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Commitments and Contingencies (Details) - U.S. Commodity Futures Trading Commission (CFTC)
9 Months Ended
Sep. 30, 2021
USD ($)
Loss Contingencies [Line Items]  
Loss contingency, filing date April 1, 2015
Loss contingency, damages sought $ 1,000,000
Each Additional Violation of the Commodity Exchange Act  
Loss Contingencies [Line Items]  
Loss contingency, damages sought $ 140,000