v3.25.1
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Risk Return Abstract rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName EMPOWER FUNDS, INC.
Prospectus Date rr_ProspectusDate Apr. 30, 2025
Empower Lifetime 2060 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;">Empower Lifetime 2060 Fund</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 capital appreciation and income consistent with its current asset allocation. After 2060, the Fund seeks incomeand secondarily, capital growth.
Objective, Secondary [Text Block] rr_ObjectiveSecondaryTextBlock and secondarily, capital growth
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 and expenses of any Permitted Account. If the fees and expenses of a Permitted Account were reflected, the fees and expenses shown below would be higher.
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>
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. 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 18% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 18.00%
Acquired Fund Fees and Expenses, Based on Estimates [Text] rr_AcquiredFundFeesAndExpensesBasedOnEstimates <span style="color:#000000;font-family:Times New Roman;font-size:9pt;">The Acquired Fund Fees and Expenses are estimated for the current fiscal year.</span>
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 fees and expenses of any Permitted Account. If the fees and expenses of any Permitted Account were 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 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 in a professionally selected mix of mutual funds and in a fixed interest contract (the “Contract” or the “Empower of America Contract”) issued and guaranteed by Empower Annuity Insurance Company of America (“Empower of America”) that is tailored for investors planning to retire in (or otherwise begin using the invested funds on), or close to, 2060 (which is assumed to be at age 65). The mutual funds and the Contract are referred to as the “Underlying Funds.” The Fund is designed for investors who plan to withdraw the value of their account in the Fund gradually after retirement. Depending on its risk profile and proximity to 2060, the Fund employs a combination of investments among Underlying Funds in order to emphasize, as appropriate, growth, income and/or preservation of capital. The Fund currently expects (as of the date of this Prospectus) to invest 75-95% of its net assets in Underlying Funds that invest primarily in equity securities, 2-20% of its net assets in Underlying Funds that invest primarily in fixed income securities, and 0-10% of its net assets in Underlying Funds that invest primarily in real estate-related securities. Over time, the Fund’s asset allocation strategy will generally become more conservative, with greater emphasis on investments that provide for income and preservation of capital, and less on those offering the potential for growth.The following chart illustrates the Fund’s target asset allocations among U.S. equity, foreign equity, fixed income, and real estate-related securities. The chart represents the asset allocation path (the “glide path”) that the Fund follows to become more conservative over time. The glide path reflects the declining percentage of equities in the Fund as it approaches and passes the target date. The glide path provides for more exposure to equities for investors further from retirement and more exposure to fixed income securities for investors near and through retirement. The glide path continues to adjust the Fund’s equity exposure downward after the target date is reached.The illustration reflects the Fund’s neutral allocations without any tactical adjustments by Empower Capital Management, LLC (“ECM”), the Fund’s investment adviser. The Fund’s actual asset allocations may differ from this illustration to reflect ECM’s tactical adjustments to the asset mix based on market outlook or other factors.ECM uses asset allocation strategies to allocate the Fund’s assets among different broad asset classes and the Underlying Funds. Each Underlying Fund has its own investment objectives and strategies and may hold a wide range of securities and other instruments in its portfolio, including, without limitation, U.S. and foreign equity securities (including those from emerging markets), U.S. and foreign fixed income securities (including those rated below investment grade), real estate investments, short-term investments and derivatives. The following table shows the Fund’s target allocation for the various asset classes and the Underlying Funds in which the Fund expects to invest as of the date of this Prospectus:Large Cap38.14%Empower Large Cap Growth Fund InstitutionalEmpower Large Cap Value Fund InstitutionalEmpower S&P 500® Index Fund InstitutionalMid Cap11.10%Empower Mid Cap Value Fund InstitutionalEmpower T. Rowe Price Mid Cap Growth Fund InstitutionalSmall Cap7.68%Empower Small Cap Growth Fund InstitutionalEmpower Small Cap Value Fund InstitutionalJanus Henderson Triton Fund NInternational25.19%Empower International Growth Fund InstitutionalEmpower International Index Fund InstitutionalEmpower International Value Fund InstitutionalEmerging Markets8.88%Empower Emerging Markets Equity Fund InstitutionalFidelity Emerging Markets Index FundBond5.20%Empower Bond Index Fund InstitutionalEmpower Core Bond Fund InstitutionalEmpower Global Bond Fund InstitutionalEmpower High Yield Bond Fund InstitutionalEmpower Multi-Sector Bond Fund InstitutionalReal Estate3.47%Empower Real Estate Index Fund InstitutionalShort-Term Bond/Cash0.33%Empower of America ContractEmpower Short Duration Bond Fund InstitutionalThe Fund will rebalance its holdings of the Underlying Funds on a periodic basis to maintain the appropriate asset allocations. ECM reviews asset class allocations, Underlying Fund allocations, and the Underlying Funds on a quarterly basis, or more frequently as deemed necessary. ECM may add or delete asset classes, change target asset class or Underlying Fund allocations, or add or delete Underlying Funds 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 Investor Class shares for each full calendar year since inception and by comparing the Fund's average annual total returns to the performance of a broad-based securities market index and an additional index with investment characteristics similar to those of the Fund.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 include fees and expenses of any Permitted Account. If the fees and expenses of any Permitted Account 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 Investor Class shares for each full calendar year since inception and by comparing the Fund's average annual total returns to the performance of a broad-based securities market index and an additional index with 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 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</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 </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;margin-left:0%;">assume reinvestment of dividends and capital gains distributions and include the effect of the Fund’s recurring expenses, but do not include fees and expenses of any Permitted Account. If the fees and expenses of any Permitted Account were reflected, the </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">performance shown would be lower.</span>
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock Quarter EndedTotal ReturnBest QuarterJune 30, 202018.84%Worst QuarterMarch 31, 2020-22.40%
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 Market Index Changed rr_PerformanceTableMarketIndexChanged  
Empower Lifetime 2060 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 Funds. 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 Funds (other than the Empower Global Bond Fund, Empower Real Estate Index Fund, and the Contract) themselves are diversified investment companies.
Empower Lifetime 2060 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 Lifetime 2060 Fund | Risk Not Insured [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund or Underlying Funds is not a deposit with a bank, is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any government agency
Empower Lifetime 2060 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 the Underlying Funds, all risks associated with the Underlying Funds apply to the Fund. To the extent the Fund invests more of its assets in one Underlying Fund than another, the Fund will have greater exposure to the risks of that Underlying Fund.Since the Fund invests in Underlying Funds, you will bear your proportionate share of expenses of the Fund and indirectly your proportionate share of expenses of the Underlying Funds. Consequently, an investment in the Fund entails more expenses than a direct investment in the Underlying Funds.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 Funds. 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 Funds (other than the Empower Global Bond Fund, Empower Real Estate Index Fund, and the Contract) themselves are diversified investment companies.
Empower Lifetime 2060 Fund | Target Date Fund Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Target Date Fund Risk - The year in the Fund name refers to the approximate year (the target date) when an investor in the Fund is planning to retire (or otherwise begin using the invested funds). The Fund’s asset allocation is adjusted to become more conservative based on its target date. If an investor chooses to retire significantly earlier or later than the target date, a different asset allocation may be more appropriate. An investment in a target date fund is not guaranteed at any time, including on or after the target date. Investors should periodically monitor the portfolio to ensure it is in line with their current situation.
Empower Lifetime 2060 Fund | Empower of America Contract Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Empower of America Contract Risk - The Contract has a stable principal value and pays a minimum fixed interest rate to the Fund. Both the principal and interest rate are guaranteed by Empower of America regardless of market conditions. However, if Empower of America were to become insolvent and unable to meet the guarantee, the Fund may lose money from unpaid principal or unpaid or reduced interest, and the Contract would be settled commensurate with other Empower of America policy holder obligations under applicable law.
Empower Lifetime 2060 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 Fund 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 Lifetime 2060 Fund | Market Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Market Risk - The value of an Underlying Fund’s investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting (or perceived to affect) specific issuers held by an Underlying Fund, particular industries represented in an Underlying Fund’s portfolio, or the overall securities markets. A variety of factors can increase the volatility of an Underlying Fund’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 Lifetime 2060 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 Lifetime 2060 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 Lifetime 2060 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 Fund.
Empower Lifetime 2060 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 Fund’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 Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time.
Empower Lifetime 2060 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 Fund focuses its investments may cause the value of its shares to decrease, perhaps significantly.
Empower Lifetime 2060 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 Lifetime 2060 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 Fund to lose money on investments denominated in foreign currencies.
Empower Lifetime 2060 Fund | Value Stock Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Value Stock Risk - A value style of investing is subject to the risk that returns on value stocks are less than returns on other styles of investing or the overall stock market. Value stocks tend to trade at lower price-to-book and price-to-earnings ratios, which suggest the market as a whole views their potential future earnings as limited.
Empower Lifetime 2060 Fund | Growth Stock Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Growth Stock Risk - A growth style of investing is subject to the risk that returns on growth stocks are less than returns on other styles of investing or the overall stock market. Growth stocks can be volatile for several reasons. Since they usually reinvest a high proportion of earnings in their own business, they may not pay the dividends usually associated with value stocks that can cushion their decline in a falling market. Also, since investors buy these stocks because of the expected superior earnings growth, earnings disappointments may result in sharp price declines.
Empower Lifetime 2060 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 Fund’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 Lifetime 2060 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 Fund’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 Fund’s performance.
Empower Lifetime 2060 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 Lifetime 2060 Fund | Foreign Government Securities Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Foreign Government Securities Risk - Foreign government securities may involve risks similar to those of foreign securities. They also may present additional risks, such as the ability of a foreign government or government-related issuer to make timely principal and interest payments on its external debt obligations.
Empower Lifetime 2060 Fund | Liquidity Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Liquidity Risk - An Underlying Fund 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 Fund 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 Fund’s net asset value. Increased redemptions due to a rise in interest rates may require an Underlying Fund to liquidate its holdings at an unfavorable time and/or under adverse or disadvantageous conditions which may negatively affect the Underlying Fund. 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 Lifetime 2060 Fund | Real Estate Investment Trust Real Estate Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Real Estate Investment Trust/Real Estate Risk - Investments in real estate-related instruments may be affected by similar risks as direct investment in real estate and the real estate market generally, including, among others: economic, legal, cultural, governmental, environmental or technological factors that affect property values, rents or occupancies of real estate. Historically, the real estate industry has been cyclical and particularly sensitive to economic downturns and other events that limit demand for real estate, which would adversely impact the value of real estate investments. Real estate companies, including real estate investment trusts (“REITs”) or similar structures, tend to be small and mid cap companies, which means their shares may be more volatile and less liquid. REITs and real estate-related companies may not be diversified due to ownership of a limited number of properties or concentration in a particular geographic region or property type. REITs are also subject to risks associated with changes in interest rates.
Empower Lifetime 2060 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 Fund 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 Fund’s other portfolio holdings, magnified losses resulting from leverage, counterparty risk, high price volatility, liquidity risk, segregation risk, valuation risk and legal restrictions.
Empower Lifetime 2060 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 Fund could underperform in comparison to other funds with similar objectives and investment strategies and may generate losses even in a favorable market.
Empower Lifetime 2060 Fund | Institutional  
Risk Return Abstract rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.12%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Shareholder Services Fees rr_Component1OtherExpensesOverAssets none
Total Other Expenses rr_OtherExpensesOverAssets none
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56% [2]
1 Year rr_ExpenseExampleYear01 $ 57
3 Years rr_ExpenseExampleYear03 179
5 Years rr_ExpenseExampleYear05 313
10 Years rr_ExpenseExampleYear10 $ 701
OneYear rr_AverageAnnualReturnYear01 11.33%
FiveYears rr_AverageAnnualReturnYear05 7.64%
SinceInception rr_AverageAnnualReturnSinceInception 8.30%
InceptionDate rr_AverageAnnualReturnInceptionDate May 01, 2019
Empower Lifetime 2060 Fund | Investor  
Risk Return Abstract rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.12%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Shareholder Services Fees rr_Component1OtherExpensesOverAssets 0.35%
Total Other Expenses rr_OtherExpensesOverAssets 0.35%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.91% [2]
1 Year rr_ExpenseExampleYear01 $ 93
3 Years rr_ExpenseExampleYear03 290
5 Years rr_ExpenseExampleYear05 504
10 Years rr_ExpenseExampleYear10 $ 1,120
2020 rr_AnnualReturn2019 13.93%
2021 rr_AnnualReturn2020 15.89%
2022 rr_AnnualReturn2021 (17.10%)
2023 rr_AnnualReturn2022 16.97%
2024 rr_AnnualReturn2023 10.90%
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 18.84%
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 (22.40%)
OneYear rr_AverageAnnualReturnYear01 10.90%
FiveYears rr_AverageAnnualReturnYear05 7.26%
SinceInception rr_AverageAnnualReturnSinceInception 7.92%
InceptionDate rr_AverageAnnualReturnInceptionDate May 01, 2019
Empower Lifetime 2060 Fund | Service  
Risk Return Abstract rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.12%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.10%
Shareholder Services Fees rr_Component1OtherExpensesOverAssets 0.35%
Total Other Expenses rr_OtherExpensesOverAssets 0.35%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.01% [2]
1 Year rr_ExpenseExampleYear01 $ 103
3 Years rr_ExpenseExampleYear03 322
5 Years rr_ExpenseExampleYear05 558
10 Years rr_ExpenseExampleYear10 $ 1,236
OneYear rr_AverageAnnualReturnYear01 10.81%
FiveYears rr_AverageAnnualReturnYear05 7.18%
SinceInception rr_AverageAnnualReturnSinceInception 7.85%
InceptionDate rr_AverageAnnualReturnInceptionDate May 01, 2019
Empower Lifetime 2060 Fund | MSCI ACWI Index (reflects no deduction for fees, expenses or taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
OneYear rr_AverageAnnualReturnYear01 17.49%
FiveYears rr_AverageAnnualReturnYear05 10.06%
SinceInception rr_AverageAnnualReturnSinceInception 10.52%
Empower Lifetime 2060 Fund | S&P Target Date 2060 Index (reflects no deduction for fees, expenses or taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
OneYear rr_AverageAnnualReturnYear01 14.44%
FiveYears rr_AverageAnnualReturnYear05 9.14%
SinceInception rr_AverageAnnualReturnSinceInception 9.59%
[1] The Acquired Fund Fees and Expenses are estimated for the current fiscal year.
[2] 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.