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Revenue from Contracts with Customers - Disaggregation of Revenue by Asset Class (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Disaggregation of Revenue [Line Items]    
Total Revenue $ 382,189 $ 324,764
Money market    
Disaggregation of Revenue [Line Items]    
Total Revenue 179,536 86,290
Equity    
Disaggregation of Revenue [Line Items]    
Total Revenue 124,653 146,856
Fixed-income    
Disaggregation of Revenue [Line Items]    
Total Revenue 47,890 57,874
Other    
Disaggregation of Revenue [Line Items]    
Total Revenue $ 30,110 $ 33,744