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Acquisition of Millis Transfer (Notes) | 12 Months Ended
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Dec. 31, 2021
Business Combinations [Abstract] |
Business Combination Disclosure [Text Block] | Acquisition of Millis Transfer On August 26, 2019, Heartland Express, Inc. of Iowa (the “Buyer”) and Heartland Express, Inc., as guarantor, entered into an Acquisition and Merger Agreement with Millis Transfer. Millis Transfer is a truckload carrier headquartered in Black River Falls, Wisconsin, providing asset-based dry van truckload transportation services, including local, regional, and dedicated services. Pursuant to the Acquisition and Merger Agreement of the Millis Transfer acquisition, the Buyer acquired all of Millis Transfer’s outstanding equity (the “Transaction”). The Buyer paid $156.0 million of total consideration, including cash (net of working capital adjustment), restricted shares of the Company's common stock, and assumed indebtedness of Millis Transfer. With the Millis Transfer acquisition, total cash paid, net of working capital adjustment, and common stock issued of $62.7 million was funded out of the Company’s available cash and restricted shares of the Company's common stock issued from treasury stock. The transaction included the assumption of $93.3 million of Millis Transfer's indebtedness, of which no debt was outstanding at December 31, 2019. The Acquisition and Merger Agreement contains customary representations, warranties, covenants, escrow, and indemnification provisions. The following unaudited pro forma financial information for the year ended December 31, 2019, assumes that the acquisition of Millis occurred as of January 1, 2019. Pro forma adjustments reflected in the financial information below relate to accounting policy changes, such as changes in depreciation expense of revenue equipment, amortization of intangible assets, and accounting for certain operations and maintenance costs, along with other adjustments for terminal rent expense to align Millis results with those of the Company and income tax effects for the periods presented. The net effect of these pro forma adjustments increased net income by $3.0 million for the period ended December 31, 2019.
| Year ended |
| December 31, 2019 |
| (in thousands)
Operating revenue | $694,672 |
Net income | $75,951 |
The Millis pro forma amounts do not purport to be indicative of the results that would have actually been obtained if the acquisition had occurred at the beginning of the periods presented or that may be obtained in the future. The results of the acquired businesses have been included in the consolidated financial statements since the date of acquisition. Millis represented 8.8% of operating revenue for the twelve months ended December 31, 2019. Millis acquisition related expenses of $0.5 million are included in the consolidated statement of comprehensive income within the other operating expenses line item for the twelve months ended December 31, 2019.

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- Definition The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -URI http://asc.fasb.org/topic&trid=2303972 + Details
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