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Ivy VIP Science and Technology  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Ivy VIP Science and Technology
Objective [Heading] rr_ObjectiveHeading Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
To seek to provide growth of capital.
Expense [Heading] rr_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. The table below does not reflect any fees and expenses imposed under the variable life insurance policies and variable annuity contracts (collectively, Policies) through which this Portfolio is offered. See the Policy prospectus for a description of those fees and expenses.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Portfolio Operating Expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination April 30, 2022
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in annual portfolio operating expenses or in the example, affect the Portfolio’s performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was 8% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 8.00%
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This example is intended to help you compare the cost of investing in the shares of the Portfolio with the cost of investing in other portfolios. This example does not reflect any fees and expenses imposed under the Policies.
The example assumes that you invest $10,000 in the particular class of shares of the Portfolio for the time periods indicated. The example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. The costs are the same for each time period if you continue to hold your shares or if you redeem all your shares at the end of those periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Ivy VIP Science and Technology invests primarily in the equity securities of science and technology companies around the globe. Under normal circumstances, the Portfolio invests at least 80% of its net assets in securities of science or technology companies. Such companies may include companies that, in the opinion of Ivy Investment Management Company (IICO), the Portfolio’s investment manager, derive a competitive advantage by the application of scientific or technological developments or discoveries to grow their business or increase their competitive advantage. Science and technology companies are companies whose products, processes or services, in the opinion of IICO, are being, or are expected to be, significantly benefited by the use or commercial application of scientific or technological developments or
discoveries. The Portfolio also may invest in companies that utilize science and/or technology as an agent of change to significantly enhance their business opportunities (applied science and technology companies). The Portfolio may invest in securities issued by companies of any size, and may invest without limitation in foreign securities, including securities of issuers within emerging markets.
The Portfolio is non-diversified, meaning that it may invest a significant portion of its total assets in a limited number of issuers.
IICO typically emphasizes growth potential in selecting stocks; that is, IICO seeks companies in which earnings are likely to grow faster than the economy. IICO aims to identify strong secular trends within industries and then applies a largely bottom-up (researching individual issuers) stock selection process by considering a number of factors in selecting securities for the Portfolio. These may include but are not limited to a company’s growth potential, earnings potential, quality of management, valuation, financial statements, industry position/market size potential and applicable economic and market conditions, as well as whether a company’s products and services have high barriers to entry. The Portfolio typically holds a limited number of stocks (generally 35 to 60).
Many of the companies in which the Portfolio may invest have diverse operations, with products or services in foreign markets. Therefore, the Portfolio may have indirect exposure to various foreign markets through investments in these companies, even if the Portfolio is not invested directly in such markets.
Generally, in determining whether to sell a security, IICO uses the same type of analysis that it uses in buying securities in order to determine whether the security has ceased to offer significant growth potential, has become overvalued and/or whether the company prospects of the issuer have deteriorated due to a change in management, change in strategy and/or a change in its financial characteristics. IICO also may sell a security to reduce the Portfolio’s holding in that security, to take advantage of what it believes are more attractive investment opportunities, when a security’s valuation reaches IICO’s fair value targets, or to raise cash.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Ivy VIP Science and Technology invests primarily in the equity securities of science and technology companies around the globe. Under normal circumstances, the Portfolio invests at least 80% of its net assets in securities of science or technology companies. Such companies may include companies that, in the opinion of Ivy Investment Management Company (IICO), the Portfolio’s investment manager, derive a competitive advantage by the application of scientific or technological developments or discoveries to grow their business or increase their competitive advantage. Science and technology companies are companies whose products, processes or services, in the opinion of IICO, are being, or are expected to be, significantly benefited by the use or commercial application of scientific or technological developments or discoveries.
Risk [Heading] rr_RiskHeading Principal Investment Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
As with any mutual fund, the value of the Portfolio’s shares will change, and you could lose money on your investment. The Portfolio is not intended as a complete investment program.
A variety of factors can affect the investment performance of the Portfolio and prevent it from achieving its objective. These include:
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Company Risk.
A company may be more volatile or perform worse than the overall market due to specific factors, such as adverse changes to its business or investor perceptions about the company.
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Concentration Risk.
Because the Portfolio invests more than 25% of its total assets in the science and technology-related industry, the Portfolio’s performance may be more susceptible to a single economic, regulatory or technological occurrence than a fund that does not concentrate its investments in this industry. Securities of companies within specific industries or sectors of the economy may periodically perform differently than the overall market. In addition, the Portfolio’s performance may be more volatile than an investment in a portfolio of broad market securities and may underperform the market as a whole, due to the relatively limited number of issuers of science and technology-related securities.
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Emerging Market Risk.
Investments in countries with emerging economies or securities markets may carry greater risk than investments in more developed countries. Political and economic structures in many such countries may be undergoing significant evolution and rapid development, and such countries may lack the social, political and economic stability characteristics of more developed countries. Investments in securities issued in these countries may be more volatile and less liquid than securities issued in more developed countries. Emerging markets are more susceptible to capital controls, governmental interference, local taxes being imposed on international investments, restrictions on gaining access to sales proceeds, and less efficient trading markets.
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Foreign Exposure Risk.
The securities of many companies may have significant exposure to foreign markets as a result of the company’s operations, products or services in those foreign markets. As a result, a company’s domicile and/or the markets in which the company’s securities trade may not be fully reflective of its sources of revenue. Such securities would be subject to some of the same risks as an investment in foreign securities, including the risk that political and economic events unique to a country or region will adversely affect those markets in which the company’s products or services are sold.
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Foreign Securities Risk.
Investing in foreign securities involves a number of economic, financial, legal and political considerations that are not associated with the U.S. markets and that could affect the Portfolio’s performance unfavorably, depending upon the prevailing conditions at any given time. Among these potential risks are: greater price volatility; comparatively weak supervision and regulation of securities exchanges, brokers and issuers; higher brokerage costs; social, political or economic instability; fluctuations in foreign currency exchange rates and related
  conversion costs or currency redenomination; nationalization or expropriation of assets; adverse foreign tax consequences; different and/or less stringent financial reporting standards; and settlement, custodial or other operational delays. The risks may be exacerbated in connection with investments in emerging markets.
  World markets, or those in a particular region, all may react in similar fashion to important economic or political developments. In addition, key information about the issuer, the markets or the local government or economy may be unavailable, incomplete or inaccurate. Securities of issuers traded on exchanges may be suspended, either by the issuers themselves, by an exchange or by governmental authorities. The likelihood of such suspensions may be higher for securities of issuers in emerging markets than in more developed markets. In the event that the Portfolio holds material positions in such suspended securities, the Portfolio’s ability to liquidate its positions or provide liquidity to investors may be compromised and the Portfolio could incur significant losses.
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Growth Stock Risk.
Prices of growth stocks may be more sensitive to changes in current or expected earnings than the prices of other stocks. Growth stocks may be more volatile or not perform as well as value stocks or the stock market in general.
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Holdings Risk.
The Portfolio typically holds a limited number of stocks (generally 35 to 60). As a result, the appreciation or depreciation of any one security held by the Portfolio may have a greater impact on the Portfolio’s NAV than it would if the Portfolio invested in a larger number of securities.
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Information Technology Sector Risk.
Investment risks associated with investing in the information technology sector, in addition to other risks, include the intense competition to which information technology companies may be subject; the dramatic and often unpredictable changes in growth rates and competition for qualified personnel among information technology companies; effects on profitability from being heavily dependent on patent and intellectual property rights and the loss or impairment of those rights; obsolescence of existing technology; general economic conditions; and government regulation.
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Large Company Risk.
Large-capitalization companies may go in and out of favor based on market and economic conditions. Large-capitalization companies may be unable to respond quickly to new competitive challenges, such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. Although the securities of larger companies may be less volatile than those of companies with smaller market capitalizations, returns on investments in securities of large-capitalization companies could trail the returns on investments in securities of smaller companies.
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Liquidity Risk.
Liquidity generally is related to the market trading volume for a particular security. Securities that have relatively less liquidity may trade at a discount from comparable, more liquid investments, and may be subject to wider fluctuations in market value. Such securities may be more difficult to dispose of at their recorded values and are subject to increased spreads and volatility. Also, the Portfolio may not be able to dispose of illiquid, or relatively less liquid, securities when that would be beneficial at a favorable time or price. Certain investments that generally were liquid when the Portfolio purchased them may become relatively less liquid, or even deemed illiquid, sometimes abruptly.
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Management Risk.
Portfolio performance is primarily dependent on IICO's skill in evaluating and managing the Portfolio’s holdings. There can be no guarantee that its decisions will produce the desired results, and the Portfolio may not perform as well as other similar mutual funds.
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Market Risk.
Markets can be volatile, and stock prices change daily, sometimes rapidly or unpredictably. As a result, the Portfolio’s holdings can decline in response to adverse issuer, political, regulatory, market or economic developments or conditions that may cause a broad market decline. Different parts of the market, including different sectors and different types of securities, can react differently to these developments. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Portfolio will rise in value. At times, the Portfolio may hold a relatively high percentage of its assets in stocks of a particular market sector, which would subject the Portfolio to proportionately higher exposure to the risks of that sector. Additionally, global economies and financial markets are becoming increasingly interconnected, meaning that conditions in one country or region may adversely affect issuers in another country or region, which in turn may adversely affect securities held by the Portfolio. In addition, certain events, such as natural disasters, terrorist attacks, war, regional or global instability and other geopolitical events, have led, and may in the future lead, to increased short-term market volatility and may have adverse long-term effects on world economies and markets generally.
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Mid-Size Company Risk.
Securities of mid-capitalization companies may be more vulnerable to adverse developments than those of larger companies due to such companies’ limited product lines, limited markets and financial resources and dependence upon a relatively small management group. Securities of mid-capitalization companies may be more volatile and less liquid than the securities of larger companies, and may be affected to a greater extent than other types of securities by the underperformance of a sector or during market downturns.
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Non-Diversification Risk
. The Portfolio is a “non-diversified” mutual fund and, as such, its investments are not required to meet certain diversification requirements under federal law. Compared with “diversified” funds, the
  Portfolio may invest a greater percentage of its assets in the securities of an issuer. Thus, the Portfolio may hold fewer securities than other funds. A decline in the value of those investments would cause the Portfolio’s overall value to decline to a greater degree than if the Portfolio held more diversified holdings.
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Science and Technology Industry Risk.
Investment risks associated with investing in science and technology securities, in addition to other risks, include: operating in rapidly changing fields, abrupt or erratic market movements, limited product lines, markets or financial resources, management that is dependent on a limited number of people, short product cycles, aggressive pricing of products and services, new market entrants and obsolescence of existing technology. In addition, these securities may be impacted by commodity and energy prices, which can be volatile, and may increase the volatility of these securities.
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Small Company Risk.
Securities of small-capitalization companies are subject to greater price volatility, lower trading volume and less liquidity due to, among other things, such companies’ small size, limited product lines, limited access to financing sources and limited management depth. In addition, the frequency and volume of trading of such securities may be less than is typical of larger companies, making them subject to wider price fluctuations and such securities may be affected to a greater extent than other types of securities by the underperformance of a sector or during market downturns. In some cases, there could be difficulties in selling securities of small-capitalization companies at the desired time.
Risk Lose Money [Text] rr_RiskLoseMoney As with any mutual fund, the value of the Portfolio’s shares will change, and you could lose money on your investment.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Non-Diversification Risk. The Portfolio is a “non-diversified” mutual fund and, as such, its investments are not required to meet certain diversification requirements under federal law. Compared with “diversified” funds, the Portfolio may invest a greater percentage of its assets in the securities of an issuer. Thus, the Portfolio may hold fewer securities than other funds. A decline in the value of those investments would cause the Portfolio’s overall value to decline to a greater degree than if the Portfolio held more diversified holdings.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The chart and table below provide some indication of the risks of investing in the Portfolio. The chart shows how performance has varied from year to year for Class II shares of the Portfolio. The table shows the average annual total returns for each class of the Portfolio and also compares the Portfolio’s returns with those of a broad-based securities market index and a Morningstar peer group (comprised of a universe of mutual funds with investment objectives similar to that of the Portfolio). The performance results do not reflect any Policy-related fees and expenses, which would reduce the performance results.
Performance results include the effect of expense reduction arrangements for some or all of the periods shown. If those arrangements had not been in place, the performance results for those periods would have been lower.
Prior to April 30, 2012, the Portfolio’s investment objective was to seek long-term capital growth. Effective as of April 30, 2012, the Portfolio changed its investment objective to seeking to provide growth of capital.
The Portfolio’s past performance does not necessarily indicate how it will perform in the future. Current performance may be lower or higher. Please call (888) 923-3355 for the Portfolio’s updated performance.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The chart and table below provide some indication of the risks of investing in the Portfolio. The chart shows how performance has varied from year to year for Class II shares of the Portfolio. The table shows the average annual total returns for each class of the Portfolio and also compares the Portfolio’s returns with those of a broad-based securities market index and a Morningstar peer group (comprised of a universe of mutual funds with investment objectives similar to that of the Portfolio).
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (888) 923-3355
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Portfolio’s past performance does not necessarily indicate how it will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Chart of Year-by-Year Returns as of December 31 each year
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The performance results do not reflect any Policy-related fees and expenses, which would reduce the performance results.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
In the period shown in the chart, the highest quarterly return was 25.44% (the second quarter of 2020) and the lowest quarterly return was -17.91% (the fourth quarter of 2018).
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns as of December 31, 2020
Ivy VIP Science and Technology | Class I  
Risk/Return: rr_RiskReturnAbstract  
Shareholder Fees (fees paid directly from your investment) rr_ShareholderFeeOther
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.06%
Total Annual Portfolio Operating Expenses rr_ExpensesOverAssets 0.91% [1]
1 Year rr_ExpenseExampleYear01 $ 93
3 Years rr_ExpenseExampleYear03 290
5 Years rr_ExpenseExampleYear05 504
10 Years rr_ExpenseExampleYear10 1,120
1 Year rr_ExpenseExampleNoRedemptionYear01 93
3 Years rr_ExpenseExampleNoRedemptionYear03 290
5 Years rr_ExpenseExampleNoRedemptionYear05 504
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,120
1 Year rr_AverageAnnualReturnYear01 35.70%
5 Years rr_AverageAnnualReturnYear05
Life of Class rr_AverageAnnualReturnSinceInception 24.90%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 28, 2017
Ivy VIP Science and Technology | Class II  
Risk/Return: rr_RiskReturnAbstract  
Shareholder Fees (fees paid directly from your investment) rr_ShareholderFeeOther
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.06%
Total Annual Portfolio Operating Expenses rr_ExpensesOverAssets 1.16% [1]
1 Year rr_ExpenseExampleYear01 $ 118
3 Years rr_ExpenseExampleYear03 368
5 Years rr_ExpenseExampleYear05 638
10 Years rr_ExpenseExampleYear10 1,409
1 Year rr_ExpenseExampleNoRedemptionYear01 118
3 Years rr_ExpenseExampleNoRedemptionYear03 368
5 Years rr_ExpenseExampleNoRedemptionYear05 638
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,409
2011 rr_AnnualReturn2011 (5.77%)
2012 rr_AnnualReturn2012 27.83%
2013 rr_AnnualReturn2013 56.39%
2014 rr_AnnualReturn2014 2.91%
2015 rr_AnnualReturn2015 (2.88%)
2016 rr_AnnualReturn2016 1.54%
2017 rr_AnnualReturn2017 32.12%
2018 rr_AnnualReturn2018 (5.23%)
2019 rr_AnnualReturn2019 49.48%
2020 rr_AnnualReturn2020 35.36%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 25.44%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2018
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (17.91%)
1 Year rr_AverageAnnualReturnYear01 35.36%
5 Years rr_AverageAnnualReturnYear05 20.80%
10 Years rr_AverageAnnualReturnYear10 17.09%
Ivy VIP Science and Technology | S&P North American Technology Sector Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 45.15%
5 Years rr_AverageAnnualReturnYear05 27.23%
10 Years rr_AverageAnnualReturnYear10 20.57%
Ivy VIP Science and Technology | Morningstar Technology Category Average (net of fees and expenses)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 55.91%
5 Years rr_AverageAnnualReturnYear05 25.41%
10 Years rr_AverageAnnualReturnYear10 17.79%
[1] Through April 30, 2022, Ivy Distributors, Inc. (IDI), the Portfolio’s distributor, and/or Waddell & Reed Services Company (doing business as WI Services Company (WISC)), the Portfolio’s transfer agent, have contractually agreed to reimburse sufficient fees to ensure that the total annual ordinary portfolio operating expenses (which would exclude interest, taxes, brokerage commissions, acquired fund fees and expenses and extraordinary expenses, if any) of the Class I shares are at all times equal to the total annual ordinary portfolio operating expenses of the Class II shares less 0.25%, as calculated at the end of each month. Prior to that date, the expense limitation may not be terminated without the consent of the Board of Trustees (Board).