RECEIVED SETTLEMENTS AND COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) Claim	Dec. 31, 2017 USD ($) Claim	Dec. 31, 2016 USD ($)
Received settlements [Abstract]
Settlement amount \| $	$ 0	$ 0	$ 5,328
Commitments and Contingencies [Abstract]
Number of claims filed \| Claim	0	0

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

Name:	us-gaap_GainLossRelatedToLitigationSettlement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration