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VESSEL ACQUISITIONS AND DISPOSITIONS (Details) $ in Thousands										1 Months Ended	3 Months Ended		12 Months Ended
	Feb. 07, 2024 USD ($)	Dec. 21, 2023 USD ($)	Nov. 14, 2023 USD ($) item	Nov. 02, 2021 USD ($)	Aug. 31, 2021 USD ($)	Aug. 03, 2021	Jul. 06, 2021 USD ($)	Apr. 08, 2021 USD ($)	Dec. 17, 2020 USD ($) item	Nov. 14, 2023 USD ($) item	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($) item	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 10, 2023 USD ($) item	Jul. 02, 2021 USD ($) item	May 18, 2021 USD ($) item	Apr. 20, 2021 USD ($) item
VESSEL ACQUISITIONS
Amortization of Fair Market Value of Time Charters Acquired															$ 4,263
Restricted cash - current														$ 5,643
$450 Million Credit Facility
VESSEL ACQUISITIONS
Proceeds from secured debt										$ 65,000			$ 65,000		350,000
Secured Debt | $450 Million Credit Facility
VESSEL ACQUISITIONS
Proceeds from secured debt					$ 350,000
Collateral vessel replacement period						360 days
Genco Mayflower, Genco Constellation and Genco Madeleine
VESSEL ACQUISITIONS
Number of vessels with below market time charters | item												3
Time charters acquired												$ 4,263
Amortization of Fair Market Value of Time Charters Acquired															4,263
Agreement to Purchase Capesize Vessels | Genco Ranger
VESSEL ACQUISITIONS
Capacity of vessels | item																181,000
Purchase price per vessel																$ 43,100
Agreement to Purchase Capesize Vessels | Genco Reliance
VESSEL ACQUISITIONS
Capacity of vessels | item			181,000							181,000
Purchase price per vessel			$ 43,000							$ 43,000
Agreement To Purchase Ultramax Newbuild Vessels | Genco Mary and Genco Laddey
VESSEL ACQUISITIONS
Number of vessels purchased under option to be acquired per purchase agreement | item																		2
Capacity of vessels | item																		61,000
Purchase price per vessel																		$ 29,170
Remaining purchase price of vessels paid											$ 40,838
Capitalized interest associated with new building contracts													$ 0	5	$ 292
Agreement To Purchase Ultramax Vessels | Genco Mayflower and Genco Constellation
VESSEL ACQUISITIONS
Number of vessels purchased under option to be acquired per purchase agreement | item																	2
Capacity of vessels | item																	63,000
Purchase price per vessel																	$ 24,563
Agreement To Purchase Ultramax Vessels | Genco Madeleine
VESSEL ACQUISITIONS
Number of vessels purchased under option to be acquired per purchase agreement | item																	1
Capacity of vessels | item																	63,000
Purchase price per vessel																	$ 21,875
Agreement To Purchase Ultramax Vessels | Genco Enterprise
VESSEL ACQUISITIONS
Capacity of vessels | item																			64,000
Purchase price per vessel																			$ 20,200
Ultramax Vessels | Agreement To Exchange Vessels
VESSEL ACQUISITIONS
Number of vessels to be exchanged | item									3
Handysize Vessels | Agreement To Exchange Vessels
VESSEL ACQUISITIONS
Number of vessels to be exchanged | item									6
Adjusted total fair market value of vessels									$ 46,000
Broker commission (as a percent)									1.00%
Genco Provence
VESSEL ACQUISITIONS
Sale of assets				$ 13,250
Broker commission (as a percent)				2.50%
Genco Provence | Secured Debt | $450 Million Credit Facility
VESSEL ACQUISITIONS
Restricted cash - current														$ 5,643
Period for which sales proceeds from vessels will remain as restricted cash				360 days
Collateral vessel replacement period				360 days
Genco Commodus
VESSEL ACQUISITIONS
Sale of assets			$ 19,500
Broker commission (as a percent)			1.00%
Genco Commodus | Subsequent Event
VESSEL ACQUISITIONS
Sale of assets	$ 19,500
Broker commission (as a percent)	1.00%
Genco Claudius
VESSEL ACQUISITIONS
Sale of assets		$ 18,500
Broker commission (as a percent)		1.00%
Genco Maximus
VESSEL ACQUISITIONS
Sale of assets		$ 18,000
Broker commission (as a percent)		1.00%
Baltic Leopard
VESSEL ACQUISITIONS
Sale of assets								$ 8,000
Broker commission (as a percent)								2.00%
Genco Lorraine
VESSEL ACQUISITIONS
Sale of assets							$ 7,950
Broker commission (as a percent)							2.50%

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