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Contingencies (Details)
Sep. 13, 2022
USD ($)
Sep. 06, 2022
USD ($)
Aug. 31, 2021
USD ($)
Sep. 30, 2022
USD ($)
arbitration
Loss Contingencies [Line Items]        
Number of arbitrations | arbitration       28
Damages sought     $ 45,300,000  
Compensatory damages awarded claimants   $ 5,700,000    
Punitive damages, attorneys fees   16,800,000    
Amount disgorged to SEC $ 1,900,000      
RICO Damages        
Loss Contingencies [Line Items]        
Compensatory damages awarded claimants   14,200,000    
Robinson Award        
Loss Contingencies [Line Items]        
Compensatory damages awarded claimants   $ 36,744,276    
Minimum        
Loss Contingencies [Line Items]        
Estimated range of loss in excess of amounts accrued       $ 0
Maximum        
Loss Contingencies [Line Items]        
Estimated range of loss in excess of amounts accrued       $ 47,000,000