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INVESTMENTS IN ASSOCIATED COMPANIES (Balance sheet information) (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]      
Total current assets $ 330,968   $ 250,316
Total assets 3,589,799   3,459,297
Current liabilities 860,188   400,316
Total liabilities 2,543,245   2,476,970
Equity method investment, nonconsolidated investee, other      
Schedule of Equity Method Investments [Line Items]      
Total current assets 14,417   13,987
Non-current assets 241,137   247,361
Total assets 255,554   261,348
Current liabilities 13,609   13,242
Non-current liabilities 225,361   231,471
Total liabilities 238,970   244,713
Total stockholders’ equity 16,584   16,635
River Box Holding Inc. ("River Box")      
Schedule of Equity Method Investments [Line Items]      
Total current assets 14,417   13,987
Non-current assets 241,137   247,361
Total assets 255,554   261,348
Current liabilities 13,609   13,242
Non-current liabilities 225,361   231,471
Total liabilities 238,970   244,713
Total stockholders’ equity $ 16,584   $ 16,635
River Box Holding Inc. ("River Box")      
Schedule of Equity Method Investments [Line Items]      
Participation in equity method investee (in percentage) 49.90% 49.90% 49.90%