XML 7 R3.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName VIRTUS OPPORTUNITIES TRUST
Prospectus Date rr_ProspectusDate Jan. 31, 2011
VIRTUS ALPHASECTOR ROTATION FUND
 
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] cik001005020s_SupplementTextBlock