v3.25.1
Label Element Value
Risk Return Abstract rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName EMPOWER FUNDS, INC.
Prospectus Date rr_ProspectusDate Apr. 30, 2025
Empower SecureFoundation Balanced ETF Fund  
Risk Return Abstract rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading <span style="color:#000000;font-family:Times New Roman;font-size:12pt;font-weight:bold;">Fund Summary</span>
Objective [Heading] rr_ObjectiveHeading <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Investment Objective</span>
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Fund seeks long-term capital appreciation and income.
Objective, Secondary [Text Block] rr_ObjectiveSecondaryTextBlock  
Expense [Heading] rr_ExpenseHeading <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Fees and Expenses of the Fund</span>
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. This table does not reflect the fees, expenses or withdrawal charges imposed by the Guarantee (“Guarantee Benefit Fee”), which is described in a separate prospectus or disclosure statement describing the Guarantee. If the Guarantee Benefit Fee was reflected, the fees and expenses shown below would be higher. You may qualify for a sales charge waiver; information about the waiver is available from your financial professional.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Shareholder Fees </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">(fees paid directly from your investment)</span>
Operating Expenses Caption [Text] rr_OperatingExpensesCaption <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Annual Fund Operating Expenses</span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;"> (expenses that you pay each year as a percentage of the value of your investment)</span>
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination <span style="color:#000000;font-family:Times New Roman;font-size:9pt;">April 30, 2026</span>
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Portfolio Turnover</span>
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 generally indicates higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. 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 turnover rate was 9% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 9.00%
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees <span style="color:#000000;font-family:Times New Roman;font-size:9pt;">The Total Annual Fund Operating Expenses may not correlate to the ratio of expenses to average net assets provided in the Fund's Financial Highlights, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.</span>
Expense Example [Heading] rr_ExpenseExampleHeading <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Example</span>
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 does not reflect the Guarantee Benefit Fee. If the Guarantee Benefit Fee was reflected, the fees and expenses in the Example would be higher.The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of each period. The Example also assumes that the Expense Limit is in place for the first year, that your investment has a 5% return each year, that all dividends and capital gains are reinvested, and that the Fund’s operating expenses are the amount shown in the fee table and remain the same for the years shown. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading] rr_StrategyHeading <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Principal Investment Strategies</span>
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock Below is a summary of the principal investment strategies of the Fund.The Fund is a “fund-of-funds” that seeks to achieve its objective by investing primarily in a professionally selected mix of exchange-traded funds (“Underlying ETFs”). The Fund may also invest in other types of securities, including open-end investment companies (together, with Underlying ETFs, “Underlying Funds”).Under normal conditions, the Fund will invest 45-65% of its net assets (plus the amount of any borrowings for investment purposes) in Underlying ETFs that invest primarily in equity securities and 35-55% of its net assets (plus the amount of any borrowings for investment purposes) in Underlying ETFs that invest primarily in fixed income securities. In addition to investing in Underlying ETFs, the Fund may invest a portion of its assets directly in derivatives, such as futures, for cash management purposes and to gain exposure to securities in the underlying index pending investment in Underlying ETFs. The Fund also may hold a portion of its assets in U.S. government securities, money market funds, and cash or cash equivalents for cash management purposes.Empower Capital Management, LLC (“ECM”), the Fund’s investment adviser, uses asset allocation strategies to allocate assets among different broad asset classes and the Underlying ETFs. The Fund currently invests primarily in Underlying ETFs designed to track the performance of a specified securities index (“Index Funds”). Each Underlying ETF has its own investment objective and strategies and may hold a wide range of securities and other instruments in its portfolio, including, without limitation, U.S. and foreign equities (including those from emerging markets), fixed income securities, short-term investments and derivatives. The following table shows the Fund’s target allocation for the various asset classes and the Underlying ETFs in which the Fund expects to invest as of the date of this Prospectus:Large Cap20.79%International13.86%Vanguard S&P 500 ETFVanguard FTSE Developed Markets ETFMid Cap11.66%Emerging Markets4.56%Vanguard S&P Mid-Cap 400 ETFVanguard FTSE Emerging Markets ETFSmall Cap9.13%Bond40.00%Vanguard Russell 2000 ETFVanguard Total Bond Market ETFThe Fund will rebalance its holdings of the Underlying ETFs on a periodic basis to maintain the appropriate asset allocations. ECM reviews asset class allocations, Underlying ETF allocations, and the Underlying ETFs on a quarterly basis, or more frequently as deemed necessary. ECM may add or delete asset classes, change target asset class or Underlying ETF allocations, or add or delete Underlying ETFs at any time without shareholder notice or approval.
Risk [Heading] rr_RiskHeading <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Principal Investment Risks</span>
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">Performance</span>
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The bar chart and table below provide an indication of the risk of investment in the Fund by showing changes in the performance of the Fund’s Class A shares for the last ten calendar years and by comparing its average annual total return to the performance of a broad-based securities market index and a composite index which has investment characteristics similar to those of the Fund. The composite index is derived by applying the Fund’s target asset allocation among the asset classes over time to the results of the following indexes: the S&P 500® Index (large blend); the S&P MidCap 400® Index (mid blend); the S&P SmallCap 600® Index (small blend); the MSCI EAFE Index (international large blend); the MSCI Emerging Markets Index (diversified emerging markets); and the Bloomberg U.S. Aggregate Bond Index (intermediate term bond). Please see Appendix A of the Fund’s Prospectus for more information regarding the composite index. The returns shown below are historical and are not an indication of future performance.Total return figures assume reinvestment of dividends and capital gains distributions and include the effect of the Fund’s recurring expenses, but do not reflect the impact of sales charges or the Guarantee Benefit Fee. If the sales charges or the Guarantee Benefit Fee were reflected, the performance shown would be lower.Updated performance information may be obtained at www.empower.com/investments/empower-funds/fund-documents (the website does not form a part of this Prospectus).
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns <span style="color:#000000;font-family:Times New Roman;font-size:10pt;margin-left:0%;">The bar chart and table below provide an indication of the risk of investment in the Fund by showing changes in the performance of the Fund’s Class A shares for the last ten calendar years and by comparing its average annual total return to the performance of a broad-based securities market index and a composite index which has investment characteristics similar to those of the Fund.</span>
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress <span style="color:#000000;font-family:Times New Roman;font-size:10pt;">www.empower.com/investments/empower-funds/fund-documents</span>
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture <span style="color:#000000;font-family:Times New Roman;font-size:10pt;">The returns shown below are historical and are not an indication </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;margin-left:0%;">of future performance.</span>
Bar Chart [Heading] rr_BarChartHeading <span style="color:#000000;font-family:Times New Roman;font-size:12pt;font-weight:bold;">Calendar Year Total Returns for Class A Shares Before Sales Charges</span>
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads <span style="color:#000000;font-family:Times New Roman;font-size:10pt;">Total return figures assume reinvestment of dividends and capital gains distributions and include the effect </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;margin-left:0%;">of the Fund’s recurring expenses, but do not reflect the impact of sales charges or the Guarantee Benefit Fee. If the sales charges or </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">the Guarantee Benefit Fee were reflected, the performance shown would be lower.</span>
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock Quarter EndedTotal ReturnBest QuarterJune 30, 202014.17%Worst QuarterMarch 31, 2020-14.34%
Performance Table Heading rr_PerformanceTableHeading <span style="color:#000000;font-family:Times New Roman;font-size:12pt;font-weight:bold;">Average Annual Total Returns for the Periods Ended December 31, 2024</span>
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate <span style="color:#000000;font-family:Times New Roman;font-size:10pt;margin-left:0%;">After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</span>
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred <span style="color:#000000;font-family:Times New Roman;font-size:10pt;">Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;margin-left:0%;">After-tax returns shown do not apply to investors who are tax-exempt or who hold Fund shares through tax-advantaged </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).</span>
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown  
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown do not apply to investors who are tax-exempt or who hold Fund shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).
Empower SecureFoundation Balanced ETF Fund | Risk Nondiversified Status [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock The Fund is classified as non-diversified under the Investment Company Act of 1940, as amended (the “1940 Act”), which means a relatively high percentage of its assets may be invested in securities of a limited number of Underlying ETFs. As a result, the Fund may be more susceptible to any single economic, political or regulatory event than that experienced by a similarly structured diversified fund. However, the Underlying ETFs themselves are diversified investment companies.
Empower SecureFoundation Balanced ETF Fund | Risk Lose Money [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock and is subject to the possible loss of your original investment.
Empower SecureFoundation Balanced ETF Fund | Risk Not Insured [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund or Underlying ETFs is not a deposit with a bank, is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any government agency
Empower SecureFoundation Balanced ETF Fund | Fund of Funds Structure Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Fund-of-Funds Structure RiskSince the Fund invests directly in Underlying ETFs, all risks associated with the Underlying ETFs apply to the Fund. To the extent the Fund invests more of its assets in one Underlying ETF than another, the Fund will have greater exposure to the risks of that Underlying ETF.Since the Fund invests in Underlying ETFs, you will bear your proportionate share of expenses of the Fund and indirectly your proportionate share of expenses of the Underlying ETFs. Consequently, an investment in the Fund entails more expenses than a direct investment in the Underlying ETFs.The Fund is classified as non-diversified under the Investment Company Act of 1940, as amended (the “1940 Act”), which means a relatively high percentage of its assets may be invested in securities of a limited number of Underlying ETFs. As a result, the Fund may be more susceptible to any single economic, political or regulatory event than that experienced by a similarly structured diversified fund. However, the Underlying ETFs themselves are diversified investment companies.
Empower SecureFoundation Balanced ETF Fund | Exchange Traded Fund Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Exchange-Traded Funds (“ETFs”) Risk - Because ETF shares are traded on an exchange, they are subject to additional risks:ETF shares can be bought and sold on the secondary market at market prices. Although it is expected that the market price of an ETF share typically will approximate its net asset value, there may be times when the market price and the net asset value of an ETF share vary significantly. Thus, the Fund may pay more or less than net asset value when it buys shares of an Underlying ETF on the secondary market, and the Fund may receive more or less than net asset value when it sells those shares.Although ETF shares are listed for trading, it is possible that an active trading market may not develop or be maintained.Trading of ETF shares may be halted by the activation of individual or marketwide “circuit breakers” (which halt trading for a specified period of time when the price of a particular security or overall market process decline by a specified percentage). Trading of ETF shares may also be halted if (1) the shares are delisted from an exchange without first being listed on another exchange or (2) exchange officials deem such action is appropriate in the interest of a fair and orderly market or to protect investors.
Empower SecureFoundation Balanced ETF Fund | Conflict of Interest Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Conflict of Interest Risk - ECM may be subject to conflicts of interest because its affiliate, Empower of America, is the issuer of the Guarantee that you are required to purchase if you invest in the Fund.
Empower SecureFoundation Balanced ETF Fund | Equity Securities Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Equity Securities Risk - The value of equity securities held by an Underlying ETF may decline as a result of factors directly related to a company, a particular industry or industries, or general market conditions that are not specifically related to a company or an industry.
Empower SecureFoundation Balanced ETF Fund | Market Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Market Risk - The value of an Underlying ETF’s investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting (or perceived to affect) specific issuers held by an Underlying ETF, particular industries represented in an Underlying ETF’s portfolio, or the overall securities markets. A variety of factors can increase the volatility of an Underlying ETF’s holdings and markets generally, including political or regulatory developments, recessions, inflation, deflation, rapid interest rate changes, bank failures, war or acts of terrorism, sanctions, tariffs, natural disasters, outbreaks of infectious illnesses or other widespread public health issues, general outlook for corporate earnings, or adverse investor sentiment generally. Certain events may cause instability across global markets, including reduced liquidity and disruptions in trading markets, while some events may affect certain geographic regions, countries, sectors, and industries more significantly than others. These adverse developments may cause broad declines in an issuer’s value due to short-term market movements or for significantly longer periods during more prolonged market downturns.
Empower SecureFoundation Balanced ETF Fund | Small Or Mid Cap Company Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Small- and Medium-Size Company Risk - The stocks of small- and medium-size companies often trade in lower volumes, may be less liquid, and are subject to greater or more unpredictable price changes than stocks of larger companies. Such companies may also have limited markets, financial resources or product lines, may lack management depth, and may be more vulnerable to adverse business or market developments. Accordingly, stocks of small- and medium-size companies tend to be more sensitive to changing economic, market, and industry conditions and tend to be more volatile and less liquid than stocks of larger companies, especially over the short term, and are more likely not to survive or accomplish their goals with the result that the value of their stock could decline significantly. In addition, there may be less publicly available information concerning small- and medium-size companies upon which to base an investment decision.
Empower SecureFoundation Balanced ETF Fund | Large Size Company Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Large-Size Company Risk - Large-size companies are generally more mature and may be unable to respond as quickly as smaller companies to new competitive challenges, such as changes in technology and consumer tastes, and may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.
Empower SecureFoundation Balanced ETF Fund | Fixed Income Securities Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Fixed Income Securities Risk - Investments in fixed income securities are subject to interest rate risk (the chance that bond prices will decline because of rising interest rates), income risk (the chance that an Underlying ETF’s income will decline because of falling interest rates), credit risk (the chance that a bond issuer will fail to pay interest and principal in a timely manner, or that market perception of the issuer will cause the price of a bond to decline), and call/prepayment risk (the chance that bond issuers will redeem bonds prior to their maturity dates).
Empower SecureFoundation Balanced ETF Fund | Interest Rate Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Interest Rate Risk - The market value of a fixed income security is affected significantly by changes (or the expectation of such changes) in interest rates. A wide variety of market and economic factors can cause interest rates to rise or fall, including central bank monetary policy, rising inflation, disinflation or deflation, and changes in general economic conditions. When interest rates rise, the market value of a fixed income security will generally decline and when interest rates decline, the market values of such securities will generally rise. In general, the longer the maturity or duration of a fixed income security, the greater its sensitivity to changes in interest rates. Changes in interest rates can be difficult to forecast and may have unpredictable effects on the markets and an Underlying ETF’s investments, including negatively affecting yield, value and/or liquidity. Actions taken by the Federal Reserve Board or foreign central banks to stimulate or stabilize economic growth, such as increases or decreases in short-term interest rates, may adversely affect markets, which could, in turn, negatively impact an Underlying ETF’s performance.
Empower SecureFoundation Balanced ETF Fund | Credit Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Credit Risk - An issuer (or guarantor) of a security may default on its obligations to pay principal and/or interest. A security’s value may be affected by changes in its credit quality rating or its issuer’s financial conditions.
Empower SecureFoundation Balanced ETF Fund | Foreign Securities Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Foreign Securities Risk - Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, geopolitical (including war or armed conflict), regulatory, market, currency valuation, or economic or other developments and can perform differently than the U.S. market. Current tariffs, sanctions or the threat of potential tariffs, sanctions or other similar measures may also impair the value or liquidity of affected securities and negatively impact an Underlying ETF.
Empower SecureFoundation Balanced ETF Fund | Emerging Markets Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Emerging Markets Risk - Emerging market countries generally have economic structures that are less diverse and mature, and political systems that are less stable, than those of developed countries. The economies of countries with emerging markets may be based predominantly on only a few industries, may be highly vulnerable to changes in local or global trade conditions, and may suffer from limited reliable access to capital, extreme debt burdens, less established financial market operations or volatile inflation rates. The securities markets of emerging market countries may be subject to manipulation and have historically been extremely volatile and less liquid than more developed markets. These market conditions may continue or worsen. Investments in these countries may be subject to heightened political, geopolitical (including war or armed conflict), economic, legal, market, currency and tariff risks and other adverse local or regional developments, including heightened risk of war and ethnic, religious and racial conflicts. The imposition of sanctions, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) and other government restrictions by the U.S. and other governments, or from problems in share registration, settlement or custody, may also result in losses. Differences in regulatory, accounting, auditing and financial reporting and recordkeeping standards could impede the availability of reliable information to evaluate and monitor local companies and impact an Underlying ETF’s performance. There is also the risk of negative foreign currency exchange rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying ETF has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time.
Empower SecureFoundation Balanced ETF Fund | Geographic Concentration Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Geographic Concentration Risk - Events negatively affecting the fiscal stability of a particular country or region in which an Underlying ETF focuses its investments may cause the value of its shares to decrease, perhaps significantly.
Empower SecureFoundation Balanced ETF Fund | Index Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Index Risk - Because an index fund is designed to track the performance of a benchmark index, investors should generally expect the value of the index fund to decline when the performance of its benchmark index declines. As a result, it is possible the index fund could have poor investment results even if it closely tracks the return of its benchmark index, because the adverse performance of a particular security normally will not result in eliminating the security from the fund. It is possible the benchmark index may perform unfavorably and/or underperform the market as a whole. An index fund is not actively managed and portfolio managers do not attempt to take defensive positions in declining markets. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the index fund’s return to be lower than if the index fund employed an active strategy.
Empower SecureFoundation Balanced ETF Fund | Currency Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Currency Risk - Adverse fluctuations in exchange rates between the U.S. dollar and other currencies may cause an Underlying ETF to lose money on investments denominated in foreign currencies.
Empower SecureFoundation Balanced ETF Fund | Liquidity Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Liquidity Risk - An Underlying ETF may not be able to sell a security at or near its perceived value in a timely manner (or at all) because of unusual market conditions, an unusually high volume of redemption requests, little or no active trading market for a specific type of security, legal or contractual restrictions on resale, or a reduced number or capacity of market participants to make a market in such security. Liquidity risk may also refer to the risk that an Underlying ETF will not be able to pay redemption proceeds within the allowable time period or without significant dilution to the remaining investors’ interest due to market conditions or other factors. Extraordinary and sudden changes in interest rates could disrupt the market for fixed income securities and result in fluctuations in an Underlying ETF’s net asset value. Increased redemptions due to a rise in interest rates may require an Underlying ETF to liquidate its holdings at an unfavorable time and/or under adverse or disadvantageous conditions which may negatively affect the Underlying ETF. Investments in many, but not all, foreign securities tend to have greater exposure to liquidity risk than domestic securities because secondary trading markets for these securities may be smaller and less well-developed and the securities may trade less frequently.
Empower SecureFoundation Balanced ETF Fund | Derivatives Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Derivatives Risk - The use of derivatives, including but not limited to futures contracts, forward contracts, options, and swaps, may expose an Underlying ETF to additional risks that it would not be subject to if it invested directly in the securities underlying those derivatives. These risks include imperfect correlations with underlying investments or an Underlying ETF’s other portfolio holdings, magnified losses resulting from leverage, counterparty risk, high price volatility, liquidity risk, segregation risk, valuation risk and legal restrictions.
Empower SecureFoundation Balanced ETF Fund | Management Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Management Risk - A strategy, investment decision, technique, analysis, or model used by the portfolio managers may fail to produce the intended results or imperfections, errors or limitations in the tools and data used by the portfolio managers may cause unintended results. Therefore, an Underlying ETF could underperform in comparison to other funds with similar objectives and investment strategies and may generate losses even in a favorable market.
Empower SecureFoundation Balanced ETF Fund | A  
Risk Return Abstract rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.00%
Maximum Deferred Sales Charge (Load) rr_MaximumDeferredSalesChargeOverOther none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther none
Redemption Fee (as a percentage of Amount Redeemed) rr_RedemptionFeeOverRedemption none
Exchange Fee rr_ExchangeFeeOverRedemption none
Management Fees rr_ManagementFeesOverAssets 0.16%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_Component1OtherExpensesOverAssets 1.21%
Total Other Expenses rr_OtherExpensesOverAssets 1.21%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.05%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.42% [1]
Fee Waiver and Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets 1.14% [2]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement rr_NetExpensesOverAssets 0.28%
1 Year rr_ExpenseExampleYear01 $ 529
3 Years rr_ExpenseExampleYear03 836
5 Years rr_ExpenseExampleYear05 1,165
10 Years rr_ExpenseExampleYear10 $ 2,098
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0.0pt;">Best Quarter</span>
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 14.17%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0.0pt;">Worst Quarter</span>
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (14.34%)
OneYear rr_AverageAnnualReturnYear01 3.54%
FiveYears rr_AverageAnnualReturnYear05 4.63%
TenYears rr_AverageAnnualReturnYear10 5.59%
Empower SecureFoundation Balanced ETF Fund | FT Wilshire 5000 Index (reflects no deduction for fees, expenses or taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
OneYear rr_AverageAnnualReturnYear01 23.76%
FiveYears rr_AverageAnnualReturnYear05 14.11%
TenYears rr_AverageAnnualReturnYear10 12.73%
Empower SecureFoundation Balanced ETF Fund | Return After Taxes on Distributions | A  
Risk Return Abstract rr_RiskReturnAbstract  
OneYear rr_AverageAnnualReturnYear01 6.48%
FiveYears rr_AverageAnnualReturnYear05 3.11%
TenYears rr_AverageAnnualReturnYear10 3.93%
Empower SecureFoundation Balanced ETF Fund | Return After Taxes on Distributions and Sale of Fund Shares | A  
Risk Return Abstract rr_RiskReturnAbstract  
OneYear rr_AverageAnnualReturnYear01 6.31%
FiveYears rr_AverageAnnualReturnYear05 3.93%
TenYears rr_AverageAnnualReturnYear10 4.28%
Empower SecureFoundation Balanced ETF Fund | Composite Index (reflects no deduction for fees, expenses or taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
OneYear rr_AverageAnnualReturnYear01 8.93%
FiveYears rr_AverageAnnualReturnYear05 5.93%
TenYears rr_AverageAnnualReturnYear10 6.53%
[1] The Total Annual Fund Operating Expenses may not correlate to the ratio of expenses to average net assets provided in the Fund's Financial Highlights, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
[2] The investment adviser has contractually agreed to reduce its management fee or pay the Fund an amount equal to the amount by which any ordinary operating expenses, excluding advisory fees payable to the investment adviser, distribution and service fees pursuant to a Rule 12b-1 or successor plan, interest, taxes, brokerage and transaction costs, other investment-related costs, leverage expenses, extraordinary expenses such as litigation, other expenses not incurred in the ordinary course of such Fund’s business, indirect expenses (including, without limitation, acquired fund fees and expenses), and expenses of any counsel or other persons or services retained by Empower Funds’ Independent Directors (“Other Expenses”) incurred by the Fund that exceeds an annual rate of 0.07% of the Fund’s average daily net assets for Class A shares (“Expense Limit”). The agreement’s current term ends on April 30, 2026, and automatically renews for one-year terms unless it is terminated upon termination of the investment advisory agreement or by Empower Funds or the investment adviser upon written notice within 90 days of the end of the current term. Under the agreement, the investment adviser may recoup, subject to the approval of the Board of Directors of Empower Funds, these waivers and reimbursements in future periods, not exceeding three years following the particular waiver/reimbursement, provided Total Annual Fund Operating Expenses, plus such recoupment do not exceed the lesser of the Expense Limit that was in place at the time of the waiver/reimbursement or the Expense Limit in place at the time of recoupment.