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FINANCIAL INSTRUMENTS (Schedule of concentration of revenue risk) (Details) - vessel	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Frontline Shipping
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Number of chartered vessels	0
Frontline Shipping | Sales revenue, net | Customer concentration risk
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration risk, percentage	1.00%	2.00%
Golden Ocean Group Limited (“Golden Ocean”)*
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Number of chartered vessels	8
Golden Ocean Group Limited (“Golden Ocean”)* | Sales revenue, net | Customer concentration risk
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration risk, percentage	9.00%	12.00%
MSC
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Number of chartered vessels	9
MSC | Sales revenue, net | Customer concentration risk
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration risk, percentage	1.00%	3.00%
Maersk A/S (“Maersk”)
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Number of chartered vessels	15
Maersk A/S (“Maersk”) | Sales revenue, net | Customer concentration risk
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration risk, percentage	31.00%	33.00%
Evergreen
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Number of chartered vessels	6
Evergreen | Sales revenue, net | Customer concentration risk
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration risk, percentage	17.00%	15.00%
Trafigura
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Number of chartered vessels	7
Trafigura | Sales revenue, net | Customer concentration risk
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration risk, percentage	9.00%	0.00%

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+ References

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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-URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

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