OPERATING SEGMENT DATA - Revenue from Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
REVENUES
Revenues	$ 967,077	$ 1,036,419
Asset-Based
REVENUES
Revenues	611,335	640,576
Asset-Light
REVENUES
Revenues	354,568	394,825
Corporate and other
REVENUES
Revenues	1,174	1,018
Operating Segments | Asset-Based
REVENUES
Revenues	646,294	671,467
Operating Segments | Asset-Light
REVENUES
Revenues	356,012	396,363
Intersegment revenues
REVENUES
Revenues	(36,403)	(32,429)
Intersegment revenues | Asset-Based
REVENUES
Revenues	34,959	30,891
Intersegment revenues | Asset-Light
REVENUES
Revenues	1,444	1,538
Other and eliminations
REVENUES
Revenues	$ (35,229)	$ (31,411)