v3.25.2
Cover Page
Jul. 10, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Jul. 10, 2025
Entity Registrant Name ALLIANCEBERNSTEIN L.P.
Entity Incorporation, State or Country Code DE
Entity File Number 000-29961
Entity Tax Identification Number 13-4064930
Entity Address, Address Line One 501 Commerce Street
Entity Address, City or Town Nashville
Entity Address, State or Province TN
Entity Address, Postal Zip Code 37023
City Area Code 615
Local Phone Number 622-0000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0001109448
Amendment Flag false