OPERATING SEGMENT DATA - Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
OPERATING INCOME (LOSS) FROM CONTINUING OPERATIONS
Operating income		$ 244,434	$ 172,619	$ 394,526
OTHER INCOME (COSTS) FROM CONTINUING OPERATIONS
Interest and dividend income		11,618	14,728	3,873
Interest and other related financing costs		(8,980)	(9,094)	(7,726)
Other, net		(28,358)	8,662	(2,370)
TOTAL OTHER INCOME (COSTS)		(25,720)	14,296	(6,223)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES		218,714	186,915	388,303
Change in fair value of equity investment, decrease		(28,739)
Change in fair value included in other income, increase	$ 3,700		3,739
Asset impairment charges		1,700	30,162
Operating Segments | Asset-Based
OPERATING INCOME (LOSS) FROM CONTINUING OPERATIONS
Operating income		242,603	253,152	381,133
OTHER INCOME (COSTS) FROM CONTINUING OPERATIONS
Asset impairment charges			700
Operating Segments | Asset-Light
OPERATING INCOME (LOSS) FROM CONTINUING OPERATIONS
Operating income		58,444	(12,271)	52,725
OTHER INCOME (COSTS) FROM CONTINUING OPERATIONS
Asset impairment charges		1,700	14,407
Other and eliminations
OPERATING INCOME (LOSS) FROM CONTINUING OPERATIONS
Operating income		$ (56,613)	(68,262)	$ (39,332)
OTHER INCOME (COSTS) FROM CONTINUING OPERATIONS
Asset impairment charges			$ 15,100