DEFERRED COMPENSATION ARRANGEMENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
DEFERRED COMPENSATION ARRANGEMENTS
Amounts accrued	$ 4,695	$ 3,967

Amount of the liabilities, classified as other, for deferred compensation arrangements payable after one year or the operating cycle, if longer.

No definition available.

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