Document and Entity Information	Total
Prospectus:
Document Type	497
Document Period End Date	Dec. 31, 2020
Registrant Name	VIRTUS ASSET TRUST
Entity Central Index Key	0001018593
Entity Inv Company Type	N-1A
Amendment Flag	false
Document Creation Date	Nov. 30, 2021
Document Effective Date	Nov. 30, 2021
Prospectus Date	Apr. 28, 2021
Virtus Ceredex Small-Cap Value Equity Fund \| Class A
Prospectus:
Trading Symbol	SASVX
Virtus Ceredex Small-Cap Value Equity Fund \| Class C
Prospectus:
Trading Symbol	STCEX
Virtus Ceredex Small-Cap Value Equity Fund \| Class I
Prospectus:
Trading Symbol	SCETX
Virtus Ceredex Small-Cap Value Equity Fund \| Class R6
Prospectus:
Trading Symbol	VVERX
Virtus Seix Investment Grade Tax-Exempt Bond Fund \| Class A
Prospectus:
Trading Symbol	SISIX
Virtus Seix Investment Grade Tax-Exempt Bond Fund \| Class I
Prospectus:
Trading Symbol	STTBX

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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