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CASH FLOW INFORMATION - Non-cash (Details) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Non-cash investing and financing activities |  |
Reclassification from deposits on vessels to vessels, net of accumulated depreciation | $ 18,543 |
Reclassification from vessels to vessels held for sale |  | $ 7,798
Cash dividends paid | 61,572 | 2,983
Cash paid for interest | 3,739 | 6,764
Cash paid for estimated income taxes | 0 | 0
Accounts payable and accrued expenses |  |
Non-cash investing and financing activities |  |
Purchases of vessels and ballast water treatment systems | 3,965 | 497
Purchase of scrubbers |  | 27
Purchase of other fixed assets | 1,036 | 35
Net proceeds from sale of vessels |  | 7
Non-cash financing activities cash dividends payable | 599 | $ 86
Prepaid expenses and other current assets |  |
Non-cash investing and financing activities |  |
Purchases of vessels and ballast water treatment systems | $ 348 |

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