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Goodwill and Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 137,333
Measurement period adjustments	25
Reclassification due to segment reorganization	0
Foreign currency translation adjustments	727
Goodwill, ending balance	138,085
Institutional Investors
Goodwill [Roll Forward]
Goodwill, beginning balance	61,884
Measurement period adjustments	25
Reclassification due to segment reorganization	0
Foreign currency translation adjustments	730
Goodwill, ending balance	62,639
Investment Managers
Goodwill [Roll Forward]
Goodwill, beginning balance	56,990
Measurement period adjustments	0
Reclassification due to segment reorganization	(1,711)
Foreign currency translation adjustments	(3)
Goodwill, ending balance	55,276
Investments In New Businesses
Goodwill [Roll Forward]
Goodwill, beginning balance	18,459
Measurement period adjustments	0
Reclassification due to segment reorganization	1,711
Foreign currency translation adjustments	0
Goodwill, ending balance	$ 20,170

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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