Label	Element	Value
Virtus Duff & Phelps Real Asset Fund
Risk/Return:	rr_RiskReturnAbstract
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	Virtus Duff & Phelps Real Asset Fund (the “Fund”), a series of Virtus Opportunities Trust Supplement dated March 1, 2024 to the Summary Prospectus and the Virtus Opportunities Trust Statutory Prospectus pertaining to the Fund, each dated January 29, 2024, as supplemented
Risk/Return [Heading]	rr_RiskReturnHeading	Virtus Duff & Phelps Real Asset Fund
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The table showing Average Annual Total Returns in the “Performance Information” section of the Fund’s summary prospectus and the summary section of the statutory prospectus applicable to the Fund, is hereby replaced in its entirety with the following:
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	(reflects no deduction for fees, expenses or taxes)
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	Investors should retain this supplement with the Prospectuses for future reference.
Virtus Duff & Phelps Real Asset Fund \| MSCI All Country World Index (net) (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	MSCI All Country World Index (net) (reflects no deduction for fees, expenses or taxes)
1 Year	rr_AverageAnnualReturnYear01	22.20%
5 Years	rr_AverageAnnualReturnYear05	11.72%
10 Years	rr_AverageAnnualReturnYear10	7.92%
Since Inception	rr_AverageAnnualReturnSinceInception	2.54%
Virtus Duff & Phelps Real Asset Fund \| Class A
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	(1.01%)
5 Years	rr_AverageAnnualReturnYear05	5.72%
10 Years	rr_AverageAnnualReturnYear10	2.76%
Virtus Duff & Phelps Real Asset Fund \| Class C
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	3.91%
5 Years	rr_AverageAnnualReturnYear05	6.08%
10 Years	rr_AverageAnnualReturnYear10	2.55%
Virtus Duff & Phelps Real Asset Fund \| Class I
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	4.95%
5 Years	rr_AverageAnnualReturnYear05	7.19%
10 Years	rr_AverageAnnualReturnYear10	3.60%
Virtus Duff & Phelps Real Asset Fund \| Class I \| After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	4.26%
5 Years	rr_AverageAnnualReturnYear05	6.69%
10 Years	rr_AverageAnnualReturnYear10	3.09%
Virtus Duff & Phelps Real Asset Fund \| Class I \| After Taxes on Distributions and Sale of Fund Shares
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	3.22%
5 Years	rr_AverageAnnualReturnYear05	5.54%
10 Years	rr_AverageAnnualReturnYear10	2.70%
Virtus Duff & Phelps Real Asset Fund \| Class R6
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	5.03%
Since Inception	rr_AverageAnnualReturnSinceInception	1.51%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 31, 2022

Return Before Taxes.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 4
-Subsection b
-Paragraph 2
-Subparagraph instructions
-Clause 4

+ Details

Name:	rr_AverageAnnualReturnInceptionDate
Namespace Prefix:	rr_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

This item represents Average Annual Total Returns. If a Multiple Class Fund offers a Class in the prospectus that converts into another Class after a stated period, compute average annual total returns in the table by using the returns of the other Class for the period after conversion.

+ References