, respectively. The ABO for plans that have plan assets was $7.2 million and $6.3 million as of December 31, 2025 and 2024, respectively. The projected benefit obligation ("PBO") for all defined benefit pension plans was $4.8 million and $4.9 million as of December 31, 2025 and 2024, respectively. By their nature, certain of our plans do not have plan assets. The accumulated benefit obligation for these plans was $4.6 million and $4.6 million as of December 31, 2025 and 2024, respectively. Amounts recognized in other comprehensive income in 2025 and 2024 were as follows:
The components of the net periodic benefit expense (income) for the three years ended December 31 were as follows:
Health Care Cost Trend Rates Assumed health care cost trend rates as of December 31 were as follows:
We review our health care cost trend rates annually. Our review is based on data we collect about our health care claims experience and information provided by our actuaries. Assumptions Weighted-average assumptions used to determine benefit obligations as of December 31 were as follows:
Weighted-average assumptions used to determine net periodic benefit costs as of December 31 were as follows:
The discount rate reflects the rate at which the benefit obligations could be effectively settled at the measurement date and is based on yields of high-quality corporate bonds with durations consistent with the plan liabilities. The Company works with its outside actuaries to estimate the timing and amount of expected future benefit payments and applies a yield curve derived from high-quality corporate bond yields to those expected cash flows to determine the discount rate. For 2025, the Company used the Mercer Above Mean Yield Curve for the U.S. plans and the Mercer Yield Curve for the Non-U.S. plans. The expected long-term rate of return on plan assets reflects the target investment allocation and expected long-term portfolio returns for each Non-U.S. pension plan. Fair Value of Plan Assets The fair value of our U.K. Pension Plan and the respective level in the fair value hierarchy as of December 31, 2025 were as follows:
(a)This category is comprised of investments in fixed income securities. (b)This represents the U.K. Pension Plan partial buy-in assets comprised of investments in insurance contracts. The fair value of our U.K. Pension Plan and the respective level in the fair value hierarchy as of December 31, 2024 were as follows:
(a)This category is comprised of investments in insurance contracts. (b)This represents the U.K. Pension Plan partial buy-in assets comprised of investments in insurance contracts. Estimates of the fair value of the U.K. Pension Plan are prepared in accordance with the framework established under the accounting guidance for fair value measurements. A summary of the three fair value hierarchy levels is provided in Note 12. The Investment Account held by the U.K. Pension Plan primarily invests in insurance contracts to fund the plan and continues to be classified as Level 3. The fair value of these contracts is based on the cash surrender values determined by the provider, representing the amounts the plan would receive if the contracts were cashed out at year-end. The underlying assets of these contracts are primarily invested in instruments traded in active markets. In 2025, $7.2 million was reallocated from the insurance contracts to a bond fund. This portion of the Investment Account is now classified as Level 1 reflecting its valuation based on observable market prices. A reconciliation of the beginning and ending balances of the Level 3 investments of our U.K. Pension Plan during the years ended December 31 was as follows:
The primary objective of our U.K. Pension Plan is to meet retirement income commitments to plan participants at a reasonable cost to us and to maintain a sound actuarial funded status. This objective is accomplished through growth of capital and safety of funds invested. Assets are invested in securities to achieve growth of capital over inflation through appreciation and accumulation and reinvestment of dividend and interest income. Investments are diversified to control risk. The U.K. Pension Plan is invested in insurance contracts with underlying investments primarily in equity and fixed income securities. All other Pension Plans are unfunded, which is customary. Future Contributions and Benefit Payments We do not expect to be required to make contributions to our U.S. Nonqualified Plan in 2026. We expect to contribute $0.6 million to our U.S. Retiree Plan in 2026. We expect contributions to our U.K. Pension Plan, German Pension Plan, French Pension Plan and Italian Pension Plans to be $0.3 million in 2026. Estimated benefit payments, which reflect expected future service, as appropriate, are expected to be paid from 2026 to 2035 as follows:
Defined Contribution Plans Our defined contribution savings plan (“401(k) plan”) covers substantially all U.S. employees. Under this plan, we match up to 3% of the employee’s annual compensation in cash to be invested per their election. We also make a discretionary profit sharing contribution to the 401(k) plan for employees with more than one year of service in accordance with our Profit Sharing Plan. This contribution is based upon our financial performance and can be funded in the form of a direct deposit into the employees 401(k) account, cash, or a combination of both. Expenses for the 401(k) plan, including profit sharing contributions, were $5.6 million, $10.0 million and $10.5 million during 2025, 2024 and 2023, respectively.
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| Shareholders' Equity | Shareholders' Equity Authorized Shares We are authorized to issue an aggregate of 60,000,000 shares, all of which are designated as Common Stock having a par value of $0.375 per share. The Board of Directors is authorized to establish one or more series of preferred stock, setting forth the designation of each such series, and fixing the relative rights and preferences of each such series. Accumulated Other Comprehensive Loss The changes in components of accumulated other comprehensive loss, net of tax, were as follows:
Accumulated other comprehensive loss associated with pension and postretirement benefits, derivative financial instruments, and unrealized gain on debt securities is included in Notes 14, 11 and 9, respectively. Repurchase of Common Stock On February 11, 2025, the Board of Directors authorized the repurchase of up to 2,000,000 shares. Our stock repurchase program is not subject to an expiration date. During the year ended December 31, 2025, the Company paid $87.7 million to repurchase 1,108,998 shares of its common stock at an average price of $79.03 per share. As of December 31, 2025, 1,514,063 shares were available to be repurchased. The aggregate cost and average price per share does not include the effect of the 1% excise tax on certain share repurchases enacted under the Inflation Reduction Act of 2022. The Company incurred $0.8 million of excise taxes during 2025. The Company paid $19.6 million to repurchase 198,352 shares during the year ended December 31, 2024.
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| Leases [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leases | Leases We lease facilities, vehicles and equipment under the operating lease agreements, which include both monthly and longer-term arrangements. Certain operating leases for vehicles contain residual value guarantee provisions, which would generally become due at the expiration of the operating lease agreement if the fair value of the leased vehicles is less than the guaranteed residual value. As of December 31, 2025, the aggregate residual value guarantee related to these leases was approximately $25.5 million. We believe the likelihood of funding the guarantee obligation under any provision of the operating lease agreement is remote. The lease assets and liabilities as of December 31 were as follows:
The lease cost for the three years ended December 31 was as follows:
The maturity of lease liabilities as of December 31, 2025 was as follows:
The lease term and discount rate as of December 31 were as follows:
Other information related to cash paid related to lease liabilities and lease assets obtained for the years ended December 31 was as follows:
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| Leases | Leases We lease facilities, vehicles and equipment under the operating lease agreements, which include both monthly and longer-term arrangements. Certain operating leases for vehicles contain residual value guarantee provisions, which would generally become due at the expiration of the operating lease agreement if the fair value of the leased vehicles is less than the guaranteed residual value. As of December 31, 2025, the aggregate residual value guarantee related to these leases was approximately $25.5 million. We believe the likelihood of funding the guarantee obligation under any provision of the operating lease agreement is remote. The lease assets and liabilities as of December 31 were as follows:
The lease cost for the three years ended December 31 was as follows:
The maturity of lease liabilities as of December 31, 2025 was as follows:
The lease term and discount rate as of December 31 were as follows:
Other information related to cash paid related to lease liabilities and lease assets obtained for the years ended December 31 was as follows:
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Commitments and Contingencies |
12 Months Ended |
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Dec. 31, 2025 | |
| Commitments and Contingencies Disclosure [Abstract] | |
| Commitments and Contingencies | Commitments and Contingencies In the ordinary course of business, we may become liable with respect to pending and threatened litigation, tax, environmental and other matters. Legal costs associated with such matters are expensed as incurred. Oxygenator Water Techs vs. Tennant Company On November 25, 2024, the Company received an adverse jury verdict in an intellectual property damages dispute in the United States District Court for the District of Minnesota (the "Court"). Oxygenator Water Technologies, Inc. ("OWT") alleged that between 2015 and 2023, the Company infringed certain of OWT’s patents through the manufacture and sale of certain component parts in ecH2O and nanoclean system options included on commercial floor scrubbers. The jury ruled against the Company and awarded compensatory damages of $9.8 million, plus prejudgment interest of $4.7 million, in favor of OWT. Accordingly, in the fourth quarter of 2024, the Company recorded an accrued expense and a corresponding liability of $14.5 million. Subsequently, on September 17, 2025, the Court issued a post-trial ruling enhancing damages by 30%, resulting in total damages and interest of approximately $20.2 million, including $9.8 million in compensatory damages, $2.9 million in enhanced damages, and $7.4 million in prejudgment interest. As a result, the Company recorded an incremental accrued expense and corresponding liability of $6.0 million for the year ended December 31, 2025. The Company and OWT have appealed certain of the Court's decisions. In connection with the Company's appeal and in order to stay execution of the judgment pending resolution of the appeal, the Company obtained a supersedeas bond in the amount of $20.3 million, as required by the Court. The bond was issued by a third-party surety, and the Company pays an annual premium related to the bond. The bond secures payment of the judgment, including applicable post-judgment interest and costs, if the judgment is affirmed or otherwise becomes payable following the appeal. The Company has not posted cash collateral in connection with the bond. As litigation outcomes are inherently uncertain and can result in unanticipated developments, it is possible that the Company’s exposure to loss could change following the issuance of these financial statements. The Company intends to vigorously defend its position through its appeal and assessment of next steps in the proceedings. The ruling does not impact the Company’s ability to sell its products and is not expected to affect its long-term business objectives. Other Matters In addition to the above matter, the Company is involved in various other claims and litigation incidental to its business. Although the outcome of these matters cannot be determined with certainty, we do not expect that the final outcome will have a material effect on the Company's consolidated results of operations or financial position.
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Income Taxes |
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| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes | Income Taxes Income before income taxes for the three years ended December 31 was as follows:
Income tax expense for the three years ended December 31 was as follows:
In general, it is our practice and intention to permanently reinvest the earnings of our foreign subsidiaries and repatriate earnings only when the tax impact is zero or immaterial. Accordingly, no deferred taxes have been provided for withholding taxes or other taxes that would result upon repatriation of our approximately $107.6 million of undistributed earnings from foreign subsidiaries to the United States as those earnings continue to be permanently reinvested or the earnings will be remitted in a tax-neutral transaction. The following table presents the reconciliation between our statutory income tax and effective income tax for the year ended December 31, 2025 in accordance with ASU 2023-09, which was adopted prospectively in 2025:
The following table presents the reconciliation between our statutory income taxes and effective income taxes for the two years ended December 31 prior to the adoption of ASU 2023-09:
The effect of foreign operations line item includes (3.7%) and (12.0%) benefits for 2024 and 2023, respectively, associated with reductions to deferred tax liabilities on undistributed foreign earnings as those cumulative earnings were reduced by current year statutory book losses. Deferred tax assets and liabilities were comprised of the following as of December 31:
Tax credit carryforwards consist of $5.8 million of U.S. federal and state tax credits and $1.4 million of Netherlands tax credits. We have cumulative tax losses and other tax attributes of $63.0 million in various countries ($14.4 million tax effected). Cumulative losses can be used to offset the income tax liabilities on future income in these countries. Of these losses and other tax attributes, $62.0 million have unlimited carryforward periods and $1.0 million have a limited carryforward period. The valuation allowance as of December 31, 2025 principally applies to foreign net operating losses as well as foreign and domestic tax credit carryforwards which, in the opinion of management, are more likely than not to expire unutilized. However, to the extent that tax benefits related to these carryforwards are realized in the future, the reduction in the valuation allowance will reduce income tax expense. The amount of cash income taxes paid for the year ended December 31, 2025, disaggregated in accordance with ASU 2023-09, is as follows:
The amount of cash income taxes paid during the years ended December 31, 2024 and 2023 were $30.2 million and $39.5 million, respectively. A reconciliation of the beginning and ending amount of unrecognized tax benefits was as follows:
Included in the balance of unrecognized tax benefits as of December 31, 2025 and 2024 are potential benefits of $5.5 million and $5.5 million, respectively, that if recognized, would affect the effective tax rate. We recognize potential accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense. In addition to the liability of $5.9 million and $5.9 million for unrecognized tax benefits as of December 31, 2025 and 2024, there was approximately $0.8 million and $0.6 million, respectively, for accrued interest and penalties. To the extent interest and penalties are not assessed with respect to uncertain tax positions, the amounts accrued will be revised and reflected as an adjustment to income tax expense. We and our subsidiaries are subject to U.S. federal income tax as well as income tax of numerous state and foreign jurisdictions. We are generally no longer subject to U.S. federal tax examinations for taxable years before 2019. The number of years which remain open for audit for U.S. state or foreign tax purposes varies by jurisdiction but generally ranges from 3-5 years. We are currently undergoing income tax examinations in various foreign jurisdictions. Although the final outcome of these examinations cannot be currently determined, we believe that we have adequate reserves with respect to these examinations. On July 4, 2025, the U.S. enacted H.R. 1 "A bill to provide for reconciliation pursuant to Title II of H. Con. Res. 14," commonly referred to as the One Big Beautiful Bill Act (the “Act”). The Act includes significant corporate tax provisions such as accelerated depreciation deductions, immediate expensing of domestic research costs, and modifications to the international tax framework. The legislation has multiple effective dates, with certain provisions effective starting January 1, 2025. We currently expect a cash tax benefit in 2025 from the enhanced expensing provisions. The Act does not materially impact our effective tax rate.
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Share-Based Compensation |
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| Share-Based Payment Arrangement [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-Based Compensation | Share-Based Compensation In May 2024, our shareholders approved the Amended and Restated 2020 Stock Incentive Plan (“2020 Plan”) at the Annual Meeting held on May 1, 2024. Upon approval of the 2020 Plan, the Company’s prior equity compensation plans, including the former Non‑Employee Director Stock Option Plan, the 2007 Plan, the 2010 Plan, and the 2017 Plan, were terminated, although all outstanding awards under those plans remain in effect until exercised, forfeited, or expired in accordance with their terms. Beginning May 1, 2024, all new share‑based compensation awards have been granted under the 2020 Plan. When originally approved, the 2020 Plan authorized 1,750,000 shares of common stock for issuance. The May 2024 shareholder approval of the Amended and Restated 2020 Plan increased the share reserve by an additional 1,100,000 shares, resulting in a total of 2,850,000 shares authorized for issuance under the 2020 Plan. As of December 31, 2025, there were 1,563,640 shares available for issuance under the 2020 Plan. Total compensation expense related to all share-based compensation plans was $10.4 million ($0.2 million net of tax benefit), $11.9 million ($3.1 million net of tax benefit) and $11.6 million ($0.1 million net of tax benefit), respectively, during the years ended 2025, 2024 and 2023. Stock Option Awards We determined the fair value of our stock option awards using the Black-Scholes valuation model that uses the assumptions noted in the table below. The expected term selected for stock options granted during the year represents the period of time that the stock options are expected to be outstanding based on historical data of stock option holder exercise and termination behavior of similar grants. The risk-free interest rate for periods within the contractual life of the stock option is based on the U.S. Treasury rate over the expected life at the time of grant. Expected volatility is based upon historical volatility of our stock over a period equal to the expected life of each stock option grant. Dividend yield is estimated over the expected life based on our dividend policy and historical dividends paid. To determine the amount of compensation cost to be recognized in each period, we account for forfeitures as they occur. We did not grant any stock options during 2025 or 2024. The following table illustrates the valuation assumptions used for the 2023 stock option grants:
New stock option awards granted vest one-third each year over a three-year period and have a ten-year contractual term. Compensation expense equal to the grant date fair value is recognized for these awards on a straight-line basis over the awards' vesting period. Stock options granted to employees are subject to accelerated expensing if the option holder meets the retirement definition set forth in the applicable equity and inventive plan. The following table summarizes stock option activity during the year ended December 31, 2025:
There were no options granted during the year ended December 31, 2025 or 2024. The weighted-average grant date fair value of stock options granted during the year ended 2023 was $24.21. The total intrinsic value of stock options that were exercised during the years ended December 31, 2025, 2024 and 2023 was $0.3 million, $14.5 million and $5.9 million, respectively. As of December 31, 2025, there was unrecognized compensation cost related to nonvested stock options of $0.1 million, which is expected to be recognized over a weighted-average period of 0.2 years. Restricted Share Awards Restricted share awards for employees generally have a three-year vesting period from the effective date of the grant. Restricted share awards to non-employee directors vest upon a change of control or upon termination of service as a director occurring at least six months after grant date of the award so long as termination is for one of the following reasons: death; disability; retirement in accordance with Tennant policy (e.g., age, term limits, etc.); resignation at request of Board (other than for gross misconduct); resignation following at least six months’ advance notice; failure to be renominated (unless due to unwillingness to serve) or reelected by shareholders; or removal by shareholders. We use the closing share price the day before the grant date to determine the fair value of our restricted share awards. Expenses for these awards are recognized over the vesting period. The following table summarizes restricted share award activity during the year ended December 31, 2025:
The weighted-average grant date fair value of restricted share awards granted during the years ended December 31, 2025, 2024 and 2023 was $89.16, $110.16 and $72.88, respectively. The total fair value of restricted shares vested during the years ended December 31, 2025, 2024 and 2023 was $1.3 million, $1.6 million and $0.4 million, respectively. As of December 31, 2025, there was $3.7 million of total unrecognized compensation cost related to restricted share awards, which is expected to be recognized over a weighted-average period of 1.8 years. Performance Share Awards We grant performance share awards to key employees as a part of our long-term management compensation program. These awards are earned based upon achievement of certain financial performance targets over a three year period. The number of shares of common stock a participant receives will be increased (up to 200 percent of target levels) or reduced (down to zero) based on the level of achievement of the financial performance targets. We use the closing share price the day before the grant date to determine the fair value of our performance share awards. Expenses on these awards are recognized over a three-year performance period. Performance shares are granted in restricted stock units. They are payable in stock and vest solely upon achievement of certain financial performance targets during this three-year period. The following table summarizes performance share awards activity during the year ended December 31, 2025:
The weighted-average grant date fair value of performance share awards granted during the years ended December 31, 2025, 2024 and 2023 was $87.11, $108.97 and $73.12, respectively. As of December 31, 2025, there was $4.0 million of total unrecognized compensation costs related to performance share awards, which is expected to be recognized over a weighted-average period of 1.7 years. Restricted Stock Units We grant restricted stock units to employees and non-employee directors, which generally vest within three years from the date of the grant. Vested restricted stock units are paid out in stock. We use the closing share price the day before the grant date to determine the fair value of our restricted stock units. Expenses on these awards are recognized on a straight-line basis over the vesting period of the award. The following table summarizes restricted stock units activity during the year ended December 31, 2025:
The weighted-average grant date fair value of restricted stock units granted during the years ended December 31, 2025, 2024 and 2023 was $80.81, $106.54 and $77.59, respectively. The total fair value of shares vested during the years ended December 31, 2025, 2024 and 2023 was $3.1 million, $2.2 million and $3.0 million, respectively. As of December 31, 2025, there was $3.1 million of total unrecognized compensation cost related to restricted stock units, which is expected to be recognized over a weighted-average period of 1.5 years. Share-Based Liabilities As of December 31, 2025 and 2024, we had $0.6 million and $0.4 million in total share-based liabilities recorded on our consolidated balance sheets, respectively.
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Income Attributable to Tennant Company Per Share |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Attributable to Tennant Company Per Share | Income Attributable to Tennant Company Per Share The computations of basic and diluted earnings attributable to Tennant Company per share for the years ended December 31 were as follows:
Excluded from the dilutive securities shown above were options to purchase and shares to be paid out under share-based compensation plans of 150,421, 97,463 and 249,690 shares of common stock during 2025, 2024 and 2023, respectively. These exclusions were made if the exercise prices of these options are greater than the average market price of our common stock for the period, if the number of shares we can repurchase under the treasury stock method exceeds the weighted shares outstanding in the options, or if we have a net loss, as these effects are anti-dilutive.
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Segment Reporting |
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| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Reporting | Segment Reporting We are organized into four operating segments: North America; Latin America; Europe, Middle East, Africa; and Asia Pacific. We combine our North America and Latin America operating segments into the "Americas" for reporting net sales by geographic area. In accordance with the objective and basic principles of the applicable accounting guidance, we aggregate our operating segments into one reportable segment that consists of the design, manufacture and sale of products used primarily in the maintenance of nonresidential surfaces. The Company's chief operating decision maker ("CODM") is our chief executive officer. The CODM uses net income, that is also reported on the income statement as consolidated net income, to evaluate return on assets and decide whether to reinvest profits into segments or other areas, such as acquisitions or dividends. It is also used to monitor budget versus actual results, conduct competitive analysis by benchmarking against the Company's competitors, and assess segment performance. Additionally, the CODM uses net income to allocate resources, evaluate performance, and make key operating decisions, considering budget-to-actual variances on a quarterly basis. The CODM also uses gross profit to evaluate pricing, allocate resources, and assess segment performance by comparing actual results to historical and forecasted data. Significant expenses within net income include cost of sales, research and development, and selling and administrative expenses, which are each separately presented on the Company’s Consolidated Statements of Income. Other segment items within net income include net foreign currency transaction gain (loss), interest expense, net, other (expense) income, net, and income tax expense. The measure of segment assets is reported on the balance sheet as total consolidated assets. The following table presents net sales by geographic area for the three years ended December 31:
Accounting policies of the operations in various operating segments are the same as those described in Note 2. Net sales are attributed to each operating segment based on the end user country and are net of intercompany sales. Apart from the United States shown in the table above, there were no individual foreign locations which had net sales which represented more than 10% of our consolidated net sales. No single customer represents more than 10% of our consolidated net sales. The following table presents long-lived assets by geographic area as of December 31:
Long-lived assets consist of property, plant and equipment, goodwill, intangible assets and certain other assets. Apart from the United States and Italy shown in the table above, there are no other individual foreign locations which have long-lived assets which represent more than 10% of our consolidated long-lived assets.
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Schedule II - Valuation and Qualifying Accounts |
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| SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule II - Valuation and Qualifying Accounts | Schedule II - Valuation and Qualifying Accounts
(a)Primarily includes impact from foreign currency fluctuations. (b)Includes accounts determined to be uncollectible and charged against reserves, net of collections on accounts previously charged against reserves. (c)Includes inventory identified as excess, slow moving or obsolete and charged against reserves. (d)Includes warranty claims charged against reserves.
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Insider Trading Arrangements |
3 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Trading Arrangements, by Individual | |
| Rule 10b5-1 Arrangement Adopted | false |
| Non-Rule 10b5-1 Arrangement Adopted | false |
| Rule 10b5-1 Arrangement Terminated | false |
| Non-Rule 10b5-1 Arrangement Terminated | false |
Insider Trading Policies and Procedures |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Insider Trading Policies and Procedures [Line Items] | |
| Insider Trading Policies and Procedures Adopted | true |
Cybersecurity Risk Management and Strategy Disclosure |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Cybersecurity Risk Management, Strategy, and Governance [Line Items] | |
| Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] | Risk Management and Strategy We recognize the critical importance of developing, implementing, and maintaining robust cybersecurity processes to safeguard our information systems and protect the confidentiality, integrity, and availability of our data. Our approach to assessing, prioritizing, and effecting cybersecurity processes and projects is based on standards from the National Institute of Standards and Technology ("NIST"). We have established an enterprise risk management ("ERM") program that considers our enterprise strategy, information from internal stakeholders, and information from external sources (e.g., emerging risks and trends, evaluations by third parties, and best practices) to identify, assess, categorize, and monitor risks including cybersecurity risks. The ERM program develops enterprise risk profiles to address individual risk drivers, develop action plans, and monitor against key risk indicators. At least annually, the ERM program is presented to our Board, Audit Committee, and members of management. We have strategically integrated cybersecurity risk management into our broader ERM program to promote a company-wide culture of cybersecurity risk management. This integration ensures that cybersecurity considerations are an integral part of our decision-making processes. Our strategy includes regular employee training and awareness on cybersecurity risks and related best practices, required password complexity, the use of multi-factor authentication, information security protocols, anti-virus and anti-ransomware software, a patch management program, the execution of tabletop exercises on a periodic basis, established policies and protocols for cyber incident response planning and reporting, and ongoing internal cybersecurity testing. Our risk management team works closely with our IT department to continuously evaluate and address cybersecurity risks in alignment with our business objectives and operational needs. We test our ability to respond to cybersecurity incidents on a recurring basis. Additionally, we engage third-party service providers to assist with the ongoing monitoring for cybersecurity events and incidents, as well as to complete risk quantification analysis and perform penetration and vulnerability testing. If any gaps are identified, the third-party service providers also assist with incident assessment and response. We conduct thorough up-front security assessments of all third-party providers before engagement, led by our Vice President, Chief Information Office ("CIO") and our cybersecurity team, and we maintain ongoing monitoring to ensure compliance with our cybersecurity standards. This approach is designed to mitigate risks related to security incidents originating from third parties. We have not encountered cybersecurity incidents or identified risks from cybersecurity threats that have materially impaired our operations or financial standing.
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| Cybersecurity Risk Management Processes Integrated [Flag] | true |
| Cybersecurity Risk Management Processes Integrated [Text Block] | We have strategically integrated cybersecurity risk management into our broader ERM program to promote a company-wide culture of cybersecurity risk management. This integration ensures that cybersecurity considerations are an integral part of our decision-making processes. |
| Cybersecurity Risk Management Third Party Engaged [Flag] | true |
| Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] | true |
| Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] | false |
| Cybersecurity Risk Board of Directors Oversight [Text Block] | The Audit Committee is central to the Board's oversight of cybersecurity risks and bears the primary responsibility for this domain. The Audit Committee is composed of Board members with diverse expertise including risk management, technology, and finance, equipping them to oversee cybersecurity risks effectively. |
| Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] | The Audit Committee is central to the Board's oversight of cybersecurity risks and bears the primary responsibility for this domain. |
| Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] | The Vice President, CIO provides comprehensive quarterly briefings to the Audit Committee. These briefings encompass a broad range of topics, including: •Current cybersecurity landscape and emerging threats; •Status of ongoing cybersecurity initiatives and strategies; •Incident reports and learnings from any cybersecurity events; and •Compliance with regulatory requirements and industry standards. In addition to our quarterly meetings, the Audit Committee, CIO and CEO maintain an ongoing dialogue regarding emerging or potential cybersecurity risks.
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| Cybersecurity Risk Role of Management [Text Block] | Within our organization, we have a management team responsible for assessing and managing cybersecurity risks. The team is led by our CIO and consists of the Cyber Security Incident Response Team ("CSIRT") and internal audit personnel. The CSIRT is comprised of IT management and experienced cybersecurity personnel. The role of the CSIRT is to promptly handle an incident so that containment, investigation, and recovery can occur quickly. Where third-party services are leveraged, they ensure they are engaged as necessary. The CSIRT Leader oversees and prioritizes actions during an incident's detection, analysis, and containment. They are also responsible for conveying the special requirements of high severity incidents to the rest of the organization as well as communicating potential impacts to the CIO. Additionally, they are responsible for understanding the service level agreements ("SLAs") in place with third parties, and the role third parties may play in specific response scenarios. Our CIO has over 30 years of experience in IT, enterprise security, and cyber risk management and has previously held global IT infrastructure and business solutions roles. In addition, our CSIRT Leader has 30 years of technology and cybersecurity experience and has previously held data security and global IT infrastructure positions at risk management and asset protection services companies. The CIO and CSIRT, in combination with the Senior Vice President, Chief Transformation Officer and CEO, play a pivotal role in informing the Audit Committee of the Board of Directors on cybersecurity risks. The Audit Committee is central to the Board's oversight of cybersecurity risks and bears the primary responsibility for this domain. The Audit Committee is composed of Board members with diverse expertise including risk management, technology, and finance, equipping them to oversee cybersecurity risks effectively. The Vice President, CIO provides comprehensive quarterly briefings to the Audit Committee. These briefings encompass a broad range of topics, including: •Current cybersecurity landscape and emerging threats; •Status of ongoing cybersecurity initiatives and strategies; •Incident reports and learnings from any cybersecurity events; and •Compliance with regulatory requirements and industry standards. In addition to our quarterly meetings, the Audit Committee, CIO and CEO maintain an ongoing dialogue regarding emerging or potential cybersecurity risks. The CIO and CEO provide updates on any significant developments in the cybersecurity domain, ensuring the Board's oversight is proactive and responsive. The Audit Committee actively participates in strategic decisions related to cybersecurity, as well as tabletop exercises for tactical response readiness. This involvement ensures that cybersecurity considerations are integrated into the broader strategic objectives of Tennant Company. The Audit Committee conducts an annual review of the Company's cybersecurity posture and the effectiveness of its risk management strategies. This review helps in identifying areas for improvement and ensuring the alignment of cybersecurity efforts with the overall risk management framework.
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| Cybersecurity Risk Management Positions or Committees Responsible [Flag] | true |
| Cybersecurity Risk Management Positions or Committees Responsible [Text Block] | Within our organization, we have a management team responsible for assessing and managing cybersecurity risks. The team is led by our CIO and consists of the Cyber Security Incident Response Team ("CSIRT") and internal audit personnel. The CSIRT is comprised of IT management and experienced cybersecurity personnel. |
| Cybersecurity Risk Management Expertise of Management Responsible [Text Block] | CIO has over 30 years of experience in IT, enterprise security, and cyber risk management and has previously held global IT infrastructure and business solutions roles. In addition, our CSIRT Leader has 30 years of technology and cybersecurity experience and has previously held data security and global IT infrastructure positions at risk management and asset protection services companies. |
| Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] | The Vice President, CIO provides comprehensive quarterly briefings to the Audit Committee. These briefings encompass a broad range of topics, including: •Current cybersecurity landscape and emerging threats; •Status of ongoing cybersecurity initiatives and strategies; •Incident reports and learnings from any cybersecurity events; and •Compliance with regulatory requirements and industry standards. In addition to our quarterly meetings, the Audit Committee, CIO and CEO maintain an ongoing dialogue regarding emerging or potential cybersecurity risks. The CIO and CEO provide updates on any significant developments in the cybersecurity domain, ensuring the Board's oversight is proactive and responsive.
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| Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] | true |
Nature of Business (Policies) |
12 Months Ended |
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Dec. 31, 2025 | |
| Accounting Policies [Abstract] | |
| Basis of Statement Presentation | Basis of Statement Presentation – The consolidated financial statements include the accounts of the Company and all subsidiaries in which we have a controlling financial interest. All intercompany transactions and accounts are eliminated in consolidation. Certain reclassifications to our previously reported financial information have been made to conform to the current period presentation. |
| Translation of Non-U.S. Currency | Translation of Non-U.S. Currency – Foreign currency-denominated assets and liabilities have been translated to U.S. dollars at year-end exchange rates, while income and expense items are translated at average exchange rates prevailing during the year. Gains or losses resulting from translation are included as a separate component of accumulated other comprehensive loss ("AOCL"). The majority of translation adjustments are not adjusted for income taxes as substantially all translation adjustments relate to permanent investments in non-U.S. subsidiaries. Net foreign currency transaction losses are included in income before income taxes on the consolidated statements of income.
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| Use of Estimates | Use of Estimates – The preparation of our consolidated financial statements in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) requires us to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes, disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used in determining, among other items, sales promotions and incentives accruals, inventory valuation, warranty reserves, allowance for doubtful accounts, pension and postretirement accruals, useful lives for intangible assets, valuing investments, and future cash flows associated with impairment testing for goodwill and other long-lived assets. Actual results could differ from our estimates.
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| Cash and Cash Equivalents | Cash and Cash Equivalents – We consider all highly liquid investments with original maturities of three months or less from the date of purchase to be cash equivalents.
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| Restricted Cash | Restricted Cash – We have a total of $0.2 million as of December 31, 2025 and 2024 that serves as collateral backing certain bank guarantees and is therefore restricted. This money is invested in time deposits. Restricted cash is recorded in cash, cash equivalents and restricted cash on the consolidated balance sheets.
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| Receivables | Receivables – Credit is granted to our customers in the normal course of business. Receivables are recorded at original carrying value less reserves for estimated uncollectible accounts and sales returns. To assess the collectability of these receivables, we perform ongoing credit evaluations of our customers’ financial condition. Through these evaluations, we may become aware of a situation where a customer may not be able to meet its financial obligations due to deterioration of its financial viability, credit ratings or bankruptcy. The reserve requirements are based on the best facts available to us and are reevaluated and adjusted as additional information becomes available. Our reserves are also based on amounts determined by using percentages applied to trade receivables, using a loss rate method. We considered the following in determining the expected loss rate: (1) historical loss rate, (2) macroeconomic factors, and (3) creditworthiness of customers. The historical loss rate is calculated by taking the yearly write-off expense, net of collections, as a percentage of the annual average balance of trade receivables for each of the past three years. An account is considered past-due or delinquent when it has not been paid within the contractual terms. Uncollectible accounts are written off against the reserves when it is deemed that a customer account is uncollectible.
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| Inventories | Inventories – Inventories are valued at the lower of cost or net realizable value. Cost is determined on a first-in, first-out (“FIFO”) basis except for inventories in North America, which are determined on a last-in, first-out (“LIFO”) basis.
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| Property, Plant and Equipment | Property, Plant and Equipment – Property, plant and equipment is carried at cost. Additions and improvements that extend the lives of the assets are capitalized, while expenditures for repairs and maintenance are expensed as incurred. We generally depreciate buildings and improvements by the straight-line method over a life of 30 years. Other property, plant and equipment are generally depreciated using the straight-line method based on lives of 3 years to 15 years.
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| Leases | Leases – We assess whether an arrangement is a lease at inception. Operating leases with an initial term of 12 months or less are expensed as incurred as short-term lease cost. We have elected the practical expedient to not separate lease and non-lease components for all asset classes. Operating lease assets and operating lease liabilities are calculated based on the present value of the future lease payments over the lease term at the lease commencement date. When future lease payments are based on an index or rate, operating lease assets and operating lease liabilities are calculated using the prevailing index or rate at the lease commencement date. As the implicit rate is not readily determinable, we use our incremental borrowing rate based on the information available at the lease start date in determining the present value of future payments. Information used in determining the incremental borrowing rates for the Company's leases includes: (1) the market yield on the Company's traded bond, adjusted for the presence of collateral and the difference in terms of the bond and the leases, (2) consideration of the currency in which each lease was denominated, and (3) the lease term. The operating lease asset is increased by any lease payments made at or before the lease start date, increased by initial direct costs incurred, and reduced by lease incentives. The lease term includes options to renew or terminate the lease when it is reasonably certain that we will exercise that option. The exercise of lease renewal options is at our sole discretion. The useful life of lease assets and leasehold improvements are limited by the lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Certain leases also include options to purchase the leased asset. Lease expense for operating leases is recognized on a straight-line basis over the lease term. Certain leases contain variable lease payments for items such as index-based changes in rent, fuel and common area maintenance, which we expense as incurred as variable lease cost. Finance leases are not material to our consolidated financial statements.
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| Goodwill | Goodwill – Goodwill represents the excess of cost over the fair value of net assets of businesses acquired and is allocated to our reporting units at the time of the acquisition. We analyze goodwill on an annual basis as of October 1 and when an event occurs, or circumstances change that may reduce the fair value of one of our reporting units below its carrying amount. We have the option of first analyzing qualitative factors to determine whether it is more likely than not that the fair value of any reporting unit is less than its carrying amount. However, we may elect to perform a quantitative goodwill impairment test even if no indications of a potential impairment exist. For the 2025 annual goodwill impairment test for the North America and Latin America reporting units, we elected to perform a qualitative assessment to determine whether it was more likely than not that the fair value of each reporting unit was less than its carrying amount. In performing this assessment, we considered relevant events and circumstances, including industry, market and macroeconomic conditions, as well as company-specific and reporting unit-specific factors. Based on this evaluation, we concluded that it was not more likely than not that the fair value of either reporting unit was less than its carrying amount. Accordingly, a quantitative goodwill impairment test was not required, and no impairment of goodwill was recognized for these reporting units during 2025. During 2024, a qualitative goodwill assessment was performed for the North America and Latin America reporting units while a quantitative assessment was performed for the EMEA and APAC reporting units. Our assessments indicated that there was no goodwill impairment in any of our reporting units as of our annual assessment date.
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| Intangible Assets | Intangible Assets – Intangible assets consist of long-lived customer lists, trade names and technology. Generally, intangible assets classified as trade names are amortized on a straight-line basis and intangible assets classified as customer lists or technology are amortized using an accelerated method of amortization.
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| Impairment of Long-Lived Assets and Assets Held for Sale | Impairment of Long-Lived Assets and Assets Held for Sale – We periodically review our intangible and long-lived assets for impairment and assess whether events or circumstances indicate that the carrying amount of the assets may not be recoverable. We generally deem an asset group to be impaired if an estimate of undiscounted future operating cash flows are less than its carrying amount. If impaired, an impairment loss is recognized based on the excess of the carrying amount of the individual asset group over its fair value. Assets held for sale are measured at the lower of their carrying value or fair value less costs to sell. Upon retirement or disposition, the asset cost and related accumulated depreciation or amortization are removed from the accounts and a gain or loss is recognized based on the difference between the fair value of proceeds received and carrying value of the assets held for sale.
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| Purchase of Common Stock | Purchase of Common Stock – We repurchase our common stock under both the 2025 and 2016 repurchase program authorized by our Board of Directors. These programs allow us to repurchase up to an aggregate of 3,000,000 shares of our common stock, and 1,514,063 shares remain authorized under the 2025 program. Upon repurchase, the par value is charged to common stock and the remaining purchase price is charged to additional paid-in capital. If the amount of the remaining purchase price causes the additional paid-in capital account to be in a negative position, this amount is then reclassified to retained earnings. Common stock repurchased is included in shares authorized but is not included in shares outstanding.
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| Warranty | Warranty – We record a liability for estimated warranty claims at the time of sale. The amount of the liability is based on the trend in the historical ratio of claims to sales, the historical length of time between the sale and resulting warranty claim, new product introductions and other factors. In the event we determine that our current or future product repair and replacement costs exceed our estimates, an adjustment to these reserves would be charged to earnings in the period such determination is made. Warranty terms on machines range from to four years. Warranty costs are recorded as a component of selling and administrative expense in the consolidated statements of income.
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| Pension and Profit Sharing Plans | Pension and Profit Sharing Plans – Substantially all U.S. employees are covered by various retirement benefit plans, including postretirement medical plans and defined contribution savings plans. Retirement benefits for eligible employees in foreign locations are funded principally through defined benefit plans, annuity or government programs.
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| Postretirement Benefits | Postretirement Benefits – We accrue and recognize the cost of retiree health benefits over the employees’ period of service based on actuarial estimates. Benefits are only available for U.S. employees hired before January 1, 1999.
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| Derivative Financial Instruments | Derivative Financial Instruments – We use cross-currency swaps, interest rate swaps and foreign exchange forward and option contracts to manage risks generally associated with foreign exchange rate and interest rate volatility. We account for our hedging instruments as either assets or liabilities on the consolidated balance sheets and measure them at fair value. Gains and losses resulting from changes in fair value are accounted for depending on the use of the derivative and whether it is designated and qualifies for hedge accounting. Gains and losses for all instruments that do not qualify for hedge accounting are recorded each period to net foreign currency transaction loss in our consolidated statements of income. Changes in the fair value of designated hedges are reported in accumulated other comprehensive loss on the consolidated balance sheet until a related transaction occurs. If the underlying hedged transaction ceases to exist, all changes in fair value of the related derivatives that have not been settled are recorded in our consolidated statements of income.
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| Revenue Recognition | Revenue Recognition – Revenue is recognized when control transfers under the terms of the contract with our customers. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Sales and other taxes we collect concurrently with revenue-producing activities are excluded from revenue. We do not account for shipping and handling as a distinct performance obligation as we generally perform shipping and handling activities after we transfer control of goods to the customer. We have elected to account for shipping and handling costs associated with outbound freight after control of goods has transferred to a customer as a fulfillment cost. Incidental items that are immaterial in the context of the contract are not recognized as a separate performance obligation. We do not have any significantly extended payment terms as payment is generally received within one year of the point of sale. In general, we transfer control and recognize a sale at the point in time when products are shipped from our manufacturing facilities both direct to consumers and to distributors. Service revenue is recognized in the period the service is performed or ratably over the period of the related service contract. Consideration related to service contracts is deferred if the proceeds are received in advance of the satisfaction of the performance obligations and recognized over the contract period as the performance obligation is met. We use an output method to measure progress toward completion for certain prepaid service contracts, as this method appropriately depicts performance toward satisfaction of the performance obligations. For contracts with multiple performance obligations (i.e., a product and service component), we allocate the transaction price to the performance obligations in proportion to their stand-alone selling prices. We use an observable price to determine the stand-alone selling price for separate performance obligations. When allocating on a relative stand-alone selling price basis, any discounts contained within the contract are allocated proportionately to all of the performance obligations in the contract. We generally expense the incremental costs of obtaining a contract when incurred because the amortization period would be less than one year. These costs relate primarily to sales commissions and are recorded in selling and administrative expense in the consolidated statements of income. We do not disclose the value of unsatisfied performance obligations for contracts with an original expected length of one year or less. In addition, we do not adjust the promised amount of consideration for the effects of a significant financing component if we expect, at contract inception, that the period between when we transfer a promised good or service to a customer and when the customer pays for that good or service will be one year or less.
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| Share-Based Compensation | Share-Based Compensation – We account for share-based compensation awards on a fair value basis. The estimated grant date fair value of each option award is recognized in income on a straight-line basis over the requisite service period (generally the vesting period). The estimated fair value of each option award is calculated using the Black-Scholes option-pricing model. From time to time, we have elected to modify the terms of the original grant. These modified grants are accounted for as a new award and measured using the fair value method, resulting in the inclusion of additional compensation expense in our consolidated statements of income. Restricted share awards and units are recorded as compensation cost over the requisite service periods based on the market value on the date of grant. To determine the amount of compensation cost to be recognized in each period for these awards and for option awards, we account for forfeitures as they occur. Performance share awards ("PSUs") are stock awards where the ultimate number of shares issued will be contingent on the Company’s performance against certain performance goals. The Compensation Committee can adjust performance goals or modify the manner of measuring or evaluating a performance goal using its discretion. The fair value of each PSU is based on the market value on the date of grant. We recognize expense related to the estimated vesting of our PSUs granted. The estimated vesting of the PSUs is based on the probability of achieving certain performance metrics over the specified performance period. To determine the amount of compensation cost to be recognized in each period, we estimate forfeitures.
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| Research and Development | Research and Development – Research and development costs are expensed as incurred.
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| Advertising Costs | Advertising Costs – We advertise products, technologies and solutions to customers and prospective customers through a variety of marketing campaign and promotional efforts. These efforts include tradeshows, online advertising, e-mail marketing, mailings, sponsorships and telemarketing. Advertising costs are expensed as incurred. |
| Income Taxes | Income Taxes – Deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the book and tax bases of existing assets and liabilities. A valuation allowance is provided when, in management’s judgment, it is more likely than not that some portion or all of the deferred tax asset will not be realized. We have established uncertain tax position accruals using management’s best judgment. We adjust these accruals as facts and circumstances change. Interest expense is recognized in the first period the interest would begin accruing. Penalties are recognized in the period we claim or expect to claim the position in our tax return. Interest and penalty expenses are classified as an income tax expense.
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| Earnings Per Share | Earnings Per Share – Basic earnings per share is computed by dividing net earnings attributable to Tennant Company by the weighted average shares outstanding during the period. Diluted earnings per share assumes conversion of potentially dilutive stock options, performance shares, restricted shares and restricted stock units. These are not included in our computation of diluted earnings per share if we have a net loss attributable to the Company in a reporting period or if the instrument's effects are anti-dilutive.
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| Investments, Available-for-Sale | Investments, Available-for-Sale – As described in Note 12, debt securities classified as available-for-sale securities are carried at fair market value, with the unrealized gains and losses, net of tax, included in the determination of comprehensive income (loss) and reported in shareholders' equity. These investments are subject to periodic impairment review. |
| Investments, Measurement Alternative | Investments, Measurement Alternative – Our investments, as described in Note 12 which are valued under the measurement alternative include equity securities for which the Company does not have significant influence and fair value is not readily determinable. Accounting Standard Update ("ASU") 2016-01 requires equity securities to be recorded at cost and adjusted to fair value at each reporting period. However, the guidance allows for a measurement alternative, which is to record investments at cost, less impairment, if any, and subsequently adjust for observable price changes of identical or similar investments of the same issuer. Due to the lack of readily determinable fair values for such investments, for which the Company does not have significant influence, the Company accounts for these investments under the measurement alternative at cost, less impairment. The Company performs qualitative impairment assessments on its investments recorded under the measurement alternative.
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| Investments, Equity Method | Investments, Equity Method – As described in Note 13, the Company uses the equity method of accounting for equity investments if the investment provides the ability to exercise significant influence, but not control, over operating and financial policies of the investee. Judgment regarding the level of influence over each equity method investment includes considering key factors such as the Company’s ownership interest, legal form of the investee (e.g. limited liability partnership), representation on the board of directors, participation in policy-making decisions and material intra-entity transactions. Under the equity method of accounting, investments are stated at initial cost and are adjusted for subsequent additional investments and the proportionate share of earnings or losses and dividends, including consideration of basis differences resulting from the difference between the initial carrying amount of the investment and the underlying equity in net assets, as applicable. The Company evaluates equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amount of the investment might not be recoverable. Factors considered by the Company when reviewing an equity method investment for impairment include the length of time (duration) and the extent (severity) to which the fair value of the equity method investment has been less than cost, the investee’s financial condition and near-term prospects, and the intent and ability to hold the investment for a period of time sufficient to allow for anticipated recovery. An impairment that is other-than-temporary is recognized in the period identified.
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| Newly Adopted Accounting Pronouncements | Newly Adopted Accounting Policies Improvements to Income Tax Disclosures In December 2023, the FASB issued ASU 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to the rate reconciliation and income taxes paid information. The amendments in this ASU are required to be adopted for fiscal years beginning after December 15, 2024. We have adopted the new standard on a prospective basis effective December 31, 2025. While the adoption has no impact on our consolidated financial statements, it has resulted in incremental disclosures within the footnotes of our consolidated financial statements. Refer to Note 18, Income Taxes for the inclusion of the new required disclosures.
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Revenue (Tables) |
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| Schedule of Disaggregation of Revenue | The following tables illustrate the disaggregation of revenue by geographic area, groups of similar products and services and sales channels for the years ended December 31: Net sales by geographic area
Net sales are attributed to each geographic area based on the end user country and are net of intercompany sales. Net sales by groups of similar products and services
Net sales by sales channel
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| Schedule of Change in Sales Incentive Accrual Balance and Deferred Revenue Balance | The change in our sales incentive accrual balance for the years ended December 31, 2025 and 2024 was as follows:
The change in the deferred revenue balance for the years ended December 31, 2025 and 2024 was as follows:
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| Schedule of Recognition of Net Sales in Future Periods | Of this, we expect to recognize the following approximate amounts in net sales in the following periods:
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Management Actions (Tables) |
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| Schedule of Pre-Tax restructuring charges | The following pre-tax restructuring charges were included in the consolidated statements of income:
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| Schedule of Reconciliation of Liability Balance of Severance and Related Costs | A reconciliation to the ending liability balance of severance and related costs as of December 31, 2025 and 2024 is as follows:
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Acquisitions (Tables) |
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| Acquisitions | The proforma impact of this acquisition is immaterial to our operations.
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Inventories (Tables) |
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Inventory Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Inventories | Inventories as of December 31 consisted of the following:
(a)Finished goods include machines, parts and consumables and component parts that are used in our products. (b)The difference between replacement cost and the stated LIFO inventory value is not materially different from the reserve for the LIFO valuation method.
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Property, Plant and Equipment (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, Plant and Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Property, Plant and Equipment | Property, plant and equipment and related accumulated depreciation, including equipment under finance leases, as of December 31, consisted of the following:
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Goodwill and Intangible Assets (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Changes in the Carrying Amount of Goodwill | The changes in the carrying amount of goodwill were as follows:
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| Schedule of Balances of Acquired Intangible Assets, Excluding Goodwill | The balances of acquired intangible assets, excluding goodwill, were as follows:
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| Schedule of Estimated Aggregate Amortization Expense | Estimated aggregate amortization expense based on the current carrying amount of amortizable intangible assets for each of the five succeeding years is as follows:
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Debt (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Debt Outstanding | Debt outstanding as of December 31 consisted of the following:
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| Schedule of Aggregate Maturities of Outstanding Debt | The aggregate maturities of our outstanding debt, excluding unamortized debt issuance costs, as of December 31, 2025, are as follows:
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Other Current Liabilities (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Payables and Accruals [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Other Current Liabilities | Other current liabilities as of December 31 consisted of the following:
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Derivatives (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Fair Value of Derivative Instruments | The fair value of derivative instruments on our consolidated balance sheets as of December 31 consisted of the following:
(a)Contracts that mature within the next 12 months are included in other current assets and other current liabilities for asset derivatives and liabilities derivatives, respectively, on our consolidated balance sheets. Contracts with maturities greater than 12 months are included in other assets and other liabilities for asset derivatives and liability derivatives, respectively, in our consolidated balance sheets. Amounts included in our consolidated balance sheets are recorded net where a right of offset exists with the same derivative counterparty.
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| Schedule of Effects of Derivatives Designated as Hedging Instruments | The following tables include the amounts in the consolidated statements of income in which the effects of derivative instruments are recorded and the effects of derivative instruments activity on these line items for the years ended December 31, 2025 and December 31, 2024:
The effect of derivative instruments designated as hedges and derivative instruments not designated as hedges in our consolidated statements of income for the three years ended December 31 were as follows:
(a)Net change in the fair value of the effective portion classified in other comprehensive income (loss). (b)Classified in net foreign currency transaction (loss) gain.
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Fair Value Measurements (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Marketable Securities | As of December 31, 2025, and December 31, 2024, a comparison of cost and market values of our debt and equity securities was as follows:
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| Schedule of Maturities of Debt Securities | Scheduled maturities of our debt securities were as follows:
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| Schedule of Assets and Liabilities Subject to Fair Value Measurements | Our population of assets and liabilities subject to fair value measurements as of December 31, 2025 were as follows:
Our population of assets and liabilities subject to fair value measurements as of December 31, 2024 were as follows:
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Retirement Benefit Plans (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retirement Benefits [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Changes In Benefit Obligations and Plan Assets | Summarized financial information about our defined benefit pension plans and retiree health care plan is presented below:
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| Schedule of Changes In Accumulated Other Comprehensive Loss | Amounts recognized in other comprehensive income in 2025 and 2024 were as follows:
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| Schedule of Net Benefit Costs | The components of the net periodic benefit expense (income) for the three years ended December 31 were as follows:
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| Schedule of Assumed Health Care Cost Trend Rates | Assumed health care cost trend rates as of December 31 were as follows:
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| Schedule of Weighted-Average Assumptions | Weighted-average assumptions used to determine benefit obligations as of December 31 were as follows:
Weighted-average assumptions used to determine net periodic benefit costs as of December 31 were as follows:
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| Schedule of Changes in Fair Value of Plan Assets | The fair value of our U.K. Pension Plan and the respective level in the fair value hierarchy as of December 31, 2025 were as follows:
(a)This category is comprised of investments in fixed income securities. (b)This represents the U.K. Pension Plan partial buy-in assets comprised of investments in insurance contracts. The fair value of our U.K. Pension Plan and the respective level in the fair value hierarchy as of December 31, 2024 were as follows:
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| Schedule of Reconciliation of Level 3 Investments | A reconciliation of the beginning and ending balances of the Level 3 investments of our U.K. Pension Plan during the years ended December 31 was as follows:
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| Schedule Of Benefit Payments For Expected Future Service | Estimated benefit payments, which reflect expected future service, as appropriate, are expected to be paid from 2026 to 2035 as follows:
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Shareholders' Equity (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Stockholders' Equity Note [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accumulated Other Comprehensive Loss, Net of Tax | The changes in components of accumulated other comprehensive loss, net of tax, were as follows:
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Leases (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leases [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Lease Assets and Liabilities | The lease assets and liabilities as of December 31 were as follows:
The lease term and discount rate as of December 31 were as follows:
Other information related to cash paid related to lease liabilities and lease assets obtained for the years ended December 31 was as follows:
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| Schedule of Lease Cost | The lease cost for the three years ended December 31 was as follows:
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| Schedule of Maturities of Operating Lease Liability | The maturity of lease liabilities as of December 31, 2025 was as follows:
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| Schedule of Maturities of Finance Lease Liability | The maturity of lease liabilities as of December 31, 2025 was as follows:
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Income Taxes (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Income Before Income Taxes | Income before income taxes for the three years ended December 31 was as follows:
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| Schedule of Income Tax Expense (Benefit) | Income tax expense for the three years ended December 31 was as follows:
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| Schedule of Effective Income Tax Rate | for the year ended December 31, 2025 in accordance with ASU 2023-09, which was adopted prospectively in 2025:
The following table presents the reconciliation between our statutory income taxes and effective income taxes for the two years ended December 31 prior to the adoption of ASU 2023-09:
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| Schedule of Deferred Tax Assets and Liabilities | Deferred tax assets and liabilities were comprised of the following as of December 31:
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| Schedule of Cash Income Taxes Paid | The amount of cash income taxes paid for the year ended December 31, 2025, disaggregated in accordance with ASU 2023-09, is as follows:
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| Schedule of Unrecognized Tax Benefits | A reconciliation of the beginning and ending amount of unrecognized tax benefits was as follows:
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Share-Based Compensation (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-Based Payment Arrangement [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Valuation Assumptions | The following table illustrates the valuation assumptions used for the 2023 stock option grants:
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| Schedule of Activity for Stock Option Awards | The following table summarizes stock option activity during the year ended December 31, 2025:
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| Schedule of Activity for Nonvested Restricted Share Awards | The following table summarizes restricted share award activity during the year ended December 31, 2025:
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| Schedule of Activity for Nonvested Performance Share Awards | The following table summarizes performance share awards activity during the year ended December 31, 2025:
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| Schedule of Activity for Nonvested Restricted Stock Units | The following table summarizes restricted stock units activity during the year ended December 31, 2025:
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Income Attributable to Tennant Company Per Share (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Computations of Basic and Diluted Earnings per Share | The computations of basic and diluted earnings attributable to Tennant Company per share for the years ended December 31 were as follows:
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Segment Reporting (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Net Sales and Long-lived Assets by Geographic Area | The following table presents net sales by geographic area for the three years ended December 31:
The following table presents long-lived assets by geographic area as of December 31:
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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disaggregation of Revenue [Line Items] | |||
| Net sales | $ 1,203.5 | $ 1,286.7 | $ 1,243.6 |
| Sales direct to consumer | |||
| Disaggregation of Revenue [Line Items] | |||
| Net sales | 831.5 | 905.7 | 854.4 |
| Sales to distributors | |||
| Disaggregation of Revenue [Line Items] | |||
| Net sales | 372.0 | 381.0 | 389.2 |
| Equipment | |||
| Disaggregation of Revenue [Line Items] | |||
| Net sales | 714.7 | 808.7 | 776.4 |
| Parts and consumables | |||
| Disaggregation of Revenue [Line Items] | |||
| Net sales | 275.6 | 274.3 | 279.5 |
| Service and other | |||
| Disaggregation of Revenue [Line Items] | |||
| Net sales | 213.2 | 203.7 | 187.7 |
| Americas | |||
| Disaggregation of Revenue [Line Items] | |||
| Net sales | 792.0 | 888.5 | 840.3 |
| Europe, Middle East and Africa (EMEA) | |||
| Disaggregation of Revenue [Line Items] | |||
| Net sales | 334.6 | 318.5 | 314.4 |
| Asia Pacific (APAC) | |||
| Disaggregation of Revenue [Line Items] | |||
| Net sales | $ 76.9 | $ 79.7 | $ 88.9 |
Revenue - Contract Liabilities (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Sales Incentives | ||
| Movement in Deferred Sales Inducements [Roll Forward] | ||
| Beginning balance | $ 16.1 | $ 21.2 |
| Additions to sales incentive accrual | 20.3 | 22.4 |
| Contract payments | (22.4) | (27.2) |
| Foreign currency fluctuations | 0.8 | (0.3) |
| Ending balance | 14.8 | 16.1 |
| Movement in Deferred Revenue [Roll Forward] | ||
| Foreign currency fluctuations | 0.8 | (0.3) |
| Maintenance | ||
| Movement in Deferred Sales Inducements [Roll Forward] | ||
| Foreign currency fluctuations | 0.7 | (0.6) |
| Movement in Deferred Revenue [Roll Forward] | ||
| Beginning balance | 20.6 | 10.3 |
| Increase in deferred revenue representing our obligation to satisfy future performance obligations | 31.9 | 31.7 |
| Decrease in deferred revenue for amounts recognized in net sales for satisfied performance obligations | (20.8) | (20.8) |
| Foreign currency fluctuations | 0.7 | (0.6) |
| Ending balance | $ 32.4 | $ 20.6 |
Revenue - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disaggregation of Revenue [Line Items] | ||
| Deferred revenue, current | $ 16.6 | $ 9.8 |
| Other Current Liabilities | Maintenance | ||
| Disaggregation of Revenue [Line Items] | ||
| Deferred revenue, current | 16.6 | 9.8 |
| Other liabilities | Maintenance | ||
| Disaggregation of Revenue [Line Items] | ||
| Deferred revenue, noncurrent | $ 15.8 | $ 10.8 |
| Minimum | ||
| Disaggregation of Revenue [Line Items] | ||
| Standard prepaid maintenance contract time period (months) | 12 months | |
| Maximum | ||
| Disaggregation of Revenue [Line Items] | ||
| Standard prepaid maintenance contract time period (months) | 60 months |
Management Actions - Pre-Tax Severance Related Charges (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Restructuring Cost and Reserve [Line Items] | ||
| Total pre-tax restructuring costs | $ 6.4 | $ 8.2 |
| Selling, General and Administrative Expenses | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance-related costs | $ 6.4 | $ 8.2 |
| Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] | Selling and administrative expense | |
Management Actions - Reconciliation of Liability Balance of Severance and Related Costs (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Restructuring Reserve [Roll Forward] | ||
| Beginning balance | $ 8.6 | $ 2.4 |
| New charges | 8.8 | 8.8 |
| Cash payments | (8.7) | (2.3) |
| Foreign currency adjustments | 1.1 | 0.3 |
| Adjustment to accrual | (2.4) | (0.6) |
| Ending balance | $ 7.4 | $ 8.6 |
Acquisitions - Narrative (Details) - USD ($) $ in Thousands |
Sep. 01, 2025 |
Feb. 29, 2024 |
|---|---|---|
| Management and Financing GmbH | ||
| Business Combination [Line Items] | ||
| Business acquisition, percentage of voting interests acquired | 100.00% | |
| Business Combination, Consideration Transferred | $ 34,900 | |
| Reinigungstechnik 4 You GmbH | ||
| Business Combination [Line Items] | ||
| Business acquisition, percentage of voting interests acquired | 100.00% | |
| Business Combination, Consideration Transferred | $ 3,600 |
Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands |
Feb. 29, 2024 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|---|
| LIABILITIES | ||||
| Goodwill | $ 208,600 | $ 185,600 | $ 187,400 | |
| Management and Financing GmbH | ||||
| Components of purchase price: | ||||
| Purchase price | $ 31,000 | |||
| Settlement of preexisting transactions | 3,900 | |||
| Total purchase price | 34,900 | |||
| ASSETS | ||||
| Cash | 5,400 | |||
| Other current assets | 8,900 | |||
| Intangible assets subject to amortization | 13,800 | |||
| Other assets | 5,700 | |||
| Total identifiable assets acquired | 33,800 | |||
| LIABILITIES | ||||
| Current liabilities | (1,600) | |||
| Long-term liabilities | (6,700) | |||
| Total identifiable liabilities assumed | (8,300) | |||
| Net assets acquired | 25,500 | |||
| Goodwill | 9,400 | |||
| Management and Financing GmbH | Customer lists | ||||
| ASSETS | ||||
| Intangible assets subject to amortization | 13,200 | |||
| Management and Financing GmbH | Backlog | ||||
| ASSETS | ||||
| Intangible assets subject to amortization | $ 600 |
Inventories - Inventories (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Inventory [Line Items] | ||
| Excess of FIFO over LIFO cost | $ (54.9) | $ (50.4) |
| Total LIFO inventories | 65.6 | 73.4 |
| Total FIFO inventories | 132.9 | 110.4 |
| Total inventories | 198.5 | 183.8 |
| Inventories carried at LIFO: | ||
| Inventory [Line Items] | ||
| Finished goods | 85.0 | 85.4 |
| Raw materials and work-in-process | 35.5 | 38.4 |
| Inventories carried at FIFO: | ||
| Inventory [Line Items] | ||
| Finished goods | 64.3 | 53.2 |
| Raw materials and work-in-process | $ 68.6 | $ 57.2 |
Property, Plant and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Total property, plant and equipment | $ 478.8 | $ 495.3 |
| Less: accumulated depreciation | (289.0) | (310.9) |
| Property, plant and equipment, net | 189.8 | 184.4 |
| Land | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, plant and equipment | 27.9 | 24.1 |
| Buildings and improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, plant and equipment | 144.0 | 134.1 |
| Machinery and manufacturing equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, plant and equipment | 243.5 | 210.4 |
| Office equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, plant and equipment | 59.1 | 122.2 |
| Construction in progress | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property, plant and equipment | $ 4.3 | $ 4.5 |
Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Property, Plant and Equipment [Abstract] | |||
| Depreciation expense | $ 45.0 | $ 40.1 | $ 36.4 |
Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Sep. 01, 2025 |
Feb. 29, 2024 |
|
| Finite-Lived Intangible Assets [Line Items] | |||||
| Amortization expense | $ 13,700 | $ 15,000 | $ 14,700 | ||
| Management and Financing GmbH | |||||
| Finite-Lived Intangible Assets [Line Items] | |||||
| Intangible assets subject to amortization | $ 13,800 | ||||
| Reinigungstechnik 4 You GmbH | |||||
| Finite-Lived Intangible Assets [Line Items] | |||||
| Intangible assets subject to amortization | $ 1,200 | ||||
| Customer Lists | Management and Financing GmbH | |||||
| Finite-Lived Intangible Assets [Line Items] | |||||
| Intangible assets subject to amortization | $ 13,200 | ||||
Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Goodwill [Roll Forward] | ||
| Beginning balance | $ 218.1 | $ 220.7 |
| Additions | 1.4 | 9.4 |
| Beginning balance, accumulated impairment losses | (32.5) | (33.3) |
| Beginning balance, net | 185.6 | 187.4 |
| Foreign currency fluctuations | 24.4 | (12.0) |
| Foreign currency fluctuations, accumulated impairment losses | (2.8) | 0.8 |
| Foreign currency fluctuations, net | 21.6 | (11.2) |
| Ending balance | 243.9 | 218.1 |
| Ending balance, accumulated impairment losses | (35.3) | (32.5) |
| Ending balance, net | $ 208.6 | $ 185.6 |
Goodwill and Intangible Assets - Balances of Acquired Intangible Assets, Excluding Goodwill (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Finite-Lived Intangible Assets [Line Items] | ||
| Original cost | $ 222.7 | $ 197.4 |
| Accumulated amortization | (170.1) | (138.7) |
| Carrying amount | 52.6 | 58.7 |
| Customer Lists | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Original cost | 174.9 | 154.6 |
| Accumulated amortization | (128.1) | (104.9) |
| Carrying amount | $ 46.8 | $ 49.7 |
| Weighted-average original life (in years) | 14 years | 15 years |
| Trade Names | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Original cost | $ 31.1 | $ 27.6 |
| Accumulated amortization | (26.6) | (20.8) |
| Carrying amount | $ 4.5 | $ 6.8 |
| Weighted-average original life (in years) | 10 years | 11 years |
| Technology | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Original cost | $ 16.7 | $ 15.2 |
| Accumulated amortization | (15.4) | (13.0) |
| Carrying amount | $ 1.3 | $ 2.2 |
| Weighted-average original life (in years) | 12 years | 11 years |
Goodwill and Intangible Assets - Estimated Aggregate Amortization Expense (Details) $ in Millions |
Dec. 31, 2025
USD ($)
|
|---|---|
| Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract] | |
| 2026 | $ 12.9 |
| 2027 | 9.3 |
| 2028 | 7.5 |
| 2029 | 6.7 |
| 2030 | 6.2 |
| Thereafter | 10.0 |
| Total | $ 52.6 |
Debt - Debt Outstanding (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Finance lease liabilities | $ 1.1 | $ 1.2 |
| Bank overdrafts | 0.0 | 0.8 |
| Total debt | 273.6 | 199.5 |
| Less: current portion of long-term debt | (0.4) | (1.3) |
| Long-term debt | 273.2 | 198.2 |
| Current finance lease liability | 0.4 | 0.5 |
| The 2021 Credit Agreement | ||
| Debt Instrument [Line Items] | ||
| Current finance lease liability | 0.4 | |
| The 2021 Credit Agreement | Revolving credit facility borrowings | ||
| Debt Instrument [Line Items] | ||
| Outstanding borrowings | $ 272.5 | $ 197.5 |
Debt - Debt Maturities (Details) $ in Millions |
Dec. 31, 2025
USD ($)
|
|---|---|
| Debt Disclosure [Abstract] | |
| 2026 | $ 0.4 |
| 2027 | 0.4 |
| 2028 | 0.2 |
| 2029 | 272.6 |
| 2030 | 0.0 |
| Thereafter | 0.0 |
| Total aggregate maturities | $ 273.6 |
Other Current Liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Payables and Accruals [Abstract] | ||
| Taxes | $ 18.5 | $ 20.5 |
| Warranty reserve | 6.5 | 6.9 |
| Deferred revenue | 16.6 | 9.8 |
| Customer sales incentives | 14.8 | 16.1 |
| Freight | 3.6 | 4.0 |
| Restructuring | 7.4 | 8.5 |
| Operating leases | 21.7 | 18.5 |
| Miscellaneous accrued expenses | 35.2 | 26.6 |
| Total other current liabilities | $ 124.3 | $ 110.9 |
Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Feb. 21, 2024 |
|---|---|---|---|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
| Fair value of total debt | $ 281.4 | ||
| Carrying value of total debt | 273.6 | $ 199.5 | |
| Debt securities | $ 11.8 | 12.3 | |
| Equity securities | $ 20.0 | ||
| Redeemable Preferred Stock | |||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
| Debt securities | $ 12.1 | ||
| Nonredeemable Preferred Stock | |||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
| Equity securities | 12.2 | ||
| Warrant | |||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
| Equity securities | $ 7.8 |
Fair Value Measurements - Schedule of Debt and Equity Securities (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Fair Value Disclosures [Abstract] | ||
| Available-for-sale debt securities, cost | $ 12.1 | $ 12.1 |
| Equity securities, cost | 20.0 | |
| Total debt and equity securities, cost | 32.1 | |
| Available-for-sale debt securities, fair value | 11.8 | 12.3 |
| Equity securities, fair value | 20.0 | |
| Total debt and equity securities, fair value | 32.3 | |
| Available-for-sale debt securities, gross unrealized gains | 0.0 | 0.2 |
| Available-for-sale debt securities, gross unrealized losses | $ (0.3) | $ 0.0 |
Fair Value Measurements - Schedule of Maturities of Debt Securities (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Cost | ||
| After 5 years through 10 years | $ 12.1 | |
| Total debt securities | 12.1 | $ 12.1 |
| Fair Value | ||
| After 5 years through 10 years | 11.8 | |
| Total debt securities | $ 11.8 | $ 12.3 |
Retirement Benefit Plans - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |||
| Matching contribution, percent | 3.00% | ||
| Minimum service period required to be eligible | 1 year | ||
| Cost | $ 5.6 | $ 10.0 | $ 10.5 |
| UNITED STATES | Supplemental Employee Retirement Plan | |||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |||
| Plan assets, amount | 0.0 | 0.0 | 0.0 |
| Non-U.S. Plan | Pension Plan | |||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |||
| Plan assets, amount | 13.4 | 12.6 | 12.7 |
| Expected future employer contributions | 0.3 | ||
| UK Pension Plan [Member] | Non-U.S. Plan | Pension Plan | |||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |||
| Plan assets, amount | 6.2 | $ 12.6 | $ 12.7 |
| Retiree Plan | UNITED STATES | |||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |||
| Expected future employer contributions | $ 0.6 | ||
Retirement Benefit Plans - Reconciliation of Level 3 Investments (Details) - Non-U.S. Plan - Pension Plan - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] | ||
| Fair value at beginning of year | $ 12.6 | $ 12.7 |
| Fair value at end of year | 13.4 | 12.6 |
| UK Pension Plan [Member] | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] | ||
| Fair value at beginning of year | 12.6 | 12.7 |
| Purchases, sales, issuances and settlements, net | (0.5) | (0.4) |
| Net (loss) gain | 0.3 | (0.2) |
| Net transfer into (out of) Level 3 | (7.2) | 0.7 |
| Foreign currency | 1.0 | (0.2) |
| Fair value at end of year | $ 6.2 | $ 12.6 |
Retirement Benefit Plans - Accumulated Benefit Obligations (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Pension Plan | ||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | ||
| Accumulated benefit obligation | $ 11.9 | $ 10.9 |
| Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation | 4.8 | 4.9 |
| Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation | 4.6 | 4.6 |
| Supplemental Employee Retirement Plan | ||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | ||
| Accumulated benefit obligation | $ 7.2 | $ 6.3 |
Retirement Benefit Plans - Assumed Healthcare Trend Rates (Details) - Postretirement Medical Benefits |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Defined Benefit Plan, Plan Assets, Category [Line Items] | ||
| Ultimate trend rate | 4.00% | 4.00% |
| Year that trend reaches ultimate rate | 2050 | 2047 |
| Health care cost trend rate assumed next year | ||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | ||
| Healthcare cost trend rate assumption | 7.65% | 8.40% |
Retirement Benefit Plans - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Postretirement Medical Benefits | |||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |||
| Net actuarial loss | $ 1.1 | $ 0.1 | $ (0.7) |
| Foreign exchange | 0.0 | 0.0 | 0.0 |
| Amortization of net actuarial (loss) gain | 0.3 | 0.3 | 0.2 |
| Amounts recorded in other comprehensive income | 1.4 | 0.4 | (0.5) |
| UNITED STATES | Supplemental Employee Retirement Plan | |||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |||
| Net actuarial loss | 0.1 | 0.1 | 0.1 |
| Foreign exchange | 0.0 | 0.0 | 0.0 |
| Amortization of net actuarial (loss) gain | (0.1) | (0.1) | (0.1) |
| Amounts recorded in other comprehensive income | 0.0 | 0.0 | 0.0 |
| Non-U.S. Plan | Pension Plan | |||
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |||
| Net actuarial loss | 0.8 | 0.8 | (0.9) |
| Foreign exchange | (0.2) | 0.1 | 0.0 |
| Amortization of net actuarial (loss) gain | 0.1 | 0.1 | 0.1 |
| Amounts recorded in other comprehensive income | $ 0.7 | $ 1.0 | $ (0.8) |
Retirement Benefit Plans - Benefit Payments Expected to be Paid (Details) $ in Millions |
Dec. 31, 2025
USD ($)
|
|---|---|
| Postretirement Medical Benefits | |
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |
| 2026 | $ 0.6 |
| 2027 | 0.6 |
| 2028 | 0.6 |
| 2029 | 0.6 |
| 2030 | 0.5 |
| 2031 to 2035 | 2.0 |
| Total | 4.9 |
| UNITED STATES | Supplemental Employee Retirement Plan | |
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |
| 2026 | 0.1 |
| 2027 | 0.1 |
| 2028 | 0.1 |
| 2029 | 0.1 |
| 2030 | 0.1 |
| 2031 to 2035 | 0.3 |
| Total | 0.8 |
| Non-U.S. Plan | Pension Plan | |
| Defined Benefit Plan, Plan Assets, Category [Line Items] | |
| 2026 | 0.8 |
| 2027 | 0.6 |
| 2028 | 0.8 |
| 2029 | 0.7 |
| 2030 | 0.9 |
| 2031 to 2035 | 4.1 |
| Total | $ 7.9 |
Shareholders' Equity - Narrative (Details) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Feb. 11, 2025 |
|
| Share Repurchase Program [Line Items] | ||||
| Common stock, shares authorized (in shares) | 60,000,000 | 60,000,000 | ||
| Common stock, par value (in dollars per share) | $ 0.375 | $ 0.375 | ||
| Repurchases of common stock | $ 88,500,000 | $ 19,600,000 | $ 21,700,000 | |
| 2016 Share Repurchase Program | ||||
| Share Repurchase Program [Line Items] | ||||
| Number of shares authorized to be repurchased (in shares) | 3,000,000 | |||
| Repurchases of common stock | $ 87,700,000 | $ 19,600,000 | ||
| Repurchases of common stock (in shares) | 1,108,998 | 198,352 | ||
| Average cost per share (in dollars per share) | $ 79.03 | |||
| Remaining authorized repurchase amount (in shares) | $ 1,514,063 | |||
| 2025 Share Repurchase Program | ||||
| Share Repurchase Program [Line Items] | ||||
| Number of shares authorized to be repurchased (in shares) | 2,000,000 | |||
Leases - Narrative (Details) $ in Millions |
Dec. 31, 2025
USD ($)
|
|---|---|
| Leases [Abstract] | |
| Aggregate residual value at lease expiration for vehicle leases | $ 25.5 |
Leases - Lease Cost (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Leases [Abstract] | |||
| Operating lease cost | $ 31.7 | $ 30.1 | $ 28.9 |
| Finance lease cost | 0.5 | 0.2 | 0.1 |
| Total lease cost | 32.2 | 30.3 | $ 29.0 |
| Short-term lease cost | 4.3 | 6.2 | |
| Variable lease cost | $ 3.0 | $ 2.4 | |
Leases - Maturity of Lease Liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Operating Leases | ||
| 2026 | $ 24.3 | |
| 2027 | 19.1 | |
| 2028 | 11.2 | |
| 2029 | 4.4 | |
| 2030 | 1.6 | |
| Thereafter | 2.1 | |
| Total lease payments | 62.7 | |
| Less: Interest | (5.5) | |
| Present value of lease liabilities | 57.2 | |
| Finance Leases | ||
| 2026 | 0.4 | |
| 2027 | 0.4 | |
| 2028 | 0.3 | |
| 2029 | 0.1 | |
| 2030 | 0.0 | |
| Thereafter | 0.0 | |
| Total lease payments | 1.2 | |
| Less: Interest | (0.1) | |
| Present value of lease liabilities | 1.1 | $ 1.2 |
| Total | ||
| 2026 | 24.7 | |
| 2027 | 19.5 | |
| 2028 | 11.5 | |
| 2029 | 4.5 | |
| 2030 | 1.6 | |
| Thereafter | 2.1 | |
| Total lease payments | 63.9 | |
| Less: Interest | (5.6) | |
| Total lease liabilities | $ 58.3 | $ 56.0 |
Leases - Lease Term and Discount Rate (Details) |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Weighted-average remaining lease term (years): | ||
| Operating leases | 3 years 2 months 12 days | 3 years 6 months |
| Finance leases | 3 years 2 months 12 days | 4 years |
| Weighted-average discount rate: | ||
| Operating leases | 6.10% | 6.10% |
| Finance leases | 5.60% | 5.20% |
Leases - Other Information (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Cash paid for amounts included in the measurement of lease liabilities: | ||
| Operating cash flows from operating leases | $ 24.5 | $ 21.3 |
| Operating cash flows from finance leases | 0.1 | 0.0 |
| Financing cash flows from finance leases | 0.4 | 0.2 |
| Lease assets obtained in exchange for new finance lease liabilities | 0.8 | 1.0 |
| Lease assets obtained in exchange for new operating lease liabilities | $ 18.8 | $ 34.2 |
Commitments and Contingencies (Details) - Oxygenator Water Techs vs. Tennant Company - Judicial Ruling - USD ($) $ in Millions |
Sep. 17, 2025 |
Nov. 25, 2024 |
Dec. 31, 2025 |
|---|---|---|---|
| Loss Contingencies [Line Items] | |||
| Litigation Settlement, Amount Awarded to Other Party, Enhanced Damages Percent | 30.00% | ||
| Litigation settlement, amount awarded to other party | $ 20.2 | $ 9.8 | |
| Litigation settlement, prejudgment interest awarded to other party | 4.7 | ||
| Loss contingency accrual | $ 14.5 | $ 6.0 | |
| Compensatory Damages | |||
| Loss Contingencies [Line Items] | |||
| Litigation settlement, amount awarded to other party | 9.8 | ||
| Enhanced Damages | |||
| Loss Contingencies [Line Items] | |||
| Litigation settlement, amount awarded to other party | 2.9 | ||
| Prejudgment Interest | |||
| Loss Contingencies [Line Items] | |||
| Litigation settlement, amount awarded to other party | $ 7.4 |
Income Taxes - Income Before Income Taxes (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Income Tax Disclosure [Abstract] | |||
| U.S. operations | $ 37.3 | $ 92.3 | $ 94.2 |
| Foreign operations | 20.6 | 12.5 | 29.6 |
| Income before income taxes | $ 57.9 | $ 104.8 | $ 123.8 |
Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Current: | |||
| Federal | $ 1.6 | $ 19.1 | $ 28.7 |
| Foreign | 7.5 | 7.9 | 8.5 |
| State | 1.1 | 3.6 | 4.0 |
| Total current | 10.2 | 30.6 | 41.2 |
| Deferred: | |||
| Federal | 5.0 | (1.8) | (8.7) |
| Foreign | (2.0) | (7.7) | (17.3) |
| State | 0.9 | 0.0 | (0.9) |
| Total deferred | 3.9 | (9.5) | (26.9) |
| Total: | |||
| Federal | 6.6 | 17.3 | 20.0 |
| Foreign | 5.5 | 0.2 | (8.8) |
| State | 2.0 | 3.6 | 3.1 |
| Total income tax expense | $ 14.1 | $ 21.1 | $ 14.3 |
Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Deferred tax assets: | ||
| Inventory | $ 3.1 | $ 2.2 |
| Compensation and employee benefits | 10.1 | 12.3 |
| Warranty reserves | 2.0 | 2.2 |
| Allowance for doubtful accounts and deferred revenue | 5.4 | 2.8 |
| Operating lease liabilities | 12.4 | 11.0 |
| Tax loss carryforwards | 14.4 | 7.7 |
| Tax credit carryforwards | 6.5 | 3.6 |
| Capitalized research and development costs | 2.9 | 19.0 |
| Goodwill and intangible assets | 10.1 | 7.0 |
| Other | 6.8 | 2.5 |
| Gross deferred tax assets | 73.7 | 70.3 |
| Less: valuation allowance | (3.9) | (3.3) |
| Total net deferred tax assets | 69.8 | 67.0 |
| Deferred tax liabilities: | ||
| Operating lease assets | 13.2 | 11.3 |
| Fixed assets | 7.2 | 9.2 |
| Capitalized implementation costs | 6.6 | 5.0 |
| Total deferred tax liabilities | 27.0 | 25.5 |
| Net deferred tax assets | $ 42.8 | $ 41.5 |
Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Unrecognized Tax Benefits [Roll Forward] | ||
| Beginning balance | $ 5.9 | $ 4.1 |
| Increases as a result of tax positions taken during a prior period | 0.4 | 0.0 |
| Increases as a result of tax positions taken during the current year | 0.5 | 0.9 |
| Increases relating to prior period tax positions of acquired entities | 0.0 | 1.4 |
| Decreases as a result of a lapse of the applicable statute of limitations | (1.0) | (0.5) |
| Increases as a result of foreign currency fluctuations | 0.1 | 0.0 |
| Ending balance | $ 5.9 | $ 5.9 |
Income Taxes - Schedule of Income Taxes Paid (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
USD ($)
| |
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |
| U.S. federal | $ 2.5 |
| U.S. state and local | 2.0 |
| Total U.S. | 4.5 |
| Total foreign | 8.9 |
| Total income taxes paid | 13.4 |
| BRAZIL | |
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |
| Total foreign | 0.9 |
| CANADA | |
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |
| Total foreign | 0.7 |
| NETHERLANDS | |
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |
| Total foreign | 0.7 |
| FRANCE | |
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |
| Total foreign | 0.7 |
| Foreign Tax Jurisdiction, Other | |
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |
| Total foreign | 3.7 |
| GERMANY | |
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |
| Total foreign | $ 2.2 |
Share-Based Compensation - Valuation Assumptions (Details) - Option |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||
| Expected volatility | 35.00% | |
| Weighted-average expected volatility | 35.00% | |
| Expected dividend yield | 1.60% | |
| Expected term, in years | 5 years | |
| Risk free interest rate | 4.20% | |
| Weighted-average expected dividend yield | ||
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||
| Expected dividend yield | 1.60% | |
Income Attributable to Tennant Company Per Share - Computations of Basic and Diluted Earnings (Loss) Attributable to Tennant Company Per Share (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Numerator: | |||
| Net income | $ 43.8 | $ 83.7 | $ 109.5 |
| Denominator: | |||
| Basic - weighted average shares outstanding (in shares) | 18,366,216 | 18,786,871 | 18,509,523 |
| Effect of dilutive securities | 213,491 | 309,267 | 274,110 |
| Diluted - weighted average shares outstanding (in shares) | 18,579,707 | 19,096,138 | 18,783,633 |
| Basic earnings per share (in dollars per share) | $ 2.38 | $ 4.46 | $ 5.92 |
| Diluted earnings per share (in dollars per share) | $ 2.36 | $ 4.38 | $ 5.83 |
Income Attributable to Tennant Company Per Share - Narrative (Details) - shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Earnings Per Share [Abstract] | |||
| Antidilutive securities (in shares) | 150,421 | 97,463 | 249,690 |
Segment Reporting - Narrative (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
segment
| |
| Segment Reporting [Abstract] | |
| Number of operating segments | 4 |
| Number of reportable segments | 1 |