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OTHER INCOME (EXPENSE) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Other Income and Expenses [Abstract]      
Gain (Loss) on Sale of Investments $ (703) $ 4,695  
Gain (Loss) on Investments 0 0 $ 687
Equity investment income 720 2,394 3,993
Gain on sale of assets 440 871 428
Rental Income, Nonoperating 2,336 1,697 1,804
Gain on building and investment sale 4,152 4,695 0
Other (expense) income 2,551 (1,264) 10,179
Other income 18,799 8,393 17,091
Gain (Loss) Related to Litigation Settlement 8,600    
Gain (Loss) on Sale of Properties 4,855    
Proceeds from Noncontrolling Interests   24,882  
Common Stock, Shares Held in Employee Trust     1,188
Variable Interest Entity, Members Draw (559) $ (2,968) (2,448)
Unusual or Infrequent Item, or Both, Insurance Proceeds 8,600   $ 1,600
Production Related Impairments or Charges $ 13,800