Label	Element	Value
Virtus Zevenbergen Innovative Growth Stock Fund
Risk/Return:	rr_RiskReturnAbstract
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	Virtus Seix Corporate Bond Fund and Virtus Zevenbergen Innovative Growth Stock Fund, each, a series of Virtus Asset Trust Supplement dated October 19, 2020 to the Summary Prospectuses, Statutory Prospectuses and Statement of Additional Information (“SAI”), each dated October 19, 2020 Important Notice Availability of Shares Class R6 Shares are not currently available for purchase. Investors should retain this supplement for future reference.
Risk/Return [Heading]	rr_RiskReturnHeading	Virtus Zevenbergen Innovative Growth Stock Fund

Risk/Return Summary Investment Objectives/Goals Include the following information, in plain English under rule 421(d) under the Securities Act, in the order and subject matter indicated

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 2

Name:	rr_RiskReturnHeading
Namespace Prefix:	rr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration