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Variable Interest Entities (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Investments in trading securities	$ 32,674	$ 15,342
Fee revenues from Westwood VIEs	32,400	$ 23,200	$ 22,800
Common Trust Funds
Variable Interest Entity [Line Items]
Investments in trading securities	$ 0

X

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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X

- Definition

The amount of income between the reporting entity and the Variable Interest Entity (VIE).

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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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