Revenue - Schedule of Disaggregation of Revenue by Revenue Source (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of revenue
Revenues by Segment	$ 745,701	$ 817,744	$ 2,275,579	$ 2,461,554
Inter-segment eliminations
Disaggregation of revenue
Revenues by Segment	(3,248)	(4,402)	(10,582)	(13,185)
Truckload Transportation Services | Operating Segments
Disaggregation of revenue
Revenues by Segment	522,803	572,195	1,610,998	1,730,717
Werner Logistics | Operating Segments
Disaggregation of revenue
Revenues by Segment	206,774	230,252	618,168	683,470
Transportation services
Disaggregation of revenue
Revenues by Segment	726,329	798,045	2,218,584	2,401,002
Other revenues
Disaggregation of revenue
Revenues by Segment	$ 19,372	$ 19,699	$ 56,995	$ 60,552