BASIS OF PRESENTATION (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020 property segment
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