FINANCIAL DERIVATIVE INSTRUMENTS - Narrative (Details) $ in Millions	12 Months Ended
Dec. 31, 2018 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, notional amount	$ 33.8
Derivative instruments, loss reclassified from accumulated OCI into income	$ 1.0

The effective portion of loss reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

Name:	us-gaap_DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration