Class Of Warrant Or Right, Value Of Securities Called By Warrant Or Right

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- 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.

+ References

No definition available.

+ Details

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-4

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-5

+ Details

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Period Type:	duration

- Details

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- Details

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Namespace Prefix:
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- Details

Name:	srt_CounterpartyNameAxis=alti_AllianzStrategicInvestmentsS.a.r.l.AllianzMember
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Data Type:	na
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Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=alti_AllianzTrancheRightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Earnings Per Share - Schedule of Treatment for Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Feb. 22, 2024
Class B Common Stock
Class of Warrant or Right [Line Items]
Converted shares (in shares)	3,314,794	1,028,652
Series A Preferred Stock \| Allianz Strategic Investments S.à.r.l. (“Allianz”) \| Allianz Tranche Right \| Allianz Investment Agreement
Class of Warrant or Right [Line Items]
Number of securities called by warrants or rights (in shares)	18,471		50,000
Value of securities called by warrant or right			$ 50