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INVESTMENTS IN UNCONSOLIDATED AFFILIATES (Tables)
9 Months Ended
Sep. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]  
Carrying values of investments in unconsolidated entities
The carrying values of investments in unconsolidated affiliates, categorized by type of investment, is as follows (in thousands):
September 30, 2020December 31, 2019
Equity method investment$4,167 $4,406 
Non-marketable equity security investment3,018 3,018 
$7,185 $7,424