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Cover	Aug. 15, 2025 shares
Cover [Abstract]
Document Type	DEF 14A
Entity Registrant Name	ADVENT CONVERTIBLE AND INCOME FUND
Shares, Outstanding	44,148,745
Entity Central Index Key	0001219120
Amendment Flag	false

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Cover page.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2

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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

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-Number 240
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Number of shares issued which are neither cancelled nor held in the treasury.

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