v3.26.1
Label Element Value
Risk/Return: oef_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Jun. 30, 2025
Registrant Name dei_EntityRegistrantName VIRTUS INVESTMENT TRUST
Entity Central Index Key dei_EntityCentralIndexKey 0000867297
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate May 20, 2026
Document Effective Date dei_DocumentEffectiveDate May 21, 2026
Entity Investment Company Type dei_EntityInvCompanyType N-1A
Prospectus Date oef_ProspectusDate May 21, 2026
Virtus Zevenbergen Technology Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol RAGTX
Virtus Zevenbergen Technology Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol RCGTX
Virtus Zevenbergen Technology Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol DRGTX
Virtus Zevenbergen Technology Fund | R6  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol DRRJX