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SUBSEQUENT EVENTS (Details) - Subsequent event - $ / shares	1 Months Ended	2 Months Ended
	Jan. 31, 2024	Feb. 29, 2024	Feb. 06, 2024
Subsequent Event [Line Items]
Dividends per share (USD per share)			$ 0.75
Flex Constellation
Subsequent Event [Line Items]
Sale and charterback agreement, charter period	3 years
Sale and charterback agreement, charter period extension	3 years
Flex Resolute and Flex Courageous
Subsequent Event [Line Items]
Sale and charterback agreement, charter period		3 years
Sale and charterback agreement, charter period extension		2 years
Flex Resolute and Flex Courageous | Maximum
Subsequent Event [Line Items]
Sale and charterback agreement, charter period extension		4 years

X

- Definition

Sale and Charterback Agreement, Charter Period

+ References

No definition available.

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- Definition

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+ References

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- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
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X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481674/830-30-50-2

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-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
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