v3.25.4
Label Element Value
Risk/Return: oef_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Sep. 30, 2025
Registrant Name dei_EntityRegistrantName Virtus Strategy Trust
Entity Central Index Key dei_EntityCentralIndexKey 0001423227
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jan. 21, 2026
Document Effective Date dei_DocumentEffectiveDate Jan. 28, 2026
Entity Investment Company Type dei_EntityInvCompanyType N-1A
Prospectus Date oef_ProspectusDate Jan. 28, 2026
Virtus Convertible Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANZAX
Virtus Convertible Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANZCX
Virtus Convertible Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ANNPX
Virtus Convertible Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol VAADX
Virtus Duff & Phelps Water Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AWTAX
Virtus Duff & Phelps Water Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AWTCX
Virtus Duff & Phelps Water Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AWTIX
Virtus Global Allocation Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PALAX
Virtus Global Allocation Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol PALLX
Virtus Global Allocation Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AGASX
Virtus International Small-Cap Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AOPAX
Virtus International Small-Cap Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ALOIX
Virtus International Small-Cap Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AIISX
Virtus Newfleet Short Duration High Income Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ASHAX
Virtus Newfleet Short Duration High Income Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ASHCX
Virtus Newfleet Short Duration High Income Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ASHIX
Virtus Newfleet Short Duration High Income Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ASHSX
Virtus NFJ Emerging Markets Value Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AZMAX
Virtus NFJ Emerging Markets Value Fund | Institutional Class Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AZMIX