REVENUE RECOGNITION STANDARD (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Dec. 31, 2018
Revenue Recognition [Abstract]
Revenues from contracts with customers	$ 67,900
Loyalty program reserve	$ 0	$ 621
ASU 2014-09 [Member]
Revenue Recognition [Abstract]
Cumulative effect of new accounting pronouncement		(1,015)
Accumulated Deficit [Member] \| ASU 2014-09 [Member]
Revenue Recognition [Abstract]
Cumulative effect of new accounting pronouncement		$ (1,015)

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

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