OPERATING SEGMENT DATA - Revenue from Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
REVENUES FROM CONTINUING OPERATIONS
Revenues	$ 1,106,094	$ 1,268,091
Asset Based
REVENUES FROM CONTINUING OPERATIONS
Revenues	669,220	675,518
Asset-Light
REVENUES FROM CONTINUING OPERATIONS
Revenues	436,033	591,722
Corporate and Other
REVENUES FROM CONTINUING OPERATIONS
Revenues	841	851
Operating Segments | Asset Based
REVENUES FROM CONTINUING OPERATIONS
Revenues	697,817	705,311
Operating Segments | Asset-Light
REVENUES FROM CONTINUING OPERATIONS
Revenues	438,092	595,284
Intersegment revenues
REVENUES FROM CONTINUING OPERATIONS
Revenues	(30,656)	(33,355)
Intersegment revenues | Asset Based
REVENUES FROM CONTINUING OPERATIONS
Revenues	28,597	29,793
Intersegment revenues | Asset-Light
REVENUES FROM CONTINUING OPERATIONS
Revenues	2,059	3,562
Other and eliminations
REVENUES FROM CONTINUING OPERATIONS
Revenues	$ (29,815)	$ (32,504)