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STOCK-BASED COMPENSATION - NARRATIVE (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation $ 1,097 $ 2,146 $ 856 $ 2,051
Stock swaps (in shares) 17,665 17,221 22,027 185,951
Common Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock swaps equity instruments received (in shares) 11,085 7,779 13,009 91,598