Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Beginning balance	$ 137,333	$ 115,599
Acquisitions	33,131	21,452
Foreign currency translation adjustments	(202)	282
Measurement period adjustments	25
Reclassification due to segment reorganization	0
Ending balance	170,287	137,333
Investment Managers
Goodwill [Roll Forward]
Beginning balance	56,990	56,992
Acquisitions	0	0
Foreign currency translation adjustments	(12)	(2)
Measurement period adjustments	0
Reclassification due to segment reorganization	(1,711)
Ending balance	55,267	56,990
Investment Advisors
Goodwill [Roll Forward]
Beginning balance	0	0
Acquisitions	33,131	0
Foreign currency translation adjustments	0	0
Measurement period adjustments	0
Reclassification due to segment reorganization	0
Ending balance	33,131	0
Institutional Investors
Goodwill [Roll Forward]
Beginning balance	61,884	47,108
Acquisitions	0	14,492
Foreign currency translation adjustments	(190)	284
Measurement period adjustments	25
Reclassification due to segment reorganization	0
Ending balance	61,719	61,884
Investments in New Businesses
Goodwill [Roll Forward]
Beginning balance	18,459	11,499
Acquisitions	0	6,960
Foreign currency translation adjustments	0	0
Measurement period adjustments	0
Reclassification due to segment reorganization	1,711
Ending balance	$ 20,170	$ 18,459

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