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Basis of Presentation Basis of Presentation (Policies) | 6 Months Ended
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Jun. 30, 2023
Basis of Presentation [Abstract] |
Basis of Presentation [Policy Text Block] | Basis of Presentation and New Accounting PronouncementsHeartland Express, Inc. is a holding company incorporated in Nevada, which directly or indirectly owns all of the stock of the following active legal entities: Heartland Express, Inc. of Iowa, Heartland Express Services, Inc., Heartland Express Maintenance Services, Inc. ("Heartland Express"), and Midwest Holding Group, LLC and Millis Transfer, LLC ("Millis Transfer"), and Smith Transport, Inc., Smith Trucking, Inc., and Franklin Logistics, Inc. ("Smith Transport"), and CFI entities, Transportation Resources, Inc. and Contract Freighters, Inc. (collectively with certain Mexican entities, "CFI"). On May 31, 2022, Heartland Express, Inc. of Iowa acquired Smith Transport, a truckload carrier headquartered in Roaring Spring, Pennsylvania. On August 31, 2022, Heartland Express, Inc. of Iowa acquired CFI's non-dedicated U.S. dry van and temperature-controlled truckload business located in Joplin, Missouri, and certain Mexican entities (collectively "CFI Logistica") with operations located in Mexico. We, together with our subsidiaries, are a short, medium, and long-haul truckload carrier and transportation services provider. We primarily provide nationwide asset-based dry van truckload service for major shippers across the United States, along with cross-border freight and other transportation services offered through third party partnerships in Mexico.The accompanying consolidated financial statements include the parent company, Heartland Express, Inc., and its subsidiaries, all of which are wholly owned. Purchase accounting in relation to the acquisition of Smith Transport was deemed complete during the quarter ended June 30, 2023. All material intercompany items and transactions have been eliminated in consolidation. The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include all of the information and notes to the financial statements required by U.S. GAAP for complete financial statements. In the opinion of management, all normal, recurring adjustments considered necessary for a fair presentation have been included. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes for the year ended December 31, 2022 included in the Annual Report on Form 10-K the Company filed with the Securities and Exchange Commission (the "SEC") on March 1, 2023. Interim results of operations are not necessarily indicative of the results to be expected for the full year or any other interim periods.
Use of Estimates, Policy [Policy Text Block] | Use of EstimatesThe preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Segment Reporting, Policy [Policy Text Block] | Segment InformationWe provide truckload services across the United States (U.S.), Mexico, and parts of Canada. These truckload services are primarily asset-based transportation services in the dry van truckload market, and we also offer truckload temperature-controlled transportation services and Mexico logistics services, which are not significant to our consolidated operations. Our Chief Operating Decision Maker (“CODM”) oversees and manages all of our transportation services, on a combined basis, including previously acquired entities. As a result of the foregoing, we have determined that we have one reportable segment, consistent with the authoritative accounting guidance on disclosures about segments of an enterprise and related information.
Revenue [Policy Text Block] | The Company recognizes revenue over time as control of the promised services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those services. The delivery of the shipment and completion of the performance obligation allows for the collection of payment generally within 30 days after the delivery date of the shipment for the majority of our customers.The Company's operations are consistent with those in the trucking industry where freight is hauled twenty-four hours a day and seven days a week, subject to hours of service rules. The Company’s average length of haul is approximately 500 miles per trip and each individual shipment accepted by the Company is considered a separate contract with the performance obligation being the delivery of the freight. Our average length of haul for each load of freight generally equals less than two days of continuous transit time. The Company estimates revenue for multiple-stop loads based on miles run and estimates revenue for single stop loads based on transit time, as the customer simultaneously receives and consumes the benefit provided. The Company hauls freight and earns revenue on a consistent basis throughout the periods presented.
Cash and Cash Equivalents, Policy [Policy Text Block] | Cash and Cash EquivalentsCash equivalents are short-term, highly liquid investments with insignificant interest rate risk and original maturities of three months or less at acquisition.
Property, Plant and Equipment, Policy [Policy Text Block] | Prepaid Tires, Property, Equipment, and DepreciationProperty and equipment are reported at cost, net of accumulated depreciation. Maintenance and repairs are charged to operations as incurred. New tires are capitalized separately from revenue equipment and are reported separately as “Prepaid tires” in the consolidated balance sheets and amortized over two years. Depreciation for financial statement purposes is computed by the straight-line method for all assets other than new tractors. We recognize depreciation expense on new tractors (excludes assets acquired through an acquisition) using the 125% declining balance method. Revenue equipment acquired through acquisitions is generally revalued to current market values as of the acquisition date. Assets obtained more than a year prior to the acquisition by the acquired company are depreciated on a straight-line basis aligned with the remaining period of expected use, whereas those obtained less than a year prior are depreciated consistent with newly purchased assets. As acquired equipment is replaced, our fleet returns to our base methods of declining balance depreciation for tractors and straight-line depreciation for trailers. New tractors are depreciated to salvage values of $15,000 while new trailers are depreciated to salvage values of $4,000. For equipment acquired through acquisitions the salvage values on used equipment is determined based upon factors including the age of the equipment, estimated market value, and expected period of usage. At June 30, 2023, there was $0.5 million amounts receivable related to equipment sales recorded in other current assets compared to $1.6 million at December 31, 2022.
Earnings Per Share, Policy [Policy Text Block] | Earnings per ShareBasic earnings per share is based upon the weighted average common shares outstanding during each year. Diluted earnings per share is based on the basic weighted earnings per share with additional weighted common shares for common stock equivalents.
Income Tax, Policy [Policy Text Block] | We use the asset and liability method of accounting for income taxes. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amount of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Such amounts are adjusted, as appropriate, to reflect changes in tax rates expected to be in effect when temporary differences reverse. The effect of changes in tax rates on deferred taxes is recognized in the period that the change is enacted. A valuation allowance is recorded to reduce the Company's deferred tax assets to the amount that is more likely than not to be realized.
Income Tax Uncertainties, Policy [Policy Text Block] | We recognize the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. We record interest and penalties related to unrecognized tax benefits in income tax expense.

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