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SHARE OPTION PLAN (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
May 31, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options exercised (in shares) |  | 129,000 | 6,869 |
Cash payment under Option Scheme |  | $ 0.1 |  |
Options, expected term | 5 years |  |  |
Vesting period of options awarded to employees | 3 years |  |  |
Unrecognized compensation costs related to non-vested options granted |  | 1.6 |  | $ 0.7
Employee Stock Option |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of options awarded (shares) | 480,000 |  |  |
Initial strike price (usd per share) | $ 8.79 |  |  |
Ship Finance International Limited Share Option Scheme |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Credit to additional paid-in capital |  | $ 0.4 |  |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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