UNITHOLDERS' CAPITAL - Summary of Distributions Made (Details) - $ / shares													12 Months Ended
Nov. 12, 2019	Sep. 30, 2019	May 10, 2019	Feb. 22, 2019	Nov. 13, 2018	Aug. 10, 2018	May 11, 2018	Feb. 23, 2018	Nov. 10, 2017	Aug. 11, 2017	May 12, 2017	Feb. 24, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Class A Units
Class of Stock [Line Items]
Distribution Per Unit (in dollars per unit)	$ 0.03	$ 3.13	$ 1.05	$ 0.75	$ 0.70	$ 0.55	$ 0.96	$ 0.76	$ 0.56	$ 1.31	$ 0.71	$ 0.63	$ 4.96	$ 2.97	$ 3.21

Per unit of ownership amount of cash distributions paid to unit-holder of a limited partnership (LP).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Period Type:	duration