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Cover
Sep. 23, 2024
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 23, 2024
Entity File Number 811-21309
Entity Registrant Name Advent Convertible and Income Fund
Entity Central Index Key 0001219120
Entity Tax Identification Number 11-3683138
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 888 Seventh Avenue, 31st Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10019
City Area Code 212
Local Phone Number 482-1600
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Shares of Beneficial Interest
Trading Symbol AVK
Security Exchange Name NYSE
Entity Emerging Growth Company false