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Concentration Risk - Schedule of Revenue Concentration (Details) - Product Concentration Risk - Revenue Benchmark
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Money Market Assets    
Concentration Risk [Line Items]    
Concentration risk 46.00% 37.00%
Equity Assets    
Concentration Risk [Line Items]    
Concentration risk 30.00% 38.00%
Fixed-Income Assets    
Concentration Risk [Line Items]    
Concentration risk 12.00% 15.00%