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AZL S&P 500 Index Fund  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading  Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to match the total return of the Standard & Poor’s 500 Index (“S&P 500®”).
Expense [Heading] rr_ExpenseHeading  Fees and Expenses   Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

The following table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. The Fund is offered exclusively as an investment option for certain Contracts. The table below reflects only Fund expenses and does not reflect Contract fees and expenses. If Contract fees and expenses were included, the fees and expenses in the following table would be higher. Please refer to the Contract prospectus for a description of those fees and expenses.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund 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 fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 11% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 11.00%
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 Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same, and that you reinvest all dividends and distributions. It does not reflect any Contract fees. If Contract fees were included, the costs shown would be higher. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading  Investments, Risks, and Performance   Principal Investment Strategies of the Fund
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Subadviser normally invests in all 500 stocks in the S&P 500® in proportion to their weighting in the index.

 

The Subadviser attempts to have a correlation between the Fund’s performance and that of the S&P 500® Index of at least 0.95 before expenses. A correlation of 1.00 would mean that the Fund and the index were perfectly correlated.

 

The S&P 500® is an unmanaged index of 500 common stocks chosen to reflect the industries of the U.S. economy and is often considered a proxy for the stock market in general. S&P® adjusts each company’s stock weighting in the index by the number of available float shares (those shares available to public investors) divided by the company’s total shares outstanding, which means larger companies with more available float shares have greater representation in the index than smaller ones.

 

In seeking to match the performance of the index, the Subadviser uses a passive management approach and generally purchases all of the stocks comprising the benchmark index. However, in certain circumstances the Subadviser may find it advantageous to purchase a representative sample of the stocks comprising the index. The Subadviser also may use stock index futures as a substitute for the sale or purchase of securities. Under normal circumstances, the Fund invests at least

 

80% of the value of its net assets in the securities of or in a statistically selected sampling of the securities of companies included in the S&P 500 Index or in derivative instruments linked to that Index.

 

Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Index is concentrated.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in the Fund
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide an indication of the risks of an investment in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns for one year, five years, and ten years compare with those of a broad-based measure of market performance.

 

Both the bar chart and the table assume reinvestment of dividends and distributions.

 

The performance of the Fund will vary from year to year. The Fund’s performance does not reflect the cost of insurance and separate account charges which are imposed under your Contract. If they were included, performance would be reduced. Past performance does not indicate how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide an indication of the risks of an investment in the Fund by showing changes in its performance from year to year and by showing how the Fund’s average annual returns for one year, five years, and ten years compare with those of a broad-based measure of market performance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance does not indicate how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Performance Bar Chart and Table (Class 2)   Calendar Year Total Return
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The Fund’s performance does not reflect the cost of insurance and separate account charges which are imposed under your Contract. If they were included, performance would be reduced.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

Highest and Lowest Quarter Returns (for periods shown in the bar chart)

 

Highest (Q2, 2020) 20.40%
Lowest (Q1, 2020) -19.90%
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes Reflects no deduction for fees, expenses, or taxes.
AZL S&P 500 Index Fund | Risk Not Insured Depository Institution [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
AZL S&P 500 Index Fund | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock You may lose money by investing in the Fund.
AZL S&P 500 Index Fund | Market Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Market Risk – The market value of portfolio securities may go up or down, sometimes rapidly and unpredictably. The value of a security or other asset may fluctuate significantly due to factors such as changes in general market conditions, including economic, political, and financial conditions, widespread disease or other public health issues, war, military conflict, acts of terrorism, adverse investor sentiment, or instability or other disruptive events in the local, regional or global markets. Certain changes in the U.S. economy, such as a decrease in imports or exports, changes in trade regulations, inflation and/or economic recession, may have an adverse effect on the value of the Fund’s securities.
AZL S&P 500 Index Fund | Issuer Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Issuer Risk – The value of a security may decline for a number of reasons directly related to the issuer of the security. Further, the value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
AZL S&P 500 Index Fund | Index Fund Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Index Fund Risk – The Fund does not attempt to manage market volatility or reduce the effects of poor performance. In addition, factors such as fund expenses, selection of a representative portfolio, changes in the composition of the index, or the timing of purchases or redemptions of fund shares may affect the correlation between the performance of the index and the fund’s performance.
AZL S&P 500 Index Fund | Derivatives Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Derivatives Risk – Investing in derivative instruments involves risks that may be different from or greater than the risks associated with investing directly in securities or other traditional investments. Derivatives are subject to a number of other risks, such as liquidity risk, interest rate risk, market risk, credit risk, counterparty risk, and selection risk. Derivatives also involve the risk of mispricing or improper valuation and the risk that changes in the value may not correlate perfectly with the underlying asset, rate, or index. Using derivatives may result in losses, possibly in excess of the principal amount invested.
AZL S&P 500 Index Fund | Futures Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Futures Risk – The value of futures contracts depend primarily upon the price of the securities, indexes, commodities, currencies or other instruments underlying them. Price movements are also influenced by, among other things, interest rates, changing supply and demand relationships, trade, fiscal, monetary, and exchange control programs and policies of governments, and national and international political and economic events and policies. The cost of futures may also be related, in part, to the degree of volatility of the underlying indices, securities, currencies, or other assets. Accordingly, futures on highly volatile indices, securities, currency, or other assets may be more expensive than futures on other investments. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal amount invested.
AZL S&P 500 Index Fund | Technology Sector Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Technology Sector Risk – Technology companies, including information technology companies, may have limited product lines, markets, financial resources or personnel. Technology companies typically face intense competition and potentially rapid product obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by the loss or impairment of those rights.
AZL S&P 500 Index Fund | S&P 500 Index  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 25.02% [1]
5 Years rr_AverageAnnualReturnYear05 14.53% [1]
10 Years rr_AverageAnnualReturnYear10 13.10% [1]
AZL S&P 500 Index Fund | AZL S&P 500 Index Fund Class 1  
Risk/Return: rr_RiskReturnAbstract  
Management Fee rr_ManagementFeesOverAssets 0.17%
Distribution (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.06%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.23%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 24
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 74
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 130
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 293
1 Year rr_AverageAnnualReturnYear01 24.74%
5 Years rr_AverageAnnualReturnYear05 14.19%
10 Years rr_AverageAnnualReturnYear10 12.83%
AZL S&P 500 Index Fund | AZL S&P 500 Index Fund Class 2  
Risk/Return: rr_RiskReturnAbstract  
Management Fee rr_ManagementFeesOverAssets 0.17%
Distribution (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.06%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.48%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 49
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 154
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 269
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 604
Annual Return 2015 rr_AnnualReturn2015 0.95%
Annual Return 2016 rr_AnnualReturn2016 11.45%
Annual Return 2017 rr_AnnualReturn2017 21.36%
Annual Return 2018 rr_AnnualReturn2018 (4.84%)
Annual Return 2019 rr_AnnualReturn2019 30.89%
Annual Return 2020 rr_AnnualReturn2020 17.50%
Annual Return 2021 rr_AnnualReturn2021 28.12%
Annual Return 2022 rr_AnnualReturn2022 (18.51%)
Annual Return 2023 rr_AnnualReturn2023 25.68%
Annual Return 2024 rr_AnnualReturn2024 24.37%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest (Q2, 2020)
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.40%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest (Q1, 2020)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (19.90%)
1 Year rr_AverageAnnualReturnYear01 24.37%
5 Years rr_AverageAnnualReturnYear05 13.91%
10 Years rr_AverageAnnualReturnYear10 12.55%
[1] Reflects no deduction for fees, expenses, or taxes.