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Revenue from Contracts with Customers - Disaggregation of Revenue by Asset Class (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]      
Total Revenue $ 1,445,814 $ 1,300,447 $ 1,448,268
Money market      
Disaggregation of Revenue [Line Items]      
Total Revenue 575,261 239,318 570,815
Equity      
Disaggregation of Revenue [Line Items]      
Total Revenue 526,957 677,917 551,028
Fixed-income      
Disaggregation of Revenue [Line Items]      
Total Revenue 206,794 237,702 193,649
Other      
Disaggregation of Revenue [Line Items]      
Total Revenue $ 136,802 $ 145,510 $ 132,776