LEASES (Schedule of lease cost) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating lease, cost	$ 7,797	$ 5,679	$ 22,799	$ 17,283
Total lease cost	4,857	3,974	13,309	11,452
Vessel/Fleet [Member] \| Charter Hire Expense [Member]
Operating lease, cost	2,849	2,108	7,748	6,999
Short-term lease, cost	1,737	1,322	4,749	3,278
Office Space [Member] \| General and Administrative Expense [Member]
Operating lease, cost	228	501	683	1,048
Office Space [Member] \| Voyage Expense [Member]
Operating lease, cost	43	43	129	127
Lightering Services Component [Member] \| Vessel/Fleet [Member]
Short-term lease, cost	$ 700	$ 100	$ 1,200	$ 300

Amount of lease cost recognized by lessee for lease contract.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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