Commitments and Contingencies	6 Months Ended
Jun. 30, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies We have committed to property and equipment purchases of approximately $116.4 million at June 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, effectively 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. We are also involved in certain class action litigation in which the plaintiffs allege claims for failure to provide meal and rest breaks, unpaid wages, unauthorized deductions and other items. With respect to claims brought by a group of plaintiffs alleging unauthorized deductions, the Federal District Court in Nebraska granted plaintiffs’ motion for summary judgment in March 2025. We cannot reasonably estimate at this time the amount of liability with respect to plaintiffs’ claim of unauthorized deductions and such amount will be determined at trial, which is scheduled to begin on October 14, 2025. The Company intends to appeal the ruling on the parties’ respective motions for summary judgment. We anticipate further legal rulings from the Court at, before, or after trial that may substantially affect the scope of the claims asserted. As a result, we are unable at this time to estimate the amount of the possible liability or range of liability for any of plaintiffs’ claims, if any, that we may incur as a result of these claims. We will continue to vigorously defend against the claims brought by the plaintiffs.

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, effectively 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.

We are also involved in certain class action litigation in which the plaintiffs allege claims for failure to provide meal and rest breaks, unpaid wages, unauthorized deductions and other items. With respect to claims brought by a group of plaintiffs alleging unauthorized deductions, the Federal District Court in Nebraska granted plaintiffs’ motion for summary judgment in March 2025. We cannot reasonably estimate at this time the amount of liability with respect to plaintiffs’ claim of unauthorized deductions and such amount will be determined at trial, which is scheduled to begin on October 14, 2025. The Company intends to appeal the ruling on the parties’ respective motions for summary judgment. We anticipate further legal rulings from the Court at, before, or after trial that may substantially affect the scope of the claims asserted. As a result, we are unable at this time to estimate the amount of the possible liability or range of liability for any of plaintiffs’ claims, if any, that we may incur as a result of these claims. We will continue to vigorously defend against the claims brought by the plaintiffs.