Business Description, Organization and Basis of Presentation - Additional Information (Details)	3 Months Ended
Mar. 31, 2026 shares
AB Holding \| AB
Distribution Made to Limited Partner [Line Items]
General partnership interest in company	1.00%
AB Holding \| General Partnership Interest \| AB
Distribution Made to Limited Partner [Line Items]
General partners' capital account, units outstanding	100,000
AB
Distribution Made to Limited Partner [Line Items]
Economic interest, percentage	68.00%
AB \| EQH and its subsidiaries
Distribution Made to Limited Partner [Line Items]
General partnership interest in company	1.00%
AB \| General Partnership Interest \| AB
Distribution Made to Limited Partner [Line Items]
General partnership interest in company	1.00%

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.

No definition available.

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- Definition

The number of general partner units outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-3

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

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