Related Party Transactions - Allianz Transaction (Details) $ / shares in Units, $ in Thousands			3 Months Ended		6 Months Ended
	Jul. 31, 2024 director $ / shares shares	Feb. 22, 2024 USD ($) $ / shares shares	Jun. 30, 2025 USD ($) shares	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) shares	Jun. 30, 2024 USD ($)	May 13, 2025 shares	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Related Party Transaction [Line Items]
Preferred stock tranche liability, at fair value			$ 2,150		$ 2,150				$ 3,940
Gain (loss) on preferred stock tranche liability			(750)	$ 0	1,790	$ 0
Equity method investments			5,471		5,471				27,517
Related party
Related Party Transaction [Line Items]
Equity method investments			0		0				20,300
Allianz warrant
Related Party Transaction [Line Items]
Warrant liabilities, at fair value			6,600		6,600				6,600
Series A Preferred Stock
Related Party Transaction [Line Items]
Preferred stock			164,914		164,914			$ 144,618	142,858
Series A Preferred Stock \| Related party
Related Party Transaction [Line Items]
Preferred stock			$ 164,914		$ 164,914				$ 142,858
Allianz Strategic Investments S.à.r.l. (“Allianz”) \| Series A Preferred Stock \| Allianz Investment Agreement
Related Party Transaction [Line Items]
Sale of stock, number of shares issued in transaction (in shares) \| shares	140,000
Preferred stock, dividend rate, per-dollar amount (in dollars per share) \| $ / shares	$ 1,000
Dividends payable (in percent)	50.00%
Allianz Strategic Investments S.à.r.l. (“Allianz”) \| Series A Preferred Stock \| Allianz Investment Agreement \| Allianz Tranche Right
Related Party Transaction [Line Items]
Number of securities called by warrants or rights (in shares) \| shares		50,000	1,523,289		1,523,289		18,471
Value of securities called by warrant or right		$ 50,000
Preferred stock, dividend rate, per-dollar amount (in dollars per share) \| $ / shares		$ 1,000
Allianz Strategic Investments S.à.r.l. (“Allianz”) \| Class A Common Stock \| Allianz Investment Agreement
Related Party Transaction [Line Items]
Sale of stock, number of shares issued in transaction (in shares) \| shares	19,318,580.96
Number of directors available for nomination \| director	2
Threshold of ownership (in percent)	50.00%
Dividends payable (in percent)	50.00%
Allianz Strategic Investments S.à.r.l. (“Allianz”) \| Class A Common Stock \| Allianz Investment Agreement \| Allianz warrant
Related Party Transaction [Line Items]
Number of securities called by warrants or rights (in shares) \| shares	5,000,000

AlTi Global, Inc. 10-Q