Business Combinations and Divestitures - Schedule of Pro Forma Financial Information (Details) - Envoi, LLC (“Envoi”), East End Advisors, LLC ("EEA"), Pointwise Partners Limited ("PW"), Kontora Family Office GmbH ("Kontora") - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Business Combination, Pro Forma Information [Line Items]
Total revenue	$ 57,238	$ 51,809	$ 172,656	$ 167,518
Net income (loss)	$ (84,135)	$ (72,542)	$ (106,843)	$ (43,116)