SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Useful lives 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:

(in millions)	December 31, 2019			December 31, 2018
Land	$	244.6		$	249.0
Processing units, pipelines and equipment	3,282.2			2,934.5
Buildings and leasehold improvements	48.0			47.9
Computers, furniture and fixtures	134.9			121.2
Construction in progress	304.0			320.1
	4,013.7			3,672.7
Less - Accumulated depreciation	(845.1		)	(701.5		)
Total property, plant and equipment, net	$	3,168.6		$	2,971.2