v3.25.4
Performance Management - Morgan Stanley Europe Opportunity Fund, Inc. - Classes A, L, I and C - Europe Opportunity Fund, Inc.
Oct. 31, 2025
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Past Performance
Performance Narrative [Text Block]
The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s Class A shares’ performance from year-to-year and by showing how the Fund’s average annual returns for the past one, five and 10 year periods and since inception compare with those of a broad measure of market performance. The performance of the other classes, which is shown in the table below, will differ because the classes have different ongoing fees. The performance information in the bar chart does not reflect the deduction of sales charges; if these amounts were reflected, returns would be less than shown. The Fund’s returns in the table include the maximum applicable sales charge for Class A and Class C and assume you sold your shares at the end of each period (unless otherwise noted). The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at www.morganstanley.com/im or by calling toll-free 1-800-869-6397.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s Class A shares’ performance from year-to-year and by showing how the Fund’s average annual returns for the past one, five and 10 year periods and since inception compare with those of a broad measure of market performance.
Bar Chart Does Not Reflect Sales Loads [Text] The performance information in the bar chart does not reflect the deduction of sales charges; if these amounts were reflected, returns would be less than shown.
Bar Chart [Heading] Annual Total Returns—Calendar Years
Bar Chart [Table]
image
Bar Chart Closing [Text Block]
High Quarter
06/30/20
30.36%
Low Quarter
03/31/22
-26.22%
Performance Table Heading Average Annual Total Returns(for the calendar periods ended December 31, 2025)
Performance Table Does Reflect Sales Loads The Fund’s returns in the table include the maximum applicable sales charge for Class A and Class C and assume you sold your shares at the end of each period (unless otherwise noted).
Performance Table Uses Highest Federal Rate The after-tax returns shown in the table above are calculated using the historical highest individual federal marginal income tax rates during the period shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).
Performance Table Explanation after Tax Higher After-tax returns may be higher than before-tax returns due to foreign tax credits and/or an assumed benefit from capital losses that would have been realized had Fund shares been sold at the end of the relevant periods, as applicable.
Performance [Table]
 
Past 1
Year
Past 5
Years
Past 10
Years

Since Inception
Class A1
 
 
 
Return Before Taxes
5.75%
-1.15%
6.72%
5.14%
Return After Taxes on Distributions2
5.79%
-1.48%
6.27%
4.40%
Return After Taxes on Distributions and Sale of Fund Shares
3.59%
-0.90%
5.44%
4.16%
Class L1
 
 
 
Return Before Taxes
11.01%
-0.60%
6.75%
4.66%
Class I1
 
 
 
Return Before Taxes
11.93%
0.24%
7.65%
5.67%
Class C1
 
 
 
Return Before Taxes
9.76%
-0.85%
6.64%
4.76%3
MSCI Europe Index (reflects no deduction for fees, expenses or taxes)4
35.41%
10.30%
8.52%
6.11%5
[1],[2],[3],[4],[5]
Performance Table One Class of after Tax Shown [Text] After-tax returns for the Fund’s other classes will vary from the Class A shares’ returns.
Index No Deduction for Fees, Expenses, or Taxes [Text] reflects no deduction for fees, expenses or taxes
Performance Table Closing [Text Block]
The after-tax returns shown in the table above are calculated using the historical highest individual federal marginal income tax rates during the period shown and do not reflect the impact of state and local taxes. After-tax returns for the Fund’s other classes will vary from the Class A shares’ returns. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”). After-tax returns may be higher than before-tax returns due to foreign tax credits and/or an assumed benefit from capital losses that would have been realized had Fund shares been sold at the end of the relevant periods, as applicable.
Performance Availability Website Address [Text] www.morganstanley.com/im
Performance Availability Phone [Text] 1-800-869-6397
Class A  
Prospectus [Line Items]  
Highest Quarterly Return, Label [Optional Text] High Quarter
Highest Quarterly Return 30.36%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Low Quarter
Lowest Quarterly Return (26.22%)
Lowest Quarterly Return, Date Mar. 31, 2022
[1]
2 These returns do not reflect any tax consequences from a sale of your shares at the end of each period, but they do reflect any applicable sales charges on such a sale.
[2]
1 Class A, L and I shares commenced operations on July 28, 1997. Class C shares commenced operations on April 30, 2015.
[3]
4 The MSCI Europe Index is a free float-adjusted market capitalization index that is designed to measure developed market equity performance in Europe. The term “free float” represents the portion of shares outstanding that are deemed to be available for purchase in the public equity markets by investors. The performance of the Index is listed in U.S. dollars and assumes reinvestment of net dividends. “Net dividends” reflects a reduction in dividends after taking into account withholding of taxes by certain foreign countries represented in the Index. It is not possible to invest directly in an index.
[4]
5 Since Inception reflects the inception date of Class A shares.
[5]
3 Class C shares will generally convert to Class A shares approximately eight years after the end of the calendar month in which the shares were purchased. Performance for periods greater than eight years reflects this conversion.