XML 160 R136.htm IDEA: XBRL DOCUMENT v3.21.1
RELATED PARTY TRANSACTIONS - Transactions with Hygo and Affiliates - Payables (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Related Party Transaction [Line Items]    
Amount due from (to) related party $ 2,048 $ 895
Hygo | Trading balances with affiliates    
Related Party Transaction [Line Items]    
Amount due from (to) related party $ (11,222) $ (6,829)