| Form N-CSR Cover | 12 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | BlackRock EuroFund |
| Entity Central Index Key | 0000790525 |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 12 Months Ended |
| Jun. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | BlackRock EuroFund |
| Entity Central Index Key | 0000790525 |
| Document Period End Date | Jun. 30, 2024 |
| C000005590 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock EuroFund |
| Class Name | Institutional Shares |
| Trading Symbol | MAEFX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock EuroFund (the “Fund”) for the period of July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Institutional Shares $ 1.09 % |
| Expenses Paid, Amount | $ 115 |
| Expense Ratio, Percent | 1.09% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? European stocks posted a solid gain during the reporting period, but currency translation detracted from returns for U.S.-based investors. The markets benefited from the combination of stable economic growth trends and expectations that central banks would begin to cut interest rates. The peripheral European countries generally outperformed the broader region, while France was a notable laggard. What contributed to performance? The portfolio’s positioning in technology was the largest positive contributor, with semiconductor stocks—including ASML Holding NV and ASM International NV—ranking as top individual contributors thanks to rising chip demand. ASML reported record profits with strong new order bookings. ASM International raised its revenue guidance behind stronger-than-anticipated demand from China and increased sales in the advanced logic and memory sectors. Shares in UniCredit SpA also performed strongly. The Italian bank posted stellar full year 2023 results with a net profit close to €9 billion, beating the market’s expectations. It also remained disciplined with respect to mergers and acquisitions, and it adopted a policy whereby it will distribute 90% of its earnings to shareholders through dividends and share buybacks. What detracted from performance? LVMH Moet Hennessy Louis Vuitton SA was a prominent detractor. Growth rates for the broader luxury sector continued to normalize after a few years of very strong sales. More recently, the stock weakened on concerns about slowing demand in China and Europe. The Dutch payments company Adyen NV also hurt performance. The shares fell sharply in August 2023 after a disappointing earnings update showed a dramatic slowdown in growth amid rising competition. The Fund sold its position in the stock. DSV A/S, a Danish transport and logistics firm, was another detractor of note. The company missed estimates, and investors grew concerned that it would make a large acquisition. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: July 1, 2014 through June 30, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Institutional Shares 11.65 % 8.58 % 3.81 % MSCI EMU Index 9.64 % 6.67 % 4.05 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Material Change Date | Jun. 30, 2023 |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 107,406,083 |
| Holdings Count | Holding | 43 |
| Advisory Fees Paid, Amount | $ 689,677 |
| Investment Company Portfolio Turnover | 32% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of June 30, 2024) Geographic allocation Country/Geographic Region Percent of France 26.2 ) % Germany 23.9 ) % Netherlands 17.6 ) % United States 10.7 ) % Italy 7.8 ) % Spain 3.7 ) % United Kingdom 2.6 ) % Belgium 2.1 ) % Ireland 1.7 ) % Singapore 1.5 ) % Other # 3.0 ) % Liabilities in Excess of Other Assets (0.8 ) % Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % (a) Excludes short-term securities. # Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other. |
| Largest Holdings [Text Block] | Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % |
| Material Fund Change [Text Block] | Material Fund changes This is a summary of certain changes to the Fund since June 30, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after June 30, 2024 at blackrock.com/fundreports The net expense ratio decreased from the prior fiscal year end primarily due to a decrease in operating expenses. Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 0.99%. |
| Material Fund Change Expenses [Text Block] | The net expense ratio decreased from the prior fiscal year end primarily due to a decrease in operating expenses. Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 0.99%. |
| Updated Prospectus Phone Number | (800) 441-7762 |
| Updated Prospectus Web Address | blackrock.com/fundreports |
| C000005587 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock EuroFund |
| Class Name | Investor A Shares |
| Trading Symbol | MDEFX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock EuroFund (the “Fund”) for the period of July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Investor A Shares $ 1.34 % |
| Expenses Paid, Amount | $ 142 |
| Expense Ratio, Percent | 1.34% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? European stocks posted a solid gain during the reporting period, but currency translation detracted from returns for U.S.-based investors. The markets benefited from the combination of stable economic growth trends and expectations that central banks would begin to cut interest rates. The peripheral European countries generally outperformed the broader region, while France was a notable laggard. What contributed to performance? The portfolio’s positioning in technology was the largest positive contributor, with semiconductor stocks—including ASML Holding NV and ASM International NV—ranking as top individual contributors thanks to rising chip demand. ASML reported record profits with strong new order bookings. ASM International raised its revenue guidance behind stronger-than-anticipated demand from China and increased sales in the advanced logic and memory sectors. Shares in UniCredit SpA also performed strongly. The Italian bank posted stellar full year 2023 results with a net profit close to €9 billion, beating the market’s expectations. It also remained disciplined with respect to mergers and acquisitions, and it adopted a policy whereby it will distribute 90% of its earnings to shareholders through dividends and share buybacks. What detracted from performance? LVMH Moet Hennessy Louis Vuitton SA was a prominent detractor. Growth rates for the broader luxury sector continued to normalize after a few years of very strong sales. More recently, the stock weakened on concerns about slowing demand in China and Europe. The Dutch payments company Adyen NV also hurt performance. The shares fell sharply in August 2023 after a disappointing earnings update showed a dramatic slowdown in growth amid rising competition. The Fund sold its position in the stock. DSV A/S, a Danish transport and logistics firm, was another detractor of note. The company missed estimates, and investors grew concerned that it would make a large acquisition. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: July 1, 2014 through June 30, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Investor A Shares 11.36 % 8.35 % 3.58 % Investor A Shares (with sales charge) 5.51 % 7.18 % 3.03 % MSCI EMU Index 9.64 % 6.67 % 4.05 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Material Change Date | Jun. 30, 2023 |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 107,406,083 |
| Holdings Count | Holding | 43 |
| Advisory Fees Paid, Amount | $ 689,677 |
| Investment Company Portfolio Turnover | 32% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of June 30, 2024) Geographic allocation Country/Geographic Region Percent of France 26.2 ) % Germany 23.9 ) % Netherlands 17.6 ) % United States 10.7 ) % Italy 7.8 ) % Spain 3.7 ) % United Kingdom 2.6 ) % Belgium 2.1 ) % Ireland 1.7 ) % Singapore 1.5 ) % Other # 3.0 ) % Liabilities in Excess of Other Assets (0.8 ) % Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % (a) Excludes short-term securities. # Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other. |
| Largest Holdings [Text Block] | Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % |
| Material Fund Change [Text Block] | Material Fund changes This is a summary of certain changes to the Fund since June 30, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after June 30, 2024 at blackrock.com/fundreports The net expense ratio decreased from the prior fiscal year end primarily due to a decrease in operating expenses. Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 1.24%. |
| Material Fund Change Expenses [Text Block] | The net expense ratio decreased from the prior fiscal year end primarily due to a decrease in operating expenses. Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 1.24%. |
| Updated Prospectus Phone Number | (800) 441-7762 |
| Updated Prospectus Web Address | blackrock.com/fundreports |
| C000005589 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock EuroFund |
| Class Name | Investor C Shares |
| Trading Symbol | MCEFX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock EuroFund (the “Fund”) for the period of July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Investor C Shares $ 2.09 % |
| Expenses Paid, Amount | $ 220 |
| Expense Ratio, Percent | 2.09% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? European stocks posted a solid gain during the reporting period, but currency translation detracted from returns for U.S.-based investors. The markets benefited from the combination of stable economic growth trends and expectations that central banks would begin to cut interest rates. The peripheral European countries generally outperformed the broader region, while France was a notable laggard. What contributed to performance? The portfolio’s positioning in technology was the largest positive contributor, with semiconductor stocks—including ASML Holding NV and ASM International NV—ranking as top individual contributors thanks to rising chip demand. ASML reported record profits with strong new order bookings. ASM International raised its revenue guidance behind stronger-than-anticipated demand from China and increased sales in the advanced logic and memory sectors. Shares in UniCredit SpA also performed strongly. The Italian bank posted stellar full year 2023 results with a net profit close to €9 billion, beating the market’s expectations. It also remained disciplined with respect to mergers and acquisitions, and it adopted a policy whereby it will distribute 90% of its earnings to shareholders through dividends and share buybacks. What detracted from performance? LVMH Moet Hennessy Louis Vuitton SA was a prominent detractor. Growth rates for the broader luxury sector continued to normalize after a few years of very strong sales. More recently, the stock weakened on concerns about slowing demand in China and Europe. The Dutch payments company Adyen NV also hurt performance. The shares fell sharply in August 2023 after a disappointing earnings update showed a dramatic slowdown in growth amid rising competition. The Fund sold its position in the stock. DSV A/S, a Danish transport and logistics firm, was another detractor of note. The company missed estimates, and investors grew concerned that it would make a large acquisition. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: July 1, 2014 through June 30, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Investor C Shares 10.52 % 7.52 % 2.93 % Investor C Shares (with sales charge) 9.52 % 7.52 % 2.93 % MSCI EMU Index 9.64 % 6.67 % 4.05 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Material Change Date | Jun. 30, 2023 |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 107,406,083 |
| Holdings Count | Holding | 43 |
| Advisory Fees Paid, Amount | $ 689,677 |
| Investment Company Portfolio Turnover | 32% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of June 30, 2024) Geographic allocation Country/Geographic Region Percent of France 26.2 ) % Germany 23.9 ) % Netherlands 17.6 ) % United States 10.7 ) % Italy 7.8 ) % Spain 3.7 ) % United Kingdom 2.6 ) % Belgium 2.1 ) % Ireland 1.7 ) % Singapore 1.5 ) % Other # 3.0 ) % Liabilities in Excess of Other Assets (0.8 ) % Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % (a) Excludes short-term securities. # Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other. |
| Largest Holdings [Text Block] | Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % |
| Material Fund Change [Text Block] | Material Fund changes This is a summary of certain changes to the Fund since June 30, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after June 30, 2024 at blackrock.com/fundreports Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 1.99%. |
| Material Fund Change Expenses [Text Block] | Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 1.99%. |
| Updated Prospectus Phone Number | (800) 441-7762 |
| Updated Prospectus Web Address | blackrock.com/fundreports |
| C000199787 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock EuroFund |
| Class Name | Class K Shares |
| Trading Symbol | MKEFX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock EuroFund (the “Fund”) for the period of July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Class K Shares $ 1.03 % |
| Expenses Paid, Amount | $ 109 |
| Expense Ratio, Percent | 1.03% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? European stocks posted a solid gain during the reporting period, but currency translation detracted from returns for U.S.-based investors. The markets benefited from the combination of stable economic growth trends and expectations that central banks would begin to cut interest rates. The peripheral European countries generally outperformed the broader region, while France was a notable laggard. What contributed to performance? The portfolio’s positioning in technology was the largest positive contributor, with semiconductor stocks—including ASML Holding NV and ASM International NV—ranking as top individual contributors thanks to rising chip demand. ASML reported record profits with strong new order bookings. ASM International raised its revenue guidance behind stronger-than-anticipated demand from China and increased sales in the advanced logic and memory sectors. Shares in UniCredit SpA also performed strongly. The Italian bank posted stellar full year 2023 results with a net profit close to €9 billion, beating the market’s expectations. It also remained disciplined with respect to mergers and acquisitions, and it adopted a policy whereby it will distribute 90% of its earnings to shareholders through dividends and share buybacks. What detracted from performance? LVMH Moet Hennessy Louis Vuitton SA was a prominent detractor. Growth rates for the broader luxury sector continued to normalize after a few years of very strong sales. More recently, the stock weakened on concerns about slowing demand in China and Europe. The Dutch payments company Adyen NV also hurt performance. The shares fell sharply in August 2023 after a disappointing earnings update showed a dramatic slowdown in growth amid rising competition. The Fund sold its position in the stock. DSV A/S, a Danish transport and logistics firm, was another detractor of note. The company missed estimates, and investors grew concerned that it would make a large acquisition. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: July 1, 2014 through June 30, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Class K Shares 11.71 % 8.70 % 3.88 % MSCI EMU Index 9.64 % 6.67 % 4.05 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Material Change Date | Jun. 30, 2023 |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 107,406,083 |
| Holdings Count | Holding | 43 |
| Advisory Fees Paid, Amount | $ 689,677 |
| Investment Company Portfolio Turnover | 32% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of June 30, 2024) Geographic allocation Country/Geographic Region Percent of France 26.2 ) % Germany 23.9 ) % Netherlands 17.6 ) % United States 10.7 ) % Italy 7.8 ) % Spain 3.7 ) % United Kingdom 2.6 ) % Belgium 2.1 ) % Ireland 1.7 ) % Singapore 1.5 ) % Other # 3.0 ) % Liabilities in Excess of Other Assets (0.8 ) % Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % (a) Excludes short-term securities. # Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other. |
| Largest Holdings [Text Block] | Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % |
| Material Fund Change [Text Block] | Material Fund changes This is a summary of certain changes to the Fund since June 30, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after June 30, 2024 at blackrock.com/fundreports The net expense ratio decreased from the prior fiscal year end primarily due to a decrease in operating expenses. Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 0.94%. |
| Material Fund Change Expenses [Text Block] | The net expense ratio decreased from the prior fiscal year end primarily due to a decrease in operating expenses. Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 0.94%. |
| Updated Prospectus Phone Number | (800) 441-7762 |
| Updated Prospectus Web Address | blackrock.com/fundreports |
| C000005591 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock EuroFund |
| Class Name | Class R Shares |
| Trading Symbol | MREFX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock EuroFund (the “Fund”) for the period of July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Class R Shares $ 1.59 % |
| Expenses Paid, Amount | $ 168 |
| Expense Ratio, Percent | 1.59% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? European stocks posted a solid gain during the reporting period, but currency translation detracted from returns for U.S.-based investors. The markets benefited from the combination of stable economic growth trends and expectations that central banks would begin to cut interest rates. The peripheral European countries generally outperformed the broader region, while France was a notable laggard. What contributed to performance? The portfolio’s positioning in technology was the largest positive contributor, with semiconductor stocks—including ASML Holding NV and ASM International NV—ranking as top individual contributors thanks to rising chip demand. ASML reported record profits with strong new order bookings. ASM International raised its revenue guidance behind stronger-than-anticipated demand from China and increased sales in the advanced logic and memory sectors. Shares in UniCredit SpA also performed strongly. The Italian bank posted stellar full year 2023 results with a net profit close to €9 billion, beating the market’s expectations. It also remained disciplined with respect to mergers and acquisitions, and it adopted a policy whereby it will distribute 90% of its earnings to shareholders through dividends and share buybacks. What detracted from performance? LVMH Moet Hennessy Louis Vuitton SA was a prominent detractor. Growth rates for the broader luxury sector continued to normalize after a few years of very strong sales. More recently, the stock weakened on concerns about slowing demand in China and Europe. The Dutch payments company Adyen NV also hurt performance. The shares fell sharply in August 2023 after a disappointing earnings update showed a dramatic slowdown in growth amid rising competition. The Fund sold its position in the stock. DSV A/S, a Danish transport and logistics firm, was another detractor of note. The company missed estimates, and investors grew concerned that it would make a large acquisition. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: July 1, 2014 through June 30, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Class R Shares 11.09 % 7.95 % 3.14 % MSCI EMU Index 9.64 % 6.67 % 4.05 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Material Change Date | Jun. 30, 2023 |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 107,406,083 |
| Holdings Count | Holding | 43 |
| Advisory Fees Paid, Amount | $ 689,677 |
| Investment Company Portfolio Turnover | 32% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of June 30, 2024) Geographic allocation Country/Geographic Region Percent of France 26.2 ) % Germany 23.9 ) % Netherlands 17.6 ) % United States 10.7 ) % Italy 7.8 ) % Spain 3.7 ) % United Kingdom 2.6 ) % Belgium 2.1 ) % Ireland 1.7 ) % Singapore 1.5 ) % Other # 3.0 ) % Liabilities in Excess of Other Assets (0.8 ) % Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % (a) Excludes short-term securities. # Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other. |
| Largest Holdings [Text Block] | Ten largest holdings Security Percent of (a) ASML Holding NV 9.1 % LVMH Moet Hennessy Louis Vuitton SE 5.7 % Schneider Electric SE 5.6 % SAP SE 5.1 % Siemens AG, Class N 4.4 % ASM International NV 4.3 % Hermes International SCA 4.3 % UniCredit SpA 3.9 % MTU Aero Engines AG, Class N 3.5 % Safran SA 3.2 % |
| Material Fund Change [Text Block] | Material Fund changes This is a summary of certain changes to the Fund since June 30, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after June 30, 2024 at blackrock.com/fundreports The net expense ratio decreased from the prior fiscal year end primarily due to a decrease in operating expenses. Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 1.49%. |
| Material Fund Change Expenses [Text Block] | The net expense ratio decreased from the prior fiscal year end primarily due to a decrease in operating expenses. Effective June 1, 2024, BlackRock Advisors LLC, the Fund’s investment adviser, voluntarily agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding dividend expense, interest expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business. The expense limitation as a percentage of average daily net assets is 1.49%. |
| Updated Prospectus Phone Number | (800) 441-7762 |
| Updated Prospectus Web Address | blackrock.com/fundreports |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 60 Months Ended | 120 Months Ended | ||||||||||
| Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2014 | |
| C000005590 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Institutional Shares | ||||||||||||
| Account Value | $ 14,533 | $ 14,533 | $ 14,533 | $ 13,016 | $ 9,862 | $ 13,665 | $ 9,614 | $ 9,629 | $ 9,809 | $ 9,506 | $ 8,323 | $ 9,590 | $ 10,000 |
| Average Annual Return, Percent | 11.65% | 8.58% | 3.81% | ||||||||||
| C000005587 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor A Shares (with sales charge) | ||||||||||||
| Average Annual Return, Percent | 5.51% | 7.18% | 3.03% | ||||||||||
| C000005587 [Member] | Without Sales Load [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor A Shares | ||||||||||||
| Account Value | $ 13,473 | $ 13,473 | $ 13,473 | 12,099 | 9,189 | 12,762 | 8,997 | 9,024 | 9,215 | 8,945 | 7,852 | 9,068 | 9,475 |
| Average Annual Return, Percent | 11.36% | 8.35% | 3.58% | ||||||||||
| C000005589 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor C Shares (with sales charge) | ||||||||||||
| Average Annual Return, Percent | 9.52% | 7.52% | 2.93% | ||||||||||
| C000005589 [Member] | Without Sales Load [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor C Shares | ||||||||||||
| Account Value | $ 13,352 | $ 13,352 | $ 13,352 | 11,990 | 9,106 | 12,743 | 9,050 | 9,153 | 9,418 | 9,219 | 8,155 | 9,491 | 10,000 |
| Average Annual Return, Percent | 10.52% | 7.52% | 2.93% | ||||||||||
| C000199787 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Class K Shares | ||||||||||||
| Account Value | $ 14,640 | $ 14,640 | $ 14,640 | 13,105 | 9,922 | 13,740 | 9,652 | 9,649 | 9,816 | 9,506 | 8,323 | 9,590 | 10,000 |
| Average Annual Return, Percent | 11.71% | 8.70% | 3.88% | ||||||||||
| C000005591 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Class R Shares | ||||||||||||
| Account Value | $ 13,622 | $ 13,622 | $ 13,622 | 12,263 | 9,336 | 13,039 | 9,221 | 9,292 | 9,545 | 9,317 | 8,214 | 9,532 | 10,000 |
| Average Annual Return, Percent | 11.09% | 7.95% | 3.14% | ||||||||||
| MSCI EMU Index [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | MSCI EMU Index | ||||||||||||
| Account Value | $ 14,870 | $ 14,870 | $ 14,870 | $ 13,563 | $ 10,474 | $ 13,786 | $ 10,028 | $ 10,765 | $ 10,816 | $ 10,229 | $ 7,982 | $ 9,070 | $ 10,000 |
| Average Annual Return, Percent | 9.64% | 6.67% | 4.05% |
| Shareholder Report, Holdings (Details) | Jun. 30, 2024 | |
| C000005590 [Member] | ASML Holding NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | [1] |
| C000005590 [Member] | LVMH Moet Hennessy Louis Vuitton SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.70% | [1] |
| C000005590 [Member] | Schneider Electric SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.60% | [1] |
| C000005590 [Member] | SAP SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.10% | [1] |
| C000005590 [Member] | Siemens AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | [1] |
| C000005590 [Member] | ASM International NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [1] |
| C000005590 [Member] | Hermes International SCA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [1] |
| C000005590 [Member] | UniCredit SpA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.90% | [1] |
| C000005590 [Member] | MTU Aero Engines AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.50% | [1] |
| C000005590 [Member] | Safran SA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [1] |
| C000005590 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [2] |
| C000005590 [Member] | BELGIUM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.10% | |
| C000005590 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.90% | |
| C000005590 [Member] | SPAIN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.70% | |
| C000005590 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.20% | |
| C000005590 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | |
| C000005590 [Member] | IRELAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | |
| C000005590 [Member] | ITALY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.80% | |
| C000005590 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.60% | |
| C000005590 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | |
| C000005590 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.70% | |
| C000005590 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.80%) | |
| C000005587 [Member] | ASML Holding NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | [3] |
| C000005587 [Member] | LVMH Moet Hennessy Louis Vuitton SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.70% | [3] |
| C000005587 [Member] | Schneider Electric SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.60% | [3] |
| C000005587 [Member] | SAP SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.10% | [3] |
| C000005587 [Member] | Siemens AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | [3] |
| C000005587 [Member] | ASM International NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [3] |
| C000005587 [Member] | Hermes International SCA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [3] |
| C000005587 [Member] | UniCredit SpA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.90% | [3] |
| C000005587 [Member] | MTU Aero Engines AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.50% | [3] |
| C000005587 [Member] | Safran SA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [3] |
| C000005587 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [4] |
| C000005587 [Member] | BELGIUM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.10% | |
| C000005587 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.90% | |
| C000005587 [Member] | SPAIN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.70% | |
| C000005587 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.20% | |
| C000005587 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | |
| C000005587 [Member] | IRELAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | |
| C000005587 [Member] | ITALY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.80% | |
| C000005587 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.60% | |
| C000005587 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | |
| C000005587 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.70% | |
| C000005587 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.80%) | |
| C000005589 [Member] | ASML Holding NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | [5] |
| C000005589 [Member] | LVMH Moet Hennessy Louis Vuitton SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.70% | [5] |
| C000005589 [Member] | Schneider Electric SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.60% | [5] |
| C000005589 [Member] | SAP SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.10% | [5] |
| C000005589 [Member] | Siemens AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | [5] |
| C000005589 [Member] | ASM International NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [5] |
| C000005589 [Member] | Hermes International SCA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [5] |
| C000005589 [Member] | UniCredit SpA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.90% | [5] |
| C000005589 [Member] | MTU Aero Engines AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.50% | [5] |
| C000005589 [Member] | Safran SA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [5] |
| C000005589 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [6] |
| C000005589 [Member] | BELGIUM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.10% | |
| C000005589 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.90% | |
| C000005589 [Member] | SPAIN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.70% | |
| C000005589 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.20% | |
| C000005589 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | |
| C000005589 [Member] | IRELAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | |
| C000005589 [Member] | ITALY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.80% | |
| C000005589 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.60% | |
| C000005589 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | |
| C000005589 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.70% | |
| C000005589 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.80%) | |
| C000199787 [Member] | ASML Holding NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | [7] |
| C000199787 [Member] | LVMH Moet Hennessy Louis Vuitton SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.70% | [7] |
| C000199787 [Member] | Schneider Electric SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.60% | [7] |
| C000199787 [Member] | SAP SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.10% | [7] |
| C000199787 [Member] | Siemens AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | [7] |
| C000199787 [Member] | ASM International NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [7] |
| C000199787 [Member] | Hermes International SCA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [7] |
| C000199787 [Member] | UniCredit SpA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.90% | [7] |
| C000199787 [Member] | MTU Aero Engines AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.50% | [7] |
| C000199787 [Member] | Safran SA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [7] |
| C000199787 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [8] |
| C000199787 [Member] | BELGIUM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.10% | |
| C000199787 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.90% | |
| C000199787 [Member] | SPAIN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.70% | |
| C000199787 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.20% | |
| C000199787 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | |
| C000199787 [Member] | IRELAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | |
| C000199787 [Member] | ITALY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.80% | |
| C000199787 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.60% | |
| C000199787 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | |
| C000199787 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.70% | |
| C000199787 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.80%) | |
| C000005591 [Member] | ASML Holding NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | [9] |
| C000005591 [Member] | LVMH Moet Hennessy Louis Vuitton SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.70% | [9] |
| C000005591 [Member] | Schneider Electric SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.60% | [9] |
| C000005591 [Member] | SAP SE [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.10% | [9] |
| C000005591 [Member] | Siemens AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | [9] |
| C000005591 [Member] | ASM International NV [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [9] |
| C000005591 [Member] | Hermes International SCA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [9] |
| C000005591 [Member] | UniCredit SpA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.90% | [9] |
| C000005591 [Member] | MTU Aero Engines AG Class N [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.50% | [9] |
| C000005591 [Member] | Safran SA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [9] |
| C000005591 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [10] |
| C000005591 [Member] | BELGIUM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.10% | |
| C000005591 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.90% | |
| C000005591 [Member] | SPAIN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.70% | |
| C000005591 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.20% | |
| C000005591 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | |
| C000005591 [Member] | IRELAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | |
| C000005591 [Member] | ITALY | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.80% | |
| C000005591 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.60% | |
| C000005591 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | |
| C000005591 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.70% | |
| C000005591 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.80%) | |
| [1]Excludes short-term securities.[2]Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other.[3]Excludes short-term securities.[4]Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other.[5]Excludes short-term securities.[6]Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other.[7]Excludes short-term securities.[8]Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other.[9]Excludes short-term securities.[10]Ten largest country/geographic regions are presented. Additional country/geographic regions are found in Other. | ||
