Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Sep. 30, 2023
Registrant Name	dei_EntityRegistrantName	Virtus Opportunities Trust
Entity Central Index Key	dei_EntityCentralIndexKey	0001005020
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Jan. 22, 2024
Document Effective Date	dei_DocumentEffectiveDate	Jan. 29, 2024
EntityInvCompanyType	dei_EntityInvCompanyType	N-1A
Prospectus Date	rr_ProspectusDate	Jan. 29, 2024
Virtus Duff & Phelps Global Infrastructure Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PGUAX
Virtus Duff & Phelps Global Infrastructure Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PGUCX
Virtus Duff & Phelps Global Infrastructure Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PGIUX
Virtus Duff & Phelps Global Infrastructure Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VGIRX
Virtus Duff & Phelps Global Real Estate Securities Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VGSAX
Virtus Duff & Phelps Global Real Estate Securities Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VGSCX
Virtus Duff & Phelps Global Real Estate Securities Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VGISX
Virtus Duff & Phelps Global Real Estate Securities Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VRGEX
Virtus Duff & Phelps Real Asset Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PDPAX
Virtus Duff & Phelps Real Asset Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PDPCX
Virtus Duff & Phelps Real Asset Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VADIX
Virtus Duff & Phelps Real Asset Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VAABX
Virtus Duff & Phelps Real Estate Securities Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PHRAX
Virtus Duff & Phelps Real Estate Securities Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PHRCX
Virtus Duff & Phelps Real Estate Securities Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PHRIX
Virtus Duff & Phelps Real Estate Securities Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VRREX
Virtus KAR Developing Markets Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VDMAX
Virtus KAR Developing Markets Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VDMCX
Virtus KAR Developing Markets Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VIDMX
Virtus KAR Developing Markets Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VDMRX
Virtus KAR Emerging Markets Small-Cap Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VAESX
Virtus KAR Emerging Markets Small-Cap Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VCESX
Virtus KAR Emerging Markets Small-Cap Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VIESX
Virtus KAR Emerging Markets Small-Cap Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VRESX
Virtus KAR International Small-Mid Cap Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VISAX
Virtus KAR International Small-Mid Cap Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VCISX
Virtus KAR International Small-Mid Cap Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VIISX
Virtus KAR International Small-Mid Cap Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VRISX
Virtus Newfleet Core Plus Bond Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	SAVAX
Virtus Newfleet Core Plus Bond Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	SAVCX
Virtus Newfleet Core Plus Bond Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	SAVYX
Virtus Newfleet Core Plus Bond Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VBFRX
Virtus Newfleet High Yield Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PHCHX
Virtus Newfleet High Yield Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PGHCX
Virtus Newfleet High Yield Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PHCIX
Virtus Newfleet High Yield Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VRHYX
Virtus Newfleet Low Duration Core Plus Bond Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HIMZX
Virtus Newfleet Low Duration Core Plus Bond Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PCMZX
Virtus Newfleet Low Duration Core Plus Bond Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HIBIX
Virtus Newfleet Low Duration Core Plus Bond Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VLDRX
Virtus Newfleet Multi-Sector Intermediate Bond Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	NAMFX
Virtus Newfleet Multi-Sector Intermediate Bond Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	NCMFX
Virtus Newfleet Multi-Sector Intermediate Bond Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VMFIX
Virtus Newfleet Multi-Sector Intermediate Bond Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VMFRX
Virtus Newfleet Multi-Sector Short Term Bond Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	NARAX
Virtus Newfleet Multi-Sector Short Term Bond Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PSTCX
Virtus Newfleet Multi-Sector Short Term Bond Fund \| Class C1 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PMSTX
Virtus Newfleet Multi-Sector Short Term Bond Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PIMSX
Virtus Newfleet Multi-Sector Short Term Bond Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VMSSX
Virtus Newfleet Senior Floating Rate Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PSFRX
Virtus Newfleet Senior Floating Rate Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PFSRX
Virtus Newfleet Senior Floating Rate Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PSFIX
Virtus Newfleet Senior Floating Rate Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VRSFX
Virtus Seix Tax-Exempt Bond Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HXBZX
Virtus Seix Tax-Exempt Bond Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PXCZX
Virtus Seix Tax-Exempt Bond Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HXBIX
Virtus SGA Emerging Markets Equity Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HEMZX
Virtus SGA Emerging Markets Equity Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PICEX
Virtus SGA Emerging Markets Equity Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HIEMX
Virtus SGA Emerging Markets Equity Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VREMX
Virtus Vontobel Foreign Opportunities Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JVIAX
Virtus Vontobel Foreign Opportunities Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JVICX
Virtus Vontobel Foreign Opportunities Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JVXIX
Virtus Vontobel Foreign Opportunities Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VFOPX
Virtus Vontobel Global Opportunities Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	NWWOX
Virtus Vontobel Global Opportunities Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	WWOCX
Virtus Vontobel Global Opportunities Fund \| Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	WWOIX
Virtus Vontobel Global Opportunities Fund \| Class R6 Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VRGOX

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The date the document was made available and submitted, in YYYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.

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The date when a document, upon receipt and acceptance, becomes officially effective, in YYYY-MM-DD format. Usually it is a system-assigned date time value, but it may be declared by the submitter in some cases.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The date of the prospectus.

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