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GOODWILL AND INTANGIBLE ASSETS - Schedule of Goodwill by Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Increase (Decrease) in Goodwill [Roll Forward] |  |
Beginning balance | $ 132,717 | $ 74,618
Purchase accounting adjustments | (3,613) | (214)
Ending balance | 129,104 | 132,717
ReedTMS |  |
Increase (Decrease) in Goodwill [Roll Forward] |  |
Beginning balance | 52,841 |
Goodwill recorded in acquisition |  | 52,841
Purchase accounting adjustments | (3,613) |
Ending balance | 49,228 | 52,841
Baylor |  |
Increase (Decrease) in Goodwill [Roll Forward] |  |
Goodwill recorded in acquisition |  | 5,472
TTS |  |
Increase (Decrease) in Goodwill [Roll Forward] |  |
Beginning balance | 53,897 | 38,084
Purchase accounting adjustments | (7,841) | 0
Ending balance | 46,056 | 53,897
TTS | ReedTMS |  |
Increase (Decrease) in Goodwill [Roll Forward] |  |
Goodwill recorded in acquisition |  | 10,341
TTS | Baylor |  |
Increase (Decrease) in Goodwill [Roll Forward] |  |
Goodwill recorded in acquisition |  | 5,472
Werner Logistics |  |
Increase (Decrease) in Goodwill [Roll Forward] |  |
Beginning balance | 78,820 | 36,534
Purchase accounting adjustments | 4,228 | (214)
Ending balance | $ 83,048 | 78,820
Werner Logistics | ReedTMS |  |
Increase (Decrease) in Goodwill [Roll Forward] |  |
Goodwill recorded in acquisition |  | 42,500
Werner Logistics | Baylor |  |
Increase (Decrease) in Goodwill [Roll Forward] |  |
Goodwill recorded in acquisition |  | $ 0

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