CASH FLOW INFORMATION - Non-cash (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Non-cash investing and financing activities
Cash paid for interest	$ 7,071	$ 6,641
Cash received from settlement of interest cap agreements	588	3,443
Accounts payable and accrued expenses
Non-cash investing and financing activities
Purchases of vessels and ballast water treatment systems, including deposits	702	749
Purchase of other fixed assets	373	301
Vessels held for sale	39
Net proceeds from sale of vessels	75
Cash dividends declared but not yet paid	$ 1,230	$ 853