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SUBSEQUENT EVENTS (Details)					3 Months Ended
	May 04, 2021 USD ($) $ / shares shares	Apr. 08, 2021 USD ($)	Jun. 05, 2020	Jun. 04, 2020	Mar. 31, 2021 USD ($) $ / shares	Mar. 31, 2020 $ / shares	Apr. 29, 2021 USD ($)	Apr. 20, 2021 USD ($) t	Dec. 31, 2020 USD ($)
Subsequent Events
Dividends declared per share of common stock | $ / shares					$ 0.02	$ 0.175
Restricted cash, current					$ 40,519,000				$ 35,492,000
Secured Debt | $495 Million Credit Facility
Subsequent Events
Restricted cash, current					$ 40,519,000				$ 35,492,000
Period for which sales proceeds from vessels will remain as restricted cash					360 days
Collateral vessel replacement period			360 days	180 days	360 days
Subsequent Event
Subsequent Events
Dividends declared per share of common stock | $ / shares	$ 0.05
Aggregate amount of dividend	$ 2,100,000
Subsequent Event | Baltic Leopard
Subsequent Events
Sale of assets		$ 8,000,000
Broker commission (as a percent)		2.00%
Subsequent Event | Secured Debt | $495 Million Credit Facility | Baltic Leopard
Subsequent Events
Restricted cash, current		$ 4,087,000
Period for which sales proceeds from vessels will remain as restricted cash		360 days
Collateral vessel replacement period		360 days
Subsequent Event | Agreement to Purchase Ultramax Drybulk Vessels
Subsequent Events
Capacity of vessels | t								64,000
Aggregate purchase price for vessels								$ 20,200,000
Escrow deposit							$ 4,040,000
Subsequent Event | Restricted Stock Units
Subsequent Events
Granted (in shares) | shares	18,428
Vesting percentage of awards	33.33%
Vesting period of awards	3 years

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