GENERAL INFORMATION (Details)	6 Months Ended
Jun. 30, 2020 segment item t
Segment reporting
Number of reportable segments \| segment	1
Drybulk Vessels
Segment reporting
Number of vessels in fleet	53
Capacity of vessels \| t	4,837,000
Average age of vessels	10 years
Capesize Drybulk Carriers
Segment reporting
Number of vessels in fleet	17
Ultramax Drybulk Carriers
Segment reporting
Number of vessels in fleet	6
Supramax Drybulk Carriers
Segment reporting
Number of vessels in fleet	20
Handysize Drybulk Carriers
Segment reporting
Number of vessels in fleet	10

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration