| Form N-CSR Cover | 6 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Morgan Stanley Variable Insurance Fund, Inc. |
| Entity Central Index Key | 0001011378 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 6 Months Ended |
| Jun. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Morgan Stanley Variable Insurance Fund, Inc. |
| Entity Central Index Key | 0001011378 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| C000011741 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Discovery Portfolio |
| Class Name | I |
| Trading Symbol | MMGPX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Discovery Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $47 0.94% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 47 |
| Expense Ratio, Percent | 0.94% |
| AssetsNet | $ 154,397,055 |
| Holdings Count | Holding | 44 |
| InvestmentCompanyPortfolioTurnover | 31% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $154,397,055 # of Portfolio Holdings 44 Portfolio Turnover Rate 31% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Industrials 1.8% Consumer Staples 2.4% Investment Companies 2.5% Short-Term Investments 4.5% Communication Services 4.9% Health Care 13.7% Consumer Discretionary 25.0% Information Technology 45.2% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B29"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011740 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Discovery Portfolio |
| Class Name | II |
| Trading Symbol | MMGTX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Discovery Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B39"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II $52 1.04% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 52 |
| Expense Ratio, Percent | 1.04% |
| AssetsNet | $ 154,397,055 |
| Holdings Count | Holding | 44 |
| InvestmentCompanyPortfolioTurnover | 31% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $154,397,055 # of Portfolio Holdings 44 Portfolio Turnover Rate 31% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Industrials 1.8% Consumer Staples 2.4% Investment Companies 2.5% Short-Term Investments 4.5% Communication Services 4.9% Health Care 13.7% Consumer Discretionary 25.0% Information Technology 45.2% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B49"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011754 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Emerging Markets Equity Portfolio |
| Class Name | I |
| Trading Symbol | MEMEX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Emerging Markets Equity Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B59"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $65 1.24% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 65 |
| Expense Ratio, Percent | 1.24% |
| AssetsNet | $ 167,178,355 |
| Holdings Count | Holding | 99 |
| InvestmentCompanyPortfolioTurnover | 21% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $167,178,355 # of Portfolio Holdings 99 Portfolio Turnover Rate 21% |
| Holdings [Text Block] | Country Weightings (% of total investments) Value Value Other Footnote Reference 0.7% United States 1.1% United Kingdom 1.2% Thailand 1.5% Saudi Arabia 1.6% Poland 2.5% Indonesia 2.8% South Africa 3.2% Mexico 4.6% Brazil 6.2% Korea, Republic Of 11.8% Taiwan 18.6% China 19.2% India 25.0% Footnote Description Footnote 1 Represents investments in countries less than 1% of total investments. |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B69"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011753 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Emerging Markets Equity Portfolio |
| Class Name | II |
| Trading Symbol | MSMBX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Emerging Markets Equity Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B79"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II $68 1.29% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 68 |
| Expense Ratio, Percent | 1.29% |
| AssetsNet | $ 167,178,355 |
| Holdings Count | Holding | 99 |
| InvestmentCompanyPortfolioTurnover | 21% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $167,178,355 # of Portfolio Holdings 99 Portfolio Turnover Rate 21% |
| Holdings [Text Block] | Country Weightings (% of total investments) Value Value Other Footnote Reference 0.7% United States 1.1% United Kingdom 1.2% Thailand 1.5% Saudi Arabia 1.6% Poland 2.5% Indonesia 2.8% South Africa 3.2% Mexico 4.6% Brazil 6.2% Korea, Republic Of 11.8% Taiwan 18.6% China 19.2% India 25.0% Footnote Description Footnote 1 Represents investments in countries less than 1% of total investments. |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B89"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000134832 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Global Infrastructure Portfolio |
| Class Name | I |
| Trading Symbol | MBGIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Global Infrastructure Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B99"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $43 0.87% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 43 |
| Expense Ratio, Percent | 0.87% |
| AssetsNet | $ 67,772,326 |
| Holdings Count | Holding | 58 |
| InvestmentCompanyPortfolioTurnover | 24% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $67,772,326 # of Portfolio Holdings 58 Portfolio Turnover Rate 24% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Communication Services 3.1% Short-Term Investments 4.2% Financials 9.2% Industrials 17.7% Energy 25.7% Utilities 40.1% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B109"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000134833 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Global Infrastructure Portfolio |
| Class Name | II |
| Trading Symbol | MPIIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Global Infrastructure Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B119"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II $56 1.12% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 56 |
| Expense Ratio, Percent | 1.12% |
| AssetsNet | $ 67,772,326 |
| Holdings Count | Holding | 58 |
| InvestmentCompanyPortfolioTurnover | 24% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $67,772,326 # of Portfolio Holdings 58 Portfolio Turnover Rate 24% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Communication Services 3.1% Short-Term Investments 4.2% Financials 9.2% Industrials 17.7% Energy 25.7% Utilities 40.1% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B129"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000028284 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Global Real Estate Portfolio |
| Class Name | II |
| Trading Symbol | MGETX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Global Real Estate Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B139"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II $54 1.10% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 54 |
| Expense Ratio, Percent | 1.10% |
| AssetsNet | $ 32,876,582 |
| Holdings Count | Holding | 81 |
| InvestmentCompanyPortfolioTurnover | 26% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $32,876,582 # of Portfolio Holdings 81 Portfolio Turnover Rate 26% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Short-Term Investments 0.3% Consumer Discretionary 0.9% Health Care 2.0% Real Estate 40.7% Financials 56.1% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B149"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011764 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Global Strategist Portfolio |
| Class Name | I |
| Trading Symbol | MIMPX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Global Strategist Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B159"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $45 0.88% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 45 |
| Expense Ratio, Percent | 0.88% |
| AssetsNet | $ 83,537,235 |
| Holdings Count | Holding | 1,484 |
| InvestmentCompanyPortfolioTurnover | 49% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $83,537,235 # of Portfolio Holdings 1,484 Portfolio Turnover Rate 49% |
| Holdings [Text Block] | Geographic Allocation (% of total investments) Value Value South America 1.5% Australia 1.6% Africa 3.0% Asia 9.7% Europe 23.8% North America 60.4% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B169"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000097939 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Global Strategist Portfolio |
| Class Name | II |
| Trading Symbol | MGTPX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Global Strategist Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B179"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II $50 0.98% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 50 |
| Expense Ratio, Percent | 0.98% |
| AssetsNet | $ 83,537,235 |
| Holdings Count | Holding | 1,484 |
| InvestmentCompanyPortfolioTurnover | 49% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $83,537,235 # of Portfolio Holdings 1,484 Portfolio Turnover Rate 49% |
| Holdings [Text Block] | Geographic Allocation (% of total investments) Value Value South America 1.5% Australia 1.6% Africa 3.0% Asia 9.7% Europe 23.8% North America 60.4% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B189"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011757 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Growth Portfolio |
| Class Name | I |
| Trading Symbol | MEGIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Growth Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B199"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $28 0.56% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 28 |
| Expense Ratio, Percent | 0.56% |
| AssetsNet | $ 482,128,873 |
| Holdings Count | Holding | 42 |
| InvestmentCompanyPortfolioTurnover | 18% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $482,128,873 # of Portfolio Holdings 42 Portfolio Turnover Rate 18% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Investment Companies 2.5% Financials 3.7% Short-Term Investments 4.7% Industrials 4.7% Communication Services 4.9% Health Care 8.4% Consumer Discretionary 27.3% Information Technology 43.8% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B209"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011758 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Growth Portfolio |
| Class Name | II |
| Trading Symbol | MEGTX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Growth Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B219"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II $40 0.81% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 40 |
| Expense Ratio, Percent | 0.81% |
| AssetsNet | $ 482,128,873 |
| Holdings Count | Holding | 42 |
| InvestmentCompanyPortfolioTurnover | 18% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $482,128,873 # of Portfolio Holdings 42 Portfolio Turnover Rate 18% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Investment Companies 2.5% Financials 3.7% Short-Term Investments 4.7% Industrials 4.7% Communication Services 4.9% Health Care 8.4% Consumer Discretionary 27.3% Information Technology 43.8% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B229"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011749 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - U.S. Real Estate Portfolio |
| Class Name | I |
| Trading Symbol | MUSRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - U.S. Real Estate Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B239"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $40 0.80% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 40 |
| Expense Ratio, Percent | 0.80% |
| AssetsNet | $ 253,059,781 |
| Holdings Count | Holding | 35 |
| InvestmentCompanyPortfolioTurnover | 23% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $253,059,781 # of Portfolio Holdings 35 Portfolio Turnover Rate 23% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Consumer Discretionary 0.9% Short-Term Investments 1.0% Health Care 1.3% Real Estate 28.4% Financials 68.4% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B249"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011748 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - U.S. Real Estate Portfolio |
| Class Name | II |
| Trading Symbol | MSRBX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - U.S. Real Estate Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B259"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II $52 1.05% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 52 |
| Expense Ratio, Percent | 1.05% |
| AssetsNet | $ 253,059,781 |
| Holdings Count | Holding | 35 |
| InvestmentCompanyPortfolioTurnover | 23% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $253,059,781 # of Portfolio Holdings 35 Portfolio Turnover Rate 23% |
| Holdings [Text Block] | Sector Allocation (% of total investments) Value Value Consumer Discretionary 0.9% Short-Term Investments 1.0% Health Care 1.3% Real Estate 28.4% Financials 68.4% |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B269"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011752 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Emerging Markets Debt Portfolio |
| Class Name | I |
| Trading Symbol | MEMNX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Emerging Markets Debt Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B279"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $56 1.09% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 56 |
| Expense Ratio, Percent | 1.09% |
| AssetsNet | $ 103,551,756 |
| Holdings Count | Holding | 240 |
| InvestmentCompanyPortfolioTurnover | 89% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $103,551,756 # of Portfolio Holdings 240 Portfolio Turnover Rate 89% |
| Holdings [Text Block] | Credit Quality (% of net assets) Footnote Reference Value Value Cash & Equivalents 1.8% Not Rated 3.1% CCC or Lower 16.8% B 34.8% BB 28.0% BBB 14.1% A 1.0% AA 0.3% AAA 0.2% Footnote Description Footnote * Security ratings disclosed with the exception for those labeled “not rated” is an aggregation of the highest security level rating amongst S&P Global Ratings, Moody’s Investors Services, Inc., and Fitch Ratings, each a Nationally Recognized Statistical Ratings Organization (“NRSRO”). |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B289"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| C000011751 | |
| Shareholder Report [Line Items] | |
| Fund Name | Morgan Stanley Variable Insurance Fund, Inc. - Emerging Markets Debt Portfolio |
| Class Name | II |
| Trading Symbol | MBDBX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Morgan Stanley Variable Insurance Fund, Inc. - Emerging Markets Debt Portfolio for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.morganstanley.com/im/shareholderreports |
| Additional Information Phone Number | 1-800-869-6397 |
| Additional Information Website | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B299"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? Footnote Reference (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II $58 1.14% Footnote Description Footnote 1 Does not reflect fees and expenses imposed by your insurance company. You may pay fees other than the fees and expenses of the Fund, such as brokerage commissions and other fees charged by financial intermediaries. |
| Expenses Paid, Amount | $ 58 |
| Expense Ratio, Percent | 1.14% |
| AssetsNet | $ 103,551,756 |
| Holdings Count | Holding | 240 |
| InvestmentCompanyPortfolioTurnover | 89% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $103,551,756 # of Portfolio Holdings 240 Portfolio Turnover Rate 89% |
| Holdings [Text Block] | Credit Quality (% of net assets) Footnote Reference Value Value Cash & Equivalents 1.8% Not Rated 3.1% CCC or Lower 16.8% B 34.8% BB 28.0% BBB 14.1% A 1.0% AA 0.3% AAA 0.2% Footnote Description Footnote * Security ratings disclosed with the exception for those labeled “not rated” is an aggregation of the highest security level rating amongst S&P Global Ratings, Moody’s Investors Services, Inc., and Fitch Ratings, each a Nationally Recognized Statistical Ratings Organization (“NRSRO”). |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.morganstanley.com/im/shareholderreports</span>" id="sjs-B309"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.morganstanley.com/im/shareholderreports</span> |
| Shareholder Report, Holdings (Details) | Jun. 30, 2024 |
| C000011741 | Cloudflare, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.20% |
| C000011741 | Trade Desk, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.40% |
| C000011741 | DoorDash, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.90% |
| C000011741 | Global-e Online Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.30% |
| C000011741 | Affirm Holdings, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.30% |
| C000011741 | Samsara, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000011741 | ROBLOX Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000011741 | Royalty Pharma PLC | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.50% |
| C000011741 | Carvana Co. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.10% |
| C000011741 | Adyen NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000011741 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| C000011741 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.40% |
| C000011741 | SectorInvestment Companies | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011741 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.50% |
| C000011741 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000011741 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.70% |
| C000011741 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25% |
| C000011741 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 45.20% |
| C000011740 | Cloudflare, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.20% |
| C000011740 | Trade Desk, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.40% |
| C000011740 | DoorDash, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.90% |
| C000011740 | Global-e Online Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.30% |
| C000011740 | Affirm Holdings, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.30% |
| C000011740 | Samsara, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000011740 | ROBLOX Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000011740 | Royalty Pharma PLC | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.50% |
| C000011740 | Carvana Co. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.10% |
| C000011740 | Adyen NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000011740 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| C000011740 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.40% |
| C000011740 | SectorInvestment Companies | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011740 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.50% |
| C000011740 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000011740 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.70% |
| C000011740 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25% |
| C000011740 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 45.20% |
| C000011754 | Taiwan Semiconductor Manufacturing Co. Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 10.50% |
| C000011754 | Tencent Holdings Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.20% |
| C000011754 | Samsung Electronics Co. Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.10% |
| C000011754 | SK Hynix, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000011754 | Mahindra & Mahindra Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.80% |
| C000011754 | ICICI Bank Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011754 | Reliance Industries Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011754 | Alibaba Group Holding Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2% |
| C000011754 | China Construction Bank Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2% |
| C000011754 | Hon Hai Precision Industry Co. Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.90% |
| C000011754 | Country Other Line | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.70% |
| C000011754 | United States | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.10% |
| C000011754 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.20% |
| C000011754 | Thailand | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000011754 | Saudi Arabia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000011754 | Poland | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011754 | Indonesia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.80% |
| C000011754 | South Africa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000011754 | Mexico | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.60% |
| C000011754 | Brazil | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.20% |
| C000011754 | Korea, Republic Of | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.80% |
| C000011754 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Total Investments | 18.60% |
| C000011754 | China | |
| Holdings [Line Items] | |
| Percent of Total Investments | 19.20% |
| C000011754 | India | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25% |
| C000011753 | Taiwan Semiconductor Manufacturing Co. Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 10.50% |
| C000011753 | Tencent Holdings Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.20% |
| C000011753 | Samsung Electronics Co. Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.10% |
| C000011753 | SK Hynix, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000011753 | Mahindra & Mahindra Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.80% |
| C000011753 | ICICI Bank Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011753 | Reliance Industries Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011753 | Alibaba Group Holding Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2% |
| C000011753 | China Construction Bank Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2% |
| C000011753 | Hon Hai Precision Industry Co. Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.90% |
| C000011753 | Country Other Line | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.70% |
| C000011753 | United States | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.10% |
| C000011753 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.20% |
| C000011753 | Thailand | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000011753 | Saudi Arabia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000011753 | Poland | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011753 | Indonesia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.80% |
| C000011753 | South Africa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000011753 | Mexico | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.60% |
| C000011753 | Brazil | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.20% |
| C000011753 | Korea, Republic Of | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.80% |
| C000011753 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Total Investments | 18.60% |
| C000011753 | China | |
| Holdings [Line Items] | |
| Percent of Total Investments | 19.20% |
| C000011753 | India | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25% |
| C000134832 | National Grid PLC | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.50% |
| C000134832 | American Tower Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.10% |
| C000134832 | GFL Environmental, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.40% |
| C000134832 | Enbridge, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5% |
| C000134832 | ONEOK, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4% |
| C000134832 | Pembina Pipeline Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.70% |
| C000134832 | Sempra | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.60% |
| C000134832 | Targa Resources Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.60% |
| C000134832 | Grupo Aeroportuario del Pacifico SAB de CV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000134832 | Cheniere Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.80% |
| C000134832 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 17.70% |
| C000134832 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.20% |
| C000134832 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000134832 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.20% |
| C000134832 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25.70% |
| C000134832 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 40.10% |
| C000134833 | National Grid PLC | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.50% |
| C000134833 | American Tower Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.10% |
| C000134833 | GFL Environmental, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.40% |
| C000134833 | Enbridge, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5% |
| C000134833 | ONEOK, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4% |
| C000134833 | Pembina Pipeline Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.70% |
| C000134833 | Sempra | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.60% |
| C000134833 | Targa Resources Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.60% |
| C000134833 | Grupo Aeroportuario del Pacifico SAB de CV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000134833 | Cheniere Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.80% |
| C000134833 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 17.70% |
| C000134833 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.20% |
| C000134833 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000134833 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.20% |
| C000134833 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25.70% |
| C000134833 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 40.10% |
| C000028284 | Welltower, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.60% |
| C000028284 | Equinix, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.50% |
| C000028284 | AvalonBay Communities, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000028284 | Prologis, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.50% |
| C000028284 | Digital Realty Trust, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.90% |
| C000028284 | Goodman Group | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.60% |
| C000028284 | Public Storage | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000028284 | Simon Property Group, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.40% |
| C000028284 | Extra Space Storage, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.70% |
| C000028284 | American Homes 4 Rent | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.60% |
| C000028284 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.30% |
| C000028284 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2% |
| C000028284 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.90% |
| C000028284 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 56.10% |
| C000028284 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Total Investments | 40.70% |
| C000011764 | China Government Bond | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000011764 | U.S. Treasury Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000011764 | Federal National Mortgage Association | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000011764 | Republic of South Africa Government Bond | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000011764 | Bundesrepublik Deutschland Bundesanleihe | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000011764 | Microsoft Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000011764 | NVIDIA Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000011764 | Apple, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000011764 | United Kingdom Gilt | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000011764 | Brazil Notas do Tesouro Nacional | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000011764 | South America | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000011764 | Australia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000011764 | Africa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| C000011764 | Asia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.70% |
| C000011764 | Europe | |
| Holdings [Line Items] | |
| Percent of Total Investments | 23.80% |
| C000011764 | North America | |
| Holdings [Line Items] | |
| Percent of Total Investments | 60.40% |
| C000097939 | China Government Bond | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000097939 | U.S. Treasury Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000097939 | Federal National Mortgage Association | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000097939 | Republic of South Africa Government Bond | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000097939 | Bundesrepublik Deutschland Bundesanleihe | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000097939 | Microsoft Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000097939 | NVIDIA Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000097939 | Apple, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000097939 | United Kingdom Gilt | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000097939 | Brazil Notas do Tesouro Nacional | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000097939 | South America | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000097939 | Australia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000097939 | Africa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| C000097939 | Asia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.70% |
| C000097939 | Europe | |
| Holdings [Line Items] | |
| Percent of Total Investments | 23.80% |
| C000097939 | North America | |
| Holdings [Line Items] | |
| Percent of Total Investments | 60.40% |
| C000011757 | Cloudflare, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.30% |
| C000011757 | Trade Desk, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.50% |
| C000011757 | DoorDash, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7% |
| C000011757 | Affirm Holdings, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011757 | ROBLOX Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000011757 | Royalty Pharma PLC | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.60% |
| C000011757 | Shopify, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6% |
| C000011757 | Tesla, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.60% |
| C000011757 | Snowflake, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.80% |
| C000011757 | Airbnb, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011757 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011757 | SectorInvestment Companies | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011757 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011757 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000011757 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.40% |
| C000011757 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 27.30% |
| C000011757 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 43.80% |
| C000011757 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.70% |
| C000011758 | Cloudflare, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.30% |
| C000011758 | Trade Desk, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.50% |
| C000011758 | DoorDash, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7% |
| C000011758 | Affirm Holdings, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011758 | ROBLOX Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000011758 | Royalty Pharma PLC | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.60% |
| C000011758 | Shopify, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6% |
| C000011758 | Tesla, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.60% |
| C000011758 | Snowflake, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.80% |
| C000011758 | Airbnb, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011758 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011758 | SectorInvestment Companies | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000011758 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011758 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000011758 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.40% |
| C000011758 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 27.30% |
| C000011758 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Total Investments | 43.80% |
| C000011758 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.70% |
| C000011749 | Welltower, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.30% |
| C000011749 | Equinix, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.50% |
| C000011749 | AvalonBay Communities, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.40% |
| C000011749 | Prologis, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.40% |
| C000011749 | Digital Realty Trust, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.60% |
| C000011749 | Public Storage | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011749 | Simon Property Group, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.80% |
| C000011749 | Extra Space Storage, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011749 | American Homes 4 Rent | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.90% |
| C000011749 | Iron Mountain, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4% |
| C000011749 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1% |
| C000011749 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| C000011749 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.90% |
| C000011749 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 68.40% |
| C000011749 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Total Investments | 28.40% |
| C000011748 | Welltower, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.30% |
| C000011748 | Equinix, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.50% |
| C000011748 | AvalonBay Communities, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.40% |
| C000011748 | Prologis, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.40% |
| C000011748 | Digital Realty Trust, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.60% |
| C000011748 | Public Storage | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011748 | Simon Property Group, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.80% |
| C000011748 | Extra Space Storage, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000011748 | American Homes 4 Rent | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.90% |
| C000011748 | Iron Mountain, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4% |
| C000011748 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1% |
| C000011748 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| C000011748 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.90% |
| C000011748 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Total Investments | 68.40% |
| C000011748 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Total Investments | 28.40% |
| C000011752 | Cash & Equivalents | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000011752 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000011752 | CCC or Lower | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000011752 | B | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 34.80% |
| C000011752 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28% |
| C000011752 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| C000011752 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000011752 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000011752 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000011752 | AssetWarrants | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0% |
| C000011752 | AssetU.S. Treasury Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.20% |
| C000011752 | AssetSenior Loan Interest | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.80% |
| C000011752 | AssetCorporate Bonds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25.80% |
| C000011752 | AssetSovereign | |
| Holdings [Line Items] | |
| Percent of Total Investments | 69.20% |
| C000011751 | Cash & Equivalents | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000011751 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000011751 | CCC or Lower | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000011751 | B | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 34.80% |
| C000011751 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28% |
| C000011751 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| C000011751 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000011751 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000011751 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000011751 | AssetWarrants | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0% |
| C000011751 | AssetU.S. Treasury Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.20% |
| C000011751 | AssetSenior Loan Interest | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.80% |
| C000011751 | AssetCorporate Bonds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25.80% |
| C000011751 | AssetSovereign | |
| Holdings [Line Items] | |
| Percent of Total Investments | 69.20% |
