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IMPAIRMENTS AND DISCONTINUED OPERATIONS Narrative (Details) - USD ($) $ in Thousands		3 Months Ended					9 Months Ended
	Jul. 29, 2019	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill impairment loss		$ 0		$ 0			$ 225,000	$ 0
Goodwill		$ 780,853					$ 780,853		$ 1,005,853
Income (Loss) from Discontinued Operations, Net of Tax [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset impairment losses					$ 8,400	$ 297,300
The St. Eustatius Disposition [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale	$ 230,000
Crude Oil Pipelines [Member] \| Pipeline Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill impairment loss			$ 225,000
St. Eustatius Bunkers [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill					$ 0
St. Eustatius Bunkers [Member] \| Income (Loss) from Discontinued Operations, Net of Tax [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill impairment loss						$ 31,100