Investments - Summary of Cost and Fair Value of Investments in Proprietary Funds (Details) - Proprietary Funds - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule Of Available For Sale Securities [Line Items]
Cost	$ 574	$ 569
Gross Unrealized Gains	93	55
Gross Unrealized (Losses)	(71)	(90)
Investments in proprietary funds, at fair value	$ 596	$ 534

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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