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Derivative Instruments - Gains (Losses) included in the Statements of Operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Cost of goods sold – Bio-based diesel | Commodity derivatives      
Derivative Instruments, Gain (Loss) [Line Items]      
Pre-tax gains (losses) included in the condensed consolidated statement of operations $ 2,394 $ 36,931 $ (28,898)