Goodwill and Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Increase (Decrease) in Goodwill [Roll Forward]
Beginning balance	$ 132,717
Purchase accounting adjustments	(3,613)
Ending balance	129,104
TTS
Increase (Decrease) in Goodwill [Roll Forward]
Beginning balance	53,897
Purchase accounting adjustments	(7,841)
Ending balance	46,056
Werner Logistics
Increase (Decrease) in Goodwill [Roll Forward]
Beginning balance	78,820
Purchase accounting adjustments	4,228
Ending balance	$ 83,048