EQUITY INVESTMENTS - Schedule of Equity Method Investment Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 31, 2017
Schedule of Equity Method Investments [Line Items]
Total equity investments	$ 1,111,793,000	$ 1,494,412,000
Total (loss) earnings from equity investments	(274,123,000)	36,005,000	$ 11,536,000
Non-cash loss on write-down of investment in VTTI B.V. (2)	(300,300,000)	0	0
Domestic Pipelines & Terminals
Schedule of Equity Method Investments [Line Items]
Total equity investments	$ 1,111,793,000	1,494,412,000
VTTI B.V.
Schedule of Equity Method Investments [Line Items]
Ownership	50.00%			50.00%
Total (loss) earnings from equity investments	$ 286,633,000	(22,910,000)	0
VTTI B.V. | Global Marine Terminals
Schedule of Equity Method Investments [Line Items]
Ownership	50.00%
Total equity investments	$ 975,000,000	1,399,825,000
Total (loss) earnings from equity investments	13,651,000	22,910,000	0
Non-cash loss on write-down of investment in VTTI B.V. (2)	$ (300,280,000)	0	0
West Shore Pipe Line Company | Domestic Pipelines & Terminals
Schedule of Equity Method Investments [Line Items]
Ownership	34.60%
Total equity investments	$ 70,727,000	70,035,000
Total (loss) earnings from equity investments	$ 10,322,000	9,451,000	7,647,000
Muskegon Pipeline LLC | Domestic Pipelines & Terminals
Schedule of Equity Method Investments [Line Items]
Ownership	40.00%
Total equity investments	$ 13,491,000	13,335,000
Total (loss) earnings from equity investments	$ 557,000	1,778,000	2,002,000
Transport4, LLC | Domestic Pipelines & Terminals
Schedule of Equity Method Investments [Line Items]
Ownership	25.00%
Total equity investments	$ 553,000	699,000
Total (loss) earnings from equity investments	$ 817,000	850,000	765,000
South Portland Terminal LLC | Domestic Pipelines & Terminals
Schedule of Equity Method Investments [Line Items]
Ownership	50.00%
Total equity investments	$ 12,055,000	10,518,000
Total (loss) earnings from equity investments	$ 1,536,000	1,016,000	1,122,000
South Texas Gateway Terminal LLC | Global Marine Terminals
Schedule of Equity Method Investments [Line Items]
Ownership	50.00%
Total equity investments	$ 39,967,000	0
Total (loss) earnings from equity investments	$ (726,000)	$ 0	$ 0