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REDEEMABLE NON-CONTROLLING INTERESTS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2018
Changes in Carrying Amount of Redeemable Non-Controlling Interests [Roll Forward]
Beginning balance	$ 102,572
Ending balance	108,085
Carrying Amount (Fair Value) of Redeemable Non-Controlling Interest [Abstract]
Fair value	108,085	$ 108,085
Redeemable Non-Controlling Interest [Member]
Changes in Carrying Amount of Redeemable Non-Controlling Interests [Roll Forward]
Beginning balance	102,572
Operating results allocated to redeemable non-controlling interest partners	1,736
Distributions to redeemable non-controlling interest partners	(1,359)
Changes in the fair value of redeemable non-controlling interest	5,081
Other	55
Ending balance	108,085
Carrying Amount (Fair Value) of Redeemable Non-Controlling Interest [Abstract]
Contractual time period has lapsed but holder's employment has not been terminated		34,127
Contractual time period has not lapsed and holder's employment has not been terminated		73,958
Fair value	$ 102,572	$ 108,085

X

- Definition

Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.19)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Amount after tax of income (loss) attributable to other redeemable noncontrolling equity holder.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.19)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Amount of increase in noncontrolling interest from sale of a portion of the parent's controlling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (12)(c)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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Refers to amount of contractual time period had not lapsed and holder's employment had not been terminated as of balance sheet date.

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Refers to amount of contractual time period had lapsed but holder's employment had not been terminated as of balance sheet date.

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The distributions during the period for redemption of mandatorily redeemable noncontrolling interests.

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