OPERATING SEGMENT DATA - Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
REVENUES
Revenues	$ 1,022,256	$ 1,077,831	$ 1,989,333	$ 2,114,250
Asset-Based
REVENUES
Revenues	680,936	682,558	1,292,271	1,323,134
Asset-Light
REVENUES
Revenues	340,098	394,377	694,666	789,202
Operating Segments \| Asset-Based
REVENUES
Revenues	713,312	712,725	1,359,606	1,384,192
Operating Segments \| Asset-Light
REVENUES
Revenues	341,922	395,817	697,934	792,180
Other and eliminations
REVENUES
Revenues	$ (32,978)	$ (30,711)	$ (68,207)	$ (62,122)

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details