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Auto Liability and Workers’ Compensation Insurance Accruals
 12 Months Ended
Dec. 31, 2025
Accident and Workers' Compensation Insurance Liabilities [Abstract]  
Auto Liability and Workers’ Compensation Insurance Accruals Auto Liability and Workers’ Compensation Insurance Accruals
We act as a self-insurer for auto liability, defined as including property damage, personal injury, or cargo based on defined insurance retention. In April 2023, we renewed our primary auto liability insurance with a three year program. Under the April 2023 renewal, our auto liability retention limit across all operating entities was increased to $3.0 million for any individual claim based on the insured party, accident date, and circumstances of the loss event subject to a $3.5 million corridor for any one accident or combination of accidents that exceed $3.0 million. In April 2025, the $5.0 million in excess of $10.0 million layer and the $5.0 million in excess of $15.0 million layer became part of a three year structured program, each with a $5.0 million per occurrence and a $10.0 million aggregate limit per policy year. For the duration of the three year structured program, the $5.0 million in excess of $10.0 million layer has a $15.0 million aggregate limit and the $5.0 million in excess of $15.0 million layer has a $10.0 million aggregate limit. Also, in April 2025, an additional corridor was added, where we retain liability of $5.0 million for the first accident or series of accidents that exceed $20.0 million. We maintain limited excess liability coverage, subject to the foregoing limits and corridors, and retain any liability in excess of the coverage. Our premiums for certain layers are subject to upward or downward adjustments based on claims experience. The elevated retention limit and the premium adjustment feature could lead to increased volatility in our insurance and claims expense, depending on the frequency and magnitude of claims, which is exacerbated given significantly increased judgments and settlements of over-the-road accident claims.

We act as a self-insurer for workers’ compensation based on defined insurance retention of $1.0 million. Liabilities in excess of insurance retention limits are covered by insurance. In addition, we have provided insurance carriers with letters of credit totaling $12.7 million in connection with our liability and workers’ compensation insurance arrangements and self-insurance requirements of the Federal Motor Carrier Safety Administration. There were no outstanding balances due on any letters of credit at December 31, 2025 or 2024.

Accident and workers’ compensation accruals include the estimated settlements, settlement expenses and an estimate for claims incurred but not yet reported for property damage, personal injury and public liability losses from vehicle accidents and cargo
losses as well as workers’ compensation claims for amounts not covered by insurance. Accident and workers’ compensation accruals are based upon individual case estimates, including reserve development, and estimates of incurred-but-not-reported losses based upon our own historical experience and industry claim trends. Since the reported liability is an estimate, the ultimate liability may be more or less than reported. In addition to internally developed reserves and estimates, we utilize an actuarial specialist to provide an independent annual assessment of the internally developed accident and workers' compensation accruals. If adjustments to previously established accruals are required, such amounts are included in operating expenses in the current period. These accruals are recorded on an undiscounted basis. Estimated claim payments to be made within one year of the balance sheet date have been classified as insurance accruals within current liabilities as of December 31, 2025 and 2024.