v3.26.1
Label Element Value
Risk/Return: oef_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Dec. 31, 2025
Registrant Name dei_EntityRegistrantName Virtus Alternative Solutions Trust
Entity Central Index Key dei_EntityCentralIndexKey 0001589756
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Apr. 17, 2026
Document Effective Date dei_DocumentEffectiveDate Apr. 28, 2026
Entity Investment Company Type dei_EntityInvCompanyType N-1A
Prospectus Date oef_ProspectusDate Apr. 28, 2026
Virtus AlphaSimplex Global Alternatives Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAFAX
Virtus AlphaSimplex Global Alternatives Fund | Class I Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAFYX
Virtus AlphaSimplex Global Alternatives Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAFNX
Virtus AlphaSimplex Managed Futures Strategy Fund | Class A Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AMFAX
Virtus AlphaSimplex Managed Futures Strategy Fund | Class C Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ASFCX
Virtus AlphaSimplex Managed Futures Strategy Fund | Class I Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol ASFYX
Virtus AlphaSimplex Managed Futures Strategy Fund | Class R6 Shares  
Risk/Return: oef_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol AMFNX