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PROPERTY, PLANT AND EQUIPMENT, NET (Tables)
 12 Months Ended
Dec. 31, 2018
Property, Plant and Equipment [Abstract]  
Summary of property, plant and equipment
Depreciation is computed using the straight-line method over the following estimated useful lives:
Process units and equipment
5-25 years
Pipeline and equipment
5-25 years
Buildings
25 years
Computers, furniture and fixtures
3-7 years
Leasehold improvements
20 years
Railcars
50 years
Property, plant and equipment, net consisted of the following:
 
 
December 31,
2018
 
December 31,
2017
Land
 
$
351,536

 
$
352,812

Process units, pipelines and equipment
 
3,741,133

 
3,414,372

Buildings and leasehold improvements
 
58,211

 
51,915

Computers, furniture and fixtures
 
126,929

 
110,968

Construction in progress
 
328,111

 
172,270

 
 
4,605,920

 
4,102,337

Less—Accumulated depreciation
 
(785,028
)
 
(623,124
)
Total property, plant and equipment, net
 
$
3,820,892

 
$
3,479,213