Significant Accounting Policies [Text Block] | 2. Summary of Significant Accounting Policies Basis of Consolidation Our Consolidated Financial Statements include all of our wholly owned subsidiaries. Intercompany balances and transactions have been eliminated in consolidation. J.B. Hunt Transport Services, Inc. is a parent-level holding company with no significant assets or operations. J.B. Hunt Transport, Inc. is a wholly owned subsidiary of J.B. Hunt Transport Services, Inc. and is the primary operating subsidiary. All other subsidiaries of J.B. Hunt Transport Services, Inc. are minor. Use of Estimates The Consolidated Financial Statements contained in this report have been prepared in conformity with accounting principles generally accepted in the United States of America. The preparation of these statements requires us to make estimates and assumptions that directly affect the amounts reported in such statements and accompanying notes. We evaluate these estimates on an ongoing basis utilizing historical experience, consulting with experts and using other methods we consider reasonable in the particular circumstances. Nevertheless, our actual results may differ significantly from our estimates. We believe certain accounting policies and estimates are of more significance in our financial statement preparation process than others. We believe the most critical accounting policies and estimates include the economic useful lives and salvage values of our assets, provisions for uncollectible accounts receivable, estimates of exposures under our insurance and claims policies, and estimates for taxes. To the extent that actual, final outcomes are different from our estimates, or that additional facts and circumstances cause us to revise our estimates, our earnings during that accounting period will be affected. Cash and Cash Equivalents Cash in excess of current operating requirements is invested in short-term, highly liquid investments. We consider all highly liquid investments purchased with original maturities of three months or less to be cash equivalents. Accounts Receivable and Allowance Our trade accounts receivable includes accounts receivable reduced by an allowance for uncollectible accounts and revenue adjustments. Receivables are recorded at amounts billed to customers when loads are delivered or services are performed. The allowance for uncollectible accounts and revenue adjustments is based on historical experience, as well as any known trends or uncertainties related to customer billing and account collectability. The adequacy of our allowance is reviewed quarterly. Balances are charged against the allowance when it is determined the receivable will not be recovered. The allowance for uncollectible accounts and revenue adjustments was $9.9 million and $9.5 million at December 31, 2015 and 2014, respectively. Inventory Our inventories consist primarily of revenue equipment parts, tires, supplies, and fuel and are valued using the lower of average cost or market. Investments in Marketable Equity Securities Our investments consist of marketable equity securities stated at fair value and are designated as either trading securities or available-for-sale securities at the time of purchase based upon the intended holding period. Changes in the fair value of our trading securities are recognized currently in “general and administrative expenses, net of asset dispositions” in our Consolidated Statements of Earnings. Changes in the fair value of our available-for-sale securities are recognized in “accumulated other comprehensive income” on our Consolidated Balance Sheets, unless we determine that an unrealized loss is other-than-temporary. If we determine that an unrealized loss is other-than-temporary, we recognize the loss in earnings. Cost basis is determined using average cost. At December 31, 2015 and 2014, we had no available-for-sale securities. See Note 8, Employee Benefit Plans, for a discussion of our trading securities. Property and Equipment Depreciation of property and equipment is calculated on the straight-line method over the estimated useful lives of 4 to 10 years for tractors, 7 to 20 years for trailing equipment, 10 to 40 years for structures and improvements, and 3 to 10 years for furniture and office equipment. Salvage values are typically 10% to 30% of original cost for tractors and trailing equipment and reflect any agreements with tractor suppliers for residual or trade-in values for certain new equipment. We capitalize tires placed in service on new revenue equipment as a part of the equipment cost. Replacement tires and costs for recapping tires are expensed at the time the tires are placed in service. Gains and losses on the sale or other disposition of equipment are recognized at the time of the disposition and are classified in general and administrative expenses, net of asset dispositions. Revenue Recognition We recognize revenue based on relative transit time in each reporting period and as other services are provided, with expenses recognized as incurred. Accordingly, a portion of the total revenue that will be billed to the customer once a load is delivered is recognized in each reporting period based on the percentage of the freight pickup and delivery service that has been completed at the end of the reporting period. We record revenues on the gross basis at amounts charged to our customers because we are the primary obligor, we are a principal in the transaction, we invoice our customers and retain all credit risks, and we maintain discretion over pricing. Additionally, we are responsible for selection of third-party transportation providers to the extent used to satisfy customer freight requirements. Derivative Instruments We periodically utilize derivative instruments to manage exposure to changes in interest rates. At inception of a derivative contract, we document relationships between derivative instruments and hedged items, as well as our risk-management objective and strategy for undertaking various derivative transactions, and assess hedge effectiveness. If it is determined that a derivative is not highly effective as a hedge, or if a derivative ceases to be a highly effective hedge, we discontinue hedge accounting prospectively. Income Taxes Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. 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. The effect on deferred tax assets and liabilities of a change in tax rates is recognized as income or expense in the period that includes the enactment date. We record valuation allowances for deferred tax assets to the extent we believe these assets are not more likely than not to be realized through the reversal of existing taxable temporary differences, projected future taxable income, or tax-planning strategies. We record a liability for unrecognized tax benefits when the benefits of tax positions taken on a tax return are not more likely than not to be sustained upon audit. Interest and penalties related to uncertain tax positions are classified as interest expense in the Consolidated Financial Statements. Earnings Per Share We compute basic earnings per share by dividing net earnings available to common stockholders by the actual weighted average number of common shares outstanding for the reporting period. Diluted earnings per share reflect the potential dilution that could occur if holders of unvested restricted and performance share units or options exercised or converted their holdings into common stock. Outstanding unvested restricted share units and stock options represent the dilutive effects on weighted average shares. A reconciliation of the number of shares used in computing basic and diluted earnings per share is shown below (in thousands): Years ended December 31, 2015 2014 2013 Weighted average shares outstanding – basic 115,677 117,000 117,449 Effect of common stock equivalents 1,051 1,445 1,955 Weighted average shares outstanding – diluted 116,728 118,445 119,404 Concentrations of Credit Risk Financial instruments, which potentially subject us to concentrations of credit risk, include trade receivables. For the years ended December 31, 2015, 2014, and 2013, our top 10 customers, based on revenue, accounted for approximately 29%, 28%, and 29%, respectively, of our total revenue. Our top 10 customers, based on revenue, accounted for approximately 27% and 29% of our total trade accounts receivable at December 31, 2015 and 2014, respectively. We had no individual customers with revenues greater than 10% of total revenues. Share-based Compensation We have share-based compensation plans covering certain employees, including officers and directors. We account for share-based compensation utilizing the fair value recognition provisions of current accounting standards for share-based payments. We currently utilize restricted share units, performance share units, and nonstatutory stock options. Issuances of our stock upon restricted share unit and performance share unit vesting or share option exercise are made from treasury stock. Our restricted share unit and performance share unit awards may include both graded-vesting and cliff-vesting awards and therefore vest in increments during the requisite service period or at the end of the requisite service period, as appropriate for each type of vesting. We recognize compensation expense on a straight-line basis over the requisite service periods within each award. Claims Accruals We purchase insurance coverage for a portion of expenses related to employee injuries, vehicular collisions, accidents, and cargo damage. We are substantially self-insured for loss of and damage to our owned and leased revenue equipment. Certain insurance arrangements include a level of self-insurance (deductible) coverage applicable to each claim. We have umbrella policies to limit our exposure to catastrophic claim costs. The amounts of self-insurance change from time to time based on measurement dates, policy expiration dates, and claim type. For 2013 through 2015, we were self-insured for $500,000 per occurrence for personal injury and property damage and self-insured for $100,000 per workers’ compensation claim. We have policies in place for 2016 with substantially the same terms as our 2015 policies for personal injury, workers’ compensation, and cargo and property damage. Our claims accrual policy for all self-insured claims is to recognize a liability at the time of the incident based on our analysis of the nature and severity of the claims and analyses provided by third-party claims administrators, as well as legal, economic, and regulatory factors. Our safety and claims personnel work directly with representatives from the insurance companies to continually update the estimated cost of each claim. The ultimate cost of a claim develops over time as additional information regarding the nature, timing, and extent of damages claimed becomes available. Accordingly, we use an actuarial method to develop current claim information to derive an estimate of our ultimate claim liability. This process involves the use of loss-development factors based on our historical claims experience and includes a contractual premium adjustment factor, if applicable. In doing so, the recorded liability considers future claims growth and, if applicable, conversion to fully insured status and provides an allowance for incurred-but-not-reported claims. We do not discount our estimated losses. At December 31, 2015 and 2014, we had an accrual of approximately $95 million and $88 million, respectively, for estimated claims. In addition, we are required to pay certain advanced deposits and monthly premiums. At December 31, 2015 and 2014, we had an aggregate prepaid insurance asset of approximately $87 million and $68 million, respectively, which represented prefunded premiums. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers, which supersedes virtually all existing revenue recognition guidance. The new standard requires an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. This update also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. We have the option of using either a full retrospective or a modified retrospective approach when adopting this new standard. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, which deferred the effective date of ASU 2014-09 one year to interim and annual periods beginning after December 15, 2017. Early adoption is permitted after the original effective date of December 15, 2016. We are currently evaluating the alternative transition methods and the potential effects of the adoption of this update on our financial statements. In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs, which amends the current presentation of debt issuance costs in the financial statements. ASU 2015-03 requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts, instead of as an asset. The amendments are to be applied retrospectively and are effective for interim and annual periods beginning after December 15, 2015, but early adoption is permitted. The adoption of the new guidance is not expected to have a material impact on our financial statements. In January 2016, the FASB issued ASU 2016-01, Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities, which amends certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. ASU 2016-01 requires equity investments, with certain exceptions, to be measured at fair value with changes in fair value recognized in net income; simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; eliminates the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet; requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements; and clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities. The amendments are to be applied by means of a cumulative-effect adjustment to the balance sheet and are effective for interim and annual periods beginning after December 15, 2017. With certain exceptions, early adoption is not permitted. The adoption of the new guidance is not expected to have a material impact on our financial statements. Accounting Pronouncements Adopted in 2015 In November 2015, the FASB issued ASU 2015-17, Income Taxes: Balance Sheet Classification of Deferred Taxes, which amends the current presentation of deferred taxes in the financial statements. ASU 2015-17 requires that deferred tax assets and deferred tax liabilities be presented in the balance sheet as noncurrent, which simplifies the current guidance that requires entities to separately present these items as current and noncurrent in the balance sheet. The amendments can be applied retrospectively or prospectively and are effective for interim and annual periods beginning after December 15, 2016, but early adoption is permitted. We retroactively adopted ASU 2015-17 at December 31, 2015, and have reclassified all prior periods to be consistent with the amendments outlined in the ASU. The impact of the prior period reclassification was an $18.6 million reduction of current assets and working capital at December 31, 2014. |