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INVESTMENTS - Activity in Investments (Details) - Marketable equity securities
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
Investments rollforward  
Opening balance $ 1,885
Net gain (loss) on securities sold (16)
Disposals/transfers during period (112)
Unrealized (loss) on securities held (882)
Fair Value end of the period $ 875