v3.26.3
Label Element Value
Risk/Return: oef_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Jun. 30, 2026
Registrant Name dei_EntityRegistrantName VIRTUS INVESTMENT TRUST
Entity Central Index Key dei_EntityCentralIndexKey 0000867297
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Oct. 21, 2026
Document Effective Date dei_DocumentEffectiveDate Oct. 28, 2026
Entity Investment Company Type dei_EntityInvCompanyType N-1A
Prospectus Date oef_ProspectusDate Oct. 28, 2026
Virtus Emerging Markets Opportunities Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AOTAX
Virtus Emerging Markets Opportunities Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AOTIX
Virtus Emerging Markets Opportunities Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AEMOX
Virtus Income & Growth Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AZNAX
Virtus Income & Growth Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AZNCX
Virtus Income & Growth Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AZNIX
Virtus KAR Global Small-Cap Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol RGSAX
Virtus KAR Global Small-Cap Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol DGSCX
Virtus KAR Health Sciences Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol RAGHX
Virtus KAR Health Sciences Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol HLHIX
Virtus NFJ Dividend Value Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PNEAX
Virtus NFJ Dividend Value Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PNECX
Virtus NFJ Dividend Value Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol NFJEX
Virtus NFJ Dividend Value Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANDVX
Virtus NFJ International Value Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AFJAX
Virtus NFJ International Value Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANJIX
Virtus NFJ International Value Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANAVX
Virtus NFJ Large-Cap Value Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PNBAX
Virtus NFJ Large-Cap Value Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANVIX
Virtus NFJ Large-Cap Value Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol VAAGX
Virtus NFJ Mid-Cap Value Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PQNAX
Virtus NFJ Mid-Cap Value Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PQNCX
Virtus NFJ Mid-Cap Value Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PRNIX
Virtus NFJ Mid-Cap Value Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANPRX
Virtus NFJ Small-Cap Value Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PCVAX
Virtus NFJ Small-Cap Value Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PSVIX
Virtus NFJ Small-Cap Value Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANFVX
Virtus Silvant Focused Growth Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PGWAX
Virtus Silvant Focused Growth Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PGWCX
Virtus Silvant Focused Growth Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PGFIX
Virtus Silvant Focused Growth Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AFGFX
Virtus Silvant Mid-Cap Growth Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol RMDAX
Virtus Silvant Mid-Cap Growth Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol RMDCX
Virtus Silvant Mid-Cap Growth Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol DRMCX
Virtus Silvant Mid-Cap Growth Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol RMDZX
Virtus Small-Cap Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AZBAX
Virtus Small-Cap Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AZBCX
Virtus Small-Cap Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AZBIX
Virtus Small-Cap Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ASCFX
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