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PROPERTY, PLANT AND EQUIPMENT, NET (Tables)
12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, plant and equipment, net is summarized as follows:
December 31,
20212020
Land, site improvements and rights$149,914 $52,047 
Construction in progress154,859 425,261 
Bridges and Tunnels174,889 — 
Buildings and improvements19,164 4,491 
Terminal machinery and equipment962,552 557,788 
Track and track related assets100,014 2,349 
Railroad equipment8,331 5,560 
Railcars and locomotives111,574 — 
Computer hardware and software5,335 5,101 
Furniture and fixtures3,119 2,449 
Other10,548 5,870 
1,700,299 1,060,916 
Less: Accumulated depreciation(144,442)(96,553)
Property, plant and equipment, net$1,555,857 $964,363 
Depreciation
Depreciation expense for property, plant and equipment is summarized as follows:
Year Ended December 31,
202120202019
Depreciation expense for property, plant and equipment:
Continuing operations$47,915 $26,581 $28,466 
Discontinued operations — 2,187 
Total$47,915 $26,581 $30,653