INCOME TAXES - Narrative (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Approximate net refund in future period		$ 6,200,000
Unrecognized tax benefits significant reduction in the next 12 months	$ 0

The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (3)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

Name:	us-gaap_IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant