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COMMITMENTS AND CONTINGENCIES
12 Months Ended
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
COMMITMENTS AND CONTINGENCIES COMMITMENTS AND CONTINGENCIES
EMPLOYEE BENEFIT PLANS. We offer a defined contribution plan, which qualifies under section 401(k) of the Internal Revenue Code and covers all eligible U.S. employees. We can also elect to make matching contributions to the plan. Annual discretionary contributions may also be made to the plan. Defined contribution plan expense, including matching contributions, is as follows (in thousands): 
2022$59,259 
202148,714 
202018,827 
We contributed a defined contribution match of six percent in 2022 and 2021. Effective May 22, 2020, we temporarily suspended the employer-matching contribution due to the impacts of the COVID-19 pandemic. The employer-matching contribution was reinstated effective January 1, 2021.
LEASE COMMITMENTS. We maintain operating leases for office space, warehouses, office equipment, trailers, and a small number of intermodal containers. See Note 11, Leases, for further information.
LITIGATION. We are not subject to any pending or threatened litigation other than routine litigation arising in the ordinary course of our business operations, including certain contingent auto liability cases as of December 31, 2022. For some legal proceedings, we have accrued an amount that reflects the aggregate liability deemed probable and estimable, but this amount is not material to our consolidated financial position, results of operations, or cash flows. Because of the preliminary nature of many of these proceedings, the difficulty in ascertaining the applicable facts relating to many of these proceedings, the inconsistent treatment of claims made in many of these proceedings, and the difficulty of predicting the settlement value of many of these proceedings, we are not able to estimate an amount or range of any reasonably possible additional losses. However, based upon our historical experience, the resolution of these proceedings is not expected to have a material effect on our consolidated financial position, results of operations, or cash flows.