SALE OF PARTNERSHIP INTEREST (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) Partnership	Jun. 30, 2018 USD ($)
SALE OF PARTNERSHIP INTEREST [Abstract]
Gain on sale of partnership interest	$ 5,823	$ 0	$ 5,823	$ 0
Sale of non-controlling interest percentage in partnership			50.00%
Number of partnership in which interest sold \| Partnership			1
Cash proceeds from sale of non-controlling interest			$ 11,601	0
Purchase price for additional non controlling interest			$ 2,200	$ 0
Number of partnerships in which interest acquired \| Partnership			3

Represents the purchase by the parent of an additional equity interest in a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent. The purchase of the additional equity interest represented by this element increases the parent's controlling interest in the subsidiary.

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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4M
-URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591554-111686

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- Definition

Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

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- Definition

Amount of gain (loss) on sale of partnership interest.

+ References

No definition available.

+ Details

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- Definition

Refers to number of partnership interest sold by parent.

+ References

No definition available.

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- Definition

Number of partnership in which interest acquired during the period.

+ References

No definition available.

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- References

No definition available.

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- Definition

Refers to noncontrolling percentage sold by an entity during the period.

+ References

No definition available.

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