Goodwill (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Goodwill:
Goodwill	$ 59,221	$ 59,221
Truckload Segment | U.S. Xpress
Goodwill:
Goodwill	52,800	52,800
Truckload Segment | Total Transportation of Mississippi
Goodwill:
Goodwill	4,900	4,900
Brokerage Segment
Goodwill:
Goodwill	$ 1,500	$ 1,500