Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies We have committed to property and equipment purchases of approximately $82.1 million at September 30, 2025. We are involved in certain claims and pending litigation, including those described herein, arising in the ordinary course of business. The majority of these claims relate to bodily injury, property damage, cargo and workers’ compensation incurred in the transportation of freight, as well as certain class action litigation related to personnel and employment matters. We accrue for the uninsured portion of contingent losses from these and other pending claims when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Based on the knowledge of the facts, management believes the resolution of claims and pending litigation, taking into account existing reserves, will not have a material adverse effect on our consolidated financial statements. Moreover, the results of complex legal proceedings are difficult to predict, and our view of these matters may change in the future as the litigation and related events unfold. On May 17, 2018, in Harris County District Court in Houston, Texas, a jury rendered an adverse verdict against the Company in a lawsuit arising from a December 30, 2014 accident between a Werner tractor-trailer and a passenger vehicle. On July 30, 2018, the court entered a final judgment against Werner for $92.0 million, including pre-judgment interest. The Company pursued an appeal of this verdict, and on May 18, 2023, the Texas Court of Appeals overruled Werner’s appeal and affirmed the trial court’s judgment. The Company filed a Petition for Review with the Texas Supreme Court and, on August 30, 2024 the Texas Supreme Court granted the Company’s Petition for Review. Oral argument of the appeal was held on December 3, 2024. On June 27, 2025, the Texas Supreme Court reversed the verdict and rendered a judgment in the Company’s favor. The plaintiffs filed a Motion for Rehearing and, on September 26, 2025, the Texas Supreme Court denied the Motion, ending the case in favor of Werner. Under the Company’s insurance policies in effect on the date of this accident, the Company’s maximum liability for this accident was $10.0 million (plus pre-judgment and post-judgment interest) with premium-based coverage that exceeded the 2018 jury verdict amount. As a result of the June 27, 2025 decision, the Company reversed a $45.7 million liability (including interest) through insurance and claims expense on the statements of income during the three months ended June 30, 2025. In June 2025, the Company also reversed a $79.2 million receivable from its third-party insurance providers from other non-current assets and a corresponding liability of the same amount from the long-term portion of insurance and claims accruals on the consolidated condensed balance sheets, as the Company was the primary obligor of the 2018 verdict under the terms of the Company’s insurance policies. In October 2025, we reached an agreement with the plaintiffs in the consolidated class action lawsuits entitled Abarca et al. v. Werner that are pending in the United States District Court for the District of Nebraska, to settle these cases for a combined $18.0 million after more than a decade of litigation. The proceeding was instituted on June 4, 2014 in the Superior Court for Alameda County, California and was transferred to the United States District Court for the District of Nebraska on October 20, 2014. The cases, which were brought by a small group of drivers and later certified as a class action with tens of thousands of class members and covered the years from mid-2010 to late 2023, involved claims for failure to provide meal and rest breaks (and such meal and rest break claims were dismissed via summary judgment on June 1, 2021), alleged unpaid wages, unauthorized deductions, and other items. The settlement is subject to court approval. As a result of the agreement, the $18.0 million settlement was recorded as a liability in other current liabilities on the consolidated condensed balance sheet as of September 30, 2025, and as an expense in salaries, wages and benefits on the consolidated statements of income for the three and nine months ended September 30, 2025.