v3.26.3
Label Element Value
Risk/Return: oef_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Nov. 10, 2026
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 Nov. 09, 2026
Document Effective Date dei_DocumentEffectiveDate Nov. 10, 2026
Entity Investment Company Type dei_EntityInvCompanyType N-1A
Prospectus Date oef_ProspectusDate Nov. 10, 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