Introduction and Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2024 Vehicle Segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of operational tractors in fleet	23,071
Number of company tractors	20,913
Number of independent contractor tractors	2,158
Number of trailers	93,495
Number of LTL tractors	3,393
Number of LTL trailers	8,796
Number of intermodal tractors	611
Number of intermodal containers	12,581
Number of reportable segments | Segment	4