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MARKETABLE SECURITIES (Tables)
 12 Months Ended
Dec. 31, 2019
Marketable Securities [Abstract]  
Schedule of Available-for-sale Securities Reconciliation
The cost of sale of available-for-sale marketable securities is calculated on an average cost basis.
(in thousands of $)
 
2019

 
2018

Balance at the beginning of the year
 
836

 
19,231

Repurchase of marketable securities pledged to creditors
 
8,392

 
10,272

Disposals
 
—

 
(16,749
)
Unrealized gain (loss)
 
1,737

 
(3,526
)
Marketable securities pledged to creditors
 
(7,323
)
 
(8,392
)
Total
 
3,642

 
836