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Revenue from Contracts with Customers - Disaggregation of Revenue by Asset Class (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total Revenue	$ 423,540	$ 396,371
Money market
Disaggregation of Revenue [Line Items]
Total Revenue	223,346	202,640
Equity
Disaggregation of Revenue [Line Items]
Total Revenue	117,903	116,515
Fixed-income
Disaggregation of Revenue [Line Items]
Total Revenue	49,434	48,675
Other
Disaggregation of Revenue [Line Items]
Total Revenue	$ 32,857	$ 28,541

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