BASIS OF PRESENTATION (Narrative) (Details)	3 Months Ended
	Mar. 31, 2020 segment property
Property, Plant and Equipment [Line Items]
Number of reportable segments | segment	2
Vessel/Fleet [Member]
Property, Plant and Equipment [Line Items]
Number of vessels in fleet	40
Charter In Vessels [Member]
Property, Plant and Equipment [Line Items]
Number of vessels in fleet	4
Vessels with Interest In [Member]
Property, Plant and Equipment [Line Items]
Number of vessels in fleet	2