PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,619,438	$ 5,059,283
Less: Accumulated depreciation	(483,898)	(477,512)
Property, plant and equipment, net	3,135,540	4,581,771
Land and improvements
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	360,555	513,835
Buildings and improvements
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	39,322	72,997
Bridges and tunnels
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	968,640	969,551
Terminal machinery and equipment
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	1,301,890	1,357,502
Proved oil and gas properties
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	0	304,716
Unproved oil and gas properties
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	0	144,455
Power plant
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	0	850,489
Track and track related assets
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	347,848	335,850
Railroad equipment
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	4,238	9,694
Railcars and locomotives
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	181,955	181,892
Computer hardware and software
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	22,408	22,532
Furniture and fixtures
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	2,246	2,246
Construction in progress
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	360,745	263,495
Vehicles [Member]
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	$ 29,591	$ 30,029